Pay attention to the suitability of choosing ppe

Other Tattoo

Tattoo Machine,Other Tattoo,Tattoo Gun

Zhongyu Mechanical Equipment Firm , http://www.ywtattoogoods.com

Kiwifruit is rich in vitamin C, can strengthen the immune system, promote wound healing; it contains inositol and amino acids, can inhibit depression, supplement the brain cells consumed by nutrition; its perfect proportion of low sodium and potassium, can be To supplement the physical strength lost during the day and night. For male white-collar workers, kiwifruit has more exotic effects. It contains a lot of arginine, which can promote smooth blood circulation and enhance ***ual ability. For middle-aged and elderly people, the rich pectin and vitamin E contained in fat-free kiwifruit are helpful for heart health and reduce cholesterol. For adolescents and children, amino acids such as arginine contained in kiwifruit can strengthen brain function and promote the secretion of growth hormone.

Deep replenishment

Kiwi extract contains a unique long-term moisturizing factor and high-pressure moisturizing molecular film, can add a lot of water to the body's skin during the day to ease dry skin, rough skin and other phenomena.

Fetal health

Folic acid is a water-soluble B vitamin that plays an important role in cell division and growth, synthesis of nucleic acids, amino acids and proteins, and is an indispensable nutrient for fetal growth and development. Kiwifruit is rich in vitamin B, eat kiwifruit before pregnancy or during pregnancy, helps prevent fetal birth defects and congenital heart disease.

Take blood pressure every day

According to research, a new study in Norway, announced by the American Heart Association Olan at a multi-year meeting, claimed that eating three kiwifruits a day can reduce high blood pressure, which is more significant than eating apples.

In the new study, scientists from the University Hospital of Oslo studied 50 male participants and 68 female participants. The 55-year-old subjects were randomly divided into two groups. One group ate three kiwifruits per day (the "kiwifruit group") and the other group ate one apple per day (the "Apple group"). The study period was eight weeks. . At the beginning of the study, participants had an average blood pressure of 128/85 mm Hg, which was slightly higher than ideal blood pressure (less than 120/80 mm Hg). Except adding fruit, there was no other change in the dietary structure of the participants. The researchers randomly measured the blood pressure of the participants for 24 hours. It was found that eating three kiwifruits each day was better at reducing blood pressure than eating one apple a day. The results of the study showed that after eight weeks, the kiwifruit group had a systolic blood pressure 3.6 mm Hg lower than that of the "Apple" group.

Although Kiwifruit is a small fruit, its green flesh is rich in nutrients, and the higher content of antioxidant lutein has blood pressure lowering effect. However, the cardiologist cautioned that no food has the miraculous effect of reducing heart disease. This study is not to say that kiwifruit is a magical fruit, and the public cannot blindly add lutein supplements. Dr. Elliott Antman, a professor at Harvard Medical School, said that hypertensive patients should not stop drugs without authorization. However, experts from New York-based prophylactic cardiologist Dr Susana Steinbaum agreed that kiwifruit should be included in the heart-healthy “five servings of fruits and vegetables” diet.

Other Products

Fruits And Vegetables,Fresh Fruits And Vegetables,Fresh Fruit And Veggies,Fresh Vegetables

Xi'an Gawen Biotechnology Co., Ltd , https://www.agolyn-bio.com

Like the computer room on campus, there is one seat for each person. The “trainees” wear VR devices and stand on the podium. They are like a group of aliens.

The student in the first row on the left side of the classroom looked a little strange. How did he hit the device and hit the computer screen? He was 29-year-old Dacheng (a pseudonym). In his VR, he saw a group of men and women who were taking methamphetamine. Someone casually put his hand at him, and another handed the straw over - Dacheng opened his mouth to meet him, and he hit the computer.

The Drug Addiction Administration of Zhejiang Province this year initiated the VR detoxification system course, which is called "virtual reality drug addiction assessment and correction system". The way to attend classes is to wear VR glasses to watch videos. At present, there are 4 compulsory isolation detoxification centers in the province that have set up a VR detoxification function room and completed 1,008 effective sample treatments. The sample data show that the system has a 95.9% accuracy rate for the prediction of thirst for drug addicts, and the effective treatment rate is 73.6. %.

If you look at the video, you will be able to get rid of the poison. Qianjiang Evening News reporter came to the first compulsory separation of drug addiction center in Liangzhu, Zhejiang Province.

For the first time in VR class, I opened my mouth to the straw

Unlike ordinary people who experience VR, in addition to wearing VR glasses, detoxification personnel also attach ECG stickers to their left and right arms.

During the viewing process, the heart rate of drug addicts will have varying degrees of change. The system records and evaluates these heart rate changes to obtain an objectively quantified “drug thirst” indicator, which is measured by comparing drug cravings before and after treatment. treatment effect.

A tin foil folded into strips appeared on the screen. It was pinched from both sides and tilted slowly to the left and right. A faint blue flame, slowly dripping from below with tin foil.

I clearly saw Dacheng and another young man next to him sliding up and down the throat. For drug addicts, this is their familiar "skating" and "floating fire". It is a sense of intense ritual when they use drugs. Prelude.

Next is the curling - the meth of tin on the foil is poured on the small bucket of glass. The small bucket is connected to the straw and inserted into the glass jug with water, and then it is filtered and then pulled out of the tobacco pipe. The great achievement is this time. He opened his mouth and slammed into the screen.

The camera Switches again and a door opens slowly. Several men and women in the room were smoking methamphetamine together, sitting around on the sofa and sharing curling, having fallen comfortably on the bed, and fought furiously in front of the computer-- “too much, especially the girl’s The expression is too much like that. Dacheng said that this is the game that their former lives, friends at home, and friends at the hotel loved most.

Dacheng is the only son in the family. Parents do business and neglect management but give him enough money. The bar cafe KTV then seems to be a very natural one to pick up a straw from a friend one night. Drug addiction - arrested - relapsed - was arrested again. In July last year, Dacheng was arrested for the third time. On August 4 last year, he was sent to a compulsory isolation drug treatment center for two years.

Dacheng Yu Yuhuai sees the straw sucking into the screen. The young female instructor softly comforts him: The first lesson is to remind you of your drug addiction. "Okay, otherwise I thought I was white for my detox this year."

Xia Xia police officer told reporters that the VR detoxification program is divided into three stages. The first stage is to induce drug addiction. It reproduces past drug addiction scenes, eliciting drug addicts' memories, analyzing their heart rate changes, and assessing their “drug addiction”. .

The second stage is disgusting treatment. “The establishment of aversion is an important concept in the VR rehab course. Within a few minutes, first use familiar scenes to induce drug addicts to recall, immediately through the contrast picture, such as being caught on the spot, body lesions, etc. The visual impact demonstrates the consequences of long-term drug use, allowing them to psychologically generate disgust and fear."

In the third stage, the return, through the presentation of a warm family life and free daily activities, aroused their longing for a free life, and strengthened their belief in drug addiction.

I have already started to lose my teeth, and my body is not wasted

I also put on my glasses to experience the lesson. The instructor helped me choose a stage of disgust.

The VR effect is outstanding, the surroundings are quiet and strange, and the front is dark. Gradually, there was some light in front of my eyes. A 20-year-old boy, with his skin firm and full of energy, sat in the middle of the room. He was curling and his face was full of satisfaction.

Just like recording the bloom and defeat of a flower, his skin became looser and his face became darker and grayer. The final picture is that after a violent cough, his last tooth and blood fell on his hand. The man was horrified and raised his head. An old face looked desperately at the camera.

The drug addict A Qiang showed me his teeth. "I have already lost my teeth. My legs have also been broken once. The doctor said that osteoporosis. Did you say that my body has been abolished?" 28 years old.

“You have children. I haven’t got married yet. Right. There are more scary lessons...” Dacheng gave me a look and suddenly stopped.

The VR in the disgusted stage does have a more challenging picture of psychological endurance. Part of the skin was covered with lice, with ulceration, looked disgusting, and the camera was further away. A drug addict half lying in his chair, his bare lower body was festering and he could not wear his trousers.

"You said that if you lost your tooth, you can get a denture. That's broken. Isn't it over? I'm the only child in my family. I haven't married yet have children." In the drug rehabilitation center, Dacheng always wanted to go out and find a job. The woman had a child to live, and these, formerly the parents ask him repeatedly, he is extremely disdained.

The co-developer of this course is Saihongsi Science and Technology Co., Ltd. Dr. Wu Xuanchen, who specializes in psychology research, is one of the main project leaders.

“VR detoxification is actually a kind of psychological intervention intervention. The core logic is to reproduce the drug use scene through VR video first, recreate the memory of the drug addicts on the behavior of methamphetamine use, and then establish adversarial conditioning through memory extraction and aversion treatment. "Wu Xuanchen explained," After people's memory is aroused, there is a period of ten or so minutes of vulnerability, this time is the best time to use repulsive therapy to rewrite memory."

The simple understanding is to change the drug users' memory and reflection on drugs, such as the good experience they could have thought of when they saw drugs, and gradually become a dreadful sight when they see drugs, such as physical diseases or police officers breaking into the door. The scene, thereby reducing the thirst for drugs, until the same as ordinary people.

“Our VR screens are meticulously designed. The former task force members went to multiple compulsory detoxification centers to investigate many drug addicts, their previous drug addicts, sites, and their innermost fears, etc., and they were photographed according to the previous investigation. Some of the pictures are indeed heavy in taste, and our editors splintered with scissors. However, only in this way can we deepen the sense of disgust."

I want to go out, normal days

The final picture of VR detoxification is a beautiful, splendid urban environment and enjoyable family life. The most important thing is that people in the picture are free.

"Rehabilitation seems to be physically better, not so uncomfortable, and the most unpleasant is the feeling of losing freedom," and Dacheng, who has left the compulsory isolation drug treatment center for a year, said, "At present, only parents at home know that I have taken drugs, so I Going out should be able to live a normal life, especially when I bring my big grandmother to hope that I can get married quickly. My dad said to help me only this time and let me figure it out.”

“After I was arrested, my wife divorced me. You said who I am going to find out?” Ah Qiang wanted to go out and was afraid again. Afraid of seeing the gang of "old friends" and sucking again.

The instructor said that for the drug addicts, the most terrible thing is to return to the original circle.

"After I was arrested, my wife divorced me. You said who I am going to find out?" A Qiang said.

22mm Metal Push Button

22mm Metal Push Button,High Quality 22mm Metal Push Button,22mm Metal Push Button Details, CN

Connector Terminal Co., Ltd. , http://www.electricalmcb.com

Recently, Siping Shenghua PVC resin has won the title of Famous Brand Product in Jilin Province. As one of the company's leading products, over the years, they have always used the opinions of users as a key research topic in production, optimized the process, and solved the “difficult miscellaneous diseases”, and the quality of products has continuously increased.
The company is the only PVC resin manufacturer in Jilin Province with a 50-year manufacturing history. Over the years, they have treated after-sales service as an important task for corporate management, listening to user opinions, understanding user needs, and conducting quarterly satisfaction. Assessment activities.
For a period of time, users have complained that the product's whiteness and color point cannot meet their production requirements. The PVC plant has taken 16 production problems, such as the gas stripping tower gas flow reforming and the bottom reforming of the polymerizer, as the key issues. The factory director Leng Ming personally took the lead to form a quality research team. After a period of transformation, the product's aging whiteness was increased from the original 74% to 85%, and the superior grade product requirements were achieved. The absorption of 100G plasticizer was increased by less than 20%. To more than 23%, the product first-rate product rate increased from 60% to 99%. Last year, after their scale was increased, the resin production increased from 30,000 tons to 80,000 tons, and the product not only failed to backlog but appeared zero inventory.

Cardboard Freezer Boxes

Plastic Plate,Disposable Plate,Cell Culture Plate,Culture Plate

Freezer Racks Co., Ltd. , http://www.sorfapipette.com

In order to extend the placing range of concrete pump and enhance the mechanization of pumping construction, our company have researched and developed the new products-a series of concrete distributor HGY-13, HGY-15 ,HGY-17,HGY19 and HGY23/4R (the number is the placing radius)
The concrete distributor is the assorted equipment of concrete pump. Its application extends the delivery range of concrete, efficiently solves the problem of wall painting and plays an important role in enhancing construction efficiency and reducing the labor intensity.

This series of concrete distributor have reasonable design and reliable structure. The placing structure adopts 360° rotary arm support. The machine is operated by hands and can rotate flexibly. The tower is of a proper height so you can change the placing position freely only by pulling the robe easily. So it is highly efficient, reliable and economic.

Part II-13m:  Main technical parameter

Part II-15m:  Main technical parameter

DAWIN Machinery is a company specializing in the research, design and production of construction machinery for nearly 20 years. We provide the most reasonable solution according to the special demand from different customers. Our main products for construction machinery are as follows: Concrete mixer, concrete batching plant, diesel concrete mixer, concrete pump,  sand so on. With several researching and producing bases in China, we can provide the powerful technical service and upper quality machinery for the clients all over the world.   

1. Best manufacturer in North China.



2. A factory with over 20 years' experience.



3. Professional teamwork of every process.



4. Competitive price and perfect quality.



5. Efficient after-sale service.


DAWIN Machinery Answers:

1. Why should I choose your Trailer Concrete Pump?/ Placing Boom/Placer
We are a professional manufacturer of Trailer Concrete Pump for 13 years,In our country, we attended many national projects and the customers are satisfied with our quality. All these can meet your requirements. So I think our product is your best choice.

2. Do you have CE certification and do you have ISO9001:2008 certification?
Yes, all our Trailer Concrete Pump are CE certified and our production process has passed the ISO9001:2008 standards.

3. Which country have you exported to?
DAWIN Trailer Concrete Pump have exported our products to Algeria, Indonesia, Russia, Kazakhstan, Kyrgyzstan and Turkey etc.

4. What about the Truck Concrete Boom Pump/ Placing Boom/Placer delivery time?
Generally, the manufacturing time is about 15-30 days. The transport time is different according to your region.

5. What about the after-sale service and product warranty.
We will dispatch our engineers to your country to help you with the installation of Trailer Concrete Pump and training your workers. The warranty time is 12 month after it built.

6. What about the price of Truck Concrete Boom Pump/ Placing Boom/Placer?
We promise to give you the most favorable price to establish a long-term win-win cooperation with you.

7. What payment method can you accept?
Generally, T/T or 100% LC at sight is the best for us.

8. Can we be your agent in our country?
Yes, no problems for our Trailer Concrete Pump .

After-sale Service
1.May enjoy the life-long service after you buy our products.
2.Training the operator for free.
3. Under the condition that foundation, water source, power source, aggregate, hosting
   equipment, auxiliary staff is ready. Engineers are available if you need.
4.Certain quantity stochastic tool will be provided while delivering goods.
5.Within 48 hours service will be available according to different regions after received
    the telephone.
6. For exported products, Our company sends the constructor to help to operate and
    management equipment, time according to your needs. The related fee will be undertaken
    by buyers.
7. Promptly provides the fittings according to users' demands, handles for the user consigns
    for shipment.
8. All products (easy worn parts not included) loss caused by non-human factors will be
    free of charge for half a year.
9. Provides the technology advisory service as necessary.
10. Please contact me via telephone when you have any problems with the plant.



Dear  Customer:

Welcome to our website and hope our trailer concrete pump/Placing Boom / Concerete Placer will make you satisfied.We think creatively,design bravely,manufacture precisely and loyalty to our customers. And we have our own factory.so We can produce the products,according to customer requirements .
   
Just slow down your fast lifestyle and enjoy our machinery.

Yours sincerely
Dawin Machinery

Parts And Accessories

Auto Engine Part,Turbocharger K03,Parts And Accessories

Mingxiao Turbocharger MFG Co., Ltd. , http://www.dd-autoparts.com

The product name specification material steel factory/origin price (yuan/ton) than yesterday last week than the previous month General line Φ6.5mm Q235 Handan Steel 5050 10 0 240 Common line Φ8mm Q235 Handan Steel 5050 10 0 240 Common line Φ10mm Q235 Handan Steel 5050 10 0 240 High Line Φ6.5mm Q235 Guangzhou Steel 5040 0 -30 220 High Line Φ6.5mm Q235 Handan Steel 5080 0 0 280 High Line Φ6.5mm Q335 Beitai 5010 10 0 330 High Line Φ6.5mm Q335 Pingsteel 5050 0 0 290 Rebar Φ12mm HRB335 Masteel 5230 0 0 360 Rebar Φ12mm HRB335 Tangsteel 5230 0 0 360 Rebar Φ18-25mm HRB335 Masteel 5000 0 0 280 Rebar Φ16-25mm HRB335 Tangsteel 5000 0 0 240 Rebar Φ18-25mm HRB335 Liugang 50000 0 280 Rebar Φ18-25mm HRB335 Pinggang 5020 0 0 300 Rebar Φ18-25mm HRB335 Jianlong 4960 0 -20 330 Rebar Φ18-25mm HRB335 Shougang 5010 0 0 290 Rebar Φ16-25mm HRB335 New Fu 4960 0 -20 310 Rebar Φ16-25mm HRB335 Guangzhou Steel 5110 0 0 340 Rebar Φ12mm HRB335 Handan Steel 5370 0 0 370 Rebar Φ14mm HRB335 Handan Steel 5210 0 0 310 Rebar Φ16mm HRB335 Handan Steel 5160 0 0 250 Rebar Φ18-25mm HRB335 Handan Steel 5070 0 0 310 Rebar Φ16-25mm HRB335 Yufeng 50 10 0 -10 330 Threaded steel Φ16-25mm HRB335 Cold steel 5060 0 0 340 Threaded steel Φ16-25mm HRB335 Wanxin 5010 0 0 310 Grade III rebar Φ12mm HRB 400 Masteel 5350 0 0 250 Grade III rebar Φ14mm HRB400 Masteel 5350 0 0 250 Level III rebar Φ16-25mm HRB400 Masteel 5250 0 0 300 Grade III rebar Φ16-25mm HRB400 Grade 5300 0 0 250 Grade III rebar Φ16-25mm HRB400 Grade 5330 0 0 320 Grade III rebar Φ18 -25mm HRB400 Tangshan Steel 5250 0 0 330 Grade III Rebar Φ18-Φ25mm HRB400 Ping Steel 5250 0 0 330 Hot Roll 2.75mm*1250*C Q235 Tong Steel 5700 100 200 400 Hot Roll 2.75mm*1250*C Q235 Beads Steel 5700 100 200 470 Hot Roll 2.75mm*1250*C Q235 Handan Steel 5700 100 200 470 Hot Roll 2.75mm*1250*C Q235 Tang Steel 5700 100 200 500 Hot Roll 3.0mm*1250*C Q235 Angang Steel 5600 100 180 520 Hot rolled coil 3.0mm*1500*C Q235 Tangsteel 5600 100 180 500 Hot rolled coil 4.75mm*1500*C Q235 Tangsteel 5380 60 80 580 Hot rolled coil 4.75mm*1500*C Q235 Ben Steel 5380 60 80 580 Hot rolled coil 5.5mm*1500*C Q235 Tangsteel 5380 60 80 580 Hot rolled coil 5.75mm*1500*C Q235 Liugang 5380 60 80 580 Hot rolled coil 5.75mm*1500*C Q235 Angang Steel 5380 60 80 580 Hot rolled coil 5.75mm*1500*C Q235 Masteel 5510 60 110 630 Hot rolled coil 7.5mm*1500*C Q235 Ben Steel 5380 60 130 580 Hot rolled coil 7.5mm*1500*C Q235 Tangang Steel 5380 60 80 580 Hot rolled coil 11.5*1500*C Q235 Tangshan Iron & Steel 5380 60 80 580 Product Name Specification Material Steel/Origin Price (Yuan/Ton) Than Yesterday Last Month 183-232mm*2.5 DF01 Semi-Steel 5000 0 0 200 Strip 295-355mm*2.5 DF01 Ruifeng 5000 0 90 300 Strip 295-352mm*2.5 Q195L Tangshan Jianlong 4980 0 70 250 Strip 275mm*2.5 Q195L Gangue Steel 5050 0 100 270 Strip 240-255mm* 2.5 Q195 steel 4980 0 30 250 steel strip 255mm*2.5 Q235 Tianjin rolling a 5010 0 50 240 strip steel 352mm*2.75 Q235 5050 0 130 320 strip steel 434mm*3.0 Q235 Tangshan Steel 4930 0 10 200 strip steel 680-720mm *5.0 HG5 Beidai 5000 0 90 450 Strip 438-520mm*2.75 HG5 Xingye 5000 0 100 250 Strip 680-735mm*5.0 HG5 Ting Ting 4880 0 0 330 Strip 505-700mm*2.75 HG5 Latitude 5150 0 120 350 Cold Rolling Rolls 1.0mm*1250*2500 SPCC Angang 6500 0 200 650 Cold rolled coil 1.2mm*1250*2500 ST12 Angang 6500 0 200 650 Cold rolled coil 2.0mm*1250*2500 ST12/DC01 Angang 6500 0 200 650 Cold Rolls 3.0mm*1250*2500 ST12/DC01 Angang 6500 0 200 650 Cold rolled coils 1.0mm*1500*C SPCC Benxi 6450 0 270 650 Cold rolled coils 1.0*1250*2500 SPCC Wugang 6450 0 270 620 Cold rolled Roll 1.5mm*1250*2500 ST12 Wugang 6450 0 270 620 Cold rolled coil 2.0mm*1250*2500 ST12 Wugang 6450 0 270 620 Cold rolled coil 3.0mm*1250*2500 ST12 Wugang 6450 0 270 620 Cold rolled coil 1.0mm*1250*c ST12 Kunming Steel 6400 0 250 650 Cold rolled coil 1.0mm*1250*c ST12 Masteel 6380 0 200 580 Cold rolled coil 1.0mm*1250*c ST12 Handan Steel 6380 0 230 600 Puzhong Board 6mm Q235B Xinyu 6400 0 130 690 Puzhong Plate 8mm Q235A Handan Steel 6350 0 130 690 Puzhong Plate 10mm Q235A Handan Steel 6050 0 130 690 Puzhong Plate 14-20mm Q235A Handan Steel 5880 0 130 690 Puzhong Plate 22-28mm Q235B 韶Steel 5880 0 130 690 Puzhong plate 10mm Q235A Liuzhou steel 6050 0 130 690 Puzhong plate 12mm Q235A Liu steel 5930 0 130 690 Puzhong plate 14-20mm Q235A Liuzhou steel 5880 0 130 690 Puzhong plate 8mm Q235A Xinyu 6350 0 130 690 Puzhong board 10mm Q235A Xinyu 6050 0 130 690 Puzhong board 12mm Q235A Xinyu 5930 0 130 690 Puzhong board 14-20mm Q235A Xinyu 5880 0 130 690 low alloy board 8mm Q345 韶6500 0 130 690 Low-alloy plate 10mm Q345 Low-alloy plate 6250 0 130 690 Low-alloy plate 12mm Q345 Low-alloy plate 6100 0 130 690 Low-alloy plate 20mm Q345 Handan steel 6080 0 130 690 Boiler plate 6mm 20g Xinyu 6600 0 150 700 Boiler plate 8mm 20g Liugang 6500 0 150 650 Boiler Plate 10mm 20g Liuzhou Steel 6250 0 150 650 Boiler Plate 12mm 20g Liuzhou Steel 6000 0 150 640 Boiler Plate 14mm 20g Liuzhou Steel 6000 0 150 640 Boiler Plate 20-39mm 20g Liuzhou Steel 6300 0 150 600 Product Name Specification Material Steel/Origin Price (Yuan/Ton) Than Yesterday Last Shipboard 8mm 16MnR Liu Gang 6830 0 150 1000 Container Plate 10mm 16MnR Liuzhou Steel 6650 0 150 1000 Container Plate 12mm 16MnR Liusteel/Shougang 6550 0 150 1050 Container Plate 14-20mm 16MnR Liuzhou Steel Shougang 6500 0 150 1000 Container Plate 22-30mm 16MnR Liuzhou Steel Shougang 6550 0 150 1000 Container Plate 8mm 16MnR Xinyu 6800 0 150 950 Container Plate 10mm 16MnR Xinyu 6600 0 150 950 Container Plate 12mm 16MnR Xinyu 6450 0 150 950 Container plate 14-20mm 16MnR Xinyu 6400 0 150 950 Seamless pipe Φ25*2.5 20# Wuxi 7300 0 500 1250 Seamless pipe Φ38*3 20# Xinyu 6550 0 450 1130 Seamless pipe Φ48*4 20 # Xinyu 6550 0 450 1130 seamless pipe Φ5 7*3.5 20# Xinyu 6500 0 500 1080 Seamless pipe Φ60*4 20# Xinyu 6500 0 500 1080 Seamless pipe Φ89*4.5 20# Guangxi 6500 0 500 1080 Seamless pipe Φ108*4.5 20# Angang 6500 0 520 1250 None Seam Φ219*7 20# Steel 6550 0 550 950 Seamless Φ219*7 20# Steel 6500 0 500 1000 I-beam 18#/a Q235 Sea Steel 4850 0 120 420 I-beam 25#/a Q235 Lay Steel 5100 0 110 400 I-beam 25#/b Q235 Wusteel 5210 0 110 400 I-beam 25#/b Q235 Laiwu Steel 5110 0 110 400 I-beam 36#/b Q235 Laiwu Steel 5160 0 110 400 I-beam 40 #/b Q235 Laiwu Steel 5180 0 110 400 Channels 16#a Q235 Masteel 5200 0 140 400 Channels 16#a Q235 Masteel 4930 0 120 430 Channels 20# Q235 Masteel 5200 0 100 420 Channel 16#a Q235 Ma Steel 5220 0 120 420 Channel 20# Q235 Ma Steel 5320 0 120 410 Angle Steel 40*5mm Q235 Tong Steel 5330 0 100 480 Angle Steel 50*50*5mm Q235 Ma Steel 5330 0 100 480 Angle Steel 50*50*5mm Q235 Tong Steel 5300 0 120 500 Angle steel 140*140*5mm Q235 Ma steel 5300 0 100 440 Galvanized coil 0.7mm*1000*C ST02Z Angang 6600 0 450 800 Galvanized coil 1.0mm*1000*C ST02Z Angang 6400 0 450 720 Galvanized Volume 0.7mm*1000*C ST02Z Benxi 6580 0 460 780 Galvanized Roll 1.0mm*1000*C ST02Z Benxi Steel 6400 0 470 720 Galvanized Roll 1.0mm*1000*C DC51D+Z Bengui 6400 0 470 720 Galvanized Roll 1.0mm*1000*C DC51D+Z Masteel 6780 0 880 1130 Coil 0.326mm*1200*C SGCC Taiwan Luanhui 8400 0 400 400 Color Coil 0.376mm*1000*C SGCC Taiwan Luanhui 8300 0 400 400 Color Coil 0.5mm*1000*C SGCC Baosteel 8400 0 700 700 Color Coated Volume 0.426mm*1000*C CGCC Shunpu 7900 0 350 350 Color Coil 0.476mm*1000*C CGCC Shunpu 7700 0 350 350

Chain

Great Intl Holdings Limited , http://www.qdatvwheel.com

The product name specification material steel factory/origin price (yuan/ton) is Φ6.5mm higher than that of last month than last week General line Φ6.5mm Q235 Handan Steel 5190 0 150 380 Common Line Φ8mm Q235 Handan Steel 5190 0 150 380 Common Line Φ10mm Q235 Handan Steel 5190 0 150 380 High Line Φ6.5mm Q235 Wide Steel 5180 0 140 360 High Line Φ6.5mm Q235 High Speed ​​Line Φ6.5mm High Speed ​​Line Φ6.5mm Q520 Low Voltage 5150 0 150 470 High Line Φ6.5mm Q335 Pinggang 5190 0 140 430 Rebar Φ12mm HRB335 Masteel 5400 0 170 530 Rebar Φ12mm HRB335 Tang Steel 5400 0 170 530 Rebar Φ18-25mm HRB335 Ma Steel 5210 0 210 490 Rebar Φ16-25mm HRB335 Tang Steel 5200 0 200 440 Rebar Φ18-25mm HRB335 Liu Gang 5230 0 230 510 Rebar Φ18-25mm HRB335 Ping Steel 5260 0 240 540 Rebar Φ18-25mm HRB335 Jianlong 5160 0 200 530 Rebar Φ18-25mm HRB335 Shougang 5160 0 150 440 Rebar Φ16-25mm HRB335 Xinfu 5160 0 200 510 Rebar Φ16-25mm HRB335 Broad Steel 5260 0 150 490 Rebar Φ12mm HRB335 Rebar 5530 0 160 530 Rebar Φ14mm HRB335 Rebar 5370 0 160 470 Rebar Φ16mm HRB335 Rebar 5320 0 160 400 Rebar Φ18-25mm HRB335 Handan Steel 5260 0 190 490 Welded steel Φ16-25mm HRB335 Yufeng 5220 0 210 540 Rebar Φ16-25mm HRB335 Cold steel 5250 0 190 530 Rebar Φ16-25mm HRB335 Wanxin 5230 0 220 530 Grade III rebar Φ12mm HRB400 Masteel 5480 0 130 380 Grade III Rebar Φ14mm HRB400 Masteel 5480 0 130 380 Grade III Rebar Φ16-25mm HRB400 Masteel 5380 0 130 430 Grade III Rebar Φ16-25mm HRB400 Grade 5550 0 250 500 Grade III Rebar Φ16-25mm HRB400 Guangzhou Steel 5600 0 270 590 Grade III Rebar Φ18-25mm HRB400 唐钢5380 0 130 460 Grade III Rebar Φ18-Φ25mm HRB400 萍钢5380 0 130 460 HR Roll 2.75mm*1250*C Q235 通钢5700 0 200 400 HR Roll 2.75 Mm*1250*C Q235 Bead Steel 5700 0 200 470 Hot Roll 2.75mm*1250*C Q235 Handan Steel 5700 0 200 470 Hot Roll 2.75mm*1250*C Q235 Tang Steel 5700 0 200 500 Hot Roll 3.0mm* 1250*C Q235 Angang/Shandong Iron & Steel 5600 0 150 520 Hot Roll 3mm*1500*C Q235 Tangsteel 5600 0 150 500 Hot Roll 4.75mm*1500*C Q235 Tang 5420 0 120 620 Hot Roll 4.75mm* 1500*C Q235 Bengang 5420 0 120 620 Hot Roll 5.5mm*1500*C Q235 Tang 5420 0 120 620 Hot Roll 5.75mm*1500*C Q235 Liugang 5420 0 120 620 Hot rolled coil 5.75mm*1500*C Q235 Angang/BenSteel 5420 0 120 620 Hot rolled coil 5.75mm*1500*C Q235 Masteel 5510 0 110 630 Hot rolled coil 7.5mm*1500*C Q235 This steel 5420 0 170 620 Hot rolled coil 7.5mm*1500*C Q235 Tangsteel 5420 0 120 620 Hot rolled coil 11.5*1500*C Q235 Tanggang 5420 0 120 620 Product Name Specification Material Steel/Origin Price (Yuan/Ton) Than yesterday Last month, strip steel 183-232mm*2.5 DF01 steel 5080 0 80 280 strip steel 295-355mm*2.5 DF01 Ruifeng 5080 0 80 380 strip steel 295-352mm*2.5 Q195L Tangshan Jianlong 4980 0 0 250 strip 275mm*2.5 Q195L Handan Steel 5080 0 30 300 Steel Strip 240-255mm*2.5 Q195 Tong Steel 4980 0 0 250 Strip Steel 255mm*2.5 Q235 Tianjin Rolling 5010 0 0 240 Strip 352mm*2.75 Q235 Tang Steel 5050 0 0 320 Strip 434mm* 3.0 Q235 Tangshan Steel 4930 0 0 200 Strip 680-720mm*5.0 HG5 Beitai 5100 0 100 550 Strip 438-520mm*2.75 HG5 Xingye 5050 0 50 300 Strip 680-735mm*5.0 HG5 Songting 5000 0 120 450 Strip 505-700mm*2.75 HG5 Latitude 5280 0 130 480 Cold rolled coil 1.0mm*1250*2500 SPCC Angang 6550 0 50 650 Cold rolled coil 1.2mm*1250*2500 ST12 Angang 6550 0 50 650 Cold rolled coil 2.0mm* 1250*2500 ST12/ DC01 Angang Steel 6550 0 50 650 Cold rolled coil 3.0mm*1250*2500 ST12/DC01 Angang 6550 0 50 650 Cold rolled coil 1.0mm*1500*C SPCC Steel 6500 0 100 650 Cold rolled coil 1.0*1250*2500 SPCC Wuhan Steel 6500 0 100 650 Cold rolled coil 1.5mm*1250*2500 ST12 Wuhan Iron and Steel 6500 0 100 650 Cold rolled coil 2.0mm*1250*2500 ST12 Wugang 6500 0 100 650 Cold rolled coil 3.0mm*1250*2500 ST12 Wugang 6500 0 100 650 Cold rolled coil 1.0mm*1250*c ST12 Kunming 6430 0 30 630 Cold rolled coil 1.0mm*1250*c ST12 Masteel 6430 0 50 630 Cold rolled coil 1.0mm*1250*c ST12 邯Steel 6430 0 50 630 Puzhong board 6mm Q235B Xinyu 6550 0 150 790 Puzhong board 8mm Q235A Handan steel 6500 0 150 790 Puzhong board 10mm Q235A Handan steel 6200 0 150 790 Puzhong board 14-20mm Q235A Handan Steel 6030 0 150 790 Puzhong Plate 22-28mm Q235B Handan Steel 6030 0 150 790 Puzhong Plate 10mm Q235A Liuzhou Steel 6200 0 150 790 Puzhong Plate 12mm Q235A Liusteel 6080 0 150 790 Puzhong Plate 14-20mm Q235A Liugang 6030 0 150 790 Puzhong Board 8mm Q235A Xinyu 6500 0 150 790 Puzhong board 10mm Q235A Xinyu 6200 0 150 790 Puzhong board 12mm Q235A Xinyu 6080 0 150 790 Puzhong board 14-20mm Q235A Xinyu 6030 0 150 790 Alloy plate 8mm Q345 Handan steel 6650 0 150 790 Low alloy plate 10mm Q345 Handan steel 6400 0 150 790 Low alloy plate 12mm Q345 Handan steel 6250 0 150 790 Low alloy plate 20mm Q345 Handan steel 6230 0 150 790 Boiler plate 6mm 20g Xinyu 6600 0 0 700 Boiler Plate 8mm 20g Liuzhou Steel 6500 0 0 650 Boiler Plate 10mm 20g Liuzhou Steel 6250 0 0 650 Boiler Plate 12mm 20g Liuzhou Steel 6000 0 0 640 Boiler Plate 14mm 20g Liuzhou Steel 6000 0 0 640 Boiler Plate 20-39mm 20g Liu Gang 6300 0 0 600 Name Specification Material Steel Price/Year Price (Yuan/Ton) Yesterday Last Week than the previous month Container Plate 8mm 16MnR Liu Gang 6830 0 1000 Container Plate 10mm 16MnR Liu Steel 6650 0 1000 Container Plate 12mm 16MnR Willow Steel/Shougang 6550 0 0 1050 Container Plate 14-20mm 16MnR Liuzhou Steel/Shougang 6500 0 0 1000 Container Plate 22-30mm 16MnR Liusteel/Shougang 6550 0 0 1000 Container Plate 8mm 16MnR Xinyu 6800 0 0 950 Container Plate 10mm 16MnR Xinyu 6600 0 0 950 Container Plate 12mm 16MnR Xinyu 6450 0 0 950 Container Plate 14-20mm 16MnR Xinyu 6400 0 0 950 Seamless Pipe Φ25*2.5 20# Wuxi 7300 0 500 1250 Seamless Pipe Φ38*3 20# Xinyu 6550 0 450 1130 None Pipe Φ48*4 20# Xinyu 6550 0 450 1130 Pipe Φ57*3.5 20# Xinyu 6500 0 500 1080 Seamless pipe Φ60*4 20# Xinyu 6500 0 500 1080 Seamless pipe Φ89*4.5 20# Guangxi 6500 0 500 1080 Seamless pipe Φ108*4.5 20# Angang 6500 0 520 1250 Seamless pipe Φ219 *7 20# Steel 6550 0 550 950 Seamless Pipe Φ219*7 20# Steel 6500 0 500 1000 I-beam 18#/a Q235 Sea Steel 4850 0 120 420 I-beam 25#/a Q235 Laiwu Steel 5100 0 110 400 I-beam 25#/b Q235 Wugang 5210 0 110 400 I-beam 25#/b Q235 Laiwu Steel 5110 0 110 400 I-beam 36#/b Q235 Laiwu Steel 5160 0 110 400 I-beam 40#/b Q235 Laiwu Steel 5180 0 110 400 Channel Steel 16#a Q235 Ma Steel 5200 0 140 400 Channel Steel 16#a Q235 Ma Steel 4930 0 120 430 Channel Steel 20# Q235 Ma Steel 5200 0 100 420 Channel Steel 16#a Q235 Ma Steel 5220 0 120 420 Channel 20# Q235 Ma Steel 5320 0 120 410 Angle Steel 40*5mm Q235 Tong Steel 5330 0 100 480 Angle Steel 50*50*5mm Q235 Ma Steel 5330 0 100 480 Angle Steel 50*50*5mm Q235 Tong Steel 5300 0 120 500 Angle steel 140*140*5mm Q235 Ma steel 5300 0 100 440 Galvanized coil 0.7mm*1000*C ST02Z Angang 6600 0 0 800 Galvanized coil 1.0mm*1000*C ST02Z Angang 6400 0 0 720 Galvanized coil 0.7mm *1000*C ST02Z Benxi Steel 6580 0 0 780 Galvanized Roll 1.0mm*1000* C ST02Z Bengang 6400 0 0 720 Galvanized coil 1.0mm*1000*C DC51D+Z Bengang 6400 0 0 720 Galvanized coil 1.0mm*1000*C DC51D+Z Masteel 6780 0 0 1130 Color coated roll 0.326mm* 1200*C SGCC Taiwan Yonghui 8400 0 0 400 Color Coil 0.376mm*1000*C SGCC Taiwan Yonghui 8300 0 0 400 Color Coil 0.5mm*1000*C SGCC Baosteel 8400 0 0700 Color Coil 0.426mm*1000 *C CGCC Shun Pu 7900 0 0 350 Color Coil 0.476mm*1000*C CGCC Shun Pu 7700 0 0 350

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At present, most of the newly built residential areas are equipped with visual or non-visual building intercom systems. This system undoubtedly brings great convenience to the residents of the community, and also increases the sense of security of the residents. For some residential quarters with large investment, walkie-talkies are often installed at the entrance and exit gates of residential quarters in order to satisfy the residents' access requirements to the maximum. In this case, the following situations are worth exploring.

1 installation position

At present, most residential out-of-town walkie-talkies are installed on the walls or outer walls of guard houses. This type of installation is considered by the author to be really inappropriate, mainly as follows:

(1) Long-term sun and rain affects the service life of the intercom device. Especially in Shenzhen, long sunshine hours and more typhoon storms have a greater impact on the reliability and longevity of intercom devices.

(2) The guards cannot effectively prevent the foreign visitors from making mistakes (especially late at night) and cannot grasp the time and frequency of use of the intercom device. Therefore, starting from the "people-oriented" concept, it is absolutely necessary to move the door to the room.

(3) The vast majority of foreign visitors not only do not operate the intercom device, but also rarely operate and use it. They are not familiar with the operation steps. Therefore, they often require the assistance of a guard, and some delivery and driving visits are inconvenient. Use it personally.

In view of the above factors, the author believes that the walkie-talkie should be installed in the guard room only for the use of the gatekeeper, which is more reasonable. This reflects the humanized management.

2 intercom method

The existing walkie-talkie is divided into visual and non-visual modes. Under normal circumstances, the cell door walkie-talkie can adopt non-visual intercom mode. The reasons are as follows:

(1) The walkie-talkie has been installed in the guard room and is limited to the guard operation. That is, the two sides of the intercom may only be the tenants and the guards;

(2) Because only the interviewed households need to confirm that something exists, there are rare occurrences of impostor. It is no longer necessary to use visual intercom, even if the household needs to confirm the identity of the visitor, it can be completely in the first floor of each building. Video intercom door confirmation;

(3) Because the population in the general community is far away from the monitoring center, the video image quality will be affected by the transmission distance.

(4) Save investment, but also save maintenance غير مجاز مي باشدts that may occur in the future. The reliability of the current video intercom equipment video image quality can not be guaranteed within 3 to 5 years after it is put into use. Frequent maintenance will cause developers to spend a lot of financial and material resources.

3 The necessity of installation
According to the “Guidelines and Technical Guidelines for the Construction of Intelligent Systems for Residential Quarters” (Registration of the Housing Industry Promotion Center of the Ministry of Construction, 2003.2), the system implementation details of the guest intercom system are as follows:

One-star: Anti-theft door control and voice intercom devices are installed in the residential corridor population, and tenants can control the opening of building security doors.

Two-star: The visitor intercom device can be networked, and the main population of the community can install a visitor intercom device.

Three-star: In addition to having all the functions of two-stars, it should also maintain advanced technology to facilitate system integration, easy operation and maintenance, and good scalability.

According to the above rules, whether or not to install a community walkie-talkie should be based on comprehensive consideration of several factors such as the function, grade positioning, and size of investment in the constructed community.

In the design, the author once investigated the situation of people and vehicles entering a residential area. The sampling conditions are as follows.

The community has a building area of ​​180,000 m2, a total of 1120 households, and the occupancy rate is above 97%. There are 740 private cars (vehicles) pre-owned. From the above table, the following conditions can be found:

(1) The peak time for personnel and vehicles entering the community is after the afternoon of work;

(2) All types of delivery personnel and vehicles continue to enter the community;

(3) There is less use of walkie-talkie in the community;

(4) The use of wireless walkie-talkies by guards is more common. The main reasons for this are:

(1) It is convenient and fast to use wireless walkie-talkies to communicate with the monitoring center, and does not interfere with the other work of the guards;

(2) The walkie-talkie cannot be used when visiting foreign vehicles. Especially during the peak hours of work, there are often 5 or 6 vehicles queuing at the gate. In order to ensure that there are no traffic jams, only the wireless intercoms can notify the building security guards;

(3) To ensure the maximum quality of call quality between the residents and the building's entrance door radio and the monitoring center, and to reduce possible channel occupancy. Avoid the unnecessary troubles and misunderstandings caused by households;

(4) The guard's management experience. The guards with longer working hours are familiar with the frequent residents, which is very helpful to reduce the number of use of the population walkie-talkies;

(5) In the middle of the night, it was inconvenient to use an entrance walkie-talkie to disturb the rest of the household;

(6) The density of personnel entering the peak hours of rush hours is too high. The operation of the entrance and exit walkie-talkie delays too much work time, and it is easy to cause loopholes in the guard's security work.

For the building intercom system, there is no description about the setting of the cell door machine in the relevant section of "12.3.2 Residential Area" in the "Intelligent Architecture Design Standard" GB/T 50314-2000, only in the "12.3" In the “1-3 Households” column, “Door Intercom and Building Entrance/Exit Door Lock Control Devices” should be set up, and this is not covered in the “Household Intelligent Electrical Design Manual” (written by China Building Standard Design Institute). As described above, how to set up a community out-of-town walkie-talkie device has a large relationship with the grade and scale of the residential community. In general, it is more convenient and safer to use a wireless intercom method (between the community gate and the monitoring center) and a cell door intercom system for a large-scale residential area. Building intercom equipment usually enters the maintenance period after being put into use for 3-5 years, and is closely related to the daily life of residents. Therefore, it cannot be taken carelessly. If we can proceed from a convenient and practical point of view, we will be able to solve this problem very well. .

references

1Research on Design Standards of Chinese Buildings for "Intelligent Electrical Design Manual of Residential Buildings"

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First, the basic principles of maintenance

1. Basic principles to be followed when performing queuing maintenance The maintenance judgment should start with the simplest things. Simple things, on the one hand, refer to observation, on the other hand, it refers to a simple environment. The simple thing is observation, which includes:

1.1 Circumstance and position of the environment around the queuing equipment (wireless communication queuing equipment, to find out whether there is interference source of wireless communication outside, focusing on observing whether there is railway, subway or airport and other similar wireless communication equipment in the surrounding environment), Power, connectors, other equipment, temperature and humidity, etc.

1.2 The phenomena exhibited by the Queue, the contents of the display, and the differences between them and the normal situation;

1.3 Internal environmental conditions, dust, connections, device colors, indicator status, etc.

1.4 The status of the software configuration of the software, system resources, operating system used, what other software is installed, hardware driver version;

Starting from the simplest things is conducive to energy concentration, which is conducive to the judgment and positioning of faults. Certain attention must be paid to making judgments and maintenance after careful observation.

2. According to the observed phenomenon, it is necessary to "first think about doing it again."

The first thing to do afterwards includes the following aspects:

2.1 think of how to do first, how to start, and then actual hands-on. It can also be said that the first analysis and judgment and then proceed with the repair;

2.2 Secondly, as far as possible, check the previous maintenance records as far as possible.

2.3 In the process of analysis and judgment, judge according to their own knowledge and experience. For those who do not know or understand well, they must consult an experienced colleague or technical support engineer for help.

3. Most queuing machine failures must be judged by the principle of “soft first and then hard”, that is, the whole process of maintenance judgment. It is necessary to first determine whether it is a software-induced fault phenomenon. First check the software is normal. If the failure cannot be resolved at that time, judge. For hardware failure.

4. During the maintenance process, it is necessary to distinguish between primary and secondary fault phenomena. Sometimes it may be seen that there is more than one fault phenomenon at the same time in the queuing machine, or a variety of fault phenomena occur at the same time, (eg: Can not call, voice, etc.) At this time, we should first determine the main fault repair, repair and then repair the secondary fault phenomenon, sometimes at this time the minor fault has no maintenance.

Second, the basic method of maintenance

Observation method observation method is the first important method in maintenance judgment. It runs through the entire maintenance process. Observing not only must be serious, but also comprehensive.

The observations include:

1.1 The surrounding environment;

1.2 Hardware Environment (Including Power Outlets, Terminals, etc.)

1.3 Software Environment (including other application software)

1.4 User operating habits and processes 2. The minimum system method The minimum system refers to the queuing system running the most basic hardware environment and software environment from the perspective of maintenance judgment. There are two minimum environments.

2.1 hardware minimum system is by the number of machines, communications controller, a window of the pager, voice system;

2.2 The software minimum system is the main program and voice program on the machine;

The minimum system troubleshooting method is mainly to determine that in the most basic software and hardware environment, several types of equipment are collected around the number picking machine to build the smallest and smallest system environment and see if the system can operate normally. Plays fault isolation of lines or hardware devices.

The combination of the minimum system method and the queuing division method can quickly locate the cause of the failure and improve the maintenance rate.

3, investigation add / remove method 3.1 investigation add method, is based on the minimum system, each time only add a device to the queuing system to check whether the phenomenon of failure disappears or continue to determine the location of the fault;

3.2 The operation of the removal method is just the opposite of the additive method. They are mainly matched with the replacement method to determine the fault location more accurately;

4. The isolation method is a method of shielding the device that may obstruct the failure judgment, and is a method for separating the suspected software hard to determine whether the failure has changed.

5. Replacement method Replacement method is a kind of maintenance method that replaces a good device with a suspected device to judge whether the fault phenomenon disappears. Be sure to use the same type of hardware device for testing.

6. The tapping method is generally used when a suspicion of a fault in a pager or a window screen is used to cause the device to be vibrated or distorted so as to reproduce the fault, thereby determining a maintenance method of the fault cause.

7. Fixed Suggestions Some of the faults are mainly caused by loose data cable connectors or power connectors. After troubleshooting, you should thoroughly solve the faults and fix some connectors to prevent the occurrence of similar faults.

8. Cleaning It is recommended to clean the touch screen machine regularly, such as the paper inlet of the thermal printer, CPU fan, socket, and slot, etc. Wipe with alcohol. If there is any oxidation phenomenon, use a metal plate to gently scrape.

Ash should the device with a dry brush ash, hair dryer can also be carried out ash, non-cleaned with a metal tool to operate

three if necessary, must be powered down completely, queuing Repair steps
1. Understand the situation Before and during the service, communicate with the user and understand the current situation after the failure, and make a preliminary judgment. If we can understand the detailed fault phenomenon as much as possible, the on-site maintenance efficiency and judgment accuracy will also be improved. Understand whether the user's needs conflict with the queuing system.

2. Judgment maintenance means judgement and positioning of the observed fault phenomenon, find out the cause of the fault, and carry out the repair process.

3, inspection must be carried out after maintenance, to confirm the failure phenomenon does not appear. Also check whether other queuing machine functions properly.

Fourth, the queuing machine repair operation steps

1. In the process of repairing the queuing machine, the failure shall not be expanded as much as possible;

2. Before the maintenance, you should make a backup of the software and understand the related configuration to prepare for the recovery operation;

3, must fully meet with customers to understand the entire process of customer operations, the failure to enter what kind of operation;

Chapter 2 Common Faults

This section will classify the faults from the start-up to shutdown of the queuing machine. Each type of judgment and positioning process is part of the first part of the “Maintenance Judgment” section. That is, regardless of the method used or the content of the judgment, the two parts are always combined with each other.

The following types of faults are only part of the faults in the queuing machine. Unexplained faults are still being summarized, while Others are not categorized. Therefore, this document can only provide the judgment ideas and methods as summarized. The phenomenon that we do not have will be summarized and summarized in our future work, and we will continue to enrich and improve this document.

First, the touch screen to take the machine built-in PC

Fault 1, fault phenomenon: the touch screen can not start;

1.1 The host can not be powered (if the fan does not turn or stop at a moment), the switch is turned off, and part of the chassis is charged;

1.2 no display boot, boot alarm;

1.3 Self-inspection error or crash;

1.4 Repeatedly restart 2. Possible accessories Mains environment, power supply, main board, CPU, memory, switch and switch wires, reset line or reset button.

3. Judgment Requirements/Sequences 3.1 Environmental Inspection 3.1.1 The computer checks whether the A computer equipment is deformed, discolored, or smells;

B. Ambient, humidity conditions;

C After power-on, check whether the computer device has the phenomenon of distortion, discoloration, and odor.

3.1.2 Check the mains A to see whether the mains voltage is 220V and whether it is stable;

The definition of B electrical connection is correct (that is, the left zero right fire, do not fully use the zero line for the ground, the zero line should not be false or floating;

C. Is there any damage on the power supply line?

D host power line and the line connected to the motherboard, and the slot is solid;

3.1.3 Check whether the internal A power supply of the computer can be normally disconnected, no link, and no virtual link;

B other buttons are normally broken;

C. Is there an open circuit or short circuit in the external telephone line?

Whether the power supply of the D mainframe is connected to the mainboard, and whether the mainframe power supply and other equipment are connected firmly;

3.1.4 Check whether the equipment is installed securely A. Check if there is foreign matter on the connecting part between the computer and the machine, causing a short circuit;

B check the memory installation, must be inserted in order, can be reinstalled on the scene;

3.1.5 phenomenon after power-up A press the power switch or reset button, observe the warning light is normal;

The operation of the B-fan (power supply, CPU, etc.) should not stop without action or stop.

C. Pay attention to whether the running sound of the fan motor is normal or the sound is too loud.

4. Cannot start to the operating system 4.1 Startup phenomenon and solution A Cannot boot to the operating system, check whether the hard disk data cable is connected, and whether the line is externally damaged;

B. Check whether the hard disk power cable is connected, and whether there is any virtual connection is not solid;

C. Check whether the system is infected with viruses or other anti-virus software;

D check if there is a Trojan virus, must use the latest anti-virus software to kill;

E Check whether the hard disk space is insufficient, clear the unwanted junk files, check whether there is abnormal program running in the background of the task manager, and retain the most basic background program to test;

5, LAN failure 5.1 Possible phenomenon 5.1.1 NIC does not work, the indicator shows abnormal;

5.1.2 can PING通 but can not connect to the network, network transmission error;

5.1.3 Network errors and crashes;

5.1.4 Only see yourself;

5.2 Hardware that may be involved include hardware such as network cards, switches (hubs, routers), network cables, and main boards. 5.3 Solutions and Highlights 5.3.1 All Hardware Is Connected and Powered On;

5.3.2 Whether the network cable is connected properly, whether the crystal head and the wire sheath are damaged, and whether the crystal head is oxidized;

5.3.3 If the length of the network cable is too long, the maximum length should not exceed 100 meters;

5.3.4 After the power is on, the network card light is on. If it is off, the device may have problems.

5.3.5 Is there a strong magnetic or strong electrical interference around the switch?

5.3.6 Whether the relevant equipment has odor, change, discoloration;

5.3.7 If PING fails, all the hardware in the network properties can be deleted and re-driven;

5.3.8 whether the machine system has the same virus;

6, audio failures 6.1 possible phenomena 6.1.1 sound is too large or too small;

6.1.2 There is noise in the playing sound, abnormal sound, no occurrence;

6.1.3 abnormal installation of equipment, there is an exclamation mark in the device manager;

6.2 Solution and Key Points 6.2.1 If there is no sound, you can check whether the speaker power is connected and the audio plug is firm. You can connect the amplifier to other computers to see if it can make a sound.

6.2.2 Check whether the audio cable of the power amplifier to the ceiling speaker is connected properly or not.

6.2.3 Check whether the ceiling speakers or other speakers have their own faults;

6.2.4 Does the sound switch turn down in other media software?

6.2.5 check whether the latest version of DirectX is used;

6.2.6 can re-drive the sound card when necessary;

Second, the touch screen to take the number machine fault 1, there is intentional phenomenon 1.1 according to the number of the interface can not take the number;

1.2 Press IX prompt prompt XXX program error;

1.3 prompt invalid button prompt;

1.4 Prompt to connect to the server fails when taking the number;

There is no reflection for a long time when the 1.5 key is pressed, no paper is output;

2. Solution and Procedure 2.1 When ensuring the normal operation of the computer, determine whether the touch screen program corresponds to the main program version.

2.2 Check whether the main program sets the same number of keys, and configure the business segment;

2.3 If it is a background server, check to see if the XP machine is turned off;

2.4 The main program is set to take the machine IP address is correct (such as XP and 2000 systems in the absence of network cable, the system will default to the local IP is 127.0.0.1);

2.5 Check whether the local port has conflicts with other devices.

2.6 Check the system for viruses;

2.7 Whether the touch screen is driven well, set whether the key position is accurate, and whether the port setting is "1" value;

2.8 Whether the thermal printer is working properly (such as: the data line is not connected properly, jamming, etc.);

Third, the pager class failure 1, pager failure phenomenon 1.1 pager display is not displayed;

1.2 pager cannot log in;

1.3 The pager sometimes has no information on the LCD screen;

1.4 There is an ERR error mesغير مجاز مي باشدe when logging in.

1.5 Cannot call the customer number after logging in;

1.6 Some callers in the window are easy to use, and some are not easy to use;

2. The solution shall be divided into two categories: 2.1. The display device of the pager has no display. 2.1.1 The communication controller is powered on, and the caller can also perform the minimum environmental test at the machine.

2.1.2 Is the data line sequence from the communication controller to the counter pager consistent?

2.1.3 The crystal head of the pager data trunk is really good.

2.1.4 Has the caller data trunk broken?

2.1.5 Are all the nodes in the counter connected to the pager broken, and are there any bad three links?

2.1.6 Check whether the pager in the counter is connected by a module, check if the module is connected incorrectly, reversed or short circuited.

2.1.7 Is the data line and crystal head in the counter ready?

2.1.8 Check if the voltage of the data line is normal, 24V;

2.2 pager display can display information 2.2.1 check whether the main program is started successfully, the counter in the counter is configured correctly;

2.2.2 Is the serial port line and communication controller of the access controller connected? Is there any problem with the line?

2.2.3 Whether the serial ports needed to queue are conflicting, and whether the serial port itself is working properly.

2.2.3 What kind of test login is used by the queuing machine can be viewed in the cnfig.ini file to simplify login;

2.2.4 The minimum environment test can be used to determine whether the counter line, node, or other equipment has a fault;

2.2.5 Check whether the pager address is set correctly and conflict with other windows on the counter.

2.2.6 Check whether the pager address code is loose;

2.2.7 Is there anything in the pager RJ45 interface, or the interface is damaged;

2.2.8 Is the communication controller chip program version correct and the communication controller working properly?

2.2.9 Check with the company's engineering department whether the pager chip version is correct;

2.2.10 If there is an evaluation device, all evaluation devices and communication controllers should be disconnected from the test;

Fourth, LED

Window screen type fault 1, window screen fault phenomenon 1.1 display without any information display;

1.2 display screen, without any normal display;

1.3 Display does not display call information;

1.4 The display shows that the call number information appears, "Please call NNN number" and other information prompts;

1.5 The display is always blinking abnormally;

1.6 If half of the eight-character display shows no information;

2, the solution should be divided into two categories 2.1 display no display class 2.1.1 to see whether the 220V power supply, such as tripping to see if there is a short circuit;

2.1.2 Check whether the power cable in the display is disconnected or invisible.

2.2.3 Check whether the data line of the display card and the screen in the display screen is connected properly and whether the line is damaged;

2.2.4 Check whether there is a problem with the "inverter" in the power supply on the screen.

2.2 The display screen can display information 2.2.1 Whether the main program is open, whether the current pager can log in the call;

2.2.2 Is there any damage to the data trunk of the display to the communication controller? Are the two break sequences consistent?

2.2.3 Whether the crystal head of the display data trunk is compacted and whether the interface with the equipment is not true;

2.2.4 Use the pager to test at the end of the window screen to check whether the data is normal. 2.2.5 Check whether the address code switch of the window display is loose and whether the address code is wrongly dialed;

2.2.6 Does the display screen reflect when transmitting screens, and can send data once again to the screen?

2.2.7 The data flat cable in the display screen is connected properly, and the display card RJ45 seat is connected with the crystal head;

2.2.8 can replace the display card or the 487 chip on the display card for testing;

Fifth, sound failure

1, sound failure phenomenon 1.1 call without voice prompts but the main program shows that the connection is successful;

1.2 The voice device cannot be found on the main program;

1.3 The speed of speech is very slow when calling;

1.4 The sound quality of the call is very poor;

The 1.5 amplifiers do not produce sounds. There are no problems with other headsets testing the machine and software settings.

2, to solve this problem should be divided into two categories for troubleshooting 2.1 hardware failure 2.1.1 to see if the system is working properly;

2.1.2 Check whether the sound card is driven and whether there is an address conflict with other devices.

2.1.3 Check whether the audio cable is correctly connected 2.1.4 Check whether the power amplifier is powered on, and whether the connection of the audio cable is firm;

2.1.5 Check whether the indication switch on the power amplifier panel is consistent with the setting of the connected audio cable.

2.1.6 Check whether the audio head between the amplifier and the speaker is connected properly, whether the line appearance is damaged, or the wire of the audio line, etc.;

2.1.7 If the sound quality is not good, check whether the audio cable is damaged. Is the connector exposed with copper wire and if there is strong interference in the surrounding area?

2.2. Software failures 2.2.1 Check whether the system is infected with the virus now, use the latest antivirus software to kill it;

2.2.2 Whether the voice device settings in the main program are correct and whether it is selected as a virtual device;

2.2.3 The IP address specified by the voice device is the actual IP address of the local computer (Note: When the network cable is not connected, the system will default to the current IP address of 127.0.0.1).

2.2.4 In the advanced settings, whether there is a voice service in the counter setting;

2.2.5 The version of speech software matches the main program;

2.2.6 Is there a missing audio file path in the voice system? Is there no audio file in the folder?

2.2.7 You can view the QSOUND database file in the virtual voice software installation directory to check whether the correct voice parameter configuration is set for each counter.

2.2.8 If the voice becomes slower and slower, an independent sound card can be added.

2.2.9 In the case of a machine system that does not shut down for a long period of time, voice may become slower and slower.

2.2.10 The sound quality that is sometimes played is mostly related to the quality of the amplifier and the sound card itself;

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