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With the development of society and economy, people's pursuit of home quality is also getting higher and higher, and the demand for smart homes is also getting stronger. A number of favorable factors have promoted the development of the smart home industry, and the number of smart home appliances has seen a growth in blowout. In the face of the future 100 billion class network connection, NB-IoT will become the biggest hot spot in the current era. It will bring wide coverage, large connectivity, low power consumption and low غير مجاز مي باشدt network solutions to the Internet of Things.

Recently, Haier released the NB-UHomekit, the industry's first NB-IoT solution, covering all the technical standard specifications from the bottom layer to the upper layer services, providing the industry with the most comprehensive NB-IoT smart home standard system. Under this system, Haier has an open attitude to allow chips, modules, equipment manufacturers, and operators to have the opportunity to participate in depth, and jointly promote the deep integration of NB-IoT and smart home, forming a new ecological and new business model.

As a leader in the smart life industry in the Internet of Things era, Haier explores and transforms from customers to users to the community step by step. It is not difficult to find out the development context. Haier Group is in the “One-on-One” Driven by the exploration of business models, the company has made a series of revolutionary breakthroughs in the future of home appliances, smart homes, and the Internet of Things. In 2014, Haier launched the world’s first fully open, fully compatible, fully interactive, open platform for smart living, the U+ platform. Based on the U+ IOT platform, U+ interactive platform, and U+ ecological platform, the company aims to lead the smart home in the Internet of Things era. It always focuses on user needs. It faithfully interactively precipitates user communities, actively promotes the home network, and communicates with others. Interacting with the entrance, creating a win-win situation of open platform, product and ecological service combined scene business model, to provide users with kitchen food, bathroom care, living, placement, entertainment and other eغير مجاز مي باشدystem services, to create a better experience of smart life scene .

U+ IoT Platform Enabling Enterprise Internet of Things Transformation and Upgrade

Haier U+ has the industry's fastest IoT device access solution. Whether it is U+ platform products or external developer products, U+ interconnects can achieve the fastest access beyond any industry standard.

On June 27 of this year, Haier U+ released the U+ cloud core solution for smart home IoT. As a Haier U+ smart home IoT object cloud solution, including "U + things Lianyun 1x3" and "intelligent family IoT chip", "U + object Lianyun 1x3" as the system software layer, with UHomeOS as the core, set U + cloud Alliance , U+ cloud computing, U + cloud intellectual three major plates; Haier wisdom family IoT chip as the chip hardware layer, covering the two solutions and intelligent solutions solutions; plus Shanghai Seoul U+ cloud core with an open attitude to build developers The community provides enterprise-level users with ecological resource services such as content, technology, and funds. Haier Cloud core integrates hardware, software, and eغير مجاز مي باشدystem services through hardware and software integration solutions to integrate all resources and help Traditional enterprises quickly complete market access and achieve manufacturing upgrades. U+ Cloud core leads the industry through its five-fold object protection, short access cycle, fast product development, and tailored advantages. It empowers the manufacturing industry and small and medium-sized start-up companies to facilitate the upgrade and transformation of the Internet of Things and the rapid marketization of products. Build U+ Wisdom Ecology to create the best eco-environmental experience in the smart life cycle and realize the promotion and application of the Wi-Fi smart home scale.

U+ interactive platform leads the era of intelligent interactive full scene

On November 24, 2016, Haier launched the first UHomeOS, an eغير مجاز مي باشدystem operating system tailored specifically for smart homes in the era of the Internet of Things, and realized the "zero breakthrough" of smart home operating systems in the era of the Internet of Things, becoming the world's first smart home operating system. , To provide users with a unified experience, intelligent home appliances through the realization of the family life of intelligent services, fundamentally realize the user's smart life scene detonated. Haier UHomeOS is open. Focusing on the core industries of Haier's smart home appliances, resource sources from all directions in the industry have access to smart home devices through the UHomeOS system to achieve industry-wide information exchange and data sharing. Data from all parties can be fully compatible, and islands of information can be fully integrated. This breaks. The aggregation of big data allows home appliances to better absorb and understand user needs. Each resource partner will work together to provide users with precise services and create a smart home eغير مجاز مي باشدystem that meets the value of users. For the entire industry, UHomeOS has completely overturned the business model of the traditional home appliance industry and promoted the transformation of new home appliances from "hardware manufacturing" to "hardware + software + services."

In March of this year, at the China Household Electrical Appliances and Consumer Electronics Expo (AWE), home to the “Oscar” of the home appliance industry, Haier released the world’s first set of interconnected smart home appliances and the first in the world to present the first batch of 161 life scenarios. Smart homes have opened the era of full-scene intelligent interaction.

U+ ecological platform and industry resources increase in value

Haier U+ focuses on the ecological platform strategy, continuously enriches and enhances its capabilities, empowers small and micro organizations, and promotes the ecological prosperity and value-added of the scene. Build a smart scene ecology, attract more partners to join, and realize sustainable and collaborative eغير مجاز مي باشدystem value-added. Openness that can truly realize mutual benefit sharing is a prerequisite for empowerment. Haier U+ builds an ecological resource platform that is open and led by the smart home industry, empowers enterprises, and provides specific products and services for non-intelligent hardware manufacturers and small and medium-sized startups, covering the connection layer, The development layer and application layer enable enterprises to implement one-stop access to the Internet of Things and achieve intelligent product upgrades, and design scenario linkage solutions. For Xiaowei, Haier U+ smart eغير مجاز مي باشدystem small-and-different resources are introduced at one time, access to resources is fast, and access غير مجاز مي باشدts are low. With regard to resource-based parties, high-efficiency access to the smart home industry accelerates brand communication and increases resource revenue. For users, Through the one-stop closed-loop smart home ecological resource service of Haier ecological resource platform, the user's life is more convenient, the sense of experience is enhanced, and the user is provided with the best smart living experience. For Xiaowei, Haier U+ smart eغير مجاز مي باشدystem small-and-small content resources are introduced once, access to resources is quick, access غير مجاز مي باشدts are low, and resources are accessed; resource-based, high-efficiency access to the smart home industry accelerates brand communication and increases resource revenues. For users, through the one-stop closed-loop smart home ecological resource service of the Haier ecological resource platform, the user's life is more convenient, the sense of experience is enhanced, and the user is provided with the best smart living experience. In the future, various resources will be freely combined around the needs of users on an open platform, so as to meet the most differentiated needs of users.

For Haier’s smart family exploration, an open ecological platform strategy is an inevitable and natural way. In an open environment, relying on the innovative capabilities and technical support of the U+ platform, Haier has become a leader in the smart home industry in the era of the Internet of Things. Haier constantly builds and enriches the ecology of smart scenes, synergies with industry resources, and builds the eغير مجاز مي باشدystem of the smart home industry of the Internet of Things. It leads the future of the Internet of Things and empowers the smart home industry to become an industry benchmark.

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The video surveillance system of the existing ports in China is mainly composed of cameras, optical cables, matrixes, hard disk recorders, and video walls. Due to the large number of video surveillance images and boring contents, the existing systems, even with on-duty personnel, are still in an unattended state in most cases.

When a crime incident occurs, the retrieval of video playback and forensics from the DVR becomes one of the major values ​​of the system. Even if on-duty personnel are on duty, due to the physiological characteristics of human beings, it is impossible to effectively observe multi-channel images for a long time, which may result in the omission of suspicious events and misjudgment of safety forms.

Intelligent video surveillance technology can be understood as using a computer to help watch people watch video surveillance. The high reliability of modern computers can provide 24-hour protection. Fundamentally eliminate the omissions caused by fatigue. At the same time, it is also possible to prevent the possibility of colluding inside and outside the monitoring staff.

The existing intelligent video analysis technology cannot replace people. It still needs people to recognize the nature of the alarm and decide the disposal method. Its value lies in greatly reducing the intensity of the monitoring personnel's work and making the quality of monitoring a qualitative improvement. Compared with traditional video surveillance systems, intelligent video analytics can detect or even prevent crimes from occurring. The significance of this sensitive and critical infrastructure such as the port is obvious.

The function of intelligent video analysis technology and its application in ports

The demand for video surveillance systems in domestic ports is mainly due to the need for theft prevention, production safety, and anti-terrorism. The valuable materials in the port and the surveillance of key departments are typical application scenarios.

Since China signed the Sonus Convention, all ports exported to the United States must meet certain security standards. At the same time, as an important part of the national economy, the port’s anti-terrorism has also been incorporated into the agenda by major domestic ports.

The main function

Currently, intelligent video analysis systems on the market generally have the following functions:

1, image acquisition / interface. The vast majority of intelligent video analysis algorithms are based on non-compressed image formats such as RGB or YUV, so image signals are sent directly to the video analysis unit without being compressed after being captured. Almost all video analysis systems are equipped with an image capture function, usually through the BNC input analog image signal. The image signal in the existing image monitoring system usually exists in the form of a compressed image stream, and the image stream can be decompressed and restored to the original image format before analysis.

2, moving object detection. In simple terms, motion detection is the discovery of moving objects in an image. Moving objects can simply be defined as changing parts of an image. Some elementary motion detection algorithms are based on these concepts. The false alarm rate of such methods is too high to be suitable for real-time alarm systems.

Not all changes in the image are moving objects that we are interested in. For example, changes introduced by the camera itself include pixel noise, overall brightness changes caused by the camera's auto iris control circuit, and high- and low-frequency periodic noise signals introduced in image transmission. , mutations caused by infrared camera cycle calibration. Changes introduced by the external environment include rapid changes in the ground light in cloudy weather, shadows of moving objects, waves or sparkling phenomena on the water surface, swinging of branches on land, halo caused by headlights at night, and rain and snow weather.

In addition, the camera shakes easily on windy days, especially high light poles. The image changes caused by these phenomena should be filtered out. They can be solved by algorithms or other technical means.

Home Previous Next Last From the point of view of the algorithm, it can be simply divided into two categories. One is to establish a background model and find the moving object by comparing it with the background model. The other type is to find moving objects through the optical flow method by finding the effect of moving objects on the optical flow field. The other is a method that combines the two or a combination of the two.

3, multi-object tracking. Tracing is essentially stringing together the same objects found on each frame in chronological order. This area itself is a relatively independent and active research area. The main research direction is to effectively track under complex circumstances such as multiple moving objects, multiple cameras, moving objects blocking each other, disappearing and recurring.

In practical monitoring applications, especially for some intrusion alarm application cases, the requirements for tracking algorithms are relatively low. The existing system does not have satisfactory tracking effects on moving objects and other complex application scenes. However, with reference to the pace of technological development in the past, this aspect will soon be perfected.

4, behavioral characteristics analysis. The behavioral feature analysis is to look for an event that meets a predetermined behavioral characteristic from the image. Typical applications on the market today include:

(1) Classification. Judging that the moving objects are people, cars, boats, airplanes. Stop or abruptly accelerate, such as when a vehicle is anchored in a tunnel or on a highway, a scene of a robbery on the street, and a chance to escape.

(2) Hey. Persons who are observed outside the sensitive area. Pedestrians and vehicles that pass normally are not alerted.

(3) Leftovers. Place explosives at airports, oil depots, etc. and leave.

(4) The item is missing. If the museum’s valuable exhibits discover the disappearance of exhibits, the system will immediately call the police.

(5) Statistics of the number of people. For example, statistics are made on the number of people entering supermarkets and other places, and the average consumption curve of one day is plotted against sales data.

(6) Population density. Such as when the alarm when the number of personnel is too large, or when the crowd suddenly spread out anomalies occur when the alarm.

(7) The staff fell to the ground. For example, when the staff suddenly changes from straight to flat.

In general, intelligent video analytics can do a lot of things and require video analytics developers and end users to communicate effectively. As intelligent video analysis is still a relatively new technology, the circle that knows this technology in the country currently only expands to the integrator level. Many application scenarios suitable for video analysis technology have yet to be developed in the market. However, one thing is clear: companies must master core technologies and have independent research and development capabilities. The intelligent video analysis market is composed of many subdivided small markets, and new applications are constantly emerging.

5, set the alarm conditions. The introduction of intelligence in video surveillance has greatly enriched the monitoring content. Currently available alarm elements include areas, time periods, object types, dimensions, direction of movement, speed, behavioral characteristics, and many other things.

6, alarm linkage. After the abnormal situation is found in the intelligent video analysis system, it is usually necessary to verify the authenticity of the alarm, such as detailed investigation of the close of the alarm event by another PTZ camera, or promptly notify and remind the monitoring personnel. Common real-time prompt methods include voice, pop-up images, sending text mesغير مجاز مي باشدes, screenshots and other means to prompt monitoring personnel.

Special function intelligent video analysis can also solve the special needs of the port

Especially in the area of ​​safety production. For example, in the illegal parking of container yard roads, the container trucks are not allowed to park under the bridge cranes, and the coal yard is burning spontaneously. Since intelligent video analytics technology itself can be applied to many fields, communication between ports and video analytics companies can bring many new problems to the port.

Special problems encountered

Compared with other smart video analysis application scenarios (eg, prisons, power plants, banks, vital organs, etc.), the port project has the following difficulties that require attention:

1, a large range

The perimeter of the port is usually a few kilometers or more. It is usually relatively empty. The available installation points do not necessarily meet the requirements of a typical intelligent video analysis system. This is mainly due to the fact that the typical detection distance of existing products is usually in the range of tens of meters, and individual manufacturers can do farther. Technically, it is mainly the conflict between resolution and processing power. If the resolution is too high, some low-end systems cannot process such a large amount of image data in real-time due to the increase in the amount of data. For the port, analysis using D1 (704 times 576) images is often encountered.

2, camera shake

Since the port is usually open and faces the sea or river, camera shake is certain. Even if the camera is fixed on a very thick lamp pole, shaking cannot be avoided on a windy day. For a fixed camera using the background model method, camera shake must be effectively compensated before it can be used, otherwise a large number of false alarms will be generated.

3, surface waves, reflective

The above technical difficulties are solved in some existing commercial systems. Therefore, when selecting the system, you must identify it.

When monitoring the waters of a dock, such as intrusion of a small raft, if it does not properly handle the sparkling phenomenon caused by water wave and sun reflection, it will cause a large number of false alarms.

Technology development trend

Intelligent video analytics is at an early stage both in terms of technology and market maturity. Some new products and new features continue to emerge. In general, foreign countries have a wider range of applications than the domestic market; there are fewer domestic independent R&D manufacturers and more manufacturers integrate foreign systems. In the long run, the development of video surveillance systems in the direction of intelligence is increasingly being recognized by government agencies, integrators, and end users. How to choose the time to enter the market, and to use intelligent video analysis technology to improve the port security level, and then to improve the owner satisfaction and find a mature technology to achieve a balance between the port security department needs to consider their own situation.

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Aluminum

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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.

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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.

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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.

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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.

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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.

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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.   

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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

Steel Hoarding

Steel Hoarding Panel,Steel Hoarding ,Temporary Fence

Baina Wire Mesh Manufacture Co., Ltd. , http://www.bdaviarymesh.com

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"

LED Tractor Lights

LED Tractor Lights,LED Tractor Spot Light,Blue LED Tractor Lights

Hongzhun Lighting Factory , http://www.gdflashlights.com