Pay attention to the suitability of choosing ppe

The access control system should have a high degree of stability, choose an open hardware platform, support multiple communication methods, lay a solid foundation for interconnection and system integration between devices, and also have standardized and modular components to ensure great Flexibility and scalability.

Access control intercom system lightning protection

The outdoor door of the building is more likely to be struck by lightning, causing great inconvenience to the user and also causing great economic losses. Through the investigation and analysis of the causes of these lightning strikes, the main components of the crash are the power box, circuit board, and talker.

First, the main route to lightning strikes

(1) Directly hit mine. Direct lightning strikes the lightning directly on the object. The thundercloud near the ground induces an opposite charge on the protrusion. When the electric field strength between the thundercloud and the ground protrusion reaches the air breakdown strength, it will strike. Wear discharge, this type of thundercloud directly puncture discharge on the ground protrusion is called direct lightning. High buildings and their sides are subject to direct lightning strikes, and direct lightning strikes on the side of a building can be called side impact mines.

(2) Induction of thunder. Lightning strikes a conductor, such as a metal object next to the device, and indirectly strikes the object. Lightning induction is divided into electrostatic induction and electromagnetic induction. The formation of electrostatic induction is due to the induction of a large number of opposite charges on the top of ground projections when the cloud approaches the ground. When the thundercloud and other thunderclouds or other objects are discharged, the accumulated charge on the top of the protrusion suddenly loses its bondage, showing a high voltage and rapidly propagating in the form of lightning waves. The formation of electromagnetic induction is due to direct lightning currents that produce a rapidly changing strong magnetic field in the surrounding space, which induces high voltages in nearby metals. Induction mines are not as violent as thunder but they are much more likely to occur than direct thunder. Because direct lightning strikes only when lightning strikes the ground, it will cause disasters to the ground. Induction lightning, however, strikes lightning regardless of the lightning strikes on the ground, or lightning strikes between thunderclouds may occur and cause disasters. A lightning stroke can occur in a relatively large range and multiple small parts at the same time, and this induced high voltage can be transmitted far through the signal wires, power lines, telephone lines and other metal wires, resulting in lightning The scope has expanded.

Second, access control intercom system lightning installation

The following measures should be taken to prevent the above major lightning strikes:

1. The installation position of the power box should be properly selected.

(1) Avoid installing on the side wall of the house, especially on the side wall of the projected house, so as to prevent direct lightning strikes.

(2) Avoid installation on the side of a pipe where there is a metal pipe, a gas pipe, etc. Especially, the same side wall that is less than 5 meters from the metal pipe and the air pipe can not be installed.

2. Both the power box and the circuit board should be grounded. The grounding wire should be solid and reliable, and the grounding resistance should be ≤ 0.1Ω.

3, wiring should be correct and reasonable. Power lines and signal lines should be placed indoors to avoid outdoor wiring as much as possible, avoiding the same direction and cross wiring as metal pipes, air pipes, etc., and it is impossible to avoid wiring in the same direction as metal pipes, gas pipes, etc. The distance between the two should be ≥ 5 meters. . The wiring should be laid in a straight line to minimize bending wiring.

4. The power source of the power box should be connected to the power socket. When weather is prevented or weather changes may cause lightning, it is convenient to cut off the power in time to prevent lightning strikes.

Access control intercom purchase eight points one, strong stability

"Stable" is the first choice for the selection of access control systems. It should consider the mature products that are in the leading position in the world as far as possible, pass a number of authoritative certifications, and have many typical users. It has been operating for many years and has been highly recognized in the industry.

In terms of hardware, devices from the controller to the terminal are mature and stable products. As the core of the system, the access controller needs to support the offline mode of operation. It must use flash and other non-volatile memory chips, and the power loss or impact information will not be lost. Failure of the server and terminal to identify equipment does not affect the normal operation of the system. As the management software supported by the system, it should have a stable and reasonable database structure design. Between the hardware and the real-time polling method, the communication connection and address of the hardware should be maintained and monitored. Complete data integrity, reliability, consistency.

Second, extremely strong anti-destructive ability

Access control systems are used to protect people and property, so the system itself must be safe. The high security mentioned here refers to the natural or quasi-natural properties of the product or system. It should ensure the safety of the equipment and system operation and the safety of the operator. For example, the equipment and the system must be able to withstand high temperatures and low temperatures. Hot and humid, and can prevent static electricity, anti-jamming, etc.; on the other hand, access control and security systems should also have anti-human damage features, such as: with tamper alarm.

Third, excellent compatibility

To facilitate future upgrades, capacity expansion, and anti-jamming considerations, it is recommended that terminal identification devices comply with international standards be selected, and that the wider and better the compatibility, the better. Some formats have some advantages in terms of locality, but they do not conform to international standards. They will cause problems for future upgrades, capacity expansion, and anti-jamming. They should adhere to the principle of “practicality, stability, and compliance with standards”.

Fourth, flexible scalability and economy

It is suggested that the number of registered card rights need to reach 30,000, which can be suitable for the vast majority of customers on the storage capacity requirements, facilitate the attendance statistics and business scale expansion. The main equipments should adopt modular design and adopt advanced wiring methods. Through software and hardware upgrades, future system expansions can be achieved without having to make major changes to the system, maximizing the economical principle, and at the same time, products should be غير مجاز مي باشدt-effective.

Fifth, powerful software management functions

With the increasingly wide range of applications for access control systems, it is required to implement linkage control functions with other systems such as attendance management, security alarm, parking lot control, elevator control, consumption management, CCTV linkage, and online patrol. Therefore, the system software should have video Interfaces and support for extended functionality.

Six, easy to maintain
The system should be easy to install and configure, simple and popular, and have a unified network management capabilities, easy to maintain.

VII. Purchase of mature brand products at designated agents
A mature brand can guarantee a perfect and powerful service system. This includes two aspects: First, technical support and thoughtful after-sales service for the project; second, reliable follow-up research and development capabilities to ensure continuity and compatibility of new and old products.

Buying from agents can have reliable quality and perfect services. Buying from other channels may have lower prices, but technical support and after-sales service may not be enough.

Eight, product appearance

With the improvement of people's aesthetic standards, while pursuing function and practicality, one can use its design as one of the reference standards in order to realize additional functions of visual enjoyment.

Custom Design Slewing Bearing

Inner Gear Ring,Thrust Roller Bearing,Slewing Bearing For Crane

Slewing Bearing Co.,Ltd.  , http://www.slewingring-bearings.com

                    Product Description

1.Suitable for all kinds of plastic raw materials and color powder or granules
2.Fully stainless steel or iron contacting parts, rust free and easy to clean Installed with power control device to ensure safety.
3.Customizable for drying type model.

WITH HEATING

Recycling Line

Pet Bottle Recycling Line,Ldpe Film Washing Line,Bottle Recycling Machine

Lanhang Machinery Co., Ltd. , http://www.rh-plasticgranulator.com

Tiger Skull - Overview

Ancient name: Tripterygium "Compendium of Compendium of Materia Medica". Tigers

Tigers

Alias: Big cat licking.

Botanical name: bar plate return.

Growth environment: This product is a loose or relief-like vegetation. Born on the edge of the village, hillside, river, stream, and bushes, *** is more hiy.

Distribution: There are distributions in all parts of Guangdong and southern provinces in China.

Medication part: whole grass.

Collection period: summer and autumn.

Location: Hill.

Taste: cool, sour.

Function: heat.

Standard Padlock

Pad lock,Aluminium Alloy Lock,with Vane Keys

Hi-Stay Trading Co., Ltd. , http://www.szprotection.com

In recent years, video conferencing has become the first choice for business conferences due to its great advantages in network communications, and it has rapidly become popular among enterprises. Not only that, videoconferencing is rapidly merging with popular applications such as 3G, Internet of Things, and cloud computing, and its applications have become more extensive and deeper.

Video conferencing opens up a wider range of applications in the future
With the continuous development of technology, software video conferencing has broken through bottlenecks such as network bandwidth, interconnectivity, and stability, and quickly replaced hardware videoconferencing in a more stable, flexible, fast, and convenient manner, becoming the mainstream application in the industry. It is software video conferencing that has the advantages of easy deployment, easy maintenance, and high غير مجاز مي باشدt performance. This has led many SMEs to deploy video conferencing, which greatly expands the scope of video conferencing applications.

What is even more gratifying is that under the impetus of leading video conferencing manufacturers, high-definition, hi-fidelity, and removable software video conferencing have become a reality. The first full HD video conferencing system in China, Seegle Video Conference 2010 is For example, by adopting the concept of cloud computing and using the latest H.264 video codec technology, full-HD images with a resolution of 1080×1920 can be achieved. With excellent fault tolerance and transmission capabilities, higher quality at lower bandwidths can be achieved. Picture transmission, so that high-definition video conferencing is no longer a bandwidth killer.

In addition, the system can achieve audio and video effects that are indistinguishable from real soundtracks and steadily improve the effects of the conference. The system supports 3G networks, and can be quickly connected to conferences in many ways such as laptops and mobile phones, enabling many ordinary enterprises to enjoy high-definition video. Video conferencing brings the best conferencing experience.

With the help of software video conference systems such as Seegle Video Conference 2010, the application scope of video conferencing is no longer confined to the conference rooms of government agencies and large enterprises, but will be fully deployed in IT, power, and operators. In the fields of finance, transportation, education, and medical care, 40 million SMEs in China can also enjoy the efficiency gains of deploying videoconferencing.

Deeper application depth

With the development of videoconferencing so far, user needs are constantly changing. Videoconferencing is no longer just an exclusive tool for conferences, but it is becoming an integrated information system integrating collaboration, office, management, and storage, and is gradually becoming an enterprise informatization. The core part of communication will be implemented in all aspects of social activities, such as remote management, office collaboration, bidding, business negotiation, interview recruitment, education and training.

The in-depth application also puts a great test on videoconferencing vendors, requiring that they must have an accurate understanding of the user during the product requirements analysis phase, and must be able to achieve these requirements in the subsequent development process. In this regard, the Seegle videoconferencing system 2010 performed particularly well. From the early stage, it accurately grasped the needs of users, and assembled the strongest R&D team in the industry. All designs were based on the user's point of view. All designs were rigorously tested to ensure the products. Advanced, easy to use, and operability. The system supports only video display modes that can be set up, can support 10,000-person large-scale conferences, integrates the most advanced electronic whiteboard functions in the industry, and includes many conference support functions such as fully optimized file sharing, conference voting, etc. It can also meet the special needs of many special industries such as education, medical care, energy, aerospace, building materials, transportation and so on.

In the future, the application of videoconferencing will spread to all walks of life in society and infiltrate all places that need to be communicated. It will eventually become the word of informatization communication.

With the rapid development of society and economy and the improvement of informationization, the information age of educational facilities construction has also come. With the improvement of modern network technologies and the diversified development of education models, distance education has rapidly emerged as an education model that makes full use of network technology and has become one of the most important educational models.

The promotion of modern education and the rise of distance education are inevitable

Curing the current imbalance in the distribution of educational resources, distance education is the main force of science and technology is the social development and progress, and the essence of science and technology is the education. However, the current level of education in our country is not optimistic. Due to the vast territory and large population in China, the education level has obvious local limitations. For some remote areas, because of the occlusion of the environment, information exchange is not timely, and the level of education is quite backward. Therefore, the communication learning that overcomes the obstacles in the space area becomes the best choice.

The traditional measures of the aid education model usually take measures to organize teachers to go out for lectures or advanced teachers to carry out regular education, but this cannot solve the problem fundamentally. Organize teachers to go out to study, and then teach the students to perform the second conversion. Due to the subjective nature of the individual, it has been compromised to a certain extent. Regular support is also a drop-in, which does not enhance the comprehensive education concept. Through remote classrooms, students can go beyond the space constraints and bring students from different regions together in a classroom. Students can receive direct education, conduct classroom exchanges, and achieve real educational communication.

Increased social competition, distance education is the first choice for “charging”

With the rapid development of society and the acceleration of the pace of life, “living to the old to learn old” is no longer a self-disciplined spiritual realm, but a capital that is based on society. In order to be invincible in the fierce social competition, "charging" has become part of the lives of many incumbents.

For the office workers who work first and their time is tight, the traditional school education model is obviously not suitable. This is also the important reason for the rapid popularity of online classrooms in adult education. By accepting online education, people can arbitrarily choose the learning courses they need without considering space constraints. Based on the recording and broadcasting capabilities of remote video conferences, they can also reproduce the missed courses and effectively solve the time constraints. It saves time and effort, is flexible and free, and it caters to the ever-accelerating pace of life.

The prestigious school effect is increasing day by day and distance education effectively reduces stress

Decompression increases the pressure of competition in society. Preventing children from losing on the starting line has become the creed of choice for many parents. In order to squeeze into the threshold of elite schools, education spending has become the main economic burden for many families. According to relevant surveys, children’s education expenditure has already topped household’s daily expenses. The ever-increasing expenditure on education has made the emerging online classrooms quickly gaining attention.

Through online classes, students can not only effectively solve school choice problems, save education expenditure, but also help students develop their self-study ability. With the advent of information society, learning society and the era of knowledge economy, education is undergoing profound changes. Learning to learn by students has become a recognized goal in education. The model of separating students from teachers used in distance education will provide students with enough space for self-learning and fully explore their potential for self-study.

Solenoid Coil 15 to 15.9mm

Bomag Solenoid Coil,Electric Motor Coil,Solenoid Inductor Coil,Dirt Bike Ignition Coil

Brando Hardware Co., Ltd. , http://www.nbbrandohydraulic.com

Product Name Specification Material Steel/Origin Price (Yuan/Ton) Than Yesterday Last Week, General Line Φ6.5/8mm Q235 Handan Steel 4900 0 -50 450 High Line Φ6.5/8mm Q235 Handan Steel 5000 20 0 500 High Line Φ6.5/8mm Q235 New Gold 5000 20 50 500 High Line Φ6.5mm Q235 Licheng Taihang 4950 0 10 430 Rebar Φ12mm HRB335 Handan Steel 5130 0 -20 430 Rebar Φ12mm HRB335 Emerging Cast Pipe 5130 0 -20 430 Rebar Φ16-25mm HRB335 Handan 4900 0 -50 350 Rebar Φ16-25mm HRB335 Emerging Cast Pipe 4900 -30 -100 350 Rebar Φ16-28mm HRB335 Licheng Taihang 5100 0 50 430 Plate Screw Φ10mm HRB400 Licheng Taihang 4850 0 0 170 Hot rolled coil 1.8*1250*C Q235 Handan Steel 5820 10 -40 400 Hot rolled coil 2.0*1500*C Q235 Handan Steel 5700 30 -20 500 Hot rolled coil 2.5*1500*C Q235 Handan Steel 5400 - 70 - 120 460 Hot rolled coil 2.75*1500*C Q235 Handan Steel 5400 20 -30 540 Hot rolled coil 3.0*1500*C Q235 Handan Steel 5250 0 -100 470 Hot rolled coil 4.0-4.75*1500*C Q235 Handan Steel 5250 0 -100 570 Hot rolled coil 5.0-6.0*1500*C Q235 Handan Steel 5250 0 -100 570 Hot rolled coil 7.2-9.8*1500*C Q235 Handan Steel 5280 0 -100 600 Hot rolled coil 4.5 -10.0*1500*C Q235 Tiantie 523 0 -20 -120 580 Puzhong Plate 8.0mm Q235 Sky Steel, Handan Iron and Steel 6320 0 -180 730 Puzhong Plate 10.0mm Q235 Sky Steel, Handan Steel 6120 0 -180 740 Puzhong Plate 12.0mm Q235 Handan Steel 5890 0 -110 700 Puzhong board 14-25mm Q235 Handan steel 5830 0 -120 750 Puzhong board 14-25mm Q235 Wenfeng 5770 0 -130 770 Puzhong board 14-25mm Q235 Puyang 5800 0 -120 750 Puzhong board 14-25mm Q235 Yuanbaoshan 5760 0 -120 810 Low Alloy Plate 8mm Q345 Handan Steel 6470 0 -30 760 Angle Steel 50*5/6m Q235 An Steel 5300 0 100 600 Angle Steel 63*6 Q235 Ansteel 5300 0 100 650 Angle Steel 9# Q235 Ansteel 5300 0 100 650 Channel 8# Q235 Ansteel 5250 0 0 550 Channel 12# Q235 Handan Steel 5150 0 50 600 Channel Steel 20#/8m Q235 Jiangtian 5350 0 100 700 I-beam 12# Q235 Haicheng 5200 0 0 800 Steel 25b# Q235 Laiwu Steel 5400 0 50 700 I-beam 32# Q235 Laiwu Steel 5400 0 50 700 Hot-rolled strip 3.5mm and above *735*C Q235 Vertical and horizontal 4980 0 -20 480 Hot-rolled strip 5.5mm*685* C Q235 Vertical and horizontal 4980 0 -20 480 Hot-rolled strip 3.0mm*(685-735)*C Q195 Vertical and horizontal 5030 0 -20 500 Hot-rolled strip 3.5mm*(480-570)*C Q195 Wenfeng 5030 0 - 20 530 hot-rolled strip 3.75mm*520*C Q235 Wenfeng 4980 0 -20 480 hot-rolled strip 3.0mm * (480-570) * C Q235, Feng 49800-20450

Glow Plug

U & C Auto Parts Co., Ltd. , http://www.njradiator.com

I often see questions from users on some parking system forums and industry websites, saying that the parking system does not monitor images when it is operating. That is, the monitoring window is displayed as a fixed image, like a card screen. In fact, this is one of the common faults in the parking management system, which will cause some troubles in the management of the parking lot.

So how do you do when there is no monitoring image when the parking system is operating? There are two common reasons:

1. The software setting of the parking lot system is not appropriate. The general solution is to reset the relevant parameters of the video card in the “parking area setting” of the parking lot management system interface. For example, the correct selection of the video card model, in the parameter options of the lane, the image contrast in this item "Whether to monitor" must be selected;

2. The driver of the video capture card in the parking lot system is not installed correctly or not installed. The general solution is to right click on "My Computer", select "Device Manager", and then check if the driver of the video capture card is installed (if there is no installation or installation error, there will be corresponding prompts, such as a yellow question mark ) If it is not installed, then you can go to the manufacturer's website to download the driver for the corresponding product! If it still does not work, then you may suspect that the video capture card is broken. At this time, it is recommended that you send it to a professional for testing and replace it. !

Others

Solenoid Directional Control Valve,Hydraulic Valve,Solenoid Valve

Raypoo Technology Co., Ltd. , http://www.szhydraulicvalves.com

The content of carbohydrates in lettuce is low, while the content of inorganic salts and vitamins is relatively abundant, especially with more niacin. Niacin is an activator of insulin, and people with diabetes often eat lettuce, which improves sugar metabolism. Lettuce also contains a certain amount of trace elements zinc and iron, especially the iron in lettuce is easily absorbed by the body, often eating fresh lettuce, can prevent iron deficiency anemia. The content of potassium in lettuce is abundant, which is 27 times that of sodium salt, which is beneficial to the regulation of salt balance in vivo. For high blood pressure, heart disease and other patients, it has the effect of promoting diuresis, lowering blood pressure, and preventing heart rhythm disorders. Lettuce also has the functions of increasing appetite, stimulating secretion of digestive juice, promoting gastrointestinal motility and the like.

96.4 g per 100 g water content, protein 0.6 g, fat 0.1 g, carbohydrate 1.9 g, crude fiber 0.4 g, calcium 7 mg, phosphorus 31 mg, iron 2 mg, carotene 0.02 mg, thiamine 0.03 mg, nucleus Flavamine 0.02 mg, niacin 0.5 mg.

The content of carbohydrates in lettuce is low, while the content of inorganic salts and vitamins is relatively abundant, especially with more niacin. Niacin is an activator of insulin, and people with diabetes often eat lettuce, which improves sugar metabolism. Lettuce also contains a certain amount of trace elements zinc and iron, especially the iron in lettuce is easily absorbed by the body, often eating fresh lettuce, can prevent iron deficiency anemia. The content of potassium in lettuce is abundant, which is 27 times that of sodium salt, which is beneficial to the regulation of salt balance in vivo. For high blood pressure, heart disease and other patients, it has the effect of promoting diuresis, lowering blood pressure, and preventing heart rhythm disorders. Lettuce also has the functions of increasing appetite, stimulating secretion of digestive juice, promoting gastrointestinal motility and the like. However, if too much or regular consumption of lettuce, because lettuce lettuce compound on the optic nerve stimulation, will occur drowsiness and drowsiness poisoning reaction, leading to night blindness or other eye diseases induced, it is not appropriate to eat. The night blindness and eye diseases caused by eating more lettuce only need to stop eating lettuce and it will be improved in a few days. There are many nutrients in lettuce, including protein, fat, sugar, ash, vitamin A, vitamin B1, vitamin B2, vitamin c, trace elements such as calcium, phosphorus, iron, potassium, magnesium, silicon, and dietary fiber. The development of bones, hair, and skin helps people grow. In recent years, studies have found that lettuce contains an aromatic hydroxylated lipid, which can decompose carcinogenic nitrosamines in foods and prevent the formation of cancer cells. It has a preventive effect on the digestive system of liver cancer and gastric cancer. It can relieve cancer patients' response to radiotherapy or chemotherapy.

Funeral products

Embalming Table,Hospital Equipment,Medical Equipment

Flower Medical Equipment Co., Ltd. , http://www.shmedicalequipment.com

Product Name Specification Material Steel/Origin Price (Yuan/Ton) Than yesterday's previous week High Line Φ6.5mm Q235 Xing Steel 5040 0 -10 560 High Line Φ8/10mm Q235 Haixin 5040 0 -10 560 High Line Φ6 .5mm Q235 Sunshine 5040 0 -10 560 High Line Φ6.5mm Q235 Nangang 5120 0 -30 620 High Line Φ6.5mm Q335 Sha Steel 5120 0 -30 520 High Line Φ8mm Q335 Sha Steel 5100 0 0 500 High Line Φ6.5mm Q335 Yong Steel 5100 0 0 500 High Line Φ8mm Q335 Yong Steel 5100 0 0 500 High Line Φ6.5/8mm Q335 Ma Steel 5100 0 0 480 Rebar Φ10mm HRB335 Sha Steel 5070 0 0 470 Rebar Φ12mm HRB335 Sha Steel 5020 0 0 450 Rebar Φ14mm HRB335 Sand Steel 5000 0 0 450 Rebar Φ16-25mm HRB335 Sand Steel 5000 0 0 450 Rebar Φ10mm HRB335 Yong Steel 5070 0 10 500 Rebar Φ12mm HRB335 Yong Steel 5020 0 0 480 Rebar Φ14mm HRB335 Yong Steel 5000 0 0 470 Rebar Φ16 -25mm HRB335 Yong Steel 4980 0 0 460 Rebar Φ16-25mm HRB335 Ma Steel 5000 0 0 450 Rebar Φ16-25mm HRB335 South Steel 4980 -20 -20 430 Rebar Φ16-25mm HRB335 2672 Plant 4880 -30 -60 430 Thread Steel Φ18-25mm HRB335 Jiangyin up to 4860 -30 -60 410 Rebar Φ16-25mm HRB335 Ann Yang Xinyang 4860 -30 -60 410 Rebar Φ16-25mm HRB335 Shaanxi Longgang 4860 -30 -60 410 Rebar Φ18-25mm HRB335 Haixin 4860 -60 -90 410 Rebar Φ18-25mm HRB335 Ma Changjiang 4880 0 -80 430 Grade III Rebar Φ18-25mm HRB400 Masteel/Yong Steel 5120 0 0 460 Grade III Rebar Φ16mm HRB400 Sha Steel 5130 0 -20 470 Grade III Rebar Φ18-25mm HRB400 Sha Steel 5130 0 -20 470 Grade III Rebar Φ18-25mm HRB400 Pinggang 4900 0 -100 320 Grade III rebar Φ18-25mm HRB400 Nanchang 4900 0 -100 320 Grade III rebar Φ18-25mm HRB400 Rizhao 4900 0 -110 320 Round bar Φ10mm Q235 Yonggang 5090 0 0 420 Round bar Φ12mm Q235 Yong Steel 5080 0 0 420 Round Steel Φ14mm Q235 Yong Steel 5070 0 0 420 Round Steel Φ16mm Q235 Yong Steel 5060 0 0 420 Round Steel Φ18-20mm Q235 Yong Steel 5050 0 0 420 Hot Roll 2.75mm*1500*C Q235 Handan Steel 5500 0 0 550 Hot rolled coil 5.5mm*1500*C Q235 Handan Steel 5280 0 -70 580 Hot rolled coil 9.3mm*1500*C Q235 Handan Steel 5280 0 -70 580 Hot rolled coil 11.5mm*1500*C Q235 Handan Steel 5280 0 -70 550 Hot rolled coil 3.0mm*1500*C Q235 Shagang 5450 0 -50 600 Hot rolled coil 5.5mm*1250*C Q235 Shagang 5250 0 -100 550 Hot rolled coil 9.5mm*1500* C Q235 Shagang 5250 0 -100 550 Hot rolled coil 11.5mm*1500*C Q235 Shagang 5250 0 -100 520 Hot rolled coil 4.5*1250*C Q235 Rizhao 5270 0 -80 620 Hot rolled coil 5.75*1500*C Q235 Rizhao 5270 0 -80 620 Hot rolled coil 2.75mm*1250*C Q235 Masteel 5500 0 -50 550 Hot rolled coil 4.75mm*1800*C Q235 Masteel 5500 0 -50 600 Hot rolled coil 5.5mm*1800*C Q235 Masteel 5500 0 -50 670 Hot rolled coil 2.75mm*1500*C Q235 Tangshan Steel 5500 0 0 550 Hot Roll 4.5mm*1500*C Q235 Tang Steel 5350 0 0 650 Hot Rolled Roll 11.5mm*1500*C Q235 Tangsteel 5350 0 0 650 Strip 3.0*700 Q235 Beidai 4850 0 0 100 Strip 4.0*500 Q235 Beitai 4800 0 0 100 Strip 5.75*720 Q235 Beitai 4750 0 0 100 Strip 7.7*720 Q235 Beitai 4750 0 0 100 Strip 9.5 *720 Q235 Beitai 4750 0 0 100 Strip 11.5*720 Q235 Beitai 4800 0 0 100 Cold rolled sheet 1.0mm*1250*2500 DC01 Wuhan Iron and Steel 6550 0 0 850 Cold rolled sheet 1.2mm*1250*2500 DC01 Wuhan Iron and Steel 6500 0 0 850 Cold Rolled plate 1.5mm*1250*2500 DC01 Wuhan Iron and Steel 6500 0 0 850 Cold rolled plate 2.0mm*1250*2500 DC01 Wuhan Iron and Steel 6500 0 0 850 Cold rolled coil 2.5mm*1250*2500 DC01 Wuhan Iron and Steel 6500 0 0 800 Cold rolled coil 1.0mm* 1250*2500 ST12 Masteel 6550 0 0 850 Cold rolled coil 1.5mm*125 0*2500 ST12 Masteel 6500 0 0 850 Cold rolled coil 1.0mm*1250*C ST12 Meigang 6500 0 0 820 Cold rolled coil 1.5mm*1250*C ST12 Meigang 6500 0 0 900 Cold rolled coil 1.0mm*1500* C ST12 Ma Steel 6500 0 0 820 Cold rolled coil 1.0mm*1500*C spcc Tang Steel 6400 0 0 800 Product Name Specification Material Steel/Origin Price (Yuan/Ton) Yesterday Last Week 6mm Q235B Xinyu 6400 0 100 850 Puzhong board 8mm Q235A Xinyu 6300 0 100 800 Puzhong board 10mm Q235A Xinyu 6200 0 50 750 Puzhong board 14-20mm Q235A Xinyu 5980 0 30 880 Puzhong board 6mm Q235B Nangang 6400 0 100 850 Puzhong Plate 8mm Q235A Nangang 6300 0 100 800 Puzhong Plate 10mm Q235A Nangang 6200 0 50 750 Puzhong Plate 12mm Q235A Nangang 6000 0 50 900 Puzhong Plate 14-20mm Q235B Nangang 5980 0 30 980 Puzhong Plate 10mm Q235A Horse Steel 6200 0 50 700 Puzhong Plate 14-20mm Q235A Ma Steel 6000 0 50 900 Puzhong Plate 25mm Q235A Ma Steel 5980 0 30 900 Low Alloy Plate 6mm Q345 Nangang 6300 0 0 150 Low Alloy Plate 8mm Q345 Nangang 6150 0 0 450 Low Alloy Plate 10mm Q345 Nangang 6000 0 0 520 Low Alloy Plate 14-20mm Q345 Nangang 6500 0 0 850 Low Alloy Plate 14-20mm Q345 Masteel 6100 0 0 900 Low Alloy Plate 14-20mm Q345 Feida 6000 0 0 850 Boiler Plate 8mm 20g Nan Steel 7050 0 250 800 Boiler Plate 10mm 20g Nan Steel 6900 0 200 780 Boiler Plate 12mm 20g Nan Steel 6580 0 200 780 Boiler Plate 14-20mm 20g Nan Steel 6550 0 200 780 Container Plate 8mm 16MnR Xinyu 7220 0 250 900 Container Plate 10mm 16MnR Xinyu 7120 0 250 930 Container Plate 12mm 16MnR Nansteel/Xinyu 6750 0 240 880 Container Plate 14-25mm 16MnR Nangang/Xinyu 6700 0 250 850 Seamless Pipe 25*2.5 20# Wuxi 7500 0 500 1050 Seamless pipe 38*3.5 20# Wuxi 6700 0 300 950 Seamless pipe 48*4 20# Wuxi 6650 0 300 900 Seamless pipe 57*3.5 20# Wuxi 6650 0 300 950 None Seam pipe 60*4 20# Wuxi 6650 0 300 950 I-beam 20#/b Q235 Laiwu Steel 5300 0 450 800 I-beam 36#/b Q235 Laiwu Steel 5400 0 420 650 Channel 16#a Q235 Masteel 5450 0 300 850 channel steel 25# Q235 Wugang 5600 0 350 950 50*50*5mm angle steel Q235/magang steel 5350 0 50 550 angle steel 50*50*5mm Q235 Shougang 5350 0 150 700 galvanized coil 0.5mm*1000*2000 JY Wuhan Iron and Steel 6950 0 350 950 Galvanized coil 0.7mm*1000*2000 JY Wuhan Steel 6750 0 250 950 Galvanized coil 1.0mm*1000*2000 JY Wuhan Iron and Steel 6550 0 150 900 Galvanized coil 0.5mm*1000*2000 ST02Z 695003501000 galvanized coil 0.75mm * 1000 * 2000 ST02Z BX 66800200980 galvanized coil 1.0mm * 1000 * 2000 ST02Z BX 65500150900

Window Lid Aluminum Jar

Window Lid Aluminum Jar,Aluminum Jar with Window Lid,Aluminum Jar with Window Cap

Honesty-Honored E-Commerce Firm , http://www.ywغير مجاز مي باشدmeticpacking.com

• Model NO.: XC-HL50KG

                                                                                                                                                                                                                                           

• Working: High Speed Mixer

                                                                                                                                                                                                                                           

• Application: Liquid with Suspended Solids, Powder, Viscous Fluid, Liquid, Granules

                                                                                                                                                                                                                                           

• Application Area: Plastics Industry

                                                                                                                                                                                                                                           

• Mixing Drum Shape: Drum

                                                                                                                                                                                                                                           

• Operating type: Cycle Operating

                                                                                                                                                                                                                                           

• Stainless Steel Mixer: Yes

                                                                                                                                                                                                                                           

• Power: 3kw

                                                                                                                                                                                                                                           

• Szie: 1000**740*1250mm

                                                                                                                                                                                                                                           

• N.G: 180kg

                                                                                                                                                                                                                                           

• Brand Name: Xiecheng

                                                                                                                                                                                                                                           

• Trademark: xiecheng

                                                                                                                                                                                                                                           

• Specification: CE/SGS/ISO9000

                                                                                                                                                                                                                                           

• HS Code: 8477800000

                               

• Mixer Type: Powder Mixer

                                                                                                                                                                                                                                           

• Stirring Type: Spiral

                                                                                                                                                                                                                                           

• Certification: CE, ISO, SGS

                                                                                                                                                                                                                                           

• Layout Type: Verticle

                                                                                                                                                                                                                                           

• Additional Capabilities: Drying

                                                                                                                                                                                                                                           

• Condition: New

                                                                                                                                                                                                                                           

• Capacity: 100kg

                                                                                                                                                                                                                                           

• Motor: 4HP

                                                                                                                                                                                                                                           

• Rotating Speed: 85 R/Min

                                                                                                                                                                                                                                           

• Fast Mixing: Yes

                                                                                                                                                                                                                                           

• Warranty: One Year

                                                                                                                                                                                                                                           

• Transport Package: Wooden Package

                                                                                                                                                                                                                                           

• Origin: China

                                                                                                                                                                                       

                                                                    Automatic Vertical spiral ribbon mixer/Plastic Color Mixer Machine

1. Vertical structure with castor wheel,small foot-print and easy to move;

2. Vertical reducer motoradopted ensured low noise and long operation hours;
3.Complete mixing with short time ,low engery consumption and high efficiency;
4.Pail cover and bottom parts and compress from precisely matched&durable;
5.Mixing timer able to set within 0-30 minute.
6.Stainless steel paddle with scientific structure, able to mix raw material completely;minimize load, save time and electricity;made of premium stainless steel,high strength and easy to clean.







 

Electric Paint Remover

Electric Paint Remover,Electric Floor Polisher,Electric Masonite Polisher

Goldsen International Trade Co., Ltd. , http://www.yypowertool.com

With the arrival of the era of high-definition surveillance, the غير مجاز مي باشدt of the entire security video surveillance system began to rise significantly. Among these, not only is the غير مجاز مي باشدt of front-end HD cameras increased, but the غير مجاز مي باشدt of back-end storage devices has risen dramatically as image clarity has increased from SD to HD. The data shows that when using traditional DVR and NVR solutions, the غير مجاز مي باشدt of storage devices in the entire video surveillance system is roughly 15% to 30%; while in digital network high-definition video surveillance systems, the غير مجاز مي باشدt of storage devices in the entire system is Will rise to 50% to 70%.

This is not a sensational statement. Taking the HD basic 720P effect as an example, the normal hard disk capacity required for video surveillance is about 4G~8G/hour. For economic reasons, reducing the hourly video recording can be reduced to about 3GB. capacity. Taking this as an example, eight-way monitoring is about 17T capacity by one month calculation. According to the relevant regulations, surveillance video in public places needs to be kept for at least one month (30 days) or longer, and in some places for a longer period of time, the mass data storage problems caused by this can be imagined.

So, what can be done to reduce غير مجاز مي باشدts on the basis of expanding storage? The following are some common ways to reduce storage space for your reference.

Choose the right codec

If you upgrade the encoding format from MJPEG to H.264, you can save more than 50% of the storage space. Because of this, more and more end-users are beginning to upgrade their data formats from MJPEG and MPEG-4 to H.264, allowing compressed video to take up less space while maintaining the same video quality as MPEG-4.

A typical frame (R frame) is selected in the video sequence, and the end user can choose to store only R frames. By using R frames and compressing video streams in H.264 format, video streams can be generated with lower bandwidth and more efficiently. This situation is useful for most cameras. For example, for a fixed camera that monitors a few moving targets at an airport terminal or for a continuously rotating camera like PTZ, the resulting R frame increases.

In some cases, the video quality provided by the H.264 compression method is only better than the video quality provided by the MJPEG compression method at the border, but because the H.264 compression method occupies lower bandwidth. Therefore, recording video data takes up less storage space.

In general, in most monitoring systems, H.264 is an efficient codec in terms of reducing bandwidth and storage space.

Idle time to reduce the recording rate

We all know that in places like office buildings and schools, there are few people appearing at night, but the cameras are working as usual. The recorded videos do not have any effect at all and they also occupy storage space. Therefore, we can consider lowering the recording rate during periods when there are few moving targets by controlling the recording rate. For example, 15 frames per second may occupy a large amount of storage space. At this time, it is possible to use 2 to 3 frames per second, or even 1 frame per second. Rate recording, the end user can save up to 80% of the recording space.

However, although there are few pedestrians in the building during the night, many meeting rooms are not used during most of the time. If these occasions have been recording video at a low rate, what if there is an alarm? We can consider adding basic intelligent motion analysis to the monitoring system. If there is a moving target, the recording frame rate will return to the normal rate. When the moving target disappears, the recording rate will return to 2 to 3 frames per second. As a result, it not only reduces the storage space, but also can play the role of monitoring alarms.

Do not record unwanted content

The above method is mainly for the monitoring area is mainly static type, the number of monitoring targets is not much, but if for the road, elevator and other places where people come and go, we cannot use the above method to reduce the recording rate. In this case, is there a feasible solution?

At this time, we can consider adding a basic motion analysis software package to the monitoring system. For some moving objects, we do not need to record their videos. For example, when a car drives down a road, we don't need to record the whereabouts of the car. When the trees sway in the wind, they don't need to record; if this happens, they are also recorded, like the surveillance perimeter. It is necessary to keep recording, so the storage space consumed can be imagined.

According to relevant statistics, for some cameras, the areas that are not required to monitor moving targets in the surveillance area can save up to 50% of storage space.

Fixed rate decimation frame storage technology

According to the current mainstream compression method, the required space for surveillance video storage is as follows:

H.264 compression method: HAFLD1 resolution, real-time 25 frames, 300M/hour/road;

H.264 compression method: CIF clarity, real-time 25 frames, 200M/hour/road;

Based on the above data, we can basically estimate the storage space required for all the video surveillance images. For example, a bank needs a 1-channel D1 video surveillance system, 7*24 hours of monitoring, data can be covered in 3 months, then the total capacity needs 1.1TB.

If the video we already have is not as important as the new video, we can reduce the recording frame rate of the old video. This can greatly reduce the need for old video storage space. At the same time, old video can still be used as evidence if needed.

Using fixed-rate decimation frame storage technology, such as 25-frame/s video files stored within one month, can be reduced to 15 frames/s without affecting video recording information, which can also greatly save storage. space.

Rubber sheet

Rubber,Latex Rubber,Rubber O-Ring

Weisike Sealing Co., Ltd. , http://www.wzgasket.com