Please accept it, thank you!
Question 2: What monitoring system is good? The monitoring system is briefly introduced. Ten national brands: Anbang, Dahua, Dali, Hikvision, Hanbang Hi-Tech, Jiaxin Jie, Nanzi Information, Relong Lerong, TCL and Tiandi Ye Wei have the best monitoring systems. What are the top ten foreign brands of monitoring system: American Dynamics, Bosch/Honeywell, MOX/NPE, Panasonic, Samsung Security, Sanyo, Sony, Tyco Security: devele Divert, EW FIBER Wisdom, HUNDA Security Electronics, Red Apple, Conway, Mika, Safer (safer), SANTER (saint), Top ten satisfied brands of TRADIO fast fish pickup and VISIONDIGI (Gan Wei Digital): Anshibao, DEESTO, Guardian Du Jia, * * * Communication, Black Hawk Vision, Nigida Hotan, Putian Century, Joule RL, Teton and VEONIC Sentinel; Top ten innovative brands of security: Weihongtai Technology, Criskoning, NetPosa, Tsinghua Tongfang. Anlixin, Ateret, Okit Hoquette, Patek, Chuangshi Technology, Du Anxin, Fabayre Fanda, SGT Defender and Tianyifei are well-known domestic security brands: Pelco- Pago, Stedean Rogland-Stedean, Leelen- Lilin, Longhorn Horn, Dahua-Dahua, and Hai.
Question 3: What are the good monitoring systems? Please recommend a good expressway monitoring system. I just checked and found a company called Shaanxi Mingrui Information. The monitoring center system they developed is specially designed for expressway. In addition to monitoring, the system can also be used for video conferencing. I just went to their website and saw it. I hope I can help you!
Question 4: What brand of electronic monitoring system is the best? Website address of Shanghai Shiguo Information Technology Co., Ltd.: gesee Address: Room A 1607, Hengsheng Building, Lujiabang Road, Shanghai 16 Postcode: 20001KLOC-0/Tel: 86213318355.
Question 5: A complete monitoring system includes those with detailed contents. 1. Closed circuit monitoring system.
A typical TV monitoring system is mainly composed of front-end equipment and back-end equipment, among which the back-end equipment can be further divided into central control equipment and sub-control equipment. Front-end and back-end devices can be constructed in many ways, and their connection (also called transmission system) can be realized by cable, optical fiber or microwave. As shown in figure 1- 1, the TV monitoring system consists of four parts: camera (sometimes including microphone), transmission part, control part and display and recording part. Each part contains more specific equipment or components.
1. 1 main equipment
1. 1. 1 camera part
The camera part is the front part of the TV monitoring system and the "eye" of the whole system. It is arranged in a certain position of the monitored place, so that its field of vision can cover all the monitored parts. Sometimes, the monitoring area is very large. In order to save the number of cameras and simplify the transmission system and control display system, an electric (remote control) zoom lens is added to the camera, which makes the camera observe farther and clearer. Sometimes, the camera is installed on the electric pan/tilt. Through the control of the console, the pan-tilt can drive the camera to rotate in the horizontal and vertical directions, so that the camera can cover a larger angle and area. In a word, the camera, like the eyes of the whole system, turns the content it monitors into an image signal and transmits it to the monitor in the control center. Because the camera part is the front end of the system, it converts the situation of the monitored place into image signals and transmits them to the monitor of the control center, so the camera part is the original signal source of the whole system. Therefore, the quality of the camera part and the quality of the image signal it produces will affect the quality of the whole system. From the point of view of system noise calculation theory, the biggest factor affecting system noise is the signal-to-noise ratio of the first stage output in the system (here, the image signal output of the camera). Therefore, it is very important to choose and deal with the camera carefully. If the image signal output by the camera reaches the monitor through the transmission part and the control part, the signal-to-noise ratio of the image signal reaching the monitor will be reduced, which is due to the noise introduced by lines, amplifiers, switches and so on. Transmission and control part.
In addition to the above discussion, for the camera part, in some cases, especially in outdoor applications, in order to prevent dust, rain, high and low temperature, corrosion and so on. The camera and its lens should be equipped with a special protective cover, and even the Yuntai should take corresponding protective measures. These will also be discussed in later chapters.
1. 1.2 transmission part
The transmission part is the image signal path of the system. Generally speaking, the transmission part simply refers to the transmission of image signals. However, in some systems, sound signals are transmitted in addition to images. At the same time, because a control center is needed to control the camera, lens, tripod head and protective cover through the console, the transmission system also includes the transmission of control signals, so the transmission part we mentioned here usually refers to the sum of all the transmission systems formed by the signals to be transmitted.
As mentioned above, the main content of the transmission part is the image signal. Therefore, it is very important to focus on the transmission mode of image signals and related problems in transmission. For the transmission of image signals, the key requirements are that after the image signals pass through the transmission system, there will be no obvious noise and distortion (neither chromaticity signal nor brightness signal will produce obvious distortion), and the clarity and gray level of the original image signals (image signals output by cameras) will not be significantly reduced. This requires the transmission system to have good performance in attenuation, noise introduction, amplitude-frequency characteristics and phase-frequency characteristics.
In terms of transmission mode, most TV monitoring systems adopt video baseband transmission mode at present. If the camera is far away from the control center, RF transmission or optical fiber transmission is also used. For these different transmission modes, the transmission elements and transmission lines used are very different.
1. 1.3 control section
The control part is the "heart" and "brain" of the whole system, and it is the command center to realize the functions of the whole system. The control part is mainly composed of the main console (some systems have auxiliary consoles). The main functions in the main console include: amplification and distribution of video signals, correction and compensation of image signals, switching of image signals, recording of image signals (or including sound signals), and control of cameras and their auxiliary components (such as lens, pan/tilt, protective cover, etc.). ) (Remote ... >; & gt
Question 6: What is the best video surveillance system in China? Is it useful? I think TEPCO Cloud Vision is the best monitoring software at present. With the world's leading intelligent video coding and decoding technology and mobile QOS technology, watching surveillance video will be smoother. This software is used in our office building.
Question 7: Which brand of home monitoring system is better? Home surveillance cameras can best meet the following five conditions:
1. It must be compact.
The design of home surveillance cameras should be compact, so as not to be easily noticed because of the size of the cameras, and not to interfere with the lives of family members.
2. Easy to repair
Home surveillance cameras need to be easy to install and fix, and the camera accessories should be complete, and there is no need to buy some additional accessories to help fix them.
3. It is better to be wireless.
The surveillance cameras at home should be wireless, so there is no need to wire them everywhere. Wireless surveillance cameras can be placed at will, without the trouble of wiring. The only requirement is that you need a wireless router, and the location of the surveillance camera is within the coverage of the wireless router.
4. The simpler the software installation, the better.
Because home surveillance cameras need to have certain computer knowledge in setting, it is very important to reduce the trouble of setting and installing family members.
5. Remote access can be made through the Internet.
It's best for home surveillance cameras to be remotely accessible through the Internet. For example, if you are in the office, you can check the real-time monitoring screen at home at any time through the computer. If you can see the monitoring screen anytime and anywhere through your mobile phone, it is the best choice.
Supplement:
From a technical point of view, the resolution of the home surveillance camera should be 640x480, and the maximum frame rate should reach 30 or 25 accounts per second, so that the video rate is smoother. In addition, this kind of home surveillance camera should support UPnP (Plug and Play) to save the setting of router ports.
Question 8: Video surveillance system equipment, it is best to have a plan that I hope will be useful to you! DVR realizes video coding and decoding with complete hardware capability, ensuring perfect and continuous video quality. The earliest application field of DVR is banking. It can be said that DVR is constantly developing with the application requirements of banks, and most functions are set according to the application requirements of banks. The development of PC DVR is more than three years earlier than that of embedded DVR, from which people learn about DVR products and technologies. However, in recent two years, with the development of embedded DVR, it gradually threatened the market position of PC DVR. The function of DVR The main function of DVR is the digital storage of images. If it's only for video storage, it doesn't show intelligence at all in wireless city's application. For example, in the parking system, when the car enters the community, the existing DVR can also record videos, but when it is necessary to find video materials, it is inconvenient and wastes manpower and time. 5438+0, DVR monitoring system adopts hard disk video recorder or computer video recording; (Different models and configurations can be selected according to different monitoring points) Video compression card (currently popular coding methods are MPEG4 and H.264) Video line, control line and power line front-end monitoring equipment; For example, cameras (there are many technical indicators of hemispheric and global night vision and non-night vision, so I won't explain them one by one here), video splitters, monitors, matrices, DVR monitoring and so on; Others are wired with extra materials. 2. The composition of network video monitoring; The network video server (including encoder and decoder) monitors the host computer (mainly computer, including monitoring center server, video server and client), and the monitoring software (matched with the network video server) transmits signals to wired network devices (such as switches, routers, network cabinets, network cables, etc.). UPS power supply (optional) front-end monitoring equipment box; There are also lightning protection facilities and grounding facilities;
Question 9: What are the better safety monitoring systems for large hoisting machinery? The safety monitoring system for large hoisting machinery is simple and easy to use, and it is recommended that Beijing Guo Xin United. It has been doing this for many years, with advanced technology, good performance and good operation. Please have a try.
Question 10: Which home monitoring system is better? The home monitoring system is equipped with monitoring equipment hardware.
Different manufacturers have different systems.