Remote wifi transmission module factory workshop campus dedicated video transmission, in today's rapid development of science and technology, the use of high-tech security communication means to prevent and stop all kinds of possible events. With the rapid development of computer network communication technology, image compression processing technology and wireless transmission technology, the security technology defense industry can adopt the latest communication and image/voice processing technology, by building a flexible network to transmit digital images and control images, For the realization of local and remote image monitoring and network alarm system to provide efficient, feasible, cheap factory workshop remote wifi transmission module wireless transmission scheme.
First, the advantages of remote wifi transmission module wireless video transmission
1, the installation and construction is convenient, the use of long-distance wifi transmission module to avoid or reduce the workload of network wiring, does not damage the original environmental facilities, has the characteristics of short construction cycle, high cost efficiency.
2. To achieve fast coverage, the video codec is responsible for converting the analog wireless video surveillance signal of the camera into digital signal, and at the same time, it compresses and transmits the control signal. The built-in 10/100M network adapter of the video codec is connected to the wireless transmission device through the network cable, and the encoded and compressed monitoring information is collected through the wireless network to the traffic monitoring management center. The surveillance center can see the roads and intersections under its jurisdiction. The monitoring personnel can browse the video images in real time and remotely control the cradle head through the LAN or Internet of the monitoring center. In order to fully ensure the bandwidth of each monitoring point, the bandwidth of each monitoring point is adopted. MPEG4 coding standard, low bandwidth occupation, remote wifi transmission module can achieve high quality image transmission and storage, transmission distance up to 15 kilometers, suitable for wireless transmission in a wide urban area.
Second, customer site analysis
The site is a large - scale foreign - invested enterprise factory producing molds. There are 3 workshops in the factory, and the area of each workshop is 40m*120m. Yes. Workshop No. 1.2 needs to install 12 cameras, workshop No. 3 needs to install 11 cameras, all cameras are installed on the mold machine. The cameras are all wireless webcams. The distance from the workshop to the control center of the office building is less than 200 meters. Because the factory has been decorated, the wiring needs to break the ground, the construction amount is large, the cost is high. The camera is installed on the machine, the wiring is not convenient to move, easy to break first, later maintenance cost is very high. Therefore, the workshop adopts wireless AP coverage between the control center and adopts five transmission modes to transmit video signals to the control center.
Third, wireless transmission solutions
Based on the field situation, point-to-point transmission to the control center is not practical because the camera is installed in the workshop. We take measures. The AP coverage form of the remote wifi transmission module takes the whole workshop as wireless coverage. Each workshop is equipped with two high-power wireless aps and high-definition cameras for wireless network. The AP accesses the switch and transmits the video image to the control center using the digital wireless transmission device. The control center is transmitted and received by the digital wireless transmission device. The wireless video transmission of the whole remote wifi transmission module can be realized by entering the computer terminal or mobile phone terminal.
Remote wifi transmission module campus wireless security system solution, campus wireless transmission is more important in the society. Campus safety has become one of the areas of concern of the whole society. The local government gradually brings all kinds of public security monitoring at the school gate into the scope of urban public security monitoring. Through the docking with public security city alarm and wireless video surveillance system, enhance the campus security inspection and emergency response ability. Shenzhen TENgyuan ZhITUO Electronics Co., Ltd. effectively refined the actual application scenarios of the education industry, formed a complete wireless transmission scheme for all levels of education system, to protect the safety of the education environment.
1. Introduction of high-definition wireless video monitoring for remote wifi transmission module
Hd wireless video surveillance is also a bandwidth - and space-hungry system. In order to fully ensure the bandwidth of each monitoring point, the bandwidth H.264 coding standard is adopted. Secondly, reducing the storage space of HD video data is also a problem we need to solve. To ensure smooth transmission and storage of high-speed video images, the flow rate of each video must reach 120 frames/SEC. As we all know, users who can use high-definition wireless video surveillance system are generally key industries with high video quality requirements, such as airports, subway, financial banks, customs, border security, road traffic, urban security wireless transmission.
Second, the school site analysis
According to the project requirements, it is necessary to use high-definition cameras of the remote wifi transmission module to control key parts of the school, monitor passing vehicles and people in and out in real time, and effectively deal with the site. Surveillance should be carried out at the school gate, every teaching building, dormitory building and playground. The monitoring system has 15 monitoring points with a transmission distance of 2km. In order to effectively and stably transmit the signal to the monitoring room, we use wireless digital network bridge point for multi-point monitoring to realize the monitoring of the whole wireless system.
Third, wireless transmission solutions
The principle of wireless transmission can only be realized if there is no blocking. Because the customer requires the use of high-definition surveillance cameras, we use the form of one-to-many transmission. The 15 points in the front end are connected to the HD cameras using a digital bridge, but three of the monitoring points are blocked from reaching the monitoring room. Therefore, we need to transmit these three barrier points to the highest roof nearby, which is received by the digital bridge, and then transmitted to the monitoring room by the bridge. The remaining 12 monitoring points are received in the form of a pair of four at the receiver end, access switches, and then into the network hard disk recorder or computer.
In addition to the remote wifi transmission module wireless video monitoring system, a complete campus wireless transmission scheme also includes perimeter alarm system, access control identification system, one-card system, entrance and exit management system, patrol system and other subsystems. With the continuous development of technology, multiple systems will gradually integrate with each other and work together to provide a complete campus wireless transmission system.
