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Wireless network video monitoring solution based on WIFI network and 4G private network transmission mode

Views:1     Author:Site Editor     Publish Time: 2020-02-24      Origin:Site

With the development and deepening of "Safe City" and "Xueliang Project" nationwide in recent years, although key areas in the city have been covered by video surveillance, the old urban areas, remote areas, harsh areas, power supply difficulties, monitoring points Complex and other areas, it is difficult to use traditional wired methods to build and achieve effective monitoring.


The installation density of video surveillance probes in cities is not enough, and it can only meet the monitoring needs of some urban key areas. It is impossible to completely achieve "surveillance without dead spots", and there is no video coverage at all in remote suburbs. Even the installed wired video surveillance is easily obscured by leaves, etc., and the installation points are concentrated on the crossroads, and there are many blind spots in the road sections. In the past, the only solution was to arrange police squads to wait. Not only were the police officers very hard, but the monitoring efficiency was not high.


In addition, it responds to rapid response and command during emergencies, temporary monitoring of security guards, real-time recording during case scene investigation, monitoring, surveillance, and real-time command during tracking and arrest. These situations do not require fixed video surveillance, and often require temporary video surveillance. It is more advantageous to use a wireless emergency deployment control scheme.


WIFI network site control


1. Application scenario:


When the temporarily deployed monitoring equipment is relatively concentrated in a certain range (within 10 meters), and the network construction cost is unacceptable, there is no scenario where remote monitoring of live video is required at the combat command center. Such as investigating squatting points, follow-up surveillance, covert investigation and so on.


2. Application method:


Set up a WIFI hotspot at the temporary deployment and control site, fixedly deploy a wireless network camera at a location with a good perspective, and use a mobile client to directly view the video of the front-end monitoring equipment built on site through WIFI.



4G private network site deployment


1. Application scenario requirements:


This method is suitable for scenarios where the temporarily deployed monitoring equipment is relatively scattered but not too far away (within a range of 3-5KM), without an operator network, and without the conditions to remotely transmit video back to the combat command center. Such as sudden disasters, counter-terrorism violence, rescue and disaster relief, remote mountainous areas and so on.


2. Application method:


1) The front-end equipment needs to be set up, and the 4G network camera can be fixedly deployed at a position with a good viewing angle. If it does not meet the requirements, a handheld 4G mobile terminal can be deployed. For longer distance night surveillance, you can choose a thermal imaging camera.


2) If you need to store the video locally, or use the existing monitoring equipment to complete the wireless transmission, you can deploy a 4G NVR, connect to the network camera through a network cable or wifi, and use the wireless transmission function of the 4G NVR to realize video transmission.


3) Set up a 4G private network emergency command all-in-one machine (with built-in base station function) on site to access the deployed wireless front and back-end equipment. The all-in-one machine can connect to the display screen through a VGA cable to view the video image of the access device.


4) For the environment where it is not convenient to take power in the wild environment, it also needs to be equipped with battery equipment and a protective box to meet the requirements of waterproof, dustproof and anti-riot. It can also supply power normally in outdoor severe weather conditions.


4G public network emergency deployment remote control backhaul


1. Application scenario:


This method is suitable for scenarios where the operator has network signal coverage on the site, and can be connected to the public security internal network, and there is a need to remotely monitor the scene video at the combat command center.


2. Application method:


1) The front-end equipment needs to be set up, and the 4G network camera can be fixedly deployed at a position with a good viewing angle. If it does not meet the requirements, a handheld 4G mobile terminal can be deployed.


2) If you need to store the video locally, or use the existing monitoring equipment to complete the wireless transmission, you can deploy a 4G NVR, connect to the network camera through a network cable or wifi, and use the wireless transmission function of the 4G NVR to realize video transmission.


3) Through the operator's 4G VPN private network transmission, the operator's VPN private network and the public security internal network are exchanged through a secure gatekeeper, which can temporarily transmit the remote monitoring and control site monitoring video information to the combat command center.


4) For the environment where it is not convenient to take power in the wild environment, it also needs to be equipped with battery equipment and a protective box to meet the requirements of waterproof, dustproof and anti-riot. It can also supply power normally in outdoor severe weather conditions.


In short, wireless video is not intended to replace wired video surveillance, but as a supplementary means for wired video surveillance. The two methods merge to achieve "video surveillance without dead ends".


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