10km wifi wireless communication module elevator/emergency control wireless video transmission, Shenzhen community building elevator wireless video monitoring project
Industry background
Elevators are the portals and passageways of buildings. In order to ensure the safety of passengers and help regulators to know the interior situation of the car in real time, video surveillance of the elevator plays an important role in the safety work of the whole area, is an indispensable and important link. How to install video surveillance in elevator? The traditional monitoring network uses wired transmission, consumes a lot of manpower and material resources, the construction period is long, laying the cable will destroy the original building, affect the overall appearance; Wireless transmission can avoid cable laying in elevator shaft, reduce construction difficulty, save cost and shorten construction time.
Shenzhen Peninsula Phase III project successfully completed, a total of 19 elevators in the community need security video surveillance. This project is the equipment supplier and technical guidance of wireless video surveillance system.
Demand analysis
This is the community's elevator video surveillance program. A total of 19 elevators requiring security video surveillance are located in 10 residential buildings, each with no more than 20 floors; The internal video capture equipment of each elevator car shall ensure full digital HD. The video data of each building shall be uniformly transmitted back to the security room on the first floor for real-time browsing and storage. At the same time, the relevant personnel of the management office can remotely access and access the video anytime and anywhere.
Design aspiration and rationale
In this project, the engineer required the system to use analog equipment. So we chose analog wireless video transmission, and analog hemisphere cameras for the interior of the car. A pair of 10km wifi wireless communication modules form a wireless transmission channel outside, and the receiving end at the bottom of the elevator shaft is connected to the wired network of the security room on the first floor. The surveillance video can be viewed and stored in real time through the network hard disk video recorder in the safe room. External managers can also access the video remotely through the Internet via the 10km wifi wireless communication module, so it is necessary to keep the safe room connected to the Internet.
On-site installation of equipment
As the monitoring center is located in the security room on the first floor, the wireless receiver is installed on the side wall at the bottom of the elevator shaft, and the car itself belongs to the steel structure, which will block the wireless video signal transmission. Therefore, the 10km wifi wireless communication module needs to be installed at the bottom of the car, and the direction of the antenna points down to the installation position of the receiver, to ensure that there is no shielding between transmission channels.
4G wireless video transmission 10 km wifi wireless communication module mobile emergency control system, fire, emergency, rescue, command, rescue and other special situations, wireless transmission anytime and anywhere.
Demand analysis
The mature 4G wireless network is used for real-time video transmission, and the front-end collection and transmission equipment can be portable to use, supporting the central network, hierarchical management and TV wall to watch video.
Support wireless video (laptop) requires the device to transmit the on-site video to the monitoring center or other networked units all day long. In case of emergency, after arriving at the scene, the portable 10km wifi wireless communication module wireless video acquisition and transmission system can transmit the actual situation of the scene to the monitoring center in real time.
Joint processing: In the process of arriving at the scene and processing the scene incident, the portable wireless video acquisition and transmission system can upload the scene and center video in real time, combined with the 4G network of the three major operators, to ensure the timely and effective processing process. Remote command: The portable wireless video acquisition and transmission system is used to monitor the surrounding field conditions in real time, and the monitoring center conducts remote monitoring management and command according to the field conditions.
Design principles and basis
According to the site situation, develop a detailed wireless centralized monitoring scheme to ensure the stability of video signal transmission. It is decided to use 10km wifi wireless communication module in the wireless monitoring system to meet various monitoring requirements of related departments.
On-site installation
Each accident site is usually uncertain, so the system uses 4G network connection technology, which has strong technical advantages and flexible response ability. The site situation is transmitted back to the monitoring center in time through the wireless video technology of 10km wifi wireless communication module, which is convenient for remote command and dispatch, greatly reduces the response time, and facilitates rapid remote dispatch and command.
