Remote wireless transmission of intelligent urban breeding platform. Jilin Development Zone is located in the southeast of Jilin Province, with dense forests. The area is near Hehe Township, Long Township and Songjiang Town to the east, Fusong County border to the west, Korea to the south and Liangjiang Town to the north. The whole area is long and narrow from southeast to northwest, and is the gateway to and from Changbai Mountain, known as the "first town of Changbai Mountain".
Project requirements:
In order to build a civilized and smart town, according to the requirements of the Development Committee, it is necessary to install a sound monitoring and illegal capture system on urban traffic roads. The manufacturer of ultra-long distance wifi transmission module is invited to provide monitoring and transmission equipment and assist technical installation for this project.
Solution:
No traffic lights on all streets in Chibei District. The speed limit on main streets is 40 km. All vehicles must be courteous to pedestrians every hour. There are 10 speed traps, 28 ball traps and 50 camera traps covering the city streets. Considering the complex environment of the site, the ultra-long distance wifi transmission module decides to wirelessly transmit all the on-site videos to the Public Security Bureau, which is divided into four links. Due to the serious blockage in the urban environment, all the intermediate transmission is adopted by trunk, and the trunk location is connected by camera.
After the installation and debugging of the system was completed, every point of the whole capture system of the ultra-long distance wifi transmission module was transmitted to the central control room through the field test, and the transmission was stable. The success of the project has helped Chibei better manage its urban traffic problems and shows that wireless transmission systems are an important part of building a civilized and smart town.
Remote wireless video surveillance case of aquaculture platform with ultra-long distance wifi transmission module
Background:
To improve aquaculture management and ensure the safe development of the offshore aquaculture industry, a farm in Jianghai waters decided to install a video surveillance system to monitor abalone aquaculture platforms at sea in real time. Considering that the farm is located on the sea and far from the shore, it is not convenient to lay out cables. The farm decides to use a remote wireless video monitoring system. Ultra-long distance wifi transmission module manufacturers are invited to provide equipment supply and system construction services for wireless video surveillance system.
Project requirements:
1. According to customer requirements, two high-definition ball machines have been set up on the offshore breeding platform to monitor the situation of the platform.
2. Set a data receiving point on the shore, upload the data of the abalone breeding platform to the server, and watch the situation of the abalone breeding platform in real time through the mobile client.
3, front-end equipment to meet the high temperature, high humidity, low temperature, cold, thunderstorm weather normal application, effectively eliminate the impact of bad weather.
4, the system should have scalability and upgrade function, suitable for the monitoring system development requirements.
Site situation:
In the process of wireless signal transmission, there can be no large objects between the sending point and the receiving point, which will cause the signal cannot be transmitted. This application in the sea, transmission path without obstacles, very suitable for high frequency wireless transmission.
In the whole scheme, several requirements put forward by customers are fully met:
1. Wireless network design of ultra-long distance wifi transmission module
The main network of the system adopts point-to-point wireless transmission mode, which ensures the remote transmission and has a stable high bandwidth for video transmission. This scheme mainly uses 802.11an standard series devices. The longer the transmission distance, the greater the spatial attenuation of wireless signal, but the system design is sufficient to meet the requirements of data transmission.
2. Wireless design
The front end video acquisition equipment uses two HD camera, connected to the local NVR and one CV5200 via a switch. Farmers can watch real-time surveillance videos of the breeding platform through their mobile phones. The system can monitor the bridge transmission rate and set parameters remotely, adjust the equipment; Convenient for personnel maintenance.
Considering the influence of rain and other weather factors, two CV5200 are selected, and 120 ° plate antennas are connected externally. The remote transmission can reach 40M bandwidth, effectively ensuring the high-speed transmission of video data, and considering the uniformity and late expansion of the equipment.
CV5200 series 100Mbps ultra long distance wifi transmission module is suitable for wireless network connection service in harsh field environment, not only suitable for network transmission, but also suitable for large ip monitoring needs. Two remote nodes can be effectively connected by built-in or external high-gain antennas, providing wireless transmission quality comparable to that of wired networks.
After the completion of the wireless video monitoring system and the tracking service at the later stage of the project, the ultra-long distance wifi transmission module of the whole wireless video monitoring system runs stably. The video transmission is clear and the success of the project is of great significance for the easier management of the offshore abalone farm.
