3 km wifi module long-distance transmission data manufacturers railway room/mine wireless transmission
Installation background:
Beijing District railway video surveillance project is a document issued by a district road protection office in Beijing. Through the installation of all-weather video monitoring equipment along the railway, relevant railway departments can carry out real-time monitoring, video recording, remote monitoring, alarm processing and other monitoring points. In case of an emergency, it can retrieve the scene pictures in time and make real-time video recordings, record the time and place of the event, and report to the police in time.
Site situation:
The monitoring section is roughly divided into two zones, each with about 20 points. Some sections have neighborhoods and buildings, adding to construction difficulties, and wireless transmission is not particularly ideal.
Solution:
In some areas, there are many buildings and trees and the ground is hard to wire, so we decided to use a wireless transmission system for video signal transmission. In this project, the 3km wifi module transmits data at a long distance and the signal transmission scheme of the manufacturer can be said to save time, effort and worry, which has great advantages over wired monitoring and transmission in terms of construction cost, construction period and construction difficulty.
After the remote transmission of data by 3km wifi module, the technical personnel of the manufacturer and the personnel of the construction unit have investigated for many times. According to the specific analysis of the site situation, it is decided to collect the site images in turn. The first few jumps use 100 gigabit wireless transmission equipment, after the use of gigabit wireless transmission equipment. In the construction process, our technical personnel guide the whole process, ensure the construction progress, timely discover and solve problems, so that the wireless video monitoring system within the specified time perfect acceptance. In this project, the construction unit is very satisfied with our technical support.
Wireless transmission scheme of Qingdao mine in Shandong Province
Industry Background:
Our country is rich in mineral resources, but safety accidents in mining area occur frequently in the process of mineral development. In order to ensure the safety and smooth production environment of mining areas, mining areas are also advancing with The Times. It is imperative to install a set of security monitoring system integrating audio, video and data, taking into account monitoring, communication and network access. Considering the complex environment in mining process, wired monitoring is difficult and maintenance is not convenient, it is suitable to use wireless transmission system to ensure the safety of mining production.
Project introduction:
In order to ensure the safety of mining, a mining company in Qingdao, Shandong province, needs to install a complete wireless transmission system under the mine to transmit real-time running images of track electric locomotives to the ground monitoring center, to accumulate experience for future unmanned driving. The manufacturer was invited to provide relevant equipment for the project and participate in the construction and installation.
Description of the site environment:
Although the entire mining roadway area is an open area, there are many machines and temporary columns, high voltage lines and ventilation and drainage networks in the roadway. The wiring is not convenient. Plan to use wireless AD hoc network equipment to achieve network coverage and form a network loop. It is feasible to use optical fiber to transmit underground data to the surface.
Solution transmission explanation:
The manufacturer adopts AD hoc networking scheme for remote data transmission of 3km wifi module. There are many curves in the two directions, and there are vertical lanes connected at different distances in the middle. The equipment is installed at the bend, the base station is erected, and the network connection and signal coverage are realized. At least two directional antennas should be installed for each device, three directional antennas should be installed for the three fork road devices, and 360-degree omnidirectional antennas should be installed for the three mobile cars. The mobile transmitted data can communicate with each base station, and the base station transmits video signals to the surface main well monitoring center through optical fibers. Eight devices set up base stations. After the device is powered on, it will send out signals and communicate with the front end and the back end within the receiving range of the antenna to realize the wireless network ring network. MHES wireless AD hoc network can also communicate across network segments, which can be realized in actual tests. That is, front-end and back-end devices are not on the same network segment, but with the same frequency, they can also communicate. In this case, the device is used when the number of devices in the same network segment cannot meet the requirements. For easy management, any one of the eight devices can be connected to optical fiber to transmit data to the ground.
Mesh Features of wireless AD hoc networking:
3km wifi module remote data transmission manufacturer Mesh wireless AD hoc network system has the characteristics of simple installation, easy maintenance and stable operation. Communication is only possible after power is installed at each point, no need to pull a wire. The device is dustproof and waterproof. If the laptop is connected to the optical fiber, you can access any device (open the web page and enter the IP address of the corresponding device) to view the running data and parameter adjustment.
The module used in the scheme is CV5200 with MESH ad-hoc networking function, advanced MESH design concept, no central gateway is needed, any one can realize the ad-hoc networking function, any device in the group offline, the corresponding device will continue to communicate within the effective antenna coverage range.
Implementation effect:
Through the installation and debugging of Mesh wireless AD hoc network equipment and technicians of the manufacturer for long-distance data transmission through the wifi module of 3km, the real-time running image of underground track electric locomotive of the mine project is successfully transmitted to the ground monitoring center, achieving the effect of network coverage. It provides a strong guarantee for safety production in mining area.
