Wireless transmission of Marine/freight mobile vehicles. As an operation and living platform for oil production, drilling or meteorological data collection, the offshore operation platform has a complex and special Marine working environment, about 20-100 kilometers away from the land. Operational platforms and terrestrial communications are particularly important. Offshore platform wireless transmission, submarine cable laying cost is high, satellite communication bandwidth is low, high use cost, not convenient to use as a means of daily communication.
The main services of communication between offshore operation platform and land include: production data transmission, video surveillance transmission, video conference, command and dispatch, voice telephone, broadband Internet and other service applications. The platform has different functions, different operators and different bandwidth requirements. At present, the actual demand of the customer is from the offshore platform to the shore of the receiving point of the distance of 20 kilometers, the actual transmission bandwidth is not less than 50 megabytes. According to the customer's description, our company recommends CV5200 as the wireless transmission solution for the main equipment.
8km distance wifi picture transmission module manufacturer CV5200 wireless
CV5200 Series industrial-grade wireless Bridges are suitable for offshore platforms and are designed for extreme environments. The equipment in the use of offshore platform moisture-proof, waterproof, saline-alkali corrosion resistance, can provide users with 300M high-speed wireless link, drilling platform and offshore oil platform to provide stable and reliable wireless link. CV5200 series industrial grade wireless module network is flexible, can adopt point-to-point, point-to-point networking, can meet the requirements of 10KM, 20KM, 30KM and other distance wireless transmission requirements.
On-site solution:
When installed on site, the offshore platform is not high enough. According to the site environment, installed on the platform fixed guardrail, the height of the lighthouse on the shore reaches 100 meters, making the height on both sides exceed the sea level arc. 8km distance wifi image transmission module manufacturers adopt 25DB flat antenna antenna, wireless equipment uses universal network interface, convenient for customers to connect with various switches, video recorders and other equipment.
Our company does not have 8km distance wifi image transmission module also provides customers with the following on-site services:
1, the climate environment is harsh, snow, fog, sand and other natural phenomena are more common, the temperature fluctuation is large. As a result, the device can be built outside all day long wireless network, to ensure stable work in a variety of harsh natural climate environment.
2. The platforms in the offshore platform operation area are scattered, with some points several kilometers away and some points dozens of kilometers away. Our equipment can travel up to 100 kilometers.
3. The system has strong scalability. The offshore platform can be added or removed at any time as the work progresses, and our wireless equipment is simple and flexible to install.
4. 8km distance wifi image transmission module manufacturers have strong docking ability, monitoring front-end network camera (or video network server), controllable cloud head, alarm signal generator (fire, gas leakage, anti-theft, etc.) and other components can be connected.
5. In the system control, it can also connect to the current and voltage detection module and temperature and humidity detection module to share the data channel of the online video server. The online video server connects to the local wireless transmission network.
6. Offshore platforms require real-time monitoring of all oil well video images 24 hours a day, which requires high stability of wireless links. My company's equipment is industrial wireless network bridge, there are thousands of wireless project site can actually check.
Wireless video monitoring solution for mobile vehicles in a freight station in Nanjing. In order to improve the operation efficiency and safety of freight yard vehicles, the freight yard management department decided to install a set of video monitoring system to command the remote operation of on-site vehicles. The 8km distance wifi picture transmission module manufacturer was invited to provide scheme design and technical support for the project.
Project analysis
When the field wiring is not convenient and the monitoring object needs to be moved, the traditional wired scheme can not meet the requirements of various monitoring systems. There is a car at the scene, and the image on the car needs to be transmitted to the monitoring center during the driving process. As the front vehicle is far away from the monitoring room, up to 5 kilometers away, the indefinite item moves, requiring wireless microwave signal transmission.
Customer requirement
At the initial setting of the project, one vehicle needs to realize wireless video transmission, and each vehicle needs to be installed with two gun machines and one billiard machine. Infrared and three cameras are integrated through switches.
1. The video acquisition part of the monitoring system adopts HD network camera, and the image of the camera is transmitted to the back-end monitoring center through the wireless transmission equipment on the vehicle.
2, the commander through the front three high-definition cameras returned images, to achieve real-time remote command of the vehicle personnel, effectively improve work efficiency.
3, the equipment installation is convenient, easy to disassemble, strong mobility, simple debugging, reusable, image transmission real-time stability.
4. All wireless video monitoring equipment on the vehicle is directly powered by the vehicle battery, which can save costs.
5. The design of wireless video monitoring equipment should consider waterproof, dustproof and shock-proof.
6, the vehicle is a moving object, in the transmission process need to consider the Angle of the antenna, the best use of omnidirectional antenna transmission. When installing the antenna at the end of the vehicle, serious turbulence should be considered, which may lead to antenna breakage and damage.
7. The maximum distance between the monitoring room and the vehicle is about 5 kilometers. The monitoring room uses 16 NVR channels as the monitoring host, which can realize image storage, playback, real-time monitoring and other operation functions. You can then access the network through mobile phones, computers and other network devices for remote viewing.
solution
After field investigation by our company's technicians, we decided to complete the return of surveillance video through MESH ad-hoc networking of wifi image transmission module at a distance of 8 kilometers. Each vehicle is equipped with three high-definition network cameras and 3,600 ° omnidirectional transmitting antennas via the CV5200 transmitter to transmit signals to the monitoring center. The back-end monitoring center is equipped with a CV5200 receiving device covering three 120 Angle antennas. No matter where the vehicle moves, it is within the coverage range of the antenna signal, and the 8km distance wifi image transmission module manufacturer then transmits the image to the monitoring center. Through the test, the scene video transmission is smooth, fully meet customer requirements.
In the whole scheme, several requirements of the customer are fully satisfied. After tracking customer information in the later stage, the transmission performance of the whole project without video line monitoring system is stable, and everything runs normally! The project side is very satisfied with the site situation!
