Wireless tilt sensor has been widely used Release date:2019-10-16   Browsing volume:610

Wireless tilt sensor have been installed on power transmission lines to ensure safety.


The low-power, multi-parameter, and highly integrated transmission line intelligent online monitoring system combines the Wireless tilt sensor technology of the transmission line with the wireless high-speed transmission network technology. The intelligent system collects data on the status of the transmission line through wireless sensors. Then, the local sensor data is uploaded to the host through the intelligent online monitoring system of the cognitive communication integrated transmission line. The intelligent system realizes real-time monitoring of the operating state of UHV transmission lines. Wireless sensor technology enhances the accuracy of on-line monitoring of UHV transmission lines and the intelligence of system processing transactions.

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A variety of sensors are integrated into the system, such as intelligent spacers based on low-power technology, smart insulator rings, and so on. Real-time monitoring of the physical quantity of UHV transmission lines can be realized. Multi-data fusion detection is realized, and multi-angle measurement values can be referred to. Timely discovery of faults and risks in the operation of the line. Effectively avoid power interruption caused by line outage. At the same time, it can also reduce the workload of on-site inspections and reduce maintenance and labor costs.


There are a large number of wireless tilt sensor nodes. After large-scale deployment, autonomous networking is required according to the environment and application requirements to form a collaborative networking system, which realizes the cooperation between resource virtual management, node capability combination, logical bearer and control management. While being able to cope with the dynamic changes of the network topology caused by the dynamic joining and exiting of nodes, it is necessary to fully consider the energy balance of the entire network system. It is necessary to overcome the design of dynamic sleep mechanism of nodes, data links and networks, and study conflict avoidance mechanism and multi-path multi-factor route generation and update technology.

 

The wireless tilt sensor used in the solution is based on the NB-IoT network and has the following features:

1. Wide coverage, will provide improved network coverage, in the same frequency band, NB-IoT gain 20dB than the existing network, equivalent to 100 times the ability to improve the coverage area;

2. With the ability to support connections, NB-IoT can support 100,000 connections in one sector, supporting low latency sensitivity, ultra-low device cost, low device power consumption and optimized network architecture;

3. Reduce power consumption, NB-IoT terminal standby time can be up to 10 years.


The core sensor of this system uses the WM400 wireless tilt sensor. Unlike traditional tilt sensors, the WM400 uses a high-performance rechargeable lithium battery. Optimized for internal circuitry, it automatically enters low-power sleep mode. Users can set the acquisition frequency by themselves, the highest precision is 0.005°, and it can be used for several years without replacing the battery. In addition to this, the WM400 also has excellent long-term stability and zero drift. The system hardware architecture mainly consists of the main control MCU system, reset system, sensor system, filtering system, A/D conversion system, clock system, sound and light alarm system, RTC system and wireless transmission system.

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