The comprehensive monitoring and diagnosis system for high-voltage cables based on wireless sensor networks has functions such as high-frequency partial discharge monitoring, sheath circulation monitoring, cable joint temperature monitoring, and tunnel environment monitoring. At the same time, it uses induction power to convert the electromagnetic energy of the line into electrical energy to provide working power for the monitoring device. The system uploads monitoring information such as signal amplitude, spectrum, and alarm events to the data acquisition terminal through wireless network. The data acquisition terminal transmits the data to mobile phones, robots, cloud platforms, and PMS2.0 systems through WIFI, 4G, and 5G networks. The system implements "self-organizing networks" in places without robots, using mobile apps to view, analyze, and download data. At the same time, the system can integrate multiple monitoring parameters to comprehensively evaluate the operating conditions of cables, detect latent defects, and achieve early warning and active operation and maintenance.

1. The monitoring unit adopts a fully sealed multi cavity shielding design, which has strong electromagnetic compatibility and anti-interference ability, and is equipped with analog digital hybrid filtering function, which can filter out various interference signals and reflect the accuracy of monitoring data in strong interference environments.

2. By using cable induction power supply, the electromagnetic energy of the line is converted into electrical energy to provide working power for the monitoring device, without the need to lay cables, greatly improving installation efficiency.

3. It has various monitoring signal trend charts, real-time waveform charts, automatic alarm functions, historical record queries, historical trend chart queries, and alarm record queries.

4. 433MHz or 2.4GHz communication mode can be selected according to the user's receiving terminal.

5. The system can integrate multiple monitoring data, evaluate the status of cables in real time, detect latent defects in cables in a timely manner, accurately determine whether there are defects in cables, and determine the presence or absence of defects.

6. The system data transmission meets the requirements of 4G communication and is compatible with 5G. It can automatically network through mobile phones, view data, analyze data, and export data using mobile apps.

7. The system can combine various monitoring information and fault case libraries to comprehensively process information, evaluate cable status, discover potential defects, provide rational auxiliary maintenance strategies, and achieve early warning and proactive operation and maintenance.

The comprehensive monitoring and diagnosis system for high-voltage cables based on wireless sensor networks consists of cable head temperature measurement device, power acquisition device, sheath circulation monitoring device, local monitoring device, and data acquisition terminal. The system can independently network with the robot; Capable of networking separately with mobile phones; Capable of independently networking with cloud platforms; Capable of independently networking with PMS2.0 system; At the same time, data collection terminals, cloud platforms, mobile phones, and robots can also be interconnected. Through different networking methods, mobile phones, robots, and PCs can all obtain data, analyze data, and export data.