Power supply cable breakage monitoring and alarm device based on LoRa technology
A technology for power supply cables and cables, applied in the direction of measuring devices, alarms, measuring electricity, etc., can solve the problems of unstable cable disconnection monitoring and alarm devices, unusable multi-branch cables, etc., to increase stability and simplify judgment basis. Effect
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[0032] Such as figure 1 , This device is based on the LoRa wireless communication technology. The "cable monitoring alarm terminal" containing the LoRa module is installed in the distribution box, and the "terminal terminal" containing the LoRa module is installed at the end of the line. The cable monitoring alarm terminal communicates with the end terminal regularly, and receives the voltage value of the end of the line detected by the end terminal. If the communication is successful, and the voltage value is equal to 0 (when the cable has no power, the cable monitoring alarm terminal applies a small AC voltage to the cable). If the voltage is safe and does not cause the load to work), the cable is considered to be disconnected and a cable disconnection alarm is issued.
[0033] The end terminal contains LoRa communication module, battery and charge and discharge control module, voltage measurement module, and MCU. The MCU collects the end voltage of the line through the voltage ...
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