Power supply cable breakage monitoring and alarm device based on LoRa technology

Abstract

The invention discloses a power supply cable breakage monitoring and alarm device. The device, based on the LoRa communication technology, can realize cable breakage monitoring and alarm under the electricity or no electricity condition, and is also suitable for the situation where a cable has multiple branches. The device is based on LoRa wireless communication technology; a distribution box is internally equipped with a cable monitoring and alarm terminal having a LoRa module; and the tail end of a line is provided with a tail end terminal having a LoRa module. The cable monitoring and alarm terminal is communicated whit the tail end terminal regularly, and receives the voltage value of the tail end of the line detected by the tail end terminal; and if the communication is realized successfully, and the voltage values obtained consecutively for many times are equal to 0 ( when the cable has no electricity, the cable monitoring and alarm terminal applies an AC small voltage to the cable, wherein the voltage is safe and doesn't enable a load to work), the cable monitoring and alarm terminal judges the cable is broke, and gives a cable breakage alarm.

Description

technical field [0001] The invention is a device for monitoring and alarming power supply cable disconnection. The device is based on LoRa communication technology, which can realize disconnection monitoring and alarming when the cable has power or no power, and is also applicable to the situation where there are multiple branches in the cable. . Background technique [0002] Since the cable core is generally made of copper, it is often stolen, especially in remote urban peripheral areas, where cables are more likely to be stolen. A measure for monitoring cable theft is to detect if the cable has been cut (i.e. broken). [0003] Brutal construction in urban construction often leads to the digging of cables. [0004] Sometimes the cable has electricity, sometimes it has no electricity (for example, the street light cable has no electricity during the day and has electricity at night), so the cable monitoring and alarm device should adapt to both situations of electricity an...

AI Technical Summary

Problems solved by technology

[0014] This device solves the problem of instability of the current cable disconnection monitoring and alarm device. The cable can be used with or without power, and it also solves the problem that the cable has multiple branches and cannot be used.

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