Zero line and live wire intelligent identification device and identification method

Abstract

The invention discloses a zero line and live wire intelligent identification device, which comprises a concentrator, a communication module and a microcontroller, wherein a positive electrode end of the concentrator is electrically connected with a secondary coil L point of a transformer, a secondary coil N point of the transformer is electrically connected with a grounding end of the concentrator, and the concentrator is electrically connected with the microcontroller by means of the communication module; and the concentrator comprises a carrier chip and a zero-crossing detection circuit, a detection end of the zero-crossing detection circuit is electrically connected with a receiving end of the carrier chip, an input positive end of the zero-crossing detection circuit is electrically connected with the secondary coil L point of the transformer, and an input negative end of the zero-crossing detection circuit is electrically connected with the secondary coil N point of the transformer. According to the zero line and live wire intelligent identification device, the zero-crossing detection circuit is designed to detect the problem of zero line and live wire reverse connection identification, a high-speed dual-mode communication mode is adopted, communication blind areas originally existing in the two communication modes are avoided, and stable and high-speed operation of the system is guaranteed.

Description

Technical field [0001] The invention relates to the technical field of power detection and communication, and in particular to a zero-fire line intelligent identification device and identification method. Background technique [0002] At present, the rate of micro-power wireless module in China is 10K. In the face of the deepening applications implemented by the State Grid and China Southern Power Grid: convergent meter reading, concurrent meter reading, 5-minute curve, 15-minute curve, etc., the speed is far from meeting the demand, narrowband carrier It can't meet the demand of curve collection. In low-voltage users, the control switch is mainly used to control the live wire. If the incoming live wire of the meter is reversely connected to the neutral wire, the control switch of the electrical equipment will control the neutral wire. Even when the control switch is off, the interior of the electrical appliance is still live, which brings great safety hazards. Summary of the ...

AI Technical Summary

Problems solved by technology

If the live wire and the neutral wire of the incoming wire of the meter are reversely connected, it will cause the control switch of the electrical equipment to control the neutral wire

Even when the control switch is turned off, the electrical appliances are still charged, which brings great potential safety hazards

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