Remote handheld terminal and its power line identification method

Abstract

The invention discloses a remote handheld terminal, which comprises: a signal capture interface, which is electrically connected to a power line, and collects the power line carrier signal; The power line carrier signal, after signal demodulation and decoding, outputs the phase line identification code information; the digital processing module, whose input circuit is connected to the output end of the signal processing module, receives the phase line identification code information to record the signal strength, and compares the different power lines The detected signal strength is compared, and the power line identification result is output. The invention introduces the power line carrier signal on the power line, collects and recognizes it by a remote hand-held terminal, and recognizes the power line through the difference of the power line carrier signal, has high operation efficiency, and improves the accuracy of recognition at the same time.

Description

technical field [0001] The invention relates to a power line identification technology in the electrical field, in particular to a remote hand-held terminal and a power line identification method thereof. Background technique [0002] In low-voltage power supply lines, overhead lines and cables are generally used to supply power from the transformer station area to residents and residential buildings. In the actual home line operation, due to urban construction and municipal planning, most of the home lines are installed in batches, and the span of time is relatively long. As a result, the user's electricity consumption information and retained files are confused, and the actual load customers in the transformer station area are inconsistent with the user information in the power marketing system. Thereby greatly affecting the assessment of the line loss of a single station area and the emergency repair and power outage operation. However, since most of the overhead lines ...

AI Technical Summary

Problems solved by technology

Due to the existence of common high-voltage cross-connection, common ground cross-connection, and common cable ditch cross-connection, traditional station area identification instruments that only use power carrier signals often cause misjudgment

[0005] 2) Unable to identify lines with long distance and large interference

The power carrier signal is a high-frequency signal with severe attenuation and cannot be transmitted over long distances, making traditional station area identifiers unable to identify users with long distances and large line interference

[0006] In summary, a single carrier or power frequency communication method cannot guarantee accurate identification

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