Reliable transmission device of micro-power signal and application of reliable transmission device

Abstract

The invention relates to a reliable transmission device of a micro-power signal and application of the reliable transmission device. The reliable transmission device comprises a meter reading terminal and an acquisition unit connected with the meter reading terminal, wherein the acquisition unit comprises a box body as well as two DB9 male connectors, RS232-RS485 converters and a 485 shielded line which are arranged in the box body and are connected in sequence; one DB9 male connector is connected with the meter reading terminal; and one end of the 485 shielded line is connected with an ammeter wiring port. By changing a traditional detection manner of measuring voltage and measuring on-off, 485 communication faults can be rapidly and effectively checked; and whether operation readings and operation conditions of each ammeter are normal or not is efficiently recorded and displayed through a program arranged in the meter reading terminal. The device is convenient to operate; the working efficiency is improved, and a power grid can be effectively monitored and analyzed in time; and the device has an accurate and reliable detection result and obvious effect, and is worthy of being greatly popularized.

Description

technical field [0001] The invention relates to a reliable micropower signal transmission device and its application, belonging to the technical field of electric power detection tools. Background technique [0002] Electricity consumption information collection has a wide range of applications in power grid planning, safe production, operation management, power consumption analysis, key user monitoring, abnormal power consumption detection, anti-stealing power analysis, load forecasting, and high-quality services. Actively carrying out the collection of electricity consumption information and striving to improve the success rate of collection can greatly reduce labor costs such as meter reading and charging, reduce the loss rate of low-voltage power grids, prevent electricity bill risks, and speed up electricity bill recovery, which has good social and economic benefits. [0003] For terminals with unsuccessful automatic collection, meter readers need to go to the site to m...

AI Technical Summary

Problems solved by technology

A concentrator needs to be connected to multiple meter boxes. When abnormalities occur in the collection of multiple electric energy meters distributed in different meter boxes under the concentrator, the staff need to remove the 485 wiring one by one, and use a multimeter to check the continuity of the signal lines one by one, which is time-consuming. strenuous

Especially in rural areas, the distance between the electric energy meters is far, and the laying of the 485 communication line requires the use of low-voltage poles, which brings difficulty to the line inspection work and takes a long time

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