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

A transmission device and micro-power technology, applied in signal transmission systems, electrical signal transmission systems, instruments, etc., can solve the problems of difficulty in checking lines, long distances between electric energy meters, time-consuming and labor-intensive problems, and achieve timely and effective monitoring, analysis, and operation Convenience and effective results

Inactive Publication Date: 2015-12-16
国网山东省电力公司聊城供电公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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 t

Method used

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

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Embodiment 1

[0020] This embodiment provides a reliable micro-power signal transmission device, such as figure 1 As shown, it includes a meter reading terminal 4 and a collector connected to the meter reading terminal 4. The collector includes a box body 1 and two DB9 male connectors 2 and 3 placed in the box body 1, RS232-RS485 converters 7 and 485 Shielded wire 5, two DB9 male connectors 2 and 3 are welded by cross-connection (2 to 3, 3 to 2, 5 to 5), and there is an installation opening on the box body 1, and one DB9 male connector 3 is embedded The installation port is fixedly connected to the box body 1 by screws and connected to the meter reading terminal 4 through the 485 shielded wire, the other DB9 male 2 is connected to one end of the RS232-RS485 converter 7, and the other end of the RS232-RS485 converter 7 is connected to the 485 One end of the shielded wire 5 is connected, and the other end of the 485 shielded wire 5 is placed outside the box body 1 .

[0021] RS232-RS485 conv...

Embodiment 2

[0026] A method for using a reliable micropower signal transmission device, comprising the following steps,

[0027] When performing 485 communication failure detection, connect the crocodile mouth insulated terminal to the wiring port of the meter, and the meter reading terminal records and displays the degree of the meter. table or 485 lines.

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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...

Claims

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Application Information

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IPC IPC(8): G08C19/00
Inventor 杨宏伟薛宗来刘永生李丹李冬冬袁红波周龙郭桂松马焕成
Owner 国网山东省电力公司聊城供电公司
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