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Power frequency electric power data transfer system

A power data and transmission system technology, applied in the direction of electrical signal transmission systems, signal transmission systems, instruments, etc., can solve the problems of large signal attenuation, long communication time, large construction volume, etc., and achieve the improvement of communication signal-to-noise ratio and transmission time Reduction, easy installation effect

Inactive Publication Date: 2008-04-30
深圳市傲立信息技术有限公司
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AI Technical Summary

Problems solved by technology

[0009] The technical problem to be solved by the present invention is to provide a power frequency power data transmission system, which solves the problems of large signal attenuation, heavy construction work of secondary substation reconstruction and long communication time in the existing power frequency power data transmission system

Method used

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  • Power frequency electric power data transfer system
  • Power frequency electric power data transfer system
  • Power frequency electric power data transfer system

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Embodiment Construction

[0028] see Figure 5 , Figure 5 It is a schematic diagram of a power frequency power data transmission system of the present invention.

[0029] The power frequency power data transmission system of the present invention includes a power data center 201 , a concentrator 202 and a collection module 203 located near the transformer. The power data center and the collection module perform data communication through the concentrator.

[0030] The power data center 201 and the collection module 203 perform data communication through the concentrator 20 . Both the concentrator 202 and the acquisition module 203 are powered by the same distribution transformer. The power data center 201 sends commands to the concentrator 202 through GPRS, dial-up, GSM or other methods, and the concentrator 202 generates a signal to the acquisition module 203 according to the command, and the acquisition module 203 receives the concentrator 202 After sending the feedback signal to the concentrato...

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Abstract

The invention discloses a power frequency power data transmission system, the system includes a collection module and a power data center, the power frequency power data transmission system also includes a concentrator located near a transformer, the power data center and the collection module Data communication is performed through the concentrator, and the concentrator and the acquisition module are connected to the same distribution transformer. The power frequency power data transmission system of the present invention adopts a concentrator, cancels the main station in the power frequency power data transmission system across the transformer, does not need to transform the secondary substation, reduces engineering difficulty, reduces investment, and The signal does not need to be transmitted across the transformer for a long distance, and the attenuation of the signal is greatly reduced, which improves the signal-to-noise ratio of the system's communication and ensures the stability and reliability of the system's communication.

Description

【Technical field】 [0001] The invention relates to a power data transmission system, in particular to a power frequency power data transmission system that does not cross a transformer. 【Background technique】 [0002] Currently, data can be transmitted using power lines as a medium. When using the power line as the medium to transmit data, it can be realized through the power frequency power data transmission system. The power frequency power data transmission system expresses information by making the power 50Hz waveform weakly distorted near its voltage zero crossing point, and the information can pass through the distribution transformer. for data transfer. [0003] see below figure 1 , illustrating the existing cross-transformer power frequency power data transmission system. The cross-transformer power frequency power data transmission system includes a master station 101 , a 10kV / 0.4kV modulation transformer 102 , a current transformer 103 , an acquisition module 104...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G08C19/00G08C19/02
Inventor 吴斌
Owner 深圳市傲立信息技术有限公司
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