Communication system and communication method based on power circuit

A technology for power lines and communication systems, applied in distribution line transmission systems and other directions, can solve problems such as limitations, and achieve the effect of low cost, low power, and long distance

Inactive Publication Date: 2014-11-26
宋莉莉
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This technology is a broadband communication technology, and its communication bit error rate, reliability, communication distance, application cost, etc. are affected by the load characteristics of the power line, and are subject to certain restrictions in practical applications.

Method used

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  • Communication system and communication method based on power circuit
  • Communication system and communication method based on power circuit
  • Communication system and communication method based on power circuit

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Embodiment Construction

[0030]In order to understand the above-mentioned purpose, features and advantages of the present invention more clearly, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that, in the case of no conflict, the embodiments of the present application and the features in the embodiments can be combined with each other.

[0031] In the following description, many specific details are set forth in order to fully understand the present invention, but the present invention can also be implemented in other ways different from those described here, therefore, the present invention is not limited to the specific embodiments disclosed below limit.

[0032] figure 1 A block diagram of a power line based communication system according to one embodiment of the present invention is shown.

[0033] Such as figure 1 As shown, the communication system 100 based on a power line according to...

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PUM

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Abstract

The invention provides a communication system based on a power circuit. The communication system comprises a state judging module, a direct-current power supply module, a first signal generating device and a first signal receiving device, wherein the state judging module is used for judging whether the power circuit is in an alternating-current power supply state; the direct-current power supply module is arranged at the first end of the power circuit, is connected between a live wire and a null line of the power circuit, and is used for supplying power to the power circuit when the power circuit is not in the alternating-current power supply state according to judgment of the state judging module; the first signal generating device is arranged at the second end of the power circuit, and is used for generating a first communication signal by using the direct-current voltage of the direct-current power supply module; and the first signal receiving device is arranged at the first end, and is used for detecting the first communication signal to acquire corresponding communication information. The invention further provides a communication method based on the power circuit. Through the technical scheme of the invention, carrier wave communication can be realized through a low-voltage narrowband under the situation of not performing alternating-current power supply through the power circuit.

Description

technical field [0001] The present invention relates to the technical field of power line carrier communication, in particular to a power line based communication system and a power line based communication method. Background technique [0002] At present, data communication applications on ordinary low-voltage power supply lines are mostly implemented using power line carrier technology, that is, PLC (Programmable Logic Controller, programmable logic controller) communication technology. This technology is a broadband communication technology, and its communication bit error rate, reliability, communication distance, application cost, etc. are affected by the load characteristics of the power line, and are subject to certain restrictions in practical applications. [0003] Therefore, there is a need for a new narrowband communication technology based on power lines, which can realize carrier communication through low-voltage narrowband when the power lines do not provide AC...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B3/54
Inventor 杨振兴杨立君栾淑利
Owner 宋莉莉
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