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Full-duplex communication method and device based on power line

A technology of a communication device and a communication method, which is applied in the field of communication, can solve problems such as low transmission rate and difficulty in realizing full-duplex communication, and achieve technical effects and improve channel utilization

Active Publication Date: 2013-01-30
BEIJING AIPUZHICHENG NETWORK TECH
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Problems solved by technology

[0008] The present invention provides a power line-based full-duplex communication method and device to at least solve the low transmission rate caused by using two consecutive cycles to represent a binary bit in the prior art, and it is difficult to realize full-duplex communication technical issues

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  • Full-duplex communication method and device based on power line
  • Full-duplex communication method and device based on power line
  • Full-duplex communication method and device based on power line

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Embodiment Construction

[0027] Hereinafter, the present invention will be described in detail with reference to the drawings and examples. It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other.

[0028] The embodiment of the present invention provides a preferred power line-based full-duplex communication method, such as image 3 shown, including the following steps:

[0029] Step S302: The first device transmits the first symbol to the second device through the zero-crossing distortion of two of the four zero-crossing points in the two consecutive periods of the waveform signal transmitted on the power line; for example, the Figure 4 The zero-crossing distortion of the two zero-crossing points in P1 and P3 transmits the first symbol.

[0030] Step S304: the first device receives the second symbol transmitted by the second device through the zero-crossing distortion of the other two zero-c...

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Abstract

The invention discloses a full-duplex communication method and device based on a power line. The method comprises the following steps that: a first device transmits a first code element to a second device through the zero-crossing distortion of two zero-crossing points (P1 and P3) in four zero-crossing points in waveform signals of two continuous periods transmitted on the power line; and the first device receives a second code element transmitted by a second device through the zero-crossing distortion of the other two zero-crossing points (P2, P4) in the four zero-crossing points in the waveform signals of the two continuous periods transmitted on the power line. According to the method and the device, the technical problems of low transmission rate and difficulty in realizing full-duplex communication caused by the representation of a binary bit through two continuous periods in the prior art are solved, the technical effect of full-duplex communication based on the power line is realized, and the channel utilization ratio of the power line is increased simultaneously.

Description

technical field [0001] The present invention relates to the communication field, in particular to a power line-based full-duplex communication method and device. Background technique [0002] WPLC is a digital half-duplex communication with the help of distribution network. Its basic principle is to define the small distortion of voltage signal or current signal as "0" or "1", and multiple different distortions are equivalent to "0" and "1". The continuation of is similar to "telegraphing" with the help of the power grid. Since the frequency band of the distorted signal of voltage or current is generally between 200-600Hz, the distortion can pass through the transformer, which is equivalent to "0" or "1" across the transformer, so that the entire 380V and 10KV lines can be connected as a communication medium. Specifically, the principle is as follows: [0003] The downlink voltage signal of power communication is to superimpose a signal near the zero-crossing point of the...

Claims

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Application Information

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IPC IPC(8): H04B3/54H04L5/14
Inventor 袁海波包仁山李抗英
Owner BEIJING AIPUZHICHENG NETWORK TECH
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