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A transmission signal receiving method and device

A technology for transmitting signals and receiving methods, which is applied in the electronic field and can solve problems such as π phase and demodulation errors, so as to avoid decoding errors or failure to decode, and improve communication efficiency

Active Publication Date: 2021-10-22
TENDYRON CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Power line carrier communication is a communication method in which high-frequency carrier signals transmit information through high-voltage or low-voltage power lines. At present, the modulation method commonly used in power line carrier communication is BPSK (Binary Phase Shift Keying, binary phase shift keying). However, the power grid passes through different Network nodes, the phase of the carrier may be reversed, for example, 0 phase becomes π phase, or, π phase becomes 0 phase, then when using BPSK and demodulation, the obtained digital information will change from "0" to " 1" or "1" becomes "0", causing demodulation errors

Method used

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  • A transmission signal receiving method and device
  • A transmission signal receiving method and device
  • A transmission signal receiving method and device

Examples

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Embodiment 1

[0026] This embodiment provides a transmission signal receiving method, which can be applied in the field of power line communication. figure 1 It is a flow chart of an optional transmission signal receiving method in this embodiment.

[0027] Such as figure 1 As shown, the transmission signal receiving method mainly includes the following steps (step 1 to step 10):

[0028] Step 1, continuously receive transmission signals, and judge whether the first preset number of first square wave signals are continuously received, if yes, go to step 2, if not, go to step 10; wherein, the first square wave signal is generated by the high voltage It is composed of level signal and low level signal, and there is only one level transition.

[0029] In this embodiment, the transmission signal is a square wave signal composed of a high level signal and a low level signal, the first square wave signal is a square wave signal with only one level transition, the high level signal and the low l...

Embodiment 2

[0053] This embodiment provides a transmission signal receiving device 200, which is in one-to-one correspondence with the transmission signal receiving method in Embodiment 1, and will not be repeated here, but only briefly explained. In the optional implementation of this embodiment In the manner, for the specific operations performed by each module in the transmission signal receiving device 200, reference may be made to Embodiment 1.

[0054]In this embodiment, the transmission signal receiving device 200 may be included in any communication terminal in the power line communication, for example, a camera, a PC, a server, etc., or may be an independent device.

[0055] image 3 It is a transmission signal receiving device 200 of this embodiment, including: a signal receiving module 201, a current signal transmission cycle calculation module 202, a square wave signal judging module 203 and a decoding module 204, wherein,

[0056] The signal receiving module 201 is used to c...

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Abstract

The present invention provides a transmission signal receiving method and device, comprising: continuously receiving the transmission signal, judging whether the first preset number of first square wave signals are received, if not, ending the reception, and if so, calculating the current signal transmission period ;Judge whether the second square wave signal is received, if not, end the reception, if it judges whether the second preset number of second square wave signals are received, if not, end the reception, if so, judge whether the third wave signal is received , if no, end receiving, if yes, judge whether the third preset number of third-party wave signals is received, if not, end receiving, if yes, if the second square wave signal starts at low level and ends at high level, it is judged as positive In the phase receiving state, decode the data after the third wave signal according to the first decoding rule; if the waveform of the second square wave signal starts at a high level and ends at a low level, it is judged as an inverse receiving state, and according to the second decoding rule The data following the third wave signal is decoded.

Description

technical field [0001] The invention relates to the field of electronic technology, in particular to a transmission signal receiving method and equipment. Background technique [0002] Power line carrier communication is a communication method in which high-frequency carrier signals transmit information through high-voltage or low-voltage power lines. At present, the modulation method commonly used in power line carrier communication is BPSK (Binary Phase Shift Keying, binary phase shift keying). However, the power grid passes through different Network nodes, the phase of the carrier may be reversed, for example, 0 phase becomes π phase, or, π phase becomes 0 phase, then when using BPSK and demodulation, the obtained digital information will change from "0" to " 1" or "1" becomes "0", thus causing demodulation errors. [0003] Therefore, in the technical field, there is an urgent need for a method and device for receiving a transmission signal that can adaptively determine ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B3/54
CPCH04B3/54
Inventor 李东声
Owner TENDYRON CORP
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