A transmission signal receiving method and device

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 ...

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

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