AC clipping coding communication system, control system using AC clipping coding communication technology

A technology of AC clipping and coding communication, which is applied in the field of power line communication, can solve the problems of low speed, only one-way transmission, and high cost, and achieve the effect of strong anti-interference ability, strong anti-interference ability and high reliability

Active Publication Date: 2019-01-15
GUANGZHOU YUCHUANG INTELLIGENT TECH CO LTD
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  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Its main disadvantage: high cost
Its advantages are strong anti-interference ability, simple principle, and low cost; its disadvantage is that the coding rules are limited by the fixed delay standard length and fixed duty cycle value, so it can only be transmitted in one direction, and the rate is low

Method used

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  • AC clipping coding communication system, control system using AC clipping coding communication technology
  • AC clipping coding communication system, control system using AC clipping coding communication technology
  • AC clipping coding communication system, control system using AC clipping coding communication technology

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Embodiment Construction

[0042] The AC clipping coding communication system of the present invention is as Figure 1 to Figure 13As shown, the AC clipping coding communication system uses the real-time zero-crossing point of the AC as the time reference to clip the edges of one or more half-wave cycles of the AC in the AC main circuit, and through clipping, the AC main circuit in the half-wave period is clipped. The on-off control with a preset duration of T is implemented in the wave cycle; in the AC branch, a coded level pulse signal is loaded during each clipping period, and the coded level pulse signal is used for equipment communication in the AC circuit or Device control, its data length is one or more bits.

[0043] During each clipping period, a coded signal transceiver module or a device containing a coded signal transceiver module in the AC loop is used to load a coded level pulse signal in the loop, and the coded signal transceiver module is also used for each clipping Receive the encoding...

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Abstract

The invention provides AC clipping coding communication technology. In an AC trunk, clipping is carried out on edges of one or more AC half wave periods with a real-time zero crossing point of AC as time reference, so that on-off control is executed on the AC trunk for a preset duration within the half wave period by the chipping; and in an AC branch, a coding level pulse signal is loaded during each chipping, the coding level pulse signal is applied to equipment communication or equipment control in an AC circuit, and the data length of the coding level pulse signal is one or more bits. According to the AC clipping coding communication technology provided by the invention, data communication between electrical equipment (particularly lighting equipment) of an AC power supply circuit is realized by the existing AC power supply line on the premise of requiring no additional wiring, and an intelligent control system with high reliability and flexible functions can be established accordingly and can be used as the technical foundation of power line communication of the Internet of things.

Description

technical field [0001] The present invention relates to the technical field of power line communication, specifically, an AC clipping coding communication system based on the power line communication technology to monitor and control electrical equipment to realize the Internet of Things architecture, and a control system using the AC clipping coding communication technology. Background technique [0002] In the existing civil low-voltage power line communication and control technology, two methods are mainly used: [0003] 1. Through the higher carrier signal (100K-30M), the user data is modulated by modulation technology at the sending end, and then transmitted on the power line; at the receiving end, the modulated signal is first filtered out, and then demodulated The original communication signal can be obtained. This technology has developed rapidly, from the early single-carrier BPSK (binary phase shift keying) modulation technology to OFDM (orthogonal frequency divis...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B3/54
CPCH04B3/542H04B3/544
Inventor 王海强
Owner GUANGZHOU YUCHUANG INTELLIGENT TECH CO LTD
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