Alternating current clipping pulse coding control technology

Abstract

The invention provides an alternating current clipping pulse coding control method. An alternating current bilateral control part is used for carrying out various on-off controls on a front edge and an back edge of a positive half wave and a negative half wave of an alternating current according to the requirements of a clipping pulse coding rule, and valid combination codes of alternating current half wave clipping pulse output are formed so as to achieve communication and control among alternating current power supply return circuit devices. According to the alternating current clipping pulse coding control method, due to the fact that the alternating current is used as a controllable signal source, influences of high-frequency interference of electric power environment on system reliability are avoided and manufacture cost of a system is reduced. The alternating current clipping pulse coding control method is mainly applied to the condition that under the premise that extra wiring is not added, intelligent control and management of the devices in a return circuit are achieved through an existing alternating current power supply circuit.

Description

technical field [0001] The invention relates to the technical field of power line communication, in particular to the control of electrical equipment based on power line communication and the basic control field of establishing the Internet of Things by using the power line communication technology. Background technique [0002] In the existing civil power line communication and control technology, the power line is mainly used as the transmission medium, and the modulated high-frequency signal is transmitted through it, so as to realize the communication and control technology of the power line equipment. The main representative of this technology is the United States. X-10 technology and its improved system. However, this technology has been difficult to obtain good communication reliability and system stability guarantee in China's complex civil power environment, and the communication speed is slow, the coding rules are single, and it is difficult to establish an efficie...

AI Technical Summary

Problems solved by technology

However, this technology has been difficult to obtain good communication reliability and system stability guarantee in China's complex civil power environment, and the communication speed is slow, the coding rules are single, and it is difficult to establish an efficient control network

If the output power of the power carrier is increased, it is easy to cause high-frequency radiation through the antenna of the power line and cause electromagnetic environmental pollution. At the same time, the communication efficiency is also reduced.

[0003] The AC half-wave clipping technology is usually only used for the dimming function of lighting fixtures. Its principle is to output a single continuous clipping pulse on the front and back edges, and directly dim the light source by adjusting its duty cycle. However, this technology Not intended for communication and control of AC power circuits

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