Power line signal transmission method, device and transmission electric equipment

Abstract

The present application relates to a power line signal transmission method, device and transmission electrical equipment. The method includes: receiving a communication signal and a power supply voltage; coupling the power supply voltage and the communication signal to obtain a carrier signal; and transmitting the carrier signal to the controlled side through a power line. By coupling the power supply voltage on the control side with the communication signal, the carrier signal is obtained, and then the carrier signal is transmitted to the controlled side through the power line carrier to realize the power line carrier transmission. The communication line and the power line can be integrated, thereby reducing The number of connection lines between the control side and the controlled side reduces the connection complexity and improves the connection convenience between the control side and the controlled side.

Description

technical field [0001] The present application relates to the technical field of power communication, in particular to a power line signal transmission method, device and transmission electrical equipment. Background technique [0002] With the development of power communication technology, AC permanent magnet synchronous motors are often controlled by servo drives in automation equipment such as industrial robots and CNC machining centers. Servo drives are an important part of modern motion control. The connection between servo drives has always been divided into communication lines. And power lines, power lines can be classified according to the objects that provide energy support: strong electric power lines and low-voltage or low-power consumption power lines, communication lines can also be divided into multiple types according to different communication methods. In different application environments, the types and quantities of communication lines and power lines requi...

AI Technical Summary

Problems solved by technology

[0003] However, in the traditional connection method between servo drives, pulse communication requires 4 communication lines, 4 IO lines and 2 power lines, analog voltage communication requires 2 communication lines, 4 IO lines and 2 power lines, RS485 Communication requires 2 communication lines and 2 power lines. Different communication methods use a wide variety of wires, and the connection is complicated, and there are problems such as low connection convenience.

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