Power line carrier communication module

Abstract

The invention relates to the technology of communication modules and particularly discloses a power line carrier communication module comprising a central control circuit, a synchronous signal processing circuit, a signal receiving circuit, a signal emitting circuit, an external interface circuit, an external control circuit, and a power supply circuit for controlling a power supply, wherein the signal receiving circuit comprises a filtering unit, a voltage doubling unit for amplifying data signals by times, and a shaping process unit. In the power line carrier communication module provided by the invention, the signal receiving circuit can perform filtering, amplitude amplification by times, and shaping sequentially to the data signal loaded onto the power line through the filtering unit, the voltage doubling unit, and the shaping process unit respectively, so as to eliminate most of disturbing signals; then the data signal is input to the central control circuit, so that the influence to the detection and the demodulation of the central control circuit is reduced, and the power line carrier communication module has higher reliability and stability.

Description

technical field [0001] The invention relates to communication module technology, in particular to a power line carrier communication module. Background technique [0002] Power line carrier communication refers to the technology of high-speed transmission of analog or digital signals by means of carrier wave using existing power lines. Because power line carrier communication has the characteristics of stable and reliable information transmission, reasonable routing, simultaneous multiplexing of telecontrol signals, and no need for line investment, power line carrier communication technology, as an emerging communication technology, is gradually being used in various fields, such as: In smart home In the field, the power line carrier communication module is usually used to realize the communication between the control host and electrical equipment such as lamps and power switches. [0003] At present, the power line carrier communication module mainly includes a central con...

AI Technical Summary

Problems solved by technology

[0004] However, the signal receiving circuit of the power line carrier communication module in the prior art is mostly a simple filter circuit composed of resistors, capacitors, and inductors, which loads and obtains data signals on the power line and inputs them to the central control circuit after simple filtering. , which may cause the data signal input to the central control circuit to have more interference signals, which will affect the detection or demodulation of the central control circuit, thereby reducing the reliability and stability of the entire power line carrier communication module

Images