A device using power line communication

Abstract

The present invention provides a device using power line communication. The fire wire is connected to the device using power line communication as a power supply input, and communicates cascaded with other devices using power line communication through a transmission line, which includes: a zero-crossing detection module, a voltage A detection module, a power module, a switch module and a control module, the control module is connected to the zero-crossing detection module, the voltage detection module and the switch module, and is used to control the switch module to adjust the signal voltage change in the transmission line according to the information to be sent; And it is used to obtain information according to the voltage variation of the voltage detection module. By adopting the technical scheme of the present invention, data communication through AC signals can be realized only by adding one transmission line, and the transmission line and the live wire can be arranged together during wiring, so as to realize safe and reliable long-distance data communication with a low-cost and simple circuit structure .

Description

technical field [0001] The invention relates to the field of power line transmission, in particular to a device using power line communication. Background technique [0002] With the development of information technology, the application of intelligence and remote communication in various occasions is gradually increasing, but at present, information communication generally adopts wired or wireless methods. The use of wireless transmission will generate electromagnetic radiation, which will cause damage to the human body, and due to the characteristics of wireless signals, it will cause signal attenuation when penetrating obstacles, which will cause problems such as information loss in signal transmission. [0003] In the way of wired transmission, such as UART, CAN, SPI, DALI, etc., in addition to the two power lines (VCC and GND), it is necessary to arrange another set of communication lines. In order to ensure the safety of electricity use, there must be a certain distan...

AI Technical Summary

Problems solved by technology

Using this method of transmission can avoid the need to lay out additional communication lines, but the cost of use is relatively high, and this method of loading signals on the power line through the carrier wave method needs to be improved due to the unstable power network environment.

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