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Communication information sending method, communication host device and two-wire system power supply communication system

A sending method and a technology for communicating information, applied in the field of communication, can solve problems such as low power output, unsatisfactory communication scheme effect, and weak power supply capacity

Pending Publication Date: 2022-05-06
HEUVAN CHONGQING SCI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The advantage is that the circuit is simple and the anti-interference performance is good; the disadvantage is that the power supply capacity is weak, usually the maximum supply current of DALI is 250mA, and the power output is low
[0005] The effects of the above two communication schemes are not very ideal. Therefore, a method with simple circuit, good anti-interference performance, strong power supply capability and high communication rate is needed to realize power supply communication.

Method used

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  • Communication information sending method, communication host device and two-wire system power supply communication system
  • Communication information sending method, communication host device and two-wire system power supply communication system
  • Communication information sending method, communication host device and two-wire system power supply communication system

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Embodiment approach

[0056] In one embodiment, figure 2 The communication waveform shown can be the waveform when no data is sent (it can also be regarded as always sending the same coded information such as 1 or 0), image 3 as well as Figure 4 The waveform shown is the waveform when sending data, such as image 3 , Figure 4 DAT1 in can correspond to code 1, and DAT2 can correspond to code 0 (or vice versa). in, image 3 The communication waveform shown can only send data of the same type (0 or 1) at the same time (time t2), while Figure 4 The communication waveform shown can only send the same type of data (0 or 1) at the same time, and can also send two types of data (such as 1 and 0). If two types of data are sent, U3 corresponds to code 1, and U2 corresponds to code 0 (or vice versa). If one type of data is sent, U3 corresponds to code 1, and U2 does not send data (you can also Conversely), or, it can also be that the waveform with the notch to the left corresponds to code 1, and th...

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Abstract

The invention relates to a communication information sending method, a communication host device and a two-wire system power supply communication system, and belongs to the technical field of communication. The method comprises the steps that a first voltage signal and a second voltage signal are transmitted on a two-wire system line in a time-division and time-division mode, the first voltage signal is used for transmitting communication data, and the second voltage signal is used for transmitting electric power; when the communication data is transmitted, the communication data is transmitted by changing the waveform of a first voltage signal on the two-wire system circuit, the first voltage signal and the second voltage signal are voltage signals in different directions, and the first voltage signal and the second voltage signal alternate according to a preset time period. The first voltage signal and the second voltage signal on the two-wire system are mutually independent in transmission and do not interfere with each other, so that the method has the advantages of simplicity and convenience in operation, line simplification, high power supply capability, high anti-interference capability, high communication reliability and the like.

Description

technical field [0001] The application belongs to the technical field of communication, and in particular relates to a communication information sending method, a communication host device and a two-wire power supply communication system. Background technique [0002] At present, the two-wire scheme that combines the power supply line and the signal line into one mainly includes two schemes based on carrier communication and DC pulse communication. [0003] The principle of carrier-based communication is to communicate with devices based on high-frequency carrier while supplying power through AC or DC power, so as to realize power supply and signal multiplexing, which represents Power Line Communication (PLC). The advantages are high transmission power and high communication rate; the disadvantages are complex circuits, high cost, no direction of signal propagation, poor anti-interference performance, and an isolator needs to be set to prevent instability or other signals fr...

Claims

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Application Information

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IPC IPC(8): H04B3/54
CPCH04B3/54
Inventor 刘耀文沙玉峰何金立
Owner HEUVAN CHONGQING SCI TECH CO LTD