Multi-channel communication sharing device and method

Abstract

The invention discloses a multi-channel communication sharing device and a multi-channel communication sharing method. The device comprises a RS485 interface, a UART interface, a WIFI interface and afirst signal control isolation unit, wherein the output end of the RS485 interface is connected with the first input end of the first signal control isolation unit, the output end of the UART interface is connected with the second input end of the first signal control isolation unit, and the output end of the first signal control isolation unit is connected with the input end of the WIFI interface; a forwards arranged diode is connected between the first input end and the output end of the first signal control isolation unit is series, and a forwards arranged diode is connected between the second input end and the output end of the first signal control isolation unit. The method uses the device for sharing a communication signal. Compared with the prior art, the device and the method can connect the different interfaces in parallel, meets the requirement of using a plurality of terminals using different communication interfaces in parallel, also ensures the conversion efficiency of thecommunication signal, and is effectively reduced in cost investment.

Description

technical field [0001] The present invention relates to the technical field of data communication interface, more specifically, the present invention is a multi-channel communication sharing device and method. Background technique [0002] There are various communication methods at present, and various communication interfaces based on the same protocol emerge in endlessly, and multiple terminals using different communication interfaces based on the same protocol sometimes need to be used in parallel, especially in industrial communication. This phenomenon is more common; However, due to mutual interference and different electrical characteristics between the interfaces, various interfaces cannot be directly connected in parallel, which requires a communication signal control conversion device between various interfaces to ensure reliable signal transmission, non-interference with each other, and corresponding The interface electrical characteristics match. [0003] At pres...

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Problems solved by technology

[0004] (1) Manual switching: use mechanical switches or electronic switches. Although the cost is low, it must rely on manual operation, which has problems such as low work efficiency, error-prone and even burnt interfaces.

[0005] (2) Automatic switching of program control: Although this method has the advantages of high efficiency and less error-prone, it is costly and difficult to expand new interfaces

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