A communication mode control method, system and air conditioning debugging device

Abstract

The invention discloses a communication mode control method and system. The method is applied to an air conditioner debugging device and comprises an upwards-pulling resistance circuit, a communication chip, a first communication interface and a second communication interface. According to the method, by means of the enabling end of the communication chip, the communication chip is controlled to be in the working state or the non-working state, and the communication mode of the debugging device is controlled into the required mode. When the communication chip is controlled to be in the working state, the communication mode adopted for the debugging device is the first communication mode provided by a first communication circuit formed by the communication chip, the upwards-pulling resistance circuit and the first communication interface. When the communication chip is controlled to be in the non-working state, the communication mode adopted for the debugging device is a second communication mode provided by a second communication circuit formed by the second communication interface and the upwards-pulling resistance circuit. It can be seen that when the communication mode control method and system are applied, the air conditioner debugging device can be compatible to various air conditioner units without changing the dial-up mode, use is convenient, and reliability is high.

Description

technical field [0001] The invention belongs to the technical field of switching control between different communication modes, and in particular relates to a communication mode control method, system and air conditioner debugging device. Background technique [0002] The current air-conditioning product controllers, such as the main board controller of the air-conditioning unit, will use different communication methods for communication due to various factors such as cost and different functional requirements. Among them, the communication method used is generally 485 communication. Or UART (Universal Asynchronous Receiver / Transmitter, Universal Asynchronous Receiver Transmitter) communication. [0003] In order to ensure that it is compatible with the communication method adopted by the controller of the air conditioner product, the debugging devices such as the air conditioner hand operator or display with unit debugging functions cannot be designed to only use a single c...

AI Technical Summary

Problems solved by technology

[0003] In order to ensure that it is compatible with the communication method adopted by the controller of the air conditioner product, the debugging devices such as the air conditioner hand operator or display with unit debugging functions cannot be designed to only use a single communication method. For example, for 485 communication and UART communication, they can be used separately Two debugging devices using different communication methods have been designed. This method has problems such as high design cost, high cost of use, and inconvenient portability. To solve this problem, a debugging device with two sets of communication circuits and communication interfaces has been developed at the same time. The debugging device uses the following method to control the communication mode: through dialing control between two sets of hardware circuits, the communication mode of the debugging device is controlled to the required communication mode

Because this method needs to change the communication mode by dialing the code, the operation is more troublesome, and the dialing code is easily invalid after a certain number of times

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