Indoor wireless remote control method applied to signal source

Abstract

The invention provides an indoor wireless remote control method applied to a signal source, adopting an own USB interface of an industrial personal computer for control of a Bluetooth module, performing wireless communication with an upper computer, and comprising a Bluetooth module, a power switching circuit, a Bluetooth reset circuit, a working state control circuit, a USB control circuit and a SPI control circuit. The power switching circuit is used for providing needed power for the Bluetooth module, the Bluetooth reset circuit is used for automatically resetting a Bluetooth device when power supply of instruments is interrupted, a SPI interface is used for upgrading and downloading a Bluetooth control program, and the USB control circuit and the working state control circuit complete control of the signal source to the Bluetooth module. Firstly, the Bluetooth module performs initializing setting, then, inquires other surrounding Bluetooth devices, performs communication after connecting successfully, and disconnects after finishing communication. The method based on the invention is convenient for organizing an indoor distributed automatic test system, and may be a beneficial supplement for a wireless network.

Description

technical field [0001] The invention relates to the field of computer applications, in particular to an indoor wireless remote control method applied to a signal source. Background technique [0002] With the rapid development of modern test technology, the communication method of the traditional test system using cables for information transmission is far from meeting the requirements of data interaction, nor can it meet the needs of many special workplaces. [0003] In some working environments, cumbersome wiring will bring a lot of inconvenience. At the same time, for the decentralized measurement and control system, because the points are scattered, the long-distance line laying and maintenance require a high cost. In order to solve these problems, information transmission should be carried out in a wireless way. So looking for a short-distance wireless transmission technology to solve the on-site problems of the test system has become an urgent need. [0004] The use ...

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Problems solved by technology

[0007] (1) For the distributed measurement and control system site, each instrument may be scattered in a large range, the wiring is more complicated, and the laying and maintenance of remote lines require a high cost;

[0008] (2) For the network switch, it is not only large in size but also consumes a lot of power. There are big troubles in terms of transportation and power supply. May cause instability when testing

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