In The Application Of Agricultural Expert Systembased On The Bluetooth Wireless Technology

Bluetooth technology, as a short-range wireless communication technology, still has a broad application prospects such as in mobile phone and PC and other devices. Being a global standard, open wireless communication technology, it could be used in digital devices and the PC alternative to the cable connection between the digital data and devices, voice communication. SIG group was formally established since 1998 ,now joining more than 200 members, the application of more than 6000 members, covering almost all walks of life around the world.Expert system, is a kind of professional knowledge and professional experience intelligent systems. It based on one or more experts in a particular field of expertise, simulate the human brain to a particular deal with complex issues and make the final decision-making process of a set of AI technologies. Agricultural expert system is a sub-field of expert systems. No matter in which field, data collection is the first problems which have to be faced and solved, agricultural expert system is still no exception.In this artical, we design a set of wireless data transmission system based on Bluetooth technology which can send and receive data. Fisrtly, we introduces the background and status of Bluetooth technology ,and then compared it with other wireless technologies. Secondly, analysis of the Bluetooth protocol architecture . In the part of SCM data collection, we take a single bus temperature sensor DS18S20 as example, using C language to realize the capabilities of real-time field data collection. In the part of Bluetooth wireless transmission, we realize the typical applications of Bluetooth devices using the Java ME, and then relaize the function of the wireless data transmission function; Applicated the design of the Bluetooth hardware / software interface in microcontroller and implemented a wireless data transmission between mobile phones Bluetooth data transmission system, and finally realized the agricultural expert system reads the data target.In the actual development, we use C programming language to control the Bluetooth module GC-02, and take GC-02 as a transit point to wireless transit the data to the Bluetooth mobile phone / Bluetooth PC ,and finally realize the goal of the data reading . After completed the part of the data read , the Bluetooth mobile phone / Bluetooth PC will simulation the experts to solve the problem throught the analysis and processing, to finalize the solution.This article provides the Bluetooth software and hardware interface program and the data transmission module, not only for agricultural expert systems, but also can be used as general-purpose wireless communication module in variety of places.