| Motion control of animals is focus of research subjects these days. It is developing rapidly by the combination of advanced computer technology and communication technology and biomedzinische technik. The research of communication technology is an important research content of the control of animal movement. Today's communication technology, various new technology after another, it is very important to practical relevance for looking for a data transmission and efficient anti-jamming means of communication of animal movement and behavior control, control of animal movement to go from research.Based on the above background, A remote micro-stimulates system that control rat is designed and implemented based on C8051F410 and nRF905, and the actual performance of the communication verification by both hardware and software. That what to do is as the following:(1) Buiding the platform of the hardware circuit. the system mainly consists of the following parts:control platform with based on PC,transceiver,stimulator. The control command is transmitted from control software by wireless transceiver and is received by stimulator which sends stimulation pulses to the rat brain to control the rat behavior. The stimulation pulse of amplitude can be regulated and it is easy to set the proper stimulation parameters for different behavior controls. Moreover, the system is small and light as a result of using SMT components. The test shows that the system runs steadily and has a good anti-interference ability.(2) According to the actual inspection of the system, to identify shortcomings in hardware, provide innovative ways of both software and hardware.(3) Achieve frequency hopping communication. To further improve the ability of anti-jamming, frequency hopping is also applied to improve the reliability of wireless communication, and designed of frequency-hopping code. Simulating the Frequency-hopping communication by MatlAB. After the good results obtained, frequency hopping is designed by software programming. Experimental results show that the anti-jamming capability of frequency hopping is better and higher stability of the system.(4) To enhance performance of the system for anti-jamming ability, Adaptive Frequency Hopping is also applied, according to algorithm kernel of the Bluetooth model, design the Adaptive Frequency Hopping Algorithm based on nRF905, Software flow chart is given too, comparating performance according to error rate, the anti-jamming capability of adaptive frequency hopping is better and it is clearly to enhance the stability of the system. |
