Research On The Control System For Rat Movement Behavior Based On BCI Technology

Bio-electronic technology is based on biology and microelectronics technology, it reveals the biological sense and the law of EEG. Through processing of biological signals, we can obtain intuitive information and set up brain model for consciousness, then achieve the aim of control animal's behavior and sense. Animal robot is a branch of bio-electronic technology, it is guided by the theory of BCI technology, uses microelectronic technology to control animal's movement behavior. The research of animal robot will solve the problems of electromechanical robot can't work in the complex natural environment, will also bring new development for medical, such as the rehabilitation of the disabled.From the perspective of animal robot, chooses SD rat as the research object, guided by the theory of BCI technology, has a in-depth study in animal control. Studying mainly from the following aspects:1. Through researching the development and current situation of animal robot and animal control, analyzing some difficulties and limitations faced by this field, provided research ideas for the subject.2. From the animal control, researched the basic concepts and basic structure of BCI, studied the technical characteristics of BCI system and the encephalic region of controlling animal movement.3. Developed a control system to deliver stimuli into the rat brain through a wireless micro-stimulator for animal movement behavior control. In the system, an integrated PC control program is developed by Visual Basic 6.0, the hardware system is developed base on C8051F320 and C8051F410 microprocessor. The control command is sent out from PC control program, then the command is transmitted to the controller which is carried on the rat's back by wireless transceiver, then the command is converted to voltage or current stimuli, then the stimulation pulses are delivered into the nucleus of rat nervous system through microelectrode to control the rat behavior. 4. Combined the physiological characteristics of rat, researched the training models for rat. Proposed the nerve stimulation as the basic mean for animal control, rat movement behavior training experiments and rat movement behavior control experiments for the system.5. The system was used in rat behavior control experiments, the results indicated that the system worked stably, and it could control rat movement behavior accurately. In addition, analyzed the experimental results, gave the concluding work and the further research direction for the animal control.