Design And Implementation Of Electrical Stimulation And Electrical Signal Collector Used In Animal Experiment

Bio-stimulation and bio-signal acquisition technology has broad applicationprospects in bionic, energy, medicine, information control and other fields. With the rapiddevelopment of electronic technology and computer communication technology, thedesign of embedded systems tend to be more miniaturization, digitization, automation andwireless. This paper to design electrical stimulation and electrical collector for animalstudies, so to achieve low power, portable, wireless, sealable requirements.First, to plan the overall system. This paper introduces several key techniques that thesystem design to adopt. In the system design to meet the low power requirements, how toachieve low power consumption for embedded systems were introduced. Analysis andcomparison of several short-range wireless communications technology, the system useradio frequency technology to achieve wireless data transmission. According to thetechnical specifications and performance, select the main chips and determine the overallscheme of the system design.Secondly, to design the wireless transmission of electrical stimulation command andelectrical collection command. Design the PC control interface which includes theelectrical stimulation instruction and the electrical signal collection instruction. Forwireless transmission hardware circuit design and software implementation. Wireless datatransmission system for the commissioning, able to transmit the correct electricalstimulation command and electrical signal gathering information.Finally, with ADuC847as the core controller, to design the electrical stimulationmodule and the electrical signal acquisition module. Hardware is mainly to design ofmicroprocessor control module, power circuit, drive circuit for electrical stimulation,signal collection and storage circuit. Control software for the stimulus pulse parameterprogramming, transplant the Petit Fatfs file system. Electrical stimulation, electrical signal acquisitionand storage for the test, can achieve expected target.