基于Android的超声刺激器的控制系统设计与实现

Design and Implementation of the Control System for Ultrasonic Stimulator Based on Android

超声刺激器是研究神经调制的必备工具,然而目前大多数的超声刺激器的软件控制部分皆由PC端完成,设备体积大且无法满足操作人员远距离进行控制的需求。基于此,本文设计了一款基于Android平台的超声刺激器控制系统,系统软件部分通过手机蓝牙端口与刺激器通信,可将手机端输入的参数信息发送至刺激器的现场可编程门阵列(Field-Programmable Gate Array,FPGA)进行编译处理。通过该系统向刺激器发送参数进行实验,经刺激器处理后在示波器上观察脑刺激所需的刺激信号,结果表明此控制系统参数传输准确,控制有效。同时此设备体积小、携带方便,设计界面简单易懂,便于操作,扩大了研究人员的操控范围,因此具有一定的实用价值。

The ultrasonic stimulator is a necessary tool for the study of neural modulation.However,most of the software control parts of the ultrasonic stimulator are completed by PC at present,and the equipment is large and cannot meet operators’needs of remote control.For that,an ultrasonic stimulator control system based on the Android platform was designed.The software section of this system could be communicated to the stimulator through the mobile phone Bluetooth port.The information input from the mobile terminal could be sent from the section to the field-programmable gate array(FPGA)of the stimulator to compile and process.An experiment was conducted that parameters were sent to the stimulator through the system and processed with the stimulator.Then the stimulation signal needed by brain stimulation was observed on the oscilloscope.The results have shown the accurate transmission of parameters and effective control of the system.Meanwhile,the device,with small size and simple design interface,is easy to carry and operate.It also expand the operating range of researchers.Thus the device is of practical value to a certain extent.