基于nRF24L01的小动物微小型遥控刺激系统设计

Miniature Wireless Remote Control Stimulation System for Small Animals Based on nRF24L01

提出了一种基于nRF24L01的动物机器人微小远程无线遥控刺激系统。该系统由PC端上位机、指令发送端和微刺激器三部分组成,主控芯片为STM32F103RCT6,无线通信芯片为nRF24L01,通过多路复用器和植入式电极可刺激最多8个通道。微刺激器体积为20 mm×30 mm×17 mm,重量9.3 g(含电池)。PC端上位机使用LabVIEW编写,主要功能是进行刺激参数设置。通过在大壁虎和鸽子相关脑区植入金属微电极的方法对其进行运动人工诱导实验,成功诱导出大壁虎左转和鸽子起飞、左转等运动行为。结果表明,该系统控制指令的发放与接收稳定有效,能够输出适于动物脑功能研究的电刺激信号,适用于小型动物的运动调控研究。

This paper presents a miniature wireless remote control system for bio-rabots based on nRF24L01. The system consists of user interface on computer( UI),command transmitter( CTX) and micro-wireless stimulator( MWS). Microcomputer is STM32F103RCT6 and wireless communication chip is nRF24L01; The MWS’s dimension is 20 mm × 30 mm × 17 mm,weight 9. 3 g( including a lithium battery). The UI written by LabVIEW is used to set the stimulus parameters. Eight electrodes were implanted into the Gekko Gecko‘s and pigeon ’s related brain regions and the artificial induction experiment was carried out. During the experiment,the G. gecko’s left turn,the pigeon’s takeoff and left turn appear more frequently. The results show that the control command transmission and reception arestable and effective,and it is suitable for artificial induction for small animals’ locomotion.