基于ZigBee的医用高压氧舱氧气浓度自动控制系统

Automatic Control System of Oxygen Concentration in Medical Hyperbaric Oxygen Chamber Based on ZigBee

为有效防止医用高压氧舱氧气浓度异常对人体造成的损害,设计基于ZigBee的医用高压氧舱氧气浓度自动控制系统。数据采集模块利用微处理器STM32F103C8T6接收各个采集点的氧浓度数据,经数据处理模块的ZigBee将处理结果传输给从机接收端的MSP430G2553单片机,MSP430G2553单片机采用自组织T-S模糊神经网络(SOTSFNN),加入激活强度概念,实现高压氧舱氧气浓度自动控制,并在氧浓度低于19 mg/L、高于23 mg/L时控制蜂鸣器发出报警,通过LCD12864显示当前实时氧浓度。实验结果表明:随着通信距离增加,该系统的丢包率始终低于5%,且相同通信距离下的信号强度较好;该系统能有效控制氧气浓度值在设定范围内,且氧气浓度控制精度高、稳定性好。

In order to effectively prevent the damage to the human body caused by abnormal oxygen concentration in the medical hyperbaric oxygen chamber,a ZigBee-based medical hyperbaric oxygen chamber oxygen concentration automatic control system is designed.The data acquisition module uses the microprocessor STM32F103C8T6 to receive the oxygen concentration data of each acquisition point,and the ZigBee of the data processing module transmits the processing results to the MSP430G2553 single-chip microcomputer at the receiving end of the slave.The MSP430G2553 singlechip microcomputer uses a self-organizing TS fuzzy neural network(SOTSFNN)and adds activation.The intensity concept realizes automatic control of the oxygen concentration in the hyperbaric oxygen chamber,and controls the buzzer to give an alarm when the oxygen concentration is lower than 19 mg/L and higher than 23 mg/L,and displays the current real-time oxygen concentration through LCD12864.The experimental results show that as the communication distance increases,the packet loss rate of the system is always lower than 5%,and the signal strength under the same communication distance is better;the system can effectively control the oxygen concentration value within the set range,and the oxygen concentration.The control accuracy is high and the stability is good.