Design of Low Power Multi-parameter Monitoring System Based on Bluetooth / 中国医疗器械杂志

This paper designs a bluetooth-based low-power multi-parameter monitoring system. The system is mainly composed of ECG signal acquisition, respiratory signal acquisition, body temperature acquisition, bluetooth 4.0 transmission module and Android mobile phone APP display. The system collects the corresponding physiological signals through various collection parts, and can realize the monitoring of three physiological signals of electrocardiogram, respiration and body temperature. The Android mobile APP can display ECG, respiratory waveform and temperature data in real time. The system is small in size and low in power consumption, and has a good application prospect in portable and wearable medical applications.

Design implementation and of ECG monitoring and management system based on smartphone platform / 医疗卫生装备

Objective To develop an ECG monitoring and management system based on the smartphone platform to transmit ECG data to the doctor in daily life or working environment.Methods The system was composed of an ECG signal acquisition device and a smartphone App.The ECG signal acquisition device used MSP430F149 microcontroller as the core unit,which executed ECG signal extraction by adopting right leg drive,active filters,dual instrumentation amplifier and moving average algorithm,applied differential threshold method to accurately detecting R wave,calculated heart rate and then sent ECG data to the smartphone through Bluetooth 4.0 module.The smartphone App was developed based on cross-platform mobile development framework Cordova,and used Cordova plugins,JavaScript,HTML5 and CSS to receive the data from the acquisition device,draw and store ECG,show heart rate and remind abnormalities in heart rate as well as to transmit ECG data to the doctor through the mobile medicine App and social App.Then the doctor provided advices on prevention,treatment and etc after analyzing the received data.Results Compared with the ECG machine,the system had the relative errors of heart rate,P duration,QRS duration and QT duration being 2.7％,4.5％,4.3％ and 3.3％ respectively.All the above four parameters having significant correlations,and the correlation parameters were 0.955,0.948,0.91 and 0.834 respectively (P＜0.05).The system had 8-h endurance in case of being fully charged.Concluslon The system gains advantages in power consumption,accuracy,noise,cost,volume,weight,safety,reliability as well as easy operation and maintenance,and facilitates the ECG conditions to be mastered timely by the doctor.

Design implementation and of ECG monitoring and management system based on smartphone platform / 医疗卫生装备

Objective To develop an ECG monitoring and management system based on the smartphone platform to transmit ECG data to the doctor in daily life or working environment.Methods The system was composed of an ECG signal acquisition device and a smartphone App.The ECG signal acquisition device used MSP430F149 microcontroller as the core unit,which executed ECG signal extraction by adopting right leg drive,active filters,dual instrumentation amplifier and moving average algorithm,applied differential threshold method to accurately detecting R wave,calculated heart rate and then sent ECG data to the smartphone through Bluetooth 4.0 module.The smartphone App was developed based on cross-platform mobile development framework Cordova,and used Cordova plugins,JavaScript,HTML5 and CSS to receive the data from the acquisition device,draw and store ECG,show heart rate and remind abnormalities in heart rate as well as to transmit ECG data to the doctor through the mobile medicine App and social App.Then the doctor provided advices on prevention,treatment and etc after analyzing the received data.Results Compared with the ECG machine,the system had the relative errors of heart rate,P duration,QRS duration and QT duration being 2.7％,4.5％,4.3％ and 3.3％ respectively.All the above four parameters having significant correlations,and the correlation parameters were 0.955,0.948,0.91 and 0.834 respectively (P＜0.05).The system had 8-h endurance in case of being fully charged.Concluslon The system gains advantages in power consumption,accuracy,noise,cost,volume,weight,safety,reliability as well as easy operation and maintenance,and facilitates the ECG conditions to be mastered timely by the doctor.

Design of ECG signal acquisition system based on MSP430 microcontroller / 医疗卫生装备

Objective To design a high performance and low power consumption ECG signal acquisition system which can meet the demand for long time monitoring of the physiological status of patients.Methods The prototype system utilized low power ECG analog front end ADAS1000 and MSP430F5529 microcontroller to achieve configuration of AFE and back-reading of ECG data by SPI bus. Results This system implemented 24-hour dynamic ECG monitoring of patients in active state, and the data acquired were accurate and reliable.Conclusion The system realizes PCB integration, low power consumption, and can be used for battery powered portable application such as wearable devices.

Study of Transcutaneous Wireless Bidirectional Communication System Based on Pulse Position Modulation / 航天医学与医学工程

Objective To find out a PPM-based transcutaneous wireless bidirectional communication system for implantable medical device.Methods The wireless communication system included device implanted in the body,controller and PDA outside the body.Pulse position modulation(PPM) was used for the wireless bidirectional communication between device implanted in the body and controller outside the body.Results A PPM-based transcutaneous wireless communication system was realized.Its wireless bidirectional communication distance between device implanted in the body with titanium container and controller outside the body was over two inches.This system was with good position availability.Conclusion Pulse position modulation is successfully used for transcutaneous wireless communication system,and average power consumption for communication device implanted in the body is lowered greatly compared with ASK modulation method.At the same time,the volume of communication device implanted in the body is decreased for antenna common-using idea.

Design of an instrument of measuring individual physical consumption in army training / 医疗卫生装备

Exercise quantity is one of the important indexes used to evaluate physical consumption during training, so it is necessary to design a kind of instrument to accurately measure physical consuption. It must be practical, portable and with a low power consumption. This article introduces the mechanism of measuring exercise quantity. The methods of traditional and acceleration compared, the latter is selected. The design is described from the two aspects of general design and component choosing.

Design of the midget ultralow power consumption ECG auscultoscope / 医疗卫生装备

As a substitute of the traditional auscultoscope, the midget ultrolow power consumption ECG auscultoscope combines the traditional one with the electrocardiograph, which is easy to operate and carry.

Design of mobile ECG monitoring microsystem terminal / 医疗卫生装备

Healthcare at home is accepted little by little with the development of medical service in the community. This paper introduces the design method of mobile ECG monitoring system terminal for healthcare at home. The adoption of active electrode and digital trap contributes to the elimination of the external interference. Low-power-consumption MSP430 micro-controller applied, the realtime acquisition, procession and transmission to PDA of ECG are performed.