Emotion Recognition Based on Multiple Physiological Signals / 中国医疗器械杂志

Emotion is a series of reactions triggered by a specific object or situation that affects a person's physiological state and can, therefore, be identified by physiological signals. This paper proposes an emotion recognition model. Extracted the features of physiological signals such as photoplethysmography, galvanic skin response, respiration amplitude, and skin temperature. The SVM-RFE-CBR(Recursive Feature Elimination-Correlation Bias Reduction-Support Vector Machine) algorithm was performed to select features and support vector machines for classification. Finally, the model was implemented on the DEAP dataset for an emotion recognition experiment. In the rating scale of valence, arousal, and dominance, the accuracy rates of 73.5%, 81.3%, and 76.1% were obtained respectively. The result shows that emotional recognition can be effectively performed by combining a variety of physiological signals.

Design of portable integrated remote medical examination chest / 医疗卫生装备

Objective To design a portable integrated remote medical examination chest for telemedicine of the servicemen in remote areas.Methods The chest involved in a portable multi-parameter vital signs monitor,a 12-lead network ECG machine,an optical endoscope,an electrostethophone and etc,and applied medical information technology,biosensor technology,IOT,cloud technology and etc.The terminals for diagnosis and treatment,doctor as well as data uploading were developed,and the network storage,control and interaction of multi-type data were realized for the terminals.Results The chest implemented inter-connection and inter-communication between the elementary medical facilities and rear hospitals,and thus facilitated the telemedicine service for the troops in remote areas.Conclusion The chest executes integrated medical service of the central hospital and troops in remote areas,and thus is worthy promoting in the telemedicine system of the PLA.

Design and research of intelligent system for triage / 军事医学

Objective To develop an intelligent system which is able to offer an optimized emergency treatment recommendation for fast triage automatically.Methods An algorithm and intelligent platform for grading injury were developed based on physiological signal collecting technology, intelligent grading algorithm and integration technology.A comparison between this system and traditional methods was made.Results This intelligent system was able to increase accuracy by 21%and took only 48%of the time taken by traditional methods.There was significant difference between the two groups(P=0.038<0.05).Conclusion The accuracy of the triage is improved by this intelligent system that is less time-consuming.With this device, the injury statement can be identified quickly and the targeted medical treatment can be performed accurately.The efficiency of emergency treatment in case of disaster will thus be dramatically increased.

The Application of UART-Wi-Fi Module in the Physiological Signal Wireless Measurement System / 昆明医科大学学报

Objective To explore a new way of physiological signal wireless measurement to popularize the physiological signal wireless measurement. Methods We added a UART-Wi-Fi module between the signal detecting module and the PC, the physiological signal measurement system transmitted the signal data collected by the single chip computer to the UART-Wi-Fi module through the serial interface RS-232C. Then the UART-Wi-Fi module sent the signal data out to the Wi-Fi wireless network. The PC received the signal data from the Wi-Fi wireless network and processed the signal data, then output the results. Result Through the UART-Wi-Fi module, the communication between PC and the signal detecting module was converted from wired communication into wireless communication successfully. Conclusion As a result of any computer can be used as a physiological signal receiving and processing terminal equipment, the use of the UART-Wi-Fi module can help achieve popularization of physiological signal wireless measurement.

Diseño e implementación de un instrumento virtual para la adquisición y procesamiento de señales fisiológicas

Se desarrolla e implementa un sistema basado en instrumentación virtual para la adquisición y procesamiento de señales fisiológicas para ser empleado como herramienta para mejorar el proceso de enseñanza-aprendizaje que se lleva a cabo en los laboratorios de fisiología de las facultades de Medicina de nuestro país. El hardware del sistema comprende un amplificador de bio-potenciales de cuatro canales, una tarjeta de adquisición de datos y un computador personal (PC) que permite la interfase con el usuario. Para el desarrollo del software se empleó el lenguaje de programación gráfico LABVIEW 6.1. Se implementaron prácticas de laboratorios empleando principalmente las señales fisiológicas: electrocardiográficas y electromiógraficas. Como resultado del trabajo se implementó un prototipo que funciona con los requerimientos técnicos exigidos para realizar prácticas docentes en un laboratorio de fisiología. Entre las conclusiones del trabajo podemos nombrar: es factible el diseño e implementación de instrumentos virtuales con fines educativos para ser empleados en laboratorios con las mismas capacidades de instrumentos equivalentes producidos en países desarrollados, y la necesidad de que estos instrumentos puedan producirse en serie para beneficiar a un mayor número de estudiantes de Medicina.

It is developed and it implemented a system based on virtual instrumentation for the acquisition and physiological signal processing to be used like tool to improve the education process learning that are carried out in the laboratories of physiology of the medicine faculties of our country. The hardware of the system includes/understands a bio-potential amplifier of 4 channels, a card of data acquisition, and a personal computer (PC) that the interphase with the user allows. For the development of software the graphical programming language LABVIEW 6.1 was used. Practices of laboratories were implemented mainly using the physiological signals: electrocardiograficas and electromiograficas. As resulting from the work implemented a prototype that works with the technical requirements demanded to make educational practices in a physiology laboratory. Between the conclusions of the work we can name: It is feasible the design and implementation of virtual instruments with educative aims to be used in laboratories with the same capacities of produced equivalent instruments in developed countries, and the necessity that these instruments can take place in series to benefit to a greater number of medicine students.

Review on Body Fatigue Assessment of Human Operation / 航天医学与医学工程

The human workload is of great importance to ergonomic evaluation of man-machine system.The local muscle fatigue is considered to be one of the main indexes.In this paper,the cause of local muscle fatigue,its assessment methods and development trends were described in detail.Some related technological problems about its mechanism,measurement and assessment methods were analyzed and induced.Finally,some views were put forward for discussion.