Design Of Human Health Monitoring System Based On ZigBee

With the continuing development of the WSN and IOT, the interaction between people andnature has also been changed. Monitor of physiological index for human health is one of themost important applications of the IOT in the smart health care. Intelligent medical monitoringequipment monitors patients and sends the data to the remote monitoring platform via wirelessnetwork. Thus the condition of monitored patients can be conveyed to doctors and families intime. The application pattern of medical monitoring equipment has already become importantscientific project and will develop in the family-oriented direction in the future.According to the needs of health monitoring of modern society, system of human healthmonitoring which is suitable for family environment has been researched and developed by usingZigBee short-range wireless transmission technology and combining with GPRS wirelesstechnology in this thesis. The system is able to collect information on human physiologicalparameters including temperature, pulse, and deliver information via ZigBee wireless sensornetworks. Senior citizens and patients can visually see their physiology test data. When test dataof temperature or pulse exceeds the normal healthy range, the system will warn the guardian(family members or doctors) by sending SMS so as to perform timely diagnosis and medicaltreatment for the senior citizens or patients.The modular design of the whole system is divided into three parts, which consists of dataacquisition modules, wireless transceiver modules, and information control terminal module. Thepracticality and intelligence of the system was tested by experiments. Experimental results showthat the data collected was relatively accurate and reliable. The main research results are asfollows:1. The measuring principle of human physiology index data was studied. The system usedthe MSP430F449chip as the core of human physiological information collection SCM. Thedigital temperature sensor DS18B20was used to get temperature data. The transmissive opticalpulse sensor was used and the pulse acquisition circuit was designed. According to therelationship between the blood concentration and the transmittance, the system achievedmeasurement of the pulse.2. The ZigBee short-range wireless transmission technology was researched. The systemused TI’s CC2530chip as the core of ZigBee wireless sensor network hardware. ZigBee stackwas analyzed and researched. The sensor node software was designed. A ZigBee wireless sensornetwork was set up and the system realized the remote transmission of data.3. The system used MSP430F149microcontroller as the microprocessor of informationprocessing. The MSP430F149hardware and software were designed and the collected data was analyzed and processed by the SCM. Meanwhile, the information can be displayed through theLCD timely.4. The GPRS wireless communication technology was researched. The system usedMSP430F149microcontroller to send AT commands to the GPRS module, so as to send alarmmessages. When the measured data of the senior citizens or patients exceeds the preset range, thesystem can send text messages to the guardian timely.