Zigbee device access control and reliable data transmission in zigbee based health monitoring system
- 1. ZIGBEE DEVICE ACCESS CONTROL AND RELIABLE DATA TRANSMISSION IN ZIGBEE BASED HEALTH MONITORING SYSTEM ABSTRACT In this project one user's health monitoring system has a few ZigBee devices to measure one user's physiological data. Even if there are a lot of ZigBee devices nearby, the communication should be accepted between only one user's ZigBee devices. So, the access control should be implemented because there can be a lot of ZigBee devices nearby. We propose a group ID mechanism to implement a access control. There is an access control in MAC layer but we design and implement it in application layer to handle conveniently. The physiological data must not be lost but a wireless communication such as zigbee can lose a data. So, this project proposes the reliable data transmission not to lose a physiological data in zigbee based health monitoring system. Here temperature and pulse rate sensor values should be given to micro controller through ADC, that data given to the ZigBee trans receiver .in receiver section zigbee transceiver will receiver will receive that information and given to the micro controller. If exceeds their values gsm sends the sms to the authorized person. When the temperature sensor and pulse sensor reaches the threshold value .it will transmit to the receiver section and that values sends to the doctor using GSM MODEM. If at any time we need the parameters of the persons so we need to press the switch the values of the person is being received by the transmitter and sends the message using GSM MODEM.