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1. A Zigbee-Based Wearable Physiological
Parameters Monitoring System
Abstract
The system we are developed to monitor the overall health of welfare facility residents,
who need constant care. The wireless technology of electronics is growing day by day. Using
this technology, sensor-network arrangement such as distributed and self-organization can be
constructed. A portable biomedical system can be build based on the network types available,
which can monitor the patient’s health in real time. This system applies Zigbee communication
protocol, and uses the RF transceiver. It has the characteristics of low power consumption, low
cost, flexible structure and accurate measurement, and it can achieve the long-distance
monitoring of patients condition in real time.
Existing System:
The existing system is based on the wired technology and they actually depend over
manual operation. The user’s privacy is not protected in previous wired or wireless sensor
network. This proves to be a major drawback in the existing system.
Proposed System:
This paper presents a system that can be used to monitor physiological parameters, such
as temperature and heart rate, of a human subject. Here we are monitoring the patient’s heart
beat and body temperature using sensors. The microcontroller uses the algorithm to encrypt the
measured data and then it is transmitted using Zigbee wireless communication. The Zigbee in the
receiving end is interfaced with a PC; the data received is decrypted and monitored in the PC.

2. Block Diagram:
Sensor Node:
Power supply
Temperature
Sensor
LCD
PIC
16F877A
Heart Beat
Sensor
Micro
Controller
Monitoring Section:

3. Power supply
Max232
Hardware Requirements:







PIC 16F877A Microcontroller unit
Zigbee Module
PC with .Net
Temperature Sensor
Heart Beat Sensor
Max 232
LCD
Software Requirements:
 Embedded C
 MP Lab or CCS Compiler
Advantages:
 Secured data transmission.
 Real time updated information.
 Free of complex wire.
PC