Advancement of Low-cost Medicare System for the Measurement of Physiological Parameters of Human Body
Raksha Iyer1, R. M. Potdar2, Neelam Dewangan3, Jayant Rajpurohit4
1Raksha Iyer, M.Tech. Scholor, BIT, Durg (C.G.), India.
2Prof. R. M. Potdar, Professor, BIT, Durg (C.G.), India.
3Jayant Rajpurohit, Asst. Professor, Chhatrapati Shivaji Institute of Technology, Durg (C.G.), India.
Manuscript received on July 17, 2012. | Revised Manuscript received on August 25, 2012. | Manuscript published on August 30, 2012. | PP: 134-138 | Volume-1 Issue-6, August 2012.  | Retrieval Number: F0632081612/2012©BEIESP

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Abstract: This paper represents a design and implementation of a reliable, cheap, low powered non-intrusive and accurate system that can measure many parameters of human body and keep the records of each patient. It gives an idea to make a database of each patient so that whenever the patient comes to the doctor he doesn’t have to keep his record with him manually. Such a device can be handled by non technical personnel also and can be used both in small clinics and big hospitals. This paper is presented with a motto of saving time of both the doctor and patients. As the device can measure the vital signs in a very less time it can save time of doctor and no. of patients can be observed. This paper specifically deals with the signal conditioning and data acquisition of three vital signs: heart rate, body temperature, and weight. The vital signs that have been taken are temperature, heart rate and oxygen in blood,blood pressure and body mass index. The heart rate is measured by Heart beat sensor which works on the principle of light modulation by blood flow through finger at each pulse.To measure the oxygen amount in blood we use pulse oximeter. The pulse oximeter measures the ratio of red to infrared pulsating absorption, which is directly proportional to the oxygen saturation. The temperature is measured by using LM34 which measures the temperature directly in Fahrenheit and does not need external calibrations. And the weight is measured by load cell. Here a simple circuit is designed by using AT89S52 microcontroller as heart of the circuit. The three sensors are connected with microcontroller via signal conditioning equipments. The data is also easily accessible by both the doctor and patient as complete record of output can be generated by using VB as programming language. 
Keywords: physiological parameter, vital signs of human body, blood Pressure, heart rate, obesity, BMI, oximeter.