30-10-2012, 03:35 PM
HEART BEAT MONITORING WITH DISPLAY ON LCD
HEART BEAT MONITORING.doc (Size: 23 KB / Downloads: 42)
ABSTRACT
Technology is being used every where in our daily life to fulfill our requirements. We are employing different sensors for different applications some times we may even use same sensors differently for different applications. What ever it may be the final output is life has increased its speed with the technology boosters. We can not only increase the speed of life but also increase security with good ideas to make use of this technology. One of the ideal ways of using technology is to employ it to sense serious health problems so that efficient medical services can be provided to the patient in correct time. This idea to provide efficient health service to patients has given birth to the project heart beat monitoring system with display on LCD.Heart beat monitor and display system is a portable and a best replacement for the old model stethoscope which is less efficient. The heart beat rate is calculated manually using stethoscope where the probability of error is high because the heart beat rate lies between 70 to 90 per minute whose occurrence is less than 1 sec, so this device can be considered as a very good alternative instead of a stethoscope.
The functioning of this device is based on the truth that the blood circulates for every one heart beat which can be sensed by using a circuit formed by the combination of an LDR and LED. Depending upon the rate of circulation of blood per second the heart beat rate per minute is calculated. This device consists of a micro controller which takes the input from the heart beat sensor and calculates the heart rate of the patient. The micro controller also takes the responsibility to display the same on LCD which is interfaced to it through LCD drivers.
For this the microcontroller is interfaced with voice based IC circuitry. This circuit is driven by the controller dynamically when ever required.