There are many ECG monitoring devices available in the market such as ”King of heart” shown in figure 1.1, but in this project thesis an ambulatory ECG monitoring system design and development is discussed. Perceiving ECG from a patient's perspective, an analog front end circuit amplifies the ECG signal. The signal is then filtered and converted to digital domain. The digital signal is buffered into memory. If the patient feels chest pain, he or she will press a button and the last few seconds of ECG remains in the memory. The patient then dials the hospital that has the monitoring facility and puts the device on the mouthpiece of the telephone or mobile.
The device will have an optional fast dialing feature for landline phones, using pre-recorded dual tone multi frequency (DTMF) tone for the number.