Lumbar cushion based real-time ECG sensing system for monitoring driver´s state

As driver´s inattention becomes one of the major causes of traffic accidents, there have been many researches for monitoring driver´s health and cognitive states. In this paper, a non-intrusive real-time ECG system based on capacitive sensing method was proposed. To verify the ECG sensing system, on-road experiment was conducted on three different types of road environment. As a result, the ECG waveforms were successfully obtained and clearly displayed on the smart phone via Bluetooth communication. The robustness of the ECG signal was improved by placing the sensors on the lumbar support cushion of the seat.