Last night we did research and we discussed our project until late night at my place. Due to we both have to work as part time therefore our process were slow.
Today was our stage 1 demonstration for our project. We have shown the basic system flow chart as below:
1. Signal from sensors
2. Signal conditioning (filter & amplifier)
3. Beat to beat interval detection
4. HRV library (general information)
5. Drowsiness detection
6. If driver is drowsy, warning will be given
7. If driver is no drowsy, system will keep monitor
From the presentation we have explained that we are now only focus on doing drowsiness detection in our project. Due to the alcohol issue it is needed another components to check the alcohol containing from human skin.
We planed to locate the ECG sensors on car seat to get ECG signal from driver's back, and also another sensor on the seat.
The material of sensor we will use which is conductive fabric. It is because of low cost and it can sense tiny electric signal of your muscles.
The reaction of the system, we decided to put warning sound until it switched off by driver. Moreover, the vehicle speed will be slowed down or stopped if warning system did not turn off.
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