Heart rate Detector and alarm circut
Heart rate Detector and alarm circut
(OP)
I am working with Behind The Wheel Technology to create a steering wheel cover that detects the drivers heart rate and will send an alarm to wake them up before they start to fall asleep.
I am am trying to put EEG/ECG/EMG electrode heart rate monitors and wire it to an "if...then" code somehow which will then trigger an alarm to sound. Our studies have found that there is a stage called microsleep where the heart rate drops 8% and our goal is to detect this drop and hope to prevent car crashes all over the nation.
Please let me know if you have any input or could give us an estimate as how much something like this could possibly cost to put together.
I am am trying to put EEG/ECG/EMG electrode heart rate monitors and wire it to an "if...then" code somehow which will then trigger an alarm to sound. Our studies have found that there is a stage called microsleep where the heart rate drops 8% and our goal is to detect this drop and hope to prevent car crashes all over the nation.
Please let me know if you have any input or could give us an estimate as how much something like this could possibly cost to put together.





RE: Heart rate Detector and alarm circut
> have you considered using eye blink instead, as that requires no physical contact with the driver?
TTFN (ta ta for now)
I can do absolutely anything. I'm an expert! https://www.youtube.com/watch?v=BKorP55Aqvg
FAQ731-376: Eng-Tips.com Forum Policies forum1529: Translation Assistance for Engineers Entire Forum list http://www.eng-tips.com/forumlist.cfm
RE: Heart rate Detector and alarm circut
The reason why we believe electrodes are preferred is because they are small enough that if you do only have one hand on the wheel, then your fingers will be able to complete the circuit.
Gloves we are not as concerned about because our primary target is for truck drivers who drive 8-14 hours a day and they are typically not wearing gloves.
RE: Heart rate Detector and alarm circut
... and there is clearly a time delay of several seconds in the circuit, so that changes are reflected, but late, and letting go of the handle does not immediately cause the displayed value to go to zero.
I think you might get some pushback about a requirement to grasp a piece of cold metal in wintertime.
I recall reading that someone is monitoring driver alertness by sensing small motions of the steering wheel, which happen continuously when the driver is alert, and not when (s)he dozes off.
Mike Halloran
Pembroke Pines, FL, USA
RE: Heart rate Detector and alarm circut
I am not sure if the cold is one of our concerns because typically they are diving for a while and that allows the car and steering wheel to heat up.
Is there a type of coating of some sort that could go over the metal pieces and possibly protect it from the extreme cold?
RE: Heart rate Detector and alarm circut
A.
RE: Heart rate Detector and alarm circut
Have you confirmed that a single hand will get you the data? You're essentially completing the circuit across 2 fingers, and ECG typically requires a path that goes at least close to the heart.
Another option besides the Fitbit heart rate approach, which uses green LEDs, is the pulse oximeter approach, which uses red and infrared LEDs. Pulse oximeters are typically used primarily to measure blood oxygen, but in the course of getting there, you also get heart rate. Since you don't need the accuracy, you might be able to move the red LED wavelength to where they're nearly imperceptible, or use only the infrared LED, but you'll need to do some testing. If the red LED is required, you might be able to push the wavelength up past 750 nm, at which the eye response is pretty low. With some decent shielding, the light might not even be apparent to the driver.
TTFN (ta ta for now)
I can do absolutely anything. I'm an expert! https://www.youtube.com/watch?v=BKorP55Aqvg
FAQ731-376: Eng-Tips.com Forum Policies forum1529: Translation Assistance for Engineers Entire Forum list http://www.eng-tips.com/forumlist.cfm
RE: Heart rate Detector and alarm circut
RE: Heart rate Detector and alarm circut
RE: Heart rate Detector and alarm circut
http://robotica.mecc.polimi.it/psycar/files/bio2.p...
http://www2.fiit.stuba.sk/~fogelton/projects/Druta...
https://www.sciencealert.com/new-system-monitors-h...
https://www.researchgate.net/profile/Anda_Baharav/...
Nevertheless, the cueing does seem tenuous, at best. We looked into the eye-blink about 20 yrs ago, which seemed to be the most promising at the time.
TTFN (ta ta for now)
I can do absolutely anything. I'm an expert! https://www.youtube.com/watch?v=BKorP55Aqvg
FAQ731-376: Eng-Tips.com Forum Policies forum1529: Translation Assistance for Engineers Entire Forum list http://www.eng-tips.com/forumlist.cfm
RE: Heart rate Detector and alarm circut
According to Richard Hammond formerly of Top Gear, the system monitors 70-some parameters, a larger number of data channels than when he was in Intensive Care after his jet car crash.
As far as I know, it relies on existing sensors and data.
RE: Heart rate Detector and alarm circut
https://youtu.be/3rWycBEHn3s
RE: Heart rate Detector and alarm circut
IR based heart rate monitors are probably not the best solution. I think they need to be clipped onto a finger to work well. I built one as part of a course in university and neither myself nor any of my classmates were able to make it tolerate much variance in finger placement or pressure.
RE: Heart rate Detector and alarm circut
RE: Heart rate Detector and alarm circut
RE: Heart rate Detector and alarm circut
Z
RE: Heart rate Detector and alarm circut
RE: Heart rate Detector and alarm circut
RE: Heart rate Detector and alarm circut
TTFN (ta ta for now)
I can do absolutely anything. I'm an expert! https://www.youtube.com/watch?v=BKorP55Aqvg
FAQ731-376: Eng-Tips.com Forum Policies forum1529: Translation Assistance for Engineers Entire Forum list http://www.eng-tips.com/forumlist.cfm
RE: Heart rate Detector and alarm circut