blood pressure/heart rate controlled time lock

[davidbenjamindix]

i am a woodworker that enjoys electronics and magnetivity. i make custom woodworking lock boxes with hidden magnetic locks. what i'm trying to conceive is some type of heart rate monitor locking/unlocking device, or a blood pressure band.

two things:
1. if i got my hands on an electronic blood pressure cuff, in the box you have to put your arm inside the box while it's locked to actually reach the lock. when you insert your arm, the cuff automatically tightens, and this serves as a security feature for the lockbox. of course if you can't unlock the box, you're kinda screwed, until the timelock's timer countdowns, then the blood-pressure cuff releases and your arm is free again.

2. if i had a heart rate monitor hooked up to a lock device, you would attach it to your arm, and actually have to get your heart rate on a specific number for a few seconds, sending a signal to a switch that unlocks the box. how can i accomplish either of these problems?

thanks,
David Dix

[Squelchtone]

i am a woodworker that enjoys electronics and magnetivity. i make custom woodworking lock boxes with hidden magnetic locks. what i'm trying to conceive is some type of heart rate monitor locking/unlocking device, or a blood pressure band.

two things:
1. if i got my hands on an electronic blood pressure cuff, in the box you have to put your arm inside the box while it's locked to actually reach the lock. when you insert your arm, the cuff automatically tightens, and this serves as a security feature for the lockbox. of course if you can't unlock the box, you're kinda screwed, until the timelock's timer countdowns, then the blood-pressure cuff releases and your arm is free again.

2. if i had a heart rate monitor hooked up to a lock device, you would attach it to your arm, and actually have to get your heart rate on a specific number for a few seconds, sending a signal to a switch that unlocks the box. how can i accomplish either of these problems?

thanks,
David Dix

I think you're on the wrong forum man.. this sounds more like a project for Make Zine or something along those lines. It sounds like an interesting project, maybe our Open Source Lock people could help you with ideas.

The Open Source Lock Forum:
http://www.lockpicking101.com/viewforum.php?f=25

Squelchtone

[mylt1]

heart rate varies way to much to be useful as a "key" as your describing. as for the BP cuff, all it takes is a pin or knife to get rind of that feature. also, they arent that hard to pull out of even when inflated. another thing is, if they are on your arm to tight for to long they can cause problems. they do cut off all circulation below the point of the cuff.

[EmilyB]

How would the unlocker control his/her heart rate well enough to hit the target number? The tech is there to use that sort of thing but I don't see the use to sort people who should have access from those who shouldn't.

[mh]

Nice idea, might have some novelty or game applications (as in - after you digged the box out of the ground, your heart needs to slow down first...)
I typed "heart rate monitor selfmade" into google, and there are some documented projects out there.

Cheers
mh

[unlisted]

As others have mentioned heart rates vary too much.. for BP to be a suitable lock/key/authenticate idea.

What you could look into would be a ECG type of machine.. Dependent on the person they could have a artifact in their heart rhythm which could be made to appear as a "digital key" (thinking something like a heart murmur, etc)

Than again, even heart rates (in this manner) don't really vary enough.. So if the lock is supposed to open for a healthy person, another healthy person would most likely be able to operate it as well.. (thus making the lock ineffective in a security aspect)

Than again, you need quite a few leads for a ECG... and a exposed chest. heh. (no more comments needed I am sure)

(build a DNA sequencer lock.. that will be impressive!)

I will say this, good idea, keep up the brainstorming- you may just create a new type of bio-metric operated lock one day.

[ckc123]

This could also be "picked" fairly easily as well.. With a metronome that produce some kind of "impact".. then you just place it against the "Cuff" and it will produce exactly the frequency you want to open the lock

[unlisted]

This could also be "picked" fairly easily as well.. With a metronome that produce some kind of "impact".. then you just place it against the "Cuff" and it will produce exactly the frequency you want to open the lock

would not work, if you are talking the bp lock idea- a metronome is a variable single (constant) tick or beat, and a BP measures two main pressures- (beat differences) Systolic and diastolic. (max and min pressure exerted on blood vessels)

[nightfox]

Hello,i have three different lock biometric to blood pressure,pulse heart and print finder
to the security pol italian
This look it's a command wireles to open the door ,garage and ...

[ckc123]

would not work, if you are talking the bp lock idea- a metronome is a variable single (constant) tick or beat, and a BP measures two main pressures- (beat differences) Systolic and diastolic. (max and min pressure exerted on blood vessels)

This can be simulated fairly easily with a magnetic actuator (pressure up(out)/ delay/ pressure down(in).

Just adjust the voltage (force = pressure) and delay (difference between 2 beats, and from systolic to next systolic)

you could also use a speaker diaphragm as well as that's exactly how they vibrate to recreate sound.

[unlisted]

Yes, it could easily be "spoofed" - yet again proving the lack of security with a locking device such as this.

All it would require is a heartbeat (of anyone really) or something that can produce a simulation of a heartbeat. Don't see much security when there are over 6 billion "keyholders" on this world..

[SnowyBoy]

Errr I think this is actually a pretty good idea! The heart rate thing anyway.

Safes could have heart rate monitors to see if the user is panicked or calm when opening the safe (from being under duress). The BPM band could be wide enough to take faster heart rates into account, for instance 100 BPM+ would stop the safe opening for another 30 minutes until the user was calm.

[SnowyBoy]

Oh and before anyone asks 'How would the safe know your heart rate?'........... simple, you're holding the key

[unlisted]

Yea, ok... I'll go with that idea- as long as its a secondary "lock" and not the primary.

[SnowyBoy]

Yea, ok... I'll go with that idea- as long as its a secondary "lock" and not the primary.

Of course......