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Howard Alistair Mitchell  
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 More options Aug 23 2012, 11:28 am
From: Howard Alistair Mitchell <ha.mitchell.mob...@gmail.com>
Date: Thu, 23 Aug 2012 16:28:17 +0100
Local: Thurs, Aug 23 2012 11:28 am
Subject: Re: [london-hack-space] Bike Theft Challenge

hey Nick,

Completely agree.

Hence, the attitude to challenging potential bicycle thieves, or
'negotiating' with them (!), could spread like fungus once such
technologies get implemented into urban bicycle security.

My snail-pace (Warp Factor One) prototype development of such a device
could be much helped by an enthusiastic electronics competent HackSpacer,
so if anybody fancies getting involved with prototype building, please get
in touch.

(got all the bits: Bluetooth Ardurino, Bluetooth chip, RF, sensors, shields
etc!)

Howard

On 23 August 2012 15:55, Nick Leaton <nic...@gmail.com> wrote:

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(sent from my mobile computer/phone, please excuse my brievty)

Howard Alistair Mitchell

ha.mitchell.*mobi...@gmail.com <ha.mitchell.mob...@gmail.com>

ha.mitchell.*ho...@virginmedia.com <ha.mitchell.h...@virginmedia.com>


 
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Nick Leaton  
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 More options Aug 23 2012, 11:31 am
From: Nick Leaton <nic...@gmail.com>
Date: Thu, 23 Aug 2012 16:31:22 +0100
Local: Thurs, Aug 23 2012 11:31 am
Subject: Re: [london-hack-space] Bike Theft Challenge

The reason why I like the idea of kevlar, is that ages ago I made a small
kevlar/carbon fibre bracket for a camera. To trim it up afterwards was
unbelieveably hard. Angle grinders will go through glass fiber and carbon
like its nothing there. Kevlar? It's tough. You can take the matrix out,
but that still leaves the threads. Now the other part is that its light. A
light bike chain would be heaven.

However, making a bike chain out of composites isn't easy. I can't think of
an easy way of manufacturing it. First you make half the number of
individual links. That's the easy bit. Now you have to make links that join
them together. That's far harder.

If you've any clever ideas, I'm interested.

On 23 August 2012 16:19, Howard Alistair Mitchell <

--
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Nick Leaton  
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 More options Aug 23 2012, 11:34 am
From: Nick Leaton <nic...@gmail.com>
Date: Thu, 23 Aug 2012 16:34:54 +0100
Local: Thurs, Aug 23 2012 11:34 am
Subject: Re: [london-hack-space] Bike Theft Challenge

From the electronics side, there are two options.

1. The alarm when the bike is moved.

How about low power, turns on with a tilt switch. Then checks via gps if
moved, and triggers an alarm.

2. The same, but passive. Same as a car tracker. Wifi or text with the
location, but no alarm. Might not deter, but might get you the bike back.

On 23 August 2012 16:28, Howard Alistair Mitchell <

--
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Simon Howes  
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 More options Aug 23 2012, 11:37 am
From: Simon Howes <simonhowes...@googlemail.com>
Date: Thu, 23 Aug 2012 16:37:44 +0100
Local: Thurs, Aug 23 2012 11:37 am
Subject: Re: [london-hack-space] Bike Theft Challenge

I always though an armoured guard with a spike on it, and designed that it
clamped over the seat and held onto the saddle with a locking collet would
be effective :)

It'd stop the seat being nicked too, and look quite comical
On Aug 23, 2012 4:31 PM, "Nick Leaton" <nic...@gmail.com> wrote:


 
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Nick Johnson  
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 More options Aug 23 2012, 11:39 am
From: Nick Johnson <arach...@notdot.net>
Date: Thu, 23 Aug 2012 16:39:05 +0100
Local: Thurs, Aug 23 2012 11:39 am
Subject: Re: [london-hack-space] Bike Theft Challenge

It also says:

The winning innovation will be the one that results in the longest time to

> steal the bike with a minimum threshold of five minutes.

I don't think they'll allow you to come running out and tackle the person
attempting to 'steal' the bike for the test as a preventative measure,
somehow.

-Nick

On Thu, Aug 23, 2012 at 4:14 PM, Howard Alistair Mitchell <


 
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Paul Randle-Jolliffe  
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 More options Aug 23 2012, 11:45 am
From: Paul Randle-Jolliffe <p...@patrocinium.eu>
Date: Thu, 23 Aug 2012 16:45:55 +0100
Local: Thurs, Aug 23 2012 11:45 am
Subject: Re: [london-hack-space] Bike Theft Challenge

Why is there no standard plugin to frame sat tracking, its done with cars
and just needs to be built into the frame and with a charging port, how
much battery can you get into a bike frame, lots it would last a year maybe?

On 23 August 2012 16:19, Howard Alistair Mitchell <

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Nick Leaton  
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 More options Aug 23 2012, 11:51 am
From: Nick Leaton <nic...@gmail.com>
Date: Thu, 23 Aug 2012 16:51:54 +0100
Local: Thurs, Aug 23 2012 11:51 am
Subject: Re: [london-hack-space] Bike Theft Challenge

Hence you need to not track until you get movement. That way your power
consumption is down.

On 23 August 2012 16:45, Paul Randle-Jolliffe <p...@patrocinium.eu> wrote:

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Nick Johnson  
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 More options Aug 23 2012, 11:52 am
From: Nick Johnson <arach...@notdot.net>
Date: Thu, 23 Aug 2012 16:52:19 +0100
Local: Thurs, Aug 23 2012 11:52 am
Subject: Re: [london-hack-space] Bike Theft Challenge

I've seen a bike that has front and tail lights with battery integrated
into the tubes. You could fit a fair bit in, but GPSes use a lot of power.
Also, anything with a GPS and a cellular modem is going to be pretty
expensive, especially in small quantities.

Honestly, the best prototyping platform is probably a cheap Android phone.
It's got accelerometers and gyros built in, has a GPS, a cellular radio and
a battery, and runs your own code.

-Nick

On Thu, Aug 23, 2012 at 4:45 PM, Paul Randle-Jolliffe
<p...@patrocinium.eu>wrote:


 
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Nick Johnson  
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 More options Aug 23 2012, 11:53 am
From: Nick Johnson <arach...@notdot.net>
Date: Thu, 23 Aug 2012 16:53:29 +0100
Local: Thurs, Aug 23 2012 11:53 am
Subject: Re: [london-hack-space] Bike Theft Challenge

It will take a while for a GPS to get a lock from a cold start, though.
Unless you stop the thief the moment they start moving it, it's too late.
If it's gone 5 meters, they're probably already _on_ the bike, and thus
able to outdistance you anyway.

-Nick


 
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Önder Vincent Koç  
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 More options Aug 23 2012, 11:54 am
From: Önder Vincent Koç <kocon...@gmail.com>
Date: Thu, 23 Aug 2012 16:54:06 +0100
Local: Thurs, Aug 23 2012 11:54 am
Subject: Re: [london-hack-space] Bike Theft Challenge

It differs allot from bikes to bikes as bikes come in all shapes and sizes.

I think alarms as such are pointless as even if it was ditched it would be
going off say when im abroad and wont fix the problem. Also id say that the
aduino with bt to a phone is not that great as i usually have it locked in
an area and walk way away from it... say work or shopping or somewhere in a
park someplace, i wont allways have phone battery or be able to be in
reaching distance.

Can we not use RF/CB something along those lines which has a far longer
range and more practical to work with to alert the user?

On 23 August 2012 16:45, Paul Randle-Jolliffe <p...@patrocinium.eu> wrote:


 
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Howard Alistair Mitchell  
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 More options Aug 23 2012, 12:01 pm
From: Howard Alistair Mitchell <ha.mitchell.mob...@gmail.com>
Date: Thu, 23 Aug 2012 17:01:00 +0100
Subject: Re: [london-hack-space] Bike Theft Challenge

favour an alert (your option 2?!), using a vibration sensor /
accelerometer, which is turned on (or 'armed') by the cyclist once the
bicycle is parked

ps.

There is already a (well-developed) GPS tracker product out there:
http://www.integratedtrackers.com/GPSTrack/

Related conversation here:
http://www.lfgss.com/thread4038.html

On 23 August 2012 16:34, Nick Leaton <nic...@gmail.com> wrote:

--
(sent from my mobile computer/phone, please excuse my brievty)

Howard Alistair Mitchell

ha.mitchell.*mobi...@gmail.com <ha.mitchell.mob...@gmail.com>

ha.mitchell.*ho...@virginmedia.com <ha.mitchell.h...@virginmedia.com>


 
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Howard  
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 More options Aug 23 2012, 12:04 pm
From: Howard <ha.mitchell.mob...@gmail.com>
Date: Thu, 23 Aug 2012 09:04:13 -0700 (PDT)
Local: Thurs, Aug 23 2012 12:04 pm
Subject: Re: [london-hack-space] Bike Theft Challenge

reckon to make the sensor unit as small as possible with a decent power
source, then give it to the cyclist to attach wherever they fancy (using
tape /Velcro), say under the seat might be the best hiding place,

re. GPS trackers:
http://www.integratedtrackers.com/GPSTrack/


 
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Howard  
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 More options Aug 23 2012, 12:08 pm
From: Howard <ha.mitchell.mob...@gmail.com>
Date: Thu, 23 Aug 2012 09:08:46 -0700 (PDT)
Local: Thurs, Aug 23 2012 12:08 pm
Subject: Re: [london-hack-space] Bike Theft Challenge

hmm, interesting, so say an Android phone is used as the sensor-unit
(instead of Ardurino+sensors+BT), how would the program be built - using an
app - via the Android Developer Toolkit thing?

you reckon that's easier than the Arduino route?!

from a conversation at the weekend, it was suggested that using a Raspberry
Pi could be easier (more plug+play!) than Arduino,


 
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Howard  
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 More options Aug 23 2012, 12:14 pm
From: Howard <ha.mitchell.mob...@gmail.com>
Date: Thu, 23 Aug 2012 09:14:21 -0700 (PDT)
Local: Thurs, Aug 23 2012 12:14 pm
Subject: Re: [london-hack-space] Bike Theft Challenge

hey Vinny,

RF deffo has potential, I bought an example of such from Taiwan,
http://t-plan.en.alibaba.com/product/466318565-210353574/Bicycle_Alar...

It was a bit naff/rubbish, but the range was very impressive, eg. it
alerted me of anybody going near my bicycle whilst I was inside Hackspace,
with my bicycle parked outside Hackspace on those metal bars.

My view is that an alerter is only useful if you're within close enough
distance to get to the bicycle quickly, hence BT might actually be good
enough, especially if it gets longer range in new iterations (e.g. the new
iPhone i've heard),

Howard


 
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Eugene Nadyrshin  
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 More options Aug 23 2012, 12:15 pm
From: Eugene Nadyrshin <menta...@gmail.com>
Date: Thu, 23 Aug 2012 17:15:14 +0100
Local: Thurs, Aug 23 2012 12:15 pm
Subject: Re: [london-hack-space] Bike Theft Challenge

I actually got a basic $3.5 alarm from DealExtreme
<http://www.dealextreme.com/p/vibration-activated-120db-bicycle-anti-t...>
for a friend who kept getting his bikes nicked from Sutton station, ever
since he put the alarm on he's not had a bike stolen, so they do work.

Bluetooth range is too puny, I tried the nordic nRF24 modules on tuesday
running at 250Kbps and 8bit CRC and I didn't even manage to walk half
way to the stairwell from the hackspace door before the signal was cut
(hackspace is possibly the worst environment for 2.4Ghz signal, but
still a good test).

I want to try one of those 433Mhz modules to see how much range I could
get out of them even 300bps is more than sufficient as all that's needed
is a keep-alive and basic signal if it's being stolen or not.. Sol
mentioned he got to the edge of the car park with it without much
optimisation so it looks promising (if anyone have a pair I can use to
test please let me know!)

I think the GPS, Android, Pi solutions are an overkill to be honest and
I think it makes sense to get a simplest prototype that does the job
well. A mate of mine had a motorbike stolen with a tracker fitted and
police did nothing (was in a dodgy area apparently), I doubt they will
even bother with a push bike!

On 23/08/12 16:54, �nder Vincent Ko� wrote:


 
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Alexander Halford  
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 More options Aug 23 2012, 12:21 pm
From: Alexander Halford <alexanderhalf...@googlemail.com>
Date: Thu, 23 Aug 2012 17:21:51 +0100
Local: Thurs, Aug 23 2012 12:21 pm
Subject: Re: [london-hack-space] Bike Theft Challenge

Has anybody considered powering the device from a battery charged by a small dynamo attached to one of the wheels? It's the same way they used to power the old incandescent bike headlights.

On 23 Aug 2012, at 17:14, Howard <ha.mitchell.mob...@gmail.com> wrote:


 
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Nick Johnson  
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 More options Aug 23 2012, 12:24 pm
From: Nick Johnson <arach...@notdot.net>
Date: Thu, 23 Aug 2012 17:24:23 +0100
Local: Thurs, Aug 23 2012 12:24 pm
Subject: Re: [london-hack-space] Bike Theft Challenge

On Thu, Aug 23, 2012 at 5:08 PM, Howard <ha.mitchell.mob...@gmail.com>wrote:

> hmm, interesting, so say an Android phone is used as the sensor-unit
> (instead of Ardurino+sensors+BT), how would the program be built - using an
> app - via the Android Developer Toolkit thing?

> you reckon that's easier than the Arduino route?!

Given that you want an accelerometer, GPS, battery and cellular(?) radio,
you're not going to find those in a package anywhere cheaper than a cheap
Android cellphone.

And yes, you'd simply write an app in Java using the ADK that does what you
want it to.

-Nick


 
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Big Will  
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 More options Aug 23 2012, 12:25 pm
From: Big Will <william.gilchri...@gmail.com>
Date: Thu, 23 Aug 2012 09:25:06 -0700 (PDT)
Local: Thurs, Aug 23 2012 12:25 pm
Subject: Re: Bike Theft Challenge

> I should think a good way to stop a bike getting nicked, is to put
> effectively a plank of something alongside the bike, which has the required
> grooves to allow the bike bits to fit inside it and get stuck in a
> stationary position.

Then the plank had bits of the edges/outer sides to  allow it to get stuck
when it is taken off the bike rack.  Ti neutralise the lock mechanism, turn
a key inside it and all the locking mechanisms are released and also it can
now shrink down inside itself to become about 6 inches long and be
transportable.

No electronics, just a series of mechanical levers.


 
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Nick Johnson  
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 More options Aug 23 2012, 12:26 pm
From: Nick Johnson <arach...@notdot.net>
Date: Thu, 23 Aug 2012 17:26:29 +0100
Local: Thurs, Aug 23 2012 12:26 pm
Subject: Re: [london-hack-space] Bike Theft Challenge

On Thu, Aug 23, 2012 at 5:15 PM, Eugene Nadyrshin <menta...@gmail.com>wrote:

>  I actually got a basic $3.5 alarm from DealExtreme<http://www.dealextreme.com/p/vibration-activated-120db-bicycle-anti-t...>for a friend who kept getting his bikes nicked from Sutton station, ever
> since he put the alarm on he's not had a bike stolen, so they do work.

I feel obliged to point out that correlation does not imply causation.

I'm just responding to people who want something with a GPS in it - once
you start adding more sensors, it quickly becomes cheaper to use a phone as
your prototyping platform. In fact, even if you want a more basic system
such as you're suggesting, using a phone is probably a good and cheap way
to build initial prototypes anyway.


 
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IrradiatedHaggis  
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 More options Aug 23 2012, 12:49 pm
From: IrradiatedHaggis <hs_t...@codemaven.me>
Date: Thu, 23 Aug 2012 17:49:16 +0100
Local: Thurs, Aug 23 2012 12:49 pm
Subject: Re: [london-hack-space] Re: Bike Theft Challenge

I rather think an immoblization device of some sort would work... If you could stop the pedals or the wheels from turning that would be a pretty good deterrant... In addition to a regular lock.

Obviously a solenoid would take too much power... However maybe a small motor driving a leadscrew or a rack-and pinion of some sort to extend a bar into the the spokes of the main pedal sprocket...  It would still need to be charged from time to time, but I think it could be made to be fairly low power.

Have a usb-like connector (but not usb) with 4 pins. Two power and two data. The user carries a usb-like key that plugs into the bike's frame in a hidden spot. This key would have a ery small low power microcontroller in it. Upon powering up (by inserting it into the frame) it simply transmits a preprogrammed code over the comm lines.  This unlocks the unit. So when the key is removed the device automatically extends the locking arm to immoblize the pedals. When the key is inserted the locking arm is retracted. If built into the frame solidly I think this locking arm would be difficult to defeat mechanically. Electronically you would need to know the unique number and program that into another microcontroller... 

Obviously you would combine this with a normal lock. Power consumption would only be when locking or unlocking, so it could last quite a while on a charge, but still there is power to think about... Solar or wheel-generator based mechanisms could work...

Hmmm... Anyway, that's my thoughs.

Cheers,
Troy

Sent from Samsung tablet

Big Will <william.gilchri...@gmail.com> wrote:

I should think a good way to stop a bike getting nicked, is to put effectively a plank of something alongside the bike, which has the required grooves to allow the bike bits to fit inside it and get stuck in a stationary position.

Then the plank had bits of the edges/outer sides to  allow it to get stuck when it is taken off the bike rack.  Ti neutralise the lock mechanism, turn a key inside it and all the locking mechanisms are released and also it can now shrink down inside itself to become about 6 inches long and be transportable.

No electronics, just a series of mechanical levers.


 
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David Murphy  
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 More options Aug 23 2012, 12:51 pm
From: David Murphy <murphy.da...@gmail.com>
Date: Thu, 23 Aug 2012 17:51:44 +0100
Local: Thurs, Aug 23 2012 12:51 pm
Subject: Re: [london-hack-space] Re: Bike Theft Challenge

take seat. put it in your bag. make sure the tube the seat sits on is very
sharp.

leave one pedal loose.

to recover bike follow the trail of blood.

On Thu, Aug 23, 2012 at 5:49 PM, IrradiatedHaggis <hs_t...@codemaven.me>wrote:


 
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Nick Johnson  
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 More options Aug 23 2012, 12:55 pm
From: Nick Johnson <arach...@notdot.net>
Date: Thu, 23 Aug 2012 17:55:49 +0100
Local: Thurs, Aug 23 2012 12:55 pm
Subject: Re: [london-hack-space] Re: Bike Theft Challenge

The problem with any solution like this is that bikes are light and
portable. A thief can pick up the bike, put it on their shoulder, and walk
off with it - or load it into the back of a van - and attack the security
mechanisms at their leisure.

I think any workable solution has to ultimately involve attaching your bike
to a stationary object.

-Nick

On Thu, Aug 23, 2012 at 5:49 PM, IrradiatedHaggis <hs_t...@codemaven.me>wrote:


 
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Önder Vincent Koç  
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 More options Aug 23 2012, 12:56 pm
From: Önder Vincent Koç <onder....@loopholestudios.co.uk>
Date: Thu, 23 Aug 2012 17:56:31 +0100
Local: Thurs, Aug 23 2012 12:56 pm
Subject: Re: [london-hack-space] Bike Theft Challenge

Troy i think u might of hit the jackpot here :)

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Many Thanks,

Vincent

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Mark Simpkins  
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 More options Aug 23 2012, 12:59 pm
From: Mark Simpkins <msimpk...@gmail.com>
Date: Thu, 23 Aug 2012 17:59:02 +0100
Local: Thurs, Aug 23 2012 12:59 pm
Subject: Re: [london-hack-space] Re: Bike Theft Challenge

Which is where a lot of the bikeoff.org work concentrated on. Making the
bikes more reliant on complex tech does not work so well when you can
easily move it and work on the mechanisms.

The Vexed/Biomega folding bike was interesting, the lock was part of the
bike frame, if it was cut it made the bike essentially useless. You could
get it fixed, but only at certain places and had to prove ownership etc..
again, still flaws...

On 23 August 2012 17:55, Nick Johnson <arach...@notdot.net> wrote:

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IrradiatedHaggis  
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 More options Aug 23 2012, 1:07 pm
From: IrradiatedHaggis <hs_t...@codemaven.me>
Date: Thu, 23 Aug 2012 18:07:22 +0100
Local: Thurs, Aug 23 2012 1:07 pm
Subject: Re: [london-hack-space] Re: Bike Theft Challenge

I agree. You will never make a bike unstealable... But you can make it not worth the effort. If a person needs to have a vehicle to load it on to then they're a serious organsized theif and not an opportunist.  Those organised theives are going to target expensive high-value bikes and probably collect a few in a day and then take them back to work on.... But if they have to spend hours 'hacking' a bike, is it worth it? I think 90% of your theifs are opportunits who will give up if a bike doesn't move.... And those serious theives are going to be looking at whether something is worth their time to attack, or move on... Chances are they might grab the bike, take it away, and realize that they can't easily 'fix' it and so just dump it somewhere.... But I think ultimately they'd look for easy targets and skip ones that they know will take effort.

It needs a blinking LED to indicate when the immmobilier is engaged.

Cheers,
Troy

Sent from Samsung tablet

Nick Johnson <arach...@notdot.net> wrote:

The problem with any solution like this is that bikes are light and portable. A thief can pick up the bike, put it on their shoulder, and walk off with it - or load it into the back of a van - and attack the security mechanisms at their leisure.

I think any workable solution has to ultimately involve attaching your bike to a stationary object.

-Nick

On Thu, Aug 23, 2012 at 5:49 PM, IrradiatedHaggis <hs_t...@codemaven.me> wrote:

I rather think an immoblization device of some sort would work... If you could stop the pedals or the wheels from turning that would be a pretty good deterrant... In addition to a regular lock.

Obviously a solenoid would take too much power... However maybe a small motor driving a leadscrew or a rack-and pinion of some sort to extend a bar into the the spokes of the main pedal sprocket...  It would still need to be charged from time to time, but I think it could be made to be fairly low power.

Have a usb-like connector (but not usb) with 4 pins. Two power and two data. The user carries a usb-like key that plugs into the bike's frame in a hidden spot. This key would have a ery small low power microcontroller in it. Upon powering up (by inserting it into the frame) it simply transmits a preprogrammed code over the comm lines.  This unlocks the unit. So when the key is removed the device automatically extends the locking arm to immoblize the pedals. When the key is inserted the locking arm is retracted. If built into the frame solidly I think this locking arm would be difficult to defeat mechanically. Electronically you would need to know the unique number and program that into another microcontroller... 

Obviously you would combine this with a normal lock. Power consumption would only be when locking or unlocking, so it could last quite a while on a charge, but still there is power to think about... Solar or wheel-generator based mechanisms could work...

Hmmm... Anyway, that's my thoughs.

Cheers,
Troy

Sent from Samsung tablet

Big Will <william.gilchri...@gmail.com> wrote:

I should think a good way to stop a bike getting nicked, is to put effectively a plank of something alongside the bike, which has the required grooves to allow the bike bits to fit inside it and get stuck in a stationary position.

Then the plank had bits of the edges/outer sides to  allow it to get stuck when it is taken off the bike rack.  Ti neutralise the lock mechanism, turn a key inside it and all the locking mechanisms are released and also it can now shrink down inside itself to become about 6 inches long and be transportable.

No electronics, just a series of mechanical levers.


 
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