http://www.techanorak.com/15/help-with-supermarket-shopping-cart-theft-deterrent-systems/ Articles and discussion on ecommerce solutions Sun, 01 Jan 2012 14:54:01 +0000 hourly 1 http://wordpress.org/?v=3.1.2 http://www.techanorak.com/15/help-with-supermarket-shopping-cart-theft-deterrent-systems/comment-page-1/#comment-862 dtwarwick Wed, 18 Nov 2009 19:17:46 +0000 http://www.techanorak.com/15/help-with-supermarket-shopping-cart-theft-deterrent-systems/#comment-862 There is nothing special about the wire, it is basically just an antenna. The system works the way many proximity systems do. A low-power radio signal is put on the perimeter wire, and a receiver is placed on each cart. If the cart gets too close to the wire, the receiver triggers a wheel lock. You then have to use a remote control transmitter with a different signal to tell the receiver to release the lock. I don't know where you can buy the system, but you can probably get someone local to make one for you. The wheel locks themselves could be made from a simple plate with holes and a solenoid driven by the receiver unit (which would then push a metal rod through the holes when triggered). Of course, you'd need a shroud to cover the thing too. There is nothing special about the wire, it is basically just an antenna. The system works the way many proximity systems do. A low-power radio signal is put on the perimeter wire, and a receiver is placed on each cart. If the cart gets too close to the wire, the receiver triggers a wheel lock. You then have to use a remote control transmitter with a different signal to tell the receiver to release the lock. I don’t know where you can buy the system, but you can probably get someone local to make one for you. The wheel locks themselves could be made from a simple plate with holes and a solenoid driven by the receiver unit (which would then push a metal rod through the holes when triggered). Of course, you’d need a shroud to cover the thing too.

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