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Anonymous Poster

Transmitters & Receivers - Distance Activation

07/09/2010 9:58 AM

Can anyone help me as to build a system where, if the receiver reaches a specific distance from the transmitter, it automatically activates an electrical charge. Your help will be appreciated.
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KJK/USA
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United States - Member - Member Engineering Fields - Electrical Engineering - Electrical Construction

Join Date: Apr 2010
Location: Mid Western USA - The Corn Belt
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#1

Re: Transmitters & Receivers operating wireless through distance activation

07/09/2010 11:33 AM

Sounds like your looking for a similar (although reverse) concept to an invisible doggie fence. If so, check out this link:

http://www.homedepot.com/webapp/wcs/stores/servlet/ProductDisplay?storeId=10051&productId=100660373&langId=-1&catalogId=10053&ci_sku=100660373&ci_src=64119933&cm_mmc=shopping-_-googleads&locStoreNum=1950&marketID=234

Some searching (Google perhaps) on your part my produce some schematics.

Good Luck!

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mjb1962853
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Engineering Fields - Electrical Engineering - Analog and Digital Circuit Design Engineering Fields - Electromechanical Engineering - Transformers, Motors & Drives, EM Launchers Engineering Fields - Engineering Physics - Applied Electrical, Optical, and Mechanical

Join Date: Jan 2008
Location: NY
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#2

Re: Transmitters & Receivers - Distance Activation

07/09/2010 1:59 PM

Retail products already exist which may suit your application. One example:

http://www.tbotech.com/child-guard.htm

I sure hope this isn't for something like the decapitation collars in "The Running Man"

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