Article View: sci.electronics
Article #21558Re: Car Detectors for Traffic Lights
From: Randy_Davis
Date: Wed, 31 May 1989 17:23
Date: Wed, 31 May 1989 17:23
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In article <456@antares.UUCP| pnelson@antares.UUCP (Phil Nelson) writes: | I have a related question, can they be activated without the metal mass? |The question has probably been asked before, it must be a common problem |for urban bicyclists; how do you get the left-turn light to change? I |havn't seen any solution though, is everyone waiting for George to do it? Though I would be interested in the "trigger from a distance" answer, Phil's bicycle question is going to be of great interest to motorcyclists also, especially those who ride small bikes. Plus, motorcycles would already have a power source on board.... Though I ride a fairly large bike (650 pound with a steel frame), there are *still* some lights that will ignore me. This can be a real pain if there are no cars approaching from behind to trigger the light for you, thus making me have to run lights after sitting at them for long periods. (Other methods exist, like trying to remember which ones ignore you, or going through the handy service station [which isn't legal either], etc... but this gadget would be nice.) So, if anyone knows a way to fool a light into thinking there is a larger metal mass above the sensor than there actually is, please post!!! Randy Davis UUCP: ...(att!)ocrjd!randy ...(att!)occrsh!rjd
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arc1-ca.pugleaf.net!utzoo!utgpu!jarvis.csri.toronto.edu!rutgers!tut.cis.ohio-state.edu!unmvax!ncar!ames!pacbell!att!occrsh!rjdReferences:
<18811@cup.portal.com| <3185@kitty.UUCP> <456@antares.UUCP>Show Full Headers
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Path: arc1-ca.pugleaf.net!utzoo!utgpu!jarvis.csri.toronto.edu!rutgers!tut.cis.ohio-state.edu!unmvax!ncar!ames!pacbell!att!occrsh!rjd From: rjd@occrsh.ATT.COM (Randy_Davis) Newsgroups: sci.electronics Subject: Re: Car Detectors for Traffic Lights Summary: Motorcyclists would want an answer to this also... Message-ID: <722@occrsh.ATT.COM> Date: 31 May 89 17:23:39 GMT References: <18811@cup.portal.com| <3185@kitty.UUCP> <456@antares.UUCP> Reply-To: rjd@occrsh.UUCP (Randy_Davis) Followup-To: sci.electronics Organization: AT&T Network & Data Systems, OKC Lines: 24