Mohamed Buhmaid Posted July 9, 2005 Report Share Posted July 9, 2005 Good Day To you AllDuring risk assessment of crane remote control operability range, it was found that the remote it operates the crane even from outside hall. Therefore, it was found it's not safe to operate the crane out of vicinity, remote control supplier was approached for reducing the range which they confirmed it's not possible. we have an idea of modifying the remote with sound alarm whenever the remote is taken out side the hall. Or whenever the remote is out the hall the remote power supply has to be switched off automatically.So please if u have an idea of implementation this idea or how to build such this circuit, or if u have any idea where to find an equipment to do this (reducing freq. range or the above suggestions.please as soon as possible. Quote Link to comment Share on other sites More sharing options...
ante Posted July 9, 2005 Report Share Posted July 9, 2005 Hi MAA,Welcome to our forum.Why not use the same kind as used in a department store to protect from theft. You put one of those “radar reflector” tags on the remote and the sensor equipment by the door (doors). This might also be the safest way since you do not have to tamper with the remote control circuit. Quote Link to comment Share on other sites More sharing options...
Mohamed Buhmaid Posted July 9, 2005 Author Report Share Posted July 9, 2005 Hi Antemany thanks to u, We r not afraid from theft, but we don't want the remote control to operate outside the hall or at least to give an alarm for safety reasons. Thats it ;)Thank u again Quote Link to comment Share on other sites More sharing options...
ante Posted July 9, 2005 Report Share Posted July 9, 2005 Well, it won’t be too hard to use the output from the sensors to just alert the person carrying the remote or if you like switch of the power to the crane when the remote leaves the room. Quote Link to comment Share on other sites More sharing options...
Mohamed Buhmaid Posted July 10, 2005 Author Report Share Posted July 10, 2005 Hi,I have an idea of a circuit with a range of frequencey suitable for that hall and whenever the remote control is out side the hall there will be a signal to cutt off the power supply from the remote control.So if u can improve the idea.I don't know it may work or not just an idea!! Quote Link to comment Share on other sites More sharing options...
ante Posted July 10, 2005 Report Share Posted July 10, 2005 Hi MAA,Which ever way you chose, it’s never safe to modify or tamper with the original circuit! Keep the circuits separately or someone might get hurt. Quote Link to comment Share on other sites More sharing options...
hotwaterwizard Posted July 11, 2005 Report Share Posted July 11, 2005 how about a Dog Training collar that will sound off an alarm.Indoor containment systemhttp://www.americas-pet-store.com/products/catid/66.html Quote Link to comment Share on other sites More sharing options...
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