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There have been some PC-based systems that use the presence/absence of a Bluetooth device to drive behavior (see link, and links within).
Why limit it to the PC? I’d like to see a self-contained Bluetooth "wall wart" that is simply designed to detect the presence of certain other Bluetooth devices,
and relay that fact as a signal of some kind. These devices should be cheap and small enough that you can put one in each room of your house to act as the controller for that room or zone.
One useful output would be to send an X10 control signal. Thus, by walking in to your house, the lights would go on simply by detecting the presence of your Bluetooth-equipped mobile phone. If you simply keep your cell phone with you as you move about the house, the home can react to where you are automatically. (Many people in the US are getting rid of their conventional wired phone and only using mobile phones).
Other outputs are possible as well. A version of the wall wart could have a pass-through electrical outlet on the front. Plug a lamp in here, and control it directly without the need for X10 modules.
Again, yes you can do this now with a PC. But leaving a PC on 24 hours a day can be problematical if you are energy conscious, and I doubt you want to have a PC in every room of your house.
Bluetooth presence
http://www.halfbake...luetooth_20presence
related idea by [thorsent], see also link within [krelnik, Oct 04 2004, last modified Oct 05 2004]
(?) Recent (07/2004) news article
http://www.seacoast.../biz_nati/27512.htm
"...Mexico’s attorney general and at least 160 people in his office...have been implanted with microchips that get them access to secure areas of their headquarters." [phoenix, Oct 04 2004, last modified Oct 21 2004]
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You can do this with motion sensors, but I guess your cat could too... |
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It only has a range of about 30 feet, and if my experience with WiFi is any guide, walls should cut that considerably. If this is a problem, a radio power control could be included. The markings on the control would indicate the size of the room. |
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Won't your detectors detect each other? |
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Every Bluetooth device has a "profile", i.e. a headset knows it is a headset and broadcasts that fact to other devices. These devices would ignore any devices having their own profile. |
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You could use the profiles like the keys in some new cars where each person has a key that adjust the mirrors and seats for them when they put in their key. When I went into a room by myself the temp would adjust to how I like it. When My whife goes in it will adjust for her. When we are both in the room at the same time it adjust to a preset compromise. This could be used for flat pannel wall art as well. In a few years we can all live like Bill Gates |
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All this has been done with RFID. In fact, RFID makes more sense as a personal identifier since the tag can be subcutaneous. |
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I really don't want to have surgery (even out-patient surgery) in order to have my lights come on automatically. <grin> |
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//Every Bluetooth device has a "profile"...//
Common sense really. Shows how much I know about Bluetooth. |
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