Method of an apparatus for sensing the unauthorized movement of vehicles and the like and generating an alarm or warning of vehicle theft
First Claim
1. A method of unauthorized vehicle motion sensing and alarm with the aid of in vehicle acceleration sensors, that comprises,monitoring the presence or absence of predetermined periodic radio-frequency pulse transmissions from an authorized source in the vicinity of the vehicle;
- in the event that such transmissions are present, receiving the transmissions in the vehicle; and
disarming or de-activating the acceleration sensors;
in the absence of such reception, arming or activating the acceleration sensors in the vehicle to test for any acceleration of the vehicle by unauthorized motion thereof over predetermined time period samples;
in the event such vehicle acceleration is detected by the accelerator sensors, sending a wireless alarm message for so informing the vehicle owner;
after a further predetermined longer period of time during said activating of the acceleration sensors wherein no motion of the vehicle has been detected, disarming or deactivating the acceleration sensors to put them in a sleep mode and conserve activation energy;
upon the advent of vibration detection at the vehicle during such sleep mode, awakening and re-arming or re-activating the acceleration sensors;
and again disarming or de-activating the acceleration sensors upon the later advent of the reception of said transmissions in the vehicle.
21 Assignments
0 Petitions
Accused Products
Abstract
An improved motion sensing and alarm technique and apparatus for monitoring unauthorized movement of vehicles or the like and notifying the owner thereof, wherein the motion sensors in the vehicle are microprocessor controlled to be automatically armed when the owner is not in the vicinity of the vehicle, but disarmed or de-activated in the presence of the owner and the owner'"'"'s radio-coded identification transmitter associated with the owner'"'"'s key fob, and with energy saving features as well.
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Citations
21 Claims
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1. A method of unauthorized vehicle motion sensing and alarm with the aid of in vehicle acceleration sensors, that comprises,
monitoring the presence or absence of predetermined periodic radio-frequency pulse transmissions from an authorized source in the vicinity of the vehicle; -
in the event that such transmissions are present, receiving the transmissions in the vehicle; and disarming or de-activating the acceleration sensors; in the absence of such reception, arming or activating the acceleration sensors in the vehicle to test for any acceleration of the vehicle by unauthorized motion thereof over predetermined time period samples; in the event such vehicle acceleration is detected by the accelerator sensors, sending a wireless alarm message for so informing the vehicle owner; after a further predetermined longer period of time during said activating of the acceleration sensors wherein no motion of the vehicle has been detected, disarming or deactivating the acceleration sensors to put them in a sleep mode and conserve activation energy; upon the advent of vibration detection at the vehicle during such sleep mode, awakening and re-arming or re-activating the acceleration sensors; and again disarming or de-activating the acceleration sensors upon the later advent of the reception of said transmissions in the vehicle. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. Apparatus for unauthorized vehicle motion sensing and alarm having, in combination, a vehicle-carried radio receiver for monitoring the presence or absence of predetermined periodic radio-frequency pulse transmissions from an authorized source in the vicinity of the vehicle;
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microprocessor-controlled vehicle acceleration sensors carried by the vehicle and responsive in the absence of reception of said transmissions by the receiver, for reception of said transmissions by the receiver, for arming or activating the acceleration sensors in the vehicle to test for any acceleration of the vehicle by unauthorized motion thereof over predetermined time period samples; in the event such vehicle acceleration is detected by the accelerator sensors, means for sending a wireless alarm message for so informing the vehicle owner; the microprocessor, after a further predetermined longer period of time during said activating of the acceleration sensors wherein no motion of the vehicle has been detected, controlling the disarming or deactivating of the acceleration sensors to put them in a sleep mode and conserve activation energy, and further operable, upon the advent of vibration detection at the vehicle during such sleep mode, for awakening and re-arming or re-activating the acceleration sensors; and
means controlled by the microprocessor for again disarming or de-activating the acceleration sensors upon the later advent of the reception of said transmissions in the vehicle by said receiver. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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Specification