Portable motion detector and alarm system and method
First Claim
1. An inertial sensor comprising a piezoelectric transducer having a support diaphragm carrying a piezoelectric element and a defined periphery, said inertial sensor further including a mass having a rounded mass surface configured for inherent rolling motion, said rounded mass surface being secured to a mass-carrying surface of either said support diaphragm or said piezoelectric element for restrained rolling on said mass-carrying surface, so that said mass flexes said piezoelectric element as said mass rolls in response to an acceleration that induces said rolling motion, a substantial portion of said mass being disposed within said periphery of said piezoelectric transducer, and said rounded mass surface being secured to said mass-carrying surface at a location on said mass-carrying surface that lies along a central orthogonal axis that extends through a center of gravity of said mass and is orthogonal to said mass-carrying surface.
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Accused Products
Abstract
A portable security alarm system including a movement detecting and signal transmitting member for mounting on or proximate to the object whose movement is to be detected, a signal receiving and alarm generating member for receiving a signal from the movement detecting and signal transmitting member and producing a security response, a remote control for actuating and deactuating the signal receiving and alarm generating member, an environmental monitoring member for sensing an environmental condition and providing a signal to the signal receiving and alarm generating member, a visual information gathering member for gathering visual information and providing a signal to the signal receiving and alarm generating member, an audio output member for receiving a signal from the signal receiving and alarm generating member and generating an audio output, and components for delivering a security notification to remote recipients. A security network that includes the alarm system is also disclosed. An inertial sensor for alarm system or for activating or deactivating a device is additionally disclosed.
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Citations
30 Claims
- 1. An inertial sensor comprising a piezoelectric transducer having a support diaphragm carrying a piezoelectric element and a defined periphery, said inertial sensor further including a mass having a rounded mass surface configured for inherent rolling motion, said rounded mass surface being secured to a mass-carrying surface of either said support diaphragm or said piezoelectric element for restrained rolling on said mass-carrying surface, so that said mass flexes said piezoelectric element as said mass rolls in response to an acceleration that induces said rolling motion, a substantial portion of said mass being disposed within said periphery of said piezoelectric transducer, and said rounded mass surface being secured to said mass-carrying surface at a location on said mass-carrying surface that lies along a central orthogonal axis that extends through a center of gravity of said mass and is orthogonal to said mass-carrying surface.
- 28. A combination comprising an inertial sensor disposed in a movement detecting and transmitting trigger, said trigger comprising an attachment device for attaching said trigger to an object whose movement is to be detected, said combination further including a security system that receives a wireless transmission of a security signal from said trigger when said sensor detects movement of said object, said security signal comprising a trigger identifier and said security system associating said trigger identifier with an object identifier and said security system having a communication interface for sending a security alert comprising said object identifier to a remote endpoint using one or more of a telephone number, an IP address, or an email address in response to said sensor detecting said movement.
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30. In combination, an inertial sensor disposed in a movement detecting and transmitting trigger, said trigger comprising an attachment device for attaching said trigger to an object whose movement is to be detected, said combination further including a security system that receives a wireless transmission of a security signal from said trigger when said sensor detects movement of said object, said security signal comprising a trigger identifier and said security system associating said trigger identifier with an object identifier and said security system having a communication interface for sending a security alert to a remote endpoint using one or more of a telephone number, an IP address, or an email address in response to said sensor detecting said movement, said security alert comprising said object identifier specifying a name of said object and a visual image of said object.
Specification