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196results about "Burglar alarm by glass breaking" patented technology

Intelligent door and window anti-invasion system

The invention discloses an intelligent door and window anti-invasion system which comprises a video collecting module, an audio collecting module, a heat releasing infrared detecting and alarming module, a vibration detecting module, a glass crushing detecting module, a door magnetic detecting module, a signal processing module, an alarming transmitting module and a power supply managing module. According to the intelligent door and window anti-invasion system, possible illegal invasion behaviors in door and window areas are found through a multi-dimensional detecting manner. Illegal invasions or guest visiting or normal coming in and going out by the head of a household can be accurately recognized. Pictures of visiting of a guest are sent to terminals like a cellphone of a host at home or real-time and intuitional alarming signals with audio and video or pictures as carriers are sent to alarming receiving and processing terminals such as the cellphone of the head of the household, a residential area monitoring computer and the like. Meanwhile, alarm lamps and alarm signals are linked so as to achieve sound-light alarming in a field where an incident happens, or other relevant devices are linked. In addition, the intelligent door and window anti-invasion system is arranged outdoors so that illegal invasions are wiped out to the largest degree before the illegal invasions actually happen.
Owner:CHENGDU BESTVISION TECH

Flip type lifting show case

The invention relates to a flip type lifting show case, which is characterized by comprising a case body with an upper opening, a lifting show platform, a flip rotatably connected to the top of the case body, two support rods and two slide rods, wherein bolt holes are arranged on two inner walls corresponding to the upper opening; an upper bolting structure is arranged in the flip; a lower bolting structure is arranged in the lifting show platform; the upper ends of the two support rods are respectively hinged to the left and the right sides of the back surface of the flip and are used for supporting and opening the flip; the two slide rods are respectively and vertically inserted on the left and the right sides of the lifting show platform and can slip upwards and downwards; the upper end of each slide rod is respectively articulated with the lower end of the corresponding support rod; a lock concave pit is arranged on the lower part of the external end surface of each slide rod; lock seats with traverse lock holes are arranged on two sides of the lifting show platform; and lock steel balls which is pushed by springs to keep a stretching trend are arranged in the traverse lock holes. The flip type lifting show case has the advantages of novel structure and good safety, and is suitable for shows.
Owner:宁波永发智能安防科技有限公司

Alarm chip and use of the alarm chip

An alarm chip (10) and the use of the alarm chip (10) for giving warning of burglary or undesired entry into buildings, installations or structures, preferably by so-called shell-protection of the building, installation or structure, the alarm chip (10) detecting, by means of an associated accelerometer, motions / vibrations in the object to which the alarm chip (10) is fixedly arranged, the object being formed of e.g. a window (2), a door, possibly a frame or casing connected to the window (2) or door, wherein the motions / vibrations are converted by means of the accelerometer into an outgoing flow of acceleration values, which are further processed, by means of a processor in a signal processing circuit, in which, by means of algorithms, the acceleration values are recognized and separated into either output alarm signals or output non-alarm signals, and in which output signals may be coded / encrypted, so that each alarm chip (10) has i.a. a unique address and identity, and in which the signals are possibly also output in the form of signal pulses, preferably in a so-called pseudo-random order, the output signals being transmitted, preferably in a wireless manner, to at least one central and / or external alarm unit / alarm system arranged to the building, installation or structure.
Owner:NORDAN

Method of eliminating impact/shock related false alarms in an acoustical glassbreak detector

Apparatus for detecting the breaking of a contact-sensitive surface includes an acoustic, shock, and vibration transducer, a detector circuit responsive to the transducer for detecting an acoustic wave resulting from a contact force applied to the surface and generating a signal, a support for the transducer, and the means for disqualifying a contact force to the support as a breakage event that relies on differentiation of the speed with which a shock wave travels through a solid material versus the speed with which an acoustic wave travels through air. The transducer may include a front electret condenser microphone and in some preferred embodiments the microphone does not have a preamplifier associated therewith. The invention also includes the method for detecting the breaking of a contact-sensitive surface that includes providing an acoustic, shock, and vibration transducer, providing a support for the transducer, providing a detector circuit responsive to the transducer for detecting an acoustic wave resulting from a contact force applied to the surface and generating a signal; and providing means for disqualifying a contact force to the support as a breakage event that relies on differentiation of the speed with which a shock wave travels through a solid material versus the speed with which an acoustic wave travels through air.
Owner:ADEMCO INC

Method of eliminating impact/shock related false alarms in an acoustical glassbreak detector

Apparatus for detecting the breaking of a contact-sensitive surface includes an acoustic, shock, and vibration transducer, a detector circuit responsive to the transducer for detecting an acoustic wave resulting from a contact force applied to the surface and generating a signal, a support for the transducer, and the means for disqualifying a contact force to the support as a breakage event that relies on differentiation of the speed with which a shock wave travels through a solid material versus the speed with which an acoustic wave travels through air. The transducer may include a front electret condenser microphone and in some preferred embodiments the microphone does not have a preamplifier associated therewith. The invention also includes the method for detecting the breaking of a contact-sensitive surface that includes providing an acoustic, shock, and vibration transducer, providing a support for the transducer, providing a detector circuit responsive to the transducer for detecting an acoustic wave resulting from a contact force applied to the surface and generating a signal; and providing means for disqualifying a contact force to the support as a breakage event that relies on differentiation of the speed with which a shock wave travels through a solid material versus the speed with which an acoustic wave travels through air.
Owner:ADEMCO INC
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