Security device for detecting change of air pressure and method thereof

A safety alarm device, pressure technology, applied in the direction of the alarm that depends on the change of liquid pressure, the alarm that acts on electricity, the alarm, etc.

Inactive Publication Date: 2004-08-04
全舜镛
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] Another problem with prior art security alarm devices using location sensors is that they will alert anyone within range, even if it may be the owner of the house

Method used

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  • Security device for detecting change of air pressure and method thereof
  • Security device for detecting change of air pressure and method thereof
  • Security device for detecting change of air pressure and method thereof

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Embodiment Construction

[0032] Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0033] Although the invention has been shown and described with reference to certain preferred embodiments thereof, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit of the invention as defined by the appended claims and range. Also, well-known functions and constructions are not described in detail since they would obscure the invention in unnecessary detail.

[0034] figure 2 It is a schematic diagram of the composition of the safety alarm device that responds to pressure changes according to the first preferred embodiment of the present invention.

[0035] refer to figure 2 , the safety alarm device of the present invention comprises: a sensor unit 20, the sensor unit 20 monitors the waveform consistent with the pressure change transmitted thr...

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PUM

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Abstract

A security device of the present invention detects change of indoor pressure and converts the change to electric signals (more particularly, voltage signals) with a variety of frequencies by using a sensor unit installed therein, particularly sensing a low frequency that is generated when the door opens among other converted electric signals. Then, when the electric signals corresponding to the low frequency turned out to be caused by intrusion of the object from the outside, the device immediately sound an alarm to notify the intrusion to a user in a remote place. According to the security device and the method thereof, the intrusion of the object from the outside is sensed as the electric signals of the low frequency, and notifies the intrusion to the user to alarm the security.

Description

technical field [0001] The present invention relates to a safety alarm device, in particular, the present invention relates to a safety alarm device and method for monitoring pressure changes, which can monitor the changes in the room, especially the changes in air pressure caused by the intrusion of foreign objects, and can immediately report to the The user notifies the occurrence of the intrusion so that the user can take countermeasures in time, thereby providing the user with a safer living environment. Background technique [0002] figure 1 is a schematic block diagram illustrating the configuration of a prior art security alarm device. [0003] like figure 1 As shown in , a typical safety alarm device includes a position sensor 11 for monitoring any unexpected changes in the surrounding environment, an amplifier 12 for amplifying the electrical signal monitored by the position sensor 11, and an amplifier 12 amplified by the amplifier 12 according to The signal info...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G08B13/02G08B13/16G08B13/20G08B13/26
CPCG08B13/1681G08B13/20
Inventor 金舜镛韩星秀
Owner 全舜镛
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