Sound detecting alarm

A sound detection and alarm technology, applied in the field of alarms, can solve problems such as interference

Inactive Publication Date: 2010-04-21
TIANJIN POLYTECHNIC UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Since most alarms use infrared rays as detectors, they wil

Method used

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Embodiment Construction

[0024] A sound detection alarm device of the present invention will be described in detail below in conjunction with the embodiments and the accompanying drawings.

[0025] Such as figure 1 As shown, the sound detection alarm of the present invention adopts a 4.8V rechargeable battery pack as the input voltage of the main working circuit, includes a sound detection module (1), is characterized in that, is also provided with: a single-chip microcomputer control module (2), Voice warning playback circuit (3), wireless sending module (4) and power supply module (5).

[0026] Such as figure 2 As shown, the single-chip microcomputer control module (2) includes a quartz crystal oscillator, a button switch, a metal film resistor, an electrolytic capacitor and a ceramic chip capacitor, wherein the two ends of the quartz crystal oscillator are respectively connected to the X1 and X2 pins of the single-chip microcomputer (2) One end of the two ceramic capacitors is respectively conne...

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Abstract

The invention discloses a sound detecting alarm which comprises a sound detecting module and an SCM control module, wherein the sound detecting module can preset characteristic frequency to be detected by adjusting a knob, detect various characteristic sounds, such as breath sound, footstep sound, impact sound of jewelries, sound emitted by paper medium objects, and the like and generate a trigger signal when detecting the sound at the preset frequency; the SCM control module is used for receiving the trigger signal of the sound detecting module and transmitting a corresponding control command to a voice alarm playing circuit and a wireless transmitting module so that the voice alarm playing circuit and the wireless transmitting module execute an alarm function; the voice alarm playing circuit can prerecord alarm prompting sound and play an alarm prompt under the action of the command of the SCM control module; and the wireless transmitting module transmits wireless information under the action of the command of the SCM control module to realize the effect of long-distance alarm. The invention has simple structure and can be controlled simply, conveniently and flexibly, can intelligently detect the sound at the special frequency, is safe and reliable and is suitable for being popularized and used by families.

Description

technical field [0001] The invention relates to an alarm, in particular to a sensitive sound detection alarm with simple structure, convenient and flexible control, low cost, intelligence, and the ability to detect special frequency sounds. Background technique [0002] Our country is in the primary stage of socialism. While our country's comprehensive national strength is growing rapidly, the quality of the people is also generally improving. However, despite this, crimes such as burglary and burglary are still common. People's personal safety and property safety have been greatly threatened. Since most alarms use infrared rays as detectors, they will be interfered by external factors such as walls and light. For this reason, the present invention proposes a sound detection alarm that is simple in design, convenient in control, low in cost, safe and reliable, and can preset warning voice content, and detects sounds of special frequencies. Contents of the invention [00...

Claims

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Application Information

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IPC IPC(8): G08B13/00G08B3/10G01H17/00
Inventor 高圣伟周悦孔佑迪魏巍
Owner TIANJIN POLYTECHNIC UNIV
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