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Intelligent theft-proof door bell

An anti-theft doorbell and intelligent technology, applied to instruments, alarms, etc., can solve problems such as difficult maintenance, simple structure and single function, complex wiring, etc.

Inactive Publication Date: 2003-10-22
厦门市南孚贸易有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Existing door and window alarms and doorbells are all separated, and the structure is simple and the function is single
Alarms with more complete functions have complicated circuits and are not easy to overhaul

Method used

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Examples

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Embodiment Construction

[0013] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0014] Such as figure 1 , 2 , Shown in 3, the present invention preferably adopts PIC509 single-chip microcomputer, and other circuit parts all surround single-chip microcomputer. Utilizing the feature that the various states of each port of this type of single chip microcomputer and the relationship between them are controlled by programming, the electric signal generated by the piezoelectric effect when the piezoelectric ceramic BJ2 induces vibration (sound) is used to enter the triode through the reed switch S1 Q2 amplifies and finally enters the GP3 port of PIC509, which is used as a vibration signal input; the password input switch S2 is connected to the GP1 port of PIC509, and the GP1 port is the input port to enter the password; the displacement reed switch S1 is connected to the GP0 port of PIC509, and the GP0 port The input port is the displa...

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PUM

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Abstract

The invention discloses a kind of intelligent theft-proof door bell, it uses single-chip as the signal identifying and processing centre, the invention can distinguish the knock sound through programming and send out the bell sound. It can also distinguish abnormal movement and shock, then sends out alarm. It realizes the bell and the theft-proof alarm. It simplifies the circuit by using single chip, and enhances the stability and accuracy of the product.

Description

technical field [0001] The invention relates to an intelligent anti-theft doorbell which is suitable for doors and windows and can double as a doorbell. Background technique [0002] Existing door and window alarms and doorbells are all separated, and have a simple structure and a single function. Alarms with more complete functions have complicated circuits and are not easy to overhaul. Contents of the invention [0003] Aiming at the shortcomings of existing alarms and doorbells, the present invention proposes an anti-theft doorbell that uses a single-chip microcomputer to realize the combination of the doorbell and the anti-theft device through programming, and does not need to set a doorbell button outside the door, just knock on the door. Trigger the doorbell and save visitors the hassle of finding the doorbell button. [0004] The technical solution adopted by the present invention to solve its technical problems is: the intelligent anti-theft doorbell of the prese...

Claims

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Application Information

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IPC IPC(8): G08B21/00
Inventor 何志雄
Owner 厦门市南孚贸易有限公司