CN103247124A - Human body induction type burglar alarm with memory function - Google Patents

Human body induction type burglar alarm with memory function Download PDF

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Publication number
CN103247124A
CN103247124A CN2013101718293A CN201310171829A CN103247124A CN 103247124 A CN103247124 A CN 103247124A CN 2013101718293 A CN2013101718293 A CN 2013101718293A CN 201310171829 A CN201310171829 A CN 201310171829A CN 103247124 A CN103247124 A CN 103247124A
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module
triode
resistance
audio alert
diode
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CN2013101718293A
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Chinese (zh)
Inventor
李国强
刘永勤
袁卫
肖令禄
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Weinan Normal University
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Weinan Normal University
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Priority to CN2013101718293A priority Critical patent/CN103247124A/en
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Abstract

The invention discloses a human body induction type burglar alarm with a memory function. The state change of a mechanical lock is inducted and monitored by an oscillator module, the oscillation waveform is generated according to the monitored state change of the mechanical lock, the oscillation waveform voltage value is compared with the set voltage threshold by the voltage value comparing module, the signal is sent out according to the voltage comparing result, the voltage comparing result obtained by the voltage value comparing module is stored and memorized by the memory circuit module, the voice alarm control signal is sent out by the memory circuit module, received and amplified by the driver circuit module, and the amplified voice alarm control signal is sent out; and the oscillation waveform output by the oscillator module and the voice alarm control signal output by the driver circuit module are received by the voice alarm module, and a voice alarm function is achieved. The burglar alarm provided by the invention has a simple structure, is strong in practicability, high in sensitivity, simple to mount, and has better anti-theft function and memory function.

Description

A kind of human body induction type burglar alarm with memory function
Technical field
The invention belongs to the burglar alarm technical field, relate in particular to a kind of human body induction type burglar alarm with memory function.
Background technology
Guard against theft and alarm system is with physical method or electronic technology, surveys the intrusion behavior, the generation alerting signal that occur in the monitored area of deploying troops on garrison duty automatically, and the regional position of pointing out the operator on duty to report to the police.
Existing burglar alarm sensitivity is low, installation is complicated, anti-theft feature is relatively poor.
Summary of the invention
The invention provides a kind of human body induction type burglar alarm with memory function, be intended to solve existing burglar alarm sensitivity low, complicated, the relatively poor problem of anti-theft feature be installed.
The object of the present invention is to provide a kind of human body induction type burglar alarm with memory function, this human body induction type burglar alarm comprises:
Oscillator module is used for the state variation of induction monitoring mechanical door lock, generates waveform according to the state variation of the mechanical door lock of induction monitoring, and the waveform that generates is exported;
Voltage comparison module is connected with described oscillator module, is used for receiving the waveform of described oscillator module output, the waveform magnitude of voltage is compared with the voltage threshold of setting, according to voltage comparative result output memory signal;
The memory circuit module is connected with described voltage comparison module, is used for receiving the memory signal of described voltage comparison module output, and the voltage comparative result that described voltage comparison module obtains is stored memory, and output audio alert control signal;
Drive circuit module is connected with described drive circuit module, is used for receiving described memory circuit module output audio alert control signal, the audio alert control signal is amplified processing, and the audio alert control signal of amplifying after handling is exported;
The audio alert module is connected with described oscillator module and drive circuit module, is used for receiving the waveform of described oscillator module output and the audio alert control signal of drive circuit module output, is used for carrying out audio alert.
Further, the physical circuit of described oscillator module is connected to: metal sensing chip P is connected with capacitor C, an other end part and the inductance L of metal sensing chip P between over the ground 1Connect inductance L 1The other end and ground between be parallel with capacitor C 1, an other end part and the capacitor C of while metal sensing chip P 2Connect capacitor C 2The other end be connected diode D 1With diode D 2End after the parallel connection, diode D 1With diode D 2Other end part after the parallel connection is connected the base stage b of triode BG1, is in series with resistance R between a part and the ground 3, another part directly is connected inverting input 2 pins of voltage comparison module IC1, capacitor C in parallel between the emitter e of triode BG1 and the ground 4With resistance R 4Inductance L 1The other end and the collector c of triode BG1 between be connected with capacitor C 3, diode D 1With diode D 2End after the parallel connection is in series with resistance R 1, potentiometer W 1With resistance R 2After be connected to the collector c of triode BG1, potentiometer W 1With resistance R 2Between the junction be connected to resistance R 5An end, be connected to the audio alert module simultaneously;
The physical circuit of voltage comparison module is connected to: output terminal 1 pin of voltage comparison module IC1 passes through resistance R 6Be connected to the base stage b of triode BG2, the direct ground connection of the emitter e of triode BG2, the collector c of triode BG2 is connected with resistance R 5, be connected with potentiometer W simultaneously 1
The physical circuit of memory circuit module is connected to: diode D 3Output terminal and ground between resistance R in parallel 7With capacitor C 5, resistance R 7With capacitor C 5An end in parallel is connected to resistance R 8
The physical circuit of drive circuit module is connected to: resistance R 8Be connected to the base stage b of triode BG3, the collector c of triode BG3 is connected with the collector c of triode BG4, and the emitter e of triode BG3 is connected to the base stage b of triode BG4, the direct ground connection of the emitter e of triode BG4;
The physical circuit of audio alert module is connected to: relay J and diode D 4Be connected to the collector c junction of collector c and the triode BG4 of triode BG3 after the parallel connection, the direct ground connection of 1 pin of IC2 is connected with resistance R between 4 pins of IC2 and 5 pins 10, 3 pins of IC2 and relay J and diode D 4End after the parallel connection is connected to an end of K switch together, and 6 pins of IC2 are connected to an end of K switch by switch J1-1, and the output terminal of IC2 passes through resistance R simultaneously 9Be connected to the base stage b of triode BG5, the direct ground connection of the emitter e of triode BG5 is connected with hummer between the collector c of triode BG5 and the K switch, is in series with the 6V power supply between the other end of K switch and the ground.
Further, mechanical door lock is as metal sensing chip P.
Human body induction type burglar alarm with memory function provided by the invention, the state variation of oscillator module induction monitoring mechanical door lock, state variation according to the mechanical door lock of induction monitoring generates waveform, the waveform of voltage comparison module reception oscillator module output, the waveform magnitude of voltage is compared with the voltage threshold of setting, according to voltage comparative result output memory signal, the memory circuit module is stored memory to the voltage comparative result that voltage comparison module obtains, and output audio alert control signal, drive circuit module receives memory circuit module output audio alert control signal, the audio alert control signal is amplified processing, and the audio alert control signal after amplify handling exported, the audio alert control signal of the waveform of audio alert module reception oscillator module output and drive circuit module output, the lang sound of going forward side by side is reported to the police; Circuit structure of the present invention is simple, and is practical, highly sensitive, installs simply, has good anti-theft feature and memory function.
Description of drawings
Fig. 1 is the structured flowchart of the human body induction type burglar alarm with memory function that provides of the embodiment of the invention;
Fig. 2 is the circuit theory diagrams of the human body induction type burglar alarm with memory function that provides of the embodiment of the invention.
Among the figure: 11, oscillator module; 12, voltage comparison module; 13, memory circuit module; 14, drive circuit module; 15, audio alert module.
Embodiment
In order to make purpose of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the present invention is further described in detail.Should be appreciated that specific embodiment described herein only in order to explaining the present invention, and be not used in and limit invention.
Fig. 1 and Fig. 2 show the structure of the human body induction type burglar alarm with memory function that the embodiment of the invention provides.For convenience of explanation, only show part related to the present invention.
This human body induction type burglar alarm comprises:
Oscillator module 11 is used for the state variation of induction monitoring mechanical door lock, generates waveform according to the state variation of the mechanical door lock of induction monitoring, and the waveform that generates is exported;
Voltage comparison module 12 is connected with described oscillator module 11, is used for receiving the waveform of described oscillator module 11 outputs, the waveform magnitude of voltage is compared with the voltage threshold of setting, according to voltage comparative result output memory signal;
Memory circuit module 13 is connected with described voltage comparison module 12, is used for receiving the memory signal of described voltage comparison module 12 outputs, and the voltage comparative result that described voltage comparison module 12 obtains is stored memory, and output audio alert control signal;
Drive circuit module 14, be connected with described drive circuit module 14, be used for receiving described memory circuit module 13 output audio alert control signals, the audio alert control signal amplified processing, and the audio alert control signal of amplifying after handling is exported;
Audio alert module 15 is connected with described oscillator module 11 and drive circuit module 14, is used for receiving the waveform of described oscillator module 11 outputs and the audio alert control signal of drive circuit module 14 outputs, is used for carrying out audio alert.
In embodiments of the present invention, the physical circuit of described oscillator module 11 is connected to: metal sensing chip P is connected with capacitor C, an other end part and the inductance L of metal sensing chip P between over the ground 1Connect inductance L 1The other end and ground between be parallel with capacitor C 1, an other end part and the capacitor C of while metal sensing chip P 2Connect capacitor C 2The other end be connected diode D 1With diode D 2End after the parallel connection, diode D 1With diode D 2Other end part after the parallel connection is connected the base stage b of triode BG1, is in series with resistance R between a part and the ground 3, another part directly is connected inverting input 2 pins of voltage comparison module 12IC1, capacitor C in parallel between the emitter e of triode BG1 and the ground 4With resistance R 4Inductance L 1The other end and the collector c of triode BG1 between be connected with capacitor C 3, diode D 1With diode D 2End after the parallel connection is in series with resistance R 1, potentiometer W 1With resistance R 2After be connected to the collector c of triode BG1, potentiometer W 1With resistance R 2Between the junction be connected to resistance R 5An end, be connected to audio alert module 15 simultaneously;
The physical circuit of voltage comparison module 12 is connected to: output terminal 1 pin of voltage comparison module 12IC1 passes through resistance R 6Be connected to the base stage b of triode BG2, the direct ground connection of the emitter e of triode BG2, the collector c of triode BG2 is connected with resistance R 5, be connected with potentiometer W simultaneously 1
The physical circuit of memory circuit module 13 is connected to: diode D 3Output terminal and ground between resistance R in parallel 7With capacitor C 5, resistance R 7With capacitor C 5An end in parallel is connected to resistance R 8
The physical circuit of drive circuit module 14 is connected to: resistance R 8Be connected to the base stage b of triode BG3, the collector c of triode BG3 is connected with the collector c of triode BG4, and the emitter e of triode BG3 is connected to the base stage b of triode BG4, the direct ground connection of the emitter e of triode BG4;
The physical circuit of audio alert module 15 is connected to: relay J and diode D 4Be connected to the collector c junction of collector c and the triode BG4 of triode BG3 after the parallel connection, the direct ground connection of 1 pin of IC2 is connected with resistance R between 4 pins of IC2 and 5 pins 10, 3 pins of IC2 and relay J and diode D 4End after the parallel connection is connected to an end of K switch together, and 6 pins of IC2 are connected to an end of K switch by switch J1-1, and the output terminal of IC2 passes through resistance R simultaneously 9Be connected to the base stage b of triode BG5, the direct ground connection of the emitter e of triode BG5 is connected with hummer between the collector c of triode BG5 and the K switch, is in series with the 6V power supply between the other end of K switch and the ground.
In embodiments of the present invention, mechanical door lock is as metal sensing chip P.
Below in conjunction with drawings and the specific embodiments application principle of the present invention is further described.
As shown in Figures 1 and 2, this human body induction type burglar alarm with memory function comprises: oscillator module 11, voltage comparison module 12, memory circuit module 13, drive circuit module 14 and audio alert module 15.
Oscillator module 11 is used for output waveform, is connected with voltage comparison module 12, audio alert module 15;
Voltage comparison module 12 is used for translation circuit, is connected with memory circuit module 13;
Memory circuit module 13 has memory function, is connected with drive circuit module 14;
Drive circuit module 14 is used for the intermediate circuit that signal to control circuit amplifies, and is connected with audio alert module 15;
Audio alert module 15 is mainly used in audio alert.
The concrete connection of oscillator module 11 is: metal sensing chip P is connected with capacitor C, an other end part and the inductance L of metal sensing chip P between over the ground 1Connect inductance L 1The other end and ground between be parallel with capacitor C 1, an other end part and the capacitor C of while metal sensing chip P 2Connect capacitor C 2The other end be connected diode D 1With diode D 2End after the parallel connection, diode D 1With diode D 2Other end part after the parallel connection is connected the base stage b of triode BG1, is in series with resistance R between a part and the ground 3, another part directly is connected inverting input 2 pins of voltage comparison module 12IC1, capacitor C in parallel between the emitter e of triode BG1 and the ground 4With resistance R 4Inductance L 1The other end and the collector c of triode BG1 between be connected with capacitor C 3, diode D 1With diode D 2End after the parallel connection is in series with resistance R 1, potentiometer W 1With resistance R 2After be connected to the collector c of triode BG1, potentiometer W 1With resistance R 2Between the junction be connected to resistance R 5An end, be connected to audio alert module 15 simultaneously;
The concrete connection of voltage comparison module 12 is: output terminal 1 pin of voltage comparison module 12IC1 passes through resistance R 6Be connected to the base stage b of triode BG2, the direct ground connection of the emitter e of triode BG2, the collector c of triode BG2 is connected with resistance R 5, be connected with potentiometer W simultaneously 1
The concrete connection of memory circuit module 13 is: diode D 3Output terminal and ground between resistance R in parallel 7With capacitor C 5, resistance R 7With capacitor C 5An end in parallel is connected to resistance R 8
The concrete connection of drive circuit module 14 is: resistance R 8Be connected to the base stage b of triode BG3, the collector c of triode BG3 is connected with the collector c of triode BG4, and the emitter e of triode BG3 is connected to the base stage b of triode BG4, the direct ground connection of the emitter e of triode BG4;
The concrete connection of audio alert module 15 is: relay J and diode D 4Be connected to the collector c junction of collector c and the triode BG4 of triode BG3 after the parallel connection, the direct ground connection of 1 pin of IC2 is connected with resistance R between 4 pins of IC2 and 5 pins 10, 3 pins of IC2 and relay J and diode D 4End after the parallel connection is connected to an end of K switch together, and 6 pins of IC2 are connected to an end of K switch by switch J1-1, and the output terminal of IC2 passes through resistance R simultaneously 9Be connected to the base stage b of triode BG5, the direct ground connection of the emitter e of triode BG5 is connected with hummer between the collector c of triode BG5 and the K switch, is in series with the 6V power supply between the other end of K switch and the ground.
Mechanical door lock is as metal sensing chip P, has distributed capacitance C between over the ground, constitutes resonant tank with inductance L etc., and forms the oscillator module 11 of capacitance three-point type with BG1, and IC1 has constituted voltage comparison module 12, diode D 3With R 7, C 5Form memory circuit module 13, BG3, BG4 form drive circuit module 14, and the normally opened contact J1-1 closed type of relay J triggers audio alert module 15 and reports to the police.
When human body during away from mechanical door lock, LC loop Q value is high, BG1 starting of oscillation, its emitter resistance R 4On voltage higher, the Vi+＞Vi-of voltage comparison module 12, it is output as high level, BG2 is saturated, the A point is low level, and BG3, BG4 end, not adhesive of relay J, its normally opened contact disconnects, and the IC2 in the audio alert module 15 is not triggered, and audio alert module 15 is sounding not.
When human body when the mechanical door lock, the capacity of capacitor C increases, and makes the Q value decline in loop, forces the BG1 failure of oscillation, R 4On DC voltage reduce the Vi of voltage comparison module 12IC1 +＜Vi -, its output voltage is low level, and BG2 ends, and the A point is high level, passes through W 2, D 3Give C 5Charging.
Generally the time of turning the key in the lock is 3-5 second, and when owner opened the door, human body contacted with mechanical door lock by key, and making the A point is high level, gives capacitor C 5Charging, but at U C5Voltage Hai Wei when being charged to 1.4V, this process finishes, the promising low level of A point, C 5Pass through R 7Slowly discharge, not adhesive of relay J, audio alert module 15 is sounding not.
If the robber is when illegally opening the door by multi-functional key or other means, in case near 10 seconds of door lock, then U C5＞1.4V, the relay J adhesive triggers IC2 and makes loudspeaker send sharp-pointed alarm song, because the pick-up voltage of relay is greater than its slowly-releasing voltage, in case adhesive namely is exactly that the A voltage of ordering has the low level of becoming, U C5Voltage make continue about 30 seconds the pickup time of relay J, keep about 30 seconds alarm song.
If the robber has been familiar with principle and the function of this burglar alarm, want to continue to come close to or in contact with door lock, for example, 8 seconds of contact door lock stop contacting door lock again after one minute, then when its contact door lock 4-5 during second warning horn just carry out alarm, this is because of C 5Pass through R 7The big resistance of this 3.3V is the cause of discharge slowly, thereby has memory function.
A kind of human body induction type burglar alarm with memory function that the present invention proposes, circuit structure is simple, and is highly sensitive, installs simply, has good anti-theft feature.Because it has memory function, if the robber has been familiar with principle and the function of this burglar alarm, want to continue to come close to or in contact with door lock, this moment, alarm still can be reported to the police.
The human body induction type burglar alarm with memory function that the embodiment of the invention provides, the state variation of oscillator module 11 induction monitoring mechanical door locks, state variation according to the mechanical door lock of induction monitoring generates waveform, the waveform of voltage comparison module 12 reception oscillator modules 11 outputs, the waveform magnitude of voltage is compared with the voltage threshold of setting, according to voltage comparative result output memory signal, the voltage comparative result that 13 pairs of voltage comparison module of memory circuit module 12 obtain is stored memory, and output audio alert control signal, drive circuit module 14 receives memory circuit module 13 output audio alert control signals, the audio alert control signal is amplified processing, and the audio alert control signal after amplify handling exported, the waveform of audio alert module 15 reception oscillator modules 11 outputs and the audio alert control signal of drive circuit module 14 outputs, the lang sound of going forward side by side is reported to the police; Circuit structure of the present invention is simple, and is practical, highly sensitive, installs simply, has good anti-theft feature and memory function.
The above only is preferred embodiment of the present invention, not in order to limiting the present invention, all any modifications of doing within the spirit and principles in the present invention, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.

Claims (3)

1. the human body induction type burglar alarm with memory function is characterized in that, this human body induction type burglar alarm comprises:
Oscillator module is used for the state variation of induction monitoring mechanical door lock, generates waveform according to the state variation of the mechanical door lock of induction monitoring, and the waveform that generates is exported;
Voltage comparison module is connected with described oscillator module, is used for receiving the waveform of described oscillator module output, the waveform magnitude of voltage is compared with the voltage threshold of setting, according to voltage comparative result output memory signal;
The memory circuit module is connected with described voltage comparison module, is used for receiving the memory signal of described voltage comparison module output, and the voltage comparative result that described voltage comparison module obtains is stored memory, and output audio alert control signal;
Drive circuit module is connected with described drive circuit module, is used for receiving described memory circuit module output audio alert control signal, the audio alert control signal is amplified processing, and the audio alert control signal of amplifying after handling is exported;
The audio alert module is connected with described oscillator module and drive circuit module, is used for receiving the waveform of described oscillator module output and the audio alert control signal of drive circuit module output, is used for carrying out audio alert.
2. human body induction type burglar alarm as claimed in claim 1 is characterized in that, the physical circuit of described oscillator module is connected to: metal sensing chip P is connected with capacitor C, an other end part and the inductance L of metal sensing chip P between over the ground 1Connect inductance L 1The other end and ground between be parallel with capacitor C 1, an other end part and the capacitor C of while metal sensing chip P 2Connect capacitor C 2The other end be connected diode D 1With diode D 2End after the parallel connection, diode D 1With diode D 2Other end part after the parallel connection is connected the base stage b of triode BG1, is in series with resistance R between a part and the ground 3, another part directly is connected inverting input 2 pins of voltage comparison module IC1, capacitor C in parallel between the emitter e of triode BG1 and the ground 4With resistance R 4Inductance L 1The other end and the collector c of triode BG1 between be connected with capacitor C 3, diode D 1With diode D 2End after the parallel connection is in series with resistance R 1, potentiometer W 1With resistance R 2After be connected to triode BG 1Collector c, potentiometer W 1With resistance R 2Between the junction be connected to resistance R 5An end, be connected to the audio alert module simultaneously;
The physical circuit of voltage comparison module is connected to: output terminal 1 pin of voltage comparison module IC1 passes through resistance R 6Be connected to the base stage b of triode BG2, the direct ground connection of the emitter e of triode BG2, the collector c of triode BG2 is connected with resistance R 5, be connected with potentiometer W simultaneously 1
The physical circuit of memory circuit module is connected to: diode D 3Output terminal and ground between resistance R in parallel 7With capacitor C 5, resistance R 7With capacitor C 5An end in parallel is connected to resistance R 8
The physical circuit of drive circuit module is connected to: resistance R 8Be connected to the base stage b of triode BG3, the collector c of triode BG3 is connected with the collector c of triode BG4, and the emitter e of triode BG3 is connected to the base stage b of triode BG4, the direct ground connection of the emitter e of triode BG4;
The physical circuit of audio alert module is connected to: relay J and diode D 4Be connected to the collector c junction of collector c and the triode BG4 of triode BG3 after the parallel connection, the direct ground connection of 1 pin of IC2 is connected with resistance R between 4 pins of IC2 and 5 pins 10, 3 pins of IC2 and relay J and diode D 4End after the parallel connection is connected to an end of K switch together, and 6 pins of IC2 are connected to an end of K switch by switch J1-1, and the output terminal of IC2 passes through resistance R simultaneously 9Be connected to the base stage b of triode BG5, the direct ground connection of the emitter e of triode BG5 is connected with hummer between the collector c of triode BG5 and the K switch, is in series with the 6V power supply between the other end of K switch and the ground.
3. human body induction type burglar alarm as claimed in claim 2 is characterized in that, mechanical door lock is as metal sensing chip P.
CN2013101718293A 2013-05-06 2013-05-06 Human body induction type burglar alarm with memory function Pending CN103247124A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104932653A (en) * 2015-06-18 2015-09-23 常州工学院 Computer startup management control system

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Application publication date: 20130814