CN105448007A - Buzzer vibration alarm module - Google Patents
Buzzer vibration alarm module Download PDFInfo
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- CN105448007A CN105448007A CN201510766866.8A CN201510766866A CN105448007A CN 105448007 A CN105448007 A CN 105448007A CN 201510766866 A CN201510766866 A CN 201510766866A CN 105448007 A CN105448007 A CN 105448007A
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B3/00—Audible signalling systems; Audible personal calling systems
- G08B3/10—Audible signalling systems; Audible personal calling systems using electric transmission; using electromagnetic transmission
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Abstract
The invention relates to a buzzer vibration alarm module and solves the defect in the prior art. According to the technical scheme of the invention, the buzzer vibration alarm module comprises a time-delay circuit, a signal accumulation circuit, a comparison circuit, an alarm time-delay circuit, a buzzer alarm control circuit, a buzzer action switching circuit, an amplifier circuit and an alarm output circuit. The output end of the amplifier circuit is connected with the input end of the signal accumulation circuit. The output end of the signal accumulation circuit is connected with the input end of the comparison circuit. The output end of the comparison circuit is connected with the alarm time-delay circuit. The output end of the comparison circuit is electrically connected with the alarm output circuit. The output end of the alarm time-delay circuit is electrically connected with the time-delay circuit. The buzzer firstly serves as a sensor, and then serves as an alarm. The alarm time-delay circuit also outputs a signal to be in conduction with the time-delay circuit so as to reset the release of signals accumulated in the signal accumulation circuit. Therefore, the cost is saved.
Description
Technical field
The present invention relates to a kind of hummer vibration alarming module, the hummer vibration alarming module that particularly a kind of hummer is multiplexing.
Background technology
Vibration alarming module is conventional a kind of detection alarm module, application widely, particularly general insurance, fragile article is preserved also has financial product that vibration alarming all can be needed to protect, in general, the composition of these vibration alarming modules is all that vibration transducer adds alarm, comparatively ripe product and technique is had under this pattern of vibration alarming module, the room for improvement of technique and product is little, cost solidifies, competition between each manufacturer is comparatively fierce, therefore once there be new product breakthrough vibration transducer to add the traditional mode of alarm, the cost providing the words of the multiplexing hummer vibration alarming module of a kind of perfect hummer newly directly can reduce vibration alarming module obtains the very large market response.
Chinese Patent Application No.: CN201310609076.X, publication date: on March 26th, 2014, disclose a kind of wireless vibration alarm, comprise transmitter, receiver, vibration alarm, transmitter is RCMlA transmitter module, receiver comprises RCM1B receiver module, decade counter frequency divider digital integrated circuit and thyristor switch vt circuit, 2 pins of RCMlB receiver module are connected with 15 pin of CD4017 decade counter by diode VD1, 2 of CD4017 decade counter, 7, 1, 6, 11 pins are all by diode connecting resistance R12, resistance R12 connects the base stage of triode VT, triode VT is as the switch between rear end vibration alarm and power supply, vibration alarm, described warning circuit comprises field effect transistor VF, resistance R1R6, electric capacity C1C4, vibration transducer B, power supply, IC1 chip and IC2 chip, vibration transducer B one end ground connection, the grid of another termination field effect transistor VF, the source electrode of field effect transistor VF is by resistance R3 and electric capacity C2 ground connection, the drain electrode of field effect transistor VF connects positive source by resistance R2, the drain electrode of field effect transistor VF connects 2 pins of IC chip by electric capacity C1, 4 pins of IC1 chip connect positive source, 6 pins and 7 pins of IC1 chip connect positive source by resistance R4, by C3 ground connection, 1 pin ground connection of IC1 chip, 3 pins of IC1 chip connect 4 pins of IC2 chip, 7 pins of IC2 chip connect positive source by resistance R5, 6 pins of IC2 chip and 2 pins are by electric capacity C4 ground connection, 1 pin ground connection of IC2 chip, 8 pins of IC2 chip connect positive source, 3 pins of IC2 chip connect loudspeaker one end by electric capacity C5, loudspeaker other end ground connection.Clearly vibration alarm disclosed in correlation technique is substantially also followed the pattern that vibration transducer adds alarm, and the room for improvement of technique and product is little, and cost solidifies.
Summary of the invention
The object of the invention is to solve above-mentioned prior art and followed the pattern that vibration transducer adds alarm, the room for improvement of technique and product is little, and the problem of cost solidification, provides the hummer vibration alarming module that a kind of hummer is multiplexing.
The technical solution adopted for the present invention to solve the technical problems is: a kind of hummer vibration alarming module, by Power supply, comprise delay circuit, signal accumulation circuit, comparator circuit, warning and delaying circuit, buzzer warning control circuit, hummer effect commutation circuit, amplifying circuit and alarm output circuit, amplification circuit output end is connected with the input end of signal accumulation circuit, the output terminal of signal accumulation circuit is connected with the input end of comparator circuit, the output terminal of comparator circuit is connected with warning and delaying circuit, the output terminal of comparator circuit is also electrically connected with alarm output circuit, the output terminal of warning and delaying circuit is also electrically connected with delay circuit, hummer effect commutation circuit comprises a hummer and change-over switch, when change-over switch is communicated with buzzer warning control circuit, hummer is alarm, when change-over switch connects amplifying circuit, hummer is vibration transducer.The present invention utilizes the principle of work of the passive hummer of piezoelectric type, and it is used as vibration transducer, reduce cost, first, hummer uses as sensor, entered amplification, Cumulate Sum relatively after, warning and delaying circuit is transferred to after accumulated value is greater than setting value, warning and delaying circuit outputs control signals to buzzer warning control circuit and hummer effect commutation circuit, hummer effect commutation circuit switches, hummer becomes alarm, now, buzzer warning control circuit output alarm signal is to hummer, warning and delaying circuit also output alarm signal is called to alarm output circuit by follow-up equipment, warning and delaying circuit also outputs signal conducting delay circuit, the signal accumulated in signal accumulation circuit is discharged, hummer effect commutation circuit after time delay simultaneously re-starts switching, hummer uses as sensor, play multiplexing effect, save cost, and the present invention is pure hardware circuit, so the vibration alarming circuit than general in reliability is more reliable.
As preferably, described hummer effect commutation circuit also comprises resistance R16, resistance R19, resistance R13, resistance R12, resistance R21, electric capacity C5, electric capacity C12 and diode D3, described change-over switch comprises relay, by the first moving contact of Control, by the second moving contact of Control, first stationary contact, second stationary contact, 3rd stationary contact and the 4th stationary contact, described first moving contact is connected with the first stationary contact or the second stationary contact, second moving contact is connected with the 3rd stationary contact or the 4th stationary contact, the first end of described relay is electrically connected with warning and delaying circuit, second end ground connection of relay, first moving contact is connected with the first end of hummer, second moving contact is connected with the second end of hummer, first stationary contact is connected with power supply, second stationary contact is electrically connected with buzzer warning control circuit, 3rd stationary contact is connected with the input end of amplifying circuit, 4th stationary contact ground connection, one end of described relay is connected with the negative electrode of diode D3, the other end of relay is also connected with the anode of diode D3, first moving contact is by electric capacity C12 ground connection, first moving contact is also connected with the first end of resistance R13, second end of resistance R13 is connected with power supply by resistance R16, second end of resistance R13 is connected with the first end of resistance R19, second end of resistance R19 is by resistance R12 ground connection, second end of resistance R19 is also by electric capacity C5 ground connection.Such setting, relay not electric time hummer use as vibration transducer, when relay obtains electric time, hummer uses as alarm, plays multiplexing effect, has saved cost.More specifically: circuit is under being operated in vibration detecting pattern at the beginning, once outside has vibration to produce, after vibration signal is passed through amplifying circuit by sensor, through signal accumulation circuit, enter comparator circuit, when comparator circuit receives a voltage higher than threshold values, warning and delaying circuit produces the time delay of 1 second ~ 10 seconds adjustable (being adjusted by adjustable resistance) to buzzer warning, LED is bright, after 1 second ~ 10 seconds, circuit automatically switches to sensor input pattern, the oscillator signal that now input signal handoff delay circuit produces after being closed by hummer filters out in the mode of time delay, circuit starts vibration detecting, until a next time detects vibration signal.
As preferably, described warning and delaying circuit comprises warning and delaying circuit 555 chip, power transformation resistance R40, electric capacity C35 and electric capacity C36, the change end of power transformation resistance R40 is held with the DISCHG of warning and delaying circuit 555 chip and is connected, the stiff end of power transformation resistance R40 is held with the RESET of warning and delaying circuit 555 chip and is connected, the THOLD end of warning and delaying circuit 555 chip is by electric capacity C35 ground connection, the CVOLT end of warning and delaying circuit 555 chip is by electric capacity C36 ground connection, the OUT end of warning and delaying circuit 555 chip respectively with the negative electrode of diode D3 in hummer effect commutation circuit, being electrically connected with delay circuit of buzzer warning control circuit, the TRIG end of warning and delaying circuit 555 chip is connected with the output terminal of comparator circuit.
As preferably, buzzer warning control circuit comprises buzzer warning control circuit 555 chip, resistance R36, power transformation resistance R35, electric capacity C30 and electric capacity C31, the RESET end of described buzzer warning control circuit 555 chip is held with the OUT of warning and delaying circuit 555 chip and is connected, the DISCHG end of buzzer warning control circuit 555 chip is connected with power supply by resistance R36, the THOLD end of buzzer warning control circuit 555 chip to be held with the DISCHG of buzzer warning control circuit 555 chip by power transformation resistance R35 and is connected, the TRIG end of buzzer warning control circuit 555 chip is by electric capacity C30 ground connection, the CVOLT end of buzzer warning control circuit 555 chip is by electric capacity C31 ground connection, the OUT end of buzzer warning control circuit 555 chip is connected with the second stationary contact.
As preferably, described amplifying circuit comprises the first amplifier, electric capacity C11, resistance R14, resistance R22, resistance R10, electric capacity C6 and electric capacity C3, the positive input terminal of described first amplifier is connected with the 3rd stationary contact, the positive input terminal of the first amplifier is by electric capacity C11 ground connection, the negative input end of the first amplifier also with by resistance R14 and electric capacity C3 ground connection, one end of resistance R22 is connected with the negative input end of the first amplifier, the other end of resistance R22 is successively by a gating switch and electric capacity C3 ground connection, the negative input end of the first amplifier is connected with the output terminal of the first amplifier by resistance R10, the output terminal of the first amplifier is connected with the input end of signal accumulation circuit, the first end of electric capacity C6 is connected with the negative input end of the first amplifier, second end of electric capacity C6 is connected with the input end of signal accumulation circuit.The other end of resistance R22 is successively by a gating switch and electric capacity C3 ground connection, and doing like this is carry out enlargement factor selection, and gating switch closes, and enlargement factor increases.
As preferably, described signal accumulation circuit comprises electric capacity C4, diode D2, resistance R7, power transformation resistance R0, resistance R5, electric capacity C2, resistance R3 and electric capacity C10, delay circuit comprises resistance R42, resistance R41, electric capacity C33 and triode Q4, the output terminal of the first amplifier with by electric capacity C4 ground connection, the output terminal of the first amplifier is connected with the anode of diode D2, the negative electrode of diode D2 is connected with the first end that power transformation hinders R0 by resistance R7, second end of power transformation resistance R0 is connected with the collector of triode Q4, second end of power transformation resistance R0 is by resistance R5 ground connection, second end of power transformation resistance R0 is also connected with the first end of resistance R3, the first end of resistance R3 is by electric capacity C2 ground connection, second end of resistance R3 is by electric capacity C10 ground connection, second end of resistance R3 is connected with the input end of comparator circuit, the grounded emitter of triode Q4, the base stage of triode Q4 is connected with second end of resistance R41, the first end of resistance R41 is by electric capacity C33 ground connection, the first end of resistance R41 is held with the OUT of warning and delaying circuit 555 chip by resistance R42 and is connected.Signal accumulation circuit, is used for accumulation small-signal, and when vibration signal is very little, but when frequency is enough high, small-signal can be accumulated to together by summation circuit, then compares.Input handoff delay circuit, is used for filtering out commutation circuit when switching from buzzer warning to sensor input state, hummer close after the unnecessary vibration of generation, prevent circuit one switching, just enter warning next time, and produce endless loop.
As preferably, described comparator circuit comprises the second amplifier, resistance R17, resistance R18, resistance R20, electric capacity C7, electric capacity C8 and resistance R23, the negative input end of described second amplifier is connected with second end of resistance R3, the positive input terminal of the second amplifier is by electric capacity C8 ground connection, the positive input terminal of the second amplifier is connected with power supply by resistance R17, the positive input terminal of the second amplifier is by resistance R18 and resistance R20 ground connection, the first end of described electric capacity C7 is connected with the first end of resistance R20, second end of electric capacity C7 is connected with second end of resistance R20, the positive input terminal of described second amplifier is connected with the output terminal of the second amplifier by resistance R23, the output terminal of the second amplifier is held with the TRIG of warning and delaying circuit 555 chip and is connected.
As preferably, described alarm output circuit comprises optocoupler, resistance R2, resistance R27, resistance R8 and triode Q1, the control part positive input terminal of optocoupler is connected with power supply by resistance R27, the negative input end of the control part of optocoupler is connected with the collector of triode Q1, the base stage of triode Q1 is connected with the output terminal of the second amplifier by resistance R8, the grounded emitter of triode Q1, the positive output end in the controlled portion of optocoupler exports positive alerting signal by resistance R2, and the negative output terminal in the controlled portion of optocoupler exports negative alerting signal.
As preferably, also include LED warning circuit, the OUT end of warning and delaying circuit 555 chip is connected with the control end of LED warning circuit, and the input end of LED warning circuit is connected with power supply, the earth terminal ground connection of LED warning circuit.
As preferably, described LED warning circuit comprises resistance R9, resistance R26, resistance R4, light emitting diode and triode Q2, the base stage of triode Q2 is held with the OUT of warning and delaying circuit 555 chip by resistance R9 and is connected, the emitter of triode Q2 is by light emitting diode and resistance R26 ground connection, and the collector of triode Q2 is connected with power supply with a gating switch by resistance R4.LED circuit has individual gating switch, is to carry out the selection that LED is bright, go out, and gating switch closes, and LED is lighted after receiving alerting signal, if gating switch disconnects, LED is then bright never.
Substantial effect of the present invention is: the method that present invention employs hummer multiplexing reduces cost, first, hummer uses as sensor, entered amplification, Cumulate Sum relatively after, warning and delaying circuit is transferred to after accumulated value is greater than setting value, warning and delaying circuit outputs control signals to buzzer warning control circuit and hummer effect commutation circuit, hummer effect commutation circuit switches, hummer becomes alarm, now, buzzer warning control circuit output alarm signal is to hummer, warning and delaying circuit also output alarm signal is called to alarm output circuit by follow-up equipment, warning and delaying circuit also outputs signal conducting delay circuit, the signal accumulated in signal accumulation circuit is discharged, hummer effect commutation circuit after time delay simultaneously re-starts switching, hummer uses as sensor, play multiplexing effect, save cost.And the present invention is pure hardware circuit, so the vibration alarming circuit than general in reliability is more reliable.
Accompanying drawing explanation
Fig. 1 is a kind of frame diagram of the present invention;
Fig. 2 is a kind of circuit theory diagrams of alarm output circuit in the present invention;
Fig. 3 is a kind of circuit theory diagrams of LED warning circuit in the present invention;
Fig. 4 is a kind of circuit theory diagrams of warning and delaying circuit in the present invention;
Fig. 5 is a kind of circuit theory diagrams of buzzer warning control circuit in the present invention;
Fig. 6 is a kind of circuit theory diagrams of hummer effect commutation circuit in the present invention;
Fig. 7 is a kind of circuit theory diagrams of amplifying circuit in the present invention;
Fig. 8 is a kind of circuit theory diagrams of signal accumulation circuit in the present invention;
Fig. 9 is a kind of circuit theory diagrams of delay circuit in the present invention;
Figure 10 is a kind of circuit theory diagrams of comparator circuit in the present invention.
In figure: 1, hummer effect commutation circuit, 2, amplifying circuit, 3, signal accumulation circuit, 4, comparator circuit, 5, warning and delaying circuit, 6, buzzer warning control circuit, 7, delay circuit, 8, LED warning circuit, 9, alarm output circuit.
Embodiment
Below by specific embodiment, and by reference to the accompanying drawings, technical scheme of the present invention is described in further detail.
Embodiment 1:
A kind of hummer vibration alarming module (see accompanying drawing 1 to 10), by Power supply, comprise delay circuit 7, signal accumulation circuit 3, comparator circuit 4, warning and delaying circuit 5, buzzer warning control circuit 6, hummer effect commutation circuit 1, amplifying circuit 2 and alarm output circuit 9, described hummer effect commutation circuit comprises hummer, relay, by the first moving contact of Control, by the second moving contact of Control, first stationary contact, second stationary contact, 3rd stationary contact and the 4th stationary contact, first moving contact is connected with the first stationary contact or the second stationary contact, second moving contact is connected with the 3rd stationary contact or the 4th stationary contact, the first end of described relay is electrically connected with warning and delaying circuit, second end ground connection of relay, first moving contact is connected with the first end of hummer, second moving contact is connected with the second end of hummer, first stationary contact is connected with power supply, second stationary contact is electrically connected with buzzer warning control circuit, 3rd stationary contact is connected with the input end of amplifying circuit, 4th stationary contact ground connection, amplification circuit output end is connected with the input end of signal accumulation circuit, the output terminal of signal accumulation circuit is connected with the input end of comparator circuit, the output terminal of comparator circuit is connected with warning and delaying circuit, the output terminal of comparator circuit is also electrically connected with alarm output circuit, the output terminal of warning and delaying circuit is also electrically connected with delay circuit.Described hummer effect commutation circuit also comprises resistance R16, resistance R19, resistance R13, resistance R12, resistance R21, electric capacity C5, electric capacity C12 and diode D3, one end of described relay is connected with the negative electrode of diode D3, the other end of relay is also connected with the anode of diode D3, first moving contact is by electric capacity C12 ground connection, first moving contact is also connected with the first end of resistance R13, second end of resistance R13 is connected with power supply by resistance R16, second end of resistance R13 is connected with the first end of resistance R19, second end of resistance R19 is by resistance R12 ground connection, second end of resistance R19 is also by electric capacity C5 ground connection.Described warning and delaying circuit comprises warning and delaying circuit 555 chip, power transformation resistance R40, electric capacity C35 and electric capacity C36, the change end of power transformation resistance R40 is held with the DISCHG of warning and delaying circuit 555 chip and is connected, the stiff end of power transformation resistance R40 is held with the RESET of warning and delaying circuit 555 chip and is connected, the THOLD end of warning and delaying circuit 555 chip is by electric capacity C35 ground connection, the CVOLT end of warning and delaying circuit 555 chip is by electric capacity C36 ground connection, the OUT end of warning and delaying circuit 555 chip respectively with the negative electrode of diode D3 in hummer effect commutation circuit, being electrically connected with delay circuit of buzzer warning control circuit, the TRIG end of warning and delaying circuit 555 chip is connected with the output terminal of comparator circuit.Buzzer warning control circuit comprises buzzer warning control circuit 555 chip, resistance R36, power transformation resistance R35, electric capacity C30 and electric capacity C31, the RESET end of described buzzer warning control circuit 555 chip is held with the OUT of warning and delaying circuit 555 chip and is connected, the DISCHG end of buzzer warning control circuit 555 chip is connected with power supply by resistance R36, the THOLD end of buzzer warning control circuit 555 chip to be held with the DISCHG of buzzer warning control circuit 555 chip by power transformation resistance R35 and is connected, the TRIG end of buzzer warning control circuit 555 chip is by electric capacity C30 ground connection, the CVOLT end of buzzer warning control circuit 555 chip is by electric capacity C31 ground connection, the OUT end of buzzer warning control circuit 555 chip is connected with the second stationary contact.Described amplifying circuit comprises the first amplifier, electric capacity C11, resistance R14, resistance R22, resistance R10, electric capacity C6 and electric capacity C3, the positive input terminal of described first amplifier is connected with the 3rd stationary contact, the positive input terminal of the first amplifier is by electric capacity C11 ground connection, the negative input end of the first amplifier also with by resistance R14 and electric capacity C3 ground connection, one end of resistance R22 is connected with the negative input end of the first amplifier, the other end of resistance R22 is successively by a gating switch and electric capacity C3 ground connection, the negative input end of the first amplifier is connected with the output terminal of the first amplifier by resistance R10, the output terminal of the first amplifier is connected with the input end of signal accumulation circuit, the first end of electric capacity C6 is connected with the negative input end of the first amplifier, second end of electric capacity C6 is connected with the input end of signal accumulation circuit.Described signal accumulation circuit comprises electric capacity C4, diode D2, resistance R7, power transformation resistance R0, resistance R5, electric capacity C2, resistance R3 and electric capacity C10, delay circuit comprises resistance R42, resistance R41, electric capacity C33 and triode Q4, the output terminal of the first amplifier with by electric capacity C4 ground connection, the output terminal of the first amplifier is connected with the anode of diode D2, the negative electrode of diode D2 is connected with the first end that power transformation hinders R0 by resistance R7, second end of power transformation resistance R0 is connected with the collector of triode Q4, second end of power transformation resistance R0 is by resistance R5 ground connection, second end of power transformation resistance R0 is also connected with the first end of resistance R3, the first end of resistance R3 is by electric capacity C2 ground connection, second end of resistance R3 is by electric capacity C10 ground connection, second end of resistance R3 is connected with the input end of comparator circuit, the grounded emitter of triode Q4, the base stage of triode Q4 is connected with second end of resistance R41, the first end of resistance R41 is by electric capacity C33 ground connection, the first end of resistance R41 is held with the OUT of warning and delaying circuit 555 chip by resistance R42 and is connected.Described comparator circuit comprises the second amplifier, resistance R17, resistance R18, resistance R20, electric capacity C7, electric capacity C8 and resistance R23, the negative input end of described second amplifier is connected with second end of resistance R3, the positive input terminal of the second amplifier is by electric capacity C8 ground connection, the positive input terminal of the second amplifier is connected with power supply by resistance R17, the positive input terminal of the second amplifier is by resistance R18 and resistance R20 ground connection, the first end of described electric capacity C7 is connected with the first end of resistance R20, second end of electric capacity C7 is connected with second end of resistance R20, the positive input terminal of described second amplifier is connected with the output terminal of the second amplifier by resistance R23, the output terminal of the second amplifier is held with the TRIG of warning and delaying circuit 555 chip and is connected.Described alarm output circuit comprises optocoupler, resistance R2, resistance R27, resistance R8 and triode Q1, the control part positive input terminal of optocoupler is connected with power supply by resistance R27, the negative input end of the control part of optocoupler is connected with the collector of triode Q1, the base stage of triode Q1 is connected with the output terminal of the second amplifier by resistance R8, the grounded emitter of triode Q1, the positive output end in the controlled portion of optocoupler exports positive alerting signal by resistance R2, and the negative output terminal in the controlled portion of optocoupler exports negative alerting signal.Also include LED warning circuit 8, the OUT end of warning and delaying circuit 555 chip is connected with the control end of LED warning circuit, and the input end of LED warning circuit is connected with power supply, the earth terminal ground connection of LED warning circuit.Described LED warning circuit comprises resistance R9, resistance R26, resistance R4, light emitting diode and triode Q2, the base stage of triode Q2 is held with the OUT of warning and delaying circuit 555 chip by resistance R9 and is connected, the emitter of triode Q2 is by light emitting diode and resistance R26 ground connection, and the collector of triode Q2 is connected with power supply with a gating switch by resistance R4.
The present embodiment utilizes the principle of work of the passive hummer of piezoelectric type, and it is used as vibration transducer, reduce cost, first, hummer uses as sensor, entered amplification, Cumulate Sum relatively after, warning and delaying circuit is transferred to after accumulated value is greater than setting value, warning and delaying circuit outputs control signals to buzzer warning control circuit and hummer effect commutation circuit, hummer effect commutation circuit switches, hummer becomes alarm, now, buzzer warning control circuit output alarm signal is to hummer, warning and delaying circuit also output alarm signal is called to alarm output circuit by follow-up equipment, warning and delaying circuit also outputs signal conducting delay circuit, the signal accumulated in signal accumulation circuit is discharged, hummer effect commutation circuit after time delay simultaneously re-starts switching, hummer uses as sensor, play multiplexing effect, save cost, and the present embodiment is pure hardware circuit, so the vibration alarming circuit than general in reliability is more reliable.The present embodiment repeat circuit not electric time hummer use as vibration transducer, when relay obtains electric time, hummer uses as alarm, plays multiplexing effect, has saved cost.More specifically: circuit is under being operated in vibration detecting pattern at the beginning, once outside has vibration to produce, after vibration signal is passed through amplifying circuit by sensor, through signal accumulation circuit, enter comparator circuit, when comparator circuit receives a voltage higher than threshold values, warning and delaying circuit produces the time delay of 1 second ~ 10 seconds adjustable (being adjusted by adjustable resistance) to buzzer warning, LED is bright, after 1 second ~ 10 seconds, circuit automatically switches to sensor input pattern, the oscillator signal that now input signal handoff delay circuit produces after being closed by hummer filters out in the mode of time delay, circuit starts vibration detecting, until a next time detects vibration signal.The other end of resistance R22 is successively by a gating switch and electric capacity C3 ground connection, and doing like this is carry out enlargement factor selection, and gating switch closes, and enlargement factor increases.Signal accumulation circuit, is used for accumulation small-signal, and when vibration signal is very little, but when frequency is enough high, small-signal can be accumulated to together by summation circuit, then compares.Input handoff delay circuit, is used for filtering out commutation circuit when switching from buzzer warning to sensor input state, hummer close after the unnecessary vibration of generation, prevent circuit one switching, just enter warning next time, and produce endless loop.LED circuit has individual gating switch, is to carry out the selection that LED is bright, go out, and gating switch closes, and LED is lighted after receiving alerting signal, if gating switch disconnects, LED is then bright never.
Above-described embodiment is one of the present invention preferably scheme, not does any pro forma restriction to the present invention, also has other variant and remodeling under the prerequisite not exceeding the technical scheme described in claim.
Claims (10)
1. a hummer vibration alarming module, by Power supply, it is characterized in that: comprise delay circuit, signal accumulation circuit, comparator circuit, warning and delaying circuit, buzzer warning control circuit, hummer effect commutation circuit, amplifying circuit and alarm output circuit, amplification circuit output end is connected with the input end of signal accumulation circuit, the output terminal of signal accumulation circuit is connected with the input end of comparator circuit, the output terminal of comparator circuit is connected with warning and delaying circuit, the output terminal of comparator circuit is also electrically connected with alarm output circuit, the output terminal of warning and delaying circuit is also electrically connected with delay circuit, hummer effect commutation circuit comprises a hummer and change-over switch, when change-over switch is communicated with buzzer warning control circuit, hummer is alarm, when change-over switch connects amplifying circuit, hummer is vibration transducer.
2. hummer vibration alarming module according to claim 1, it is characterized in that: described hummer effect commutation circuit also comprises resistance R16, resistance R19, resistance R13, resistance R12, resistance R21, electric capacity C5, electric capacity C12 and diode D3, described change-over switch comprises relay, by the first moving contact of Control, by the second moving contact of Control, first stationary contact, second stationary contact, 3rd stationary contact and the 4th stationary contact, described first moving contact is connected with the first stationary contact or the second stationary contact, second moving contact is connected with the 3rd stationary contact or the 4th stationary contact, the first end of described relay is electrically connected with warning and delaying circuit, second end ground connection of relay, first moving contact is connected with the first end of hummer, second moving contact is connected with the second end of hummer, first stationary contact is connected with power supply, second stationary contact is electrically connected with buzzer warning control circuit, 3rd stationary contact is connected with the input end of amplifying circuit, 4th stationary contact ground connection, one end of described relay is connected with the negative electrode of diode D3, the other end of relay is also connected with the anode of diode D3, first moving contact is by electric capacity C12 ground connection, first moving contact is also connected with the first end of resistance R13, second end of resistance R13 is connected with power supply by resistance R16, second end of resistance R13 is connected with the first end of resistance R19, second end of resistance R19 is by resistance R12 ground connection, second end of resistance R19 is also by electric capacity C5 ground connection.
3. hummer vibration alarming module according to claim 2, it is characterized in that: described warning and delaying circuit comprises warning and delaying circuit 555 chip, power transformation resistance R40, electric capacity C35 and electric capacity C36, the change end of power transformation resistance R40 is held with the DISCHG of warning and delaying circuit 555 chip and is connected, the stiff end of power transformation resistance R40 is held with the RESET of warning and delaying circuit 555 chip and is connected, the THOLD end of warning and delaying circuit 555 chip is by electric capacity C35 ground connection, the CVOLT end of warning and delaying circuit 555 chip is by electric capacity C36 ground connection, the OUT end of warning and delaying circuit 555 chip respectively with the negative electrode of diode D3 in hummer effect commutation circuit, being electrically connected with delay circuit of buzzer warning control circuit, the TRIG end of warning and delaying circuit 555 chip is connected with the output terminal of comparator circuit.
4. hummer vibration alarming module according to claim 3, it is characterized in that: buzzer warning control circuit comprises buzzer warning control circuit 555 chip, resistance R36, power transformation resistance R35, electric capacity C30 and electric capacity C31, the RESET end of described buzzer warning control circuit 555 chip is held with the OUT of warning and delaying circuit 555 chip and is connected, the DISCHG end of buzzer warning control circuit 555 chip is connected with power supply by resistance R36, the THOLD end of buzzer warning control circuit 555 chip to be held with the DISCHG of buzzer warning control circuit 555 chip by power transformation resistance R35 and is connected, the TRIG end of buzzer warning control circuit 555 chip is by electric capacity C30 ground connection, the CVOLT end of buzzer warning control circuit 555 chip is by electric capacity C31 ground connection, the OUT end of buzzer warning control circuit 555 chip is connected with the second stationary contact.
5. hummer vibration alarming module according to claim 4, it is characterized in that: described amplifying circuit comprises the first amplifier, electric capacity C11, resistance R14, resistance R22, resistance R10, electric capacity C6 and electric capacity C3, the positive input terminal of described first amplifier is connected with the 3rd stationary contact, the positive input terminal of the first amplifier is by electric capacity C11 ground connection, the negative input end of the first amplifier also with by resistance R14 and electric capacity C3 ground connection, one end of resistance R22 is connected with the negative input end of the first amplifier, the other end of resistance R22 is successively by a gating switch and electric capacity C3 ground connection, the negative input end of the first amplifier is connected with the output terminal of the first amplifier by resistance R10, the output terminal of the first amplifier is connected with the input end of signal accumulation circuit, the first end of electric capacity C6 is connected with the negative input end of the first amplifier, second end of electric capacity C6 is connected with the input end of signal accumulation circuit.
6. hummer vibration alarming module according to claim 5, it is characterized in that: described signal accumulation circuit comprises electric capacity C4, diode D2, resistance R7, power transformation resistance R0, resistance R5, electric capacity C2, resistance R3 and electric capacity C10, delay circuit comprises resistance R42, resistance R41, electric capacity C33 and triode Q4, the output terminal of the first amplifier with by electric capacity C4 ground connection, the output terminal of the first amplifier is connected with the anode of diode D2, the negative electrode of diode D2 is connected with the first end that power transformation hinders R0 by resistance R7, second end of power transformation resistance R0 is connected with the collector of triode Q4, second end of power transformation resistance R0 is by resistance R5 ground connection, second end of power transformation resistance R0 is also connected with the first end of resistance R3, the first end of resistance R3 is by electric capacity C2 ground connection, second end of resistance R3 is by electric capacity C10 ground connection, second end of resistance R3 is connected with the input end of comparator circuit, the grounded emitter of triode Q4, the base stage of triode Q4 is connected with second end of resistance R41, the first end of resistance R41 is by electric capacity C33 ground connection, the first end of resistance R41 is held with the OUT of warning and delaying circuit 555 chip by resistance R42 and is connected.
7. hummer vibration alarming module according to claim 6, it is characterized in that: described comparator circuit comprises the second amplifier, resistance R17, resistance R18, resistance R20, electric capacity C7, electric capacity C8 and resistance R23, the negative input end of described second amplifier is connected with second end of resistance R3, the positive input terminal of the second amplifier is by electric capacity C8 ground connection, the positive input terminal of the second amplifier is connected with power supply by resistance R17, the positive input terminal of the second amplifier is by resistance R18 and resistance R20 ground connection, the first end of described electric capacity C7 is connected with the first end of resistance R20, second end of electric capacity C7 is connected with second end of resistance R20, the positive input terminal of described second amplifier is connected with the output terminal of the second amplifier by resistance R23, the output terminal of the second amplifier is held with the TRIG of warning and delaying circuit 555 chip and is connected.
8. hummer vibration alarming module according to claim 7, it is characterized in that: described alarm output circuit comprises optocoupler, resistance R2, resistance R27, resistance R8 and triode Q1, the control part positive input terminal of optocoupler is connected with power supply by resistance R27, the negative input end of the control part of optocoupler is connected with the collector of triode Q1, the base stage of triode Q1 is connected with the output terminal of the second amplifier by resistance R8, the grounded emitter of triode Q1, the positive output end in the controlled portion of optocoupler exports positive alerting signal by resistance R2, the negative output terminal in the controlled portion of optocoupler exports negative alerting signal.
9. the hummer vibration alarming module according to claim 3 or 7 or 8, it is characterized in that: also include LED warning circuit, the OUT end of warning and delaying circuit 555 chip is connected with the control end of LED warning circuit, the input end of LED warning circuit is connected with power supply, the earth terminal ground connection of LED warning circuit.
10. hummer vibration alarming module according to claim 9, it is characterized in that: described LED warning circuit comprises resistance R9, resistance R26, resistance R4, light emitting diode and triode Q2, the base stage of triode Q2 is held with the OUT of warning and delaying circuit 555 chip by resistance R9 and is connected, the emitter of triode Q2 is by light emitting diode and resistance R26 ground connection, and the collector of triode Q2 is connected with power supply with a gating switch by resistance R4.
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| CN201510766866.8A CN105448007B (en) | 2015-11-11 | 2015-11-11 | Buzzer vibration alarming module |
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| CN201510766866.8A CN105448007B (en) | 2015-11-11 | 2015-11-11 | Buzzer vibration alarming module |
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| CN105448007A true CN105448007A (en) | 2016-03-30 |
| CN105448007B CN105448007B (en) | 2017-11-07 |
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| CN105448007B (en) | 2017-11-07 |
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