CN206863932U - Video frequency monitoring system - Google Patents

Abstract

The utility model discloses a kind of video frequency monitoring system, solve often occur security personnel it is interim it is busy go out, and other security personnel also have the situation that thing is gone out, and cause nobody in room security, it is difficult to which the problem of to visiting offering customers service, its drip irrigation device is：Including for detecting whether human body nearby and exports the human body detection device of human testing signal, is coupled to human body detection device and judges the judgment means of signal to receive human testing signal and exporting, is coupled to judgment means to receive to judge signal and in response to judging signal to realize the alarm device of alarm, a kind of video frequency monitoring system of the present utility model, can in effective detection room security whether the situation of someone, when in room security nobody when can notify other staff by way of alarm and short message.

Description

Video frequency monitoring system

Technical field

It the utility model is related to a kind of video frequency monitoring system.

Background technology

Existing company and school are basically provided with room security, and at least one security personnel are typically provided with room security.

But in a practical situation, often generation security personnel are temporarily busy goes out, and other security personnel also have the situation that thing is gone out, Cause nobody in room security, it is difficult to visiting offering customers service, also improved space.

Utility model content

The purpose of this utility model be to provide a kind of video frequency monitoring system can in effective detection room security whether someone Situation, when in room security nobody when can alarm and short message by way of notify other staff.

Above-mentioned technical purpose of the present utility model technical scheme is that：

A kind of video frequency monitoring system, including for detecting whether human body nearby and exports people's physical examination of human testing signal Device is surveyed, human body detection device is coupled to and judges the judgment means of signal to receive human testing signal and export, is coupled to and sentences Disconnected device is to receive to judge signal and in response to judging signal to realize the alarm device of alarm.

, here can be with effective detection human testing signal, then by sentencing by human body detection device using such scheme Whether disconnected device is people, in the case of nobody, effectively informed by alarm device in outside people now in room security nobody.

Preferably, also include being arranged between human body detection device and judgment means to amplify human testing signal Signal amplifying apparatus.

Using such scheme, human testing signal can effectively be amplified by the setting of signal amplifying apparatus here, avoided Human testing signal is too low and can not normally transmit.

Preferably, the judgment means include being coupled to human body detection device to receive human testing signal and export Limit judges the upper limit decision circuitry of signal and is coupled to human body detection device to receive human testing signal and bottoming is sentenced The lower limit decision circuitry of break signal.

Using such scheme, people can effectively be limited by the setting of upper limit decision circuitry and lower limit decision circuitry here Whether the infrared spectrum of body, it is people that can preferably be differentiated by the setting.

Preferably, the alarm device judges signal and in response to judging signal including being coupled to judgment means to receive To realize the light prompt circuit of light prompt and be coupled to judgment means to receive to judge signal and in response to judging signal To realize the auditory tone cues electric circuit of auditory tone cues.

Using such scheme, here by light prompt circuit set can effectively be informed by luminous form in Staff, and the setting of corresponding auditory tone cues electric circuit can effectively notify staff by the form of sound.

Preferably, the light prompt circuit includes being used for the drive division of output drive signal and is coupled to drive division To receive drive signal and in response to drive signal to realize luminous illuminating part.

Using such scheme, the work of illuminating part can be preferably driven by drive division here, passes through both settings Light stroboscopic can be realized, further preferably prompts staff.

Preferably, also include being coupled to control device with the delay cutoff electricity of delay cutoff auditory tone cues electric circuit Road.

Using such scheme, it can be realized by the setting of delay cutoff circuit effectively cut within the time of setting here Disconnected auditory tone cues electric circuit, avoids the long-time of auditory tone cues electric circuit from alarming.

Preferably, the auditory tone cues electric circuit is loudspeaker.

Using such scheme, auditory tone cues electric circuit selection here can effectively amplify sound with loudspeaker and be carried Show, and cost is relatively low.

In summary, the utility model has the advantages that：

1st, it can realize there is nobody detection to interior by human body detection device and judgment means here；

2nd, it can both be realized by the setting of auditory tone cues electric circuit and delay cutoff circuit here and staff was carried Show, moreover it is possible to effectively avoid alarm for a long time from impacting staff.

Brief description of the drawings

Fig. 1 is the system block diagram of scheme；

Fig. 2 is human body detection device, the circuit connection diagram of signal amplifying apparatus；

Fig. 3 is judgment means, alarm device, the circuit connection diagram of delay cutoff circuit.

In figure：1st, human body detection device；2nd, judgment means；3rd, alarm device；4th, signal amplifying apparatus；5th, the upper limit judges electricity Road；6th, lower limit decision circuitry；7th, light prompt circuit；8th, auditory tone cues electric circuit；9th, drive division；10th, illuminating part；11st, delay is cut Deenergizing.

Embodiment

The utility model is described in further detail below in conjunction with accompanying drawing 1-3.

A kind of video frequency monitoring system disclosed in the present embodiment, including for detecting whether human body nearby and exports people's physical examination The human body detection device 1 of signal is surveyed, human body detection device 1 is coupled to and judges sentencing for signal to receive human testing signal and export Disconnected device 2, judgment means 2 are coupled to receive to judge signal and in response to judging signal to realize the alarm device 3 of alarm.

Human body detection device 1 is pyroelectric sensor A2 and the pyroelectric sensor A2 model IRA-E006SX, also Including being arranged between human body detection device 1 and judgment means 2 to amplify the signal amplifying apparatus 4 of human testing signal, believe Number amplifying device 4 is special amplifier A1 and model H8D1779A1.

Judgment means 2 judge signal including being coupled to human body detection device 1 to receive human testing signal and export the upper limit Upper limit decision circuitry 5 and be coupled to human body detection device 1 to receive human testing signal and bottoming judges signal Lower limit decision circuitry 6.

Upper limit decision circuitry 5 include one end be connected to power supply and the other end be connected to slide rheostat RP4 one end, Resistance R10, one end ground connection and the other end of voltage comparator A5 inverting inputs are connected to voltage comparator A5 reverse input ends Slide rheostat RP4, in-phase input end is connected to voltage comparator A4 output ends and output end is connected to voltage comparator A6 Voltage comparator A5；Lower limit decision circuitry 6 is connected to power supply including one end and the other end is connected to slide rheostat RP3 One end, voltage comparator A6 in-phase input ends resistance R11, one end ground connection and the other end be connected to the same phases of voltage comparator A6 Slide rheostat RP3, the inverting input of input are connected to voltage comparator A4 output ends and output end is connected to voltage ratio Voltage comparator A6 compared with device A5, voltage comparator A5 and A6 model are LM393.

Alarm device 3 includes being coupled to judgment means 2 judges signal and in response to judging signal to realize light to receive The light prompt circuit 7 of prompting and judgment means 2 are coupled to receive to judge signal and in response to judging signal to realize sound The auditory tone cues electric circuit 8 of sound prompting.

Light prompt circuit 7 includes being used for the drive division 9 of output drive signal and is coupled to drive division 9 to receive driving Signal and in response to drive signal to realize luminous illuminating part 10.

The anode that illuminating part 10 is connected to light emitting diode D2 including anode connects with resistance R13 one end and negative electrode Light emitting diode D1, anode in resistance R14 one end are connected to light emitting diode D1 anode and resistance R13 one end And negative electrode be connected to resistance R15 one end light emitting diode D1, the other end be connected to electric capacity C3 one end resistance R12, another One end is connected to the resistance R5 of electric capacity C4 one end.

Electric capacity C3, the other end that drive division 9 includes the base stage that the other end is connected to triode Q2 are connected to triode Q1's The triode that electric capacity C4, the emitter stage of base stage are grounded Q1's and triode Q2, triode Q1, triode Q2 here be NPN type and model S9014.

When alarm device 3 receives the voltage comparison signal from judgment means 2, two triodes, which will try to be the first, leads It is logical, but because component is variant, only a certain pipe turns at first.If triode Q1 is turned at first, then triode Q1 collector voltages decline, and light emitting diode D1 is lit, and electric capacity C3 left end is close to no-voltage, due to the electricity at capacitor both ends Pressure can not be mutated, so triode Q2 base stages are also pulled near zero voltage, end triode Q2, light emitting diode D2 is not It is bright, as power supply is by chargings of the resistance R12 to electric capacity C3, gradually rise triode Q2 base voltages, when more than 0.6 volt When, Q2 is changed into conducting state from cut-off state, and collector voltage declines, and light emitting diode D2 is lit.At the same time triode The effect for descending through capacitor C4 of Q2 collector voltages makes triode Q1 base voltage is also lower to jump, and triode Q1 is by turning on It is changed into ending, light emitting diode D1 extinguishes, so circulation, and two triodes are just turned on and ended in turn in circuit, and two luminous Just ceaselessly circulation is luminous for diode, and the speed of LED circulations can be changed by changing the capacity of electric capacity.

Here auditory tone cues electric circuit 8 is that one end is connected to voltage comparator A5, voltage comparator A6 tie point and another The loudspeaker BL1 of one end ground connection, for effective cut-out loudspeaker BL1, be also provided with being coupled to here control device with The delay cutoff circuit 11 of delay cutoff auditory tone cues electric circuit 8, here delay cutoff circuit 11 be one end be connected to voltage ratio compared with Device A5, voltage comparator A6 tie point and the other end ground connection time relay KT1, time relay KT1 controlling switches KT1-1 keying, the model H3Y-2 of time relay KT1 here.

The specific course of work is as follows：

Here the infrared spectrum of outside is detected by pyroelectric sensor A2 first and exports human testing signal, And human testing signal is amplified and exported to voltage comparator A5, voltage comparator A6 by special amplifier A1.

Effectively human testing signal is distinguished through over-voltage comparator A5, voltage comparator A6, when and only someone is not When, shown by the stroboscopic of lighting display circuit and the auditory tone cues of auditory tone cues electric circuit 8.

At the same time, delay cutoff circuit 11 can realize the time internal cutting off auditory tone cues electric circuit 8 in setting, avoid growing The auditory tone cues of time impacts to staff.

Moreover, while alarm, also nobody information can be sent to staff's by WIFI alarms On mobile phone.

This specific embodiment is only that it is not to limitation of the present utility model, ability to explanation of the present utility model Field technique personnel can make the modification of no creative contribution to the present embodiment as needed after this specification is read, but As long as all protected in right of the present utility model by Patent Law.

Claims (7)

1. a kind of video frequency monitoring system, it is characterized in that：Including for detecting whether human body nearby and exports human testing signal Human body detection device (1), be coupled to human body detection device (1) to receive the judgement that human testing signal and exporting judges signal Device (2), judgment means (2) are coupled to receive to judge signal and in response to judging signal to realize the alarm device of alarm (3)。

2. video frequency monitoring system according to claim 1, it is characterized in that：Also include be arranged at human body detection device (1) with And to amplify the signal amplifying apparatus of human testing signal (4) between judgment means (2).

3. video frequency monitoring system according to claim 1, it is characterized in that：The judgment means (2) include being coupled to human body Detection means (1) judges the upper limit decision circuitry (5) of signal and is coupled to people to receive human testing signal and export the upper limit Body detection means (1) is to receive human testing signal and bottoming judges the lower limit decision circuitry (6) of signal.

4. video frequency monitoring system according to claim 1, it is characterized in that：The alarm device (3) includes being coupled to judgement Device (2) with receive judge signal and in response to judge signal with realize the light prompt circuit (7) of light prompt and couple In judgment means (2) to receive to judge signal and in response to judging signal to realize the auditory tone cues electric circuit of auditory tone cues (8).

5. video frequency monitoring system according to claim 4, it is characterized in that：The light prompt circuit (7) is included for defeated Go out the drive division (9) of drive signal and be coupled to drive division (9) to receive drive signal and in response to drive signal to realize Luminous illuminating part (10).

6. video frequency monitoring system according to claim 5, it is characterized in that：Also include being coupled to control device to prolong When cut off auditory tone cues electric circuit (8) delay cutoff circuit (11).

7. video frequency monitoring system according to claim 4, it is characterized in that：The auditory tone cues electric circuit (8) is loudspeaker.