CN105448016A - Indoor anti-invasion detection system - Google Patents
Indoor anti-invasion detection system Download PDFInfo
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- CN105448016A CN105448016A CN201511034921.0A CN201511034921A CN105448016A CN 105448016 A CN105448016 A CN 105448016A CN 201511034921 A CN201511034921 A CN 201511034921A CN 105448016 A CN105448016 A CN 105448016A
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- 238000001514 detection method Methods 0.000 title claims abstract description 57
- 230000001740 anti-invasion Effects 0.000 title abstract 2
- 230000000694 effects Effects 0.000 claims description 77
- 238000005516 engineering process Methods 0.000 claims description 13
- 230000009977 dual effect Effects 0.000 claims description 8
- 238000012544 monitoring process Methods 0.000 abstract description 3
- 230000002265 prevention Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 9
- 230000037081 physical activity Effects 0.000 description 7
- 238000012546 transfer Methods 0.000 description 7
- 238000013459 approach Methods 0.000 description 6
- 238000004364 calculation method Methods 0.000 description 5
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- 238000004458 analytical method Methods 0.000 description 2
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- 238000010304 firing Methods 0.000 description 2
- 230000009545 invasion Effects 0.000 description 2
- 241000272525 Anas platyrhynchos Species 0.000 description 1
- 230000003044 adaptive effect Effects 0.000 description 1
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Classifications
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B13/00—Burglar, theft or intruder alarms
- G08B13/18—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B13/00—Burglar, theft or intruder alarms
- G08B13/18—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength
- G08B13/189—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems
- G08B13/19—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems using infrared-radiation detection systems
- G08B13/191—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems using infrared-radiation detection systems using pyroelectric sensor means
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Abstract
The invention relates to an indoor anti-invasion detection system, and the system comprises a first detector which is used for detecting a human body movement signal in an indoor preset region, a second detector which is used for detecting a body movement signal of an outdoor person and has no overlapped coverage with the first detector in the detection range, a control device, a warning device, and a prompt device. When the first detector detects the body movement signal, the control device outputs a triggering signal to the prompt device, and enables the prompt device to enter into a working state with a preset time duration. When the second detector detects the body movement signals, the control device judges whether the prompt device is in the working state or not. If the prompt device is in the working state, the control device enables the prompt device to continuously enter into the working state with the preset time duration. If the prompt device is not in the working state, the control device outputs the triggering signal to the warning device, and enables the warning device to enter into the working state. According to the invention, a user does not need to carry out any prevention arrangement and removal operation, and the system can maintain the continuous monitoring of the persons coming from a window or a balcony.
Description
Technical field
The present invention relates to intelligent security guard field, particularly relate to a kind of indoor anti-intrusion detection system.
Background technology
The electronic product of the strick precaution exotic invasive that current house is available, except video surveillance kind equipment, is mostly use human body heat-releasing infrared probe etc. to carry out noncontact detection.But these products substantially to rely on manual control deploy troops on garrison duty/withdraw a garrison (mainly use a teleswitch operation or mobile phone pass through network remote control.Control according to time set in addition) to coordinate the house of user to live.Want during result owner is in obtain protection, just need each member to carry out the operation of withdrawing a garrison/deploying troops on garrison duty at any time, otherwise unavoidably because the activity of self causes warning.This product of manual control that needs is difficult to popularization and application in residential households owing to using tangible facility not, thus causes the product that numerous enterprises competitively researches and develops " intelligent security guard ".Wherein the EL company of Israel adopts patented mobile vector evaluation algorithm successful development to go out to utilize polynary infrared detection to form and can distinguish that the infrared curtain in direction is popped one's head in, accomplish according to human body walking discriminating direction messenger, to a certain degree achieve user and approach window or balcony activity of going out also need not be withdrawn a garrison.But because its way delays (1 minute to several minutes is adjustable) with regard to the warning allowing probe enter fixing duration " coming indoor " person (owner), during actual use, understand some problem.Such as, when monitoring for balcony, time delay is too short, and user goes out balcony activity and returns with regard to trigger alarm, the behavior of limited subscriber; The long user of time delay returns for a long time from balcony, and probe is but still in and triggers the duty of not reporting to the police to human body, can bring again and take precautions against careless omission; And if user needs balcony to have the activity of longer time just to close curtain probe possibly.Thus actual application in house is also few.
Need the indoor anti-intrusion detection product of manual control at present as above-mentioned, no matter be control with telepilot or mobile phone, kinsfolk often leaves home to return home and will remember to carry out operation of deploying troops on garrison duty/withdraw a garrison, so as not in family nobody time miss and set up defences; Someone returns home and does not withdraw a garrison in time, and use is make us neurolysis really.And user be in rest time go for strick precaution and escort, after that is set up defences, any kinsfolk again row before indoor window or going out balcony will remember that first carrying out remote control withdraws a garrison, in order to avoid oneself trigger alarm.And after leaving, also must remember that remote control is again deployed troops on garrison duty, such request for utilization almost difficulty has several can persevere.In addition, just in case remote control transmitter is lost, damages or need to change battery, acquisition is in time filled a vacancy, is upgraded also not a duck soup.
Summary of the invention
Based on this, be solve the problems of the prior art, the invention provides a kind of indoor anti-intrusion detection system, without the need to the straighforward operation of user, can whole day autonomous operation, identify in time present window, balcony the outsider and warn.
For achieving the above object, the present invention is by the following technical solutions:
A kind of indoor anti-intrusion detection system, comprises the first detector for human activity signal in predeterminable area in detecting chamber, the human activity signal for detecting chamber stranger and the second detector, control device, alarm device and the alarm set that cover with the investigative range zero lap of described first detector;
Described first detector is all connected with the input end of described control device with described second detector, and the output terminal of described control device is connected with described alarm device, described alarm set respectively;
When described first detector detects human activity signal, described control device exports trigger pip to described alarm set, makes described alarm set enter the duty of preset duration;
When described second detector detects human activity signal, described control device judges that whether alarm set is in running order, if, then described control device makes described alarm set continue to enter the duty of preset duration, if not, then described control device exports trigger pip to described alarm device, makes described alarm device enter duty.
The present embodiment utilizes noncontact to detect the commercialized technology of physical activity, detect owner by first detector of (before window or before balcony door) human activity signal in predeterminable area in detecting chamber whether enter balcony or approach window, by obtaining external human activity signal towards the second detector of outdoor, and by the first detector input control device together with the output signal of the second detector, the identification principle that control device is exactly the outsider according to the human activity signal so long as not owner judges, appear at (as in 10 seconds) in alarm set duration of work and do not done alarming processing to every without exception by the human activity signal that the second detector detects, everyly do not carry out alarm without exception all human activity signals detected by the second detector of alarm set duration of work (audio prompt do not continued after such as 10 seconds).Transfixion is not continued after utilizing alarm set to point out user to come window or enter balcony like this, make indoor anti-intrusion detection system before first detecting owner and coming window or after entering balcony, just allow whole system exit state on duty of reporting to the police temporarily, until owner is at window, after the activity disappeared (without human activity signal) of balcony, indoor anti-intrusion detection system is made again to proceed to running status on duty of reporting to the police as early as possible, just can realize not needing owner to manipulate to deploy troops on garrison duty or withdraw a garrison, accomplish whole day autonomous operation, continue window, balcony is monitored, find out in time and appear at window, the outsider of balcony.
Accompanying drawing explanation
Fig. 1 is the structural representation of indoor anti-intrusion detection system of the present invention in embodiment one;
Fig. 2, application scenarios schematic diagram for indoor anti-intrusion detection system of the present invention;
Fig. 3 is the steering logic schematic diagram of control device in the embodiment of the present invention;
Fig. 4 is the Another Application scene schematic diagram of indoor anti-intrusion detection system of the present invention;
Fig. 5 is the balcony application vertical view of indoor anti-intrusion detection system in the embodiment of the present invention two;
Fig. 6 is the circuit theory diagrams of control device in the embodiment of the present invention two.
Embodiment
Below in conjunction with preferred embodiment and accompanying drawing, content of the present invention is described in further detail.Obviously, hereafter described embodiment is only for explaining the present invention, but not limitation of the invention.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.Should be understood that, although adopt term " first ", " second " etc. to describe various information hereinafter, these information should not be limited to these terms, and these terms are only used for the information of same type to be distinguished from each other out.Such as, without departing from the present invention, " first " information also can be called as " second " information, similar, and " second " information also can be called as " first " information.It also should be noted that, for convenience of description, illustrate only part related to the present invention in accompanying drawing but not full content.
Embodiment one
Fig. 1 is the structural representation of indoor anti-intrusion detection system of the present invention in embodiment one, as shown in Figure 1, the indoor anti-intrusion detection system in the present embodiment comprises the first detector 1, second detector 2, control device 3, alarm device 4 and alarm set 5.Wherein, first detector 1 is for human activity signal in predeterminable area in detecting chamber, such as shown in Fig. 2, indoor anti-intrusion detection system is located at window frame internal upper part or balcony door outer upper, and the human activity signal on window limit or balcony doorway is arrived in the first detector 1 detection.The human activity signal of the second detector 2 before detecting window outward or on balcony, the investigative range zero lap of its investigative range and the first detector 1 covers, thus guarantee that user (owner) is movable indoor and must first be detected by the first detector 1 to outdoor, then just detected by the second detector 2.
First detector 1 is all connected with the input end of control device 3 with the second detector 2, and the output terminal of control device 3 is connected with alarm device 4, alarm set 5 respectively.Control device 3 produces different reaction output according to the signal of identification principle to the first detector 1 and the input of the second detector 2 of human activity signal.When the first detector 1 detects human activity signal, control device 3 exports trigger pip to alarm set 5, makes alarm set 5 enter the duty of preset duration.When the second detector 2 detects human activity signal, control device 3 judges that whether alarm set 5 is in running order, if, then control device 3 makes alarm set 5 continue to enter the duty of preset duration, if not, then control device 3 exports trigger pip to alarm device 4, makes 4 alarm devices enter duty.The identification principle of above-mentioned human activity signal can refer to shown in Fig. 3.
Above-mentioned alarm set 5 can be various ways, and such as alarm set 5 is audio alert device, and remind user by sending prompting audio frequency, alarm set 5 can also be light alarm set, is reminded user by flash of light.Only be described for audio alert device below, but can not limit the scope of the invention with this.
Concrete, with reference to shown in Fig. 3, preset duration is 10 seconds, after first detector 1 measures human activity signal, control device 3 exports trigger pip to alarm set 5, makes alarm set 5 enter the duty of 10 seconds, such as alarm set 5 first sends the first prompting audio frequency, reminding user is in the exterior space, does not continue transfixion more than 10 seconds (dormancy of such as lying down), makes the warning function of alarm device 4 suppressed (be equal to and withdraw a garrison) simultaneously by control device 3.If after this user keeps interrupted activity in the external world, when second detector 2 detects human activity signal again, due to alarm set in working order, therefore control device 3 only can be caused to continue to export the duty that trigger pip maintains alarm set 5, in other words, the second detector 2 output signal makes indoor anti-intrusion detection system be in all the time between the active stage of window or balcony user and exits state on duty of reporting to the police.Preferably, alarm set was triggered work after 7,8 seconds, can because user keep interrupted activity or has returned to indoor on window or balcony, make the second detector 2 during this period in do not detect human activity signal and go to maintain the work of alarm set 5, and send the second prompting audio frequency, inform that the indoor anti-intrusion detection system of user is about to proceed to the warning state on duty can finding out the outsider at any time.
Suppose that user stops action in the external world, and keep the time of stationary state more than 10 seconds, like this when user is again movable, second detector 2 will detect human activity signal, now alarm set 5 is not in working order, control device 3 will export trigger pip to alarm device 4, and alarm device 4 enters duty after receiving trigger pip, perform alarm action.
The commercialized technology of current adoptable noncontact detection physical activity mainly comprises passive type human body heat-releasing infrared acquisition, active infrared detection, microwave Doppler detection, ultrasonic listening etc.In the present invention, the first detector is used for the human activity signal in detecting chamber in predeterminable area, therefore in the optional embodiment of one, first detector 1 can adopt curtain-type infrared eye, its search coverage of curtain-type infrared eye is a narrower belt-like zone (such as Fig. 2, banded narrow zone in Fig. 4 shown in dotted line), just trigger detector is understood when only entering search coverage, curtain-type infrared eye is arranged on window frame internal upper part or balcony door outer upper, be equivalent to define on a vertical plane together " infrared ray curtain " (border), like this, the physical activity do not entered in infrared ray curtain region can not trigger the first detector, the activity space that indoor occupant is maximum can be left for.
In the optional embodiment of one, the second detector 2 can adopt the detector that singly reflects, dual technology detector three reflects in detector any one.Wherein single mirror detector can select infrared eye.Dual technology detector superposes Doppler's microwave to carry out equidirectional aided detection when carrying out human body heat-releasing infrared acquisition, microwave Doppler detector is by launched microwave signal in sky alignment search coverage, when in search coverage without moving target time, the microwave signal frequency that microwave Doppler detector receives is identical with emission signal frequency.When there being moving target, due to Doppler effect, the microwave signal frequency of target reflection will offset, and microwave Doppler detector can judge there is physical activity in search coverage by analysis.When infrared probe and microwave Doppler transducer both detect moving target, dual technology detector is just determined with moving target, this can improve the discrimination of detector to human activity signal, reduce the wrong report sent because toy is movable, improve the adaptive faculty of detector outside faced chamber under environment for use, namely the second detector 2 shown in Fig. 4 adopts the dual technology detector be made up of infrared eye and microwave Doppler detector.Certainly, this second detector also can be taked only with the detection of list mirror or the more accurate three mirror detectors of human body heat-releasing infrared acquisition.Three mirror detectors on the basis of dual technology detector, add again microprocessor carry out the process of signal mode analysis and calculation, reduces the rate of false alarm of detector further.
In the optional embodiment of one, the second detector 2, according to dual technology detector, can comprise the first infrared acquisition, the second infrared eye and microwave Doppler detector.Second detector 2 adopts this combinations of detectors structure, can obviously reduce only bring by the infrared a kind of Detection Techniques of human body heat-releasing wrong report, misrepresent deliberately.Certainly, if the second detector 2 is only for places such as directly not external windows, infrared eye (detection of singly reflecting) this simplified way can also only be adopted.
In the optional embodiment of one, alarm device 4 comprises sound light alarming circuit, and the warning messages such as after alarm device 4 receives start signal, sound light alarming circuit is sounded, flash of light, to remind the neighbours of rest owner or user.
In the optional embodiment of one, alarm device 4 comprises CCD camera assembly, and after alarm device 4 receives start signal, CCD camera assembly shooting environmental photo carries out storing or automatically uploading in network, to preserve the evidence of illegal invasion.
Further, alarm device 4 also comprises wireless code transmitting device, and wireless code transmitting device can to outer transmitting wireless encoding signal after reception start signal.Such as, alarm code signal is transmitted into mobile phone, the base of the rear auto dialing calling party of wireless receiver decoding of access to mobile network or fixed line circuit, informs that user window or balcony have evildoer to attempt to swarm into.
Control device 3 can by the identification principle (with reference to Fig. 3 shown in) of DLC (digital logic circuit) according to above-mentioned human activity signal, realize the control to alarm device 4 and alarm set 5, the control that also can realize alarm device 4 and alarm set 5 by driven by program programmable circuit, the present embodiment does not limit this.
In sum, the present embodiment utilizes noncontact to detect the commercialized technology of physical activity, detect owner by first detector of (before window or before balcony door) human activity signal in predeterminable area in detecting chamber whether enter balcony or approach window, by obtaining external human activity signal towards the second detector of outdoor, and by the first detector input control device together with the output signal of the second detector, the identification principle that control device is exactly the outsider according to the human activity signal so long as not owner judges, every alarm set duration of work interior (as in 10 seconds) that appears at is made not done alarming processing without exception by the human activity signal that the second detector detects, everyly do not carry out alarm without exception all human activity signals detected by the second detector of alarm set duration of work (audio prompt do not continued after such as 10 seconds).Transfixion is not continued after utilizing alarm set to point out user to come window or enter balcony like this, make indoor anti-intrusion detection system before first detecting user (owner) and coming window or after entering balcony, just allow whole system exit state on duty of reporting to the police temporarily, continuously active is thereafter made to make system continue to be maintained at and exit the state on duty of reporting to the police by the output signal of the second detector again, until owner is at window, the activity disappeared (without human activity signal) of balcony is after such as 10 seconds, indoor anti-intrusion detection system can proceed to again the running status of report to the police (setting up defences) on duty, just can realize not needing owner to manipulate to deploy troops on garrison duty or withdraw a garrison, accomplish whole day autonomous operation, continue window, balcony is monitored, find out in time and appear at window, the outsider of balcony.
Embodiment two
Fig. 5 is the balcony application vertical view of indoor anti-intrusion detection system in the present embodiment two.With reference to shown in Fig. 5, and in the lump referring to figs. 1 through Fig. 4, in the present embodiment two, the first detector 1 in indoor anti-intrusion detection system is curtain-type infrared eye 11, it is narrow that curtain-type infrared eye 11 visits angle downwards, can find the owner approaching window or enter balcony.Second detector 2 comprises the first infrared eye 21, second infrared eye 22 and microwave Doppler detector 23, form wide-angle to detect on a large scale, only detect human activity signal at microwave Doppler detector 23, and when at least one in the first infrared eye 21, second infrared eye 22 detects human activity signal, the second detector 2 just judges to detect human activity signal.As Fig. 2 shows, isolate with baffle plate between first detector 1 and the second detector 2, to make the non-intersect remittance of infrared acquisition scope at two detectors of vertical downward direction (although the investigative range of microwave Doppler detector 23 is larger, half elliptic as shown in phantom in Figure 4, but the second detector 2 just can trigger after must all detecting human activity signal with microwave Doppler detector 23 and infrared eye, therefore the actual detection scope of the first detector 1 and the second detector 2 can't overlappingly cover).First detector 1 and the second detector 2 can be placed in one altogether, actual when using in window frame on overhead placed in the middle, side or, French window outer at balcony door between two parties liftoff about about 2 meters fixing.
The output terminal of the first infrared eye 21, second infrared eye 22, microwave Doppler detector 23, curtain-type infrared eye 11 is all connected to the input end of control device 3.Control device 3 processes according to the output signal of identification principle to each detector of above-mentioned human activity signal, finally judges whether to there is illegal invasion behavior.
Concrete, based on the identification principle of the human activity signal described in embodiment one, when curtain-type infrared eye 11 detects human activity signal, control device 3 exports trigger pip to alarm set 5, alarm set 5 is made to enter the duty of preset duration (such as 10 seconds): such as first make alarm set 5 send the first prompting audio frequency, reminding user is in the exterior space.If it is suitably movable that user can remain on outdoor, the second detector 2 detects human activity signal by continuing, then control device 3 continues to export trigger pip to alarm set 5, maintains the continuous firing state of alarm set 5.
When the second detector 2 exceedes after preset duration (such as 10 seconds) do not detect human activity signal, the operation of control device 3 pairs of alarm devices 4 suppresses to terminate, after this each human activity signal that the second detector 2 detects will make control device 3 export trigger pip to alarm device 4, make alarm device 4 enter duty, send and report to the police or perform calling contact etc. operation.
For describing the principle of work of control device 3 in indoor anti-intrusion detection system in detail, provide the instantiation of a control device be made up of DLC (digital logic circuit) 3 below.
Fig. 6 is the circuit theory diagrams of control device 3 in the present embodiment.As shown in Figure 6, and in the lump referring to figs. 1 through Fig. 5, control device 3 comprises resistance R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, inverter module U1, U2, U3, U4, U5, U6, U7, U8, U9, diode D1, D2, D3, D4, D5, D6, D7, D8, electric capacity C1, C2, switching transistor T1, T2.Wherein, inverter module can be phase inverter, also can be the logic circuit unit with phase inverter equivalence.
The input end of inverter module U1 is connected with the output terminal of microwave Doppler detector 23 by resistance R1, and the output terminal of inverter module U1 is connected with the input end of inverter module U2.The positive pole of diode D1 is connected with the output terminal of inverter module U2 by resistance R2, and the output terminal of diode D1 is connected with the input end of inverter module U3.The input end of inverter module U3 is respectively by electric capacity C1, resistance R3 ground connection, and the output terminal of inverter module U3 is connected with switching transistor T1 by resistance R4.The input end of inverter module U4 is connected with the negative pole of diode D2, the negative pole of diode D3 respectively by resistance R5, and the output terminal of inverter module U4 is connected with the input end of inverter module U5.The positive pole of diode D2 is connected with the output terminal of the first infrared eye 21, and the positive pole of diode D3 is connected with the output terminal of the second infrared eye 22.The positive pole of diode D4 is connected with the positive pole of diode D1, the positive pole of diode D6 respectively, and the negative pole of diode D4 is connected with the output terminal of inverter module U5, the positive pole of diode D5 respectively.The input end of inverter module U6 is connected with the output terminal of curtain-type infrared eye 11 by resistance R8, and the output terminal of inverter module U6 is connected with the input end of inverter module U7.The positive pole of diode D7 is connected with the output terminal of inverter module U7, and the negative pole of diode D7 is connected with the input end of inverter module U8.The input end of inverter module U8 is respectively by electric capacity C2, resistance R9 ground connection; The output terminal of inverter module U8 is connected with the negative pole of diode D6, the input end of inverter module U9 respectively.The first end of resistance R6 is connected with the negative pole of diode D5, and second end of resistance R6 is connected with the negative pole of diode D7 by resistance R7, and second end of resistance R6 is also connected with the positive pole of diode D8.The first end of resistance R10 is connected with the negative pole of diode D8, the output terminal of inverter module U9 respectively, and second end of resistance R10 is connected with switching transistor T2.
In the optional embodiment of one, switching transistor T1 is PNP transistor, and alarm device 4 can be made after saturation conduction to enter duty.Switching transistor T2 is NPN transistor, and alarm set 5 can be made after saturation conduction to enter duty.As shown in Figure 6, the base stage contact resistance R4 of PNP transistor T1, collector is connected with alarm device 4, and emitter connects power positive end; The base stage contact resistance R10 of NPN transistor T2, collector connects alarm set 5, grounded emitter.
Optionally, the time constant of the RC circuit that resistance R9, electric capacity C2 are formed is the twice of above-mentioned Preset Time, such as 20 seconds.
Optionally, the time constant of RC circuit that resistance R3 and electric capacity C1 is formed is 10 seconds.
Use positive level logical signal that the operation logic of circuit shown in Fig. 6 is described below, explain the principle of work of control device 3 with this.In figure 6, signal VD1 refers in particular to microwave Doppler detector 23 after detecting human activity signal at every turn, externally exports the square-wave signal of about 1 second about 3V after its internal circuit calculation process; In like manner, VD2 refers in particular to the first infrared eye 21 after detecting human activity signal at every turn, externally exports the square-wave signal of about 1 second about 3V after its internal circuit calculation process; VD3 refers in particular to the second infrared eye 22 after detecting human activity signal at every turn, externally exports the square-wave signal of about 1 second about 3V after its internal circuit calculation process; VD4 refers in particular to curtain-type infrared eye 11 after detecting human activity signal at every turn, externally exports the square-wave signal of about 1 second about 3V after its internal circuit calculation process.As the optional embodiment of one, resistance R1, R5, R8 are as current-limiting resistance, and desirable 220K Ω, electric capacity C1, C2 all can select ceramic condenser.
With reference to circuit shown in Fig. 6, in Fig. 6, the first infrared eye 21, second infrared eye 22, microwave Doppler detector 23, curtain-type infrared eye 11, the operating voltage of each inverter module, PNP transistor emitter external voltage are V
dDoptionally, V in the present embodiment
dDfor 5V
.
Circuit working process shown in Fig. 6 is as follows:
If indoor, all nobody approaches window or enters balcony in outdoor, first detector 1, second detector 2 does not all detect human activity signal, now VD1=VD2=VD3=VD4=0 (no-voltage), the output of inverter module U2, U5, U7 and U9 is all low level, A, B, N, B each point current potential is all electronegative potential (close to zero), inverter module U3 exports high level, and thus switching transistor T1, T2 can not be switched on.Alarm device 4 and alarm set 5 there is no and power up and would not enter work.
After this still nobody approaches before window or enters balcony in indoor, and the output VD4 of the first detector 1 (curtain-type infrared eye 11) is 0.But the second detector 2 detects human activity signal, namely VD1 with VD2 or VD3 successively becomes high level signal (as above-mentioned, VD1, VD2, VD3, VD4 are the high level square-wave signals of about 1 second) here.
If first there is VD1 (microwave Doppler detector) to occur the high level square-wave signal of 1 second, although inverter module U2 can export high level immediately, but the output terminal due to inverter module U5 is low level always, through the clamping action of diode D4, A point can not be charged by diode D1 and form noble potential, inverter module U3 still exports high level, and PNP transistor T1 is still in cut-off state, and alarm device 4 does not work.Because B point remains electronegative potential, thus N point is also electronegative potential, and NPN transistor T2 also can not conducting, and alarm set 5 also can not work.As can be seen here, when only having microwave Doppler detector 23 to detect human activity signal in the second detector 2, indoor anti-intrusion detection system can not cause alarm.This can be avoided the wrong report caused of rocking etc. of the wet clothes of outside airing, leaf to misrepresent deliberately.
If also there be VD2 or VD3 to occur high level square wave (namely infrared eye also has detection to export) in 1 second after high level square-wave signal appears in VD1, because the output of inverter module U5 transfers high level to, P point becomes noble potential (inverter module U8 exports high level always), A point makes PNP transistor T1 conducting with regard to can inverter module U3 be caused by diode D1 charging to transfer low level at noble potential rapidly, alarm device 4 obtains the (audible alarm that works close to powering up of VDD, take pictures or launch wireless encoding signal call contact etc.), and operating time can have an appointment 5 seconds (because resistance R3, the time constant of the RC circuit that electric capacity C1 is formed is 10 seconds, then
) or longer (the second detector 2 continues to export high level, and alarm device 4 will continue alarm).Otherwise, if first there is the high level square wave of (infrared eye) VD2 or VD3 to occur, the high level square wave of (microwave Doppler detector) VD1 is had again to occur in 1 second, then inverter module U3 also directly can overturn as low level and make PNP transistor T1 conducting along with the appearance of high level, drives alarm device 4 to work.
And if after high level square wave appears in VD1, do not have VD2, VD3 to occur high level square wave, no matter then how long the high level square wave of VD1 continues, A point is electronegative potential all the time, and PNP transistor T1 will conducting make alarm device 4 work all the time.
Equally, if only have VD2 or VD3 occur high level square wave and do not have VD1 to occur high level square wave, namely pyroscan is only had to be triggered, the high level of inverter module U5 output is owing to being isolated by diode D4 as seen from Figure 5, cause P point, A point still maintain electronegative potential and make inverter module U3 export high level, PNP transistor T1 can not conducting make alarm device 4 work.This can be avoided only having infrared eye to be triggered equally, and wrong report that (such as interim thermal current, sunlight) etc. cause is misrepresented deliberately.
The process (being exactly the process of control device 3 trigger alerts) more than making alarm device 4 work comparatively complexity is because the second detector 2 that doppler detector 23, first infrared eye 21, second infrared eye 22 is formed has played the effect of dual technology detector herein, namely only has to meet doppler detector and infrared eye and almost detect human activity signal simultaneously and just can carry out warning and treat.Combinationally using like this can obviously reduce only bring by the infrared a kind of Detection Techniques of human body heat-releasing wrong report, misrepresent deliberately.Certainly, existing description above, the second detector also can adopt three mirror detectors or only use infrared eye (detection of singly reflecting), adopts this simplified way of single mirror detection to can be used for the places such as directly not external window.
If indoor first have owner approach before window or enter balcony, as seen from Figure 6, because VD4 occurs that high level square wave causes inverter module U7 to export and transfers high level to, the charging that the RC loop that electric capacity C2, resistance R9 are formed obtains diode D7 makes inverter module U8 output low level at least 10 second.Due to the clamper of diode D6, P point will be in electronegative potential 10 second, trigger inverter unit U3 output low level can not make PNP transistor T1 conducting and cause alarm device 4 to work during this, being namely equivalent to make indoor anti-intrusion detection system to exit to report to the police state 10 on duty second.Inverter module U9 output simultaneously transfers high level to and also has 10 seconds, thus make NPN transistor T2 conducting cause alarm set work 10 second, such as send certain prompting sound with reminding user (owner) in outdoor, not complete transfixion, otherwise it is alert that the own activity occurred afterwards more than 10 seconds will cause alarm.
If after this user left window or returns indoor in 10 seconds, in circuit, the noble potential of B point can not get continued support and makes phase inverter U8 be output into high level after resistance R9 is more than half to electric capacity C1 electric discharge, phase inverter U9 output low level makes NPN transistor T2 terminate conducting, and alarm set 5 will quit work.Simultaneously because P point returns to noble potential, the second detector 2 is in again the state on duty that can cause alarm at any time.
If user continues after 10 seconds at window or balcony, so long as not complete transfixion, as above-mentioned, investigative range due to the first detector 1 and the second detector 2 is mutually isolated does not intersect, therefore owner arrives outdoor activity indoor must be first cause VD4 to occur high level square wave, phase inverter U8 is made to be output in low level about 10 second, continue to stretch forward outside window as owner or enter balcony, could be detected by the second detector 2, as long as after this there is continual human activity signal (high level square wave appears in VD2 or VD3), the noble potential of B point just can be made to obtain continuous print maintain, thus make alarm set 5 continuous firing, specifically see Fig. 5.Although the continuation activity of owner causes the second detector 2 to output again VD1, VD2 or VD3 of high level, but the low level that during B point maintains noble potential, inverter module U8 exports is through the clamper of diode D6, P point can be made to become electronegative potential, even if thus inverter module U2, U5 exports high level inverter module U3 also can not be made to overturn out low level and make PNP transistor T1 conducting always.Certainly, when inverter module U5 exports as low level, or due to the clamping action of diode D8 during inverter module U9 output low level, N point there will not be high level to go maintenance, and to the charging of B point, (in Fig. 5, resistance R7 is 10K Ω, resistance R9 is 10M Ω, and resistance R7 is far smaller than resistance R9.As long as) but occur that VD2 or VD3 (as long as namely having the infrared eye in the second detector 2 to detect the physical activity of user) the inverter module U5 of high level will transfer high level to and continue charging (in Fig. 5, resistance R6 is 220K Ω, is far smaller than resistance R9 equally) through diode D5, resistance R6, resistance R7 to electric capacity C2.
Owner exceedes such as 8 seconds in second in the rest time of outdoor in fact, alarm set 5 will send the second information at 10 seconds precedents such as the 8th second, the indoor anti-intrusion detection system of reminding user is about to enter state on duty of reporting to the police, if user is just continuation activity after 10 seconds, first will be detected by the second detector 2, A point will occur that high level causes PNP transistor T1 conducting to cause alarm device 4 and enters duty, thus causes alarm.No matter and user (owner) activity outside how long, as long as return indoor more than 10 seconds, because electric capacity C2 loses charging support, B point will transfer electronegative potential to, U8 exports and transfers high level to, as aforementioned, indoor anti-intrusion detection system enters again state on duty of reporting to the police, as long as the second detector has output signal (VD1, VD2 or VD3 occur) just can cause T1 conducting at any time and causes alarm device 4 and work.
For the use sight that many people occur, above explanation can have equifinality.
As seen from the above description, control device 3 is built by the DLC (digital logic circuit) shown in Fig. 6, just can the human activity signal that the first detector 1 and the second detector 2 detect independently be processed, decision causes alarm or to enter etc. to be reminded, so just can realize owner user not period Timeliness coverage window and balcony on the outsider that occurs, the active stage chien shih detection system that can occur owner again continues to exit state on duty of reporting to the police, no matter and owner on window or balcony, activity is how long, after leaving window or balcony blink, indoor anti-intrusion detection system can enter again state on duty of reporting to the police.
In sum, the present invention utilizes noncontact to detect the commercialized technology of physical activity, by first detector of human activity signal in the detectable indoor predeterminable areas such as curtain-type infrared eye, detect owner and whether enter balcony or before approaching window, by obtaining outdoor human activity signal towards the second detector of outdoor, and by the first detector input control device together with the output signal of the second detector, control device is not according to being that owner occurs being exactly that the judgment principle of the outsider judges, alarming processing is not done without exception by the human activity signal that the second detector detects to being in (as in 10 seconds) in alarm set duration of work, to all not in alarm set duration of work all elder generations carried out alarm without exception by the human activity signal that the second detector detects, and constantly point out user to come window by alarm set or continue transfixion after entering balcony, user (owner) is come before window or its enter balcony after just allow indoor anti-intrusion detection system exit state on duty of reporting to the police temporarily, until owner is at window, after the activity disappeared (without human activity signal) of balcony, indoor anti-intrusion detection system is made again to proceed to warning as early as possible on duty, just can appear at window after Timeliness coverage, the outsider of balcony also warns it, thus realize not needing owner to manipulate to deploy troops on garrison duty or withdraw a garrison, just energy whole day autonomous operation, continue window, balcony carries out strick precaution monitoring.
Each technical characteristic of the above embodiment can combine arbitrarily, for making description succinct, the all possible combination of each technical characteristic in above-described embodiment is not all described, but, as long as the combination of these technical characteristics does not exist contradiction, be all considered to be the scope that this instructions is recorded.
The above embodiment only have expressed several embodiment of the present invention, and it describes comparatively concrete and detailed, but can not therefore be construed as limiting the scope of the patent.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Claims (10)
1. an indoor anti-intrusion detection system, it is characterized in that, comprise the first detector for human activity signal in predeterminable area in detecting chamber, the human activity signal for detecting chamber stranger and the second detector, control device, alarm device and the alarm set that cover with the investigative range zero lap of described first detector;
Described first detector is all connected with the input end of described control device with described second detector, and the output terminal of described control device is connected with described alarm device, described alarm set respectively;
When described first detector detects human activity signal, described control device exports trigger pip to described alarm set, makes described alarm set enter the duty of preset duration; When described second detector detects human activity signal, described control device judges that whether alarm set is in running order, if, then described control device makes described alarm set continue to enter the duty of preset duration, if not, then described control device exports trigger pip to described alarm device, makes described alarm device enter duty.
2. indoor anti-intrusion detection system according to claim 1, is characterized in that, described first detector is curtain-type infrared eye.
3. indoor anti-intrusion detection system according to claim 1 and 2, is characterized in that, described second detector be singly reflect detector, dual technology detector, three mirror detectors in any one.
4. indoor anti-intrusion detection system according to claim 1 and 2, it is characterized in that, described alarm device comprises sound light alarming circuit and/or CCD camera assembly.
5. indoor anti-intrusion detection system according to claim 4, it is characterized in that, described alarm device also comprises wireless code transmitting device, described wireless code transmitting device reception start signal after to outer transmitting wireless encoding signal.
6. indoor anti-intrusion detection system according to claim 1 and 2, it is characterized in that, described alarm set comprises audio alert device.
7. indoor anti-intrusion detection system according to claim 1 and 2, is characterized in that, described second detector comprises the first infrared eye, the second infrared eye and microwave Doppler detector.
8. indoor anti-intrusion detection system according to claim 7, it is characterized in that, described control device comprises resistance R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, inverter module U1, U2, U3, U4, U5, U6, U7, U8, U9, diode D1, D2, D3, D4, D5, D6, D7, D8, electric capacity C1, C2, switching transistor T1, T2;
The input end of inverter module U1 is connected with the output terminal of described microwave Doppler detector by resistance R1, and the output terminal of inverter module U1 is connected with the input end of inverter module U2;
The positive pole of diode D1 is connected with the output terminal of inverter module U2 by resistance R2, and the output terminal of diode D1 is connected with the input end of inverter module U3;
The input end of inverter module U3 is respectively by electric capacity C1, resistance R3 ground connection, and the output terminal of inverter module U3 is connected with switching transistor T1 by resistance R4;
The input end of inverter module U4 is connected with the negative pole of diode D2, the negative pole of diode D3 respectively by resistance R5, and the output terminal of inverter module U4 is connected with the input end of inverter module U5;
The positive pole of diode D2 is connected with the output terminal of described first infrared eye, and the positive pole of diode D3 is connected with the output terminal of described second infrared eye;
The positive pole of diode D4 is connected with the positive pole of diode D1, the positive pole of diode D6 respectively, and the negative pole of diode D4 is connected with the output terminal of inverter module U5, the positive pole of diode D5 respectively;
The input end of inverter module U6 is connected with the output terminal of described first detector by resistance R8, and the output terminal of inverter module U6 is connected with the input end of inverter module U7;
The positive pole of diode D7 is connected with the output terminal of inverter module U7, and the negative pole of diode D7 is connected with the input end of inverter module U8;
The input end of inverter module U8 is respectively by electric capacity C2, resistance R9 ground connection; The output terminal of inverter module U8 is connected with the negative pole of diode D6, the input end of inverter module U9 respectively;
The first end of resistance R6 is connected with the negative pole of diode D5, and second end of resistance R6 is connected with the negative pole of diode D7 by resistance R7, and second end of resistance R6 is also connected with the positive pole of diode D8;
The first end of resistance R10 is connected with the negative pole of diode D8, the output terminal of inverter module U9 respectively, and second end of resistance R10 is connected with switching transistor T2.
9. indoor anti-intrusion detection system according to claim 8, is characterized in that, the time constant of the RC circuit that resistance R9, electric capacity C2 are formed is the twice of described preset duration.
10. indoor anti-intrusion detection system according to claim 8, is characterized in that, switching transistor T1 is PNP transistor, and switching transistor T2 is NPN transistor.
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