CN204945406U - A kind of mouse mark detection instrument probe - Google Patents
A kind of mouse mark detection instrument probe Download PDFInfo
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- CN204945406U CN204945406U CN201520556942.8U CN201520556942U CN204945406U CN 204945406 U CN204945406 U CN 204945406U CN 201520556942 U CN201520556942 U CN 201520556942U CN 204945406 U CN204945406 U CN 204945406U
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Abstract
The utility model discloses a kind of mouse mark detection instrument probe, this probe comprises image acquisition units, sensing unit, control module and power supply unit; When mouse is through the search coverage of probe, the infrared radiation triggers sense unit that mouse sends, sensing unit will produce electric signal, and electric signal is sent to control module, control module sends steering order to image acquisition units according to the electric signal that it receives, and is gathered by the movement locus of image acquisition units to mouse; Power supply is used for for probe provides work institute energy requirement.The probe of the application achieves the movement locus accurately and timely recording mouse, shortens the time that quarantine functionary looks for the trace of mouse greatly.
Description
Technical field
The utility model relates to a kind of mouse mark detection instrument probe.
Background technology
Muroid and human lives's relation are very close, and mouse disease can cause serious harm to the mankind, is one of severe challenge of whole world mankind's facing.Related data shows, nearly 57 kinds of human disease can be made in the pathogenic microorganism that muroid is carried, the death toll that the infectious disease that only this kind of mouse of the plague is propagated causes in three pandemics has just exceeded the summation that death toll is recorded in all previous war, causes great economic loss simultaneously.But, because mouse volume is little, it is sensitive to take action, and general only in nocturnalism, for a long time, quarantine departments does not all have very effective way to the monitoring that muroid concealed by the entry and exit vehicles always.Quarantine functionary often relies on the experience of oneself to look for the trace of mouse, not only wastes time and energy, but also may cause unnecessary puzzlement to quarantine object.
At present, the mouse mark detection method such as ocular estimate, mouse cage method, Mousetrap capture, mouse sticking plate method, Powder mark method that also main dependence is traditional carries out muroid monitoring to the entry and exit vehicles.These methods or need quarantine functionary to have rich experience, in examined region, can search and differentiate the vestige of efficient mouse and muroid activity exactly, need quarantine functionary in respective regions, lay the monitoring tools such as mouse cage, the mousetrap and talcum powder, quarantine by catching or observe the modes such as rat foot print.In actual applications, these method accuracys and specific aim lower, and need longer monitoring time, its detection efficiency be low, poor accuracy, quarantine cycle be long, be difficult to widely use entering and leaving the border in the vehicles.
Therefore, how to solve the problem and become the technical matters that those skilled in the art need solution badly.
Utility model content
For Problems existing in background technology, the purpose of this utility model is to provide a kind of mouse mark detection instrument to pop one's head in, the infrared radiation that this probe uses pyroelectric sensor collection mouse health to send, screen through the analysis of signal analysis discriminator circuit and achieve and identify mouse exactly, and combining image information acquisition system, recording image information timely, thus the work efficiency drastically increasing quarantine functionary, efficiently solve Problems existing in background technology.
The purpose of this utility model is achieved through the following technical solutions:
A mouse mark detection instrument probe, described probe comprises image acquisition units, sensing unit, control module and power supply unit; When mouse is through the search coverage of probe, the infrared radiation that mouse sends triggers described sensing unit, sensing unit will produce electric signal, and described electric signal is sent to described control module, control module sends steering order to described image acquisition units according to the electric signal that it receives, and is gathered by the movement locus of image acquisition units to mouse; Described power supply is used for for probe provides work institute energy requirement.
Further, described sensing unit comprises sensor and signal amplifies and shaping circuit, and described sensor is pyroelectric sensor, and the electric signal that sensor sends is sent to described control module after described signal amplifies and shaping circuit amplifies shaping.
Further, described sensing unit also comprises signal analysis discriminator circuit, the electric signal that sensor sends is sent to described signal analysis discriminator circuit after described signal amplifies and shaping circuit amplifies shaping, and electric signal is sent to described control module after the analysis of signal analysis discriminator circuit is screened.
Further, described signal amplifies and shaping circuit is made up of in-phase amplifier, filter capacitor and inverting amplifier, first the electric signal that described sensor sends amplifies through described in-phase amplifier, then remove DC component through described filter capacitor, amplify process further finally by described inverting amplifier.
Further, described signal analysis discriminator circuit is by two-way inspection width device, form with door and state timing latch, amplify the electric signal after amplifying shaping with shaping circuit through described signal and first input described two-way inspection width device, when the intensity of electric signal exceedes the setting voltage of two-way inspection width device, two-way inspection width device is by output low level pulse, described low level pulse through described synthesize with door after become a multipulse signal, and described multipulse signal is inputted described state timing latch, state timing latch judges the pulse width of multipulse signal and the interpulse time interval, only retain the pulse signal meeting and meet setting width, the low level trigger pip of final stable output is to described control module.
Further, described power supply unit is provided with power purification circuit, and described power purification circuit is connected with power supply, for removing the ripple in power supply.
Further, described probe is provided with mandate interface, and detection main frame by the configuration information exchange of described mandate Interface realization and probe, and arranges identity ID to each probe.
The utility model has following positive technique effect:
Probe of the present utility model can find mouse mark timely and effectively, and can recording image information in time; Detection efficiency obtains significant raising, and ensure that detection accuracy, shorten the quarantine cycle.
Accompanying drawing explanation
Fig. 1 is the structural representation of probe of the present utility model;
Fig. 2 is the schematic diagram of probe detection mouse mark of the present utility model;
Fig. 3 is that signal of the present utility model amplifies the structural representation with shaping circuit;
Fig. 4 is the structural representation of signal analysis discriminator circuit of the present utility model;
Fig. 5 is the structural representation of power purification circuit of the present utility model.
Embodiment
Below, with reference to accompanying drawing, more fully illustrate the utility model, accompanying drawing acceptance of the bid shows exemplary embodiment of the present utility model.But the utility model can be presented as multiple multi-form, and should not be construed as the exemplary embodiment being confined to describe here.But, these embodiments are provided, thus make the utility model comprehensively with complete, and scope of the present utility model is fully conveyed to those of ordinary skill in the art.
For ease of illustrating, here can use such as " on ", the space relative terms such as D score " left side " " right side ", for illustration of the element of shown in figure or the feature relation relative to another element or feature.It should be understood that except the orientation shown in figure, spatial terminology is intended to comprise device different azimuth in use or operation.Such as, if the device in figure is squeezed, be stated as the element being positioned at other elements or feature D score will be positioned at other elements or feature " on ".Therefore, exemplary term D score can comprise upper and lower both orientation.Device can otherwise be located (90-degree rotation or be positioned at other orientation), and space used here illustrates relatively can correspondingly explain.
As shown in Figure 1, the probe of the application comprises image acquisition units, sensing unit, control module and power supply unit; When mouse is through the search coverage of probe, the infrared radiation triggers sense unit that mouse sends, sensing unit will produce electric signal, and electric signal is sent to control module, control module sends steering order to image acquisition units according to the electric signal that it receives, and is gathered by the movement locus of image acquisition units to mouse; Power supply is used for for probe provides work institute energy requirement.The image acquisition units of the application self can be provided with storage unit, its collect after image information by autostore to self with memory storage.
The sensing unit of the application comprises sensor and signal amplifies and shaping circuit, and wherein pyroelectric sensor is made up of two pieces of on all four pyroelectric ceramics crystal (LiTaO3), and the polarised direction of two pieces of crystal is contrary, is cascaded.When not having infrared thermal radiation to be radiated on crystal, or infrared ray irradiates two pieces of crystal uniformly, and due to polarity phase anti-series, so concatermer remains electric neutrality, two ends do not have voltage.
As shown in Figure 2, when toy is through search coverage, due to through lens focus, the infrared ray that toy is launched is focused into minimum hot spot, can only be radiated at wherein on one piece of crystal, there is atomic weak voltage at this moment whole concatermer two sections of effects due to polarization charge.Sensor internal also encapsulates the high JFET field effect transistor of an input impedance, the change of this point charge, is enough to cause the electric current flowing through JFET pipe DS pin that observable change occurs.Through amplifier below, the signal of toy from process before sensor just can be detected.Different from the direction that toy enters sensitizing range according to the arrangement in Crystal polarization direction, output signal polarity may be different.(under infrared thermal release electric detector high sensitivity, improving the measure of false triggering).
As shown in Figure 3, signal amplifies and shaping circuit is made up of in-phase amplifier, filter capacitor and inverting amplifier, first the electric signal that sensor sends amplifies through in-phase amplifier, then removes DC component through filter capacitor, amplifies process further finally by inverting amplifier; Although sensor internal has been integrated with JFET field effect transistor, its output is also very faint, only has several millivolt.Need, with amplifier below, signal is amplified to V one-level, could distinguish signal and trigger.Consider that sensor belongs to high impedance current device, current output sensor, through external load resistors, is transformed to atomic weak voltage signal, after immediately following a direct-coupled in-phase amplifier.(in-phase input end of operational amplifier has higher input impedance, better can obtain feeble signal.) after in-phase amplifier amplifies, through being ac-coupled to rear class, continue to amplify.AC coupling makes DC signal component be dropped, and only has AC signal to be sent to next stage.Because toy is through probe, an inherently dynamic process, the charge polarization of pyroelectricity is also dynamic process, so for detecting useful signal inherently AC signal.The quiescent point of two stage amplifer can separate by AC coupling, separately arranges quiescent point, can carry out translation process easily to signal, also can prevent the accumulation of error of offset voltage from affecting the examination of final signal simultaneously.Sign-changing amplifier amplifies further to signal, and the amplitude of signal can reach hundreds of millivolt to number V scope, can drive the late-class circuit of comparer and so on completely.
As shown in Figure 4, signal analysis discriminator circuit is by two-way inspection width device, form with door and state timing latch, amplify the electric signal after amplifying shaping with shaping circuit through signal and first input two-way inspection width device, when the intensity of electric signal exceedes the setting voltage of two-way inspection width device, two-way inspection width device is by output low level pulse, described low level pulse through described synthesize with door after become a multipulse signal, and multipulse signal is inputted described state timing latch, state timing latch judges the pulse width of multipulse signal and the interpulse time interval, only retain the pulse signal meeting and meet setting width, the low level trigger pip of final stable output is to control module.Its detailed process is: the signal completed through amplifying shaping is input in two-way inspection width device; Two-way inspection width device can be differentiated the positive half cycle and negative half-cycle signal reaching setting voltage.Once signal amplitude has exceeded the voltage of setting, inspection width device has just exported a low level pulse.
Such design mainly considers except toy, also to there is cross-ventilation in specific environment, other disturbances such as electromagnetic interference (EMI), and pyroelectric sensor also can be caused to output signal.But the signal that these disturbing signals move generation relative to toy is all smaller, so two-way inspection width device can set suitable positive negative threshold value, filter out most disturbing signal, retain the output of useful signal.The low level pulse that two-way inspection width device exports is synthesized a multipulse signal by one with door, sends into state timing latch.State timing latch can judge the width of pulse and the interpulse time interval, discard processing is done for the wide narrow too fast Bradycardia excessively punching obviously not meeting the toy characteristics of motion, only retain the pulse of one fixed width, and the low level trigger pip of final stable output.Low level trigger pip sends into the MCU pin of control module, is caught by control module, judges, and drives camera (i.e. image acquisition units) to take pictures.
As shown in Figure 5, power supply unit is provided with power purification circuit, and power purification circuit is connected with power supply, for removing the ripple in power supply; Because of the circuit of explorer portion, require very high to power supply ripple.The power supply ripple of tens millivolts, will cause detrimental effects to detector and amplifying circuit.Therefore ensureing the Ripple Suppression work of power supply, is improve the element task that detector does the most important thing of sensitivity.
Power purification circuit the further filtering interfering of the power supply provided by external switch power supply, clutter are set, can provide the galvanic current source of high-quality to explorer portion.
Preferably, probe is provided with mandate interface, and detection main frame by authorizing the configuration information exchange of Interface realization and probe, and arranges identity ID to each probe.Communication is realized by WiFi, bluetooth or ZigBee between detection main frame and several probes.Or, realize communication by data line between detection main frame and several probes, and when being connected with detection main frame by data line when popping one's head in, detection main frame, by the identity ID of identification probe, only when successfully identifying, just communicates between detection main frame and probe.The detection main frame of the application can adopt conventional industrial computer or notebook computer etc.
Described just in order to the utility model is described above, be construed as the utility model and be not limited to above embodiment, meet the various variants of the utility model thought all within protection domain of the present utility model.
Claims (7)
1. a mouse mark detection instrument probe, it is characterized in that, described probe comprises image acquisition units, sensing unit, control module and power supply unit; When mouse is through the search coverage of probe, the infrared radiation that mouse sends triggers described sensing unit, sensing unit will produce electric signal, and described electric signal is sent to described control module, control module sends steering order to described image acquisition units according to the electric signal that it receives, and is gathered by the movement locus of image acquisition units to mouse; Described power supply is used for for probe provides work institute energy requirement.
2. detection instrument according to claim 1, it is characterized in that, described sensing unit comprises sensor and signal amplifies and shaping circuit, and described sensor is pyroelectric sensor, and the electric signal that sensor sends is sent to described control module after described signal amplifies and shaping circuit amplifies shaping.
3. detection instrument according to claim 2, it is characterized in that, described sensing unit also comprises signal analysis discriminator circuit, the electric signal that sensor sends is sent to described signal analysis discriminator circuit after described signal amplifies and shaping circuit amplifies shaping, and electric signal is sent to described control module after the analysis of signal analysis discriminator circuit is screened.
4. detection instrument according to claim 2, it is characterized in that, described signal amplifies and shaping circuit is made up of in-phase amplifier, filter capacitor and inverting amplifier, first the electric signal that described sensor sends amplifies through described in-phase amplifier, then remove DC component through described filter capacitor, amplify process further finally by described inverting amplifier.
5. detection instrument according to claim 3, it is characterized in that, described signal analysis discriminator circuit is by two-way inspection width device, form with door and state timing latch, amplify the electric signal after amplifying shaping with shaping circuit through described signal and first input described two-way inspection width device, when the intensity of electric signal exceedes the setting voltage of two-way inspection width device, two-way inspection width device is by output low level pulse, described low level pulse through described synthesize with door after become a multipulse signal, and described multipulse signal is inputted described state timing latch, state timing latch judges the pulse width of multipulse signal and the interpulse time interval, only retain the pulse signal meeting and meet setting width, the low level trigger pip of final stable output is to described control module.
6. detection instrument according to claim 1, is characterized in that, described power supply unit is provided with power purification circuit, and described power purification circuit is connected with power supply, for removing the ripple in power supply.
7. detection instrument according to claim 1, is characterized in that, described probe is provided with mandate interface, and detection main frame by the configuration information exchange of described mandate Interface realization and probe, and arranges identity ID to each probe.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520556942.8U CN204945406U (en) | 2015-07-29 | 2015-07-29 | A kind of mouse mark detection instrument probe |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520556942.8U CN204945406U (en) | 2015-07-29 | 2015-07-29 | A kind of mouse mark detection instrument probe |
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| CN204945406U true CN204945406U (en) | 2016-01-06 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105116465A (en) * | 2015-07-29 | 2015-12-02 | 北京华怡净化科技研究所有限公司 | Probe for mouse trace detector |
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2015
- 2015-07-29 CN CN201520556942.8U patent/CN204945406U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105116465A (en) * | 2015-07-29 | 2015-12-02 | 北京华怡净化科技研究所有限公司 | Probe for mouse trace detector |
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Granted publication date: 20160106 Termination date: 20190729 |