CN205693793U - Visitor's flow identification system - Google Patents
Visitor's flow identification system Download PDFInfo
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- CN205693793U CN205693793U CN201620478484.5U CN201620478484U CN205693793U CN 205693793 U CN205693793 U CN 205693793U CN 201620478484 U CN201620478484 U CN 201620478484U CN 205693793 U CN205693793 U CN 205693793U
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- resistance
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- flow identification
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Abstract
The utility model discloses a kind of visitor's flow identification system, aim to provide one and there is light compensation, adapt to the objective flow identification system of light change, solve the problem that video image acquisition is affected by light, its drip irrigation device is that on-the-spot photographic head is configured with light supply module, light supply module includes, light illumination is converted to the photosensitive unit of analogue signal, the reference cell of reference signal is provided, receive analogue signal and reference signal and carry out the comparison process comparator with outputs level signals, incoming level signal the controlled switch element opening/close switch contact, in order to connect the 3rd power supply and by switch contact energising or the compensating lamp of power-off, reach the effect of automatic compensation light.
Description
Technical field
This utility model relates to visitor's flow identification system.
Background technology
Open (bulletin) number is that the Chinese patent of CN202948492U discloses a kind of intelligent monitoring close quarters artificial abortion system
Counter device, has sensing and the statistics utilizing ultrasonic detector or photodetector to carry out personnel, but exists in prior art
The problem of poor anti jamming capability, causes statistical accuracy to reduce, thus practicality is poor.Intelligent monitoring close quarters artificial abortion unites
The composition of counter device includes: high-speed camera, and described high-speed camera is connected with image identification system, described image recognition
System is connected with demographic's enumerator, and described demographic's enumerator is connected with memorizer, described memorizer and calculating
Machine connects.This product is added up for artificial abortion.
For visitor flow identification system, Application comparison generally Infrared Detection Method, laser detection method in existing technology, but
It is that this technology is affected relatively greatly by light, thus easily has influence on the accuracy of detection.The adaptability that the light of environment is changed,
Need system is proposed higher requirement.
Utility model content
The deficiency existed for prior art, the purpose of this utility model is to provide has light compensation, adapts to light and becomes
The objective flow identification system changed.
Above-mentioned technical purpose of the present utility model has the technical scheme that a kind of passenger flow identification system
System, the rear end identification terminal and the rear end identification terminal that are connected by video cables with on-the-spot photographic head including on-the-spot photographic head are led to
Crossing the data server that LAN connects, described on-the-spot photographic head is configured with light supply module, described light supply module bag
Include, light illumination is converted to the photosensitive unit of analogue signal, it is provided that the reference cell of reference signal, receive analogue signal and base
Calibration signal also carries out the comparison process comparator with outputs level signals, and incoming level signal also controlled opens/close switch contact
Switch element, in order to connect the 3rd power supply and by switch contact energising or the compensating lamp of power-off.
By such scheme, carried out the collection of image scene by on-the-spot photographic head, then by video cables number
According to transmission, owing to on-the-spot camera collection image is affected by light factor, so light supply module can be it carries out lamp
The compensation of illuminance, first, carries out the detection of light by photosensitive unit, by the power of analogue signal Real-time Feedback light,
Now, being compared with reference signal by comparator, the function of comparator is more known, thus can with outputs level signals with
Control switch element and make the action of switch contact, it is achieved compensating lamp during connecting the 3rd power supply when switch contact closes is
It is illuminated, to compensate the deficiency of light, thus improves the readability of video acquisition.
As concrete scheme of the present utility model can be: the outfan of described comparator and the input of switch element it
Between be also associated with key switch.
By such scheme, can be transmitted with the signal between roof-cut resistence unit and comparator by key switch, thus
Manually opened, this function of manual-lock can be realized, meet the demand of dissimilar working environment.
As concrete scheme of the present utility model can be: described light supply module also includes that rpyroelectric infrared senses
Device, AND gate logic circuit；
The outfan of described pyroelectric infrared sensor and the outfan of comparator connect AND gate logic circuit respectively
Input, the input of the outfan connecting valve unit of AND gate logic circuit.
By such scheme, can detect or sense human body by pyroelectric infrared sensor, coordinate light detection, in conjunction with
Logic circuit, its logic function realized is: when light is less than lower limit, and in the presence of having artificial abortion, the high electricity of comparator output
Flat and pyroelectric infrared sensor exports high level, now AND gate logic circuit output high level, opens such that it is able to drive
Close unit and carry out action, it is achieved illumination, the effect setting up this function is to reduce the loss of power supply, is not having the feelings of artificial abortion
Under condition, even if insufficient light, also will not carry out light supply, thus reach more energy-conservation effect.
As concrete scheme of the present utility model can be: described photosensitive unit includes the first resistance and photoconductive resistance, institute
Stating one end of the first resistance in order to connect the first power supply, the other end of the first resistance connects photoconductive resistance one end, photoconductive resistance
Other end ground connection, the node between the first resistance and photoconductive resistance is in order to export analogue signal.
By such scheme, owing to the circuit structure of this photosensitive unit is simple, therefore it is easy to manufacture, simplifies processing
Step.
As concrete scheme of the present utility model can be: described reference cell includes the 3rd resistance and Zener diode,
One end of described 3rd resistance is in order to connect the first power supply, and the other end of the 3rd resistance connects the negative electrode of Zener diode, voltage stabilizing
The plus earth of diode, the cathode terminal of Zener diode is in order to output reference signal.
By such scheme, owing to the circuit structure of this reference cell is simple, therefore it is easy to manufacture, simplifies processing
Step, and realize voltage stabilizing by Zener diode, reference signal is more stable.
As concrete scheme of the present utility model can be: described switch element includes photoelectrical coupler, relay, described
The anode of photoelectrical coupler is signal input part, the negative electrode of photoelectrical coupler and the equal ground connection of emitter stage, the current collection of photoelectrical coupler
Pole connect relay coil one end, the coil other end of relay in order to connect second source, the switch contact string of relay
It is coupled to the current supply circuit of compensating lamp.
By such scheme, it is driven the coil of relay by photoelectrical coupler, driving force can be improved, and
Avoid electric effect between the first power supply and second source, owing to driving force improves, so stability is more preferable.
As concrete scheme of the present utility model can be: outfan series connection one the 4th resistance of described comparator.
By such scheme, by setting up the 4th resistance, the effect of current limliting can be played, it is to avoid directly output electric current mistake
Greatly.
As concrete scheme of the present utility model can be: in-phase input end series connection one second resistance of described comparator.
By such scheme, by setting up the second resistance, the effect of current limliting can be played, it is to avoid directly output electric current mistake
Greatly.
As concrete scheme of the present utility model can be: connecting on the coil of described relay has first in order to afterflow
Diode.
By such scheme, can be offer afterflow between relay coil current switching, thus improve relay line
The service life of circle.
As concrete scheme of the present utility model can be: the voltage of described second source is 12V, the voltage of tertiary voltage
For 220V.
By such scheme, this power supply is all the supply voltage grade of standard, meets national standard, more safety standard,
It is easy to safeguard and use.
In sum, this utility model has the advantages that have light compensation, adapts to light change, can be with hands
Automatically switch, several functions pattern unrestricted choice, and energy-conserving and environment-protective.
Accompanying drawing explanation
Fig. 1 is the system block diagram of embodiment 1；
Fig. 2 is the light supply module circuit diagram of embodiment 1；
Fig. 3 is the light supply module circuit diagram of embodiment 2；
Fig. 4 is the light supply module circuit diagram of embodiment 3；
Fig. 5 is the light supply module circuit diagram of embodiment 4.
In figure 1, on-the-spot photographic head；2, rear end identification terminal；3, data server；4, light supply module；41, photosensitive list
Unit；42, reference cell；43, comparator；44, switch element；45, key switch；46, pyroelectric infrared sensor；47, "AND"
Gate logic；48, photoelectrical coupler；49, compensating lamp；R3, the 3rd resistance；DZ, Zener diode；KM1, relay；R1,
One resistance；RG, photoconductive resistance；R4, the 4th resistance；R2, the second resistance；D1, the first diode.
Detailed description of the invention
Below in conjunction with accompanying drawing, this utility model is described in further detail.
Embodiment 1: as it is shown in figure 1, a kind of visitor's flow identification system, pass through with on-the-spot photographic head 1 including on-the-spot photographic head 1
The data server 3 that the rear end identification terminal 2 that video cables connects is connected by LAN with rear end identification terminal 2, scene is taken the photograph
As 1 mainly carries out the collection of view data and transmits.
As in figure 2 it is shown, on-the-spot photographic head 1 is configured with light supply module 4, light supply module 4 includes, by light illumination
Being converted to the photosensitive unit 41 of analogue signal, it is provided that the reference cell 42 of reference signal, reception analogue signal and reference signal are also
Compare and process the comparator 43 with outputs level signals, incoming level signal the controlled switch list opening/close switch contact
Unit 44, in order to connect the 3rd power supply and by switch contact energising or the compensating lamp 49 of power-off.
The concrete annexation of each several part circuit is as follows:
Photosensitive unit 41 includes the first resistance R1 and photoconductive resistance RG, and one end of the first resistance R1 is in order to connect the first electricity
Source, the other end of the first resistance R1 connects photoconductive resistance RG one end, the other end ground connection of photoconductive resistance RG, the first resistance R1 and light
Node between quick resistance RG is in order to export analogue signal.The voltage of the first power supply can be 5V.
Reference cell 42 includes the 3rd resistance R3 and Zener diode DZ, and one end of the 3rd resistance R3 is in order to connect the first electricity
Source, the other end of the 3rd resistance R3 connects the negative electrode of Zener diode DZ, the plus earth of Zener diode DZ, Zener diode
The cathode terminal of DZ is in order to output reference signal.
Switch element 44 includes that photoelectrical coupler 48, relay K M1, the anode of photoelectrical coupler 48 are signal input part,
The negative electrode of photoelectrical coupler 48 and the equal ground connection of emitter stage, coil one end of the collector connection relay KM1 of photoelectrical coupler 48,
The coil other end of relay K M1 is in order to connect second source, and the switch contact of relay K M1 is series at the power supply of compensating lamp 49
Loop.
Outfan series connection one the 4th resistance R4 of comparator 43.In-phase input end series connection one second resistance of comparator 43
R2.By setting up the 4th resistance R4, the second resistance R2, the effect of current limliting can be played, it is to avoid directly output electric current is excessive.Photosensitive
The analogue signal of unit 41 output inputs to the in-phase input end of comparator 43, and the inverting input of comparator 43 receives benchmark
Signal.
Principle analysis to foregoing circuit is as follows: carried out collection and the seizure of image scene by on-the-spot photographic head 1, then
Carried out the transmission of data by video cables, affected by light factor owing to on-the-spot photographic head 1 gathers image, so light supply
Module 4 can be that it carries out the compensation of lamp illuminance, first, is carried out the detection of light by photosensitive unit 41, is believed by simulation
The power of number Real-time Feedback light, now, is compared with reference signal by comparator 43, and the function of comparator 43 is the most public
Know, thus can make the action of switch contact with outputs level signals to control switch element 44, it is achieved compensating lamp 49 connects the
It is by illumination when switch contact Guan Bi during three power supplys, to compensate the deficiency of light, thus improves the clear of video acquisition
Clear degree, meets with high-precision data handling requirements.
Such as: ambient light is dark, now photoconductive resistance RG resistance becomes big, the analogue signal of photosensitive unit 41 outfan
Voltage becomes big, and when its magnitude of voltage is more than value Vref1 of reference voltage, comparator 43 exports high level, so that light thermocouple
Clutch 48 triggers, and relay K M1 obtains electric, and compensating lamp 49 electricity is bright；Otherwise, compensating lamp 49 extinguishes.
Embodiment 2: as it is shown on figure 3, be with the difference of embodiment 1, the outfan of comparator 43 and switch element 44
Key switch 45 it is also associated with between input.Light supply module 4 also includes pyroelectric infrared sensor 46, AND gate logic
Circuit 47；The outfan of pyroelectric infrared sensor 46 and the outfan of comparator 43 connect AND gate logic circuit 47 respectively
Input, the input of the outfan connecting valve unit 44 of AND gate logic circuit 47.Driven by photoelectrical coupler 48
The coil of motor type relay KM1, can improve driving force, and avoid electric effect between the first power supply and second source,
Owing to driving force improves, so stability is more preferable.The voltage of second source is 12V, and the voltage of tertiary voltage is 220V.This electricity
Source is all the supply voltage grade of standard, meets national standard, more safety standard, it is simple to safeguards and uses.
It should be understood that pyroelectric infrared sensor 46 includes housing, optical filter, field effect transistor Q11 and pyroelectricity
Element；Housing is provided with through hole, and optical filter is connected in through hole；It is red that field effect transistor Q11 and pyroelectricity element are positioned at pyroelectricity
The enclosure interior of outer sensor 46；Pyroelectricity element is coupled between the grid of field effect transistor Q11 and ground end.Pass through optical filter
Sensing external heat radiation.The Main Function of optical filter is that (it is red that human body sends a permission wavelength infrared ray about 10 μm
Outside line wavelength) pass through, and light, sunlight and other radiation are filtered, with the interference that suppression is extraneous.Infrared induction source generally by
Two pyroelectricity element in series or in parallel compositions, the electrode of the two pyroelectricity element is contrary, and ambient background radiation is to two
Individual pyroelectricity element almost has identical effect so that it is the pyroelectric effect of generation is cancelled out each other, and output signal is close to zero.
In once having people's intrusion detection region, human infrared radiation is focused on by partial mirror, and is received by pyroelectricity element, due to angle
Degree difference, the heat that two panels pyroelectricity element receives is different, and pyroelectricity energy is the most different, it is impossible to be completely counterbalanced by, treated electricity
Road exports control signal after processing.Pyroelectric effect is similar to piezoelectric effect, refers to cause crystal table due to the change of temperature
The phenomenon of surface charge.Pyroelectric infrared sensor 46 is made up of ceramic oxide or piezolectric crystal unit, on two surfaces of element
Making electrode, when in the range of Sensor monitoring, temperature has the change of △ T, pyroelectric effect can produce electric charge on two electrodes
△ Q, produces a faint voltage △ V the most between electrodes.Owing to its output impedance is high, there is a field in the sensor
Effect pipe Q1 carries out impedance transformation.Produced by pyroelectric effect, electric charge △ Q can be combined by the ion in air and disappear, i.e.
When ambient temperature-stable is constant, △ T=O, sensor is without output.Human body or the bigger animal of volume have constant body temperature,
General at 37 degree, so the infrared ray about specific wavelength 10 μm can be sent, when human body enters detection zone, because of human body temperature and ring
Border temperature has difference, and the infrared ray about 10 μm of human-body emitting gathers infrared sense after being strengthened by Fresnel lens optical filter
On Ying Yuan (pyroelectricity element), infrared induction source will lose charge balance when receiving human infrared radiation, outwards discharges
Electric charge, and then produce △ T and △ T circuit to the periphery is exported, subsequent conditioning circuit just can produce biological personnel's inspection after processing after testing
Survey signal.
Foregoing circuit function is described below: can be with between roof-cut resistence unit 44 and comparator 43 by key switch 45
Signal transmission, such that it is able to realize manually opened, this function of manual-lock, meet the demand of dissimilar working environment.Logical
Cross such scheme, can detect or sense human body by pyroelectric infrared sensor 46, coordinate light detection, in conjunction with logic electricity
Road, its logic function realized is: when light is less than lower limit, and in the presence of having artificial abortion, comparator 43 exports high level also
And pyroelectric infrared sensor 46 exports high level, now AND gate logic circuit 47 exports high level, opens such that it is able to drive
Close unit 44 and carry out action, it is achieved illumination, the effect setting up this function is to reduce the loss of power supply, is not having artificial abortion's
In the case of, even if insufficient light, also will not carry out light supply, thus reach more energy-conservation effect.
Embodiment 3: as shown in Figure 4, the difference with embodiment 2 is: photosensitive unit 41 includes the first resistance R1 and photosensitive
Resistance RG, one end of photoconductive resistance RG is in order to connect the first power supply, and the other end of photoconductive resistance RG connects first resistance R1 one end,
The other end ground connection of the first resistance R1, the node between the first resistance R1 and photoconductive resistance RG is in order to export analogue signal.First
The voltage of power supply can be 5V.The reverse input end of comparator 43 is analogue signal receiving terminal, and the in-phase end of comparator 43 is base
Calibration signal input.
According to the circuit structure of the present embodiment, when extraneous light is dark, photoconductive resistance RG resistance becomes big, the simulation of output
Signal voltage is the lowest, and same comparator 43 is by comparing, and when analogue signal is less than the voltage of reference signal, comparator 43 is defeated
Go out high level, equally drive photoelectrical coupler 48, so that relay K M1 obtains electric, so that compensating lamp 49 is lighted.
Embodiment 4: as it is shown in figure 5, be with the difference of embodiment 3, the coil of relay K M1 connects and has in order to afterflow
The first diode D1.Can be offer afterflow between relay K M1 coil current break-make, thus improve relay K M1 line
The service life of circle.
This specific embodiment is only that it is not to restriction of the present utility model, ability to explanation of the present utility model
The present embodiment can be made after reading this specification by field technique personnel as required does not has the amendment of creative contribution, but
As long as all being protected by Patent Law in right of the present utility model.
Claims (10)
1. an objective flow identification system, after being connected by video cables with on-the-spot photographic head (1) including on-the-spot photographic head (1)
The data server (3) that end identification terminal (2) is connected by LAN with rear end identification terminal (2), it is characterised in that: described
On-the-spot photographic head (1) is configured with light supply module (4), and described light supply module (4) includes, light illumination is converted to mould
Intend the photosensitive unit (41) of signal, it is provided that the reference cell (42) of reference signal, receive analogue signal and reference signal and carry out
Comparison process is with the comparator (43) of outputs level signals, incoming level signal the controlled switch element opening/close switch contact
(44), in order to connect the 3rd power supply and by switch contact energising or the compensating lamp (49) of power-off.
Visitor's flow identification system the most according to claim 1, it is characterised in that: the outfan of described comparator (43) and switch
Key switch (45) it is also associated with between the input of unit (44).
Visitor's flow identification system the most according to claim 2, it is characterised in that: described light supply module (4) also includes heat
Release electricity infrared sensor (46), AND gate logic circuit (47)；
The outfan of described pyroelectric infrared sensor (46) and the outfan of comparator (43) connect AND gate logic electricity respectively
The input on road (47), the input of outfan connecting valve unit (44) of AND gate logic circuit (47).
Visitor's flow identification system the most according to claim 1, it is characterised in that: described photosensitive unit (41) includes the first resistance
And photoconductive resistance (RG) (R1), one end of described first resistance (R1) in order to connect the first power supply, another of the first resistance (R1)
End connects photoconductive resistance (RG) one end, the other end ground connection of photoconductive resistance (RG), the first resistance (R1) and photoconductive resistance (RG) it
Between node in order to export analogue signal.
Visitor's flow identification system the most according to claim 4, it is characterised in that: described reference cell (42) includes the 3rd resistance
And Zener diode (DZ) (R3), one end of described 3rd resistance (R3) in order to connect the first power supply, the 3rd resistance (R3) another
One end connects the negative electrode of Zener diode (DZ), the plus earth of Zener diode (DZ), the cathode terminal of Zener diode (DZ)
In order to output reference signal.
Visitor's flow identification system the most according to claim 1, it is characterised in that: described switch element (44) includes photoelectric coupling
Device (48), relay (KM1), the anode of described photoelectrical coupler (48) is signal input part, the negative electrode of photoelectrical coupler (48)
Ground connection equal with emitter stage, coil one end of the collector connection relay (KM1) of photoelectrical coupler (48), relay (KM1)
The coil other end is in order to connect second source, and the switch contact of relay (KM1) is series at the current supply circuit of compensating lamp (49).
Visitor's flow identification system the most according to claim 1, it is characterised in that: the outfan series connection one of described comparator (43)
4th resistance (R4).
Visitor's flow identification system the most according to claim 1, it is characterised in that: the in-phase input end string of described comparator (43)
Join one second resistance (R2).
Visitor's flow identification system the most according to claim 6, it is characterised in that: connect on the coil of described relay (KM1)
There is the first diode (D1) in order to afterflow.
Visitor's flow identification system the most according to claim 9, it is characterised in that: the voltage of described second source is 12V, the
The voltage of three voltages is 220V.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620478484.5U CN205693793U (en) | 2016-05-24 | 2016-05-24 | Visitor's flow identification system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620478484.5U CN205693793U (en) | 2016-05-24 | 2016-05-24 | Visitor's flow identification system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205693793U true CN205693793U (en) | 2016-11-16 |
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ID=57262180
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620478484.5U Active CN205693793U (en) | 2016-05-24 | 2016-05-24 | Visitor's flow identification system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205693793U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106886761A (en) * | 2017-01-25 | 2017-06-23 | 安徽达尔智能控制***股份有限公司 | Driving license test Verification System |
-
2016
- 2016-05-24 CN CN201620478484.5U patent/CN205693793U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106886761A (en) * | 2017-01-25 | 2017-06-23 | 安徽达尔智能控制***股份有限公司 | Driving license test Verification System |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 215000 south side of Ganquan Road, Wujiang Economic and Technological Development Zone, Suzhou City, Jiangsu Province Patentee after: Yileidun Construction Group Co.,Ltd. Address before: 215200 south side of Ganquan Road, Wujiang Economic and Technological Development Zone, Suzhou City, Jiangsu Province Patentee before: JIANGSU ELEIDEN SMARTECH CO.,LTD. |
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| CP03 | Change of name, title or address |