CN209118309U - A kind of self-induction equipment of passport typing - Google Patents
A kind of self-induction equipment of passport typing Download PDFInfo
- Publication number
- CN209118309U CN209118309U CN201821699861.3U CN201821699861U CN209118309U CN 209118309 U CN209118309 U CN 209118309U CN 201821699861 U CN201821699861 U CN 201821699861U CN 209118309 U CN209118309 U CN 209118309U
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- Prior art keywords
- infrared
- passport
- lower cover
- pedestal
- diode
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Abstract
The utility model relates to a kind of self-induction equipment of passport typing, it is made of apparatus body and sensor circuit plate, the apparatus body includes top cover, top lower cover, column, pedestal, the sensor circuit plate includes infrared-emitting diode, infrared receiving diode, signal processing single chip, PWM drive circuit, signal amplification circuit, the sensor circuit plate is fixedly mounted between top cover and top lower cover, the pedestal is connect by column with top lower cover, the top lower cover corresponds to infrared-emitting diode and the position of infrared receiving diode is respectively equipped with cylinder sleeve, infrared-emitting diode and infrared receiving diode are set in cylinder sleeve.By the intervention of automatic sensing passport, realization is taken pictures and resolving；Using double-barrel structure, the shielding and gather effect of infrared light are realized；Meanwhile diffusing reflection beam is devised on chassis, greatly reduce the infrared luminous intensity that pedestal is reflected back infrared receiving diode.
Description
Technical field
The utility model relates to passport induction technology field more particularly to a kind of self-induction equipment of passport typing.
Background technique
Automatic passport recording device can body by image technology and optical character recognition technology, on automatic input passport
Part information.
The domestic scheme for realizing this functions of the equipments is to acquire passport image by optical scanning system, then pass through character at present
Recognizer completes typing work, the defect being primarily present are as follows:
Structure is complicated for optical scanning system, and cost is very high；
Optical scanning system uses row sample mode, and the one width passport information time of acquisition is long, generally requires 20s or more；
Operator needs that passport is put into scanner manually, then starts scanner program, complicated for operation.
Utility model content
The purpose of this utility model is to provide a kind of self-induction equipment of passport typing, actively incude the intervention of passport,
By array imaging sensor remote capture passport image, realization is taken pictures and character recognition.
To achieve the above object, the technical solution of the utility model is as follows:
A kind of self-induction equipment of passport typing, is made of apparatus body and sensor circuit plate, the sensor circuit plate packet
Infrared-emitting diode, infrared receiving diode, signal processing single chip, PWM drive circuit, signal amplification circuit are included, it is described
PWM drive circuit and signal amplification circuit are connect with signal processing single chip respectively, and the infrared-emitting diode connection PWM drives
Dynamic circuit, the infrared receiving diode connection signal amplifying circuit, the apparatus body include top cover, top lower cover,
Column, pedestal, the top cover are fixedly connected with top lower cover, and sensor circuit plate is mounted on top cover and top lower cover shape
At cavity in, the pedestal is connect by column with top lower cover, and the top lower cover corresponds to infrared-emitting diode and red
The position of outer reception diode is respectively equipped with cylinder sleeve, and infrared-emitting diode and infrared receiving diode are set in column
In body sleeve.
In above scheme, the pedestal includes base upper cover and pedestal lower cover, the material of the base upper cover and pedestal lower cover
Matter is black ABS and surface frosted is handled, and diffusing reflection beam is covered under pedestal.
It further include narrow band digital filter in above scheme, the narrow band digital filter connection signal processing single chip,
For handling the received voltage signal of signal processing single chip.
In above scheme, the base upper cover is equipped with passport card slot, for placing passport.
In above scheme, the infrared receiving diode is infrared photodiode.
The self-induction equipment of the passport typing of the utility model, is designed by automatic sensing, and passport recording device is certainly dynamic
The intervention of passport is answered, realizes the resolving taken pictures with character recognition；Using double-barrel structure, infrared-emitting diode and red is blocked
The shielding and gather effect of infrared light are realized in interference between outer reception diode；Meanwhile diffusing reflection is devised on chassis
Beam greatly reduces the infrared luminous intensity that pedestal is reflected back infrared receiving diode.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the self-induction equipment of passport typing in an embodiment of the present invention；
Fig. 2 is the structural block diagram of sensor circuit plate in an embodiment of the present invention；
In figure: 1, top cover, 2, top lower cover, 3, column, 4, base upper cover, 5 pedestal lower covers, 6, sensor circuit plate,
601, infrared-emitting diode, 602, infrared receiving diode.
Specific embodiment
With reference to the accompanying drawings and examples, specific embodiment of the present utility model is described in further detail.Below
Embodiment is not intended to limit the scope of the present invention for illustrating the utility model.
As shown in Figure 1, a kind of self-induction equipment of passport typing of the utility model, by apparatus body and sensor circuit plate
Composition, wherein sensor circuit plate 6 include infrared-emitting diode 601, infrared receiving diode 602, signal processing single chip,
PWM drive circuit, signal amplification circuit, PWM drive circuit and signal amplification circuit are connect with signal processing single chip respectively, red
Outer emitting diode connects PWM drive circuit, infrared receiving diode connection signal amplifying circuit.Apparatus body includes on top
Lid 1, top lower cover 2, column 3, pedestal, top cover 1 are fixedly connected with top lower cover 2, and sensor circuit plate 6 is installed on the top
In the cavity that lid 1 and top lower cover 2 are formed, the pedestal is connect by column 3 with top lower cover 2, and the correspondence of top lower cover 2 is infrared
The position of emitting diode 601 and infrared receiving diode 602 is respectively equipped with cylinder sleeve, infrared-emitting diode 601 and red
Outer reception diode 602 is set in cylinder sleeve.Pedestal includes base upper cover 4 and pedestal lower cover 5,4 He of base upper cover
The material of pedestal lower cover 5 is black ABS and surface frosted is handled, and pedestal lower cover 5 is equipped with diffusing reflection beam.
Infrared sensing is a kind of technology for being widely used in long-range contactless information transmitting, using a pair of infrared two pole
Pipe, including infrared-emitting diode 601 and infrared receiving diode 602, wherein 601 launch wavelength of infrared-emitting diode is
The 940nm infrared ray of light receiving semiconductor is injected in the intensity controlled infrared ray of 940nm, the induction of infrared receiving diode 602, and by light
It is converted into electric signal by force.Infrared-emitting diode 601 and 602 operating power of infrared receiving diode are substantially mW rank, full
Sufficient low-power consumption requirement, the continuous work service life is more than 5 years, and infrared human body is invisible, will not make a sound, this is practical
Novel infrared receiving diode 602 uses infrared photodiode.
The position of double-barrel structure, infrared-emitting diode 601 and infrared receiving diode 602 is respectively equipped with cylinder sleeve,
The interference between infrared-emitting diode 601 and infrared receiving diode 602 is blocked, and the poly- of infrared emission light may be implemented
Hold together effect, also shields interference of the infrared light to infrared receiving diode 602 in addition to passport direction.
PWM drive circuit drives infrared-emitting diode 601, while having used narrow-band digital when receiving end handles signal
Filter, in this way, infrared emittance is exactly the signal of fixed waveform, so as to avoid the interference of extraneous infrared light supply.
In application, passport can be placed on above the pedestal of equipment, and sensing device needs to distinguish the reflection of plant bottom case
Light and passport read the reflected light of page.Using black ABS material as pedestal materials, surface has carried out frosted processing, meanwhile,
Diffusing reflection beam is devised on lid under pedestal, greatly reduces the intensity that pedestal is reflected back reception diode.
In the equipment course of work, signal processing single chip persistently exports the particular frequencies 2kHz pwm signal of CMOS level,
The signal is converted into power current signal after PWM drive circuit, and infrared-emitting diode 601 is driven to dodge with the frequency of 2kHz
It is bright.In general, the infrared light issued can largely be absorbed by the frosted processing of pedestal and diffusing reflection beam, when there is passport to intervene sensor circuit
When between plate and pedestal, passport can largely reflect infrared light, at this point, being reflected back the infrared light of sensor circuit plate 6 by infrared receiver
Diode 602 is converted into voltage signal, and after signal amplification circuit amplifies, and signal processing single chip processing is sent to, by this
It is filtered after signal sampling by digital band pass, retains the useful signal of 2kHz, and judge whether there is according to the change curve of signal
Passport intervention.When being determined with passport and being put into, signal processing single chip generates trigger signal, is adopted by electrical connection control image
Collect processing unit work.
Above embodiments are only to illustrate the technical idea of the utility model, and the protection model of the utility model cannot be limited with this
Enclose, it is all according to the utility model proposes technical idea, be made any change, each falls within this reality on the basis of technical solutions
With in novel protected range.
Claims (5)
1. a kind of self-induction equipment of passport typing, is made of, it is characterised in that: the induction apparatus body and sensor circuit plate
Circuit board (6) including infrared-emitting diode (601), infrared receiving diode (602), signal processing single chip, PWM driving
Circuit, signal amplification circuit, the PWM drive circuit and signal amplification circuit are connect with signal processing single chip respectively, described
Infrared-emitting diode (601) connects PWM drive circuit, infrared receiving diode (602) the connection signal amplifying circuit, institute
Stating apparatus body includes top cover (1), top lower cover (2), column (3), pedestal, the top cover (1) and top lower cover
(2) it is fixedly connected, in the cavity that sensor circuit plate (6) is mounted on top cover (1) and top lower cover (2) is formed, the pedestal
It is connect by column (3) with top lower cover (2), the top lower cover (2) corresponding infrared-emitting diode (601) and infrared receiver
The position of diode (602) is respectively equipped with cylinder sleeve, infrared-emitting diode (601) and infrared receiving diode (602) point
It is not sleeved in cylinder sleeve.
2. the self-induction equipment of passport typing according to claim 1, spy is being: the pedestal includes base upper cover
(4) and pedestal lower cover (5), the material of the base upper cover (4) and pedestal lower cover (5) is black ABS and surface frosted is handled, and
Pedestal lower cover (5) is equipped with diffusing reflection beam.
3. the self-induction equipment of passport typing according to claim 1, spy is being: further including narrowband digital filtering
Device, the narrow band digital filter connection signal processing single chip, for handling the received voltage signal of signal processing single chip.
4. the self-induction equipment of passport typing according to claim 3, spy is being: the position position of the cylinder sleeve
In the top of base upper cover (4), the base upper cover (4) is equipped with passport card slot, for placing passport.
5. the self-induction equipment of passport typing according to claim 1, spy is being: the infrared receiving diode
It (602) is infrared photodiode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821699861.3U CN209118309U (en) | 2018-10-19 | 2018-10-19 | A kind of self-induction equipment of passport typing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821699861.3U CN209118309U (en) | 2018-10-19 | 2018-10-19 | A kind of self-induction equipment of passport typing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209118309U true CN209118309U (en) | 2019-07-16 |
Family
ID=67201553
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821699861.3U Active CN209118309U (en) | 2018-10-19 | 2018-10-19 | A kind of self-induction equipment of passport typing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209118309U (en) |
-
2018
- 2018-10-19 CN CN201821699861.3U patent/CN209118309U/en active Active
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