CN201616105U - Image and bar-code recognizing module and application device thereof - Google Patents
Image and bar-code recognizing module and application device thereof Download PDFInfo
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- CN201616105U CN201616105U CN2009202978600U CN200920297860U CN201616105U CN 201616105 U CN201616105 U CN 201616105U CN 2009202978600 U CN2009202978600 U CN 2009202978600U CN 200920297860 U CN200920297860 U CN 200920297860U CN 201616105 U CN201616105 U CN 201616105U
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- image
- bar code
- code reading
- lighting source
- reading module
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Abstract
The utility model provides an image and bar-code recognizing module and an application device thereof. The image and bar-code recognizing module comprise a camera that can collect image or bar-code, a lighting source for lighting image or bar-code, an image sensor for receiving image or bar-code collected by the camera and processing image or bar-code and converting image or bar-code into signals, a circuit board for installing the image sensor, and a light guide device. The light guide device is provided with a lens opening hole through which the lens passes and a plurality of lighting source through holes through which the lighting source passes, wherein at least the lighting source through hole is provided with an outward-expanding chamfer angle so as to prevent light scattering of the lighting source. The utility model further provides the application device with the image and bar-code recognizing module. Compared with the prior art, the benefits of the utility model are as follows: the light scattering of the lighting source is effectively prevented, and the to-be-scanned target area can be lightened to the utmost extent.
Description
Technical field
The utility model relates to a kind of image and bar code reading module and application apparatus thereof, particularly relates to a kind of image and bar code reading module and application apparatus thereof that is used for optical reading.
Background technology
Bar code scanner now generally is used in each goods sales field, supermarket, to be used for handling efficiently the commodity that item number or price are encoded with the bar coding mode.The principle of operation of relevant bar code scanner has been found in many prior aries, for example: No. 5,932,860, No. 179959 Taiwan patents of bulletin number, U.S. Pat.
In bar code scanner, bar code reading module is unusual important components.Usually, the ultimate principle of bar code scanner is to make light source irradiation after bar code, reflected light drops on the sensing element via light channel structure, (can reflect by the blank gap that arrives because the light that shines the black bar code can be absorbed between two adjacent bar codes with the incident light intensity for sensing element, like this along with the difference of light source irradiation position, then also variation thereupon of incident light intensity) converts different simulating signals to, be processed into digital signal output through analog/digital converter again, and this digital signal exports demoder to when converting bar code information to, promptly finishes bar code scan.And general light source uses and is broadly divided into two kinds of light emitting diode (LED) formula and laser types.In this bar code reading process, need the target area be illuminated with lighting source, image collecting device is gathered bar code or the image in the target area again.Usually in order to meet the miniaturization development trend, bar code reading module has smaller volume, reduces the quantity of lighting source or the brightness that improves lighting source possibly.Even if under the situation that the quantity and the brightness of lighting source are determined, how effectively to prevent the illumination light scattering, can illuminate the target area to greatest extent, also be to need improved present situation.
The utility model content
At the deficiencies in the prior art, the technical matters that the utility model solves provides a kind of image and bar code reading module, and it prevents that effectively the lighting source scattering is to illuminate target area to be scanned to greatest extent.
The utility model also provides a kind of application apparatus of using above-mentioned image and bar code reading module, and it prevents that effectively the lighting source scattering is to illuminate target area to be scanned to greatest extent.
For solving the problems of the technologies described above, the technical solution of the utility model is achieved in that
A kind of image and bar code reading module, but it comprises the camera lens of images acquired or bar code, the lighting source that illuminates image or bar code, image that receives the camera lens collection or bar code and handles imageing sensor, circuit board and the photoconduction leading-in device that is converted into signal.Described photoconduction leading-in device is provided with camera lens perforate of passing for camera lens and the some lighting source through holes that pass through for lighting source, and wherein the lighting source through hole offers the chamfering that expands outwardly to prevent the lighting source light scatter at least.
Further, described image and bar code reading module also comprise light source board, and it is positioned at photoconduction leading-in device rear portion, and wherein above-mentioned lighting source is mounted thereon and camera lens passes this light source board.
Described image and bar code reading module also comprise mounting bracket, and described light source board and photoconduction leading-in device all are assembled in this mounting bracket.
Described image and bar code module also have the aiming light source of focus image and bar code, and camera lens and aiming light source are mounted to lens bracket and the aiming light source bracket that all is positioned at mounting bracket respectively.
Described imageing sensor is assembled in the mounting bracket rear portion and electrically connects with circuit board, and described circuit board has data-interface the signal of imageing sensor conversion is sent to the external decoder circuit.
The technical solution of the utility model can also realize like this:
A kind of application apparatus with above-mentioned image and bar code reading module, it comprises a recognition window that is used for images acquired and bar code, be located at key control unit in described image and bar code reading and the feedback assembly, for described key control unit provides the power supply module of electric power, and the image and bar code reading module and the decoding circuit plate that are used to carry out image and bar code reading.But this image and bar code reading module comprise the camera lens of images acquired or bar code, the lighting source that illuminates image or bar code, image that receives the camera lens collection or bar code and handle imageing sensor, circuit board and the photoconduction leading-in device that is converted into signal.Described photoconduction leading-in device is provided with camera lens perforate of passing for camera lens and the some lighting source through holes that pass through for lighting source, and wherein the lighting source through hole offers the chamfering that expands outwardly to prevent the lighting source light scatter at least.
Further, described image and bar code reading module also comprise light source board, and it is positioned at photoconduction leading-in device rear portion, and wherein above-mentioned lighting source is mounted thereon and camera lens passes this light source board.
Described image and bar code reading module also comprise mounting bracket, and described light source board and photoconduction leading-in device all are assembled in this mounting bracket.
Described image and bar code reading module also comprise the aiming light source of focus image and bar code, and camera lens and aiming light source are mounted to lens bracket and the aiming light source bracket that all is positioned at mounting bracket respectively.
Described application apparatus also comprises Liquid Crystal Module, and it provides user's operation indicating and image or bar code Query Result to show.
Compared with prior art, the beneficial effects of the utility model are: effectively prevent the lighting source scattering, illuminate target area to be scanned to greatest extent.
Description of drawings
Fig. 1 is that expression is according to the image of the utility model preferred forms and the three-dimensional exploded view of bar code reading module;
Fig. 2 represents wherein to show the portions of electronics device on the mainboard according to the image of the utility model preferred forms and the part three-dimensional exploded view of bar code reading module;
Fig. 3 is that expression is according to the image of the utility model preferred forms and the forward sight three-dimensional combination figure of bar code reading module;
Fig. 4 is the cut-open view according to the line A-A direction of image shown in Fig. 3 and bar code reading module;
Fig. 5 is a three-dimensional view of using the application apparatus of the utility model image and bar code reading module;
Fig. 6 is the system principle diagram of the utility model application apparatus.
Embodiment
Now, will describe embodiment of the present utility model with reference to the accompanying drawings in detail.In these figure, represent same or analogous element with identical mark, even in different figure, describe them.
Please refer to Fig. 1 and Fig. 2, it shows the topology view according to the image of the utility model preferred forms and bar code reading module 100.This image and bar code reading module 100 comprise mounting bracket 1, camera lens 2, light source bracket 3, aiming light source 4, light source board 5, photoconduction leading-in device 6 and some screws 7.
Mounting bracket 1 is made for aluminium in the utility model preferred forms and is taken the shape of the letter U, and certainly, it can also be made by other materials.This mounting bracket 1 comprises pair of sidewalls 13 and connects the diapire 12 of this oppose side wall 13.Mainboard 11 is installed in the top of the sidewall 13 of mounting bracket 1 by screw (not label).Image sensor circuit plate 14 is installed in the rear portion of the sidewall 13 of mounting bracket 1 as backboard by screw 7.Therefore, mounting bracket 1, mainboard 11 and image sensor circuit plate 14 one common peripheral are set as spatial accommodation (not label), and lens bracket 15 is wholely set on the diapire 12 of mounting bracket 1 or is the relation of installation.Light source bracket 3, aiming light source 4 and camera lens 2 are accommodated in this spatial accommodation.Wherein camera lens 2 camera lens perforation 32 backs that are assembled to lens bracket 15 and pass light source bracket 3 align with the imageing sensors (not shown) that are arranged on the image sensor circuit plate 14, so that imageing sensor receive image or the bar code that camera lens 2 gathers and convert numeral to or simulating signal after be sent to mainboard 11, be sent to the decoding circuit decoding and finish the recognition process by being arranged on data-interface 110 on the mainboard 11 then.
Aiming light source 4 is accommodated in the cylindric receiving space 31 of light source bracket 3, and it is used for bar code to be distinguished or the image of focusing.In the application, it is green strip light source.
Light source board 5 is tabular, six lighting sources (being generally the LED lamp) is installed goes to upper and lower two row's settings, and its middle part offers lens through hole 52 and aiming light source through holes 53.
Photoconduction leading-in device 6 offers lens through hole 62, aiming light source through holes 63, four lighting source guiding perforate 61 and two lighting sources guiding perforates 61 that are positioned at aiming light source through holes 63 right sides that are positioned at lens through hole 62 left sides.Especially, each lighting source guiding perforate 61 has cylindrical channel 611 that extends certain distance formation from photoconduction leading-in device 6 rear surfaces forward and the chamfering 610 that is the hydraucone configuration and is communicated with photoconduction leading-in device 6 front surfaces.Cross this chamfering 610 all, the light-source angle of lighting source 51 emissions penetrates along chamfering 610, illuminates zone to be scanned to greatest extent.Aim at image or bar code in the light source 4 meeting aimings zone to be scanned then, pass to imageing sensor after gathering by camera lens 2 and handle.Photoconduction leading-in device 6 is mounted on the mounting bracket 1 by screw (not label).Certainly, in other embodiments, it can also adopt the buckle mode of trip and bayonet fittings to fit together.
See also Fig. 5 and Fig. 6, it shows the application principle figure of the application apparatus (being commonly referred to optical reader) 200 of using the utility model image and bar code scan module 100.This application apparatus 200 comprises shell of being made up of lid 8 and pedestal 9 and the electron device that is contained in enclosure.See also Fig. 6, it has showed the schematic diagram of the internal electronic device of application apparatus 200.
Further, the electron device of application apparatus 200 comprise the core cpu plate 101 that carries out core control, with described core cpu plate 101 electrically connect and can receive the product information of these core cpu plate 101 outputs Liquid Crystal Module 105, electrically connect and can be the POE module 106 that this core cpu plate 101 provides electric power removably with described core cpu plate 101, and another power module 107 and power interface 1071 that electrically connects described core cpu plate 101 and can be 101 power supplies of core cpu plate.Described core cpu plate 101 also electrically connects RFID module 103, GPRS wireless module 104 removably, with functional modules such as GPIO modules 102, and can with these functional module interactive communications, simultaneously, these functional modules all can be provided driving electric and be controlled its fill order by this core cpu plate 101.Described application apparatus 200 also comprises a debugging interface 109 that electrically connects with described core cpu plate 101, and the user can be by the described debugging interface 109 debugging described core cpu plates 101 of configuration and other functional modules that electrically connect described core cpu plate 101.
Wherein, described Liquid Crystal Module 105 is used to instruct the client to operate and shows Query Result; Described POE module 106 can be given described core cpu plate 101 power supplies by the physical network line; Described power interface 1071 can connect outside power supply adaptor, preferably, this power supply adaptor can be imported the electric power of 12V voltages to this power interface 1071, but the power conversions of described power module 107 these 12V voltages is described application apparatus 10 needed 5V and 3.3V voltage; Described this core cpu plate 101 also is electrically connected with an expansion hub, described expansion hub is used to further expand this core cpu plate 101 functions, in the utility model preferred forms, described expansion hub is a usb hub 108, its can further removably electrically connect can with the bluetooth module 1081 of external unit communication, mixed-media network modules mixed-media 1083, and be described bluetooth module 1081, mixed-media network modules mixed-media 1083 provides driving electric, described mixed-media network modules mixed-media 1083 can be the cable network module with RJ45 port, also can be wireless network module with WIFI function, in the utility model preferred forms, described mixed-media network modules mixed-media 1083 is the wireless network modules with WIFI function.In addition, described usb hub 108 also electrically connects image and the bar code reading module 100 that is useful on recognition image and bar code information removably, and provide driving electric for this image and bar code reading module 1082, described image and bar code reading module 100 detachables are in described usb hub 108, preferably, image and bar code reading module 100 can with the setting that becomes one of decoding circuit plate, in the hope of making that described application apparatus 200 is more simplified, volume is more small and exquisite.Described GPIO module 102 has the interactive signal of two-way input and two-way output, is used for devices such as gate inhibition, pilot lamp, hummer; Described RFID module 103 is applied to the contactless high integration IC-card read-write of 13.56MHz and uses; Described GPRS wireless module 104 can carry out communication by the GPRS mode and the external world.What deserves to be mentioned is: above-mentioned RFID module 103, GPRS wireless module 104, mixed-media network modules mixed-media 1083, bluetooth module 1081 can be referred to as the communication module group of the utility model application apparatus 200.
In the utility model preferred forms, when using application apparatus 200 to scan bar code or two dimensional image, the client is according to the prompting of Liquid Crystal Module 105, bar code to be checked or the image recognition window by application apparatus 200 is read in, be sent to after the image that is provided with by inside and the processing of bar code reading module 100 be reduced into after the decoding of decoding circuit plate can offer main frame need bar code or image information.After main frame receives this bar code or image information, the product information that is complementary by application queries database and this image and bar code, as information such as the price of product, images, and feed back to application apparatus 200, this application apparatus 200 can show Query Result on Liquid Crystal Module 105.
That is application apparatus 200 of the present utility model has the image and the bar code reading module 100 of photoconduction leading-in device 6 of the lighting source perforate 61 of chamfering of being provided with 610, and it effectively prevents the scattering of lighting source, illuminates target area to be scanned to greatest extent.
Certainly, be a kind of application mode of the utility model application apparatus 200 more than, it can also be applied in hand-held optical reader, pedestal formula optical reader etc.
Although be the example purpose, preferred implementation of the present utility model is disclosed, but those of ordinary skill in the art will recognize that under situation about not breaking away from by the disclosed scope and spirit of the present utility model of appending claims, various improvement, increase and replacement are possible.
Claims (10)
1. image and bar code reading module, but it circuit board and photoconduction leading-in device that comprises the camera lens of images acquired or bar code, the lighting source that illuminates image or bar code, image that receives the camera lens collection or bar code and handle the imageing sensor that is converted into signal, install for imageing sensor; It is characterized in that: described photoconduction leading-in device is provided with camera lens perforate of passing for camera lens and the some lighting source through holes that pass through for lighting source, and wherein the lighting source through hole offers the chamfering that expands outwardly to prevent the lighting source light scatter at least.
2. according to image described in the claim 1 and bar code reading module, it is characterized in that described image and bar code reading module also comprise light source board, it is positioned at photoconduction leading-in device rear portion, and wherein above-mentioned lighting source is mounted thereon and camera lens passes this light source board.
3. image described in claim 2 and bar code reading module is characterized in that, described image and bar code reading module also comprise mounting bracket, and described light source board and photoconduction leading-in device all are assembled in this mounting bracket.
4. image described in claim 3 and bar code reading module is characterized in that, described image and bar code reading module also comprise the aiming light source, and aiming light source and lighting source are mounted to lens bracket and the aiming light source bracket that all is positioned at mounting bracket respectively.
5. image described in claim 3 and bar code reading module, it is characterized in that, described imageing sensor is assembled in the mounting bracket rear portion and electrically connects with circuit board, and described circuit board has data-interface the signal of imageing sensor conversion is sent to the external decoder circuit.
6. application apparatus with above-mentioned image and bar code reading module, it comprises a recognition window that is used for images acquired and bar code, be located at key control unit in the application apparatus of described image and bar code reading module, for described key control unit provides the power supply module of electric power, and the image and bar code reading module and the decoding circuit plate that are used to carry out image and bar code reading; But this image and bar code reading module comprise the image or the bar code of the camera lens of images acquired or bar code, the lighting source that illuminates image or bar code, the collection of reception camera lens and are treated to imageing sensor, circuit board and the photoconduction leading-in device of signal; It is characterized in that: described photoconduction leading-in device is provided with camera lens perforate of passing for camera lens and the some lighting source through holes that pass through for lighting source, and wherein the lighting source through hole offers the chamfering that expands outwardly to prevent the lighting source light scatter at least.
7. according to the application apparatus described in the claim 6, it is characterized in that described image and bar code reading module also comprise light source board, it is positioned at photoconduction leading-in device rear portion, and wherein above-mentioned lighting source is mounted thereon and camera lens passes this light source board.
8. the application apparatus described in claim 7 is characterized in that, described image and bar code reading module also comprise mounting bracket, and described light source board and photoconduction leading-in device all are assembled in this mounting bracket.
9. the application apparatus described in claim 7, it is characterized in that, described image and bar code reading module also have the aiming light source of sight picture and bar code, and wherein camera lens and aiming light source are mounted to lens bracket and the aiming light source bracket that all is positioned at mounting bracket respectively.
10. the application apparatus described in claim 6 is characterized in that, described application apparatus also comprises Liquid Crystal Module, and it provides user's operation indicating and image or bar code Query Result to show.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202978600U CN201616105U (en) | 2009-12-16 | 2009-12-16 | Image and bar-code recognizing module and application device thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202978600U CN201616105U (en) | 2009-12-16 | 2009-12-16 | Image and bar-code recognizing module and application device thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201616105U true CN201616105U (en) | 2010-10-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202978600U Expired - Fee Related CN201616105U (en) | 2009-12-16 | 2009-12-16 | Image and bar-code recognizing module and application device thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201616105U (en) |
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2009
- 2009-12-16 CN CN2009202978600U patent/CN201616105U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101027 Termination date: 20161216 |