CN203038288U - Bar code reading decoding module and hand-held electronic device - Google Patents
Bar code reading decoding module and hand-held electronic device Download PDFInfo
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- CN203038288U CN203038288U CN 201220679280 CN201220679280U CN203038288U CN 203038288 U CN203038288 U CN 203038288U CN 201220679280 CN201220679280 CN 201220679280 CN 201220679280 U CN201220679280 U CN 201220679280U CN 203038288 U CN203038288 U CN 203038288U
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- bar code
- code reading
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- decoder module
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Abstract
The utility model provides a bar code reading decoding module and a hand-held electronic device. The bar code reading decoding module comprises a first circuit board, a reflector, a lens module and a support. The first circuit board comprises a bar code processing chip and an image sensing chip which are respectively located on different sides of the first circuit board. The image sensing chip is a CMOS (Complementary Metal-Oxide-Semiconductor Transistor) chip for image acquisition. The bar code processing chip is used for performing bar code decoding on acquired images. The lens module comprises a lens group and a mechanism member. The lens group is used for guiding incident light to the reflector. The mechanism member comprises a screw tooth for adjusting the focal length. The reflector is used for making the incident light vertically reflected to the image sensing chip. The support is used for bearing the first circuit board, the reflector and the lens module. Compared with the prior art, the bar code reading decoding module provided by the utility model has the beneficial effects of small size, low power consumption, few devices and low cost.
Description
Technical field
The utility model relates to the bar-code identification field, particularly a kind of bar code reading decoder module and hand-hold electronic device.
Background technology
Barcode scanner is to utilize photovoltaic principals bar code information to be converted into the input equipment of the acceptable information of computing machine, be usually used in library, hospital, bookstore and supermarket, a kind of input medium as quick registration or clearing, to in the commodity external packing or the image on the printed matter or bar code information direct reading, and be input in the on-line system.Therefore, barcode scanner need have recognition and decoding function at least, and prior art is mostly with bar code reading module (imaging module, imaging head) collocation decoding circuit plate, in order to realize aforementioned functional.
The electronic circuit framework of existing bar code reading module mainly is to use microprocessor (CPU) collocation random-access memory (ram) and flash memory (FLASH) computing framework, realizes the identification to image acquisition and the bar code of image chip.Foregoing structure is gathered processing instruction on the external non-volatile memory such as being stored in flash memory; When module started, microprocessor copied to the instruction set in the flash memory in the random access memory and moves, or directly moves at flash memory; The image of gathering in the operational process, the data of calculating process are stored on the random access memory.
Therefore, because existing recognition module has been used numerous electron devices such as CPU, RAM, FLASH, image sensor chip, not only the assembling test is loaded down with trivial details, and the total area of circuit board is difficult to accomplish 400mm
2In, and power is difficult to less than 1.5 watts.
The emergent light framework of existing bar code reading module mainly is to use lighting source and aims at light source, and the aiming light source can use light emitting diode (LED) or laser LED projection specific pattern, locatees identification targets such as bar codes in order to aiming and 25; Lighting source can use the LED transmitted light beam to be radiated on identification such as the bar code target, is beneficial to the bar code reading module and collects high-quality image and decode.In addition, aiming light source and lighting source can be positioned on same circuit board or the various boards, and the different lens arrangement of arranging in pairs or groups separately reaches and focuses on or the even effect of lighting, and for example the open case US Patent Publication No.:2003/0029917 of United States Patent (USP) has disclosed the aiming light source and is positioned at the first circuit board with image sensor chip, the bar code reading module that lighting source is positioned at second circuit board.Existing product on the market, for example Honeywell 5X80 product, Motorola SE3300 product all are to adopt similar concept design emergent light framework.
Therefore, the different lens because existing recognition module use plurality of LEDs is arranged in pairs or groups, as the Different Light purposes, device is more, and cost is higher.
In sum, the one-piece construction of existing bar code reading module need to be carried the assemblies such as circuit board, optical lens, lighting circuit plate of image sensor chip, in order to be fixed, and the light that intercepts extraneous non-imaging influences the image sensor chip image quality.Because need carrying than multicompartment, even comprise the fixing of various circuit boards, therefore the physical dimension of whole bar code reading module is difficult to accomplish 1000mm
3In, also therefore have defectives such as size is big, power consumption is big, device is many, cost height, unfavorable bar code reading module miniaturized design.Separate in the code reading module if need further decoding function to be included in, form the bar code reading decoder module, then more be difficult to reach the miniaturized design of integral module.
So fundamental purpose of the present utility model is to solve present bar code reading decoder module to be difficult to accomplish that very small dimensions, extremely low power dissipation, zero device are simplified most and the problem of very low cost.
The utility model content
At the deficiencies in the prior art, the utility model purpose is to provide a kind of very small dimensions, extremely low power dissipation, zero device to simplify most and bar code reading decoder module and the hand-hold electronic device of very low cost.
To achieve these goals, the utility model adopts following technical scheme: a bar code reading decoder module, and it comprises first circuit board, a catoptron, a camera lens module and a support, it is characterized in that:
Described first circuit board comprises a bar code processing chip and an image sensor chip, lay respectively at the not homonymy of described first circuit board, wherein, described image sensor chip is CMOS chips and in order to gathering image, and described bar code processing chip is used for described image is carried out bar code decoding;
Described camera lens module comprises a lens combination and mechanism's part, and wherein, described lens combination is used for incident light is directed to catoptron, and described mechanism part comprises that one is used for adjusting the thread of focal length;
Described catoptron is used for the incident light vertical reflection to described image sensor chip; And
As further improvement of the utility model, described bar code reading decoder module further comprises a second circuit board, and described second circuit board comprises a power-switching circuit.
As further improvement of the utility model, described image sensor chip is monochromatic chip.
As further improvement of the utility model, the exposure function of described image sensor chip is the honest and clean formula shutter of volume.
As further improvement of the utility model, the exposure function of described image sensor chip is global shutter.
As further improvement of the utility model, it is 40 to 50 degree that described catoptron places the angle on the support.
As further improvement of the utility model, described mechanism part is just further comprising a resistance.
As further improvement of the utility model, described mechanism part is fixed on the described support by a glue mode.
As further improvement of the utility model, described bar code reading decoder module further comprises an illuminating source, and the exposure function of the described image sensor chip of described bar code processing chip controls and control the lighting function of described illuminating source.
The utility model also can adopt following technical scheme: a hand-held electronic installation is characterized in that described hand-hold electronic device comprises foregoing bar code reading decoder module.
Compared with prior art, the beneficial effects of the utility model are: realize bar code reading decoder module miniaturized design, effectively reach very small dimensions, extremely low power dissipation, zero device and simplify most and very low cost.
Description of drawings
Fig. 1 a is the schematic perspective view of the utility model bar code reading decoder module.
Fig. 1 b is the exploded perspective view of the utility model bar code reading decoder module.
Fig. 1 c is the diagrammatic cross-section of first circuit board in the utility model bar code reading decoder module.
Fig. 2 is the schematic rear view of the utility model bar code reading decoder module.
Fig. 3 a is the side emergent light structure skeleton view of the utility model bar code reading decoder module.
Fig. 3 b is the special-shaped lens arrangement stereographic map of one of the utility model embodiment.
Fig. 4 a-4g is that the utility model illuminating source is in conjunction with the formed aiming of special-shaped lens and lighting pattern.
Fig. 5 a is the side incident light structure skeleton view of the utility model bar code reading decoder module.
Fig. 5 b is the schematic perspective view of the utility model camera lens module.
Fig. 6 is the schematic block circuit diagram of the utility model bar code reading decoder module.
Embodiment
The utility model relates to the bar code reading decoder module, it is mainly used in identifying bar code or two-dimensional barcode image, in order to make the purpose of this utility model, technical scheme and advantage clearer, is described in detail below in conjunction with accompanying drawing:
Shown in Fig. 1 a, 1b, the utility model bar code reading decoder module 100 comprises bar code processing chip 101, first circuit board 102, catoptron 105, second circuit board 107, support 109, camera lens module 111, special-shaped lens 113, illuminating source 115.Wherein, support 109 is in order to support and fixedly first circuit board 102, catoptron 105, second circuit board 107, camera lens module 111, special-shaped lens 113 and illuminating source 115.In addition, first circuit board 102 and second circuit board 107 are fixed in top and the rear of support 109 respectively with screw.Certainly, the aforementioned fixation mode also can use other fixed forms such as engaging, welding or bonding to realize, does not do concrete restriction at this.
Shown in Fig. 1 c, first circuit board 102 carries bar code process chip 101 and image sensor chips 103, lays respectively at the not homonymy of first circuit board 102, in order to reduce first circuit board 102 areas and to dwindle bar code reading decoder module 100 sizes.Image sensor chip 103 is to receive the light that catoptron 105 reflects, in order to gather image.Preferably, image sensor chip 103 can be two-dimentional complementary metal oxide semiconductor (CMOS) (CMOS) chip, and can adopt volume honest and clean formula shutter (rolling shutter) or global shutter (global shutter) to realize exposure.In addition, image sensor chip 103 can be monochrome (monochrome) chip or polychrome chip, serves as preferred with monochromatic chip.Bar code processing chip 101 is for the output exposure control signal so that image, output illumination control signal are gathered in 103 exposures of described image sensor chip, and can be used for described image is carried out bar code decoding.Because bar code processing chip 101 is the ic-type chip architecture, but not adopt microprocessor (CPU) collocation random-access memory (ram) and flash memory (FLASH) computing framework, therefore effectively reduce the size of bar code reading decoder module 100.
With reference to shown in Figure 2, in one of the utility model specific embodiment, second circuit board 107 is positioned at the rear of bar code reading decoder module 100, comprises the power-switching circuit (not shown), and has connector 201.Aforementioned power source change-over circuit and connector 201 are placed on the second circuit board 107, can avoid all electronics zero device and circuit all to be positioned on the first circuit board 102, make bar code reading decoder module 100 shared space three-dimensional size minimums.In another specific embodiment of the utility model, second circuit board 107 is positioned at the rear of bar code reading decoder module 100 equally, comprise the power-switching circuit (not shown), and the pad (not shown) is reserved in the bottom that is positioned at second circuit board 107, and do not adopt connector 201, wherein, the mainboard that can see through pad and end device directly welds, make bar code reading Decode engine 100 be fixed in end device, and can reach electrically connect characteristics such as power supply supply, signal transmission.Aforementioned power source change-over circuit and pad are placed on the second circuit board 107, can avoid all electronics zero device and circuit all to be positioned on the first circuit board 102, make bar code reading decoder module 100 shared space three-dimensional size minimums.
Shown in Fig. 3 a, the side emergent light structure of bar code reading decoder module 100 comprises special-shaped lens 113 and illuminating source 115, all be fixed in support 109, special-shaped lens 113 are fixed in the place ahead of illuminating source 115, particularly, see through above-mentioned configuration, the emergent light that illuminating source 115 sends can project lighting pattern and aiming pattern after by special-shaped lens 113 simultaneously.Preferably, illuminating source 115 can adopt general LED or polycrystalline packaged LED, and the optical package lens component of aforementioned LED can be circle or ellipse, also can have overdrive (overdriving) and gating (strobing) function; If adopt the polycrystalline packaged LED, inside can be three crystal grain (die) encapsulation or four die package, and inside comprises at least one ruddiness crystal grain, and other crystal grain can be blue light or green dies.In addition, aforementioned crystal grain all can independently be controlled luminous.Because whole bar code reading decoder module 100 only uses special-shaped lens 113 and an illuminating source 115 can project lighting pattern and aiming pattern simultaneously, namely throw light on and aim at function, therefore, compared with prior art, the utility model can obviously reduce illumination and zero device such as the required illuminating source of aiming function or lens, reduce cost the size of also effectively dwindling bar code reading decoder module 100 accordingly simultaneously.
In one of the utility model specific embodiment, shown in Fig. 3 b, special-shaped lens 113 comprise equal 301 and one optically focused zone 303, light zone, and all light zone 301 can be planar lens, and optically focused zone 303 can be convex lens or plano-convex lens.All light zone 301 mainly is positioned at the middle body of special-shaped lens 113, collocation illuminating source 115 projects uniform field of illumination or lighting pattern, optically focused zone 303 mainly be positioned at special-shaped lens 113 around, edge or corner portions located, collocation illuminating source 115 projects specific aiming pattern, for example strip, circular point shape pattern.Preferably, be example with Fig. 3 b, optically focused zone 303 is positioned at the both sides up and down of special-shaped lens 113, and length is the longest can be to the edge, the left and right sides of special-shaped lens 113, and the illuminating source 115 of can arranging in pairs or groups projects two parallel strip aiming patterns up and down.Certainly, optically focused zone 303 also can be positioned at the left and right sides of special-shaped lens 113, and length is the longest can be to the (not shown) of both sides of the edge up and down of special-shaped lens 113, and the illuminating source 115 of can arranging in pairs or groups projects two strip aiming patterns that the left and right sides is parallel; Particularly, according to strip aiming design of patterns and purposes, corresponding optically focused zone 303 configurable upper and lower sides in special-shaped lens 113, left and right sides, four sides or appoint the combination of getting more than the both sides.It should be noted that, in another specific embodiment of the utility model, the optically focused zone 303 of special-shaped lens 113 also can be set to bull's-eye, in order to project the aiming pattern of circular point shape, according to circular point shape aiming design of patterns and purposes, corresponding optically focused zone 303 configurable upper and lower sides in special-shaped lens 113, left and right sides, four sides central authorities or four corners.In addition, special-shaped lens 113 materials can be acryl, glass or other transparent, translucent optical materials, do not do concrete restriction at this.
Shown in Fig. 4 a-4g, according to the design of aforementioned special-shaped lens 113, collocation illuminating source 115, can throw and form 403 at least seven kinds of combinations of lighting pattern 401 and aiming pattern, wherein, lighting pattern 401 can be rectangle, and aiming pattern 403 can be strip or circular point shape.If aiming pattern 403 is strip, then shown in Fig. 4 a-4c, parallel upper and lower sides, left and right sides or four sides that are positioned at lighting pattern 401 respectively.The length of aiming pattern 403 also can be adjusted.For example the four side strips of Fig. 4 c aim at pattern 403, and optically focused zone 303 length that can adjust in the special-shaped lens 113 connect to four sides aiming pattern " mouth " shape.If aiming pattern 403 is circular point shape, then shown in Fig. 4 d-4f, can lay respectively at upper and lower sides, left and right sides, four sides central authorities or four corners of lighting pattern.
With color contrast, aforementioned lighting pattern 401 can be multiple visible light with aiming pattern 403, and color can be same color, for example red, white, green or blue.Aforementioned lighting pattern 401 also can be different colours with the color of aiming pattern 403, and for example lighting pattern 401 is red or white, and aiming pattern 403 is blue or green.Aforementioned different colours contrast realizes that can adopt the polycrystalline packaged LED, each crystal grain can independently be controlled luminous, in order to send the light of different colours in different time points if desire sees through single illuminating source 115.
Shown in Fig. 5 a, the side incident light structure of bar code reading decoder module 100 comprises image sensor chip 103, catoptron 105, camera lens module 111.Catoptron 105 all is fixed in support 109 with camera lens module 111, and camera lens module 111 is fixed in the place ahead of catoptron 105.Image sensor chip 103 is fixed in first circuit board 102, and is positioned at the top of catoptron 105, is used for receiving incident light.In another specific embodiment of the utility model, catoptron 105 can be positioned on the support 109 by miter angle, after making the light path of incident light be directed to catoptron 105 via camera lens module 111, by catoptron 105 incident light 90 degree is reflexed to image sensor chip 103 again, image sensor chip 103 is received behind the incident lights and gather image; It is the setting of present embodiment penetration mirror 105, change the light path of incident light single direction, collocation is arranged at the top of bar code reading decoder module 100 with image sensor chip 103, has effectively shortened the inner space degree of depth that bar code reading decoder module 100 receives the required reservations of incident lights.In brief, by the configuration of catoptron 105 in order to change the light path of incident light, arrange in pairs or groups the simultaneously space structure design of first circuit board 102 and image sensor chip 103, can effectively shorten the horizontal depth of single direction incident light, therefore, present embodiment not only can make length of side shortening, the area of first circuit board 102 and support 109 dwindle, and also can further dwindle the volume size of bar code reading decoder module 100 accordingly, specifically reaches microminiaturized effect.In addition, the miter angle of aforementioned catoptron 105 is placed angle, can allow the deviation of positive and negative 5 degree, and the reflection ray after namely incident light reflects via catoptron 105 can have positive and negative 10 degree deviations.Therefore, catoptron 105 places the angle on the support 109 to can be 40 to 50 degree.Camera lens module 111 comprises a lens combination 501 and mechanism's part 503, and wherein, lens combination 501 is installed in mechanism's part 503, and is used for incident light is directed to catoptron 105.
Simultaneously with reference to shown in Fig. 5 a and Fig. 5 b, mechanism's part 503 comprises that thread 505 and resistance are positive 507, and thread 505 can see through and screw in or screw out support 109 to adjust the focal length of camera lens module 111.The tubular space internal diameter that hinders in positive 507 external diameters and the support 109 equates.Therefore, when camera lens module 111 is installed on support 109, hinder the optical axis precision that positive 507 design can be used for promoting incident light.In addition, after utilizing that thread 505 is accurate and adjusting focal lengths, camera lens module 111 can be fixed in support 109 by a glue mode, for example uses UV glue to fix.
With reference to shown in Figure 6, the schematic block circuit diagram of bar code reading decoder module 100 comprises bar code processing chip 101, image sensor chip 103, second circuit board 107, storer 601, oscillator 603, illuminating source circuit board 605.Bar code processing chip 101 major functions are that bar code or two-dimensional barcode image that image sensor chip 103 sends are decoded, and can see through I
2The C bus is utilized serial communication mode configuration image sensing chip 103 or is sent exposure control signal in order to control the exposure of image sensor chip 103.The major function of image sensor chip 103 is to see through exposure to gather image, and sends the image of gathering to bar code processing chip 101 and decode.Storer 601 can be the electronics formula of erasing can make carbon copies the read only memory (EEPROM), and major function is the configuration information of storage bar code process chip 101 and image sensor chip 103, so that each start can both obtain proper configuration.Oscillator 603 major functions are the running clock that fixed frequency is provided for bar code processing chip 101, for example 12MHz.Comprise the illuminating source 115 among Fig. 1 b or Fig. 3 a in the illuminating source circuit board 605, wherein, illuminating source circuit board 605 can receive the illumination control signal that bar code processing chip 101 sends, in order to the illuminating source 115 among control chart 1b and Fig. 3 a, when gathering image, image sensor chip 103 exposures carry out light filling.Second circuit board 107 can adopt universal asynchronous receiving-transmitting transmitter (UART) and bar code processing chip 101 to intercom mutually, and major function is the mainboard of bridge terminal device, and signaling interface can externally be provided.End device can be hand-held barcode scanner, pedestal formula barcode scanner, information terminal, mobile data terminal, smart mobile phone or various hand-hold electronic devices 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. a bar code reading decoder module, it comprises first circuit board, a catoptron, a camera lens module and a support, it is characterized in that:
Described first circuit board comprises a bar code processing chip and an image sensor chip, lay respectively at the not homonymy of described first circuit board, wherein, described image sensor chip is CMOS chips and in order to gathering image, and described bar code processing chip is used for described image is carried out bar code decoding;
Described camera lens module comprises a lens combination and mechanism's part, and wherein, described lens combination is used for incident light is directed to catoptron, and described mechanism part comprises that one is used for adjusting the thread of focal length;
Described catoptron is used for the incident light vertical reflection to described image sensor chip; And
Described support is used for carrying described first circuit board, described catoptron and described camera lens module.
2. the bar code reading decoder module described in claim 1 is characterized in that, described bar code reading decoder module further comprises a second circuit board, and described second circuit board comprises a power-switching circuit.
3. the bar code reading decoder module described in claim 1 is characterized in that, described image sensor chip is monochromatic chip.
4. the bar code reading decoder module described in claim 1 is characterized in that, the exposure function of described image sensor chip is the honest and clean formula shutter of volume.
5. the bar code reading decoder module described in claim 1 is characterized in that, the exposure function of described image sensor chip is global shutter.
6. the bar code reading decoder module described in claim 1 is characterized in that, it is 40 to 50 degree that described catoptron places the angle on the support.
7. the bar code reading decoder module described in claim 1 is characterized in that, described mechanism part is just further comprising a resistance.
8. the bar code reading decoder module described in claim 1 is characterized in that, described mechanism part is fixed on the described support by a glue mode.
9. the bar code reading decoder module described in claim 1, it is characterized in that, described bar code reading decoder module further comprises an illuminating source, and the exposure function of the described image sensor chip of described bar code processing chip controls and control the lighting function of described illuminating source.
10. a hand-held electronic installation is characterized in that described hand-hold electronic device comprises the bar code reading decoder module described in claim 1.
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| CN 201220679280 CN203038288U (en) | 2012-12-11 | 2012-12-11 | Bar code reading decoding module and hand-held electronic device |
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| CN 201220679280 CN203038288U (en) | 2012-12-11 | 2012-12-11 | Bar code reading decoding module and hand-held electronic device |
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| CN203038288U true CN203038288U (en) | 2013-07-03 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103049727A (en) * | 2012-12-11 | 2013-04-17 | 福建新大陆自动识别技术有限公司 | Bar code recognizing, reading and decoding module and handheld electronic device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103049727A (en) * | 2012-12-11 | 2013-04-17 | 福建新大陆自动识别技术有限公司 | Bar code recognizing, reading and decoding module and handheld electronic device |
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| 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: 20130703 Termination date: 20171211 |