CN204695328U - A kind of linear CCD bar code identifying device - Google Patents
A kind of linear CCD bar code identifying device Download PDFInfo
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- CN204695328U CN204695328U CN201520232048.5U CN201520232048U CN204695328U CN 204695328 U CN204695328 U CN 204695328U CN 201520232048 U CN201520232048 U CN 201520232048U CN 204695328 U CN204695328 U CN 204695328U
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- bar code
- circuit
- linear ccd
- identifying device
- code identifying
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Abstract
The utility model proposes a kind of linear CCD bar code identifying device, comprise linear ccd image sensor, signal amplification circuit, CCD power switch circuit and microprocessor, described linear ccd image sensor scanning barcode, and after having scanned, the simulating signal of bar code is sent to described signal amplification circuit, the simulating signal of described signal amplification circuit to described bar code is amplified and the signal after amplifying is sent to described microprocessor and processes, described CCD power switch circuit is connected with described linear ccd image sensor and microprocessor respectively, for controlling the power supply to described linear ccd image sensor.Implement linear CCD bar code identifying device of the present utility model, there is following beneficial effect: can read containing the bar code on backlight, can remote separate type read.
Description
Technical field
The utility model relates to bar-code identification field, particularly a kind of linear CCD bar code identifying device.
Background technology
According to the range of application of bar code, require that reader both can read the bar code on non-backlight (as paper labels, plastics), can read again containing the bar code on backlight (as PC display screen/Mobile phone screen), and can remote separate type read.And conventional laser reader can not read containing the bar code on backlight (as PC display screen/Mobile phone screen), the existing reader of CCD on the market can not separate type read at a distance.In addition, single employing ADC or exterior I O mouth interrupt mode image data, it affects picking rate, takies a large amount of microprocessor flash space, reduces and identifies bar code speed and output bars code data speed.
Utility model content
The technical problems to be solved in the utility model is, for prior art above-mentioned can not read containing the bar code on backlight, can not the defect that reads of separate type at a distance, provide a kind of can read containing the bar code on backlight, can the linear CCD bar code identifying device that reads of remote separate type.
The utility model solves the technical scheme that its technical matters adopts: construct a kind of linear CCD bar code identifying device, comprise linear ccd image sensor, signal amplification circuit, CCD power switch circuit and microprocessor, described linear ccd image sensor scanning barcode, and after having scanned, the simulating signal of bar code is sent to described signal amplification circuit, the simulating signal of described signal amplification circuit to described bar code is amplified and the signal after amplifying is sent to described microprocessor and processes, described CCD power switch circuit is connected with described linear ccd image sensor and microprocessor respectively, for controlling the power supply to described linear ccd image sensor.
In linear CCD bar code identifying device described in the utility model, the inside of described microprocessor is provided with the collector for image data, described collector comprises DMA acquisition module and ADC acquisition module, and described DMA acquisition module is all connected with described signal amplification circuit with ADC acquisition module.
In linear CCD bar code identifying device described in the utility model, described microprocessor is also provided with general I/O interface, described general I/O interface is connected with described linear ccd image sensor, described linear CCD bar code identifying device also comprises location lighting circuit, and described location lighting circuit is connected with described general I/O interface, throw light on for scanning and locate.
In linear CCD bar code identifying device described in the utility model, described linear CCD bar code identifying device also comprises indicator light circuit, and described indicator light circuit is connected with described general I/O interface, be used to indicate scanning mode and reading code success.
In linear CCD bar code identifying device described in the utility model, described linear CCD bar code identifying device also comprises instruction sound circuit, and described instruction sound circuit is connected with described general I/O interface, for carrying out buzzing prompting when reading code is successful.
In linear CCD bar code identifying device described in the utility model, described linear CCD bar code identifying device also comprises reading start-up circuit, and described reading start-up circuit is connected with described general I/O interface, start reader for controlling.
In linear CCD bar code identifying device described in the utility model, described linear CCD bar code identifying device also comprises serial interface switching circuit and P/S2 circuit, described serial interface switching circuit is all connected with described microprocessor with P/S2 circuit, and described P/S2 circuit is also connected with described general I/O interface.
In linear CCD bar code identifying device described in the utility model, described linear CCD bar code identifying device also comprises USB output control circuit, described USB output control circuit is connected with described microprocessor, and described USB output control circuit is also connected with described general I/O interface.
In linear CCD bar code identifying device described in the utility model, described linear CCD bar code identifying device also comprises power circuit, and described power circuit is respectively with described CCD power switch circuit with microprocessor is connected, carry out voltage stabilizing for the first voltage step-down of being inputted outside to the second voltage or the second voltage of being inputted outside.
In linear CCD bar code identifying device described in the utility model, described linear CCD bar code identifying device also comprises external interface socket, and described external interface socket is connected with described power circuit, serial interface switching circuit, P/S2 circuit and USB output control circuit respectively.
Implement linear CCD bar code identifying device of the present utility model, there is following beneficial effect: owing to using linear ccd image sensor scanning barcode, it both can read non-backlight, can read again containing the bar code on backlight, it can also separate type read at a distance, so can read containing the bar code on backlight, can remote separate type read.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation in the utility model linear CCD bar code identifying device embodiment;
Fig. 2 is the electrical block diagram of described embodiment neutral line ccd image sensor;
Fig. 3 is the electrical block diagram of power circuit in described embodiment;
Fig. 4 is the electrical block diagram of serial interface switching circuit in described embodiment;
Fig. 5 is the electrical block diagram of USB output control circuit in described embodiment;
Fig. 6 is the electrical block diagram of described embodiment external interface socket;
Fig. 7 is the electrical block diagram of locating lighting circuit in described embodiment;
Fig. 8 is the electrical block diagram of indicator light circuit in described embodiment;
Fig. 9 is the electrical block diagram indicating sound circuit in described embodiment;
Figure 10 is the electrical block diagram reading start-up circuit in described embodiment;
Figure 11 is the electrical block diagram of CCD power switch circuit in described embodiment;
Figure 12 is the electrical block diagram of signal amplification circuit in described embodiment;
Figure 13 is the electrical block diagram of microprocessor in described embodiment.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
In the utility model linear CCD bar code identifying device embodiment, the structural representation of its linear CCD bar code identifying device as shown in Figure 1.In Fig. 1, this linear CCD bar code identifying device comprises linear ccd image sensor 1, signal amplification circuit 13, CCD power switch circuit 12 and microprocessor 15, linear ccd image sensor 1 is controlled by microprocessor 15 input, then start linear ccd image sensor 1 and read scanning barcode, and after scanning completes, the simulating signal of bar code is sent to signal amplification circuit 13, the simulating signal of signal amplification circuit 13 pairs of bar codes is amplified, and the signal after amplifying is sent to microprocessor 15 and processes, CCD power switch circuit 12 is connected with linear ccd image sensor 1 and microprocessor 15 respectively, for controlling the power supply to linear ccd image sensor 1.It is worth mentioning that, linear ccd image sensor can adopt Multiple Type, such as, adopt Toshiba TCD1254GFG, TCD1103GFG sensor etc.Owing to using linear ccd image sensor 1 scanning barcode, it both can read non-backlight, can read again containing the bar code on backlight, can also separate type read at a distance, so it can read containing the bar code on backlight, can remote separate type read.
In the present embodiment, the inside of microprocessor 15 is provided with the collector 14 for image data, and collector 14 comprises DMA acquisition module and ADC acquisition module (not shown), and DMA acquisition module is all connected with signal amplification circuit with ADC acquisition module.Adopt DMA+ADC to gather, it can improve picking rate.
In the present embodiment, microprocessor 15 is also provided with general I/O interface 7, general I/O interface 7 is connected with linear ccd image sensor 1, and linear CCD bar code identifying device also comprises location lighting circuit 8, and location lighting circuit 8 is connected with general I/O interface 7, throws light on for scanning and locate.It controls its switch by microprocessor 15, when starting linear ccd image sensor 1, needing synchronous unlatching to locate lighting circuit 8, is exactly specifically open scanning illumination and positioning light, for strengthening signal, the vision location of linear ccd image sensor 1 acquisition, and the position of invisible scanning.
In the present embodiment, linear CCD bar code identifying device also comprises indicator light circuit 9, and indicator light circuit 9 is connected with general I/O interface 7, be used to indicate scanning mode and reading code success.Such as: when product startup work, pilot lamp is closed, and when distinguishing successfully, output low level 150ms, then lights its pilot lamp, close after 150ms again.
In the present embodiment, linear CCD bar code identifying device also comprises instruction sound circuit 10, and instruction sound circuit 10 is connected with general I/O interface 7, for carrying out buzzing prompting when reading code is successful.When product startup work, hummer cuts out, and when distinguishing successfully, starting buzzer warning, closing after 100 ~ 300ms again.
In the present embodiment, linear CCD bar code identifying device also comprises reads start-up circuit 11, reads start-up circuit 11 and being connected with general I/O interface 7, starting reader for controlling.When there being external signal to trigger, start reader.
In the present embodiment, linear CCD bar code identifying device also comprises serial interface switching circuit 3 and P/S2 circuit 4, and serial interface switching circuit 3 is all connected with microprocessor 15 with P/S2 circuit 4, and P/S2 circuit 4 is also connected with general I/O interface 7.Serial interface switching circuit 3 is for transferring serial ports TTL to serial ports RS232, and P/S2 circuit 4 is for transferring serial ports TTL to serial ports P/S2.
In the present embodiment, linear CCD bar code identifying device also comprises USB output control circuit 5, USB output control circuit 5 and is connected with microprocessor 15, and USB output control circuit 5 is also connected with general I/O interface 7.Be worth mentioning be, in the present embodiment, general I/O interface 7 includes USB interface (not shown).USB interface is connected with USB output control circuit 5.The present embodiment is total, and USB output control circuit 5 makes gauge tap by triode, and is furnished with electrostatic prevention and anti-over-voltage protecting function, burns out microprocessor 15 when avoiding external unit unstable.
In the present embodiment, linear CCD bar code identifying device also comprises power circuit 2, and power circuit 2 is connected with CCD power switch circuit 12 and microprocessor 15 respectively, carry out voltage stabilizing for the first voltage step-down of being inputted outside to the second voltage or the second voltage of being inputted outside.In the present embodiment, the first voltage is 5V, and the second voltage is 3.3V.
In the present embodiment, linear CCD bar code identifying device also comprises external interface socket 6, and external interface socket 6 is connected with power circuit 2, serial interface switching circuit 3, P/S2 circuit 4 and USB output control circuit 5 respectively.It is worth mentioning that, in the present embodiment, external interface socket 6 is containing power supply and data-interface.
Fig. 2 is the electrical block diagram of the present embodiment neutral line ccd image sensor; Fig. 3 is the electrical block diagram of power circuit in the present embodiment; Fig. 4 is the electrical block diagram of serial interface switching circuit in the present embodiment; Fig. 5 is the electrical block diagram of USB output control circuit in the present embodiment; Fig. 6 is the electrical block diagram of the present embodiment external interface socket; Fig. 7 is the electrical block diagram of locating lighting circuit in the present embodiment; Fig. 8 is the electrical block diagram of indicator light circuit in the present embodiment; Fig. 9 is the electrical block diagram indicating sound circuit in the present embodiment; Figure 10 is the electrical block diagram reading start-up circuit in the present embodiment; Figure 11 is the electrical block diagram of CCD power switch circuit in the present embodiment; Figure 12 is the electrical block diagram of signal amplification circuit in the present embodiment; Figure 13 is the electrical block diagram of microprocessor in the present embodiment.
In a word, in the present embodiment, adopt linear ccd image sensor 1 scanning barcode, both the bar code that can read non-backlight (as paper labels, plastics) and contained on backlight (as PC display screen/Mobile phone screen), can separate type read at a distance again, adopt DMA+ADC to gather, greatly can improve picking rate, improve the speed of bar-code identification speed and output bars code data.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (10)
1. a linear CCD bar code identifying device, it is characterized in that, comprise linear ccd image sensor, signal amplification circuit, CCD power switch circuit and microprocessor, described linear ccd image sensor scanning barcode, and after having scanned, the simulating signal of bar code is sent to described signal amplification circuit, the simulating signal of described signal amplification circuit to described bar code is amplified and the signal after amplifying is sent to described microprocessor and processes, described CCD power switch circuit is connected with described linear ccd image sensor and microprocessor respectively, for controlling the power supply to described linear ccd image sensor.
2. linear CCD bar code identifying device according to claim 1, it is characterized in that, the inside of described microprocessor is provided with the collector for image data, described collector comprises DMA acquisition module and ADC acquisition module, and described DMA acquisition module is all connected with described signal amplification circuit with ADC acquisition module.
3. linear CCD bar code identifying device according to claim 2, it is characterized in that, described microprocessor is also provided with general I/O interface, described general I/O interface is connected with described linear ccd image sensor, described linear CCD bar code identifying device also comprises location lighting circuit, and described location lighting circuit is connected with described general I/O interface, throw light on for scanning and locate.
4. linear CCD bar code identifying device according to claim 3, is characterized in that, described linear CCD bar code identifying device also comprises indicator light circuit, and described indicator light circuit is connected with described general I/O interface, be used to indicate scanning mode and reading code success.
5. linear CCD bar code identifying device according to claim 4, is characterized in that, described linear CCD bar code identifying device also comprises instruction sound circuit, and described instruction sound circuit is connected with described general I/O interface, for carrying out buzzing prompting when reading code is successful.
6. linear CCD bar code identifying device according to claim 5, is characterized in that, described linear CCD bar code identifying device also comprises reading start-up circuit, and described reading start-up circuit is connected with described general I/O interface, start reader for controlling.
7. linear CCD bar code identifying device according to claim 6, it is characterized in that, described linear CCD bar code identifying device also comprises serial interface switching circuit and P/S2 circuit, described serial interface switching circuit is all connected with described microprocessor with P/S2 circuit, and described P/S2 circuit is also connected with described general I/O interface.
8. linear CCD bar code identifying device according to claim 7, it is characterized in that, described linear CCD bar code identifying device also comprises USB output control circuit, and described USB output control circuit is connected with described microprocessor, and described USB output control circuit is also connected with described general I/O interface.
9. linear CCD bar code identifying device according to claim 8, it is characterized in that, described linear CCD bar code identifying device also comprises power circuit, and described power circuit is respectively with described CCD power switch circuit with microprocessor is connected, carry out voltage stabilizing for the first voltage step-down of being inputted outside to the second voltage or the second voltage of being inputted outside.
10. linear CCD bar code identifying device according to claim 8, it is characterized in that, described linear CCD bar code identifying device also comprises external interface socket, and described external interface socket is connected with described power circuit, serial interface switching circuit, P/S2 circuit and USB output control circuit respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520232048.5U CN204695328U (en) | 2015-04-15 | 2015-04-15 | A kind of linear CCD bar code identifying device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520232048.5U CN204695328U (en) | 2015-04-15 | 2015-04-15 | A kind of linear CCD bar code identifying device |
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| CN204695328U true CN204695328U (en) | 2015-10-07 |
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| CN201520232048.5U Expired - Fee Related CN204695328U (en) | 2015-04-15 | 2015-04-15 | A kind of linear CCD bar code identifying device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106679699A (en) * | 2017-01-19 | 2017-05-17 | 济南瑞泉电子有限公司 | Reflective gauging table |
| CN106908715A (en) * | 2017-03-23 | 2017-06-30 | 张家港市欧微自动化研发有限公司 | A kind of test system for linear transducer |
| CN110244637A (en) * | 2019-06-27 | 2019-09-17 | 深圳市华文创新科技有限公司 | The new type control circuit of bar code scanner |
-
2015
- 2015-04-15 CN CN201520232048.5U patent/CN204695328U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106679699A (en) * | 2017-01-19 | 2017-05-17 | 济南瑞泉电子有限公司 | Reflective gauging table |
| CN106908715A (en) * | 2017-03-23 | 2017-06-30 | 张家港市欧微自动化研发有限公司 | A kind of test system for linear transducer |
| CN110244637A (en) * | 2019-06-27 | 2019-09-17 | 深圳市华文创新科技有限公司 | The new type control circuit of bar code scanner |
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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: 20151007 Termination date: 20160415 |