CN107451506A - Support the laser bar code scanning platform of one-dimension code and Quick Response Code identification - Google Patents
Support the laser bar code scanning platform of one-dimension code and Quick Response Code identification Download PDFInfo
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- CN107451506A CN107451506A CN201710639234.4A CN201710639234A CN107451506A CN 107451506 A CN107451506 A CN 107451506A CN 201710639234 A CN201710639234 A CN 201710639234A CN 107451506 A CN107451506 A CN 107451506A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
- G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
- G06K7/14—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation using light without selection of wavelength, e.g. sensing reflected white light
- G06K7/1404—Methods for optical code recognition
- G06K7/1408—Methods for optical code recognition the method being specifically adapted for the type of code
- G06K7/1413—1D bar codes
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
- G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
- G06K7/14—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation using light without selection of wavelength, e.g. sensing reflected white light
- G06K7/1404—Methods for optical code recognition
- G06K7/1408—Methods for optical code recognition the method being specifically adapted for the type of code
- G06K7/1417—2D bar codes
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Abstract
The present invention provides a kind of laser bar code scanning platform, operating circuit and method of work for supporting one-dimension code and Quick Response Code identification, laser bar code scanning platform includes pcb board, main controller, one-dimension code barcode scanning mechanism and Quick Response Code barcode scanning mechanism, wherein, one-dimension code barcode scanning mechanism includes laser tube, motor, four sides mirror and speculum, laser tube is connected on pcb board and by laser scanning element control line with main controller, and Quick Response Code barcode scanning mechanism includes the camera being connected with main controller by camera data/address bus.The transparent window that the camera of the present invention can pass through laser bar code scanning platform shoots with video-corder the outer working range of window, main controller distributes the workflow of one-dimensional scanning decoding and two-dimensional scan decoding according to default one-dimensional two-dimentional proportion, realize the identification of one-dimension code and Quick Response Code, one-dimension code and Quick Response Code is set to identify that work can be with seamless switching, no sense that pauses.
Description
Technical field
The invention belongs to laser barcode scanning technical field, and in particular to a kind of laser strip for supporting one-dimension code and Quick Response Code identification
Code scanning platform, its operating circuit and its method of work.
Background technology
It is extensive because laser bar code scanning platform has the advantages of sweep speed is fast, scanning barcode is compatible stronger
Applied to market, super market checkout field.But current laser bar code scanning platform can only scan papery bar code, can not scan
Quick Response Code in mobile phone screen.With the progress in epoch, customer is more and more general using electronic payment modes such as Alipay, wechats
Time, because current laser bar code scanning platform does not support the Quick Response Code of scanning cell phone screen, match somebody with somebody so trade company needs to increase in addition
The dimensional code scanner of one energy scanning cell phone screen, Quick Response Code is paid dedicated for scanning cell phone.Cashier needs to use laser
Barcode scanning platforms items scanning bar code, need to scan Client handset with dimensional code scanner to collect payment again, so both increase
Add the cost of trade company, also increase the workload of cashier.
The problem of for the increase Quick Response Code identification of laser bar code scanning platform, there is producer to employ at present and swept in laser bar code
The method for retouching integrated two-dimensional code identification module in platform, it is flat that some producers are directly assembled into scanning using Quick Response Code identification module
Platform, increase the recognizer of bar code.
There are the following problems and shortcoming for above-mentioned technical proposal：The laser scanning platform of module is identified for integrated two-dimensional code,
Because Quick Response Code identification module price itself is not low, holistic cost is caused to greatly increase, and Quick Response Code identification modular volume is not
It is small, also cause integral product volume bigger than normal.The scanning platform being assembled into for Quick Response Code identification module, although can compatible one-dimensional bar
Code, but its scan efficiency to bar code is significantly less than laser bar code scanning platform, influences its practicality.
The content of the invention
The technical problem to be solved in the present invention is to provide a kind of laser bar code scanning for supporting one-dimension code and Quick Response Code identification
Platform, there is one-dimension code and two-dimensional code scanning, recognition capability, one-dimension code and Quick Response Code is identified that work can be with seamless switching, nothing
Pause sense.
In order to solve the above technical problems, embodiments of the invention provide a kind of laser for supporting one-dimension code and Quick Response Code identification
Barcode scanning platforms, including pcb board, main controller and one-dimension code identifying system, the main controller are described one-dimensional on pcb board
Code identifying system includes one-dimension code barcode scanning mechanism and one-dimension code decoding mechanism, wherein,
The one-dimension code barcode scanning mechanism includes：Laser tube, motor, four sides mirror and speculum, the laser tube are located at
It is connected on pcb board and by laser scanning element control line with main controller, the four sides mirror is located at the remote laser tube of pcb board
Side, the lower section of the four sides mirror are provided with motor, are provided with speculum above the side of the four sides mirror, the speculum is located at
Laser tube is sent on the path of laser and the path of four sides mirror reflection laser；
The one-dimension code decoding mechanism includes：One-dimension code decoder；
The laser bar code scanning platform also includes Quick Response Code identifying system, and it includes Quick Response Code barcode scanning mechanism and Quick Response Code
Mechanism is decoded, wherein,
The Quick Response Code barcode scanning mechanism includes：The camera being connected with main controller by camera data/address bus；
The Quick Response Code decoding mechanism includes：Two-dimensional code decoder.
Above-mentioned support one-dimension code and the laser bar code scanning platform of Quick Response Code identification also include sleeping/waking mechanism, its
Including：Photo resistance on pcb board, wherein,
Photo resistance, it is connected by amplifying circuit with main controller, the change of scanning area ambient light is perceived, by ambient light
Pace of change and scaling signal are transferred to main controller；
Main controller, the pace of change and scaling signal of ambient light are received, and by the pace of change of ambient light and ratio with setting
Determine threshold value to be compared；
Motor, it is connected with main controller, when the pace of change and ratio of main controller perception ambient light reach given threshold
Shi Qidong motors, driving four sides mirror rotation；
Laser tube, it is connected with main controller, the pace of change and ratio of ambient light start when reaching given threshold, send laser
Beam, expose on speculum；
Speculum, laser beam is reflexed on the four sides mirror of rotation；
Four sides mirror, laser beam is reflexed on speculum again and forms laser light net.
Further, the ambient light unconverted time for being used for measuring and judge that photo resistance perceives is provided with the main controller
Timer.
Wherein, the one-dimension code barcode scanning mechanism also includes being used for the silicon photocell for detecting the laser intensity that laser tube is sent.
Above-mentioned support one-dimension code and the laser bar code scanning platform of Quick Response Code identification also include shell, the pcb board, master
Device, laser tube, four sides mirror, speculum and camera are controlled in shell, the shell shoots with video-corder window, institute provided with transparent
State and shoot with video-corder window and be located at the shooting with video-corder in region of camera, the window of shooting with video-corder sends laser located at laser tube, exposes to speculum
Path on.
The present invention also provides a kind of operating circuit for supporting one-dimension code and the laser bar code scanning platform of Quick Response Code identification, bag
Include power circuit, governor circuit, one-dimension code identification circuit, Quick Response Code identification circuit and sleeping/waking circuit, the master control electricity
Road, one-dimension code identification circuit, Quick Response Code identification circuit and sleeping/waking circuit are all connected with power circuit, the governor circuit bag
Scan mode switching circuit is included, the one-dimension code identification circuit includes circuit for controlling motor, one-dimension code laser transmission circuit and one
Code decoding circuit is tieed up, the Quick Response Code identification circuit includes Quick Response Code laser transmission circuit and Quick Response Code decoding circuit.
Above-mentioned support one-dimension code and the operating circuit of laser bar code scanning platform of Quick Response Code identification are specially：
Power positive end on the main controller is connected with positive source, and power cathode end is connected with power cathode；
A wherein electrode for the photo resistance is connected with positive source, and another electrode is connected with amplifier negative input end, fortune
Output end is put with the signal input part of main controller to be connected；
The main controller is provided with the first signal output part, secondary signal output end and the 3rd signal output part, and described
One signal output part is connected with the base stage of the first NPN type triode, and the secondary signal output end is connected with the pole of the second NPN type three
The base stage of pipe；
The positive pole of the laser tube is connected with positive source, and negative pole is connected with the colelctor electrode of the first NPN type triode, described
The emitter stage of first NPN type triode is connected with power cathode；
The positive pole of the motor is connected with positive source, and negative pole is connected with the colelctor electrode of the second NPN type triode, institute
The emitter stage for stating the second NPN type triode is connected with power cathode；
The camera is connected by camera data/address bus with the 3rd signal output part.
The present invention also provides a kind of work of the laser bar code scanning platform of above-mentioned support one-dimension code and Quick Response Code identification
Method, comprise the following steps：
Start normal work after S01, laser scanning platform start；
S02, laser scanning platform detect laser intensity by silicon photocell extremely amplifying circuit；
S03, laser intensity whether meet demand, it is such as no, adjust laser tube intensity, carry out step S02；In this way, walked
Rapid S04；
S04, detection motor speed；
S05, motor speed whether meet demand, it is such as no, adjust motor rotating speed, carry out step S04；In this way,
Carry out step S06；
S06, pass through silicon photocell extremely amplifying circuit acquisition bar code laser reflection signal；
S07, the ADC converters progress analog-to-digital conversion by bar code laser reflection signal by main controller, then by leading
Control device and software decoding is carried out to the data after analog-to-digital conversion according to bar code specification；
S07, judge bar code whether successfully decoded, in this way, export one-dimension code data, carry out step S02；It is such as no, enter
Row step S08；
S08, obtain camera image；
S09, main controller are extracted the two-dimensional barcode information in image by software, and then main controller is according to two-dimensional strip
Code specification carries out software decoding to the two-dimensional bar code data extracted；
S10, judge two-dimensional bar code whether successfully decoded, in this way, export two-dimensional code data, carry out step S08；Such as no, root
According to preset ratio allocation flow, then judge whether the Quick Response Code flow of distribution, in this way, carry out step S08, otherwise carry out step
S02。
Wherein, it is sleeping/waking step between step S01 and S02, including：
S001, photo resistance perceive the ambient light of scanning area, and the ambient light signal perceived is transmitted to main controller,
Main controller judges whether ambient light changes, if so, carrying out step S01；If it is not, carry out step S002；
S002, the timer of main controller judge whether the ambient light unconverted time arrives the setting stand-by period, if it is not, carrying out
Step S001；If so, carry out step S003；
S003, laser bar code scanning platform enter resting state；
S004, photo resistance perceive the ambient light of scanning area, and the ambient light signal perceived is transmitted to main controller,
Main controller judges whether ambient light changes, if so, carrying out step S01；If it is not, carry out step S003.
The above-mentioned technical proposal of the present invention has the beneficial effect that：The present invention inside laser scanning platform by increasing pin
Hole camera, the transparent window that cam lens can pass through laser bar code scanning platform shoot with video-corder the outer working range of window, and pin hole is taken the photograph
Picture head connects laser bar code scanning platform main controller by camera data/address bus, and main controller is according to shared by default one-dimensional two dimension
Ratio decodes the workflow decoded with two-dimensional scan to distribute one-dimensional scanning, realizes the identification of one-dimension code and Quick Response Code, makes one
Tie up code and Quick Response Code identification work can be with seamless switching, no sense that pauses.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the structure diagram of the present invention；
Fig. 3 is the circuit theory diagrams of the present invention；
Fig. 4 is the workflow diagram of the present invention.
Description of reference numerals：
1st, pcb board；2nd, main controller；3rd, laser tube；4th, four sides mirror；5th, speculum；6th, photo resistance；7th, silicon photocell；8、
Camera.
Embodiment
To make the technical problem to be solved in the present invention, technical scheme and advantage clearer, below in conjunction with accompanying drawing and tool
Body embodiment is described in detail.
As shown in Figure 1 and Figure 2, a kind of laser bar code scanning platform for supporting one-dimension code and Quick Response Code identification, including pcb board
1st, main controller 2 and one-dimension code identifying system, on pcb board 1, the one-dimension code identifying system includes one-dimensional the main controller 2
Code barcode scanning mechanism and one-dimension code decoding mechanism, wherein,
The one-dimension code barcode scanning mechanism includes：Laser tube 3, motor, four sides mirror 4, speculum 5 and silicon photocell 7, institute
State laser tube 3 to be connected with main controller 2 on pcb board 1 and by laser scanning element control line, the four sides mirror 4 is located at PCB
The side of the remote laser tube 3 of plate 1, the lower section of the four sides mirror 4 are provided with motor (not shown), the four sides mirror 4
Side above be provided with speculum 5, the speculum 5 sends the path of laser and the road of the reflection laser of four sides mirror 4 located at laser tube 3
On footpath, the silicon photocell 7 is used to detect the laser intensity that laser tube 3 is sent.The one-dimension code decoding mechanism includes：One-dimension code
Decoder.
The laser bar code scanning platform also includes Quick Response Code identifying system, and it includes Quick Response Code barcode scanning mechanism and Quick Response Code
Mechanism is decoded, wherein,
The Quick Response Code barcode scanning mechanism includes：Powered by power supply and be connected with main controller 2 by camera data/address bus
Camera 8；
The Quick Response Code decoding mechanism includes：Two-dimensional code decoder.
Above-mentioned support one-dimension code and the laser bar code scanning platform of Quick Response Code identification also include sleeping/waking mechanism, its
Including：Photo resistance 6 on pcb board 1, wherein,
Photo resistance, it is connected by amplifying circuit with main controller, the change of scanning area ambient light is perceived, by ambient light
Pace of change and scaling signal are transferred to main controller；
Main controller, the pace of change and scaling signal of ambient light are received, and by the pace of change of ambient light and ratio with setting
Determine threshold value to be compared；
Motor, it is connected with main controller, when the pace of change and ratio of main controller perception ambient light reach given threshold
Shi Qidong motors, driving four sides mirror rotation；
Laser tube, it is connected with main controller, the pace of change and ratio of ambient light start when reaching given threshold, send laser
Beam, expose on speculum；
Speculum, laser beam is reflexed on the four sides mirror of rotation；
Four sides mirror, laser beam is reflexed on speculum again and forms laser light net.
The present embodiment selects MG41-21 photo resistance and STM32F407 main controllers.
The timing for being used for measuring and judge the ambient light unconverted time that photo resistance perceives is provided with the main controller
Device, preferably timer2 modules.
Preferably, above-mentioned support one-dimension code and the laser bar code scanning platform of Quick Response Code identification include shell, the PCB
Plate 1, main controller 2, laser tube 3, four sides mirror 4, speculum 5, camera 8, smooth surface resistance 6, silicon photocell 7, one-dimension code decoder,
Two-dimensional code decoder etc. is in shell, and the shell is provided with transparent window of shooting with video-corder, and the window of shooting with video-corder is positioned at shooting
Head is shot with video-corder in region, and the window of shooting with video-corder sends laser located at laser tube, exposed on the path of speculum.
The embodiment of the present invention also provides a kind of work for supporting one-dimension code and the laser bar code scanning platform of Quick Response Code identification
Circuit, it is characterised in that including power circuit, governor circuit, one-dimension code identification circuit, Quick Response Code identification circuit and dormancy/call out
Awake circuit, the governor circuit, one-dimension code identification circuit, Quick Response Code identification circuit and sleeping/waking circuit are all connected with power supply electricity
Road, the governor circuit include scan mode switching circuit, and the one-dimension code identification circuit includes circuit for controlling motor, one-dimension code
Laser transmission circuit and one-dimension code decoding circuit, the Quick Response Code identification circuit include Quick Response Code laser transmission circuit and Quick Response Code
Decoding circuit.
As shown in figure 3, the operating circuit tool of above-mentioned support one-dimension code and the laser bar code scanning platform of Quick Response Code identification
Body is：
Power positive end on the main controller is connected with positive source, and power cathode end is connected with power cathode；
A wherein electrode for the photo resistance is connected with positive source, and another electrode is connected with amplifier negative input end, fortune
Output end is put with the signal input part of main controller to be connected；
The main controller is provided with the first signal output part, secondary signal output end and the 3rd signal output part, and described
One signal output part is connected with the base stage of the first NPN type triode, and the secondary signal output end is connected with the pole of the second NPN type three
The base stage of pipe；
The positive pole of the laser tube is connected with positive source, and negative pole is connected with the colelctor electrode of the first NPN type triode, described
The emitter stage of first NPN type triode is connected with power cathode；
The positive pole of the motor is connected with positive source, and negative pole is connected with the colelctor electrode of the second NPN type triode, institute
The emitter stage for stating the second NPN type triode is connected with power cathode；
The camera is connected by camera data/address bus with the 3rd signal output part.
Amplifier therein is OP-07 type amplifiers, and the first NPN type triode and the second NPN type triode are selected
MMBT3904W triodes.
As shown in figure 4, the embodiment of the present invention also provides a kind of laser bar code scanning for supporting one-dimension code and Quick Response Code identification
The method of work of platform, comprises the following steps：
Start normal work after S01, laser scanning platform start；
S02, laser scanning platform detect laser intensity by BPW34 types silicon photocell extremely amplifying circuit；
S03, laser intensity whether meet demand, it is such as no, adjust laser tube intensity, carry out step S02；In this way, walked
Rapid S04；
S04, detection motor speed；
S05, motor speed whether meet demand, it is such as no, adjust motor rotating speed, carry out step S04；In this way,
Carry out step S06；
S06, pass through BPW34 types silicon photocell extremely amplifying circuit acquisition bar code laser reflection signal；
S07, the ADC converters progress analog-to-digital conversion by bar code laser reflection signal by STM32F407 main controllers,
Then software decoding is carried out to the data after analog-to-digital conversion according to bar code specification by main controller；
S07, judge bar code whether successfully decoded, in this way, export one-dimension code data, carry out step S02；It is such as no, enter
Row step S08；
S08, obtain camera image；
S09, STM32F407 main controller are extracted the two-dimensional barcode information in image by software, then main controller
Software decoding is carried out to the two-dimensional bar code data extracted according to two-dimensional bar code specification；
S10, judge two-dimensional bar code whether successfully decoded, in this way, export two-dimensional code data, carry out step S08；Such as no, root
According to preset ratio allocation flow, then judge whether the Quick Response Code flow of distribution, in this way, carry out step S08, otherwise carry out step
S02。
Wherein, it is sleeping/waking step between step S01 and S02, including：
S001, photo resistance perceive the ambient light of scanning area, and the ambient light signal perceived is transmitted to main controller,
Main controller judges whether ambient light changes, if so, carrying out step S01；If it is not, carry out step S002；
S002, the timer of main controller judge whether the ambient light unconverted time arrives the setting stand-by period, if it is not, carrying out
Step S001；If so, carry out step S003；
S003, laser bar code scanning platform enter resting state；
S004, photo resistance perceive the ambient light of scanning area, and the ambient light signal perceived is transmitted to main controller,
Main controller judges whether ambient light changes, if so, carrying out step S01；If it is not, carry out step S003.
Compared with prior art, tool has the advantage that the present invention：
1st, cost is cheap, it is only necessary to increases pinhole cameras and few electronic component.
2nd, small volume, without doing big change to the original structure of laser bar code scanning platform.
3rd, because two kinds of code systems use same main control chip, one-dimension code and Quick Response Code is allow to identify work without seaming and cutting
Change, no sense that pauses.
4th, because two kinds of code systems use same main control chip, make this laser bar code scanning platform interface simple, upgrading is held
Easily.
Described above is the preferred embodiment of the present invention, it is noted that for those skilled in the art
For, on the premise of principle of the present invention is not departed from, some improvements and modifications can also be made, these improvements and modifications
It should be regarded as protection scope of the present invention.
Claims (9)
1. a kind of laser bar code scanning platform for supporting one-dimension code and Quick Response Code identification, including pcb board, main controller and one-dimension code are known
Other system, the main controller is on pcb board, it is characterised in that the one-dimension code identifying system includes one-dimension code barcode scanning mechanism
Mechanism is decoded with one-dimension code, wherein,
The one-dimension code barcode scanning mechanism includes：Laser tube, motor, four sides mirror and speculum, the laser tube are located at pcb board
Above and by laser scanning element control line it is connected with main controller, the four sides mirror is located at the side of the remote laser tube of pcb board,
The lower section of the four sides mirror is provided with motor, is provided with speculum above the side of the four sides mirror, the speculum is located at laser
Pipe is sent on the path of laser and the path of four sides mirror reflection laser；
The one-dimension code decoding mechanism includes：One-dimension code decoder；
The laser bar code scanning platform also includes Quick Response Code identifying system, and it includes Quick Response Code barcode scanning mechanism and Quick Response Code decoding
Mechanism, wherein,
The Quick Response Code barcode scanning mechanism includes：The camera being connected with main controller by camera data/address bus；
The Quick Response Code decoding mechanism includes：Two-dimensional code decoder.
2. the laser bar code scanning platform according to claim 1 for supporting one-dimension code and Quick Response Code identification, it is characterised in that
Also include sleeping/waking mechanism, it includes：Photo resistance on pcb board, wherein,
Photo resistance, it is connected by amplifying circuit with main controller, the change of scanning area ambient light is perceived, by the change of ambient light
Speed and scaling signal are transferred to main controller；
Main controller, the pace of change and scaling signal of ambient light are received, and by the pace of change of ambient light and ratio with setting threshold
Value is compared；
Motor, it is connected with main controller, is opened when main controller perceives the pace of change of ambient light and ratio reaches given threshold
Dynamic motor, driving four sides mirror rotation；
Laser tube, it is connected with main controller, the pace of change and ratio of ambient light start when reaching given threshold, send laser beam,
Expose on speculum；
Speculum, laser beam is reflexed on the four sides mirror of rotation；
Four sides mirror, laser beam is reflexed on speculum again and forms laser light net.
3. the laser bar code scanning platform according to claim 1 or 2 for supporting one-dimension code and Quick Response Code identification, its feature exist
In the timer provided with the ambient light unconverted time perceived for measuring and judging photo resistance in the main controller.
4. the laser bar code scanning platform according to claim 1 for supporting one-dimension code and Quick Response Code identification, it is characterised in that
The one-dimension code barcode scanning mechanism also includes being used for the silicon photocell for detecting the laser intensity that laser tube is sent.
5. the laser bar code scanning platform according to claim 1 for supporting one-dimension code and Quick Response Code identification, it is characterised in that
Also include shell, the pcb board, main controller, laser tube, four sides mirror, speculum and camera are in shell, the shell
Be provided with it is transparent shoot with video-corder window, the window of shooting with video-corder is located at the shooting with video-corder in region of camera, and the window of shooting with video-corder is located at laser
Pipe sends laser, exposed on the path of speculum.
6. the laser bar code scanning platform that a kind of support one-dimension code and Quick Response Code such as any one of Claims 1 to 5 identifies
Operating circuit, it is characterised in that including power circuit, governor circuit, one-dimension code identification circuit, Quick Response Code identification circuit and stop
Dormancy/wake-up circuit, the governor circuit, one-dimension code identification circuit, Quick Response Code identification circuit and sleeping/waking circuit are all connected with electricity
Source circuit, the governor circuit include scan mode switching circuit, and the one-dimension code identification circuit includes circuit for controlling motor, one
Dimension code laser transmission circuit and one-dimension code decoding circuit, the Quick Response Code identification circuit include Quick Response Code laser transmission circuit and two
Tie up code decoding circuit.
7. the operating circuit according to claim 6 for supporting one-dimension code and the laser bar code scanning platform of Quick Response Code identification,
Characterized in that, it is specially：
Power positive end on the main controller is connected with positive source, and power cathode end is connected with power cathode；
A wherein electrode for the photo resistance is connected with positive source, and another electrode is connected with amplifier negative input end, and amplifier is defeated
Go out end with the signal input part of main controller to be connected；
The main controller is provided with the first signal output part, secondary signal output end and the 3rd signal output part, first letter
Number output end is connected with the base stage of the first NPN type triode, and the secondary signal output end is connected with the second NPN type triode
Base stage；
The positive pole of the laser tube is connected with positive source, and negative pole is connected with the colelctor electrode of the first NPN type triode, and described first
The emitter stage of NPN type triode is connected with power cathode；
The positive pole of the motor is connected with positive source, and negative pole is connected with the colelctor electrode of the second NPN type triode, and described
The emitter stage of two NPN type triodes is connected with power cathode；
The camera is connected by camera data/address bus with the 3rd signal output part.
8. the laser bar code scanning platform that a kind of support one-dimension code and Quick Response Code such as any one of Claims 1 to 5 identifies
Method of work, it is characterised in that comprise the following steps：
Start normal work after S01, laser scanning platform start；
S02, laser scanning platform detect laser intensity by silicon photocell extremely amplifying circuit；
S03, laser intensity whether meet demand, it is such as no, adjust laser tube intensity, carry out step S02；In this way, step is carried out
S04；
S04, detection motor speed；
S05, motor speed whether meet demand, it is such as no, adjust motor rotating speed, carry out step S04；In this way, carry out
Step S06；
S06, pass through silicon photocell extremely amplifying circuit acquisition bar code laser reflection signal；
S07, the ADC converters progress analog-to-digital conversion by bar code laser reflection signal by main controller, then by main controller
Software decoding is carried out to the data after analog-to-digital conversion according to bar code specification；
S07, judge bar code whether successfully decoded, in this way, export one-dimension code data, carry out step S02；It is such as no, walked
Rapid S08；
S08, obtain camera image；
S09, main controller are extracted the two-dimensional barcode information in image by software, and then main controller is advised according to two-dimensional bar code
Model carries out software decoding to the two-dimensional bar code data extracted；
S10, judge two-dimensional bar code whether successfully decoded, in this way, export two-dimensional code data, carry out step S08；As no, according to pre-
If pro rate flow, then judge whether the Quick Response Code flow of distribution, in this way, carry out step S08, otherwise carry out step S02.
9. the method for work of the laser bar code scanning platform of support one-dimension code and Quick Response Code identification described in as requested 8, it is special
Sign is, is sleeping/waking step between step S01 and S02, including：
S001, photo resistance perceive the ambient light of scanning area, and the ambient light signal perceived is transmitted to main controller, master control
Device judges whether ambient light changes, if so, carrying out step S01；If it is not, carry out step S002；
S002, the timer of main controller judge whether the ambient light unconverted time arrives the setting stand-by period, if it is not, carrying out step
S001；If so, carry out step S003；
S003, laser bar code scanning platform enter resting state；
S004, photo resistance perceive the ambient light of scanning area, and the ambient light signal perceived is transmitted to main controller, master control
Device judges whether ambient light changes, if so, carrying out step S01；If it is not, carry out step S003.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710639234.4A CN107451506A (en) | 2017-07-31 | 2017-07-31 | Support the laser bar code scanning platform of one-dimension code and Quick Response Code identification |
Applications Claiming Priority (1)
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