CN105654633A - POS code scanning payment method, system and device - Google Patents
POS code scanning payment method, system and device Download PDFInfo
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- CN105654633A CN105654633A CN201511022567.XA CN201511022567A CN105654633A CN 105654633 A CN105654633 A CN 105654633A CN 201511022567 A CN201511022567 A CN 201511022567A CN 105654633 A CN105654633 A CN 105654633A
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- barcode scanning
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- light
- pos
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Classifications
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- G—PHYSICS
- G07—CHECKING-DEVICES
- G07G—REGISTERING THE RECEIPT OF CASH, VALUABLES, OR TOKENS
- G07G1/00—Cash registers
- G07G1/12—Cash registers electronically operated
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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
- G06K7/10544—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation by scanning of the records by radiation in the optical part of the electromagnetic spectrum
- G06K7/10712—Fixed beam scanning
- G06K7/10722—Photodetector array or CCD scanning
- G06K7/10732—Light sources
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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
Abstract
The invention discloses a POS code scanning payment method, system and device. The method includes the following steps that: S1, external light intensity is obtained, and is converted into electric parameter values, and the average value of the electrical parameter values is calculated; S2, whether the average value is smaller than a light intensity threshold value is judged; and if the average value is smaller than the light intensity threshold value, a step S3 is executed, and the method returns the step S1, otherwise, a step S4 is executed; S3, light supplement signals are emitted, and a camera is controlled to realize light supplement; and S4, a barcode is scanned, and code scanning payment is carried out. With the above technical schemes of the invention adopted, self-adaptive light supplement of a system can be realized, and the quality of a barcode image can be effectively improved when external light is insufficient under the premise that external light conditions are not changed, and cost can be significantly decreased.
Description
Technical field
The present invention relates to image decoding technique field, especially relate to a kind of POS barcode scanning payment procedure, system and device.
Background technology
At present, what POS terminal (POS platform or fixing cashier) barcode scanning paid main employing is the external scanner of terminal, for bar code decoding, completes barcode scanning and pays, it may also be useful to be convenient, barcode scanning success ratio height. But scanner is expensive on the market, it is achieved barcode scanning pays the equipment cost height dropped into.
Meanwhile, present image-type camera many employings global shutter cmos sensor, it is possible to obtaining the target image of movement fast, image distortion rate is low. And the whole world only only a few manufacturers produce global shutter cmos sensor, price height, substitutability is poor. Digital camera can directly catch image, then passes to computer by USB interface. Therefore, it is possible to adopt digital camera machine to catch bar code image, transmit view data by USB. Digital camera rate of utilization is wide, and price is lower, and substitutability is good. But when ambient is not enough, the sequence of image frames brightness collected is inadequate, it is necessary to change ambient, to improve picture quality.
In addition, prior art is all scanned by scanner active alignment payment code usually, pays to realize barcode scanning. But the usual weight of scanner is relatively big, not easy to grip, therefore uses scanner barcode scanning not high for the user experience of some children, the elderly or trick inconvenience.
Summary of the invention
Technical problem to be solved by this invention is: provide a kind of POS barcode scanning payment system based on USB camera and method, when not changing external lighting conditions, utilize autogamy camera from light filling function, obtain good sequence of image frames, to carry out image real time transfer and decode, and do not need additionally to purchase scanner for barcode scanning and pay, significantly reducing costs, substitutability is good.
In order to solve the problems of the technologies described above, the technical solution used in the present invention is: provides a kind of POS barcode scanning payment procedure, comprising:
S1: obtain ambient light intensity, be converted to electrical parameter values, and calculate the mean value of described electrical parameter values;
S2: judge whether described mean value is less than Intensity threshold;
If then performing step S3: send benefit optical signal, control camera mends light; And return step S1;
Otherwise, then perform step S4: scanning barcode, and carry out barcode scanning payment.
For solving the problem, the present invention also provides a kind of POS barcode scanning payment system, comprising:
Initial value module, for obtaining ambient light intensity, is converted to electrical parameter values, and calculates the mean value of described electrical parameter values;
Judge module, for judging whether described mean value is less than threshold value;
Illumination module, for receiving benefit optical signal, control camera mends light;
Barcode scanning module, for scanning barcode, and carries out barcode scanning payment.
For solving the problem, the present invention also provides a kind of POS barcode scanning to pay device, comprising: control module, illumination module, image-forming module and data decode module, wherein:
Control module also comprises: light intensity judging unit, signal light control unit and shooting switch control unit; Light intensity judging unit is electrically connected with signal light control unit, and light intensity judging unit, by detection ambient, judges whether to need to mend light to camera; Signal light control unit is electrically connected with illumination module, and when light intensity judging unit provides benefit optical signal, control illumination module is opened LED illumination lamp and mended light to camera by signal light control unit; Shooting switch control unit be electrically connected with image-forming module, and control module is opened the light control unit startup camera acquisition bar code image by shooting, and sends data decode module and decodes.
The useful effect of the present invention is: be different from prior art, and by ambient light, the present invention is by thinking that light intensity is converted into electric signal parameter, and export mean value, and by judging the size of mean value and predetermined threshold value, it is determined whether mend light, and barcode scanning pays. By the way, the self-adaptation that the present invention can realize system mends light, on the basis not changing ambient condition, can effectively improve the quality of bar code image during ambient deficiency, significantly reduce costs.
Accompanying drawing explanation
Fig. 1 is the schematic appearance of the payment device of the POS barcode scanning based on USB camera of the specific embodiment of the invention;
Fig. 2 is the one-piece construction block diagram one of the POS barcode scanning payment system based on USB camera of the specific embodiment of the invention;
Fig. 3 is the one-piece construction block diagram two of the POS barcode scanning payment system based on USB camera of the specific embodiment of the invention;
Fig. 4 is the schematic flow sheet of the POS barcode scanning payment system based on USB camera of embodiment.
Embodiment
By the technology contents of the present invention being described in detail, is realized object and effect, below in conjunction with enforcement mode and coordinate accompanying drawing to be explained.
The design of most critical of the present invention is: by light light intensity is converted into electrical signal, and compare with preset value, mends light to determine whether to open, it is achieved save energy, reduces costs.
Please refer to Fig. 1, the present invention provides a kind of POS barcode scanning payment procedure, comprising:
S1: obtain ambient light intensity, be converted to electrical parameter values, and calculate the mean value of described electrical parameter values;
S2: judge whether described mean value is less than Intensity threshold;
If then performing step S3: send benefit optical signal, control camera mends light; And return step S1;
Otherwise, then perform step S4: scanning barcode, and carry out barcode scanning payment.
Wherein, step S4 is specially:
S41: by camera collection bar code image frame sequence, and be sent to data decode module by USB;
S42: data decode module uses ZBar, is decoded by bar code image, pays to complete barcode scanning.
And before carrying out the method, in addition it is also necessary to according to practical situation, Intensity threshold is set.
Being different from prior art, the present invention is by being converted into electric signal parameter by ambient light intensity, and exports mean value, by judging the size of mean value and predetermined threshold value, it is determined whether need to mend light, and barcode scanning pays. By the way, the self-adaptation that the present invention can realize system mends light, on the basis not changing ambient condition, can effectively improve the quality of bar code image during ambient deficiency, significantly reduce costs, owing to present invention employs light compensating apparatus, camera is required lower, common analog or digital camera can be adopted.
Accordingly, the present invention also provides a kind of POS barcode scanning payment system, comprising:
Initial value module, for obtaining ambient light intensity, is converted to electrical parameter values, and calculates the mean value of described electrical parameter values;
Judge module, for judging whether described mean value is less than threshold value;
Illumination module, for receiving benefit optical signal, control camera mends light;
Barcode scanning module, for scanning barcode, and carries out barcode scanning payment.
Wherein, data decode module is also comprised; Barcode scanning module is by camera collection bar code image frame sequence, and is sent to data decode module by USB;
Data decode module uses ZBar, is decoded by bar code image, pays to complete barcode scanning.
Wherein, Intensity threshold module is also comprised, for setting Intensity threshold.
The present invention also provides a kind of POS barcode scanning to pay device, comprising: control module, illumination module, image-forming module and data decode module, wherein:
Control module also comprises: light intensity judging unit, signal light control unit and shooting switch control unit; Light intensity judging unit is electrically connected with signal light control unit, and light intensity judging unit, by detection ambient, judges whether to need to mend light to camera; Signal light control unit is electrically connected with illumination module, and when light intensity judging unit provides benefit optical signal, control illumination module is opened LED illumination lamp and mended light to camera by signal light control unit; Shooting switch control unit be electrically connected with image-forming module, and control module is opened the light control unit startup camera acquisition bar code image by shooting, and sends data decode module and decodes.
When barcode scanning, bar code and camera distance are 50��200mm; Camera field depth is 30��500mm. Described data decode module uses ZBar to decode.
For convenience of understanding, it is described below by way of a specific embodiment.
Fig. 1 is the schematic appearance of the payment device of the POS barcode scanning based on USB camera of the specific embodiment of the invention, and as shown in the figure, the present invention take USB as interface is the external scanner head of POS, replaces scanner.
Fig. 2 is the POS barcode scanning payment system based on USB camera of the embodiment of the present invention, as shown in the figure, system of the present invention comprises control module, illumination module, image-forming module and data decode module (can be integrated into the POS terminal possessing image processing algorithm storehouse, such as POS platform or fixing cashier etc.), wherein:
Control module comprises: light intensity judging unit, signal light control unit and shooting switch control unit. Light intensity judging unit is electrically connected with signal light control unit, and light intensity judging unit, by detection ambient, judges whether to need to mend light to camera; Signal light control unit is electrically connected with illumination module, and when light intensity judging unit provides benefit optical signal, control illumination module is opened LED illumination lamp and mended light to camera by signal light control unit; Shooting switch control unit be electrically connected with image-forming module, control module by shooting open the light control unit startup camera acquisition bar code image. Therefore, control module controls illumination module and image-forming module.
Specifically, image-forming module can be mended light unit by CMOS camera more than 300,000 pixels, illumination and form, and described control module is electrically connected with this module, controls camera collection bar code image frame sequence by trip switch; Or be connected with USB with POS terminal, gather bar code image frame sequence by POS terminal control switch. The illumination module mending light owing to present invention employs, the requirement of camera is lower, traditional analog or digital camera can be adopted, such as CMOS camera etc., and do not need expensive image-type camera;
Described illumination module is made up of series of LED head light, is electrically connected with control module, when control module sensor devices detects that ambient is not enough, opens LED illumination lamp and carries out described image-forming module mending light.
Described control module at least comprises light intensity judging unit and the signal light control unit for controlling illumination module, wherein:
Described light intensity judging unit is made up of some sensor devices, by the ambient received is converted to the current/voltage of certain intensity, judges current/voltage value whether in OK range, and decision-making carries out mending light the need of unlatching LED illumination lamp;
Described data decode module is electrically connected with image-forming module, and camera collection is to bar code image frame sequence, and taking such as USB as transmission path, the data decode module built-in with POS is connected, it is achieved the transmission of view data, by calling ZBar, it is achieved decoding.
Wherein, as shown in Figure 3, described POS terminal can be POS platform or fixing POS terminal etc., and itself and imaging system are that transmission path realizes transfer taking USB. POS terminal is provided with barcode scanning switch and onboard data decoder module, barcode scanning switch is used for being controlled to picture system acquisition bar code image frame sequence, camera collection is pushed to POS terminal to bar code image frame sequence by USB, POS terminal brings the bar code image received into onboard data decoder module, data decode module calculating bar code image contrast gradient and average gray value, whether in OK range, judge the image of exposure next frame of parameter adjustment with this. By the image call collected from grinding decoding software or other third parties authorize decoding software, realize decoding, otherwise the parameters such as adjustment camera time shutter, gain, if when exposure exceedes predetermined threshold value, ambient is described than stronger, now close LED light supplement lamp, again catch bar code image frame sequence.
Should be understood that, when exposure is too high, picture contrast is on the low side, average gray value is higher simultaneously, and when exposure is too low, picture contrast is on the low side, average gray value is also on the low side, thus can judge that whether bar code image exposure is suitable according to picture contrast and average gray value. When exposure is too high, shortening the camera time shutter, exposure is too low, then extend the camera time shutter.
Wherein, corresponding POS terminal, also can arrange server in embody rule of the present invention, and described server is used for completing to pay alternately with payment system end message.
The present invention is by light intensity judging unit, it is achieved self-adaptation light filling function, when compensate for ambient deficiency, the defect that bar code image brightness is inadequate, simultaneously, it is possible to when avoiding ambient sufficient, cross exposure phenomenon to what camera benefit light caused, effectively improve shooting light condition.
The present invention adopts common camera to be that POS transmits bar code image, and does not need additional configuration scanner, can effectively reduce costs. In addition, data decode module can adopt the code ZBar that increases income, it is achieved data decode module is to the decoding of bar code image, and POS barcode scanning payment system also more becomes handiness, greatly reduces the technology dependence that other produce business.
The present invention also provides the POS barcode scanning payment scheme of a kind of system described above: realize self-adaptation light filling function by light intensity judging unit, realize the automatic light-supplementing of system, use traditional camera to substitute scanner, it is that POS data decoder module transmits bar code sequence of image frames by USB.
As shown in Figure 4, it is the POS barcode scanning payment system schema based on USB camera of the embodiment of the present invention. The concrete implementation step of the embodiment of the present invention is as follows:
1. control module light intensity judging unit receives ambient, with opto-electronic conversion, luminous energy is converted to current/voltage;
2. calculate the current/voltage mean value that light intensity judging unit exports, judge whether calculation result is greater than the threshold value of setting, if it does, perform step S4; If, then not performing step S3;
3. control module signal light control unit provides benefit optical signal, opens LED illumination lamp, mends light to camera;
4. utilize described camera to obtain bar code image frame sequence;
5. by USB by camera collection to bar code image frame sequence be sent to the built-in data decode module of POS;
6. close LED illumination lamp;
7. data decode module uses Zbar to realize bar code image decoding;
8.POS machine completes barcode scanning and pays.
At this, step 4 being done one and supplements explanation, when POS carries out barcode scanning payment, bar code and camera distance are general at 50��200mm, for ensureing that the bar code image sharpness obtained and target are in the appropriate degree of entire image proportion, camera field depth should control at about 30��500mm.
In addition, data decode module we use the code ZBar that increases income to decode, but be not limited to ZBar, those skilled in the art can do some distortion on this basis and optimize.
As in POS terminal, POS terminal opens barcode scanning switch, camera time shutter, gain be set, whether open LED light supplement lamp correlation parameters such as (acquiescence are opened), then by USB, camera collection bar code image frame sequence being pushed to POS terminal, the bar code image received is brought into built-in data decode module and is decoded by POS terminal. If successfully decoded, POS terminal by decoding generate transaction number wait transaction information be sent to server carry out mutual communication complete pay, otherwise data decode module calculates bar code image contrast gradient and average gray value judges that bar code image is over-exposed or under-exposed, camera parameter is adjusted, such as the open and close etc. of time shutter, gain and LED light supplement lamp with this. By the camera Resurvey bar code image after adjustment parameter, it is pushed to POS terminal by USB, again decodes.
The method is specific as follows:
S1: POS terminal opens barcode scanning switch;
S2: camera time shutter, gain, the benefit light lamp whether correlation parameter such as unlatching is set;
S3: utilize described camera collection bar code image frame sequence to be pushed to POS terminal by USB;
S4: the bar code image received is brought into built-in data decode module and used decoding software to attempt decoding, successfully decoded by POS terminal, performs step S6, otherwise performs step S5;
S5: data decode module calculates the contrast gradient of bar code image and average gray value, according to these two value adjustment camera time shutter, gain and the LED light supplement lamp whether parameter such as unlatching, performs step S3;
S6: POS terminal by decoding generate transaction number wait transaction information be sent to server carry out mutual communication complete pay.
Coordinating decoding based on what the POS barcode scanning payment system of USB camera adopted traditional camera and POS onboard data decoder module, replacement scanner, effectively reduces costs and technology dependence. Meanwhile, the setting of light intensity judging unit, it is achieved the self-adaptation of system mends light, on the basis not changing ambient condition, can effectively improve the quality of bar code image during ambient deficiency, significantly reduce costs.
The foregoing is only embodiments of the invention; not thereby the patent scope of the present invention is limited; every equivalents utilizing specification sheets of the present invention and accompanying drawing content to do, or directly or indirectly it is used in relevant technical field, all it is included in the scope of patent protection of the present invention with reason.
Claims (10)
1. a POS barcode scanning payment procedure, it is characterised in that, comprising:
S1: obtain ambient light intensity, be converted to electrical parameter values, and calculate the mean value of described electrical parameter values;
S2: judge whether described mean value is less than Intensity threshold;
If then performing step S3: send benefit optical signal, control camera mends light; And return step S1;
Otherwise, then perform step S4: scanning barcode, and carry out barcode scanning payment.
2. POS barcode scanning payment procedure according to claim 1, it is characterised in that, step S4 is specially:
S41: by camera collection bar code image frame sequence, and be sent to data decode module by USB;
S42: data decode module uses ZBar, is decoded by bar code image, pays to complete barcode scanning.
3. POS barcode scanning payment procedure according to claim 1, it is characterised in that, also comprise: Intensity threshold is set.
4. a POS barcode scanning payment system, it is characterised in that, comprising:
Initial value module, for obtaining ambient light intensity, is converted to electrical parameter values, and calculates the mean value of described electrical parameter values;
Judge module, for judging whether described mean value is less than threshold value;
Illumination module, for receiving benefit optical signal, control camera mends light;
Barcode scanning module, for scanning barcode, and carries out barcode scanning payment.
5. POS barcode scanning payment system according to claim 4, it is characterised in that, also comprise data decode module; Wherein:
Barcode scanning module is by camera collection bar code image frame sequence, and is sent to data decode module by USB;
Data decode module uses ZBar, is decoded by bar code image, pays to complete barcode scanning.
6. POS barcode scanning payment system according to claim 4, it is characterised in that, also comprise Intensity threshold module, for setting Intensity threshold.
7. a POS barcode scanning pays device, it is characterised in that, comprising: control module, illumination module, image-forming module and data decode module, wherein:
Control module also comprises: light intensity judging unit, signal light control unit and shooting switch control unit; Light intensity judging unit is electrically connected with signal light control unit, and light intensity judging unit, by detection ambient, judges whether to need to mend light to camera; Signal light control unit is electrically connected with illumination module, and when light intensity judging unit provides benefit optical signal, control illumination module is opened LED illumination lamp and mended light to camera by signal light control unit; Shooting switch control unit be electrically connected with image-forming module, and control module is opened the light control unit startup camera acquisition bar code image by shooting, and sends data decode module and decodes.
8. POS barcode scanning according to claim 7 pays device, it is characterised in that, when barcode scanning, bar code and camera distance are 50��200mm.
9. POS barcode scanning according to claim 7 pays device, it is characterised in that, camera field depth is 30��500mm.
10. POS barcode scanning according to claim 7 pays device, it is characterised in that, described data decode module uses ZBar to decode.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511022567.XA CN105654633A (en) | 2015-12-30 | 2015-12-30 | POS code scanning payment method, system and device |
| PCT/CN2016/092078 WO2017113777A1 (en) | 2015-12-30 | 2016-07-28 | Barcode scanning payment method, system and device of pos terminal |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201511022567.XA CN105654633A (en) | 2015-12-30 | 2015-12-30 | POS code scanning payment method, system and device |
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| CN105654633A true CN105654633A (en) | 2016-06-08 |
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| CN201511022567.XA Pending CN105654633A (en) | 2015-12-30 | 2015-12-30 | POS code scanning payment method, system and device |
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| WO (1) | WO2017113777A1 (en) |
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