CN104680110A - Method for learning optimized bar code scanning parameters of bar code reader and bar code reader - Google Patents
Method for learning optimized bar code scanning parameters of bar code reader and bar code reader Download PDFInfo
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Abstract
A method for learning the optimal scan parameters of bar code reader features that multiple light-emitting elements are used to generate light source according to the predefined parameters and project it to the target bar code, and an image acquisition unit is used to acquire the image of the target bar code. The image is sampled and decoded to obtain a plurality of scanning parameters, and one optimal scanning parameter is selected from the plurality of scanning parameters and stored in a scanning parameter memory device to be used as a preset scanning parameter when the bar code reader scans the bar code of the target. The method for learning the optimized bar code scanning parameters of the bar code reader can quickly and accurately read the bar code to obtain the bar code information, thereby really improving the overall operation efficiency.
Description
Technical field
The present invention relates to a kind of method of work of bar code reader, particularly the method to set up of the bar code scan parameter of bar code reader.
Background technology
Bar code is widely used in business activity now, particularly needs industrial applications article being carried out to beacon information, transmission information efficiently extensive at hi-tech industry, storage forwarding business, wholesale and retail industry etc.
Because bar code can mark the information such as the producing country of article, manufacturing firm, trade name, date of manufacture, book classification number, mail start-stop place, classification, date, be thus obtained in many fields such as commodity circulation, taking care of books, postal management, banking systems and apply widely.
In conventional art, dealer's foundation commodity different choice bar code is also sticked in article surface or packaging, but when actual operation, this type of bar code easily causes the factors such as surface abrasion to affect reader and reads unsuccessfully, also need to expend the more time.
Dealer, in order to solve this problem, therefore designs and bar code is directly printed on article outward appearance, especially more often uses this mode with fields such as metal species, semiconductor, Medical Devices, airplane parts and laser printing.Although this one is designed with its advantage, the bar code that bar code will compile out according to certain rule converts significant message to, needs experience scanning and decode procedure.The color of object is determined by the type of its reflected light, and white object can reflect the visible ray of various wavelength, and black object then absorbs the visible ray of various wavelength.So, after the light sent when barcode scanner light source reflects in bar code, reflected light is irradiated on the photoelectric commutator of barcode scanner inside, the reflected light signal that photoelectric commutator is different according to power, convert corresponding electric signal to, also illustrate that general used bar code reader easily produces every article because of appearance color, material, all differences of reflective degree, and then affect bar code reader and cannot obtain bar code information smoothly.
Therefore, color, material, surface flatness, the light reflection of object surface ... all can impact in scanning reading target bar code barcode scanner etc. factor.How to solve the deficiency of above-mentioned technology, be engaged in the industry be correlated with dealer desire most ardently the problem of research and development.
Summary of the invention
Therefore, in order to solve the problem, the invention provides a kind of optimization bar code scan parametric learning method of bar code reader, to make the scanning operation enhancing efficiency of bar code, to improve in conventional practice because bar code is directly printed on article outward appearance, but because of color, material, surface flatness, the light reflection of object surface ... the problem of bar code reader bar code reading information is affected etc. factor.
The technical solution used in the present invention is as follows:
A kind of optimization bar code scan parametric learning method of bar code reader, , with a bar code reader, one optimum scanning parameter is obtained to the target bar code study that one is attached to an object surface, as the default sweep parameter of described bar code reader when scanning described target bar code, the color of described object surface, material, surface flatness, one of light reflection forms an object context parameter of described target bar code, multiple light-emitting component is included in described bar code reader, one image acquisition device, one processing unit, one scan parameter memory apparatus, one Decode engine, , wherein said image acquisition device and described sweep parameter memory storage are connected to described processing unit, described learning method comprises the following steps:
A () is chosen one of described multiple light-emitting component and is produced light source projects to described target bar code with the luminous parameters of a setting;
B () gathers the image of described target bar code with described image acquisition device;
C () described light-emitting component is under the luminous parameters of setting and the condition of described object context parameter, described processing unit samples described image and carries out decoding by described Decode engine, to obtain the one scan parameter of described target bar code;
D () repeats step (a) ~ (c), choose described multiple light-emitting component seriatim and produce this light source projects to described target bar code, so that described in each, light-emitting component is under the luminous parameters of this setting and the condition of described object context parameter respectively, sampling decoding obtains multiple sweep parameter;
E () selects a wherein optimum scanning parameter in described multiple sweep parameter;
F described optimum scanning parameter is stored in described sweep parameter memory storage by (), as the default sweep parameter of described bar code reader when scanning described target bar code.
One bar code reader is obtained an optimum scanning parameter to the target bar code study that one is attached to an object surface by the technical program, using this optimal parameter as this bar code reader scan this target bar code time default sweep parameter, one of the color, material, surface flatness, light reflection of this object surface form an object context parameter of this target bar code, utilize the device such as the multiple light-emitting components in bar code reader, image acquisition device, processing unit, sweep parameter memory, a kind of optimization bar code scan parametric learning method of bar code reader can be obtained.
And the optimization bar code scan parametric learning method of bar code reader produces light source projects to this target bar code with one of multiple light-emitting component with the luminous parameters of a setting, after the image reading this target bar code, sampling decoding is carried out to this image, to obtain multiple sweep parameter, finally in the plurality of sweep parameter, select a wherein optimum scanning parameter, as the default sweep parameter of this bar code reader when scanning this target bar code.
Further preferably, wherein the light-emitting component of the plurality of different luminous parameters comprises the three primary colors light-emitting component that can send different colours.
Further preferably, a color mixing light source projection is obtained after the primary colors that wherein this three primary colors light-emitting component sends with the primary colors light-emitting component of more than at least two is simultaneously mixed to this target bar code.
Further preferably, the single primary lights that wherein this three primary colors light-emitting component sends with one of them primary colors light-emitting component projects to this target bar code.
Further preferably, wherein the light-emitting component of the plurality of different luminous parameters comprises the light-emitting component that can send different color range.
Further preferably, wherein the light-emitting component of the plurality of different luminous parameters comprises the light-emitting component that can send different brightness.
Further preferably, wherein this bar code reader is more provided with a mode of learning and opens beginning key, is connected to this processing unit, this mode of learning open beginning key pressurized press operation time, open the step beginning to perform optimization bar code scan parametric learning method, to obtain this optimum scanning parameter.
A kind of bar code reader, is characterized in that, comprising:
Multiple light-emitting component, produces light source projects to described target bar code with the luminous parameters of a setting;
One image acquisition device, gathers the image of described target bar code;
One Decode engine, for carrying out sampling decoding to described image;
One scan parameter memory apparatus, for memory scanning parameter;
One processing unit, is connected with described light-emitting component, described image acquisition device, described Decode engine and described sweep parameter memory storage respectively;
Described processing unit produces light source projects to described target bar code for choosing at least one light-emitting component described with the luminous parameters of a setting; And send to described Decode engine to carry out sampling decoding the barcode image that described image acquisition device gathers; Judge optimum scanning parameter afterwards and be stored in institute's sweep parameter memory storage.
Technique effect of the present invention is:
The bar code reader adopting the inventive method scans with optimization bar code scan parameter, therefore color, material, surface flatness, the light reflection of object surface can be got rid of ... etc. influence factor, fast and precisely obtain bar code information, really overall operation usefulness can be promoted to make the reading of bar code.
The present invention is particularly suitable for the bar code scan occasion of similar item in batch.When scanning certain concrete object first, first carry out learning procedure, obtain optimum scanning parameter, the same object of follow up scan then can greatly improve efficiency.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail:
Fig. 1 is the circuit function schematic diagram of the optimization bar code scan parameter learning device of bar code reader of the present invention.
Fig. 2 is process flow diagram of the present invention.
Fig. 3 learns by Different Light parameter the correspondence table of the different scanning parameter obtained.
Description of reference numerals:
100 bar code readers, 11,12,13 light-emitting components, 2 image acquisition devices, 21 image processing interfaces, 3 processing units, 4 luminous parameters, 5 decoding engines, 6 sweep parameter memory storages, 7 modes of learning open beginning key, A object surface, C target bar code, C1 image, C2 object context parameter, C3 bar code information, L1, L2, L3 light source, R, R1, R2, G, G1, G2, B, B1, B2, R+G, R+B, G+B, R+G+B light source parameters
M, M1, M2, M3...M13 sweep parameter
S11, S12, S13 light-emitting component control line
Embodiment
In order to be illustrated more clearly in the embodiment of the present invention 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, the accompanying drawing in the following describes is only some embodiments of the present invention.
Refer to shown in Fig. 1, it is the circuit function schematic diagram of the optimization bar code scan parameter learning device of bar code reader of the present invention.As shown in the figure, bar code reader 100 in the present invention includes multiple light-emitting component 11,12, a 13 and image acquisition device 2, wherein this light-emitting component 11,12,13 is connected to a processing unit 3 via light-emitting component control line S11, S12, S13, and this image acquisition device 2 is connected to this processing unit 3 via an image processing interface 21.
Under the control of processing unit 3, processing unit 3 can be chosen one of the plurality of light-emitting component 11,12,13 seriatim via light-emitting component control line S11, S12, S13 and produce with the luminous parameters 4 of a setting light source L1, L2, L3 projection to be attached to object surface A target bar code B to one.
Image acquisition device 2 can gather the image C1 of this target bar code C.Gather the image C1 of this target bar code C at this image acquisition device 2 while, under the different condition situation such as color, material, surface flatness, light reflection of object surface A, can have influence on the collection image of this image acquisition device 2, therefore one of the color of this object surface 1, material, surface flatness, light reflection degree form an object context parameter C2 of this target bar code C.
The bar code information C3 that this image C1 produces numerical digit pattern after image processing is carried out at image processing interface 21 delivers to processing unit 3, then carries out decoding by decoding engine 5 to the bar code information C3 of this numerical digit pattern.
Processing unit 3 is also connected with one scan parameter memory apparatus 6.This sweep parameter memory storage 6 can be used to store sweep parameter M, and stores optimum scanning parameter after selecting optimum scanning parameter.Optimum scanning parameter is as the follow-up default sweep parameter when scanning this target bar code C of this bar code reader 100.
Processing unit 3 is separately connected with a mode of learning and opens beginning key 7, this mode of learning open beginning key 7 pressurized press operation time, can open begin perform bar code reader 100 of the present invention enter mode of learning, to obtain this optimum scanning parameter.
The target bar code C study that can be attached to an object surface 1 to one by bar code reader 100 of the present invention obtains an optimum scanning parameter, as the follow-up default sweep parameter when scanning this target bar code C of this bar code reader 100.
Fig. 2 is process flow diagram of the present invention, hereby coordinates shown in Fig. 1, is described flow process of the present invention.First, in bar code reader, configure multiple light-emitting component, an image acquisition device, a processing unit, one scan parameter memory apparatus (step 101).
When a mode of learning being connected to processing unit open beginning key pressurized press operation time, bar code reader of the present invention can be made to enter mode of learning (step 102).After entering mode of learning, under the control of processing unit, first choose one of the plurality of light-emitting component and produce light source projects to this target bar code (step 103) with the luminous parameters of a setting, gather the image (step 104) of this target bar code simultaneously with image acquisition device.
Next, light-emitting component is under the luminous parameters of this setting and the condition of this object context parameter, processing unit samples this image and carries out decoding by Decode engine, to obtain the one scan parameter (step 105) of this target bar code, this sweep parameter is stored in sweep parameter memory storage temporarily;
With above-mentioned sequence step, choose the plurality of light-emitting component seriatim and produce this light source projects to this target bar code, with respectively at each this light-emitting component under the luminous parameters of this setting and the condition of this object context parameter, sampling decoding obtains multiple sweep parameter (step 106), until complete the sampling decoding of all light-emitting components.
Through above program, can under the impact of different light source parameters and object context parameter B2, study obtains different sweep parameters.Consult shown in Fig. 3 simultaneously, such as:
Under the condition of light source parameters R (representing that light-emitting component 11 sends red light), image obtains one scan parameter M1 after sampling decoding;
Under the condition of light source parameters R1 (represent that light-emitting component 11 sends red light, but color range being different), image obtains one scan parameter M2 after sampling decoding;
Under the condition of light source parameters R2 (represent that light-emitting component 11 sends red light, but brightness being different), image obtains one scan parameter M3 after sampling decoding;
Under the condition of light source parameters G (representing that light-emitting component 12 sends green light), image obtains one scan parameter M4 after sampling decoding;
Under the condition of light source parameters G1 (represent that light-emitting component 12 sends green light, but color range being different), image obtains one scan parameter M5 after sampling decoding;
Under the condition of light source parameters G2 (represent that light-emitting component 12 sends green light, but brightness being different), image obtains one scan parameter M6 after sampling decoding;
Under the condition of light source parameters B (representing that light-emitting component 13 sends blue light), image obtains one scan parameter M7 after sampling decoding;
Under the condition of light source parameters B1 (represent that light-emitting component 13 sends blue light, but color range being different), image obtains one scan parameter M8 after sampling decoding;
Under the condition of light source parameters B2 (represent that light-emitting component 13 sends blue light, but brightness being different), image obtains one scan parameter M9 after sampling decoding;
Under the condition of light source parameters R+G (represent that light-emitting component 11 sends red light, light-emitting component 12 sends green light simultaneously), image obtains one scan parameter M10 after sampling decoding;
Under the condition of light source parameters R+B (represent that light-emitting component 11 sends red light, light-emitting component 13 sends blue light simultaneously), image obtains one scan parameter M11 after sampling decoding;
Under the condition of light source parameters G+B (represent that light-emitting component 12 sends green light, light-emitting component 13 sends blue light simultaneously), image obtains one scan parameter M12 after sampling decoding;
Under the condition of light source parameters R+G+B (representing that light-emitting component 11 sends red light, light-emitting component 12 sends green light, light-emitting component 13 sends blue light), image obtains one scan parameter M13 after sampling decoding.
After the sampling decoding completing all light-emitting components (step 107), a wherein optimum scanning parameter (step 108) can be selected in the plurality of sweep parameter, and this optimum scanning parameter is stored in this sweep parameter memory storage, as the default sweep parameter (step 109) of this bar code reader when scanning this target bar code.The system of selection of optimum scanning parameter can be for best the maximum person of unit interval (such as a second) successful decoded number.Such as, above-mentioned M10 successful decoded number within a second more than other, then selects M10 to be optimum scanning parameter.
Above embodiment is only illustrative the present invention design, but not for limiting the present invention.Any those skilled in the art all under structural design of the present invention and spirit, can modify to above-described embodiment and change, and these changes still belong in spirit of the present invention and following defined the scope of the claims.
Claims (9)
1. the optimization bar code scan parametric learning method of a bar code reader, , with a bar code reader, one optimum scanning parameter is obtained to the target bar code study that one is attached to an object surface, as the default sweep parameter of described bar code reader when scanning described target bar code, the color of described object surface, material, surface flatness, one of light reflection forms an object context parameter of described target bar code, multiple light-emitting component is included in described bar code reader, one image acquisition device, one processing unit, one scan parameter memory apparatus, one Decode engine, wherein said image acquisition device and described sweep parameter memory storage are connected to described processing unit, described learning method comprises the following steps:
A () is chosen one of described multiple light-emitting component and is produced light source projects to described target bar code with the luminous parameters of a setting;
B () gathers the image of described target bar code with described image acquisition device;
C () described light-emitting component is under the luminous parameters of setting and the condition of described object context parameter, described processing unit samples described image and carries out decoding by described Decode engine, to obtain the one scan parameter of described target bar code;
D () repeats step (a) ~ (c), choose described multiple light-emitting component seriatim and produce this light source projects to described target bar code, so that described in each, light-emitting component is under the luminous parameters of this setting and the condition of described object context parameter respectively, sampling decoding obtains multiple sweep parameter;
E () selects a wherein optimum scanning parameter in described multiple sweep parameter;
F described optimum scanning parameter is stored in described sweep parameter memory storage by (), as the default sweep parameter of described bar code reader when scanning described target bar code.
2. the optimization bar code scan parametric learning method of bar code reader as claimed in claim 1, the light-emitting component of wherein said multiple different luminous parameters comprises the three primary colors light-emitting component that can send different colours.
3. the optimization bar code scan parametric learning method of bar code reader as claimed in claim 1, the light-emitting component of wherein said multiple different luminous parameters comprises the light-emitting component that can send different color range.
4. the optimization bar code scan parametric learning method of bar code reader as claimed in claim 1, the light-emitting component of wherein said multiple different luminous parameters comprises the light-emitting component that can send different brightness.
5. the optimization bar code scan parametric learning method of bar code reader as claimed in claim 1, wherein said bar code reader is more provided with a mode of learning and opens beginning key, be connected to described processing unit, described mode of learning open beginning key pressurized press operation time, open and begin to perform step (a) ~ (e), to obtain described optimum scanning parameter.
6. the optimization bar code scan parametric learning method of bar code reader as claimed in claim 2, obtains a color mixing light source projection to described target bar code after the primary colors that wherein said three primary colors light-emitting component sends with the primary colors light-emitting component of more than at least two is simultaneously mixed.
7. the optimization bar code scan parametric learning method of bar code reader as claimed in claim 2, the single primary lights that wherein said three primary colors light-emitting component sends with one of them primary colors light-emitting component projects to described target bar code.
8. a bar code reader, is characterized in that, comprising:
Multiple light-emitting component, produces light source projects to described target bar code with the luminous parameters of a setting;
One image acquisition device, gathers the image of described target bar code;
One Decode engine, for carrying out sampling decoding to described image;
One scan parameter memory apparatus, for memory scanning parameter;
One processing unit, is connected with described light-emitting component, described image acquisition device, described Decode engine and described sweep parameter memory storage respectively;
Described processing unit produces light source projects to described target bar code for choosing at least one light-emitting component described with the luminous parameters of a setting; And send to described Decode engine to carry out sampling decoding the barcode image that described image acquisition device gathers; Judge optimum scanning parameter afterwards and be stored in institute's sweep parameter memory storage.
9. a bar code reader as claimed in claim 8, is characterized in that, also comprises a mode of learning and opens beginning key, be connected to described processing unit, described mode of learning open beginning key pressurized press operation time, perform learning procedure, obtain described optimum scanning parameter.
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| TW103122962 | 2014-07-03 | ||
| TW103122962A TW201602917A (en) | 2014-07-03 | 2014-07-03 | Optimized barcode scanning parameter learning method of barcode reader |
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Cited By (3)
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| CN109784113A (en) * | 2018-12-17 | 2019-05-21 | 深圳盈达信息科技有限公司 | Scanning means and its barcode scanning method |
| CN110472455A (en) * | 2019-08-16 | 2019-11-19 | 广州南沙珠江啤酒有限公司 | A kind of two-dimensional code scanning method and system based on background color identification |
| US10534942B1 (en) | 2018-08-23 | 2020-01-14 | Zebra Technologies Corporation | Method and apparatus for calibrating a client computing device for decoding symbols |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| TWI623882B (en) * | 2016-07-26 | 2018-05-11 | 佳世達科技股份有限公司 | Barcode capturing method and barcode reader |
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Also Published As
| Publication number | Publication date |
|---|---|
| TW201602917A (en) | 2016-01-16 |
| TWI529629B (en) | 2016-04-11 |
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Application publication date: 20150603 |