CN1836242A - 2-dimensional code formation method and formation device - Google Patents

2-dimensional code formation method and formation device Download PDF

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Publication number
CN1836242A
CN1836242A CNA2004800229922A CN200480022992A CN1836242A CN 1836242 A CN1836242 A CN 1836242A CN A2004800229922 A CNA2004800229922 A CN A2004800229922A CN 200480022992 A CN200480022992 A CN 200480022992A CN 1836242 A CN1836242 A CN 1836242A
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China
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bar code
dimensional bar
cell
information
size
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CN100378740C (en
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佐藤一男
加藤光良
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Ley KK
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Technology Transfer Service Corp
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P90/00Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
    • Y02P90/02Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P90/00Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
    • Y02P90/30Computing systems specially adapted for manufacturing

Abstract

A 2-dimensional code formation method includes: a step of specifying the code size of a 2-dimensional code; a step of specifying storage information which is written into the 2-dimensional code; a step of deciding the cell size of a unit cell constituting the 2-dimensional code; a step of specifying the step size or the number of dots arranged vertically and horizontally n x m (n and m are natural numbers) within the unit cell; a step of generating laser marking information according to the code size, the storage information, the cell size, the step size or the number of dots; and a step of laser-marking the 2-dimensional code according to the laser marking information.

Description

The formation method of two-dimensional bar code and formation device
Technical field
The present invention relates to formation method and formation device according to the two-dimensional bar code of laser labelling formation.Particularly relate to and be applicable to single product, assemble a plurality of parts and electronics/electric apparatus, machinery, vehicle, the dwelling house member made, contain these parts all products tracing management two-dimensional bar code the formation method and form device.
Background technology
When carrying out product quality management, parts of Shi Yonging and raw-material qualitative data in process of production, adjustment data when perhaps adjusting working condition such as temperature, time, size and adjusting product, the production process information such as inspection data when checking product manage by the database of product manufacturer.
In order to obtain the production process information of each product that is recorded in this database, on product, enclose production code member.For example on products such as electric apparatus, be equipped with nameplate, on this nameplate, be printed on trade name, name of product, production code member (sequence number) etc.
And, behind the product export, as come from the user that buys this product about the inquiry of product quality the time, just can obtain and provide the production process information of this product according to producing searching database such as numbering grade.
Simultaneously, after being amounted to, the flame of product, claim information etc. feeds back to exploitation, production division, just can be in production run with these message reflections, and the production of defective products prevented trouble before it happens.
In addition, following technology is known to the public, this technology is without accessing database, but production process information is changed into two-dimensional bar code, be attached to or be attached to label of being printed with the two-dimensional bar code that has transformed etc. on the product, can directly obtain production process information (for example, with reference to TOHKEMY 2003-140726 communique) from this two-dimensional bar code.
But, by aforesaid production process information is stored in the method for database or two-dimensional bar code, even can obtain the production process information of product, but can't obtain to constitute the production process information of each parts of product.
Therefore, even from information such as the flame of product, claim, infer bad parts, but also can't obtain the production process information of these bad parts.Perhaps, need spended time, therefore can't avoid the production of bad product effectively, perhaps need to spend the plenty of time just can avoid the production of this bad product owing to obtain the production process information of bad parts.In addition, the inquiry of answer consumer's relevant product quality or claim also need to spend many times.
And the variation of barcode size takes place in two-dimensional bar code according to quantity of information.For example, cell is of a size of 1mm, and the data of bar codeization are under the situation of " 01234 ", and the two-dimensional bar code of generation is shown in Figure 29 (A).Two-dimensional bar code shown in Figure 29 (A) is vertical 10 cells * horizontal 10 cells, the whole 10mm * 10mm that is of a size of.On the other hand, the data of bar codeization are under the situation of " 0123456789 ", and the two-dimensional bar code of generation is shown in Figure 29 (B).Two-dimensional bar code shown in Figure 29 (B) is vertical 12 cells * horizontal 12 cells, the whole 12mm * 12mm that is of a size of.So, change in size takes place according to the canned data amount in two-dimensional bar code.
For with the different data of identical dimension mark, there is following technical proposals: specify barcode size just can form the two-dimensional bar code (for example, with reference to Japanese kokai publication hei 11-167602 communique) of desired size when initial.
But, in the technology of above-mentioned patent documentation 1, for cell, owing to carry out control action that laser labelling the produces laser aid complicated problems that becomes with spiral helicine drawing as secret note.In addition, though, still,, require to carry out the laser controlling action of pinpoint accuracy in order to form specified size owing to carry out spiral helicine laser decorated fire according to specifying barcode size can form the two-dimensional bar code of desired size.In addition, make that owing to carry out laser labelling with spiral helicine drawing forming extremely trickle two-dimensional bar code seems more difficult.
Summary of the invention
At the problems referred to above, the object of the present invention is to provide a kind of formation method of two-dimensional bar code and form device, no matter deposited in the number of the quantity of information such as literal, image of two-dimensional bar code, can simple device construction and pinpoint accuracy ground forms the two-dimensional bar code of desired size.
In addition, the present invention also aims to provide a kind of formation method of two-dimensional bar code and form device, on each parts of single product or formation product, adhere to two-dimensional bar code, and make this two-dimensional bar code be reflected in production run, thereby can avoid the production of bad product effectively, and can tackle the inquiry and the claim of the relevant quality problems of consumer rapidly.
Can realize purpose of the present invention by the formation method of the related two-dimensional bar code of right request of the present invention 1.This formation method comprises the steps: to specify the barcode size of two-dimensional bar code; Appointment is deposited in the canned data of above-mentioned two-dimensional bar code, sets the cell size of each cell that constitutes above-mentioned two-dimensional bar code; Specify the step-length or the round dot number of the round dot of arranging in length and breadth with n * n or m * n in the above-mentioned cell; Generate laser labelling information based on above-mentioned barcode size, canned data, cell size, step-length or round dot number; Based on this laser labelling information laser labelling two-dimensional bar code.
The cell size of above-mentioned each cell also can change according to above-mentioned barcode size and canned data.
In addition, the cell size of above-mentioned each cell also can be calculated based on predetermined cell number.
According to the formation method of two-dimensional bar code of the present invention, according to the barcode size of appointment and specified message and the size of setup unit lattice, no matter the size of quantity of information can form the two-dimensional bar code of having specified size in view of the above.And, in the formation method of two-dimensional bar code of the present invention,, should be divided into the grid of capable n row of n or the capable n row of m by the cell of laser labelling according to the step-length and the round dot number of appointment, in this grid, use the laser labelling round dot.So, owing to carry out the laser labelling of cell, thereby prevented that mark part from exposing or produce marked erroneous such as blank parts to about marked region by the round dot mark.And then the change by the cell size can be in the information of the different sizes of onesize two-dimensional bar code stored, no matter and the area size at mark position desired information can be carried out mark with two-dimensional bar code.And owing to carried out laser labelling with round dot, 1 round dot of 1 cell for example then can form the two-dimensional bar code of very small dimensions.
In addition, owing to the size of having unified to constitute the cell of two-dimensional bar code by designating unit lattice size and cell number, so reader can read by the cell information of carrying out that reads the same size size.
And the formation method of two-dimensional bar code of the present invention is the method that forms two-dimensional bar code on the product that is made of single or a plurality of parts, and it has following feature: the production process information obtaining step that possesses the production process information of obtaining relevant above-mentioned parts; The data conversion that will contain the identification number of specific above-mentioned parts production process information or contain production process information itself is the two-dimensional bar code step of converting of two-dimensional bar code; Parameter setting step according to the two-dimensional bar code size after the above-mentioned component settings conversion; On above-mentioned parts, directly set the laser labelling step of the two-dimensional bar code of size with laser labelling by the laser marking instrument.
So, relevant to product single or that form by a plurality of component-assembled, obtain the production process information of relevant its component parts, after the data conversion that will contain the identification number of specific above-mentioned parts production process information or contain production process information itself is two-dimensional bar code, size according to this two-dimensional bar code of component settings, by laser marking instrument direct this two-dimensional bar code of having set on parts with laser labelling, the component-assembled of mark is produced product, therefore if product produces undesirable condition, and, then can know identification number by reading the two-dimensional bar code that is attached on the bad parts with bad parts qualification.
Can obtain production process information by this identification number.And, contain the two-dimensional bar code of the bulk information of relevant starting material, working condition, crudy by mark, need not to obtain the production process information of being deposited by note in addition just can directly be tackled relevant quality problems rapidly by reading this two-dimensional bar code inquiry and claim.
And, owing on parts, sets two-dimensional bar code according to component sizes etc., no matter so the size of parts can the mark two-dimensional bar code.At the two-dimensional bar code of the component settings very small dimensions of the very small dimensions row labels of going forward side by side, freely set the size of two-dimensional bar code and carry out mark at the parts of very big size, then can the mark two-dimensional bar code on nearly all parts, and can obtain production process information by this two-dimensional bar code.
In addition, contain the two-dimensional bar code of the bulk information of relevant starting material, working condition, crudy by mark, need not to obtain the production process information of being deposited by note in addition just can directly be tackled relevant quality problems rapidly by reading this two-dimensional bar code inquiry and claim.
And, in above-mentioned laser labelling step, according to the size of setting the two-dimensional bar code of setting in the step at above-mentioned parameter, each cell that the round dot that can form by the irradiation by laser beam is arranged in length and breadth with n * m (n, m are natural number), by the Continuous irradiation of laser beam and extrusion becomes each rectangular-shaped cell, perhaps form by the Continuous irradiation of laser beam in each cell of area-encasing rectangle shape any one and form above-mentioned two-dimensional bar code.
So, can carry out the mark of two-dimensional bar code by various means.Particularly, in the mark that depends on round dot to carry out (so-called round dot mark), by the arrangement in length and breadth of the round dot in the cell, can form the cell of the even degree of depth, thereby can improve the degree of accuracy that reads of two-dimensional bar code.
And, in above-mentioned laser labelling step, best read the above-mentioned two-dimensional bar code behind the laser labelling and determine that whether above-mentioned two-dimensional bar code is by the step of correct labeling for also comprising.
The device of realizing the formation method of above-mentioned two-dimensional bar code has following feature: possess the barcode size of obtaining two-dimensional bar code, the canned data that is deposited in above-mentioned two-dimensional bar code and the step-length of the round dot arranged in length and breadth with n * m (n, m are natural number) in each cell that constitutes above-mentioned two-dimensional bar code and the information of round dot number are obtained function; Carry out the cell size calculation processing of above-mentioned each cell according to above-mentioned barcode size and canned data, carry out the calculation function of the generation processing of laser labelling information according to above-mentioned barcode size, canned data, cell size, step-length or round dot number; Two-dimensional bar code is carried out the laser labelling function of laser labelling according to above-mentioned laser labelling information.
In above-mentioned calculation function, carry out the change of the cell size of above-mentioned each cell handles according to the modification information that obtains the above-mentioned canned data that function obtains by above-mentioned information, when even change takes place in canned data, by changing the cell size of each cell, also can form onesize two-dimensional bar code.
In addition, above-mentioned calculation function is to handle according to the generation that the modification information that obtains above-mentioned step-length that function obtains or round dot number by above-mentioned information carries out different laser labelling information.
And the formation device of two-dimensional bar code possesses following feature: possess the barcode size of obtaining two-dimensional bar code, the canned data that is deposited in above-mentioned two-dimensional bar code, constitute the step-length of the cell number of each cell of above-mentioned two-dimensional bar code, the round dot arranged in length and breadth with n * m (n, m are natural number) or the information of round dot number is obtained function in each cell that constitutes above-mentioned two-dimensional bar code; Carry out the processing of cell size calculation according to above-mentioned barcode size and cell number, carry out the calculation function of the generation processing of laser labelling information according to above-mentioned barcode size, canned data, cell size, step-length or round dot number; Two-dimensional bar code is carried out the laser labelling function of laser labelling according to above-mentioned laser labelling information.
At this moment, above-mentioned calculation function is to handle according to the change that the modification information that obtains the said units lattice number that function obtains by above-mentioned information carries out the cell size of above-mentioned each cell, when even change takes place in the cell number, by changing the cell size of each cell, also can form onesize two-dimensional bar code.
In addition, in above-mentioned calculation function, carry out the generation of different laser labelling information according to the modification information that obtains above-mentioned step-length that function obtains or round dot number by above-mentioned information and handle, and when change takes place for step-length and round dot number, form the two-dimensional bar code of variable concentrations.
And, it is the device that forms two-dimensional bar code on the product that is made of single or a plurality of parts that two-dimensional bar code of the present invention forms device, it possesses following feature: the function that possesses the production process information of obtaining relevant product slate parts, deposit the function of the production process information of being obtained in, the data conversion that will contain the identification number of specific above-mentioned production process information or contain production process information itself is the function of two-dimensional bar code, according to the size of the two-dimensional bar code of setting according to parts directly on parts with the function of laser labelling two-dimensional bar code.
Description of drawings
Fig. 1 is the key diagram of all structures that expression relates to the laser marking device of a kind of embodiment of the present invention.
Fig. 2 is the key diagram of structure that expression relates to the laser marking instrument of a kind of embodiment of the present invention.
Fig. 3 is the key diagram of an example of expression two-dimensional bar code.
Fig. 4 is the key diagram of an example of expression two-dimensional bar code.
The key diagram of the cell of Fig. 5 after by the round dot mark.
The key diagram of the cell of Fig. 6 after by the vector mark.
The key diagram of the cell of Fig. 7 after by the round dot mark.
The key diagram of the cell of Fig. 8 after by the vector mark.
Fig. 9 is the key diagram of the information that is encoded in the two-dimensional bar code.
Figure 10 represents the key diagram of an example of the two-dimensional bar code that forms according to the information that is transfused to.
Figure 11 is the identical and key diagram of the two-dimensional bar code that the cell number is different with canned data of expression barcode size.
Figure 12 is the identical and key diagram of the two-dimensional bar code that the cell number is different with canned data of expression barcode size.
Figure 13 is expression barcode size and the key diagram of two-dimensional bar code that cell number different identical with canned data.
The process flow diagram of Figure 14 treatment scheme that to be expression set for the input that forms two-dimensional bar code.
The process flow diagram of Figure 15 treatment scheme that to be expression set for the input that forms two-dimensional bar code.
Figure 16 is an example of picture is imported in expression for the information that forms two-dimensional bar code a key diagram.
Figure 17 is the key diagram of an example of the affirmation picture of the established two-dimensional bar code of expression.
Figure 18 is the key diagram that the update information of the established two-dimensional bar code of expression is imported an example of picture.
Figure 19 is the key diagram that expression round dot mark is handled.
Figure 20 relates to the flow chart illustration of production process information of the present invention and parts.
Figure 21 relates to the key diagram of management system for tracking of the present invention.
Figure 22 relates to the key diagram of two-dimensional bar code of the present invention.
Figure 23 is the process flow diagram that expression relates to operation steps of the present invention.
Figure 24 relates to the key diagram of other management system for tracking of the present invention.
Figure 25 relates to the key diagram of cell of the present invention.
Figure 26 relates to the key diagram of two-dimensional bar code of the present invention.
Figure 27 relates to the key diagram of other management system for tracking of the present invention.
Figure 28 is the key diagram of expression prior art example.
Embodiment
Below, describe with regard to embodiments of the invention with reference to the accompanying drawings.Simultaneously, below Shuo Ming parts, configuration etc. are not limited in the mentioned thing of the present invention, are the things that can carry out various changes in aim scope of the present invention.
The two-dimensional bar code that relates to present embodiment is to be arranged in rectangular according to the round dot mark mode and to be formed by light tone and each dark-coloured cell.The form of two-dimensional bar code can adopt data matrix, QR sign indicating number (quick response matrix code) etc.
The round dot mark mode is meant by form the mode that a plurality of round dots make two-dimensional bar code on tagged object, in this manual, comprises two kinds of laser labelling mode and mode of printings.
As shown in Figures 3 and 4, the example of expression two-dimensional bar code.Two-dimensional bar code is to demonstrate the data of representing with LO-pattern by the combination that is aligned to rectangular white sky and secret note.It is to adopt so-called round dot labelling method to form the secret note that constitutes two-dimensional bar code that the two-dimensional bar code of present embodiment forms device.
As shown in Figure 3, when forming two-dimensional bar code by the round dot mark, each cell is a square, therefore, as shown in Figure 5, about becoming each cell of secret note, is the round dot of using the laser labelling circle with n * m (n, m are natural number) in length and breadth.By while the irradiation position of controlling laser beam illuminating laser beam off and on, can in cell, arrange circular round dot.Round dot is overlooked not to be similar round and to be the class rectangle and also can.
And, be in 1 cell, to set the round dot that holds more than the number, rather than 1 or a plurality of round dot are set in 1 cell, promptly carry out mark and also can by so-called vector mark.As shown in Figure 6, in the vector mark, be to form the two-dimensional bar code that round dot piles up by laser radiation.Perhaps, by using the laser beam Continuous irradiation, and meanwhile in cell the irradiation position of mobile laser beam vertical or horizontally, thereby form cell by being coated with line pressure with beamwidth.
In addition, as shown in Figure 4, when forming two-dimensional bar code by the round dot mark, cell is a rectangle, therefore, as shown in Figure 7, about becoming each cell of secret note, is the round dot of using the laser labelling circle with n * m (n, m are natural number) in length and breadth.Also can carry out the vector mark this moment as shown in Figure 8.
Fig. 1 is the key diagram of unitary construction that expression relates to the laser marking device of present embodiment.
This laser marking device mainly is made of data control unit 10 and laser marking instrument 40, is a kind of being used for gauge point horizontal and vertical parity check codes such as two-dimensional bar code, literal, figure, symbol, image to be marked at device on operand (tagged object) W.
Data control unit 10 has with lower member: the central processing unit 11 that carries out various controls, the input part 12 that constitutes by keyboard, mouse etc., the display part 13 that constitutes by monitor and liquid crystal panel etc., by being connected on the efferent 14 that input-output unit on printer and the electronic memory medium etc. constitutes, the input and output portion 15 that constitutes by modulator-demodular unit etc., the storage part 16 that constitutes by hard disk drive and internal memory etc.Contain control program 16a at storage part 16 internal memories, random access memory (the RAM that uses as the operating space, Random AccessMemory) 16b, the database 16c of the production process information of the parts 72 in the following storage management system for tracking, the parameter information 16d of the various parameters during the storage laser labelling.
In addition, database 16c is stored in other device, the structure that obtains database 16c from data control unit 10 also can.And the database 16c during with reply quality inquiry and claim etc. duplicates the structure that stores in the not shown external device (ED) also can.
And then storage part 16 stores as the following information from 15 inputs of input and output portion: barcode size, the canned data that is deposited in bar code, the step-length that is arranged in the round dot each cell that constitutes bar code, the information of tagged object etc.Step-length be meant on the tagged object by the distance between the center of the round dot of laser labelling.In addition, under the limited situation of cell number, the information of relevant cell number is inputed to input and output portion 15.About input information, will describe in detail at the declaratives of setting for the input that forms two-dimensional bar code.
And input and output portion 15 is connected on the communication network I, and data control unit 10 can receive the various information such as production process information of parts from the communicating terminal of outside through communication network I.In addition, data control unit 10 also can be visited above-mentioned communicating terminal through communication network I, downloads production process information and it is stored in database 16c.
Central processing unit 11 is the production process information of the parts 72 that receive to be stored among the database 16c of storage part 16 by input and output portion 15 according to control program 16a.In addition, central processing unit 11 can read the data of input or be stored in data the electron mediator from input part 12, thereby it is stored among the database 16c.Central processing unit 11 is according to operator's operation input, will be stored in after data conversion among the database 16c is two-dimensional bar code, and the control signal that will be used for mark by sequence terminal 20 is sent to data control unit 10.
Fig. 2 is the structure of expression laser marking instrument 40.Laser marking instrument 40 is according to the control signal that comes from data control unit 10, for mark on parts 72 has certain depth and for example overlooks rounded round dot, by controller 42 control ultrasound wave Q-switch elements 43, inner shutter 44, external shutter 45, attenuator (optical attenuator) 46 and current mirror 47, and with Q-switched pulse 1 time or repeatedly 1 round dot is carried out mark.
And the symbol 51 among the same figure is a completely reflecting mirror, and 52 is inner unthreaded hole (model selector), and 53 is light source, and 54 is outgoing mirror, and 55 is unthreaded hole, and 56 for adjusting flat mirror, and 57 is Galileo formula extender, and 58 is unthreaded hole, and 59 is f-θ lens, and 50 is laser oscillator.
Central processing unit 14 is handled desired data according to step, and the various piece in the control device.Central processing unit 14 in the present embodiment carries out the processing of cell size calculation according to the barcode size of appointment and the barcode size and the cell number of canned data or appointment.And, according to barcode size, canned data, cell size, the step-length of appointment, be used for the generation processing that laser marking instrument 40 carries out the laser labelling information of laser labelling.And then, when canned data and step-length generation change, carry out the change of laser labelling information according to modification information and handle.
In order to form the two-dimensional bar code of specified size, central processing unit 14 carries out computing.Central processing unit 14 is according to the two-dimensional bar code of specified size and information memory capacity, perhaps according to the two-dimensional bar code and the cell number of specified size, calculates the size of the cell that constitutes two-dimensional bar code.When calculating the cell size according to the barcode size of appointment and information memory capacity, the size of cell is by drawing divided by the bar yardage that canned data is encoded into behind the two-dimensional bar code with the barcode size of appointment.
For example, barcode size has been appointed as 5mm * 5mm, and canned data is " 01234 ".At this moment, " 01234 " is encoded into two-dimensional bar code, then as shown in Figure 9, with vertical 10 * horizontal 10 numeral 0 or numeral 1 expression.Then can draw cell and be of a size of vertical 5mm/10=0.5mm this moment, laterally 5mm/10=0.5mm.
When barcode size and cell number have been specified, by the barcode size of appointment then can be drawn the size of cell divided by the cell number.For example, barcode size has been appointed as 5mm * 5mm, when the cell number has been appointed as vertical 20 * horizontal 20, can draws cell and be of a size of vertical 5mm/20=0.25mm, laterally 5mm/20=0.25mm.
In addition, central processing unit 14 obtains relevant to the information of laser labelling in the step-length of the round dot of each cell, generates laser labelling information according to barcode size, canned data, cell size, step-length.Laser labelling information is meant that indication laser marking instrument 40 should be how in the information of the enterprising row labels of tagged object, comprises the parameter informations such as coordinate information, optical maser wavelength, Q-switch frequency, laser energy, round dot density, round dot irradiation time, mark number of times of round dot.
The laser labelling information that is generated by central processing unit 14 is sent out toward laser marking instrument 40.Laser marking instrument 40 is controlled each several part according to the laser labelling information that receives by controller, and carries out laser labelling according to laser labelling information.Laser marking instrument 40 reads the coordinate information of each round dot from the laser labelling information that receives, and according to this coordinate information, tagged object is carried out laser labelling.
An example of Figure 10 two-dimensional bar code that to be expression form according to the information of user input.Two-dimensional bar code shown in the figure, it is vertical 5mm * horizontal 5mm according to the specified barcode size of user, quantity of information according to input calculates cell and is of a size of 0.5mm * 0.5mm, and the diameter of the round dot that forms by laser labelling is 0.05mm, and the specified step-length of user is 0.1mm.
And, according to the formation method of two-dimensional bar code of the present invention, shown in Figure 11 (A), 11 (B), 11 (C), no matter the size of the data volume that two-dimensional bar code contained can be specified the size of two-dimensional bar code.In other words, shown in Figure 11 (A), when data volume hour, the cell number that constitutes the integral body of two-dimensional bar code tails off, but the size of each cell becomes big.At this moment, each cell is made of the round dot that is arranged in 6 * 6.On the other hand, shown in Figure 11 (B), when data volume was big, the cell number that then constitutes the integral body of two-dimensional bar code became big, but the size decreases of each cell.At this moment, cell is made of the round dot that is arranged in 3 * 3.And, among Figure 11 (A), 11 (B), set the size and the step-length of each round dot comparably.
In view of the above, because no matter the size of data volume can be specified the size of two-dimensional bar code, even therefore in limited marked region, can not make the size of two-dimensional bar code become big, it is hereby ensured to comprise all data necessary in the two-dimensional bar code because of data volume.And, though the foregoing description for having specified the embodiment of size and step-length of round dot, but undoubtedly, can change the size of round dot and step-length and then suitably set each cell.For example, shown in Figure 12 (A), when in 1 cell, being arranged with 3 * 3 round dot, by step-length is diminished, then shown in Figure 12 (B), can be with the size decreases of cell.In view of the above, can increase and decrease the cell number by change step.
And during change step, along with the density step-down of step-length change large circle point, then the concentration of bar code can be thin out.In addition, along with the diminish density of initial point of step-length uprises, then the concentration of bar code can deepen.In view of the above, even identical two-dimensional bar code can be adjusted the concentration of bar code according to the size of step-length.
In addition, when step-length is 0, in other words shown in Figure 11 (C), when 1 cell is 1 round dot, then can increase the cell number by size decreases with cell, can be in the more information of two-dimensional bar code stored.In the case, can store a large amount of information.Simultaneously, owing to being 1 round dot, then can form two-dimensional bar code apace with 1 cell laser labelling.
And, when 1 cell is 1 round dot, must accomplish to distinguish each cell at cell internal labeling round dot.In other words, along with the cell size becomes big, be necessary to make the round dot that in each cell, forms also to become big.So, size according to the starting material and the cell of tagged object, the optimum value of the irradiation time of appointment optical maser wavelength, laser energy, Q-switch frequency, round dot, mark number of times etc., perhaps the lens of also replaceable laser marking instrument 40 make and form the suitably round dot of size in the cell.
Figure 13 is the key diagram that expression has pre-determined the two-dimensional bar code of barcode size and cell number.Figure 13 (a) has identical barcode size and canned data with Figure 13 (b), Figure 13 (c) and Figure 13 (d), but cell is counted difference.In other words, Figure 13 (a) has stored identical information " 01234 " with Figure 13 (b), but the cell number of Figure 13 (a) is vertical 10 * horizontal 10, and the cell number of Figure 13 (b) is vertical 22 * horizontal 22.In addition, Figure 13 (c) has stored identical information " 0123456789 " with Figure 13 (d), but the cell number of Figure 13 (c) is vertical 10 * horizontal 10, and the cell number of Figure 13 (d) is vertical 22 * horizontal 22.In view of the above, when the cell number is specified in advance, two-dimensional bar code can be in the scope of the cell number of appointment the identical information of expression.But when the cell number was designated, the upper limit that can stored quantity of information was restricted.
When forming two-dimensional bar code, by designating unit lattice number, no matter whenever what of quantity of information can form the two-dimensional bar code of same unit lattice number.Therefore, when reading two-dimensional bar code, reader is if can always read the coding of same unit lattice size, and the better simply while of the adjustment when reading, and can guarantee the carrying out of data read.
At this, the input of just carrying out in order to form the two-dimensional bar code in the present embodiment is set and is described.The process flow diagram that central processing unit 14 when Figure 14 and Figure 15 are expression input setting is handled.Import when setting, on the display part 11 of data control unit 10, show input picture as shown in figure 12.In the input picture, be provided with the raw-material information input unit N1 of associated mark object, the information input unit N2 of relevant barcode size and cell number, the information input unit N3 of relevant canned data, the information input unit N4 of relevant step-length imports each information respectively.In information input unit N4, according to the material of tagged object and the condition when carrying out laser labelling, demonstrate the preferred values of step-length.Step-length when carrying out laser labelling, for example on metal covering, carry out laser labelling then the round dot diameter be 0.003mm, if pottery then preferred values is 0.005mm~0.01mm, if resin then preferred values is 0.01mm~0.02mm, if the sprayed surface of coating then preferred values is 0.01mm~0.02mm, if aluminium then preferred values is 0.003mm~0.01mm, if stainless steel then preferred values is 0.003mm~0.01mm, if glass then preferred values is 0.006mm~0.02mm, if paper then preferred values be 0.006mm~0.02mm.The user can import corresponding step-length on one side with reference to preferred values on one side.
For example tagged object is a pottery, and when wanting the high round dot of dense mark density, step-length is appointed as 0.005mm, when wanting the low round dot of shallow clearly mark density, step-length is appointed as 0.01mm.Step-length is not subjected to the restriction of preferred values scope, and it also can be appointed as extraneous numerical value.For example, step-length is 0 o'clock, and shown in Fig. 8 (c), 1 cell laser labelling is 1 round dot.
The object that serves as a mark can use sprayed surface, aluminium, silicon, glass, stainless steel, paper, timber, leather, cloth, jewel of pottery, resin or plastics, coating etc.At first, in step S1, judge whether to have selected the starting material of appointment.Confirmed to select (step S1 behind the specified starting material; Be), read the condition (step S2) when carrying out laser labelling in the parameter information of central processing unit 14 from be stored in storage part 16.(step S1 during the starting material of having selected appointment unconfirmed; ), repeatable operation is not till confirming.
Then, in step S3, confirm whether to have specified barcode size.In order to specify barcode size, the user imports wide and high numerical value respectively in the information input unit N2 of relevant barcode size in display frame as shown in figure 13.(step S3 when barcode size has been specified; Be), received the data of having imported at data control unit 10, and the data of input are discerned (step S4) by central processing unit 14 when being stored in storage part 16.(step S3 when barcode size unconfirmed has been specified; ), repeatable operation is not till confirming.
And then in step S5, whether input validation is deposited in the information of two-dimensional bar code.(step S5 when canned data has been imported; Be), received the data of having imported at data control unit 10, and the data of input are discerned (step S6) by central processing unit 14 when being stored in storage part 16.
Then, in step S7, whether affirmation designating unit lattice number.(step S7 when the cell number has been specified; Be), received the data of having imported at data control unit 10, and the data of input are discerned (step S8) by central processing unit 14 when being stored in storage part 16.(step S7 when cell number unconfirmed has been specified; ), do not enter step S9.
In step S9, calculate the size of the cell that constitutes two-dimensional bar code.When in step S7, having specified cell to count, calculate the cell size according to barcode size and cell number.When the designating unit lattice are not counted in step S7, calculate the cell size according to barcode size and canned data.
Then, in step 10, determine whether to specify step-length (step S10).(step S10 when step-length has been specified; Be), received this data at data control unit 10, and these data are discerned (step S11) by central processing unit 14 when being stored in storage part 16.And, (step S10 when not specifying step-length; ), when determining that the concentration with standard forms step-length, and when having set the intermediate value of proper range, do not enter step S12.
In step S12, central processing unit 14 is formed for the laser labelling information that laser marking instrument 40 carries out laser labelling according to barcode size, canned data, cell size, step-length.
In step S13, in the display part 11 of data control unit 10, shown and passed through above-mentioned steps and definite two-dimensional bar code.At this moment, on display part 11, demonstrate, for example picture as shown in figure 17.Demonstration on display part 11 like this can show when setting end automatically, also can only show when the customer requirements preview.The user determines whether this two-dimensional bar code is available after having seen display part 11 again.In step S14, determine whether to be necessary to revise canned data or step-length.When need not to revise and user (step S14 when pressing the button of OK; ), do not enter step 20.(step S14 when on the other hand, the user proposes to revise request; Be), when having imported the update information of relevant canned data or step-length, after being discerned by data control unit 10, this update information is shown in the correction picture as shown in figure 18 (step S15).
Revising on the picture, when the user changed indication at every turn, the two-dimensional bar code that has shown was just changed, while so the user just can confirm that the state of two-dimensional bar code carries out correcting process.
Then, carry out correcting process (step S17), determine whether correction finishes (step S18), (step S18 when determining that correction does not also finish; ), do not carry out the processing of step S15 repeatedly to step S17.(step S18 when definite correction has finished; Be), in step S19, central processing unit 14 carries out the correction of laser labelling information according to the canned data and the step-length that are changed.Then, in step S20, central processing unit 11 is with above-mentioned laser labelling direct information laser marking instrument 40.The controller 42 of laser marking instrument 40 forms specified two-dimensional bar code by laser labelling according to the information Control ultrasound wave Q-switch element 43, inner shutter 44, external shutter 45, attenuator 46 and the current mirror 47 that receive on tagged object 1.When carrying out laser labelling, carry out mark with the order shown in Figure 19 (A).And the mark in each cell is to carry out the round dot mark according to the direction shown in Figure 19 (B).
So, according to the formation method of two-dimensional bar code of the present invention, with the barcode size of appointment, for example the cell number is 10 * 10 o'clock, if numeral can be stored 6 characters, if 3 characters can be stored in letter, can store 1 literal during binary bit.And even barcode size is identical, the cell number is 144 * 144 o'clock, if numeral can be stored 3116 characters, if 2335 characters can be stored in letter, can store the bulk information of 1556 literal during binary bit.Therefore, even marked region is very limited place, the space of a little also can deposit a large amount of information in.And, in cell, can form secret note by the round dot mark, be step-length therefore by the distance of adjusting between round dot, can form the cell of virtually any size size.In addition, by adjusting step-length, can form the two-dimensional bar code of desired concentration.
And in the present embodiment, two-dimensional bar code is directly used laser labelling well on tagged object.Therefore, the two-dimensional bar code that has printed is attached on other parts, compares, can not peel off or stained, the information that can long preservation have deposited in because going through days with the two-dimensional bar code that forms by printing.
In addition,, compare, can on marked region, not produce continuous tiny flaw during laser labelling with the vector mark that on tagged object, carries out the continuous laser mark owing to be the round dot mark.Have good against weather, corrosion resistance, impact resistance, and no matter be which type of material can add two-dimensional bar code aptly.When particularly on transparent materials such as glass, carrying out laser labelling, be closed in the round dot vestige, outside with the scope of the formed two-dimensional bar code of round dot mark, can not rupture in the transparent material subscript crack that is produced of clocking.And when the enterprising row labels of raw material metal, the degree of depth of round dot vestige is between 1 μ m to 20 μ m, and when the enterprising row labels of sprayed surface, the degree of depth of round dot vestige can prevent the deterioration of tagged object in view of the above between 1 μ m to 10 μ m.
In the above-described embodiments, in order to determine the density of round dot, represented to specify the method for step-length, but do not specified step-length, and specified the method for round dot number also can.Step-length and round dot number are interrelated, if determine any one party then the opposing party also be determined.
And then, in the above-described embodiments, represented that the step-length of the round dot in each cell is the example of respective change also when the size of cell during according to how much the changing of quantity of information.And, not the round dot mark, but with vertical n bar, when laterally the straight line of m bar carries out the vector mark, the size that length by changing straight line or the bar number that changes straight line then can the adjustment unit lattice.
Then, describe with regard to the formation of using above-mentioned two-dimensional bar code to carry out the tracking of products management.
In the present embodiment, be that example describes with electric apparatus 70 as product.And product in the present invention is meant, by electronics/electric apparatus, machinery, vehicle, dwelling house member single or that a plurality of component-assembled manufacturings form or all products that contain these parts.Electronic equipments 70 is by a plurality of parts 72 (72a, 72b ...) assembly forms.As shown in figure 20, the parts 72 ordered of product vendor A are that the B of manufacturer by each parts is sent to the product vendor A.
And when parts 72 were sent to the product vendor A, the production process information of relevant parts 72 just sent to the product vendor A by communication network I such as the Internets by the B of parts manufacturer.This production process information can be determined according to being attached to transmission number on the parts 72 that are sent out etc.
The product vendor A receives production process information by data control unit 10, according to sending number etc. the production process information and the parts 72 that receive is decided accordingly then.Production process information comprises with date of manufacture, production line number, production code member, production responsible official numbering, parts to be used group number, checks relevant information such as determining result, shipment number, starting material ground content and working condition.
And, by identification number parts 72 are distinguished, will be stored in database 16c in the following data control unit 10 according to sending production process information that number etc. determined according to identification number again.At this moment, have parts manufacturer coding in the database 16c, the taxonomy of goods coding sends number etc.In other words, even identical parts 72 with different identification numbers, and are regarded as identical object with the parts 72 of identical identification number for the different parts of date of manufacture and production line number.Therefore, if can determine identification number, just can obtain the production process information of these parts 72 in the database 16c.
And, in the present embodiment, though be to be stored in the database 16c by the production process information that communication network I will rely on data control unit 10 to receive, but be not limited only to this, also can manually be input among the database 16c being sent out the data of having in the external packing of parts such as taxonomy of goods coding, also can be with the bar code of having in the external packing, two-dimensional bar code, information in the IC tag is input among the database 16c after reading by reader etc., also can input among the database 16c after collecting the electron mediator that has production process information from the B of parts manufacturer.
Now the structure with regard to the management system for tracking S of present embodiment (below, be called the S of system) describes.As shown in figure 21, native system S is by the data control unit 10 that is connected in communication network I, be controlled at a plurality of supply line 81 (81a, 81b ...) carry out the sequence of laser labelling sequence terminal 20, be arranged at control terminal 30 (30a, 30b on the whole supply line 81 ...), the laser marking instrument 40 (40a, the 40b that control by each control terminal 30 ...), read that the reader 60 (60a, 60b) of the two-dimensional bar code of mark by laser marking instrument 40 constitutes.
Electric apparatus 70 is by relying on not shown mechanical arm etc. will be by supply line 81 (81a, 81b ...) transport and the parts 72 that arrive are installed in order from main supply line 80 and transport and on the operand that arrives and make after checking.And, be to be that example describes among the following embodiment, but undoubtedly with the electric apparatus 70 that constitutes by a plurality of parts, the product that is made of single parts, starting material, parts are also applicable to the present invention.
Transport parts 72 in order by supply line 81.Then, the laser marking instrument 40 of mark two-dimensional bar code 1 on the parts 72 that are provided for being transported on each supply line 81.This laser marking instrument 40 is to be marked in order by supply line 81 and to transport and on the appointed part of the parts 72 that arrive containing the two-dimensional bar code 1 that is useful on the identification number that obtains production process information.
And on each supply line 81, reader 60 is set at the downstream of laser marking instrument 40.This reader 60 is that the control signal according to control terminal 30 reads with laser marking instrument 40 and carries out two-dimensional bar code 1 behind the mark, then the two-dimensional bar code 1 that reads is sent to control terminal 30.Whether affirmation is consistent with the two-dimensional bar code 1 of using laser marking instrument 40 marks from the two-dimensional bar code 1 that reader 60 sends on control terminal 30.If the result who confirms determines that the parts 72 that will be marked with this two-dimensional bar code 1 by not shown mechanical arm take off from supply line 81 under the inconsistent situation.
And though the sequence terminal 120 of present embodiment is controlled at the sequence of carrying out laser labelling on a plurality of supply lines 81, this function also can realize by data control unit 110.
Because the two-dimensional bar code 1 of present embodiment forms with the round dot mark by laser marking instrument 40, therefore both can also can on the parts 72 of very big size, form this two-dimensional bar code 1 in pinpoint accuracy ground on the parts 72 of very small dimensions.In addition, owing to be the mode of using laser labelling, therefore can be directly in product or the enterprising row labels of parts.
Method always can't be on minimum parts relevant informations such as additional identification number, raw-material content, working condition, but by the present invention then can be on minimum parts mark comprise the two-dimensional bar code of identification number.Therefore, can carry out tracing management for the nearly all parts 72 that constitute electric apparatus 70.
In addition, the present invention directly carries out laser labelling to parts 72, therefore compare with two-dimensional bar code 1 that has printed in attaching on the parts 72 or direct situation of on parts 72, printing two-dimensional bar code 1, can go through also can not produce days and peel off, perhaps lettering part is because stained and problem that can't discern.And owing to be to carry out mark by laser beam, therefore can not resemble to attach needs consumables the printed article etc., very suitable.
Then, just describe according to Figure 23 by the operation steps that native system carries out.At first, in the production process information obtaining step, the production process information of the parts 72 that will obtain from communication network I etc. is stored in (S21) the database 16c.The operator specifies the identification number (S22) of the production process information that is used to determine the parts 72 that are transported by input part 12 on each supply line 81 then.By sending number etc. to determining with the parts 72 corresponding production process information that are transported.
In the two-dimensional bar code step of converting, data control unit 10 identification number of appointment is converted into each supply line 81, thereby form two-dimensional bar code 1, shown in Figure 22 (A), respectively with the secret note 2a of 0, the 1 corresponding LO-pattern that constitutes two-dimensional bar code 1 and each cell of white empty 2b, shown in Figure 22 (B), form the two-dimensional arrangements data 3 (S23) of 1 round dot of 1 cell.
Then, in the parameter setting step, the size of the marked region of reference part 72 is in the size of input part 12 inputs and setting two-dimensional bar code 1, add the size of 1 cell as shown in figure 25 according to the size of two-dimensional bar code 1, and be suitable for the processing footpath of beam spot of rapidoprint and the bulk informations such as quantity of the beam spot in 1 cell, and according to parameter information 16d determine laser energy, Q-switch frequency, round dot irradiation time, shine the optimum value of number of times, optical maser wavelength etc.
In other words, because the reacting value of different its laser of mark rapidoprint is also different, even shine the beam spot of identical output at identical diameter, the diameter of formed round dot 5 is also different, therefore, according to the processing footpath of the preset amount beam spot of the kind of rapidoprint and formed round dot 5, set in view of the above the round dot 5 that is arranged in the direction in length and breadth in 1 cell quantity (n, m) and the distance between the round dot 5 etc.In other words, as described below, when mark contains the two-dimensional bar code 1 of identical data, can set size aptly with the big or small corresponding to two-dimensional bar code 1 of the marked region of parts 72.
Then, will be labeled as 1 two-dimensional arrangements data 3 after the round dot at 1 cell and combine, and be translated into the process data that has the beam spot coordinate according to scanning sequency with the bulk information of above-mentioned 1 cell.Step so far is carried out at data control unit 10, and process data and control signal after changing are sent to sequence terminal 20 (S25).At this moment, determined to form each coordinate data of round dot 5 by the beam irradiation.
Then, in markers step (S26), in sequence terminal 20, arrange the processing sequence of process data.That is, whether decision should transfer to control terminal 30a, 30b with process data as shown in figure 21 side by side ... carry out mark processing simultaneously; Still should be as shown in figure 24, will control terminal 30b to be processed such as transfer to after the process data series connection in order ...In other words, in structure as shown in figure 21, control terminal 30 is to be directly connected on the sequence terminal 20, the parallel simultaneously marking of control of carrying out of each control terminal 30.On the other hand, in structure as shown in figure 24, control terminal 30 is connected in series, and carries out laser labelling at regular intervals by 40 in laser marking instrument.
So, to store the process data of beam spot coordinate according to parallel control terminal 30a, the 30b of transferring to of scanning sequency ... then by each laser marking instrument 40a, 40b ... illuminating laser beam on raw-material surface, thereby form the secret note 2a that the round dot 5 shown in Figure 26 (A) is arranged in length and breadth, laser beam irradiation less than part form white empty 2b, form two-dimensional bar code 1 at last.Because the size of cell 2 is specified, and along the housing of cell 2 round dot 5 is set, and, therefore can constitute accurate secret note 2a owing to the round dot number that wherein is provided with also is appointment.
So, the two-dimensional bar code 1 of laser labelling is read by the reader 60 that is arranged at laser marking instrument 40 downstreams, and is sent to control terminal 30.Confirm that at control terminal 30 whether two-dimensional bar code 1 is by correct labeling.In other words, the two-dimensional bar code 1 that comes from reader 60 30 pairs of control terminals with confirm with whether the two-dimensional bar code 1 of laser marking instrument 40 marks consistent.Then, when confirming as unanimity, in production stage, these parts 72 are assembled on the operand on the supply line 80 (S26),, these parts 72 are taken off from supply line 81 by not shown mechanical arm etc. if confirm as when inconsistent.
Figure 26 (A) arrange to set round dot 5 in 1 cell and the example of the two-dimensional bar code 1 that forms according to 4 * 4.With respect to this, Figure 26 (B) sets 1 round dot and the example that forms identical two-dimensional bar code 1 in 1 cell.Figure 26 (B) has used the round dot 5 in identical processing footpath with Figure 26 (A).In other words, the length of the vertical and horizontal of the two-dimensional bar code 1 of Figure 26 (B) be about Figure 26 (A) two-dimensional bar code 1 vertical and horizontal length 1/4.So, can in the two-dimensional bar code of different size, represent identical information.
In addition, by correctly controlling the beam spot coordinate, even the high two-dimensional bar code 1 of degree of accuracy of arrangement that can marker dots 5 when therefore setting minute sized two-dimensional bar code 1, also can be guaranteed the higher degree of accuracy that reads.
And, in the above-described embodiments, though will be converted into data behind the two-dimensional bar code, be not limited only to this as the identification number of parts 72, have the object of bigger marked region for very big parts etc., also production process information itself can be converted into the laggard row labels of two-dimensional bar code.If so, then define bad parts and invest two-dimensional bar code 1 on these parts, just can directly know production process information, also can tackle the inquiry and the claim of relevant quality problems rapidly by reading.In addition, both laser labelling two-dimensional bar code 1 can be all used, also laser labelling two-dimensional bar code 1 can be only on main parts, used for the nearly all parts 72 that constitute electric apparatus 70.
As mentioned above, the two-dimensional bar code 1 of on the component parts 72 of electric apparatus 70, directly representing identification number with laser labelling, therefore when electric apparatus 70 generation undesirable conditions, if can determine to cause the parts 72 of the reason of undesirable condition, then just can directly also obtain the production process information that is stored in the database 16c definitely from the two-dimensional bar code on being attached to these parts 72 1.
In view of the above, just can know the date of manufacture of the parts 72 of the reason that causes undesirable condition, production line number, production code member, production responsible official numbering, parts use group number, check and determine result, shipment number etc., thus the source of these parts 72 of follow-up study, circulation process and production stage etc. rapidly.The make a thorough investigation generation reason of trouble unit in the production stage of next time, can attempt to adjust, and repairs, and improves the undesirable condition of these manufacturing installations etc., sweeps defective products, thereby can reduce the production cost of whole electric apparatus 70.In addition, also can reduce expense and the customer service expense of handling claim.
In addition, owing to can adhere to trickle two-dimensional bar code 1 by laser labelling on parts 72, therefore parts 72 from the parts 72 of very small dimensions to very big size almost can mark two-dimensional bar code 1 on all parts 72.Even the parts 72 of the very small dimensions that has difficulties for past follow-up study promptly also can obtain its production process information immediately in view of the above.
And, in the above-described embodiments, be provided with laser marking instrument 40 and reader 60 though parts 72 are offered the supply line 81 of main supply line 80, but be not limited only to this, as shown in figure 27, also can be the structure that laser marking instrument 40 and reader 60 are set on the supply line 82 of mark special use.
At this moment, the parts 72 that send from parts manufacturer are loaded on the supply line 82, pass through the two-dimensional bar code 1 that sequence terminals 20 are sent out by laser marking instrument 40 marks from data control unit 10.Then, read by the two-dimensional bar code behind the laser labelling 1, determine that in control terminal 30 whether it is by correct labeling by reader 60.In addition, both being connected of sequence terminal 20 and each control terminal 30 can being connected in parallel shown in Figure 27 (A), also can being connected in series shown in Figure 27 (B).
Industrial applicibility
According to aforesaid the present invention, by simple device construction, no matter deposit literal or the image of coding in Etc. the number of information content, can form the two-dimensional bar code of having specified the coding size. Therefore, can be according to mark Object and adhere to the two-dimensional bar code of suitable size.
In addition, when change takes place in the cell size, owing in the two-dimensional bar code of formed objects, can store difference Therefore the information of amount also can without stint be attached to marked region with desired information with two-dimensional bar code In the areal extent.
And then, when having specified barcode size and cell to count, no matter the size of information content can form appointment The two-dimensional bar code of barcode size and cell size, and can improve the accuracy that reads.
According to the present invention, laser labelling carries out with round dot, has therefore prevented that mark part is to a marked region left side The right side is exposed or is produced the marked erroneous such as blank parts, thereby can form high-quality two-dimensional bar code. In addition, by Carry out with round dot in laser labelling, for example 1 interior 1 round dot of cell then can form extremely trickle Two-dimensional bar code, and can on minimum electronic unit etc., adhere to two-dimensional bar code.
And then, because laser labelling carries out with round dot, therefore pass through to specify round dot step-length or round dot number, Can form the two-dimensional bar code of desired concentration. In addition, because laser labelling carries out with round dot, and at mark Carry out continuously the vector mark of laser labelling on the note object and compare, can produce less impact to raw material, complete Become to have good against weather, corrosion resistance, the mark of impact resistance.
In addition, in the present invention, on all parts that consists of product, directly contain and to obtain with laser labelling The two-dimensional bar code of the identification number of production process information perhaps contains raw material and working condition, crudy etc. The two-dimensional bar code of bulk information (production process information). But because each parts size separately and marked region Difference, set the size of two-dimensional bar code according to these. Accordingly, from parts with very small dimensions to having Extremely large-sized parts can be used the laser labelling two-dimensional bar code for nearly all parts.
Therefore, when the undesirable condition of product is when being caused by parts, by reading the two-dimensional bar code that is attached on the parts, Just can promptly obtain the production process information of these parts. Therefore, can reduce in a large number be used to obtaining and produced The tracking time of journey information, guarantee to obtain production process information, in addition, so just can be by the section that will obtain The production process information of part is reflected in the production stage of product, and effectively avoids the production of defective products. And, When mark contains the two-dimensional bar code of raw material and the bulk informations such as working condition, crudy, need not to obtain in addition The production process information of external memory can be known production process information by directly reading this two-dimensional bar code, can With the inquiry of promptly tackling the related products quality and claim etc.

Claims (13)

1. the formation method of a two-dimensional bar code is characterized in that comprising step: the barcode size of specifying two-dimensional bar code; Appointment deposits the canned data in the described two-dimensional bar code in; Determine the cell size of each cell of the described two-dimensional bar code of formation; Specify in the step-length or the round dot number of the round dot of arranging in length and breadth with n * m in described each cell, wherein, n, m are natural number; Generate laser labelling information according to described barcode size, canned data, cell size, step-length or round dot number; According to this laser labelling information laser labelling two-dimensional bar code.
2. the formation method of two-dimensional bar code according to claim 1, it is characterized in that: the cell size of described each cell changes according to described barcode size and canned data.
3. the formation method of two-dimensional bar code according to claim 1, it is characterized in that: the cell size of described each cell calculates according to predetermined cell number.
4. the formation method of a two-dimensional bar code is a kind of method that forms two-dimensional bar code on the product that is made of single or a plurality of parts, it is characterized in that comprising: the production process information obtaining step that obtains the production process information of relevant described parts; The data conversion that will contain the identification number of specific described parts production process information or contain production process information itself is the two-dimensional bar code step of converting of two-dimensional bar code; Parameter setting step according to the two-dimensional bar code size after the described component settings conversion; Set the laser labelling step of the two-dimensional bar code of size by laser marking instrument direct laser labelling on described parts.
5. the formation method of two-dimensional bar code according to claim 4, it is characterized in that: in described laser labelling step, size according to the two-dimensional bar code of in described parameter setting step, setting, each cell that the round dot that can form by the irradiation by laser beam is arranged in length and breadth with n * m, by the Continuous irradiation of laser beam and extrusion becomes each rectangular-shaped cell, perhaps form by the Continuous irradiation of laser beam in each cell of area-encasing rectangle shape any one and form described two-dimensional bar code, wherein, n, m are natural number.
6. the formation method of two-dimensional bar code according to claim 4 is characterized in that: in described laser labelling step, contain and read the described two-dimensional bar code behind the laser labelling and determine that whether described two-dimensional bar code is by the step of correct labeling.
7. the formation device of a two-dimensional bar code, it is characterized in that: the step-length of the round dot of possess the barcode size of obtaining two-dimensional bar code, the canned data that is deposited in described two-dimensional bar code, arranging in each cell that constitutes described two-dimensional bar code with n * m in length and breadth or the information of round dot number are obtained function, wherein, n, m are natural number; Carry out the cell size calculation processing of described each cell according to described barcode size and canned data, carry out the calculation function of the generation processing of laser labelling information according to described barcode size, canned data, cell size, step-length or round dot number; Two-dimensional bar code is carried out the laser labelling function of laser labelling according to described laser labelling information.
8. the formation device of two-dimensional bar code according to claim 7 is characterized in that: described calculation function is according to the change of obtaining the described canned data that function obtains by described information the cell size of described each cell to be changed processing.
9. the formation device of two-dimensional bar code according to claim 7, it is characterized in that: described calculation function is according to obtaining the described step-length that function obtains or the modification information of round dot number by described information, carrying out the generation of different laser labelling information and handle.
10. the formation device of a two-dimensional bar code, it is characterized in that: the cell number that possesses each cell of the barcode size of obtaining two-dimensional bar code, the canned data that is deposited in described two-dimensional bar code, the described two-dimensional bar code of formation, the step-length of the round dot of arranging in length and breadth with n * m in each cell that constitutes described two-dimensional bar code or the information of round dot number are obtained function, wherein, n, m are natural number; Carry out the processing of cell size calculation according to described barcode size and cell number, carry out the calculation function of the generation processing of laser labelling information according to described barcode size, canned data, cell size, step-length or round dot number; Two-dimensional bar code is carried out the laser labelling function of laser labelling according to described laser labelling information.
11. the formation device of the two-dimensional bar code of recording and narrating according to claim 10 is characterized in that: described calculation function is to handle according to the change that the modification information that obtains the described cell number that function obtains by described information carries out the cell size of described each cell.
12. the formation device of two-dimensional bar code according to claim 10 is characterized in that: described calculation function is to handle according to the generation that the modification information that obtains described step-length that function obtains or round dot number by described information carries out different laser labelling information.
13. the formation device of a two-dimensional bar code, it is a kind of device that on the product that constitutes by single or a plurality of parts, forms two-dimensional bar code, it is characterized in that: possess the function of the production process information of obtaining relevant product slate parts, deposit the function of the production process information of being obtained in; The data conversion that will contain the identification number of specific described production process information or contain production process information itself is the function of two-dimensional bar code; The big or small directly function of laser labelling two-dimensional bar code on parts according to the two-dimensional bar code of setting according to parts.
CNB2004800229922A 2003-08-11 2004-08-11 2-dimensional code formation method and formation device Expired - Fee Related CN100378740C (en)

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CN101625719B (en) * 2008-07-10 2011-05-25 深圳市大族激光科技股份有限公司 Method for marking laser bar codes
CN103730054A (en) * 2013-02-26 2014-04-16 立德高科(北京)数码科技有限责任公司 Anti-counterfeit mark printed on surface of plate
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CN110400514A (en) * 2018-04-24 2019-11-01 欣兴电子股份有限公司 Two-dimensional bar code structure and its production method
CN110653400A (en) * 2018-06-28 2020-01-07 富鼎电子科技(嘉善)有限公司 Two-dimensional code processing method, processing device and computer storage medium
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Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101105833B (en) * 2007-06-12 2011-04-06 李曙光 2D linear graphics coding anti-fake method
CN101625719B (en) * 2008-07-10 2011-05-25 深圳市大族激光科技股份有限公司 Method for marking laser bar codes
CN103730052A (en) * 2013-02-21 2014-04-16 立德高科(北京)数码科技有限责任公司 Anti-counterfeiting label printed on surface of PVC material
CN103730055A (en) * 2013-02-21 2014-04-16 立德高科(北京)数码科技有限责任公司 Anti-counterfeit mark printed on ceramic
CN103730054A (en) * 2013-02-26 2014-04-16 立德高科(北京)数码科技有限责任公司 Anti-counterfeit mark printed on surface of plate
CN110400514A (en) * 2018-04-24 2019-11-01 欣兴电子股份有限公司 Two-dimensional bar code structure and its production method
CN110400514B (en) * 2018-04-24 2021-10-15 欣兴电子股份有限公司 Two-dimensional bar code structure and manufacturing method thereof
CN110653400A (en) * 2018-06-28 2020-01-07 富鼎电子科技(嘉善)有限公司 Two-dimensional code processing method, processing device and computer storage medium
CN113392669A (en) * 2021-05-31 2021-09-14 苏州中科华影健康科技有限公司 Image information detection method, detection device and storage medium
CN113392669B (en) * 2021-05-31 2022-09-23 苏州中科华影健康科技有限公司 Image information detection method, detection device and storage medium
CN116100159A (en) * 2023-03-07 2023-05-12 湖北同源科技有限公司 Automatic nameplate marking device for laser marking
CN116100159B (en) * 2023-03-07 2023-06-30 湖北同源科技有限公司 Automatic nameplate marking device for laser marking

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