CN100458828C - Method, program and unit for controlling library arrangement - Google Patents
Method, program and unit for controlling library arrangement Download PDFInfo
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- CN100458828C CN100458828C CNB2004100820098A CN200410082009A CN100458828C CN 100458828 C CN100458828 C CN 100458828C CN B2004100820098 A CNB2004100820098 A CN B2004100820098A CN 200410082009 A CN200410082009 A CN 200410082009A CN 100458828 C CN100458828 C CN 100458828C
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Abstract
As a mobile robot moves in a preset cell arranging direction of a medium storage, a catalogue processing cell reads bar code label of a medium box by multiple scanning each label by a bar code reader and informs the stored medium information to a high-level device. An error reason determining processing cell extracts error data from the obtained scanned data by the catalogue processing cell to determine if there is a bar code label: if yes, executing a preset retry processing and otherwise informing the determined result to the high-level device without executing the preset retry processing.
Description
Technical field
The present invention relates to a kind of method, program and unit that is used for the control chart library arrangement, in order to be installed in the line scanning type reader in the medium carrying robot by use, read the bar coded sticker on the recording medium such as tape cassete that leaves in the unit automatically.Relate in particular to a kind of method, program and unit that is used for the control chart library arrangement, do not have the caused mistake of recording medium of bar coded sticker with effective processing by scanning.
Background technology
In known library device, the cartridge such as tape cassete of having bar coded sticker is stored in setting a plurality of storage unit on the top of the shelf by the unit.This cartridge is taken out from the storage unit that is designated as reference position according to the movement directive of main frame by the carrying robot, be transported on the driver module as the destination by this movement directive, and be placed in this driver module, like this, this medium is recorded or reproduces.The carrying robot is according to the movement directive of main frame, this is recorded or reproduce after cartridge, from the driver module that is designated as reference position, take out, and it is put back into according to movement directive is appointed as in the storage unit of destination.
Cartridge is pasted with bar coded sticker, and when cartridge was put into library's device, this bar coded sticker was the control information of the medium behind the record on this cartridge rear surface.The bar coded sticker of this medium reads by the barcode reader that is installed in the carrying robot.This barcode reader is provided with a LED luminescence unit and an one dimension CCD, and in this LED luminescence unit, LED is linearly aligned.When this LED luminescence unit was opened, one dimension CCD scanned this bar coded sticker, thereby bar coded sticker is read.
(patent document 1)
Publication number is the Japanese patent application of No.11-45306
(patent document 2)
Publication number is the Japanese patent application of No.2000-260089
In library's device, when the cartridge of requirement being put into this library's device and being stored in the unit when beginning to operate, the bar coded sticker that is stored in a plurality of cartridges in this device is read in one catalogue operation (inventory operation) continuously, and informs the position and the type of this cartridge to main frame.The minimum operation unit of this catalogue operation be in this device cabinet storage unit, as a hurdle of a stringer.Promptly, the operation of this catalogue is carried out like this: will carry robot movement and be positioned top unit place as the hurdle of process object, then this carrying robot moves up and down with the speed of rule, and this barcode reader scanning is to read bar coded sticker continuously simultaneously.
Yet,, sometimes, have the cartridge that does not attach bar coded sticker and be stored in library's device owing to forget that attachment labels or label come off.When in the catalogue operation, when barcode reader scans this cartridge that does not attach bar coded sticker, only by as read the scan-data that the result obtains, can not determine cause the former of mistake because be not pasted with bar coded sticker, bar coded sticker fault etc. occurred by stained or barcode reader.
Therefore, in traditional library's device, when the catalogue operation on a hurdle is finished, in case extracted error data from reading the result, will carry out diagnostic routine is that fault has taken place barcode reader with the reason of determining mistake, or defective has appearred in bar coded sticker.If no problem, cause that this bar coded sticker of mistake will be by retry operation.
Figure 23 is the process flow diagram of traditional cataloged procedure, and its step is as follows:
Step S1: specify to carry out a target hurdle of catalogue operation, with the carrying robot movement to the top unit on target hurdle and be positioned this.
Step S2: this barcode reader scans (catalogue operation) in the time of by carrying the moving up and down of robot, and reads the bar coded sticker that is stored in the cartridge in the hurdle continuously.
Step S3: check to read whether there is mistake among the result.If the mistake of having enters step S4, otherwise process finishes.
Step S4: if satisfy the conditions for diagnostics of barcode reader: all repeatedly scan-datas of same medium (each medium scanning three times) are error data, then enter step S5, otherwise, enter step S6.
Step S5: will carry robot movement to the cartridge that has mistake, and be positioned this, this barcode reader is carried out diagnostic routine.
Step S6: will carry robot movement to the cartridge that has mistake, and be positioned this, and carry out retry and handle.
In retry was handled, the bar code scope of cartridge was divided into three zones, i.e. a top, and a middle part and a bottom, each part is split into five step scanning positions again.This barcode reader is by being positioned each scanning position regularly, and continues the exposure preset time, repeats so-called location scanning (stop-scanning) and reads.Under the stained situation of bar code, the method of using this retry to handle is of great use, yet be not pasted to the situation of cartridge for bar coded sticker, repeating the unnecessary retry of fixed number of times (for example handles, with predetermined number of times, as maximum 15 times, retry is handled this location scanning), prolonged the processing time like this.
Summary of the invention
The object of the present invention is to provide a kind of method, program and unit that is used for the control chart library arrangement,,, improve handling property by shortening the processing time of the recording medium that is not pasted with bar coded sticker with in this catalogue operation.
Library provided by the invention device comprises: a medium memory device, and it has a plurality of storage unit, in order to deposit the recording medium that is pasted with bar coded sticker; One recoding/reproduction unit is in order to use this recording medium recording or information reproduction; One medium forwarder is in order to transmit this recording medium between this medium memory device or this recording/reproducing apparatus; With a reader (barcode reader), it is installed in the medium forwarder, and reads the bar coded sticker of this recording medium optically by the line scanning of one-dimensional image pixel.
Above-mentioned library of the present invention device is characterised in that a list processing unit, in order to when moving this medium forwarder,, and will be read the result and preserve hereof by repeatedly scanning the bar coded sticker that each label reads this recording medium by reader; Determine processing unit with an error cause, extract error data among the result, and determine whether to exist bar coded sticker in order to reading from be kept at described file, if determining bar coded sticker exists, carry out default retry and handle, otherwise report is determined the result and be need not to carry out retry operation.
According to library of the present invention device, if in this catalogue operation, scanned the recording medium that is not pasted with bar coded sticker, from the bar coded sticker extracting data error data that is obtained in this catalogue operation, and carry out this error cause identification and handle.Handle if determine not exist label, this operation no longer to switch to retry, this recording medium that is not pasted with label need not to carry out unnecessary retry processing like this, do not carry out unwanted operation like this, thereby process has shortened and improved the performance of handling.
If for a recording medium all repeatedly scan-data be error data, and the reading result of front and back recording medium is normally, error cause of the present invention determines that processing unit makes a label determine processing unit based on the non-existent hypothesis of bar coded sticker, carries out one and determines to handle.Determine in the handling procedure at this label, below three look conditions determine not exist label.
(situation 1)
Label determines processing unit determines in being defined as the scan-data of mistake whether bar code pattern exists, and if bar code pattern do not exist, if having black pixel or white pixel sequence, be defined as there is not label above threshold value at the center of data.
(situation 2)
There is bar code pattern if be defined as in the scan-data of mistake, this label determines that processing unit determines whether to exist initial code or stop code (determining the mistake by diffuse reflection or pattern generating), if and initial code and stop code all do not exist, if have black pixel or white pixel sequence at the center of data, then be defined as not having label above threshold value.
(situation 3)
If at least one in initial code or the stop code is present in the scan-data that is defined as mistake, this label determines that processing unit determines whether fillet width/wide width ratio (N/W ratio) and fillet width are positioned at standard value (determining stained), if this N/W ratio and this fillet width are positioned at outside the standard value, if there be white pixel or the black pixel sequence that surpasses threshold value in the center in data, then be defined as not having label.
If in incident 1-incident 3, the center of data does not exist above the black pixel of threshold value or white pixel sequence, this label determines processing unit is determined whether similar from the repeatedly scan-data that same recording medium read, if and this repeatedly scan-data is similar, this label is confirmed as non-compliant label, otherwise this label is confirmed as the handwritten form label.
If all repeatedly scan-datas for this bar coded sticker are error data, and the reading result of front and back recording medium is all undesired, this error cause determines that processing unit makes a reader fault determine that there is the hypothesis of fault in processing unit based on reader, carries out and determines program.This reader fault determining unit is determined the white/black ratio of this scan-data, if it is undesired to be somebody's turn to do white/black ratio, this reader moves to the recording medium place that scans misdata and is fixed on this position by the medium forwarder when, carry out a location scanning with by reading in the exposure that continues predetermined amount of time, if should the scanning fault and should white/black ratio normal, repeat this location scanning pre-determined number, if and all this scan-data all similar repeatedly, determine that this reader is wrong.In addition, when this location scanning fault and should white/black ratio undesired, the fault determining unit of this reader determines there is not label.
Retry processing unit of the present invention, this reader moves to this recording medium place that scans error data and is fixed on this position by the medium forwarder when, carry out this location scanning with by reading continuing exposure one predetermined amount of time, the reading frequency in a predetermined read range becomes the several times of the sweep frequency of this list processing unit like this.For example, in this retry processing unit, the reading range of this recording medium is divided into a upper area, a central region and a bottom section, and carry out at least five times in each predetermined mobile step pitch for each this location scanning of zone.
The invention is characterized in the computing machine that is used for this library's device, this library's device comprises: a medium memory device, be pasted with the recording medium of bar coded sticker in order to storage in a plurality of storage unit, a plurality of recording/reproducing apparatus, in order to use this recording medium recording or information reproduction, the medium forwarder, according to the movement directive of high-order equipment in order between this medium memory device and this recording/reproducing apparatus, to transmit this recording medium, and reader, in order to reading the bar coded sticker on the recording medium that this medium forwarder transports optically, and this computing machine is carried out following steps:
One list processing step in order to when moving this medium forwarder in the scheduled unit orientation at the medium memory device, reads the bar coded sticker of reading medium by reader by scanning repeatedly, and informs the medium information of being stored to high-order equipment; With
One error cause is determined treatment step, determine whether to exist bar coded sticker in order to extract error data the result from reading of finishing that this cataloged procedure step obtained, if determining bar coded sticker exists, carry out default step again, if and determined that bar coded sticker does not exist, report would be determined the result and be need not to carry out the retry treatment step.
The invention provides a kind of method that is used for the control chart library arrangement, library's device comprises: a medium memory device, be pasted with the recording medium of bar coded sticker in order to storage in a plurality of storage unit, a plurality of recording/reproducing apparatus, in order to use this recording medium recording or information reproduction, one medium forwarder, between this medium memory device and this recording/reproducing apparatus, transmit this recording medium in order to movement directive according to high-order equipment, with a reader, in order to read the bar code of the reading medium that this medium forwarder transports optically by the line scanning of one-dimensional image pixel.Method in order to the control chart library arrangement of the present invention is characterised in that, be provided with following steps: a list processing step, in order to when moving this medium forwarder on the unit cell arrangement direction that should be scheduled at this medium memory device, read the bar code of this reading medium by reader by repeatedly scanning, and will read the result and preserve hereof; Determine treatment step with an error cause, extract error data among the result in order to reading from be kept at described file and determine whether to exist bar coded sticker, if determining bar coded sticker exists, carry out default retry treatment step, if and determined that bar coded sticker does not exist, would report definite result and need not to carry out retry operation to high-order equipment.
In addition, it is basic identical with this library's device to be used to control the details of the method for this library's device and program.
Other purpose of the present invention, feature and advantage will be by after the concise and to the point descriptions and detailed description of preferred embodiment of reading the following drawings, and it is more clear to become.
Description of drawings
Fig. 1 is the block scheme according to the hardware configuration of library of the present invention device;
Fig. 2 is for having shown the synoptic diagram of device inside, library by opening door;
Fig. 3 is library's schematic representation of apparatus of observing from the back door;
The synoptic diagram that Fig. 4 amplifies for the position of Fig. 2 being carried robot;
Fig. 5 is for the carrying robot with the synoptic diagram of the elevating lever of library's device;
Fig. 6 is for only being the synoptic diagram of carrying robot;
Fig. 7 is the synoptic diagram of observing from Fig. 6 bottom;
Fig. 8 is the synoptic diagram that is installed in the barcode reader in the carrying robot;
Fig. 9 be barcode reader and cartridge in the plane concern synoptic diagram;
Figure 10 is the synoptic diagram that is used for bar coded sticker of the present invention;
Figure 11 is the synoptic diagram at the back side that is pasted with the box of bar coded sticker;
Figure 12 be pasted with this device the fabricator do not recommend the synoptic diagram at the back side of the box of the bar coded sticker that uses;
Figure 13 is the block scheme according to the functional structure of control procedure of the present invention, and this control procedure is arranged in the controller of Fig. 1;
Figure 14 is the synoptic diagram according to list processing of the present invention;
Figure 15 is the synoptic diagram at the list processing of particular bar;
Figure 16 is for showing the synoptic diagram of list processor respectively;
Figure 17 is the process flow diagram according to list processing of the present invention;
Figure 18 is a process flow diagram of determining processing according to error cause of the present invention;
Figure 19 determines the process flow diagram of processing for the fault that is mainly used in barcode reader after Figure 18;
Figure 20 is the process flow diagram after Figure 19;
Figure 21 is the process flow diagram that the retry after Figure 20 is handled;
Figure 22 is the process flow diagram that the retry after Figure 21 is handled;
Figure 23 is the process flow diagram of traditional list processing.
Embodiment
Fig. 1 is the block scheme according to the hardware configuration of library of the present invention device.In Fig. 1, library of the present invention device 10 is connected in main frame 12.This library's device 10 has pair of control device (switch element) 14-1 and 14-2, a transmit control unit 16, a forwarder 18, a box cabinet 24, and as 8 driver module 28-1 to 28-8 of recording/reproducing apparatus.The number of driver module can change in the scope of 1-16 according to the situation of modeling.Forwarder 18 has one and goes up the robot 20 that moves along Y track 64 in vertically (Y direction).One barcode reader 22 is installed in the carrying robot 20.Box cabinet 24 has a plurality of storage unit, for example is stacked into 26-11 to 26-1n and 26-21 to 26-2n storage unit of two row.In the present embodiment, the tape cassete as cartridge is stored in the unit of box cabinet 24.Controller (director) 14-1 plays significant feature at this in to controller 14-1 and 14-2.In case receive the reading order of cartridge from main frame 12, the movement directive that this controller 14-1 will include reading order is sent to transmit control unit 16.This transmit control unit 16 identifies original address (from address) and destination address (to address).If this movement directive is will take out cartridge from box cabinet 24 and put into driver module, transmit control unit 16 makes the carrying robot 20 of forwarder 18 be positioned at the position of the unit 26-11 of box cabinet 24, this position is an original address, the cartridge in this unit is deposited in taking-up, be transferred to as driver module, and this cartridge is put into this driver module 28-1 by destination address 28-1 appointment.Receive the report that movement directive finishes from transmit control unit 16 after, controller 14-1 is sent to purpose driver module 28-1 with startup command and is sent to main frame 12 with the reproducing medium box and the data that will read in duplicating.If controller 14-1 receives write order from main frame 12, cartridge is transmitted as above-mentioned.In such library's device 10, when a large amount of cartridges is inserted in this device, and when beginning to operate, the operation cataloged procedure, the barcode reader 22 that promptly carries robot 20 reads the bar coded sticker that is attached on the cartridge that is stored in the box cabinet 24 continuously, with the information of type from the medium of being stored to main frame 12 report that be used to show.In according to cataloged procedure of the present invention, when finishing this cataloged procedure, error data comes out from the extracting data of scanning, and analyzes this error data.Do not have label if determine it, the definite result who just will not have label reports to main frame 12, handles and need not to carry out retry.
Fig. 2 is the synoptic diagram of library's device 10, has shown its inside by opening.This library's device 10 has housing 48.54 inside, Qianmen at housing 48 are provided with an inside door 52.Be provided with box cabinet 24 in the inboard of inside door 52, it has the storage unit of multipole arrangement.For example, box I/O mechanism 50 is set to the form of two-stage.One I/O is opened door 56 and is arranged on the Qianmen 54, so that this I/O is opened door 56 corresponding to box I/O mechanism 50.Driver module 28-1,28-2 ... be positioned on the position relative with the box cabinet 24 of the inside door inside of housing 48.Driver module 28-1 wherein, 28-2 ... box I/O surface towards the inside of housing.Carrying robot 20 is positioned at the top of 28-1, and this positional information is the initial position of carrying robot 20.Fig. 3 is 58 views of observing from the back door of library of the present invention device 10.
Fig. 4 is positioned over the synoptic diagram of the part amplification at the position in library's device 10 for carrying robot 20 among Fig. 2.Y track 64 is arranged on the left side of housing 48.Carrying robot 20 is installed on the X layer 66, and it moves along Y track 64 slidably at longitudinal direction.Under the belt drives effect of the X layer 66 that the carrying robot is installed on it by the motor 62 that is used for the Y direction and moves, move along the longitudinal direction.The box cabinet 24 that is arranged on inside door 52 inboards has unit 26, thereby this unit 26 is stacked into multilayer and inclination makes the slit upwards.Cartridge 60 leaves in the unit 26, and protrude from the slit of unit 26 rear end of box like this, as shown in the figure, and 26 the top in the unit.
Fig. 5 is the carrying robot 20 of library of the present invention device and the synoptic diagram of X layer 66.The carrying robot 20 that is installed in X layer 66 moves in the horizontal direction by the motor 68 that is used for directions X and moves.Carrying robot 20 is installed on the turntable 76 of X layer 66, and can rotate on X layer 66 by the motor 75 that is used to rotate.The motor 70 that moves forward and backward that is used for hook block is installed in carrying robot 20.The insertion pawl that is used for hook block takes in by the Spin Control that moves forward and backward motor 70 that is used for hook block and stretches out, to take out this box.One emitting led unit 74 be arranged on this cartridge carrying robot 20 pick up a side.
Fig. 6 is for only comprising the view of the carrying robot among Fig. 5.Fig. 7 is the synoptic diagram of observing from Fig. 6 bottom.This carrying robot 2 has a pair of hook 72-1 and 72-2 in this slit, be arranged with this emitting led unit 74 at this hook.Hook 72-1 and 72-2 move forward under the Spin Control that moves forward and backward motor 70 of hook block being used for, and clamp to be stored in the cartridge in the box cabinet 24 and to put it in the robot.The view of the carrying robot of observing from the bottom of Fig. 7, the inside of the container at 74 rear portions, emitting led unit is barcode reader storage unit 78.
Fig. 8 is the synoptic diagram that is installed in the barcode reader 22 in the carrying robot 20.This barcode reader 22 is installed in the barcode reader storage unit 78.An emitting led unit 74 that is used to illuminate the bar code that is attached to the cartridge back is connected to the leading edge of barcode reader 22.One dimension charge-coupled device (CCD) 80 is arranged in the barcode reader 22 by lens 82.
Fig. 9 be barcode reader 22 among Fig. 8 and cartridge 60 in the plane concern synoptic diagram.In Fig. 9, cartridge 60 is stored in the unit of box cabinet 24.The rear surface part of the cartridge that protrudes from the unit is as label wall-attached surface 84.The bar coded sticker 86 of Figure 10 is attached at mark wall-attached surface 84.Barcode reader 22 is positioned at the rear portion as the cartridge 60 of carrying robot 20 reading object, and by bar coded sticker is seen through lens 82 imagings to one dimension CCD80, and when label wall-attached surface 84 is illuminated by emitting led unit 74, scan this label and read.This one dimension CCD80 is an imaging device, and wherein CCD light receiving element is arranged in a straight line, and has enough resolution for bar code.
Bar coded sticker 86 among Figure 10 is for being used as the bar coded sticker of standard code in the library of the present invention device 10.The standard of bar coded sticker 86 is used as the CODE39 system.In bar coded sticker 86, its left part is an initial code 88, and its right side is divided into stop code 92, and is bar code 90 in the middle of their, and it has 8 characters (character=nine).
Figure 11 attaches the schematic rear view of having the cartridge 60 of the bar coded sticker 86 among Figure 10 on the face 84 for label.When in the catalogue operation, when the carrying robot moves up and down in library of the present invention device, be attached to the bar coded sticker 86 that the label of cartridge 60 attaches on the face 84 and read continuously by barcode reader 22, bar coded sticker 86 barcode reader by the time be scanned three times to obtain scan-data.If the decoded result for twice scan-data in the continuous sweep of bar coded sticker 86 three times is complementary, then decode successfully.Otherwise, be not complementary if scan the decoded result of twice scan-data in three times, then determine to have mistake, and the execution error reason is determined to handle.In error cause is determined to handle, if be defined as there is not label, then should determine the high-order equipment (high-order device) of result notification, otherwise, if this mistake is not by not having label to cause, will carrying out retry operation.When carrying out retry operation, barcode reader 22 moves to and is determined the cartridge 60 that has mistake and re-executes scanning.Label attaches the upward zone 94, middle regional 96 of face 84 and the scanning area that lower area 98 is set to box 60 in the retry operation.In addition, each in the zone 94,96 and 98 is divided into 5 scanning positions, and is shown in dotted line, and is scanned in retry operation maximum 15 times.The scanning of this retry operation is location scanning (stop-scanning), when barcode reader is placed on predetermined scanning position regularly, carries out read operation by the exposure that continues the schedule time.In addition, determine to exist on the medium of mistake by barcode reader 22 is positioned at, this location scanning also can be applicable to barcode reader the fault diagnosis of error data is handled.
Figure 12 is the synoptic diagram of rear surface that is pasted with the box of the bar coded sticker that the device fabricator do not recommend.Figure 12 A is the constitutional diagram on the label attaching face 84 that is attached to cartridge 60 as bar coded sticker 100 two-layer bar code, not recommended.This not recommended bar coded sticker 100 specifically can be as Figure 12 B by the two-layer label that constitutes.If this not recommended bar coded sticker 100 that is attached on the cartridge 60 is placed in library's device, the scan-data of this not recommended bar code 100 might not always be a mistake in the catalogue operation, yet, the incidence of retry has increased, and it is considered to the reason that mistake is determined processing.
Figure 13 is the block scheme according to the functional structure of control procedure of the present invention.This control procedure is provided by controller 14-1 and the 14-2 among Fig. 1, and with controller 14-1 as an example.In Figure 13, controller 14-1 has host interface 30, list processing unit 32, scan data file 34, error cause and determines processing unit 36, retry processing unit 38 and equipment interface 40.This error cause determines that processing unit 36 further comprises funtion parts such as error data extracting unit 42, label determining unit 44 and barcode reader fault determining unit 46.The function of each piece of controller 14-1 is to realize by operation one program on the computing machine of operation controller 14-1.Comprise MPU, the computer hardware of ROM and host computer side and equipment side interface is used as controller 14-1.Execution is stored in as program among the ROM, that control and treatment of the present invention is provided, realizes the function of each piece among the controller 14-1 among Figure 13.Robot 20 moves on the unit cell arrangement direction on the target hurdle of this box cabinet 24 when carrying, just when the top moves on to the bottom, be arranged on list processing unit 32 among the controller 14-1 by barcode reader 22, by scanning each label at least 3 times, read the bar coded sticker 86 that is attached on the cartridge 60, and if twice decoded result of scan-data be complementary then inform that main frame successfully reads.The scan-data that is read in cataloged procedure by list processing unit 32 is kept in the scan data file 34, determines to handle to carry out error cause.Error cause determines that processing unit 36 extracts error data from the scan-data of the scan data file 34 that processing obtains is finished in the list processing unit, determine by analyzing this error data whether bar coded sticker exists, and, if determining bar coded sticker exists, then retry processing unit 38 is carried out the retry processing, otherwise, do not have definite result of label to the main frame report, thereby need not to carry out the retry handling procedure by retry processing unit 38.Be arranged on error cause and determine that the error data extracting unit 42 in the processing unit 36 extracts error data from scan data file 34.Particularly, each bar coded sticker obtains three scan-datas.If twice decoded result in these three scan-datas is complementary, these data are normal data; Otherwise if each decoded result in three scan-datas is not all thought coupling, these data are error data.Extract these error datas, determine the scan-data of handling as error cause.Label determining unit 44 determines do not have label or other reason by the reason of the error data that is drawn in the error data extracting unit 42.When in processing, temporarily having determined the barcode reader read failure by label determining unit 44, fault determining unit 46 work of barcode reader, and the fault diagnosis of execution barcode reader is handled.
Wherein, determine that by error cause definite processing that the label determining unit 44 in the processing unit 36 carries out carries out according to following basic definite process:
(1) checks other scan-data of the cartridge that has produced error data, and determine whether to have produced error data;
(2) if all successful, determine whether to exist the dirt of bar coded sticker and/or scanning position unusual, and switch to the retry processing arbitrary scanning of cartridge;
(3) if all scanning results of cartridge are mistake, check the scanning result of cartridge of the front and back of this destination media box, if these also are mistake, based on the hypothesis of barcode reader 22 faults, the fault diagnosis that switches to barcode reader is handled;
(4) if do not satisfy the situation of (2) and (3),, switch to following label and determine program based on the non-existent hypothesis of bar coded sticker;
(5) determine in error data, whether to exist specific sign indicating number for bar code.
(6) if in error data, comprise specific sign indicating number for bar code, carry out following steps with determine this specific be whether the sign indicating number of bar code is to cause by diffuse reflection or by the pattern of cartridge.
(a) retrieval initial code and stop code; And
(b) determine whether that according to the bar code standard N/W ratio (N is the fillet width, and W is a wide width) is in standard value range.
If determine reference conditions (a) and (b) satisfy, it is stained and switch to the retry processing to be defined as bar coded sticker;
(7), determine whether that the sequence greater than the black pixel of threshold value or white pixel is present in the center of error data if do not satisfy condition (6).Exist if having, determine that bar coded sticker is not attached on the cartridge, and inform no label to high-order equipment (high-orderdevice) above the black pixel of threshold value or the sequence of white pixel; And
(8) if do not satisfy condition (7), whether relatively all error datas that scan of a cartridge, and specified data group are close.If not close, the bar coded sticker of determining to be attached on the cartridge is similar handwritten form label, otherwise, determine to be attached to bar coded sticker on the cartridge and be non-compliant label and with the high-order equipment of the information notification of improper label.
Figure 14 is the synoptic diagram according to list processing of the present invention.In Figure 14, in order to read the bar coded sticker that attaches on the cartridge in the box cabinet 24 that leaves library's device 10 in continuously, carrying robot 20 is positioned the top end as hurdle 24-1 under the control of control circuit 102, this barcode reader 22 is under the carrying of carrying robot 20 then, move up and down with the speed of rule and to carry out read operation, the scanning of one dimension CCD80 is opened and activated in simultaneously emitting led unit.Controller 14-1 and 14-2 among Fig. 1, and transmit control unit 16 includes in control circuit 102.
Figure 15 is the synoptic diagram at the list processing of particular bar 24-1.Barcode reader 22 is positioned at the cartridge 60-1 place of leaving in the hurdle 24-1 top unit by carrying robot 20, and when light emitting diode 74 unlatchings when illuminating this bar coded sticker 86-1, read by the scanning of one dimension CCD.
Figure 16 is for representing the synoptic diagram of list processor respectively.That is to say, in Figure 16 A, the label 86-1 place that reads the cartridge that the position is arranged in the top unit that is stored in hurdle 24-1 of barcode reader 22, and when carrying robot 20 moves down with the speed of rule, read.Figure 16 B is that barcode reader 22 arrives the view that is not pasted with bar coded sticker cartridge 60-6 place and reads this cartridge.Figure 16 C is the minimum storage unit that barcode reader 22 moves to hurdle 24-1, and has finished the synoptic diagram of the state of catalogue operation.
Figure 17 is the process flow diagram according to list processing of the present invention, and this process is as follows:
Step S1: the target hurdle of the particular bar in the box cabinet being arranged to list processing;
Step S2: will carry the top that robot 20 moves to the target hurdle, and barcode reader 22 is positioned at the cartridge position of top storage unit, when this carrying robot moves down with regular speed, read (catalogue operation) continuously then by the barcode reader execution;
Step S3: determine to finish catalogue and operate in the scan-data that is obtained whether have any error data,, enter step S4 if there is error data, otherwise termination routine;
Step S4: error data execution error data declaration is handled;
Step S5:, otherwise enter step S6 if the designated result of the reason of mistake is informed main frame and end process for there not being label; And
Step S6: exist the error data of label to carry out the retry processing for being confirmed as.
Figure 18, Figure 19, Figure 20, Figure 21 and Figure 22 determine the particular flow sheet that processing and Figure 17 step S4 handle to the retry of S7 for the representative error cause.The process of this process flow diagram has the content according to the program of cataloged procedure of the present invention.Figure 18 is in order to determine not have the definite process flow diagram of handling of error cause of label.Then, the process flow diagram of Figure 19 and Figure 20 is mainly the definite program of handling of fault of barcode reader.The process flow diagram of Figure 21 and Figure 22 is mainly the program that retry is handled.
The first, the error cause that is used for of Figure 18 determine to be handled to determine whether to exist or to lack the program description of process flow diagram of bar coded sticker as follows:
Step S1: in the same medium that extracts as the error data of processing target, read other scan-data.Read three scan-datas that comprise this error data according to the present invention;
Step S2: determine whether that all scan-datas are error data, and, if all scan-datas are error data, enter step S3, otherwise enter the step S26 in the processing of Figure 20 retry;
Step S3: determined whether the scan-data of front and back medium that all scan-datas are the medium of error data is normal.If data are normal, enter into step S4, otherwise, based on the hypothesis of barcode reader fault, the step S14 during the fault diagnosis that enters the barcode reader of Figure 20 is handled;
Step S4: since determined all scan-datas be misdata medium the front and back medium scanning for normal, determine that this barcode reader does not have fault, and do not have the hypothesis of label based on medium, and switch to and may further comprise the steps S5 and determine program to the label of step S13;
Step S5: the first, determine in error data, whether there is any bar code pattern.If bar code pattern exists, enter step S6, otherwise, enter the step S8 of Figure 19;
Step S6: determine in this bar code pattern, whether have initial code or stop code.If at least one existence in initial code or the stop code enters into step S7, otherwise, enter into step S8.Should determine that whether diffuse reflection or medium pattern caused based on the bar code pattern of this error data.
Step S7: determine that respectively fillet width/wide width ratio and fillet width are whether in standard value, if fillet width/wide width ratio and fillet are outside standard value, enter the step S8 of Figure 19, otherwise, has the hypothesis of fault based on barcode reader 22, during the fault diagnosis of barcode reader that enters the step S14 of Figure 20 is handled.Should determine stained based on bar code;
Step S8: determine whether the center that white pixel or black pixel sequence above threshold value are present in error data.If have the white pixel or the black pixel sequence that surpass threshold value, enter step S9, otherwise, enter step S11;
Step S9:, determine that medium does not have label owing to the white pixel or the black pixel sequence that do not exist at the center of error data above threshold value;
Step S10: error cause is determined that (cause of error specification) result informs main frame, and this result comprises that medium does not have definite result of label;
Step S11: under there is not situation above the white pixel of threshold value or black pixel sequence in the error data center, determine whether three scan-data all similar of medium.If three times scan-data is all similar, enters step S12, otherwise enter step S13;
Step S12: because all scan-data is all dissimilar, determine that it is the handwritten form label, enter step S10 and inform that to high-order equipment this determines the result; And
Step S13: because all scan-data all similar determine that it is for example non-compliant bar coded sticker 100 shown in Figure 12 B.Enter step S10 and inform that to main frame this determines the result.
As mentioned above,, and determine there is not bar code, and definite result of this no label is apprised of main frame, finishes program and the retry that need not medium is carried out maximum 15 location scannings is handled if error data is analyzed through the step S1-S10 of Figure 18 and Figure 19.
Secondly, the program of the fault diagnosis of barcode reader processing mainly is described with reference to the process flow diagram of Figure 20.The program that the fault diagnosis of this barcode reader is handled is mainly shown in following steps S14-S25:
Step S14: when in step S2, being error data for all scan-datas of a medium, or under the situation when the fillet width of this N/W ratio and bar code pattern is all within standard value in the step S7 of Figure 18, check the white/black ratio of this error data;
Step S15: if should white/black ratio undesired, enter step S16, otherwise the step S29 of the retry that enters Figure 21 in handling;
Step S16: white/black ratio is undesired, barcode reader 22 is positioned at the central region 96 of cartridge 60 by carrying robot 20;
Step S17: when this barcode reader was positioned at the central region of cartridge, the specific time shutter section that continues to expose as 150 steps (step is an operation unit of program), was then carried out location scanning, to export the accumulated result of one dimension CCD;
Step S18: determine whether success of the decoding of scan-data with location scanning data, if success, the step S35 during the retry that enters Figure 21 is handled, otherwise, enter step S19;
Step S19: carry out location scanning by being kept 250 steps the barcode reader time shutter in same position as step S16.Time shutter is than the time shutter of step S17 in long 100 steps in this case;
Step S20: check the whether success of decoding of the resulting scan-data of location scanning by 250 steps of time shutter, and if decode successfully, enter the step S35 in the retry processing of Figure 21, otherwise enter step S21;
Step S21: check white/black ratio based on the resulting scan-data of location scanning that passes through step S19;
Step S22:, enter the step S9 of Figure 19 if white/black ratio is undesired.In this case, being defined as this medium does not have bar coded sticker and informs main frame yet.If white/black ratio is normal, enter step S23;
Step S23: determine whether to be similar pattern by the scan-data that location scanning obtains, and if all be dissimilar pattern from scan-datas that location scanning obtains, enter step S24, otherwise enter step S25;
Step S24: determine when all scan-datas were dissimilar pattern, whether location scanning had repeated three times, if location scanning does not have triplicate, returns step S19, otherwise enter step S25 and
Step S25:, determine that barcode reader 22 has fault and informs main frame owing to be similar pattern from the data that three times location scanning obtained.
As mentioned above, in the program of step S14-S25, diagnostic routine is based on barcode reader 22 has fault and the out of order hypothesis of definite barcode reader to carry out.In other cases, determine not have copy and switch to retry and handle.
Secondly, program main reference Figure 21 of retry processing and the process flow diagram of Figure 22 are described.In this retry is handled, each upper area 94, central region 96 and the bottom section 98 of the label wall-attached surface 80 of bar coded sticker 86 are divided into five zones respectively, in brief, 15 zones among Figure 11 are carried out 15 scanning at most for the box that defines mistake like this.Figure 21 is the process flow diagram of first location scanning of maximum five scannings in these three zones.Figure 22 is in retry is handled, at the process flow diagram of each location scanning of maximum five scannings in two last zones.Shown in the following S26-S37 of program that handles for first retry of Figure 21:
Step S26: it is in the step S2 of Figure 18, to the situation of any mistake that once becomes in three scannings of a medium.In this case, detect the scanning position and the direction at the normal place of scan-data;
Step S27: the area information that obtains to be included in the successful position of scanning in the cartridge;
Step S28: move in the going up of appointment among the step S27 this barcode reader 22 or bottom section by this carrying robot 20, and be located the starting position of five scanning positions in this appointed area;
Step S29: it is in the step S15 of Figure 20, and is when this white/black ratio exists the hypothesis of fault to check based on barcode reader 22, white/the black abnormal situation of ratio.In this case, by carrying robot 20 barcode reader 22 is positioned at starting position as five positions of the central region 96 of the box 60 of target;
Step S30: carrying out the time shutter is the location scanning in 37 steps;
Step S31: determine the whether success of decoding of the scan-data that obtains by location scanning, and if decode successfully, enter step S35, otherwise, step S32 entered;
Step S32: the location scanning of carrying out 150 steps of time shutter;
Step S33: if decode successfully, enter step S35, otherwise, enter step S34;
Step S34: check whether location scanning has been carried out five times, and if do not carry out five times, return step S30, and move to next scanning position carrying out location scanning, otherwise, the step S38 of Figure 22 entered;
Step S35: it is step S31, step S33 at Figure 20 and the case of successful decoding of the location scanning in the arbitrary step among step S18 or the step S20, in this case, and scan-data relatively;
Step S36: if the scan-data that is compared is complementary, enter step S37, otherwise, enter step S34; And
Step S37: determine the scanning success that retry is handled, inform main frame decoded result and termination routine.
Then, the retry that is used for remaining two zone of cartridge of Figure 22 is handled shown in following S38-S46:
Step S38: barcode reader location is different from the starting position of the untreated areas of processing region, promptly Figure 21 remaining go up, in or in the bottom section any one;
Step S39: carrying out the time shutter is the location scanning in 37 steps;
Step S40: if decode successfully, enter step S44, otherwise, enter step S41;
Step S41: check whether location scanning has been carried out five times, and if location scanning do not carry out five times, return step S39, otherwise, enter step S42;
Step S42: check whether there is the zone of not carrying out location scanning, and if have the zone of not carrying out location scanning, return step S38, otherwise, step S43 entered;
Step S43: even, determine that retry finishes (retry out) and inform that this decoding of main frame is invalid because all location scanning programs have all been carried out 15 times, and decoding is still unsuccessful;
Step S44: it is the case of successful decoding of location scanning in step S39.Compare scan-data;
Step S45: if scan-data is complementary, enter step S46, otherwise, enter step S41; And
Step S46: the retry of determining location scanning is handled successfully, notifies this result of high-order equipment and termination routine.
Retry as the process flow diagram of Figure 21 and Figure 22 is handled shown, if in Figure 18 and Figure 19, can not determine and do not have label, if and can not determine that in Figure 20 there is fault in barcode reader simultaneously, location scanning is carried out 15 times at most in the retry of Figure 21 and Figure 22 is handled, and decoding gets nowhere and the retry processing finishes (retry out).If relevant in Figure 18 and Figure 19 do not have the error cause of bar coded sticker to determine that processing execution is undesired, there is not the cartridge of label for all, handle by the retry that location scanning is carried out for 15 times among Figure 21 and Figure 22, and this retry processing end, make it need long time to handle.
Perhaps, in the present invention, owing to do not have the medium of label to need not to carry out the retry processing to this, when producing error data in cataloged procedure, this processing time shortens, and can improve the performance of processing thus like this.
The present invention includes the suitable correction that does not break away from its target and advantage, and be not limited to digital value pointed in the foregoing description.Especially, about the hardware configuration of Fig. 1 and the device structure of Fig. 3-Fig. 7, the present invention can be applied to any library device, as long as it comprises in order to deposit the medium memory device of the cartridge that is pasted with bar coded sticker by processing unit; A plurality of recording/reproducing apparatus in order to record or reproducing medium box; In order to Host Based movement directive, between medium memory device and recording/reproducing apparatus transmission medium, as the carrying robot the medium forwarder; And barcode reader, it is in order to the line scanning by the one-dimensional image pixel, reads the bar coded sticker of the cartridge that the medium forwarder transported.
As mentioned above, according to the present invention, if in order to the catalogue operation of checking the type of institute's storage medium in device, scanned the recording medium that does not post bar coded sticker, extract error data out from the bar coded sticker scan-data that obtains by the catalogue operation, the execution error reason is determined to handle to determine not having label.Therefore, will inform that high-order equipment and program can finish and need not to switch to the retry handling procedure if do not have label.
No longer carry out unnecessary retry for the box that does not have label and handle, and eliminated for useless operation by the caused error data of medium that does not have label, thus the time of catalogue operation shortened, improved handling property thus.
In addition, handwritten form label, non-compliant label and barcode reader read failure also determine that by no label program is designated as error data together, and therefore the error data that produces in the catalogue operation can access suitable processing.
Claims (16)
1, a kind of library device comprises:
One medium memory device, it has a plurality of storage unit, is pasted with the recording medium of bar coded sticker in order to storage;
One recording/reproducing apparatus writes down or information reproduction in order to use this recording medium;
One medium forwarder is in order to transmit this recording medium between this medium memory device and this recording/reproducing apparatus; With
One reader, in order to reading the bar coded sticker that is carried on the recording medium on this medium forwarder optically by the line scanning of one-dimensional image pixel,
Wherein this library's device further comprises:
One list processing unit, in order to when moving this medium forwarder by reader by repeatedly scanning the bar coded sticker that each label reads this recording medium, and will read the result and preserve hereof; With
One error cause is determined processing unit, extract error data among the result in order to reading from be kept at described file, determine whether bar coded sticker exists, if determining bar coded sticker exists, carrying out default retry handles, if determine that bar coded sticker does not exist, report should be determined the result and need not to carry out retry operation.
2, library as claimed in claim 1 device, wherein, if for a recording medium all repeatedly scan-data be error data, and the reading result of the front and back medium of this recording medium is normal, then this error cause determines that processing unit makes a label determine processing unit based on the non-existent hypothesis of bar coded sticker, carries out one and determines program.
3, library as claimed in claim 2 device, wherein, this label determines whether processing unit definite bar code pattern in being defined as the scan-data of mistake exists, if and bar code pattern does not exist, if have black pixel or white pixel sequence at the center of data, then be defined as not having label above threshold value.
4, library as claimed in claim 3 device, wherein, if in being defined as the scan-data of mistake, have bar code pattern, this label determines that processing unit determines whether to exist initial code or stop code, if initial code and stop code all do not exist, if have black pixel or white pixel sequence at the center of data, then be defined as not having label above threshold value.
5, library as claimed in claim 3 device, wherein, if at least one in initial code or the stop code is present in the scan-data that is defined as mistake, this label determines that processing unit determines whether fillet width/wide width ratio and fillet width are positioned at standard value, if this fillet width/wide width ratio and this fillet width are positioned at outside the standard value, if there be white pixel or the black pixel sequence that surpasses threshold value in the center in data, then be defined as not having label.
6, as each described library device among the claim 3-5, wherein, the black pixel or the white pixel sequence that if there is no surpass threshold value, this label determines processing unit is determined whether similar from the repeatedly scan-data that same recording medium read, if and this repeatedly scan-data is similar, be defined as non-compliant label, otherwise, be defined as the handwritten form label.
7, library as claimed in claim 2 device, wherein, if all repeatedly scan-datas for this bar coded sticker are error data, and when the reading result of this front and back recording medium was all undesired, this error cause determined that processing unit makes a reader fault determine that processing unit exists the hypothesis of fault to carry out one based on reader and determines program.
8, library as claimed in claim 7 device, wherein, this reader fault determines that processing unit determines the white/black ratio of this scan-data, if it is undesired to be somebody's turn to do white/black ratio, carry out a location scanning, when moving to the recording medium place that scans misdata at this reader by this medium forwarder and being fixed on this position, read by the exposure preset time, if this scanning were broken down and this white/black ratio would be normal, repeat this location scanning pre-determined number, if and all this scan-data all similar repeatedly, determine that this reader has fault.
9, library as claimed in claim 8 device, wherein, if this location scanning breaks down and should white/black ratio undesired, this reader fault determining unit determines there is not label.
10, library as claimed in claim 1 device, wherein, in this error cause determines that a retry of processing unit is handled, this reader moves to this recording medium place that scans error data and is fixed on this position by the medium forwarder when, carry out location scanning, to read, make the reading frequency in a predetermined read range become the several times of the sweep frequency of this list processing unit by continuing exposure in the section at the fixed time.
11, library as claimed in claim 10 device, wherein, in error cause determines that this retry of processing unit is handled, this reading range of this recording medium is divided into a upper area, a central region and a bottom section, and for each zone, this location scanning is carried out five times at least with predetermined mobile step pitch.
12, a kind of method that is used for the control chart library arrangement, this library's device comprises: a medium memory device, it has a plurality of storage unit, in order to deposit the recording medium that is pasted with bar coded sticker; One recording/reproducing apparatus writes down or information reproduction in order to use this recording medium; One medium forwarder is in order to transmit this recording medium between this medium memory device and this recording/reproducing apparatus; With a reader, in order to reading the bar coded sticker that is carried on the recording medium on this medium forwarder optically by the line scanning of one-dimensional image pixel,
Comprise the steps: in order to this method of controlling this library's device
One list processing step, in order to when moving this medium forwarder by reader by repeatedly scanning the bar coded sticker that each label reads this recording medium, and will read the result and preserve hereof; With
One error cause is determined treatment step, extract error data among the result in order to reading from be kept at described file, determine whether to exist bar coded sticker, if determining bar coded sticker exists, carry out default retry treatment step, if and determined that bar coded sticker does not exist, report would be determined the result and be need not to carry out retry operation.
13, as claimed in claim 12 in order to control the method for this library's device, wherein, if for a recording medium all repeatedly scan-data be error data, and the reading result of front and back recording medium is normally, this error cause determines that treatment step makes a label determine treatment step based on the non-existent hypothesis of bar coded sticker, carries out one and determines to handle.
14, as claimed in claim 13 in order to control the method for this library's device, wherein, this label determines whether treatment step definite bar code pattern in being defined as the scan-data of mistake exists, if and bar code pattern does not exist, if have black pixel or white pixel sequence at the center of data, then be defined as not having label above threshold value.
15, as claimed in claim 14 in order to control the method for this library's device, wherein, have bar code pattern if be defined as in the scan-data of mistake, this label determines that treatment step determines whether to exist initial code or stop code, if and initial code and stop code all do not exist, if have black pixel or white pixel sequence at the center of data, then be defined as not having label above threshold value.
16, as claimed in claim 14 in order to control the method for this library's device, wherein, if at least one in initial code or the stop code is present in the scan-data that is defined as mistake, this label determines that treatment step determines whether fillet width/wide width ratio and fillet width are positioned at standard value, if this fillet width/wide width ratio and this fillet width are positioned at outside the standard value, if there be white pixel or the black pixel sequence that surpasses threshold value in the center in data, then be defined as not having label.
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5450385A (en) * | 1993-08-27 | 1995-09-12 | International Business Machines Corporation | Determination of status of storage cells in an automated storage and retrieval system |
| CN1203402A (en) * | 1997-06-19 | 1998-12-30 | 富士通株式会社 | Bar code scanner and bar code reading method |
| US6246642B1 (en) * | 1999-04-13 | 2001-06-12 | Hewlett-Packard Company | Automated optical detection system and method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5450385A (en) * | 1993-08-27 | 1995-09-12 | International Business Machines Corporation | Determination of status of storage cells in an automated storage and retrieval system |
| CN1203402A (en) * | 1997-06-19 | 1998-12-30 | 富士通株式会社 | Bar code scanner and bar code reading method |
| US6246642B1 (en) * | 1999-04-13 | 2001-06-12 | Hewlett-Packard Company | Automated optical detection system and method |
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