JP6923259B2 - Judgment device, judgment system, judgment method and judgment program - Google Patents

Description

The present invention relates to a determination device, a determination system, a determination method, and a determination program.

When reading a barcode label, the barcode label may not be read correctly due to the quality of the barcode label, the sticking position, the reflection of the light source of the barcode reader, or the like. If the barcode label could not be read correctly, retries were performed until the barcode label could be read while changing the exposure value of the barcode reader. However, if the set exposure value and the exposure value suitable for reading are significantly different, or if there is an influence of reflection, the retry operation must be repeated a plurality of times, which causes a problem that reading takes time. there were.
In order to solve such a problem, a technique is disclosed in which the positions of the barcode label and the barcode reader are relatively moved and read again.

Japanese Patent No. 6296537

However, the positions of the barcode labels to be read are not always the same. In the above-mentioned technique, after repeating retries while changing the exposure value, retries are repeated by changing the position of the barcode reader, which takes a long time to read.

Therefore, an object of the present invention is to provide a determination device, a determination system, a determination method, and a determination program that solve the above-mentioned problems.

In order to solve the above problems, the present invention proposes the following means.
According to one aspect of the present invention, the determination device moves the reading means capable of reading the predetermined identification information by signal-processing the predetermined voltage value obtained by the light reception and the reading position of the reading means. The identification information acquisition means for acquiring the identification information read by the identification information reading device including the means and the exposure value setting means for setting the exposure value of the reading means, and the identification information acquisition means acquired by the identification information acquisition means. a first determination means for determining the number of characters included in the identification information, based on the number of the first determination means determines the character, the sensitivity or the moving means of the reading device which is set by the exposure value setting means A control signal output that outputs a control signal that controls the identification information reading device based on the result of determination by the second determination means and the second determination means that determines which of the movement amounts for moving the reading means is controlled. Provide means.

Further, according to another aspect of the present invention, the determination method includes a reading means capable of reading predetermined identification information by signal processing a predetermined voltage value obtained by light reception, and the reading means for the identification. Identification for acquiring the identification information read by an identification information reading device including a moving means for moving the reading position, which is a position for reading information, and an exposure value setting means for setting the exposure value of the reading means. an information acquisition step, wherein a first determination step of determining the number of characters contained in the acquired identification information by the identification information acquiring step, based on the number of characters is determined by the first determination step, the exposure value The second determination step of determining whether the sensitivity of the reading means set by the setting means or the movement amount of the moving means to move the reading means is determined, and the result determined by the second determination step. Based on this, it has a control signal output step for outputting a control signal for controlling the identification information reading device.

Further, according to another aspect of the present invention, the determination program includes a reading means capable of reading predetermined identification information by signal processing a predetermined voltage value obtained by light reception to a computer, and the reading means. The identification information read by the identification information reading device including the moving means for moving the reading position, which is the position where the identification information is read, and the exposure value setting means for setting the exposure value of the reading means. an identification information acquiring step of acquiring, based on the number of the first determination step of determining the number of characters included in the identification information acquired by the identification information acquiring step, is determined by the first determination step character, It is determined by the second determination step of determining whether the sensitivity of the reading means set by the exposure value setting means or the moving amount of the moving means to move the reading means is controlled, and the second determination step. Based on the result, the control signal output step of outputting the control signal for controlling the identification information reading device is executed.

According to the present invention, it is possible to provide a determination device, a determination system, a determination method, and a determination program that do not take a long time to read.

It is a figure which shows an example of the structure of the magnetic tape library apparatus in this embodiment. It is a figure which shows an example of the top view of the magnetic tape library apparatus in this embodiment. It is a figure explaining an example of the case where the bar code reading device in this embodiment reads a bar code label. It is a figure which shows an example of the functional structure of the bar code reader in this embodiment. It is a figure which shows an example of the functional structure of the determination device in this embodiment. It is a figure which shows an example of the bar code label in this embodiment. It is a figure which shows an example of the case where the bar code label in this embodiment cannot be read. It is a figure which shows an example of a series of operations of the determination apparatus in this embodiment. It is a figure which shows an example of a series of operations when the determination apparatus in this Embodiment controls a bar code reading apparatus. It is a figure which shows the minimum structure in this embodiment. It is a flowchart which shows the minimum structure in this embodiment.

[Magnetic Tape Library Device 100]
Hereinafter, the magnetic tape library device 100 according to the embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a diagram showing an example of the configuration of the magnetic tape library device 100 in the present embodiment. An example of the configuration of the magnetic tape library device 100 will be described with reference to the figure.
The magnetic tape library device 100 includes a library 11 and an accessor 14. Hereinafter, the direction in which the accessor 14 moves according to the three-dimensional Cartesian coordinate system of the x-axis, y-axis, and z-axis will be described.

The library 11 stores a plurality of media 17.
The accessor 14 searches for a specific medium 17 from the plurality of media 17 stored in the library 11, and conveys the searched medium 17 to a predetermined position.
In this example, an example will be described in which the medium 17 is a magnetic tape to which identification information is attached. The medium 17 is not limited to this example, and may be any medium that can be identified by being given a predetermined identifier and can be conveyed by the accessor 14.
In this example, an example in which the identification information is the barcode label 18 will be described, but identification information other than the barcode label 18 such as a predetermined two-dimensional code may be used.
Hereinafter, the accessor 14 will also be referred to as a means of transportation.

The library 11 includes a plurality of slots 12 and a plurality of drives 13.
A plurality of slots 12 are provided in the xy plane. The medium 17 is stored in each slot 12.
A plurality of drives 13 are provided in the xy plane. The drive 13 reads the data of the medium 17. The drive 13 writes predetermined data to the medium 17.
The accessor 14 searches for a specific medium 17 by reading the barcode label 18 attached to the medium 17, and transports the searched medium 17 to either a predetermined slot 12 or a drive 13. That is, the accessor 14 searches for a barcode attached to the medium provided on the xy plane, and conveys the specific medium 17 to either the predetermined slot 12 or the drive 13.

The accessor 14 includes a medium transport mechanism 15 and a bar code reader 16.
The barcode reader 16 emits a predetermined light on the barcode label 18 attached to the medium 17, and receives the reflected light reflected by the barcode label 18. The bar code reader 16 reads the bar code label 18 attached to the medium 17 by signal processing a predetermined voltage value obtained by receiving light. Hereinafter, the barcode reader 16 will also be referred to as a reading means.
When the bar code reader 16 reads a specific value from the bar code label 18 attached to the medium 17, the medium transport mechanism 15 draws the medium 17 from the slot 12 or the drive 13. The accessor 14 conveys the medium transfer mechanism 15 in the x-axis direction and the y-axis direction. The accessor 14 moves the medium transfer mechanism 15 to the transfer destination slot 12 or drive 13, and then pushes the medium 17 in the medium transfer mechanism 15 into the transfer destination slot 12 or drive 13.

The reading operation of the barcode label 18 is performed, for example, when the power of the magnetic tape library device 100 is turned on, when the medium 17 stored in the slot 12 is replaced, or when there is a request from the upper host.

FIG. 2 is a diagram showing an example of a top view of the magnetic tape library device 100 according to the present embodiment. FIG. 3 is a plan view of the magnetic tape library device 100 described with reference to FIG. 1 in the xy plane. The configuration described with reference to FIG. 1 may be omitted by assigning the same reference numerals.
The movement of the accessor 14 will be described with reference to the figure. In this example, the accessor 14 moves on the x-z plane.
When the accessor 14 reads the barcode label 18 attached to the medium 17, the detection range of the barcode reader 16 moves to a position where the specific medium 17 can be detected. In this example, the barcode reader 16 has a detection width W1. The accessor 14 moves the detection width W1 of the barcode reader 16 to a position where the barcode label 18 attached to the medium 17 can be read.

FIG. 3 is a diagram illustrating an example in the case where the barcode reading device 50 in the present embodiment reads the barcode label 18. In this example, the accessor 14 moves on the x-z plane. The barcode reader 16 provided in the accessor 14 reads the barcode label 18.
Here, a device including at least an accessor 14 (moving means) and a bar code reader 16 (reading means) is also referred to as a bar code reading device 50 (identification information reading device). That is, the barcode reading device 50 (identification information reading device) includes a barcode reader 16 (reading means) capable of reading predetermined identification information and an accessor 14 for moving the reading position of the barcode reader 16 (reading means). To be equipped.
The accessor 14 moves the barcode reader 50 in the x-axis direction and the z-axis direction.

The barcode reader 16 included in the barcode reader 50 can read the barcode label 18 existing in the reading range 19. The reading range 19 has a detection width W1 and a detection height H1. In this example, the accessor 14 moves the barcode reading device 50 to a position where the barcode label 18 attached to the medium 17 is included in the reading range 19, and reads the barcode label 18.

FIG. 4 is a diagram showing an example of the functional configuration of the barcode reader 16 in the present embodiment.
The barcode reader 16 includes a sensor unit 161 and a signal processing unit 162. The bar code reader 16 processes the signal detected by the sensor unit 161 by the signal processing unit 162, and acquires the identification information indicated by the bar code label 18.

The sensor unit 161 includes a light source 163 and a light receiving element 164.
The light source 163 is, for example, a laser diode. The light source 163 emits a laser beam toward the barcode label 18. The light source 163 is not limited to this example, and may be another photodiode.
The light receiving element 164 receives the reflected light of the light emitted by the light source 163 toward the barcode label 18. The light receiving element 164 is, for example, a photo sensor or the like.
In this example, the case where the light receiving element 164 is a light receiving element whose exposure value can be changed will be described.

The signal processing unit 162 includes an analog amplification unit 165, a digital conversion unit 166, and a decoding unit 167.
The analog amplification unit 165 acquires the difference in brightness of the light component reflected by the barcode label 18 as a voltage value. The analog amplification unit 165 amplifies the acquired voltage value and outputs the amplified voltage value to the digital conversion unit 166.
The digital conversion unit 166 digitally converts the voltage value amplified by the analog amplification unit 165. For example, the digital conversion unit 166 digitally converts a white portion having a high reflectance into 0 and a black portion having a low reflectance into 1. The digital conversion unit 166 outputs the digitally converted value to the decoding unit 167.

The decoding unit 167 decodes the value digitally converted by the digital conversion unit 166. The decoding unit 167 provides the decoded value to the determination device 10 included in the accessor 14.
In this example, the determination device 10 will be described as being provided in the accessor 14, but the determination device 10 may be provided in a place where the barcode reading device 50 can be controlled.
When the decoding unit 167 fails to decode, the determination device 10 changes the exposure value of the light receiving element 164 or changes the position of the barcode reading device 50 to perform a retry.

[Functional configuration of judgment system 1]
FIG. 5 is a diagram showing an example of the functional configuration of the determination system 1 in the present embodiment. The functional configuration of the determination device 10 will be described with reference to FIG.
The determination system 1 includes a barcode reading device 50 and a determination device 10.
The determination device 10 includes an identification information acquisition unit 21, a first determination unit 22, a second determination unit 23, and a control signal output unit 24. The determination device 10 acquires the reading information IR from the barcode reading device 50 and outputs the control signal IC based on the reading information IR.

The identification information acquisition means 21 acquires the read information IR read by the barcode reading device 50 (identification information reading device) by a predetermined communication means. The read information IR includes the identification information included in the barcode label 18.
The identification information acquisition means 21 provides the acquired read information IR to the first determination means 22.

The first determination means 22 acquires the read information IR from the identification information acquisition means 21. The first determination means 22 determines the amount of information included in the identification information IR acquired by the identification information acquisition means 21.
Here, the amount of information included in the read information IR may be, for example, the number of characters included in the read information IR when the identification information is included in the barcode label 18.
The first determination means 22 provides the determination result to the second determination means 23 as the first determination information IJ1.

The second determination means 23 acquires the first determination information IJ1 from the first determination means 22. The second determination means 23 determines whether the sensitivity of the barcode reader 16 (reading means) included in the barcode reading device 50 or the medium transport mechanism 15 (moving means) is based on the amount of information determined by the first determination means 22. Determine if you want to control.
The second determination means 23 provides the determination result to the control signal output means 24 as the second determination information IJ2.

The control signal output means 24 acquires the second determination information IJ2 from the second determination means 23. The control signal output means 24 outputs a control signal IC for controlling the barcode reading device 50 (identification information reading device) by a predetermined communication method based on the result determined by the second determination means 23.

FIG. 6 is a diagram showing an example of a barcode in the present embodiment. An example of the barcode label 18 in this example will be described with reference to the figure.
The barcode label 18 is composed of a bar (black) and a space (white). The bar has a thick bar (wide bar or WB) and a thin bar (narrow bar or NB), and the space has a thick space (wide space or WS) and a narrow space (narrow space or NS).
One character is composed of nine bars (black) and spaces (white) in total. The left and right ends are start / stop characters (“*”). The barcode label 18 includes a start / stop character (“*”) and is composed of 10 characters. Each character is separated by a small space. That is, the barcode label 18 is composed of 99 bars (black) and spaces (white) in total.

Of the nine bars (black) and spaces (white) that make up one character, three are thick bars or spaces. The thick bar / thick space has three times the width of the thin bar / thin space. For example, if the thin bar / thin space is 0.4 mm (millimeters), the thick bar / thick space is 1.2 mm. In this case, one character is 6.4 mm and 10 characters are 64 mm.

FIG. 7 is a diagram showing an example in the case where the barcode label 18 in the present embodiment cannot be read. In the figure, an example in the case where the barcode label 18 cannot be read will be described.
In this example, the bar code reader 16 cannot read the bar code label 18 due to the influence of reflection in the range A2. In the range A1, the barcode reader 16 can read the barcode label 18 because it is not affected by reflection.
In this example, since the range A2 is 2 characters (that is, 12.8 mm in the case of the above-mentioned example), the determination device 10 determines that the right end is affected by the reflection of 2 characters.

[A series of operations of the determination device 10]
FIG. 8 is a diagram showing an example of a series of operations of the determination device 10 in the present embodiment. A series of operations of the determination device 10 will be described with reference to the figure.
(Step S110) The control signal output means 24 acquires storage / reading information stored in a non-volatile memory (not shown). The stored reading information includes the exposure value of the barcode reader 16 and the reading position of the accessor 14.
(Step S112) The control signal output means 24 outputs the control signal IC so as to move the accessor 14 to the reading position of the accessor 14 indicated by the acquired storage reading information. The control signal output means 24 sets the exposure value of the barcode reader 16 shown in the acquired memory reading information in the barcode reader 16.
(Step S114) The barcode reader 16 reads the barcode label 18 with the exposure value set in step S112. The identification information acquisition means 21 acquires the result read by the barcode reader 16 from the barcode reading device 50 as the reading information IR. The identification information acquisition means 21 provides the acquired read information IR to the first determination means 22.

(Step S116) The first determination means 22 determines the amount of information included in the read information IR. The first determination means 22 provides the determination result to the second determination means 23 as the first determination information IJ1. When the amount of information determined by the first determination means 22 is equal to or greater than a predetermined amount (that is, when the reading is normal) (step S116; YES), the second determination means 23 performs the process in step S128. Proceed to. When the amount of information determined by the first determination means 22 is less than a predetermined amount (that is, when the reading is abnormal) (step S116; NO), the second determination means 23 sets the process to step S118. Proceed.

(Step S118) When the reading is abnormal in step S116, the retry count determination unit (not shown) determines whether or not the retry count has reached a predetermined upper limit. Here, the number of retries is the number of times the barcode reader 16 has read the same medium 17. When the number of retries reaches a predetermined upper limit value (that is, when retries are over) (step S118; YES), the retry count determination unit ends the process. When the number of retries has not reached a predetermined upper limit value (that is, when the number of retries is not over) (step S118; NO), the retry count determination unit proceeds to step S120.

(Step S120) The second determination means 23 performs image analysis. The second determination means 23 provides the result of the image analysis to the control signal output means 24 as the second determination information IJ2.
(Step S122) The control signal output means 24 controls the barcode reading device 50 based on the acquired first determination information IJ1. When the control signal output means 24 moves the barcode reading device 50 by the accessor 14 (that is, when the position movement is required) (step S122; YES), the control signal output means 24 advances the process to step S126. When the control signal output means 24 changes the sensitivity of the barcode reader 16 included in the barcode reader 50 (that is, when movement is not required) (step S122; NO), the process proceeds to step S124.

(Step S124) The barcode reader 16 changes the exposure value. After changing the exposure value, the barcode reader 16 advances the process to step S114.
In step S124, the accessor 14 does not have to change the position of the barcode reader 16.
(Step S126) The accessor 14 moves the position of the barcode reader 16 based on the second determination information IJ2 acquired as a result of the image analysis in step S120. After moving the position of the barcode reader 16, the accessor 14 advances the process to step S114.
In step S124, the barcode reader 16 does not have to change the exposure value.

(Step S128) In this example, the control signal output means 24 further includes a storage control unit (not shown). The storage control unit stores the result of determination by the second determination means 23 in a non-volatile memory (not shown).
When the reading is normally completed, the control signal output means 24 stores the exposure value at the time of reading and the position of the accessor at the time of reading in the non-volatile memory.
In this example, the non-volatile memory stores information indicating the exposure value and the position of the accessor for each slot 12.

The position of the medium 17 may be stored in the same slot 12, but may be moved to another slot 12. In that case, the non-volatile memory may be configured to store information indicating the exposure value and the position of the accessor for each medium 17 instead of each slot 12.

[A series of operations of image analysis]
FIG. 9 is a diagram showing an example of a series of operations when the determination device 10 in the present embodiment controls the barcode reading device 50. An example of a series of operations when the determination device 10 in the present embodiment controls the barcode reading device 50 will be described with reference to the figure. Specifically, the series of operations described with reference to FIG. 8 is an example of step S120 in FIG.

(Step S130) The second determination means 23 confirms the number of characters included in the information acquired from the barcode reading device 50. Specifically, the number of characters included in the information shown in the first determination information IJ1 acquired from the first determination means 22 is confirmed. The second determination means 23 advances the process to step S132.
(Step S132) If the second determination means 23 does not recognize five or more characters based on the first determination information IJ1 (step S132; NO), the process proceeds to step S148. When the second determination means 23 recognizes five or more characters (step S132; YES), the process proceeds to step S133.

(Step S133) The second determination means 23 calculates the position of the unrecognizable character. The second determination means 23 determines the direction in which the barcode reader 16 (reading means) is moved based on the position where the information included in the reading information IR acquired by the identification information acquisition means 21 is missing. Further, the second determination means 23 calculates the moving distance from the calculated number of unrecognizable characters.
For example, in the example shown in FIG. 6, it is 6.4 mm per character. For example, in the example of FIG. 7, the two characters on the right side are unrecognizable characters. In this case, the position of the unrecognizable character is at the right end, and the moving distance is 12.8 mm (6.4 mm × 2 characters). That is, the amount of movement that moves the barcode reader 16 (reading means) corresponds to the amount of information contained in the barcode reader 16 (identification information).
The second determination means 23 calculates the position of the unrecognizable character and the movement distance, and then proceeds to the process in step S134.

(Step S134) When the second determination means 23 determines that the position of the unrecognizable character is on the right side (step S134; YES), the second determination information IJ2 including information for moving the barcode reader 16 to the right side. Is provided to the control signal output means 24, and the process proceeds to step S146. When the second determination means 23 determines that the position of the unrecognizable character is not on the right side (step S134; NO), the process proceeds to step S136.

(Step S136) When the second determination means 23 determines that the position of the unrecognizable character is on the left side (step S136; YES), the second determination information IJ2 including information for moving the barcode reader 16 to the left side. Is provided to the control signal output means 24, and the process proceeds to step S144. When the second determination means 23 determines that the position of the unrecognizable character is not on the left side (step S136; NO), the process proceeds to step S138.

(Step S138) When the second determination means 23 determines that the position of the unrecognizable character is neither the right side nor the left side, the central portion of the barcode label 18 cannot be read. In this case, when the accessor 14 can move upward (that is, in the z-axis direction in FIGS. 1 to 3) (step S138; YES), the second determination means 23 moves the barcode reader 16 upward. The second determination information IJ2 including the information to be moved is provided to the control signal output means 24, and the process proceeds to step S140. When the accessor 14 is not movable upward (step S138; NO), the second determination means 23 outputs the second determination information IJ2 including the information for moving the barcode reader 16 downward to the control signal output means. 24, and the process proceeds to step S142.

(Step S140) The control signal output means 24 outputs a control signal IC including information for moving the barcode reader 16 upward to the barcode reader 50, and ends the process.
(Step S142) The control signal output means 24 outputs a control signal IC including information for moving the barcode reader 16 downward to the barcode reader 50, and ends the process.
(Step S144) The control signal output means 24 outputs a control signal IC including information for moving the barcode reader 16 to the left side to the barcode reader 50, and ends the process.
(Step S146) The control signal output means 24 outputs a control signal IC including information for moving the barcode reader 16 to the right side to the barcode reader 50, and ends the process.
In steps S140, S142, S144, and S146, the exposure value of the barcode reader 16 does not have to be changed.

(Step S148) When the barcode reading device 50 cannot recognize more than a predetermined character (5 characters in this example), the position is not moved because it cannot be recognized in a wide range, and the barcode reader 16 changes the sensitivity. .. In this case, in this example, the barcode reader 16 changes the exposure value. The control signal output means 24 outputs a control signal IC including information for changing the exposure value of the barcode reader 16 to the barcode reader 50, and ends the process.
The sensitivity of the barcode reader 16 may be configured by other than changing the exposure value. For example, it may be configured by changing the output of the light source 163 included in the sensor unit 161 of the barcode reader 16 or changing the amplification factor of the analog amplification unit 165 included in the signal processing unit 162.

[Summary of effects of embodiments]
According to the determination device 10 of the present embodiment, as a result of image analysis of the information read by the barcode reader 16, the retry method is determined based on the amount of information read by the barcode reader 16. Specifically, it is determined whether to change the exposure value of the barcode reader 16 or the position of the accessor 14 according to the number of unrecognizable characters.
That is, by determining the retry method suitable for the difficult-to-read barcode label 18, the determination device 10 can read the predetermined retries without mechanically repeating the retries in order.
Therefore, according to the present embodiment, the time required for reading the barcode label 18 can be reduced.

Further, according to the determination device 10 of the present embodiment, when the number of unrecognizable characters is equal to or more than a predetermined value, a retry is performed after changing the exposure value.
In this case, the barcode reading device 50 can read the barcode label 18 by retrying without moving the accessor 14. That is, the time required to read the barcode label 18 can be reduced.

Further, according to the determination device 10 of the present embodiment, as a result of reading by the barcode reading device 50, the accessor 14 is moved in the direction in which the information is lacking, and then a retry is performed. Therefore, according to the present embodiment, the accessor 14 can be moved to a position where the barcode label 18 can be read. That is, the time required to read the barcode label 18 can be reduced.

Further, according to the determination device 10 of the present embodiment, the movement amount for moving the accessor 14 is determined based on the amount of information of the missing information as a result of reading by the barcode reading device 50. Therefore, according to the present embodiment, the accessor 14 can be moved by the amount of the unrecognizable character. That is, the time required to read the barcode label 18 can be reduced.

Further, according to the determination device 10 of the present embodiment, by providing the storage control unit, it is possible to store the exposure value information of the barcode reader 16 and the movement amount information of the accessor 14. That is, when the barcode label 18 is rewritten, the information required for the rewrite can be updated. In this case, since the rewrite information is stored until the medium 17 moves to another slot 12, it does not take time to rewrite again. That is, the time required to read the barcode label 18 can be reduced.

Further, according to the determination device 10 of the present embodiment, the identification information attached to the medium 17 is a barcode. According to the present embodiment, since the identification information is a barcode, the medium 17 can be easily identified.

Further, according to the determination device 10 of the present embodiment, the amount of information is the number of characters. Therefore, the determination device 10 can easily perform image analysis. That is, the rewriting method can be determined without requiring complicated image processing.

FIG. 10 is a diagram showing a minimum configuration of the determination device 10 according to each embodiment of the present invention.
FIG. 11 is a flowchart showing the minimum configuration of the determination device 10 according to each embodiment of the present invention.
The determination device 10 may include at least the identification information acquisition means 21, the first determination means 22, the second determination means 23, and the control signal output means 24.
The identification information acquisition means 21 includes a barcode reader 16 (reading means) capable of reading predetermined identification information, and an accessor 14 (moving means) for moving the reading position of the barcode reader 16 (reading means). The read information IR (identification information) read by the reading device 50 (identification information reading device) is acquired (step S10).
The first determination means 22 determines the amount of information included in the read information IR (identification information) acquired by the identification information acquisition means 21 (step S20).
The second determination means 23 determines whether to control the sensitivity of the barcode reader 16 (reading means) or the accessor 14 (moving means) based on the amount of information determined by the first determination means 22 (step S30). ).
The control signal output means 24 outputs a control signal IC for controlling (identification information reading device) from the barcode reading device 50 based on the result determined by the second determining means 23 (step S40).

The determination device 10 described above has a computer system inside. The process of the determination method using the determination device 10 described above is stored in a computer-readable recording medium in the form of a program, and the above processing is performed by the computer reading and executing this program. Here, the computer-readable recording medium refers to a magnetic disk, a magneto-optical disk, a CD-ROM, a DVD-ROM, a semiconductor memory, or the like. Further, this computer program may be distributed to a computer via a communication line, and the computer receiving the distribution may execute the program.

The determination device 10 is recorded by recording a program for realizing the function of the determination device 10 in FIG. 5 on a computer-readable recording medium, causing the computer system to read the program recorded on the recording medium, and executing the program. May be configured. The term "computer system" as used herein includes hardware such as an OS and peripheral devices. Further, the "computer system" shall also include a WWW system provided with a homepage providing environment (or display environment). Further, the "computer-readable recording medium" refers to a portable medium such as a flexible disk, a magneto-optical disk, a ROM, or a CD-ROM, or a storage device such as a hard disk built in a computer system. Furthermore, a "computer-readable recording medium" is a volatile memory (RAM) inside a computer system that serves as a server or client when a program is transmitted via a network such as the Internet or a communication line such as a telephone line. In addition, it shall include those that hold the program for a certain period of time.

Further, the program may be transmitted from a computer system in which this program is stored in a storage device or the like to another computer system via a transmission medium or by a transmission wave in the transmission medium. Here, the "transmission medium" for transmitting a program refers to a medium having a function of transmitting information, such as a network (communication network) such as the Internet or a communication line (communication line) such as a telephone line. Further, the above program may be for realizing a part of the above-mentioned functions. Further, a so-called difference file (difference program) may be used, which can realize the above-mentioned functions in combination with a program already recorded in the computer system.

1 Judgment system 10 Judgment device 100 Magnetic tape library device 11 Library 12 Slot 13 Drive 14 Accessor 15 Media transfer mechanism 16 Bar code reader 17 Medium 18 Bar code label 19 Reading range 21 Identification information acquisition means 22 First judgment means 23 Second judgment Means 24 Control signal output means 50 Bar code reader 161 Sensor unit 162 Signal processing unit 163 Light source 164 Light receiving element 165 Analog amplification unit 166 Digital conversion unit 167 Decoding unit IR reading information IJ1 First judgment information IJ2 Second judgment information IC control signal

Claims (8)

A reading means capable of reading predetermined identification information by signal processing a predetermined voltage value obtained by light reception, a moving means for moving the reading position of the reading means, and an exposure for setting an exposure value of the reading means. An identification information acquisition means for acquiring the identification information read by an identification information reading device including a value setting means, and an identification information acquisition means.
A first determination means for determining the number of characters included in the identification information acquired by the identification information acquisition means, and
Based on the number of characters determined by the first determination means, it is determined whether the sensitivity of the reading means set by the exposure value setting means or the movement amount by which the moving means moves the reading means is controlled. Second judgment means and
A determination device including a control signal output means for outputting a control signal for controlling the identification information reading device based on the result of determination by the second determination unit. The determination device according to claim 1, wherein the second determination means determines a direction in which the reading means is moved based on a position where a character included in the identification information acquired by the identification information acquisition means is missing. The determination device according to claim 1 or 2 , wherein the movement amount for moving the reading means corresponds to the number of characters included in the identification information. The determination device according to any one of claims 1 to 3 , further comprising a storage control unit for storing the result of determination by the second determination means. The determination device according to any one of claims 1 to 4 , wherein the identification information is a barcode. The determination device according to any one of claims 1 to 5,
A determination system including the identification information reading device controlled by the determination device. A reading means capable of reading a predetermined identification information by signal processing a predetermined voltage value obtained by light reception, a moving means for moving a reading position which is a position where the reading means reads the identification information, and a moving means . An identification information acquisition step of acquiring the identification information read by an identification information reading device including an exposure value setting means for setting an exposure value of the reading means, and an identification information acquisition step.
A first determination step for determining the number of characters included in the identification information acquired by the identification information acquisition step, and
Based on the number of characters determined by the first determination step, it is determined whether the sensitivity of the reading means set by the exposure value setting means or the moving amount by which the moving means moves the reading means is controlled. The second judgment step to be done and
A determination method including a control signal output step that outputs a control signal for controlling the identification information reading device based on the result determined by the second determination step. On the computer
A reading means capable of reading a predetermined identification information by signal processing a predetermined voltage value obtained by light reception, a moving means for moving a reading position which is a position where the reading means reads the identification information, and a moving means . An identification information acquisition step of acquiring the identification information read by an identification information reading device including an exposure value setting means for setting an exposure value of the reading means, and an identification information acquisition step.
A first determination step for determining the number of characters included in the identification information acquired by the identification information acquisition step, and
Based on the number of characters determined by the first determination step, it is determined whether the sensitivity of the reading means set by the exposure value setting means or the moving amount by which the moving means moves the reading means is controlled. The second judgment step to be done and
A determination program that executes a control signal output step that outputs a control signal that controls the identification information reading device based on the result determined by the second determination step.

Images