JP2012118779A - Code analysis system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a code analysis system in which an unreadable factor is analyzed in real time in a simple configuration and a solution of the unreadable factor can be promptly implemented.SOLUTION: An analysis-side terminal 11 acquires a code image being captured by a photo-detection sensor 28 via a communication interface 16 or the like in real time (without a time lag) and displays thus acquired code image on a display section 15 in real time. On the basis of an information code C contained in the code image displayed on the display section 15, if it is difficult to decode the information code C, the analysis-side terminal 11 then analyzes an unreadable factor and outputs solution information for solving the unreadable factor to an optical information reading apparatus 20 via the communication interface 16 or the like. If it is difficult to decode the information code C contained in the code image, the optical information reading apparatus 20 then decodes the information code C while being remotely controlled by the analysis-side terminal 11 in accordance with the solution information.

Description

  The present invention relates to a code analysis system that analyzes a non-read factor when an information code cannot be decoded by a reading device that reads the information code.

  2. Description of the Related Art Conventionally, a code reading apparatus disclosed in Patent Document 1 is known as a technique related to a code analysis system that analyzes an unread factor when an information code cannot be decoded by a reading apparatus that reads an information code. In this code reader, if the bar code data fetched from the bar code scanner is not read correctly, a simulated bar code having the same code system as the read bar code is displayed on the liquid crystal display. If the operator reads the simulated barcode displayed on the liquid crystal display with the barcode scanner and the barcode is read correctly, the barcode display indicates that the barcode scanner is normal. If the code data is not read correctly, it is displayed that there is some abnormality in the barcode scanner.

JP 2007-172347 A

  By the way, when an information code such as a barcode or a two-dimensional code displayed on a product cannot be read by a reader that optically reads information such as a barcode reader in the distribution process of the product, the unread factor is Since it is not known, the information code or the reading device is sent to an analysis department such as a development base capable of analyzing the unread factor. In this analysis department, the received information code is read by the reading device at hand to analyze the unread factor, or the received reading device is investigated to analyze the unread factor. Then, when the unread factor is analyzed, the solution and the analysis result are reported to the user of the target reading device.

  Thus, since analysis is performed after the information code or the reading device is sent to the analysis department, it takes time to report the solution and the analysis result to the user of the target reading device. Further, in the code reading apparatus disclosed in Patent Document 1, it can be determined on the spot whether the unread factor is on the reading target side (barcode side) or on the reading device side (barcode scanner side). What is the unread factor itself, and its solution cannot be analyzed in real time, and it takes time to report the solution and analysis results to the user as above. there were.

  The present invention has been made to solve the above-described problems, and the object of the present invention is to analyze a non-reading factor in real time with a simple configuration and to quickly solve the unreading factor. To provide an analysis system.

  In order to achieve the above object, the code analysis system according to claim 1, wherein the code analysis system includes an imaging unit and a decoding unit, and a code image including an information code is captured by the imaging unit and decoded by the decoding unit. Thus, in a code analysis system having a reading device that reads the information code and an analysis-side terminal that can remotely operate the reading device, the analysis-side terminal is a communication means for communicating with the reading device. , A communication unit capable of acquiring the code image captured by the imaging unit in real time, an analysis side display unit displaying the code image acquired by the communication unit in real time, and a display on the analysis side display unit Based on the information code included in the code image, it is difficult to decode the information code. Analyzing means for analyzing the unread factor in the case, and unread factor solution for outputting solution information for solving the unread factor to the reading device via the communication means based on the analysis result by the analyzing means And when the decoding of the information code included in the code image is difficult, the reading device is remotely operated by the analysis side terminal in accordance with the solution information from the unread factor solution unit The information code is decoded. The case where it is difficult to decode the information code includes a case where reading fails even if the information code is decoded a plurality of times, and a case where reading is difficult to decode even if the information code is decoded a plurality of times.

  According to a second aspect of the present invention, in the code analysis system according to the first aspect, the reading device notifies the user of the reading device of at least one of the unread factor and the solution information. It is characterized by providing.

  According to a third aspect of the present invention, in the code analysis system according to the first or second aspect, since the unreadable factor is in an information code included in the code image, the solution information includes a part of the information code. Corrected code information that has been corrected, and when the reading device has difficulty in decoding the information code based on the information code included in the code image, the information is based on the corrected code information. It is characterized by decoding the code.

  According to a fourth aspect of the present invention, in the code analysis system according to the third aspect, in the unread factor solving means, the corrected code information corrects a part of the code image displayed on the analysis side display means. The reading device includes reading side display means for displaying a code image corrected by the unread factor solving means in real time by a remote operation by the analysis side terminal.

  According to a fifth aspect of the present invention, in the code analysis system according to the fourth aspect of the present invention, the code analysis system further includes a display state adjusting unit capable of adjusting a display state of the code image according to the corrected code information displayed on the reading side display unit. It is characterized by.

  The invention of claim 6 is the code analysis system according to claim 4 or 5, further comprising printing means for printing a code image corresponding to the corrected code information displayed on the reading side display means. And

  The invention according to claim 7 is the code analysis system according to claim 1 or 2, wherein the solution information includes a parameter change for changing an imaging condition of the imaging means because the unread factor is in the reading device. The reading device is remotely operated by the analysis side terminal according to the parameter change information when it is difficult to decode the information code based on the information code included in the code image, An imaging condition adjusting unit that adjusts an imaging condition of the imaging unit is provided.

  The invention according to claim 8 is the code analysis system according to claim 1 or 2, wherein the solution information includes the unread factor in a program executed by the decoding means, so that the program is corrected. The reading device is remotely operated by the analysis side terminal according to the correction information when the information code is difficult to decode based on the information code included in the code image, Program correction means for correcting the program is provided.

  In the invention of claim 1, the analysis side terminal acquires the code image captured by the imaging unit of the reading apparatus in real time (without time difference) by the communication unit, and the code image acquired in this way is the analysis side display unit. Display in real time. Then, the analysis side terminal analyzes the unread factor by the analysis unit when it is difficult to decode the information code based on the information code included in the code image displayed on the analysis side display unit, and the unread Solution information for solving the factor is output to the reading device by the non-read factor solving unit via the communication unit. Then, when it is difficult to decode the information code included in the code image, the reading device is remotely operated by the analysis side terminal in accordance with the solution information from the non-read factor solving means and decodes the information code.

As a result, when it is difficult to decode the information code included in the code image captured by the reader, the code image is displayed in real time on the analysis side display means of the analysis side terminal. Compared with the case where the code or the reading device is sent to an analysis department or the like, the unread factor can be analyzed quickly. Then, the solution information for solving the unread factor is output to the reading device, and the reading device is remotely operated by the analysis side terminal according to the solution information, so that the unread factor according to the solution information can be solved. Even information codes that have been implemented quickly and made difficult to decode can be reliably decoded.
Therefore, the reading device can be analyzed in real time with a simple configuration without causing the reading device to have a function of analyzing and solving the reading error, and the reading error can be quickly resolved.

  In the invention of claim 2, since at least one of the unread factor and the solution information is notified to the user of the reading device by the notifying means, the user can specify the content of the unread factor or the solution information. Recognize quickly.

  In the invention of claim 3, when the reading device has an unread factor in the information code included in the code image, and it is difficult to decode the information code, a part of the information code is corrected as the solution information. Based on the corrected code information, the information code is decoded. As a result, even when the unread factor is in the information code, the unread factor can be quickly resolved by decoding based on the corrected code information.

  In the invention of claim 4, the corrected code information is generated by correcting a part of the code image displayed on the analysis side display means by the unread factor solving means, and the reading side display means of the reading device By the remote operation by the analysis side terminal, the code image corrected by the unread factor solving means is displayed in real time. As a result, when a part of the code image displayed on the analysis side display means is corrected, the code image displayed on the reading side display means is corrected as it is. Information) can be quickly and visually notified to the user of the reader.

  According to the fifth aspect of the present invention, the display state of the code image can be adjusted by the display state adjusting unit according to the corrected code information displayed on the reading side display unit. For this reason, even if the code image corrected on the reading side display means is not suitably displayed due to a difference in display range, resolution, etc. between the reading side display means and the reading side display means, the display state adjusting means By appropriately adjusting the display state of the code image displayed on the reading side display means by enlarging, reducing, moving, etc., it is possible to suitably display a part or all of the necessary code image area on the reading side display means. Can do.

  In the invention of claim 6, the printing means can print a code image corresponding to the corrected code information displayed on the reading side display means. For this reason, the corrected code image is printed, and the printed information code is read and decoded by the reading device, so that the unread factor can be solved quickly.

  In the invention of claim 7, when the reading device is difficult to decode the information code because the non-reading factor is in the reading device, the reading condition is the imaging condition of the imaging means, for example, the illuminance of the illumination light at the time of imaging. The imaging condition of the imaging unit is adjusted by the imaging condition adjusting unit based on the parameter change information for changing the information, and the information code is decoded. As a result, even when there is an unread factor in the reading apparatus or its imaging unit, the unread factor can be quickly resolved by adjusting and decoding the imaging condition of the imaging unit based on the parameter change information. it can.

  According to the invention of claim 8, the reading device corrects the program executed by the decoding means as solution information when it is difficult to decode the information code because the non-reading factor is in the program executed by the decoding means. The information code is decoded by modifying the program based on the above. Thereby, even when an unread factor exists in the said program, the solution of an unread factor can be rapidly implemented by correcting and decoding a program based on correction information.

It is explanatory drawing which shows schematic structure of the code analysis system which concerns on this embodiment. It is a block diagram which shows the electrical structure of the optical information reader of FIG. It is a block diagram which shows the electric constitution of the analysis side terminal of FIG. It is a flowchart which illustrates the flow of the unread factor solution process implemented in the control circuit of FIG. It is a timing chart which illustrates the case where an unread factor exists in an information code. 6A and 6B are explanatory diagrams showing a display state of the display unit of FIG. 3, in which FIG. 6A shows a display state in which a code image including an information code before correction is displayed, and FIG. 6B shows an information code FIG. 6C shows a display state in which a code image including the corrected information code is displayed. FIG. 7A is an explanatory diagram illustrating a display state of the display unit in FIG. 2, FIG. 7A illustrates a display state before adjustment, and FIG. 7B illustrates a display state after adjustment. It is a timing chart which illustrates the case where an unread factor exists in an optical information reading device. It is a timing chart which illustrates the case where an unread factor exists in a program for decoding.

  Hereinafter, an embodiment in which the code analysis system of the present invention is embodied will be described with reference to the drawings. FIG. 1 is an explanatory diagram showing a schematic configuration of a code analysis system 10 according to the present embodiment. FIG. 2 is a block diagram showing an electrical configuration of the optical information reader 20 of FIG. FIG. 3 is a block diagram showing an electrical configuration of the analysis-side terminal 11 shown in FIG.

  The code analysis system 10 according to the present embodiment analyzes and resolves the unread factor with respect to the optical information reader 20 that optically reads an information code C such as a one-dimensional code such as a barcode or a two-dimensional code. The optical information reader 20 is configured to have an analysis side terminal 11 that can be remotely operated.

First, the configuration of the optical information reader 20 will be described with reference to the drawings.
The optical information reading device 20 is a reading device that acquires necessary information by optically reading an information code C displayed on a product or packaging in a distribution process or the like. The optical information reader 20 is used when an operator performs an operation of reading the information code C in various distribution processes.

  As shown in FIG. 2, the optical information reader 20 is configured such that a circuit portion is accommodated in a case, and this circuit portion mainly includes an illumination light source 21, a light receiving sensor 28, and an imaging lens 27. And an optical system such as a memory 35, a control circuit 40, a trigger switch 42, and other microcomputer systems (hereinafter referred to as "microcomputer").

  The optical system is divided into a light projecting optical system and a light receiving optical system. The illumination light source 21 constituting the light projecting optical system functions as an illumination light source capable of emitting the illumination light Lf, and includes, for example, a red LED and a lens provided on the emission side of the LED. 1 and 2 conceptually show an example in which the illumination light Lf is irradiated toward the object R on which the information code C is displayed.

  The light receiving optical system includes a light receiving sensor 28, an imaging lens 27, a reflecting mirror (not shown), and the like. The light receiving sensor 28 is configured as a CCD area sensor, and is configured to receive the reflected light Lr irradiated and reflected on the information code C or the object R. The light receiving sensor 28 is mounted on a printed wiring board (not shown) so as to be able to receive incident light incident through the imaging lens 27. The light receiving sensor 28 corresponds to an example of an “imaging unit” described in the claims.

  The imaging lens 27 functions as an imaging optical system capable of condensing incident light incident from the outside via a reading port (not shown) and forming an image on the light receiving surface 28a of the light receiving sensor 28. . In the present embodiment, after the illumination light Lf emitted from the illumination light source 21 is reflected by the information code, the reflected light Lr is condensed by the imaging lens 27 and a code image is formed on the light receiving surface 28a of the light receiving sensor 28. I am letting you image.

  The microcomputer system includes an amplification circuit 31, an A / D conversion circuit 33, a memory 35, an address generation circuit 36, a synchronization signal generation circuit 38, a control circuit 40, a key operation unit 41, a trigger switch 42, a light emitting unit 43, a buzzer 44, and a vibrator. 45, a display unit 46, a communication interface 48, and the like.

  The image signal (analog signal) output from the light receiving sensor 28 of the optical system is amplified by a predetermined gain by being input to the amplifier circuit 31, and then input from the analog signal when input to the A / D conversion circuit 33. Converted into a digital signal. When the digitized image signal, that is, image data (image information) is generated and input to the memory 35, it is stored in a predetermined code image information storage area. The synchronization signal generation circuit 38 is configured to generate a synchronization signal for the light receiving sensor 28 and the address generation circuit 36, and the address generation circuit 36 is based on the synchronization signal supplied from the synchronization signal generation circuit 38. Thus, the storage address of the image data stored in the memory 35 can be generated.

  The control circuit 40 is configured by a microcomputer that can control the entire optical information reading device 20, has a CPU, a system bus, an input / output interface, and the like, and has an information processing function. Is configured. In the present embodiment, a key operation unit 41, a trigger switch 42, a light emitting unit 43, a buzzer 44, a vibrator 45, a display unit 46, a communication interface 48, and the like are connected to the control circuit 40. Then, based on the image data stored in the memory 35, the control circuit 40 performs a decoding process. For this decoding process, a process similar to a well-known decoding process implemented by a binary level code such as CODE39 or NW-7 can be used. Specifically, a region where a code-like image is arranged is specified in the captured image, and scanning is performed in a predetermined lateral direction (pixel direction corresponding to the longitudinal direction of the light receiving sensor 28) in this region, thereby performing a light color region and a dark color An area is identified. The result of the decoding process performed by the control circuit 40 is stored in a predetermined decoding result storage area of the memory 35. The control circuit 40 may correspond to an example of “decoding unit” recited in the claims.

  The control circuit 40 receives an operation signal input according to the operation of the key operation unit 41 and performs an operation according to the content of the operation signal. The control circuit 40 also turns on and off the light emitting unit 43 that functions as an indicator for notifying information related to monitoring and management of the trigger switch 42 and reading of the information code, a buzzer 44 that can generate a beep sound and an alarm sound, for example. It is possible to turn on / off the ringing, drive control of the vibrator 45 that can generate vibration that can be transmitted to the operator of the optical information reading device 20, and the like.

  The display unit 46 includes, for example, a liquid crystal display, and is configured such that the display content is controlled by the control circuit 40. The display unit 46 displays a code image including the information code C captured by the light receiving sensor 28 when the so-called ViewFinder function of the control circuit 40 is activated. The display unit 46 is controlled by the control circuit 40 in accordance with the operation of the key operation unit 41, and the display state thereof can be adjusted by enlarging / reducing or moving the code image. The display unit 46 corresponds to an example of “reading display unit” described in the claims, and the key operation unit 41 corresponds to an example of “display state adjustment unit” described in the claims. obtain.

  The communication interface 48 is an interface for communicating with an external device such as the analysis-side terminal 11, and includes a wired communication unit that performs wired communication with the external device, a wireless communication unit that performs wireless communication, or both. There is no. In particular, the communication interface 48 is configured to communicate with the analysis side terminal 11 via a predetermined base station (not shown) connected to the Internet N or the like when performing data communication with the analysis side terminal 11. Has been.

Next, the structure of the analysis side terminal 11 is demonstrated with reference to drawings.
The analysis-side terminal 11 is a terminal installed in an analysis department such as a development base that develops an optical information reader 20 or an information code to be read. The analysis side terminal 11 has a so-called Remote Desktop function in order to remotely control the optical information reading device 20 arranged in the distribution process or the like.

  As shown in FIG. 3, a control circuit 12 that controls the entire analysis side terminal 11 is provided in the housing of the analysis side terminal 11. The control circuit 12 is composed mainly of a microcomputer, has a CPU, a system bus, an input / output interface, etc., and can constitute an information processing apparatus together with the memory 13 and has an information processing function. ing. The memory 13 stores in advance a program or the like for performing an unread factor solution process described later.

  In addition, the control circuit 12 remotely controls the optical information reading device 20 by performing the unread factor solving process, and analyzes the unread factor of the information code C that is difficult to decode. Solution information for solving the non-read factor is output to the optical information reader 20. The control circuit 12 may correspond to an example of “analysis means” and “unread factor solution means” described in the claims.

  An operation unit 14, a display unit 15, a communication interface 16, and the like are connected to the control circuit 12. The operation unit 14 includes a keyboard and a mouse, and is configured such that information corresponding to the operation is input to the control circuit 12.

  The display unit 15 includes, for example, a liquid crystal display, and is configured such that the display content is controlled by the control circuit 12. In particular, the display unit 15 displays the code image captured by the light receiving sensor 28 of the optical information reading device 20 in real time (with no time difference) by the unread factor solving process performed by the control circuit 12. It is configured as follows. The display unit 15 may correspond to an example of “analysis display unit” described in the claims.

  The communication interface 16 is an interface for communicating with an external device such as the optical information reader 20, and includes a wired communication unit that performs wired communication with the external device, a wireless communication unit that performs wireless communication, or both. It has a configuration. The communication interface 16 is connected to the Internet N or the like, and performs data communication with the optical information reading device 20 that is also connected to the Internet N or the like. In particular, the communication interface 16 is configured to be able to acquire a code image captured by the light receiving sensor 28 of the optical information reader 20 in real time. The communication interface 16 may correspond to an example of “communication means” recited in the claims.

  Next, when the decoding of the information code C imaged by the optical information reading device 20 becomes difficult, the unread factor solving process in which the analysis side terminal 11 analyzes and resolves the unread factor is as follows. This will be described in detail with reference to FIGS. FIG. 4 is a flowchart illustrating the flow of unread factor solution processing performed by the control circuit 12. FIG. 5 is a timing chart illustrating a case where the unread factor is in the information code C. FIG. 6 is an explanatory diagram showing a display state of the display unit 15, FIG. 6A shows a display state in which a code image including the information code C before correction is displayed, and FIG. FIG. 6C shows a display state in which a corrected portion of the information code C is displayed, and FIG. 6C shows a display state in which a code image including the corrected information code C is displayed. FIG. 7 is an explanatory diagram showing the display state of the display unit 46, FIG. 7 (A) shows the display state before adjustment, and FIG. 7 (B) shows the display state after adjustment. FIG. 8 is a timing chart illustrating a case where the unread factor is in the optical information reading device 20. FIG. 9 is a timing chart illustrating a case where the unread factor is in the decoding program.

  First, the case where it is difficult to decode the information code C because the unread factor is in the information code C included in the code image will be described with reference to FIGS. Here, the case where the unreadable factor is in the information code C is assumed, for example, when a part of the code is missing due to uneven printing or when the part of the code is displayed lighter than other parts. Is done.

  When an administrator who manages the analysis-side terminal 11 in the analysis department is notified of an unread report from an operator who uses the optical information reader 20 (S101), the administrator Thus, the optical information reader 20 is logged in so as to be remotely operable (S103). Specifically, the administrator hears specific information such as an IP address for specifying the optical information reading device 20 from the worker, and based on the specific information, the analysis side terminal 11 performs communication interface 16 and Internet N. The optical information reading device 20 is connected via the above. In the unread factor solution processing, it is assumed that the administrator exchanges information related to unread while calling the worker.

  Then, in response to a request from the administrator, when the user images the information code C that has failed to be read by the optical information reading device 20 with the ViewFinder function enabled, the code including the information code C is included. Data relating to the image is acquired via the communication interface 16 or the like, and this code image is displayed on the display unit 15 in real time (S105).

  Then, the analyst visually recognizes the code image displayed on the display unit 15 and finds the unread factor, or unreads a decoding program (decoding software) or the like that uses the code image displayed on the display unit 15 as an input. By executing to analyze the factor, the unread factor is analyzed (S107). Then, according to the analysis result, solution information for solving the unread factor is set. At this stage, as described above, since it is premised that the unread factor is in the information code C included in the code image (Yes in S109), the resolution information is a corrected code in which a part of the information code is corrected. Information.

  When the solution information is set in this way, the information code C displayed on the display unit 15 is modified according to the solution information (S111). Specifically, as illustrated in FIG. 6A, when a part of the information code C is missing, the analyzer or the like lacks the information code C displayed on the display unit 15. For example, as shown in FIG. 6 (B), the part that is present is pointed out in a predetermined region (indicated by reference numeral S in FIG. 6 (B)). Then, the information code C that has been corrected as shown in FIG. 6C and can be decoded is displayed on the display unit 15.

  In this case, the same content as the display unit 15 is displayed on the display unit 46 by the remote operation by the analysis side terminal 11, and the information code C displayed on the display unit 46 is similarly corrected. Thereby, since the predetermined area shown in FIG. 6B is also displayed on the display unit 46, the user can visually recognize that the unread factor is in the information code C included in the code image. . In this case, the display unit 46 may correspond to an example of a “notification unit” described in the claims.

  At this time, the display state can be adjusted by enlarging / reducing or moving the code image including the information code C displayed on the display unit 46 according to the operation of the key operation unit 41. For this reason, there is a difference in display range, resolution, and the like between the display unit 46 and the display unit 15, and thus the information code C modified on the display unit 46 is not suitably displayed as illustrated in FIG. Even if it exists, a part or all of the area | region of the required information code C can be suitably displayed on the display part 46 so that it may illustrate in FIG.7 (B).

  As described above, the display unit 46 displays the information code C corrected so as to be readable. The information code C is printed on a predetermined sheet using the printer 50 and displayed on the printing sheet. By reading the information code C with the optical information reader 20, even the information code C that is difficult to decode can be reliably decoded. As described above, since the information code C can be corrected in real time, the unread factor can be analyzed and resolved quickly.

  Next, the case where it is difficult to decode the information code C because the non-reading factor is not the information code C but the optical information reading device 20 itself will be described with reference to FIGS. Here, the case where the non-reading factor is in the optical information reading device 20 is, for example, a case where decoding cannot be performed due to imaging conditions, specifically, due to insufficient illumination or excessive illumination of the illumination light Lf from the illumination light source 21 at the time of imaging. Is assumed.

  Even in this case, as described above, when the code image captured by the light receiving sensor 28 is displayed in real time on the display unit 15 (S105), the analyst visually recognizes the code image displayed on the display unit 15. The unread factor is analyzed by finding the unread factor or by executing a predetermined program for analyzing the unread factor (S107).

  Then, according to the analysis result, solution information for solving the unread factor is set. At this stage, as described above, it is assumed that the non-reading factor is in the optical information reading device 20 (No in S109, Yes in S113). Therefore, the resolution information is an imaging condition, for example, illumination light at the time of imaging. This is parameter change information for changing the illuminance or the like of Lf.

  Thus, when parameter change information is set as solution information, this parameter change information is output to the optical information reader 20 via the communication interface 16 etc. (S115). In the optical information reading device 20, when the parameter change information is input via the communication interface 48 or the like by remote operation by the analysis side terminal 11, the imaging condition is obtained by processing by the control circuit 40 according to the parameter change information. For example, the illuminance of the illumination light source 21 is adjusted. Then, the display unit 46 displays that the unread factor is in the imaging condition and that the unread factor has been resolved. Thereby, the user can visually recognize the unread factor and that the unread factor is solved. The control circuit 40 may correspond to an example of “imaging condition adjusting unit” recited in the claims.

  By reading the information code C with the imaging conditions adjusted as described above, even the information code C that is difficult to decode can be reliably decoded. As described above, since the information code C can be corrected in real time, the unread factor can be analyzed and resolved quickly. The adjustment of the imaging conditions is basically performed so that the user does not know the specific adjustment contents.

  Next, the case where it is difficult to decode the information code C because the unread factor is not the information code C but the decoding program executed at the time of decoding will be described with reference to FIGS.

  Even in this case, as described above, when the code image captured by the light receiving sensor 28 is displayed in real time on the display unit 15 (S105), the analyst visually recognizes the code image displayed on the display unit 15. The unread factor is analyzed by finding the unread factor or by executing a predetermined program for analyzing the unread factor (S107).

  Then, according to the analysis result, solution information for solving the unread factor is set. At this stage, as described above, it is assumed that the unread factor is in the decoding program (No in S109, No in S113, Yes in S117), so the solution information is program correction information of the decoding program. . If the unread factor is not a decoding program (No in S117), the unread factor solving process may be terminated assuming that the unread factor is unknown.

    When the program correction information is set as the solution information in this way, the program correction information is output to the optical information reading device 20 via the communication interface 16 or the like (S119). In the optical information reader 20, when the program correction information is input via the communication interface 48 or the like by remote operation by the analysis side terminal 11, the memory 35 is processed by the control circuit 40 according to the program correction information. The decoding program stored in is rewritten. Then, the display unit 46 displays that the unread factor is in the decoding program and that the unread factor has been resolved. Thereby, the user can visually recognize the unread factor and that the unread factor is solved. The control circuit 40 may correspond to an example of “program correction means” recited in the claims.

  By executing the rewritten decoding program and reading the information code C, it is possible to reliably decode even the information code C that is difficult to decode. As described above, since the decoding program can be corrected in real time, it is possible to quickly analyze and resolve unread factors.

  As described above, in the code analysis system 10 according to the present embodiment, the analysis-side terminal 11 reads the code image captured by the light receiving sensor 28 of the optical information reader 20 in real time via the communication interface 16 or the like. The code image acquired in this way (without time difference) is displayed on the display unit 15 in real time. The analysis-side terminal 11 analyzes the unread factor when it is difficult to decode the information code C based on the information code C included in the code image displayed on the display unit 15. Is output to the optical information reader 20 via the communication interface 16 or the like. Then, when it is difficult to decode the information code C included in the code image, the optical information reader 20 is remotely operated by the analysis-side terminal 11 according to the solution information and decodes the information code C. .

Thereby, when it is difficult to decode the information code C included in the code image captured by the optical information reader 20, the code image is displayed on the display unit 15 of the analysis side terminal 11 in real time. Therefore, compared with the case where the target information code C or the optical information reader 20 is sent to an analysis department or the like, the unread factor can be analyzed quickly. Then, solution information for solving this unread factor is output to the optical information reader 20, and the optical information reader 20 is remotely operated by the analysis side terminal 11 according to the solution information. Therefore, even if the information code C is difficult to decode, it is possible to reliably decode it.
Therefore, the unreadable factor can be analyzed in real time with a simple configuration without causing the optical information reader 20 to have a function of analyzing and resolving the unread factor, and the unread factor can be quickly resolved. .

  Further, since the display unit 46 notifies the user of the optical information reader 20 of the unread factor and the solution information, the user can quickly recognize the content of the unread factor or the solution information. Can do. In addition, you may use the light emission part 43, the buzzer 44, the vibrator 45, etc. as a notification means for notifying at least any one of a non-read factor and solution information.

  Furthermore, the optical information reading device 20 corrects a part of the information code C as solution information when it is difficult to decode the information code C because the unread factor is in the information code C included in the code image. Based on the corrected code information, the information code C is decoded (see FIG. 5). Thereby, even when the unread factor is in the information code C, the unread factor can be quickly resolved by decoding based on the corrected code information.

  Furthermore, the corrected code information is generated by correcting a part of the code image displayed on the display unit 15, and the code image to be corrected is displayed in real time on the display unit 46 by remote operation by the analysis side terminal 11. Is displayed. Thereby, when a part of the code image displayed on the display unit 15 is corrected, the code image displayed on the display unit 46 is corrected as it is, so that the unread factor and its solution information (corrected code information) are corrected. Can be quickly and visually notified to the user of the optical information reader 20.

  Further, the display state of the code image corresponding to the corrected code information displayed on the display unit 46 can be adjusted by the operation by the key operation unit 41. Therefore, even if the corrected code image is not properly displayed on the display unit 46 due to a difference in display range, resolution, or the like between the display unit 15 and the display unit 46, the operation by the key operation unit 41 is performed. By adjusting the display state of the code image displayed on the display unit 46 by enlarging / reducing or moving the code image, a part or all of the necessary code image area can be displayed on the display unit 46.

  Further, the printer 50 can print a code image corresponding to the corrected code information displayed on the display unit 46. For this reason, the corrected code image is printed, and the printed information code C is read by the optical information reading device 20 and decoded, so that the unread factor can be quickly resolved.

  Furthermore, the optical information reading device 20 has an imaging condition based on the parameter change information as solution information when it is difficult to decode the information code C because the non-reading factor is in the optical information reading device 20. And the information code C is decoded (see FIG. 8). As a result, even when the unread factor is in the imaging condition of the optical information reader 20, it is possible to quickly solve the unread factor by adjusting and decoding the imaging condition based on the parameter change information. it can.

  Further, the optical information reading device 20 corrects information on the program executed by the decoding process as the solution information when it is difficult to decode the information code C because the unread factor is in the program executed at the time of decoding. The information code C is decoded by correcting the program on the basis of (see FIG. 9). Thereby, even when an unread factor exists in the said program, the solution of an unread factor can be rapidly implemented by correcting and decoding a program based on correction information.

In addition, this invention is not limited to the said embodiment, You may actualize as follows.
(1) When the non-reading factor is in the optical information reading device 20 itself and is caused by a condition that is different from the imaging condition and can be adjusted by remote operation, the parameter change information is set according to the condition and decoding is performed. When it is difficult, the conditions of the optical information reading device 20 may be adjusted according to the parameter change information.

(2) At the time of unread factor analysis (S107), dust or the like adheres to the cover that protects the reading port of the optical information reading device 20 through the reflected light Lr from the code image displayed on the display unit 15. If it is analyzed as an unread factor, the unread factor can be solved by contacting the user to that effect.

DESCRIPTION OF SYMBOLS 10 ... Code analysis system 11 ... Analysis side terminal 12 ... Control circuit (analysis means, unread factor solution means)
14 ... operation part 15 ... display part (analysis side display means)
16. Communication interface (communication means)
20: Optical information reader (reader)
28: Light receiving sensor (imaging means)
40. Control circuit (decoding means)
41 ... Key operation unit (display state adjusting means)
46 ... Liquid crystal display (reading side display means, notification means)
48 ... Communication interface

Claims (8)

A reading device that includes an image pickup unit and a decoding unit, reads a code image including an information code by the image pickup unit, and decodes the code by the decoding unit, and an analysis-side terminal capable of remotely operating the reading device In a code analysis system having
The analysis side terminal is
Communication means for communicating with the reading device, the communication means capable of acquiring the code image captured by the imaging means in real time;
Analysis side display means for displaying the code image acquired by the communication means in real time;
Based on the information code included in the code image displayed on the analysis side display means, analysis means for analyzing the unread factor when the information code is difficult to decode,
Unread factor solving means for outputting solution information for solving the unread factor based on the analysis result by the analyzing means to the reading device via the communication means;
With
When it is difficult to decode the information code included in the code image, the reader is remotely operated by the analysis-side terminal according to the solution information from the unread factor solution means, and the information code A code analysis system characterized by decoding.   The code analysis system according to claim 1, wherein the reading device includes a notification unit that notifies a user of the reading device of at least one of the unread factor and the solution information. The solution information is corrected code information in which a part of the information code is corrected because the unread factor is in the information code included in the code image.
The reading device decodes the information code based on the corrected code information when it is difficult to decode the information code based on the information code included in the code image. Item 3. The code analysis system according to item 1 or 2. In the unread factor solution means, the corrected code information is generated by correcting a part of the code image displayed on the analysis side display means,
4. The reading device according to claim 3, wherein the reading device includes a reading-side display unit that displays a code image corrected by the unread factor solving unit in real time by a remote operation by the analysis-side terminal. Code analysis system.   5. The code analysis system according to claim 4, further comprising a display state adjustment unit capable of adjusting a display state of a code image according to the corrected code information displayed on the reading side display unit.   6. The code analysis system according to claim 4, further comprising a printing unit for printing a code image corresponding to the corrected code information displayed on the reading side display unit. The solution information is parameter change information for changing the imaging condition of the imaging unit because the unread factor is in the reader.
When the information code is difficult to decode based on the information code included in the code image, the reader is remotely operated by the analysis side terminal according to the parameter change information, and The code analysis system according to claim 1, further comprising an imaging condition adjusting unit that adjusts the imaging condition. The solution information is correction information for correcting the program because the unread factor is in the program executed by the decoding means.
When the information code is difficult to decode based on the information code included in the code image, the reading device is remotely operated by the analysis-side terminal according to the correction information, and corrects the program The code analysis system according to claim 1, further comprising a program correction unit.

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