Measuring apparatus, measuring method, and measuring program

Abstract

To easily determine an installation position of each detection device included in a production line.SOLUTION: A measuring apparatus 10 collects, from each of detection devices installed in a feed direction of an electrode sheet S having a reference marker M, respective detection results of the reference marker M obtained by the detection devices, and calculates a distance between devices, the distance indicating an interval at which the detection devices are installed based on the collected detection results.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a measurement device, a measurement method, and a measurement program. [Background technology]

[0002] Battery electrode sheets (sometimes referred to as "electrode sheets") are made by thinly coating a mixture of active materials and the like on a metal foil and then drying it. In the manufacture of electrode sheets, positive and negative electrode slurries (liquid mixtures) are coated onto the surfaces of aluminum or copper foil. When measuring the amount of slurry applied during the coating process, a detection device calculates the thickness, weight, etc. before and after coating, and the coating amount is determined from the difference between these values. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2011-196755 Summary of the Invention [Problem to be solved by the invention]

[0004] In a production line for electrode sheets, etc., to accurately determine the coating weight after coating, it is necessary to use the installation positions of each detection device and the electrode sheet delivery speed to match the trajectories of the positions detected by each detection device installed in different positions. However, in an actual production line, it is difficult to accurately determine the installation positions and relative distances of each detection device on the path along which the electrode sheet is delivered.

[0005] The present invention has been made in view of the above, and an object of the present invention is to make it possible to easily determine the installation positions of each detection device included in a production line. [Means for solving the problem]

[0006] A measuring device according to one embodiment of the present invention comprises a collection unit that collects the detection results of the reference marker detected by each detection device installed in the transmission direction of a measurement object having a reference marker, and a calculation unit that calculates an inter-device distance indicating the distance at which each detection device is installed based on the collected detection results.

[0007] A measurement method according to one embodiment of the present invention involves a computer collecting detection results of the reference marker detected by each detection device installed in the transmission direction of a measurement object having the reference marker, and calculating an inter-device distance indicating the distance at which each detection device is installed based on the collected detection results.

[0008] A measurement program according to one embodiment of the present invention causes a computer to execute a process of collecting detection results of the reference marker detected by each detection device installed in the transmission direction of a measurement object having the reference marker, and calculating an inter-device distance indicating the distance at which each detection device is installed based on the collected detection results. [Effects of the Invention]

[0009] According to the present invention, the installation position of each detection device included in a production line can be easily determined. [Brief explanation of the drawings]

[0010] [Figure 1] 1 is a diagram illustrating an example of the configuration and processing of a coating mass measurement system according to an embodiment; [Figure 2] FIG. 2 is a diagram showing a specific example of a detection device of the coating mass measurement system according to the embodiment. [Figure 3] FIG. 1 is a diagram showing a specific example of a coating line of a coating mass measurement system according to an embodiment. [Figure 4] 10A and 10B are diagrams showing specific examples of detection results of a detection device of the coating mass measurement system according to the embodiment. [Figure 5]10A and 10B are diagrams for explaining a process for calculating the distance between devices in a coating mass measurement system according to a reference technology. [Figure 6] FIG. 2 is a block diagram showing an example of the configuration of each device of the coating mass measurement system according to the embodiment. [Figure 7] FIG. 4 is a diagram illustrating an example of a detection threshold storage unit of the measurement device according to the embodiment. [Figure 8] FIG. 4 is a diagram illustrating an example of a detection result storage unit of the measurement device according to the embodiment. [Figure 9] FIG. 4 is a diagram illustrating an example of a calculation result storage unit of the measurement device according to the embodiment. [Figure 10] 10A and 10B are diagrams illustrating specific examples of fiducial markers according to an embodiment. [Figure 11] 10A to 10C are diagrams illustrating a specific example of a reference marker detection process of the detection device according to the embodiment. [Figure 12] 10A and 10B are diagrams illustrating a specific example of inter-device distance calculation processing of the measurement device according to the embodiment. [Figure 13] 1 is a flowchart showing an example of the overall flow of a coating mass measurement system according to an embodiment. [Figure 14] 10 is a flowchart showing an example of the flow of a reference marker management process of the coating mass measurement system according to the embodiment. [Figure 15] 10 is a flowchart showing an example of the flow of a detection result management process of the coating mass measurement system according to the embodiment. [Figure 16] 10 is a flowchart showing an example of the flow of a calculation result management process of the coating mass measurement system according to the embodiment. [Figure 17] FIG. 2 is a diagram illustrating an example of a hardware configuration according to an embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0011] A measurement device, a measurement method, and a measurement program according to an embodiment of the present invention will be described in detail below with reference to the drawings. Note that the present invention is not limited to the embodiment described below.

[0012] The following describes the configuration and processing of the coating weight measurement system 100 according to the embodiment, the configuration and processing of each device of the coating weight measurement system 100, the flow of each process of the coating weight measurement system 100, and the effects of the embodiment.

[0013] 1. Configuration and Processing of Coating Weight Measurement System 100 The configuration and processing of a coating weight measurement system 100 according to an embodiment will be described using Figures 1 to 4. Below, an example of the overall configuration of the coating weight measurement system 100, the basic principles of the coating weight measurement system 100, an example of processing by the coating weight measurement system 100, and the effects of the coating weight measurement system 100 will be described. Note that in the embodiment, a measuring device 10 that measures the thickness and weight of an electrode sheet S online will be described as an example, but the measurement target and field of use are not limited thereto.

[0014] (1-1. Example of the overall configuration of the coating weight measurement system 100) An example of the overall configuration of a coating weight measurement system 100 will now be described using FIG. 1. The coating weight measurement system 100 includes a measuring device 10 and a detecting device 20. FIG. 1 is a diagram illustrating an example of the configuration and processing of the coating weight measurement system 100 according to an embodiment. The measuring device 10 and the detecting device 20 are connected to each other via a predetermined communication network (not shown) so as to be able to communicate with each other via wired or wireless communication. The predetermined communication network may be the Internet, a dedicated line, or any other communication network. The coating weight measurement system 100 may also include a coating device CM (not shown), a drying device DM (not shown), and coating line equipment such as rollers (not shown), which will be described later. The measuring device 10, the coating device (not shown), the drying device (not shown), and the coating line equipment (not shown) are connected to each other so as to be able to communicate with each other via analog signals, pulse signals, Ethernet (registered trademark), or the like.

[0015] (1-1-1. Measuring device 10) The measuring device 10 is a device used by an operator W who manages a coating line for the electrode sheet S, and is a device for measuring the coating weight of the electrode sheet S, which is the measurement target. For example, the measuring device 10 is installed in an operator's room or the like that manages the coating line for the electrode sheet S. The coating weight measurement system 100 shown in FIG. 1 may include multiple measuring devices 10. Furthermore, although the example in FIG. 1 shows a case where the measuring device 10 is realized by a desktop PC (Personal Computer), it may also be realized by a notebook PC, a smartphone, a server device, a cloud system, etc.

[0016] (1-1-2.Detection equipment 20) The detection devices 20 (20-1, 20-2, ...) are arranged along the feed direction of the electrode sheet S and are devices that detect the thickness or weight of the electrode sheet S. For example, the detection devices 20 are devices managed by an operator W and installed at the site of the coating line for the electrode sheet S. In the example of FIG. 1, the detection devices 20-1, 20-2, ... are installed from the upstream side (the side closer to the feed start point) to the downstream side (the side farther from the feed start point) of the electrode sheet S. Note that the coating amount measurement system 100 shown in FIG. 1 includes at least two detection devices 20, but may also include one detection device 20, or may include three or more detection devices 20.

[0017] (1-2. Basic Principles of Coating Weight Measurement System 100) 2 to 4, the basic principle of coating weight measurement system 100 will be described. Below, a specific example of detector 20 of coating weight measurement system 100, a specific example of a coating line of coating weight measurement system 100, and a specific example of the detection results of detector 20 of coating weight measurement system 100 will be described.

[0018] (1-2-1. Specific examples of the detection device 20) Here, a specific example of the detector 20 of the coating weight measurement system 100 will be described with reference to Fig. 2. Fig. 2 is a diagram showing a specific example of the detector 20 of the coating weight measurement system 100 according to the embodiment. As shown in the example of Fig. 2, the detector 20 has a frame unit 21, a sensor unit 22, and a control unit 23.

[0019] (1-2-1-1. Frame part 21) Frame section 21 is a housing portion of detection device 20, and is disposed perpendicular to the feeding direction of electrode sheet S. Frame section 21 has sensor section 22 (sensor section upper section 22U, sensor section lower section 22D) installed therein.

[0020] (1-2-1-2. Sensor unit 22) The sensor unit 22 is composed of a light source that irradiates measurement light such as radiation (e.g., X-rays, β-rays) or infrared rays, and a sensor head, and reciprocates to scan the emitted electrode sheet S. At this time, the sensor unit 22 moves back and forth within the frame unit 21 perpendicular to the direction of emission of the electrode sheet S, and detects the transmission intensity of the measurement light irradiated from the light source through the electrode sheet S.

[0021] (1-2-1-3. Control unit 23) The control unit 23 is connected to the sensor unit 22 so as to be able to communicate with it via wire or wirelessly. The control unit 23 calculates the thickness (mm) and mass (g) of the electrode sheet S from the transmission intensity of the electrode sheet S detected by the sensor unit 22. The control unit 23 may also transmit the transmission intensity of the electrode sheet S detected by the sensor unit 22 to the measuring device 10, causing the measuring device 10 to calculate the thickness (mm) and mass (g) of the electrode sheet S.

[0022] (1-2-2. Specific examples of coating lines) Here, a specific example of a coating line of the coating weight measurement system 100 will be described with reference to Fig. 3. Fig. 3 is a diagram showing a specific example of a coating line of the coating weight measurement system 100 according to the embodiment. As shown in the example of Fig. 3, the coating line of the coating weight measurement system 100 has detection devices 20 (20-1, 20-2, 20-3, 20-4, 20-5), coating devices CM (CM-1, CM-2), and drying devices DM (DM-1, DM-2).

[0023] In the example of FIG. 3, first, the electrode sheet S is fed at a constant speed by a feeding device (not shown) such as a roller. Second, the "detector #1" which is the detector 20-1 detects the thickness and mass of the electrode sheet S before the first coating (see thin dashed line). Third, the "coating device #1" which is the coater CM-1 performs the first coating on the electrode sheet S (see light shading). Fourth, the "detector #2" which is the detector 20-2 detects the thickness and mass of the electrode sheet S after the first coating and before drying (see thin solid line). Fifth, the "dryer #1" which is the dryer DM-1 dries the electrode sheet S after the first coating. Sixth, the "detector #3" which is the detector 20-3 detects the thickness and mass of the electrode sheet S after the first coating and drying and before the second coating (see thin dashed line). Seventh, "coating device #2", which is coating device CM-2, performs a second coating on the electrode sheet S (see dark shading). Eighth, "detecting device #4", which is detecting device 20-4, detects the thickness and mass of the electrode sheet S after the second coating and before drying (see thick solid line). Ninth, "dryer #2", which is drying device DM-2, dries the electrode sheet S after the second coating. Tenth, "detecting device #5", which is detecting device 20-5, detects the thickness and mass of the electrode sheet S after the second coating and after drying (see thick dashed line).

[0024] 3, in order to match the trajectories detected by the sensor units 22 of the respective detectors 20, it is necessary to synchronize the detectors 20 and measure the coating amount using the feed speed of the electrode sheet S and the distance between the detectors 20 (the distance in the feed direction in which the electrode sheet S is fed from the position of the sensor unit 22 of the upstream detector 20 to the position of the sensor unit 22 of the downstream detector 20). More specifically, it is necessary to measure along the same trajectory by matching the timing at which the sensor unit 22 of the upstream detector 20 operates with the timing at which the sensor unit 22 of the downstream detector 20 operates using the feed distance calculated from the feed speed of the electrode sheet S and the distance between the detectors 20.

[0025] Here, the feed speed of the electrode sheet S can be obtained from each device on the coating line via analog signals, pulse signals, external communications, etc., to obtain a value that corresponds to the actual coating line. The inter-device distance, i.e., the installation positions of each detection device 20, is determined with reference to a CAD (Computer-Aided Design) drawing of the coating line. However, due to installation errors, this does not match the actual inter-device distance on the coating line. In other words, errors in the inter-device distance cause errors in the synchronization of each detection device 20, preventing the trajectories detected by the sensor units 22 of each detection device 20 from matching. Therefore, it is necessary to accurately determine the inter-device distance of the detection devices 20 in accordance with the actual coating line site.

[0026] (1-2-3. Specific examples of detection results) Here, a specific example of the detection result of the detection device 20 of the coating mass measurement system 100 will be described with reference to Fig. 4. Fig. 4 is a diagram showing a specific example of the detection result of the detection device 20 of the coating mass measurement system 100 according to the embodiment.

[0027] As shown in the example of Figure 4(1), the sensor unit 22 of the detection device 20 moves back and forth between side A and side B of the frame unit 21 perpendicular to the sending direction of the electrode sheet S, and detects the transmission intensity of the measurement light irradiated from the light source through the electrode sheet S (see Figure 4(1) "Trajectory of detection point").

[0028] As shown in the example of FIG. 4(2), the detection device 20 plots the weight per unit area (g / m) of the electrode sheet S on the vertical axis. 2 The detection device 20 outputs the detection result displaying the "electrode sheet basis weight" indicating the position between side A and side B on the horizontal axis, and the "electrode sheet width direction" indicating the position between side A and side B on the horizontal axis. At this time, the detection device 20 may output the detection result displaying the "electrode sheet thickness" indicating the thickness (mm) of the electrode sheet S on the vertical axis.

[0029] (1-3. Processing example of coating weight measurement system 100) Referring again to Figure 1, an example of the processing of the coating weight measurement system 100 will be described. Below, the reference marker installation processing, detection threshold input processing, sheet feeding processing, reference marker detection processing, detection result collection processing, and inter-device distance calculation processing will be described. Note that the following processing (1) to (6) can also be executed in a different order. Also, some of the following processing (1) to (6) may be omitted.

[0030] (1-3-1. Reference marker installation process) First, the worker W places a reference marker M on the electrode sheet S, which is the object to be measured (see FIG. 1(1)). For example, the worker W attaches a rectangular marking sticker having a certain thickness or more to the electrode sheet S when the detection device 20 is installed on a coating line or during regular inspection. Here, the reference marker M may be circular, oval, triangular, or other shape as long as it is a marker that can be detected by the detection device 20, and may be made of a material or paint different from that of the electrode sheet S. There is no particular limitation on the shape of the reference marker M. Furthermore, the entity that places the reference marker M is not limited to the worker W, and may be automatically performed by equipment not shown. Furthermore, the object to be measured is not limited to metal foil such as the electrode sheet S, but may also be a sheet-like object such as paper or plastic film.

[0031] (1-3-2. Detection threshold input processing) Second, the operator W inputs the detection threshold of the reference marker M into the measuring device 10 (see FIG. 1(2)). For example, the operator W sets a detection threshold that allows the detection device 20 to detect the thickness of the reference marker M, and inputs the detection threshold into the measuring device 10. The measuring device 10 then transmits the input detection threshold to the detection device 20 and sets it as a detection condition for the detection device 20. Here, the measuring device 10 may not require the operator W to input the detection threshold of the reference marker M, and may instead set an internally defined detection threshold as a setting condition for the detection device 20. The measuring device 10 may also automatically calculate the detection threshold from the magnitude of the measurement value for the presence or absence of the reference marker M, and set the calculated detection threshold as a setting condition for the detection device 20.

[0032] (1-3-3. Sheet sending process) Third, the worker W feeds the electrode sheet S, which is the object to be measured, at a constant speed (see FIG. 1(3)). For example, the worker W operates rollers on a coating line (not shown) to feed the electrode sheet S with the reference markers M affixed thereto at a feed speed V (m / s). At this time, it is preferable that the sensor unit 22 of the detection device 20 is fixed so as not to perform reciprocal scanning.

[0033] (1-3-4. Reference marker detection process) Fourth, the detector 20 detects the reference marker M of the delivered electrode sheet S (see FIG. 1(4)). For example, the detector 20 detects the reference marker M when the detection threshold set by the measuring device 10 is exceeded. At this time, the detector 20 outputs, as the detection result, a detected distance indicating the total distance the electrode sheet S has been delivered at the time the reference marker M is detected. For example, the detector 20-1 outputs X1 (m), which is the distance from the end of the delivery start side of the electrode sheet S, as the detected distance. Furthermore, the detector 20-2 outputs X2 (m), which is the distance from the end of the delivery start side of the electrode sheet S, as the detected distance. Here, the detected distance can be, for example, a value obtained by calculating the product of the delivery speed V (m / s) and the very short time (e.g., several milliseconds) at intervals and accumulating these products.

[0034] Furthermore, the detector 20 may output, as a detection result, a detection time indicating the time at which the reference marker M was detected. For example, the detector 20-1 outputs, as the detection time, T1, which is the time at which the reference marker M was detected. The detector 20-2 outputs, as the detection time, T2, which is the time at which the reference marker M was detected.

[0035] Furthermore, the detector 20 may immediately output, as a detection result, information indicating that the reference marker M has been detected. For example, the detector 20-1 may immediately output information indicating that the reference marker M has been detected. Furthermore, the detector 20-2 may immediately output information indicating that the reference marker M has been detected.

[0036] (1-3-5. Detection result collection process) Fifth, the measurement device 10 collects detection results from the detection devices 20 (see FIG. 1(5)). For example, the measurement device 10 collects X1 (m), which is the detection distance of the reference marker M, as a detection result from the detection device 20-1. The measurement device 10 also collects X2 (m), which is the detection distance of the reference marker M, as a detection result from the detection device 20-2.

[0037] The measurement device 10 may also collect, as a detection result, T1, which is the detection time of the reference marker M, from the detection device 20-1. The measurement device 10 may also collect, as a detection result, T2, which is the detection time of the reference marker M, from the detection device 20-2. The measurement device 10 may also collect the detection times T1 and T2 directly by receiving the detection times T1 and T2 from the detection devices 20-1 and 20-2, respectively. The measurement device 10 may also collect the detection times T1 and T2 indirectly by receiving, from the detection devices 20-1 and 20-2, information indicating that the reference marker M has been detected, and recording the times at which the information was received.

[0038] (1-3-6. Calculation of distance between devices) Sixth, the measurement device 10 calculates the inter-device distance from the detection result (see FIG. 1(6)). For example, the measurement device 10 calculates X2-X1(m), which is the difference in the detection distance of the reference marker M, as the inter-device distance between the detecting device 20-1 and the detecting device 20-2. At this time, the measurement device 10 saves the calculated X2-X1(m) as the inter-device distance between the detecting device 20-1 and the detecting device 20-2 after adjustment.

[0039] Furthermore, the measurement device 10 may calculate (T2-T1) x V(m), which is the product of the difference in detection time of the reference marker M and the delivery speed V of the electrode sheet S, as the inter-device distance between the detection devices 20-1 and 20-2. In this case, the measurement device 10 may store the calculated (T2-T1) x V(m) as the inter-device distance between the detection devices 20-1 and 20-2 after adjustment.

[0040] (1-4. Effects of Coating Weight Measurement System 100) Below, an overview and problems of the coating weight measurement system 100P according to the reference technology will be described, and then the effects of the coating weight measurement system 100 will be described.

[0041] (1-4-1. Overview of Coating Weight Measurement System 100P) An overview of a coating weight measurement system 100P according to the reference technology will now be described with reference to Fig. 5. Fig. 5 is a diagram for explaining the inter-device distance calculation process of the coating weight measurement system 100P according to the reference technology.

[0042] Here, the premise of the coating weight measurement system 100P will be explained. In a production process in which some material is applied to some sheet, such as a production line for electrode sheet S, it is desirable to accurately determine the coating weight. In this case, to accurately determine the coating weight after coating, it is necessary to match the trajectories of the positions detected by the detectors 20, which are installed at different positions (the distance between each detector 20), particularly the detectors 20 before and after coating.

[0043] In the coating weight measurement system 100P, the operator W must perform the following operation to adjust the distance between the devices maintained within the system so that the trajectory of the detection point of the detection device 20 does not shift.

[0044] First, the worker W uses the marking pen attachment jig MT (MT-1, MT-2, ...) shown in Figure 5 to attach marking pens MP (MP-1, MP-2, ...) such as oil-based pens to the upper sensor unit 22U (22U-1, 22U-2, ...) or the lower sensor unit 22D (22D-1, 22D-2, ...) of the detection devices 20 (20-1, 20-2, ...). At this time, the worker W attaches the marking pens MP at a height that does not contact the electrode sheet S in order to maintain the condition of the ink in the marking pens MP. In addition, the worker W attaches marking pens MP of different colors to each detection device 20 in order to distinguish the trajectories of each detection device 20. For example, worker W attaches a red oil-based marking pen MP-1 to the marking pen attachment jig MT-1 of the upstream detection device 20-1, "detection device #1," and attaches a blue oil-based marking pen MP-2 to the marking pen attachment jig MT-2 of the downstream detection device 20-2, "detection device #2."

[0045] Second, the worker W starts to feed the electrode sheet S on the coating line. At this time, the worker W adjusts the attachment height of the marking pen MP so that it draws a line on the electrode sheet S, and starts the measurement operation of the system, so that the trajectory detected by the sensor unit 22 of the detection device 20 is actually drawn on the electrode sheet S, as shown in the image in Fig. 5. In the example of Fig. 5, the trajectory of the detection points drawn by the upstream detection device 20-1, "detection device #1", is represented by a dashed line (see Fig. 5(1)), and the trajectory of the detection points drawn by the downstream detection device 20-2, "detection device #2", is represented by a solid line (see Fig. 5(2)).

[0046] Third, the worker W visually checks the trajectories drawn by each detection device 20 and adjusts the inter-device distance maintained within the system so that there is no deviation in the trajectories. At this time, there is usually a difference between the inter-device distance on the CAD drawing of the coating line input as an initial value and the actual delivery path of the coating line, so that the trajectory drawn by the marking pen MP on the electrode sheet S will be offset by the amount of this difference. The worker W checks the amount of offset using a ruler or the like and adjusts the inter-device distance based on this amount of offset. The worker W repeats the above adjustment until the amount of offset in the trajectory drawn by the marking pen MP falls within a specified range.

[0047] (1-4-2. Problems with the Coating Weight Measurement System 100P) The following describes problems with the coating weight measurement system 100P according to the reference technology. First, in the coating weight measurement system 100P, the worker W must manually operate the marking pen mounting jig MT and visually check the trajectory of the marking pen MP. This results in inconsistencies in the accuracy of adjusting the distance between the detection devices 20. Furthermore, in the coating weight measurement system 100P, multiple personnel must be stationed at each device, such as each detection device 20. Furthermore, in the coating weight measurement system 100P, if the detection device 20 uses X-rays or beta rays, radiation management limits the number of workers W who can be stationed near the detection device 20. Second, in the coating weight measurement system 100P, ink from the marking pen MP can adhere to and contaminate the devices on the coating line.

[0048] (1-4-3. Overview of Coating Weight Measurement System 100) An overview of the coating weight measurement system 100 according to the embodiment will be described. The coating weight measurement system 100 performs the following processes. First, when installing the detector 20 on a coating line or during regular inspection, the operator W places a rectangular marking sticker with a certain thickness or greater on the electrode sheet S as a reference marker M. Second, the operator W inputs a detection threshold value at which the detector 20 can detect the thickness of the reference marker M into the measuring device 10 and sets it as the detection threshold value for the detector 20. Third, the operator W feeds the electrode sheet S with the marking sticker attached at a constant speed. Fourth, the detector 20 detects the marking sticker if the detected thickness exceeds the set detection threshold, and outputs the detection distance and detection time as the detection results. Fifth, the measuring device 10 collects the detection distance and detection time based on the output results from the detector 20. Sixth, the measuring device 10 calculates the inter-device distance of the detected devices 20 using the above-mentioned detection distance and detection time, and stores the calculated inter-device distance as the adjusted inter-device distance.

[0049] (1-4-4. Effects of Coating Weight Measurement System 100) The effects of the coating weight measurement system 100 according to the embodiment will be described. First, the coating weight measurement system 100 can automatically adjust the inter-device distance of the detection devices 20 using hardware and software. Therefore, the coating weight measurement system 100 eliminates the need for judgment by the operator W and minimizes variation in the accuracy of the adjustment of the inter-device distance of the detection devices 20. Second, the coating weight measurement system 100 does not use marking pens MP, and the operator W does not need to visually check the trajectory. Therefore, the coating weight measurement system 100 minimizes the number of personnel required to adjust the inter-device distance of the detection devices 20, and also minimizes work near the detection devices 20 by eliminating the need to operate the marking pen mounting jig MT. Third, the coating weight measurement system 100 solves the problem of ink adhering to each device on the coating line by adopting a mechanism that does not use marking pens MP.

[0050] As described above, the coating weight measurement system 100 can easily determine the installation position of each detection device included in the production line.

[0051] 2. Configuration and Processing of Each Device in Coating Weight Measurement System 100 The configuration and processing of each device included in the coating weight measurement system 100 shown in Fig. 1 will be described using Fig. 6. Fig. 6 is a block diagram showing an example configuration of each device of the coating weight measurement system 100 according to an embodiment. Below, an example configuration of the entire coating weight measurement system 100 according to an embodiment, an example configuration and processing of the measuring device 10, and an example configuration and processing of the detection device 20 will be described.

[0052] (2-1. Example of the overall configuration of the coating weight measurement system 100) An example of the overall configuration of the coating weight measurement system 100 shown in Fig. 1 will be described using Fig. 6. As shown in Fig. 6, the coating weight measurement system 100 has a measuring device 10 and a detecting device 20. The measuring device 10 and the detecting device 20 are communicably connected by a communication network N realized by the Internet, a dedicated line, or the like. The measuring device 10, a coating device CM (not shown), a drying device DM (not shown), and a coating line device (not shown) are communicably connected by analog signals, pulse signals, Ethernet (registered trademark), or the like.

[0053] (2-2. Configuration Example and Processing Example of Measuring Device 10) An example of the configuration and processing of the measurement device 10 will be described with reference to Fig. 6. The measurement device 10 has an input unit 11, an output unit 12, a communication unit 13, a storage unit 14, and a control unit 15.

[0054] (2-2-1. Input section 11) The input unit 11 controls input of various information to the measurement device 10. For example, the input unit 11 is realized by a mouse, a keyboard, etc., and accepts input of various information to the measurement device 10.

[0055] (2-2-2. Output section 12) The output unit 12 controls the output of various information from the measurement device 10. For example, the output unit 12 is realized by a display or the like, and displays various information stored in the measurement device 10.

[0056] (2-2-3. Communications Department 13) The communication unit 13 controls data communication with other devices. For example, the communication unit 13 performs data communication with each communication device via a router, etc. The communication unit 13 can also perform data communication with a terminal (not shown).

[0057] (2-2-4. Storage section 14) Storage unit 14 stores various pieces of information referenced by control unit 15 when it operates and various pieces of information acquired when control unit 15 operates. Storage unit 14 includes detection threshold storage unit 14a, detection result storage unit 14b, and calculation result storage unit 14c. Here, storage unit 14 may be realized by, for example, a semiconductor memory element such as RAM (Random Access Memory) or flash memory, or a storage device such as a hard disk or optical disk. Note that, although storage unit 14 is installed inside measurement device 10 in the example of FIG. 6, it may also be installed outside measurement device 10, or multiple storage units may be installed.

[0058] (2-2-4-1. Detection threshold storage unit 14a) The detection threshold storage unit 14a stores a detection threshold. For example, the detection threshold storage unit 14a stores a detection threshold received by a receiving unit 15a of the control unit 15, which will be described later. Here, an example of data stored in the detection threshold storage unit 14a will be described with reference to FIG. 7. FIG. 7 is a diagram showing an example of the detection threshold storage unit 14a of the measurement device 10 according to the embodiment. In the example of FIG. 7, the detection threshold storage unit 14a has items such as "adjustment target," "adjustment schedule," and "detection threshold."

[0059] "Adjustment target" indicates identification information for identifying the production process of the measurement target for which the inter-device distance is to be adjusted, for example, the identification number or identification symbol of the coating line of the electrode sheet S. "Adjustment schedule" indicates the schedule for adjusting the inter-device distance, for example, expressed as the date of installation of the detection device 20 or the date of regular inspection of the coating line. "Detection threshold" indicates the threshold of the detection strength of the measurement target, for example, basis weight (g / m 2 ), thickness (mm), and signal value in voltage (V).

[0060] That is, FIG. 7 shows an example in which data such as {adjustment schedule: "adjustment date #1", detection threshold: "detection threshold #1"}, {adjustment schedule: "adjustment date #2", detection threshold: "detection threshold #2"}, {adjustment schedule: "adjustment date #3", detection threshold: "detection threshold #3"}, etc. are stored in the detection threshold memory unit 14a for the adjustment target identified by "coating line #1".

[0061] 7 illustrates an example in which a detection threshold is stored for each adjustment schedule, but the detection threshold storage unit 14a may store a single detection threshold corresponding to the adjustment target. That is, the detection threshold storage unit 14a may store a single detection threshold, "detection threshold #1," for the adjustment target identified by "coating line #1," and update the stored detection threshold each time a new detection threshold is received by the receiving unit 15a.

[0062] (2-2-4-2. Detection result storage unit 14b) The detection result storage unit 14b stores the detection results. For example, the detection result storage unit 14b stores the detection results collected by the collection unit 15b of the control unit 15, which will be described later. Here, an example of data stored in the detection result storage unit 14b will be described with reference to FIG. 8. FIG. 8 is a diagram showing an example of the detection result storage unit 14b of the measurement device 10 according to the embodiment. In the example of FIG. 8, the detection result storage unit 14b has items such as "adjustment target," "adjustment schedule," "detection device," and "detection result."

[0063] "Adjustment target" indicates identification information for identifying the production process of the measurement object for which the inter-device distance is to be adjusted, for example, the identification number or identification symbol of the coating line for the electrode sheet S. "Adjustment schedule" indicates the schedule for adjusting the inter-device distance, for example, expressed as the date when the detection device 20 was installed or the date of regular inspection of the coating line. "Detection device" indicates identification information of the detection device 20 that adjusts the inter-device distance, for example, the identification number or identification symbol of the detection device 20 installed from the upstream side to the downstream side of the coating line. "Detection result" indicates information regarding the position or time of the reference marker M detected by the detection device 20, for example, the detected distance indicating the total distance the electrode sheet S has been fed, expressed in meters (m), or the detection time indicating the time when the reference marker M was detected, expressed in hours, minutes, and seconds.

[0064] That is, Figure 8 shows an example in which data such as {detection device: "detection device #1", detection result: "detection result #1"}, {detection device: "detection device #2", detection result: "detection result #2"}, {detection device: "detection device #3", detection result: "detection result #3"}, {detection device: "detection device #4", detection result: "detection result #4"}, etc. are stored in the detection result memory unit 14b for the adjustment target identified by "coating line #1" and the adjustment schedule identified by "adjustment date #1".

[0065] (2-2-4-3. Calculation result storage unit 14c) The calculation result storage unit 14c stores the calculation results. For example, the calculation result storage unit 14c stores the calculation results output by the calculation unit 15c of the control unit 15, which will be described later. Here, an example of data stored in the calculation result storage unit 14c will be described with reference to FIG. 9. FIG. 9 is a diagram showing an example of the calculation result storage unit 14c of the measurement device 10 according to the embodiment. In the example of FIG. 9, the calculation result storage unit 14c has items such as "adjustment target," "adjustment schedule," "detection device 1," "detection device 2," and "calculation result."

[0066] "Adjustment target" indicates identification information for identifying the production process of the measurement object for which the inter-device distance is to be adjusted, for example, the identification number or identification symbol of the coating line for the electrode sheet S. "Adjustment schedule" indicates the schedule for adjusting the inter-device distance, for example, expressed as the date when the detection device 20 was installed or the date of regular inspection of the coating line. "Detection device 1" indicates identification information of the upstream detection device 20 for adjusting the inter-device distance, for example, the identification number or identification symbol of the detection device 20 installed closer to the start point of the coating line. "Detection device 2" indicates identification information of the downstream detection device 20 for adjusting the inter-device distance, for example, the identification number or identification symbol of the detection device 20 installed farther from the start point of the coating line. "Calculation result" indicates the inter-device distance of the detection devices 20 calculated from the detection result, for example, expressed in meters (m).

[0067] That is, Figure 9 shows an example in which, for the adjustment target identified by "coating line #1" and the adjustment schedule identified by "adjustment date #1", the inter-device distance calculated by the upstream "detection device #1" and the downstream "detection device #2" is "inter-device distance #1", the inter-device distance calculated by the upstream "detection device #2" and the downstream "detection device #3" is "inter-device distance #2", the inter-device distance calculated by the upstream "detection device #3" and the downstream "detection device #4" is "inter-device distance #3", ... data is stored in the calculation result memory unit 14c.

[0068] (2-2-5. Control unit 15) The control unit 15 is responsible for overall control of the measurement device 10. The control unit 15 has a receiving unit 15a, a collecting unit 15b, and a calculating unit 15c. Here, the control unit 15 can be realized by, for example, an electronic circuit such as a CPU (Central Processing Unit) or an MPU (Micro Processing Unit), or an integrated circuit such as an ASIC (Application Specific Integrated Circuit) or an FPGA (Field Programmable Gate Array).

[0069] (2-2-5-1. Reception section 15a) The reception unit 15a receives various types of information. The reception unit 15a may store the received various types of information in the storage unit 14. The detection threshold value reception control process and the detection threshold value transmission process will be described below.

[0070] (Detection threshold acceptance control processing) The receiving unit 15a executes a detection threshold acceptance control process. For example, the receiving unit 15a accepts a detection threshold for detecting a reference marker M. For example, the reference marker M is a sticker-like marker attached to the object to be measured. The receiving unit 15a also stores the accepted detection threshold in the memory unit 14.

[0071] To explain a specific example of the detection threshold acceptance control process, the acceptance unit 15a accepts {adjustment target: "coating line #1", adjustment schedule: "adjustment date #1", detection threshold: "detection threshold #1"} as the detection threshold input by the worker W via the input unit 11, and stores it in the detection threshold memory unit 14a.

[0072] (Detection threshold transmission process) The reception unit 15a executes a detection threshold transmission process. For example, the reception unit 15a transmits a detection threshold for detecting the reference marker M to each detection device 20. At this time, the reception unit 15a refers to the detection threshold stored in the storage unit 14.

[0073] To explain a specific example of the detection threshold transmission process, the reception unit 15a refers to {Adjustment target: "Coating line #1", adjustment schedule: "Adjustment date #1", detection threshold: "Detection threshold #1"} as the detection threshold stored in the detection threshold memory unit 14a, and transmits the referenced detection thresholds to "Detection device #1", "Detection device #2", "Detection device #3", "Detection device #4", ... as each detection device 20 installed on the "Coating line #1" that is the adjustment target, and sets them as the detection conditions of each detection device 20.

[0074] (2-2-5-2. Collection unit 15b) The collection unit 15b collects various types of information. The collection unit 15b may store the collected various types of information in the storage unit 14. Below, a specific example of the detection result collection control process (detection distance collection control process, detection time collection control process) and the reference marker M will be described.

[0075] (Detection result collection control process) The collecting unit 15b executes a detection result collection control process. For example, the collecting unit 15b collects the detection results of the reference marker M detected by each detecting device 20 from each detecting device 20 installed in the transmission direction of the measurement object having the reference marker M. At this time, the collecting unit 15b collects the detection results detected by the sensor unit 22 of each detecting device 20. The collecting unit 15b also collects the detection results detected by each detecting device 20 according to a detection threshold.

[0076] To explain a specific example of the detection result collection control process, the collection unit 15b collects "detection result #1" as the detection result detected by the sensor unit 22-1 of "detection device #1" which is the detection device 20-1, collects "detection result #2" as the detection result detected by the sensor unit 22-2 of "detection device #2" which is the detection device 20-2, and collects "detection result #3" as the detection result detected by the sensor unit 22-3 of "detection device #3" which is the detection device 20-3, and stores each of them in the detection result memory unit 14b.

[0077] (Detection distance collection control processing) The collection unit 15b executes a detection distance collection control process as the detection result collection control process. For example, the collection unit 15b collects, as the detection result, each detection distance indicating the total distance the measurement object has been sent. At this time, the collection unit 15b collects, for example, each detection distance indicating the total distance the electrode sheet S has been sent.

[0078] To explain a specific example of the detection distance collection control process, the collection unit 15b collects "detection distance #1" as the detection distance detected by the sensor unit 22-1 of "detection device #1" which is the detection device 20-1, collects "detection distance #2" as the detection distance detected by the sensor unit 22-2 of "detection device #2" which is the detection device 20-2, and collects "detection distance #3" as the detection distance detected by the sensor unit 22-3 of "detection device #3" which is the detection device 20-3, and stores each in the detection result memory unit 14b.

[0079] (Detection time collection control process) The collection unit 15b executes a detection time collection control process as the detection result collection control process. For example, the collection unit 15b collects, as the detection result, detection times indicating the times at which the reference markers M were detected. At this time, the collection unit 15b collects, for example, detection times indicating the times at which the sticker-like reference markers M attached to the electrode sheet S were detected.

[0080] To explain a specific example of the detection time collection control process, the collection unit 15b collects "detection time #1" as the detection time detected by the sensor unit 22-1 of "detection device #1" which is the detection device 20-1, collects "detection time #2" as the detection time detected by the sensor unit 22-2 of "detection device #2" which is the detection device 20-2, and collects "detection time #3" as the detection time detected by the sensor unit 22-3 of "detection device #3" which is the detection device 20-3, and stores each in the detection result memory unit 14b.

[0081] (2-2-5-3. Calculation part 15c) The calculation unit 15c outputs the calculation result. Note that the calculation unit 15c may store the output calculation result in the storage unit 14. The calculation result management process (detection distance analysis process, detection time analysis process) and the calculation result update process will be described below.

[0082] (Calculation result management processing) The calculation unit 15c executes a calculation result management process. For example, the calculation unit 15c calculates an inter-device distance indicating the interval at which each of the detected devices 20 is installed, based on the collected detection results.

[0083] To explain a specific example of the calculation result management process, the calculation unit 15c refers to the detection results stored in the detection result memory unit 14b, such as {detecting device: "detecting device #1", detection result: "detection result #1"}, {detecting device: "detecting device #2", detection result: "detection result #2"}, {detecting device: "detecting device #3", detection result: "detection result #3"}, and {detecting device: "detecting device #4", detection result: "detection result #4"}, calculates the inter-device distance between the upstream "detecting device #1" and the downstream "detecting device #2" as "inter-device distance #1", the inter-device distance between the upstream "detecting device #2" and the downstream "detecting device #3" as "inter-device distance #2", and the inter-device distance between the upstream "detecting device #3" and the downstream "detecting device #4" as "inter-device distance #3", and stores the calculation results in the calculation result memory unit 14c.

[0084] (Detection distance analysis processing) The collection unit 15b executes a detection distance analysis process as a calculation result management process. For example, the calculation unit 15c calculates the difference between the detection distances of each of the detected devices 20 as the inter-device distance.

[0085] To explain a specific example of the detection distance analysis process, the calculation unit 15c refers to {detection device: "detection device #1", detection distance: "detection distance #1"}, {detection device: "detection device #2", detection distance: "detection distance #2"}, {detection device: "detection device #3", detection distance: "detection distance #3"}, and {detection device: "detection device #4", detection distance: "detection distance #4"} as the detection results stored in the detection result memory unit 14b, calculates the difference between "detection distance #2" and "detection distance #1" as "inter-device distance #1", the difference between "detection distance #3" and "detection distance #2" as "inter-device distance #2", and the difference between "detection distance #4" and "detection distance #3" as "inter-device distance #3", and stores the calculation results in the calculation result memory unit 14c.

[0086] (Detection time analysis processing) The collection unit 15b executes a detection time analysis process as a calculation result management process. For example, the calculation unit 15c calculates the product of the difference between the detection times of the detecting devices 20 and the sending speed indicating the speed at which the measurement object is sent, as the inter-device distance.

[0087] To explain a specific example of the detection time analysis process, the calculation unit 15c refers to {detecting device: "detecting device #1", detection time: "detection time #1"}, {detecting device: "detecting device #2", detection time: "detection time #2"}, {detecting device: "detecting device #3", detection time: "detection time #3"}, and {detecting device: "detecting device #4", detection time: "detection time #4"} as the detection results stored in the detection result storage unit 14b, and further calculates the electrode sheet The unit 14c refers to the "transmission speed #1" which is the transmission speed of the host S, and calculates the "inter-device distance #1" by multiplying the difference between "detection time #2" and "detection time #1" by the "transmission speed #1", calculates the "inter-device distance #2" by multiplying the difference between "detection time #3" and "detection time #2" by the "transmission speed #1", and calculates the "inter-device distance #3" by multiplying the difference between "detection time #4" and "detection time #3" by the "transmission speed #1", and stores the calculation results in the calculation result memory unit 14c.

[0088] (Calculation result update process) The calculation unit 15c executes a calculation result update process, for example, the calculation unit 15c updates parameters used when measuring the measurement target using the calculated inter-device distance.

[0089] To explain a specific example of the calculation result update process, the calculation unit 15c uses the calculated "device-to-device distance #1," "device-to-device distance #2," and "device-to-device distance #3" to update the parameters used when synchronizing the sensor unit 22 (parameters for adjusting the measurement position of the sensor unit 22).

[0090] (2-3. Configuration example and processing example of the detection device 20) Referring again to FIG. 6, a configuration example and a processing example of the detection device 20 will be described. The detection device 20 is installed in a coating line where a sheet-like object to be measured is coated. For example, the detection device 20 is installed in a coating line where an electrode sheet S is coated. The detection device 20 also has a frame unit 21, a sensor unit 22, and a control unit 23.

[0091] (2-3-1. Frame part 21) The frame section 21 is a housing section made of metal, and the sensor section 22 (sensor section upper section 22U, sensor section lower section 22D) is installed therein.

[0092] (2-3-2. Sensor unit 22) The sensor unit 22 irradiates a sheet-like measurement object with measurement light such as radiation or infrared light and acquires the transmission intensity of the measurement light. For example, the sensor unit 22 is realized by upper and lower sensor heads, a light source that generates measurement light, etc., and acquires the transmission intensity of the measurement light irradiated onto the electrode sheet S.

[0093] (2-3-3. Control unit 23) The control unit 23 is connected to the sensor unit 22 so as to be able to communicate with it via wire or wirelessly. The control unit 23 also controls processes such as the reciprocating movement of the sensor unit 22 along the frame unit 21, the irradiation of the measurement light, and the acquisition of the transmission intensity. The control unit 23 also calculates the thickness (mm) and mass (g) of the electrode sheet S from the transmission intensity of the electrode sheet S detected by the sensor unit 22. The control unit 23 may also transmit the transmission intensity of the electrode sheet S detected by the sensor unit 22 to the measuring device 10, causing the measuring device 10 to calculate the thickness (mm) and mass (g) of the electrode sheet S.

[0094] 3. Specific Examples of Each Process of Coating Weight Measurement System 100 10 to 12, specific examples of each process of the coating mass measurement system 100 according to the embodiment will be described. Below, specific examples of the reference marker M, a specific example of the reference marker detection process of the detection device 20, and a specific example of the inter-device distance calculation process of the measurement device 10 will be described.

[0095] (3-1. Specific examples of reference marker M) A specific example of the reference marker M will be described with reference to Fig. 10. Fig. 10 is a diagram showing a specific example of the reference marker M according to the embodiment. A basic example and modified examples of the reference marker M will be described below.

[0096] (3-1-1. Basic example) A basic example of a method for installing the reference marker M will be described. In the example of FIG. 10, the reference marker M is a sticker-like marker (marking sticker) attached to the object to be measured. For example, the reference marker M is a rectangular marking sticker with a certain thickness or more attached to the electrode sheet S. The reference marker M is also, for example, a paper tape. In this case, since there is a possibility that deviations in the detection results may occur due to the electrode sheet S meandering on the coating line, it is desirable to attach the marking sticker so that its longitudinal direction is perpendicular to the flow direction of the electrode sheet S.

[0097] (3-1-2. Variations) Modified examples of the installation method of the reference marker M will be described. The reference marker M may be a sticker-like marker in a circular, oval, triangular, or other shape, as long as it is a marker that can be detected by the detection device 20. The reference marker M may also be made of a material different from the object to be measured, which is glued or welded to the object. The reference marker M may also be made by applying paint to the object to be measured (e.g., by using a photosensor and setting the output unit of the photosensor as a threshold value to optically detect color) or by marking (e.g., by setting a negative threshold value for thickness or basis weight to detect marking). The reference marker M may not only be a single marker, but may also be a plurality of markers affixed to the object to be measured at regular intervals.

[0098] (3-2. Specific Example of Reference Marker Detection Process by the Detection Device 20) A specific example of the reference marker detection process of the detector 20 will be described using Fig. 11. Fig. 11 is a diagram showing a specific example of the reference marker detection process of the detector 20 according to the embodiment. Below, a basic example and modified examples of the reference marker detection process of the detector 20 will be described.

[0099] (3-2-1. Basic example) A basic example of the reference marker detection process of the detector 20 will be described. In the example of Fig. 11, the detector 20 is installed on a coating line that coats the electrode sheet S. For example, a sensor unit 22-1 of the detector 20-1 on the upstream side of the coating line detects a reference marker M installed on the electrode sheet S. Furthermore, a sensor unit 22-2 of the detector 20-2 on the downstream side of the coating line detects a reference marker M installed on the electrode sheet S.

[0100] In the above basic example, it is preferable that each detection device 20 detects the reference marker M with each sensor unit 22 fixed so as not to scan back and forth across the delivered electrode sheet S. By fixing each sensor unit 22, the detection device 20 can detect the reference marker M, for example, even if the reference marker M is placed only near the center of the electrode sheet S in the direction perpendicular to the electrode sheet flow direction.

[0101] (3-2-2. Application example) A modified example of the reference marker detection process of the detection device 20 will be described. As described above in (3-1. Specific Examples of Reference Marker M) and (3-1-2. Modifications), the reference marker M may be a single marker or multiple markers attached at regular intervals to the object to be measured. In this case, the measurement device 10 collects the detection results of the reference markers M at multiple locations, calculates the inter-device distances corresponding to the number of reference markers M installed in one transmission of the object to be measured, and calculates the average value of the calculated inter-device distances. In this case, the measurement device 10 eliminates significantly different values ​​to reduce the effects of erroneous detection due to noise, communication delays, etc.

[0102] When using multiple reference markers M as described above, it is advisable to determine in advance the intervals at which the reference markers M, such as marking stickers, are affixed. This is because the detection device 20 cannot correctly detect the reference markers M if they are too close to each other when the response of the sensor unit 22 is poor. Furthermore, since the intervals are fixed, the measurement device 10 can also exclude detection results with significant deviations.

[0103] Furthermore, the detection device 20 can improve accuracy by using not only the detection result of the rising edge of the reference marker M but also the detection result of the falling edge. That is, the detection device 20 can not only obtain two detection results for one reference marker M, but also determine erroneous detection due to noise or the like by knowing the size of the reference marker M, such as a marking sticker, in advance. Furthermore, depending on the sensor unit 22, the detection device 20 has better responsiveness to the falling edge than to the rising edge, so the detection device 20 can improve accuracy by adopting the detection result of the falling edge.

[0104] (3-3. Specific Example of Inter-Device Distance Calculation Process of Measuring Device 10) A specific example of the calculation result will be described using Fig. 12. Fig. 12 is a diagram showing a specific example of the inter-device distance calculation process of the measurement device 10 according to the embodiment. Below, a basic example, a modified example, and an application example of the inter-device distance calculation process of the measurement device 10 will be described.

[0105] (3-3-1. Basic example) A basic example of the inter-device distance calculation process of the measuring device 10 will be described. In the example of FIG. 12(1), when the detection value of the detecting device 20-1 on the upstream side of the coating line, "detecting device #1," exceeds the reference marker threshold, the detected distance of the reference marker M is detected as "5000 mm." In the example of FIG. 12(2), when the detection value of the detecting device 20-2 on the downstream side of the coating line, "detecting device #2," exceeds the reference marker threshold, the detected distance of the reference marker M is detected as "12000 mm." Then, the measuring device 10 calculates "7000 mm," which is the difference between "12000 mm" and "5000 mm," as the inter-device distance between "detecting device #2" and "detecting device #1."

[0106] (3-3-2. Variations) We will now explain modified examples of the inter-device distance calculation process of the measuring device 10. In the above (3-3-1. Basic Example), we have explained a specific example of the inter-device distance calculation process using the detected distance as the detection result, but the measuring device 10 can also execute the inter-device distance calculation process using the detection time as the detection result if the transmission speed is known (it is preferable that the transmission speed is constant). Two methods that can be adopted will be explained below.

[0107] (3-3-2-1. Method 1) Method 1 of calculating the distance between devices using the detection time as the detection result will be described below. First, the measuring device 10 synchronizes the internal dates and times of the detecting devices 20 in advance by performing date and time synchronization. Second, the detecting device 20 records the date and time when it obtains a detection value that exceeds the detection threshold of a reference marker M such as a marking sticker, and transmits that date and time to the measuring device 10. Third, the measuring device 10 multiplies the difference between the received dates and times by the delivery speed of the electrode sheet S to determine the distance between the devices.

[0108] (3-3-2-2. Method 2) Method 2 of calculating the distance between devices using the detection time as the detection result will be described below. First, when the detection threshold of the reference marker M such as a marking sticker is exceeded, the detection device 20 immediately notifies the measurement device 10. Second, the measurement device 10 records the date and time when it receives the notification, and multiplies the difference between the dates and times by the delivery speed of the electrode sheet S to determine the distance between the devices.

[0109] (3-3-3. Application examples) A description will be given of an application example of the inter-device distance calculation process of the measuring device 10. The following describes the process of smoothing the detected values ​​as a noise countermeasure.

[0110] In measurements using measurement light, the detected value may suddenly change due to statistical fluctuations or noise in the measurement light, which may result in the detection threshold of a reference marker M, such as a marking sticker, being exceeded at an incorrect position or time. As a countermeasure against the above, the measurement device 10 may also perform a smoothing process on the detected value. For example, the measurement device 10 may perform the smoothing process using a moving average, FIR (Finite Impulse Response), or the like, assuming that the delay time due to smoothing is constant. Note that if the delay time is constant, even if a deviation occurs between the position or time at which the reference marker M passes through the detection device 20 and the position or time at which it is detected, the deviation is considered to occur equally for each detection device 20, and therefore the deviation can be ignored.

[0111] 4. Flow of each process in the coating weight measurement system 100 13 to 16, the processing flow of the coating weight measurement system 100 according to the embodiment will be described. Below, the processing flow of the entire coating weight measurement system 100 will be described, and then each processing step, that is, the reference marker management processing, the detection result management processing, and the calculation result management processing, will be described.

[0112] (4-1. Overall processing of the coating weight measurement system 100) The overall processing flow of the coating weight measurement system 100 according to the embodiment will be described using Figure 13. Figure 13 is a flowchart showing an example of the overall processing flow of the coating weight measurement system 100 according to the embodiment. Note that the processing of steps S101 to S103 below can also be performed in a different order. Furthermore, some of the processing of steps S101 to S103 below may be omitted.

[0113] (4-1-1. Reference marker management processing) First, the coating weight measurement system 100 executes a reference marker management process (step S101). For example, the coating weight measurement system 100 executes the processes of steps S201 to S203 described below to place a reference marker M on the electrode sheet S and set a detection threshold value that indicates the detection condition for the reference marker M.

[0114] (4-1-2. Detection result management process) Second, the coating weight measurement system 100 executes a detection result management process (step S102). For example, the coating weight measurement system 100 executes the processes of steps S301 to S305 described below to detect a reference marker M placed on the electrode sheet S and collects detection results indicating the position or time when the reference marker M was detected.

[0115] (4-1-3. Calculation result management processing) Third, the coating mass measurement system 100 executes a calculation result management process (step S103). For example, the coating mass measurement system 100 executes the processes of steps S401 to S403 described below to calculate the inter-device distance of the detection devices 20 from the detection result indicating the position or time when the reference marker M was detected.

[0116] (4-2. Reference marker management processing) The flow of the reference marker management process according to the embodiment will be described with reference to Fig. 14. Fig. 14 is a flowchart showing an example of the flow of the reference marker management process of the coating mass measurement system 100 according to the embodiment. Note that the processes of steps S201 to S203 below can be executed in a different order. Furthermore, some of the processes of steps S201 to S203 below may be omitted.

[0117] (4-2-1. Reference marker installation process) First, the worker W performs a reference marker installation process (step S201). For example, when the detection device 20 is installed on a coating line or during periodic inspection, the worker W affixes a rectangular marking sticker having a certain thickness or more to the electrode sheet S. In this case, the reference marker installation process may be performed by an installation device that affixes the marking sticker, instead of the worker W.

[0118] (4-2-2. Detection threshold input processing) Second, the worker W executes a detection threshold input process (step S202). For example, the worker W sets a detection threshold that the detection device 20 can detect as the thickness of the marking sticker, and inputs the detection threshold into the measuring device 10. The above detection threshold input process can be omitted if the measuring device 10 holds an internally defined detection threshold.

[0119] (4-2-3. Detection threshold storage process) Third, the measurement device 10 executes a detection threshold value storage process (step S203). For example, the measurement device 10 stores the input detection threshold value in the detection threshold value storage unit 14a.

[0120] (4-3. Detection result management process) The flow of the detection result management process according to this embodiment will be described with reference to Fig. 15. Fig. 15 is a flowchart showing an example of the flow of the detection result management process of the coating mass measurement system 100 according to this embodiment. Note that the processes of steps S301 to S305 below can also be executed in a different order. Furthermore, some of the processes of steps S301 to S305 below may be omitted.

[0121] (4-3-1. Detection threshold transmission process) First, the measuring device 10 executes a detection threshold transmission process (step S301). For example, the measuring device 10 transmits the detection threshold stored in the detection threshold storage unit 14a to each detecting device 20.

[0122] (4-3-2. Sheet sending process) Second, the worker W executes a sheet delivery process (step S302). For example, the worker W operates the rollers of the coating line to deliver the electrode sheet S with the marking sticker attached at a constant delivery speed V (m / s).

[0123] (4-3-3. Reference marker detection process) Third, the detection device 20 executes a reference marker detection process (step S303). For example, the detection device 20 detects the marking sticker on the delivered electrode sheet S when the detection threshold set by the measurement device 10 is exceeded.

[0124] (4-3-4. Detection result collection process) Fourth, the measuring device 10 executes a detection result collection process (step S304). For example, the measuring device 10 collects the detection distance or detection time of the marking sticker on the electrode sheet S from each detector 20 as the detection result.

[0125] (4-3-5. Detection result storage process) Fifth, the measurement device 10 executes a detection result storage process (step S305). For example, the measurement device 10 stores the detection distance or the detection time of the marking sticker on the electrode sheet S as the detection result in the detection result storage unit 14b.

[0126] (4-4. Calculation result management processing) The flow of the calculation result management process according to the embodiment will be described with reference to Fig. 16. Fig. 16 is a flowchart showing an example of the flow of the calculation result management process of the coating mass measurement system 100 according to the embodiment. Note that the processes of steps S401 to S403 below can also be executed in a different order. Furthermore, some of the processes of steps S401 to S403 below may be omitted.

[0127] (4-4-1. Detection result reference process) First, the measurement device 10 executes a detection result reference process (step S401). For example, the measurement device 10 references the detection distance or the detection time of the marking sticker on the electrode sheet S stored in the detection result storage unit 14b as the detection result.

[0128] (4-4-2. Calculation of distance between devices) Second, the measuring device 10 executes an inter-device distance calculation process (step S402). For example, the measuring device 10 calculates the inter-device distance of the detecting device 20 using the detection distance or detection time of the marking sticker on the electrode sheet S.

[0129] (4-4-3. Calculation result storage process) Third, the measuring device 10 executes a calculation result storage process (step S403). For example, the measuring device 10 stores the inter-device distances of the detected devices 20 as the calculation result in the calculation result storage unit 14c.

[0130] 5. Effects of the embodiment Finally, the effects of the embodiment will be described below: Effects 1 to 8 corresponding to the processing according to the embodiment will be described below.

[0131] (5-1. Effect 1) First, in the process according to the embodiment described above, the measuring device 10 collects the detection results of the reference marker M detected by each of the detecting devices 20 installed in the sending direction of the measurement object having the reference marker M, and calculates the inter-device distance indicating the interval at which each of the detecting devices 20 is installed based on the collected detection results. Therefore, in this process, the installation positions of each of the detecting devices 20 included in the production line can be easily determined.

[0132] (5-2. Effect 2) Second, in the process according to the embodiment described above, each detector 20 has a sensor unit 22 that irradiates a sheet-like measurement object with measurement light and acquires the transmission intensity of the measurement light. Furthermore, the measuring device 10 collects the detection results detected by the sensor unit 22 of each detector 20. Therefore, in this process, when measuring the coating weight using measurement light, the installation position of each detector 20 included in the production line can be easily determined.

[0133] (5-3. Effect 3) Third, in the process according to the embodiment described above, the measurement device 10 receives a detection threshold for detecting the reference marker M, transmits the received detection threshold to each detection device 20, and collects the detection results detected by each detection device 20 according to the detection threshold. Therefore, in this process, the installation position of each detection device 20 for which the detection conditions for the reference marker M have been set can be easily determined.

[0134] (5-4. Effect 4) Fourth, in the process according to the embodiment described above, the measuring device 10 collects, as the detection result, the detection distance indicating the total distance over which the measurement object has been sent, and calculates the difference between the detection distances of each of the detecting devices 20 as the inter-device distance. Therefore, in this process, the installation position of each detecting device 20 included in the production line can be easily determined based on the distance over which the measurement object has been sent.

[0135] (5-5. Effect 5) Fifth, in the process according to the embodiment described above, the measuring device 10 collects, as the detection result, the detection time indicating the time when the reference marker M was detected, and calculates the inter-device distance as the product of the difference between the detection times of each detector 20 and the sending speed indicating the speed at which the object to be measured was sent. Therefore, in this process, the installation position of each detector 20 included in the production line can be easily determined based on the detection time of the reference marker M.

[0136] (5-6. Effect 6) Sixth, in the process according to the embodiment described above, the measuring device 10 updates the parameters used when measuring the object to be measured using the calculated inter-device distance. Therefore, in this process, the installation positions of the detection devices 20 included in the production line can be easily determined, and the inter-device distances of the detection devices 20 can be automatically adjusted at the time of installation, periodic inspection, etc.

[0137] (5-7. Effect 7) Seventh, in the process according to the embodiment described above, the reference marker M is a sticker-like marker attached to the object to be measured. Therefore, in this process, by using the marking sticker, the installation position of each detection device 20 included in the production line can be easily determined.

[0138] (5-8. Effect 8) Eighth, in the process according to the embodiment described above, each detection device 20 is installed in a coating line where a sheet-like object to be measured is coated. Therefore, in this process, the installation position of each detection device 20 included in the coating line can be easily determined.

[0139] [6. System] The information including the processing procedures, control procedures, specific names, various data and parameters shown in the above documents and drawings can be changed arbitrarily unless otherwise specified.

[0140] Furthermore, the components of each device shown in the figure are functional concepts and do not necessarily have to be physically configured as shown. In other words, the specific form of distribution and integration of each device is not limited to that shown. In other words, all or part of them can be functionally or physically distributed and integrated in any unit depending on various loads, usage conditions, etc.

[0141] Furthermore, all or any part of the processing functions performed by each device may be realized by a CPU and a program analyzed and executed by the CPU, or may be realized as hardware using wired logic.

[0142] [7. Hardware] Next, an example of the hardware configuration of the measurement device 10 will be described. Note that other devices may also have a similar hardware configuration. FIG. 17 is a diagram showing an example of the hardware configuration according to an embodiment. As shown in FIG. 17, the measurement device 10 has a communication device 10a, an HDD (Hard Disk Drive) 10b, a memory 10c, and a processor 10d. Furthermore, the components shown in FIG. 17 are connected to each other via a bus or the like.

[0143] The communication device 10a is a network interface card or the like, and communicates with other servers. The HDD 10b stores programs and databases that operate the functions shown in FIG.

[0144] The processor 10d reads out a program that executes the same processes as the respective processing units shown in FIG. 6 from the HDD 10b or the like and loads it into the memory 10c, thereby operating a process that executes each function described in FIG. 6 or the like. For example, this process executes the same functions as the respective processing units of the measurement device 10. Specifically, the processor 10d reads out a program that has the same functions as the reception unit 15a, the collection unit 15b, the calculation unit 15c, or the like from the HDD 10b or the like. Then, the processor 10d executes a process that executes the same processes as the reception unit 15a, the collection unit 15b, the calculation unit 15c, or the like.

[0145] In this way, the measuring device 10 operates as a device that executes various processing methods by reading and executing a program. The measuring device 10 can also realize functions similar to those of the above-described embodiment by reading the program from a recording medium using a media reader and executing the read program. Note that the program in these other embodiments is not limited to being executed by the measuring device 10. For example, the present invention can also be applied in the same way to cases where another computer or server executes the program, or where these execute the program in cooperation with each other.

[0146] This program can be distributed via a network such as the Internet. In addition, this program can be recorded on a computer-readable recording medium such as a hard disk, a flexible disk (FD), a CD-ROM, a magneto-optical disk (MO), or a digital versatile disk (DVD), and can be executed by being read from the recording medium by a computer.

[0147] [8. Other] Some examples of combinations of the disclosed technical features are set out below.

[0148] (1) A measurement device comprising: a collection unit that collects detection results of the reference marker detected by each detection device installed in the transmission direction of a measurement object having a reference marker; and a calculation unit that calculates an inter-device distance indicating the distance at which each detection device is installed based on the collected detection results.

[0149] (2) The measuring device described in (1), wherein each of the detection devices has a sensor unit that irradiates measurement light onto the sheet-shaped measurement object and acquires the transmission intensity of the measurement light, and the collection unit collects the detection results detected by the sensor unit of each of the detection devices.

[0150] (3) The measuring device described in (1) or (2) further includes a receiving unit that receives a detection threshold for detecting the reference marker and transmits the received detection threshold to each of the detection devices, and the collecting unit collects the detection results detected by each of the detection devices according to the detection threshold.

[0151] (4) A measuring device described in any one of (1) to (3), wherein the collection unit collects, as the detection result, a detection distance indicating the total distance over which the object to be measured has been sent, and the calculation unit calculates the difference between the detection distances of each of the detection devices as the inter-device distance.

[0152] (5) A measuring device described in any one of (1) to (4), wherein the collection unit collects, as the detection result, a detection time indicating the time when the reference marker was detected, and the calculation unit calculates, as the distance between the devices, the product of the difference between the detection times of each detection device and a transmission speed indicating the speed at which the object to be measured was transmitted.

[0153] (6) The measurement device according to any one of (1) to (5), wherein the calculation unit uses the calculated inter-device distance to update parameters used when measuring the object to be measured.

[0154] (7) The measurement device according to any one of (1) to (6), wherein the reference marker is a sticker-like marker attached to the object to be measured.

[0155] (8) The measuring device according to any one of (1) to (7), wherein the detecting devices are installed in a coating line that coats the sheet-shaped object to be measured.

[0156] (9) A measurement method in which a computer executes a process in which the computer collects the detection results of the reference marker detected by each detection device installed in the transmission direction of a measurement object having the reference marker, and calculates an inter-device distance indicating the distance at which each detection device is installed based on the collected detection results.

[0157] (10) A measurement program that causes a computer to execute a process of collecting detection results of the reference marker detected by each detection device installed in the transmission direction of a measurement object having a reference marker, and calculating an inter-device distance indicating the distance at which each detection device is installed based on the collected detection results. [Explanation of symbols]

[0158] 10. Measuring equipment 10a Communication equipment 10b HDD 10c memory 10d processor 11 Input section 12 Output section 13 Communications Department 14 Storage section 14a Detection threshold memory unit 14b Detection result storage unit 14c Calculation result storage unit 15 Control Unit 15a Reception 15b Collection Section 15c Calculation part 20 Detection equipment 21 Frame section 22 Sensor section 23 Control Unit 100 Coating Weight Measurement System

Claims

1. a collection unit that collects detection results of the reference markers detected by each of the detection devices installed in a sending direction of the measurement object having the reference markers; a calculation unit that calculates an inter-device distance indicating an interval at which the detecting devices are installed based on the collected detection results; A measuring device comprising:

2. Each of the detecting devices has a sensor unit that irradiates the sheet-like measurement object with measurement light and acquires the transmission intensity of the measurement light, The collecting unit collecting the detection results detected by the sensor units of the respective detection devices; The measuring device according to claim 1 .

3. a receiving unit that receives a detection threshold for detecting the reference marker and transmits the received detection threshold to each of the detecting devices; Furthermore, The collecting unit collecting the detection results detected by each of the detection devices according to the detection threshold; The measuring device according to claim 1 .

4. The collecting unit Collecting, as the detection results, detection distances indicating total distances over which the measurement objects have been sent; The calculation unit calculating a difference between the detection distances of the detecting devices as the inter-device distance; The measuring device according to claim 1 .

5. The collecting unit collecting, as the detection results, detection times indicating the times at which the reference markers were detected; The calculation unit calculating a product of a difference between the detection times of the detecting devices and a sending speed indicating a speed at which the object to be measured is sent out as the distance between the devices; The measuring device according to claim 1 .

6. The calculation unit updating a parameter used when measuring the object to be measured using the calculated inter-device distance; The measuring device according to claim 1 .

7. The reference marker is a sticker-like marker attached to the measurement object.

7. The measuring device according to claim 1.

8. Each of the detection devices is installed in a coating line that coats the sheet-shaped measurement object.

7. The measuring device according to claim 1.

9. The computer collecting detection results of the reference markers detected by each of the detection devices installed in a sending direction of the measurement object having the reference markers; calculating an inter-device distance indicating an interval at which the detecting devices are installed based on the collected detection results; The measurement method by which the process is performed.

10. On the computer, collecting detection results of the reference markers detected by each of the detection devices installed in a sending direction of the measurement object having the reference markers; calculating an inter-device distance indicating an interval at which the detecting devices are installed based on the collected detection results; A measurement program that executes the process.

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