JP2020063108A - Display device, information system using display device, program, and recording medium - Google Patents

Abstract

To provide an information system capable of constantly detecting failure of a display device whichever before or during operation.SOLUTION: The display devices which are disposed continuously in a horizontal direction on each row of storage shelves having a plurality of frontages in the horizontal direction and being arranged in a multi-stage manner, and each of which includes: a confirmation instructing unit for inputting when an operation is completed; and a quantity display unit for indicating the number of pickings. The display device further comprises: a failure detection unit that detects failure in some of 7-segment LEDs, which are light emitting elements constituting the quantity display unit; an error display unit that displays an error display using the light emitting elements on the quantity display unit in which the failure is detected; and an emergency stop signal generation unit that sends a request signal for an emergency stop of a conveying device due to occurrence of the failure.SELECTED DRAWING: Figure 11

Description

  The present invention relates to a picking system for picking up stored items in a storage means for storing many items, and more particularly to an indicator used in the picking system.

  The picking system in physical distribution has an article rack as a storage means for articles. In the picking system, a plurality of storage boxes are usually placed on the article rack, and each storage box stores one or more articles of the same type. The picking operator takes out the required articles in accordance with the instruction of the control means for managing the picking system, puts them in a collection box or the like on the conveyor, and transfers them to the shipping line. For example, a large number of article shelves are arranged side by side, and a conveyor carrying line is provided along the shelves, and the picking operator takes out the goods to be picked from the shelves and puts them into a collection box flowing in the carrying line.

  In this case, an indicator is arranged on the front surface of the article shelf so that the picking operator can identify the storage box of the article to be taken out from the plurality of storage boxes. The display is composed of, for example, a 7-segment LED, and can display the number of articles to be taken out.

  The following Patent Document 1 is known as a picking system using a display device. In Patent Document 1, as shown in FIG. 3, an operator selects a required number from a plurality (three in the figure) of storage boxes placed on each of a plurality of stages (four in the figure) of a storage rack. Remove the item. In this case, a display unit is provided corresponding to each storage box. The display section includes a picking instruction display section (42 in the figure) and a digital numerical value display section (43 in the figure) for instructing the number of products to be picked. Not only in Patent Document 1, but generally in the digital numerical value display unit, a 7-segment LED is used.

JP, 2016-222426, A

  FIG. 3 is an external view of the display device 4 shown in FIG.

  In FIG. 3, a digital display unit 43 for displaying a quantity and a lighting display unit 42 for showing a picking instruction and a work completion input are provided.

  4 is a diagram showing a normal state of the digital display unit 43, and FIG. 5 is a diagram showing a state in which an abnormality has occurred in the digital display unit 43 shown in FIG.

  In FIG. 4, the 7-segment LEDs 431 and 432 are in the off state, and the 7-segment LED 433 is in the quantity display “8” illuminated state, that is, “□□ 8”.

  By the way, in the display device 4 described in Patent Document 1 described above, 7-segment LEDs (Light Emitting Diodes) are arranged in a figure 8 shape for quantity display as shown in FIG. 4, and for example, the right end of FIG. If indicates all LEDs, "8" is displayed. Of these LEDs, for example, when an abnormality occurs in the 7-segment 433 as shown in FIG. 5, for example, a disconnection occurs, “9” is displayed although it should be displayed as “8”. Therefore, the picking work is continued despite the erroneous display.

  To check the normal display device, all the 7-segment LEDs 431, 432, 433 of the digital display units 43 of all the display devices 4 are displayed with “8” before the work is started and visually inspected. "8" was displayed on the digital display section 43 of the display device 4 and visually inspected. Therefore, even if the display device 4 is erroneously displayed in the middle of the work, the work is continued as it is, picking is performed with an incorrect quantity, and when the work of the display device 4 is noticed that an abnormality has occurred, the display device 4 is stopped. Must be replaced and picking all products again.

  Therefore, the first object of the present invention is to always detect the abnormality of the display device before the work is started, regardless of the work, and the second object is to detect the abnormality in the display device. The third purpose is to stop the transport system, and the third purpose is to display an error on the display device in which the abnormality has occurred.

  In order to solve the above problems, a first aspect of the present invention is a display unit that has a plurality of segments and emits light when a segment is energized, and energization that confirms the energized state of each of the plurality of segments. Implemented as a display device including a state confirmation unit and a control unit that controls the display unit to display an error when the conduction state confirmation unit detects an abnormality in the conduction state of any of the plurality of segments. To be done.

  Here, the abnormality includes, for example, disconnection of the internal wiring of the 7-segment LED to turn off the light, or flickering of the LED itself.

  According to the above aspect of the present application, by incorporating a mechanism capable of confirming the energization state of the segment in the display unit, all the segments are momentarily turned on at the time of power-on or at the command of the command to execute the diagnosis and before the picking work is performed. In addition, segment breaks can be detected. Further, since the lighting state is confirmed even during the picking work, the segment break can be detected immediately. When an anomaly is detected, an error is displayed and related persons and others can be informed of the anomaly.

  According to a second aspect of the present invention, a carrier device that is disposed near a storage shelf having a plurality of frontages and that carries a target article and / or a target article package, and a management computer that controls or manages the operation of the carrier device. And a display unit having a plurality of segments, which is arranged in the vicinity of the carrying device and displays picking instruction information or assorting instruction information about the target article and / or the target article package transported by the transport apparatus. A power supply unit that supplies power to at least the carrier device and that supplies power to each of the plurality of segments; and a power supply state confirmation unit that confirms a power supply state by the power supply unit for each of the plurality of segments. , Operating the energization state confirmation unit, the energization state confirmation unit of the energization state of any of the plurality of segments When it detects a normally be implemented as an information system comprising a control unit for controlling to perform error display on the display unit.

  According to the above aspect of the present application, when an abnormality is detected, the management computer can stop the system by reporting to the management computer that an error has occurred. This causes the error to spread, that is, the worker picks the wrong quantity (for example, picking 7 when 8 should be picked because some segments are cut). It is possible to avoid such a situation that an error such as “does not occur” goes unnoticed and it is found that the error has occurred at the time of delivery to the customer.

  As a third aspect of the present invention, in the second aspect of the present invention, the control unit may be provided in the management computer.

  As a fourth aspect of the present invention, in the second or third aspect of the present invention, the control unit, when the energization state confirmation unit detects an abnormality in the energization state of any of the plurality of segments, Further, it is configured to notify the management computer of the detection of the abnormality, and to stop the operation of the transport device when the management computer is notified of the detection of the abnormality from the control unit. Good.

  As a fifth aspect of the present invention, in any one of the second to fourth aspects of the present invention, a rotation warning light operated / controlled by the management computer is further provided, and the control unit is configured to perform the energization. When the state confirmation unit detects an abnormality in the energization state of any of the plurality of segments, the state detection unit further notifies the management computer that the abnormality has been detected, and the management computer causes the control unit to execute the abnormality. The rotation warning light may be operated when the fact that the detection is detected is transmitted.

  When the abnormality occurs, the rotation warning light is activated, so that all workers can be alerted and the work can be stopped.

  As a sixth aspect of the present invention, in any one of the second to fifth aspects of the present invention, the system further comprises a warning sound generation device operated / controlled by the management computer, When the energization state confirmation unit detects an abnormality in the energization state of any one of the plurality of segments, the energization state confirmation unit further notifies the management computer of the detection of the abnormality, and the management computer causes the control unit to perform the operation. The alarm sound generating device may be operated to generate an alarm sound when it is notified that the abnormality is detected.

  By operating the warning sound generator when an abnormality occurs, it is possible to call attention to all workers and notify the operator that the work has stopped.

  A seventh aspect of the present invention is a computer-readable program used for controlling a transportation system, comprising a computer and a target article and / or a target article disposed in the vicinity of a storage rack having a plurality of frontages. With respect to a management unit that controls or manages the operation of a transport device that transports a package, and a display unit that has a plurality of segments and that is disposed in the vicinity of the transport device, the target article and / or the target product that is transported by the transport device. A display unit that displays picking instruction information or assorting instruction information about the target article package, an energization state confirmation unit that confirms the energization state of each of the plurality of segments, and the energization state confirmation unit is operated to perform the energization When the status confirmation unit detects an abnormality in the energization state of any of the plurality of segments, the display To a control unit for controlling to perform error display, function as is realized as a computer readable program.

  As an eighth aspect of the present invention, in the seventh aspect of the present invention, the control unit further includes: when the energization state confirmation unit detects an abnormality in the energization state of any of the plurality of segments; The computer is further operated so as to notify the management unit of the detection of the abnormality, and when the management unit is notified of the detection of the abnormality by the control unit, the operation of the transport device is stopped. It may be configured so as to allow it.

  As a ninth aspect of the present invention, in the seventh or eighth aspect of the present invention, the transport system includes a rotation warning light and a warning sound generation device operated / controlled by the management unit, and the control unit is When the energization state confirmation unit detects an abnormality in the energization state of any of the plurality of segments, it further informs the management unit that the abnormality has been detected, and the management unit controls the control unit. When it is notified that the abnormality has been detected from the computer, the computer is operated to perform at least one of operating the rotation warning light or operating the warning sound generation device to generate a warning sound. It may be configured to operate.

  A tenth aspect of the present invention is realized as a recording medium recording the program according to any one of the seventh to ninth aspects of the present invention.

  According to one embodiment of the present invention, an abnormality in the display device can be constantly detected regardless of whether the work is started or being performed, and the transport system can be stopped when the abnormality occurs in the display device. The display device in which the abnormality has occurred can display an error.

It is a figure which shows a mode that an operator takes out an article from the storage box which accommodates an article in the picking system of one Embodiment of this invention. It is a front view of the goods shelf of FIG. It is a top view which shows the conventional indicator. It is a figure which shows the normal state of the digital display part 43. FIG. 5 is a diagram showing a state where an abnormality has occurred in the digital display section 43 shown in FIG. 4. It is an example of a conceptual diagram of a transport system according to an embodiment of the present invention. FIG. 7 is an example of an external view of a display device used in the system shown in FIG. 6. It is an example of a hardware block diagram of a carrying system with a display device according to an embodiment of the present invention. FIG. 9 is an example of a hardware block diagram of the display device shown in FIG. 8. FIG. 10 is an example of an external perspective view of the 7-segment LED shown in FIG. 9. FIG. 10B is an example of a circuit diagram of the 7-segment LED shown in FIG. 10A. It is an example of a functional block diagram of a conveyance system with a display device according to an embodiment of the present invention. 9 is a part of an example of a flowchart showing an operation of the display device in the transport system with the display device shown in FIG. 8. It is the rest of the flowchart shown in FIG. 12A. 7 is an example of an error display by the display device shown in FIG. 6. 7 is an example of an error display by the display device shown in FIG. 6. 7 is an example of an error display by the display device shown in FIG. 6. 7 is an example of an error display by the display device shown in FIG. 6. 7 is an example of an error display by the display device shown in FIG. 6. 7 is an example of an error display by the display device shown in FIG. 6. 7 is an example of an error display by the display device shown in FIG. 6. 7 is an example of an error display by the display device shown in FIG. 6.

  Hereinafter, a transport system according to an embodiment of the present invention will be described with reference to the drawings. In the following, the range necessary for the explanation to achieve the object of the present invention is schematically shown, and the range necessary for the explanation of the relevant part of the present invention will be mainly explained, and the explanation is omitted. A known technique is used.

  A transport system according to an embodiment of the present invention is a transport device that is disposed near a storage shelf having a plurality of frontages and that transports a target article and / or a target article package, and controls or manages the operation of the transport device. A display having a plurality of segments for displaying picking instruction information or assorting instruction information about a target article and / or a target article package transported by the transport apparatus, the management computer being located near the transport apparatus. Section, a power supply section that supplies power to at least the transport device, and energizes each of the plurality of segments, and an energization state check that confirms the energization state by the power supply section for each of the plurality of segments. Section and the energization state confirmation section are operated, and the energization state confirmation section is connected to one of the plurality of segments. When detecting the energized state abnormality and a controller for controlling to perform error display on the display unit.

  In the above description, the "target article package" refers to anything that packages, packs, or protects the article to be distributed, such as a packaging box such as a so-called corrugated cardboard, a packaging bag, or a so-called returnable box (a so-called distribution box). This includes concepts called "folding containers"), cushioning materials, and necessary identification tags.

  In the above, when the control section operates the energization state confirmation section, it is operated at the same time when the power is turned on, a method of automatically operating at a fixed timing according to a command of the command, and an operation when an instruction from the operator is received. Method, a method of operating when a command by remote control is received via a network, for example, or a combination thereof. Further, the control unit may operate the energization state confirmation unit by a method other than these.

  Further, in the above, "to detect an abnormality in the energization state of any one of a plurality of segments" means that all the known functions that can realize / confirm the energization state to each of the plurality of segments are realized. This means a concept including a thing, and includes detecting the energization state of each segment by current or the like, or detecting the difference from the total value of the current of the driven segments.

  The error display may take various forms. For example, even if one of the 7-segment LEDs cannot be turned on, by adopting a configuration in which different alphanumeric characters are turned on alternately, it can be read by the operator due to the parade rear phenomenon. Can include this configuration. In addition, the parade doria phenomenon is a phenomenon that a familiar familiar pattern does not exist in the original image, even though it occurs in the mind.

  According to the above-described embodiment of the present application, since a mechanism for confirming the energization state of the segment is incorporated in the display, all the segments are momentarily turned on at the time of power-on or a command command, and the diagnosis is performed. Before doing, you can detect segment breaks. Further, since the lighting state is confirmed even during the picking work, the segment break can be detected immediately. When an anomaly is detected, an error is displayed and related persons and others can be informed of the anomaly.

  When an abnormality is detected, the management computer can stop the system by reporting that an error has occurred to the management computer. This causes the error to spread, that is, the worker picks the wrong quantity (for example, picking 7 when 8 should be picked because some segments are cut). It is possible to avoid such a situation that an error such as “does not occur” goes unnoticed and it is found that the error has occurred at the time of delivery to the customer.

  When an abnormality occurs, the rotation warning light operates or the warning sound generating device operates, so that all workers can be alerted and the work can be stopped.

  In addition, although the embodiment as the transport system having the above-described configuration has been described above, another embodiment of the present invention can be realized as a display device or a display system having the above functions.

  An example for actually carrying out the embodiment of the present invention shown above will be described below. However, the following description should be construed as merely an example for carrying out one aspect of the present invention, and the technical idea according to the present invention is the same as that described in the embodiment and the following examples. It should not be construed as limiting.

<Conceptual diagram>
FIG. 6 is an example of a conceptual diagram of a transport system according to an embodiment of the present invention.

  A transport system according to an embodiment of the present invention is arranged horizontally in each row of storage shelves 2 having a plurality of frontages in the horizontal direction and configured in multiple stages, and a confirmation instruction unit to be input when a work operation is completed. , A display device 100 having a quantity display section for indicating the number of pickings, and a belt conveyor (not shown) as a conveyor section which is arranged so as to face the storage shelf 2 and conveys picked articles from the storage shelf 2 to a predetermined place. ) And a display device 100 displays an error display by an abnormality detection unit that detects an abnormality of the 7-segment LED that constitutes the quantity display unit and a light emitting element of the quantity display unit where the abnormality is detected. Equipped with an error display unit and an emergency stop signal generation unit that issues a request signal for an emergency stop of the transport unit due to the occurrence of an abnormality. A display device with conveying system and a PC (personal computer) 10 as a control section for locked. Reference numeral 400 is a rotation warning lamp as a warning unit that operates when the transport unit is stopped in an emergency.

<External view of display device>
FIG. 7 is an example of an external view of a display device used in the system shown in FIG.

  The display device 100 has 7-segment LEDs 101, 102, 103 as a quantity display unit, and a lighting display unit 133 (4) as a confirmation instruction unit for indicating a picking instruction and a work completion input.

<Hardware block diagram>
<Transport system with display device>
FIG. 8 is an example of a hardware block diagram of a carrying system with a display device according to an embodiment of the present invention. The system shown in FIG. 8 includes a PC 10, a drive circuit 11 for driving the motor 12, a motor 12 for a belt conveyor (not shown), a rotation warning light 400, and a large number of display devices 100 connected and connected to the PC 10. is there.

The display device 100 includes a CPU (Central Processing Unit) 130 and a ROM (Read Only).
Memory) 131, RAM (Random Access Memory) 132, switch 133 as a confirmation instructing section, LED 134 for illuminating switch 133 from inside, 7-segment LED 101, 102, 103, drive circuit 1001 for driving 7-segment LED 101, 102, 103 , 1002, 1003, current measuring circuits 104, 105, 106, and an interface I / O 137.

  The CPU 130 is an element that controls the display device 100 as a whole, that is, reads and decodes an instruction and executes the instruction. The CPU 130 has a program counter in which an address indicating from which position in the ROM 131 the instruction is to be read is stored, an instruction decoding circuit for decoding the instruction read from the ROM 131, and an arithmetic circuit for performing arithmetic and logical operations. It is an element having an internal register for storing temporary information.

  The ROM 131 is a read-only memory in which data does not disappear even when the power is turned off, and is an element that stores a control program and constants, and examples thereof include a mask ROM and a flash memory.

  The RAM 132 is a memory that can read and write data, but loses its contents when the power is turned off, and is an element that expands the control program read from the ROM 131. For example, DRAM (Dynamic RAM) or SRAM (Static RAM) Is mentioned.

  The switch 133 is a single-pole / single-throw reset type push button switch, and has an LED 134 for illumination therein. The LED 134 is turned on, turned off, or blinked by a control signal from the CPU 130, separately from the on / off operation of the switch 133.

  Here, the drive circuits 1001, 1002, 1003, the 7-segment LEDs 101, 102, 103, and the current measurement circuits 104, 105, 106 will be described with reference to FIG.

<Display device>
FIG. 9 is an example of a hardware block diagram of the display device shown in FIG. The display device includes a processor 119, driving circuits 1001, 1002, 1003, 7-segment LEDs 101, 102, 103, current measuring circuits 104, 105, 106, and a switch 124.

  The processor 119 is a circuit including the CPU 130, the ROM 131, the RAM 132, and the I / O 137, but may be configured by a one-chip IC (Integrated Circuit). The processor 119 is connected to a power supply line Vcc, a control line Cnt, an alarm line Ptrl, a clock line Clk, and a ground line GND. The decoder 119 for the 7-segment LED 101, the decoder 117 for the 7-segment LED 102, and the decoder 118 for the 7-segment LED 103 are connected to the processor 119, and the base resistor 113 is connected to the output side of the decoder 116 and the base resistor 113 is connected. Reference numeral 113 is connected to the base of an NPN type bipolar transistor 110, and the collector resistance 107 is connected to the collector of the bipolar transistor 10.

  Each bipolar transistor 110 turns on / off each LED of the 7-segment LED by performing a switching operation by turning on / off the base current from the decoder 116.

  A current measuring resistor 121 is connected in series between the emitter of each bipolar transistor 110 and the ground. The current measuring circuit 104 is connected to both ends of the current measuring resistor 121. The current measuring circuit 104 may measure the voltage across the current measuring resistor 121 and convert it into a current value, or may be configured using an operational amplifier, and the current value is input to the processor 119. The processor 119 compares the current value from the current measuring circuit 104 with the current value stored in the table of the RAM 132, for example, and determines whether or not the current value corresponds to the quantity to be displayed by the 7-segment LED 101. (The current flowing through all the emitters of the bipolar transistor is equal to the current flowing through the common terminal of the 7-segment LED 101).

  Although the case where the bipolar transistor is used has been described in the present embodiment, the mode of the present invention is not limited to this, and a CMOS transistor, an NMOSS transistor, or a PMOS transistor may be used. The technical idea according to the present invention is not limited to this embodiment and may be other embodiments. For example, FIG. 8 for a functional block is merely an example and the technical idea of the present invention is not limited thereto, and FIG. 9 for a circuit is only an example and the technical idea of the present invention is not limited thereto. .

  The other decoders 117 and 118, base resistors 114 and 115, bipolar transistors 111 and 112, collector resistors 108 and 109, current measuring resistors 122 and 123, and current measuring circuits 105 and 106 are also the same, so description thereof will be omitted. To do.

<7 segment LED>
10A is an example of an external perspective view of the 7-segment LED shown in FIG. 9, and FIG. 10B is an example of a circuit diagram of the 7-segment LED shown in FIG. 10A.

  The 7-segment LED 101 includes an LED body 101h, lead wires 101p, LEDs 101a, 101b, 101c, 101d, 101e, 101f, 101g. LEDs 101a, 101b, 101c, 101d, 101e, 101f, 101g are arranged on the front surface side of the LED body 101h, and lead wires 101p are arranged on the rear surface side of the LED body 101h. The cathodes of the LEDs 101a, 101b, 101c, 101d, 101e, 101f, 101g are connected and connected to a common terminal (common) 101p, and the cathodes are independently connected to a lead wire 101p.

<Functional block diagram>
FIG. 11 is an example of a functional block diagram of a carrying system with a display device according to an embodiment of the present invention.

  The system shown in FIG. 11 includes a management unit 500, a conveyance unit 501, a warning unit 502, and a display device 503.

  The management unit 500 controls the transport system with the display device, that is, controls the positions of all the display devices 503, whether or not an abnormality has occurred, the emergency stop of the transport unit 501, and the operation of the warning unit 502. It is realized by the personal computer PC10.

  The transport unit 501 corresponds to, for example, a belt conveyor (not shown), and is realized by, for example, the drive circuit 11, the motor 12, and the conveyor belt for the belt conveyor (not shown) shown in FIG. .

  The warning unit 502 gives notification when an abnormality occurs in the system, and is realized by the rotation warning lamp 400 shown in FIG. 8, for example.

  The display device 503 includes a control unit 504, a storage unit 505, a quantity display unit 506, a measurement unit 507, a confirmation instruction unit 508, an abnormality detection unit 509, an error display unit 510, an emergency stop signal generation unit 511, and a quantity display stop unit 512. An emergency drive unit 513, a conversion unit 514, and a determination unit 515 are provided.

  The control unit 504 integrally controls the display device 503, that is, determines whether or not there is an abnormality by comparing the measured current value with respect to the quantity display of the 7-segment LED and the current value stored in the table. It is realized by the CPU 130, the ROM 131, and the RAM 132 shown in FIG.

  The storage unit 505 stores the control program of the display device 503, expands the read control program, and stores the standard value of the current value in the 7-segment LED quantity display, and is shown in FIG. 8, for example. It is realized by the ROM 131 and the RAM 132.

  The quantity display unit 506 indicates the number of pickings, and is realized by, for example, the 7-segment LEDs 101, 102, 103 and the drive circuits 1001, 1002, 1003 shown in FIG.

  The measurement unit 507 measures the voltage across both ends of the resistance unit that is connected in series to the common terminals of the light emitting elements of the 7-segment LEDs 101, 102, and 103 and through which the drive current flows. For example, the current measurement circuit 104 illustrated in FIG. , 105, 105.

  The confirmation instructing unit 508 is input by the operator when the picking operation is completed, and is realized by the switch 133 shown in FIG. 8, for example.

  The abnormality detection unit 509 detects an abnormality of the 7-segment LEDs 101, 102, 103 forming the quantity display unit 506, and is realized by, for example, the ROM 131 and the RAM 132 shown in FIG.

  The error display section 510 displays an error display by the 7-segment LEDs 101, 102, 103 which are the light emitting elements of the quantity display section 506 in which an abnormality is detected, and is realized by, for example, the ROM 131 and the RAM 132 shown in FIG. .

  The emergency stop signal generation unit 511 issues a signal for requesting an emergency stop of the transport unit 501 due to the occurrence of an abnormality to the management unit 500, and is realized by, for example, the CPU 130, the ROM 131, and the RAM 132 illustrated in FIG. 8.

  The quantity display stopping unit 512 stops the quantity display of the display device in which the abnormality has occurred, and is realized by, for example, the CPU 130, the ROM 131, and the RAM 132 shown in FIG.

  The emergency drive unit 513 drives only the light emitting elements necessary for expressing an error display indicating that an abnormality has occurred among the light emitting elements of the 7-segment LEDs 101, 102, 103. For example, the CPU 130 shown in FIG. , ROM 131, and RAM 132.

  The conversion unit 514 converts the voltage value measured by the measurement unit into a current value, and is realized by, for example, the CPU 130, the ROM 131, and the RAM 132 shown in FIG.

  The determination unit 515 determines whether or not the current value converted by the conversion unit 514 and the current value corresponding to the quantity to be displayed by the 7-segment LED are substantially the same value, for example, shown in FIG. It is realized by the CPU 130, the ROM 131, and the RAM 132.

<Flowchart>
12A is a part of an example of a flowchart showing the operation of the display device in the carrying system with a display device shown in FIG. 8, and FIG. 12B is the rest of the flowchart shown in FIG. 12A.

  When the power of the transportation system with a display device is turned on (step S1), the management unit 500 stops the transportation unit 501, and all the display devices 100 have the 7-segment LEDs 101, 102, and 103 for the figure 8 (or the date). It is turned on (step S2). The measured values of the currents of all 7-segment LEDs 101, 102, 103 of all 7-segment LEDs 101, 102, 103 of all display devices 100 when the figure 8 is lit are the current values in the quantity display stored in the data table of RAM 132. When it is determined that the value is substantially equal to the standard value, that is, normal or not (step S3), and an abnormality occurs (step S3 / NO), the display device 100 displays an error and the number of the display device 100 in which the abnormality has occurred ( The location) and the error code are transmitted to the management unit 500, and the management unit 500 turns on the warning light (step S4). The abnormality display device is replaced (step S5), the figure 8 is turned on again (step S3), and if there is no abnormality (step S3 / YES), the transport unit 501 is operated (step S6).

  Each of the display devices 100 displays the measured values of the currents of the 7-segment LEDs 101, 102, 103 corresponding to the quantity when the quantity is displayed according to the quantity display instruction from the management unit 500 and the quantity display stored in the data table of the RAM 132. It is determined that the current value is substantially equal to the standard value, that is, it is normal (step S7). If normal, the process proceeds to step S10 (step S7 / YES), and if an abnormality occurs (step S7 / NO), The display device 100 displays an error and transmits the display device number and the error code to the management unit 500. The management unit 500 makes an emergency stop of the transport unit 501 and turns on the warning unit 502 (step S8).

  Here, the emergency stop means that an alarm is issued and the conveyance unit 501 is suddenly stopped. That is, it is used as a concept different from a normal stop in which an alarm is stopped without issuing an alarm and an emergency stop in which a stop is given the highest priority in a dangerous situation (a person is involved, for example).

  Now, after step S8, the display device in which the abnormality has occurred is replaced (step S9), the transport unit 501 is reactivated, and the figure 8 is lit again on the display device, and if there is no abnormality (step S7 / YES). ), And proceeds to step S10.

  In step S10, it is determined whether or not the work is completed, and if it is not completed, the work is continued (step S10 / NO), and when the work is completed (step S10 / YES), the management unit 500 stops the transport unit 501 (step S10 / YES). Step S11). If there is no abnormality, the power supply is stopped and the process ends (step S15).

  Here, error display in a display device using three 7-segment LEDs will be described.

  13A to 13H are examples of error display by the display device shown in FIG. FIG. 13A is an example showing a case where the error display is “E7” and the leftmost 7-segment LED is off.

  That is, the 7-segment LED 101 is turned off, the 7-segment LED 102 displays "E", and the 7-segment LED 103 displays "7", which results in "□ E7" (□ indicates extinguished).

  FIG. 13B is an example showing a case where the error display is “E7” and the rightmost 7-segment LED is off.

  That is, the 7-segment LED 101 displays "E", the 7-segment LED 102 displays "7", and the 7-segment LED 103 is extinguished, resulting in "E7 □" (□ indicates extinction).

  FIG. 13C is an example showing a case where the error display is “7E” and the leftmost 7-segment LED is off.

  That is, the 7-segment LED 101 is extinguished, the 7-segment LED 102 displays "7", and the 7-segment LED 103 displays "E", which results in "□ 7E" (□ indicates extinction).

  FIG. 13D is an example showing a case where the error display is “7E” and the rightmost 7-segment LED is off.

  That is, the 7-segment LED 101 displays “7”, the 7-segment LED 102 displays “E”, and the 7-segment LED 103 is turned off to become “7E □” (□ indicates extinguished).

  FIG. 13E is an example showing a case where the error display is “E-7”.

  That is, the 7-segment LED 101 displays "E", the 7-segment LED 102 displays "-", and the 7-segment LED 103 displays "7", which results in "E-7".

  FIG. 13F is an example showing a case where the error display is “7-E”.

  That is, the 7-segment LED 101 displays "7", the 7-segment LED 102 displays "-", and the 7-segment LED 103 displays "E" to become "7-E".

  FIG. 13G is an example showing a case where the error display is “−E7”.

  That is, the 7-segment LED 101 displays "-", the 7-segment LED 102 displays "E", and the 7-segment LED 103 displays "7", which results in "-E7".

  FIG. 13H is an example showing a case where the error display is “−7E”.

  That is, the 7-segment LED 101 displays "-", the 7-segment LED 102 displays "7", and the 7-segment LED 103 displays "E", resulting in "-7E".

<Program>
The system with a display device according to the embodiment of the present invention described above is realized by a program that causes a computer to execute processing. As the computer, for example, a general-purpose computer such as a personal computer or a workstation can be mentioned, but the embodiment of the present invention is not limited to this. Therefore, as an example, a case where a program realizes a function according to one embodiment of the present invention will be described below.

For example,
The storage shelves are arranged horizontally in each row of the storage rack that is configured in multiple stages with multiple frontages in the horizontal direction, and inputs a confirmation instruction section that is input when the work operation is completed, a quantity display section that indicates the number of pickings, and a storage shelf. A computer-readable program of a transport system with a display device, comprising: a transport unit, which is disposed to face each other and transports a picked article from a storage shelf to a predetermined location,
On the computer,
A first function for detecting an abnormality of the 7-segment LED that constitutes the quantity display unit,
A second function for displaying an error display by the light emitting element of the quantity display section in which an abnormality is detected,
A third function for issuing a signal for requesting an emergency stop of the transport unit due to an abnormality,
A fourth function of emergency-stopping the transport unit upon receipt of an emergency stop request signal for the transport unit;
A computer readable program for executing

  Such a program may be stored in a computer-readable recording medium.

<Recording medium>
Here, examples of the recording medium include a computer-readable recording medium such as a CD-ROM, a flexible disk (FD), and a CD-R, a semiconductor memory such as a flash memory, a RAM, a ROM, and a FeRAM, and an HDD.

  CD-ROM is an abbreviation for Compact Disc Read Only Memory. Flexible disk means Flexible Disk: FD. CD-R is an abbreviation for CD Recordable. FeRAM is an abbreviation for Ferroelectric RAM and means a ferroelectric memory. HDD is an abbreviation for Hard Disc Drive.

  It should be noted that the above-described embodiment shows an example of the preferred embodiment of the present invention, and the present invention is not limited thereto, and various modifications can be made without departing from the gist thereof. is there.

  The display device, the information system using the display device, the program, and the recording medium according to the embodiment of the present invention can be manufactured industrially and can be a target of a commercial transaction, and thus have an economical value. It is an invention that has and can be industrially used.

2 ... Storage shelf 3 ... Storage box 4, 100, 503 ... Display device 500 ... Management unit 501 ... Transport unit 502 ... Warning unit 504 ... Control unit 505 ... Storage unit 506 ... Quantity display unit 507 ... Current measurement unit 508 ... Confirmation instruction unit 509 ... Abnormality detection unit 510 ... Error display unit

Claims (10)

A display unit that has a plurality of segments and emits light when a segment is energized,
An energization state confirmation unit that confirms the energization state for each of the plurality of segments,
And a control unit that controls the display unit to display an error when the power distribution state confirmation unit detects an abnormality in the power distribution state of any of the plurality of segments. A transport device that is disposed near a storage shelf having a plurality of frontages and transports the target article and / or the target article package.
A management computer that controls or manages the operation of the transport device,
A display unit having a plurality of segments, which is arranged in the vicinity of the transport device and displays picking instruction information or assorting instruction information about the target article and / or the target article package transported by the transport apparatus,
At least a power supply unit for supplying power to the carrier device and supplying power to each of the plurality of segments,
An energization state confirmation unit that confirms an energization state by the power supply unit for each of the plurality of segments,
And a control unit that controls the display unit to display an error when the conduction state confirmation unit operates and the conduction state confirmation unit detects an abnormality in the conduction state of any of the plurality of segments. Information system.   The information system according to claim 2, wherein the control unit is provided in the management computer. The control unit, when the energization state confirmation unit detects an abnormality in the energization state of any of the plurality of segments, further notifies the management computer that the abnormality is detected,
The management computer stops the operation of the transport device when notified that the abnormality is detected from the control unit,
The information system according to claim 2 or 3, characterized in that. Further comprising a rotation warning light operated / controlled by the management computer,
The control unit, when the energization state confirmation unit detects an abnormality in the energization state of any of the plurality of segments, further notifies the management computer that the abnormality is detected,
The management computer operates the rotation warning light when notified that the abnormality has been detected from the control unit.
The information system according to any one of claims 2 to 4, characterized in that: Further comprising a warning sound generator operated / controlled by the management computer,
The control unit, when the energization state confirmation unit detects an abnormality in the energization state of any of the plurality of segments, further notifies the management computer that the abnormality is detected,
When the management computer is notified by the control unit that the abnormality has been detected, the management computer operates the warning sound generation device to generate a warning sound,
The information system according to any one of claims 2 to 5, wherein: A computer readable program used to control an information system, comprising:
Computer,
A management unit that is arranged near a storage shelf having a plurality of frontages and that controls or manages the operation of a carrier device that carries the target article and / or the target article package.
A display unit for displaying picking instruction information or assorting instruction information on the target article and / or the target article package transported by the transport apparatus, to a display section arranged in the vicinity of the transport apparatus and having a plurality of segments. When,
An energization state confirmation unit that confirms the energization state for each of the plurality of segments,
When the energization state confirmation unit operates the energization state confirmation unit and detects an abnormality in the energization state of any of the plurality of segments, the energization state confirmation unit is caused to function as a control unit that controls the display unit to display an error. , A computer-readable program. The control unit, when the energization state confirmation unit detects an abnormality in the energization state for any of the plurality of segments, further conveys that the abnormality is detected to the management unit,
The management unit stops the operation of the transport device when notified that the abnormality has been detected from the control unit,
8. The program according to claim 7, further operating the computer. The transport system includes a rotation warning light and a warning sound generator that are operated / controlled by the management unit.
The control unit, when the energization state confirmation unit detects an abnormality in the energization state for any of the plurality of segments, further conveys that the abnormality is detected to the management unit,
When the management unit is notified by the control unit that the abnormality is detected,
Operating the rotation warning light, or operating the warning sound generation device to generate a warning sound,
9. The program according to claim 7, further causing the computer to operate so as to perform at least one of the above.   A recording medium on which the program according to any one of claims 7 to 9 is recorded.

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