JP4905544B2 - Work management system and work management method - Google Patents

Description

  The present invention relates to a work management system and a work management method for managing work related to articles by wirelessly communicating information with a wireless tag corresponding to one or more articles, and in particular, by each worker. The present invention relates to an improvement for finely grasping or evaluating a pick-up operation.

  2. Description of the Related Art An RFID (Radio Frequency Identification) system is known in which information is read out in a non-contact manner by a predetermined wireless tag communication device (interrogator) from a small wireless tag (responder) in which predetermined information is stored. This RFID system is capable of reading information stored in a wireless tag by communication with the wireless tag communication device even when the wireless tag is dirty or disposed at an invisible position. Therefore, practical use is expected in various fields such as merchandise management and inspection processes.

  As one form of use of such an RFID system, a work management system that manages work by wirelessly communicating information with the wireless tag has been proposed. For example, this is the work management system described in Patent Document 1. According to this technique, a non-contact IC tag is attached to a helmet worn by an operator, and predetermined management data is stored in the non-contact IC tag, so that each worker's behavior can be grasped and work efficiency can be improved. It is said that it can be realized and accurate.

JP 2006-209420 A

  However, the conventional technique reads a non-contact IC tag attached to the helmet at a gate provided for entering and exiting the work area, and grasps the work in and out of the work area. It is a simple system that can be used for a specific process. For example, a process for picking up a part related to the manufacture of a given product (pickup). It could not be evaluated. For this reason, there has been a demand for the development of a work management system and a work management method capable of finely grasping or evaluating the work of each worker in picking up parts.

  The present invention has been made against the background of the above circumstances, and its object is to provide a work management system and a work management method that can grasp and evaluate each worker's work in the picking up work in detail. There is to do.

In order to achieve such an object, the gist of the first invention is that a plurality of types of articles are stored for each type in order to pick up a plurality of types of articles required for manufacturing a predetermined product. In each work area, a wireless tag indicating the type corresponding to the article is placed in each storage position where the same type of article is stored, and the identification information of the wireless tag is read wirelessly , a work management system for managing picked working of the article, as instruction information regarding picked up work of the article, and work instructions for storing identification information of the wireless tag corresponding to the article to be at least picked up object, the working A wireless tag reader that wirelessly reads the identification information of the wireless tag, which is used by being worn or gripped by a person's hand, and a finger stored in the work instruction. A reading device that reads information, and a control device configured to be capable of receiving identification information of the wireless tag read by the wireless tag reader and instruction information read by the reading device, the control device comprising: as the instruction information according to the article pick up tasks that pick up the work from being read by the identification information of the wireless tag corresponding to the article of interest the reader, to identification information of the wireless tag is read by the wireless tag reader The present invention is characterized by comprising working time measuring means for measuring time.

In order to achieve the above object, the gist of the second invention is to pick up a plurality of types of articles necessary for manufacturing a predetermined product, so that the plurality of types of articles are classified for each type. in housed workspace, wireless tag indicating the type corresponding to the article at each storage position in which the same types of articles is accommodated is arranged, by reading the identification information of the wireless tag by the wireless operator wherein a work management method for managing picked work articles by, as instruction information regarding picked up work of the article, and work instructions for storing identification information of the wireless tag corresponding to the article to be at least picked up object, the A wireless tag reader that wirelessly reads the identification information of the wireless tag and is used by being attached to or gripped on the hand of the worker, and a finger stored in the work instruction sheet In a working environment comprising a reading device that reads information, and a control device configured to be able to receive identification information of the wireless tag read by the wireless tag reader and instruction information read by the reading device, the target as the instruction information according to the picking up operations of an article, picked working time from being read by the identification information of the wireless tag corresponding to the article of interest the reader, to identification information of the wireless tag is read by the wireless tag reader It is characterized by including a working time measuring process for measuring.

Thus, according to the first invention, as the instruction information regarding picked up work of the article, and work instructions for storing identification information of the wireless tag corresponding to the article to be at least picked up object, the operator's hand portion A wireless tag reader that wirelessly reads the identification information of the wireless tag, that is used by being attached to or gripped on the wireless communication device, a reader that reads the instruction information stored in the work instruction, and the identification of the wireless tag that is read by the wireless tag reader A control device configured to be able to receive information and instruction information read by the reading device, the control device corresponding to the article to be picked up as instruction information related to the picking up operation of the target article after being read by the identification information of the wireless tag the reader that, the identification information of the wireless tag radio haul Because it is equipped with a work time measuring means that measures the work time until it is read by the reader, the work time for each worker's process can be measured one by one with respect to picking up articles using RFID tag communication. Can do. That is, it is possible to provide a work management system that can grasp and evaluate the work of each worker in the part picking work in detail.

Here, in the first aspect of the invention, preferably, the work area is provided with a plurality of areas for storing a plurality of types of articles in a fixed position , corresponding to each of the plurality of areas. Provided with an area information transmitting device that transmits position information of each area to a predetermined range, and the control device is configured to receive position information transmitted by the area information transmitting device, and Destination area determination means for determining whether or not the position information from the area information transmitting apparatus corresponds to the instruction information during the pick-up work related to the predetermined instruction information read from the work instruction sheet by the reading apparatus. When the determination by the destination area determination means is affirmed, the reading device reads the instruction information relating to the picking up of the target article stored in the work instruction. A second working time measuring means for measuring a working time to be, those with. In this way, each worker's work in picking up the parts can be grasped or evaluated more finely.

  Preferably, the control device picks up the next target article stored in the work instruction after the identification information of the wireless tag corresponding to the target article is read by the wireless tag reader. There is provided a third work time measuring means for measuring the work time until the instruction information is read by the reading device. In this way, each worker's work in picking up the parts can be grasped or evaluated more finely.

  Preferably, the plurality of areas form a plurality of columns, and each area is included in any one of the columns, provided corresponding to each of the plurality of columns, and with respect to a predetermined range. A column information transmitting device for transmitting the position information of each column, and the control device is configured to be able to receive the position information transmitted by the column information transmitting device, and from the work instruction by the reading device. By a target column determining means for determining whether or not the position information from the column information transmitting device corresponds to the instruction information during the pick-up work related to the read predetermined instruction information, and the target column determining means And a fourth work time measuring means for measuring a work time from when the determination is affirmed to when the determination by the destination area determining means is affirmed. In this way, each worker's work in picking up the parts can be grasped or evaluated more finely.

  Preferably, the control device, when picking up the predetermined instruction information read from the work instruction sheet by the reading device, reads the instruction information by the reading device and then selects the target column determining means. There is provided a fifth work time measuring means for measuring the work time until the determination by is affirmed. In this way, each worker's work in picking up the parts can be grasped or evaluated more finely.

  Preferably, the apparatus further includes an end position information transmitting device that is provided corresponding to the work end position and transmits position information of the work end position to a predetermined range, and the control device transmits the end position information. Whether or not all the identification information corresponding to the articles to be picked up according to the instruction information stored in the work instruction sheet has been read by the wireless tag reader, while being configured to be able to receive position information transmitted by the device And a sixth work time measuring means for measuring the work time from when the determination by the work completion determination means is affirmed until the position information from the end position information transmission device is received. Is provided. In this way, each worker's work in picking up the parts can be grasped or evaluated more finely.

  Preferably, the control device compares the work time actually measured by the work time measuring means with a standard value of each work time determined in advance, thereby performing the work instruction radio. Work evaluation means for evaluating work related to the instruction information stored in the tag is provided. If it does in this way, if it does in this way, the operation | work for every process of each worker in the picking-up operation | work of components can be evaluated in a detailed and practical aspect.

In addition, according to the second invention, as the instruction information regarding picked up work of the article, and work instructions for storing identification information of the wireless tag corresponding to the article to be at least picked up object, attached to the hand of the operator Or a wireless tag reader that wirelessly reads the identification information of the wireless tag that is gripped and used, a reading device that reads the instruction information stored in the work instruction, and the identification information of the wireless tag that is read by the wireless tag reader; A wireless tag corresponding to an article to be picked up as instruction information related to picking up the target article in a work environment provided with a control device configured to receive the instruction information read by the reading device from being read by the identification information the reader, the identification information is the wireless tag reader of the wireless tag Since it contains a working time measurement process of measuring the working time until more read can regard picked up work of articles using wireless tag communication and point by point measurement of operation time of each step of each worker. That is, it is possible to provide a work management method that can grasp or evaluate the work of each worker in the part picking work in detail.

Here, in the second aspect of the invention, preferably, the work area is provided with a plurality of areas for fixing a plurality of types of articles in a fixed position, and corresponds to each of the plurality of areas. Provided in a work environment configured to be able to receive position information transmitted by the area information transmitting device. A destination area for determining whether or not the position information from the area information transmission device corresponds to the instruction information in the pick-up work related to the predetermined instruction information read from the work instruction by the reading device Instruction information related to picking up the target article stored in the work instruction after the determination in the determination process and the determination in the destination area determination process are affirmed. A second operation time measurement process of measuring the working time until read by those comprising. In this way, each worker's work in picking up the parts can be grasped or evaluated more finely.

  Preferably, the identification information of the wireless tag corresponding to the target article is read by the wireless tag reader, and the instruction information related to the next target article pick-up operation stored in the work instruction sheet. A third working time measurement process for measuring the working time until reading by the reading device is included. In this way, each worker's work in picking up the parts can be grasped or evaluated more finely.

  Preferably, the plurality of areas form a plurality of columns, and each area is included in any one of the columns, provided corresponding to each of the plurality of columns, and with respect to a predetermined range. A column information transmitting device that transmits the position information of each column, and the control device is configured to receive the work instruction by the reading device in a work environment configured to receive the position information transmitted by the column information transmitting device. A target column determination process for determining whether or not the position information from the column information transmitting device corresponds to the instruction information during the pick-up operation related to the predetermined instruction information read from the document, and the target column determination And a fourth work time measurement process for measuring the work time from when the determination in the process is affirmed until the determination in the destination area determination process is affirmed. In this way, each worker's work in picking up the parts can be grasped or evaluated more finely.

  Preferably, in a pick-up operation related to predetermined instruction information read from the work instruction by the reading device, the determination in the target column determination process is affirmed after the instruction information is read by the reading device. A fifth working time measuring process for measuring the working time until the first time is included. In this way, each worker's work in picking up the parts can be grasped or evaluated more finely.

  Preferably, the apparatus further includes an end position information transmitting device that is provided corresponding to the work end position and transmits position information of the work end position to a predetermined range, and the control device transmits the end position information. In the work environment configured to be able to receive the position information transmitted by the device, all identification information corresponding to the articles to be picked up according to the instruction information stored in the work instruction sheet has been read by the wireless tag reader. A work completion determination process for determining whether or not, and a sixth work time measurement for measuring a work time from when the determination in the work completion determination process is affirmed until the position information is received from the end position information transmission device Process. In this way, each worker's work in picking up the parts can be grasped or evaluated more finely.

  Preferably, the work time actually measured in the work time measurement process is compared with a predetermined standard value of each work time, and stored in the work instruction wireless tag. A work evaluation process for evaluating work related to the instruction information is included. In this way, it is possible to evaluate the work of each worker in the process of picking up parts in a detailed and practical manner.

  In the first and second aspects of the present invention, preferably, the work instruction sheet includes a work instruction wireless tag for storing instruction information related to picking up the article, and the reading device includes: The wireless tag reader. In this way, the configuration of the system can be simplified by enabling the wireless tag reader that reads the identification information to read the instruction information stored in the work instruction sheet.

It is a figure which illustrates the structure of the work management system to which this invention is applied suitably. FIG. 2 is a block diagram schematically showing a configuration related to information communication in the work management system of FIG. 1 and explaining a configuration provided in a carriage that is a movable mounting table. It is a block diagram explaining the structure of the list reader with which the work management system of FIG. 1 was equipped. It is a figure explaining the structure of the wireless tag which is the communication object of the list reader of FIG. FIG. 4 is a perspective view illustrating a state in which the wrist reader of FIG. 3 is used by being attached to a worker's hand in the work management system of FIG. FIG. 4 is a perspective view illustrating a state in which the antenna in the wrist reader of FIG. 3 is used by being attached to the operator's hand in the work management system of FIG. 1. It is a block diagram explaining the structure of tablet PC with which the work management system of FIG. 1 was equipped. It is a figure which shows an example of the data table memorize | stored corresponding to the series of work regarding the picking up operation | work of the components corresponding to a predetermined | prescribed work instruction document in the database with which the work management system of FIG. 1 was equipped. It is a functional block diagram explaining the principal part of the control function with which the control part of the tablet PC of FIG. 7 was equipped. It is process drawing explaining the series of work which concerns on the predetermined | prescribed work instruction document in the work management system of FIG. It is a figure explaining a mode that the work instruction information memorize | stored in the work instruction sheet tag at the time of the start of the pick-up work in the work management system of FIG. 1 is read by the list reader. FIG. 3 is a diagram for explaining a state where a signal from an IR marker corresponding to a column is received by an IR receiver when a cart enters an area corresponding to a predetermined column in the pick-up operation in the task management system of FIG. 1. It is a figure explaining a mode that the signal from the IR marker corresponding to the shelf is received by the IR receiver when the cart enters the region corresponding to the predetermined shelf in the picking work in the work management system of FIG. FIG. 3 is a diagram for explaining a state in which identification information of a component box tag related to a component box is automatically read out by a list reader when a worker's hand approaches a predetermined component box in the pick-up operation in the work management system of FIG. 1. It is. The figure explaining a mode that the signal from the IR marker corresponding to the work end position is received by the IR receiver when the cart enters the area corresponding to the predetermined work end position in the picking up work in the work management system of FIG. It is. It is a figure which shows an example of the evaluation result display screen displayed on a display apparatus based on the 4 step | paragraph evaluation result of the working time of each process actually measured in the pick-up work in the work management system of FIG. It is a flowchart explaining the principal part of the picking-up work management control by the control part of the tablet PC of FIG. It is a figure which shows an example of the tray with which the trolley | bogie used for the work management system of FIG. 1 was equipped.

  Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings.

  FIG. 1 is a diagram illustrating a configuration of a work management system 10 to which the present invention is preferably applied. FIG. 1 schematically shows a state of a parts storage 12 for storing a plurality of types of parts 18 related to a product in a factory for assembling a predetermined product. The work management system 10 of this embodiment is shown in FIG. Thus, the present invention is suitably applied to the management of the work of taking out, that is, picking up (pickup) a plurality of types of parts 18 necessary for manufacturing the target product from the parts storage 12 as a work area. Note that the parts storage 12 does not necessarily store only parts related to one type of product, and a configuration in which parts related to a plurality of types of products are stored together in one place is also possible. The work management system 10 is effective even in such a case.

  As shown in FIG. 1, a plurality of shelves 14 a to 14 i (hereinafter, simply referred to as shelves 14 unless otherwise specified) are fixedly installed in the parts storage 12 as a work area. A plurality of parts boxes 16 are housed in each. The component boxes 16 each store a predetermined type of component (article) 18, and each component box 16 stores a plurality of predetermined types of components 18. Each component box 16 is attached with a component box tag 16t, which is a wireless tag indicating the type of the component 18 stored in the component box 16, and information indicating the type by a list reader 28 described later ( Identification information) can be read. That is, the work management system 10 shown in FIG. 1 picks up the parts 18 in the parts storage 12 where a plurality of kinds of parts 18 are arranged on any of the plurality of shelves 14 corresponding to the divided areas. Management of work. In such a configuration, there is an advantage that the parts 18 of the same type are accommodated correspondingly in the parts boxes 16 and the parts 18 can be replenished in parallel with picking up the parts 18.

  As shown in FIG. 1, the plurality of shelves 14 form a plurality of columns 20 a to 20 c (hereinafter, simply referred to as a column 20 unless otherwise distinguished). It is included. That is, in the configuration shown in FIG. 1, the shelves 14a to 14c are included in the first column 20a, the shelves 14d to 14f are included in the second column 20b, and the shelves 14g to 14i are included in the third column 20c. Here, on the plurality of shelves 14, IR (InfraRed) markers 22, which are infrared transmitters that transmit infrared signals to a predetermined range, are installed corresponding to the respective shelves 14. The IR marker 22 is fixed to, for example, the upper part (top plate) of each shelf 14 and has a predetermined range corresponding to the shelf 14 (for example, a range in which the parts box 16 stored in the shelf 14 can be taken out). It functions as an area information transmitting device that transmits area information that is position information for identifying each shelf 14. Similarly, an IR marker 24 that is an infrared transmitter that transmits an infrared signal to a predetermined range is provided at one end (entrance side end) of each of the plurality of rows 20 at the start point of each row 20. It is installed corresponding to. The IR marker 24 is fixed to, for example, the end side (row end side) of the shelf 14 located at one end of the row 20 among the plurality of shelves 14 included in each row 20, and has a predetermined range (for example, its It functions as a column information transmitting device that transmits column information that is position information for identifying each column 20 to the entrance of the passage on the front side of the shelf 14 included in the column 20. Further, an IR transmitter that similarly transmits an infrared signal to a predetermined range at an end portion (exit side end portion) opposite to the side where the IR marker 24 is provided in the plurality of rows 20. Markers 25 are installed corresponding to the end points of each row 20. The IR marker 25 is fixed to, for example, the end side (the end side of the row) of the shelf 14 located at one end of the row 20 among the plurality of shelves 14 included in each row 20, and a predetermined range (for example, the It functions as an end position information transmitting device that transmits end position information, which is position information of the work end position of each row 20, to the exit of the passage on the front side of the shelf 14 included in the row 20.

  In the work management system 10, the worker 26 attaches or holds the wrist reader 28 to the hand portion 26 w and picks up the target component 18 while moving the cart 30, which is a movable mounting table. As shown in FIG. 1, a plurality of carts 30 are installed in a spare area 32 adjacent to the parts management cabinet 12, which is a work area, and an operator 26 who has entered the spare area 32 by an elevator 34. Then, one of the carts 30 installed in the spare area 32 is pushed to enter the work area 12, pick up a plurality of target parts 18 in the work area 12, and then return to the spare area 32 again. The elevator 34 moves to a region corresponding to another process.

  In addition, when performing work in the work management system 10, each worker 26 is given a work instruction sheet 44 that stores instruction information regarding the picking-up work of the component 18. This work instruction sheet 44 is pasted with an instruction sheet tag 44t, which is a work instruction wireless tag for storing instruction information regarding the work of picking up the part 18 of each worker 26 in the parts storage 12 as the work area. Each worker 26 picks up the component 18 in the component storage 12 while repeatedly reading the instruction information stored in the instruction tag 44t by the list reader 28. In other words, in the work management system 10 of this embodiment, a program that advances the work process according to the number of times the instruction tag 44t of the work instruction 44 is read by the list reader 28 is executed by the tablet PC 36 described later. The work management by the work management system 10 is executed according to the program, that is, the control of the tablet PC 36. The instruction information stored in the instruction tag 44t does not necessarily have to be an instruction relating to the work in the work management system 10 itself (for example, identification information of the component 18 to be picked up). Any information can be used as long as it can specify the instruction. That is, a specific series of instructions relating to the picking up operation of the component 18 is stored in a database 46 or the like to be described later, and the instruction tag tag 44 is a specific instruction corresponding to a predetermined operation stored in the database 46. Instruction information as identification information for specifying a specific instruction may be stored. This embodiment will be described in this embodiment.

  FIG. 2 is a block diagram schematically illustrating a configuration related to information communication in the work management system 10 of the present embodiment and explaining the configuration provided in the cart 30. As shown in FIG. 2, the cart 30 includes a tablet PC 36, an IR receiver 38, a Bluetooth (registered trademark) communication device 40, a wireless LAN communication device 42, and the like. Further, a database 46 for storing various information related to the work management system 10 of the present embodiment is provided, and the information can be read by the wireless LAN communication device 42 via the wireless LAN. Further, the cart 30 is provided with a tray 37 (see FIG. 18) for storing (loading) each component 18 picked up from the component storage 12, and preferably the tray 37. A mold (bottom pattern) in which each component 18 is to be accommodated is illustrated. Hereinafter, each device constituting the work management system 10 of this embodiment will be described in detail with reference to FIGS.

FIG. 3 is a block diagram illustrating the configuration of the list reader 28. As shown in FIG. 3, the wrist reader 28 uses a radio wave of UHF band 950 MHz (ISO / IEC18000-6 Type C or the like) between the wireless tag such as the component box tag 16t or the instruction tag tag 44t. A wireless tag communication device that performs non-contact communication, a transmission unit (transmission circuit) 48 for transmitting a predetermined interrogation wave F _c to a wireless tag that is a communication target, and a question transmitted from the transmission unit 48 A receiving unit (homodyne detection circuit) 50 for processing a response wave F _r returned from the wireless tag according to the wave F _c , and a wireless tag that is a communication target via the transmitting unit 48 and the receiving unit 50 A control unit 52 that controls information communication between the control unit 52, an operation unit 54 connected to the control unit 52, a display unit 56, and a Bluetooth communication unit 58. The control unit 52 includes a CPU, a ROM, a RAM, and the like, and is a so-called microcomputer that performs signal processing according to a program stored in advance in the ROM while using a temporary storage function of the RAM. In other words, in this embodiment, the list reader 28 corresponds to a reading device that reads the instruction information stored in the work instruction sheet 44.

The transmitter 48 generates a reference frequency generator 60 that generates a reference frequency of the main carrier wave of the interrogation wave F _c , a reference frequency generated by the reference frequency generator 60, and a control signal from the controller 52. A PLL (Phase Locked Loop) 62 that sets the frequency of the main carrier based on this, a VCO (Voltage Controlled Oscillator) 64 that controls the frequency of the main carrier according to the control voltage from the PLL 62, and a predetermined controlled by the VCO 64 A transmission signal modulation unit 66 that modulates a main carrier wave of a predetermined frequency based on a predetermined control signal TX-ASK supplied from the control unit 52 and an output signal from the transmission signal modulation unit 66 as a predetermined control signal TX- A transmission signal amplifying unit 68 that amplifies the signal based on the PWR and supplies the amplified signal to the antenna 70, and is output from the transmission signal amplifying unit 68. Shin signal via the transceiver separation unit 76 is transmitted to the wireless tag, which is a communication target as the interrogating wave F _c from the antenna 70. Here, as the transmission / reception separation unit 76, a circulator or a directional coupler is preferably used.

  The receiving unit 50 receives an I-phase signal that is received by the antenna 70 and that is supplied via the transmission / reception separating unit 76 from a wireless tag that is a communication target and converts the received signal into an orthogonal I-phase signal and Q-phase signal. From the conversion unit 72 and the Q-phase signal conversion unit 74, an I-phase signal BPF 78 that extracts only a signal in a predetermined frequency band from the I-phase signal output from the I-phase signal conversion unit 72, and the I-phase signal BPF 78 An I-phase signal amplification unit 80 for amplifying the output I-phase signal, a Q-phase signal BPF 82 for extracting only a signal in a predetermined frequency band from the Q-phase signal output from the Q-phase signal conversion unit 74, and A Q-phase signal amplifier 84 that amplifies the Q-phase signal output from the Q-phase signal BPF 82, and the intensities of the I-phase signal and Q-phase signal output from the I-phase signal BPF 78 and the Q-phase signal BPF 82 And an RSSI (Received Signal Strength Indicator) circuit 86, which is a signal strength detection unit to be output. The signals output from the I-phase signal amplification unit 80, the Q-phase signal amplification unit 84, and the RSSI circuit 86 are described above. Processing is performed in the control unit 52, and predetermined information is read from the signal.

FIG. 4 is a diagram for explaining a configuration common to the wireless tag that is the communication target of the list reader 28, that is, the component box tag 16t and the instruction tag tag 44t. As shown in FIG. 4, the parts box tag 16t and the instruction tag 44t are received by the antenna unit 88 such as a dipole antenna for transmitting and receiving signals to and from the wrist reader 28. And an IC circuit unit 90 for processing the processed signal. The IC circuit unit 90 rectifies the interrogation wave F _c received from the antenna unit 88 from the wrist reader 28 and stores the energy of the interrogation wave F _c rectified by the rectification unit 92. Power supply unit 94, a clock extraction unit 96 that extracts a clock signal from the carrier wave received by the antenna unit 88 and supplies the clock signal to the control unit 102, and a memory that functions as an information storage unit that can store a predetermined information signal Part 98, the modem unit 100 connected to the antenna unit 88 for modulating and demodulating the signal, the component box tag 16t to the instruction sheet via the rectifier unit 92, the clock extracting unit 96, the modem unit 100, and the like. A control unit 102 for controlling the operation of the tag 44t is functionally included. The control unit 102 performs control to store the predetermined information in the memory unit 98 by communicating with the list reader 28, and transmits the interrogation wave F _c received by the antenna unit 88 in the modulation / demodulation unit 100. After modulation based on the information signal stored in the memory unit 98 (that is, the identification information of the component 18 stored in the component box 16 corresponding to the component box tag 16t or the instruction information stored in the instruction tag tag 44t). Thus, basic control such as control of reflecting back from the antenna unit 88 as the response wave F _r is executed.

  FIG. 5 is a perspective view illustrating a state in which the wrist reader 28 is attached to the worker 26 and used in the work management system 10. As shown in FIG. 5, in the work management system 10 of the present embodiment, the wrist reader 28 is used by being attached to or gripped on the hand portion 26w of the worker 26 by an attached band 28b. The hand portion 26w is, for example, the wrist or the vicinity thereof, and is preferably used by being attached to the dominant arm of the worker 26. 5 shows an example in which the wrist reader 28 main body is attached to the hand 26w of the operator 26. For example, as shown in FIG. In a configuration in which the wrist reader 28 can be attached to a part different from the main body (position away from the main body), the antenna 70 may be used by being attached to the hand portion 26w of the operator 26. Further, an antenna 70 as shown in FIG. 6 may be attached to the hands 26w of both hands of the worker 26.

  As described above, the list reader 28 functions as a wireless tag reader that reads identification information or instruction information stored in the memory unit 98 of the component box tag 16t and the instruction tag tag 44t wirelessly. In the work management system 10, it is preferable that the parts box tag 16t to the instruction tag 44t to be communicated automatically enter the communicable range of the list reader 28, and automatically the parts box tag 16t to the instruction tag 44t. The information stored in the memory unit 98 is read out. In order to use the UHF band in the vicinity, it is preferable to limit the transmission intensity of the list reader 28 to a predetermined value or less. In addition, as described above, the wrist reader 28 is provided with the Bluetooth communication unit 58, and the Bluetooth communication device 40 provided in the cart 30 via the Bluetooth communication unit 58 and further to the Bluetooth communication device 40 are provided. Information can be communicated with the connected tablet PC 36. When the identification information of the component box tag 16 t or the instruction information of the instruction tag 44 t is read by the list reader 28, the identification information or instruction information is transmitted via the Bluetooth communication unit 58 or the Bluetooth communication device 40. Supplied to the tablet PC 36.

  FIG. 7 is a diagram illustrating the configuration of the tablet PC 36. As shown in FIG. 7, the tablet PC 36 displays a predetermined image (video) and performs various inputs related to the touch management display 104 for inputting according to a user's contact operation, and the work management system 10. A control unit 106 that executes control, a ROM 108 that is a read-only memory, a RAM 110 that is a read / write memory as needed, a storage unit 112 such as a hard disk, a notification unit 114 that outputs a predetermined notification by voice or the like, A clock (timer) 129 for measuring time is provided.

  As shown in FIG. 7, the touch panel display 104 includes a display device 116 as an image display unit (display) for displaying a predetermined video on the touch panel display 104, a user's finger, an attached pen (not shown), and the like. A touch panel 118 that performs input by touching the touch panel display 104 is provided. In addition, a display control unit 120 that performs display control of an image (video) by the display device 116 and an input control unit 122 that processes input information input from the touch panel 118 are provided. The input control unit 122 executes image display control or information input control using the touch panel display 104 via the display device 116 and the touch panel 118.

  As shown in FIG. 7, the tablet PC 36 is configured to be able to transmit and receive information to and from an external device via various interfaces. That is, it is connected to an IR receiver 38 provided in the carriage 30 via an interface 124, and infrared signals from the IR markers 22, 24, 25 are supplied via the IR receiver 38. Yes. Further, another Bluetooth module such as the Bluetooth communication unit 58 provided in the wrist reader 28 is connected to the Bluetooth communication device 40 provided in the cart 30 via the interface 126. Information can be sent to and received from. In addition, it is connected to the wireless LAN communication device 42 provided in the cart 30 via an interface 128, and information is read from the database 46 to the database 46 via the wireless LAN communication device 42. Can be written. The IR receiver 38, the Bluetooth communication device 40, and the wireless LAN communication device 42 may be built in the tablet PC 36.

  The control unit 106 is a so-called microcomputer that performs various types of information processing by a CPU that is a central processing unit based on information stored in the ROM 108 while using a temporary storage function of the RAM 110. An image display control for displaying a predetermined image on the touch panel display 104 (display device 116) via the unit 120 and a touch operation on the touch panel display 104 (touch panel 118) are input via the input control unit 122. Input processing control for processing input signals, communication control with other devices via the IR receiver 38, Bluetooth communication device 40, wireless LAN communication device 42, etc., and work management control to be described later, etc. Various controls related to the work management system 10 of the embodiment are executed. This control will be described later with reference to FIG.

  FIG. 8 is a diagram showing an example of the data table 130 stored in the database 46 in correspondence with a series of work related to the work of picking up the parts 18 according to the predetermined work instruction sheet 44. As shown in FIG. 8, the database 46 includes a display device of the tablet PC 36 corresponding to the instruction information stored in each work instruction 44, that is, the instruction tag 44t provided in the work management system 10. Various kinds of specific information related to the work including a message to be displayed in 40 are stored using a pointer R indicating the work process as an index. That is, in the data table 130 shown in FIG. 8, corresponding to each of the pointers R = 0 to 23, the target ID that triggers the processing, that is, the wireless tag ID (identification information of the component box tag 16t or instruction information of the instruction tag tag 44t). ) Or IR marker ID (position information from the IR markers 22, 24, or 25), a part box number P from which the part 18 is to be taken out, the number N of parts 18 to be taken out, and the taken out part 18 are stored. The position number L of the power component tray 37, the message M to be displayed on the display device 40 of the tablet PC 36 during processing, and the standard work time T1 of the work related to each pointer R are stored. Here, the pointer R starts from 0 which is an initial value, counts up to 23, and then returns to 0 again. Further, the execution work time (actually measured value) related to the work actually performed by the worker 26 in the work management system 10 is sequentially stored corresponding to each of the pointers R = 0 to 23. In addition, the standard work time T1 of the work is preferably an average of actually measured values of work time of each process measured for work by a plurality of workers 26 working in the work management system 10 (parts storage 12). More preferably, the value is updated each time a work by a predetermined worker 26 is performed in the work management system 10 and the work time related to the work is measured. Note that the data table 130 shown in FIG. 8 is not necessarily stored in the database 46, and may be stored in the storage unit 112 of the tablet PC 36 or the like.

  FIG. 9 is a functional block diagram illustrating a main part of the control function provided in the control unit 106 of the tablet PC 36. FIG. 10 is a process diagram for explaining a series of work related to a predetermined work instruction 44 in the work management system 10. Hereinafter, with reference to these FIG. 9 and FIG. 10, the control concerning the work management system 10 of a present Example is demonstrated in detail.

  9 determines whether or not the instruction information stored in the instruction tag 44t attached to the predetermined work instruction 44 has been read by the list reader 28. That is, the instruction information stored in the instruction tag 44t of the work instruction 44 is read by the list reader 28, and it is determined whether or not the instruction information is supplied via the Bluetooth communication device 40 or the like. Preferably, it is determined whether or not the instruction information read in such a manner corresponds to the data table 130 stored in the database 46.

  As shown in FIG. 10, in the work related to the predetermined work instruction sheet 44 in the work management system 10, first, the instruction information stored in the instruction sheet tag 44t attached to the work instruction sheet 44 is received by the list reader 28. The read instruction information is transmitted to the tablet PC 36 via the Bluetooth communication device 40 or the like. FIG. 11 shows how the list information is read by the list reader 28 in such a way that the instruction information stored in the instruction tag 44t accompanying the work instruction 44 is stored. In response to the reading of the instruction tag 44t by the list reader 28 or the transmission of the read instruction information to the tablet PC 36, the instruction reading determination unit 132 performs the determination. If the determination by the instruction sheet reading determination means 132 is affirmed, it is confirmed that the instruction information (work instruction sheet tag ID) of the instruction sheet tag 44t has been read as shown in the data table 130 of FIG. A process related to the pointer R = 0 is executed as a trigger, and an image including a message such as “Please leave the carriage” is displayed on the display device 116 via the display control unit 120.

  9 performs position information (column information) from the IR marker 24 as a column information transmission device during a pick-up operation related to the instruction information read from the instruction tag 44t of the work instruction document 44. ) Corresponds to the instruction information. That is, when an infrared signal as column information is received from the IR marker 24 via the IR receiver 38 or the like, the column tag is an operation that the column information is currently performing, that is, the instruction tag of the operation instruction 44 Based on the stored contents of the data table 130 or the like, it is determined whether or not the column information is determined as column information corresponding to the column 20 to be entered in the pick-up work related to the instruction information read from 44t.

As described above, after the instruction information stored in the instruction tag 44t attached to the work instruction 44 is read by the list reader 28, as shown in FIG. Is detected, and the infrared signal is transmitted to the tablet PC 36 via the IR receiver 38 and the like. FIG. 12 shows how the IR receiver 38 receives an infrared signal (column information) from the IR marker 24 as a column information transmission device. In accordance with reception of infrared signals from the IR marker 24 by the IR receiver 38 or transmission of the received column information to the tablet PC 36, the determination by the target column determination means 134 is performed. If the determination by the target column determining means 134 is affirmed, as shown in the data table 130 of FIG. 8, it is confirmed that the column information (ID _{1 of the} column infrared marker) is received from the IR marker 24. A process related to the pointer R = 1 is executed as a trigger, and an image including a message such as “Please follow the path in this row” is displayed on the display device 116 via the display control unit 120.

  The work time A measuring means 136 shown in FIG. 9 is determined by the instruction reading reading determining means 132 during the pick-up work related to predetermined instruction information read from the instruction tag 44t of the work instruction 44 by the list reader 28. The working time A from when the determination is made until the determination by the target column determination means 134 is affirmed is measured. In other words, when the work is started, the list reader 28 reads the instruction information (ID of the instruction sheet tag 44t) stored in the instruction sheet tag 44t of the work instruction sheet 44, and the above-described instruction information related to the instruction information. The time 2 when the determination by the target column determination means 134 is affirmed is measured by the clock 129, and the working time A is measured by calculating the difference. That is, in the present embodiment, the work time A measuring means 136 corresponds to the fifth work time measuring means. The work time A measured by the work time A measuring means 136 in this way is stored every time measurement is performed in the data table 130 as shown in FIG. The same applies to the working time measuring means described in the following embodiments.

  The destination area determination means 138 shown in FIG. 9 receives from the IR marker 22 which is an area information transmission device when picking up the instruction information read from the instruction tag 44t of the work instruction sheet 44 by the list reader 28. It is determined whether or not the position information, that is, the position information (zone information) relating to each shelf 14 corresponds to the instruction information. That is, when an infrared signal as area information is received from the IR marker 22 via the IR receiver 38 or the like, the work that the area information is currently performing, that is, the instruction tag of the work instruction 44 Based on the stored contents of the data table 130, etc., whether or not the information is determined as area information corresponding to the shelf 14 from which the single or plural parts 18 are to be picked up in the picking work related to the instruction information read from 44t. Judgment.

As described above, after the column information from the IR marker 24 as the column information transmitting device is detected, as shown in FIG. 10, the infrared rays from the IR marker 22 as the area information transmitting device are detected, and the infrared rays are detected. A signal is transmitted to the tablet PC 36 via the IR receiver 38 or the like. FIG. 13 shows how the IR receiver 38 receives the infrared signal (column information) from the IR marker 22 as the area information transmission device. In accordance with the reception of the infrared signal from the IR marker 22 by the IR receiver 38 or the transmission of the received area information to the tablet PC 36, the determination by the destination area determination means 138 is performed. If the determination by the destination area determination means 138 is affirmed, the area information (ID _{2 of the} infrared marker for parts shelf) is received from the IR marker 22, as shown in the data table 130 of FIG. As a trigger, the processing related to the pointer R = 2 is executed, and an image including a message such as “Please stop and fix the carriage” is displayed on the display device 116 via the display control unit 120. If the above determination is denied even though a predetermined infrared signal is received, a message such as “The column is wrong” is displayed on the display device 116 because it is located in the wrong column 20. .

  The work time B measuring means 140 shown in FIG. 9 measures the work time B from the time when the determination by the destination column determination means 134 is affirmed to the time when the determination by the destination area determination means 138 is affirmed using the clock 129. To do. In other words, after the determination by the target column determination unit 134 regarding the instruction information stored in the instruction tag 44t of the work instruction 44 read by the list reader 28 is affirmed, the column 20 related to the determination The working time B until the determination by the destination area determination means 138 corresponding to the shelf 14 included in the table 14 is affirmed is measured. That is, in this embodiment, the work time B measuring means 140 corresponds to the fourth work time measuring means. If the above determination is denied even though a predetermined infrared signal has been received, a message such as “The shelf is wrong” is displayed on the display device 116 because it is located in front of the wrong shelf 14. Is done.

  After the area information from the IR marker 22 as the area information transmitting device is detected as described above, the instruction information stored in the instruction tag 44t attached to the work instruction 44 is shown in FIG. It is read again by the list reader 28. In response to the reading of the instruction tag 44t by the list reader 28 or the transmission of the read instruction information to the tablet PC 36, the instruction reading determination unit 132 performs the determination. If the determination by the instruction sheet reading determination means 132 is affirmed, it is confirmed that the instruction information (work instruction sheet tag ID) of the instruction sheet tag 44t has been read as shown in the data table 130 of FIG. A process related to the pointer R = 3 is executed as a trigger, and an image including a message such as “Please take N pieces from the parts box P” is displayed on the display device 116 via the display control unit 120.

  The work time C measuring means 142 shown in FIG. 9 indicates an instruction relating to the picking up work of the target component 18 stored in the instruction tag 44t of the work instruction 44 after the determination by the destination area determining means 138 is affirmed. The working time C until the information is read by the list reader 28 is measured. In other words, after the determination by the destination area determination means 138 regarding the instruction information stored in the instruction tag 44t of the work instruction 44 read by the list reader 28 is affirmed, the instruction information related to the determination The work time C until the determination by the instruction reading determination unit 132 corresponding to is affirmed is measured. That is, in this embodiment, the work time C measuring means 142 corresponds to the second work time measuring means.

  The target component determination unit 144 shown in FIG. 9 corresponds to the component 18 that is the target related to the instruction information when picking up the instruction information read from the instruction tag 44t of the work instruction 44 by the list reader 28. It is determined whether or not the identification information of the component box tag 16t to be read has been read by the list reader 28. That is, when the identification information of the component box tag 16t read by the list reader 28 is received via the Bluetooth communication device 40 or the like, the work that the identification information is currently performing, that is, the work instruction Whether or not it is determined as identification information of the component box 16 (component box tag 16t) corresponding to the component 18 to be picked up in the picking up work related to the instruction information read from the instruction tag 44t of the book 44 The determination is made based on the stored contents of the data table 130.

After the instruction information stored in the instruction tag 44t attached to the work instruction 44 as described above is read by the list reader 28, as shown in FIG. The list information is read by the list reader 28. FIG. 14 shows how the identification information of the component box tag 16t related to the predetermined component box 16 is read by the list reader 28 as described above. In response to the reading of the component box tag 16t by the list reader 28 or the transmission of the read identification information to the tablet PC 36, the determination by the target component determination means 144 is performed. If the determination by the target component determination means 144 is affirmed, the identification information (component box ID ₃ ) of the target component box tag 16t has been read as shown in the data table 130 of FIG. Is used as a trigger to execute processing related to the pointer R = 4. For example, when the picked-up component 18 corresponds to the position number L in the tray 37 shown in FIG. An image including a message such as “Please enter tray No. L” is displayed on the display device 116.

  The work time D measuring means 146 shown in FIG. 9 reads the instruction information related to the picking up operation of the target part 18 stored in the instruction tag 44t of the work instruction 44 after the list reader 28 reads the instruction information. The working time D until the identification information of the component box tag 16t corresponding to the target component 18 related to the instruction information is read by the list reader 28 is measured. In other words, the work time D from when the determination by the instruction reading determination unit 132 is affirmed to when the determination by the target part determination unit 144 corresponding to the instruction information related to the determination is affirmed is measured. That is, in this embodiment, the work time D measuring means 146 corresponds to the work time measuring means.

  As described above, after the identification information stored in the component box tag 16t of the predetermined component box 16 is read by the list reader 28, as shown in FIG. 10, the instruction tag 44t attached to the work instruction 44 The instruction information stored in is read again by the list reader 28. In response to the reading of the instruction tag 44t by the list reader 28 or the transmission of the read instruction information to the tablet PC 36, the instruction reading determination unit 132 performs the determination. If the determination by the instruction sheet reading determination means 132 is affirmed, it is confirmed that the instruction information (work instruction sheet tag ID) of the instruction sheet tag 44t has been read as shown in the data table 130 of FIG. A process related to the pointer R = 5 is executed as a trigger, and an image including a message such as “Please take N pieces from the parts box P” is displayed on the display device 116 via the display control unit 120.

  The work time E measuring means 148 shown in FIG. 9 stores the identification information of the component box tag 16t corresponding to the target component 18 in the instruction tag 44t of the work instruction 44 after the list reader 28 reads the identification information. The working time E until the instruction information relating to the picking up operation of the next target component 18 is read by the list reader 28 is measured. In other words, after the determination by the target component determination unit 144 corresponding to the instruction information stored in the instruction tag 44t of the work instruction 44 read by the list reader 28 is affirmed, the instruction information The work time E until the determination by the instruction reading determination unit 132 is affirmed is measured. That is, in this embodiment, the work time E measuring means 148 corresponds to the third work time measuring means.

  Hereinafter, as shown in FIG. 10, the instruction information of the instruction tag 44t of the work instruction 44 is read by the list reader 28 (determination by the instruction reading determination unit 132), and the component 18 corresponding to the instruction information is picked up. The reading of the component box tag 16t by the list reader 28 (determination by the target component determination unit 144) or reading of the instruction information of the instruction tag 44t of the work instruction 44 by the list reader 28 relating to the next work. (Determination by instruction reading determination unit 132) is repeated. Then, with respect to the reading of the instruction tag 44t and the parts box tag 16t, the work times D1 to n are measured by the work time D measuring means 146 and the work times E1 to n are measured by the work time E measuring means 148. .

  Further, as indicated by pointers R = 11 to 13 in the data table 130 of FIG. 8, it is determined that the parts 18 corresponding to the parts boxes 16 stored in the other columns 20 to 14 are picked up. When the work is performed according to the above, the instruction reading determination unit 132, the target column determination unit 134, and the destination area determination unit 138 perform determination with the movement of the carriage 30, and the determination corresponds to the determination. The work time B is measured by the work time B measuring means 140 and the work time C is measured by the work time C measuring means.

  The work completion determination unit 150 shown in FIG. 9 includes all the identification information corresponding to the part 18 (part box 16) to be picked up according to the instruction information stored in the instruction tag 44t of the work instruction 44. It is determined whether or not it has been read by the reader 28. For example, when the identification information of the component box tag 16t read by the list reader 28 is received via the Bluetooth communication device 40 or the like, the work that the identification information is currently performed, that is, the work instruction The identification information of the component box 16 (component box tag 16t) corresponding to the component 18 to be picked up in the pick-up work related to the instruction information read from the instruction tag 44t of the book 44, and related to the last component 18 Whether it is determined or not is determined based on the stored contents of the data table 130 or the like. In the present embodiment, as shown in FIG. 8, since the parts 18 to be picked up for each pick-up work are defined in the data table 130, the work completion determination means 150 is based on the pointer R indicating the work process. The above determination may be made. That is, the determination may be affirmed when the pointer R reaches a predetermined value.

  The work end position determining means 152 shown in FIG. 9 performs end position information via the IR receiver 38 or the like when picking up the instruction information read from the instruction tag 44t of the work instruction sheet 44 by the list reader 28. It is determined whether or not the position information from the IR marker 25 which is a transmitting device, that is, the position information of the work end position is received. That is, when an infrared signal as position information is received from the IR marker 25, the position information is changed to the instruction information read from the instruction tag 44t of the work instruction 44, that is, the work instruction sheet 44 at that time. It is determined based on the stored contents of the data table 130 whether or not the information is determined as position information corresponding to the work end position in the pick-up work.

  As shown in FIG. 10, after the instruction information stored in the instruction tag 44t attached to the work instruction 44 is read by the list reader 28, all the parts 18 are picked up by reading the instruction information. If it is determined that there is, the departure of the cart 30 is notified. That is, the determination by the work completion determination means 150 is performed, and the determination is affirmed. If the determination by the work completion determination unit 150 is affirmed, the pointer is triggered by the reception of the instruction information (work instruction sheet tag ID) of the instruction sheet tag 44t as shown in the data table 130 of FIG. The process related to R = 22 is executed, and an image including a message such as “Unlock the carriage and leave” is displayed on the display device 116 via the display control unit 120.

Subsequently, infrared rays from the IR marker 25 as an end position information transmission device are detected, and the infrared signals are transmitted to the tablet PC 36 via the IR receiver 38 and the like. FIG. 15 shows how the IR receiver 38 receives the infrared signal (position information) from the IR marker 25 as the end position information transmission device. In accordance with the reception of the infrared signal from the IR marker 25 by the IR receiver 38 or the transmission of the received position information to the tablet PC 36, the determination by the work end position determination means 152 is performed. If the determination by the work end position determination means 152 is affirmed, position information (ID _{4 of the} work end infrared marker) is received from the IR marker 25 as shown in the data table 130 of FIG. With this as a trigger, processing related to the pointer R = 23 is executed, and an evaluation result display screen 158 as shown in FIG. 16 described later is displayed on the display device 116 via the display control unit 120.

  The work time F measuring means 154 shown in FIG. 9 includes all identification information corresponding to the parts 18 (part boxes 16) to be picked up according to the instruction information stored in the instruction tag 44t of the work instruction 44. The work time F from the time when it is read by the list reader 28 until the position information from the IR marker 25 which is the end position information transmitting device, that is, the position information of the work end position, is measured. In other words, the work time F from when the determination by the work completion determination means 150 is affirmed until the determination by the work end position determination means 152 is affirmed is measured. That is, in this embodiment, the work time F measuring means 154 corresponds to a sixth work time measuring means.

  The work evaluation means 156 shown in FIG. 9 includes the work time A measurement means 136, the work time B measurement means 140, the work time C measurement means 142, the work time D measurement means 146, the work time E measurement means 148, and the work time F. The working times A to F actually measured by the measuring means 154, that is, the measured values T2 of the working times A to F stored in the data table 130, and the standard of each working time set in the data table 130 in advance. By comparing the value T1, the work related to the instruction information stored in the instruction tag 44t of the work instruction 44 is evaluated. For example, according to the difference between the measured value T2 of each work time A to F stored in the data table 130 and the standard value T1 of each work time, each of the work times A to F at the measured value T2 has a plurality of stages. (For example, excellent, good, good, good and bad), and the result is preferably displayed on the display device 116 via the display control unit 120. FIG. 16 is a diagram showing an example of the evaluation result display screen 158 displayed on the display device 116 based on the four-stage evaluation results of the respective work times A to F performed by the work evaluation unit 156 as described above. It is.

  Various forms of work time evaluation by the work evaluation means 156 can be considered. That is, based on the measured values T2 of the work times A to F related to the work of the plurality of workers 26 stored in the database 46, the work times A to F related to the work of the target worker 26. The deviation value of the actual measurement value T2 may be calculated. Alternatively, whether the measured value T2 of each of the work times A to F relating to the work of the worker 26 that is simply the target is higher or lower than the standard value T1 of each of the work times A to F (whether it is fast or slow). It is also possible to determine only. Further, the evaluation result by the work evaluation means 156 does not necessarily have to be displayed on the display device 116 of the tablet PC 36, but is printed out by a printer (not shown) and distributed to each worker 26, or for work evaluation. However, it may be limited to being viewable by an administrator as internal material.

  FIG. 17 is a flowchart for explaining a main part of the pick-up work management control by the control unit 106 of the tablet PC 36, which is repeatedly executed at a predetermined cycle.

  First, in step (hereinafter, step is omitted) S1, a pointer R indicating a work process is set to zero. Next, in S2, it is determined whether or not a predetermined ID is detected. If the determination at S2 is negative, the determination is repeated to wait. If the determination at S2 is affirmative, whether or not the detected ID is a target ID at S2 ′. Is judged. That is, whether instruction information of the instruction tag 44t is detected via the list reader 28, or whether infrared signals (position information) from the IR markers 22, 24, 25 are detected via the IR receiver 38, Alternatively, it is determined whether or not the identification information of the component box tag 16t has been detected via the list reader 28. If the determination in S2 ′ is negative, an error notification that the wrong ID has been read is displayed on the display device 116 in S2 ″. If the determination in S2 ′ is affirmative, in S3, an image including a message stored in the data table 130 of the database 46 is displayed on the display device 116 using the detected target ID as a trigger. In S4, the timer for measuring the work time is turned on, and in S5, the pointer R indicating the work process is advanced by 1. Next, in S6, it is determined whether or not a predetermined ID is detected. If the determination in S6 is negative, the determination is repeated to wait, but if the determination in S6 is affirmative, in S6 ' It is determined whether the issued ID is a target ID, that is, whether the instruction information of the instruction tag 44t has been detected via the list reader 28, or the IR marker 22 via the IR receiver 38. 24, 25, or whether or not the identification information of the component box tag 16t is detected via the list reader 28. This determination of S6 'is made. If not, in S6 ″, an error notification indicating that the wrong ID has been read is displayed on the display device 116, and then the processing from S6 is executed again, but the determination in S6 ′ is affirmative. If so, in S7, the timer for measuring the working time is turned off. Next, in S8, the work time measured by the timer is stored in the data table 130 of the database 46. Next, in S9, the timer for measuring the working time is reset. Next, in S10, an image including a message stored in the data table 130 of the database 46 is displayed on the display device 116 using the detected target ID as a trigger. Next, in S11, a timer for measuring the working time is turned on. Next, in S12, it is determined whether or not the pointer R indicating the work process is zero. If the determination in S12 is negative, the processing from S5 onward is executed again. However, if the determination in S12 is positive, the timer for measuring the working time is turned off in S13. Next, in S14 corresponding to the operation or work evaluation process of the work evaluation means 156, the measured value T2 of each work time A to F stored in the data table 130 is compared with the standard value T1 of each work time. After the comparison result is displayed on the display device 116, this routine is terminated.

  In the above control, S1 and S6 are the operations of the instruction reading determination unit 132, the target column determination unit 134, the target area determination unit 138, the target part determination unit 144, the work completion determination unit 150, and the work end position determination unit 152. Corresponds to a destination column determination process, a destination area determination process, and a work completion determination process. S4, S7, S11, and S13 are the working time A measuring means 136, working time B measuring means 140, working time C measuring means 142, working time D measuring means 146, working time E measuring means 148, and working time. This corresponds to the operation of the F measurement means 154 to the first to sixth work time measurement processes.

  As described above, according to the present embodiment, the work instruction instruction tag 44t for storing the instruction information related to the picking up operation of the article, that is, the part 18, and the hand 26w of the worker 26 are used. The list reader 28 as a wireless tag reader that wirelessly reads the identification information of the component box tag 16t and the instruction information of the instruction tag 44t, and the identification information of the component box tag 16t read by the list reader 28 and the instruction of the instruction tag 44t A tablet PC 36 as a control device configured to be capable of receiving information, and the tablet PC 36 receives the instruction information related to picking up the target component 18 after the list reader 28 reads the instruction information. The identification information of the component box tag 16t corresponding to the target component 18 related to the Since it is provided with work time D measuring means (S4, S7, S11, and S13) for measuring the work time D until it is read by the reader 28, The working time for each process of the worker 26 can be measured one by one. That is, it is possible to provide the work management system 10 capable of finely grasping or evaluating the work of each worker 26 in picking up the parts 18.

  The tablet PC 36 is provided corresponding to each of the plurality of areas, that is, the plurality of shelves 14, and includes an IR marker 22 as an area information transmission device that transmits position information of each area with respect to a predetermined range. The position information transmitted by the IR marker 22 is configured to be received, and the IR marker is used for picking up the predetermined instruction information read from the work instruction instruction tag 44t by the list reader 28. 22 for determining whether or not the position information corresponding to the instruction information corresponds to the instruction information, and after the determination by the destination area determination means 138 is affirmed, The instruction information related to picking up the target component 18 stored in the instruction tag 44t is sent by the list reader 28. Since the working time C measuring means 142 (S4, S7, S11, and S13) as the second working time measuring means for measuring the working time C until being picked up is provided, the part 18 is picked up. The work of each worker 26 in the work can be grasped or evaluated more finely.

  Further, the tablet PC 36 has the next target stored in the work instruction tag 44t after the identification information of the component box tag 16t corresponding to the target component 18 is read by the list reader 28. Working time E measuring means 148 (S4, S7, S11, and S13) as third working time measuring means for measuring the working time E until the instruction information related to the picking up operation of the component 18 is read by the list reader 28. ), The work of each worker 26 in the work of picking up the component 18 can be grasped or evaluated more finely.

  Further, the plurality of shelves 14 form a plurality of columns 20, and each shelf 14 is included in any one of the columns 20, and is provided corresponding to each of the plurality of columns 20, and is within a predetermined range. The tablet PC 36 is provided with an IR marker 24 as a column information transmitting device for transmitting the position information of each column 20 to the list reader. The purpose of determining whether or not the position information from the IR marker 24 corresponds to the instruction information at the time of picking up the predetermined instruction information read from the instruction tag 44t for work instructions by 28. After the determination by the column determination unit 134 (S2 and S6) and the destination column determination unit 134 is affirmed, the determination by the destination area determination unit 38 is affirmed. The work time B measuring means 140 (S4, S7, S11, and S13) as the fourth work time measuring means for measuring the work time B is provided, so that each work in picking up the component 18 is performed. The work of the person 26 can be grasped or evaluated more finely.

  Further, the tablet PC 36, when picking up the predetermined instruction information read from the work instruction instruction tag 44t by the list reader 28, reads the instruction information by the list reader 28, and then performs the purpose. Since the working time A measuring means 136 (S4, S7, S11, and S13) is provided as the fifth working time measuring means for measuring the working time A until the determination by the column determining means 134 is affirmed. The work of each worker 26 in the work of picking up the parts 18 can be grasped or evaluated more finely.

  The tablet PC 36 includes an IR marker 25 provided as an end position information transmitting device that is provided corresponding to the work end position and transmits position information of the work end position to a predetermined range. The position information transmitted by the control unit is configured to be receivable, and all the identification information corresponding to the parts 18 to be picked up according to the instruction information stored in the operation instruction tag 44t is stored in the list reader 28. The work completion determination means 150 (S2 and S6) for determining whether or not the information has been read and the work time from when the determination by the work completion determination means 150 is affirmed until the position information from the IR marker 25 is received. Working time F measuring means 154 (S4, S7, S11, and S13) as sixth working time measuring means for measuring F is provided. For those, the work of each worker 26 in the pick working part 18 can be further finely grasped to evaluate.

  The tablet PC 36 includes the working time A measuring means 136, the working time B measuring means 140, the working time C measuring means 142, the working time D measuring means 146, the working time E measuring means 148, and the working time F measuring means 154. By comparing the actually measured work times A to F with the standard value of each work time determined in advance, the work related to the instruction information stored in the work instruction instruction tag 44t is performed. Since the work evaluation means 156 (S14) for evaluation is provided, the work of each worker 26 in the work of picking up the parts 18 can be evaluated in a detailed and practical manner.

  Further, according to the present embodiment, the instruction tag 44 t for work instructions for storing instruction information relating to the picking up work of the parts 18 and the parts used by being attached to or gripped on the hand part 26 w of the worker 26 are used wirelessly. The list reader 28 that reads the identification information of the box tag 16t and the instruction information of the instruction tag 44t, and the identification information of the component box tag 16t and the instruction information of the instruction tag 44t that are read by the list reader 28 can be received. The component corresponding to the target component 18 related to the instruction information after the instruction information related to the picking-up operation of the target component 18 is read by the list reader 28 in the work environment equipped with the tablet PC 36. Work for measuring work time D until the identification information of the box tag 16t is read by the list reader 28 During the measurement process (S4, S7, S11, and S13) because they contain the can with respect to pick up the work of articles using wireless tag communication and point by point measurement of operation time of each step of each worker 26. That is, it is possible to provide a work management method that can precisely grasp or evaluate the work of each worker 26 in the work of picking up the parts 18.

  Each of the plurality of shelves 14 includes an IR marker 22 that transmits position information of each shelf 14 to a predetermined range, and the tablet PC 36 is a position transmitted by the IR marker 22. In a work environment configured to be able to receive information, the position information from the IR marker 22 is displayed when the list reader 28 picks up the predetermined instruction information read from the instruction tag 44t for work instructions. The destination area determination process (S2 and S6) for determining whether or not it corresponds to the instruction information, and the determination in the destination area determination process is affirmed, and stored in the work instruction instruction tag 44t. A measuring time C until the instruction information related to the picking up operation of the target component 18 is read by the list reader 28 is measured. Working time measurement process (S4, S7, S11, and S13) and, because it is intended to include the work of each worker 26 in the pick working part 18 can be further finely grasped to evaluate.

  Further, after the identification information of the component box tag 16t corresponding to the target component 18 is read by the list reader 28, the next target component 18 stored in the work instruction tag 44t is picked up. Since the third work time measurement process (S4, S7, S11, and S13) for measuring the work time E until the instruction information related to the work is read by the list reader 28 is included, The work of the worker 26 can be grasped or evaluated more finely.

  Further, the plurality of shelves 14 form a plurality of columns 20, and each shelf 14 is included in any one of the columns 20, and is provided corresponding to each of the plurality of columns 20, and is within a predetermined range. On the other hand, the tablet PC 36 includes an IR marker 24 that transmits position information of each column 20, and the tablet PC 36 is configured to receive the position information transmitted by the IR marker 24. A target column determination process for determining whether or not the position information from the IR marker 24 corresponds to the instruction information at the time of picking up the predetermined instruction information read from the instruction tag 44t for instruction ( S2 and S6) and the work time B from when the determination in the destination column determination process is affirmed until the determination in the destination area determination process is affirmed 4 of working time measurement process (S4, S7, S11, and S13) and, because it is intended to include the work of each worker 26 in the pick working part 18 can be further finely grasped to evaluate.

  Further, when the list reader 28 picks up the predetermined instruction information read from the work instruction instruction tag 44t by the list reader 28, the instruction information is read by the list reader 28, and the determination in the target column determination process. Is included in the fifth work time measurement process (S4, S7, S11, and S13) for measuring the work time A until the affirmative is affirmed, and therefore the work of each worker 26 in the work of picking up the parts 18 is further detailed. It is possible to grasp or evaluate.

  The tablet PC 36 is provided corresponding to the work end position and transmits position information of the work end position to a predetermined range, and the tablet PC 36 receives the position information transmitted by the IR marker 25. Whether or not all the identification information corresponding to the parts 18 to be picked up according to the instruction information stored in the instruction tag 44t for work instructions has been read by the list reader 28 in the work environment configured to be receivable A work completion determination process (S2 and S6) for determining whether or not, and a work time F from when the determination in the work completion determination process is affirmed until the positional information from the IR marker 25 is received is measured. Since the work time measurement process (S4, S7, S11, and S13) is included, each worker 26 in picking up the parts 18 Work can be further fine-tuned to grasp or evaluation.

  Further, by comparing the work times A to F actually measured in the work time measurement process with the standard values of the respective work times set in advance, the work instructions are stored in the instruction tag 44t for work instructions. Since the work evaluation process (S14) for evaluating the work related to the instruction information is included, the work for each process of each worker 26 in the work of picking up the parts 18 can be evaluated in a detailed and practical manner.

  The preferred embodiments of the present invention have been described in detail with reference to the drawings. However, the present invention is not limited to these embodiments, and may be implemented in other modes.

  For example, in the above-described embodiment, the area information transmission device, the column information transmission device, and the end position information transmission device are the IR markers 22, 24, and 25 that transmit position information as an infrared signal. However, the present invention is not limited to this. For example, position information such as a Bluetooth signal or a radio wave having a predetermined frequency may be transmitted to a target region. Further, the tag may be an active tag having a power source. In such a case, the position information from the active tag is received by the list reader 28. Similarly, the list reader 28 and the tablet PC 36 do not necessarily communicate with each other via a Bluetooth signal, and may communicate information with each other via an infrared signal, a radio wave having a predetermined frequency, or the like. Further, the list reader 28 may be connected to the tablet PC 36 by a wired cable. That is, various modes of information communication between devices according to the work management system or work management method of the present invention can be considered, and an optimal communication mode is appropriately selected and applied according to the design.

  Further, in the above-described embodiment, the example in which the present invention is applied to the pick-up work in the work area in which a plurality of types of parts 18 are arranged on any one of the shelves 14 as a plurality of sections is described. The area does not necessarily have to be the shelf 14, and a plurality of types of parts 18 are stored in any of a plurality of cabinets, or a plurality of types of parts 18 are placed on a floor divided into a plurality of areas. The present invention is suitably applied to picking up work in various work areas such as aspects.

  In the above-described embodiment, the various control means shown in FIG. 9 as the control functions related to the work management system 10 are functionally provided in the control unit 106 of the tablet PC 36 which is a single control device. However, some or all of these control functions may be provided in another control device, for example, the control unit 52 of the list reader 28.

  In the above-described embodiment, the list reader 28 and the tablet PC 36 are configured as separate devices. However, the configuration is replaced by a single device having the functions of the list reader 28 and the tablet PC 36. May be. Further, the control device applied to the work management system 10 does not necessarily have to be the tablet PC 36 having the touch panel display 104, and may be a personal computer having a keyboard as an input device. In addition, in a configuration in which the image display unit and the notification unit are provided as separate devices, a configuration in which the image display unit and the notification unit are connected to the control device by wire or wireless is naturally conceivable.

  In the above-described embodiment, the instruction tag 44t attached to the work instruction 44 specifies (in order to read) the instruction information corresponding to the data table 130 stored in the database 46, that is, the corresponding data table 130. ) Is stored as the identification information, but more detailed information regarding the work instruction, for example, identification of the component box tag 16t corresponding to the component 18 to be picked up from the component storage 12 in the target operation The information may be stored in the order in which it is picked up. Furthermore, the data table 130 as shown in FIG. 8 may be stored as instruction information in the instruction tag 44t.

  In the above-described embodiment, the work evaluation means 156 includes the work time A measurement means 136, the work time B measurement means 140, the work time C measurement means 142, the work time D measurement means 146, and the work time E measurement means 148. , And the working times A to F actually measured by the working time F measuring means 154, that is, the measured values T2 of the working times A to F stored in the data table 130, and the data table 130 are predetermined. The work according to the instruction information stored in the instruction tag 44t of the work instruction 44 is evaluated by comparing the standard value T1 of each work time. Such an evaluation may not be performed for all of the working times A to F, and at least a part of them may be evaluated. Achieve the prima facie effect of light.

  Further, in the above-described embodiment, the four-stage evaluation results of the respective work times A to F by the work evaluation means 156 are displayed on the display device 116, but simply measured values of the respective work times A to F. And the standard value may be displayed side by side on the display device 116.

  In the above-described embodiment, the work instruction sheet 44 includes an instruction sheet tag 44t that stores instruction information, and the instruction information stored in the instruction sheet tag 44t is read by the list reader 28. However, for example, the work instruction sheet 44 may store (print) instruction information as a two-dimensional code. In this case, the carriage 30 is provided with a barcode reader for reading the two-dimensional code as the reading device.

  In addition, although not illustrated one by one, the present invention is implemented with various modifications within a range not departing from the gist thereof.

10: Work management system 12: Parts storage (work area)
14: Shelf (area)
16t: Parts box tag (wireless tag)
18: Parts (article)
20: Column 22: IR marker (area information transmitter)
24: IR marker (column information transmitter)
25: IR marker (end position information transmitter)
26: Worker 26w: Hand 28: List reader (wireless tag reader, reader)
36: Tablet PC (control device)
44t: Instruction tag tag (wireless tag)
134: Objective column determination means 136: Work time A measurement means (fifth work time measurement means)
138: Destination area judging means 140: Working time B measuring means (fourth working time measuring means)
142: Working time C measuring means (second working time measuring means)
146: Working time D measuring means (working time measuring means)
148: Working time E measuring means (third working time measuring means)
150: Work completion determination means 154: Work time F measurement means (sixth work time measurement means)
156: Work evaluation means

Claims (16)

In order to perform a pick-up operation of a plurality of types of articles necessary for manufacturing a predetermined product, the articles are stored in each storage position where the same type of articles are stored in a work area in which the plurality of types of articles are stored for each type. a is arranged wireless tag indicating the type corresponding, by reading the identification information of the wireless tag by radio, a work management system for managing picked operations of the article by the operator,
A work instruction sheet for storing identification information of a wireless tag corresponding to at least the article to be picked up as instruction information regarding the picking up work of the article ,
A wireless tag reader that wirelessly reads the identification information of the wireless tag, which is used by being attached to or gripped by the hand of the worker,
A reading device for reading the instruction information stored in the work instruction;
A control device configured to be capable of receiving identification information of the wireless tag read by the wireless tag reader and instruction information read by the reading device,
The control device
As the instruction information according to the picked up work of the goods the subject, after being read by the identification information of the wireless tag corresponding to the article to be picked up subject the reader, the identification information of the wireless tag is read by the wireless tag reader A work management system comprising work time measuring means for measuring the work time up to. In the work area, a plurality of areas each storing a plurality of types of articles are provided at fixed positions,
Provided corresponding to each of the plurality of areas, comprising an area information transmitting device that transmits position information of each area for a predetermined range,
The controller is
The position information transmitted by the area information transmitting device is configured to be receivable,
Destination area determination for determining whether or not the position information from the area information transmitting apparatus corresponds to the instruction information during the pick-up work related to the predetermined instruction information read from the work instruction by the reading device Means,
The second work time for measuring the work time from when the determination by the destination area judging means is affirmed until the instruction information related to the picking up operation of the target article stored in the work instruction is read by the reading device The work management system according to claim 1, comprising measuring means. The controller is
After the identification information of the wireless tag corresponding to the target article is read by the wireless tag reader, the instruction information related to the work of picking up the next target article stored in the work instruction is read by the reading device. The work management system according to claim 1, further comprising third work time measuring means for measuring the work time up to. The plurality of areas form a plurality of columns, and each area is included in any one of the columns,
Provided corresponding to each of the plurality of columns, comprising a column information transmission device for transmitting the position information of each column for a predetermined range,
The controller is
The position information transmitted by the column information transmitting device is configured to be receivable,
Target column determination for determining whether or not the position information from the column information transmitting device corresponds to the instruction information during the pick-up work related to the predetermined instruction information read from the work instruction by the reading device Means,
4. A fourth work time measuring means for measuring a work time from when the determination by the destination column determining means is affirmed until the determination by the destination area determining means is affirmed. The work management system described in 1.   In the pick-up work related to the predetermined instruction information read from the work instruction sheet by the reading device, the control device affirms the determination by the target column determination means after the instruction information is read by the reading device. The work management system according to claim 4, further comprising fifth work time measuring means for measuring the work time up to. An end position information transmitting device that is provided corresponding to the work end position and transmits position information of the work end position to a predetermined range;
The controller is
The position information transmitted by the end position information transmission device is configured to be receivable,
Work completion determination means for determining whether or not all identification information corresponding to the articles to be picked up according to the instruction information stored in the work instruction is read by the wireless tag reader;
6. A sixth work time measuring means for measuring a work time from when the determination by the work completion determining means is affirmed until the position information from the end position information transmitting device is received. The work management system according to any one of 1 to 5.   The control device compares the work time actually measured by the work time measuring means with a standard value of each work time determined in advance, thereby indicating an instruction stored in the work instruction wireless tag. The work management system according to any one of claims 1 to 6, further comprising work evaluation means for evaluating work related to information. The work instruction sheet includes a work instruction wireless tag that stores instruction information related to the picking up work of the article,
The work management system according to claim 1, wherein the reader is the wireless tag reader. In order to perform a pick-up operation of a plurality of types of articles necessary for manufacturing a predetermined product, the articles are stored in each storage position where the same type of articles are stored in a work area in which the plurality of types of articles are stored for each type. a is arranged wireless tag indicating the type corresponding, by reading the identification information of the wireless tag by radio, a work management method for managing picked operations of the article by the operator,
A work instruction sheet for storing identification information of a wireless tag corresponding to at least the article to be picked up as instruction information regarding the picking up work of the article ,
A wireless tag reader that wirelessly reads the identification information of the wireless tag, which is used by being attached to or gripped by the hand of the worker,
A reading device for reading the instruction information stored in the work instruction;
In a work environment comprising: a control device configured to be capable of receiving identification information of the wireless tag read by the wireless tag reader and instruction information read by the reading device,
As the instruction information according to the picked up work of the goods the subject, after being read by the identification information of the wireless tag corresponding to the article to be picked up subject the reader, the identification information of the wireless tag is read by the wireless tag reader The work management method characterized by including the work time measurement process which measures the work time until. In the work area, a plurality of areas each storing a plurality of types of articles are provided at fixed positions,
Provided corresponding to each of the plurality of areas, comprising an area information transmitting device that transmits position information of each area for a predetermined range,
In the working environment configured to be able to receive the position information transmitted by the area information transmission device, the control device,
Destination area determination for determining whether or not the position information from the area information transmitting apparatus corresponds to the instruction information during the pick-up work related to the predetermined instruction information read from the work instruction by the reading device Process,
The second work time for measuring the work time from when the determination in the destination area determination process is affirmed until the reading device reads the instruction information related to the picking up of the target article stored in the work instruction. The work management method according to claim 9, comprising a measurement process.   After the identification information of the wireless tag corresponding to the target article is read by the wireless tag reader, the instruction information related to the work of picking up the next target article stored in the work instruction is read by the reading device. The work management method according to claim 9, further comprising a third work time measurement process for measuring the work time up to. The plurality of areas form a plurality of columns, and each area is included in any one of the columns,
Provided corresponding to each of the plurality of columns, comprising a column information transmission device for transmitting the position information of each column for a predetermined range,
In the work environment configured to be able to receive the position information transmitted by the column information transmission device, the control device,
Target column determination for determining whether or not the position information from the column information transmitting device corresponds to the instruction information during the pick-up work related to the predetermined instruction information read from the work instruction by the reading device Process,
The work according to claim 10 or 11, further comprising: a fourth work time measurement process for measuring a work time from a positive determination in the target column determination process to a positive determination in the destination area determination process. Management method.   When picking up the predetermined instruction information read from the work instruction by the reading device, the work time from when the instruction information is read by the reading device until the determination in the target column determination process is affirmed The work management method according to claim 12, comprising a fifth work time measurement process for measuring. An end position information transmitting device that is provided corresponding to the work end position and transmits position information of the work end position to a predetermined range;
In the work environment configured to be able to receive the position information transmitted by the end position information transmission device, the control device,
A work completion determination process for determining whether or not all identification information corresponding to the articles to be picked up according to the instruction information stored in the work instruction is read by the wireless tag reader;
A sixth work time measurement process for measuring a work time from when the determination in the work completion determination process is affirmed until the position information from the end position information transmission device is received. The work management method according to any one of the preceding claims.   By comparing the work time actually measured in the work time measurement process with a predetermined standard value of each work time, the work related to the instruction information stored in the work instruction wireless tag is performed. The work management method according to claim 9, comprising a work evaluation process to be evaluated. The work instruction sheet includes a work instruction wireless tag that stores instruction information related to the picking up work of the article,
The work management method according to claim 9, wherein the reader is the wireless tag reader.

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