JP2010146090A - Process management method, process management system, management server, terminal and rfid tag - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To cope with a rapid change of a work process instruction to perform a certain instruction of next work contents. <P>SOLUTION: This process management system 10 includes: terminals 100 each including a change confirmation means 110 which collates identification information of each work process and work process order included in storage information of an RFID tag 50, and management identification information of a storage means, and sends a change confirmation request including information about a corresponding work object, and the identification information and the work process order of a succeeding work process to a management server 200, and a change information output means 111 which receives a decision result corresponding to the change confirmation request from the management server 100, and outputs the identification information of the work process having a change in the succeeding work process; and the management server 200 including a decision means 210 which collates a process code table 225, and the identification information and the work process order of the succeeding work process and the information about the work object included in the change confirmation request, decides the work process wherein the change occurs in the process code table about the succeeding work process, and sends a decision result to the terminal. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a process management method, a process management system, a management server, a terminal, and an RFID tag. Specifically, it can respond to a sudden change in a work process instruction and reliably instruct the next work content. It relates to the technology.

In recent years, a technique for providing an RFID tag to a management target object and managing the target object according to information stored in the RFID tag has begun to be adopted. For example, with regard to production management, process information indicating one or more work processes and their order, and work status flags indicating whether or not each work process has been completed is stored in the storage unit of the RFID tag. The installed terminal device refers to the work process of the RFID tag read by the reader / writer, the process order, and the work status flag indicating whether or not each work process has been completed. A technique (see Patent Document 1) that easily performs instruction control of the work process is proposed.
JP 2007-213132 A

  However, when process management or the like is performed using only the RFID tag, the workers cannot visually check the information stored in the RFID tag attached to the work target. Therefore, when a problem occurs in the RFID tag or a device using the RFID tag, the workers cannot know the work content based on the information stored in the RFID tag. On the other hand, if the information stored in the RFID tag is printed on the surface of the RFID tag, the printed information on the surface of the RFID tag cannot be easily changed even if the process contents are changed. It is difficult to confirm quickly.

  Accordingly, the present invention has been made in view of the above problems, and a main object of the present invention is to provide a technique capable of responding to a sudden change in work process instruction and enabling reliable instruction of the next work content.

  The process management method of the present invention that solves the above problems is a technique for managing a work process for a work object (product on a production line, semi-finished product, etc.) attached with an RFID tag, and is installed for each work process. And a computer system including at least a management server connected to the terminals by a network.

  That is, the terminal includes a communication unit that communicates with another device and a storage unit that stores management identification information that is identification information of a work process that is a management target, and each work site where each work process is performed on the work target. It is a terminal installed in.

  This terminal receives storage information of the RFID tag from a reader / writer that has performed a reading operation on the RFID tag incidental to a work object via a communication unit, and the work process sequence included in the received storage information and The identification information of each work process is collated with the management identification information read from the storage means, and the identification information of the subsequent work process after the work process corresponding to the management identification information is specified, and this subsequent work process The change confirmation process is executed, in which a change confirmation request including the work process sequence and identification information and the information on the corresponding work object is transmitted to the management server via the communication means.

  On the other hand, the management server includes a communication unit that communicates with another device, and a storage unit that stores a process code table storing a work process sequence for each work object and identification information of each work process. An apparatus for receiving a change confirmation request from the terminal via the communication means, information on the work object included in the change confirmation request, work process sequence and identification information of a subsequent work process, the process code table, And performing a determination process for determining a work process that has changed in the process code table for the subsequent work process of the target work object and transmitting the determination result to the terminal via the communication unit To do.

  On the other hand, the terminal receives the determination result from the management server via the communication means, and outputs to the output interface identification information of a work process having a change in the subsequent work process indicated by the determination result. Execute the process.

  In the process management method, the management server accepts a write instruction including work object information from an input interface or another terminal via the communication means, and the corresponding work is stored in the process code table of the storage means. An RFID tag attached to the work object by reading out the work process order corresponding to the object and the identification information of each work process included in the work process, and writing the information for writing via the reader / writer via the communication means It is preferable to execute a writing process for performing writing on.

  In this case, the management server executes a print instruction process for transmitting a print instruction to the print medium for all or part of the write information relating to the RFID tag to the printer device via the communication unit.

  Further, the printer device is connected to the management server so as to be communicable, receives the print instruction from the management server, and prints all or part of the information for writing included in the print instruction as a print medium The printing process is executed, and the printing medium is discharged by the transport mechanism.

  In the process management method, the RFID tag includes the print medium housing structure, and the printer device transfers the print medium on which the printing process has been completed to the RFID tag housing structure by the transport mechanism. A medium accommodation process may be executed.

  The terminal in the process management method outputs, in the change information output process, identification information of a work process in which there is a change in the subsequent work process indicated by the determination result, and a request for confirming the print content of the print medium. A process of outputting to the interface, accepting a write approval instruction for the work process with the change at the input interface, and rewriting the identification information after the change for the work process with the change in the subsequent work process via the communication unit. It is good also as performing with respect to the RFID tag attached to the said work target object via the reader / writer.

  In the process management method, the terminal receives a work completion notification from another terminal via the input interface or the communication means, and corresponds to the identification information of the corresponding work process for the RFID tag attached to the work object. Based on the completion setting process for executing the writing process of the attached work completion flag via the communication means and the reader / writer, the work process sequence included in the storage information of the RFID tag, and the identification information of each work process The next work process instruction process may be executed in which identification information of the next work process of the work process that is the completion flag writing process target is specified and the identification information of the next work process is output to the output interface. .

  Further, in the process management method, the terminal receives information stored in the RFID tag via a communication unit from a reader / writer that has performed a reading operation on the RFID tag attached to the work object, and the received information is received here. The work process order included in the stored information and the identification information of each work process are compared with the management identification information read from the storage means, and the identification information of the previous work process whose order is earlier than the work process corresponding to the management identification information The operation completion flag for each previous work process is specified by the received stored information, and if there is a work process that does not correspond to the work completion flag in the previous work process, identification information of the corresponding work process is obtained. An incomplete warning process that is output to the output interface as information on an incomplete work process may be executed.

  Further, in the process management method, the determination result received from the management server by the terminal in the change information output process is that there is no work process having a change in the subsequent work process, and the incomplete warning In the process, when it is determined that there is no work process without a work completion flag associated with the previous work process, the completion setting process may be executed.

  In addition, the process management system of the present invention includes a communication unit that communicates with another apparatus, a storage unit that stores management identification information that is identification information of a work process that is a management target, and a reading for the RFID tag that is attached to the work target. The storage information of the RFID tag is received from the reader / writer that has performed the operation via the communication unit, the work process order included in the received storage information and the identification information of each work process, and the management read from the storage unit The identification information is collated, the identification information of the subsequent work process after the work process corresponding to the management identification information is specified, the work process order and identification information of this subsequent work process, the information of the corresponding work object, A change confirmation request containing the change confirmation request to the management server via the communication means, and a determination result corresponding to the change confirmation request via the communication means A terminal provided with a change information output means that outputs to the output interface identification information of a work process that has been changed in the subsequent work process indicated by the determination result, and a communication means that communicates with another device; Storage means for storing a process code table storing work process sequence for each work object and identification information of each work process, and a change confirmation request is received from the terminal via the communication means. The work code including the information on the work object and the work process order and identification information of the subsequent work process are compared with the process code table, and the work in which the process code table is changed with respect to the subsequent work process of the work object. A management server including a determination unit that determines a process and transmits the determination result to the terminal via the communication unit. And butterflies.

  In addition, the management server of the present invention includes a communication unit that communicates with other devices, a storage unit that stores a process code table storing a work process sequence for each work object and identification information of each work process, and an input interface or A write instruction including work object information is received from another terminal via the communication means, and the work process sequence corresponding to the work object and the process steps included in the work code are stored in the process code table of the storage means. A writing unit that reads the identification information and writes the writing information to an RFID tag attached to the work object via a reader / writer via the communication unit, and a document relating to the RFID tag. Print instruction means for transmitting a print instruction to the print medium for all or part of the embedded information to the printer device via the communication means; The change confirmation request is received from the terminal through the means, the information on the work object included in the change confirmation request, the work process sequence and identification information of the predetermined work process, and the process code table are collated, and the corresponding work Determination means for determining a work process in the process code table that has changed in the predetermined work process of the object, and transmitting the determination result to the terminal via the communication means. And

  In addition, the terminal of the present invention performs a reading operation on a communication unit that communicates with another device, a storage unit that stores management identification information that is identification information of a work process that is a management target, and an RFID tag attached to the work target. The storage information of the RFID tag is received from the reader / writer via the communication means, the work process order included in the received storage information and the identification information of each work process, and the management identification information read from the storage means And identifying identification information of a subsequent work process whose order is later than the work process corresponding to the management identification information, including the work process order and identification information of the subsequent work process and information of the corresponding work object A change confirmation unit that transmits a change confirmation request to the management server via the communication unit, and a determination result corresponding to the change confirmation request via the communication unit Received Ri, and outputs the identification information of the working process there is a change that indicates the determination result to the output interface, characterized in that it comprises a change information output means.

  In addition, the RFID tag of the present invention is provided with a print medium housing structure. The RFID tag may be any storage medium as long as it has a wireless communication function with a reader / writer and can be attached to a work object.

  In addition, the management server receives an instruction to change the process code table from a management terminal via an input interface or communication means, and updates or deletes data, or newly registers data.

  In addition, the problems disclosed by the present application and the solutions thereof will be clarified by the embodiments of the present invention and the drawings.

  According to the present invention, it is possible to reliably instruct the next work content in response to a sudden change in the work process instruction.

--- System configuration ---
Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a network configuration diagram of the process management system 10 of the present embodiment. A process management system 10 shown in FIG. 1 is a computer system that responds to a sudden change in a work process instruction and enables a reliable instruction of the next work content. Each apparatus which comprises the process management system 10 in such this embodiment is demonstrated below.

  The terminal 100 constituting the process management system 10 (hereinafter referred to as the system 10) is a computer installed at each work site where each work process is performed on a work target, and a hard disk drive or the like to have a function for realizing the present invention. The program 102 stored in the non-volatile storage means 101 is read out to the RAM 103 and executed by the CPU 104 as an arithmetic unit. The terminal 100 includes an input interface 105 such as various keyboards and buttons generally provided in a computer device, and an output interface 106 such as a display. In addition, a communication unit 107 is provided for exchanging data with the reader / writer 20 and the management server 200 of the RFID tag 50.

  Next, functional units that are configured and held in the storage unit 101 based on the program 102, for example, by the terminal 100 configuring the system 10 will be described. Note that the terminal 100 stores management identification information 5 as identification information of a work process to be managed in a storage unit. The management identification information 5 is a process code of a work process that the terminal 100 is in charge of.

  The terminal 100 receives the storage information of the RFID tag 50 from the reader / writer 20 that has performed the reading operation on the RFID tag 50 attached to the work object via the communication unit 107, and the storage information received here. The operation process order and the identification information of each operation process included in the management process are compared with the management identification information read from the storage unit 101, and the identification information of the subsequent operation process after the operation process corresponding to the management identification information is obtained. There is provided a change confirmation unit 110 that identifies and transmits a change confirmation request including the work process sequence and identification information of the subsequent work process and information of the corresponding work object to the management server 200 via the communication unit 107.

  Further, the terminal 100 receives a determination result corresponding to the change confirmation request from the management server 200 via the communication unit 107, and identification information of a work process having a change in the subsequent work process indicated by the determination result Is output to the output interface 106, and a change information output unit 111 is provided.

  Further, the change information output unit 111 of the terminal 100 outputs, to the output interface 106, identification information of a work process that is changed in the subsequent work process indicated by the determination result and a request for confirming the print content of the print medium. Then, through the communication means 107, the input interface 105 receives a write approval instruction for the work process with the change, and rewrites the work process with the change to the identification information after the change with respect to the work process with the change. It is preferable to execute the process on the RFID tag 50 attached to the work object via the reader / writer 20.

  Further, the terminal 100 receives a work completion notification from another terminal via the input interface 105 or the communication means 107, and associates it with identification information of the corresponding work process for the RFID tag 50 attached to the work object. It is preferable to provide the completion setting means 112 for executing the work completion flag writing process via the communication means 10 and the reader / writer 20.

  In addition, the terminal 100 identifies the next work process of the work process that is the target of the work completion flag writing process based on the work process order included in the information stored in the RFID tag 50 and the identification information of each work process. It is preferable to include a next work process instruction means 113 that specifies information and outputs identification information of the next work process to the output interface 106.

  Further, the terminal 100 receives the storage information of the RFID tag 50 from the reader / writer 20 that has performed the reading operation on the RFID tag 50 attached to the work object via the communication means 107, and the storage information received here. The operation process order and the identification information of each operation process included in the management process are compared with the management identification information read from the storage unit 101, and the identification information of the previous operation process whose order is earlier than the operation process corresponding to the management identification information is obtained. The work completion flag for each previous work process is identified by the received storage information, and if there is a work process that does not correspond to the work completion flag in the previous work process, the identification information of the corresponding work process is not stored. It is preferable to provide incomplete warning means 114 that outputs to the output interface 106 as information on the completed work process.

  Further, the determination result received from the management server 200 by the change information output unit 111 of the terminal 100 indicates that there is no work process having a change in the subsequent work process. It is preferable to execute the completion setting process when it is determined that there is no work process that does not have a work completion flag associated with the work process.

  Subsequently, the management server 200 constitutes the process management system 10 together with the terminals 100 and the like. The management server 200 is, for example, a server device that manages all work processes in which the terminal 100 is installed. Such a management server 200 reads out a program 202 stored in a non-volatile storage means 201 such as a hard disk drive so as to have a function for realizing the present invention into a RAM 203 and executes it by a CPU 204 as an arithmetic unit. In addition, the management server 200 may include an input interface 205 such as various keyboards and buttons generally provided in a computer device, and an output interface 206 such as a display as necessary. In addition, a communication unit 207 for exchanging data with the terminal 100, the reader / writer 25, and the printer device 30 is provided.

  Subsequently, functional units that the management server 200 configures and holds in the storage unit 201 based on, for example, the program 202 will be described. The management server 200 stores a process code table 225 and an assembly code table 226 in the storage unit 201 (each table will be described later). The management server 200 receives an instruction to change the process code table 225 or the assembly code table 226 from the management terminal 300 via the input interface 205 or the communication unit 07, and performs data update, deletion, new registration, and the like. Shall.

  The management server 200 receives a change confirmation request from the terminal 100 via the communication unit 207, and information on the work object and work process sequence and identification information of the subsequent work process included in the change confirmation request, The process code table 225 is collated, the work process in the process code table 225 that has changed in the subsequent work process of the corresponding work object is determined, and the determination result is transmitted to the terminal via the communication unit 207. 100 is provided.

  Further, the management server 200 receives a write instruction including work object information from the other terminal 100 via the input interface 205 or the communication unit 207, and the corresponding work is stored in the process code table 225 of the storage unit 201. The work process sequence corresponding to the object and the identification information of each work process included in the work process are read, and the writing information is attached to the work object via the reader / writer 25 via the communication means 207. A writing unit 211 for writing to the RFID tag 50 is provided.

  Further, the management server 200 transmits a print instruction to the print medium 31 for all or a part of the writing information regarding the RFID tag 50 to the printer device 30 via the communication means 207. Is provided.

  The printer device 30 is a printer device that is communicably connected to the management server 200 via a network or the like. The printer device 30 receives the print instruction from the management server 200, prints all or part of the writing information included in the print instruction on a print medium 31, and the print mechanism 31 performs the print operation. Printing means 36 for discharging the medium 31 is provided.

  As shown in FIG. 2, the transport mechanism 32 includes a transport path 34 that connects between the print medium discharge port 33 of the printer device 30 and the opening 60 of the accommodation structure 59 (of the print medium 31) included in the RFID tag 50. A moving mechanism 35 (for example, a very small belt conveyor mechanism, a robot arm that grips and moves the print medium, etc.) for moving the print medium 31 on the conveyance path 34 may be provided. In this case, the print medium 31 discharged from the print medium discharge port 33 of the printer device 30 is moved on the transport path 34 by the moving mechanism 35 and inserted into the opening 60 of the RFID tag 50. It is accommodated in the accommodation structure 59. Such a printer device 30 can execute a medium accommodation process in which the print medium 31 having undergone the printing process is accommodated in the accommodation structure 59 of the RFID tag 50 by the transport mechanism 32.

  The reader / writers 20 and 25 of the RFID tag 50 are reader / writer devices for the RFID tag 50 including the RFID chip 51. The RFID tag 50 is assumed to have a configuration in which, for example, the RFID chip 51 is stored in an appropriate storage case such as a plastic casing 52, and can communicate wirelessly with the reader / writers 20 and 25.

  The RFID chip 51 has a ROM 54, a RAM 55, and the program 53 for storing a program 53 (a program for returning stored information in response to a request from the reader / writers 20 and 25, or conversely storing data). Is read from the ROM 54 to the RAM 55, and is executed by the CPU 56. The EEPROM 57 for storing the product information 12 including the work process sequence, each work process identification information and each work completion flag data associated with the corresponding work process identification information, the reader It is comprised from the communication means 58 (an antenna is also included) which bears a wireless communication process with the writers 20 and 25. FIG. 2, the RFID chip 51 is stored on the back surface of the storage structure 59 that stores the print medium 31 so as to be sandwiched between the buffer materials 4 and the like.

  The units 110 to 114 and 210 to 212 in each device constituting the system 10 described so far may be realized as hardware, or stored in an appropriate storage device such as a memory or HDD (Hard Disk Drive). It may be realized as a program. In this case, the CPU of each device reads the corresponding program from the storage device into the RAM in accordance with the execution of the program, and executes it.

--- Example of table structure ---
Next, an example of a table used by the system 10 of this embodiment will be described. FIG. 3 is a diagram illustrating a configuration example of (a) the process code table 225, (b) the assembly code table 226, and (c) the work state flag table 125 in the present embodiment. In the present embodiment, description will be made based on the assumption that a printed circuit board is assumed as the work object. Of course, the work object is not limited to a printed circuit board, and all products (such as home appliances and foods) on which process management is executed can be assumed as the work object.

  The process code table 225 is a table storing a work process order for each work object and identification information of each work process. The process code table 225 exemplified here includes, for example, “setup”, “surface mounting”, “insertion mounting”, “soldering”, “soldering”, “up to seven work processes from process codes“ 1 ”to“ 7 ”. For “visual inspection”, “varnish”, and “inspection”, the execution necessity of the corresponding work process is set as “◯” = necessary, “−” = unnecessary. This necessity of execution is set for each of three patterns of assembly code, “AA”, “B0”, and “C0”. The assembly code corresponds to the type of the printed circuit board.

  In the illustrated example, for example, the assembly code “AA” includes a process code “1” = “setup”, “2” = “surface mounting”, “4” = “soldering”, “5” = “visually”. , “6” = “varnish”, and “7” = “inspection” in order.

  The assembly code table 226 is an assembly code of the printed circuit board among the assembly codes “AA”, “B0”, and “C0” in the process code table 225 with respect to the type of the printed circuit board as a work object. It is a table in which items that match the contents are set in association with each other. In the illustrated example, the assembly code “AA” is included in the printed circuit board model “PB001”, the assembly code “B0” is included in the printed circuit board model “PA002”, and the assembly code “C0” is included in the printed circuit board model “PC003”. “,” Is associated with the assembly code “AA” in the printed circuit board model “DB001”.

  The work status flag table 125 is a table of work status flags that the terminal 100 writes to the RFID tag 50. The terminal 100 receives an instruction of a work state from, for example, a worker at the input interface 105, extracts a work state flag corresponding to the work state indicated by the instruction from the work state flag table 227, and sets the reader / writer 20 The work status flag is set to be written in the RFID tag 50. Such a work status flag table 125 has, for example, work states such as no work (= work unnecessary), unworked (= work required but not started yet), work in progress, work done, work change, respectively. Corresponding work status flags “0” to “4” are set.

  In this case, the RFID tag 50 performs not only the work completion flag (in the above example, “3” which is a “worked” flag) but also the work for each work process “1” to “7” in the EEPROM 57. Work flags “0” to “4” indicating the situation may be stored. In this case, the RFID tag 50 stores the work state flag in association with the work process order as the storage information, the identification information of each work process, and the identification information of the corresponding work process.

  FIG. 4 shows a configuration example of stored information (product information) in the RFID tag 50 of the present embodiment. As shown in the process information 18 of FIG. 3, the work status flag is initially set to “1” and none “0” for each of the process codes “1” to “7” as identification information of the work process. Yes. Thereafter, when the work in the work process (for example, the process code “1”) for the work object is started at the work process site, the terminal 100 accepts this instruction through the input interface 105, and the work status flag table A work state flag corresponding to “2”, that is, “working” is extracted from 125, and is written and set in association with the corresponding work process “1” in the process information 18 of the RFID tag 50. The same processing is performed for other work states.

  As shown in FIG. 4, in addition to the process information 18, the RFID tag 50 includes a tag ID 13, a printed circuit board model 14 serving as management identification information of a work object, a quantity 15 (the RFID tag 50 is included in a lot of printed circuit boards). Lot number 16), a lot number 16 to which the printed circuit board belongs, and an assembly code 17 corresponding to the printed circuit board type are stored in the EEPROM 57. Of course, these data 13 to 17 are set in advance by the management server 200. In addition, the product information 12 includes the data 13 to 18.

--- Processing flow example 1 ---
Hereinafter, the actual procedure of the process management method in the present embodiment will be described with reference to the drawings. Note that various operations corresponding to the process management method described below are realized by a program that is read and executed in the RAM of each device constituting the system 10. And this program is comprised from the code | cord | chord for performing the various operation | movement demonstrated below.

  FIG. 5 is a diagram showing a processing flow example 1 of the process management method of the present embodiment. Here, the flow of writing the necessary data and outputting the print medium 31 to the RFID tag 50 before the printed circuit board, which is the work target, is put into the production line will be described. In this case, the writing unit 211 of the management server 200 includes, for example, the type “PB001” of the printed circuit board as the work object information from the input interface 205 (or other terminal via the communication unit 207). A write instruction is accepted, and the corresponding assembly code “AA” is specified from the assembly code table 226 of the storage means 201 (s100). The write instruction may be issued by the management server 200 itself when it reads the data of the printed circuit board model 14 stored in the RFID tag 50 from the reader / writer 25 (in the EEPROM 57 of the RFID tag 50). This is because the data of the printed circuit board model 14 is stored for the printed circuit board to be attached to the RFID tag 50).

  The process code table 225 is used as a key for the specified assembly code “AA”, and the corresponding process code, work process name, and information on necessity / unnecessity of work process (work process order and identification of each work process included in the work process) Information) is read (s101), and the writing information is written to the RFID tag 50 attached to the printed circuit board “PB001” via the reader / writer 25 via the communication means 207 (s102). .

  On the other hand, the reader / writer 25 receives write information from the management server 200. Then, the writing information is written into the EEPROM 57 via the communication means 58 of the RFID tag 50 (s103). The RFID tag 50 stores the writing information as the process information 18. Further, as described above, the product information 12 including the process information 18 is stored in the EEPROM 57 of the RFID tag 50. Other than the process information 18, the tag ID 13, the printed board model 14, the quantity 15, the lot number 16, and the assembly code 17 are set in advance.

  Further, the print instruction unit 212 of the management server 200 transmits a print instruction to the print medium 31 for all or a part of the writing information regarding the RFID tag 50 to the printer device 30 via the communication unit 207. (S104). The printing unit 36 of the printer device 30 receives the print instruction from the management server 200 (s105), and prints all or part of the writing information included in the print instruction on the print medium 31. Then, the print medium 31 is discharged by the transport mechanism 32 (s106). For example, as shown in the print medium 31 of FIG. 2, a lot number (“111111” in the example of the drawing) is used as the information for writing or all of the writing information printed on the print medium 31 by the printer device 30. A printed circuit board model (“PB001” in the example in the figure), a process code (“1” to “7” in the example in the figure), and a work status flag (“1” to “0” in the example in the figure) can be assumed.

  Further, the printing means 36 of the printer device 30 is arranged on a conveyance path 34 that connects between the print medium discharge port 33 of the printer device 30 and the opening 60 of the accommodation structure 59 (of the print medium 31) provided in the RFID tag 50. Is moved by the moving mechanism 35 and inserted into the opening 60 of the RFID tag 50 (s107).

  The RFID tag 50 in which the writing information writing process and the print medium 31 are set in this way flows on the production line together with the printed circuit board.

--- Processing flow example 2 ---
Next, various processes for the RFID tag 50 attached to the printed circuit board flowing on the production line will be described. FIG. 6 is a diagram showing a processing flow example 2 of the process management method of the present embodiment. As shown in FIG. 1, the production line is divided into a plurality of work processes, and the terminal 100 and the reader / writer 20 are installed in each work process.

  In this case, the completion setting unit 112 of the terminal 100 receives a notification instruction of a work state such as work start or work completion from the input interface 105 (or another terminal via the communication unit 107), and the notification instruction includes A work state flag corresponding to the work state is extracted from the work state flag table 125 (s200). For example, if the notification instruction is “work start”, the completion setting unit 112 of the terminal 100 extracts the work state flag “2” (= working) from the work state flag table 125. Further, the completion setting unit 112 reads, for example, a process code “2” as the management identification information 5 from the storage unit 101.

  Then, the work status flag “2” is set in the EEPROM 57 of the RFID tag 50 attached to the printed circuit board “PB001” in the process information 18 in the corresponding work process “2” (= “management identification information 5”). 2 ”(corresponding to 2 ″) and write processing is performed (s201). This writing process is executed via the communication means 10 and the reader / writer 20. The process information 18 of the EEPROM 57 after the writing process is shown in the example at the bottom of FIG. The work status flag of the process code “2” becomes “2.

  Thus, the printed circuit board “PB001” goes through each work process on the production line. For example, at the start of the work process of the process code “4”, the change confirmation means 110 of the terminal 100 installed in the work process of the process code “4” is the RFID tag attached to the printed circuit board “PB001”. The information stored in the RFID tag 50 is received via the communication means 107 from the reader / writer 20 that has performed the reading operation on the terminal 50 (s202). Further, the process information 18 (work process order and identification information of each work process) included in the stored information received here, and “4” (= process code) as the management identification information 5 read from the storage means 101 are included. By collation, subsequent work processes “5” to “7” whose order is later than the work process corresponding to “4” as the management identification information 5 are specified (s203).

  Further, the change confirmation means 110 of the terminal 100 performs the work process order and identification information of the subsequent work process, that is, the work process orders “5” to “7” and the process codes “5”, “6”, “7”. Then, a change confirmation request including the printed circuit board type “PB001” (included in the stored information obtained from the RFID tag 50) of the corresponding printed circuit board is transmitted to the management server 200 via the communication means 107 (s204). ).

  On the other hand, the determination unit 210 of the management server 200 receives the change confirmation request via the communication unit 207, and the printed circuit board type “PB001” of the printed circuit board included in the change confirmation request and the work process sequence of the subsequent work process. The identification information is collated with the process code table 225 (s205). As a result, a work process in which change has occurred in the process code table 225 for the subsequent work processes “5” to “7” of the corresponding printed circuit board “PB001” is determined, and the determination result is transmitted via the communication unit 207. The data is transmitted to the terminal 100 (s206).

  For example, in the above example, the determination unit 210 identifies the assembly code “AA” of the printed circuit board model “PB001” in the assembly code table 226, and uses the assembly code “AA” as a key to configure the process code table. From 225, data on whether or not the work process after the process code “5” is necessary is read out. In the case of the example of FIG. 3A, the determination unit 210 determines that the process code “5” for the assembly code “AA” is “◯” (= necessary to execute), and the process code “6” is “◯”. (= Required), process code “7” is read as “◯” (= required), and it can be determined that these data are not different from the subsequent work process obtained from the RFID tag 50. On the other hand, the determination means 210 is different from the subsequent work process obtained from the RFID tag 50 in that the data of necessity of each process of the process codes “5” to “7” for the assembly code “AA” is obtained. If so, identify the work process with the change.

  On the other hand, the change information output unit 111 of the terminal 100 receives the determination result corresponding to the change confirmation request from the management server 200 via the communication unit 107, and the change is performed in the subsequent work process indicated by the determination result. Identification information of a certain work process is output to the output interface 106 (s207). At this time, the change information output unit 111 receives the identification information of the work process that is changed in the subsequent work processes “5” to “7” indicated by the determination result, and the confirmation request for the print content of the print medium 31. Output to the output interface 106.

  The worker in the work process with the process code “4” displays the identification information (for example, process code “6”) of the work process with the change displayed on the output interface 106 and the print contents of the print medium 31. After confirming the confirmation request and confirming the difference between the process code “6” and the print content of the print medium 31, an input of change approval is input through the input interface 105.

  On the other hand, the change information output means 111 accepts a write approval instruction for the work process with the change at the input interface 105, and the identification information after the change for the work process “6” with the change in the subsequent work process. The processing for rewriting to “-” = unnecessary in this case is performed on the RFID tag 50 attached to the printed circuit board “PB001” via the reader / writer 20 via the communication unit 107 (s208). ). Thereafter, the process returns to step s202.

  Further, the incomplete warning unit 114 of the terminal 100 transmits the information stored in the RFID tag 50 via the communication unit 107 from the reader / writer 20 that has performed the reading operation on the RFID tag 50 attached to the printed circuit board “PB001”. The process information 18 (work process order and identification information of each work process) contained in the received storage information received here is collated with the process code “4” as the management identification information 5 read from the storage means 101, The previous work processes “1” to “3” whose order is earlier than the process code “4” as the management identification information are specified (s209).

  The incomplete warning means 114 identifies the work status flag for each previous work process in the received process information 18, and no work completed flag is associated with the previous work processes "1" to "3". It is determined whether there is a work process (s210). For example, if the work status flag for the process code “1” is “3” = that is, the work is completed, and the work status flag for the process code “2” is “1” = that is, the work is not performed, the incomplete warning is issued. The means 114 can determine that the processed code is not associated with the process code “2”.

  The unfinished warning means 114 outputs the process code “2” of the corresponding work process “2” not associated with the work done flag to the output interface 106 as information on the unfinished work process (s211). FIG. 8A shows an example of information display of an incomplete work process on the output interface 106. In the example of this figure, the process name “soldering” corresponding to the process code “4” as the management identification information 5 is displayed as its own process code 603, and the work status of this process “soldering” is represented as a work category 605. Show. In addition, as an incomplete work process information 601, a message “Return to surface mounting in the previous process” is displayed. This process flow example 2 continues until the work target finishes flowing on the production line, that is, until the work completion flag is set for all work steps.

--- Processing flow example 3 ---
Next, processing when work is completed in a certain work process will be described. FIG. 7 is a diagram showing a process flow example 3 of the process management method of the present embodiment. For example, it is assumed that the work process of “varnish” with the process code “6” is completed. In this case, the completion setting means 112 of the terminal 100 installed in the work process with the process code “6” receives the work completion notification from the input interface 105 (or another terminal via the communication means 107) (s300). ).

  At this time, the completion setting unit 112 of the terminal 100 determines that the determination result received from the management server 200 by the change information output unit 111 (result obtained in step s207) is a subsequent work step (in this case, work In the process “7”), there is no work process that has changed, and the work completion flag corresponds to the previous work process (in this case, work processes “1” to “5”) as determined by the incomplete warning means 114. It is determined whether there is no work process not attached (result determined in step s210) (s301).

  When the completion setting means 112 determines that there is no work process that has changed in the subsequent work process and that there is no work process that does not correspond to the work completion flag in the previous work process (s301: OK), the printed circuit board “PB001” A process of writing the work completion flag “3” associated with the process code “6” of the corresponding work process to the RFID tag 50 attached to “” is executed via the communication means 10 and the reader / writer 20 (s302). ). The completion setting means 112 extracts “3” as the work state flag from the work state flag table 125, and sets the work state flag “3” in the process code “5” of the process information 18 of the RFID tag 50. These are set in association with each other.

  Further, the next work process instruction means 113 of the terminal 100 sets the work done flag “3” based on the process information 18 (work process order and identification information of each work process) included in the stored information of the RFID tag 50. The process code “7” of the next work process of the work process “6” that is the write process target is specified, and the process code “7” of the next work process is output to the output interface 106 (s303). An example in which the next work process is output to the output interface 106 is shown in FIG. In this example, the work process “varnish” corresponding to the process code “6” and the information of the work state are displayed as the own process code 603 and the work classification 605. Also, the corresponding work name “inspection” is displayed as information 601 regarding the next work process “7”. Thus, workers in the work process can surely confirm the next work process.

  Therefore, according to the present embodiment, it is possible to respond to a sudden change in the work process instruction and to reliably instruct the next work content.

  As mentioned above, although embodiment of this invention was described concretely based on the embodiment, it is not limited to this and can be variously changed in the range which does not deviate from the summary.

It is a network block diagram of the process management system of this embodiment. It is a figure which shows the example of a conveyance form of the printing medium in this embodiment, and the structural example of an RFID tag. It is a figure which shows each structural example of (a) process code table in this embodiment, (b) assembly code table, and (c) work state flag table. It is a figure which shows the example of the storage information of the RFID tag in this embodiment. It is a figure which shows the process flow example 1 of the process management method of this embodiment. It is a figure which shows the process flow example 2 of the process management method of this embodiment. It is a figure which shows the process flow example 3 of the process management method of this embodiment. It is a figure which shows the example of an output of this embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Process management system 12 Product information 18 Process information 20, 25 RFID reader / writer 30 Printer apparatus 31 Print medium 32 Conveyance mechanism 33 Print medium discharge port 34 Conveyance path 35 Movement mechanism 36 Printing means 50 RFID tag 51 RFID chip 52 Plastic housing 53 Program 54 ROM
55 RAM
56 CPU
57 EEPROM
58 Communication means 59 Housing structure 60 Opening 100 Terminal 101, 201 Storage means 102, 202 Program 103, 203 RAM (Random Access Memory)
104, 204 CPU (Central Processing Unit)
105, 205 Input interface 106, 206 Output interface 107, 207 Communication means 110 Change confirmation means 111 Change information output means 112 Completion setting means 113 Next work process instruction means 114 Incomplete warning means 127 Work status flag table 140 Network 200 Management server 210 Determination means 211 Writing means 212 Printing instruction means 225 Process code table 226 Assembly code table

Claims (11)

A communication unit that communicates with another device; and a storage unit that stores management identification information that is identification information of a work process that is a management target. ,
The storage information of the RFID tag is received via the communication means from the reader / writer that has performed the reading operation on the RFID tag attached to the work object, and the work process sequence and each work process included in the received storage information are received here. The identification information and the management identification information read from the storage means are collated, the identification information of the subsequent work process after the work process corresponding to the management identification information is specified, and the work process order of this subsequent work process A change confirmation request including the identification information and the information on the corresponding work object is transmitted to the management server via the communication means,
A management server comprising communication means for communicating with other devices, and storage means for storing a process code table storing work process order for each work object and identification information of each work process,
Receiving a change confirmation request from the terminal via the communication means, collating the work object information included in the change confirmation request and the work process sequence and identification information of the subsequent work process, and the process code table; Determine a work process in which a change has occurred in the process code table for the subsequent work process of the corresponding work object, and send a determination result to the terminal via the communication means,
The terminal is
Receiving the determination result from the management server via the communication means, and executing change information output processing for outputting identification information of a work process having a change in the subsequent work process indicated by the determination result to an output interface;
A process management method characterized by that. The management server is
A writing instruction including work object information is received from an input interface or other terminal via the communication means, and the work process sequence corresponding to the work object is included in the process code table of the storage means and each A process for reading out the identification information of the work process, and writing the information for writing to the RFID tag attached to the work object via the reader / writer via the communication means;
A print instruction process for transmitting a print instruction to the print medium for all or a part of the writing information related to the RFID tag to the printer device via the communication means;
A printer device that is communicably connected to the management server,
The printing instruction is received from the management server, all or a part of the writing information included in the printing instruction is printed on a printing medium, and the printing medium is discharged by a transport mechanism. To
The process management method according to claim 1. The RFID tag includes a storage structure for the print medium;
The printer device performs a medium accommodation process in which the print medium for which the printing process has been completed is accommodated in the RFID tag accommodation structure by the transport mechanism.
The process management method according to claim 2. In the change information output process by the terminal,
The identification information of the work process that is changed in the subsequent work process indicated by the determination result and the confirmation request for the print content of the print medium are output to the output interface, and the work process with the change is written in the input interface. Receiving an approval instruction, and rewriting the identification information after the change for the work process that has changed in the subsequent work process to the RFID tag attached to the work object via the reader / writer via the communication means Execute,
The process management method according to claim 2 or 3, wherein The terminal is
An operation of receiving a work completion notification from an input interface or other terminal via the communication means, and writing the work completion flag associated with the identification information of the corresponding work process on the RFID tag attached to the work object. A completion setting process executed via the means and the reader / writer;
Based on the work process sequence included in the RFID tag storage information and the identification information of each work process, the identification information of the next work process of the work process that is the write process target of the work completion flag is specified, and the next work A next work process instruction process for outputting process identification information to an output interface;
The process management method according to claim 1, wherein:   The terminal receives information stored in the RFID tag from a reader / writer that has performed a reading operation on the RFID tag attached to the work object via communication means, and the work process sequence included in the received storage information includes: The identification information of each work process and the management identification information read from the storage means are collated, and the identification information of the previous work process whose order is earlier than the work process corresponding to the management identification information is specified. Each work completion flag is specified by the received storage information, and if there is a work process that does not correspond to the work completion flag in the previous work process, the identification information of the corresponding work process is output as information on the unfinished work process. 6. The process management method according to claim 5, wherein an incomplete warning process is output to the interface. The terminal is
In the change information output process, the determination result received from the management server indicates that there is no work process having a change in the subsequent work process, and the work completion flag corresponds to the previous work process in the incomplete warning process. The process management method according to claim 6, wherein the completion setting process is executed when it is determined that there is no work process not attached. Communication means for communicating with other devices;
Storage means for storing management identification information as identification information of a work process to be managed;
The storage information of the RFID tag is received via the communication means from the reader / writer that has performed the reading operation on the RFID tag attached to the work object, and the work process sequence and each work process included in the received storage information are received here. The identification information and the management identification information read from the storage means are collated, the identification information of the subsequent work process after the work process corresponding to the management identification information is specified, and the work process order of this subsequent work process And a change confirmation means for transmitting a change confirmation request including the identification information and information of the corresponding work object to the management server via the communication means,
A change information output that receives a determination result corresponding to the change confirmation request from the management server via the communication means, and outputs identification information of a work process having a change in the subsequent work process indicated by the determination result to an output interface. A terminal comprising means,
Communication means for communicating with other devices;
Storage means for storing a process code table storing work process order for each work object and identification information of each work process;
Receiving a change confirmation request from the terminal via the communication means, collating the work object information included in the change confirmation request and the work process sequence and identification information of the subsequent work process, and the process code table; A management server comprising: a determination unit that determines a work process that has changed in the process code table for the subsequent work process of the target work object, and transmits the determination result to the terminal via the communication unit; ,
A process management system comprising: Communication means for communicating with other devices;
Storage means for storing a process code table storing work process order for each work object and identification information of each work process;
A writing instruction including work object information is received from an input interface or other terminal via the communication means, and the work process sequence corresponding to the work object is included in the process code table of the storage means and each And a writing unit that reads the identification information of the work process and writes the information for writing to the RFID tag attached to the work object via the reader / writer via the communication unit;
A print instruction means for sending a print instruction to a print medium for all or part of the writing information relating to the RFID tag to the printer device via the communication means;
A change confirmation request is received from the terminal via the communication means, the work object information included in the change confirmation request, the work process sequence and identification information of a predetermined work process, and the process code table are collated, A determination unit that determines a work step that has changed in the process code table among the predetermined work steps of the target work object, and transmits the determination result to the terminal via the communication unit; and
A management server comprising: Communication means for communicating with other devices;
Storage means for storing management identification information as identification information of a work process to be managed;
The storage information of the RFID tag is received via the communication means from the reader / writer that has performed the reading operation on the RFID tag attached to the work object, and the work process sequence included in the received storage information and each work process The identification information and the management identification information read from the storage means are collated, the identification information of the subsequent work process after the work process corresponding to the management identification information is specified, and the work process order of this subsequent work process And a change confirmation means for transmitting a change confirmation request including the identification information and information of the corresponding work object to the management server via the communication means,
A change information output unit that receives a determination result corresponding to the change confirmation request from the management server via the communication unit, and outputs identification information of a work process having a change indicated by the determination result to an output interface;
A terminal comprising:   An RFID tag comprising a print medium housing structure.