JP2014002706A - Traceability management system and method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a traceability management system and method capable of collecting history information on production or maintenance in real time without imposing an excessive load on a worker.SOLUTION: A traceability management system comprises: a database 2 which stores a plurality of work processes in association with materials used in each work process; a material identification information acquiring unit 303 acquiring material identification information on a work target material from a worker terminal; a work process information transmitting unit 304 reading out information indicating a work target process related to the work target material from the database 2 on the basis of the material identification information and transmitting the information to the worker terminal; a start signal acquiring unit 308 acquiring a start signal of the work target process from the worker terminal; an end signal acquiring unit 309 acquiring an end signal of the work target process from the worker terminal; a positional information acquiring unit 305 acquiring positional information on the work target material; and a history information outputting unit 310 outputting history information on the work target material on the basis of the start and end signals and the positional information.

Description

  The present disclosure relates to a traceability management system and method for managing history information of materials in a process of manufacturing or maintaining a product.

  In recent years, the demand for traceability has increased, and the disclosure of product information such as product quality and raw materials is also required for industrial products. For this reason, in the past, inspection records and mill sheets have been submitted to customers along with products.

  Further, as information on traceability, tracking information of products and materials constituting the products is also required. Generally, in the manufacture or maintenance of a product, manufacture or repair is performed through a plurality of work processes and delivered to a customer. In particular, a product composed of a plurality of materials (including materials, parts, and intermediate products) may be manufactured or maintained across a plurality of factories scattered in various places. Materials manufactured or repaired at each factory are finally collected and assembled in one place, and the finished product is delivered to the customer. In such a case, since the materials are dispersed in various places during the manufacturing or maintenance process, it is difficult to grasp the history information of the materials.

  Although history information is not provided, Patent Documents 1 and 2 disclose a system in which a work progress stored in a server is shared by a plurality of terminals.

JP 2001-290866 A JP 2002-169996 A

  However, the systems described in Patent Documents 1 and 2 display the progress of work accumulated in the server on a plurality of terminals, and provide material history information in the process of manufacturing or maintaining products. Not what you want.

  At least one embodiment of the present invention has been devised in view of the above-described circumstances, and traceability capable of collecting history information of materials in a process of manufacturing or maintenance without imposing an excessive burden on an operator. An object is to provide a management system and method.

  A traceability management system according to at least one embodiment of the present invention is a traceability management system that manages history information of a material in a process of manufacturing or maintaining a product composed of a plurality of materials, and the process includes the process A plurality of work processes to be performed, a database in which materials used in each work process are stored in association with each other, and a worker terminal capable of inputting material identification information unique to each material, the work target among the plurality of materials Based on the material identification information acquired by the material identification information acquisition unit and the material identification information acquisition unit that acquires the material identification information of the material, a work target process involving the work target material among the plurality of work processes A work process information transmission unit that reads information to be read from the database and sends it to the worker terminal, and knows the start of the work target process A start signal acquisition unit for acquiring a start signal from the worker terminal, a completion signal acquisition unit for acquiring a completion signal notifying completion of the work target process from the worker terminal, and acquiring position information of the work target material And a history information output unit that outputs history information of the work target material in response to a request from an external terminal based on the start signal, the completion signal, and the position information.

Here, “material” includes materials constituting the product, parts, and an intermediate product formed from a plurality of parts. The “product” includes intermediate products and final products.
In the above traceability management system, multiple work processes and materials used in each work process are stored in the database in association with each other, so acquisition signals and completion signals are obtained for each work process in which each material is involved. By doing so, it becomes possible to collect data on the progress status of each of the plurality of work processes for each material.
Further, based on the material identification information of the work target material acquired from the worker terminal, the work target process related to the work target material is read from the database and sent to the worker terminal. Therefore, the work target process for which input of the start signal and the completion signal is required is identified from among a plurality of work processes stored in the database only by inputting the material identification information of the work target material to the worker terminal. In the worker terminal side, it is in a state where it is possible to grasp what the work target process is.
Furthermore, the progress information is collected by acquiring and storing the start signal and completion signal of the process from the worker terminal of the worker involved in the work target process. When collecting the progress information, the operation on the worker terminal side is already in the state where the worker terminal side can grasp what the work target process is. By only transmitting the start signal and the completion signal to the system side, it becomes possible to collect data on the progress status for each of the plurality of work processes for each material. Therefore, when collecting history information, it is possible to greatly reduce the burden on the operator.

In one embodiment, the database stores predetermined position information of each material during each work process, and the position information acquisition unit acquires the material identification information acquired by the material identification information acquisition unit. A map display unit that reads the position information of the work target material corresponding to the work target process from the database, and displays a region including the position corresponding to the position information on the worker terminal as a map; And a position information correction unit that acquires correction information related to the position of the work target material in the map from the worker terminal and corrects the position information based on the correction information.
The position information acquisition unit causes the map display unit to display a region including the position of the work target material registered in advance as a map. Here, the position of the work target material registered in advance may be different from the actual position of the work target material. Therefore, the position information correction unit corrects the position of the work target material in the map based on the correction information from the worker terminal.
As described above, by displaying the area including the position of the material registered in advance by the map display unit on the worker terminal, the approximate position of the material can be easily grasped visually. Therefore, when acquiring the position information of the work target material, it is possible to greatly reduce the burden on the worker.

In one embodiment, the work process, the start signal and the completion signal of the work process are stored in the database, the past work process stored in the database, the start signal and the completion signal. You may further provide the delivery date estimation part which estimates the delivery date of a product based on the correlation with the required time of the said work process calculated from a signal.
The database stores past work processes, and start signals and completion signals acquired in the work processes. The required time of the past work process is calculated from the start time at which the start signal is acquired and the completion time at which the completion signal is acquired, and the correlation between the past work process and the required time is accumulated in the database. By using this correlation, the time required for the work process that has not been started is estimated, and the delivery date of the product is estimated. Thus, by storing the start signal and the completion signal of the past work target process in the database, it is possible to accurately estimate the delivery date of the product.

In one embodiment, the product shares at least one work process with another type of product that is scheduled to be manufactured or maintained, and the database includes the product and the other type of product. And the time required for the product of the at least one work process shared by the product with the other type of product is stored, and the delivery date estimation unit uses the relationship to store the delivery date. May be estimated.
Usually, resources such as workers and equipment that are put into the work process are limited, and when working on multiple types of products at the same time, the time required for the work process varies depending on the allocation of resources to the target product There is a case. In other words, the presence of another type of product sharing at least one work process with the target product affects the time required for the work process of the target product. Therefore, when estimating the delivery date of a product, the combination of the target product and at least one other type of product that share at least one work process, and the work process shared by the target product between the other type of product By using the relationship with time, it is possible to further improve the estimation accuracy.

In one embodiment, the database stores a relationship between a time required for the work process and a resource including at least one of a worker and equipment to be input into the work process. The delivery date may be estimated using the relationship.
For example, even if the same work process is performed, the required time can be shortened if a large amount of resources can be input, and the required time becomes long if there are few resources. Therefore, when estimating the delivery date of the product, it is possible to further increase the estimation accuracy by using the relationship between the time required for the work process and the resource.

In one embodiment, the plurality of work processes stored in the database involve at least one value-added work process for improving the added value of the material by changing the shape or property of the material and increasing the added value of the material. The structure which divides | segments the said process by the unit of the at least 1 value-free work process which does not exist may be sufficient.
The value-added work process is a work process that improves the added value of the material by changing the shape or property of the material, and is a process such as a processing work or an assembly work. The value-added work process is a work process that does not involve added value, for example, a process of material transportation, standby, equipment preparation, and the like.
In this way, the process stored in the database is divided into a plurality of work processes in units of value-added work processes and value-added work processes, so by acquiring the start signal and completion signal of each work process Thus, it is possible to collect data on the progress of a large number of work processes divided into value-added work and value-added work. That is, it is possible to grasp for each material the detailed progress status of work processes classified by work units suitable for shortening the lead time.

In one embodiment, the material identification information stored in the database includes identification information related to the lot of the material, and the history information output unit may output information in units of the lot. .
Thus, by outputting the history information in units of lots, the amount of information can be reduced, and simplified history information can be provided. For example, even if the customer (product delivery destination) obtains history information of each material, it may be inconvenient on the contrary because the information is excessive. In such a case, by outputting the history information in units of lots, the history information is simplified and only necessary information can be provided to the customer.

  A traceability management method according to at least one embodiment of the present invention is a traceability management method for managing history information of a material in a process of manufacturing or maintaining a product composed of a plurality of materials, and the process is configured A plurality of work processes to be performed, a step of storing in advance in the database the materials used for each work process, and a worker terminal capable of inputting material identification information unique to each material, Obtaining the material identification information of the target material, and reading out from the database information indicating the work target process in which the work target material is involved among the plurality of work processes based on the material identification information, and the worker terminal Sending to the worker terminal a step signal for notifying the start of the work target process from the worker terminal, Based on the step of acquiring a completion signal for notifying the completion of the work target process from the worker terminal, the step of acquiring the position information of the work target material, the start signal, the completion signal and the position information Outputting history information of the material in response to a request from the external terminal.

According to the traceability management method described above, the work target process is read from the database based on the material identification information acquired from the worker terminal and sent to the worker terminal. Thus, the work target process for which the start signal and the completion signal are required to be input is specified, and the operator terminal side can grasp what the work target process is.
Furthermore, the operation on the worker terminal side only sends the start signal and completion signal to the system side for the work target process acquired by the input of the material identification information. Can be collected. Therefore, when collecting history information, it is possible to greatly reduce the burden on the operator.

  According to at least one embodiment of the present invention, it is possible to collect material history information in a process of manufacturing or maintenance without imposing an excessive burden on an operator. Accordingly, the traceability of the product in the manufacturing or maintenance process is established, and the history information of the material indicating the traceability can be provided in response to the request from the external terminal.

It is a schematic diagram which shows the structure of the traceability management system which concerns on embodiment of this invention, and its peripheral device. It is a figure which shows the main functions of the traceability management system which concerns on embodiment of this invention, and the flow of its processing. It is a figure which shows the structural example of an operator master. It is a figure which shows the structural example of a material master. It is a figure which shows the structural example of a work process master. It is a figure which shows the structural example of a place master. It is a figure which shows the structural example of a cost master. It is a figure which shows the structural example of a traceability file. It is a figure which shows the input screen of worker ID in a worker terminal. It is a figure which shows the display screen of the work-in-process process in an operator terminal. It is a figure which shows the input screen of material S / N in a worker terminal. It is a figure which shows the input screen of the start signal and completion signal in an operator terminal. It is a figure which shows the display screen of the map in an operator terminal. It is a flowchart which shows the processing method of the traceability management system which concerns on embodiment of this invention. It is a figure which shows an example of the display screen of the movement path | route of material. It is a figure which shows an example of the display screen of the detailed information of material. It is a figure explaining the structure relevant to the delivery date estimation process of a traceability management system. It is a figure explaining the structure relevant to the elapsed time display process of a traceability management system. It is a figure which shows the display screen of the elapsed time in a worker terminal. It is a figure which shows the display screen of the elapsed time in an administrator terminal. It is a figure explaining the structure relevant to the cost management of a traceability management system. It is a graph which shows the time-sequential transition of the cost in a process. It is a figure which shows an example of a work allocation table. It is a figure which shows the display screen which contrasted track record integrated value and target integrated value.

  Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. However, the dimensions, materials, shapes, relative arrangements, and the like of the components described in this embodiment are not intended to limit the scope of the present invention unless otherwise specified, and are merely illustrative examples. Only.

First, with reference to FIG. 1, the outline | summary of a structure of the traceability management system which concerns on embodiment of this invention, and its peripheral device is demonstrated.
Note that the traceability management system 1 according to the present embodiment manages history information regarding materials constituting the product in the process of manufacturing or maintaining the product, and in particular, the work progress status and position information of each material. For the purpose of grasping, history information including start of each work process, completion information, and material position information is collected and provided based on information acquired from the worker terminal 4. Here, the manufacturing or maintenance process is composed of a plurality of work steps. In addition, “material” includes materials constituting the product, parts, and an intermediate product formed from a plurality of parts. “Product” includes intermediate products and final products.

  As shown in FIG. 1, the traceability management system 1 includes a database 2 and a management server 3, and the management server 3 can be connected to the worker terminal 4 via a network (communication line) 10. In addition to the worker terminal 4, an administrator terminal 5 and a customer terminal 6 may be connectable to the management server 3. The database 2 may have a file server function and be installed at a location different from the management server 3, and these may be connected via a communication line such as a LAN or WAN, or the database 2 and the management server 3 may be integrated. Alternatively, a database server provided may be used. The traceability management system 1 may be installed at a work site of a production line or a repair (maintenance) line, but is usually installed at a remote management site away from the work site. A specific configuration of the traceability management system 1 will be described later.

The worker terminal 4 is carried by a worker on the production line or the repair line, and preferably a plurality of workers each carry the worker terminal 4. In some embodiments, the worker terminal 4 includes a communication unit 41 that communicates with the traceability management system 1, a display unit 42 that displays various data, and an input unit 43 that inputs various data.
The manager terminal 5 is carried by the manager of the production line or the repair line. In some embodiments, the administrator terminal 5 includes a communication unit 51 that communicates with the traceability management system 1, a display unit 52 that displays various data, and an input unit 53 that inputs various data.
The customer terminal 6 is installed at a delivery destination (customer) of a product that has been manufactured or maintained. In some embodiments, the customer terminal 6 includes a communication unit 61 that communicates with the traceability management system 1, a display unit 62 that displays various data, and an input unit 63 that inputs various data.
As the worker terminal 4 and the administrator terminal 5, for example, a portable terminal such as a tablet terminal, a smartphone, a mobile phone, or a laptop personal computer can be used. Further, the customer terminal 6 may be a mobile terminal such as a tablet terminal, a smart phone, or a mobile phone, or may be any fixed terminal including a desktop personal computer.

Here, a specific configuration of the traceability management system 1 will be described.
As shown in FIG. 1, the database 2 of the traceability management system 1 mainly includes an operator master 21, a material master 22, a work process master 23, a location master 24, and a traceability file 26. Further, the database 2 may have a cost master 25. In addition to the master file, the database 2 may include a rewritable transaction file in addition to the master file storing other basic data or the traceability file 26.

  FIG. 3 is a diagram illustrating a configuration example of the worker master 21. The worker master 21 stores information related to a plurality of workers as information related to the worker for each worker. Examples of items (fields) constituting one record include worker ID, name, affiliation, authority, and the like. The worker ID is worker identification information unique to the worker. The authority indicates the ability of the worker such as the skill and acquisition skill of the worker, the job type of the worker (for example, the type of job such as a mechanic, a welder), etc. It is used when determining whether or not the worker can be engaged. Further, the database 2 may be provided with a rewritable worker performance file (not shown) associated with the worker master 21, and the work-in-progress work, completion work, etc. of the worker stored in this file are stored as needed. It may be updated.

  FIG. 4 is a diagram illustrating a configuration example of the material master 22. In the material master 22, information related to a plurality of materials is stored as information related to the material for each material as one record. Examples of items constituting one record include a material serial number (material S / N), an order, a drawing number, a BOM number, a raw material S / N, and a work process. In addition, the material master 22 may include items such as an orderer, a material, and a manufacturing method. The material S / N is material identification information unique to the material. The order specifies a customer or a manufacturing instruction such as an order number or a manufacturing order number, and may be a number indicating a lot. The drawing number is the drawing number of the design drawing in which the material is used. The BOM number is a number assigned in the parts configuration table (BOM). The raw material S / N is each serial number of a plurality of materials as a basis when the material registered in the record is composed of a plurality of materials. The work process code is information for identifying a work process in which the material registered in the record is used. Furthermore, a rewritable material file associated with the material master 22 may be provided, and the material arrival status, material processing status, etc. may be accumulated and updated as needed.

  FIG. 5 is a diagram illustrating a configuration example of the work process master 23. The work process master 23 stores information related to a plurality of work processes as information related to each work process as one record. Items constituting one record include, for example, work order, work process name, work process code, standard time, code indicating a place / area (place / area code), equipment used, prohibited items, and the like. In addition, the work process master 23 may include items such as a group of workers who perform the work. The work order is the order of each process set in advance. For example, when the work process registered in the record is the work process A, “the work process A is performed after the work process B and the work process A is performed after the work process A”. Conditions relating to the order of work processes such as “perform process C” are registered. The work process name is the name of a work process such as roughing, polishing, and transportation. The work process code is a letter, number, or symbol that identifies the work process. As for the standard time, a standard time required for the work process is statistically obtained from past actual values or estimated in advance by various calculations, and the time is registered. The place / area code is information for identifying an area where a work process is performed and a specific place in the area. These may be registered as absolute position information such as latitude and longitude, or may be registered as a position name on a preset map. In this case, the location / area item of the work process master 23 may store information for associating the work process with the corresponding place / area in the place master 24. The equipment used is equipment such as a processing machine or a transport vehicle used in the work process. The equipment rate is an hourly unit price of equipment used, and includes, for example, equipment depreciation. Furthermore, the equipment rate may include the unit price of time spent for maintenance such as labor costs and material costs. Registered in the prohibited item is the skill of the worker required for the work (for example, the skill corresponding to the authority of the worker master). Details of the prohibited items will be described later.

Here, each work process registered in the work process master 23 is a value-added work process for improving the added value of the material by changing the shape or property of the material and a non-added process that does not accompany the added value of the material. It may be composed of units of value work processes. That is, processes such as machining, cutting, polishing, and assembly that change the shape or properties of materials are classified as value-added work processes as work that improves the added value. On the other hand, processes such as material transportation, standby, and equipment preparation that do not change the shape or properties of the material are classified as non-value-added work processes that do not involve added value.
In this way, if the process stored in the database is divided into a plurality of work processes in units of value-added work processes and value-added work processes, by acquiring the start signal and completion signal of each work process, Thus, it is possible to collect data on the progress of a large number of work processes divided into value-added work and value-added work. That is, it is possible to grasp for each material the detailed progress status of work processes classified by work units suitable for shortening the lead time.

  FIG. 6 is a diagram illustrating a configuration example of the location master 24. The location master 24 stores location information of materials in the map display area. Specifically, the map display area is divided into a plurality of areas by latitude and longitude, and the place master 24 includes a place / area code for identifying each area, position information of the place / area code, and the area. The material S / N indicating the material located at is stored. The location information of the place / area code may be, for example, the coordinates of the latitude and longitude of the four corners of the area. In addition, the material S / N may not be stored in the location master 24, and the material S / N and the location / area code may be associated with each other and stored in another file. In this case, the location master is stored using the location / area code as a key. The position information corresponding to the material S / N can be extracted from 24.

  FIG. 7 is a diagram illustrating a configuration example of the cost master 25. The cost master 25 stores equipment used, equipment rate, and equipment information. The used equipment is information identifying the name of the equipment to be used or the equipment. The equipment rate may indicate the cost per unit time consumed by the operation of the equipment or the value that the equipment should generate per unit time. The equipment information is attribute information regarding the equipment used. The cost master 25 may include other costs such as maintenance costs. This cost master 25 is mainly used when the profitability of the line is evaluated by a result integrated value calculation unit 322 described later.

  FIG. 8 is a diagram illustrating a configuration example of the traceability file 26. The traceability file 26 stores information related to a plurality of materials in a rewritable manner as related information for each material as one record. Examples of items constituting one record include material S / N, work process code, worker ID, start time, completion time, material position information, and the like. The material S / N is material identification information unique to the material, and the same S / N as that of the material master 22 is used. The work process code is information for identifying the work process, and the same code as the work process master 23 is used. The worker ID stores the worker ID of the worker who actually performed the work process. In the start time and completion time, the time when the start signal and completion signal of the work process are acquired is stored. In the material position information, position information where the work process is performed on the material is stored. Information stored in the traceability file 26 is accumulated and updated as needed by data acquired from the worker terminal 4.

  As shown in FIG. 1, the management server 3 of the traceability management system 1 performs various arithmetic processes with a communication unit 31 that communicates with the worker terminal 4, the manager terminal 5, and the customer terminal 6, as shown in FIG. The processing unit 32 and the storage unit 33 that stores information acquired from the worker terminal 4 are included. The processing unit 32 includes a CPU that performs each process according to a given program, and each function (each unit) of the processing unit 32 illustrated in FIG. 2 is realized by the CPU performing a process according to the given program. . The storage unit 33 includes a RAM, a computer-readable recording medium, and the like. Furthermore, you may have the input part 34 which performs the data input to the database 2, a data correction, etc., and the display part 35 which displays various data.

Here, each function of the processing unit 32 will be described with reference to FIG. FIG. 2 is a diagram showing the main functions of the traceability management system according to the embodiment of the present invention and the flow of the processing. In some embodiments, the main function of the traceability management system is a function of collecting and outputting material history information.
As shown in FIG. 2, the processing unit 32 mainly includes an operator identification information acquisition unit 301, an in-process operation process display unit 302, a material identification information acquisition unit 303, a work process information transmission unit 304, and position information. An acquisition unit 305, a start signal acquisition unit 308, a completion signal acquisition unit 309, and a history information output unit 310 are included.

The worker identification information acquisition unit 301 acquires worker identification information (hereinafter referred to as worker ID) from the worker terminal 4. Here, as an example, a worker ID acquisition method when the portable terminal shown in FIG. 9A is used as the worker terminal 4 will be described. The worker terminal 4 includes a touch panel display unit 42 that also serves as the input unit 43, a camera 45, and a power switch 46. The worker holds an ID card on which a barcode of the worker ID is printed, and the worker ID is recognized by reading the barcode with the camera 45. Instead of the barcode, another two-dimensional code such as a QR code (registered trademark) may be used. Moreover, you may acquire by RFID using an IC tag instead of a barcode. As another method, as shown in FIG. 9B, when the barcode cannot be read by the camera 45 or when the worker terminal 4 does not have the camera 45, the worker ID is assigned to the worker terminal 4. You may enter directly from In this case, a login input screen is first displayed on the display unit 42. On this input screen, an operator ID input field 402, a password input field 403, and a numeric key 404 are displayed. By inputting the worker ID and password from the numeric key 404, the worker ID is recognized. .
Then, the worker ID is transmitted from the communication unit 41 of the worker terminal 4 to the management server 3. The management server 3 acquires the worker ID from the worker terminal 4 via the network 10. Furthermore, worker information (for example, a worker's name and affiliation) associated with the worker ID may be read from the worker master 21 and transmitted to the worker terminal 4 to be displayed.

  The work-in-process display unit 302 reads out the work in progress of the worker stored in the database 2 (for example, a worker performance file) based on the worker ID acquired from the worker terminal 4 and displays it on the worker terminal 4. Let FIG. 10 shows an example of the display unit 42 of the worker terminal 4 that displays the work in progress. The display unit 42 displays a list 406 of workers' work in progress transmitted from the administrator server 3 based on the worker ID. Further, as described above, the worker information 405 transmitted from the management server 3 based on the worker ID may be displayed at the same time.

The material identification information acquisition unit 303 acquires material identification information (hereinafter referred to as material S / N) from the worker terminal 4. Here, as an example, a material S / N acquisition method when the portable terminal shown in FIG. 11 is used as the worker terminal 4 will be described. The configuration of the worker terminal 4 is the same as that in FIG. Each material is affixed with a material seal on which the barcode of the material S / N is printed. Instead of the barcode, another two-dimensional code such as a QR code (registered trademark) may be used. Moreover, you may acquire by RFID using an IC tag instead of a barcode. Further, when it is difficult to attach a material seal to a material, a tag printed with a barcode may be bound to the material. The material S / N is recognized by photographing and reading this barcode with the camera 45 of the worker terminal 4. As another method, when the barcode cannot be read by the camera 45 or when the worker terminal 4 does not include the camera 45, the material S / N may be directly input from the worker terminal 4.
Then, the material S / N is transmitted from the communication unit 41 of the worker terminal 4 to the management server 3. In the management server 3, the material S / N is acquired from the worker terminal 4 via the network 10.

  Based on the material S / N acquired by the material identification information acquisition unit 303, the work process information transmission unit 304 operates information indicating a work target process to be started / completed next by the work target material among a plurality of work processes. The data is read from the process master 23 and transmitted to the worker terminal 4. FIG. 12 shows an example of the display unit 42 of the worker terminal 4 that displays the work process information. In the management server 4, based on the material S / N, the work process name of the work target process in which the corresponding material is used is transmitted to the worker terminal 4. In the worker terminal 4, the work process name of the work target process is displayed on the display unit 42. At this time, when working with a plurality of materials, the worker terminal 4 continuously recognizes the material S / N of other materials and transmits it to the management server 3. The management server 3 reads out a work process corresponding to the other material S / N from the material master 23 and transmits it to the worker terminal 4. Therefore, a plurality of work process names are displayed on the display unit 42 of the worker terminal 4 as the work list 410 of the work list.

The position information acquisition unit 305 acquires position information of the work target material. As an embodiment, the position information acquisition unit 305 may include a map display unit 306 and a position information correction unit 307. The map display unit 306 reads the position information of the work target material corresponding to the work target process from the database 2 based on the material S / N acquired by the material identification information acquisition unit 303, and displays the position corresponding to the position information. The area to be included is displayed on the worker terminal 4 as a map. The position information correction unit 307 acquires correction information related to the position of the work target material in the map from the worker terminal 4 and corrects the position information of the work target material based on the correction information.
Specifically, as shown in FIG. 13, the map display unit 306 reads position information related to the position 432 of the work target material from the location master 24 based on the material S / N acquired by the material identification information acquisition unit 303, An area including the position 432 is displayed as a map 431 on the display unit 42 of the worker terminal 4.

  The position information correction unit 307 acquires the correction information of the position 432 of the work target material in the map 431 from the worker terminal 4. Specifically, in the case of the touch panel type display unit 42, an accurate position 432 of the work target material in the map 431 is obtained by tapping (for example, long pressing) the actual work target material position 432 in the map 431. To do. As position acquisition means, the map 431 is provided with the position coordinates (for example, longitude and latitude coordinates) of the edge of the displayed area, and the displayed area is further divided into a grid pattern. Coordinates obtained from the position coordinates of the end portions are assigned to the partitioned areas. When a certain position 432 in the map 431 is tapped, the position coordinates of the area are transmitted to the management server 3, and the management server 3 stores the position coordinates in the traceability file 26 as the corrected position information of the material.

  Further, the position information correction unit 307 may acquire the GPS position information of the worker terminal 4 together with the acquisition of the correction position information described above, and use the GPS position information for confirmation of the correction position information of the material. Specifically, the worker terminal 4 is equipped with a GPS function, and the worker terminal 4 also acquires GPS position information when registering the corrected position information. The position information correction unit 307 compares the GPS position information acquired from the worker terminal 4 via the communication line 10 with the corrected position information, and determines whether or not the corrected position information is accurate. When the GPS position information and the corrected position information are greatly deviated from each other, the correction position information is not stored in the database 2 and the operator terminal 4 is notified to reconfirm the corrected position information. Good.

  The start signal acquisition unit 308 acquires a start signal notifying the start of the work target process from the worker terminal 4. For example, as shown in FIG. 12, a start button 413, a completion button 414, and a transport button 415 are displayed on the display unit 42 of the worker terminal 4. The worker selects one work target process to be started from the work list 410 in the work list and presses a start button 413. As a result, the work target process and its start signal are transmitted to the management server 3. At this time, on the worker terminal 4, the work target item being started may be displayed separately from others, or the details of the work target item being started may be displayed. The management server 3 acquires a start signal via the network 10 and stores the corresponding work target process and work target material and the time when the start signal is acquired in the database 2. It should be noted that the transport button 415 is pressed when starting to transport the material and when it is completed in the work process of transporting the material. Of course, the transport button 415 may not be displayed. In this case, the transport operation process transmits the start signal and the completion signal to the management server 3 using the start button 413 and the completion button 414 in the same manner as other work processes. .

The completion signal acquisition unit 309 acquires a completion signal that notifies the completion of the work target process from the worker terminal 4. For example, in the display unit 42 shown in FIG. 12, the worker presses the completion button 414 in a state where the work target process being worked is displayed. As a result, the work target process and its completion signal are transmitted to the management server 3. The management server 3 acquires a completion signal via the network 10 and stores the corresponding work target process and work target material and the time when the completion signal is acquired in the traceability file 26 of the database 2.
Further, the completion signal acquisition unit 309 may accept a completion signal from the worker terminal 4 only when the material S / N is recognized again. In this case, the worker presses the completion button 414 after reading the barcode of the material S / N at the worker terminal 4 as in the case of starting. As a result, it is possible to prevent an unauthorized completion signal from being transmitted, and to acquire accurate information.
As the start time or completion time, the time when the start button 413 or the completion button 414 is pressed on the worker terminal 4 may be acquired by the clock on the worker terminal 4 side and transmitted to the management server 4. Since there is a possibility that the clock of the terminal 4 is shifted, the time when the management server 4 acquires the start signal or the completion signal from the worker terminal 4 is acquired and stored using the clock on the management server 4 side. Is preferred.

The history information output unit 310 outputs traceability information of the work target material to the external terminal in response to a request from the external terminal based on the start signal, the completion signal, and the position information. The external terminal may be the worker terminal 4, the administrator terminal 5, or the customer terminal 6, or may be another terminal that can be connected to the network 10 and has permission to access the management server 3.
Further, for the purpose of simplifying the history information provided to the external terminal, identification information (for example, order) relating to the lot of material is stored in the material master 22 of the database 2, and the history information output unit 310 stores the lot unit. The information may be output by.

Next, an example of the traceability management method according to the present embodiment will be described with reference to FIG. In the following, the processing of the management server 3, the worker terminal 4, and the customer terminal 6 will be described, but only the processing of the management server 3 is shown in FIG.
When starting the work, the worker takes a barcode indicating his / her worker ID with the camera 45 of the worker terminal 4, recognizes the worker ID, and transmits it to the management server 3. The management server 3 acquires the worker ID from the worker terminal 4 via the network 10 by the worker identification information acquisition unit 301 (S1). When acquiring the worker ID, the management server 3 notifies the worker terminal 4 that the login state has been entered (S2). At the same time, worker information corresponding to the acquired worker ID is read from the worker master 21 and transmitted to the worker terminal 4 (S3). At this time, the work-in-process step corresponding to the worker ID may be read from the database 2 by the work-in-process display unit 302, and the work in process along with the worker information may be transmitted to the worker terminal 4 (S4). The display unit 42 of the worker terminal 4 displays worker information such as a worker ID and a name, and an in-process work process of the worker himself as necessary.

Next, the worker photographs the barcode of the material S / N of the work target material with the camera 45 of the worker terminal 4, recognizes the material S / N, and transmits it to the management server 3. The management server 3 acquires the material S / N from the worker terminal 4 via the network 10 by the material identification information acquisition unit 303 (S5). The management server 3 reads the material information corresponding to the acquired material S / N from the material master 22, further reads the work process information corresponding to this material information from the work process master 23, and transmits it to the worker terminal 4 (S6). ). The work target process corresponding to the work target material is displayed on the display unit 42 of the worker terminal 4.
The worker transmits a start signal to the management server 3 by pressing the start button 413 of the work target process displayed on the display unit 42 of the worker terminal 4. The start signal acquisition unit 308 of the management server 3 acquires the work target process and the start signal, and stores them in the database 2 in association with the acquired time (S7).

Here, the worker performs the work of the work target process. When the work is carried over on the next day or the like in a state where the work is not completed, the worker terminal 4 may log out without transmitting a completion signal. When another worker takes over the work, the handed over worker may complete the work.
When the work of the work target process is completed, the worker captures the barcode of the material S / N again with the camera 45 of the worker terminal 4 to recognize the material S / N, and then is displayed on the display unit 42. Press button 414. The completion signal acquisition unit 309 of the management server 3 stores the work target process and the time when the completion signal was acquired in association with each other in the traceability file 26 of the database 2 (S8).

Further, the management server 3 acquires the position information of the material corresponding to the material S / N (S9). Specifically, the management server 3 reads the position information of the material corresponding to the material S / N from the material master 22 by using the map display unit 306, and sets an area including the position 432 indicated by the position information of the material as the map 431. It is displayed on the display unit 42 of the worker terminal 4. And the correction information regarding the position 432 of the work target material in the map 431 is acquired from the worker terminal 4 by the position information correction unit 307, and the position information of the work target material is corrected based on the correction information. The corrected position information is stored in the traceability file 26.
Note that either the acquisition of the work process start signal and completion signal and the acquisition of position information may be performed first, and the processing order is not limited.

When there is a history information request from the customer terminal 6, the history information stored in the traceability file 26 is output to the customer terminal 6 (S10). The history information request may be configured to request history information of a desired material by inputting the material S / N from the customer terminal 6. At this time, the material S / N may be input directly from the keyboard, or the material S / N card on which a two-dimensional code such as a barcode or QR code (registered trademark) is printed is read by the camera. The material S / N may be input.
Thus, the traceability of the product can be grasped from the history information of the material output to the customer terminal 6.

An example of the history information displayed on the customer terminal 6 is shown in FIGS. FIG. 15 is a diagram illustrating an example of a display screen for a material movement route, and FIG. 16 is a diagram illustrating an example of a detailed material information display screen.
As shown in FIG. 15, the material movement route may be displayed on the map on the display unit 62 of the customer terminal 6 based on the position information of the material stored in the traceability file 26. Here, since the traceability file 26 stores the position information of the material and the start time and completion time of the work process in which the material is used, it is displayed how the material has moved on the map. be able to. At this time, the movement paths of a plurality of materials (for example, material A and material B) constituting the product may be simultaneously displayed on the map.
Further, as shown in FIG. 16, detailed information regarding the traceability of the material may be displayed. For example, date, work process, start time, completion time, position information, and the like are displayed as detailed information of the material A.
Although the case where the history information request is made from the customer terminal 6 has been described here, the history information request can also be made from another external terminal such as the worker terminal 4 or the administrator terminal 5.

As described above, according to the above-described embodiment, it is possible to collect data relating to the progress status for a plurality of work processes in real time for each material.
In addition, since the work target process is read from the database 2 based on the material S / N acquired from the worker terminal 4 and sent to the worker terminal 4, a large number of work processes stored in the database 2 are selected. The work target process for which input of the start signal and the completion signal is required is specified, and the worker target 4 side can grasp what the work target process is.
Furthermore, the operation on the worker terminal 4 side simply transmits the start signal and the completion signal to the system side for the work target process acquired by the input of the material S / N. It can be collected for each material. Therefore, it is possible to greatly reduce the burden on the worker.
Furthermore, since the history information is output to the external terminal based on the start signal, the completion signal, and the position information, the history information including the material movement route can be provided in real time according to the request of the external terminal. .

  The traceability management system 1 according to the present embodiment may include the following configuration in addition to the above configuration.

In one embodiment, FIG. 17 shows a configuration in the case of performing delivery date estimation processing using the traceability management system 1. The delivery date estimation process is performed after collecting history information as described above.
As shown in the figure, the traceability management system 1 may further include a delivery date estimation unit 311.
The delivery date estimation unit 311 responds to a delivery date request from an external terminal such as the administrator terminal 5 or the customer terminal 6 and the past work process stored in the traceability file 26 of the database 2 and the start acquired for the work process. The delivery date of the product is estimated based on the correlation with the time required for the work process calculated from the signal and the completion signal. At this time, the average required time is calculated for each work process based on the past work process and the required time, and the work that has not been started using the relationship file 27 in which the correlation between the work process and the average required time is set. The time required for the process may be estimated to estimate the delivery date of the product.
In this manner, by storing the start signal and the completion signal of the past work target process in the database 2, it is possible to accurately estimate the delivery date of the product.

In addition, when there is a plan to manufacture or maintain a plurality of types of products having a common work process, the relation file 27 of the database 2 stores other types of products that share at least one work process with the target product and the target product. The relationship between the combination of products and the time required for the work process that the target product shares with the other types of products is stored, and the delivery date estimation unit 311 uses this relationship to estimate the delivery date of the product. Also good.
In this way, when estimating the delivery date of a product, a work process shared by the target product between the combination of the target product and other types of products sharing at least one work process and the other types of products. It is possible to further improve the estimation accuracy by using the relationship with the required time.

Furthermore, the relationship file 27 of the database 2 stores the relationship between the time required for the work process and the resources including the workers and equipment that are input to the work process, and the delivery date estimation unit 311 stores this relation. It may be used to estimate the delivery date of the product.
As described above, when estimating the delivery date of the product, it is possible to further improve the estimation accuracy by using the relationship between the time required for the work process and the resource.

In addition, in the delivery date estimation of a product, you may use combining the above-mentioned method. Specifically, as parameters affecting the delivery date of a product, a plurality of parameters including work contents of work processes, product combinations, and resources input to the work processes can be considered. Therefore, the degree of influence of these parameters on the delivery date is obtained by calculation, and the delivery date of the product is estimated using the relationship between the parameter having a high degree of influence and the time required for the work process. The degree of influence of the parameters on the delivery date can be obtained by, for example, a multiple regression analysis method, an MT method (Mahalanobis Taguchi) method, or the like. That is, a function f (X ₁ ,... X _N ) indicating a correlation between a parameter X _i (i = 1 to N; where N is an integer of 1 or more) that affects the delivery date of the product and the delivery date T of the product. It may be obtained by a known method such as a multiple regression analysis method or an MT method (Mahalanobis-Taguchi) method, and the delivery date may be predicted using the function.

In one embodiment, FIGS. 18 to 20 show a configuration in the case where the elapsed time display process is performed using the traceability management system 1.
FIG. 18 is a diagram illustrating a configuration related to the elapsed time display process of the traceability management system. The elapsed time display process is performed after acquiring the start signal and the completion signal.
As shown in the figure, the traceability management system 1 may further include a work time display unit 312.
The work time display unit 312 acquires the start time of the work target process from the worker terminal 4 and measures the elapsed time from the start time using a timer or the like. In the work process master 23, the standard time of the work target process is registered in advance. This standard time may be obtained statistically from past performance values, or may be estimated by various calculations. As shown in FIG. 19, the work time display unit 312 displays the elapsed time of the work target process on the display unit 42 of the worker terminal 4 in comparison with the standard time read from the work process master 23. The elapsed time may be displayed by a gauge 421 that extends with the passage of time. In addition to the gauge, the elapsed time may be displayed as a numerical value. The display unit 42 may also display the work content 420 of the work process currently underway.

Further, the elapsed time gauge 421 may be displayed in different colors according to the ratio of the elapsed time to the standard time. For example, a green gauge 421 is displayed when the elapsed time is less than 80% with respect to the standard time, a yellow gauge 421 is displayed when the elapsed time is 80% or more and less than 100%, and a red color is displayed when the elapsed time is 100% or more. The gauge 421 is displayed. The display of the elapsed time by the work time display unit 312 is continued until a completion signal is acquired. In addition, when the work is interrupted in progress, a function to temporarily stop counting the elapsed time by displaying a work interruption button and pressing this button, or by logout operation of the worker terminal 4 is provided. May be.
In this way, the work time display unit 312 displays the elapsed time from the start time on the display unit 42 of the worker terminal 4 in comparison with the standard time, so that the worker can objectively determine his work efficiency. can do.

As shown in FIG. 20, the work time display unit 312 is displayed on the display unit 52 of the manager terminal 5 by a work target process 422, worker information 423 working on the work target process, and the worker's information. The elapsed time 424 of the work target process may be displayed. Also in this case, the elapsed time 424 of the work target process is displayed on the display unit 52 of the administrator terminal 5 in comparison with the standard time. The display unit 52 can display a plurality of work target processes 422, worker information 423, and elapsed time 424 for each worker requested to the management server 3 in parallel.
In this way, the work time display unit 312 displays the execution work target process 422 for each worker and the elapsed time 424 compared with the standard time, so that work can be performed even at a place away from the worker. The manager can objectively grasp the work efficiency of the worker.

In one embodiment, FIGS. 21 to 24 show a configuration in the case where cost management is performed using the traceability management system 1.
FIG. 21 is a diagram illustrating a configuration related to cost management of the traceability management system.
As shown in the figure, the traceability management system 1 further includes a cost calculation unit 320, a cost display unit 321, a performance integrated value calculation unit 322, a target integrated value calculation unit 323, and a comparison display unit 324. Also good. Here, the work process includes an added value work process and a non-value added work process.

The cost calculation unit 320 calculates the cost consumed up to the present time from the cost of the material, the start signal and the completion signal, and the equipment rate. Specifically, the processing cost obtained by multiplying the work cost calculated from the start signal and the completion signal by the equipment rate is added to the cost of the material. At this time, when a plurality of work processes are completed, all the machining costs of the plurality of work processes are added. Thereby, the cost consumed up to the present time can be calculated in real time.
The cost display unit 321 displays the cost calculated by the cost calculation unit 320 on the external terminal. The external terminal may be the worker terminal 4, the administrator terminal 5, or the customer terminal 6, or may be another terminal that can be connected to the network 10 and has permission to access the management server 3.

  For the purpose of evaluating the profitability of the production line, the actual integrated value calculation unit 322 calculates the sum of the cost required for purchasing materials and the machining cost of each work process from the start signal and completion signal acquired for each work process. Calculate the integral value. FIG. 22 is a graph showing the time series transition of costs, where the vertical axis indicates the cost and the horizontal axis indicates the time. This graph was created based on the concept of J-cost theory. The situation where the material flows through the production line from the first process, the second process, the third process, etc., and how much time each process took. Is drawn. From the idea that the cost of manufacturing is only worth selling once it is sold, the vertical axis shows how the cost was injected into the product as it goes through the process. Specifically, the cost at the start of each work process or the cost at the completion of the previous work process is plotted, and the cost at the completion time is added to the cost at the start time. Then, a graph is created by connecting these plots with a straight line. In this embodiment, each work process is composed of units of value-added work processes and non-value-added work processes. Therefore, in a value-added work process, it becomes a line segment inclined downward due to processing and assembly costs. In the value-added work process, there is no change in cost and a horizontal line segment. For example, when material transportation work is performed in the first process of the production line, this is a value-added work, so there is no cost fluctuation in the first process, and the vertical axis is drawn horizontally with the material cost a. It is burned. Next, when a material cutting operation is performed in the second step, since this is an added value operation, the cutting cost is expended and the line is inclined downward. That is, the cost a is plotted at the start of the second step, and the value obtained by adding the machining cost b to the material cost a is plotted at the completion of the process, and the plots are connected by a straight line. Therefore, the line segment is inclined downward with the processing cost with respect to time as the inclination. The processing cost b can be calculated from cost information such as the equipment rate stored in the cost master 25 shown in FIG.

  The area of the region surrounded by the graph created in this way (the portion indicated by hatching in the figure) is the time integral value of the sum of the cost of the material and the machining cost of each work process. It can be said that the smaller the time integration value, the higher the profitability of the production line. The line segment sloping downward in the value-added work process is an increase in cost that leads to profits. On the other hand, the horizontal line segment of the non-value-added work process does not lead to profits, but the material has already been added with the cost by the cost or the work process in the previous stage, and the added value is inherent. If the time elapses in this state, a loss occurs from the viewpoint of profits by the elapsed time. Therefore, it is desirable to take measures to improve the work procedure and the environment so that the time integral value is as small as possible, that is, to reduce the time required for the value-added work process. Thus, by calculating the time integral value of the added value of each material, it is possible to numerically evaluate the profitability of the entire production line.

The target integrated value calculation unit 323 calculates the target integrated value based on the equipment rate stored in the cost master 25 of the database 2 and the standard time of each work process stored in the work process master 23. Thereby, the target integrated value corresponding to the above-described actual integrated value is calculated.
At this time, the target integrated value may be calculated using the work assignment table shown in FIG. The work allocation table is a work plan in which, for each work process, the number of materials that can be processed per day is obtained from the standard time for processing one material, and this is applied to the work schedule. For example, in FIG. 23, assuming that there are 15 materials per lot and work process A has 5 materials that can be processed per day, to process all 15 materials per lot It takes 3 days. It is assumed that work process B is performed from materials that have completed work process A. If work process B has three materials that can be processed per day, work process B is delayed one day from the start date of work process A. Once started, work process B takes 5 days to process all materials. Furthermore, when the number of materials that can be processed per day in the work process C is 10, the work process C is started from the end date of the work process B so that the work process C can be performed continuously for two days, for example. The work assignment table is associated with a place for each work process, and schedules for the work processes are set so as to satisfy a constraint condition such as whether the work can be performed simultaneously. In this way, a work assignment table can be created by creating a work schedule using the standard time so as to satisfy the constraint given to the work process. Then, the target integrated value calculation unit 323 assumes that the work proceeds along the work assignment table, and the work schedule determined in the work assignment table, and the equipment rate stored in the cost master 25 of the database 2 Is used to calculate the target integrated value.

  The comparison display unit 324 compares the target integrated value calculated by the target integrated value calculation unit 323 with the actual integrated value calculated by the actual integrated value calculation unit 322, and displays the result on the external terminal. The external terminal may be the worker terminal 4, the administrator terminal 5, or the customer terminal 6, or may be another terminal that can be connected to the network 10 and has permission to access the management server 3. As an example, FIG. 24 shows a display screen in which the actual integrated value and the target integrated value are compared. Here, the case where each integrated value is displayed on the display unit 62 of the customer terminal 6 is shown. On the display unit 62, a time series transition graph 621 of actual costs and a time series transition 623 of the target costs are displayed in comparison. Further, the area represented by hatching in the actual cost graph 621, that is, the actual integrated value and the actual actual cost (vertical axis) at the present time may be displayed numerically. Similarly, the area represented by hatching in the target cost graph 523, that is, the target integrated value and the current target cost (vertical axis) may be displayed numerically. In this way, by displaying the target integrated value and the actual integrated value in comparison with each other, it is possible to easily grasp which work process is low in efficiency and to improve the cost.

With reference to FIG. 21, an example of a processing flow when performing cost management will be described. This processing flow is performed after obtaining the start signal and the completion signal shown in FIG.
When the cost display request is received from the customer terminal 6, the cost calculation unit 320 of the management server 3 receives the start time corresponding to the work process from the traceability file 26 for each work process that has received both the start signal and the completion signal. The completion time is extracted, and the actual work time of each work process is calculated from these start time and completion time. At this time, if the actual work time is already stored in the traceability file 26, this may be used. Further, the equipment rate corresponding to each work process is extracted from the cost master 25. For example, the work process which acquired the start signal and the completion signal is selected from the work process master 23, and the equipment rate corresponding to the work process is extracted from the cost master 25 using the used equipment as a key. Then, the machining cost in each work process is calculated from the actual work time and the equipment rate, and the cost consumed up to the present time is calculated from the total of these machining costs and the material cost. The material cost may be stored in advance in a material cost master (not shown), or may be input from the input means 53 of the administrator terminal 5 or the like. Then, the cost display unit 321 displays the cost calculated by the cost calculation unit 320 on the display unit 52 of the administrator terminal 5.

When the accumulated value request is received from the customer terminal 6, the actual accumulated value calculation unit 322 of the management server 3 starts the start time and completion from the traceability file 26 for each work process that has received both the start signal and the completion signal. Extract the time. Then, an actual integrated value is calculated which is a time integrated value of the sum of the processing cost of each work process calculated from the extracted start time and completion time and the equipment rate extracted from the cost master 25 and the cost of the material. .
Further, the target integrated value calculation unit 323 calculates a machining cost based on the standard time extracted from the work process master 23 and the equipment rate, and a target consisting of a time integrated value of the sum of the machining cost and the material cost. Calculate the accumulated value. At this time, the target integrated value may be calculated using a production allocation table obtained from the standard time of each work process. Then, the comparison display unit 324 causes the display unit 52 of the administrator terminal 5 to display the actual integration value calculated by the actual integration value calculation unit 322 and the target integration value calculated by the target integration value calculation unit 323. Using the accumulated value displayed in this way, the profitability of the manufacturing process can be evaluated. Specifically, if the actual integrated value is larger than the target integrated value, the profitability of the production line is low, and if the actual integrated value is small, it can be evaluated that the profitability is high. Furthermore, since the actual and target integrated values are evaluation indicators of profitability that include both time and cost concepts, comparing these to evaluate profitability from both time and cost perspectives. Can do. That is, when the actual integrated value and the target integrated value are displayed in a graph as shown in FIG. 24, it is easy to determine which work process has time loss or which work process consumes a lot of processing cost. It is possible to judge.

The management server 3 may have an image information acquisition unit (not shown). In this case, as shown in FIG. 13, the display unit 42 of the worker terminal 4 includes a shooting button 433 for performing shooting and a camera shooting region display unit 435 for displaying a shooting region before the shooting button 433 is pressed. Is provided.
The image information acquisition unit 322 acquires image information of the work target material photographed by the worker terminal 4. The image information of the photographed work target material is stored in the database 2 together with the position information or the corrected position information of the work target material corresponding thereto.
In this way, by storing the image information of the actually photographed work target material in the location master 24 together with the position information or the corrected position information of the work target material, the worker actually handles the work target material at the manufacturing site. A remote administrator or customer can confirm whether or not Further, even when erroneous position information is stored due to an operator registration error or the like, it is possible to easily find an error by checking the image information, and it is also possible to grasp an accurate position from the image information.
Furthermore, even when the work target material is defective, image information obtained by photographing the work target material may be stored in the database 2 in association with the material ID. Thereby, other workers such as a work manager who is away from the work target material can also grasp the state of the material.

  Furthermore, the management server 3 may have a warning unit (not shown) that issues a warning to the worker terminal 4 when the prohibited item falls under the information input from the worker terminal 4. The prohibited item is stored in the work process master 23 and is information regarding at least one of the skill of the worker, the number of workers, and the simultaneous execution status with other work processes, which are determined for each work process. When the prohibited item is the skill of the worker defined for each work process, the skill of each worker is registered in the worker master 21 and the work process master 23 defines the work skill. The skill of the worker is registered. The worker's skill read from the worker master 21 based on the worker ID is compared with the worker's skill read from the work process master 23 based on the material S / N. When the worker who performs the work does not reach the skill of the worker required for performing the work process, the warning unit issues a warning.

When the prohibited item is the number of workers, the work process master 23 registers the upper limit number or the lower limit number of workers for each work process. Then, when the work process is read based on the material S / N, the number of workers who are undertaking the work process is compared with the upper limit number or the lower limit number of workers read from the work process master 23. If this condition is not met, a warning is issued from the warning section. When the prohibited item is the simultaneous execution status with other work processes, the work process master 23 registers conditions that cannot be executed simultaneously for each work process. For example, when the condition that the simultaneous execution of other work processes is impossible is set for the work target process read from the material S / N, When the worker has already performed another work target process, a warning is issued from the warning unit. The warning by the warning unit is performed by displaying the warning screen on the display unit 42 of the worker terminal 4 or by emitting a warning sound from the output unit of the worker terminal 4. Furthermore, when the work order is registered in the work process master 23, the order of the work target processes may be added to the prohibited items. If the order of the work target processes to be performed is incorrect, the warning unit Issue a warning. In addition, the order of work processes may be set as a prohibited item. For example, the management server 3 normally transmits a work process corresponding to the material identification information acquired from the worker terminal 4 to the worker terminal 4, but other work processes to be performed before this work process are performed. If not, an alarm is issued from the alarm unit to inform the worker that the order of work processes is wrong. Thereby, a manufacturing process can be advanced correctly according to the order of the defined work process, without skipping a work process.
In this way, by issuing a warning when a preset prohibited item is met, it is possible to prevent work from being performed in an unfavorable state in terms of work efficiency, quality of the final product, safety, or the like. it can.
As described above, according to the traceability management system 1 according to the present embodiment, it is possible to easily record the worker, the material, the contents of the work process, the location of the material or the work process, and the work time. Alternatively, it is possible to easily grasp the progress of the maintenance process and to improve the process.

  As mentioned above, although embodiment of this invention was described in detail, it cannot be overemphasized that this invention is not limited to this, In the range which does not deviate from the summary of this invention, various improvement and deformation | transformation may be performed.

DESCRIPTION OF SYMBOLS 1 Traceability management system 2 Database 3 Management server 4 Worker terminal 5 Manager terminal 6 Customer terminal 21 Worker master 22 Material master 23 Work process master 24 Location master 25 Cost master 26 Traceability file 31,41,51,61 Communication part 32 processing unit 33 storage unit 34, 42, 52, 62 display unit 35, 43, 53, 63 input unit 45 camera 301 worker identification information acquisition unit 302 in-process operation process display unit 303 material identification information acquisition unit 304 work process information transmission Unit 305 position information acquisition unit 306 map display unit 307 position information correction unit 308 start signal acquisition unit 309 completion signal acquisition unit 310 history information output unit 311 delivery date estimation unit 312 work time display unit 320 cost calculation unit 321 cost display unit 322 result integration Value calculation unit 323 Target integrated value calculation Section 324 Comparison display section 413 Start button 414 Finish button 415 Transport button 431 Map 432 Material position 433 Shooting button 435 Camera shooting area

Claims (8)

A traceability management system for managing history information of the material in a process of manufacturing or maintaining a product composed of a plurality of materials,
A database in which a plurality of work steps constituting the process and materials used in each work step are associated and stored;
A material identification information acquisition unit that acquires material identification information of a work target material among the plurality of materials from an operator terminal capable of inputting material identification information unique to each material,
Based on the material identification information acquired by the material identification information acquisition unit, an operation for reading out information indicating a work target process involving the work target material from the plurality of work processes from the database and sending it to the worker terminal A process information transmission unit;
A start signal acquisition unit for acquiring a start signal notifying the start of the work target process from the worker terminal;
A completion signal acquisition unit for acquiring a completion signal notifying the completion of the work target process from the worker terminal;
A position information acquisition unit for acquiring position information of the work target material;
A traceability management system comprising: a history information output unit that outputs history information of the work target material in response to a request from an external terminal based on the start signal, the completion signal, and the position information. In the database, predetermined position information of each material in each work process is stored,
The position information acquisition unit reads the position information of the work target material corresponding to the work target process from the database based on the material identification information acquired by the material identification information acquisition unit, and stores the position information in the position information. A map display unit that displays a region including a corresponding position as a map on the worker terminal, and correction information regarding the position of the work target material in the map is acquired from the worker terminal, and the correction information is based on the correction information. The traceability management system according to claim 1, further comprising a position information correction unit that corrects the position information. In the database, the work process, the start signal and the completion signal of the work process are stored,
A delivery date estimating unit for estimating a delivery date of a product based on a correlation between a past work process stored in the database and a time required for the work process calculated from the start signal and the completion signal; The traceability management system according to claim 1 or 2, wherein The product shares at least one work step with other types of products that are scheduled to be manufactured or maintained;
The database stores a relationship between a combination of the product and the other type of product and a time required for the product of the at least one work process that the product shares with the other type of product. ,
The traceability management system according to claim 3, wherein the delivery date estimation unit estimates the delivery date using the relationship. The database stores a relationship between a time required for the work process and a resource including at least one of a worker and equipment to be input to the work process,
The traceability management system according to claim 3, wherein the delivery date estimation unit estimates the delivery date using the relationship.   The plurality of work processes stored in the database include at least one value-added work process for improving the added value of the material by changing the shape or property of the material and at least one non-addition process without increasing the added value of the material. 6. The traceability management system according to claim 1, wherein the process is divided in units of value-added work steps. The material identification information stored in the database includes identification information regarding the lot of the material,
The traceability management system according to claim 1, wherein the history information output unit outputs information in units of the lot. A traceability management method for managing history information of the material in a process of manufacturing or maintaining a product composed of a plurality of materials,
A step of previously storing a plurality of work steps constituting the process in association with materials used for each work step in a database;
Acquiring material identification information of a work target material among the plurality of materials from an operator terminal capable of inputting material identification information unique to each material; and
Based on the material identification information, reading the information indicating the work target process involving the work target material among the plurality of work processes from the database and sending the information to the worker terminal;
Obtaining a start signal notifying the start of the work target process from the worker terminal;
Obtaining a completion signal notifying the completion of the work target process from the worker terminal;
Obtaining position information of the work target material;
A traceability management method comprising: outputting history information of the material in response to a request from an external terminal based on the initiation signal, the completion signal, and the position information.