JP6057607B2 - Production management system and method - Google Patents

Description

  The present disclosure relates to a production management system and method for a manufacturing process for obtaining a product from a plurality of materials (materials, parts, intermediate products, etc.), and in particular, a production management system capable of grasping progress in each step of the manufacturing process, and Regarding the method.

  Conventionally, production management systems that acquire process progress information have been used in various production lines for the purpose of improving production efficiency and shortening lead time.

  For example, Patent Document 1 describes a method of managing the progress of the processing process of an object to be processed using a management tag. In this method, a management tag on which information related to the object to be processed is printed is attached to the object to be processed, the tag piece is cut out at the end of each processing step, and the tag piece is scanned with a handy terminal to obtain information on the object to be processed. Read. The read information is transmitted to the server and aggregated.

  Moreover, although not applied to a production line, Patent Document 2 discloses a system that manages the progress of construction using identification information. This system includes a progress management database for managing the progress of the construction, a plurality of terminals provided at each location of the construction, and a management server for acquiring data relating to the construction work from the terminals. And the identification information of material is acquired by reading the figure of the label affixed on the building material with a terminal, The content of work performed with respect to the material and work date are matched and transmitted to a management server. The management server registers the acquired work data in the progress management database.

JP 2001-315920 A JP 2007-323497 A

  By the way, in order to improve the production efficiency, it is considered effective to shorten the lead time of the entire manufacturing process by reducing the time spent for the value-added work among all the work processes. The value-added work is a work in which the property and shape of the material do not change, such as material transportation or stagnation. On the other hand, the value-added work is a work for improving the added value of the material by changing the shape and properties of the material, such as processing and assembly.

  To that end, first, it is necessary to collect data relating to the progress of a number of work processes divided into value-added work and value-added work. In addition, when processing multiple products in batch units, the time spent on no-load value work is usually different for each product even within the same lot. Should be collected for each material corresponding to each product.

  However, in order to collect detailed data regarding the progress of such a large number of work processes in units of products rather than in units of lots, an excessive burden is imposed on the workers.

  In this respect, the management method described in Patent Document 1 and the management system described in Patent Document 2 originally collect data on the progress status of many work processes divided into value-added work and value-added work in units of products. Not what you want. Further, neither of Patent Documents 1 and 2 discloses nor suggests a countermeasure for collecting such precise data without imposing an excessive burden on the worker.

  Therefore, the purpose of at least one embodiment of the present invention is to grasp the progress status of detailed work processes classified by work unit suitable for shortening the lead time for each material without imposing an excessive burden on the worker. It is to provide a possible production management system and method.

  A production management system according to at least one embodiment of the present invention is a production management system for a manufacturing process in which a product is obtained using a plurality of materials, and the added value of the material is increased by changing the shape or property of the material. A plurality of work processes obtained by dividing the manufacturing process in units of at least one value-added work process to be improved and at least one value-free work process not accompanied by an increase in the added value of materials, and used for each work process A material identification information acquisition unit that acquires material identification information of a work target material among the plurality of materials, from a database in which materials are stored in association with each other, and a worker terminal that can input material identification information unique to each material, Based on the material identification information acquired by the material identification information acquisition unit, information indicating a work target process involving the work target material among the plurality of work processes. A work process information transmitting unit that reads out from the database and sends it to the worker terminal, a start signal acquisition unit that obtains a start signal notifying the start of the work target process from the worker terminal, and completion of the work target process And a completion signal acquisition unit for acquiring a completion signal for informing the operator from the worker terminal.

  Here, “material” includes materials constituting the product, parts, and an intermediate product formed from a plurality of parts. The “product” obtained by the manufacturing process includes an intermediate product and a final product. Further, the value-added work process is a work process for improving the added value of the material by changing the shape or property of the material, for example, 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 the production management system, the manufacturing process is divided into a plurality of work processes in units of value-added work processes and value-added work processes. The material identification information is given to each material. Therefore, by collecting start signals and completion signals for each work process in which each material is involved, data on the progress status is collected for each material for each of many work processes divided into value-added work and value-free work. It becomes possible to do. 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 addition, the work process and materials are stored in the database in association with each other, and based on the material identification information of the work target material obtained from the worker terminal, the work process involved in the work target material is read from the database and the work is performed. Is sent to the user terminal. Therefore, the work target process for which input of the start signal and the completion signal is required is identified from among a large number 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 is possible to collect data on the progress status for each material for a number of work processes divided into value-added work and value-added work. Therefore, it is possible to greatly reduce the burden on the worker.

In one embodiment, the database stores the equipment rate based on the unit price of equipment used in each work process, and includes the cost of the material, the start signal and the completion signal, and the equipment rate. You may further provide the cost calculation part which calculates the cost consumed by the present time, and the cost display part which displays the cost calculated by the said cost calculation part on an external terminal.
The equipment rate is a cost per unit time consumed by the operation of the equipment, and includes, for example, a depreciation cost of the equipment. In addition, the equipment rate may include a cost per unit time spent on the maintenance of the equipment, such as labor costs such as labor costs and material costs such as replacement parts. The external terminal may be a worker terminal or an administrator terminal.
In the above production management system, since the work time for each work process can be grasped in real time from the start signal and the completion signal, the processing cost required for material processing can be calculated from the work time and the equipment rate. The total cost consumed up to the present time can be calculated from the cost of the material. As a result, even during the manufacturing process, the cost consumed at the present time can be grasped in real time, and the subsequent work process can be reviewed. In general, a plurality of work processes may be performed in parallel, or a plurality of workers may be engaged in one work process. However, the production management system collects and consumes work time for each work process. Since the calculated cost is calculated, the cost information can be centrally managed.

In one embodiment, an actual integrated value calculation that calculates an actual integrated value consisting of a time integrated value of the sum of the cost of each material and the machining cost of each operation process from the start signal and the completion signal acquired for each operation process A part may be further provided.
In this way, the time axis is taken into consideration when evaluating the aggregated data, and the time integrated value of the sum of the cost of each material and the processing cost of each work process is calculated from the start signal and completion signal acquired for each work process. As a result, it is possible to evaluate the profitability of the entire production line considering not only the costs actually spent as direct costs or indirect costs but also the effects of the stagnation status of the materials in process and the lead time. It becomes.

In one embodiment, the database stores an equipment rate based on a unit price of equipment used in the work process and a standard time of each work process set in advance, and the database stores the data stored in the database. A target integrated value calculation unit that calculates a target integrated value that is a time integrated value of the sum of the processing cost calculated from the equipment rate and the standard time and the cost of each material; the target integrated value and the actual integrated value; And a contrast display unit that displays the information on an external terminal.
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.

In one embodiment, the apparatus further comprises a worker identification information acquisition unit that acquires worker-specific worker identification information from the worker terminal, and the database associates the worker identification information with the start signal and the completion signal. May be stored for each work target process.
Thus, by storing the worker identification information in association with the start signal and the completion signal by the worker identification information acquisition unit, it is possible to easily identify the worker who actually performed the work target process. Furthermore, it becomes possible to grasp the work efficiency for each worker from the start signal and the completion signal of the work target process.

In one embodiment, based on the start signal and the completion signal stored in the database for each work target process in association with the worker identification information, the worker corresponding to the worker identification information is in progress. You may further provide the in-process work process display part which displays a work process on the said worker terminal.
Here, the work process in process corresponds to a work process in which a start signal is acquired but a completion signal is not acquired among a plurality of work processes.
In this way, by displaying the work process in progress on the worker terminal, the worker can easily grasp the work process in progress, and can prevent work leakage and the like.

In one embodiment, the apparatus may further include a work time display unit that displays an elapsed time from the start of the work target process on the worker terminal in comparison with a standard work time of the work target process.
As described above, the work time display unit displays the elapsed time from the start time on the worker terminal in comparison with the standard time, so that the worker can objectively determine his / her work efficiency. In addition, when the worker recognizes the work efficiency, the worker can make new efforts such as reviewing the overall efficiency as well as his own work.

In one embodiment, the apparatus further includes a worker identification information acquisition unit that acquires worker identification information unique to a worker from the worker terminal, and the work time display unit is configured for the work target process that each worker is working on. The elapsed time may be displayed on the administrator terminal in comparison with the standard work time.
In this way, the work manager displays the work process to be performed by each worker and the elapsed time compared with the standard time on the manager terminal by the work time display unit, so that the work manager can be located at a place away from the worker. However, it becomes possible to objectively grasp the work efficiency of the worker. In addition, if the elapsed times of a plurality of workers are displayed side by side, an objective comparison of work efficiency among the plurality of workers can be facilitated. Therefore, the PDCA (Plan-Do-Check-Act) cycle can be surely rotated, and in particular, the manufacturing process can be improved (Act).

In one embodiment, a predetermined location area of each material in each work process is stored in the database, and the work target is based on the material identification information acquired by the material identification information acquisition unit. A map display unit that reads out a location area of the work target material corresponding to a process from the database and displays a region including the location area as a map on the worker terminal; and a position of the work target material in the map A position correction information acquisition unit that acquires correction information from the operator terminal, and the database stores the position of the work target material based on the correction information acquired by the position correction information acquisition unit. May be.
As described above, by displaying the area including the material location area on the worker terminal using the map display unit, the material location area can be easily grasped visually. Furthermore, by correcting the location area registered based on the actual material location area by the location correction information acquisition unit, the exact location of the material can be shared among a plurality of workers.

In one embodiment, the image processing apparatus further includes an image information acquisition unit that acquires image information of the work target material photographed by the worker terminal, and the database includes the image information of the work target material and the work target material. The position may be stored.
In this way, by storing the image information of the work target material actually taken together with the correction position information of the work target material in the database, it is possible to remotely determine whether the worker actually handled the work target material at the manufacturing site. Can be confirmed by the administrator. In addition, even if incorrect position information is stored due to an operator registration error, etc., it is possible to easily find an error by checking the image information, and to grasp the actual accurate position from the image information. It becomes possible. In addition, the image information acquired by the image information acquisition unit is used to check whether there are any errors in the work content, used as a record when material incompatibility occurs, or work such as engraving on the material. It can be used as a record of important information in process traceability.

In one embodiment, the database stores prohibited items related to at least one of the skill of workers defined for each work process, the number of workers, and the simultaneous execution status with other work processes, and A warning unit may be further provided that issues a warning to the worker terminal when corresponding to the prohibited item based on information input from the worker terminal.
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 from the viewpoint of work efficiency, quality of the final product, safety, and the like. .

In one embodiment, in the database, the work process and a preset standard time of each work process are linked and stored, and worker-specific worker identification information and worker evaluation are stored. An evaluation that is linked and stored and updates the evaluation of the worker according to a comparison result between the actual work time calculated from the start signal and the completion signal and the standard time stored in the database A part may be further provided.
Workers are evaluated when the productivity and cost of the manufacturing process are improved, but the devices and efforts in each work process are rarely evaluated, and therefore maintain the worker's motivation. Is difficult.
In the above embodiment, the worker identification information and the worker's evaluation are linked and stored in the database, and the actual work time obtained from the start signal and the completion signal is compared with the standard time stored in advance in the database. The worker's evaluation is updated according to the result. In other words, the work time that has a great influence on productivity and cost is used as an evaluation index, and each worker is evaluated from the work time actually required for each work process. Thereby, the device and effort in each work process of the worker can be accurately reflected in the evaluation. Therefore, for the worker, the evaluation updated every work time becomes a motivation for shortening the work time, and the worker's motivation can be improved.

In one embodiment, an evaluation point is stored for each of the workers as the evaluation in the database, and the evaluation unit uses the evaluation point weighted according to the difficulty level of the work process. The evaluation points stored in the table may be updated.
For example, even if the difference between the actual work time and the standard time is substantially the same, a higher evaluation point is assigned to a work process with a higher degree of difficulty than a work process with a lower degree of difficulty. Thus, by using the evaluation points weighted according to the difficulty level of the work process, it is possible to ensure the fairness of the evaluation and further improve the worker's motivation.

A production management method according to at least one embodiment of the present invention is a production management method for a manufacturing process for obtaining a product using a plurality of materials,
The manufacturing process is divided into units of 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 value-added work process not accompanied by an increase in the added value of the material. A step of storing in advance in a database a plurality of work processes and materials used for each work process in association with each other;
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 previous SL material identification information, and sending information indicative of the work object process the work object material is involved among the plurality of working processes in the operator's terminal is read from said database,
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.

According to the above production management method, it is possible to collect data on progress status for each material for many work processes divided into value-added work and value-added work, and work suitable for shortening lead time It is possible to grasp the progress of detailed work processes classified by unit for each material.
In addition, since 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, a start signal and a completion signal are selected from a large number of work processes accumulated in the database. The work target process that is required to be input is specified, and the worker 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 inputting the material identification information, and the data on the progress status of many work processes for each material. Can be collected. Therefore, it is possible to greatly reduce the burden on the worker.

  According to at least one embodiment of the present invention, data on progress is collected for each material for a number of work processes divided into value-added work and valueless work without imposing an excessive burden on the worker. Therefore, 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.

It is a schematic diagram which shows the structure of the production management system which concerns on embodiment of this invention, and its peripheral device. It is a figure which shows the main functions of the production 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 performance work 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 flowchart which shows the processing method of the production management system which concerns on embodiment of this invention. It is a figure explaining the structure relevant to the cost management of a production management system. It is a graph which shows the time-sequential transition of the cost in a manufacturing process. It is a figure which shows an example of a production allocation table. It is a figure which shows the display screen which contrasted track record integrated value and target integrated value. It is a figure explaining the structure relevant to the elapsed time display process and worker evaluation process of a production 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 which shows the structural example of an operator evaluation file. It is a figure explaining the structure relevant to the positional information acquisition process of a production management system. It is a figure which shows the display screen of the map in an operator terminal.

  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, but are merely illustrative examples.

First, with reference to FIG. 1, the outline | summary of a structure of the production management system which concerns on embodiment of this invention and its peripheral device is demonstrated.
Note that the production management system 1 according to the present embodiment performs production management of a manufacturing process in which a product is obtained using a plurality of materials, and particularly for the purpose of grasping the progress status in each work process. Based on the information acquired from step 4, start and completion information of each work process is collected. Here, the manufacturing 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 production management system 1 includes a database 2 and a management server 3, and the management server 3 can be connected to a worker terminal 4 via a network (communication line) 10. In addition to the operator terminal 4, the administrator terminal 5 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 production management system 1 may be installed at a work site of the production line, but is usually installed at a remote management place away from the work site. A specific configuration of the production management system 1 will be described later.

The worker terminal 4 is carried by a worker on the production line, and preferably a plurality of workers carry the worker terminal 4 respectively. In some embodiments, the worker terminal 4 includes a communication unit 41 that communicates with the production management system 1, a display unit 42 that displays various data, and an input unit 43 that inputs various data. As the worker terminal 4, for example, a mobile terminal such as a tablet terminal, a smartphone, a mobile phone, or a PC can be used.
The manager terminal 5 is carried by the manager of the production line. In some embodiments, the manager terminal 5 includes a communication unit 51 that communicates with the production management system 1, a display unit 52 that displays various data, and an input unit 53 that inputs various data. As the administrator terminal 5, for example, a mobile terminal such as a tablet terminal, a smartphone, a mobile phone, or a PC can be used.

Here, a specific configuration of the production management system 1 will be described.
As shown in FIG. 1, the database 2 of the production management system 1 mainly includes an operator master 21, a material master 22, and a work process master 23. Further, the database 2 may have a location master 24 and a cost master 25. In addition to these master files, the database 2 includes other master files 26 in which other basic data is stored, or a rewritable transaction such as an actual work file 27 and a worker evaluation file 28 described later. You may have the other file 26 which consists of a file.
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 constituting one record include worker ID, name, affiliation, authority, evaluation point, 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. The evaluation points are points acquired by the worker based on the actual results, and the specific contents thereof will be described later. Further, the database 2 may be provided with a rewritable worker performance file associated with the worker master 21, and the work in progress, completed work, etc. of the worker stored in this file may be updated at any time. Good.

  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 serial number (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 serial number 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 is a work process in which materials registered in the record are used. Furthermore, a material transaction file may be provided in association with the material master 22, and the arrival status of the material, the processing state of the material, 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, difficulty level, 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 character, number, or symbol for identifying 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 a worker's skill required for work in the work process (for example, a skill corresponding to the authority of the worker master). The degree of difficulty indicates the degree of difficulty with respect to the work content of the work process, and is used when the worker is evaluated. Details of the prohibited items and the difficulty level 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. Consists 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.

  FIG. 6 is a diagram illustrating a configuration example of the location master 24. The location master 24 stores a predetermined location area of each material during each work process. For example, absolute location information such as latitude and longitude and a preset location name on the map are registered in the location master 24. A specific configuration of the location master 24 will be described later as an explanation related to FIG.

  FIG. 7 is a diagram illustrating a configuration example of the cost master 25. The cost master 25 mainly stores the equipment rate obtained from the initial cost and running cost of the equipment. Here, 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 cost master 25 may include other costs such as maintenance costs. The cost master 25 is mainly used when the profitability of the production line is evaluated by the performance integrated value calculation unit 309.

  FIG. 8 is a diagram illustrating a configuration example of the actual work file 27. The actual work file 27 stores information related to a plurality of work processes in a rewritable manner as related information for each work process as one record. Examples of items constituting one record include work process code, worker ID, start time, completion time, actual work time, and the like. As the work process code, the same code as the work process master 23 is used. The worker ID of the worker who actually performed the work process is stored as the worker ID. As the start time and completion time, the time when the start signal and completion signal of the work process are acquired is stored. A time calculated from the start time and the completion time is stored as the actual work time. The actual work file 27 can be used to extract necessary information from the work process master 23 and the worker master 21 using a work process code (or work process name), a worker ID, and the like as keys. Information stored in the actual work file 27 is accumulated and updated as needed.

As shown in FIG. 1, the management server 3 of the production management system 1 has a communication unit 31 that communicates with the worker terminal 4 and the administrator terminal 5, a processing unit 32 that performs various arithmetic processes, as shown in FIG. 1. And a storage unit 33 for storing information obtained from the worker terminal 4. 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 35 which performs the data input to the database 2, a data correction, etc., and the display part 34 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 production management system according to the embodiment of the present invention and the flow of the processing. In at least some embodiments, the main functions of the production management system are functions for acquiring worker identification information and material identification information, and for acquiring a work process start signal and completion signal.
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 a start signal. An acquisition unit 305 and a completion signal acquisition unit 306 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 based on the worker ID acquired from the worker terminal 4 and displays it on the worker terminal 4. 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 3 , based on the material S / N, the work process name and the like of the work target process in which the corresponding material is used are 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 the work process corresponding to the other material S / N from the material master 22 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 start signal acquisition unit 305 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 306 acquires a completion signal for notifying 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 database 2.
In addition, the completion signal acquisition unit 306 may receive the 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 3. since the clock terminal 4 is also considered likely to be displaced, the management server 3 acquires undertake signal or a complete signal by using the clock of the operator terminal 4 acquired from the time management server 3, and stores Is preferred.

Next, an example of the production management method according to the present embodiment will be described with reference to FIG. In the following, the processing of the worker terminal 4 and the management server 3 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 305 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 306 of the management server 3 stores the work target process and the time when the completion signal is acquired in association with each other in the database 2 (for example, the actual work file 27) (S8).

  The start time and completion time of each work process are displayed on the display unit 52 of the administrator terminal 5, for example. The administrator can grasp the time required for the value-added work and the time required for the value-added work process from the start time and completion time of each work process displayed on the display unit 52, and which work process takes time. It is possible to accurately analyze problems in the manufacturing process, such as whether or not, and by reducing the value-added work process, it is possible to reduce the lead time of the manufacturing line.

  As described above, according to the present embodiment, data relating to progress is collected for each material for each of a large number of work processes divided into value-added work and value-added work without imposing an excessive burden on the worker. Therefore, 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 particular, the collected data makes it possible to see the stagnation of materials, which can greatly contribute to shortening the lead time. Furthermore, since the management server 3 is configured to manage the progress of each work process corresponding to each of a plurality of materials in an integrated manner, the progress of the entire work process can be grasped, and the order of the work processes determined is determined. It is also possible to proceed with the manufacturing process accurately without skipping the work process. In addition, since the time variation can be seen even in one process, the improvement can be achieved by paying attention to the process having a large variation. Furthermore, the collected data may be used to show the time as a Pareto chart, thereby making it possible to improve by paying attention to the time-consuming process. Moreover, in this embodiment, since it is possible not to leave various data such as information on the worker and the work process in the worker terminal 4, it is a case where the worker loses the worker terminal 4 by any chance. Can prevent data from leaking outside.

  In some embodiments, the production management system 1 may include the following configuration in addition to the configuration described above.

In one embodiment, FIGS. 14 to 17 show a configuration in the case where cost management is performed using the production management system 1.
FIG. 14 is a diagram illustrating a configuration related to cost management of the production management system.
As shown in the figure, the production management system 1 further includes a cost calculation unit 307, a cost display unit 308, an actual integrated value calculation unit 309, a target integrated value calculation unit 310, and a comparison display unit 311. Also good.

The cost calculation unit 307 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 308 displays the cost calculated by the cost calculation unit 307 on the external terminal. The external terminal may be the worker terminal 4 or the administrator terminal 5, or may be another terminal that can be connected to the network and has access permission.

  For the purpose of evaluating the profitability of the production line, the actual accumulated value calculation unit 309 is the sum of the cost required to purchase 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. 15 is a graph showing the time series transition of the cost, 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 310 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 production allocation table shown in FIG. The production 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. 16, assuming that there are 15 materials per lot and the number of materials that can be processed per day is 5 in work process A, 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 production allocation table is associated with a location for each work process, and the schedule of the work process is set so as to satisfy a constraint condition such as whether or not the process can be performed concurrently. In this way, a production allocation table can be created by assembling a work schedule using the standard time so as to satisfy the constraint condition given to the work process. Then, the target integrated value calculation unit 310 assumes that the work proceeds along the production allocation table, the work schedule determined in the production allocation 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 311 compares the target integrated value calculated by the target integrated value calculation unit 310 with the actual integrated value calculated by the actual integrated value calculation unit 309 and displays the result on the external terminal. The external terminal may be the worker terminal 4 or the administrator terminal 5, or may be another terminal that can be connected to the network and has access permission. As an example, FIG. 17 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 52 of the administrator terminal 5 is shown. The display unit 52 displays a time-series transition graph 521 of actual costs and a time-series transition 523 of target costs in comparison. The area represented by hatching of the actual cost graph 521, that is, the actual integrated value and the actual actual cost (vertical axis) 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. 14, an example of a processing flow in the case of 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 administrator terminal 5, the cost calculation unit 307 of the management server 3 uses the work process from the actual work file 27 (see FIG. 8) for each work process that has received both the start signal and the completion signal. The start time and completion time corresponding to are extracted, and the actual work time of each work process is calculated from these start time and completion time. At this time, when the actual work time is already stored in the actual work file 27, 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 308 displays the cost calculated by the cost calculation unit 307 on the display unit 52 of the administrator terminal 5.

When the accumulated value request is received from the administrator terminal 5, the actual accumulated value calculation unit 309 of the management server 3 receives the start time and the start time from the actual work file 27 for each work process that has received both the start signal and the completion signal. Extract completion 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 310 calculates a machining cost based on the standard time extracted from the work process master 23 and the equipment rate, and a target composed of a time integral 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. The comparison display unit 311 causes the display unit 52 of the administrator terminal 5 to display the actual integration value calculated by the actual integration value calculation unit 309 and the target integration value calculated by the target integration value calculation unit 310.
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. 17, it is easy to determine which work process has time loss or which work process consumes a large amount of processing cost. It is possible to judge.

In one embodiment, FIGS. 18 to 21 show a configuration in the case where an elapsed time display process and an operator evaluation process are performed using the production management system 1.
FIG. 18 is a diagram illustrating a configuration related to the elapsed time display process and the worker evaluation process of the production management system. The elapsed time display process and the worker evaluation process are performed after acquiring the start signal and the completion signal.
As shown in the figure, the production management system 1 may further include a work time display unit 312 and an evaluation unit 313.
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 the work target process 423 , worker information 422 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 423 , worker information 422, 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 423 for each worker and the elapsed time 424 compared with the standard time, so that the work can be performed even at a place away from the worker. The manager can objectively grasp the work efficiency of the worker.

The evaluation unit 313 stores the actual work time calculated from the start signal and the completion signal in the worker evaluation file 28 of the database 2 according to the comparison result between the work process standard time stored in the work process master 23. Update worker ratings. The comparison result between the actual work time and the standard time used for the worker's evaluation update may be the difference between the actual work time and the standard time, or the ratio of the actual work time to the standard time. Good.
Here, the worker evaluation file 28 is a rewritable file in which evaluation is stored for each worker as shown in FIG. For example, the worker evaluation file 28 includes a rewritable table having worker ID, work performed, actual working time, evaluation points, and the like as fields. The worker ID is the same as the code of the worker master 21. The implementation work is the content of work performed in the past. Actual working time is the time spent in the work process in the past. The evaluation points are obtained by accumulating points acquired based on the past results of the worker. The evaluation unit 313 gives points to the worker according to the comparison result between the worker's actual work time and the standard time, and updates the evaluation points of the worker evaluation file 28 by adding the newly given points. To do. Note that the evaluation points in the worker evaluation file 28 may be reflected in the evaluation points of the worker master 21 at regular intervals. Further, the evaluation points of the worker master 21 may be directly updated according to the comparison result between the worker's actual work time and the standard time without using the worker evaluation file 28. Furthermore, the worker evaluation file 28 or the worker master 21 may be updated using evaluation points weighted according to the difficulty level of the work process. The difficulty level of the work process may be stored in the work process master 23. Even if the difference between the actual work time and the standard time is the same, the evaluation unit 313 gives a higher evaluation point to a work process with a higher degree of difficulty than a work process with a lower degree of difficulty. Thus, by using the evaluation points weighted according to the difficulty level of the work process, it is possible to ensure the fairness of the evaluation and further improve the worker's motivation. Furthermore, the evaluation point may be changed according to the ability or skill of the worker. For example, even when the same work process is performed, the evaluation point is lowered when the ability of the worker is high, and the evaluation point is raised when the ability of the worker is low. Thereby, an operator's effort and device can be evaluated in consideration of an operator's ability or skill.

In one embodiment, FIG. 22 and FIG. 23 show a configuration in the case of performing position information acquisition processing using the production management system 1.
FIG. 22 is a diagram illustrating a configuration related to the position information acquisition process of the production management system .
As shown in the figure, the production management system 1 may further include a map display unit 320, a position correction information acquisition unit 321 and an image information acquisition unit 322.

As shown in FIG. 6, the location master 24 stores position information of each area in the map display area. Specifically, the map display area is divided into a plurality of areas by latitude and longitude, and the location master 24 includes a location / area code for identifying each area, location information of the location / area code, The installation material etc. which show the material installed in the area are 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. Thus, the location master 24 stores a predetermined location area of each material during each work process. The location area 432 stored in the location master 24 may be a preset material storage location, or may be a placement area for materials set at the time of delivery of materials. Further, the material and the location area may be stored in a rewritable file different from the location master 24. In this case, the location / area code is stored as the location area, and the location location of the material using this code as a key Are extracted from the location master 24.
As shown in FIG. 23, the map display unit 320 reads out the location area 432 of the work target material corresponding to the work target process from the location master 24 based on the material S / N acquired by the material identification information acquisition unit 303. The area including the location area 432 is displayed as a map 431 on the display unit 42 of the worker terminal 4. In addition, the map display process to the worker terminal 4 by the map display unit 320 may be triggered by acquisition of the material S / N from the worker terminal 4, or a map display request from the worker terminal 4; For example, it may be activated using a tap of a map display button or the like as a trigger.

  The position correction information acquisition unit 321 acquires correction information regarding the position 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, the position of the work target material in the map 431 is acquired by tapping (for example, long pressing) the actual position of the work target material in the map 431. 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 section sections. When a certain position in the map 431 is tapped, the position coordinates of the section are transmitted to the management server 3, and the management server 3 stores the position coordinates in the transaction file associated with the location master 24 as the corrected position information. At this time, the location area 432 shown in the map 431 is corrected based on the correction position information.

  Further, the position correction information acquisition unit 321 may acquire the GPS position information of the worker terminal 4 along with the acquisition of the position correction information described above. Specifically, the worker terminal 4 has a GPS function, and the worker terminal 4 also acquires GPS position information when registering position correction information. The position correction information acquisition unit 321 of the management server 3 compares the GPS position information acquired from the worker terminal 4 via the communication line 10 with the correction position information, and determines whether the correction position information is accurate. To do. 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.

Furthermore, the management server 3 may have an image information acquisition unit 322. In this case, as shown in FIG. 23, 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 the like 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 production management system 1 according to the present embodiment, the worker, the material, the contents of the work process, the location of the material or the work process, and the work time can be easily recorded. It is possible to easily grasp the progress of the process and improve the manufacturing 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 Production management system 2 Database 3 Management server 4 Worker terminal 5 Administrator terminal 21 Worker master 22 Material master 23 Work process master 24 Location master 25 Cost master 31,41,51 Communication part 32 Processing part 33 Storage part 34,42 , 52 Display unit 35, 43, 53 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 Start signal acquisition unit 306 Completion signal acquisition unit 307 Cost Calculation unit 308 Cost display unit 309 Actual integrated value calculation unit 310 Target integrated value calculation unit 311 Comparison display unit 312 Work time display unit 313 Evaluation unit 320 Map display unit 321 Position correction information acquisition unit 413 Start button 414 Complete button 415 Transport button 431 Map 432 Location area 433 Tan 435 Camera shooting area

Claims (14)

A production management system for a manufacturing process for obtaining a product using a plurality of materials,
The manufacturing process is divided into units of 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 value-added work process not accompanied by an increase in the added value of the material. A database in which a plurality of work processes and materials used for each work process are stored in association with each other;
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 production management system comprising: a completion signal acquisition unit that acquires from the worker terminal a completion signal that informs completion of the work target process. The database stores equipment rates based on the unit price of equipment used in each work process,
A cost calculator that calculates the cost of the material, the start signal and the completion signal, and the cost consumed up to the present time from the equipment rate;
The production management system according to claim 1, further comprising a cost display unit configured to display the cost calculated by the cost calculation unit on an external terminal.   Further comprising an actual integrated value calculation unit that calculates an actual integrated value consisting of a time integral value of the sum of the cost of each material and the processing cost of each operation process from the start signal and the completion signal acquired for each operation process. The production management system according to claim 1. The database stores the equipment rate based on the unit price of equipment used in the work process, and the standard time of each work process set in advance,
A target integrated value calculation unit that calculates a target integrated value consisting of a time integrated value of the sum of the processing cost calculated from the equipment rate and the standard time stored in the database and the cost of each material;
The production management system according to claim 3, further comprising a comparison display unit configured to display the target integrated value and the actual integrated value on an external terminal. Further comprising a worker identification information acquisition unit for acquiring worker identification information unique to the worker from the worker terminal;
5. The production management system according to claim 1, wherein the database stores the start signal and the completion signal in association with the worker identification information for each work target process. 6. Based on the start signal and the completion signal stored in the database for each work target process in association with the worker identification information, the work process in progress of the worker corresponding to the worker identification information is performed as the work. production control system according to claim 5, further comprising a progress work process display unit to be displayed on the terminal.   The work time display part which displays the elapsed time after the said work object process was started with the standard work time of the said work object process, and displays it on the said worker terminal is characterized by the above-mentioned. The production management system according to any one of the above. Further comprising a worker identification information acquisition unit for acquiring worker identification information unique to the worker from the worker terminal;
The production time according to claim 7, wherein the work time display unit displays the elapsed time on an administrator terminal in contrast to the standard work time for the work target process that each worker is working on. Management system. In the database, a predetermined location area of each material in each work process is stored,
Based on the material identification information acquired by the material identification information acquisition unit, a location area of the work target material corresponding to the work target process is read from the database, and an area including the location area is read to the worker terminal. A map display section to be displayed as a map;
A position correction information acquisition unit for acquiring correction information related to the position of the work target material in the map from the worker terminal;
The production management according to claim 1, wherein the database stores the position of the work target material based on the correction information acquired by the position correction information acquisition unit. system. An image information acquisition unit that acquires image information of the work target material photographed by the worker terminal;
The production management system according to claim 9, wherein the database stores the position of the work target material together with the image information of the work target material. In the database, prohibited items related to at least one of the skill of the worker, the number of workers, and the simultaneous execution status with other work processes determined for each work process are stored,
11. The apparatus according to claim 1, further comprising: a warning unit that issues a warning to the worker terminal when corresponding to the prohibited item based on information input from the worker terminal. The production management system described. In the database, the work process and a preset standard time of each work process are linked and stored, and worker-specific worker identification information and a worker's evaluation are linked and stored. Has been
The apparatus further comprises an evaluation unit that updates the evaluation of the worker according to a comparison result between the actual work time calculated from the start signal and the completion signal and the standard time stored in the database. The production management system according to any one of claims 1 to 11. The database stores evaluation points for each worker as the evaluation,
The production management system according to claim 12, wherein the evaluation unit updates the evaluation points stored in the database using the evaluation points weighted according to the difficulty level of the work process. . A production management method for a manufacturing process for obtaining a product using a plurality of materials,
The manufacturing process is divided into units of 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 value-added work process not accompanied by an increase in the added value of the material. A step of storing in advance in a database a plurality of work processes and materials used for each work process in association with each other;
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
A step of, based on the acquisition was the material identification information, and sends the information indicating the work object step of the work object material is involved among the plurality of working processes in the operator's terminal is read from said database,
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.