JP2008250792A - Work process management system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a process management system capable of dispensing with a process management CPU and preventing overlapped work when work process management using an electronic information medium is carried out in field work such as inspection of plant machinery. <P>SOLUTION: A work process table 1 displays a plurality of work process sequences along with a plurality of ID tags 2 storing work manual necessary for each work process. Portable information apparatuses 4, which are given to a plurality of optional workers, can obtain the work manual of the corresponding work process by approaching each of the tags 2 on the work process table 1. When one worker tries to obtain a work manual via a portable information apparatus, each of the ID tags 2 on the work process table 1 determines whether the work manual is already obtained by another worker or not. When the work manual is already obtained by the other worker, the ID tag 2 gives a message of this fact to the portable information apparatus or prohibits acquisition of the work manual by the portable information apparatus. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a work management system for easily managing a series of work processes on site. The work process includes, for example, plant machine and equipment assembly and maintenance (disassembly-care-reassembly), but is not limited thereto.

  In plant equipment such as a power plant, after the plant is constructed and started to operate, equipment inspection and repair work such as turbines and boilers are periodically performed.

  A machine such as a turbine is constructed by a complicated combination of a large number of large precision parts. During regular inspections, these machines are disassembled for inspection and maintenance, and each part is inspected and maintained, and finally assembled to the original state.

  In this type of periodic plant inspection, it is desired to increase the plant operation rate by shortening the inspection work as much as possible.

  Therefore, it is essential for many workers to work in parallel, to devise measures such as preparing work manuals and proceeding with established procedures, and to ensure process management so as not to delay the process. is there.

  In addition, it is desirable to work with an engineer with advanced technology and experience as a conductor and to carry out the work while giving appropriate instructions to many workers to ensure strict adherence to the process and ensure quality.

  Since machines such as power plants are large as described above, it is often impossible for one worker to work alone, and a plurality of workers work simultaneously under the direction of the person responsible for the work. Since the work is progressing in a complicated work procedure, a work mistake or the like may occur in some cases. If a reverse operation due to a work error or a work waiting state due to insufficient process management occurs, a delay occurs in the periodic inspection process, causing a delay in the plant operation resumption time due to the extension of the inspection period, resulting in a large loss.

  The person in charge of work is expected to give appropriate work instructions while sharing information with the worker. In addition, the work manager of each work group must proceed with work while avoiding work conflicts, adjusting work, and improving efficiency while sharing information with the work managers of other work groups.

  At present, information is exchanged between workers or each work group at a meeting before starting work so that many work-related persons can share information, or paper with a work process written in the work area (for example, work process Information sharing etc. are performed by pasting out the table. One of the information sharing methods is pointing and calling, etc., to prevent misrecognition of workers. Pointing and calling is an act of sharing information with many people and actually reading out and reading the work location and work contents with fingers to prevent mistakes.

  On the paper on which the work process is written, the work flow, the work content item (work process), the completion date and time indicating the work progress, and the like are described. When the work witness receives a work completion notification from the work supervisor, the work witness confirms the work completion, writes the name of the work witness and the work completion date and time in the corresponding place in the work flow, and clearly indicates the work progress.

  On the other hand, regarding the work manual in which the contents of each work process are described in detail, the person in charge of work obtains the work day and instructs the worker on the work contents based on the work manual.

  As the work instruction and work performance management method, for example, the use of an RFID tag in an individual order production product as disclosed in Patent Document 1 can be considered, but its application range is limited to process management at a production site. . This prior art has not yet been proposed for problem recognition and problem solving means for making it applicable to a process management system at a work site such as periodic inspection of machines as described above. In Patent Document 1, a production management CPU is required to distribute work instruction information and receive work results. Specifically, in Patent Document 1, the work instruction information for each process distributed from the production management CPU is written in an ID tag, this ID tag is attached to the production target article, and transported to the work area for each process. The worker reads the work instruction information of the ID tag with a portable information terminal. Further, the work results are written in the ID tag by the portable information terminal, read by the ID tag reader of the production line, and transmitted to the production management CPU.

JP-A-2005-190120

  In the field work such as construction of equipment such as a plant and inspection of the plant machine, the present invention obtains information such as a work manual of each work process, or a process performed through a conventional paper-only process chart. Management, work group, and information sharing between workers can be realized by using a single work process table using an electronic information medium, and duplicate work is ensured without the need for a work management CPU to manage the process. It is to provide a simple work process management system that can be prevented.

The work process management system of the present invention is basically configured as follows.
(1) One is a process management of work in which a plurality of work processes are performed, places where the work processes are performed are distributed to a plurality of persons, and a plurality of workers are assigned to the distributed work places for execution. In the system,
A work process table for displaying the order of a plurality of work processes together with a plurality of information media storing information related to work required for each work process;
A plurality of information devices having a function of obtaining work information of a corresponding work process by approaching each information medium of the work process table and a function of displaying the obtained information given to any plurality of workers; , Provided.
(2) The other is a work process chart for displaying the order of a plurality of work processes with a plurality of information media storing work manuals necessary for the respective work processes;
A plurality of portable information devices having a function of giving an operation manual of the corresponding operation process by approaching each information medium of the operation process table and a function of displaying the acquisition manual given to any plurality of operators; Is provided. Further, each of the information media in the work process table indicates whether or not the work manual has already been obtained by another worker when the worker has attempted to obtain the work manual via the portable information device. If it is determined and already obtained by another worker, at least a message to that effect is given to the portable information device, or it is prohibited to obtain the work manual from the portable information device. Features.

For example, the plurality of information media indicating the order of work processes include ID (Identification) tags that identify work processes and store work manuals of the corresponding work processes, and the portable information device includes an ID reader. . The ID tag is set so that after the work manual in the ID tag is read by one of the ID readers, the same work manual cannot be obtained by other workers after the interlock. Yes.
(3) The other is that there are a plurality of work processes, and the places where these work processes are performed are distributed to a plurality of work areas. In the process management system,
Means for displaying the work status of each work process by applying a reader having an information reading function to a corresponding tag storing work information;
Means for inputting work start information into a corresponding tag storing work information to be started;
Means for applying the reader to a corresponding tag storing work information to be started and displaying the contents of the work procedure and points to be noted;
Means for inputting work completion information into the corresponding tag storing the work information after the work is completed;
Means for registering the names and dates of workers and witnesses when the work is completed;
It is characterized by providing.

  According to the present invention, for example, when performing a machine inspection work for a plant or the like, a work management CPU is not required, and duplication of work can be prevented even when a plurality of work processes are performed simultaneously. Accordingly, the occurrence of a back work due to a procedure error can be prevented, the witness can be clarified when the work is completed, and efficient work process management can be performed.

  Embodiments of the present invention will be described below with reference to the drawings.

  FIG. 1 is a configuration diagram of a work process management system according to the present invention.

  The work process management system of this example includes a process table 1 that describes the sequence (work flow) of a series of work processes of plant machine disassembly-care-assembly, and an ID tag 2 attached to each work process of the process table 1 And a plurality of portable information devices 4 each equipped with an ID reader 3. For example, two portable information devices 4 (A) and 4 (B) are illustrated for convenience in FIG.

  The ID tag 2 is prepared for the number of work processes, and work manuals necessary for each work process are stored in advance. The ID tag 2 is composed of, for example, an RFID (Radio Frequency Identification) tag that performs recognition and certification using radio waves, and can read and write data via an external RFID read / write device or portable information device 4. Is possible. The ID tag 2 is not limited to the RFID tag, and may be other electronic or magnetic information media. Hereinafter, it is referred to as an RFID tag.

  After each RFID tag 2 is read by one of a plurality of portable information devices 4 (with an RFID reader 3), an interlock is applied and then other workers perform the same work. The manual is not available. In addition, it has a function of giving a message indicating that it is interlocked (in other words, that the work manual has already been read by another worker) to the portable information device after being read.

  Each portable information device 4 is composed of a mobile with a display, and has a function of displaying information of the RFID tag 2 read via its reader 3 and a function of writing to the RFID 2. Moreover, the portable database which memorize | stores the reading history from the RFID tag 2, and the work history input from the operator is incorporated.

  Each RFID tag 2 can be written with information regarding work completion when the work process is completed using the portable information device 4 of the worker engaged in the work process of the tag.

  Next, a usage example of the work process management system will be described.

  In order to obtain the work manual for the day, the person in charge of each work group, at the start of the work, arbitrarily pasted the work process (work item) written on the work process table 1 (for example, a sheet made of paper, etc.). The RFID reader 3 of its own portable information device 4 is applied to the RFID tag 2 (approach operation to the tag). Here, the arbitrary RFID 2 is an operation for selecting a work process to be executed next by the person in charge of work.

  In this approach operation, the person in charge of work makes the work of the day the work process (work item) to be recognized by the workers of the same group (that is, in order to share information among the workers). The operation of reading the tag with the RFID reader 3 is performed in the same manner as the conventional pointing and calling.

  When the RFID tag 2 to which the RFID reader 3 is applied, in other words, when the portable information device 4 of the person in charge of a certain work team approaches the arbitrary RFID tag 2, the RFID tag 2 is already The work team confirms whether or not the RFID tag work manual has been read. If there is no reading history of other work groups in the RFID tag and it is possible to obtain confirmation from the portable information device 4 of the approach that the RFID tag 2 is in the order of the work process, the approach to the RFID tag 2 is correct. The RFID reader 3 is allowed to read and the contents of the work manual are displayed on the portable information device of the person in charge of the work. The display on the portable information device in this case displays the points to be noted and know-how for each work together with the work manual to be started. This information is displayed on the portable information device with the work precautions from engineers with advanced technology and experience, so that even inexperienced workers can use it appropriately. Work can be performed and quality can be ensured. Note that these points to be noted and know-how can be easily input from the portable information device, and a lot of effective information can be collected by accumulating the know-how of the engineer in the portable information device.

  The RFID tag from which the operation manual is read as described above records information indicating that the operation process in the RFID tag is currently in operation. As a result, an interlock that cannot be displayed even when another work group attempts to read the work procedure manual having the same work content is applied to the RFID tag, and duplication of work can be prevented.

  The person in charge of work confirms the contents of the work manual displayed on the portable information device and instructs the worker. After the work is completed, the work completion information and the completion date and time are recorded by holding the RFID reader over the tag of the corresponding work process location again.

  In this way, when an RFID tag that does not conform to the work process order (other than the corresponding part) is mistakenly approached by the RFID reader, the work manual for the tag is not displayed. Also, in the work flow, the process history is confirmed through the portable information of the worker whether or not the work content before the order of the corresponding work process is completed (a specific example of the history confirmation will be described later), and the corresponding work process When the previous work process has not been completed or started, the work manual is not displayed, and the work procedure can be proceeded without error.

  When the work is completed, the ID of the RFID tag of the witness is read through the portable information device of the work manager of the work group that has completed the work, and the witness is recorded on the RFID tag of the corresponding work process together with the work completion date and time. . This makes it possible to simultaneously perform the work completion procedure and date and time recording work that have been performed separately. In addition, the RFID tag to which work completion has been written is set so that subsequent data rewriting is impossible. This prevents falsification of work data.

  Note that the portable information device of this embodiment can be used for off-line technical training and for training engineers.

  A method for displaying the contents (work manual) of the work process at the start of work in the work process management system described above will be described with reference to FIGS.

  The person in charge of work brings the RFID reader 3 of the portable information device 4 closer to the process table 1 and reads information on an arbitrary RFID tag 2 '(S101). From the read information of the RFID tag 2 ', the work state of the work process at the RFID tag 2' is confirmed (S102). If the confirmed content is “unstarted (unstarted) state of work state”, it is continuously checked whether or not the work state is “incomplete state” (S103 and S104). If the work has already been started or completed by another team, since the contents of the work manual of the corresponding tag 2 'cannot be displayed, a message to that effect is displayed and the process ends (S109).

  If the work process of the corresponding tag 2 'has not been started yet, the work process (work history) before the corresponding tag 2' is confirmed in step S105. In this case, in this embodiment, the person in charge of work returns to the RFID tag 2 before the corresponding tag 2 'and holds the RFID reader 3 in the same manner, and the same steps as described above are performed. If it is confirmed that the work affirmation before the corresponding tag 2 'is all in the completed state (S106), the work start information is set to "ON" via the RFID reader 3 for the corresponding tag 2' (S107). In response to this signal, the corresponding tag 2 ′ allows the portable information device 4 that has been approached to read the contents of the work manual stored in the RFID tag 2 ′ itself, and the reading is performed. The work manual is displayed on the screen (S108).

  Next, information in the RFID tag 2 will be described with reference to FIG.

  In the RFID tag 2, a work start state and a work completion state flag can be recorded. Also, when the work is completed, information on the completion date can be recorded.

  The information written in the RFID tag 2 in the work process table 1 is the work process of the corresponding tag itself when the work manual is already read through the portable information device 4 of the person in charge of the work group. Is in the “start state”, and the “work start flag is ON” in the corresponding tag. In the example of FIG. 4, among the RFID tags 2, the tag 2 c has a work process in the “starting state” but has not yet completed the work process (information on completion of the work process is input from any portable information device) Therefore, the “work completion flag is OFF” remains. Further, since the work has not been completed, the completion date / time is not registered.

  On the other hand, the RFID tags 2a and 2b represent a work completion state, and are in a state of “work start flag and work completion flag are ON”. In addition, because the work is completed, the completion date and time is also registered.

  Next, with reference to FIG. 5, a description will be given of the work state confirmation process before the corresponding tag 2 ′ (the approached RFID tag) executed in step S105 in FIG.

  The portable information device 4 approaching the corresponding tag 2 ′ uses the RFID tag work process registered in advance in a database built in the portable information device based on the ID number of the corresponding tag 2 ′ read by the RFID reader 3. From the order information, information on which RFID tag is before is obtained based on the process position of the corresponding tag 2 '(S201). Here, the RFID reader 3 confirms the state of the work process of these tags by returning to the RFID tags before the corresponding tag (S202, S204), and the mobile phone approaching whether both “work completion flag is ON” The information device 4 determines (S203, S205). In this case, if all the work processes of the RFID tags 2a and 2b before the corresponding tag 2 'are completed, the portable information device 4 returns to the corresponding tag 2' and the portable information device 4 A flag “'all previous work steps are complete” is transmitted to the corresponding tag 2 ′. In response, the corresponding tag 2 'permits the work manual reading process there and reading continues (S206). When the RFID tag 2 before the corresponding tag 2 ′ has “completion flag OFF”, the portable information device 4 displays a message indicating that the contents of the work manual of the corresponding tag 2 ′ cannot be displayed ( S207).

  In steps S203 to S205, instead of the above method, the mobile device 4 approaching the corresponding tag 2 'accesses the database of the mobile device 4 of another work team (other work manager) wirelessly. The work history of the work group may be confirmed, and it may be confirmed whether or not the work process before the corresponding tag 2 'is in a completed state.

  Next, a registration method relating to the completion of the work process to the corresponding tag 2 ′ when the work is completed will be described with reference to FIGS.

  After receiving the work completion report from the worker (S301), the work manager confirms the work completion by the witness (S302). When the work is completed, the RFID reader 3 of the portable information device 4 is brought close to the front part of the helmet 10 of the witness, and the work completion authentication data is acquired via the RFID tag 11 for work completion authentication worn by the witness. (S303). The portable information device 4 confirms whether or not the acquired ID has authority to witness (S304), and if it is authorized, registers the name corresponding to the ID and the current date and time in the portable information device 4 (S305). At this time, the "change impossible flag is set to ON" so that the saved contents cannot be changed, and data rewriting is prevented (S306).

  An RFID tag 11 is attached to the witness's helmet 10 in advance. The RFID tag 11 is registered with information having the authority to witness, its name, and ID number. On the other hand, certifier data (certifier name, ID number) for verification is also registered in the database of each portable information device 4. Has been. The RFID tag 11 is attached to the inside of the helmet so as not to receive external shocks. The attachment position is attached to the front part of the helmet 10 so that the person in charge of the work can easily read the RFID tag 11 using the RFID reader 3.

  After obtaining the above-mentioned work completion authentication, the work manager holds the RFID reader 3 over the RFID tag 2 ′ of the work contents performed this time in the process table 1 to turn on the “work completion flag” and simultaneously complete the completion date and time. Is written to the corresponding tag 2 'together with the witness data.

The work process management system according to the above-described embodiment is configured by the following means. That is,
(1) Means (portable information device 4) for displaying the work status (including unstarted and completed status) of each work process at a different location by applying a reader 3 having an information reading function to the corresponding tag 2 (2) means (portable information device 4) for inputting work start information to the corresponding tag 2 storing work information to be started; and (3) corresponding tag 2 storing work information to be started. A means (portable information device 4) for displaying the contents including the procedure of the work, points to be noted, and the reader.
(4) Means (portable information device 4) for inputting work completion information to a corresponding tag storing the work information after the work is completed, and (5) the names of workers and witnesses and the Means for registering the date and time (authentication tag 11, portable information device 4).

  According to this embodiment, it is possible to provide a work manual without duplication to each work group on the condition that the correct work procedure is performed, prevent work mistakes, and at the same time, add workers and witnesses to the work schedule. Thus, it is possible to realize a work process management system capable of reducing labor by handwriting and the like, and improving work efficiency.

The figure which shows the structural example of the work process management system by this invention. The figure which shows the state which acquires a work manual via the information medium of a work process management table | surface using the said system. The figure which shows the flow of the operation | work condition confirmation operation | movement at the time of starting an operation | work process using the said system. The figure which shows the flag information in the information medium (RFID tag) used for the said system. The figure which shows the flow of the work state confirmation process before the applicable tag performed by step S105 of FIG. The figure which shows the registration method at the time of the completion of work using the said system. The figure which shows the flow of the registration method at the time of completion of the operation | work of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Process table, 2 ... RFID tag (information medium), 3 ... RFID reader, 4, 5 ... Portable information device, 11 ... RFID tag for work completion authentication.

Claims (13)

In the work process management system for work work consisting of a plurality of work processes, the places where these work processes are performed are distributed in plural, and a plurality of workers are assigned to the distributed work places to carry out on the way,
A work process table for displaying the order of a plurality of work processes together with a plurality of information media storing information related to work required for each work process;
A plurality of information devices having a function of obtaining work information of a corresponding work process by approaching each information medium of the work process table and a function of displaying the obtained information given to any plurality of workers; ,
A work process management system comprising: In claim 1,
In addition to a function of obtaining work information from the information medium, the information equipment has a function of inputting, adding, and updating work information from the information equipment to the information medium. In claim 1 or 2,
The information medium is a work process management system having a function of storing work information held by an information device that has been approached. In any one of Claims 1 thru | or 3,
A work process management system comprising a server for centrally managing the work information. A work process chart displaying the order of a plurality of work processes with a plurality of information media storing work manuals necessary for each work process;
A plurality of portable information devices having a function of giving an operation manual of the corresponding operation process by approaching each information medium of the operation process table and a function of displaying the acquisition manual given to any plurality of operators; With
Each information medium in the work process table determines whether or not the work manual has already been obtained by another worker when the worker has attempted to obtain the work manual via the portable information device. In the case where another worker has already obtained, at least a message to that effect is given to the portable information device, or a function for prohibiting obtaining the work manual to the portable information device is provided. Work process management system. In claim 5,
The plurality of information media indicating the order of work processes are made up of ID (Identification) tags that identify work processes and store work manuals of the corresponding work processes,
The portable information device comprises an ID reader,
The ID tag is set so that after the work manual therein is read by one of the ID readers, the same work manual cannot be obtained by another operator after the interlock. Work process management system. In claim 6,
The ID tag is a work process management system including an RFID (Radio Frequency Identification) tag that performs recognition and certification using radio waves. In any one of Claims 5 thru | or 7,
The information medium in each work process of the work process table has not been obtained by another worker when the operator has read the work manual through the portable information device. In addition, a work process management system that is set to permit reading on the condition that the work process before the work process is completed or started. In any one of Claims 5 thru | or 8,
When a predetermined work process is completed, information on the completion of the work can be written to the information medium corresponding to the corresponding work process in the work process table by using the portable information device of the worker engaged in the work, and the information is written to the information medium. The work process management system makes it possible to notify the other workers of the work completion information via their portable information devices. In any one of Claims 5 thru | or 9,
A work process management system in which the information medium in the work process table includes a work manual for the corresponding work process, including points to be noted and know-how information for each work. In any one of Claims 5 to 10,
The work process management system further includes an information medium for work completion authentication worn by a witness of work completion confirmation,
Each portable information device possessed by an operator is configured to be able to receive work completion authentication by approaching the information medium for authentication of the witness, and information related to this authentication and the witness can be obtained from the portable information device. A work process management system which is set so that it can be written to a corresponding one of the information media constituting the work process table. In the work process management system for work work consisting of a plurality of work processes, the places where these work processes are performed are distributed in plural, and a plurality of workers are assigned to the distributed work places to carry out on the way,
Means for displaying the work status of each work process by applying a reader having an information reading function to a corresponding tag storing work information;
Means for inputting work start information into a corresponding tag storing work information to be started;
Means for applying the reader to a corresponding tag storing work information to be started and displaying the contents of the work procedure and points to be noted;
Means for inputting work completion information into the corresponding tag storing the work information after the work is completed;
Means for registering the names and dates of workers and witnesses when the work is completed;
A work process management system comprising: In claim 12,
A means for preventing alteration by providing a data change impossibility flag before inputting work completion information,
A witness who confirms the completion of work also attaches a tag and confirms the authority of witness through this tag,
A work process management system comprising:

Images