JP4871851B2 - Work management system and management bulletin board - Google Patents

Description

  The present invention relates to a technique for managing the progress of work divided into a plurality of work processes (hereinafter also simply referred to as “processes”).

  Instead of the conventional mass production method, a so-called JIT (Just In Time) production method in which a necessary product is provided to a necessary place in a necessary amount when necessary has been adopted in recent years. . When the JIT production method is adopted, there is no problem of having a large amount of inventory, but care must be taken so that work efficiency does not decrease.

In relation to this, for example, in Patent Document 1, a display means (magnet, card, etc.) that identifies a work object and a work process management bulletin board that holds the magnet are used to operate according to the holding position of the display means. The technology for managing the progress and the like is disclosed. Such a work process management bulletin board is installed for each process area, the display means and the work object are moved in pairs, and the display means is held on the work process management bulletin board of the process during the work. By doing so, the progress of each work can be managed.
JP-A-8-243863

  However, in the prior art described above, in order to grasp the status of each work, the general manager or the like must actually go to each work process management bulletin board and visually check the display means, which is inefficient. There was a problem that it was difficult (and time-consuming).

  Therefore, the present invention has been made to solve the above problems, and an object thereof is to efficiently manage the progress of work divided into a plurality of steps.

In order to solve the above-mentioned problems, the present invention divides a predetermined work on a work object into a plurality of work processes, each of which is carried out in a separate work space, and information on the progress of those work Is a work management system that uses an IC tag in which information specifying the content of a predetermined work is written. A work management system includes: a management bulletin board having a plurality of repositionable panels that hold a plurality of IC tags by a holder; and a reader that reads information of the IC tags held in the holder of the panel; And a management device that is connected and includes a processing unit, a storage unit, and a display unit.
In the management device, the storage unit stores the standard required time for each work process and information on the deadline of each work, and the processing unit stores information on the IC tag received from the reader of the management bulletin board Using the information related to the work deadline stored in the storage unit and the standard time required for each work process, it is determined that the work that has passed the standard time required before the deadline is delayed. Then, the fact that the work is delayed is displayed on the display unit. Other means will be described later.

  According to the present invention, it is possible to efficiently manage the progress of work divided into a plurality of steps.

Hereinafter, the best mode for carrying out the present invention (hereinafter referred to as “embodiment”) will be described with reference to the drawings (other than the reference drawings as appropriate).
FIG. 1 is an overall configuration diagram showing a work management system of the present embodiment. The work management system S includes a work place 10 and a management server 20 (management device).

  The work place 10 includes six work spaces including a part processing space 11, a part inspection space 12, a painting space 13, a part assembly space 14, a main body assembly space 15, and a main body inspection space 16. In these six work spaces, management bulletin boards 17a to 17f (17) (details will be described later in FIG. 2) are installed one by one. Each work space may be a separate room, each may be partitioned by a partition, or there may be no partition or the like between them. In each work space, each work is performed by a worker, and the work object is a pair with a work instruction card 31 (IC tag) (details will be described later in FIG. 2), and the arrows in FIG. Moved in order.

  Each management bulletin board 17 is connected to a management server 20 via a LAN (Local Area Network) 18 which is a communication network in the work management system S. In place of the LAN 18, a communication technique such as wireless or power line carrier may be used.

  The management server 20 is an apparatus that performs information processing, and is realized by a computer, for example. The management server 20 includes a processing unit 21, a storage unit 22, a communication unit 23, an input unit 24, and a display unit 25.

  The processing unit 21 stores information received from the management bulletin board 17 in the storage unit 22 or performs an operation based on the information stored in the storage unit 22. For example, the processing unit 21 uses a CPU (Central Processing Unit). Realized.

  The storage unit 22 includes work status management information 221 (details will be described later in FIGS. 3A and 3B), work progress management information 222 (details will be described later in FIG. 4), individual management information 223 (details will be described later in FIG. 5), Means for storing standard time required information 224, location determination threshold information 225, an execution program (not shown) of the processing unit 21, and the like, for example, RAM (Random Access Memory), ROM (Read Only Memory), hard disk, etc. Realized.

  The process-specific standard time information 224 is information regarding the standard time required for each work process. This standard required time may be, for example, a time calculated from information such as personnel cost, equipment cost, material cost, or average time, shortest time, longest time, etc. calculated from statistical information on actual work time. There may be. In addition, the standard work time may not be fixed, and may be updated using the above average time or the like every certain time (1 hour or the like).

  The whereabouts determination threshold information 225 is information regarding a threshold (for example, 10 minutes) for determining that the whereabouts are unknown when the work instruction card 31 is not held in any management bulletin board 17.

The communication unit 23 is a communication interface for connecting to the management bulletin board 17 via the LAN 18.
The input unit 24 is a means for the user of the management server 20 to input information, and is, for example, a keyboard or a mouse.
The display unit 25 is a means for displaying information according to an instruction from the processing unit 21 and is, for example, a liquid crystal display.

  2A and 2B are diagrams showing the structure of the management bulletin board, in which FIG. 2A is a front view and FIG. 2B is a cross-sectional view taken along the line AA in the front view of FIG. The management bulletin board 17 is placed so that the surface shown in FIG. 2A faces the inside of each work space, but may be placed so as to face in another direction depending on the situation.

  As shown in FIGS. 2 (a) and 2 (b), the management bulletin board 17a (17) has a structure in which four casters 172 are attached to the bottom of the frame 171, and free movement by an operator or the like is possible. It is possible. Inside the frame 171, there are provided an antenna support portion 175 made of a single large plate, five vertically long plate antennas 176, and a card holder support panel 177 having approximately the same size as the plate antenna 176. . The antenna support 175 and the plate antenna 176 are fixed to the frame 171, but the card holder support panel 177 is movable (slidable) in the lateral direction with respect to the frame 171 and is removable. When removing the card holder support panel 177 from the frame 171, the card holder support panel 177 is once lifted upward, then the lower part is removed from the rail portion 179, and then the entire card holder support panel 177 is removed from the frame 171.

The rail portion 179 serves to support the bottom portions of the plate antenna 176 and the card holder support panel 177.
A cable 173 is connected to the bottom of the plate antenna 176, and the cable 173 is connected to an RFID (Radio Frequency IDentification) reader / writer 174. Note that the RFID reader / writer 174 (reader) also has a channel scanner function for switching operations with respect to the five plate antennas 176. The RFID reader / writer 174 is connected to the management server 20 by a cable 173 (LAN 18).

  A plurality of card holders 178 are fixedly installed on the card holder support panel 177. The card holder 178 can accommodate the work instruction card 31 therein. The work instruction card 31 includes a management number (such as “H0025”) for specifying the work (or work object) and a work deadline (such as “2/3 (February 3rd)”). The RFID tag 32 is attached. The RFID tag 32 holds the management number information in an internal circuit (IC (Integrated Circuit)).

  By the operation of the RFID reader / writer 174, a radio wave including a control signal is transmitted from the plate antenna 176 constantly or periodically (for example, every 10 seconds). The RFID tag 32 of the work instruction card 31 accommodated in the card holder 178 receives a radio wave from the plate antenna 176 and generates an electromotive force by a resonance action. Then, the RFID tag 32 activates an internal circuit with the generated power, performs necessary processing, and transmits the processing result to the plate antenna 176 by radio waves.

  The RFID reader / writer 174 that has received information from the plate antenna 176 that has received the radio wave can acquire information stored in the RFID tag 32. The RFID reader / writer 174 transmits information obtained from the RFID tag 32 to the management server 20 via the cable 173 (LAN 18).

  As described above, the card holder support panels 177 can be removed individually one by one. For example, if the operator decides to work by looking at the leftmost card holder support panel 177, he / she works 2/1 in the state of the management bulletin board 17 in FIG. 2 remove the leftmost card holder support panel 177 (2/1 minutes), slide the remaining four card holder support panels 177 to the left, and remove the removed card holder support panel 177 (2/1 minutes). By setting it to the rightmost, the card holder support panel 177 (2/2 minutes) can be moved to the leftmost.

Next, the work status management information 221 will be described with reference to FIG. 3A. FIG. 3A is a diagram illustrating an example of the work status management information 221.
As shown in FIG. 3A, in the “part processing” column with the date “2/1”, the card holder of the card holder support panel 177 for “2/1” in the management bulletin board 17a of the part processing space 11 is displayed. The work management number corresponding to the work instruction card 31 held in 178 is displayed.

  Similarly, in the “part inspection” column of “2/1”, work held by the card holder 178 of the card holder support panel 177 for “2/1” in the management bulletin board 17b of the part inspection space 12 is displayed. A work management number corresponding to the instruction card 31 is displayed. The same applies to the columns of “paint”, “part assembly”, “main body assembly” and “main body inspection” of “2/1”. The same applies to each column of “2/2”.

  The display is shaded (colored) in “H0010” in the “Parts assembly” column of “2/1” and “H0001” in the “Main body inspection” column of “2/1”. Means that work is delayed (details below). In addition, “H0011” in the “Other” column of “2/1” is “Unknown” because the RFID tag 32 of the work is not held in any management bulletin board 17 for a predetermined time or more. This means that the location was determined to be unknown (details will be described later).

  FIG. 3B is a diagram showing the work status management information 221 several hours after the time of the work status management information 221 in FIG. 3A. The work instruction cards 31 corresponding to the management numbers H0024, H0020, H0015, H0110, and H0106 have been moved to the management bulletin board 17 for the next process because each work has been completed. Further, it can be seen that the work instruction card 31 corresponding to H0001 has been removed from the management bulletin board 17f because the main body inspection as the final work has been completed. 4 and 5 to be described later correspond to the time point of FIG. 3B.

Next, the work progress management information 222 will be described with reference to FIG. FIG. 4 is a diagram illustrating an example of the work progress management information 222.
As shown in FIG. 4, in the work progress management information 222, each management number is associated with plan and actual information regarding six work processes from parts processing to main body inspection. Here, the plan means a scheduled completion date (or a scheduled completion date). The actual result indicates the date (or date / time) when the work is actually completed.

  For example, regarding the management number “H0001”, five work processes from “part processing” to “main body assembly” are completed as planned, and “main body inspection” indicates that the work is completed one day later than planned. ing. Regarding the management number “H0002”, five work processes from “part processing” to “main body assembly” are completed as planned, and “main body inspection” is incomplete. The same applies to other management numbers.

Next, the individual management information 223 will be described with reference to FIG. FIG. 5 is a diagram illustrating an example of the individual management information 223.
As shown in FIG. 5, in the individual management information 223, the plan, IN, OUT, and LT are related to the work corresponding to one management number (here, “H0024”) with respect to six work processes from part processing to main body inspection. (Lead Time) information is associated. Here, IN indicates the date and time when the work instruction card 31 was placed in the card holder 178 of the work bulletin board 17 for the work process. Further, OUT indicates the date and time when the work instruction card 31 is issued from the card holder 178. Furthermore, LT indicates the date / time of OUT from the date / time of IN, that is, the time required for the work in the process.

  Next, processing of the management server 20 will be described with reference to FIG. FIG. 6 is a flowchart showing the processing of the management server 20. The management server 20 performs the operation of this flowchart periodically (for example, every 10 seconds).

First, the processing unit 21 acquires information on the work instruction card 31 held in the card holder 178 from each of the management bulletin boards 17a to 17f (step S1).
Next, the processing unit 21 updates each management information, that is, the work status management information 221, the work progress management information 222, and the individual management information 223 based on the information obtained in step S1 (step S2).

  Subsequently, the processing unit 21 determines whether there is a delayed work (step S3). Specifically, for example, if the deadline is “2/1 14:00” and the standard required time is “2 hours” for a certain work process based on the individual management information 223 and the standard required time information 224 for each process. Then, the work may be calculated as “delayed work” at the time of “2/1 12:00”.

  When it is determined that there is a delay work (Yes in Step S3), the processing unit 21 notifies the delay (Step S4). For example, when the work status management information 221 (see FIGS. 3A and 3B) is displayed on the display unit 25, the delay notification is indicated by shading the management number of the corresponding work (“H0001” and “H0010” in FIG. 3A). To do so. A screen for displaying only the management number of the delayed work may be provided separately.

  After step S3 is No or after step S4, the processing unit 21 determines whether there is a work instruction card 31 whose location is unknown (step S5). Specifically, referring to the location determination threshold value information 225 in the storage unit 22, if there is a work instruction card 31 that is not held for a threshold time (for example, 10 minutes) in any of the management bulletin boards 17, “location is unknown” Is determined.

When it is determined that there is a work instruction card 31 whose location is unknown (Yes in step S5), the processing unit 21 notifies the location unknown (step S6). For example, when the work status management information 221 (see FIGS. 3A and 3B) is displayed on the display unit 25, this delay notification displays the management number of the corresponding work in the “Others” column and also “Unknown”. May be displayed. Further, when the work progress management information 222 (see FIG. 4) is displayed on the display unit 25, “not sure” may be displayed in the “remarks” column of the management number row of the corresponding work. Furthermore, a screen for displaying only the management number whose location is unknown may be provided separately.
In step S5, No or after step S6, the processing unit 21 returns to step S1.

As described above, according to the work management system S of the present embodiment, when the general manager or the like grasps the status of each work or the like, it is not necessary to actually go to each management bulletin board 17 and perform a plurality of processes. It is possible to efficiently manage (understand) the progress of the divided work in a batch.
In addition, an alarm is not issued (notified) after the deadline of each work is exceeded, but an alarm is issued by back-calculating the standard required time from the deadline, so that a delayed work can be quickly handled.

Furthermore, by determining that the work instruction card 31 that is not held in any of the management bulletin boards 17 for a threshold time (for example, 10 minutes) is unknown, the fact that the work instruction card 31 is unknown can be confirmed reliably. It is possible to grasp quickly.
In the management bulletin board 17, the card holder support panels 177 can be individually removed one by one and slidable in the lateral direction, so that the card holder support panel 177 corresponding to the work for the day is always arranged on the leftmost side. Can be easily realized.
Furthermore, since the management bulletin board 17 itself can be moved, it is easy to use.

Although description of this embodiment is finished above, the aspect of the present invention is not limited to these.
For example, in FIG. 2A, the number of card holder support panels 177 is five, but other numbers may be used. In addition, a card holder support panel 177 dedicated to the delayed work may be provided separately.

In addition, the RFID tag 32 is a battery-free type that is advantageous in terms of downsizing and cost reduction, and is a type that obtains power from received radio waves, but may be a battery-mounted active tag.
Further, the work instruction card 31 may be provided with a plan for each work process, a work completion date and time, a column for entering (or stamping) the worker, and the like.

The plate antenna 176 may not be the same size and number as the card holder support panel 177.
Furthermore, although the RFID reader / writer 174 and the management server 20 are connected by a wired LAN 18, they may be communicable by a wireless LAN or the like.
In addition, specific configurations such as hardware and flowcharts can be appropriately changed without departing from the spirit of the present invention.

It is a whole lineblock diagram showing the work management system of this embodiment. It is a figure which shows the structure of a management bulletin board, (a) is a front view, (b) is sectional drawing of the AA arrow in the front view of (a). 5 is a diagram illustrating an example of work status management information 221. FIG. It is a figure which shows the work condition management information 221 several hours after the time of the work condition management information 221 of FIG. 3A. 5 is a diagram illustrating an example of work progress management information 222. FIG. It is a figure which shows an example of the individual management information 223. 5 is a flowchart showing processing of the management server 20.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Work place 11 Parts processing space 12 Parts inspection space 13 Painting space 14 Parts assembly space 15 Main body assembly space 16 Main body inspection space 17 Management bulletin board 20 Management server 21 Processing part 22 Storage part

Claims (3)

The predetermined work for the work object is divided into a plurality of work processes, each of the plurality of work processes is performed in different work spaces, and information on the progress of the work is specified for the contents of the predetermined work. Is a work management system that manages using an IC tag written with
A management bulletin board having a plurality of repositionable panels that hold the plurality of IC tags by a holder, and a reader that reads information of the IC tags held in the holder of the panel;
A management device connected to the reader of the management bulletin board and having a processing unit, a storage unit and a display unit;
In the management device,
The storage unit stores a standard required time for each work process and information on the deadline of each work,
The processing unit uses the information on the IC tag received from the reader of the management bulletin board, information on the time limit of the work stored in the storage unit, and the standard required time for each work process, A work management system characterized in that a work that has passed a time before the standard required time is determined to be a delayed work, and that the work is delayed is displayed on the display unit. The processing unit identifies the IC tag that has not been held in any of the management bulletin boards for a predetermined time or more, and displays on the display unit that the IC tag is unknown. The work management system according to claim 1. The predetermined work for the work object is divided into a plurality of work processes, each of the plurality of work processes is performed in different work spaces, and information on the progress of the work is specified for the contents of the predetermined work. Is managed by a management apparatus using an IC tag in which is written, and the management apparatus determines in the work management system that the work that has passed the standard time required before the work deadline is judged to be delayed A bulletin board,
A plurality of repositionable panels that hold the plurality of IC tags by a holder, and a reader that reads information from the IC tags held by the holder of the panel and transmits the information to the management device. Management bulletin board to do.

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