JP6862985B2 - Work instruction system - Google Patents

Description

The present invention relates to a work instruction system that instructs a worker on a work content on a production line.

Conventionally, a work instruction system for displaying work instructions for workers on a terminal device has been proposed in factories and the like. As a result, man-hours and resources can be reduced as compared with creating an instruction villa in which work instructions are written on paper or the like.

For example, Patent Document 1 discloses a work instruction terminal that sequentially displays work instructions for a predetermined work (work object) to a worker at a work station. When displaying the current work instruction for the work, this work instruction terminal also displays the previous work instruction for the work so that it is possible to reconfirm that the work has not been forgotten and prevent work omissions. ing.

Further, in Patent Document 2, a work instruction terminal that moves together with a work along a production line switches a display according to passing through each predetermined signal connection portion, and the work is for a worker between the signal connection portions. It discloses that the work instruction for is displayed.

Japanese Unexamined Patent Publication No. 2002-108437 Japanese Unexamined Patent Publication No. 2015-32051

In the line work, as a general rule, each worker works on one work that passes through his / her position within a predetermined period according to the traveling speed of the line. However, in reality, the time required for the work varies depending on the work content and the proficiency level of the worker, so the work may be completed early within the predetermined period, and the work is not completed within the predetermined period. The work may be continued for a while after the period has passed. Therefore, there are cases where it is desired to confirm the next work instruction as soon as the work is completed within the period, and there are cases where it is desired to continuously confirm the work instruction for the work which is not completed within the period.

In the example disclosed in Patent Document 2, even if the worker wants to confirm the next work instruction early, only the work instruction of the previous process is displayed until the next work passes a predetermined position. Also, even if you want to continue to check the current work instruction, when you pass the next predetermined position, it will switch to the work instruction in the subsequent process and you will not be able to check it. Further, since the example disclosed in Patent Document 1 simultaneously displays two work instructions for the same work, it is not possible to confirm each work instruction for different works traveling on the line.

The present invention has been made in view of the above problems, and a worker assigned to the production line gives a work instruction to a work on the upstream side or a work instruction on the downstream side of the current work (next time). The purpose is to provide a work instruction system that can confirm (or the previous work instruction).

In order to solve the above problems, the present invention is a work instruction system including a server device for creating work instructions for workers arranged on a production line and a terminal device for displaying work instructions on a display screen. The server device creates a work instruction for each work position for each work moving on the production line and transmits it to the terminal device via the network. The terminal device receives the work instruction and gives the worker a work instruction for the current work, a work instruction for the work one upstream of the current work, and a work instruction for the work one downstream of the current work. Display at least one at the same time.

According to the present invention, the worker can confirm the work instruction for the work on the upstream side or the work instruction on the downstream side (next or previous work instruction) together with the work instruction for the current work on the terminal device. Therefore, if the work on the current work is completed within the period, the preparation for the next work can be started early, or if the work is not completed within the period, the work is continued while checking the work instruction. Can be done.

Functional block diagram of the work instruction system according to the embodiment of the present invention A flowchart showing the processing of the work instruction system according to the embodiment of the present invention. A diagram showing a display screen according to an embodiment of the present invention and a diagram showing how a work moves on a production line. A diagram showing a display screen according to an embodiment of the present invention and a diagram showing how a work moves on a production line. The figure which shows the display screen which concerns on one Embodiment of this invention

(Overview)
In the present invention, the terminal device at each position of the production line receives a work instruction from the server, and on the screen of the terminal device, the worker at that position is given a work instruction for the current work and one upstream side thereof. It is a work instruction system that displays at least one of a work instruction for the work of the work and a work instruction for the work on the downstream side. The worker can confirm at least one of the work to be performed next and the work to be performed before the work to be performed next and the work to be performed before the work currently in the position of the terminal device at the position of the worker.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

(Embodiment)
FIG. 1 is a functional block diagram of a work instruction system 10 according to an embodiment of the present invention. The work instruction system 10 includes a server device 200, a wireless LAN device 300, a PC (Personal Computer) 400, one or more terminal devices 100-1, ..., 100-n (n is a natural number). When the terminal devices are generically referred to, or when focusing on any one, the term terminal device 100 is used.

The server device 200 includes a processor, a storage device, and the like, and creates and stores work instructions for each work (work object) moving on the production line. Work instructions are created for each work for each work position for workers at each work position on the production line. The server device 200 and the terminal device 100 are connected by a network such as a wireless network by a wireless LAN device 300. The server device 200 transmits a work instruction to the terminal device 100. The PC 400 is connected to the server device 200 and is used when performing various inputs and settings to the server device 200. For example, the PC 400 can receive the input of the work instruction content from the user and transmit it to the server device 200. The server device 200 may include a user interface such as a keyboard and a display, and may also have the functions of the PC 400. The terminal device 100 is, for example, a tablet-type device, and includes a communication device and an image display device. Each terminal device is, for example, arranged at a work position of each worker along the production line, and receives and displays a work instruction for the worker at the work position from the server device 200.

FIG. 2 is a flowchart showing the processing of the work instruction system 10. The processing procedure will be described below.

<Processing procedure>
Step S101: The server device 200 receives information representing the contents of each work instruction from the PC 400. This information is input to the PC 400 by the manager of the production line or the like based on the production plan. The server device 200 creates a work instruction based on the received information. The server device 200 can also receive other information from the PC 400 and make various other settings. After this step, the process proceeds to step S102.

Step S102: The server device 200 transmits information necessary for display processing by each terminal device 100 to the terminal device 100 via a wireless network. This information includes, for example, timing notification described later, in addition to the work instruction. After this step, the process proceeds to step S103.

Step S103: The terminal device 100 displays a work instruction on the display screen based on the information received from the server device 200. An example of the display screen will be described later. After this step, the process proceeds to step S104.

Step S104: The server device 200 determines whether or not untransmitted work instructions still remain, and if so, proceeds to step S102. If there are no unsent work instructions left, the process ends.

The above processing is an example, and it is possible to carry out by another processing procedure. In step S102, only those work instructions necessary for the next display process may be transmitted, or a larger number of work instructions may be collectively transmitted in advance. Further, the work instruction is updated based on the timing notification. The timing indicated by the timing notification is the timing at which the work instruction to the worker should be updated in conjunction with the movement of the work from the upstream side to the downstream side on the production line and the change of the work to be worked by the worker. It is defined as. For example, what was a work instruction (current work instruction) for a work currently in its own process to a certain worker is a work instruction (work instruction) for a work one downstream (one process after) at this timing. The previous work instruction to the worker) and the work instruction to the work on the upstream side (the previous process) (the next work instruction to the worker) are at this timing. It becomes the current work instruction to the worker. The timing notification may be periodically transmitted at each such timing, or data such as a time representing such timing may be transmitted in advance. Further, the display process (step 103) of the terminal device 100 is also performed based on the timing represented by the timing notification. However, at least a part of the display process may be appropriately performed at an opportunity other than the timing notification, such as an operation from the worker to the terminal device 100.

<Display screen example 1>
An example of a work instruction display screen displayed by the terminal device 100 in step S103 described above will be described.

FIG. 3 shows an example (a) of the display screen of the terminal device 100 and an example (b) of the workpieces 598, 599, 600, and 601 moving on the production line.

The display screen 120 of the terminal device 100 is divided into a main indicator 121 and a sub-indicator 122 having a smaller area. In the example shown in FIG. 3A, a work instruction for the current work 600 that has moved from the previous process to the own process is displayed on the main instruction unit 121. Further, the sub-instruction unit 122 displays a work instruction for the work 599 on the downstream side that moves from the own process to the subsequent process. The main instruction unit 121 and the sub instruction unit 122 are provided as work instructions on the parts themselves or on the parts shelf to identify the corresponding work number, work type, number of parts to be attached to the work, and parts. Various information such as symbols and the color of the identification tape is displayed. Based on this display, the worker can understand the work instruction to himself / herself for each work. As shown in the figure, the main indicator 121 displays an image of a work (for example, an automobile engine) as an aid in understanding work instructions, and superimposes a work location such as a mounting position of a component on the image of the work (for example, an automobile engine). May be good.

In this way, the work instruction to the current work 600 and the work instruction to the work 599 on the downstream side thereof are simultaneously displayed on the display screen 120. As a result, as shown in FIG. 3B, when the work 600 moves to its own process and the period for performing the work on the work 600 is started, the work on the work 599 is not completed. , The work on the work 599 can be continued while confirming the work instruction on the work 599 displayed on the sub-instruction unit 122. Further, after the work on the work 599 is completed, the work instruction on the work 600 displayed on the main instruction unit 121 can be confirmed immediately, and the work on the work 600 can be started.

<Display screen example 2>
In step S103 described above, another example of the work instruction display screen displayed by the terminal device 100 will be described. The same points as in the above example will be omitted.

FIG. 4 shows an example (a) of the display screen of the terminal device 100 and an example (b) of the workpieces 599, 600, 601 and 602 moving on the production line.

In the example shown in FIG. 4A, a work instruction for the current work 600 that has moved from the previous process to the own process is displayed on the main instruction unit 121. Further, the sub-instruction unit 123 displays a work instruction for the work 601 on the upstream side, which is currently in the previous process and moves to the next own process.

In this way, the work instruction to the current work 600 and the work instruction to the work 601 on the upstream side thereof are simultaneously displayed on the display screen 120. As a result, as shown in FIG. 4B, if the work 600 is in the own process and the work on the work 600 is completed early while the next work 601 is still in the previous process, the sub It is possible to confirm the work instruction to the work 601 displayed on the instruction unit 123 at an early stage and prepare for the work.

<Display screen example 3>
In step S103 described above, still another example of the work instruction display screen displayed by the terminal device 100 will be described. The same points as in the above example will be omitted.

FIG. 5 shows an example of a display screen of the terminal device 100. The example shown in FIG. 5 has the characteristics of Examples 1 and 2 described above. The main instruction unit 121 displays work instructions for the current work 600 that has moved from the previous process to its own process. As sub-indicator units, sub-indicator units 122 and 123 are provided on the left and right sides of the main instruction unit 121, respectively, and one of the sub-indicator units 122 is currently in the previous process and moves to the next own process. A work instruction for the work 601 on the upstream side is displayed, and a work instruction for the work 599 on the downstream side, which moves from the own process to the subsequent process, is displayed on the other sub-instruction unit 123. As a result, the previous work instruction and the next work instruction can be confirmed at the same time as the current work instruction, and the effects of both Examples 1 and 2 described above can be obtained.

On the display screen 120, as an example, as shown in FIGS. 3, 4, and 5, the area of the main indicator 121 is preferably larger than the area of the sub-indicators 122 and 123. The area of the sub-indicators 122 and 123 can be reduced by displaying only the minimum necessary symbols. As a result, since the work instruction to the current work is conspicuous, it is possible to prevent confusion with the work instruction to the work on the upstream side or the downstream side.

Further, it is preferable that the arrangement of the sub-indicators 122 and 123 corresponds to the traveling direction of the work. Specifically, when the work moves from left to right when viewed from the worker, as shown in FIGS. 3, 4, and 5, the position of the sub-instruction unit 123 indicating the next work instruction is set as the main instruction unit. If the left side of the 121 is set and the position of the sub-instruction unit 122 indicating the previous work instruction is the right side of the main instruction unit 121, the correspondence between the work and the work instruction can be easily understood. When the work moves from right to left when viewed from the worker, the arrangement of the sub-indicators 122 and 123 may be the opposite of the examples shown in FIGS. 3, 4, and 5.

When switching the display contents of the main instruction unit 121, the sub instruction unit 122, and 123 in order to update the work instruction, if the display contents are switched instantly, if the worker is looking away from the display screen 120 at that moment, the switching is performed. You may not notice it. Therefore, it is preferable to dynamically and gradually change the display positions of the main indicator 121, the sub indicator 122, and 123 as the work moves. For example, the sub-instruction unit 122 indicating the previous work instruction is slid out from the display screen 120 in the direction of the subsequent process, and the sub-instruction unit 123 indicating the next work instruction is slid in to the display screen 120 from the direction of the previous process. The main instruction unit 121 indicating the current work instruction may be slid in the display screen 120 so as to be sandwiched between the sub instruction units 122 and 123. As a result, the display contents are switched over a predetermined time, so that even if the worker temporarily takes his eyes off, he / she can easily notice it.

The various display modes described above are examples and can be appropriately modified and implemented. In addition, the display mode can be appropriately customized by the user. For example, it may be possible to change whether or not to display each of the previous work instruction and the next work instruction. Further, the display start timing of the next work instruction, the display end timing of the previous display end timing, and the like may be changed. Further, in each of the above examples, the image of the work is displayed on the main instruction unit 121, but it may be possible to set whether or not to display the image. Further, the arrangement of various symbols constituting the work instruction may be made customizable, and may be set so as to be arranged in the same order as the work procedure, for example. Such changes in the setting contents can be made, for example, by the user inputting the setting contents to the PC 400 or the terminal device 100.

In particular, by operating the terminal device 100 by the worker himself / herself, (1) a screen for displaying work instructions for the work 601 on the upstream side and the current work 600 (for example, the screen shown in FIG. 4A). , (2) A screen displaying only work instructions to the current work 600, and (3) a screen displaying work instructions to the current work 600 and the work 599 on the downstream side (for example, (a) in FIG. 3). The screen shown) may be switched at any time.

Further, by operating the terminal device 100 by the worker himself / herself, (1) a screen for displaying only the work instruction for the work 601 on the upstream side, and (2) a screen for displaying only the work instruction for the current work 600. , (3) The screen displaying only the work instruction for the work 599 on the downstream side may be switched at an arbitrary timing.

In these cases, for example, while normally only displaying the work instruction for the current work is automatically updated based on the timing notification, the worker temporarily works on one upstream or downstream work as needed. Instructions can be displayed for confirmation.

The present invention is useful for a work instruction system or the like instructing a worker on a work content on a production line.

10 Work instruction system 100 Terminal device 120 Display screen 121 Main instruction unit 122 Sub instruction unit 123 Sub instruction unit 200 Server device 300 Wireless LAN device 400 PC
598, 599, 600, 601 and 602 workpieces

Claims (2)

A work instruction system including a server device for creating work instructions for workers placed on a production line and a terminal device for displaying the work instructions on a display screen.
The server device creates a work instruction for each work position for each work moving on the production line, and transmits the work instruction to the terminal device via the network.
The terminal device is
Upon receiving the work instruction, the work instruction for the current work to the worker, the work instruction for the work one upstream of the current work, and the work instruction for the work one downstream of the current work At least one is displayed on the display screen at the same time.
A main instruction unit for displaying work instructions for the current work to the worker is displayed in a part of the display screen.
In the remaining area of the display screen, a sub-instruction unit for displaying a work instruction for the work on the upstream side of the current work to the worker and a work instruction for the work on the downstream side of the current work are displayed on the worker. Display at least one of the sub-indicators to display
A work instruction system that displays the main instruction unit and the sub instruction unit on the display screen so that the display position gradually changes as the work moves. The terminal device displays the main instruction unit and the sub instruction unit on the display screen so that the direction of the sub instruction unit as seen from the main instruction unit corresponds to the traveling direction of the work. Described work instruction system.

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