JP6977296B2 - Work time measurement system and work instruction system using it - Google Patents

Description

The present invention relates to a work time measurement system and a work instruction system using the same.

Patent Document 1 describes a device that collects the working time of an operator by detecting the time when the operator is located in the vicinity of the working station. That is, the collecting device includes an ID tag to be carried by an operator, a receiving member provided in the work station to detect the entry / exit of the ID tag into the receivable area, and the ID tag entering the receivable area of the receiving member. It is equipped with a controller that collects the time spent as the working time of the worker.

Patent Document 2 describes that the work time of a worker is detected based on the input information by using the start button, the end button, and the pause button of the work input and operated by the worker.

Japanese Unexamined Patent Publication No. 2005-115722 Japanese Unexamined Patent Publication No. 2005-56272

When the work time is measured by the worker being located near the work station, for example, even if the worker is located near the work station, if there is a situation in which the worker is not working, appropriate work is performed. I can't measure the time. On the other hand, when the worker measures the work time by inputting the work start button, end button, pause button, etc., if the worker forgets to input, the appropriate work time cannot be measured.

An object of the present invention is to provide a working time measuring system capable of measuring a more appropriate working time. Furthermore, an object of the present invention is to provide a work instruction system using the work time measurement system.

(1. Working time measurement system)
The work time measurement system according to the first aspect of the present invention is input by the worker and an area sensor that detects that the worker is located in the work area for the worker to perform work related to the processing machine. At least one of the work start information, the work end information, the work interruption information, and the work restart information, or a composite information acquisition unit that acquires the operating status of the processing machine. It includes a work time measuring unit that measures the work time by the worker based on the detection information by the area sensor and the information acquired by the composite information acquisition unit, and the composite information acquisition unit is the processing machine. The work time measuring unit acquires the automatic operation start information as the operation status of the above, and when the acquisition time of the automatic operation start information is before the time when the worker leaves the work area, the automatic operation is performed. that determine the end time of the work based on the acquisition time of the operation start information.
The work time measurement system according to the second aspect of the present invention is input by the worker and an area sensor that detects that the worker is located in the work area for the worker to perform work related to the processing machine. At least one of the work start information, the work end information, the work interruption information, and the work restart information, or a composite information acquisition unit that acquires the operating status of the processing machine. The complex information acquisition unit includes a work time measurement unit that measures the work time by the worker based on the detection information by the area sensor and the information acquired by the composite information acquisition unit. The work time measuring unit acquires the end information of the work input by the person, and the work time measuring unit obtains the end information before the time when the worker leaves the work area. When the difference between the acquisition time and the exit time is within a predetermined time, the end time of the work is determined based on the acquisition time of the end information.
The work time measurement system according to the third aspect of the present invention is input by the worker and an area sensor that detects that the worker is located in the work area for the worker to perform work related to the processing machine. At least one of the work start information, the work end information, the work interruption information, and the work restart information, or a composite information acquisition unit that acquires the operating status of the processing machine. The complex information acquisition unit includes a work time measurement unit that measures the work time by the worker based on the detection information by the area sensor and the information acquired by the composite information acquisition unit. The start information of the work input by the person is acquired, and the work time measuring unit obtains the start information after the acquisition time of the start information is after the entry time of the worker into the work area. When the difference between the acquisition time and the approach time is within a predetermined time, the start time of the work is determined based on the acquisition time of the start information.

The working time measuring unit measures the working time by using the detection information by the area sensor and the information acquired by the compound information acquisition unit in combination. Therefore, it is possible to measure the working time more appropriately than when only the detection information by the area sensor is used.

(2. Work instruction system)
The work instruction system according to the present invention is a system that targets equipment provided with a plurality of processing machines and gives work instructions to each of a plurality of workers to the plurality of processing machines. The work instruction system includes an ability database for storing the work ability of the worker determined based on the work time measured by the work time measurement system described above, processing by the plurality of processing machines, and processing by the plurality of processing machines. The next work candidate to be performed by the worker is extracted based on the process plan storage unit that stores the process plan in which the execution order of the work by the worker is defined, the current state of the plurality of processing machines, and the process plan. The next work candidate extraction unit is provided, and the next work decision unit that determines the next work for a predetermined worker from the next work candidates based on the work ability stored in the ability database is provided.

The capacity database stores the work capacity determined based on the more appropriately measured work time. The next work decision unit decides the next work based on the work capacity. In this way, since the next work is determined based on the appropriately evaluated work ability of the worker, it can be expected to be executed according to the process plan.

It is a layout drawing which shows the structure of the work instruction system 1. It is a functional block diagram which shows the structure of the work instruction system 1. It is a figure which shows the process plan. It is a figure which shows the ability database 12. It is a flowchart which shows the process by a display instruction unit 15. The mobile device 23 is shown, and the state in which the initial screen is displayed is shown. The mobile device 23 is shown, and a state in which the next work instruction screen is displayed is shown. The mobile device 23 is shown, and the state in which the re-notification waiting screen is displayed is shown. The mobile device 23 is shown, and a state in which a working screen is displayed is shown. The mobile device 23 is shown, and the state in which the interrupted screen is displayed is shown. A time chart of each state of the area sensor 22, the portable device 23, and the processing machine MC2 in the first embodiment is shown, and the working time and the interruption time are displayed together. It is a flowchart which shows the work start time determination process by the work time measurement unit 17. It is a flowchart which shows the work end time determination process by the work time measurement unit 17. It is a flowchart which shows the interruption time calculation process by the work time measurement unit 17. A time chart of each state of the area sensor 22, the portable device 23, and the processing machine MC2 in the second embodiment is shown, and the working time and the interruption time are displayed together. It is a flowchart which shows the work start time determination process by the work time measurement unit 17. It is a flowchart which shows the work end time determination process by the work time measurement unit 17.

(1. First Embodiment)
(1-1. Configuration of work instruction system 1)
The configuration of the work instruction system 1 will be described with reference to FIGS. 1 to 4. The work instruction system 1 targets equipment provided with a plurality of processing machines MC1-MC3, and gives work instructions to each of a plurality of workers to the plurality of processing machines MC1-MC3. Further, the work instruction system 1 includes a work time measurement system 2 that measures the work time for each work type by each worker A, B, and C.

The plurality of processing machines MC1-MC3 are, for example, a production machine for producing various objects, a distribution machine for transporting the objects, and the like. The processing machines MC1-MC3 as production machines are machine tools such as machining centers, lathes, and grinding machines, and are arranged in a line.

The work instruction system 1 includes operation status acquisition devices 21 provided in each of the processing machines MC1-MC3. The operation status acquisition device 21 acquires the status of each of the processing machines MC1-MC3, such as a stopped state, an automatic operation state, an operation preparation state, and an abnormal stop state.

The stopped state is a state in which the power of the processing machines MC1-MC3 is turned off. The automatic operation state is a state in which automatic operation is performed according to an NC program when the processing machines MC1-MC3 are CNC (Computerized Numerical Control) machines. When the processing machines MC1-MC3 are general-purpose machines, there is no automatic operation state. The operation ready state is a state in which the power is on and not in an automatic operation state. The abnormal stop state is a state in which the state is stopped due to an abnormality. Generally, the signal tower mounted on the processing machines MC1-MC3 allows the operator to visually recognize each state.

The work instruction system 1 further includes an area sensor 22. The area sensors 22 are provided in each of the processing machines MC1-MC3, and are located in the vicinity of the corresponding processing machines MC1-MC3 (in the work area 22a (shown in FIG. 1)) by the workers AC. Detect whether or not. The work area 22a is an area set for the workers AC to perform work related to the processing machines MC1-MC3. The area sensor 22 acquires ID information of a communication device mounted on a mobile device 23 described later. That is, the area sensor 22 detects whether or not the communication device exists in the corresponding work area 22a by detecting the position of the portable device 23. In this way, the area sensor 22 detects whether or not the worker AC carrying the mobile device 23 is located in the work area 22a.

The area sensor 22 is not limited to the above configuration, as long as it can detect that the worker AC is located in the work area 22a. For example, the area sensor 22 may detect whether or not the device is located in the work area 22a by acquiring the position information of the GPS device mounted on the mobile device 23.

The work instruction system 1 further includes a portable device 23. The portable device 23 is portable by each of the workers AC. The portable device 23 includes a display device 23a for displaying work instructions and input buttons, an input device 23b capable of inputting information corresponding to the input button displayed on the display device 23a, and a communication device 23c. The display contents on the display device 23a will be described later.

The information that can be input by the input device 23b is work start information, work end information, work interruption information, work restart information, and work start re-notification information based on the input of the workers AC. be. Details of each information will be described later. The communication device 23c can communicate with the area sensor 22 described above, and has ID information that can be acquired by the area sensor 22. Further, the communication device 23c can communicate various information input to the input device 23b.

The work instruction system 1 further includes a management device 10. The management device 10 issues the next work instruction to the workers AC based on the information acquired from the operation status acquisition device 21, the area sensor 22, and the portable device 23. Further, the management device 10 measures the work time performed by the worker AC based on the information acquired from the operation status acquisition device 21, the area sensor 22, and the portable device 23.

The management device 10 includes a process plan storage unit 11, a capacity database 12, a next work candidate extraction unit 13, a next work decision unit 14, and a display instruction unit 15. As shown in FIG. 3, the process plan storage unit 11 defines a process plan in which the execution order regarding the processing by the plurality of processing machines MC1-MC3 and the work by the workers AC on the plurality of processing machines MC1-MC3 is defined. For example, the process plan storage unit 11 stores the process plan for one day.

In FIG. 3, the white frame is the work by the workers AC, and the hatch frame is the work by the processing machines MC1-MC3. FIG. 3 illustrates a case where the setup work is performed by the workers AC before the processing by the processing machines MC1-MC3. For example, the component a needs to be machined in the order of the processing machines MC1, MC2, and MC3, and the setup work by the workers AC is performed before each of the processing machines MC1-MC3.

Here, the process plan is predetermined by the manager based on, for example, the production plan of the object. Further, in the process plan, the work by the worker is set based on the above-mentioned standard work time. That is, when each work is performed in the standard work time, it is executed according to the process plan.

As shown in FIG. 4, the ability database (DB) 12 has an index value Lv indicating the high work capacity of each work type for each worker AC with respect to a plurality of workers AC and a plurality of work types. (Upper row), the work time for deriving the index value Lv (middle row), and the average interruption time (lower row) performed for one work are stored. Here, the work types are classified according to the parts ad to be produced and the processing machines MC1-MC3 to be used. For example, in the case of the component a, since the three processing machines MC1-MC3 are used, each of the processing machines MC1-MC3 is classified as each work type.

The work time is the shortest time required for one work of the target work type in the past. In addition to this, the work time may be the latest time required for one work when the work of the target work type is recently performed. Further, when the work of the work type is frequently performed, the work time is set to the shortest time, and when the work of the work type is performed only a small number of times such as twice a year, the work time is set. May be the latest time. The working time corresponds to the working time measured by the working time measuring unit 17 described later, and is updated as appropriate.

The index value Lv indicating the high working ability is determined based on the working time measured by the working time measuring unit 17. For example, the index value Lv becomes a higher value as the working time is shorter, and becomes a lower value as the working time is longer. In this embodiment, the index value Lv exemplifies five stages from 0 to 4. Index value Lv. 0 corresponds to the working ability of an inexperienced person or a person close to it. Index value Lv. 4 corresponds to the working ability of a skilled worker. Then, the index value Lv. 1-Lv. 3 is Lv. The closer it is to 4, the higher the working ability.

In addition, standard work time is set for each work type. The standard working time is the index value Lv. 3 to Lv. The average unit work time by 4 workers is used. For example, if the unit work time is equal to or less than the standard work time, the index value Lv indicating the work ability of the worker is Lv. Let it be 4. Further, the index value Lv. 1-Lv. Also for No. 3, the boundary time is set based on the standard working time. The standard working time is also determined based on the working time measured by the working time measuring unit 17.

The average suspension time is a value obtained by dividing the total time interrupted during work in the past by the number of work. The average interruption time is not an index that directly indicates the work ability of the workers AC, but is used as one of the indexes of the work status of the workers AC.

The next work candidate extraction unit 13 acquires the current state of the plurality of processing machines MC1-MC3 acquired by the operation status acquisition device 21 and the process plan stored in the process plan storage unit 11. Then, the next work candidate extraction unit 13 extracts the next work candidate to be performed by the workers AC based on the current state and the process plan of the processing machines MC1-MC3. The next work candidate is a work that currently requires work by workers AC as a whole of the equipment.

The next work determination unit 14 acquires the next work candidate extracted by the next work candidate extraction unit 13, and also acquires the work capacity of the workers AC corresponding to the next work candidate from the ability database 12. Then, the next work determination unit 14 determines the next work for the worker AC based on the next work candidate and the work ability of the worker AC corresponding to the next work candidate. For example, the next work determination unit 14 determines a worker who should perform the next work candidate in consideration of the progress of the process, the work ability of the worker, the work status of another worker, and the like.

The display instruction unit 15 transmits an instruction of the work determined by the next work determination unit 14 to the mobile device 23 carried by the worker AC. The display instruction unit 15 causes the display device 23a of the mobile device 23 to display the content of the work instruction.

The management device 10 further includes a composite information acquisition unit 16 and a work time measurement unit 17. The composite information acquisition unit 16 obtains work start information, work end information, work interruption information, work restart information, and work start re-notification information input by the worker AC by the mobile device 23. get. That is, the composite information acquisition unit 16 acquires the input information when the worker AC inputs the input device 23b of the portable device 23.

Further, the composite information acquisition unit 16 acquires the operation status of the processing machines MC1-MC3 acquired by the operation status acquisition device 21. That is, the composite information acquisition unit 16 acquires the status such as the stopped state, the automatic operation state, the operation preparation state, and the abnormal stop state for each of the processing machines MC1-MC3. In particular, the composite information acquisition unit 16 acquires automatic operation start information as an operating status.

The working time measuring unit 17 measures the working time by the worker AC based on the detection information by the area sensor 22 and the information acquired by the composite information acquisition unit 16. Further, the work time measuring unit 17 measures the work time and also measures the interruption time when the work is interrupted between the start of the work and the end of the work. Then, the work time and the interruption time related to one work measured by the work time measurement unit 17 are stored in the capacity database 12.

Further, the working time measured by the working time measuring unit 17 is used for determining the standard working time used as a reference for creating a process plan and as a reference for an index value indicating the working ability. For example, the standard working time is determined in consideration of the working time by a plurality of workers AC having a predetermined working capacity.

Here, the operation status acquisition device 21, the area sensor 22, the portable device 23, the composite information acquisition unit 16, and the work time measurement unit 17 constituting the work instruction system 1 configure the work time measurement system.

(1-2. Processing by the display instruction unit 15 and display contents of the display device 23a)
Next, the processing by the display instruction unit 15 and the display contents of the display device 23a will be described with reference to FIGS. 5 to 10. Here, the mobile device 23 of the worker A will be described as an example. As shown in FIG. 6, the display instruction unit 15 causes the display device 23a of the mobile device 23 to display the contents of the initial screen (S1). On the initial screen, the message "There is no work instruction" is displayed in the message area 31. Subsequently, the display instruction unit 15 determines whether or not there is a work instruction for the worker AC determined by the next work determination unit 14 (S2). If there is no work instruction (S2: N), the display instruction unit 15 continues to display the initial screen.

On the other hand, if there is a work instruction (S2: Y), the display instruction unit 15 causes the display device 23a of the mobile device 23 to display the contents of the next work instruction screen (S3). On the next work instruction screen, the part "a" to be produced and the processing machine "MC2" to be used are displayed in the message area 31, and the message "Go to work" is displayed. That is, the next work instruction received by the worker A is to move to the place of the target processing machine MC2 and start the preparatory work related to the part a. Further, on the next work instruction screen, a "re-notification" button 32 and a "work start" button 33 are displayed.

When the worker A immediately starts the work, the worker A inputs the "work start" button 33. However, if the worker A cannot immediately start the work because he / she is performing another work, for example, he / she inputs the “re-notification” button 32.

Therefore, the display instruction unit 15 determines on the next work instruction screen whether the worker A has made an input by pressing the "re-notification" button 32 or by pressing the "work start" button 33 (S4). When the input is performed by the "re-notification" button 32, the display instruction unit 15 activates the notification timer (S5). Subsequently, as shown in FIG. 8, the display instruction unit 15 causes the display device 23a of the mobile device 23 to display the content of the notification waiting screen (S6). On the notification waiting screen, the part "a" to be produced and the processing machine "MC2" to be used are displayed in the message area 31, and the message "Waiting for re-notification" is displayed. In this state, the worker A cannot input anything to the mobile device 23 and only waits for the re-notification.

Then, until a predetermined time elapses after the re-notification timer is activated (S7: N), the display instruction unit 15 continues to display the re-notification waiting screen on the display device 23a. On the other hand, when a predetermined time has elapsed since the re-notification timer was activated (S7: Y), the display instruction unit 15 causes the display device 23a to display the contents of the next work instruction screen shown in FIG. 7 again (S3). ). That is, as shown in FIG. 7, the worker A can input either the "re-notification" button 32 or the "work start" button 33.

Next, when the worker A inputs the "work start" button 33 while the next work instruction screen shown in FIG. 7 is displayed on the display device 23a (S4), the display instruction unit 15 displays the display instruction unit 15 in FIG. As shown, the display device 23a is made to display the contents of the working screen (S8). On the working screen, the part "a" to be produced and the processing machine "MC2" to be used are displayed in the message area 31, and the message "Working" is displayed. Further, the "interrupt" button 34 and the "end of work" button 35 are displayed on the working screen.

When the work currently being performed is completed, the worker A inputs the "work end" button 35. In some cases, Worker A may want to interrupt the work he is currently doing and do something else. For example, when the worker A wants to take a break or needs maintenance work. Since such time should not be included in the working time, the worker A inputs the "suspend" button 34.

Therefore, the display instruction unit 15 determines on the working screen whether the worker A has made an input by pressing the "interrupt" button 34 or by pressing the "work end" button 35 (S9). When the input by the "interruption" button 34 is performed, the display instruction unit 15 causes the display device 23a to display the contents of the interrupted screen as shown in FIG. 10 (S10). On the suspended screen, the part "a" to be produced and the processing machine "MC2" to be used are displayed in the message area 31, and the message "suspended" is displayed. Further, a "restart" button 36 is displayed on the suspended screen. When the worker A ends the suspended state and restarts the work, the worker A inputs the "restart" button 36.

Subsequently, the display instruction unit 15 determines whether or not the worker A has made an input by pressing the "restart" button 36 on the interrupted screen (S11). If there is no input by the "restart" button 36 (S11: N), the display instruction unit 15 continues to display the interrupted screen. On the other hand, if there is an input by the "restart" button 36 (S11: Y), the display instruction unit 15 causes the display device 23a to display the contents of the working screen shown in FIG. 9 again (S8). That is, as shown in FIG. 9, the worker A can input either the "interrupt" button 34 or the "work end" button 35.

Next, when the worker A inputs the "work end" button 35 while the working screen shown in FIG. 9 is displayed on the display device 23a (S9), the display instruction unit 15 sends the display device 23a to the display device 23a. The contents of the initial screen shown in FIG. 1 are displayed (S1). That is, the worker A waits for the instruction of the next work.

(1-3. Processing by the work time measurement unit 17)
Next, the processing by the working time measuring unit 17 will be described with reference to FIGS. 11-14. First, it is assumed that the detection information of the area sensor 22, the input information of the input device 23b of the portable device 23, and the operating status of the processing machine MC2 are changed as shown in FIG.

As shown in FIG. 11, as an initial state, the area sensor 22 is in the non-detection state, the input device 23b of the portable device 23 is in the initial state (initial screen shown in FIG. 6), and the processing machine MC2 is preparing for operation. .. At time t0, the next work instruction is issued, and the next work instruction screen shown in FIG. 7 is displayed on the display device 23a. Subsequently, at time t1, the worker A inputs the "re-notification" button 32, and the display device 23a displays the re-notification waiting screen shown in FIG. At time t2, a predetermined time has elapsed since the re-notification timer was activated, and the display device 23a displays the next work instruction screen shown in FIG. 7 again.

Subsequently, at time t3, the worker A inputs the "work start" button 33, and the display device 23a displays the working screen shown in FIG. 9. Subsequently, at time t4, the area sensor 22 detects that the portable device 23 carried by the worker A has entered the work area 22a of the processing machine MC2. Subsequently, at time t5, the worker A once left the work area 22a, but before the time T1 passed, the worker A re-entered the work area 22a at the time t6.

Subsequently, at time t7, the worker A input the "suspend" button 34, and at the time t8, the worker A inputs the "restart" button 36. When the worker A starts the automatic operation of the processing machine MC2 at the time t9, the operating state of the processing machine MC2 changes from the preparation for operation to the automatic operation state. Subsequently, at time t10, the worker A left the work area 22a, and at the time t11, the worker A input the "work end" button 35.

The work start time determination process by the work time measuring unit 17 is as shown in FIG. That is, the working time measuring unit 17 determines whether or not the mobile device 23 has acquired the approach to the working area 22a (S21). The work time measuring unit 17 repeats the acquisition process until the entry into the work area 22a is acquired (S21: N).

When the work time measuring unit 17 acquires the approach into the work area 22a (S21: Y), the mobile device 23 leaves the work area 22a from the time of entry into the work area 22a to before the time T1. Is determined (S22). If the exit to the outside of the work area 22a has been obtained before the time T1 (S22: Y), the entry into the work area 22a this time is not set as the start time of the work, but the next work area. The process of acquiring the approach to the inside of 22a is repeated (S21). On the other hand, if the exit from the work area 22a has not been acquired before the time T1 (S22: N), the entry time into the work area 22a this time is set as the work start time (S23). As shown in FIG. 11, the time t4 is the work start time. On the other hand, the time t6 is not the start time of the work. As a result, the start time of the work can be set to a more appropriate time.

Next, the work end time determination process by the work time measuring unit 17 is as shown in FIG. That is, the working time measuring unit 17 determines whether or not the automatic operation start information has been acquired (S31). When the automatic operation start information is acquired (S31: Y), the work time measuring unit 17 sets the acquisition time of the automatic operation start information as the work end time (S32).

When the automatic operation start information has not been acquired (S31: N), the working time measuring unit 17 determines whether or not the mobile device 23 has acquired the exit from the working area 22a (S33). If the exit to the outside of the work area 22a has not been acquired (S33: N), it is determined whether or not the automatic operation start information has been acquired again (S31).

On the other hand, when the exit of the mobile device 23 to the outside of the work area 22a is acquired (S33: Y), the inside of the work area 22a of the mobile device 23 is reached from the time of exit to the outside of the work area 22a to before the lapse of time T1. It is determined whether or not the entry to the is acquired (S34). If the entry into the work area 22a is acquired before the lapse of time T1 (S34: Y), the exit to the outside of the work area 22a this time is not set as the end time of the work, and the automatic operation start information is again. Is determined (S31). If the entry into the work area 22a is not acquired before the time T1 elapses (S34: N), the exit time to the outside of the work area 22a this time is set as the work end time (S35).

That is, when the acquisition time of the automatic operation start information is before the exit time to the outside of the work area 22a, the acquisition time of the automatic operation start information is prioritized and the work end time is determined. If the automatic operation is started, even if the worker A is in the work area 22a, it can be considered that the work has been completed. In FIG. 11, since the acquisition time t9 of the automatic operation start information is earlier than the exit time t10, the time t9 is set as the work end time. This makes it possible to measure the working time more appropriately. The input of the "work end" button 35 by the worker A is irrelevant to the determination of the work end time.

The interruption time calculation process by the working time measuring unit 17 is as shown in FIG. That is, the work time measuring unit 17 continues the determination until the interruption information is acquired (S41: N). When the interruption information is acquired (S41: Y), the work time measuring unit 17 starts counting the interruption time (S42). Subsequently, the work time measuring unit 17 determines whether or not the restart information has been acquired (S43), and if the restart information is acquired (S43: Y), the count of the interruption time is terminated and the interruption information is recorded. The period from the acquisition time to the acquisition time of the restart information is calculated as the interruption time (S44). Here, if the time from the acquisition time of the middle information to the acquisition time of the restart information is extremely short (for example, 1 sec), it is determined that the input is erroneous or the operation is erroneous, and the time is not calculated as the intermediate time. May be good.

When the restart information is not acquired (S43: N) after the interruption time count is started, and the work time measurement unit 17 acquires the exit from the work area 22a of the mobile device 23 or the automatic operation start information. (S45) ends counting the interruption time assuming that there is no interruption (S46). Further, if neither the exit to the work area 22a nor the automatic operation start information is acquired, the work time measuring unit 17 again determines whether or not the restart information has been acquired (S43).

In FIG. 11, the “suspend” button 34 is input at the time t7, and the “resume” button 36 is input at the time t8. Therefore, the time from the acquisition time t7 of the interruption information to the acquisition time t8 of the restart information is the interruption time.

Then, as described above, the work time measuring unit 17 calculates the work time based on the work start time t4, the work end time t9, and the interruption time (t7-t8). Specifically, the work time measuring unit 17 obtains the work time by removing the interruption time (t7-t8) from the time from the work start time t4 to the work end time t9. Therefore, a more appropriate working time can be obtained.

Then, the working time thus obtained is stored in the ability database 12. Further, the working time measuring unit 17 calculates the interruption time. The calculated interruption time is also stored in the capacity database 12.

Further, when the work time measuring unit 17 detects that the worker A has left the work area 22a by the area sensor 22 without acquiring the restart information after acquiring the interruption information, the work is interrupted. Measure the working time as if there is no. This happens when the worker A forgets to input the "restart" button 36. In this case, it is not possible to know when the work was resumed. Therefore, when the work is completed without being able to acquire the restart information, it is assumed that there is no interruption to prevent the work time from being counted shortly.

(2. Second embodiment)
The processing by the working time measuring unit 17 of the second embodiment will be described with reference to FIGS. 15 to 17. First, it is assumed that the detection information of the area sensor 22, the input information of the input device 23b of the portable device 23, and the operating status of the processing machine MC2 are changed as shown in FIG.

As shown in FIG. 15, as an initial state, the area sensor 22 is in the non-detection state, the input device 23b of the portable device 23 is in the initial state (initial screen shown in FIG. 6), and the processing machine MC2 is preparing for operation. .. At time t20, the next work instruction is issued, and the next work instruction screen shown in FIG. 7 is displayed on the display device 23a. Subsequently, at time t21, the worker A inputs the "re-notification" button 32, and the display device 23a displays the re-notification waiting screen shown in FIG. At time t22, a predetermined time has elapsed since the re-notification timer was activated, and the display device 23a displays the next work instruction screen shown in FIG. 7 again.

Subsequently, at time t23, the area sensor 22 detects that the portable device 23 carried by the worker A has entered the work area 22a of the processing machine MC2. Immediately after that, at time t24, the worker A inputs the "work start" button 33, and the display device 23a displays the working screen shown in FIG. Subsequently, the worker A once left the work area 22a at the time t25, but before the time T1 passed, the worker A re-entered the work area 22a at the time t26.

Subsequently, at time t27, the worker A input the "suspend" button 34, and at the time t28, the worker A inputs the "resume" button 36. Subsequently, at time t29, the worker A input the "work end" button 35. Immediately after that, at time t30, the worker A starts the automatic operation of the processing machine MC2, so that the operating state of the processing machine MC2 changes from the preparation for operation to the automatic operation state. Subsequently, at time t31, the worker A left the work area 22a.

The work start time determination process by the work time measuring unit 17 is as shown in FIG. That is, the working time measuring unit 17 determines whether or not the mobile device 23 has acquired the approach to the working area 22a (S51). The work time measuring unit 17 repeats the acquisition process until the entry into the work area 22a is acquired (S51: N).

When the work time measuring unit 17 acquires the approach into the work area 22a (S51: Y), the mobile device 23 exits the work area 22a from the time of entry into the work area 22a to before the time T1. Is determined (S52). If the exit to the outside of the work area 22a has been obtained before the time T1 (S52: Y), the entry into the work area 22a this time is not set as the start time of the work, but the next work area. The process of acquiring the approach to the inside of 22a is repeated (S51).

On the other hand, if the exit to the outside of the work area 22a has not been acquired by the time T1 (S52: N), the work time measurement unit 17 then elapses the time T2 from the entry time into the work area 22a. Before, it is determined whether or not the work start information has been acquired by the input of the worker A (S53). This time T2 is set to a very short time.

If the work start information has not been acquired before the time T2 elapses (S53: N), the entry time into the work area 22a this time is determined as the work start time (S54). When the work start information is acquired before the time T2 elapses (S53: Y), that is, the work start information acquisition time is after the entry time, and the work start information acquisition time and entry. This corresponds to the case where the difference from the time is within the time T2. In this case, the acquisition time of the work start information input by the worker A is determined as the work start time (S55).

As shown in FIG. 15, the difference between the time t23 and the time t24 is within the time T2. Therefore, the work start time t24, which is the acquisition time of the work start information input by the worker A, is the work start time. The entry time into the work area 22a is basically the time, but the worker A may input the "work start" button 33 immediately after the entry time. In such a case, the time when the "work start" button 33 is input is more appropriate as the work start time than the approach time. Therefore, by doing the above, the start time of the work can be set to a more appropriate time.

Next, the work end time determination process by the work time measuring unit 17 is as shown in FIG. That is, the working time measuring unit 17 determines whether or not the automatic operation start information has been acquired (S61). When the automatic operation start information is acquired (S61: Y), the work time measuring unit 17 then finishes the work by inputting the worker A by the time T3 before the acquisition time of the automatic operation start information. It is determined whether or not the information has been acquired (S62). This time T3 is set to a very short time.

If the work end information has not been acquired before the time T3 (S62: N), the acquisition time of the automatic operation start information is determined as the work end time (S63). When the work end information is acquired before the time T3 (S62: Y), that is, the work end information acquisition time is before the automatic operation start time, and the work end information acquisition time. This corresponds to the case where the difference between the automatic operation start time and the automatic operation start time is within the time T3. In this case, the acquisition time of the work end information input by the worker A is determined as the work start time (S64).

When the automatic operation start information has not been acquired (S61: N), the working time measuring unit 17 determines whether or not the mobile device 23 has acquired the exit from the working area 22a (S65). If the exit to the outside of the work area 22a has not been acquired (S65: N), it is determined whether or not the automatic operation start information has been acquired again (S61).

On the other hand, when the exit of the mobile device 23 to the outside of the work area 22a is acquired (S33: Y), the inside of the work area 22a of the portable device 23 is reached from the time of exit to the outside of the work area 22a to before the time T1 elapses. It is determined whether or not the entry to the is acquired (S66). If the entry into the work area 22a is acquired before the lapse of time T1 (S66: Y), the exit to the outside of the work area 22a this time is not set as the end time of the work, and the automatic operation start information is again. Is determined (S61).

If the entry into the work area 22a is not acquired before the time T1 elapses (S66: N), the work time measurement unit 17 then receives the time T3 before the exit time from the work area 22a. It is determined whether or not the work end information has been acquired by the input of the worker A (S67). This time T3 is set to a very short time.

If the work end information has not been acquired before the time T3 (S67: N), the exit time to the outside of the work area 22a is determined as the work end time (S68). When the work end information is acquired before the time T3 (S67: Y), that is, the work end information acquisition time is before the exit time, and the work end information acquisition time and exit time. This corresponds to the case where the difference from the time is within the time T3. In this case, the acquisition time of the work end information input by the worker A is determined as the work start time (S69).

In FIG. 15, the acquisition time t29 of the work end information input by the worker A is earlier than the earlier of the automatic operation start information acquisition time t30 and the exit time t31. Further, the difference between the time t29 and the earlier times of the times t30 and t31 is within the time T3. Therefore, the acquisition time t29 of the work end information input by the worker A is the work end time. Basically, the automatic operation start time or the exit time outside the work area 22a is used, but the worker A may input the "work end" button 35 immediately before these times. In such a case, the time when the "work end" button 35 is input is more appropriate as the work end time than the automatic operation start time and exit time. Therefore, by doing the above, the end time of the work can be set to a more appropriate time.

Here, when the processing machines MC1-MC3 are general-purpose machines, there is no automatic operation state. In this case, when the difference between the exit time and the acquisition time of the work end information input by the worker A is within the time T3, the work end information acquisition time is determined as the work end time.

Then, as described above, the work time measuring unit 17 calculates the work time based on the work start time t24, the work end time t29, and the interruption time (t27-t28). Specifically, the work time measuring unit 17 obtains the work time by removing the interruption time (t27-t28) from the time from the work start time t24 to the work end time t29. Therefore, a more appropriate working time can be obtained.

1: Work instruction system, 2: Work time measurement system, 10: Management device, 11: Process plan storage unit, 12: Capacity database, 13: Next work candidate extraction unit, 14: Next work decision unit, 15: Display instruction unit , 16: Composite information acquisition unit, 17: Work time measurement unit, 21: Operation status acquisition device, 22: Area sensor, 22a: Work area, 23: Portable device, A, B, C: Worker, MC1, MC2, MC3: Processing machine

Claims (9)

An area sensor that detects that the worker is located in the work area for the worker to perform work related to the processing machine, and
At least one of the work start information, the work end information, the work interruption information, and the work restart information input by the worker, or the operating status of the processing machine is acquired. Complex information acquisition department and
A work time measuring unit that measures the work time by the worker based on the detection information by the area sensor and the information acquired by the composite information acquisition unit.
Equipped with
The compound information acquisition unit acquires automatic operation start information as an operating status of the processing machine, and obtains information.
When the acquisition time of the automatic operation start information is before the exit time of the worker to the outside of the work area, the work time measuring unit ends the work based on the acquisition time of the automatic operation start information. time determine, work time measurement system. The composite information acquisition unit acquires the interruption information of the work and the restart information of the work input by the worker.
The working time measuring unit is
The start time of the work is determined based on the time when the worker enters the work area.
The end time of the work is determined based on the time when the worker leaves the work area.
The work time measurement according to claim 1, wherein the work time is measured based on the time from the start time to the end time, excluding the time from the acquisition time of the interruption information to the acquisition time of the restart information. system. When the work time measuring unit detects that the worker has left the work area by the area sensor without acquiring the restart information after acquiring the interruption information, the work time measuring unit performs the work. The work time measurement system according to claim 2, wherein the work time is measured assuming that there is no interruption. The compound information acquisition unit acquires the end information of the work input by the worker, and obtains the end information.
The acquisition time of the end information is before the exit time and the acquisition time of the automatic operation start information, and the earlier of the acquisition time of the end information and the exit time and the acquisition time of the automatic operation start information. The work time measuring system according to any one of claims 1-3, wherein the end time is determined based on the acquisition time of the end information when the difference is within a predetermined time. The compound information acquisition unit acquires the start information of the work input by the worker, and obtains the start information.
In the work time measuring unit, the acquisition time of the start information is after the entry time of the worker into the work area, and the difference between the acquisition time of the start information and the entry time is within a predetermined time. The work time measuring system according to any one of claims 1 to 4 , wherein the start time of the work is determined based on the acquisition time of the start information. The working time measuring system further comprises a portable device portable by the worker.
In the portable device, the worker can input at least one of the start information of the work, the end information of the work, the interruption information of the work, and the restart information of the work.
The area sensor detects whether or not the worker is located in the work area by detecting the position of the portable device.
The work time measurement system according to any one of claims 1 to 5 , wherein the composite information acquisition unit acquires information input by the mobile device. An area sensor that detects that the worker is located in the work area for the worker to perform work related to the processing machine, and
At least one of the work start information, the work end information, the work interruption information, and the work restart information input by the worker, or the operating status of the processing machine is acquired. Complex information acquisition department and
A work time measuring unit that measures the work time by the worker based on the detection information by the area sensor and the information acquired by the composite information acquisition unit.
Equipped with
The compound information acquisition unit acquires the end information of the work input by the worker, and obtains the end information.
In the work time measuring unit, the acquisition time of the end information is before the exit time of the worker to the outside of the work area, and the difference between the acquisition time of the end information and the exit time is within a predetermined time. In this case, a work time measuring system that determines the end time of the work based on the acquisition time of the end information. An area sensor that detects that the worker is located in the work area for the worker to perform work related to the processing machine, and
At least one of the work start information, the work end information, the work interruption information, and the work restart information input by the worker, or the operating status of the processing machine is acquired. Complex information acquisition department and
A work time measuring unit that measures the work time by the worker based on the detection information by the area sensor and the information acquired by the composite information acquisition unit.
Equipped with
The compound information acquisition unit acquires the start information of the work input by the worker, and obtains the start information.
In the work time measuring unit, the acquisition time of the start information is after the entry time of the worker into the work area, and the difference between the acquisition time of the start information and the entry time is within a predetermined time. In this case, a work time measuring system that determines the start time of the work based on the acquisition time of the start information. It is a work instruction system that targets equipment equipped with a plurality of processing machines and gives work instructions to each of a plurality of workers to the plurality of processing machines.
An ability database for storing the work ability of the worker determined based on the work time measured by the work time measurement system according to any one of claims 1-8.
A process plan storage unit that stores a process plan in which an execution order for processing by the plurality of processing machines and work by a worker on the plurality of processing machines is defined, and
The next work candidate extraction unit that extracts the next work candidate performed by the worker based on the current state of the plurality of processing machines and the process plan, and the next work candidate extraction unit.
A next work decision unit that determines the next work for a predetermined worker from the next work candidates based on the work ability stored in the ability database.
A work instruction system.

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