CN111819506B

CN111819506B - Information processing apparatus, control method, and program

Info

Publication number: CN111819506B
Application number: CN201880090805.6A
Authority: CN
Inventors: 北野芳直; 园田忠则
Original assignee: NEC Corp
Current assignee: NEC Corp
Priority date: 2018-03-08
Filing date: 2018-09-07
Publication date: 2023-11-03
Anticipated expiration: 2038-09-07
Also published as: CN111819506A; WO2019171631A1; JP6962447B2; JPWO2019171631A1

Abstract

An information processing apparatus (2000) is provided for generating and outputting a display screen including a first graphic (12) and a second graphic (14). The first graph (12) represents, in a recognizable time series, a period of time in which the production amount of a satisfactory product satisfies a reference and a period of time in which the production amount of the satisfactory product does not satisfy the reference, respectively. The second graph (14) represents the operating state in the time series.

Description

Information processing apparatus, control method, and program

Technical Field

The present invention relates to management of work in a device.

Background

Systems have been developed to visualize work performance in factories and the like. For example, patent document 1 discloses a technique for performing yield management by displaying a change in production performance and a production plan in a production line, respectively, using a line drawing.

Literature of related arts

Patent literature

[ patent document 1] Japanese laid-open patent application A-H09-131646

Disclosure of Invention

Technical problem

It is difficult to identify the cause of insufficient production output by merely observing the pattern representing the output. The present invention has been made in view of the above problems, and an object of the present invention is to provide a technique that easily identifies the cause of insufficient yield.

Solution to the problem

An information processing apparatus according to the present invention includes: 1) A first generation unit that generates a first pattern capable of representing, in time series, a period in which the production amount of the acceptable product satisfies a reference and a period in which the production amount of the acceptable product does not satisfy the reference, differently from each other; 2) A second generation unit that generates a second graph representing a period of time of a work state of a worker in a time series; and 3) an output unit outputting a display screen including the first graphic and the second graphic.

The control method of the present invention is a control method executed by a computer. The control method comprises the following steps: 1) A first generation step of generating a first pattern capable of representing, in time series, a period in which the production amount of the acceptable product satisfies the criterion and a period in which the production amount of the acceptable product does not satisfy the criterion, differently from each other; 2) A second generation step of generating a second graph representing a period of time of the work state of the worker in a time series; and 3) outputting a display screen including the first graphic and the second graphic.

According to the present invention, there is provided a program that causes a computer to execute each step of the control method of the present invention.

Advantageous effects of the invention

According to the present invention, a technique for easily identifying the cause of insufficient yield is provided.

Drawings

The above objects, other objects, features and advantages will become more apparent from the following preferred exemplary embodiments and the following drawings.

Fig. 1 is a diagram conceptually showing a process performed by an information processing apparatus according to the present exemplary embodiment.

Fig. 2 is a diagram showing a functional configuration of an information processing apparatus according to the first exemplary embodiment.

Fig. 3 is a diagram showing a computer for realizing the information processing apparatus.

Fig. 4 is a flowchart showing a flow of processing performed by the information processing apparatus according to the first exemplary embodiment.

Fig. 5 is a diagram showing yield information in a table form.

Fig. 6 is a diagram showing a first graph representing a variation in yield.

Fig. 7 is a diagram showing the work information in a table form.

Fig. 8 is a diagram showing a modification of the method of outputting the first display screen.

Fig. 9 is a diagram showing an example of highlighting a second graphic according to selection of data in the first graphic.

Fig. 10 is a diagram showing an example of displaying a captured image according to selection of an operation state in the second graphic.

Fig. 11 is a diagram showing a display screen of a use case.

Detailed Description

Hereinafter, example embodiments of the invention will be described with reference to the accompanying drawings. Moreover, in all the drawings, the same components are denoted by the same reference numerals, and the description thereof will not be repeated. In addition, unless specifically stated otherwise, in each block diagram, each block represents a constitution in a functional unit, not a constitution in a hardware unit.

First example embodiment

< overview >

Fig. 1 is a diagram conceptually showing a process performed by the information processing apparatus of the present exemplary embodiment (the information processing apparatus 2000 shown in fig. 2). The information processing apparatus 2000 generates the display screen 10 including the first graphic 12. The first graph 12 shows time-series data representing a period of time in which the yield in the apparatus can be distinguished from a period of time in which the yield in the apparatus does not meet the reference. The apparatus is, for example, a production line or a device operating in a factory or the like.

Yield represents the number of acceptable products produced by the apparatus. A good product is a product that meets a predetermined quality criterion among products produced by the apparatus. For example, in the case where a product produced in a certain apparatus is used for the next apparatus and the product does not meet a quality reference, the product cannot be used in the next apparatus in many cases. In this case, the product satisfying the quality criterion is a non-defective product. On the other hand, a product that does not satisfy the reference quality (i.e., a product that cannot be used in the next apparatus) is a product (defective product) that is a non-conforming product.

The first graph 12 of fig. 1 is a graph relating to yield in device a. The period of time during which the yield meets the reference is represented by a white rectangle. On the other hand, a period in which the yield does not satisfy the reference is represented by a hatched rectangle. Hereinafter, the fact that the yield does not satisfy the reference is also referred to as "yield insufficiency".

There is a possibility that the yield of the apparatus is insufficient due to the work of a person who works in the apparatus (hereinafter, referred to as a worker). Further, various works may be regarded as works of workers (which may be a cause of insufficient production). For example, because a worker performs an erroneous operation on the apparatus, the apparatus may produce defective products, resulting in insufficient yield. In addition to this, for example, the following possibilities exist: even if the apparatus is in a state where the product can be produced and the apparatus is idle for the period of time, the worker cannot operate the apparatus, so that the yield is insufficient. Accordingly, it is difficult to identify the cause of the insufficient yield only by the data indicating whether the yield satisfies the criterion (i.e., the first pattern 12). For example, although the first graph 12 of fig. 1 shows that the insufficient yield occurs for a period of time, the cause of the insufficient yield cannot be recognized from the first graph 12 alone.

Here, the information processing apparatus 2000 includes the second graphic 14 in addition to the first graphic 12 in the display screen 10. The second graphic 14 represents the work state of the worker in time series. The operation status is information indicating 1) the target device, 2) the type of operation, and 3) the progress. Thus, for example, the operating status is represented by a combination of the identifier of the device, the type of operation, and the progress status.

For example, in the operation state shown in fig. 1, the target device is device a, and the type of operation is a failure recovery operation. The failure recovery operation is an operation for recovering a failed device to a normal state. Each progress status includes notification confirmation, measure start, and measure end.

The progress state of notification confirmation is the following state: when a worker operates the device according to an instruction from the computer, an input indicating confirmation of a work instruction from the computer is made. For example, the output of a notification and the input indicating confirmation of the notification are performed on a touch panel or the like provided in a device operated by a worker. The "measure" in the progress state of the start of the measure and the end of the measure is a main action of the type of work. For example, in the case where the target device is the device a and the type of operation is the failure recovery operation, the measure is an action for repairing the failure of the device a. Note that details of the operation state will be described later.

The second graphic 14 shows each working state of the worker in that, for example, a change time point, which is a time point of change to the working state (a time point of change to the working state), can be recognized. In fig. 1, each working state of a worker is represented by one point (circle) on the time axis. The time point corresponding to the point representing each operation state represents a change time point of the operation state. Note that, as shown in fig. 1, a white circle and a hatched circle represent the status of notification confirmation and measure, respectively.

Note that, in the case where data of an operation state having a time width (an operation state lasting for a certain time) is shown, the second pattern 14 may be shown in the following aspect: the point in time of the change to the operating state and the point in time of the change from one state to the other state (i.e., the start time point and the end time point of the operating state) can be identified. For example, the operating state having the time width may include a state such as "action being taken". The start time and the end time of the operating state of "taking a measure" respectively indicate the point in time at which the measure starts and the point in time at which the measure ends. For example, in the case where the operating state is represented by a rectangle on the time axis, the time start point may be represented or the time end point may be represented.

In the case of observing the first pattern 12 and the second pattern 14, information about the operating state that may have a cause of insufficient yield can be obtained. For example, in a period in which the yield meets the criterion in the second graph 14 of fig. 1, notification confirmation is performed at the start time point of each period, and the measure starts. On the other hand, in the period in which the shortage of yield occurs, the timing of notifying the confirmation and the timing of starting the measure are later than the starting time point of the period in which the shortage of yield occurs. Thus, the delay in starting the operation is considered to be a cause of insufficient yield.

< operations and Effect >

According to the information processing apparatus 2000 of the present exemplary embodiment as described above, the display screen 10 is output, the display screen 10 including: a first graph 23 showing, in time series, a period of time in which the yield of the apparatus satisfies the reference and a period of time in which the yield of the apparatus does not satisfy the reference; and a second graphic 14 for representing a time period of the work state of the worker in a time series. As a result, a user of the information processing apparatus 2000 (e.g., a worker or manager who manages the operation of a factory or the like) can easily compare a period of time in which the yield does not satisfy the reference with the work state of the worker in the period of time. Therefore, the user can easily recognize the cause of the insufficient yield. For example, a cause such as "delay the start of the measure" may be identified. In addition, for example, in a period in which the yield does not satisfy the reference, the type of work, the time at which the work starts, and the time required to perform the work can be easily identified.

Note that, as described above, the above description with reference to fig. 1 is an example for easier understanding of the information processing apparatus 2000, and does not limit the functions of the information processing apparatus 2000.

Hereinafter, the information processing apparatus 2000 of the present exemplary embodiment will be described in further detail.

< example of functional configuration of information processing apparatus 2000 >

Fig. 2 is a diagram showing a functional configuration of the information processing apparatus 2000 according to the first exemplary embodiment. The information processing apparatus 2000 includes a first generation unit 2020, a second generation unit 2040, and an output unit 2060. The first generation unit 2020 generates the first graphic 12. As described above, the first patterns 12 represent the time periods in which the production amount of the acceptable product satisfies the reference and the time periods in which the production amount of the acceptable product does not satisfy the reference, distinguishably from each other in time series. The second generation unit 2040 generates a second graphic 14. As described above, the second graphic 14 represents the work state of the worker in time series. The output unit 2060 outputs the display screen 10 including the first graphic 12 and the second graphic 14.

< hardware Structure of information processing apparatus 2000 >

Each of the functional constituent units of the information processing apparatus 2000 may be realized by hardware (e.g., a hard-wired electronic circuit or the like) that realizes each of the functional constituent units, or may be realized by a combination of hardware and software (e.g., a combination of an electronic circuit and a program that controls the electronic circuit). Hereinafter, a case where each of the functional constituent units of the information processing apparatus 2000 is realized by a combination of hardware and software will be further described.

Fig. 3 is a diagram showing a computer 1000 for implementing the information processing apparatus 2000. The computer 1000 is any computer. For example, the computer 1000 is a Personal Computer (PC), a server machine, or the like. The computer 1000 may be a special purpose computer designed to implement the information processing apparatus 2000, or may be a general purpose computer.

The computer 1000 includes a bus 1020, a processor 1040, a memory 1060, a storage device 1080, input and output interfaces 1100, and a network interface 1120. Bus 1020 is a data transmission path through which processor 1040, memory 1060, storage device 1080, input and output interface 1100, and network interface 1120 send and receive data to and from one another. However, the method of connecting the processors 1040 and the like to each other is not limited to bus connection.

Processor 1040 includes various processors such as a Central Processing Unit (CPU), a Graphics Processing Unit (GPU), and a Field Programmable Gate Array (FPGA). The memory 1060 is a main storage configured with a Random Access Memory (RAM) or the like. The storage device 1080 is an auxiliary storage configured with a hard disk, a Solid State Drive (SSD), a memory card, a Read Only Memory (ROM), and the like.

The input and output interface 1100 is an interface for connecting the computer 1000 to input and output devices. For example, an input device such as a keyboard and an output device such as a display device are connected to the input and output interface 1100. The network interface 1120 is an interface for connecting the computer 1000 to a communication network. The communication network is, for example, a Local Area Network (LAN) or a Wide Area Network (WAN). The method of connecting the network interface 1120 to the communication network may be a wireless connection or a wired connection.

The storage device 1080 stores program modules that implement each of the functional constituent units of the information processing apparatus 2000. Processor 1040 achieves the functionality corresponding to each program module by reading each program module into memory 1060 and executing the program module.

< procedure >

Fig. 4 is a flowchart showing the flow of processing performed by the information processing apparatus 2000 according to the first exemplary embodiment. The first generation unit 2020 generates the first graphic 12 (S102). The second generation unit 2040 generates the second graphic 14 (S104). The output unit 2060 outputs the display screen 10 including the first graphic 12 and the second graphic 14 (S106).

< yield benchmark >

It is assumed that a reference for the production decision (i.e., a reference for the production determination of a qualified product) is decided for each apparatus. The information indicating the yield reference of each device is stored in a storage device accessible to the first generating unit 2020, for example.

"yield meets the criterion" means that the yield of the acceptable product is equal to or greater than the amount determined by the criterion. For example, assume that a reference of "five good products are produced in one second" is determined for the apparatus a. In this case, the period in which the number of the qualified products produced in one second in the apparatus a is equal to or greater than 5 is a period in which the yield of the apparatus a satisfies the reference. On the other hand, the period in which the number of the qualified products produced in one second in the apparatus a is less than 5 is a period in which the yield of the apparatus a does not satisfy the reference.

Multiple yield references may be set for a single device. In this case, each period may be divided into a period in which the yield satisfies the most stringent criterion, a period in which the yield satisfies the second stringent criterion, and a period in which the yield does not satisfy any criterion. That is, in the case where N references are decided for a certain device, the first graphic 12 of the device displays n+1 types of time periods so as to be able to distinguish from each other. For example, assume that a first reference of "10 good products are produced in one second" and a second reference of "5 good products are produced in one second" are determined for a. In this case, the first graphic 12 of the device a displays three types of time periods, including: the time period in which the yield of the apparatus a satisfies the first reference, the time period in which the yield of the apparatus a does not satisfy the first reference but satisfies the second reference, and the time period in which the yield of the apparatus a does not satisfy the second reference, so as to be able to distinguish from each other.

< generate first graphic 12: s102 ]

The first generation unit 2020 generates the first graphic 12 (S102). As described above, the first graph 12 shows time-series data representing a period in which the yield in the apparatus satisfies the reference and a period in which the yield in the apparatus does not satisfy the reference, thereby enabling discrimination.

The device as a target of generating the first graphic 12 by the first generating unit 2020 is specified by, for example, a user operation. Note that the prior art may be used as a specific technique for specifying a target of generating a graphic.

However, the method of determining the target of generating the first graphic 12 is not limited to the designation by the user operation. For example, the device that is the target of generating the first graphic 12 may be predetermined by default. In this case, the target device may be replaced by a user operation.

The first generation unit 2020 acquires information regarding the yield of the device that is a target of generating the first graphic 12. Hereinafter, information related to the yield of the apparatus is referred to as yield information. Fig. 5 is a diagram showing yield information in a table form. The table shown in fig. 5 is expressed as table 100.

The table 100 includes three columns with device identifiers 102, yields 104, and time periods 106. Each record of table 100 shows, for a device determined by device identifier 102, a yield for a time period shown in time period 106 as yield 104. The time period 106 is represented, for example, by a combination of a start time and an end time of the time period.

The first generation unit 2020 determines whether the yield per time period satisfies the criterion. Specifically, the first generation unit 2020 determines whether the yield in each period satisfies the reference by comparing the yield of the apparatus in each period with the yield reference of the apparatus using the yield information of the apparatus as a target of generating the first pattern 12.

However, the first generation unit 2020 does not necessarily need to determine whether the yield satisfies the criterion. For example, the yield information may include information indicating whether the yield satisfies a reference. In this case, the first generation unit 2020 may identify whether the yield per time period satisfies the criterion by referring to the yield information.

Here, it is assumed that a plurality of yield references are determined. In this case, an identifier is assigned to each fiducial. Further, the yield information includes an identifier of the strictest reference among the satisfied references.

The length of each time period in the first pattern 12 (e.g., the horizontal width of each rectangle in the first pattern 12 in fig. 1) is determined by, for example, yield information. In this case, the first generation unit 2020 generates one piece of data (for example, a rectangle in the first graphic 12 of fig. 1) to be included in the first graphic 12 for each piece of record included in the yield information.

However, the length of each time period in the first pattern 12 need not be determined by the yield information. For example, the length of each time period is predetermined. Specifically, assume that the length of the period of time is 10 minutes. In this case, in the first graph 12, the time axis is divided in units of 10 minutes (for example, 12:00 to 12:10, 12:10 to 12:20, and the like). The first generation unit 2020 refers to the yield information for each period obtained by division in this way, determines whether the yield in the period satisfies a criterion, and generates the first pattern 12 based on the determination result.

Here, the first generation unit 2020 generates the first graphic 12 within a certain period of time. For example, in FIG. 1, first graphic 12 is generated at 12:00 to 13:00 on 1.2.2017. For example, the specific period is specified by a user operation. In addition to this, for example, the first generation unit 2020 decides a specific period based on the current date and time. For example, the first generation unit 2020 generates the first graphic 12 for a day of the current date. Note that in the case where the first graphic 12 is generated for a certain day, what time to what time of the certain period from the day may be decided in advance or may be specified by the user operation. In addition, the period from the initial period to the final period indicated by the yield information for the day may be set as a specific period.

Any format of graphics that enables data to be represented in time series may be employed as the first graphic 12. For example, as shown in fig. 1, a graph showing a format of display in which time axes are different from each other in a period in which the yield satisfies the reference and in a period in which the yield does not satisfy the reference may be employed. Note that the display need not be rectangular, and may be other figures or points. For example, in the case where a time period is represented using a point, the point indicates a start time point, an end time point, or an intermediate time point of the time period.

The first graphic 12 does not necessarily need to show displays different from each other in the period of time in which the reference is satisfied and the period of time in which the reference is not satisfied. For example, the first pattern 12 is set to a pattern (a line drawing or the like showing a change in yield) in which the vertical axis represents yield and the horizontal axis represents time. In this case, the first graph 12 includes data representing a yield reference. In this way, it is possible to distinguish between a period in which the yield meets the reference and a period in which the yield does not meet the reference.

Fig. 6 is a diagram showing a first graph 12 representing a variation in yield. In fig. 6, the vertical axis represents yield, and the horizontal axis represents time. In addition, the solid line indicates a variation in yield, and the broken line indicates a yield reference. The period in which the yield satisfies the reference is the period in which the solid line is above the broken line. On the other hand, the period in which the yield does not satisfy the reference is the period in which the solid line is below the broken line.

In the case where a pattern representing a variation in yield is set as the first pattern 12, yield information is set as information representing a variation in yield of each device.

Note that, regarding a graph representing a change in yield, a display that can be easily distinguished between a period in which the yield satisfies the reference and a period in which the yield does not satisfy the reference may be added. For example, in fig. 6, a method of using lines of different colors for a solid line in a period in which the yield satisfies the reference and a solid line in a period in which the yield does not satisfy the reference may be considered. In this case, a broken line indicating the yield reference may not be displayed.

< working State >

As described above, the operation state is information indicating the progress of the operation. For example, the operation state is represented by a combination of an identifier of the target device, a type of operation, and a progress state. Note that the work state may include a state in which no work is being performed (i.e., a state at rest).

In addition to the above-described failure recovery operation, various types of operation may be employed. For example, the types of work include setting work, cutting tool replacement work, repair work, and production preparation work. The setting work is a preparation work for replacing the product generated in the apparatus. For example, the work including the die set in the replacing device is prepared. The tool replacement work is work for replacing a tool. The repair work is a work of repairing a defective product in the case where the defective product is produced. Production preparation is, for example, a work required for preparation of production, such as driving of a device.

In addition to the above-described "notification confirmation", "measure start", and "measure end", various progress states may be adopted. For example, progress states such as move, arrive, or material wait may be employed. "move" is a state in which movement to the target device is started. "reach" is the state of reaching the target device. "Material waiting" is the state of the material required to await the action to be delivered. In addition to this, for example, in the fault recovery work, a progress state such as a cause investigation indicating a state in which the cause of the fault is being investigated may be employed.

Furthermore, each progress state may be subdivided. For example, in the case where a measure is divided into a plurality of stages, each stage may be used instead of the "measure". For example, in the case where measures are divided into phase a and phase B, a progress state such as "phase a end" or "phase B start" may be adopted.

< generation of the second pattern 14: s104 ]

The second generation unit 2040 generates a second graphic 14. The second graphic 14 represents the work state of the worker in time series.

For a worker as a target of generating the second figure 14, the second generation unit 2040 generates the second figure 14 representing the work state of the worker in time series. For example, a worker is specified by a user operation. Note that the prior art may be used as a specific technique for specifying a target of generating a graphic.

In addition, for example, a user operation to select the device may be received, and the second graphic 14 may be generated for a worker of the device. It is assumed that the worker of the apparatus is predetermined. For example, information in which the identifier of the apparatus is associated with the identifier of the worker is stored in a storage apparatus accessible from the second generation unit 2040. The second generation unit 2040 determines the worker of the selected device by acquiring the identifier of the worker associated with the identifier of the selected device.

In addition to this, for example, the second generation unit 2040 may automatically determine a worker as a target of generating the second graphic 14. For example, the second generation unit 2040 determines a worker as a device that is a target of generating the first graphic 12, and sets the worker as a target of generating the second graphic 14.

The second generation unit 2040 may also set a worker of a device other than the device that is the target of generating the first graphic 12 as the target of generating the second graphic 14. For example, the second generation unit 2040 sets a worker of a device immediately before the device that is the target of generating the first graphic 12 as the target of generating the second graphic 14. For example, in the case where the progress of work is delayed in the equipment immediately before the equipment a (the equipment for producing the material used by the equipment a), the delay may be a cause of insufficient production of the facility a. Thus, it may be mentioned that information about the work state of the worker responsible for the equipment immediately before the equipment a is useful for identifying the cause of the insufficient yield of the equipment a.

In order to generate the second graphic 14, the second generation unit 2040 acquires the operation information. The work information indicates information of the work state of the worker in each device. Fig. 7 is a diagram showing the operation information in a table form. The table shown in fig. 7 is referred to as a table 200. Table 200 includes worker identifier 202, status 204, and time period 206. Each record of table 200 shows the work status of a worker as determined by worker identifier 202 in state 204.

Status 204 indicates a device identifier 208, a type 210, and a progress status 212. The device identifier 208 represents an identifier of a device that is a work target. Type 210 represents the type of job. Progress status 212 indicates the progress status of the work.

Time period 206 indicates a start time 214 and an end time 216. The start time 214 represents the time to change to the operating state represented by its record. The end time 216 represents the time to change from the operating state represented by its record to another operating state. Note that for a status related to work (such as "notification acknowledgement"), only the discontinuous start time 214 may be shown.

The method of generating the work information is arbitrary. For example, it is assumed that a worker inputs information (a target device, a type of work, a progress state, etc.) related to the progress of work to a predetermined terminal according to the progress of work. Further, the information processing apparatus 2000 or another arbitrary apparatus generates the operation information using the input information. Note that, preferably, the time at which the input from the worker is received is automatically set in the time shown in the work information.

The predetermined terminal is, for example, a mobile terminal carried by a worker, a PC installed near each device, or the like. Here, any method may be employed as a method of input by a worker. For example, it is possible to use: key input using a keyboard, touch operation using a touch panel, or sound input using a microphone.

Here, sound input will be described in more detail. For example, at a time point of a change in the work state (a time point of confirmation of a notification concerning the work, a time point of start of the work, a time point of end of the work, or the like), the worker makes a sound input indicating the change in the state. For example, a sound indicating a progress state such as "notification confirmation", "work start", or "work end" is input. The work information is generated from the sound input. Specifically, first, a progress state corresponding to an input sound is determined. For example, the progress state corresponding to the sound "notification confirmation" is "notification confirmation". In addition, a target device associated with the progress status and the type of work is determined. The type of the target device and the job may be input by any method in advance before the progress state is input. Further, the time point at which the sound input is received is used as the change time included in the work information. Working information is generated using each of the above information.

Any format of graphics that displays a plurality of data in time series distinguishable from each other may be employed as the second graphics 14. For example, the second graphic 14 is a graphic that shows one time axis for each worker and draws a point corresponding to each record of the table 200 on the time axis. In addition, in the case where a certain job has a state of starting and ending, a period from the start to the end of the job may be represented by one shape (for example, a rectangle).

< generation of first display screen: s106 ]

The output unit 2060 generates the display screen 10 including the first graphic 12 and the second graphic 14 (S106). Preferably, the output unit 2060 sets the first pattern 12 and the second pattern 14 such that the time axes of the first pattern 12 and the second pattern 14 are aligned on the display screen 10. Here, "the time axes of the two patterns are aligned" means that, for example, the time points on the same vertical line passing through the time axes of the two patterns are parallel to each other and represent the same time point as each other. However, the time points on the perpendicular line of the time axis passing through the first pattern 12 and the second pattern 14 do not necessarily need to be precisely matched. The time axis may be observed from the eyes of a person such that a certain point in time on the time axis of the first pattern 12 and a point in time on the time axis of the second pattern 14 match in the vertical direction (in the case where the time axis is the horizontal direction) or the horizontal direction (in the case where the time axis is the vertical direction) of the screen.

The display screen 10 generated by the output unit 2060 may be an image representing a screen, or may be data capable of generating an image representing a screen by performing predetermined processing. As an example of the latter, for example, an HTML file is provided. In the case where the display screen 10 is generated as an HTML file, an image representing the display screen 10 is generated by processing the HTML file using an application such as a browser.

< output of display screen 10 >

The output unit 2060 outputs the display screen 10. There are a variety of methods of outputting the display 10. Fig. 8 is a diagram showing a variation of the method of outputting the first display screen.

In the upper case of fig. 8, the output unit 2060 causes the display device 30 connected to the information processing device 2000 to display the display screen 10. In contrast, in the lower case of fig. 8, the output unit 2060 transmits the display screen 10 to the external terminal 40 that is communicatively connected to the information processing apparatus 2000. Further, the external terminal 40 causes the display device 50 connected to the external terminal 40 to display the display screen 10. In the lower case of fig. 8, for example, the information processing apparatus 2000 functions as a server apparatus, and the external terminal 40 functions as a client apparatus.

< other functions >

< highlighting >

Preferably, the information processing apparatus 2000 has a function of more easily recognizing a relationship between a period of insufficient yield and a working state of a worker. For example, the information processing apparatus 2000 receives a user operation specified for a certain period of time in the first graphic 12. For example, in the first graph 12 of fig. 1, each rectangle may be selected by a tap operation, a click operation, or the like. The output unit 2060 performs highlighting in the second graph 14 of data of the job performed in the time period specified in the first graph 12 in accordance with the user operation.

Fig. 9 is a diagram showing an example in which the second graphic 14 is highlighted according to the selection of data in the first graphic 12. In the upper part of fig. 9, the data 60 of the first graphic 12 is selected. Here, in the second graph, the data representing the work included in the period of time represented by the data 60 includes the drawing 70-1 and the drawing 70-2. Therefore, as shown in the lower part of fig. 9, the output unit 2060 performs highlighting by making the drawings 70-1 and 70-2 larger than the other drawings 70. Note that the method of highlighting is not limited to the method of enlarging drawing. Note that in fig. 9, the data selected in the first graphic 12 is also highlighted.

Here, not only the work performed during the period in which the shortage of yield occurs but also the work performed before the period may be the cause of the shortage of yield. Here, in response to a user operation to select a certain period of time in the first graph 12, the output unit 2060 may further highlight the operation state before the selected period of time in the first graph 12. For example, the output unit 2060 performs highlighting of the operation state in which the change time point in the operation state immediately before the selected time period in the first graph 12 is the latest (i.e., the operation state immediately before the selected time period in the first graph 12). In addition to this, for example, the output unit 2060 may highlight the predetermined number of operating states in the order of later change time points in the operating states before the selected time period in the first graph 12, or may highlight each operating state for a predetermined time period from the start time until the selected time period.

In addition to this, for example, the output unit 2060 may automatically determine the operating state to be highlighted in the second graph 14 based on the period of insufficient yield. In this case, the output unit 2060 determines the operating state in which the highlighting is performed by processing the period of insufficient yield in the same manner as the period selected by the above-described user operation. That is, the output unit 2060 highlights the operating state in the period of insufficient yield, or highlights the operating state before the period of insufficient yield.

Display of captured image corresponding to operating state

In the case where any of the operation states shown in the second graph 14 (circles in the second graph 14 in fig. 1 and 9) is selected, the output unit 2060 may output the captured image associated with the operation state. The captured image associated with the working state is an image obtained by capturing a worker in the working state (a point in time at which the working state is changed or a point in time before and after the point in time) using a camera. For example, each worker may be captured by installing a camera in each device or between devices.

Fig. 10 is a diagram showing an example of displaying a captured image according to selection of an operation state in the second graphic 14. In the upper part of fig. 10, the user selects the drawing 70. As a result, in the lower part of fig. 10, a captured image 15 corresponding to the operation state indicated by the drawing 70 is displayed.

For example, an image of a worker is included in each record of the work information, and the image is stored in the storage device. The captured image included in each record of the work information is an image generated by a worker capturing the work state determined in the record using a camera. For example, the image may include a target (product, device, machine, etc.) of a work performed by a worker, or a worker and a target.

The captured image associated with the operation state may be an image generated using a still camera capturing a still image or an image frame constituting a moving image generated using a video camera.

Note that a moving image (a plurality of captured images) may be associated with an operating state. In this case, the output unit 2060 may output a moving image associated with the selected operation state, or may output a moving image frame constituting a moving image (for example, a moving image frame of the front head of a moving image).

Application example

Here, a specific use example of the information processing apparatus 2000 will be described. The use examples shown here are provided to show a situation in which the information processing apparatus 2000 is used, to make the example of the information processing apparatus 2000 easy to understand, and not to limit the situation in which the information processing apparatus 2000 is used.

Fig. 11 is a diagram showing a display screen 10 of a use example. The target selection area 16 is an input area for selecting a device or the like that is a target of generating the first graphic 12. First, the date and time at which the first graphic 12 and the second graphic 14 are generated may be selected in the target date and time column. For example, in fig. 11, the first graphic 12 and the second graphic 14 are generated using the production information and the work information at 2017, 12, 17.

The range of devices that are targets for generating the first graphic 12 can be narrowed in the line selection field. For example, in fig. 11, line a is selected in the line selection field. Thus, the yield of each device included in the production line a is displayed in the first graphic 12.

As a result of selecting the production line a in the production line selection field, the configuration of the production line a is displayed in the production line display field. In the example production line a, three devices M1 to M3 are arranged in sequence. Here, the devices M1 to M3 are sequentially displayed in the line display column.

The line display column further includes a display indicating whether each device included in the line a is operated. The device superimposed with white circles represents a device that is operating normally. On the other hand, a device with a hatched circle superimposed indicates a failed device. In an example, device M2 fails and the other devices operate normally.

In the first graph 12, data of the yield of each device included in the production line a is displayed. In the first pattern 12, two yield references are set. The case where the yield satisfies the strict criterion indicates that the yield is good. The case where the yield satisfies only a loose criterion indicates that the yield is low (no bad). The case where the yield does not satisfy the relaxation reference indicates poor yield.

In the first graph 12, a period of good yield is represented by a white rectangle, a period of low yield is represented by a hatched rectangle, and a period of poor yield is represented by a dotted rectangle. Note that, in practice, it is preferable to represent the period of good yield by a color (such as green) associated with a good state. On the other hand, it is preferable that a color (such as red or yellow) associated with the defective state be used to represent a period of defective yield. For example, good yield, low yield and poor yield are represented by green, yellow and red, respectively.

The first graphic 12 may display only the yields of some, but not all, of the devices included in the selected production line in the production line selection field. For example, the first graphic 12 displays only the yield of the device selected by the user. The device that is the target of generating the first graphic 12 may be specified by an operation of selecting the device in the line display field (for example, an operation of clicking on a picture of the device).

In the use case, worker 1 is responsible for the work on line a. Thus, a change in the working state of the worker 1 is displayed on the second graphic 14.

At the bottom of the second graphic 14, a table showing details of the working state of each worker is displayed. Each record of the table corresponds to each drawing of the second graphic.

As shown in fig. 11, data representing the yield, the operation state, and the worker state, each aligned in time series, are displayed, and thus it is possible to recognize whether the worker is properly performing work. For example, in the case of an equipment failure, it may be recognized whether a worker goes to the equipment immediately after the occurrence or whether a failure recovery work is smoothly performed after the worker arrives at the equipment. For example, in the case where there is a large time difference between the time at which the equipment failure occurs and the time at which the worker starts to go to the failed equipment, it can be understood that the start of processing the equipment failure is already too late. In addition to this, for example, in the case where the waiting time of the material is long, it can be understood that the transportation of the material is delayed.

In the above, although the exemplary embodiments of the present invention are described with reference to the drawings, the exemplary embodiments are examples of the present invention, and various configurations other than the above may be adopted.

While some or all of the example embodiments are described in the following supplementary description, the present invention is not limited thereto.

1. An information processing apparatus comprising:

a first generation unit that generates a first pattern capable of representing, in time series, a period of time in which a production amount of a qualified product satisfies a reference and a period of time in which the production amount of the qualified product does not satisfy the reference, differently from each other;

a second generation unit that generates a second graph representing the work state of the worker in time series, an

And an output unit outputting a display screen including the first graphic and the second graphic.

2. The information processing apparatus according to claim 1,

wherein the output unit sets the first graphic and the second graphic on the display screen such that time axes of the first graphic and the second graphic are aligned.

3. The information processing apparatus according to 1 or 2,

wherein the second graph shows, for each operating state, a point in time at which the change to the operating state occurs, an

Wherein the second generation unit determines a point in time of changing to the operation state indicating the progress state of the operation by using sound data input of sound indicating the progress state of the operation.

4. The information processing apparatus according to any one of 1 to 3,

wherein, in the case of performing an input for selecting any of the operation states represented in the second graph, the output unit acquires a captured image stored in association with the selected operation state and outputs the acquired captured image; and

wherein the captured image associated with each work state is generated by capturing a worker of the work state using a camera.

5. The information processing apparatus according to any one of 1 to 4,

wherein the output unit highlights, in the second graph, data representing an operating state in a period of time in which the production amount of the qualified product does not satisfy the reference or data representing an operating state in a predetermined range before the operating state in the period of time.

6. The information processing apparatus according to 1 or 2,

wherein, in the case of performing input of data for selecting any time period in the first graph, the output unit performs highlighting in the second graph of data representing an operation state in the time period or data representing an operation state of a predetermined range before the operation state in the time period.

7. A control method executed by a computer, comprising:

a first generation step of generating a first pattern capable of representing, in time series, a period of time in which the production amount of the acceptable product satisfies a reference and a period of time in which the production amount of the acceptable product does not satisfy the reference, differently from each other;

a second generation step of generating a second figure which represents the work state of the worker in a time series; and

and outputting a display screen including the first graphic and the second graphic.

8. According to the control method of claim 7,

wherein, in the outputting step, the first pattern and the second pattern are disposed on the display screen such that time axes of the first pattern and the second pattern are aligned.

9. According to the control method of 7 or 8,

Wherein in the second generating step, a point in time of changing to the operation state indicating the progress state of the operation is determined by using sound data of sound input indicating the progress state of the operation.

10. The control method according to any one of claims 7 to 9,

wherein in the outputting step, in the case of performing an input for selecting any of the operation states represented in the second graph, acquiring a captured image stored in association with the selected operation state and outputting the acquired captured image; and

Wherein the captured image associated with each work state is generated by capturing a worker of the work state with a camera.

11. The control method according to any one of claims 7 to 10,

in the outputting step, data representing the operating state in a period in which the throughput of the acceptable product does not satisfy the reference or data representing the operating state in a predetermined range before the operating state in the period is highlighted in the second graph.

12. According to the control method of 7 or 8,

in the outputting step, when data for selecting any time slot in the first pattern is input, data representing an operation state in the time slot or data representing an operation state in a predetermined range before the operation state in the time slot is highlighted in the second pattern.

13. A program that causes a computer to execute each step of the control method according to any one of 7 to 12.

The present application claims priority based on japanese patent application No.2018-042156 filed on date 8 of 3.3, the entire disclosure of which is incorporated herein by reference.

Claims

1. An information processing apparatus comprising:

a first generation unit that generates a first pattern capable of representing, in time series, a period in which the production amount of the acceptable product satisfies a reference and a period in which the production amount of the acceptable product does not satisfy the reference, differently from each other;

A second generation unit that generates a second graph that represents a work state of a worker in a time series; and

an output unit that outputs a display screen including the first graphic and the second graphic, wherein

The work state includes a type of work performed by the worker.

2. The information processing apparatus according to claim 1,

3. The information processing apparatus according to claim 1 or 2,

wherein the second graph shows, for each operating state, a point in time at which the operating state is changed, and

wherein the second generation unit determines a point in time of a change to the working state indicating the progress state of the work by using sound data input of sound indicating the progress state of the work.

4. The information processing apparatus according to claim 1 or 2,

wherein, in the case where an input for selecting any of the operation states represented in the second graph is made, the output unit acquires a captured image stored in association with the selected operation state and outputs the acquired captured image; and

5. The information processing apparatus according to claim 1 or 2,

wherein the output unit highlights, in the second graph, data representing an operating state in a period of time in which the production amount of the qualified product does not satisfy the reference, or data representing an operating state in a predetermined range before the operating state in the period of time.

6. The information processing apparatus according to claim 1 or 2,

wherein, in the case where input for selecting data of any time period in the first graph is made, the output unit highlights data representing an operation state in the time period or data representing an operation state of a predetermined range before the operation state in the time period in the second graph.

7. A control method executed by a computer, the method comprising:

A second generation step of generating a second figure which represents the working state of the worker in a time series; and

an output step of outputting a display screen including the first graphic and the second graphic, wherein

The work state includes a type of work performed by the worker.

8. The control method according to claim 7,

wherein, in the outputting step, the first graphic and the second graphic are disposed on the display screen such that time axes of the first graphic and the second graphic are aligned.

9. The control method according to claim 7 or 8,

10. The control method according to claim 7 or 8,

wherein in the outputting step, in the case where an input for selecting any of the operation states represented in the second graph is made, a captured image stored in association with the selected operation state is acquired and the acquired captured image is output; and

11. The control method according to claim 7 or 8,

in the outputting step, data indicating an operation state in a time period in which the production amount of the acceptable product does not satisfy the reference or data indicating an operation state in a predetermined range before the operation state in the time period is highlighted in the second graph.

12. The control method according to claim 7 or 8,

wherein, in the outputting step, when input of data for selecting any time period in the first graph is performed, data representing an operation state in the time period or data representing an operation state in a predetermined range before the operation state in the time period is highlighted in the second graph.

13. A non-transitory computer readable medium storing a program which, when executed by a processor, causes the computer to perform each step of a control method, the method comprising:

The work state includes a type of work performed by the worker.