Work support device, work support method, and work support program

Abstract

To provide a work support device capable of providing a worker with a work instruction related to work according to the condition of the worker.SOLUTION: A work support device is provided, comprising an information determination unit configured to determine work instruction information regarding a work procedure of work of a worker on the basis of work situation information of the worker with respect to a work instruction and self-awareness information regarding the work of the worker, and an information presentation unit for presenting the work instruction information determined by the determination unit.SELECTED DRAWING: Figure 4

Description

[Technical field]

[0001] The present disclosure relates to a work assistance device, a work assistance method, and a work assistance program for assisting a worker in performing a work. [Background technology]

[0002] 2. Description of the Related Art Conventionally, various work support devices have been proposed that provide advice to a worker regarding a work performed by the worker or regarding the results of the work performed by the worker.

[0003] In this regard, Patent Document 1 proposes a method for outputting the contents of work instructions in accordance with the proficiency information of each worker. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Patent Publication No. 2023-8625 Summary of the Invention [Problem to be solved by the invention]

[0005] On the other hand, there was a problem in that the contents of the work instructions were maintained even when the worker could not understand the contents of the work instructions or felt that the work instructions were difficult.

[0006] The present disclosure is intended to solve the above-mentioned problems, and aims to provide a work assistance device, a work assistance method, and a work assistance program that are capable of providing work instructions related to a worker according to the worker's situation. [Means for solving the problem]

[0007] A work assistance device according to an example of the present disclosure includes an information determination unit that determines information on work instructions in a work procedure for a work of a worker based on work status information for the work instructions of the worker and self-awareness information about the work of the worker, and an information presentation unit that presents the information on the work instructions determined by the information determination unit. With this configuration, since the information on work instructions in the work procedure for the work of the worker is determined based on the self-awareness information about the work of the worker, it is possible to provide work instructions related to the work according to the situation of the worker.

[0008] The work assistance device further includes a work information acquisition unit that acquires work information of a worker, and an analysis unit that analyzes the work information of the worker acquired by the work information acquisition unit to generate work status information. With this configuration, since the work information of the worker is analyzed to generate the work status information, it is possible to provide work instructions related to the work according to the situation of the worker.

[0009] The work assistance device further includes a self-awareness information acquisition unit that acquires self-awareness information about the work of the worker. According to this configuration, since the self-awareness information acquisition unit that acquires self-awareness information is included, information on work instructions in the work procedure of the work of the worker is determined based on the self-awareness information about the work of the worker, so that work instructions about the work can be provided according to the situation of the worker.

[0010] The work assistance device includes an information storage unit that stores a plurality of work instruction contents, which are information on work instructions. The plurality of work contents are classified into a plurality of work instruction content groups. The information determination unit determines one of the plurality of work instruction content groups based on the work state information and the awareness information, and determines one of the plurality of work instruction contents in the determined work instruction content group. With this configuration, one work instruction content is determined from the plurality of work instruction contents included in one of the plurality of work instruction content groups, so that it is possible to provide work instructions related to work according to the situation of the worker.

[0011] The work assistance device further includes an information receiving unit that receives input of the awareness information of the worker. According to this configuration, since the work assistance device includes the information receiving unit that receives the input of the awareness information, it is possible to provide work instructions related to the work in accordance with the situation of the worker in a simple manner.

[0012] The worker's awareness information is information on whether or not the worker has understood the work instructions. According to this configuration, since the awareness information is information on whether or not the worker has understood the work instructions, it is possible to provide the worker with work instructions according to his / her situation.

[0013] The worker's awareness information is information on whether the work instructions are followed appropriately. According to this configuration, since the awareness information is information on whether the work instructions are followed appropriately, it is possible to provide the worker with work instructions according to his / her situation.

[0014] A work assistance method according to an example of the present disclosure includes a step of determining information about work instructions in a work procedure of a worker's work based on work status information for the worker's work instructions and information about the worker's awareness of the work, and a step of presenting the determined information about the work instructions.

[0015] A work support program for causing a computer to execute a work support method according to an example of the present disclosure, the work support method comprising: determining information on a work instruction in a work procedure of a work of a worker based on work state information of the worker with respect to the work instruction and self-awareness information of the worker regarding the work; and presenting information about the determined work instructions. Effect of the Invention

[0016] According to the work assistance device, the work assistance method, and the work assistance program disclosed herein, it is possible to provide work instructions related to a work in accordance with the situation of the worker. [Brief description of the drawings]

[0017] [Figure 1]FIG. 1 is a diagram illustrating a configuration of a work support system 1 according to an embodiment. [Diagram 2] 11A to 11C are diagrams illustrating a case where a worker performs a screw tightening operation using a screwdriver DR according to an embodiment. [Diagram 3] FIG. 2 is a diagram illustrating a configuration of a server 20 according to an embodiment. [Figure 4] FIG. 2 is a diagram illustrating functional blocks of a server 20 according to an embodiment. [Diagram 5] FIG. 4 is a flow diagram illustrating processing of a server 20 according to the embodiment. [Figure 6] FIG. 2 is a content determination transition diagram according to an embodiment. [Figure 7] FIG. 11 is a diagram illustrating a determination of work instruction content of a first work instruction content group according to an embodiment. [Figure 8] FIG. 11 is a diagram illustrating the determination of work instruction content of a second work instruction content group according to an embodiment. [Figure 9] FIG. 11 is a diagram illustrating a determination of work instruction content of a third work instruction content group according to an embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0018] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described in detail with reference to the drawings. In the drawings, the same or corresponding parts are designated by the same reference characters and the description thereof will not be repeated.

[0019] (Overall composition) A configuration of a work support system 1 according to an embodiment will be described. FIG. 1 is a diagram for explaining a configuration of the work support system 1 according to an embodiment. Referring to FIG. 1, the work support system 1 includes a projector 10, a server 20, a camera 30, and an input device 50. The projector 10, the camera 30, and the input device 50 are each connected to the server 20. As an example, a worker performs a predetermined task on a workpiece W placed on a worktable TB using a screwdriver DR. In this example, as an example of the predetermined task, a case where a worker performs a screw tightening task on the workpiece W using the screwdriver DR will be described. A case where a screw tightening task is repeatedly performed on the workpiece W will be described. Although not shown, the screwdriver DR is provided with a tilt sensor, which will be described later. In addition, although not shown, the worktable TB is provided with a pressure sensor. The tilt sensor and the pressure sensor are provided so as to be able to communicate with the server 20.

[0020] As an example, the projector 10 projects (outputs) information on work instructions for a predetermined task onto a projection area DP that is a part of the worktable TB. The camera 30 captures a predetermined work state of the worker and outputs the captured image data to the server 20 as work information. The input device 50 is a device for inputting the worker's awareness information regarding the task. As an example, the input device 50 is provided with a switch-type button. The input device 50 is provided so as to be capable of receiving input of information regarding the worker's awareness. For example, the input device 50 is provided so as to be capable of selectively receiving input of information regarding whether the task according to the work instructions is appropriate or not as the awareness information. For example, the worker inputs awareness information regarding the predetermined task for each predetermined task via the input device 50. When the worker determines that the predetermined task has been performed according to the work instructions as the awareness information, the worker presses one of two switches provided on the input device 50. As a result, the worker's awareness information (the task is appropriate) is transmitted to the server 20 via the input device 50. Furthermore, when the worker determines that the worker is not performing the specified work in accordance with the work instructions as self-awareness information, the worker presses the other of the two switches provided on the input device 50. This causes the worker's self-awareness information (the work is inappropriate) to be transmitted to the server 20 via the input device 50.

[0021] The server 20 acquires captured image data input via the camera 30 and / or data input via the driver DR as work information, determines information on work instructions in the work procedure of the worker's work based on work status information obtained by analyzing it and self-awareness information input via the input device 50, and presents the determined information on work instructions. For example, the server 20 presents the determined information on work instructions via the projector 10.

[0022] In this example, a case where a worker uses a screwdriver DR to perform a screw tightening operation on a workpiece W will be described as an example, but the present invention is not limited to this and other operations may be performed. Note that, as an example, a method using a screwdriver DR will be described, but a method not using the screwdriver DR may be used. In this example, a case where information on work instructions for a predetermined operation is projected (output) onto a projection area DP using a projector 10 will be described as an example, but the present invention is not limited to this and, for example, information on work instructions for a predetermined operation may be presented to a worker using a display device instead of the projector 10. Also, in this example, a case where information on work instructions for a predetermined operation is visually presented will be described, but, for example, the information may be presented to a worker by voice using a speaker. Alternatively, a speaker and a projector 10 may be used in combination.

[0023] FIG. 2 is a diagram for explaining a case where an operator uses a screwdriver DR according to an embodiment to perform screw tightening work. Referring to FIG. 2, the screwdriver DR is provided with an inclination sensor 16. The inclination sensor 16 is composed of, for example, an acceleration sensor or a gyro sensor, and continuously detects the inclination angle of the cutting edge member of the screwdriver DR with respect to the workpiece W, and transmits data representing the detected inclination angle to the server 20. The inclination sensor 16 is provided with a wireless communication function capable of communicating with the server 20. As the wireless interface, for example, an interface adopting a low-power data communication standard such as Bluetooth (registered trademark) is used. Note that, instead of the wireless interface, a wired communication line such as a wired LAN (Local Area Network) can be used, and a power cord can also be used as the communication line.

[0024] As an example, the workbench TB is provided with a pressure sensor 15. The pressure sensor 15 continuously detects the pressure (load) applied to the workpiece W via the cutting edge member of the screwdriver DR, and transmits data representing the detected pressure value to the server 20. The pressure sensor 15 is provided with a wireless communication function capable of communicating with the server 20. As the wireless interface, an interface adopting a low-power data communication standard such as Bluetooth (registered trademark) is used. Note that instead of the wireless interface, a wired communication line such as a wired LAN (Local Area Network) can be used, and a power cord can also be used as the communication line. Note that at least one of the pressure sensor 15 and the tilt sensor 16 may be configured to be provided in the screwdriver DR.

[0025] FIG. 3 is a diagram for explaining the configuration of the server 20 according to the embodiment. Referring to FIG. 3, the server 20 typically has a structure according to a general-purpose computer architecture. Specifically, the server 20 includes a processor 101 such as a CPU (Central Processing Unit) or an MPU (Micro-Processing Unit), a memory 102, a storage 103, a display controller 104, an input interface 105, and a communication interface 106. These components are connected to each other via a bus so as to be able to perform data communication. The processor 101 realizes various processes according to the present embodiment by expanding various programs stored in the storage 103 into the memory 102 and executing them. The memory 102 is typically a volatile storage device such as a DRAM (Dynamic Random Access Memory) and stores programs read from the storage 103, etc. The storage 103 is typically a non-volatile magnetic storage device such as a hard disk drive. The storage 103 stores a task support program 131 executed by the processor 101. The storage 103 also stores work information 132 and content information 133. The work information 132 is data on the work status of a worker in response to a work instruction transmitted from the camera 30, the pressure sensor 15, and the tilt sensor 16 and received via the communication interface 106. The content information 133 is information on the work instruction for a predetermined work that has been stored in advance.

[0026] Various programs installed in the storage 103 are distributed in a state stored in a memory card or the like. The display controller 104 is connected to the projector 10, and outputs a signal for displaying various information to the projector 10 according to an internal command from the processor 101. The input interface 105 is connected to the input device 50, and receives the worker's awareness information input via the input device 50. The input interface 105 may mediate data transmission of input devices such as a keyboard, a mouse, a touch panel, and a dedicated console, not shown. The communication interface 106 mediates data transmission between the processor 101 and an external device (for example, the camera 30, the pressure sensor 15, and the tilt sensor 16). The communication interface 106 typically includes Ethernet (registered trademark) and USB (Universal Serial Bus). Various programs stored in the storage 103 may be downloaded from a distribution server or the like via the communication interface 106.

[0027] When using a computer having a structure conforming to the above-mentioned general-purpose computer architecture, an OS (Operating System) for providing basic functions of the computer may be installed in addition to an application for providing the functions according to the present embodiment. In this case, the program according to the present embodiment may execute processing by calling necessary modules among program modules provided as part of the OS in a predetermined order and timing. That is, the program according to the present embodiment itself may not include the above-mentioned modules, and may execute processing in cooperation with the OS. Alternatively, some or all of the functions provided by the execution of the task support program 131 may be implemented as a dedicated hardware circuit.

[0028] Fig. 4 is a diagram illustrating functional blocks of the server 20 according to the embodiment. Referring to Fig. 4, the server 20 constitutes a work support device, and includes a work information acquisition unit 110, a subjective information acquisition unit 111, an analysis unit 112, an information determination unit 114, and an information presentation unit 115. Each functional block is realized by the processor 101 executing a work support program 131.

[0029] The work information acquisition unit 110 acquires image data from the camera 30 as work information and stores it in the storage 103 as work information 132. The work information acquisition unit 110 acquires wireless signals from the pressure sensor 15 and the tilt sensor 16 as work information. The work information acquisition unit 110 acquires wireless signals transmitted from the pressure sensor 15 and the tilt sensor 16, decodes the signals, acquires pressure data and tilt data for the workpiece W, and stores them in the storage 103 as work information 132. The self-awareness information acquisition unit 111 acquires the worker's self-awareness information input via the input device 50. The analysis unit 112 analyzes the work information 132 stored in the storage 103 based on the work information 132 to generate work status information for the worker's work instruction. Specifically, the analysis unit 112 analyzes the work information 132, which is tilt data of the worker's work status transmitted from the tilt sensor 16, and generates an analysis result indicating whether the driver DR is straight with respect to the screw as work status information. The analysis unit 112 analyzes the work information 132, which is image data of the worker's working state input via the camera 30, and generates an analysis result as work state information indicating whether the worker is holding the screwdriver DR without straining the wrist, i.e., whether the wrist is bent or not. The analysis unit 112 analyzes the work information 132, which is pressure data of the worker's working state transmitted from the pressure sensor 15, and generates an analysis result as work state information indicating whether the screwdriver DR is being pressed with too much force.

[0030] The information determination unit 114 determines information on work instructions in the work procedure of the worker's work, based on the work state information on the worker's work instructions and the worker's awareness information on the work, which are the analysis results of the analysis unit 112. Specifically, the information determination unit 114 determines information on work instructions in accordance with a content determination transition diagram described later.

[0031] The information presenting unit 115 presents the information of the work instruction determined by the information determining unit 114. Specifically, the information presenting unit 115 projects (outputs) the content of the determined work instruction onto the projection region DP via the projector 10.

[0032] FIG. 5 is a flow diagram for explaining the processing of the server 20 according to the embodiment. Referring to FIG. 5, the server 20 determines the content of the work instructions to be displayed to the worker (step S0). Specifically, the information determination unit 114 determines the content of the work instructions in the work procedure of the work to be displayed to the worker. The information determination unit 114 determines the content of a preset initial state as an example. The information determination unit 114 determines the content D1 of the first work instruction content group corresponding to the state N1 of the content determination transition diagram described later. Next, the server 20 outputs the content (step S2). The information presentation unit 115 projects (outputs) the determined content to the projection area DP via the projector 10.

[0033] Next, the server 20 acquires the work information of the worker (step S4). Specifically, the work information acquisition unit 110 decodes the image data from the camera 30 and the wireless signals transmitted from the pressure sensor 15 and the tilt sensor 16 to acquire the pressure data and tilt data as work information. Next, the server 20 analyzes the acquired work information of the worker (step S6). Specifically, the analysis unit 112 analyzes the work information stored in the storage 103. Next, the server 20 generates work status information that is the analysis result (step S8). Specifically, the analysis unit 112 analyzes the work information that is the tilt data of the work state of the worker transmitted from the tilt sensor 16, and generates an analysis result indicating whether the screwdriver DR is straight with respect to the screw as the work status information. The analysis unit 112 analyzes the work information that is the image data of the work state of the worker inputted via the camera 30, and generates an analysis result indicating whether the screwdriver DR is held comfortably on the wrist, that is, whether the wrist is bent, as the work status information. The analysis unit 112 analyzes the work information 132, which is pressure data on the work state of the worker transmitted from the pressure sensor 15, and generates, as work state information, an analysis result indicating whether the driver DR is being pressed with too much force.

[0034] Next, the server 20 acquires the worker's awareness information (step S10). Specifically, the awareness information acquisition unit 111 acquires the worker's awareness information input via the input device 50. Next, the server 20 determines the content to be displayed to the worker in the next work based on the worker's work status information and awareness information (step S12). Specifically, the information determination unit 114 determines the information of the work instruction based on the worker's work status information and awareness information using a content determination transition diagram described later.

[0035] Next, the server 20 determines whether the work has been completed (step S14). In step S14, if the server 20 determines that the work has been completed (YES in step S14), the server 20 ends the processing (END). For example, the server 20 may determine that the work has been completed when the worker leaves the workbench TB based on image data from the camera 30. Alternatively, the server 20 may determine that the work has been completed when the workpiece W is not present.

[0036] On the other hand, if the server 20 determines that the work is not finished (NO in step S14), the process returns to step S2, and the server 20 outputs the content (step S2). The information presenter 115 projects (outputs) the determined content onto the projection area DP via the projector 10, and repeats the above process. For example, the server 20 may determine that the next work is to be started when the worker grasps a new workpiece W based on the image data from the camera 30, and may determine that the work is not finished and output the content. Alternatively, the server 20 may detect the input of a switch to start the next work, and output the content in accordance with the detection.

[0037] (Content Decision) FIG. 6 is a content determination transition diagram according to an embodiment. With reference to FIG. 6, the content information includes a plurality of work instruction contents. Specifically, the plurality of work instruction contents are classified into three groups, first to third work instruction content groups, as an example. The work instruction contents determined in the content determination transition diagram transition from the first work instruction content group to the second work instruction content group in accordance with the worker's proficiency. Also, the work instruction contents determined in the content determination transition diagram transition from the second work instruction content group to the third work instruction content group in accordance with the worker's proficiency.

[0038] The first work instruction content group includes work instruction contents D1, D1a, and D1b (also simply referred to as contents). The second work instruction content group includes work instruction contents D2, D2a, and D2b. The third work instruction content group includes work instruction contents D3, D3a, and D3b.

[0039] The information determination unit 114 determines one of the first to third work instruction content groups, and determines one of the work instruction contents in the determined work instruction content group. The information presentation unit 115 presents the determined work instruction content to the worker as information on the next work instruction.

[0040] (First work instruction content group) In the initial state, the first work instruction content group is selected, and the work instruction content D1 of the first work instruction content group is determined. That is, the initial state in the content determination transition diagram is state N1.

[0041] The worker checks the information of the work instruction in the work procedure of "Hold the screwdriver straight against the screw," which is the work instruction content D1, and starts the work.

[0042] The work information acquisition unit 110 acquires tilt data of the work state of the worker inputted via the screwdriver DR as work information. The analysis unit 112 uses the tilt data to analyze whether the screwdriver DR is set straight on the screw. The analysis unit 112 generates work state information ("straight" or "not straight") which is an analysis result of whether the screwdriver DR is set straight on the basis of the work information, and outputs the information determination unit 114. The self-awareness information acquisition unit 111 acquires the self-awareness information of the worker inputted via the input device 50. The worker inputs self-awareness information about a predetermined work for each predetermined work via the input device 50. When the worker determines that a predetermined work according to a work instruction is appropriate or inappropriate as self-awareness information, the worker presses one or the other of two switches provided on the input device 50. The self-awareness information acquisition unit 111 acquires the self-awareness information of the worker regarding the work instruction in the work procedure of "set the screwdriver straight on the screw" which is the work instruction content D1 via the input device 50. As an example, the subjective information acquiring unit 111 acquires the subjective information of the worker ("straightening the handle" or "not straightening the handle") in accordance with pressing one or the other of the two switches.

[0043] When the state is N1, the information determination unit 114 transitions the state N1 to state N2 based on the self-awareness information ((1) "straightened") and the work state information ((2) "straightened") which is the analysis result of the analysis unit 112. The information determination unit 114 determines a second work instruction content group corresponding to the state N2, and determines work instruction content D2 ("hold the screwdriver so that your wrist is not strained") of the second work instruction content group. The information presentation unit 115 presents the determined work instruction content D2 to the worker as information on the next work instruction. When the state is N1, the information determination unit 114 maintains the state N1 based on the self-awareness information ((1) "not straightened") and the work state information ((2) "not straightened") which is the analysis result of the analysis unit 112. The information determination unit 114 determines a first work instruction content group corresponding to the state N1, and determines work instruction content D1 ("Place the screwdriver straight on the screw") of the first work instruction content group. The information presentation unit 115 presents the determined work instruction content D1 to the worker as information on the next work instruction.

[0044] When the state is N1, the information determination unit 114 transitions from state N1 to state N1A based on the self-awareness information ((1) "straightened") and the work state information ((2) "not straightened") that is the analysis result of the analysis unit 112. The information determination unit 114 determines a first work instruction content group corresponding to state N1A, and determines work instruction content D1a ("hold the screwdriver so that it is at the center of the body") of the first work instruction content group. The information presentation unit 115 presents the determined work instruction content D1a to the worker as information of the next work instruction. When the state is N1, the information determination unit 114 transitions from state N1 to state N1B based on the self-awareness information ((1) "not straightened") and the work state information ((2) "straightened") that is the analysis result of the analysis unit 112. The information determination unit 114 determines a first work instruction content group corresponding to the state N1B, and determines work instruction content D1b ("The driver who worked last time was straight. Work in the same way.") of the first work instruction content group. The information presentation unit 115 presents the determined work instruction content D1b to the worker as information on the next work instruction.

[0045] When the state is N1A, the information determination unit 114 maintains the state N1A based on the self-awareness information ((1) "straightened" or "not straightened") and the work state information ((2) "not straightened") which is the analysis result of the analysis unit 112. The information determination unit 114 determines a first work instruction content group corresponding to the state N1A, and determines work instruction content D1a ("hold the screwdriver so that it is at the center of the body") of the first work instruction content group. The information presentation unit 115 presents the determined work instruction content D1a to the worker as information of the next work instruction. When the state is N1A, the information determination unit 114 transitions from state N1A to state N1B based on the self-awareness information ((1) "not straightened") and the work state information ((2) "straightened") which is the analysis result of the analysis unit 112. The information determination unit 114 determines a first work instruction content group corresponding to the state N1B, and determines work instruction content D1b ("The driver who worked last time was straight. Work in the same way.") of the first work instruction content group. The information presentation unit 115 presents the determined work instruction content D1b to the worker as information on the next work instruction.

[0046] When the state is N1A, the information determination unit 114 transitions from state N1A to state N1 based on the awareness information ((1) "straightening") and the work state information ((2) "straightened") that is the analysis result of the analysis unit 112. The information determination unit 114 determines a first work instruction content group corresponding to state N1, and determines work instruction content D1 ("hold the screwdriver straight against the screw") of the first work instruction content group. The information presentation unit 115 presents the determined work instruction content D1 to the worker as information on the next work instruction.

[0047] When the state is N1B, the information determination unit 114 maintains the state N1B based on the self-awareness information ((1) "not straightened") and the work state information ((2) "straightened") which is the analysis result of the analysis unit 112. The information determination unit 114 determines a first work instruction content group corresponding to the state N1B, and determines work instruction content D1b ("The driver who worked last time was straight. Work in the same way") of the first work instruction content group. The information presentation unit 115 presents the determined work instruction content D1b to the worker as information of the next work instruction. When the state is N1B, the information determination unit 114 transitions from state N1B to state N1A based on the self-awareness information ((1) "straightened" or "not straightened") and the work state information ((2) "not straightened") which is the analysis result of the analysis unit 112. The information determination unit 114 determines a first work instruction content group corresponding to the state N1A, and determines work instruction content D1b ("Hold the screwdriver so that it is at the center of your body") of the first work instruction content group. The information presentation unit 115 presents the determined work instruction content D1b to the worker as information on the next work instruction.

[0048] When the state is N1B, the information determination unit 114 transitions from state N1B to state N1 based on the awareness information ((1) "straightening") and the work state information ((2) "straightened") that is the analysis result of the analysis unit 112. The information determination unit 114 determines a first work instruction content group corresponding to state N1, and determines work instruction content D1 ("hold the screwdriver straight against the screw") of the first work instruction content group. The information presentation unit 115 presents the determined work instruction content D1 to the worker as information on the next work instruction.

[0049] (Second Work Instruction Content Group) The worker checks the information of the work instruction in the work procedure "Hold the screwdriver comfortably on your wrist", which is work instruction content D2 corresponding to state N2, and starts the work.

[0050] The work information acquisition unit 110 acquires image data of the work state of the worker inputted through the camera 30 as work information. The analysis unit 112 uses the image data to analyze whether or not the wrist is bent during the screw tightening work process. The analysis unit 112 generates work state information ("the wrist is bent" or "the wrist is not bent") which is an analysis result of whether or not the screwdriver is held without strain on the wrist based on the work information, and outputs it to the information determination unit 114. The self-awareness information acquisition unit 111 acquires the worker's self-awareness information inputted through the input device 50. The worker inputs self-awareness information related to a predetermined work for each predetermined work through the input device 50. When the worker determines that the predetermined work has been performed or not in accordance with the work instruction as self-awareness information, the worker presses one or the other of two switches provided on the input device 50. The self-awareness information acquisition unit 111 acquires the worker's self-awareness information regarding the work instruction in the work procedure of "hold the screwdriver without strain on the wrist" which is the work instruction content D2 through the input device 50. As an example, the subjective information acquiring unit 111 acquires the subjective information of the worker ("the wrist is bent" or "the wrist is not bent") according to pressing one or the other of the two switches.

[0051] When the state is N2, the information determination unit 114 transitions the state N2 to state N3 based on the subjective information ((1) "wrist is not bent") and the work state information ((2) "wrist is not bent") which is the analysis result of the analysis unit 112. The information determination unit 114 determines a third work instruction content group corresponding to the state N3, and determines work instruction content D3 ("do not push the screwdriver with too much force") of the third work instruction content group. The information presentation unit 115 presents the determined work instruction content D3 to the worker as information for the next work instruction. When the state is N2, the information determination unit 114 maintains the state N2 based on the subjective information ((1) "wrist is bent") and the work state information ((2) "wrist is bent") which is the analysis result of the analysis unit 112. The information determination unit 114 determines a second work instruction content group corresponding to the state N2, and determines work instruction content D2 ("Hold the screwdriver in a way that does not strain your wrist") of the second work instruction content group. The information presentation unit 115 presents the determined work instruction content D2 to the worker as information on the next work instruction.

[0052] When the state is N2, the information determination unit 114 transitions from state N2 to state N2A based on the self-awareness information ((1) "your wrist is not bent") and the work state information ((2) "your wrist is bent") that is the analysis result of the analysis unit 112. The information determination unit 114 determines a second work instruction content group corresponding to state N2A, and determines work instruction content D2a ("adjust your posture so that a triangle is formed with your body center, elbow, and screwdriver") of the second work instruction content group. The information presentation unit 115 presents the determined work instruction content D2a to the worker as information on the next work instruction. When the state is N2, the information determination unit 114 transitions from state N2 to state N2B based on the self-awareness information ((1) "your wrist is bent") and the work state information ((2) "your wrist is not bent") that is the analysis result of the analysis unit 112. The information determination unit 114 determines a second work instruction content group corresponding to the state N2B, and determines work instruction content D2b of the second work instruction content group ("The previous work was performed with the wrist in a straight position. Perform the work in the same manner."). The information presentation unit 115 presents the determined work instruction content D2b to the worker as information on the next work instruction.

[0053] In the case of state N2A, the information determination unit 114 maintains the state N2A based on the subjective information ((1) "wrist is not bent" or "wrist is bent") and the work state information ((2) "wrist is bent") which is the analysis result of the analysis unit 112. The information determination unit 114 determines a second work instruction content group corresponding to the state N2A, and determines work instruction content D2a ("adjust your posture so that a triangle is formed with the center of the body, elbow, and screwdriver") of the second work instruction content group. The information presentation unit 115 presents the determined work instruction content D2a to the worker as information of the next work instruction. In the case of state N2A, the information determination unit 114 transitions from state N2A to state N2B based on the subjective information ((1) "wrist is bent") and the work state information ((2) "wrist is not bent") which is the analysis result of the analysis unit 112. The information determination unit 114 determines a second work instruction content group corresponding to the state N2B, and determines work instruction content D2b of the second work instruction content group ("The previous work was performed with the wrist in a straight position. Perform the work in the same manner."). The information presentation unit 115 presents the determined work instruction content D2b to the worker as information on the next work instruction.

[0054] When the state is N2A, the information determination unit 114 transitions from state N2A to state N2 based on the subjective information ((1) "your wrist is not bent") and the work state information ((2) "your wrist is not bent") that is the analysis result of the analysis unit 112. The information determination unit 114 determines a second work instruction content group that corresponds to state N2, and determines work instruction content D2 ("hold the screwdriver so that your wrist is not strained") of the second work instruction content group. The information presentation unit 115 presents the determined work instruction content D2 to the worker as information on the next work instruction.

[0055] In the case of state N2B, the information determination unit 114 maintains the state N2B based on the subjective information ((1) "wrist is bent") and the work state information ((2) "wrist is not bent") which is the analysis result of the analysis unit 112. The information determination unit 114 determines a second work instruction content group corresponding to the state N2B, and determines work instruction content D2b ("The previous work was in a position where the wrist was not bent. Work in the same way") of the second work instruction content group. The information presentation unit 115 presents the determined work instruction content D2b to the worker as information of the next work instruction. In the case of state N2B, the information determination unit 114 transitions from state N2B to state N2A based on the subjective information ((1) "wrist is not bent" or "wrist is bent") and the work state information ((2) "wrist is bent") which is the analysis result of the analysis unit 112. The information determination unit 114 determines a second work instruction content group corresponding to the state N2A, and determines work instruction content D2a ("Adjust your posture so that a triangle is formed with the center of your body, your elbow, and the screwdriver.") of the second work instruction content group. The information presentation unit 115 presents the determined work instruction content D2a to the worker as information on the next work instruction.

[0056] When the state is N2B, the information determination unit 114 transitions the state N2B to state N2 based on the subjective information ((1) "your wrist is not bent") and the work state information ((2) "your wrist is not bent") that is the analysis result of the analysis unit 112. The information determination unit 114 determines a second work instruction content group that corresponds to the state N2, and determines work instruction content D2 ("hold the screwdriver so that your wrist is not strained") of the second work instruction content group. The information presentation unit 115 presents the determined work instruction content D2 to the worker as information on the next work instruction.

[0057] (Third Work Instruction Content Group) The worker checks the information of the work instruction in the work procedure of "Do not press the screwdriver too hard", which is the work instruction content D3 corresponding to the state N3, and starts the work.

[0058] The work information acquisition unit 110 acquires pressure data of the work state of the worker inputted via the driver DR as work information. The analysis unit 112 uses the pressure data to analyze whether the driver DR is being pressed with a strong force. The analysis unit 112 generates work state information ("strong force is not applied" or "strong force is applied") which is an analysis result of whether the driver DR is being pressed with a strong force based on the work information, and outputs it to the information determination unit 114. The self-awareness information acquisition unit 111 acquires the self-awareness information of the worker inputted via the input device 50. The worker inputs self-awareness information regarding a predetermined work for each predetermined work via the input device 50. When the worker determines that the predetermined work has been performed or not in accordance with the work instruction as self-awareness information, the worker presses one or the other of two switches provided on the input device 50. The self-awareness information acquisition unit 111 acquires the self-awareness information of the worker regarding the work instruction in the work procedure of "Do not press the driver with a strong force" which is the work instruction content D3 via the input device 50. As an example, the subjective information acquiring unit 111 acquires the subjective information of the worker ("pressing with great force" or "not pressing with great force") according to pressing one or the other of the two switches.

[0059] In the case of state N3, the information determination unit 114 transitions state N3 to state N4 based on the self-awareness information ((1) "not strongly pushing") and the work state information ((2) "strong force not applied") which is the analysis result of the analysis unit 112. The information determination unit 114 determines not to display the content as state N4. The information presentation unit 115 does not present the information of the next work instruction to the worker. In the case of state N3, the information determination unit 114 maintains the state of state N3 based on the self-awareness information ((1) "strong force is applied") and the work state information ((2) "strong force is applied") which is the analysis result of the analysis unit 112. The information determination unit 114 determines a third work instruction content group corresponding to state N3, and determines work instruction content D3 ("do not strongly push the screwdriver") of the third work instruction content group. The information presenting unit 115 presents the determined work instruction content D3 to the worker as information on the next work instruction.

[0060] When the state is N3, the information determination unit 114 transitions the state N3 to state N3A based on the self-awareness information ((1) "not pressing hard") and the work state information ((2) "strong force is applied") that is the analysis result of the analysis unit 112. The information determination unit 114 determines a third work instruction content group corresponding to the state N3A, and determines work instruction content D3a ("hold the screwdriver between your thumb and middle finger and press it against the screwdriver") of the third work instruction content group. The information presentation unit 115 presents the determined work instruction content D3a to the worker as information on the next work instruction. When the state is N3, the information determination unit 114 transitions the state N3 to state N3B based on the self-awareness information ((1) "pressing hard") and the work state information ((2) "not pressing hard") that is the analysis result of the analysis unit 112. The information determination unit 114 determines a third work instruction content group corresponding to the state N3B, and determines work instruction content D3b ("You did not press hard the previous time. Do the same work.") of the third work instruction content group. The information presentation unit 115 presents the determined work instruction content D3b to the worker as information on the next work instruction.

[0061] When the state is N3A, the information determination unit 114 maintains the state N3A based on the self-awareness information ((1) "pushing hard" or "not pushing hard") and the work state information ((2) "hard force is applied") which is the analysis result of the analysis unit 112. The information determination unit 114 determines a third work instruction content group corresponding to the state N3A, and determines work instruction content D3a ("hold the screwdriver between the thumb and middle finger and press it against the screwdriver") of the third work instruction content group. The information presentation unit 115 presents the determined work instruction content D3a to the worker as information for the next work instruction. When the state is N3A, the information determination unit 114 transitions the state N3A to state N3B based on the self-awareness information ((1) "pushing hard") and the work state information ((2) "hard force is not applied") which is the analysis result of the analysis unit 112. The information determination unit 114 determines a third work instruction content group corresponding to the state N3B, and determines work instruction content D3b ("You did not press hard the previous time. Do the same work.") of the third work instruction content group. The information presentation unit 115 presents the determined work instruction content D3b to the worker as information on the next work instruction.

[0062] When the state is N3A, the information determination unit 114 transitions from state N3A to state N3 based on the awareness information ((1) "not pressing hard") and the work state information ((2) "no strong force is applied") that is the analysis result of the analysis unit 112. The information determination unit 114 determines a third work instruction content group corresponding to state N3, and determines work instruction content D3 ("do not press the screwdriver hard") of the third work instruction content group. The information presentation unit 115 presents the determined work instruction content D3 to the worker as information on the next work instruction.

[0063] In the case of state N3B, the information determination unit 114 maintains the state N3B based on the self-awareness information ((1) "strong force is applied") and the work state information ((2) "strong force is not applied") which is the analysis result of the analysis unit 112. The information determination unit 114 determines a third work instruction content group corresponding to the state N3B, and determines the work instruction content D3b ("The previous work was not pressed with strong force. Work in the same way") of the third work instruction content group. The information presentation unit 115 presents the determined work instruction content D3b to the worker as information on the next work instruction. In the case of state N3B, the information determination unit 114 transitions from state N3B to state N3A based on the self-awareness information ((1) "strong force is applied" or "not strong force is applied") and the work state information ((2) "strong force is applied") which is the analysis result of the analysis unit 112. The information determination unit 114 determines a third work instruction content group corresponding to the state N3A, and determines work instruction content D3a ("Hold the screwdriver between your thumb and middle finger and press it against the work area") of the third work instruction content group. The information presentation unit 115 presents the determined work instruction content D3a to the worker as information on the next work instruction.

[0064] When the state is N3B, the information determination unit 114 transitions from state N3B to state N3 based on the awareness information ((1) "not pressing hard") and the work state information ((2) "no strong force applied") that is the analysis result of the analysis unit 112. The information determination unit 114 determines a third work instruction content group corresponding to state N3, and determines work instruction content D3 ("do not press the screwdriver hard") of the third work instruction content group. The information presentation unit 115 presents the determined work instruction content D3 to the worker as information on the next work instruction.

[0065] 7 is a diagram illustrating the determination of work instruction content of the first work instruction content group according to an embodiment. With reference to FIG. 7, information on the next work instruction is determined based on (1) awareness information ("straightened" or "not straightened") and (2) work status information ("straightened" or "not straightened").

[0066] 8 is a diagram for explaining the determination of the work instruction content of the second work instruction content group according to the embodiment. With reference to FIG. 8, the information of the next work instruction is determined based on (1) the awareness information ("wrist is bent" or "wrist is not bent") and (2) the work state information ("wrist is not bent" or "wrist is bent").

[0067] 9 is a diagram for explaining the determination of the work instruction content of the third work instruction content group according to the embodiment. With reference to FIG. 9, the information of the next work instruction is determined based on (1) awareness information ("strong force is applied" or "strong force is not applied") and (2) work state information ("strong force is not applied" or "strong force is applied").

[0068] In this example, the first to third work instruction content groups are provided, but a configuration may be adopted in which further work instruction content groups are provided, or only one work instruction content group is provided.

[0069] In this example, since information on work instructions in the work procedure of the worker's work is determined based on the worker's awareness information on the work, it is possible to provide work instructions related to the work according to the worker's situation. For example, when the worker's awareness information determines that the work is not being performed appropriately, if the work is actually being performed appropriately, it is possible to present work instructions so that the worker can continue the work with peace of mind according to the worker's situation. For example, when the worker's awareness information determines that the work is being performed appropriately, if the work is not actually being performed appropriately, it is possible to present work instructions so that the worker can continue the work with peace of mind according to the worker's situation.

[0070] In this embodiment, as an example, a case has been described in which the worker's awareness information (whether the work is appropriate or inappropriate) is transmitted to the server 20 via the input device 50. However, the present invention is not limited to this, and the worker's awareness information regarding the understanding of the contents of the work instructions (whether the worker understands the work instructions or does not understand the work instructions) may be transmitted to the server 20. For example, when the worker determines that the work instructions are not understandable based on the worker's awareness information, it is possible to present the work instructions so that the worker can continue the work with peace of mind according to the worker's situation by changing the work instructions so that the worker can understand the work instructions. For example, when the worker determines that the work instructions are understandable based on the worker's awareness information, it is possible to present the work instructions so that the worker can perform the work appropriately according to the worker's situation by presenting different work instructions so that the worker can perform the work appropriately if the worker is not actually performing the work appropriately.

[0071] In this embodiment, as an example, a case has been described in which two switches are provided on the input device 50 to classify the worker's awareness information into two categories. Specifically, a case has been described in which the awareness information is classified into appropriate work and inappropriate work, but the present invention is not limited to this. A plurality of switches may be provided to classify the worker's awareness information into a plurality of patterns, and information on the work instructions in the work procedure of the worker's work may be determined based on the work status information of the worker with respect to the work instructions and the worker's awareness information regarding the work, which are the analysis results of the analysis unit 112.

[0072] In this example, a configuration has been described in which a switch that the worker can selectively press is provided as an example of the input device 50, but the input device is not limited to a switch, and the worker's awareness information may be received using a keyboard or other input device. For example, a microphone may be used as the input device 50. For example, the worker's awareness information may be acquired by inputting voice into the microphone.

[0073] In this example, the method of determining whether the screwdriver is held upright against the screw and whether the screwdriver is not pressed with a strong force using the tilt sensor 16 and pressure sensor 15 of the screwdriver DR has been described, but the above determination may be performed using other methods without being limited to this. For example, image data from the camera 30 may be analyzed to determine whether the screwdriver is held upright against the screw, and the work status information may be generated. Similarly, image data from the camera 30 may be analyzed to determine whether the screwdriver is pressed with a strong force, and the work status information may be generated.

[0074] In this example, a method has been described in which the analysis unit 112 analyzes the work information to generate the work status information of the worker, but the present invention is not limited to this, and a method of inputting work status information from outside may also be adopted. For example, a manager of the workers may observe the work of the workers following the work instructions, and input work status information based on the manager's observation to the server 20. For example, an input device 50 for the manager may be provided, and the work status information ("is straight" or "is not straight") may be input to the server 20.

[0075] Although the embodiment of the present invention has been described, the embodiment disclosed herein should be considered as illustrative and not restrictive in all respects. The scope of the present invention is defined by the claims, and it is intended to include all modifications within the scope and meaning equivalent to the claims. [Explanation of symbols]

[0076] 1 work support system, 10 projector, 11 housing, 12 cutting edge member, 14 power supply circuit, 15 pressure sensor, 16 tilt sensor, 17 communication unit, 18 antenna, 20 server, 30 camera, 50 input device, 101 processor, 102 memory, 103 storage, 104 display controller, 105 input interface, 106 communication interface, 110 work information acquisition unit, 111 self-awareness information acquisition unit, 112 analysis unit, 114 information determination unit, 115 information presentation unit, 131 work support program, 132 work information, 133 content information.

Claims

1. an information determination unit that determines information on a work instruction in a work procedure of a work of the worker based on work state information of the worker with respect to the work instruction and self-awareness information of the worker regarding the work; and an information presentation unit that presents information on the work instruction determined by the information determination unit.

2. A work information acquisition unit that acquires work information of the worker; The work support device according to claim 1 , further comprising an analysis unit that analyzes the work information of the worker acquired by the work information acquisition unit to generate work status information.

3. The work support device according to claim 1 , further comprising a subjective information acquisition unit for acquiring subjective information regarding the work of the worker.

4. an information storage unit for storing a plurality of work instruction contents which are information on the work instructions; The plurality of work contents are classified into a plurality of work instruction content groups, The work support device according to claim 1 , wherein the information determination unit determines one of the plurality of work instruction content groups based on the work status information and the awareness information, and determines one of the plurality of work instruction contents in the determined work instruction content group.

5. The work support device according to claim 1 , further comprising an information receiving unit that receives input of the worker's awareness information.

6. 6. The work support device according to claim 5, wherein the worker's awareness information is information regarding whether the worker has understood the work instructions.

7. 6. The work support device according to claim 5, wherein the worker's awareness information is information regarding whether the work instruction is being followed appropriately.

8. determining information on a work instruction in a work procedure of the work of the worker based on work status information of the worker with respect to the work instruction and awareness information of the worker regarding the work; and a step of presenting information on the determined work instructions.

9. A work assistance program for causing a computer to execute a work assistance method, determining information on a work instruction in a work procedure of the work of the worker based on work status information of the worker with respect to the work instruction and awareness information of the worker regarding the work; and a step of presenting information on the determined work instructions.

Images