Job content determination system, job content determination method, and program

Abstract

The invention relates to a job content determination system, a job content determination method, and a program. A work content specifying system for specifying the content of a work being performed by a worker in a series of works comprising a plurality of consecutive element works, the work content specifying system comprising: an information acquiring unit for acquiring sensor information indicating the state of the worker when the worker performs the element works; a storage unit that stores a determination model for specifying each of the element jobs; a work specifying means for specifying the element work being performed by the worker by comparing the sensor information of the worker acquired by the information acquiring means with the determination model for each element work stored by the storage means; and a priority setting means for setting the priority of the determination model for each of the element jobs when the job specifying means performs the comparison.

Description

Technical Field

[0001] The present disclosure relates to a work content determination system, a work content determination method, and a program for determining work content. Background Art

[0002] There is known a system for determining the work content of an operator based on sensor information of the operator, etc. (for example, refer to Japanese Patent Application Laid-Open No. 2019-41811). Summary of the invention

[0003] For example, by comparing the operator's sensor information with the judgment model of each operation, the content of the operation being performed by the operator can be determined. At this time, if the operator's sensor information and the judgment model of each operation are compared in a random order, calculation waste will occur, which is inefficient.

[0004] The present disclosure has been made to solve such problems, and a main object of the present disclosure is to provide a work content identification system, a work content identification method, and a program that can efficiently identify the work content of a worker.

[0005] One method of the present disclosure for achieving the above-mentioned object is a work content determination system for determining the content of work being performed by a worker in a series of work consisting of a plurality of continuous element works, wherein:

[0006] The work content determination system comprises:

[0007] an information acquisition unit that acquires sensor information indicating a state of an operator when the operator performs the element operation;

[0008] A storage unit for storing respectively a determination model for each element operation for determining each element operation;

[0009] a work determination unit that determines the element work being performed by the operator by comparing the sensor information of the operator acquired by the information acquisition unit with the determination model of each element work stored by the storage unit; and

[0010] The priority setting unit sets the priority of the determination model of each of the element operations when the operation specifying unit performs the comparison.

[0011] In this one method, the job determination unit may compare the judgment model of the element job with the high priority set by the priority setting unit with the sensor information of the operator acquired by the information acquisition unit in sequence, and when the judgment model of the element job is consistent with the sensor information of the operator, the element job of the consistent judgment model is determined as the job content being performed by the operator.

[0012] In this embodiment, in the series of operations, probability values ​​of the element operations to be performed next to the element operations may be pre-set, and the priority setting unit may set the priority of the determination model of the element operation having the high probability value to be high.

[0013] One method of the present disclosure for achieving the above-mentioned object is a method for determining the content of a work being performed by a worker in a series of works consisting of a plurality of continuous element works, wherein:

[0014] The method for determining the operation content comprises:

[0015] A step of acquiring sensor information indicating a state of an operator when the operator performs the element operation;

[0016] A step of storing a determination model for each of the element operations for determining the element operations;

[0017] A step of determining the element operation being performed by the operator by comparing the acquired operator's sensor information with the stored determination model for each element operation; and

[0018] A step of setting priorities of the determination models of the respective element operations when performing the comparison.

[0019] A technical solution of the present disclosure for achieving the above-mentioned purpose is a program for determining the content of the work being performed by an operator in a series of operations consisting of a plurality of continuous element operations, wherein:

[0020] The program causes the computer to execute:

[0021] A process of acquiring sensor information indicating a state of an operator when the operator performs the element operation;

[0022] A process of comparing the acquired sensor information of the operator with the determination model for determining each of the element operations to determine the element operation being performed by the operator; and

[0023] A process of setting the priority of the determination model for each of the element operations when performing the comparison.

[0024] According to the present disclosure, a main object is to provide a work content identification system, a work content identification method, and a program that can efficiently identify the work content of a worker. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Features, advantages and technical and industrial significance of exemplary embodiments of the present invention will be described below with reference to the accompanying drawings, in which like numerals represent like elements, and in which:

[0026] Figure 1 is a block diagram showing a schematic system configuration of a work content determination system according to the present embodiment;

[0027] Figure 2 This is a flowchart showing the flow of the work content identification method according to the present embodiment. DETAILED DESCRIPTION

[0028] Hereinafter, the present embodiment will be described with reference to the drawings. Figure 1 1 is a block diagram showing a schematic system structure of a work content determination system of the present embodiment. The work content determination system 1 of the present embodiment is a device for determining the work content being performed by an operator in a series of operations consisting of a plurality of continuous element operations. The element operations include, for example, a removal operation such as taking out a component, a tightening operation such as tightening a bolt or a nut, a fitting operation such as fitting a component, and an embedding operation such as embedding a component. The operator is, for example, an operator performing work on a production line.

[0029] For example, if a series of operations in the past n cycles are observed and the series of operations in the n cycles are the same, the series of operations are regarded as standard operations. Furthermore, the operation content identification system 1 can also identify the content of the operation being performed by the operator in the standard operation.

[0030] The work content identification system 1 according to the present embodiment includes an information acquisition unit 2 , a storage unit 3 , a work identification unit 4 , and a priority setting unit 5 .

[0031] In addition, the work content determination system 1 has a hardware structure of a conventional computer including, for example, processors such as a CPU (Central Processing Unit) and a GPU (Graphics Processing Unit), internal memories such as a RAM (Random Access Memory) and a ROM (Read Only Memory), storage devices such as an HDD (Hard Disk Drive) and an SSD (Solid State Drive), input and output I / Fs for connecting to peripheral devices such as a display, and a communication I / F for communicating with devices outside the device.

[0032] The information acquisition unit 2 is a specific example of an information acquisition unit. The information acquisition unit 2 acquires sensor information indicating the state of the operator when the operator performs the element operation. The information acquisition unit 2 acquires, for example: ..., sensor information in the element operation a at time t-1, sensor information in the element operation b at time t, sensor information in the element operation c at time t+1, ...

[0033] The information acquisition unit 2 acquires sensor information from, for example, a sensor 6 attached to the operator directly or indirectly via a wearable device or a sensor 6 attached to the work environment. The information acquisition unit 2 acquires sensor information via wired means such as wiring or wireless means such as Bluetooth (registered trademark) and Wifi (registered trademark).

[0034] The sensor 6 includes, for example, a camera, a microphone, an acceleration sensor, a biosensor, a temperature sensor, a pressure sensor, etc. The sensor information includes, for example, a still image of the operator, a moving image, the operator's voice, and environmental sound.

[0035] The storage unit 3 is a specific example of a storage unit. The storage unit 3 stores the judgment model of each element operation for determining each element operation. The judgment model is information obtained by modeling the actual sensor information when the operator performs the element operation. The storage unit 3 is composed of the above-mentioned storage device and the like.

[0036] The work identification unit 4 is a specific example of a work identification means and identifies the element work being performed by the worker by comparing the sensor information of the worker acquired by the information acquisition unit 2 with the determination model of each element work stored in the storage unit 3 .

[0037] For example, it is assumed that after the operator has performed the element operation at time t-1, the operator has performed the next element operation at time t. The operation identification unit 4 identifies the element operation at time t. For example, the operation identification unit 4 identifies the element operation that the operator is performing based on the image information of the operator acquired by the information acquisition unit 2 and the image information of the determination model of each element operation stored in the storage unit 3, using pattern matching processing or the like.

[0038] More specifically, the task identification unit 4 calculates the similarity between the image information of the operator acquired by the information acquisition unit 2 and the image information of the determination model of each element task. The task identification unit 4 identifies the element task corresponding to the image information of the determination model whose calculated similarity is greater than a predetermined value as the task content being performed by the operator.

[0039] In addition, for example, assuming that a certain operation is an embedding operation, the sensor information of a certain operation is compared with the judgment model for the extraction operation, the judgment model for the fastening operation, the judgment model for the fitting operation, and the judgment model for the embedding operation in the order of these. In this case, it is known that a certain operation is an embedding operation at the fourth comparison, and the first three comparisons become a waste of calculation. In this way, if the operator's sensor information and the judgment model of each operation are compared in a random order, a waste of calculation occurs, and the efficiency is poor.

[0040] In contrast, in the present embodiment, the priority setting unit 5 sets the priority of the determination model of each element operation when the operation determination unit 4 performs the above comparison. Thus, for example, by setting the priority of the determination model of each element operation in a manner that suppresses waste of the above calculation, waste of the above calculation can be suppressed, and the operation content of the operator can be determined efficiently.

[0041] The priority setting unit 5 is a specific example of a priority setting means. The work determination unit 4 compares the judgment model of the element work with the sensor information of the operator acquired by the information acquisition unit 2 in order from the judgment model of the element work with the high priority set by the priority setting unit 5. Then, when the judgment model of the compared element work is consistent with the sensor information of the operator, the work determination unit 4 determines the element work of the consistent judgment model as the work content being performed by the operator.

[0042] For example, in a series of operations, the probability values ​​of each element operation performed after each element operation can also be pre-set as probability table information. Specifically, the probability that the operation performed after the removal operation is a fastening operation is 50%, the probability that it is a fitting operation is 25%, the probability that it is an embedding operation is 25%, and the like. In this way, the probability of the next element operation is set for each element operation. The probability of each element operation can also be set based on the accumulated operation data. In addition, by including information such as the process information of the operation and the tools used in the operation in the operation data, the probability of each element operation can be set with higher accuracy.

[0043] The priority setting unit 5 sets the priority of the determination model of the element operation with a high probability value to be high based on the above-mentioned probability table. As a result, the operation determination unit 4 can compare the sensor information of the operator acquired by the information acquisition unit 2 in order from the determination model of the element operation with a high priority set by the priority setting unit 5 and a high probability to be performed next. Therefore, the above-mentioned useless comparison can be suppressed, and the operation content of the operator can be determined efficiently, quickly and accurately.

[0044] In addition, the work determination unit 4 may also compare the sensor information of the operator acquired by the information acquisition unit 2 with the randomly selected judgment model only in the initial judgment, and determine the work content of the operator. Then, when several cycles of work are performed and the work information is accumulated, as described above, the work determination unit 4 compares the judgment model of the element work with the sensor information of the operator acquired by the information acquisition unit 2 in order from the high priority set by the priority setting unit 5 to determine the work content of the operator.

[0045] Next, the work content specifying method according to the present embodiment will be described in detail. Figure 2 This is a flowchart showing the flow of the work content identification method according to the present embodiment.

[0046] The information acquisition unit 2 acquires sensor information when an operator performs each element operation ( S101 ).

[0047] The storage unit 3 stores the judgment model of each element operation (S102). The priority setting unit 5 sets the priority of the judgment model of each element operation based on the probability table (S103). In addition, the above (S102) and (S103) can also be performed before (S101).

[0048] The work identification unit 4 compares the sensor information of the worker acquired by the information acquisition unit 2 in order from the determination model of the element work with the highest priority set by the priority setting unit 5 ( S104 ).

[0049] When the determination model of the element operation is consistent with the sensor information of the operator (“Yes” in S105), the operation identification unit 4 identifies the element operation of the consistent determination model as the operation content being performed by the operator (S106). On the other hand, when the determination model of the element operation is inconsistent with the sensor information of the operator (“No” in S105), the operation identification unit 4 performs the above-mentioned process (S104).

[0050] As described above, the work content determination system 1 of the present embodiment comprises: an information acquisition unit 2 for acquiring sensor information when the operator performs each element work; a storage unit 3 for storing the determination model of each element work; a work determination unit 4 for determining the element work performed by the operator by comparing the sensor information of the operator acquired by the information acquisition unit 2 with the determination model of each element work stored in the storage unit 3; and a priority setting unit 5 for setting the priority of the determination model of each element work when the work determination unit 4 performs the comparison. Thus, the work content of the operator can be determined efficiently.

[0051] Several embodiments of the present disclosure have been described, but these embodiments are presented as examples and are not intended to limit the scope of the invention. These new embodiments can be implemented in various other ways, and various omissions, substitutions, and changes can be made without departing from the scope of the invention. These embodiments and their variations are included in the scope and purpose of the invention, and are included in the invention described in the claims and their equivalents.

[0052] The present disclosure can also be implemented by, for example, causing a processor to execute a computer program. Figure 2 Processing shown.

[0053] The program can be stored using various types of non-transitory computer readable media and provided to the computer. Non-transitory computer readable media include various types of tangible storage media. Examples of non-transitory computer readable media include magnetic recording media (e.g., floppy disks, magnetic tapes, hard disk drives), magneto-optical recording media (e.g., magneto-optical disks), CD-ROMs (read-only memories), CD-Rs, CD-R / Ws, and semiconductor memories (e.g., mask ROMs, PROMs (programmable ROMs), EPROMs (erasable PROMs), flash ROMs, or RAMs (random access memories)).

[0054] The program can also be provided to the computer through various types of transitory computer readable media. Examples of transitory computer readable media include electric signals, optical signals, and electromagnetic waves. Transitory computer readable media can provide the program to the computer via a wired communication path such as an electric wire and an optical fiber or a wireless communication path.

[0055] Each component constituting the work content identification system 1 according to each of the above-mentioned embodiments may be realized not only by a program but also partially or entirely by dedicated hardware such as an ASIC (Application Specific Integrated Circuit) or an FPGA (Field-Programmable Gate Array).

Claims

1. A system for determining the content of a work being performed by a worker in a series of works consisting of a plurality of continuous element works, wherein: The work content determination system comprises: an information acquisition unit that acquires sensor information indicating a state of an operator when the operator performs the element operation; A storage unit for storing respectively a determination model for each element operation for determining each element operation; a work determination unit that determines the element work being performed by the operator by comparing the sensor information of the operator acquired by the information acquisition unit with the determination model of each element work stored by the storage unit; as well as The priority setting unit sets the priority of the determination model of each of the element operations when the operation specifying unit performs the comparison.

2. The work content determination system according to claim 1, wherein: The job determination unit compares the judgment model of the element job with the high priority set by the priority setting unit with the sensor information of the operator obtained by the information acquisition unit in sequence. When the judgment model of the element job is consistent with the sensor information of the operator, the element job of the consistent judgment model is determined as the job content being performed by the operator.

3. The work content determination system according to claim 2, wherein: In the series of operations, probability values ​​of the respective element operations to be performed following the respective element operations are respectively set in advance, The priority setting unit sets the priority level of the determination model of the element operation having a high probability value to be high.

4. A method for determining the content of a job, for determining the content of a job being performed by a worker in a series of jobs consisting of a plurality of consecutive element jobs, wherein: The method for determining the operation content includes: A step of acquiring sensor information indicating a state of an operator when the operator performs the element operation; A step of storing a determination model for each of the element operations for determining the element operations; A step of determining the element operation being performed by the operator by comparing the acquired operator's sensor information with the stored determination model for each element operation; and A step of setting priorities of the determination models of the respective element operations when performing the comparison.

5. A program for determining the content of a work being performed by an operator in a series of operations consisting of a plurality of consecutive element operations, wherein: The program causes the computer to execute: A process of acquiring sensor information indicating a state of an operator when the operator performs the element operation; A process for determining the element operation being performed by the operator by comparing the obtained sensor information of the operator with the determination model for determining each element operation; as well as A process of setting the priority of the determination model for each of the element operations when performing the comparison.

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