Work determination system, work determination method, and work determination program
The work determination system dynamically adjusts the determination cycle based on standard work time, enhancing efficiency by using longer intervals initially and shorter intervals at task completion, addressing the trade-off between accuracy and efficiency.
Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Patents
- Current Assignee / Owner
- TOYOTA JIDOSHA KK
- Filing Date
- 2023-10-04
- Publication Date
- 2026-07-07
AI Technical Summary
Existing work determination systems face a trade-off between determination accuracy and processing efficiency, where shortening the determination cycle improves accuracy but decreases efficiency, and vice versa.
A work determination system that adjusts the determination cycle based on standard work time, employing longer intervals initially and progressively shortening them as the task progresses, with the shortest cycle at the end, to enhance processing efficiency.
This approach improves the overall efficiency of the work determination process by balancing accuracy and efficiency throughout the task duration.
Smart Images
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Abstract
Description
Technical Field
[0001] The present invention relates to a work determination system, a work determination method, and a work determination program.
Background Art
[0002] Analysis has been made on the posture of a worker. In Patent Document 1, an analysis device is disclosed which has a skeleton extraction unit that acquires skeleton data including feature point data indicating the joint positions of a person shown in image data by image recognition with the image data as input. The analysis device has a storage unit of a posture model in which a posture label is associated with each skeleton data. Further, the analysis device has a posture estimation unit that discriminates the posture of the person shown in the image data from the posture label determined in advance in the posture model based on the skeleton data acquired by the skeleton extraction unit. Furthermore, the analysis device has an output unit that marks and displays the feature point data of the skeleton data acquired by the skeleton extraction unit based on the result of discrimination by the posture estimation unit.
Prior Art Documents
Patent Documents
[0003]
Patent Document 1
Summary of the Invention
Problems to be Solved by the Invention
[0004] In the above analysis device, if the posture determination cycle is shortened, the determination accuracy is improved, but the determination processing efficiency may decrease. Therefore, an object of the present disclosure is to provide a work determination system that changes the determination cycle according to the standard work time and improves the determination processing efficiency.
Means for Solving the Problems
[0005] The work determination system of the present disclosure is a storage unit that stores work and work time in association with each other, A standard work time setting unit sets the standard work time from the aforementioned work time, The system includes a work determination unit that recognizes and determines the work based on the standard work time, The work determination unit includes a period setting unit that sets a determination period for determining the work at a predetermined interval, The aforementioned period setting unit is a work determination system that changes the determination period between a first period and a second period of the standard work time.
[0006] The above configuration provides a work judgment system that improves judgment processing efficiency by changing the judgment cycle according to the standard work time.
[0007] The work determination system in this disclosure is The first period is before the second period. The first period is characterized by being longer than the second period.
[0008] With the above configuration, the judgment cycle can be shortened towards the end of the process compared to the beginning, thereby improving the efficiency of the judgment process.
[0009] The work determination system in this disclosure is After the standard working time has elapsed, the shortest judgment cycle is set.
[0010] With the above configuration, the work judgment cycle for tasks exceeding the standard work time can be shortened, and the efficiency of the judgment process can be improved.
[0011] The method for determining work performed in this disclosure is: Remember the tasks and the time spent on each task. A standard work time is set from the aforementioned work time. A work determination system that recognizes and determines the work based on the standard work time, In the determination described above, a determination period is set to determine the operation at a predetermined interval. In setting the judgment cycle, the judgment cycle is changed between a first period and a second period of the standard work time.
[0012] With the above configuration, a work determination method is provided that changes the determination period according to the standard working time and improves the determination processing efficiency.
[0013] The work determination program of the present disclosure associates and stores a work and the working time, sets a standard working time from the working time, and causes an information processing apparatus to execute a work determination program that recognizes and determines the work based on the standard working time, sets a determination period for determining the work at a predetermined period in the determination, and is a work determination program that changes the determination period between a first period and a second period of the standard working time in setting the determination period.
[0014] With the above configuration, a work determination program is provided that changes the determination period according to the standard working time and improves the determination processing efficiency.
Effects of the Invention
[0015] According to the present disclosure, a work determination system is provided that changes the determination period according to the standard working time and improves the determination processing efficiency.
Brief Description of the Drawings
[0016] [Figure 1] It is a diagram showing an example of a determination period of work according to an embodiment. [Figure 2] It is a diagram showing an example of the standard working time and the work determination period according to an embodiment. [Figure 3] It is a block diagram showing the configuration of a work determination system according to an embodiment. [Figure 4] It is an exemplary flowchart of a work determination method according to an embodiment.
Modes for Carrying Out the Invention
[0017] Embodiment Embodiments of the present invention will be described below with reference to the drawings. However, the invention claimed is not limited to the following embodiments. Furthermore, not all of the configurations described in the embodiments are necessarily essential for solving the problem. For clarity of explanation, the following descriptions and drawings have been omitted and simplified as appropriate. In each drawing, the same elements are denoted by the same reference numerals, and redundant explanations have been omitted where necessary.
[0018] (Description of the work determination system according to the embodiment) Figure 1 is a diagram showing an example of the work judgment cycle according to the embodiment. Figure 2 is a diagram showing an example of the standard work time and work judgment cycle according to the embodiment. Figure 3 is a block diagram showing the configuration of the work judgment system according to the embodiment. The work judgment system according to the embodiment will be explained with reference to Figures 1 to 3. The work judgment system 300 is a system that determines the work being performed by a person using artificial intelligence (AI) image analysis, etc.
[0019] As shown in Figure 1, the work determination system 300 according to this embodiment makes a determination using △ seconds of data at 〇 seconds intervals, similar to general time series analysis. As shown in Figure 1, the skeletal data of the person performing the work is measured for 0.5 seconds at, for example, every 0.25 seconds for determination. If this 〇 seconds is the determination cycle, the shorter the determination cycle, the better the accuracy of the determination. On the other hand, the shorter the determination cycle, the more calculation time is required.
[0020] Therefore, as shown in Figure 2, the amount of time required for each task is estimated from the data from the first to the third cycle. For example, a standard task is determined by selecting from multiple tasks, such as pre-tightening and final tightening. By linking the work time of the standard task, it can be seen that, for example, pre-tightening requires approximately 4 seconds. This 4 seconds is set as the standard work time.
[0021] Within this standard work time of 4 seconds, the system performs judgments at 1-second intervals from 0 to 3 seconds, and at 0.5-second intervals from 3 to 4 seconds. After 4 seconds, judgments are performed at, for example, 0.25-second intervals. In this way, the work judgment system 300 changes the judgment interval according to the standard work time. In particular, by starting with a long judgment interval and gradually shortening it, the system reduces the initial calculation processing where it is difficult to determine the work, increases the later calculation processing where it is easier to determine the work, and reduces the overall calculation processing.
[0022] In this way, by dynamically changing the judgment cycle based on data on how long the standard operation lasts, the efficiency of the judgment process can be improved.
[0023] As shown in Figure 3, the work determination system 300 comprises a storage unit 301, a standard work time setting unit 302, and a work determination unit 303. The work determination unit 303 includes a period setting unit 304.
[0024] The memory unit 301 stores tasks and their associated time. A task can be anything determined based on information from images or wearable sensors. For example, it could be a series of tasks, such as removing, installing, loosely tightening screws, and tightening screws, which are breakdowns of a series of advanced tasks performed in a factory for installing parts. These tasks are also referred to as unit tasks in this specification. A unit task is a breakdown of an advanced task and may be included within other advanced tasks.
[0025] The work time associated with a unit task may be used as a reference for the work time of other unit tasks in more complex work. For example, the work time for temporarily tightening screws on a car bumper may be used as a reference for the work time for temporarily tightening screws on a car door.
[0026] The standard work time setting unit 302 sets the standard work time based on the work time. The work time for a unit task can be averaged by acquiring multiple data points. For example, this average time can be set as the standard work time. Alternatively, the standard work time may be set to a time slightly longer than the average time. In other words, the standard work time is set as the time required to complete a unit task.
[0027] The work determination unit 303 recognizes and determines a work based on the standard work time. The work determination unit 303 recognizes and determines a work during or beyond the standard work time. Work recognition is performed, for example, by inputting an image of the worker performing the work or sensor information from a wearable sensor attached to the worker into a learning device that has been trained using machine learning, which is an artificial intelligence (AI). The learning device outputs the determination result of the recognized work. For example, the determination result is the name of the unit work, such as temporarily tightening a screw.
[0028] The period setting unit 304 sets a judgment period for determining work at a predetermined interval. The predetermined period is set based on the standard work time, such as 1 second or 0.5 seconds. For example, the judgment period may be set to 1 / 2, 1 / 4, or 1 / 8 of the standard work time.
[0029] The period setting unit 304 then changes the judgment period between the first and second periods of the standard work time. In this way, a work judgment system is provided that changes the judgment period according to the standard work time and improves the efficiency of the judgment processing.
[0030] The first and second periods are not in a sequential order. Here, it is preferable that the first period precedes the second period, and that the first period is longer than the second period. By doing so, the judgment cycle can be shortened towards the end of the process rather than at the beginning, thereby improving the efficiency of the judgment process.
[0031] Furthermore, work may not be completed within the standard working time. In such cases, it is preferable to set the shortest possible judgment cycle after the standard working time has elapsed. By doing so, the work judgment cycle for work exceeding the standard working time can be shortened, improving the efficiency of the judgment process.
[0032] (Description of the work determination method according to the embodiment) Figure 4 is an illustrative flowchart of the work determination method according to the embodiment. The work determination method according to the embodiment will be explained with reference to Figure 4.
[0033] As shown in Figure 4, first, a unit task is defined from the past few cycles (step S401). Next, data necessary for task determination is collected (step S402). Next, it is decided to determine the task with a determination period of x [sec] (step S403). This x seconds is set as the standard determination period. Next, task determination is performed with a determination period of 4 × x [sec] until half the time required for the determined task has passed (step S404). Task determination is performed at four times the standard determination period until half the standard task time has passed. Next, task determination is performed with a determination period of 2 × x [sec] until three-quarters of the time required for the determined task has passed (step S405). Task determination is performed at twice the standard determination period from half to three-quarters of the standard task time. Finally, after three-quarters of the time has passed, it is set to the standard determination period (step S406). After three-quarters of the standard task time has passed, task determination is performed with the standard determination period of x [sec].
[0034] Thus, a work determination method is provided that improves the efficiency of the determination process by changing the determination cycle according to the standard work time.
[0035] Furthermore, the above-described work determination method can be implemented by an information processing device. The information processing device comprises a processor such as a CPU (Central Processing Unit) that executes a program for performing the processing, and a memory that stores the program. Therefore, a work determination program that performs the above-described work determination method is also provided.
[0036] Furthermore, some or all of the processing in the information processing device 100 described above can be implemented as a computer program. Such a program can be stored using various types of non-temporary computer-readable media and supplied to a computer. Non-temporary computer-readable media include various types of tangible recording media. Examples of non-temporary computer-readable media include magnetic recording media (e.g., flexible disks, magnetic tapes, hard disk drives), magneto-optical recording media (e.g., magneto-optical disks), CD-ROMs (Read Only Memory), CD-Rs, CD-R / Ws, and semiconductor memories (e.g., mask ROMs, PROMs (Programmable ROMs), EPROMs (Erasable PROMs), flash ROMs, and RAMs (Random Access Memory)). Programs may also be supplied to a computer using various types of temporary computer-readable media. Examples of temporary computer-readable media include electrical signals, optical signals, and electromagnetic waves. Temporary computer-readable media can be supplied to a computer via wired communication channels such as electric wires and optical fibers, or via wireless communication channels.
[0037] It should be noted that the present invention is not limited to the embodiments described above, and can be modified as appropriate without departing from the spirit of the invention. [Explanation of Symbols]
[0038] 300 Work determination system, 301 Storage unit, 302 Standard work time setting unit, 303 Work determination unit, 304 Cycle setting unit
Claims
1. A memory unit that stores and links tasks and their durations, A standard work time setting unit sets a standard work time by averaging the aforementioned work times, The system includes a work determination unit that recognizes and determines the work based on the standard work time, The work determination unit includes a period setting unit that sets a determination period for determining the work at a predetermined interval, The aforementioned period setting unit is a work determination system that changes the determination period between a first period and a second period of the standard work time, The first period is before the second period. The first period is longer than the second period. After the standard work time has elapsed, the work determination unit sets the shortest period as the determination period, in this work determination system.
2. Remember the tasks and the time spent on each task. A standard work time is set by averaging the aforementioned work times. A work determination system that recognizes and determines the work based on the standard work time, In the determination described above, a determination period is set to determine the operation at a predetermined interval. In setting the judgment cycle, the judgment cycle is changed between a first period and a second period of the standard work time, in a work judgment method, The first period is before the second period. The first period is longer than the second period. A work determination method that, after the standard work time has elapsed, sets the shortest period as the determination period.
3. Remember the tasks and the time spent on each task. A standard work time is set by averaging the aforementioned work times. A work determination program that causes an information processing device to recognize and determine the work based on the standard work time, In the determination described above, a determination period is set to determine the operation at a predetermined interval. In setting the judgment cycle, the work judgment program changes the judgment cycle between a first period and a second period of the standard work time, The first period is before the second period. The first period is longer than the second period. A work determination program that, after the standard work time has elapsed, sets the shortest period as the determination period.