US-12619940-B2 - Work analysis device

US12619940B2US 12619940 B2US12619940 B2US 12619940B2US-12619940-B2

Abstract

A work analysis device is for generating information on works performed by at least one worker in a workplace, and includes: a storage configured to store map information indicating an area associated with each of the works; an acquisition circuitry configured to acquire position information including positions of the at least one worker at each time in the workplace; and a controller configured to: (ii) perform arithmetic processing to discriminate the works at each time based on the position information and the map information; (ii) generate probability information indicating a probability that a work associated with an area including positions of the at least one worker at each time in the map information is performed by the at least one worker based on the position information; and (iii) adjust the probability information according to work tendency information indicating a tendency for the at least one worker to perform the works.

Inventors

Daijiroh Ichimura
Hidehiko Shin
Tomokazu ICHIRIKI

Assignees

PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.

Dates

Publication Date: 20260505
Application Date: 20230918
Priority Date: 20210402

Claims (14)

1 . A work analysis device for generating information on works performed by at least one worker in a workplace, the work analysis device comprising: a storage configured to store map information indicating an area associated with each of the works in the workplace; an acquisition circuitry configured to acquire image data indicating an image of the workplace, the image being captured by a camera; an image recognizer configured to perform image recognition recognizing positions of the at least one worker at each time in the workplace based on the acquired image data to generate position information including the recognized positions; and a controller configured to perform arithmetic processing to discriminate the works of the at least one worker at each time based on the position information and the map information, wherein the controller is further configured to: generate probability information indicating a probability that a work is performed by the at least one worker based on the position information, the work being associated with an area including positions of the at least one worker at each time in the map information, the probability information being generated in association with a recognition result at each time by the image recognition; and adjust the probability information according to work tendency information indicating a tendency for the at least one worker to perform the works in the workplace.
2 . The work analysis device according to claim 1 , wherein when positions of the at least one worker are included in a specific area associated with two or more works in the map information, the controller is configured to adjust the probability information to differentiate probabilities related to the two or more works from each other according to the work tendency information.
3 . The work analysis device according to claim 2 , wherein when positions of the at least one worker are included in the specific area in the map information, the controller is configured to adjust a probability related to a work of each of the at least one worker according to the work tendency information.
4 . The work analysis device according to claim 1 , wherein; the work tendency information includes information indicating a standard work period set to a first work of the works; and the controller is configured to reduce a probability related to the first work when a period for the first work exceeds the standard work period, the period for the first work being a period in which positions of the at least one worker are included in an area associated with the first work.
5 . The work analysis device according to claim 1 , wherein: the work tendency information includes information indicating a maximum number of workers who perform a second work of the works in parallel; and when a number of workers at positions included in an area associated with the second work exceeds the maximum number of workers, the controller is configured to change a probability related to the second work for each of the workers.
6 . The work analysis device according to claim 5 , wherein; the work tendency information includes assignment information in which the area associated with the second work is associated with the workers; and when the positions of the workers are included in the area associated in the assignment information, the controller is configured to adjust a probability related to a work associated with the area associated in the assignment information.
7 . The work analysis device according to claim 5 , wherein: the position information includes information indicating a time when at least two of the workers arrive at the area; and when a number of workers at positions included in the area associated with the second work exceeds the maximum number of workers, the controller is configured to increase probabilities for workers arriving at the area earlier among the at least two workers.
8 . The work analysis device according to claim 1 , wherein: the work tendency information includes information indicating an order in a combination of at least two of the works; and the controller is configured to adjust a probability related to each work in the combination according to the order.
9 . The work analysis device according to claim 1 , wherein based on the probability information for a predetermined period, the controller is configured to generate information indicating a ratio of the works over the predetermined period for each of the at least one worker.
10 . A work analysis method for generating information on works performed by at least one worker in a workplace, the work analysis method being performed by a controller included in a computer, the computer including a storage configured to store map information indicating an area associated with each of the works in the workplace, the work analysis method comprising: acquiring image data indicating an image of the workplace, the image being captured by a camera; performing image recognition recognizing positions of the at least one worker at each time in the workplace based on the acquired image data to generate position information including the recognized positions; generating, based on the position information, probability information indicating a probability that a work is performed by the at least one worker, the work being associated with an area including positions of the at least one worker at each time in the map information, the probability information being generated in association with a recognition result at each time by the image recognition; and adjusting the probability information according to work tendency information indicating a tendency for the at least one worker to perform the works in the workplace.
11 . A non-transitory computer-readable medium having a program stored thereon for causing a controller of a computer to execute the work analysis method according to claim 10 .
12 . A work analysis system comprising: the work analysis device according to claim 1 ; and an information presentation device configured to acquire the probability information from the work analysis device and display the acquired probability information.
13 . The work analysis system according to claim 12 , wherein the information presentation device includes: a communication circuitry configured to perform data communication with the work analysis device; an operation interface configured to receive a user operation inputting designation information indicating at least one of a time in the workplace or the at least one worker; a controller configured to cause the communication circuitry to transmit the designation information to the work analysis device in accordance with the user operation and receive the probability information according to the designation information from the work analysis device; and a display configured to display the probability information according to the designation information.
14 . An information presentation device for acquiring the probability information from the work analysis device according to claim 1 and displaying the acquired probability information, the information presentation device comprising: a communication circuitry configured to perform data communication with the work analysis device; an operation interface configured to receive a user operation inputting designation information indicating at least one of a time in the workplace or the at least one worker; a controller configured to cause the communication circuitry to transmit the designation information to the work analysis device in accordance with the user operation and receive the probability information according to the designation information from the work analysis device; and a display configured to display the probability information according to the designation information.

Description

BACKGROUND Technical Field The present disclosure relates to a work analysis device and a work analysis method. Background Art WO 2019/064398 A discloses an analysis device that analyzes work contents during preparatory work time before the activating of a paper converting machinery. The analysis device of WO 2019/064398 A detects a working position of an operator of the paper converting machinery, and creates an action diagram of the operator based on a detection result. Furthermore, based on operation processing data and operation data of the paper converting machinery, the analysis device of WO 2019/064398 A creates a graph indicating a working time for each item, as a table indicating a work content in the preparation work time for each item, in such a manner that an operation content of the paper converting machinery and the work content of the operator corresponding thereto are separated from each other. In the analysis device of WO 2019/064398 A, an improvement item for improving production efficiency, such as an item whose working time is longer than a normal working time, is selected for a work process in the preparatory work time based on these creation results. SUMMARY The present disclosure provides a work analysis device capable of estimating work performed by one or more workers when the one or more workers perform a plurality of works. A work analysis device according to an aspect of the present disclosure generates information on a plurality of works performed by one or more workers in a workplace. The work analysis device includes a storage, an acquisition circuitry, and a controller. The storage stores map information indicating an area associated with each of the works in the workplace. The acquisition circuitry acquires position information including the positions of the workers at each time in the workplace. The controller performs arithmetic processing to discriminate works of the workers at each time based on the position information and the map information. Based on the position information, the controller generates probability information indicating a probability that a work is performed by the workers, the work being associated with an area including positions of the workers at each time in the map information. The controller adjusts the probability information according to work tendency information indicating a tendency for workers to perform the works in the workplace. These general and specific aspects may be implemented by a system, a method, a computer program, and a combination thereof. According to the work analysis device and the work analysis method of the present disclosure, when one or more workers perform a plurality of works, it is possible to estimate the works performed by the workers. BRIEF DESCRIPTION OF DRAWINGS FIG. 1 is a diagram illustrating an outline of a work analysis system according to a first embodiment; FIG. 2 is a block diagram illustrating a configuration of a work analysis device in the work analysis system; FIG. 3 is a diagram for describing map data in the work analysis device; FIGS. 4A and 4B are diagrams for describing work area information and assignment information in the work analysis device; FIGS. 5A to 5D are diagrams for describing a problem related to the work analysis device; FIG. 6 is a diagram for describing a problem related to the work analysis device; FIG. 7 is a flowchart for describing an overall operation of the work analysis device; FIG. 8 is a flowchart illustrating work discrimination processing; FIGS. 9A to 9C are diagrams for describing the work discrimination processing; FIG. 10 is a flowchart illustrating processing for adjustment for each worker; FIG. 11 is a flowchart illustrating processing for adjustment among workers; FIG. 12 is a diagram illustrating a display example in an information presentation device in a work analysis system according to a second embodiment; FIG. 13 is a block diagram illustrating a configuration of the information presentation device in the work analysis system according to the second embodiment; FIG. 14 is a flowchart for describing an overall operation of a work analysis device according to the second embodiment; and FIG. 15 is a flowchart illustrating an operation of the information presentation device. DETAILED DESCRIPTION In the following, an embodiment will be described in detail with reference to the drawings as appropriate. However, unnecessarily detailed descriptions will be omitted in some cases. For example, detailed descriptions of already well-known matters and repetition of descriptions of substantially the same configuration will be omitted in some cases. This is to prevent the following description from being unnecessary redundant and to facilitate those skilled in the art to understand the present disclosure. Note that the inventors provide the accompanying drawings and the following description in order for those skilled in the art to fully understand the present disclosure, an