Work management system, work management method, and program

Abstract

To efficiently acquire information on a work state of a worker at a work site.SOLUTION: A work management system includes a positioning system for measuring the position of a worker existing at a work site, a work detection part for detecting that work is started on the basis of prescribed operation corresponding to a start of the work by the worker, and detecting that the work is completed on the basis of prescribed operation corresponding to the end of the work by the worker, and an information generation part for generating work state information showing a work state for a work period from the start of the work to the end for each worker on the basis of the position of the worker measured by the positioning system and a detection result of the work detection part.SELECTED DRAWING: Figure 8

Description

[Technical field]

[0001] The present invention relates to a work management system, a work management method, and a program. [Background technology]

[0002] There is known technology for a work analysis device that detects work performed by a worker based on image data obtained by a camera (see, for example, Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] International Publication No. 2023 / 276332 Summary of the Invention [Problem to be solved by the invention]

[0004] It is preferable to accurately manage the working conditions of workers at a work site.

[0005] In consideration of the above-mentioned problems, an object of the present invention is to efficiently obtain information regarding the working status of a worker at a work site. [Means for solving the problem]

[0006] One aspect of the present invention that solves the above-mentioned problems is a work management system that includes a positioning system that measures the position of a worker present at a work site, a work detection unit that detects that work has started based on a predetermined operation in response to the worker starting the work, and detects that the work has ended based on a predetermined operation in response to the worker ending the work, and an information generation unit that generates work status information for each worker that indicates the work status during the work period from the start to the end of the work based on the worker's position measured by the positioning system and the detection results of the work detection unit.

[0007] One aspect of the present invention is a work management method in a work management system, the work management method including a positioning step in which a positioning system measures the position of a worker present at a work site; a work detection step in which a work detection unit detects that work has been started based on a predetermined operation in response to the worker starting the work, and detects that the work has been completed based on a predetermined operation in response to the worker completing the work; and an information generation step in which an information generation unit generates work status information for each worker indicating the work status during the work period from the start to the end of the work based on the position of the worker measured by the positioning step and the detection result of the work detection step.

[0008] One aspect of the present invention is a program for causing a computer in a work management system to function as a work detection unit that detects that work has started based on a specified operation in response to the worker starting the work, and detects that the work has ended based on a specified operation in response to the worker ending the work, and an information generation unit that generates work status information for each worker that indicates the work status during the work period from the start to the end of the work, based on the position of the worker measured by a positioning system that measures the position of the worker at the work site and the detection results of the work detection unit. Effect of the Invention

[0009] According to the present invention, it is possible to obtain an effect that information relating to the working status of a worker at a work site can be efficiently obtained. [Brief description of the drawings]

[0010] [Figure 1] 1 is a diagram illustrating an example of the overall configuration of a work management system according to an embodiment of the present invention. [Diagram 2] FIG. 2 is a diagram illustrating an example of a functional configuration of a work management server according to the present embodiment. [Diagram 3] 4 is a diagram showing an example of the structure of worker information in the present embodiment. FIG. [Figure 4] FIG. 4 is a diagram showing an example of work instruction information according to the present embodiment. [Diagram 5] FIG. 4 is a diagram showing an example of work status information in the present embodiment. [Figure 6] FIG. 4 is a diagram showing an example of cart management information in the present embodiment. [Figure 7] 4 is a flowchart showing an example of a procedure followed by a worker in the present embodiment when performing one task. [Figure 8] 10 is a sequence diagram showing an example of a processing procedure executed by the work management system in this embodiment in relation to generating work status information corresponding to one work. FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0011] [Example of overall configuration of work management system] 1 shows an example of the overall configuration of a work management system according to this embodiment. The work management system according to this embodiment is configured to manage work status information indicating the work status of a worker WK at a work site WS. Although the figure shows one worker WK at the work site WS, there may be multiple workers WK at the work site WS.

[0012] The worker WK carries a transmitter 100 compatible with a positioning system used to measure the worker's current position. The transmitter 100 may be in the form of a card, for example. The positioning system of this embodiment may be a system using UWB (Ultra Wide Band). The transmitter 100 may be configured to transmit radio waves for positioning compatible with UWB.

[0013] A cart TR is provided at the work site WS. The cart TR is used by a worker WK to transport materials MT within the work site WS. The dolly TR is provided with a transmitter 200 compatible with the positioning system. The transmitter 200, like the transmitter 100, is compatible with a positioning system using, for example, UWB (Ultra Wide Band), and may be configured to transmit radio waves for positioning compatible with UWB.

[0014] Furthermore, at the work site WS, a work instruction DC is used in response to work management. A work instruction DC may be prepared for each predetermined work unit in a series of work performed at the work site WS. The work instruction DC describes predetermined instructions related to the corresponding work. The worker WK picks up the work instruction DC corresponding to the work he or she is to perform, moves to the work area AR where the corresponding work is to be performed, and performs the work according to the instructions described in the work instruction DC.

[0015] The work instruction DC is affixed with an RFID (Radio Frequency Identification) tag 300. Specifically, the figure shows a state in which the RFID tag 300 is affixed to the paper surface of the work instruction DC by being affixed thereto, but the RFID tag 300 may also be affixed to the work instruction DC by being attached thereto by, for example, a string or a chain. The RFID tag 300 stores information capable of identifying the work instructed by the corresponding work instruction DC. Specifically, the RFID tag 300 may store a work ID that uniquely indicates the work instructed by the corresponding work instruction DC. When a worker WK starts work in a certain work area AR, the corresponding work instruction DC is placed in a document folder FD installed in the work area AR. The document folder FD is provided with a tag reader 700. Therefore, by placing the work instruction DC in the document folder FD, the tag reader 700 of the document folder FD becomes capable of communicating with the RFID tag 300 of the work instruction DC and can read the work ID. The tag reader 700 is communicably connected to the work management server 600 via the gateway 20. The tag reader 700 transmits the read work ID to the work management server 600.

[0016] Further, the work area AR is provided with a work area terminal 800. The work area terminal 800 is configured to input the details of the work performed by the worker WK in the corresponding work area AR, the work performance (results), etc. The work area terminal 800 is communicatively connected to the work management server 600 via the gateway 20. The work area terminal 800 transmits information input by the worker WK (work performance information) to the work management server 600. The work management server 600 may store the received work performance information so as to include it in the work status information of the corresponding worker WK.

[0017] The position management server 500 (an example of a positioning device) is a server that manages the positions of the worker WK and the cart TR at the work site WS. In this embodiment, a positioning system that measures the positions of the worker WK and the cart TR at the work site WS includes the position management server 500, a transmitter 100, a transmitter 200, and a receiver 400.

[0018] The position of the worker WK and the position of the cart TR are measured by such a positioning system as follows. At the work site WS, one receiver 400 is fixedly installed at each of a plurality of predetermined positions. The receivers 400 are connected to a position management server 500 via, for example, a hub 10 (HUB).

[0019] The transmitter 100 carried by the worker WK and the transmitter 200 installed on the cart TR emit pulsed radio waves for positioning. The emitted radio waves are received by multiple receivers 400 present within the range of the multiple radio waves. The receiver 400 that receives the radio waves from the transmitters 100 and 200 measures the time it takes for the radio waves transmitted from the transmitters 100 and 200 to arrive at the coordinates where the receiver 400 is located (signal arrival time), the strength of the received radio waves, etc., and transmits measurement information including the measured signal arrival time and signal arrival angle to the position management server 500. The location management server 500 calculates the locations of the transmitters 100, 200 based on the signal arrival time and signal arrival angle included in each piece of measurement information received from the multiple receivers 400. In this embodiment, each of the locations of the transmitters 100, 200 calculated in this manner is treated as the location measured for the worker WK carrying the transmitter 100 and the location measured for the cart TR on which the transmitter 200 is mounted. Furthermore, in order to associate the position measured by the position management server 500 with the worker WK, the transmitter 100 may transmit a transmitter ID uniquely associated with the worker WK to the receiver 400. Furthermore, in order to associate the position measured by the position management server 500 with the cart TR, the transmitter 100 may transmit a transmitter ID uniquely associated with the cart TR to the receiver 400. The receiver 400 transmits the measurement information including the received transmitter ID to the location management server 500. The location management server 500 can associate the measured location of the transmitter 100 with the transmitter ID. Since the worker WK or the cart TR is uniquely associated with the transmitter ID, it becomes possible to associate the measured location of the transmitter 100 with the worker WK or the cart TR.

[0020] In such a UWB positioning system, it is possible to measure a position with an accuracy of, for example, about several tens of centimeters. Therefore, in this embodiment, it is also possible to grasp the position of the worker WK and the position of the cart TR at the work site WS with a high accuracy of about several tens of centimeters.

[0021] The position management server 500 is connected to a work management server 600 (an example of a work management device) via a network. The position management server 500 transmits worker position information indicating the measured position of each worker WK to the work management server 600. In addition, the position management server 500 transmits cart position information indicating the measured position of each cart TR to the work management server 600. The work management server 600 uses the received worker position information to determine the work status of the worker WK. Also, the work management server 600 uses the received cart position information to manage the cart TR at the work site WS. The work management server 600 may transmit information based on the determination result of the work status and information related to the management of the trolley TR to the work management terminal 900, the work area terminal 800, etc. The work management terminal 900 and the work area terminal 800 output the received information, for example, by display. In this way, the work management server 600 can cause the work management terminal 900 and the work area terminal 800 to present information related to the operating status of the worker WK and information related to the management of the trolley TR. Although not shown in the figures, each worker WK may have a worker terminal. In this case, the work management server 600 transmits information related to the working status of the worker WK and information related to the management of the cart TR to the worker terminal, and causes the worker terminal to display the information.

[0022] [Example of functional configuration of work management server] An example of the functional configuration of the work management server 600 of this embodiment will be described with reference to Fig. 2. The work management server 600 includes, as hardware, a CPU (Central Processing Unit), a ROM (Read Only Memory), a RAM (Random Access Memory), and storage devices such as an HDD (Hard Disk Drive) and an SSD (Solid State Drive). The functions of the work management server 600 shown in the figure are realized by the CPU (Central Processing Unit) included in the hardware of the work management server 600 executing a program.

[0023] The work management server 600 in the figure includes a communication unit 601, a control unit 602, and a storage unit 603.

[0024] The communication unit 601 communicates with the location management server 500, the tag reader 700, the work area terminal 800, and the like via the network.

[0025] The control unit 602 executes various controls in the work management server 600. The control unit 602 includes an work detection unit 621, an information generation unit 622, and an information output unit 623.

[0026] The work detection unit 621 detects the start and end of work in the work area AR for each worker WK.

[0027] The information generating unit 622 generates work status information indicating the work status in the work area AR for each worker WK. The information generating unit 622 stores the generated work status information in the work status information storage unit 633.

[0028] The information output unit 623 transmits the information stored in the storage unit 603 to a terminal such as the work management terminal 900, so that the information is output by displaying it on the terminal.

[0029] The storage unit 603 stores various information corresponding to the work management server 600. The storage unit 603 includes a worker information storage unit 631, a work instruction information storage unit 632, a work status information storage unit 633, a cart management information storage unit 634, and a map storage unit 635.

[0030] The worker information storage unit 631 stores the worker information for each worker WK. 3 shows an example of worker information corresponding to one worker WK. The worker information in the figure includes fields for a worker ID, worker basic information, a transmitter ID, and location history information. The worker ID field stores a worker ID that is an identifier that uniquely identifies the corresponding worker WK. The worker basic information field stores worker basic information including basic information about the corresponding worker WK. The worker basic information may include, for example, the name, department, gender, age, etc. of the corresponding worker WK. The transmitter ID field stores the transmitter ID of the transmitter 100 possessed by the corresponding worker WK. The position history information field stores the position history information of the corresponding worker WK. The position history information indicates the history of the position at each time (time stamp) at the work site WS.

[0031] Returning to Fig. 2, the work instruction information storage unit 632 stores work instruction information corresponding to each type of work to be performed at the work site WS. 4 shows an example of work instruction information corresponding to one work. The work instruction information corresponding to one work includes fields for a work ID, a work area, and a work content. The task ID field stores a task ID that is uniquely assigned to the corresponding task. The work area field stores information indicating the work area AR where the corresponding work should be performed. Specifically, the work area field may store, for example, a work area ID indicating the corresponding work area AR. The work content field stores information indicating the content of the corresponding work. The work instruction information may also include the date and time when the work is planned to be performed (work date and time), the qualifications of the worker who will perform the work, and the like. In this embodiment, a work instruction document DC for each task may be created based on the contents of such work instruction information.

[0032] The work status information storage unit 633 stores work status information for each worker. One piece of work status information indicates a history of the work status for each group of work (unit work) performed by a worker in a work area. Fig. 5 shows an example of work status information corresponding to one worker WK. As shown in the figure, the work status information is associated with a worker ID indicating the corresponding worker WK. Furthermore, the work status information is stored corresponding to each unit task performed by the corresponding worker. The work status information corresponding to one unit task includes fields for the work area, work time, location history information, and work performance information. The work area field stores information indicating the work area AR where the corresponding work was performed. Specifically, the work area field may store a work area ID indicating the work area AR where the corresponding work was performed. The work time field stores the time when the corresponding work was performed. Specifically, the work time includes the time when the corresponding work started (work start time) and the time when the corresponding work ended (work end time). The work start time and work end time may each be indicated by the year, month, and date. The position history information field stores position history information. The position history information indicates the history of the position of the corresponding worker WK at the work site WS. The position history information may be information that associates the position of the work site WS with time. Such position information makes it possible to know at what time and where the corresponding worker WK was at the work site WS. The work performance information field stores the work performance information. The work performance information is information on the results of the corresponding work performed by the worker WK. The work performance information may be based on the information on the work results input to the work area terminal 800 by the worker WK who performed the corresponding work.

[0033] Let us return to the explanation given in FIG. The cart management information storage unit 634 stores cart management information for each cart TR. 6 shows an example of cart management information corresponding to one cart TR. The cart management information in the figure includes fields for a cart ID, location history information, and worker use history information. The field of the cart ID stores the cart ID indicating the corresponding cart TR. The position history information field stores the position history information of the corresponding trolley TR. The position history information indicates the position history of the corresponding trolley TR at the work site WS. The position history information may be information that associates the position of the trolley TR with time. The trolley TR moves within the work site WS by being used by the worker WK to transport materials. The position history information makes it possible to know at what time and where the corresponding trolley TR was located at the work site WS. The worker use history information indicates the history of the worker WK who used the corresponding cart TR. Specifically, the worker use history information may be information in which the worker ID indicating the worker WK who used the corresponding cart TR is associated with the time when the worker WK used the corresponding cart TR.

[0034] Let us return to the explanation given in FIG. The map storage unit 635 stores a map of the work site WS. The map of the work site WS may be two-dimensional or three-dimensional.

[0035] [About the work procedure] An example of a procedure that a worker WK follows to perform one task will be described with reference to the flowchart of FIG.

[0036] Step S100: When the worker WK starts work, he / she picks up the corresponding work instruction DC. The worker WK may pick up the work instruction DC from a predetermined place where it is prepared, or when taking over the corresponding work, he / she may receive the work instruction DC from another worker who was working on the previous task.

[0037] Step S102: The worker WK takes the work instruction DC received in step S100 and secures a cart TR for transporting materials.

[0038] Step S104: The worker WK loads the materials onto the cart TR secured in step S102.

[0039] Step S106: The worker WK pushes the cart TR loaded with the materials and moves to the target work area AR where the corresponding work will be performed. At this time, the worker WK carries the work instruction sheet DC that he received in step S100 with him.

[0040] Step S108: The worker WK arrives at the destination work area AR.

[0041] Step S110: A document folder FD is placed in the work area AR. The worker WK places the work instruction DC received in step S100 into the document folder FD placed in the work area AR where the worker WK arrives.

[0042] Step S112: After inputting the work instruction DC, the worker WK performs the work in the work area AR.

[0043] Step S114: When the worker WK has completed the work that he or she is to perform, the worker WK takes out the work instruction sheet DC from the document folder FD.

[0044] Furthermore, the worker WK may input information (work performance information) relating to the work performance, such as the work progress so far and the quantity of materials used, into the work area terminal 800 as appropriate during or after the work is completed. The work area terminal 800 transmits the input work performance information to the work management server 600. The work performance information may include, for example, a work area ID indicating the corresponding work area AR and the worker ID of the worker WK who input the information into the work area terminal 800. The work management server 600 may store the received work performance information in the work status information storage unit 633 so as to store it in the corresponding work status information.

[0045] Step S116: The worker WK confirms whether or not the completion of the current task has resulted in the completion of, for example, the manufacture of the corresponding part or product.

[0046] Step S118: If the production is not complete, the worker WK may hand over the work instruction sheet DC taken out from the document folder FD in step S114 to another worker who will take over the same work.

[0047] Step S120: When production is completed with this work, the work instruction sheet DC retrieved from the document folder FD in step S114 may be placed in a document folder (completion folder (not shown)) prepared in a designated location corresponding to the completion of production.

[0048] [Example of processing procedure for generating work status information] An example of a process procedure executed by the work management system of this embodiment in relation to the generation of work status information corresponding to one work will be described with reference to a sequence diagram of FIG. Step S200: In the positioning system, the location management server 500 calculates the location of the worker WK using measurement information about the transmitter 100 that is constantly transmitted from the receiver 400, and performs a process of transmitting worker location information indicating the calculated location to the work management server 600.

[0049] Step S202: In the work management server 600, the information generation unit 622 acquires the worker position information for each worker WK transmitted in step S200. The information generation unit 622 may store the acquired worker position information in the position history information in the worker information of the corresponding worker WK stored in the worker information storage unit 631. The processes of transmitting and acquiring the worker position information in steps S200 and S202 may be loop processes that are regularly executed while the work site WS is in operation.

[0050] Step S204: In addition, the location management server 500 performs a process of calculating the location of the trolley TR using measurement information about the transmitter 200 that is constantly transmitted from the receiver 400, and transmitting trolley location information indicating the calculated location to the work management server 600.

[0051] Step S206: In the work management server 600, the information generating unit 622 acquires the cart position information for each cart TR transmitted in step S204. The information generating unit 622 may store the acquired cart position information in the cart management information of the corresponding cart TR among the cart management information stored in the cart management information storage unit 634 so as to store the information in the position history information in the cart management information. The processes of transmitting and acquiring the carriage position information in steps S204 and S206 may be loop processes that are regularly executed while the work site WS is in operation.

[0052] Step S208: As shown as step S110 in FIG. 7, when starting a task, the worker WK inputs a work instruction sheet DC into the document folder FD in the work area AR where the corresponding task is to be performed.

[0053] Step S210: The tag reader 700 provided in the document folder FD into which the work instruction DC was inserted in step S208 is now within the communication range of the RFID tag 300 attached to the inserted work instruction DC, and is able to communicate with the RFID tag 300. The RFID tag 300 starts transmitting the work ID stored in itself to the tag reader 700 that is now able to communicate. In response to receiving the work ID, the tag reader 700 starts transmitting to the work management server 600.

[0054] Step S212: In response to tag reader 700 starting transmission of the work ID in step S210, work management server 600 starts receiving the work ID. Work detection unit 621 of work management server 600 identifies the time corresponding to the timing at which reception of the work ID started as the work start time. Such processing by work detection unit 621 corresponds to detection of the start of work.

[0055] Step S214: The work detection unit 621 also refers to the work instruction information (FIG. 4) associated with the same work ID whose reception has started in response to step S210, and identifies the work area AR (target work area) where the target work whose start has been detected this time will be performed. The work detection unit 621 also refers to the map of the work site WS, and identifies the location range of the target work area. The work detection unit 621 identifies the worker WK associated with the location information indicating a location included within the location range of the target work area, from among the location information currently acquired in step S202, as the target worker who will perform the target work.

[0056] Step S216: Depending on the progress of the work during the work, the target worker may appropriately perform an operation to input the work performance information into the work area terminal 800. The work area terminal 800 accepts the operation of the target worker to input the work performance information.

[0057] Step S218: The work area terminal 800 transmits the work performance information input in step S216 to the work management server 600.

[0058] Step S220: In the work management server 600, the information generating unit 622 acquires the work performance information transmitted in step S218. The process in steps S216 to S220 may be a loop process that is executed each time the target worker appropriately performs an operation to input work performance information.

[0059] Step S222: When the target worker finishes the target work, he / she takes out the work instruction DC input in step S208 from the document folder FD.

[0060] Step S224: As the work instruction DC is removed from the document folder FD, the RFID tag 300 attached to the work instruction DC is now outside the communication range of the tag reader 700 provided in the document folder FD. As a result, the tag reader 700 stops receiving the work ID. In response to the stop of reception of the work ID from the RFID tag 300, the tag reader 700 also stops transmitting the work ID to the work management server 600.

[0061] Step S226: In response to the transmission of the work ID being stopped in step S218, the work management server 600 also stops receiving the work ID. The work detection unit 621 of the work management server 600 identifies the time corresponding to the timing at which the reception of the work ID was stopped as the work end time. Such processing by the work detection unit 621 corresponds to detection that the work has ended.

[0062] Step S228: The information generating unit 622 generates task status information about the target task. The information generating unit 622 may generate the work status information as follows. The information generating unit 622 acquires the work area ID of the work area AR identified as the target work area in step S214. Furthermore, the information generating unit 622 determines the time from the task start time specified in step S212 to the task end time specified in step S226 as the task time. Furthermore, the information generating unit 622 acquires position history information associated with the work time of the current target work from the position history information (FIG. 3) stored in the worker information of the target worker identified in step S214. Furthermore, the information generating unit 622 acquires the work performance information associated with the work area or target worker identified in step S214 from the work performance information acquired in step S220. The information generating unit 622 generates work status information corresponding to the current target work based on the work area ID, work time, position history information, and work performance information acquired as described above. The information generating unit 622 stores the generated work status information in the work status information storage unit 633 in association with the worker ID of the target worker.

[0063] In addition, although not shown in Figure 8, the information generation unit 622 may generate worker usage history information in the cart management information based on worker position information of the worker WK and cart position information of the cart TR obtained when the worker WK is using the cart TR to transport materials. Specifically, the information generating unit 622 acquires the cart position information (target cart position information) of the cart where the position has started to change over time from the cart position information for each cart TR acquired in step S206. The cart TR corresponding to such target cart position information has started to move by the worker WK. The information generation unit 622 identifies the worker WK whose worker ID is associated with worker position information that is close to the position of the trolley TR indicated by the target trolley position information and indicates a position change similar to the position of the trolley TR indicated by the target trolley position information, as the worker using the target trolley TR. The information generation unit 622 may generate information that associates the time from when the trolley TR starts to move until it finishes moving with the worker ID of the identified worker, and store the generated information in the worker usage history information (Figure 6) in the trolley management information of the corresponding trolley TR.

[0064] In this manner, in this embodiment, the work management server 600 acquires location information indicating the location of the worker WK to identify the work area AR in which the worker WK is present, and acquires the start time and end time of work in the work area AR based on the information transmitted from the tag reader 700 of the document folder FD. Based on the information acquired in this manner, the work management server 600 can acquire work status information. In this case, even if the worker WK does not particularly input information required for the work environment information, the work management server 600 can acquire information indicating in which work area the worker WK performed work and when as work status information. In this manner, in this embodiment, information regarding the work status of the worker at the work site can be efficiently acquired.

[0065] [About information output] The information output unit 623 of this embodiment may display information on terminals such as the work management terminal 900 and the work area terminal 800 as follows. For example, the information output unit 623 may display the current position of each worker WK on a map of the work site WS based on the work status information stored in the work status information storage unit 633 and the map stored in the map storage unit 635. In addition, the information output unit 623 may display the current position of each cart TR on a map of the work site WS based on the cart management information stored in the work status information storage unit 633 and the map stored in the map storage unit 635. Furthermore, the information output unit 623 may display the movement trajectories of the worker WK and the cart TR on a map of the work site WS. Furthermore, the information output unit 623 may display which worker WK used the cart TR at what time based on the worker use information in the cart management information. By displaying the information in this manner, for example, the work status of the worker WK can be easily and accurately grasped as a work management. Also, the operating status of each cart TR can be grasped.

[0066] In addition, a program for realizing the functions of the above-mentioned transmitter 100, transmitter 200, receiver 400, location management server 500, work management server 600, work area terminal 800, work management terminal 900, etc. may be recorded on a computer-readable recording medium, and the program recorded on the recording medium may be read into a computer system and executed to perform processing as the above-mentioned transmitter 100, transmitter 200, receiver 400, location management server 500, work management server 600, work area terminal 800, work management terminal 900, etc. Here, "reading a program recorded on a recording medium into a computer system and executing it" includes installing the program into a computer system. The "computer system" here includes hardware such as an OS and peripheral devices. In addition, the "computer system" may include multiple computer devices connected via a network including communication lines such as the Internet, WAN, LAN, and dedicated lines. In addition, the "computer-readable recording medium" refers to portable media such as flexible disks, optical magnetic disks, ROMs, and CD-ROMs, and storage devices such as hard disks built into a computer system. In this way, the recording medium storing the program may be a non-transient recording medium such as a CD-ROM. The recording medium also includes a recording medium provided inside or outside the distribution server that can be accessed in order to distribute the program. The code of the program stored in the recording medium of the distribution server may be different from the code of the program in a format executable by the terminal device. In other words, the format in which the program is stored in the distribution server does not matter as long as it can be downloaded from the distribution server and installed in a format executable by the terminal device. Note that the program may be divided into multiple parts, each of which may be downloaded at a different time and then combined in the terminal device, or each of the divided programs may be distributed by a different distribution server. Furthermore, the term "computer-readable recording medium" includes a memory that holds the program for a certain period of time, such as a volatile memory (RAM) in a computer system that is a server or client when the program is transmitted via a network.The program may be for implementing some of the above-mentioned functions, or may be a so-called differential file (differential program) that can implement the above-mentioned functions in combination with a program already recorded in the computer system.

[0067] <Additional Notes> (1) One aspect of this embodiment is a work management system that includes a positioning system that measures the position of a worker present at a work site, a work detection unit that detects that work has started based on a predetermined operation in response to the worker starting the work and detects that the work has ended based on a predetermined operation in response to the worker ending the work, and an information generation unit that generates work status information for each worker that indicates the work status during a work period from the start to the end of the work based on the position of the worker measured by the positioning system and the detection result of the work detection unit.

[0068] (2) In one aspect of the present invention, the work detection unit described in (1) may detect that work has started when work identification information read from a medium attached to a work instruction is able to be obtained when the work instruction is placed in a specified location, and may detect that work has ended when the work instruction goes from being placed in a specified location to not being placed in the specified location and the read work identification information is unable to be obtained.

[0069] (3) One aspect of the present invention is a work management system as described in (1) or (2), wherein the positioning system is further configured to measure a position of the trolley, and the information generation unit may generate trolley management information including information regarding the measured position of the trolley.

[0070] (4) One aspect of the present invention is a work management system described in any one of (1) to (3), wherein the positioning system may include a transmitter carried by each of the workers and emitting radio waves for positioning using UWB (Ultra Wide Band), a receiver provided at each of a number of predetermined positions at the work site and receiving the radio waves for positioning, and a positioning device that calculates the position of the transmitter based on the radio waves for positioning received by the multiple receivers.

[0071] (5) One aspect of the present invention is a work management method in a work management system, including a positioning step in which a positioning system measures the position of a worker present at a work site; a work detection step in which a work detection unit detects that work has been started based on a predetermined operation in response to the start of the work by the worker and detects that the work has been completed based on a predetermined operation in response to the completion of the work by the worker; and an information generation step in which an information generation unit generates work status information for each worker indicating the work status during the work period from the start to the end of the work based on the position of the worker measured by the positioning step and the detection result of the work detection step.

[0072] (6) One aspect of the present invention is a program for causing a computer in a work management system to function as a work detection unit that detects that work has started based on a specified operation in response to the start of work by a worker, and detects that work has ended based on a specified operation in response to the end of the work by the worker, and an information generation unit that generates work status information for each worker that indicates the work status during the work period from the start to the end of the work, based on the position of the worker measured by a positioning system that measures the position of the worker at the work site and the detection results of the work detection unit. [Explanation of symbols]

[0073] 100,200 transmitters, 300 RFID tags, 400 receivers, 500 location management servers, 600 work management servers, 700 tag readers, 800 work area terminals, 900 work management terminals

Claims

1. A positioning system for measuring the position of a worker present at a work site; a work detection unit that detects that a work has been started based on a predetermined operation corresponding to the start of the work by a worker, and detects that the work has been ended based on a predetermined operation corresponding to the end of the work by the worker; an information generating unit that generates, for each worker, work status information indicating a work status during a work period from the start to the end of the work, based on the position of the worker measured by the positioning system and the detection result of the work detection unit; A work management system comprising:

2. The work detection unit detects that a work has been started by being able to acquire work identification information read from a medium attached to the work instruction in response to the work instruction being placed in a specified position, and When the work instruction sheet changes from being present at a specified location to being absent at the specified location, the work identification information that has been read becomes unavailable, and the end of the work is detected. The work management system according to claim 1 .

3. The positioning system is further adapted to determine a position of the dolly; The information generating unit generates vehicle management information including information related to the measured vehicle position. The work management system according to claim 1 or 2.

4. The positioning system includes: A transmitter carried by each of the workers and emitting radio waves for positioning by UWB (Ultra Wide Band); a receiver provided at each of a plurality of predetermined positions in the work site for receiving the positioning radio waves; a positioning device that calculates the position of the transmitter based on the positioning radio waves received by the multiple receivers. The work management system according to claim 1 or 2.

5. A work management method in a work management system, comprising: A positioning step in which a positioning system measures a position of a worker present at a work site; a work detection step in which the work detection unit detects that a work has been started based on a predetermined operation corresponding to the start of the work by a worker, and detects that the work has been ended based on a predetermined operation corresponding to the end of the work by the worker; an information generating step of generating, for each worker, work status information indicating a work status during a work period from the start to the end of the work, based on the position of the worker measured in the positioning step and the detection result in the work detection step, by an information generating unit; It is a work management method including the following.

6. The computer in the work management system, a work detection unit that detects that a work has been started based on a predetermined operation in response to the start of the work by a worker, and detects that the work has been completed based on a predetermined operation in response to the completion of the work by the worker; an information generating unit that generates, for each worker, work status information indicating a work status during a work period from the start to the end of the work, based on the position of the worker measured by a positioning system that measures the position of the worker present at the work site and the detection result of the work detection unit; A program to function as a

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