WO2017183094A1

WO2017183094A1 - System and method for correlating positioning terminal for positioning mobile entity with mobile entity

Info

Publication number: WO2017183094A1
Application number: PCT/JP2016/062312
Authority: WO
Inventors: 明久石田; 小坂　忠義; 崇治櫻田; 健二上松
Original assignee: 株式会社日立物流
Priority date: 2016-04-19
Filing date: 2016-04-19
Publication date: 2017-10-26
Also published as: JP6638061B2; JPWO2017183094A1

Abstract

A system for specifying a first positioning terminal having measured the position of a mobile entity that implements a work group comprising one or more items of work from a plurality of positioning terminals that individually measure the position of a single mobile entity holds work record information indicating a work position at which each item of work of the work group was implemented and positioning information indicating a measured mobile entity position measured by each of the plurality of positioning terminals in the period between the points in time at which the work group commences and ends, acquires measured positions indicated by the positioning information for each of the plurality of positioning terminals, calculates the number of measured positions among the acquired measured positions that satisfy a prescribed condition including being within a prescribed distance from at least one work position indicated by the work record information, and selects a first positioning terminal from the plurality of positioning terminals on the basis of each of the calculated number of measured positions.

Description

System and method for associating positioning terminal for positioning moving body with moving body

The present invention relates to a system and method for associating a mobile terminal with a positioning terminal for positioning the mobile body.

For example, in a factory, a warehouse, etc., it is important from a viewpoint of progress management, productivity grasp, etc. to manage the work performance and position of the worker who is an example of a mobile object. The work performance data is acquired by WMS (Warehouse Management System) or the like. The work performance data includes an identifier of the worker who performed the work (hereinafter, worker ID).

A positioning terminal carried by an operator receives a predetermined signal (for example, a signal from a GPS (Global Positioning System), Wi-Fi, BLE (Bluetooth Low Energy), or a dedicated entry / exit device) or PDR ( Position data is acquired by autonomously positioning based on acceleration using a technique such as Pedestrian Dead Reckoning. The position data includes an identifier (hereinafter, terminal ID) of the positioning terminal that measured the position.

By combining the work performance data and position data of a certain worker, it becomes possible to perform more detailed progress management and productivity grasp of the worker. Here, in order to combine work result data and position data of a certain worker, it is necessary to associate the worker ID of the worker with the terminal ID of the positioning terminal that has positioned the worker.

There is Japanese Patent No. 5793447 (Patent Document 1) as background art in this technical field. In this gazette, “the collating unit 35 generates entry / exit history information including the user ID of the user who entered / leaved and the entry / exit date / time of the entry / exit for each entry / exit determined to be permitted to enter / exit, In the type specifying unit 36, for each entry / exit permitted by the collating unit 35, based on the terminal ID of the operation terminal 23 on which the user operation was performed at the time of the entry / exit, the history definition information in the history definition information storage unit 34B The work type corresponding to the entry / exit is specified, and in the work record recording unit 45, the user ID and the entry / exit date / time included in the entry / exit history information generated by the collating unit 35 and the work specified by the work type specifying unit 36 are identified. The work performance information is recorded for each user based on the type ”(see summary).

Japanese Patent No. 5793447

In the technique described in Patent Document 1, the user ID and the terminal ID are associated in advance in the collation information, but Patent Document 1 does not specifically describe a method of associating. For example, when manually associating the worker ID with the terminal ID, it is necessary to manually investigate the positioning terminals held by each worker and set the correspondence, which causes problems such as mistakes and labor in the investigation and setting.

In addition, if the worker ID of the worker in the work performance data and the terminal ID that measured the worker in the position data are the same value, the association is not necessary. When the positioning terminal belongs to a different system, the worker ID and the terminal ID cannot always be set to the same value. In view of the above, an object of one embodiment of the present invention is to automatically and accurately associate a mobile body with a positioning terminal.

In order to solve the above problems, one aspect of the present invention employs the following configuration. A system for identifying a first positioning terminal that measures the position of a moving body that implements a work group consisting of one or more tasks, from a plurality of positioning terminals that each measure the position of one moving body, the processor and Each of the plurality of positioning terminals between the work performance information indicating the work position where each work of the work group has been performed and the start time to the end time of the work group. Positioning information indicating the measurement position of the measured mobile object, the processor acquires the measurement position indicated by the positioning information for each of the plurality of positioning terminals, and the work results at the acquired measurement position. The number of measurement positions that satisfy a predetermined condition including being within a predetermined distance from at least one work position indicated by the information is calculated, and the number of measurement positions is calculated based on each of the calculated numbers. There are, selects the first positioning terminal from said plurality of positioning terminal, the system.

One embodiment of the present invention can automatically and accurately associate a mobile body with a positioning terminal.

Issues, configurations, and effects other than those described above will be clarified by the following description of the embodiment.

It is a block diagram which shows the logical structural example of the identifier matching system in Example 1. FIG. FIG. 3 is a block diagram illustrating a hardware configuration example of an identifier association system according to the first embodiment. It is an example of the work performance table in Example 1. 6 is an example of a position stream table in the first embodiment. 4 is an example of a layout table in the first embodiment. It is an example of the position-based work performance table in Example 1. 6 is a flowchart illustrating an example of processing for associating a worker ID and a terminal ID in the first embodiment. It is an example of the work performance table in Example 2. It is an example of the position-based work performance table in Example 2. 10 is a flowchart illustrating an example of neighborhood calculation processing in matching processing according to the second embodiment. 12 is an example of a work performance table in the third embodiment. 12 is an example of a position-based work performance table in the third embodiment. 12 is a flowchart illustrating an example of neighborhood calculation processing in matching processing according to a third embodiment. FIG. 10 is a block diagram illustrating a logical configuration example of an identifier association system according to a fourth embodiment. 14 is an example of a division profile table in the fourth embodiment. 14 is an example of a division position stream table in the fourth embodiment. 14 is a flowchart illustrating an example of stream division processing according to the fourth embodiment. 10 is an example of a display screen in the fourth embodiment. 10 is an example of a display screen in the fourth embodiment. 10 is an example of a display screen in the fourth embodiment. 10 is an example of a position stream table in the fifth embodiment.

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. It should be noted that this embodiment is merely an example for realizing the present invention, and does not limit the technical scope of the present invention. In each figure, the same reference numerals are given to common configurations.

In the present embodiment, an example in which the identifier association system associates a worker in a warehouse with a positioning terminal that measures the position of the worker will be described. The identifier association system is not limited to the worker in the warehouse, and may associate other mobile units with positioning terminals that measure the positions of the mobile units. Further, the identifier association system of the present embodiment associates the worker with the positioning terminal using the work record including the position information of the worker, but moves using the action record including the position information of the moving body. The body and the positioning terminal may be associated with each other.

FIG. 1A is a block diagram illustrating a logical configuration example of an identifier association system. The identifier association system 100 includes, for example, a work record database 101, a position stream database 102, a layout database 103, and a correspondence ID database 105, which are areas for storing data. In addition, the identifier association system 100 includes, for example, a position-based work performance generation unit 111, a matching unit 112, and a display screen generation unit 113, which are functional units that realize a predetermined function. In addition, the identifier association system 100 includes a time source 121.

The work performance database 101 holds work performance information of workers in the warehouse. The position stream database 102 holds the position information of the worker in the warehouse measured by the positioning terminal, that is, positioning information. The layout database 103 holds warehouse layout information.

The location-based work record database 104 holds information in which the work record of the worker in the warehouse is associated with the layout of the warehouse. The correspondence ID database 105 holds the correspondence between the worker ID and the terminal ID of the positioning terminal. In the correspondence stored in the correspondence ID database 105 of this embodiment, the worker ID and the terminal ID correspond one-to-one.

The position-based work record generation unit 111 associates the work record stored in the work record database 101 with the layout stored in the layout database 103 and stores the associated information in the position-based work record database 104. The matching unit 112 associates the worker ID with the terminal ID using the information stored in the work performance database and the information stored in the position stream database 102, and stores information indicating the correspondence in the correspondence ID database 105. Store.

The display screen generation unit 113 generates a display screen in accordance with, for example, an instruction from an administrator of the identifier association system 100 and outputs the display screen to a display device such as a display described later. The display screen shows, for example, the correspondence between the worker ID and the terminal ID at a certain time and the position of the worker at the certain time.

Also, the time source 121 is used, for example, to synchronize the times of the identifier association system 100, the positioning terminal, and the work record recording terminal. The time source 121 operates according to, for example, a program for acquiring time from an NTP server and indicates the acquired time.

FIG. 1B is a block diagram illustrating a hardware configuration example of the identifier association system 100. The identifier association system 100 includes a computer having a processor (CPU) 1, a memory 2, an auxiliary storage device 3, and a communication interface 4.

The processor 1 executes a program stored in the memory 2. The memory 2 includes a ROM that is a nonvolatile storage element and a RAM that is a volatile storage element. The ROM stores an immutable program (for example, BIOS). The RAM is a high-speed and volatile storage element such as a DRAM (Dynamic Random Access Memory), and temporarily stores a program executed by the processor 1 and data used when the program is executed.

The program is executed by the processor 1 to perform a predetermined process using a storage device and a communication port (communication device). Therefore, the description with the program as the subject in the present embodiment may be an explanation with the processor 1 as the subject. Alternatively, the process executed by the program is a process performed by a computer and a computer system on which the program operates.

The processor operates as a functional unit that realizes a predetermined function by operating according to a program. For example, the processor 1 functions as the position-based work record generation unit 111 by operating according to the position-based work record generation program, and functions as the matching unit 112 by operating according to the matching program. The same applies to other programs. Furthermore, the processor 1 also operates as a functional unit that realizes each of a plurality of processes executed by each program. A computer and a computer system are an apparatus and a system including these functional units.

The auxiliary storage device 3 is configured by a large-capacity and non-volatile storage device such as a magnetic storage device (HDD) or a flash memory (SSD), for example, and a program executed by the processor 1 and data used when the program is executed ( For example, each database in FIG. 1 is stored. That is, the program is read from the auxiliary storage device 3, loaded into the memory 2, and executed by the processor 1.

The communication interface 4 is a network interface device that controls communication with other devices (such as the search engine server 120, the user terminal 130, and the key server 140) according to a predetermined protocol.

The identifier association system 100 may have an input interface 5 and an output interface 8. The input interface 5 is an interface to which an input from an operator is received, to which a keyboard 6 and a mouse 7 are connected. The output interface 8 is an interface to which a display 9 and a printer are connected, and outputs the execution result of the program in a format that can be visually recognized by the operator. The identifier association system 100 may further include, for example, an NTP server that becomes the time source 121.

A program executed by the processor 1 is provided to the identifier association system 100 via a removable medium (CD-ROM, flash memory, etc.) or a network, and is stored in the nonvolatile auxiliary storage device 3 which is a non-temporary storage medium. The For this reason, the identifier association system 100 may have an interface for reading data from the removable medium.

The identifier mapping system 100 is a computer system configured on a single computer or a plurality of computers configured logically or physically, and operates in a separate thread on the same computer. Alternatively, it may operate on a virtual machine built on a plurality of physical computer resources.

FIG. 2 is an example of a work record table held in the work record database 101. In the present embodiment, an example in which the information used by the system is in a table format will be described. However, the information used by the system may be expressed in any data structure without depending on the data structure. For example, a data structure appropriately selected from a table, list, database or queue can store the information. Information used by the information storage system is stored in a corresponding data storage area in the data storage device.

The work result table 201 stores work results. The work performance table 201 includes, for example, an instruction ID field 211, a worker ID field 212, a start time field 213, an end time field 214, a work place ID field 215, and a work content field 216.

The instruction ID column 211 stores an ID for identifying a work instruction. The worker ID column 212 stores an ID for identifying a worker who has executed the work group indicated by the corresponding work instruction. The start time column 213 stores the time when the work group indicated by the corresponding work instruction starts. The end time column 214 stores the time when the work group indicated by the corresponding work instruction is finished. The work group includes one or more works.

The work place ID column 215 stores the work place ID at which each work of the work group indicated by the corresponding work instruction is executed. The work content column 216 stores the content of each work in the work group indicated by the corresponding work instruction. Specifically, for example, the work content column 216 stores a character string indicating the work content. Further, for example, the work content column 216 may further store numerical data such as the ID of the sorted article and the number of articles in the sorting work.

The identifier associating system 100 receives, for example, information specifying the work performance from WMS (Warehouse Management System) or the like, and generates a record of the work performance table 201 according to the received information. Note that the identifier associating system 100 uses the time indicated by the time source 121 to adjust the start time and end time of the work included in the information specifying the work results, for example, in generating the record of the work result table 201. After that, it is stored in the start time column 213 and the end time column 214.

In the work result table 201 of the present embodiment, the order in which each work included in each work instruction is performed is not specified. For example, when a worker starts a work instruction including a plurality of work, the work instruction is printed on paper from the WMS and received, and the order in which the worker performs each work is determined, and all of the work groups corresponding to the work instruction are determined. After the work is performed, when the fact that the work group is completed is recorded in the WMS, the work result table 201 having such a format is generated.

FIG. 3 is an example of a position stream table held by the position stream database 102. The position stream table 301 stores position information measured by the positioning terminal. The position stream table 301 includes, for example, a terminal ID column 311, a time column 312, and a position information column 313. The terminal ID column 311 stores a terminal ID for identifying a positioning terminal. The time column 312 stores the time at which positioning was performed.

The location information column 313 stores the location measured by the positioning terminal. The position stored in the position information column 313 may be expressed in an absolute coordinate system such as a set of latitude, longitude, and height from the average sea level, or from a reference point in the building. You may represent by the relative coordinate system which shows a relative positional relationship.

The identifier associating system 100 receives, for example, information specifying the position information measured by the positioning terminal from the positioning terminal, and generates a record of the position stream table 301 according to the received information. Note that the identifier association system 100, in generating the record of the position stream table 301, for example, sets the positioning time included in the information specifying the position information using the time indicated by the time source 121, and then sets the time Stored in the column 312.

FIG. 4 is an example of a layout table 401 held by the layout database 103. The layout table 401 stores layout information in the warehouse. The layout table 401 is preset by, for example, an administrator of the identifier association system 100.

The layout table 401 stores, for example, a work place ID column 411 and a position information column 412. The work place ID column 411 stores a work place ID for identifying a work place in the warehouse. The work place ID in the work performance table 201 and the work place ID in the layout table 401 are the same. The position information column 412 indicates the position of the work place specified by the work place ID. The position stored in the position information column 412 may be expressed in an absolute coordinate system or in a relative coordinate system, similarly to the position stored in the position information column 313.

FIG. 5 is an example of a position-based work performance table held by the position-based work performance database 104. The position-based work performance table 501 includes, for example, an instruction ID field 511, a worker ID field 512, a start time field 513, an end time field 514, a position information field 515, and a work content field 516.

The instruction ID column 511, worker ID column 512, start time column 513, end time column 514, and work content column 516 are described in the instruction ID column 211, worker ID column 212, start time column 213, and end time column 214. , And the description of the work content column 216 is omitted here. Further, the description of the position information column 515 is the same as the description of the position information column 412 and will not be repeated.

Note that the position-based work record generation unit 111 replaces the work place ID field 215 of the work record table 201 with the position information field 412 of the layout table 401 by using the work place ID as a key, thereby changing the position-based work record table 501. create. The position-based work record generation unit 111 generates the position-based work record table 501 periodically or in accordance with an instruction from the administrator, for example.

FIG. 6 is a flowchart showing an example of processing in which the matching unit 112 associates the worker ID with the terminal ID. First, the matching unit 112 reads the position-based work performance table 501 (Step 601).

For example, the matching unit 112 sequentially executes the processes of the following steps 602 to 605 for each record included in the position-based work performance table 501. Hereinafter, an example will be described in which the matching unit 112 executes the processing of steps 602 to 605 with respect to the first record of the position-based work performance table 501.

The matching unit 112 extracts, from the position stream table 301, a record whose value in the time column 312 is after the start time indicated by the first record and before the end time (step 602). Note that when there is no record in the position stream table 301 whose value in the time column 312 is after the start time of the first record and before the end time, the matching unit 112 does not execute the processing after step 603 for the first record.

Next, the matching unit 112 separates the set of records in the position stream table 301 extracted in step 602 for each terminal ID (step 603). Then, the matching unit 112 counts the number of records corresponding to the vicinity of the position included in the position information field 515 of the first record for each record group having the same terminal ID extracted in step 603 of the position stream table 301. Is calculated (step 604).

The vicinity of a certain position indicates a range within a predetermined distance from the coordinates of the position. In addition, the distance in a present Example may be a Euclidean distance, and may be the distance on the said movement route when there is a restriction | limiting in an operator's movement route. The predetermined distance may be different for each work place ID.

A specific example of the processing in step 604 will be described by taking the first record group having the first terminal ID in the position stream table 301 extracted in step 603 as an example. For example, the matching unit 112 compares the position indicated by each record of the first record group with the position indicated by the first record, and the first record group that is near any one of the positions indicated by the first record. Calculate the number of records.

Note that when the position indicated by the records at a plurality of consecutive times in the first record group is near any one of the positions indicated by the first record, the matching unit 112 has only one record for the plurality of records. Is considered to be a record corresponding to the vicinity of the position indicated by the first record. The matching unit 112 can prevent counting the number of work to be duplicated in the position corresponding to the work when there is a long time in the same place by considering in this way, and thus the worker ID and The accuracy of determining the correspondence with the terminal ID can be improved.

Finally, the matching unit 112 selects the record group having the maximum number of neighboring records calculated in step 604, determines that the terminal ID corresponding to the selected record group corresponds to the worker ID, for example, The correspondence between the terminal ID and the worker ID is stored in the correspondence ID database 105 (step 605).

Note that when there are a plurality of record groups having the maximum number of neighboring records calculated in step 604, the matching unit 112 may select one record group at random, for example. Further, in this case, the matching unit 112 executes the processing from step 602 to step 604 on the second record of the position-based work performance table 501 having the same worker ID 212 as that of the first record. A record group having the maximum number of neighboring records calculated in step 604 executed for two records may be selected.

When the correspondence including at least one of the terminal ID and the worker ID included in the correspondence determined in step 605 is already included in the correspondence ID database 105, the matching unit 112 is already included in the correspondence ID database 105, for example. The corresponding correspondence is deleted from the correspondence ID database 105.

As described above, the identifier association system 100 according to the present embodiment compares the position information indicated by the work performance of the worker with the position information measured by the positioning terminal, thereby automatically and highly accurately identifying the worker ID and the terminal. Correspondence with ID can be determined.

This example describes the processing when the order in which the work of the work group included in each work instruction is performed is specified. In this embodiment and other embodiments described later, differences from the first embodiment will be described.

FIG. 7 is an example of the work performance table 201 of this embodiment. The work performance table 201 of the present embodiment further includes, for example, a performance number column 711 that stores a performance number. The result No. indicates the order in which each work of the work group of each work instruction was performed. Therefore, although the time when each work included in each work instruction of the work performance table 201 of the present embodiment is not recorded, the order in which each work was performed is recorded.

For example, when carrying around a portable terminal capable of recording the work contents performed by the worker locally, storing the work record locally in the portable terminal each time working at each work place, and transmitting to the WMS later, etc. The work performance table 201 of this embodiment is created.

FIG. 8 is an example of the position-based work performance table 501 of the present embodiment. The position-based work performance table 501 of this embodiment further includes, for example, a performance number column 811. The description of the record No column 811 is the same as the description of the record No column 711, and will not be repeated.

FIG. 9 is a flowchart showing an example of the neighborhood calculation process in the matching process of this embodiment. The matching unit 112 according to the present exemplary embodiment performs the process illustrated in FIG. 9 instead of step 604 for each record group having the same terminal ID extracted in step 603 of the position stream table 301. Hereinafter, a specific example of the process of FIG. 9 will be described by taking the first record group having the first terminal ID of the position stream table 301 extracted in Step 603 of Example 1 as an example.

First, the matching unit 112 defines a time variable t and initializes t (step 901). The initial value of t is the start time of the first record shown in the description of FIG. The matching unit 112 defines a variable i for reference to the actual number, and initializes i (step 902). Note that the initial value of i is the minimum value of the actual number included in the first record. The matching unit 112 defines a proximity determination variable c, and initializes c (step 903). Note that the initial value of c is 0.

The matching unit 112 acquires the position indicated by the position information corresponding to the same record No as the variable i from the first record (step 904). The matching unit 112 acquires the position indicated by the position information of the record at the time closest to the variable t among the times after the variable t from the first record group (step 905). In addition, when the record of the time after the variable t does not exist in the 1st record group, the matching part 112 transfers to step 908 mentioned later, for example.

The matching unit 112 determines whether or not the position acquired in Step 904 is near the position acquired in Step 905 (Step 906). If the matching unit 112 determines that the position acquired in step 904 is not near the position acquired in step 905 (step 906: No), the matching unit 112 determines whether the variable t is after the end time of the first record. (Step 910).

When the value of the variable t is before the end time of the first record (step 910: No), the matching unit 112 adds a predetermined value to the variable t (step 911), and transitions to step 905. The predetermined value added to the variable t is, for example, a positioning sampling interval at the terminal of the first terminal ID. When the value of the variable t is after the end time of the first record (step 910: Yes), the process proceeds to step 909.

Further, when the matching unit 112 determines that the position acquired in step 904 is not near the position acquired in step 905 (step 906: Yes), 1 is added to the variable c (step 907). The matching unit 112 determines whether or not the value of the variable i is equal to or greater than the maximum value of the record No in the first record (step 908).

When the value of the variable i is less than the maximum value of the actual record No in the first record (step 908: No), the matching unit 112 adds 1 to the variable i (step 912), and transitions to step 904. When the value of the variable i is equal to or greater than the maximum value of the actual record No in the first record (step 908: Yes), the matching unit 112, instead of the number of neighboring records in the first record group calculated in step 604, The value of variable c is returned (step 909).

The identifier association system 100 according to the present embodiment can determine the correspondence between the worker ID and the terminal ID with higher accuracy by further using the order in which the tasks of each task group are executed.

This example describes processing when the time when each work included in each work instruction is specified is specified.

FIG. 10 is an example of the work performance table 201 of this embodiment. The work performance table 201 of this embodiment further includes a time column 1011 and does not include a start time column 213 and an end time column 214. The time column 1011 shows the time when each work included in each work instruction was performed.

For example, when an operator carries a portable terminal capable of network communication and can record a work record to a WMS or the like every time he / she works at each work place, the work performance table 201 of the present embodiment is created.

FIG. 11 is an example of the position-based work performance table 501 of the present embodiment. The position-based work performance table 501 of this embodiment includes a time column 1111 and does not include a start time column 513 and an end time column 514. Since the description of the time column 1111 is the same as the description of the time column 1011, the description is omitted.

FIG. 12 is a flowchart showing an example of the neighborhood calculation process in the matching process of the present embodiment. The matching unit 112 according to the present embodiment performs the process illustrated in FIG. 12 instead of step 604 for each record group having the same terminal ID in the position stream table 301 extracted in step 603. Hereinafter, an example of the process of FIG. 12 for the first record group having the first terminal ID of the position stream table 301 extracted in step 603 of the first embodiment will be described.

First, the matching unit 112 defines and initializes a variable i for specifying the work order included in the first record shown in the description of FIG. 6 of the first embodiment (step 1201). Note that the initial value of the variable i is 1. The matching unit 112 defines and initializes a variable c (step 1202). Note that the variable c is the same as the variable c in the second embodiment.

The matching unit 112 sorts the combinations of the time, position information, and work contents in the first record in ascending order of time, and acquires the time of the i-th work and the position corresponding to the time (step 1203). The matching unit 112 acquires, from the first record group, the position indicated by the position information of the record having the time closest to the variable t acquired in step 1203 among the times after the time acquired in step 1203 (step 1204). . Note that if there is no record at the time after the time acquired in step 1203 in the first record group, the matching unit 112 transitions to step 1207 described below, for example.

The matching unit 112 determines whether or not the position acquired in step 1203 is near the position acquired in step 1204 (step 1205). When the matching unit 112 determines that the position acquired in step 1203 is near the position acquired in step 1204 (step 1205: Yes), the matching unit 112 adds 1 to the variable c (step 1206), and the process proceeds to step 1207 described later. Transition. If the matching unit 112 determines that the position acquired in step 1203 is not in the vicinity of the position acquired in step 1204 (step 1205: No), the process proceeds to step 1207.

The matching unit 112 determines whether or not there is an i + 1th record in the first record (step 1207). If the matching unit 112 determines that the i + 1th record is present in the first record (step 1207: Yes), the matching unit 112 adds 1 to the variable i (step 1209), and the process proceeds to step 1203. When the matching unit 112 determines that the i + 1th record exists in the first record (step 1207: Yes), the matching unit 112 returns the value of the variable c instead of the number of neighboring records in the first record group calculated in step 604. (Step 1208).

The identifier association system 100 according to the present embodiment can determine the correspondence between the worker ID and the terminal ID with higher accuracy by further using the time when each work of each work group is executed.

This embodiment describes an identifier association system 100 that divides position stream data. For example, when the positioning terminal is expensive, a plurality of workers are required to use the positioning terminal at different times.

In the case where different operators use positioning terminals according to time zones, the identifier association system 100 according to the present embodiment, for example, divides a position stream in one terminal ID, thereby dividing one position stream. The correspondence between the ID and one worker ID is determined. The identifier associating system 100 according to the present embodiment divides the position stream based on the feature of the work such that the worker passes a specific place at the start and end of the work.

FIG. 13 is a block diagram illustrating a logical configuration example of the identifier association system 100 according to the present embodiment. The identifier association system 100 further includes, for example, a division position stream database 1301 and a division profile database 1304, which are areas for storing data. The identifier association system 100 further includes, for example, a stream dividing unit 1311 and a divided stream numbering unit 1321 that are functional units that realize a predetermined function.

The division profile database 1304 holds setting values for dividing the position stream. The division position stream database 1301 holds the positioning information obtained by dividing the positioning terminal.

The stream dividing unit 1311 divides the positioning information stored in the position stream database 102. The divided stream numbering unit 1321 assigns an identifier to the positioning information divided by the stream dividing unit 1311 and stores it in the divided position stream database 1301. Also, the correspondence ID database 105 of this embodiment holds the correspondence between the division position stream ID, which is the identifier of the divided position stream, and the worker ID.

FIG. 14 is an example of a division profile table held by the division profile database 1304. The division profile table 1401 includes, for example, a place type column 1411, a position information column 1412, and a threshold value column 1413. The place type column 1411 indicates, for example, the type of place where the worker passes or stays before, during, or during the work, and stores character strings indicating the kinds such as the work start position and the work end position.

The location information column 1412 indicates the location of the location indicated by the value of the corresponding location type column 1411. The position stored in the position information column 1412 may be expressed in an absolute coordinate system or in a relative coordinate system, similarly to the position stored in the position information column 313. The threshold value column 1413 indicates a threshold value of the distance from the location in the process of determining that the location indicated by the value of the corresponding location type column 1411 has passed or stayed.

FIG. 15 is an example of a division position stream table held by the division position stream database 1301. The division position stream table 1501 includes, for example, a division position stream ID column 1511, a terminal ID column 1512, a time column 1513, and a position information column 1514. The division position stream ID column 1511 is an identifier of the position stream divided by the stream division unit 1311. The description of the terminal ID column 1512, the time column 1513, and the position information column 1514 is the same as the description of the terminal ID column 311, the time column 312, and the position information column 313 of the position stream table 301, and will be omitted.

FIG. 16 is a flowchart showing an example of stream division processing. First, the stream division unit 1311 reads a record in which the value of the time column 312 of the position stream table 301 is included in a predetermined period, and separates the read record for each terminal ID (step 601).

The predetermined period may be a short period such as one minute from the latest time in the position stream table 301, or may be a long period such as one day from the latest time. Further, as in stream data processing, the record for the predetermined period may be continuously read for each predetermined period.

The stream segmentation unit 1311 performs the following steps 1602 to 1605 for each record group having the same terminal ID extracted in step 1601 of the position stream table 301. Hereinafter, a specific example of the processing of steps 1602 to 1605 will be described by taking the first record group having the first terminal ID of the position stream table 301 extracted in step 1601 as an example.

Next, the stream division unit 1311 divides the records of the first record group using the values of the division profile table 1401 (step 1602). Specifically, for example, the stream division unit 1311 uses each value in the position information column 1412 of the division profile table 1401 and each value in the threshold value column 1413 to indicate the location indicated by each record in the division profile table 1401. Specifies the area occupied by.

The stream dividing unit 1311 sorts the records in the first record group in ascending order of time. The stream segmentation unit 1311 identifies, from the first record group, a record indicating a position included in any of the identified areas as a segmentation reference record. For example, the stream division unit 1311 deletes each identified division reference record from the first record group, and divides the first record group before and after each of the deleted division reference records. Further, for example, the stream dividing unit 1311 may divide the first record group immediately before or immediately after each specified division reference record without deleting the specified division reference record.

The divided stream numbering unit 1321 assigns an identifier to each record group divided in step 1602, that is, each divided position stream (step 1603). The divided stream numbering unit 1321 stores each divided position stream in the divided position stream database 1301 (step 1604).

The matching unit 112 according to the present embodiment uses the division position stream table 1501 instead of the position stream table 301 and the division position stream ID instead of the terminal ID in the process of FIG. The worker ID is associated, and the correspondence between the division position stream ID and the worker ID is stored in the correspondence ID database 105. Note that the matching unit 112 may store the correspondence between the terminal ID corresponding to the divided stream ID and the worker ID in the correspondence ID database 105.

In addition, in step 605 for the first record, the matching unit 112 of the present embodiment may further include a period from the start time to the end time in the first record in the correspondence between the terminal ID and the worker ID.

Further, in this embodiment, even if the correspondence including at least one of the terminal ID and the worker ID included in the correspondence determined in step 605 is already included in the correspondence ID database 105, the matching unit 112 does not Do not delete the correspondence already included in the. However, the correspondence ID database 105 already includes a correspondence including at least one of the terminal ID or the worker ID included in the correspondence determined in step 605 and having a period at least partially overlapping with the period included in the correspondence. If there is, the matching unit 112 deletes the correspondence already included in the correspondence ID database 105.

In the above example, the division profile table 1401 indicates the position where the position stream is divided, and the stream division unit 1311 divides the position stream at the time corresponding to the position. However, the division profile table 1401 may indicate the time itself for dividing the position stream. For example, when shifts of workers are separated in the form of day shifts and night shifts, and when the time zones of the respective shifts are known, the division profile table 1401 includes, for example, shift times and threshold values of the shifts. Thus, the stream dividing unit 1311 can also divide the position stream based on the time indicated by the division profile table 1401.

Through the above processing, the identifier association system 100 according to the present embodiment automatically handles the correspondence between the worker ID and the terminal ID even when a plurality of workers share a single positioning terminal at different times. Can be determined accurately and accurately.

17A and 17B are examples of display screens that the display screen generation unit 113 outputs to the display 9. The display screen 1701 includes, for example, a time display area 1702 and a position display area 1703. The time display area 1702 displays the time. The position display area 1703 includes information indicating the correspondence between the worker ID performing the work at the time indicated by the time display area 1702 and the terminal ID of the positioning terminal carried by the worker, and the position of the worker at the time. indicate.

The display screen generation unit 113 includes, for example, the time designated by the administrator or the like in the time display area 1702. Further, the display screen generation unit 113 may start generating the display screen 1701 at a predetermined interval, and may include the start time in the time display area 1702.

Also, the display screen generation unit 113 acquires the correspondence between the worker ID and the terminal ID at the time displayed in the time display area 1702 from the correspondence included in the correspondence ID database 105. In addition, the display screen generation unit 113 acquires position information corresponding to the terminal ID included in the acquired correspondence from the position stream table 301 or the divided position stream table 1501.

The display screen generation unit 113 includes information indicating the acquired correspondence and position information in the position display area 1703. The display screen generation unit 113 further acquires the position information of each work place from the layout table 401, and further includes the work place layout information in the position display area 1703 as in the example of FIGS. 17A and 17B. Also good.

In this embodiment, there is a possibility that different workers are using one terminal at different times, such as the terminal with the terminal ID 2 in the examples of FIGS. 17A and 17B.

FIG. 18 is another example of the display screen that the display screen generation unit 113 outputs to the display 9. The display screen 1801 includes, for example, a period display area 1802, a display terminal display area 1803, and a corresponding display area 1804. The period display area displays a period. A display terminal display area 1803 indicates a terminal displayed in the corresponding display area 1804. The correspondence display area 1804 displays the correspondence between the terminal ID of the terminal indicated by the display terminal display area 1803 and the worker ID in the period displayed in the period display area 1802.

The display screen generation unit 113 includes, for example, the period specified by the administrator or the like in the period display area 1802. Further, the display screen generation unit 113 includes, for example, information indicating a terminal designated by an administrator or the like in the display terminal display area 1803. FIG. 18 is an example in which all terminals included in the position stream table 301 are display targets.

The display screen generation unit 113 acquires the correspondence including the time included in the period and the terminal ID of the designated terminal from the correspondence included in the correspondence ID database 105. The display screen generation unit 113 includes information indicating the acquired correspondence in the correspondence display area 1804.

In the present embodiment, there is a possibility that different workers are using one terminal at different times like the terminals of the terminal ID2 and the terminal ID3 in the example of FIG. The administrator can easily confirm the transition of correspondence between the terminal ID and the worker ID by referring to the display screen 1801.

The identifier associating system 100 according to the present embodiment identifies the time when a predetermined event has occurred using information associated with the position stream in the fourth embodiment, and divides the position stream. In the present embodiment, differences from the fourth embodiment will be described. In the present embodiment, similarly to the fourth embodiment, the processing in steps 1602 to 1605 will be described using the first record group having the first terminal ID in the position stream table 301 as an example.

FIG. 19 is an example of the position stream table 301 of the present embodiment. The position stream table 301 further includes, for example, an additional information column 1911 that holds additional information. The additional information indicates, for example, the status of the positioning terminal or the event occurring in the positioning terminal when the positioning terminal transmits the position stream.

The 1st information which shows that the state of a positioning terminal changes from a charge state to a battery operation state, and changes from a battery operation state to a charge state is an example of additional information. For example, if the worker removes the positioning terminal from the charger at the start of work and carries it, and the worker installs the positioning terminal in the charger at the end of work, the switching between the charging state and the battery state of the positioning terminal There is a high possibility that it indicates the change of the person. When the additional information column 1911 holds the first information, in step 1602, the stream dividing unit 1311 detects a change between the charging state and the battery state of the positioning terminal having the first terminal ID as a predetermined event.

Further, the second information indicating whether or not the norm of the acceleration detected by the positioning terminal in a state where the positioning terminal is attached to the worker is a predetermined value or more is an example of additional information. The worker attaches a positioning terminal at the start of work and moves to the work place while accelerating.At the end of work, the worker attaches the positioning terminal and decelerates to the work end place. There is a high possibility that the norm of the will be a predetermined value or more. When the additional information column 1911 holds the second information, the stream dividing unit 1311 detects in step 1602 that the norm of the acceleration of the positioning terminal having the first terminal ID is a predetermined value or more as a predetermined event. The predetermined value may vary depending on the positioning terminal.

In addition, when the positioning terminal includes a button, the third information indicating that the button has been pressed is an example of additional information. When the additional information column 1911 holds the third information, the stream dividing unit 1311 detects that the button is pressed as a predetermined event in Step 1602.

In step 1602, the stream dividing unit 1311 specifies, for example, a record indicating the time when a predetermined event has occurred as a division reference record from the first record group. In step 1602, for example, the stream dividing unit 1311 specifies a record indicating a position included in any of the specified areas and indicating a time when a predetermined event has occurred as a division reference record from the first record group. To do.

As described above, the identifier association system 100 according to the present embodiment further uses the additional information, so that even if a plurality of workers share one positioning terminal at different times, the worker ID and the terminal ID Can be determined with higher accuracy.

In addition, this invention is not limited to the above-mentioned Example, Various modifications are included. For example, the above-described embodiments have been described in detail for easy understanding of the present invention, and are not necessarily limited to those having all the configurations described. Further, a part of the configuration of a certain embodiment can be replaced with the configuration of another embodiment, and the configuration of another embodiment can be added to the configuration of a certain embodiment. Further, it is possible to add, delete, and replace other configurations for a part of the configuration of each embodiment.

In addition, each of the above-described configurations, functions, processing units, processing means, and the like may be realized by hardware by designing a part or all of them with, for example, an integrated circuit. Each of the above-described configurations, functions, and the like may be realized by software by interpreting and executing a program that realizes each function by the processor. Information such as programs, tables, and files that realize each function can be stored in a memory, a hard disk, a recording device such as an SSD (Solid State Drive), or a recording medium such as an IC card, an SD card, or a DVD.

Also, the control lines and information lines indicate what is considered necessary for the explanation, and not all the control lines and information lines on the product are necessarily shown. Actually, it may be considered that almost all the components are connected to each other.

Claims

A system for identifying a first positioning terminal that measures a position of a moving body that implements a work group consisting of one or more tasks, from a plurality of positioning terminals that each measure the position of one moving body,
Including a processor and a storage device;
The storage device
Work result information indicating the work position where each work of the work group was performed,
Between the start time and the end time of the work group, holding the positioning information indicating the measurement position of the moving body measured by each of the plurality of positioning terminals,
The processor is
For each of the plurality of positioning terminals,
Obtaining a measurement position indicated by the positioning information;
In the acquired measurement position, the number of measurement positions that satisfy a predetermined condition including being within a predetermined distance from at least one work position indicated by the work performance information is calculated,
A system that selects the first positioning terminal from the plurality of positioning terminals based on each of the calculated numbers.
The system of claim 1, comprising:
The positioning information indicates a measurement order in which the measurement positions are measured in each of the plurality of positioning terminals,
The processor is
In calculating the number in each of the plurality of positioning terminals,
Among the acquired measurement positions, when a plurality of measurement positions continuous in the measurement order indicated by the positioning information are within the predetermined distance from the same work position indicated by the work performance information, the plurality of measurement positions Of these, the system determines that only one measurement position satisfies the predetermined condition.
The system of claim 1, comprising:
The positioning information indicates a measurement order in which the measurement positions are measured in each of the plurality of positioning terminals,
The work performance information indicates a work order in which each work of the work group is performed,
The processor is
In calculating the number in each of the plurality of positioning terminals,
For each work in the work group, execute the first process in order according to the work order;
In the first process for the first work of the work group,
With reference to the work performance information and the positioning information, it is determined whether or not the acquired measurement position includes a first measurement position within the predetermined distance from the position where the first work is performed,
When it is determined that the acquired measurement position includes the first measurement position, it is determined that the earliest measurement position in the measurement order among the first measurement positions satisfies the predetermined condition;
When it is determined that the acquired measurement position does not include the first measurement position, the first process for the remaining work included in the work group is stopped, and the number is determined to be zero,
In the first process for each of the second and subsequent tasks in the task sequence of the task group,
With reference to the work performance information and the positioning information, in the first process for the work that is within the predetermined distance from the position where the work is performed and that is performed immediately before the work in the work order, the first process Determining whether the acquired measurement position includes a second measurement position that is later in the measurement order than the measurement position determined to satisfy a predetermined condition;
When it is determined that the acquired measurement position includes the second measurement position, it is determined that the earliest measurement position in the work order among the second measurement positions satisfies the predetermined condition;
If it is determined that the acquired measurement position does not include the second measurement position, the first process for the remaining work included in the work group is stopped, and the number is counted up to the second and subsequent first processes. And determining the number of measurement positions satisfying the predetermined condition.
The system of claim 1, comprising:
The positioning information indicates a measurement time at which the measurement position is measured in each of the plurality of positioning terminals,
The work performance information indicates a work time when each work of the work group was performed,
The processor is
In calculating the number in each of the plurality of positioning terminals,
For each work in the work group, the second process is executed in order from the earliest work time,
In the second process for each work of the work group,
With reference to the work performance information and the positioning information, the measurement position having the measurement time closest to the work time at the measurement time after the work time of the work among the acquired measurement positions is the work position of the work. The system which determines with the said measurement position satisfy | filling the said predetermined condition, when it determines with being within the said predetermined distance from a working position.
The system of claim 1, comprising:
The storage device further holds area information indicating one or more predetermined areas,
The positioning information indicates a measurement time at which the measurement position is measured in each of the plurality of positioning terminals,
The processor is
For each of the plurality of terminals
It is determined that the mobile body to be measured by the terminal has been changed at the measurement time corresponding to the position of the terminal indicated by the positioning information included in any one of the one or more predetermined areas,
In the positioning information, the measurement position measured by the terminal is divided into measurement position groups for each moving object,
For each of the measurement position groups, among the measurement positions of the measurement position group, calculate the number of measurement positions that satisfy the predetermined condition,
Based on the number calculated for each of the measurement position groups, the measurement position group of the first positioning terminal corresponding to the mobile that performs the work group is selected from the measurement position groups of the plurality of terminals. system.
The system of claim 1, comprising:
The storage device further holds event information indicating an occurrence time of a predetermined event that has occurred in each of the plurality of terminals,
The positioning information indicates a measurement time at which the measurement position is measured in each of the plurality of positioning terminals,
The processor is
For each of the plurality of terminals
At the time when the event occurs, it is determined that the mobile body that the terminal measures is changed,
In the positioning information, the measurement position measured by the terminal is divided into measurement position groups for each moving object,
For each of the measurement position groups, among the measurement positions of the measurement position group, calculate the number of measurement positions that satisfy the predetermined condition,
Based on the number calculated for each of the measurement position groups, the measurement position group of the first positioning terminal corresponding to the mobile that performs the work group is selected from the measurement position groups of the plurality of terminals. system.
The system according to claim 6, comprising:
The event is a system in which an acceleration of a positioning terminal is a predetermined value or more.
The system according to claim 6, comprising:
The system is a system in which the event is switching between a charging state and a battery operating state in each positioning terminal.
The system according to claim 6, comprising:
The system, wherein the event is execution of a predetermined operation for each positioning terminal.
The system of claim 1, comprising:
A display device,
The said processor outputs the combination of the mobile body which implemented the said work group, and the said 1st positioning terminal to the said display apparatus.
The system of claim 10, comprising:
The positioning information indicates a measurement time at which the measurement position is measured in the first positioning terminal,
The processor is
Accept input of the first time,
From the positioning information, obtain the measurement position of the first positioning terminal at the first time,
A system for further outputting the acquired measurement position to the display device.
A system is a method for identifying a first positioning terminal that measures a position of a moving body that implements a work group consisting of one or more tasks, from a plurality of positioning terminals that each measure the position of one moving body. ,
The system
Work result information indicating the work position where each work of the work group was performed,
Between the start time and the end time of the work group, holding the measurement position information indicating the measurement position of the mobile body measured by each of the plurality of positioning terminals,
The method includes the system comprising:
For each of the plurality of positioning terminals,
Obtaining a measurement position indicated by the measurement position information;
In the acquired measurement position, the number of measurement positions that satisfy a predetermined condition including being within a predetermined distance from at least one work position indicated by the work performance information is calculated,
A method of selecting the first positioning terminal from the plurality of positioning terminals based on each of the calculated numbers.