JP2020016129A - Part management system and part management method - Google Patents

Abstract

To determine whether parts mounted on a work machine are adaptive articles or non-adaptive articles.SOLUTION: A part management system includes: a part identification data acquisition unit which acquires part identification data that identifies parts that are detected by a reading device and are mounted on a work machine; a machine identification data acquisition unit which acquires machine identification data that is detected by the reading device and identifies the work machine; a read-out position data acquisition unit which acquires read-out position data indicating a position of the read-out device; a machine position data specification unit which specifies machine position data indicating a position of the work machine on the basis of the machine identification data; a part registration data storage unit which stores part registration data indicating registration data related to the parts; a part comparison unit which compares the part identification data with the part registration data; a position comparison unit which compares the read-out position data with the machine position data; and a determination unit which determines whether or not the parts are adaptive states on the basis of a comparison result of the part comparison unit and a comparison result of the position comparison unit.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a component management system and a component management method.

  A work machine having a hydraulic actuator operates based on hydraulic oil supplied from a hydraulic pump. The hydraulic pump sucks the hydraulic oil stored in the hydraulic oil tank and supplies the hydraulic oil to the hydraulic actuator. Hydraulic oil from the hydraulic actuator is returned to the hydraulic oil tank via an oil filter.

JP 2008-025234 A

  In some cases, a counterfeit oil filter is mounted on a work machine. A counterfeit oil filter has a lower foreign matter collection performance than a genuine oil filter. Therefore, the imitation product cannot sufficiently collect foreign substances contained in the hydraulic oil or clogs at an early stage. Hydraulic oil containing foreign matter causes failure of hydraulic equipment such as a hydraulic pump or a hydraulic actuator.

  An object of an aspect of the present invention is to determine whether a component mounted on a work machine is a conforming product or a non-conforming product.

  According to an aspect of the present invention, a component identification data acquisition unit that acquires component identification data that is detected by a reading device and identifies a component mounted on a work machine, and a machine identification that is detected by the reading device and identifies the work machine A machine identification data acquiring unit for acquiring data, a reading position data acquiring unit for acquiring reading position data indicating a position of the reading device, and specifying machine position data indicating a position of the work machine based on the machine identification data. A component registration data storage unit that stores component registration data indicating registration data relating to the component, a component matching unit that matches the component identification data with the component registration data, and a reading position. A position matching unit that matches data with the machine position data, based on a matching result of the component matching unit and a matching result of the position matching unit. The component parts management system is provided comprising, a determination section for determining whether or not a proper state.

  According to the aspect of the present invention, it is possible to determine whether a component mounted on the work machine is a conforming product or a non-conforming product.

FIG. 1 is a diagram schematically illustrating the component management system according to the embodiment. FIG. 2 is a functional block diagram illustrating the component management system according to the embodiment. FIG. 3 is a flowchart illustrating the component management method according to the embodiment. FIG. 4 is a block diagram illustrating the computer system according to the embodiment. FIG. 5 is a diagram schematically illustrating the component management system according to the embodiment.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings, but the present invention is not limited thereto. The components of the embodiments described below can be appropriately combined. In some cases, some components may not be used.

[1] First Embodiment <Parts Management System>
FIG. 1 is a diagram schematically illustrating an example of a component management system 100 of the work machine 1 according to the present embodiment. The component management system 100 includes an in-vehicle control device 200 mounted on the work machine 1, a server 300 provided outside the work machine 1, and an information terminal 400. Each of in-vehicle control device 200, server 300, and information terminal 400 includes a computer system.

  In the present embodiment, the work machine 1 is a hydraulic shovel. The work machine 1 includes a hydraulic pump, a hydraulic actuator that is driven based on hydraulic oil supplied from the hydraulic pump, and a hydraulic oil tank that stores hydraulic oil. The hydraulic pump sucks the hydraulic oil stored in the hydraulic oil tank and supplies the hydraulic oil to the hydraulic actuator. Hydraulic oil from the hydraulic actuator is returned to the hydraulic oil tank via an oil filter.

  The parts management system 100 manages the parts 30 mounted on the work machine 1. The component 30 is a replacement component that is replaced at a specified timing, for example. In the present embodiment, the component 30 is an oil filter. The worker WM performs the replacement work of the component 30.

  The work machine 1 includes a work machine 2, a swing body 3, a traveling body 4 that supports the swing body 3 so as to be able to swing, and a hydraulic cylinder 5 that drives the work machine 2. The traveling body 4 has a crawler belt. The work machine 1 runs as the crawler belt rotates. Work implement 2 is connected to revolving superstructure 3.

  The work machine 2 includes a boom 6 connected to the swing body 3, an arm 7 connected to the boom 6, and a bucket 8 connected to the arm 7. The hydraulic cylinder 5 includes a boom cylinder 10 that drives the boom 6, an arm cylinder 11 that drives the arm 7, and a bucket cylinder 12 that drives the bucket 8. Each of the boom cylinder 10, the arm cylinder 11, and the bucket cylinder 12 is a hydraulic actuator that is driven based on hydraulic oil supplied from a hydraulic pump.

  The work machine 1 has a position sensor 20 that detects the position of the work machine 1. The detection data of the position sensor 20 includes absolute position data indicating the absolute position of the work machine 1. The position sensor 20 detects an absolute position of the work machine 1 using a global navigation satellite system (GNSS). The global navigation satellite system includes a global positioning system (GPS). Position sensor 20 includes a GPS receiver. The global navigation satellite system detects an absolute position of the work machine 1 defined by coordinate data of latitude, longitude, and altitude. The absolute position of the work machine 1 defined in the global coordinate system is detected by the global navigation satellite system. The global coordinate system is a coordinate system fixed to the earth.

  The on-vehicle control device 200 is connected to the position sensor 20. The position sensor 20 outputs the detected position data of the work machine 1 to the in-vehicle control device 200.

  The in-vehicle control device 200 and the server 300 can communicate with each other via the communication network 500. As the communication network 500, at least one of the Internet, a mobile phone communication network, and a satellite communication network is exemplified.

  The in-vehicle control device 200 transmits the position data of the work machine 1 acquired by the position sensor 20 to the server 300. The server 300 acquires the position data of the work machine 1.

  The information terminal 400 is operated by the worker WM. As the information terminal 400, at least one of a personal computer, a tablet computer, and a smartphone is exemplified. The information terminal 400 includes a terminal control device 410, a position sensor 420 that detects the position of the information terminal 400, a reading device 430, and a display device 440. The detection data of the position sensor 420 includes absolute position data indicating the absolute position of the information terminal 400. The position sensor 420 detects an absolute position of the information terminal 400 using a global navigation satellite system (GNSS). The global navigation satellite system includes a global positioning system (GPS). Position sensor 420 includes a GPS receiver. The global navigation satellite system detects the absolute position of the information terminal 400 specified by the latitude, longitude, and altitude coordinate data. The absolute position of the information terminal 400 defined in the global coordinate system is detected by the global navigation satellite system. The global coordinate system is a coordinate system fixed to the earth.

  The reading device 430 detects component identification data IDa for identifying the component 30 and machine identification data IDb for identifying the work machine 1.

  The component identification data IDa is given to the component 30 at a component manufacturing factory that manufactures the component 30, for example. The component identification data IDa includes, for example, a two-dimensional code. The component identification data IDa may include a random number. In the present embodiment, a printed matter on which the two-dimensional code is printed is attached to a part of the component 30. When a plurality of components 30 are manufactured in a component manufacturing factory, component identification data IDa is assigned to each component 30.

  The machine identification data IDb is given to the work machine 1 at a work machine manufacturing factory that manufactures the work machine 1, for example. The machine identification data IDb includes, for example, a two-dimensional code. In the present embodiment, a printed matter on which the two-dimensional code is printed is attached to a part of the cab of the work machine 1 or the outer surface of the revolving unit 3. When a plurality of work machines 1 are manufactured in a work machine manufacturing factory, machine identification data IDb is assigned to each work machine 1.

  The reading device 430 includes at least one of a camera, an IC tag reader, and a two-dimensional code reader. The reading device 430 can identify the component 30 by detecting the component identification data IDa. The reading device 430 can identify the work machine 1 by detecting the machine identification data IDb.

  The worker WM operates the information terminal 400 and detects the component identification data IDa and the machine identification data IDb with the reading device 430 in the replacement work of the component 30. The terminal control device 410 transmits the component identification data IDa and the machine identification data IDb acquired by the reading device 430 to the server 300 together with the position data of the information terminal 400 at the time of reading. The server 300 acquires the position data, the component identification data IDa, and the machine identification data IDb of the information terminal 400.

  The display device 440 displays the display data transmitted from the server 300. As the display device 440, a flat panel display such as a liquid crystal display (LCD: Liquid Crystal Display) or an organic EL display (OELD: Organic Electroluminescence Display) is exemplified.

  FIG. 2 is a functional block diagram illustrating the component management system 100 according to the present embodiment. The component management system 100 includes the work machine 1 having the in-vehicle control device 200 and the position sensor 20, the information terminal 400 having the terminal control device 410, the position sensor 420, the reading device 430, and the display device 440, and the server 300. . The in-vehicle control device 200, the server 300, and the information terminal 400 can wirelessly communicate with each other via the communication network 500. Note that the communication network 500 may perform wired communication with at least a part of the in-vehicle control device 200, the server 300, and the information terminal 400.

  The server 300 is connected to the output device 600. The output device 600 may be a display device that outputs display data, a printing device that outputs a printed matter, or an audio output device that outputs audio. As the display device, a flat panel display such as a liquid crystal display (LCD) or an organic EL display (OELD: Organic Electroluminescence Display) is exemplified.

  The server 300 includes a component identification data acquisition unit 301, a machine identification data acquisition unit 302, a read position data acquisition unit 303, a machine position data acquisition unit 304, a machine position data identification unit 305, and a component registration data storage unit 306. A machine registration data storage unit 307, a terminal registration data storage unit 308, a base location data storage unit 309, a part collation unit 310, a position collation unit 311, a determination unit 312, a transmission request unit 313, It has a request unit 314 and an output unit 315.

  The component identification data acquisition unit 301 acquires the component identification data IDa detected by the reading device 430 of the information terminal 400. The component identification data IDa acquired by the component identification data acquisition unit 301 is stored in the component registration data storage unit 306.

  The machine identification data acquisition unit 302 acquires the machine identification data IDb detected by the reading device 430 of the information terminal 400. The machine identification data IDb acquired by the machine identification data acquisition unit 302 is stored in the machine registration data storage unit 307.

  The reading position data acquisition unit 303 acquires reading position data Pa indicating the position of the reading device 430 detected by the position sensor 420 of the information terminal 400. The information terminal 400 transmits the read position data Pa when the reading device 430 detects the component identification data IDa and the machine identification data IDb to the server 300 together with the component identification data IDa and the machine identification data IDb. The reading position data acquiring unit 303 acquires the reading position data Pa when the component identifying data acquiring unit 301 acquires the component identifying data IDa and the machine identifying data acquiring unit 302 acquires the machine identifying data IDb. The read position data Pa acquired by the read position data acquisition unit 303 is stored in the terminal registration data storage unit 308.

  The machine position data acquisition unit 304 acquires machine position data Pb indicating the position of the work machine 1 detected by the position sensor 20 of the work machine 1. The work machine 1 transmits the machine position data Pb to the server 300 at regular time intervals. The machine position data acquisition unit 304 acquires machine position data Pb from the work machine 1 at regular time intervals. The work machine 1 transmits the machine position data Pb to the server 300, for example, every 24 hours. The machine position data acquisition unit 304 acquires machine position data Pb every 24 hours. The communication cost is reduced by transmitting the machine position data Pb from the work machine 1 to the server 300 at regular time intervals instead of being constantly transmitted. The machine position data Pb acquired by the machine position data acquisition unit 304 is stored in the machine registration data storage unit 307. The machine position data Pb is updated at fixed time intervals (every 24 hours).

  The machine position data specifying unit 305 specifies machine position data Pb indicating the position of the work machine 1 based on the machine identification data IDb acquired by the machine identification data acquisition unit 302. The machine registration data storage unit 307 stores the machine position data Pb of the work machine 1 acquired by the machine position data acquisition unit 304. The machine position data specifying unit 305 converts the plurality of machine position data Pb stored in the machine registration data storage unit 307 to the machine identification data IDb based on the machine identification data IDb acquired by the machine identification data acquisition unit 302. The machine position data Pb of the corresponding work machine 1 is specified.

  The component registration data storage unit 306 stores component registration data IDd indicating registration data of the component 30. The component registration data IDd is the same data as the component identification data IDa. The component registration data IDd is transmitted to the server 300 when shipping from the component manufacturing factory. The component registration data storage unit 306 stores component registration data IDd corresponding to the component identification data IDa.

  The machine registration data storage unit 307 stores machine registration data IDe indicating registration data relating to the work machine 1 at the time of factory shipment. The machine registration data IDe is the same data as the machine identification data IDb. The machine registration data storage unit 307 stores machine registration data IDe corresponding to the machine identification data IDb.

  The terminal registration data storage unit 308 stores terminal registration data IDf indicating registration data of the information terminal 400. The terminal registration data IDf is the same data as the terminal identification data IDc. Terminal registration data storage section 308 stores terminal registration data IDf corresponding to terminal identification data IDc.

  The base position data storage unit 309 stores base position data Pc indicating the position of the specified base. The designated base is a place or facility such as a sales base or a business office of the work machine 1 registered in advance.

  The component collation unit 310 collates the component identification data IDa acquired by the component identification data acquisition unit 301 with the component registration data IDd stored in the component registration data storage unit 306. The part collation unit 310 determines whether or not the part identification data IDa and the part registration data IDd match. When the component identification data acquisition unit 301 acquires the component identification data IDa, the component collation unit 310 collates the component identification data IDa with the component registration data IDd.

  Since the component registration data IDd is stored in the component registration data storage unit 306, when the same component identification data IDa is transmitted from the information terminal 400 to the server 300 a plurality of times, the component matching unit 310 By comparing the transmitted component identification data IDa with the component registration data IDd, it is possible to determine that the component identification data IDa transmitted for the second time or later is the incorrect component identification data IDa.

  The position collation unit 311 collates the read position data Pa acquired by the read position data acquisition unit 303 with the machine position data Pb identified by the machine position data identification unit 305. The position collating unit 311 determines whether or not the read position data Pa matches the machine position data Pb. When the reading position data acquiring unit 303 acquires the reading position data Pa, the position collating unit 311 collates the reading position data Pa with the machine position data Pb.

  The determination unit 312 determines whether or not the component 30 is in an appropriate state based on the comparison result of the component collation unit 310 and the collation result of the position collation unit 311. That the component 30 is in the proper state includes that the component 30 is a conforming product. The fact that the part 30 is compliant includes that the part 30 is genuine. That the component 30 is not in the proper state includes that the component 30 is a non-conforming product. The fact that the component 30 is a non-conforming product includes that the component 30 is a counterfeit product.

  The determination unit 312 determines that the component 30 is in the proper state when the component identification data IDa and the component registration data IDd match, and when the read position data Pa matches the machine position data Pb. When the component identification data IDa and the component registration data IDd do not match, or when the read position data Pa does not match the machine position data Pb, the determination unit 312 determines that the component 30 is not in the proper state.

  In the present embodiment, the agreement between the reading position data Pa and the machine position data Pb includes that the distance between the position of the reading device 430 and the position of the work machine 1 is equal to or less than a predetermined threshold. The fact that the read position data Pa does not match the machine position data Pb includes that the distance between the position of the reading device 430 and the position of the work machine 1 is larger than a predetermined threshold. The predetermined threshold is defined in advance based on, for example, the size of one work site. As an example, the predetermined threshold is set in a range from 0 [m] to 200 [m]. The determination unit 312 determines that the component 30 is in an appropriate state when the distance between the position of the reading device 430 and the position of the work machine 1 is equal to or less than a predetermined threshold based on the reading position data Pa and the machine position data Pb. I do.

  The transmission request unit 313 determines that the read position data Pa acquired by the read position data acquisition unit 303 does not match the machine position data Pb acquired by the machine position data acquisition unit 304 and stored in the machine registration data storage unit 307. And outputs a transmission request command requesting transmission of the machine position data Pb. That is, the transmission request unit 313 transmits the machine position data Pb when the read position data Pa acquired by the read position data acquisition unit 303 and the machine position data Pb identified by the machine position data identification unit 305 do not match. Outputs the requested transmission request command.

  As described above, the position collation unit 311 determines whether or not the read position data Pa acquired by the read position data acquisition unit 303 matches the machine position data Pb identified by the machine position data identification unit 305. . The machine position data specifying unit 305 converts the plurality of machine position data Pb stored in the machine registration data storage unit 307 to the machine identification data IDb based on the machine identification data IDb acquired by the machine identification data acquisition unit 302. The machine position data Pb of the corresponding work machine 1 is specified. The machine position data Pb stored in the machine registration data storage unit 307 is updated every 24 hours. Therefore, for example, when the machine position data Pb stored in the machine registration data storage unit 307 is the machine position data Pb registered 20 hours ago, the machine position data Pb stored in the machine registration data storage unit 307 is There is a possibility that the position of the work machine 1 20 hours ago and the actual position of the work machine 1 at the present time are different.

  The transmission request unit 313 determines that the read position data Pa acquired by the read position data acquisition unit 303 does not match the machine position data Pb acquired by the machine position data acquisition unit 304 and stored in the machine registration data storage unit 307. If determined by the position collating unit 311, it requests the in-vehicle control device 200 of the work machine 1 to transmit the current machine position data Pb.

  The transmission request unit 313 transmits a transmission request command requesting transmission of the current machine position data Pb to the in-vehicle control device 200 via the communication network 500. The in-vehicle control device 200 transmits the current detection data of the position sensor 20 (current machine position data Pb) to the server 300 via the communication network 500 based on the transmission request command from the transmission request unit 313.

  The replacement requesting unit 314 determines that the component 30 is appropriate for the specified time after a specified time has elapsed from the time when the component 30 is mounted on the work machine 1 or the time when the determination unit 312 determines that the component 30 is in the proper state. When the determination unit 312 has never determined that the state is the state, it outputs a replacement request command requesting replacement of the component 30. It is recommended that the new part 30 be replaced after a lapse of a specified time (for example, after a lapse of 1000 hours) from the time of mounting on the work machine 1.

  The output unit 315 causes the output device 600 to output determination data indicating a determination result by the determination unit 312.

<Parts management method>
FIG. 3 is a flowchart illustrating the component management method according to the present embodiment. The work machine 1 transmits the machine position data Pb to the server 300 at regular time intervals (for example, every 24 hours) (step SA1).

  The machine position data acquisition unit 304 acquires machine position data Pb from the work machine 1 at regular time intervals (step SC1).

  The machine registration data storage unit 307 stores the machine position data Pb acquired by the machine position data acquisition unit 304 (Step SC2). In the machine registration data storage unit 307, the machine position data Pb is updated at regular time intervals.

  The replacement request unit 314 determines whether or not the operation time of the work machine 1 has passed a specified time since the last replacement of the component 30 (step SC3).

  The operating time of the work machine 1 may be derived from, for example, detection data of an hour meter of the work machine 1 or may be derived from the accumulated rotation time of the engine.

  At the time of replacement of the component 30, the worker WM detects the component identification data IDa and the machine identification data IDb using the information terminal 400, and transmits them together with the reading position data Pa to the server 300. The replacement request unit 314 determines the time when the component identification data acquisition unit 301, the machine identification data acquisition unit 302, and the reading position data acquisition unit 303 previously acquired the component identification data IDa, the machine identification data IDb, and the reading position data Pa. It is determined whether or not a specified time has elapsed from (time point).

  If it is determined in step SC3 that the specified time has not elapsed since the last replacement of the component 30 (step SC3: No), the process waits until data is transmitted from the information terminal 400.

  If it is determined in step SC3 that the specified time has elapsed since the last replacement of the component 30 (step SC3: Yes), the replacement request unit 314 outputs a replacement request command requesting replacement of the component 30 (step SC4).

  In the present embodiment, the exchange request command is transmitted from the server 300 to the work machine 1. The in-vehicle control device 200 of the work machine 1 acquires the replacement request command (step SA2). The in-vehicle control device 200 outputs a replacement request command to a display device provided in the cab of the work machine 1, for example. Thereby, the worker WM can replace the component 30 by looking at the display device of the work machine 1.

  The exchange request command may be transmitted to the information terminal 400 or may be transmitted to the above-mentioned base.

  When replacing the component 30, the worker WM detects the component identification data IDa of the component 30 to be attached near the work machine 1 to be replaced with the reading device 430 of the information terminal 400. Further, the worker WM detects the machine identification data IDb of the work machine 1 whose component 30 is to be replaced by the reading device 430 of the information terminal 400. The detected component identification data IDa and machine identification data IDb are temporarily stored in the terminal control device 410. The operator WM operates the input device provided on the information terminal 400 to transmit the component identification data IDa, the machine identification data IDb, and the reading position data Pa to the server 300. The information terminal 400 collectively transmits the component identification data IDa, the machine identification data IDb, and the read position data Pa to the server 300 (step SB1).

  The component identification data acquisition unit 301 acquires the component identification data IDa detected by the reading device 430. The machine identification data acquisition unit 302 acquires the machine identification data IDb detected by the reading device 430. The reading position data acquisition unit 303 acquires the reading position data Pa indicating the position of the reading device 430 (Step SC5).

  The machine position data identification unit 305 corresponds to the machine identification data IDb based on the machine identification data IDb acquired by the machine identification data acquisition unit 302 and the machine position data Pb stored in the machine registration data storage unit 307. The machine position data Pb to be specified is specified (step SC6).

  The component collating unit 310 collates the component identification data IDa acquired by the component identification data acquiring unit 301 with the component registration data IDd stored in the component registration data storage unit 306, and compares the component identification data IDa with the component registration data. It is determined whether or not IDd matches (step SC7).

  If it is determined in step SC7 that the component identification data IDa and the component registration data IDd do not match (step SC7: No), the determination unit 312 determines that the component 30 to be replaced is a counterfeit product (step SC8). ).

  When it is determined in step SC7 that the component identification data IDa and the component registration data IDd match (step SC7: Yes), the position collating unit 311 compares the read position data Pa acquired by the read position data By comparing the machine position data Pb specified by the position data specifying unit 305 with the machine position data Pb, it is determined whether the read position data Pa matches the machine position data Pb (step SC9).

  When it is determined in step SC9 that the read position data Pa matches the machine position data Pb (step SC9: Yes), the determination unit 312 determines that the part 30 to be replaced is a genuine product (step SC10). .

  If it is determined in step SC9 that the read position data Pa does not match the machine position data Pb (step SC9: No), the transmission request unit 313 issues a transmission request command requesting transmission of the machine position data Pb to the work machine 1. (Step SC11).

  The in-vehicle control device 200 of the work machine 1 acquires a transmission request command from the server 300 (step SA3).

  The in-vehicle control device 200 transmits the current machine position data Pb to the server 300 based on the transmission request command (step SA4).

  The machine position data acquisition unit 304 acquires the current machine position data Pb from the work machine 1 (step SC12).

  The position collation unit 311 immediately collates the read position data Pa acquired by the read position data acquisition unit 303 with the current machine position data Pb acquired by the machine position data acquisition unit 304, and compares the read position data Pa with the read position data Pa. It is determined whether or not the position coincides with the machine position data Pb (step SC13).

  When it is determined in step SC13 that the read position data Pa matches the machine position data Pb (step SC13: Yes), the determination unit 312 determines that the part 30 to be replaced is a genuine product (step SC10). .

  If it is determined in step SC13 that the read position data Pa does not match the machine position data Pb (step SC13: No), the determination unit 312 determines that the part 30 to be replaced is a counterfeit product (step SC8). ).

[Computer system]
FIG. 4 is a block diagram illustrating an example of the computer system 1000. The above-described in-vehicle control device 200, server 300, and terminal control device 410 include a computer system 1000. The computer system 1000 includes a processor 1001 such as a CPU (Central Processing Unit), a main memory 1002 including a nonvolatile memory such as a ROM (Read Only Memory) and a volatile memory such as a RAM (Random Access Memory), It has a storage 1003 and an interface 1004 including an input / output circuit. The functions of the above-described in-vehicle control device 200, server 300, and terminal control device 410 are stored in the storage 1003 as a program. The processor 1001 reads the program from the storage 1003, expands the program in the main memory 1002, and executes the above-described processing according to the program. Note that the program may be distributed to the computer system 1000 via a network.

[effect]
As described above, according to the present embodiment, the component identification data IDa and the component registration data IDd are collated, and the read position data Pa and the machine position data Pb are collated. Accordingly, the server 300 determines whether the component 30 mounted on the work machine 1 is in the proper state based on the result of the comparison between the component identification data IDa and the component registration data IDd and the result of the comparison between the read position data Pa and the machine position data Pb. Can be determined.

  For example, if the component identification data IDa does not match the component registration data IDd, the server 300 can determine that the component 30 is a counterfeit product. If the read position data Pa and the machine position data Pb do not match, or if the distance between the position of the reading device 430 and the position of the work machine 1 is greater than a predetermined threshold, the server 300 will Can be determined to have transmitted unauthorized component identification data IDa from a remote location. Therefore, it can be determined whether or not the component 30 mounted on the work machine 1 is in an appropriate state.

  If the component identification data IDa matches the component registration data IDd, and if the read position data Pa matches the machine position data Pb, the server 300 determines that the genuine part 30 is It can be determined that it is mounted.

  In the present embodiment, when acquiring the read position data Pa, the server 300 collates the read position data Pa with the machine position data Pb. Thereby, the server 300 can collate the latest read position data Pa with the machine position data Pb.

  Also, since the component registration data IDd is stored in the component registration data storage unit 306, if the same component identification data IDa is transmitted from the information terminal 400 to the server 300 a plurality of times, the server 300 By comparing the identification data IDa with the component registration data IDd, it is possible to determine that the component identification data IDa transmitted from the second time on is the incorrect component identification data IDa.

  Further, since the machine registration data IDe is stored in the machine registration data storage unit 307, it is possible to manage whether or not the component 30 is mounted on the registered regular work machine 1.

  In the present embodiment, when the read position data Pa and the machine position data Pb do not match, the server 300 outputs a transmission request for requesting transmission of the machine position data Pb. In the present embodiment, the machine position data Pb is transmitted from the work machine 1 to the server 300 every 24 hours in order to reduce communication costs. Therefore, even when the actual distance between the position of the reading device 430 and the position of the work machine 1 is equal to or less than the predetermined threshold at the present time when the server 300 acquires the reading position data Pa, it is stored in the machine registration data storage unit 307. The position of the work machine 1 that is present may indicate the position of the work machine 1 20 hours ago, for example. If the position of the work machine 1 20 hours ago and the current position of the work machine 1 are different, even if the actual distance between the position of the reading device 430 and the position of the work machine 1 is less than or equal to the predetermined threshold, the server 300 However, there is a possibility that the reading position data Pa and the machine position data Pb are erroneously determined not to match. In the present embodiment, if the server 300 determines that the read position data Pa acquired by the read position data acquisition unit 303 and the machine position data Pb specified by the machine position data identification unit 305 do not match, the server 300 sets the current position. A transmission request command for requesting transmission of the machine position data Pb is output. Thereby, the server 300 can collate the current reading position data Pa with the current machine position data Pb.

[2] Second Embodiment A second embodiment will be described. In the following description, the same or equivalent components as those of the above-described embodiment are denoted by the same reference numerals, and the description thereof will be simplified or omitted.

  In the above embodiment, the worker WM reads the component identification data IDa attached to the component 30 and the machine identification data IDb attached to the work machine 1 using the information terminal 400 at the work site. .

  Here, it may be difficult to transmit the component identification data IDa, the machine identification data IDb, and the read position data Pa from the work site to the server 300 via the communication network 500 due to a predetermined event. . The predetermined event may be, for example, a case where there is no time to operate the information terminal 400 after the replacement work of the component 30 or a case where the communication state of the work site is poor.

  In the present embodiment, when the information terminal 400 cannot be used at the work site, an example of determining whether or not the component 30 is in an appropriate state by using base position data existing at a position different from the work site explain.

  FIG. 5 is a diagram schematically illustrating the component management system 100 according to the present embodiment. As described in the above embodiment, the server 300 includes the base position data storage unit 309 that stores base position data indicating the position of the specified base.

  An information terminal 700 such as a personal computer is installed at the base. The machine identification data IDb exists at the base. In the present embodiment, the machine identification data IDb is displayed on the display device of the information terminal 700.

  The worker WM uses the reader 430 of the information terminal 400 to detect the component identification data IDa attached to the component 30 and the machine identification data IDb displayed on the display device of the information terminal 700 at the base.

  As in the above-described embodiment, the component identification data IDa and the machine identification data IDb detected by the reading device 430 and the reading position data Pa indicating the position of the reading device 430 are transmitted from the information terminal 700 to the server 300.

  The position collation unit 311 collates the read position data Pa acquired by the read position data acquisition unit 303 with the base position data Pc stored in the base position data storage unit 309.

  The determination unit 312 determines that the component 30 is a genuine product when the component identification data IDa and the component registration data IDd match, and when the read position data Pa matches the base position data Pc. When the component identification data IDa and the component registration data IDd do not match, or when the read position data Pa does not match the base position data Pc, the determination unit 312 determines that the component 30 is a counterfeit product. When the distance between the position of the reading device 430 and the position of the base is equal to or less than a predetermined threshold, the determination unit 312 determines that the component 30 is a genuine product.

  As described above, according to the present embodiment, even if it is difficult for the worker WM to transmit the component identification data IDa and the machine identification data IDb using the information terminal 400 at the work site, By obtaining the machine identification data IDb present at a different position from the above, it is possible to determine whether or not the component 30 is in an appropriate state based on the machine identification data IDb and the base position data Pc.

[3] Other Embodiments In the above embodiment, it is determined whether the component 30 is a genuine product or a counterfeit product. It may be determined whether the component 30 is a conforming product or a non-conforming product. For example, even if the component 30 is a genuine product, the component 30 to be mounted on the work machine 1 of the first model is erroneously mounted on the work machine 1 of the second model, or the used component 30 May be erroneously mounted on the work machine 1. According to the above-described embodiment, by determining whether the component 30 is a conforming product or a non-conforming product, it is possible to suppress the mounting of the incompatible component 30 on the work machine 1.

In the above-described embodiment, the part identification data acquisition unit 301, the machine identification data acquisition unit 302, the read position data acquisition unit 303, the machine position data acquisition unit 304, the machine position data identification unit 305, the part registration data storage unit 306, the machine registration At least one of the data storage unit 307, the terminal registration data storage unit 308, the base location data storage unit 309, the component collation unit 310, the location collation unit 311, the determination unit 312, the transmission request unit 313, the exchange request unit 314, and the output unit 315. One function may be provided in the information terminal 400 or may be provided in the work machine 1.

  For example, the machine position data acquisition unit 304 may be provided in the information terminal 400. The machine position data Pb of the work machine 1 may be transmitted to the information terminal 400 by short-range wireless communication, and the machine position data acquisition unit 304 of the information terminal 400 may acquire the machine position data Pb from the work machine 1. The information terminal 400 collectively stores the machine position data Pb acquired from the work machine 1, the component identification data IDa and the machine identification data IDb detected by the reading device 430, and the read position data Pa via the communication network 500 as a server. 300.

  In the above embodiment, the work machine 1 is a hydraulic shovel. The work machine 1 may be at least one of a bulldozer, a hydraulic shovel, a wheel loader, and a dump truck.

  In the above embodiment, the component 30 is an oil filter. The component 30 may be replaceable, and may be at least one of a fuel filter, an oil hose, and an air cleaner.

  In the above embodiment, the component identification data IDa and the machine identification data IDb include a two-dimensional code. One or both of the component identification data IDa and the machine identification data IDb may include a one-dimensional code, or may include an electronic tag.

  In the above-described embodiment, the fact that the component 30 is not in an appropriate state means that the component 30 is a counterfeit product. The fact that the component 30 is not in the proper state may be a genuine product in which the component 30 should not be mounted on the work machine 1.

  DESCRIPTION OF SYMBOLS 1 ... Work machine, 2 ... Work machine, 3 ... Revolving body, 4 ... Traveling body, 5 ... Hydraulic cylinder, 6 ... Boom, 7 ... Arm, 8 ... Bucket, 10 ... Boom cylinder, 11 ... Arm cylinder, 12 ... Bucket Cylinder, 20 position sensor, 30 parts, 100 parts management system, 200 onboard controller, 300 server, 301 parts identification data acquisition unit, 302 machine identification data acquisition unit, 303 reading position data acquisition unit , 303: Machine position data acquisition unit, 305: Machine position data identification unit, 306: Component registration data storage unit, 307: Machine registration data storage unit, 308: Terminal registration data storage unit, 309: Base position data storage unit, 310 ... A part collation unit, 311 a position collation unit, 312 a determination unit, 313 a transmission request unit, 314 an exchange request unit, 315 an output unit, 400 an information terminal 410 terminal control device, 420 position sensor, 430 reading device, 500 communication network, 600 output device, 700 information terminal, IDa component identification data, IDb machine identification data, IDc terminal identification data, IDd ... part registration data, IDe ... machine registration data, IDf ... terminal registration data, Pa ... read position data, Pb ... machine position data.

Claims (9)

A component identification data acquisition unit that acquires component identification data that is detected by the reading device and identifies a component mounted on the work machine;
A machine identification data acquisition unit that acquires machine identification data that is detected by the reading device and identifies the work machine;
A reading position data acquisition unit that acquires reading position data indicating a position of the reading device;
A machine position data specifying unit that specifies machine position data indicating the position of the work machine based on the machine identification data,
A component registration data storage unit that stores component registration data indicating registration data related to the component,
A part collation unit for collating the part identification data with the part registration data,
A position collation unit for collating the read position data with the machine position data,
A determination unit configured to determine whether the component is in an appropriate state based on a comparison result of the component collation unit and a comparison result of the position collation unit;
Component management system with The determination unit includes:
If the component identification data and the component registration data match, and if the read position data and the machine position data match, determine that the component is in an appropriate state,
If the component identification data does not match the component registration data, or if the read position data does not match the machine position data, it is determined that the component is not in the proper state.
The component management system according to claim 1. The determination unit determines that the component is in an appropriate state when a distance between the position of the reading device and the position of the work machine is equal to or less than a predetermined threshold.
The parts management system according to claim 1. A base position data storage unit that stores base position data indicating the position of the specified base,
The machine identification data is displayed on a display device of an information terminal installed at the base,
At the base, the component identification data and the machine identification data are detected by the reading device,
The position collating unit compares the read position data with the base position data as the machine position data,
The parts management system according to any one of claims 1 to 3. The position collation unit, when the read position data acquisition unit acquires the read position data, collate the read position data and the machine position data,
The parts management system according to any one of claims 1 to 4. A machine position data acquisition unit that acquires the machine position data from the work machine,
When the read position data and the machine position data specified by the machine position data specifying unit do not match, a transmission request unit that requests transmission of the machine position data,
The parts management system according to any one of claims 1 to 5, further comprising: The part is once determined by the determination unit to be in the proper state at the specified time after a lapse of a specified time from the time of mounting on the work machine or from the time of determination that the part is in the proper state by the determination unit. If not, it comprises a replacement request unit for requesting replacement of the part,
The parts management system according to any one of claims 1 to 6. That the part is not in the proper state includes that the part is a non-conforming product,
The parts management system according to any one of claims 1 to 7. Acquiring part identification data that is detected by the reader and identifies a part mounted on the work machine;
Acquiring machine identification data that is detected by the reader and identifies the work machine;
Acquiring reading position data indicating the position of the reading device;
Specifying machine position data indicating the position of the work machine based on the machine identification data;
Collating the component identification data and component registration data indicating registration data relating to the component,
Collating the read position data with the machine position data,
Based on a comparison result between the component identification data and the component registration data, and a comparison result between the read position data and the machine position data, determine whether the component is in an appropriate state,
Parts management method including:

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