WO2023188708A1 - ショベルの管理システム、ショベルの管理方法 - Google Patents

ショベルの管理システム、ショベルの管理方法 Download PDF

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Publication number
WO2023188708A1
WO2023188708A1 PCT/JP2023/001251 JP2023001251W WO2023188708A1 WO 2023188708 A1 WO2023188708 A1 WO 2023188708A1 JP 2023001251 W JP2023001251 W JP 2023001251W WO 2023188708 A1 WO2023188708 A1 WO 2023188708A1
Authority
WO
WIPO (PCT)
Prior art keywords
excavator
information
tag
shovel
component
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP2023/001251
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
和俊 橋本
宏 猪熊
和博 吉田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sumitomo SHI Construction Machinery Co Ltd
Original Assignee
Sumitomo SHI Construction Machinery Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sumitomo SHI Construction Machinery Co Ltd filed Critical Sumitomo SHI Construction Machinery Co Ltd
Priority to JP2024511280A priority Critical patent/JPWO2023188708A1/ja
Priority to CN202380016476.1A priority patent/CN118510965A/zh
Priority to KR1020247022203A priority patent/KR20240165925A/ko
Priority to EP23778747.8A priority patent/EP4502282A4/en
Publication of WO2023188708A1 publication Critical patent/WO2023188708A1/ja
Priority to US18/895,879 priority patent/US20250012055A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/26—Indicating devices
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/26—Indicating devices
    • E02F9/267—Diagnosing or detecting failure of vehicles
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/20—Drives; Control devices
    • E02F9/2025—Particular purposes of control systems not otherwise provided for
    • E02F9/2054—Fleet management
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
    • G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
    • G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
    • G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
    • G06K19/077—Constructional details, e.g. mounting of circuits in the carrier
    • G06K19/07749—Constructional details, e.g. mounting of circuits in the carrier the record carrier being capable of non-contact communication, e.g. constructional details of the antenna of a non-contact smart card
    • G06K19/07758—Constructional details, e.g. mounting of circuits in the carrier the record carrier being capable of non-contact communication, e.g. constructional details of the antenna of a non-contact smart card arrangements for adhering the record carrier to further objects or living beings, functioning as an identification tag
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
    • G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
    • G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
    • G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
    • G06K19/077—Constructional details, e.g. mounting of circuits in the carrier
    • G06K19/07749—Constructional details, e.g. mounting of circuits in the carrier the record carrier being capable of non-contact communication, e.g. constructional details of the antenna of a non-contact smart card
    • G06K19/07773—Antenna details
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q10/00—Administration; Management
    • G06Q10/20—Administration of product repair or maintenance
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C5/00—Registering or indicating the working of vehicles
    • G07C5/008—Registering or indicating the working of vehicles communicating information to a remotely located station
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2200/00—Type of vehicle
    • B60Y2200/40—Special vehicles
    • B60Y2200/41—Construction vehicles, e.g. graders, excavators
    • B60Y2200/412—Excavators
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/20—Drives; Control devices
    • E02F9/22—Hydraulic or pneumatic drives
    • E02F9/2221—Control of flow rate; Load sensing arrangements
    • E02F9/2225—Control of flow rate; Load sensing arrangements using pressure-compensating valves
    • E02F9/2228—Control of flow rate; Load sensing arrangements using pressure-compensating valves including an electronic controller
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/20—Drives; Control devices
    • E02F9/22—Hydraulic or pneumatic drives
    • E02F9/2278—Hydraulic circuits
    • E02F9/2285—Pilot-operated systems
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/20—Drives; Control devices
    • E02F9/22—Hydraulic or pneumatic drives
    • E02F9/2278—Hydraulic circuits
    • E02F9/2292—Systems with two or more pumps
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/20—Drives; Control devices
    • E02F9/22—Hydraulic or pneumatic drives
    • E02F9/2278—Hydraulic circuits
    • E02F9/2296—Systems with a variable displacement pump

Definitions

  • the present invention relates to a shovel management system and a shovel management method.
  • the purpose is to prevent misrecognition of parts.
  • a shovel management system includes a shovel, a tag attached to a part of the shovel, and a management device for the shovel, wherein the shovel has a tag attached to a part of the shovel.
  • the excavator management system includes a writing unit that writes body identification information for identifying the excavator.
  • a shovel management method is a shovel management method using a shovel management system including a shovel, a tag attached to a part of the shovel, and a management device for the shovel, the method comprising: This is an excavator management method in which the excavator writes machine identification information for identifying the excavator in the tag.
  • FIG. 1 is a diagram showing an example of a system configuration of an excavator management system.
  • FIG. 2 is a block diagram showing a configuration example of a drive system of an excavator.
  • FIG. 2 is a sequence diagram illustrating the operation of the management system.
  • FIG. 2 is a first diagram illustrating information stored in a tag.
  • FIG. 3 is a second diagram illustrating information stored in a tag.
  • FIG. 6 is a diagram showing a first display example of maintenance information.
  • FIG. 7 is a diagram showing a second display example of maintenance information.
  • FIG. 1 is a diagram showing an example of the system configuration of an excavator management system.
  • the excavator management system SYS of this embodiment includes an excavator 100, a management device 200 for the excavator 100, and a tag 401 attached to a component 400.
  • the shovel management system SYS will be expressed as a management system SYS.
  • the excavator 100 and the management device 200 are each connected via a network and can communicate with each other.
  • the management device 200 receives operation information from the shovel 100 and manages the state of the shovel 100. Furthermore, the management device 200 of this embodiment is a computer having an arithmetic processing unit (processor) and a storage device. In the management device 200, the storage device may store management information including maintenance information for the shovel 100, for example. Furthermore, the management device 200 realizes various functions by the arithmetic processing device reading and executing programs stored in the storage device. The various functions include, for example, updating management information including maintenance information, displaying maintenance information on a display device, and the like.
  • FIG. 1 shows a case where a part 400 built into the excavator 100 is replaced by a new part 400n by a serviceman P.
  • the parts 400 and 400n are parts manufactured by the manufacturer that manufactures the excavator 100. In other words, the component 400n is a genuine product.
  • tags 401 and 401n storing component identification information for identifying each component are attached to each of the component 400 incorporated in the excavator 100 and the new component 400n that will be replaced with the component 400 from now on. installed.
  • the component identification information stored in the tags 401 and 401n includes information indicating that the components 400 and 400n are genuine products.
  • the tags 401 and 401n of this embodiment are tags that communicate with the excavator 100 by, for example, near field communication (RFID; radio frequency identification).
  • RFID near field communication
  • the excavator 100 of this embodiment has a function of reading information from the tags 401 and 401n and a function of writing information to the tags 401 and 401n.
  • part 400 when part 400 is replaced with part 400n, part 400 is removed from shovel 100. Then, communication between the excavator 100 and the tag 401 is interrupted, and the excavator 100 becomes unable to read the component identification information stored in the tag 401. Thereby, the excavator 100 detects that the component 400 to which the tag 401 is attached has been removed.
  • the shovel 100 resumes communication with the tag 401n of the part 400n and recognizes the part identification information stored in the tag 401n.
  • the excavator 100 of this embodiment recognizes that the part 400 has been replaced with the part 400n when communication with the tag 401n is resumed after communication with the tag 401 is interrupted.
  • the excavator 100 When the excavator 100 detects that the part 400 has been replaced, the excavator 100 manages the machine number (machine serial number, etc.) as identification information of the machine of the excavator 100 and information indicating that the part 400 has been replaced. Send to device 200. Specifically, the excavator 100 transmits to the management device 200 association information that associates the machine number of the excavator 100 with the component identification information of the component 400n.
  • machine number machine serial number, etc.
  • the management device 200 When the management device 200 receives the association information, the management device 200 updates the maintenance information and the like of the shovel 100 managed by the management device 200.
  • the maintenance information for the shovel 100 may be part of management information for managing various states of the shovel 100.
  • the machine number of the own machine and the part 400n attached to the excavator 100 are sent to the tag 401n.
  • information indicating the date on which the date was received In other words, the date on which the part 400n was attached to the shovel 100 is the date on which the part was replaced.
  • the tag 401n that once communicated with the excavator 100 stores the machine number of the excavator 100 and information indicating the date on which the part 400n was replaced as usage history information of the tag 401n. .
  • the tag 401n even if the tag 401n is removed from the part 400n once attached to the excavator 100 and attached to another part, the tag 401n stores past usage history information, so the excavator 100 Other parts are not recognized as genuine products.
  • the excavator 100 of this embodiment cuts off communication with the tag 401n attached to the other part, and indicates that the part has been replaced with a non-genuine part.
  • the management device 200 may also be notified.
  • the excavator 100 does not need to detect that the parts have been replaced.
  • the excavator 100 of this embodiment has a lower traveling body 1, a turning mechanism 2, and an upper rotating body 3.
  • an upper rotating body 3 is rotatably mounted on the lower traveling body 1 via a rotating mechanism 2.
  • a boom 4 is attached to the upper revolving body 3.
  • An arm 5 is attached to the tip of the boom 4, and a bucket 6 as an end attachment is attached to the tip of the arm 5.
  • the boom 4, arm 5, and bucket 6 constitute a digging attachment as an example of an attachment.
  • the boom 4 is driven by a boom cylinder 7, the arm 5 is driven by an arm cylinder 8, and the bucket 6 is driven by a bucket cylinder 9.
  • a boom angle sensor S1 is attached to the boom 4, an arm angle sensor S2 is attached to the arm 5, and a bucket angle sensor S3 is attached to the bucket 6.
  • the boom angle sensor S1 is configured to detect the rotation angle of the boom 4.
  • the boom angle sensor S1 is an acceleration sensor, and can detect the rotation angle of the boom 4 with respect to the upper rotating structure 3 (hereinafter referred to as "boom angle").
  • boost angle the rotation angle of the boom 4 with respect to the upper rotating structure 3
  • the boom angle becomes the minimum angle when the boom 4 is lowered the most, and increases as the boom 4 is raised.
  • the arm angle sensor S2 is configured to detect the rotation angle of the arm 5.
  • the arm angle sensor S2 is an acceleration sensor, and can detect the rotation angle of the arm 5 with respect to the boom 4 (hereinafter referred to as "arm angle").
  • arm angle becomes the minimum angle when the arm 5 is most closed, and increases as the arm 5 is opened.
  • the bucket angle sensor S3 is configured to detect the rotation angle of the bucket 6.
  • the bucket angle sensor S3 is an acceleration sensor, and can detect the rotation angle of the bucket 6 with respect to the arm 5 (hereinafter referred to as "bucket angle").
  • the bucket angle becomes the minimum angle when the bucket 6 is most closed, and increases as the bucket 6 is opened.
  • the boom angle sensor S1, arm angle sensor S2, and bucket angle sensor S3 are each a potentiometer using a variable resistor, a stroke sensor that detects the stroke amount of the corresponding hydraulic cylinder, and a rotation angle around the connecting pin. It may be a rotary encoder, a gyro sensor, or a combination of an acceleration sensor and a gyro sensor.
  • a boom rod pressure sensor S7R and a boom bottom pressure sensor S11B are attached to the boom cylinder 7.
  • An arm rod pressure sensor S8R and an arm bottom pressure sensor S8B are attached to the arm cylinder 8.
  • a bucket rod pressure sensor S9R and a bucket bottom pressure sensor S9B are attached to the bucket cylinder 9.
  • Boom rod pressure sensor S7R, boom bottom pressure sensor S11B, arm rod pressure sensor S8R, arm bottom pressure sensor S8B, bucket rod pressure sensor S9R, and bucket bottom pressure sensor S9B are also collectively referred to as "cylinder pressure sensors.”
  • the boom rod pressure sensor S7R detects the pressure in the rod side oil chamber of the boom cylinder 7 (hereinafter referred to as “boom rod pressure”), and the boom bottom pressure sensor S11B detects the pressure in the bottom side oil chamber of the boom cylinder 7 (hereinafter referred to as “boom rod pressure”). , “boom bottom pressure”).
  • the arm rod pressure sensor S8R detects the pressure in the rod side oil chamber of the arm cylinder 8 (hereinafter referred to as “arm rod pressure”), and the arm bottom pressure sensor S8B detects the pressure in the bottom side oil chamber of the arm cylinder 8 (hereinafter referred to as “arm rod pressure”). , “arm bottom pressure”) is detected.
  • the bucket rod pressure sensor S9R detects the pressure in the rod side oil chamber of the bucket cylinder 9 (hereinafter referred to as “bucket rod pressure”), and the bucket bottom pressure sensor S9B detects the pressure in the bottom side oil chamber of the bucket cylinder 9 (hereinafter referred to as “bucket rod pressure”). , “bucket bottom pressure”).
  • the upper revolving body 3 is provided with a cabin 10 which is a driver's room, and is equipped with a power source such as an engine 11. Furthermore, a sensor for detecting the amount of CO 2 emissions may be provided near the exhaust mechanism of the engine 11.
  • the upper revolving body 3 includes a controller 30, a display device 40, an input device 42, an audio output device 43, a storage device 47, a positioning device P1, a body tilt sensor S4, a turning angular velocity sensor S5, an imaging device S6, and a communication device T1. is installed.
  • the upper revolving structure 3 may be equipped with a power storage unit that supplies electric power, a motor generator that generates electricity using the rotational driving force of the engine 11, and the like.
  • the power storage unit is, for example, a capacitor, a lithium ion battery, or the like.
  • a motor generator may function as an electric motor to drive a mechanical load, or may function as a generator to supply power to an electrical load.
  • the controller 30 functions as a main control unit that controls the drive of the shovel 100.
  • the controller 30 includes a CPU, RAM, ROM, and the like.
  • the controller 30 may include a CPU, RAM, ROM, etc., and a circuit that handles analog signals, which will be described later.
  • the various functions of the controller 30 are realized, for example, by the CPU executing programs stored in the ROM.
  • the various functions may include, for example, at least one of a machine guidance function that guides the manual operation of the shovel 100 by the operator, and a machine control function that automatically supports the manual operation of the shovel 100 by the operator. good.
  • the display device 40 is configured to display various information.
  • the display device 40 may be connected to the controller 30 via a communication network such as CAN, or may be connected to the controller 30 via a dedicated line.
  • the input device 42 is configured to allow an operator to input various information to the controller 30.
  • the input device 42 includes at least one of a touch panel, a knob switch, a membrane switch, etc. installed in the cabin 10.
  • the audio output device 43 is configured to output audio.
  • the audio output device 43 may be, for example, an in-vehicle speaker connected to the controller 30, or may be an alarm device such as a buzzer.
  • the audio output device 43 is configured to output various information as audio in response to audio output commands from the controller 30.
  • the storage device 47 is configured to store various information.
  • the storage device 47 is, for example, a nonvolatile storage medium such as a semiconductor memory.
  • the storage device 47 may store information output by various devices while the shovel 100 is in operation, or may store information acquired via the various devices before the shovel 100 starts operating.
  • the storage device 47 may, for example, store data regarding the target construction surface acquired via the communication device T1 or the like.
  • the target construction surface may be set by the operator of the excavator 100, or may be set by a construction manager or the like.
  • the positioning device P1 is configured to measure the position of the upper revolving structure 3.
  • the positioning device P1 may be configured to be able to measure the orientation of the upper rotating body 3.
  • the positioning device P1 is, for example, a GNSS compass, detects the position and orientation of the upper rotating body 3, and outputs the detected value to the controller 30. Therefore, the positioning device P1 can also function as a direction detection device that detects the direction of the upper rotating body 3.
  • the orientation detection device may be an orientation sensor attached to the upper revolving body 3.
  • the body tilt sensor S4 is configured to detect the tilt of the upper revolving body 3.
  • the body inclination sensor S4 is an acceleration sensor that detects the longitudinal inclination angle around the longitudinal axis and the lateral inclination angle around the left-right axis of the upper revolving superstructure 3 with respect to the virtual horizontal plane.
  • the longitudinal axis and the lateral axis of the upper revolving body 3 are perpendicular to each other at, for example, the center point of the shovel, which is one point on the swing axis of the shovel 100.
  • the turning angular velocity sensor S5 is configured to detect the turning angular velocity of the upper rotating body 3.
  • the turning angular velocity sensor S5 may be configured to detect or calculate the turning angle of the upper rotating body 3.
  • the turning angular velocity sensor S5 is a gyro sensor.
  • the turning angular velocity sensor S5 may be a resolver, a rotary encoder, or the like.
  • the imaging device S6 is an example of a space recognition device, and is configured to acquire images around the excavator 100.
  • the imaging device S6 includes a front camera S6F that images the space in front of the shovel 100, a left camera S6L that images the space to the left of the shovel 100, and a right camera S6R that images the space to the right of the shovel 100. , and a rear camera S6B that images the space behind the shovel 100.
  • the imaging device S6 is, for example, a monocular camera having an imaging device such as a CCD or CMOS, and outputs the captured image to the display device 40.
  • the imaging device S6 may be a stereo camera, a distance image camera, or the like.
  • the imaging device S6 may be replaced with another spatial recognition device such as a three-dimensional distance image sensor, an ultrasonic sensor, a millimeter wave radar, a LIDAR or an infrared sensor, or a combination of another spatial recognition device and a camera. May be replaced.
  • the front camera S6F is attached to the ceiling of the cabin 10, that is, inside the cabin 10, for example. However, the front camera S6F may be attached to the outside of the cabin 10, such as the roof of the cabin 10 or the side surface of the boom 4.
  • the left camera S6L is attached to the left end of the upper surface of the revolving upper structure 3
  • the right camera S6R is attached to the right end of the upper surface of the upper revolving structure 3
  • the rear camera S6B is attached to the rear end of the upper surface of the revolving upper structure 3. .
  • the communication device T1 is configured to control communication with external equipment outside the excavator 100.
  • the communication device T1 controls communication with an external device via a satellite communication network, a mobile phone communication network, an Internet network, or the like.
  • the external device may be, for example, the management device 200 such as a server installed in an external facility.
  • the excavator 100 may be configured to transmit various information regarding the excavator 100 to the management device 200 at predetermined time intervals via the communication device T1. With this configuration, a worker, a manager, or the like outside the excavator 100 can visually check various information about the excavator 100 through a display device such as a monitor connected to the management device 200.
  • FIG. 2 is a block diagram showing a configuration example of a drive system of an excavator.
  • the mechanical power system, high pressure hydraulic line, pilot line, and electric control system are shown by double lines, thick solid lines, broken lines, and dotted lines, respectively.
  • the drive system of the excavator 100 mainly includes an engine 11, a regulator 13, a main pump 14, a pilot pump 15, a control valve 17, an operating device 26, a discharge pressure sensor 28, an operating pressure sensor 29, It includes a controller 30, a proportional valve 31, a work mode selection dial 32, and the like.
  • the engine 11 is a driving source for the excavator.
  • the engine 11 is, for example, a diesel engine that operates to maintain a predetermined rotation speed.
  • the output shaft of the engine 11 is connected to the input shafts of the main pump 14 and the pilot pump 15.
  • the main pump 14 supplies hydraulic oil to the control valve 17 via a high-pressure hydraulic line.
  • the main pump 14 is a swash plate type variable displacement hydraulic pump.
  • the regulator 13 controls the discharge amount of the main pump 14.
  • the regulator 13 controls the discharge amount of the main pump 14 by adjusting the tilt angle of the swash plate of the main pump 14 in accordance with a control command from the controller 30 .
  • the pilot pump 15 supplies hydraulic oil to various hydraulic control devices including the operating device 26 and the proportional valve 31 via the pilot line.
  • the pilot pump 15 is a fixed displacement hydraulic pump.
  • the control valve 17 is a hydraulic control device that controls the hydraulic system in the excavator.
  • Control valve 17 includes control valves 171 to 176 and bleed valve 177.
  • the control valve 17 can selectively supply the hydraulic fluid discharged by the main pump 14 to one or more hydraulic actuators through the control valves 171 to 176.
  • the control valves 171 to 176 control the flow rate of hydraulic oil flowing from the main pump 14 to the hydraulic actuator and the flow rate of hydraulic oil flowing from the hydraulic actuator to the hydraulic oil tank.
  • the hydraulic actuator includes a boom cylinder 7, an arm cylinder 8, a bucket cylinder 9, a left travel hydraulic motor 1A, a right travel hydraulic motor 1B, and a swing hydraulic motor 2A.
  • the bleed valve 177 controls the flow rate of the hydraulic oil discharged by the main pump 14, which flows into the hydraulic oil tank without passing through the hydraulic actuator (hereinafter referred to as "bleed flow rate").
  • the bleed valve 177 may be installed outside the control valve 17.
  • the operating device 26 is a device used by an operator to operate the hydraulic actuator.
  • the operating device 26 supplies the hydraulic fluid discharged by the pilot pump 15 to the pilot port of the control valve corresponding to each of the hydraulic actuators via the pilot line.
  • the pressure of the hydraulic oil (pilot pressure) supplied to each of the pilot ports is a pressure that corresponds to the direction and amount of operation of the lever or pedal (not shown) of the operating device 26 corresponding to each of the hydraulic actuators. .
  • the discharge pressure sensor 28 detects the discharge pressure of the main pump 14. In this embodiment, the discharge pressure sensor 28 outputs the detected value to the controller 30.
  • the operating pressure sensor 29 detects the content of the operator's operation using the operating device 26.
  • the operating pressure sensor 29 detects the operating direction and operating amount of the lever or pedal of the operating device 26 corresponding to each of the hydraulic actuators in the form of pressure (operating pressure), and sends the detected value to the controller 30. Output against.
  • the operation content of the operating device 26 may be detected using a sensor other than the operating pressure sensor.
  • the controller 30 is a control unit that controls the entire shovel 100. Details of the functions of the controller 30 of this embodiment will be described later.
  • the proportional valve 31 operates according to a control command output by the controller 30.
  • the proportional valve 31 is an electromagnetic valve that adjusts the secondary pressure introduced from the pilot pump 15 into the pilot port of the bleed valve 177 in the control valve 17 in accordance with the current command output by the controller 30.
  • the proportional valve 31 operates, for example, so that the larger the current command, the larger the secondary pressure introduced into the pilot port of the bleed valve 177.
  • the work mode selection dial 32 is a dial for the operator to select a work mode, and allows switching between a plurality of different work modes. Further, the work mode selection dial 32 constantly sends data to the controller 30 indicating the setting state of the engine speed and the setting state of acceleration/deceleration characteristics according to the work mode.
  • the work mode selection dial 32 allows the work mode to be switched in multiple stages including SP mode, H mode, A mode, and IDLE mode. In other words, the work mode selection dial 32 of this embodiment can switch the setting conditions of the excavator 100.
  • FIG. 2 shows a state in which the SP mode is selected with the work mode selection dial 32.
  • the SP mode is a work mode selected when it is desired to prioritize the amount of work, and utilizes the highest engine speed and the highest acceleration/deceleration characteristics.
  • the H mode is a work mode selected when it is desired to achieve both work volume and fuel efficiency, and uses the second highest engine speed and the second highest acceleration/deceleration characteristic.
  • Mode A is a work mode selected when you want to moderate the acceleration and deceleration characteristics of the hydraulic actuator that corresponds to lever operation, improve accurate operability and safety, and operate the excavator with low noise. It uses the third highest engine speed and the third highest acceleration/deceleration characteristics.
  • the IDLE mode is a work mode selected when it is desired to put the engine 11 in a low idling state, and uses the lowest engine speed and the lowest acceleration/deceleration characteristics.
  • the controller 30 when the operation of each actuator is stopped while the engine is driving in each work mode (high idling state), the controller 30 causes the engine 11 to maintain the rotation speed set for each work mode.
  • the controller 30 may switch the engine speed to a low idling state when the high idling state continues for a predetermined period of time.
  • the idling state includes a high idling state and a low idling state.
  • the names of each stage of the work mode are SP mode, H mode, A mode, and IDLE mode, but the names of each stage are not limited to these.
  • the names of SP mode, H mode, and A mode may be POWER mode, STD mode, ECO mode, and IDLE mode (low idling state).
  • the work mode is not limited to this embodiment, and may be set in five or more stages.
  • the engine 11 is controlled to have a constant rotation speed at the engine speed of the work mode set by the work mode selection dial 32. Further, the opening of the bleed valve 177 is controlled based on the bleed valve opening characteristic of the work mode set by the work mode selection dial 32. The bleed valve opening characteristics will be described later.
  • each of the above-mentioned work modes may be expressed as a setting condition of the shovel 100, and information indicating the setting condition may be expressed as setting condition information.
  • Setting condition information is information in which specified items are associated with item values.
  • the designated item is, for example, an item indicating the state of the engine rotation speed corresponding to each work mode, or an item indicating the state of the acceleration/deceleration characteristic. Therefore, the setting condition information of this embodiment includes items and item values indicating the state of engine rotation speed corresponding to each work mode, and items and item values indicating the state of acceleration/deceleration characteristics.
  • the ECO mode is set as one of the modes selected by the work mode selection dial 32, but an ECO mode switch may be provided separately from the work mode selection dial 32.
  • the engine speed is adjusted according to each mode selected using the work mode selection dial 32, and when the ECO mode switch is turned on, the acceleration/deceleration corresponding to each mode of the work mode selection dial 32 is adjusted. The characteristics may be changed gradually.
  • the work mode may be changed by voice input.
  • the excavator is provided with a voice input device for inputting the voice emitted by the operator to the controller 30.
  • the controller 30 is provided with a voice identification unit that identifies the voice input by the voice input device.
  • the work mode is selected by the mode selection section such as the work mode selection dial 32, the ECO mode switch, and the voice recognition section.
  • the controller 30 of this embodiment includes a read/write section 301, a replacement determination section 302, and a communication control section 303.
  • the read/write unit 301 reads information stored in the memory 403 of the tag 401. That is, the read/write section 301 of this embodiment is an example of a reading section that reads information from a tag.
  • the read/write section 301 converts (demodulates) an analog signal received from the tag 401 via the transceiver 304 into a digital signal, and passes it to the subsequent exchange determination section 302 implemented by the CPU.
  • the analog signals received from the tags 401 and 401n are analog signals transmitted from the antenna 402 of the tag 401 and include component identification information stored in the memory 403.
  • the transceiver 304 of this embodiment will be explained.
  • the transceiver 304 of this embodiment may be attached at a position where the serviceman P can read the tag 401n when attaching the part 400n to the excavator 100, for example.
  • the read/write unit 301 writes the machine number and replacement date information to the memory 403 of the tag 401n in response to an instruction from the replacement determination unit 302. That is, the read/write unit 301 of this embodiment is an example of a writing unit that writes information to a tag.
  • the transceiver 304 may include a read/write section 301 and a replacement determination section 302.
  • the power source for the transceiver 304 includes a battery different from the battery that supplies power to the controller 30 of the excavator 100. Therefore, even when the engine is off or the controller 30 is off, the information written in the tag 401 can be determined by the transceiver 304. Further, when the controller 30 is in the on state, information from the transceiver 304 is transmitted to the controller 30. Further, the power source of the transceiver 304 may also be used as a battery that supplies power to the controller 30 of the excavator 100. In this case, only the controller 30 may be turned on by a signal from outside the excavator 100.
  • the read/write unit 301 converts (modulates) the aircraft number and exchange date information into an analog signal, and transmits it to the tag 401n via the transceiver 304.
  • the tag 401n writes the machine number and replacement date information included in this analog signal into the memory 403.
  • the replacement determination unit 302 determines whether the read/write unit 301 has lost communication with the tag 401. Furthermore, after the communication with the tag 401 is interrupted, the replacement determination unit 302 determines whether the information read by the read/write unit 301 is only the component identification information of the component 400n.
  • the replacement determination unit 302 determines that the replacement of the component 400 with the component 400n is complete when the read information is only the component identification information of the component 400n. When the replacement is completed, the replacement determining unit 302 stores association information that associates the component identification information of the component 400n with the body number of the excavator 100 in the storage device of the excavator 100.
  • the replacement determination unit 302 instructs the read/write unit 301 to write the machine number and replacement date information to the tag 401n.
  • the replacement determination unit 302 determines whether the read/write unit 301 and the tag 401n communication is cut off.
  • the information other than the component identification information of the component 400n is past usage history information of the tag 401n, including the body number of the excavator 100 and replacement date information.
  • the communication control unit 303 communicates with external devices such as the management device 200 via the communication device T1. Specifically, the communication control unit 303 uses association information that associates the component identification information of the component 400n with the machine number of the excavator 100, and information that indicates that a component to which a tag with a usage history has been attached is attached. You may send a notification etc. indicating this to the management device 200.
  • the controller 30 includes the read/write unit 301, but the controller 30 is not limited to this.
  • the read/write section 301 may be provided outside the controller 30.
  • FIG. 3 is a sequence diagram illustrating the operation of the management system.
  • FIG. 3 shows the operation of the management system SYS after the component 400 is removed from the excavator 100 and communication between the tag 401 of the component 400 and the read/write section 301 is interrupted.
  • the excavator 100 of this embodiment reads information from the tag 401n of the new part 400n using the read/write unit 301 (step S301). At this time, the hydraulic actuator is in a non-operating state in which it is not operated due to the shutoff of the hydraulic circuit by the gate lock valve or the like.
  • the replacement determination unit 302 determines whether the part 400n is a genuine product (step S302).
  • the replacement determination unit 302 determines whether the information read in step S301 is only component identification information. Then, when the read information is only component identification information, the replacement determining unit 302 determines that the component 400n is a genuine product. If the read information includes a machine number (machine identification information) written in the past, the replacement determination unit 302 can determine that the part is a non-genuine part. In this way, by reading the aircraft number (aircraft identification information) that has already been written, it is possible to determine which aircraft the tag 401 was used for in the past, where the tag 401 was used, etc. can be judged.
  • the replacement determination unit 302 may previously hold component identification information of the component 400n, and compares the component identification information read by the read/write unit 301 with the previously held component identification information to determine whether both are compatible. If they match, the part 400n may be determined to be a genuine product. Furthermore, if the component identification information read by the read/write unit 301 is of a component other than the component 400n, the replacement determination unit 302 determines that a component different in type from the removed component is about to be installed. You may also output a notification, warning, etc. indicating this.
  • step S303 to step S306 in FIG. 3 is the processing when the component 400n is determined to be a genuine product in step S302. Further, the processes in steps S306 and S307 in FIG. 3 are processes when the part 400n is not a genuine product.
  • step S302 if it is determined that the product is genuine, the replacement determination unit 302 stores association information that associates the machine number of the excavator 100, the component identification information of the component 400n, and the replacement date information (step S303 ).
  • the machine number of the excavator 100 may be stored in advance in a ROM or the like included in the controller 30.
  • the excavator 100 transmits a notification indicating that the part 400 has been replaced with the part 400n to the management device 200 via the communication control unit 303 (step S304).
  • the replacement determination unit 302 transmits the association information to the management device 200 as a notification of completion of replacement of the component 400n.
  • the management device 200 Upon receiving this notification, the management device 200 updates the maintenance information managed by the management device 200 (step S305).
  • the management device 200 may add replacement history information indicating that the component 400 has been replaced with the component 400n to the maintenance information of the shovel 100 included in the management information. Furthermore, the management device 200 may calculate the scheduled replacement date of the component 400n and include the calculated date in the maintenance information.
  • the replacement determination unit 302 of the excavator 100 instructs the read/write unit 301 to write the machine number and replacement date information of the excavator 100, and the read/write unit 301 writes the machine identification information to the tag 401n.
  • the machine number and replacement date information are written (step S306).
  • step S303 to step S306 in FIG. 3 may be performed after the component 400n is attached to the shovel 100. Furthermore, among the processes from step S303 to step S306 in FIG. It may be done later.
  • the body of the excavator 100 may be provided with a mechanism or the like for fixing the component 400n. Further, the excavator 100 may detect that the component 400n is attached to the shovel 100 when the component 400n is fixed by this mechanism.
  • the information written to the tag 401n is the aircraft number and the replacement date information, but the information is not limited thereto. In this embodiment, it is sufficient that the machine number is written to the tag 401n, and the replacement date information does not need to be written.
  • step S302 if the product is not determined to be genuine, the replacement determination unit 302 notifies the management device 200 via the communication control unit 303 that the component 400 has been replaced with a non-genuine component 400n. (step S307).
  • step S302 the case where the product is not determined to be genuine means that the information read from the tag 401n includes information other than component identification information.
  • the management device 200 Upon receiving this notification, the management device 200 updates the maintenance information managed by the management device 200 (step S308).
  • the management device 200 may add information indicating that the non-genuine part 400n is used to the maintenance information of the part corresponding to the part identification information read in step S301. .
  • the management device 200 may maintain a state in which the replacement of the component 400 of the excavator 100 is not completed in the maintenance information. If this is done, the replacement time of the next component 400 will not be updated, and therefore the replacement of the component 400 will be instructed at an earlier timing.
  • the management device 200 does not update the maintenance information and determines whether the component is inappropriate for the excavator 100.
  • a warning or the like may be output to indicate that a is about to be attached.
  • FIG. 4A is a first diagram illustrating information stored in a tag
  • FIG. 4B is a second diagram illustrating information stored in a tag.
  • FIGS. 4A and 4B show changes in information stored in the memory 403 when the component 400n is a genuine product.
  • FIG. 4A shows the memory 403 of the tag 401n in step S301 of FIG. That is, FIG. 4A shows a state before the component 400n is attached to the shovel 100.
  • the memory 403 stores only the component identification information of the component 400n to which the tag 401n is attached.
  • FIG. 4B shows the memory 403 of the tag 401n in step S306 of FIG.
  • FIG. 4B shows a state in which writing of the machine number and replacement date information by the read/write section 301 is completed after the component 400n is attached to the shovel 100.
  • FIG. 4B it can be seen that the aircraft number and replacement date information are stored in the memory 403.
  • FIG. 5 is a diagram showing a first display example of maintenance information.
  • a screen 280 shown in FIG. 5 is an example of a screen when maintenance information for the shovel 100 is displayed on the display of the management device 200, for example.
  • the screen 280 is an example of a screen listing the replacement history for each part of the excavator 100. Further, FIG. 5 shows a list screen of replacement history when the part 400n is a genuine part.
  • the screen 280 has display areas 281, 282, and 283.
  • air filter replacement history information is displayed as an example of the component 400n.
  • fuel filter replacement history information is displayed as an example of the component 400n.
  • the horizontal axes in the display areas 281 and 282 indicate the cumulative operating time of the shovel 100.
  • the machine number of the excavator 100 is displayed in the display area 283.
  • the management device 200 of this embodiment When the management device 200 of this embodiment receives a notification from the support device 300 indicating that the replacement of the part 400n from the excavator 100 has been completed, the management device 200 reflects this notification in the maintenance information.
  • the management device 200 adds the replacement history information of the part corresponding to the part identification information included in this notification to the maintenance information corresponding to the body number of the excavator 100 included in this notification.
  • next air filter replacement date is displayed in the display area 285.
  • the next replacement date will be after the predefined operating time has elapsed.
  • the completion of replacing parts of the excavator 100 is automatically reflected in the maintenance information, so the service engineer does not need to input the details of the work into the management device 200. do not have. Therefore, according to the present embodiment, it is possible to suppress the occurrence of a situation in which maintenance information is not updated due to a human error such as forgetting an input by a service person, and to provide accurate information to the user of the management device 200. Maintenance information can be grasped.
  • FIG. 6 is a diagram showing a second display example of maintenance information.
  • FIG. 5 shows a list screen of replacement history when the part 400n is not a genuine product.
  • a non-genuine part is a part to which a tag 401n, which stores information indicating past usage history in the memory 403, is attached.
  • FIG. 6 shows a case where the air filter whose replacement history information is displayed in the display area 281 is replaced with a non-genuine air filter.
  • the management device 200 of this embodiment receives a notification indicating that the air filter has been replaced with a non-genuine product, the management device 200 specifies that the air filter is a genuine product for a period until the next air filter replacement date. Make it shorter than usual.
  • the manager, service person, etc. of the excavator 100 can be urged to promptly replace it with a genuine product. Can be done.
  • air filter replacement history information is displayed in the display area 284, but the display area 284 is not limited to this.
  • a warning or the like indicating that the air filter is not a genuine product may be displayed in the display area 284.
  • the transceiver 304 is placed in a space where parts that require regular replacement are placed. Specifically, the transceiver 304 is preferably arranged, for example, in a pump chamber where a plurality of filters such as a fuel filter are arranged, an intake chamber where an air filter is arranged, or the like.
  • the management device 200 does not need to display the replacement history information.
  • the display area 284 may not be displayed in the display area 281, but the display area 285A may be displayed.

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PCT/JP2023/001251 2022-03-31 2023-01-18 ショベルの管理システム、ショベルの管理方法 Ceased WO2023188708A1 (ja)

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JP2024511280A JPWO2023188708A1 (https=) 2022-03-31 2023-01-18
CN202380016476.1A CN118510965A (zh) 2022-03-31 2023-01-18 挖土机的管理系统及挖土机的管理方法
KR1020247022203A KR20240165925A (ko) 2022-03-31 2023-01-18 쇼벨의 관리시스템, 쇼벨의 관리방법
EP23778747.8A EP4502282A4 (en) 2022-03-31 2023-01-18 EXCAVATOR MANAGEMENT SYSTEM AND EXCAVATOR MANAGEMENT METHOD
US18/895,879 US20250012055A1 (en) 2022-03-31 2024-09-25 Shovel management system and shovel management method

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JP2005273196A (ja) 2004-03-23 2005-10-06 Sumitomo (Shi) Construction Machinery Manufacturing Co Ltd 建設機械の交換部品識別装置
JP2014141178A (ja) * 2013-01-24 2014-08-07 Toyota Industries Corp 共有車両管理システム
WO2015040719A1 (ja) * 2013-09-19 2015-03-26 株式会社小松製作所 通信装置およびこれを備えた作業車両
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KR20240165925A (ko) 2024-11-25
US20250012055A1 (en) 2025-01-09

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