JP6457961B2 - Work machine control device and work machine control system - Google Patents

Description

  The present invention relates to a work machine control device and a work machine control system.

  2. Description of the Related Art Conventionally, there is known a display device for a work machine that displays on a display screen a state display mark that displays the state of the work machine and a state change display mark that indicates a change in the state of the work machine (Patent Document 1). In the display device for a work machine described in Patent Document 1, a state display mark is displayed when no abnormality occurs in the work machine, and the state display mark with the lowest priority is hidden or reduced when an abnormality occurs. Display the status change display mark.

JP 2002-121776 A

  However, in the display device for a work machine described in Patent Literature 1, the display mode of the instrument image cannot be changed in accordance with the work machine management information such as the area where the work machine operates and the frequency of warning of the work machine. Therefore, there is a possibility that inconvenience may occur depending on the state of the work machine.

Work machine control apparatus according to an aspect of the present invention includes: a position information acquisition unit that acquires position information of the work machine, the warning information generation unit which generates warning information based on the occurrence of the working machine of abnormality, the working a priority determining section for determining the display priority of the instrument image Ru is displayed on the display unit provided in the machine, based on the superior determined Sakido by the priority determination unit, the instrument to be displayed on the display unit e Bei a display control unit for controlling the display mode of the image, the previous SL priority determining unit identifies a region where the working machine is running on the basis of the position information that will be acquired by the position information acquisition unit And acquiring instrument priority information corresponding to the specified area information, acquiring instrument priority information corresponding to the warning information generated by the warning information generating unit, and based on the acquired instrument priority information On the display. The display control unit determines the display priority of the instrument image to be performed, and the display control unit prioritizes the instrument image based on the priority regarding the region information determined by the priority determination unit and the warning information determined by the priority determination unit. Switch and display the instrument image based on the degree .

  ADVANTAGE OF THE INVENTION According to this invention, the visibility of the information which wants to raise alertness can be raised according to the management information of work machines, such as an operation area.

The side view of the wheel excavator 100 which is an example of a working machine. The block diagram which shows the structure of the control apparatus 20 which concerns on 1st Embodiment. The figure which shows an example of the display screen of the display part. The table | surface which shows an example of the instrument image displayed on the display part 30. FIG. The table | surface which shows an example of the priority table 210 which concerns on 1st Embodiment. The figure which shows another example of the priority table 210 which concerns on 1st Embodiment. The flowchart which shows an example of the process in the control apparatus 20 which concerns on 1st Embodiment. The flowchart which shows another example of the process in the control apparatus 20 which concerns on 1st Embodiment. The figure which shows an example of the display screen of the display part 30 after an image change. The block diagram which shows the structure of the control system 120 which concerns on 2nd Embodiment. (A) is a flowchart which shows an example of the process in the control apparatus 20B. FIG. 6B is a flowchart illustrating an example of processing in the server 90. (A) is a flow chart showing another example of processing in control device 20B. 9B is a flowchart illustrating another example of processing in the server 90.

(First embodiment)
FIG. 1 is a side view of a wheeled hydraulic excavator (hereinafter referred to as a wheel excavator 100) that is an example of a work machine. For convenience of explanation, the front and rear and the up and down directions of the wheel excavator 100 are defined as shown in FIG. The wheel excavator 100 includes a traveling body 101 and a revolving body 102 provided on the traveling body 101 so as to be able to swivel. The traveling body 101 is mounted with a traveling hydraulic motor (hereinafter referred to as a traveling motor), and the tire 105 is rotated by driving the traveling motor. A front working device 110 is provided at the front of the revolving structure 102.

  The front work device 110 includes a boom 106, an arm 107, and a bucket 108. The boom 106 is attached to the frame of the swing body 102 so as to be rotatable in the vertical direction with respect to the swing body 102. The boom 106 is driven by the boom cylinder 116 to rise and fall.

  The arm 107 is attached at the tip of the boom 106 so as to be rotatable in the vertical direction with respect to the boom 106. The arm 107 is driven by the arm cylinder 117 to rise and fall. The bucket 108 is attached to the tip of the arm 107 so as to be rotatable in the vertical direction with respect to the arm 107. Bucket 108 is driven by bucket cylinder 118.

  The frame of the swivel body 102 is provided with an operator cab 104 in which an operator is boarded and a counterweight 109. The counterweight 109 is provided with a monitoring camera (not shown).

  The cab 104 is provided with a display unit 30 for displaying various information such as various operation members such as an operation member for a front working device, an operation member for traveling, and an operation member for turning, and instruments related to a work machine. (See FIG. 2).

  FIG. 2 is a block diagram illustrating a configuration of the control device 20 according to the first embodiment. The display unit 30 is controlled by the control device 20. The control device 20 is configured to include an arithmetic processing unit having a CPU, a ROM and a RAM that are storage devices, and other peripheral circuits. The control device 20 functionally includes a management information acquisition unit 50, a priority list storage unit 21, a priority determination unit 22, and a display control unit 23. The control device 20 is connected to the sensor unit 40 and the display unit 30 via a network.

  The sensor unit 40 is a remaining amount sensor that detects the remaining amount of reducing agent (urea water) used in a device that purifies exhaust gas, a water temperature sensor that detects the coolant temperature of the engine, and a rotation that detects the number of revolutions of the engine. It has various sensors such as a number sensor, a GPS sensor that receives a GPS signal transmitted from a GPS satellite, and a vehicle speed sensor that detects the traveling speed of the vehicle. The sensor unit 40 outputs detection signals detected by various sensors to the control device 20.

  The management information acquisition unit 50 includes a position information acquisition unit 60 and a warning information generation unit 70. The position information acquisition unit 60 acquires position information of the wheel excavator 100 by performing calculations using GPS signals output from the GPS sensors that constitute the sensor unit 40. The warning information generation unit 70 generates warning information for the wheel excavator 100. The warning information generation unit 70 includes an abnormality history storage unit 71, an abnormality determination unit 72, an exchange time acquisition unit 73, and an operation time calculation unit 74. The management information of the wheel excavator 100 includes position information acquired by the position information acquisition unit 60 and warning information of the wheel excavator 100 generated by the warning information generation unit 70.

  The abnormality determination unit 72 detects the occurrence of abnormality in the wheel excavator 100 based on the detection signal output by the sensor unit 40. The abnormality determination unit 72 acquires abnormality information of the wheel excavator 100 when it is determined that an abnormality has occurred in the wheel excavator 100.

  The operating time calculation unit 74 calculates the operating time of the wheel excavator 100 based on the detection signal output by the sensor unit 40. The operation time calculation unit 74 acquires the operation time information of the wheel excavator 100 by performing calculation using, for example, a detection signal output by an hour meter included in the sensor unit 40.

  The abnormality history storage unit 71 stores abnormality history information in which information related to the abnormality of the wheel excavator 100 is associated with information related to operating time. Based on the abnormality information acquired by the abnormality determination unit 72 and the operation time information acquired by the operation time calculation unit 74, the abnormality history storage unit 71 detects information related to the abnormality of the wheel excavator 100 and an abnormality. And information on the working hours at the time.

  The replacement time acquisition unit 73 acquires replacement time information of parts of the wheel excavator 100. The replacement time acquisition unit 73 stores replacement time information of various parts such as a hydraulic oil filter, for example, by an input operation from an operator or a service person. The replacement time information includes, for example, information on regular replacement time and operating time when parts are replaced.

  Based on the abnormality history information stored in the abnormality history storage unit 71 and the replacement time information stored in the replacement time acquisition unit 73, the warning information generation unit 70 generates an abnormality earlier than the regular replacement time. If it is determined that it is, warning information is generated.

  For example, when an abnormality is detected, the warning information generation unit 70 calculates an elapsed time from the previous abnormality detection based on the abnormality history information. When the value obtained by subtracting the elapsed time from the periodic replacement time is greater than a predetermined value, the warning information generation unit 70 determines that an abnormality has occurred a predetermined time earlier than the periodic replacement time, and generates warning information.

  The priority determination unit 22 is based on the position information of the wheel excavator 100 included in the management information acquired by the management information acquisition unit 50, and the priority table 210 stored in the priority list storage unit 21 (see FIG. 5). Referring to Fig. 5, the region where the wheel excavator 100 is operating is specified. The priority determination unit 22 determines the display priority (priority order) of the instrument image to be displayed on the display unit 30 based on the specified region information. The priority determination method by the priority determination unit 22 will be described later with reference to the flowcharts of FIGS.

  The priority list storage unit 21 stores a priority table 210 that is correspondence information in which the management information of the wheel excavator 100 is associated with the instrument priority information. The priority table 210 includes, for example, a plurality of area information and instrument priority information for each area. The priority list storage unit 21 can change the priority table 210 by an operation by a service person who performs maintenance of the wheel excavator 100, distribution of update information from the management server, or the like. Details of the priority table 210 stored in the priority list storage unit 21 will be described later with reference to FIGS. 5 and 6.

  The display control unit 23 controls the display mode of the instrument image displayed on the display unit 30 based on the display priority determined by the priority determination unit 22. The display control unit 23 generates an image signal for causing the display unit 30 to display an instrument image based on the display priority and the detection signal output by the sensor unit 40. The display control unit 23 outputs the generated image signal to the display unit 30. The display unit 30 includes a liquid crystal display. The display unit 30 displays an instrument image based on the image signal output by the display control unit 23. When both the priority based on the position information and the priority based on the warning information are acquired, the instrument image may be displayed based on one of the priorities, or both may be switched and displayed. May be.

  FIG. 3 is a diagram illustrating an example of a display screen of the display unit 30. The display unit 30 includes an instrument image display unit 31 that displays an instrument image of the wheel excavator 100 and a camera image display unit 32 that displays a camera image acquired by a rear monitoring camera. The display format of the instrument images 31a, 31b, 31c is a needle type. The display format of the instrument image 31d is a digital numerical expression. The display format of the instrument image 31e is a segment type.

  FIG. 4 is a table showing an example of an instrument image displayed on the display unit 30. For example, as shown in FIG. 4, the display unit 30 includes a cooling water temperature gauge, a fuel fuel gauge, a fuel consumption gauge, a hydraulic oil temperature gauge, an engine speed gauge, a urea fuel gauge, a brake oil pressure gauge, a speedometer, and a tachometer. indicate. The instrument image is displayed in a display format such as a needle type, a digital numerical type, and a segment type. The control device 20 can change the display format according to the type of instrument and the priority of display.

  FIG. 5 is a table showing an example of the priority table 210 stored in the priority list storage unit 21. The priority table 210 is correspondence information between the area information 211 and the instrument priority information 212. The regional information 211 includes, for example, a tropical region, a cold region, and an emerging country. The instrument priority information 212 includes instrument information 212a to be displayed with priority over the display unit for each region, and priority information 212b regarding display priority. The priority information 212b has a smaller numerical value as the priority is higher. For example, the priority “1” has a higher priority than the priority “2”.

  In general, since the outside air temperature is high in the tropical region, the temperature of the engine cooling water is high, and overheating is likely to occur. In the case of a tropical region, the priority list storage unit 21 stores the priority of the cooling water thermometer as 1, the priority of the hydraulic oil thermometer as 2, and the like. In general, in a cold region, the outside air temperature is low, so the temperatures of cooling water, hydraulic oil, etc. are low, and it is necessary to sufficiently warm the engine, hydraulic oil, etc. before starting work. In the case of a cold region, the priority list storage unit 21 stores the priority of the coolant temperature gauge as 1, the priority of the hydraulic oil temperature gauge as 2, the priority of the brake oil pressure gauge as 3, and the like. In general, in some emerging countries, there is a place where infrastructure is not maintained, so that the maintenance of the wheel excavator 100 is likely to be insufficient. In the emerging countries, the priority list storage unit 21 stores the fuel fuel gauge priority as 1, the urea fuel gauge priority as 2, the coolant temperature gauge priority as 3, and so on.

  FIG. 6 is a diagram illustrating another example of the priority table 210 stored in the priority list storage unit 21. The priority list storage unit 21 stores a priority table 210 including a plurality of warning information 213 and instrument priority information 214 for each warning information. The priority list storage unit 21 stores urea water deficiency, cooling water temperature abnormality, and the like as warning information 213. The priority list storage unit 21 stores, for each warning information, instrument information 214a to be displayed with priority on the display unit 30, and priority information 214b regarding display priority.

  When the urea water remaining amount is insufficient, the priority list storage unit 21 stores the priority of the urea remaining amount meter as 1. When the remaining amount of urea water is insufficient, engine output limitation such as reduction in engine speed and torque occurs. Therefore, the priority list storage unit 21 sets the priority of the engine speed meter to 2, and the speedometer priority. The degree is stored as 3 etc. When the cooling water temperature is abnormal, the cooling water temperature cannot be acquired, and engine output limitations such as a decrease in engine speed and torque occur. The priority list storage unit 21 stores the priority of the hydraulic oil temperature meter as 1, the priority of the engine speed meter as 2, the priority of the speedometer as 3, and the like.

  FIG. 7 is a flowchart illustrating an example of processing executed in the control device 20. The process shown in the flowchart of FIG. 7 is started, for example, by turning on a key switch (not shown). Processing for determining the display priority of the instrument image based on the position information of the wheel excavator 100 will be described with reference to FIG.

  In step S100, the management information acquisition unit 50 acquires the position information of the wheel excavator 100 calculated by the position information acquisition unit 60 as management information, and proceeds to step S110.

  In step S110, the priority determination unit 22 collates the position information of the wheel excavator 100 acquired in step S100 with a plurality of pieces of area information stored in the priority list storage unit 21. The position information of the wheel excavator 100 includes, for example, longitude and latitude information indicating the position of the wheel excavator 100. The area information stored in the priority list storage unit 21 includes, for example, longitude and latitude range information as position information. The priority determination part 22 specifies the area information which showed the area where the position of the wheel shovel 100 is contained by collating position information and area information. The priority determination unit 22 reads the instrument priority information 212 corresponding to the specified area information, thereby acquiring the instrument priority information 212 for the area where the wheel excavator 100 is located, and proceeds to step S120.

  In step S120, the priority determination unit 22 determines the display priority of the instrument image to be displayed on the display unit 30 based on the instrument priority information 212 for the area where the wheel excavator 100 is acquired in step S110. Then, the process proceeds to step S130.

  In step S130, the display control unit 23 generates an image signal for displaying an instrument image on the display unit 30 based on the display priority determined in step S120. The display control unit 23 generates an image signal so that, for example, an instrument image with a higher priority has a larger display size in order to increase the visibility of the instrument image with a higher priority. The display control unit 23 sets the display size such that priority 1 is a large size, priority 2 is a medium size, priority 3 is a small size, and the like. The display control unit 23 can simultaneously display a lot of information on the display unit 30 by adjusting the display size of the instrument image in accordance with the priority. The display control unit 23 outputs the generated image signal to the display unit 30. The display unit 30 changes the display mode of the instrument image based on the image signal output by the display control unit 23. When the display mode of the display unit 30 is changed, the control device 20 ends the process shown in FIG.

  FIG. 8 is a flowchart illustrating another example of processing executed in the control device 20. The process shown in the flowchart of FIG. 8 is started, for example, by turning on a key switch (not shown). Processing for determining the display priority of the instrument image based on the warning information of the wheel excavator 100 will be described with reference to FIG.

  In step S200, the abnormality determination unit 72 detects an abnormality of the wheel excavator 100 based on the detection signal output by the sensor unit 40, and proceeds to step S210.

  In step S210, the warning information generation unit 70 determines whether an abnormality has occurred a predetermined time earlier than the regular replacement time. If the warning information generation unit 70 determines that no abnormality has occurred a predetermined time earlier than the regular replacement time, the warning information generation unit 70 ends the processing illustrated in FIG. If the warning information generation unit 70 determines that an abnormality has occurred a predetermined time earlier than the regular replacement time, the process proceeds to step S220.

  In step S220, the warning information generation unit 70 generates warning information of the wheel excavator 100 based on the abnormality information detected by the abnormality determination unit 72, and the process proceeds to step S230.

  In step S <b> 230, the priority determination unit 22 collates the warning information of the wheel excavator 100 with a plurality of warning information stored in the priority list storage unit 21. The priority determination unit 22 reads the instrument priority information 214 corresponding to the identified warning information, thereby acquiring the instrument priority information 214 regarding the warning generated in the wheel excavator 100, and proceeds to step S240.

  In step S240, the priority determination unit 22 determines the display priority of the instrument image to be displayed on the display unit 30 based on the instrument priority information 214, and proceeds to step S250.

  In step S250, the display control unit 23 generates an image signal for displaying an instrument image on the display unit 30 based on the display priority information. The display unit 30 changes the display mode of the instrument image based on the image signal. The control device 20 ends the process shown in FIG. 8 when the display mode of the display unit 30 is controlled.

  The operation of the present embodiment is summarized as follows. When the operator turns on the key switch, the wheel excavator 100 is activated. As shown in FIG. 3, the control device 20 of the wheel excavator 100 displays a meter image on the display unit 30. For example, the control device 20 controls the display unit 30 to display the instrument image based on the display priority stored at the previous work. The display unit 30 displays, for example, a fuel fuel gauge image as the instrument image 31a, a cooling water thermometer image as the instrument image 31b, a hydraulic oil thermometer image as the instrument image 31e, and another instrument image 31c. As shown, the meter image 31a representing the fuel fuel gauge is the largest among the needle-type meter images 31a, 31b, 31c.

  The operator can check the state of the wheel excavator 100 from the instrument image displayed on the instrument image display unit 31. The operator can check the surroundings of the wheel excavator 100 from the camera image displayed on the camera image display unit 32 and perform work such as excavation.

  For example, when the position information of the wheel excavator 100 is acquired, the control device 20 determines the display priority of the instrument based on the position information. Here, when the wheel excavator 100 is operating at a work site in the tropical region, the control device 20 identifies the region including the position of the wheel excavator 100 as a tropical region based on the priority table 210 illustrated in FIG. Then, the priority of the cooling water thermometer is determined as 1, and the priority of the hydraulic oil thermometer is determined as 2.

  The display control unit 23 generates an image signal based on the priority and transmits the image signal to the display unit 30. For example, the display control unit 23 generates the image signal so that the size of the cooling water thermometer having the priority 1 is the largest. The display unit 30 changes the display mode of the instrument image based on the image signal.

  FIG. 9 is a diagram illustrating an example of the display screen of the display unit 30 after the image change. The display unit 30 displays the instrument image 31b representing the cooling water thermometer having the priority 1 larger than the instrument image 31a representing the fuel remaining amount system and the other instrument images 31c. The display unit 30 displays the size of the instrument image 31e representing the hydraulic oil thermometer having the priority 2 larger than that before the image change (see FIG. 3). The display unit 30 displays a meter image 31a representing a fuel fuel gauge having a lower priority than a meter image 31b representing a cooling water thermometer smaller than a meter image 31b representing a cooling water thermometer. In FIG. 9, the instrument image 31b has a large size, the instrument image 31a has a medium size, and the instrument image 31c has a small size. Note that instrument images representing needle-type analog meters have poor visibility if the display size is made too small based on priority. If the visibility is poor, other display formats such as digital numerical formulas and segment formulas are used. Can be changed.

  The display unit 30 alerts the operator by efficiently displaying a large amount of information in a limited display area based on the priority. The operator can recognize a high-priority instrument image by viewing the instrument image changed according to the priority.

According to the embodiment described above, the following operational effects can be obtained.
(1) The control device 20 of the wheel excavator 100 determines the management information acquisition unit 50 that acquires the management information of the wheel excavator 100 and the display priority of the instrument image displayed on the display unit 30 based on the management information. A priority determination unit 22 and a display control unit 23 that controls the display mode of the instrument image based on the priority determined by the priority determination unit 22 are provided. The management information acquisition unit 50 includes a position information acquisition unit 60 that acquires position information of the wheel excavator 100 and a warning information generation unit 70 that generates warning information of the wheel excavator 100. The management information includes position information acquired by the position information acquisition unit 60 and warning information generated by the warning information generation unit 70. Since it did in this way, according to the positional information and warning information which are the management information of the wheel excavator 100, the visibility of the information which wants to raise alertness can be raised. The operator can surely recognize the vehicle body state and can take an appropriate response.

(2) The warning information generation unit 70 includes an operation time calculation unit 74 that calculates an operation time of the wheel excavator 100, an abnormality determination unit 72 that determines occurrence of an abnormality in the wheel excavator 100, information about the abnormality, and information about the operation time. And an abnormality history storage unit 71 that stores abnormality history information in association with each other, and an exchange time acquisition unit 73 that acquires the replacement time of parts of the wheel excavator 100. The warning information generation unit 70 generates warning information based on the abnormality history information and the exchange time. Since it did in this way, the warning information regarding the abnormality which wants to raise alertness can be produced | generated based on abnormality history information and exchange time.
(3) The display control unit 23 changes the display mode such as the display size and display format of the instrument image displayed on the display unit 30 based on the priority determined by the priority determination unit 22. Since it did in this way, the visibility of the information which wants to raise alertness can be raised, displaying many information simultaneously on the limited display space.

(Second Embodiment)
With reference to FIG. 10, the control system 120 of the working machine which concerns on 2nd Embodiment is demonstrated. In the figure, the same or corresponding parts as those in the first embodiment are denoted by the same reference numerals, and differences will mainly be described. FIG. 10 is a block diagram illustrating a configuration of the control system 120 according to the second embodiment. The second embodiment is different from the first embodiment mainly in that the management information of the wheel excavator 100 is collected and the priority of display is determined by the external server 90.

  The control device 20 </ b> B of the wheel excavator 100 includes a management information acquisition unit 50, a management information transmission unit 25, a priority information reception unit 26, and a display control unit 23. The control device 20B is connected to the server 90 via the network 130 using wireless communication or the like. The server 90 includes a management information reception unit 95, a management information collection unit 80, a priority list storage unit 21, a priority determination unit 22, and a priority information transmission unit 96. The server 90 can receive and accumulate management information for a plurality of wheel excavators 100. In the second embodiment, since the server 90 manages the management information of the wheel excavator 100 and the priority table 210, the storage capacity of the control device 20B can be reduced. The server 90 can update the priority table 210 by analyzing the management information collected from the plurality of wheel excavators 100. The control device 20B and the server 90 may be connected not via the network 130 but via a storage medium or the like.

  The management information collection unit 80 collects management information of the wheel excavator 100 acquired by the control device 20B. The replacement time management unit 83 stores and manages the replacement time of parts acquired by the replacement time acquisition unit 73. The operation time management unit 84 stores and manages the operation time of the wheel excavator 100 calculated by the operation time calculation unit 74. The position information management unit 85 stores and manages the position information of the wheel excavator 100 acquired by the position information acquisition unit 60.

  FIG. 11 is a flowchart illustrating an example of processing executed in the control system 120. FIG. 11A shows processing executed in the control device 20B, and FIG. 11B shows processing executed in the server 90. The process shown in the flowchart of FIG. 11 is a process for determining the display priority of the instrument image based on the position information of the wheel excavator 100.

  In step S300, the control device 20B acquires the position information of the wheel excavator 100, and proceeds to step S310. In step S310, the control device 20B transmits management information including position information to the server 90 via the management information transmission unit 25, and the process proceeds to step S320.

  In step S400, the server 90 receives the management information of the wheel excavator 100 via the management information receiving unit 95, and proceeds to step S410. In step S <b> 410, the server 90 stores the position information of the wheel excavator 100 in the position information management unit 85. The server 90 acquires the instrument priority information about the area where the wheel excavator 100 is located, and proceeds to step S420.

  In step S420, the server 90 determines the display priority of the instrument image to be displayed on the display unit 30 based on the instrument priority information, and proceeds to step S430. In step S <b> 430, the server 90 transmits the determined display priority information to the control device 20 </ b> B via the priority information transmission unit 96.

  In step S320, the control device 20B receives priority information via the priority information receiving unit 26, and proceeds to step S330. In step S330, the control device 20B generates an image signal for displaying an instrument image on the display unit 30 based on the priority information. The control device 20B outputs the generated image signal to the display unit 30. The display unit 30 changes the display mode of the instrument image based on the image signal. When the display mode of the display unit 30 is controlled, the control system 120 ends the process shown in FIG.

  FIGS. 12A and 12B are flowcharts showing another example of processing executed in the control device 20B and the server 90. FIG. The process shown in the flowchart of FIG. 12 is a process for determining the display priority of the instrument image based on the warning information of the wheel excavator 100.

  In step S500, the control device 20B acquires abnormality information of the wheel excavator 100, and proceeds to step S510. In step S510, the control device 20B transmits management information of the wheel excavator 100 including abnormality information, replacement time information, and operation time information to the server 90, and the process proceeds to step S520.

  In step S600, the server 90 receives the management information of the wheel excavator 100, and proceeds to step S610. In step S <b> 610, the server 90 stores the replacement time information in the replacement time management unit 83 and stores the operation time information in the operation time management unit 84. The server 90 stores the abnormality information and the operating time information when the abnormality is detected in the abnormality history storage unit 71. The server 90 determines whether or not an abnormality has occurred a predetermined time earlier than the regular replacement time. If the server 90 determines that no abnormality has occurred a predetermined time earlier than the regular replacement time, the server 90 ends the process shown in FIG. If the server 90 determines that an abnormality has occurred a predetermined time earlier than the regular replacement time, the server 90 proceeds to step S620.

  In step S620, the server 90 generates warning information of the wheel excavator 100 based on the abnormality information, and proceeds to step S630. In step S630, the server 90 acquires the instrument priority information about the warning generated in the wheel excavator 100, and proceeds to step S640.

  In step S640, the server 90 determines the display priority of the instrument image to be displayed on the display unit 30 based on the instrument priority information, and proceeds to step S650. In step S650, the server 90 transmits the determined display priority information to the control device 20B.

  In step S520, when the priority information is not received, the control device 20B ends the process illustrated in FIG. When the priority information is received, the control device 20B proceeds to step S530. In step S530, the control device 20B generates an image signal based on the priority information. The control device 20B outputs the generated image signal to the display unit 30. The display unit 30 changes the display mode of the instrument image based on the image signal. Control system 120 will complete | finish the process shown in FIG. 12, if the display mode of the display part 30 is controlled.

According to the above-described embodiment, in addition to the same functions and effects as those of the first embodiment, the following functions and effects can be obtained.
(4) The control system 120 of the wheel excavator 100 includes a control device 20B of the wheel excavator 100 and a server 90. The control device 20B of the wheel excavator 100 includes a management information acquisition unit 50 that acquires management information of the wheel excavator 100, a management information transmission unit 25 that transmits management information acquired by the management information acquisition unit to the server 90, and a server 90. The display control unit 23 controls the display mode of the instrument image displayed on the display unit 30 based on the priority information transmitted from the display unit 30. The server 90 includes a priority determination unit 22 that determines the display priority of the instrument image based on the management information transmitted by the management information transmission unit 25, and the priority related to the priority determined by the priority determination unit 22. And a priority information transmission unit 96 that transmits information to the control device 20B of the wheel excavator 100. Since it did in this way, the processing load in the control apparatus 20B can be reduced.

(5) Since the display device of the work machine described in Patent Document 1 can always display only a predetermined instrument image, the operator can display the instrument image display priority every time the number of in-vehicle systems is increased. It is necessary to consider the placement. On the other hand, in the second embodiment, since the server 90 changes the display priority by changing the priority, the burden on the operator can be reduced. Since the server 90 can update the priority, information can be provided quickly in the case of a change in the in-vehicle system.

The following modifications are also within the scope of the present invention, and one or a plurality of modifications can be combined with the above-described embodiment.

(Modification 1)
In embodiment mentioned above, although the example which changes the display mode of the instrument image currently displayed on the display part 30 was demonstrated, based on a priority, the instrument image which was non-displayed may be displayed, A warning icon or the like may be displayed.

(Modification 2)
In the above-described embodiment, the example in which the priority is determined based on the position information has been described. However, the priority is changed not only according to the position information but also according to information on the season, temperature, and humidity of each region. May be.

(Modification 3)
In the embodiment described above, an example in which warning information is generated when an abnormality is detected a predetermined time earlier than the regular replacement time has been described. The warning information may be generated when the number of times is greater than or equal to a predetermined number. In addition, you may make it change the predetermined frequency used as the threshold value for producing | generating warning information based on regional information.

(Modification 4)
In the above-described embodiment, the example in which the sensor unit 40 includes the GPS sensor has been described. However, the position information acquisition unit 60 may include the GPS sensor. The position information acquisition unit 60 can acquire the position information of the wheel excavator 100 by receiving and calculating a GPS signal transmitted from a GPS satellite.

(Modification 5)
In the above-described embodiment, an example in which position information is acquired using a GPS signal has been described. However, position information may be set by an input operation from an operator or a service person. Even when the control device 20 cannot acquire the position information due to the influence of a tunnel or the like, the position information can be acquired by manual setting. In addition, when the language used of the display unit 30 is set, the control device 20 may estimate the operating region based on the set language.

(Modification 6)
In the above-described embodiment, the example in which the control device 20 is applied to the wheel excavator 100 as the work machine has been described. However, the embodiment can be applied to various work machines such as a crawler excavator, a crane, a wheel loader, and a dump truck. .

  Although various embodiments and modifications have been described above, the present invention is not limited to these contents. Other embodiments conceivable within the scope of the technical idea of the present invention are also included in the scope of the present invention.

20 control device, 21 priority list storage unit, 22 priority determination unit, 23 display control unit, 25 management information transmission unit, 30 display unit, 50 management information acquisition unit, 60 position information acquisition unit, 70 warning information generation unit, 71 abnormality history storage unit, 72 abnormality determination unit, 73 replacement time acquisition unit, 74 operation time calculation unit, 90 server, 96 priority information transmission unit, 100 wheel excavator (work machine), 120 control system

Claims (4)

A position information acquisition unit for acquiring position information of the work machine;
A warning information generating unit that generates warning information based on occurrence of an abnormality in the work machine;
A priority determining section for determining the display priority of the instrument image Ru is displayed on the display portion provided on the working machine,
Based on the priority Yu determined by the determination section Sakido, Bei example and a display control unit for controlling the display mode of the instrument image to be displayed on the display unit,
Before SL priority determining unit is configured to identify the areas where the working machine is running on the basis of the position information that will be acquired by the position information acquiring unit, acquires an instrument priority information corresponding to the specified area information In addition, instrument priority information corresponding to the warning information generated by the warning information generation unit is acquired, and the display priority of the instrument image to be displayed on the display unit is determined based on the acquired instrument priority information And
The display control unit switches between an instrument image based on the priority related to the area information determined by the priority determination unit and an instrument image based on the priority related to the warning information determined by the priority determination unit. A control device for a work machine characterized by the above. The work machine control device according to claim 1,
The warning information generation unit
An operation time calculation unit for calculating the operation time of the work machine;
An abnormality determination unit for determining occurrence of abnormality of the work machine;
An abnormality history storage unit for storing abnormality history information in which information on abnormality of the work machine is associated with information on the operation time calculated by the operation time calculation unit ;
A replacement time acquisition unit for acquiring a replacement time of parts of the work machine,
Control device for a working machine and generates a warning information on the basis of the exchange-time acquired by and stored before Symbol error history storage unit the abnormality history information the exchange time acquisition unit. The work machine control device according to claim 1,
The display controller, on the basis of the priority determining unit Sakido excellent determined by the control device for a working machine, characterized in that to change the display mode of the instrument images displayed on the display unit. A work machine control system including a work machine control device and a server,
The control device of the work machine is
A position information acquisition unit for acquiring position information of the work machine;
A management information transmitting unit that transmits the position information acquired by the position information acquiring unit to the server;
A display control unit that controls a display mode of an instrument image to be displayed on a display unit provided in the work machine,
The server
A warning information generating unit that generates warning information based on occurrence of an abnormality in the work machine;
Based on the location information transmitted by the management information transmitting unit, the region where the work machine is operating is specified, instrument priority information corresponding to the specified region information is acquired, and the warning information generating unit A priority determination unit that acquires instrument priority information corresponding to the generated warning information and determines a display priority of the instrument image to be displayed on the display unit based on the acquired instrument priority information;
A priority information transmission unit that transmits priority information related to the priority determined by the priority determination unit to the control device of the work machine,
The display control unit of the control device for the work machine is transmitted from the instrument image based on the priority information related to the regional information transmitted from the priority information transmission unit of the server and the priority information transmission unit of the server. Switch and display instrument images based on priority information about warning information
A control system for a working machine.

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