Work Support System

Abstract

Provided is a work assisting system that is capable of enhancing the user-friendliness regarding the operation of a work machine (1).　The present invention provides a work assisting system that assists in setting work of a work machine (1), the work assisting system including: an authentication unit (44) that authenticates a user who operates the work machine (1); a storage device (47a) that stores, in advance, correspondence data in which user information, a user language, and setting information of the work machine (1) set by the user are associated with each other; and a setting unit (55) that acquires, from the storage device (47a), the user language and the setting information of the work machine (1) corresponding to information of the user authenticated by the authentication unit (44) and that sets the acquired information.

Description

[Technical Field]

[0001] The present invention relates to a work support system that supports, for example, setting work for a work machine. [Background technology]

[0002] Patent Document 1 describes a management system including a tractor to which a work implement can be attached and a management server. The management server has an information table that stores tractor model number information, the owner of the tractor, and work setting information in advance, all associated with each other. In this management system, the management server identifies the tractor owner based on the tractor model number information, selects work setting information corresponding to the identified owner from the information table, and transmits this information directly to the work implement. The work implement receives and sets the work setting information transmitted from the management server. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Publication No. 2020-154783 Summary of the Invention [Problem to be solved by the invention]

[0004] In Patent Document 1, it is assumed that the tractor owner will drive the tractor, and does not take into consideration the case where a user other than the owner drives the tractor. In other words, it is not possible to set work setting information corresponding to a user other than the owner in the work implement. This results in a problem of insufficient convenience in operating the work implement.

[0005] In view of the above problems, the present invention has an object to provide a work assistance system that can improve the convenience of operating a work machine. [Means for solving the problem]

[0006] The technical means of the present invention for solving this technical problem is characterized by the following points.

[0007] A task assistance system according to one aspect of the present invention includes: A work machine and a server are provided, A work assistance system that assists with work setting work for a work machine, comprising: an authentication unit that authenticates a user who operates the work machine; a storage device that pre-stores correspondence data that associates information about the user, the language of the user, and setting information about the work machine set by the user; and a setting unit that acquires from the storage device and sets the language of the user and setting information about the work machine that correspond to the information about the user authenticated by the authentication unit. The work machine includes the authentication unit, a first communication device that transmits information of the user authenticated by the authentication unit to the server, and the setting unit, and the server includes the storage device, a second communication device, and a control device that identifies the user's language and setting information of the work machine corresponding to the user information received from the first communication device based on the correspondence data and transmits the identified language and setting information of the work machine by the second communication device, and the setting unit of the work machine sets the user's language and setting information of the work machine received by the first communication device, and the work machine includes an information input device into which information regarding theft prevention is input. and a user determination unit that determines whether or not input information input to the information input unit matches predetermined registration information for theft prevention, and determines that the user is an authorized user if the input information matches the registration information, and determines that the user is not an authorized user if the input information does not match the registration information, wherein the first communication device transmits information of the user authenticated by the authentication unit to the server when it is determined by the user determination unit that the user is an authorized user, and does not transmit information of the user authenticated by the authentication unit to the server when it is determined by the user determination unit that the user is not an authorized user. .

[0009] The mobile terminal may include a request unit that requests setting information of the work machine, an acquisition unit that acquires information about the user and the user's language, and a third communication device that transmits data that associates the setting information of the work machine requested and acquired by the request unit with the user's information and the user's language acquired by the acquisition unit as the correspondence data.

[0010] The mobile terminal may be equipped with a display device, and the request unit may cause the third communication device to transmit a first request signal requesting setting information of the work machine to the work machine, and the display device may display the received setting information of the work machine when the third communication device receives the setting information of the work machine.

[0011] The acquisition unit may acquire the user information and the user language input into the mobile terminal, or the user information and the user language pre-stored in the mobile terminal, and the display device may display the correspondence data that associates the setting information of the work machine received by the third communication device with the user information and the user language acquired by the acquisition unit.

[0012] The work machine may be equipped with a biometric information acquisition device that acquires biometric information of the user when the user gets on the work machine, and the authentication unit may authenticate the user based on the biometric information acquired by the biometric information acquisition device.

[0013] The biometric information acquisition device may include an imaging device that captures the face of the user operating the work machine, a voice input device that inputs the vocalizations of the user operating the work machine, or a fingerprint acquisition device that acquires the fingerprint of the user operating the work machine.

[0015] A work assistance system according to one aspect of the present invention is a work assistance system that includes a work machine and a server and assists in setting work of the work machine, and includes an authentication unit that authenticates a user who operates the work machine, a storage device that pre-stores correspondence data that associates information about the user, the language of the user, and setting information of the work machine set by the user, and a setting unit that acquires from the storage device and sets the language of the user and the setting information of the work machine that correspond to the information of the user authenticated by the authentication unit, The work machine is the authentication unit, a first communication device that transmits information of a user authenticated by the authentication unit to the server, and the setting unit; A vehicle body having a traveling device, and a coupling part provided on the vehicle body to which a working device is coupled, The server includes the storage device, a second communication device, and a control device that identifies the user's language and the setting information of the work machine corresponding to the user information received from the first communication device based on the correspondence data and transmits the identified language and setting information of the work machine by the second communication device, and the setting unit of the work machine sets the user's language and the setting information of the work machine received by the first communication device, The first communication device does not transmit information about the other user authenticated by the authentication unit to the server even if the other user gets on the work machine while the work machine is being worked on and the other user is authenticated by the authentication unit. 。

[0016] The phrase "working with the working device" may include at least one of a state in which the working device is located at a working position and performing ground work, and a state in which the vehicle body is automatically steered along a planned travel line.

[0017] A work assistance system according to one aspect of the present invention is a work assistance system that includes a work machine and a server, and assists in setting work for the work machine, the work assistance system including an authentication unit that authenticates a user who operates the work machine, a storage device that pre-stores correspondence data that associates information about the user, the language of the user, and setting information for the work machine that the user has set, and a storage device that stores, in advance, correspondence data that associates information about the user, the language of the user, and setting information for the work machine that the user has set, authenticated by the authentication unit. and a setting unit that acquires from the storage device and sets the user's language and setting information of the work machine corresponding to user information, the work machine comprising the authentication unit, a first communication device that transmits information of the user authenticated by the authentication unit to the server, and the setting unit, the server comprising the storage device, a second communication device, and a control device that identifies the user's language and setting information of the work machine corresponding to the user information received from the first communication device based on the correspondence data and transmits the identified language and setting information of the work machine by the second communication device, the setting unit of the work machine sets the user's language and setting information of the work machine received by the first communication device,The storage device stores, as the correspondence data, field management data that associates a field shown on a field map with a manager of the field, the language of the manager, and setting information of the work machine set by the manager, the work machine comprising a vehicle body having a traveling device and a positioning device that acquires positioning information indicating the position of the vehicle body, the first communication device transmits the positioning information to the server along with information of the user, the control device identifies a field that matches the positioning information received by the second communication device based on the correspondence data, identifies the manager of the identified field, and, if the identified manager matches a user indicated by the user information received by the second communication device, causes the second communication device to transmit the language of the identified manager and the setting information of the work machine to the work machine, and if the identified manager does not match a user indicated by the user information received by the second communication device, does not cause the second communication device to transmit the user language corresponding to the received user information and the setting information of the work machine to the work machine 。

[0018] The first communication device may transmit the positioning information to the server every time a predetermined period has elapsed, and when the position of the vehicle indicated by the positioning information moves from the position of the first field or a position that is not a field indicated by the field map to a position within a second field, the control device may cause the second communication device to transmit a second request signal requesting information about the user operating the work machine, determine whether the user information transmitted from the work machine in response to the second request signal matches the manager of the second field, and if the user information does not match the manager, cause the second communication device to transmit a warning signal, and if the user information matches the manager, cause the second communication device to transmit the language of the manager associated with the second field and the setting information of the work machine from the second communication device. [Effects of the Invention]

[0019] According to the present invention, it is possible to improve the convenience of operating a work machine. [Brief explanation of the drawings]

[0020] [Figure 1]1 is a diagram illustrating a work support system according to a first embodiment. [Figure 2] FIG. 2 is a diagram illustrating the configuration of a transmission. [Figure 3A] FIG. [Figure 3B] FIG. 2 is a diagram showing an example of a planned travel line in a farm field. [Figure 4] FIG. 10 is a diagram illustrating an example of a work setting screen. [Figure 5] FIG. 4 is a diagram showing setting information for each user stored in a storage device of the work machine. [Figure 6A] FIG. 3 is a diagram illustrating an example of registration information registered in the server of the first embodiment. [Figure 6B] FIG. 10 is a diagram illustrating an example of registration information registered in a server according to the second embodiment. [Figure 7A] FIG. 2 is a diagram showing a processing flow in the work support system of the first embodiment. [Figure 7B] FIG. 10 is a diagram illustrating an example of a display screen of a mobile terminal. [Figure 8] 4 is a flowchart showing processing in a work machine of the work assistance system of the first embodiment. [Figure 9] 4 is a flowchart showing processing in a server of the work support system of the first embodiment. [Figure 10] FIG. 10 is a diagram showing a work support system according to a modified example. [Figure 11] 10 is a flowchart showing processing in a work machine of a modified work assistance system. [Figure 12] 10 is a flowchart showing processing in a work machine of a work assistance system according to a second embodiment. [Figure 13] 10 is a flowchart showing processing in a server of the work support system of the second embodiment. [Figure 14] 10 is a flowchart showing processing in a server of the work support system according to the third embodiment. [Figure 15] FIG. 2 is a side view of the working machine (tractor). DETAILED DESCRIPTION OF THE INVENTION

[0021] Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

[0022] [First embodiment] 1 is a diagram showing a work support system in the first embodiment. The work support system in the first embodiment includes a work machine 1, a server 47, and a mobile terminal 48, and supports the setting work of the work machine 1. The work machine 1 is an agricultural machine such as a tractor, combine harvester, or rice transplanter, or a construction machine such as a loader or backhoe.

[0023] Below, the working machine 1 will be described using a tractor as an example. As mentioned above, the working machine 1 is not limited to a tractor, and therefore components common to agricultural machines such as combine harvesters and rice transplanters, and construction machines such as loaders and backhoes can be replaced. In other words, the description of a tractor can be replaced with other agricultural machines or construction machines.

[0024] FIG. 15 is a side view of a work machine 1 (tractor). As shown in FIG. 15, the work machine 1 (tractor) includes a body 3 having a traveling device 7, a prime mover 4, and a transmission 5. The traveling device 7 is a device having front wheels 7F and rear wheels 7R. The front wheels 7F may be of either a tire type or a crawler type. The rear wheels 7R may also be of either a tire type or a crawler type. The prime mover 4 is an internal combustion engine such as a gasoline engine or a diesel engine, an electric motor, or the like. In this embodiment, the prime mover 4 is a diesel engine.

[0025] The transmission 5 is capable of changing the propulsion force of the traveling device 7 by changing the speed, and is also capable of switching between forward and reverse travel of the traveling device 7. A cabin 9 is provided in the machine body 3. A driver's seat 10 is provided inside the cabin 9.

[0026] A connecting part 8A is provided at the rear of the machine body 3. A working implement 2 can be attached and detached to the connecting part 8A. In this embodiment, the connecting part 8A is a lifting device 8 that raises and lowers the attached working implement 2. The working implement 2 is a tilling implement for tilling, a fertilizer spreader for spreading fertilizer, a pesticide spreader for spreading pesticide, a harvesting implement for harvesting, a reaping implement for reaping grass or the like, a spreading implement for spreading grass or the like, a grass collecting implement for collecting grass or the like, a shaping implement for shaping grass or the like, or the like.

[0027] Fig. 2 is a configuration diagram of the transmission 5. As shown in Fig. 2, the transmission 5 includes a main shaft (propeller shaft) 5a, a shuttle unit 5b, a main transmission unit 5c, an auxiliary transmission unit 5d, a PTO (Power take-off) power transmission unit 5e, and a front transmission unit 5f. The propeller shaft 5a is rotatably supported in a housing case of the transmission 5, and power is transmitted from the crankshaft of the prime mover 4 to the propeller shaft 5a.

[0028] The shuttle unit 5b has a shuttle shaft 5b1 and a forward / reverse switching unit 5b2. Power is transmitted from the propeller shaft 5a to the shuttle shaft 5b1. The forward / reverse switching unit 5b2 is formed, for example, by a hydraulic clutch or the like, and switches the rotation direction of the shuttle shaft 5b1, i.e., the forward and reverse movement of the work machine 1, by engaging and disengaging the hydraulic clutch.

[0029] The main transmission unit 5c is a continuously variable transmission mechanism that continuously changes the input power. The continuously variable transmission mechanism includes a hydraulic pump 5c1, a hydraulic motor 5c2, and a planetary gear mechanism 5c3. The hydraulic pump 5c1 is rotated by power from the output shaft 5b3 of the shuttle unit 5b. The hydraulic pump 5c1 is, for example, a variable displacement pump having a swash plate 12, and the flow rate of hydraulic oil discharged from the hydraulic pump 5c1 can be changed by changing the angle (swash plate angle) of the swash plate 12. The hydraulic motor 5c2 is a motor that is rotated by the hydraulic oil discharged from the hydraulic pump 5c1 via an oil passage circuit such as piping. The rotation speed of the hydraulic motor 5c2 can be changed by changing the swash plate angle of the hydraulic pump 5c1 or by changing the power input to the hydraulic pump 5c1.

[0030] Planetary gear mechanism 5c3 is a mechanism made up of a plurality of gears and power transmission shafts such as an input shaft and an output shaft, and includes input shaft 13 to which the power of hydraulic pump 5c1 is input, input shaft 14 to which the power of hydraulic motor 5c2 is input, and output shaft 15 that outputs the power. Planetary gear mechanism 5c3 combines the power of hydraulic pump 5c1 and the power of hydraulic motor 5c2 and transmits the combined power to output shaft 15.

[0031] Therefore, according to main transmission unit 5c, the power output to sub transmission unit 5d can be changed by changing the swash plate angle of swash plate 12 of hydraulic pump 5c1, the rotation speed of prime mover 4, etc. Note that main transmission unit 5c is configured as a continuously variable transmission mechanism, but may also be a stepped transmission mechanism that changes speed using gears.

[0032] The sub-transmission unit 5d is a transmission mechanism having a plurality of gears (cogwheels) that change the speed of power. By appropriately changing the engagement (meshing) of the plurality of gears, the sub-transmission unit 5d changes and outputs (changes the speed of) the power input to the sub-transmission unit 5d from the output shaft 15 of the planetary gear mechanism 5c3. The sub-transmission unit 5d includes an input shaft 5d1, a first speed-change clutch 5d2, a second speed-change clutch 5d3, and an output shaft 5d4. The input shaft 5d1 is the shaft to which the power of the output shaft 15 of the planetary gear mechanism 5c3 is input, and inputs the input power to the first speed-change clutch 5d2 and the second speed-change clutch 5d3 via gears and the like. The input power is changed and output to the output shaft 5d4 by switching between engagement and disengagement of the first speed-change clutch 5d2 and the second speed-change clutch 5d3. The power output to the output shaft 5d4 is transmitted to the rear wheel differential device 20R. The rear wheel differential device 20R rotatably supports a rear axle 21R to which the rear wheel 7R is attached.

[0033] The PTO power transmission unit 5e has a PTO clutch 5e1, a PTO propeller shaft 5e2, and a PTO speed change unit 5e3. The PTO clutch 5e1 is configured, for example, with a hydraulic clutch, and switches between a state in which the power of the propeller shaft 5a is transmitted to the PTO propeller shaft 5e2 (connected state) and a state in which the power of the propeller shaft 5a is not transmitted to the PTO propeller shaft 5e2 (disconnected state) by engaging or disengaging the hydraulic clutch. The PTO speed change unit 5e3 includes a speed change clutch and multiple gears, and changes and outputs the power (rotation speed) input from the PTO propeller shaft 5e2 to the PTO speed change unit 5e3. The power of the PTO speed change unit 5e3 is transmitted to the PTO shaft 16 via gears, etc.

[0034] The front transmission unit 5f has a first front transmission clutch 5f1 and a second front transmission clutch 5f2. The first front transmission clutch 5f1 and the second front transmission clutch 5f2 can transmit power from the auxiliary transmission unit 5d, for example, power from the output shaft 5d4 is transmitted via gears and transmission shafts. The power from the first front transmission clutch 5f1 and the second front transmission clutch 5f2 can be transmitted to the front axle 21F via a front transmission shaft 22. Specifically, the front transmission shaft 22 is connected to a front wheel differential device 20F, and the front wheel differential device 20F rotatably supports the front axle 21F to which the front wheels 7F are attached.

[0035] The first front shift clutch 5f1 and the second front shift clutch 5f2 are configured with hydraulic clutches or the like. An oil passage is connected to the first front shift clutch 5f1, and the oil passage is connected to a control valve 23 to which hydraulic oil discharged from a hydraulic pump is supplied. The first front shift clutch 5f1 is switched between an engaged state and a disengaged state depending on the opening of the control valve 23. An oil passage is connected to the second front shift clutch 5f2, and the oil passage is connected to a control valve 24. The second front shift clutch 5f2 is switched between an engaged state and a disengaged state depending on the opening of the control valve 24. The control valves 23 and 24 are, for example, two-position switching valves with solenoid valves, and are switched between the engaged state and the disengaged state by energizing or deenergizing the solenoid of the solenoid valve.

[0036] When the first front shift clutch 5f1 is disengaged and the second front shift clutch 5f2 is engaged, the power of the auxiliary transmission unit 5d is transmitted to the front wheels 7F via the second front shift clutch 5f2. As a result, the front and rear wheels are driven by power, resulting in four-wheel drive (4WD) and the rotational speeds of the front and rear wheels are approximately the same (4WD constant speed state). On the other hand, when the first front shift clutch 5f1 is engaged and the second front shift clutch 5f2 is disengaged, the vehicle is in four-wheel drive and the rotational speed of the front wheels is faster than the rotational speed of the rear wheels (4WD double speed state). Furthermore, when the first front shift clutch 5f1 and the second front shift clutch 5f2 are engaged, the power of the auxiliary transmission unit 5d is not transmitted to the front wheels 7F, resulting in two-wheel drive (2WD) in which the rear wheels are driven by power.

[0037] FIG. 3A is a perspective view of the lifting device 8. As shown in FIG. 3A, the lifting device 8 (connecting portion 8A) has a lift arm 8a, a lower link 8b, a top link 8c, a lift rod 8d, and a lift cylinder 8e. The front end of the lift arm 8a is supported on the upper rear part of the case (transmission case) that houses the transmission 5 so that it can swing upward or downward. The lift arm 8a swings (lifts up and down) when driven by the lift cylinder 8e. The lift cylinder 8e is made up of a hydraulic cylinder. The lift cylinder 8e is connected to a hydraulic pump via a control valve 34. The control valve 34 is an electromagnetic valve or the like, and extends and retracts the lift cylinder 8e.

[0038] The front end of lower link 8b is supported on the rear lower part of transmission 5 so as to be swingable upward or downward. The front end of top link 8c is supported on the rear part of transmission 5 above lower link 8b so as to be swingable upward or downward. Lift rod 8d connects lift arm 8a to lower link 8b. The working device 2 is connected to the rear part of lower link 8b and the rear part of top link 8c. When lift cylinder 8e is driven (extends and retracts), lift arm 8a rises and falls, and lower link 8b, which is connected to lift arm 8a via lift rod 8d, rises and falls. As a result, the working device 2 swings upward or downward (lifts and falls) with the front part of lower link 8b as a fulcrum.

[0039] The lifting device 8 is provided with an attitude changing device 25. The attitude changing device 25 is a device that changes the attitude of the working device 2 attached to the machine body 3. The attitude changing device 25 has a changing cylinder 25a made up of a hydraulic cylinder, and a control valve 25b. The changing cylinder 25a is connected to a hydraulic pump via the control valve 25b. The control valve 25b is an electromagnetic valve or the like, and extends and retracts the changing cylinder 25a. The changing cylinder 25a connects the lift arm 8a and the lower link 8b.

[0040] As shown in FIG. 1, the work implement 1 has a plurality of hydraulic control valves 27. The plurality of hydraulic control valves 27 are hydraulic switching valves to which hydraulic oil is supplied from a hydraulic pump 28. The plurality of hydraulic control valves 27 have output ports, and hydraulic hoses and the like can be connected to any of the output ports. By connecting a hydraulic hose connected to any of the output ports of the hydraulic control valves 27 to a hydraulic attachment of the work implement 2, it is possible to operate various hydraulic attachments attached to the work implement 2.

[0041] The steering device 11 includes a steering wheel 11a, a rotating shaft 11b (steering shaft) that rotates with the rotation of the steering wheel 11a, and an assist mechanism (power steering mechanism) 11c that assists in steering the steering wheel 11a. The assist mechanism 11c includes a control valve 35 and a steering cylinder 32. The control valve 35 is, for example, a three-position switching valve that can be switched by moving a spool or the like. The control valve 35 can also be switched by steering the steering shaft 11b. The steering cylinder 32 is connected to an arm (knuckle arm) 36 that changes the direction of the front wheels 7F. Therefore, when the steering wheel 11a is operated, the switching position and opening of the control valve 35 are switched in accordance with the steering wheel 11a. The steering cylinder 32 extends or retracts left or right depending on the switching position and opening of the control valve 35, thereby changing the steering direction of the front wheels 7F. Note that the above-described steering device 11 is merely an example and is not limited to the above-described configuration.

[0042] 1, the work machine 1 is equipped with a plurality of detection devices 41. The plurality of detection devices 41 are devices that detect the state of the work machine 1, and include, for example, a water temperature sensor 41a that detects water temperature, a fuel sensor 41b that detects the remaining amount of fuel, a prime mover rotation sensor (rotation sensor) 41c that detects the rotation speed of the prime mover 4, an accelerator pedal sensor 41d that detects the amount of operation of the accelerator pedal, a steering angle sensor 41e that detects the steering angle of the steering device 11, an angle sensor 41f that detects the angle of the lift arm 8a, an inclination detection sensor 41g that detects the inclination of the width direction (rightward or leftward) of the machine body 3, a speed sensor 41h that detects the vehicle speed (velocity) of the machine body 3, a PTO rotation sensor (rotation sensor) 41i that detects the rotation speed of the PTO shaft, a battery sensor 41j that detects the voltage of a storage battery such as a battery, and a positioning sensor (positioning device) 41k that detects the position of the machine body 3 based on signals from a positioning satellite or the like.

[0043] The positioning device 41k can detect its own position (positioning information including latitude and longitude) using a satellite positioning system (positioning satellite) such as D-GPS, GPS, GLONASS, Beidou, Galileo, or Michibiki. That is, the positioning device 41k receives satellite signals (position of the positioning satellite, transmission time, correction information, etc.) transmitted from the positioning satellites, and detects the position (e.g., latitude and longitude) of the work implement 1, i.e., the vehicle position, based on the satellite signals. The positioning device 41k has a receiving device and an inertial measurement unit (IMU). The receiving device is a device that has an antenna and the like and receives satellite signals transmitted from the positioning satellites, and is attached to the vehicle body 3 separately from the inertial measurement unit. In this embodiment, the receiving device is attached to the vehicle body 3. Note that the attachment location of the receiving device is not limited to that described in the embodiment.

[0044] The inertial measurement unit has an acceleration sensor that detects acceleration, a gyro sensor that detects angular velocity, etc. It is installed in the aircraft 3, for example, below the driver's seat 10, and can detect the roll angle, pitch angle, yaw angle, etc. of the aircraft 3.

[0045] The speed sensor 41h detects the vehicle speed by converting, for example, the rotation speed of the front axle 21F, the rotation speed of the rear axle 21R, the rotation speed of the front wheels 7F, the rotation speed of the rear wheels 7R, etc. into vehicle speed. The speed sensor 41h can also detect the rotation direction of any of the front axle 21F, the rear axle 21R, the front wheels 7F, and the rear wheels 7R, and can also detect whether the work machine 1 (machine body 3) is moving forward or backward. The detection device 41 described above is an example, and is not limited to the above-mentioned sensor.

[0046] The work machine 1 also includes a plurality of operating members (operating devices) 42. The plurality of operating members 42 include a shuttle lever 42a for switching between forward and reverse travel of the machine body 3, an ignition switch 42b for starting the prime mover 4, a PTO speed change lever 42c for setting the rotation speed of the PTO shaft, a speed change switch 42d for switching between automatic and manual speed change, a speed change lever 42e for manually changing the gear stage (speed change level) of the transmission 5, an accelerator 42f for increasing or decreasing the vehicle speed, a lift switch 42g for operating the lifting device 8 to raise or lower it, a height setting dial 42h for setting the upper limit of the lifting device 8, a vehicle speed lever 42i for setting the vehicle speed, a hydraulic operating tool 42j, and a rotation setting tool 42k for setting the upper limit of the prime mover rotation speed.

[0047] Setting tools such as the speed change switch 42d, height setting dial 42h, and rotation setting tool 42k are provided in a console box provided on the side of the driver's seat 10. The driver can set the operation of the machine body 3 by operating the setting tools (speed change switch 42d, height setting dial 42h, and rotation setting tool 42k). Note that the above-described operating members 42 are merely examples, and are not limited to those described above.

[0048] As shown in Fig. 1, the work machine 1 has a control device 50. The control device 50 is a device that performs overall control of the work machine 1. The control device 50 is a CPU, an electric and electronic circuit, etc., and is configured from a control program etc. installed in a storage device 54.

[0049] The work machine 1 has multiple machine control devices 40. The machine control devices 40 are devices that perform various controls of the work machine 1 (machine body 3), and are CPUs, electrical and electronic circuits, etc. The machine control devices 40 have a storage device 43 that stores various information, such as control programs and identification information. The storage device 43 is composed of non-volatile memory, etc. In other words, the multiple machine control devices 40 are electrical components equipped with storage devices 43.

[0050] The multiple machine body control devices 40 include a speed change control device 40A, an engine control device 40B, a PTO control device 40C, a lift control device 40D, an automatic steering control device 40E, an attitude control device 40F, and an auxiliary hydraulic control device 40G. Note that the machine body control device 40 does not need to include all of the speed change control device 40A, the engine control device 40B, the PTO control device 40C, the lift control device 40D, the automatic steering control device 40E, the attitude control device 40F, and the auxiliary hydraulic control device 40G, and it is sufficient if they are provided in accordance with the specifications of the work machine 1.

[0051] In addition, the transmission control device 40A, the engine control device 40B, the PTO control device 40C, the lift control device 40D, the automatic steering control device 40E, the attitude control device 40F and the auxiliary hydraulic control device 40G may be provided in an integrated control device 50.

[0052] The transmission control device 40A performs transmission control. When the automatic transmission function is enabled, the transmission control automatically switches between the main transmission unit 5c and the sub transmission unit 5d depending on the state of the work machine 1, and automatically changes the gear stage (speed change level) of the transmission 5 to a predetermined gear stage (speed change level). When the transmission change switch 42d is switched to manual transmission, the transmission control automatically switches between the main transmission unit 5c and the sub transmission unit 5d depending on the gear stage (speed change level) set by the shift lever 42e, and changes the gear stage of the transmission 5.

[0053] The transmission control device 40A controls (travel switching control) the travel drive state of the traveling device 7 (the operation of the traveling device 7). In the travel switching control, when the shuttle lever 42a is operated to forward, the forward / reverse switching unit 5b2 of the shuttle section 5b is switched to forward, causing the machine body 3 to move forward. In addition, in the travel switching control, when the shuttle lever 42a is operated to reverse, the forward / reverse switching unit 5b2 of the shuttle section 5b is switched to reverse, causing the machine body 3 to move backward.

[0054] In the driving mode switching control, in the case of 4WD, the first front shift-change clutch 5f1 is disengaged and the second front shift-change clutch 5f2 is engaged. In the driving mode switching control, in the case of 4WD double speed, the first front shift-change clutch 5f1 is engaged and the second front shift-change clutch 5f2 is disengaged. In the driving mode switching control, in the case of 2WD, the first front shift-change clutch 5f1 and the second front shift-change clutch 5f2 are engaged.

[0055] The engine control device 40B performs engine control. In engine control, when the ignition switch 42b is turned ON, the engine control starts the prime mover 4 through a predetermined process, and when the ignition switch 42b is turned OFF, the engine control stops the driving of the prime mover 4. In engine control, when the accelerator 42f is operated, the rotation speed of the prime mover 4 (referred to as prime mover rotation speed) is changed in accordance with the amount of operation of the accelerator 42f, thereby changing the vehicle speed (velocity) of the vehicle 3.

[0056] The PTO control device 40C performs PTO control. In PTO control, when the PTO shift lever 42c is operated, the PTO shift gear built into the transmission 5 is switched to change the rotation speed of the PTO shaft (referred to as PTO rotation speed).

[0057] The lift control device 40D performs lift control. In the lift control, when the manual lift function is enabled and the lift switch 42g is operated in an upward direction (upward side), the control valve 34 is controlled to extend the lift cylinder 8e, thereby lifting the rear end of the lift arm 8a (the end on the working device 2 side). In the lift control, when the manual lift function is enabled and the lift switch 42g is operated in a downward direction (downward side), the control valve 34 is controlled to contract the lift cylinder 8e, thereby lowering the rear end of the lift arm 8a (the end on the working device 2 side). When the working device 2 is being raised by the lift device 8, and the position of the working device 2, i.e., the angle of the lift arm 8a, reaches the upper limit (upper height limit) set by the height setting dial 42h, the lifting operation of the lift device 8 is stopped.

[0058] In the lift control, if the backup function is enabled, when the machine body 3 moves backward, the control valve 34 is automatically controlled to extend the lift cylinder 8e and raise the rear end of the lift arm 8a (the end on the working device 2 side). In the lift control, if the auto-up function is enabled, when the steering angle of the steering device 11 reaches a predetermined value or more, the control valve 34 is automatically controlled to extend the lift cylinder 8e and raise the rear end of the lift arm 8a (the end on the working device 2 side).

[0059] The automatic steering control device 40E performs automatic steering control. When the autosteer function is enabled, the automatic steering control automatically controls the steering angle of the steering device 11 by controlling the control valve 35 so that the position (vehicle position) detected by the positioning device 41k coincides with a predetermined planned travel line L1 (see FIG. 3B). FIG. 3B is a diagram showing an example of the planned travel line L1 in a field H1. A work area A1 where work is performed by the work implement 2 is defined in the field H1. For example, the planned travel line L1 is made up of multiple parallel straight sections L1a defined in the work area A1 and multiple turning sections L1b connecting the ends of adjacent straight sections L1a. The multiple turning sections L1b are defined in a headland area A2, which is within the field H1 and outside the work area A1. The automatic steering control device 40E performs automatic steering control at least in the straight sections L1a. The automatic steering control device 40E may also perform automatic steering control in the turning section L1b.

[0060] The attitude control device 40F performs attitude control. In attitude control, if the position function (fixing function) is selected, a control signal is output to the control valve 25b to fix the length of the changeable cylinder 25a to a predetermined length. That is, the widthwise angle of the working implement 2 set by the attitude change device 25 (the angle of the line connecting the lower links 8b, 8b relative to the horizontal) is fixed. In attitude control, if the horizontal function is selected, a control signal is output to the control valve 25b to extend or retract the changeable cylinder 25a, thereby maintaining the working implement 2 set by the attitude change device 25 horizontal. In attitude control, if the tilt function is selected, a control signal is output to the control valve 25b to extend or retract the changeable cylinder 25a, thereby maintaining the working implement 2 set by the attitude change device 25 parallel to the field (ground).

[0061] The auxiliary hydraulic control device 40G controls auxiliary valves (operation control valves) 27, among the multiple hydraulic control valves 27, to which hydraulic hoses or the like are connected. For example, the auxiliary hydraulic control device 40G controls switching of the flow of hydraulic oil output from a specific hydraulic control valve 27 when a hydraulic operating device 42j, such as a pivotable lever, is operated. For example, when the hydraulic operating device 42j is operated to the left, the auxiliary hydraulic control device 40G excites the solenoid of the specific hydraulic control valve 27, moving the spool of the specific hydraulic control valve 27 to change the flow direction of the hydraulic oil to one direction. On the other hand, when the hydraulic operating device 42j is operated to the right, the auxiliary hydraulic control device 40G excites the solenoid of the specific hydraulic control valve 27, moving the spool of the specific hydraulic control valve 27 to change the flow direction of the hydraulic oil to the other direction. In this way, the hydraulic attachment of the working implement 2 can be operated by the hydraulic control valve 27.

[0062] The work machine 1 is equipped with a first communication device 46. The first communication device 46 is a communication device (communication module) that performs either direct communication or indirect communication with a server 47 or a mobile terminal 48, and can perform wireless communication using, for example, the IEEE802.11 series of communication standards, such as Wi-Fi (Wireless Fidelity, registered trademark), BLE (Bluetooth (registered trademark) Low Energy), LPWA (Low Power, Wide Area), and LPWAN (Low-Power Wide-Area Network). The first communication device 46 may also be a communication device (communication module) that performs wireless communication using a mobile phone communication network, a data communication network, or the like.

[0063] The work machine 1 is equipped with a display device 45. The display device 45 is a device that displays various information related to the work machine 1. The display device 45 is installed around the driver's seat 10 so that the driver can check the displayed content. The display device 45 is a meter panel device that displays driving information, an auxiliary panel device (for example, a touch panel) for performing various settings related to the work machine, etc.

[0064] The work machine 1 is equipped with a storage device 54. The storage device 54 is a non-volatile memory such as an HDD (Hard Disk Drive) or SSD (Solid State Drive). The storage device 54 is a device that stores various information related to the work machine 1. For example, the storage device 54 stores setting information ST of the work machine 1 that is assigned to each predetermined user. As shown in FIG. 5 , which will be described later, the storage device 54 stores setting information ST1 of the work machine 1 for user U1, setting information ST2 of the work machine 1 for user U2, and setting information ST3 of the work machine 1 for user U3.

[0065] The work machine 1 (machine body 3) has an on-board network N1. The on-board network N1 is a network such as CAN (Controller Area Network), LIN (Local Interconnect Network), MOST (Media Oriented System Transport), FlexRay, or ISO11783 (ISOBUS). The on-board network N1 is constructed with various electrical components and is connected to a plurality of machine body control devices 40, a plurality of detection devices 41, a display device 45, a first communication device 46, a storage device 54, and the like.

[0066] FIG. 4 is a diagram showing an example of the work setting screen M9.

[0067] Now, as shown in Fig. 4, when a predetermined touch operation is performed by, for example, the driver, the display device 45 displays a work setting screen M9. The work setting screen M9 is a screen that can display setting information ST of the work machine 1 assigned to each predetermined user. In Fig. 4, setting information ST1 of the work machine 1 of user U1 is selected on the work setting screen M9, and multiple setting items W1 to W8 and their respective contents for this setting information ST1 are displayed.

[0068] First, the setting information ST of the work implement 1 for each user on the work setting screen M9 will be described. The setting information ST of the work implement 1 for each user shown on the work setting screen M9 includes a plurality of setting items. These setting items are items necessary for performing work using the work implement 2, and include, for example, an "elevation setting item W1" that indicates the operation setting of the lifting device 8 when moving forward, an "attitude setting item W2" that indicates the operation setting of the attitude change device 25, a "travel setting item W3" that indicates the operation setting for traveling of the machine body 3, a "rotation upper limit setting item W4" that indicates the upper limit of the prime mover rotation speed, a "double speed setting item W5" that indicates whether or not the rotation speed of the front wheels 7F is increased during turning, etc., an "auto-up item W6" that indicates the operation setting for the second automatic lifting operation, a "backup item W7" that indicates the operation setting for the first automatic lifting operation, and an "automatic transmission setting item W8" that indicates the operation setting for the automatic transmission of the transmission 5. The setting items displayed on the work setting screen M9 are not limited to the items described above, and may be items related to work performed by the work implement 1, such as items for performing work using the work device 2 and items related to the travel of the machine body 3. The work setting screen M9 may display at least one or more of the lift setting item W1, attitude setting item W2, travel setting item W3, upper rotation limit setting item W4, double speed setting item W5, auto-up item W6, backup item W7, and automatic transmission setting item W8, and it is not necessary to display all setting items.

[0069] The item setting information corresponding to the lift setting item W1 is, for example, a manual lift mode (3P position) or an automatic lift mode (3P auto). The item setting information corresponding to the attitude setting item W2 is one of position mode, horizontal mode, and tilt mode. The item setting information corresponding to the travel setting item W3 is one of 4WD, 4WD acceleration, and 2WD. The item setting information corresponding to the upper limit rotation setting item W4 is the upper limit of the motor rotation speed. The item setting information corresponding to the double speed setting item W5 is whether double speed is enabled (on) or disabled (off). The item setting information corresponding to the auto-up item W6 is whether the second automatic lifting operation is enabled (on) or disabled (off). The item setting information corresponding to the backup item W7 is whether the first automatic lifting operation is enabled (on) or disabled (off). The item setting information corresponding to the automatic shift setting item W8 is whether automatic shifting is enabled (on) or disabled (off).

[0070] Fig. 5 is a diagram showing setting information ST1 to ST3 of the work machine 1 for each user stored in the storage device 54 of the work machine 1. As shown in Fig. 5, the storage device 54 stores setting information ST1 to ST3 of the work machine 1 for each user U1 to U3, which associates a plurality of setting items (lift setting item W1, attitude setting item W2, travel setting item W3, upper rotation limit setting item W4, double speed setting item W5, auto-up item W6, backup item W7, automatic shift setting item W8) with the contents of each setting item (3P position, 3P auto, position mode, horizontal mode, tilt mode, 4WD, 4WD speed increase, 2WD, upper limit of motor rotation speed, double speed enabled / disabled, second automatic lifting operation (auto-up) enabled / disabled, first automatic lifting operation (backup) enabled / disabled, automatic shift enabled / disabled).

[0071] The display device 45 displays a user display section 130 and a list display section 131 on the work setting screen M9. The user display section 130 is a section that displays a plurality of predetermined users. The user display section 130 includes a plurality of name display sections 130a, 130b, and 130c. Each of the plurality of name display sections 130a, 130b, and 130c displays a user name. In this embodiment, the name display section 130a indicates the setting information ST1 of the work machine 1 of user U1, the name display section 130b indicates the setting information ST2 of the work machine 1 of user U2, and the name display section 130c indicates the setting information ST3 of the work machine 1 of user U3. Each of the name display sections 130a, 130b, and 130c can be selected by touch operation.

[0072] The list display unit 131 displays the setting information ST of the work machine 1 of a selected user from among the multiple users displayed in the user display unit 130. For example, when the name display unit 130a is selected, the list display unit 131 reads out the setting information ST1 of the work machine 1 of the user U1 from the storage device 54, and displays icons 133 indicating multiple setting items corresponding to the read setting information ST1 of the work machine 1 of the user U1 in sequence on the work setting screen M9, and also displays the contents of the setting items (item setting information) read out from the storage device 54 next to the icons 133 in sequence on the work setting screen M9. That is, the list display unit 131 displays an icon 133a indicating an elevation setting item W1, an icon 133b indicating an attitude setting item W2, an icon 133c indicating a travel setting item W3, an icon 133d indicating an upper rotation limit setting item W4, an icon 133e indicating a speed setting item W5, an icon 133f indicating an auto-up setting item W6, an icon 133g indicating a backup item W7, and an icon 133h indicating an automatic transmission setting item W8. The list display unit 131 also displays the contents of the setting items corresponding to each of the icons 133a to 133h.

[0073] Therefore, when the driver or the like selects one of the multiple name display sections 130a, 130b, 130c, the display device 45 displays the setting information ST of the selected user's work machine 1 on the work setting screen M9. The driver or the like can check each content of the setting information ST of the user's work machine 1 displayed on the display device 45.

[0074] The list display unit 131 includes a change display unit 135. The change display unit 135 is a button image for changing the item setting information. The change display unit 135 can change the item setting information for each setting item, and includes a change unit 135a corresponding to a lift setting item W1, a change unit 135b corresponding to a posture setting item W2, a change unit 135c corresponding to a travel setting item W3, a change unit 135d corresponding to a rotation upper limit setting item W4, a change unit 135e corresponding to a speed setting item W5, a change unit 135f corresponding to an auto-up setting item W6, a change unit 135g corresponding to a backup setting item W7, and a change unit 135h corresponding to an automatic transmission setting item W8. Each of the change units 135a to 135h can be selected by touch operation, and by selecting one of the change units, the item setting information displayed in the list display unit 131 can be changed. For example, selecting change unit 135d changes the upper limit of the motor rotation speed. Also, selecting change unit 135h changes the on / off state of the automatic transmission. Therefore, the setting information ST of the work implement 1 for each user, that is, the item setting information displayed on the work setting screen M9, can be changed.

[0075] The display device 45 has a setting command unit 191. The setting command unit 191 commands the current setting information ST displayed on the work setting screen M9 to be stored (set) in the storage devices 43 of the multiple machine control devices 40. Specifically, when the setting command unit (switch) 191 is touched, the display device 45 commands the current setting information ST to be stored (set) in the storage devices 43 of the multiple machine control devices 40. For example, when the setting information ST of the work machine 1 of the user U1 is displayed on the display device 45 and the setting command unit 191 is touched, the item setting information corresponding to the multiple machine control devices 40 is transmitted and set in the storage devices 43. For example, as shown in FIG. 4, if the lift setting item W1 is the 3P position, "3P position" is set as the item setting information in the storage device 43 of the lift control device 40D. If the attitude setting item W2 is the position mode, "position mode" is set as the item setting information in the storage device 43 of the attitude control device 40F. If the driving setting item W3 is 2WD, "2WD" is set as the item setting information in the storage device 43 of the gear change control device 40A.

[0076] Note that, here, the setting information ST of the user's work machine 1 is set by touching the setting command unit 191, but as will be described later, in the work assistance system of the first embodiment, it is possible to automatically set the setting information ST of the work machine 1 corresponding to the user who has been authenticated in the work machine 1. Details will be described later.

[0077] Next, we will explain the configuration of the mobile terminal 48. The mobile terminal 48 is a mobile terminal such as a tablet, smartphone, PDA, etc. As shown in Fig. 1, the mobile terminal 48 has a request unit 48a, an acquisition unit 48b, a third communication device 48c, and a display device 48d.

[0078] The request unit 48a requests the setting information ST of the work machine 1. The request unit 48a is a CPU, an electric / electronic circuit, etc. For example, the request unit 48a causes the third communication device 48c to transmit a first request signal requesting the setting information ST of the work machine 1 to the work machine 1.

[0079] The acquisition unit 48b acquires user information and a user language. The acquisition unit 48b is a CPU, an electric / electronic circuit, etc. For example, the acquisition unit 48b acquires the user information and a user language input to the mobile terminal 48, or the user information and a user language stored in advance in the mobile terminal 48.

[0080] The third communication device 48c is a communication device (communication module) that performs either direct communication or indirect communication with the work machine 1 or the server 47, and can perform wireless communication using, for example, the IEEE802.11 series of communication standards such as Wi-Fi (Wireless Fidelity, registered trademark), BLE (Bluetooth (registered trademark) Low Energy), LPWA (Low Power, Wide Area), and LPWAN (Low-Power Wide-Area Network).The third communication device 48c may also be a communication device (communication module) that performs wireless communication using a mobile phone communication network, a data communication network, or the like.

[0081] When the third communication device 48c receives the setting information ST of the work machine 1, the display device 48d displays the received setting information ST of the work machine 1. For example, the display device 48d displays correspondence data that associates the setting information ST of the work machine received by the third communication device 48c with the user information and user language acquired by the acquisition unit 48b.

[0082] The third communication device 48c transmits data associating the setting information ST of the work machine 1 requested and obtained by the request unit 48a with the user information and user language acquired by the acquisition unit 48b as association data to the server 47. The server 47 stores this association data as registration information, as described below.

[0083] Here, the configuration of the server 47 will be described. The server 47 is, for example, a fixed computer. Alternatively, the server 47 may be a personal computer. The server 47 includes a storage device 47a, a second communication device 47b, and a control device 47c.

[0084] FIG. 6A is a diagram showing an example of registration information registered in the server 47 of the first embodiment. As shown in FIG. 6A, the storage device 47a of the server 47 pre-stores, as registration information, correspondence data associating user information, the user's language, and the setting information ST of the work machine 1 set by the user. The storage device 47a stores registration information for each user. In FIG. 6A, correspondence data associating "user U1" indicating user information, "Japanese" indicating the user's language, and "setting information ST1" indicating the setting information ST of the work machine 1 set by the user is stored as the registration information of user U1. Furthermore, correspondence data associating "user U2" indicating user information, "English" indicating the user's language, and "setting information ST2" indicating the setting information ST of the work machine 1 set by the user is stored as the registration information of user U2. In addition, correspondence data associating "user U3" indicating the user's information, "Vietnamese" indicating the user's language, and "setting information ST3" indicating the setting information ST of the work machine 1 set by the user is stored as registration information for user U3.

[0085] The second communication device 47b is a communication device (communication module) that performs either direct communication or indirect communication with the work machine 1 or the mobile terminal 48, and can perform wireless communication using, for example, the IEEE802.11 series of communication standards such as Wi-Fi (Wireless Fidelity, registered trademark), BLE (Bluetooth (registered trademark) Low Energy), LPWA (Low Power, Wide Area), and LPWAN (Low-Power Wide-Area Network).The second communication device 47b may also be a communication device (communication module) that performs wireless communication using a mobile phone communication network, a data communication network, or the like.

[0086] The control device 47c of the server 47 identifies the user language and setting information ST of the work machine 1 corresponding to the user information received from the first communication device 46 based on the corresponding data stored in the storage device 47a, and causes the second communication device 47b to transmit them. The control device 47c is a device that performs various controls on the server 47, and is a CPU, an electric and electronic circuit, etc.

[0087] 1, the work machine 1 includes an authentication unit 44, a biometric information acquisition device 49, an on-board sensor 51, and a setting unit 55. The authentication unit 44, the biometric information acquisition device 49, the on-board sensor 51, and the setting unit 55 are connected to an in-vehicle network N1.

[0088] The boarding sensor 51 is a sensor that detects that a user has boarded the work machine 1. The boarding sensor 51 is, for example, a seating sensor that detects that a user has sat in the driver's seat, or a human presence sensor that detects that a user has entered the cabin 9. In this embodiment, the boarding sensor 51 will be described as being a seating sensor.

[0089] The authentication unit 44 authenticates the user who operates the work machine 1. The authentication unit 44 is made up of electric and electronic components, a program installed in a storage device 54, and the like.

[0090] When a user gets on the work machine 1, the biometric information acquisition device 49 acquires the biometric information of the user. The biometric information acquisition device 49 is connected to the authentication unit 44. The biometric information acquisition device 49 outputs the acquired biometric information to the authentication unit 44. The authentication unit 44 authenticates the user based on the biometric information acquired by the biometric information acquisition device 49.

[0091] The biometric information acquisition device 49 includes at least one of an imaging device 49a that captures an image of the face of a user operating the work machine 1, a voice input device 49b to which the voice of the user operating the work machine 1 is input, and a fingerprint acquisition device 49c that captures a fingerprint of the user operating the work machine 1. In the present embodiment, the biometric information acquisition device 49 will be described as including the imaging device 49a. The imaging device 49a is arranged inside the cabin 9 shown in FIG. 15 so that the user seated in the driver's seat 10 (at least the user's face) is within its imaging range. Biometric information acquired by the biometric information acquisition device 49, for example, an image captured by the imaging device 49a (for example, a facial image capturing the user's face), is output to the authentication unit 44.

[0092] The authentication unit 44 performs facial authentication of the user. For example, the storage device 54 stores in advance user registration information that associates the user's facial image with the user's user name. The authentication unit 44 determines whether the captured image from the imaging device 49a matches any of the images in the user's registration information stored in the storage device 54, and if a matching image is found, the user name corresponding to the matching image is identified, and user authentication is terminated. On the other hand, if the captured image does not match any of the images in the user's registration information stored in the storage device 54, the authentication unit 44 does not identify the user name, and the user authentication is terminated as there is no corresponding user.

[0093] The first communication device 46 of the work machine 1 transmits information about the user authenticated by the authentication unit 44 to the server 47.

[0094] The setting unit 55 acquires and sets the user language and setting information ST of the work machine 1 corresponding to the information of the user authenticated by the authentication unit 44 from the storage device 47a of the server 47. More specifically, the first communication device 46 receives the user language and setting information ST of the work machine 1 corresponding to the information of the user authenticated by the authentication unit 44 from the server 47. Then, the setting unit 55 sets the user language and setting information ST of the work machine 1 received by the first communication device 46 in the storage devices 43 of the multiple machine control devices 40, respectively. The setting unit 55 is composed of electric and electronic components, programs installed in the storage device 54, etc.

[0095] Even if a user other than the user authenticated by the authentication unit 44 gets on the work machine 1 while work is being performed by the work device 2 and the other user is authenticated by the authentication unit 44, the first communication device 46 does not transmit information about the other user authenticated by the authentication unit 44 to the server 47.

[0096] The state in which the working device 2 is working includes, for example, at least one of a state in which the working device 2 is located at a working position and performing ground work, and a state in which the machine body 3 (vehicle body) is being automatically steered along the planned travel line L1 (see FIG. 3B). For example, the control device 50 or the lifting control device 40D can determine whether the working device 2 is at a working position based on a detection signal from an angle sensor 41f that detects the angle of the lift arm 8a, and can determine that ground work is being performed when the working device 2 is at the working position. Furthermore, the control device 50 can determine whether the machine body 3 (vehicle body) is being automatically steered along the planned travel line L1 based on whether the automatic steering control device 40E is performing automatic steering control.

[0097] Here, the flow of processing in the work support system of the first embodiment will be described with reference to Fig. 7A. Fig. 7A is a diagram showing the flow of processing in the work support system of the first embodiment.

[0098] The mobile terminal 48 makes a connection request to the work machine 1 (S1A). For example, the request unit 48a causes the third communication device 48c to transmit a first request signal requesting the setting information ST of the work machine 1 to the work machine 1.

[0099] When the work machine 1 receives a connection request from the mobile terminal 48, it transmits vehicle setting information (i.e., setting information ST) to the mobile terminal 48 (S1B). For example, when the work machine 1 receives a first request signal, it transmits to the mobile terminal 48 the vehicle setting information currently set in the work machine 1 (setting information ST of the work machine 1 consisting of multiple setting items W1 to W8 shown in FIG. 4).

[0100] If the first request signal includes user information, the work machine 1 reads the setting information ST of the user from the storage device 54 and transmits it to the mobile terminal 48. Specifically, if user U1 is designated by a touch operation on the mobile terminal 48, a first request signal including user U1 as user information is transmitted. The work machine 1 identifies the setting information ST1 of user U1 shown in FIG. 5 based on the user U1 included in the first request signal, reads the setting information ST1 from the storage device 54, and transmits it to the mobile terminal 48.

[0101] The mobile terminal 48 displays the work machine setting information ST received by the third communication device 48c on the display device 48d (S2). FIG. 7B is a diagram showing an example of a display screen of the mobile terminal 48. Here, it is assumed that the mobile terminal 48 has received the work machine setting information ST1 of the user U1. Therefore, as shown in FIG. 7B, the display device 48d of the mobile terminal 48 displays the received work machine setting information ST1. The user operating the mobile terminal 48 inputs user information (personal information) and the user's language by touching the input units 48d1 and 48d2 of the display device 48d, respectively. The display device 48d displays the user information input into the input unit 48d1 and the user's language input into the input unit 48d2 together with the work machine setting information ST1.

[0102] The mobile terminal 48 transmits to the server 47 correspondence data that associates the user information and user language acquired by the acquisition unit 48b from the input units 48d1 and 48d2 with the received setting information ST1 of the work machine displayed on the display unit 48d (S2A). When the "OK" button 48d3 shown in FIG. 7B is touched, the third communication device 48c transmits the correspondence data to the server 47.

[0103] Here, the user inputs user information and the user's language into the input units 48d1 and 48d2 of the mobile terminal 48, respectively, but this is not limited thereto. For example, if the first request signal includes user U1 as user information, input of the user information is unnecessary, and the acquisition unit 48b acquires the user information (here, user U1) and automatically inputs it into the input unit 48d1. Furthermore, if the setting information ST1 of user U1 shown in FIG. 5 is stored in association with information about the user's language, input of the user's language is also unnecessary, and the acquisition unit 48b acquires the user's language and automatically inputs it into the input unit 48d2. In this case, the mobile terminal 48 simply receives the vehicle setting information, and the acquisition unit 48b of the mobile terminal 48 acquires the user information (user U1), the language of user U1, and the setting information ST1 of user U1 shown in FIG. 5.

[0104] Alternatively, the user of mobile terminal 48 may input information about the work type and information about the field into display device 48d, associate the information with corresponding data, and transmit the information. Mobile terminal 48 may transmit to server 47, as field information, the position information of work machine 1 received from work machine 1 (i.e., the position information of work machine 1 measured by positioning device 41k) or the position information obtained by the GPS function of mobile terminal 48.

[0105] The server 47 performs a registration process (S3) to store the correspondence data transmitted from the mobile terminal 48 (i.e., correspondence data associating the user information, the user language, and the setting information ST of the work implement 1) as the registration information shown in Fig. 6A. In the case of a second embodiment described later, that is, when information on the work type and information on the field are associated with each other in the correspondence data, the registration information shown in Fig. 6B is registered in the server 47.

[0106] Next, assuming that the registration information has been registered in the server 47 as described above, a case where a user gets into the work machine 1 will be described below. As shown in FIG. 7A, when the user gets into the work machine 1 or performs an operation (such as turning on the ignition key) (S4), the authentication unit 44 of the work machine 1 performs user authentication (personal authentication) (S5). The work machine 1 transmits the user's authentication data to the server 47 (S6). The server 47 extracts (identifies) the corresponding user's language and setting information ST of the work machine 1 from the storage device 47a based on the user's authentication data (S7). The server 47 transmits the user's language and setting information ST of the work machine 1 to the work machine 1 (S8). The work machine 1 sets the received user's language and setting information ST of the work machine 1 (S9). The work machine 1 performs work with the setting information ST set in the storage devices 43 of the multiple machine body control devices 40, respectively.

[0107] As described above, the display settings (language settings for the display device 45, etc.), operation settings, and vehicle settings (settings based on the setting information ST of the work machine 1) for each user of the work machine 1 are registered in advance as registration information in the server 47. Then, the user settings corresponding to the user-authenticated user are acquired from the server 47 and set in the work machine 1. Therefore, even when the user-authenticated user gets into a different work machine 1 (vehicle), the user can operate the vehicle based on the display settings (language settings for the display device 45, etc.) and operation settings for each user, and can also perform work using the vehicle settings for each user (settings based on the setting information ST of the work machine 1).

[0108] Here, the processes of the work machine 1 and the server 47 when a user gets on the work machine 1 will be described with reference to Fig. 8 and Fig. 9. Fig. 8 is a flowchart showing the processes of the work machine 1 in the work support system of the first embodiment. Fig. 9 is a flowchart showing the processes of the server 47 in the work support system of the first embodiment.

[0109] As shown in Fig. 8, the control device 50 of the work machine 1 detects whether or not a user has boarded the work machine 1 based on the detection signal of the boarding sensor 51 (S11). For example, the boarding sensor 51 outputs an OFF signal when the user is not seated in the driver's seat 10, and outputs an ON signal when the user is seated. The control device 50 detects that the user has boarded the work machine 1 when the boarding sensor 51 changes from an OFF signal to an ON signal. Therefore, when the boarding sensor 51 detects that the user has boarded the work machine 1 (S11, Yes), that is, when the boarding sensor 51 changes from an OFF signal to an ON signal, the authentication unit 44 performs user authentication (i.e., personal authentication) (S12).

[0110] After S12, the control device 50 determines whether the maintenance device 2 is working (S13). If it is determined that the maintenance device 2 is not working (S13, No), the control device 50 causes the first communication device 46 to transmit information about the authenticated user to the server 47 (S17).

[0111] 9, the control device 47c of the server 47 determines whether data including information of the authenticated user has been received (S21). For example, when the second communication device 47b receives information of the authenticated user, the control device 47c determines that data has been received (S21, Yes), and if data has not been received, the process returns to S21 and waits until data is received.

[0112] The control device 47c identifies the user information indicated by the received data (S22). For example, the control device 47c determines whether the authenticated user information included in the received data is stored in the registration information of the storage device 47a (see FIG. 6A). If the authenticated user information is, for example, user U2, the information matches the user name in the registration information shown in FIG. 6A. Therefore, the control device 47c determines that the user information has been identified (S22, Yes), and transmits the language of user U2 corresponding to user U2 and setting information ST2 of the work machine 1 for user U2 to the work machine 1 (S23). In other words, the second communication device 47b transmits the language of user U2 and setting information ST2 of the work machine 1 for user U2 to the work machine 1.

[0113] On the other hand, in S22, if the information of the authenticated user is not stored in the registration information (see Figure 6A) of the storage device 47a (S22, No), the control device 47c sends a signal to the work machine 1 indicating that there is no corresponding information (S24).

[0114] In S23 shown in Fig. 9, the user's language and the setting information ST of the user's work machine 1 are transmitted from the server 47 to the work machine 1, and in S18 shown in Fig. 8, the work machine 1 determines whether or not it has received the user's language and the setting information ST of the user's work machine 1 (S18). When the setting information of the work machine 1 and the user's language transmitted from the server 47 are received by the first communication device 46 (S18, Yes), the setting unit 55 sets the received setting information of the work machine 1 and the user's language in the work machine 1 (S19).

[0115] On the other hand, in S18, when the work machine 1 receives a signal from the server 47 indicating that there is no corresponding information, the setting unit 55 determines that the user's language and the setting information ST of the user's work machine 1 have not been received (S18, No), and proceeds to S16 without making any settings.

[0116] Furthermore, in S11, if the control device 50 does not change from an OFF signal to an ON signal (S11, No), it means that no new user has boarded the vehicle, and the process proceeds to S16. If the previous user remains seated, the boarding sensor 51 remains an ON signal. If the user gets out of the driver's seat 10, the ON signal changes to an OFF signal, but at this stage, the user has not yet boarded and sat in the driver's seat 10. If no user is seated, the OFF signal remains.

[0117] On the other hand, if the control device 50 determines in S13 that the maintenance device 2 is working (S13, Yes), it determines whether the user authenticated in S12 is another user (S14). That is, if the user authenticated in S12 is different from the user for the current setting information ST, the control device 50 determines that the user is another user (S14, Yes). If the control device 50 determines that the user is another user (S14, Yes), it does not transmit information about the user authenticated in S12 to the server 47 (S15).

[0118] For example, if the original user U1 sets the setting information ST1 of the work machine 1 and is working on the work machine 2, and another user U2 takes the driver's seat 10 in place of the original user U1 while the work machine 1 is traveling at a low speed, user authentication is performed for the other user U2. The control device 50 determines that the user U2 is different from the original user U1 through this user authentication and is therefore another user (i.e., user U2), and does not transmit information about the user U2 authenticated by this other user. As a result, the work machine 1 does not receive the setting information ST2 of the work machine 1 of the other user U2 from the server 47. This makes it possible to prevent the setting information ST from being changed to that of the other user U2 while the work machine 2 is being worked on.

[0119] After S15, after S19, if the answer is No in S14, or if the answer is No in S18, the control device 50 determines whether the work has ended (S16). If the work by the work device 2 has ended, the control device 50 determines that the work has ended (S16, Yes) and ends this processing. On the other hand, if the work by the work device 2 is still continuing, the control device 50 determines that the work has not ended (S16, No) and returns to S11.

[0120] In this way, if the work device 2 is not in operation when the user is authenticated (S12) (No in S13), the setting information ST of the work device 1 corresponding to the authenticated user is set in the work device 1. On the other hand, if the work device 2 is in operation when the user is authenticated (S12) (Yes in S13), it is possible to prevent the setting information ST of the work device 1 corresponding to another user who has been user authenticated from being set in the work device 1. In other words, work can be continued with the setting information ST of the original user.

[0121] The work assistance system of the first embodiment described above is a work assistance system that assists with setting work of the work machine 1, and includes an authentication unit 44 that authenticates a user who operates the work machine 1, a storage device 47a that pre-stores correspondence data that associates user information, the user language, and setting information ST of the work machine 1 set by the user, and a setting unit 55 that acquires from the storage device 47a and sets the user language and setting information ST of the work machine 1 that correspond to the information of the user authenticated by the authentication unit 44. According to this configuration, when the user who operates the work machine 1 is authenticated, not only is the setting information ST of the work machine 1 corresponding to the authenticated user set in the work machine 1, but the user's language is also set in the work machine 1, thereby improving convenience in operating the work machine 1.

[0122] Furthermore, by registering the display settings (language settings for the display device 45, etc.), operation settings, and vehicle settings (settings based on the setting information ST of the work machine 1) for each user in advance in the server 47, and identifying the user through user authentication and reading out the corresponding user settings from the server 47, even when riding a different work machine 1 (vehicle), it is possible to operate the vehicle based on the display settings and operation settings for each user, and further, it is possible to perform work using the vehicle settings for each user (settings based on the setting information ST of the work machine 1).

[0123] The work assistance system includes a work machine 1 and a server 47. The work machine 1 includes an authentication unit 44, a first communication device 46 that transmits information of a user authenticated by the authentication unit 44 to the server 47, and a setting unit 55. The server 47 includes a storage device 47a, a second communication device 47b, and a control device 47c that identifies a user language and setting information ST of the work machine 1 that correspond to the user information received from the first communication device 46 based on correspondence data and causes the second communication device 47b to transmit the identified language and setting information ST of the work machine 1. The setting unit 55 of the work machine 1 sets the user language and setting information ST of the work machine 1 received by the first communication device 46. According to this configuration, when a user operating the work machine 1 is authenticated, the user information is transmitted from the work machine 1 to the server 47, and the user language and setting information ST of the work machine 1 that correspond to the authenticated user information are transmitted from the server 47 to the work machine 1 and set in the work machine 1. Therefore, the user language and setting work of the work machine 1 according to the user operating the work machine 1 can be performed automatically, eliminating the need for the user to perform the setting work.

[0124] The work assistance system includes a mobile terminal 48 having a request unit 48a that requests setting information ST of the work machine 1, an acquisition unit 48b that acquires user information and the user language, and a third communication device 48c that transmits data associating the setting information ST of the work machine 1 requested and obtained by the request unit 48a with the user information and the user language acquired by the acquisition unit 48b as correspondence data. According to this configuration, the mobile terminal 48 transmits the data associating the setting information ST of the work machine 1 requested and obtained by the work machine 1 with the user information and the user language acquired by the acquisition unit 48b as correspondence data to the server 47. Therefore, the server 47 can store the data transmitted from the mobile terminal 48 as correspondence data in the storage device 47a. Therefore, the correspondence data can be managed in the server 47. Furthermore, the correspondence data can be distinguished for each user and sequentially stored in the storage device 47a of the server 47.

[0125] Mobile terminal 48 is equipped with display device 48d, and request unit 48a causes third communication device 48c to transmit a first request signal requesting setting information ST of work machine 1 to work machine 1, and when third communication device 48c receives setting information ST of work machine 1, display device 48d displays the received setting information ST of work machine 1. According to this configuration, mobile terminal 48 can request and acquire setting information ST of work machine 1, and displays the acquired setting information ST of work machine 1 on display device 48d, so that the worker carrying mobile terminal 48 can check setting information ST of work machine 1.

[0126] The acquisition unit 48b acquires the user information and user language entered into the mobile terminal 48, or the user information and user language pre-stored in the mobile terminal 48, and the display device 48d displays correspondence data that associates the setting information ST of the work machine 1 received by the third communication device 48c with the user information and user language acquired by the acquisition unit 48b. This configuration makes it possible to appropriately acquire the user information and the user language. Furthermore, the display device 48d displays the correspondence data that associates the setting information ST of the work machine 1 with the user information and user language, allowing the worker carrying the mobile terminal 48 to confirm the contents of the correspondence data.

[0127] The work machine 1 is equipped with a biometric information acquisition device 49 that acquires biometric information of a user when the user gets on the work machine 1, and the authentication unit 44 authenticates the user based on the biometric information acquired by the biometric information acquisition device 49. According to this configuration, when the user gets on the work machine 1, the user's biometric information is acquired and the user is authenticated based on this biometric information, so that user authentication can be performed quickly.

[0128] The biometric information acquisition device 49 includes an imaging device 49a that captures an image of the face of the user operating the work machine 1, a voice input device 49b that inputs the voice of the user operating the work machine 1, and a fingerprint acquisition device 49c that acquires the fingerprint of the user operating the work machine 1. With this configuration, user authentication can be performed by face authentication, voiceprint authentication, or fingerprint authentication, and the user can be authenticated reliably.

[0129] The work machine 1 includes a machine body 3 (vehicle body) having a traveling device 7, and a coupling unit 8A that is provided on the machine body 3 and to which the work machine 2 is coupled. Even if a user other than the user authenticated by the authentication unit 44 gets on the work machine 1 while the work machine 2 is being used for work and the authentication unit 44 authenticates the other user, the first communication device 46 does not transmit information about the other user authenticated by the authentication unit 44 to the server 47. According to this configuration, even if a user other than the authenticated user gets on the work machine 1 while the work machine 2 of the work machine 1, for which the language and setting information ST of the authenticated user have been set, gets on the work machine 1 while the work machine 2 is being used for work and the other user is newly authenticated, the first communication device 46 does not transmit information about the other authenticated user to the server 47. This makes it possible to prevent the language and setting information ST of the work machine 1 from being changed to that of another user while the work machine 2 is being used. That is, while working with the work device 2, the work can be continued while maintaining the language of the previously authenticated user and the setting information ST of the work machine 1, and it is possible to prevent the language and setting information ST of the work machine 1 from being changed to that of another user who gets on the work machine 1 during the work. This allows a series of tasks from the start to the end of the work (i.e., a task unit) to be consistently performed using the setting information ST of the same user. In other words, it is possible to manage user settings on a task-by-task basis.

[0130] "Working with the work device 2" refers to, for example, a state including at least one of a state in which the work device 2 is located at the work position and performing ground work, and a state in which the machine body 3 (machine body) is automatically steered along the planned travel line L1. With this configuration, in a state including at least one of a state in which the work device 2 is located at the work position and performing ground work, and a state in which the machine body 3 (machine body) is automatically steered along the planned travel line L1, it is possible to prevent a user other than the authenticated user from riding the work device 1 and changing the language and setting information ST of the work device 1 to that of another user. This makes it possible to consistently perform a series of tasks from the start to the end of the task (i.e., a task unit) using the setting information ST of the same user. In other words, it is possible to manage user settings on a task-by-task basis.

[0131] [Variations] 10 is a diagram showing a work assistance system according to a modified example. The same components as those in the first embodiment are denoted by the same reference numerals, and a description thereof will be omitted. The work machine 1 according to the modified example differs from the work machine 1 according to the first embodiment in that it includes an information input unit 45a and a user determination unit 44a.

[0132] As shown in Fig. 10, the work machine 1 of the modified example includes an information input unit 45a and a user determination unit 44a. The display device 45 includes the information input unit 45a into which information related to theft prevention is input. The user who operates the work machine 1 inputs input information into the information input unit 45a.

[0133] The user determination unit 44a determines whether the input information input to the information input unit 45a matches predetermined registered information for theft prevention (for example, a theft prevention password). If the input information matches the registered information, the user determination unit 44a determines that the user is an authorized user, and if the input information does not match the registered information, the user determination unit 44a determines that the user is not an authorized user.

[0134] If the user determination unit 44a determines that the first communication device 46 is a legitimate user, the first communication device 46 transmits information about the user authenticated by the authentication unit 44 to the server 47, and if the user determination unit 44a determines that the user is not a legitimate user, the first communication device 46 does not transmit information about the user authenticated by the authentication unit 44 to the server 47.

[0135] Fig. 11 is a flowchart showing the processing in the work machine 1 of the work support system of the modified example. The flowchart of the modified example shown in Fig. 11 differs from the flowchart of the first embodiment shown in Fig. 8 in that S12A to S12D have been added, and therefore S12A to S12D will be described in detail.

[0136] 11, after personal authentication (S12), the control device 50 displays the information input section 45a on the display device 45 and determines whether or not input information (information related to theft prevention) has been input to the information input section 45a (S12A). The user who operates the work machine 1 inputs input information to the information input section 45a.

[0137] When the control device 50 determines that there is input to the information input unit 45a (S12A, Yes), the user determination unit 44a determines whether the input information input to the information input unit 45a matches predetermined anti-theft registration information (for example, an anti-theft password) (S12B). On the other hand, when the control device 50 determines that there is no input to the information input unit 45a (S12A, No), the process returns to S12A and waits until there is input.

[0138] If the input information matches the registered information (S12B, Yes), the user determination unit 44a determines that the user authenticated in S12 is an authorized user (S12C).

[0139] On the other hand, if the input information does not match the registered information (S12B, No), the user determination unit 44a determines that the user authenticated in S12 is not a legitimate user (S12D).

[0140] If the control device 50 determines that the work device 2 is in operation (S13, Yes) and the user determination unit 44a determines that the user is a legitimate user (S12C), the first communication device 46 transmits information about the user authenticated by the authentication unit 44 to the server 47 (S17).

[0141] On the other hand, if the control device 50 determines that the maintenance device 2 is in operation (S13, Yes) and the user determination unit 44a determines that the user is not an authorized user (S12D), the first communication device 46 proceeds to S16. Therefore, the information of the user authenticated by the authentication unit 44 is not transmitted to the server 47.

[0142] In the work support system of the above-described modified example, the work machine 1 is equipped with an information input unit 45a into which information regarding theft prevention is input, and a user determination unit 44a that determines whether the input information input into the information input unit 45a matches predetermined registration information for theft prevention, and determines that the user is a legitimate user if the input information matches the registration information, and determines that the user is not a legitimate user if the input information does not match the registration information.If the user determination unit 44a determines that the user is a legitimate user, the first communication device 46 transmits information of the user authenticated by the authentication unit 44 to the server 47, and if the user determination unit 44a determines that the user is not a legitimate user, the first communication device 46 does not transmit information of the user authenticated by the authentication unit 44 to the server 47.

[0143] According to this configuration, a double check can be performed for a user who gets on the work machine 1: user authentication by the authentication unit 44 and determination of whether the user is an authorized user by the user determination unit 44a. Furthermore, if the user is authenticated and is an authorized user, information about the user authenticated by the authentication unit 44 is sent to the server 47, and the setting information ST and the user language of the work machine 1 are set. Conversely, if the user is not an authorized user, information about the user authenticated by the authentication unit 44 is not sent to the server 47, so even if a user who is not an authorized user gets on the work machine 1, the setting information ST and the user language of the work machine 1 are not set. This makes it possible to improve the safety of the setting information ST and the user language setting of the work machine 1.

[0144] [Second embodiment] The work assistance system in the second embodiment differs from the first embodiment in that work can be performed by the work implement 2 in a field using the setting information ST of the work implement 1 set by an administrator associated with the field and in the administrator's language. Note that the same components as in the first embodiment are designated by the same reference numerals, and their description will be omitted.

[0145] Fig. 6B is a diagram showing an example of registration information registered in the server 47 of the second embodiment. As shown in Fig. 6B, the storage device 47a of the server 47 of the second embodiment stores, as correspondence data, field management data that associates the field shown in the field map, the manager of the field, the language of the manager, and the setting information of the work implement 1 set by the manager.

[0146] More specifically, as shown in Fig. 6B, the storage device 47a of the server 47 pre-stores, as registration information, field management data that associates information about the field, the manager's name (which is information about the manager), the manager's language, information about the work type, and setting information ST for the work implement 1. In Fig. 6B, the field management data that associates "user U11" indicating the manager's information, "English" indicating the manager's language, "first work WK1" indicating the work of the work implement 2, "setting information ST11" indicating the setting information ST for the work implement 1 set by the manager, and "field H1" indicating the field is stored as registration information for the user U11. Furthermore, field management data associating "user U12" indicating information about the manager, "French" indicating the manager's language, "second task WK2" indicating the task of the task implement 2, "setting information ST12" indicating the setting information ST of the task implement 1 set by the manager, and "field H2" indicating the field is stored as the registration information for user U12. Furthermore, field management data associating "user U13" indicating information about the manager, "Spanish" indicating the manager's language, "third task WK3" indicating the task of the task implement 2, "setting information ST13" indicating the setting information ST of the task implement 1 set by the manager, and "field H3" indicating the field is stored as the registration information for user U13.

[0147] The first communication device 46 of the second embodiment transmits to the server 47 the positioning information acquired by the positioning device 41k together with the user information.

[0148] The storage device 47a also stores a field map. The field map is map data that includes at least map information about the field and location information about the field. The field map may also be map data that includes map information including fields, farm roads, roads, buildings, etc., and location information for each of these.

[0149] The control device 47c identifies a field that matches the positioning information received by the second communication device 47b based on the field management data (correspondence data), and identifies the manager of the identified field. If the identified manager matches the user indicated in the user information received by the second communication device 47b, the control device 47c causes the second communication device 47b to transmit the language of the identified manager and the setting information of the work machine 1 to the work machine 1. On the other hand, if the identified manager does not match the user indicated in the user information received by the second communication device 47b, the control device 47c does not cause the second communication device 47b to transmit the user language corresponding to the received user information and the setting information of the work machine 1 to the work machine 1.

[0150] Fig. 12 is a flowchart showing the processing in the work machine 1 of the work support system of the second embodiment. Fig. 13 is a flowchart showing the processing in the server 47 of the work support system of the second embodiment.

[0151] Since S37 and S39 in the flowchart of the second embodiment shown in FIG. 12 are different from S17 and S19 in the flowchart of the first embodiment shown in FIG. 8, S37 and S39 will be described in detail.

[0152] If the control device 50 determines that the work device 2 is not in operation (S13, No), it causes the first communication device 46 to transmit information about the authenticated user and the positioning information acquired by the positioning device 41k (i.e., the location information of the machine 3) to the server 47 (S37).

[0153] 13, the control device 47c of the server 47 determines whether data including information of the authenticated user has been received (S41). For example, when the second communication device 47b receives information of the authenticated user, the control device 47c determines that data has been received (S41, Yes), and if data has not been received, the process returns to S41 and waits until data is received.

[0154] The control device 47c identifies the field in which the work implement 1 is located based on the received positioning information (i.e., the position information of the machine body 3) and a field map pre-stored in the storage device 47a (S42). For example, the control device 47c uses the field map to identify the field corresponding to the position indicated by the received position information (latitude, longitude). Here, it is assumed that the field in which the work implement 1 is located is identified as field H1.

[0155] The control device 47c identifies the manager of the identified field based on the registration information shown in Fig. 6B (S43). Specifically, the control device 47c uses the registration information shown in Fig. 6B to identify that the manager of the identified field H1 is user U11.

[0156] The control device 47c determines whether the identified administrator matches the user indicated by the user information received by the second communication device 47b (S44).

[0157] If the control device 47c determines that the identified manager (here, user U11) matches the user indicated in the user information received by the second communication device 47b (S44, Yes), it causes the second communication device 47b to transmit the language of the identified manager and the setting information of the work machine to the work machine 1 (S45). For example, if the user indicated in the received user information is user U11, the control device 47c determines that the manager (user U11) of the field H1 matches the user U11, and causes the second communication device 47b to transmit the setting information ST11 of the work machine 1 of the manager (user U11) linked to the field H1 and the language of the manager (user U11) ("English") to the work machine 1.

[0158] On the other hand, if the identified manager (user U11 in this case) does not match the user indicated by the user information received by the second communication device 47b (S44, No), the control device 47c does not cause the second communication device 47b to transmit the language of the user corresponding to the received user information (i.e., a user other than the manager) and the setting information of the work machine 1 to the work machine 1 (S46). For example, if user U11, who is the manager of field H1, and the user indicated by the received user information is a user other than the manager (user U11) (user U13 in this case), the control device 47c determines that the manager (user U11) of field H1 does not match user U13, and does not transmit the setting information ST13 of the work machine 1 of the user (user U13 in this case) other than the manager (user U11) associated with field H1 and the language ("Spanish") of the manager (user U13) to the work machine 1.

[0159] 13, the manager's language and the manager's setting information ST of the work machine 1 are transmitted from the server 47 to the work machine 1, and then in S18 shown in FIG. 12, the work machine 1 determines whether or not the manager's language and the manager's setting information ST of the work machine 1 have been received (S18). When the manager's setting information of the work machine 1 and the manager's language transmitted from the server 47 are received by the first communication device 46 (S18, Yes), the setting unit 55 sets this received manager's setting information of the work machine 1 and the manager's language in the work machine 1 (S39). Therefore, for the field linked to the manager, the manager's setting information ST of the work machine 1 and the manager's language are set, and work is performed by the work machine 2.

[0160] In the work assistance system of the second embodiment described above, the storage device 47a of the server 47 stores, as correspondence data, field management data that associates the field shown in the field map with the manager of the field, the language of the manager, and setting information for the work implement 1 set by the manager. The work implement 1 includes a machine body 3 (vehicle body) having a traveling device 7, and a positioning device 41k that acquires positioning information indicating the position of the machine body 3. The first communication device 46 transmits the positioning information to the server 47 together with user information. The control device 47c identifies a field that matches the positioning information received by the second communication device 47b based on the corresponding data, identifies the manager of the identified field, and if the identified manager matches the user indicated by the user information received by the second communication device 47b, causes the second communication device 47b to transmit the language of the identified manager and the setting information of the work machine 1 to the work machine 1, and if the identified manager does not match the user indicated by the user information received by the second communication device 47b, does not cause the second communication device 47b to transmit the user language and setting information of the work machine 1 corresponding to the received user information to the work machine 1.

[0161] According to this configuration, if the user operating the work machine 1 working in a field is the manager of the field, the manager's language and the setting information of the work machine 1 are set in the work machine 1, so work can be performed using the setting information of the manager linked to the field. On the other hand, if the user is not the manager, it is possible to prevent the language and setting information of the work machine 1 of a user who is not the manager from being set in the work machine 1. In other words, it is possible to prevent work from being performed using setting information of a user other than the manager linked to the field. This makes it possible to manage work in the field.

[0162] [Third embodiment] The work assistance system in the third embodiment differs from the second embodiment in that, when the work implement 1 is located in the second field, if the user operating the work implement 1 is the manager of the second field, the setting information ST of the work implement 1 and the language of the manager of the second field are set by the manager of the second field, and if the user is not the manager of the second field, a warning can be issued. Note that the same components as in the second embodiment are given the same reference numerals and their description will be omitted.

[0163] The first communication device 46 of the work machine 1 transmits positioning information indicating the position of the machine body 3 to the server 47 every time a predetermined period (for example, one minute) has elapsed.

[0164] When the position of the vehicle indicated by the positioning information moves from the position of the first field or a position outside the field indicated by the field map to a position within the second field, the control device 47c of the server 47 causes the second communication device 47b to transmit a second request signal requesting information about the user operating the work machine 1.

[0165] The control device 47c determines whether the user information transmitted from the work implement 1 in response to the second request signal matches the manager of the second field. If the user information does not match the manager, the control device 47c causes the second communication device 47b to transmit a warning signal, and if the user information matches the manager, the control device 47c causes the second communication device 47b to transmit the language of the manager associated with the second field and the setting information of the work implement 1.

[0166] Figure 14 is a flowchart showing the processing in the server 47 of the work support system of the third embodiment. Here, the description will be given assuming that the field H1 shown in Figure 6B is the first field and the field H2 is the second field. That is, the manager of the first field (field H1) is user U11, and the manager's (user U11's) language is "English." The manager of the second field (field H2) is user U12, and the manager's (user U12's) language is "French."

[0167] The control device 47c of the server 47 determines whether the work implement 1 is located in the second field (field H2) (S51). Specifically, it determines whether the position of the machine body 3 (vehicle body) indicated by the positioning information received by the second communication device 47b is located within the second field (field H2) from the position of the first field (field H1) or a position outside the field indicated by the field map stored in the storage device 47a.

[0168] Then, when the control device 47c determines that the work machine 1 is located in the second field (field H2) (S51, Yes), it causes the second communication device 47b to transmit a second request signal to the work machine 1 (S52). On the other hand, when the control device 47c determines that the work machine 1 is not located in the second field (S51, No), it returns to S51 and continues to determine whether the work machine 1 is located in the second field.

[0169] After S52, the control device 47c determines whether the user information transmitted from the work implement 1 in response to the second request signal matches the manager (user U12) of the second field (field H2) shown in Figure 6B (S53).

[0170] If the user indicated in the user information transmitted from the work machine 1 does not match the administrator (user U12), the control device 47c causes the second communication device 47b to transmit a warning signal to the work machine 1 (S57). In other words, when the first communication device 46 of the work machine 1 receives the warning signal, the control device 50 causes the display device 45 to display a warning screen to warn that the user is not the administrator. By viewing the warning screen, the user operating the work machine 1 can know that work in the second field will be performed using the setting information ST12 of the work machine 1 set by the administrator (user U12).

[0171] On the other hand, if the user indicated in the user information transmitted from the work implement 1 matches the manager (user U12), the control device 47c causes the second communication device 47b to transmit a third request signal to the work implement 1 (S54). The third request signal is a signal for requesting transmission of the current setting information ST of the work implement 1. When the first communication device 46 of the work implement 1 receives the third request signal, the control device 50 causes the first communication device 46 to transmit the current setting information ST of the work implement 1 to the server 47. The control device 47c of the server 47 determines whether the setting information ST of the manager of the second field has been set (S55). For example, the control device 47c of the server 47 determines whether the current setting information ST of the work implement 1 matches the language (French) of the manager (user U12) associated with the second field (field H2) and the setting information ST12 of the work implement 1.

[0172] If the control device 47c determines that the setting information ST of the manager of the second field has been set (S55, Yes), it ends this process. On the other hand, if the control device 47c determines that the setting information ST of the manager of the second field has not been set (S55, No), it causes the second communication device 47b to transmit the language (French) of the manager (user U12) associated with the second field (field H2) and the setting information ST12 of the work implement 1 to the work implement 1 (S56). Therefore, for the second field (field H2), the setting information ST12 of the work implement 1 and the language (French) of the manager (user U12) of the second field (field H2) are set, and work is performed by the work implement 2.

[0173] In the work assistance system of the third embodiment described above, the first communication device 46 transmits positioning information to the server 47 every time a predetermined period has elapsed, and when the position of the machine body 3 (vehicle body) indicated by the positioning information moves from the position of the first field or a position outside the field indicated on the field map to a position within the second field, the control device 47c causes the second communication device 47b to transmit a second request signal requesting information about the user operating the work implement 1, determines whether the user information transmitted from the work implement 1 in response to the second request signal matches the manager of the second field, and if it does not match the manager, causes the second communication device 47b to transmit a warning signal, and if it matches the manager, causes the second communication device 47b to transmit the language of the manager associated with the second field and the setting information of the work implement 1.

[0174] According to this configuration, when the work implement 1 moves from the first field or a non-field location to the second field, the authentication unit 44 of the work implement 1 that has moved to the second field authenticates the user based on the second request signal from the server 47. The work implement 1 transmits information about the user authenticated by the authentication unit 44 to the server 47. If the user indicated in the user information transmitted from the work implement 1 does not match the administrator of the second field, the server 47 transmits a warning signal to the work implement 1, thereby notifying the user that work in the second field will be performed using the administrator's setting information. This makes it possible to prevent the language and setting information of the work implement 1 of a user other than the administrator from being set in the work implement 1. In other words, it is possible to prevent work from being performed using setting information of a user other than the administrator associated with the second field. On the other hand, if it matches the manager of the second field, the language of the user (=manager) operating the work machine 1 that has entered the second field and the setting information of the work machine 1 can be set in the work machine 1, and work can be performed using the setting information of the manager linked to the second field. This makes it possible to manage work for each field.

[0175] It should be noted that the work assistance system of each of the above-described embodiments and variations includes a work machine 1, a server 47, and a mobile terminal 48, and the mobile terminal 48 transmits correspondence data (user information, user language, user setting information ST for the work machine 1, etc.) to the server 47, but is not limited to this. For example, the work assistance system may include a work machine 1 and a server 47 (i.e., no mobile terminal 48), and the work machine 1 may transmit the correspondence data to the server 47. In this case, the correspondence data may be displayed on the display device 45 of the work machine 1, and then this correspondence data may be transmitted to the server 47.

[0176] The embodiments disclosed herein should be considered to be illustrative in all respects and not restrictive. The scope of the present invention is defined by the claims, not by the above description, and is intended to include all modifications within the meaning and scope of the claims. [Explanation of symbols]

[0177] 1: Work equipment 2: Work equipment 3: Aircraft (car body) 8A:Connection part 44: Authentication section 44a: User determination section 45:Display device 45a: Information input section 46: First communication device 47: Server 47a: Storage device 47b: Second communication device 47c: Control device 48: Mobile devices 48a:Request part 48b: Acquisition part 48c: Third communication device 48d:Display device 49: Biometric information acquisition device 49a: Imaging device 49b: Voice input device 49c: Fingerprint acquisition device 50: Control device 55: Setting section

Claims

1. A work support system comprising a work machine and a server, and supporting the setting work of the work machine, an authentication unit that authenticates a user who operates the work machine; a storage device that pre-stores correspondence data that associates information about the user, the language of the user, and setting information about the work machine set by the user; a setting unit that acquires from the storage device and sets the language of the user and setting information of the work machine corresponding to information of the user authenticated by the authentication unit, The work machine includes the authentication unit, a first communication device that transmits information of a user authenticated by the authentication unit to the server, and the setting unit, The server includes the storage device, a second communication device, and a control device that identifies the user's language and the setting information of the work machine corresponding to the user information received from the first communication device based on the correspondence data and transmits the identified language and setting information of the work machine by the second communication device, The setting unit of the work machine sets the language of the user and the setting information of the work machine received by the first communication device, The work machine is an information input section into which information relating to theft prevention is input; a user determination unit that determines whether or not input information input to the information input unit matches predetermined registration information for theft prevention, and determines that the user is an authorized user if the input information matches the registration information, and determines that the user is an unauthorized user if the input information does not match the registration information, When the user determination unit determines that the first communication device is a legitimate user, the first communication device transmits information of the user authenticated by the authentication unit to the server, and when the user determination unit determines that the first communication device is not a legitimate user, the first communication device does not transmit information of the user authenticated by the authentication unit to the server.

2. a request unit that requests setting information of the work machine; an acquisition unit that acquires information about the user and a language of the user; Transmitting data in which the setting information of the work machine requested and obtained by the request unit is associated with the information of the user and the language of the user acquired by the acquisition unit as the associated data. The work assistance system according to claim 1 , further comprising a mobile terminal having a third communication device for communicating with the user.

3. the mobile terminal includes a display device; the request unit causes the third communication device to transmit a first request signal to the work machine, the first request signal requesting setting information of the work machine; The work support system according to claim 2 , wherein when the third communication device receives the setting information of the work machine, the display device displays the received setting information of the work machine.

4. the acquisition unit acquires the user information and the user language input to the mobile terminal, or the user information and the user language pre-stored in the mobile terminal; The work assistance system according to claim 3, wherein the display device displays the correspondence data that associates the setting information of the work machine received by the third communication device with the information of the user and the language of the user acquired by the acquisition unit.

5. the work machine is equipped with a biometric information acquisition device that acquires biometric information of a user when the user gets on the work machine; 5. The work support system according to claim 1, wherein the authentication unit authenticates the user based on biometric information acquired by the biometric information acquisition device.

6. The work assistance system according to claim 5, wherein the biometric information acquisition device includes an imaging device that captures an image of the face of the user operating the work machine, a voice input device that inputs the vocalizations of the user operating the work machine, or a fingerprint acquisition device that acquires the fingerprint of the user operating the work machine.

7. A work support system comprising a work machine and a server, and supporting the setting work of the work machine, an authentication unit that authenticates a user who operates the work machine; a storage device that pre-stores correspondence data that associates information about the user, the language of the user, and setting information about the work machine set by the user; a setting unit that acquires from the storage device and sets the user's language and setting information of the work machine corresponding to information of the user authenticated by the authentication unit, The work machine includes the authentication unit, a first communication device that transmits information of a user authenticated by the authentication unit to the server, the setting unit, a vehicle body having a traveling device, and a coupling unit that is provided on the vehicle body and to which the work machine is coupled, The server includes the storage device, a second communication device, and a control device that identifies the user's language and the setting information of the work machine corresponding to the user information received from the first communication device based on the correspondence data and transmits the identified language and setting information of the work machine by the second communication device, The setting unit of the work machine sets the language of the user and the setting information of the work machine received by the first communication device, A work assistance system in which, even if a user other than the user authenticated by the authentication unit gets on the work machine while work is being performed by the work machine and the authentication unit authenticates the other user, the first communication device does not transmit information about the other user authenticated by the authentication unit to the server.

8. 8. The work assistance system according to claim 7, wherein the working device is performing work includes at least one of a state in which the working device is located at a work position and performing ground work, and a state in which the vehicle body is automatically steered along a planned travel line.

9. A work support system comprising a work machine and a server, and supporting the setting work of the work machine, an authentication unit that authenticates a user who operates the work machine; a storage device that pre-stores correspondence data that associates information about the user, the language of the user, and setting information about the work machine set by the user; a setting unit that acquires from the storage device and sets the language of the user and setting information of the work machine corresponding to information of the user authenticated by the authentication unit, The work machine includes the authentication unit, a first communication device that transmits information of a user authenticated by the authentication unit to the server, and the setting unit, The server includes the storage device, a second communication device, and a control device that identifies the user's language and the setting information of the work machine corresponding to the user information received from the first communication device based on the correspondence data and transmits the identified language and setting information of the work machine by the second communication device, The setting unit of the work machine sets the language of the user and the setting information of the work machine received by the first communication device, the storage device stores, as the correspondence data, field management data that associates the field indicated by the field map with a manager of the field, the language of the manager, and setting information of the work machine set by the manager; and the work machine includes a vehicle body having a traveling device and a positioning device that acquires positioning information indicating a position of the vehicle body, and the first communication device transmits the positioning information to the server together with information about the user; The control device identifies a field that matches the positioning information received by the second communication device based on the correspondence data, identifies a manager of the identified field, and, if the identified manager matches the user indicated by the user information received by the second communication device, causes the second communication device to transmit the language of the identified manager and the setting information of the work machine to the work machine; and, if the identified manager does not match the user indicated by the user information received by the second communication device, does not cause the second communication device to transmit the user language corresponding to the received user information and the setting information of the work machine to the work machine.

10. the first communication device transmits the positioning information to the server every time a predetermined period elapses; 10. The work support system of claim 9, wherein when the position of the vehicle indicated by the positioning information moves from the position of the first field or a position that is not a field indicated by the field map to a position within a second field, the control device causes the second communication device to transmit a second request signal requesting information about a user operating the work machine, determines whether the user information transmitted from the work machine in response to the second request signal matches the manager of the second field, and if the user information does not match the manager, causes the second communication device to transmit a warning signal, and if the user information matches the manager, causes the second communication device to transmit the language of the manager associated with the second field and setting information of the work machine from the second communication device.

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