WO2019097872A1

WO2019097872A1 - Information acquisition device and information management system

Info

Publication number: WO2019097872A1
Application number: PCT/JP2018/036930
Authority: WO
Inventors: 英樹三谷
Original assignee: ヤンマー株式会社
Priority date: 2017-11-16
Filing date: 2018-10-02
Publication date: 2019-05-23
Also published as: JP6924542B2; KR20200088269A; JP7219309B2; JP2021177420A; JP2019091353A; CN111344643A

Abstract

In this invention, a communication terminal 2 comprises: a position detection part 51 for detecting position information representing the position of a work vehicle 11; and an information acquisition processing part 42 for sampling the position information detected by the position detection part 51 and storing the sampled data in a storage part 55. The information acquisition processing part 42 uses the position information detected by the position detection part 51 to assess whether the work vehicle 11 is positioned within or without a field, and is capable of switching the sampling interval when sampling the position information while taking the result of the assessment into consideration.

Description

Information acquisition device and information management system

The present invention relates to an information acquisition device and an information management system.

Patent Document 1 shows the following technology in a system in which operation information of a working machine such as a forklift and a hydraulic shovel is sampled and stored in a storage unit as working machine data. That is, since the storage capacity of the storage unit is limited, if it is desired to increase the recording time even if the density of the work machine information is sacrificed, the sampling interval at the time of sampling the operation information is increased.

JP, 2014-177816, A

Patent Document 1 does not disclose changing the sampling interval when storing work machine data in the storage unit based on the position of the work machine.

An object of the present invention is to be able to switch the sampling interval when storing the position information of the work vehicle in the storage unit in consideration of whether the work vehicle is located in the field or outside the field To provide an information acquisition device and an information management system.

An information acquisition apparatus according to the present invention includes a detection unit that detects position information representing a position of a work vehicle using a satellite positioning system, and information acquisition that samples position information detected by the detection unit and stores the information in a storage unit. The processing unit is included, and the information acquisition processing unit determines whether the work vehicle is located in the field or outside the field based on the position information detected by the detection unit, and the determination is made In consideration of the result, the sampling interval at the time of sampling the position information is configured to be switchable.

In this configuration, it is possible to switch the sampling interval when storing the position information of the work vehicle in the storage unit in consideration of whether the work vehicle is located in the farm or outside the farm.

In one embodiment of the present invention, the information acquisition processing unit determines whether the key switch of the work vehicle is in the key-on state or the key-off state, and the position information is sampled in consideration of the determination result. The sampling interval can be switched.

In this configuration, in addition to whether the work vehicle is located in the field or out of the field, the key switch of the work vehicle is also considered in terms of whether it is key on or key off. It becomes possible to switch the sampling interval when storing position information in the storage unit.

In one embodiment of the present invention, when it is determined that the key switch is in the key-on state, the information acquisition processing unit determines whether the work vehicle is moving or stopped, and the determination is made. In consideration of the result, the sampling interval at the time of sampling the position information can be switched.

In this configuration, the key switch is in the key-on state, in addition to whether the work vehicle is located in or outside the field and whether the key switch of the work vehicle is key-on or key-off. When it is determined, it is possible to switch the sampling interval when storing the position information of the work vehicle in the storage unit, in consideration of whether the work vehicle is moving or stopping.

In one embodiment of the present invention, the information acquisition processing unit considers the operation information of the work vehicle together with the position information in consideration of the determination result as to whether the work vehicle is moving or stopping. It is configured to be selectable whether or not to store in the storage unit.

In this configuration, in consideration of whether the work vehicle is moving or stopped, it is possible to select whether to store the operation information of the work vehicle together with the position information in the storage unit.

In one embodiment of the present invention, the information acquisition processing unit determines whether the work vehicle is moving or stopping, and also takes into consideration the determination result to sample the position information. The sampling interval can be switched.

In this configuration, in addition to whether the work vehicle is located in or outside the field, the position information of the work vehicle is determined taking into consideration whether the work vehicle is moving or stopping. It is possible to switch the sampling interval when storing in the storage unit.

An information management system according to the present invention includes a communication terminal provided on the work vehicle side and a management server capable of communicating with the communication terminal, the communication terminal using the satellite positioning system to locate the position of the work vehicle And a first information acquisition processing unit that acquires work vehicle side information including at least position information detected by the detection unit and transmits the acquired information to the server, the management server including: An information temporary storage processing unit that receives work vehicle side information transmitted from the terminal device and temporarily stores it in a memory, and stores at least position information in the work vehicle side information stored in the memory by sampling And a second information acquisition processing unit stored in the storage unit, the second information acquisition processing unit, based on the position information in the work vehicle side information stored in the memory, the work vehicle Is configured to be able to switch the sampling interval when sampling at least the position information in the work vehicle side information in consideration of the determination result whether it is located within the field or outside the field ing.

In this configuration, the management server, based on the work vehicle side information received from the communication terminal, takes into consideration the determination result as to whether the work vehicle is located in the field or outside the field, and It is possible to switch the sampling interval when storing at least position information of the above in the storage unit.

In one embodiment of the present invention, the work vehicle side information includes at least the position information and key on / off information indicating whether the key switch of the work vehicle is in the key on state or in the key off state. The second information acquisition processing unit determines whether the key switch is in the key on state or in the key off state based on the key on / off information in the work vehicle side information stored in the memory, and also determines the determination result. In consideration of this, the sampling interval at the time of sampling at least the position information in the work vehicle side information is configured to be switchable.

In this configuration, in addition to the determination result as to whether the above-mentioned work vehicle is located in the field or outside the field, the management server is a key of the work vehicle based on the work vehicle side information received from the communication terminal. In consideration of the determination result as to whether the switch is in the key-on state or the key-off state, it is possible to switch the sampling interval when storing at least position information in the work vehicle side information in the storage unit.

In one embodiment of the present invention, when it is determined that the key switch is in the key-on state, the second information acquisition processing unit is based on position information in the work vehicle side information stored in the memory. It is determined whether the work vehicle is moving or stopped, and in consideration of the determination result, the sampling interval at the time of sampling at least position information in the work vehicle side information can be switched. ing.

In this configuration, the management server determines whether the work vehicle described above is located in the field or outside the field, and determines whether the key switch of the work vehicle is in the key-on state or the key-off state. In addition to the above, when it is determined that the key switch is in the key-on state, the determination result on whether the work vehicle is moving or stopped based on the work vehicle side information received from the communication terminal is also considered. Thus, it is possible to switch the sampling interval when storing at least position information in the work vehicle side information in the storage unit.

In one embodiment of the present invention, the work vehicle side information includes at least the position information and operation information of the work vehicle including the key on / off information, and the second information acquisition processing unit performs the work In consideration of the determination result of whether the vehicle is moving or stopping, it is possible to select whether or not to store at least a part of the operation information of the work vehicle together with the position information in the storage unit. It is done.

In this configuration, the management server, based on the work vehicle side information received from the communication terminal, considers at least a part of the operation information of the work vehicle in consideration of the determination result of whether the work vehicle is moving or stopping. It is possible to select whether or not to store in the storage unit together with the position information.

In one embodiment of the present invention, the second information acquisition processing unit determines whether the work vehicle is moving or stopped based on position information in the work vehicle side information stored in the memory. The determination is made, and in consideration of the determination result, the sampling interval at the time of sampling at least the position information in the work vehicle side information is configured to be switchable.

In this configuration, the management server moves the work vehicle based on the work vehicle side information received from the communication terminal in addition to the determination result as to whether the work vehicle described above is located in the farm or outside the farm. It is possible to switch the sampling interval when storing at least the position information in the work vehicle side information in the storage unit in consideration of the determination result as to whether it is medium or not.

The above or further objects, features and effects of the present invention will be made clear by the description of the embodiments described below with reference to the accompanying drawings.

FIG. 1 is a schematic view showing the configuration of an information management system. FIG. 2 is a side view showing the tractor and the working machine attached to the tractor, and showing the working machine in a non-working state. FIG. 3 is a plan view of the tractor and the working machine. FIG. 4 is a side view showing a tractor and a working machine, showing the working machine in a working state. FIG. 5 is a block diagram showing the electrical configuration of the tractor and the management server. FIG. 6 is a schematic view showing an example of sampling control information. FIG. 7 is a flowchart for explaining the operation of the information acquisition processing unit of the communication terminal. FIG. 8 is a block diagram showing the electrical configuration of the tractor and the management server. FIG. 9 is a flowchart for explaining the operation of the first information acquisition processing unit of the communication terminal. FIG. 10 is a flowchart showing the operation of the information temporary storage processing unit of the management server. FIG. 11A is a part of a flowchart showing the operation of the second information acquisition processing unit of the management server. FIG. 11B is a part of a flowchart showing the operation of the second information acquisition processing unit of the management server.

First, a first embodiment of the present invention will be described.

FIG. 1 is a schematic view showing the configuration of an information management system.

The information management system 1 includes a communication terminal 2 mounted on a tractor 11 as a work vehicle, and a management server 3. The communication terminal 2 can communicate with the management server 3 via the communication network 5.

The communication terminal 2 has a function of measuring the position of the tractor 11 using the positioning satellite 6. The communication terminal 2 transmits work vehicle side information including at least position information to the management server 3. The management server 3 is provided in the management center 4. The management server 3 receives the work vehicle side information transmitted from the communication terminal 2. The management server 3 stores the received work vehicle side information in the storage unit.

FIG. 2 is a side view showing the tractor 11 and the working machine 13 mounted on the tractor 11, and showing the working machine 13 in a non-working state. FIG. 3 is a plan view of the tractor 11 and the working machine 13. FIG. 4 is a side view showing the tractor 11 and the working machine 13 and showing the working machine 13 in a working state.

The tractor 11 includes a traveling machine body 12 as a vehicle body unit that travels in a field. For example, various working machines such as a cultivator, a plow, a fertilizer applicator, a mowing machine, and a planter can be selected and attached to the traveling machine body 12. In the present embodiment, a rotary cultivator is mounted as the working machine 13.

As shown in FIG. 2, the traveling body 12 of the tractor 11 is supported at its front portion by a pair of left and right front wheels 17 and at its rear portion by a pair of left and right rear wheels 18.

A bonnet 19 is disposed at the front of the traveling airframe 12. In the present embodiment, an engine 20 as a drive source of the tractor 11, a fuel tank (not shown), and the like are accommodated in the bonnet 19. Although this engine 20 can be comprised, for example with a diesel engine, it does not restrict to this, For example, you may comprise with a gasoline engine. In addition, as a drive source, an electric motor may be adopted instead of or in addition to the engine 20.

A cabin 21 for the user to board is disposed behind the hood 19. Inside the cabin 21, a steering handle 22 for the user to steer and operate, a seat 23 on which the user can sit, the communication terminal 2, a key switch 24 for starting the engine (see FIG. 5), various operations There are various operation devices and the like for performing the operation. The communication terminal 2 is detachably mounted on a terminal support portion 16 fixed to the lower surface of the roof 15 of the cabin 21. As the key switch 24, a key is inserted into a so-called key cylinder, and an electric signal (key-on signal and key-off signal) is emitted by a rotation operation, or an electric signal is emitted when authentication is obtained using an electronic key provided with an immobilizer. It is possible to apply ones or ones that emit an electrical signal by means of a push button. In addition, the tractor 11 is not restricted to the thing with the cabin 21, and the structure which is not equipped with the cabin 21 may be sufficient.

As shown in FIG. 2, a chassis 30 of the tractor 11 is provided below the traveling body 12. The chassis 30 includes an airframe 31, a transmission 32, a front axle 33, a rear axle 34, and the like.

The airframe frame 31 is a support portion at the front of the tractor 11 and supports the engine 20 directly or via a vibration isolation member or the like. The transmission 32 changes the power from the engine 20 and transmits it to the front axle 33 and the rear axle 34. The front axle 33 transmits the power input from the transmission 32 to the front wheels 17. The rear axle 34 transmits the power input from the transmission 32 to the rear wheel 18.

As shown in FIG. 2, a working machine 13 is attached to the rear of the traveling machine body 12 of the tractor 11. By transmitting a part of the driving force of the engine 20 to the working machine 13 via the PTO shaft (not shown), the working machine 13 can be driven to perform the tilling work. At the lower part of the work implement 13, a plurality of tilling claws (workpieces) 35 that are rotationally driven around a horizontally disposed shaft 35c are provided.

By lowering the work implement 13 to the work height shown in FIG. 4, the rotating tillage nail 35 contacts the soil, and it is possible to perform the tillage work of the field at a predetermined depth corresponding to the work height. In addition, it is possible to stop the tilling operation by stopping the rotation of the tilling claw 35 or raising the work implement 13 to the non-working height shown in FIG. 2.

FIG. 5 is a block diagram showing the electrical configuration of the tractor 11 and the management server 3.

The tractor 11 includes a tractor control device 10 and the communication terminal 2 mounted on the tractor 11. The tractor control device 10 controls the operation of the traveling machine body 12 (operations such as forward, reverse, stop, and turn) and the operation of the work implement 13 (operations such as elevation, drive, and stop). In the tractor control device 10, in addition to the key switch 24, a plurality of controllers (not shown) for controlling each part of the tractor 11 are electrically connected. The plurality of controllers include an engine controller that controls the number of rotations of the engine 20, a vehicle speed controller that controls the vehicle speed of the tractor 11, a steering controller that controls the turning angle of the front wheel 17 of the tractor 11, and lifting and lowering of the work machine 13 Lifting controller, a PTO axis controller for controlling the rotation of the PTO axis, and the like.

The tractor control device 10 gives operation information to the communication terminal 2 at predetermined time intervals. The operation information includes key on / off information, engine speed, exhaust temperature, operation state of an accelerator, operation state of a brake, and the like. The key on / off information is information indicating whether the key switch 24 of the tractor 11 is on or off.

The communication terminal 2 includes a control unit 40. To the control unit 40, a position detection unit 51, a communication unit 52, an operation display unit 53, an operation unit 54, a storage unit 55, and the like are connected. The position detection unit 51 calculates position information of the tractor 11 (the communication terminal 2) based on the satellite positioning system. The satellite positioning system is, for example, the Global Navigation Satellite System (GNSS). Specifically, the position detection unit 51 receives satellite signals from a plurality of positioning satellites 6 (see FIG. 1), and detects position information of the tractor 11. Position information consists of latitude, longitude, and altitude information, for example.

The communication unit 52 is a communication interface for the control unit 40 to communicate with the management server 3 via the communication network 5 (see FIG. 1). The operation display unit 53 is, for example, a touch panel display. The operation unit 54 includes, for example, one or more operation buttons. The storage unit 55 is configured of a storage device such as a non-volatile memory.

The control unit 40 includes a microcomputer provided with a CPU and a memory (ROM, RAM, etc.) 41. The control unit 40 includes an information acquisition processing unit 42. The information acquisition processing unit 42 samples work vehicle side information including at least position information among position information calculated by the position detection unit 51 and operation information provided by the tractor control device 10 and stores the information in the storage unit 55. , And performs information acquisition processing for transmitting to the management server 3. When the work vehicle side information is sampled and stored in the storage unit 55, the information acquisition processing unit 42 stores, in the storage unit 55, information obtained by adding the sampling time to the work vehicle side information. In the first embodiment, the information acquisition processing unit 42 transmits the information stored in the storage unit 55 to the management server 3 in real time. Details of the information acquisition processing unit 42 will be described later.

The storage unit 55 is provided with a time-series information storage unit 56, a field position information storage unit 57, a sampling control information storage unit 58, and the like. The time-series information storage unit 56 stores work vehicle side information sampled by the information acquisition processing unit 42.

In the field position information storage unit 57, there is position information (hereinafter referred to as "field position information") for specifying an area of a field where a work (in this example, a tilling operation) using the tractor 11 may be performed. It is memorized. The sampling control information storage unit 58 stores a sampling interval when the work vehicle side information is sampled by the information acquisition processing unit 42 and control information (hereinafter referred to as “sampling control information”) regarding a sampling target (information to be sampled). Be done. Field position information and sampling control information are set by the management server 3. The agricultural field position information storage unit 57 and the sampling control information storage unit 58 store the agricultural field position information and the sampling control information set by the management server 3.

FIG. 6 is a schematic view showing an example of sampling control information.

In this example, the key switch 24 of the tractor 11 is in the on state (key on state) or off state (key off state), whether the tractor 11 is located in the field or outside the field, and The state of the tractor 11 is divided into six types of state 1 to state 6 depending on whether 11 is moving or stopping. The sampling interval and the sampling target are set for each of the six states 1 to 6.

In FIG. 6, ON is in the key-on state, OFF is in the key-off state, outside the field is during rest that the tractor 11 is located outside the field, and inside the field is when the tractor 11 is located within the field Indicates that the tractor 11 is at rest, and that the tractor 11 is moving during movement.

In state 1, the key switch 24 of the tractor 11 is on, the tractor 11 is located outside the field, and the tractor 11 is at rest. In state 2, the key switch 24 of the tractor 11 is on, the tractor 11 is located outside the field, and the tractor 11 is moving.

In state 3, the key switch 24 of the tractor 11 is on, the tractor 11 is located in the field, and the tractor 11 is at rest. State 4 is a state in which the key switch 24 of the tractor 11 is on, the tractor 11 is located in the field, and the tractor 11 is moving.

In state 5, the key switch 24 of the tractor 11 is off, and the tractor 11 is located outside the field. In state 6, the key switch 24 of the tractor 11 is off, and the tractor 11 is located in the field.

In FIG. 6, when the state of the tractor 11 (tractor state) corresponds to the state 1, the sampling interval is set to 60 minutes, and the sampling target is set to position information. When the tractor state corresponds to state 2, the sampling interval is set to 1 minute, and the sampling target is set to position information and engine rotational speed (engine rotational speed in the operating information).

When the tractor state corresponds to state 3, the sampling interval is set to 5 minutes, and the sampling target is set to position information. When the state of the tractor 11 corresponds to the state 4, the sampling interval is set to 10 seconds, and the sampling target is set to position information and operation information (all operation information).

When the state of the tractor 11 corresponds to the state 5, the sampling interval is set to 90 minutes, and the sampling target is set to the position information. When the state of the tractor 11 corresponds to the state 6, the sampling interval is set to 30 minutes, and the sampling target is set to the position information.

That is, in the example of FIG. 6, the sampling interval is set to be shorter in the key-on state than in the key-off state. In addition, when the tractor 11 is located in the field, the sampling interval is set shorter than when the tractor 11 is located outside the field. In the key-on state, when the tractor 11 is moving, the sampling interval is set shorter than when the tractor 11 is stopping. Further, in the key-on state, when the tractor 11 is moving, the number of types of sampling targets is larger than when the tractor 11 is stopping.

Field position information and sampling control information (hereinafter referred to collectively as “field position / sampling control information”) are set on the management server 3 side. As described later, when the contents of the field position / sampling control information are changed on the management server 3 side, the information acquisition processing unit 42 downloads the field position / sampling control information after the setting change. The contents of the field position information storage unit 57 and the sampling control information storage unit 58 are updated.

Returning to FIG. 5, the management server 3 includes a control unit 60. A communication unit 71, an operation display unit 72, an operation unit 73, a storage unit 74 and the like are connected to the control unit 60. The communication unit 71 is a communication interface for the control unit 60 to communicate with the communication terminal 2 via the communication network 5. The operation display unit 72 is, for example, a touch panel display. The operation unit 73 includes, for example, a keyboard, a mouse, and the like. The storage unit 74 is configured of storage devices such as a hard disk and a non-volatile memory.

In the storage unit 74, a time-series information storage unit 75, a field position information storage unit 76, and a sampling control information storage unit 77 are provided. The time-series information storage unit 58 stores the work vehicle side information received from the communication terminal 2. The agricultural field position information storage unit 76 stores the aforementioned agricultural field position information. The sampling control information storage unit 77 stores the above-described sampling control information.

The control unit 60 includes a microcomputer provided with a CPU and a memory (ROM, RAM, etc.) 61. Control unit 60 includes an information management unit 62. When the information management unit 62 receives time-series information from the communication terminal 2, the information management unit 62 stores the received time-series information in the time-series information storage unit 75.

Hereinafter, the operation of the information acquisition processing unit 42 in the control unit 40 of the communication terminal 2 will be described in detail.

FIG. 7 is a flowchart for explaining the operation of the information acquisition processing unit 42 of the communication terminal 2.

In this embodiment, the information acquisition processing unit 42 executes information acquisition processing not only when the key switch 24 of the tractor 11 is in the on state, but also when the key switch 24 is in the off state. The sampling control information storage unit 58 in the storage unit 55 stores the sampling control information shown in FIG.

The information acquisition processing unit 42 first determines whether the key switch 24 is in the on state or in the off state (step S1). If it is determined that the key switch 24 is in the off state (step S1: NO), the information acquisition processing unit 42 proceeds to step S2. In step S2, the information acquisition processing unit 42 acquires the position information of the tractor 11 from the position detection unit 51, and based on the acquired position information and the field position information in the field position information storage unit 57, the tractor 11 Determine if it is located in the field.

If it is determined that the tractor 11 is located out of the field (step S2: NO), the information acquisition processing unit 42 performs sampling corresponding to the state 5 (see FIG. 6) in the sampling control information storage unit 58. A sampling process is performed according to the control information (step S3). Specifically, the information acquisition processing unit 42 samples the sampling target corresponding to the state 5 at the sampling interval corresponding to the state 5 and stores the sampling target in the time-series information storage unit 56. In the example of FIG. 6, the information acquisition processing unit 42 samples only the position information detected by the position detection unit 51 at a sampling interval of 90 minutes and stores the sampled information in the time-series information storage unit 56.

Then, the information acquisition processing unit 42 transmits the unsent information in the time-series information storage unit 56 to the management server 3 (step S4). Unsent information is information that has not been transmitted to the management server 3. As a result, the work vehicle side information stored in the time-series information storage unit 56 is transmitted to the management server 3. Thereafter, the information acquisition processing unit 42 returns to step S1.

If it is determined in step S2 that the tractor 11 is located in the field (step S2: YES), the information acquisition processing unit 42 determines that the state 6 in the sampling control information storage unit 58 (see FIG. 6). The sampling process is performed according to the sampling control information corresponding to (step S5). Specifically, the information acquisition processing unit 42 samples the sampling target corresponding to the state 6 at the sampling interval corresponding to the state 6, and stores the sampling target in the time-series information storage unit 56. In the example of FIG. 6, the information acquisition processing unit 42 samples only position information at a sampling interval of 30 minutes and stores the sampled information in the time-series information storage unit 56.

Then, after transmitting the unsent information in the time-series information storage unit 56 to the management server 3 (step S4), the information acquisition processing unit 42 returns to step S1.

If it is determined in step S1 that the key switch 24 is in the on state (step S1: YES), the information acquisition processing unit 42 communicates with the management server 3, and the contents of the field position / sampling control information Is checked whether the setting is changed (step S6).

If the setting of the field position / sampling control information has been changed (step S6: YES), the information acquisition processing unit 42 downloads the field position / sampling control information after the setting change, and stores the field position information. It stores in the unit 57 and the sampling control information storage unit 58 (step S7). Thus, the field position / sampling control information is updated. Here, for convenience of explanation, it is assumed that the updated sampling control information is also information as shown in FIG. Thereafter, the information acquisition processing unit 42 proceeds to step S8.

In step S6, when it is determined that the setting of the field position / sampling control information is not changed (step S6: NO), the information acquisition processing unit 42 proceeds to step S8.

In step S8, the information acquisition processing unit 42 acquires the position information of the tractor 11 from the position detection unit 51, and based on the acquired position information and the field position information in the field position information storage unit 57, the tractor 11 Determine if it is located in the field.

If it is determined that the tractor 11 is located outside the farm (step S8: NO), the information acquisition processing unit 42 acquires the position information (current position information) acquired in step S8 this time and the previous step Based on the position information (previous position information) acquired in S8, it is determined whether the tractor 11 is moving (step S9). Specifically, when the distance between the tractor position obtained from the previous position information and the tractor position obtained from the current position information is equal to or greater than a predetermined threshold, the information acquisition processing unit 42 determines that the tractor 11 is moving. If it discriminate | determines and the said distance is less than a threshold value, it will be discriminate | determined that the tractor 11 is stopping.

If it is determined that the tractor 11 is at rest (step S9: NO), the information acquisition processing unit 42 uses sampling control information corresponding to the state 1 (see FIG. 6) in the sampling control information storage unit 58. Therefore, sampling processing is performed (step S10). Specifically, the information acquisition processing unit 42 samples the sampling target corresponding to the state 1 at the sampling interval corresponding to the state 1 and stores the sampling target in the time-series information storage unit 56. In the example of FIG. 6, the information acquisition processing unit 42 samples only the position information at a sampling interval of 60 minutes and stores the sampled information in the time-series information storage unit 56.

If it is determined in step S9 that the tractor 11 is moving (step S9: YES), the information acquisition processing unit 42 corresponds to the state 2 (see FIG. 6) in the sampling control information storage unit 58. Sampling processing is performed according to the sampling control information (step S11). Specifically, the information acquisition processing unit 42 samples the sampling target corresponding to the state 2 at the sampling interval corresponding to the state 2 and stores the sampling target in the time-series information storage unit 56. In the example of FIG. 6, the information acquisition processing unit 42 samples the position information and the engine rotation speed in the operation information at a sampling interval of 1 minute and stores the sampled information in the time-series information storage unit 56.

If it is determined in step S8 that the tractor 11 is located in the field (step S8: YES), the information acquisition processing unit 42 acquires the position information acquired in step S8 this time and the previous step S8. Whether or not the tractor 11 is moving is determined based on the position information acquired in step S12 (step S12).

When it is determined that the tractor 11 is stopping (step S12: NO), the information acquisition processing unit 42 uses sampling control information corresponding to the state 3 (see FIG. 6) in the sampling control information storage unit 58. Therefore, sampling processing is performed (step S13). Specifically, the information acquisition processing unit 42 samples the sampling target corresponding to the state 3 at the sampling interval corresponding to the state 3 and stores the sampling target in the time-series information storage unit 56. In the example of FIG. 6, the information acquisition processing unit 42 samples only position information at a sampling interval of 5 minutes and stores the sampled information in the time-series information storage unit 56.

If it is determined in step S12 that the tractor 11 is moving (step S12: YES), the information acquisition processing unit 42 corresponds to the state 4 (see FIG. 6) in the sampling control information storage unit 58. A sampling process is performed according to the sampling control information (step S14). Specifically, the information acquisition processing unit 42 samples the sampling target corresponding to the state 4 in the sampling control information storage unit 58 at the sampling interval corresponding to the state 4 and stores the sampling target in the time-series information storage unit 56. In the example of FIG. 6, the information acquisition processing unit 42 samples the position information and all the operation information at a sampling interval of 10 seconds and stores the sampled information in the time-series information storage unit 56.

In the first embodiment described above, what is shown in FIG. 6 is shown as an example of the sampling control information, but the sampling control information is not limited to that shown in FIG. 6 and can be set arbitrarily.

In the first embodiment described above, the information acquisition processing unit 42 positions the sampling interval and the sampling target at the time of sampling the work vehicle side information and storing it in the time-series information storage unit 56 in the field. It is possible to switch in consideration of whether it is located outside the farmland. The work vehicle side information in the first embodiment is information including at least position information among position information and operation information of the tractor 11.

In the first embodiment described above, the information acquisition processing unit 42 performs sampling at the time of sampling the work vehicle side information in consideration of whether the key switch 24 of the tractor 11 is in the on state or the off state. It is possible to switch between intervals and sampling targets. Furthermore, in the first embodiment described above, when the key switch 24 of the tractor 11 is in the on state, the work vehicle side information is sampled in consideration of whether the tractor 11 is moving or stopping. It is possible to switch the sampling interval and the sampling target at the time of

That is, in the first embodiment described above, it is possible to switch the sampling interval and the sampling target when the work vehicle side information is sampled and stored in the time-series information storage unit 56 according to the state of the tractor 11. As a result, it becomes possible to sample a high-necessity sampling target according to the state of the tractor 11 at an appropriate sampling interval according to the state of the tractor 11.

In the first embodiment described above, the information acquisition processing unit 42 transmits the work vehicle side information stored in the time series information storage unit 56 to the management server 3 in real time, but the information acquisition processing unit 42 stores the information in the time series information storage unit 56 The received information may be transmitted to the management server 3 at certain transmission intervals. In this case, as indicated by a chain line in FIG. 5, a transmission interval storage unit 78 for storing transmission interval information is provided in the storage unit 74 of the management server 3, and transmission is also performed to the storage unit 55 of the communication terminal 2. A transmission interval storage unit 59 for storing interval information is provided. The transmission interval information is set by the management server 3 and stored in the transmission interval storage unit 78. In this case, in step S6 of FIG. 7, the information acquisition processing unit 42 communicates with the management server 3 to obtain information including field position information, sampling control information, and transmission intervals (hereinafter referred to as “download target information It is checked whether the contents of “) are changed or not. Then, when the contents of the download target information are changed, the information acquisition processing unit 42 downloads the download target information after the setting change, and the field position information storage unit 57, the sampling control information storage unit The contents of 58 and the transmission interval storage unit 59 are updated.

Furthermore, in this case, the information acquisition processing unit 42 does not transmit the data in the storage unit 55 after the processing in steps S3, S5, S10, S11, S13 or S14 is performed, as indicated by the dashed line in FIG. It is determined whether or not a time equal to or longer than the transmission interval has elapsed since the information was transmitted to the management server 3 last time (step S15). If the time greater than the transmission interval has passed (step S15: YES), the information acquisition processing unit 42 transmits the unsent information in the time-series information storage unit 56 to the management server 3 (step S4). Then, the information acquisition processing unit 42 returns to step S1. When it is determined in step S15 that the time equal to or longer than the transmission interval has not elapsed, the information acquisition processing unit 42 does not transmit the unsent information in the time-series information storage unit 56 to the management server 3. It returns to step S1.

In the first embodiment described above, the information acquisition processing unit 42 executes the information acquisition process not only when the key switch 24 of the tractor 11 is in the on state, but also when the key switch 24 is in the off state. . However, the information acquisition processing unit 42 may execute the information acquisition process only when the key switch 24 of the tractor 11 is in the on state. In this case, steps S1, S2, S3 and S5 of FIG. 7 are omitted. When the key switch 24 of the tractor 11 is turned on, the information acquisition processing unit 42 proceeds to step S6. The information acquisition processing unit 42 returns to step S6 after executing the processing of step S4.

In the first embodiment described above, the information acquisition processing unit 42 of the communication terminal 2 samples the work vehicle side information and stores it in the storage unit 55, but the information acquisition processing unit 42 samples the work vehicle side information It may be stored in the memory 41.

Next, a second embodiment of the present invention will be described.

The configuration of the information management system 1 is the same as that of the first embodiment. That is, as shown in FIG. 1, the information management system 1 includes the communication terminal 2 mounted on the tractor 11 as a work vehicle, and the management server 3. The configuration of the tractor 11 is the same as that of the first embodiment. As shown in FIGS. 2 to 4, the tractor 11 is mounted with a rotary cultivator as the working machine 13.

FIG. 8 is a block diagram showing the electrical configuration of the tractor 11 and the management server 3. In FIG. 8, parts corresponding to the parts in FIG. 4 described above are denoted by the same reference numerals as in FIG. 4.

The tractor 11 includes the tractor control device 10 and the communication terminal 2 mounted on the tractor 11 as in the first embodiment. The tractor control device 10 gives operation information to the communication terminal 2 at predetermined time intervals. The operation information includes key on / off information, engine speed, exhaust temperature, operation state of an accelerator, operation state of a brake, and the like. The key on / off information is information indicating whether the key switch 24 of the tractor 11 is on or off.

The communication terminal 2 includes a control unit 40. As in the first embodiment, the control unit 40 is connected to the position detection unit 51, the communication unit 52, the operation display unit 53, the operation unit 54, the storage unit 55, and the like. The control unit 40 includes a microcomputer provided with a CPU and a memory (ROM, RAM, etc.) 41. The control unit 40 includes a first information acquisition processing unit 42A.

The first information acquisition processing unit 42A samples the work vehicle side information including the position information detected by the position detection unit 51 and the operation information provided by the tractor control device 10 and stores the information in the storage unit 55 and the management server 3 Performs information acquisition processing for transmission. The definition of the “work vehicle side information” in the second embodiment is different from the definition of the “work vehicle side information” in the first embodiment. When the information acquisition processing unit 42 samples and stores the position information and the operation information in the storage unit 55, the information acquisition processing unit 42 stores the information in which the sampling time is added to the position information and the operation information in the storage unit 55. The operation of the first information acquisition processing unit 42A of the second embodiment is different from the operation of the information acquisition processing unit 42 of the first embodiment.

When the key switch 24 of the tractor 11 is in the on state, the first information acquisition processing unit 42A samples the work vehicle side information at the first sampling interval and stores the sampled information in the storage unit 55. Send by On the other hand, when the key switch 24 of the tractor 11 is in the off state, the first information acquisition processing unit 42A samples the work vehicle side information at the second sampling interval and stores it in the storage unit 55. Send in real time.

In this embodiment, the first sampling interval is set to 10 seconds and the second sampling interval is set to 5 minutes. The first sampling interval is preferably set to a time shorter than the second sampling interval, but these sampling intervals can be set arbitrarily.

The storage unit 55 is provided with a time-series information storage unit 56A, a sampling interval storage unit 56B, and the like. The work vehicle side information sampled by the first information acquisition processing unit 42A is stored in the time-series information storage unit 56A. The above-described first sampling interval and second sampling interval are stored in the sampling interval storage unit 56B.

The management server 3 includes a control unit 60. As in the first embodiment, a communication unit 71, an operation display unit 72, an operation unit 73, a storage unit 74, and the like are connected to the control unit 60.

The control unit 60 includes a microcomputer provided with a CPU and a memory (ROM, RAM, etc.) 61. The control unit 60 includes an information temporary storage processing unit 62A and a second information acquisition processing unit 62B. The information temporary storage processing unit 62A is for temporarily storing work vehicle side information (position information and operation information for each time) received from the communication terminal 2 in a memory (specifically, a RAM as a work memory) 61. Perform temporary information storage processing. The second information acquisition processing unit 62B samples the work vehicle side information stored in the memory every time the work vehicle side information for a predetermined time (for example, one day) is stored in the memory 61 and stores the storage unit 74. Perform information acquisition processing for storing in

The storage unit 74 is provided with a time-series information storage unit 75, a field position information storage unit 76, a sampling control information storage unit 77, and the like. The time-series information storage unit 75 stores the work vehicle side information sampled by the second information acquisition processing unit 62B.

In the field position information storage unit 76, there is position information (hereinafter referred to as "field position information") for specifying an area of a field where a work (in this example, a tilling work) using the tractor 11 may be performed. It is memorized. The sampling control information storage unit 77 stores control information (hereinafter referred to as “sampling control information”) regarding a sampling interval and information to be sampled (information to be sampled) when the second information acquisition processing unit 62 B samples information. Ru. An example of the sampling control information is shown in FIG. 6 described above.

Hereinafter, the operation of the first information acquisition processor 42A of the communication terminal 2, the operation of the information temporary storage processor 62A of the management server 3, and the operation of the second information acquisition processor 62B of the management server 3 will be described in detail.

FIG. 9 is a flowchart for explaining the operation of the first information acquisition processing unit 42A of the communication terminal 2.

First, the first information acquisition processing unit 42A reads the first sampling interval and the second sampling interval stored in the sampling interval storage unit 56B into a memory (specifically, a RAM as a working memory) (step S21).

Next, the first information acquisition processing unit 42A acquires key on / off information from the tractor control device 10, and based on the acquired key on / off information, whether the key switch 24 of the tractor 11 is on or off Is determined (step S22).

If the key switch 24 of the tractor 11 is in the on state (step S22: YES), the first information acquisition processing unit 42A proceeds to step S23. In step S23, the first information acquisition processing unit 42A samples the work vehicle side information (position information and operation information detected by the position detection unit 51) at a first sampling interval (10 seconds in this example), It is transmitted to the management server 3 at the same time as it is stored in the time series information storage unit 56A. Then, the first information acquisition processing unit 42A returns to step S22.

If it is determined in step S22 that the key switch 24 of the tractor 11 is in the off state (step S22: NO), the first information acquisition processing unit 42A proceeds to step S24. In step S24, the first information acquisition processing unit 42A samples the work vehicle side information (position information and operation information) at the second sampling interval (five minutes in this example), and stores it in the time-series information storage unit 56A. At the same time, it transmits to the management server 3. Then, the first information acquisition processing unit 42A returns to step S22.

FIG. 10 is a flowchart showing the operation of the information temporary storage processing unit 62A of the management server 3.

The information temporary storage processing unit 62A waits for transmission of work vehicle side information (position information and operation information for each time) from the communication terminal 2 (step S31). When work vehicle side information is transmitted from the communication terminal 2 (step S31: YES), the information temporary storage processing unit 62A receives the transmitted work vehicle side information, and the memory (specifically, work memory) As the RAM) (step S32). Then, the information temporary storage processing unit 62A returns to step S31.

11A and 11B are flowcharts illustrating the operation of the second information acquisition processing unit 62B of the management server 3.

It is assumed that the sampling control information storage unit 77 in the storage unit 74 stores the sampling control information shown in FIG.

The second information acquisition processing unit 62B determines whether it is time to start the information acquisition process (step S41). This determination may be performed, for example, by determining whether or not a predetermined time has elapsed from the start time of the previous information acquisition process, or whether or not the current time has reached a preset time. It may be performed by discrimination.

Here, for convenience of description, the second information acquisition processing unit 62B determines whether the current time has reached a preset time (for example, midnight), and the current time reaches a preset time. When it is determined, it is determined that it is time to start the information acquisition process. Further, as described later, when the information acquisition process is completed, the time-series information stored in the memory before the time when the information acquisition process is started is erased.

When it is determined that it is not the timing to start the information acquisition process (step S41: NO), the second information acquisition processing unit 62B returns to step S41. If it is determined in step S41 that it is time to start the information acquisition process (step S41: YES), the second information acquisition processing unit 62B proceeds to step S42.

In step S42, the work vehicle side information included in the processing object data, with the time series information consisting of the work vehicle side information stored in the memory from the time when the previous information acquisition processing was started to the present being the processing object data The work vehicle side information with the earliest time among them is set as attention data (step S42). Below, the time corresponding to attention data may be called attention time.

Next, the second information acquisition processing unit 62B determines whether the key switch 24 is on or off based on key on / off information in the data of interest (step S43). If it is determined that the key switch 24 is in the off state (step S43: NO), the second information acquisition processing unit 62B proceeds to step S44. In step S44, based on the position information in the data of interest and the field position information in the field position information storage unit 76, the second information acquisition processing unit 62B determines whether the tractor 11 was located in the field at the time of interest Determine if it is not.

When it is determined that the tractor 11 is located out of the field at the attention time (step S44: NO), the second information acquisition processing unit 62B sets the state 5 (see FIG. 6) to the tractor at the current attention time. The state of 11 is stored in a predetermined area in the memory 61 (hereinafter, this predetermined area may be referred to as "time / state storage area") (step S45).

Next, the second information acquisition processing unit 62B determines whether or not work vehicle side information whose time is later than the attention data is present in the processing target data (step S46). If there is work vehicle-side information at a later time than the data of interest in the processing target data (step S46: YES), the second information acquisition processing unit 62B performs the operation of the time later than the data of interest. Vehicle side information is set as attention data (step S47). Then, the process returns to step S43.

When it is determined in step S44 that the tractor 11 is located in the field (step S44: YES), the second information acquisition processing unit 62B sets the state 6 (see FIG. 6) to the current attention time. The state of the tractor 11 is stored in the time / state storage area in the memory 61 (step S48).

If it is determined in step S43 that the key switch 24 is in the on state (step S43: YES), the second information acquisition processing unit 62B proceeds to step S49. In step S49, based on the position information in the data of interest and the field position information in the field position information storage unit 76, the second information acquisition processing unit 62B determines whether the tractor 11 was located in the field at the time of interest Determine if it is not.

When it is determined that the tractor 11 is located out of the field at the attention time (step S49: NO), the second information acquisition processing unit 62B determines the position information (current position information) in the current attention data, Based on the previous position information in the attention data (previous position information), it is determined whether or not the tractor 11 is moving at the attention time (step S50). Specifically, if the distance between the tractor position obtained from the previous position information and the tractor position obtained from the current position information is equal to or greater than a predetermined threshold value, the second information acquisition processing unit 62B performs the tractor 11 at the attention time. Is determined to be moving, and if the distance is less than the threshold value, it is determined that the tractor 11 is stopped.

When it is determined that the tractor 11 is stopping (step S50: NO), the second information acquisition processing unit 62B sets the state 1 (see FIG. 6) as the state of the tractor 11 at the current attention time. It is stored in the time / state storage area in the memory 61 (step S51).

When it is determined in step S50 that the tractor 11 is moving (step S50: YES), the second information acquisition processing unit 62B sets the state 2 (see FIG. 6) to the state of the tractor 11 at the attention time. And stores it in the time / state storage area in the memory 61 (step S52).

If it is determined in step S49 that the tractor 11 is located in the field (step S49: YES), the second information acquisition processing unit 62B determines the position information (current position information) in the current data of interest. Whether or not the tractor 11 is moving at the attention time is determined based on the previous position information (preceding position information) in the attention data (step S53).

When it is determined that the tractor 11 is stopping (step S53: NO), the second information acquisition processing unit 62B sets the state 3 (see FIG. 6) as the state of the tractor 11 at the current attention time. It is stored in the time / state storage area in the memory 61 (step S54).

If it is determined in step S53 that the tractor 11 is moving (YES in step S53), the second information acquisition processing unit 62B displays the state 4 (see FIG. 6) as the tractor 11 at the current attention time. Are stored in the time / state storage area in the memory 61 (step S55).

If it is determined in step S46 that there is no work vehicle side information at a later time than the data of interest in the processing object data (step S46: NO), the second information acquisition processing unit 62B It transfers to step S56. In step S56, the second information acquisition processing unit 62B determines the state of the tractor 11 for each time stored in the time / state storage area in the memory 61 in steps S45, S48, S51, S52, S54 or S55 (state 1 to Based on 6) and the sampling control information in the sampling control information storage unit 77, the work vehicle side information in the processing target data is sampled and stored in the time series information storage unit 75.

Specifically, the second information acquisition processing unit 62B determines that the time from the earliest time to the latest time of the work vehicle side information (time-series information) included in the processing target data is the same tractor state continuously in time The time periods are divided into a plurality of time zones by combining them into one time zone. Then, for each divided time zone, the second information acquisition processing unit 62B follows the sampling information (sampling target and sampling period) corresponding to the tractor state (states 1 to 6) allocated to that time zone. The work vehicle side information in the divided time zone is sampled and stored in the time series information storage unit 75.

Thereafter, the second information acquisition processing unit 62B erases the current processing target data in the memory (step S57). Then, the second information acquisition processing unit 62B returns to step S41.

In the second embodiment described above, the information temporary storage processing unit 62A of the management server 3 temporarily stores in the memory the work vehicle side information including the position information and the operation information transmitted from the communication terminal 2. Then, the second information acquisition processing unit 62B of the management server 3 samples the work vehicle side information temporarily stored in the memory and stores it in the time series information storage unit 76.

The second information acquisition processing unit 62B samples the work vehicle side information in the memory in consideration of the determination result of whether the tractor 11 is in the field or out of the field based on the work vehicle side information in the memory It is possible to switch between sampling intervals and sampling targets. In addition, the second information acquisition processing unit 62B determines the work in the memory in consideration of the determination result of whether the key switch 24 of the tractor 11 is on or off based on the work vehicle side information in the memory. It is possible to switch the sampling interval and the sampling target when sampling the vehicle side information. Furthermore, in the second embodiment described above, the work vehicle side information in the memory is determined in consideration of the determination result whether the tractor 11 is moving or stopping based on the work vehicle side information in the memory. It is possible to switch the sampling interval and the sampling target at the time of sampling.

That is, in the second embodiment described above, the state of the tractor 11 is determined from the work vehicle side information in the memory, and the work vehicle side information in the memory is sampled according to the determined state of the tractor 11 It becomes possible to switch the sampling interval and the sampling target at the time of storing in the sequence information storage unit 75. As a result, it becomes possible to sample a high-necessity sampling target according to the state of the tractor 11 at an appropriate sampling interval according to the state of the tractor 11.

In the second embodiment described above, not only when the key switch 24 of the tractor 11 is in the on state, but also when the key switch 24 is in the off state, the first information acquisition processing unit 42A samples work vehicle side information Then, they are sent to the management server 4. However, the first information acquisition processing unit 42A may sample work vehicle side information and transmit it to the management server 4 only when the key switch 24 of the tractor 11 is in the on state. The sampling interval in this case is set to, for example, 10 seconds. In this case, steps S43, S44, S45 and S48 of FIG. 11 are omitted. Then, when the process of step S42 is performed, the second information acquisition processing unit 62B of the management server 3 proceeds to step S49.

As mentioned above, although embodiment of this invention was described, this invention can also be implemented with another form. For example, although the GNSS single positioning system is used as the positioning system used for the communication terminal 2 in the above-described embodiment, other than the single positioning system such as RTK-GNSS (real time kinematic GNSS) etc. A positioning system may be used.

In the above embodiment, the work vehicle is a tractor, but the work vehicle may be a rice transplanter, a combine, a civil engineering / construction work device, a snowplow, a riding type work machine, a walking type work machine or the like.

In addition, various design changes can be made within the scope of matters described in the claims.

Although the embodiments of the present invention have been described in detail, these are merely specific examples used for clarifying the technical contents of the present invention, and the present invention is construed as being limited to these specific examples. It is not to be construed that the scope of the present invention is limited only by the appended claims.

This application corresponds to Japanese Patent Application No. 2017-221084 submitted to the Japan Patent Office on November 16, 2017, the entire disclosure of that application being incorporated herein by reference.

1 information management system 2 communication terminal 3 management server 10 tractor control device 11 tractor (work vehicle)
40 control unit 41 memory 42 information acquisition processing unit 42A first information acquisition processing unit 51 position detection unit 52 communication unit 55 storage unit 56 time series information storage unit 57 field position information storage unit 58 sampling control information storage unit 60 control unit 61 memory 62 information management unit 62A information temporary storage processing unit 62B second information acquisition processing unit 75 time series information storage unit 76 field position information storage unit 77 sampling control information storage unit

Claims

A detection unit that detects position information representing a position of a work vehicle using a satellite positioning system;
An information acquisition processing unit that samples position information detected by the detection unit and stores the information in a storage unit;
The information acquisition processing unit determines whether the work vehicle is located in the field or outside the field based on the position information detected by the detection unit, and in consideration of the determination result, An information acquisition apparatus configured to be capable of switching a sampling interval when sampling the position information.
The information acquisition processing unit determines whether the key switch of the work vehicle is in the key-on state or the key-off state, and can also change the sampling interval when sampling the position information in consideration of the determination result as well The information acquisition device according to claim 1, wherein the information acquisition device is configured to:
When it is determined that the key switch is in the key-on state, the information acquisition processing unit determines whether the work vehicle is moving or stopping, and also considering the determination result. The information acquisition device according to claim 2, wherein the sampling interval can be switched when sampling position information.
Whether the information acquisition processing unit stores the operation information of the work vehicle together with the position information in the storage unit in consideration of the determination result of whether the work vehicle is moving or stopping The information acquisition apparatus according to claim 3, wherein the information acquisition apparatus is configured to be selectable.
The information acquisition processing unit determines whether the work vehicle is moving or stopping, and in consideration of the determination result, the sampling interval at the time of sampling the position information can be switched. The information acquisition apparatus according to claim 1.
A communication terminal provided on the work vehicle side,
A management server capable of communicating with the communication terminal;
The communication terminal is
A detection unit that detects position information representing the position of the work vehicle using a satellite positioning system;
And a first information acquisition processing unit that acquires work vehicle side information including at least position information detected by the detection unit and transmits the acquired information to the management server.
The management server is
An information temporary storage processing unit that receives the work vehicle side information transmitted from the terminal device and temporarily stores it in a memory;
A second information acquisition processing unit that samples at least position information in the work vehicle side information stored in the memory and stores the sampled information in a storage unit;
The second information acquisition processing unit determines whether the work vehicle is located outside the field where it is located in the field based on the position information in the work vehicle side information stored in the memory, and An information management system configured to be capable of switching a sampling interval when sampling at least position information in the work vehicle side information in consideration of a determination result.
The work vehicle side information includes at least the position information and key on / off information indicating whether the key switch of the work vehicle is in the key on state or the key off state.
The second information acquisition processing unit determines whether the key switch is in the key-on state or the key-off state based on key on / off information in the work vehicle side information stored in the memory, and the determination result is The information management system according to claim 6, wherein the sampling interval at the time of sampling at least position information in the work vehicle side information is switchable in consideration of the above.
When it is determined that the key switch is in the key-on state, the second information acquisition processing unit is moving the work vehicle based on the position information in the work vehicle side information stored in the memory. The present invention is configured to be able to switch between sampling intervals when sampling at least position information in the work vehicle side information in consideration of the determination as well as in consideration of the determination result. Information management system.
The work vehicle side information includes at least the position information and operation information of the work vehicle including the key on / off information,
The second information acquisition processing unit, in consideration of the determination result as to whether the work vehicle is moving or stopping, stores at least a part of operation information of the work vehicle together with the position information. The information management system according to claim 8, wherein whether or not to store is selectable.
The second information acquisition processing unit determines whether the work vehicle is moving or stopped based on the position information in the work vehicle side information stored in the memory, and also determines the determination result. The information management system according to claim 6, wherein the sampling interval at the time of sampling at least position information in the work vehicle side information is switchable in consideration.