JP6286249B2 - Work machine access point device and work machine communication system having work machine access point device - Google Patents

Description

  The present invention relates to a work machine access point device for wireless communication between a work machine such as an agricultural machine such as a tractor, a combiner, a rice transplanter, a backhoe construction machine, and a portable terminal, and a work provided with the work point access point apparatus. The present invention relates to a communication system.

In recent years, mobile terminals such as smartphones and tablets have become widespread. A technology for connecting such a portable terminal to a working machine that performs work by wireless communication and transmitting and receiving various data has been developed.
Patent Document 1 includes a communication processing unit that outputs a beacon and performs communication processing with a portable terminal, and a processing suspension unit that performs suspension processing to pause the communication processing unit, and performs communication between the work machine and the portable terminal. An access point device for a work machine for performing is disclosed.

Japanese Patent Application Laid-Open No. 2014-042508

  In Patent Literature 1, a mobile terminal receives an SSID output to the outside from an access point device mounted on a work machine, and the mobile terminal is connected to a predetermined access point device using this SSID as a key. . As described above, the data of the work implement can be acquired by connecting the portable terminal to the access point device. However, in order to acquire the data of the work implement, it is always necessary to establish a connection between the mobile terminal and the access point device, and it may be difficult to quickly obtain the status of the work implement.

  Accordingly, in view of the above problems, the present invention provides a work implement access point device capable of quickly and easily acquiring the state of the work implement and a work implement communication system including the work implement access point device. It is intended.

The technical means of the present invention for solving this technical problem is characterized by the following points.
A work machine access point device for wirelessly connecting an in- vehicle network constructed on a work machine and a mobile terminal on an external network different from the in-vehicle network, and obtaining a state of acquiring the state of the work machine An identifier setting unit that sets a first identifier that includes a state indicated by the second identifier for connection of the wireless communication and includes the state of the work machine acquired by the state acquisition unit And a communication unit capable of transmitting the first identifier set in step 1 and transmitting the second identifier.

Before Symbol identifier setting unit, and performs setting of the first identifier when the state change of the working machine.
A working machine communication system comprising: a work machine access point device for wirelessly connecting a vehicle-mounted network constructed on a work machine and a mobile terminal on an external network different from the vehicle-mounted network; and a mobile terminal. The work machine access point device includes a state acquisition unit that acquires the state of the work machine, a state of the work machine acquired by the state acquisition unit, and a second identifier for connecting the wireless communication An identifier setting unit that sets a first identifier that includes the character indicated by , and a communication unit that can transmit the first identifier set by the identifier setting unit and can transmit the second identifier. It is characterized by.

Before Symbol mobile terminal is characterized in that it comprises a display unit for displaying the first identifier.

According to the present invention, the state of the work implement can be acquired quickly and easily. For example, since the first identifier can be used for monitoring and the second identifier can be used for data communication, the state of the work machine can be grasped while acquiring data. Even when data is not acquired, the state of the work implement can be grasped by the first identifier.

In addition, it is possible to quickly notify the outside that the state of the work machine has changed.
In addition, the state of the work implement can be grasped only by looking at the display unit of the mobile terminal.

It is a whole figure of the communication system of the working machine in 1st Embodiment. It is a flowchart which shows the flow which connects a portable terminal to an access point apparatus. It is a figure which shows the relationship between a 1st identifier and fertilizer loading. It is a general view of the communication system of the working machine in 2nd Embodiment. It is the whole tractor side view.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[First Embodiment]
FIG. 1 shows an overall view of a communication system for a work machine.
As shown in FIG. 1, a work machine communication system 1 includes a work machine access point device 4 mounted on a work machine 2 such as an agricultural machine or a construction machine, and wireless communication with the work machine access point device 4. It is a system provided with the portable terminal 3 to perform. In the work machine communication system 1, for example, the mobile terminal 3 acquires information on the work machine 2 via the work machine access point device 4 by connecting the mobile terminal 3 to the work machine access point device 4. can do. On the other hand, the work machine 2 can acquire various signals from the portable terminal 3 via the work machine access point device 4.

Hereinafter, the working machine is a tractor which is one of the agricultural machines, and the working machine communication system and the working machine access point device will be described in detail. For convenience of explanation, the explanation will be made by referring to the “work machine access point device” as “access point device”.
As shown in FIG. 5, the tractor 2 is configured by mounting an engine 11, a transmission device 12, and the like on a traveling vehicle (traveling vehicle body) 10 having front and rear wheels. A three-point link mechanism 13 and the like are provided at the rear portion of the traveling vehicle 10 so as to be lifted and lowered. A working device 14 such as a tilling device, a fertilizer spraying device, a pesticide spraying device, a sowing spraying device, and a harvesting device is detachably attached to the three-point link mechanism 13. In addition, an independently mounted cabin 15 is provided behind the engine 11, and a driver's seat 16 is provided in the cabin 15. A display device 18 that displays various information of the tractor 2 is provided around the driver's seat 16.

  A plurality of electronic devices, that is, electrical components are mounted on the tractor 2. This electronic device is a device for operating the tractor 2, and includes, for example, a sensor (accelerator pedal sensor, lever detection sensor, crank position sensor, fuel sensor, water temperature sensor, etc.), switch (ignition switch, parking brake switch, PTO switch, etc.), a display device constituted by a display panel, a control device for controlling the tractor body, a control device for controlling the work device 14, and the like. The plurality of electronic devices are connected to a communication line, and thereby, an in-vehicle network N1 is configured in the tractor 2. The in-vehicle network N1 is, for example, a CAN (Controller Area Network), a LIN (Local Interconnect Network), a FlexRay, or the like.

In the in-vehicle network N1, a detection signal detected by a sensor, a switch signal indicating a switch state, and an operation unit (for example, an engine, a solenoid valve, a pump, or the like) that operates the tractor 2 is operated by control of a control device. Command signals (control signals) and the like are output. In addition, a notification signal for notifying a warning or a failure is also output to the in-vehicle network N1.
FIG. 1 is a diagram illustrating a plurality of control devices, an in-vehicle network, and a work machine access point device.

  As shown in FIG. 1, the tractor 2 includes, as the control device 20, for example, a first control device 20 </ b> A that controls the engine 11, a second control device 20 </ b> B that controls the transmission 12 and the three-point link mechanism 13, A third control device 20C that controls the display device 18 is provided. The control devices 20 such as the first control device 20A, the second control device 20B, and the third control device 20C are connected to sensors, switches, and the like, and switches that indicate detection signals and switch states detected by the sensors. The signal is output to the in-vehicle network N1 via the control device 20.

  The first control device 20A includes, for example, an accelerator pedal sensor that detects an operation amount of an accelerator pedal when an accelerator pedal is operated, a lever detection sensor that detects a shift lever position when a shift lever for shifting is operated, and a crank position The engine speed and the like are controlled based on a signal from a crank position sensor or the like that detects this. The second control device 20B controls the lifting and lowering of the three-point link mechanism 13 based on a position lever sensor or the like that detects an operation amount of an operation member (operation lever) that operates the three-point link mechanism 13. The third control device 20C controls the display device 18 based on signals from sensors, switches, and the like. For example, the movement of a pointer meter provided in the display device 18, LED on / off, liquid crystal Controls the display of the display unit. The control of the first control device 20A, the second control device 20B, and the third control device 20C is not limited to that described above.

As shown in FIG. 1, the access point device 4 is a device that connects the in-vehicle network N <b> 1 of the tractor 2 and a network (external network) outside the tractor 2. The access point device 4 includes a first communication unit (communication module) 30 that performs wireless communication with the mobile terminal 3, a control unit 31 that controls the first communication unit 30, and a first storage unit 32. Yes.
The first communication unit 30 performs wireless communication based on Wi-Fi (registered trademark) conforming to the IEEE 802.11 series which is a communication standard. Specifically, the first communication unit 30 converts the data (signal) received from the outside into the communication method of the access point device 4 and outputs it to the control unit 31 or the data (signal) transmitted from the control unit 31. Change to the IEEE802.11 series communication method and output to the outside. That is, the first communication unit 30 outputs data (signal) received from the outside to the control unit 31 or transmits data (signal) output from the control unit 31 to the outside.

The control unit 31 converts the data received from the in-vehicle network N1 into the communication method of the access point device 4 and transmits the data received from the in-vehicle network N1 to the first communication unit 30. The operation of the control unit 31 is not limited to that described above.
The 1st memory | storage part 32 is comprised from the non-volatile memory. The first storage unit 32 stores communication setting information related to wireless communication connection and the like, and various operation information acquired from the tractor 1. Specifically, the first storage unit 32 has a unique MAC address set on the network, an identifier for identifying the access point device 4 (for example, a service set identifier, that is, SSID), an encryption key (network key). Etc. are stored as communication setting information. Moreover, the 1st memory | storage part 32 memorize | stores the detection signal, switch signal, command signal, etc. which were acquired via the vehicle-mounted network as operation information.

As shown in FIG. 1, the mobile terminal 3 is configured by, for example, a smartphone (multifunctional mobile phone), a tablet PC, or the like having a relatively high computing ability. The mobile terminal 3 includes a second communication unit (communication means) 40 and a second storage unit 41.
The second communication unit 40 includes at least a communication device that performs wireless communication with the access point device 4. The second communication unit 40 performs short-distance wireless communication with the access point device 4 using, for example, IEEE 802.11 series Wi-Fi (Wireless Fidelity, registered trademark) which is a communication standard.

  In addition to the short-range wireless communication, the second communication unit 40 may perform wireless communication with the server 5 or the like through a data communication network, a mobile phone communication network, or the like. Further, the mobile terminal 3 receives a signal (GPS satellite position, transmission time, correction information, etc.) transmitted from a positioning satellite (for example, GPS satellite), and based on the received signal (for example, latitude) , Longitude) may be included. When the position detection unit 42 is provided, the farm worker can detect the position (worker position) of the farm worker during the farm work by holding the mobile terminal 3 during the farm work.

The second storage unit 41 is configured by a nonvolatile memory or the like, and stores data such as operation information transmitted from the access point device 4. Alternatively, the second storage unit 41 stores the data transmitted from the server 5.
FIG. 2 is a flowchart for connecting the portable terminal to the access point apparatus. As shown in FIG. 2, for example, when the ignition switch of the tractor 2 is turned on, the access point device 4 is activated (S1), and the first communication unit 30 refers to the communication setting information in the first storage unit 32, A service set identifier (SSID) is output to the outside (S2). When the mobile terminal 3 receives the SSID transmitted from the first communication unit 30 to the outside (S3), the mobile terminal 3 displays the SSID on the display unit 43 configured by a liquid crystal panel or the like (S3), and also displays a network key on the display unit 43. Is displayed (S5). After the network key is input on the input screen of the portable terminal 3, the network key is transmitted from the portable terminal 3 to the access point device 4 (S6), and the network key transmitted from the portable terminal 3 to the access point device 4 is transmitted. When input, the first communication unit 30 or the control unit 31 collates (authenticates) the network key transmitted from the portable terminal 3 with the network key stored in the first storage unit 32 (S7). Here, when the network verification (authentication) is established, the first communication unit 30 or the control unit 31 permits data communication between them (S8). On the other hand, when collation between the network key from the portable terminal 3 and the network key stored in the first storage unit 32 is not established, the first communication unit 30 or the control unit 31 establishes wireless communication with the portable terminal 3. Data communication is not permitted. Note that the process of establishing wireless communication between the first communication unit 30 and the mobile terminal 3 is not limited to the above-described process, and the process of displaying the network key on the input screen may be omitted.

  As described above, when wireless communication between the access point device 4 and the portable terminal 3 is established, the operation information stored in the first storage unit 32 may be transmitted to the portable terminal 3 via the first communication unit 30. it can. The operation information acquired by the mobile terminal 3 is stored in the second storage unit 41. Moreover, the data of the portable terminal 3 can be transmitted to electronic devices such as the first communication unit 30, the control unit 31, and the control device 20.

  The operation information stored in the second storage unit 41 can be transmitted to the server 5 by the second communication unit 40 of the mobile terminal 3 through the mobile phone communication network or the data communication network. In the server 5, the operation information transmitted from the mobile terminal 3 is stored in the operation information database 6. The server 5 can organize and analyze the operation information using the operation information stored in the operation information database 6.

As described above, according to the communication system 1 of the working machine, bidirectional data communication can be performed by connecting the mobile terminal 3 to the access point device 4. That is, by connecting the mobile terminal 3 to the access point device 4, data such as operation information can be acquired.
As described above, the data of the tractor 2 can be acquired by performing the connection process for connecting the mobile terminal 3 to the access point device 4. Data can be obtained.

Hereinafter, data acquisition by a method that does not perform connection processing will be described.
The access point device 4 includes a state acquisition unit 33 and an identifier setting unit 34. The state acquisition unit 33 and the identifier setting unit 34 are configured by a program stored in the control unit 31.
The state acquisition unit 33 acquires various states of the tractor 2 and acquires operation information (detection signal, switch signal, command signal, notification signal) output to the in-vehicle network N1, that is, the state of the tractor. To do. For example, the state acquisition unit 33 acquires a notification signal indicating that the fuel is insufficient.

  The identifier setting unit 34 sets the state of the tractor acquired by the state acquisition unit 33 as a first identifier that can be acquired by the mobile terminal 3. The first identifier is a service set identifier (SSID), and the state of the tractor is included in the service set identifier. When the state acquisition unit 33 acquires a notification signal indicating that the fuel is insufficient, the identifier setting unit 34 indicates that the fuel is insufficient with alphanumeric characters, for example, “TRACTOR-1005”. , “TRACTOR-1005” is set as a first identifier which is a service set identifier. Specifically, when setting the first identifier, the identifier setting unit 34 uses the character (TRAACTOR) in the front (before the hyphen) of the first identifier as the same character as the second identifier. And the identifier setting part 34 has set the 1st identifier by adding the character of "1005" which shows that fuel is insufficient after the character of the front part. Thereby, the operator can recognize from the characters indicated at the front of the first identifier that the tractor 2 in which the access point device 4 indicated by the second identifier is mounted. Although it is easy to determine the transmission source by incorporating the same character as the second identifier of the access point device 4 that is the transmission source in the first identifier, the same character as the second identifier may not be included in the first identifier. .

After setting the first identifier by the identifier setting unit 34, the set first identifier, that is, “TRACTOR-1005” is transmitted to the outside by the first communication unit 30.
Next, the first identifier will be described in more detail.
As described in FIG. 2, when the mobile terminal 3 and the access point device 4 are connected, a service set identifier (referred to as a second identifier) is transmitted from the access point device 4 to the outside. The second identifier is an identifier for data communication that establishes wireless communication between the mobile terminal 3 and the access point device 4. On the other hand, the first identifier set by the identifier setting unit 34 is an identifier indicating the state of the tractor and is an identifier for monitoring.

  The first communication unit 30 of the access point device 4 transmits a first identifier, which is a monitoring identifier, to the outside, in addition to the second identifier, which is an identifier for data communication. Here, when the mobile terminal 3 is in a communication area capable of receiving the first identifier and the second identifier output from the access point device 4, the display unit 43 of the mobile terminal 3 displays the access point device 4. Two identifiers (a first identifier and a second identifier) are displayed regardless of the presence or absence of connection. For example, the first identifier “TRAACTOR-1005” and the second identifier “TRAACTOR” are displayed on the display unit 43 of the mobile terminal 3.

  In a state where the mobile terminal 3 and the access point device 4 are not connected, when the operator who has the mobile terminal 3 selects “TRAACTOR” that is the second identifier, the access point device 4 that has transmitted the second identifier Can be connected to the portable terminal 3, whereby the portable terminal 3 can obtain the operation information. On the other hand, since the first identifier “TRACTOR-1005” is displayed on the display unit 43 of the mobile terminal 3, the operator who has the mobile terminal 3 lacks fuel by looking at the first identifier. You can grasp what you are doing.

That is, according to the communication system 1 of the work machine, the mobile terminal 3 can be connected to the access point device 4 by the second identifier, while the state of the tractor 2 can be grasped by the first identifier.
Now, when the state of the tractor 2 changes, the first identifier changes according to the state of the tractor 2. For example, when the working device 14 attached to the rear part of the tractor 2 is a fertilizer spraying device, the first identifier changes according to the fertilizer loading amount of the fertilizer spraying device. The description will be continued assuming that the fertilizer load is output to the in-vehicle network from a control device, a sensor, or the like that controls the fertilizer application device (working device 14).

  FIG. 3 is a diagram showing changes in the first identifier due to changes in the fertilizer load. As shown in FIG. 3, in the section from the time point P1 to the time point P2, the fertilizer is filled in the fertilizer tank, and the fertilizer loading amount is sufficient. The state acquisition unit 33 acquires from the detection signal flowing through the in-vehicle network that the fertilizer loading amount is sufficient, and the identifier setting unit 34 indicates a first identifier (for example, “ “TRAACTOR-N10F” is set. Then, the first communication unit 30 transmits “TRAACTOR-N10F”, which is the first identifier, to the outside. At the time point P2, the fertilizer loading amount is the total loading amount. When the state acquisition unit 33 acquires a detection signal that is 25% or less, the identifier setting unit 34 changes the first identifier (for example, “TRACTOR-N10qtr”) indicating that the amount of fertilizer mounted is reduced. Then, the identifier setting unit 34 transmits “TRACTOR-N10qtr”, which is the first identifier after the change, to the outside. When the state acquisition unit 33 acquires the detection signal whose amount has disappeared, the identifier setting unit 34 changes the first identifier (for example, “TRACTOR-N10E”) indicating that the fertilizer loading amount has disappeared. 34 transmits “TRACTOR-N10E”, which is the first identifier after the change, to the outside.

  In this way, by changing the first identifier according to the change in the fertilizer load, the mobile terminal 3 side simply displays the first identifier transmitted from the access point device 4 on the display unit 43. The mobile terminal 3 can grasp what state the amount is. For example, when performing a spraying operation between an operator (operator) who operates the tractor 2 and sprays fertilizer and an operator (assistant) who performs an auxiliary operation around the field, the mobile terminal 3 of the assistant Since the first identifier indicating that the fertilizer load is reduced is displayed, the assistant can perform the work of preparing the fertilizer before the fertilizer runs out.

  As described above, since the access point device 4 includes the state acquisition unit 33, the identifier setting unit 34, and the first communication unit 30, the first identifier (for example, the service) that allows the portable terminal 3 to acquire the state of the work machine. The set first identifier can be transmitted separately from the second identifier for wireless communication connection. Therefore, wireless communication can be established between the mobile terminal 3 and the access point device 4 using the second identifier, and data communication can be performed between the two. On the other hand, since the first identifier can be displayed separately from the second identifier on the mobile terminal 3 side, the worker can grasp the state of the work machine by looking at the first identifier. be able to. In addition, as a method of transmitting the state of the work machine toward the mobile terminal 3, since the state of the work machine is represented by a service set identifier and the service set identifier is transmitted to the mobile terminal 3, the worker's state is externally transmitted. It is not necessary to construct a new system (apparatus) for transmitting the status, and the status of the work machine can be easily transmitted to the mobile terminal 3. The first identifier set by the identifier setting unit 34 is a service set identifier and can be transmitted to the outside as a broadcast signal, so that various information can be transmitted over a wide range.

Further, the identifier setting unit 34 sets the changed state of the work machine to the first identifier when the state of the work machine changes, and directs the set first identifier to the portable terminal by the communication unit, so that the work machine changes. This can be immediately grasped by the portable terminal 3.
Furthermore, since the same character or the like as the second identifier used in wireless communication is used when setting the first identifier, the relevance between the first identifier and the second identifier can be grasped. The access point device 4 that has transmitted the status of the work implement, that is, the work implement can be identified simply by looking at the character of the first identifier common to the work implement.
[Second Embodiment]
The second embodiment shows an embodiment when the access point device 4 is mounted on an agricultural machine and the data of the agricultural machine is collected. A configuration different from the first embodiment will be described.

As illustrated in FIG. 4, the access point device 4 includes an information collection unit 39 that collects information about agriculture (referred to as farm work data) among the operation information (worker state) output to the in-vehicle network. The information collecting unit 39 is composed of a program stored in the control unit 31.
Items to be collected in advance are set in the information collection unit 39, and when the agricultural machine is operated, various farm work data are automatically collected automatically based on the preset items. For example, when a cultivator is connected to the rear part of the tractor 2 as the working device 14 and the tractor 2 is operated, data such as the rotational speed of the rotary, the load of the rotary, the engine rotational speed, the vehicle speed, and the tilling depth are output to the in-vehicle network. Is done. The information collecting unit 39 acquires data such as the rotational speed of the rotary, the load of the rotary, the engine rotational speed, the vehicle speed, and the tilling depth as farm work data. The rotary speed, rotary load, engine speed, vehicle speed, tilling depth, and the like are detected by an electronic device such as a sensor mounted on the tractor 2 or the tilling device.

  In addition, when the working device 14 is a fertilizer spraying device, a pesticide spraying device, or a seeding spraying device, data such as vehicle speed, engine speed, spraying amount (fertilizer spraying amount, pesticide spraying amount, seeding spraying amount), etc. are on the in-vehicle network. The information collecting unit 39 acquires the vehicle speed, the engine speed, the fertilizer application amount, the pesticide application amount, and the seeding application amount as farm work data. Note that the fertilizer application amount, the agricultural chemical application amount, the seeding application amount, and the like are also detected by the tractor 2, the fertilizer application device, the agricultural chemical application device, the electronic device mounted on the seeding application device, and the like. Alternatively, when the work device 14 is a harvesting device, data such as vehicle speed, engine speed, and harvest amount are output on the in-vehicle network, and the information collection unit 39 uses the vehicle speed, engine speed, and harvest amount as farm work data. get. The amount of harvest is also detected by an electronic device attached to the tractor or harvesting device.

  The farm work data collected by the information collection unit 39 is temporarily stored in the first storage unit 32. The first storage unit 32 sequentially stores farm work data when the tractor 2 is operated. The information collecting unit 39 calculates the collected farm work data into communication data. The farm work data in the in-vehicle network flows at intervals of several ms, and the amount of farm work data may be enormous. Therefore, the information collection unit 39 calculates the collected farm work data by statistical processing or the like, converts it to data in units of 1 second to several tens of seconds, for example, and stores the converted data in the first storage unit 32. .

  Now, the access point device 4 can notify the mobile terminal 3 and the like that the agricultural machine, that is, the access point device 4 exists, by transmitting the second identifier to the outside at a predetermined interval. Here, when the mobile terminal 3 finds a predetermined second identifier and connects to the access point device 4 having the second identifier, the farm work data stored in the first storage unit 32 of the access point device 4 is stored in the mobile terminal. 3 can be obtained. On the other hand, the access point device 4 transmits the first identifier to the mobile terminal 3 according to the state of the agricultural machine. Therefore, the state of the agricultural machine can be grasped by the portable terminal 3 even when the agricultural work data is being transmitted. Further, even when the access point device 4 is not transmitting agricultural work data, that is, when wireless communication is not established between the access point device 4 and the mobile terminal 3, the mobile terminal 3 grasps the state of the agricultural machine. can do. The farm work data acquired by the portable terminal 3 can be analyzed and organized by processing with the portable terminal 3 or with a computer such as a management server.

  In the first embodiment and the second embodiment described above, since the first identifier that is an identifier for monitoring and the second identifier that is an identifier for data communication are used, the mobile terminal 3 and the access point device 4 In a situation where is connected, the state of the work implement can be notified to the outside while the connection is continued. That is, when the status of the work machine is transmitted to the outside using a service set identifier, if only one service set identifier is prepared, communication may be interrupted when the service set identifier is changed. On the other hand, in the present invention, two identifiers, a first identifier that is an identifier for monitoring and an identifier for data communication, are prepared, and one is used for data communication. Therefore, even if the identifier for monitoring is changed, , Communication can be continued.

The embodiment disclosed this time should be considered as illustrative in all points and not restrictive. The scope of the present invention is defined by the terms of the claims, rather than the description above, and is intended to include any modifications within the scope and meaning equivalent to the terms of the claims.
In the above-described embodiment, the lack of fuel and the amount of fertilizer loaded are set to the state of the work machine and transmitted to the outside using the first identifier, but the state of the work machine to be transmitted to the outside using the first identifier is: Anything may be used and, of course, it is not limited to the above.

  In the above-described embodiment, the first identifier indicating the state of the work machine is displayed on the display unit 43. However, a message may be displayed corresponding to the first identifier. For example, when the mobile terminal 3 receives the first identifier indicating that the fuel is insufficient, for example, a message “fuel is insufficient” may be displayed corresponding to the first identifier. In addition, when the mobile terminal 3 receives the first identifier, the content corresponding to the first identifier (for example, fuel is insufficient) may be output by voice or notified by vibration.

1 Communication system for work equipment 2 Work equipment (tractor)
DESCRIPTION OF SYMBOLS 3 Portable terminal 4 Access point device 10 for working machines Traveling vehicle 11 Engine 12 Transmission 13 Three-point link mechanism 14 Working device 15 Cabin 16 Driver's seat 18 Display device 20 Control device 20A First control device 20B Second control device 20C Third Control device 30 First communication unit 31 Control unit 32 First storage unit 33 Status acquisition unit 34 Identifier setting unit 35 Ignition switch 39 Information collection unit 40 Second communication unit 41 Second storage unit 42 Position detection unit 43 Display unit

Claims (4)

An access point device for a work machine for wirelessly connecting a vehicle-mounted network constructed on a work machine and a mobile terminal on an external network different from the vehicle-mounted network ,
A state acquisition unit for acquiring the state of the work implement;
An identifier setting unit that sets a first identifier that includes the state of the work machine acquired by the state acquisition unit and includes a character indicated by a second identifier for connection in the wireless communication ;
A communication unit capable of transmitting the first identifier set by the identifier setting unit and capable of transmitting the second identifier;
An access point device for a work machine characterized by comprising:   The work machine access point device according to claim 1, wherein the identifier setting unit sets the first identifier when a state of the work machine changes. A working machine communication system comprising: a work machine access point device for wirelessly connecting a vehicle-mounted network constructed on a work machine and a mobile terminal on an external network different from the vehicle-mounted network; and a mobile terminal. There,
The work machine access point device includes a state acquisition unit that acquires the state of the work machine,
An identifier setting unit that sets a first identifier that includes a state of the work machine acquired by the state acquisition unit and includes a character indicated by a second identifier for connection of the wireless communication, and is set by the identifier setting unit the first identifier can transmit, and, working machine communication system, characterized in that it comprises a communication unit capable of transmitting the second identifier.   The communication system for a working machine according to claim 3, wherein the mobile terminal includes a display unit that displays the first identifier.

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