JP5897493B2 - Agricultural data communication system - Google Patents

Description

  The present invention relates to a farm data communication system for transmitting farm data when farming with an agricultural machine.

In recent years, in order to improve the efficiency of work plans in the field and to improve the quality of the harvested items in the field, it is desired to collect and use work information that has been worked on the field. As a technique for collecting farm work data using an agricultural machine such as a combine machine, for example, there is one shown in Patent Document 1.
In Patent Document 1, a crop quality measuring unit that measures the quality of a crop as the crop is harvested, and information that can output the quality measurement information measured by the crop quality measuring unit to the crop harvester. Output means (wireless communication device), measurement information collection means for collecting measurement information of quality corresponding to each of a plurality of harvesting locations output from the information output means, and collected by the measurement information collection means And a quality map creating means for obtaining and outputting a quality map for each region of the crop corresponding to a plurality of harvesting locations based on the collected information.

Japanese Patent Laid-Open No. 11-035774

In Patent Literature 1, measurement information measured by a crop harvester using a wireless communication device (information output means) is transmitted to a communication device. However, measurement information is transmitted from the wireless communication device of the crop harvester to the communication device. The communication processing in doing so is not described in detail, and the fact is that measurement information cannot be transmitted or received properly even if this technology is used.
Then, an object of this invention is to provide the communication system of agricultural work data which can reduce the load concerning the wireless communication after completion of transmission / reception of agricultural work data in view of the said problem.

In order to achieve the above object, the present invention has taken the following measures.
That is, the agricultural data communication system is mounted on a movable agricultural machine to store the agricultural data obtained by performing the agricultural work, and the agricultural data stored in the data collecting device is received by wireless communication connection. A portable terminal that includes a first communication disconnecting unit that disconnects wireless communication with the data collection device after completion of receiving the farm work data transmitted from the data collection device. The apparatus includes a second communication disconnecting unit that disconnects a wireless communication connection with the portable terminal after completing the transmission of the farm work data, and the second communication disconnecting unit transmits the farm work data to the portable terminal after starting the transmission of the farm work data. The transmission time required for transmission to the network has been exceeded, and the disconnection time necessary for disconnecting the connection from the first communication disconnection unit to the data collection device has been exceeded. In case a disconnection from said first communication disconnection unit as not be confirmed, and performs the disconnection of wireless communication.

A communication system for agricultural work data includes a data collection device that stores agricultural work data that is mounted on a movable agricultural machine and performs the agricultural work, and a mobile that receives the agricultural work data stored in the data collection device through a wireless communication connection. And the portable terminal executes a process of disconnecting a wireless communication connection with the data collection apparatus when the reception of the farm work data transmitted from the data collection apparatus is completed, and performs the disconnection process. A first communication disconnecting unit that performs processing for transmitting a disconnection signal indicating that the disconnection signal has been transmitted to the data collection device, and the data collection device is configured to communicate with the mobile terminal when the disconnection signal cannot be received after completion of transmission of the farm work data. A second communication disconnecting unit that performs processing for disconnecting the wireless communication connection is provided.
The communication system for farm work data is different from the one mobile terminal after the data collection device is disconnected from the wireless communication connection with the one mobile terminal by the first communication disconnection unit or the second communication disconnection unit. The wireless communication connection with the portable terminal is started.

According to the first aspect of the invention, the wireless communication connection can be disconnected from the mobile terminal side, and the data collection device side can also disconnect the wireless communication connection. The load on wireless communication can be reduced.
According to the second aspect of the present invention, the data collection device can quickly move to another process without confirming on the data collection device side that the mobile terminal has disconnected the wireless communication. For example, even when a worker who has a portable terminal during wireless communication has gone out of a communication area for wireless communication with the data collection device for farm work, the data collection device does not perform the wireless communication. You can cancel and move to another process.

According to the invention which concerns on Claim 3, the data collection apparatus can transmit the same agricultural work data to another portable terminal after transmitting the agricultural work data to one portable terminal.
According to the invention according to claim 4, the data collection device can shorten the time from when the farm work data is transmitted to the portable terminal until the wireless communication connection is cut off as much as possible. The process can be shifted to.

1 is an overall view of a communication system for agricultural work data. It is a procedure figure of transmission of farm work data from a data collection device to a portable terminal. It is explanatory drawing when the positional relationship of a data collection device and a portable terminal changes. It is explanatory drawing explaining the relationship of elapsed time, transmission time, and a cutting | disconnection. It is explanatory drawing which arranges several farm work data. It is a figure which shows the timing when agricultural work data are received with a some portable terminal. It is the schematic which shows the whole structure of a tractor.

A farm work data communication system according to an embodiment of the present invention will be described below with reference to the drawings.
As described above, the results of farm work (contents of actual farm work) are collected, and the collected farm work results are used to create, for example, a daily work report for farm work or a work plan for farm work. There is a desire to want. Therefore, in the present invention, the farm work performed on the agricultural machine side is stored (stored) on the farm machine side as farm work data, and the farm work data stored on the farm machine side is efficiently transmitted to the outside.

  Specifically, as shown in FIG. 1, the agricultural data communication system 1 collects agricultural data when the agricultural machine 2 is mounted on an agricultural machine 2 such as a tractor, a combiner, or a rice transplanter and the agricultural machine 2 performs the agricultural work. And a portable terminal 4 that transmits agricultural work data collected by the data collecting device 3. The farm work data is various information when farm work is performed with an agricultural machine, and includes, for example, load information (speed, engine speed), fertilizer amount, and harvest amount of the farm machine.

The farm work data communication system 1 will be described in detail by taking a tractor as an example.
As shown in FIG. 7, 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 with wheels attached to the front and rear. An independently mounted cabin 13 is provided behind the engine 11, and a driver's seat 14 is provided in the cabin 13. In addition, a three-point link mechanism 15 is provided at the rear portion of the traveling vehicle 2 so as to be movable up and down, and a PTO shaft that transmits power from the engine 11 is provided. A working device 16 such as a fertilizer spraying device, a tilling device, a pesticide spraying device, a seeding spraying device, and a harvesting device is detachably attached to the three-point link mechanism 15. FIG. 7 shows an example in which the fertilizer spraying device is attached to the three-point link mechanism 15.

  In addition to the data collection device 3, a control device 20 is mounted on the tractor 2. The control device 20 performs traveling system control, working system control, and the like of the tractor 2, and is provided around the driver's seat as the traveling system control to control the operation of the engine or as the working system control. When an input from an operation tool such as an operation lever or an operation switch is received, operations such as raising and lowering of the three-point link mechanism 15 and output (rotation speed) of the PTO shaft are controlled according to the input value. Control signals for performing traveling system control and work system control of the tractor 2 and various detection signals for performing the control (for example, signals detected by the sensors) are output to the vehicle communication network and are transmitted to each part of the tractor 2. Communicated. The travel system control and work system control by the control device 20 are not limited to those described above.

The data collection device 3 automatically collects various data relating to farm work when the tractor 2 is operating via a vehicle network to which various sensors, the control device 20 and the like are connected. For example, when a cultivator is connected to the rear part of the tractor 2 as the working device 16 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 stored in the vehicle communication network. Is output. The data collection device 3 acquires data such as rotary speed, rotary load, engine speed, vehicle speed, and tilling depth as farm work data.

  In addition, when the work device 16 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., is a vehicle communication network The data collection device 3 outputs the vehicle speed, the engine speed, the fertilizer application amount, the agricultural chemical application amount, and the seeding application amount as agricultural work data. Alternatively, when the work device 16 is a harvesting device, data such as the vehicle speed, engine speed, and harvest amount are output on the vehicle communication network, and the data collection device 3 uses the farm speed data for the vehicle speed, engine speed, and harvest amount. Get as.

  Such a data collection device 3 includes a first storage unit (buffer) 30 for temporarily storing various farm work data related to the farm work as described above. Each time the tractor 2 is operated, the farm work data is sequentially accumulated in the first storage unit 30. The data collection device 3 stores machine specifying information for identifying (specifying) the tractor 2 and also stores an operation time when the tractor 2 is operated.

  Further, the data collection device 3 includes a first communication unit 31 that transmits the farm work data stored in the first storage unit 30 to the mobile terminal 4. The first communication unit 31 performs short-range wireless communication. For example, the first communication unit 31 performs wireless communication with the mobile terminal 4 using Wi-Fi (Wireless Fidelity (registered trademark)) of the IEEE 802.11 series which is a communication standard. It is. The first communication unit 31 stores authentication information (e.g., own MAC address, network name (SSID), network key) for permitting authentication with the mobile terminal 4.

  The mobile terminal 4 is, for example, a portable computer such as a smart phone (multifunctional mobile phone) or a tablet PC having a relatively high computing ability. The portable terminal 4 includes a second communication unit 40 that receives various data (agricultural work data and the like) from the data collection device 3. The second communication unit 40 performs short-range wireless communication in the same manner as the first communication unit 31. For example, the second communication unit 40 communicates with the data collection device 3 using Wi-Fi (registered trademark) of the IEEE802.11 series that is a communication standard. Wireless communication. The mobile terminal 4 includes a third communication unit 41 that transmits farm work data to a server that manages farm work data, a personal computer installed in a farm, or the like via a mobile communication network (for example, a mobile phone communication network). It is desirable that

  The portable terminal 4 includes a second storage unit 42 that stores the farm work data transmitted from the data collection device 3. The storage capacity of the second storage unit 42, that is, the storage capacity for storing farm work data is greater than or equal to the storage capacity of the first storage unit 30 of the data collection device 3. For example, the storage capacity of the second storage unit 42 (storage capacity for storing farm work data) is at least twice as large as the storage capacity of the first storage unit 30 of the data collection device 3 (storage capacity for storing farm work data), preferably Is 10 times or more, more preferably 250 times or more.

FIG. 2 shows a procedure for transmitting farm work data from the data collection device to the portable terminal.
First, authentication information (SSID and network key) of the data collection device 3 that performs wireless communication is stored in the predetermined portable terminal 4 so that the portable terminal 4 can wirelessly communicate with the predetermined data collection device 3 (S1). Specifically, using an interface such as a touch panel provided in the portable terminal 4, input (registration) of the SSID and network key of the data collection device 3 that performs wireless communication, that is, the data collection device 3 that is a connection target. To do. The input (registered) SSID and network key are stored in the storage unit of the portable terminal 4.

Next, in a situation where a beacon including authentication information is transmitted from the data collection device 3 (S2), the portable terminal 4 enters the communication area of the data collection device 3 to be connected, thereby the portable terminal 4 Receives a beacon transmitted from the data collection device 3 (S3), the portable terminal 4 transmits authentication information (network key) to the data collection device 3 (S4). After registering the authentication information in the mobile terminal 4, the registered authentication information (network key) is automatically transmitted to the data collection device 3 every time the mobile terminal 4 receives a beacon of the data collection device 3 to be connected. It is desirable to do.

  When the data collection device 3 receives the network key transmitted from the portable terminal 4, the data collection device 3 performs authentication with the network key stored in the data collection device 3 (S5). When the network authentication is established and the connection between the data collection device 3 and the portable terminal 4 is established, the data collection device 3 transmits farm work data to the portable terminal 4 (S6). When transmitting the farm work data, the data collection device 3 includes the machine identification information for identifying (specifying) the tractor 2 (agricultural machine), the operation time when the tractor 2 (agricultural machine) is operated, and the like. As a result. In this way, it is possible to organize farm work data for each tractor 1.

  As described above, in a state where the data collection device 3 and the mobile terminal 4 are connected by wireless communication (authentication permission state), the first storage unit 30 is used by the first communication unit 31 on the data collection device 3 side. Can be transmitted to the portable terminal 4. On the other hand, on the mobile terminal 4 side, the farm work data can be received by the second communication unit 40 and stored in the second storage unit 42.

The portable terminal 4 and the data collection device 3 include means for automatically disconnecting the wireless communication connection.
Next, means for disconnecting the wireless communication connection will be described in detail.
The portable terminal 4 includes a first communication disconnecting unit 44 configured from a program or the like. The first communication disconnecting unit 44 disconnects connection (access) of wireless communication with the data collecting apparatus 3 that has been communicating after completion of receiving the farm work data transmitted from the data collecting apparatus 3.

  Specifically, on the data collection device 3 side, the transmission capacity of the farm work data that can be transmitted from the data collection device 3 to the portable terminal 4 by one access is stored in the first storage unit 30 of the data collection device 3. It is set as the capacity of agricultural work data that can be stored. On the mobile terminal 4 side, the transmission capacity of agricultural work data transmitted in one access is set. In addition, when the data collection device 3 and the portable terminal 4 are connected by wireless communication and the portable terminal 4 receives farm work data having a preset transmission capacity (1 MB), the first communication disconnecting unit 44 performs the farm work. It is determined that data reception has been completed, and the wireless communication connection with the data collection device 3 is stopped (wireless communication disconnection processing is performed).

  Alternatively, when transmitting the farm work data from the data collection device 3 to the mobile terminal 4, a tail flag indicating the end of the farm work data is added to the last frame of the farm work data to be transmitted, and the first communication disconnecting unit of the mobile terminal 4 When 44 receives the tail flag, it determines that the reception of the farm work data has been completed, and stops the wireless communication connection with the data collection device 3. In addition, you may use the checksum added at the end of the frame which transmits agricultural work data as a tail flag.

  Moreover, based on the communication speed of the 1st communication part 31 and the 2nd communication part 40, the reception time (data collection device required for receiving all the farm work data memorize | stored in the 1st memory | storage part 30 by the portable terminal 4 side) If it says from the 3rd side, the transmission time required in order to transmit agricultural work data to the portable terminal 4) is preset to the portable terminal 4. FIG. In addition, when the elapsed time after the mobile terminal 4 first receives the farm work data (after detecting the farm work data header) reaches the reception time, the first communication disconnecting unit 44 receives the farm work data. The wireless communication connection with the data collection device 3 may be stopped after determining completion.

In any of the cases described above, when the first communication disconnecting unit 44 stops the connection of the wireless communication with the data collection device 3, the first communication disconnection unit 44 transmits a signal for disconnecting (stopping) the connection (referred to as a disconnect signal) to the data collection device 3. Process to send to.
On the other hand, the data collection device 3 includes a second communication disconnecting unit 35 configured by a program or the like. The second communication disconnecting unit 35 disconnects the wireless communication connection with the portable terminal 4 after completing the transmission of the farm work data.

  Specifically, when the first communication unit 31 of the data collection device 3 transmits farm work data having a preset transmission capacity, the second communication disconnecting unit 35 determines that the transmission of farm work data has been completed. Then, the second communication disconnecting unit 35 is connected to the wireless communication when the disconnection of the connection from the first communication disconnecting unit 44 of the portable terminal 4 cannot be confirmed after the completion of the transmission of the farm work data. Disconnect.

  For example, as shown in FIG. 3A, when the data collection device 3 and the portable terminal 4 are in a communication area M where wireless communication can be performed, the farm work data is transferred from the data collection device 3 to the portable terminal 4. When transmitted, the portable terminal 4 can receive the farm work data. On the other hand, the data collection device 3 can receive the disconnection signal transmitted from the first communication disconnection unit 44 of the mobile terminal 4.

  However, as shown in FIG. 3 (b), the tractor 2 (data collection device 3) and / or the portable terminal 4 move during the wireless communication between the data collection device 3 and the portable terminal 4, and move out of the communication area M. In this case, the data collection device 3 cannot receive the disconnection signal transmitted from the first communication disconnection unit 44 of the mobile terminal 4. That is, when the disconnection signal from the mobile terminal 4 cannot be received (when the disconnection from the first communication disconnection unit 44 cannot be confirmed), the second communication disconnection unit 35 of the data collection device 3 wirelessly communicates with the mobile terminal 4. The communication connection is automatically disconnected.

  When the disconnection signal from the mobile terminal 4 cannot be received even after a predetermined time has elapsed after the transmission of the farm work data in the data collection device 3, the second communication disconnecting unit 35 disconnects the wireless communication connection with the mobile terminal 4. Do. For example, as shown in FIG. 4, an elapsed time T from when the data collection device 3 starts transmitting farm work data to the mobile terminal 4 until it receives a disconnection signal is necessary to transmit the farm work data to the mobile terminal 4. The transmission time T1 is exceeded, and the disconnection time necessary for disconnecting the connection from the first communication disconnection unit 44 to the data collection device 3 (necessary for transmitting a disconnection signal from the portable terminal 4 to the data collection device 3). When the time exceeds T2, the second communication disconnecting unit 35 disconnects the wireless communication because the disconnection of the connection cannot be confirmed from the first communication disconnecting unit 44.

  More specifically, in this embodiment, the transmission capacity transmitted from the data collection device 3 to the portable terminal 4 is 128 kB, the data transfer rate (effective speed) between the data collection device 3 and the portable terminal 4 is 10 Mbs, and the data collection device. 3 and the communication processing time performed by the portable terminal 4 is 10 seconds, and the elapsed time (transmission time + disconnection time) from when the data collection device 3 receives the cutting signal after the start of transmission of the farm work data to the portable terminal 4 is 20 seconds. When the time exceeds 20 seconds, the second communication disconnecting unit 35 of the data collection device 3 disconnects the wireless communication connection with the mobile terminal 4.

  As described above, since the wireless communication connection can be disconnected from the mobile terminal 4 side and the wireless communication connection can also be disconnected from the data collection device 3 side, the mobile terminal in the case of transmitting and receiving farm work data The communication processing on the 4th side and the data collection device 3 side proceeds smoothly, and the communication processing and other processing can be performed quickly. Moreover, even if the positional relationship between the tractor 2 (data collection device 3) and the worker (portable terminal 4) changes to various forms due to the influence of the farm work, the farm work data can be transmitted to the portable terminal 4.

FIG. 3 shows a case where the positional relationship between the tractor (data collection device) and the worker (mobile terminal) is changed by the farm work.
As shown in FIG. 3A, it is assumed that one tractor 2a and two workers A and B are working at the start of farm work. In the communication area M of one data collection device 3a mounted on the tractor 2a, the portable terminal 4a (sometimes referred to as one portable terminal) possessed by the worker A and the worker B are possessed. When the mobile terminal 4b (sometimes referred to as another mobile terminal) is included, the farm work data can be transmitted from the data collection device 3a to the mobile terminal 4a possessed by the worker A.

  When the transmission of the farm work data to the mobile terminal 4a is completed, the data collection device 3a side can receive a disconnection signal from the mobile terminal 4a. Therefore, after receiving the disconnection signal (after confirming the disconnection), the data collection device 3a It is possible to execute a transmission process of farm work data by wireless communication with another mobile terminal 4b (a mobile terminal 4b possessed by the worker B) different from the one mobile terminal 4a. On the other hand, when one mobile terminal 4a also disconnects the wireless communication with the data collection device 3a, the data collection device 3b in another location and the one mobile terminal 4a can perform wireless communication.

  Now, as shown in FIG. 3B, while the data collection device 3a is transmitting farm work data to the portable terminal 4b, the worker B moves for farm work, and the portable terminal 4b is in the communication area M of the data collection device 3a. May fall off In such a case, the data collection device 3a cannot receive the disconnection signal from the portable terminal 4b, but the second communication disconnection unit 35 of the data collection device 3a can disconnect the wireless communication connection from the data collection device 3a side. Therefore, the data collection device 3a can stop communication with the portable terminal 4b and perform wireless communication with other portable terminals 4 in the communication area M.

  For example, after the wireless communication with the portable terminal 4b is disconnected by the second communication disconnecting unit 35, the data collecting device 3a is operated by another worker C other than the worker B as shown in FIG. When entering the communication area M of 3a, the network key transmitted from the other portable terminal 4c is accepted (received), and the wireless communication connection with the other portable terminal 4c is started. And if authentication with the data collection device 3a and the other portable terminal 4c is materialized, the said data collection device 3a can transmit the agricultural work data memorize | stored in the 1st memory | storage part 30 to the other portable terminal 4c. .

  As described above, the farm work data stored in the mobile terminal 4 may be organized using an application or the like stored in the mobile terminal 4. You may transmit to the installed personal computer. In the case where farm work data is transmitted from a plurality of portable terminals 4 to a server or personal computer, the server 5 has a data organizing unit that combines duplicate farm work data (same farm work data) into one. It is desirable. For example, as illustrated in FIG. 5, it is assumed that farm work data X1, X2, and X3 are transmitted to the server 5 from the mobile terminals 4c, 4d, and 4e owned by the three workers C, D, and E, respectively. When receiving the three farm work data X1, X2, and X3, the data organizing unit of the server 5 collects the same farm work data X1 and X3 among the farm work data X1, X2, and X3 into one farm work data. The different farm work data X2 is stored as it is. It is desirable to determine whether or not they are the same farm work data based on the machine identification information in each farm work data, the work time in the farm work data, or data identification information previously attached to the farm work data group. For example, when the machine identification information is the same and the work time is the same among a plurality of farm work data, it can be determined that the farm work data is the same, and the same farm work even when the data identification information matches. It can be judged as data.

  As described above, in the communication system 1 for farm work data, farm work data for farm work is transmitted to the mobile terminals 4 of a plurality of workers who advance the farm work in cooperation with the vicinity of the agricultural machine (tractor) 2. It can be stored in each mobile terminal 4. When transmitting / receiving agricultural work data between the data collection device 3 and the portable terminal 4, the data collection device 3 side and the portable terminal 4 side each independently disconnect the wireless communication connection. Therefore, it is possible to substantially reduce useless wireless communication between the data collection device 3 and the portable terminal 4 under the situation where transmission / reception of farm work data is completed, and reduce the load on the wireless communication between the two. It becomes possible to do. In addition, it is preferable to disconnect the wireless communication after confirming on the data collection device 3 side that the mobile terminal 4 has disconnected the wireless communication. However, as described above, during the data transmission, the mobile terminal 4 is disconnected. Even if the worker who possesses the vehicle has moved for farm work, the wireless communication can be disconnected from the data collection device 3 side, and the data collection device 3 can quickly move to another process. Become. For example, the data collection device 3 can quickly cancel the wireless communication with the portable terminal 4 that has been performing the wireless communication, and can quickly transmit the farm work data to the other portable terminals 4 in the communication area M.

In addition, when receiving agricultural work data from the same data collection device 3 using a plurality of portable terminals 4, it is desirable that the intervals at which the portable terminals 4 receive the agricultural work data are changed.
The timing when a plurality of portable terminals 4 receive farm work data will be described with reference to FIG. “ON” in FIG. 6 indicates that the mobile terminal 4 and the data collection device 3 perform wireless communication to transmit and receive farm work data and the like, and “OFF” indicates that the mobile terminal 4 and the data collection device 3 perform wireless communication. Is not performed (the cutting process has been performed), indicating that farm work data and the like are not being transmitted / received.

As shown in FIG. 6, for example, it is assumed that there are four mobile terminals (4a, 4b, 4c, 4d). Each portable terminal 4 differs from the other portable terminals 4 in the time (disconnected communication time) from when the wireless communication with the data collection device 3 is disconnected until the next wireless communication with the data collection device 3 is started. I am doing so.
Specifically, as shown in FIG. 6, the disconnect communication time R1 of the mobile terminal 4a is different from the disconnect communication times R2, R3, R4 of the other mobile terminals 4b, 4c, 4d. Further, it is different from the disconnect communication time R1, R3, R4 of the mobile terminal 4b. Similarly, the mobile terminals 4c and 4d also have different disconnect communication times from the other mobile terminals 4. In order to make the disconnection communication time of each mobile terminal 4 different, the mobile terminal 4 sets the interval (disconnection communication time) for requesting the farm work data to the data collection device 3 as a random number (random). The disconnection communication time is set to several minutes or several tens of minutes (for example, 10 to 15 minutes). In this way, even when a plurality of portable terminals 4 receive agricultural work data or the like from the data collection device 3, wireless communication between the portable terminal 4 and the data collection device 3 can be performed smoothly. When viewed from the data collection device 3 side, the farm work data and the like can be smoothly transmitted to the next portable terminal 4 after the cutting process.

  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 embodiment described above, a tractor has been described as an example of an agricultural machine, but a combine may be used. The combine is equipped with a sensor that detects the protein of the harvested cereal and a measuring instrument that detects the yield. When applied to the combine, the harvest, protein, etc. can be acquired as farm work data. It becomes possible to organize the yield and protein of each field. Or not only a tractor and a combine but an agricultural machine may be a rice transplanter.

  When transmitting the farm work data from the portable terminal 4 to a server for managing the farm work data or a personal computer installed in the farmer, identification information for identifying the portable terminal 4 (for example, the telephone number of the portable terminal 4, the portable terminal 4 The manufacturing number, the MAC address of the portable terminal 4, etc.) may be transmitted together with the farm work data. In this way, it is possible to associate the farm work data with the worker who owns (has) the portable terminal 4, and it is possible to know who is the worker who performed the farm work.

  In addition, a position detection device for obtaining a position based on a signal from a positioning satellite (for example, GPS) is provided on the mobile terminal 4 side, and the position detected by the position detection device and the farm work data are stored in the mobile terminal 4. May be. When the worker brings the mobile terminal 4 and gets on the agricultural machine 2, the position of the mobile terminal 4 becomes the position of the agricultural machine 2. When the worker is not on the board, the position when the worker performs the agricultural work Become. Therefore, it is possible to grasp the position of the agricultural machine 2 and the position of the worker during farm work. In addition, if a map (a field map) indicating a farm field is stored in the mobile terminal 4, it is possible to identify a farm field of farm work performed by the farm machine 2 by collating with the trajectory of the farm machine 2. Become. In this way, it is convenient to keep a record of farm work for each field. Note that a position detection device may be provided in the agricultural machine 2 so that the position of the agricultural machine detected by the position detection device is transmitted from the data collection device 3 to the portable terminal 4 as agricultural work data.

DESCRIPTION OF SYMBOLS 1 Communication system of agricultural work data 2 Agricultural machine 3 Data collection device 4 Portable terminal 5 Server 10 Traveling vehicle body 11 Engine 12 Transmission device 13 Cabin 14 Driver's seat 15 Three-point link mechanism 16 Working device 20 Control device 30 1st memory | storage part 31 1st Communication unit 35 Second communication disconnection unit 40 Second communication unit 41 Third communication unit 42 Second storage unit 44 First communication disconnection unit

Claims (3)

A data collection device for storing farm work data mounted on a movable agricultural machine and performing the farm work, and a portable terminal for receiving the farm work data stored in the data collection device by wireless communication connection;
The portable terminal includes a first communication disconnecting unit that disconnects wireless communication with the data collection device after receiving the farm work data transmitted from the data collection device, and the data collection device transmits the farm work data. A second communication disconnecting unit for disconnecting a wireless communication connection with the portable terminal after completion;
The second communication disconnection unit exceeds a transmission time necessary for transmitting the farm work data to the mobile terminal after starting the transmission of the farm work data, and further disconnects the connection from the first communication disconnection unit to the data collection device. A communication system for agricultural work data, characterized in that, when a disconnection time necessary for this is exceeded, disconnection of wireless communication is performed because the disconnection of the connection cannot be confirmed from the first communication disconnection unit. A data collection device for storing farm work data mounted on a movable agricultural machine and performing the farm work, and a portable terminal for receiving the farm work data stored in the data collection device by wireless communication connection;
The mobile terminal performs a process of disconnecting a wireless communication connection with the data collection device when the reception of the farm work data transmitted from the data collection device is completed, and indicates that the disconnection process has been performed. A first communication disconnecting unit that performs a process of transmitting a signal to the data collection device, and the data collection device is connected to a wireless communication with the portable terminal when the disconnection signal cannot be received after the completion of the transmission of the farm work data. A communication system for agricultural work data, comprising a second communication disconnecting unit for performing a process of disconnecting the farm.   The data collection device performs wireless communication with another mobile terminal different from the one mobile terminal after the wireless communication connection with the one mobile terminal is disconnected by the first communication disconnection unit or the second communication disconnection unit. 3. The agricultural data communication system according to claim 1, wherein connection is started.

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