KR102383141B1 - System and method for updating firmware of agricultural machinery - Google Patents

Abstract

The present invention discloses a firmware update system and method for an agricultural machine. The firmware update system of an agricultural machine according to an aspect of the present invention is capable of short-range wireless communication, and when receiving a firmware update request signal including a terminal device connected to the agricultural machine, and the location of the agricultural machine, it moves to the location through flight and an unmanned aerial vehicle that connects to the terminal device through short-range wireless communication when recognizing the agricultural machine and transmits the firmware of the agricultural machine to the terminal device, wherein the terminal device transmits the firmware received from the unmanned aerial vehicle to the agricultural machine It is characterized in that it is installed or updated in

Description

FIRMWARE UPDATE SYSTEM AND METHOD FOR UPDATING FIRMWARE OF AGRICULTURAL MACHINERY

The present invention relates to a firmware update system and method for agricultural machinery, and more particularly, to a firmware update system and method for agricultural machinery that can update the firmware of agricultural machinery using an unmanned aerial vehicle.

Agricultural machinery is being treated as a very important factor in order to reduce the high labor burden and production cost in response to the labor shortage caused by the decline of the rural labor force and aging population. In particular, agricultural machines are indispensable equipment in order to increase the efficiency of per capita farming work in the present era where the agricultural population is shrinking due to the ever-decreasing agricultural population and the aging of farmers. A typical tractor of agricultural machinery is a work car that performs various tasks in the agricultural field using traction. Currently, tractors install a front loader in front of the loader and attach various work attachments to the loader to perform various tasks such as transport, unloading, and loading. And, it is common to perform work such as tillage by mounting a rotavator or the like on the rear part through a rear link.

These agricultural machines have firmware (firmware) therein, and perform defined functions by driving the firmware. Firmware defined inside the agricultural machine can be updated (updated).

However, unlike the firmware of other devices (eg, smart phones) that can be updated automatically by being directly connected to the Internet, the firmware of agricultural machinery cannot be automatically updated. This is because the agricultural machine is not directly connected to the wireless communication network, but accesses the server through a communication terminal connected to the wireless communication network to download the firmware. As such, there is a disadvantage in that a communication terminal for wireless communication network connection is required for over-the-air (OTA) firmware update in the agricultural machinery field, and a monthly service fee must be paid.

For this reason, when it is necessary to update the farm machine firmware, a maintenance person visits the site to update the farm machine firmware. In this way, when a person in charge visits and updates the firmware of the agricultural machine, the person in charge has to visit the site, so there is a disadvantage in that it takes a lot of money and manpower.

Accordingly, it is necessary to develop a technology that allows updating the firmware of agricultural machinery without using a communication terminal such as LTE.

As prior art related to the present invention, there is Japanese Patent Application Laid-Open No. 2011-120540 (title of the invention: remote control system of agricultural equipment).

The present invention has been devised in order to improve the above problems, and an object of the present invention is to provide a firmware update system and method for agricultural machinery that can update the firmware of agricultural machinery using an unmanned aerial vehicle.

The problem to be solved by the present invention is not limited to the problem(s) mentioned above, and another problem(s) not mentioned will be clearly understood by those skilled in the art from the following description.

The firmware update system of an agricultural machine according to an aspect of the present invention is capable of short-range wireless communication, and when receiving a firmware update request signal including a terminal device connected to the agricultural machine, and the location of the agricultural machine, it moves to the location through flight and an unmanned aerial vehicle that connects to the terminal device through short-range wireless communication when recognizing the agricultural machine and transmits the firmware of the agricultural machine to the terminal device, wherein the terminal device transmits the firmware received from the unmanned aerial vehicle to the agricultural machine It is characterized in that it is installed or updated in

In the present invention, the unmanned aerial vehicle includes a wireless communication unit for short-distance communication with the terminal device, a storage unit storing firmware for each agricultural machine, an image sensor for acquiring an image, and authentication information when the agricultural machine is recognized through the image sensor and a control unit for transmitting a connection request signal to the terminal device through the wireless communication unit, and transmitting the corresponding firmware stored in the storage unit to the terminal device through the wireless communication unit when receiving an authentication success signal from the terminal device can do.

In the present invention, the control unit, a path setting unit for setting a path to the location of the agricultural machine as a destination, a flight control unit for moving to the set path and adjusting the speed of the propeller, through the image sensor using machine learning An agricultural machine recognition unit that recognizes the agricultural machine from the captured image and allows it to be seated in a position where short-range wireless communication with the terminal device connected to the recognized agricultural machine is possible, and an access request signal including the unique identification information and password of the unmanned aerial vehicle A connection processing unit for transmitting to the terminal device through a wireless communication unit and receiving an authentication completion signal from the terminal device, and when receiving an authentication success signal including agricultural machine identification information from the terminal device, corresponding to the agricultural machine identification information and a firmware transmission processing unit that acquires firmware from the storage unit and transmits the firmware to the terminal device.

In the present invention, the firmware transmission processing unit, based on the network transmission speed between the unmanned aerial vehicle and the terminal device, may divide the firmware to be updated in whole or in part and transmit it to the terminal device.

In the present invention, the terminal device receives a connection request signal including authentication information from the unmanned aerial vehicle through a connection unit for accessing the agricultural machine, a wireless communication unit for short-distance communication with the unmanned aerial vehicle, a storage unit, and the wireless communication unit When the authentication information matches the previously registered information, an authentication success signal including agricultural machine identification information is transmitted to the unmanned aerial vehicle, the firmware is received from the unmanned aerial vehicle and stored in the storage unit, and the stored firmware may include a control unit for transmitting to the agricultural machine through the connection unit.

In the present invention, the terminal device may further include a manipulation unit for receiving an operation command from a user and a display unit for displaying at least one of power application, firmware download, and log file collection of an agricultural machine according to the operation command.

In the present invention, the control unit receives firmware and a hash code from the unmanned aerial vehicle, temporarily stores the received firmware in a storage unit, calculates a hash code for the temporarily stored firmware data, and calculates the hash code and the When the received hash code is the same, the temporarily stored firmware data may be transmitted to the agricultural machine.

In the present invention, the control unit may collect a log file related to the operation of the agricultural machine through the connection unit, and transmit the log file to the unmanned aerial vehicle through the wireless communication unit.

A firmware update method of an agricultural machine according to another aspect of the present invention includes the steps of, when an unmanned aerial vehicle receives a firmware update request signal including the location of the agricultural machine, moving to the location through flight and recognizing the agricultural machine, the unmanned aerial vehicle transmitting an access request signal including unique identification information and password to a terminal device connected to the agricultural machine through short-range wireless communication, wherein the terminal device performs authentication of the unique identification information and password, and when authentication succeeds, transmitting a firmware download acceptance signal to the unmanned aerial vehicle, the unmanned aerial vehicle transmitting the firmware of the agricultural machine to the terminal device, and the terminal device storing the firmware and transmitting the stored firmware to the agricultural machine includes steps.

In the present invention, in the step of transmitting the firmware of the agricultural machine to the terminal device, the unmanned aerial vehicle may divide the firmware to be updated in whole or in part and transmit it to the terminal device based on the network transmission speed with the terminal device. .

In the present invention, in the step of the terminal device storing the firmware and transmitting the stored firmware to the agricultural machine, the terminal device receives the firmware and the hash code from the unmanned aerial vehicle and temporarily stores the received firmware in the storage unit. and calculating a hash code for the temporarily stored firmware data, and when the calculated hash code and the received hash code are the same, the temporarily stored firmware data may be transmitted to the agricultural machine.

The present invention may further include the step of collecting, by the terminal device, a log file related to the operation of the agricultural machine, and transmitting the log file to the unmanned aerial vehicle through short-range wireless communication.

The firmware update system and method for agricultural machinery according to an embodiment of the present invention downloads the firmware of the agricultural machine from an unmanned aerial vehicle through short-range wireless communication and updates the downloaded firmware to the agricultural machine, so that communication costs such as LTE can be reduced. there is.

Since the firmware update system and method for agricultural machinery according to another embodiment of the present invention downloads the firmware of the agricultural machinery using an unmanned aerial vehicle, it is possible to quickly update the firmware at the current place where the agricultural machinery is used.

On the other hand, the effects of the present invention are not limited to the above-mentioned effects, and various effects may be included within the range obvious to those skilled in the art from the description below.

1 is a view for explaining a firmware update system of an agricultural machine according to an embodiment of the present invention.
2 is a block diagram schematically showing the configuration of an unmanned aerial vehicle according to an embodiment of the present invention.
3 is a block diagram for explaining the function of the control unit shown in FIG.
4 is a block diagram schematically showing the configuration of a terminal device according to an embodiment of the present invention.
5 is a diagram schematically showing the outside of a terminal device according to an embodiment of the present invention.
6 is a view for explaining a firmware update method of an agricultural machine according to an embodiment of the present invention.

Hereinafter, a firmware update system and method of an agricultural machine according to an embodiment of the present invention will be described with reference to the accompanying drawings. In this process, the thickness of the lines or the size of the components shown in the drawings may be exaggerated for clarity and convenience of explanation.

In addition, the terms to be described later are terms defined in consideration of functions in the present invention, which may vary according to the intention or custom of the user or operator. Therefore, definitions of these terms should be made based on the content throughout this specification.

Further, implementations described herein may be implemented as, for example, a method or process, an apparatus, a software program, a data stream, or a signal. Although discussed only in the context of a single form of implementation (eg, discussed only as a method), implementations of the discussed features may also be implemented in other forms (eg, as an apparatus or program). The apparatus may be implemented in suitable hardware, software and firmware, and the like. A method may be implemented in an apparatus such as, for example, a processor, which generally refers to a computer, a microprocessor, a processing device, including an integrated circuit or programmable logic device, and the like. Processors also include communication devices such as computers, cell phones, portable/personal digital assistants (“PDA”) and other devices that facilitate communication of information between end-users.

1 is a view for explaining a firmware update system of an agricultural machine according to an embodiment of the present invention.

Referring to FIG. 1 , the firmware update system of an agricultural machine according to an embodiment of the present invention includes a terminal device 200 connected to the agricultural machine 10 , and an unmanned aerial vehicle 100 . Here, the agricultural machine 10 may mean a moving object such as a tractor, an agricultural machine device, and an agricultural implement using electricity.

The agricultural machine 10 may be connected to the terminal device 200 through an internal communication network. In this case, the internal communication network of the agricultural machine 10 may be a communication network within the agricultural machine 10 such as a Controller Area Network (CAN), a Local Interconnect Network (LIN), Media Oriented System Transport (MOST), Ethernet, and the like. The agricultural machine 10 is a device capable of downloading and updating firmware of a built-in non-volatile memory (not shown) from the terminal device 200 .

The terminal device 200 may be connected to the agricultural machine 10 (eg, On-Board Diagnostics (OBD)) through a connector, etc., and the unmanned aerial vehicle 100 through a local area network such as Ethernet, Wi-Fi, Bluetooth, and Zigbee. can be connected to The terminal device 200 may download the firmware of the agricultural machine 10 from the unmanned aerial vehicle 100 through a local area network, and may transmit the downloaded firmware to the agricultural machine 10 . In this case, the terminal device 200 may temporarily store the firmware downloaded from the unmanned aerial vehicle 100 in an internal flash memory in order to ensure the firmware transmission speed, and transmit the temporarily stored firmware to the agricultural machine 10 upon completion of the firmware download. can

The terminal device 200 may be a portable or stationary device capable of short-range wireless communication, and may be a prototype device being developed on/offline, or a built-in development board of a prototype, or the like.

A detailed description of the terminal device 200 will be described with reference to FIG. 4 .

When the unmanned aerial vehicle 100 receives a firmware update request signal including the location of the agricultural machine 10, it moves to the location of the agricultural machine 10 through flight, and when the agricultural machine 10 is recognized, the terminal device ( 200 ), the firmware of the agricultural machine 10 may be transmitted to the terminal device 200 . Here, the firmware update request signal may include identification information, location, and firmware version information of the agricultural machine 10 .

The firmware update system of the agricultural machine 10 according to the present embodiment may further include a management server (not shown) for remotely managing the agricultural machines 10 . The management server may manage identification information, firmware version information, and log files of the agricultural machines 10 . In addition, the management server may manage the unmanned aerial vehicles 100 for updating the agricultural machine firmware. That is, the management server may store the firmware in the unmanned aerial vehicle 100 before moving the unmanned aerial vehicle 100 to the location of the agricultural machine 10 requiring firmware update.

Hereinafter, a method of updating the firmware of the agricultural machine 10 in the system configured as described above will be described.

When the firmware update of the agricultural machine 10 is required, the user using the agricultural machine 10 may transmit the location of the agricultural machine 10 to the management server. In this case, the user may transmit the location of the agricultural machine 10 to the management server using his/her smart device (eg, mobile phone, etc.). In addition, when the agricultural machine 10 is equipped with a location estimation module (eg, a GPS module), the agricultural machine 10 may transmit its location to the management server.

The management server receiving the location of the agricultural machine 10 requiring firmware update may check whether the firmware of the agricultural machine 10 is stored in the unmanned aerial vehicle 100 . If the firmware is not stored in the unmanned aerial vehicle 100, the management server may transmit the corresponding firmware to the unmanned aerial vehicle 100 through wired/wireless communication, and the unmanned aerial vehicle 100 may store the firmware. When the firmware is stored in the unmanned aerial vehicle 100 , the management server may transmit a firmware update request signal including the agricultural machine location to the unmanned aerial vehicle 100 .

The unmanned aerial vehicle 100 moves to the location of the agricultural machine 10 through flight, connects to the terminal device 200 through short-distance communication when the agricultural machine 10 is recognized, and transfers the firmware of the agricultural machine 10 to the terminal device ( 200) can be transmitted. At this time, the unmanned aerial vehicle 100 may fly by automatically setting a route to the location of the agricultural machine, and may fly by receiving the route from the manager of the management server.

The terminal device 200 may temporarily store the firmware from the unmanned aerial vehicle 100 , and when the download of the firmware is completed, the temporarily stored firmware may be transmitted to the agricultural machine 10 . Then, the agricultural machine 10 may update the firmware.

2 is a block diagram schematically showing the configuration of the unmanned aerial vehicle 100 according to an embodiment of the present invention, and FIG. 3 is a block diagram for explaining the function of the control unit shown in FIG.

Referring to FIG. 2 , the unmanned aerial vehicle 100 according to an embodiment of the present invention includes a propeller 110 , a distance sensor 120 , an image sensor 130 , a control unit 140 , a storage unit 150 , and a wireless communication unit. (160).

The propeller 110 may be configured to generate thrust for flight to a target point.

The distance sensor 120 measures the distance and transmits the measured distance to the controller 140 . The distance from the surrounding object is detected using the distance sensor 120 so that the unmanned aerial vehicle 100 does not collide with the surrounding object during movement, and the distance to the object obtained through the image sensor 130 is detected to position the object. can be expressed as coordinates on the map.

The image sensor 130 acquires an image, and transmits the acquired image to the controller 140 . The image sensor 130 may include a charge-coupled device (CCD), a complementary metal-oxide semiconductor (CMOS), or the like.

The controller 140 may control the flight of the unmanned aerial vehicle 100 and, when adjacent to the target point, transmit the firmware of the agricultural machine 10 to the terminal device 200 through the wireless communication unit.

When the agricultural machine 10 is recognized through the image sensor, the control unit 140 transmits a connection request signal including authentication information to the terminal device 200 through the wireless communication unit 160, and authentication is successful from the terminal device 200 When the signal is received, the firmware stored in the storage unit 150 may be transmitted to the terminal device 200 through the wireless communication unit 160 .

As shown in FIG. 3 , the control unit 140 may include a route setting unit 141 , a flight control unit 142 , an agricultural machine recognition unit 143 , a connection control unit 144 , and a firmware transmission processing unit 145 . .

When receiving the firmware update request signal including the location of the agricultural machine 10 from the management server through the wireless communication unit 160, the route setting unit 141 goes to the location (destination) of the agricultural machine 10 so as not to collide with an obstacle. You can set the path. At this time, if a route to the destination is received from the management server, the route setting unit 141 may not set a route to the destination.

The flight controller 142 moves the unmanned aerial vehicle 100 to the path set by the route setting unit 141 and adjusts the speed of the propeller 110 to maintain the balance of the unmanned aerial vehicle 100 during flight. At this time, the flight control unit 142 may check whether the flight is on the path set by the path setting unit 141 through a simultaneous localization and mapping (SLAM) algorithm.

The agricultural machine recognition unit 143 recognizes the agricultural machine 10 from the image taken through the image sensor 130 using machine learning, and transmits a connection request signal including authentication information to the terminal device ( 200) is sent. Here, the authentication information may include identification information and a password of the unmanned aerial vehicle 100 .

Specifically, the agricultural machine recognition unit 143 may include machine learning software, and detects the object(s) using a machine learning algorithm in the image obtained through the image sensor 130 , and among the objects, the agricultural machine 10 ) can be recognized.

When the agricultural machine 10 is recognized, the agricultural machine recognition unit 143 may move to a distance capable of short-range communication with the terminal device 200 connected to the agricultural machine 10 using the distance sensor 120 . In addition, the agricultural machine recognition unit 143 may recognize the recognized top surface (eg, the roof) of the agricultural machine 10, and can be seated on the top surface. That is, when the top surface of the agricultural machine 10 is recognized, the agricultural machine recognition unit 143 may transmit a position movement signal to the flight control unit 142 . Then, the flight control unit 142 may move the position according to the position movement signal. As such, the flight control unit 142 may move up, down, left, and right directions according to the position movement signal to move to a position where short-range communication with the terminal device 200 is possible.

When the unmanned aerial vehicle 100 is seated at a location where short-range communication with the terminal device 200 is possible, the access control unit 144 transmits a connection request signal including unique identification information and password of the unmanned aerial vehicle 100 to the wireless communication unit 160 ) through the terminal device 200 , and may receive an authentication completion signal from the terminal device 200 . Here, the authentication completion signal may be an authentication success signal or an authentication failure signal, and the authentication success signal may be a signal indicating acceptance of firmware download.

In addition, when two or more devices capable of short-range communication are found, the access control unit 144 may broadcast a connection request signal and allow only the terminal device 200 that has transmitted an authentication success signal to perform short-distance communication.

The firmware transmission processing unit 145, upon receiving the authentication success signal from the terminal device 200, obtains the firmware corresponding to the agricultural machine identification information from the storage unit and transmits it to the terminal device 200 through the wireless communication unit 160. there is.

That is, the storage unit 150 may store the firmware for each agricultural machine type, and the firmware transmission processing unit 145 may determine the type of the corresponding agricultural machine 10 through the agricultural machine identification information, and firmware corresponding to the determined agricultural machine type. may be transmitted to the terminal device 200 . When the authentication success signal includes agricultural machine identification information and firmware version information, the firmware transmission processing unit 145 may acquire only the firmware to be updated and transmit it to the terminal device 200 .

Also, the firmware transmission processing unit 145 may divide the firmware to be updated in whole or in part and transmit it to the terminal device 200 based on the network transmission speed between the unmanned aerial vehicle 100 and the terminal device 200 . For example, when the network transmission speed is less than a predetermined speed, the firmware transmission processing unit 1450 may divide the firmware into parts and transmit it.

The controller 140 configured as described above controls the unmanned aerial vehicle 100 . The controller 140 controls the unmanned aerial vehicle 100 according to a program by loading firmware, etc. stored in the storage 150 including one or more execution units into the execution unit. The control unit indicates or includes a CPU, an MPU, a microcomputer, a central processing unit, and the like.

The wireless communication unit 160 includes a circuit or logic for Bluetooth and/or ZigBee communication, etc. (eg, a communication chipset, a communication chipset or its function may be built in the control unit according to a design example), such as Bluetooth or ZigBee Data may be transmitted/received to and from the terminal device 200 on the local area network through the communication network.

4 is a block diagram schematically showing the configuration of a terminal device 200 according to an embodiment of the present invention, and FIG. 5 is a diagram schematically showing the outside of the terminal device 200 according to an embodiment of the present invention.

Referring to FIG. 4 , the terminal device 200 according to an embodiment of the present invention includes a connection unit 210 , a manipulation unit 220 , a display unit 230 , a control unit 240 , a wireless communication unit 250 , and a storage unit 260 . ) and a power supply unit 270 .

The connection unit 210 may connect the terminal device 200 to the agricultural machine 10 . In this case, the connection unit 210 may be connected to an On-Board Diagnostics (OBD) terminal of the agricultural machine 10 . The connection unit 210 includes a circuit or logic for UART, SPI, SDIO, ISP, etc. (eg, a communication chipset, a communication chipset according to a design example, or its function may be built into the control unit) for serial communication Through this, it is possible to transmit and receive serial signals to and from the agricultural machine 10 .

The manipulation unit 220 receives a user's manipulation command. That is, the manipulation unit 220 may be formed on the front surface of the housing of the terminal device 200 as shown in FIG. 5 , and the user may input a manipulation command through the manipulation unit 220 . The manipulation unit 220 may receive an input such as a button, a touch panel, a touch pad, a mouse, an electronic pen, a setting pin, a switch, and the like, and transmit the received input to the control unit. Through the manipulation unit 220 , the user may provide various inputs necessary for controlling the terminal device 200 .

For example, a case in which the manipulation unit 220 is configured as a button as shown in FIG. 5 will be described. In this case, after connecting the terminal device 200 to the agricultural machine 10 through the connection unit 210 , when the user presses a button once, the control unit may cause the firmware download to be executed. When the user presses the button once more after the firmware download is completed, the control unit may receive a log file related to the operation of the agricultural machine 10 from the agricultural machine 10 through the connection unit 210, and the received log of the agricultural machine 10 The file may be transmitted to the unmanned aerial vehicle 100 through the wireless communication unit.

The display unit 230 is formed on the front surface of the housing of the terminal device 200 , and may display the current state of the terminal device 200 . The display unit 230 includes a power display unit 232 that lights up when power is applied, a firmware download display unit 234 that lights or flickers depending on the firmware download status, and a storage display unit 236 that displays that log files are being collected from the agricultural machine 10, etc. may include The display unit 230 may include a display such as an LCD or LED, a light emitting diode, and the like to display various data.

The control unit 240 receives an access request signal including authentication information from the unmanned aerial vehicle 100 through the wireless communication unit 250, performs authentication of authentication information, and an authentication completion signal including an authentication result and agricultural machine identification information. may be transmitted to the unmanned aerial vehicle 100 . That is, the control unit 240 receiving the access request signal may determine whether the identification information and password of the unmanned aerial vehicle 100 are previously registered information. If the determination result is pre-registered information, the control unit 240 may transmit an authentication success signal including agricultural machine identification information to the unmanned aerial vehicle 100 . In this case, the authentication success signal may be a signal indicating acceptance of firmware download. If the identification information and password of the unmanned aerial vehicle 100 are not previously registered information, the control unit 240 may transmit an authentication failure signal to the unmanned aerial vehicle 100 . Here, the authentication failure signal may be a signal for re-requesting the identification information and password of the unmanned aerial vehicle 100 .

If authentication is successful, the control unit 240 may download the firmware of the agricultural machine 10 from the unmanned aerial vehicle 100 through the wireless communication unit 250 and temporarily store it in the storage unit 260 , and transfer the temporarily stored firmware to the connection unit 210 . ) through the agricultural machine 10 can be transmitted. In this case, the controller 240 may verify the integrity of the received firmware data (eg, whether it is forged or altered). For example, the control unit 240 receives the firmware and the hash code from the unmanned aerial vehicle 100 , temporarily stores the received firmware in the storage unit 260 , calculates a hash code for the temporarily stored firmware data, and calculates the calculated When the hash code and the received hash code are the same, the temporarily stored firmware data may be transmitted to the agricultural machine 10 . When the firmware data is intact, the controller 240 may update the firmware for at least one IC stored in the agricultural machine 10 by using the firmware data.

Also, when the firmware update is not completed because an error occurs while the agricultural machine 10 is performing the firmware update, the controller 240 may update the firmware of the agricultural machine 10 by using the firmware data stored in the storage unit.

In addition, the control unit 240 may collect a log file including the state, setting, or version information of the agricultural machine 10 from the agricultural machine 10 through the connection unit 210 and store it in the storage unit 260 . When an error occurs in the agricultural machine 10 , the control unit 240 may transmit the log file to the management server through the unmanned aerial vehicle 100 . The management server can analyze the cause of the error using the log file, and can take action according to the analysis result.

The wireless communication unit 250 receives the firmware of the agricultural machine 10 from the unmanned aerial vehicle 100 through a local area network. The wireless communication unit 250 may be a short-distance communication module such as Bluetooth, Zigbee, or Wi-Fi.

The storage unit 260 stores various data and programs including non-volatile memory and further volatile memory. The storage unit 260 includes one or more non-volatile memories that store at least firmware (program). The non-volatile memory stores firmware and version information of the stored firmware. The non-volatile memory may further include an area for temporarily storing firmware to be updated. A specific memory area of the non-volatile memory may be previously specified as a firmware area, and the controller 240 may recognize it. Also, the specific memory area of the nonvolatile memory may be specified as a temporary update area in which firmware to be updated is temporarily stored, and the controller 240 may recognize or set it.

The firmware may represent a whole (all) program used in the agricultural machine 10 or may represent a part of an updateable program. Depending on the design example, the update control object (program) is embedded in the firmware or the update control object (program) is configured separately from the updateable part of the firmware.

The power supply unit 270 is a configuration for supplying power to each component of the terminal device 200 , and for example, a lithium iron phosphate (LiFePO4) battery DC 12V 8A can be applied.

6 is a view for explaining a firmware update method of an agricultural machine according to an embodiment of the present invention.

6, when the unmanned aerial vehicle 100 receives a firmware update request signal including the location of the agricultural machine 10 from the management server (S610), the unmanned aerial vehicle 100 is the position of the agricultural machine 10 through flight moves to (S620). At this time, the unmanned aerial vehicle 100 may directly set a route to the location (destination) of the agricultural machine 10 so as not to collide with the obstacle, and may receive a route from the management server to the destination.

When step S620 is performed, the unmanned aerial vehicle 100 recognizes the agricultural machine 10 through the image sensor (S630), and transmits a connection request signal including authentication information to the terminal device 200 (S640). The unmanned aerial vehicle 100 may recognize the corresponding agricultural machine 10 using a machine learning algorithm from the image acquired through the image sensor 130 . When the agricultural machine 10 is recognized, the unmanned aerial vehicle 100 may move to a distance capable of short-range communication with the terminal device 200 connected to the agricultural machine 10 . When seated at a location where short-range communication is possible, the unmanned aerial vehicle 100 may transmit an access request signal including unique identification information and a password of the unmanned aerial vehicle 100 to the terminal device 200 .

When step S640 is performed, the terminal device 200 authenticates the unique identification information and password of the unmanned aerial vehicle 100 (S650). That is, the terminal device 200 compares the unique identification information and password of the unmanned aerial vehicle 100 with the previously registered information, and when the comparison result matches, it can be determined as authentication success, and when it does not match, it is determined as authentication failure can do.

As a result of the authentication in step S650 , if the authentication of the unmanned aerial vehicle 100 is successful, the control device transmits a firmware download acceptance signal to the unmanned aerial vehicle 100 ( S660 ). Here, the firmware download acceptance signal may include at least one of terminal device 200 identification information, agricultural machine identification information, and firmware version information.

Upon receiving the firmware download acceptance signal, the unmanned aerial vehicle 100 transmits the firmware of the corresponding agricultural machine 10 to the terminal device 200 (S670).

Then, the terminal device 200 downloads the firmware from the unmanned aerial vehicle 100 (S680), and when the download is completed, transmits the downloaded firmware to the agricultural machine 10 (S690). In this case, the terminal device 200 may download and temporarily store the firmware in the flash memory. When the download of the firmware is completed, the terminal device 200 may turn on the firmware download display unit. Then, the terminal device 200 may transmit the downloaded firmware to the connected agricultural machine 10 . That is, upon completion of storing the firmware in the flash memory, the terminal device 200 may transmit the firmware to the agricultural machine 10 immediately. In this case, the terminal device 200 may blink the firmware download display unit. Then, the user can confirm that the firmware is being transmitted to the agricultural machine 10 through the firmware download display unit. When the firmware transmission to the agricultural machine 10 is completed, the terminal device 200 may turn off the firmware download display unit. The terminal device 200 that has received the firmware may update the pre-stored firmware. After the firmware update is completed, when the user presses the button of the terminal device 200 , the storage indicator may be turned on. At this time, the terminal device 200 may be changed to a mode for collecting log files of the agricultural machine 10 , and may collect the log files from the agricultural machine 10 and transmit it to the unmanned aerial vehicle 100 . The unmanned aerial vehicle 100 may transmit the collected log file to the management server, and the management server may use the log file to analyze the corresponding agricultural machine 10 .

If, as a result of the authentication in step S650, authentication of the unmanned aerial vehicle 100 fails, the terminal device 200 requests and receives authentication information again (S700), and performs step S650.

As described above, in the firmware update system and method of the agricultural machine 10 according to an embodiment of the present invention, the firmware of the agricultural machine 10 is downloaded from the unmanned aerial vehicle 100 through short-range wireless communication, and the downloaded firmware is Since it is updated in the agricultural machine 10, it is possible to reduce the waste of communication costs such as LTE.

In the firmware update system and method of the agricultural machine 10 according to another embodiment of the present invention, the firmware of the agricultural machine 10 is downloaded using the unmanned aerial vehicle 100, so that the agricultural machine 10 is used quickly at the current place. You can update the firmware.

Although the present invention has been described with reference to the embodiment shown in the drawings, this is merely exemplary, and it is understood that various modifications and equivalent other embodiments are possible by those of ordinary skill in the art. will understand

Therefore, the true technical protection scope of the present invention should be defined by the following claims.

100: unmanned aerial vehicle
1100: propeller
120: distance sensor
130: image sensor
140, 240: control unit
150, 260: storage
160, 250: wireless communication unit
200: terminal device
210: connection part
220: control panel
230: display
270: power supply

Claims (12)

A terminal device capable of short-range wireless communication and connected to agricultural machinery; and
When a firmware update request signal including the location of the agricultural machine is received, it moves to the location through flight, and when the agricultural machine is recognized, it connects to the terminal device through short-range wireless communication, and transmits the firmware of the agricultural machine to the terminal device including unmanned aerial vehicles that
The terminal device is
Install or update the firmware received from the unmanned aerial vehicle in the agricultural machine,
The terminal device is
a connecting portion for connecting to the agricultural machine;
a wireless communication unit for short-range communication with the unmanned aerial vehicle;
storage; and
Receives an access request signal including authentication information from the unmanned aerial vehicle through the wireless communication unit, and transmits an authentication success signal including agricultural machine identification information to the unmanned aerial vehicle if the authentication information matches the previously registered information, A control unit for receiving the firmware from the unmanned aerial vehicle and storing it in the storage unit, and transmitting the stored firmware to the agricultural machine through the connection unit,
The control unit is
Receive firmware and hash code from the unmanned aerial vehicle, temporarily store the received firmware in the storage unit to ensure a firmware transmission speed, calculate a hash code for the temporarily stored firmware data, and When the received hash code is the same, the temporarily stored firmware data is transmitted to the agricultural machine,
The control unit is
When the firmware update is not completed because an error occurs while the agricultural machine is performing the firmware update, the firmware update system of the agricultural machine, characterized in that for updating the firmware of the agricultural machine by using the firmware data stored in the storage unit.
According to claim 1,
The unmanned aerial vehicle is
a wireless communication unit for short-distance communication with the terminal device;
A storage unit storing firmware for each agricultural machine;
an image sensor for acquiring an image; and
When the agricultural machine is recognized through the image sensor, a connection request signal including authentication information is transmitted to the terminal device through the wireless communication unit, and when an authentication success signal is received from the terminal device, the corresponding firmware stored in the storage unit Firmware update system for agricultural machinery, characterized in that it comprises a control unit for transmitting the to the terminal device through the wireless communication unit.
3. The method of claim 2,
The control unit of the unmanned aerial vehicle,
a path setting unit for setting a path to the location of the agricultural machine as a destination;
a flight control unit that moves to the set path and adjusts the speed of the propeller;
An agricultural machine recognition unit for recognizing the agricultural machine in the image taken through the image sensor using machine learning, and to be seated in a position where short-range wireless communication with a terminal device connected to the recognized agricultural machine is possible;
a connection processing unit for transmitting a connection request signal including the unique identification information and password of the unmanned aerial vehicle to the terminal device through a wireless communication unit, and receiving an authentication completion signal from the terminal device; and
and a firmware transmission processing unit that, when receiving an authentication success signal including agricultural machine identification information from the terminal device, acquires the firmware corresponding to the agricultural machine identification information from the storage unit and transmits it to the terminal device of the firmware update system.
4. The method of claim 3,
The firmware transmission processing unit,
Firmware update system for agricultural machinery, characterized in that based on the network transmission speed between the unmanned aerial vehicle and the terminal device, the firmware to be updated is divided into whole or part and transmitted to the terminal device.
delete According to claim 1,
The terminal device is
an operation unit receiving an operation command input from a user; and
The firmware update system for agricultural machinery, characterized in that it further comprises a display unit for displaying the state of at least one of power application, firmware download, and log file collection of the agricultural equipment according to the operation command.
delete According to claim 1,
The control unit of the terminal device,
A firmware update system for agricultural machines, characterized in that the log files related to the operation of the agricultural machines are collected through the connection unit, and the log files are transmitted to the unmanned aerial vehicle through the wireless communication unit.
When the unmanned aerial vehicle receives a firmware update request signal including the location of the agricultural machine, moving to the location through flight and recognizing the agricultural machine;
transmitting, by the unmanned aerial vehicle, a connection request signal including unique identification information and a password to a terminal device connected to the agricultural machine through short-range wireless communication;
performing, by the terminal device, authentication of the unique identification information and password, and transmitting a firmware download acceptance signal to the unmanned aerial vehicle when authentication is successful;
transmitting, by the unmanned aerial vehicle, firmware of the agricultural machine to the terminal device; and
Comprising the step of storing the firmware by the terminal device and transmitting the stored firmware to the agricultural machine,
In the step of the terminal device storing the firmware and transmitting the stored firmware to the agricultural machine,
The terminal device receives the firmware and hash code from the unmanned aerial vehicle and temporarily stores the received firmware in a storage unit to ensure a firmware transmission speed, calculates a hash code for the temporarily stored firmware data, and calculates the calculation When the hash code and the received hash code are the same, the temporarily stored firmware data is transmitted to the agricultural machine,
The terminal device, when the firmware update is not completed because an error occurs while the agricultural machine is performing firmware update, the firmware of the agricultural machine, characterized in that for updating the firmware of the agricultural machine by using the firmware data stored in the storage unit How to update.
10. The method of claim 9,
In the step of transmitting the firmware of the agricultural machine to the terminal device,
The firmware update method for agricultural machinery, characterized in that the unmanned aerial vehicle divides the firmware to be updated in whole or in part and transmits the firmware to the terminal device based on the network transmission speed with the terminal device.
delete 10. The method of claim 9,
The method of updating the firmware of agricultural machinery, characterized in that the method further comprises the step of collecting, by the terminal device, a log file related to the operation of the agricultural machine, and transmitting the log file to the unmanned aerial vehicle through short-range wireless communication.

Images