WO2023032850A1 - ソフトウェア更新システム、作業機械およびソフトウェア更新方法 - Google Patents
ソフトウェア更新システム、作業機械およびソフトウェア更新方法 Download PDFInfo
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- WO2023032850A1 WO2023032850A1 PCT/JP2022/032230 JP2022032230W WO2023032850A1 WO 2023032850 A1 WO2023032850 A1 WO 2023032850A1 JP 2022032230 W JP2022032230 W JP 2022032230W WO 2023032850 A1 WO2023032850 A1 WO 2023032850A1
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Classifications
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F8/00—Arrangements for software engineering
- G06F8/60—Software deployment
- G06F8/65—Updates
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/20—Drives; Control devices
- E02F9/2025—Particular purposes of control systems not otherwise provided for
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/20—Drives; Control devices
- E02F9/2025—Particular purposes of control systems not otherwise provided for
- E02F9/2054—Fleet management
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/20—Drives; Control devices
- E02F9/22—Hydraulic or pneumatic drives
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/26—Indicating devices
- E02F9/261—Surveying the work-site to be treated
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- G—PHYSICS
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- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
- G06F11/14—Error detection or correction of the data by redundancy in operation
- G06F11/1402—Saving, restoring, recovering or retrying
- G06F11/1415—Saving, restoring, recovering or retrying at system level
- G06F11/1433—Saving, restoring, recovering or retrying at system level during software upgrading
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
- E02F3/36—Component parts
- E02F3/42—Drives for dippers, buckets, dipper-arms or bucket-arms
- E02F3/43—Control of dipper or bucket position; Control of sequence of drive operations
- E02F3/435—Control of dipper or bucket position; Control of sequence of drive operations for dipper-arms, backhoes or the like
Definitions
- Patent Literature 1 discloses a technique for updating software of components of a working machine.
- the software to be installed on the work machine is received via the network.
- work machines are not necessarily in an environment where they can connect to the network all the time, and may not be able to connect to the network for several days. Therefore, when updating a plurality of components according to the procedure described in Patent Document 1, there is a possibility that some of the plurality of components will be updated and the remaining components will not be updated before being disconnected from the network. In this case, the work machine becomes connectable to the network again and cannot realize functions realized by interlocking a plurality of components until the remaining components are updated.
- An object of the present disclosure is to provide a software update system, a working machine, and a software update method that can increase the certainty of updating multiple components in order to realize functions realized by interlocking multiple components. That's what it is.
- a software update system is a software update system for updating a plurality of components provided in a work machine, the first update system used for updating a first component that is one of the plurality of components.
- Receiving from a server data including software and second software used for updating a second component, which is one of the plurality of components, for realizing functions related to the first software a storage unit for storing the received first software and second software; and after the first software and the second software are stored in the storage unit, the first software and the second software. and an updating unit that updates the first component and the second component based on.
- the software update system can increase the certainty of updating multiple components in order to implement functions realized by interlocking multiple components.
- FIG. 1 is a configuration diagram of a software update system according to a first embodiment
- FIG. 1 is a perspective view showing the appearance of a working machine according to a first embodiment
- FIG. It is a figure which shows the imaging range of several cameras with which the work machine which concerns on 1st Embodiment is provided. It is a figure which shows the structure inside the cab which concerns on 1st Embodiment.
- 2 is a schematic block diagram showing the hardware configuration of the control system of the work machine according to the first embodiment
- FIG. 3 is a block diagram showing the configuration of a gateway function controller according to the first embodiment
- FIG. 3 is a block diagram showing the configuration of a component management server according to the first embodiment
- FIG. 1 is a configuration diagram of a software update system according to a first embodiment
- FIG. 1 is a perspective view showing the appearance of a working machine according to a first embodiment
- FIG. It is a figure which shows the imaging range of several cameras with which the work machine which concerns on 1st Embodi
- FIG. 2 is a block diagram showing the configuration of a software management server according to the first embodiment;
- FIG. It is a figure which shows an example of the software table which concerns on 1st Embodiment.
- FIG. 4 is a sequence diagram showing a method of updating component software in the software update system according to the first embodiment; 7 is a flowchart showing product number confirmation processing of the gateway function controller according to the first embodiment; 7 is a flowchart showing single software update processing by the gateway function controller according to the first embodiment; 4 is a flow chart showing a plurality of software update processes by the gateway function controller according to the first embodiment;
- FIG. 1 is a configuration diagram of a software update system 1 according to the first embodiment.
- the software update system 1 manages software product numbers of components 200 provided in a plurality of work machines 100 .
- a software update system 1 includes a plurality of work machines 100 , a component management server 300 , a software management server 500 and a developer terminal 700 .
- Software is data used to implement hardware functions. Software may include programs and configuration data.
- the software product number is a unique identifier for specifying the software.
- the product number of software is represented by, for example, a combination of numbers or alphabets.
- Each work machine 100 comprises a gateway function controller 201 and two or more components 200.
- the gateway function controller 201 is also an example of the component 200 .
- Gateway function controller 201 is connected to the internal network and external network of work machine 100 .
- the internal network is a network that connects components 200 inside work machine 100 .
- the external network is a wide area network (WAN) that connects work machine 100 and devices outside the work machine.
- Each component 200 performs a function for controlling work machine 100 or monitoring the state of work machine 100 .
- Each component 200 and gateway function controller 201 are connected to each other via an internal network of work machine 100 .
- some components 200 can receive calculation results of other components 200 via the internal network and perform further calculations.
- a hydraulic excavator is illustrated as the working machine 100 in FIG. 1, other working machines such as a bulldozer, a dump truck, and a wheel loader may be used.
- the component management server 300 stores the product numbers of the hardware and software of the components 200 provided in the plurality of work machines 100 and provides the work machines 100 with data for updating the software of the components 200 . Specifically, component management server 300 provides package data including difference data between pre-update software and post-update software of component 200 to work machine 100 via the external network. Note that when updating multiple components 200 is necessary to implement a predetermined function, the component management server 300 includes multiple differential data used for updating multiple components 200 in one package data.
- the software management server 500 stores a plurality of pieces of software with different product numbers applicable to the component 200 associated with the component 200 hardware product number.
- the software management server 500 also generates difference data for updating software and transmits it to the component management server 300 .
- the hardware product number is a unique identifier for specifying the component 200 .
- a hardware product number is represented by, for example, a combination of numbers or alphabets.
- the developer terminal 700 is a terminal operated by a software developer.
- a developer develops software using the developer terminal 700 and transmits the developed software from the developer terminal 700 to the software management server 500 .
- the developer associates product number information indicating the product number of each component to which the software is applicable with the data of the plurality of software. Send to software management server 500 .
- FIG. 2 is a perspective view showing the appearance of work machine 100.
- a work machine 100 that is a work machine includes a hydraulically operated work machine 130 , a revolving body 120 that supports the work machine 130 , and a traveling body 110 that supports the revolving body 120 .
- Traveling body 110 supports work machine 100 so that it can travel.
- the traveling body 110 includes two endless tracks 111 provided on the left and right sides and two traveling motors 112 for driving each endless track 111 .
- the revolving body 120 is supported by the traveling body 110 so as to be able to revolve about a revolving center.
- Work implement 130 is hydraulically driven.
- Work implement 130 is supported on the front portion of revolving body 120 so as to be vertically drivable.
- the operator's cab 140 is a space for an operator to operate the work machine 100 .
- the driver's cab 140 is provided in the front left portion of the revolving body 120 .
- a portion of the revolving body 120 to which the work implement 130 is attached is referred to as a front portion.
- the front portion is referred to as the rear portion
- the left portion is referred to as the left portion
- the right portion is referred to as the right portion.
- the swing body 120 includes an engine 121 , a hydraulic pump 122 , a control valve 123 , a swing motor 124 and a fuel injection device 125 .
- the engine 121 is a prime mover that drives the hydraulic pump 122 .
- Hydraulic pump 122 is a variable displacement pump driven by engine 121 . Hydraulic pump 122 supplies hydraulic fluid to each actuator (boom cylinder 131C, arm cylinder 132C, bucket cylinder 133C, travel motor 112, and swing motor 124) through control valve 123.
- the control valve 123 controls the flow rate of hydraulic oil supplied from the hydraulic pump 122 .
- the swing motor 124 is driven by hydraulic fluid supplied from the hydraulic pump 122 via the control valve 123 to swing the swing body 120 .
- Fuel injector 125 injects fuel into engine 121 .
- Revolving body 120 is provided with a plurality of cameras 206 that capture images of the surroundings of work machine 100 .
- FIG. 3 is a diagram showing imaging ranges of the plurality of cameras 206 included in the work machine 100 according to the first embodiment.
- the revolving body 120 includes a left rear camera 206A that captures a left rear range Ra of the periphery of the revolving body 120, a rear camera 206B that captures a rear range Rb of the periphery of the revolving body 120, and a revolving body 120.
- a right rear camera 206C that captures an image of the right rear range Rc and a right front camera 206D that captures an image of a right front range Rd around the revolving body 120 are provided. Part of the imaging ranges of the cameras 206 may overlap each other.
- the imaging range of the plurality of cameras 206 covers the entire perimeter of work machine 100 excluding left front range Re visible from operator's cab 140 .
- the camera 206 according to the first embodiment captures images of the left rear, rear, right rear, and right front of the revolving body 120, but other embodiments are not limited to this.
- the number and coverage of cameras 206 according to other embodiments may differ from the examples shown in FIGS.
- work implement 130 includes boom 131, arm 132, bucket 133, boom cylinder 131C, arm cylinder 132C, and bucket cylinder 133C.
- a base end of the boom 131 is attached to the revolving body 120 via a boom pin.
- Arm 132 connects boom 131 and bucket 133 .
- the base end of the arm 132 is attached to the tip of the boom 131 via an arm pin.
- the bucket 133 includes a blade for excavating earth and sand and a container for containing the excavated earth and sand.
- the base end of the bucket 133 is attached to the tip of the arm 132 via a bucket pin.
- a boom cylinder 131C is a hydraulic cylinder for operating the boom 131 .
- a base end portion of the boom cylinder 131 ⁇ /b>C is attached to the revolving body 120 .
- a tip portion of the boom cylinder 131 ⁇ /b>C is attached to the boom 131 .
- Arm cylinder 132C is a hydraulic cylinder for driving arm 132 .
- a base end portion of the arm cylinder 132C is attached to the boom 131 .
- a tip portion of the arm cylinder 132C is attached to the arm 132 .
- Bucket cylinder 133C is a hydraulic cylinder for driving bucket 133 .
- a base end of the bucket cylinder 133C is attached to the arm 132 .
- a tip of the bucket cylinder 133 ⁇ /b>C is attached to a link member connected to the bucket 133 .
- FIG. 4 is a diagram showing the internal configuration of the driver's cab 140 according to the first embodiment.
- a driver's seat 142 , an operating device 143 and a monitor component 202 are provided in the driver's cab 140 .
- the operation device 143 is a device for driving the traveling body 110, the revolving body 120, and the working machine 130 by manual operation by the operator.
- the operating device 143 includes a left operating lever 143LO, a right operating lever 143RO, a left foot pedal 143LF, a right foot pedal 143RF, a left travel lever 143LT, and a right travel lever 143RT.
- the left operating lever 143LO is provided on the left side of the driver's seat 142.
- the right operating lever 143RO is provided on the right side of the driver's seat 142. As shown in FIG.
- the left operation lever 143LO is an operation mechanism for rotating the rotating body 120 and excavating/dumping the arm 132. Specifically, when the operator of work machine 100 tilts left operation lever 143LO forward, arm 132 performs a dump operation. When the operator of work machine 100 tilts left operation lever 143LO rearward, arm 132 excavates. Further, when the operator of work machine 100 tilts left operation lever 143LO rightward, revolving body 120 turns rightward. When the operator of work machine 100 tilts left operation lever 143LO leftward, revolving body 120 turns left.
- the revolving body 120 when the left operating lever 143LO is tilted in the front-rear direction, the revolving body 120 turns to the right or left, and when the left control lever 143LO is tilted in the left-right direction, the arm 132 performs excavation or excavation. Dump operation is allowed.
- the right operation lever 143RO is an operation mechanism for performing excavation/dumping operations of the bucket 133 and raising/lowering operations of the boom 131. Specifically, when the operator of work machine 100 tilts right operation lever 143RO forward, boom 131 is lowered. Further, when the operator of work machine 100 tilts right operation lever 143RO rearward, boom 131 is raised. When the operator of work machine 100 tilts right operation lever 143RO rightward, bucket 133 is dumped. When the operator of work machine 100 tilts right operation lever 143RO leftward, bucket 133 performs an excavation operation.
- the bucket 133 when the right operating lever 143RO is tilted in the front-rear direction, the bucket 133 is dumped or excavated, and when the right control lever 143RO is tilted in the left-right direction, the boom 131 is raised or lifted. Lowering may be performed.
- the left foot pedal 143LF is arranged on the left side of the floor in front of the driver's seat 142 .
- the right foot pedal 143RF is arranged on the right side of the floor in front of the driver's seat 142 .
- the left travel lever 143LT is pivotally supported by the left foot pedal 143LF, and configured so that the inclination of the left travel lever 143LT and the depression of the left foot pedal 143LF are interlocked.
- the right running lever 143RT is pivotally supported by the right foot pedal 143RF, and configured so that the tilting of the right running lever 143RT and the depression of the right foot pedal 143RF are interlocked.
- the left foot pedal 143LF and the left traveling lever 143LT correspond to rotational driving of the left crawler belt of the traveling body 110. Specifically, when the operator of work machine 100 tilts left foot pedal 143LF or left travel lever 143LT forward, the left crawler belt rotates forward. When the operator of work machine 100 pushes left foot pedal 143LF or left travel lever 143LT backward, the left crawler belt rotates backward.
- the right foot pedal 143RF and the right traveling lever 143RT correspond to rotational driving of the right crawler belt of the traveling body 110. Specifically, when the operator of work machine 100 tilts right foot pedal 143RF or right travel lever 143RT forward, the right crawler belt rotates forward. Further, when the operator of work machine 100 tilts right foot pedal 143RF or right travel lever 143RT backward, the right crawler belt rotates backward.
- FIG. 5 is a schematic block diagram showing the hardware configuration of the control system of work machine 100 according to the first embodiment.
- Work machine 100 includes gateway function controller 201 , monitor component 202 , control controller 203 , engine controller 204 and perimeter monitor component 205 .
- Gateway function controller 201, monitor component 202, control controller 203, engine controller 204, perimeter monitoring component 205 and camera 206 are connected to each other via an in-vehicle network.
- gateway function controller 201, monitor component 202, control controller 203, and engine controller 204 are connected via a first network N1 such as a CAN (Controller Area Network).
- the monitoring component 205 is connected via a second network N2 such as Ethernet.
- the gateway function controller 201 , monitor component 202 , control controller 203 , engine controller 204 , perimeter monitoring component 205 and camera 206 are all examples of components 200 provided on work machine 100 .
- the gateway function controller 201 converts the communication protocols of the first network N1 and the second network N2 to each other, and performs communication between the component 200 connected to the first network N1 and the component 200 connected to the second network N2.
- a monitor component 202 is provided in the cab 140 and controls the display of the display.
- the controller 203 acquires various data related to the hydraulic equipment that controls the operation of the work machine 130 using a sensor (not shown), and outputs a control signal for controlling the hydraulic equipment according to the operation of the operating device 143 . That is, the controller 203 controls driving of the boom cylinder 131C, the arm cylinder 132C, the bucket cylinder 133C, the travel motor 112, the turning motor 124, and the like.
- the engine controller 204 acquires various data related to the engine 121 using a sensor (not shown), and controls the engine 121 by instructing the fuel injection device 125 about the fuel injection amount.
- the perimeter monitoring component 205 generates a bird's-eye view image based on the image captured by the camera 206 and causes the monitor component 202 to display the bird's-eye view image.
- FIG. 6 is a block diagram showing the configuration of the gateway function controller 201 according to the first embodiment.
- the gateway function controller 201 comprises a physically separate first board 210 and second board 220 .
- the first board 210 comprises a first processor 211 , a first main memory 213 , a first storage 215 and a first interface 217 .
- the first processor 211 acquires a program from the first storage 215, develops it in the first main memory 213, and executes predetermined processing according to the program.
- the first storage 215 stores the same software including the program in two systems as main software and standby software.
- Main software is software that is used when the function of the software is exhibited during normal times.
- Standby software is software that is used to restore the main software when the main software fails. That is, the first board 210 exhibits its function by executing main software.
- First substrate 210 is an example of component 200 .
- First interface 217 is connected to a plurality of components 200 for controlling work machine 100 via first network N1, which is an internal network. Examples of the components 200 connected to the first board 210 include a monitor component 202, a control controller 203, an engine controller 204, and the like.
- a component 200 connected to the first network N1 performs basic motion control regarding the motion of the work machine 100 .
- the second board 220 comprises a second processor 221 , a second main memory 223 , a second storage 225 and a second interface 227 .
- the second processor 221 acquires a program from the second storage 225, develops it in the second main memory 223, and executes predetermined processing according to the program.
- Second interface 227 is connected to a plurality of components 200 for extending the functions of work machine 100 via second network N2, which is an internal network. Examples of the components 200 connected to the second board 220 include a perimeter monitoring component 205, a camera 206, and a guidance monitor for providing guidance to the operator regarding the positional relationship between the design surface of the construction site and the working machine 100.
- Second board 220 may be an example of a component of a work machine.
- First board 210 and second board 220 also store connection information indicating routes to components 200 provided in work machine 100 .
- the connection information may be, for example, a routing table.
- the connection information is updated by exchanging information between first board 210 and second board 220 each time component 200 is attached or removed from work machine 100 .
- the first substrate 210 or the second substrate 220 may include a custom LSI (Large Scale Integrated Circuit) such as a PLD (Programmable Logic Device) in addition to or instead of the above configuration. good.
- PLDs include PAL (Programmable Array Logic), GAL (Generic Array Logic), CPLD (Complex Programmable Logic Device), and FPGA (Field Programmable Gate Array).
- PAL Programmable Array Logic
- GAL Generic Array Logic
- CPLD Complex Programmable Logic Device
- FPGA Field Programmable Gate Array
- first storage 215 and the second storage 225 examples include magnetic disks, magneto-optical disks, optical disks, semiconductor memories, and the like.
- the first storage 215 and the second storage 225 may be internal media directly connected to the bus line, or external media connected to the gateway function controller 201 via the first interface 217 or communication line. good too.
- primary storage 215 and secondary storage 225 are non-transitory, tangible storage media.
- the computational resources of the second board 220 are larger than the computational resources of at least one component 200 .
- the computational resources of the second board 220 are preferably larger than the computational resources of the first board 210 .
- a computational resource is a resource used in computations on a computer.
- a computational resource is a resource that provides computing time or storage capacity that a computer has. Examples of computational resources include CPU, main memory, storage, and the like. Note that the capacity of the second main memory 223 is preferably larger than the capacity of the first main memory 213 . Also, the capacity of the second storage 225 is preferably larger than the capacity of the first storage 215 .
- the first processor 211 functions as an input unit 2111, an access unit 2112, an update unit 2113, and an output unit 2114 by executing programs stored in the first storage 215.
- the input unit 2111 receives input of an instruction to acquire the software of the component 200 from the second board 220 .
- the input unit 2111 also receives an input of an instruction to update the software of the component 200 from the second board 220 .
- the access unit 2112 acquires the current software from the component 200 according to the software acquisition instruction received from the second board 220 .
- Current software refers to software stored in the component 200 and being executed to perform its function at the time of access by the access unit 2112 .
- the access unit 2112 also outputs software to the component 200 according to the software update instruction received from the second board 220 .
- the component 200 that received the software rewrites the software.
- the update unit 2113 acquires main software from the first storage 215 according to the software update instruction received from the second board 220 .
- the updating unit 2113 rewrites the backup software and the main software according to the software update instruction received from the second board 220 .
- the output unit 2114 outputs the software acquired by the access unit 2112 or the update unit 2113 to the second board 220 .
- the second processor 221 functions as a reception unit 2211, an output unit 2212, an input unit 2213, an access unit 2214, a software generation unit 2215, and a transmission unit 2216 by executing programs stored in the second storage 225. Also, a storage area for the standby software storage unit 2251 is secured in the second storage 225 .
- the receiving unit 2211 receives from the component management server 300 a package file containing difference data of the software of the component 200 and an instruction to update the software of the component.
- the receiving unit 2211 also receives an instruction to confirm the product number of the component software.
- the output unit 2212 outputs a software acquisition instruction to the first board 210 when the update target component 200 is connected to the first board 210 or when the update target component 200 is the first board 210 . .
- the output unit 2212 also outputs a software update instruction to the first substrate 210 .
- the input unit 2213 receives input of software of the component 200 to be updated from the first board 210 .
- the access unit 2214 acquires software from the component 200 to be updated when the component 200 to be updated is connected to the second board 220 .
- the access unit 2214 also outputs the software generated by the software generation unit 2215 to the update target component 200 .
- the component 200 that received the software rewrites the software.
- the access unit 2214 is an example of an update unit that updates the component 200 based on the received software.
- the software generation unit 2215 generates updated software by applying the difference data received by the reception unit 2211 to the current software input to the input unit 2213 or the current software acquired by the access unit 2214 .
- the differential data holds a combination of the offset, which is the number of bits from the beginning of the file, and the post-change value for each change.
- the software generation unit 2215 identifies the applicable portion of the current software based on the offset of the difference data, and rewrites the pre-change value indicated by the difference data in the applicable portion with the post-change value. As a result, the software generation unit 2215 can generate updated software from the current software and the difference data.
- the transmission section 2216 transmits a response to the request received by the reception section 2211 to the component management server 300 .
- FIG. 7 is a block diagram showing the configuration of the component management server 300 according to the first embodiment.
- the component management server 300 comprises a processor 310 , main memory 330 , storage 350 and interface 370 .
- the processor 310 acquires a program from the storage 350, develops it in the main memory 330, and executes predetermined processing according to the program.
- a communication device (not shown) having a communication function via a wide area network is connected to the interface 370, and is communicably connected to the second board 220 of the gateway function controller 201 and the software management server 500 via the communication device. be.
- the program stored in the storage 350 may be for realizing part of the functions that the component management server 300 is to exhibit.
- the component management server 300 may include a custom LSI such as a PLD in addition to or instead of the above configuration.
- part or all of the functions implemented by the component management server 300 may be implemented by the integrated circuit.
- Examples of the storage 350 include magnetic disks, magneto-optical disks, optical disks, and semiconductor memories.
- the storage 350 may be an internal medium directly connected to the bus line, or an external medium connected to the component management server 300 via the interface 370 or communication line.
- the program may be distributed to component management server 300 via a communication line without being stored in storage 350, and processor 310 may execute the program.
- storage 350 is a non-transitory, tangible storage medium.
- the processor 310 includes a differential data receiving unit 311, an update target identifying unit 312, a product number checking unit 313, an update instruction transmitting unit 314, and a table updating unit 315 by executing a program stored in the storage 350.
- a storage area for a component table 351 is secured in the storage 350 .
- the component table 351 stores the product numbers of the hardware and software of the components 200 included in each of the work machines 100 . That is, the component table 351 associates and stores the machine ID of the work machine 100, the hardware product number of the component, and the software product number.
- the difference data receiving unit 311 receives, from the software management server 500, the software difference data and the software product number to which the difference data is applied.
- the update target identifying unit 312 refers to the component table 351 and identifies the component 200 related to the software product number received by the difference data receiving unit 311 and the work machine 100 including the component 200 .
- the product number confirmation unit 313 transmits a confirmation request for the software product number of the component 200 to be updated to the work machine 100 identified by the update target identification unit 312 .
- Product number confirmation unit 313 receives the confirmation result of the software product number from work machine 100 .
- update instruction transmission unit 314 updates the software to work machine 100.
- the software update instruction includes the difference data received by the difference data receiving unit 311, the gateway script to be executed by the gateway function controller 201, and the component script to be executed by the component 200 to be updated.
- the gateway script describes a procedure for the gateway function controller 201 to process the difference data included in the update instruction.
- the component script describes the procedure for installing the updated program.
- the table update unit 315 determines whether the software has been updated based on the confirmation result received from the work machine 100 by the product number confirmation unit 313 after the software update instruction.
- the table update unit 315 updates the component table 351 when it determines that the software has been updated.
- FIG. 8 is a block diagram showing the configuration of the software management server 500 according to the first embodiment.
- the software management server 500 comprises a processor 510 , main memory 530 , storage 550 and interface 570 .
- Processor 510 acquires a program from storage 550, develops it in main memory 530, and executes predetermined processing according to the program.
- the interface 570 is communicably connected to the component management server 300 .
- the programs stored in the storage 550 may be for realizing part of the functions that the software management server 500 is to exhibit.
- the software management server 500 may include a custom LSI such as a PLD in addition to or instead of the above configuration. In this case, part or all of the functions implemented by the software management server 500 may be implemented by the integrated circuit.
- Examples of the storage 550 include magnetic disks, magneto-optical disks, optical disks, and semiconductor memories.
- the storage 550 may be an internal medium directly connected to the bus line, or an external medium connected to the software management server 500 via the interface 570 or communication line.
- this program may be distributed to software management server 500 via a communication line, and processor 510 may execute the program.
- storage 550 is a non-transitory, tangible storage medium.
- the processor 510 includes a software recording unit 511, a difference data generation unit 512, and a difference data transmission unit 513 by executing a program stored in the storage 550.
- a storage area for a software table 551 is secured in the storage 550 .
- the software table 551 stores a plurality of pieces of software with different product numbers applicable to the component 200 associated with the hardware product number of the component 200 .
- the software table 551 associates and stores the hardware product number of the component, the substance of the software, and the software product number of the software.
- FIG. 9 is a diagram illustrating an example of a software table according to the first embodiment;
- the software table 551 stores hardware product numbers indicating image display components, software product numbers indicating image display component applications, and software entities in association with each other. Further, in the example shown in FIG. 9, the software table 551 stores hardware product numbers indicating machine guidance components, software product numbers indicating machine guidance component applications, and software entities in association with each other.
- the software recording unit 511 receives input from the server administrator or software developer of the actual software, the product number of the software, and the hardware product number of the component 200 to which the software is applied, and records this in the software table 551 .
- the administrator or developer operates the developer terminal 700 to send the software entity, the software product number, and the hardware product number of the component 200 to which the software is applied to the software management server 500 .
- the software recording unit 511 accepts input of product number information indicating hardware product numbers of a plurality of components 200 for realizing predetermined functions in cooperation from the developer terminal 700 , the received product number information is stored in the storage 550 . Record.
- the difference data generation unit 512 generates difference data between the software newly recorded in the software table 551 and the software with another product number applied to the hardware to which the software is applied.
- the difference data transmission unit 513 associates the difference data generated by the difference data generation unit 512 with the software product number to which the difference data is applied, and transmits them to the component management server 300 .
- the difference data transmission unit 513 also transmits the product number information to the component management server 300 .
- FIG. 10 is a sequence diagram showing a software update method of the component 200 in the software update system 1 according to the first embodiment.
- the developer operates the developer terminal 700, associates the substance of the software, the product number of the software, and the hardware product number of the component 200 to which the software is applied, and updates the software management server. 500.
- the software recording unit 511 of the software management server 500 records the received software substance, software product number, and hardware product number in the software table 551 in association with each other (step S1).
- the software product number received by the software recording unit 511 is the update product number, which is the software product number after the update.
- the software recording unit 511 records the received product number information in the storage 550 .
- the difference data generation unit 512 acquires the actual software and the software product number associated with the hardware product number received in step S1 from the software table 551 (step S2).
- the difference data generation unit 512 generates difference data for each software product number by calculating the difference between the software received in step S1 and each software acquired in step S2 (step S3). Note that if the software stored in the component 200 is always the latest, difference data may be generated only for the latest software among the software acquired in step S2.
- the difference data transmission unit 513 associates the difference data generated in step S3 with the target product number, which is the hardware product number received in step S1, the update product number received in step S1, and the software product number acquired in step S2, to obtain the component It is transmitted to the management server 300 (step S4). If the product number information has been received from the developer terminal 700 in step S1, the difference data transmission unit 513 also transmits the product number information to the component management server 300.
- the difference data receiving unit 311 of the component management server 300 receives the difference data, software product number, and hardware product number from the software management server 500 (step S4).
- the update target identifying unit 312 refers to the component table 351 and identifies the work machine 100 that includes the component 200 associated with the received hardware product number (step S5). Note that a plurality of work machines 100 having the component 200 associated with the hardware product number may be identified.
- the product number confirmation unit 313 transmits a confirmation request for the software product number of the component to be updated to the gateway function controller 201 of the specified work machine 100 (step S6). That is, the software product number confirmation request includes the hardware product number of the component 200 to be updated.
- the gateway function controller 201 receives a software product number confirmation request from the component management server 300 (step S6).
- the gateway function controller 201 executes product number confirmation processing for the component 200, and transmits the identified software product number to the component management server 300 (step S7).
- the software product number is written as a constant in the substance of the software, and is specified, for example, by executing a product number confirmation command that the software has. The details of the product number confirmation processing by the gateway function controller 201 will be described later.
- the product number confirmation unit 313 of the component management server 300 receives the software product number from the work machine 100 (step S7). If the software product number received in step S7 matches the target product number received in step S4, the update instruction transmission unit 314 instructs the gateway function controller 201 of the work machine 100 to update the software of the component to be updated. and the package file used for updating (step S8).
- the software update instruction includes the difference data received in step S4, the gateway script to be executed by the gateway function controller 201, and the component script to be executed by the component 200 to be updated.
- the gateway script contains the hardware part number of the component to which the difference data is applied.
- step S4 if the data received in step S4 contains product number information indicating the hardware product numbers of the plurality of components 200, the component management server 300 updates the update instruction transmission unit 314 with the difference between the plurality of components 200 indicated by the product number information.
- the gateway script and the component script a package file is generated that includes hardware product number information of each component 200 required to implement the function and update order information indicating the update order of the component 200 .
- the gateway function controller 201 receives the software update instruction and package file from the component management server 300 (step S8). Upon completion of receiving the package file, the gateway function controller 201 executes software update processing for the component 200 according to the gateway script included in the package file (step S9).
- the gateway script may describe that after the work machine 100 is turned off, the individual component 200 is woken up by a function such as Wake-on-LAN to execute the software update process. This is to prevent component 200 from malfunctioning due to an update while work machine 100 is in operation. Further, after the key is turned on, when the operation of the work machine 100 is locked by a lock lever (not shown) of the work machine 100 (a lever that cuts off the flow paths of all the hydraulic circuits for the work machine, swing, and travel), software update is performed. Execution of processing may be described. Details of the software update processing by the gateway function controller 201 will be described later.
- a product number confirmation request is sent (step S10).
- the predetermined time is a time sufficiently longer than the required calculation time for applying the difference data to the software.
- gateway function controller 201 of work machine 100 transmits a completion notification to component management server 300 after completion of updating, and part number confirmation unit 313 updates the gateway function controller of work machine 100 that has transmitted the completion notification. 201, a confirmation request for the software product number of the component to be updated may be transmitted.
- the gateway function controller 201 receives a software product number confirmation request from the component management server 300 .
- the gateway function controller 201 executes product number confirmation processing for the component 200 and transmits the identified software product number to the component management server 300 (step S11).
- the software product number is written as a constant in the substance of the software, so if the software update process in step S9 is normally completed, the software product number is also updated.
- the product number confirmation unit 313 of the component management server 300 receives the software product number from the work machine 100 (step S11). If the software product number received in step S11 and the update product number received in step S4 match, the table updating unit 315 updates the software product number of the component 200 stored in the component table 351 to the software product number received in step S11. (Step S12).
- the sequence diagram shown in FIG. 10 shows an example of processing, and does not prevent software from being updated by other processing.
- the software update system 1 according to another embodiment does not have to perform the processes of steps S6, S7, S10, S11, and S12.
- the software product number may be stored in a main memory or storage (not shown) of the component 200 .
- the gateway function controller 201 transmits a product number confirmation request of the component 200 to the component 200 in steps S7 and S11, and the component 200 acquires the software product number stored in the main memory or storage and sends it to the gateway function controller 201. You may send.
- FIG. 11 is a flow chart showing product number confirmation processing of the gateway function controller 201 according to the first embodiment.
- the receiving unit 2211 determines whether the component 200 whose software product number is to be confirmed, ie, the component 200 related to the hardware product number included in the confirmation request, is connected to the second board 220 (step S31). If the confirmation target component 200 is connected to the second board 220 (step S31: YES), the access unit 2214 acquires the software product number from the confirmation target component 200 via the second network N2 (step S32). ).
- the output unit 2212 outputs a software product number check request to the first board 210 (step S33).
- the input unit 2111 of the first substrate 210 receives the software product number confirmation request from the second substrate 220 (step S34).
- the access unit 2112 acquires the software product number from the confirmation target component 200 via the first network N1 (step S35).
- the output unit 2114 outputs the acquired software product number to the second board 220 (step S36).
- the input unit 2213 of the second board 220 receives the software product number from the confirmation target component 200 from the first board 210 (step S37).
- the transmission unit 2216 of the second board 220 transmits the software product number from the confirmation target component 200 identified in step S32 or step S37 to the component management server 300 (step S38).
- the gateway function controller 201 can notify the software product number of the component 200 in response to the confirmation request from the component management server 300 .
- the gateway function controller 201 does not have to perform the product number confirmation process.
- the software product number may be stored in a main memory or storage (not shown) of the component 200 .
- the second board 220 transmits a product number confirmation request of the component 200 to the component 200 in steps S32 and S37, and the component 200 obtains the software product number stored in the main memory or storage and transmits it to the second board. You may
- the receiving unit 2211 of the second substrate 220 of the gateway function controller 201 receives the software update instruction and the package file from the component management server 300 in step S8. Upon completion of receiving the package file, the receiving unit 2211 records the received package file in the second storage 225 .
- the second storage 225 is an example of a storage unit that stores package files.
- the gateway function controller 201 executes the software update process by executing the gateway script included in the package file.
- FIG. 12 is a flowchart showing single software update processing by the gateway function controller 201 according to the first embodiment.
- the example shown in the flowchart shown in FIG. 12 represents the procedure when the package file contains only data used for updating one component 200 .
- the receiving unit 2211 refers to the connection information to connect the component 200 to the second board 220 with reference to the connection information in order to communicate with the component 200 to be updated of the software, that is, the component 200 related to the hardware product number described in the gateway script. It is determined whether it is connected (step S61). If the update target component 200 is connected to the second board 220 (step S61: YES), the access unit 2214 acquires the current software from the update target component 200 via the second network N2 (step S62).
- the output unit 2212 outputs the software to the first board 210. is output (step S63).
- the input unit 2111 of the first substrate 210 receives the software acquisition instruction from the second substrate 220 (step S64).
- the updating unit 2113 determines whether or not the component 200 to be updated is the first board 210 itself (step S65). If the component 200 to be updated is the first board 210 itself (step S65: YES), the updating unit 2113 acquires main software from the first storage 215 (step S66).
- the access unit 2112 acquires the current software from the update target component 200 via the first network N1 (step S67). .
- the component 200 may divide the current software information into multiple times and transmit it to the first board. As a result, even in the component 200 with small computational resources that cannot transmit the current software to the first board in one transmission, the information of the current software can be transmitted to the first board by dividing it into multiple transmissions. can be sent.
- the output unit 2114 outputs the software acquired in step S66 or step S67 to the second substrate 220 (step S68).
- the input unit 2213 of the second board 220 receives the software of the component 200 to be updated from the first board 210 (step S69).
- the software generation unit 2215 generates updated software by applying the difference data included in the package file received from the component management server 300 to the software acquired in step S62 or step S69 according to the gateway script. (Step S70).
- the software generation unit 2215 records the generated software in the backup software storage unit in association with the hardware product number of the component 200 (step S71).
- the software generation unit 2215 refers to the connection information and determines whether the update target component 200 is connected to the second board 220 (step S72).
- step S72 If the update target component 200 is connected to the second board 220 (step S72: YES), the access unit 2214 transfers the software and package generated in step S70 to the update target component 200 via the second network N2. Output the component script contained in the file. As a result, the component 200 rewrites the stored software with the software generated in step S70 by executing the component script (step S73).
- the output unit 2212 outputs the software to the first board 210. is output (step S74).
- the software update instruction includes the software generated in step S70 and the component script included in the update instruction.
- the input unit 2111 of the first substrate 210 receives the software update instruction from the second substrate 220 (step S75).
- the updating unit 2113 determines whether or not the update target component 200 is the first board 210 itself (step S76).
- step S76 If the component 200 to be updated is the first board 210 itself (step S76: YES), the updating unit 2113 rewrites the backup software stored in the first storage 215 with the software included in the update instruction (step S77). . When the rewriting of the backup software is completed, the updating unit 2113 rewrites the main software stored in the first storage 215 with the software included in the update instruction (step S78).
- step S76 if the component 200 to be updated is not the first board 210 itself (step S76: NO), the access unit 2112 transfers the software and component script included in the package file to the component 200 to be updated via the first network N1. Output. As a result, the component 200 rewrites the stored software with the software included in the package file by executing the component script (step S79). This allows the gateway function controller 201 to update the software of the component 200 based on the difference data.
- FIG. 13 is a flow chart showing multiple software update processes by the gateway function controller 201 according to the first embodiment.
- the example shown in the flowchart shown in FIG. 13 represents the procedure when data used for updating a plurality of components 200 realizing functions related to each other is included in the package file.
- the receiving unit 2211 determines whether the hardware part number of each component 200 to be updated satisfies the update conditions based on the hardware part number information included in the package file (step S81).
- the receiving unit 2211 may determine the update condition based on the hardware product number of the component 200 acquired in step S7, or may receive the hardware product number from the component 200 again to determine the update condition. .
- the receiving unit 2211 compares, for example, the hardware product number information included in the package file with the hardware product number of each component 200 to be updated, and determines that the update conditions are satisfied when they match.
- the receiving unit 2211 deletes the received package file (step S82), and deletes all components related to the update instruction. Do not update 200. For example, even if only one of the three components 200 to be updated does not satisfy the update conditions and the remaining two satisfy the update conditions, the gateway function controller 201 does not update all the three components 200 . .
- step S81 determines that all the components 200 satisfy the update condition. If all the components 200 satisfy the update condition (step S81: YES), the receiving unit 2211 determines that some of the components 200 indicated by the update order information included in the package file have not been updated. It is determined whether or not (step S83). For example, since the information of the updated component 200 is recorded in the second storage 225 in step S87, which will be described later, the receiving unit 2211 selects the updated component 200 as the updated component 200 among the plurality of components 200 indicated by the update order information. If there is anything that is not recorded, it is determined that there is a component 200 that has not been updated.
- step S83 determines the component 200 to be updated as the component 200 with the earliest update order (step S84). Then, for the component 200 to be updated, the processing from step S61 to step S70 shown in FIG. 12 is executed to update the software (step S85).
- the access unit 2214 determines whether the update of the update target component 200 has been completed normally (step S86). For example, the access unit 2214 determines whether or not a notification indicating abnormal termination or suspension of updating has been received from the component 200 .
- the access unit 2214 is an example of a detection unit that detects interruption of update of the component 200 . If the update of the component 200 to be updated has not been completed normally (step S86: NO), the gateway function controller 201 interrupts the update process, and updates the component 200 whose update order is later than the component 200 to be updated determined in step S84. Terminate the process without updating the
- step S86 YES
- step S86: YES the completion of the update of the component 200 determined in step S84 is recorded in the second storage 225 (step S87).
- step S83 the receiving unit 2211 deletes the package file recorded in the second storage 225 (step S82), and ends the update process. do.
- the gateway function controller 201 may perform update processing of multiple components 200 by parallel processing without depending on update order information.
- Perimeter monitoring component 205 of pre-update work machine 100 has a function of generating a bird's-eye view of work machine 100 from above based on an image captured by camera 206 .
- perimeter monitoring component 205 can realize a function of detecting an obstacle existing within a predetermined distance from work machine 100 by updating software.
- the monitor component 202 can realize a function of marking the position of the detected obstacle on the bird's-eye view image by updating the software.
- the controller 203 limits the operation of the hydraulic equipment (eg, the traveling motor 112, the turning motor 124, the boom cylinder 131C, the arm cylinder 132C, the bucket cylinder 133C, etc.) by updating the software when an obstacle is detected.
- the software of the monitor component 202 and the control controller 203 are software related to the software of the perimeter monitoring component 205 .
- the software of the perimeter monitoring component 205 is an example of first software
- the software of the monitor component 202 and the controller 203 is an example of second software.
- the component management server 300 receives the software of the peripheral monitoring component 205, the monitor component 202, and the control controller 203 from the software management server 500, and generates difference data for each. Then, the component management server 300 generates a package file including each difference data, hardware product number information of each component 200, and update order information. At this time, the update order indicated by the update order information is, for example, the order of the peripheral monitoring component 205, the controller 203, and the monitor component 202.
- the gateway function controller 201 of the work machine 100 receives the package file from the component management server 300. If communication is interrupted for some reason before the reception of the package file is completed, work machine 100 does not update the software. Therefore, for example, when the work machine 100 is started while receiving the package file and moves out of the communication range, it is possible to prevent only part of the component 200 from being updated and part of the component 200 to remain in an old state.
- the component 200 when the reception of the package file is completed, if the hardware product number of each component 200 does not satisfy the update condition indicated by the hardware product number information, the component 200 is not updated. This can prevent some of the components 200 from being updated and only some of the components 200 from being updated.
- the gateway function controller 201 updates the components 200 in the order indicated by the update order information.
- the update process may be interrupted for some reason during the update.
- the gateway function controller 201 interrupts the updating work and causes each component 200 to operate.
- the information of the component 200 whose update has been completed is recorded in the second storage 225 in step S86. Therefore, by performing the process from step S81 again, the receiving unit 2211 can identify the component 200 whose update has been interrupted in steps S83 and S84 and restart the update process.
- the reception unit 2211 is an example of a determination unit that determines the component 200 for which the update has not been completed when interruption of update is detected. Also, since the package file has already been recorded in the second storage 225, even if the user has moved out of the communication range when the update is resumed, the update process can be resumed.
- the software update system 1 receives data including the first software used for updating the first component and the second software used for updating the second component from the server, and stores the data. updating the first component and the second component based on the first software and the second software after being stored in the copy; As a result, even if the updating of the plurality of components 200 stops halfway, the software update system 1 can resume the updating, and realize the function realized by the linkage of the plurality of components 200. can.
- the software update system 1 according to the first embodiment when the function realized by the second software uses the calculation result by the function realized by the first software, the update is not performed by the first software. It is possible to prevent the function of the second software from becoming unusable.
- the gateway function controller 201 generates software for all the components 200 of the working machine 100 on the second board 220 mounted on the working machine 100 .
- the component 200 autonomously generates new software from the difference data and autonomously updates its own software. You can go to
- the component management server 300 may send to the gateway function controller 201 a package file containing the new software used for updating instead of the difference data. In this case, for example, in the sequence diagram shown in FIG. The target product number is associated and transmitted to the component management server 300 .
- the gateway function controller 201 associates the new software to be used for the update received from the component management server 300 with the hardware product number of the component 200, and stores the standby software. Record in the department.
- the update instruction includes new software used for updating, a gateway script to be executed by the gateway function controller 201, and a component script to be executed by the component 200 to be updated.
- the gateway script describes the procedure for processing the new software.
- the gateway function controller 201 includes a first board 210 and a second board 220 that are physically separated.
- the gateway function controller 201 according to another embodiment may be mounted on one substrate.
- the gateway function controller 201 according to another embodiment may have two processors on one board.
- gateway function controller 201 may comprise more than two boards.
- the roles of the plurality of substrates included in the gateway function controller 201 may be different from those in the above embodiments.
- the software management server 500 and the component management server 300 may be realized by one device instead of separate units.
- the software update system can increase the certainty of updating multiple components in order to implement functions realized by interlocking multiple components.
- receiving section 2212 output section 2213... input section 2214... accessing section 2215... software generating section 2216... transmitting section 223... second main memory 225... second storage 2251... Standby system software storage unit 227...Second interface 300
- Component management server 311 ...Differential data reception unit 312
- Update target identification unit 313 ...Product number confirmation unit 314
- Update instruction transmission unit 315 ...Table update unit 500
- Software management server 511 ... Software recording unit 512
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Abstract
Description
本願は、2021年8月31日に日本に出願された特願2021-141277号について優先権を主張し、その内容をここに援用する。
特許文献1には、作業機械のコンポーネントのソフトウェアを更新する技術が開示されている。
図1は、第1の実施形態に係るソフトウェア更新システム1の構成図である。
ソフトウェア更新システム1は、複数の作業機械100が備えるコンポーネント200のソフトウェアの品番を管理する。ソフトウェア更新システム1は、複数の作業機械100と、コンポーネント管理サーバ300と、ソフトウェア管理サーバ500と、開発者端末700とを備える。ソフトウェアとは、ハードウェアの機能の実現のために用いられるデータである。ソフトウェアは、プログラムおよび設定データを含み得る。なお、ソフトウェアの品番とは、ソフトウェアを特定するためのユニークな識別子である。ソフトウェアの品番は、例えば、複数の数字、又はアルファベットの組み合わせによって表現される。
図2は、作業機械100の外観を示す斜視図である。
作業機械である作業機械100は、油圧により作動する作業機130と、作業機130を支持する旋回体120と、旋回体120を支持する走行体110とを備える。
旋回体120は、走行体110に旋回中心回りに旋回可能に支持される。
作業機130は、油圧により駆動する。作業機130は、旋回体120の前部に上下方向に駆動可能に支持される。運転室140は、オペレータが搭乗し、作業機械100の操作を行うためのスペースである。運転室140は、旋回体120の左前部に設けられる。
ここで、旋回体120のうち作業機130が取り付けられる部分を前部という。また、旋回体120について、前部を基準に、反対側の部分を後部、左側の部分を左部、右側の部分を右部という。
旋回体120は、エンジン121、油圧ポンプ122、コントロールバルブ123、旋回モータ124、燃料噴射装置125を備える。
エンジン121は、油圧ポンプ122を駆動する原動機である。
油圧ポンプ122は、エンジン121により駆動される可変容量ポンプである。油圧ポンプ122は、コントロールバルブ123を介して各アクチュエータ(ブームシリンダ131C、アームシリンダ132C、バケットシリンダ133C、走行モータ112、および旋回モータ124)に作動油を供給する。
コントロールバルブ123は、油圧ポンプ122から供給される作動油の流量を制御する。
旋回モータ124は、コントロールバルブ123を介して油圧ポンプ122から供給される作動油によって駆動し、旋回体120を旋回させる。
燃料噴射装置125は、燃料をエンジン121に噴射する。
具体的には、旋回体120には、旋回体120の周囲のうち左後方範囲Raを撮像する左後方カメラ206A、旋回体120の周囲のうち後方範囲Rbを撮像する後方カメラ206B、旋回体120の周囲のうち右後方範囲Rcを撮像する右後方カメラ206C、旋回体120の周囲の右前方範囲Rdを撮像する右前方カメラ206Dが設けられる。なお、複数のカメラ206の撮像範囲の一部は、互いに重複していてもよい。
複数のカメラ206の撮像範囲は、作業機械100の全周のうち、運転室140から視認可能な左前方範囲Reを除く範囲をカバーする。なお、第1の実施形態に係るカメラ206は、旋回体120の左後方、後方、右後方、および右前方を撮像するが、他の実施形態においてはこれに限られない。例えば、他の実施形態に係るカメラ206の数および撮像範囲は、図2、図3に示す例と異なっていてよい。
図2に示すように、作業機130は、ブーム131、アーム132、バケット133、ブームシリンダ131C、アームシリンダ132C、およびバケットシリンダ133Cを備える。
アーム132は、ブーム131とバケット133とを連結する。アーム132の基端部は、ブーム131の先端部にアームピンを介して取り付けられる。
バケット133は、土砂などを掘削するための刃と掘削した土砂を収容するための収容部とを備える。バケット133の基端部は、アーム132の先端部にバケットピンを介して取り付けられる。
アームシリンダ132Cは、アーム132を駆動するための油圧シリンダである。アームシリンダ132Cの基端部は、ブーム131に取り付けられる。アームシリンダ132Cの先端部は、アーム132に取り付けられる。
バケットシリンダ133Cは、バケット133を駆動するための油圧シリンダである。バケットシリンダ133Cの基端部は、アーム132に取り付けられる。バケットシリンダ133Cの先端部は、バケット133に接続されるリンク部材に取り付けられる。
図4は、第1の実施形態に係る運転室140の内部の構成を示す図である。
運転室140内には、運転席142、操作装置143およびモニタコンポーネント202が設けられる。
図5は、第1の実施形態に係る作業機械100の制御系のハードウェア構成を示す概略ブロック図である。
作業機械100は、ゲートウェイ機能コントローラ201、モニタコンポーネント202、制御コントローラ203、エンジンコントローラ204、周辺監視コンポーネント205を備える。ゲートウェイ機能コントローラ201、モニタコンポーネント202、制御コントローラ203、エンジンコントローラ204、周辺監視コンポーネント205およびカメラ206は、互いに車内ネットワークを介して接続される。具体的には、ゲートウェイ機能コントローラ201、モニタコンポーネント202、制御コントローラ203およびエンジンコントローラ204は、CAN(Controller Area Network)などの第1ネットワークN1を介して接続され、ゲートウェイ機能コントローラ201、カメラ206および周辺監視コンポーネント205は、イーサネット(登録商標)などの第2ネットワークN2を介して接続される。
モニタコンポーネント202は、運転室140に設けられ、ディスプレイの表示を制御する。
制御コントローラ203は、作業機130の動作を制御する油圧機器に関連する各種データを図示しないセンサにより取得し、操作装置143の操作に従って油圧機器を制御するための制御信号を出力する。つまり、制御コントローラ203は、ブームシリンダ131C、アームシリンダ132C、バケットシリンダ133C、走行モータ112、旋回モータ124などの駆動を制御する。
エンジンコントローラ204は、エンジン121に関連する各種データを図示しないセンサにより取得し、燃料噴射装置125に燃料噴射量を指示することで、エンジン121を制御する。
周辺監視コンポーネント205は、カメラ206が撮像した画像に基づいて俯瞰画像を生成し、モニタコンポーネント202に俯瞰画像を表示させる。
図6は、第1の実施形態に係るゲートウェイ機能コントローラ201の構成を示すブロック図である。
ゲートウェイ機能コントローラ201は、物理的に分かれた第1基板210と第2基板220とを備える。
なお、第2基板220が有する計算資源は、少なくとも1つのコンポーネント200が有する計算資源より大きい。また、第2基板220が有する計算資源は、第1基板210が有する計算資源より大きいことが好ましい。計算資源とは、コンピュータにおける計算において使用される資源である。計算資源とは、コンピュータが備える計算時間または記憶容量を提供する資源である。計算資源の例としては、CPU、メインメモリ、ストレージなどが挙げられる。なお、第2メインメモリ223の容量は、第1メインメモリ213の容量より大きいのが好ましい。また、第2ストレージ225の容量は、第1ストレージ215の容量より大きいのが好ましい。
図7は、第1の実施形態に係るコンポーネント管理サーバ300の構成を示すブロック図である。
コンポーネント管理サーバ300は、プロセッサ310、メインメモリ330、ストレージ350、インタフェース370を備える。プロセッサ310は、ストレージ350からプログラムを取得してメインメモリ330に展開し、当該プログラムに従って所定の処理を実行する。インタフェース370には、広域通信網を介した通信機能を有する図示しない通信装置が接続され、当該通信装置を介してゲートウェイ機能コントローラ201の第2基板220、およびソフトウェア管理サーバ500と通信可能に接続される。
図8は、第1の実施形態に係るソフトウェア管理サーバ500の構成を示すブロック図である。
ソフトウェア管理サーバ500は、プロセッサ510、メインメモリ530、ストレージ550、インタフェース570を備える。プロセッサ510は、ストレージ550からプログラムを取得してメインメモリ530に展開し、当該プログラムに従って所定の処理を実行する。インタフェース570は、コンポーネント管理サーバ300と通信可能に接続される。
図10は、第1の実施形態に係るソフトウェア更新システム1におけるコンポーネント200のソフトウェアの更新方法を示すシーケンス図である。
開発者は、コンポーネント200のソフトウェアを更新すると、開発者端末700を操作し、当該ソフトウェアの実体、当該ソフトウェアの品番、および当該ソフトウェアの適用対象のコンポーネント200のハードウェア品番とを関連付けてソフトウェア管理サーバ500に送信する。ソフトウェア管理サーバ500のソフトウェア記録部511は、受信したソフトウェアの実体、ソフトウェア品番、およびハードウェア品番を、関連付けてソフトウェアテーブル551に記録する(ステップS1)。なお、ソフトウェア記録部511が受信したソフトウェア品番は、更新後のソフトウェア品番である更新品番である。このとき、開発者端末700から品番情報を受信した場合、ソフトウェア記録部511は、受信した品番情報をストレージ550に記録する。
ここで、ソフトウェアの更新処理におけるゲートウェイ機能コントローラ201の動作について説明する。ゲートウェイ機能コントローラ201の第2基板220の受信部2211が、ステップS6またはステップS10にてコンポーネント管理サーバ300からソフトウェア品番の確認要求を受信すると、ゲートウェイ機能コントローラ201は品番確認処理を実行する。
受信部2211は、ソフトウェア品番の確認対象のコンポーネント200、すなわち確認要求に含まれるハードウェア品番に係るコンポーネント200が、第2基板220に接続されているかを判定する(ステップS31)。確認対象のコンポーネント200が第2基板220に接続されている場合(ステップS31:YES)、アクセス部2214は、第2ネットワークN2を介して、確認対象のコンポーネント200からソフトウェア品番を取得する(ステップS32)。
第1基板210の入力部2111が第2基板220からソフトウェア品番の確認要求を受信する(ステップS34)。次に、アクセス部2112は、第1ネットワークN1を介して、確認対象のコンポーネント200からソフトウェア品番を取得する(ステップS35)。出力部2114は、取得したソフトウェア品番を第2基板220に出力する(ステップS36)。
第2基板220の入力部2213は、第1基板210から確認対象のコンポーネント200からのソフトウェア品番を受信する(ステップS37)。
これにより、ゲートウェイ機能コントローラ201は、コンポーネント管理サーバ300の確認要求に応答してコンポーネント200のソフトウェア品番を通知することができる。
ゲートウェイ機能コントローラ201の第2基板220の受信部2211が、ステップS8にてコンポーネント管理サーバ300からソフトウェアの更新指示とパッケージファイルとを受信する。受信部2211は、パッケージファイルの受信が完了すると、受信したパッケージファイルを第2ストレージ225に記録する。第2ストレージ225は、パッケージファイルを記憶する記憶部の一例である。そして、ゲートウェイ機能コントローラ201はパッケージファイルに含まれるゲートウェイスクリプトを実行することで、ソフトウェア更新処理を実行する。
第1基板210の入力部2111は、第2基板220からソフトウェアの取得指示を受信する(ステップS64)。更新部2113は、更新対象のコンポーネント200が第1基板210自身であるか否かを判定する(ステップS65)。更新対象のコンポーネント200が第1基板210自身である場合(ステップS65:YES)、更新部2113は、第1ストレージ215から主系ソフトウェアを取得する(ステップS66)。他方、更新対象のコンポーネント200が第1基板210自身でない場合(ステップS65:NO)、アクセス部2112は、第1ネットワークN1を介して更新対象のコンポーネント200から現行のソフトウェアを取得する(ステップS67)。なお、コンポーネント200は、現行のソフトウェアの情報を複数回に分けて第1基板に送信するようにしてもよい。これにより、一度の送信で現行のソフトウェアを、第1基板に送信することができない計算資源の小さいコンポーネント200においても、複数回に分けて送信することによって、現行のソフトウェアの情報を第1基板に送信することができる。
出力部2114は、ステップS66またはステップS67で取得したソフトウェアを、第2基板220に出力する(ステップS68)。
第2基板220の入力部2213は、第1基板210から更新対象のコンポーネント200のソフトウェアを受信する(ステップS69)。
第1基板210の入力部2111は、第2基板220からソフトウェアの更新指示を受信する(ステップS75)。更新部2113は、更新対象のコンポーネント200が第1基板210自身であるか否かを判定する(ステップS76)。更新対象のコンポーネント200が第1基板210自身である場合(ステップS76:YES)、更新部2113は、第1ストレージ215が記憶する予備系ソフトウェアを、更新指示に含まれるソフトウェアに書き換える(ステップS77)。予備系ソフトウェアの書き換えが完了すると、更新部2113は、第1ストレージ215が記憶する主系ソフトウェアを、更新指示に含まれるソフトウェアに書き換える(ステップS78)。
これにより、ゲートウェイ機能コントローラ201は、差分データに基づいてコンポーネント200のソフトウェアを更新することができる。
このように、第1の実施形態に係るソフトウェア更新システム1は、第1コンポーネントの更新に用いる第1ソフトウェアと、第2コンポーネントの更新に用いる第2ソフトウェアとを含むデータをサーバから受信し、記憶部に記憶された後に、第1ソフトウェアおよび第2ソフトウェアに基づいて、第1コンポーネントと第2コンポーネントの更新を行う。これにより、ソフトウェア更新システム1は、複数のコンポーネント200の更新が途中で止まったとしても、当該更新を再開することができ、複数のコンポーネント200が連動することで実現される機能を実現させることができる。特に、第1の実施形態に係るソフトウェア更新システム1は、第2ソフトウェアによって実現される機能が、第1ソフトウェアによって実現される機能による計算結果を用いる場合に、第1ソフトウェアによる更新がなされずに第2ソフトウェアの機能が利用できなくなることを防ぐことができる。
以上、図面を参照して一実施形態について詳しく説明してきたが、具体的な構成は上述のものに限られることはなく、様々な設計変更等をすることが可能である。すなわち、他の実施形態においては、上述の処理の順序が適宜変更されてもよい。また、一部の処理が並列に実行されてもよい。
Claims (10)
- 作業機械に備えられる複数のコンポーネントを更新するソフトウェア更新システムであって、
前記複数のコンポーネントの1つである第1コンポーネントの更新に用いる第1ソフトウェアと、前記複数のコンポーネントの1つである第2コンポーネントの更新に用いるソフトウェアであって、前記第1ソフトウェアと関連する機能を実現するための第2ソフトウェアとを含むデータをサーバから受信する受信部と、
受信された前記第1ソフトウェアおよび前記第2ソフトウェアを記憶する記憶部と、
前記記憶部に前記第1ソフトウェアおよび前記第2ソフトウェアが記憶された後に、前記第1ソフトウェアおよび前記第2ソフトウェアに基づいて、前記第1コンポーネントと前記第2コンポーネントの更新を行う更新部と、
を備えるソフトウェア更新システム。 - 前記第1コンポーネントは、前記作業機械に備えられる撮像装置を用いた周辺監視を行う周辺監視コンポーネントを含み、
前記第2コンポーネントは、前記作業機械に備えられるモニタの表示制御を行うモニタコンポーネントと、前記作業機械に備えられる油圧機器の油圧制御を行う油圧コンポーネントとを含み、
前記第1ソフトウェアは、前記撮像装置を用いた前記作業機械の周辺の障害物を検知する機能を実現するためのソフトウェアを含み、
前記第2ソフトウェアは、前記第1ソフトウェアによる障害物の検知に関する表示を前記モニタに表示するための前記モニタコンポーネントのソフトウェアと、前記第1ソフトウェアによる障害物の検知時の前記油圧機器の出力を制御するための前記油圧コンポーネントのソフトウェアとを含み、
前記更新部は、前記第1ソフトウェアと前記第2ソフトウェアに基づき、前記周辺監視コンポーネント、前記モニタコンポーネント、及び前記油圧コンポーネントの障害物検知機能に関連する機能を有効にする
請求項1に記載のソフトウェア更新システム。 - 前記データは前記複数のコンポーネントの更新順を示す更新順情報を含み、
前記更新部は、前記更新順情報が示す順に、前記複数のコンポーネントの更新を行う 請求項1または請求項2に記載のソフトウェア更新システム。 - 前記更新部は、前記複数のコンポーネントのうち更新に失敗したコンポーネントがある場合に、前記更新順情報において当該コンポーネント以降に更新することを示すコンポーネントの更新を行わない
請求項3に記載のソフトウェア更新システム。 - 前記更新部は、前記第1ソフトウェアによる前記第1コンポーネントの更新が完了した後に、前記第2ソフトウェアによる前記第2コンポーネントの更新を行う
請求項1から請求項4の何れか1項に記載のソフトウェア更新システム。 - 前記更新部は、前記複数のコンポーネントのうち前記モニタコンポーネントを最後に更新する
請求項2に記載のソフトウェア更新システム。 - 前記第1ソフトウェアおよび前記第2ソフトウェアに基づく前記第1コンポーネントおよび前記第1コンポーネントの更新の中断を検知する検知部と、
前記更新の中断を検知した場合、更新が完了していない前記第1のコンポーネントおよび前記第2のコンポーネントのうちコンポーネントを判定する判定部と、
を備え、
前記更新部は、前記判定部によって更新が完了していないと判定された前記コンポーネントの更新が再開可能になった場合、前記記憶部に記憶した前記第1ソフトウェアまたは前記第2ソフトウェアに基づいて、前記判定部によって更新が完了していないと判定された前記コンポーネントの更新を行う
請求項1から請求項6の何れか1項に記載のソフトウェア更新システム。 - 前記データは、前記第1ソフトウェアおよび前記第2ソフトウェアによる更新が可能な前記第1コンポーネント及び前記第2コンポーネントの品番の条件を示す品番情報を含み、
前記更新部は、前記第1コンポーネント及び前記第2コンポーネントの品番が、前記品番情報が示す条件を満たす場合に、前記第1コンポーネント及び前記第2コンポーネント更新を行う
請求項1から請求項7の何れか1項に記載のソフトウェア更新システム。 - 車体と、
前記車体に取り付けられた作業機と、
第1コンポーネントおよび第2コンポーネントを含む複数のコンポーネントと、
請求項1から請求項8の少なくとも何れか1項に記載のソフトウェア更新システムと を備える作業機械。 - 作業機械に備えられる複数のコンポーネントを更新するソフトウェア更新方法であって、
コンピュータが、前記複数のコンポーネントの1つである第1コンポーネントの更新に用いる第1ソフトウェアと、前記複数のコンポーネントの1つである第2コンポーネントの更新に用いるソフトウェアであって、前記第1ソフトウェアと関連する機能を実現するための第2ソフトウェアとを含むデータをサーバから受信するステップと、
前記コンピュータが、受信された前記第1ソフトウェアおよび前記第2ソフトウェアを記憶するステップと、
前記第1ソフトウェアおよび前記第2ソフトウェアが記憶された後に、前記コンピュータが、前記第1ソフトウェアおよび前記第2ソフトウェアに基づいて、前記第1コンポーネントと前記第2コンポーネントの更新を行うステップと、
を備えるソフトウェア更新方法。
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- 2022-08-26 DE DE112022002828.9T patent/DE112022002828T5/de active Pending
- 2022-08-26 WO PCT/JP2022/032230 patent/WO2023032850A1/ja active Application Filing
- 2022-08-26 KR KR1020247001902A patent/KR20240022634A/ko unknown
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2004118586A (ja) * | 2002-09-26 | 2004-04-15 | Murata Mach Ltd | 管理装置およびそのプログラム |
JP2004194298A (ja) * | 2002-11-18 | 2004-07-08 | Ricoh Co Ltd | 画像形成装置、プログラム更新方法 |
JP2006011647A (ja) * | 2004-06-23 | 2006-01-12 | Fujitsu Ten Ltd | ソフトウェア管理装置 |
JP2016178499A (ja) * | 2015-03-20 | 2016-10-06 | シャープ株式会社 | 画像処理装置及び情報処理装置 |
JP2021111154A (ja) * | 2020-01-10 | 2021-08-02 | 日立建機株式会社 | 作業機械 |
Also Published As
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DE112022002828T5 (de) | 2024-03-14 |
KR20240022634A (ko) | 2024-02-20 |
JP2023034836A (ja) | 2023-03-13 |
CN117882049A (zh) | 2024-04-12 |
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