Working machine and management system

Abstract

Working machine (1) with: an electronic device (21A, 21B, 22, 31); a first signal line (30) to which the electronic device (21A, 21B, 22, 31) is connected, wherein the first signal line (30) is a wired vehicle signal line; a storage unit (20M) which stores in advance at least identification information for identifying the electronic device (21A, 21B, 22, 31) contained in the working machine (1); a communication unit (34) that communicates wirelessly to outside the working machine (1); and a processing unit (20C) that determines whether the identification information acquired by the electronic device (21A, 21B, 22, 31) via the first signal line (30) differs from the identification information stored in the storage unit (20M), wherein If the processing unit (20C) determines that the identification information acquired by the electronic device (21A, 21B, 22, 31) via the first signal line (30) differs from the identification information stored in the storage unit (20M), the processing unit (20C) stores the identification information acquired by the electronic device (21A, 21B, 22, 31) in the storage unit (20M) and transmits the acquired identification information via the communication unit (34) to an administrative device (40), an electronic sub-device (23A, 23B) is connected to the electronic device (21A, 21B, 22, 31) via a second signal line (37) and the storage unit (20M) stores in advance identification information for identifying the electronic sub-device (23A, 23B) contained in the working machine (1), wherein the second signal line (37) is a wired signal line, If the identification information of the electronic sub-device (23A, 23B), which is acquired via the first signal line (30) and the electronic device (21A, 21B, 22, 31), differs from the identification information stored in the storage unit (20M), the processing unit (20C) stores the identification information acquired by the electronic sub-device (23A, 23B) in the storage unit (20M) and transmits the acquired identification information via the communication unit (34) to outside the machine (1), the electronic device (21A, 21B, 22, 31) is connected to the first signal line (30) and the second signal line (37) which is different from the first signal line (30), and the electronic device (21A, 21B, 22, 31) is adapted to a first communication protocol used with the first signal line (30) and to a second communication protocol used with the second signal line (37), and the electronic sub-device (23A, 23B) is connected to the electronic device (21A, 21B, 22, 31) via the second signal line (37), the electronic sub-device (23A, 23B) is adapted to the second communication protocol, and the electronic sub-device (23A, 23B) is a device that includes at least one peripheral device and a control unit

Description

Area

[0001] The present invention relates to a working machine and an administrative system. background

[0002] A piece of machinery, such as an excavator or a dump truck, is equipped with various electronic devices. These devices may, for example, require software upgrades or be replaced for repairs. Additionally, if the software installed in an electronic device is upgraded, it may be necessary to upgrade the software version of the machine itself. Therefore, it is essential to maintain a change history for the electronic devices installed in the machine.

[0003] For example, JP 2000 076 505 A discloses an information management system for an operating device, comprising an operating device of a construction machine and an information rewriting device located in an administrative center, which transmits control information to a communication satellite. The information rewriting device is equipped with a query device for retrieving the version number of the control information stored in the operating device. If the version number is not the latest, the control information of the latest version number is transmitted to the operating device of the construction machine for updating.

[0004] With the technique described in JP 2000 076 505 A, it is not possible for the control center to see whether the construction machine's control information has been updated when the control information version is updated at a work site or in a work area. Therefore, the control center's information rewriting device necessarily communicates with construction machines representing a control target, including other construction machines that have not been updated. Additionally, the technique described in JP 2000 076 505 A determines whether the version number is the latest based on information from the control center's information rewriting device. For this reason, for example, in a case where the control information is updated at the work site or in a work area, the control center's control center's control information is not up to date.In the area of ​​operation of the construction machine, one possibility is that the technology described in JP 2000 076 505 A is not capable of determining whether the information rewriting device has been updated to the latest version number. Therefore, with the technology according to JP 2000 076 505 A, there is a possibility that the information update in the management center is not carried out securely or reliably.

[0005] Furthermore, DE 103 53 257 A1, for example, discloses a system and a method for compiling a service history for a machine. A transmitter is attached to a part of the machine requiring maintenance. When the part is installed, the transmitter forwards an identification, which is received by a receiver, preferably attached to the machine. The processor stores the identification and the associated machine data to compile the service history. The service history data can be forwarded to a remote storage system for storage and display.

[0006] Furthermore, publication DE 10 2005 000 999 A1 discloses a method and system for vehicle component management, a method and system for updating vehicle component management data, and a vehicle component management center, and publication US 2012 / 0 215 418 A1 discloses a system for monitoring components of a working machine. Summary

[0007] One object of the invention is to reliably determine a change history for an administration in a case in which an electronic device provided in a working machine is replaced or a software version of it is updated.

[0008] According to the present invention, a working machine and an administration system are provided as defined in the patent claims.

[0009] According to the present invention, in a case where an electronic device provided in a working machine is replaced or a software version thereof is updated, the change history for an administration can be reliably determined. Brief description of the drawing Fig. Figure 1 is a representation illustrating a deployment location or area to which an administrative system is applied according to an exemplary embodiment. Fig. Figure 2 is a representation that illustrates an example of an administrative system. Fig. Figure 3 is a conceptual representation that illustrates identification information. Fig. Figure 4 is a representation illustrating a processing flow of an administrative procedure according to the example. Description of exemplary implementations

[0010] With reference to the drawing, types (exemplars) for carrying out the invention are described in detail. <Overview of Management System 100>

[0011] Fig. Figure 1 is a representation illustrating a deployment location or area to which a management system 100 according to an exemplary embodiment is applied. The management system 100 monitors, for example, whether an electronic device included in a machine and at least one of the devices controlled by the electronic device (hereinafter conveniently referred to as electronic devices) are modified. The modification of the electronic devices includes at least one change to the electronic device itself, a change to software installed in the electronic device, and a replacement of parts in the electronic device.

[0012] In the Fig. In the illustrated example 1, the management system 100 manages the states of a dump truck MCD and an excavator MCS, but the work or construction machine in this embodiment is not limited to these. For example, the management system 100 can manage a wheel loader, a bulldozer, a forklift, and the like. In the following description, the dump truck MCD and the excavator MCS can appropriately be referred to as work or construction machine 1.

[0013] In the management system 100, for example, a management device 40 collects information about the change history of the electronic devices provided in the work machine 1 from the work machine 1 via a wireless communication system, a wireless LAN (Local Area Network), or satellite communication, which is applied to mobile communication of a portable telephone and the like. The management device 40 is located, for example, in a management center or office 3. The management center 3 can be located at a deployment site or in an operational area where the work machine 1 is in operation, or it can be located at a location that is remote from the deployment site or area.the area of ​​operation where the work machine 1 is in operation, for example, a location where a service person is present who checks the work machine 1 for preventive maintenance, or where a manager responsible for the site or area of ​​operation is present. In addition, the management device 40 can be provided at a predetermined location, or it can be mobile to other locations, such as a mobile device with a wireless communication function.

[0014] In this embodiment, the management device 40 is connected to a communication line 101 via a communication device 103. The communication line 101 is connected to a base station 6. The base station 6 relays various types of information transmitted by a communication device provided in the work machine 1 and transmits the information to the management device 40.

[0015] The work machine 1 causes its own communication device to transmit the change history, collected by its own processing device from the electronic devices, to the outside via an antenna 34A. The management device 40 receives various types of information transmitted by the work machine 1's communication device, including the change history of the electronic devices, via the base station 6, the communication line 101, and the communication device 103.

[0016] The control device 40 can transmit information to the working machine 1. In this case, the control device 40 transmits the information given to the working machine 1 via the communication device 103 to the communication line 101. The information is transmitted from the base station 6 in the form of electrical waves. The electrical waves, which comprise the information transmitted from the base station 6 to be given to the working machine 1, are received at the antenna 34A of the working machine 1. The communication device of the working machine 1 subjects the electrical waves received by the antenna 34A to a demodulation and conversion process in order to extract the original information, which can be understood by a processing device 20 to be described below, and then it transmits the information to the processing device 20 of the working machine 1.In this way, the work machine 1 and the management device 40 can exchange information via wireless communication. Next, the work machine 1, the management device 40, and the management system 100 will be described in more detail. <Verwaltungssystem 100>

[0017] Fig. Figure 2 is a diagram illustrating an example of the management system 100. The management system 100 manages the change history of the electronic device installed in the work machine 1. In other words, if a change is made to the electronic device installed in the work machine 1, the management system 100 manages the updated information. The management system 100 includes a vehicle system 1S installed in the work machine 1 and the management device 40 installed in the management center. The vehicle system 1S and the management device 40 exchange information via communication line 101 and communication device 103.

[0018] In the management system 100, the processing device 20 of the vehicle system 1S acquires or obtains information PSN1, PSN2, ... and PSNm for identifying the electronic devices (hereinafter expediently referred to as identification information) via a signal line 30 provided in the vehicle system 1S. The processing device 20 transmits the acquired or obtained identification information PSN1, PSN2, ... and PSNm to the management device 40 via the communication line 101, which is located outside the machine 1. In this embodiment, the identification information PSN1, PSN2, ... and PSNm is expressed in the plural, but the number is not limited. If there is no need to specify the difference between the identification information PSN1, PSN2, ..., and PSNm, the information is referred to as identification information PSN.

[0019] For the sake of simplicity, the description in this embodiment assumes that a working machine 1, a vehicle system 1S, and an administrative device 40 are connected via the communication line 101. However, there is no limitation regarding the number of working machines 1 and administrative devices 40. Next, the vehicle system 1S will be described. (Vehicle system 1S)

[0020] In the vehicle system 1S, the processing device 20, a motor / machine control unit 21A, a pump control unit 21B, a monitor or monitoring / control device 22, and various types of sensors 31 are connected to the signal line 30. The electronic devices connected to the signal line 30 are configured to communicate with each other. In the following description, the signal line 30 provided in the working machine 1 will be referred to as the vehicle signal line 30.

[0021] A key switch 32 is located near the driver's seat. A storage or secondary battery 24, which serves as a power supply for the working machine 1, supplies energy to the electronic devices via the key switch 32. The key switch 32 is located between the storage or secondary battery 24 and the electronic devices, such as the processing device 20 and the motor / machine control unit 21A. When the key switch 32 is switched on, energy is supplied from the storage or secondary battery 24 to the electronic devices via the key switch 32. When the key switch 32 is switched off, no energy is supplied from the storage or secondary battery 24 to the electronic devices via the key switch 32.

[0022] The processing device 20 comprises a processing unit 20C, a storage unit (a first storage unit) 20M, an activation control unit 36, and a communication unit (a first communication device) 34. The processing unit 20C is, for example, a central processing unit (CPU). The storage unit 20M is, for example, random-access memory (RAM), read-only memory (ROM), flash memory, or a combination thereof. The storage unit 20M stores at least the identification information PSN. In addition, the storage unit 20M stores computer programs containing instructions for the processes performed by the processing device 20.

[0023] The identification information PSN of the electronic devices provided in the machine 1 is / will be pre-stored, for example, in a memory area DBM of the storage unit 20M before the machine 1 is shipped from a factory. The processing device 20 has its own identification information PSNc, which is / will be stored in the memory area DBMc of the storage unit 20M. The identification information PSNc of the processing device 20 itself, which is / will be stored in the memory area DBMc, can be freely written to or read from.

[0024] The motor / machine control unit 21A, the pump control unit 21B, the monitor 22, and the like store their own PSN identification information in memory devices. The PSN identification information is rewritten when the software (computer program) of the electronic devices is reinstalled or when parts of the electronic devices are replaced for repairs. In this case, the PSN identification information stored in the memory devices of the electronic devices is overwritten with new PSN identification information.

[0025] The processing device 20, more precisely the processing unit 20C, captures the identification information PSN from each electronic device via the vehicle signal line 30 at a predetermined time.

[0026] The processing device 20 compares the acquired identification information PSN with the identification information PSN stored in the storage unit 20M. As a result of the comparison, if the acquired identification information PSN differs from the identification information PSN stored in the storage unit 20M, the acquired identification information PSN is stored in the storage unit 20M and transmitted via the communication unit 34 to an external device outside the machine 1. In this case, the processing device 20 overwrites the identification information PSN stored in the storage unit 20M with the acquired identification information PSN.

[0027] After the machine 1 is shipped from the factory, it can be equipped with new electronic devices that are connected to the vehicle signal line 30. In this case, the processing device 20 acquires the PSN identification information of the new electronic devices via the vehicle signal lines 30. The acquired PSN identification information is new information that has not previously been stored in the storage unit 20M. Therefore, the new PSN identification information differs from the PSN identification information stored in the storage unit 20M. The processing device 20 stores the acquired new PSN identification information in the storage unit 20M and then transmits the information to an external device via the communication unit 34.

[0028] As described above, the processing device 20 stores the captured PSN identification information in the storage unit 20M and transmits this information to the management device 40 via the communication unit 34 if the PSN identification information captured at a predetermined time differs from the PSN identification information stored in the storage unit 20M. This process allows the management device 40 to reliably determine the change history of the electronic devices in cases where the software of the electronic devices provided in the work machine 1 is updated, new electronic devices are replaced for repairs, or new electronic devices are added to the work machine 1. Therefore, the management device 40 can correctly manage the change history occurring in the work machine 1.

[0029] The activation control unit 36 ​​and the communication unit 34 operate in a power-saving mode even when the key switch 32 is off. If it receives an instruction from the management device 40 via the communication unit 34, the activation control unit 36 ​​can cause power to be supplied to the processing unit 20C to activate it. Power can also be supplied to the processing unit 20C by operating the key switch 32. If the key switch 32 is off, and the communication unit 34 is repeatedly in an on-period and an off-period at each predetermined time according to a predetermined cycle, a control unit of the communication line 101 can retry transmitting the request instruction to the communication unit 34 in a predetermined cycle until the communication unit 34 receives the request instruction.

[0030] The communication unit 34 is equipped with the communication antenna 34A and can establish wireless communication with the base station 6. The base station 6 is connected to the communication line 101. The communication line 101 is connected to the communication device 103 on the part of the management device 40. The communication unit 34 can exchange information with the management device 40 via the base station 6, the communication line 101, and the communication device 103.

[0031] The vehicle signal line 30 is, for example, a Controller Area Network (CAN). The types and number of electronic devices connected to the vehicle signal line 30 are not limited to the configuration described above. Next, another electronic device of the vehicle system 1S that is connected to the vehicle signal line 30 is described.

[0032] The machine / motor control unit 21A controls a motor or machine 21EG. The motor / machine control unit 21A has its own identification information PSN stored in the storage device. In this embodiment, the motor / machine control unit 21A also has the identification information PSN of the motor or machine 21EG stored in the storage device. The processing device 20 can retrieve the identification information PSN of the motor / machine control unit 21A and of the motor or machine 21EG from the motor / machine control unit 21A.

[0033] The pump control unit 21B controls a hydraulic pump that is part of a hydraulic system 21PN of the working machine 1. The hydraulic system 21PN comprises the hydraulic pump driven by the motor or machine 21EG and a hydraulic circuit that distributes the operating oil discharged by the hydraulic pump to a hydraulic actuator, such as a hydraulic cylinder and a hydraulic motor. The pump control unit 21B has its own identification information, PSN, stored in the storage device. In this embodiment, the pump control unit 21B also stores the identification information, PSN, of the hydraulic system, such as the hydraulic pump, hydraulic actuator, and hydraulic control valve included in the hydraulic system 21PN, in the storage device. The processing device 20 can retrieve the identification information, PSN, of the pump control unit 21P and the hydraulic system from the pump control unit 21B.

[0034] The monitor 22 is a display that shows various types of information relating to the machine 1 or serves as an input device. The monitor 22 is, for example, a liquid crystal display and may be equipped with a touchscreen. In this embodiment, the monitor 22 communicates with the processing device 20, the motor / machine control unit 21A, the pump control unit 21B, and the various types of sensors 31 using a communication protocol (a first communication protocol) applied to the vehicle signal line 30.

[0035] In this embodiment, a second signal line 37, which differs from the vehicle signal line 30, is connected to the monitor 22. For example, the second signal line 37 is a Controller Area Network (CAN) to which a second communication protocol, different from the first, is applied. The second signal line 37 is connected, for example, to a control unit 23A and a control unit 23B, which serve as electronic sub-devices. The control unit 23A is, for example, an ID key reader. The control unit 23B is, for example, a monitor or a monitoring / control device for monitoring or controlling the peripherals of the machine 1. The control units 23A and 23B communicate with the monitor 22 using the second communication protocol.In this way, the monitor 22 can communicate using two different types of communication protocols. Therefore, the monitor 22 can communicate between devices operating according to different communication protocols. The types and number of electronic sub-devices connected to the second signal line 37 are not limited to this configuration. A control unit other than the monitor 22 can include electronic sub-devices connected via a third signal line, distinct from the vehicle signal line 30.

[0036] Control unit 23A stores the identification information PSN of the ID key reader. Control unit 23B stores the identification information PSN of the peripheral monitoring device. Monitor 22 communicates with control units 23A and 23B via the second signal line 37 and acquires the identification information PSN of control units 23A and 23B, namely the identification information PSN of the ID key reader and the peripheral monitoring device. Then, processing unit 20 communicates with monitor 22 via vehicle signal line 30 and acquires the identification information PSN of monitor 22 and the identification information PSN of the ID key reader and the peripheral monitoring device.

[0037] The various types of sensors 31 are sensors used to detect the condition of the working machine 1. These various types of sensors 31 include, for example, a position detection device that detects the current position of the working machine 1, such as a GPS sensor (GPS: "Global Positioning System"), a sensor that detects the rotational speed of the motor or machine 21EG (the motor / machine speed per unit of time), a sensor that detects the temperature of the cooling water of the motor or machine 21EG (a motor / machine coolant temperature), a sensor that detects the temperature of the operating oil (a working oil temperature), or the like. The sensors 31 differ depending on the class or category or type of the working machine 1.In this embodiment, the sensors 31 are connected to the vehicle signal line 30 and communicate according to the first communication protocol, which allows direct communication with the processing unit 20C. The sensors 31 are connected, via a fourth signal line separate from the vehicle signal line 30, to the electronic device that uses the sensor signals. The sensors 31 have stored the PSN identification information. The change history of the configured sensors 31 is managed such that the processing unit 20 acquires the PSN identification information via the vehicle signal line 30 or via the electronic device capable of communicating with the sensors 31. (Administrative Device 40)

[0038] Next, the management device 40 is described. The management device 40 maintains a change history of the electronic devices provided in the work machine 1. The management device 40 comprises a processing device 41, a storage unit (a second storage unit) 42, and an input / output unit 43. The processing unit 41 is, for example, a CPU. The storage unit 42 is, for example, RAM, ROM, flash memory, a hard disk drive, or a combination thereof. The input / output unit 43 sends information in and out between the processing unit 41 and the storage unit 42, and it sends information in and out between the communication device (a second communication device) 103, which is connected to the management device 40, and the processing unit 41.

[0039] The management device 40 is configured to electrically connect the input / output unit 43 to the communication device 103. The communication device 103 is electrically connected to the communication line 101. Through this configuration, the management device 40 is connected to the communication line 101 via the communication device 103.

[0040] The storage unit 42 of the management device 40 stores at least the PSN identification information. For example, the PSN identification information of a work machine 1 is set up or arranged in a file DBA. In this embodiment, the storage unit 42 stores the PSN identification information of a plurality of work machines 1 as a plurality of files DBA1, DBA2, ... and DBAn. The management device 40 manages the PSN identification information of the plurality of work machines 1, but the number of work machines 1 managed by the management device 40 is not limited.

[0041] The management device 40, more precisely the processing unit 41 of the management device 40, captures the PSN identification information transmitted by the processing device 20 of the work machine 1 via the communication line 101 and the communication device 103. As described above, the PSN identification information is transmitted from the work machine 1 when the PSN identification information is / is changed as a result of a change in the configuration of the electronic devices provided in the work machine 1.

[0042] If the identification information PSN is captured by the work machine 1 in a case where the identification information PSN corresponding to the captured identification information PSN is present in storage unit 42, the processing device 40 stores the captured identification information PSN instead of the identification information PSN of storage unit 42 and updates the change history. In a case where the identification information PSN corresponding to the captured identification information PSN is not present in storage unit 42, the management device 40 stores the captured identification information PSN anew in storage unit 42.

[0043] Through this process, the management device 40 can reliably determine the change history of the electronic devices for management purposes in cases where the software of the electronic devices provided in the work machine 1 is updated, new electronic devices are replaced for repairs, and new electronic devices are added to the work machine 1. Therefore, the management device 40 can correctly manage events that occur in the work machine 1.

[0044] In a case where the PSN identification information of the electronic devices is changed by replacing the electronic devices provided in the machine 1 or by updating the software, the processing device 20 of the machine 1 automatically transmits the changed PSN identification information to the management device 40. Through this function, the management device 40 automatically updates the PSN identification information of the storage unit 42. Therefore, the management device 40 does not need to request the transmission of the PSN identification information to the processing device 20 of the machine 1.

[0045] Fig. Figure 3 is a conceptual representation illustrating the PSN identification information. In this embodiment, the PSN identification information includes at least a component number A and a hardware serial number B, and may additionally include a hardware part number C, a software part number D, and a software version number E. In this embodiment, all data is described as 8 bits wide, but its size is not limited to this. Furthermore, the information belonging to the PSN identification information is not limited to these five information types and may include other information types.The component number A is a number that identifies the types of electronic devices configured by at least one or more hardware components and at least one or more software components, serving as a unique number to specify an electronic device among the same types of electronic devices. The hardware serial number B is a serial number used to identify electronic devices with the same component number A. The hardware part number C is a unique hardware number used to specify hardware components of the electronic devices. The software part number D is a unique software number used to specify a software component installed in the electronic device. The software version number E is a number used to distinguish between versions of the software components.Even if the software components are of the same type, the software version number E will differ in a case where the version of the same software component has undergone an upgrade or improvement.

[0046] In this embodiment, a unique name CN is appended to the identification information PSN. When the processing device 20 of the machine 1 rewrites the identification information PSN of the storage unit 20M, and when the management device 40 rewrites the identification information PSN of the storage unit 42, the unique name CN is used to compare these pieces of identification information PSN. If the unique names CN are the same, this means that these pieces of identification information PSN originate from the same electronic device.In a case where the identification information PSN, which is captured by the processing unit 20C of the processing device 20 from the electronic devices such as the motor / machine control unit 21A, and the identification information PSN, which is stored in the storage unit 20M of the processing device 20, have the same unique name and are also identical in all of the component number A, the hardware serial number B, the hardware part number C, the software part number D and the software version number E, both pieces of identification information are identical or matching.Additionally, in a case where the identification information PSN captured by the electronic devices and the identification information PSN of the storage unit 20M have the same unique name CN, but differ in at least one of the component number A, hardware serial number B, hardware part number C, software part number D, and software version number E, both pieces of identification information are different.

[0047] For example, in the case of capturing the PSN identification information of the engine / machine control unit 21A via the in Fig. The processing unit 20C, which is included in the processing device 20 of the working machine 1, retrieves the identification information PSN with the same unique name CN as that of the acquired identification information PSN from the information stored in the storage unit 20M via the illustrated vehicle signal line 30. If the identification information PSN with the same unique name CN as that of the identification information PSN of the engine / machine control unit 21A is present in the storage unit 20M, the processing unit 20C reads the identification information PSN from the storage unit 20M. The identification information PSN with the same unique name CN as that of the identification information PSN of the engine / machine control unit 21A is the identification information of the engine / machine control unit 21A.

[0048] The processing unit 20C compares the captured identification information PSN of the motor / machine control unit 21A with the read identification information PSN. If the two differ, the processing unit 20C writes the identification information PSN, which is stored in the memory unit 20M and has the same unique name CN as that of the identification information of the motor / machine control unit 21A, into the captured identification information PSN of the motor / machine control unit 21A.In this way, if the identification information PSN of the motor / machine control unit 21A is changed as a result of a modification occurring in the motor / machine control unit 21A, the identification information PSN of the motor / machine control unit 21A, which is stored in the storage unit 20M, is rewritten for an update with the changed identification information PSN. Immediately after the rewriting of the identification information PSN, the processing unit 20C transmits the acquired identification information PSN of the motor / machine control unit 21A to the management device 40 via the communication unit 34. The time at which this occurs is determined by the data set.The transfer of the captured identification information PSN to the administrative device 40 is not restricted as indicated above, and the transfer can be carried out after a predetermined time has elapsed since the rewriting.

[0049] In a case where the captured identification information PSN of the engine / machine control unit 21A is the same as the read identification information PSN, the processing unit 20C does not update the identification information PSN stored in the storage unit 20M that has the same unique name CN as the identification information PSN of the engine / machine control unit 21A. In this case, the processing unit 20C does not transmit the captured identification information PSN of the engine / machine control unit 21A to the management device 40.

[0050] The processing unit 41 of the management device 40, which has acquired the identification information PSN of the motor / machine control unit 21A, retrieves from the information stored in the storage unit 42 the identification information PSN with the same unique name CN as that of the identification information PSN of the motor / machine control unit 21A acquired by the working machine 1. If the identification information PSN with the same unique name CN as that of the identification information PSN of the motor / machine control unit 21A is present in the storage unit 42, the processing unit 41 reads the identification information PSN from the storage unit 42.

[0051] The processing unit 41 compares the identification information PSN of the motor / machine control unit 21A, which is acquired by the working machine 1, with the identification information PSN read from it. If the two differ, the processing unit 41 stores the change history in which the identification information PSN, which is stored in the storage unit 41 and has the same unique name CN as that of the identification information of the motor / machine control unit 21A, has been changed by the identification information PSN of the motor / machine control unit 21A, which is acquired by the working machine 1.In this way, in a case where the identification information PSN of the motor / machine control unit 21A is changed, the identification information PSN obtained after being changed to the identification information PSN of the motor / machine control unit 21A, which is stored in the memory unit 42 of the management device 40, is added and stored.

[0052] The identification information PSN of the motor / machine control unit 21A was described as an example of the rewriting of the identification information PSN, but the rewriting of the identification information PSN is also the same in the cases of the pump control unit 21B and the monitor 22. Even in a case where the processing device 20 of the working machine 1 changes its own identification information PSN, similar to the case where the identification information PSN of the motor / machine control unit 21A is rewritten, the identification information PSN of the storage unit 20M is rewritten and the changed identification information PSN is transmitted to the management device 40. Next, a processing flow of a management procedure according to the embodiment is described.

[0053] Fig. Figure 4 is a diagram illustrating the processing flow of the administrative procedure according to the exemplary implementation. In step S101, the [document / process] requires... Fig. 2. Processing unit 20C of processing device 20 illustrates the PSN identification information of the electronic devices, such as the engine / machine control unit 21A, the pump control unit 21B, and the monitor 22, which are connected via the vehicle signal line 30. The electronic devices that have received the request transmit their own PSN identification information, the PSN identification information of the electronic sub-device that is communicatively connected to the electronic devices, and the PSN identification information of parts of the controlled object via the vehicle signal line 30 to processing unit 20C. In step S102, processing unit 20C acquires the transmitted PSN identification information.

[0054] In this embodiment, the identification information PSN requested by the processing unit 20C and acquired by the electronic devices comprises at least the component number A and the hardware serial number B as a plurality of pieces of information, and may further comprise at least one of the hardware part number C, the software part number D, and the software version number E. Additional pieces of information may also be included. The management device 40 can remotely modify / change a plurality of types of information contained in the identification information PSN acquired by the processing device 20 via the communication device 103 and the communication unit 34 of the machine 1, which are located in Fig. Figure 2 illustrates this. Additionally, the management device 40 can modify the target electronic devices, from which the processing device 20 of the work machine 1 acquires the PSN identification information, via the communication unit 34 of the work machine 1. With this configuration, the management device 40 can easily modify the type of PSN identification information transmitted by the work machine 1, which is operating at a remote location or in a remote area.

[0055] The time or timing at which the processing unit 20C requests the PSN identification information from the electronic devices is not limited, but in the embodiment, the processing unit 20C requests the PSN identification information at the time or timing at which the in Fig. The illustrated key switch 32 is / becomes switched on, and it acquires the identification information PSN via the signal line 30. The software of the electronic devices is generally changed during the time when the key switch 32 is switched off. Additionally, the electronic devices are also generally replaced during the time when the key switch 32 is switched off. At the time when the key switch 32 is / becomes switched on, the processing unit 20C requests the identification information PSN so that the change is reliably reflected immediately after a change occurs in the electronic devices.

[0056] In step S103, processing unit 20C compares the captured PSN identification information with the PSN identification information of storage unit 20M using the unique name CN. In other words, processing unit 20C compares the captured PSN identification information with the PSN identification information of storage unit 20M using the same unique name CN. If, in step S104, the captured PSN identification information is not present in storage unit 20M (NO in step S104), processing unit 20C stores the captured PSN identification information in storage unit 20M and transfers it to the storage unit 20M. Fig. 2. Management device 40 is illustrated in step S105. The storage of the identification information PSN in the storage unit 20M and the transfer of the identification information PSN to the management device 40 can be performed independently of their order.

[0057] If, in step S104, the captured identification information PSN is present in storage unit 20M (YES in step S104), the process proceeds to step S106. If, in step S106, the captured identification information PSN differs from the identification information PSN of storage unit 20M with the same unique name CN (NO in step S106), processing unit 20C stores the captured identification information PSN in storage unit 20M in step S105. Specifically, processing unit 20C overwrites the identification information PSN of storage unit 20M with the captured identification information PSN for an update. Additionally, processing unit 20C transfers the identification information PSN in step S105 to the [missing information]. Fig. 2 illustrated administrative device 40.

[0058] In a case where, in step S106, the captured identification information is equal to the PSN identification information of storage unit 20M with the same unique name CN (YES in step S106), the administrative procedure process ends according to the exemplary implementation.

[0059] In this way, if a change occurs in the electronic devices provided in the machine 1, the processing device 20 of the machine 1 can quickly transmit the changed information to the management device 40. Therefore, the management device 40 can reliably and quickly determine the change history of the electronic devices provided in the machine 1. Additionally, the electronic devices, such as the motor / machine control unit 21A and the pump control unit 21B, can also store the PSN identification information of the controlled device.Therefore, in a case where a certain change occurs in the electronic device representing a controlled object, the management device 40 rewrites the identification information of the device representing the controlled object in accordance with the change, and can thus also reliably and quickly determine the change history of the device controlled by the electronic devices provided in the working machine 1.

[0060] In this embodiment, if a certain change occurs in the electronic devices provided in the machine 1, the processing device 20 of the machine can display the corresponding event, for example, on the monitor 22, to inform the operator. The description further specifies that the PSN identification information is currently present, but if the PSN identification information has not been present for a predetermined period, the processing device 20 of the machine 1 can determine that the electronic devices have been removed from the machine 1, delete the PSN identification information from the storage unit 21M, and transmit the event to the management device 40. Reference symbol list 1 WORK MACHINE 1S VEHICLE SYSTEM 3 ADMINISTRATIVE CENTER 20 PROCESSING DEVICE 20C PROCESSING UNIT 20M STORAGE UNIT 21A MOTOR / MACHINE CONTROL UNIT 21B PUMP CONTROL UNIT 22 MONITOR OR CONTROL / SURVEILLANCE DEVICE 23A, 23B CONTROL UNIT 24 STORAGE OR SECONDARY BATTERY 30 SIGNAL CABLE (VEHICLE SIGNAL CABLE) 31 SENSORS 32 key switches 34 COMMUNICATION UNIT 37 SECOND SIGNAL LINE 40 ADMINISTRATIVE DEVICE 41 PROCESSING UNIT 42 STORAGE UNIT 100 ADMINISTRATION SYSTEM 103 COMMUNICATION DEVICE PSN, PSN1, PSNc, PSNm IDENTIFICATION INFORMATION

Claims

[1] Working machine (1) with: an electronic device (21A, 21B, 22, 31); a first signal line (30) to which the electronic device (21A, 21B, 22, 31) is connected, wherein the first signal line (30) is a wired vehicle signal line; a storage unit (20M) which stores in advance at least identification information for identifying the electronic device (21A, 21B, 22, 31) contained in the working machine (1); a communication unit (34) that communicates wirelessly to outside the working machine (1); and a processing unit (20C) that determines whether the identification information acquired by the electronic device (21A, 21B, 22, 31) via the first signal line (30) differs from the identification information stored in the storage unit (20M), wherein If the processing unit (20C) determines that the identification information acquired by the electronic device (21A, 21B, 22, 31) via the first signal line (30) differs from the identification information stored in the storage unit (20M), the processing unit (20C) stores the identification information acquired by the electronic device (21A, 21B, 22, 31) in the storage unit (20M) and transmits the acquired identification information via the communication unit (34) to an administrative device (40), an electronic sub-device (23A, 23B) is connected to the electronic device (21A, 21B, 22, 31) via a second signal line (37) and the storage unit (20M) stores in advance identification information for identifying the electronic sub-device (23A, 23B) contained in the working machine (1), wherein the second signal line (37) is a wired signal line, If the identification information of the electronic sub-device (23A, 23B), which is acquired via the first signal line (30) and the electronic device (21A, 21B, 22, 31), differs from the identification information stored in the storage unit (20M), the processing unit (20C) stores the identification information acquired by the electronic sub-device (23A, 23B) in the storage unit (20M) and transmits the acquired identification information via the communication unit (34) to outside the machine (1), the electronic device (21A, 21B, 22, 31) is connected to the first signal line (30) and the second signal line (37) which is different from the first signal line (30), and the electronic device (21A, 21B, 22, 31) is adapted to a first communication protocol used with the first signal line (30) and to a second communication protocol used with the second signal line (37), and the electronic sub-device (23A, 23B) is connected to the electronic device (21A, 21B, 22, 31) via the second signal line (37), the electronic sub-device (23A, 23B) is adapted to the second communication protocol, and the electronic sub-device (23A, 23B) is a device that includes at least one peripheral device and a control unit [2] Working machine (1) with: an electronic device (21A, 21B, 22, 31); a first signal line (30) to which the electronic device (21A, 21B, 22, 31) is connected, wherein the first signal line (30) is a wired vehicle signal line; a storage unit (20M) which stores at least identification information for identifying the electronic device (21A, 21B, 22, 31); a communication unit (34) that communicates wirelessly to outside the working machine (1); and a processing unit (20C), wherein If the identification information acquired by the electronic device (21A, 21B, 22, 31) via the first signal line (30) differs from the identification information stored in the storage unit (20M), the processing unit (20C) stores the identification information acquired by the electronic device (21A, 21B, 22, 31) in the storage unit (20M) and transmits the acquired identification information via the communication unit (34) to an administrative device (40), the identification information of the electronic device (21A, 21B, 22, 31) includes partial identification information as information for identifying a part of a controlled object that is controlled by the electronic device (21A, 21B, 22, 31), and the storage unit (20M) that stores the partial identification information, If the partial identification information acquired by the electronic device (21A, 21B, 22, 31) via the first signal line (30) differs from the partial identification information stored in the storage unit (20M), the processing unit (20C) stores the partial identification information acquired by the electronic device (21A, 21B, 22, 31) in the storage unit (20M) and transmits the acquired partial identification information via the communication unit (34) to outside the machine (1), an electronic sub-device (23A, 23B) is connected to the electronic device (21A, 21B, 22, 31) via a wired second signal line (37) and the storage unit (20M) stores identification information for identifying the electronic sub-device (23A, 23B), If the identification information of the electronic sub-device (23A, 23B), which is acquired via the first signal line (30) and the electronic device (21A, 21B, 22, 31), differs from the identification information stored in the storage unit (20M), the processing unit (20C) stores the identification information acquired by the electronic sub-device (23A, 23B) in the storage unit (20M) and transmits the acquired identification information via the communication unit (34) to outside the machine, the electronic device (21A, 21B, 22, 31) is connected to the first signal line (30) and the second signal line (37) which is different from the first signal line (30), and the electronic device (21A, 21B, 22, 31) is adapted to a first communication protocol used with the first signal line (30) and to a second communication protocol used with the second signal line (37), and the electronic sub-device (23A, 23B) is connected to the electronic device (21A, 21B, 22, 31), the electronic sub-device (23A, 23B) is adapted to the second communication protocol, and the electronic sub-device (23A, 23B) is a device that includes at least one peripheral device and a control unit. [3] Working machine according to one of claims 1 and 2, additionally comprising: a power supply (24) that supplies power to the electronic device and the processing unit (20C); and a switch (32) provided between the power supply (24) and the electronic device (21A, 21B, 22, 31) and the processing unit (20C) to switch the power on and off, wherein The processing unit (20C) receives the identification information from the electronic device (21A, 21B, 22, 31) connected to the first signal line (30) at a time when the switch (32) is operating to supply the energy. [4] Administrative system (100) with: a working machine (1) comprising an electronic device (21A, 21B, 22, 31), a first signal line (30) to which the electronic device (21A, 21B, 22, 31) is connected, a first storage unit (20M) connected to the first signal line (30) and storing at least identification information for identifying the electronic device (21A, 21B, 22, 31), a first communication device (34) that communicates wirelessly to outside the working machine (1), and a processing unit (20C) that receives the identification information from the electronic device (21A, 21B, 22, 31), wherein an electronic sub-device (23A, 23B) is connected to the electronic device (21A, 21B, 22, 31) via a second signal line (37), the first storage unit (20M) containing identification information for identifying the electronic sub-device (23A,23B) stores and the second signal line (37) is a wired signal line; and, a management device (40) comprising a second communication device (103) which communicates with the first communication device (34) and a second storage unit (42) which stores at least identification information for identifying the electronic device (21A, 21B, 22, 31) and the electronic sub-device (23A, 23B), wherein the management device (40) exchanges information with the processing unit (20C) about the second communication device (103) and the first communication device (34), wherein if the identification information of the electronic device (21A, 21B, 22, 31) or the identification information of the electronic sub-device (23A, 23B) acquired via the electronic device (21A, 21B, 22, 31) differs from the identification information stored in the first storage unit (20M), the processing unit (20C) stores the identification information acquired by the electronic device (21A, 21B, 22, 31) or the electronic sub-device (23A, 23B) in the first storage unit (20M) and transmits the acquired identification information to the management device (40) via the first communication device (34) and the second communication device (103), the management device (40) updates the identification information of the second storage unit (42) using the identification information of the electronic device (21A, 21B, 22, 31) or the electronic sub-device (23A, 23B) acquired via the second communication device (103), the electronic device (21A, 21B, 22, 31) is connected to the first signal line (30) and the second signal line (37) which is different from the first signal line (30), and the electronic device (21A, 21B, 22, 31) is adapted to a first communication protocol used with the first signal line (30) and to a second communication protocol used with the second signal line (37), and the electronic sub-device (23A, 23B) is connected to the electronic device (21A, 21B, 22, 31), the electronic sub-device (23A, 23B) is adapted to the second communication protocol, and the electronic sub-device (23A, 23B) is a device that includes at least one peripheral device and a control unit. [5] Management system (100) according to claim 4, wherein The identification information includes a variety of information types, and the management device (40) modifies the multitude of information types captured by the processing unit (20C) via the second communication device (103) and the first communication device (34).

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