Mobile terminal and data processing method

Abstract

A processor (65) of a mobile terminal (6) according to an embodiment acquires measured data of a hydraulic pump (2) and stores the measured data in a memory (61) when a symbol (21) displayed on a surface of the hydraulic pump (2) is captured by a camera (63). The processor (65) stores, in a memory (61), the minimum used discharge flow rate and the reference rotational speed, which are input in the input screen on the touch panel (62). Furthermore, when a data transmission button on a touch panel (62) is clicked, a processor (65) causes a wireless communication module (64) to transmit the measured data, the minimum use discharge flow rate, and the reference rotational speed, which are stored in a memory (61), to a controller (4) for a hydraulic pump (2) or a wireless LAN router (5) connected to the controller (4).

Description

Technical Field

[0001] The present disclosure relates to a mobile terminal capable of communicating with a controller for a hydraulic pump via wireless communication and a data processing method using the mobile terminal. Background Art

[0002] In machines such as construction machinery and engineering machinery, a hydraulic pump that supplies working fluid to a hydraulic actuator is sometimes used, in which the larger the command current, the larger the discharge capacity per revolution. For example, see Japanese Patent Publication No. 2019-210974. In this case, the hydraulic pump is controlled by a controller in such a way that the faster the working speed of the hydraulic actuator, the larger the discharge capacity of the hydraulic pump.

[0003] Specifically, an operation signal corresponding to the operation amount of an operation device for operating the hydraulic actuator is input to the controller. The operation device is used to determine the operating speed of the hydraulic actuator according to the operation amount of the operation device. A command current corresponding to the operation signal is sent from the controller to the hydraulic pump. Summary of the invention

[0004] However, different minimum discharge capacities are required for hydraulic pumps depending on the machine on which they are installed. If the hydraulic pump has a larger discharge capacity as the command current increases, a minimum usable discharge capacity greater than the mechanical minimum capacity can be electrically set. If the minimum usable discharge capacity is set in this way, the same hydraulic pump can be used for machines with different required minimum discharge capacities.

[0005] However, in hydraulic pumps, the Iq characteristic, which is the relationship between the command current and the discharge capacity, has variations due to individual differences. Therefore, when the minimum current corresponding to the minimum discharge capacity is determined based on the performance characteristics in the design, the minimum discharge capacity may deviate from the value that should be set.

[0006] For a hydraulic pump, a minimum discharge flow rate at a reference speed may be required instead of a minimum discharge capacity. In this case, the minimum use discharge flow rate at the reference speed can be electrically set as described above, but when the minimum use current corresponding to the minimum use discharge flow rate is determined based on the performance characteristics of the design, the minimum use discharge flow rate may deviate from the value that should be set for the same reason as described above.

[0007] Therefore, an object of the present disclosure is to provide a mobile terminal and a data processing method that can correctly set the minimum usable discharge capacity of a hydraulic pump or the minimum usable discharge flow rate at a reference speed in a controller.

[0008] The present disclosure provides a mobile terminal from a first aspect, which is a mobile terminal including a processor, a memory, a wireless communication module, a touch screen and a camera. When a symbol displayed on the surface of a hydraulic pump indicating that the discharge capacity increases as the command current increases is photographed by the camera, the processor obtains measured data indicating the actual relationship between the command current and the discharge capacity of the hydraulic pump, or measured data indicating the actual relationship between the command current and the discharge flow rate of the hydraulic pump at a specified speed and the specified speed, and saves the data in the memory. An input screen for the minimum usable discharge flow rate of the hydraulic pump and a reference speed for specifying the minimum usable discharge flow rate is displayed on the touch screen, the minimum usable discharge flow rate and the reference speed entered on the input screen are saved in the memory, a virtual data sending button is displayed on the touch screen, and when the data sending button is clicked, the wireless communication module sends the measured data, the minimum usable discharge flow rate and the reference speed stored in the memory to a controller for the hydraulic pump or a wireless LAN router connected to the controller.

[0009] The present disclosure provides a mobile terminal from a second aspect, which is a mobile terminal including a processor, a memory, a wireless communication module, a touch screen and a camera. When a symbol displayed on the surface of a hydraulic pump in which the discharge capacity increases as the command current increases is photographed by the camera, the processor obtains measured data representing the actual relationship between the command current and the discharge capacity of the hydraulic pump, or measured data representing the actual relationship between the command current and the discharge flow rate of the hydraulic pump at a specified speed and the specified speed, and saves the data to the memory, displays an input screen for the minimum usable discharge capacity of the hydraulic pump on the touch screen, saves the minimum usable discharge capacity input on the input screen to the memory, displays a virtual data sending button on the touch screen, and when the data sending button is clicked, causes the wireless communication module to send the measured data and the minimum usable discharge capacity stored in the memory to a controller for the hydraulic pump or a wireless LAN router connected to the controller.

[0010] The present disclosure provides a mobile terminal from a third aspect, which is a mobile terminal including a processor, a memory, a wireless communication module, a touch screen and a camera. When a symbol displayed on the surface of a hydraulic pump in which the discharge capacity increases as the command current increases is photographed by the camera, the processor obtains measured data indicating an actual relationship between the command current and the discharge capacity of the hydraulic pump, or measured data indicating an actual relationship between the command current and the discharge flow rate of the hydraulic pump at a specified speed and the specified speed, and stores the data in the memory. An input screen for a minimum use discharge flow rate of the hydraulic pump and a reference speed for specifying the minimum use discharge flow rate is displayed on the touch screen, the minimum use discharge flow rate and the reference speed input on the input screen are stored in the memory, a minimum use current corresponding to the input minimum use discharge flow rate is determined using the measured data, the determined minimum use current is stored in the memory, a virtual data sending button is displayed on the touch screen, and when the data sending button is clicked, the wireless communication module sends the measured data and the minimum use current stored in the memory to a controller for the hydraulic pump or a wireless LAN router connected to the controller.

[0011] The present disclosure provides a mobile terminal from a fourth aspect, which is a mobile terminal including a processor, a memory, a wireless communication module, a touch screen and a camera. When a symbol displayed on the surface of a hydraulic pump in which the discharge capacity increases as the command current increases is photographed by the camera, the processor obtains measured data indicating the actual relationship between the command current and the discharge capacity of the hydraulic pump, or measured data indicating the actual relationship between the command current and the discharge flow rate of the hydraulic pump at a specified speed and the specified speed, and saves the data in the memory, displays an input screen for the minimum use discharge capacity of the hydraulic pump on the touch screen, saves the minimum use discharge capacity input on the input screen in the memory, determines the minimum use current corresponding to the input minimum use discharge capacity using the measured data, saves the determined minimum use current in the memory, displays a virtual data sending button on the touch screen, and when the data sending button is clicked, causes the wireless communication module to send the measured data and the minimum use current stored in the memory to a controller for the hydraulic pump or a wireless LAN router connected to the controller.

[0012] The present disclosure provides a data processing method from the fifth aspect, which is a data processing method using a mobile terminal. When a symbol displayed on the surface of a hydraulic pump in which the discharge capacity increases as the command current increases is photographed by a camera of the mobile terminal, measured data representing the actual relationship between the command current and the discharge capacity of the hydraulic pump, or measured data representing the actual relationship between the command current and the discharge flow of the hydraulic pump at a specified speed and the specified speed are obtained and saved in the memory of the mobile terminal, an input screen for the minimum usable discharge flow of the hydraulic pump and a reference speed for specifying the minimum usable discharge flow is displayed on the touch screen of the mobile terminal, the minimum usable discharge flow and the reference speed entered on the input screen are saved in the memory, a virtual data sending button is displayed on the touch screen, and when the data sending button is clicked, the wireless communication module of the mobile terminal sends the measured data, the minimum usable discharge flow and the reference speed stored in the memory to a controller for the hydraulic pump or a wireless LAN router connected to the controller.

[0013] The present disclosure provides a data processing method from a sixth aspect, which is a data processing method using a mobile terminal. When a symbol displayed on the surface of a hydraulic pump in which the discharge capacity increases as the command current increases is photographed by a camera of the mobile terminal, measured data representing the actual relationship between the command current and the discharge capacity of the hydraulic pump, or measured data representing the actual relationship between the command current and the discharge flow rate of the hydraulic pump at a specified speed and the specified speed are obtained and saved in a memory of the mobile terminal. An input screen for the minimum usable discharge capacity of the hydraulic pump is displayed on the touch screen of the mobile terminal, the minimum usable discharge capacity input on the input screen is saved in the memory, a virtual data sending button is displayed on the touch screen, and when the data sending button is clicked, the wireless communication module of the mobile terminal sends the measured data and the minimum usable discharge capacity saved in the memory to a controller for the hydraulic pump or a wireless LAN router connected to the controller.

[0014] The present disclosure provides a data processing method from a seventh aspect, which is a data processing method using a mobile terminal. When a symbol displayed on the surface of a hydraulic pump in which the discharge capacity increases as the command current increases is photographed by a camera of the mobile terminal, measured data indicating an actual relationship between the command current and the discharge capacity of the hydraulic pump, or measured data indicating an actual relationship between the command current and the discharge flow rate of the hydraulic pump at a specified speed and the specified speed are obtained and saved in a memory of the mobile terminal. An input screen for a minimum usable discharge flow rate of the hydraulic pump and a reference speed for specifying the minimum usable discharge flow rate is displayed on a touch screen of the mobile terminal. The minimum usable discharge flow rate and the reference speed entered on the input screen are saved in the memory. A minimum usable current corresponding to the input minimum usable discharge flow rate is determined using the measured data. The determined minimum usable current is saved in the memory. A virtual data sending button is displayed on the touch screen. When the data sending button is clicked, the wireless communication module of the mobile terminal sends the measured data and the minimum usable current stored in the memory to a controller for the hydraulic pump or a wireless LAN router connected to the controller.

[0015] The present disclosure provides a data processing method from an eighth aspect, which is a data processing method using a mobile terminal. When a symbol displayed on the surface of a hydraulic pump in which the discharge capacity increases as the command current increases is photographed by a camera of the mobile terminal, measured data indicating the actual relationship between the command current and the discharge capacity of the hydraulic pump, or measured data indicating the actual relationship between the command current and the discharge flow rate of the hydraulic pump at a specified speed and the specified speed are obtained and saved in a memory of the mobile terminal. An input screen for the minimum usable discharge capacity of the hydraulic pump is displayed on the touch screen of the mobile terminal, the minimum usable discharge capacity input on the input screen is saved in the memory, and a minimum usable current corresponding to the input minimum usable discharge capacity is determined using the measured data, and the determined minimum usable current is saved in the memory. A virtual data sending button is displayed on the touch screen of the mobile terminal. When the data sending button is clicked, the wireless communication module of the mobile terminal sends the measured data and the minimum usable current stored in the memory to a controller for the hydraulic pump or a wireless LAN router connected to the controller.

[0016] According to the present disclosure, a mobile terminal and a data processing method are provided that can correctly set the minimum usable discharge capacity of a hydraulic pump or the minimum usable discharge flow rate at a reference rotation speed in a controller. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1A schematic structural diagram of a pump system including a mobile terminal according to a first embodiment; Figure 2 middle, Figure 2 A to 2D are diagrams showing display screens of the touch screen of the mobile terminal; Figure 3 is a graph showing the relationship between the command current and the discharge capacity of the hydraulic pump; Figure 4 is a diagram showing a display screen of a touch screen of a mobile terminal according to a first modification example; Figure 5 is a schematic structural diagram of a pump system including a mobile terminal according to a second variation; Figure 6 middle, Figure 6 A to 6D are diagrams showing display screens of a touch screen of a mobile terminal according to a third modification example; Figure 7 middle, Figure 7 A to 7C are diagrams showing display screens of a touch screen of a mobile terminal according to a fourth modification; Figure 8 middle, Figure 8 8A and 8B are diagrams showing display screens of the touch panel of the mobile terminal according to the second embodiment. DETAILED DESCRIPTION

[0018] <First embodiment> Figure 1 The pump system 1 including the mobile terminal 6 of the first embodiment is shown. The mobile terminal 6 has a program installed therein.

[0019] The pump system 1 includes a hydraulic pump 2 and a controller 4 for the hydraulic pump 2 in addition to a mobile terminal 6. The mobile terminal 6 can communicate with the controller 4 via wireless communication.

[0020] In this embodiment, the wireless LAN router 5 is connected to the controller 4 by wire, and the mobile terminal 6 performs wireless communication with the wireless LAN router 5. However, the controller 4 may include a wireless communication module, and the mobile terminal 6 performs wireless communication with the controller 4 directly.

[0021] The hydraulic pump 2 is a variable capacity pump. The hydraulic pump 2 is driven by a prime mover. The prime mover can be an engine or an electric motor. In the present embodiment, the hydraulic pump 2 is an axial piston pump such as a swash plate pump or a slant axis pump. However, the hydraulic pump 2 can also be a vane pump or other types of pumps.

[0022] The discharge amount per revolution of the hydraulic pump 2, that is, the discharge capacity q, is changed by the regulator 3 provided on the hydraulic pump 2. The command current I is transmitted from the controller 4 to the regulator 3. For example, when the hydraulic pump 2 is a swash plate pump, the regulator 3 can electrically change the hydraulic pressure acting on the servo piston connected to the swash plate of the hydraulic pump 2, or it can be an electric actuator connected to the swash plate of the hydraulic pump 2.

[0023] The hydraulic pump 2 supplies working fluid to the hydraulic actuator. An actuator operation signal corresponding to the operation amount of the operating device for operating the hydraulic actuator is input to the controller 4. The controller 4 outputs a command current I corresponding to the actuator operation signal to the regulator 3 in the form that the discharge capacity q of the hydraulic pump 2 increases as the operation amount of the operating device increases. In addition, when the machine equipped with the hydraulic pump 2 and the hydraulic actuator is an unmanned machine, the operating device can be omitted, and the controller 4 generates the actuator operation signal by itself based on the image taken by the camera.

[0024] The discharge capacity q of the hydraulic pump 2 varies between the mechanical minimum capacity qmin and the maximum capacity qmax according to the command current I. The Iq characteristic, which is the relationship between the command current I and the discharge capacity q, is as follows: Figure 3 When the command current I is less than Ia, the discharge capacity q is the minimum capacity qmin, when the command current I is greater than Ib, the discharge capacity q is the maximum capacity qmax, and when the command current I is between Ia and Ib, the larger the command current I is, the larger the discharge capacity q is.

[0025] return Figure 1 , a symbol 21 is displayed on the surface of the hydraulic pump 2. Regarding the display of the symbol 21 on the surface of the hydraulic pump 2, the symbol 21 may be printed on a plate such as a nameplate or a display plate, and the plate is mounted on the surface of the hydraulic pump 2. Alternatively, the symbol 21 may be directly printed on the surface of the hydraulic pump 2.

[0026] In this embodiment, symbol 21 stores measured data representing the actual Iq characteristic of the hydraulic pump 2. The actual Iq characteristic is a test result when the hydraulic pump 2 is subjected to a performance confirmation test. For example, symbol 21 is a matrix type two-dimensional code (QR code (registered trademark)). However, symbol 21 may also be a tag such as an IC (Integrated Circuit) tag or an RFID (Radio Frequency Identification) tag).

[0027] The mobile terminal 6 includes a memory 61, a touch screen 62, a camera 63, a wireless communication module 64, and a processor 65. These elements are connected to each other via a bus 66. For example, the mobile terminal 6 is a tablet terminal or a smart phone.

[0028] The functions of the elements disclosed in this specification can be performed using circuits or processing circuits including general-purpose processors, special-purpose processors, integrated circuits, ASICs (Application Specific Integrated Circuits), existing circuits and / or combinations thereof that are constructed or programmed to perform the disclosed functions. The processor is considered to be a processing circuit or circuit because it contains transistors or other circuits. In the present disclosure, a circuit, unit or means is hardware that performs the listed functions, or hardware that is programmed to perform the listed functions. The hardware can be the hardware disclosed in this specification, or other known hardware that is programmed or constructed to perform the listed functions. When the hardware is considered to be a processor of a circuit, the circuit, means or unit is a combination of hardware and software, and the software is used in the construction of the hardware and / or processor.

[0029] The processor 65 of the mobile terminal 6 performs the following operations according to the program stored in the memory 61. Thus, the data processing method using the mobile terminal 6 is executed.

[0030] When the user clicks a program icon representing the program displayed on the touch screen 62, the processor 65 displays a program on the touch screen 62 as shown in FIG. Figure 2 of Figure 2 The initial screen 7 shown in A. The following click operations are all performed by the user. The initial screen 7 includes a virtual Qmin input button 71, a symbol read button 72, and a data send button 73.

[0031] Qmin input button 71 is used to display Figure 2 B shows an input screen 8 for the minimum used discharge flow rate Qmin and the reference rotation speed Nr. The reference rotation speed Nr is used to define the minimum used discharge flow rate Qmin.

[0032] like Figure 3 As shown, the minimum usable discharge capacity q0 obtained by dividing the minimum usable discharge flow rate Qmin by the reference speed Nr defines the lower limit of the usable range of the discharge capacity q when the hydraulic pump 2 is mounted on the machine. The minimum usable discharge capacity q0 may be the same as the mechanical minimum capacity qmin or may be greater than the minimum capacity qmin.

[0033] When the minimum usable discharge capacity q0 is equal to the mechanical minimum capacity qmin, the usable range of the discharge capacity q of the hydraulic pump 2 when it is mounted on the machine is Figure 3 The range of the command current I is Figure 3 On the other hand, when the minimum usable discharge capacity q0 is greater than the mechanical minimum capacity qmin, the usable range of the discharge capacity q when the hydraulic pump 2 is mounted on the machine is Figure 3The range of the command current I is Figure 3 The range D in.

[0034] When the Qmin input button 71 is clicked on the initial screen 7, the processor 65 displays the input screen 8 on the touch screen 62. The input screen 8 includes a first input box 81 for inputting the minimum use discharge flow rate Qmin and a second input box 82 for inputting the reference speed Nr. In the present embodiment, both the first input box 81 and the second input box 82 are of a drop-down type, i.e., a box in which an option is selected from predetermined options. The drop-down type can select multiple digits in groups or select digits one by one.

[0035] When the first input box 81 is clicked in the input screen 8, the processor 65 Figure 2 As shown in FIG. 3 , a selection box 83 listing a plurality of numerical values ​​as the discharge flow rate is displayed below the first input box 81. When a specific numerical value is selected from the selection box 83, the processor 65 displays the selected numerical value in the first input box 81 and stores the selected numerical value as the input minimum discharge flow rate Qmin in the memory 61. Thereafter, when the virtual return button 80 is clicked, the processor 65 returns the display screen of the touch screen 62 to the Figure 2 B shows the input screen 8.

[0036] When the second input box 82 is clicked in the input screen 8, the processor 65 Figure 2 D, a selection box 84 is displayed below the second input box 82, where one or more numerical values ​​are listed for each digit as the rotation speed. However, the selection box 84 may also list multiple numerical values ​​of three or four digits as the rotation speed. When a specific combination of numerical values ​​is selected in the selection box 84, the processor 65 displays the selected combination numerical value in the second input box 82, and saves the selected combination numerical value as the input reference rotation speed Nr in the memory 61. Thereafter, when the virtual return button 80 is clicked, the processor 65 returns the display screen of the touch screen 62 to Figure 2 B shows the input screen 8.

[0037] When the virtual return button 80 is clicked on the input screen 8, the processor 65 returns the display screen of the touch screen 62 to the previous state. Figure 2 A shows the initial screen 7.

[0038] The symbol reading button 72 is used to start reading the symbol 21 displayed on the surface of the hydraulic pump 2. When the symbol reading button 72 is clicked, the processor 65 activates the camera 63.

[0039] When the camera 63 focuses on the symbol 21, the symbol 21 is automatically photographed. When the symbol 21 is photographed by the camera 63, the processor 65 obtains the measured data of the hydraulic pump 2 stored in the symbol 21, and saves the obtained measured data in the memory 61. The acquisition of the characteristic data stored in the symbol 21 by photographing the symbol 21 is the reading of the symbol 21. In addition, as a sequence, the minimum use discharge flow rate Qmin and the reference speed Nr may be input after the symbol 21 is read.

[0040] The data transmission button 73 is used to transmit the measured data, the minimum used discharge flow rate Qmin, and the reference speed Nr of the hydraulic pump 2 stored in the memory 61 to the wireless LAN router 5. When the data transmission button 73 is clicked after the reading of the symbol 21 is completed, the processor 65 causes the wireless communication module 64 to transmit the measured data, the minimum used discharge flow rate Qmin, and the reference speed Nr of the hydraulic pump 2 stored in the memory 61 to the wireless LAN router 5. Thus, the measured data, the minimum used discharge flow rate Qmin, and the reference speed Nr of the hydraulic pump 2 are input to the controller 4 via the wireless LAN router 5.

[0041] The controller 4 electronically corrects the deviation caused by the individual difference in the Iq characteristic of the hydraulic pump 2. Specifically, the controller 4 uses the input measured data to adjust the command current I output to the regulator 3 so as to obtain the set discharge capacity corresponding to the actuator operation signal.

[0042] In addition, in this embodiment, the controller 4 uses the input measured data to determine the minimum use current I0 corresponding to the minimum use discharge flow rate Qmin using a mathematical algorithm such as linear interpolation. In this embodiment, the measured data is an Iq characteristic, so the controller 4 calculates the minimum use discharge capacity q0 by dividing the minimum use discharge flow rate Qmin by the reference speed Nr, and determines the minimum use current I0 corresponding to the minimum use discharge capacity q0 using the measured data representing the actual Iq characteristic.

[0043] As described above, in this embodiment, the controller 4 can determine the minimum use current I0 corresponding to the minimum use discharge flow rate Qmin using the actual measurement data. Therefore, the minimum use discharge flow rate Qmin at the reference rotation speed Nr of the hydraulic pump 2 can be accurately set in the controller 4 .

[0044] <Modification> like Figure 4 As shown, “Qmin input” may be displayed in the initial screen 7 instead of the Qmin input button 71 and a first input box 81 and a second input box 82 may be used, so that the initial screen 7 also serves as the input screen 8 .

[0045] When the controller 4 includes a wireless communication module, the processor 65 may cause the wireless communication module 64 to send the actual measurement data of the hydraulic pump 2 , the minimum used discharge flow rate Qmin, and the reference rotation speed Nr stored in the memory 61 to the controller 4 .

[0046] The symbol 21 may also store the storage destination information of the aforementioned measured data instead of the measured data of the hydraulic pump 2. The storage destination information is, for example, the IP (Internet Protocol) address of the server serving as the storage destination or the URL (Uniform Resource Locator) of a specific level of the server. The symbol 21 storing the storage destination information may be a QR code or a label as in the aforementioned embodiment, or may be a character string.

[0047] When the symbol 21 stores the saved destination information, Figure 5 As shown, when the camera 63 captures the image of the symbol 21, the processor 65 of the mobile terminal 6 acquires the measured data of the hydraulic pump 2 from the server 92 specified by the storage destination information stored in the symbol 21 via the network 91. The subsequent processing is the same as that of the above-mentioned embodiment.

[0048] When the storage location information of the characteristic data is stored at reference numeral 21 , the controller 4 may include a wireless communication module, and the processor 65 may cause the wireless communication module 64 to transmit the actual measurement data of the hydraulic pump 2 , the minimum used discharge flow rate Qmin, and the reference rotation speed Nr to the controller 4 .

[0049] The input screen 8 for the minimum discharge flow rate Qmin and the reference speed Nr can be variously modified. For example, when the hydraulic pump 2 is mounted on a hydraulic excavator, Figure 6 of Figure 6 As shown in A, in the initial screen 7, the Qmin input button 71 displays a description such as "excavator model input or pump model input". When the Qmin input button 71 is clicked, the processor 65 displays on the touch screen 62 Figure 6 B shows the input screen 8.

[0050] In this modification, the input screen 8 includes an excavator model input box 85 and a pump model input box 86. Both the excavator model input box 85 and the pump model input box 86 are used to input the minimum use discharge flow rate Qmin and the reference rotation speed Nr. In addition, the excavator model input box 85 and the pump model input box 86 are both pull-down boxes.

[0051] When the excavator model input box 85 is clicked in the input screen 8, the processor 65 Figure 6As shown in FIG. 6C , a selection box 87 listing a plurality of excavator models is displayed on the touch screen 62. For each excavator model, information on the minimum usable discharge flow rate Qmin and the reference speed Nr is associated and stored in the memory 61. When a specific excavator model is selected from the selection box 87, the processor 65 stores the minimum usable discharge flow rate Qmin and the reference speed Nr corresponding to the selected excavator model as the input minimum usable discharge flow rate Qmin and the reference speed Nr in the memory 61. Thereafter, when the virtual return button 80 is clicked, the processor 65 returns the display screen of the touch screen 62 to the previous state. Figure 6 B shows the input screen 8.

[0052] Alternatively, when the pump model input box 86 is clicked in the input screen 8, the processor 65 performs the following operation: Figure 6 As shown in FIG. 6D , a selection box 88 listing a plurality of pump models is displayed on the touch screen 62. For each pump model, the information of the minimum usable discharge flow rate Qmin and the reference speed Nr is associated and stored in the memory 61. When a specific pump model is selected from the selection box 88, the processor 65 saves the minimum usable discharge flow rate Qmin and the reference speed Nr corresponding to the selected pump model as the input minimum usable discharge flow rate Qmin and the reference speed Nr in the memory 61. Thereafter, when the virtual return button 80 is clicked, the processor 65 returns the display screen of the touch screen 62 to the previous state. Figure 6 B shows the input screen 8.

[0053] When the virtual return button 80 is clicked on the input screen 8, the processor 65 returns the display screen of the touch screen 62 to the previous state. Figure 6 A shows the initial screen 7.

[0054] Alternatively, you can Figure 7 of Figure 7 As shown in FIGS. 7A to 7C , “Qmin input” is displayed in the initial screen 7 instead of the Qmin input button 71 , and an excavator model input box 85 and a pump model input box 86 are used, so that the initial screen 7 also serves as the input screen 8 .

[0055] <Second embodiment> Next, refer to Figure 8 of Figure 8 A and 8B illustrate the mobile terminal 6A of the second embodiment. The mobile terminal 6A of this embodiment is different from the mobile terminal 6 of the first embodiment only in that the minimum use discharge flow rate Qmin and the reference speed Nr are replaced by the minimum use discharge capacity q0. In addition, in this embodiment, the same components as those in the first embodiment are marked with the same symbols, and repeated descriptions are omitted.

[0056] In this embodiment, when the program icon displayed on the touch screen 62 is clicked, the processor 65 of the mobile terminal 6A displays the following on the touch screen 62: Figure 8 The initial screen 7A is shown in FIG. 7A. The initial screen 7A includes a virtual q0 input button 74 , a symbol read button 72 , and a data send button 73 .

[0057] q0 Input button 74 is used to display Figure 8 B shows an input screen 8A for the minimum used discharge volume q0. When the q0 input button 74 is clicked on the initial screen 7, the processor 65 causes the touch screen 62 to display the input screen 8A.

[0058] The input screen 8A includes an input box 75 for inputting the minimum used discharge capacity q0. In the present embodiment, the input box 75 is a drop-down type, that is, a box in which an option is selected from predetermined options. The drop-down type may be a type in which multiple digits are grouped and selected, or a type in which digits are selected one by one.

[0059] When the input box 75 is clicked on the input screen 8A, the processor 65 displays a selection box 76 listing a plurality of numerical values ​​as the discharge capacity of the hydraulic pump 2 below the input box 75. When a specific numerical value is selected from the selection box 76, the processor 65 displays the selected numerical value in the input box 75 and stores the selected numerical value in the memory 61 as the input minimum use discharge capacity q0. Thereafter, when the virtual return button 80 is clicked, the processor 65 returns the display screen of the touch screen 62 to the previous state. Figure 8 A shows the initial screen 7A.

[0060] Similar to the first embodiment, a symbol 21 is displayed on the surface of the hydraulic pump 2, and the symbol 21 stores actual measurement data representing the actual Iq characteristic of the hydraulic pump 2. The symbol 21 is a two-dimensional code or a label.

[0061] When the symbol reading button 72 is clicked on the initial screen 7A, the processor 65 activates the camera 63. When the camera 63 focuses on the symbol 21, the symbol 21 is automatically photographed. When the symbol 21 is photographed by the camera 63, the processor 65 acquires the measured data of the hydraulic pump 2 stored in the symbol 21 and stores the acquired measured data in the memory 61.

[0062] When the data transmission button 73 is clicked on the initial screen 7A, the processor 65 causes the wireless communication module 64 to transmit the actual measurement data of the hydraulic pump 2 and the minimum used discharge capacity q0 stored in the memory 61 to the wireless LAN router 5 .

[0063] In this embodiment, the controller 4 can determine the minimum use current I0 corresponding to the minimum use discharge capacity q0 using the actual measurement data indicating the actual Iq characteristic. Therefore, the minimum use discharge capacity q0 of the hydraulic pump 2 can be accurately set in the controller 4 .

[0064] <Modification> When the controller 4 includes a wireless communication module, the processor 65 may also cause the wireless communication module 64 to send the actual measurement data of the hydraulic pump 2 and the minimum used discharge capacity q0 stored in the memory 61 to the controller 4 .

[0065] The symbol 21 may store the storage destination information of the measured data instead of the measured data of the hydraulic pump 2. The storage destination information is, for example, the IP address of the server serving as the storage destination or the URL of a specific level of the server. The symbol 21 storing the storage destination information may be a QR code or a label, or a character string.

[0066] When the symbol 21 stores the storage destination information, such as Figure 5 As shown, when the image of the symbol 21 is captured by the camera 63 , the processor 65 of the mobile terminal 6A acquires the actual measurement data of the hydraulic pump 2 from the server 92 designated by the storage destination information stored in the symbol 21 via the network 91 .

[0067] Even when reference numeral 21 stores the storage location information of the characteristic data, the controller 4 may include a wireless communication module, and the processor 65 may cause the wireless communication module 64 to transmit the actual measurement data of the hydraulic pump 2 and the minimum used discharge capacity q0 to the controller 4 .

[0068] <Other embodiments> The present disclosure is not limited to the above-described embodiments, and various modifications are possible within the scope not departing from the gist of the present disclosure.

[0069] For example, the measured data may not represent the actual Iq characteristics but may represent the predetermined rotation speed Np and the actual relationship between the command current I and the discharge flow rate Q of the hydraulic pump 2 at the predetermined rotation speed Np, that is, the actual IQ characteristics.

[0070] In the first embodiment, when the measured data represents the specified rotational speed Np and the actual IQ characteristics at the specified rotational speed Np, the controller 4 can also multiply the minimum used discharge flow rate Qmin by Np / Nr to calculate the converted flow rate, and use the measured data to determine the minimum used current I0 corresponding to the converted flow rate.

[0071] In the second embodiment, when the measured data represents the specified speed Np and the actual IQ characteristics at the specified speed Np, the controller 4 can also multiply the minimum used discharge capacity q0 by the specified speed Np to calculate the minimum used discharge flow rate Qmin at the specified speed Np, and use the measured data to determine the minimum used current I0 corresponding to the minimum used discharge flow rate Qmin.

[0072] Furthermore, the determination of the minimum usage current I0 does not necessarily have to be performed by the controller 4, but can also be performed by the processor 65 of the mobile terminal 6, 6A. Specifically, the processor 65 may determine the minimum usage current I0 corresponding to the minimum usage discharge flow rate Qmin or the minimum usage discharge capacity q0 using the measured data, and store the determined minimum usage current I0 in the memory 61. In this case, when the data transmission button 73 is clicked, the processor 65 causes the wireless communication module 64 to transmit the measured data and the minimum usage current I0 stored in the memory 61 to the wireless LAN router 5 or the controller 4.

[0073] Furthermore, the processor 65 of the mobile terminal 6 or 6A does not necessarily need to display the virtual symbol reading button 72 on the touch screen 62 , and may activate the camera 63 when the program icon displayed on the touch screen 62 is clicked.

[0074] Summary As a first form, the present disclosure provides a mobile terminal from a first side, which is a mobile terminal including a processor, a memory, a wireless communication module, a touch screen and a camera. When a symbol displayed on the surface of a hydraulic pump in which the discharge capacity increases as the command current increases is photographed by the camera, the processor obtains measured data representing the actual relationship between the command current and the discharge capacity of the hydraulic pump, or measured data representing the actual relationship between the command current and the discharge flow rate of the hydraulic pump at a specified speed and the specified speed, and saves the data in the memory, displays an input screen for the minimum use discharge flow rate of the hydraulic pump and a reference speed for specifying the minimum use discharge flow rate on the touch screen, saves the minimum use discharge flow rate and the reference speed entered on the input screen in the memory, displays a virtual data sending button on the touch screen, and when the data sending button is clicked, causes the wireless communication module to send the measured data, the minimum use discharge flow rate and the reference speed stored in the memory to a controller for the hydraulic pump or a wireless LAN router connected to the controller.

[0075] According to the above configuration, the controller can determine the minimum use current corresponding to the minimum use discharge flow rate using the actual measurement data. Therefore, the minimum use discharge flow rate at the reference rotation speed of the hydraulic pump can be accurately set in the controller.

[0076] As a second form, the present disclosure provides a mobile terminal from a second side, which is a mobile terminal including a processor, a memory, a wireless communication module, a touch screen and a camera. When a symbol displayed on the surface of a hydraulic pump in which the discharge capacity increases as the command current increases is photographed by the camera, the processor obtains measured data representing the actual relationship between the command current and the discharge capacity of the hydraulic pump, or measured data representing the actual relationship between the command current and the discharge flow rate of the hydraulic pump at a specified speed and the specified speed, and saves the data to the memory, displays an input screen for the minimum usable discharge capacity of the hydraulic pump on the touch screen, saves the minimum usable discharge capacity input on the input screen to the memory, displays a virtual data sending button on the touch screen, and when the data sending button is clicked, causes the wireless communication module to send the measured data and the minimum usable discharge capacity stored in the memory to a controller for the hydraulic pump or a wireless LAN router connected to the controller.

[0077] According to the above configuration, the controller can determine the minimum use current corresponding to the minimum use discharge capacity using the actual measurement data. Therefore, the minimum use discharge capacity of the hydraulic pump can be accurately set in the controller.

[0078] As a third aspect, the present disclosure provides a mobile terminal from a third side, which is a mobile terminal including a processor, a memory, a wireless communication module, a touch screen and a camera. When a symbol displayed on the surface of a hydraulic pump indicating that the discharge capacity increases as the command current increases is photographed by the camera, the processor obtains measured data representing the actual relationship between the command current and the discharge capacity of the hydraulic pump, or measured data representing the actual relationship between the command current and the discharge flow rate of the hydraulic pump at a specified speed and the specified speed, and saves the data to the memory, and displays the minimum use discharge flow rate of the hydraulic pump and the measured data for specifying the minimum use discharge flow rate of the hydraulic pump on the touch screen. An input screen for a reference speed of a minimum usable discharge flow rate is provided, the minimum usable discharge flow rate and the reference speed input on the input screen are saved in the memory, and the minimum usable current corresponding to the input minimum usable discharge flow rate is determined using the actual measured data, and the determined minimum usable current is saved in the memory, and a virtual data sending button is displayed on the touch screen. When the data sending button is clicked, the wireless communication module sends the actual measured data and the minimum usable current saved in the memory to a controller for the hydraulic pump or a wireless LAN router connected to the controller.

[0079] According to the above configuration, the minimum use current corresponding to the minimum use discharge flow rate is determined using the actual measurement data and sent to the controller, so that the minimum use discharge flow rate at the reference rotation speed of the hydraulic pump can be accurately set in the controller.

[0080] As a fourth aspect, the present disclosure provides a mobile terminal from a fourth side, which is a mobile terminal including a processor, a memory, a wireless communication module, a touch screen and a camera. When a symbol displayed on the surface of a hydraulic pump in which the discharge capacity increases as the command current increases is photographed by the camera, the processor obtains measured data indicating an actual relationship between the command current and the discharge capacity of the hydraulic pump, or measured data indicating an actual relationship between the command current and the discharge flow rate of the hydraulic pump at a specified speed and the specified speed, and saves the data in the memory. An input screen for the minimum use discharge capacity of the hydraulic pump is displayed on the touch screen, the minimum use discharge capacity input on the input screen is saved in the memory, and a minimum use current corresponding to the input minimum use discharge capacity is determined using the measured data, and the determined minimum use current is saved in the memory. A virtual data sending button is displayed on the touch screen, and when the data sending button is clicked, the wireless communication module sends the measured data and the minimum use current stored in the memory to a controller for the hydraulic pump or a wireless LAN router connected to the controller.

[0081] According to the above configuration, the minimum use current corresponding to the minimum use discharge capacity is determined using the actual measurement data and sent to the controller, so that the minimum use discharge capacity of the hydraulic pump can be accurately set in the controller.

[0082] As a fifth aspect, in any one of the first to fourth aspects, for example, the measured data may be stored in the symbol, and the processor may acquire the measured data stored in the symbol when the symbol is photographed by the camera.

[0083] As a sixth form, in any one of the first to fourth forms, for example, it may be that the symbol stores the storage destination information of the measured data, and when the symbol is photographed by the camera, the processor obtains the measured data from the server specified by the storage destination information stored in the symbol via the network.

[0084] As a seventh aspect, in any one of the first to sixth aspects, for example, the processor may display a virtual symbol reading button on the touch screen for starting reading of the symbol, and activate the camera when the symbol reading button is clicked.

[0085] As an eighth aspect, the present disclosure provides a data processing method from the fifth aspect, which is a data processing method using a mobile terminal. When a symbol displayed on the surface of a hydraulic pump in which the discharge capacity increases as the command current increases is photographed by a camera of the mobile terminal, measured data representing the actual relationship between the command current and the discharge capacity of the hydraulic pump, or measured data representing the actual relationship between the command current and the discharge flow of the hydraulic pump at a specified speed and the specified speed are obtained and saved in the memory of the mobile terminal, an input screen for the minimum usable discharge flow of the hydraulic pump and a reference speed for specifying the minimum usable discharge flow is displayed on the touch screen of the mobile terminal, the minimum usable discharge flow and the reference speed entered on the input screen are saved in the memory, a virtual data sending button is displayed on the touch screen, and when the data sending button is clicked, the wireless communication module of the mobile terminal sends the measured data, the minimum usable discharge flow and the reference speed stored in the memory to a controller for the hydraulic pump or a wireless LAN router connected to the controller.

[0086] According to the above configuration, the controller can determine the minimum use current corresponding to the minimum use discharge flow rate using the actual measurement data. Therefore, the minimum use discharge flow rate at the reference rotation speed of the hydraulic pump can be accurately set in the controller.

[0087] As a ninth form, the present disclosure provides a data processing method from the sixth side, which is a data processing method using a mobile terminal. When a symbol displayed on the surface of a hydraulic pump in which the discharge capacity increases as the command current increases is photographed by a camera of the mobile terminal, measured data representing the actual relationship between the command current and the discharge capacity of the hydraulic pump, or measured data representing the actual relationship between the command current and the discharge flow rate of the hydraulic pump at a specified speed and the specified speed are obtained and saved in the memory of the mobile terminal, an input screen for the minimum usable discharge capacity of the hydraulic pump is displayed on the touch screen of the mobile terminal, the minimum usable discharge capacity input on the input screen is saved in the memory, a virtual data sending button is displayed on the touch screen, and when the data sending button is clicked, the wireless communication module of the mobile terminal sends the measured data and the minimum usable discharge capacity stored in the memory to a controller for the hydraulic pump or a wireless LAN router connected to the controller.

[0088] According to the above configuration, the controller can determine the minimum use current corresponding to the minimum use discharge capacity using the actual measurement data. Therefore, the minimum use discharge capacity of the hydraulic pump can be accurately set in the controller.

[0089] As a tenth aspect, the present disclosure provides a data processing method from the seventh aspect, which is a data processing method using a mobile terminal. When a symbol displayed on the surface of a hydraulic pump indicating that the discharge capacity increases as the command current increases is captured by a camera of the mobile terminal, measured data representing an actual relationship between the command current of the hydraulic pump and the discharge capacity, or measured data representing an actual relationship between the command current of the hydraulic pump and the discharge flow rate at a specified speed and the specified speed are obtained and saved in a memory of the mobile terminal, and a minimum use discharge flow rate of the hydraulic pump and a value for specifying the minimum use discharge flow rate are displayed on a touch screen of the mobile terminal. Using an input screen for a reference speed of the discharge flow rate, the minimum use discharge flow rate and the reference speed input on the input screen are saved in the memory, and using the measured data, the minimum use current corresponding to the input minimum use discharge flow rate is determined, and the determined minimum use current is saved in the memory, and a virtual data sending button is displayed on the touch screen. When the data sending button is clicked, the wireless communication module of the mobile terminal sends the measured data and the minimum use current saved in the memory to the controller for the hydraulic pump or the wireless LAN router connected to the controller.

[0090] According to the above configuration, the minimum use current corresponding to the minimum use discharge flow rate is determined using the actual measurement data and sent to the controller, so that the minimum use discharge flow rate at the reference rotation speed of the hydraulic pump can be accurately set in the controller.

[0091] As an eleventh aspect, the present disclosure provides a data processing method from the eighth aspect, which is a data processing method using a mobile terminal. When a symbol displayed on the surface of a hydraulic pump in which the discharge capacity increases as the command current increases is photographed by a camera of the mobile terminal, measured data representing an actual relationship between the command current and the discharge capacity of the hydraulic pump, or measured data representing an actual relationship between the command current and the discharge flow rate of the hydraulic pump at a specified speed and the specified speed are obtained and saved in a memory of the mobile terminal, an input screen for a minimum usable discharge capacity of the hydraulic pump is displayed on a touch screen of the mobile terminal, the minimum usable discharge capacity input on the input screen is saved in the memory, and a minimum usable current corresponding to the input minimum usable discharge capacity is determined using the measured data, the determined minimum usable current is saved in the memory, a virtual data sending button is displayed on the touch screen of the mobile terminal, and when the data sending button is clicked, the wireless communication module of the mobile terminal sends the measured data and the minimum usable current stored in the memory to a controller for the hydraulic pump or a wireless LAN router connected to the controller.

[0092] According to the above configuration, the minimum use current corresponding to the minimum use discharge capacity is determined using the actual measurement data and sent to the controller, so that the minimum use discharge capacity of the hydraulic pump can be accurately set in the controller.

[0093] As a twelfth aspect, in any one of the eighth to eleventh aspects, for example, the measured data may be stored in the symbol, and when the symbol is photographed by the camera, the measured data stored in the symbol may be acquired.

[0094] As a thirteenth aspect, in any one of the eighth to eleventh aspects, for example, the symbol may store storage destination information of the measured data, and when the symbol is photographed by the camera, the measured data is acquired from a server specified by the storage destination information stored in the symbol via a network.

[0095] As a fourteenth aspect, in any one of the eighth to thirteenth aspects, for example, a virtual symbol reading button for starting reading of the symbol may be displayed on the touch screen, and the camera may be started when the symbol reading button is clicked.

Claims

1. A mobile terminal, characterized in that: It is a mobile terminal including a processor, a memory, a wireless communication module, a touch screen and a camera. The processor When a symbol displayed on the surface of a hydraulic pump indicating that the discharge capacity increases as the command current increases is captured by the camera, measured data indicating an actual relationship between the command current and the discharge capacity of the hydraulic pump, or measured data indicating an actual relationship between the command current and the discharge flow rate of the hydraulic pump at a specified speed and the specified speed are acquired and stored in the memory, displaying an input screen for a minimum usable discharge flow rate of the hydraulic pump and a reference speed for defining the minimum usable discharge flow rate on the touch screen, and storing the minimum usable discharge flow rate and the reference speed input on the input screen in the memory, A virtual data sending button is displayed on the touch screen. When the data sending button is clicked, the wireless communication module sends the measured data, the minimum discharge flow rate and the reference speed stored in the memory to the controller for the hydraulic pump or the wireless LAN router connected to the controller.

2. A mobile terminal, characterized in that: It is a mobile terminal including a processor, a memory, a wireless communication module, a touch screen and a camera. The processor When a symbol displayed on the surface of a hydraulic pump indicating that the discharge capacity increases as the command current increases is captured by the camera, measured data indicating an actual relationship between the command current and the discharge capacity of the hydraulic pump, or measured data indicating an actual relationship between the command current and the discharge flow rate of the hydraulic pump at a specified speed and the specified speed are acquired and stored in the memory, displaying an input screen for the minimum used discharge capacity of the hydraulic pump on the touch screen, and storing the minimum used discharge capacity input on the input screen in the memory, A virtual data sending button is displayed on the touch screen. When the data sending button is clicked, the wireless communication module sends the measured data and the minimum used discharge capacity stored in the memory to the controller for the hydraulic pump or the wireless LAN router connected to the controller.

3. A mobile terminal, characterized in that: It is a mobile terminal including a processor, a memory, a wireless communication module, a touch screen and a camera. The processor When a symbol displayed on the surface of a hydraulic pump indicating that the discharge capacity increases as the command current increases is captured by the camera, measured data indicating an actual relationship between the command current and the discharge capacity of the hydraulic pump, or measured data indicating an actual relationship between the command current and the discharge flow rate of the hydraulic pump at a specified speed and the specified speed are acquired and stored in the memory, displaying an input screen of a minimum usable discharge flow rate of the hydraulic pump and a reference speed for defining the minimum usable discharge flow rate on the touch screen, saving the minimum usable discharge flow rate and the reference speed input on the input screen in the memory, determining a minimum usable current corresponding to the input minimum usable discharge flow rate using the measured data, and saving the determined minimum usable current in the memory, A virtual data sending button is displayed on the touch screen. When the data sending button is clicked, the wireless communication module sends the measured data and the minimum usage current stored in the memory to the controller for the hydraulic pump or the wireless LAN router connected to the controller.

4. A mobile terminal, characterized in that: It is a mobile terminal including a processor, a memory, a wireless communication module, a touch screen and a camera. The processor When a symbol displayed on the surface of a hydraulic pump indicating that the discharge capacity increases as the command current increases is captured by the camera, measured data indicating an actual relationship between the command current and the discharge capacity of the hydraulic pump, or measured data indicating an actual relationship between the command current and the discharge flow rate of the hydraulic pump at a specified speed and the specified speed are acquired and stored in the memory, displaying an input screen for the minimum use discharge capacity of the hydraulic pump on the touch screen, saving the minimum use discharge capacity input on the input screen in the memory, determining a minimum use current corresponding to the input minimum use discharge capacity using the actual measurement data, and saving the determined minimum use current in the memory, A virtual data sending button is displayed on the touch screen. When the data sending button is clicked, the wireless communication module sends the measured data and the minimum usage current stored in the memory to the controller for the hydraulic pump or the wireless LAN router connected to the controller.

5. The mobile terminal according to any one of claims 1 to 4, characterized in that: The measured data is stored in the symbol, When the symbol is photographed by the camera, the processor obtains the measured data stored in the symbol.

6. The mobile terminal according to any one of claims 1 to 4, characterized in that: The symbol stores the storage destination information of the measured data. When the symbol is imaged by the camera, the processor acquires the measured data from a server specified by the storage destination information stored in the symbol via a network.

7. The mobile terminal according to any one of claims 1 to 4, characterized in that: The processor displays a virtual symbol reading button for starting reading of the symbol on the touch screen, and activates the camera when the symbol reading button is clicked.

8. A data processing method, characterized in that: is a data processing method using a mobile terminal, When a symbol displayed on the surface of a hydraulic pump indicating that the discharge capacity increases as the command current increases is captured by the camera of the mobile terminal, measured data indicating an actual relationship between the command current and the discharge capacity of the hydraulic pump, or measured data indicating an actual relationship between the command current and the discharge flow rate of the hydraulic pump at a specified speed and the specified speed are obtained and saved in a memory of the mobile terminal, displaying an input screen for the minimum usable discharge flow rate of the hydraulic pump and a reference speed for defining the minimum usable discharge flow rate on a touch screen of the mobile terminal, and saving the minimum usable discharge flow rate and the reference speed input on the input screen in the memory, A virtual data sending button is displayed on the touch screen. When the data sending button is clicked, the wireless communication module of the mobile terminal sends the measured data, the minimum discharge flow rate and the reference speed stored in the memory to the controller for the hydraulic pump or the wireless LAN router connected to the controller.

9. A data processing method, characterized in that: is a data processing method using a mobile terminal, When a symbol displayed on the surface of a hydraulic pump indicating that the discharge capacity increases as the command current increases is captured by the camera of the mobile terminal, measured data indicating an actual relationship between the command current and the discharge capacity of the hydraulic pump, or measured data indicating an actual relationship between the command current and the discharge flow rate of the hydraulic pump at a specified speed and the specified speed are obtained and saved in a memory of the mobile terminal, displaying an input screen for the minimum used discharge capacity of the hydraulic pump on the touch screen of the mobile terminal, and storing the minimum used discharge capacity input on the input screen in the memory, A virtual data sending button is displayed on the touch screen. When the data sending button is clicked, the wireless communication module of the mobile terminal sends the measured data and the minimum used discharge capacity stored in the memory to the controller for the hydraulic pump or the wireless LAN router connected to the controller.

10. A data processing method, characterized in that: is a data processing method using a mobile terminal, When a symbol displayed on the surface of a hydraulic pump indicating that the discharge capacity increases as the command current increases is captured by the camera of the mobile terminal, measured data indicating an actual relationship between the command current and the discharge capacity of the hydraulic pump, or measured data indicating an actual relationship between the command current and the discharge flow rate of the hydraulic pump at a specified speed and the specified speed are obtained and saved in a memory of the mobile terminal, displaying an input screen of the minimum use discharge flow rate of the hydraulic pump and a reference speed for defining the minimum use discharge flow rate on the touch screen of the mobile terminal, saving the minimum use discharge flow rate and the reference speed input on the input screen to the memory, and using the measured data to determine the minimum use current corresponding to the input minimum use discharge flow rate, and saving the determined minimum use current to the memory, A virtual data sending button is displayed on the touch screen. When the data sending button is clicked, the wireless communication module of the mobile terminal sends the measured data and the minimum usage current stored in the memory to the controller for the hydraulic pump or the wireless LAN router connected to the controller.

11. A data processing method, characterized in that: is a data processing method using a mobile terminal, When a symbol displayed on the surface of a hydraulic pump indicating that the discharge capacity increases as the command current increases is captured by the camera of the mobile terminal, measured data indicating an actual relationship between the command current and the discharge capacity of the hydraulic pump, or measured data indicating an actual relationship between the command current and the discharge flow rate of the hydraulic pump at a specified speed and the specified speed are obtained and saved in a memory of the mobile terminal, displaying an input screen for the minimum use discharge capacity of the hydraulic pump on the touch screen of the mobile terminal, saving the minimum use discharge capacity input on the input screen in the memory, determining a minimum use current corresponding to the input minimum use discharge capacity using the measured data, and saving the determined minimum use current in the memory, A virtual data sending button is displayed on the touch screen of the mobile terminal. When the data sending button is clicked, the wireless communication module of the mobile terminal sends the measured data and the minimum usage current stored in the memory to the controller for the hydraulic pump or the wireless LAN router connected to the controller.

12. The data processing method according to any one of claims 8 to 11, characterized in that: The measured data is stored in the symbol, When the symbol is photographed by the camera, the measured data stored in the symbol is acquired.

13. The data processing method according to any one of claims 8 to 11, characterized in that: The symbol stores the storage destination information of the measured data. When the symbol is photographed by the camera, the measured data is acquired from a server designated by the storage destination information stored in the symbol via a network.

14. The data processing method according to any one of claims 8 to 11, characterized in that: A virtual symbol reading button for starting reading of the symbol is displayed on the touch screen, and the camera is activated when the symbol reading button is clicked.

Images