Hydraulic Control System

Abstract

To provide an inexpensive hydraulic device control system capable of wirelessly controlling a hydraulic device using general-purpose devices without using expensive devices such as a PLC and a touch panel. [Solution] The terminal device 300 is a general-purpose terminal device with wireless communication function. The terminal device 300 has a terminal-side display device to which information can be input, acquires operation screen information 215 for operating an electric motor 130 and a directional control valve 150 from a general-purpose microcomputer 210 with wireless communication function via wireless communication, and displays an operation screen on the terminal-side display device based on the operation screen information 215. The terminal device 300 accepts information input to the displayed operation screen from a user, and transmits the information input to the operation screen to the microcomputer 210 with wireless communication function via wireless communication as control information 301, and causes the microcomputer 210 with wireless communication function to control the electric motor 130 and the directional control valve 150 in accordance with the control information 301.

Description

[Technical field]

[0001] The present disclosure relates to a hydraulic device control system that wirelessly controls a hydraulic device using a terminal device. [Background technology]

[0002] In conventional hydraulic device control systems, programmable control devices such as PLCs (Programmable Logic Controllers) are often used, and input devices such as touch panels are often used to input data to the programmable control devices.

[0003] For example, in Patent Document 1, as shown in Figure 2, a hydraulic cylinder is controlled by a PLC. Specifically, an output control unit of the PLC generates a control signal for the hydraulic cylinder and outputs it to a crane via an output interface (paragraph

[0082] ). Also, in Patent Document 1, a touch panel can be used as an input device (Figure 2) to the PLC (paragraph

[0031] ). [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Patent No. 7477034 Summary of the Invention [Problem to be solved by the invention]

[0005] Conventionally, when a programmable control device such as a PLC is used to control a hydraulic system and an input device such as a touch panel is used to input data to the PLC, there is a problem that costs increase because the PLC and touch panel are expensive devices.

[0006] An object of the present disclosure is to provide an inexpensive hydraulic unit control system capable of wirelessly controlling a hydraulic unit using general-purpose devices, without using expensive devices such as a PLC and a touch panel. [Means for solving the problem]

[0007] The hydraulic device control system according to the present disclosure comprises: A hydraulic device including a hydraulic circuit, a hydraulic pump disposed in the hydraulic circuit, and an electric motor that drives the hydraulic pump; A general-purpose microcomputer with wireless communication capability, which is a computer that stores a hydraulic control program and operates by executing the hydraulic control program; a general-purpose terminal device with wireless communication function, which has a display device capable of displaying and inputting information, acquires operation screen information for operating the electric motor from the microcomputer with wireless communication function via wireless communication, and displays an operation screen for operating the electric motor on the display device based on the operation screen information; Equipped with The terminal device with wireless communication function, The device accepts information input to the operation screen displayed on the display device from a user of the terminal device with wireless communication function, and when the information is input to the operation screen, the information input to the operation screen is transmitted as control information to the microcomputer with wireless communication function via wireless communication, and causes the microcomputer with wireless communication function to control the electric motor in accordance with the control information. Effect of the Invention

[0008] The present disclosure provides a hydraulic device control system that controls a hydraulic device via a general-purpose terminal device with a communication function that replaces a touch panel and controls a general-purpose microcomputer with a communication function that replaces a PLC. Thus, the present disclosure provides a low-cost hydraulic device control system that can wirelessly control a hydraulic device. [Brief description of the drawings]

[0009] [Figure 1] FIG. 1 is a system configuration diagram of a hydraulic device control system 1000 according to a first embodiment. [Diagram 2]FIG. 1 is a diagram of the first embodiment, showing a form in which a terminal device 300 and a microcomputer 210 communicate with each other via a network 400. [Diagram 3] FIG. 1 is a diagram of a first embodiment, showing a configuration of a hydraulic device 100. [Figure 4] FIG. 1 is a diagram of the first embodiment, showing a simplified hydraulic cylinder 160. [Diagram 5] FIG. 2 is a diagram showing the hardware configuration of a microcomputer 210 and a terminal device 300 according to the first embodiment. [Figure 6] FIG. 2 is a sequence diagram showing the operations of the microcomputer 210 and the terminal device 300 according to the first embodiment. [Figure 7] FIG. 5 is a diagram according to the first embodiment, showing a manual mode operation screen 510. [Figure 8] FIG. 5 is a diagram showing a cycle mode operation screen 520 in the first embodiment. [Figure 9] FIG. 5 is a diagram showing a setting screen 530 according to the first embodiment. [Figure 10] FIG. 2 is a diagram of the first embodiment, showing a hydraulic device 100 that does not include a directional control valve 150 as a modified example. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0010] In the description of the embodiments and the drawings, the same elements and corresponding elements are given the same reference numerals. Descriptions of elements given the same reference numerals are omitted or simplified as appropriate. In the following embodiments, "unit" may be read as "circuit", "process", "step", "processing" or "circuitry" as appropriate.

[0011] Embodiment 1 A hydraulic device control system 1000 according to a first embodiment will be described with reference to FIGS.

[0012] ***Configuration Description*** FIG. 1 is a system configuration diagram of a hydraulic device control system 1000. The hydraulic device control system 1000 includes a hydraulic device 100, a drive control system 200, and a general-purpose terminal device 300 with a communication function (hereinafter referred to as the terminal device 300). The drive control system 200 includes a general-purpose microcomputer 210 with a communication function (hereinafter referred to as the microcomputer 210), a power supply 220 for the microcomputer 210, and a voltage return IF (InterFace) board 230. The detailed configurations of the hydraulic device 100, the drive control system 200, and the terminal device 300 will be described later with reference to FIG. 3 and FIG. 5. In FIG. 1, the terminal device 300 and the microcomputer 210 are directly connected to each other via WiFi. (Registered Trademark) Upon receiving an instruction from the terminal device 300, the microcomputer 210 controls the hydraulic device 100. The configuration of the hydraulic device 100 will be described later with reference to FIG. 2 shows a form in which the terminal device 300 and the microcomputer 210 communicate with each other via a network 400. The network 400 is, for example, the Internet, but is not limited to the Internet. It may be a network such as a LAN (registered trademark) or a WAN. The terminal device 300 uses a WiFi router 380, and the microcomputer 210 uses a WiFi router 280 to communicate with each other via the network 400.

[0013] Fig. 3 shows the configuration of the hydraulic device 100. In Fig. 3, it is assumed that the piston rod 163 (Fig. 4) of the hydraulic cylinder 160 moves forward. 4 is a simplified diagram of the hydraulic cylinder 160, and (a) to (c) show the state in which the hydraulic cylinder 160 advances, i.e., the forward state of the piston rod 163. (a) of FIG. 4 shows the state in which the piston rod 163 is located at the rear end, FIG. 4(b) shows a state in which the piston rod 163 is located between the rear end and the forward end, and FIG. 4(c) shows a state in which the piston rod 163 is located at the forward end. The limit switch 161 detects the rear end position, and the limit switch 162 detects the forward end position.

[0014] 3, the hydraulic device 100 has a hydraulic circuit 101, a hydraulic pump 140 arranged in the hydraulic circuit 101, an electric motor 130 that drives the hydraulic pump 140, and a directional control valve 150 that is a solenoid valve arranged in the hydraulic circuit 101. Specifically, it is as follows. The hydraulic device 100 includes an inverter 110, an AC 100V power supply 120 connected to the inverter 110, an electric motor 130 receiving power from the inverter 110, a hydraulic pump 140 driven by the electric motor 130, a suction pressure regulator 180 connected to the suction side of the hydraulic pump 140, a directional control valve 150 connected to the hydraulic pump 140, a hydraulic cylinder 160 connected to the directional control valve 150, a limit switch 161 for detecting the reverse end, a limit switch 162 for detecting the forward end, and pressure sensors 171, 172 for detecting the inflow pressure during forward travel and the outflow pressure during reverse travel. In Fig. 3, the solid arrow in the directional control valve 150 indicates the flow path of the hydraulic oil in the forward travel state. The directional control valve 150 is a solenoid valve. The hydraulic device 100 includes at least a housing in which the hydraulic pump 140 is housed, and this housing is coated with a heat dissipating paint.

[0015] In Fig. 3, if hydraulic pump 140 is taken as a starting reference, high-pressure hydraulic oil 10 (Fig. 4) flows out of hydraulic pump 140 and flows into directional control valve 150, then flows out of directional control valve 150 and flows into hydraulic cylinder 160. Low-pressure hydraulic oil 20 flows out of hydraulic cylinder 160 and flows into directional control valve 150, then flows out of directional control valve 150 and flows into hydraulic pump 140 via suction side pressure regulator 180. Hydraulic pump 140, directional control valve 150, hydraulic cylinder 160 and suction side pressure regulator 180 are connected by hydraulic piping to form hydraulic circuit 101.

[0016] 5 shows the hardware configuration of the microcomputer 210 and the terminal device 300. The microcomputer 210 includes, as hardware, a processor 211, a hydraulic side main memory device 212, a hydraulic side auxiliary memory device 213, and a hydraulic side communication device 214. The processor 211 is connected to the hardware, such as the hydraulic side main memory device 212, via a signal line 219. The microcomputer 210 is a computer that stores a hydraulic side control program 213A and operates by executing the hydraulic side control program 213A. The hydraulic side control program 213A is publicly available and can be downloaded from a specific website. The processor 211 includes a hydraulic side control unit 211A as a functional element. The functions of the microcomputer 210 are realized by the hydraulic side control unit 211A.

[0017] The terminal device 300 includes, as hardware, a processor 311, a terminal-side main memory device 312, a terminal-side auxiliary memory device 313, a terminal-side communication device 314, and a terminal-side display device 315. The processor 311 is connected to the terminal-side main memory device 312 and other hardware via a signal line 319. The processor 311 includes a terminal-side control unit 311A ​​as a functional element. The functions of the terminal device 300 are realized by the terminal-side control unit 311A.

[0018] ***Explanation of Operation*** The operation of the hydraulic device control system 1000 will be described with reference to Figures 6 to 9. The operation of the microcomputer 210 of the hydraulic device control system 1000 corresponds to a hydraulic side control method. The operation of the hydraulic side control method corresponds to processing by a hydraulic side control program 213A described below. The operation of the terminal device 300 of the hydraulic device control system 1000 corresponds to a terminal side control method. The operation of the terminal side control method corresponds to processing by a terminal side control program 313A described below. The browser 313B is incorporated as part of the terminal side control program 313A (Figure 5).

[0019] 6 is a sequence diagram showing the operations of the microcomputer 210 and the terminal device 300. FIG 6 corresponds to FIG 1 or FIG 2. 7 shows a first operation screen which terminal device 300 calls from microcomputer 210 and displays on terminal side display device 315. The first, second and third operation screens will be described below. The first operation screen is manual mode operation screen 510, the second operation screen is cycle mode operation screen 520, and the third input screen is setting screen 530. The manual mode operation screen 510 , the cycle mode operation screen 520 , and the setting screen 530 are all operation screens 500 .

[0020] Control of the hydraulic device 100 using the manual mode operation screen 510 will be described with reference to FIG. The terminal device 300 has a terminal-side display device 315 capable of displaying and inputting information. The terminal device 300 transmits a call command to the microcomputer 210 (S11) and acquires operation screen information 215 for operating the electric motor 130 and the directional control valve 150 from the microcomputer 210 via wireless communication (step S12). The terminal device 300 displays an operation screen 500 for operating the electric motor 130 and the directional control valve 150 on the terminal-side display device 315 based on the operation screen information 215 (step S13). The terminal device 300 accepts information input from the user 600 of the terminal device 300 to the operation screen 500 displayed on the terminal side display device 315 (S13), and when information is input to the operation screen 500, transmits the information input to the operation screen 500 as control information 301 to the microcomputer 210 via wireless communication (S14), and causes the microcomputer 210 to control the electric motor 130 and the directional control valve 150 in accordance with the control information 301 (S15).

[0021] The terminal side control unit 311A ​​of the terminal device 300 executes the general-purpose browser 313B to obtain the operation screen information 215 (S11, S12), display the operation screen 500 on the terminal side display device 315 (S13), accept information input to the operation screen 500 (S13), and transmit the control information 301 to the microcomputer 210 with wireless communication function (S15). Specifically, the process is as follows.

[0022] <Step S11> In step S11, the browser 313B wirelessly transmits a call command via WiFi to the microcomputer 210 to request calling of the operation screen information 215 for displaying each of the manual mode operation screen 510, the cycle mode operation screen 520, and the setting screen 530.

[0023] <Step S12> In step S 12 , the operation screen information 215 is acquired from the microcomputer 210 .

[0024] <Step S13> In step S13, browser 313B displays manual mode operation screen 510 shown in Fig. 7 on terminal side display device 315, and accepts input from user 600 to manual mode operation screen 510. Display of manual mode operation screen 510 is set as a default. In step S13, browser 313B interactively accepts information input to operation screen 500.

[0025] The manual mode operation screen 510 will be described with reference to Fig. 7. The manual mode operation screen 510 is an input screen for manually operating the hydraulic device 100.

[0026] Lined up horizontally at the top of the manual mode operation screen 510 are a button 510A for displaying the manual mode operation screen 510, a button 520A for displaying the cycle mode operation screen 520, and a button 530A for displaying the setting screen 530. For example, when button 520A is pressed, the screen switches from the manual mode operation screen 510 to the cycle mode operation screen 520 in FIG. Fig. 8 shows cycle mode operation screen 520, which is an operation screen in which a series of steps constitute one cycle. The area below horizontally aligned buttons 510A, 520A, and 530A is divided into four. Fig. 8 will be described later.

[0027] The upper left is an area for inputting the rotation speed of the electric motor 130. In Fig. 7, 1500 rpm is input as speed command 1, and 800 rpm is input as speed command 2. By continuing to press either speed command 1 or speed command 2, the electric motor 130 rotates at the rotation speed of the speed command. In Fig. 7, speed command 1 is being pressed.

[0028] The upper right is a display area for the pressure transmitted from microcomputer 210, not an input area. A-side pressure and B-side pressure refer to the pressure on the A side and B side in Fig. 4. A-side pressure is the pressure on the rear end side of piston portion 164 of piston rod 163. B-side pressure is the pressure on the forward end side of piston portion 164 of piston rod 163.

[0029] The lower left is an area for intermittent operation of the directional control valve 150. By continuing to press either the displayed A1 switch 511 or the B1 switch 512, hydraulic oil flows into side A or side B in Fig. 4. While the A1 switch 511 is being pressed, hydraulic oil flows into side A in Fig. 4, and while the B1 switch 512 is being pressed, hydraulic oil flows into side B. In Fig. 7, the A1 switch 511 is being pressed.

[0030] The lower right is the area for continuous operation of the directional control valve 150. When either the "continuous operation command" or the "push stop command" is pressed (ON) once, the other turns OFF. A1 switch 513 and B1 switch 514 are the same as A1 switch 511 and B1 switch 512, and correspond to the inflow of hydraulic oil to the A side and the inflow to the B side. By default, the "push stop command" is ON. The "continuous operation command" causes hydraulic oil to flow into the A side or the B side. The A side inflow or the B side inflow is selected with the A1 switch 513 and the B1 switch 514. With the "push stop command", the valve of the directional control valve 150 is closed. The lower left and lower right are exclusive operations, and only one of them can be operated.

[0031] <Screen switching at step S13> When the user presses button 520A at the top of manual mode operation screen 510, the manual mode operation screen 510 being displayed is switched to a cycle mode operation screen 520. The cycle mode operation screen 520 in Fig. 8 will be explained. The cycle mode operation screen 520 in Fig. 8 is a mode in which the processes from step (1) to step (7) constitute one cycle and multiple cycles are repeated.

[0032] Buttons 510A, 520A, and 530A are lined up horizontally at the top of cycle mode operation screen 520. Directly below buttons 510A, 520A, and 530A lined up horizontally, the words "This is the cycle mode operation screen" are displayed. A "Save settings" button is also displayed. When the user presses the "Save settings" button, the contents of cycle mode operation screen 520 are saved. Below the "Save settings" button are displayed the setting targets for cycle mode. In FIG. 8, the setting target is "forward side setting" which moves piston rod 163 forward. In "forward side setting", piston rod 163 moves forward in the forward direction in FIG. 4.

[0033] (Step (1) Area) The step (1) area is the setting area for the "delay timer." The "delay timer" setting is the idle time before step (1) in cycle mode starts. 0 sec indicates that the idle time is set to 0 sec (starts immediately). As shown in the step (1) area, the operation delay time, which is the idle time, can be set in the range of 0 to 99.9 sec. Pressing the "question mark" displays an explanation of that step.

[0034] (Step (2) Area) The area of ​​step (2) is the setting area of ​​the "forward movement command." The "forward movement command" is a command to "move the piston rod 163 forward" in FIG. The "(2)a forward rotation speed" in the step (2) area is an area for setting the rotation speed of the electric motor 130 at the start of forward movement. The rotation speed can be set between 0 and 3000 rpm. "(2)b Acceleration time" indicates the time from the start of "forward movement" to the rotation speed specified in (2)a. "(2)b Acceleration time" can be set between 0 and 99.9 seconds. Although "(2)b Acceleration time" is set to 0 seconds, 0 seconds indicates that the rotation speed should immediately reach 1500 rpm in (2)a from the start of "forward movement."

[0035] (Step (3) Area) The area of ​​step (3) is a setting area for "forward deceleration command condition." Forward movement starts in (a) of Fig. 4, and from (b) of Fig. 4, the state of the electric motor 130 set in step (2) transitions to a deceleration state. The "forward deceleration command condition" of step (3) is a setting area for the start of the deceleration state corresponding to (b) of Fig. 4.

[0036] (3) a is an area for setting the deceleration-induced operation that causes forward deceleration. The deceleration-induced operation can be set to either 0 or 1. "0" means that the deceleration is caused by limit switch operation. "1" means that the deceleration is caused by timer operation. The hydraulic control unit 211A of the microcomputer 210 has a timer function.

[0037] (3)b is the monitoring time or switch. The setting range is 0 to 99.9 seconds. The monitoring time corresponds to the case where (3)a is "0" (limit switch operation), and the alarm stops if the limit switch does not turn ON within the monitoring time (within the set time). The switch corresponds to the case where (3)a is "1" (timer operation), and after the set time of (3)b has elapsed, the rotation speed switches from (2)a to the decelerated rotation speed of (3)c. Note that if (3)a is "1" and (3)b is "0 seconds", there is no deceleration.

[0038] (3)c is the rotation speed of the electric motor 130 at which the rotation speed is switched from (2)a as a deceleration, and the setting range is 0 to 3000 rpm.

[0039] The deceleration time of (3)d is set to the time required for the rotation speed to change from (2)a to the decelerated rotation speed of (3)c. The shorter the deceleration time of (3)d, the more rapid the deceleration. If the deceleration load is large, the deceleration time is lengthened. The setting range of the deceleration time is 0 to 99.9 seconds.

[0040] (Step (4) Area) In step (3), the first deceleration is performed, and in step (4), the second deceleration is performed, which is deceleration toward the forward end. Step (4) sets the conditions under which the second deceleration is performed. Step (5) is a setting area for how the deceleration is performed when the conditions for the second deceleration in step (4) are satisfied. The area of ​​step (4) is a setting area for the "forward end deceleration instruction condition." The "forward end deceleration instruction condition" is a condition related to the deceleration of the piston rod 163 when it reaches the forward end.

[0041] (4)a is the area for setting the deceleration triggering action that causes deceleration. In "0: Pressure reaching action (sensor)" in (4)a, deceleration occurs when the hold switching pressure in (4)b described below is reached after step (3) is completed. In "1: Timer action" in (4)a, deceleration occurs when the time in (4)c described below has elapsed after step (3) is completed. In "2: Pressure Reached (Full Range)" of (4)a, decelerate if the pressure reaches (4)b between steps (1) and (4).

[0042] (4)b indicates the hold switching pressure. This pressure corresponds to the threshold value of the reached pressure between "0: Pressure reached operation (sensor)" and "2: Pressure reached (full range)" in (4)a. The setting range is 0 to 25.0 MPa.

[0043] (4)c is the setting area for the monitoring time or holding time. When "0: Pressure reach operation (sensor)" or "2: Pressure reach (full range)" is set in (4)a, the time in (4)c becomes the pressure monitoring time, and if pressure does not rise after the monitoring time has elapsed, an alarm is generated. On the other hand, if pressure rises within the monitoring time, the condition is met and the holding condition in step (5) is reached.

[0044] In addition, in (4)c, if (4)a is "1: Timer action", the speed will decelerate after the time in 4(c) has elapsed (this is the holding condition for step (5)). The setting range is 0 to 99.9 seconds.

[0045] (Step (5) Area) Step (5) is an area for setting the condition for maintaining the forward end deceleration state, and is an area for setting how the second deceleration is performed when the deceleration command condition in step (4) is satisfied, as described above.

[0046] (5)a is the region of the holding rotation speed. In FIG. 8, it is 500 rpm, which is the same as (3)c in the first deceleration. This means that (5)a in the second deceleration maintains the 500 rpm of (3)c. The setting range is 0 to 3000 rpm. (5)b's holding switching time is the time it takes to go from the decelerated rotation speed of (3)c to the holding rotation speed of (5)a. The setting range is 0 to 99.9 sec.

[0047] Step (6) is the region for maintaining the deceleration state at the forward end. Step (6) is the region for setting the time for maintaining the rotation speed of step (5)a. The setting range is 0 to 99.9 sec.

[0048] One cycle ends in step (7).

[0049] (Step S14) Returning to Fig. 6, the description will be continued. In step S14, the terminal-side control unit 311A ​​transmits the control information 301 to the microcomputer 210 by wireless communication using the terminal-side communication device 314 via WiFi.

[0050] Here, "control information 301" has the following meaning: In the case of the manual mode operation screen 510 in Fig. 7, the control information 301 is (a) and (b). (a) Speed ​​command while "Motor speed command" is pressed. (b) An instruction to the directional control valve 150 in the form of either a "solenoid valve interlocking push-down operation command" or a "solenoid valve interlocking continuous operation command." In the case of cycle mode operation screen 520 in Fig. 8, control information 301 is setting data for each step of cycle mode operation screen 520. Control information 301 is control information for electric motor 130 and directional control valve 150. Since cycle mode operation screen 520 in Fig. 8 is "forward side setting," "forward" is control information 301 for using the forward port of directional control valve 150. Fig. 9 shows a setting screen 530. Basic setting information is input into the setting screen 530. In the case of the setting screen 530 of Fig. 9, the control information 301 is data set as the basic rotation speed.

[0051] (Step S15) In step S15, the hydraulic side control section 211A receives the control information 301 by WiFi via the hydraulic side communication device 214. The hydraulic side control section 211A controls the electric motor 130 and the directional control valve 150 in accordance with the control information 301.

[0052] (Step S16) In step S16, the hydraulic side control unit 211A transmits a notification of the end of control via WiFi through the hydraulic side communication device 214. The browser 313B receives the notification of the end of control via WiFi through the terminal side communication device 314. Upon receiving the notification of the end of control from the browser 313B, the control of the hydraulic device 100 by the terminal device 300 via the microcomputer 210 ends.

[0053] A cycle is another operation screen in which a series of steps constitute one cycle. mode Operation screen 5 2 0 by the operation of the user 600.

[0054] <Modification> Fig. 10 shows a modified example of a hydraulic device control system 1000. In the modified example of Fig. 10, the hydraulic device 100 does not have a directional control valve 150, which is a solenoid valve. Since the hydraulic circuit 101 does not have a directional control valve 150, the microcomputer controls the electric motor 130. The direction in which the hydraulic oil flows changes when the electric motor 130 switches its rotation direction. When the electric motor 130 rotates in one direction, the hydraulic oil flows in direction 141, and when the electric motor 130 rotates in the other direction, the hydraulic oil flows in direction 142. 10, a suction side pressure regulator connection circuit 181 is provided. The suction side pressure regulator connection circuit 181 adjusts the suction side pressure regulator 180 to be on the suction side of the hydraulic pump 140 according to the flow directions 141 and 142 of the hydraulic oil.

[0055] The hydraulic device control system 1000 of FIG. 10 has the following configuration. The hydraulic device control system 1000 includes a hydraulic device 100, a microcomputer 210, and a terminal device 300. The hydraulic device 100 includes a hydraulic circuit 101, a hydraulic pump 140 arranged in the hydraulic circuit 101, and an electric motor 13 that drives the hydraulic pump 140. The microcomputer 210 is a computer that stores a hydraulic control program 213A, and operates by executing the hydraulic control program 213A. The terminal device 300 includes a terminal display device 315 that is capable of displaying and inputting information. The terminal device 300 obtains operation screen information for operating the electric motor 130 from the microcomputer 210 by wireless communication, and displays an operation screen for operating the electric motor 130 on the terminal display device 315 based on the operation screen information. The terminal device 300 accepts information input to the operation screen displayed on the terminal display device 315 from a user of the terminal device 300. When information is input to the operation screen, the terminal device 300 transmits the information input to the operation screen as control information to the microcomputer 210 via wireless communication, and causes the microcomputer 210 to control the electric motor 130 in accordance with the control information.

[0056] ***Advantages of the First Embodiment*** (1) Lower cost In the hydraulic device control system 1000, information is input using a general-purpose terminal device with wireless communication capabilities, such as a smartphone or tablet computer, instead of a conventional touch panel. Also, in the hydraulic device control system 1000, the hydraulic device 100 is controlled using a general-purpose microcomputer with communication capabilities instead of a conventional PLC. Therefore, it is possible to provide a low-cost hydraulic device control system capable of wirelessly controlling the hydraulic device 100. This is particularly effective in reducing costs for a hydraulic circuit 101 that does not include a directional control valve 150 as shown in FIG. (2) Low cost and simplification Conventional control devices such as PLCs require specialized knowledge to create programs, which means that it is necessary to hire a specialist, which can be expensive. In contrast, in the hydraulic device control system 1000, a hydraulic control program 213A specialized for controlling the hydraulic device 100, which is publicly available on the Web, can be downloaded. Therefore, the user can obtain the program at low cost without needing specialized knowledge. In addition, the user can obtain the hydraulic control program 213A by downloading it from the web, so there is no need for the user to acquire programming knowledge. (3) Reducing the cost and simplifying repair and maintenance In the case of the conventional system using PLC and touch panel, repair and maintenance were difficult. For this reason, the hydraulic control system was left unused for a long time. In addition, repair and maintenance was requested from experts. This resulted in a situation where costs were increasing. On the other hand, the hydraulic device control system 1000 uses a general-purpose terminal device with wireless communication capability and a general-purpose microcomputer with communication capability. Also, the hydraulic control program 213A can be downloaded. Therefore, repair and maintenance can be performed in a short period of time, and the cost of repair and maintenance can be reduced. (4) Facilitating remote control A general-purpose terminal device with wireless communication function is used as the terminal device in the hydraulic device control system 1000. When the wireless communication function is WiFi, as shown in Fig. 2, a general-purpose microcomputer with wireless communication function (i.e., a hydraulic device) located in a remote location can be controlled from the terminal device with wireless communication function via a WiFi router and the Internet. (5) No restrictions on terminal devices In the hydraulic device control system 1000, a general-purpose terminal device with wireless communication function is used as the terminal device, and a general-purpose browser is used for communication with the microcomputer. Steps S11 to S14 in Fig. 6 are performed by the general-purpose browser. Therefore, in terms of "using a general-purpose browser," the hydraulic device control system 1000 has the effect of being able to use any terminal device. (6) Facilitating input of hydraulic system control information 6, the user 600 can interactively input information onto the screen of the terminal display device 315, so that the user can intuitively input what he or she wants to do. Therefore, the hydraulic device control system 1000 improves user convenience. (7) Heat dissipation Furthermore, in the hydraulic device control system 1000, a heat dissipation paint is applied to the housing of the hydraulic device, improving heat dissipation.

[0057] (Hardware Supplement) The hardware configuration of the microcomputer 210 and the terminal device 300 will be further explained with reference to FIG.

[0058] (Hardware configuration of the microcomputer 210) The microcomputer 210 includes a processor 211. The microcomputer 210 includes a hydraulic side control unit 211A as a functional element. The function of the hydraulic side control unit 211A is realized by a hydraulic side control program 213A. The function of the microcomputer 210 is realized by the hydraulic side control unit 211A.

[0059] The processor 211 is a device that executes the hydraulic side control program 213A. The processor 211 executes the hydraulic side control program 213A to realize the functions of a hydraulic side control section 211A. The processor 211 is an integrated circuit (IC) that performs arithmetic processing.

[0060] Specific examples of the hydraulic side main memory device 212 include an SRAM (Static Random Access Memory) and a DRAM (Dynamic Random Access Memory). The hydraulic side main memory device 212 holds the calculation results of the processor 211.

[0061] The hydraulic side auxiliary storage device 213 is a storage device that stores data in a non-volatile manner. A specific example of the hydraulic side auxiliary storage device 213 is a hard disk drive (HDD). The hydraulic side auxiliary storage device 213 may be a portable recording medium. The hydraulic side auxiliary storage device 213 stores a hydraulic side control program 213A.

[0062] The hydraulic side communication device 214 is a device that allows the processor 211 to wirelessly communicate with other devices such as the terminal device 300 .

[0063] The processor 211 loads the hydraulic side control program 213A from the hydraulic side auxiliary storage device 213 into the hydraulic side main storage device 212. The processor 211 reads the loaded hydraulic side control program 213A from the hydraulic side main storage device 222 and executes it.

[0064] The hydraulic side control program 213A is a program that causes a computer to execute each process, each procedure, or each step, where the "part" of the hydraulic side control section 211A is replaced with a "process," a "procedure," or a "step."

[0065] Moreover, a method performed by the microcomputer 210 executing the hydraulic side control program 213A is a hydraulic side control method. The hydraulic side control program 213A may be provided by being stored in a computer-readable recording medium, or may be provided as a program product.

[0066] (Hardware configuration of terminal device 300) The terminal device 300 is a computer. The hardware configuration of the terminal device 300 is the same as that of the microcomputer 210, and the explanation of the microcomputer 210 can be substituted for the explanation of the terminal device 300 by replacing the "hydraulic side" in the explanation of the microcomputer 210 with the "terminal side". Furthermore, the terminal device 300 is equipped with a terminal side display device 315 as hardware. The terminal side display device 315 is capable of displaying a screen and inputting data to the screen. The browser 313B displays the screens of the manual mode operation screen 510, cycle mode operation screen 520, and setting screen 530 described in Figs. 7 to 9 on the terminal side display device 315.

[0067] Various aspects of the present disclosure are summarized below as appendices. (Appendix 1) A hydraulic device including a hydraulic circuit, a hydraulic pump disposed in the hydraulic circuit, and an electric motor that drives the hydraulic pump; A general-purpose microcomputer with wireless communication capability, which is a computer that stores a hydraulic control program and operates by executing the hydraulic control program; a general-purpose terminal device with wireless communication function, which has a display device capable of displaying and inputting information, acquires operation screen information for operating the electric motor from the microcomputer with wireless communication function via wireless communication, and displays an operation screen for operating the electric motor on the display device based on the operation screen information; Equipped with The terminal device with wireless communication function, A hydraulic device control system that accepts information input to the operation screen displayed on the display device from a user of the terminal device with wireless communication function, and when the information is input to the operation screen, transmits the information input to the operation screen as control information via wireless communication to the microcomputer with wireless communication function, and causes the microcomputer with wireless communication function to control the electric motor in accordance with the control information. (Appendix 2) a hydraulic device including a hydraulic circuit, a hydraulic pump disposed in the hydraulic circuit, an electric motor that drives the hydraulic pump, and a solenoid valve disposed in the hydraulic circuit; A general-purpose microcomputer with wireless communication capability, which is a computer that stores a hydraulic control program and operates by executing the hydraulic control program; a general-purpose terminal device with wireless communication function, which has a display device capable of displaying and inputting information, acquires operation screen information for operating the electric motor and the solenoid valve from the microcomputer with wireless communication function via wireless communication, and displays an operation screen for operating the electric motor and the solenoid valve on the display device based on the operation screen information; Equipped with The terminal device with wireless communication function, A hydraulic device control system that accepts information input to the operation screen displayed on the display device from a user of the terminal device with wireless communication function, and when the information is input to the operation screen, transmits the information input to the operation screen as control information via wireless communication to the microcomputer with wireless communication function, and causes the microcomputer with wireless communication function to control the electric motor and the solenoid valve in accordance with the control information. (Appendix 3) The terminal device with wireless communication function, 3. The hydraulic device control system according to claim 1 or 2, wherein the hydraulic device control system executes a general-purpose browser to obtain operation screen information, display the operation screen on the display device, accept information input to the operation screen, and transmit the control information to the microcomputer with wireless communication function. (Appendix 4) The browser, 4. The hydraulic device control system according to claim 3, wherein the information input to the operation screen is accepted interactively. (Appendix 5) The operation screen includes: A cycle is another operation screen in which a series of steps form one cycle. mode 5. The hydraulic device control system according to any one of claims 1 to 4, which is an operation screen. (Appendix 6) The hydraulic control program includes: 6. The hydraulic device control system according to any one of claims 1 to 5, which is downloadable from a website. (Appendix 7) The hydraulic device control system according to any one of appendixes 1 to 6, wherein the wireless communication function between the microcomputer with wireless communication function and the terminal device with wireless communication function is WiFi. (Appendix 8) The hydraulic device includes: The hydraulic pump includes a housing in which the hydraulic pump is housed. The housing includes: 8. The hydraulic device control system according to any one of claims 1 to 7, wherein a heat dissipating paint is applied to the hydraulic device control system. [Explanation of symbols]

[0068] 10,20 hydraulic oil, 100 hydraulic device, 101 hydraulic circuit, 110 inverter, 120 AC100V power source, 130 electric motor, 140 hydraulic pump, 150 directional control valve, 160 hydraulic cylinder, 161,162 limit switch, 163 piston rod, 164 piston section, 171,172 pressure sensor, 180 suction side pressure regulator, 200 drive control system, 210 microcomputer, 211 processor, 211A hydraulic side control section, 212 hydraulic side main memory device, 213 hydraulic side auxiliary memory device, 213A hydraulic side control program, 214 hydraulic side communication device, 215 operation screen information, 219 signal line, 220 power source, 230 voltage return IF board, 280 WiFi router, 300 terminal device, 301 control information, 311 processor, 311A Terminal side control unit, 312 terminal side main memory device, 313 terminal side auxiliary memory device, 313A terminal side control program, 313B browser, 314 terminal side communication device, 315 terminal side display device, 319 signal line, 380 WiFi router, 400 network, 500 operation screen, 510 manual mode operation screen, 510A, 520A, 530A buttons, 511, 513 A1 switch, 512, 514 B1 switch, 520 cycle mode operation screen, 530 setting screen, 600 user, 1000 hydraulic device control system.

Claims

1. A hydraulic device including a hydraulic circuit, a hydraulic pump disposed in the hydraulic circuit, and an electric motor that drives the hydraulic pump; A general-purpose microcomputer with wireless communication capability, which is a computer that stores a hydraulic control program and operates by executing the hydraulic control program; a general-purpose terminal device with wireless communication function, which has a display device capable of displaying and inputting information, acquires operation screen information for operating the electric motor from the microcomputer with wireless communication function via wireless communication, and displays an operation screen for operating the electric motor on the display device based on the operation screen information; Equipped with The terminal device with wireless communication function, a hydraulic device control system that accepts input of information into the operation screen displayed on the display device from a user of the terminal device with wireless communication function, and when the information is input into the operation screen, transmits the information input into the operation screen as control information to the microcomputer with wireless communication function via wireless communication, and causes the microcomputer with wireless communication function to control the electric motor in accordance with the control information, The operation screen includes: A hydraulic device control system, which is a cycle mode operating screen, which is another operating screen in which a series of steps forms one cycle.

2. a hydraulic device including a hydraulic circuit, a hydraulic pump disposed in the hydraulic circuit, an electric motor that drives the hydraulic pump, and a solenoid valve disposed in the hydraulic circuit; A general-purpose microcomputer with wireless communication capability, which is a computer that stores a hydraulic control program and operates by executing the hydraulic control program; a general-purpose terminal device with wireless communication function, which has a display device capable of displaying and inputting information, acquires operation screen information for operating the electric motor and the solenoid valve from the microcomputer with wireless communication function via wireless communication, and displays an operation screen for operating the electric motor and the solenoid valve on the display device based on the operation screen information; Equipped with The terminal device with wireless communication function, a hydraulic device control system that accepts input of information into the operation screen displayed on the display device from a user of the terminal device with wireless communication function, and when the information is input into the operation screen, transmits the information input into the operation screen as control information to the microcomputer with wireless communication function via wireless communication, and causes the microcomputer with wireless communication function to control the electric motor and the solenoid valve in accordance with the control information, The operation screen includes: A hydraulic device control system, which is a cycle mode operating screen, which is another operating screen in which a series of steps forms one cycle.

3. The terminal device with wireless communication function, 3. The hydraulic device control system according to claim 1, wherein the operation screen information is acquired, the operation screen is displayed on the display device, information input to the operation screen is accepted, and the control information is transmitted to the microcomputer with wireless communication function by executing a general-purpose browser.

4. The browser, The hydraulic device control system according to claim 3 , wherein the information input to the operation screen is accepted interactively.

5. The hydraulic control program includes:

3. The hydraulic device control system of claim 1 or 2, which is downloadable from a website.

6. The wireless communication function between the microcomputer with wireless communication function and the terminal device with wireless communication function is 3. The hydraulic device control system according to claim 1 or 2, which is WiFi (registered trademark).

7. The hydraulic device includes: The hydraulic pump includes a housing in which the hydraulic pump is housed. The housing includes:

3. The hydraulic device control system according to claim 1, further comprising a heat dissipating paint applied thereto.

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