Information processing device, workbench, work system, information processing method and program

Abstract

To provide an information processing device, workbench, work system, information processing method, and program that can improve work efficiency.SOLUTION: There is provided an information processing device for operating an operation of an actuator of a workbench, the workbench comprising: a tabletop section functioning as a work platform; leg sections supporting the tabletop section; an actuator moving operably; a control unit for controlling movement of the actuator; and a body section that is a housing mounting the control unit and attached to the leg sections via a mounting structure. Further, the information processing device comprises the control unit that performs the following processing: when an instruction word, pre-associated with a predetermined operation of the actuator, is included in a message obtained by voice recognition of a microphone output signal, the control unit generates an instruction signal directing to control the operation of the actuator to the predetermined operation; and transmits the generated instruction signal to the workbench having the actuator.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to an information processing device, a workbench, a work system, an information processing method, and a program. [Background technology]

[0002] There is known a working device having an operating part that can be operated. For example, Patent Document 1 listed below discloses a technology for operating a vehicle for high-altitude work and raising and lowering a work platform using an operating lever. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Publication No. 2023-116203 Summary of the Invention [Problem to be solved by the invention]

[0004] However, the efficiency of work using the workbench up until now has not been sufficient.

[0005] An object of the present invention is to provide, for example, an information processing device, a workbench, a work system, an information processing method, and a program that can improve work efficiency. [Means for solving the problem]

[0006] The present invention provides, for example, An information processing device for controlling the operation of the operation unit of a workbench having a top plate portion that functions as a work scaffold, legs that support the top plate portion, an operation unit that operates in an operable manner, a control unit that controls the operation of the operation unit, and a body portion that is a housing that mounts the control unit and is attached to the legs by an attachment structure, a control unit that generates an instruction signal for instructing the operation of the operation unit to perform the predetermined operation when an instruction word previously associated with the predetermined operation of the operation unit is included in a message obtained by speech recognition of an output signal from a microphone, and executes a process of transmitting the generated instruction signal to a workbench having the operation unit. The information processing device has the following.

[0007] The present invention provides, for example, The top plate functions as a work platform, a leg portion supporting the top plate portion; an operating unit that operates to be operable; a control unit that controls the operation of the operation unit; a body portion that is a housing that includes the control unit and is attached to the leg portion by an attachment structure; The control unit The information processing device controls the operation of the operation unit, and when a message obtained by speech recognition of an output signal from a microphone includes an instruction word previously associated with a predetermined operation of the operation unit, generates an instruction signal for instructing control of the operation of the operation unit to the predetermined operation, receives the instruction signal transmitted from an information processing device having a control unit that executes processing to transmit the generated instruction signal to a workbench having the operation unit, and executes processing to control the operation of the operation unit to the predetermined operation in accordance with the received instruction signal. It is a workbench. The present invention provides, for example, A work system comprising a workbench having a top plate portion that functions as a work platform, legs that support the top plate portion, an operable operating portion, a control portion that controls the operation of the operating portion, and a body portion that is a housing that mounts the control portion and is attached to the legs by an attachment structure, and an information processing device that controls the operation of the operating portion, The information processing device includes: a control unit that, when a message obtained by speech recognition of an output signal from a microphone includes an instruction word associated in advance with a predetermined operation of the operation unit, generates an instruction signal for instructing the operation of the operation unit to be the predetermined operation, and executes a process of transmitting the generated instruction signal to a workbench having the operation unit; The control unit of the workbench includes: receiving the instruction signal transmitted from the information processing device, and executing a process of controlling the operation of the operation unit to the predetermined operation in response to the received instruction signal; It is a working system.

[0008] The present invention provides, for example, An information processing method for operating the operation of the operation unit of a workbench having a top plate portion that functions as a work platform, legs that support the top plate portion, an operation unit that operates in an operable manner, a control unit that controls the operation of the operation unit, and a body portion that is a housing that includes the control unit and is attached to the legs by an attachment structure, comprising: A process of generating an instruction signal for instructing the operation of the operation unit to perform the predetermined operation when an instruction word previously associated with the predetermined operation of the operation unit is included in a message obtained by speech recognition of an output signal from a microphone, and transmitting the generated instruction signal to a workbench having the operation unit. This is an information processing method that causes a computer to execute the above. The present invention provides, for example, A program for operating the operation of the operation unit of a workbench having a top plate portion that functions as a work platform, legs that support the top plate portion, an operation unit that operates in an operable manner, a control unit that controls the operation of the operation unit, and a body portion that is a housing that mounts the control unit and is attached to the legs by an attachment structure, A process of generating an instruction signal for instructing the operation of the operation unit to perform the predetermined operation when an instruction word previously associated with the predetermined operation of the operation unit is included in a message obtained by speech recognition of an output signal from a microphone, and transmitting the generated instruction signal to a workbench having the operation unit. It is a program that causes a computer to execute the above. [Effects of the Invention]

[0009] According to the present invention, for example, it is possible to provide an information processing device, a work table, a work system, an information processing method, and a program that can improve work efficiency. [Brief explanation of the drawings]

[0010] [Figure 1] 1 is a diagram showing a schematic configuration example of a work system according to a first embodiment of the present invention; [Figure 2] FIG. 1 is a perspective view showing a configuration example of a workbench in a first embodiment. [Figure 3] FIG. 10 is a perspective view showing a configuration example of a workbench in a second embodiment. [Figure 4] FIG. 10 is a perspective view showing a configuration example of a workbench in a third embodiment. [Figure 5] FIG. 2 is a diagram illustrating an example of the external configuration of a moving unit. [Figure 6] FIG. 2 is a block diagram showing an example of the internal configuration of a moving unit. [Figure 7] FIG. 10 is a top view showing an example of a mounting structure of the moving part to the main body part. [Figure 8] FIG. 10 is a perspective view showing an example of attachment to a main body by an attachment portion. [Figure 9] 10A and 10B are diagrams for explaining an example of attachment to a moving part by an attachment part. [Figure 10] FIG. 1 is a block diagram illustrating an example of the configuration of a smartphone. [Figure 11] 10 is a flowchart illustrating an example of processing by the smartphone and the mobile unit. [Figure 12] FIG. 10 is a diagram illustrating an example of a display screen of a smartphone. [Figure 13] FIG. 10 is a diagram illustrating an example of a display screen of a smartphone. [Figure 14] FIG. 10 is a diagram showing specific examples of set words that the smartphone refers to. [Figure 15] 10A and 10B are diagrams illustrating an example of the operation of a moving unit. [Figure 16] 10 is a graph for explaining a movement operation correction function. [Figure 17] FIG. 10 is a diagram illustrating an example of a schematic configuration of a work system according to a second embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0011] Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the following embodiments are preferred specific examples of the present invention, and the content of the present invention is not limited to the following embodiments. Furthermore, in the drawings referred to in the following description, the same reference numerals may be used to designate components having similar functions or configurations, and their description may be omitted. Furthermore, the shapes, sizes, positional relationships, etc. of components shown in each drawing may be exaggerated depending on the content of the description, and hatching, reference numerals, etc. may be omitted. Furthermore, directions such as up, down, left, and right in the description are merely examples.

[0012] 1. First Embodiment [1-1. Example of overall system configuration] Fig. 1 is a diagram showing a schematic configuration example of a work system according to a first embodiment of the present invention. The work system 1 shown in Fig. 1 has a work table 2 as a work device and an operation unit 3 for operating the work table 2. The work table 2 is installed on an installation surface P such as a floor for use. Fig. 1 shows the work table 2 as viewed from the left side.

[0013] The work platform 2 is used, for example, to carry a worker W who performs work at height. The worker W may be one person or multiple people. The maximum load weight of the work platform 2 is, for example, approximately 250 kg. The work platform 2 is configured to be operable by an operation unit 3. The work platform 2 has a main body unit 10, a ladder unit 20, a handrail unit 30, and a moving unit 40. The main body unit 10 is a platform on which the worker W and luggage such as materials and tools are placed. The ladder unit 20 is used by the worker W when ascending and descending the main body unit 10. The handrail unit 30 assists the worker W on the main body unit 10. The moving unit 40 moves the main body unit 10. The ladder unit 20, the handrail unit 30, and the moving unit 40 are each configured to be detachable from the main body unit 10.

[0014] The operation unit 3 is used by an operator to operate the workbench 2. Here, the explanation will be given assuming that the operator is the worker W, but the operation unit 3 may be operated by a person other than the worker W. The operation unit 3 has an emergency stop switch 50 and a smartphone 80.

[0015] The emergency stop switch 50 is operated by the worker W in an emergency when the operation of the workbench 2 must be stopped. An emergency situation could be, for example, when the operating workbench 2 comes into contact with another object (including a person) or when it starts moving unintentionally. The emergency stop switch 50 is, for example, a push button switch. When the push button switch is pressed, it stops the operation of the workbench 2, and when it is pulled up while turning it from that state, the stopped state is released. When there is no need to move the workbench 2, pressing the emergency stop switch 50 can prevent erroneous operation. The emergency stop switch 50 is connected to a destination, for example, by a wired cable.

[0016] The smartphone 80 is configured to be able to operate the workbench 2. The smartphone 80 is used by the worker W, for example, by hanging it around his neck using a strap or the like. The smartphone 80 may be used by the worker W in his pocket or by being installed in a predetermined installation location. The smartphone 80 can operate the workbench 2 by voice (specifically, by speaking). The smartphone 80 will be described in detail later.

[0017] [1-2. Example of workbench configuration] 2 to 4 are perspective views showing an example of the configuration of the workbench 2. Note that FIG. 2 shows a state in which the moving section 40 described above has been removed. FIGS. 3 and 4 show a state in which the ladder section 20 and handrail section 30 have been removed in addition to the moving section 40. The workbench 2 can be used as a work platform even when the handrail section 30 and moving section 40 have been removed. The ladder section 20 is attached and used as needed. The moving section 40 will be explained in detail later.

[0018] As shown in FIG. 2, the main body 10 has a top panel 100, legs 110, and auxiliary legs 120. The top panel 100 functions as a foothold for, for example, a worker W. The top panel 100 has a rectangular shape that is long in the front-to-rear direction when viewed from above (the side opposite the installation surface P). The length L1 of the top panel 100 in the front-to-rear direction is, for example, 2130 mm, and the length L2 in the left-to-right direction is, for example, 1300 mm. The top panel 100 is made up of a first top panel 101a and a second top panel 101b. The first top panel 101a forms the front part of the top panel 100 in the front-to-rear direction, and the second top panel 101b forms the rear part (the side on which the ladder section 20 is installed in the figure).

[0019] As shown in FIG. 3, the main body 10 is configured so that the first top panel 101a and the second top panel 101b can be folded so that their top surfaces face each other. This allows for space saving when not in use. As shown in FIG. 2, the first top panel 101a and the second top panel 101b each have a mesh-like mesh portion 102 (see the enlarged view of part A within the two-dot chain line) near their adjacent left corners in the left-right direction. The mesh portion 102 is made of, for example, expanded metal. The mesh portion 102 of the top panel 100 allows for smooth routing of wiring between the top and bottom of the top panel 100, for example.

[0020] The legs 110 support the top panel 100 and the load of a worker W or the like applied to the top panel 100. The legs 110 are attached to the underside of the top panel 100. Specifically, the legs 110 have eight leg members 111a to 111h. The leg members 111a to 111h each extend from the top panel 100 toward the installation surface P (see FIG. 1). The leg members 111a and 111b are located on the right side in the left-right direction and are spaced apart from each other in the front-rear direction. The leg members 111c and 111d are located on the left side in the left-right direction and are spaced apart from each other in the front-rear direction. The leg members 111e and 111f are located on the right side in the left-right direction and are spaced apart from each other in the front-rear direction and are provided in the middle of the leg members 111a and 111b. Leg members 111g and 111h are located on the left side in the left-right direction and are spaced apart from each other in the front-rear direction and are provided midway between leg members 111c and 111d. A length L3 between leg members 111e and 111f and a length L4 between leg members 111g and 111h are each, for example, 410 mm.

[0021] The leg members 111a to 111h are each configured to be adjustable in length. Specifically, the leg members 111a to 111h are each configured to include a first leg member on the tabletop 100 side and a second leg member on the installation surface P side. The first and second leg members are, for example, tubular members with a rectangular cross section made of a metal material such as steel. The first leg members are configured to be insertable into the second leg members, and are configured to allow the length from the installation surface P to the tabletop 100 (the height of the tabletop 100) to be adjusted by a locking mechanism provided on each. The height H of the tabletop 100 can be adjusted to nine levels (in 100 mm increments), for example, 1165 mm, 1265 mm, 1365 mm, . . . , and 1965 mm. 1 and 2 show a usage state in which the leg members 111a to 111h are most extended (for example, H=1965 mm), and FIG. 4 shows a usage state in which the leg members 111a to 111h are most retracted (for example, H=1165 mm).

[0022] As shown in FIG. 2, casters 112a to 112h are attached to the end of each of the leg members 111a to 111h on the installation surface P side. Specifically, the casters 112a to 112h are provided at the bottom of the leg members 111a to 111h so as to be rotatable about a vertical axis. This allows the main body 10 to move freely along the installation surface P. Furthermore, the leg members 111a to 111h are appropriately provided with connecting members 113 that connect adjacent members, providing sufficient strength for the workbench 2. Furthermore, the leg members 111a to 111h, together with the connecting members 113, have a folding structure that allows the main body 10 to be folded as shown in FIG. 3. The casters 112e to 112h are designed to contact the installation surface P even when folded, allowing the main body 10 to move even when folded.

[0023] The auxiliary legs 120 shown in FIG. 2 support the legs 110. The auxiliary legs 120 are, for example, tubular members made of a metal material such as steel and having a rectangular cross section. The auxiliary legs 120 extend in the vertical direction relative to a predetermined connecting member 113. The auxiliary legs 120 are attached to a connecting member 113 that connects the leg members 111a and 111c near the leg member 111a, and to a connecting member 113 that connects the leg members 111b and 111d near the leg member 111d. The positions and number of the auxiliary legs 120 are not limited to those shown in the figure. Casters 121 are attached to the lower parts of the auxiliary legs 120, respectively. The casters 121 are rotatable about vertical axes. The auxiliary legs 120 are configured so that the vertical positions of the casters 121 can be adjusted. This, for example, can eliminate wobbling of the main body 10. In addition, the legs 110 can be lifted away from the installation surface P.

[0024] As shown in Figures 1 and 2, the ladder unit 20 is attached to the shorter end of the top panel 100 of the main body 10. The ladder unit 20 may also be attached to the longer end. Attaching the ladder unit 20 allows the worker W to easily ascend and descend between the top panel 100 of the main body 10 and the installation surface P. The ladder unit 20 includes a ladder unit 210 and a handhold unit 220. The ladder unit 210 is the part that the worker W ascends and descends on, and has two leg members and a number of step bars. The two leg members each have a caster 211 at their lower end, and are connected to the installation surface P via the caster 211. This allows the main body 10 to be moved with the ladder unit 20 attached. The ladder unit 210 is configured to be extendable and retractable to match the height of the top panel 100. The handhold portion 220 is a portion on which the worker W places his / her hands when ascending or descending the ladder portion 210.

[0025] The handrail section 30 is provided in a fence-like configuration on the tabletop section 100. Specifically, the handrail section 30 has a first handrail section 310a whose length in the lateral direction of the tabletop section 100 is approximately the same as (including the same as) that of the tabletop section 100, and a second handrail section 310b whose length in the longitudinal direction of the tabletop section 100 is approximately the same as (including the same as) that of the tabletop section 100. The handrail section 30 is provided to surround the top of the tabletop section 100 at two different heights. By attaching the handrail section 30, the work area of ​​the main body section 10 is surrounded by the handrail section 30. When a worker W works in the work area, a part of the worker W's body comes into contact with the handrail section 30, allowing the worker W to recognize that he or she is at the end of the work area. Note that the workbench 2 can be used even if the handrail section 30 is detached from the main body section 10, as shown in FIG. 4. By attaching the handrail portion 30 to the main body portion 10, the worker W can grab the handrail portion 30 when he stumbles, and can work safely.

[0026] [1-3. Example of moving part configuration] FIG. 5 is a diagram showing an example of the external configuration of the moving unit 40. FIG. 5A is a front view of the moving unit 40 (viewed from the front in the front-to-rear direction), FIG. 5B is a top view of the moving unit 40, FIG. 5C is a rear view of the moving unit 40, and FIG. 5D is a right side view of the moving unit 40. Note that the front view of FIG. 5A, the rear view of FIG. 5C, and the right side view of FIG. 5D are each represented based on the top view of FIG. 5B. The moving unit 40 moves the main body 10 in response to instructions from the worker W. Specifically, the moving unit 40 moves along the installation surface P, thereby moving the main body 10 to which the moving unit 40 is attached, i.e., the workbench 2, in the same direction as the moving unit 40. The moving unit 40 can move the main body 10 with the worker W still resting on it. The maximum moving speed is, for example, 0.4 m / s.

[0027] The moving unit 40 has a body unit 410 and a wheel unit 430 as an operating unit. The body unit 410 functions as a drive unit for the moving unit 40. As shown in FIG. 1, the body unit 410 is installed below the top panel unit 100 of the main body unit 10 described above. The body unit 410 has components mounted in a rectangular parallelepiped housing 411 that is elongated in the front-to-rear direction and is made of a metal material such as aluminum. For example, the length L5 of the body unit 410 in the front-to-rear direction is 736 mm, the length L6 in the left-to-right direction is 395 mm, and the length L7 in the up-to-down direction is 192 mm. The size of the moving unit 40 including the wheel unit 430 is, for example, a length L8 in the left-to-right direction of 650 mm and a length L9 in the up-to-down direction of 218 mm.

[0028] Batteries 412a and 412c are mounted in the center of the left side of the housing 411, and batteries 412b and 412d are mounted in the center of the right side. Batteries 412a to 412d are detachable from the housing 411. The front of the housing 411 is provided with a power switch, a pilot light, a main body stop switch similar to the above-described emergency stop switch 50, a touch-screen operation panel, and the like. The rear of the housing 411 is provided with a connector for connecting the above-described emergency stop switch 50, a buzzer, a fuse, and the like. When the emergency stop switch 50 or the main body stop switch is pressed, for example, an emergency state is displayed on the operation panel and an alarm buzzer sounds. The alarm can be muted by, for example, pressing a buzzer-off button displayed on the operation panel. A device that visually indicates the status, such as a Patlite (registered trademark), may be connected to the moving unit 40. For example, a green light illuminates when the moving unit is in operation and a red light illuminates when an emergency stop occurs, making it easy to check the status. The movement unit 40 allows the degree of acceleration / deceleration during movement to be adjusted (for example, three levels: quick, medium, and gentle) using, for example, an operation panel.

[0029] The wheel unit 430 has four wheels 431a to 431d. The wheel 431a is located on the left front side of the housing 411, the wheel 431b is located on the right front side of the housing 411, the wheel 431c is located on the left rear side of the housing 411, and the wheel 431d is located on the right rear side of the housing 411. The axial direction of each of the axles of the wheels 431a to 431d is along the left-right direction. The moving unit 40 of this embodiment is configured to be movable in all directions along the installation surface P by the rotation of each of the wheels 431a to 431d of the wheel unit 430. Furthermore, the moving unit 40 of this embodiment is configured to be swivelable around a vertical axis by the rotation of each of the wheels 431a to 431d of the wheel unit 430.

[0030] Specifically, a plurality of barrel-shaped rollers 432 are arranged on each of wheels 431a to 431d, centered on the axial direction of the axle. Rollers 432 are made of, for example, synthetic resin. Each of the rollers 432 is inclined at a 45-degree angle with respect to the axial direction of the axle. For example, Mecanum wheels (RVW-7PG) manufactured by Nabtesco Corporation can be used for wheels 431a to 431d. Here, rollers 432 of wheels 431a and 431d are inclined in the same direction, and rollers 432 of wheels 431b and 431c are inclined in the same direction. Rollers 432 of wheels 431a and 431b are inclined in different directions. This enables moving unit 40 to move in all directions and turn as described above.

[0031] Furthermore, the moving unit 40 has shock-absorbing suspensions (not shown) between each of the wheels 431a to 431d and the housing 411. The suspensions are high-resilience suspensions with a maximum deflection of, for example, 20 mm for the total weight expected when the moving unit 40 is attached to the main body 10 (for example, the weight of the workbench 2 + the maximum load weight of the workbench 2). By employing high-resilience suspensions, for example, it is possible to eliminate inconveniences caused by load fluctuations on the top plate 100 (for example, slight unevenness or a bouncy feeling on the footing, unsteadiness of the worker W, etc.) even when the moving unit 40 is attached to the main body 10.

[0032] 6 is a block diagram showing an example of the internal configuration of the moving unit 40. The moving unit 40 has a body 410, a battery unit 413, a voltage measurement unit 414, an EMG operating unit 415, switching regulators 416a and 416b, a brake release relay 417, motor drivers 418a to 418d, motors 419a to 419d, gearboxes 420a to 420d, a communication unit 421, and a control unit 422.

[0033] As described above, the battery unit 413 has a plurality of detachable batteries 412a-412d. The batteries 412a-412d may be, for example, lithium-ion batteries. The voltage measurement unit 414 measures the voltage of the battery unit 413 and transmits information about the measured voltage to the control unit 422. The EMG operation unit 415 is provided between the battery unit 413 and the motor drivers 418a-418d. The EMG operation unit 415 is connected to the emergency stop switch 50 via an input terminal, and when the emergency stop switch 50 is pressed (switched on), it cuts off the power supply to the motor drivers 418a-418d. The EMG operation unit 415 also operates when the main body stop switch on the back of the housing 411 is turned on. This ensures that operation can be stopped reliably in an emergency. The switching regulators 416a and 416b convert the input voltage from the battery unit 413 into a predetermined voltage and output it to the brake release relay 417, the motor drivers 418a to 418d, and the control unit 422. When moving the moving unit 40, the brake release relay 417 generates a brake release signal and transmits it to the motors 419a to 419d.

[0034] The motor drivers 418a to 418d drive the motors 419a to 419d, respectively, based on control signals DAch1 to DAch4 from the control unit 422. Specifically, the motor drivers 418a to 418d receive signals indicating the rotation direction and rotation speed of the motors 419a to 419d from the control unit 422, and energize (U, V, W) the motor coils of the motors 419a to 419d so that the rotation direction and rotation speed match the received signals. At this time, the motor drivers 418a to 418d control the energization based on hall signals (Hu, Hv, Hw) from hall sensors that detect the rotor positions of the motors 419a to 419d.

[0035] Motors 419a to 419d are energized by motor drivers 418a to 418d, and rotate in a direction and at a speed corresponding to a signal from control unit 422. Motors 419a to 419d are, for example, brushless DC motors. Gearboxes 420a to 420d transmit the rotational force of motors 419a to 419d to wheel unit 430 at a reduced speed. Gearbox 420a transmits the rotational force to wheel 431a, gearbox 420b transmits the rotational force to wheel 431b, gearbox 420c transmits the rotational force to wheel 431c, and gearbox 420d transmits the rotational force to wheel 431d. Therefore, body unit 410 can drive wheel unit 430 under the control of control unit 422. When motors 419a to 419d receive a brake release signal from brake release relay 417, the brakes are released and motors 419a to 419d become rotatable. When the vehicle is stopped or when power is lost, the wheels 431a to 431d are locked.

[0036] The communication unit 421 is capable of wirelessly connecting to a connection destination using a wireless communication protocol such as wireless LAN or Bluetooth. The communication unit 421 wirelessly connects to the smartphone 80 using, for example, Wi-Fi as the wireless communication protocol. Specifically, the communication unit 421 receives an instruction signal (described later) transmitted by the smartphone 80. The communication unit 421 is connected to the control unit 422 by, for example, a LAN cable, and transmits received data to the control unit 422.

[0037] The control unit 422 controls the entire moving unit 40. The control unit 422 is configured with, for example, a central processing unit (CPU), a read-only memory (ROM), a random access memory (RAM), and other memories. The CPU executes programs stored in the memory to control each component of the moving unit 40. The control unit 422 is configured to include, for example, a programmable logic controller (PLC). The use of a PLC achieves a long lifespan and a high response speed, allowing for safe use. The control unit 422 controls the moving unit 40 to move the main body 10 of the workbench 2 in accordance with instructions from the worker W. Specifically, the control unit 422 rotates the motors 419a to 419d by transmitting control signals DAch1 to DAch4 to the motor drivers 418a to 418d, respectively, based on instruction signals transmitted from the communication unit 421.

[0038] [1-4. Example of moving part installation] Here, in order to smoothly move the workbench 2 by the moving unit 40, it is necessary to increase the frictional force between the installation surface P and each of the wheels 431a to 431d of the moving unit 40. Therefore, the moving unit 40 is attached to the main body 10 with the leg members 111a to 111d at the four corners of the main body 10 spaced a predetermined distance (for example, about 5 to 20 mm) from the installation surface P, so that the moving unit 40 is pushed by the main body 10.

[0039] Since the workbench 2 may be subjected to a relatively large load (e.g., 0 to 250 kg) on ​​the top panel 100, if the mounting balance of the moving unit 40 is poor, for example, when a heavy load is applied, some of the leg members 111a to 111d of the main body 10 may come into contact with the installation surface P, causing the wheels 431a to 431d of the moving unit 40 to spin freely. This is particularly likely when the high-resilience suspension described above is not employed. For this reason, the moving unit 40 must be mounted with consideration given to balance, for example, by ensuring that the distance between each of the leg members 111a to 111d and the installation surface P is equal.

[0040] For example, the main body 10 and the moving unit 40 may be detachably attached using a fastener such as a clamp member. Alternatively, they may be directly fastened using a plurality of bolts (e.g., six or more). In these cases, for example, an adjustment plate (e.g., made of metal) of a predetermined thickness (e.g., 5 to 20 mm) may be placed under the casters 112a to 112d at the four corners of the main body 10 to lift and balance it, and then a load may be applied to the moving unit 40 installed under the main body 10 to fasten the moving unit 40 to the main body 10. However, this installation and adjustment work takes a long time, for example, about 20 minutes to an hour, and the work efficiency is poor.

[0041] It is also expected that the work platform 2 will often be used at construction sites such as high-rise buildings. When used at construction sites such as high-rise buildings, it is necessary to move to the next floor (e.g., a higher floor) after work on each floor is completed. Therefore, it is necessary to detach and attach the moving part 40 each time work on each floor is completed. This repeated detachment and attachment leads to a further deterioration of work efficiency. Taking these factors into consideration, the work platform 2 of this embodiment employs an attachment structure that provides excellent work efficiency, as described below.

[0042] 7 to 9 are diagrams illustrating an example of mounting the moving unit 40 to the main body unit 10. FIG. 7 is a top view showing the mounting structure, FIG. 8 shows an example of mounting to the main body unit 10, and FIG. 9 shows an example of mounting to the moving unit 40. The mounting unit 90 shown in the figures is for mounting the moving unit 40 to the main body unit 10. As shown in FIG. 1, the mounting unit 90 mounts the wheel unit 430 (specifically, the moving unit 40) to the main body unit 10 in a state where the main body unit 10 is separated from the installation surface P. As shown in FIG. 7, the mounting unit 90 has two connection receiving portions 910a and 910b, four leg fixing portions 920a to 920d, four pressure receiving portions 930, and four adjustment portions 940.

[0043] The connection receiving portions 910a and 910b are formed of rods with an L-shaped cross section, so-called angle bars. The connection receiving portions 910a and 910b are formed of a metal material such as steel. The connection receiving portion 910a has a length sufficient to connect the leg members 111e and 111g of the main body 10. The connection receiving portion 910b has a length sufficient to connect the leg members 111f and 111h. As shown in FIG. 9, each of the connection receiving portions 910a and 910b has two holes 911 through which portions of the adjustment portion 940 are inserted. The number and positions of the holes 911 and the adjustment portions 940 may be changed as appropriate depending on the load applied to the moving portion 40, etc.

[0044] The leg fixing portions 920a to 920d fix the connection receiving portions 910a and 910b to the legs 110 of the main body 10. Specifically, the leg fixing portion 920a fixes the connection receiving portion 910a to the leg member 111e, and the leg fixing portion 920b fixes the connection receiving portion 910b to the leg member 111f. The leg fixing portion 920c fixes the connection receiving portion 910a to the leg member 111g, and the leg fixing portion 920d fixes the connection receiving portion 910b to the leg member 111h. For example, the leg fixing portions 920a and 920c together with the connection receiving portion 910a form a clamp member, and the leg fixing portions 920b and 920d together with the connection receiving portion 910b form a clamp member. FIG. 8 shows an example of the configuration of the leg fixing portion 920a. The leg fixing portion 920a has, for example, a rectangular plate-like portion 921, a plurality of bolts 922, and nuts 923. The bolts 922 are inserted into a plurality of insertion holes provided in the plate-like portion 921 and the connection receiving portion 910a, and the connection receiving portion 910a is fixed to the leg component 111e by tightening with the nuts 923. The leg fixing portions 920b to 920d can also have a similar configuration.

[0045] 7 and 9 is a plate-like member that positions the moving unit 40. The pressing force receiving portion 930 is formed of a metal material such as steel, and prevents the adjustment unit 940, which it abuts, from slipping. The pressing force receiving portion 930 is fixed to a predetermined position on the top surface of the housing 411 of the moving unit 40 with screws or the like. The pressing force receiving portion 930 may have an anti-slip treatment applied to the top surface that the adjustment unit 940 abuts on, or may have a recessed shape in which the abutting portion of the adjustment unit 940 is recessed, or an insertion hole into which the abutting portion of the adjustment unit 940 is inserted.

[0046] The adjustment portion 940 is a member that connects each pressure receiving portion 930 and the connection receiving portions 910a, 910b in an adjustable manner. The adjustment portion 940 is formed of, for example, a metal material such as steel. The adjustment portion 940 is, for example, an adjuster bolt that can continuously adjust the length by changing the screw engagement position. Specifically, as shown in FIG. 9 , the adjustment portion 940 has a conical base portion 941 against which the pressure receiving portion 930 abuts, a rod-shaped threaded portion 942 having one end attached to the central apex of the base portion 941, and a nut portion 943 that threads with the threaded portion 942. As shown in the figure, the threaded portion 942 and the nut portion 943 are threaded together without loosening, for example, using a double nut. The nut portion 943 may be provided in the hole portion 911 described above. The screw portion 942 has a drive unit 944 at the other end that is driven by a screwdriver (screwdriver), and the length can be easily adjusted by turning it from the other end side using an electric screwdriver or the like. With this configuration, the adjustment unit 940 connects the main body unit 10 and the moving unit 40 so that the distance from the installation surface P to the main body unit 10 can be adjusted in length using a screwdriver. Note that in the illustrated example, the drive unit 944 is configured by providing a cross-shaped recess for a screw at the other end of the screw portion 942, but the drive unit 944 may have other configurations (for example, a slotted hole, a hexagonal socket, etc.).

[0047] For example, the moving unit 40 is attached to the main body 10 as follows. First, the foldable main body 10 described above is unfolded and placed on the moving unit 40, and the moving unit 40 is moved to the center directly below the main body 10. Next, as shown in FIG. 8, the connection receiving units 910a, 910b are fixed to the leg members 111e, 111b, 111c, 111d using the leg fixing units 920a, 920d. At this time, the screw unit 942 of the adjustment unit 940 is inserted from the other end into each hole 911 of the connection receiving units 910a, 910b. Next, the drive unit 944 of the adjustment unit 940 is turned with a screwdriver or the like to a predetermined position (for example, a marking position previously made on the screw unit 942) and fixed. When the drive unit 944 of the adjustment unit 940 is turned to a predetermined position, the spring force acting upward by the suspension mechanism of the moving unit 40 and the load on the main body 10 cancel each other out, eliminating the need for tedious load balance adjustments during installation. Thus, when installing using the mounting unit 90, the adjustment unit 940 is not fixed but pressed against the moving unit 40 from the connecting receiving portions 910a and 910b. Fine adjustments of the balance can also be easily made by turning the drive unit 944. This ensures that the moving unit 40 is properly installed on the main body 10. Finally, the wiring cables for the emergency stop switch 50 and other components are connected to the moving unit 40. For example, the wiring cables are secured to the bottom of the top panel 100 with the included hook-and-loop fasteners or similar to prevent them from getting caught during installation.

[0048] Once the moving unit 40 is attached to the main body 10 using the mounting unit 90, the moving unit 40 can be detached from the main body 10 simply by adjusting the drive unit 944 of the adjustment unit 940. This reduces the time required for attachment and detachment. Furthermore, the time required for balance adjustment can be significantly reduced by simply adjusting the drive unit 944. For example, initial attachment can be completed in 10 to 20 minutes, and subsequent attachment and detachment, including adjustments, can be completed in just a few minutes. Furthermore, the stepless installation adjustment function of the mounting unit 90 and the high-resilience suspension of the moving unit 40 described above eliminate subtle unevenness or a loose feeling on the footing when attaching or moving the moving unit 40, making the work easier. Furthermore, the pressure receiving unit 930 prevents the adjustment unit 940 from slipping during movement, preventing the moving unit 40 from coming off the main body 10.

[0049] [1-5. Example of smartphone configuration] 10 is a block diagram showing an example configuration of a smartphone 80. The smartphone 80 has a communication unit 81, a microphone 82, a speaker 83, a camera 84, a sensor unit 85, a display 86, a touch panel 87, and a control unit 88. Each of the communication unit 81, the microphone 82, the speaker 83, the camera 84, the sensor unit 85, the display 86, and the touch panel 87 is connected to the control unit 88 via a bus 89.

[0050] The communication unit 81 performs network communication via a communication network such as the Internet, a public telephone network, a wide area communication network for wireless mobile devices such as a 4G (4th Generation Mobile Communication System) line or a 5G (5th Generation Mobile Communication System) line, a LAN, or a WAN (Wide Area Network), or short-range wireless communication such as Bluetooth or NFC (Near Field Communication). Specifically, the communication unit 81 performs wireless communication with the moving unit 40 of the workbench 2. Note that the communication unit 81 may also perform wired communication with the moving unit 40 of the workbench 2 using a USB (Universal Serial Bus) cable or the like.

[0051] The microphone 82 and the speaker 83, for example, pick up the user's voice and output the voice of the other party when making a call using the smartphone 80. Furthermore, when an operation application 882 (described later) is executed, the microphone 82 picks up the voice as appropriate, and the speaker 83 outputs the voice as appropriate. Note that the microphone 82 does not have to be a built-in microphone of the smartphone 80, and may be, for example, a pin microphone. The camera 84 is disposed, for example, on the front of the smartphone 80, and captures a photographed image by photographing a desired subject. The sensor unit 85 senses the position, speed, acceleration, etc. of the smartphone 80.

[0052] The display 86 displays an operation screen for performing processing by the operation application 882, images captured by the camera 84, etc. The touch panel 87 acquires touch operations by a user (for example, worker W) on the operation screen displayed on the display 86.

[0053] The control unit 88 is configured with, for example, a CPU, a ROM, a RAM, and other memories, and the CPU executes a program stored in the memory to control each unit constituting the smartphone 80. Note that the program is not limited to being stored in the built-in memory of the smartphone 80, and a part or all of the program may be stored in an external memory (for example, a USB memory) readable by the smartphone 80 or in another device on the network. Specifically, the control unit 88 executes an operating system (OS) 881 and an operation application 882.

[0054] The operating system 881 performs processing to realize the basic functions and operations of the smartphone 80. The operation application 882 is an application for operating the work table 2 described above, and performs operation processing of the work table 2 together with the operating system 881.

[0055] [1-6. Example of operation using a smartphone] The following describes the operation of the moving unit 40, that is, the workbench 2, using the smartphone 80. FIG. 11 is a flowchart showing an example of the flow of processing by the smartphone 80 and the moving unit 40.

[0056] (Processing by smartphone) The smartphone 80 starts the process shown in FIG. 11 by executing the operation application 882 described above. When the process starts, the smartphone 80 transmits a connection signal to the moving unit 40 to connect to the moving unit 40 (step S1). Specifically, when the process starts, the smartphone 80 accepts a connection request from the worker W, and connects to the moving unit 40 when the connection request is received. FIG. 12 shows an example of a display screen of the smartphone 80 at the start of the process. Note that FIG. 12 shows an example of communication using the protocols (communication protocols) IPV4 and TCP / IP. The connection destination display section 861 displays the IP address of the moving unit 40, which is the connection destination. Note that the port number is set to a predetermined value (e.g., 2022). For example, by setting multiple connection destinations and enabling selective connection, it is possible to select and operate a workbench 2 to be operated from multiple workbenches 2. The connect button 871 is a button that the worker W taps to connect to the moving unit 40. When the connect button 871 is tapped, the smartphone 80 connects to the moving unit 40.

[0057] When the smartphone 80 is connected to the moving unit 40, it enters a state of waiting for instructions from the worker W. FIG. 13 shows an example of the display screen of the smartphone 80 in the waiting state. The voice instruction button 872 displayed on the display 86 is a button that the worker W taps to give voice-operated instructions. The display 86 also displays a software-defined directional key 873, a left turn button 874, a right turn button 875, and a stop button 876 for stopping the operation of the moving unit 40, allowing for manual operation instructions. This manual display can be switched so that the directional key 873 on the left side is moved to the right side, and the left turn button 874, right turn button 875, and stop button 876 on the right side are moved to the left side. This allows for single-handed operation with either the right or left hand. The display screen may also be designed to automatically rotate depending on the angle of the smartphone 80 relative to the vertical direction.

[0058] As shown in FIG. 11 , after connecting to the mobile unit 40, the smartphone 80 acquires a message obtained by performing voice recognition on a voice signal output from the microphone 82 (step S2). Specifically, when the worker W taps the voice instruction button 872, the smartphone 80 activates the microphone 82 and acquires the message. This message is, for example, text data obtained by extracting natural language from speech and converting it into text. The message is, for example, obtained by real-time voice recognition, and is acquired by the smartphone 80 sequentially in predetermined units separated by the content expressed by the message, blank time, etc. This message can be acquired, for example, by using a voice recognition engine (for example, a voice recognition API (Application Programming Interface) using AI (Artificial Intelligence)) available in the operation application 882 of the smartphone 80. For example, by using AI for voice recognition, accurate voice recognition can be performed using a learning model that has been well trained by machine learning. Note that the smartphone 80 itself may have a voice recognition function.

[0059] The smartphone 80 then determines whether the message obtained by voice recognition matches a preset word, and generates an instruction signal that instructs the movement unit 40 to operate according to the determination result. The preset word is preferably one that can prevent malfunction. The preset word is expressed, for example, as text data. The preset word includes not only single words but also coined words and short sentences. The preset word is stored in advance in a storage unit such as a memory of the smartphone 80, and the smartphone 80 reads and acquires the preset word from the storage unit.

[0060] Fig. 14 shows a specific example of list information that lists the setting words referenced by the smartphone 80. Specifically, Fig. 14 shows the type of setting word, the setting word, the operation content corresponding to the setting word, and the conditions for determining whether the setting word matches the message. The types of setting words include wake words, command words, command continuation words, and emergency stop words.

[0061] A wake word is a keyword that starts accepting voice recognition. The wake word includes, for example, a call to check safety before work, such as "check surroundings good." This allows the worker W to check for safety before moving the work platform 2, thereby improving safety. The wake word may, for example, include a word that represents the work platform 2 to be voice-operated in addition to this call (for example, "check surroundings good, work platform A"). This makes it possible to specify the work platform 2 to be operated when multiple work platforms 2 are operable. Note that the wake word is not limited to this, and may include a predetermined word, such as the system name or nickname of the work system 1. Multiple wake words may be registered.

[0062] The instruction words represent specific instructions to the moving unit 40, and include, for example, the movement operation of the moving unit 40. Figure 15 shows an example of the operation of the moving unit 40. The instruction word "forward" in Figure 14 causes the moving unit 40 to move forward (forward). The instruction word "backward" causes the moving unit 40 to move backward (rearward). The instruction word "move right" causes the moving unit 40 to move to the right (right parallel movement). The instruction word "move left" causes the moving unit 40 to move to the left (left parallel movement). The instruction word "move right front" causes the moving unit 40 to move right front (right diagonal front movement). The instruction word "move left front" causes the moving unit 40 to move left front (left diagonal front movement). The instruction word "move left rear" causes the moving unit 40 to move left rear (left diagonal rear movement). The instruction word "move right rear" causes the moving unit 40 to move right rear (right diagonal rear movement). These eight-direction movement instructions can also be given using the above-mentioned directional keys 873. The command word "turn right" causes the moving unit 40 to turn right. The command word "turn left" causes the moving unit 40 to turn left. These right and left turn instructions can also be given using the above-mentioned right turn button 875 and left turn button 874, respectively. Note that the command words are not limited to the movement operations described above, and may be set to specify angles, distances, time, etc., such as "move forward 30 degrees left," "move forward 1 meter," or "move forward 1 second." This allows clear instructions to be given for operations that are difficult to give accurate instructions for manually. Note that the command words may also be instructions such as "move closer to work platform B" or "move closer to worker W." In this way, operations that are difficult to give manual instructions can be easily performed using voice control.

[0063] The command continuation words in Fig. 14 indicate commands to continue the operation of the moving unit 40. The command continuation words include, for example, a call to confirm safety during work, such as "All right." This allows the worker W to check for safety while moving the work platform 2 by voice operation, thereby improving safety.

[0064] The emergency stop word indicates an emergency stop instruction, such as "emergency stop." The emergency stop word is processed with priority over other types of set words. When this instruction is given, the movement unit 40 stops the operation it is currently performing safely and promptly without delay. The emergency stop word may be, for example, "danger," "stop," etc., and multiple emergency stop words may be set. Below, a detailed description is given of the processing using the telegram obtained by the above-mentioned voice recognition and these set words.

[0065] As shown in FIG. 11, after processing step S2, the smartphone 80 determines whether the acquired electronic message contains a wake word (step S3). If it is determined that the acquired electronic message does not contain a wake word (NO in step S3), the smartphone 80 returns the process to step S2. On the other hand, if it is determined that the acquired electronic message contains a wake word (YES in step S3), the smartphone 80 further determines whether the acquired electronic message contains an instruction word (step S4). In this way, if the acquired electronic message contains a wake word, the smartphone 80 performs processing to generate an instruction signal for the electronic message after the wake word. Note that the setting and determination of the wake word may be performed by the voice recognition engine described above.

[0066] If it is determined in step S4 that the acquired message does not contain a command word (NO in step S4), the smartphone 80 returns the process to step S2. On the other hand, if it is determined that the acquired message contains a command word (YES in step S4), the smartphone 80 generates a command signal that instructs the work table 2 to perform an action corresponding to the command word contained therein, and transmits the generated command signal to the movement unit 40 (step S5).

[0067] Next, the smartphone 80 determines whether the acquired message contains an instruction continuation word (step S6). Note that if the instruction signal generated in step S5 instructs an operation that does not require safety confirmation during work, this determination can be omitted. If it is determined that the acquired message contains an instruction continuation word (YES in step S6), the smartphone 80 returns the process to step S5 and continues the instruction using the instruction word. On the other hand, if it is determined that the acquired message does not contain an instruction continuation word (NO in step S6), the smartphone 80 stops the instruction using the instruction word (step S7). In other words, the smartphone 80 stops transmitting the instruction signal to the moving unit 40. In this way, if the message after the instruction word contains an instruction continuation word, the smartphone 80 causes the work table 2 to continue the operation, and if it does not contain the instruction word, the smartphone 80 causes the work table 2 to stop the operation.

[0068] Next, the smartphone 80 determines whether to terminate the processing of the operation application (step S8). If it determines not to terminate (NO), the process returns to step S2. On the other hand, if it determines in step S8 that the operation application should be terminated (YES), the smartphone 80 disconnects from the moving unit 40 (step S9) and terminates the process. Note that if the acquired message matches the emergency stop word, the smartphone 80 safely and immediately stops the operation of the moving unit 40. Specifically, the smartphone 80 generates an instruction signal to activate the EMG activation unit 415 of the moving unit 40 and transmits it to the moving unit 40. In this way, if the emergency stop word is detected in the acquired message, the smartphone 80 generates an instruction signal to emergency stop the operation of the workbench 2, thereby enabling the operation of the workbench 2 to be stopped quickly by voice. For example, an emergency stop can be performed even in a location where the emergency stop switch 50 is out of reach.

[0069] (Operation of moving parts by smartphone operation) The mobile unit 40 starts the process shown in Fig. 11 by, for example, turning on the power. After the mobile unit 40 is turned on, it enters a connection waiting state (step S21). Then, upon receiving the connection signal from the smartphone 80 described above, the mobile unit 40 accepts connection with the smartphone 80 (step S22). This puts the smartphone 80 and the mobile unit 40 in a communicable state. Note that this connection is, for example, a connection that involves login authentication.

[0070] Next, the moving unit 40 determines whether or not an instruction signal transmitted from the smartphone 80 has been received (step S23). The moving unit 40 repeats the determination in step S23 until an instruction signal is received, and if it is received (YES), performs an operation according to the received instruction signal (step S24). For example, if the control unit 422 of the moving unit 40 is configured to include a PLC, when 1024 bytes of the buffer for socket communication in the PLC is completely received, the control unit 422 transfers the received data to a data memory, determines whether the instruction signal transmitted from the smartphone 80 is the same as the instruction signal previously stored in the data memory, and performs an operation according to the instruction signal if they are the same. Specifically, the control unit 422 of the moving unit 40 generates control signals DAch1 to DAch4 corresponding to the operation according to the instruction signal, and outputs them to the motor drivers 418a to 418d, respectively.

[0071] Next, the moving unit 40 determines whether the connection with the smartphone 80 has been disconnected (step S25). If the connection has not been disconnected (if NO), the moving unit 40 continues the operation until the operation is completed. On the other hand, if the connection with the smartphone 80 has been disconnected (if YES), the moving unit 40 stops the operation that is currently being performed (step S26). Then, the moving unit 40 determines whether the power has been turned off (step S27), and if the power has not been turned off (if NO), the process returns to step S23. On the other hand, if it is determined in step S27 that the power has been turned off (if YES), the moving unit 40 ends the process.

[0072] For example, the worker W can vocally instruct the mobile unit 40 to move forward by saying, "Check surroundings. Go forward. All right. All right. All right." The work platform 2 is expected to be used, for example, at a construction site. One possible use mode for the work platform 2 is when the worker W has a passenger. It is also possible that there are people around the work platform 2. In such on-site work, it is customary to verbally confirm the work in consideration of safety. As described above, when operating the mobile unit 40 using the smartphone 80, the mobile unit 40 will not move unless the worker W confirms safety by verbally confirming, such as by saying, "Check surroundings. Go forward. All right, all right, all right," and alerts those around. This improves safety.

[0073] As described above, even a worker W who is not confident in his or her ability to brace himself or herself can safely move the moving unit 40 by holding onto the handrails 30 with both hands, hanging the smartphone 80 from his or her neck, and giving voice commands using the voice operation described above, since the handrails 30 are provided on all four sides of the main body 10. It is also possible to place the smartphone 80 in a pocket or another location, and move the moving unit 40 using voice commands using a hands-free device connected to the smartphone 80.

[0074] [1-7. Specific examples of moving parts] The moving unit 40 has a function that allows the worker W to move to a destination while remaining on the work platform 2. For example, once the settings such as the balance adjustment described above are completed, there is a possibility that the "pre-movement stance" for the movement movement, which has been performed intuitively until then, may be disturbed by a change in the movement speed, causing the worker W to lose balance.

[0075] Therefore, the moving unit 40 has a correction function that corrects movement when starting and stopping. Fig. 16 is a graph for explaining the correction function. Fig. 16A is a graph for explaining control when starting and stopping, and Fig. 16B is a graph for explaining the timing of starting and stopping. The vertical axis represents the motor speed, and the horizontal axis represents the movement distance.

[0076] As shown in FIG. 16A, when starting, the motor speed is intentionally controlled to slow down the time it takes to reach the travel speed. Also, when stopping, the motor speed is intentionally controlled to slow down the time it takes to stop. That is, the inclination angle of the trapezoidal hypotenuse in FIG. 16A is appropriately set in consideration of safety. This controls the output of the drive motor to move slowly when starting, and to stop gently when stopping. By correcting the movement so that it moves slowly and stops gently in this way, safety can be improved even in cases where the above-mentioned movement posture cannot be applied. Note that the motor control is not limited to the trapezoid shown in the figure, and may be, for example, a curve.

[0077] Furthermore, for example, a load sensor (not shown) may be mounted on the workbench 2, and the control unit 422 of the moving unit 40 may change the motor speed using a PLC program or the like in response to an output signal from the load sensor to detect slowing of the moving action of the moving unit 40 due to changes in the load, so that the moving unit 40 can always assume the "pre-movement stance" at a constant speed. This makes it possible to ensure that the feel of use does not change even if the environment, such as the load, changes.

[0078] Furthermore, the work system 1 has a delay operation function that intentionally delays the operation of the work platform 2 by a predetermined time when the work platform 2 is moved by voice control from the smartphone 80. If a person knows in advance that they will be moving, they will unconsciously "take a pre-movement stance" to balance their body. Therefore, when the work system 1 moves the work platform 2 by the moving unit 40, the timing at which the actual motor starts moving is delayed relative to the operation timing, thereby providing time for the worker W standing on the work platform 2 to "take a pre-movement stance."

[0079] For example, as shown in FIG. 16B, the time (t0 to t1) from an operation command to the start of movement of the moving unit 40 is set as a predetermined time. Similarly, the time (t2 to t3) from an operation command to the start of the stopping operation is set as a predetermined time. That is, in the working system 1, the timing at which control of the start and end of operation of the wheel unit 340 of the moving unit 40 can be intentionally delayed according to a set time. This set time can be variably set, for example, from 0 seconds (preferably 1 second) to an unlimited time, taking into consideration the age, reflexes, and other abilities of each worker W, safety, and the like. This operation delay can be achieved, for example, by intentionally delaying the smartphone 80 by a set time when transmitting the above-mentioned instruction signal to the moving unit 40. In this way, by having the smartphone 80 transmit the instruction signal to the work table 2 after an arbitrary set time has elapsed since the output timing of the output signal from the microphone 82, safety can be improved to suit each individual worker W. Note that the moving unit 40 that receives the instruction signal may intentionally delay its operation by a set time. However, in an emergency such as an emergency stop, for example, the operation is stopped without any operational delay in consideration of safety.

[0080] As described above, in the work system 1 according to this embodiment, the work table 2 can be operated by voice. That is, the control unit 88 on the smartphone 80 side and the control unit 422 on the work table 2 side each control the movement of the wheel unit 430 to a predetermined movement (e.g., right translation) when an instruction word (e.g., right translation) previously associated with a predetermined movement of the wheel unit 430 of the moving unit 40 is included in a message obtained by voice recognition of the output signal of the microphone 82. Specifically, when an instruction word previously associated with the predetermined movement of the wheel unit 430 is included in a message obtained by voice recognition of the output signal of the microphone 82, the control unit 88 of the smartphone 80 generates an instruction signal instructing the movement of the wheel unit 430 to a predetermined movement and transmits the instruction signal to the work table 2. Meanwhile, the control unit 422 of the work table 2 receives the instruction signal transmitted by the smartphone 80 and controls the movement of the wheel unit 430 to a predetermined movement in accordance with the received instruction signal. This allows the work table 2 to be operated by voice. The worker W can operate the work table 2 without using his or her hands, which improves work efficiency. By realizing voice operation, it is possible to perform operations more accurately and precisely, preventing malfunctions, compared to manual operations which tend to be ambiguous. Also, not only can the work platform 2 be moved with the worker W on it, but the work platform 2 located far from the worker W can also assist with work, such as transporting heavy objects to the location of the worker W, thereby reducing the workload.

[0081] 2. Second Embodiment FIG. 17 is a diagram showing an example of the configuration of a work system 1 according to a second embodiment of the present invention. The work system 1 according to the second embodiment has a work table 2 and an operation unit 3. The work system 1 according to this embodiment differs from the work system 1 according to the first embodiment shown in FIG. 1 in that the operation unit 3 has a foot switch 60 in addition to an emergency stop switch 50 and a smartphone 80. The other configurations are basically the same as those of the first embodiment. The differences from the first embodiment will be specifically described below.

[0082] The foot switch 60 is used by the worker W (operator) to switch between operable and inoperable states when operating the workbench 2. By employing the foot switch 60, the worker W can operate the foot switch 60 with his / her foot even when his / her hands are occupied with work, thereby preventing a decrease in work efficiency. The foot switch 60 is installed, for example, in a location where the worker W can operate it. Specifically, the foot switch 60 is a momentary switch that turns on when the worker W steps on it with his / her foot, making the workbench 2 operable, and turns off when the worker W releases his / her foot from stepping on it, making the workbench 2 inoperable. Note that the momentary type here refers to a type in which the on state is maintained by maintaining the state of the worker W (for example, by continuing to step on the foot switch 60).

[0083] The foot switch 60 is connected to the moving unit 40 via a cable, for example. Specifically, the foot switch 60 is connected to the control unit 422 via a connection terminal on the body unit 410 of the moving unit 40 (see FIGS. 5 and 6). The foot switch 60 outputs a signal indicating whether the foot switch 60 is in an off state or an on state to the control unit 422. Based on the output signal from the foot switch 60, the control unit 422 does not control the wheel unit 430 described above, i.e., the motor drivers 418a to 418d and the motors 419a to 419d, when the foot switch 60 is in an off state, but controls the wheel unit 430 described above when the foot switch 60 is in an on state. The control unit 422 stops the operation of the wheel unit 430 when the foot switch 60 changes from an on state to an off state. Specifically, the operation of the wheel unit 430 is stopped by releasing the foot switch 60. This improves safety.

[0084] In this embodiment, the foot switch 60 allows the moving unit 40 to recognize the start, continuation, and end of a voice-operated instruction. For example, the process of step S24 in Fig. 11 is performed when the foot switch 60 is in the on state, and continues until the foot switch 60 switches from the on state to the off state. In other words, while the foot switch 60 is depressed, an operation is performed by voice operation, the operation continues while the foot switch 60 is depressed, and the operation by voice operation stops when the foot switch is released.

[0085] This makes it possible to omit the above-described process on the smartphone 80 side for initiating a voice operation instruction by voice recognition of a wake word (the process of step S3 shown in FIG. 11) and the process for continuing a voice operation instruction by voice recognition of an instruction continuation word (the processes of steps S6 and S7 shown in FIG. 11). Also, it is possible to omit an instruction to stop an operation by voice recognition of an emergency stop word.

[0086] As described above, in this embodiment, the same operations as in the first embodiment can be performed by operating the foot switch 60 and using voice commands with command words, thereby shortening processing time, reducing memory, and simplifying processing. Since the movement unit 40 does not operate unless the foot switch 60 is stepped on (turned on), malfunctions can be easily prevented. Note that the smartphone 80 may acquire the output signal of the foot switch 60 and perform similar processing on its side. In this case, for example, the movement unit 40 may transmit the output signal of the foot switch 60 to the smartphone 80, or the foot switch 60 may be connected to the smartphone 80.

[0087] <3. Modifications> Although the embodiments of the present invention have been specifically described above, the content of the present invention is not limited to the above-described embodiments, and various modifications based on the technical concept of the present invention are possible. For example, the configurations, processes, operations, methods, etc. of the above-described embodiments can be combined or substituted with each other without departing from the spirit of the present invention. Furthermore, it is possible to divide one thing into two or more things, combine two or more things into one, and even omit some parts.

[0088] For example, in the above-described embodiments, the case where the workbench 2 is voice-operated using the smartphone 80 has been described. However, the device for voice-operating the workbench 2 may be any device capable of performing the same processing as the smartphone 80, such as a mobile phone, tablet, wearable device, or personal computer. The workbench 2 itself may also have a device that supports the above-described voice operation. For example, when the moving unit 40 is used as a voice-operated device, the moving unit 40 has the following configuration. The control unit 422 of the moving unit 40 acquires a message obtained by voice recognition of an output signal from an internal or external microphone, and if the message contains an instruction word previously associated with a predetermined operation of the workbench 2, the moving unit 40 controls the operation of the workbench 2 to that predetermined operation. This achieves the same effect as voice operation on the smartphone 80.

[0089] In the above-described embodiments, the moving unit 40 includes four wheels 431a to 431d, each of which uses a so-called Mecanum wheel with multiple barrel-shaped rollers 432 centered around the axial direction of the axle. However, this is not limited to this. For example, the moving unit 40 may use a so-called omniwheel, which includes four wheels or three wheels arranged at the vertices of a triangle when viewed from above. Furthermore, for example, a combination of a Mecanum wheel and an omniwheel may be used. Note that the configuration of the moving unit 40 that moves the work table 2 in all directions along the installation surface P is not limited to these, and other configurations may also be employed. Furthermore, the moving unit 40 does not have to move the work table 2 in all directions along the installation surface P, as long as it moves the work table 2. For example, the moving unit 40 may move the work table 2 in a predetermined direction along the installation surface P, move the work table 2 up and down, or change the height of the work table 2. Furthermore, the moving unit 40 may be applied to operations of the work table 2 other than movement. For example, the on / off operation switches for various operations on the workbench 2, the speed control and power control of various operations, and the cancellation of alarms may be operated by voice.

[0090] In each of the above-described embodiments, the moving unit 40 is detachably attached to the main body 10 using the attachment unit 90, but the attachment structure of the moving unit 40 to the main body 10 is not limited to a specific one. For example, it may be fixed using a clamp, bolt, or the like. The moving unit 40 and the main body 10 do not need to be detachable, and may be configured as an integrated unit. The same applies to the ladder unit 20 and the handrail unit 30.

[0091] In each of the above-described embodiments, the structure of the main body 10 of the workbench 2 is described as being foldable and the height of the top plate 100 can be adjusted, but the workbenches to which the present invention can be applied are not limited to this and can be applied to tables of various structures and uses.

[0092] Furthermore, the first and second embodiments described above may be combined as appropriate. This can further improve safety. Furthermore, the work system 1 may have a configuration that allows manual operation using an operation lever, operation pad, or the like, in addition to the voice operation described above. Furthermore, in the second embodiment, a momentary foot switch 60 is exemplified as the switch that enables or disables voice operation, but the switch that enables or disables voice operation may be a switch other than a foot switch. The type of switch is not limited to a specific one, and may be a membrane switch, a pressure-sensitive switch, a touch sensor, a non-contact sensor, or the like.

[0093] <4. Application Examples> The present invention can be applied to work devices other than the work platform 2. Work devices include all objects (e.g., machines, equipment, instruments, devices, facilities, etc.) that are used at construction sites, such as civil engineering sites, architecture sites, and building sites, that require movement. The term "movement" here refers not only to the movement of the device itself or a portion of the device, but also encompasses other mechanical and electrical movements. Examples of work devices to which the present invention can be applied include transport devices such as dollies and pallet movers, elevating devices such as construction elevators and lifters, construction vehicles such as aerial work platforms and forklifts, mechanical construction devices such as fireproof mixers, mixers, concrete pumps, blowers, and compressors, and electrical equipment such as power breakers and battery chargers. Specifically, various operations of these work devices can be controlled by voice. Even devices that do not have a movement mechanism such as casters can be moved by voice control, similar to the work platform 2, by attaching a movement unit similar to the movement unit 40. The smartphone 80 may selectively control multiple types of work devices by voice. This allows multiple types of work devices to be operated by voice using a single smartphone 80, dramatically improving work efficiency. [Explanation of symbols]

[0094] 1···Work system, 2···Work table, 3···Operation unit, 10···Main body unit, 40···Moving unit, 80···Smartphone, 82···Microphone, 88···Control unit (smartphone side), 90···Mounting unit, 100···Foot switch, 422···Control unit (moving unit side), 882···Operation application

Claims

1. An information processing device for controlling the operation of the operation unit of a workbench having a top plate portion that functions as a work scaffold, legs that support the top plate portion, an operation unit that operates in an operable manner, a control unit that controls the operation of the operation unit, and a body portion that is a housing that mounts the control unit and is attached to the legs by an attachment structure, a control unit that generates an instruction signal for instructing the operation of the operation unit to perform the predetermined operation when an instruction word previously associated with the predetermined operation of the operation unit is included in a message obtained by speech recognition of an output signal from a microphone, and executes a process of transmitting the generated instruction signal to a workbench having the operation unit. An information processing device having the above.

2. the workbench includes a main body and a moving unit that moves the main body along an installation surface using the operating unit; The predetermined action is an action related to movement by the moving unit. The information processing device according to claim 1 .

3. The top plate functions as a work platform, a leg portion supporting the top plate portion; an operating unit that operates to be operable; a control unit that controls the operation of the operation unit; a body portion that is a housing that includes the control unit and is attached to the leg portion by an attachment structure; The control unit The information processing device controls the operation of the operation unit, and when a message obtained by speech recognition of an output signal from a microphone includes an instruction word previously associated with a predetermined operation of the operation unit, generates an instruction signal for instructing control of the operation of the operation unit to the predetermined operation, receives the instruction signal transmitted from an information processing device having a control unit that executes processing to transmit the generated instruction signal to a workbench having the operation unit, and executes processing to control the operation of the operation unit to the predetermined operation in accordance with the received instruction signal. Workbench.

4. A work system comprising a workbench having a top plate portion that functions as a work platform, legs that support the top plate portion, an operable operating portion, a control portion that controls the operation of the operating portion, and a body portion that is a housing that mounts the control portion and is attached to the legs by an attachment structure, and an information processing device that controls the operation of the operating portion, The information processing device includes: a control unit that, when a message obtained by speech recognition of an output signal from a microphone includes an instruction word associated in advance with a predetermined operation of the operation unit, generates an instruction signal for instructing the operation of the operation unit to be the predetermined operation, and executes a process of transmitting the generated instruction signal to a workbench having the operation unit; The control unit of the workbench includes: receiving the instruction signal transmitted from the information processing device, and executing a process of controlling the operation of the operation unit to the predetermined operation in response to the received instruction signal; Working system.

5. An information processing method for operating the operation of the operation unit of a workbench having a top plate portion that functions as a work platform, legs that support the top plate portion, an operation unit that operates in an operable manner, a control unit that controls the operation of the operation unit, and a body portion that is a housing that includes the control unit and is attached to the legs by an attachment structure, comprising: A process of generating an instruction signal for instructing the operation of the operation unit to perform the predetermined operation when an instruction word previously associated with the predetermined operation of the operation unit is included in a message obtained by speech recognition of an output signal from a microphone, and transmitting the generated instruction signal to a workbench having the operation unit. An information processing method that causes a computer to execute the above.

6. A program for operating the operation of the operation unit of a workbench having a top plate portion that functions as a work platform, legs that support the top plate portion, an operation unit that operates in an operable manner, a control unit that controls the operation of the operation unit, and a body portion that is a housing that mounts the control unit and is attached to the legs by an attachment structure, A process of generating an instruction signal for instructing the operation of the operation unit to perform the predetermined operation when an instruction word previously associated with the predetermined operation of the operation unit is included in a message obtained by speech recognition of an output signal from a microphone, and transmitting the generated instruction signal to a workbench having the operation unit. A program that causes a computer to execute the following.

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