JP6114418B2 - Remote controller - Google Patents

Description

  The present invention relates to a welding system and a remote controller, and more particularly to a welding system and a remote controller that can control a power supply device by wireless communication.

  FIG. 7 is a schematic block diagram of a conventional welding apparatus. Referring to FIG. 7, welding apparatus 500 includes a welding power source 510, a wire feeding device 600, a remote controller 620, and a welding torch 640.

  The welding power source 510 is supplied with electric power from the external power source via the connector 520. Welding power supply 510 and wire feeder 600 are connected by power cable 540 and control cable 548. The base material 650 to be welded and the welding power source 510 are connected by a welding ground cable 542.

  Shielding gas such as carbon dioxide is sent from the gas cylinder 530 to the wire feeder 600 via the gas hose 544. The wire feeding device 600 feeds the welding wire from the wire reel 610 to the welding torch 640.

  The cable connecting the wire feeding device 600 and the welding torch 640 feeds the welding wire and the shielding gas into the cable, and also supplies the voltage and current supplied from the welding power source 510 by the power cable 540 to the welding torch. To 640.

  The remote controller 620 is connected to the welding power source 510 by a control cable 546. The remote controller 620 transmits welding parameters such as a welding voltage V and a welding current I to the welding power source 510 through the control cable 546. The welding power source 510 outputs voltage and current to the power cable 540 so that the set welding voltage V and welding current I are realized in the welding torch 640.

Japanese Patent Laid-Open No. 10-305366

  When welding a large structure such as a ship, it is more convenient for the operator to move the wire feeding device 600 and the welding torch 640 without moving the welding power source 510. However, in order to enable such work, the lengths of the power cables 540 and 542, the control cables 546 and 548, and the gas hose 544 must be increased. In some cases, the length can be as long as 100 m.

  It is a burden for an operator to route a large number of such long cables. Even if the control cable is thinner than the power cable, the longer the length, the heavier the weight and the more difficult it is to carry.

  In general, the welding power source and the wire feeder are usually connected by a power cable and a communication cable. If the communication cable can be eliminated, the installation work of the welding apparatus is reduced. In particular, since the weight of the communication cable for connecting such a long distance is heavy, there is a problem that the burden on the operator is heavy.

  In order to eliminate the communication cable, as shown in Japanese Patent Laid-Open No. 10-305366 (Patent Document 1), it is conceivable to perform wireless communication. However, if only wireless is used, there is a risk that communication may be interrupted by obstructions, jamming waves, or the like. For example, when a hull such as a ship is welded as a large structure, wireless communication may be blocked by a bulkhead in the hull. In such a case, it is necessary to frequently move the position of the welding power source to ensure a prospect with the wireless command device.

  Moreover, when welding a large-sized structure, a some welding apparatus may be used simultaneously. Multiple welding devices are used by different operators. However, it is desirable that the conditions for welding the same structure are the same in a plurality of welding apparatuses. The optimum welding conditions vary depending on the type of structure and temperature. In such a case, a skilled worker determines the conditions and communicates the conditions to other workers by speaking.

  Thus, when work is performed using a plurality of welding apparatuses at the same time, it is desirable that a plurality of welding apparatuses and information desired to be shared between the workers can be easily communicated.

  An object of the present invention is to provide a welding system and a remote controller that can easily share information such as welding parameters set in a welding power source among a plurality of welding apparatuses.

In one aspect, the present invention is a remote controller capable of controlling a plurality of welding power supply devices. The remote controller selects a target device as a target of information transmission from among a plurality of welding power source devices according to a selection input command, a first wireless communication unit that wirelessly transmits information to the selected target device, and a sound Alternatively, an input device for inputting an image, an output device for outputting sound or an image, a selection switch for selecting a target device, and an emergency stop command are collectively transmitted to a plurality of welding power supply devices. And a control unit that controls the first wireless communication unit .

  According to the present invention, it becomes easy to share information among a plurality of welding apparatuses. In addition, sharing of information among a plurality of welding workers is facilitated.

It is a figure which shows schematic structure of the welding system of this Embodiment. It is a block diagram which shows the detail of a structure of the welding apparatus 1A of FIG. It is a figure for demonstrating an example of the specific shape and structure of a remote controller. It is a flowchart for demonstrating the outline of the process performed with a remote controller. It is a flowchart for demonstrating control which transmits data from welding apparatus 1A to welding apparatus 1B. 2 is a flowchart for explaining connection control between a basic link and an extended link in the configuration shown in FIG. 1. It is a schematic block diagram of the conventional welding apparatus.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In the drawings, the same or corresponding parts are denoted by the same reference numerals and description thereof will not be repeated.

FIG. 1 is a diagram showing a schematic configuration of the welding system of the present embodiment.
Referring to FIG. 1, the welding system includes welding apparatuses 1 </ b> A to 1 </ b> D and a broadcasting apparatus 2. Each of welding apparatuses 1A to 1D includes welding power supply apparatuses 10A to 10C, feeding apparatuses 100A to 100D for feeding welding wires, and remote controllers 120A to 120D.

  Hereinafter, communication executed in the welding system will be described. The welding system includes a plurality of welding power supply devices 10A to 10D and remote controllers 120A to 120D. The remote controller 120A selects a target device for information transmission from among the plurality of welding power supply devices 10A to 10D according to a selection input command input by the operator, and wirelessly transmits information to the selected target device. Including a first wireless communication unit 134A.

  Each of the plurality of welding power supply devices 10A to 10D includes second wireless communication units 16A to 16D and 106A to 106D that receive information transmitted from the first wireless communication unit 134A of the remote controller 120A, and the second wireless communication unit 16A. The control part 14 which controls welding based on the information received by -16D and 106A-106D, and the power supply part 12 which is controlled by the control part 14 and supplies electric power to a welding torch are included.

  Preferably, remote controller 120A collectively transmits information to a plurality of welding power supply devices 10A to 10D. The information to be transmitted includes a welding condition or an emergency stop command set in the power supply unit 12.

  When the remote controller 120A transmits information to the plurality of welding power supply devices 10A to 10D in a lump, the remote controller 120A transmits information to the welding power supply device 10A, and the wireless communication unit 16A of the welding power supply device 10A transmits the information of the welding power supply device 10B. The first path for transferring information to the wireless communication unit 16B and the second path for transmitting information from the wireless communication unit 134A of the remote controller to the wireless communication unit 16B of the welding power source apparatus 10B are configured to be usable.

  The communication from the wire feeding device 100A to the welding power source device 10A may be wired data communication. In the configuration example described later with reference to FIG. 2, communication from the wireless communication unit 106A to the wireless communication unit 16A is performed by power line communication (PLC).

  FIG. 2 is a block diagram showing details of the configuration of the welding apparatus 1A of FIG. Referring to FIG. 2, welding apparatus 1 </ b> A includes a welding power supply apparatus 10 </ b> A, a wire feeding apparatus 100 </ b> A, a remote controller 120 </ b> A, and a welding torch 140.

  The welding power supply apparatus 10A includes a power supply unit 12, a control unit 14, a wireless communication unit 16A, and a power line carrier communication unit 18. In this specification, the power line carrier communication unit is also referred to as a PLC (Power Line Communication) communication unit and is illustrated. The power supply unit 12 receives supply of power from the external power supply 20. The control unit 14 controls the power supply unit 12, the wireless communication unit 16 </ b> A, and the power line carrier communication unit 18.

  The power supply unit 12 and the wire feeding device 100A are connected by a power cable 160. The base material 150 to be welded and the power supply unit 12 are connected by a welding ground cable 162. Shielding gas such as carbon dioxide gas is sent from the gas cylinder 30 to the wire feeder 100A via the gas hose 164.

  The power line carrier communication unit 18 transmits a communication signal indicating transmission data given from the control unit 14 to the wire feeding device 100 </ b> A while being superimposed on the welding voltage or welding current of the power cable 160. The power line carrier communication unit 18 separates the communication signal superimposed on the power cable 160 and transmits the received data to the control unit 14.

  The communication between the wire feeding device 100A and the welding power source device 10A may be wired communication using a dedicated communication line or wireless communication instead of the power line carrier communication.

  16 A of wireless communication parts transmit the communication signal which shows the transmission data given from the control part 14 to 100 A of wire feeders by radio | wireless. Further, the wireless communication unit 16A receives a wireless signal from the wire feeding device 100A or the remote controller 120A and transmits the received data to the control unit 14.

  The wire feeding device 100A includes a feeding mechanism 102, a control unit 104, a wireless communication unit 106, a power line carrier communication unit 108, and a display 110. The feeding mechanism 102 feeds the welding wire 166 from the wire reel 111 to the welding torch 140.

  The cable connecting the wire feeding device 100A and the welding torch 140 is provided with a passage for feeding the welding wire and the shielding gas inside the cable, and the voltage supplied from the welding power source device 10A by the power cable 160, And current is sent to the welding torch 140.

  When the welding wire protruding from the tip of the welding torch 140 contacts the base material, an electric current flows and an arc is generated. The welding wire is fed by the feeding mechanism 102 at a speed corresponding to the welding speed. A shield gas is supplied around the arc to prevent oxidation of the weld.

  The remote controller 120 </ b> A includes an operation unit 122, a microphone 124, a speaker 126, a display device 128, a control unit 130, a battery 132, and a wireless communication unit 134.

  A worker who works using the welding torch 140 has a remote controller 120A that can specify which welding device or worker the information is transmitted to.

  The remote controller 120A wirelessly transmits and receives data to and from the wireless communication unit 106A of the wire feeding device 100A or the wireless communication unit 16A of the welding power supply device 10A by the wireless communication unit 134A. Since the remote controller 120A has a built-in battery 132, it is not necessary to be connected to the wire feeder 100A by a constant control cable.

  Note that while the wire feeding device 100A and the remote controller 120A are connected to charge the battery 132, the remote controller 120A and the wire feeding device 100A may be configured to perform wired communication. .

  The remote controller 120A transmits welding parameters such as welding voltage and welding current input by the operator to the operation unit 122 to the control unit 104 of the wire feeder 100A by wireless communication. The control unit 104 causes the power line conveyance communication unit 108 to superimpose a communication signal indicating a welding parameter set by the operator on the power cable 160 and transmit the communication signal to the welding power source apparatus 10A.

  The welding power source device 10 </ b> A outputs a voltage and current to the power cable 160 so that the set welding voltage and welding current are realized in the welding torch 140.

  Data such as voice is relayed from the wireless communication unit 134A of the remote controller 120A to the wireless communication unit 16A of the welding power source 10A via the wireless communication unit 106A of the wire feeding device 100A. When the radio wave condition is better when the radio communication unit 16A communicates directly, the radio communication unit 16A may directly transmit and receive.

  In addition, each of welding apparatuses 1B-1D of FIG. 1 can also be set as the structure similar to welding apparatus 1A demonstrated in FIG.

  Referring to FIGS. 1 and 2, remote controller 120 </ b> A can designate a partner (another operator's remote controller 120 </ b> B to 120 </ b> D or welding power supply apparatus 10 </ b> A to 10 </ b> D) to which information is transmitted.

  An operator working with the torch can collectively transmit information to the plurality of welding power supply apparatuses 10A to 10D using the remote controller 120A. For example, the welding conditions set by the skilled worker can be set at the same timing for welding power supply devices 10B to 10D other than the welding power supply device 10A used by the worker. Note that the batch transmission does not necessarily have to be performed simultaneously, and when the operator operates the remote controller 120A once, information indicating the same welding conditions is transmitted to a plurality of welding power supply devices at different times. You can do it.

  FIG. 3 is a diagram for explaining an example of a specific shape and configuration of the remote controller. Referring to FIG. 3, the remote controller 120A has a headset shape.

  Preferably, the remote controller 120A is used by being pressed against a headband 129 for fixing to the worker's head, a microphone 124 for inputting sound, an arm 125 for supporting the microphone 124, and the operator's ear. A speaker 126 that outputs sound and a remote controller main body 121 are included. The microphone 124 is an input device that inputs sound, and the speaker 126 is an output device that outputs sound. The remote controller main body 121 includes selection switches 122A to 122D for selecting a target device, a display 128, and an input unit 122E for inputting numerical values of welding parameters. The selection switches 122A to 122D and the input unit 122E correspond to the operation unit 122 in FIG.

  More preferably, the remote controller 120A further includes an additional camera unit 121A. The additional camera unit 121A is configured to be connectable to the main body 121. The additional camera unit 121A includes a camera 124A for photographing a welded portion and the like, a shutter button 122F for capturing an image of the camera 124A, and a small liquid crystal monitor 126A for displaying the photographed image. Similarly to the microphone 124, the camera 124A is an input device for capturing transmission data. Similar to the speaker 126, the small liquid crystal monitor 126A is an output device that indicates to the worker in a manner in which transmitted data can be recognized.

  If only the transferred image is to be viewed, only the small liquid crystal monitor 126A may be an additional unit. Further, the additional camera unit 121A may have a configuration in which the small liquid crystal monitor 126A and the camera 124A are integrated. Further, a camera 124A small liquid crystal monitor 126A may be integrated with the main body 121.

  More preferably, the remote controller 120A is configured to be able to communicate with the other remote controllers 120B to 120D in FIG. The information to be transmitted includes audio information for communication between a plurality of workers carrying the remote controller and another remote controller. The information to be transmitted may further include image information captured by the camera 124A. The image information may be any information of a still image or a moving image. An unfamiliar worker can transmit an image of a welded portion to an experienced worker and change the welding conditions in response to an instruction from the skilled worker. The selection switches 122A to 122D are configured to be able to input a selection input command that designates another remote controller as the target device.

  The remote controller 120A can communicate with other remote controllers 120B to 120D like a mobile phone or a transceiver.

  The wireless communication units 16A and 106A are provided in the welding power source device 10A and the wire feeding device 100A, respectively, and the microphone 124 and the speaker 126 are provided in the remote controller 120A. Even in this case, it becomes easy to transmit information to the worker by voice information. If voice recognition technology is used, an operator can also instruct welding power supply apparatus 10A by voice input.

  More preferably, the welding system shown in FIG. 1 further includes a broadcast device 2 that can transmit the sound of the local broadcast to the remote controller. In an environment like a welding site, there are many cases where the noise is loud, and it is difficult to hear on-site broadcasts such as calls. In such a case, by providing the headset with a speaker 126 that outputs sound at the ear like the remote controller 120A, it is possible to make it easy to hear the local broadcast.

  Broadcast of the premises where the welding apparatus is installed is directly transmitted from the broadcasting apparatus 2 to the wireless communication unit 134A of the remote controller 120A owned by the operator via the welding power supply apparatus 16A or the feeding apparatus 100A.

  The welding system shown in FIG. 1 constructs an environment in which N-to-M communication is possible by making the welding power supply device and the remote controller wireless. In addition, it is preferable that the welding system is configured to enable information communication between the welding power supply device and a radio device (such as a construction room) other than the remote controller owned by the operator.

  An operator who works using the welding torch 140 can simultaneously transmit emergency stop information from the remote controller 120A to the welding power supply devices 16A to 16D in an emergency. According to the emergency stop information from the worker, the welding power supply devices 16A to 16D that have received the information stop at the same timing. For example, such emergency stop information can be transmitted from the remote controller 120A when an accident occurs on the premises.

  Further, the internal state of the welding power source apparatus 10A can be transmitted to the operator via the remote controller 120A. The internal state of the welding power source apparatus 10A can be transmitted only to the remote controller 120A of the operator of the welding power source apparatus 10A, but in addition to that, it is transmitted to the remote controllers 120B to 120D of other registered operators. The welding system may be configured so that it can be transmitted to a remote controller (or receiver) owned by a supervisor who is not working.

  In addition, when an abnormality occurs in the communication using the power line carrier communication unit 18 and the power cable, the control unit 14 notifies the welding operator of the occurrence of the abnormality by communicating with the remote controller 120A through the wireless communication unit 16A. You may make it do.

  In the conventional configuration shown in FIG. 7, since the remote controller 620 is only wired communication, the operator can transmit the current / voltage set values only to the welding machine being operated. Was contacted only by other means (such as calling the worker).

  In this way, in an environment where a welding machine with a wireless function is used, a welding worker can make use of the large-capacity information communication capability of wireless communication to a plurality of other welding workers or welding power supply devices. A system for transmitting information (current / voltage set values, audio information, and image information) can be realized.

  On the other hand, it is also possible to transmit alarm information (status information) generated inside the welding power supply apparatus 10A to the welding operator who has the remote controller 120A from the welding power supply apparatus 10A.

  Preferably, when the current flowing through welding torch 140 or the voltage applied to welding torch 140 indicates an abnormality, control unit 14 in FIG. 2 transmits a signal indicating that a welding abnormality has occurred to remote controller 120A. To do. The remote controller 120A further includes a display 128 and a speaker 126 as a notification unit for notifying the occurrence of welding abnormality.

  FIG. 4 is a flowchart for explaining an outline of processing executed by the remote controller. 2 and 4, the control unit 130 of the remote controller 120A detects the presence or absence of private broadcasting from the broadcasting device 2 of FIG. 1 in step S1. When the local broadcast is detected in step S1, the control unit 130 receives the local broadcast by the wireless communication unit 134 in step S2, and the control unit 130 outputs the broadcast content from the speaker 126 in step S3.

  If the local broadcast is not detected in step S1, the control unit 130 detects the presence / absence of a transceiver request for transmission / reception from another remote controller in step S4. For example, when it is requested to transmit as a transceiver by operating the operation unit 122 of the remote controller 120A, or when another remote controller designates the remote controller 120A and performs transmission, the transceiver request is detected. If a transceiver request is detected in step S4, a transceiver operation, that is, an operation of transmitting / receiving voice to / from another remote controller is executed in step S5.

  If no transceiver request is detected in step S4, the process proceeds to step S6. In step S6, control unit 130 detects whether or not there is a request for transmitting welding control data (welding conditions such as welding current and welding voltage, and control data such as emergency stop) to the welding power source apparatus. When a transmission request for welding control data is detected in step S6, the input welding control data is transmitted to the designated welding power source apparatus in step S7.

  As described above, the remote controller 120A can perform processing of receiving a local broadcast, transmitting a transceiver function, and transmitting welding control data. In addition, when the additional camera unit 121A shown in FIG. 3 is connected to the main body 121, in addition to the processing of the flowchart shown in FIG. The process of transmitting to the remote controller is executed.

  FIG. 5 is a flowchart for explaining control for transmitting data from welding apparatus 1A to welding apparatus 1B. Referring to FIGS. 1 and 5, in welding apparatus 1 </ b> A, it is determined by remote controller 120 </ b> A whether there is a welding apparatus selection input. If there is no selection input for the welding apparatus, the process of step S11 is executed again, and the apparatus waits for input. If there is a selection input at the remote controller 120A in step S11, the process proceeds to step S12. In the flowchart of FIG. 5, an example in which the selection target is the welding apparatus 1 </ b> B is shown, but when another welding apparatus is selected, similar processing is performed on the other welding apparatus.

  In step S12, the ID of the selected welding apparatus 1B is transmitted to the welding apparatus 1B. At this time, in welding apparatus 1B, whether or not a connection request is received is determined in step S101. Until the connection request specifying the ID of the welding apparatus 1B is received in step S101, the process of step S101 is executed again and is in a reception waiting state.

  If a connection request specifying the ID of the welding apparatus 1B is received in step S101, it is determined in step S102 whether or not the link is permitted. The link permission may be automatically performed, or the operator may inquire whether or not the link connection is possible, and the worker may manually designate whether or not the link connection is possible.

  If the link is permitted in step S102, the process proceeds to step S103, and the welding apparatus 1B transmits a response indicating that the link is established to the welding apparatus 1A, and the process further proceeds to step S105. On the other hand, if the link is rejected in step S102, the process proceeds to step S104, the welding apparatus 1B transmits a link rejection response to the welding apparatus 1A, and the process further proceeds to step S106.

  In welding apparatus 1A, after transmitting the ID in step S12, a response from welding apparatus 1B is detected in step S13. When a response is detected in step S13, the process proceeds to step S14, and welding apparatus 1A determines whether or not a link with welding apparatus 1B has been established based on the response content from welding apparatus 1B. In step S14, when the link is established, the process proceeds to step S15, and the welding apparatus 1A transmits voice data or welding control data to the welding apparatus 1B. When the additional camera unit 121A shown in FIG. 3 is connected to the main body 121, processing for transmitting image data to another remote controller designated in response to a transmission request for captured image data is executed. Is done. In step S106, the control is returned to the main routine.

  The transmitted voice data or welding control data is received by the welding apparatus 1B in step S105. Further, when the image data is transmitted, the transmitted image data is also received by the welding apparatus 1B. In step S106, the control is returned to the main routine.

  If it is determined in step S14 that the link has not been established, the process proceeds to step S16, a communication error display is displayed on the display 128, and control is returned to the main routine in step S17.

  FIG. 6 is a flowchart for explaining connection control between the basic link and the extension link in the configuration shown in FIG. When the remote controller 120A of FIG. 1 transmits information to the first welding power source device 10A and the second welding power source device 10B among the plurality of welding power source devices 10A to 10D in a lump, the first welding power source device A first path for transmitting information to 10A and transferring information from the second wireless communication unit 16A of the first welding power supply device 10A to the second wireless communication unit 16B of the second welding power supply device 10B, and a first wireless communication of the remote controller It is configured to be able to use the second route for transmitting information directly from the unit 134A to the second wireless communication unit 16B of the second welding power supply device 10B. The remote controller 120A uses a communicable route of the first route and the second route.

  For example, the first route (wireless communication unit 134A → wireless communication unit 106A → wireless communication unit 16A → wireless communication unit 16B) is used as the basic link, and the second route (wireless communication unit 134A → wireless communication unit 16B) is used as the basic link. It can be used as an expansion link when it cannot be used. Thus, for example, even when there is a partition that blocks radio waves between the welding power supply apparatus 10A and the welding power supply apparatus 10B, information is transmitted directly from the remote controller 120A to the welding power supply apparatus 10B. If it is possible, the same information can be transmitted to the plurality of welding power supply apparatuses 10A and 10B.

  Referring to FIGS. 1 and 6, when transmitting control data such as welding conditions and emergency stop from remote controller 120A to welding power source apparatus 10B of welding apparatus 1B in welding apparatus 1A, welding apparatus 1A first performs steps. In S201, it is determined whether or not communication is possible via the basic link route.

  Whether or not communication is possible may be determined by any control unit of the remote controller 120A, the wire feeding device 100A, and the welding power source device 10A.

  If it is determined in step S201 that communication is possible via the basic link path, the process proceeds to step S202, where the wireless communication unit 134A of the remote controller 120A uses the basic link path to connect the wire feeder 100A. Audio data and welding control data are transmitted to the wireless communication unit 16B of the welding power supply apparatus 10B via the wireless communication unit 106A and the wireless communication unit 16A of the welding power supply apparatus 10A.

  If the data includes information to be transmitted to other workers such as voice data, image data, and numerical values to be shared with other welding apparatuses, data communication (for example, from the welding power source apparatus 10B) The data is sent to the wire feeding device 100B by PLC), and the data is sent from the wireless communication unit 106B to the wireless communication unit 134B by wireless communication to the remote controller 120B. From the remote controller 120B having the same configuration as in FIG. 3, sound is output from the speaker 126, a numerical value is displayed on the display 128, or a captured image is displayed on the small liquid crystal monitor 126A of the additional camera unit 121A. .

  If it is determined in step S102 that communication is not possible on the basic link route, the process proceeds to step S203. In step S203, welding apparatus 1A determines whether or not communication is possible via the extended link path.

  The determination as to whether communication is possible may be configured to be performed by any of the control units of the remote controller 120A, the wire feeding device 100A, and the welding power source device 10A, but may be performed by the control unit of the remote controller 120A. preferable.

  If it is determined in step S203 that communication is possible via the extended link path, the process proceeds to step S204, and the welding power supply apparatus is directly connected from the wireless communication unit 134A of the remote controller 120A using the extended link path. Audio data and welding control data are transmitted to the 10B wireless communication unit 16B. If the data includes information to be transmitted to other workers such as voice data, image data, and numerical values to be shared with other welding apparatuses, data communication (for example, from the welding power source apparatus 10B) The data is sent to the wire feeding device 100B by PLC), and the data is sent from the wireless communication unit 106B to the wireless communication unit 134B by wireless communication to the remote controller 120B. The data is directly transmitted from the remote controller 120A to the remote controller 120B by wireless communication. May be configured to transmit.

  If it is determined in step S203 that communication via the extended link path is impossible, a message indicating a communication error is displayed on the display unit of the remote controller 120A in step S205. In this case, an error message may flow from the speaker.

  After any of the processes in steps S202, S204, and S205 is executed, control is returned to a predetermined main routine in step S206.

  As described above, according to the welding system of the present embodiment, it is possible to collectively control a plurality of welding power sources. In addition, other workers can share the setting conditions of skilled workers. Furthermore, since the state of the welding power supply device at a remote location can be known, it is possible to determine how the worker should act while staying at the work site without going to the location of the welding power supply device. it can.

  In addition, communication with other workers at the work site can be performed by the transceiver function. Furthermore, it is possible to transfer an image of a welded part or the like taken at a work site to another worker and receive an instruction from the other worker.

  The embodiment disclosed this time should be considered as illustrative in all points and not restrictive. The scope of the present invention is defined by the terms of the claims, rather than the description above, and is intended to include any modifications within the scope and meaning equivalent to the terms of the claims.

  1A to 1D welding device, 2 broadcasting device, 10A to 10D welding power supply device, 12 power supply unit, 14, 104, 130 control unit, 16A to 16D, 106A to 106D, 134A to 134D wireless communication unit, 18, 108 power line carrier communication Part, 20 external power source, 30 gas cylinder, 100A to 100D wire feeding device, 102 feeding mechanism, 110, 128 display, 111 wire reel, 120A to 120D remote controller, 121 remote controller main body part, 121A additional camera unit, 122 Operation unit, 122A to 122D selection switch, 122E input unit, 122F shutter button, 124 microphone, 125 arm, 126 speaker, 129 headband, 132 battery, 140 welding torch, 150 base material, 160 power Cable, 162 welded grounding cable, 164 gas hose, 166 welding wire.

Claims (5)

A remote controller capable of controlling a plurality of welding power supply devices,
The remote controller is
A first wireless communication unit that selects a target device for information transmission from among the plurality of welding power source devices according to a selection input command, and wirelessly transmits information to the selected target device;
An input device for inputting sound or images;
An output device for outputting sound or images;
A selection switch for selecting the target device;
A remote controller comprising: a first control unit that controls the first wireless communication unit so as to collectively transmit an emergency stop command to the plurality of welding power supply devices. Each of the previous SL plurality of welding power supply,
A second wireless communication unit that receives the information transmitted from the first wireless communication unit;
A second control unit for controlling welding based on the information received by the second wireless communication unit;
The remote controller according to claim 1, further comprising: a power supply unit that is controlled by the second control unit and supplies power to the welding torch. The remote controller is configured to be able to communicate with other remote controllers,
The information includes audio information for communicating between a plurality of workers carrying the remote controller and the other remote controller,
The remote controller according to claim 1, wherein the selection switch is configured to be able to input the selection input command for designating the other remote controller as the target device.   The remote controller according to claim 1, wherein the first wireless communication unit is configured to be able to receive private broadcast audio. The remote controller is
The remote controller according to claim 1, further comprising a notifying unit for notifying occurrence of welding abnormality in any of the plurality of welding power supply devices .

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