JP2021057513A - Board work device and method for remote controlling board work device - Google Patents

Abstract

To provide a technique capable of early completing the remote control of a board work device while suppressing a deterioration in work performance of the board work device.SOLUTION: A surface mounter performing mounting work on a board includes a communication section to communicate with a terminal unit 61, and a control section. The control section executes: control processing of controlling each part of the surface mounter so that predetermined work is performed; reception processing of establishing a communication with the terminal unit 61 via the communication section and accepting, from the terminal unit 61, the remote control for the surface mounter; and inhibition processing of inhibiting the remote control from the terminal unit 61, depending on that the CPU usage rate of the control section becomes equal to or more than a first threshold when the communication with the terminal unit 61 is established.SELECTED DRAWING: Figure 4

Description

The techniques disclosed herein relate to a substrate working apparatus and a remote control method for the substrate working apparatus.

Conventionally, screen printing machines, dispensers, surface mounters, and the like are known as board working devices that perform predetermined work on a board. Generally, the board working apparatus includes an operation unit, and the operator can perform various operations on the substrate working apparatus by operating the operation unit.
In such a board work device, in addition to operating the operation unit, there is also known that the board work device can be remotely controlled from an external terminal device connected by a communication network (see, for example, Patent Document 1). .. Specifically, Patent Document 1 describes that a remote operation right is set for a management computer (corresponding to a terminal device), and a processing device (corresponding to a board work device) is remotely operated from the management computer. There is.

Further, in Patent Document 1, in a state where the remote operation right is set for the management computer, when there is a request for operation by the input unit provided in the processing device, or when the processing device is specified in advance. It is described that the remote operation right is released when an operation (opening / closing of the safety cover, operation of the stop button, etc.) is performed.

JP-A-2017-143169

According to the technique described in Patent Document 1 described above, for example, when there is a request for operation by the input unit while performing maintenance work of the processing device by remote operation, or when a specific operation is performed on the processing device, Since the remote operation right is released, the time when the maintenance work is completed may be delayed.

In the present specification, a technique is disclosed in which remote control of a substrate work apparatus can be completed at an early stage while suppressing deterioration of the work performance of the substrate work apparatus.

(1) The board work device disclosed in the present specification is a board work device that performs a predetermined work on a board, and includes a communication unit for communicating with a terminal device and a control unit, and controls the above. The unit establishes a control process for controlling each part of the board work device to perform the predetermined work and communication with the terminal device via the communication unit, and remotely controls the board work device from the terminal device. Remote operation from the terminal device is prohibited according to the reception process for accepting the operation and the processing load of the control unit exceeding the first threshold value when communication with the terminal device is established. Prohibition processing and execution.

The above-mentioned "prohibit remote control from the terminal device when the processing load of the control unit exceeds the first threshold value" always means that the processing load of the control unit exceeds the first threshold value. This includes not only the case where remote control is prohibited, but also the case where remote control is prohibited when the processing load of the control unit exceeds the first threshold value and another condition is satisfied. Therefore, remote control may not be prohibited even if the processing load exceeds the first threshold value.

When the processing load of the control unit is low, the work performance of the board work device is unlikely to deteriorate even if the board work device is remotely controlled. Therefore, the work performance of the board work device can be remotely controlled while being suppressed. However, in the technique described in Patent Document 1 described above, the remote control right is released regardless of the processing load of the control unit when there is a request for operation by the input unit or when a specific operation is performed on the processing device. Therefore, even if the remote control can be performed while suppressing the deterioration of the work performance of the processing device, the remote control cannot be performed. Therefore, the time when the remote control for the board working device is completed may be delayed.

According to the above-mentioned board work apparatus, remote control is not prohibited when the processing load of the control unit is low (when it is less than the first threshold value). Therefore, when the operation unit of the board work device is operated or when a specific operation is performed on the board work device, the remote control is continued as compared with the case where the remote control is prohibited regardless of the processing load of the control unit. There is a high possibility that it can be done. Therefore, there is a high possibility that the remote control can be completed at an early stage.

However, if remote control is still permitted, when the board work device starts work, the processing load of the control unit increases due to the remote control being performed during the work, and each part of the board work device is controlled. There is a possibility that the execution of the control process for performing the predetermined work may be hindered. If the execution of the control process is hindered, the work performance of the board work apparatus deteriorates.
According to the above-mentioned board work apparatus, remote control is prohibited when the processing load of the control unit exceeds the first threshold value, so that the work performance may be deteriorated due to the remote control being performed during the work. It is suppressed.
Therefore, according to the above-mentioned board work device, remote control of the board work device can be completed at an early stage while suppressing deterioration of the work performance of the board work device.

(2) In the prohibition process, the control unit may prohibit remote control from the terminal device by disconnecting communication with the terminal device.

According to the above-mentioned board working device, remote control from the terminal device can be prohibited by disconnecting the communication with the terminal device.

(3) In the prohibition process, the control unit satisfies a predetermined precondition that the processing load of the control unit is equal to or higher than the first threshold value and the substrate work apparatus starts the work. If this is the case, or if the processing load of the control unit is equal to or greater than the first threshold value for a certain period of time or longer and the predetermined preconditions are satisfied, remote control from the terminal device is prohibited. You may.

If some processing is started by the control unit of the board work device while communication with the terminal device is established, the processing performance of the processing may be deteriorated due to the remote control being performed. However, if the predetermined precondition that is the premise that the board work device starts the work is not satisfied, the process is not a control process that controls each part of the board work device to perform the predetermined work. Does not affect the work performance of the work.

According to the above-mentioned board working device, even if the processing load of the control unit becomes equal to or higher than the first threshold value when communication with the terminal device is established, or the state of being equal to or higher than the first threshold value continues for a certain period of time or longer. Even so, if the predetermined precondition that is the premise that the board work device starts the work is not satisfied, the remote control from the terminal device is not prohibited, so that the support person can continue the remote control. Therefore, when the processing load of the control unit becomes equal to or higher than the first threshold value, or when the state of being equal to or higher than the first threshold value continues for a certain period of time or longer, remote control is prohibited even if the precondition is not satisfied. Compared to, the possibility of completing remote control at an early stage is higher.

According to the above-mentioned board work apparatus, when the condition that "the processing load of the control unit is equal to or higher than the first threshold value and the precondition is satisfied" is satisfied by the subsequent establishment of the precondition, or " If the condition that the processing load of the control unit is equal to or higher than the first threshold value continues for a certain period of time or more and the precondition is satisfied, remote control is prohibited. It is possible to suppress the deterioration of work performance.

(4) The precondition may be that the state of the board work apparatus is in the operation ready state.

If the board working device is not ready for operation, the board working device cannot start work immediately. If the board work device cannot start work immediately, the work performance of the board work device does not deteriorate even if the board work device is remotely controlled from the terminal device.
According to the above-mentioned board working device, even if the processing load of the control unit becomes equal to or higher than the first threshold value when communication with the terminal device is established, or the state of being equal to or higher than the first threshold value continues for a certain period of time or longer. Even so, if the state of the board work device is not the operation ready state, the remote control from the terminal device is not prohibited, so that the support staff is more likely to be able to continue the remote control. Therefore, it is more likely that the remote control can be completed at an early stage.

(5) In the reception process, the control unit receives a connection request from the terminal device when the processing load of the control unit is equal to or greater than a second threshold value equal to or less than the first threshold value, or. If the processing load of the control unit is equal to or higher than the second threshold value for a certain period of time or longer at the time when the connection request is received, communication with the terminal device may not be established.

When the processing load of the control unit when the connection request from the terminal device is received is equal to or higher than the second threshold value, or when the connection request is received, the processing load of the control unit is constant to be equal to or higher than the second threshold value. If communication with the terminal device is established for more than an hour, the processing load of the control unit may be further increased due to remote control, which may reduce the work performance of the board work device. ..

According to the above-mentioned board work device, when the processing load of the control unit when the connection request from the terminal device is received is equal to or higher than the second threshold value, or when the connection request is received, the processing load of the control unit is the second. If the state of being equal to or higher than the threshold value of is continued for a certain period of time or longer, communication with the terminal device is not established, so that it is possible to suppress deterioration of the work performance of the board work device due to remote control.

In the reception process, the control unit receives a connection request from the terminal device when the processing load of the control unit is equal to or greater than a second threshold value equal to or lower than the first threshold value, or the connection request. Even if the processing load of the control unit is equal to or higher than the second threshold value for a certain period of time or longer at the time of receiving the above, the substrate work apparatus is premised on starting the work. If the preconditions are not satisfied, communication with the terminal device may be established.

If a predetermined precondition that is a prerequisite for the board work device to start work is not satisfied, establishing communication with the terminal device does not affect the work performance of the work on the board. According to the above-mentioned board work device, if a predetermined precondition that is a prerequisite for the board work device to start work is not satisfied, communication with the terminal device is established, so that remote control may be started early. It gets higher. As a result, it is more likely that the remote control can be completed early.

(6) The remote control method disclosed in the present specification is a remote control method of a board work device that performs a predetermined work on a board, and a control unit of the board work device controls each part of the board work device. A control step for performing the predetermined work, a reception step in which the control unit establishes communication with the terminal device via the communication unit, and receives remote control of the board work device from the terminal device, and the terminal. A prohibition step in which the control unit prohibits remote control from the terminal device in response to the processing load of the control unit becoming equal to or higher than the first threshold value when communication with the device is established. Including.

According to the above-mentioned remote control method, the remote control of the board work device can be completed at an early stage while suppressing the deterioration of the work performance of the board work device.

(7) The processing load may be a processing load due to a communication-related process.

In remote control, communication-related processes are executed to send screen data and log data. Therefore, the processing load of the communication-related process increases. Since the processing load can be grasped for each process, remote control from the terminal device may be prohibited when the processing load by the communication-related process becomes equal to or higher than the first threshold value.

The invention disclosed herein can be realized in various aspects such as devices, methods, computer programs for realizing the functions of these devices or methods, recording media on which the computer programs are recorded, and the like.

Schematic diagram of the component mounting system according to the first embodiment Top view of surface mounter Block diagram showing the electrical configuration of the surface mounter Conceptual diagram of remote control Schematic diagram for explaining the operation of the remote control program Timing chart according to the second embodiment

<Embodiment 1>
The first embodiment will be described with reference to FIGS. 1 to 5. In the following description, the reference numerals of the drawings may be omitted for the same constituent members except for some parts.

(1) Component mounting system The component mounting system 1 will be described with reference to FIG. The component mounting system 1 is a system for mounting components on a board, and includes a component mounting line 10, a management computer 11, and a firewall 12.

(1-1) Management computer The management computer 11 is a computer that manages the component mounting line 10. The management computer 11 is communicably connected to a plurality of board work devices 15 constituting the component mounting line 10 via a communication network 13 such as a LAN (Local Area Network). Further, the management computer 11 is communicably connected to the firewall 12 via a communication network 14 such as a LAN, and also performs a process of relaying communication when the board work device 15 communicates with an external device.

(1-2) Firewall The firewall 12 is a computer for protecting from unauthorized access from the outside. Although the fire wall 12 is a computer, it is schematically shown as a wall in FIG. The firewall 12 is set to allow the minimum necessary communication with the outside in order to enable the board work apparatus 15 to be remotely controlled from the outside through the management computer 11.

(1-3) Parts mounting line The parts mounting line 10 includes a loader 16, a screen printing machine 17, a printing inspection machine 18, a dispenser 19, a plurality of surface mounting machines 20, a post-mounting appearance inspection machine 21, a reflow device 22, and a post-curing. A visual inspection device 23 and an unloader 24 are provided, and these are connected in series via a plurality of conveyors 25.

The loader 16 is a device that supplies the substrate housed in the rack to the screen printing machine 17. The screen printing machine 17 is a device that forms a circuit by screen printing (an example of a predetermined operation) solder paste on the surface of a substrate using a mask. The printing inspection machine 18 is a device that inspects (an example of a predetermined operation) a circuit screen-printed by the screen printing machine 17. The dispenser 19 is a device for applying an adhesive to a substrate (an example of a predetermined operation).

The surface mounter 20 is a device for mounting components on a substrate (an example of a predetermined operation). The configuration of the surface mounter 20 will be described later. The post-mounting visual inspection machine 21 is a device that inspects the appearance of the substrate after the components are mounted by the surface mounting machine 20 (an example of a predetermined operation). The reflow device 22 is a device that melts the solder paste at a high temperature and electrically connects the component and the electrode (so-called land) on the substrate (an example of a predetermined operation).
The post-curing visual inspection device 23 is a device that inspects the appearance of the substrate after the solder paste melted by the reflow device 22 is cured. The unloader 24 is a device for storing the substrate sent out from the visual inspection device 23 after curing in a rack.

The screen printing machine 17, the printing inspection machine 18, the dispenser 19, the plurality of surface mounting machines 20, the post-mounting visual inspection machine 21, the reflow device 22, and the post-curing visual inspection device 23 are examples of the substrate working device 15, respectively. .. In the following description, the surface mounter 20 will be described as an example of the substrate working device 15.

(2) Surface Mount Machine The configuration of the surface mount machine 20 will be described with reference to FIG. In the following description, the left-right direction shown in FIG. 2 is referred to as the X direction, and the front-rear direction is referred to as the Y direction. Further, in the following description, the right side shown in FIG. 2 is referred to as an upstream side, and the left side is referred to as a downstream side.

The surface mounter 20 includes a conveyor 30 that conveys the substrate P, a backup device (not shown), four tape component supply devices 31 that supply components E mounted on the substrate P, and components E supplied by the tape component supply device 31. Is provided with a component mounting device 32 for mounting the above on the board P.
The conveyor 30 carries the substrate P from the upstream side in the X direction to the working position A, and carries out the substrate P on which the component E is mounted at the working position A to the downstream side. The conveyor 30 includes a pair of conveyor belts 30A and 30B that circulate and drive in the X direction, a conveyor drive motor 54 that drives the conveyor belts 30A and 30B (see FIG. 3), and the like. The rear conveyor belt 30A can be moved in the front-rear direction, and the distance between the two conveyor belts 30A and 30B can be adjusted according to the width of the substrate P.

A backup device (not shown) is located below the working position A. The backup device includes a plurality of backup pins set at positions according to the model of the substrate P, and when the substrate P is conveyed to the working position A, the backup pins are raised to support the substrate P from below.

The tape component supply devices 31 are arranged at two locations in the X direction on both sides of the component mounting device 32 in the Y direction, for a total of four locations. A plurality of feeders 33 are attached to these tape component supply devices 31 side by side in the X direction. Each feeder 33 is provided with a reel on which a component tape containing a plurality of components E is wound, an electric tape delivery device for pulling out the component tape from the reel, and the like, and is provided at the end on the work position A side. Parts E are supplied one by one from the specified component supply positions.
Although the tape component supply device 31 will be described here as an example of the component supply device, the component supply device may be a so-called tray feeder that supplies a tray on which the component E is placed, or may supply a semiconductor wafer. It may be something to do.

The component mounting device 32 includes a head unit 34, a head moving unit 35 that moves the head unit 34 in the X and Y directions within a predetermined movable range, a substrate imaging camera 36, a component imaging camera 37, and the like.

The head unit 34 includes a plurality of mounting heads 34A arranged in a row, a Z-axis servomotor 52 that raises and lowers each mounting head 34A individually (see FIG. 3), and an R-axis that simultaneously rotates each mounting head 34A around an axis. It has a servomotor 53 (see FIG. 3) and the like. The mounting head 34A sucks and releases the component E, and has a nozzle shaft and a suction nozzle detachably attached to the lower end of the nozzle shaft. Negative pressure and positive pressure are supplied to the suction nozzle from an air supply device (not shown) via a nozzle shaft. The suction nozzle sucks the component E by supplying a negative pressure, and releases the component E by supplying a positive pressure.
Here, an in-line type head unit 34 in which a plurality of mounting heads 34A are arranged in a row will be described as an example, but the head unit 34 is, for example, a so-called rotary head in which a plurality of mounting heads 34A are arranged on the circumference. It may be.

The head moving portion 35 includes a beam 35A that supports the head unit 34 so as to be reciprocally movable in the X direction, a pair of Y-axis guide rails 35B that support the beam 35A so that the beam 35A can be reciprocated in the Y direction, and a head unit 34. It includes an X-axis servomotor 50 that reciprocates in the direction, a Y-axis servomotor 51 that reciprocates the beam 35A in the Y direction, and the like.

The two component imaging cameras 37 are provided between the two tape component supply devices 31 arranged in the X direction, respectively. The component imaging camera 37 is for capturing an image of the component E attracted to the mounting head 34A from below to recognize the rotation angle of the component E with respect to the mounting head 34A, the component shape, and the like.
The substrate imaging camera 36 is provided in the head unit 34. The substrate imaging camera 36 is for detecting the position and inclination of the substrate P by imaging a fiducial mark (not shown) attached to the substrate P.

The electrical configuration of the component mounting device 32 will be described with reference to FIG. The component mounting device 32 includes a control unit 41 and an operation unit 42. The control unit 41 includes an arithmetic processing unit 43, a motor control unit 44, a storage unit 45, an image processing unit 46, an external input / output unit 47, a feeder communication unit 48, a communication unit 49, and the like.

The arithmetic processing unit 43 includes a CPU, ROM, RAM, and the like, and controls each unit of the component mounting device 32 by executing various programs stored in the ROM and the storage unit 45.
The motor control unit 44 controls the rotation of each motor such as the X-axis servo motor 50, the Y-axis servo motor 51, the Z-axis servo motor 52, the R-axis servo motor 53, and the conveyor drive motor 54 under the control of the arithmetic processing unit 43. To do.

The storage unit 45 is a storage device including a non-volatile semiconductor memory, a hard disk, or the like as a storage medium in which data is not erased even when the power is turned off. Various programs and data are stored in the storage unit 45.
Various programs include an operating system (OS: Operating System), an operation program described later, a remote operation program (more specifically, a program on the mounting machine side), and a load monitoring program.
The various data include information on the number of boards P to be produced and the model, information on the mounting coordinates and mounting angles of the component E, information on the mounting order of the component E, log data, and the like. The log data is a value measured at predetermined time by various sensors 55 included in the surface mounter 20, image data captured by the substrate imaging camera 36 and the component imaging camera 37, and the log data at predetermined time in the XY direction of the mounting head 34A. The position, the position of the component tape at predetermined time intervals, and the like. Log data is not limited to these.

The image processing unit 46 is configured to capture image signals output from the component image pickup camera 37 and the substrate image pickup camera 36.
The external input / output unit 47 is a so-called interface, and is configured to capture detection signals output from various sensors 55 provided in the main body of the component mounting device 32. Further, the external input / output unit 47 is configured to perform operation control on various actuators 56 (including an air supply device) based on a control signal output from the arithmetic processing unit 43.

The feeder communication unit 48 is connected to each feeder 33, and controls a plurality of feeders 33 in an integrated manner.
The communication unit 49 is hardware for the control unit 41 to communicate with the management computer 11.

The operation unit 42 includes a display unit 42A such as a liquid crystal display, an input unit 42B having a touch panel and various operation buttons, a servo switch 42C, an emergency stop switch 42D, and the like. The operator of the surface mounter 20 can perform various operations on the surface mounter 20 by operating the input unit 42B.

The servo switch 42C and the emergency stop switch 42D are switches operated by the operator. When the operator operates the servo switch 42C, a servo-on signal is output to the control unit 41. When the operator operates the emergency stop switch 42D, a servo-off signal is output to the control unit 41. A current breaker (for example, a relay) is provided on the current path for supplying electric power to each servomotor. When the servo on signal is output, the control unit 41 closes the current cutoff device so that the servo motor can be energized (in other words, the surface mounter 20 can start the mounting work at any time), and when the servo off signal is output, the current cutoff is performed. Open the device so that the servo motor cannot be energized. In the following description, the state in which the current cutoff device is closed is called servo-on, and the state in which it is open is called servo-off. Servo-on is an example of the operation ready state.

Although the case where the current cutoff device is provided on the current path for supplying electric power to each servomotor will be described here as an example, the current cutoff device may not be provided. In that case, the control unit 41 may turn on a predetermined flag when the servo on signal is output, and turn off the flag when the servo off signal is output. Then, the control unit 41 may not energize each servomotor when the flag is off.

(3) Operation program, remote operation program and load monitoring program An operation program executed by the surface mounter 20, a remote operation program executed by the surface mounter 20 and the terminal device 61 of the call center 60 described later, and surface mounter. The load monitoring program executed by the machine 20 will be described.

(3-1) Operation Program The operation program is a program for performing various operations (various settings, operation instructions, extraction of log data, transmission of extracted log data, etc.) on the surface mounter 20. The operation program is started when the power of the surface mounter 20 is turned on. When the operation program is started, the operation screen is displayed on the display unit 42A. The operator can perform the various operations described above by operating the input unit 42B while looking at the operation screen.

For example, when extracting log data, the operator operates the operation unit 42 to display an operation screen for inputting log data extraction conditions. Then, the operator inputs the extraction conditions on the displayed operation screen. Further, for example, when transmitting log data, the operator displays an operation screen for designating the destination, and inputs the file name and destination of the log data to be transmitted on the displayed operation screen.

(3-2) Remote Control Program The remote control program will be described with reference to FIGS. 4 and 5. As shown in FIG. 4, the firewall 12 of the component mounting line 10 is communicably connected to the terminal device 61 of the call center 60 via the cloud network 62 on the Internet. The call center 60 is a department of the manufacturer of the surface mounter 20, and is a department that provides after-sales service to customers. The terminal device 61 is a so-called personal computer.

The remote control program is a program for remotely controlling the surface mounter 20 from the terminal device 61. The remote control program is composed of a mounting machine side program executed by the surface mounting machine 20 and a terminal side program executed by the terminal device 61 of the call center 60. Since the remote control program is commercially available, a commercially available remote control program can also be used.

The general operation of the remote control program will be schematically described with reference to FIG. The operation described below is an example, and the operation of the remote control program is not limited to the operation described below.
The mounting machine side program executed by the surface mounting machine 20 is executed as a resident program (also referred to as a service). When the mounting machine side program receives a connection request from the terminal side program executed by the terminal device 61, the mounting machine side program establishes communication with the terminal side program. As a result, the terminal device 61 is remotely connected to the surface mounter 20.

When the mounting machine side program establishes communication with the terminal side program, the mounting machine side program transmits screen data for displaying the operation screen to the terminal side program. When the terminal-side program receives the screen data, the operation screen represented by the screen data is displayed on the display unit 61A of the terminal device 61. As a result, the same operation screen is simultaneously displayed on the display unit 42A of the surface mounter 20 and the display unit 61A of the terminal device 61.

When the input device (mouse, keyboard, touch panel, etc.) of the terminal device 61 is operated while the operation screen is displayed on the display unit 61A of the terminal device 61, the operation information is transmitted from the terminal side program to the mounting machine side program. Will be done. The operation information transmitted to the mounting machine side program is sent to the operation program via the OS. As a result, the operation screen displayed on the display unit 42A of the surface mounter 20 can be remotely controlled from the terminal device 61.

Here, the case where the same operation screen is displayed simultaneously on the display unit 42A of the surface mounter 20 and the display unit 61A of the terminal device 61 has been described as an example, but when performing remote control, the display unit 42A of the surface mounter 20 has been described. The operation screen does not have to be displayed.
Remote operations are accepted for the process of the mounting machine-side program establishing communication with the terminal-side program, the process of sending screen data to the terminal-side program, and the process of sending the operation information received from the terminal-side program to the OS. This is an example of reception processing and reception steps.

Next, the flow of remote control using the remote control program will be described with reference to FIG. When some abnormality occurs in the surface mounter 20, normally, the operator 70 of the surface mounter 20 operates the operation unit 42 of the surface mounter 20 to collect log data, setting data of the surface mounter 20, and the like, for example, the management computer 11. And the management computer 11 analyzes the data to investigate the cause of the abnormality. If the cause cannot be determined by analyzing the data, the operator 70 calls the call center 60 of the surface mounter 20 and asks the support person 71 to investigate.

When the support person 71 is requested to investigate, the support person 71 conventionally determines the data considered necessary for the investigation, explains it to the operator 70 by telephone, and requests the extraction and transmission of the necessary data. However, since it is difficult to communicate by telephone, it took time to obtain the necessary data. As a result of analyzing the obtained data, further data may be required. In that case, I had to explain by phone again and get the data again, and one support sometimes took several hours. Therefore, in the present embodiment, the support person 71 remotely controls the operation screen of the surface mounter 20 to perform the operation for transmitting data by himself / herself.

The flow of remote control using the remote control program will be described more specifically. The operator 70 telephones the call center 60 of the surface mounter 20 and explains the situation to the support person 71 by telephone (S101). When the support person 71 determines that log data or the like is necessary for the investigation, the support person 71 starts the terminal side program and requests the operator 70 to permit the remote connection to the surface mounter 20 via the terminal side program. (S102). When accepting the remote connection, the operator 70 operates the operation unit 42 of the surface mounter 20 to accept the communication. This makes remote connection possible.

When the connection is approved, the support person 71 remotely connects to the surface mounter 20 (S103) and remotely performs necessary operations such as extraction and transmission of log data (S104). The support person 71 analyzes the log data transmitted from the surface mounter 20 to investigate the cause of the abnormality, and if necessary, remotely controls the operation screen to change the settings. When the work is completed, the support person 71 notifies the operator 70 of the work completion (S105), operates the terminal device 61, and disconnects the remote connection (S106).

(3-3) Load Monitoring Program The surface mounter 20 may start the mounting work of the component E when the support person 71 remotely controls the surface mounter 20 in S104 described above. The mounting of the component E is performed by the control unit 41 controlling each part of the surface mounter 20 (an example of a control process and a control step). For remote operations, network communication (sending screen data, sending log data, receiving operation information, etc.), reading and writing files (writing extracted log data to files, etc.), GUI (Graphical User Interface) control (received operations, etc.) Since the operation screen is displayed according to the information), the control unit 41 is overloaded. Therefore, if the mounting work is started while the terminal device 61 is remotely connected, the CPU usage rate [%] increases due to the load due to the remote control and the load due to the mounting work, and the operability of the surface mounter 20 becomes high. And work performance (the number of substrates P produced per unit time) may decrease. The CPU usage rate is an example of the processing load of the control unit 41.

The load monitoring program is a program that prohibits remote control from the terminal device 61 in response to an increase in the CPU usage rate of the control unit 41 in order to suppress deterioration in operability and work performance of the surface mounter 20. Is.
Specifically, the load monitoring program acquires the CPU usage rate from the OS at predetermined time intervals, and the state in which the CPU usage rate is equal to or higher than the first threshold value (for example, 70%) continues for a certain period of time (for example, 30 seconds) or longer. Then, a remote disconnection signal is transmitted to the program on the mounting machine side. When the remote disconnection signal is transmitted, the mounting machine side program disconnects the communication with the terminal side program (an example of prohibition processing and prohibition step). As a result, remote control from the terminal device 61 is prohibited. The above-mentioned first threshold value is not limited to 70% and can be appropriately determined. The same applies to a certain period of time.
The load monitoring program may send a remote disconnection signal to the OS instead of the mounting machine side program, and the OS may disconnect the remote connection.

When the remote connection from the terminal device 61 is disconnected, the CPU usage rate decreases, so that the decrease in operability and work performance of the surface mounter 20 can be suppressed. However, since the program on the mounting machine side is still loaded in the RAM as it is, the working performance of the surface mounting machine 20 may be deteriorated due to the high usage rate of the RAM. Therefore, the load monitoring program terminates the mounting machine side program by transmitting a predetermined termination command to the OS after transmitting a remote disconnection signal to the mounting machine side program. Alternatively, the mounting machine side program may be configured to terminate after disconnecting the remote connection from the terminal device 61.

(4) Effect of Embodiment According to the surface mounter 20 according to the first embodiment, when the CPU usage rate of the control unit 41 is low (when it is less than the first threshold value), remote control from the terminal device 61 is not prohibited. Therefore, when the operation unit 42 is operated or when a specific operation is performed on the surface mounter 20, there is a possibility that the remote control can be continued as compared with the case where the remote control is prohibited regardless of the CPU usage rate. It gets higher. Therefore, there is a high possibility that the remote control can be completed at an early stage. Further, according to the surface mounter 20, remote control is prohibited when the CPU usage rate of the control unit 41 is equal to or higher than the first threshold value for a certain period of time or longer. Performance degradation is suppressed. Therefore, according to the surface mounter 20, remote control of the surface mounter 20 can be completed at an early stage while suppressing deterioration of the work performance of the surface mounter 20.

According to the surface mounter 20, remote control from the terminal device 61 can be prohibited by disconnecting the communication with the terminal device 61.

<Embodiment 2>
The second embodiment will be described with reference to FIG. The load monitoring program according to the first embodiment described above is a terminal when the terminal device 61 is remotely connected to the surface mounter 20 and the state in which the CPU usage rate of the control unit 41 is equal to or higher than the first threshold value continues for a certain period of time or longer. Remote control from the device 61 is prohibited. On the other hand, the load monitoring program according to the second embodiment is based on the premise that the CP usage rate of the control unit 41 is equal to or higher than the first threshold value for a certain period of time or longer, and the surface mounter 20 starts the mounting work. When the predetermined precondition is satisfied, remote control from the terminal device 61 is prohibited.

(1) Prerequisites In the case of the surface mounter 20, the preconditions include servo-on, setup change completion, and various preparatory operation completions. Hereinafter, these preconditions will be described.

As described above, servo-on means that the current cutoff device is closed and the servo motor can be energized. Since the surface mounter 20 cannot start the work unless the surface mounter 20 is turned on, it can be said that the surface mounter 20 is a prerequisite for starting the mounting work.

The setup change means that when the model of the board P to be produced is switched, preparations are made according to the model after the switch. In the setup change, the work of changing the arrangement of the backup pin according to the model after switching, the work of replacing with the suction nozzle of the type according to the model after switching, and the parts tape according to the model after switching are tape parts supply device 31. Work such as setting to is performed. Since the surface mounter 20 cannot start the mounting work unless the setup change is completed, it can be said that the completion of the setup change is a prerequisite for the surface mounter 20 to start the mounting work.

When the setup change is completed, the operator operates the operation unit 42 to notify the surface mounter 20 that the setup change is completed. As a result, the control unit 41 can determine whether or not the setup change has been completed. If the control unit 41 can automatically determine whether or not the setup change has been completed, the operator does not need to notify the surface mounter 20 that the setup change has been completed.

The various preparatory operations include an operation of capturing the mounting head 34A from below by the component imaging camera 37 to detect the center position of the mounting head 34A (so-called axis alignment), an operation of automatically cleaning the mounting head 34A, and the like. These are examples of preparatory movements, and the preparatory movements are not limited to these. The preparatory operation is performed under the control of the control unit 41. Since the control unit 41 does not start the mounting work until the various preparatory operations are completed, it can be said that the completion of the various preparatory operations is a precondition for the surface mounter 20 to start the work.
The precondition may be one or two of servo on, setup change completion, and various preparatory operation completions, or may include conditions other than these.

(2) Flow of disconnecting the remote connection The flow of disconnecting the remote connection according to the second embodiment will be described with reference to FIG. As described above, the preconditions (preconditions) for the surface mounter 20 to start work include servo-on, setup change completion, and various preparatory operations, but here, servo-on will be described as an example.

In the example shown in FIG. 6, the state of the surface mounter 20 is servo-off at the time point T1, and the terminal device 61 is remotely connected at the time point T2. In the example shown in FIG. 6, the CPU usage rate rises at the subsequent time point T3, and after the CPU usage rate rises to "high" at the time point T4, the "high" state continues for a certain period of time S or more. Here, "high" means that the CPU usage rate is equal to or higher than the first threshold value (for example, 70%).

In the example shown in FIG. 6, when the “high” state continues for a certain period of time (point T5), the state of the surface mounter 20 is servo-off. That is, at the time point T5, the state in which the CPU usage rate is equal to or higher than the first threshold value continues for a certain period of time S or longer, but the precondition for the surface mounter 20 to start the mounting work is not satisfied. Therefore, the remote connection is not disconnected.

In the example shown in FIG. 6, the remote connection is disconnected at the time point T6. This is the one in which the remote operation is completed and the support person 71 performs the disconnection operation, and is not the one forcibly disconnected. Then, in the example shown in FIG. 6, the state of the surface mounter 20 is servo-on at the time point T7, and the servo is off at the time point T8. Then, at the subsequent time point T9, the terminal device 61 is remotely connected again.

In the example shown in FIG. 6, the state of the surface mounter 20 is servo-on at the subsequent time point T10. Then, after the CPU usage rate rises to "high" at the subsequent time point T11, the "high" state continues for a certain period of time. In the example shown in FIG. 6, when the “high” state continues for a certain period of time (point T12), the state of the surface mounter 20 is servo-on. That is, at the time point T12, the state in which the CPU usage rate is equal to or higher than the first threshold value continues for a certain period of time S or more, and the precondition that the surface mounter 20 starts the work is satisfied. Therefore, at the time point T12, the remote disconnection signal is transmitted from the load monitoring program to the program on the mounting machine side, and the remote connection from the terminal device 61 is forcibly disconnected.

(3) Effect of Embodiment According to the surface mounter 20 according to the second embodiment, when the terminal device 61 is remotely connected, the state in which the CPU usage rate is equal to or higher than the first threshold value continues for a certain period of time S or longer. However, if the predetermined precondition that is the premise that the surface mounter 20 starts the mounting work is not satisfied, the remote control from the terminal device 61 is not prohibited, so that the support person 71 can continue the remote control. Therefore, when the state in which the CPU usage rate is equal to or higher than the first threshold value continues for a certain period of time S or longer, the remote control can be completed earlier than the case where the remote control is prohibited even if the precondition is not satisfied. The sex becomes higher.
Then, according to the surface mounter 20, when the condition that "the state in which the CPU usage rate of the control unit 41 is equal to or higher than the first threshold value continues for a certain period of time S or more and the precondition is satisfied" is satisfied. Since remote control is prohibited, deterioration of the work performance of the surface mounter 20 due to remote control can be suppressed.

According to the surface mounter 20, the prerequisite is that the surface mounter 20 is in the servo-on state. According to the surface mounter 20, when the state of the surface mounter 20 is not servo-on even if the state in which the CPU usage rate is equal to or higher than the first threshold value continues for S or more for a certain period of time when the terminal device 61 is remotely connected. Does not prohibit remote control, so there is a high possibility that the support person 71 can continue remote control. Therefore, it is more likely that the remote control can be completed at an early stage.
<Other Embodiments>
The techniques disclosed herein are not limited to the embodiments described above and in the drawings, and for example, the following embodiments are also included in the technical scope disclosed herein.

(1) In the first embodiment, a case where remote control is prohibited when the state in which the CPU usage rate of the control unit 41 is equal to or higher than the first threshold value continues for a certain period of time S or longer has been described. On the other hand, remote control may be prohibited immediately when the CPU usage rate becomes equal to or higher than the first threshold value.

(2) In the second embodiment, the case where the CPU usage rate of the control unit 41 is equal to or higher than the first threshold value continues for a certain period of time S or more, and remote control is prohibited when a predetermined precondition is satisfied. Explained in the example. On the other hand, remote control may be prohibited when the CPU usage rate is equal to or higher than the first threshold value and a predetermined precondition is satisfied.

(3) In the above embodiment, the case where the terminal device 61 can be remotely connected to the surface mounter 20 regardless of the CPU usage rate of the surface mounter 20 has been described as an example. On the other hand, when the CPU usage rate when the connection request from the terminal device 61 is received is equal to or higher than the second threshold value which is equal to or lower than the first threshold value, or when the connection request is received, the CPU usage rate is the second. When the state of the threshold value or more of is continued for a certain period of time S or more, the control unit 41 of the surface mounter 20 may not establish communication (remote connection) with the terminal device 61. In this way, it is possible to prevent the work performance of the surface mounting machine 20 from being deteriorated by remote control.

However, when the CPU usage rate of the control unit 41 when the connection request from the terminal device 61 is received is equal to or higher than the second threshold value equal to or lower than the first threshold value, or when the connection request is received, the control unit 41 of the control unit 41 Even if the CPU usage rate is equal to or higher than the second threshold value for a certain period of time or longer, if the predetermined precondition that is the premise for the surface mounter 20 to start the mounting work is not satisfied. Since no work has been performed on the substrate P, establishing communication with the terminal device 61 does not affect the work performance of the work on the substrate P.
Therefore, if the predetermined preconditions are not satisfied, communication with the terminal device 61 may be established. In this way, the possibility that the remote control can be started early increases, and as a result, the possibility that the remote control can be completed early increases.

(4) In the above embodiment, the CPU usage rate has been described as an example of the processing load of the control unit 41, but the processing load of the control unit 41 is not limited to the CPU usage rate. For example, the processing load may be the RAM usage rate or the communication load of the communication unit 49 (the amount of data transmitted / received per unit time). Further, the processing load may be any two or more of the CPU usage rate, the RAM usage rate, and the communication load. For example, remote control may be prohibited when the CPU usage rate is equal to or higher than the first threshold value and the RAM usage rate is equal to or higher than a predetermined threshold value.

In remote control, communication-related processes are executed to send screen data and log data. Therefore, the CPU usage rate of the communication-related process becomes high. Since the CPU usage rate can be grasped for each process, remote control from the terminal device 61 may be prohibited when the CPU usage rate of the communication-related process becomes equal to or higher than the first threshold value.

(5) In the above embodiment, transmission of log data or the like has been described as an example of remote control, but remote control is not limited to this, and any operation can be performed as long as it can be performed on the operation screen. It may be there.

(6) In the above embodiment, the case where the board working device 15 such as the surface mounter 20 disconnects the remote connection from the terminal device 61 has been described as an example, but the management computer 11 that relays the communication is connected to the terminal device 61. You may disconnect the remote connection by disconnecting.

(7) In the above embodiment, the case where the remote control is prohibited by disconnecting the communication with the terminal device 61 has been described as an example, but the remote control may be prohibited while maintaining the communication with the terminal device 61. .. When remote control is prohibited, screen data, log data, and the like are not transmitted, so that deterioration of the work performance of the surface mounter 20 can be suppressed even while maintaining communication with the terminal device 61.

15 ... Substrate work equipment, 17 ... Screen printing machine (an example of a substrate work equipment), 18 ... Printing inspection machine (an example of a substrate work equipment), 19 ... Dispenser (an example of a substrate work equipment), 20 ... Surface mounter (an example of a substrate work equipment) Work device example), 21 ... Post-mounting visual inspection machine (example of board work device), 23 ... Post-curing visual inspection device (example of board work device), 41 ... Control unit, 49 ... Communication unit, 61 ... Terminal device , P ... Substrate

Claims (8)

A board work device that performs predetermined work on a board.
A communication unit for communicating with the terminal device,
Control unit and
With
The control unit
A control process that controls each part of the board work apparatus to perform the predetermined work, and
A reception process that establishes communication with the terminal device via the communication unit and accepts remote control of the board work device from the terminal device.
When the processing load of the control unit becomes equal to or higher than the first threshold value when the communication with the terminal device is established, the prohibition process for prohibiting the remote control from the terminal device and the prohibition process.
To perform, board working equipment. The substrate working apparatus according to claim 1.
The control unit is a board work device that prohibits remote control from the terminal device by disconnecting communication with the terminal device in the prohibition process. The substrate working apparatus according to claim 1 or 2.
When the processing load of the control unit is equal to or greater than the first threshold value and a predetermined precondition that is a prerequisite for the substrate work apparatus to start the work is satisfied in the prohibition process. Alternatively, when the processing load of the control unit is equal to or higher than the first threshold value for a certain period of time or longer and the predetermined preconditions are satisfied, remote control from the terminal device is prohibited. apparatus. The substrate working apparatus according to claim 3.
The precondition is that the state of the board work device is an operation ready state. The substrate working apparatus according to any one of claims 1 to 4.
In the reception process, the control unit receives a connection request from the terminal device when the processing load of the control unit is equal to or greater than a second threshold value equal to or less than the first threshold value, or the connection request. A board work device that does not establish communication with the terminal device if the processing load of the control unit is equal to or higher than the second threshold value for a certain period of time or longer at the time of receiving. The substrate working apparatus according to claim 5.
In the reception process, the control unit receives a connection request from the terminal device when the processing load of the control unit is equal to or greater than a second threshold value equal to or lower than the first threshold value, or the connection request. Even if the processing load of the control unit is equal to or higher than the second threshold value for a certain period of time or longer at the time of receiving the above, the substrate work apparatus is premised on starting the work. A board work device that establishes communication with the terminal device when the preconditions are not satisfied. The substrate working apparatus according to any one of claims 1 to 6.
The processing load is a processing load due to a communication-related process, which is a substrate working apparatus. It is a remote control method of a board work device that performs a predetermined work on a board.
A control step in which the control unit of the board work device controls each part of the board work device to perform the predetermined work, and
A reception step in which the control unit establishes communication with the terminal device via the communication unit and receives remote control of the board work device from the terminal device.
A prohibition step in which the control unit prohibits remote control from the terminal device in response to the processing load of the control unit becoming equal to or higher than the first threshold value when communication with the terminal device is established. ,
Remote control methods, including.

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