JP6043797B2 - COMMUNICATION SYSTEM, ELECTRONIC COMPONENT MOUNTING DEVICE, AND STARTING METHOD FOR ELECTRONIC COMPONENT MOUNTING DEVICE - Google Patents

Description

  The present invention relates to data communication in various devices including an electronic component mounting device, and in particular, a communication system that performs communication using a programmable logic device, an electronic component mounting device that uses the communication system, and activation of an electronic component mounting device It is about the method.

  2. Description of the Related Art Conventionally, a technique related to an activation operation of an FPGA (Field Programmable Gate Array) which is one of programmable logic devices capable of arbitrarily programming hardware functions has been disclosed. For example, the control device disclosed in Patent Document 1 is a control device that controls a vehicle engine or the like, and includes an FPGA and a dedicated processing circuit that can execute part of the functions of the FPGA. The control device processes output signals from various sensors (crank angle sensors) and the like by an FPGA and a dedicated processing circuit, and outputs a control signal for operating a drive device such as an injector. In this control device, while the circuit construction (configuration) of the FPGA is executed at the time of startup, the dedicated processing circuit processes the control signal for the drive device, thereby controlling the vehicle system including the engine and the like. It is possible to start early.

Japanese Patent No. 4321472

  By the way, since the programmable logic device can arbitrarily change the function of hardware on the user side (field), application to various devices other than the control device as described above has been studied and developed. For example, the programmable logic device can be applied to a data processing circuit of a communication system. As such a communication system, for example, a configuration in which an FPGA is provided as a circuit that executes predetermined processing (for example, error correction) on data transmitted to each of a plurality of control devices that perform transmission and reception is conceivable. By adopting such a configuration, the processing content of the FPGA can be updated on the user side when the type of data to be transmitted is changed. And also in such a communication system, there exists a request of starting control of a system at an early stage.

  On the other hand, in the control device as described above, there is a case where control signals are communicated between a device to which the drive device is connected and a device that controls the operation of the drive device. In this case, a control signal is communicated from one control device, and the drive device is operated in accordance with the control signal input in the other control device. In such a control apparatus, the processing content executed by the FPGA and the dedicated processing circuit is changed according to the configuration state of the FPGA in the apparatus. However, in a communication system, it is necessary for the transmitting side and the receiving side to execute processing in cooperation. For this reason, when it is desired to start system control of such a communication system earlier, the control devices on the transmission side and the reception side change the processing circuit according to the configuration state of the FPGA, and control each other. It is necessary for the device to perform this processing circuit change in synchronization.

  The present invention has been made in view of the above-described problems, and for a communication system that performs communication using a programmable logic device, it is possible to smoothly start up a steady state while starting system control early. An object of the present invention is to provide a simple communication system, an electronic component mounting apparatus using the communication system, and a starting method of the electronic component mounting apparatus.

  The communication system according to claim 1 of the present application, which has been made in view of the above problems, transmits data between electrical units provided in an electronic component mounting apparatus that performs mounting work of electronic components on a substrate. The electrical unit includes a programmable logic device that is configured based on configuration information, a dedicated processing unit that executes predetermined signal processing on data during the circuit configuration of the programmable logic device based on configuration information, and programmable logic Based on the completion of the circuit construction in the device, an activation means for causing the programmable logic device to perform signal processing on data, and an operation by the activation means, the circuit construction in the programmable logic device and the circuit in the programmable logic device of the communication destination And synchronization means for starting in response to completion of construction.

  A communication system according to claim 2 is provided with a notification unit for notifying completion of circuit construction of the programmable logic device in the communication system according to claim 1, and the notification unit sends completion information of circuit construction to a communication destination. The synchronization unit controls the activation unit based on the completion information from the notification unit and the completion information from the communication destination.

  The communication system according to claim 3 is the communication system according to claim 1 or 2, wherein the predetermined signal processing executed by the dedicated processing unit is different from the signal processing executed by the programmable logic device. The programmable logic device that starts its operation and the dedicated processing unit execute processing on the data in parallel according to the activation means.

  The communication system according to claim 4 is the communication system according to claim 1 or 2, wherein the predetermined signal processing executed by the dedicated processing unit is included in the signal processing executed by the programmable logic device. Of the output from the programmable logic device that starts the operation according to the activation means, when the portion related to the predetermined signal processing matches the output result from the dedicated processing unit. Stop operation.

  Further, an electronic component mounting apparatus according to claim 5 of the present application is an electronic component mounting apparatus that transmits data related to mounting work of electronic components to a board by communication between the electrical units. During the construction of programmable logic devices based on information and the construction of programmable logic devices based on configuration information, a dedicated processing unit that performs predetermined signal processing on data and the construction of circuits in programmable logic devices are complete Based on the above, the start-up means for causing the programmable logic device to execute signal processing on data and the operation by the start-up means have been completed for both the circuit construction in the programmable logic device and the circuit construction in the programmable logic device of the communication destination Let it start accordingly And a synchronization means.

  The starting method of the electronic component mounting apparatus according to claim 6 of the present application is a starting method of the electronic component mounting apparatus that transmits data related to the mounting operation of the electronic component to the board by communication between the electrical units, The electrical unit is programmable based on the programmable logic device whose circuit is constructed based on the configuration information, the dedicated processing unit that executes predetermined signal processing on the data, and the completion of the circuit construction in the programmable logic device. And a starting means for causing the logic device to perform signal processing on the data. The circuit construction of the programmable logic device is performed by the step of starting the circuit construction of the programmable logic device and the step of starting the circuit construction. During this time, a signal processing unit that performs predetermined signal processing by the dedicated processing unit A step of notifying completion of circuit construction in the programmable logic device, a step of receiving notification of completion of circuit construction in the programmable logic device at the communication destination, a step of notifying from the communication step And a step of notifying the programmable logic device to start signal processing on data by the step of notifying.

  In the communication system according to the first aspect, data transmitted between the electrical units is subjected to signal processing in the programmable logic device and the dedicated processing unit. The programmable logic device is configured (configured) based on configuration information when the communication system is powered on or restarted. While this circuit construction is executed, the dedicated processing unit executes signal processing on the transmitted data. The activation means causes the programmable logic device to execute signal processing based on the completion of circuit construction. Then, the synchronization means starts the operation by the activation means in response to the completion of the circuit construction in the programmable logic device provided in its own electrical unit and the programmable logic device of the communication destination. Thereby, the electrical unit that performs transmission / reception performs signal processing in the programmable logic device after completion of circuit construction in synchronization with each other. As a result, the processing circuit that performs the signal processing according to the completion of the circuit construction is appropriately changed, and the control of the communication system can be started at an early stage and can be smoothly started up in a steady state.

  According to a second aspect of the present invention, the communication system includes a notification unit that notifies completion of circuit construction of the programmable logic device. The notification unit outputs the circuit construction completion information to the communication destination, and the synchronization unit controls the activation unit based on the completion information of the notification unit included in its own electrical unit and the completion information from the communication destination. As a result, it is possible to appropriately detect and synchronize the completion of circuit construction between the electrical units.

  In the communication system according to the third aspect, when the circuit construction is completed, the dedicated processing unit and the programmable logic device execute signal processing of different processing contents on the data in parallel. In such a configuration, a part of signal processing that can be executed in the programmable logic device can be executed by the dedicated processing unit, and the circuit scale of the programmable logic device can be reduced. Accordingly, the time required for circuit construction of the programmable logic device can be shortened, and the control of the communication system can be started more quickly.

  In the communication system according to the fourth aspect, the dedicated processing unit executes part of the signal processing executed by the programmable logic device. The operation of the dedicated processing unit is stopped when the output results of the programmable logic device and the dedicated processing unit match. This makes it possible to change the processing circuit that performs signal processing in accordance with the completion of circuit construction by checking whether the circuit construction has been normally completed according to the comparison result of the output between the dedicated processing unit and the programmable logic device. It is possible to perform reliably.

  In the electronic component mounting apparatus according to claim 5, the dedicated processing unit transmits the electrical unit that transmits data related to the mounting operation of the electronic component to the board while the circuit construction of the programmable logic device is executed. Signal processing is performed on the data to be processed. The activation means causes the programmable logic device to execute signal processing based on the completion of circuit construction. Then, the synchronization means starts the operation by the activation means in response to the completion of the circuit construction in the programmable logic device provided in its own electrical unit and the programmable logic device of the communication destination. As a result, an electronic component mounting apparatus that improves the startup time of the system can be configured by smoothly starting the data transmission between the electrical units to a steady state while being started early.

  In the electronic component mounting apparatus activation method according to the sixth aspect, when the circuit construction of the programmable logic device is started, the signal processing by the dedicated processing unit is executed while the circuit construction is being performed. When the circuit construction is completed, this is notified between the electrical units. When a notification of completion is received from the communication destination, the programmable logic device is caused to execute signal processing. Thus, while the circuit construction is being performed, the signal processing by the dedicated processing unit is executed, and the signal processing in the programmable logic device after the completion of the circuit construction is executed in synchronization with each other. As a result, the start-up time of the electronic component mounting apparatus can be improved by smoothly starting the data transmission between the electrical units in a steady state while being started early.

It is a perspective view of the electronic component mounting apparatus with which the communication system of this embodiment is applied. It is a schematic plan view of the state which removed the upper cover of the electronic component mounting apparatus shown in FIG. It is a block diagram of an electronic component mounting apparatus. It is a schematic block diagram of a multiplexing communication system. It is a schematic block diagram of an optical wireless apparatus. It is a conceptual diagram which shows the starting operation | movement of a multiplexing communication system. It is a flowchart which shows the flow of operation | movement at the time of starting of a multiplexing communication system.

  Embodiments of the present invention will be described below with reference to the drawings. First, an electronic component mounting apparatus (hereinafter sometimes abbreviated as “mounting apparatus”) will be described as an example of an apparatus to which the communication system of the present application is applied.

(Configuration of mounting device 10)
As shown in FIG. 1, the mounting device 10 includes a device main body 11, a pair of display devices 13 provided integrally with the device main body 11, and supply devices 15 and 16 provided detachably with respect to the device main body 11. Is provided. The mounting device 10 according to the present embodiment is an electronic component (not shown) with respect to the circuit board 100 transported by the transport device 21 housed in the device body 11 based on the control of the control device 80 shown in FIG. It is an apparatus which implements mounting work. In the present embodiment, as shown in FIG. 1, the direction in which the circuit board 100 is transported by the transport device 21 (the left-right direction in FIG. 2) is the X-axis direction, and the horizontal direction in the transport direction of the circuit board 100 is the X-axis direction. A direction perpendicular to the direction is referred to as a Y-axis direction and will be described.

  The apparatus body 11 includes display devices 13 at both ends in the Y-axis direction on one end side in the X-axis direction. Each display device 13 is a touch panel display device, and displays information related to the mounting operation of the electronic component. Further, the apparatus main body 11 includes supply devices 15 and 16 that are mounted so as to be sandwiched from both sides in the Y-axis direction. The supply device 15 is a feeder-type supply device, and includes a plurality of tape feeders 15A that are housed in a state where various electronic components are taped and wound on a reel. The supply device 16 is a tray-type supply device, and has a plurality of component trays 16A (see FIG. 2) on which a plurality of electronic components are placed.

  FIG. 2 is a schematic plan view showing the mounting device 10 from a viewpoint from above (upper side in FIG. 1) with the upper cover 11A (see FIG. 1) of the device body 11 removed. As shown in FIG. 2, the apparatus main body 11 includes the transport device 21, a mounting head 22 for mounting electronic components on the circuit board 100, and a moving device 23 for moving the mounting head 22. Prepare for the top.

  The transfer device 21 is provided in a substantially central portion of the base 20 in the Y-axis direction, and moves the pair of conveyor belts 31, the substrate holding device 32 held on the conveyor belt 31, and the substrate holding device 32. And an electromagnetic motor 33. The substrate holding device 32 holds the circuit board 100. The output shaft of the electromagnetic motor 33 is drivingly connected to the conveyor belt 31. The electromagnetic motor 33 is, for example, a servo motor that can accurately control the rotation angle. In the transport device 21, the circuit board 100 moves in the X-axis direction together with the substrate holding device 32 when the conveyor belt 31 rotates around based on the driving of the electromagnetic motor 33.

  The mounting head 22 has a suction nozzle 41 that sucks electronic components on the lower surface facing the circuit board 100. The suction nozzle 41 communicates with the negative pressure air and the positive pressure air passage via a positive / negative pressure supply device 42 (see FIG. 3), sucks and holds the electronic component with the negative pressure, and supplies a slight positive pressure. The held electronic component is removed. Moreover, the mounting head 22 has a nozzle lifting device 43 (see FIG. 3) that lifts and lowers the suction nozzle 41 and a nozzle rotation device 44 (see FIG. 3) that rotates the suction nozzle 41 about its axis. The vertical position of the electronic component to be held and the holding posture of the electronic component are changed. The nozzle lifting / lowering device 43 includes, for example, an electromagnetic motor 43A (see FIG. 3) as a drive source. The mounting head 22 has a position detection sensor 45 (see FIG. 3) for detecting the position of the electronic component to be held in the vertical direction. Further, a mark camera 47 for photographing the circuit board 100 is fixed to the mounting head 22 in a state of facing downward. The suction nozzle 41 is detachable from the mounting head 22 and can be changed according to the size and shape of the electronic component.

  The mounting head 22 is moved to an arbitrary position on the base 20 by the moving device 23. More specifically, the moving device 23 includes an X-axis direction slide mechanism 50 for moving the mounting head 22 in the X-axis direction, and a Y-axis direction slide mechanism 52 for moving the mounting head 22 in the Y-axis direction. . The X-axis direction slide mechanism 50 has an X-axis slider 54 provided on the base 20 so as to be movable in the X-axis direction, and an electromagnetic motor 56 as a drive source. The X-axis slider 54 moves to an arbitrary position in the X-axis direction based on driving of the electromagnetic motor 56.

  The Y-axis direction slide mechanism 52 has a Y-axis slider 58 provided on the side surface of the X-axis slider 54 so as to be movable in the Y-axis direction, and an electromagnetic motor 60 as a drive source. The Y-axis slider 58 moves to an arbitrary position in the Y-axis direction based on driving of the electromagnetic motor 60. The mounting head 22 is attached to the Y-axis slider 58 and moves to an arbitrary position on the base 20 as the moving device 23 is driven. Thereby, the mark camera 47 can image the surface of an arbitrary position of the circuit board 100 by moving the mounting head 22. Image data photographed by the mark camera 47 is processed by the image processing device 71 (see FIG. 3) and output to the control device 80. The mounting head 22 is attached to the Y-axis slider 58 via the connector 48 and can be attached and detached with a single touch, and can be changed to a different type of work head, for example, a dispenser head.

  In addition, the base 20 has supply devices 15 and 16 connected to side portions provided on both sides in the Y-axis direction. Each of the supply devices 15 and 16 can be attached to and detached from the base 20 in order to cope with a shortage of electronic components to be supplied, changes in the types of electronic components, and the like. Further, the base 20 is provided with a parts camera 73 at a substantially central portion in the X-axis direction at a portion to which the supply devices 15 and 16 are connected. Each part camera 73 is provided in a state of facing upward, and images the electronic components sucked and held by the suction nozzle 41 of the mounting head 22 from each of the supply devices 15 and 16. The parts camera 73 outputs the captured image data to the image processing device 71 (see FIG. 3). The image processing device 71 outputs the processed data to the control device 80.

(Communication system applied to mounting device 10)
Here, as shown in FIG. 3, the mounting apparatus 10 according to the present embodiment uses optical wireless multiplexed communication for data communication between the control apparatus 80 of the mounting apparatus 10 and parts (various apparatuses) other than the control apparatus 80. Is used. Note that the configuration of the mounting apparatus 10 illustrated in FIG. 3 is an example in the case of applying a communication system, and is appropriately changed according to the type and number of apparatuses provided in the mounting apparatus 10. The communication system of the present application is a system that can be applied to an automatic machine operating in various production lines in addition to the electronic component mounting apparatus exemplified by the mounting apparatus 10.

  As shown in FIG. 3, the control device 80 includes a controller 82 mainly composed of a computer having a CPU, ROM, RAM, and the like, an image board 84, a drive control board 85, and an I / O board 86. The controller 82 communicates with various devices via the boards 84, 85, 86. Each board 84, 85, 86 is connected to one end of a transmission path 95 via an optical wireless device 91, and the other end of the transmission path 95 is connected to various devices (camera, motor, sensor, etc.) via an optical wireless device 93. ) Is connected. Data input / output between the boards 84, 85, 86 and various devices is transmitted via optical wireless devices 91, 93 by optical wireless communication in the transmission path 95. For example, as shown in FIG. 2, the moving device 23 is provided with a light emitting / receiving unit 92 </ b> B of the optical wireless device 93 facing the light emitting / receiving unit 92 </ b> A of the optical wireless device 91 connected to the control device 80. . The light emitting / receiving unit 92B is fixed to the X-axis slider 54 of the moving device 23 so that the optical axis coincides with the light emitting / receiving unit 92A on the optical wireless device 91 side. As a result, various types of communication can be performed between the light emitting / receiving units 92A and 92B (optical wireless devices 91 and 93).

  An image board 84 shown in FIG. 3 is a board that controls input / output of image data. For example, the controller 82 uses the image board 84 to hold information (type, shape, etc.) on the circuit board 100 detected by the image processing apparatus 71 from processing of the image data of the mark camera 47 and hold the circuit board 100 by the board holding device 32. Receive information such as position error. The drive control board 85 is a board that controls input / output of operation commands for the electromagnetic motor and information fed back from the electromagnetic motor in real time. For example, the controller 82 receives servo control information such as torque information and position information (vertical position of the electronic component held by the suction nozzle 41) acquired by the electromagnetic motor 43A via the drive control board 85. The I / O board 86 is a board that controls input / output of an output signal of the position detection sensor 45, for example. Data input from these devices to the control device 80 is multiplexed by the optical wireless device 93 and then transmitted through the transmission path 95 as an optical wireless signal. The optical wireless device 91 performs a process of demultiplexing the transmitted multiplexed signal and separating it into individual data. Of the separated data, the optical wireless device 91 transfers image data to the image board 84, servo control information to the drive control board 85, and I / O signals to the I / O board 86.

  On the other hand, the controller 82 processes each data received by the optical wireless device 91. For example, the controller 82 outputs a control signal for the electromagnetic motor 43 </ b> A based on the processing result to the optical wireless device 91 via the drive control board 85. The optical wireless device 93 transfers the control signal transmitted from the optical wireless device 91 to the nozzle lifting / lowering device 43. Thus, the electromagnetic motor 43A operates based on the control signal. For example, the controller 82 outputs a control signal for changing the display of the display device 13 to the display device 13 via the I / O board 86 and the optical wireless devices 91 and 93. As described above, various types of information transmitted and received between the control device 80 and each device other than the control device 80 are transmitted and received as data multiplexed on the transmission path 95, for example, time division multiplexing (TDM) frame data. . Note that only part of the communication between the control device 80 and another device may be performed by optical wireless communication.

  In the mounting device 10 described above, an electronic component is mounted on the circuit board 100 held by the substrate holding device 32 by the mounting head 22. Specifically, the controller 82 drives the transport device 21 to transport the circuit board 100 to the working position, stops the electromagnetic motor 33, and holds the circuit board 100 in a fixed manner. Next, the controller 82 drives the moving device 23 to move the mounting head 22 onto the circuit board 100 and images the circuit board 100 with the mark camera 47. At this time, the controller 82 determines the type of the circuit board received from the image processing apparatus 71 and the error in the holding position of the circuit board 100. Next, the controller 82 drives the supply devices 15 and 16 having electronic components according to the determination result for the type of board, and performs control to send the corresponding electronic components to the supply position to the mounting head 22. Next, the controller 82 drives the moving device 23 to suck and hold the electronic component conveyed at the supply position by the suction nozzle 41 of the mounting head 22.

  Next, the controller 82 moves the mounting head 22 holding the electronic component onto the parts camera 73 to image the state of the electronic component. At this time, the controller 82 acquires an error in the holding position of the electronic component based on the imaging result. Next, the controller 82 moves the mounting head 22 to the mounting position on the circuit board 100, rotates the suction nozzle 41 based on the holding position error of the circuit board and the electronic component, and then mounts the electronic component on the circuit board 100. .

  Next, a communication system (multiplexed communication system) suitable for application to the mounting apparatus 10 for mounting electronic components using the above-described multiplexed communication will be described with reference to FIG. A multiplexing communication system 110 illustrated in FIG. 4 is an example of a communication system that connects the mounting head 22 and the control device 80. In the following description, data transmission from the control device 80 to the mounting head 22 will be described first.

  In the control device 80, an image board 84, a drive control board 85, and an I / O board 86 are electrically connected to the optical wireless device 91. In the mounting head 22, the electromagnetic motor 43 </ b> A, the position detection sensor 45, and the mark camera 47 of the nozzle lifting / lowering device 43 are electrically connected to the optical wireless device 93.

  The optical wireless device 91 includes an input / output circuit 120, an FPGA (Field Programmable Gate Array) 122, a CPLD (Complex Programmable Logic Device) 123, a selector 124, a ROM 126, a CPU 127, and a multiplexing device 129. Various circuits are connected to each other by a communication bus (not shown). The control device 80 outputs the output signals of the boards 84, 85, 86 to the input / output circuit 120 of the optical wireless device 91. The input / output circuit 120 outputs the input signal to the FPGA 122 and the CPLD 123.

  The FPGA 122 and the CPLD 123 perform predetermined signal processing on the data input from the input / output circuit 120 and output the processed data to the selector 124. This predetermined signal processing is, for example, processing for performing error detection / correction on transmitted data. The ROM 126 is a rewritable nonvolatile memory such as a flash memory, for example, and stores configuration information including circuit data of each processing circuit described later included in the FPGA 122.

  The selector 124 switches signals output from the FPGA 122 and the CPLD 123 to the multiplexing device 129. The CPU 127 is a circuit that performs overall control of the optical wireless device 91, and controls the input / output destinations of the input / output circuit 120 and the selector 124 according to the configuration when the FPGA 122 is activated. The multiplexing device 129 multiplexes the output signal of the selector 124 and transmits it to the multiplexing device 139 of the optical wireless device 93 via the transmission path 95. The CPU 127 controls the presence / absence of multiplexing processing in the multiplexing device 129 according to the configuration of the FPGA 122.

  The optical wireless device 93 has the same configuration as the optical wireless device 91, and includes an input / output circuit 130, an FPGA 132, a CPLD 133, a selector 134, a ROM 136, a CPU 137, and the multiplexing device 139 described above. . Multiplexer 139 demultiplexes the signal transmitted from multiplexer 129, separates it into individual data, and outputs the data to selector 134. The CPU 137 controls the presence / absence of multiplexing processing in the multiplexing device 139 according to the configuration of the FPGA 132. The selector 134 outputs the output signal of the multiplexing device 139 to the FPGA 132 and the CPLD 133. The FPGA 132 and the CPLD 133 perform predetermined signal processing on the input data and output signals to each device (such as the electromagnetic motor 43A) via the input / output circuit 130. The CPU 137 changes the input / output destinations of the input / output circuit 130 and the selector 134 according to the configuration of the FPGA 132.

  For example, the controller 82 outputs a servo control signal for the electromagnetic motor 43A from the drive control board 85 to the mounting head 22 via the optical wireless devices 91 and 93 to control the electromagnetic motor 43A. When data is transmitted from the mounting head 22 to the control device 80, the data is transferred in the opposite direction to that described above, and the same processing is performed in each circuit. To do.

  Here, in the communication between the control device 80 and each device other than the control device 80 including the mounting head 22, different types of data are transmitted. For example, image data transmitted and received by the image board 84 has a relatively large amount of data constituting one frame, and is data that requires a data transfer rate of, for example, 1 Gbps or more. Further, for example, the operation command and servo control information transmitted / received by the drive control board 85 have a smaller required data amount than the above-described image data, and a data transfer rate of, for example, 125 Mbps is required.

  In the optical wireless devices 91 and 93, error correction code assignment and detection / correction circuits corresponding to the respective data types are configured in the FPGAs 122 and 132. For this reason, the FPGAs 122 and 132 tend to increase in circuit scale due to an increase in the number of necessary circuits with an increase in data types. That is, the circuit scale increases as various functions are added to the FPGAs 122 and 132 in order to improve the reliability of the multiplexed communication system 110, and the configuration time at startup, that is, the system startup time becomes longer. Is concerned.

  Therefore, in the multiplexed communication system 110 according to the present embodiment, the priority of processing contents required at the time of activation is determined based on the type of data to be transmitted, and the processing is performed while the FPGAs 122 and 132 are performing configuration. Are executed by the CPLDs 123 and 133. For example, servo control information transmitted between the drive control board 85 and the electromagnetic motor 43A has a relatively small amount of data to be transmitted and a small load related to data processing per command. For this reason, the optical wireless devices 91 and 93 are provided with circuits for processing servo control information in the CPLDs 122 and 123, and the CPLDs 123 and 133 perform data processing on the servo control information while the FPGAs 122 and 132 are performing configuration. It has become.

  The CPLDs 123 and 133 are configured as dedicated LSIs that include a nonvolatile memory such as an EEPROM that can rewrite circuit data, and that function as the mounting apparatus 10 is powered on. For this reason, the CPLDs 123 and 133 require a shorter time to function than the FPGAs 122 and 132 that require configuration after startup. Therefore, by executing part of the functions of the FPGAs 122 and 132 by the CPLDs 123 and 133 during the configuration of the FPGAs 122 and 132, it is possible to start control of the communication system at an early stage.

  Further, when the configuration of the FPGAs 122 and 132 is completed, the CPUs 127 and 137 control the input / output circuits 120 and 130, the selectors 124 and 134, and the multiplexers 129 and 139 from CPLDs 123 and 133. Control to switch to the FPGAs 122 and 132 is performed. As a result, the optical wireless devices 91 and 93 are switched to a circuit for processing servo control information while synchronizing with each other, and can be smoothly started up in a steady state while starting control of the multiplexed communication system 110 at an early stage. .

  Next, the configurations of the CPLD 123 and the FPGA 122 of the optical wireless device 91 will be described. The optical wireless device 93 has the same configuration as that of the optical wireless device 91, and thus the description thereof is omitted. As illustrated in FIG. 5, the FPGA 122 of the optical wireless device 91 includes a processing unit 122A and a notification unit 122B. The processing unit 122A performs processing such as error correction on the data 215 including the servo control information (see FIG. 6) after the configuration of the FPGA 122 is completed. The notification unit 122B executes processing for notifying the CPLD 123 of completion of configuration of the FPGA 122.

  The CPLD 123 includes an activation unit 123A, a detection unit 123B, and an initial processing unit 123C. The activation unit 123 </ b> A performs processing for causing the FPGA 122 to start configuration when the CPLD 123 is activated. The output signal of the notification unit 122B is input to the detection unit 123B. The detection unit 123B detects that the configuration of the FPGA 122 is completed based on a signal input from the notification unit 122B. In addition, the detection unit 123B holds information that the configuration has been completed, and outputs a signal indicating that it has been detected to the initial processing unit 123C.

  The initial processing unit 123C performs processing such as error correction on the servo control information (servo information 210 shown in FIG. 6) while the FPGA 122 is performing configuration. Further, the initial processing unit 123C sets and outputs information (flag data 212 shown in FIG. 6) indicating that the FPGA 122 has completed the configuration for the servo information 210 based on the output of the detection unit 123B.

(Startup operation of multiplexed communication system 110)
Next, the operation at the time of starting the multiplexed communication system 110 will be described with reference to FIGS. FIG. 6 is a conceptual diagram showing the activation operation of the multiplexed communication system 110. First, in step S <b> 1 shown in FIG. 7, the optical wireless devices 91 and 93 activate the CPLDs 123 and 133, respectively, when the mounting device 10 is powered on. The CPLDs 123 and 133 constitute each processing circuit (such as the activation unit 123A shown in FIG. 5).

  Next, in step S <b> 2 (see FIG. 6), the activation units 123 </ b> A of the CPLDs 123 and 133 perform processing for outputting the configuration information stored in the ROMs 126 and 136 to the FPGAs 122 and 132. The FPGAs 122 and 132 start configuration for configuring each processing circuit (processing unit 122A and the like) based on the input configuration information. On the other hand, each of the initial processing units 123C of the CPLDs 123 and 133 starts signal processing for the servo information 210 (see FIG. 6) that is input or output (step S3). Further, as illustrated in FIG. 6, the initial processing unit 123 </ b> C executes processing for setting flag data 212 for the servo information 210 that has undergone predetermined signal processing. The flag data 212 is, for example, a predetermined number of bit strings, and zero is set as an initial value. Then, the initial processing unit 123C sets a predetermined bit value in the flag data 212 when the FPGAs 122 and 132 complete the configuration based on the output of the detection unit 123B.

  At this time, the CPUs 127 and 137 have the input / output circuits 120 and 130, the selectors 124 and 134, and the multiplexer so that the servo information 210 processed by the initial processing unit 123C is transmitted to the transmission path 95 (see FIG. 4). 129 and 139 are controlled. For example, the CPU 127 controls the input / output circuit 120 to input / output data (including servo control information) of the drive control board 85 (see FIG. 4) to the CPLD 123. Further, the CPU 127 controls the selector 124 to input / output data of the CPLD 123 to / from the multiplexer 129. Further, the CPU 127 controls the multiplexing device 129 so that the servo information 210 and the flag data 212 are transmitted without being multiplexed. The CPU 137 executes the same control as the CPU 127 for the input / output circuit 130, the selector 134, and the multiplexing device 139. The drive control board 85 and the electromagnetic motor 43A execute data transfer of the servo information 210 via the optical wireless devices 91 and 93.

  Next, when the configuration of the FPGA 122 or the FPGA 132 is completed in step S4, each initial processing unit 123C sets a predetermined value in the flag data 212 and outputs it. For example, when the initial processing unit 123C of the CPLD 123 receives data in which the predetermined value is set in the flag data 212 from the initial processing unit 123C of the CPLD 133, the fact that the configuration of the FPGA 132 on the optical wireless device 93 side is completed in the detection unit 123B. To be notified. When the configuration of the FPGA 122 is completed (step S7), the detection unit 123B of the optical wireless device 91 has the configuration of the FPGAs 122 and 132 of both the optical wireless devices 91 and 93 in the initial processing unit 123C and the CPU 127. Notify completion. The initial processing unit 123C of the CPLD 123 sets and outputs data indicating that the configuration of both the FPGAs 122 and 132 is completed in the flag data 212. The initial processing unit 123C of the CPLD 133 of the optical wireless device 93 notifies the CPU 137 that the configuration is complete. As a result, the CPUs 127 and 137 of both the optical wireless devices 91 and 93 detect the completion of the configuration of the FPGAs 122 and 132. In step S7, the data processing by the CPLDs 123 and 133 is continued until both the FPGAs 122 and 132 are configured.

  Next, in step S <b> 8, the CPUs 127 and 137 perform control to switch circuits that process data to be transmitted from the CPLDs 123 and 133 to the FPGAs 122 and 132. For example, the CPUs 127 and 137 perform control to switch at a predetermined operation clock from the time when the completion of the configuration of both the FPGAs 122 and 132 is detected. The CPU 127 controls the input / output circuit 120 to input / output data of the boards 84, 85, 86 to the FPGA 122. Further, the CPU 127 controls the selector 124 to input / output data of the FPGA 122 to / from the multiplexer 129. Further, the CPU 127 controls the multiplexing device 129 to execute the multiplexing process of input / output data. The CPU 137 executes similar control in synchronization with the CPU 127.

  The optical wireless devices 91 and 93 may include circuits that compare the outputs of the FPGAs 122 and 132 and the CPLDs 123 and 133, respectively. For example, the FPGA 122 and the CPLD 123 are configured to reconfigure (reconfigure) the FPGA 122 when the error detection results for the servo information 210 between the FPGA 122 and the CPLD 123 are different and / or when the output data itself contains an error. The initial processing unit 123C may be set not to notify the completion of configuration until the output results match. Further, the CPU 127 controls the input / output circuit 120 and the selector 124 so that the servo information 210 is input / output to both the FPGA 122 and the CPLD 123 until the results match, and does not execute the multiplexing process by the multiplexing device 129. It is good also as a setting controlled to. As a result, it is possible to more reliably perform a synchronized switching operation by confirming whether the configuration has been normally completed.

  In step S9, when the switching from the CPLD 123, 133 to the FPGA 122, 132 is completed, the data processed by the FPGA 122, 132 is transmitted as multiplexed data 215 as shown in FIG. 110 is launched to a steady state.

As mentioned above, according to this embodiment described in detail, there exist the following effects.
Circuit construction (configuration) is performed on the FPGAs 122 and 132 included in the optical wireless devices 91 and 93 when the mounting device 10 is powered on. While this configuration is executed, the CPLDs 123 and 133 execute signal processing on data (servo information 210) transmitted to the transmission path 95 of the multiplexed communication system 110. The input / output circuits 120 and 130 and the selectors 124 and 134 change data input and output to the FPGAs 122 and 132 and the CPLDs 123 and 133 based on the control of the CPUs 127 and 137. The CPUs 127 and 137 execute switching operations by the input / output circuits 120 and 130 and the selectors 124 and 134 in synchronization between the optical wireless devices 91 and 93 based on the completion of the configuration of both the FPGAs 122 and 132. As a result, the optical wireless devices 91 and 93 perform the switching operation of the FPGAs 122 and 132 and the CPLDs 123 and 133 after the configuration is completed in synchronization with each other. Accordingly, the data processing circuit is appropriately changed in accordance with the completion of the configuration, and the control of the multiplexed communication system 110 can be started up at an early stage and can be smoothly started up in a steady state. As a result, the startup time of the system of the mounting apparatus 10 can be improved.

  Incidentally, the multiplexing communication system 110 is an example of a communication system, the optical wireless devices 91 and 93 are examples of electrical units, the FPGAs 122 and 132 are examples of programmable logic devices, and the CPLDs 123 and 133 are dedicated processing units. As an example, the input / output circuits 120 and 130 and the selectors 124 and 134 are examples of activation means, the CPUs 127 and 137 are examples of activation means and synchronization means, and the notification unit 122B is an example of notification unit. Is an example of circuit construction completion information.

Note that the present invention is not limited to the above-described embodiment, and it goes without saying that various improvements and modifications can be made without departing from the spirit of the present invention.
For example, in the above-described embodiment, optical wireless communication has been described as an example, but the present application is not limited to this. The present invention can be similarly applied to wired communication, and can be similarly applied to telecommunication instead of optical communication.

Moreover, although the said embodiment demonstrated the multiplexed communication to the example, this application is not limited to this.
In the above embodiment, communication by a pair of optical wireless devices 91 and 93 has been described as an example. However, the present invention may be applied to communication between a plurality of three or more optical wireless devices.

  In the above embodiment, the multiplexed communication system 110 is used for communication between devices (the control device 80 and other devices) built in the mounting device 10, but other optical wireless devices 91 and 93 (FPGA 122, 132).

  In the above embodiment, the completion of the configuration is detected by the CPLDs 123 and 133 (detection unit 123B). However, only the CPUs 127 and 137 may perform the processing. In this case, the output signal of the notification unit 122B may be output to the CPUs 127 and 137, and the detection unit 123B of the CPLDs 123 and 133 may be omitted.

  In the above embodiment, the notification unit 122B is provided in the FPGAs 122 and 132. However, the notification unit 122B may be provided separately from the FPGAs 122 and 132. For example, a circuit that monitors the outputs of the FPGAs 122 and 132 and notifies the CPUs 127 and 137 of the completion of the configuration may be provided separately from the FPGAs 122 and 132 so as to function as the notification unit 122B.

  In the above-described embodiment, the CPLDs 123 and 133 are configured to execute a part of the functions of the FPGAs 122 and 132, but may be set to execute processing different from the FPGAs 122 and 132. That is, in the above-described embodiment, only the CPLDs 123 and 133 execute the processing for the servo information 210. In other words, the FPGAs 122 and 132 are configured not to include a circuit for processing the servo information 210. For example, the CPLDs 123 and 133 and the FPGAs 122 and 132 execute data processing in parallel after the configuration is completed. With such a configuration, the circuit scale of the FPGAs 122 and 132 can be reduced, and control of the multiplexed communication system 110 can be started more quickly.

  In the above-described embodiment, CPLDs 123 and 133 that can rewrite circuit data are used as processing units (dedicated processing units) that execute processing during configuration. However, a dedicated LSI or the like whose circuit configuration cannot be changed on the user side is used. May be.

  Moreover, the structure of the mounting apparatus 10 of the said embodiment is an example, and changes suitably. For example, it is good also as a structure provided with multiple conveyor belts 31 (plural lanes). Further, for example, a configuration in which a plurality of mounting devices 10 are drivingly connected in the transport direction may be employed.

91,93 Optical wireless device, 110 Multiplexing communication system, 120,130 I / O circuit, 122,132 FPGA, 123,133 CPLD, 124,134 selector, 127,137 CPU, 212 Flag data

Claims (6)

In an electronic component mounting apparatus that performs an operation of mounting an electronic component on a board, a communication system that transmits data between electrical units provided in the electronic component mounting apparatus,
The electrical unit is
A programmable logic device whose circuit is constructed based on configuration information;
A dedicated processing unit that executes predetermined signal processing on the data during the circuit construction of the programmable logic device according to the configuration information;
Starting means for causing the programmable logic device to perform signal processing on the data based on completion of the circuit construction in the programmable logic device;
A communication system comprising: synchronization means for starting the operation by the activation means in response to completion of both the circuit construction in the programmable logic device and the circuit construction in the programmable logic device of the communication destination. A notification unit for notifying completion of the circuit construction of the programmable logic device;
The notification unit outputs the circuit construction completion information to a communication destination,
The communication system according to claim 1, wherein the synchronization unit controls the activation unit based on the completion information from the notification unit and completion information from a communication destination. The predetermined signal processing executed by the dedicated processing unit is different from the signal processing executed by the programmable logic device,
The communication according to claim 1 or 2, wherein the programmable logic device whose operation starts and the dedicated processing unit execute processing on the data in parallel according to the activation unit. system. The predetermined signal processing executed by the dedicated processing unit is a part of processing included in the signal processing executed by the programmable logic device,
The operation of the dedicated processing unit when the portion related to the predetermined signal processing in the output result from the programmable logic device whose operation starts according to the activation means matches the output result from the dedicated processing unit. The communication system according to claim 1, wherein the communication system is stopped. An electronic component mounting apparatus for transmitting data related to mounting work of electronic components on a board by communication between electrical units,
The electrical unit is
A programmable logic device whose circuit is constructed based on configuration information;
A dedicated processing unit that executes predetermined signal processing on the data during the circuit construction of the programmable logic device according to the configuration information;
Starting means for causing the programmable logic device to perform signal processing on the data based on completion of the circuit construction in the programmable logic device;
An electronic component mounting apparatus comprising: synchronization means for starting an operation by the activation means in response to completion of both the circuit construction in the programmable logic device and the circuit construction in a programmable logic device of a communication destination . A method of starting an electronic component mounting apparatus for transmitting data related to mounting work of electronic components on a board by communication between electrical units,
The electrical unit is
A programmable logic device whose circuit is constructed based on configuration information;
A dedicated processing unit that performs predetermined signal processing on the data;
Starting means for causing the programmable logic device to execute signal processing on the data based on the completion of the circuit construction in the programmable logic device, and
Starting circuit construction of the programmable logic device;
Executing the predetermined signal processing by the dedicated processing unit while the circuit construction of the programmable logic device is being performed by the step of starting the circuit construction;
Notifying completion of the circuit construction in the programmable logic device;
Receiving a notification of completion of circuit construction in the programmable logic device at the communication destination from the communication destination;
And a step of causing the programmable logic device to start signal processing on the data by the step of notifying and the step of notifying from the communication destination.

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