JP6700985B2 - Stage equipment - Google Patents

Description

  The present invention relates to a stage apparatus for controlling a winch for feeding and winding a wire for hanging a baton or the like.

  In the conventional stage equipment, in order to operate a plurality of winches for feeding and winding wires for suspending batons, a plurality of control devices provided for each winch and a control command for instructing the operation of the winches are given to the control devices. It was equipped with a console.

  The operation console is composed of an operation panel for the operator to operate the winch and a higher-level control device for controlling the control device, and the operation console integrally controls all the control devices.

  Some control all winches with a single control panel, but if this is done, the devices for controlling all winches will be concentrated in the control panel, and the control panel will be huge, so that It is necessary to secure a room to accommodate the control panel, and it is also necessary to replace the entire control panel in case of failure or life.

  On the other hand, as described above, in the stage apparatus in which the control device for controlling the winches is provided and the control device is controlled by the host control device, the host control device itself can be downsized and the control device Since it is installed in the vicinity of the winch, there is no need to install a room for accommodating the control panel, and there is an advantage that it is sufficient to replace only the control device that has failed or has reached the end of its life.

JP, 2014-125320, A

  However, in the above-mentioned stage apparatus, when one baton is driven up and down by a plurality of winches, when a plurality of winches or a part of a plurality of control devices fail, all the winches are quickly stopped. It took time.

  In the conventional stage apparatus, since the upper-level control device controls the control device that controls the winch, the upper-level control device receives the information indicating that the failure has occurred from the control device in which the failure has occurred. The stop instruction is transmitted to the control device.

  The cycle in which the host controller outputs a command to the controller is fixed, and as shown in FIG. 3, a stop signal is transmitted at least one cycle time after a failure occurs, so a normal other Control device takes a long time to stop the winch.

  As described above, if a part of the winches or the control device fails and stops, it takes time to stop the other winches, which causes a problem that the baton tilts.

  Therefore, the present invention was devised in order to improve the above problems, and an object thereof is to provide a stage apparatus capable of shortening the time from the occurrence of a failure to the stop of a normal winch. ..

  In order to solve the above-mentioned object, a stage apparatus according to the present invention includes a plurality of local controllers that control a plurality of winches, respectively, and a host controller that instructs the local controllers to operate the winches. When the winch driven by the device fails, it sends a stop signal to other local controllers to stop.

  Further, in the stage apparatus according to claim 2, since the local controller sends a stop signal to another local controller of a group to which the local controller belongs, it is necessary to synchronize with a local controller that belongs to another group and has a failure. It is not necessary to stop the local controller that does not have.

  Further, in the stage apparatus according to the third aspect, the local controller obtains from the upper-level controller information capable of recognizing another local controller of the group to which the local controller belongs. Therefore, the local controller can grasp the local controllers belonging to the same group in advance, and can specify the receiver and output the stop signal when the local controller fails. Further, the receiver side of the stop signal can also judge whether or not the failed local controller belongs to the same group, and can judge whether or not the winch should be stopped.

  Further, in the stage apparatus according to claim 4, when the local controller fails, the local controller transmits a failure state signal, which is information capable of recognizing its own failure, to the host controller. Therefore, the host controller can recognize the failed local controller. When a local controller fails, in the stage equipment, the host controller does not have to send a drive signal for driving the winch to the other local controllers that should be synchronized with the failed local controller. , You don't accidentally drive the winch.

  According to the stage apparatus of the present invention, it is possible to shorten the time from the occurrence of a failure to the stopping of a normal winch.

It is an example of composition of a stage device of one embodiment. It is a figure explaining the transmission timing of the stop signal in the stage device of one embodiment. It is a figure explaining the transmission timing of the stop instruction in the conventional stage apparatus.

  The stage apparatus 1 of the present invention will be described below. As shown in FIG. 1, the stage apparatus 1 according to one embodiment includes a plurality of local controllers 31, 32, 33, 34 for controlling a plurality of winches 21, 22, 23, 24 capable of feeding and winding a wire W, respectively. And an upper controller 11 that can communicate with the local controllers 31, 32, 33, and 34, and an operation panel 12 that can communicate with the upper controller 11. In this example, one baton B is attached to the tip of each winch 21, 22, 23, 24 so that the baton B can be moved up and down by driving these winches 21, 22, 23, 24. It has become.

  Hereinafter, each part will be described in detail. In this case, the baton B has a long rod shape, and is used to suspend a hanging object such as a light or a curtain. And, one end of the wire W is attached to each of a plurality of positions of the baton B on the left side in FIG. 1, and the other ends of these wires W are attached to the winches 21, 22, 23 and 24. Each wire W is wound up by 22, 23, 24 to raise the baton B, and conversely, the wire W is fed out by the winches 21, 22, 23, 24 to lower the baton B.

  Each winch 21, 22, 23, 24 is configured to include a drum D around which the wire W is wound, a motor M that rotationally drives the drum D, and an electric brake BR that stops the rotation of the drum D. .. The motors M and the electric brakes BR of the winches 21, 22, 23, 24 are drive-controlled by the corresponding local controllers 31, 32, 33, 34.

  The host controller 11 and each of the local controllers 31, 32, 33, 34 are connected via a hub H, and these controllers 11, 31, 32, 33, 34 can communicate with each other. Further, the host controller 11 is communicably connected to the operation panel 12. The operation panel 12, the host controller 11, and the local controllers 31, 32, 33, 34 can be used for communication regardless of wired communication or wireless communication.

  Upon receiving the drive command transmitted from the host controller 11, the local controllers 31, 32, 33, 34 that control the motor M and the electric brake BR in the winches 21, 22, 23, 24 operate the motor M according to the drive command. The wire W is driven to rotate or the drum D is rotated in the winding or winding direction, the baton B is driven at the speed instructed by the drive command, and the electric brake BR is controlled to be stopped at the position instructed by the drive command. ..

  Although not shown in detail, the local controller 31 (32, 33, 34) has a communication unit for communicating with the host controller 11 and other local controllers 32, 33, 34, and a drive command received via the communication unit. Alternatively, a control unit that calculates a control command for controlling the motor M and the electric brake BR based on the stop signal, and a circuit unit that supplies electric power to the motor M and the electric brake BR based on the control command obtained by the control unit. Is configured.

  In addition, the local controller 31 (32, 33, 34) has a self-diagnosis function, and when no failure is recognized in itself, a normal state signal indicating that the host controller 11 is functioning normally. Is to be output. On the other hand, although not shown, the local controller 31 (32, 33, 34) outputs a stop signal when a failure is found in each of the communication section, the control section, and the circuit section, and then the self controller is normal. It outputs a failure status signal indicating that it is not functioning.

  In this example, the operation panel 12 displays an operation unit 12a that can be operated by an operator, a control unit 12b that generates an operation command to be given to the host controller 11 by an operation of the operation unit 12a, and information such as a winch operation status. And a display unit 12c that operates.

  Further, the operation panel 12 can generate an operation command for forming a group with the local controllers 31, 32, 33, 34 desired by the operator, and the local controllers 31, 32, 33 grouped in this manner are used. , 34, the winches 21, 22, 23, and 24 controlled in synchronization can be generated.

  The host controller 11 generates a drive command so that the operator can instruct the operation of the winches 21, 22, 23, 24 as requested by the operator from the operation command from the operation panel 12, and the local controllers 31, 32, 33, It is designed to be sent to 34. In addition, the host controller 11 normally monitors the local controllers 31, 32, 33, and 34 for normal operation by checking whether these local controllers 31, 32, 33, and 34 are operating normally. The normal state signal and the failure state signal described above are received as signals capable of determining whether or not they are functioning. Upon receiving the failure state signal, the host controller 11 outputs to the operation panel 12 information that allows the failed local controller to be recognized, and the operation panel 12 allows the operator to recognize the failed local controller on the display unit 12c. It is displayed in a form that can. When the local controller having the failure is the local controller 31, the host controller 11 receives the failure status signal output from the local controller 31, and the other local controllers 32, 33, which should be synchronized with the local controller 31, No drive signal for driving the winches 22, 23, 24 is transmitted to the controller 34 after the failure of the local controller 31.

  Further, for the local controllers 31, 32, 33, 34 grouped by the operator's operation, the higher-level controller 11 preliminarily recognizes which local controller belongs to the same group as recognizable information. The group information including the identification information of 33 and 34 and the IP address is transmitted. For example, when the operator wants to move the winches 21 and 22 in synchronism with each other, if the local controllers 31 and 32 corresponding to the winches 21 and 22 are grouped, the host controller 11 will cause the local controllers 31 and 32 to move. Information is transmitted so that the local controllers 31 and 32 can recognize that they are in the same group. When the local controller 31 receives this information, it recognizes that the local controllers 32 are in the same group, and when the local controller 32 receives this information, it recognizes that the local controllers 32 are in the same group. In this example, since one baton B is driven by all winches 21, 22, 23, and 24 in synchronization, all local controllers 31, 32, 33, and 34 are grouped. The grouping cancellation and setting of the local controllers 31, 32, 33, 34 can be performed by operating the operation panel 12.

  The stage apparatus 1 is configured as described above, and its operation will be described below. For example, when the operator operates the operation panel 12 to group the local controllers 31, 32, 33, an operation command for grouping the local controllers 31, 32, 33 is input from the operation panel 12 to the upper controller 11. The higher-level controller 11 recognizes the local controllers 31, 32, 33 that the local controllers 31, 32, 33 belong to the same group with respect to the local controllers 31, 32, 33 designated by the operator for grouping. The group information including the identification information of is output. Upon receiving the group information, each of the controllers 31, 32 and 33 recognizes that the local controllers 31, 32 and 33 belong to the same group.

  When the operator performs an operation of raising or lowering the baton B, the operation panel 12 generates an operation command according to the operation of the operator and inputs the operation command to the host controller 11. Upon receiving the operation command, the host controller 11 drives the winches 21, 22, 23 in synchronization with the local controllers 31, 32, 33 to raise the baton B at a speed desired by the operator, as shown in FIG. Alternatively, the drive command is generated and output so as to be lowered. The control cycle for outputting the drive command is predetermined, and when the operation command is received from the operation panel 12 by the operation of the operator, the drive command is output for each control cycle. Note that the three drive command arrows in FIG. 2 indicate the state in which the drive commands from the host controller 11 are output to the three local controllers 31, 32, and 33, respectively. The control cycle of the drive command output by the host controller 11 to each of the local controllers 31, 32, 33 corresponds to the second control cycle.

  Upon receiving the drive command, each of the local controllers 31, 32, 33 drives the winches 21, 22, 23 according to the drive command to raise or lower the baton B at a speed desired by the operator. Further, the local controllers 31, 32, 33 determine whether or not they have a failure. In FIG. 2, the one-dot chain lines extending to the left and right described on the right side of the local controllers 31, 32, 33, 34 indicate the normal and failure states, and the two-dot chain lines indicate either the operable state or the stopped state. ing.

  As a result of the self-diagnosis, the local controllers 31, 32, 33 output a normal state signal as a response in the case of normality, and continue to control the winches 21, 22, 23. The three arrows of the normal state signal in FIG. 2 indicate the states in which the three local controllers 31, 32, and 33 are transmitting the normal state signals to the host controller 11, respectively.

  On the other hand, as shown in FIG. 2, when the local controller 31 self-diagnoses as a result of self-diagnosis after receiving the first drive command and transmitting the normal state signal, the winch controlled by itself is controlled. 21 is immediately stopped, and a stop signal is transmitted to the other local controllers 32 and 33 belonging to the same group. Since the control cycle for performing the self-diagnosis and the current supply to the motor M and the electric brake BR is shorter than the second control cycle in which the host controller 11 transmits the drive command, the drive signal is transmitted after the normal state signal is transmitted. The self-diagnosis in the local controllers 31, 32, 33, 34 is performed even while receiving the. The control cycle in which the local controllers 31, 32, 33, 34 control the winches 21, 22, 23, 24 respectively corresponds to the first control cycle, and the above-mentioned upper controller 11 outputs the drive command. The second control cycle is longer than the first control cycle.

  Upon receiving the stop signal, the other local controllers 32 and 33 immediately stop the winches 22 and 23 controlled by themselves. The first control cycle of the motor M and the electric brake BR of the local controllers 31, 32, 33 is shorter than the second control cycle in which the host controller 11 outputs a drive command, and the winch 22 is received in a short time by receiving the stop signal. 23 can be stopped. Since the local controller 34 does not receive the stop signal, it receives the drive command from the host controller 11 and is in a state where it can operate normally.

  Further, after transmitting the stop signal, the local controller 31 transmits a failure state signal to the higher-level controller 11 because the self-diagnosis indicates a failure. Upon receiving the failure status signal, the host controller 11 outputs information that allows the local controller 31 in which a failure has occurred to be recognized on the operation panel 12. The operation panel 12 displays the failed local controller 31 on the display unit 12c in a manner in which the operator can recognize the local controller 31.

  As described above, the local controller 31 stops the winch 21 when a failure is recognized in itself, and immediately transmits a stop signal to the other local controllers 32 and 33, so that the other local controllers 32 and 33 also fail. The winches 22 and 23 can be stopped in a short time after the occurrence.

  As described above, the stage apparatus 1 according to the present invention includes a plurality of local controllers 31, 32, 33, 34 for controlling the plurality of winches 21, 22, 23, 24, and a winch for the local controllers 31, 32, 33, 34. A stop signal for instructing the other local controllers 32, 33, 34 to stop when the local controller 31 fails or the winch 21 driven by the local controller 31 fails. To send. Therefore, according to the stage apparatus 1 of the present invention, it is possible to shorten the time from the occurrence of a failure until the normal winches 22, 23, 24 are stopped. Further, since the normal winches 22, 23, 24 are stopped in a short time after the stop due to the failure of the winch 21 or the local controller 31, the baton B does not stop in an inclined posture.

  Further, in the stage device 1 of this example, since the local controller sends a stop signal to another local controller of the group to which it belongs, it is necessary to synchronize with a local controller that belongs to another group and has a failure. It is not necessary to stop the local controller that does not have. Therefore, for example, when the local controllers 31, 32, and 33 form a group and a failure occurs in the local controller 31, the local controller 31 sends a stop signal to the other controllers 32 and 33 in the same group, and the local controller 31 transmits the stop signal. Since the stop signal is not transmitted to the local controllers 34 that stop the controllers 32 and 33 but do not belong to the same group, the local controller 34 can continue to drive the winch 24. When the local controller 31 that has recognized the failure transmits a stop signal including the identification information of the local controllers 32 and 33 in the same group, the local controller 31 sends a stop signal to all other local controllers 32, 33 and 34. The local controller 32, 33, 34 that transmits the stop signal determines whether the local controller 32, 33, 34 is in the same group as the local controller 31, and the local controller 32, 33, 34 on the receiver side of the stop signal determines the winches 22, 23, 24. May be stopped by judging whether or not to stop.

  Further, in the stage apparatus 1 of this example, the local controllers 31, 32, 33, 34 obtain information from the higher-level controller 11 so that the other local controllers 31, 32, 33, 34 of the group to which they belong can be recognized. It is supposed to do. Therefore, the local controllers 31, 32, 33, 34 can grasp the local controllers 31, 32, 33, 34 belonging to the same group in advance, and can specify the receiver and output the stop signal when the local controller 31, 32, 33, 34 fails. In addition, the receiver side can also determine whether the failed local controller 31, 32, 33, 34 is a local controller 31, 32, 33, 34 of the same group, and whether or not the winches 21, 22, 23, 24 should be stopped. I can judge.

  Furthermore, in the stage apparatus 1 of the present example, when the local controllers 31, 32, 33, 34 self-failure, the local controller 31, 32, 33, 34 transmits a failure state signal which is information capable of recognizing its own failure. Has become. Therefore, the host controller 11 can recognize the failed local controllers 31, 32, 33, 34, and can notify the operator of the failure through the operation panel 12. When the local controller 31 fails, the local controllers 31, 32, and 33 stop the winches 21, 22, and 23, so that the higher-level controller 11 can synchronize the other local controllers 31 with the failed local controller 31. Even if the drive signal is continuously transmitted to the controllers 32 and 33 after the failure is recognized, there is no problem because the failure status signal is only returned from the local controller 31 as a response. However, after the failure recognition, the transmission of the drive signal may be stopped to the local controllers 31, 32, 33 of the group to which the failed local controller 31 belongs, and in that case, the winches 21, 22, 23 are driven by mistake. You don't have to.

  While the embodiments of the present invention have been described above, the scope of the present invention is not limited to the details shown or described.

1... Stage device, 11... Host controller, 21, 22, 23, 24... Winch, 31, 32, 33, 34... Local controller, W... Wire

Claims (4)

A plurality of local controllers that respectively control a plurality of winches capable of feeding and winding the wire in the first control cycle,
A host controller that instructs the operation of the winch in a second control cycle longer than the first control cycle to the local controller,
The stage controller, wherein the local controller transmits a stop signal for instructing another local controller to stop, when the winch itself or the winch driven by itself fails. When a group is formed by two or more local controllers of the plurality of local controllers, the local controller belonging to the group transmits the stop signal to another local controller of the group to which the local controller belongs. The stage apparatus according to claim 1. The stage apparatus according to claim 2, wherein the local controller belonging to the group obtains from the upper controller information capable of recognizing another local controller of the group to which the local controller belongs. The stage apparatus according to any one of claims 1 to 3, wherein the local controller transmits information capable of recognizing its own failure to the host controller when the local controller fails.

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