JP4823677B2 - Control device for building electrical switchgear - Google Patents

Description

  The present invention belongs to the technical field of a control device in an electric switchgear for buildings such as an electric shutter device provided in an opening of a building.

  In general, in this kind of electric opening and closing device for building, for example, when this is an electric shutter, a shutter curtain arranged in the opening is configured to open and close based on drive control of the opening and closing by the opening and closing control unit. is there. In this case, from the viewpoint of safety, an obstacle detection device that switches a switch based on contact with an obstacle is provided at the lower end of the shutter curtain, and the obstacle detection device (obstacle detection sensor) can be switched. Accordingly, the obstacle detection signal is input to the opening / closing control unit of the switch via the transceiver, and the shutter curtain is urgently stopped in response to the input of the obstacle detection signal, and then for a predetermined time. In some cases, so-called touch-up control is performed during the opening operation. In this case, a pre-closed position detection sensor that outputs a pre-closed position detection signal to the open / close control unit in accordance with detection of the position of the open / close body before full closing is provided, It is proposed to perform touch stop control that only stops the operation of the shutter curtain, assuming that an obstacle detection signal is input after the detection signal is input and that the shutter curtain is fully closed. In this case, if there is a failure in the obstacle detection device or transmitter, even if the shutter curtain comes into contact with the floor surface, the obstacle detection signal is not input to the open / close control unit, and the shutter curtain closing operation continues. As a result, there is a problem that the shutter curtain is reversely wound.

As an improvement measure, an abnormality detection means is provided in the opening / closing control unit, and when a position detection signal before full closing is input during the closing operation of the opening / closing body, a timer time set in advance is set. During the timer time set longer than the time required for the body to reach full closure from the position before full closure, it is judged that there is no obstacle detection signal input as an abnormality detection, and the switch is stopped. At the same time, it has been proposed to switch to an abnormality detection mode in which the shutter curtain operates differently from normal operation. In this case, when switching from the state switched to the abnormality detection mode to the normal mode in which the normal opening / closing operation is performed, after repairing the cause of the abnormality detection, the shutter curtain is fully closed in the abnormality detection mode. For example, an obstacle detection signal is input to the open / close control unit to switch to the normal mode.
Japanese Patent Laid-Open No. 10-10951

  By the way, the conventional obstacle detection device (obstacle detection switch) is provided on the seat plate at the lower end of the shutter curtain, and the obstacle from the obstacle detection device in order to eliminate the troublesomeness of wiring and the like. The detection signal is converted into a wireless signal form and output to the open / close control unit. On the other hand, in recent years, a wide variety of radio waves and light beams have been adopted in many devices, and these are scattered in the vicinity of the shutter device. For this reason, although the obstacle detection device operates normally and outputs an obstacle detection signal from the transmitter, the obstacle detection signal on the switching control unit side (receiver side) for some accidental reason. However, even in the above case, the opening / closing control unit is switched to the abnormality detection mode, and the shutter curtain opening / closing operation thereafter is the normal operation. It will be in a different state. And, in this way, when it becomes the abnormality detection mode, unless it performs a special operation to return from the abnormality detection mode, there is a problem that it is not possible to return to the normal operation state and the operability is inferior, Here is the problem to be solved by the present invention.

The present invention has been created in view of the above circumstances and has been created for the purpose of solving these problems, and the invention of claim 1 controls the drive of an opening / closing member disposed in an opening. A first timer time set in advance after the input of the position detection signal before full closing from the position detection sensor before full closing to the opening / closing control unit in the process of closing control of the switch in the process of closing control of the opening / closing body. During this period, an abnormality is detected when there is no input of an obstacle detection signal from an obstacle detection device that detects contact with an obstacle, and the switch is controlled to stop and an abnormality that switches from the normal control mode to the abnormal control mode. In providing the detection means, the obstacle detection device provided at the lower end of the opening / closing body includes a switch unit that switches to an ON state by contact with an obstacle, and a first switch unit that switches to the ON state. Obstacle detection signal After force, after the lapse of the second timer time set in advance, is composed of a transmission control unit based on the switching to the ON state of the switch section has been made to continue to output the confirmation obstacle detection signal On the other hand, the control device in the electric switchgear for buildings is provided with an abnormality detection canceling means for switching to the normal control mode when the confirmation obstacle detection signal is input to the opening / closing control unit in the abnormal control mode.
In the invention of claim 2, the first timer time is set longer than the closing time required for the opening / closing body to be fully closed from the position before full closing, and the second timer time is the position before the opening / closing body is fully closed 2. The control device for an electrical switchgear for building according to claim 1, which is set to be longer than a time obtained by subtracting a closing time required to be fully closed from the first timer time.

According to the first aspect of the present invention, it is possible to self-diagnose the presence or absence of a failure in the obstacle detection device, and it is possible to provide an electric switching device with good operability.
According to the invention of claim 2, battery consumption of the transmission control unit can be reduced.

Next, embodiments of the present invention will be described with reference to the drawings.
In the drawings, reference numeral 1 denotes a shutter curtain of an electric shutter for building provided in an opening of a building. The shutter curtain 1 is attached to a winding drum 3 provided in a shutter case 2 disposed above the opening. It is wound. The winding drum 3 is linked to an opening / closing machine 4 housed in the shutter case 2, and the winding drum 3 rotates forward / reverse in conjunction with forward / reverse rotation driving of an output shaft (not shown) of the opening / closing machine 4. The shutter curtain 1 is unwound and wound. As a result, the shutter curtain 1 moves the opening up and down while receiving the movement guides of the guide rails 5 whose both side edges are erected on both sides of the opening, and has a fully closed posture for closing the opening and the opening. It is set to change its posture between the fully open posture that opens.
Reference numeral 6 denotes an operation switch arranged in the vicinity of the guide rail 5, and the operation switch 6 is provided with an opening operation switch PBU, a closing operation switch PBD, and a stop operation switch PBS.

  On the other hand, an opening / closing control unit 7 includes an opening / closing control unit 7 a including a microcomputer, and controls the driving of the opening / closing machine 4. The opening / closing control device 7 is disposed in the shutter case 2. The operation switch 6 is connected to the opening / closing control unit 7a. When any one of the opening operation switch PBU, the closing operation switch PBD, and the stop operation switch PBS is operated, the operation switch 6 is opened / closed. It is set so that command signals for opening, closing and stopping are input to the control unit 7a. The open / close control unit 7a outputs the corresponding open drive command, close drive command, and stop drive command to the open / close device 4 when any of the open, close, and stop command signals is input. Thus, the opening / closing machine 4 is opened, closed, and stopped, and the shutter curtain 1 is controlled to be opened and closed.

  The output shaft of the opening / closing machine 4 includes a position detection sensor (a lower limit switch in this embodiment) that detects a position slightly before the shutter curtain 1 is fully closed (10 mm to 20 mm from the floor). ) 8 is provided. When the position detection sensor 8 before full closure detects the position before full closure of the shutter curtain 1, the position detection signal before full closure is set to be output to the open / close control unit 7a.

  On the other hand, the seat plate 9 which is the lower end portion of the shutter curtain 1 is configured in a divided type, and is located on the upper side, and is brought into contact with an obstacle with a fixed seat plate 9a fixed to the slat 1a constituting the shutter curtain 1. The movable seat plate 9b moves upward relative to the fixed seat plate 9a. Reference numeral 10 denotes an obstacle detection device provided on the seat plate 9. The obstacle detection device 10 is provided on the upper portion of the fixed seat plate 9a and a switch portion 10a that switches a switch in accordance with the relative upward movement of the movable seat plate 9b. When the switch of the switch unit 10a is switched (electrical signal), the signal is converted into a radio signal (infrared signal in the present embodiment), and the signal is output with a preset number of words. And a transmission control unit 10b that outputs a single obstacle detection signal (for example, four words). Then, the obstacle detection signal (radio signal) output from the transmission control unit 10b based on the switching of the switch unit 10a (becomes ON state) is received by the receiver 11 provided in the opening / closing control unit 7a. It is set to receive. And the receiver 11 is set so that when the obstacle detection signal of the radio signal is received, the reception control unit 11a converts it into an electrical signal and outputs it to the open / close control unit 7a.

  In the normal use state, the open / close control unit 7a is set to the normal control mode. In this state, the shutter curtain 1 is opened / closed by pressing the closing or opening switches PBU and PBD with one touch. It is set so as to perform self-holding operation control that can be performed.

  In the normal control mode of the open / close control unit 7a, the open / close control unit 7a is provided with an obstacle detection means 7b. When an obstacle detection signal is input in a state in which the position detection signal before full closing is not input in the closing control process in which the closing drive command is output to the opening / closing device 4 to close the shutter curtain 1, the opening / closing operation is performed. The controller 7a determines that this is a contact between the shutter curtain 1 and the obstacle, and outputs a stop drive command for a preset T1 timer time (1 second) to the switch 4 and then is preset. During the T2 timer time (1.5 seconds), an opening drive command is output, the shutter curtain 1 is urgently stopped, and then obstacle detection control is performed to perform the opening operation.

The open / close control unit 7a is provided with a fully closed stop means 7c. In the process of closing control, when an obstacle detection signal is input during a preset T3 timer time after the input of the position detection signal before full closure, the shutter curtain 1 detects this. It is determined to perform full-closed stop control (touch stop control) to stop the shutter curtain 1 by outputting a stop drive command to the switch 4 by judging that the floor is grounded and transformed into a fully closed posture. ing.
Here, the T3 timer time corresponds to the first timer time of the present invention, and is based on the time required for the shutter curtain 1 to perform the closing operation from the pre-closed position to the fully closed position contacting the floor surface. Is set to a long time, and in this embodiment, it is set to 5.0 seconds.

Further, the opening / closing control unit 7a is provided with an abnormality detection means 7d, and after the input of the position detection signal before full closing in the process of the closing control, a failure occurs during a preset T3 timer time. When the object detection signal is not input, it is determined that the obstacle detection device 10 is abnormal, a stop drive command is output to the opening / closing device 4 to stop the shutter curtain 1 urgently, and the opening / closing control unit 7a The control state is set to switch from the normal control mode to the abnormal control mode.
Here, in the abnormal control mode, the opening / closing control unit 7a performs a so-called push-off operation control (push-cut operation) that opens and closes the shutter curtain 1 while pushing the closing or opening operation switches PBU and PBD. Control).

On the other hand, the transmission control unit 10b of the obstacle detection apparatus 10 is provided with a confirmation signal output means 10c, and after the output of the first single obstacle detection signal accompanying the switch switching of the switch unit 10a, Based on the detection that the switch of the switch unit 10a is continuously switched (being in the ON state) after the elapse of a preset T4 timer time (corresponding to the second timer time of the present invention), The obstacle detection signal, that is, the obstacle detection signal for confirmation of the present invention is set to be output again.
Here, during the T4 timer time, there is no obstacle detection signal input even though the T3 timer time has elapsed since the input of the position detection signal before full closing in the switching control unit 7a, and the switching control unit 7a is abnormal. It is set to a time that is the timing after switching to the control mode, and in the state where the shutter curtain 1 is in the fully closed posture and the open / close control unit 7a has shifted to the abnormal control mode, the confirmation obstacle detection signal It is set to input. Incidentally, the T4 timer time is longer than the time obtained by subtracting from the T3 timer time the time necessary for the shutter curtain 1 to perform the closing operation from the fully closed position to the fully closed posture. Is set to 7.0 seconds, and is set to be longer than the T3 timer time.
Although the obstacle detection signal for confirmation is the same signal as the obstacle detection signal in the present embodiment, it is not necessarily the same signal, and it is of course possible to use a different signal form such as making the number of output words different. .

On the other hand, the open / close control unit 7a is provided with an abnormality detection canceling means 7e. In the state where the abnormality detection means 7e determines that an abnormality has occurred and is switched from the normal control mode to the abnormality control mode, When a detection signal, that is, the confirmation obstacle detection signal is input, the control state is set to be switched (returned) from the abnormal control mode to the normal control mode. By the way, the phenomenon that the obstacle detection signal for confirmation is input after the T4 timer time elapses without the first obstacle detection signal being input is due to an accidental trouble with the first obstacle detection signal. It is possible to determine that there is no failure in the obstacle detection device 10 itself, that is, the switch unit 10a and the transmission control unit 10b, simply because there is no input to the open / close control unit 7a. Based on this, the open / close control unit 7a self-diagnose the normality or failure of the obstacle detection device 10, and when it is determined to be normal, by returning from the abnormal control mode to the normal control mode, the operator can When opening the curtain 1 from the fully closed position, the opening / closing operation of the shutter curtain 1 can be continued without feeling any sense of incongruity or inconvenience so that the operability can be improved. It is composed.
The obstacle detection device 10 outputs a confirmation obstacle detection signal after the T4 timer time has elapsed after the first obstacle detection signal is output, even in contact with the obstacle. In this case, the opening / closing control unit 7a Is set not to be in the abnormal control mode but to ignore the obstacle detection signal for confirmation.

Next, an example of the output control of the obstacle detection signal in the transmission control section 10b of the obstacle detection device 10 procedure, on the basis of the flowchart shown in FIG. 4 will be described.
The transmission control unit 10b determines whether or not the switch of the switch unit 10a has been switched. When the switch is switched (switched to the ON state), the transmission control unit 10b is a single (first) obstacle detection signal. The radio signal is output and the T4 timer set at the time is set. Subsequently, the transmission control unit 10b determines whether or not a preset T4 timer time (7.0 seconds) has elapsed, that is, the T4 timer time has elapsed, that is, the shutter curtain on the opening / closing control unit 7a side. If 1 is in the fully closed posture and the obstacle detection signal cannot be input, it is determined that this corresponds to the timing for switching to the abnormal control mode, and in this state, the switch unit 10a is switched (ON state). If it is determined that the switch has been switched, a single radio signal is output as the obstacle detection signal for confirmation, the process returns to the initial state, and the next switch unit 10a is switched. It is set to wait. On the other hand, when it is determined that the switch unit 10a has not been switched (it is in the OFF state) when the T4 timer time has elapsed, the process returns to the initial state and waits for the next switch unit 10a to be switched. Is set to If the switch unit 10a has not been switched without the T4 timer time having elapsed (OFF state), the T4 timer is canceled and the initial state is returned.

It will now be described with reference to the flowchart shown in FIG. 3 an example of a closing control of the shutter curtain 1 according to the switching control unit 7a procedure.
In the closing control, the opening / closing control unit 7a outputs a closing drive command, no input of a stop command signal, no input of an opening command signal, and no input of a position detection signal before full closing, that is, before full closing. When an obstacle detection signal is input on the open side of the position, the obstacle detection control is performed to output a stop drive command for the T1 timer time and an open drive command for the T2 timer time. Here, after the first obstacle detection signal is output, the transmission control unit 10b outputs the confirmation obstacle detection signal after the T4 timer time has elapsed if the switch unit 10a is switched. In this state, the shutter curtain 1 is stopped above the position of contact with the obstacle, and the switch 10a is not switched, and a confirmation obstacle detection signal is output. Never do. Even if the switch 10c is switched for some reason and the confirmation obstacle detection signal is output, the open / close control unit 7a is in the normal control mode, and the confirmation obstacle detection signal is ignored as described above. Is done.

On the other hand, when no stop command signal is input, no open command signal is input, and the input of the position detection signal before full closing is detected, the open / close control unit 7a sets the T3 timer (5.0 seconds). When an obstacle detection signal is input during the T3 timer time, the shutter curtain 1 performs a touch stop control that outputs a stop drive command to the switch 4 assuming that the shutter curtain 1 is in a fully closed position, and returns to the initial state. It is set to be. At this time, although the confirmation obstacle detection signal is input to the open / close control unit 7a after the obstacle detection signal is input, the open / close control unit 7a is in the normal control mode, and the confirmation obstacle detection signal is ignored. The
On the other hand, when no obstacle detection signal is input during the T3 timer time, the shutter curtain 1 should be grounded to the floor, but there is no obstacle detection signal input, and the obstacle detection device 10 has an abnormality. It is determined that there is, and a stop drive command is output to the switch 4 to stop the shutter curtain 1 and to shift from the normal control mode to the abnormal control mode.

Then, in the state of transition to the abnormal control mode, it is determined whether or not the confirmation obstacle detection signal has been input. If the confirmation obstacle detection signal has been input, the transition from the abnormal control mode to the normal control mode is performed. And set to return to the initial state. When there is no confirmation obstacle detection signal input, that is, when it is determined that the obstacle detection device 10 is out of order and no obstacle detection signal is output, the obstacle detection device 10 is used as a reset signal. It is set to return from the abnormal control mode to the normal control mode and return to the initial state as the input is made. .
As described above, in the case where the obstacle detection device 10 outputs an obstacle detection signal instead of a failure, and an accident detection signal is not input to the open / close control unit 7a accidentally, an abnormal control is performed. When the confirmation obstacle detection signal is input immediately after switching to the mode, it can be confirmed that the obstacle detection device 10 has not failed, and the normal control mode is returned from the abnormal control mode to the normal opening / closing operation. It is set to be performed.

  If a stop command signal is input during the closing control process, a stop drive command is output and the process returns to the initial state. If an open command signal is input, a stop drive command is output. It is a conventional control procedure to be set to shift to the open control.

In the present embodiment configured as described, the shutter curtain 1 opens and closes with the opening and closing drive of the opening and closing device 4 that is driven based on a control command from the opening and closing control unit 7a, but the shutter curtain 1 is closed. In the control, the opening / closing control unit 7a detects a position before full closure, and after detecting the position before full closure, if an obstacle detection signal is input from the obstacle detection device 10 within the T3 timer time, a touch stop is performed. Control is performed, and the vehicle stops when there is no gap between the floor surface and the seat plate 9 at the lower end of the shutter curtain 1 when fully closed. When the obstacle detection signal is not input even though the shutter curtain 1 is fully closed (even though the T3 timer time has elapsed), the opening / closing control unit 7a detects the shutter curtain 1 as an abnormality detection. Is stopped and the control mode is shifted to the abnormal control mode.
And even if it shifts to abnormal control mode in this thing, when the switching control part 7a inputs the obstruction detection signal for a confirmation from the transmission control part 10b of the obstacle detection apparatus 10 after this transition, Since the object detection device 10 is configured to self-diagnose that there is no failure and to return from the abnormal control mode to the normal control mode, the operation of the shutter curtain 1 is not inadvertently changed to a normal operation. It is possible to provide an electric shutter with good operability that does not make the user feel uncomfortable or inconvenient.

As described above, when the present invention is implemented, the opening / closing control unit 7a performs a self-diagnosis on the obstacle detection device 10 to perform normal operation control when there is no failure. However, the transmission control unit 10b of the obstacle detection apparatus 10 does not continue to output the obstacle detection signal, but detects the obstacle for confirmation in synchronization with the timing when the opening / closing control unit 7a shifts to the abnormal control mode. Since it is configured to determine whether or not there is a failure by outputting a signal, it is possible to reduce battery consumption of the transmission control unit 10b.
Incidentally, in recent years, it has been proposed that, when the opening / closing control unit 7a detects an abnormality, the history of the abnormality is recorded in the memory of the opening / closing control unit 7a. Even if the accidental abnormality caused by the operation is not switched to the abnormal control mode but is returned to the normal control mode, the switching control unit 7a is not allowed to confirm the failure after the switching to the abnormal control mode. Since it is configured to return to the normal control mode by inputting the object detection signal, there is an advantage that accidental abnormality can be left as a history and can be taken into consideration during maintenance.

  Of course, the present invention is not limited to the above-described embodiment, and bidirectional transmission / reception is performed between the transmission control unit provided on the obstacle detection device side and the reception control unit on the opening / closing control unit side. In the case of being configured so that the transmission control unit can output the obstacle detection signal for confirmation only when the switching control unit side is switched to the abnormal control mode after the output of the obstacle detection signal, In this way, unnecessary signal output can be eliminated.

It is a schematic front view of an electric shutter. It is a block diagram explaining the control state in an opening / closing control part. It is a flowchart figure explaining the output control procedure of the obstruction detection signal in a transmission control part. It is a flowchart figure explaining the control procedure of the switch in an opening / closing control part.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Shutter curtain 3 Winding drum 4 Opening / closing machine 6 Operation switch 7 Opening / closing control unit 7a Opening / closing control part 7d Abnormality detection means 7e Abnormality detection cancellation means 8 Pre-closed position detection sensor 9 Seat plate 10 Obstacle detection apparatus 10b Transmission control part 10c Confirmation signal output means 11 Receiver

Claims (2)

Before the fully-closed position detection sensor that detects the position before opening / closing of the opening / closing body in the process of closing control of the opening / closing mechanism, to the opening / closing control unit that drives and controls the opening / closing body of the opening / closing body arranged in the opening. After the input of the position detection signal, the switch is operated as an abnormality detection when there is no input of the obstacle detection signal from the obstacle detection device that detects contact with the obstacle for a preset first timer time. When providing the abnormality detection means for performing the stop control and switching from the normal control mode to the abnormality control mode, the obstacle detection device provided at the lower end portion of the opening and closing body is switched to an ON state upon contact with the obstacle. after outputting the first obstacle detection signal with the switching of the oN state of the switch unit, after the lapse of the second timer time set in advance has been made to continue to switch to the oN state of the switch unit Especially Therefore, it is composed of a transmission control unit that outputs a confirmation obstacle detection signal, and an abnormality detection that switches to the normal control mode when the confirmation obstacle detection signal is input to the open / close control unit in the abnormal control mode. The control apparatus in the electric switchgear for buildings provided with the cancellation | release means.   The first timer time is set longer than the closing time required for the opening / closing body to be fully closed from the position before full closing, and the second timer time is set for the opening / closing body to be fully closed from the position before full closing. The control device for an electrical switchgear for buildings according to claim 1, wherein the controller is set to be longer than a time obtained by subtracting a required closing time from the first timer time.

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