JP4342907B2 - Elevator stop entrance prevention device - Google Patents

Description

  The present invention relates to a device for preventing an entrance of an elevator hall that is opened and closed by a sliding door.

  In a conventional elevator hall entrance / exit prevention device, for example, when the configuration shown in Patent Document 1 is applied to an elevator hall entrance / exit, the output of an inductive sensor provided on each floor is transferred from the input circuit of the door control device to the CPU. Is input. The door motor of the door opening and closing device that opens the sliding door through the output circuit is controlled by an operation of the CPU that is pulled in and output from the sensor in an abnormal state such as decelerating, temporarily stopping, and driving in the reverse door closing direction. Will do. (See Patent Document 1).

JP 10-139333 A (summary)

  In the elevator hall entrance / exit prevention apparatus configured as described above, when sensors are installed at a plurality of halls, it is necessary to separately wire the sensor outputs at the hall sensors at the floors. For this reason, there is a problem that the number of wirings increases, and manufacturing, installation, and maintenance costs increase. In addition, if the sensor output is connected in series using a relay or the like, the number of wires can be reduced. However, when one of the floor halls is pulled in and one of the sensors is activated, the door opening and closing device is controlled in an abnormal state for the hall where the CPU is not operating and the elevator car is not stopped.

  For this reason, the door opening / closing device is unnecessarily controlled at the time of abnormality, and the operation efficiency of the elevator is lowered. In addition, to reduce the number of wires for each floor's landing sensor, and to recognize which floor's pulling sensor was activated, each floor's landing sensor's output was captured by a microcomputer and serialized. A transmission configuration is also conceivable. However, with this configuration, the response may be delayed, and the timing of control when the door opening / closing device is abnormal may be shifted, so that the required pull-in preventing action cannot be obtained.

  The present invention has been made to solve such a problem, and it is possible to prevent the entrance of the elevator hall from being pulled in so that the required number of wires can be easily pulled in at the hall of each floor. The object is to realize the device.

  In the elevator hall entrance / exit prevention device according to the present invention, the elevator hall entrance / exit apparatus is provided at a plurality of halls installed in the elevator hoistway, and is provided at each of the halls for opening and closing the hall entrances and exits. A detection device that operates when an elevator passenger approaches the edge beyond a predetermined position, and opens and closes the sliding door according to the command from the elevator control device, and controls the opening and closing drive of the sliding door when an abnormality occurs. The door opening and closing device, the serial communication circuit connected to each of the detection devices, the detection device connected in series and the detection wiring connected to the elevator control device and the serial communication circuit connected in series to the elevator control device It is connected to the connected serial communication line and the elevator control device. A detection control device is provided which car elevator is canceled by the detection output mask signal operation output from the detection device of landing the remaining except the hall stop.

  In the elevator hall entrance / exit prevention device according to the present invention, the operation output from the remaining hall detection device excluding the hall where the elevator car stops is canceled by the detection control device via the detection output mask signal. Then, when the detection device is activated when the sliding door of the hall where the car stops is opened, the sliding door that is opened through the door opening / closing device is controlled by the detection control device in an abnormal state. In such a configuration, the number of wirings can be reduced by connecting the detection devices respectively provided at a plurality of halls in series with the detection wirings.

  The reduction in the number of wires has the effect of reducing manufacturing, installation and maintenance costs. In addition, when one of the landing detection devices on each floor is activated, the door opening operation of the landing doors is not controlled in an abnormal state due to the operation of the detection device at the landing where the elevator car is not stopped. For this reason, there is an effect of preventing a problem that the opening operation of the sliding door at the landing is unnecessarily controlled at the time of abnormality and the operation efficiency of the elevator is lowered. Further, the response based on the operation of the detection device at the landing where the elevator car stops is not delayed. For this reason, there is no deviation in the timing of the abnormal control during the door opening operation of the landing door, and there is an effect of obtaining an effective pull-in preventing action.

Embodiment 1 FIG.
1 and 2 are diagrams showing an embodiment of the present invention. FIG. 1 is a block diagram conceptually showing the arrangement and connection of devices of the retracting prevention device, and FIG. 2 is a diagram of the drawing preventing device of FIG. It is a flowchart explaining operation | movement. In the figure, although not shown in the drawing, a plurality of landings installed in the elevator hoistway, that is, sliding doors that open and close the entrances and exits are arranged at the landings from the first floor to the m-th floor. Moreover, the detection apparatus 1 (1-m) is provided in each hall.

  And the detection apparatus 1 (1-m) act | operates when the passenger of an elevator approaches the edge part of an entrance / exit beyond a predetermined position. The detection device 1 (1 to m) is formed of a photoelectric device and includes a light receiver 2, a projector 3, and a sensor relay 4. Further, a mask relay 5 (1 to m) that is provided corresponding to each of the detection devices 1 (1 to 1) and short-circuits the sensor relay 4 is provided as a main part of the detection control device to be described later, and detection control to be described later. A microcomputer 6 (1 to m) that forms a main part of the apparatus and controls the output of the detection apparatus 1 (1 to m) and a serial communication circuit 7 (1 to m) of the microcomputer 6 are provided.

  Further, an elevator control device 8 is provided with an input circuit 9, a control CPU 10 connected to the input circuit 9, and a control serial communication circuit 11 connected to the control CPU 10. And the detection wiring 12 which connected to the input circuit 9 of the control apparatus 8 and connected the detection apparatus 1 (1-m) in series is provided. A serial communication line 13 connected to the control serial communication circuit 11 of the control device 8 and serially connected to the serial communication circuits 7 (1 to m) is provided. Further, a door opening / closing device 14 for opening / closing the sliding door of the landing and a detection control device 15 for controlling the opening / closing driving of the sliding door at the time of abnormality are connected to the control device 8.

  In the elevator hall entrance / exit prevention device configured as described above, the door opening / closing device 14 operates in accordance with an instruction from the control device 8 to open / close the sliding door to open / close the hall entrance / exit. And the detection apparatus 1 act | operates when the passenger of an elevator approaches the entrance / exit edge part of a landing place beyond a predetermined position when the sliding door is opened. As a result, the detection control device 15 operates, and abnormal control such as decelerating, temporarily stopping, or reversing the sliding door that opens through the door opening / closing device 14 is performed as described below.

  That is, the sliding door abnormality control during the operation of the detection device 1 will be described with reference to the flowchart shown in FIG. That is, if the next stop floor of the car is determined during operation of the elevator in step 101, the process proceeds to step 102, where the control CPU 10 of the control device 8 connected to the detection control device 15 detects the stop floor (n floor) detection device. 1 is instructed to cancel the mask, and the detection apparatus 1 on the other floors except the stop floor (the nth floor) is instructed to perform masking. Next, proceeding to step 103, the microcomputer 6 on the stop floor (n floor) turns on the power of the corresponding light receiver 2 and projector 3.

  Then, proceeding to step 104, the microcomputer 6 at the stop floor (n-th floor) turns off the corresponding mask relay 5, and the microcomputer 6 at other floors other than the stop floor (n-th floor) turns on the corresponding mask relay 5 And Next, the process proceeds to step 105, and if the detection wiring 12 is not turned on, the process proceeds to step 106, and if the detection wiring 12 is turned on, the process proceeds to step 107. In step 106, a voice message indicating that the passenger is leaving the sliding door is broadcast to the passengers at the hall.

  Next, the process proceeds to step 108, and if the detection wiring 12 is ON, the process proceeds to step 107, and if not, the process proceeds to step 109. If the predetermined time has not elapsed in step 109, the process returns to step 108. If the predetermined time has elapsed, the process proceeds to step 110, and the operation of the detection control device 15 causes the door opening / closing device 14 to be controlled in the event of an abnormality. -The door is opened with reduced power and proceeds to step 111.

  Next, if the sliding door is opened to a predetermined position in step 111, the process proceeds to step 112. In step 107, the sliding door is opened at a normal speed and force, and the process proceeds to step 113. If the detection wiring 12 is ON, the process proceeds to step 114. If the detection wiring 12 is not ON, the process proceeds to step 115. In step 115, the door opening / closing device 14 is controlled in an abnormal state by the operation of the detection control device 15. For example, the sliding door is stopped and the process returns to step 106.

  If the sliding door is not opened to the predetermined position in step 114, the process returns to step 113, and if the sliding door is opened to the predetermined position, the process proceeds to step 112. In step 112, the control CPU 10 instructs the detection devices 1 on all floors to perform masking. Next, the routine proceeds to step 116, where the microcomputers 6 on all floors short-circuit the corresponding mask relays 5 respectively. Then, the process proceeds to step 117, and the microcomputers 6 on all the floors turn off the corresponding light receivers 2 and projectors 3 and return to step 101.

  As described above, the operation output from the remaining hall detection device 1 excluding the hall where the elevator car stops is canceled by the detection control device 15 via the detection output mask signal. Thus, when the detection device 1 is activated when the sliding door of the landing where the car stops is operated, the door opening operation of the sliding door is controlled by the detection control device 15 via the door opening / closing device 14. In such a configuration, the number of wirings can be reduced by connecting the detection devices 1 respectively provided at a plurality of landings in series by the detection wirings 12.

  Thus, manufacturing, installation, and maintenance costs can be reduced by reducing the number of wires. In addition, when one of the landing detection devices 1 on each floor is activated, the door opening / closing device 14 is not controlled when there is an abnormality because the elevator car is not stopped. For this reason, it is possible to prevent a problem that the sliding door is unnecessarily controlled at the time of abnormality and the operation efficiency of the elevator is lowered. In addition, the response based on the operation of the detection device 1 at the landing where the elevator car stops is not delayed. For this reason, there is no deviation in the timing of the sliding door malfunction control by the door opening and closing device 14, and an effective pull-in preventing action can be obtained.

Further, the power consumption can be reduced by turning off the light receiver 2 and the projector 3 of the detector 1 on the floor where the elevator car does not stop.
The above-described operation can be obtained even if the sensor relay 4 and the mask relay 5 (1 to m) made of mechanical relays are made of a semiconductor such as a photo MOS relay. Further, the above-described operation can be obtained even if the transmission type detection device 1 having the light receiver 2 and the light projector 3 is a detection device composed of a sensor other than the transmission type such as a capacitance detector.

Embodiment 2. FIG.
FIG. 3 is a view corresponding to FIG. 1 showing another embodiment of the present invention. In the figure, the same reference numerals as those in FIG. 1 indicate corresponding parts, and the light receiver 2 of the detection apparatus 1 is controlled by the light receiver control circuit 16, the sensor transistor 17 controlled by the light receiver control circuit 16, and the microcomputer 6 (1 to m). A masking transistor 18 is provided.

  Also in the elevator hall entrance / exit prevention device configured as described above, the door opening / closing device 14 operates in accordance with a command from the control device 8 to open / close the sliding door to open / close the hall entrance / exit. And the detection apparatus 1 act | operates when the passenger of an elevator approaches the entrance / exit edge part of a boarding hall beyond a predetermined position when the sliding door opens. As a result, the detection control device 15 is operated, and abnormal time control such as deceleration, temporary stop, and reverse door closing of the sliding door that opens through the door opening and closing device 14 is performed.

  When the light receiver 2 receives light, the sensor transistor 17 is turned on, and the sensor transistor 17 is connected to the primary side of the sensor relay 4. The secondary side of the sensor relay 4 on each floor is connected in series, one is connected to the power supply and the other is connected to the input circuit 9 in the control device 8. The primary side of the sensor relay 4 is also connected to the masking transistor 18, and the masking transistor 18 is connected to the microcomputer 6 (1-m). Then, the microcomputer 6 (1 to m) turns on / off the masking transistor 18 by the mask command of the detecting device 1 (1 to m) from the control device 8 via the control serial communication circuit 11.

  When the light receiver control circuit 16 in the light receiver 2 of the detection device 1 receives light, the sensor transistor 17 is turned ON, and the microcomputer 6 (1 to m) is masked by the mask command of the detection device 1 (1 to m). Transistor 18 is turned ON. When the sensor transistor 17 or the mask transistor 18 is turned on, a current flows through the coil of the sensor relay 4 and the sensor relay 4 is turned on.

  Further, the microcomputers 6 (1 to m) on the other floors except the stop floor (the nth floor) of the elevator car turn on the mask transistor 18 in response to a mask execution command. For this reason, even if the light receiver 2 is not receiving light, the sensor relays 4 on the other floors except the stop floor (the nth floor) of the car are turned on. Since the microcomputer 6 (n) on the stop floor (n floor) of the car turns off the mask transistor 18, the sensor transistor 17 is turned on when the corresponding light receiver 2 receives light. Thereby, the sensor relay 4 (n) is turned ON, and if the corresponding light receiver 2 does not receive light, the sensor transistor 17 (n) is turned OFF and the sensor relay 4 (n) is turned OFF.

  As described above, the operation output from the remaining hall detection device 1 except for the hall where the elevator car stops is detected by the detection control device 15 in the same manner as in the embodiment shown in FIGS. It is cancelled through. Thus, when the detection device 1 is activated when the sliding door of the landing where the car stops is operated, the door opening operation of the sliding door is controlled by the detection control device 15 via the door opening / closing device 14.

Therefore, although the detailed description is omitted, the same operation as the embodiment of FIGS. 1 and 2 can be obtained also in the embodiment of FIG.
In addition, it is also possible to use a transistor in which the mask transistor 18 is connected by a photocoupler so that the light receiver 2 and the microcomputer 6 or a power supply ground of a microcomputer for landing described later are shared.

  Further, since the light receiver 2 and the microcomputer 6 (1 to m) drive the same sensor relay 4, the sensor relay 4 can be reduced by one for each floor, and the manufacturing cost can be reduced. In addition, although the sensor transistor 17 and the mask transistor 18 increase, the detection wiring 12 that connects all the elevator halls in series has a high voltage of about 48V. On the other hand, since only about 5V transistors and photocouplers are added, the whole elevator apparatus can be manufactured at low cost and can be made compact.

Embodiment 3 FIG.
FIG. 4 is also a view corresponding to FIG. 1 showing another embodiment of the present invention. In the figure, the same reference numerals as those in FIG. Also, a masking microcomputer 5 (1 to m) connected to the mask relay 5 (1 to m), the light receiver 2 of the detection device 1 and the projector 3 is provided.

  The hall serial communication circuit 21 (1 to m) is connected to the hall microcomputer 20 (1 to m). Further, a landing serial communication line 22 connected to the control landing serial communication circuit 19 of the control device 8 and connected to the landing serial communication circuit 21 (1 to m) in series is provided. A hall indicator 23 (1 to m) and a hall button 24 (1 to m) are connected to the hall microcomputer 20 (1 to m).

  Also in the elevator hall entrance / exit prevention device configured as described above, the door opening / closing device 14 operates in accordance with a command from the control device 8 to open / close the sliding door to open / close the hall entrance / exit. And the detection apparatus 1 act | operates when the passenger of an elevator approachs the entrance / exit edge of a landing hall beyond a predetermined position when the sliding door is opened. As a result, the detection control device 15 is operated, and abnormal time control such as deceleration, temporary stop, and reverse door closing of the sliding door that opens through the door opening and closing device 14 is performed.

  As in the above-described embodiments of FIGS. 1 and 2, the operation output from the remaining hall detection device 1 except for the hall where the elevator car stops is detected by the detection control device 15 via the detection output mask signal. Canceled. Thus, when the detection device 1 is activated when the sliding door of the landing where the car stops is operated, the door opening operation of the sliding door is controlled by the detection control device 15 via the door opening / closing device 14. Therefore, although the detailed description is omitted, the same operation as the embodiment of FIGS. 1 and 2 can be obtained also in the embodiment of FIG.

  The landing microcomputer 20 (1 to m) communicates with the control CPU 10 via the landing serial communication line 22 to control the landing indicator 23 (1 to m) and the landing button 24 (1 to m). Thereby, the mask microcomputer 20 (1 to m) that has been conventionally installed for the mask control of the detection device 1 controls the mask relay 5 (1 to m). With this configuration, the entire elevator apparatus can be manufactured at low cost and can be made compact.

Embodiment 4 FIG.
FIG. 5 is also a view corresponding to FIG. 1 showing another embodiment of the present invention. In the figure, the same reference numerals as those in FIGS. 3 and 4 indicate the corresponding parts.
Also in the elevator hall entrance / retraction prevention apparatus configured as described above, the door opening / closing device 14 operates in accordance with an instruction from the control device 8 to open / close the sliding door to open / close the hall entrance / exit.

  And the detection apparatus 1 act | operates when the passenger of an elevator approachs the entrance / exit edge of a landing hall beyond a predetermined position when the sliding door is opened. As a result, the detection control device 15 is operated, and abnormal time control is performed such as decelerating, temporarily stopping, or reversing the sliding door that opens through the door opening and closing device 14. Similarly to the embodiment of FIGS. 1 and 2 described above, the operation output from the remaining hall detector 1 except for the hall where the elevator car stops is detected by the detection controller 15 via the detection output mask signal. Canceled.

  As a result, when the detection device 1 is activated when the sliding door of the hall where the car stops is opened, the detection control device 15 controls the sliding door that is opened through the operation of the door opening / closing device 14 in an abnormal state. Therefore, although the detailed description is omitted, the same operation as the embodiment of FIGS. 1 and 2 can be obtained also in the embodiment of FIG.

  The landing microcomputer 20 (1 to m) communicates with the control CPU 10 via the landing serial communication line 22 to control the landing indicator 23 (1 to m) and the landing button 24 (1 to m). As a result, the mask microcomputer 18 (1 to m), which has been conventionally installed for mask control of the detection device 1, controls the mask transistor 18. With this configuration, the entire elevator apparatus can be manufactured at low cost and can be made compact.

BRIEF DESCRIPTION OF THE DRAWINGS It is a figure which shows Embodiment 1 of this invention, and is a block diagram which shows notionally the arrangement | positioning and connection of the apparatus of a drawing-in prevention apparatus. The flowchart explaining operation | movement of the drawing-in prevention apparatus of FIG. It is a figure which shows Embodiment 2 of this invention, and is FIG. It is a figure which shows Embodiment 3 of this invention, and is the FIG. 1 equivalent figure mentioned above. It is a figure which shows Embodiment 4 of this invention, and is FIG. 1 equivalent figure mentioned above.

Explanation of symbols

1 detector, 2 light receiver, 3 projector, 6 microcomputer, 7 serial communication circuit, 8
Control device, 12 detection wiring, 13 serial communication line, 14 door opening and closing device, 15 detection control device, 16 light receiver control circuit, 17 sensor transistor, 18 mask transistor, 20 landing microcomputer, 21 landing serial communication circuit, 22 Serial communication line for landing, 23 landing indicator, 24 landing button.

Claims (5)

  Equipped in a plurality of halls installed in the elevator hoistway, the sliding doors that respectively open and close the entrances and exits of these halls, the passengers of the elevator beyond a predetermined position at the edge of the entrance and exit A detection device that operates when approaching, a door opening and closing device that opens and closes the sliding door according to a command of the elevator control device, and controls the opening and closing drive during an abnormality when one of the detection devices is operated; and A serial communication circuit connected to each; a detection wiring connected in series to the detection device; and a serial communication line connected in series to the serial communication circuit connected to the control device; Connected to the control device, the rest of the halls are detected except for the hall where the elevator car stops according to the command of the control device. Elevator landing doorway of retracted prevention device and a detection control unit to cancel the detection output mask signal operation output from the device.   The detection control device is provided with a photoreceiver control circuit in the photoreceiver of the detection device, a sensor transistor controlled by the photoreceiver control circuit, and a mask transistor controlled by a microcomputer connected to the serial communication circuit. By turning ON / OFF the mask transistor in accordance with a command from the control device, the operation output from the detection device of the remaining hall except for the hall where the elevator car stops is canceled by a detection output mask signal. The elevator landing entrance entrance prevention device according to claim 1, wherein   2. The elevator landing entrance according to claim 1, wherein the detection control device has a function of shutting off the power of the light receiver and the light projector of the detection device in accordance with a detection output mask command of the elevator control device. Prevention device.   The apparatus according to claim 2, wherein the detection control device has a function of shutting off a power supply of a projector of the detection device in accordance with a detection output mask command of the elevator control device.   The detection controller is arranged between the detection device and the hall serial communication line connected to the controller, and a hall microcomputer is arranged, and the hall corresponding to the hall indicator and hall button provided at the hall of the elevator A function to cancel the operation output from the detection device of the remaining hall except for the hall where the elevator car stops, which is controlled by the hall microcomputer, by the detection output mask signal by the hall serial communication line. The elevator landing entrance entrance prevention device according to any one of claims 1 to 4, wherein the elevator entrance / exit entrance prevention device is provided.

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