JP2018203384A - Elevator control device and method - Google Patents

Abstract

To provide an elevator control device that performs operation control to ensure user's safety by appropriately determining door-open traveling of a car.SOLUTION: The elevator control device in an elevator device having closed end position detection sensors installed at a car door and a landing door which are manually opened/closed is characterized by being provided with: input means for inputting an output of the closed end position detection sensor of the car door and an output of the closed end position detection sensor of the landing door; calculation means for confirming that the doors have been correctly opened/closed when the output of the closed end position detection sensor of the car door and the output of the closed end position detection sensor of the landing door make prescribed changes in a predetermined fixed order; and car traveling stop means for stopping car traveling when the doors have not been correctly opened/closed.SELECTED DRAWING: Figure 2

Description

  The present invention relates to an elevator control device and method, and more particularly, to an elevator control device and method when a car door and a landing door are manually opened and closed.

  Conventionally, in an elevator apparatus, in order to prevent the car from traveling while the door is open, a sensor is installed to detect when the car while the door is open moves more than a specific distance from the stop floor. .

  When it is detected by the sensor that the car with the door open has moved beyond a certain distance from the stop floor, the elevator system determines that the car is running with the door open and stops the elevator operation. Let

  By performing such stop control, it is possible to ensure the safety of the user who gets in and out of the car.

  Note that a technique described in Patent Document 1 is known as an elevator apparatus that performs stop control of a car while the door is open.

Patent No. 5714655

  The elevator control device described in Patent Document 1 is of a type in which a car door and a landing door are automatically opened and closed. In addition, in order to detect the open / closed state of the car door and the landing door, an open end position detection sensor and a closed end position detection sensor are provided for each door, and the signals from the total of four position detection sensors are comprehensively determined. This is a type of determining the open / closed state of each door and automatically opening / closing each door. The stop control of the car while the door is open in the elevator control device described in Patent Document 1 is realized on the premise of the above configuration.

  On the other hand, the elevator apparatus targeted in the present invention is of a type in which the car door and the landing door are manually opened and closed. The user confirms that the elevator car has arrived at the destination floor. For example, if boarding, the user will open the landing door and then the car door in that order, and after boarding, the user will close the landing door and then the car door in that order. For the first time, elevator movement is possible.

  Further, the elevator control apparatus targeted in the present invention is provided with only closed end position detection sensors for the doors in order to detect the open / closed state of the car door and the landing door, and includes an open end position detection sensor. In a facility that is not installed, a signal from a total of two closed end position detection sensors is determined to determine the open / closed state of each door, and each door is manually opened / closed.

  In the elevator apparatus targeted by the present invention, in order to realize the stop control of the car while the door is open, the car is considered to be in the door open state by using an inverted signal of the signal from the closed end position detection sensor. The stop control is executed. For example, the door is in the open state because the signal from the closed position detection sensor that is output when the door is in the closed position cannot be obtained continuously for a certain period of time.

  In the stop control of the car when the door is open using this detection detection, the door is open when the closed end position detection sensor is on failure (failed to the normal output state regardless of the open / close position). Nevertheless, since the closed end position detection sensor is in an output state, the car may travel while the door is open.

  For this reason, the elevator control device detects the possibility of failure of the closed-end position detection sensor, returns it to the normal state, and further detects that an on-failure has actually occurred. It needs to be reflected.

  In view of the above, an object of the present invention is to provide an elevator control device and method for performing operation control for appropriately judging the opening of a car door to ensure the safety of a user.

  As described above, in the present invention, an elevator control apparatus in an elevator apparatus in which a car door and a landing door are manually opened and closed, and a closed end position detection sensor is provided on the car door and the landing door. The input means for inputting the output of the closed end position detection sensor of the door and the output of the closed end position detection sensor of the landing door, the output of the closed end position detection sensor of the car door and the output of the closed end position detection sensor of the landing door, Calculation means for confirming that the door has been opened and closed correctly by making a predetermined change in a predetermined order, and a car that stops the car from running when the door is not opened and closed correctly An elevator control device characterized by comprising travel stop means ”.

  The present invention also provides an elevator control method in an elevator apparatus in which a car door and a landing door are manually opened and closed, and a closed end position detection sensor is provided on the car door and the landing door. The output of the end position detection sensor and the output of the closing position detection sensor of the landing door change in a predetermined order in a predetermined order to confirm that the door has been opened and closed correctly. The elevator control method is characterized by stopping the traveling of the car when it is not. "

  ADVANTAGE OF THE INVENTION According to this invention, the elevator control apparatus which performs the operation control for determining a door opening driving | running | working of each car appropriately and ensuring a user's safety | security is realizable.

  Further, according to the embodiment of the present invention, it is possible to detect the possibility of failure of the open end position detection sensor, and further to return to the normal state, and furthermore, a true ON failure has occurred. Can be detected and reflected in the operation of the elevator.

The figure which shows the structure of a general elevator apparatus. The figure which shows the processing flow for aiming at the safety of a user by judging appropriately the door opening driving | running | working of a car using the output of the closed end position detection sensor SC taken in by the elevator control panel 13. FIG. The figure which shows transition of the output of each closed end position detection sensor SC when a user gets on the passenger car. The figure which shows transition of the output of each closed end position detection sensor SC when a user gets off from the passenger car. The figure which shows the processing flow in the elevator control panel 13 which can detect the ON failure of a closed end position detection sensor.

  Embodiments of the present invention will be described with reference to the drawings.

  In the first embodiment, the configuration of an elevator control device that performs operation control for appropriately determining the opening of a car door by using the output of a closed end position detection sensor and ensuring the safety of the user will be described.

  FIG. 1 is a diagram illustrating a configuration of a general elevator apparatus.

  The elevator apparatus 1 has a hoisting machine 12 installed in a machine room 11 above the building 30 and an elevator control panel 13 as an elevator control apparatus. A rope 15 is stretched over the hoisting machine 12, a car 14 is attached to one end thereof, and a counterweight 16 is attached to the other end. When the hoisting machine 12 is driven by the control of the elevator control panel 13, the car 14 and the counterweight 16 move up and down in the hoistway 17.

  Further, the elevator control panel 13 detects that the car 14 has landed on a predetermined floor, and executes brake control for preventing the hoisting machine 12 from being driven. Further, the car 14 is positioned on each elevator floor 18 by raising and lowering in the hoistway 17, but well-known mechanisms for position confirmation, stop operation, and brake operation for this purpose can be used. I will omit the detailed explanation here.

  The elevator apparatus 1 to which the elevator control apparatus of the present invention is applied is different from a general elevator apparatus in the following two points. The first point is that the car door DrC and the landing door Drh are manually opened / closed doors, and the user opens and closes the car door handle 23 and the landing door handle 24 for use. The second point is that the car door DrC side closed end position detection sensor SCc and the landing door Drh side closed end position detection sensor SCh that detect the closed positions of the car door DrC and the landing door Drh are provided. The point is that no position detection sensor is provided. It is assumed that the output of the closed end position detection sensor SC is taken into the elevator control panel 13 together with various other necessary information.

  FIG. 2 shows a processing flow for appropriately judging the opening of the car door by using the output of the closed end position detection sensor SC taken into the elevator control panel 13 to ensure the safety of the user. .

  In process step S 1, which is the first process in the process flow of FIG. 2, various inputs are taken into the elevator control panel 13. Among various inputs, as information on the position of the car 14, information on the stop position detection sensor on each floor, position information on the governor encoder, car door DrC side closed position detection sensor SCc and landing door Drh side closed position detection sensor It contains SCh information.

  In process step S2, the landing state of the car 14 is determined using the position information of the car 14, and when the landing state is determined (Y side), the process proceeds to process step S3 and the hoisting machine 12 is driven. A brake operation is performed to prevent the operation.

  In process step S4, it is confirmed that the door opening / closing operation has been performed. This confirmation process is performed using only the car door DrC-side closed position detection sensor SCc and the landing door Drh-side closed position detection sensor SCh that detect the closed positions of the car door DrC and the landing door Drh. .

  Specifically, when the user gets on the car 14, the landing door Drh is opened ⇒ the car door DrC is opened ⇒ the landing door Drh is closed ⇒ the car door DrC is closed in this order. It confirms from the output of the car door DrC side closed end position detection sensor SCc and the landing door Drh side closed end position detection sensor SCh. This process is performed in process step S41.

  In addition, when the user gets off the car 14, the car door DrC is opened ⇒ the landing door Drh is opened ⇒ the car door DrC is closed ⇒ the landing door Drh is closed in this order. It confirms from the output of the side closed end position detection sensor SCc and the landing door Drh side closed end position detection sensor SCh. This process is performed in process step S42.

  FIG. 3 a shows the transition of the output of each closed end position detection sensor SC when the user gets on the car 14. Here, it is assumed that the output of each closed end position detection sensor SC is “1” when in the closed end position, and “0” otherwise. In this example, the output of the closed end position detection sensor SCh is “1 → 0” at time t1, the output of the closed end position detection sensor SCc is “1 → 0” at the subsequent time t2, and is closed at the subsequent time t3. It is sequentially confirmed that the output of the end position detection sensor SCh becomes “0 → 1” and the output of the closed end position detection sensor SCc becomes “0 → 1” at the subsequent time t4.

  FIG. 3 b shows the transition of the output of each closed end position detection sensor SC when the user gets out of the car 14. Here again, the output of each closed end position detection sensor SC is “1” when in the closed end position, and “0” otherwise. In this example, the output of the closed end position detection sensor SCc becomes “1 → 0” at the time t1, the output of the closed end position detection sensor SCh becomes “1 → 0” at the subsequent time t2, and is closed at the subsequent time t3. It is sequentially confirmed that the output of the end position detection sensor SCc becomes “0 → 1” and the output of the closed end position detection sensor SCh becomes “0 → 1” at the subsequent time t4.

  In processing steps S43 and S44, it is determined that the operation is normal when the output of the closed end position detection sensor SC is changed in the above order. If it is determined to be normal in processing step S43 at the time of boarding, it is confirmed in processing step S5 whether or not the destination floor of the user who has entered the car 14 is specified, and in step S6, the brake of the hoisting machine is released. After that, normal driving is started. If it is determined in the processing step S44 in the latter case that the vehicle is normal in the processing step S5, it is confirmed in the processing step S5 whether or not a new destination floor has been designated. Start driving.

  If it is determined that an abnormal operation has occurred due to the fact that the output of the closed end position detection sensor SC has not been changed in the above order by the processing of processing steps S43 and S44, an abnormal state is displayed in processing step S8.

  It should be noted that a recovery procedure is subsequently performed by the worker in accordance with the display of the abnormal state, and after the recovery, the brake of the hoisting machine is released in the processing step S6, and then normal driving operation is started.

  According to the first embodiment described above, the car door opening travel is appropriately judged and used only from the outputs of the car door DrC side closed position detection sensor SCc and the landing door Drh side closed position detection sensor SCh. It is possible to provide an elevator control device that performs operation control for safety of a person. Further, the possibility of failure of the closed end position detection sensor can be detected.

  In the second embodiment, the contents of the recovery procedure performed by the worker in FIG. Before that, when looking at the causes leading to the display of an abnormal state, many of these are likely to be erroneously operated by the user. Forgetting to close some of the doors or not sure that they had closed. Very rarely, there is a possibility of a device failure (for example, an ON failure of the closed end position detection sensor).

  In the second embodiment, a recovery procedure assuming an operation error by a user will be described. It's easy, but this is a careful re-start of the elevator operation.

  Specifically, when the user gets on the car 14, the landing door Drh is opened ⇒ the car door DrC is opened ⇒ the landing door Drh is closed ⇒ the car door DrC is closed again in this order, The processing steps S43 and S44 in FIG. 2 make a normal determination, and it is highly possible that the subsequent operation is possible. Similarly, when the user gets out of the car 14, the car door DrC is opened ⇒ the landing door Drh is opened ⇒ the car door DrC is closed ⇒ the landing door Drh is closed again in this order. The processing steps S43 and S44 are judged as normal, and the subsequent operation is likely to be possible. According to this correspondence, the user himself / herself can often solve the problem, so it is not necessary to call the worker unnecessarily. Needless to say, the display of the abnormal state in the processing step S8 is canceled when the transition is made normally due to this correspondence.

  According to the second embodiment described above, the normal state can be restored.

  In the third embodiment, detection of an ON failure of the closed end position detection sensor will be described as a device failure that may occur very rarely.

  Here, the on-failure of the closed end position detection sensor will be described. As shown in the example of FIG. 3a, the closed door position detection sensor SCc (or the landing door Drh side closed end position detection sensor SCh) of the car door DrC side. In this state, the output remains “1”. This indicates that the door is determined to be closed regardless of the actual opening / closing state of the car door DrC.

  As apparent from the processing contents of the processing steps S41 and S42 in FIG. 2, when the closed end position detection sensor is on, the elevator car is placed in a stopped state and is prevented from operating. Stopping operation in a device failure state itself is a safety-side measure, but cannot be left as it is, so some kind of detection method is necessary.

  FIG. 4 shows a processing flow in the elevator control panel 13 that can detect an ON failure of the closed end position detection sensor.

  FIG. 4 is obtained by adding processing steps S9 and S10 to the processing flow of FIG. 2. In processing step S9, the abnormality determination in processing steps S43 and S44 occurs continuously. Device failure (on failure) is left and displayed. The display of the processing step S10 is not canceled until the confirmation response by the worker is completed.

  According to the third embodiment, it is possible to distinguish and display whether it is due to carelessness or due to a device failure (for example, an on failure of the closed end position detection sensor).

1: elevator device, 11: machine room, 12: hoisting machine, 13: elevator control board, 14: car, 15: rope, 16: counterweight, 17: hoistway, 18: landing, 23: car door handle , 24: landing door handle 24, DrC: car door, Drh: landing door Drh, SCc: car door DrC side closed end detection sensor, SCh: landing door Drh side closed end detection sensor

Claims (6)

An elevator control device in an elevator device in which a car door and a landing door are manually opened and closed, and a closed end position detection sensor is provided on the car door and the landing door,
Input means for inputting an output of the closed end position detection sensor of the car door and an output of the closed end position detection sensor of the landing door;
The output of the closed end position detection sensor of the car door and the output of the closed end position detection sensor of the landing door are changed in a predetermined order in a predetermined order, so that the door is correctly opened and closed. Computing means for confirming,
An elevator control device comprising: a car travel stop means for stopping travel of the car when the door opening / closing is not performed correctly. The elevator control device according to claim 1,
The closed end position detecting sensor outputs “1” when the car door and the landing door are closed, and “0” otherwise, the predetermined change in the predetermined predetermined order is:
When the user gets in the car, the output of the landing door side closed position detection sensor becomes “1 → 0”, and then the output of the car side closed end position detection sensor becomes “1 → 0”. The output of the door side closed end position detection sensor becomes “0 → 1”, and thereafter the output of the car side closed end position detection sensor becomes “0 → 1”, which is sequentially confirmed. Elevator control device. The elevator control device according to claim 1,
The closed end position detecting sensor outputs “1” when the car door and the landing door are closed, and “0” otherwise, the predetermined change in the predetermined predetermined order is:
When the user gets out of the car, the output of the car side closed end position detection sensor becomes “1 → 0”, and then the output of the landing door side closed end position detection sensor becomes “1 → 0”. The output of the car-side closed end position detection sensor is “0 → 1”, and then the output of the landing door side closed end position detection sensor is “0 → 1”, which is sequentially confirmed. Elevator control device. The elevator control device according to any one of claims 1 to 3,
After detecting that the output of the closed end position detection sensor of the car door and the output of the closed end position detection sensor of the landing door have not changed in a predetermined order, An elevator control device, wherein when it is confirmed that a predetermined change is made in a predetermined order, a procedure for stopping the traveling of the car is canceled. The elevator control device according to any one of claims 1 to 4,
It is detected that the output of the closed end position detection sensor of the car door and the output of the closed end position detection sensor of the landing door have not changed in a predetermined order, and this continues. An elevator control device characterized in that a device failure is determined based on the occurrence of the failure. An elevator control method in an elevator apparatus in which a car door and a landing door are manually opened and closed, and a closed end position detection sensor is provided on the car door and the landing door,
The output of the closed end position detection sensor of the car door and the output of the closed end position detection sensor of the landing door are changed in a predetermined order in a predetermined order, so that the door is correctly opened and closed. The elevator control method is characterized by stopping travel of the car when the door is not correctly opened and closed.

Images