JP5706781B2 - Elevator earthquake recovery diagnosis operation device - Google Patents

Description

  The present invention relates to an elevator restoration diagnosis operation device for an elevator.

  In general, elevator systems are designed to operate in seismic control as a safety measure in the event of an earthquake. When a seismometer installed in a building detects an earthquake of a predetermined magnitude or greater, seismic control operation is performed. By doing so, the elevator car in operation is suspended and controlled to the nearest floor. And when recovering an elevator that has been put into a dormant state by such seismic control operation, conventionally, an operator (maintenance staff) visits the elevator to perform diagnostic operation, and confirms whether there is an abnormality and recovers it. Although it has been determined whether it is possible or not, there is a problem in that it takes too much time to recover.

  Therefore, in order to shorten the time required for restoration, conventionally, the diagnosis operation is stored as a program in the technology of remotely performing the diagnosis operation via a communication line or the control device of the elevator. A technique is known in which a diagnostic operation is performed by activating. In addition, after the seismometer senses the earthquake and puts the elevator into a dormant state, it detects the aftershock by returning the once operated seismometer, and the technology to return the elevator more safely is also known ( For example, see Patent Document 1).

JP-A 61-64683

  The above-described prior art puts the elevator in a dormant state after the seismometer senses an earthquake, restores the seismometer that has been in operation after this preset dormant state has been set in advance, and performs a recovery diagnosis operation. When no abnormality is found in the result of the restoration diagnosis operation, the elevator is returned to the normal state. Here, the predetermined time set in advance is the time from the occurrence of the mainshock until the aftershock is thought to have subsided, and the value (predetermined time) is not changed each time an earthquake occurs. Sometimes aftershocks may occur, in which case each elevator device may fail. Moreover, although the prior art disclosed in Patent Document 1 is designed to detect aftershocks by returning the once operated seismometer, the seismometer installed in the building has the largest shaking due to the earthquake. It is impossible to detect the vibration of the elevator car and the counterweight. Therefore, even if there is a risk that vibrations in the car or counterweight may cause equipment damage when an aftershock occurs, the seismometer will not operate and recovery operation will start, leading to failure of the elevator equipment. there is a possibility.

  The present invention has been made in view of the actual situation of the prior art as described above, and its purpose is to perform restoration diagnosis operation during an earthquake of an elevator that can carry out restoration diagnosis operation with a low possibility of failure of the elevator equipment. To provide an apparatus.

In order to achieve the above object, the present invention provides an earthquake recovery system for an elevator that has been put into a dormant state by a seismic control operation that is activated by a seismic detector installed in a building. in seismic restoration diagnosing operation device for an elevator which is adapted to determine whether the recovery from hibernation performing diagnosis operation, attached to each vibration detection sensor counterweight at least the car, the vibration detecting sensor is detected during aftershocks occurrence When the magnitude of the vibration is less than or equal to a predetermined value, the standby time until the earthquake restoration diagnosis operation is extended , and the magnitude of the vibration detected by the vibration detection sensor is set to a predetermined value. When exceeding, it is characterized by maintaining the resting state of the elevator .

After an earthquake occurred, aftershocks were detected by each vibration detection sensor attached to multiple elevator equipment including at least a car and a counterweight for an elevator that was suspended due to seismic control operation . When the magnitude of vibration is less than or equal to a predetermined value, the standby time until the start of restoration diagnosis operation is extended , and the magnitude of vibration detected by each vibration detection sensor exceeds a predetermined value. In such a case, the resting state of the elevator is maintained, so that at the time of aftershock occurrence, the restoration diagnosis operation can be performed in a state where there is little possibility of failure of the elevator equipment.

In the elevator restoration diagnosis operation device according to the present invention, at least when the aftershock occurs, the elevator that has been suspended due to the seismic control operation when the earthquake detector installed in the building detects a predetermined vibration. The degree of shaking of each of the elevator equipment including counterweights is detected by the vibration detection sensor, and as a result, if it is determined that recovery is possible, the standby time until the earthquake recovery diagnosis operation is extended . When it is judged that there is a possibility of equipment damage due to an aftershock, the elevator is kept in a dormant state . Therefore, at the time of an aftershock, it is possible to carry out restoration diagnosis operation with a low possibility of elevator equipment failure. it can.

1 is a block configuration diagram of an elevator system including an earthquake recovery diagnosis operation device according to an embodiment of the present invention. It is a flowchart which shows the operation | movement procedure of this elevator system. It is a flowchart which shows the operation | movement procedure at the time of the aftershocks generation | occurrence | production of this elevator system.

  Hereinafter, an embodiment of the invention will be described with reference to the drawings. As shown in FIG. 1, an elevator system according to this embodiment includes an elevator car 1 and a main rope 2 for lifting the car 1. And a counterweight 3 that is lifted by the main rope 2 to balance the car 1, a hoist 4 for raising and lowering the car 1, and a contact between the car 1 and the counterweight 3 A pulley 5, a control device 6 for controlling the operation of the elevator, a monitoring device 7 connected to the control device 6 for monitoring the operation state of the elevator, and connected to the control device 6 when an earthquake is detected. A seismometer 8 that outputs a signal, a vibration detection sensor 9 that detects a swing of the car 1, a vibration detection sensor 10 that detects a swing of the control device 6, and a vibration detection sensor that detects a swing of the counterweight 3. And a 1 Tokyo.

  The control device 6 receives the signals from the I / F (interface) circuit 12 that performs communication with other devices, the operation control means 13 that controls the operation of the elevator, and the monitoring device 7, and performs the recovery diagnosis operation. It comprises diagnostic operation execution means 14.

  The seismometer 8 includes an I / F circuit 15 that communicates with other devices, a high-gull detection means 16 that operates when a shake (gull) that seems to be difficult to restore the elevator is detected, and the restoration of the elevator The low-gull detecting means 17 that operates when a possible shaking is detected, and the low-gull returning means 18 that returns the low-gull detecting means 17 that has once operated by a signal from the monitoring device 7 are configured.

  The monitoring device 7 includes an I / F circuit 19 that communicates with other devices, and a P wave detection unit that receives signals from the vibration detection sensors 9 to 11 and detects a P wave (pitch) when an aftershock occurs. 20, an aftershock from the detection results from the S wave detection means 21 that receives signals from the vibration detection sensors 9 to 11 and detects S waves (rolling), and the detection results from the P wave detection means 20 and the S wave detection means 21. In response to the determination result of the vibration determination means 22, the suspension time measurement timer 23 that counts the time from when the elevator is in a rest state after the occurrence of an earthquake until the start of the restoration diagnosis operation, and the vibration determination hand throw 22 Timer clear means 24 for clearing the count value of the downtime measurement timer 23, and a low-gull return signal to the seismometer 8 when the count value of the downtime measurement timer 23 reaches a predetermined time. Meter return command output means 25, diagnostic operation start command output means 26 that outputs a recovery diagnosis operation start command to the control device 6, diagnosis result determination means 27 that performs pass / fail determination of the recovery diagnosis operation, and diagnosis result determination means Elevator recovery command output means 28 for outputting an elevator recovery command to the control device 6 based on the determination result of 27, and an elevator stop command output for outputting an elevator stop command to the control device 6 based on the determination result of the diagnosis result determination means 27 And means 29.

  Next, an operation procedure of the elevator system shown in FIG. 1 when an earthquake occurs will be described with reference to the flowcharts of FIG. 2 (steps S100 to S113) and FIG. 3 (steps S114 to S119). FIG. 3 shows the operation procedure when an aftershock occurs.

  When an earthquake occurs, the seismometer 8 operates by detecting the occurred earthquake. First, in step S100, when the seismometer 8 detects a vibration higher than a predetermined high gall generated by the internal high gull detecting means 16. The process proceeds from step S100 to step S102. In step S <b> 102, the high gall detection means 16 that has detected a vibration of high gull or higher outputs a high gull detection signal to the control device 6 via the I / F circuit 15. The operation control means 13 that has received the high gull detection signal from the high gall detection means 16 via the I / F circuit 12 stops the car 1 in the operating state at the nearest floor, and then checks by the maintenance staff. The elevator is kept in a rest state until is done.

  When the high gal does not operate in step S100, that is, when the seismometer 8 does not detect the vibration higher than the predetermined high gal, the process proceeds from step S100 to step S101. In this step S101, when the seismometer 8 detects a vibration of a predetermined low gal or more generated by the internal low gal detection means 17, the process proceeds to step S103, and if the earthquake vibration is less than the low gal, the process proceeds to step S104. move on. That is, when the vibration associated with the occurrence of the earthquake is not detected by the seismometer 8, the seismometer 8 does not operate and proceeds from step S101 to step S104, and the elevator continues normal operation without being stopped.

  On the other hand, when the process proceeds from step S101 to step S103, the low gull detection means 17 that has detected the vibration of the low gall or more and less than the high gull outputs a low gull detection signal to the control device 6 via the I / F circuit 15. After that, the operation control means 13 that has received the low-gull detection signal from the low-gull detection means 17 via the I / F circuit 12 stops the car 1 that is in operation to the nearest floor and puts the elevator into a dormant state. .

  Next, in step S105, when the stop time measuring timer 23 in the monitoring device 7 detects that the elevator is in a stop state, the stop time measurement timer 23 starts measuring the duration of the stop state, and then starts a timer up to a preset value. Count up.

  Next, in step S106, the seismometer return command output means 25 in the monitoring device 7 determines whether or not the duration of the pause state measured by the pause time measurement timer 23 has reached a preset value. If the continuation time of the dormant state has not reached the set value, the process proceeds from step S106 to step S114 (see FIG. 3). The vibration detection sensor 10 attached to the control device 6 fixed to the building measures vibrations of the control device 6 in the front / rear / left / right / up / down directions, and sends the measured signal to the I / F circuit 19 of the monitoring device 7. To the P wave detecting means 20 and the S wave detecting means 21, respectively.

  As shown in FIG. 3, in step S114, the P wave detection means 20 and the S wave detection means 21 analyze the signal measured by the vibration detection sensor 10, and detect P waves and S waves. The P wave and S wave are detected by detecting the P wave when the control device 6 has a large vertical component compared to the front / rear / left / right direction, and detecting the S wave when the front / rear / left / right component is large. If at least one of them is detected, it is determined that an aftershock has occurred, and the process proceeds to step S115. If neither P wave nor S wave is detected, the process proceeds to step S106 (see FIG. 2).

  Next, in step S115, the vibration detection sensor 9 attached to the car 1 measures vibrations in the front and rear, left and right, and up and down directions of the car. Further, the vibration detection sensor 11 attached to the counterweight 3 measures the vibrations of the counterweight in the front-rear, left-right, and vertical directions. The vibration detection sensor 9 and the vibration detection sensor 11 transmit the measured vibration data to the vibration determination unit 22 via the I / F circuit 19. The vibration determination means 22 that has received the vibration data from the vibration detection sensor 9 and the vibration detection sensor 11 compares the threshold value preset in itself with the received vibration data. As a result of the comparison, if both the vibration of the car 1 and the vibration of the counterweight 3 are equal to or less than the threshold value, it is determined that the vibration due to the aftershock did not cause the equipment damage, and the process proceeds to step S116. If at least one of the vibration of the car 1 and the vibration of the counterweight 3 exceeds the threshold value, it is determined that there is a possibility of equipment damage due to an aftershock, and the process proceeds to step S113 (see FIG. 2). The elevator will remain in a dormant state until inspection is performed by a crew member. Here, the threshold value preset in the vibration determination means 22 includes a threshold value (A) for vibration of the car 1 and a threshold value (B) for vibration of the counterweight 3, and the threshold value (A) is the car 1. The threshold value (B) is the minimum magnitude of vibration that damages the counterweight 3 and the equipment attached to the counterweight 3.

  As described above, when the determination result of the vibration determination means 22 detects the P wave and the S wave, and the vibrations of the car 1 and the counterweight 3 are below the threshold values (A) and (B), that is, If it is determined that the vibration of the control device 6 is large but the risk of equipment damage is low, in step S116, the timer clearing unit 24 measures the pause time until the start of the earthquake recovery diagnosis operation. Clear the measured value. Next, in step S117, after the pause time measurement timer 23 whose measurement value is cleared by the timer clear means 24 starts measuring the elevator pause time again, the process proceeds to step S106 and the pause state measured by the pause time measurement timer 23 It is determined whether or not the continuation time has reached a preset value.

  If the determination result in step S106 is “Yes”, that is, if the continuation time of the pause state measured by the pause time measurement timer 23 has reached a preset value, in step S107, the seismometer After the return command output means 25 outputs the seismometer return command to the seismometer 8 via the I / F circuit 19, the earthquake from the seismometer return command output means 25 via the I / F circuit 15 in step S 108. The low-gull return means 18 that has received the meter return command returns the low-gull detection means 17 operated in step S101. The restored low-gull detecting means 17 outputs a seismometer return completion command to the monitoring device 7 via the I / F circuit 15.

  Next, in step S 109, the diagnostic operation start command output means 26 that has received the seismometer return completion command output from the low gall detection means 17 via the I / F circuit 19 is controlled via the I / F circuit 19. After outputting the diagnostic operation start command to the device 6, in step S110, the operation control means 13 that has received the diagnostic operation start command via the I / F circuit 12 restores the elevator from the resting state and performs the recovery diagnostic operation. Start.

  Next, in step S111, the diagnosis result determination means 27 determines whether or not recovery is possible based on the operation information of the elevator during the recovery diagnosis operation performed in step S110. If the determination result in step S111 is “No” and there is no abnormality, that is, it is determined that the recovery is possible, the process proceeds to step S112, and in this step S112, the elevator recovery command output means 28 sends the I / F circuit 19 An elevator restoration command is output to the control device 6 via When this elevator restoration command is taken into the operation control means 13 in the control device 6 via the I / F circuit 12, the operation control means 13 puts the elevator into a normal operation start state where service is possible.

  On the other hand, if the determination result in step S111 is “Yes” and there is an abnormality, that is, it is determined that recovery is impossible, the process proceeds to step S113. In this step S113, the elevator stop command output means 29 An elevator stop command is output to the control device 6 via the circuit 19. Then, when this elevator stop command is taken into the operation control means 13 via the I / F circuit 12, the operation control means 13 puts the elevator restored from the stop state in the recovery diagnosis operation (step S110) again to the stop state, This resting state is continued until an inspection is performed by maintenance personnel.

  As described above, in the earthquake recovery operation device according to this embodiment, when the aftershock occurs, the seismometer 8 installed in the building detects a predetermined vibration and is suspended due to the seismic control operation. By detecting the P wave and the S wave by the vibration detection sensor 10 attached to the control device 6, it is possible to detect an earthquake that cannot be detected by the low gull detection means 17 in the seismometer 8. Further, the vibration detection sensors 9 and 11 attached to the car 1 and the counterweight 3 detect the magnitude of vibrations of the car 1 and the counterweight 3, and the car 1 detected by the vibration detection sensors 9 and 11. When the magnitude of the vibration of the counterweight 3 is less than the judgment value (threshold values (A), (B)), the waiting time until the earthquake recovery diagnosis operation is completed by clearing the measurement value of the downtime measurement timer 23 Therefore, when the aftershock occurs, the restoration diagnosis operation can be carried out in a state where there is little possibility of failure of the elevator equipment.

  In the above embodiment, the vibration detection sensors 9 to 11 are attached to the control device 6 that is an elevator device, the car 1 and the counterweight 3, and the vibration detection sensors 9 to 11 are used to measure the magnitude of vibration of each elevator device. However, a vibration detection sensor may be attached to another elevator apparatus such as the hoisting machine 4.

DESCRIPTION OF SYMBOLS 1 Car 2 Main rope 3 Balance weight 4 Hoisting machine 5 Pulley 6 Control device 7 Monitoring device 8 Seismometer (earthquake detector)
9, 10, 11 Vibration detection sensor 12, 15, 19 I / F (interface) circuit 13 Operation control means 14 Diagnostic operation execution means 16 High-gull detection means 17 Low-gull detection means 18 Low-gull return means 20 P-wave detection means 21 S wave detection means 22 Vibration determination means 23 Rest time measurement timer 24 Timer clear means 25 Seismometer return command output means 26 Diagnostic operation start command output means 27 Diagnosis result judgment means 28 Restoration command output means 29 Elevator pause command output means

Claims (1)

For elevators that have become dormant due to seismic control operation that is activated when the seismic detector installed in the building senses vibration, restoration diagnosis operation during earthquake is performed after a predetermined period of time to determine whether restoration is possible from the dormant state In the elevator restoration diagnosis operation device for the elevator
At least a vibration detection sensor is attached to each car and the counterweight, and when the magnitude of vibration detected by the vibration detection sensor is less than a predetermined value when an aftershock occurs, the standby time until the earthquake recovery diagnosis operation is extended. In addition, when the magnitude of vibration detected by the vibration detection sensor exceeds a predetermined value, the elevator resting state is maintained during the earthquake. apparatus.

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