JP2017145084A - Elevator controller - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an elevator which makes an elevator device return to normal operation even in a state where a P-wave detection signal continues to be output due to failure of an earthquake sensor.SOLUTION: An elevator comprises an elevator device and an elevator controller to control the elevator device. The elevator controller comprises: an earthquake sensor; an earthquake control operation part which receives a P-wave detection signal from the earthquake sensor and makes the elevator device perform earthquake control operation; a failure detection part which determines failure of the earthquake sensor if no S-wave detection signal is output because the P-wave detection signal from the earthquake censor is continuously output for a predetermined period of time or longer; and a normal operation return part which makes the elevator device perform normal operation when the failure detection part determines failure of the earthquake sensor.SELECTED DRAWING: Figure 3

Description

  The present invention relates to an elevator control device including an earthquake detector.

  As background art of this technical field, there is JP 2013-216456 A (Patent Document 1). In this publication, when an electronic PS wave detector recovers from a power failure without detecting an earthquake, it is determined whether or not the PS wave detector is in a driving state by the power of the battery during the power failure. A judgment unit, a driving command output unit that outputs a diagnostic driving command when it is determined that the PS wave detector is not in a driving state during a power failure, and a diagnostic driving is executed by the diagnostic driving command to check whether there is an abnormality. In addition, there is described an elevator control device including an operation control unit that resumes normal operation when there is no abnormality and stops operation when there is an abnormality.

JP 2013-216456 A

  However, since the elevator control apparatus described in Patent Document 1 was not assumed for the case where the earthquake detector failed, the P-wave detection signal is still output due to the failure or power loss of the earthquake detector. When this happens, the operation of the elevator apparatus is unnecessarily continued, which causes inconvenience to the user.

  SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide an elevator control device capable of returning an elevator device to a normal operation even when a seismic detector is in a state where a P-wave detection signal remains output due to a failure or power loss. Is to provide.

  In order to solve the above-described problem, the present invention is an elevator including an elevator device and an elevator control device that controls the elevator device, the elevator control device including an earthquake detector and a P-wave detection signal from the earthquake detector. Seismic control operation unit that causes the elevator device to perform seismic control operation, and if the P wave detection signal from the seismic detector is output continuously for a certain period of time and the S wave detection signal is not output, the seismic sensor malfunctions And a normal operation return unit that causes the elevator apparatus to perform normal operation when the failure detection unit determines that the earthquake detector has failed.

  According to the elevator of the present invention, the elevator apparatus can be returned to the normal operation even if the earthquake detector is in a state where the P-wave detection signal is still output due to a failure. Problems, configurations, and effects other than those described above will be clarified by the following description of embodiments.

It is a block block diagram of the elevator system by one Example of this invention. It is a block block diagram which shows the more concrete structure of the elevator control apparatus shown in FIG. It is a flowchart which shows the processing operation at the time of the earthquake occurrence of the elevator control apparatus shown in FIG.

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

  FIG. 1 is a block diagram of an elevator system according to an embodiment of the present invention. The elevator device 14 includes a car, a hoisting machine, a rope, a counterweight, and the like, and is connected to the elevator control device 1. In this specification, a combination of the elevator device 14 and the elevator control device 1 is referred to as an elevator 15. The elevator may include a plurality of elevator devices and an elevator control device. In the vicinity of the building including the elevator 15, there is an adjacent building provided with the elevator 16 including the elevator control device 2 and the elevator 17 including the elevator control device 3. The elevator control device 1 includes an earthquake detector 4A, an elevator control panel 5A that captures detection signals from the earthquake sensor 4A, and a monitoring device 6A that captures various signals from the elevator control panel 5A and performs abnormality monitoring and the like. Have.

  The elevator control devices 2 and 3 configured in other adjacent buildings have the same configuration, and the earthquake detectors 4B and 4C, the elevator control panels 5B and 5C that take in the detection signals from the earthquake detectors 4B and 4C, and the elevator And monitoring devices 6B and 6C that take in signals from the control panels 5B and 5C and perform abnormality monitoring and the like.

  Each of these monitoring devices 6A to 6C is connected to the control center 8 through the communication line 7, and a remote monitoring device is configured to notify the control center 8 when an abnormality is detected. Although referred to as the control center 8 here, it is not always necessary to be a center, and may be a server that collects and transmits information of a plurality of monitoring devices. In this specification, a combination of an elevator and a control center is referred to as an elevator system.

  FIG. 2 is a block configuration diagram showing a more specific configuration of the above-described elevator control panel 5A. Since the elevator control panels 5A to 5C in the elevator control devices 1 to 3 in each building have the same configuration, the elevator control panel 5A will be described as a representative here. In addition to the normal configuration, the elevator control panel 5A includes a failure detection unit 9A that detects a failure of the earthquake detector 4A with respect to the P-wave detection signal from the earthquake detector 4A, and the failure detection unit 9A includes the earthquake detector 4A. A failure detection notification unit 10A for notifying the control center 8 of a failure detection signal when a failure is detected, and returning the elevator device 14 to normal operation after notifying the failure detection signal from the failure detection notification unit 10A to the control center 8 A normal operation return unit 11A to be activated, and an earthquake determination unit 12A to determine that an earthquake has occurred when an S wave signal is detected following the P wave signal from the earthquake detector 4A, or when an earthquake occurrence signal is received from the control center 8. When the earthquake determination unit 12A determines that an earthquake has occurred, the earthquake control operation unit 13A stops operation thereafter.

  FIG. 3 is a flowchart showing a processing operation of the elevator control device 1 described above when an earthquake occurs.

  The failure detection unit 9A of the elevator control panel 5A constantly monitors the P wave detection signal from the earthquake detector 4A in step S1. When the P wave detection signal is received in step S14, the earthquake control operation unit 13A causes the elevator apparatus 14 to perform the earthquake control operation. Further, the failure detection unit 9A monitors the S wave signal to be subsequently detected from the earthquake detector 4A in step S2.

  When the S wave signal is detected in the determination in step S2, the earthquake determination unit 12A determines that an earthquake has occurred in step S3. Next, the earthquake control operation unit 13A stops the operation of the elevator apparatus in step S5, and notifies the control center 8 of an elevator stop signal due to the earthquake from the monitoring apparatus 6A.

  When the S wave signal is not detected in the determination of step S2, the failure detection unit 9A monitors the elapse of the predetermined time set in advance in step S6, and the S wave signal is not detected even after the elapse of the predetermined time. In step S7, the failure detection unit 9A performs failure determination processing of the earthquake detector 4A and determines that there is a failure.

  Thus, the failure detection unit 9A receives the P detection wave signal, receives no S wave detection signal, and continues to detect the P wave detection signal for a certain time or more. Is determined. In an actual earthquake, since the P wave does not continue for more than 1 minute, for example, the P wave detection signal continues without receiving the S wave detection signal for a certain time exceeding 1 minute. In this case, it is determined that the earthquake detector 4A is out of order. Of course, in such a case, there is no problem even if the elevator apparatus is automatically returned to the normal operation because the earthquake detector 4A is out of order and no actual earthquake has occurred.

  Further, the failure detection notification unit 10A issues a failure signal of the earthquake detector 4A to the control center 8 via the monitoring device 6A in step S8. In addition, the normal operation return unit 11A returns the elevator device 14 to the normal operation in step S9 and restarts the operation.

  Thereafter, the earthquake determination unit 12A monitors an earthquake occurrence signal from the control center 8 in step S10. Here, since the failure of the earthquake detector 4A is detected in the elevator control panel 5A, the elevator apparatus 14 is not allowed to perform the earthquake control operation even if the P wave detection signal is received. Further, an elevator stop signal due to an earthquake is not issued to the control center 8 through the monitoring device 6A.

  When an earthquake actually occurs, the normal earthquake detectors 4B and 4C detect the P-wave signal in the elevator control devices 2 and 3 in the adjacent buildings, and subsequently detect the S-wave signal, thereby controlling the elevator. The earthquake determination unit 12 of the panels 5B and 5C determines that an earthquake has occurred. Thereafter, the elevator control devices 2 and 3 in the adjacent buildings stop the operation after performing the earthquake control operation, and transmit a stop signal of the elevator device due to the earthquake to the control center 8.

  For this reason, the control center 8 uses the stop signal received from the elevator control devices 5B and 5C having the normal earthquake detectors 4B and 4C to search for neighboring information in an area that has been divided in advance. As a result of the search, in step S8, the elevator 15 receiving the failure signal of the earthquake detector 4A installed in the vicinity is detected, and an earthquake occurrence signal is transmitted to the monitoring device 6A of the elevator control device 1.

  In another embodiment, the control center 8 obtains an earthquake early warning and confirms the occurrence of the earthquake regardless of the stop signal of the elevator device due to the earthquake, and the failure signal of the earthquake detector in the earthquake occurrence area divided in advance. Search for elevator devices that are receiving. As a result, the elevator control device 1 that has received the failure signal of the earthquake detector 4 </ b> A is extracted, and an earthquake occurrence signal is transmitted to the elevator control device 1.

  In any case, when the earthquake determination unit 12A of the elevator control panel 5A that has been monitoring the earthquake occurrence signal from the control center 8 in step S10 receives the earthquake occurrence signal from the control center 8, the earthquake determination unit 12A The control operation unit 13A causes the elevator apparatus 14 to perform seismic control operation. In step S3, an earthquake occurrence signal from the control center 8 is preferentially determined to be an earthquake occurrence. The earthquake control operation unit 13A stops the operation of the elevator apparatus 14 in step S5.

  According to such an elevator, it is possible to use an electronic seismic detector that uses a P-wave signal in a normal ON state in order to detect the disappearance of the sensor power supply. Moreover, if the P wave signal is continuously output for a certain time and there is no S wave signal, it can be determined that the earthquake detector 4 is not an earthquake but a failure of the earthquake detector 4, so the signal of the earthquake detector 4 A is continuing. However, the elevator apparatus can resume from seismic control operation to normal operation. At this time, since it is possible to detect that the earthquake sensor 4 is out of order, it is possible to avoid that all elevator devices connected to the faulty earthquake sensor 4 are stopped due to the occurrence of an earthquake. The elevator device can be used as usual.

  Since there is a possibility that an earthquake will occur even during the occurrence of an abnormality in the earthquake detector 4, if a failure of the earthquake detector 4A is detected, an external report is sent from the control center 8 to an administrator (maintenance company) in step S8. By performing the above, it is possible to promptly replace or repair the failed earthquake detector 4. In this way, it is possible to prevent a secondary disaster caused by the occurrence of an earthquake during the failure of the earthquake detector 4.

  Further, when an earthquake occurs before the failed earthquake detector 4A is replaced, an earthquake is transmitted from the elevator control devices 2 and 3 in the surrounding area to the control center 8 as described in step S10. An earthquake occurrence signal can be transmitted from the control center to the elevator apparatus 1 by using a signal or obtaining an earthquake early warning. Such a series of processes can be performed not only when the earthquake detector 4A fails but also when the earthquake detectors 4B and 4C in other elevator control devices 2 and 3 fail.

  As described above, the elevator control device according to the present invention disables the earthquake determination in the earthquake determination unit 12 when the P wave signal from the earthquake detector 4A is continuously output for a predetermined time and there is no S wave signal. A failure detection unit 9 that determines that the sensor 4A has failed and a normal operation return unit 11 that returns the elevator apparatus to normal operation when the failure detection unit 9 determines that the earthquake detector 4A has failed are provided.

  According to such a configuration, if the P-wave signal is continuously output for a certain time or more and there is no S-wave signal, it can be determined that the earthquake detector 4A is not an earthquake but a failure of the earthquake detector 4A. Even during the continuation, the elevator apparatus can resume normal operation.

  In addition to the above-described configuration, a failure detection notification unit 10 that transmits a failure signal to the control center 8 when the failure detection unit 9 determines that the earthquake detector 4A has failed is provided, and the earthquake determination unit 12 includes the control center 8 When an earthquake occurrence signal is received from, it is determined that an earthquake has occurred.

  According to such a configuration, even if an earthquake occurs during the failure of the earthquake detector 4A, it is determined that an earthquake has occurred from the control center 8 based on the earthquake occurrence signal, and the elevator apparatus can be stopped after the earthquake control operation. Therefore, it is possible to prevent a secondary disaster caused by the occurrence of an earthquake during the failure of the earthquake detector 4A.

  In addition, this invention is not limited to the Example mentioned above, Various modifications are included. For example, the above-described embodiments have been described in detail for easy understanding of the present invention, and are not necessarily limited to those having all the configurations described.

1 Elevator control device 4A Earthquake detector 14 Elevator device 15 Elevator

Claims (6)

An elevator comprising an elevator device and an elevator control device for controlling the elevator device,
The elevator control device includes an earthquake detector, a seismic control operation unit that receives the P-wave detection signal from the earthquake detector and causes the elevator device to perform seismic control operation,
When the P-wave detection signal from the seismic detector is continuously output for a predetermined time or more and the S-wave detection signal is not output, a failure detection unit that determines that the earthquake detector is faulty, and the failure detection unit is configured to detect the earthquake An elevator comprising: a normal operation return unit that causes the elevator apparatus to perform normal operation when it is determined that a failure has occurred. The elevator according to claim 1,
The elevator control unit includes an earthquake determination unit that determines that an earthquake has occurred when an S-wave detection signal is received from the earthquake detector, and the earthquake control operation unit is configured such that when the earthquake determination unit detects an earthquake occurrence, An elevator characterized in that after the earthquake control operation of the elevator apparatus is completed, the operation of the elevator apparatus is stopped. The elevator according to claim 2, connected to a control center,
The elevator characterized in that the earthquake determination unit determines that an earthquake has occurred when an earthquake occurrence signal is received from the control center. The elevator according to claim 3,
A monitoring device that transmits a signal to stop the operation of the elevator device due to an earthquake to the control center, and a failure detection notification unit that transmits a failure signal to the control center when the failure detector determines that the earthquake detector has failed. An elevator characterized by further comprising.   An elevator system comprising a plurality of elevators according to claim 4 and the control center. The elevator system according to claim 5,
The control center is a case where a failure signal of the earthquake detector is received from an elevator among the plurality of elevators, and another elevator in the vicinity of the elevator that has transmitted the failure signal among the plurality of elevators. An elevator system characterized by transmitting an earthquake occurrence signal to an elevator that has transmitted the failure signal when a signal for stopping the operation of the elevator device due to an earthquake is received from the elevator.

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