JP2007045562A - Elevator control device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an elevator control device for reducing a restoring time for normal operation after the occurrence of earthquake. <P>SOLUTION: A control device body 1 controls the operation of an elevator in a plurality of operation modes including a normal operation mode and an earthquake operation mode. An emergency earthquake prompt report receiving device 2 and an earthquake sensor 3 are provided in a building in which the elevator is installed. The emergency earthquake prompt report receiving device 2 receives an emergency earthquake prompt report from the outside via a high speed data communication network 4. The emergency earthquake prompt report receiving device 2 analyzes the emergency earthquake prompt report and transmits it as earthquake arrival forecasting information to the control device body 1. The earthquake sensor 3 transmits information for sensed earthquake as earthquake sensing information to the control device body 1. Besides, the control device body 1 changes over the operation mode from the normal operation mode into the earthquake operation mode depending on the earth quake arrival forecasting information and the earthquake sensing information. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to an elevator control device that controls an elevator by a control operation in accordance with an emergency earthquake warning.

  In the conventional elevator seismic control operation system, the earthquake information receiving means predicts the expected arrival time of the earthquake and the predicted seismic intensity at the elevator installation location according to the real-time earthquake information, and the control operation judging means is based on the prediction result. The control mode is set to the seismic control operation mode or the operation stop mode (see, for example, Patent Document 1).

JP 2004-284758 A

  In the conventional elevator seismic control operation system as described above, when the elevator is shut down according to real-time earthquake information, the elevator is restored to normal operation after inspection of the hoistway and car by maintenance personnel. It took a long time to recover.

  The present invention has been made to solve the above-described problems, and an object of the present invention is to provide an elevator control device that can shorten the recovery time to normal operation after an earthquake occurs.

  An elevator control device according to the present invention includes a control device main body that controls operation of an elevator in a plurality of operation modes including a normal operation mode and an earthquake operation mode. The control device main body includes an emergency earthquake warning and earthquake detection. The elevator is switched from the normal operation mode to the earthquake operation mode according to at least one of the information, and the operation mode is returned from the earthquake operation mode to the normal operation mode according to the earthquake detection information.

  The elevator control device according to the present invention is configured such that the control device main body switches the operation mode of the elevator from the normal operation mode to the earthquake operation mode according to the earthquake early warning or earthquake detection information, and the earthquake operation mode according to the earthquake detection information. Since the operation mode is returned to the normal operation mode, the recovery time to the normal operation mode can be shortened after the earthquake occurs.

The best mode for carrying out the present invention will be described below with reference to the drawings.
Embodiment 1 FIG.
1 is a block diagram showing an elevator control apparatus according to Embodiment 1 of the present invention.
The control device body 1 controls the operation of the elevator in a plurality of operation modes including a normal operation mode and an earthquake operation mode. The operation mode during an earthquake is an operation mode corresponding to the shaking of an earthquake by controlling an elevator by control operation or operation stop.

  The control device main body 1 includes an earthquake information input unit 1a, an earthquake operation selection unit 1b, an earthquake operation restoration unit 1c, an earthquake information storage unit 1d, and a travel availability determination unit 1e. The earthquake information input means 1a receives earthquake detection information and earthquake arrival prediction information from the outside. The operation selection means 1b at the time of an earthquake switches an operation mode according to earthquake arrival prediction information. The earthquake operation recovery means 1c determines whether to recover from the earthquake operation mode to the normal operation mode. The earthquake information storage means 1d stores the input earthquake detection information. The travel propriety determination means 1e determines whether to stop the operation in the operation mode during an earthquake and confirms the stop location.

  The control device main body 1 is set with reference seismic intensity information, pause preparation time, and standby time. The reference seismic intensity information is information that serves as a reference for determining that the control device body 1 receives the earthquake arrival prediction information and switches the operation mode. For example, seismic intensity 4 is set in the reference seismic intensity information.

  The stop preparation time is a time used as a reference for the control device main body 1 to safely stop the traveling of the car before the main motion (S wave) is reached. For example, 10 seconds is set as the suspension preparation time. The waiting time is a predicted time until the ground shaking due to the earthquake is completely settled. For example, 60 seconds is set as the waiting time.

  Furthermore, the building where this elevator is installed is provided with the earthquake early warning receiver 2 and the earthquake detector 3. The emergency earthquake bulletin receiving device 2 includes an emergency earthquake bulletin receiving unit 2a, an earthquake information analyzing unit 2b, and an earthquake arrival prediction information transmitting unit 2c. The earthquake early warning receiving means 2a receives an emergency earthquake early warning from an emergency earthquake early warning transmitter (not shown) via the high-speed data communication network 4. The earthquake information analysis means 2b analyzes the earthquake early warning and calculates the estimated earthquake arrival time, estimated seismic intensity, etc. in the building. The earthquake arrival prediction information transmitting means 2c transmits the calculation result of the emergency earthquake warning to the plurality of control device bodies 1 as earthquake arrival prediction information.

  Further, the earthquake detector 3 detects an earthquake shake in the building and transmits it to the plurality of control device bodies 1 as earthquake detection information. The high-speed data communication network 4 is, for example, the Internet, VPN, wireless, or satellite communication, and can transmit digital data at high speed.

  Here, the earthquake early warning uses the difference in transmission speed between the P wave (initial tremor) and S wave (main movement) generated by the earthquake, and observes the P wave with high transmission speed at multiple observation points. This is information that immediately predicts the epicenter and the magnitude of the earthquake (the magnitude of the S wave).

  The earthquake early warning transmitter provided at the observation point transmits the emergency earthquake early warning via the high-speed data communication network 4, so that it is possible to cope with the earthquake shake before the arrival of the S wave. Further, since the earthquake early warning is digital data, for example, by adding the IP address of the counterpart device at the time of transmission, the route selection in the high-speed data communication network 4 is received by the router (not shown), and the counterpart device Sent to.

  Here, the control device main body 1 and the earthquake early warning receiving device 2 are each constituted by a computer (not shown) having an arithmetic processing unit (CPU), a storage unit (ROM, RAM, hard disk, etc.) and a signal input / output unit. can do. The computer storage unit of the control device main body 1 has a program for executing the functions of the earthquake information input means 1a, the earthquake operation selection means 1b, the earthquake operation recovery means 1c, the earthquake information storage means 1d, and the travel availability determination means 1e. Is stored. Further, the storage unit of the computer of the earthquake early warning receiving device 2 stores a program for executing the functions of the emergency earthquake early warning receiving unit 2a, the earthquake information analyzing unit 2b, and the earthquake arrival prediction information transmitting unit 2c.

  Next, the operation will be described. FIG. 2 is a flowchart showing the operation of FIG. First, the control device body 1 monitors whether or not earthquake arrival prediction information is received from the emergency earthquake warning reception device 2 (step ST201). And if earthquake arrival prediction information is received, the control apparatus main body 1 will acquire the estimated seismic intensity contained in earthquake arrival prediction information, and will check whether an estimated seismic intensity is more than a reference seismic intensity (step ST202).

  When the estimated seismic intensity is equal to or greater than the reference seismic intensity, the control device body 1 records the earthquake arrival prediction information (step ST203), switches the operation mode to the operation mode during earthquake, stops the car at the nearest floor, and opens the door once. Then, the door is closed and the elevator is put into operation stop (step ST204). Then, when the operation is suspended, the control device main body 1 monitors whether the earthquake detector 3 senses the shaking of the earthquake (step ST205). On the other hand, when the estimated seismic intensity is less than the reference seismic intensity, the control device body 1 monitors whether or not the seismic detector 3 senses an earthquake shake while maintaining the normal operation mode (step ST205).

  When the earthquake detector 3 senses an earthquake shake, the control device body 1 records the operation of the earthquake detector 3 (step ST206), shifts to the operation mode during earthquake, and stops the elevator operation (step). ST209). And the control apparatus main body 1 will be in a standby state until it receives inspection and manual reset of a hoistway and a cage | basket | car by a maintenance worker (step ST210).

  Furthermore, when the earthquake detector 3 does not detect the shaking of the earthquake, the control device body 1 confirms whether or not the earthquake arrival prediction information is recorded (step ST211). When the earthquake arrival prediction information is recorded, the control device body 1 performs automatic reset after the standby time has elapsed (step ST212). When the earthquake arrival prediction information is not recorded, the control device body 1 monitors whether the earthquake arrival prediction information is received as it is.

  Furthermore, when the control device main body 1 receives a manual reset by maintenance personnel or when the control device main body 1 performs an automatic reset, the control device main body 1 returns to the normal operation mode and cancels the operation stop of the elevator ( Step ST213) monitors whether or not earthquake arrival prediction information is received.

  In the elevator control device as described above, passengers can be evacuated earlier when an earthquake occurs, and the control device body 1 automatically resets according to the detection result of the earthquake detector, so that the normal operation mode is restored. Can be shortened.

  Moreover, when the earthquake arrival prediction information exceeding the reference seismic intensity is received, since the control device main body 1 records the earthquake arrival prediction information, the situation where the control device main body 1 has shifted to the operation mode during earthquake is managed. Analyzed by a person. Thereby, the reference seismic intensity is changed, an appropriate operating point is set, and the operation reliability according to the earthquake arrival prediction information can be improved.

Embodiment 2. FIG.
Next, a second embodiment of the present invention will be described. The overall configuration of the apparatus is the same as that of the first embodiment. Further, in the second embodiment, the intermediate floor of the car lifting / lowering process is set as a protection position for protecting the equipment in the hoistway.

  FIG. 3 is a flowchart showing the operation of the control device main body 1 according to the second embodiment of the present invention. First, the control device body 1 monitors whether or not earthquake arrival prediction information is received from the earthquake early warning receiving device 2 (step ST301). When the earthquake arrival prediction information is received, the control device body 1 acquires the earthquake arrival prediction time from the earthquake arrival prediction information. And the control apparatus main body 1 transfers to the operation mode at the time of an earthquake, and judges whether there exists any time difference more than a dormant preparation time from the present time to an earthquake arrival prediction time (step ST302).

  If there is a time difference equal to or greater than the stop preparation time until the earthquake arrival prediction time, it is confirmed whether or not the estimated seismic intensity is greater than or equal to the reference seismic intensity (step ST303). If the estimated seismic intensity is greater than or equal to the reference seismic intensity, it is confirmed whether or not the car can be stopped at the protected position (step ST304). When the control device main body 1 can stop at the protection position, the control device main body 1 moves the car to the protection position, stops it, and once closes the door. And the control apparatus main body 1 makes an elevator stop operation (step ST305).

  On the other hand, in the case where the time difference is less than the preparation time for the stop until the earthquake arrival prediction time, the estimated seismic intensity is less than the reference seismic intensity, or the car cannot be stopped at the protected position, the control device body 1 opens the car. The vehicle is stopped at the nearest possible floor, and once the door is opened, the door is closed, and the elevator is stopped (step ST306).

  Since the elevator control device as described above stops the car at the protection position in accordance with the earthquake arrival prediction information, it is possible to minimize damage to the equipment in the hoistway due to the shaking of the earthquake.

  In the second embodiment, the protection position is set as the intermediate floor of the car up-and-down process. However, the protection position is not limited to the intermediate floor, and any position may be used as long as the damage to the equipment in the hoistway due to the shaking of the earthquake is minimized.

Embodiment 3 FIG.
Next, a third embodiment of the present invention will be described. The overall configuration of the apparatus is the same as that of the first embodiment. Here, at the observation point of the earthquake early warning transmitter, the emergency earthquake early warning transmitter transmits the emergency earthquake early warning while immediately updating the S wave after the P wave is observed. Then, the earthquake early warning receiving device 2 updates the earthquake arrival prediction information and transmits it to the control device main body 1 according to the update of the emergency earthquake early warning.

  FIG. 4 is a flowchart showing the operation of the control device body 1 according to the third embodiment of the present invention when receiving earthquake arrival prediction information. First, the control device body 1 receives the first earthquake arrival prediction information (step ST401), and checks whether the estimated seismic intensity is equal to or greater than the reference seismic intensity (step ST402). If the seismic intensity is equal to or greater than the reference seismic intensity, the control device body 1 enters the operation mode at the time of the earthquake, stops the car at the nearest floor, once opens the door, closes the door, and stops the elevator (step ST403).

  If the seismic intensity is less than the reference seismic intensity, it is determined whether there is a time difference equal to or greater than the stop preparation time from the current time to the predicted earthquake arrival time (step ST404). If there is a time difference greater than the stop preparation time, earthquake arrival prediction information is received again (step ST401), and it is determined whether it is greater than the reference seismic intensity (step ST402). Further, when the time difference is less than the stop preparation time, the control device body 1 determines that the earthquake is a small-scale earthquake and maintains the normal operation mode.

  In the elevator control device as described above, the earthquake arrival prediction information is received and the operation is judged until the time difference between the current time and the predicted arrival time is less than the stop preparation time, so that the reliability is improved. be able to. Moreover, this makes it possible to reduce malfunctions with respect to earthquake arrival prediction information and maintain elevator operation efficiency.

Embodiment 4 FIG.
Next, a fourth embodiment of the present invention will be described. FIG. 5 is a block diagram showing an elevator control apparatus according to Embodiment 4 of the present invention. The earthquake detector 3 has a P-wave sensing means 3a, a low-gull sensing means 3b, and a high-gull sensing means 3c. The P wave sensing means 3a senses minute fluctuations of the P wave. The low-gull sensing means 3b senses small-scale S wave fluctuations. The high-gull sensing means 3c senses shaking caused by a large-scale S wave. That is, the earthquake detector 3 measures the magnitude of the earthquake shake in three stages.

  Moreover, an express zone is set in the elevator. The express zone is a zone where floors that cannot be opened are continuously present. In normal operation mode, the car passes through the express zone and does not stop. The configuration of other devices is the same as that of the first embodiment.

  In addition, first, second, and third standby times are set as the standby times registered in the control device main body 1. The first and second standby times are predictions of the time from when the earthquake detector senses an earthquake shake until the ground shake converges. For example, 60 seconds is set as the first and second standby times. Here, when a general building is subjected to long-period vibration due to an earthquake, the ground shaking may continue to shake for a while after convergence. And the 3rd waiting time is the time which estimated time until the shake by this long period vibration of a building converges. For example, 180 seconds is set as the third waiting time.

  FIG. 6 is a flowchart showing the operation of the control device body 1 of FIG. 5 when receiving earthquake arrival prediction information. First, when the earthquake arrival prediction information is received, the control device main body 1 switches to the operation mode during earthquake (step ST501) and checks the state of the car (stopped or traveling) (step ST502). When the car is stopped, the control device body 1 stores that it is stopped (step ST503), and monitors whether the seismic detector 3 senses an earthquake wave (step ST507).

  Further, when the car is traveling, the control device main body 1 stores that the car is traveling, and the car stops at the nearest floor, so that the car starts to decelerate (step ST504). Then, the control device main body 1 determines whether or not the car has stopped at the nearest floor (step ST505). If the car stops, the door is once opened and then closed, and the elevator is put into operation stop (step ST506). If the vehicle is not stopped, the car is decelerated. The control device body 1 monitors whether or not the earthquake detector 3 senses an earthquake wave. When the earthquake detector 3 senses an earthquake, the process proceeds to the next procedure (step ST507).

  Then, when the earthquake detector 3 senses the arrival of the seismic wave, the control device body 1 confirms which earthquake sensing means has been activated (steps ST508 to 510). When the high-gull sensing means 3c is activated, the control device main body 1 checks the state of the car (running or stopped) (step ST511). When the car is stopped, the control device main body 1 stands by until a manual reset is received by the maintenance staff (step ST515). When the car is traveling, the control device body 1 checks whether the car is traveling in the express zone (step ST512).

  When the car is traveling in the express zone, the controller main body 1 makes an emergency stop on the spot and stops the elevator (step ST513). And the control apparatus main body 1 waits until it receives the manual reset by a maintenance worker (step ST515). When the car is not traveling in the express zone, the control device main body 1 stops the car at the nearest floor where the door can be opened, temporarily opens the door, then closes the door, and stops the elevator (step ST514). ). When the operation is suspended, the control device main body 1 stands by until it receives a manual reset by maintenance personnel (step ST515). Then, when a manual reset is received by the maintenance staff, the control device body 1 returns to the normal operation mode and cancels the suspension of the elevator operation (step ST524).

  On the other hand, when the low-gull sensing means 3b is activated, the control device body 1 confirms the state of the car (running or stopped) (step ST516). When the car is stopped, the control device main body 1 waits until the third waiting time elapses after receiving the operation of the earthquake detector 3. That is, the control device main body 1 prepares for shaking of the building due to long-period vibration. After the third standby time has elapsed, the control device body 1 performs automatic reset (step ST517) and returns to the normal operation mode (step ST524).

  When the car is traveling, the control device main body 1 checks whether the car is traveling in the express zone (step ST518). When the car is not traveling in the express zone, the control device main body 1 stops the car at the nearest floor where the door can be opened, temporarily opens the door, then closes the door, and stops the elevator (step ST522). And the control apparatus main body 1 waits until it receives the manual reset by a maintenance worker (step ST515). Upon receiving the manual reset, the control device main body 1 returns to the normal operation mode, and cancels the suspension of the elevator operation (step ST524).

  Further, when the car is traveling in the express zone, the control device body 1 urgently stops the car on the spot (step ST519), and the first standby time has elapsed since the operation of the earthquake detector 3 was received. In the meantime, the car is made to wait on the spot (step ST520). When the first waiting time has elapsed, the control device main body 1 performs a control operation, moves the weight and the car away from each other (step ST521), stops the car to the nearest floor that can be opened, and temporarily After the door is opened, the door is closed, and the elevator is put into operation stop (step ST522). And the control apparatus main body 1 waits until it receives the manual reset by a maintenance worker (step ST515). Upon receiving the manual reset, the control device main body 1 returns to the normal operation mode, and cancels the suspension of the elevator operation (step ST524).

  Furthermore, when the P-wave sensing means 3a is activated, the control device body 1 performs automatic reset after the second standby time has elapsed (step ST523) and returns to the normal operation mode (step ST524). Here, when the magnitude of the earthquake shake sensed by the P wave sensing means 3a is less than a certain value, the control device main body 1 returns to the normal operation mode as it is (step ST524).

  In the elevator control device as described above, the control device body 1 performs different operations depending on the magnitude of the earthquake shake, and can automatically return to the normal operation mode in the case of a small-scale earthquake shake. The return time of the elevator can be shortened.

  Moreover, since the control apparatus main body 1 makes a cage stand by in preparation for the long-period vibration of a building, equipment in a hoistway can be protected.

  In the fourth embodiment, the third waiting time is set in the control device body 1 in preparation for the shaking of the building due to the long-period vibration. However, the shaking of the building due to the long-period vibration using a long-period sensor or the like is set. You may prepare. That is, a long-period sensor or the like may directly sense long-period vibration and transmit the sensing information to the control device body.

  In the first to fourth embodiments, the earthquake early warning receiver 2 is installed in the same building as the elevator, but may be installed outside the building, for example, a monitoring center that centrally manages elevators of a plurality of buildings. May be installed.

  Furthermore, in the first to fourth embodiments, the earthquake early warning receiving device 2 receives and analyzes the emergency earthquake early warning, but the control device main body may directly receive and analyze the emergency earthquake early warning.

  Further, the reference seismic intensity, the rest preparation time, and the standby time set in the control device main body 1 may be appropriately determined according to the installation state, the structure of the building, and the like, and are not limited to the above example.

It is a block diagram which shows the control apparatus of the elevator by Embodiment 1 of this invention. It is a flowchart which shows operation | movement of the control apparatus main body of FIG. It is a flowchart which shows operation | movement of the control apparatus main body by Embodiment 2 of this invention. It is a flowchart which shows the operation | movement at the time of earthquake arrival prediction information reception of the control apparatus main body by Embodiment 3 of this invention. It is a block diagram which shows the control apparatus of the elevator by Embodiment 4 of this invention. It is a flowchart which shows the operation | movement at the time of earthquake arrival prediction information reception of the control apparatus main body of FIG.

Explanation of symbols

  1 Control device body.

Claims (6)

Equipped with a control device body that controls the operation of the elevator in multiple operation modes including normal operation mode and earthquake operation mode,
The main body of the control device switches the elevator from the normal operation mode to the operation mode at the time of the earthquake according to at least one of the emergency earthquake warning and the earthquake detection information, and changes the operation mode at the time of the earthquake according to the earthquake detection information. A control device for an elevator, wherein the control unit is configured to return from the operation mode to the normal operation mode and to record the received content of at least one of emergency earthquake warning and earthquake detection information.   The elevator control device according to claim 1, wherein the control device main body stops the elevator car at a protection position for protecting the equipment in the hoistway in response to an emergency earthquake warning.   The control device body calculates a time difference between the predicted earthquake arrival time and the current time according to the emergency earthquake warning, and receives the second and subsequent emergency earthquake warnings for the same earthquake based on the calculated time difference. And switching from the normal operation mode to the earthquake operation mode in accordance with estimated seismic intensity information included in the emergency earthquake warning. Control device.   The control device body returns to the normal operation mode after elapse of a predetermined waiting time according to the content of the earthquake detection information when setting the operation mode at the time of the earthquake of the elevator. 4. The elevator control device according to any one of 3.   5. The elevator control device according to claim 4, wherein the waiting time is a time predicted until the shaking of a building that has undergone long-period vibration due to an earthquake converges.   The elevator control device according to any one of claims 1 to 5, wherein the earthquake operation mode is an operation mode in which a control operation is performed in response to an earthquake shake.

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