JP2007217167A - Elevator - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To avoid danger to a car posed by a counterweight during emergency operation of an elevator when earthquake occurs. <P>SOLUTION: When an earthquake information input part 48 of an elevator control panel 12 inputs real time earthquake information from the outside, a seismic intensity calculating part 50 calculates seismic intensity of the earthquake extending to the elevator based on this information. If the seismic intensity calculated by the seismic intensity calculating part 50 exceeds the seismic intensity decided in advance, a control part 41 stops the car at the nearest story. After the car stops, a time after opening door counting part 52 counts reference time. After the counting, the control part 41 lets the car run to an evacuation story stored in an evacuation story storage part 43 in a storage part 42 to position the counterweight below the car when a signal indicating the presence of a passenger in the car is output from a load signal inputting part 53. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to an elevator that controls a car when an earthquake occurs.

For example, as disclosed in Patent Document 1, in a conventional elevator, when an earthquake is detected while raising or lowering a car according to call registration, the car is stopped at the nearest floor and a passenger gets on the board. There is technology that allows you to evacuate from the basket.
Japanese Examined Patent Publication No. 4-62992

  However, when a rope-type elevator stops due to an earthquake, when the counterweight (balance weight) is positioned higher than the car, a part of the counterweight falls to the car due to the shaking caused by the earthquake. there's a possibility that. If passengers remain in the car, the passengers are at risk.

  Accordingly, an object of the present invention is to provide an elevator capable of avoiding a danger to a passenger car due to a counterweight during a control operation during an earthquake.

  The elevator according to the present invention detects the occurrence of an earthquake, and stops the car on the first floor when the detected earthquake is larger than a predetermined magnitude, and after this stop, the counterweight is The car is caused to travel to a predetermined second floor so that the car is positioned below.

  ADVANTAGE OF THE INVENTION According to this invention, the danger to the car by the counterweight during control operation at the time of an earthquake can be avoided.

Embodiments of the present invention will be described below with reference to the drawings.
FIG. 1 is a block diagram illustrating a configuration example of an elevator according to an embodiment of the present invention.
In this elevator, a car 5 is connected to a counterweight 6 via a sheave 2 provided on a motor shaft of the hoist 1 and a wire rope 4 wound around the deflector sheave 3. The car 5 ascends and descends in the opposite direction with the counterweight 6 as the sheave 2 and the deflecting sheave 3 are driven by the hoist 1. A car buffer 7 is provided below the car 5 in the pit, and a weight buffer 8 is provided below the counterweight 6 in the pit in the hoistway.

  In this elevator, the hoist 1 is connected to the elevator control panel 12 in the machine room 11. Further, a load detection device 13 for detecting the presence or absence of passengers in the car 5 is provided below the car 5. When the load detection device 13 detects a load in the car 5, it outputs a detection signal indicating this to the elevator control panel 12 via the tail cord 14.

  In addition, a display device 15 and an audio output device 16 for notifying passengers are provided in the car 5, and these are connected to the elevator control panel 12 via a tail cord 14.

  The car 5 is landed on any one of the top floor hall 21, the middle floor hall 22, and the bottom floor hall 23. Although only one intermediate floor 22 is shown in FIG. 1, there are actually a plurality of floors.

  Moreover, the earthquake information receiver 31 is provided in the building where the elevator is installed. The earthquake information receiving device 31 is connected to the earthquake information transmitting device 33 via the network 32. The earthquake information transmitter 33 is an external device installed outside the hoistway or outside the building.

  The earthquake information transmission device 33 has a function of transmitting, for example, real-time earthquake information when an earthquake occurs. Here, the real-time earthquake information is information such as an occurrence time, an epicenter, and a magnitude when an earthquake occurs.

  Earthquakes that propagate through the ground are divided into P waves and S waves. S-waves are rolling waves (main motion) that propagate slowly through the ground but cause earthquake damage. On the other hand, the P wave propagates through the ground at a higher speed than the S wave, but the magnitude of vibration is a pitch wave (initial movement) smaller than the S wave. The earthquake information transmitter 33 is connected to earthquake detectors (not shown) at various places. When the earthquake detector detects the arrival of the P wave, the earthquake detector transmits information indicating this to the earthquake information transmitting device 33.

  The earthquake information transmitting device 33 acquires the arrival time of the P wave detected by the earthquake detectors at various places and the data at the point where the P wave has not yet reached. The earthquake information transmission device 33 generates real-time earthquake information based on the acquired data, and transmits this to the earthquake information reception device 31.

FIG. 2 is a block diagram showing an example of the internal configuration of the elevator control panel 12 of the elevator according to the embodiment of the present invention.
The elevator control panel 12 includes a control unit 41, a storage unit 42, a car position detection unit 46, a timing unit 47, an earthquake information input unit 48, an arrival time calculation unit 49, a seismic intensity calculation unit 50, a comparison unit 51, and a time measurement after the door is opened. Unit 52, load signal input unit 53, earthquake detection unit 54, and communication interface 55, which are connected via a bus 56.

  The control unit 41 controls the entire operation of the elevator control panel 12 including the driving of the hoisting machine 1. The control unit 41 is connected to a car door control device (not shown) of the car 5 via the tail cord 14. The control unit 41 opens and closes the car door by outputting a control signal for instructing the car door control device to open and close the car door. When the car door is opened and closed, the landing door on which the car 5 is landing is also opened and closed in conjunction.

  The storage unit 42 stores a control program, elevator installation position information, notification character information, and voice information. The character information and voice information for notification are classified into earthquake notification information for notifying passengers in the car 5 when an earthquake occurs and information for guidance for getting off from the car 5. . In addition, the storage unit 42 includes a retreat floor storage unit 43, a reference seismic intensity storage unit 44, and a reference time storage unit 45.

  The car position detector 46 detects the shaft rotation of the winder 1 and generates a number of pulse signals proportional to the rotation angle. The car position detection unit 46 counts up and down of the pulse signal, and outputs the accumulated pulse number obtained as a result of the counting to the control unit 41. The controller 41 performs car position control based on the accumulated number of pulses.

  The timer 47 measures the current date and time. The earthquake information input unit 48 detects the occurrence of an earthquake by inputting real-time earthquake information received by the earthquake information receiver 31. The arrival time calculation unit 49 calculates the time when the S wave reaches the elevator in consideration of the distance from the epicenter indicated by the real-time earthquake information input by the earthquake information input unit 48.

  The seismic intensity calculation unit 50 calculates the seismic intensity of the earthquake that the S wave exerts on the elevator in consideration of the distance from the epicenter indicated by the real-time earthquake information input by the earthquake information input unit 48 and the magnitude. That is, the seismic intensity calculation unit 50 functions as a predicting unit that predicts the seismic intensity of the earthquake that reaches the elevator.

  While the load signal input unit 53 inputs a control signal indicating the load in the car 5 from the load detection device 13, the load signal input unit 53 outputs a control signal indicating this to the control unit 41. That is, the load detection device 13 functions as a determination unit that determines the presence or absence of a passenger in the car 5.

  When the earthquake detection unit 54 detects an earthquake that reaches the elevator, the earthquake detection unit 54 outputs a control signal indicating this. The communication interface 55 is connected to the display device 15 and the audio output device 16 via the tail cord 14.

  Further, the control unit 41 detects the occurrence of the earthquake while the car 5 according to the call registration is traveling, and the car 5 is selected when the magnitude of the earthquake satisfies a predetermined condition. It functions as stop control means for stopping at a predetermined first floor. In addition, after the passenger gets off while the car 5 is stopped, the control unit 41 sets the car 5 to a second floor that is set in advance so that the counterweight 6 is positioned below the car 5. It functions as a traveling control means for traveling to.

Next, the operation of the elevator having the configuration shown in FIG. 1 will be described.
FIG. 3 is a flowchart showing an example of a processing operation related to a control operation when an earthquake occurs due to an elevator of the elevator according to the embodiment of the present invention.

First, when the earthquake information receiving device 31 receives real-time earthquake information from the earthquake information transmitting device 33 (step S1), it transmits this to the earthquake information input unit 48 of the elevator control panel 12.
When the earthquake information input unit 48 receives real-time earthquake information from the earthquake information receiver 31, the earthquake information input unit 48 outputs information on the epicenter indicated by this information to the arrival time calculation unit 49.

  When the arrival time calculation unit 49 inputs the information of the epicenter from the earthquake information input unit 48, the information on the installation position (geographic information) of the elevator stored in the storage unit 42 is read, and the distance from the installation position to the epicenter Based on the above, calculate the time required for the earthquake to reach the elevator. The arrival time calculation unit 49 calculates the predicted arrival time of the earthquake to the elevator based on the required arrival time and the earthquake occurrence time indicated by the input information.

  In addition, when the earthquake information input unit 48 inputs real-time earthquake information from the earthquake information receiver 31, the information on the epicenter and magnitude indicated by this information is output to the seismic intensity calculation unit 50.

  When the seismic intensity calculation unit 50 inputs information from the earthquake information input unit 48, the information on the installation position of the elevator stored in the storage unit 42 is read, and is indicated by the distance from the installation position to the epicenter and the input information. Based on the magnitude, a predicted value of the seismic intensity of the elevator is calculated (step S2), and this information is output to the comparison unit 51.

  When the information from the seismic intensity calculation unit 50 is input, the comparison unit 51 reads information on a predetermined reference seismic intensity stored in the reference seismic intensity storage unit 44 in the storage unit 42, and from this reference seismic intensity and seismic intensity calculation unit 50. Compare the seismic intensity indicated by the information of. As a result of this comparison, when the seismic intensity indicated by the information from the seismic intensity calculation unit 50 is equal to or greater than the reference seismic intensity (for example, 200 gal), the comparison unit 51 sends a control signal indicating this to the control unit. 41 is output.

  When the control unit 41 receives the control signal from the comparison unit 51, the control unit 41 regards that an earthquake that affects the operation of the elevator arrives, reads the character information for earthquake notification from the storage unit 42, and loads it via the communication interface 55. It is displayed on the display device 15 in the car 5. Moreover, the control part 41 reads the audio | voice information for earthquake alerts from the memory | storage part 42, and displays this on the audio | voice output apparatus 16 in the car 5 via the communication interface 55 (step S4). That is, the display device 15 and the audio output device 16 function as notification means for performing notification for prompting the passenger in the car 5 to get off (evacuate) to the landing.

  Then, the control unit 41 starts the control operation during the earthquake of the car 5. Specifically, the control unit 41 controls the driving of the hoist 1 so that the car 5 stops at the nearest floor facing the current traveling direction. When the car 5 stops at the nearest floor, the control unit 41 opens a car door and a landing door (not shown) to stand by (step S5).

  And the control part 41 outputs the control signal which shows the stop of the cage | basket | car 5 at the time of an earthquake occurrence to the time measurement part 52 after door opening. When the door opening time measuring unit 52 receives a control signal from the control unit 41, the time measuring unit 47 recognizes the time counted by the time measuring unit 47. The after-door-opening time measuring unit 52 reads the reference time information stored in the reference time storage unit 45 in the storage unit 42, and the reference time has elapsed from the time recognized as described above (YES in step S6). ), A control signal indicating this is output to the control unit 41. That is, the after-door-opening time measuring unit 52 functions as a calculation unit that calculates an elapsed time after the car 5 stops when an earthquake having a reference seismic intensity or more occurs.

  When the control unit 41 receives the control signal from the door opening time measuring unit 52, the control unit 41 determines whether or not a control signal indicating that there is a passenger in the car 5 is output from the load signal input unit 53 ( Step S7).

  When the control unit 41 determines that a control signal indicating the load in the car 5 is output from the load signal input unit 53 (YES in step S7), the passenger remains in the car 5. Alternatively, it is considered that a new passenger has entered the car 5 from the landing, and the character information for exit guidance is read from the storage unit 42 and displayed on the display device 15 in the car 5 via the communication interface 55. Further, the control unit 41 reads out the voice information for exit guidance from the storage unit 42 and displays it on the voice output device 16 in the car 5 via the communication interface 55 (step S8).

  That is, the display device 15 and the audio output device 16 have the passengers in the car 5 because the door opening time after the car 5 has stopped after an earthquake having a magnitude greater than the reference seismic intensity has reached a predetermined time. In this case, it functions as an informing means for informing the user to get out of the car 5.

  When it is determined that the control signal indicating the load in the car 5 is not output from the load signal input unit 53 when the control signal is input from the time measurement unit 52 after opening the door (NO in step S7). Therefore, it is assumed that there are no passengers in the car 5, and information on the evacuation floor is read from the evacuation floor storage unit 43 in the storage unit 42. This evacuation floor is a floor where the counterweight 6 is located below the car 5 when the car 5 reaches the landing of the evacuation floor.

  After closing the landing door and the car door, the control unit 41 controls the driving of the hoisting machine 1 so as to travel to the read landing floor and land on the escape floor (step S9). When the car 5 stops at the landing on the retreat floor, the control unit 41 waits with the car door and the landing door (not shown) closed (step S10).

  In addition, the elevator control panel 12 of this elevator determines whether or not the main shock, that is, the S wave has reached the elevator when the arrival of an earthquake having a seismic intensity of a predetermined magnitude or more is predicted in the process of step S2. is doing. Specifically, when the control unit 41 inputs from the comparison unit 51 a control signal indicating that the seismic intensity indicated by the information from the seismic intensity calculation unit 50 is greater than or equal to the reference seismic intensity, the arrival prediction time calculated by the arrival time calculation unit 49 A control signal indicating an instruction to determine whether or not the S wave has reached is output to the comparison unit 51.

  When the control unit 51 receives the control signal from the control unit 41, the comparison unit 51 compares the current time measured by the time measuring unit 47 with the predicted arrival time calculated by the arrival time calculating unit 49. The comparison unit 51 outputs a control signal indicating this to the control unit 41 when the current time reaches the predicted arrival time.

  That is, the timer unit 47, the arrival time calculation unit 49, and the comparison unit 51 function as calculation means for calculating the elapsed time after the car 5 has traveled so that the counterweight 6 is positioned below the car 5. .

  When the control unit 41 receives the control signal from the comparison unit 51, the control unit 41 determines whether or not a control signal indicating the arrival of the earthquake to the elevator is output from the earthquake detection unit 54. That is, the control unit 41 functions as a determination unit that determines whether the main shock has hit the elevator.

  If the control unit 41 determines that the control signal from the earthquake detection unit 54 is not output, the control unit 41 regards that the S wave has not reached the elevator, cancels the control operation at the time of the earthquake, and rides according to the call registration. The drive of the winder 1 is controlled so that the car 5 moves up and down. That is, the control unit 41 functions as a return control means for returning to the traveling control according to the call registration of the control form of the car 5 when the main shock of the earthquake does not reach the elevator.

  As described above, in the elevator according to the embodiment of the present invention, the counterweight 6 is located below the car 5 when it is determined that an earthquake having a seismic intensity of a predetermined magnitude or more reaches the elevator. Since the car is caused to travel as described above, danger can be avoided in the car 5 due to the counterweight 6 caused by the earthquake.

  In addition, when this elevator determines that an earthquake having a seismic intensity of a predetermined magnitude or more has reached the elevator, this fact is notified to the passengers by text information, voice information, etc. The passengers can be quickly transmitted to the passengers, and the passengers can subsequently get off from the car 5 smoothly.

  In addition, this elevator determines that an earthquake having a seismic intensity of a predetermined magnitude or more has reached the elevator and stops the passenger car 5 at the nearest floor, and even if a predetermined time has elapsed, When the car stays in the car 5, the notification for prompting to get off is performed, so that safety can be improved.

  In addition, the elevator does not reach the elevator even after a predetermined time has elapsed after it has been determined that an earthquake having a seismic intensity greater than a predetermined magnitude has reached the elevator and the operation has shifted to an earthquake control operation. In such a case, since the control operation of the elevator during the earthquake is canceled, the operation mode can be quickly returned to the normal operation when the earthquake does not reach the elevator.

  In the embodiment described above, the car 5 is stopped at the nearest floor when it is determined that an earthquake having a seismic intensity of a predetermined magnitude or more reaches the elevator. However, the present invention is not limited to this. It is good also as a structure which stops in a specific floor, for example, an entrance floor.

  In the embodiment described above, when it is determined that an earthquake having a seismic intensity greater than a predetermined magnitude reaches the elevator, the car 5 is stopped at the nearest floor toward the current traveling direction, and the passenger After confirming that the car is getting off, the car 5 is moved up and down on the floor stored in the retreat floor storage unit 43 in the storage unit 42. The floor stored in the retreat floor storage unit 43 is If the car 5 is driven on the top floor landing 21 as the top floor, the counterweight 6 moves to the bottom of the hoistway. Therefore, the danger to the equipment in the hoistway by the counterweight 6 at the time of the occurrence of the earthquake can be minimized.

  The present invention is not limited to the above-described embodiment as it is, and can be embodied by modifying the constituent elements without departing from the scope of the invention in the implementation stage. Moreover, various inventions can be formed by appropriately combining a plurality of constituent elements disclosed in the embodiment. For example, some components may be omitted from all the components shown in the embodiment. Furthermore, you may combine suitably the component covering different embodiment.

The block diagram which shows the structural example of the elevator according to embodiment of this invention. The block diagram which shows the internal structural example of the elevator control panel of the elevator according to embodiment of this invention. The flowchart which shows an example of the processing operation of the control operation at the time of the earthquake occurrence by the elevator of the elevator according to embodiment of this invention.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Winding machine, 2 ... Sheave, 3 ... Warp sheave, 4 ... Wire rope, 5 ... Riding car, 6 ... Counter weight, 7 ... Car buffer, 8 ... Weight buffer, 11 ... Elevator machine room, 12 ... Elevator control panel , 13 ... Load detection device, 14 ... Tail code, 15 ... Display device, 16 ... Audio output device, 21 ... Top floor landing, 22 ... Middle floor landing, 23 ... Bottom floor landing, 31 ... Earthquake information receiving device, 32 ... Network, 33 ... Earthquake information transmitting device, 41 ... Control unit, 42 ... Storage unit, 43 ... Retreat floor storage unit, 44 ... Reference seismic intensity storage unit, 45 ... Reference time storage unit, 46 ... Car position detection unit, 47 ... Timekeeping section, 48 ... Earthquake information input section, 49 ... Arrival time calculation section, 50 ... Seismic intensity calculation section, 51 ... Comparison section, 52 ... Post-opening time measurement section, 53 ... Load signal input section, 54 ... Earthquake detection section, 55 ... Communication I Interface, 56 ... bus.

Claims (7)

Detection means for detecting the occurrence of an earthquake;
Stop control means for stopping the car on the first floor when the earthquake detected by the detection means is greater than or equal to a predetermined magnitude;
And a travel control means for causing the car to travel to a predetermined second floor so that a counterweight is positioned below the car after the car is stopped by the stop control means. An elevator characterized by.   2. The elevator according to claim 1, wherein the first floor is a nearest floor facing the traveling direction of the car.   The elevator according to claim 1, wherein the second floor is a top floor. The detection means detects the occurrence of an earthquake by receiving information indicating the epicenter of the earthquake transmitted from the outside at the time of the earthquake and the magnitude of the earthquake that occurred in the epicenter,
Predicting means for predicting the seismic intensity of the earthquake that reaches the elevator based on the information received by the detecting means,
The elevator according to claim 1, wherein the stop control means stops the car on the first floor when the seismic intensity predicted by the prediction means satisfies a predetermined condition.   The information processing apparatus according to claim 1, further comprising notification means for notifying passengers in the car when the car stops on the first floor when the stop control means stops the car. The elevator described. A discriminating means for discriminating the presence of passengers in the car;
Calculating means for calculating a door opening time after the stop control means stops the car on the first floor;
Informing means for informing a passenger to get out of the car when the judging means judges that a passenger is in the car when the door opening time calculated by the calculating means reaches a predetermined time. When,
When the determining means determines that no passenger is in the car when the door opening time calculated by the calculating means reaches a predetermined time, the counterweight is positioned below the car. The elevator according to claim 1, further comprising second traveling control means for traveling the car to a predetermined second floor. Calculating means for calculating an elapsed time after the travel control means travels the car to the second floor;
A discriminating means for discriminating whether the main shock has hit the elevator;
When the elapsed time calculated by the calculating means reaches a predetermined time, when the determining means determines that the main shock does not reach the elevator, the traveling control according to call registration of the traveling control of the car The elevator according to claim 1, further comprising a return control means for returning to the position.

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