JP2007320685A - Elevator device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an elevator device capable of performing operation for emergency by sensing an oscillation of an earthquake or the like with high accuracy. <P>SOLUTION: In the elevator device in which a sensor for detecting the acceleration or the velocity is installed within a hoistway 11 or a building 13 with the hoistway 11 formed therein, and the operation for emergency is performed by using the result of detection of the sensor, the acceleration or the velocity in the horizontal direction and the vertical direction is detected by the sensor; seismic signals in the horizontal direction and the vertical direction are detected by using the acceleration or the velocity in each direction; each detection signal is sequentially synthesized and calculated without classifying the horizontal direction and the vertical direction of each detection signal; and when the synthesized value is larger than the predetermined threshold, the operation for emergency during an earthquake is performed. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to an elevator apparatus that performs control operation when a building is shaken by an earthquake or a strong wind.

  During an earthquake, a longitudinal wave (P wave) with a fast propagation speed and a transverse wave (S wave) with a slow propagation speed but exhibiting the main motion of the earthquake reach the building. Conventionally, a control operation for detecting an initial shaking of a building due to a P wave before the arrival of the S wave and stopping the elevator has been performed. The details are shown, for example, in Non-Patent Document 1 below.

  According to this Non-Patent Document 1, a horizontal acceleration sensor installed at the top of a building senses a predetermined acceleration (extra low level), or detects a P wave at the lower part of a hoistway or a floor near the foundation of the building. An elevator is installed, and the elevator's control operation is performed by detecting the vertical ground motion using the longitudinal propagation characteristics of the P wave.

  Further, in Patent Document 1 below, if an earthquake P wave is detected by a sensor installed near the first floor of the hoistway, the elevator is stopped when the acceleration in the z (vertical) direction exceeds a predetermined value.

JP-A-10-67475 (FIG. 6, paragraph number 0009, etc.) 94th to 100th pages of the 2nd part of "Explanation of Elevator Technical Standards" edited by the 2002 edition Ministry of Land, Infrastructure, Transport and Tourism Housing Bureau Building Guidance Division, Japan Building Equipment and Elevator Center, Japan Elevator Association

  In the P-wave detection of seismic motion, the P-wave is caused by the longitudinal wave of the propagation of seismic motion, and the z (up and down) direction is the main component on the ground surface, so the control operation is performed using a sensor in the z direction.

  For example, although the above-mentioned Patent Document 1 describes detecting acceleration in the three-axis direction, the z-direction is divided, the combined acceleration in the x and y directions is obtained, and the device is compared with past data. However, it is assumed that the initial shake of the building due to the earthquake is detected and whether or not the elevator is stopped is determined by acceleration in the z direction.

  The P wave of seismic motion is a longitudinal wave propagation and the z direction is the main component. However, since the acceleration when the P wave arrives is small at a place away from the epicenter, only the acceleration in the z direction is compared with a predetermined value. May not be able to detect the arrival of an earthquake. There is also a method to increase the detection sensitivity by reducing the acceleration threshold of the initial shaking judgment by P wave, but in that case, it reacts to the noise of the P wave of the near field epicenter and the traffic equipment around the building where the magnitude of the earthquake is small. There arises a problem that the elevator control operation frequently occurs unnecessarily.

  An object of the present invention is to provide an elevator apparatus capable of accurately sensing the initial shake of a building during an earthquake and controlling it before the shake of the building related to the occurrence of damage to the elevator occurs regardless of the location of the epicenter. Is to provide.

  In order to achieve the above object, the present invention provides an elevator apparatus in which an acceleration sensor is installed in a hoistway or a building where the hoistway is formed, and a control operation is performed using a detection signal of the sensor. The vertical vibration at the time of an earthquake is installed at the top of the building by installing a vertical acceleration sensor on the top of the building based on the vibration characteristics that amplify as you go up the building. Incorporating means for sensing without overlooking, detecting the horizontal and vertical acceleration of the upper part of the building, and combining and calculating in real time sequentially in the time domain without dividing the horizontal and vertical direction of the detection signal, respectively The initial swing control operation was performed with this composite value.

  Here, control operation means that in the event of an earthquake or wind, before reaching the building shake that could cause damage to the elevator, it detects the initial shake of the building and stops the elevator on the nearest floor. It refers to an operation mode in which passengers are evacuated and the elevator is stopped after that. Judgment of resumption of operation during rest operation is made based on the magnitude of the building acceleration due to earthquake or wind.

  In addition to shaking due to strong earthquake motion, the building can be shaken by long-period shaking in which long objects such as ropes and cables in the hoistway are shaken by long-period ground motion with small acceleration that is difficult for humans to feel, or typhoons. There are cases where the building shakes due to strong winds, etc., and these shakes may cause elevator damage. The initial shaking of these buildings is detected, and when the detected level exceeds a predetermined threshold, the elevator is stopped by the control operation. Here, these control operations will be referred to as “initial swing control operation or simply initial swing control” without distinguishing the way of shaking caused by an earthquake or wind.

  In addition, the resumption of operation during suspension after the initial shake control is determined based on the magnitude of the building shake after the initial shake detection. It will be called “control operation, or simply swing control”.

  ADVANTAGE OF THE INVENTION According to this invention, the elevator apparatus which can detect the shake of the building by an earthquake etc. in the initial shake stage more sensitively, and can perform control operation can be provided.

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

FIG. 1 is a configuration diagram showing an outline of an elevator in an embodiment of the present invention. In the elevator apparatus of the present embodiment, the car 1 is moved up and down along a guide rail (not shown), while the counterweight 2 is moved up and down along a guide rail (not shown). Further, the car 1 and the counterweight 2 are suspended by the main rope 6 and driven by the hoisting machine 4. Here, since the hoisting machine 4 is generally large in an elevator installed in a high-rise building, the machine room 10 is provided on the hoistway 11, and the hoisting machine 4 is installed therein. In the machine room 10, a control panel 3, a governor 5 and an earthquake detector 9 are arranged, and a governor rope 7 is wound around the governor 5. Furthermore, in order to reduce the weight difference between the main rope 6 on the side of the car 1 and the main rope 6 on the side of the counterweight 2 which is caused by the change in the position of the car 1 and the counterweight 2, a compen- sion rope 8 is installed. .

  Next, the earthquake detector 9 and the control operation at the time of an earthquake using the earthquake detector 9 will be described. First, the earthquake detector 9 in this embodiment has an acceleration sensor (detection unit) that detects acceleration in three directions of x, y, and z orthogonal to each other. A combination of three single-axis sensors may be used.

  The time domain data of the x, y, and z components of the acceleration detected by the detection unit is sent to the calculation unit in the same seismic detector 9. In this calculation unit, in the sequential time domain, the square value of each component is added and the square root is obtained, and the initial shake control operation is performed using this composite value (synthetic acceleration value) signal as the initial shake determination signal.

  Further, the seismic detector 9 may not be provided with a calculation unit for the composite signal calculation process. In this case, the control panel 3 performs the calculation. Here, even if the acceleration sensor is changed to a speed sensor, a means for determining the arrival of the initial shaking of the ground motion in the building can be provided.

  When an acceleration sensor is used, the acceleration detection signal in the vertical direction includes a gravitational acceleration component of 980 Gal that is larger than the magnitude of the initial shaking of the ground motion (several Gal to several 10 Gal). For this reason, when performing the composite calculation of x, y, z, in order to ensure the threshold determination accuracy, at least up and down so that the gravitational acceleration component and the DC drift component of the acceleration sensor main body do not enter the composite calculation value. A high-pass filter is applied to the acceleration detection signal in the direction to remove the direct current component, and the signal is sent to the arithmetic unit.

In order to eliminate the gravitational acceleration component caused by the horizontal installation error of the acceleration sensor and the DC drift component of the acceleration sensor main body, a high-pass filter may be applied to the acceleration detection signal in the horizontal direction as in the vertical direction. The pass frequency F _h (Hz) of the high-pass filter is set lower than the natural frequency of the building where the elevator is installed, and has a characteristic that does not affect the detection of the shaking of the building.

Next, the effect of the present embodiment will be described with reference to FIGS. Figures 2 to 7 show examples of acceleration observation waveforms assuming that the location of the building where the elevator is installed is close to the epicenter. << North-western Chiba earthquake on July 23, 2005 on the K-NET observation network. Fig. 8 to Fig. 13 are examples of acceleration observation waveforms assuming that the building position is far from the epicenter of the observation point CHB009 (Chiba City) in the year 2004 on the K-NET observation network. The observation waveforms at the observation point TKY007 (Shinjuku) in the Niigata Chuetsu earthquake on March 23 are shown respectively. 2 to 13 are observation values on the ground, and the magnitude of acceleration when measured in the machine room 10 is amplified in the building 13 by increasing both horizontal and vertical vibrations. The effect of the present invention is substantially the same even when viewed as an observed wave. Therefore, in the present embodiment, FIGS. 2 to 13 are described as accelerations measured by the earthquake detector 9 in the machine room 10.

  The case where the epicenter is near will be described with reference to FIGS. 2 and 3 are the x and y directions in the horizontal direction, and FIG. 4 is the acceleration observation waveform in the z (vertical) direction. The P wave is the acceleration in the vicinity of 0 (s) to 9 (s), and the component in the z direction. However, it is understood that the value is larger than the other components in the x and y directions. That is, it can be seen that in the place near the epicenter, the initial shaking caused by the P wave is mainly a vertical shaking. Therefore, regarding the initial shake due to the earthquake that occurred nearby, the absolute value of only the acceleration in the z direction (Fig. 5) and the square value of each component in the x, y, and z directions of the acceleration were added together to find the square root. The combined value (FIG. 6) obtained by adding the absolute values of the respective components in the x, y, and z directions of acceleration (FIG. 6) is also greatly different from the absolute value of the acceleration only in the z direction of FIG. Absent. For this reason, even if only the acceleration in the z direction is compared with the threshold value, if the earthquake occurs in the vicinity, the initial shaking can be detected.

  Next, the case where the epicenter is far (about 200 km) will be described with reference to FIGS. 8 and 9 are horizontal x and y directions, respectively, and Fig. 10 is the z (vertical) direction acceleration observation waveform, explaining the characteristics of the long-distance seismic ground motion observed in the Kanto plain consisting of sedimentary layers. The effect of implementing the present invention in such a long-distance earthquake motion will be described.

  From the observed waves in FIGS. 8, 9, and 10, the P wave lasts about 23 (s), and then the S wave arrives. The acceleration at the time of S wave arrival is about 10 Gal in the x and y directions and about 3 to 4 Gal in the z direction. If the epicenter is far away, the P wave will be attenuated. Is difficult unless the threshold value is lowered. If the threshold value is lowered, troubles may occur in which the control control during earthquakes malfunctions due to noise other than earthquakes.

However, because the vertical wave propagation of the P wave from the far epicenter also causes horizontal (horizontal) vibrations on the surface layer, the acceleration in the x direction in FIG. 8 and the acceleration in the y direction in FIG. The initial fluctuation component caused by the P wave of the same level as the 10 z-direction components is included. In addition, as seen in the vicinity of 85 to 100 (s) in the y direction in FIG. 9, long-period ground motions have a long period in a plain portion composed of a sedimentary layer such as the Kanto Plain (period in FIG. 9 is about 5 to 6 seconds). It is easy to grow, and high-rise buildings exhibit seismic motion that tends to resonate. For this reason, even if the acceleration level of the S wave is small, it is easy to cause damage such as the main rope or the like swinging due to the shaking of the building due to long-period ground motion.

  Therefore, in the present invention, the x and y components of the acceleration are also used for the determination of the initial shake, and the initial shake determination in this embodiment will be described.

As a building arrival determination signal at the initial stage of an earthquake of a building, the square value of the component in each direction can be obtained without dividing the x, y, and z directions of acceleration with respect to the absolute value characteristic of acceleration in only the z direction (Fig. 11). A composite value obtained by sequentially calculating the square root of the added signal in the time domain (FIG. 12), or a composite value obtained by adding the absolute values of the respective components in the x, y, and z directions of the acceleration sequentially in the time domain (FIG. 13). In the time zone 0 (s) to 23 (s) of the P wave, it is about 2 Gal in FIG. 11 only in the z direction, but 3 Gal in FIG. 12 where it is determined by the combined signal in the x, y, z directions. In FIG. 13, it becomes about 5 to 6 Gal, and the sensitivity of detecting the initial shaking is improved. Here, although the sensitivity of the initial vibration detection is improved, even if the absolute sum in the x, y and z directions is combined as shown in FIG. However, because the epicenter is far away, even if the S wave arrives, the elevator will not reach an acceleration that will cause damage, and long-period ground motion has not yet grown. Therefore, when attention is paid to the composite signal of the x, y, and z direction components of the present embodiment at the time of arrival of the S wave, it reaches 6 to 10 Gal at the time of arrival of the S wave. The elevator can be stopped before the building is shaken by periodic earthquake motion, and the function of earthquake control can be demonstrated.

  As described above, in this embodiment, the elevator can be accurately stopped before the long-period ground motion grows even if the ground motion has an epicenter at a long distance.

  As for the combined signal of the x, y, and z direction components shown in this embodiment, as shown by the following equation, a combined value obtained by adding a predetermined coefficient to the absolute value of each component (Equation 1 ), A combined value obtained by multiplying the square value of each component by a predetermined coefficient (Equation 2), a combined value obtained by taking the square root (Equation 3), or the absolute value of each component to the p-th power A sum obtained by adding the coefficients and a composite value (Equation 4) in calculating the p-th root of the sum may be calculated and compared with a threshold value.

  Here, the influence of noise can also be suppressed by introducing weighting coefficients α, β, and γ into the observed values from the characteristics of the acceleration noise due to the installation environment of the building and the equipment in the building. Furthermore, the coefficient α and the coefficient β may be weighted to different values depending on the shape of the horizontal section of the building 13. For example, in the case of the building 13 having a horizontal section that is sufficiently longer in the x direction than in the y direction, the building 13 is less likely to sway in the x direction, and therefore, it is preferable to add a weight.

  In this embodiment, by combining the acceleration of each component of x, y, and z, the sensitivity of detecting the initial shake can be further increased, and even if the earthquake occurs in the distance, the control operation does not operate. It is possible to prevent the operation from being delayed, and as a result, it is possible to suppress damage such as the main rope 6 swinging and the elevator traveling while contacting the equipment in the hoistway 11.

  As described above, according to this embodiment, not only the acceleration in the vertical direction (z direction) component but also the acceleration in the horizontal direction (x, y direction) component is used for the determination of the initial shake, so that the epicenter is far away. Before long-period ground motion in the plain (see around 85 to 100 (s) in Fig. 9) grows, it can be detected at the initial shaking stage, and control operation can be started at an early stage from the occurrence of the earthquake. . That is, according to the present embodiment, it is possible to perform a control operation in which the elevator is stopped by sensing at the initial shaking stage of the ground motion before the main motion due to the S wave arrives or before the long-period ground motion grows.

  In the present embodiment, the earthquake detector 9 is provided in the machine room 10 of FIG. 1, but not only in the machine room 10, but in the case of an elevator without the machine room 10, as shown in FIG. You may install in the upper part of the hoistway 11 which is upper part. In any case, since the seismic detector 9 is installed above the building 13 where the vibration caused by the earthquake is amplified, it is more accurate than the case where the seismic detector 9 is installed in the base of the conventional building 13 or the pit 12 of the hoistway 11. Control operation becomes possible.

  Further, in this embodiment, since the initial shake due to the earthquake motion can be determined by the earthquake detector 9 in the machine room 10, the lower part of the hoistway 11 or the lower part of the building 13 shown in Non-Patent Document 1 or Patent Document 1 is used. Maintainability is improved compared to the case of installing an earthquake detector.

  Furthermore, in the conventional method in which a P-wave sensor is installed in the lower part of the hoistway 11 or the lower part of the building 13, a malfunction that the elevator stops carelessly due to acceleration vibration of a traffic device or the like cannot be avoided. Because the effect of the invention can be exerted simply by installing the earthquake detector 9 at the top of the building, the control system during earthquakes is a noise of traffic equipment (these noises are mainly surface waves of ground motion, It does not propagate throughout the building.

  If noise other than the movement of people in the upper part of the building and the earthquake motion of the building equipment including the elevator equipment is unavoidable, the first seismic detection installed on the upper part of the hoistway 11 or the upper part of the building 13. A second seismic detector is provided at the other part of the hoistway 11 and the building 13 and the vibration noise of the building at the first building part and the second building part is hardly generated at the same time. Taking advantage of this characteristic, control operation may be performed only when both the first and second detectors detect the initial shaking of the building within a predetermined time during an earthquake. . For example, if an initial shake is detected in the second seismic detector within 0.1 seconds after the first seismic detector detects the initial shake, the control operation is performed and the time exceeds 0.1 second. If there is a time difference, it can be regarded as not an earthquake. In this way, if the initial shake of the building at the time of an earthquake is captured by the detection logical sum of both sensors, the threshold of shake detection can be lowered without being affected by noise, and the initial shake will not be lost. . Here, the first and second seismic detectors may be configured with three axes in the x, y, and z directions, similar to the seismic sensor 9, or a building that amplifies the shaking at the time of the vertical earthquake in the building. The first and second seismic detectors can detect at least the acceleration in the z direction.

  Next, the application of the embodiment of the present invention to the vibration control of a building by the S wave of the main motion will be described. Conventionally, shake control operation is performed with a composite signal of x and y components, but since the z component is not included in the composite signal for determination, it cannot be used for determination of initial shake control. On the other hand, since the composite signal from the calculation unit of the seismic detector 9 in this embodiment includes seismic motion components in the x, y, and z directions, the seismic detector 9 after the initial shaking is sensed. The composite signal from the calculation unit can be used as a determination signal for vibration control by S waves. For this reason, it is not necessary to provide a separate horizontal omnidirectional acceleration sensor for swing control (S wave control) shown in Non-Patent Document 1. That is, the combined signal from the calculation unit of the earthquake detector 9 after the initial shake control can be used as a signal for determination of S wave control shown in Non-Patent Document 1.

  According to the present embodiment, the initial shake detection sensitivity at the time of an earthquake is improved, so that the earthquake motion that does not cause earthquake damage to the elevator may be detected. Therefore, if the vibration control has not yet been reached even after a predetermined time after the initial vibration control, an initial vibration control end signal is given to the control panel 3 and the control operation for quickly restoring the elevator to the normal operation is taken in. Good.

  Or after the initial shake control, only when the initial shake determination signal level of the seismic detector is equal to or lower than the predetermined earthquake end determination threshold after a predetermined time, and the elevator has not yet reached shake control operation. It is advisable to generate an initial shake control end signal and restore from the earthquake control.

  However, it cannot be restored while the elevator is under vibration control due to long mains such as a separate main rope or strong wind such as a typhoon, or during earthquake disaster control in the building location.

  In addition, although the above-mentioned Example demonstrated the shaking of the building at the time of an earthquake, the building 13 shakes with strong winds, such as a typhoon other than an earthquake. Therefore, based on the example of the initial shake detection system at the time of the earthquake in this embodiment (Fig. 15), it is determined whether the cause of the building shake is earthquake or strong wind when the elevator enters the initial shake control operation. An example will be described with reference to FIG.

In FIG. 15, the detection signal of each acceleration in the x, y, and z directions of the seismic sensor 14 installed on the upper part of the hoistway 11, the acceleration component of gravity and the DC drift component of the acceleration sensor, for example, 0.1 Hz are removed. Control unit 21 that synthesizes signals 18, 19, and 20 that have passed through high-pass filters 15, 16, and 17 with a pass frequency F _h , and control when the output signal of the calculation unit 21 exceeds a threshold value in a building shake threshold value determination unit 22 The control signal is sent to the panel 3 and the elevator starts the initial swing control operation. In an early shake detection system for such a building during an earthquake, the z-direction signal 20 shows an acceleration of several Gal or more when the building shake is an earthquake, but if the building shake is caused by wind, Fluctuation in the up and down direction related to the shaking is not observed. Thus, when the elevator enters the control operation due to the shaking of the building and the signal 20 is included in the signal 20 by the earthquake / wind judgment unit 23, the building shaking factor is “earthquake”, and the signal is If it is not included, it can be determined as “wind” and the information can be conveyed to the passengers.

It is a block diagram which shows the outline of the elevator in the Example of this invention. It is a figure which shows the x direction component of the acceleration detected with the earthquake detector in the place where the distance from an epicenter is near. It is a figure which shows the y direction component of the acceleration detected with the earthquake detector in the place where the distance from an epicenter is near. It is a figure which shows the z direction component of the acceleration detected with the earthquake detector in the place where the distance from an epicenter is near. It is a figure which shows the absolute value of the z direction component of the acceleration detected with the earthquake detector in the place where the distance from an epicenter is near. It is a figure which shows the composite value which took the square root, after adding the square value of each component of the x, y, z direction of the acceleration detected with the earthquake detector in the place where the distance from an epicenter is near. It is a figure which shows the synthesized value which added together the absolute value of each component of the x, y, z direction of the acceleration detected with the earthquake detector in the place where the horizontal distance from a hypocenter is near. It is a figure which shows the x direction component of the acceleration detected with the earthquake detector in the place where the distance from an epicenter is far. It is a figure which shows the y direction component of the acceleration detected with the earthquake detector in the place where the horizontal distance from an epicenter is long. It is a figure which shows the z direction component of the acceleration detected with the earthquake detector in the place where the distance from an epicenter is far. It is a figure which shows the absolute value of the z direction component of the acceleration detected with the earthquake detector in the place where the distance from an epicenter is far. It is a figure which shows the synthetic | combination value which took the square root, after adding the square value of each component of the x, y, z direction of the acceleration detected with the earthquake detector in the place where the distance from a hypocenter is far. It is a figure which shows the synthetic | combination value which added together the absolute value of each component of the x, y, z direction of the acceleration detected with the earthquake detector in the place where the distance from an epicenter is far. It is a block diagram which shows the outline of the elevator in another Example of this invention. It is explanatory drawing of the initial shake detection system at the time of an earthquake in this Example, and an earthquake and a wind determination.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Ride car, 2 ... Counterweight, 3 ... Control board, 4 ... Hoisting machine, 5 ... Governor, 6 ... Main rope, 7 ... Governor rope, 8 ... Compen rope, 9, 14 ... Earthquake detector, 10 ... Machine Room,
11 ... hoistway, 12 ... pit, 13 ... building, 15, 16, 17 ... high-pass filter,
18, 19, 20... Signal, 21... Arithmetic unit, 22... Threshold determination unit, 23.

Claims (9)

  In the elevator apparatus in which a sensor for detecting acceleration or speed is installed in the hoistway or in the building where the hoistway is formed, and the control operation is performed during an earthquake or strong wind using the detection result of the sensor, The sensor detects the acceleration or speed in the horizontal direction and the vertical direction by the sensor, sequentially synthesizes each direction of the acceleration detection signal or speed detection signal, and if the combined signal value is larger than a predetermined threshold value, control operation is performed. An elevator device characterized in that it is performed.   In the elevator apparatus in which a sensor for detecting acceleration or speed is installed in the hoistway or in the building where the hoistway is formed, and the control operation is performed during an earthquake or strong wind using the detection result of the sensor, Sensors detect horizontal and vertical accelerations or velocities, and output horizontal and vertical building shaking signals using the acceleration detection signals or velocity detection signals in each direction. An elevator apparatus characterized by performing sequential synthesis calculation without dividing the vertical direction, and performing initial shake control operation when the synthesized signal value is larger than a predetermined threshold value.   In an elevator apparatus in which a sensor for detecting acceleration is installed in a hoistway or in a building in which the hoistway is formed, and the control operation is performed during an earthquake or strong wind using the detection result of the sensor, Accelerates in three axes orthogonal to each other, and sequentially passes through the high-pass filter that removes the DC component from at least the vertical acceleration detection signal, without separating the signals in the three axes. An elevator apparatus characterized by performing a composite calculation and performing an initial shake control operation when the composite value signal value is larger than a predetermined threshold value.   In an elevator apparatus in which a sensor for detecting acceleration is installed in a hoistway or in a building in which the hoistway is formed, and the control operation is performed during an earthquake or strong wind using the detection result of the sensor, Detect acceleration in the x, y, and z directions of three axes orthogonal to each other, and classify the acceleration signal after passing through a high-pass filter that removes the DC component from each detection signal in the x, y, and z directions. A combined signal value obtained by adding the absolute values of the respective components, a combined signal value obtained by adding the predetermined values to the absolute values of the respective components, and a combined signal value obtained by adding the square values of the respective components, or The combined signal value of the square root of this signal value, the combined signal value obtained by multiplying the square value of each component by a predetermined coefficient, or the combined signal value of the square root of this signal value, the absolute value of each component. A combined signal value obtained by adding the powers of the values, or a combined signal value of the power roots of the signal values, or a combined signal value obtained by adding the power values of the absolute values of the respective components by a predetermined coefficient, respectively, or this signal It is characterized in that at least one composite signal value of the power root composite signal value of the value is sequentially calculated, and when the calculated value is larger than a predetermined threshold value, the initial shake control operation is performed. Elevator device.   5. The elevator apparatus according to claim 3, wherein a speed is detected instead of an acceleration.   6. The acceleration sensor installed at the upper part of the hoistway or the upper part of the building as the first seismic detector, and the acceleration sensor installed at another part of the hoistway or the building according to any one of claims 1 to 5. When the combined signal value of the first seismic sensor and the combined signal value of the second seismic sensor exceed the threshold value within a predetermined time, the initial shake control operation is performed. An elevator apparatus characterized by that.   7. The elevator apparatus according to claim 6, wherein the first earthquake sensor and the second earthquake sensor are sensors that detect at least acceleration in the z direction.   The initial shake control end signal is generated in any one of claims 1 to 7, when the elevator has not yet reached the swing control operation even after a predetermined time has elapsed from the start of the initial swing control operation of the elevator. Elevator device. 8. The initial swing control end when the elevator has not reached the swing control operation after the initial swing control operation of the elevator and the combined signal value becomes equal to or lower than a predetermined threshold value. An elevator apparatus that generates a signal.

Images