CN115867773A

CN115867773A - Sloshing estimation system

Info

Publication number: CN115867773A
Application number: CN202080101571.8A
Authority: CN
Inventors: 伊藤然一; 山中乡平; 渡边诚治; 宫川健
Original assignee: Mitsubishi Electric Corp
Current assignee: Mitsubishi Electric Corp
Priority date: 2020-06-19
Filing date: 2020-06-19
Publication date: 2023-03-28
Also published as: JPWO2021255935A1; WO2021255935A1; JP7276611B2

Abstract

Provided is a sway estimation system which can suppress the number of sensors and can estimate the sway of a building with high accuracy. A sway estimation system (1) is provided with a plurality of vibration sensors (21) and a building sway estimation unit (23). Each vibration sensor (21) is provided in the building (2). Each vibration sensor (21) detects vibration. A building sway estimation unit (23) estimates the sway of the building (2) from the detection results of the respective vibration sensors (21). The plurality of vibration sensors (21) include a 1 st vibration sensor (21 a) and a 2 nd vibration sensor (21 b). The 1 st vibration sensor (21 a) is provided in the 1 st antinode region. The 1 st antinode portion is an antinode portion in the basic vibration mode of the building (2). The 2 nd vibration sensor (21 b) is provided in the 2 nd antinode portion. The 2 nd antinode portion is the antinode portion farthest from the 1 st antinode portion among the plurality of antinodes in the high-order vibration mode of the building (2). The higher order vibration mode is a vibration mode higher than the basic vibration mode.

Description

Sloshing estimation system

Technical Field

The invention relates to a shake estimation system.

Background

Patent document 1 discloses an example of an elevator apparatus. The elevator device is provided with an acceleration sensor and a control unit. The acceleration sensor is provided in the counterweight and the like. The control unit determines whether the diagnosis operation of the elevator device can be performed according to the detection result of the acceleration sensor.

Documents of the prior art

Patent document

Patent document 1: japanese laid-open patent publication No. 2019-104568

Disclosure of Invention

Problems to be solved by the invention

However, in an elevator apparatus that cannot supply power to a counterweight or the like, the diagnosis of the influence of building sway by an acceleration sensor or the like of patent document 1 cannot be performed. Therefore, the influence of the sway of the equipment installed in the building, including the elevator apparatus, may be diagnosed from the sway information of the building. Here, when directly measuring the sway information of the building, for example, it is necessary to provide sensors and the like on each floor of the building.

The present invention has been made to solve the above problems. The invention provides a sway estimation system capable of suppressing the number of sensors and estimating sway of a building with high accuracy.

Means for solving the problems

The shake estimation system of the present invention includes: a plurality of vibration sensors that are provided in a building and detect vibrations, respectively; and a building sway estimation unit that estimates a sway of the building from a detection result of each of the plurality of vibration sensors, the plurality of vibration sensors including: a 1 st vibration sensor provided in a 1 st antinode portion, the 1 st antinode portion being an antinode portion in a basic vibration mode of a building; and a 2 nd vibration sensor provided in a 2 nd antinode portion, the 2 nd antinode portion being a farthest antinode portion from the 1 st antinode portion among a plurality of antinodes in a high-order vibration mode of the building which is a vibration mode higher than the basic vibration mode.

Effects of the invention

The sway estimation system of the present invention can estimate the sway of a building with high accuracy while suppressing the number of sensors.

Drawings

Fig. 1 is a configuration diagram of a building to which the sway estimation system of embodiment 1 is applied.

Fig. 2 is a configuration diagram of a shake estimation system according to embodiment 1.

Fig. 3 is a diagram showing vibration modes of a building to which the sway estimation system of embodiment 1 is applied.

Fig. 4 is a diagram showing an example of vibration detected in the sway estimation system of embodiment 1.

Fig. 5 is a diagram showing an example of vibration detected in the sway estimation system of embodiment 1.

Fig. 6 is a diagram showing an example of the estimated sway quantity of each floor in the sway estimation system of embodiment 1.

Fig. 7 is a flowchart showing an example of the operation of the motion estimation system according to embodiment 1.

Fig. 8 is a hardware configuration diagram of a main part of the fluctuation estimation system according to embodiment 1.

Fig. 9 is a diagram showing an example of vibration detected in the sway estimation system of embodiment 2.

Fig. 10 is a configuration diagram of a shake estimation system according to embodiment 3.

Fig. 11 is a diagram showing an example of the weighting factor according to embodiment 3.

Fig. 12 is a configuration diagram of a shake estimation system according to embodiment 4.

Fig. 13 is a diagram showing an example in which the building sway estimation unit of embodiment 4 estimates the sway of the building.

Detailed Description

Embodiments of the present invention will be described with reference to the accompanying drawings. In the drawings, the same or corresponding portions are denoted by the same reference numerals, and overlapping description is simplified or omitted as appropriate.

Embodiment 1.

Fig. 1 is a configuration diagram of a building 2 to which a sway estimation system 1 of embodiment 1 is applied.

The sway estimation system 1 is applied to a building 2. The sway estimation system 1 is a system that estimates the sway of the applied building 2.

The building 2 has a plurality of floors. An elevator 3 is provided in the building 2. A hoistway 4 of an elevator 3 is installed in a building 2. The hoistway 4 is a space spanning multiple floors. In the building 2, a machine room 5 of the elevator 3 is provided above the hoistway 4.

The elevator 3 includes a hoisting machine 6, a suspension body 7, a deflector sheave 8, a car 9, a counterweight 10, and a control device 11.

The hoisting machine 6 is provided in the machine room 5. The hoisting machine 6 includes a drive sheave 12, a hoisting machine motor 13, and a hoisting machine brake 14. The drive sheave 12 is a pulley of the elevator 3. The hoisting machine motor 13 is a device for rotating the drive sheave 12. The hoisting machine brake 14 is a device that brakes the rotation of the drive sheave 12. The hoisting machine brake 14 is, for example, an electromagnetic brake. The hoisting machine brake 14 includes a brake wheel, a brake shoe, a brake spring, and an electromagnet. The brake pulley is a brake drum or a brake disc coaxially coupled to the drive sheave 12. The brake shoe is a member that comes into contact with the brake wheel when braking the rotation of the drive sheave 12. The brake spring is a spring that presses the brake shoe against the brake wheel by means of an elastic force. The electromagnet is a device that pulls the brake shoe away from the brake wheel against the elastic force of the brake spring when the brake on the rotation of the drive sheave 12 is released.

The suspension body 7 is, for example, a plurality of ropes or a plurality of belts. The suspension body 7 is wound around the drive sheave 12. The deflector wheel 8 is arranged in the machine room 5. The deflector wheel 8 is a pulley around which the suspension body 7 is wound. Both ends of the suspension body 7 hang down from the machine room 5 into the hoistway 4. One end of the suspension body 7 is connected to the car 9 in the hoistway 4. The other end of the suspension body 7 is connected to a counterweight 10 in the hoistway 4.

The car 9 and the counterweight 10 are suspended in the hoistway 4 by the suspension body 7. The car 9 and the counterweight 10 are raised and lowered in opposite directions in the hoistway 4 by the hoisting machine 6. The car 9 is a facility for transporting users of the elevator 3 and the like between a plurality of floors. The counterweight 10 is a device that balances the load applied to both end sides of the suspension body 7 with the car 9.

The control device 11 is installed in the machine room 5. The control device 11 controls the operation of the elevator 3. The control device 11 controls the rotation of the hoisting machine 6 to raise and lower the car 9 in the hoistway 4 at a predetermined speed.

The elevator 3 includes a pair of car guide rails 15 and a pair of counterweight guide rails 16. Each car guide rail 15 and each counterweight guide rail 16 are provided in the hoistway 4. The pair of car guide rails 15 are disposed on the left and right of the car 9, for example. Each car guide rail 15 guides the up-and-down movement of the car 9. The pair of counterweight guide rails 16 is disposed on the left and right of the counterweight 10, for example. Each counterweight guide rail 16 guides the raising and lowering of the counterweight 10.

The elevator 3 includes a car buffer 17 and a counterweight buffer 18. A car buffer 17 and a counterweight buffer 18 are provided at the bottom of the hoistway 4. The car buffer 17 is provided below the car 9. The car buffer 17 is a device that cushions the impact when the car 9 collides with the bottom of the hoistway 4. The counterweight buffer 18 is disposed below the counterweight 10. The counterweight buffer 18 is a device that cushions the impact of the counterweight 10 when it collides with the bottom of the hoistway 4.

The elevator 3 includes a P-wave detector 19 (P-wave) and an S-wave detector 20 (S-wave). The P-wave detector 19 and the S-wave detector 20 are devices for detecting seismic waves. The P-wave detector 19 is provided at the bottom of the hoistway 4. The P-wave detector 19 detects P-waves. The S-wave detector 20 is installed in the machine room 5. The S-wave detector 20 detects the S-wave.

In the elevator 3, the control device 11 shifts the operation of the elevator 3 from the normal operation to the earthquake control operation when the earthquake waves detected by the P-wave detector 19 and the like are fluctuated beyond a predetermined threshold value, for example. In the earthquake control operation, the control device 11 stops the running car 9 at the nearest floor. Then, the user riding in the car 9 is notified to get off the car 9. If the S-wave detector 20 does not detect a large fluctuation than a predetermined fluctuation, the control device 11 returns the operation of the elevator 3 to the normal operation.

Fig. 2 is a configuration diagram of the motion estimation system 1 according to embodiment 1.

The sway estimation system 1 is a system that estimates the sway of a building 2. Here, the sway of the building 2 estimated by the sway estimation system 1 is, for example, a distribution of a sway amount relating to the height of the building 2. The amount of shaking is, for example, the maximum acceleration, maximum velocity, or maximum displacement of shaking. The sway estimation system 1 estimates, for example, the sway of the building 2 caused by an earthquake when the earthquake occurs. The sway estimation system 1 estimates, for example, the sway of the building 2 in the horizontal direction. The shake estimation system 1 includes a plurality of vibration sensors 21 and a shake estimation device 22.

Each vibration sensor 21 is provided in the building 2. In this example, each vibration sensor 21 is fixed to the building 2. Some or all of the plurality of vibration sensors 21 are disposed in the hoistway 4, for example. Each vibration sensor 21 is a device that detects vibration. Each vibration sensor 21 outputs acceleration, velocity, displacement, and the like of vibration as detected values of vibration. The respective vibration sensors 21 are disposed at mutually different heights in the building 2. The vibration sensors 21 are disposed on different floors, for example.

The sway estimation device 22 is, for example, a server computer or the like installed in the building 2. Alternatively, the sway estimation device 22 may be mounted integrally with hardware of the elevator 3 such as the control device 11. Alternatively, the sway estimation device 22 may be a server computer or the like installed at a site outside the building 2. The external site is, for example, an information center or the like that collects information of the elevator 3. Alternatively, the motion estimation device 22 may be, for example, a virtual server on a cloud service. The sway estimation device 22 includes a building sway estimation unit 23 and an elevator sway estimation unit 24.

The building sway estimation unit 23 is a part that estimates sway of the building 2 from the detection results of the respective vibration sensors 21. The building sway estimation unit 23 outputs the estimated sway of the building 2 to the elevator sway estimation unit 24.

The elevator sway estimation unit 24 is a unit that estimates sway of the equipment of the elevator 3 from the sway of the building 2 estimated by the building sway estimation unit 23. The equipment of the elevator 3 whose sway is to be estimated is e.g. the car 9 or the counterweight 10 etc. The elevator sway estimating unit 24 may estimate sway of a device that does not move, such as the control device 11, for example. Here, the sway of the equipment of the elevator 3 estimated by the elevator sway estimation unit 24 is, for example, a sway amount of the equipment of the elevator 3. The amount of shaking is, for example, the maximum acceleration, maximum velocity, or maximum displacement of shaking.

Next, an example of the arrangement of the vibration sensor 21 in the shake estimation system 1 will be described with reference to fig. 3.

Fig. 3 is a diagram showing the vibration pattern of the building 2 to which the sway estimation system 1 of embodiment 1 is applied.

In fig. 3, the vertical axis represents the height of the building 2. In fig. 3, the horizontal axis represents the amplitude of vibration in each vibration mode. The left graph of fig. 3 represents the primary vibration pattern. The central graph of fig. 3 represents the secondary vibration mode. The right graph of fig. 3 represents the third order vibration mode.

In this example, the sway estimation system 1 is provided with three vibration sensors 21 at the intermediate floor. The three vibration sensors 21 are disposed at positions set using the vibration pattern of the building 2.

When building 2 is subjected to forced excitation from the ground surface due to an earthquake, building 2 can be modeled as a one-dimensional continuous elastic body. In this example, the vibration pattern of the building 2 indicates relative vibration with reference to the lowermost layer. In this model, the uppermost layer, which is the upper end of the building 2, is a free end. Further, the lowermost floor as the lower end portion of the building 2 is a fixed end. At this time, the sway of the building 2 is represented by the superposition of vibration modes of the building 2 modeled as a continuous elastic body. Therefore, each vibration sensor 21 is disposed at an arbitrary position of the antinode portion in an arbitrary vibration mode of the building 2 so as to be able to acquire vibration information in the vibration mode. Here, the antinode portion is a portion where the amplitude of vibration in the vibration mode is extremely large. The antinode portion may be, for example, the upper end portion of the building 2. Let n be a natural number, and the n-order vibration mode has n antinodes, for example. The n-order vibration mode includes, for example, n nodes. The node portion is a portion where the amplitude of vibration in the vibration mode is zero. The node portion may be, for example, a lower end portion of the building 2. The lower end of the building 2 corresponds to, for example, the lowermost floor. In general, the sway of the building 2 caused by the earthquake is well reproduced by three vibration modes of primary, secondary, and tertiary. Therefore, the three vibration sensors 21 are arranged at the position of any antinode portion among antinodes of the three vibration modes up to three times. The shake estimation system 1 further includes a vibration sensor 21, and the vibration sensor 21 is disposed at a position that is a vibration reference of the vibration mode. The vibration sensor 21 is disposed, for example, in the lowermost floor of the building 2.

For simplicity, the arrangement of the three vibration sensors 21 at the intermediate floor will be described using an example in which the waveform in the vibration mode of the building 2 is represented in a sinusoidal waveform. In a general case where the waveform of the vibration mode of the building 2 is not represented by a sinusoidal waveform, the arrangement of the plurality of vibration sensors 21 is set by the same procedure. As the waveform of the vibration mode of the building 2, for example, a waveform calculated in advance in accordance with the structure of the building 2 or the like is used.

Waveform phi of vibration mode of n times _n (x) The waveform is represented by a sine wave as shown in the following equation (1). Here, x is a variable representing the height of the building 2. The origin of the height x is set to zero at the lowest layer on the ground, for example. The height x is normalized to be 1 at the uppermost level of the building 2.

[ formula 1]

The configuration of the three vibration sensors 21 is set using the vibration pattern of the building 2 in order of the number of times from low to high.

Waveform phi of primary vibration mode of building 2 ₁ (x) Shown by the following formula (2). The primary vibration mode is the lowest order vibration mode. The primary vibration mode is a basic vibration mode.

[ formula 2]

The 1 st vibration sensor 21a, which is the first of the three vibration sensors 21, is disposed in the antinode portion in the primary vibration mode. The antinode portion of the primary vibration mode is only the upper end portion of x =1. Therefore, the 1 st vibration sensor 21a is disposed at x = x ₁ An antinode portion at the upper end of =1. The antinode portion is the 1 st antinode portion. x is a radical of a fluorine atom ₁ Is the position of the 1 st antinode.

Waveform phi of secondary vibration mode of building 2 ₂ (x) This is shown by the following formula (3). The secondary vibration mode is an example of a higher-order vibration mode higher than the basic vibration mode.

[ formula 3]

The 2 nd vibration sensor 21b, which is the second of the two vibration sensors 21, is disposed in any one of antinodes in the secondary vibration mode. The antinodes of the secondary vibration mode are two portions of a portion x =1/3 and an upper end portion x =1. Since the 1 st vibration sensor 21a is already arranged at the upper end portion of x =1, the 2 nd vibration sensor 21b is arranged at x = x ₂ And a antinode area of = 1/3. The antinode portion is a 2 nd antinode portion. x is the number of ₂ Is the position of the 2 nd antinode.

Waveform phi of the tertiary vibration mode of the building 2 ₃ (x) Shown by the following formula (4). The third vibration mode being higher order than the high order vibration modeExamples of vibration modes.

[ formula 4]

The 3 rd vibration sensor 21c, which is the 3 rd one of the three vibration sensors 21, is disposed in any one of antinodes in the tertiary vibration mode. The antinode portion in the tertiary vibration mode includes three portions, i.e., a portion x =1/5, a portion x =3/5, and an upper end portion x =1. Since the 1 st vibration sensor 21a is already arranged at the upper end portion of x =1, the 3 rd vibration sensor 21c is arranged at either the x =1/5 portion or the x =3/5 portion.

Here, it is preferable that each vibration sensor 21 is disposed over the entire height of the building 2 so that a decrease in estimation accuracy of building 2 sway at a position where the vibration sensor 21 is not provided can be suppressed. Therefore, the respective vibration sensors 21 are disposed at positions as far apart from each other as possible. In this example, the 3 rd vibration sensor 21c is disposed in the antinode portion having the largest distance to the closer one of the 1 st antinode portion and the 2 nd antinode portion. The distance between the two antinodes is, for example, the difference in height between the two antinodes.

In this example, the distance Δ x from the x =1/5 portion of the 1 st antinode of x =1 is Δ x =4/5. The distance Δ x from the x =1/5 portion of the 2 nd antinode of x =1/3 is Δ x =2/15. Therefore, the distance from the x =1/5 portion of the 1 st antinode or the 2 nd antinode is 2/15. Similarly, the distance from the x =3/5 portion closer to the 1 st antinode or the 2 nd antinode is 4/15. Therefore, the antinode portion of the third vibration mode having the largest distance to the nearer one of the 1 st antinode and the 2 nd antinode is a portion of x = 3/5. Therefore, the 3 rd vibration sensor 21c is disposed at x = x ₃ An antinode area of = 3/5. The antinode portion is a 3 rd antinode portion. x is the number of ₃ Is the position of the 3 rd antinode.

When the shake estimation system 1 includes four or more vibration sensors 21, the arrangement of the vibration sensors 21 is set by the same procedure. The vibration sensor 21 arranged in any antinode portion among antinodes in the vibration mode of the order n is arranged in the following antinode portion among antinodes in the vibration mode of the order n: the antinode portion has the largest distance to the nearest antinode portion among antinodes in which the vibration sensor 21 is disposed, for example, using a vibration mode lower than the n-th order.

Next, an example of estimating the sway of the building 2 in the sway estimation system 1 will be described with reference to fig. 4.

Fig. 4 is a diagram showing an example of vibration detected in the vibration estimation system 1 of embodiment 1.

In fig. 4, the horizontal axis represents time. In fig. 4, the vertical axis represents the vibration at the position where the vibration sensor 21 is provided in the building 2. The upper graph of fig. 4 represents the vibration at the 1 st antinode portion. The lower graph of fig. 4 represents the vibration at the 2 nd antinode. The graph in the middle of fig. 4 represents the vibration at the 3 rd antinode portion. In the three graphs from the upper stage to the lower stage of fig. 4, a relative value obtained by subtracting the detected value of the vibration of the reference vibration sensor 21 disposed at the lowermost layer on the ground surface from the detected value of the vibration sensor 21 disposed at the antinode portion corresponding to each graph is shown. In this example, the detected value of the vibration is the acceleration of the vibration. In addition, even when the detected value of the vibration is a speed or a displacement in each vibration sensor 21, the sway of the building 2 is estimated by the same processing.

For example, during the occurrence of an earthquake or the like, displacement, velocity, acceleration, or the like, which is the detection value of vibration at the position where each vibration sensor 21 is installed, changes with time. Therefore, the shake estimation system 1 obtains the maximum value of the detected values of the vibrations so that the maximum value of the displacement, velocity, acceleration, or the like of the vibrations can be estimated as the shake amount. The maximum value obtained here is, for example, the maximum value in the entire time zone during which an earthquake occurs. In the sway estimation system 1, the detection values of the respective vibration sensors 21 at the same time are acquired so that the sway of the building 2 can be estimated from the vibration pattern of the building 2. Thus, the timings in the respective vibration sensors 21 are synchronized with each other, for example.

The building sway estimation unit 23 estimates sway of the building 2 when an earthquake occurs, for example. In the oscillation estimation system 1, the occurrence and termination of an earthquake may be detected by, for example, the P-wave detector 19 or the S-wave detector 20. Alternatively, the occurrence and termination of the earthquake may be detected based on the detection value of any of the vibration sensors 21.

When the maximum value of the vibration after the occurrence of the earthquake is updated with respect to the detected value of the vibration sensor 21 arranged in the antinode portion in any vibration mode, the building sway estimation unit 23 stores the maximum value of the vibration sensor 21. Here, the maximum value of the vibration is, for example, the maximum value of relative values obtained by subtracting the detection value of the reference vibration sensor 21. This maximum is represented in fig. 4 by a circle symbol. At this time, the building sway estimation unit 23 stores the detected values of the vibrations of all the other vibration sensors 21 at the same time. The detection value stored here is, for example, a relative value obtained by subtracting the detection value of the reference vibration sensor 21. The relative values are represented by quadrilateral symbols in fig. 4. In this example, since there are three vibration sensors 21 arranged in the antinode portion, three times t at which the relative value of the detection value of each vibration sensor 21 is maximum are stored ₁ 、t ₂ And t ₃ The detected values of the respective vibration sensors 21 below.

Since the sway of the building 2 is expressed by the superposition of the vibration patterns, the time t ₁ The relative value of the detection values of the respective vibration sensors 21 below is represented by the following expression (5). Wherein, a ₁₁ Represents and at time t ₁ The detected value of the 1 st vibration sensor 21a is related to the relative value of the reference vibration sensor 21. a is ₂₁ Represents and at time t ₁ The detected value of the 2 nd vibration sensor 21b is related to the relative value of the reference vibration sensor 21. a is ₃₁ Represents and at time t ₁ The detected value of the 3 rd vibration sensor 21c is related to the relative value of the reference vibration sensor 21. Further, q is ₁ (t) represents the mode amplitude of the primary vibration mode at time t. q. q.s ₂ (t) represents the mode amplitude of the secondary vibration mode at time t. q. q.s ₃ (t) represents the mode amplitude of the tertiary vibration mode at time t. Here, the mode amplitude is an example of a component of each vibration mode.

[ formula 5]

The building sway estimating section 23 uses the known waveform phi of each vibration mode ₁ 、φ ₂ And phi ₃ The time t is calculated from equation (5) ₁ Mode amplitude q of ₁ (t ₁ )、q ₂ (t ₁ ) And q is ₃ (t ₁ ). The building sway estimation unit 23 can calculate the time t associated with an arbitrary position x of the building 2 including the position where the vibration sensor 21 is not provided, from the calculated mode amplitude ₁ The amount of sway of the building 2 below. In this example, the building sway estimation unit 23 calculates a sway amount for a position corresponding to each floor. Similarly, the building sway estimation unit 23 calculates the time t for the position corresponding to each floor ₂ And t ₃ The amount of sway of the building 2 below.

Next, an example of the estimation result of the sway of the building 2 in the sway estimation system 1 will be described with reference to fig. 5 and 6.

Fig. 5 is a diagram showing an example of vibration detected in the sway estimation system 1 of embodiment 1.

Fig. 6 is a diagram showing an example of the amount of sway of each floor estimated in sway estimation system 1 of embodiment 1.

In fig. 5, the horizontal axis represents time. In fig. 5, the vertical axis represents the acceleration of vibration at a position where the vibration sensor 21 is provided in the building 2. The solid-line graph of fig. 5 represents the vibration at the 1 st antinode portion. The dashed-line graph of fig. 5 represents the vibration at the 2 nd antinode. The one-dot chain line graph of fig. 5 represents the vibration at the 3 rd antinode portion. In this example, the building 2 is a 20-story building. The 1 st antinode portion, the 2 nd antinode portion, and the 3 rd antinode portion are 20 floors, 7 floors, and 12 floors of the building 2. The 1 st vibration sensor 21a is disposed on the 20 th antinode portions. The 2 nd vibration sensor 21b is disposed on 7 layers which are the 2 nd antinode portions. The 3 rd vibration sensor 21c is disposed on the 12 rd layer which is the 3 rd antinode portion. The detection value of the 1 st vibration sensor 21a is maximum at a timing near 12.5 seconds.

Fig. 6 shows the building sway estimated by the building sway estimating unit 23 with respect to the time when the detection value of the 1 st vibration sensor 21a is maximum, from the detection result of the vibration shown in fig. 5. In fig. 6, the horizontal axis represents the floor of the building 2. In fig. 6, the vertical axis represents the acceleration, which is the amount of sway of the building 2. In fig. 6, a solid line graph shows the estimated values of the shake estimation portion. In fig. 6, a square symbol indicates the amount of shaking of each floor of the building 2 at the time when the detection value of the 1 st vibration sensor 21a is maximum.

As shown in fig. 6, the estimated value of the sway estimating unit roughly corresponds to the sway amount of each floor of the building 2. In this way, the amount of sway of the entire building 2 can be estimated with high accuracy using a small number of vibration sensors 21. Therefore, the influence of the sway on the equipment installed in the building 2 can be diagnosed from the sway amount of the building 2.

Next, an example of estimating the machine sway of the elevator 3 in the sway estimation system 1 will be described with reference to fig. 7.

Fig. 7 is a flowchart illustrating an operation example of the motion estimation system 1 according to embodiment 1.

When an earthquake occurs, the control device 11 shifts the operation of the elevator 3 from the normal operation to the earthquake control operation. In the elevator 3, for example, when a fluctuation larger than a preset fluctuation is detected by the S-wave detector 20 or the like, it is determined whether the diagnosis operation can be performed. The diagnosis operation is an operation for diagnosing the influence of the fluctuation by checking whether or not there is an abnormality in the elevator 3.

Whether or not the diagnosis operation can be performed is determined, for example, based on the sway of the building 2 estimated by the sway estimation system 1 based on the detection results of the respective vibration sensors 21. The building sway estimation unit 23 outputs the estimation result of the sway of the building 2 to the elevator sway estimation unit 24.

The elevator sway estimation unit 24 obtains an estimation result of the sway of the building 2 from the building sway estimation unit 23. The elevator sway estimating unit 24 acquires the position of the equipment of the elevator 3 from, for example, the control device 11. The position of the equipment of the elevator 3 is e.g. the position of the car 9 or counterweight 10 etc. The elevator sway estimation section 24 estimates sway of the equipment of the elevator 3 from the estimation result of sway of the building 2 and the position of the equipment of the elevator 3. The elevator sway estimating unit 24 estimates, for example, sway of the building 2 at the acquired position of the device as sway of the device.

Then, the elevator sway estimating unit 24 compares the estimated sway amount of the equipment of the elevator 3 with a preset threshold value. Here, the threshold value is a value stored in advance by, for example, the elevator sway estimating unit 24 or the like as a criterion for determining whether the diagnostic operation of the elevator 3 can be performed. The elevator sway estimating unit 24 determines that the diagnostic operation is possible when the estimated sway amount is lower than a threshold value. On the other hand, the elevator sway estimating unit 24 determines that the diagnostic operation cannot be performed when the estimated sway amount is equal to or greater than the threshold value. The elevator sway estimating unit 24 outputs the result of the determination as to whether the diagnostic operation can be performed to the control device 11.

When the judgment result that the diagnostic operation is possible is received from the elevator sway estimating unit 24, the control device 11 starts the diagnostic operation of the elevator 3. When the abnormality is not detected during the diagnosis operation, the control device 11 returns the operation of the elevator 3 to the normal operation.

On the other hand, when the result of determination that the diagnostic operation cannot be performed is received from the elevator sway estimating unit 24, the control device 11 suspends the operation of the elevator 3 and waits until the maintenance worker performs the spot inspection.

The sway estimation system 1 may further include four or more vibration sensors 21 provided in the antinode area in the vibration mode. The sway estimation system 1 may include only two vibration sensors 21 provided in the antinode area in the vibration mode. At this time, the building sway estimation unit 23 estimates the sway of the building 2 from, for example, the primary vibration mode and the secondary vibration mode.

In the case where the P-wave probe 19 or the S-wave probe 20 has a function of outputting a vibration waveform, the P-wave probe 19 or the S-wave probe 20 may also have a function of the vibration sensor 21 in the motion estimation system 1. For example, the P-wave sensor 19 disposed at the bottom of the hoistway 4 may function as the reference vibration sensor 21 disposed at the lowermost floor of the building 2. The S-wave probe 20 disposed in the machine room 5 may function as the vibration sensor 21 disposed in the antinode region in the fundamental vibration mode.

In the building 2, the machine room 5 may not be provided above the hoistway 4 or the like. In this case, the elevator 3 installed in the building 2 may be a machine room-less elevator. The elevator 3 installed in the building 2 is not limited to the type exemplified here. The elevator 3 installed in the building 2 may be a 2: an elevator of 1 roping ratio, or a self-propelled elevator without a hoisting machine. Further, a plurality of elevators 3 may be provided in the building 2. In this case, the operation of each elevator 3 may be managed by a group controller or the like.

The sway estimation system 1 may not have the elevator sway estimation unit 24. The sway estimation system 1 may output the estimated sway information of the building 2 to, for example, an external system or the like that diagnoses the influence of sway of the elevator 3.

As described above, the sway estimation system 1 of embodiment 1 includes the plurality of vibration sensors 21 and the building sway estimation unit 23. Each vibration sensor 21 is provided in the building 2. Each vibration sensor 21 detects vibration. The building sway estimation unit 23 estimates sway of the building 2 from the detection results of the respective vibration sensors 21. The plurality of vibration sensors 21 include a 1 st vibration sensor 21a and a 2 nd vibration sensor 21b. The 1 st vibration sensor 21a is provided in the 1 st antinode portion. The 1 st antinode portion is an antinode portion in the basic vibration mode of the building 2. The 2 nd vibration sensor 21b is provided in the 2 nd antinode portion. The 2 nd antinode portion is the antinode portion farthest from the 1 st antinode portion among the plurality of antinodes in the high-order vibration mode of the building 2. The higher order vibration mode is a vibration mode higher than the basic vibration mode.

In this configuration, the plurality of vibration sensors 21 are disposed at positions of the building 2 including the 1 st antinode portion and the 2 nd antinode portion. The vibration of the 1 st antinode portion well represents the vibration based on the fundamental vibration mode. The vibration of the 2 nd antinode portion well represents the vibration based on the higher order vibration mode. Since the sway of the building 2 is represented by the superposition of the vibration modes such as the basic vibration mode and the high-order vibration mode, information indicating the sway of the building 2 can be detected by a small number of vibration sensors 21. Thus, the building sway estimation unit 23 can estimate the sway of the building 2 with high accuracy while suppressing the number of vibration sensors 21. Further, since the sway of the building 2 can be estimated with high accuracy, even if a large number of devices for diagnosing the influence of the sway are provided in the building 2, it is not necessary to provide a sensor for detecting vibration separately for each of the devices. Therefore, an increase in the number of sensors such as the vibration sensor 21 used to diagnose the influence of the shaking can be suppressed.

Further, the building sway estimation section 23 estimates components of the respective vibration modes of the building 2 from the detection results of the respective vibration sensors 21. The building sway estimation unit 23 estimates the sway of the building 2 using the estimated components of the vibration pattern.

According to this configuration, the building sway estimation unit 23 can estimate the sway quantity with high accuracy even at a position where the vibration sensor 21 is not provided, from the waveform of the vibration mode.

Further, the building sway estimation unit 23 estimates sway of the building 2 from the detected values of the vibrations of the plurality of vibration sensors 21 at the time when the maximum value of the vibration is detected by at least one of the vibration sensors 21.

In this configuration, the detected values of the vibrations of the respective antinode portions at the same time are acquired. Therefore, the building sway estimation unit 23 can uniquely and highly accurately estimate the component of the vibration mode. The estimated fluctuation is a fluctuation that favorably reflects the vibration mode corresponding to the antinode region where the vibration becomes maximum. Therefore, the influence of each vibration mode on the fluctuation can be diagnosed with high accuracy by the fluctuation estimation system 1.

Further, the plurality of vibration sensors 21 includes a 3 rd vibration sensor 21c. The 3 rd vibration sensor 21c is provided in the 3 rd antinode portion. The 3 rd antinode portion is an antinode portion having the largest distance to the closer one of the 1 st antinode portion and the 2 nd antinode portion, among the plurality of antinodes in the vibration mode having higher order than the higher-order vibration mode corresponding to the 2 nd antinode portion.

With this configuration, the building sway estimation unit 23 can estimate the sway of the building 2 with higher accuracy. Further, the respective vibration sensors 21 are disposed apart from each other throughout the entire building 2. Therefore, the building sway estimation unit 23 can estimate the sway of the entire building 2 with higher accuracy.

The sway estimation system 1 further includes an elevator sway estimation unit 24. The elevator sway estimation unit 24 estimates sway of equipment of the elevator 3 provided in the building 2 from the sway of the building 2 estimated by the building sway estimation unit 23.

With this configuration, the influence of the vibration of the equipment of the elevator 3 can be diagnosed with high accuracy. Further, it is not necessary to provide the vibration sensor 21 to the equipment of the elevator 3 such as the counterweight 10 moving in the building 2. Therefore, wiring for supplying power to the counterweight 10 and the like, or for signal communication with the counterweight 10 and the like is not required. Therefore, it is not necessary to take countermeasures against the hooking of the wiring in the counterweight 10 and the like. Further, even when a plurality of elevators 3 are provided in the building 2, it is not necessary to provide the vibration sensor 21 for each elevator 3. Therefore, an increase in the number of sensors such as the vibration sensor 21 used to diagnose the influence of the shake can be suppressed. Further, the elevator sway estimating unit 24 can accurately determine whether or not the diagnosis operation of the elevator 3 can be performed. If the diagnosis operation is possible, the diagnosis operation can be performed more reliably, and therefore the elevator 3 that returns to the normal operation can be increased when an earthquake occurs. Further, since the diagnostic operation can be suppressed when the diagnostic operation is not possible, occurrence of a secondary disaster such as damage to the equipment of the elevator 3 during the diagnostic operation can be suppressed.

Next, an example of the hardware configuration of the motion estimation system 1 will be described with reference to fig. 8.

Fig. 8 is a hardware configuration diagram of a main part of the fluctuation estimation system 1 according to embodiment 1.

The various functions of the shake estimation system 1 may be implemented by processing circuitry. The processing circuit is provided with at least one processor 100a and at least one memory 100b. The processing circuit includes the processor 100a, the memory 100b, and at least one dedicated hardware 200, or may include at least one dedicated hardware 200 instead of the processor 100a and the memory 100b.

In the case where the processing circuit includes the processor 100a and the memory 100b, each function of the shake estimation system 1 is realized by software, firmware, or a combination of software and firmware. At least one of the software and the firmware is described as a program. The program is stored in the memory 100b. The processor 100a realizes each function of the shake estimation system 1 by reading out and executing a program stored in the memory 100b.

The processor 100a is also called a CPU (Central Processing Unit), a Processing device, an arithmetic device, a microprocessor, a microcomputer, or a DSP. The Memory 100b is configured by a nonvolatile or volatile semiconductor Memory such as a RAM (Random Access Memory), a ROM (Read Only Memory), a flash Memory, an EPROM (Erasable Programmable Read Only Memory), an EEPROM (Electrically Erasable Programmable Read Only Memory), or the like.

When the processing Circuit includes the dedicated hardware 200, the processing Circuit is realized by, for example, a single Circuit, a composite Circuit, a programmed processor, a parallel programmed processor, an ASIC (Application Specific Integrated Circuit), an FPGA (Field Programmable Gate Array), or a combination thereof.

The respective functions of the shake estimation system 1 may be implemented by the processing circuit, respectively. Alternatively, the functions of the shake estimation system 1 may be collectively implemented by the processing circuit. The functions of the shake estimation system 1 may be implemented partially by dedicated hardware 200 and partially by software or firmware. In this way, the processing circuitry implements the functions of the shake estimation system 1 through dedicated hardware 200, software, firmware, or a combination thereof.

Embodiment 2.

In embodiment 2, points different from the example disclosed in embodiment 1 will be described in particular detail. As for the features not described in embodiment 2, any features of the example disclosed in embodiment 1 may be adopted.

Fig. 9 is a diagram showing an example of vibration detected in the sway estimation system 1 of embodiment 2.

In fig. 9, the horizontal axis represents time. In fig. 9, the vertical axis represents the vibration at the position where the vibration sensor 21 is provided in the building 2. Fig. 9 is a graph showing vibration at the 1 st antinode portion.

The building sway estimation unit 23 divides the period of occurrence of sway of the building 2 into a plurality of time widths. The period during which the building 2 shakes is, for example, a period from the occurrence of an earthquake which forcibly vibrates the building 2 until the end of the earthquake. The length of each time width is, for example, a fixed time T. The building sway estimation unit 23 estimates the sway of the building 2 for each time width. In fig. 9, the respective time widths are shown by dashed boxes.

The building sway estimation unit 23 estimates the sway of the building 2 for each time width. The building sway estimation unit 23 stores the maximum values of the vibration sensors 21 arranged in the antinode portions in the vibration modes in the respective time widths. The building sway estimation unit 23 stores the detection values of all other vibration sensors 21 at the time when the maximum value is detected by any of the vibration sensors 21. The building sway estimation unit 23 estimates the sway quantity by, for example, calculating the mode amplitude of each vibration mode for each time point at which the detection values are stored. When the sway estimation system 1 includes three vibration sensors 21 arranged in the antinode portion, the building sway estimation unit 23 calculates the mode amplitude at three times for each time width.

As described above, the building sway estimation unit 23 of the sway estimation system 1 according to embodiment 2 estimates the sway of the building 2 for each of the plurality of time widths obtained by dividing the sway period of the building 2.

With this configuration, the movement of the building 2 at more times can be estimated. Therefore, it is possible to suppress overlooking when the amount of shake increases at a position of the building 2 where the vibration sensor 21 is not provided.

In the case where the earthquake continues for a long time, the building sway estimation unit 23 may sequentially overwrite and store the time width data in which the detection values are already stored from the time width data having a small maximum value so that the data capacity of the detection values of the vibration sensors 21 can be suppressed.

Embodiment 3.

In embodiment 3, points different from the examples disclosed in embodiment 1 or embodiment 2 will be described in particular detail. As for the features not described in embodiment 3, any of the features of the examples disclosed in embodiment 1 or embodiment 2 may be adopted.

Fig. 10 is a configuration diagram of the shake estimation system 1 according to embodiment 3.

The motion estimation device 22 includes a weight coefficient storage unit 25. The weight coefficient storage unit 25 is a part that stores the weight coefficients calculated in advance. The weight coefficient is a coefficient for estimating the equipment sway of the elevator 3. The weight coefficient is set in advance in correspondence with each vibration mode of the building 2. The weight coefficient corresponds to the vibration mode of the building 2, for example, by the relationship between the natural frequency of the device of the elevator 3 and the natural frequency of each vibration mode of the building 2. For example, in the case where the equipment of the elevator 3 is the car 9, the natural frequency of the car 9 is calculated by modeling the mechanical linkage between the car 9 and the car guide rails 15 as a combination of springs and the like. Similarly, in the case where the equipment of the elevator 3 is the counterweight 10, the natural frequency of the counterweight 10 is calculated by modeling or the like the mechanical linkage between the counterweight 10 and the counterweight guide rails 16.

In fig. 11, the horizontal axis represents the vibration frequency. In fig. 11, the vertical axis represents the weight coefficient. Fig. 11 is a graph showing the relationship between the weight coefficient and the natural frequency of the vibration mode of the building 2.

In this example, the natural frequency of the primary vibration mode, the secondary vibration mode, and the tertiary vibration mode of the building 2 is represented by ω ₁ 、ω ₂ And ω ₃ . Further, let the natural frequency of the equipment of the elevator 3 be ω ₀ . The weight coefficient is set by, for example, the following function: the closer the natural frequency of the vibration mode of the building 2 is to ω ₀ The larger the value of the function.

E.g. with respect to natural frequency omega of vibrations of equipment sufficiently far from elevator 3 ₀ Natural frequency of vibration omega ₁ The weight coefficient storage unit 25 stores the weight coefficient α ₁ =1. In addition, the natural frequency of vibration ω in respect of equipment having a proximity to the elevator 3 ₀ Natural frequency of vibration omega ₂ The weight coefficient storage unit 25 stores the weight coefficient α ₂ And (2). In addition, the natural frequency ω of vibration with respect to equipment having a proximity to the elevator 3 ₀ Of moderate natural frequency omega ₃ The weight coefficient storage unit 25 stores the weight coefficient α ₃ . In this example, 1 < α ₃ ＜2。

The elevator sway estimation unit 24 calculates a value obtained by multiplying the mode amplitude of each vibration mode of the building 2 estimated by the building sway estimation unit 23 by a weight coefficient. The elevator sway estimation unit 24 estimates the value at time t by the following equation (6) using the calculated value ₁ Rocking y (t) of the equipment of the elevator 3 at position x ₁ ,x)。

[ formula 6]

y(t ₁ ,x)＝α ₁ q ₁ (t ₁ )φ ₁ (x)+α ₂ q ₂ (t ₁ )φ ₂ (x)+α ₃ q ₃ (t ₁ )φ ₃ (x)······(6)

As described above, the sway estimation system 1 of embodiment 3 includes the weight coefficient storage unit 25 and the elevator sway estimation unit 24. The weight coefficient storage unit 25 stores weight coefficients preset for the respective vibration modes of the building 2. The elevator sway estimating unit 24 estimates sway of the equipment of the elevator 3 installed in the building 2 using the result of multiplying the component of each vibration mode of the building 2 estimated by the building sway estimating unit 23 by the weight coefficient stored in the weight coefficient storage unit 25.

With this configuration, the sway of the equipment of the elevator 3 can be estimated with higher accuracy. This enables the recovery of the elevator 3 by the diagnostic operation to be performed more reliably. In addition, the occurrence of a secondary disaster due to the diagnostic operation can be more reliably suppressed.

Embodiment 4.

In embodiment 4, points different from the examples disclosed in embodiments 1 to 3 will be described in particular detail. As for the features not described in embodiment 4, any features of the examples disclosed in embodiments 1 to 3 may be adopted.

Fig. 12 is a configuration diagram of the shake estimation system 1 according to embodiment 4.

The sway estimation device 22 includes a floor response storage unit 26. The floor response storage unit 26 is a part that stores the floor response of the building 2 calculated in advance. Here, the floor response of the building 2 is the following data: this data is obtained by providing a plurality of seismic waves obtained by normalizing the vibration model of the building 2 by the maximum value and storing the maximum value of the amount of shaking with respect to each floor. In this example, the floor response of the building 2 is stored in association with the position of the building 2 including the antinode portion in the vibration mode in which the vibration sensor 21 is arranged.

Fig. 13 is a diagram showing an example in which the building sway estimating unit 23 of embodiment 4 estimates sway of the building 2.

In fig. 13, the vertical axis represents the height x of the building 2. In fig. 13, the horizontal axis represents the amount of sway of the building 2. In fig. 13, the solid-line graph represents the floor response of the building 2 stored in the floor response storage unit 26. In fig. 13, a square symbol indicates the vibration detection value of each vibration sensor 21. Here, the vibration detection value is, for example, a relative value obtained by subtracting the vibration detection value of the reference vibration sensor 21 provided at the lowermost layer on the ground surface. Alternatively, the vibration detection value may be the detection value itself of each vibration sensor 21. In fig. 13, the broken-line graph represents the sway of the building 2 estimated by the building sway estimation unit 23.

The building sway estimation unit 23 obtains the maximum value of the detection values of the respective vibration sensors 21 over the entire time of occurrence of the earthquake. In fig. 13, the maximum values obtained for the 1 st vibration sensor 21a, the 2 nd vibration sensor 21b, and the 3 rd vibration sensor 21c are indicated by square symbols. The building sway estimation unit 23 calculates a difference between the acquired maximum value and the floor response of the building 2 stored by the floor response storage unit 26 with respect to the position of the vibration sensor 21 corresponding to the maximum value. The difference calculated here may be, for example, a difference or a ratio.

The building sway estimation unit 23 calculates a correction coefficient for the floor response of the building 2 from the calculated difference. The correction coefficient at the antinode portion where the vibration sensor 21 is arranged is, for example, a ratio of the maximum value obtained by the vibration sensor 21 to the floor response of the building 2. Here, the correction coefficient β ₁ Is position x ₁ The correction coefficient of (c). Correction coefficient beta ₂ Is position x ₂ The correction coefficient of (c). Correction coefficient beta ₃ Is position x ₃ The correction coefficient of (c). The building sway estimation unit 23 calculates a correction coefficient for the entire height of the building 2 by interpolating the correction coefficient at the antinode unit where the vibration sensor 21 is arranged. The building sway estimation unit 23 uses, for example, linear interpolation in the calculation of the correction coefficient. For example, with respect to the interval of height x (0,x) ₂ ) The building sway estimation unit 23 uses the sum of the values 1 of the correction coefficients at both ends of the sectionβ ₂ To perform linear interpolation. In addition, the interval (x) of the height x ₂ ,x ₃ ) The building sway estimation unit 23 uses the values β of the correction coefficients at both ends of the section ₂ And beta ₃ To perform linear interpolation. In addition, the interval (x) of the height x ₃ ,x ₁ ) The building sway estimation unit 23 uses the values β of the correction coefficients at both ends of the section ₃ And beta ₁ To perform linear interpolation.

The building sway estimation unit 23 calculates a value obtained by multiplying the correction coefficient calculated over the entire height range of the building 2 by the floor response of the building 2 stored in the floor response storage unit 26 in an overlapping manner. In fig. 13, the calculated values are shown by broken lines. The building sway estimation unit 23 estimates the sway of the building 2 from the calculated value.

As described above, the sway estimation system 1 according to embodiment 4 includes the floor response storage unit 26. The floor response storage unit 26 stores a floor response of the building 2 set in advance. The building sway estimation unit 23 estimates sway of the building 2 from the floor response of the building 2 stored in the floor response storage unit 26 and the respective maximum values of the detection values of the 1 st vibration sensor 21a and the 2 nd vibration sensor 21b.

In this configuration, the sway of the building 2 is estimated using information of the maximum value of the detection values of the respective vibration sensors 21. Therefore, even when the respective vibration sensors 21 are not synchronized in time, the sway of the building 2 can be estimated with high accuracy. Further, since the detection values of the respective vibration sensors 21 at the same timing are not required, the data capacity of the detection result of the vibration sensor 21 can be saved. Therefore, even when the storage capacity of the sway estimation system 1 is limited, the sway of the building 2 can be estimated with high accuracy.

The building sway estimation unit 23 calculates a difference between the floor response of the building 2 stored in the floor response storage unit 26 with respect to the position where each vibration sensor 21 is installed and the maximum value among the detection values of the vibration sensors 21 installed at the position. The building sway estimation unit 23 calculates a correction coefficient obtained by interpolating the difference calculated for the positions where the respective vibration sensors 21 are provided with respect to the position of the building 2. The building sway estimation unit 23 estimates sway of the building 2 using the result of multiplying the calculated correction coefficient by the floor response of the building 2 stored in the floor response storage unit 26.

In this configuration, the building sway estimation unit 23 may estimate the sway quantity at a position where the vibration sensor 21 is not provided from a known floor response by using the interpolated correction coefficient. Further, the building sway estimation unit 23 can estimate the sway of the building 2 using a simple and robust method such as linear interpolation.

Industrial applicability

The sway estimation system of the present invention can be applied to a building having a plurality of floors.

Description of the reference symbols

1: a shake estimation system; 2: a building; 3: an elevator; 4: a hoistway; 5: a machine room; 6: a traction machine; 7: a suspension body; 8: a deflector wheel; 9: a car; 10: a counterweight; 11: a control device; 12: a drive sheave; 13: a traction machine motor; 14: a traction machine brake; 15: a car guide rail; 16: a counterweight guide rail; 17: a car buffer; 18: a counterweight buffer; 19: a P-wave detector; 20: an S-wave detector; 21: a vibration sensor; 21a: 1 st vibration sensor; 21b: a 2 nd vibration sensor; 21c: a 3 rd vibration sensor; 22: a shake estimation device; 23: a building sway estimation unit; 24: an elevator sway estimation unit; 25: a weight coefficient storage unit; 26: a floor response storage unit; 100a: a processor; 100b: a memory; 200: dedicated hardware.

Claims

1. A shake estimation system, comprising:

a plurality of vibration sensors that are provided in a building and detect vibrations, respectively; and

a building sway estimating unit that estimates sway of the building from detection results of the plurality of vibration sensors,

the plurality of vibration sensors includes:

a 1 st vibration sensor provided in a 1 st antinode portion, the 1 st antinode portion being an antinode portion in a fundamental vibration mode of the building; and

and a 2 nd vibration sensor provided in a 2 nd antinode portion, the 2 nd antinode portion being a farthest antinode portion from the 1 st antinode portion among a plurality of antinode portions in the high-order vibration mode of the building which is a vibration mode of a higher order than the basic vibration mode.

2. The slosh estimation system according to claim 1,

the building sway estimation unit estimates components of a plurality of vibration modes of the building from detection results of the plurality of vibration sensors, and estimates a sway of the building using the estimated components.

3. The shake estimation system according to claim 2, wherein,

the building sway estimation unit estimates sway of the building from vibration detection values of the plurality of vibration sensors at a time when a maximum value of vibration is detected by at least any one of the plurality of vibration sensors.

4. The shake estimation system according to claim 2 or 3, wherein,

the building sway estimation unit estimates sway of the building for each of a plurality of time widths obtained by dividing a period in which the building sway occurs.

5. The shake estimation system according to claim 1, wherein,

the sway estimation system is provided with a floor response storage unit that stores a floor response of the building calculated in advance,

the building sway estimation unit estimates sway of the building from respective maximum values of the floor responses of the building stored in the floor response storage unit and the detection values of the 1 st vibration sensor and the 2 nd vibration sensor.

6. The shake estimation system according to claim 5, wherein,

the building sway estimation unit calculates a difference between the floor response of the building stored by the floor response storage unit for each of the positions where the plurality of vibration sensors are installed and a maximum value among detection values of the vibration sensors installed at the position among the plurality of vibration sensors, calculates a correction coefficient obtained by interpolating the calculated difference for each of the positions where the plurality of vibration sensors are installed with respect to the position of the building, and estimates sway of the building using a result obtained by multiplying the calculated correction coefficient by the floor response of the building stored by the floor response storage unit.

7. The shake estimation system according to any one of claims 1 to 6, wherein,

the sway estimation system is provided with an elevator sway estimation unit that estimates sway of an elevator device installed in the building from the sway of the building estimated by the building sway estimation unit.

8. The shake estimation system according to any one of claims 2 to 4, wherein the shake estimation system is provided with:

a weight coefficient storage unit that stores weight coefficients preset in association with a plurality of vibration patterns of the building, respectively; and

and an elevator sway estimating unit that estimates sway of elevator equipment installed in the building using a result of multiplying the weight coefficient stored in the weight coefficient storage unit by the component of each of the plurality of vibration modes of the building estimated by the building sway estimating unit.

9. The slosh estimation system according to any one of claims 1 to 8, wherein,

the plurality of vibration sensors include a 3 rd vibration sensor, and the 3 rd vibration sensor is provided in a 3 rd antinode portion, and the 3 rd antinode portion is a most distant and closest antinode portion from a closest one of the 1 st antinode portion and the 2 nd antinode portion among the plurality of antinode portions in a vibration mode of higher order than the higher order vibration mode.