WO2022050552A1

WO2022050552A1 - Apparatus for monitoring seismic isolation device

Info

Publication number: WO2022050552A1
Application number: PCT/KR2021/008613
Authority: WO
Inventors: 정득영
Original assignee: (주)엔타이어세이프
Priority date: 2020-09-01
Filing date: 2021-07-06
Publication date: 2022-03-10
Also published as: KR102398492B1; KR20220029126A

Abstract

The present invention relates to an apparatus for monitoring a seismic isolation device and, more specifically, to an apparatus for monitoring a seismic isolation device, the apparatus comprising a seismic isolation device, a displacement measuring device, a signal processing device, and a management device, whereby a relative position change on a horizontal plane of an upper or lower portion of a seismic isolation device is accurately and precisely detected and formed into a database to manage/analyze a movement history of the seismic isolation device, while also managing/analyzing a movement history of the seismic isolation device, a manager is notified of movement history monitoring information so that it is possible to improve ease of management of a device and equipment in which securing safety is important during an earthquake and quickly respond to the earthquake. Furthermore, it is possible to simplify a device configuration therefor to allow reduction of costs in manufacture/installation and improvement in device durability.

Description

seismic isolator monitoring device

The present invention relates to a device for monitoring a seismic isolator, and more specifically, by accurately and precisely detecting a change in relative position on a horizontal plane of upper and lower parts of the seismic isolator and converting it into a database, it is possible to manage/analyze the motion history of the seismic isolator, and to communicate Equipment (exchanger, relay device, distribution device, base station transmission/reception device, etc.), power supply equipment (water substation, rectifier, spare power supply equipment, emergency generator, etc.), floor equipment (raised flooring, etc.) It becomes possible to manage/analyze the motion history of the seismic isolator applied to the same small object, and by notifying the manager of the motion history monitoring information, the ease of management of facilities and devices that are important to secure safety during earthquakes is improved, and rapid response to earthquakes is possible. The present invention relates to a seismic isolator monitoring device capable of reducing manufacturing/installation costs and improving device durability by simplifying the device configuration for this purpose.

As earthquakes occur frequently at home and abroad, interest in strengthening earthquake safety has increased, and seismic isolators that can reduce earthquake damage to various mechanical and electrical facilities are being developed. A seismic isolator is a device that minimizes the direct transmission of seismic force to a facility by using the characteristic of being very rigid in the vertical direction and flexible in the horizontal direction. The seismic isolator as described above has recently been widely used in semiconductor factories and data centers, and is applied to the protection of exhibits such as art galleries and museums.

The seismic isolator as described above may cause safety problems when an earthquake exceeding the design criteria occurs. According to the damage case of the Great East Japan Earthquake that occurred in 2011, displacement beyond the limit that the seismic isolator can realize occurred, causing a problem in which the payload was overturned on the upper part of the seismic isolator. has also occurred. Therefore, in order to secure the safety and functional continuity of the upper mounted object of the seismic isolator, it is required to prepare a plan for measuring and managing the position change of the seismic isolator, that is, the motion history in real time.

In relation to the technology applicable to the measurement, monitoring, and management of the dynamic behavior of the seismic isolator, Republic of Korea Patent Publication No. 10-1695323 "Movement measuring device for measuring the displacement of a bridge during safety diagnosis of a bridge", Registration No. No. 10-1635904 "Seismic isolator equipped with an improved displacement measurement system and a smart maintenance management system for a seismic isolator using a short-range wireless communication module", Registration No. 10-1551195 "Earthquake monitoring and diagnosis system for switchboards using a displacement sensor" , Registration No. 10-1522194 "Displacement measuring system for superstructure of bridges", etc. have been devised.

The "movement amount measuring device for measuring the displacement of the seat device during bridge safety diagnosis" is a technology that allows the measurement by the indicator member fixed on the upper part where the relative displacement occurs by placing the measurer in a fixed and reference position, and the " A seismic isolator equipped with an improved displacement measuring system and a smart maintenance system for a seismic isolator using a short-distance wireless communication module" are provided with plates on the upper and lower parts of the seismic isolator, respectively, and a reference point is marked at one point to control the amount of movement of the seismic isolator. It is a measurement technique.

However, in the case of such a prior art, there is a disadvantage that it can be used only for the purpose of measuring the amount of movement of the seismic isolator in a statically deformed or stationary state.

The "seismic monitoring and diagnosis system of switchboard using displacement sensor" is a technology that detects the vibration of a mounted device using a small displacement sensor to determine the occurrence of an earthquake. There was a disadvantage that the amount of deformation of the could not be measured.

The "displacement measurement system for the upper structure of a bridge" is a technology that can measure the relative displacement of the upper and lower parts of the bridge with respect to the seismic isolating bearing through the external measuring frame, and it is difficult to apply when a small seismic isolator is introduced. There was a disadvantage that strain measurement was possible only in the throttle direction.

Therefore, the present invention is a new type of seismic isolator capable of managing/analyzing the motion history of the seismic isolator by correcting and precisely detecting the relative position change on the horizontal plane of the upper and lower parts of the seismic isolator and converting it into a database by improving the problems of the prior art. An object of the present invention is to provide a monitoring device.

In addition, the present invention provides communication equipment (exchanger, relay device, distribution device, base station transmission/reception device, etc.), power supply equipment (water substation device, rectifier, spare power supply equipment, emergency generator, etc.), floor equipment (double baru, etc.), art gallery/museum An object of the present invention is to provide a new type of seismic isolator monitoring device capable of managing/analyzing the motion history of a seismic isolator applied to a small object such as important collections such as.

In addition, the present invention provides a new type of seismic isolator monitoring device in which a displacement measuring device is disposed to detect the movement of the seismic isolator as an angle change, thereby simplifying the device configuration, reducing manufacturing/installation costs, and improving device durability. aim to do

Another object of the present invention is to provide a new type of seismic isolator monitoring device capable of providing motion history monitoring information in the event of an earthquake and of providing location change data measured by the seismic isolator to a manager.

According to a feature of the present invention for achieving the above object, the present invention is provided with a lower plate 120 connected to the bottom surface and an upper plate 110 connected to the seismic isolation object, the lower plate 120 and the upper a seismic isolator 100 performing a seismic isolating function through the seismic isolating unit 130 between the plates 110 ; Displacement in which a change in the relative position of the floor and the object to be isolated is detected as angle change data of the seismic isolator 100 by the seismic isolator 100 installed in conjunction with the seismic isolator 100 and operating in response to an excitation force measuring device 200; a signal processing device (300) connected to the displacement measuring device (200) to receive angle change data, and processing the seismic isolator motion history information through database and analysis of the angle change data; an exercise history management device 400 that controls and outputs the seismic isolator motion history information transmitted from the signal processing device 300; An object of the present invention is to provide a seismic isolator monitoring device comprising a.

In the seismic isolator monitoring device according to the present invention, the exercise history management device 400 includes: a storage module 410 for storing the seismic isolator exercise history information received from the signal processing device 300; an output module 420 for outputting the seismic isolator motion history information received from the signal processing device 300; a notification module 430 for notifying the manager of the seismic isolator motion history information received from the signal processing device 300; When an abnormal exercise numerical value is set, and an abnormal exercise numerical value is detected in the real-time tracking monitoring process of the motion history information of the seismic isolator, an abnormal alarm signal is generated and transmitted to the output module 420 and the notification module 430 for output and notification. Abnormality determination module 440 to be made; It is characterized in that it includes.

In the seismic isolator monitoring device according to the present invention, the displacement measuring device 200 includes two angle measuring devices 210A spaced apart and attached to the bottom surface of the upper plate 110; Two linear members 220 having one end rotatably connected to each of the angle measurers 210A, and the other end being disposed at a free end; a rotation hinge 230 that is rotatably fixed to the lower plate 120, the other end portion of each of the linear members 220 passes, and moves the linear members 220 in a position-constrained state; It is characterized in that it includes.

In the seismic isolator monitoring device according to the present invention, the displacement measuring device 200 is pin-coupled to the linear member 220 and the angle measuring device 210A, respectively, to connect the linear member 220 and the angle measuring device 210A. a linear member connecting piece 240 for connecting; It is characterized in that it further comprises.

In the seismic isolator monitoring device according to the present invention, the rotary hinge 230 has a through space 2310 through which the linear member 220 passes, and a first constraint piece ( 231); a second constraining piece 232 in which a through space 2320 through which the linear member 220 passes is formed so that one side of the linear member 220 is constrained; a fixing pin 233 for fixing the first constraining piece 231 and the second constraining piece 232 at the same time; It is characterized in that it includes.

According to the seismic isolator monitoring device according to the present invention, there is an effect of accurately and precisely detecting a change in the relative position of the upper and lower portions of the seismic isolator on a horizontal plane. In addition, the motion history of the seismic isolator is smoothly and easily managed/analyzed by making the detected relative position change on the horizontal plane of the upper and lower parts of the seismic isolator into a database and analyzing it.

In particular, according to the seismic isolator monitoring device according to the present invention, communication equipment (exchanger, relay device, distribution device, base station transmission/reception device, etc.), power supply equipment (water substation device, rectifier, spare power supply equipment, emergency generator, etc.), floor equipment ( It has the effect of managing/analyzing the motion history of the seismic isolator applied to a small object such as an important collection such as a double baru, etc.) or an art gallery/museum. And, according to the seismic isolator monitoring device according to the present invention, manufacturing/installation costs are reduced and the device durability is improved through a simplified device configuration.

In addition, according to the device for monitoring the seismic isolator according to the present invention, it is possible to remotely provide information on the safety status of the seismic isolator to an administrator by being connected to a wired or wireless network, and there is an effect that can be utilized to perform a quick response by the administrator.

1 is a block diagram of an apparatus for monitoring a seismic isolator according to an embodiment of the present invention;

2 is a block diagram of a seismic isolator according to an embodiment of the present invention.

3 is a block diagram of a seismic isolator monitoring device according to an embodiment of the present invention.

4 is a view for showing the position calculation of the displacement measuring device according to an embodiment of the present invention.

5 is a block diagram of a displacement measuring device according to an embodiment of the present invention.

6 is a block diagram of a displacement measuring device according to another embodiment of the present invention.

7A to 7D are diagrams for showing an output screen of an exercise history management apparatus according to an embodiment of the present invention.

8 is a block diagram of an exercise history management apparatus according to an embodiment of the present invention.

9 is a view showing the operation of the seismic isolator monitoring device according to the embodiment of the present invention.

10 is a side view of a seismic isolator monitoring device according to an embodiment of the present invention;

Hereinafter, an embodiment of the present invention will be described in detail with reference to the accompanying drawings 1 to 10. On the other hand, in the drawings and detailed description, drawings and descriptions of configurations and actions that can be easily recognized by those skilled in this field from general seismic isolators, rotary encoders, etc. are simplified or omitted. In particular, in the drawings and detailed descriptions, detailed descriptions and illustrations of specific technical configurations and actions of elements not directly related to the technical features of the present invention are omitted, and only the technical configurations related to the present invention are briefly illustrated or described. did

As shown in FIG. 1 , the seismic isolator monitoring device 1 according to the embodiment of the present invention includes a seismic isolator 100 , a displacement measuring device 200 , a signal processing device 300 , and an exercise history management device 400 . composed of

The seismic isolator 100 is disposed between the floor surface and the seismic isolating object to perform a seismic isolating function. It consists of a configuration including a fixed upper plate 110 and a lower plate 120 placed on the bottom surface. Components performing a substantial seismic isolation function may have various structures, and the seismic isolator 100 according to the embodiment of the present invention includes a plurality of upper and lower curved surfaces symmetrically disposed between the upper plate 110 and the lower plate 120 . A spherical seismic isolating ball disposed between the plate, the upper plate 110 and the lower plate 120 forms the seismic isolating unit 130 and has a device configuration that performs a substantial seismic isolating function. Here, the upper and lower curved plates have curved surfaces recessed in the center, and are respectively formed in the corners of the upper plate 110 and the lower plate 120 corresponding to each other. The seismic isolator ball has high strength, supports the weight of an object mounted on the upper part of the seismic isolator 100, and has low rigidity in the horizontal direction due to rolling motion. And when vibration occurs, the upper plate 110 and the lower plate 120 are horizontally moved by pendulum movement along the curved surface of the upper and lower curved plates, thereby performing the seismic isolation function.

The displacement measuring device 200 is installed to be interlocked with the seismic isolator 100. As shown in FIG. 4, the displacement measuring device 200 measures the relative position change between the floor surface and the seismic isolating object by the seismic isolator 100 that operates in response to the excitation force. It is detected as change data. Displacement measuring apparatus 200 according to an embodiment of the present invention may be composed of an angle measurer 210A, a linear member 220, a rotary hinge 230, and a linear member connecting piece 240, as shown in FIG.

The angle measurer 210A is fixed to the bottom surface of the upper plate 110 and protrudes upward and downward. And the change of the two interior angles of the triangle formed by the linear member 220 and the rotary hinge 230 is measured.

The linear member 220 is connected to the angle measurer 210A, and two are arranged crosswise so as to be movable between the upper plate 110 and the lower plate 120 .

The rotary hinge 230 is installed in the center of the vibration isolator 100 and fixed to the upper surface of the lower plate 120 . Two rotary hinges 230 are crossed around the fixing pin 233 , and the linear member 220 is each caught and fixed to one rotary hinge 230 . The rotary hinge 230 according to an embodiment of the present invention may include a first constraining piece 231 , a second constraining piece 232 , and a fixing pin 233 .

The first constraining piece 231 has a through space 2310 through which the linear member 220 passes and constrains the linear member 220 on one side.

The second constraining piece 232 has a through space 2320 through which the linear member 220 passes and constrains the linear member 220 on one side.

The fixing pin 233 is a pin provided to simultaneously fix the first constraining piece 231 and the second constraining piece 232 .

The linear member connecting piece 240 is pin-coupled to the linear member 220 and the angle measuring device 210A, respectively, and connecting the linear member 220 and the angle measuring device 210A.

Here, since the angle measurer 210A attached to the upper plate 110 and the rotary hinge 230 attached to the lower plate 120 are rotatable in the installation position, they always form a triangle by the linear member 220 .

Here, the displacement measuring device 200 includes two angle measuring devices 210A installed spaced apart by H from the center of the upper plate 110 at an arbitrary distance L, and collecting from this angle measuring device 210A to the signal processing device 300 . By substituting the transmitted angle data θA and θB into the following equations, the position in the arbitrary coordinate system inside the seismic isolator 100 can be calculated.

Displacement measuring apparatus 200 according to another embodiment of the present invention may be composed of a rotary encoder 210B, a linear member 220, and a rotary hinge 230, as shown in FIG.

The rotary encoder 210B is fixed to the bottom surface of the upper plate 110 and protrudes upward and downward. This is output as a modulated signal for transmitting a value corresponding to 0° to 360°. That is, 360° is divided at a constant rate based on the 0° point of the rotation axis, and a recognizable electric digital code is designated for each divided angle. And the rotation angle is detected by outputting a designated digital code according to the rotation angle of the rotation shaft.

The linear member 220 is connected to the rotary encoder 210B, and two are arranged crosswise so as to be movable between the upper plate 110 and the lower plate 120 . In the initial static equilibrium state, with the reference value between the linear member 220 and the rotary encoder 210B, as the linear member 220 flows in one direction according to external vibration, the reference value changes to output a value corresponding to the displacement.

The rotary hinge 230 is installed in the center of the vibration isolator 100 and fixed to the upper surface of the lower plate 120 . Two rotary hinges 230 are crossed around the pin, and the linear member 220 is each caught and fixed to one rotary hinge.

The signal processing device 300 is installed to be interlocked with the displacement measuring device 200, receives angle change data, and performs database and analysis on the seismic isolator angle change data to process motion history information of the seismic isolator. . That is, the angle change data transmitted from the displacement measuring device 200 is converted into displacement data.

The exercise history management device 400 controls and outputs the seismic isolator exercise history information transmitted from the signal processing device 300 . The detection signal for the converted displacement data is received, and real-time displacement data and motion history of the seismic isolator 100 are calculated and output. In addition, it is possible to remotely provide information on the safety state of the seismic isolator 100 to an administrator by being connected to a wired or wireless network. In addition, the exercise history management device 400 can confirm the safety of the seismic isolator 100 in the normal state as shown in FIG. 7A , and can confirm the initial displacement occurrence state as shown in FIG. 7B , as shown in FIG. 7C . You can check the city monitoring status. In addition, various settings can be changed using the configuration menu as shown in FIG. 7D . The exercise history management apparatus 400 according to an embodiment of the present invention includes a storage module 410 , an output module 420 , a notification module 430 , and an abnormality determination module 440 as shown in FIG. 8 .

The storage module 410 stores the seismic isolating device motion history information received from the seismic isolating signal processing device 300 when it is greater than or equal to a set value. At this time, the motion history information of the seismic isolator can be used as displacement data to evaluate the safety of equipment mounted on the seismic isolator 100 and to determine whether maintenance is necessary or not.

The output module 420 outputs when the seismic isolator motion history information received from the signal processing device 300 is equal to or greater than a set value.

The notification module 430 notifies the manager when the seismic isolator motion history information received from the signal processing device 300 is equal to or greater than a set value.

The abnormality determination module 440 transmits the abnormal alarm signal to the output module 420 and the notification module 430 so that output and notification are made. That is, when the abnormal motion numeric value is set and the abnormal motion numeric value is detected in the real-time tracking monitoring process of the motion history information of the seismic isolator, an abnormal alarm signal is generated and transmitted to the output module 420 and the notification module 430 .

The seismic isolator monitoring device according to the embodiment of the present invention configured as described above accurately and precisely detects the relative position change on the horizontal plane of the upper and lower parts of the seismic isolator and converts it into a database, so that the motion history of the seismic isolator can be managed/analyzed. In addition, the seismic isolator dynamic behavior recording system according to the embodiment of the present invention includes communication equipment (exchanger, relay device, distribution device, base station transmission/reception device, etc.), power supply equipment (water substation device, rectifier, spare power supply equipment, emergency generator, etc.), It is also possible to manage/analyze the motion history of the seismic isolator applied to small objects such as floor equipment (double bar, etc.) and important collections such as art galleries/museums. In addition, in the seismic isolator monitoring device according to the embodiment of the present invention, a displacement measuring device is disposed to detect the motion of the seismic isolator according to the angle change data, thereby simplifying the device configuration, reducing manufacturing/installation costs, and increasing the device durability. make it possible to improve

As described above, although the seismic isolator monitoring device according to the embodiment of the present invention has been illustrated according to the above description and drawings, this is merely an example and various changes and modifications within the scope without departing from the technical spirit of the present invention It will be well understood by those skilled in the art that this is possible.

Claims

It has a lower plate 120 connected to the bottom surface and an upper plate 110 connected to the seismic isolation object, and performs a seismic isolation function through the seismic isolation unit 130 between the lower plate 120 and the upper plate 110 . a seismic isolator 100;

Displacement in which a change in the relative position of the floor and the object to be isolated is detected as angle change data of the seismic isolator 100 by the seismic isolator 100 installed in conjunction with the seismic isolator 100 and operating in response to an excitation force measuring device 200;

a signal processing device (300) connected to the displacement measuring device (200) to receive angle change data, and processing the seismic isolator motion history information through database and analysis of the angle change data; and

an exercise history management device 400 that controls and outputs the seismic isolator motion history information transmitted from the signal processing device 300;

A seismic isolator monitoring device comprising a.
The method of claim 1,

The exercise history management device 400,

a storage module 410 for storing the seismic isolator motion history information received from the signal processing device 300;

an output module 420 for outputting the seismic isolator motion history information received from the signal processing device 300;

a notification module 430 for notifying the manager of the seismic isolator motion history information received from the signal processing device 300; and

When an abnormal exercise numerical value is set, and an abnormal exercise numerical value is detected in the real-time tracking monitoring process of the motion history information of the seismic isolator, an abnormal alarm signal is generated and transmitted to the output module 420 and the notification module 430 for output and notification. Abnormality determination module 440 to be made;

A seismic isolator monitoring device comprising a.
The method of claim 1,

The displacement measuring device 200,

Two angle measurers 210A spaced apart and attached to the bottom surface of the upper plate 110;

Two linear members 220 having one end rotatably connected to each of the angle measurers 210A, and the other end being disposed at a free end; and

a rotation hinge 230 that is rotatably fixed to the lower plate 120, the other end portion of each of the linear members 220 passes, and moves the linear members 220 in a position-constrained state;

A seismic isolator monitoring device comprising a.
4. The method of claim 3,

The displacement measuring device 200,

The linear member 220 and the angle measurer (210A), respectively, is pin-coupled to a linear member connecting piece 240 for connecting the linear member 220 and the angle measurer (210A);

A seismic isolator monitoring device further comprising a.
4. The method of claim 3,

The rotary hinge 230 is

a first constraining piece 231 in which a through space 2310 through which the linear member 220 passes is formed so that one side of the linear member 220 is constrained;

a second constraining piece 232 in which a through space 2320 through which the linear member 220 passes is formed so that one side of the linear member 220 is constrained; and

a fixing pin 233 for fixing the first constraining piece 231 and the second constraining piece 232 at the same time;

A seismic isolator monitoring device comprising a.