Follow-up type three-dimensional moving deformation monitoring device and method

Abstract

The invention relates to the technical field of space deformation displacement monitoring of building structures and the like, in particular to a follow-up type three-dimensional moving deformation monitoring device and a follow-up type three-dimensional moving deformation monitoring method. A rotary connecting assembly of the follow-up three-dimensional moving deformation monitoring device is connected with a first connecting seat, a telescopic assembly is connected with a second connecting seat, and the telescopic assembly is connected with the second connecting seat through the rotary connecting assembly; the monitoring assembly is used for monitoring the telescopic amount of the telescopic assembly and the rotating angle of the telescopic assembly relative to the rotating connecting assembly. The first connecting base is used for being connected with one end, generating relative displacement or one deformed end, of a to-be-monitored structure, and the second connecting base is used for being connected with the other end, generating relative displacement or the other deformed end, of the to-be-monitored structure. The device can move along with a relative displacement or deformation part of a to-be-monitored structure, so that the three-dimensional deformation condition of the to-be-monitored structure can be accurately monitored in real time, and the application is not limited to the two fields by taking vibration isolation support and interlayer displacement angle monitoring as an example for explanation.

Description

Technical Field

[0001] The present invention relates to the technical field of spatial deformation and displacement monitoring of building structures, and in particular to a follow-up three-dimensional displacement monitoring device and method. Background Art

[0002] Seismic isolation devices are designed to meet seismic isolation requirements. They involve adding an isolation layer between the superstructure and the foundation, installing rubber bearings, and providing a flexible connection to the ground. This technology can offset approximately 80% of an earthquake's energy. Examples include laminated rubber bearings (also known as rubber bearings and sandwich rubber pads). These structural components have low horizontal stiffness but high vertical stiffness, can withstand large horizontal deformations, and can serve as part of a load-bearing system.

[0003] To understand the bearing's performance and post-earthquake damage over the long term, it's necessary to monitor the bearing's stress and deformation. Currently, research on bearing deformation is primarily conducted in laboratories, where displacement sensors and other measuring equipment are typically installed externally. However, these sensors are not installed with the bearing in engineering applications. Once the bearing is installed at the work site, monitoring its deformation remains challenging. Summary of the Invention

[0004] The purpose of the present invention includes providing a follow-up three-dimensional mobile deformation monitoring device and method, which can follow the structure to be monitored and thus can accurately monitor the three-dimensional deformation of the structure to be monitored in real time.

[0005] The embodiments of the present invention can be implemented as follows:

[0006] In a first aspect, the present invention provides a follow-up three-dimensional mobile deformation monitoring device, which includes a first connecting seat, a rotating connecting assembly, a telescopic assembly, a second connecting seat, and a monitoring assembly;

[0007] The first connecting seat and the second connecting seat are spaced apart, the rotating connecting assembly is connected to the first connecting seat, the telescopic assembly is connected to the second connecting seat, and the telescopic assembly is connected to the second connecting seat via the rotating connecting assembly;

[0008] The monitoring component is used to monitor the extension and contraction amount of the telescopic component and the rotation angle of the telescopic component relative to the rotating connection component;

[0009] The first connecting seat is used to connect to one end of the structure to be monitored that generates relative displacement or one end that is deformed, and the second connecting seat is used to connect to the other end of the structure to be monitored that generates relative displacement or the other end that is deformed.

[0010] In an optional embodiment, the telescopic assembly includes a sleeve rod and a movable rod; the sleeve rod is sleeved on the movable rod, and the movable rod and the sleeve rod are slidably connected; the sleeve rod is connected to the rotating connection assembly, and the movable rod is connected to the second connecting seat.

[0011] In an optional embodiment, the movable rod is hinged to the second connecting seat.

[0012] In an optional embodiment, the second connecting seat is configured with a ball and socket connection piece, and the end of the movable rod is configured with a ball head connection piece hinged to the ball and socket connection piece.

[0013] In an optional embodiment, a linear bearing movably connected to the movable rod is provided in the sleeve rod.

[0014] In an optional embodiment, the monitoring component includes a displacement sensor connected to the sleeve rod, and the displacement sensor is used to monitor the extension and contraction amount of the movable rod relative to the sleeve rod.

[0015] In an optional embodiment, the rotating connection assembly includes a cross connection joint, a first rotating joint and a second rotating joint;

[0016] The cross connection joint is configured with a first rotating connection portion and a second rotating connection portion; the first rotating joint is rotatably connected to the first rotating connection portion, and the second rotating joint is rotatably connected to the second rotating connection portion, and the axis of rotation of the first rotating joint relative to the first rotating connection portion is the first axis, and the axis of rotation of the second rotating joint relative to the second rotating connection portion is the second axis, and the first axis is perpendicular to the second axis; the first rotating joint is connected to the first connecting seat, and the second rotating joint is connected to the telescopic assembly;

[0017] The monitoring component includes a first angle sensor, which is used to monitor the rotation angle of the cross connection joint relative to the first rotation joint and the rotation angle of the second rotation joint relative to the cross connection joint.

[0018] In an optional embodiment, the rotary connection assembly includes a rotary connection platform and a movable table;

[0019] The rotating connecting platform is rotatably connected to the first connecting seat; the movable platform is rotatably connected to the rotating connecting platform, and the telescopic assembly is connected to the movable platform;

[0020] The rotation axis of the rotatable connecting platform relative to the first connecting seat is the third axis, the rotation axis of the movable platform relative to the rotatable connecting platform is the fourth axis, and the third axis is perpendicular to the fourth axis;

[0021] The monitoring component includes a second angle sensor and a third angle sensor. The second angle sensor is used to monitor the rotation of the rotating connection platform relative to the first connection seat, and the third angle sensor is used to monitor the rotation of the movable platform relative to the rotating connection platform.

[0022] In a second aspect, the present invention provides a follow-up three-dimensional motion deformation monitoring method, which is implemented using the above-mentioned follow-up three-dimensional motion deformation monitoring device, comprising:

[0023] receiving a telescopic signal output by the monitoring component indicating the telescopic amount of the telescopic component, and receiving an angle signal output by the monitoring component indicating the rotation angle of the telescopic component relative to the rotating connection component;

[0024] Establish a spatial coordinate system with the fixed point of the rotating connection component as the origin;

[0025] Calculate the deformation coordinates of the connection between the telescopic assembly and the second connecting seat based on the telescopic amount of the telescopic assembly and the rotation angle of the telescopic assembly relative to the rotating connecting assembly;

[0026] The initial coordinates of the connection between the telescopic assembly and the second connecting seat are compared with the deformation coordinates to determine the three-dimensional movement deformation or inter-story displacement angle of the structure to be monitored.

[0027] In an optional embodiment, the step of calculating the deformation coordinates of the connection between the telescopic assembly and the second connecting seat based on the telescopic amount of the telescopic assembly and the rotation angle of the telescopic assembly relative to the rotating connection assembly includes:

[0028] According to the telescopic amount of the telescopic assembly, determine the straight-line distance from the connection point between the telescopic assembly and the second connecting seat to the origin, and record it as L;

[0029] Determine the rotation angle of the cross connection joint relative to the first rotation joint according to the monitoring component, which is recorded as α, and determine the rotation angle of the second rotation joint relative to the cross connection joint, which is recorded as β;

[0030] According to the proposed spatial coordinate system, we get formula 1:

[0031] (Lcosγtanβ) 2 +(Lcosγtanα) 2 =(Lsinγ) 2 (1)

[0032] Arranging formula 1 yields:

[0033] (tanα) 2 +(tanβ) 2 =(tanγ) 2 (2)

[0034] The angle γ is obtained by formula 2. At this time, the coordinates of the connection between the telescopic component and the second connecting seat are x, y, and z, then:

[0035] x=Lcosγtanα(3)

[0036] y=Lcosγtanβ(4)

[0037] x=Lcosγ(5).

[0038] The beneficial effects of the follow-up three-dimensional mobile deformation monitoring device and method provided by the embodiments of the present invention include:

[0039] The follow-up three-dimensional mobile deformation monitoring device includes a first connecting seat, a rotating connecting assembly, a telescopic assembly, a second connecting seat and a monitoring assembly; the first connecting seat and the second connecting seat are spaced apart, the rotating connecting assembly is connected to the first connecting seat, the telescopic assembly is connected to the second connecting seat, and the telescopic assembly is connected to the second connecting seat via the rotating connecting assembly; the monitoring assembly is used to monitor the telescopic amount of the telescopic assembly and the rotation angle of the telescopic assembly relative to the rotating connecting assembly; wherein the first connecting seat is used to connect to one end of the structure to be monitored that generates relative displacement or one end that is deformed, and the second connecting seat is used to connect to the other end of the structure to be monitored that generates relative displacement or the other end that is deformed. The follow-up three-dimensional mobile deformation monitoring device can follow the structure to be monitored, thereby accurately monitoring the vertical and lateral deformation of the structure to be monitored in real time, and further monitoring the three-dimensional deformation of the structure to be monitored in real time. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0041] Figure 1 A schematic structural diagram of the follow-up three-dimensional mobile deformation monitoring device provided in this embodiment;

[0042] Figure 2 An exploded schematic diagram of the follow-up three-dimensional mobile deformation monitoring device provided in this embodiment;

[0043] Figure 3 A schematic diagram of the installation of the follow-up three-dimensional mobile deformation monitoring device provided in this embodiment;

[0044] Figure 4 A schematic structural diagram of a ball and socket connector and a ball head connector provided in this embodiment;

[0045] Figure 5 An exploded schematic diagram of the rotary connection assembly provided in this embodiment;

[0046] Figure 6 A schematic structural diagram of a rotary connection assembly provided in another embodiment of the present invention;

[0047] Figure 7 The spatial coordinate system provided in this embodiment is established with the fixed point of the rotating connection component as the origin.

[0048] Icons: 100- follow-up three-dimensional mobile deformation monitoring device; 110- first connecting seat; 120- rotating connecting assembly; 130- telescopic assembly; 140- second connecting seat; 200- isolation layer; 300- seismic isolation device; 131- sleeve rod; 132- movable rod; 141- ball and socket connector; 133- ball head connector; 121- cross connecting joint; 122- first rotating joint; 123- second rotating joint; 124- first rotating connection part; 125- second rotating connection part; 126- rotating connection platform; 127- movable platform. DETAILED DESCRIPTION

[0049] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0050] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention as claimed, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort are intended to fall within the scope of protection of the present invention.

[0051] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0052] In the description of the present invention, it should be noted that if the terms "upper", "lower", "inside", "outside", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the accompanying drawings, or is the orientation or position relationship in which the product of the invention is usually placed when in use. It is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be understood as a limitation on the present invention.

[0053] In addition, the terms "first", "second", etc., if used, are merely used to distinguish and describe, and should not be understood as indicating or implying relative importance.

[0054] It should be noted that, in the absence of conflict, the features in the embodiments of the present invention may be combined with each other.

[0055] The seismic isolation device 300 is a structural support device designed to achieve seismic isolation requirements. It incorporates an isolation layer 200 between the superstructure and the foundation, along with rubber bearings, creating a flexible connection to the ground. This technology can offset approximately 80% of an earthquake's energy. Examples include laminated rubber bearings (also known as rubber bearings and sandwich rubber pads). These structural components have low horizontal stiffness but high vertical stiffness, can withstand large horizontal deformations, and can serve as part of a load-bearing system.

[0056] Under normal circumstances, seismic isolation rubber bearings (hereinafter referred to as "bearings") are subject to vertical pressure. When an earthquake occurs, due to ground movement, the bearings are simultaneously subjected to vertical pressure or tension, as well as horizontal shear force. At this time, in addition to vertical compression or tensile deformation, the bearings are also subjected to horizontal shear deformation. Generally, the service life of the bearings is the same as the life of the building structure. In order to understand the performance of the bearings and the damage after an earthquake during long-term use, it is necessary to monitor the force and deformation of the bearings. At present, research on bearing deformation is basically completed in the laboratory. In the laboratory, displacement sensors and other measuring equipment are usually installed on the outside of the bearings. However, they cannot be installed and used together with the bearings in engineering applications. Once the bearings are installed at the work site, monitoring the deformation of the bearings is still difficult.

[0057] For the reasons above, please refer to Figure 1-Figure 3 This embodiment provides a follow-up three-dimensional mobile deformation monitoring device 100, which includes a first connecting base 110, a rotating connecting component 120, a telescopic component 130, a second connecting base 140 and a monitoring component;

[0058] The first connecting seat 110 and the second connecting seat 140 are spaced apart, the rotating connecting assembly 120 is connected to the first connecting seat 110, the telescopic assembly 130 is connected to the second connecting seat 140, and the telescopic assembly 130 is connected to the second connecting seat 140 via the rotating connecting assembly 120;

[0059] The monitoring component is used to monitor the extension and contraction amount of the telescopic component 130 and the rotation angle of the telescopic component 130 relative to the rotating connection component 120;

[0060] The first connection seat 110 is used to connect with the lower part of the seismic isolation layer 200 , and the second connection seat 140 is used to connect with the upper part of the seismic isolation layer 200 . The seismic isolation layer 200 is installed with a seismic isolation device 300 .

[0061] The working principle of the follow-up three-dimensional mobile deformation monitoring device 100 is:

[0062] The follow-up three-dimensional mobile deformation monitoring device 100 includes a first connecting seat 110, a rotating connecting assembly 120, a telescopic assembly 130, a second connecting seat 140 and a monitoring assembly; the first connecting seat 110 and the second connecting seat 140 are arranged at intervals, the rotating connecting assembly 120 is connected to the first connecting seat 110, the telescopic assembly 130 is connected to the second connecting seat 140, and the telescopic assembly 130 is connected to the second connecting seat 140 through the rotating connecting assembly 120; the monitoring assembly is used to monitor the telescopic amount of the telescopic assembly 130, and the rotation angle of the telescopic assembly 130 relative to the rotating connecting assembly 120; wherein, the first connecting seat 110 is used to connect to the lower part of the isolation layer 200, the second connecting seat 140 is used to connect to the upper part of the isolation layer 200, and the isolation layer 200 is installed with a seismic isolation device 300.

[0063] It should be noted that in this embodiment, when installing the follow-up three-dimensional mobile deformation monitoring device 100, a first connecting base 110 is used to connect to the lower part of the isolation layer 200, and a second connecting base 140 is used to connect to the upper part of the isolation layer 200. The purpose is to be able to follow the vibration reduction and isolation device 300 in the isolation layer 200.

[0064] On this basis, the first connecting seat 110 can be connected to the lower part of the seismic isolation layer 200 by directly connecting the first connecting seat 110 to the lower part of the seismic isolation layer 200, or by connecting the first connecting seat 110 to the lower part of the seismic isolation layer 200 through the part connected to the seismic isolation device 300, thereby indirectly connecting to the lower part of the seismic isolation layer 200; similarly, the second connecting seat 140 can be connected to the upper part of the seismic isolation layer 200 by directly connecting the second connecting seat 140 to the upper part of the seismic isolation layer 200, or by connecting the second connecting seat 140 to the upper part of the seismic isolation layer 200 through the part connected to the seismic isolation device 300, thereby indirectly connecting to the upper part of the seismic isolation layer 200; that is, according to the above content, it can be known that the first connecting portion and the second connecting portion can be connected to the lower part and the upper part of the seismic isolation layer 200 directly or indirectly, and both methods can achieve tracking with the seismic isolation device 300 in the same seismic isolation layer 200;

[0065] Furthermore, as can be seen from the above, the first connecting seat 110 and the second connecting seat 140 of the follow-up three-dimensional mobile deformation monitoring device 100 are respectively connected to the lower part of the seismic isolation layer 200 and the upper part of the seismic isolation layer 200. Therefore, when the upper part and the lower part of the seismic isolation layer 200 generate relative movement and cause the seismic isolation device 300 to deform, the follow-up three-dimensional mobile deformation monitoring device 100 can be driven to follow, thereby monitoring the deformation of the seismic isolation device 300.

[0066] Since the seismic isolation device 300 is subjected to vertical tensile force and horizontal shear force when subjected to force, it is also subjected to horizontal shear deformation in addition to vertical compression or tension deformation.

[0067] Based on this, the follow-up three-dimensional mobile deformation monitoring device 100 is configured with a telescopic component 130 and a rotating connection component 120. Its purpose is to be able to form a vertical displacement and a lateral offset in the process of monitoring its force through the telescopic component 130 and the rotating connection component 120, so that it can follow the vibration isolation device 300 being tested. Moreover, through this arrangement, the deformation of the vibration isolation device 300 in the vertical and lateral directions can be monitored.

[0068] In summary, the follow-up three-dimensional mobile deformation monitoring device 100 can follow the vibration isolation device 300, and thus can accurately monitor the vertical deformation and lateral deformation of the vibration isolation device 300 in real time, and thus can monitor the three-dimensional deformation of the vibration isolation device 300 in real time.

[0069] It should be noted that, this specification is described by taking the application of the follow-up three-dimensional mobile deformation monitoring device 100 to seismic isolation bearings and inter-story displacement angle monitoring as an example, that is, the structure to be monitored can be the seismic isolation device 300 or the monitored floor, but its application is not limited to these two fields; specifically, in this embodiment, the application of the follow-up three-dimensional mobile deformation monitoring device 100 to deformation monitoring of the seismic isolation device 300 is described as an example, that is, the first connecting seat 110 is used to connect to one end of the structure to be monitored that generates relative displacement or one end that is deformed (that is, the lower part of the seismic isolation layer 200), and the second connecting seat 140 is used to connect to the other end of the structure to be monitored that generates relative displacement or the other end that is deformed (that is, the upper part of the seismic isolation layer 200);

[0070] However, in other embodiments of the present invention, it can also be applied to the inter-story displacement angle monitoring of floors, that is, the first connecting base 110 is used to connect to one end of the structure to be monitored that generates relative displacement or one end of the deformation (that is, the upper floor of the monitored floor), and the second connecting base 140 is used to connect to the other end of the structure to be monitored that generates relative displacement or the other end of the deformation (that is, the lower floor of the monitored floor);

[0071] Among them, the inter-story displacement angle refers to the ratio of the maximum horizontal displacement between floors under the action of wind load or multiple earthquake standard value calculated by the elastic method to the floor height Δu / h. The Δu / h of the i-th floor refers to the maximum value of the displacement difference ΔUi=Ui-Ui-1 between the i-th floor and the i-1-th floor at each point on the floor plane. It is used to ensure the stiffness that high-rise structures should have. It is a macro-control indicator of the cross-sectional size and stiffness of the components. Its main purpose is to limit the horizontal displacement of the structure under normal use conditions, ensure the stiffness that high-rise structures should have, and avoid excessive displacement that affects the bearing capacity, stability and use requirements of the structure.

[0072] When the follow-up three-dimensional mobile deformation monitoring device 100 is used for inter-story displacement angle monitoring, its working principle is the same as the deformation monitoring principle applied to the above-mentioned seismic isolation device 300. The difference is that during the installation process, the first connecting seat 110 is connected to the upper floor slab of the monitored floor, and the second connecting seat 140 is used to connect to the lower floor slab of the monitored floor.

[0073] For further information, please refer to Figures 1-4 In this embodiment, the telescopic assembly 130 is configured to function as a vertical follower through its telescopic movement when subjected to a vertical force, and to adapt to the deflection and extension of the lateral displacement when it occurs. Specifically, the telescopic assembly 130 includes a sleeve rod 131 and a movable rod 132. The sleeve rod 131 is sleeved on the movable rod 132, and the movable rod 132 is slidably connected to the sleeve rod 131. The sleeve rod 131 is connected to the rotating connection assembly 120, and the movable rod 132 is connected to the second connection seat 140. Furthermore, to enable the telescopic assembly 130 to adapt to the displacement, that is, to generate lateral deflection when subjected to lateral shear stress, the telescopic assembly 130 will generate a certain amount of telescopic expansion and contraction, and thus deflect. Based on the connection of one end to the rotating connection assembly 120, the other end of the telescopic assembly 130 can be hinged to the second connection seat 140, that is, the movable rod 132 can be hinged to the second connection seat 140.

[0074] When hingedly connected to the second connecting base 140, this embodiment uses a ball-and-socket connection 141 configured on the second connecting base 140, and a ball-and-socket connection 133 hingedly connected to the ball-and-socket connection 141 configured on the end of the movable rod 132. It should be noted that this arrangement is only one of many hinged connection methods, and other types of structures, such as universal joints, may also be used in other embodiments of the present invention.

[0075] In order to improve the stability of the movable rod 132 in sliding and extending relative to the sleeve rod 131 , a linear bearing movably connected to the movable rod 132 is provided in the sleeve rod 131 .

[0076] Based on this, on the basis of the structure of the above-mentioned telescopic component 130, in order to enable the monitoring component to monitor its telescopic amount, the monitoring component includes a displacement sensor connected to the sleeve rod 131, and the displacement sensor is used to monitor the telescopic amount of the movable rod 132 relative to the sleeve rod 131.

[0077] Based on the structure of the telescopic assembly 130, please refer to Figure 1-Figure 5 In this embodiment, when configuring the rotating connection assembly 120, the rotating connection assembly 120 includes a cross connection joint 121, a first rotating joint 122 and a second rotating joint 123;

[0078] The cross joint 121 is configured with a first rotating connection portion 124 and a second rotating connection portion 125 ; the first rotating joint 122 is rotatably connected to the first rotating connection portion 124 , and the second rotating joint 123 is rotatably connected to the second rotating connection portion 125 . The axis of rotation of the first rotating joint 122 relative to the first rotating connection portion 124 is a first axis, and the axis of rotation of the second rotating joint 123 relative to the second rotating connection portion 125 is a second axis. The first axis and the second axis are perpendicular.

[0079] The first rotating joint 122 is connected to the first connecting seat 110 , and the second rotating joint 123 is connected to the telescopic assembly 130 .

[0080] Through the above-mentioned structural setting, the second connecting joint can rotate relative to the cross connecting joint 121, and the cross connecting joint 121 can rotate relative to the first rotating joint 122. The rotation axis of the aforementioned second rotating joint 123 is perpendicular to the rotation axis of the cross connecting joint 121. Based on this, when the device follows the shock-absorbing and isolating device 300, it can adapt to different lateral shear force directions, thereby meeting its following needs, and then being able to monitor its deformation offset in real time and accurately.

[0081] In order to enable the monitoring component to monitor the rotation angle of the rotating connection component 120, the monitoring component includes a first angle sensor, which is used to monitor the rotation angle of the cross connection joint 121 relative to the first rotating joint 122 and the rotation angle of the second rotating joint 123 relative to the cross connection joint 121.

[0082] Based on the structure of the telescopic assembly 130, please refer to Figure 6 , and combined with Figure 1-Figure 5 , which is different from the above-mentioned arrangement of the rotating connection assembly 120 , the rotating connection assembly 120 may further include a rotating connection platform 126 and a movable platform 127 ;

[0083] The rotatable connecting platform 126 is rotatably connected to the first connecting base 110; the movable platform 127 is rotatably connected to the rotatable connecting platform 126, and the telescopic assembly 130 is connected to the movable platform;

[0084] The rotation axis of the rotatable connecting platform 126 relative to the first connecting base 110 is the third axis, and the rotation axis of the movable platform 127 relative to the rotatable connecting platform 126 is the fourth axis. The third axis is perpendicular to the fourth axis.

[0085] The monitoring component includes a second angle sensor and a third angle sensor. The second angle sensor is used to monitor the rotation of the rotating connection platform relative to the first connection seat, and the third angle sensor is used to monitor the rotation of the movable platform relative to the rotating connection platform.

[0086] Through the above-mentioned structural setting, the rotating connecting platform 126 can rotate relative to the first connecting seat 110, and the movable platform 127 can rotate relative to the rotating connecting platform 126, and the aforementioned rotation axes are perpendicular to each other. Based on this, when the device follows the shock-absorbing and isolating device 300, it can adapt to different lateral shear force directions, thereby meeting its following needs, and then being able to monitor its deformation offset in real time and accurately.

[0087] It should be noted that, from the above content, the monitoring component can include the above-mentioned displacement sensor, the first angle sensor, the second angle sensor and the third angle sensor, and its function is to realize linear displacement monitoring and angle detection. Therefore, it can adopt the sensor structure in the existing technology, and its specific structure will not be repeated here.

[0088] Based on the above, please refer to Figure 1-Figure 7 This embodiment further provides a method for monitoring the three-dimensional movement deformation of a follow-up type vibration isolation device 300, which is implemented using the above-mentioned follow-up type three-dimensional movement deformation monitoring device 100, including:

[0089] receiving a telescopic signal outputted by the monitoring component indicating the telescopic amount of the telescopic component 130 and receiving an angle signal outputted by the monitoring component indicating the rotation angle of the telescopic component 130 relative to the rotating connection component 120;

[0090] A spatial coordinate system (e.g., Figure 7 shown);

[0091] Calculate the deformation coordinates of the connection between the telescopic assembly 130 and the second connecting seat 140 based on the telescopic amount of the telescopic assembly 130 and the rotation angle of the telescopic assembly 130 relative to the rotating connecting assembly 120;

[0092] The initial coordinates and deformation coordinates of the connection between the telescopic assembly 130 and the second connecting seat 140 are compared to determine the three-dimensional movement deformation of the structure to be monitored (i.e., the structure to be monitored is the seismic isolation device 300) or the inter-story displacement angle (i.e., the structure to be monitored is the monitored floor).

[0093] Based on the above content, it can be seen that the three-dimensional movement deformation monitoring method of the follow-up type seismic isolation device 300 can be used to perform follow-up monitoring of the seismic isolation device 300 or the monitored floor in the same seismic isolation layer 200 through the above-mentioned follow-up type three-dimensional movement deformation monitoring device 100. Specifically, its principle is as follows:

[0094] The above-mentioned follow-up three-dimensional mobile deformation monitoring device 100 can follow the monitored seismic isolation device 300, thereby being able to monitor its vertical and lateral displacements. On this basis, according to the monitoring component's monitoring of the telescopic component 130 and the rotating connection component 120, the parameters obtained are the telescopic amount of the telescopic component 130 and the rotation angle of the rotating component. Since the rotating connection component 120 has at least two rotation axes, the rotation angle data collected is at least two.

[0095] On this basis, a coordinate system can be established with the fixed point in the rotating connection component 120 as the origin. The fixed point can be the intersection of the two rotation axes of the rotating connection component 120, or other locations. If it is the intersection of the rotation axes, the relevant compensation value needs to be substituted in the subsequent calculation of its offset.

[0096] Then, the obtained telescopic amount of the telescopic component 130 and the rotation angle of the rotating component are substituted into the established coordinate system, and the spatial coordinates of the end of the telescopic component 130 away from the origin can be obtained based on the relevant calculation formula. It should be noted that the end of the telescopic component 130 away from the origin refers to the coordinates of the connection between the telescopic component 130 and the second connecting seat 140, and before starting the follow-up monitoring, the initial coordinates of the point need to be measured so that after starting the follow-up monitoring, the obtained follow-up monitoring coordinates can be compared with its initial coordinates, so that its deformation can be evaluated.

[0097] Furthermore, in this embodiment, the step of calculating the deformation coordinates of the connection between the telescopic assembly 130 and the second connecting seat 140 based on the telescopic amount of the telescopic assembly 130 and the rotation angle of the telescopic assembly 130 relative to the rotating connection assembly 120 includes:

[0098] According to the extension amount of the telescopic assembly 130, determine the straight-line distance from the connection point between the telescopic assembly 130 and the second connecting seat 140 to the origin, and record it as L;

[0099] Determine the rotation angle of the cross connection joint 121 relative to the first rotation joint 122 according to the monitoring component, which is recorded as α, and determine the rotation angle of the second rotation joint 123 relative to the cross connection joint 121, which is recorded as β;

[0100] According to the proposed spatial coordinate system, we get formula 1:

[0101] (Lcosγtanβ) 2 +(Lcosγtanα) 2 =(Lsinγ) 2 (1)

[0102] Arranging formula 1 yields:

[0103] (tanα) 2 +(tanβ) 2 =(tanγ) 2 (2)

[0104] The angle γ is obtained by formula 2. At this time, the coordinates of the connection between the telescopic assembly 130 and the second connecting seat 140 are x, y, and z, then:

[0105] x=Lcosγtanα(3)

[0106] y=Lcosγtanβ(4)

[0107] z=Lcosγ(5).

[0108] The above are only specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or replacements that can be easily conceived by any technician familiar with this technical field within the technical scope disclosed by the present invention should be covered by the scope of protection of the present invention.

Claims

1. A follow-up three-dimensional mobile deformation monitoring device, characterized by: The follow-up three-dimensional mobile deformation monitoring device includes a first connecting seat, a rotating connecting component, a telescopic component, a second connecting seat and a monitoring component; The first connecting seat and the second connecting seat are spaced apart, the rotating connecting assembly is connected to the first connecting seat, the telescopic assembly is connected to the second connecting seat, and the telescopic assembly is connected to the second connecting seat via the rotating connecting assembly; The monitoring component is used to monitor the extension and contraction amount of the telescopic component and the rotation angle of the telescopic component relative to the rotating connection component; The first connecting seat is used to connect to one end of the structure to be monitored that generates relative displacement or one end that is deformed, and the second connecting seat is used to connect to the other end of the structure to be monitored that generates relative displacement or the other end that is deformed.

2. The follow-up three-dimensional deformation monitoring device according to claim 1, characterized in that: The telescopic assembly includes a sleeve rod and a movable rod; the sleeve rod is sleeved on the movable rod, and the movable rod and the sleeve rod are slidably connected; the sleeve rod is connected to the rotating connection assembly, and the movable rod is connected to the second connecting seat.

3. The follow-up three-dimensional deformation monitoring device according to claim 2, characterized in that: The movable rod is hinged to the second connecting seat.

4. The follow-up three-dimensional deformation monitoring device according to claim 3, characterized in that: The second connecting seat is provided with a ball-and-socket connecting piece, and the end of the movable rod is provided with a ball-head connecting piece hinged to the ball-and-socket connecting piece; or, the second connecting seat is hinged to the movable rod via a universal joint connecting piece.

5. The follow-up three-dimensional deformation monitoring device according to claim 2, characterized in that: A linear bearing movably connected to the movable rod is arranged in the sleeve rod.

6. The follow-up three-dimensional deformation monitoring device according to claim 5, characterized in that: The monitoring component includes a displacement sensor connected to the sleeve rod, and the displacement sensor is used to monitor the extension and contraction amount of the movable rod relative to the sleeve rod.

7. The follow-up three-dimensional deformation monitoring device according to any one of claims 1 to 6, characterized in that: The rotating connection assembly includes a cross connection joint, a first rotating joint and a second rotating joint; The cross connection joint is configured with a first rotating connection portion and a second rotating connection portion; the first rotating joint is rotatably connected to the first rotating connection portion, and the second rotating joint is rotatably connected to the second rotating connection portion, and the axis of rotation of the first rotating joint relative to the first rotating connection portion is a first axis, and the axis of rotation of the second rotating joint relative to the second rotating connection portion is a second axis, and the first axis is perpendicular to the second axis; the first rotating joint is connected to the first connecting seat, and the second rotating joint is connected to the telescopic assembly; The monitoring component includes a first angle sensor, and the first angle sensor is used to monitor the rotation angle of the cross connection joint relative to the first rotation joint and the rotation angle of the second rotation joint relative to the cross connection joint.

8. The follow-up three-dimensional deformation monitoring device according to any one of claims 1 to 6, characterized in that: The rotating connection assembly includes a rotating connection platform and a movable platform; The rotating connection platform is rotatably connected to the first connection seat; the movable platform is rotatably connected to the rotating connection platform, and the telescopic assembly is connected to the movable platform; The rotation axis of the rotating connection platform relative to the first connection seat is a third axis, the rotation axis of the movable platform relative to the rotating connection platform is a fourth axis, and the third axis is perpendicular to the fourth axis; The monitoring component includes a second angle sensor and a third angle sensor. The second angle sensor is used to monitor the rotation of the rotating connection platform relative to the first connection seat, and the third angle sensor is used to monitor the rotation of the movable platform relative to the rotating connection platform.

9. A follow-up three-dimensional deformation monitoring method, implemented using the follow-up three-dimensional deformation monitoring device according to any one of claims 1 to 8, characterized in that: include: receiving a telescopic signal output by the monitoring component indicating the telescopic amount of the telescopic component, and receiving an angle signal output by the monitoring component indicating the rotation angle of the telescopic component relative to the rotating connection component; Establishing a spatial coordinate system with the fixed point of the rotating connection component as the origin; Calculating the deformation coordinates of the connection between the telescopic assembly and the second connecting seat according to the telescopic amount of the telescopic assembly and the rotation angle of the telescopic assembly relative to the rotating connecting assembly; The initial coordinates of the connection between the telescopic assembly and the second connecting seat are compared with the deformation coordinates to determine the three-dimensional movement deformation or inter-story displacement angle of the structure to be monitored.

10. The follow-up three-dimensional deformation monitoring method according to claim 9, characterized in that: The step of calculating the deformation coordinates of the connection between the telescopic assembly and the second connecting seat according to the telescopic amount of the telescopic assembly and the rotation angle of the telescopic assembly relative to the rotating connecting assembly includes: According to the telescopic amount of the telescopic assembly, determine the straight-line distance from the connection point between the telescopic assembly and the second connecting seat to the origin, and record it as L; Determine the rotation angle of the cross connection joint relative to the first rotation joint according to the monitoring component, which is recorded as α, and determine the rotation angle of the second rotation joint relative to the cross connection joint, which is recorded as β; According to the proposed spatial coordinate system, we get Formula 1: (Lcosγtanβ) 2 +(Lcosγtanα) 2 =(Lsinγ) 2 (1) Arranging formula 1 yields: (tanα) 2 +(tanβ) 2 =(tanγ) 2 (2) The angle γ is obtained by formula 2. At this time, the coordinates of the connection between the telescopic assembly and the second connecting seat are x, y, and z, then: x=Lcosγtanα(3) y=Lcosγtanβ(4) 2=Lcosγ(5).

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