Spatial position multi-dimensional information measuring device and installation and use method thereof

Abstract

The application provides a spatial position multi-dimensional information measuring device and a mounting and using method thereof. The spatial position multi-dimensional information measuring device comprises a flexible light shield, an irradiation mechanism and a detection mechanism. The irradiation mechanism comprises a fixing part and a light source group. The fixing part is connected with the flexible light shield. The light source group is installed in the fixing part, and the irradiating direction of the light source group is towards the inside of the flexible light shield. The light source group comprises a first light source, a second light source and a third light source. The axis of the first light source is arranged along the Z-axis direction. The axis of the second light source is arranged at an angle with the axis of the first light source in the XZ plane. The axis of the third light source is arranged at an angle with the axis of the first light source in the YZ plane. The detection mechanism is connected with the flexible light shield and is arranged corresponding to the light source group, and is used for detecting the light emitted by the first light source, the second light source and the third light source. Compared with the prior art, the spatial position multi-dimensional information measuring device and the mounting and using method thereof can collect more data, and the data precision is high.

Description

Technical Field

[0001] This invention relates to the field of spatial position measurement technology, and in particular to a spatial position multidimensional information measurement device and its installation and usage method. Background Technology

[0002] Impact testing is a method for assessing the strength of equipment. Under strong impact conditions, it is generally required to install vibration isolators at the bottom of the equipment to absorb this energy. Therefore, studying the movement of the vibration isolators in space during the impact is crucial for optimizing the internal structure of the equipment using simulation methods while meeting strength requirements. A common method for measuring the deformation of the vibration isolator during the impact is to fill the upper and lower clamps of the isolator with moist clay. After the explosive impact, the clay is removed, dried, and then cut to measure the thinnest cross-section to roughly estimate the deformation of the upper and lower clamps of the isolator at the end of the impact.

[0003] Currently, there are many devices for testing the vertical distance of floating raft isolators to maintain the raft's level, but there are few for measuring the spatial position of the isolators during explosive impacts. For example, Chinese patent application CN110260807A discloses a calibration and usage method for a monitoring base for the spacing of marine floating raft isolators. This patent designs a magnetic base for fixing and installing a laser displacement sensor, which can easily measure the deformation of the damper. However, this device cannot meet the requirements for transient impacts when used in a quasi-static state. Chinese patent application CN113120206A discloses an airbag floating raft vibration isolation device for a ship's twin-engine, twin-propeller propulsion system. This patent sets multiple height sensors and multiple horizontal position sensors on the device. A controller is used to adjust the inflation amount of the airbag isolator based on the detection results of the height and horizontal position sensors, thereby adjusting the position of the raft frame to achieve synchronous centering attitude control of the two propulsion motors. This device can only acquire data in the horizontal and vertical directions, and cannot acquire data in other spatial dimensions of the raft frame.

[0004] Therefore, how to provide a measurement device to realize multi-dimensional data measurement is an urgent problem to be solved in this field. Summary of the Invention

[0005] To address the problems of limited data and low accuracy in existing impact data measurements, this invention provides a multi-dimensional spatial location information measurement device that can acquire more data with high accuracy.

[0006] A spatial location multidimensional information measurement device includes a flexible light shield, an illumination mechanism, and a detection mechanism;

[0007] The irradiation mechanism includes a fixing component and a light source assembly;

[0008] The fastener is connected to the flexible light shield;

[0009] The light source group is installed in the fixing member, and the illumination direction of the light source group is towards the inside of the flexible light shield;

[0010] The light source group includes a first light source, a second light source, and a third light source. The axis of the first light source is set along the Z-axis direction. The axis of the second light source is set at an angle to the axis of the first light source in the XZ plane. The axis of the third light source is set at an angle to the axis of the first light source in the YZ plane.

[0011] The detection mechanism is connected to the flexible light shield and is configured corresponding to the light source group to detect the light emitted by the first light source, the second light source, and the third light source.

[0012] Preferably, the angle between the axis of the second light source and the axis of the first light source in the XZ plane is the same as the angle between the axis of the third light source and the axis of the first light source in the YZ plane.

[0013] Preferably, the fixing component includes a fixing joint and a fixing seat;

[0014] The fixed joint is connected to the flexible light shield, and the fixed joint is detachably connected to the fixed base via a fastener;

[0015] The mounting bracket is used to bond and fix it to the device under test.

[0016] Preferably, the fixed joint includes a first joint, a second joint, and a third joint;

[0017] The first joint is connected to the flexible light shield, and a light source mounting hole is provided in the first joint;

[0018] The light source group is installed at the corresponding light source mounting hole;

[0019] The second joint is connected to the first joint and covers the light source mounting hole;

[0020] The third joint is connected to the second joint, and the third joint is detachably connected to the fixing seat via the fastener.

[0021] Preferably, the second joint is connected to the first joint via a first locating pin;

[0022] The first joint has a first threaded hole;

[0023] The second joint has a first countersunk hole corresponding to the position of the first threaded hole, and the diameter of the first countersunk hole is larger than the diameter of the first threaded hole.

[0024] The second joint is fastened to the first joint by a first screw, which is installed in the first countersunk hole and the first threaded hole.

[0025] Preferably, the first positioning pin is coaxially arranged with the first light source.

[0026] Preferably, the third joint is connected to the second joint via a second locating pin;

[0027] The third joint is provided with a second threaded hole;

[0028] The second joint has a second countersunk hole corresponding to the position of the second threaded hole, and the diameter of the second countersunk hole is larger than the diameter of the second threaded hole;

[0029] The third joint is fastened to the second joint by a second screw, which is installed in the second countersunk hole and the second threaded hole.

[0030] Preferably, the third joint is connected to the fixed seat via a third positioning pin, and the third joint is rotatable relative to the fixed seat about the third positioning pin as an axis;

[0031] The third positioning pin, the second positioning pin, and the first positioning pin are set perpendicularly to each other.

[0032] Preferably, the detection mechanism includes a fixed plate and a matrix sensor group;

[0033] The fixing plate is connected to the flexible light shield and is used to bond and fix it to the device under test;

[0034] The matrix sensor group is mounted on the fixed plate and is configured corresponding to the light source group.

[0035] A method for installing and using a spatial location multidimensional information measurement device includes the following steps:

[0036] S1. Assemble the spatial location multidimensional information measurement device as described in any one of the above-mentioned methods;

[0037] S2. Install the spatial location multidimensional information measurement device on the device to be measured;

[0038] S3. Perform an impact test on the device under test;

[0039] S4. The first light source, the second light source, and the third light source are turned on in sequence and cycled. The light emitted by the first light source, the second light source, and the third light source is detected by the detection mechanism, and the detection data is calculated.

[0040] Compared with existing technologies, the spatial position multidimensional information measurement device provided by this invention includes a flexible light shield, an illumination mechanism, and a detection mechanism. The illumination mechanism includes a fixing component and a light source group. The fixing component is connected to the flexible light shield. The light source group is installed in the fixing component, and the illumination direction of the light source group faces inward towards the flexible light shield. The light source group includes a first light source, a second light source, and a third light source. The axis of the first light source is arranged along the Z-axis, the axis of the second light source forms an angle with the axis of the first light source in the XZ plane, and the axis of the third light source forms an angle with the axis of the first light source in the YZ plane. The detection mechanism is connected to the flexible light shield and is arranged corresponding to the light source group to detect the light emitted by the first, second, and third light sources. The spatial position multidimensional information measurement device detects the light emitted by the light source group through the detection mechanism and obtains the corresponding data through calculation, which simplifies and improves the efficiency of data acquisition, and the acquired data has high accuracy. Furthermore, the spatial multidimensional position information of the device under test can be obtained by processing the acquired data with a single device. Attached Figure Description

[0041] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0042] Figure 1 A three-dimensional structural schematic diagram of a spatial location multidimensional information measurement device provided in one embodiment;

[0043] Figure 2 for Figure 1 The diagram shows the exploded structure of a spatial location multidimensional information measurement device.

[0044] Figure 3 for Figure 1 A three-dimensional structural diagram of the first joint shown;

[0045] Figure 4 for Figure 1 A three-dimensional structural diagram of the second joint shown;

[0046] Figure 5 for Figure 1 The exploded structural diagram of the third joint, the fixing buckle, and the fixing seat is shown.

[0047] Figure 6 for Figure 1 A cross-sectional structural diagram of the third joint, the fixing buckle, and the fixing seat is shown.

[0048] Figure 7 for Figure 1 The diagram shows the light structure principle of the light source group and detection mechanism in a certain position state in the multi-dimensional spatial position information measurement device shown.

[0049] Figure 8 for Figure 7 A magnified view of a portion of region M shown. Detailed Implementation

[0050] To enable those skilled in the art to better understand the technical solutions in this application, the technical solutions in the embodiments of this application will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0051] It should be noted that when a component is referred to as "fixed to", "mounted to", or "installed on" another component, it can be directly on or indirectly mounted on the other component; when a component is "connected" to another component, or a component is referred to as "connected to" another component, it can be directly connected to or indirectly connected to the other component.

[0052] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0053] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "a plurality of" or "several" means two or more, unless otherwise explicitly specified.

[0054] It should be noted that the structures, proportions, sizes, etc., shown in the accompanying drawings are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the conditions under which this application can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size should still fall within the scope of the technical content disclosed in this application, provided that they do not affect the effects and purposes that this application can produce.

[0055] This invention provides a spatial position multidimensional information measurement device, comprising a flexible light shield, an illumination mechanism, and a detection mechanism. The illumination mechanism includes a fixing component and a light source group. The fixing component is connected to the flexible light shield. The light source group is installed in the fixing component, and the illumination direction of the light source group faces inward towards the flexible light shield. The light source group includes a first light source, a second light source, and a third light source. The axis of the first light source is arranged along the Z-axis, the axis of the second light source forms an angle with the axis of the first light source in the XZ plane, and the axis of the third light source forms an angle with the axis of the first light source in the YZ plane. The detection mechanism is connected to the flexible light shield and is arranged corresponding to the light source group to detect the light emitted by the first, second, and third light sources. The spatial position multidimensional information measurement device detects the light emitted by the light source group through the detection mechanism and obtains corresponding data through calculation, making the data acquisition process simple and efficient, and the acquired data has high accuracy. Furthermore, the collected data can be processed by a single device to obtain the spatial multidimensional position information of the device under test.

[0056] Please refer to the following: Figures 1 to 8 This embodiment provides a spatial location multidimensional information measurement device 100, which includes a flexible light shield 10, an irradiation mechanism 20, and a detection mechanism 30. The flexible light shield 10 refers to a light shield that can undergo a certain elastic deformation after being subjected to force.

[0057] The irradiation mechanism 20 includes a fixing member 21 and a light source group 22. The fixing member 21 is connected to the flexible light shield 10, and the light source group 22 is installed in the fixing member 21, with the irradiation direction of the light source group 22 facing the inside of the flexible light shield 10.

[0058] The light source group 22 includes a first light source 221, a second light source 222, and a third light source 223. The axis of the first light source 221 is set along the Z-axis. The axis of the second light source 222 is set at an angle to the axis of the first light source 221 in the XZ plane. The axis of the third light source 223 is set at an angle to the axis of the first light source 221 in the YZ plane. That is, in the XZ plane, the second light source 222 is set at an angle, and its setting direction is not parallel to that of the first light source 221. In the YZ plane, the third light source 223 is set at an angle, and its setting direction is not parallel to that of the first light source 221.

[0059] In this embodiment, the X-axis, Y-axis, and Z-axis are three mutually perpendicular axes, with the Z-axis being the vertical axis, the X-axis being the horizontal axis, and the Y-axis being the vertical axis.

[0060] The detection mechanism 30 is connected to the flexible light shield 10 and is positioned corresponding to the light source group 22. The detection mechanism 30 is used to detect the light emitted by the first light source 221, the second light source 222, and the third light source 223. The fact that the detection mechanism 30 is positioned corresponding to the light source group 22 means that the light emitted from the light source group 22 can correspondingly illuminate the detection mechanism 30.

[0061] It is understandable that impact testing is a method for assessing the strength of equipment (for example, to ensure the safety and continuous combat capability of ships, all shipboard equipment undergoes impact testing before deployment to assess its strength). A common method for measuring the deformation of vibration isolators during impact is to fill the upper and lower clamps of the isolator with moist clay. After the explosion impact, the clay is removed, dried, and then cut to measure the thinnest cross-section to roughly estimate the deformation of the upper and lower clamps at the end of the impact. However, the commonly used clay-based distance measurement method has a problem: for large equipment, due to its weight, a large number of vibration isolators are required. According to GJB150, for large equipment exceeding 2.7t, six explosion impact tests from weak to strong are required. To obtain the deformation data of the vibration isolator, the deformation data of the clay must be recorded after each explosion impact, which is cumbersome, inefficient, yields few data points, and has low accuracy.

[0062] Furthermore, the common problem with the measurement devices and methods disclosed in the prior art (such as CN110260807A and CN113120206A) is that they lack spatial dimension data of the deformation of the vibration isolator under the required impact load.

[0063] The spatial position multidimensional information measurement device 100 provided in this embodiment sets the light source group 22 on the fixing member 21. In use, the fixing member 21 and the detection mechanism 30 are respectively installed at different positions on the device under test (for example, the fixing member 21 is fixed to the spatial movable part of the device under test, and the detection mechanism 30 is fixed to the spatial fixed part of the device under test). Then, during the impact test, the flexible light shield 10 changes with the position of the device under test, so that the light source is always in a sealed dark chamber. By sequentially turning on the first light source 221, the second light source 222, and the third light source 223, and performing detection by the detection mechanism 30, the spatial position parameters of the three light sources on the fixing member 21 are combined to calculate the three-axis displacement data and three-axis rotation angle data of the device under test.

[0064] Specifically, in one embodiment, the fixing member 21 can be fixed to the upper clamping plate of the vibration isolator, and the detection mechanism 30 can be fixed to the lower clamping plate of the vibration isolator. The spatial position multidimensional information measurement device 100 is used to measure the three-axis displacement data and three-axis rotation angle data of the upper and lower clamping plates of the vibration isolator.

[0065] Specifically, in one embodiment, the flexible light shield 10 has a tower-shaped structure that is narrower at the top and wider at the bottom. The irradiation mechanism 20 is installed at the upper end of the flexible light shield 10, and the detection mechanism 30 is installed at the lower end of the flexible light shield 10. This better ensures the reliability of the measurement.

[0066] Preferably, in one embodiment, the angle between the axis of the second light source 222 and the axis of the first light source 221 in the XZ plane is the same as the angle between the axis of the third light source 223 and the axis of the first light source 221 in the YZ plane, thereby further ensuring the accuracy of the monitoring data. Specifically, in one embodiment, the angle between the axis of the second light source 222 and the axis of the first light source 221 in the XZ plane is θ, the angle between the axis of the third light source 223 and the axis of the first light source 221 in the YZ plane is also θ, and the extension lines of the axes of the second light source 222 and the third light source 223 intersect at point G on the extension line of the axis of the first light source 221.

[0067] Preferably, in one embodiment, the fixing member 21 includes a fixing joint 23 and a fixing seat 24. The fixing joint 23 is connected to the flexible light shield 10, and the fixing joint 23 is detachably connected to the fixing seat 24 via a fastening buckle 25. The fixing seat 24 is used to adhesively fix it to the device under test. This structure facilitates the installation and disassembly of the spatial position multidimensional information measurement device 100.

[0068] Preferably, in one embodiment, the fixing joint 23 includes a first joint 231, a second joint 232, and a third joint 233. The first joint 231 is connected to the flexible light shield 10, and a light source mounting hole 2311 is formed in the first joint 231. The light source group 22 is correspondingly installed at the light source mounting hole 2311. The second joint 232 is connected to the first joint 231, and the second joint 232 shields and covers the light source mounting hole 2311. The third joint 233 is connected to the second joint 232, and the third joint 233 is detachably connected to the fixing base 24 through the fastening buckle 25.

[0069] Specifically, three light source mounting holes 2311 are provided, namely a first mounting hole, a second mounting hole, and a third mounting hole. The first light source 221 is mounted in the first mounting hole, the second light source 222 is mounted in the second mounting hole, and the third light source 223 is mounted in the third mounting hole. The axis of the first mounting hole coincides with the Z-axis. The second mounting hole and the first mounting hole form an angle θ in the XZ plane, and the third mounting hole and the first mounting hole also form an angle θ in the YZ plane. The extension lines of the three mounting holes are relative to point G. That is, in one embodiment, the position angle of the light source in the light source group 22 is limited by the light source mounting holes 2311. More preferably, after the light sources in the light source group 22 are correspondingly mounted in the light source mounting holes 2311, the light source group 22 is encapsulated in the first joint 231 using resin.

[0070] Preferably, in one embodiment, the second joint 232 is connected to the first joint 231 via a first locating pin 234, allowing relative rotation between the first joint 231 and the second joint 232 around the first locating pin 234. The first joint 231 has a first threaded hole 2312, and the second joint 232 has a first countersunk hole 2321 corresponding to the first threaded hole 2312, the diameter of which is larger than that of the first threaded hole 2312. The second joint 232 and the first joint 231 are fastened together by a first screw 235, which is installed at both the first countersunk hole 2321 and the first threaded hole 2312. In other words, the second joint 232 and the first joint 231 are connected by the first locating pin 234 and the first screw 235. Since the diameter of the first countersunk hole 2321 is larger than the diameter of the first threaded hole 2312, when the first screw 235 is not tightened, there is a certain rotational margin between the first joint 231 and the second joint 232. The relative positions of the first joint 231 and the second joint 232 can be finely adjusted by rotation, thereby adjusting the position angle of the light source group 22. After adjustment, the first screw 235 is tightened.

[0071] Preferably, in one embodiment, the first positioning pin 234 is coaxially arranged with the first light source 221. This prevents the reference position of the first light source 221 from shifting when adjusting the relative positions of the first joint 231 and the second joint 232, thus reducing the difficulty of adjustment.

[0072] Preferably, in one embodiment, the third joint 233 is connected to the second joint 232 via a second locating pin 236, allowing relative rotation between the second joint 232 and the third joint 233 around the second locating pin 236. The third joint 233 has a second threaded hole 2331, and the second joint 232 has a second countersunk hole 2322 corresponding to the second threaded hole 2331, the diameter of which is larger than the diameter of the second threaded hole 2331. The third joint 233 and the second joint 232 are fastened together by a second screw 237, which is installed at both the second countersunk hole 2322 and the second threaded hole 2331. In other words, the third joint 233 and the second joint 232 are connected by the second locating pin 236 and the second screw 237. Since the diameter of the second countersunk hole 2322 is larger than the diameter of the second threaded hole 2331, when the second screw 237 is not tightened, there is a certain rotational margin between the second joint 232 and the third joint 233. The relative positions of the second joint 232 and the third joint 233 can be finely adjusted by rotation, thereby adjusting the position angle of the light source group 22. After adjustment, the second screw 237 is tightened.

[0073] Preferably, in one embodiment, the third joint 233 is connected to the fixed base 24 via a third positioning pin 238, and the third joint 233 is rotatable relative to the fixed base 24 about the third positioning pin 238. The third positioning pin 238, the second positioning pin 236, and the first positioning pin 234 are arranged perpendicularly to each other. That is, the axes of the second positioning pin 236 and the first positioning pin 234 intersect perpendicularly in space, and the axis of the third positioning pin 238 intersects perpendicularly with the axes of the first positioning pin 234 and the second positioning pin 236 at a single point. This structure allows for better adjustment of the position and angle of the light source group 22.

[0074] Specifically, in one embodiment, the inner surface of the fastener 25 has an internal thread 251, and the outer peripheral surface of the fastener 25 has a first adjustment surface 252. The third positioning pin 238 is disposed at one end of the third joint 233, and one end of the fixing seat 24 has a pin hole that matches the third positioning pin 238. The other end of the fixing seat 24 is a fixing surface 241, which is used to bond and fix to the device under test. The outer peripheral surface of the fixing seat 24 has an external thread 242, and the fixing seat 24 and the fastener 25 are detachably connected through the external thread 242 and the internal thread 251. The outer peripheral surface of the fixing seat 24 also has a second adjustment surface 243, and the outer peripheral surface of the third joint 233 has a third adjustment surface 2332. The first adjustment surface 252, the second adjustment surface 243, and the third adjustment surface 2332 are used to fix and adjust the angle of the light source group 22. More specifically, the inner surface of the fastener 25 is provided with a limiting platform 253, and the outer peripheral surface of the third joint 233 is provided with a boss 2333. The boss 2333 is limited by the limiting platform 253, thereby connecting the third joint 233 and the fixing seat 24 together.

[0075] Preferably, in one embodiment, the detection mechanism 30 includes a fixing plate 31 and a matrix sensor group 32. The fixing plate 31 is connected to the flexible light shield 10 and is used to adhere and fix it to the device under test. The matrix sensor group 32 is mounted on the fixing plate 31 and is positioned opposite the light source group 22. The fixing plate 31 and the first joint 231 are connected by the flexible light shield 10, thus enclosing the matrix sensor group 32 in a sealed space.

[0076] Specifically, in one embodiment, the matrix sensor group 32 is composed of a plurality of photodiodes.

[0077] In one embodiment, the spatial position multidimensional information measurement device 100 calculates the distance between the light source and the matrix sensor by the time difference between the current signal response time of the matrix sensor group 32 and the laser emission time of the light source group 22, and then calculates the three-axis displacement data and three-axis rotation angle data of the upper and lower clamps of the vibration isolator by combining the spatial position parameters of the three light sources on the fixed joint 23.

[0078] The aforementioned multi-dimensional spatial position measurement device 100 allows for remote operation to view the vibration isolator's status information, simplifying and maximizing the efficiency of data acquisition while providing high-precision data. Compared to traditional single-instrument, single-dimensional ranging methods, it yields more comprehensive data. A single device can process the acquired data to obtain multi-dimensional spatial position information of the upper and lower clamping plates of the vibration isolator.

[0079] Please refer to the following: Figure 2 Before the fixing plate 31 is fixed to the space fixture of the device under test, the matrix sensor group is initially partitioned into O'XYZ. The coordinate system corresponding to the horizontal adjustment of the light source group 22 using the first joint 231, the second joint 232, and the third joint 233 is shown below. Figure 7 .

[0080] like Figure 7 As shown, point G is the intersection of the three light sources. Point H is the intersection of the first light source 221 and the bottom surface of the first joint 231; point I is the intersection of the second light source 222 and the bottom surface of the first joint 231; point J is the intersection of the third light source 223 and the bottom surface of the first joint 231. Point C is the vertical projection of point H of the first light source 221 onto the OXY plane, and the length of HC is the spatial position of the moving part after vertical change. After horizontal adjustment at the end, point C coincides with O. After the impact test, the coordinate value of point C on the matrix sensor group 32 is the horizontal displacement change of the moving part, and the height difference is the vertical displacement change.

[0081] Please refer to the following: Figure 7 and Figure 8 Point A is the illumination point of the first light source 221 on the plane OXY; point F' is the illumination point of the second light source 222 on the plane OXY; point E is the illumination point of the third light source 223 on the plane OXY; point B' is the foot of the perpendicular from point H to the extension of AF'; point D is the foot of the perpendicular from point H to the extension of AE. Surfaces HAD and HDC intersect perpendicularly at line HD. Therefore, the rotation angle of the light path HA representing the normal of the first joint 231 around the Y-axis is ∠DHC, and its value is denoted as γ. j The perpendicular plane ABH passing through the planes HA and HC does not coincide with the plane AB'H. Since θ is very small during design, AB' and AB can be considered approximately equal. Similarly, the rotation angle about the X-axis is ∠BHC, and its value is denoted as γ. i The rotation angle about the Z-axis is defined by the angle between CD and the X-axis, and its value is denoted as γ. k .

[0082] Light is sequentially transmitted to the first light source 221, the second light source 222, and the third light source 223. The terminal processor detects the current signal of the matrix sensor group 32 and calculates the axial dimension, i.e., the optical path length, between the light source and the matrix sensor by the time difference between the emitted light signal and the received electrical signal.

[0083] d=c·Δt

[0084] Where d is the optical path length, c is the speed of light, and Δt is the time difference.

[0085] Define the origin O and record the initial height of the moving part, which is the initial length HO of the first light source 221.

[0086] Combination Figure 7 Let the unit vectors on X, Y, and Z be i, j, and k, respectively. Represent points A, E, and F' using these unit vectors.

[0087]

[0088]

[0089]

[0090] In ΔGAE, we can obtain the law of cosines.

[0091]

[0092] in:

[0093] GA = GH + HA

[0094] In ΔGAF′, GE=GJ+JE can be obtained by the Law of Cosines.

[0095]

[0096] in:

[0097] GA = GH + HA

[0098] GF′=GI+IF′

[0099] Furthermore, in ΔADH

[0100]

[0101]

[0102] In ΔAB′H

[0103]

[0104]

[0105] Since the value of θ is small, AF' = AF and AB' = AB.

[0106] and then

[0107]

[0108]

[0109] In quadrilateral ABCD

[0110]

[0111] Therefore, the horizontal displacements of the moving parts in the measuring space are respectively

[0112] The X-direction displacement is:

[0113] The Y-direction displacement is:

[0114] In ΔDHC

[0115]

[0116] The Z-axis transition is:

[0117] The rotation angle around the X-axis is:

[0118] The rotation angle around the Y-axis is:

[0119] From the above analysis, the rotation angle about the Z-axis can be expressed as: The angle between the vector and the unit vector i.

[0120] The rotation angle around the Z-axis is:

[0121] in:

[0122] The aforementioned multi-dimensional spatial position information measurement device 100 solves the problems of cumbersome, inefficient, and low-precision process for measuring the spatial position data of vibration isolators under impact test conditions. It also solves the problem of insufficient spatial dimension data of vibration isolator deformation collected under impact test conditions.

[0123] Meanwhile, in one embodiment, a method for installing and using a spatial location multidimensional information measurement device is also provided, which includes the following steps:

[0124] S1. Assemble the spatial location multidimensional information measuring device 100 as described in any of the above-mentioned methods.

[0125] Specifically, the first joint 231, the second joint 232, the third joint 233, the fixing seat 24 and the fastening buckle 25 are initially assembled, and the irradiation mechanism 20, the detection mechanism 30 and the flexible light shield 10 are assembled.

[0126] S2. Install the spatial location multidimensional information measurement device 100 on the device to be measured.

[0127] Specifically, the fixing surface 241 is firmly attached to the spatial movable part of the device under test, and the fixing plate 31 is firmly attached to the spatial fixed part of the device under test.

[0128] S3. Perform an impact test on the device under test.

[0129] S4. The first light source 221, the second light source 222, and the third light source 223 are turned on in sequence. The light emitted by the first light source 221, the second light source 222, and the third light source 2223 is detected by the detection mechanism 30, and the detection data is calculated.

[0130] At this point, it can be measured. By substituting HA, HE, and HF′ with the known parameters GH, GI, and GJ into the above formula, we can obtain the multidimensional information parameters of spatial location.

[0131] The above description is merely an embodiment of the present invention. It should be noted that those skilled in the art can make improvements without departing from the inventive concept of the present invention, but these improvements all fall within the protection scope of the present invention.

Claims

1. A method for installing and using a multi-dimensional spatial location information measurement device, characterized in that, Includes the following steps: S1. Assemble a multi-dimensional spatial location information measurement device; The spatial location multidimensional information measurement device includes a flexible light shield, an irradiation mechanism, and a detection mechanism; The irradiation mechanism includes a fixing component and a light source assembly; The fastener is connected to the flexible light shield; The light source group is installed in the fixing member, and the illumination direction of the light source group is towards the inside of the flexible light shield; The light source group includes a first light source, a second light source, and a third light source. The axis of the first light source is set along the Z-axis direction. The axis of the second light source is set at an angle to the axis of the first light source in the XZ plane. The axis of the third light source is set at an angle to the axis of the first light source in the YZ plane. The detection mechanism is connected to the flexible light shield and is configured corresponding to the light source group to detect the light emitted by the first light source, the second light source, and the third light source. The fastener includes a fixing joint and a fixing seat; The fixed joint is connected to the flexible light shield, and the fixed joint is detachably connected to the fixed base via a fastener; The mounting bracket is used to bond and fix it to the device under test; The fixed joint includes a first joint, a second joint, and a third joint; The first joint is connected to the flexible light shield, and a light source mounting hole is provided in the first joint; The light source group is installed at the corresponding light source mounting hole; The second joint is connected to the first joint and covers the light source mounting hole; The third joint is connected to the second joint, and the third joint is detachably connected to the fixing seat via the fastener; The angle between the axis of the second light source and the axis of the first light source in the XZ plane is the same as the angle between the axis of the third light source and the axis of the first light source in the YZ plane; the extension lines of the axes of the second light source and the third light source intersect at a point on the extension line of the axis of the first light source. Wherein, the intersection point of the three light sources is G, the intersection point of the first light source and the bottom surface of the first joint is H, the intersection point of the second light source and the bottom surface of the first joint is I, the intersection point of the third light source and the bottom surface of the first joint is J, the vertical projection point of point H of the first light source on the OXY plane is C, the origin point O is defined, and the initial height of the spatial moving part, i.e., the initial length HO of the first light source, is recorded. 初 After the terminal is horizontally adjusted, point C coincides with point O; The illumination point of the first light source on the plane OXY is A, the illumination point of the second light source on the plane OXY is F', the illumination point of the third light source on the plane OXY is E, the foot of the perpendicular from point H to the extension of AF' is B', the foot of the perpendicular from point H to the extension of AE is D, and the plane HAD and the plane HDC intersect perpendicularly at line HD. The rotation angle of the light path HA of the first joint normal around the Y-axis is ∠DHC, and its value is denoted as γ. j The rotation angle about the X-axis is ∠BHC, and its value is denoted as γ. i The rotation angle around the Z-axis is defined by the angle between CD and the X-axis, and its value is denoted as γ. k Let i, j and k be the unit vectors on X, Y and Z respectively, and use the unit vectors to represent points A, E and F'; The spatial position multidimensional information measurement device measures the displacement and rotation angle of a spatial moving part in space, satisfying the following formula: ； ； ； The X-direction displacement is: ； The Y-direction displacement is: ； The Z-direction displacement is: ； The rotation angle around the X-axis is: ； The rotation angle around the Y-axis is: ； The rotation angle around the Z-axis is: ； in: ； S2. Install the spatial location multidimensional information measurement device on the device to be measured; S3. Perform an impact test on the device under test; S4. The first light source, the second light source, and the third light source are turned on in sequence and cycled. The light emitted by the first light source, the second light source, and the third light source is detected by the detection mechanism, and the detection data is calculated.

2. The installation and use method of the spatial location multidimensional information measurement device according to claim 1, characterized in that, The second joint is connected to the first joint via a first locating pin; The first joint has a first threaded hole; The second joint has a first countersunk hole corresponding to the position of the first threaded hole, and the diameter of the first countersunk hole is larger than the diameter of the first threaded hole. The second joint is fastened to the first joint by a first screw, which is installed in the first countersunk hole and the first threaded hole.

3. The installation and use method of the spatial location multidimensional information measurement device according to claim 2, characterized in that, The first positioning pin is coaxially arranged with the first light source.

4. The installation and use method of the spatial location multidimensional information measurement device according to claim 2, characterized in that, The third joint is connected to the second joint via a second locating pin; The third joint is provided with a second threaded hole; The second joint has a second countersunk hole corresponding to the position of the second threaded hole, and the diameter of the second countersunk hole is larger than the diameter of the second threaded hole; The third joint is fastened to the second joint by a second screw, which is installed in the second countersunk hole and the second threaded hole.

5. The installation and use method of the spatial location multidimensional information measurement device according to claim 4, characterized in that, The third joint is connected to the fixed seat via a third positioning pin, and the third joint can rotate relative to the fixed seat about the third positioning pin as an axis. The third positioning pin, the second positioning pin, and the first positioning pin are set perpendicularly to each other.

6. The installation and use method of the spatial location multidimensional information measurement device according to claim 1, characterized in that, The detection mechanism includes a fixed plate and a matrix sensor group; The fixing plate is connected to the flexible light shield and is used to bond and fix it to the device under test; The matrix sensor group is mounted on the fixed plate and is configured corresponding to the light source group.

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