CN113419234A - Device and method for monitoring deformation of high-rise building based on millimeter wave radar - Google Patents
Device and method for monitoring deformation of high-rise building based on millimeter wave radar Download PDFInfo
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 36
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/02—Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems
- G01S13/06—Systems determining position data of a target
- G01S13/08—Systems for measuring distance only
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
- G01B7/16—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring the deformation in a solid, e.g. by resistance strain gauge
- G01B7/24—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring the deformation in a solid, e.g. by resistance strain gauge using change in magnetic properties
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/88—Radar or analogous systems specially adapted for specific applications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
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Abstract
The invention discloses a device and a method for monitoring deformation of a high-rise building based on a millimeter wave radar, and belongs to the technical field of radar signal processing. The device for monitoring the deformation of the high-rise building based on the millimeter wave radar comprises a radar component and a pyramid in signal connection with the radar component; the radar component consists of a radar main body, a beam ranging mechanism and a two-way mounting mechanism; the millimeter wave radar has the advantages that the precision can reach a submillimeter level, high-precision micro-deformation monitoring can be realized, the observation and comparison are carried out on the local space through point alignment, the condition is more visually reflected than the original dynamically monitored equipment, the advantages of convenience in installation and operation, high efficiency in testing, small environmental interference and the like are shown, the functions of effective analysis and prediction are realized, the important function is realized in the process of preventing the building deformation, and the application of the engineering is facilitated.
Description
Technical Field
The invention relates to the technical field of radar signal processing, in particular to a device and a method for monitoring deformation of a high-rise building based on a millimeter wave radar.
Background
With the increase of high-rise buildings and the increase of loads, under the combined action of foundation and superstructure, the buildings may have uneven settlement, resulting in the inclination or cracks of the buildings, affecting the normal use, and even endangering the safety of the buildings. The current method for monitoring the deformation of the building mainly achieves the purpose of comparison through the change of data collected by various sensors. When the comparison data reaches the range value, corresponding warning alarm processing is carried out, so that the purpose of monitoring is achieved. Compared with the traditional instrument, the deformation monitoring device for the high-rise building by using the millimeter wave radar has the advantages of being convenient to install and operate, small in environmental interference and the like, and can be used for monitoring the building in real time at regular intervals, thereby ensuring the safe use of the building. In view of this, a device and a method for monitoring deformation of a high-rise building based on a millimeter wave radar are provided.
Disclosure of Invention
1. Technical problem to be solved
The invention aims to provide a device and a method for monitoring deformation of a high-rise building based on a millimeter wave radar.
2. Technical scheme
The device for monitoring the deformation of the high-rise building based on the millimeter wave radar comprises a radar component and a pyramid in signal connection with the radar component; the radar component consists of a radar main body, a beam ranging mechanism and a two-way mounting mechanism;
the radar main body is arranged on the front surface of the beam ranging mechanism and used for transmitting electromagnetic signals;
the beam ranging mechanism is coaxially arranged with the pyramid and is used for measuring an installation base point of the pyramid;
the two-way mounting mechanism is mounted on the back of the beam ranging mechanism and used for transverse and longitudinal mounting of the radar main body.
Preferably, the beam ranging mechanism includes box body, lid, the radar main part passes through the locating hole and installs in the lid surface, the inside ejector pin rather than sliding connection that radially is equipped with of box body, ejector pin starting end butt has the adjusting screw with box body threaded connection, the ejector pin terminal passes through spring A and the inside butt of box body.
Preferably, a laser A is installed on the top surface of the box body at a position opposite to the radar main body lens, one side of the laser A is rotatably connected with an angle wheel through a wheel shaft, a tooth socket A is formed in the circumferential outer wall of one side of the angle wheel, the tooth socket A is meshed with a tooth socket B in the outer wall of the ejector rod terminal, a laser B is embedded in the circumferential outer wall of the other side of the angle wheel, an angle scale embedded with the box cover is arranged on the outer side of the angle wheel, and a pointer sleeved with the end portion of the wheel shaft is arranged on the outer side of the angle scale.
Preferably, the positioning holes are radially provided with a plurality of groups, and each group of positioning holes consists of through holes which are arranged in a triangular shape.
Preferably, the intersection point of the laser A and the laser B is matched with the position of the radar main body lens.
Preferably, two-way installation mechanism is including locating the two-way mounting bracket behind the box body, two-way mounting bracket indulges the U type frame that the landing leg is constituteed by an axial rod and two, indulge the landing leg upper end and pass through fixed screw A spiro union with the axial rod side, the expansion screw has all been seted up to the position that the axial rod middle part is close to two fixed screw A, just the positive position interval that is close to the middle part of axial rod is equipped with two archs.
Preferably, two to installation mechanism still include that the symmetry sets up in two wedge spouts at the box body back, it is equipped with the holder to slide in the wedge spout, there is the worker type spare through spring B butt in the holder inside, the worker inslot symmetric pressure of worker type spare is equipped with two arm lock, two the size of a dimension that the arm lock was embraced and the size adaptation of axial rod, and two the arm lock is embraced the terminal and is passed through the spiro union of set screw B.
Preferably, two spring holes are formed in the wedge-shaped sliding groove in parallel, a spring head is fixedly connected to the inner rotation of each spring hole, a spring C is embedded in each spring head, and the head of each spring head is in clamping fit with a head groove in the clamping seat.
Preferably, the distance between the two protrusions is matched with the distance between the two clamping arms which are axially arranged.
Preferably, the method for monitoring deformation of a high-rise building based on the millimeter wave radar comprises the steps of S1, positioning and installing pyramids and radar components inside and outside the building;
s2, monitoring relative displacement of a plurality of positions inside and outside the building through a radar assembly;
s3, realizing high distance measurement precision through a low-pass digital filter, and sensing static deformation of 0.1mm level;
s4, sensing dynamic deformation of the building based on micro Doppler by measuring the micro Doppler characteristics of the pyramid surface;
and S5, forming a three-dimensional static and dynamic model of the building according to the data of different test points received by the radar component.
3. Advantageous effects
Compared with the prior art, the invention has the advantages that:
compared with the prior art, the invention has the following advantages: the millimeter wave radar has the advantages that the precision can reach a submillimeter level, high-precision micro-deformation monitoring can be realized, the observation and comparison are carried out on the local space through point alignment, the condition is more visually reflected than the original dynamically monitored equipment, the advantages of convenience in installation and operation, high efficiency in testing, small environmental interference and the like are shown, the functions of effective analysis and prediction are realized, the important function is realized in the process of preventing the building deformation, and the application of the engineering is facilitated.
Drawings
FIG. 1 is a schematic view of a transverse mounting arrangement of the present invention;
FIG. 2 is a schematic view of the longitudinal mounting structure of the present invention;
FIG. 3 is a schematic front-side exploded view of the overall structure of the present invention;
FIG. 4 is a schematic view of the overall structure of the present invention with the back side broken away;
FIG. 5 is a schematic structural split view of a beam ranging mechanism according to the present invention;
FIG. 6 is a schematic partial structural breakdown of the present invention;
FIG. 7 is a view of a pyramid installation monitoring point according to the present invention;
FIG. 8 is a diagram of a millimeter wave radar test point for placing pyramids in different directions according to the present invention;
FIG. 9 is a block diagram of the millimeter wave radar of the present invention monitoring building formation;
the reference numbers in the figures illustrate: 1. a radar component; 2. a radar main body; 3. a beam ranging mechanism; 4. a two-way mounting mechanism;
301. a box body; 302. a box cover; 303. positioning holes; 304. a top rod; 305. adjusting screws; 306. a spring A; 307. a laser A; 308. an angle wheel; 309. a tooth socket A; 310. a tooth socket B; 311. a laser B; 312. an angle scale; 313. a pointer;
401. a two-way mounting rack; 402. an axial rod; 403. a longitudinal leg; 404. an expansion screw hole; 405. a protrusion; 406. a wedge-shaped chute; 407. a holder; 408. a forming member; 409. clamping arms; 410. a spring hole; 411. a spring head; 412. and a spring C.
Detailed Description
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the equipment or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.
In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
Referring to fig. 1-8, the present invention provides a technical solution:
the device for monitoring the deformation of the high-rise building based on the millimeter wave radar comprises a radar component 1 and a pyramid in signal connection with the radar component 1; the radar component 1 consists of a radar main body 2, a wave beam distance measuring mechanism 3 and a two-way mounting mechanism 4;
the radar main body 2 is arranged on the front surface of the beam ranging mechanism 3 and used for transmitting electromagnetic signals; utilize millimeter wave radar transmission chirp signal, because the radar has certain distance between reaching the building test point, from the signal transmission to returning and receiving, have certain distance, this distance has just produced the receiving time difference, and the difference signal is obtained through the mixer to transmission signal and received signal, goes out the pyramid distance according to this intermediate frequency signal analysis, compares with the distance value before the building does not take place deformation simultaneously, just can calculate the relative displacement of test point.
The beam ranging mechanism 3 is coaxially arranged with the pyramid and is used for measuring an installation base point of the pyramid; because the pyramid needs to be installed in the monitoring range that the wave beam of millimeter wave radar covered, and along with the degree of difficulty crescent that building structure outward appearance found, very easily receive the building structure when test point installation pyramid and hinder, the mode of traditional artifical range finding location is wasted time and energy, and the error is great, consequently solves the problem of pyramid location installation through design wave beam ranging mechanism 3.
The two-way mounting mechanism 4 is mounted on the back of the beam ranging mechanism 3 and used for mounting the radar main body 2 in the transverse direction and the longitudinal direction. As shown in fig. 7 to 8, the pyramid installed on the top surface of the building is installed vertically under the millimeter wave radar connected to the signal thereof, and the pyramid installed on the sidewall of the building is installed horizontally on the same axis as the millimeter wave radar connected to the signal thereof, which requires an installation structure capable of satisfying both installation methods.
Compared with the prior art, the invention has the advantages that: the millimeter wave radar has the advantages that the precision can reach a submillimeter level, high-precision micro-deformation monitoring can be realized, the observation and comparison are carried out on the local space through point alignment, the condition is more visually reflected than the original dynamically monitored equipment, the advantages of convenience in installation and operation, high efficiency in testing, small environmental interference and the like are shown, the functions of effective analysis and prediction are realized, the important function is realized in the process of preventing the building deformation, and the application of the engineering is facilitated.
Specifically, as shown in fig. 5, the beam ranging mechanism 3 includes a box body 301 and a box cover 302, the radar main body 2 is installed on the surface of the box cover 302 through a positioning hole 303, a push rod 304 slidably connected to the box body 301 is radially arranged inside the box body 301, the starting end of the push rod 304 abuts against an adjusting screw 305 in threaded connection with the box body 301, and the terminal end of the push rod 304 abuts against the inside of the box body 301 through a spring a 306.
Furthermore, a laser A307 is installed on the top surface of the box body 301 corresponding to the position of the lens of the radar main body 2, one side of the laser A307 is rotatably connected with an angle wheel 308 through a wheel shaft, a tooth space A309 is formed in the circumferential outer wall of one side of the angle wheel 308, the tooth space A309 is meshed and connected with a tooth space B310 in the outer wall of the terminal of the ejector rod 304, a laser B311 is embedded in the circumferential outer wall of the other side of the angle wheel 308, an angle scale 312 embedded with the box cover 302 is arranged on the outer side of the angle wheel 308, and a pointer 313 sleeved with the end portion of the wheel shaft is arranged on the outer side of the angle scale 312. According to the invention, the ejector rod 304 is pushed by rotating the adjusting screw 305, so that the ejector rod 304 with a complex force effect drives the angle wheel 308 meshed and connected with the ejector rod to rotate, the relative included angle between the laser B311 and the laser A307 is further adjusted, and whether the included angle reading is matched with the radar main body 2 or not can be determined by indicating the pointer 313 on the angle scale 312. (the selection of different radar bodies 2 causes a change in beam width)
Furthermore, a plurality of sets of positioning holes 303 are radially arranged, and each set of positioning holes 303 is composed of through holes arranged in a triangular shape. The invention is provided with a plurality of groups of positioning holes 303 for adjusting the radial positions of different radar main bodies 2, so that the intersection point of the laser A307 and the laser B311 is matched with the position of the lens of the radar main body 2.
Pyramid installation principle: taking the installation of the pyramid and the millimeter wave radar at the upper and lower positions as an example, firstly fixing the device on the top surface of the lower layer, determining the width of a beam (related data in the product description) according to the type of the selected radar main body 2, rotating the adjusting screw 305 to enable the adjusting screw 305 to push the ejector rod 304, further enabling the ejector rod 304 to drive the angle wheel 308 in meshed connection with the ejector rod to rotate (the rotating angle corresponds to half of the width of the beam), irradiating two formed light spots on the bottom surface of the upper layer (one formed by the vertical laser A307 and one formed by the inclined laser B311), and marking the linear direction of the straight line on the top surface of the upper layer according to the principle that two points determine a straight line; and measuring the distance L from the point to the upper layer edge in the linear direction by using a measuring tape from the vertical light point, and reversely deducing the position of the pyramid on the linearity according to the distance L so as to determine that the pyramid and the millimeter wave radar are in the same vertical position.
It is worth to say that, two-way installation mechanism 4 is including locating two-way mounting bracket 401 behind box body 301, and two-way mounting bracket 401 is by an axial rod 402 and two U type framves that indulge landing leg 403 and constitute, indulges the landing leg 403 upper end and passes through fixed screw A spiro union with axial rod 402 side, and the expansion screw hole 404 has all been seted up to the position that is close to two fixed screw A in the middle part of axial rod 402, and the positive position interval that is close to the middle part of axial rod 402 is equipped with two archs 405.
It is worth noting that the bidirectional mounting mechanism 4 further comprises two wedge-shaped chutes 406 symmetrically arranged on the back surface of the box body 301, clamping seats 407 are arranged in the wedge-shaped chutes 406 in a sliding manner, the insides of the clamping seats 407 are abutted to the workpiece 408 through springs B, two clamping arms 409 are symmetrically pressed in the workpiece groove of the workpiece 408, the size of the two clamping arms 409 in a closed manner is matched with the size of the axial rod 402, and the terminals of the two clamping arms 409 in a closed manner are in threaded connection through fixing screws B.
In addition, two spring holes 410 are arranged in parallel in the wedge-shaped sliding groove 406, a spring head 411 is fixedly connected in the spring holes 410 in a rotating mode, a spring C412 is embedded in the spring head 411, and the head of the spring head 411 is matched with a head groove in the clamping base 407 in a clamping mode. The mounting structure of the invention is convenient for assembly, strong adaptability and convenient for replacing parts.
In addition, the distance between the two projections 405 is adapted to the distance between the two clamping arms 409 which are axially arranged.
Millimeter wave radar installation principle: the radar main body 2 is installed in a horizontal position, the lens is vertically placed, longitudinal support legs 403 are additionally arranged at two side ends of the axial rod 402, and the horizontal installation of the device is facilitated through foundation bolts; the installation of vertical position, radar main part 2 camera lens level are put, remove two vertical landing legs 403, through the inflation screw 404 on the axial rod 402, drive into the inflation screw when being connected with vertical wall.
A method for monitoring deformation of high-rise buildings based on millimeter wave radar,
s1, positioning and installing the pyramid and the radar component 1 inside and outside the building; the millimeter wave radar of the invention is arranged on a measurement base point, and as shown in fig. 9, a pyramid is an electronic beacon which is matched with the millimeter wave radar to reflect electromagnetic signals and is arranged on a point to be measured 1, 2, i, j of a building within a monitoring range covered by a wave beam of the millimeter wave radar. The points to be tested of a building are generally arranged on walls, floor layers, roofs, between parts with large differences in building height, load or foundation bearing capacity, and at joints of new and old buildings.
S2, monitoring relative displacement of a plurality of positions inside and outside the building through the radar component 1; the millimeter wave radar transmits linear frequency modulation signals, and because the radar reaches a certain distance between building test points, the radar transmits signals to return to receive, and has a certain distance, so that the distance generates a receiving time difference, the transmitted signals and the received signals pass through a mixer to obtain difference signals, the pyramid distance is analyzed according to the intermediate frequency signals, and meanwhile, the relative displacement of the test points can be calculated by comparing the pyramid distance with the distance value before the building is not deformed.
S3, realizing high distance measurement precision through a low-pass digital filter, and sensing static deformation of 0.1mm level; frequency shifting millimeter wave radar sampling signals, filtering the frequency-shifted data by using a low-pass digital filter, removing frequency components outside a frequency band required to be refined by the signals, resampling the filtered data, calculating and reordering the data. And carrying out local fine amplification on the frequency of the transformed signal so as to enable the interested frequency band to obtain higher frequency resolution. Thereby improving the distance measurement precision and monitoring the static deformation of 0.1mm level.
S4, sensing dynamic deformation of the building based on micro Doppler by measuring the micro Doppler characteristics of the pyramid surface; the micro-doppler effect is a physical phenomenon produced by micro-motion of an object and its components, in the signal spectrum, the peak component represents the doppler shift caused by the radial velocity of the object movement, and the width of the doppler shift gives an estimate of the velocity dispersion produced by the micro-doppler effect. The micro-doppler effect can be used to determine the kinematic properties of an object. The dynamic deformation of the building can be monitored by the surface vibration of the test point cone. The dynamic deformation of the building is monitored by measuring the micro Doppler characteristics of the pyramid surface.
And S5, forming a three-dimensional static and dynamic model of the building according to the data of different test points received by the radar component 1. And processing data signals according to the data of different test points received by the millimeter wave radar, generating point cloud data, establishing a three-dimensional static and dynamic model of the building, and monitoring the deformation of the building in real time.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the preferred embodiments of the present invention are described in the above embodiments and the description, and are not intended to limit the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. Device based on deformation of millimeter wave radar monitoring high-rise building, its characterized in that: comprises a radar component (1) and a pyramid connected with the radar component (1) through signals; the radar component (1) consists of a radar main body (2), a beam ranging mechanism (3) and a two-way mounting mechanism (4);
the radar main body (2) is arranged on the front surface of the beam ranging mechanism (3) and used for transmitting electromagnetic signals;
the beam ranging mechanism (3) is coaxially arranged with the pyramid and is used for measuring an installation base point of the pyramid;
the two-way mounting mechanism (4) is mounted on the back of the beam ranging mechanism (3) and used for mounting the radar main body (2) transversely and longitudinally.
2. The device for monitoring deformation of a high-rise building based on the millimeter wave radar as claimed in claim 1, wherein: wave beam ranging mechanism (3) are including box body (301), lid (302), install in lid (302) surface through locating hole (303) radar main part (2), box body (301) inside radially is equipped with rather than sliding connection's ejector pin (304), ejector pin (304) play end butt have with box body (301) threaded connection's adjusting screw (305), ejector pin (304) terminal passes through spring A (306) and the inside butt of box body (301).
3. The device for monitoring deformation of a high-rise building based on the millimeter wave radar as claimed in claim 2, wherein: the laser device A (307) is installed at the position, opposite to a lens of the radar main body (2), of the top surface of the box body (301), one side of the laser device A (307) is connected with an angle wheel (308) through a wheel shaft in a rotating mode, a tooth space A (309) is formed in the circumferential outer wall of one side of the angle wheel (308), the tooth space A (309) is connected with a tooth space B (310) of the outer wall of a terminal of the ejector rod (304) in a meshing mode, a laser device B (311) is embedded in the circumferential outer wall of the other side of the angle wheel (308), an angle disc (312) embedded with the box cover (302) is arranged on the outer side of the angle wheel (308), and a pointer (313) sleeved with the end portion of the wheel shaft is arranged on the outer side of the angle disc (312).
4. The device for monitoring deformation of a high-rise building based on the millimeter wave radar as claimed in claim 3, wherein: the positioning holes (303) are radially provided with a plurality of groups, and each group of positioning holes (303) is composed of through holes which are arranged in a triangular shape.
5. The device for monitoring deformation of a high-rise building based on the millimeter wave radar as claimed in claim 3, wherein: and the intersection point of the laser A (307) and the laser B (311) is matched with the position of the lens of the radar main body (2).
6. The device for monitoring deformation of a high-rise building based on the millimeter wave radar as claimed in claim 2, wherein: two to installation mechanism (4) are including locating box body (301) two behind one's back to mounting bracket (401), two are to mounting bracket (401) indulge the U type frame that landing leg (403) are constituteed by an axial rod (402) and two, indulge landing leg (403) upper end and axial rod (402) side and pass through fixed screw A spiro union, expansion screw (404) have all been seted up to the position that axial rod (402) middle part is close to two fixed screw A, just the position interval that axial rod (402) openly is close to the middle part is equipped with two archs (405).
7. The device for monitoring deformation of a high-rise building based on the millimeter wave radar as claimed in claim 6, wherein: two are still set up two wedge spout (406) at box body (301) back including the symmetry to installation mechanism (4), it is equipped with holder (407) to slide in wedge spout (406), holder (407) are inside to have worker's type spare (408) through spring B butt, the worker inslot symmetric pressure of worker's type spare (408) is equipped with two arm lock (409), two size of a dimension that arm lock (409) were embraced and the size adaptation of axial rod (402), and two arm lock (409) are embraced the terminal and are passed through fixed screw B spiro union.
8. The device for monitoring deformation of high-rise buildings based on millimeter wave radar as claimed in claim 7, wherein: two spring holes (410) are parallelly formed in the wedge-shaped sliding groove (406), a spring head (411) is fixedly connected in the spring holes (410) in a rotating mode, a spring C (412) is embedded in the spring head (411), and the head of the spring head (411) is in clamping fit with a head groove in the clamping base (407).
9. The device for monitoring deformation of high-rise buildings based on millimeter wave radar as claimed in claim 7, wherein: the distance between the two protrusions (405) is matched with the distance between the two clamping arms (409) which are axially arranged.
10. The method for monitoring the deformation of the high-rise building based on the millimeter wave radar is characterized by comprising the following steps: s1, positioning and installing the pyramid and the radar component (1) inside and outside the building;
s2, monitoring relative displacement of a plurality of positions inside and outside the building through the radar component (1);
s3, realizing high distance measurement precision through a low-pass digital filter, and sensing static deformation of 0.1mm level;
s4, sensing dynamic deformation of the building based on micro Doppler by measuring the micro Doppler characteristics of the pyramid surface;
and S5, forming a three-dimensional static and dynamic model of the building according to the data of different test points received by the radar component (1).
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN117289263A (en) * | 2023-09-14 | 2023-12-26 | 武汉新朗光电科技有限公司 | Building deformation monitoring radar and monitoring method |
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