CN211717407U - Two-dimensional surface deformation measuring radar and measuring system thereof - Google Patents
Two-dimensional surface deformation measuring radar and measuring system thereof Download PDFInfo
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- CN211717407U CN211717407U CN202020759141.2U CN202020759141U CN211717407U CN 211717407 U CN211717407 U CN 211717407U CN 202020759141 U CN202020759141 U CN 202020759141U CN 211717407 U CN211717407 U CN 211717407U
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Abstract
The utility model discloses a two-dimensional deformation measures radar and measurement system thereof, measure the radar and include receiving antenna and processing terminal, receiving antenna includes the row of lines antenna array and erects row antenna array, processing terminal confirms azimuth, pitch angle and the deformation volume of target according to row of lines antenna array, the received echo signal of each antenna element who erects row antenna array respectively to confirm the deformation volume of target on vertical direction and horizontal direction according to azimuth, pitch angle and radial deformation volume. The measuring system comprises a plurality of marking devices, a distance measuring device and a measuring radar, wherein the marking devices can mark targets, the distance measuring device can measure the distance between each marking device and the measuring radar, the measuring radar can synchronously measure the deformation quantity of a plurality of targets in the vertical direction and the horizontal direction, and the deformation quantity of each target in the vertical direction and the horizontal direction is matched according to the distance between each marking device and the measuring radar.
Description
Technical Field
The utility model relates to an adopt microwave as the measuring equipment field of characteristic, especially relate to a two-dimensional face deformation measurement radar and measurement system thereof.
Background
The differential interference technique is often used for detecting the deformation amount of an object, and the technical principle of the technique is that a continuous wave signal is transmitted to the same target, 2 times of continuous echo signals of the target are received for difference, the phase difference of the 2 times of echo signals is obtained, and the deformation amount of the target is calculated. Since the amount of deformation is calculated from the phase, the detected amount of deformation has a very high accuracy and is widely used.
For example, patent "radar sensor for monitoring deformation of bridge" (publication number CN207456374U) discloses a radar sensor for monitoring, which can accurately detect the deformation of a target by using a differential interference technique. However, such a radar sensor can only detect the amount of deformation of the target in the vertical direction, and cannot detect the amount of deformation of the target in the horizontal direction.
In a patent "two-dimensional surface deformation monitoring system based on microwave interference" (publication number 208721024U), 2 radars are used to measure the deformation of the same target, and the deformation components of the target in the horizontal direction and the vertical direction can be determined according to the positions and the measurement results of the 2 radars. The use of such a measuring system is costly due to the use of more than 2 radars.
SUMMERY OF THE UTILITY MODEL
For solving above technical problem, the utility model provides a two-dimensional face deformation measurement radar and measurement system thereof can measure the deformation volume of target in horizontal direction and vertical side through 1 measurement radar, practices thrift use cost.
The technical scheme is as follows:
in a first aspect, a two-dimensional surface deformation measurement radar is provided, which includes a receiving antenna and a processing terminal, wherein the receiving antenna includes a horizontal antenna array and a vertical antenna array, the processing terminal determines an azimuth angle, a pitch angle and a radial deformation amount of a target according to echo signals received by antenna units of the horizontal antenna array and the vertical antenna array, and determines deformation amounts of the target in a vertical direction and a horizontal direction according to the azimuth angle, the pitch angle and the radial deformation amount.
With reference to the first aspect, in a first implementable manner of the first aspect, the processing terminal further includes a tilt detector, where the tilt detector is configured to detect a tilt angle of the receiving antenna in a vertical direction, and the processing terminal calculates the pitch angle according to the tilt angle.
With reference to the first aspect or the first implementable manner, in a second implementable manner of the first aspect, each of the horizontal antenna array and the vertical antenna array includes at least 3 antenna elements.
In a second aspect, a two-dimensional surface shape change measuring radar system is provided, which comprises a plurality of marking devices and a distance measuring device, wherein the measuring radar is provided;
the marking device is used for marking the target;
the distance measuring device is used for measuring the distance between each marking device and the measuring radar;
and the measuring radar is used for synchronously measuring the deformation quantities of the plurality of targets in the vertical direction and the horizontal direction, and matching the deformation quantities of the targets in the vertical direction and the horizontal direction according to the distance between each marking device and the measuring radar.
With reference to the second aspect, in a first implementable manner of the second aspect, the marking device is an optical marking device, and the distance measuring device is an optical distance meter.
With reference to the first implementable aspect of the second aspect, in a second implementable manner of the second aspect, the optical marking device is a laser emitter and the optical rangefinder is a laser rangefinder sensor.
With reference to the second aspect, in a third implementation manner of the second aspect, the marking device is a radio frequency tag, and the distance measuring device is a radio frequency distance measuring device.
Has the advantages that: adopt the utility model discloses a two-dimensional face deformation measurement radar and measurement system thereof can detect the deformation volume of target in horizontal direction, vertical side simultaneously, and it is high to detect the precision, convenient operation, and use cost is low, and measurement system can detect a plurality of targets simultaneously in step, and detection efficiency is high.
Drawings
Fig. 1 is a block diagram of the system structure of the present invention;
FIG. 2 is a schematic diagram of a receiving antenna;
fig. 3 is a block diagram of the system structure of the measuring system of the present invention.
Detailed Description
The present invention will be further explained with reference to the following examples and drawings.
As shown in fig. 1, the radar includes a receiving antenna and a processing terminal, as shown in fig. 2, the receiving antenna includes a horizontal antenna array 1 and a vertical antenna array 2, the processing terminal determines an azimuth angle, a pitch angle, and a radial deformation amount of a target according to echo signals received by antenna units 3 of the horizontal antenna array 1 and the vertical antenna array 2, respectively, and determines deformation amounts of the target in a vertical direction and a horizontal direction according to the azimuth angle, the pitch angle, and the radial deformation amount.
Specifically, the transmitting antenna of the measuring radar may transmit continuous microwave signals to a target, the microwave signals are reflected by the target and then received by each antenna unit 3 on the receiving antenna and sent to the processing terminal of the measuring radar, and the processing terminal may determine a distance between the target and each antenna unit 3 according to echo signals received by each antenna unit 3. The processing terminal can determine the azimuth angle and the pitch angle of the target respectively by using the principle of trilateration in combination with the spacing distance between each antenna unit 3 in the transverse antenna array 1 and the vertical antenna array 2. The processing terminal can also determine the radial deformation of the target by utilizing a differential interference technology, and finally determines the deformation of the target in the horizontal direction and the vertical direction by combining the azimuth angle and the pitch angle of the target.
Preferably, the mobile terminal further comprises a tilt detector, the tilt detector is configured to detect a tilt of the receiving antenna in a vertical direction, and the processing terminal calculates the pitch angle according to the tilt.
In an actual application scenario, an included angle may exist between the receiving antenna and a horizontal plane, so that the pitch angle data determined by the processing terminal according to the echo signal is actually an angle of the target relative to the plane of the receiving antenna. The inclination angle detector can detect the included angle between the receiving antenna and the horizontal plane, and the pitch angle of the target relative to the horizontal plane can be determined by combining the angle of the target relative to the receiving antenna.
Preferably, the horizontal antenna array 1 and the vertical antenna array 2 each include at least 3 antenna elements 3. The processing terminal can obtain a plurality of measurement data, and the measurement data can be fused by adopting the existing data fusion method, so that the measurement error is reduced.
A system block diagram of a two-dimensional surface profile measuring radar system as shown in fig. 3, the radar system comprises a plurality of marking devices, a distance measuring device and the measuring radar, wherein;
the marking device is used for marking the target;
the distance measuring device is used for measuring the distance between each marking device and the measuring radar;
and the measuring radar is used for synchronously measuring the deformation quantities of the plurality of targets in the vertical direction and the horizontal direction, and matching the deformation quantities of the targets in the vertical direction and the horizontal direction according to the distance between each marking device and the measuring radar.
Specifically, the measuring radar can simultaneously measure the deformation of a plurality of targets, each target can be marked by using a marking device before measurement in order to distinguish the deformation amount corresponding to each target, and the distance measuring device can measure the radial distance from each marked target to the measuring radar in real time. When measuring, the measuring radar can obtain the radial distance from the target to the measuring radar and the deformation amount of each target according to the echo signal of each target, so that the measuring radar can match the deformation amount corresponding to each target according to the radial distance.
Preferably, the marking device is an optical marking device, and the distance measuring device is an optical distance measuring instrument. The optical marking device is placed at the target, the optical distance meter is arranged at the measuring radar, and the optical distance meter can detect the distance between the optical marking device and the target, namely the radial distance between the target and the measuring radar.
Preferably, the optical marking device is a laser emitter, and the optical distance measuring instrument is a laser distance measuring sensor. The laser transmitter can send out laser, and laser rangefinder sensor can detect laser transmitter to measuring radar's radial distance. The laser ranging precision is high, and the laser ranging device is not easy to be interfered.
The second embodiment and the second embodiment are substantially the same as the first embodiment, and the main differences are as follows: the marking device is a radio frequency tag, and the distance measuring device is a radio frequency distance measuring device. The radio frequency tag can send out the radio frequency identification signal, and the radio frequency range unit can confirm the radial distance of each target to measuring radar according to the intensity of radio frequency identification signal. The radio frequency tag is convenient to arrange and low in use cost.
Finally, it should be noted that the above description is only a preferred embodiment of the present invention, and those skilled in the art can make various similar representations without departing from the spirit and the scope of the present invention.
Claims (7)
1. The utility model provides a two-dimensional face deformation measurement radar, includes receiving antenna and processing terminal, its characterized in that: the receiving antenna comprises a transverse antenna array and a vertical antenna array, the processing terminal determines the azimuth angle, the pitch angle and the radial deformation of the target according to the echo signals received by the antenna units of the transverse antenna array and the vertical antenna array, and determines the deformation of the target in the vertical direction and the horizontal direction according to the azimuth angle, the pitch angle and the radial deformation.
2. The two-dimensional surface deformation measuring radar according to claim 1, wherein: the system further comprises an inclination angle detector, wherein the inclination angle detector is used for detecting the inclination angle of the receiving antenna in the vertical direction, and the processing terminal calculates the pitch angle according to the inclination angle.
3. The radar for measuring two-dimensional surface profile according to claim 1 or 2, wherein: the horizontal antenna array and the vertical antenna array both comprise at least 3 antenna units.
4. A radar system for measuring two-dimensional surface shape change is characterized in that: comprising a plurality of marking devices, ranging devices, and a measurement radar according to any one of claims 1 to 3, wherein;
the marking device is used for marking the target;
the distance measuring device is used for measuring the distance between each marking device and the measuring radar;
and the measuring radar is used for synchronously measuring the deformation quantities of the plurality of targets in the vertical direction and the horizontal direction, and matching the deformation quantities of the targets in the vertical direction and the horizontal direction according to the distance between each marking device and the measuring radar.
5. The radar system for two-dimensional surface profile measurement according to claim 4, wherein: the marking device is an optical marking device, and the distance measuring device is an optical distance measuring instrument.
6. The radar system for two-dimensional surface profile measurement according to claim 5, wherein: the optical marking device is a laser emitter, and the optical distance measuring instrument is a laser distance measuring sensor.
7. The radar system for two-dimensional surface profile measurement according to claim 4, wherein: the marking device is a radio frequency tag, and the distance measuring device is a radio frequency distance measuring device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020759141.2U CN211717407U (en) | 2020-05-09 | 2020-05-09 | Two-dimensional surface deformation measuring radar and measuring system thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020759141.2U CN211717407U (en) | 2020-05-09 | 2020-05-09 | Two-dimensional surface deformation measuring radar and measuring system thereof |
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| Publication Number | Publication Date |
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| CN211717407U true CN211717407U (en) | 2020-10-20 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113074653A (en) * | 2021-03-31 | 2021-07-06 | 中煤科工集团重庆研究院有限公司 | Tunnel section deformation monitoring device |
| CN113074652A (en) * | 2021-03-31 | 2021-07-06 | 中煤科工集团重庆研究院有限公司 | Tunnel section deformation monitoring method |
| CN113884034A (en) * | 2021-09-16 | 2022-01-04 | 北方工业大学 | Radar micro-vibration target deformation quantity inversion method and device |
| CN116819533A (en) * | 2023-07-05 | 2023-09-29 | 上海保隆汽车科技股份有限公司 | Radar processing module, radar and radar detection method |
-
2020
- 2020-05-09 CN CN202020759141.2U patent/CN211717407U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113074653A (en) * | 2021-03-31 | 2021-07-06 | 中煤科工集团重庆研究院有限公司 | Tunnel section deformation monitoring device |
| CN113074652A (en) * | 2021-03-31 | 2021-07-06 | 中煤科工集团重庆研究院有限公司 | Tunnel section deformation monitoring method |
| CN113074653B (en) * | 2021-03-31 | 2022-10-14 | 中煤科工集团重庆研究院有限公司 | Tunnel section deformation monitoring device |
| CN113884034A (en) * | 2021-09-16 | 2022-01-04 | 北方工业大学 | Radar micro-vibration target deformation quantity inversion method and device |
| CN113884034B (en) * | 2021-09-16 | 2023-08-15 | 北方工业大学 | Lei Dawei vibration target deformation inversion method and device |
| CN116819533A (en) * | 2023-07-05 | 2023-09-29 | 上海保隆汽车科技股份有限公司 | Radar processing module, radar and radar detection method |
| CN116819533B (en) * | 2023-07-05 | 2024-03-22 | 上海保隆汽车科技股份有限公司 | Radar processing module, radar and radar detection method |
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