CN108680096B - Direction scanning positioning mechanism and radar system - Google Patents
Direction scanning positioning mechanism and radar system Download PDFInfo
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- CN108680096B CN108680096B CN201810735874.XA CN201810735874A CN108680096B CN 108680096 B CN108680096 B CN 108680096B CN 201810735874 A CN201810735874 A CN 201810735874A CN 108680096 B CN108680096 B CN 108680096B
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- 230000001360 synchronised effect Effects 0.000 claims description 36
- 239000003638 chemical reducing agent Substances 0.000 claims description 8
- 230000007547 defect Effects 0.000 abstract 1
- 230000008447 perception Effects 0.000 abstract 1
- 238000012544 monitoring process Methods 0.000 description 9
- 230000005540 biological transmission Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 238000006073 displacement reaction Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000005305 interferometry Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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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
- G01S7/027—Constructional details of housings, e.g. form, type, material or ruggedness
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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
-
- 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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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Computer Networks & Wireless Communication (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Radar Systems Or Details Thereof (AREA)
Abstract
The invention discloses an azimuth scanning positioning mechanism and a radar system, wherein the azimuth scanning positioning mechanism comprises a shell, a power module and a flange, wherein the power module is accommodated in the shell, a first opening is formed in the top of the shell, the flange is arranged above the first opening and is connected with the power module through the first opening, and the power module drives the flange to rotate so as to drive a radar fixed on the flange to rotate for scanning; the radar system uses the azimuth scanning positioning mechanism, the flange connection mode increases the angle of view of the radar, so that the radar has wider field of view, and meanwhile, the power module is accommodated in the shell, so that the radar system is compact in structure and easy to transport. The invention solves the defects of fixed angle of view, larger volume and difficult portability of the azimuth scanning positioning mechanism of the prior micro-change perception early warning radar control system.
Description
Technical Field
The invention relates to a slope radar system device, in particular to a compact azimuth scanning positioning mechanism for a micro-change sensing early warning radar.
Background
The micro-change sensing radar system is mainly used for slope deformation monitoring technology, has the technical advantages of non-contact, high precision, large area, all-weather and 24-hour continuous monitoring all day time, is an important technical means for monitoring and early warning of collapse disasters, and can greatly reduce or avoid the loss of landslide disasters caused by slope displacement deformation to the country and people life and property.
In the typical system at home and abroad at present, the accuracy of acquiring the topographic information by the foundation laser radar is higher, but the accuracy is relatively lower in the aspect of deformation monitoring; the airborne laser radar technology mentioned in the large artificial slope stability foundation InSAR monitoring research is quite difficult to be used for deformation monitoring and has poor precision; application of synthetic aperture radar differential interferometry in seismic deformation monitoring describes the synthetic aperture radar interferometry (InSAR) technique for obtaining ground three-dimensional elevation information with high accuracy using two SAR images.
The micro-change sensing radar at home and abroad has the problems of fixed field angle, large occupied space, difficult portability and the like, is limited to be further widely applied, and is difficult to meet the requirement of mine slope displacement monitoring.
Disclosure of Invention
The invention aims to provide a direction scanning positioning mechanism which is used for a micro-change sensing early warning radar system and has the advantages of wide field of view, small volume, space occupation saving and convenience in transportation.
In order to achieve the above object, the present invention provides the following technical solutions:
an azimuth scanning positioning mechanism for a radar system comprises a shell, a flange and a power module, wherein,
the power module is arranged in the shell, a first opening is formed in the top of the shell, the flange is connected with the power module through the first opening, and the flange is arranged on the first opening of the shell.
Further, the power module comprises a motor, a worm and a synchronous belt module, wherein the motor and the worm are arranged in parallel and are respectively connected with the synchronous belt module, and the motor rotates to drive the synchronous belt module to rotate so as to drive the worm to rotate.
Specifically, the hold-in range module includes first synchronous pulley, second synchronous pulley and hold-in range, first synchronous pulley fixed connection is in on the rotation axis of motor, the second synchronous pulley is fixed on the rotation axis of worm, first synchronous pulley with the second synchronous pulley passes through the hold-in range is connected.
Preferably, an upward annular protrusion is disposed on the outer side of the first opening at the top of the housing, an annular groove matched with the protrusion is formed in the bottom of the flange, and the diameter of the flange is larger than that of the first opening.
Preferably, the power module further comprises a main shaft, a main shaft bearing and an annular base, wherein the main shaft is connected with the flange through the main shaft bearing, the base is fixedly connected with the shell, an outer ring of the main shaft bearing is fixedly connected with the inner side of the base, and an inner ring of the main shaft bearing is connected with the flange and the main shaft; the power module further comprises a worm wheel matched with the worm for use, and the worm wheel is nested and fixed on the outer side of the main shaft.
Further, a circular magnetic grid ring is sleeved outside the main shaft; and a planetary reducer is also arranged between the motor and the first synchronous belt pulley.
Preferably, a second opening is formed in the bottom of the housing, the power module is assembled inside the housing from the second opening, the housing further comprises a bottom plate matched with the second opening, and the bottom plate is buckled with the second opening.
Preferably, the power module further comprises a motor mounting plate and a worm support, wherein the motor mounting plate is used for fixing the motor, and the worm support is used for fixing the worm.
Preferably, screw holes are formed in the top of the flange, and the screw holes are used for fixing the radar through screws.
Based on another concept of the present invention, there is also provided a radar system including the azimuth scanning positioning mechanism in the above-mentioned scheme.
Compared with the prior art, the azimuth scanning positioning mechanism provided by the invention has the following beneficial effects:
according to the azimuth scanning positioning mechanism, the power module is accommodated in the shell, so that the rainproof and dustproof capabilities are enhanced, parts of the power module in the shell are protected, and the bearing scanning positioning mechanism is easy to transport; the first opening which is matched with the flange in size is formed in the top of the shell of the azimuth scanning positioning mechanism, the flange is positioned above the outer side of the shell and is connected with the power module through the first opening, and the power module drives the flange to rotate so as to drive the radar fixed on the flange to rotate and scan, so that the radar field angle of the azimuth scanning positioning mechanism is effectively increased, and the field of view of the radar is wider.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and do not constitute a limitation on the invention. In the drawings:
FIG. 1 is a schematic diagram of an azimuth scanning positioning mechanism module;
FIG. 2 is a schematic diagram of an assembled structure of an azimuth scanning positioning mechanism;
FIG. 3 is a schematic cross-sectional view of a first view of an azimuth scanning positioning mechanism;
FIG. 4 is a schematic cross-sectional view of a second view of the azimuth scanning positioning mechanism;
reference numerals:
101-a shell, 102-a shell bottom plate;
2-power module, 201-motor;
202-a planetary reducer, 2031-a first synchronous pulley;
2032-a timing belt, 2033-a second timing pulley;
204-worm, 205-worm wheel;
206-spindle, 207-spindle bearing;
2071-an outer ring of the main shaft bearing, 2072-an inner ring of the main shaft bearing;
2073-spindle bearing ball, 208-round magnetic grating;
209-motor mounting plate, 210-base;
3-flange.
Detailed Description
In order to make the above objects, features and advantages of the present invention more comprehensible, the following description of the embodiments accompanied with the accompanying drawings will be given in detail. It will be apparent that the described embodiments are only some, but not all, embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be noted that the terms "top," "bottom," "front," "rear," "left," "right," "vertical," "horizontal," "inner," "outer," "transverse," "longitudinal," and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, merely to facilitate description of the present invention and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
Example 1
Referring to fig. 1, the azimuth scanning positioning mechanism provided in the present embodiment is used in a radar system, and includes a housing 101, a flange 3 and a power module 2, wherein,
the shell 101 is hollow to accommodate the power module 2, and the shell 101 is cuboid, so that the power module is maximally matched with the overall shape of the power module 2, and the occupied space is saved; the flange 3 is circular and is matched with the power module, a circular first opening is formed in the top of the shell, the flange is connected with the power module 2 through the first opening, and the flange 3 is arranged on the first opening of the shell.
According to the azimuth scanning positioning mechanism provided by the embodiment, the power module is accommodated in the shell 101, and the shell can be made of wear-resistant and corrosion-resistant materials, so that the rainproof and dustproof capabilities are enhanced, the parts of the power module 2 in the shell 101 are protected, and the transportation is easy; according to the azimuth scanning positioning mechanism, the first opening which is matched with the flange 3 in size is formed in the top of the shell 101, the flange 3 is located above the outer side of the shell 101 and is connected with the power module 2 through the second opening, the power module 2 drives the flange 3 to rotate, and then the radar fixed on the flange 3 is driven to rotate for scanning, so that the radar field angle of the azimuth scanning positioning mechanism is effectively increased, and the radar field of view is wider.
Example two
Referring to fig. 2, 3 or 4, in the azimuth scanning positioning mechanism provided in this embodiment, the power module 2 includes a motor 201, a worm 204 and a synchronous belt module, where the motor 201 and the worm 204 are arranged in parallel and are respectively connected with the synchronous belt module, and the motor 201 rotates to drive the synchronous belt module to rotate, so as to drive the worm to rotate.
The synchronous belt module includes a first synchronous pulley 2031, a second synchronous pulley 2033, and a synchronous belt 2032, where the first synchronous pulley 2031 is fixedly connected to a rotating shaft of the motor 201, the second synchronous pulley 2033 is fixed to the rotating shaft of the worm 204, parts such as an expansion sleeve, a shaft retainer ring, a bearing, etc. are added between the second synchronous pulley 2033 and the rotating shaft of the worm 204, wear is reduced, and meanwhile, connection is more stable, and the first synchronous pulley 2031 and the second synchronous pulley 2033 are connected through the synchronous belt 2032.
The planetary reducer 202 is further installed between the motor 201 and the first synchronous pulley 2031, parts such as an expansion sleeve, a spacer sleeve and a cover end are further installed between the planetary reducer 202 and the first synchronous pulley 2031, connection is firmer due to convenient connection, in the working process, rotation power is transmitted to the first synchronous pulley 2031 after the rotation of the motor 201 is regulated through the planetary reducer 202, and the first synchronous pulley 2031 drives the second synchronous pulley 2033 to rotate through the synchronous belt 2032, so that the worm 204 is driven to rotate.
The transmission chain adopts synchronous belt transmission, and the motor 201 and the planetary reducer 202 are arranged on one side of the worm 204 in parallel, so that the motor and the planetary reducer are prevented from being directly connected with the worm to cause the side surface of the azimuth rotary table to be extended to be long, the azimuth scanning positioning mechanism of the embodiment is compact in structure, the size of the azimuth scanning positioning mechanism is reduced to the greatest extent, and the occupied space is saved.
The azimuth scanning positioning mechanism provided by the embodiment designs the transmission system into an independent module, namely the power module 2, and can be integrally detached from the shell 101, so that the maintenance is convenient.
Example III
Referring to fig. 2, 3 or 4, in the azimuth scanning positioning mechanism provided in this embodiment, the diameter of the flange 3 is larger than the diameter of the first opening at the top of the housing 101, an upward annular protrusion is provided at the outer side of the first opening, an annular groove matched with the protrusion is provided at the bottom of the flange 3, and the width and depth of the groove are slightly larger than the width and height of the protrusion on the housing 101, so that friction between the flange 3 and the housing 101 during rotation is avoided, and meanwhile, positional offset caused by overlarge flange rotation torque is avoided.
Referring to fig. 2, 3 or 4, in the azimuth scanning positioning mechanism provided in this embodiment, the power module 2 further includes a main shaft 206, a main shaft bearing 207 and an annular base 210, wherein the main shaft 206 is connected with the flange 3 through the main shaft bearing 207, the middle of the annular base 210 is higher than the outer end surface to form a protrusion, the protruding outer side of the base 210 is fixedly connected with the housing 101, the protruding inner side of the base 210 is fixedly connected with the main shaft bearing outer ring 2071, the flange 3 and the main shaft bearing inner ring 2072 are correspondingly provided with longitudinal through holes, the flange 3 is fixedly connected with the main shaft bearing inner ring 2072 from above by screws, and the main shaft 206 is fixedly connected with the main shaft bearing 207 from below the inner ring 2072 by screws.
The power module 2 further comprises a worm wheel 205 matched with the worm 204, and the worm wheel 205 is nested and fixed on the outer side of the main shaft 206; screw holes are formed in the top of the flange 3 and used for fixing the radar through screws; in the working process, after the power generated by the motor 201 is transmitted to the worm 204, the rotating power is transmitted to the main shaft 206 through worm and gear transmission, the main shaft 206 drives the flange 3 to rotate through the inner ring of the main shaft bearing 207, and then the radar installed on the flange 3 is driven to rotate for scanning, and the radar is driven to rotate by the flange 3, so that the radar field angle is increased, and the radar field of view is wider; the circular magnetic grating ring is sleeved outside the main shaft to perform high-precision angular displacement measurement, so that the rotation scanning angle of the radar is more accurate.
In this embodiment, the worm and worm wheel transmission is adopted, and the original transverse rotation shaft is converted into the longitudinal rotation shaft, so that the main shaft 206 is arranged above the motor 201, the synchronous belt module and the worm 204, and the whole structure is more compact, the volume is smaller, the occupied space is further saved, and the portable device is small and exquisite.
Example IV
Referring to fig. 2, 3 or 4, in the azimuth scanning positioning mechanism provided in the present embodiment, a second opening is formed at the bottom of the housing 101, and after the power module 2 is assembled inside the housing 101 from the second opening, the base 210 is fixed to the housing 101, so that the power module 2 is fixed in the housing 1, so as to avoid severe shaking of the power module 2 caused by motor vibration; in addition, the power module 2 further comprises a motor mounting plate 209 and a worm support, wherein the motor mounting plate 209 is used for fixing the motor 201, the worm support is used for fixing the worm 204, the motor mounting plate 209 and the worm support are equal in height and are arranged below the main shaft 206, and the power module 2 is further stable.
The casing 101 still includes with second opening assorted bottom plate 102, after the casing 101 is gone into with power module 2 assembly, the second opening of casing 101 bottom is lived with the bottom plate 102 lock, simultaneously, supports motor mounting panel 209 and worm support after the bottom plate 102 lock, further improves power module 2's steadiness, avoids violent rocking in the course of the work, and the equipment operation process is also succinct more convenient. Meanwhile, the side face of the shell 101 is in a hollowed-out design, so that the state of electronic components can be conveniently monitored at any time, heat dissipation is facilitated, and the service life of the azimuth scanning positioning mechanism is prolonged.
Example five
The present embodiment provides a radar system, which is mainly used for slope deformation monitoring, and uses the azimuth scanning positioning mechanism in the first embodiment to the fourth embodiment to fix the radar and drive the radar to rotate for scanning, and has the advantages of wide field of view, small volume, space saving, convenient transportation, etc., and the azimuth scanning mechanism adopted by the radar system in the present embodiment has the same structure as the above embodiment, and is not described herein.
The foregoing is merely illustrative of the present invention, and the present invention is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (7)
1. An azimuth scanning positioning mechanism for a radar system is characterized in that the azimuth scanning positioning mechanism comprises a shell, a flange and a power module, wherein,
the shell is hollow to accommodate the power module, the top of the shell is provided with a first opening, the flange is connected with the power module through the first opening, and the flange is arranged above the first opening of the shell;
the power module comprises a motor, a worm and a synchronous belt module, wherein the motor and the worm are arranged in parallel and are respectively connected with the synchronous belt module, and the motor rotates to drive the synchronous belt module to rotate so as to drive the worm to rotate;
the power module further comprises a main shaft, a main shaft bearing and an annular base, wherein the main shaft is connected with the flange through the main shaft bearing, the base is fixedly connected with the shell, the outer ring of the main shaft bearing is fixedly connected with the inner side of the base, and the inner ring of the main shaft bearing is connected with the flange and the main shaft; the power module further comprises a worm wheel matched with the worm for use, and the worm wheel is nested and fixed on the outer side of the main shaft;
screw holes are formed in the top of the flange and used for fixing the radar through screws.
2. The azimuth scanning positioning mechanism according to claim 1, wherein the timing belt module includes a first timing belt pulley fixedly connected to a rotation shaft of the motor, a second timing belt pulley fixed to a rotation shaft of the worm, and a timing belt, the first timing belt pulley and the second timing belt pulley being connected by the timing belt.
3. The azimuth scanning positioning mechanism according to claim 1, wherein an upward annular protrusion is provided on the outer side of the first opening at the top of the housing, an annular groove is provided on the bottom of the flange, which is engaged with the protrusion, and the diameter of the flange is larger than the diameter of the first opening.
4. The azimuth scanning positioning mechanism according to claim 2, wherein a circular magnetic grid ring is sleeved outside the main shaft; and a planetary reducer is also arranged between the motor and the first synchronous belt pulley.
5. The azimuth scanning positioning mechanism of claim 1, wherein a second opening is formed in the bottom of the housing, the power module is assembled inside the housing from the second opening, and the housing further comprises a bottom plate matched with the second opening, and the bottom plate is buckled with the second opening.
6. The azimuth scanning positioning mechanism of claim 3, wherein the power module further comprises a motor mounting plate for securing the motor and a worm support for securing the worm.
7. A radar system comprising an azimuth scanning positioning mechanism according to any one of claims 1 to 6.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810735874.XA CN108680096B (en) | 2018-07-06 | 2018-07-06 | Direction scanning positioning mechanism and radar system |
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| CN201810735874.XA CN108680096B (en) | 2018-07-06 | 2018-07-06 | Direction scanning positioning mechanism and radar system |
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| CN109752714B (en) * | 2018-12-29 | 2023-07-14 | 内蒙古工业大学 | Rotary radar micro-variation monitoring data processing method and radar system |
| CN110110625A (en) * | 2019-04-24 | 2019-08-09 | 北方工业大学 | SAR image target identification method and device |
| CN110346762A (en) * | 2019-06-28 | 2019-10-18 | 江苏维航精仪科技有限公司 | A kind of radar scanning system for multimachine building map |
| CN110994125A (en) * | 2019-12-09 | 2020-04-10 | 芜湖乐创电子科技有限公司 | High-reliability radar antenna base |
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