Photogrammetry plumbing device adjusting device
By designing a photogrammetry projector adjustment device including a fixed part, a position adjustment part and an attitude adjustment part, the problem that the prior art projector cannot automatically adjust the position and focal length is solved, and high-precision automatic adjustment is realized, which is suitable for large-size surface measurement.
Patent Information
- Application Number
- CN202510383105.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-28
- Publication Date
- 2025-06-06
AI Technical Summary
In the prior art, the photogrammetry projector cannot automatically adjust the position and focal length, resulting in a decrease in measurement accuracy. Especially when measuring large-size surfaces, manual adjustment is difficult and affecting the measurement quality.
A photogrammetry projector adjustment device including a fixed part, a position adjustment part and an attitude adjustment part is designed. The position, orientation and pitch adjustment of the point-injector is realized through the rotating parts, drive adjustment components, gears and motor drives, and the focus distance is adjusted through the focus mechanism.
The automatic position and focus adjustment of the photogrammetry projector is realized, the measurement accuracy is improved, and the difficulty of manual operation is reduced. It is suitable for large-size surface measurements.
Smart Images
Figure CN120101010A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of satellite testing and measurement, and in particular to a photogrammetry point-casting device adjustment device. Background Art
[0002] The terahertz radiometer requires a large-aperture reflector antenna to achieve high ground resolution. However, due to the limitations of manufacturing process capabilities, transportation convenience, carrier openness and other factors, the antenna is divided into eight reflective panels, which are processed separately and then spliced together, which is more advantageous than integral forming in terms of technical maturity and manufacturing cost. However, gaps between the reflective panels are inevitable after splicing.
[0003] The gap destroys the continuity of the reflecting surface, and the electromagnetic field irradiated at the gap cannot radiate along the axis, reducing the gain of the antenna. The electromagnetic waves scattered from the gap will destroy the far-field pattern of the antenna, causing the far side lobe of the antenna to rise, which in turn causes noise and temperature rise. Therefore, for terahertz radiometers that pursue extreme sensitivity, it is crucial to reasonably control the gaps between the reflective panels so that the loss of receiving area caused by the gaps is within an acceptable range.
[0004] With the increasing demand for seam measurement accuracy and the continuous improvement of digital measurement methods, photogrammetry technology has been widely used in the field of seam measurement due to its high efficiency and accurate acquisition of three-dimensional information of the object surface. Currently, dense point cloud data can be quickly acquired through photogrammetry equipment, and the three-dimensional coordinate information of the surface position of the measured object can be directly measured.
[0005] At present, the photogrammetry point projector is completed by manual operation, that is, the position relationship between the photogrammetry point projector and the measured surface is manually adjusted, and the photogrammetry operation is performed after adjusting the focal length. For large-sized surfaces, the photogrammetry point projector is manually moved and adjusted at a high position, which makes it difficult to adjust the position relationship between the surface and the photogrammetry point projector. At the same time, the photogrammetry point projector is at a high position and the focal length cannot be adjusted, which reduces the quality of point projection during photogrammetry and directly affects the measurement accuracy of photogrammetry. Summary of the invention
[0006] The purpose of the present invention is to solve the shortcomings of the prior art and provide a photogrammetry point adjustment device, comprising: The fixing part comprises a bracket assembly and a rotating member rotatably connected to the bracket assembly; A position adjustment part, comprising a support frame connected to the rotating member and a drive adjustment component arranged at the bottom of one end of the support frame, wherein the drive adjustment component is connected to the gear of the rotating member; The posture adjustment part is arranged at the top of one end of the support frame which is not connected with the fixing part.
[0007] Furthermore, the support assembly includes a back plate, a front plate and a pull rod; the rotating member includes a rotating shaft, a passive rotating wheel and a limiting column; The back plate is connected to the front plate through a pull rod to fix the photogrammetry point-casting device; The front plate is connected to the back plate through a pull rod to fix the photogrammetry point-casting device; The pull rod realizes the connection between the front plate and the back plate; The rotating shaft is connected to the front plate to realize the azimuth rotation of the position adjustment part, and the adjustment range is 0° to 180°; The passive rotating wheel is located at the lower part of the rotating shaft and is used to drive the rotation of the position adjusting part; The limiting column is arranged on the front plate to limit the rotation range of the position adjustment part.
[0008] Furthermore, the drive adjustment assembly includes a driving wheel, a first reducer, a first motor, and a pitch changing mechanism; The support is mounted on the rotating shaft and connected to both ends of the rotating shaft to achieve position adjustment of the supporting photogrammetry projector; The first motor is disposed at the lower end of the support frame to drive the support frame to rotate around the rotating shaft; The reducer is arranged at the lower end of the support frame and connected to the first motor; The driving wheel is arranged at the lower end of the support frame and is connected to the output end of the first reducer. The driving wheel drives the passive wheel to realize the rotation of the support frame. The variable distance mechanism is arranged at the end of the support frame to adjust the radius of the photogrammetry projector when the position adjustment part rotates, and the adjustment range is 0 to 600 mm.
[0009] Furthermore, the pitch-changing mechanism includes a second motor, a push cylinder, a first linear guide rail, a second linear guide rail, a side plate, a slide plate, and a baffle; The second motor is arranged at one end of the push cylinder to provide power for the extension and retraction of the push cylinder; The push cylinder is arranged above the support frame to drive the photogrammetry point projector to adjust the radius; The first linear guide rail is arranged above the support frame to realize the linear motion of the slide plate; The second linear guide rails are arranged on both sides of the support frame and connected to the side plates; The side plates are arranged on both sides of the slide plate, the upper ends of the side plates are connected to the slide plate, and the lower ends are connected to the second linear guide rail; The baffle is arranged at the front end of the support frame to limit the position of the slide plate when it moves.
[0010] Furthermore, the posture adjustment unit includes an azimuth bracket, a pitch bracket, a hoop, a bracket, an active roller, a supporting roller, a third motor, a second reducer, a fourth motor, a fifth motor, a turntable, and a roller bracket; The turntable is arranged above the slide plate, and its rotation axis is connected to the azimuth bracket to realize the azimuth adjustment of the photogrammetry projector, and its adjustment range is 0° to 360°; The fourth motor is connected to the input shaft of the turntable to realize the driving of the photogrammetry projection device for azimuth adjustment; The azimuth bracket is arranged on the upper part of the rotating shaft of the turntable to realize the support of the azimuth adjustment of the photogrammetry projector; The pitch bracket is arranged above the azimuth bracket, and the pitch bracket can be rotated relative to the azimuth bracket to adjust the pitch direction of the photogrammetry projector, and the adjustment range is: 0° to 120°; The bracket is arranged on one side of the pitch bracket to support the second reducer; The second reducer is arranged on one side of the bracket, and its output shaft is connected to the pitch bracket; The third motor is arranged at one side of the second reducer and connected to the input shaft of the second reducer to realize the driving of the pitch bracket adjustment; The clamp is arranged on the pitch bracket to fix the photogrammetry projector; The roller bracket is arranged on the head of the photogrammetry projector to support the active roller and the supporting roller; The active roller is arranged above the roller bracket, and fits with the fine-tuning knob of the photogrammetry projector, and can drive the fine-tuning knob to rotate to realize the focusing of the photogrammetry projector; The support roller is arranged below the roller bracket, one on each side, and fits with the fine-tuning knob of the photogrammetry projector to achieve support for the fine-tuning knob of the photogrammetry projector during rotation adjustment.
[0011] Compared with the prior art, the present invention has the following beneficial effects: The present invention provides a fixing part, a position adjustment part, and a posture adjustment part of a photogrammetric point projector adjustment device; the fixing part realizes the overall fixing of the photogrammetric point projector adjustment device, the position adjustment part realizes the position adjustment of the photogrammetric point projector within a certain circumferential range; the posture adjustment part realizes the adjustment of the azimuth and pitch posture of the photogrammetric point projector, and the focusing mechanism in the posture adjustment part realizes the adjustment of the focal length of the photogrammetric point projector. The present invention realizes the automatic position adjustment and focusing of the photogrammetric point projector without manual adjustment, and solves the problem that the photogrammetric point projector cannot be arranged and adjusted during large-scale photogrammetry measurement. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] By reading the detailed description of the preferred embodiments below, various other advantages and benefits will become clear to those skilled in the art. The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings: Figure 1 It is a structural schematic diagram of the photogrammetry point-casting device adjustment device of the present invention; Figure 2 It is a schematic diagram of the fixing part of the photogrammetry point-casting device adjusting device of the present invention; Figure 3 It is a schematic diagram of a position adjustment portion of the photogrammetry point-casting device of the present invention; Figure 4 It is a schematic diagram of a distance-changing mechanism in a position adjustment part of a photogrammetry point-casting device of the present invention; Figure 5 It is a schematic diagram of a posture adjustment part of the photogrammetry point-casting device of the present invention; Description of reference numerals: 1: fixing part; 2: position adjustment part; 3: posture adjustment part; 4: point-casting device; 101: back plate; 102: front plate; 103: pull rod; 104: rotating shaft; 105: passive wheel; 106: limiting column; 201: supporting frame; 202: first reducer; 203: driving wheel; 204: first motor; 205: pitch-changing mechanism; 2051: second motor; 2052: push cylinder; 2053: Slide plate; 2054: side plate; 2055: first linear guide rail; 2056: second linear guide rail; 2057: baffle plate; 301: azimuth bracket; 302: pitch bracket; 303: clamp; 304: bracket; 305: active roller; 306: supporting roller; 307: third motor; 308: second reducer; 309: fourth motor; 310: fifth motor; 311: turntable; 312: roller bracket. DETAILED DESCRIPTION
[0013] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods. It should be understood that the specific implementation methods described herein are only used to explain the present invention and are not used to limit the present invention.
[0014] In order to simplify the drawings, only the parts related to the present invention are schematically shown in each figure, and they do not represent the actual structure of the product. In addition, in order to simplify the drawings and facilitate understanding, in some figures, only one of the parts with the same structure or function is schematically drawn or marked. In this article, "one" not only means "only one", but also means "more than one".
[0015] First embodiment See also Figure 1-5 The technical solution of a photogrammetry point adjustment device provided in this embodiment includes the following: See also Figure 1 , In one embodiment, a photogrammetry point projector adjustment device includes a fixing part 1, a position adjustment part 2, and a posture adjustment part 3; The fixing part 1 is arranged on one side of the photogrammetry point-casting device as a whole, and is used for fixing and adjusting the whole device; The position adjustment part 2 is arranged on the fixing part 1, and is used to carry the posture adjustment part 3 and realize the position adjustment of the photogrammetry projector 4; The posture adjustment unit 3 is arranged on the position adjustment unit 2 and is used for adjusting the spatial posture and focal length of the photogrammetry projector 4. The specific structure of this embodiment is further described below: See also Figure 2 In this embodiment, the fixing part 1 includes a back plate 101, a front plate 102, a pull rod 103, a rotating shaft 104, a passive rotating wheel 105, and a limiting column 106; The back plate 101 is connected to the front plate 102 through a tie rod 103 to fix the entire photogrammetry point adjustment device; The rotating shaft 104 is connected to the front plate 102 to realize the azimuth rotation of the position adjustment part 2; The passive rotating wheel 105 is located at the lower part of the rotating shaft 104 and is used to drive the rotation of the position adjustment part 2; The limiting post 106 is disposed on the front plate 102 to limit the rotation range of the position adjustment part 2 .
[0016] See also Figure 3 In this embodiment, the position adjustment unit 2 includes a support frame 201, a driving wheel 203, a first reducer 202, a first motor 204, and a pitch changing mechanism 205; The support frame 201 is disposed on the rotating shaft 104 and connected to both ends of the rotating shaft 104 to achieve position adjustment of the supporting photogrammetry projector 4; The first motor 202 is disposed at the lower end of the support frame 201 to drive the support frame 201 to rotate around the rotation axis 104; The first reducer 202 is disposed at the lower end of the support frame 201 and connected to the first motor 204; The driving wheel 203 is disposed at the lower end of the support frame 201 and is connected to the output end of the first reducer 202. The driving wheel 203 drives the driven wheel 105 to realize the rotation of the support frame 201. The variable distance mechanism 205 is disposed at the end of the support frame 201 to enable the photogrammetry projector 4 to adjust the radius when the position adjustment unit 2 rotates.
[0017] See also Figure 4 In this embodiment, the pitch changing mechanism 205 includes a second motor 2051, a push cylinder 2052, a first linear guide rail 2055, a second linear guide rail 2056, a side plate 2054, a slide plate 2053, and a baffle 2057; The second motor 2051 is disposed at one end of the push cylinder 2052 to provide power for the extension and retraction of the push cylinder 2052; The push cylinder 2052 is disposed above the support frame 201 to drive the photogrammetry point projector 4 to adjust the radius; The first linear guide rail 2055 is disposed above the support frame 201 to achieve linear motion of the slide plate 2053; The second linear guide rails 2056 are disposed on both sides of the support frame 201 and connected to the side plates 2054; The side plates 2054 are disposed on both sides of the slide plate 2053, with the upper ends thereof connected to the slide plate 2053 and the lower ends thereof connected to the second linear guide rail 2056; The baffle 2057 is disposed at the front end of the support frame 201 to limit the position of the slide plate 2053 when it moves.
[0018] See also Figure 5 In this embodiment, the attitude adjustment unit 3 includes an azimuth bracket 301, a pitch bracket 302, a hoop 303, a bracket 304, an active roller 305, a supporting roller 306, a third motor 307, a second reducer 308, a fourth motor 309, a fifth motor 310, a turntable 311, and a roller bracket 312; The turntable 311 is disposed above the slide plate 2053, and its rotation axis is connected to the azimuth bracket 301 to achieve azimuth adjustment of the photogrammetry projector 4; The fourth motor 309 is connected to the input shaft of the turntable 311 to realize the driving of the photogrammetry projection device 4 for azimuth adjustment; The azimuth bracket 301 is arranged on the upper part of the rotating shaft of the turntable 311 to realize the support of the azimuth adjustment of the photogrammetry projector 4; The pitch bracket 302 is arranged above the azimuth bracket 301, and the pitch bracket 302 can rotate relative to the azimuth bracket 301 to achieve the adjustment of the pitch direction of the photogrammetry projector 4; The bracket 304 is disposed on one side of the pitch bracket 302 to support the second reducer 308; The second reducer 308 is disposed on one side of the bracket 304, and its output shaft is connected to the pitch bracket 302; The third motor 307 is disposed at one side of the second reducer 308 and connected to the input shaft of the second reducer 308 to achieve the driving of the pitch bracket 302 for adjustment; The clamp 303 is arranged on the pitch bracket 302 to fix the photogrammetry projector 4; The roller bracket 312 is arranged at the head of the photogrammetry point projector 4 to support the active roller 305 and the supporting roller 306; The active roller 305 is disposed above the roller bracket 312 and fits with the fine-tuning knob of the photogrammetry projector 4, and can drive the fine-tuning knob to rotate to achieve the focusing of the photogrammetry projector 4; The supporting rollers 306 are arranged below the roller bracket 312, one on each side, and fit with the fine-tuning knob of the photogrammetry projector 4 to support the fine-tuning knob of the photogrammetry projector 4 during rotation adjustment.
[0019] The working principle or working process of a photogrammetry point-casting device adjustment device provided by the present invention is as follows: First, the front plate 102 and the back plate 101 of the fixing part 1 are used to fix the photogrammetry projector adjustment device at the required height for measuring the projected points through the pull rod 103. The first motor 204 drives the driving wheel 203 through the first reducer 202. The driving wheel 203 cooperates with the passive wheel 105 to rotate the support frame 201 around the rotating shaft 104. After the rotation is in place, the second motor 2051 in the pitch-changing mechanism 205 drives the push cylinder 2052 to adjust the position of the posture adjustment part 3; after the position is adjusted to the right position, the third motor 307 and the fourth motor 309 in the posture adjustment part 3 respectively drive the photogrammetry projector 4 to adjust the azimuth and pitch posture, so that the photogrammetry projector 4 can be aligned with the surface of the measured object. Finally, the fifth motor 310 drives the active roller 305 to adjust the focal length of the projected point of the photogrammetry projector 4 until the points projected on the surface of the measured object are clear and regular, and all adjustments of the photogrammetry projector 4 are completed.
[0020] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.
Claims
1. A photogrammetry point-casting device adjustment device, characterized in that: include: The fixing part comprises a bracket assembly and a rotating member rotatably connected to the bracket assembly; A position adjustment part, comprising a support frame connected to the rotating member and a drive adjustment component arranged at the bottom of one end of the support frame, wherein the drive adjustment component is connected to the gear of the rotating member; The posture adjustment part is arranged at the top of one end of the support frame which is not connected with the fixing part.
2. The photogrammetry point adjustment device according to claim 1, characterized in that: The support assembly includes a back plate, a front plate and a pull rod; the rotating member includes a rotating shaft, a passive rotating wheel and a limiting column; The back plate is connected to the front plate through a pull rod to fix the photogrammetry point-casting device; The front plate is connected to the back plate through a pull rod to fix the photogrammetry point-casting device; The pull rod realizes the connection between the front plate and the back plate; The rotating shaft is connected to the front plate to realize the azimuth rotation of the position adjustment part, and the adjustment range is 0° to 180°; The passive rotating wheel is located at the lower part of the rotating shaft and is used to drive the rotation of the position adjusting part; The limiting column is arranged on the front plate to limit the rotation range of the position adjustment part.
3. The photogrammetry point adjustment device according to claim 1, characterized in that: The drive adjustment assembly includes a driving wheel, a first reducer, a first motor, and a pitch changing mechanism; The support is mounted on the rotating shaft and connected to both ends of the rotating shaft to achieve position adjustment of the supporting photogrammetry projector; The first motor is disposed at the lower end of the support frame to drive the support frame to rotate around the rotating shaft; The reducer is arranged at the lower end of the support frame and connected to the first motor; The driving wheel is arranged at the lower end of the support frame and is connected to the output end of the first reducer. The driving wheel drives the passive wheel to realize the rotation of the support frame. The variable distance mechanism is arranged at the end of the support frame to adjust the radius of the photogrammetry projector when the position adjustment part rotates, and the adjustment range is 0 to 600 mm.
4. The photogrammetry point adjustment device according to claim 3, characterized in that: The pitch-changing mechanism comprises a second motor, a push cylinder, a first linear guide rail, a second linear guide rail, a side plate, a slide plate, and a baffle; The second motor is arranged at one end of the push cylinder to provide power for the extension and retraction of the push cylinder; The push cylinder is arranged above the support frame to drive the photogrammetry point projector to adjust the radius; The first linear guide rail is arranged above the support frame to realize the linear motion of the slide plate; The second linear guide rails are arranged on both sides of the support frame and connected to the side plates; The side plates are arranged on both sides of the slide plate, the upper ends of the side plates are connected to the slide plate, and the lower ends are connected to the second linear guide rail; The baffle is arranged at the front end of the support frame to limit the position of the slide plate when it moves.
5. The photogrammetry point adjustment device according to claim 1, characterized in that: The posture adjustment unit includes an azimuth bracket, a pitch bracket, a hoop, a bracket, an active roller, a supporting roller, a third motor, a second reducer, a fourth motor, a fifth motor, a turntable, and a roller bracket; The turntable is arranged above the slide plate, and its rotation axis is connected to the azimuth bracket to realize the azimuth adjustment of the photogrammetry projector, and its adjustment range is 0° to 360°; The fourth motor is connected to the input shaft of the turntable to realize the driving of the photogrammetry projection device for azimuth adjustment; The azimuth bracket is arranged on the upper part of the rotating shaft of the turntable to realize the support of the azimuth adjustment of the photogrammetry projector; The pitch bracket is arranged above the azimuth bracket, and the pitch bracket can be rotated relative to the azimuth bracket to adjust the pitch direction of the photogrammetry projector, and the adjustment range is: 0° to 120°; The bracket is arranged on one side of the pitch bracket to support the second reducer; The second reducer is arranged on one side of the bracket, and its output shaft is connected to the pitch bracket; The third motor is arranged at one side of the second reducer and connected to the input shaft of the second reducer to realize the driving of the pitch bracket adjustment; The clamp is arranged on the pitch bracket to fix the photogrammetry projector; The roller bracket is arranged on the head of the photogrammetry projector to support the active roller and the supporting roller; The active roller is arranged above the roller bracket, and fits with the fine-tuning knob of the photogrammetry projector, and can drive the fine-tuning knob to rotate to realize the focusing of the photogrammetry projector; The support roller is arranged below the roller bracket, one on each side, and fits with the fine-tuning knob of the photogrammetry projector to achieve support for the fine-tuning knob of the photogrammetry projector during rotation adjustment.