Multi-source rapid three-dimensional scanning system

Abstract

The utility model provides a multi-source rapid three-dimensional scanning system, which comprises a plurality of signal modules, a waveguide structure and a reflection structure, and is characterized in that each signal module is used for generating a transmitting wave beam, receiving a reflection wave beam reflected by the reflection structure, and obtaining material level measurement information of a material level target based on the transmitting wave beam and the reflection wave beam; the waveguide structure is fixed to the signal module and used for guiding the transmitting wave beam to the reflection structure and guiding the reflection wave beam, reflected by the reflection structure, of an incident wave beam reflected by a material level target to the signal module. The reflection structure is used for reflecting the multiple emission wave beams generated by the multiple signal modules to the multiple measurement point positions of the material level target and reflecting the incident wave beams reflected by the material level target to form the reflection wave beams. According to the invention, a plurality of signal modules designed on a curved surface and a reflecting structure designed in a paraboloid shape are adopted, so that three-dimensional rapid scanning of a material level target is realized.

Description

Technical Field

[0001] The present disclosure relates to the field of three-dimensional scanning technology, and in particular, to a multi-source fast three-dimensional scanning system. Background Art

[0002] When measuring the position information of a level target, an existing 3D radar transmits the transmission signal generated by a feed source directly to the level target through an antenna, and then receives the reflected signal reflected back by the level target. The level measurement information of the level target is obtained by processing and analyzing the transmitted and received signals. The signal gain in this level measurement information acquisition process is average, and the scanning cycle is long.

[0003] In addition, it is well known that parabolic antennas have strong gain, but traditional microwave parabolic antennas can only measure the location information of one point. If the user wants to increase the measurement requirements of one location, he needs to add an antenna, which puts great pressure on the installation space and high costs.

[0004] With the continuous development of communication technology, more and more users now have higher requirements for the efficiency of radar measurement, transportation and maintenance costs. Therefore, there is an urgent need for a scanning system with stronger gain and improved scanning efficiency in this field. Summary of the invention

[0005] The present disclosure provides a multi-source fast three-dimensional scanning system, which is used to solve the technical problems of low gain and long scanning period of the existing level measurement system.

[0006] In order to achieve the above-mentioned object, the present disclosure provides a multi-source fast three-dimensional scanning system, including multiple signal modules, a waveguide structure and a reflection structure, wherein:

[0007] Each of the signal modules is used to generate a transmission beam and receive a reflection beam after being reflected by the reflection structure, and to obtain level measurement information of a level target based on the transmission beam and the reflection beam;

[0008] The waveguide structure is fixed on the signal module, and is used to guide the transmission beam to the reflection structure, and guide the reflection beam after the incident beam reflected by the level target is reflected by the reflection structure to the signal module;

[0009] The reflection structure is used to reflect the multiple transmission beams generated by the multiple signal modules to the multiple measurement points of the level target, and to reflect the multiple incident beams reflected by the level target to form a plurality of reflection beams.

[0010] According to the multi-source fast three-dimensional scanning system of at least one embodiment of the present disclosure, the plurality of signal modules are arranged on the same curved surface or on different curved surfaces.

[0011] According to the multi-source fast three-dimensional scanning system of at least one embodiment of the present disclosure, the reflection structure is designed to be a parabola, and the curved surface orientation of the reflection structure designed in the parabola shape is arranged opposite to the curved surface orientation of the multiple signal modules arranged on the curved surface, so that the multiple transmission beams generated by the multiple signal modules are guided to the reflection structure through the waveguide structure, and the multiple transmission beams are reflected by the reflection structure to the multiple measurement points of the level target.

[0012] The multi-source fast three-dimensional scanning system according to at least one embodiment of the present disclosure further includes a lens device, which is shared by the plurality of signal modules.

[0013] According to at least one embodiment of the present disclosure, the multi-source fast three-dimensional scanning system further includes a shell, and the plurality of signal modules, waveguide structures and reflection structures are all arranged in the shell.

[0014] According to at least one embodiment of the multi-source fast three-dimensional scanning system disclosed herein, the fixed bracket further includes a fixed bracket and a driving device, wherein the fixed bracket is fixedly connected to the shell, and the driving device is used to drive the fixed bracket to rotate, thereby driving the plurality of signal modules, waveguide structures and reflection structures to rotate synchronously, thereby achieving three-dimensional scanning of the level target.

[0015] According to the multi-source fast three-dimensional scanning system of at least one embodiment of the present disclosure, the driving device drives the signal module, waveguide structure and reflection structure to rotate at a preset fixed rotation speed or a regularly changing rotation speed.

[0016] The multi-source fast three-dimensional scanning system according to at least one embodiment of the present disclosure further includes a housing, a fixing member and a fixing bracket.

[0017] The reflective structure is fixedly arranged in the housing through the fixing member;

[0018] The plurality of signal modules and the waveguide structure are fixedly mounted in the housing via the fixing bracket.

[0019] According to at least one embodiment of the multi-source rapid three-dimensional scanning system of the present disclosure, the multi-source rapid three-dimensional scanning system further includes a driving device, which is used to drive the fixed bracket to rotate, thereby driving the multiple signal modules and the waveguide structure to rotate synchronously to achieve three-dimensional scanning of the level target.

[0020] According to at least one embodiment of the multi-source fast three-dimensional scanning system of the present disclosure, it also includes a displacement mechanism, which is used to adjust the movement of the shell to different positions, so as to realize position measurement of different measurement points of the level target by multiple signal modules, thereby obtaining level measurement information of the level target.

[0021] According to the multi-source fast three-dimensional scanning system of at least one embodiment of the present disclosure, the waveguide structure is arranged corresponding to the signal module.

[0022] According to the multi-source fast three-dimensional scanning system of at least one embodiment of the present disclosure, the initial angles at which the plurality of signal modules are arranged on the curved surface are different.

[0023] The present disclosure provides a multi-source fast three-dimensional scanning system, comprising a plurality of signal modules, a waveguide structure and a reflection structure; wherein each of the signal modules is used to generate a transmission beam and receive a reflection beam reflected by the reflection structure, and obtain level measurement information of a level target based on the transmission beam and the reflection beam; the waveguide structure is fixed on the signal module, and is used to guide the transmission beam to the reflection structure, and to guide the reflected beam reflected by the level target after the incident beam is reflected by the reflection structure to the signal module; the reflection structure is used to reflect the plurality of transmission beams generated by the plurality of signal modules to a plurality of measurement points of the level target, and to reflect the incident beam reflected by the level target to form the reflection beam. The multi-source fast three-dimensional scanning system disclosed in the present invention adopts multiple signal modules designed on a curved surface, and guides multiple transmission beams to a parabolic reflection structure through a waveguide structure, and then reflects the parabolic reflection structure and emits it to the level target through a lens device. The incident beam after reflection by the level target is reflected by the lens device and the reflection structure for the second time to form a reflected beam, and the reflected beam is guided to the signal module again through the waveguide structure, thereby realizing multi-point scanning or three-dimensional fast scanning of the level target. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The accompanying drawings are used to provide a further understanding of the present disclosure and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present disclosure but do not constitute a limitation of the present disclosure. In the accompanying drawings:

[0025] Figure 1 This is a schematic diagram of the structure of a multi-source fast three-dimensional scanning system provided by the present invention. Figure 1 ;

[0026] Figure 2 This is a schematic diagram of the structure of a multi-source fast three-dimensional scanning system provided by the present invention. Figure 2 ;

[0027] Figure 3 It is a schematic diagram of the relationship between the signal module and the waveguide structure disclosed in the present invention.

[0028] Summary of reference numerals:

[0029] 1. Signal module; 2. Waveguide structure; 3. Reflection structure;

[0030] 4. Shell; 5. Fixed bracket; 6. Driving device;

[0031] 7. Fixing part; 8. Lens device; 9. Intermediate part;

[0032] 10. Support table. DETAILED DESCRIPTION

[0033] The specific implementation of the present disclosure is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described herein is only used to illustrate and explain the present disclosure, and is not used to limit the present disclosure.

[0034] like Figure 1 As shown, the present disclosure provides a multi-source fast three-dimensional scanning system, including multiple signal modules 1, waveguide structures 2 and reflection structures 3. Each of the signal modules 1 is used to generate a transmission beam and receive a reflection beam reflected by the reflection structure 3, and obtain the level measurement information of the level target based on the transmission beam and the reflection beam; the waveguide structure 2 is fixed on the signal module 1, and is used to guide the transmission beam to the reflection structure 3, and guide the incident beam reflected by the level target to the signal module 1 after being reflected by the reflection structure 3; the reflection structure 3 is used to reflect the multiple transmission beams generated by the multiple signal modules 1 to multiple measurement points of the level target, and reflect the multiple incident beams reflected by the level target to form multiple reflection beams. The multi-source fast three-dimensional scanning system disclosed in the present invention adopts a plurality of signal modules 1 designed on a curved surface. The plurality of transmission beams generated by the plurality of signal modules 1 are guided to the reflection structure 3 of parabolic design through the waveguide structure 2, and then reflected by the reflection structure 3 of parabolic design and emitted to the level target through the lens device. The incident beam after reflection by the level target is sequentially reflected by the lens device 8 and the reflection structure 3 for the second time to form a reflection beam, and the reflection beam is guided to the signal module 1 again through the waveguide structure 2, thereby realizing multi-point scanning or three-dimensional fast scanning of the level target.

[0035] In addition, the present disclosure first guides the multiple transmission beams generated by the multiple signal modules 1 to the parabolic design reflection structure 3 through the waveguide structure 2, thereby realizing directional transmission of signals. The most important thing is that the present disclosure adopts multiple signal modules 1 to simultaneously transmit multiple transmission beams, which are then reflected to multiple measurement points of the level target through the parabolic design reflection structure 3, thereby realizing level measurement of multiple measurement points of the same level target.

[0036] Among them, according to the multi-source fast three-dimensional scanning system of at least one embodiment of the present disclosure, in order to avoid interference between the transmission beams emitted by different signal modules 1, the waveguide structure 2 is preferably set corresponding to the signal module 1, that is, a waveguide structure 2 is set corresponding to the signal output end of each signal module 1, and each waveguide structure 2 is used to guide the transmission beam generated by the corresponding signal module 1 to the reflection structure 3 with a parabolic design, thereby realizing directional transmission of the signal to the reflection structure 3, so that the signal converges to the reflection structure 3 with a parabolic design and then reflects out, so that the signal gain is stronger.

[0037] According to the multi-source fast three-dimensional scanning system of at least one embodiment of the present disclosure, the initial angles of the multiple signal modules 1 set on the curved surface are different. In the present disclosure, multiple signal modules 1 are set on the curved surface, and a parabolic reflective structure 3 with a parabolic design is set on the opposite side of the curved surface. By setting the initial angles of the multiple signal modules 1 to be different, multiple transmission beams can be emitted to different positions on the parabolic reflective structure 3 with a parabolic design, thereby reflecting outgoing beams in multiple directions, and thus emitting to multiple measurement points of the level target.

[0038] The existing signal module 1 is usually only provided at one and is provided at the focal position of the parabola structure, so that the reflected beam is gathered and received, thereby achieving a high gain effect. Although this method has a stronger gain than ordinary horn antennas, the detection cycle of measuring the entire level target is not much different from the prior art. However, in order to achieve a high gain effect while shortening the material detection cycle and improving the scanning efficiency, multiple signal modules 1 are provided in the present disclosure, that is, multiple signal modules 1 simultaneously transmit multiple transmission beams to the parabola-shaped reflection structure 3, and preferably, the initial angles of the multiple signal modules 1 are different, thereby achieving multiple transmission beams to different positions on the parabola, and then reflecting multiple outgoing beams in different directions, multiple outgoing beams to the level target, multiple incident beams after being reflected by the level target to the parabola-shaped reflection structure 3, and multiple reflected beams are formed after secondary reflection of the reflection structure 3, and multiple reflected beams are gathered and received under the action of the parabola design, and guided to multiple signal modules 1 through the waveguide structure 2, thereby obtaining the position measurement information of multiple measurement points on the level target.

[0039] According to the multi-source fast three-dimensional scanning system of at least one embodiment of the present disclosure, multiple signal modules 1 are arranged on the same curved surface. It should be noted that the multiple signal modules 1 are arranged on the same curved surface so that the transmission beam emitted by the signal module 1 can be reflected to different positions on the level target after being directed to the parabolic reflective structure 3. Among them, the multiple signal modules 1 can be distributed regularly or irregularly on the curved surface. Among them, the curved surface can be spatially distributed, and the spatial distribution can be regular or irregular, as long as the outgoing beam after reflection by the reflective structure 3 is directed to different positions of the level target. Since the reflective structure 3 is designed as a parabola, the curved surface orientation of the reflective structure 3 of the parabola design and the curved surface orientation of the multiple signal modules 1 arranged on the curved surface need to be arranged relative to each other. Such a design can make the multiple transmission beams generated by the multiple signal modules 1 guided to the reflective structure 3 through the waveguide structure 2, and the multiple transmission beams are reflected to multiple measurement points of the level target through the reflective structure 3.

[0040] Alternatively, according to the multi-source fast three-dimensional scanning system of at least one embodiment of the present disclosure, a plurality of the signal modules 1 are arranged on different curved surfaces. It should be noted that the plurality of signal modules 1 are arranged on different curved surfaces because after the transmission beams emitted by the plurality of signal modules 1 are directed to the parabolic reflective structure 3, there may be beam shielding areas in the process of being reflected to different positions on the level target. For this reason, the plurality of signal modules 1 are arranged on different curved surfaces. On the one hand, it can be ensured that the outgoing beam after being reflected by the reflective structure 3 can reach the level target without shielding (if the beam is directed to the shielding area, there may be ineffective reflected beams), and on the other hand, the plurality of transmission beams can be emitted to the reflective structure 3 and reflected to multiple measuring points of the level target. Among them, the plurality of signal modules 1 can be distributed on the curved surface in a regular or irregular manner, as long as the outgoing beam after being reflected by the reflective structure 3 is directed to different positions of the level target. Since the reflection structure 3 is designed to be a parabola, the curved surface orientation of the reflection structure 3 with a parabola design and the curved surface orientation of the multiple signal modules 1 arranged on the curved surface need to be arranged opposite to each other. Such a design allows the multiple transmission beams generated by the multiple signal modules 1 to be guided to the reflection structure 3 via the waveguide structure 2, and the multiple transmission beams are reflected to the multiple measurement points of the level target via the reflection structure 3.

[0041] According to at least one embodiment of the multi-source fast three-dimensional scanning system disclosed herein, the lens device 8 is shared by a plurality of the signal modules 1. By adding the lens device 8, the outgoing beam reflected by the parabolic reflective structure 3 and the incident beam reflected by the level target can be converged again for transmission and reception, thereby increasing the intensity of the transmission and reception signals.

[0042] Specifically, in one embodiment of the present disclosure, Figure 1 As shown, the plurality of signal modules 1, waveguide structure 2 and reflection structure 3 can be arranged in the housing 4. The multi-source fast three-dimensional scanning system can also include a fixed bracket 5 and a driving device 6, wherein the fixed bracket 5 is fixedly connected to the housing 4, and the driving device 6 is used to drive the fixed bracket 5 to rotate, thereby driving the plurality of signal modules 1, waveguide structure 2 and reflection structure 3 to rotate synchronously, so as to realize three-dimensional scanning of the level target. That is to say, the plurality of outgoing beams reflected by the reflection structure 3 will be emitted to the plurality of measuring points on the level target through the lens device 8. Since the rotation of the fixed bracket 5 driven by the driving device 6 will drive the signal module 1 and the waveguide structure 2 to rotate accordingly, the plurality of signal modules 1 will perform three-dimensional scanning on the level target during the rotation process. At this time, if the beam angle of a single emission of the plurality of signal modules 1 can cover the level target, the driving device 6 drives the signal module 1 to rotate one circle to obtain the level measurement information of the level target, and then the level measurement information (three-dimensional scanning data information) with the same effect can be obtained in a shorter detection cycle, thereby greatly shortening the scanning cycle and correspondingly greatly improving the scanning efficiency.

[0043] In this embodiment, if Figure 1 As shown, the above-mentioned reflection structure 3 and the multiple signal modules 1 and the waveguide structure 2 are arranged opposite to each other up and down, the top of the reflection structure 3 can be fixedly connected to the top of the housing 1 by a fixing member 7, and the reflection structure 3 and the middle of the curved surface where the signal module 1 is located can be fixedly connected by a connecting member, so that the multiple signal modules 1, the waveguide structure 2 and the reflection structure 3 are all arranged in the housing 4. Alternatively, the reflection structure 3 and the multiple signal modules 1 and the waveguide structure 2 are all fixedly connected to the top of the housing 1 by the fixing member 7. At this time, the fixing member 7 passes through the center position of the reflection structure 3 to the curved surface where the signal module 1 is located. At this time, the reflection structure 3, the waveguide structure 2, and the signal module 1 are fixedly arranged in the housing 4 through the fixing member 7.

[0044] In this embodiment, the driving device 6 drives the signal module 1, the waveguide structure 2 and the reflective structure 3 to rotate at a preset fixed speed or a regularly changing speed. That is, the driving device 6 drives the signal module 1, the waveguide structure 2 and the reflective structure 3 to rotate at a fixed speed and at a uniform rate; or to rotate at a speed that changes regularly; or to rotate at a preset fixed speed and at a uniform rate within a preset time period, and then to rotate at a regularly changing speed in a cross motion or reciprocating motion.

[0045] Alternatively, in another embodiment of the present disclosure, the multi-source fast three-dimensional scanning system of the present disclosure may further include a shell 4, a fixing member 7, a fixing bracket 5 and a driving device 6, wherein the reflection structure 3 is fixedly arranged in the shell 4 by the fixing member 7; and the plurality of signal modules 1 and the waveguide structure 2 are independently fixedly installed in the shell 4 by the fixing bracket 5. The driving device 6 is used to drive the fixing bracket 5 to rotate, thereby driving the plurality of signal modules 1 and the waveguide structure 2 to rotate synchronously, so as to realize three-dimensional scanning of the level target. In other words, the plurality of outgoing beams reflected by the reflection structure 3 will be emitted to the plurality of measuring points on the level target through the lens device, and the rotation of the fixing bracket 5 driven by the driving device 6 will drive the signal module 1 and the waveguide structure 2 to rotate accordingly, so that the plurality of signal modules 1 will perform three-dimensional scanning of the level target during the rotation process. At this time, if the beam angle of a single emission of multiple signal modules 1 can cover the level target, then the driving device 6 can drive the signal module 1 to rotate one circle to obtain the level measurement information of the level target, and then the level measurement information (three-dimensional scanning data information) with the same effect can be obtained within a shorter detection cycle. Therefore, the scanning cycle is greatly shortened and the scanning efficiency is correspondingly greatly improved.

[0046] In the above embodiment, if Figure 2 As shown, specifically, the fixed bracket 5 can be movably connected to the side of the curved surface where the signal module 1 and the waveguide structure 2 are located that is not facing the reflective structure 3 through the middle piece 9, and a support table 10 can be provided on the side of the curved surface where the signal module 1 and the waveguide structure 2 are located that is not facing the reflective structure 3. The fixed bracket 5 is fixedly connected to the support table 10, and the driving device 6 is provided on the support table 10. The driving device 6 drives the middle piece 9 to rotate to drive multiple signal modules 1 and the waveguide structure 2 to rotate synchronously. Of course, this is only one possible implementation method. Any structure that can drive multiple signal modules 1 and the waveguide structure 2 to rotate directly or indirectly through the driving device 6 belongs to the protection scope of this solution and will not be repeated here.

[0047] In this embodiment, the driving device 6 drives the signal module 1 and the waveguide structure 2 to rotate at a preset fixed speed or a regularly changing speed. That is, the driving device 6 drives the signal module 1 and the waveguide structure 2 to rotate at a fixed speed, or at a speed that changes regularly, or at a cross motion or reciprocating motion, etc., at a preset fixed speed for a preset time period, and then at a speed that changes regularly.

[0048] According to at least one embodiment of the multi-source fast three-dimensional scanning system of the present disclosure, it may also include a displacement mechanism, which is used to adjust the movement of the shell 4 in the above two embodiments to different positions, so as to realize the position measurement of different measuring points of the level target by multiple signal modules 1, and then obtain the level measurement information of the level target.

[0049] like Figure 3 As shown, the signal module 1 and the waveguide structure 2 can be integrated in an antenna housing to form a radar probe body.

[0050] In the above two embodiments, the driving device 6 drives the rotation of the fixed bracket 5, thereby driving the multiple signal modules 1 and the waveguide structure 2 to rotate synchronously. The multiple signal modules 1 will generate multiple coaxial annular point cloud data (a group of three-dimensional scanning data) as the fixed bracket 5 rotates. The displacement mechanism will generate multiple groups of coaxial annular point cloud data of the level target (multiple groups of three-dimensional scanning data), thereby making the point cloud data obtained by the three-dimensional scanning denser, and more accurate level data information and three-dimensional curve information will be obtained after analysis.

[0051] The preferred embodiments of the present disclosure are described in detail above in conjunction with the accompanying drawings; however, the present disclosure is not limited to the specific details in the above embodiments; within the technical concept of the present disclosure, a variety of simple modifications may be made to the technical solution of the present disclosure, and these simple modifications all fall within the protection scope of the present disclosure.

[0052] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present disclosure will not further describe various possible combinations.

[0053] In addition, various embodiments of the present disclosure may be arbitrarily combined, and as long as they do not violate the concept of the present disclosure, they should also be regarded as the contents disclosed by the present disclosure.

Claims

1. A multi-source fast three-dimensional scanning system, characterized in that: It includes multiple signal modules, waveguide structures and reflection structures, among which: Each of the signal modules is used to generate a transmission beam and receive a reflection beam after being reflected by the reflection structure, and to obtain level measurement information of the level target based on the transmission beam and the reflection beam; The waveguide structure is fixed on the signal module, and is used to guide the transmission beam to the reflection structure, and guide the reflection beam after the incident beam reflected by the level target is reflected by the reflection structure to the signal module; The reflection structure is used to reflect the multiple transmission beams generated by the multiple signal modules to the multiple measurement points of the level target, and to reflect the multiple incident beams reflected by the level target to form a plurality of reflection beams.

2. The multi-source fast three-dimensional scanning system according to claim 1, characterized in that: The plurality of signal modules are arranged on the same curved surface or on different curved surfaces.

3. The multi-source fast three-dimensional scanning system according to claim 2, characterized in that: The reflective structure is designed to be parabolic, and the curved surface orientation of the reflective structure designed in the parabolic shape is arranged opposite to the curved surface orientation of the multiple signal modules arranged on the curved surface, so that the multiple transmission beams generated by the multiple signal modules are guided to the reflective structure through the waveguide structure, and the multiple transmission beams are reflected by the reflective structure to the multiple measurement points of the level target.

4. The multi-source fast three-dimensional scanning system according to claim 1, characterized in that: It also includes a lens device, which is shared by a plurality of the signal modules.

5. The multi-source fast three-dimensional scanning system according to claim 1, characterized in that: It also includes a shell, and the plurality of signal modules, the waveguide structure and the reflection structure are all arranged in the shell.

6. The multi-source fast three-dimensional scanning system according to claim 5, characterized in that: It also includes a fixed bracket and a driving device, wherein the fixed bracket is fixedly connected to the shell, and the driving device is used to drive the fixed bracket to rotate, thereby driving the multiple signal modules, waveguide structures and reflection structures to rotate synchronously to achieve three-dimensional scanning of the level target.

7. The multi-source fast three-dimensional scanning system according to claim 1, characterized in that: It also includes a shell, a fixing part and a fixing bracket, The reflective structure is fixedly arranged in the housing through the fixing member; The plurality of signal modules and the waveguide structure are fixedly mounted in the housing via the fixing bracket.

8. The multi-source fast three-dimensional scanning system according to claim 7, characterized in that: It also includes a driving device, which is used to drive the fixed bracket to rotate, thereby driving the multiple signal modules and the waveguide structure to rotate synchronously to achieve three-dimensional scanning of the level target.

9. The multi-source fast three-dimensional scanning system according to claim 6 or 8, characterized in that: It also includes a displacement mechanism, which is used to adjust the movement of the shell to different positions, so as to achieve position measurement of different measurement points of the level target by multiple signal modules, and then obtain the level measurement information of the level target.

10. The multi-source fast three-dimensional scanning system according to claim 2, characterized in that: The initial angles at which the plurality of signal modules are arranged on the curved surface are different.

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