CN109781141B - Calibration method and device of cubic prism group - Google Patents
Calibration method and device of cubic prism group Download PDFInfo
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- CN109781141B CN109781141B CN201811639862.3A CN201811639862A CN109781141B CN 109781141 B CN109781141 B CN 109781141B CN 201811639862 A CN201811639862 A CN 201811639862A CN 109781141 B CN109781141 B CN 109781141B
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Abstract
The embodiment of the invention discloses a calibration method and a calibration device for a cubic prism set, relates to the technical field of aerospace, and mainly aims to solve the problem that the cost of a cubic prism set mechanical test is high. The technical scheme of the invention comprises the following steps: calculating a first coordinate value corresponding to the first cubic prism and a second coordinate value corresponding to the second cubic prism according to the light spot returned to the light spot image plane by the cubic prism group; adjusting the position of the light spot image plane image light spot reflected by the first cubic prism after the mechanical test to make the first coordinate value consistent with the first coordinate value after the mechanical test before the mechanical test, and calculating a third coordinate value corresponding to the second cubic prism; and determining whether the difference value between the second coordinate value and the third coordinate value is smaller than a preset error threshold value.
Description
Technical Field
The embodiment of the invention relates to the technical field of aerospace, in particular to a method and a device for calibrating a cubic prism group.
Background
With the development of communication technology, the popularization and application of artificial satellites, also called artificial satellites, have been rapidly developed. At present, the artificial satellite is the spacecraft which is the fastest in development and the most widely used.
The method is characterized in that collimation measurement is required to be carried out before satellite launching so as to ensure accurate shooting when the artificial satellite launches, mechanical testing needs to be carried out on the stability of the cubic prism group in the collimation measurement, and an expensive theodolite needs to be used in the mechanical testing of the stability of the cubic prism group, so that the mechanical testing cost of the cubic prism group is directly and greatly increased, and therefore, the problem that how to reduce the mechanical testing cost of the cubic prism group needs to be solved urgently at present is solved.
Disclosure of Invention
In view of this, the embodiment of the present invention provides a calibration method and apparatus for a cubic prism set, and mainly aims to solve the problem of high cost of a cubic prism set mechanical test.
In order to solve the above problems, embodiments of the present invention mainly provide the following technical solutions:
in a first aspect, an embodiment of the present invention provides a calibration method for a cubic prism group, where the method includes:
calculating a first coordinate value corresponding to the first cubic prism and a second coordinate value corresponding to the second cubic prism according to the light spot returned to the light spot image plane by the cubic prism group; the device comprises a main mirror connecting plate, a cubic prism group, a first coordinate value and a second coordinate value, wherein the cubic prism group is arranged on the main mirror connecting plate and comprises a first cubic prism and a second cubic prism, a certain included angle relationship exists between the first cubic prism and the second cubic prism, the first coordinate value is a coordinate value corresponding to the first cubic prism which is not subjected to a mechanical test, and the second coordinate value is a coordinate value corresponding to the second cubic prism which is not subjected to the mechanical test;
adjusting the position of the light spot image plane image light spot reflected by the first cubic prism after the mechanical test to make the first coordinate value consistent with the first coordinate value after the mechanical test before the mechanical test, and calculating a third coordinate value corresponding to the second cubic prism, wherein the third coordinate value is the coordinate value corresponding to the second cubic prism after the mechanical test;
and determining whether the difference value between the second coordinate value and the third coordinate value is smaller than a preset error threshold value.
Optionally, before calculating a first coordinate value corresponding to the first cube prism and a second coordinate value corresponding to the second cube prism according to the light spot returned by the cube prism group to the light spot image plane, the method further includes:
and setting the light spots of the first cubic prism and the second cubic prism to transmit to the center of the light spot image plane diagram.
Optionally, before calculating a first coordinate value corresponding to the first cube prism and a second coordinate value corresponding to the second cube prism according to the light spot returned by the cube prism group to the light spot image plane, the method further includes:
after being split by a laser beam splitter, laser beams emitted by the laser source are respectively transmitted to the first cubic prism and the second cubic prism on the primary mirror connecting plate;
and the first cubic prism and the second cubic prism respectively receive and reflect the laser beams to the spot image plane.
Optionally, after laser beams emitted by the laser source are split by the laser beam splitter, the laser beams are respectively transmitted to the first cubic prism and the second cubic prism on the primary mirror connecting plate, and the method further includes:
the laser beam emitted by the laser source is split by the laser beam splitter and transmitted to the spherical lens;
transmitting the laser beam to the first and second cube prisms on a primary mirror attachment plate, respectively, by the spherical lens;
receiving and reflecting the laser beam to the spherical lens by the first cubic prism and the second cubic prism respectively;
and transmitting the laser beams sent by the first cubic prism and the second cubic prism to the spot image plane by the spherical lens respectively.
In a second aspect, an embodiment of the present invention further provides a calibration apparatus for a cubic prism group, where the apparatus includes:
the first calculation unit is used for calculating a first coordinate value corresponding to the first cubic prism and a second coordinate value corresponding to the second cubic prism according to the light spot returned to the light spot image plane by the cubic prism group; the device comprises a main mirror connecting plate, a cubic prism group, a first coordinate value and a second coordinate value, wherein the cubic prism group is arranged on the main mirror connecting plate and comprises a first cubic prism and a second cubic prism, a certain included angle relationship exists between the first cubic prism and the second cubic prism, the first coordinate value is a coordinate value corresponding to the first cubic prism which is not subjected to a mechanical test, and the second coordinate value is a coordinate value corresponding to the second cubic prism which is not subjected to the mechanical test;
the adjusting unit is used for adjusting the position of the light spot image plane image light spot reflected by the first cubic prism after the mechanical test so as to enable the first coordinate value to be consistent with the first coordinate value after the mechanical test before the mechanical test;
the second calculation unit is used for calculating a third coordinate value corresponding to the second cubic prism, and the third coordinate value is a coordinate value corresponding to the second cubic prism after the mechanical test is carried out;
and the determining unit is used for determining whether the difference value between the second coordinate value and the third coordinate value is smaller than a preset error threshold value.
Optionally, the apparatus further comprises:
and the setting unit is used for setting the light spots of the first cubic prism and the second cubic prism to be transmitted to the center of the light spot image plane image before the first calculating unit calculates the first coordinate value corresponding to the first cubic prism and the second coordinate value corresponding to the second cubic prism according to the light spots returned to the light spot image plane image by the cubic prism group.
Optionally, the apparatus further comprises:
the first transmission unit is used for transmitting laser beams emitted by the laser source to the first cubic prism and the second cubic prism on the main mirror connecting plate after being split by the laser beam splitter before the first calculation unit calculates a first coordinate value corresponding to the first cubic prism and a second coordinate value corresponding to the second cubic prism according to the light spots returned to the light spot image plane by the cubic prism group;
a first receiving unit for receiving the laser beams by the first and second cube prisms, respectively;
and the first reflecting unit is used for reflecting the laser beam to the light spot image plane by the first cubic prism and the second cubic prism.
Optionally, the apparatus further comprises:
the second transmission unit is used for transmitting the laser beams emitted by the laser source to the spherical lens after being split by the laser beam splitter before the laser beams are respectively transmitted to the first cubic prism and the second cubic prism on the main mirror connecting plate after being split by the first transmission unit;
a first transmission unit for transmitting the laser beam to the first and second cube prisms on the primary mirror attachment plate, respectively, by the spherical lens;
a second receiving unit for receiving the laser beams by the first and second cube prisms, respectively;
a second reflecting unit for reflecting the laser beam to the spherical lens by the first and second cubic prisms;
and the second transmission unit is used for transmitting the laser beams sent by the first cubic prism and the second cubic prism to the spot image plane by the spherical lens respectively.
In a third aspect, an embodiment of the present invention further provides an electronic device, where the electronic device includes:
at least one processor;
and at least one memory, bus connected with the processor; wherein the content of the first and second substances,
the processor and the memory complete mutual communication through the bus;
the processor is configured to call program instructions in the memory to execute the calibration method of the cubic prism group according to any one of the first aspect.
In a fourth aspect, embodiments of the present invention further provide a non-transitory computer-readable storage medium storing computer instructions, which cause the computer to execute the calibration method for a cube prism group according to any one of the first aspect.
By the technical scheme, the technical scheme provided by the embodiment of the invention at least has the following advantages:
according to the calibration method and device of the cubic prism group, provided by the embodiment of the invention, a first coordinate value corresponding to a first cubic prism and a second coordinate value corresponding to a second cubic prism are calculated according to a light spot returned by the cubic prism group to a light spot image plane; adjusting the position of the first cubic prism after the mechanical test to make the first coordinate value before the mechanical test consistent with the first coordinate value after the mechanical test, and calculating a third coordinate value corresponding to the second cubic prism; and judging the stability of the cubic prism group according to the difference value between the second coordinate value and the third coordinate value to complete the mechanical test of the cubic prism group. Compared with the conventional theodolite for mechanical testing, the method has the advantage that the cost for completing the mechanical testing is reduced on the premise of completing the mechanical testing of the cubic prism group.
The foregoing description is only an overview of the technical solutions of the embodiments of the present invention, and the embodiments of the present invention can be implemented according to the content of the description in order to make the technical means of the embodiments of the present invention more clearly understood, and the detailed description of the embodiments of the present invention is provided below in order to make the foregoing and other objects, features, and advantages of the embodiments of the present invention more clearly understandable.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the embodiments of the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:
fig. 1 shows a flowchart of a calibration method for a cubic prism group according to an embodiment of the present invention;
FIG. 2 is a flow chart illustrating another method for calibrating a cubic prism group according to the disclosed embodiment of the invention;
FIG. 3 is a block diagram illustrating a calibration apparatus for a cubic prism group according to an embodiment of the disclosure;
FIG. 4 is a block diagram showing another calibration apparatus for a cubic prism group according to the disclosed embodiment of the present invention;
fig. 5 shows a schematic diagram of a framework of an electronic device according to an embodiment of the disclosure.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
The embodiment of the invention provides a calibration method and a calibration device for a cubic prism set, and mainly aims to solve the problem that the cost of a mechanical test of the cubic prism set is high. In the embodiment disclosed in the present invention, by completing the mechanical test of the cubic prism set while reducing the cost early, the embodiment disclosed in the present invention provides a calibration method of the cubic prism set, as shown in fig. 1, the method includes:
101. and calculating a first coordinate value corresponding to the first cubic prism and a second coordinate value corresponding to the second cubic prism according to the light spot returned to the light spot image plane by the cubic prism group.
In practical application, the cubic prism combination mechanical test in the embodiment disclosed by the invention is mainly applied to launching of missiles, satellites and the like, and the accurate launching of the launching is ensured by detecting the stability of the optical-mechanical structure before and after the mechanical test, so that the launching task is better completed.
In the embodiment disclosed by the invention, the cubic prism group is arranged on the main mirror connecting plate, the cubic prism group comprises a first cubic prism and a second cubic prism, and the cubic prism group can comprise but is not limited to the cubic prisms so as to ensure that each surface can reflect the laser to the photoelectric sensor to form a light spot.
The light spot image plane map is generated on a photoelectric sensor, in the embodiment disclosed by the invention, the photoelectric sensor can be a CCD image sensor, and the coordinate values corresponding to the positions of the light spots in the light spot image plane map are calculated according to the reflection of the first cubic prism and the second cubic prism, and the method for calculating the coordinate values can include, but is not limited to, the following: and setting a coordinate system in the CCD image sensor, and calculating coordinate values according to the positions of the light spots reflected by the cubic prism group in the coordinate system. In the embodiment disclosed in the present invention, the first cubic prism and the second cubic prism may include one cubic prism or a cubic prism group formed by a plurality of cubic prisms, and specifically, the embodiment disclosed in the present invention does not limit the number of the cubic prisms.
102. And adjusting the position of the light spot image plane image light spot reflected by the first cubic prism after the mechanical test to make the first coordinate value consistent with the first coordinate value after the mechanical test before the mechanical test, and calculating a third coordinate value corresponding to the second cubic prism.
In the embodiment disclosed by the invention, the first cubic prism is fixed on the primary mirror connecting plate, in order to detect the change condition of the optical-mechanical structure before and after the mechanical test, the change condition of the relative position of the cubic prism group needs to be calculated, and the purpose of adjusting the position of the spot image plane image light spot reflected by the first cubic prism after the mechanical test is to take the first cubic prism as a reference object with unchanged position before and after the mechanical test. The adjustment method may include, but is not limited to, the following: finely adjusting the position of a CCD image sensor in the optical machine structure; the position of the second cubic prism is controlled to be unchanged, and the base for placing the first cubic prism is adjusted. It should be noted that, after the adjustment of the mechanical test, when the first cubic prism is reflected to the position of the light spot in the light spot image plane diagram, the position of the second cubic prism is fixed, and a third coordinate value is calculated according to the position of the light spot reflected in the light spot image plane diagram by the second cubic prism.
103. And determining whether the difference value between the second coordinate value and the third coordinate value is smaller than a preset error threshold value.
In the embodiment disclosed by the invention, before a mechanical test is carried out, an error threshold needs to be preset, whether the difference value of the coordinate values of the reflection light spot of the second cubic prism is smaller than the preset error threshold is determined, so as to judge whether the stability of the optical-mechanical structure meets the requirement, when the difference value between the second coordinate value and the third coordinate value is smaller than the preset error threshold, the stability of the optical-mechanical structure is judged to meet the requirement, and when the difference value between the second coordinate value and the third coordinate value is larger than or equal to the preset error threshold, the stability of the optical-mechanical structure is judged not to meet the requirement, and adjustment is needed.
According to the calibration method of the cubic prism group provided by the embodiment of the invention, a first coordinate value corresponding to a first cubic prism and a second coordinate value corresponding to a second cubic prism are calculated according to a light spot returned by the cubic prism group to a light spot image plane; adjusting the position of the first cubic prism after the mechanical test to make the first coordinate value before the mechanical test consistent with the first coordinate value after the mechanical test, and calculating a third coordinate value corresponding to the second cubic prism; and judging the stability of the cubic prism group according to the difference value between the second coordinate value and the third coordinate value to complete the mechanical test of the cubic prism group. Compared with the conventional theodolite for mechanical testing, the method has the advantage that the cost for completing the mechanical testing is reduced on the premise of completing the mechanical testing of the cubic prism group.
As a refinement and expansion of the above embodiments, in the embodiments disclosed in the present invention, the positions of the first cubic prism and the second cubic prism are respectively set, so that the reflected light spot is transmitted to the center of the light spot image plane, after the laser beam emitted by the light source is split by the laser beam splitter, the laser beam is transmitted to the first cubic prism and the second cubic prism through the spherical lens, and then the reflection is completed, so as to ensure the accuracy of the test, in order to implement the above functions, the embodiments of the present invention further provide a calibration method for a cubic prism group, as shown in fig. 2, the method includes:
201. and setting the light spots of the first cubic prism and the second cubic prism to transmit to the center of the light spot image plane diagram.
In the embodiment disclosed in the present invention, the main mirror connecting plate may be an adjustable base, so as to adjust the positions of the first cubic prism and the second cubic prism independently, it should be noted that the light spot of the first cubic prism can be transmitted to the center of the light spot image plane diagram by fine adjustment of the optical machine structure, and the light spot of the second cubic prism can be transmitted to the center of the light spot image plane diagram by adjusting the base of the main mirror connecting plate on the premise of ensuring that the position of the first cubic prism does not change, so as to avoid that the light spots of the first cubic prism and the second cubic prism are reflected to an area outside the light spot image plane diagram after a mechanical test and the coordinate values thereof cannot be calculated, thereby reducing the mechanical test error. It should be noted that, in the embodiment of the disclosure, the light spot provided with the first cubic prism and the second cubic prism is transmitted to the center of the light spot image plane map, the center is not limited to the position of the center of the light spot image plane map, and a certain error range may exist, for example, in a circle with a center position radius of 0.2 millimeter (mm), the specific is not limited, but when a mechanical test is performed, the closer the light spot is to the position of the center, the higher the accuracy of the obtained test result is.
202. And after being split by the laser beam splitter, the laser beam emitted by the laser source is transmitted to the spherical lens, and the laser beam is respectively transmitted to the first cubic prism and the second cubic prism on the main mirror connecting plate by the spherical lens.
In the embodiment disclosed by the invention, the laser for mechanical testing is emitted by the laser source, the wavelength of the emitted laser beam can be 670 nanometers (nm) or 808nm, the laser beam emitted by the laser source needs the laser beam splitter to split, so that the first cubic prism and the second cubic prism can respectively receive one laser beam, and the laser beam split by the laser beam splitter can be condensed by the spherical lens and then is transmitted to the cubic prism group.
203. The first cubic prism and the second cubic prism respectively receive and reflect the laser beams to the spherical lens, and the spherical lens respectively transmits the laser beams sent by the first cubic prism and the second cubic prism to the spot image plane.
The cubic prism group receives the laser beams transmitted by the spherical lens, reflects the laser beams to the spherical lens for condensation and then transmits the laser beams to the CCD image sensor to form light spots corresponding to the first cubic prism and the second cubic prism.
204. And calculating a first coordinate value corresponding to the first cubic prism and a second coordinate value corresponding to the second cubic prism according to the light spot returned to the light spot image plane by the cubic prism group.
For the description of step 204, please refer to the detailed description of step 101, and the embodiments of the present invention will not be described herein.
205. And adjusting the position of the light spot image plane image light spot reflected by the first cubic prism after the mechanical test to make the first coordinate value consistent with the first coordinate value after the mechanical test before the mechanical test, and calculating a third coordinate value corresponding to the second cubic prism.
For the description of step 205, please refer to the detailed description of step 102, and the embodiments of the present invention will not be described herein.
206. And determining whether the difference value between the second coordinate value and the third coordinate value is smaller than a preset error threshold value.
For the description of step 206, please refer to the detailed description of step 103, and the embodiments of the present invention will not be described herein.
In summary, the positions of the first cubic prism and the second cubic prism are respectively set, so that the reflected light spot laser is transmitted to the center of the light spot image plane, and after the beam emitted by the light source is split by the laser splitter, the beam is condensed by the spherical lens and then is transmitted to the first cubic prism and the second cubic prism respectively to complete reflection, so as to ensure the precision of the mechanical test and the accuracy of the later application of the collimation measurement.
As an implementation of the method shown in fig. 1, another embodiment disclosed in the present invention further provides a calibration apparatus for a cubic prism group. The embodiment of the apparatus corresponds to the embodiment of the method, and for convenience of reading, details in the embodiment of the apparatus are not repeated one by one, but it should be clear that the apparatus in the embodiment can correspondingly implement all the contents in the embodiment of the method.
The embodiment of the present invention also provides a calibration apparatus for a cubic prism set, as shown in fig. 3, including:
the first calculating unit 31 is configured to calculate a first coordinate value corresponding to the first cubic prism and a second coordinate value corresponding to the second cubic prism according to the light spot returned by the cubic prism group to the light spot image plane; the device comprises a main mirror connecting plate, a cubic prism group, a first coordinate value and a second coordinate value, wherein the cubic prism group is arranged on the main mirror connecting plate and comprises a first cubic prism and a second cubic prism, a certain included angle relationship exists between the first cubic prism and the second cubic prism, the first coordinate value is a coordinate value corresponding to the first cubic prism which is not subjected to a mechanical test, and the second coordinate value is a coordinate value corresponding to the second cubic prism which is not subjected to the mechanical test;
the adjusting unit 32 is used for adjusting the position of the light spot image plane image light spot reflected by the first cube prism after the mechanical test, so that the first coordinate value before the mechanical test is consistent with the first coordinate value after the mechanical test;
the second calculating unit 33 is configured to calculate a third coordinate value corresponding to the second cube prism, where the third coordinate value is a coordinate value corresponding to the second cube prism after the mechanical test is performed;
a determining unit 34, configured to determine whether a difference between the second coordinate value and the third coordinate value is smaller than a preset error threshold.
According to the calibration device of the cubic prism group provided by the embodiment of the invention, a first coordinate value corresponding to a first cubic prism and a second coordinate value corresponding to a second cubic prism are calculated according to the light spot of a light spot image plane image returned by the cubic prism group; adjusting the position of the first cubic prism after the mechanical test to make the first coordinate value before the mechanical test consistent with the first coordinate value after the mechanical test, and calculating a third coordinate value corresponding to the second cubic prism; and judging the stability of the cubic prism group according to the difference value between the second coordinate value and the third coordinate value to complete the mechanical test of the cubic prism group. Compared with the conventional theodolite for mechanical testing, the method has the advantage that the cost for completing the mechanical testing is reduced on the premise of completing the mechanical testing of the cubic prism group.
Further, as shown in fig. 4, the apparatus further includes:
the setting unit 35 is configured to set the light spots of the first cubic prism and the second cubic prism to transmit to the center of the light spot image map before the first calculating unit 31 calculates the first coordinate value corresponding to the first cubic prism and the second coordinate value corresponding to the second cubic prism according to the light spots returned to the light spot image map by the cubic prism group.
Further, as shown in fig. 4, the apparatus further includes:
a first transmission unit 36, configured to transmit the laser beam emitted by the laser source to the first cubic prism and the second cubic prism on the primary mirror connecting plate after being split by the laser beam splitter before the first calculation unit 31 calculates the first coordinate value corresponding to the first cubic prism and the second coordinate value corresponding to the second cubic prism according to the light spot returned by the cubic prism group to the light spot image plane;
a first receiving unit 37 for receiving the laser beams by the first and second cube prisms, respectively;
a first reflection unit 38 for reflecting the laser beam to the spot image map by the first and second cubic prisms.
Further, as shown in fig. 4, the apparatus further includes:
a second transmission unit 39, configured to transmit the laser beam emitted by the laser source to the spherical lens after being split by the laser beam splitter before the laser beam emitted by the laser source is transmitted to the first cubic prism and the second cubic prism on the primary mirror connecting plate by the first transmission unit 36;
a first transmission unit 310 for transmitting the laser beam to the first and second cube prisms on the primary mirror connecting plate, respectively, by the spherical lens;
a second receiving unit 311 for receiving the laser beams by the first and second cube prisms, respectively;
a second reflection unit 312 for reflecting the laser beam to the spherical lens by the first and second cubic prisms;
a second transmission unit 313 for transmitting the laser beams sent by the first and second cubic prisms to the spot image plane by the spherical lens, respectively.
In summary, the positions of the first cubic prism and the second cubic prism are respectively set, so that the reflected light spot laser is transmitted to the center of the light spot image plane, and after the beam emitted by the light source is split by the laser splitter, the beam is condensed by the spherical lens and then is transmitted to the first cubic prism and the second cubic prism respectively to complete reflection, so as to ensure the precision of the mechanical test and the accuracy of the later application of the collimation measurement.
Since the calibration apparatus for a cubic prism set described in this embodiment is an apparatus capable of executing the calibration method for a cubic prism set in the embodiment of the present invention, based on the calibration method for a cubic prism set described in the embodiment of the present invention, those skilled in the art can understand the specific implementation manner and various variations of the calibration apparatus for a cubic prism set in this embodiment, so how to implement the calibration methods for multiple cubic prism sets in the embodiment of the present invention by the calibration apparatus for a cubic prism set is not described in detail herein. The scope of the present application is intended to cover any apparatus used by those skilled in the art to implement the method for calibrating a cubic prism set according to the embodiments of the present invention.
An embodiment of the present invention provides an electronic device, as shown in fig. 5, including: at least one processor (processor) 41; and at least one memory (memory)42, a bus 43 connected to the processor 41; wherein the content of the first and second substances,
the processor 41 and the memory 42 complete mutual communication through the bus 43;
the processor 41 is configured to call program instructions in the memory 42 to perform the steps in the above-described method embodiments.
The present embodiments provide a non-transitory computer-readable storage medium storing computer instructions that cause the computer to perform the methods provided by the method embodiments described above.
As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
In a typical configuration, a computing device includes one or more processors (CPUs), input/output interfaces, network interfaces, and memory.
The memory may include forms of volatile memory in a computer readable medium, Random Access Memory (RAM) and/or non-volatile memory, such as Read Only Memory (ROM) or flash memory (flash RAM). The memory is an example of a computer-readable medium.
Computer-readable media, including both non-transitory and non-transitory, removable and non-removable media, may implement information storage by any method or technology. The information may be computer readable instructions, data structures, modules of a program, or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), Static Random Access Memory (SRAM), Dynamic Random Access Memory (DRAM), other types of Random Access Memory (RAM), Read Only Memory (ROM), Electrically Erasable Programmable Read Only Memory (EEPROM), flash memory or other memory technology, compact disc read only memory (CD-ROM), Digital Versatile Discs (DVD) or other optical storage, magnetic cassettes, magnetic tape magnetic disk storage or other magnetic storage devices, or any other non-transmission medium that can be used to store information that can be accessed by a computing device. As defined herein, a computer readable medium does not include a transitory computer readable medium such as a modulated data signal and a carrier wave.
It should also be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in the process, method, article, or apparatus that comprises the element.
As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The above are merely examples of the present application and are not intended to limit the present application. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.
Claims (10)
1. A calibration method of a cubic prism group is characterized by comprising the following steps:
calculating a first coordinate value corresponding to the first cubic prism and a second coordinate value corresponding to the second cubic prism according to the light spot returned to the light spot image plane by the cubic prism group; the device comprises a main mirror connecting plate, a cubic prism group, a first coordinate value and a second coordinate value, wherein the cubic prism group is arranged on the main mirror connecting plate and comprises a first cubic prism and a second cubic prism, a certain included angle relationship exists between the first cubic prism and the second cubic prism, the first coordinate value is a coordinate value corresponding to the first cubic prism which is not subjected to a mechanical test, and the second coordinate value is a coordinate value corresponding to the second cubic prism which is not subjected to the mechanical test;
adjusting the position of the light spot image plane image light spot reflected by the first cubic prism after the mechanical test to make the first coordinate value consistent with the first coordinate value after the mechanical test before the mechanical test, and calculating a third coordinate value corresponding to the second cubic prism, wherein the third coordinate value is the coordinate value corresponding to the second cubic prism after the mechanical test;
and determining whether the difference value between the second coordinate value and the third coordinate value is smaller than a preset error threshold value, when the difference value between the second coordinate value and the third coordinate value is smaller than the preset error threshold value, determining that the stability of the optical machine structure meets the requirement, and when the difference value between the second coordinate value and the third coordinate value is larger than or equal to the preset error threshold value, determining that the stability of the optical machine structure does not meet the requirement and the adjustment is needed.
2. The method of claim 1, wherein prior to calculating a first coordinate value for a first cube prism and a second coordinate value for a second cube prism from the spots returned to the spot image map by the set of cube prisms, the method further comprises:
and setting the light spots of the first cubic prism and the second cubic prism to transmit to the center of the light spot image plane diagram.
3. The method of claim 1, wherein prior to calculating a first coordinate value for a first cube prism and a second coordinate value for a second cube prism from the spots returned to the spot image map by the set of cube prisms, the method further comprises:
after being split by a laser beam splitter, laser beams emitted by the laser source are respectively transmitted to the first cubic prism and the second cubic prism on the primary mirror connecting plate;
and the first cubic prism and the second cubic prism respectively receive and reflect the laser beams to the spot image plane.
4. The method of claim 3, wherein after the laser beam emitted from the laser source is split by the laser beam splitter, the laser beam is transmitted to the first and second cube prisms on the primary mirror attachment plate, respectively, and the method further comprises:
the laser beam emitted by the laser source is split by the laser beam splitter and transmitted to the spherical lens;
transmitting the laser beam to the first and second cube prisms on a primary mirror attachment plate, respectively, by the spherical lens;
receiving and reflecting the laser beam to the spherical lens by the first cubic prism and the second cubic prism respectively;
and transmitting the laser beams sent by the first cubic prism and the second cubic prism to the spot image plane by the spherical lens respectively.
5. A calibration device for a cubic prism group is characterized by comprising:
the first calculation unit is used for calculating a first coordinate value corresponding to the first cubic prism and a second coordinate value corresponding to the second cubic prism according to the light spot returned to the light spot image plane by the cubic prism group; the device comprises a main mirror connecting plate, a cubic prism group, a first coordinate value and a second coordinate value, wherein the cubic prism group is arranged on the main mirror connecting plate and comprises a first cubic prism and a second cubic prism, a certain included angle relationship exists between the first cubic prism and the second cubic prism, the first coordinate value is a coordinate value corresponding to the first cubic prism which is not subjected to a mechanical test, and the second coordinate value is a coordinate value corresponding to the second cubic prism which is not subjected to the mechanical test;
the adjusting unit is used for adjusting the position of the light spot image plane image light spot reflected by the first cubic prism after the mechanical test so as to enable the first coordinate value to be consistent with the first coordinate value after the mechanical test before the mechanical test;
the second calculation unit is used for calculating a third coordinate value corresponding to the second cubic prism, and the third coordinate value is a coordinate value corresponding to the second cubic prism after the mechanical test is carried out;
and the determining unit is used for determining whether the difference value between the second coordinate value and the third coordinate value is smaller than a preset error threshold value, when the difference value between the second coordinate value and the third coordinate value is smaller than the preset error threshold value, determining that the stability of the optical machine structure meets the requirement, and when the difference value between the second coordinate value and the third coordinate value is larger than or equal to the preset error threshold value, determining that the stability of the optical machine structure does not meet the requirement and the adjustment is needed.
6. The apparatus of claim 5, further comprising:
and the setting unit is used for setting the light spots of the first cubic prism and the second cubic prism to be transmitted to the center of the light spot image plane image before the first calculating unit calculates the first coordinate value corresponding to the first cubic prism and the second coordinate value corresponding to the second cubic prism according to the light spots returned to the light spot image plane image by the cubic prism group.
7. The apparatus of claim 5, further comprising:
the first transmission unit is used for transmitting laser beams emitted by the laser source to the first cubic prism and the second cubic prism on the main mirror connecting plate after being split by the laser beam splitter before the first calculation unit calculates a first coordinate value corresponding to the first cubic prism and a second coordinate value corresponding to the second cubic prism according to the light spots returned to the light spot image plane by the cubic prism group;
a first receiving unit for receiving the laser beams by the first and second cube prisms, respectively;
and the first reflecting unit is used for reflecting the laser beam to the light spot image plane by the first cubic prism and the second cubic prism.
8. The apparatus of claim 7, further comprising:
the second transmission unit is used for transmitting the laser beams emitted by the laser source to the spherical lens after being split by the laser beam splitter before the laser beams are respectively transmitted to the first cubic prism and the second cubic prism on the main mirror connecting plate after being split by the first transmission unit;
a first transmission unit for transmitting the laser beam to the first and second cube prisms on the primary mirror attachment plate, respectively, by the spherical lens;
a second receiving unit for receiving the laser beams by the first and second cube prisms, respectively;
a second reflecting unit for reflecting the laser beam to the spherical lens by the first and second cubic prisms;
and the second transmission unit is used for transmitting the laser beams sent by the first cubic prism and the second cubic prism to the spot image plane by the spherical lens respectively.
9. An electronic device, comprising:
at least one processor;
and at least one memory, bus connected with the processor; wherein the content of the first and second substances,
the processor and the memory complete mutual communication through the bus;
the processor is used for calling the program instructions in the memory to execute the calibration method of the cubic prism group as set forth in any one of claims 1 to 4.
10. A non-transitory computer-readable storage medium storing computer instructions that cause a computer to perform the method of calibrating a cube prism stack according to any one of claims 1 to 4.
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| CN113156607B (en) * | 2021-04-14 | 2023-07-14 | 广景视睿科技（深圳）有限公司 | Method for assembling prism, device for assembling prism and equipment for assembling prism |
| CN114971508B (en) * | 2021-11-17 | 2023-08-04 | 图达通智能科技(苏州)有限公司 | Prism manufacturing method, system, computer device and computer readable storage medium |
| CN115628816B (en) * | 2022-12-19 | 2023-03-10 | 中国科学院合肥物质科学研究院 | Calibration system and method of laser parameter measuring device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102162729A (en) * | 2010-12-29 | 2011-08-24 | 哈尔滨工业大学 | Method for measuring included angle between laser emission axis and mechanical datum plane based on cubic prism |
| CN103278045A (en) * | 2013-05-31 | 2013-09-04 | 中国科学院长春光学精密机械与物理研究所 | Rocket azimuth precise aiming system and rocket azimuth precise aiming method |
| CN104391291A (en) * | 2014-12-14 | 2015-03-04 | 中国科学院合肥物质科学研究院 | Fine particle laser radar system with adjustable focal position and self-calibration method |
| CN105825548A (en) * | 2016-03-16 | 2016-08-03 | 清华大学 | BSL 3D DIC reconstruction method using pericentric lens |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102857294B (en) * | 2011-06-29 | 2014-12-31 | 重庆邮电大学 | Method and device for suppressing signal fading in laser communication from ground to GEO (geosynchronous) satellite |
| CN102607811B (en) * | 2012-03-23 | 2014-10-15 | 中国科学院西安光学精密机械研究所 | System and method for determining optical axis of non-spherical reflector |
| CN103438903B (en) * | 2013-08-27 | 2016-02-03 | 湖北航天技术研究院计量测试技术研究所 | The calibration steps of orientation error of orientation device |
| CN106323201B (en) * | 2015-06-17 | 2019-06-21 | 徐工集团工程机械股份有限公司 | Linearity surveying system |
| US10393583B2 (en) * | 2016-08-09 | 2019-08-27 | Northrop Grumman Systems Corporation | Calibration target for hyperspectral image sensor |
| CN107238355B (en) * | 2017-07-26 | 2023-10-10 | 南京模拟技术研究所 | Prism reflection type calibrator and calibration method thereof |
| CN108050933B (en) * | 2017-12-18 | 2023-05-02 | 中国科学院西安光学精密机械研究所 | Pyramid prism retroreflection light spot positioning precision detection device and method |
| CN108387244B (en) * | 2017-12-21 | 2020-11-10 | 北京航天时代激光导航技术有限责任公司 | Inertial measurement unit and prism installation error stability determination method |
| CN108462526A (en) * | 2018-04-20 | 2018-08-28 | 宁波光舟通信技术有限公司 | A kind of laser beam communications satellite |
| CN109104239A (en) * | 2018-10-30 | 2018-12-28 | 宁波光舟通信技术有限公司 | Signal adjusts system between a kind of star |
-
2018
- 2018-12-29 CN CN201811639862.3A patent/CN109781141B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102162729A (en) * | 2010-12-29 | 2011-08-24 | 哈尔滨工业大学 | Method for measuring included angle between laser emission axis and mechanical datum plane based on cubic prism |
| CN103278045A (en) * | 2013-05-31 | 2013-09-04 | 中国科学院长春光学精密机械与物理研究所 | Rocket azimuth precise aiming system and rocket azimuth precise aiming method |
| CN104391291A (en) * | 2014-12-14 | 2015-03-04 | 中国科学院合肥物质科学研究院 | Fine particle laser radar system with adjustable focal position and self-calibration method |
| CN105825548A (en) * | 2016-03-16 | 2016-08-03 | 清华大学 | BSL 3D DIC reconstruction method using pericentric lens |
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