CN202150052U - Photoelectric automatic astronomical star guiding and star finding system - Google Patents
Photoelectric automatic astronomical star guiding and star finding system Download PDFInfo
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- CN202150052U CN202150052U CN201120264926U CN201120264926U CN202150052U CN 202150052 U CN202150052 U CN 202150052U CN 201120264926 U CN201120264926 U CN 201120264926U CN 201120264926 U CN201120264926 U CN 201120264926U CN 202150052 U CN202150052 U CN 202150052U
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Abstract
The utility model discloses a photoelectric automatic astronomical star guiding and star finding system, comprising a motor servo controller, a stand mechanism, an optical observation mechanism, a photoelectric signal acquisition mechanism and an image processor, which are sequentially connected, and transmit signals sequentially and unidirectionally. The stand mechanism is a support body controlling the actions of the optical observation mechanism by connecting with the motor servo controller. The photoelectric automatic astronomical star guiding and star finding system also comprises a USB interface transmission mechanism and a computer program processing module, the data output end of the image processor is connected with the input end of the USB interface transmission mechanism, the USB interface transmission mechanism is in bidirectional data intercommunication connection with the computer program processing module, and the data output end of the USB interface transmission mechanism is also connected with the data input end of the motor servo controller. The photoelectric automatic astronomical star guiding and star finding system is used for realtime feedback tracking and target aster searching of a target aster, enables the optical observation mechanism to always keep synchronous with a heavenly body to be observed, reducing the error and controlling the accuracy.
Description
Technical field
The utility model relates to a kind of high-precision astronomical observation and astronomical telescope control system, specifically is the automatic astronomical guiding of a kind of photoelectricity, star searching system.
Background technology
In the prior art; Mostly be to adopt the method for time counter control servomotor operation for the method for eliminating the celestial body change in location that earth rotation brings in the astronomical sight; Through calculating the speed of earth rotation, produce count pulse with counter, by the pulsed drive motor; It is in the opposite direction with earth rotation speed is identical to make its rotating speed, thereby eliminates the influence that earth rotation brings.But owing to be to adopt computing method; Its output result is a definite value, and is an one-way system of not having feedback, therefore since the cumulative errors that cause in the gap of the sum of errors servo-drive system gear of this life of counter all can't eliminate timely; After causing the accumulation of error at last, the decline of observation effect.
And present star searching system also is based on above system principle; Also be that the servomotor end that is transferred to that result of calculation is unidirectional is controlled on control mode; And final observed result and result of calculation can't be accomplished timely feedback; Need lack the means of eliminating error in real time operation a period of time descendant for finding and artificial the correction.
Summary of the invention
The purpose of the utility model is to overcome the deficiency of prior art; Provide a kind of application that target celestial body in the astronomical sight is carried out real-time feedback and tracking technology; Optical observation mechanism is remained with quilt observe the synchronous of celestial body, reduce error, the automatic astronomical guiding of the accurate photoelectricity of control, star searching system.
The goal of the invention of the utility model is achieved in that the automatic astronomical guiding of a kind of photoelectricity, star searching system; It comprises and connecting in order and signal unidirectional motor servo controller, stage mechanism, optical observation mechanism, photoelectric signal collection mechanism and the image processor of transmission in order; Stage mechanism is for controlling the support body of optical observation mechanism action through receiving motor servo controller; It is characterized in that: the automatic astronomical guiding of said photoelectricity, star searching system also comprise USB interface transport sector and computer programs process module; The data output end of image processor is electrically connected with the input end of USB interface transport sector; USB interface transport sector and computer programs process module are that bi-directional data is connected, and the data output end of USB interface transport sector also is connected with the data input pin of motor servo controller.
The automatic astronomical guiding of the said photoelectricity of the utility model, star searching system, it is in the further refinement of technical scheme, and said stage mechanism comprises equatorial telescope and the support that is used to install equatorial telescope.
Further, the automatic astronomical guiding of the said photoelectricity of the utility model, star searching system, its said optical observation mechanism is an astronomical telescope.
During this time, in the concrete preparation process of the automatic astronomical guiding of the said photoelectricity of the utility model, star searching system, its said photoelectricity collecting mechanism is a ccd image sensor.
Perhaps, in the concrete preparation process of the automatic astronomical guiding of the said photoelectricity of the utility model, star searching system, its said photoelectric signal collection mechanism is a cmos image sensor.
The utility model said with prior art in astronomical observation compare with astronomical telescope control system, it has the following advantages:
The automatic astronomical guiding of the described photoelectricity of the utility model, star searching system; It sets up USB interface transport sector and computer programs process module; The data output end of image processor is electrically connected with the input end of USB interface transport sector; USB interface transport sector and computer programs process module are that bi-directional data is connected, and the data output end of USB interface transport sector also is connected with the data input pin of motor servo controller.Optical observation mechanism gained observation data is after being transferred to the computer programs process module; Can there be the computer programs process module to generate feedback signal through analyzing; Control optical observation mechanism through motor servo controller; Overcome the time error that produces because of earth rotation, made optical observation mechanism remain and observe the synchronous of celestial body, improved the accuracy of control greatly with quilt.
Description of drawings
Accompanying drawing 1 is the structure principle chart of the utility model most preferred embodiment.
Embodiment
Below in conjunction with accompanying drawing the utility model is done further to describe.
According to shown in Figure 1; The automatic astronomical guiding of the described photoelectricity of the utility model, star searching system; It comprises and connecting in order and signal unidirectional motor servo controller 1, stage mechanism 2, optical observation mechanism 3, photoelectric signal collection mechanism 4 and the image processor 5 of transmission in order that stage mechanism 2 is for controlling the support body of optical observation mechanism 3 actions through receiving motor servo controller 1, and the utility model is in order to overcome the weak point of prior art; It also comprises USB interface transport sector 6 and computer programs process module 7; The data output end of image processor 5 is electrically connected with the input end of USB interface transport sector 6, and USB interface transport sector 6 and computer programs process module 7 are for bi-directional data is connected, and the data output end of USB interface transport sector 6 also is connected with the data input pin of motor servo controller 1; Include image processing program in the computer programs process module 7; Image center of gravity operation program, astronomical year book look-up routine, position and time reduction program.During this time, in native system, image processor 5, the motor servo controller 1 common slave computer part of forming, USB interface transport sector 6 and the computer programs process module 7 common epigynous computer section of forming.
It is in the further refinement of technical scheme, and said stage mechanism 2 comprises equatorial telescope and be used to install the support of equatorial telescope, and its said optical observation mechanism 3 is an astronomical telescope.Simultaneously, in the concrete preparation process of the automatic astronomical guiding of the said photoelectricity of the utility model, star searching system, its said photoelectricity collecting mechanism is ccd image sensor or cmos image sensor.
The principle of work of the utility model is:
The optical observation mechanism 3 of native system handles the back is transferred to host computer through USB interface mechanism computer programs process module 7 brains with the electric signal after the conversion process through the image processor 5 of slave computer end.By the image processing program in the computer programs process module 7 picture signal is carried out obtaining after operational analysis is handled the optical imagery of target, calculate the picture centre of celestial image again through " image center of gravity operation program " accordingly.Compared in the center, visual field of the optical observation mechanism 3 (astronomical telescope) of picture centre and default; Draw its side-play amount; This offset data that then host computer is drawn through computing is sent to the motor servo controller 1 of slave computer end through USB interface mechanism; Through driving circuit, drive both direction servomotor (right ascension, declination) by this motor servo controller 1, correction image center and the side-play amount of observing the center, visual field; Make optical observation mechanism 3 under the FEEDBACK CONTROL of photoelectricity guiding, remain and observe the synchronous of celestial body, error is reduced to minimum with quilt.Thereby accomplished the function of photoelectricity guiding.
Owing to the realization of above-mentioned functions, therefore on the computer programs process module 7 of host computer, obtained the image of a known celestial body.
Under the situation of the title of known this celestial body, can obtain the parameter such as right ascension and declination of this known celestial body through the astronomical year book look-up routine.
The local time parameter and local longitude and latitude parameter of input in host computer computer programs process module 7 can carry out the room and time location with optical observation mechanism 3 through position and time reduction program.
So far optical observation mechanism 3 and the parameters of being observed celestial body and corresponding bias have just been obtained.Thereby reduction goes out optics sampling mechanism 3 is in the position data in the universe at this very moment.
According to above-mentioned position data, the celestial body of seeking other through native system again just has been easy to.The celestial body that will seek is selected in computer; Can obtain the right ascension and the declination of this celestial body through " astronomical year book look-up routine "; Be brought into " position and time reduction program " again; Just can be adapted to this moment optical observation system and the side-play amount of being observed celestial body that needs to seek, thus the locator data of obtaining.
To be sent to slave computer end motor servo controller 1 by USB interface transport sector 6 by the good locator data of upper computer end computer programs process module 7 computings at last; 1 running of end motor servo controller; Find the new celestial body that will observe; And get into guiding state to new celestial body, can be after getting into the guiding function and seek the error that causes by the mechanical drive gap in the star process by very fast elimination.
The optical observation mechanism 3 gained observation datas of the utility model are after being transferred to computer programs process module 7; Can there be computer programs process module 7 to generate feedback signal through analyzing; Control optical observation mechanism 3 through motor servo controller 1; Overcome the time error that produces because of earth rotation; Make optical observation mechanism 3 structures remain and observe the synchronous of celestial body, improved the accuracy of control greatly with quilt, thus this complete high precision feedback control system function that has realized the photoelectricity automatic guiding, sought star.
Claims (5)
1. the automatic astronomical guiding of photoelectricity, star searching system; It comprises and connecting in order and signal unidirectional motor servo controller (1), stage mechanism (2), optical observation mechanism (3), photoelectric signal collection mechanism (4) and the image processor (5) of transmission in order; Stage mechanism (2) is for controlling the support body of optical observation mechanism (3) action through receiving motor servo controller (1); It is characterized in that: the automatic astronomical guiding of said photoelectricity, star searching system also comprise USB interface transport sector (6) and computer programs process module (7); The data output end of image processor (5) is electrically connected with the input end of USB interface transport sector (6); USB interface transport sector (6) and computer programs process module (7) are for bi-directional data is connected, and the data output end of USB interface transport sector (6) also is connected with the data input pin of motor servo controller (1).
2. according to the automatic astronomical guiding of the said photoelectricity of claim 1, star searching system, it is characterized in that: said stage mechanism (2) comprises equatorial telescope and the support that is used to install equatorial telescope.
3. according to the automatic astronomical guiding of the said photoelectricity of claim 2, star searching system, it is characterized in that: said optical observation mechanism (3) is astronomical telescope.
4. according to the automatic astronomical guiding of the said photoelectricity of claim 3, star searching system, it is characterized in that: said photoelectric signal collection mechanism (4) is ccd image sensor.
5. according to the automatic astronomical guiding of the said photoelectricity of claim 3, star searching system, it is characterized in that: said photoelectric signal collection mechanism (4) is cmos image sensor.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201120264926U CN202150052U (en) | 2011-07-22 | 2011-07-22 | Photoelectric automatic astronomical star guiding and star finding system |
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| CN201120264926U CN202150052U (en) | 2011-07-22 | 2011-07-22 | Photoelectric automatic astronomical star guiding and star finding system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103439976A (en) * | 2013-07-12 | 2013-12-11 | 北京师范大学珠海分校 | Automatic star finding and guiding control system and control method thereof |
| CN104698582A (en) * | 2015-03-24 | 2015-06-10 | 中国科学院国家天文台南京天文光学技术研究所 | Astronomical site-selecting instrument guide star device and working method thereof |
| CN107356986A (en) * | 2017-09-12 | 2017-11-17 | 中国科学院云南天文台 | A kind of multiband combined type astronomical popularization system |
| CN111141491A (en) * | 2019-11-13 | 2020-05-12 | 中国科学院国家天文台 | Closed-loop pointing and tracking method for seeing measuring instrument |
-
2011
- 2011-07-22 CN CN201120264926U patent/CN202150052U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103439976A (en) * | 2013-07-12 | 2013-12-11 | 北京师范大学珠海分校 | Automatic star finding and guiding control system and control method thereof |
| CN103439976B (en) * | 2013-07-12 | 2016-09-28 | 北京师范大学珠海分校 | Automatic star-seeking and the control system of guiding and control method thereof |
| CN104698582A (en) * | 2015-03-24 | 2015-06-10 | 中国科学院国家天文台南京天文光学技术研究所 | Astronomical site-selecting instrument guide star device and working method thereof |
| CN107356986A (en) * | 2017-09-12 | 2017-11-17 | 中国科学院云南天文台 | A kind of multiband combined type astronomical popularization system |
| CN111141491A (en) * | 2019-11-13 | 2020-05-12 | 中国科学院国家天文台 | Closed-loop pointing and tracking method for seeing measuring instrument |
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Granted publication date: 20120222 Termination date: 20130722 |