A telescope control device, system, method, storage medium, program and application

Abstract

The present invention belongs to the field of observation technology of astronomical transient sources, and discloses a telescope control device, system, method, storage medium, program and application. Eight sets of optical telescope systems are uniformly fixed on a multifunctional turntable to achieve 360° rotation and uninterrupted scanning of the entire sky. Four sets of telescope systems realize low-elevation-angle, broadband scanning and searching for transient source celestial bodies. For high-elevation-angle and zenith scanning and searching for transient sources, four sets (two in each set) of optical telescopes placed on a base 2 are used to complete the work by pitch scanning; by optimizing the control and image processing software and utilizing the layout of the telescope device, real-time monitoring and searching of transient source celestial bodies in the entire sky can be realized. The present invention has reduced costs, higher system integration and faster processing speed. Compared with the previous 20 independent systems, the centralized control method adopted by the present invention is convenient for centralized control of the system, and the response processing speed will also be faster.

Description

Technical Field

[0001] The present invention belongs to the technical field of observation of astronomical transient sources, and in particular relates to a telescope control device, system, method, storage medium, program and application. Background Art

[0002] In recent years, the observation and research of astronomical transient sources have played an increasingly important role in the research of modern time-domain astronomy. A transient source refers to an occasional, short-lived, non-periodic astronomical phenomenon. From the observation point of view, its duration ranges from seconds to weeks or even months. At present, the known transient sources mainly include astronomical events such as supernovae, gamma-ray bursts, microlenses, black hole collapse of stars, and electromagnetic counterparts of gravitational waves. Gamma-ray bursts (GRBs), also known as gamma-ray bursts, are a typical transient source celestial body. It is a phenomenon of a sudden increase in gamma rays from the depths of the universe on a short time scale, and it is also the most violent explosion phenomenon after the Big Bang. According to the length of its duration T90 (the time when the cumulative photon counts are from 5% to 95%), it can be divided into two categories: long bursts (T90>2s) and short bursts (T90<2s). It is generally believed that long bursts originate from the collapse of massive stars, while short bursts originate from the merger of double compact stars. In addition to the instantaneous gamma-ray burst radiation, there are also afterglow phenomena in the X-ray band, optical band, and radio band after the burst, and its duration can range from weeks to months, or even years. Therefore, by studying gamma-ray bursts and their afterglow phenomena, we can further explore the generation process of compact objects, gravitational wave radiation, relativistic shock waves, and extremely high-energy cosmic rays, as well as conduct high-precision tests on basic physical principles. Since gamma-ray bursts are difficult to predict in time and space, in order to capture signals in a timely manner, large-field optical telescopes are required for high-frequency all-day monitoring. With the development of modern astronomical observation technology and data processing technology, more and more transient source celestial bodies have been detected, which has also made the sky survey observation and research of transient sources the focus of attention in the astronomical community.

[0003] At present, the Ground Wide Angle Camera (GWAC), a wide-field transient source survey equipment at the Xinglong Base of the National Astronomical Observatory of my country, is built for the survey observation and research of transient source celestial bodies. GWAC is mainly used to observe optical band radiation within 5 minutes before and 15 minutes after the GRB outbreak. The system consists of 40 wide-angle telescopes with an aperture of 18 cm. The field of view of each telescope can reach 150 square degrees. They are all equipped with scientific-grade CCD cameras with large target surfaces (4k*4k), and the total field of view can reach 5000 square degrees. It can be seen that two telescopes are installed on each rack, and 40 telescopes require a total of 20 racks. Compared with the overall system, this structure improves the flexibility of the system, but increases the difficulty of the control system, and also greatly increases the cost of the system. Therefore, it is particularly important to design a new method for constructing a telescope group.

[0004] In order to conduct sky surveys and research on transient source celestial bodies, Chinese researchers have proposed using wide-angle camera arrays to carry out related research. One of the related technologies is "The mini-GWAC optical follow-up of gravitational wave alerts-results from the O2 campaign and prospects for the upcoming O3 run", Res. Astron. Astrophys, 20(1), 13(2020). The National Astronomical Observatory of my country's Xinglong Base proposed to build a wide-field transient source survey equipment ground-based wide-angle camera array (GWAC) for related work and research. GWAC is mainly used to observe optical band radiation within 5 minutes before and 15 minutes after the GRB burst. The system consists of 40 wide-angle telescopes with an aperture of 18 cm. The field of view of each telescope can reach 150 square degrees. They are all equipped with scientific-grade CCD cameras with large target surfaces (4k*4k), and the total field of view can reach 5000 square degrees. At present, relevant research data have been obtained using this system.

[0005] Implementation scheme of the prior art 1: The ground-based wide-angle camera array (GWAC) consists of 40 wide-angle telescopes with an aperture of 18 cm. The field of view of each telescope can reach 150 square degrees. They are all equipped with scientific-grade CCD cameras with large target surfaces (4k*4k), and the total field of view can reach 5000 square degrees. The observation plan is distributed through the main control system, and each observation subsystem (single telescope) is started to observe different sky areas to obtain original images. After the collected images are processed, the obtained images are identified according to the dynamic threshold variation range. If the dynamic threshold variation range does not exceed the set value, it is deemed that no new target is found, and the image is re-collected; if the dynamic threshold exceeds the set value, it is deemed that a candidate target is obtained, and multiple frames of the target are collected, and the obtained images are sent to the science center for further identification and judgment, and the target images that meet the requirements are stored in the database to facilitate subsequent scientific research.

[0006] Disadvantages of the first prior art In order to realize a telescope array system with a large field of view and a full sky area, the system chooses a structural setting in which two telescopes are placed on one rack, and the whole system has a total of 20 rack devices. Although the flexibility of a single device has increased, it still has the following disadvantages: the overall control difficulty of the control system has increased, the performance requirements of the main control device have been higher, and the system response time has been longer; the system composition cost is high;

[0007] Through the above analysis, the problems and defects of the existing technology are: the current telescope has a high control system difficulty, a long system response time; and a high system construction cost.

[0008] The difficulty in solving the above problems and defects is: the above GWAC system is mainly composed of 20 subsystems, the system structure is relatively complicated, the 20 subsystems need to respond separately, and the system response time is long; at the same time, due to the large number of system components, it is not easy to centrally control the system. It is difficult to improve the system response speed and realize centralized control.

[0009] The cost of the overall system structure is relatively high, at least 1 to 2 times higher than that of the present technical solution.

[0010] The significance of solving the above problems and defects is that for transient source celestial bodies, the response speed of the system is extremely high. In order to detect the signals of transient source celestial bodies more timely, this scheme forms a unified overall structure, and the system structure is more compact (occupying an area of ​​<20m 2 ), only one command signal is needed to start the automatic search function of the system, without the need to operate each subsystem separately, which shortens the response time of the system, simplifies the system structure, and greatly reduces the system structure cost. Summary of the invention

[0011] In view of the problems existing in the prior art, the present invention provides a telescope control device, system, method, storage medium, program and application.

[0012] The present invention is implemented as follows: a telescope control method, the telescope control method comprising:

[0013] In the first step, eight optical telescope systems were fixed on a multi-functional turntable to achieve 360° rotation and uninterrupted scanning of the entire sky.

[0014] In the second step, the four telescope systems realize the work of low-elevation-angle and wide-band scanning and searching for transient source celestial bodies, while the work of high-elevation-angle and zenith scanning and searching for transient sources is completed by four sets of optical telescopes (two in each set) placed on the base 2 through pitch scanning;

[0015] The third step is to optimize the control and image processing software and utilize the layout of the telescope device to achieve real-time monitoring and search for transient source objects in the entire sky.

[0016] Image processing process:

[0017] There are two observation modes: if the lens remains stationary, for the position information of a transient source, the difference map of two consecutive frames will show an obvious change at this position, denoted as a, while the difference map of the second and third frames will not show a difference -a to offset this change at this position; and because noise appears randomly, if there is an obvious difference b in two consecutive frames, and the difference between the second and third frames appears near -b, it means that the third frame and the first frame have the same value at this position, then the change represented in the second frame is most likely noise rather than a transient source. Applying this property, after an obvious difference appears, several frames can be observed continuously to determine whether it is noise or a transient source celestial body. If the lens moves to track a moving target, before the difference between the two frames is made, the translation length of the second frame in the horizontal and vertical directions needs to be considered, and the images need to be realigned before the difference is made. For pixels that exist in the second frame but not in the first frame, they need to wait to be processed together with the next frame. At this time, the images observed by the first set of telescopes are saved, and the images obtained by the second set of telescopes are compared with the images obtained by the first set. Through this optimization method, the operation of repeated observations with a single set of telescopes is eliminated, the observation time is reduced, and the speed of target recognition is improved.

[0018] In addition, the observation strategy of the telescope plays a very important role in the detection of the target. The longitudinal "M-type" scanning and the transverse "Z-type" scanning will be used to monitor the entire sky area. The scanning path diagram is shown below. By studying the parameters such as the rotation parameters of the telescope's turntable, the pitch parameters, and the exposure time of the camera, the telescope control parameters and camera parameters suitable for full-sky monitoring of Gamma-ray burst transient source objects are obtained, thereby improving the detection probability of transient source objects. Figure 8 The observation principle diagram of "M" type and "Z" type observation strategies are used respectively. The classic transient source search process is as follows Fig. 9 shown.

[0019] Furthermore, the telescope control method realizes a telescope optical system with different monitoring fields of view by changing the size, material and structure of the optical lens of the telescope; and changes the number of telescopes to realize the adjustment of the sky area monitored by a single set of telescopes.

[0020] Furthermore, the field of view of the two optical telescopes in the telescope control method is 14°*14°.

[0021] Another object of the present invention is to provide a computer device, the computer device comprising a memory and a processor, the memory storing a computer program, and when the computer program is executed by the processor, the processor performs the following steps:

[0022] In the first step, eight optical telescope systems were fixed on a multi-functional turntable to achieve 360° rotation and uninterrupted scanning of the entire sky.

[0023] In the second step, the four telescope systems will perform low-elevation-angle, broadband scanning to search for transient source celestial bodies, while the high-elevation-angle and zenith scanning to search for transient sources will be completed by two optical telescopes placed on the base through pitch scanning;

[0024] The third step is to optimize the control and image processing software and utilize the layout of the telescope device to achieve real-time monitoring and search for transient source objects in the entire sky.

[0025] Another object of the present invention is to provide a computer-readable storage medium storing a computer program, wherein when the computer program is executed by a processor, the processor executes the following steps:

[0026] In the first step, eight optical telescope systems were fixed on a multi-functional turntable to achieve 360° rotation and uninterrupted scanning of the entire sky.

[0027] In the second step, the four telescope systems will perform low-elevation-angle, broadband scanning to search for transient source celestial bodies, while the high-elevation-angle and zenith scanning to search for transient sources will be completed by two optical telescopes placed on the base through pitch scanning;

[0028] The third step is to optimize the control and image processing software and utilize the layout of the telescope device to achieve real-time monitoring and search for transient source objects in the entire sky.

[0029] Another object of the present invention is to provide a telescope control system for executing the telescope control method, the telescope control system comprising:

[0030] Telescope system module, used to realize surveillance search with different surveillance fields of view;

[0031] A control system module, used to achieve a search speed for a surveillance target by adjusting a rotation speed and a rotation direction / azimuth of the telescope;

[0032] The image data processing module is used to realize target recognition by optimizing the algorithm of the image processing software.

[0033] Another object of the present invention is to provide a telescope control device equipped with the telescope control system, wherein the telescope control device is provided with:

[0034] Pedestal;

[0035] A multifunctional turntable is rotatably fixed on the base, a first equatorial mount bracket and a second equatorial mount bracket are rotatably fixed on the multifunctional turntable, the second equatorial mount bracket is arranged inside the first equatorial mount bracket, four of the first equatorial mount bracket and the second equatorial mount bracket are arranged evenly at 90 degrees;

[0036] The second equatorial mount bracket is higher than the first equatorial mount bracket, and both the first equatorial mount bracket and the second equatorial mount bracket are provided with telescopes.

[0037] Furthermore, the number of telescopes on the first equatorial mount bracket or the second equatorial mount bracket is 1-4.

[0038] Furthermore, the telescope is provided with a lens barrel, and an optical lens is clamped at the front end of the inner side of the lens barrel;

[0039] The telescope has an aperture of 15 cm, the optical lens matrix is ​​K9 glass, quartz glass or fluoride glass, the number of optical lenses is 1-10, and the optical field of view of the telescope is 14°*14°.

[0040] Another object of the present invention is to provide an observation terminal for an astronomical transient source, wherein the observation terminal for an astronomical transient source is equipped with the telescope control device.

[0041] Combining all the above technical solutions, the advantages and positive effects of the present invention are as follows:

[0042] Fig.10 Actual photographs taken using this technical solution to search for transient sources.

[0043] Table 1 Technical comparison between this scheme and GWAC project

[0044] project This technical solution GWAC Monitoring area 6600 square degrees 5000 square degrees Number of tubes 16 40 Number of racks 8 20 Cost estimation <10 million >40 million Area <![CDATA[<20m 2 ]]> <![CDATA[>100m 2 ]]>

[0045] The initial test system of this technical solution was used to carry out the physical photography of transient source all-sky survey. The entire response photography process took about 20 seconds, which greatly improved the response speed of the system and facilitated the search and detection of transient source celestial bodies. Table 1 shows the technical comparison between this technical solution and the GWAC project. This technical solution reduces the cost and system space while maintaining the same performance.

[0046] The present invention can realize a transient source monitoring system with a larger monitoring sky area while reducing system complexity and cost. The invention meets the needs of rapid search for transient source celestial bodies and has high practical value. The telescope layout of the above scheme makes the overall system layout more compact and facilitates the realization of overall control; at the same time, it can also improve the speed of target search and scanning in the entire sky area; more importantly, the scheme reduces the number of telescopes to 1 / 2 to 1 / 3 of the original number of equipment.

[0047] Under the same monitoring sky area, the cost of the present invention is reduced. The number of telescopes required for the system of the present invention is 16, which greatly reduces the system cost compared with the 40 telescopes of the previous GWAC system. The system integration is higher and the processing speed is faster. Compared with the previous 20 independent systems, the centralized control method adopted by the present invention is convenient for centralized control of the system and the response processing speed will also be faster. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments of the present application. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0049] Figure 1 It is a flow chart of a telescope control method provided by an embodiment of the present invention.

[0050] Figure 2 It is a schematic diagram of the structure of a telescope control system provided by an embodiment of the present invention.

[0051] Figure 3 It is a schematic structural diagram of a telescope device for rapid identification of transient source celestial bodies provided by an embodiment of the present invention;

[0052] Figure 4 is a schematic structural diagram of another side of a telescope device for rapid identification of transient source celestial bodies provided by an embodiment of the present invention;

[0053] Figure 5 is a schematic diagram of the structure of Example 3 provided in an embodiment of the present invention;

[0054] In the figure: 1. Multifunctional turntable; 2. First equatorial mount bracket; 3. Second equatorial mount bracket; 4. Mirror tube; 5. Base; 6. Optical lens.

[0055] Figure 6 It is a schematic diagram of a method for constructing a telescope system for rapid identification of transient source celestial bodies provided by an embodiment of the present invention.

[0056] Figure 7 It is a schematic diagram of the scanning sky area provided by an embodiment of the present invention.

[0057] Figure 8 It is an observation principle diagram using "M" type and "Z" type observation strategies respectively provided in the embodiments of the present invention.

[0058] Fig. 9 This is an example diagram of the transient source search image subtraction method processing provided by an embodiment of the present invention.

[0059] Fig.10 This is a photo actually taken when searching for transient sources using the present invention, as provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0060] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0061] In view of the problems existing in the prior art, the present invention provides a telescope control device, system, method, storage medium, program and application. The present invention is described in detail below with reference to the accompanying drawings.

[0062] like Figure 1 As shown, the telescope control method provided by the present invention comprises the following steps:

[0063] S101: 8 optical telescope systems are uniformly fixed on a multifunctional turntable, which can achieve 360° rotation and uninterrupted scanning of the entire sky.

[0064] S102: The four telescope systems can realize low-elevation-angle, broadband scanning and searching for transient source celestial bodies. The high-elevation-angle and zenith scanning and searching for transient sources are completed by two optical telescopes placed on the base marked 2 through pitch scanning.

[0065] S103: By optimizing the control and image processing software and utilizing the layout of the telescope device, it is possible to conduct real-time monitoring and searching of transient source objects throughout the sky.

[0066] like Figure 2 As shown, the telescope control system provided by the present invention includes:

[0067] Telescope system module, used to realize surveillance search with different surveillance fields of view.

[0068] The control system module is used to achieve the search speed for the surveillance target by adjusting the rotation speed and rotation direction / azimuth of the telescope.

[0069] The image data processing module is used to realize target recognition by optimizing the algorithm of the image processing software.

[0070] The technical solution of the present invention is further described below in conjunction with the accompanying drawings.

[0071] 1. Transient source: refers to an occasional, short-term, non-periodic astronomical phenomenon. Its duration ranges from seconds to weeks or even months. At present, the known transient sources mainly include supernovae, gamma-ray bursts, microlenses, black holes disintegrating stars, and electromagnetic counterparts of gravitational waves.

[0072] 2. Gamma-ray burst (GRB), also known as gamma-ray burst, is a typical transient source celestial body. It is a phenomenon of a sudden increase in short-time gamma rays from the depths of the universe. It is also the most violent explosion phenomenon after the Big Bang. The transient source mentioned in this invention will be explained by taking the gamma-ray burst as an example.

[0073] 3. Celestial region: For the convenience of identification in the field of astronomy, the sky is divided into stellar regions according to the positions of stars, which are referred to as celestial regions or star regions for short.

[0074] 4. Field of View: (FOV) An astronomical term that refers to the range of the sky that can be seen through a telescope. The field of view represents the maximum range that can be observed, usually expressed in degrees. The larger the field of view, the larger the observation range.

[0075] like Figures 3 to 5 As shown, the telescope device for rapid identification of transient source celestial bodies provided by an embodiment of the present invention includes: a multifunctional turntable 1, a first equatorial mount bracket 2, a second equatorial mount bracket 3, a lens barrel 4, a base 5, and an optical lens 6.

[0076] Example 1

[0077] A multifunctional changer 1 is rotatably fixed on the base 5 of the present embodiment, and a first equatorial mount bracket 2 and a second equatorial mount bracket 3 are rotatably fixed on the multifunctional changer 1. The second equatorial mount bracket 3 is arranged on the inner side of the first equatorial mount bracket 2. Four first equatorial mount brackets 2 and four second equatorial mount brackets 3 are arranged, and are evenly arranged at 90 degrees. The second equatorial mount bracket 3 is higher than the first equatorial mount bracket 2. Telescopes are arranged on the first equatorial mount bracket 2 and the second equatorial mount bracket 3. The equatorial mount frame can achieve 360° rotation to ensure uninterrupted scanning of the entire sky area. The telescope system placed on the multifunctional changer 1 can achieve 360° rotation in the horizontal direction as the multifunctional changer 1 rotates. In addition, each set of telescope equipment can be rotated separately, with good tracking flexibility.

[0078] The number of telescopes on the equatorial mount bracket or the second equatorial mount bracket 3 is 1-4. The telescope is provided with a lens barrel 4, and an optical lens 6 is clamped at the front end of the inner side of the lens barrel 4. The telescope aperture is 15 cm, the matrix of the optical lens 6 is K9 glass, quartz glass or fluoride glass, and the number of optical lenses 6 is 1-10; the optical field of view of the telescope is 14°*14°. The overall layout of the system of the present invention is more compact, which is convenient for the realization of overall control; at the same time, it can also improve the speed of target search and scanning in the entire sky area; reduce the number of telescopes to 1 / 2 to 1 / 3 of the original number of equipment, and reduce the cost of the system.

[0079] Example 2

[0080] On the basis of Example 1, the telescope of this embodiment has an aperture of 15 cm, the matrix of the optical lens 6 is K9 glass, the number of optical lenses 6 is 6, and the optical field of view of a single telescope can reach 14°*14°. The construction of the transient source target search system is carried out in a manner that two of the above telescopes are placed on each of the four first equatorial mount brackets 2, and two of the above telescopes are placed on each of the second equatorial mount brackets 3. By controlling the main control system and starting the observation system, the multifunctional switch 1 mainly rotates 360° in the horizontal azimuth, and the telescope on the first equatorial mount bracket 2 maintains a pitch angle of 25° to monitor the sky area of ​​18-32°; the monitoring of the 33°-90° sky area is monitored by the telescope placed on the second equatorial mount bracket 3 through pitch scanning. Both telescope systems rotate with the turntable, monitoring and searching the entire sky area within a 360° range. Multiple telescopes simultaneously acquire observation data. Each telescope is equipped with a graphics workstation to process the acquired observation data in real time. Through dynamic threshold change monitoring, the observation images that meet the conditions are identified in multiple frames and stored in the database, and then the observation data collection continues. If the observed image does not meet the target characteristics, there is no need for data processing, and data collection can be carried out directly.

[0081] Example 3

[0082] like Figure 3 As shown, based on Example 1, the telescope of this embodiment has an aperture of 15 cm, the optical lens 6 matrix is ​​K9 glass, the number of lenses is 6, and the optical field of view of a single telescope can reach 14°*14°. Two of the above telescopes are placed on each of the four first equatorial mount brackets 2. In order to save costs, only one of the above telescopes is placed on the second equatorial mount bracket 3 to carry out the construction of the transient source target search system. By controlling the main control system, the observation system is started, and the multifunctional switch 1 mainly rotates 360° in the horizontal azimuth. The telescope on the first equatorial mount bracket 2 maintains a pitch angle of 25° to monitor the 18-32° sky area; the 33-90° sky area is monitored by the telescope placed on the second equatorial mount bracket 3 through pitch scanning. Both telescope systems rotate with the turntable, monitoring and searching the entire sky area within a 360° range. Multiple telescopes simultaneously acquire observation data. Each telescope is equipped with a graphics workstation to process the acquired observation data in real time. Through dynamic threshold change monitoring, the observation images that meet the conditions are identified in multiple frames and stored in the database, and then the observation data collection continues. If the observed image does not meet the target characteristics, there is no need for data processing, and data collection can be carried out directly.

[0083] The working principle of the present invention is as follows: by controlling the main control system, the observation system is started, the multifunctional table 1 mainly rotates 360° in the horizontal azimuth, the telescope on the first equatorial mount bracket 2 maintains a pitch angle of 25°, and monitors the 18-32° sky area; the 33-90° sky area is monitored by the telescope placed on the second equatorial mount bracket 3 through pitch scanning. Both telescope systems rotate with the turntable to monitor and search the entire sky area within a 360° range, and multiple telescopes simultaneously acquire observation data. Each telescope is matched with a graphics workstation to process the acquired observation data in real time, and through dynamic threshold change monitoring, the observation images that meet the conditions are identified in multiple frames, stored in the database, and then the observation data collection continues. If the observation image does not meet the target characteristics, there is no need to process the data, and the data collection work is directly carried out.

[0084] The present invention adopts a centralized control method, and the overall layout is as follows Figure 1 As shown, there are a total of 8 optical telescope systems, which are uniformly fixed on a multi-functional turntable. Figure 2 The equatorial mount frame shown in the figure can achieve 360° rotation, ensuring uninterrupted scanning of the entire sky. The telescope system placed on the multi-functional turntable can achieve 360° rotation in the horizontal direction as the multi-functional turntable rotates. In addition, each set of telescope equipment can be rotated independently, with good tracking flexibility. Two optical telescopes (field of view is 14°*14°) are installed on the base marked 1. The four telescope systems can realize low-elevation-angle, wide-band scanning and searching for transient source celestial bodies. The scanning and searching for transient sources at high elevation angles and the zenith are completed by the two optical telescopes (field of view is 14°*14°) placed on the base marked 2 through pitch scanning. The schematic diagram of the scanning area is shown in the figure. Figure 7 As shown. At the same time, by optimizing the control and image processing software and utilizing the layout of the telescope device, it is possible to carry out real-time monitoring and searching of transient source celestial bodies in the entire sky. In the present invention, by increasing the field of view of the telescope, the speed of scanning and searching can be further improved; by increasing the number of telescopes placed on the base 2 and changing the rotation speed, the speed of scanning and searching the sky area can also be improved. The layout structure of the system can be changed by changing the number of telescopes on the base, the aperture of the telescope (changing the field of view), etc., and the overall layout structure can also be changed by continuing to increase the number of bases, etc. In addition, the shape of the turntable can be changed. For example, if it is currently circular, it can be changed to square, etc.

[0085] The telescope system construction method for rapid identification of transient source celestial bodies of the present invention mainly includes three parts: a telescope system, a control system and an image data processing system. The specific process is as follows: Figure 6 shown.

[0086] The telescope system of the present invention can realize telescope optical systems with different monitoring fields of view by changing the size, material and structure of the optical lens of the telescope; and can realize the adjustment of the sky area monitored by a single set of telescopes by changing the number of telescopes. The size of the optical lens can be 1 cm to 100 cm; the material of the optical lens can be K9 glass, quartz glass and fluoride glass; the number of lenses in the optical system can be 1 to 10; the size, material and number of the optical lens used can be one or more of the materials and sizes mentioned above. The number of telescopes that can be placed on each rack is 1 to 4.

[0087] The control system of the present invention can realize the search speed for the monitoring target by adjusting the rotation speed and rotation direction / azimuth of the telescope.

[0088] The image data processing system of the present invention can improve the speed of image processing by optimizing the algorithm (artificial intelligence) of the image processing software, thereby facilitating target recognition, etc.

[0089] By integrating the above three parts into a system, we can obtain a telescope system for rapid identification of transient source objects.

[0090] The present invention is further described below in conjunction with experimental results.

[0091] Figure 8 The observation principle diagram of "M" type and "Z" type observation strategies are used respectively. The classic transient source search process is as follows Fig. 9 As shown in the figure, the main principle is to subtract the observed image (a) from the template image (b). If it is a transient source (i.e. a newly appeared source), an image similar to a complete point source will appear in the residual image (c) after subtraction, as shown in the figure. Fig. 9 o1 and o2, and the other incomplete image spots are the noise generated in the subtraction process, such as Fig. 9 (c) n1, n2 and n3. Therefore, how to automatically and quickly identify the transient source in the residual image from the surrounding noise is one of the key issues that this technical solution needs to solve. Based on new feature parameters such as isophotometric star image profiles, the actual star image profiles are simulated and a more realistic training sample algorithm is constructed; noise filtering criteria based on measured data analysis are added to realize an optimized transient source rapid automatic identification system.

[0092] Fig.10 Actual photos taken using this technical solution to conduct transient source searches.

[0093] Fig.10 This is the result of a preliminary all-sky scan search using this technical solution.

[0094] In the description of the present invention, unless otherwise specified, "plurality" means two or more than two; the orientations or positional relationships indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0095] It should be noted that the embodiments of the present invention can be implemented by hardware, software, or a combination of software and hardware. The hardware part can be implemented using dedicated logic; the software part can be stored in a memory and executed by an appropriate instruction execution system, such as a microprocessor or dedicated design hardware. It can be understood by a person of ordinary skill in the art that the above-mentioned devices and methods can be implemented using computer executable instructions and / or contained in a processor control code, such as a carrier medium such as a disk, CD or DVD-ROM, a programmable memory such as a read-only memory (firmware), or a data carrier such as an optical or electronic signal carrier. Such code is provided on the carrier medium. The device and its modules of the present invention can be implemented by hardware circuits such as very large-scale integrated circuits or gate arrays, semiconductors such as logic chips, transistors, etc., or programmable hardware devices such as field programmable gate arrays, programmable logic devices, etc., can also be implemented by software executed by various types of processors, and can also be implemented by a combination of the above-mentioned hardware circuits and software, such as firmware.

[0096] The above description is only a specific implementation mode of the present invention, but the protection scope of the present invention is not limited thereto. Any modification, equivalent substitution and improvement made by any technician familiar with the technical field within the technical scope disclosed by the present invention and within the spirit and principle of the present invention should be covered within the protection scope of the present invention.

Claims

1. A telescope control method, characterized in that: The telescope control method comprises: In the first step, multiple optical telescope systems are uniformly fixed on a multifunctional turntable to achieve 360° rotation and uninterrupted scanning of the entire sky area; In the second step, multiple telescope systems realize low-elevation-angle, broadband scanning and searching for transient source celestial bodies. For high-elevation-angle and zenith scanning and searching for transient sources, multiple optical telescopes placed on the base are used to complete the work through pitch scanning. The third step is to optimize the control and image processing software and utilize the layout of the telescope device to achieve real-time monitoring and search for transient source objects in the entire sky.

2. The telescope control method according to claim 1, characterized in that: The telescope control method realizes a telescope optical system with different monitoring fields of view by changing the size, material and structure of the optical lens of the telescope; and changes the number of telescopes to adjust the sky area monitored by a single set of telescopes.

3. The telescope control method according to claim 1, characterized in that: The field of view of the two optical telescopes in the telescope control method is 14°*14°.

4. A computer device, characterized in that: The computer device includes a memory and a processor, wherein the memory stores a computer program, and when the computer program is executed by the processor, the processor performs the following steps: In the first step, eight optical telescope systems were fixed on a multifunctional turntable to achieve 360° rotation and uninterrupted scanning of the entire sky. In the second step, the four telescope systems will perform low-elevation-angle, broadband scanning to search for transient source celestial bodies. The high-elevation-angle and zenith scanning to search for transient sources will be completed by the four optical telescopes placed on the base through pitch scanning. The third step is to optimize the control and image processing software and utilize the layout of the telescope device to achieve real-time monitoring and search for transient source objects in the entire sky.

5. A computer-readable storage medium storing a computer program, wherein when the computer program is executed by a processor, the processor executes the following steps: In the first step, eight optical telescope systems were fixed on a multifunctional turntable to achieve 360° rotation and uninterrupted scanning of the entire sky. In the second step, the four telescope systems will perform low-elevation-angle, broadband scanning to search for transient source celestial bodies. The high-elevation-angle and zenith scanning to search for transient sources will be completed by the four optical telescopes placed on the base through pitch scanning. The third step is to optimize the control and image processing software and utilize the layout of the telescope device to achieve real-time monitoring and search for transient source objects in the entire sky.

6. A telescope control system for executing the telescope control method according to any one of claims 1 to 3, characterized in that: The telescope control system comprises: Telescope system module, used to realize surveillance search with different surveillance fields of view; A control system module, used to achieve a search speed for a surveillance target by adjusting a rotation speed and a rotation direction / azimuth of the telescope; The image data processing module is used to realize target recognition by optimizing the algorithm of the image processing software.

7. A telescope control device equipped with the telescope control system according to claim 6, characterized in that: The telescope control device is provided with: Pedestal; A multifunctional turntable is rotatably fixed on the base, a first equatorial mount bracket and a second equatorial mount bracket are rotatably fixed on the multifunctional turntable, the second equatorial mount bracket is arranged inside the first equatorial mount bracket, four of the first equatorial mount bracket and the second equatorial mount bracket are arranged evenly at 90 degrees; The second equatorial mount bracket is higher than the first equatorial mount bracket, and both the first equatorial mount bracket and the second equatorial mount bracket are provided with telescopes.

8. The telescope control device according to claim 7, characterized in that: The number of telescopes on the first equatorial mount bracket or the second equatorial mount bracket is 1-4.

9. The telescope control device according to claim 7, characterized in that: The telescope is provided with a lens barrel, and an optical lens is clamped at the front end of the inner side of the lens barrel; The telescope has an aperture of 15 cm, the optical lens matrix is ​​K9 glass, quartz glass or fluoride glass, and the number of optical lenses is 1-10; the optical field of view of the telescope is 14°*14°; the telescope aperture and field of view are both variables, and the field of view changes with the aperture.

10. An observation terminal for astronomical transient sources, characterized in that: The observation terminal of the astronomical transient source is equipped with the telescope control device according to any one of claims 7 to 9.

Images