CN211979381U

CN211979381U - Astronomical instrument camera optical system

Info

Publication number: CN211979381U
Application number: CN202020030883.1U
Authority: CN
Inventors: 吴爱华; 彭永民
Original assignee: Suzhou Peisiren Optoelectronics Technology Co ltd
Current assignee: Suzhou Peisiren Optoelectronics Technology Co ltd
Priority date: 2020-01-08
Filing date: 2020-01-08
Publication date: 2020-11-20
Anticipated expiration: 2030-01-08

Abstract

The utility model discloses an astronomical instrument camera optical system, which comprises a target identification module, an optical imaging system, an image quality detection module, an image processing module and an automatic focusing module; the target recognition module, the optical imaging system, the image quality detection module, the image processing module and the automatic focusing module are electrically connected in sequence; all modules are mutually matched to form a closed-loop control system; the optical imaging system comprises an astronomical camera and a system controller, the target identification module comprises a detector, and the detector is electrically connected with a data interface of the system controller; the image quality detection module and the image processing module are in facsimile communication, and the image processing module and the automatic focusing module are in serial communication through an RS485 module. The image quality evaluation and processing device can evaluate and process the image obtained by the astronomical camera in real time, automatically focus the astronomical camera, and improve the definition of the image.

Description

Astronomical instrument camera optical system

Technical Field

The utility model relates to an optical system makes a video recording, concretely relates to astronomical instrument optical system that makes a video recording.

Background

Astronomy is a science based on observation. The development of astronomy has promoted the innovation of astronomical instruments, and astronomical cameras have appeared to replace human eyes, and then various astronomical imaging optical systems have appeared. At present, in various common optical systems, the obtained images are often distorted, and the definition of image details cannot be effectively fed back in the existing astronomical imaging optical system, so that many images lose the original scientific value.

Therefore, a new astronomical camera system needs to be designed, so that the acquired image can be subjected to real-time image quality evaluation and processing, automatic focusing of the astronomical camera in the system is realized, the definition of the image is improved, and the image has scientific value.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide an astronomical appearance optical system that makes a video recording, it can carry out real-time image quality aassessment and processing and realize automatic focusing to the astronomical appearance of making a video recording in the system to the image that acquires, improves the definition of image for the image has scientific value more.

In order to solve the technical problem, the utility model provides an astronomical instrument optical system that makes a video recording, including the target identification module that is used for discerning the target object, the optical imaging system that is used for acquireing the astronomical image, the image quality detection module that is used for assessing image quality, the image processing module that is used for handling the image and the automatic focusing module that is used for adjusting the camera focus;

the target identification module, the optical imaging system, the image quality detection module, the image processing module and the automatic focusing module are electrically connected in sequence; all modules are mutually matched to form a closed-loop control system;

the optical imaging system comprises an astronomical camera and a system controller, the target identification module comprises a detector, and the detector is electrically connected with a data interface of the system controller; the image quality detection module and the image processing module are in facsimile communication, and the image processing module and the automatic focusing module are in serial communication through an RS485 module.

Preferably, the image quality detection module comprises an image signal conditioner and a measurement processor; the image signal conditioner and the measurement processor are electrically connected with the system controller through respective interfaces; meanwhile, the measurement processor is connected with an oscilloscope, and the oscilloscope is used for capturing and analyzing the waveform of the image signal, performing corresponding function setting and extracting the characteristic parameters of the image; the characteristic parameters comprise a parameter I, a parameter II and a parameter III.

Preferably, the image processing module comprises an image sensor, an A/D conversion module and a modem; the digital input end of the modem is connected with the first channel of the oscilloscope, and the digital output end of the modem is connected with the second channel of the oscilloscope; the image sensor for receiving the image is electrically connected with the image signal conditioner, and the image sensor is electrically connected with a median filter for removing noise in the image; and the analog electric signal in the median filter is transmitted to an A/D conversion module, and the A/D conversion module is electrically connected with a stripe extraction unit for extracting stripes in the image.

Preferably, the automatic focusing module comprises a distance measuring sensor, a system control unit, a focusing motor and a micro-motion focusing mechanism; the distance measuring sensor is electrically connected with a system controller and a system control unit in the optical imaging system; the focusing motor is electrically connected with the system control unit, and a micro-motion focusing mechanism for controlling the lens to focus is connected with the lens.

Preferably, a control panel for human-computer interaction is arranged between the system control unit and the focusing motor in the automatic focusing module, and a touch driver for touch control is arranged in the control panel.

Preferably, the touch driver is connected with a plurality of touch electrodes and a plurality of touch lines, and the touch electrodes and the touch lines are uniformly distributed in the control panel; the touch electrode is in a regular hexagon shape.

Preferably, the interface of the RS485 communication module is composed of a balanced driver and a differential receiver, and a twisted pair for signal transmission is connected between the balanced driver and the differential receiver.

Preferably, the astronomical instrument camera optical system further comprises a network module and a power supply module; the network module is used for connecting the system controller and the system control unit with a network to realize data communication, and the power supply module is used for supplying power to the whole system.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the astronomical instrument camera optical system is divided into modules, the modular design can reduce the wiring of the system, and when one module breaks down, the other modules are not influenced; maintenance can be made simpler.

2. The utility model is provided with a target recognition module, an optical imaging system, an image quality detection module, an image processing module and an automatic focusing module; the real-time image quality evaluation and processing can be carried out on the pictures obtained by astronomical shooting, and the automatic focusing can be carried out on the astronomical camera. The system can realize automatic testing, reduce the artificial participation and improve the intelligence of products.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a diagram of the system architecture of the present invention;

FIG. 2 is a schematic diagram of a frame structure of an image processing module;

fig. 3 is a schematic diagram of a frame structure of the autofocus module.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments obtained by a person skilled in the art without any inventive work based on the embodiments of the present invention belong to the protection scope of the present invention.

Examples

Referring to fig. 1-3, the utility model discloses an astronomical instrument optical system that makes a video recording, include:

the system comprises a target identification module, an optical imaging system, an image quality detection module, an image processing module and an automatic focusing module which are electrically connected in sequence. The modules cooperate with each other to form a closed-loop control system.

The target identification module is used for identifying a target object, the optical imaging system is used for acquiring an astronomical image, the image quality detection module is used for evaluating the quality of the image, the image processing module is used for processing the image, and the automatic focusing module is used for adjusting the focal length of the camera to acquire a clearer optical image. By dividing the astronomical instrument camera optical system into modules, the modularized design can reduce the wiring of the system, and when one module breaks down, the other modules are not affected; maintenance can be made simpler. The system realizes automatic testing, reduces the manual participation and improves the intelligence of products.

The optical imaging system comprises an astronomical camera and a system controller, wherein the system controller adopts a single chip microcomputer, and the single chip microcomputer and a PC (personal computer) can carry out serial communication. The target identification module comprises a detector which is electrically connected with a data interface of the system controller. The image quality detection module and the image processing module are in facsimile communication, and the image processing module and the automatic focusing module are in serial communication through the RS485 module. The interface of the RS485 communication module consists of a balanced driver and a differential receiver, and a twisted pair is connected between the balanced driver and the differential receiver. The twisted pair can transmit signals.

The image quality detection module comprises an image signal conditioner and a measurement processor. The image signal conditioner and the measurement processor are electrically connected with corresponding data ports in the system controller through respective interfaces. And meanwhile, the measurement processor is connected with an oscilloscope, and the oscilloscope is used for capturing and analyzing the waveform of the image signal, carrying out corresponding function setting and extracting the characteristic parameters of the image. The characteristic parameters in the image comprise a parameter I, a parameter II and a parameter III. Comparing and analyzing the extracted characteristic parameters, and judging to obtain the quality degree of the image.

The image processing module comprises an image sensor, an A/D conversion module and a modem. The digital input end of the modem is connected with the first channel of the oscilloscope, and the digital output end of the modem is connected with the second channel of the oscilloscope. The image sensor for receiving the image is electrically connected with the image signal conditioner, the image sensor is electrically connected with a median filter for removing noise in the image, and the median filter can eliminate noise to a certain extent in the image. The analog electric signal in the median filter is transmitted to an A/D conversion module, and the A/D conversion module is electrically connected with a stripe extraction unit for extracting stripes in the image.

The automatic focusing module comprises a distance measuring sensor, a system control unit, a focusing motor and a micro-motion focusing mechanism. The distance measuring sensor is electrically connected with a system controller and a system control unit in the optical imaging system. The focusing motor is electrically connected with the system control unit, and a micro-motion focusing mechanism for controlling the lens to focus is connected with the lens. And a grating ruler displacement sensor is connected between the focusing module and the image processing module and can be used for observing and feeding back the distance of lens movement focusing. So that a clearer and more realistic image is finally obtained.

A control panel is arranged between a system control unit and a focusing motor in the automatic focusing module, and a touch driver for touch control is arranged in the control panel. The touch driver is connected with the touch electrodes and the touch lines, the touch electrodes and the touch lines are arranged in a plurality, and the touch electrodes and the touch lines are uniformly distributed in the control panel. The touch electrode is in a regular hexagon shape. Above-mentioned control panel can be used for the man-machine exchange effect for this practical astronomical appearance optical system that makes a video recording's maneuverability is stronger, and human-computer interaction is more friendly.

The astronomical instrument camera optical system further comprises a network module and a power supply module. The network module is used for connecting the system controller and the system control unit with a network to finally realize the data communication function, and the power supply module is used for supplying power to the whole system.

The embodiment needs to be supplemented with that: the utility model discloses constitute by concrete hardware structures such as target identification module, optical imaging system, image quality detection module, image processing module and automatic focusing module, partial hardware has the participation of software program at the operation in-process, and the software program of supplementary local operation is the software program that has now can copy, does not constitute the innovation point of this application.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An astronomical imaging optical system, comprising:

the device comprises a target identification module for identifying a target object, an optical imaging system for acquiring an astronomical image, an image quality detection module for evaluating the image quality, an image processing module for processing the image and an automatic focusing module for adjusting the focal length of a camera;

2. The astronomical instrument imaging optical system according to claim 1, wherein the image quality detection module comprises an image signal conditioner and a measurement processor; the image signal conditioner and the measurement processor are electrically connected with the system controller through respective interfaces; meanwhile, the measurement processor is connected with an oscilloscope, and the oscilloscope is used for capturing and analyzing the waveform of the image signal, performing corresponding function setting and extracting the characteristic parameters of the image; the characteristic parameters comprise a parameter I, a parameter II and a parameter III.

3. The astronomical imaging optical system according to claim 2, wherein the image processing module comprises an image sensor, an a/D conversion module, and a modem; the digital input end of the modem is connected with the first channel of the oscilloscope, and the digital output end of the modem is connected with the second channel of the oscilloscope; the image sensor for receiving the image is electrically connected with the image signal conditioner, and the image sensor is electrically connected with a median filter for removing noise in the image; and the analog electric signal in the median filter is transmitted to an A/D conversion module, and the A/D conversion module is electrically connected with a stripe extraction unit for extracting stripes in the image.

4. The astronomical imaging optical system according to claim 3, wherein the automatic focusing module comprises a distance measuring sensor, a system control unit, a focusing motor, and a fine focusing mechanism; the distance measuring sensor is electrically connected with a system controller and a system control unit in the optical imaging system; the focusing motor is electrically connected with the system control unit, and the micro-motion focusing mechanism for controlling the lens to focus is connected with the lens.

5. The astronomical imaging optical system according to claim 4, wherein a control panel for human-machine interaction is provided between the system control unit and the focus motor in the autofocus module, and a touch driver for touch control is provided in the control panel.

6. The astronomical instrument imaging optical system according to claim 5, wherein the touch driver is connected to a plurality of touch electrodes and touch lines, and the touch electrodes and the touch lines are uniformly distributed in the control panel; the touch electrode is in a regular hexagon shape.

7. The astronomical instrument camera optical system of claim 6, wherein the interface of the RS485 communication module is composed of a balanced driver and a differential receiver, and a twisted pair for signal transmission is connected between the balanced driver and the differential receiver.

8. The astronomical imaging optical system according to claim 7, further comprising a network module and a power supply module; the network module is used for connecting the system controller and the system control unit with a network to realize data communication, and the power supply module is used for supplying power to the whole system.