CN115046634A

CN115046634A - Novel all-fiber moon tracker

Info

Publication number: CN115046634A
Application number: CN202210551844.XA
Authority: CN
Inventors: 马燕莺; 曹亚南
Original assignee: Institute of Environment Friendly Materials and Occupational Health of Anhui University of Sciece and Technology
Current assignee: Institute of Environment Friendly Materials and Occupational Health of Anhui University of Sciece and Technology
Priority date: 2022-05-18
Filing date: 2022-05-18
Publication date: 2022-09-13

Abstract

The invention relates to a novel system device for positioning and tracking moon by utilizing moon light, in particular to a novel all-fiber moon tracking instrument, which comprises a Fresnel lens, a camera, an optical fiber switching ring, an optical filter, a photoelectric sensor, an optical fiber spectrometer, a 51 single chip microcomputer, a motor, an led display screen, a rotating platform, a driver, a pasteur film and wheels. The chassis of the whole device is connected by wheels, a motor is respectively arranged inside the instrument in the transverse and longitudinal directions, the Fresnel lens and the camera can be in transverse and longitudinal double-shaft linkage through the two motors, the moon is always kept focused at the center of the field of view of the camera, and the front display screen can display related information. The light spot image of the moon is tracked and collected, the coordinate deviation of the center position of the visual field is calculated, and the deviation of the number of the pixel points can be converted into the deviation of the motor step angle. The method has more flexible requirements on the foundation, greatly reduces the load on the transmission and driving device, can effectively improve the tracking precision, and has lower cost.

Description

Novel all-fiber moon tracker

Technical Field

The invention relates to a novel system device for positioning and tracking moon by utilizing moon light, which can enable various devices needing to receive moon light to receive the moon light in the largest area at any time, thereby exploring the change of the moon phase and researching the tidal energy law.

Technical Field

The moon does not emit light, only reflects sunlight, the brightness of the moon changes along with the change of the angular distance between the sun and the moon and the distance between the earth and the moon, and the brightness of the full moon is more than ten times larger than the upper chord and the lower chord. By observing the luminosity of the moon, the tidal phenomenon can be judged. At present, devices for tracking moonlight exist, and tracking modes can be divided into two main types: photoelectric tracking and lunar phase tracking. The photoelectric tracking is that the photoelectric sensor feeds back the signal to a specific circuit or computer according to the intensity change of the incident light, and the circuit or computer realizes the tracking of the moon through identifying and controlling the transmission device. The tracking mode is good in timeliness, accurate in positioning and high in stability, but the realization circuit is complex, high in cost and prone to weather influence. The moon phase tracking is to observe the position change of the moon in one day in advance, and the tracking control system records the position change of the astronomical telescope by rotating the holder through the stepping motor, so that the singlechip controls the position change, the all-weather moon positioning can be realized, but the device has higher requirements on the placement position, needs to additionally measure different latitudes and has poorer precision. Although the tracking precision of the parts can be improved to a certain degree, the cost and the energy consumption are greatly improved, and the parts are difficult to maintain, so that the parts are difficult to popularize and apply on a large scale. Therefore, a new all-fiber moon tracker is proposed to solve the above problems.

Disclosure of Invention

Aiming at the problems in the prior art, the invention provides a novel all-fiber moon tracker.

The technical scheme adopted by the invention for solving the technical problem is as follows: a51 single chip microcomputer is used as a main control chip, a DGM85R-ASAA motor, an ASD12A-S driver, a fiber spectrometer, a Fresnel lens and a camera element are used for tracking and collecting light spot images of the moon, the coordinate deviation of the light spot images and the position of the center of a view field is calculated, the deviation of the number of pixel points can be converted into the deviation of a motor step angle, and relevant information is displayed on a display screen. The control circuit has the characteristics of simple structure, simple and convenient control circuit, low cost and high application prospect.

The invention adopts the following technical scheme for realizing the purpose:

a novel all-fiber moon tracker comprises a Fresnel lens, a camera, an optical fiber switching ring, an optical filter, a photoelectric sensor, an optical fiber spectrometer, a 51 single chip microcomputer, a motor, an LED display screen, a rotary table, a driver, a Barde film and wheels. The instrument is fixed by a chassis, wheels are arranged below the chassis, and the instrument is horizontally placed. The Fresnel lens and the camera are linked in a transverse and longitudinal double-axis mode through the two motors to track the moon, and therefore the moon is always kept focused on the center of the camera view field. The 51 single chip microcomputer controls the motor and a motor driver thereof to move pulse to track and collect a light spot image of the moon, and is in serial port communication with an upper computer to see the real-time position of the light spot at the center of a camera view field.

Has the advantages that:

compared with the existing moon tracking structure, the moon tracking structure has the beneficial effects that: according to the invention, moon tracking can be realized only by using the Fresnel lens and the camera to perform two-axis linkage in a horizontal direction and a longitudinal direction, so that the stress of the support is reduced, the stability of the support is increased, and a mechanical structure which needs to perform whole moon tracking in the past is omitted. And because the rotating platform has small mass, light weight and high flexibility, the static load and the impact load on the driving and transmission device are greatly reduced, and the power of the driving part and the inertia of the transmission part are correspondingly reduced. The moon tracking precision can be effectively improved, and compared with the conventional light condensing device, the cost is lower.

Drawings

FIG. 1 is a schematic diagram of the experimental apparatus.

Fig. 2 is a schematic view of the installation position structure of the longitudinal motor.

Fig. 3 is a schematic view of the installation position structure of the traverse motor.

Fig. 4 is a LABVIEW front panel program diagram.

Fig. 5 is an electrical schematic diagram of the single chip module.

Detailed Description

The invention is further illustrated by the following specific examples.

As shown in figure 1, the whole device is composed of three parts, a Fresnel lens (1) and a camera (2) are arranged on a rotary table (14) in parallel through a circular tube part (16), an optical fiber (12) is connected to a micro optical fiber spectrometer (13) below the rotary table (14), the rotary table (14) is fixed on the outer wall of a baffle plate (7) through a screw (3), and a led display screen (6) is arranged on the outer wall of the other surface of the rotary table through a screw. The interior of the baffle (7) is respectively provided with an electric motor in the transverse direction and the longitudinal direction, and the structure of the electric motor (15) comprises three parts: the motor comprises a motor body (15), a circular fixing piece (4) and a rotating ring (5), wherein the circular fixing piece (4) of a longitudinal motor (13) is fixed on the inner wall of a baffle (7) through a screw (3) and is arranged at a position concentric and coaxial with a front rotating table (14). The wedge-shaped fixing piece (9) of the transverse motor (8) is fixed on the chassis (11) through a screw and is concentric with the bottom circular ring, the chassis (11) is provided with wheels (10) through bearings, the back-and-forth sliding on the ground can be realized, and meanwhile, the rotating platform (14) and the baffle (7) can rotate mutually.

When bright light of month penetrates, the light is shone on the Fresnel lens component for condensation, the whole device is horizontally placed, a transverse motor and a longitudinal motor driver are subjected to motion control according to a single chip microcomputer with a program written in advance, so that the rotary table (14) and the circular tube (16) can be in transverse and longitudinal two-axis linkage for tracking the month, relevant information can be projected in the display screen (6) through the camera, and the real-time position of a light spot can be seen in an upper computer. Along with the movement of the moon, the Fresnel lens can also move a corresponding distance to keep the light condensing spots uniformly focused on the camera photosensitive element all the time. As shown in fig. 4, the light spot image of the moon is tracked and collected, the coordinate deviation between the light spot image and the center position of the view field is calculated, and the deviation of the number of pixel points can be converted into the step angle difference of the motor. The experimental result can be checked through LABVIEW software of the upper computer.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single technical solution, and such description is for clarity only, and those skilled in the art should make the description as a whole, and the technical solutions in the embodiments may be appropriately combined to form other embodiments understood by those skilled in the art.

Claims

1. A novel all-fiber moon tracker mainly comprises a Fresnel lens, a camera, an optical fiber switching ring, an optical filter, a photoelectric sensor, an optical fiber spectrometer, a 51 single chip microcomputer, a motor, an LED display screen, a rotary table, a driver, a Barde film and wheels.

2. The novel all-fiber lunar tracker according to claim 1, wherein: the chassis of the whole device is connected by wheels, the inside of the instrument is respectively provided with a motor in the transverse and longitudinal directions, the Fresnel lens and the camera can be in transverse and longitudinal double-shaft linkage through the two motors, and the moon is always kept focused on the center of the camera view field.

3. The novel all-fiber lunar tracker according to claim 1, wherein: the horizontal motor drives rotary part and rotates, vertical motor drives the revolving stage and rotates, realizes that fresnel lens and camera are horizontal, fore-and-aft diaxon linkage.

4. The novel all-fiber lunar tracker according to claim 1, wherein: a wheel is arranged below the chassis, and the vehicle can run on the flat ground after being horizontally placed, so that the movement of tracking light of the Fresnel lens and the camera is realized.

5. The novel all-fiber lunar tracker according to claim 1, wherein: the control chip controls the motor and the motor driver to move pulses to track and acquire the light spot image of the moon; the control chip can be in serial port communication with an upper computer to see the real-time position of the light spot at the center of the camera view field; the control chip also carries out correction calculation according to the light spot boundary signal measured by the camera photosensitive element, and the calculation result is the correction parameters of the longitudinal and transverse moving speeds of the Fresnel lens; the relevant information is displayed on the display screen.