CN113078949B - Man-machine interaction catch-and-follow system and method suitable for space optical communication - Google Patents
Man-machine interaction catch-and-follow system and method suitable for space optical communication Download PDFInfo
- Publication number
- CN113078949B CN113078949B CN202110290446.2A CN202110290446A CN113078949B CN 113078949 B CN113078949 B CN 113078949B CN 202110290446 A CN202110290446 A CN 202110290446A CN 113078949 B CN113078949 B CN 113078949B
- Authority
- CN
- China
- Prior art keywords
- light
- liquid crystal
- light beam
- crystal display
- detector
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/11—Arrangements specific to free-space transmission, i.e. transmission through air or vacuum
- H04B10/118—Arrangements specific to free-space transmission, i.e. transmission through air or vacuum specially adapted for satellite communication
Landscapes
- Physics & Mathematics (AREA)
- Astronomy & Astrophysics (AREA)
- General Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Optical Communication System (AREA)
Abstract
The invention discloses a man-machine interaction catch-and-follow system and a method suitable for space optical communication, wherein the system comprises a space optical signal emission source, a transmitting-receiving optical channel, a photoelectric detector, a catch-and-follow detector, a liquid crystal display and other components; in the process of space optical communication, a human eye telescope is combined with a catch-and-catch detector to form a catch-and-catch system of human-computer interaction light beams. The invention aims at the problems of heavy equipment, large volume and large power consumption caused by the adoption of a servo mechanism to realize the capture and tracking of a target in free space optical communication equipment. The human-computer interaction catching and tracking system is simple in form, flexible in operation and suitable for being used in free space optical communication.
Description
Technical Field
The invention belongs to the field of industrial and electronic information, and relates to a human-computer interaction catching and tracking system and method suitable for space optical communication.
Background
When the communication distance of the miniaturized free space optical communication equipment in the market is relatively far, the small free space optical communication equipment generally needs to be acquired and tracked firstly to lock the positions of light beams by two parties before communication is established, and thus stable establishment can be realized.
The capture tracking between the ultra-long distance satellite optical communication adopts an ultra-precise servo mechanism to realize dynamic tracking, so the servo mechanism of the inter-satellite optical communication equipment occupies considerable volume and power consumption, has high cost and is not suitable for the application of handheld optical communication.
In the prior art, the acquisition and tracking in free space optical communication in the market are generally realized by adopting a servo mechanism, so that the volume is large, the weight is large, and the method is not suitable for the requirements of handheld miniaturization application.
Therefore, it is necessary to develop a tracking system without a servo mechanism, which can meet the development requirements of many microminiaturized optical communication devices, and such a product is not available in the market at present.
In the prior art, a human-computer interaction catching and tracking system and a human-computer interaction catching and tracking method suitable for space optical communication are not available.
Disclosure of Invention
The technical problem solved by the invention is as follows: in the existing free space optical communication equipment, a servo mechanism is adopted to realize the capture and tracking of a target, so that the equipment is heavy, large in size and large in power consumption, and the requirement of microminiaturized optical communication equipment is not met. The invention adopts a man-machine interaction catching and following mode without a heavy servo mechanism, so that the equipment has small volume and light weight and meets the requirement of microminiaturized optical communication equipment.
The purpose of the invention is realized by the following technical scheme: observation eyepiece, wavelength spectroscope, LCD, receiving photoelectric detector and conditioning circuit, catch with the detector, power spectroscope, structural framework, focusing lens, pentaprism, beam lens, speculum, space light signal emission source.
The process of the man-machine interaction catching and tracking system suitable for space optical communication comprises the following steps: the light beams emitted from the space light signal emission source are combined into a light beam through the emission wavelength spectroscope, and the light beam is transmitted to the receiving party through the focusing lens and the light beam lens. The receiving aperture receives the converged light beam by using the light beam lens and the focusing lens, the light beam is split by the beam splitter, a small part of the light beam enters the catch-and-follow detector, the other most of the light beam enters the pentaprism for inversion conversion, the communication light beam is separated by the wavelength beam splitter to the receiving photoelectric detector and the conditioning circuit, and the light beam reaches the observation eyepiece after the separated light beam passes through the liquid crystal display. The systems of both sides communication are the same and symmetrical, and the system process of the other side is not repeated.
The space light signal emission source is a light emission source with the function that an electric signal is loaded to a light signal, and comprises a light source, an electro-optical modulator (driver) and an optical beam collimator.
The receiving photoelectric detector and the conditioning circuit have the functions of gathering optical signals and converting the optical signals into electric signals for amplification, and are composed of a focusing lens and photoelectric responder integrated detector, an optical filter at the front end of the focusing lens and an electric signal conditioning circuit.
The liquid crystal display has the function of displaying the position of the light spot on the catch detector, and the preset identification position of the liquid crystal display is the same as the position of the mass center of the emitted light beam. The liquid crystal display is positioned at the front end of the observation eyepiece.
The function of the capture and tracking detector is to capture, track and receive communication light spots and calculate the centroid position of the light spots.
A man-machine interaction catching and tracking method suitable for space optical communication is characterized by comprising the following steps:
(1) starting work, wherein the two communication parties start to search by holding the telescope eyes by hands according to the target track or the preset position of the other party, and simultaneously, the two communication parties start to work by emitting light beams without signal modulation;
(2) and detecting an opposite side emission light beam by using a position tracking catch-and-follow detector, if the catch-and-follow detector receives the light beam, calculating the position of a light spot according to a focusing light spot mass center position detection method, and feeding the position light spot back to the liquid crystal display, wherein the light spot of the liquid crystal display and the corresponding space of the catch-and-follow detector are mapped to the reverse position. If the light beam is not received by the catch detector, no light spot is displayed on the liquid crystal, and the process (2) is repeated.
(3) Manually enabling the light spot to enter a preset central position point mark of the liquid crystal display according to the liquid crystal light spot, and thus informing the emitting light to send the start handshake light beam for coded modulation.
(4) In the communication process, the light spot is always manually kept in the preset central position point mark of the liquid crystal. And (3) if the liquid crystal light spot is not in the preset position mark, returning to the step (2) and repeating and continuing.
Compared with the prior art, the invention has the following beneficial effects:
(1) the invention solves the servo heel-catching problem in the free space optical communication equipment, and realizes a heel-catching system without a heel-catching mechanism by utilizing a man-machine interaction heel-catching method.
(2) The invention is combined with telescope equipment to achieve the compatibility of communication capturing and observation functions.
Drawings
In order to more clearly illustrate the detailed description of the invention or the technical solutions in the prior art, the drawings that are needed in the detailed description of the invention or the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.
FIG. 1 is a schematic diagram of a human-computer interaction capture and tracking system suitable for spatial optical communication according to an embodiment of the present invention;
FIG. 2 is a diagram illustrating a human-computer interaction capture and follow method suitable for spatial optical communication according to an embodiment of the present invention;
FIG. 3 is a schematic diagram showing a heeling process of the liquid crystal display.
In the attached drawings, FIG. 2 can be taken as an abstract figure.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.
It is to be noted that, unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which the invention pertains.
Fig. 1 is a schematic diagram of a human-computer interaction capture and tracking system suitable for spatial optical communication. As shown in fig. 1, the human-computer interaction capturing and tracking system suitable for spatial optical communication is characterized by comprising: the device comprises an observation eyepiece 1, a wavelength spectroscope 2, a liquid crystal display 3, a receiving photoelectric detector and conditioning circuit 4, a tracking detector 5, a power spectroscope 6, a structural frame 7, a focusing lens 8, a pentaprism 9, a beam lens 10, a reflector 11 and a space light signal emission source 12.
The process of the man-machine interaction catching and tracking system suitable for space optical communication comprises the following steps: the light beam emitted from the space light signal emission source 12 is combined into a light beam by the emission wavelength spectroscope 2, and the light beam passes through the pentaprism 9, the reflector 11, the focusing lens 8 and the light beam lens 10 to reach a receiving party. The receiving aperture utilizes a light beam lens 10 and a focusing lens 8 to receive and converge light beams, the light beams are split by a beam splitter 6, a small part of the light beams enter a tracking detector 5, the other most of the light beams enter a pentaprism 9 for inversion conversion, and are separated by a wavelength beam splitter 2 to form communication light beams which are transmitted to a receiving photoelectric detector and a conditioning circuit 4, and in addition, the separated light beams reach an observation eyepiece 1 after passing through a liquid crystal display 3. The systems of both sides communication are the same and symmetrical, and the system process of the other side is not repeated.
The spatial light signal emission source 1 comprises a light source and a modulator, and when the light source in the spatial light signal source is a Light Emitting Diode (LED), the modulation adopts LED current modulation. The light source in the space optical signal source is a laser light source, the laser light source is modulated into a common laser modulator, in the process of acquisition, tracking and establishment, a handshake signal of communication needs to be transmitted, so an ASK modulation mode is needed to inform an opposite side that the communication condition is met, and after the both sides receive the handshake optical signal, the modulated service information can be transmitted. The output interface of the spatial light signal source is a spatial light beam, the smaller the divergence angle of the light beam, the better. The transmission of multi-channel signals is realized by a plurality of different wavelength space optical signal sources. The same applies to single-channel transceiving systems.
The function of the capturing and tracking detector 5 is to capture, track and receive communication light spots, calculate the mass center position of the light spots, and locate at the rear end of the power spectroscope 6, wherein the power spectroscope 6 is arranged according to the following ratio of 1: 9, the light power obtained by the tracking detector 5 is low, the tracking detector 5 is a photoelectric imaging device or a combination of a position detector, a focusing lens group and a signal processing circuit, and a communication wavelength filter is arranged at the front end of the focusing lens group, so that communication light enters the tracking detector 5 to inhibit stray light. And the capture and tracking detector 5 outputs the spot position information calculated by adopting a centroid algorithm.
The function of the liquid crystal display 3 is to display the position of the light spot on the tracking detector 5, and the preset mark position of the liquid crystal display 3 is at the center position of the optical axis, which is the same as the center of mass position of the emitted light beam, when the calculated position of the light spot in the tracking detector 5 is displayed in the opposite direction at the coordinates of the liquid crystal, due to the pentaprism 9 inversion system, if the calculated position (x, y) of the light spot in the tracking detector 5, the display position of the liquid crystal display 3 is (-x, -y). The liquid crystal display 3 is positioned at the front end of the observation ocular 1, observation light beams of the telescope can penetrate through the liquid crystal display 3, the liquid crystal display 3 adopts a cross to mark the central position as shown in figure 3, and the liquid crystal displays the communication stage (searching for a target, establishing catching and tracking, shaking the communication and communicating) so as to observe the stage that people in the ocular 1 perceive the communication through eyes.
The receiving photoelectric detector and the conditioning circuit 4 are used for photoelectric conversion of communication optical signals, the receiving detector is a device integrating the photoelectric converter and the converging lens group, band-pass filters (OD > ═ 3) are arranged between the converging lens group and a detector sensing surface, and the band-pass central wavelengths of the filters correspond to the optical central wavelengths of the output of the emitted light one by one.
The embodiment provides a man-machine interaction catch-and-follow method suitable for space optical communication,
the space and light path are simple in design, the function of capturing and tracking can be realized under the condition that no servo mechanism exists, and the device is combined with a telescope optical system to realize the functions of observing, searching and tracking a long-distance target. The specific implementation steps are as follows:
(1) as shown in fig. 2, the work starts, both communication parties start to search the target of the other party by holding the telescope eyes according to the target track or the preset position of the other party, and when the target of the other party can be seen through the eyepiece, as shown in fig. 3, the character mark "search target" at the stage of displaying communication in the liquid crystal display 3 is observed through the observation eyepiece 1, and the virtual facula appears in the liquid crystal. Meanwhile, the emitted light beam without signal modulation starts to work;
(2) the position tracking catch-and-catch detector 5 detects the light beam emitted by the other party, if the catch-and-catch detector receives the light beam, the position of the light spot is continuously calculated according to the method for detecting the position of the centroid of the focusing light spot, and when the position of the calculated light spot is (x, y), the position is converted and mapped to the liquid crystal display (-x, -y), as shown in figure 3, the virtual light spot appears, the character mark becomes 'catch-and-catch establishment', and the human eyes observe the virtual light spot; and (4) if the light spots are not displayed on the liquid crystal after the light is not received by the catch-and-follow detector, returning to the step (2) and repeating and continuing.
(3) The human eye observes the light spot in the liquid crystal display 3, slowly adjusts the pointing direction, and the human eye observes the position change of the light spot until the light spot is pulled to the middle small frame area of the cross wire shown in the figure 3, and the character identification becomes communication handshake. When the light spot enters the middle small frame area, the light emitting unit is informed to emit an Amplitude Shift Keying (ASK) modulation signal, the ASK modulation signal is repeatedly transmitted, the signal output of the photoelectric detector and the conditioning circuit 4 is waited to be received, and the ASK modulation handshake signal is received at the moment. The signal feedback can modulate the service information to enter the communication phase.
(4) The character mark in the liquid crystal display 3 is changed into 'communication', and in the communication process, the light spot is manually kept in the central position point mark preset by the liquid crystal. And (5) if the liquid crystal light spot is not in the preset position mark, returning to the step (2) and repeating and continuing.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the embodiments of the present invention, and they should be construed as being covered by the appended claims and their equivalents.
Claims (4)
1. The utility model provides a human-computer interaction catches with system suitable for space optical communication, adopts aperture receiving and dispatching passageway separation mode, its characterized in that includes: the device comprises an observation ocular (1), a wavelength spectroscope (2), a liquid crystal display (3), a receiving photoelectric detector and conditioning circuit (4), a tracking detector (5), a power spectroscope (6), a structural frame (7), a focusing lens (8), a pentaprism (9), a beam lens (10), a reflector (11) and a space light signal emission source (12); the method is applicable to the flow of the man-machine interaction catching and tracking system of the space optical communication: light beams emitted from a space light signal emission source (12) are combined into a light beam through an emission wavelength spectroscope (2), and the light beam is transmitted to a receiving party through a focusing lens (8) and a light beam lens (10); the receiving aperture receives the converged light beam by using a light beam lens (10) and a focusing lens (8), the light beam is split by a power beam splitter (6), a small part of the light beam enters a catch-and-follow detector (5), the other most of the light beam enters a pentaprism (9) for inversion conversion, a communication light beam is separated by a wavelength beam splitter (2) and sent to a receiving photoelectric detector and a conditioning circuit (4), and the light beam reaches an observation eyepiece (1) after passing through a liquid crystal display (3); the communication systems of the two parties are the same and symmetrical, and the system process of the other party is not repeated;
the tracking detector (5) has the functions of capturing, tracking and receiving communication light spots and calculating the mass center position of the light spots;
the liquid crystal display (3) is used for displaying the light spot position on the tracking detector (5), the liquid crystal display (3) is preset with the identification position at the center of the optical axis, the identification position is the same as the centroid position of the emitted light beam, the centroid position of the light spot is calculated and reversely displayed at the coordinate of the liquid crystal display (3), the liquid crystal display (3) is positioned at the front end of the observation eyepiece (1), the observation light beam of the telescope can penetrate through the liquid crystal display (3), and the liquid crystal display (3) adopts the cross-shaped cross-hair to identify the center position.
2. The human-computer interaction capturing and tracking system suitable for space optical communication according to claim 1, is characterized in that: the space light signal emission source (12) is a light emission source which is used for loading an electric signal to a light signal and comprises a light source, an electro-optic modulation driver and an optical beam collimator.
3. The human-computer interaction capturing and tracking system suitable for space optical communication according to claim 1, is characterized in that: the receiving photoelectric detector and conditioning circuit (4) has the function of gathering optical signals and converting the optical signals into electric signals for amplification, and is composed of a focusing lens and photoelectric responder integrated detector, an optical filter at the front end of the focusing lens and an electric signal conditioning circuit.
4. A human-computer interaction catch-and-follow method suitable for space optical communication is characterized by comprising the following steps: the human-computer interaction capturing and tracking system is adopted according to any one of claims 1 to 3, and the aim of capturing and tracking is achieved by manually enabling the light spots to enter the preset central position point marks of the liquid crystal display according to the liquid crystal light spots manually.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110290446.2A CN113078949B (en) | 2021-03-18 | 2021-03-18 | Man-machine interaction catch-and-follow system and method suitable for space optical communication |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110290446.2A CN113078949B (en) | 2021-03-18 | 2021-03-18 | Man-machine interaction catch-and-follow system and method suitable for space optical communication |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113078949A CN113078949A (en) | 2021-07-06 |
| CN113078949B true CN113078949B (en) | 2022-05-27 |
Family
ID=76612750
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110290446.2A Active CN113078949B (en) | 2021-03-18 | 2021-03-18 | Man-machine interaction catch-and-follow system and method suitable for space optical communication |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113078949B (en) |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1330882B1 (en) * | 2000-10-24 | 2015-12-23 | Geberit Technik Ag | System and method for wireless data exchange between an appliance and a handheld device |
| DE102005000937A1 (en) * | 2005-01-07 | 2006-07-20 | Deutsches Zentrum für Luft- und Raumfahrt e.V. | System for bidirectional optical full duplex free space data transmission |
| CN110336613B (en) * | 2019-06-25 | 2020-05-19 | 电子科技大学 | Light and fast wireless optical communication system based on current detection type galvanometer and control method |
| CN111970058B (en) * | 2020-09-22 | 2023-07-07 | 长春理工大学 | Rapid inter-satellite laser communication capturing method based on beaconing |
-
2021
- 2021-03-18 CN CN202110290446.2A patent/CN113078949B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN113078949A (en) | 2021-07-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204302569U (en) | There is the binocular optical instrument of distance measurement function | |
| US11046429B2 (en) | Head mounted display and method for maneuvering vehicle | |
| US11347055B2 (en) | Augmented reality display apparatus and augmented reality display method | |
| EP2846187A1 (en) | Projection system with infrared monitoring | |
| US10670421B2 (en) | Apparatus, system, and method of information sharing, and recording medium | |
| JPWO2015012280A1 (en) | Gaze detection device | |
| US20230359014A1 (en) | Composite prism based on isosceles prism, and laser ranging telescope comprising composite prism | |
| CN111076676A (en) | Underwater three-dimensional scanner and control method | |
| CN113078949B (en) | Man-machine interaction catch-and-follow system and method suitable for space optical communication | |
| US10397532B2 (en) | Device for ambience obstruction by an object | |
| CN108387974A (en) | High-power optical fiber laser receiving and transmitting integrated end cap | |
| US20140320844A1 (en) | Range Finder | |
| CN110429983B (en) | Telescope system based on optical communication transmission | |
| CN219496709U (en) | Hand-held observing and aiming optical system with wireless laser communication and information display functions | |
| CN210427937U (en) | Light splitting photoelectric telescope | |
| CN110417469B (en) | Communication observation terminal and telescope system | |
| CN209964060U (en) | Telescope system based on optical communication transmission | |
| CN209964059U (en) | Communication observation terminal and telescope system | |
| CN115891645A (en) | Target observing and aiming system and motor vehicle | |
| RU2335791C1 (en) | Observation sensor (versions) | |
| CN103035114A (en) | Operation shadowless lamp infrared remote control and touch control device | |
| CN206541027U (en) | A kind of new gun sight with laser ranging function | |
| JP2017208070A (en) | Information sharing system, information sharing method, terminal device, and information processing program | |
| CN216625742U (en) | Optical imaging and laser communication integrated system | |
| CN206639481U (en) | binocular night vision telescope |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |