CN106199992A

CN106199992A - A kind of wireless light beam reflected alignment method and device

Info

Publication number: CN106199992A
Application number: CN201510273248.XA
Authority: CN
Inventors: 钱浙滨
Original assignee: Individual
Current assignee: Individual
Priority date: 2015-05-26
Filing date: 2015-05-26
Publication date: 2016-12-07

Abstract

The present invention provides a kind of wireless light beam reflected alignment method and device, for the shortcoming that can only set up light path in a linear fashion in sending and receiving end overcoming prior art to exist.Described method includes: the first communication ends sends the first laser beam and/or the first light path detection light beam to the first reflector；First communication ends adjusts the first laser beam and/or the first light path detection light beam at the incident angle of the first reflector reflecting surface and/or incidence point with open loop or closed-loop fashion, makes to enter the light-receiving passage of the second communication ends through the emergent light of the first laser beam of the first reflector reflection；After the emergent light of the first laser beam of the first reflector reflection enters the light-receiving passage of the second communication ends, the first communication ends uses the light path alignment feedback information from the second communication ends to carry out light path tracking.The method and device that the present invention is given can realize light path and turn round alignment, extends the application scenarios of wireless light communication.

Description

Wireless light beam reflection alignment method and device

Technical Field

The invention relates to the field of optical communication, in particular to a method and a device for reflecting and aligning wireless light beams.

Background

The wireless Optical communication or Free Space Optical communication (FSO) has the characteristics of no need of frequency license, wide frequency band, low cost, good confidentiality, flexible layout, electromagnetic interference resistance and the like. In addition, the wireless optical link is established by using the free space optical communication system, and the following advantages are also provided: 1) the method is transparent to the running protocol, and the transmission control protocol commonly used by the existing communication network can bear the load; 2) networks that can form point-to-point, star, and mesh structures; 3) the capacity is easy to expand and upgrade, and the capacity can be changed only by slightly changing the interface.

The main problems with free-space optical communications include:

(1) the laser alignment between the two end points of the wireless optical link will be affected by the sloshing/drifting of the support carrying the FSO optical system or fluctuations in the atmospheric refractive index;

(2) the laser link can only realize point-to-point linear transmission in a visible range, and cannot realize light path turning transmission at a transceiving end.

In the prior patent application, beam aiming technology, beam collimation technology, beam steering technology and beam position monitoring technology related to the FSO system are generated, and the specific methods are briefly described as follows:

the patent application with the application number of CN97106253 and the name of the invention of "two-dimensional deflection plane mirror scanner" discloses a two-dimensional deflection plane mirror scanner which is mainly used for aerial remote sensing measurement. Such as airborne laser radar, three-dimensional imaging scanner, laser scanning range finder, airborne laser sweep the fields such as sea sounding. The device comprises a laser forming a remote sensor emission source, a two-dimensional deflection plane mirror component arranged at an alpha angle with an optical axis of a laser output beam, a receiving telescope system forming a remote sensor receiving system, a diaphragm, an optical filter, a photoelectric receiver and a signal processing system. The method has the characteristics of uniform scanning point, large accommodation area, high efficiency, intuition, good linearity, convenient post-processing and capability of accurately measuring the position of the target in real time.

Patent application No. CN99811390 entitled "beam deflector and scanner" discloses a beam deflector (40) comprising a pair of mated microprism arrays (42) and (48), one array being formed of a variable refractive index material (48) having a refractive index that is selectively variable in response to the magnitude or intensity of an electric field modulated by modulating an applied voltage. The further array (42) is preferably formed of a material having a constant refractive index. A conductive layer (102, 104, and 82) is disposed on both sides of the variable index array. Preferably, a panel (68 and 70) is positioned in front of and behind the array. The two sub-arrays may be arranged parallel to each other, with their microprisms generally perpendicular, to form a two-dimensional deflector. To achieve deflection with response times faster than 100 μ s, each prism has a height of no more than about 20 μm and preferably a width of no more than about 100 μm. Preferably, the height of each prism is less than about 15-10 μm to achieve a response time of 30 μ s or faster. A method of making the deflector includes using direct write electron beam lithography to fabricate a master for replicating arrays having a height of 10 μm or less. A pair of deflectors can be used to deflect the beam in two dimensions and can be used on a scanner. In the case where the beam is a laser, the deflector may be used in a laser imaging radar apparatus. One such scanner and lidar apparatus provides for rapid scanning of an object or area, advantageously without moving the deflector during scanning.

The patent application with the application number of CN201110161472 and the invention name of 'a novel two-dimensional light beam deflection method and device' discloses a novel pure electric control two-dimensional light beam deflection method and device. The method and the device can realize angle deflection in a two-dimensional range, and fill the blank of the current single-chip liquid crystal spatial light modulator in the field of two-dimensional light beam deflection. The invention utilizes a single-chip liquid crystal spatial light modulator and a novel driving principle, can conveniently realize the quasi-continuous deflection control of light beams in a two-dimensional range, and realizes convenient operation of light beam deflection, high precision and uniform and quasi-continuous angle distribution. Because two parameters alpha 'and beta' of the generated phase diagram are continuous controllable parameters, the problems of discrete deflection angle and uneven distribution of the light beam in the traditional method are solved, a simple method for realizing two-dimensional light beam deflection is provided, and the blank of the traditional method in the field of two-dimensional light beam deflection is filled.

Patent application with application number CN201110083703, entitled "scanning optical device", discloses a scanning optical device, which includes: a light source; a first optical element configured to convert light emitted from the light source into a light beam; a second optical element configured to convert the light beam having passed through the first optical element into a linear image extending in the main scanning direction; a deflection mirror configured to deflect the light beam having passed through the second optical element in a main scanning direction; and a third optical element configured to convert the light beam that has been deflected by the deflecting mirror into a spot-like image and focus it on a target surface to be scanned. The third optical element is a single lens having a pair of opposing lens surfaces, and each of the pair of lens surfaces is aspheric in a main scanning plane so as to satisfy the formula:

patent application No. CN200510001887 entitled "optical scanning device and image forming apparatus" discloses an optical scanning device that is small and can scan a light beam on a surface to be scanned at high speed, and an image forming apparatus using the same. In an optical scanning device for swinging a movable plate (653) at a high speed, the movable plate (653) rubs against air to generate heat, but the amount of heat generated is large on the main scanning direction side and small on the swinging axis direction side. Therefore, in the sub-scanning plane, the light beams converge in the sub-scanning direction (Y) and form a linear image in the vicinity of a deflection mirror face (651) of a deflector (65). This can reduce the size of the deflector mirror plane 651 in the direction of the swing axis (sub-scanning direction) (Y). On the other hand, the second distance is longer than the first distance on one side in the main scanning direction, and the movable plate 653 is far away from the vertical side portion (second abutting portion) 652b in the main scanning direction X. Therefore, air resistance to the movable plate 653 can be reduced, and the amount of heat generation itself can be reduced.

The patent application No. CN200810093270 entitled "apparatus for adjusting scanning position of light beam" discloses that the present invention provides an exposure apparatus and an image forming apparatus capable of simply and highly accurately adjusting the scanning position of light beam in the sub-scanning direction. In the exposure unit, a light beam is incident from a laser light source into a light scanning element (65) through a collimator lens and a cylindrical lens. In the optical scanning element (65), a deflector mirror (651) is swingably driven around a first axis AX1 and a second axis AX2, which are orthogonal to each other, and independently. In addition, a deflection mirror face (651) is oscillated about a first axis AX1 by controlling a mirror driving section composed of a first axis driving section and a second axis driving section, thereby deflecting the light beam to scan in the main scanning direction X. On the other hand, the position of the scanning beam on the photoreceptor (2) in the sub-scanning direction Y can be adjusted by swinging the deflector mirror (651) about the second axis AX 2.

The prior art has the defects that the laser link can only realize point-to-point linear transmission in a visible range, and cannot realize optical path turning transmission at a transceiving end.

Disclosure of Invention

The invention provides a method and a device for reflecting and aligning wireless light beams, which are used for overcoming the defect that the wireless laser link in the prior wireless optical communication technology can not realize the turn transmission of an optical path at a transmitting end and a receiving end.

The invention provides a method for reflecting, aligning and transmitting a wireless light beam, which comprises the following steps:

a first communication end sends a first laser beam and/or a first light path detection beam to a first reflector, wherein the first light path detection beam is a beam expanded laser beam or a non-laser beam;

the first communication end adjusts the incidence angle and/or incidence point of the first laser beam and/or the first light path detection beam on the reflecting surface of the first reflector in an open-loop or closed-loop mode, so that emergent light of the first laser beam reflected by the first reflector enters the light receiving channel of the second communication end;

after emergent light of the first laser beam reflected by the first reflector enters a light receiving channel of the second communication end, the first communication end uses light path alignment state feedback information from the second communication end to track a light path;

the first reflector has any one of a plane, an arc surface and a spherical surface.

The invention provides a wireless light beam reflection alignment receiving method, which comprises the following steps:

the second communication end receives the first laser beam or the first light path detection beam reflected by the first reflector or the first reflector and the second reflector; or the second communication end monitors the spot position of the first laser beam or the first optical path detection beam on the second reflector side or the second communication end side; the first light path detection light beam is a laser beam or a non-laser light beam expanded;

after receiving a signal that emergent light of the first laser beam reflected by the first reflector enters a light receiving channel of the second communication end at the second communication end, sending light path alignment state feedback information to the first communication end, wherein the light path alignment state feedback information is used for light path tracking; or after the second communication end monitors the spot position of the first laser beam or the first light path detection beam on the second reflector side or the second communication end side, sending spot/light beam irradiation area position information to the first communication end, wherein the spot/light beam irradiation area position information is used for light path alignment guidance;

wherein,

The optical path alignment state feedback information includes at least one of the following information:

an included angle between an optical axis of the first laser beam incident to the light receiving channel of the second communication end and a main optical axis of the light receiving channel of the second communication end;

the light spot of the first laser beam incident to the light receiving channel of the second communication end on the objective lens of the light receiving channel of the second communication end deviates from the distance and/or deviation direction of the main optical axis of the light receiving channel;

the offset and/or offset direction of the first laser beam incident to the light receiving channel of the second communication end on the light receiving channel imaging surface of the second communication end;

the position information of the light spot/light beam irradiation area comprises at least one of the following information:

the distance and/or relative position parameters of a spot/beam irradiation area of the first laser beam or the first light path detection beam on the side of the second reflector relative to the central point of the reflecting surface of the second reflector or the optical mark on the second reflector;

the first laser beam or the first optical path detects the distance and/or relative position parameters of the spot/beam irradiation area of the light beam at the second communication end side relative to the optical receiving channel antenna aperture surface of the second communication end or the optical mark on the second communication end.

The invention provides a wireless light beam reflection alignment transmitting device, which comprises:

the system comprises a first light beam transmitting module, an incident angle and/or incident point adjusting module and a light path alignment state feedback information receiving module; optionally, a spot/beam irradiation area position information receiving module is included, wherein,

the first light beam emitting module is used for sending a first laser beam and/or a first light path detection light beam to a first reflector, wherein the first light path detection light beam is a laser beam or a non-laser beam with expanded beam and comprises a first laser beam emitting component and/or a first light path detection light beam emitting component;

the incident angle and/or incident point adjusting module is used for adjusting the incident angle and/or incident point of the first laser beam and/or the first light path detection beam on the reflecting surface of the first reflector in an open-loop or closed-loop mode, so that the emergent light of the first laser beam reflected by the first reflector enters the light receiving channel of the second communication end, and comprises a first laser beam and/or first light path detection beam optical axis pointing adjusting module and/or a first laser beam and/or first light path detection beam light outlet position adjusting module;

the optical path alignment state feedback information receiving module is used for acquiring optical path alignment state information between a first laser beam and an optical receiving channel of a second communication end, the optical path alignment state information is used for optical path tracking between the first communication end and the second communication end, and the optical path alignment state feedback information receiving module comprises a first radio receiving channel module and a first radio antenna module;

the spot/beam irradiation area position information receiving module is used for aligning and guiding the first laser beam in a closed-loop alignment mode and comprises a second radio receiving channel module and a second radio antenna module.

The invention provides a wireless light beam reflection alignment receiving device, which comprises:

the system comprises a light beam receiving module, a light path alignment state information acquisition module and a light path alignment state information sending module; optionally, comprising: the device comprises a light spot/light beam irradiation area position detection module and a light spot/light beam irradiation area position information sending module; wherein,

the light beam receiving module is used for receiving a first laser beam or a first light path detection light beam reflected by the first reflector or the first reflector and the second reflector, and comprises a photoelectric detection device in a light receiving channel;

the optical path alignment state information acquisition module is used for acquiring alignment state information between a first laser beam and a second communication end light receiving channel, specifically, is used for acquiring optical path alignment state information between the first laser beam and the receiving channel of the light beam receiving module, and comprises at least one of a first laser beam incident angle judgment module, a first laser beam spot position identification module and a first laser beam landing position judgment module on an imaging surface;

the optical path alignment state information sending module is used for sending optical path alignment state feedback information to the first communication terminal and comprises a first radio sending channel component and an antenna component;

the light spot/light beam irradiation area position detection module is used for monitoring the light spot position of the first laser beam or the first light path detection light beam on the second reflector side or the second communication end side, and comprises a photoelectric detector and/or a photoelectric imaging sensor; the first light path detection light beam is a laser beam or a non-laser light beam expanded; the photoelectric detector is arranged in an adjacent area of an antenna aperture surface of the optical receiving channel at the second communication end, and is used for carrying out position estimation and light path alignment guiding on a light spot/light beam irradiation area of the first laser beam or the first light path detection light beam; the photoelectric imaging sensor is arranged in the optical receiving channel or outside the optical receiving channel of the second communication end and used for carrying out position estimation and optical path alignment guiding on a light spot/light beam irradiation area of the first laser beam or the first optical path detection light beam on the side of the second reflector or the side of the second communication end.

The light spot/light beam irradiation area position information sending module is used for sending light spot/light beam irradiation area position information to the first communication terminal and comprises a second radio sending channel component and an antenna component;

wherein,

the second reflector is provided with any one reflecting surface of a plane, an arc surface and a spherical surface;

The invention provides a wireless light beam reflection alignment system, which comprises:

the wireless light beam reflection is aligned with the transmitting device, the wireless light beam reflection is aligned with the receiving device, and the wireless light beam reflection system also comprises one or more reflector modules;

the reflector module comprises a reflective surface member;

the wireless light beam reflection alignment transmitting device transmits a laser beam to the wireless light beam reflection alignment receiving device through the reflector module;

preferably, the reflective surface element comprises an optical identifier having at least one dimension which is known, the optical identifier being used to determine the position and/or angle of the reflective surface element.

The method and the device for reflecting and aligning the wireless light beam provided by the embodiment of the invention can overcome the defect that the wireless laser link can not realize light path turning transmission at the transmitting and receiving ends in the prior art, and expand the application scene of the wireless light transmission technology.

Drawings

FIG. 1 is a flow chart of a method for reflecting, aligning and transmitting a wireless light beam according to an embodiment of the present invention;

fig. 2 is a flowchart of a method for receiving a reflected alignment of a wireless light beam according to an embodiment of the present invention;

FIG. 3 is a schematic diagram of a wireless light beam reflection alignment transmitting device according to an embodiment of the present invention;

fig. 4 is a schematic diagram illustrating a wireless light beam reflection alignment receiving apparatus according to an embodiment of the present invention.

Examples

Example 1 example of a Wireless Beam reflection alignment Transmission method

Referring to fig. 1, an embodiment of a method for reflecting, aligning and transmitting a wireless light beam provided by the present invention includes the following steps:

step S110, a first communication end sends a first laser beam and/or a first light path detection beam to a first reflector, wherein the first light path detection beam is a beam expanded laser beam or a non-laser beam;

step S120, the first communication end adjusts the incident angle and/or incident point of the first laser beam and/or the first light path detection beam on the reflecting surface of the first reflector in an open-loop or closed-loop mode, so that the emergent light of the first laser beam reflected by the first reflector enters the light receiving channel of the second communication end;

step S130, after emergent light of the first laser beam reflected by the first reflector enters a light receiving channel of the second communication end, the first communication end uses light path alignment state feedback information from the second communication end to track a light path;

The method of the present embodiment, wherein,

the method for adjusting the incidence angle and/or incidence point of the first laser beam on the reflecting surface of the first reflector by the first communication end in an open loop mode specifically comprises the following steps:

translating the optical axis of the first laser beam to change the incident point of the laser beam on the reflecting surface of the first reflector; preferably, the optical axis of the first laser beam is made to be in a first orientation, the minimum stroke length or the minimum row/column length of the optical axis translation is taken as a first distance value, and the row/column scanning is performed with the maximum stroke interval or the maximum row/column interval of the optical axis translation as a second distance value; more preferably, the optical axis direction of the first laser beam is adjusted to be in the second direction, the first distance value is used as the minimum stroke length or the minimum row/column length of the optical axis translation, and the second distance value is used as the maximum stroke interval or the maximum row/column interval of the optical axis translation to perform row/column scanning; or,

adjusting the optical axis direction of the first laser beam to change the incident angle and the incident point of the laser beam on the reflecting surface of the first reflector; preferably, the light outlet of the first laser beam is located at a first light outlet position, a first angle value is taken as a minimum direction adjusting angle range of the optical axis of the first laser beam for adjusting the direction in a first plane/dimension, and a second angle value is taken as a maximum direction adjusting angle interval of the optical axis of the first laser beam for adjusting the direction in a second plane/dimension to perform two-dimensional line-by-line/column scanning; more preferably, the light outlet of the first laser beam is located at the second light outlet position, the first angle value is used as the minimum direction adjusting angle range of the optical axis of the first laser beam for adjusting the direction in the first plane/dimension, and the second angle value is used as the maximum direction adjusting angle interval of the optical axis of the first laser beam for adjusting the direction in the second plane/dimension to perform two-dimensional line-by-line/column scanning; preferably, the first stroke value is used as the minimum stroke length or the minimum row/column length of the light outlet of the first laser beam, the second stroke value is used as the maximum stroke interval or the maximum row/column interval of the translation of the light outlet, the first residence interval value is used as the maximum residence interval of the translation of the light outlet, the row-by-row/column translation of the light outlet is carried out to obtain a group of light outlet residence points, the light outlet residence points comprise the first light outlet position and the second light outlet position, and the incidence angle and the incidence point of the laser beam on the reflecting surface of the first reflector are changed by adjusting the optical axis direction of the first laser beam on the light outlet residence points;

the first communication end adjusts the incidence angle and/or incidence point of the first laser beam on the reflecting surface of the first reflector in a closed-loop mode, and the method specifically comprises the following steps:

obtaining relative position information of the emergent light of the first laser beam reflected by the first reflector relative to the second reflector or relative to a falling point of the second communication end; adjusting the incident angle and/or incident point position of the first laser beam on the reflecting surface of the first reflector by using the relative position information of the falling point, so that the emergent light of the first laser beam reflected by the first reflector moves to a first neighborhood of the second reflector and/or the second communication end; or

Acquiring irradiation area position information of the first light path detection beam at the side of the second reflector and/or the side of the second communication end, and adjusting the incident angle and/or the incident point position of the optical axis of the first light path detection beam on the reflecting surface of the first reflector by using the irradiation area position information to enable the irradiation area of the first light path detection beam reflected by the first reflector to cover the second reflector and/or the receiving channel antenna aperture surface of the second communication end; adjusting the incident angle and/or incident point position of the first laser beam on the reflecting surface of the first reflector in the space angle of the first optical path detection beam, so that the first laser beam irradiates the antenna port surface of the receiving channel of the second reflector and/or the second communication end in a scanning mode;

the method for enabling the emergent light of the first laser beam reflected by the first reflector to enter the light receiving channel of the second communication end specifically comprises the following steps:

corresponding to the method for adjusting the incident angle and/or the incident point of the first laser beam on the reflecting surface of the first reflector in an open-loop mode, the first communication end receives an indication signal that the emergent light of the first laser beam enters a light receiving channel of the second communication end from the second communication end in the process of adjusting the incident angle and/or the incident point of the first laser beam on the reflecting surface of the first reflector, and after receiving the indication signal, the current incident angle and the incident point position of the laser beam relative to the first reflector are kept or laser beam alignment optimization is carried out based on the current incident angle and the incident point position of the laser beam relative to the first reflector; the laser beam alignment optimization comprises the following steps: acquiring an incident angle and/or incident point position control parameter corresponding to the incident angle and the incident point position of the laser beam to the first reflector at present, increasing or decreasing the incident angle and/or incident point position control parameter value by taking the incident angle and/or incident point position control parameter as a reference, and acquiring state indication information of the laser beam entering a light receiving channel of a second communication end from the second communication end corresponding to a new incident angle and/or incident point position control parameter value; selecting a better or optimal state from a group of state indicating information, determining an incident angle and/or an incident point position control parameter value corresponding to the better or optimal state, and using the parameter value to realize that emergent light of the first laser beam enters a light receiving channel of the second communication end;

corresponding to a method for adjusting the incidence angle and/or the incidence point of a first laser beam on the reflecting surface of a first reflector in a closed-loop manner, the method comprises the following steps:

adjusting a control parameter value of the incident angle and/or the incident point position of the first laser beam on the first reflector by using the relative position information of the emergent light of the first laser beam relative to the falling point of the second reflector or the relative position information of the emergent light of the first laser beam relative to the falling point of the second communication end, so that the falling point position of the emergent light of the first laser beam enters the first neighborhood of the second reflector and/or the second communication end; the first neighborhood comprises an area formed by points, wherein the distance between the first neighborhood and a central point of a reflecting surface of a second reflector/a central point of an aperture surface of a receiving antenna of a second communication end or an optical identifier on the second reflector/the second communication end is smaller than a neighborhood distance threshold;

after the position of a falling point of emergent light of the first laser beam is adjusted to a first neighborhood of the second reflector and/or the second communication end, the emergent light of the first laser beam enters a light receiving channel of the second communication end in a mode of direct guide alignment or scanning alignment in the neighborhood;

the direct guide alignment mode comprises the following operation steps:

increasing/decreasing the value of a pointing control parameter of the first laser beam and/or a position control parameter of a light outlet of the first laser beam, realizing the adjustment of the incident angle and/or the incident point position of the first laser beam relative to the first reflector, and enabling the distance from the position of the falling point of emergent light of the first laser beam to the center point of the reflecting surface of the second reflector/the center point of the receiving antenna aperture surface of the second communication end or to the optical identifier on the second reflector/the second communication end to be changed;

if the distance from the position of the falling point of the emergent light of the first laser beam to the center point of the reflecting surface of the second reflector/the center point of the receiving antenna aperture surface of the second communication end or to the optical identifier on the second reflector/the second communication end is increased, the value of the pointing control parameter of the first laser beam and/or the position control parameter of the light outlet of the first laser beam is reduced/increased;

after receiving an indication signal that the position of a falling point of emergent light of the first laser beam enters the second communication end from the second communication end, keeping a pointing control parameter of the first laser beam and/or a position control parameter value of a light outlet of the first laser beam or carrying out laser beam alignment optimization based on a current pointing control parameter of the laser beam and/or a position control parameter value of the light outlet of the first laser beam;

the intra-neighborhood scanning alignment mode comprises the following operation steps:

determining the scale of a two-dimensional scanning area, wherein the two-dimensional scanning area comprises the central point position of a reflecting surface of a second reflector or the central point position of an aperture surface of a receiving antenna of a second communication end and is at least partially overlapped with the first neighborhood;

determining a neighborhood two-dimensional scanning value range of a pointing control parameter of the first laser beam and/or a position control parameter of a light outlet of the first laser beam by using the scale of the two-dimensional scanning area;

adjusting a pointing control parameter of the first laser beam and/or a position control parameter of a first laser beam light outlet in a neighborhood two-dimensional scanning value range to realize scanning of the first laser beam on a neighborhood two-dimensional scanning area;

a method of scanning said first laser beam over said two-dimensional scan area, comprising the steps of:

translating the optical axis of the first laser beam to change the incident point of the laser beam on the reflecting surface of the first reflector; preferably, the optical axis of the first laser beam is in a first orientation in the neighborhood, the first distance value in the neighborhood is taken as the minimum stroke length or the minimum row/column length of the optical axis translation, and the second distance value in the neighborhood is taken as the maximum stroke interval or the maximum row/column interval of the optical axis translation to perform row/column scanning; more preferably, the optical axis direction of the first laser beam is adjusted to be in the second direction in the neighborhood, the first distance value in the neighborhood is taken as the minimum stroke length or the minimum row/column length of the optical axis translation, and the second distance value in the neighborhood is taken as the maximum stroke interval or the maximum row/column interval of the optical axis translation to perform row/column scanning; or

Adjusting the optical axis direction of the first laser beam to change the incidence angle and the incidence point of the laser beam on the reflecting surface of the first reflector; preferably, the light outlet of the first laser beam is located at a first light outlet position, a first angle value is taken as a minimum direction adjusting angle range of the optical axis of the first laser beam for adjusting the direction in a first plane/dimension, and a second angle value is taken as a maximum direction adjusting angle interval of the optical axis of the first laser beam for adjusting the direction in a second plane/dimension to perform two-dimensional line-by-line/column scanning; more preferably, the light outlet of the first laser beam is located at the second light outlet position, the first angle value is used as the minimum direction adjusting angle range of the optical axis of the first laser beam for adjusting the direction in the first plane/dimension, and the second angle value is used as the maximum direction adjusting angle interval of the optical axis of the first laser beam for adjusting the direction in the second plane/dimension to perform two-dimensional line-by-line/column scanning; preferably, the first stroke value in the neighborhood is used as the minimum stroke length or the minimum row/column length of the light outlet of the first laser beam, the second stroke value in the neighborhood is used as the maximum stroke interval or the maximum row/column interval of the translation of the light outlet, the first residence interval value in the neighborhood is used as the maximum residence interval of the translation of the light outlet, the line-by-line/column translation of the light outlet is carried out to obtain a group of light outlet residence points, the light outlet residence points comprise the first light outlet position and the second light outlet position, and on the light outlet residence points, the optical axis direction of the first laser beam is adjusted to change the incident angle and the incident point of the laser beam on the reflecting surface of the first reflector;

preferablyThe method for acquiring the relative position information of the emergent light of the first laser beam reflected by the first reflector relative to the second reflector or the falling point of the second communication end comprises the following steps:

acquiring a spot image of the emergent light of the first laser beam reflected by a first reflector on the side of a second reflector/second communication end and an image of the second reflector/second communication end from the first reflector by using an imaging sensor at the first communication end; and/or

Acquiring a spot image of the first laser beam on one side of the second reflector/second communication end and an image of the second reflector/second communication end from the second reflector by using an imaging sensor at the second communication end;

the first communication end acquires the relative position information of the first laser beam relative to the falling point of the second reflector/the second communication end by using the spot image and the image of the second reflector/the second communication end; and/or

The second communication terminal acquires the relative position information of the first laser beam relative to the landing point of the second reflector/the second communication terminal by using the spot image and the image of the second reflector/the second communication terminal, and sends the information to the first communication terminal through a radio interface;

preferablyThe method for acquiring the position information of the irradiation area of the first optical path detection beam on the second reflector side and/or the second communication end side comprises the following steps:

acquiring a spot image of the emergent light of the first light path detection beam reflected by a first reflector at one side of a second reflector/second communication end and an image of the second reflector/second communication end from the first reflector by using an imaging sensor at the first communication end; and/or

Acquiring a spot image of the first light path detection beam on one side of the second reflector/second communication end and an image of the second reflector/second communication end from the side of the second reflector by using an imaging sensor at the second communication end; or the second communication end uses the photoelectric detector to receive the first light path detection light beam irradiated to the second communication end;

the first communication end acquires the relative position information of the first light path detection light beam relative to the falling point of the second reflector/the second communication end by using the light spot image and the image of the second reflector/the second communication end; and/or

The second communication terminal acquires the relative position information of the first laser beam relative to the landing point of the second reflector/the second communication terminal by using the spot image and the image of the second reflector/the second communication terminal, and sends the information to the first communication terminal through a radio interface; or after the photoelectric detector at the second communication end receives the first optical path detection beam, the photoelectric detector sends irradiation area position indication information of the first optical path detection beam to the first communication end;

preferablyThe first communication end adjusts the first laser beam to be reflected at the first reflector in an open-loop or closed-loop modeMethod for the angle of incidence and/or the point of incidence of a radiation surface, comprising the following steps:

acquiring optical identification position information at a first reflector, and determining the incident angle and/or incident point position of a first laser beam/first light path detection beam to the first reflector by using the optical identification position information, or determining the adjustment amount and/or adjustment direction of the optical axis direction of the first laser beam/first light path detection beam by using the optical identification position information; and/or

Acquiring optical mark position information at the second reflector, and determining the incident angle and/or incident point position of the first laser beam/first optical path detection beam to the second reflector by using the optical mark position information, or determining the adjustment amount and/or adjustment direction of the optical axis direction of the first laser beam/first optical path detection beam by using the optical mark position information.

The method of the present embodiment, wherein,

the method for the first communication end to track the optical path by using the optical path alignment state feedback information from the second communication end comprises the following steps:

acquiring optical path alignment state feedback information from the second communication terminal using a radio interface, the optical path alignment state feedback information including at least one of:

and adjusting the optical path alignment state from the first laser beam to the second communication terminal by using the optical path alignment state feedback information, wherein the method specifically comprises at least one of the following steps A to C:

step A, comparing an included angle value between an optical axis of a first laser beam incident to a light receiving channel of a second communication end and a main optical axis of the light receiving channel of the second communication end with a preset included angle adjusting threshold, and if the included angle value is smaller than the preset included angle adjusting threshold, not adjusting the included angle; if the included angle value is larger than the included angle adjusting threshold, adjusting the pointing control parameter of the first laser beam and/or the position control parameter of the first laser beam light outlet to enable the included angle value to be smaller than the included angle adjusting threshold; preferably, a pointing control parameter of the first laser beam and/or a position control parameter of the first laser beam light outlet are/is adjusted to enable the included angle value to be smaller than an included angle holding threshold, and the included angle holding threshold is smaller than an included angle adjusting threshold; or

Adjusting the pointing control parameter of the first laser beam and/or the position control parameter of the light outlet of the first laser beam by directly using the included angle adjusting direction and the adjusting amount data sent by the second communication terminal until the second communication terminal sends indication information for stopping adjustment or indication information that the included angle value is smaller than the included angle maintaining threshold;

step B, comparing the distance value of the light spot of the first laser beam incident to the light receiving channel of the second communication end on the objective lens of the light receiving channel of the second communication end, which deviates from the main optical axis of the light receiving channel, with a preset light spot distance adjustment threshold, and if the distance value is smaller than the preset light spot distance adjustment threshold, not adjusting the distance; if the distance value is larger than the light spot distance adjusting threshold, adjusting a pointing control parameter of the first laser beam and/or a position control parameter of a light outlet of the first laser beam to enable the distance value to be smaller than the light spot distance adjusting threshold; preferably, a pointing control parameter of the first laser beam and/or a position control parameter of the first laser beam light outlet are/is adjusted, so that the distance value is smaller than a spot distance holding threshold, and the spot distance holding threshold is smaller than the spot distance adjustment threshold; or

Directly using the light spot position adjusting direction and/or adjusting quantity data sent by the second communication terminal to adjust the pointing control parameter of the first laser beam and/or the position control parameter of the light outlet of the first laser beam until the second communication terminal sends indication information for terminating adjustment or indication information that the distance value is smaller than the distance keeping threshold;

step C, comparing the offset of the first laser beam incident to the light receiving channel of the second communication end on the light receiving channel imaging surface of the second communication end with a preset imaging surface offset adjustment threshold, and if the offset is smaller than the preset imaging surface offset adjustment threshold, not adjusting the offset; if the offset is greater than the offset adjustment threshold of the imaging surface, adjusting the pointing control parameter of the first laser beam and/or the position control parameter of the light outlet of the first laser beam to enable the offset to be smaller than the offset adjustment threshold of the imaging surface; preferably, a pointing control parameter of the first laser beam and/or a position control parameter of the first laser beam light outlet are/is adjusted, so that the offset is smaller than an imaging surface offset holding threshold, and the imaging surface offset holding threshold is smaller than the image surface offset adjustment threshold; or

And adjusting the pointing control parameter of the first laser beam and/or the position control parameter of the light outlet of the first laser beam by directly using the offset adjustment direction and/or the adjustment amount data on the imaging surface sent by the second communication terminal until the second communication terminal sends indication information for terminating adjustment or indication information that the offset is smaller than the offset holding threshold of the imaging surface.

The method of the present embodiment, wherein,

the translation of the optical axis of the first laser beam is realized by moving the position of a light outlet of the light source or by moving the position of a reflecting mirror which reflects a laser beam;

the adjustment of the optical axis direction of the first laser beam is realized by adjusting at least one of the normal direction of a light outlet of the light source, the relative position of the optical axis of a lens for refracting and adjusting the direction of the first laser beam and the optical axis of the first laser beam and the angle of a reflector for reflecting the first laser beam;

the pointing control parameters of the first laser beam comprise one or more of current/voltage parameters for controlling the normal direction of a light outlet of the light source, current/voltage parameters for controlling the relative position of the optical axis of a lens for performing refraction and direction adjustment on the first laser beam and the optical axis of the first laser beam, and current/voltage parameters for controlling the angle of a reflector for reflecting the first laser beam;

the position control parameters of the first laser beam light outlet comprise current/voltage parameters for controlling the position of the light source light outlet or current/voltage parameters for controlling the angle of a reflector reflecting the first laser beam;

preferably, the translation of the optical axis of the first laser beam is achieved using a combination of an optical galvanometer or an optical galvanometer and a motor driven linear displacement.

The method of the present embodiment, wherein,

the method for adjusting the incidence angle and/or incidence point of the first laser beam on the reflecting surface of the first reflector by the first communication terminal in an open-loop or closed-loop mode further comprises the following steps:

recording a pointing control parameter of a corresponding first laser beam and/or a position control parameter of a first laser beam light outlet in the process of adjusting the incident angle and/or incident point position of a first laser beam/first light path detection beam on a first reflector;

preferably, recording a pointing control parameter of the first laser beam and/or a position control parameter of the first laser beam light outlet when the first laser beam enters the optical path alignment state;

more preferably, a pointing control parameter of the first laser beam and/or a position control parameter of the first laser beam light exit when entering the optical path alignment state are recorded and used for reconstruction of the optical path.

Embodiment 2 example of a method for receiving a reflected beam in a wireless manner

Referring to fig. 2, an embodiment of a method for receiving a reflected alignment of a wireless light beam provided by the present invention includes the following steps:

step S210, the second communication end receives the first laser beam or the first light path detection beam reflected by the first reflector or the first reflector and the second reflector; or the second communication end monitors the spot position of the first laser beam or the first optical path detection beam on the second reflector side or the second communication end side; the first light path detection light beam is a laser beam or a non-laser light beam expanded;

step S220, after the second communication end receives a signal that emergent light of the first laser beam reflected by the first reflector enters a light receiving channel of the second communication end, light path alignment state feedback information is sent to the first communication end, and the light path alignment state feedback information is used for light path tracking; or after the second communication end monitors the spot position of the first laser beam or the first light path detection beam on the second reflector side or the second communication end side, sending spot/light beam irradiation area position information to the first communication end, wherein the spot/light beam irradiation area position information is used for light path alignment guidance;

wherein,

The method of this embodiment further includes a method of providing at least one of an optical identifier, a photodetector, and a photoelectric imaging sensor at the second communication end, wherein,

the method for setting the optical mark comprises the following steps:

an optical identifier with a known shape and dimension is arranged at the second communication end, is passive or active and is used for carrying out position estimation and light path alignment guidance on a light spot/light beam irradiation area of the first laser beam or the first light path detection light beam;

the method for arranging the photoelectric detector comprises the following steps:

at least one photoelectric detector is arranged in an adjacent area of an antenna aperture surface of an optical receiving channel of the second communication end, and the photoelectric detector is used for carrying out position estimation and light path alignment guiding on a light spot/light beam irradiation area of the first laser beam or the first light path detection light beam;

the method for arranging the photoelectric imaging sensor comprises the following steps:

at least one photoelectric imaging sensor is arranged in the optical receiving channel or outside the optical receiving channel of the second communication end, and the photoelectric imaging sensor is used for carrying out position estimation and optical path alignment guiding on a light spot/light beam irradiation area of the first laser beam or the first optical path detection light beam on the side of the second reflector or the side of the second communication end.

Example of an apparatus for reflecting and aligning a Wireless light Beam

Referring to fig. 3, the embodiment of the present invention provides a wireless light beam reflection alignment transmitting device 300, including:

a first light beam emitting module 310, an incident angle and/or incident point adjusting module 320, an optical path alignment state feedback information receiving module 330; optionally, a spot/beam irradiation area position information receiving module 340 is included, wherein,

the first beam emitting module 310 is configured to emit a first laser beam 311 and/or a first optical path probe beam (the first optical path probe beam is not shown in fig. 3) to the first reflector 350, wherein the first optical path probe beam is an expanded laser beam or a non-laser beam and includes a first laser beam emitting component and/or a first optical path probe beam emitting component;

the incident angle and/or incident point adjusting module 320 is configured to adjust an incident angle and/or an incident point of the first laser beam 311 and/or the first optical path probe beam on the reflecting surface of the first reflector 350 in an open-loop or closed-loop manner, so that the emergent light of the first laser beam 311 reflected by the first reflector 350 enters the light receiving channel of the second communication end, and includes a first laser beam and/or a first optical path probe beam optical axis pointing adjusting module, and/or a first laser beam and/or a first optical path probe beam light outlet position adjusting module;

an optical path alignment state feedback information receiving module 330, configured to obtain optical path alignment state information between the first laser beam 311 and the optical receiving channel of the second communication end, where the optical path alignment state information is used for optical path tracking between the first communication end and the second communication end, and includes a first radio receiving channel module and a first radio antenna module;

the spot/beam irradiation area position information receiving module 340 is used for aligning and guiding the first laser beam 311 in a closed-loop alignment mode, and includes a second radio receiving channel module and a second radio antenna module.

The present embodiment provides an apparatus, wherein,

the incident angle and/or incident point adjusting module 320 is configured to perform at least one of the following operations:

the operation of adjusting the incident angle and/or the incident point of the first laser beam 311 on the reflecting surface of the first reflecting body 350 in an open-loop manner specifically includes the following steps:

translating the optical axis of the first laser beam to change the incident point of the laser beam on the reflecting surface of the first reflector 350; preferably, the optical axis of the first laser beam 311 is made to be in the first direction 311a, the line/column scanning is performed with the first distance value as the minimum stroke length or the minimum row/column length of the optical axis translation, and the second distance value as the maximum stroke interval or the maximum row/column interval of the optical axis translation; more preferably, the optical axis direction of the first laser beam is adjusted to be in the second direction, the first distance value is used as the minimum stroke length or the minimum row/column length of the optical axis translation, and the second distance value is used as the maximum stroke interval or the maximum row/column interval of the optical axis translation to perform row/column scanning; or,

adjusting the optical axis direction of the first laser beam 311 to change the incident angle and the incident point of the laser beam on the reflecting surface of the first reflector; preferably, the light exit of the first laser beam 311 is located at the first light exit position, the first angle value is used as the minimum direction adjustment angle range of the optical axis of the first laser beam for adjusting the direction in the first plane/dimension, and the second angle value is used as the maximum direction adjustment angle interval of the optical axis of the first laser beam for adjusting the direction in the second plane/dimension, so as to perform two-dimensional line-by-line/column scanning; more preferably, the light exit of the first laser beam 311 is located at the second light exit position, the first angle value is used as the minimum direction adjustment angle range of the optical axis of the first laser beam for adjusting the pointing direction in the first plane/dimension, and the second angle value is used as the maximum direction adjustment angle interval of the optical axis of the first laser beam for adjusting the pointing direction in the second plane/dimension, so as to perform two-dimensional line-by-line/column scanning; preferably, the first stroke value is used as the minimum stroke length or the minimum row/column length of the light outlet of the first laser beam, the second stroke value is used as the maximum stroke interval or the maximum row/column interval of the translation of the light outlet, the first residence interval value is used as the maximum residence interval of the translation of the light outlet, the row-by-row/column translation of the light outlet is carried out to obtain a group of light outlet residence points, the light outlet residence points comprise the first light outlet position and the second light outlet position, and the incidence angle and the incidence point of the laser beam on the reflecting surface of the first reflector are changed by adjusting the optical axis direction of the first laser beam on the light outlet residence points;

the operation of adjusting the incidence angle and/or incidence point of the first laser beam on the reflecting surface of the first reflector in a closed-loop mode specifically comprises the following steps:

the spot/beam irradiation area position information receiving module 340 is used to acquire the relative position information of the emergent light of the first laser beam reflected by the first reflector 350 with respect to the second reflector or the falling point of the second communication end; adjusting the incident angle and/or incident point position of the first laser beam on the reflecting surface of the first reflector by using the relative position information of the falling point, so that the emergent light of the first laser beam reflected by the first reflector moves to a first neighborhood of the second reflector and/or the second communication end; or

The light spot/light beam irradiation area position information receiving module 340 is used for acquiring irradiation area position information of the first light path detection light beam on the second reflector side and/or the second communication end side, and the irradiation area position information is used for adjusting the incident angle and/or incident point position of the optical axis of the first light path detection light beam on the reflection surface of the first reflector, so that the irradiation area of the first light path detection light beam reflected by the first reflector covers the antenna aperture surface of the receiving channel of the second reflector and/or the second communication end; adjusting the incident angle and/or incident point position of the first laser beam on the reflecting surface of the first reflector in the space angle of the first optical path detection beam, so that the first laser beam irradiates the antenna port surface of the receiving channel of the second reflector and/or the second communication end in a scanning mode; preferably, the adjusting of the incident angle and/or the incident point position of the first laser beam on the reflecting surface of the first reflector within the spatial angle of the first optical path probe beam is performed with reference to the optical axis direction when the first optical path probe beam covers the second reflector and/or the second communication end and the light exit of the first optical path probe beam; referring to fig. 3, a radio interface 341 is an interface used by the light spot/light beam irradiation area position information receiving module 340 to obtain irradiation area position information of the first light path probe light beam on the second reflector side and/or the second communication end side;

the operation of making the outgoing light of the first laser beam 311 reflected by the first reflector 350 enter the light receiving channel of the second communication terminal specifically includes the following steps:

using the light spot/light beam irradiation area position information receiving module 340 to obtain the relative position information of the emergent light of the first laser beam relative to the landing point of the second reflector, or using the light spot/light beam irradiation area position information receiving module 340 to obtain the relative position information of the emergent light of the first laser beam relative to the landing point of the second communication end, adjusting the incident angle and/or the control parameter value of the incident point position of the first laser beam to the first reflector, and enabling the landing point position of the emergent light of the first laser beam to enter the first neighborhood of the second reflector and/or the second communication end; the first neighborhood comprises an area formed by points, wherein the distance between the first neighborhood and a central point of a reflecting surface of a second reflector/a central point of an aperture surface of a receiving antenna of a second communication end or an optical identifier on the second reflector/the second communication end is smaller than a neighborhood distance threshold;

the direct guide alignment mode comprises the following operation steps:

preferablyThe method for adjusting the incidence angle and/or incidence point of the first laser beam on the reflecting surface of the first reflector by the first communication terminal in an open-loop or closed-loop mode comprises the following steps:

The optical path alignment state feedback information receiving module 330 is configured to obtain optical path alignment state feedback information from the second communication terminal, where the optical path alignment state feedback information includes at least one of the following information:

the optical alignment state feedback information receiving module 330 receives optical alignment state feedback information using a radio interface 331;

preferably, the optical path alignment state feedback information receiving module 330 shares a radio frequency channel and an antenna module with the spot/beam irradiation region position information receiving module 340;

Example 4A Wireless light reflection alignment receiver

Referring to fig. 4, an embodiment of a wireless light beam reflection alignment receiving apparatus 400 provided by the present invention includes:

a light beam receiving module 410, a light path alignment state information collecting module 420, a light path alignment state information transmitting module 430; optionally, comprising: a light spot/light beam irradiation region position detection module 460, a light spot/light beam irradiation region position information transmission module 440; wherein,

the light beam receiving module 410 is configured to receive the first laser beam 311 or the first optical path detection light beam reflected by the first reflector 350 or the first reflector 350 and the second reflector 450, and includes a photodetection device in a light receiving channel;

the optical path alignment state information acquisition module 420 is configured to acquire alignment state information between the first laser beam and the second communication end light receiving channel, specifically, to acquire optical path alignment state information between the first laser beam 311 and the receiving channel of the light beam receiving module 410, and includes at least one of a first laser beam 311 incident angle determination module, a first laser beam spot position identification module, and a first laser beam 311 landing point position determination module on an imaging surface;

the optical path alignment state information sending module 430 is configured to send optical path alignment state feedback information to the first communication terminal, where the optical path alignment state feedback information includes a first radio sending channel component and an antenna component; the first radio transmission channel part and antenna part transmit radio signals or air interface signals 331;

the light spot/light beam irradiation area position detection module 460 is configured to monitor the light spot position of the first laser beam or the first light path detection light beam on the second reflector side or on the second communication end side, and includes a photodetector and/or a photoelectric imaging sensor; the first light path detection light beam is a laser beam or a non-laser light beam expanded; the photoelectric detector is arranged in an adjacent area of an antenna aperture surface of the optical receiving channel at the second communication end, and is used for carrying out position estimation and light path alignment guiding on a light spot/light beam irradiation area of the first laser beam or the first light path detection light beam; the photoelectric imaging sensor is arranged in the optical receiving channel or outside the optical receiving channel of the second communication end and used for carrying out position estimation and optical path alignment guiding on a light spot/light beam irradiation area of the first laser beam or the first optical path detection light beam on the side of the second reflector or the side of the second communication end.

The light spot/light beam irradiation area position information sending module 440 is configured to send light spot/light beam irradiation area position information to the first communication terminal, and includes a second radio transmission channel component and an antenna component; the second radio transmit channel means and antenna means transmit radio signals or air interface signals 341;

wherein,

In the apparatus of this embodiment, the light spot/light beam irradiation area position detection module 460 monitors the light spot position of the first laser beam 311a having the first optical axis direction at the second communication end, and sends the light spot position information of the first laser beam 311a having the first optical axis direction to the first communication end by using the light spot/light beam irradiation area position information sending module 440; the first communication device receives the spot position information of the first laser beam 311a through the spot/beam irradiation area position information receiving module 330, and adjusts the optical axis direction of the first laser beam 311a using the spot/beam irradiation area position information to enter the optical receiving channel of the beam receiving module 410.

The apparatus of this embodiment further includes an optical identifier module (not shown in the optical identifier in this embodiment) disposed at the second communication end, where the optical identifier module includes an optical identifier with a known shape and dimension, and the optical identifier is a passive or active unit, and is used for performing position estimation and optical path alignment guidance on the spot/beam irradiation area of the first laser beam or the first optical path probe beam.

Example of embodiment 5 Wireless Beam reflection alignment System

Referring to fig. 3 and 4, an embodiment of a system for reflected alignment of a wireless light beam provided by the present invention includes:

a wireless light beam reflection alignment transmitting device 300 and a wireless light beam reflection alignment receiving device 400, further comprising one or more reflector modules 350/350;

the reflector module 350/350 includes a reflective surface component;

the wireless light beam reflection alignment transmitting device 300 sends the first laser beam 311 to the wireless light beam reflection alignment receiving device 400 through the reflector module 350;

preferably, the reflector module 350/350 contains at least one optical marker with a known dimension that is used to determine the position and/or angle of the reflective surface component.

The method for aligning the reflection of the wireless light beam provided by the embodiment of the invention can be wholly or partially realized by software instructions and/or hardware circuits; the wireless light beam reflection alignment device provided by the embodiment of the invention can be wholly or partially realized by using an electronic technology, an optoelectronic technology and an electromechanical servo technology.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention.

Claims

1. A method for reflected alignment emission of a wireless optical beam, comprising the steps of:

2. The method of claim 1, wherein,

the direct guide alignment mode comprises the following operation steps:

preferablyThe method of acquiring the position information of the irradiation area of the first optical path probe beam on the second reflector side and/or the second communication end side includes, for exampleThe following steps:

3. The method of claim 1, wherein,

4. A method for receiving a reflected alignment of a wireless light beam comprises the following steps:

wherein,

the first reflector is provided with any one of a plane, an arc surface and a spherical surface;

5. The method of claim 4, further comprising providing at least one of an optical marker, a photodetector, and a photoelectric imaging sensor at the second communication end, wherein,

the method for setting the optical mark comprises the following steps:

6. A wireless optical beam reflection alignment transmitting device, comprising:

7. The apparatus of claim 6, wherein,

the incident angle and/or incident point adjusting module is used for executing at least one of the following operations:

the operation of adjusting the incidence angle and/or the incidence point of the first laser beam on the reflecting surface of the first reflector in an open-loop mode specifically comprises the following steps:

using a light spot/light beam irradiation area position information receiving module to obtain the relative position information of the emergent light of the first laser beam reflected by the first reflector relative to the second reflector or relative to the falling point of the second communication end; adjusting the incident angle and/or incident point position of the first laser beam on the reflecting surface of the first reflector by using the relative position information of the falling point, so that the emergent light of the first laser beam reflected by the first reflector moves to a first neighborhood of the second reflector and/or the second communication end; or

The method comprises the steps that a light spot/light beam irradiation area position information receiving module is used for obtaining irradiation area position information of a first light path detection light beam on the side of a second reflector and/or the side of a second communication end, the irradiation area position information is used for adjusting the incident angle and/or incident point position of the optical axis of the first light path detection light beam on the reflecting surface of the first reflector, and the irradiation area of the first light path detection light beam reflected by the first reflector covers the antenna port surface of a receiving channel of the second reflector and/or the second communication end; adjusting the incident angle and/or incident point position of the first laser beam on the reflecting surface of the first reflector in the space angle of the first optical path detection beam, so that the first laser beam irradiates the antenna port surface of the receiving channel of the second reflector and/or the second communication end in a scanning mode;

the operation of making the emergent light of the first laser beam reflected by the first reflector enter the light receiving channel of the second communication end specifically includes the following steps:

acquiring relative position information of the emergent light of the first laser beam relative to a landing point of a second reflector by using a light spot/light beam irradiation area position information receiving module, or acquiring relative position information of the emergent light of the first laser beam relative to a landing point of a second communication end by using a light spot/light beam irradiation area position information receiving module, and adjusting a control parameter value of the incident angle and/or the incident point position of the first laser beam on the first reflector to enable the landing point position of the emergent light of the first laser beam to enter a first neighborhood of the second reflector and/or the second communication end; the first neighborhood comprises an area formed by points, wherein the distance between the first neighborhood and a central point of a reflecting surface of a second reflector/a central point of an aperture surface of a receiving antenna of a second communication end or an optical identifier on the second reflector/the second communication end is smaller than a neighborhood distance threshold;

the direct guide alignment mode comprises the following operation steps:

preferablyThe method for acquiring the position information of the irradiation area of the first optical path detection beam on the second reflector side and/or the second communication end side comprises the following steps：

Acquiring optical identification position information at a second reflector, and determining the incident angle and/or incident point position of the first laser beam/first light path detection beam to the second reflector by using the optical identification position information, or determining the adjustment amount and/or adjustment direction of the optical axis direction of the first laser beam/first light path detection beam by using the optical identification position information;

the optical path alignment state feedback information receiving module is configured to obtain optical path alignment state feedback information from a second communication terminal, where the optical path alignment state feedback information includes at least one of the following information:

8. A wireless optical beam reflection alignment receiving device, comprising:

the light spot/light beam irradiation area position detection module is used for monitoring the light spot position of the first laser beam or the first light path detection light beam on the second reflector side or the second communication end side, and comprises a photoelectric detector and/or a photoelectric imaging sensor; the first light path detection light beam is a laser beam or a non-laser light beam expanded; the photoelectric detector is arranged in an adjacent area of an antenna aperture surface of the optical receiving channel at the second communication end, and is used for carrying out position estimation and light path alignment guiding on a light spot/light beam irradiation area of the first laser beam or the first light path detection light beam; the photoelectric imaging sensor is arranged in an optical receiving channel of the second communication end or outside the optical receiving channel and used for carrying out position estimation and light path alignment guiding on a light spot/light beam irradiation area of the first laser beam or the first light path detection light beam on the side of the second reflector or the side of the second communication end;

wherein,

9. The apparatus of claim 8, further comprising an optical marker module disposed at the second communication end, the module comprising an optical marker of known shape and dimension, the optical marker being a passive or active element for performing position estimation and optical path alignment guidance of the spot/beam illuminated area of the first laser beam or the first optical path probe beam.

10. A wireless light beam reflection alignment system based on the wireless light beam reflection alignment transmitting device of claim 6 and the wireless light beam reflection alignment receiving device of claim 8, further comprising one or more reflector modules;

the reflector module comprises a reflective surface member;