CN109150305B - Remote laser communication device - Google Patents
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- CN109150305B CN109150305B CN201811324594.6A CN201811324594A CN109150305B CN 109150305 B CN109150305 B CN 109150305B CN 201811324594 A CN201811324594 A CN 201811324594A CN 109150305 B CN109150305 B CN 109150305B
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- 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
- H04B10/112—Line-of-sight transmission over an extended range
- H04B10/1123—Bidirectional transmission
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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Abstract
The invention discloses a remote laser communication device, which comprises a laser transceiver, a laser emitter, a photosensitive sensor array, a power supply, a data line, a master controller, a behavior controller and a high-frequency and power controller, wherein the laser emitter and the photosensitive sensor array are respectively arranged on the left side wall and the right side wall of the laser transceiver, an angle control motor is arranged on the left side of the photosensitive sensor array, a gear control motor is arranged on the right side of the bottom of the laser transceiver, a dimming lens is arranged in an inner cavity on the right side of the laser transceiver, and an automatic tracking and orientation system is arranged at the top of a focusing reflector.
Description
Technical Field
The invention relates to the technical field of communication, in particular to a remote laser communication device.
Background
Laser communication is a wireless communication technology that uses optical signals as a transmission information carrier, and optical data transmission is based on a carrier form. Compared to the frequency range of visible light, 4.2 x 10 x 14 to 7.8 x 10 x 14hz, the order of magnitude difference in the frequency 10 x 9hz of the radio is not so great as to be within practical data transmission applications. This is because the modulation of the optical carrier is not very different from the advancement of the radio modulation technology under the existing technical thought, and because the frequency of the light is faster, the requirements on the technology are higher. Therefore, the method has no great development prospect in the field of laser remote data transmission. Especially today, space technology is continuously developed, and because tens of G high-definition continuous video data per second cannot be quickly transmitted to the ground, ground personnel can only analyze static images, and the progress and direction of scientific research are seriously influenced.
However, since the optical data transmission based on the prior art is due to interference of substances in the atmosphere, although the data transmission speed of far-beyond radio can be obtained in a laboratory, the requirement on the atmosphere is higher, so that the transmission speed of Gbps is still slow compared with Tbps and Pbps in practical application. The most important point is that the manufacturing cost is high, the structure is precise, especially the optical carrier modem, more only a few companies and scientific research units can produce and manufacture, which is disadvantageous to the space technology progress, the Chinese patent publication No. CN201510958059.6 discloses an electromagnetic wave analog digital high-system transmission system and a transmission method thereof, the patent has the advantages of small signal interference, low energy consumption, large data transmission quantity and strong safety in the electromagnetic wave transmission process, and the technical idea of the invention patent can be completely applied to optical data transmission because the optical wave is also an electromagnetic wave, but no optical data transmission invention patent and no optical data transmission product are invented based on the patent in the market at present, therefore, the invention is based on the electromagnetic wave analog digital high-system and the transmission method thereof disclosed in the Chinese patent publication No. CN201510958059.6, and a remote laser communication device is provided.
Disclosure of Invention
The invention provides a remote laser communication device, which designs a brand new receiving and transmitting device based on optical communication, can greatly improve the optical communication speed, is completely based on the existing optical communication technology, does not use an expensive optical modem, has simple device structure, can resolve signals more clearly, has low cost, and can realize higher speed on the existing communication products only by replacing transmitting and receiving devices.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:
the utility model provides a remote laser communication device, includes laser transceiver, sensor wire, adjusting lens outer box, power cord, data line, master controller, action controller and high frequency and power controller, laser transceiver's left side is provided with laser transmitter, laser transceiver's inner chamber right side is provided with photosensitive sensor array, photosensitive sensor array's left side is provided with angle control motor, laser transceiver's right side outer wall has cup jointed adjusting lens outer box, adjusting lens outer box's inner chamber bottom is provided with gear control motor, adjusting lens outer box's inner chamber is provided with helical gear, and gear control motor's power take off end is provided with the drive gear with helical gear matched with, two sets of be provided with the dimming lens between the helical gear, the top and the bottom of dimming lens all are provided with the dimming lens gear, two sets of the dimming lens gear have all cup jointed the lens dead lever, laser transceiver's circumference outer wall is provided with the triangular support frame, the one end that the triangular support frame kept away from laser transceiver is connected with the focus mirror, and focuses on the automatic mirror that focuses on, and focuses on the lens tracking mirror that the focus mirror is kept away from the top of the setting up the dimming lens;
the laser transmitter comprises eight groups of data exciters and one group of positioning and interference compensation lasers, wherein two groups of data exciters are distributed above, below, left side and right side of the positioning and interference compensation lasers along the axial direction of the positioning and interference compensation lasers, and the central point connecting lines of the four groups of data exciters above and below are mutually perpendicular to the central point connecting lines of the four groups of data exciters on the left side and the right side;
the photosensitive sensor array comprises an inner sensor array, an outer sensor array and a polarizer, the outer sensor array is sleeved on the outer wall of the inner sensor array, and the polarizer is arranged on one side, close to the dimming lens, of the inner sensor array;
the high-frequency and power controller comprises a high-frequency switch and a power amplification circuit, the master controller is electrically connected with the high-frequency switch through a data line, the behavior controller is electrically connected with the power amplification circuit through a data line, and the power amplification circuit is electrically connected with the data exciter and the power supply through a power line;
the total controller comprises a binary data conversion unit, a data storage unit, a received light data storage unit, a light information receiving conversion unit, a transmitted light data storage unit, a system data storage unit, a transmitted laser power stabilization control unit, a data input and output unit, a light parameter input and output control unit and a module data regulation and control unit, wherein the power supply is electrically connected with the binary data conversion unit, the data storage unit, the received light data storage unit, the light information receiving conversion unit, the transmitted light data storage unit, the system data storage unit, the transmitted laser power stabilization control unit, the data input and output unit, the light parameter input and output control unit and the module data regulation and control unit through a power line, the module data regulation and control unit is electrically connected with the binary data conversion unit, the data storage unit, the data input and output unit and the light parameter input and output control unit through a data line, the received light data storage unit is electrically connected with the light information receiving conversion unit through a data line, the light information receiving conversion unit is electrically connected with the internal sensor through a sensor wire, the module data regulation and control unit is electrically connected with the binary data conversion unit, the data storage unit, the transmitted light power stabilization control unit, the data input and output control unit and the light parameter input and output control unit are electrically connected with the data input and output through a data line through a high-frequency circuit, the data line and the data storage unit;
the behavior controller comprises a photosensitive sensor array angle and lens adjustment automatic control unit, a photosensitive sensor signal conversion unit, an incident light source parameter calculation unit, a laser power control unit, an optical information parameter input and output and an automatic tracking orientation system parameter compensation control parameter output, wherein the power supply is electrically connected with the photosensitive sensor array angle and lens adjustment automatic control unit, the photosensitive sensor signal conversion unit, the incident light source parameter calculation unit, the laser power control unit, an optical information parameter input and output and an automatic tracking orientation system parameter compensation control parameter output through a power line, the angle control motor and the gear control motor are electrically connected with the photosensitive sensor array angle and the lens adjustment automatic control unit through the power line, the automatic tracking orientation system is electrically connected with the automatic tracking orientation system parameter compensation control parameter output through a data line, the external sensor array is electrically connected with the photosensitive sensor signal conversion unit through a sensor wire, the incident light source parameter calculation unit is electrically connected with the photosensitive sensor array angle and the lens adjustment automatic control unit through the data line, the photosensitive sensor signal conversion unit, the laser power control unit, the optical information parameter input and output and the automatic tracking orientation system parameter compensation control parameter output are electrically connected with the photosensitive sensor signal output through the data line and the data line, and the optical information controller is electrically connected with the photosensitive sensor output and the total power controller electrically.
Preferably, the center positions of the inner sensor array and the outer sensor array are the same, and the outer sensor array is provided with a photosensitive sensor response range interval for automatically adjusting the lens in a ring shape, the photosensitive sensor array position response interval is used for controlling the lens, and when the focusing light spot is not in the interval, the position can be calculated to obtain parameters, so that the lens is controlled to adjust the distance.
Preferably, the light adjusting lens is far away from one side of the photosensitive sensor array to inject light, and the light is focused through the light adjusting lens to collect signals.
Preferably, the laser polarization angle of the laser transmitter is 0-90 degrees.
Preferably, the power amplifying circuit comprises a diode, a triode and a capacitor, the power supply is electrically connected with the diode, the capacitor and the triode in sequence through a power line, the behavior controller is electrically connected with the triode through a data line, and one of the amplifying circuits is used for improving output power.
Preferably, the polarizer is fixedly connected with the inner sensor array, the inner sensor array is tightly and fixedly matched with the polarizer, the inner sensor array and the polarizer rotate simultaneously during rotation, and all sensors of the inner sensor array are required to be regrouped every time the polarizer rotates for one angle, so that the total control calculation amount is large.
Compared with the prior art, the invention has the following beneficial effects:
1. the invention innovatively uses the polarization characteristic of the laser, uses the same spectrum on the equipment, but the lasers with the polarization directions perpendicular to each other can provide more data spectrums, so that the data transmission speed is higher;
2. the invention creatively uses the photosensitive sensor array capable of rotating electrically and the polarizer combination to separate the incident light, so that the signals are clearer;
3. the invention creatively uses the independent behavior controller to control all electric components and laser power, and can finely adjust the incidence angle of the light signal of the dimming lens through the automatic tracking and orientation system, so that the signal receiving and transmitting position is more accurate.
Drawings
FIG. 1 is a main structural diagram of a laser transmitter of the present invention;
FIG. 2 is a schematic diagram of a combination structure of a dimming lens according to the present invention;
FIG. 3 is a schematic diagram of the cooperation of an inner sensor array and a polarizer of the present invention;
FIG. 4 is a schematic diagram of the overall structure of the present invention;
FIG. 5 is a top view of the present invention;
FIG. 6 is a schematic view of the spot offset when the auto-tracking orientation system of the present invention is fine-tuned;
FIG. 7 is a schematic diagram of two opposing devices of the present invention transmitting optical data to each other;
FIG. 8 is a schematic diagram of the structure and connection of the overall controller of the present invention;
FIG. 9 is a schematic diagram of the structure and connection of the behavior controller according to the present invention;
FIG. 10 is a schematic diagram of the structure of the high frequency and power controller according to the present invention
FIG. 11 is a schematic diagram of satellite-facing data transmission according to the present invention;
fig. 12 is a flow chart of the data transmission standard of the present invention.
In the figure: 1-a laser transceiver; 2-a laser emitter; 201-a data laser; 202-positioning an interference compensating laser; 3-a photosensor array; 301-an inner sensor array; 302-an outer sensor array; 303-sensor wires; 304-a polarizer; 305-angle control motor; 4-adjusting the lens outer box; 401-focusing mirror; 402-a tripod; 403-auto-tracking orientation system; 404-dimming lenses; 4041-a dimming lens gear; 405-helical gear; 406-gear control motor; 407-dimming lens fixation rod; 408-angle control motor; 5-power supply; 501-a power line; 6-data lines; 7-ray; 8-a master controller; 801-a binary data conversion unit; an 802-data storage unit; 803-a received optical data storage unit; 804-an optical information receiving conversion unit; 805-a transmit optical data storage unit; 806-a system data storage unit; 807-a lasing power stabilization control unit; 808-data input/output; 809—an optical parameter input/output control unit; 8010-module data regulation and control unit; 9-a behavior controller; 901-an automatic control unit for angle and lens adjustment of a photosensitive sensor array; 902-a photosensitive sensor response range interval of automatic lens adjustment; 903—a photosensor signal conversion unit; 904-an incident light source parameter calculation unit; 905-a laser power control unit; 906-optical information parameter input and output; 907-automatically tracking the directional system parameter compensation control parameter output; 10-high frequency and power controller; 1001-high frequency switch; 1002-a power amplifying circuit; 1003-diode; 1004-triode; 1005-capacitance.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present invention and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
1-12, a remote laser communication device shown in the drawings, which comprises a laser transceiver 1, a sensor wire 303, an adjusting lens outer box 4, a power supply 5, a power line 501, a data line 6, a master controller 8, a behavior controller 9 and a high-frequency and power controller 10, wherein the left side of the laser transceiver 1 is provided with a laser transmitter 2, the right side of the inner cavity of the laser transceiver 1 is provided with a photosensitive sensor array 3, the left side of the photosensitive sensor array 3 is provided with an angle control motor 305, the right outer wall of the laser transceiver 1 is sheathed with the adjusting lens outer box 4, the bottom of the inner cavity of the adjusting lens outer box 4 is provided with a gear control motor 406, the inner cavity of the adjusting lens outer box 4 is provided with a spiral gear 405, the power output end of the gear control motor 406 is provided with a transmission gear matched with the spiral gear 405, a light adjusting lens 404 is arranged between two groups of spiral gears 405, one side of the light adjusting lens 404 far away from the photosensitive sensor array 3 is irradiated with light 7, the light 7 is focused through the lens 404, the light collecting signals, the top and the bottom of the light adjusting lens 404 are both provided with a triangular gear 4041, the two groups of the light adjusting lens 4040 are far from the focusing lens is far from the circumference of a triangular support frame 401, the light adjusting lens 401 is far from the light adjusting lens 401, and the light adjusting lens 401 is far from the end of the automatic focusing lens is far from the reflector 401, and the light adjusting lens 401 is far from the light adjusting lens is far from the light focusing lens 1, and far from the light 1 is far from the light focusing reflector 401, and far from the light 1 is far from the light 1, and far from the light is far from the light and far from the light; the laser transmitter 2 comprises eight groups of data exciters 201 and a group of positioning and interference compensation lasers 202, wherein two groups of data exciters 201 are arranged above, below, left side and right side of the positioning and interference compensation lasers 202 along the axial direction of the positioning and interference compensation lasers 202, and the central point connecting lines of the upper and lower four groups of data exciters 201 are mutually perpendicular to the central point connecting lines of the left and right four groups of data exciters 201; the photosensitive sensor array 3 comprises an inner sensor array 301, an outer sensor array 302 and a polarizer 304, the outer wall of the inner sensor array 301 is sleeved with the outer sensor array 302, the circle center positions of the inner sensor array 301 and the outer sensor array 302 are the same, the outer sensor array 302 is provided with a photosensitive sensor response range interval 902 with an automatically adjusted circular lens, the photosensitive sensor array response range interval is used for controlling the lens, when a focusing light spot is not in the interval, the position can be calculated to obtain parameters, the lens is controlled to adjust the distance, one side of the inner sensor array 301 close to a dimming lens 404 is provided with the polarizer 304, the polarizer 304 is fixedly connected with the inner sensor array 301, the inner sensor array 301 is tightly and fixedly matched with the polarizer 304, and when the inner sensor array 301 and the polarizer 304 rotate simultaneously, and when the polarizer 304 is rotated, all sensors of the inner sensor array 301 are regrouped for each time, the sensors of the inner sensor array 301 are required to be subjected to the regrouping for one angle, so that the total control calculation amount is large; the high-frequency and power controller 10 comprises a high-frequency switch 1001 and a power amplification circuit 1002, the power amplification circuit 1002 comprises a diode 1003, a triode 1004 and a capacitor 1005, the power supply 5 is electrically connected with the diode 1003, the capacitor 1005 and the triode 1004 in sequence through a power line 501, the behavior controller 9 is electrically connected with the triode 1004 through a data line 6, one of the amplification circuits is used for improving output power, the overall controller 8 is electrically connected with the high-frequency switch 1001 through the data line 6, the behavior controller 9 is electrically connected with the power amplification circuit 1002 through the data line 6, and the power amplification circuit 1002 is electrically connected with the data exciter 201 and the power supply 5 through the power line 501; the general controller 8 includes a binary data conversion unit 801, a data storage unit 802, a received light data storage unit 803, a light information reception conversion unit 804, a transmitted light data storage unit 805, a system data storage unit 806, a transmitted laser power stabilization control unit 807, a data input/output 808, a light parameter input/output control unit 809, and a module data regulation unit 8010, the power supply 5 is electrically connected to the binary data conversion unit 801, the data storage unit 802, the received light data storage unit 803, the light information reception conversion unit 804, the transmitted light data storage unit 805, the system data storage unit 806, the transmitted laser power stabilization control unit 807, the data input/output 808, the light parameter input/output control unit 809, and the module data regulation unit 8010 via a data line 6 and the binary data conversion unit 801, the data storage unit 806, the transmitted laser power stabilization control unit 807, the data input/output 808, and the light parameter input/output control unit 809 via a power line 501, the binary data conversion unit 801 is electrically connected to the data input/output 808 via a data line 6, the received light storage unit 803 is electrically connected to the data input/output 808 via a data line 6 and the data storage unit 803 via a high-power conversion circuit 803, the module data regulation unit 8010 is electrically connected to the received light power storage unit 803 via a high-power conversion unit 803 via a high-frequency sensor circuit control unit 805, the data amplification unit 803 via a data input/power conversion unit 805, the data storage unit 301 is electrically connected to the data storage unit 301 via a high-frequency sensor circuit control circuit 303, the optical parameter input/output control unit 809 is electrically connected with the behavior controller 9 through a data line 6; the behavior controller 9 comprises a photosensitive sensor array angle and lens adjustment automatic control unit 901, a photosensitive sensor signal conversion unit 903, an incident light source parameter calculation unit 904, a laser power control unit 905, a light information parameter input and output 906 and an automatic tracking orientation system parameter compensation control parameter output 907, wherein the power supply 5 is electrically connected with the photosensitive sensor array angle and lens adjustment automatic control unit 901, the photosensitive sensor signal conversion unit 903, the incident light source parameter calculation unit 904, the laser power control unit 905, the light information parameter input and output 906 and the automatic tracking orientation system parameter compensation control parameter output 907 through a power line 501, the angle control motor 305 and the gear control motor 406 are electrically connected with the photosensitive sensor array angle and lens adjustment automatic control unit 901 through the power line 501, the automatic tracking orientation system 403 is electrically connected with the automatic tracking orientation system parameter compensation control parameter output 907 through a data line 6, the external sensor array 302 is electrically connected with the photosensitive sensor signal conversion unit 903 through a sensor wire 303, the incident light source parameter calculation unit 904 is electrically connected with the photosensitive sensor array angle and lens adjustment automatic control unit 901, the photosensitive sensor signal conversion unit 903, the light power control unit 905, the light power compensation parameter input and output 907 through a data line 6, and the automatic tracking orientation system parameter output 907 is electrically connected with the laser power controller 8 through the data line 6, and the total power control parameter input and the data line 906 is electrically connected with the automatic tracking orientation system 403 through the data line 6 and the data line 6. Wherein, each part functions as follows:
201-data laser: a laser for transmitting a data optical signal may be configured with a plurality of lasers of the same spectrum but different polarization angles depending on the polarization direction, and a reference of a greater number of bits may be generated.
202-positioning, interference compensating laser: the power of the laser is constant, so that when there is an atmospheric disturbance that causes the optical power generated by the laser to drop, the external sensor array 302 sends the parameters to the behavior controller 9, and the power drop ratio is calculated to strengthen the emission power of the data laser, so that the data transmission is more stable.
3-photosensor array: is a plurality of photosensitive sensors corresponding to different spectrums, and the response spectrum is the same as the spectrum of the laser emitter.
301-inner sensor array: the data laser is used for receiving the data laser, and can rotate the angle along with motor control.
302-external sensor array: for receiving light from the positioning, disturbance compensating laser 202 and using this data to adjust the alignment of the transceiver, the rotation angle of the inner sensor and the power of the laser transmitter are fixed and do not rotate.
303-sensor wire: micro-current conduction for all sensors.
304-polarizer: the light is selectively transmitted by adjusting the angle of the light source with the transmitting end by being attached to the inner sensor of the photosensitive sensor array 3, so that the laser can transmit optical signals by using the lasers with identical spectrums and mutually perpendicular polarization angles.
305-angle control motor: for adjusting the angle of the inner sensor so that the phase angle of the incident light of the two sets of photosensitive sensors is always the same as the phase angle of the received light.
401-focusing mirror: for collecting the far-reaching light rays 7.
402-tripod: for fixing the laser transceiver 1.
403-auto-tracking orientation system: the tracking equipment of ground satellite communication antenna and radio astronomical telescope uses the same principle, including satellite orbit calculation unit or sky-patrol orbit calculation unit, motor controller, driving motor or hydraulic pump and hydraulic cylinder. The function is to make the equipment always align to the required accurate position or to patrol the sky along the track at a certain speed by the set track parameters and the correction after communication connection, and a parameter input is performed here to ensure more accurate alignment, which also belongs to the prior art.
404-dimming lens: for adjusting the angle of the incident light such that the focused beam of the focusing mirror 401 is substantially parallel when entering the photosensor array 3, preventing high thermal damage to the sensor when focusing on a small spot.
4041-dimming lens gear: for cooperating with a helical gear 405 to allow for repeated movement of the dimmer lens 404.
405-helical gear: the dimming lens 404 can be moved up and down by a circumferential rotation to adjust the light beam.
406-gear and (3) controlling a motor: the rotation of the helical gear 405 is controlled by the rotation.
407-dimming lens fixation rod: for preventing the dimming lens 404 from rotating with the helical gear 405.
408-angle control motor: the device is used for adjusting the horizontal angle of the photosensitive sensor array 3 and guaranteeing the same polarization angle with the laser of the transmitting end.
5-power: similar to a computer power supply, single input, multi-channel output.
501-power line: the power supply is used for current connection of the power supply and each part of the device.
6-data line: data or control current transmission for the device.
7-ray: simulating a laser transmission line.
8-overall controller: and a data aggregate controller.
801-binary data conversion unit: and the data conversion unit is the same as the related patent.
802-data storage unit: a unit for storing all the input data may be stored in the received optical data storage unit 803 and the transmitted optical data storage unit 805 when the data amount is excessive, and the storage efficiency of data may be increased, increasing the utilization of the memory.
803-received optical data storage unit: and a unit for storing the received optical data.
804-optical information receiving conversion unit: for receiving the electrical signal of the photosensitive sensor and converting it into binary data.
805-transmit optical data storage unit: the optical control signal data storage device is used for storing the optical control signal data to be transmitted, and the data storage device is used for storing the data to be fetched when retransmitting the data in the corresponding unit time during error correction, as in the optical fiber patent.
806-system data storage unit: the system data storage device is used for storing system data, and comprises original parameters of each component, a system running program and control data added after input.
807-emitted laser power stabilization control unit: for power control of the laser light emitted by the positioning, interference compensating laser 202. The light spot of the laser can be enlarged or reduced according to the distance, stronger laser power is not needed in short-distance optical communication, and stronger laser power is needed in long distance, so that different positioning and interference compensation laser power can be emitted according to different distances, and a more stable signal transmission effect can be achieved.
808-data input/output: and inputting and outputting external data.
809—optical parameter input-output control unit: the communication of the light parameters with the behavior controller 9 facilitates the emission and calculation of the light.
8010-module data conditioning unit: the method is used for controlling the calling, transmission and modification of all data information and control information.
9-behavior controller: all controls for controlling the device with respect to the motor and the power.
901-automatic control unit for angle and lens adjustment of photosensitive sensor array: the angle control motor 305 and the gear control motor 406 are controlled according to the parameters.
902—photo sensor response range interval for lens auto-adjustment: the position response interval of the photosensitive sensor array 3 for controlling the lens can be calculated through position calculation to obtain parameters when the focusing light spot is not in the interval, so as to control the dimming lens 404 to adjust the distance.
903-photosensor signal conversion unit: for converting the statistical basic light signal and passing the converted binary data to an incident light source parameter calculation unit 904.
904-incident light source parameter calculation unit: all parameters used to calculate the incident light, such as polarization angle, power, relative position of the light source, relative angular velocity, distance, relative power attenuation (including atmospheric absorption and occlusion), etc.
905-laser power control unit: the power of the transmitting laser is increased or decreased according to the relative power attenuation given by the incident light source parameter calculation unit 904, so as to ensure the laser power to be stable when the receiving party receives the laser.
906-optical information parameter input/output: for data exchange with the overall controller 8.
907-auto-tracking directional system parameter compensation control parameter output: by performing an offset calculation on the incident light spots, the micro-control data is transmitted to the auto-tracking orientation system 403 to achieve a more precise mutual alignment during the course of the night track.
10-high frequency and power controller: for controlling the emission frequency of the laser.
1001-high frequency switch: a control switch for high-frequency opening and closing.
1002-power amplification circuit: is a general structure and belongs to the prior art.
1003-diode: preventing current backflow.
1004-triode: for controlling the capacitive current.
1005-capacitance: for storing more current to achieve a fast power supply when higher power is required.
One specific application of this embodiment is that, during use, the present invention is as follows: embodiment one, debug
A pair of antennas communicate with each other in data, and the relative positions of each other are laser-transmitted using a positioning and interference compensating laser 202 under the existing parameters. When both sides receive the laser beam of the other side, the behavior controller 9 performs parameter calculation according to the light information received by the external sensor array 302, and sends a fine adjustment control signal to the automatic tracking and orientation system 403 to perform fine adjustment on the device. When data transmission is performed to a satellite as in fig. 11, the laser light spot is dispersed to some extent due to the long distance. And because the satellite has high running speed, very small precision can cause great deviation in debugging and normal use. It is therefore necessary to control all the motorized components using one single behavioural controller 9. The photosensitive sensor signal conversion unit 903 of the behavior controller 9 converts the optical signal into binary data and transmits the binary data to the incident light source parameter calculation unit 904 for calculation to obtain a series of optical data parameters, and the corresponding parameters are sent to the laser power control unit 905 for controlling the laser power, the angle of the photosensitive sensor array and the distance of the lens adjustment automatic control unit 901 for controlling the angle of the inner sensor array 301 and the dimming lens 404 to make the spot size right, and the automatic tracking and orientation system parameter compensation control parameter output 907 for fine tuning the automatic tracking and orientation system 403. Meanwhile, the optical parameter input/output control unit 809 performs optical parameter communication to compare the parameters of the data laser 201, so that the communication is completed for the first debugging.
Second embodiment, data Transmission
When the first debugging is completed, the data transmission and debugging can be performed. Here, the data laser 201 starts to be debugged by sorting the mutual laser parameters. After transmitting several debug lights to each other, the operation state of the data laser 201 can be determined and then data transmission is performed. The transmission principle is based on an electromagnetic wave analog digital high-system transmission system and a transmission method thereof disclosed in chinese patent publication No. CN201510958059.6, but the control principle is based on a high-frequency switch 1001. The overall controller 8 controls the high frequency switch 1001 to realize high frequency on-off of the laser, so that the data laser 201 flashes rapidly, thereby transmitting data. After using the principle of polarized light, two sets of lasers of exactly the same spectrum and corresponding photosensors can be used. By means of the mutually perpendicular polarized lenses 304, the sensors on the inner sensor array 301 can receive laser light with different polarization angles without interference. And after the data transmission is completed for several times, the secondary debugging is completed, and the data is formally transmitted.
Embodiment III, error correction
During laser data transmission, atmospheric interference or shielding by other objects occurs, so that the power of an optical signal is reduced. By comparing the power parameters of the interference compensation lasers 202 with each other, the interference degree can be obtained, and the power of the data laser 201 can be correspondingly adjusted. The data laser 201 is power amplified by the power amplification circuit 1002 so that the data signal strength is kept stable at the time of reception. When the power of the positioning, disturbance compensating laser 202 is reduced to a certain level, the data transmission can be stopped. While the behavior controller 9 counts all the incident laser light through the outer sensor array 302. To count the number of shots of laser 201. When the number of data laser emission signals is different in a unit time set in the transmission protocol, it means that there is an error in data transmission in this unit time, and therefore, an error code of the number of optical signals is sent to the overall controller 8. The master controller 8 also counts the data optical signals by the internal sensor array 301, and if there is an error in both counts, the error represents the data transmission error, and the master controller 8 sends the retransmission data code to the other party according to the pre-stored system data. Upon receiving the code, the counterpart master controller 8 will call the data within this unit time from the inside of the transmission light data storage unit 805 to retransmit.
Fourth embodiment, resend data
After the retransmitted data is sent, the data can be re-programmed into a data queue, and converted into external data by the binary data conversion unit 801, and output by the data input/output 808. The input flow is that the data is input by the data input/output 808, then enters the binary data conversion unit 801 to be converted into analog high-level data, and then is stored in the transmitting optical data storage unit 805 to wait for transmission. The transmission optical data storage unit 805 performs data laser control by controlling the high frequency and power controller 10. The data laser 201, which is controlled in power by the behavior controller 9, performs data transmission. Since there is a possibility of an error in the data signal, the data stored in the transmission optical data storage unit 805 is stored for a certain time again to ensure that transmission is possible when retransmission is required.
In the description of the present specification, the descriptions of the terms "one embodiment," "example," "specific example," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the invention disclosed above are intended only to assist in the explanation of the invention. The preferred embodiments are not exhaustive or to limit the invention to the precise form disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best understand and utilize the invention. The invention is limited only by the claims and the full scope and equivalents thereof.
Claims (6)
1. The utility model provides a long-distance laser communication device, includes laser transceiver (1), sensor wire (303), adjusts lens outer box (4), power (5), power cord (501), data line (6), master controller (8), behavior controller (9) and high frequency and power controller (10), its characterized in that: the left side of laser transceiver (1) is provided with laser emitter (2), the inner chamber right side of laser transceiver (1) is provided with photosensitive sensor array (3), the left side of photosensitive sensor array (3) is provided with angle control motor (305), adjust lens outer box (4) have been cup jointed to the right side outer wall of laser transceiver (1), the inner chamber bottom of adjust lens outer box (4) is provided with gear control motor (406), the inner chamber of adjust lens outer box (4) is provided with helical gear (405), and the power take off end of gear control motor (406) be provided with helical gear (405) matched with drive gear, two sets of be provided with between helical gear (405) and adjust luminance lens (404), the top and the bottom of adjusting luminance lens (404) all are provided with adjust luminance lens gear (4041), two sets of adjust luminance lens gear (4041) have all cup jointed lens dead lever (407), the circumference outer wall of laser transceiver (1) is provided with triangle support frame (402), triangle support frame (402) keep away from transceiver (1) and focus mirror (401) one end of adjusting luminance (401) and focusing mirror (401) are pressed close to, an automatic tracking and orienting system (403) is arranged at the top of one end of the focusing reflector (401) far away from the triangular support frame (402);
the laser transmitter (2) comprises eight groups of data exciters (201) and a group of positioning and interference compensation lasers (202), wherein two groups of data exciters (201) are distributed above, below, left and right sides of the positioning and interference compensation lasers (202) along the axial direction of the positioning and interference compensation lasers (202), and the central point connecting lines of the four groups of data exciters (201) above and below are mutually perpendicular to the central point connecting lines of the four groups of data exciters (201) on the left and right sides;
the photosensitive sensor array (3) comprises an inner sensor array (301), an outer sensor array (302) and a polarizer (304), wherein the outer sensor array (302) is sleeved on the outer wall of the inner sensor array (301), and the polarizer (304) is arranged on one side, close to the dimming lens (404), of the inner sensor array (301);
the high-frequency and power controller (10) comprises a high-frequency switch (1001) and a power amplification circuit (1002), the overall controller (8) is electrically connected with the high-frequency switch (1001) through a data line (6), the behavior controller (9) is electrically connected with the power amplification circuit (1002) through the data line (6), and the power amplification circuit (1002) is electrically connected with the data exciter (201) and the power supply (5) through a power line (501);
the general controller (8) comprises a binary data conversion unit (801), a data storage unit (802), a received light data storage unit (803), an optical information receiving conversion unit (804), a transmitted light data storage unit (805), a system data storage unit (806), a transmitted laser power stabilizing control unit (807), a data input and output (808), an optical parameter input and output control unit (809) and a module data regulating unit (8010), wherein the power supply (5) is connected with the binary data conversion unit (801), the data storage unit (802), the received light data storage unit (803), the optical information receiving conversion unit (804), the transmitted light data storage unit (805), the system data storage unit (806), the transmitted laser power stabilizing control unit (807), the data input and output (808), the optical parameter input and output control unit (809) and the module data regulating unit (8010) through a data wire (6), and the module data regulating unit (8010) is connected with the binary data conversion unit (801), the data storage unit (802), the received light data storage unit (803), the transmitted light data storage unit (805), the system data storage unit (806), the transmitted light storage unit (805), the transmitted light data storage unit (807), the transmitted laser power stabilizing unit (807) and the module data regulating unit (8010) through a data wire, the optical power control system comprises a data input/output (808) and an optical parameter input/output control unit (809), wherein the binary data conversion unit (801) is electrically connected with the data input/output (808) through a data line (6), the received optical data storage unit (803) is electrically connected with the optical information receiving conversion unit (804) through the data line (6), the optical information receiving conversion unit (804) is electrically connected with the inner sensor array (301) through a sensor wire (303), the transmitted optical data storage unit (805) is electrically connected with the high-frequency and power controller (10) through the data line (6), the transmitted laser power stabilization control unit (807) is electrically connected with the power amplifying circuit (1002) through the data line (6), and the optical parameter input/output control unit (809) is electrically connected with the behavior controller (9) through the data line (6);
the behavior controller (9) comprises a photosensitive sensor array angle and lens adjustment automatic control unit (901), a photosensitive sensor signal conversion unit (903), an incident light source parameter calculation unit (904), a laser power control unit (905), an optical information parameter input output (906) and an automatic tracking orientation system parameter compensation control parameter output (907), the power supply (5) is electrically connected with the photosensitive sensor array angle and lens adjustment automatic control unit (901), the photosensitive sensor signal conversion unit (903), the incident light source parameter calculation unit (904), the laser power control unit (905), the optical information parameter input output (906) and the automatic tracking orientation system parameter compensation control parameter output (907) through a power line (501), the angle control motor (305) and the gear control motor (406) are electrically connected with the photosensitive sensor array angle and lens adjustment automatic control unit (901) through a power line (501), the automatic tracking orientation system (403) is electrically connected with the automatic tracking orientation system parameter compensation control parameter output (907) through a data line (6), the external sensor (302) is electrically connected with the photosensitive sensor signal conversion unit (303) through a data line (903), the incident light source parameter calculation unit (904) is electrically connected with the photosensitive sensor array angle and lens adjustment automatic control unit (901), the photosensitive sensor signal conversion unit (903), the laser power control unit (905), the optical information parameter input and output (906) and the automatic tracking orientation system parameter compensation control parameter output (907) through the data line (6), the laser power control unit (905) is electrically connected with the photosensitive sensor signal conversion unit (903) and the high-frequency and power controller (10) through the data line (6), and the optical information parameter input and output (906) is electrically connected with the main controller (8) through the data line (6).
2. A remote laser communication device as claimed in claim 1, wherein: the circle center positions of the inner sensor array (301) and the outer sensor array (302) are the same, and a photosensitive sensor response range interval (902) with automatically adjusted circular lenses is arranged on the outer sensor array (302).
3. A remote laser communication device as claimed in claim 1, wherein: the dimming lens (404) is far away from one side of the photosensitive sensor array (3) and is used for injecting light rays (7).
4. A remote laser communication device as claimed in claim 1, wherein: the laser polarization angle of the laser emitter (2) is 0-90 degrees.
5. A remote laser communication device as claimed in claim 1, wherein: the power amplification circuit (1002) comprises a diode (1003), a triode (1004) and a capacitor (1005), the power supply (5) is electrically connected with the diode (1003), the capacitor (1005) and the triode (1004) in sequence through a power line (501), and the behavior controller (9) is electrically connected with the triode (1004) through a data line (6).
6. A remote laser communication device as claimed in claim 1, wherein: the polarizer (304) is fixedly connected with the inner sensor array (301).
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| CN113645269B (en) * | 2021-06-29 | 2022-06-07 | 北京金茂绿建科技有限公司 | Millimeter wave sensor data transmission method and device, electronic equipment and storage medium |
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