CN105305083A - Automatic satellite-aligning method for vehicle-mounted static-satellite-communication antenna - Google Patents
Automatic satellite-aligning method for vehicle-mounted static-satellite-communication antenna Download PDFInfo
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- CN105305083A CN105305083A CN201510758894.5A CN201510758894A CN105305083A CN 105305083 A CN105305083 A CN 105305083A CN 201510758894 A CN201510758894 A CN 201510758894A CN 105305083 A CN105305083 A CN 105305083A
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Abstract
The invention provides an automatic satellite-aligning method for a vehicle-mounted static-satellite-communication antenna. The automatic satellite-aligning function of the vehicle-mounted static-satellite-communication antenna is realized through a mechanical design and a software algorithm in the method. The automatic satellite-aligning method is realized by the steps of calculating an antennal position, an angle of deviation of a pitching according to longitude and communication frequency of a target satellite (a geosynchronous earth orbit satellite), and the feedback signals from a vehicle body posture sensor, GPS position finder, a beacon receiver and a rotary table angle sensor carried by the vehicle, and then finishing the automatic satellite alignment by the antenna carried by a vehicle-mounted two-degree-of-freedom rotary table. According to the automatic satellite-aligning method, the rapid target satellite alignment in any site by a vehicle-mounted static-satellite-communication system is realized; and the requirements of rapidness and accuracy of the existing vehicle-mounted static-satellite-communication system can be satisfied.
Description
Technical field
The present invention relates to vehicle-mounted quiet in exceedingly high line automatic to star method, the method be mainly used in static in car antenna to aim at the mark satellite, solve the difficult point of vehicle-mounted quiet middle way system anywhere, optional position rapid alignment satellite again.
Background technology
Along with the arrival of information-intensive society, take computer and network technologies as the development of the modern technologies of core, originally more profoundly changing our life style.The sharpest edges of satellite communication utilize limited satellite resource, can connect multiple communication node and communicate.Mobile-satellite receives the antenna used and is divided into two kinds: " Jing Zhongtong " and " communication in moving ", " Jing Zhongtong " refers to satellite antenna and be easy to carry, and completes fast star after moving to base, carries out the reception of satellite-signal.Logical in quiet is the reasonable a kind of mode of sexual valence in mobile reception." communication in moving " refers to antenna carriers such as carrying car and follows the tracks of all the time in moving process satelloid, carries out satellite signal receiving, and must use expensive gyroscope and dynamic tracking equipment, cost performance is lower.
The difficult point of vehicle-mounted quiet middle way system is how to realize car antenna automatic to star.Existing quiet in exceedingly high line certain shortcoming is all existed to star method, the rapidity to star and accuracy cannot be taken into account simultaneously, under some specific environment, need artificial participation to search star process, reduce quiet in the service efficiency of exceedingly high line, need one badly and automatically search star method fast and accurately and deal with problems.
Summary of the invention
The technical problem to be solved in the present invention be to provide a kind of vehicle-mounted quiet in exceedingly high line automatic to star method.
Of the present invention vehicle-mounted quiet in the automatic of exceedingly high line star method is characterized in, comprise the steps:
A, a year car keep geo-stationary after moving to optional position, start automatically to star streaming journey, the antenna auto-alignment target satellite that two-degree-freedom turntable carries;
B, by carry in car carry vehicle body attitude transducer, GPS position indicator, Radio Beacon, turntable angular transducer feedback signal, complete the conversion of optional position lower body coordinate system and earth coordinates
C, the target satellite longitude, the communication frequency that are set by host computer, calculate orientation, the elevating movement track of two-degree-freedom turntable, and the antenna that two-degree-freedom turntable carries moves to target location;
Behind d, arrival target location, after the intensity of Radio Beacon feedback signal reaches requirement, two-degree-freedom turntable stop motion, completes preliminary to star process; If Radio Beacon feedback signal is less than set-point, then car antenna starts automatic scan centered by target location, until complete preliminary to star process.
E, tentatively star is terminated to aft antenna by Step d stop position centered by, carry out the scanning of class cross hairs, complete after the end of scan automatically star process.
The automatic scan process of car antenna described in steps d centered by target location is: centered by target location, carries out the helical scanning that maximum radius is 15o, if find target satellite signal in scanning, then stop motion, completes preliminary to star streaming journey.
The present invention propose a kind of vehicle-mounted quiet in exceedingly high line automatic to star method, carried the hardware designs of antenna and multisensor by dimensional turntable, and reasonably software algorithm support, realize antenna fast automatic to star.Two-degree-freedom turntable in the present invention carries 14 absolute encoders, high accuracy car body attitude transducer and GPS position indicator, antenna-point accuracy reaches 0.2 °, solve year car automatic to star problem fast and accurately at an arbitrary position, this comparatively wide to the star method scope of application, possess stronger practicality.
Accompanying drawing explanation
Fig. 1 is that vehicle-mounted quiet middle way system of the present invention is automatically to star part composition frame chart;
Fig. 2 is the automatic to star method flow diagram of exceedingly high line in vehicle-mounted quiet in the present invention.
Embodiment
Embodiment 1
The present invention propose a kind of vehicle-mounted quiet in exceedingly high line automatic to star method, carry car and carry vehicle body attitude transducer, GPS position indicator, Radio Beacon, revolving table position transducer, by the feedback signal of each transducer, complete the conversion of optional position lower body coordinate system and earth coordinates, and antenna is moved to target location; Arrive after assigned address, search satellite if fail or satellite-signal is less than set-point, then centered by target location, carry out automatic scan flow process according to control algolithm, know and automatically star process is terminated.
Of the present invention vehicle-mounted quiet in exceedingly high line automatic to star method, mainly comprise the steps:
A, a year car stop after moving to optional position, start automatically star streaming journey;
B, by carry in car carry vehicle body attitude transducer, GPS position indicator, Radio Beacon, turntable angular transducer feedback signal, complete the conversion of optional position lower body coordinate system and earth coordinates;
C, host computer send target satellite longitude, communication frequency to controller, and controller calculates the movement locus of two-degree-freedom turntable, and two-degree-freedom turntable carries antenna and moves to target location;
D, to arrive behind target location, judge whether to search according to Radio Beacon feedback signal, if search satellite, then the orientation frame of two-degree-freedom turntable, the stop motion of pitching frame, complete preliminary to star process; Search satellite if fail, then two-degree-freedom turntable lift-launch antenna starts automatic scan centered by target location, until complete preliminary to star process.
E, tentatively star is terminated to aft antenna by Step d stop position centered by, carry out the scanning of class cross hairs, complete after the end of scan automatically star process.
The automatic scan process of car antenna described in steps d centered by target location is: centered by target location, carries out the helical scanning that maximum radius is 15o, if find target satellite signal in scanning, then stop motion, completes preliminary to star streaming journey.
See Fig. 1, describe in detail vehicle-mounted quiet in exceedingly high line automatic as follows to star job step:
After system electrification, initialization (step 401) is carried out to operation setting, after initialization completes, autodiagnosis (step 402) is carried out to system, judge whether to there is fault (step 403).If there is fault, then alarm export fault message (step 404) on the liquid crystal display screen of control cabinet, if there is no fault, then select mode of operation to enter automatically star streaming journey by operating personnel by control cabinet.
By the order of control cabinet transmitting antenna Automatic-expanding, car antenna enters the Automatic-expanding stage (step 4051) by collecting state, in antenna expansion process, host computer to control cabinet send target satellite longitude, to star frequency (step 4052), control cabinet is according to carrying a car attitude angle, sensing, the azimuth of target of longitude calculating antenna of longitude and latitude and target satellite and the angle of pitch (step 4053).
After antenna is deployed into position, according to antenna azimuth of target and the angle of pitch, antenna carries out moving (step 406) directly to target location.Feedback signal (i.e. the communication signal strength of target satellite) according to Radio Beacon in running judges whether satelloid (step 407), and when the feedback signal of Radio Beacon is greater than set-point, antenna stop motion, tentatively completes (step 408) star.If fail the signal of target acquisition satellite, then antenna continues to move to target location (step 409).After arriving target location, antenna is centered by target location, 15 ° are carried out helical scanning (step 410) for radius, judge whether satelloid (step 411) according to the feedback signal of Radio Beacon in scanning process, in scanning process when the feedback signal of Radio Beacon is greater than set-point, antenna stop motion, tentatively completes (step 408) star.If fail the signal of target acquisition satellite during the end of scan, then think automatically to star failure, current action end (step 412).
After tentatively completing (step 408) to star, antenna, centered by this position, carries out class cross hairs scanning process (step 413).Keep antenna pitching direction geo-stationary, orientation moves right 10 ° again after left movement 5 °, aerial position when running record Radio Beacon signal is maximum, and after azimuth scan terminates, move to this position (step 414), centered by step 414 end position, keep the geo-stationary in antenna bearingt direction, pitching runs 10 ° downwards after upwards running 5 ° again, aerial position when running record Radio Beacon signal is maximum, and after the pitching end of scan, move to this position (step 415).Thinking now terminates star process automatically, to star success (step 416).
In the present invention, vehicle-mounted quiet in exceedingly high line automatic as described below to helical scanning in star process: after tentatively (step 408) being completed to star, be coordinate center with current location, line sweep of spinning.Specifically to turntable orientation, elevating movement path is shown below:
X=R*t*sin（w*t）
Y=R*t*cos（w*t）
T represents the control cycle of servo system, and R represents that the radius of helical scanning is advanced the speed, and w represents the angular speed of helical scanning.
The signal function scope of target satellite can be considered as circle territory, and comparatively strong close to the satellite-signal of home position in circle territory, the satellite-signal away from the center of circle is more weak.When behind helical scan path target approach satellite circle position, territory, Radio Beacon can feed back current location satellite-signal, and after satellite-signal intensity is enough large, two-degree-freedom turntable is out of service, and system tentatively completes star, and antenna terminates helical scanning process.
In the present invention, vehicle-mounted quiet in exceedingly high line automatic as described below to class cross hairs scanning process in star process: carry out centered by the preliminary position that star is completed, keep pitching geo-stationary, orientation moves to center respectively and moves left and right ± and 5 °, record the position that satellite-signal is maximum in running, and after the end of scan, move to this position.Centered by azimuth scan end position, keep orientation geo-stationary, pitching is respectively to ° two positions, upper and lower motion ± 5, the position that satellite-signal is maximum is recorded in running, after end to be scanned, two-degree-freedom turntable carries antenna and moves to this position, antenna alignment satellite, terminates star process automatically.
Claims (2)
1. vehicle-mounted quiet in the automatic of exceedingly high line a star method be is characterized in that, comprise the steps:
A. carry after car moves to optional position and keep geo-stationary, start automatically to star streaming journey, the antenna auto-alignment target satellite that two-degree-freedom turntable carries;
B. by carry in car carry vehicle body attitude transducer, GPS position indicator, Radio Beacon, turntable angular transducer feedback signal, complete the conversion of optional position lower body coordinate system and earth coordinates;
C. by target satellite longitude, communication frequency that host computer sets, calculate orientation, the elevating movement track of two-degree-freedom turntable, the antenna that two-degree-freedom turntable carries moves to target location;
D., after arriving target location, after the intensity of Radio Beacon feedback signal reaches requirement, two-degree-freedom turntable stop motion, completes preliminary to star process; If Radio Beacon feedback signal is less than set-point, then car antenna starts automatic scan centered by target location, until complete preliminary to star process;
E. centered by the stop position tentatively star being terminated to aft antenna by Step d, carry out the scanning of class cross hairs, complete after the end of scan automatically star process.
2. according to claim 1 vehicle-mounted quiet in exceedingly high line automatic to star method, it is characterized in that, the automatic scan process of car antenna described in steps d centered by target location is: centered by target location, carry out the helical scanning that maximum radius is 15o, if find target satellite signal in scanning, then stop motion, completes preliminary to star streaming journey.
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| CN201510758894.5A CN105305083A (en) | 2015-11-10 | 2015-11-10 | Automatic satellite-aligning method for vehicle-mounted static-satellite-communication antenna |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108493610A (en) * | 2018-03-16 | 2018-09-04 | 航天恒星科技有限公司 | A kind of phased array antenna is automatically to star method and device |
| CN109428147A (en) * | 2017-08-24 | 2019-03-05 | 北京爱科迪通信技术股份有限公司 | It is a kind of it is vehicle-mounted it is quiet in exceedingly high line collecting method |
| CN109582045A (en) * | 2019-01-08 | 2019-04-05 | 北京慧清科技有限公司 | The Initial Alignment Method of antenna when a kind of carrier inclined |
| CN109639337A (en) * | 2018-11-23 | 2019-04-16 | 南京控维通信科技有限公司 | Graphical auxiliary suitable for satellite communication equipment is to star method |
| CN109742542A (en) * | 2019-01-08 | 2019-05-10 | 北京慧清科技有限公司 | It is a kind of it is quiet in lead to narrow beam antenna fast automatic alignment methods |
| CN111224240A (en) * | 2020-01-13 | 2020-06-02 | 深圳市星网荣耀科技有限公司 | Satellite antenna automatic satellite alignment method capable of achieving rapid convergence |
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| CN202004153U (en) * | 2011-03-23 | 2011-10-05 | 中南林业科技大学 | Rate-gyro-based directional antenna control system |
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| CN202004153U (en) * | 2011-03-23 | 2011-10-05 | 中南林业科技大学 | Rate-gyro-based directional antenna control system |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109428147A (en) * | 2017-08-24 | 2019-03-05 | 北京爱科迪通信技术股份有限公司 | It is a kind of it is vehicle-mounted it is quiet in exceedingly high line collecting method |
| CN109428147B (en) * | 2017-08-24 | 2023-06-02 | 北京爱科迪通信技术股份有限公司 | Vehicle-mounted medium-voltage antenna collection method |
| CN108493610A (en) * | 2018-03-16 | 2018-09-04 | 航天恒星科技有限公司 | A kind of phased array antenna is automatically to star method and device |
| CN108493610B (en) * | 2018-03-16 | 2021-08-17 | 航天恒星科技有限公司 | Automatic satellite alignment method and device for phased array antenna |
| CN109639337A (en) * | 2018-11-23 | 2019-04-16 | 南京控维通信科技有限公司 | Graphical auxiliary suitable for satellite communication equipment is to star method |
| CN109582045A (en) * | 2019-01-08 | 2019-04-05 | 北京慧清科技有限公司 | The Initial Alignment Method of antenna when a kind of carrier inclined |
| CN109742542A (en) * | 2019-01-08 | 2019-05-10 | 北京慧清科技有限公司 | It is a kind of it is quiet in lead to narrow beam antenna fast automatic alignment methods |
| CN109742542B (en) * | 2019-01-08 | 2020-11-17 | 北京慧清科技有限公司 | Rapid automatic alignment method for narrow beam antenna with static intermediate pass |
| CN109582045B (en) * | 2019-01-08 | 2022-07-01 | 北京慧清科技有限公司 | Initial alignment method of antenna when carrier is inclined |
| CN111224240A (en) * | 2020-01-13 | 2020-06-02 | 深圳市星网荣耀科技有限公司 | Satellite antenna automatic satellite alignment method capable of achieving rapid convergence |
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