CN2884281Y - Autotracking system for vehicle satellite TV set - Google Patents
Autotracking system for vehicle satellite TV set Download PDFInfo
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- CN2884281Y CN2884281Y CN 200620000857 CN200620000857U CN2884281Y CN 2884281 Y CN2884281 Y CN 2884281Y CN 200620000857 CN200620000857 CN 200620000857 CN 200620000857 U CN200620000857 U CN 200620000857U CN 2884281 Y CN2884281 Y CN 2884281Y
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Abstract
The utility model discloses a car-borne satellite TV auto-tracking system, comprising a receiving antenna, a feed source, an antenna base, a high frequency combination, a stabilizing system sensor, a tracking receiver, an antenna controller and a drive motor. The receiving antenna and feed source is used to receive satellite down-going signal and send this signal to the high frequency combination; the high frequency combination performs low noise amplification of this signal, converts it into a medium frequency signal, and sends it directly to the tracking receiver and the antenna controller via a medium frequency slip ring or cable. The tracking receiver amplifies, transforms and processes the medium frequency angle error signal from the high frequency combination, detects the error voltage from the medium frequency error signal from noise pollution and sends it to the antenna controller; said error voltage or the angle error signal produced by the electronic tilt-meter is amplified and corrected by the antenna controller to control the operation of said drive motor, and drive the receiving antenna to point to and track the target. Compared to the prior art, the utility model is characterized by short capture time, high search precision, high safety and quick response.
Description
Technical field
The utility model relates generally to a kind of satellite television tracker, or rather, relates to a kind of vehicle-mounted satellite television autotracking system.
Background technology
Traditionally, the modes of playing video disc and video recording that adopt are come service group more on the mobile vehicles such as automobile, train, steamer and aircraft, and the improvement of technology makes people also improve the requirement of amusement thereupon, and satellite television can provide abundanter real-time content.This just needs a kind of equipment that can receive satellite TV signal on mobile vehicle.Existing mobile-satellite TV receiving system is used on the stable vehicle of some road conditions, but when running into the road surface of blocking, crossing culvert or extremely jolt, tend to lose tracking target, therefore, need a kind of satellite television tracker, when target disappears or departs from, can search for and recapture and catch target.
The utility model content
In order to address the above problem, the utility model provides a kind of vehicle-mounted satellite autotracking system, it can search for and catch target automatically, and in autotracking system operational process with certain tracking accuracy Continuous Tracking target, target is near the center line of main beam all the time, thereby with the continuous reliably receiving satellite signal of maximum receiving gain.When fortuitous event (as blocking, cross culvert etc.) occurring, target disappears or when departing from, antenna autotracking system can be in the scope of big spatial domain the line trace of going forward side by side of code acquisition target, recapture the tram.
The technical solution adopted in the utility model is: a kind of vehicle-mounted satellite television autotracking system, comprise receiving antenna, feed, antenna pedestal, the high frequency combination, the systems stabilisation sensor, track receiver, antenna controller and drive motor, wherein receiving antenna and feed are used to receive downward signal of satellite, and this signal is delivered to described high frequency make up, described high frequency combination is carried out low noise to the downgoing signal that receives and is amplified, and downgoing signal is transformed to intermediate-freuqncy signal, directly deliver to described track receiver and described antenna controller by intermediate frequency slip ring or cable, the described track receiver intermediate frequency angular error signal that combination is sent to high frequency amplifies, conversion and processing, from the intermediate frequency error signal of noise pollution, detect error voltage and deliver to described antenna controller, described error voltage or the angular error signal that produced by the electrical tilt instrument are behind described antenna controller amplification correction, control described drive motor running, promote receiving antenna and point to and tracking target.
Preferably, described systems stabilisation sensor comprises twin shaft electrical tilt instrument that is used for measuring vehicle position angle and course angle and the heading sensor that is used for measuring vehicle longitude and latitude and course angle.
Preferably, described drive motor is for driving the twin shaft stepper motor of antenna bearingt seat and pitching armshaft, and described antenna controller adopts a controllor for step-by-step motor to control two stepper motors respectively.
Preferably, described antenna controller further comprises the optocoupler of relay and isolation input signal.
Preferably, described two shaft step motors, controllor for step-by-step motor, electrical tilt instrument, intermediate frequency and the combination of low frequency slip ring can be contained in the described antenna pedestal.
Preferably, described antenna controller adopts helical scanning and AGC extreme value to differentiate and seeks star.
Further, described vehicle-mounted satellite television autotracking system comprises control panel and display device, can carry out championship input, course angle adjustment, error judgment by described control panel.
In above-mentioned technical scheme, at any time adjust the antenna pedestal attitude by systems stabilisation sensor and motor-driven etc., antenna is on the stable basis always, and follows the tracks of through calculating to catch target satellite and continue by track receiver and antenna controller.With respect to prior art, it is short to the utlity model has capture time, seeks the high characteristics of star precision, and the use of slip ring makes the orientation can be with the unlimited angular turn of any direction, makes that to seek the star process safer quick.
Description of drawings
Fig. 1 is according to vehicle-mounted autotracking system architecture synoptic diagram of the present utility model;
Fig. 2 is according to vehicle-mounted autotracking system works flow process figure of the present utility model.
Embodiment
Below in conjunction with Figure of description and specific embodiment the utility model is described in further detail.
With reference to figure 1, it is according to vehicle-mounted autotracking system architecture synoptic diagram of the present utility model.This vehicle-mounted autotracking system comprises receiving antenna, feed, antenna pedestal, high frequency combination, systems stabilisation sensor, track receiver, antenna controller and drive motor, wherein receiving antenna and feed are the front-end equipments that is used for receiving satellite signal, and its receptivity has directly determined the overall performance of system.High frequency combination (LNB) is carried out low noise to the downgoing signal that receives and is amplified, and downgoing signal is transformed to intermediate-freuqncy signal, directly deliver to track receiver and antenna controller by intermediate frequency slip ring or cable, the described track receiver intermediate frequency angular error signal that combination is sent to high frequency amplifies, conversion and processing, from the intermediate frequency error signal of noise pollution, detect error voltage and deliver to described antenna controller, this error voltage or the angular error signal that produced by the electrical tilt instrument are behind described antenna controller amplification correction, control described drive motor running, promoting receiving antenna points to and tracking target, the error angle of target and antenna axis is reduced within the permissible accuracy scope, or makes the antenna running to specified position.Antenna pedestal is used to support receiving antenna, feed, high frequency combination and other equipment, the movable machinery of antenna pedestal part is outside under the signal controlling, on two orthogonal space axles, promote the antenna running with certain angular velocity and angular acceleration, guarantee antenna accurate tracking target.Simultaneously, antenna pedestal is sent two axial angle position datas and angular velocity data with electrical signal form.Antenna pedestal is a cover accurate mechanical equipment, enough carrying driving forces, enough structural strength and axis rigidities is arranged, and have very high shafting precision and angular data transmitting accuracy, can guarantee that under rugged surroundings antenna turns round reliably.Antenna pedestal wherein can hold two axis drive motors, driver, electrical tilt instrument, data transfer device, intermediate frequency and the combination of low frequency slip ring etc.In a specific embodiment, the systems stabilisation sensor mainly comprises twin shaft electrical tilt instrument (measuring the position angle and the angle of pitch) and heading sensor.Heading sensor can use serial ports and IIC mouth and control system to carry out communication, informs local longitude and latitude and definite course angle position.Twin shaft electrical tilt instrument is the piezoelectric type angular-rate sensor, is used for closely firm solid-state inertial sensor of measured angular speed, produces a voltage that is proportional to rotational angular velocity according to the Corioli effect when input shaft rotates.Because output signal is an electric signal, need by the A/D change-over panel be converted into digital signal again the input aerial controller chip carry out signal Processing.In a specific embodiment, make Antenna Positioning and follow the tracks of the geo-synchronous orbit satellite that to search for by control system master chip driving twin shaft stepper motor drive antenna bearingt seat and pitching armshaft, can adopt a controllor for step-by-step motor to control two stepper motors respectively, preferably, motor driven voltage is direct current 24V, phase current 3A, maximum static torque are 1.2Nm, also can adopt the motor of other parameters.In order to make control system and the driver can proper communication, preferably use relay to switch, optocoupler is isolated input signal.Motor driver has three groups of control signals: stepping pulse signal CP, the pulse signal that control system is sent is converted into the angular displacement of stepper motor, the frequency of CP and the rotating speed of stepper motor are directly proportional, and can carry out the angle that is turned over that angular displacement that step-by-step counting accurately calculates each motor promptly provides the position angle and the angle of pitch; Direction level signal DIR, the sense of rotation of this signal deciding motor uses single pulse mode to commutate in native system; Enable signal EN: the effective and non-productive work state of Control Driver.In a preferred embodiment, receiving antenna adopts parabola antenna, and antenna gain is 32dBi, and effective isotropic radiated power (EIRP) is 50dBm, and antenna polarization can adopt vertical/horizontal polarization or left-handed/dextrorotation circularly polarised mode.Total system is operated in the Ku wave band, operating frequency range is 11.7-12.7GHz, the pitching scope of antenna reaches 19 °-69 °, owing to adopted slip ring, the azimuth axis slewing area is unlimited, tracking angular rate is greater than 50 degree/seconds, under stationary state, capture time is less than 40 seconds, under mobile status, capture time was less than 2 minutes, and system adopts helical scanning and AGC extreme value to differentiate and seeks star.
Describe the course of work of vehicle-mounted satellite television autotracking system below in conjunction with Fig. 2: native system is according to the received satellite-signal of antenna, and after the machine computing, the indication driver captures target satellite rapidly as calculated in the angle of drift that sensor provides.After capturing satellite, carry out the method that " and wave beam " maximum value is judged again, satellite is continued to follow the tracks of.Specifically, the satellite position related data of at first reading in course angle and being imported, seek zero-bit according to these data and calculate initial position, obtain to turn to pre-determined bit by step motor control orientation and pitch axis after the positional information, and judge whether to arrive this position, if no, then repeat these steps of front.Afterwards, use electronic tuning unit TUNER to solve corresponding satellite-signal intensity with signal quality and relevant PID sign indicating number and feed back to the control system chip by tracking signal processing circuit, confirm to seek the accuracy and the degree of accuracy of star, when championship is correct, show correct information, system is ready.Tuner is installed on the A/D plate, uses parallel port and IIC mouth and controller chip to carry out communication.
In a real-time example, described vehicle-mounted satellite television autotracking system comprises control panel and display device, can allow user and control system carry out man-machine conversation, is used for showing different operational characters and related data.Can carry out championship input, course angle adjustment, error judgment etc. by described control panel, data presented is satellite-signal intensity, tracking angle and bomp information etc.Can adopt artificial input or select the mode of preset value to carry out the data input.
Vehicle-mounted satellite autotracking of the present utility model system is used in and receives satellite TV signal on the mobile platform, for example automobile, steamer, train and aircraft etc., the position of its search and definite communications satellite that will receive, make receiving antenna search for and catch target automatically, and in antenna autotracking system operational process with certain tracking accuracy Continuous Tracking target, thereby with maximum receiving gain continuous receiving satellite signal reliably.When target disappears or departs from, native system can be in the scope of big spatial domain the line trace of going forward side by side of code acquisition target, recapture the tram.Native system also can be on stationary platform or other occasion that is suitable for use.
Those skilled in the art are to be understood that; the disclosed specific embodiment of the utility model is not to be intended to the utility model is carried out any restriction; but in order to make the those skilled in the art more clearly understand the utility model, protection domain of the present utility model is only defined by appended claims.
Claims (6)
1, a kind of vehicle-mounted satellite television autotracking system, it is characterized in that: described vehicle-mounted satellite television autotracking system comprises receiving antenna, feed, antenna pedestal, the high frequency combination, the systems stabilisation sensor, track receiver, antenna controller and drive motor, wherein receiving antenna and feed are used to receive downward signal of satellite, and this signal is delivered to described high frequency make up, described high frequency combination is carried out low noise to the downgoing signal that receives and is amplified, and downgoing signal is transformed to intermediate-freuqncy signal, directly deliver to described track receiver and described antenna controller by intermediate frequency slip ring or cable, the described track receiver intermediate frequency angular error signal that combination is sent to high frequency amplifies, conversion and processing, from the intermediate frequency error signal of noise pollution, detect error voltage and deliver to described antenna controller, described error voltage or the angular error signal that produced by the electrical tilt instrument are behind described antenna controller amplification correction, control described drive motor running, promote receiving antenna and point to and tracking target.
2, vehicle-mounted satellite television autotracking according to claim 1 system, it is characterized in that: described systems stabilisation sensor comprises the twin shaft electrical tilt instrument that is used for measuring vehicle position angle and course angle and is used for the heading sensor of measuring vehicle longitude and latitude and course angle.
3, vehicle-mounted satellite television autotracking according to claim 2 system, it is characterized in that: described drive motor is for driving the twin shaft stepper motor of antenna bearingt seat and pitching armshaft, and described antenna controller adopts a controllor for step-by-step motor to control two stepper motors respectively.
4, vehicle-mounted satellite television autotracking according to claim 3 system, it is characterized in that: described antenna controller further comprises relay and isolates the optocoupler of input signal.
5, vehicle-mounted satellite television autotracking according to claim 3 system, it is characterized in that: described two shaft step motors, controllor for step-by-step motor, electrical tilt instrument, intermediate frequency and the combination of low frequency slip ring can be contained in the described antenna pedestal.
6, vehicle-mounted satellite television autotracking according to claim 1 system, it is characterized in that: described vehicle-mounted satellite television autotracking system further comprises control panel and display device, can carry out championship input, course angle adjustment, error judgment by described control panel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620000857 CN2884281Y (en) | 2006-01-13 | 2006-01-13 | Autotracking system for vehicle satellite TV set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620000857 CN2884281Y (en) | 2006-01-13 | 2006-01-13 | Autotracking system for vehicle satellite TV set |
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| CN2884281Y true CN2884281Y (en) | 2007-03-28 |
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| CN 200620000857 Expired - Fee Related CN2884281Y (en) | 2006-01-13 | 2006-01-13 | Autotracking system for vehicle satellite TV set |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101877429A (en) * | 2009-04-27 | 2010-11-03 | 霍尼韦尔国际公司 | Self-stabilizing antenna base |
| CN101938608B (en) * | 2009-06-30 | 2012-02-22 | 上海咏舆通信技术有限公司 | Ship satellite television receiver |
| CN101777695B (en) * | 2009-07-03 | 2012-10-03 | 山东英特力光通信开发有限公司 | Vehicle-mounted Ku wave band satellite communication small-bore antenna system |
| CN103259089A (en) * | 2013-04-22 | 2013-08-21 | 南京中网卫星通信股份有限公司 | Control method and control device of X-waveband weather radar antenna |
| CN104243066A (en) * | 2014-09-05 | 2014-12-24 | 航天东方红卫星有限公司 | Relay satellite tracking program control and autotracking combination mode test system and method |
| CN104459687A (en) * | 2014-11-24 | 2015-03-25 | 北京遥测技术研究所 | Multi-objective vehicle-mounted measurement and control system based on panel self-tracking antennas |
| CN104681986B (en) * | 2015-02-16 | 2017-05-17 | 南京中网卫星通信股份有限公司 | Satellite finding method of satellite antenna in inclined state |
| CN113437517A (en) * | 2021-04-21 | 2021-09-24 | 北京爱科迪通信技术股份有限公司 | Satellite tracking system and method for satellite station |
-
2006
- 2006-01-13 CN CN 200620000857 patent/CN2884281Y/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101877429A (en) * | 2009-04-27 | 2010-11-03 | 霍尼韦尔国际公司 | Self-stabilizing antenna base |
| CN101938608B (en) * | 2009-06-30 | 2012-02-22 | 上海咏舆通信技术有限公司 | Ship satellite television receiver |
| CN101777695B (en) * | 2009-07-03 | 2012-10-03 | 山东英特力光通信开发有限公司 | Vehicle-mounted Ku wave band satellite communication small-bore antenna system |
| CN103259089A (en) * | 2013-04-22 | 2013-08-21 | 南京中网卫星通信股份有限公司 | Control method and control device of X-waveband weather radar antenna |
| CN104243066A (en) * | 2014-09-05 | 2014-12-24 | 航天东方红卫星有限公司 | Relay satellite tracking program control and autotracking combination mode test system and method |
| CN104243066B (en) * | 2014-09-05 | 2016-06-01 | 航天东方红卫星有限公司 | A kind of follow the tracks of the program control of relay satellite and autotracking united mode test macro and method |
| CN104459687A (en) * | 2014-11-24 | 2015-03-25 | 北京遥测技术研究所 | Multi-objective vehicle-mounted measurement and control system based on panel self-tracking antennas |
| CN104681986B (en) * | 2015-02-16 | 2017-05-17 | 南京中网卫星通信股份有限公司 | Satellite finding method of satellite antenna in inclined state |
| CN113437517A (en) * | 2021-04-21 | 2021-09-24 | 北京爱科迪通信技术股份有限公司 | Satellite tracking system and method for satellite station |
| CN113437517B (en) * | 2021-04-21 | 2024-04-12 | 北京爱科迪通信技术股份有限公司 | Satellite station satellite following system and method |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |