CN101630968A - Method and antenna system for locking satellite by scanning data - Google Patents
Method and antenna system for locking satellite by scanning data Download PDFInfo
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- CN101630968A CN101630968A CN 200810130736 CN200810130736A CN101630968A CN 101630968 A CN101630968 A CN 101630968A CN 200810130736 CN200810130736 CN 200810130736 CN 200810130736 A CN200810130736 A CN 200810130736A CN 101630968 A CN101630968 A CN 101630968A
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Abstract
The invention discloses a method and an antenna system for locking a satellite by scanning data. The method is carried out on a vehicle by mainly using the antenna system and a satellite locking method, and automatically locks at least one satellite positioned in space according to a locking signal. The method and the antenna system have the main technical characteristics that: a scanning drive signal is used for driving an antenna to scan space so as to acquire a scanning datum, and defines satellite coordinates of a plurality of satellites positioned in space according to a relative peak value in the scanning datum; then the satellite coordinate of each satellite is recorded; and the satellite coordinate corresponding to the satellites to be locked in the locking signal is captured after the locking signal is received, so that the antenna is driven to point the satellite to be locked.
Description
Technical field
The invention relates to a kind of satellite lock-in techniques, be meant a kind of satellite lock-in techniques of utilizing scan-data to come locking satellite especially.
Background technology
Visit the gift of flourishing side's exhibition of satellite technology, satellite technology has been brought many conveniences in life for the mankind.Particularly in daily life, satellite fix, satellite phone, satellite broadcasting, satellite navigation etc. such as, the interpersonal distance that there's no one who doesn't or isn't furthered allows the mankind feel more and is with each other though far apart.Wherein, the satellite broadcasting technology is widely used in satellite programming especially to be play, and the mankind in each corner can both receive important real-time broadcast program in the world.
In existing satellite broadcasting technology, be broadly divided into two kinds of fixed-point type satellite broadcasting and movable satellite broadcastings, wherein, fixed-point type satellite broadcasting technology, be on ground or building, to set up a satellite antenna system, load satellite data then, order about the specific satellite of antenna direction, then and carry out the transmission of signal and data between the specific satellite.Yet, in fixed-point type satellite broadcasting technology, in default of mobility, according to the transmitted power of its signal, outside its shape coverage, just can't receive its DTB Digital Terrestrial Broadcasting of sending (Digital Video Broadcasting-Terrestrial; DVB-T) signal.
Because the above-mentioned shortcoming of fixed-point type satellite broadcasting technology ubiquity, movable satellite broadcasting technology just with arise.In existing movable satellite broadcasting technology, usually with satellite broadcasting car or SNG (Satellite News Gathering; SNG) car is the most representative.In movable satellite broadcasting The Application of Technology, usually an antenna system is arranged on the carrier (being satellite broadcasting car or SNG car), then, make the specific satellite of antenna direction, carry out the transmission of signal and data then with satellite.
When in case desire is switched another satellite of locking with antenna system, just must in advance all satellite datas be inputed to the database of antenna system inside, choose the satellite of institute's desire locking then, capture the co-ordinates of satellite of institute's desire locking according to this, could drive the satellite that satellite points to institute's desire locking then.Or antenna system must be online to the co-ordinates of satellite of surface based platform or control centre's download all or part, chooses the satellite data of institute's desire locking then, according to this locking satellite.
On practice utilization aspect, can accurately point to the satellite of institute's desire locking, depend on three main coordinate factors usually: one is a co-ordinates of satellite, and satellite is with respect to the right ascension (Rightascension of a ground reference coordinate; R.A.) with declination (Declination; Decl) coordinate; It two is the longitude and latitude at antenna system place, i.e. the longitude and latitude at carrier place; It three is the carrier orientation at antenna system place, i.e. the carrier azimuth and the carrier elevation angle pointed to of carrier.
In the prior art, be the mode of utilizing the orientation initialization to proofread and correct mostly, all azimuths and the elevation angle are proofreaied and correct, and defined specific reference orientation, decide the sensing of antenna according to this in conjunction with co-ordinates of satellite.Yet, on practice utilization aspect,, cause the antenna system that is set up on the carrier to cause the generation deviation of default initialization reference azimuth along with vibrations for years because carrier can constantly move.Therefore, after loading satellite data and capturing co-ordinates of satellite, still wayward antenna accurately points to the satellite of institute's desire locking.
Under above prerequisite, the inventor feel deeply real be necessary to develop the more effective satellite lock-in techniques of a kind of renewal, but the phase can be set up satellite position data and the co-ordinates of satellite that real-time update is applicable to antenna system itself voluntarily by antenna system itself, can both make antenna accurately point to the satellite of institute's desire locking at any time according to this.
Summary of the invention
Technical problem and purpose that institute of the present invention desire solves:
Taking a broad view of the above, is to utilize satellite data and the co-ordinates of satellite that stores in advance in the prior art, or utilizes satellite data and co-ordinates of satellite from surface based platform or control centre's download, orders about the coordinate of antenna direction institute desire locking; Yet the antenna system on the carrier is along with for years the moving of carrier, and causes the generation deviation of default initialization reference azimuth, causes wayward antenna accurately to point to the satellite of institute's desire locking.
In view of this, main purpose of the present invention is to provide a kind of satellite lock-in techniques of implementing on carrier, it utilizes the mode of scanning, obtain the most real-time scan-data that also meets most antenna system and carrier present situation, set up the most in real time and meet most the co-ordinates of satellite of antenna system and carrier present situation according to this, make antenna can accurately point to the satellite of institute's desire locking.
For achieving the above object, the present invention adopts following technological means: provide a kind of satellite lock-in techniques, it mainly is to utilize an antenna system and a satellite locking means to implement on a carrier, and automatically locks at least one satellite that is arranged in space according to a locking signal.Major technique of the present invention is characterised in that the one scan drive signal scans space in order to driven antenna, obtaining the one scan data, and defines the co-ordinates of satellite of a plurality of satellites that are positioned at space according to the relative peak in the scan-data.Then, to the co-ordinates of satellite of each satellite record in addition, and after receiving locking signal, the pairing co-ordinates of satellite of satellite of institute's desire locking in the acquisition locking signal, driven antenna is pointed to the satellite of institute's desire locking according to this.
In preferred embodiment of the present invention, utilize in scanning process, reception judges whether to exist above-mentioned relative peak from the signal strength signal intensity of satellite between adjacent scanning coordinate, defines co-ordinates of satellite according to this.In addition, in preferred embodiment of the present invention further with co-ordinates of satellite in conjunction with carrier coordinate (satellite positioning coordinate and the carrier orientation that comprise the carrier place), use the satellite that control antenna more accurately points to institute's desire locking.
The effect that prior art of the present invention is compared:
Compared to prior art, because in satellite lock-in techniques provided by the present invention, the special mode of utilizing scanning, obtain the most real-time scan-data that also meets most antenna system and carrier present situation, set up the most in real time and meet most the co-ordinates of satellite of antenna system and carrier present situation according to this, therefore, the present invention not only can effectively get rid of in the prior art, because antenna system is along with the carrier problem that moves the default initialization reference azimuth generation deviation that is caused with vibrations for years, more can effectively promote the accuracy of antenna direction, and then promote the reception and transmission quality of satellite-signal.。
Specific embodiment of the present invention will be by following embodiment and graphic being further described.
Description of drawings
Fig. 1 is in the first embodiment of the invention, and antenna system is to be set up on the carrier to implement;
Fig. 2 is the functional block diagram of first embodiment of the invention;
Fig. 3 is in first embodiment of the invention, and the DVB-S antenna is to adopt the mode of horizontal scanning to obtain scan-data;
Fig. 4 is in first embodiment of the invention, utilizes scan-data to parse relative peak and pairing scanning coordinate;
Fig. 5 is in first embodiment of the invention, and gps satellite is to transmit (GPS) Kinematic Positioning signal and produce the satellite positioning coordinate at carrier place;
Fig. 6 is in first embodiment of the invention, the carrier azimuth that carrier is pointed;
Fig. 7 is in first embodiment of the invention, the carrier elevation angle that carrier is pointed;
Fig. 8 is in first embodiment of the invention, the satellite position data of being made up of co-ordinates of satellite and carrier coordinate;
Fig. 9 is the functional block diagram of second embodiment of the invention; And
Figure 10 and 11 is for being applicable to the simple and easy flow chart of the first embodiment of the invention and second embodiment simultaneously.
[main element symbol description]
100 antenna systems
200 carriers
300,300a, 300b (program) satellite
400 gps satellites
500,500a, 500b Digital Television
1 satellite-signal control box
11 processing units
111 microprocessors
112 data processors
12 operation interfaces
13 Drive and Control Circuit
14 control signal amplifiers
15 control signal drive circuits
16 memory cell
161 operation programs
162 co-ordinates of satellite memory blocks
163 carrier coordinate memory blocks
17 encoders
18 DVB-S/T receivers
19 DVB-T reflectors
2 (transmitting-receiving) antenna sets
21 DVB-S antennas
22 DVB-T antennas
3 driving elements
4 navigation systems
41 gps systems
42 gps antennas
43 carrier position sensor unit
431 gyroscopes
432 gravity sensing elements
5 antenna systems
51 microprocessors
52 operation interfaces
53 drive systems
531 Drive and Control Circuit
532 driving elements
54 (transmitting-receiving) antenna sets
541 DVB-S antennas
542 DVB-T antennas
55 satellite-signal treatment loops
551 tuners
552 decoders
56 navigation systems
561 gps systems
562 gps antennas
563 carrier position sensor unit
5631 gyroscopes
5632 gravity sensing elements
57 memory cell
571 operation programs
572 co-ordinates of satellite memory blocks
573 carrier coordinate memory blocks
58 control signal treatment loops
581 control signal amplifiers
582 control signal drive circuits
The digital signal transceiver of 59 action
P00～P33 scanning coordinate
(L0, A0) satellite positioning coordinate
Δ 0 azimuth increment
ΔΦ elevation angle increment
Δ AZ0 carrier azimuth
The Δ E0 carrier elevation angle
The I1 horizontal direction
The I2 vertical direction
S1, S1 ' scanning drive signal
S2, S2 ' satellite-signal
S3, S3 ' be the Kinematic Positioning signal (GPS)
S4, S4 ' (carrier orientation) Kinematic Positioning signal
S5, S5 ' locking signal
S6, S6 ' antenna control signal
S7, S7 ' drive signal
S8, S8 ' control signal
S9, S9 ' DVB-T vision signal
Embodiment
Because satellite lock-in techniques provided by the present invention, can be widely used in the antenna system that is erected on the carrier, use the satellite of accurate locking antenna direction institute desire locking, on circuit and structural design, all can make the adjustment and the improvement of all localities in view of the above, its combination execution mode is too numerous to enumerate especially, so give unnecessary details no longer one by one, only enumerate two wherein preferable embodiment, and put a simple process flow figure in order and specified at this.
In first embodiment of the invention, utilize a satellite-signal control box and antenna and other accessory to form an antenna system, and antenna system is set up in realizes the disclosed technology of the present invention on the carrier.See also Fig. 1 and Fig. 2, Fig. 1 is in the first embodiment of the invention, and antenna system is to be set up on the carrier to implement; Fig. 2 is the functional block diagram of first embodiment of the invention.As shown in the figure, an antenna system 100 is to be set up on the carrier 200, and carrier 200 can be land, sea or empty aircraft.Antenna system 100 comprises a satellite-signal control box 1, one (transmitting-receiving) antenna sets 2, a driving element 3 and a location system 4.Simultaneously, have three (program) satellites 300,300a and 300b in the space.
Satellite-signal control box 1 is coupled to antenna sets 2 by driving element 3, and comprises a processing unit 11, an operation interface 12, a Drive and Control Circuit 13, a control signal amplifier 14, a control signal drive circuit 15, a memory cell 16, an encoder 17, one digital satellite/terrestrial broadcasting (DigitalVideo Broadcasting-Satellite/Terrestrial; DVB-S/T) receiver 18 and a numerical digit terrestrial broadcasting (Digital Video Broadcasting-Terrestrial; DVB-T) reflector 19.
Processing unit 11 comprises a microprocessor 111 and a data processor 112.Operation interface 12 is coupled to microprocessor 111, and can be a guidance panel.Drive and Control Circuit 13 is coupled to microprocessor 111 and driving element 3, and control signal amplifier 14 is coupled to microprocessor 111, and control signal drive circuit 15 is respectively coupled to control signal amplifier 14, DVB-S/T receiver 18 and antenna sets 2.
Memory cell 16 is coupled to microprocessor 111 and data processor 112, and comprises an operation program 161, a co-ordinates of satellite memory block 162 and a carrier coordinate memory block 163.Encoder 17 is respectively coupled to microprocessor 111, DVB-S/T receiver 18 and antenna sets 2.DVB-S/T receiver 18 is respectively coupled to microprocessor 111, DVB-T reflector 19 and antenna sets 2.
In the present embodiment, antenna sets 2 comprises a digital satellite broadcasting (Digital Video Broadcasting-Satellite; DVB-S) antenna 21 and a DTB Digital Terrestrial Broadcasting (Digital VideoBroadcasting-Terrestrial; DVB-T) antenna 22, and DVB-S antenna 21 can be disc-shaped antenna or plate type antenna.Driving element 3 can be a stepper motor, uses to drive DVB-S antenna 21 and the 22 adjustment sensings of DVB-T antenna.In the practice utilization, antenna sets 2 can only comprise a DVB-S antenna, or comprises the combination of at least one DVB-S antenna and at least one DVB-T antenna.
Under general situation, the adjustment of sensing comprises the adjustment at the azimuth and the elevation angle usually.Navigation system 4 comprises a gps system 41, a gps antenna 42 and a carrier position sensor unit 43.Gps system 41 is respectively coupled to gps antenna 42 and microprocessor 111, and carrier position sensor unit 43 is coupled to microprocessor 111, and comprises a gyroscope 431 and a gravity sensing element 432.
In the present embodiment, when the user can operate above-mentioned operation interface 12, can set scan mode (as horizontal sweep or vertical scanning etc.) and sweep parameter (as: sweep parameters such as initial and termination scope, scanning angle increment and the sweep time of scanning angle), operation interface 12 is triggered transmit one scan drive signal S1 to microprocessor 111.Microprocessor 111 is according to scanning drive signal S1, orders about DVB-S antenna 21 with the scan mode that sets and parameter via Drive and Control Circuit 13 control driving component 3 and begins space is scanned, and uses obtaining the one scan data.
After consulting Fig. 2, see also Fig. 3 and Fig. 4, Fig. 3 is in first embodiment of the invention, the DVB-S antenna is to adopt the mode of horizontal scanning to obtain scan-data; Fig. 4 is in first embodiment of the invention, utilizes scan-data to parse relative peak and pairing scanning coordinate.In the present embodiment, be the mode that adopts horizontal sweep, with an azimuth increment Delta θ, carry out horizontal scanning along a horizontal direction I1.After finishing horizontal scanning for the first time, the elevation angle is increased by an elevation angle increment ΔΦ, and then carry out the horizontal scanning second time, the rest may be inferred by analogy.
In scanning process, can produce a plurality of scanning coordinates, only indicate scanning coordinate P00～P33 in the present embodiment.When DVB-S antenna 21 points to each scanning coordinate, can receive different satellite-signal S2 respectively, and its signal strength signal intensity differs, DVB-S antenna 21 point under each scanning coordinate signal intensity profile as shown in Figure 4.Generally speaking, above-mentioned signal strength signal intensity can be defined by inductive voltage value or power change values usually.
In Fig. 4, when DVB-S antenna 21 points to scanning coordinate P11, resulting signal strength signal intensity is 15, and the signal strength signal intensity of scanning coordinate P01, P10, P21 and P12 gained that it is contiguous is respectively 5,5,6 and 7, all is significantly less than the signal strength signal intensity 15 of scanning coordinate P11.Apparently, has relative peak at scanning coordinate P11; The preferably, can utilize this moment relative peak that microprocessor 111 further judges scanning coordinate P11 places whether by arround disturbance or interference signal caused.If the relative peak at scanning coordinate P11 place is caused by interference signal, when decidable points to scanning coordinate P11 at DVB-S antenna 21, point to a satellite (may be one among satellite 300,300a and the 300b), can capture the co-ordinates of satellite that scanning coordinate P11 is defined as this satellite place according to this.
Similarly, when DVB-S antenna 21 pointed to scanning coordinate P23, resulting signal strength signal intensity was 18, its contiguous scanning coordinate P13, P22, was respectively 5,6 and 6 with the signal strength signal intensity of P33 gained, all was significantly less than the signal strength signal intensity 18 of scanning coordinate P23.Apparently, has relative peak at scanning coordinate P23; Therefore, when decidable points to scanning coordinate P23 at DVB-S antenna 21, point to another satellite, can capture the co-ordinates of satellite that scanning coordinate P23 is defined as another satellite place according to this, the rest may be inferred by analogy.In other words, in the present embodiment, the co-ordinates of satellite of being got is positioned at scanning coordinate P11 and P23, can give co-ordinates of satellite (Δ θ respectively, ΔΦ) with another co-ordinates of satellite (2 Δ θ, 3 ΔΦs), and can be with co-ordinates of satellite (Δ θ, ΔΦ) is recorded in the co-ordinates of satellite memory block 162 of memory cell 16 with another co-ordinates of satellite (2 Δ θ, 3 ΔΦs).
Such as in affiliated technical field, have and know that usually the knowledgeable all can understand easily, in the practice utilization, except carrying out also can carrying out rectilinear scanning the horizontal scanning along above-mentioned horizontal direction I1 along a vertical direction I2 shown in Figure 3.In addition, when carrying out the parsing of co-ordinates of satellite, resulting signal strength signal intensity in the time of also can utilizing DVB-S antenna 21 to point to each scanning coordinate, the mode of comparing with a predefined intensity reference value decides above-mentioned co-ordinates of satellite.
After consulting Fig. 2, see also Fig. 5 to Fig. 8, Fig. 5 is in first embodiment of the invention, gps satellite transmits (GPS) Kinematic Positioning signal and produces the satellite positioning coordinate at carrier place; Fig. 6 is in first embodiment of the invention, the carrier azimuth that carrier is pointed; Fig. 7 is in first embodiment of the invention, the carrier elevation angle that carrier is pointed; Fig. 8 is in first embodiment of the invention, the satellite position data of being made up of co-ordinates of satellite and carrier coordinate.
Because in the process that scans, carrier 200 (being shown in Fig. 1) is still constantly moving, and therefore its carrier coordinate also can, can influence the accuracy of co-ordinates of satellite defined above constantly moving.Edge this, be in mobile status following time at carrier, need give the coordinate of the carrier when scanning, could more real-time with more meet under the condition of antenna system and carrier 200 present situations the position of grasping satellite reality more accurately.
When carrying out above-mentioned scanning, gps system 41 can receive one (GPS) Kinematic Positioning signal S3 that is sent by a gps satellite 400 by gps antenna 42, then (GPS) Kinematic Positioning signal S3 is sent to microprocessor 111 or data processor 112, use a satellite positioning coordinate (L0 who obtains carrier 200, A0), and the satellite positioning coordinate of carrier normally represent the longitude and the latitude at carrier 200 places.Simultaneously, carrier position sensor unit 43 can induce a carrier orientation at carrier 200 places, sends out one (carrier orientation) Kinematic Positioning signal S4 according to this to microprocessor 111 or data processor 112.The carrier orientation comprises a carrier azimuth/Δ AZ0 and a carrier elevation angle Δ E0, therefore, the carrier orientation can (Δ AZ0 ,/Δ E0) tabular form in addition.Wherein carrier azimuth Δ AZ0 is sensed by gyroscope 431, and carrier elevation angle Δ E0 is sensed by gravity sensing element 432.(L0 A0) all can be recorded in the carrier coordinate memory block 163 of memory cell 16 with carrier orientation (Δ AZ0, Δ E0) to the satellite positioning coordinate at above-mentioned carrier place.Simultaneously, above co-ordinates of satellite can be combined with the carrier coordinate, and each co-ordinates of satellite is given respectively after the satellite numbering, can obtain satellite position data as shown in Figure 8.
Please get back to Fig. 2, after finishing above-mentioned scanning, sensing and recording step, when carrier 200 moves to the another location, and when user's desire locks a satellite, can operate above-mentioned operation interface 12, select the satellite numbering of the satellite of institute's desire locking, send a locking signal S5 according to this to microprocessor 111.When the desire locking person of institute is numbered 0001 satellite for satellite, microprocessor 111 or data processor 112 meetings are 162 loading co-ordinates of satellite (Δ θ from satellite coordinate memory block, ΔΦ), and from carrier coordinate memory block the 163 satellite positioning coordinate (L0 that load the carrier places, A0) with carrier orientation (Δ AZ0, Δ E0).Microprocessor 111 can capture new satellite positioning coordinate by gps system 41 respectively again, and captures new carrier orientation again by carrier position sensor unit.
Then, microprocessor 111 or data processor 112 can be according to co-ordinates of satellite (the Δ θ that downloads, ΔΦ), the satellite positioning coordinate (L0 at carrier place, A0), carrier orientation (the Δ AZ0 at carrier place, Δ E0), and the satellite positioning coordinate and the carrier orientation of acquisition again, utilize operation program 161 to be calculated the direction that DVB-S antenna 21 should refer to, and send out an antenna control signal S6 to Drive and Control Circuit 13 according to operation result.Drive and Control Circuit 13 can send a drive signal S7 to driving element 3, drives 21 lockings of DVB-S antenna according to this and points to above-mentioned 0001 the satellite one of (can be among satellite 300,300a and the 300b) that is numbered.
In the same manner, when the desire locking person of institute is numbered 0002 satellite for satellite, microprocessor 111 or data processor 112 meetings are 162 loading co-ordinates of satellite (2 Δ θ from satellite coordinate memory block, 3 ΔΦs), and from carrier coordinate memory block the 163 satellite positioning coordinate (L0 that load the carrier places, A0) with carrier orientation (Δ AZ0, Δ E0).Microprocessor 111 can capture new satellite positioning coordinate by gps system 41 respectively again, and captures new carrier orientation again by carrier position sensor unit 43.
Then, microprocessor 111 or data processor 112 can be according to co-ordinates of satellite (the 2 Δ θ that download, 3 ΔΦs), satellite positioning coordinate (L0, A0), carrier orientation (Δ AZ0, Δ E0), and the satellite positioning coordinate and the carrier orientation of acquisition again, utilize operation program 161 to be calculated the direction that DVB-S antenna 21 should refer to, and send out antenna control signal S6 to Drive and Control Circuit 13 according to operation result.Drive and Control Circuit 13 can send drive signal S7 to driving element 3, drives 21 lockings of DVB-S antenna according to this and points to above-mentioned 0002 the satellite (for one of among satellite 300,300a and the 300b) that is numbered, and the rest may be inferred by analogy.
When user's desire control DVB-S/T receiver 18, but trigger action interface 12, make microprocessor 111 transmit a control signal S8 to control signal amplifier 14, control signal amplifier 14 can be amplified control signal S8, and be sent to control signal drive circuit 15, and control DVB-S/T receiver 18 according to control signal S8.
Before receiving satellite signal S2 not, can utilize microprocessor 111 to download at least one digital of digital video data from memory cell 16, digital of digital video data is encoded into after the DVB-T vision signal S9 via encoder 17, be sent to DVB-T reflector 19 via DVB-S/T receiver 18, via DVB-T reflector 19 DVB-T vision signal S9 is sent out again, receive with 500a for two Digital Television 500.Simultaneously, also can utilize DVB-T antenna 22, receive extraneous DVB-T vision signal, and the data storing that the DVB-T vision signal is transmitted via microprocessor 111 is to memory cell 16; Or, utilize DVB-T reflector 19 to convert the DVB-T vision signal that is received to above-mentioned DVB-T vision signal S9 and send out.
Such as have in affiliated technical field and know that usually the knowledgeable all can understand easily, in the practice utilization, preferably, DVB-S/T receiver 18 can possess or link a real-time screen display (On-Screen Display; OSD) interface, and the function of above-mentioned operation interface 12 can replace by the OSD interface.In other words, the user also can come antenna system 100 is carried out above-mentioned all operations and control by operation OSD interface.
After receiving satellite signal S2, can utilize microprocessor 111 to download at least one digital of digital video data from memory cell 16, digital of digital video data can be encoded into (DVB-S) satellite-signal S2 or DVB-T vision signal S9 respectively by encoder 17.(DVB-S) satellite-signal S2 is sent to the satellite of locking via DVB-S antenna 21.DVB-T vision signal S9 is sent to DVB-T reflector 19 via DVB-S/T receiver 18, via DVB-T reflector 19 DVB-T vision signal S9 is sent out again, receives with 500a for Digital Television 500.
Simultaneously, blocked satellite one of (can be among satellite 300,300a and the 300b) can transmit satellite-signal S2 to satellite-signal control box 1 via DVB-S antenna 21, and satellite-signal S2 can be sent to microprocessor 111 through after the decoding.The form that microprocessor 111 can transfer the satellite-signal S2 through decoding to digital satellite (program) data is stored in the memory cell 16.Simultaneously, satellite-signal S2 also can be received by DVB-S/T receiver 18, and converts DVB-T vision signal S9 to, utilizes DVB-T reflector 19 that DVB-T vision signal S9 is sent out then, receives with 500a for Digital Television 500.Such as have in described technical field and know that usually the knowledgeable all can understand easily, above-mentioned control signal S8 in order to control DVB-S/T receiver 18 will help satellite-signal S2 and the conversion of DVB-T vision signal S9 and the control of transmission.
Hold the above, below specify another kind of application form of the present invention continuing to enumerate second embodiment of the invention.The maximum of the second embodiment of the invention and first embodiment does not exist together, and is the function of satellite signal controlling box among first embodiment is dispersed in another antenna system, and its allomeric function is very similar to the described person of first embodiment.See also Fig. 9, it is the functional block diagram of second embodiment of the invention.As shown in the figure, one antenna system 5, be set up in above-mentioned carrier 200 (being shown in Fig. 1), antenna system 5 comprises a microprocessor 51, an operation interface 52, a drive system 53, one (transmitting-receiving) antenna sets 54, a satellite-signal treatment loop 55, a location system 56, a memory cell 57, a control signal treatment loop 58 and an action digital signal transceiver 59.Simultaneously, also have above-mentioned three (program) satellites 300,300a and 300b in the space.
Satellite-signal treatment loop 55 comprises a tuner 551 and a decoder 552, and tuner 551 is coupled to antenna sets 54, and decoder 552 is respectively coupled to tuner 551 and microprocessor 51.Navigation system 56 comprises a gps system 561, a gps antenna 562 and a carrier position sensor unit 563.Gps system 561 is respectively coupled to gps antenna 562 and microprocessor 51, and carrier position sensor unit 563 is coupled to microprocessor 51, and comprises a gyroscope 5631 and a gravity sensing element 5632.
In the present embodiment, when the user can operate above-mentioned operation interface 52, can set scan mode (as horizontal sweep or vertical scanning etc.) and parameter (as: scanning angle initial and termination scope, scanning angle increment and sweep time etc.), operation interface 52 is triggered transmit one scan drive signal S1 ' to microprocessor 51.Microprocessor 51 is according to scanning drive signal S1 ', ordering about DVB-S antenna 541 with the scan mode that sets and parameter via Drive and Control Circuit 531 control driving component 532 begins space is scanned, in scanning process, can receive respectively from the satellite-signal S2 ' of satellite, use obtaining the one scan data at a plurality of scanning coordinates.Then, utilize scan-data, judge relative peak, resolve and define the co-ordinates of satellite at satellite place, and co-ordinates of satellite is recorded in the co-ordinates of satellite memory block 572 of memory cell 57.Because in the present embodiment, scan mode is similar or identical to person described in first embodiment with the definition mode of co-ordinates of satellite, thus below no longer given unnecessary details.
Similarly, because in the process that scans, carrier 200 (being shown in Fig. 1) is still constantly moving, and therefore its carrier coordinate also can, can influence the accuracy of co-ordinates of satellite defined above constantly moving.Edge this, be in mobile status following time at carrier, need give the coordinate of the carrier when scanning, could more real-time with more meet under the condition of antenna system and carrier 200 present situations the position of grasping satellite reality more accurately.
When carrying out above-mentioned scanning, gps system 561 can receive one (GPS) Kinematic Positioning signal S3 ' that is sent by gps satellite 400 by gps antenna 562, then (GPS) Kinematic Positioning signal S3 ' is sent to microprocessor 51, uses a satellite positioning coordinate that obtains carrier 200.Simultaneously, carrier position sensor unit 563 can induce a carrier orientation at carrier 200 places, sends out one (carrier orientation) Kinematic Positioning signal S4 ' according to this to microprocessor 51.The carrier orientation comprises a carrier azimuth and a carrier elevation angle, and wherein the carrier azimuth is sensed by gyroscope 5631, and the carrier elevation angle is sensed by gravity sensing element 5632.Above-mentioned satellite positioning coordinate and carrier orientation all can be recorded in the carrier coordinate memory block 573 of memory cell 57.Simultaneously, above co-ordinates of satellite can be combined with the carrier coordinate, and give each co-ordinates of satellite is given respectively after the satellite numbering, can obtain satellite position data as shown in Figure 8.
After finishing above-mentioned scanning, sensing and recording step, when carrier moves to the another location, and when user's desire locks a satellite, can operate above-mentioned operation interface 52, select the satellite numbering of the satellite of institute's desire locking, send a locking signal S5 ' according to this to microprocessor 51, send an antenna control signal S6 ' to Drive and Control Circuit 531 in the described mode of first embodiment then.Drive and Control Circuit 531 can send a drive signal S7 ' to driving element 532, drives the satellite that institute's desire locking is pointed in 541 lockings of DVB-S antenna according to this.
When the user desires control action digital signal transceiver 59, can utilize trigger action interface 52, make microprocessor 51 transmit a control signal S8 ' to control signal amplifier 581, control signal amplifier 581 can be amplified control signal S8 ', and be sent to control signal drive circuit 582, and come control action digital signal transceiver 59 according to control signal S8 '.
At receiving satellite signal S2 ' not before, can utilize microprocessor 51 to download at least one digital of digital video data from memory cell 57, digital of digital video data is encoded into a DVB-T vision signal S9 ' afterwards via the digital signal transceiver 59 of action, S9 ' sends out with the DVB-T vision signal, receives for three Digital Television 500,500a and 500b.Simultaneously, also can utilize DVB-T antenna 542, receive extraneous DVB-T vision signal, and the data storing that the DVB-T vision signal is transmitted via microprocessor 51 is to memory cell 57; Or, utilize the digital signal transceiver 59 of action to convert the DVB-T vision signal that is received to above-mentioned DVB-T vision signal S9 ' and send out.
At receiving satellite signal S2 ' afterwards, can utilize microprocessor 51 to download at least one digital of digital video data from memory cell 57, digital of digital video data can be encoded into (DVB-S) satellite-signal S2 ' or DVB-T vision signal S9 ' respectively by the digital signal transceiver 59 of action.(DVB-S) satellite-signal S2 ' can be sent to satellite 300,300a or the 300b of locking via DVB-S antenna 541.DVB-T vision signal S9 ' can send out via the digital signal transceiver 59 of action, receives for Digital Television 500,500a and 500b.
Simultaneously, blocked satellite one of (can be among satellite 300,300a and the 300b) can transmit satellite-signal S2 ' to tuner 551 via DVB-S antenna 541, use tuning satellite-signal S2 ', can be deciphered via decoder 552 through tuning satellite-signal S2 ', and be sent to microprocessor 51.The form that the data that microprocessor 51 can be transmitted the satellite-signal S2 ' through decoding transfer digital satellite (program) data to is stored in the memory cell 57.
Simultaneously, blocked satellite also can transmit satellite-signal S2 ' to the digital signal transceiver 59 of taking action via DVB-S antenna 541, the digital signal transceiver 59 of taking action can convert satellite-signal S2 ' to DVB-T vision signal S9 ', and DVB-T vision signal S9 ' sent out, for receptions such as Digital Television 500,500a and 500b.Such as have in described technical field and know that usually the knowledgeable all can understand easily, above-mentioned control signal S8 ' in order to control action digital signal transceiver 59 will help satellite-signal S2 ' and the conversion of DVB-T vision signal S9 ' and the control of transmission.
At last, know usually that in order to make in affiliated technical field, to have the knowledgeable can store the disclosed technology contents of the present invention more easily, below, will provide an easy flow chart that the disclosed method of utilizing the scan-data locking satellite of the present invention is described.See also Figure 10 and 11, it is for being applicable to the simple and easy flow chart of the first embodiment of the invention and second embodiment simultaneously.For convenience of explanation, this flow chart is illustrated, therefore, must consults Fig. 2 simultaneously below with reference to first embodiment.As shown in the figure, when enforcement is of the present invention, must scan drive signal S1 to microprocessor 111 (step 110) to send out in first trigger action interface 12, drive 21 pairs of spaces of DVB-S antenna according to this and scan (step 120).
Then, utilize DVB-S antenna 21 to receive from the satellite-signal S2 (step 130) of satellite 300,300a or 300b, and with satellite-signal S2 under each scanning coordinate (as scanning coordinate P00～P33 etc.), parse corresponding signal strength signal intensity (step 140), and the signal strength signal intensity that parsed and corresponding scanning coordinate are combined into as shown in Figure 4 one scan data (step 150).
Then, must resolve (step 160), judge whether all signal strength signal intensities in the scan-data possess above-mentioned relative peak (step 170) scan-data.In step 170,, then get back to step 160 and continue scan-data is resolved if do not possess relative peak; Continue then to judge whether relative peak is caused (step 180) by disturbance or interference signal if possess relative peak.In step 180,, then get back to step 160 and continue scan-data is resolved if relative peak is caused by disturbance or interference signal; If relative peak is caused by disturbance or interference signal, then capture the pairing scanning coordinate of relative peak (step 190).
Afterwards, can receive (GPS) Kinematic Positioning signal S3 and (carrier orientation) Kinematic Positioning signal S4, to parse the carrier coordinate at antenna place, wherein, the carrier coordinate can comprise above-mentioned satellite positioning coordinate and carrier orientation; Simultaneously, can parse co-ordinates of satellite (step 210), and co-ordinates of satellite and carrier coordinate are stored in the co-ordinates of satellite memory block 162 and carrier coordinate memory block 163 (steps 220) of memory cell 16 respectively according to the scanning coordinate that possesses relative peak.
Next, the user can utilize operation interface 12 to select the satellite of institute's desire locking, send out locking signal S5 according to this, locking signal S5 can be received by microprocessor 111, and microprocessor 111 can capture the co-ordinates of satellite (step 230) of locked satellite according to locking signal S5.Then, microprocessor 111 can come transmitting antenna control signal S6 to Drive and Control Circuit 13 (step 240) according to co-ordinates of satellite and carrier coordinate.Drive and Control Circuit 13 can send drive signal S7 to driving element 3 (step 250) according to antenna control signal S6.At last, driving element 3 can drive DVB-S antenna 21 according to drive signal S7 and point to blocked satellite (step 260).
Such as those skilled in the art all can understand easily, because in satellite lock-in techniques provided by the present invention, the special mode of utilizing scanning, obtain the most real-time scan-data that also meets most antenna system and carrier present situation, set up the most in real time and meet most the co-ordinates of satellite of antenna system and carrier present situation according to this; Therefore, not only can get rid of in the prior art, because antenna system more can effectively promote the accuracy of antenna direction along with the carrier problem that moves and shake the default initialization reference azimuth generation deviation that is caused for years, and then promotes the reception and transmission quality of satellite-signal.
By the above-mentioned embodiment of the invention as can be known, the value on the true tool industry of the present invention.And above embodiment explanation only is preferred embodiment explanation of the present invention, and those skilled in the art are when doing other all improvement and variation according to the above embodiment of the present invention explanation.Yet all improvement and variation that these are done according to the embodiment of the invention are in the protection range of the claim that still belongs to invention spirit of the present invention and define.
Claims (40)
1. a satellite-signal control box is coupled at least one antenna that is set up in a carrier via a driving element, use drive this antenna direction be arranged in space a plurality of satellites one of at least, it is characterized in that this satellite-signal control box comprises:
One Drive and Control Circuit is coupled to this driving element, and receives the one scan drive signal and to drive this antenna space is scanned, and produces the one scan data according to this;
One microprocessor is coupled to this Drive and Control Circuit, this scan-data is parsed a co-ordinates of satellite at each these satellite place; And
One memory cell is coupled to this microprocessor, to write down these co-ordinates of satellite at these satellite places;
Wherein, when this microprocessor receives a locking signal, this microprocessor can capture this co-ordinates of satellite at least one locked person place in these satellites according to this locking signal, and send an antenna control signal to this Drive and Control Circuit according to this co-ordinates of satellite, make this Drive and Control Circuit export a drive signal, use at least one blocked satellite that drives in above-mentioned these satellites of this antenna direction to this driving element.
2. satellite-signal control box as claimed in claim 1 is characterized in that, more comprises an operation interface, and this operation interface is coupled to this microprocessor, uses when this operation interface is triggered, and transmits this scanning drive signal to this Drive and Control Circuit.
3. satellite-signal control box as claimed in claim 1 is characterized in that, this antenna is a digital satellite broadcasting (Digital Video Broadcasting-Satellite; DVB-S) antenna uses receiving at least one satellite-signal.
4. satellite-signal control box as claimed in claim 3 is characterized in that, this antenna be in a dish-like antenna and the plate type antenna one of at least.
5. satellite-signal control box as claimed in claim 1 is characterized in that, the antenna that is set up in this carrier also can comprise at least one DVB-S antenna and a DTB Digital Terrestrial Broadcasting (Digital Video Broadcasting-Terrestrial; DVB-T) combination of antenna.
6. satellite-signal control box as claimed in claim 1 is characterized in that, more comprises one digital satellite/terrestrial broadcasting (Digital Video Broadcasting-Satellite/Terrestrial; DVB-S/T) receiver, and this DVB-S/T receiver is respectively coupled to this microprocessor and this antenna.
7. satellite-signal control box as claimed in claim 6 is characterized in that, more comprises a DTB Digital Terrestrial Broadcasting (Digital Video Broadcasting-Terrestrial; DVB-T) reflector, and this DVB-T reflector is coupled to this DVB-S/T receiver, uses at least one DVB-T vision signal of emission and receives at least one Digital Television.
8. satellite-signal control box as claimed in claim 6 is characterized in that, more comprises an encoder (Encoder), and this encoder is respectively coupled to this microprocessor, this DVB-S/T receiver and this antenna.
9. satellite-signal control box as claimed in claim 6 is characterized in that, more comprises:
One control signal amplifier is coupled to this microprocessor, uses and amplifies the control signal that this microprocessor sent; And
One control signal drive circuit is respectively coupled to control signal amplifier, this DVB-S/T receiver and this antenna, uses according to this control signal and controls this DVB-S/T receiver.
10. satellite-signal control box as claimed in claim 1 is characterized in that, this microprocessor more is coupled to a satellite fix (Global Positioning System; GPS) system, and this gps system is coupled to a gps antenna, uses to obtain the satellite positioning coordinate that this carrier was positioned at, and transmit this antenna control signal according to this satellite positioning coordinate and this co-ordinates of satellite.
11. satellite-signal control box as claimed in claim 1, it is characterized in that, this microprocessor more is coupled to a carrier position sensor unit, uses a carrier orientation that obtains this carrier place, and transmits this antenna control signal according to this carrier orientation and this co-ordinates of satellite.
12. satellite-signal control box as claimed in claim 11 is characterized in that, this carrier orientation comprises a carrier azimuth and a carrier elevation angle, and this carrier position sensor unit more comprises:
One gyroscope is used this carrier azimuth that induces this carrier place; And
One gravity sensing element is used this carrier elevation angle that induces this carrier place.
13. satellite-signal control box as claimed in claim 1 is characterized in that, this memory cell more comprises:
One co-ordinates of satellite memory block is in order to write down these co-ordinates of satellite at these satellite places; And
One carrier coordinate memory block is in order to a carrier coordinate and a carrier orientation that writes down this carrier place.
14. satellite-signal control box as claimed in claim 1 is characterized in that, this driving element is a stepper motor.
15. an antenna system is set up in a carrier, and automatically lock according to a locking signal in a plurality of satellites in the space one of at least, this antenna system comprises:
At least one antenna;
One driving element is coupled to this antenna;
One Drive and Control Circuit is coupled to this driving element, and receives the one scan drive signal and to drive this antenna space is scanned, and produces the one scan data according to this;
One microprocessor is coupled to this Drive and Control Circuit, this scan-data is parsed a co-ordinates of satellite at each these satellite place; And
One memory cell is coupled to this microprocessor to write down these co-ordinates of satellite at these satellite places;
Wherein, when this microprocessor receives this locking signal, this microprocessor can capture this co-ordinates of satellite at least one blocked satellite place in these satellites according to this locking signal, and send an antenna control signal to this Drive and Control Circuit according to this co-ordinates of satellite, make this Drive and Control Circuit export a drive signal, use at least one blocked satellite that drives in above-mentioned these satellites of this antenna direction to this driving element.
16. antenna system as claimed in claim 15 is characterized in that, more comprises an operation interface, this operation interface is coupled to this microprocessor, uses when this operation interface is triggered, and transmits this scanning drive signal to this Drive and Control Circuit.
17. antenna system as claimed in claim 15 is characterized in that, this antenna is a digital satellite broadcasting (Digital Video Broadcasting-Satellite; DVB-S) antenna.
18. antenna system as claimed in claim 17 is characterized in that, this antenna be in a dish-like antenna and the plate type antenna one of at least.
19. antenna system as claimed in claim 15 is characterized in that this antenna more can comprise at least one DVB-S antenna and a DTB Digital Terrestrial Broadcasting (Digital Video Broadcasting-Terrestrial; DVB-T) combination of antenna, and this driving element is coupled to this DVB-S antenna.
20. antenna system as claimed in claim 15 is characterized in that, more comprise an action digital signal transceiver, and this action digital signal transceiver is coupled to this antenna.
21. antenna system as claimed in claim 20, it is characterized in that, more comprise a control signal treatment loop, and this control signal treatment loop comprises one and be coupled to this microprocessor control signal amplifier, use and amplify the control signal that this microprocessor sent.
22. antenna system as claimed in claim 21, it is characterized in that, this control signal treatment loop more comprises a control signal drive circuit, this control signal drive circuit is respectively coupled to this action digital signal transceiver, this control signal amplifier and this antenna, uses according to this control signal and controls this action digital signal transceiver.
23. antenna system as claimed in claim 15 is characterized in that, more comprises a satellite-signal treatment loop, and this satellite-signal treatment loop comprises a tuner that is coupled to this antenna, uses at least one satellite-signal that tuning this antenna receives.
24. antenna system as claimed in claim 23 is characterized in that, this satellite-signal treatment loop more comprises a decoder (Decoder) that is coupled to this tuner.
25. antenna system as claimed in claim 15 is characterized in that, more comprises:
One satellite fix (Global Positioning System; GPS) system is coupled to this microprocessor; And
One gps antenna is coupled to this gps system, uses to obtain the satellite positioning coordinate that this carrier was positioned at, and transmits this antenna control signal according to this satellite positioning coordinate and this co-ordinates of satellite.
26. antenna system as claimed in claim 15, it is characterized in that, more comprise a carrier position sensor unit, this carrier position sensor unit is coupled to this microprocessor, use a carrier orientation that obtains this carrier place, and transmit this antenna control signal according to this carrier orientation and this co-ordinates of satellite.
27. antenna system as claimed in claim 26 is characterized in that, this carrier orientation comprises a carrier azimuth and a carrier elevation angle, and this carrier position sensor unit more comprises:
One gyroscope is used this carrier azimuth that induces this carrier place; And
One gravity sensing element is used this carrier elevation angle that induces this carrier place.
28. antenna system as claimed in claim 15 is characterized in that, this memory cell more comprises:
One co-ordinates of satellite memory block is in order to write down these co-ordinates of satellite at these satellite places; And
One carrier coordinate memory block is in order to a carrier coordinate and a carrier orientation that writes down this carrier place.
29. antenna system as claimed in claim 15 is characterized in that, this driving element is a stepper motor.
30. a method of utilizing the scan-data locking satellite, be used for driving at least one aerial lock definiteness in a plurality of satellites that are distributed in space one of at least, the method includes the steps of:
(a) receive the one scan drive signal so that space is scanned, to produce the one scan data;
(b) this scan-data is parsed a co-ordinates of satellite at each these satellite place, and write down these co-ordinates of satellite at these satellite places;
(c) receive a locking signal, and capture this co-ordinates of satellite at least one blocked satellite place in these satellites according to this locking signal;
(d) send an antenna control signal according to this co-ordinates of satellite; And
(e) produce a drive signal to drive at least one locked person of this aerial lock definiteness in these satellites according to this antenna control signal.
31. the method for utilizing the scan-data locking satellite as claimed in claim 30 is characterized in that, this scan-data comprises a plurality of signal strength signal intensities that a plurality of scanning coordinate of this antenna direction is detected.
32. the method for utilizing the scan-data locking satellite as claimed in claim 31 is characterized in that, this step (b) more comprises a step (b1), and this step (b1) is used for judging whether these signal strength signal intensities of this scan-data possess at least one relative peak.
33. the method for utilizing the scan-data locking satellite as claimed in claim 32, it is characterized in that, this step (b) more comprises a step (b2), this step (b2) be this step (b1) be judged as be after, judge whether this relative peak is caused by at least one interference signal.
34. the method for utilizing the scan-data locking satellite as claimed in claim 33 is characterized in that, this step (b) more comprises a step (b3), and this step (b3) is after this step (b2) is judged as not, captures pairing this scanning coordinate of this relative peak.
35. the method for utilizing the scan-data locking satellite as claimed in claim 30, it is characterized in that, this antenna installation is on a carrier, this step (b) more comprises a step (b4), and this step (b4) receives a Kinematic Positioning signal, use a carrier coordinate that parses this antenna place, and this scanning coordinate that utilizes this step (b3) to be captured, calculate a co-ordinates of satellite at one of them place of these satellites.
36. the method for utilizing the scan-data locking satellite as claimed in claim 35 is characterized in that, this Kinematic Positioning signal is a global position system (Global Positioning System; GPS) Kinematic Positioning signal, and this carrier coordinate comprises a satellite positioning coordinate at this carrier place.
37. the method for utilizing the scan-data locking satellite as claimed in claim 35 is characterized in that, this Kinematic Positioning signal is a carrier orientation Kinematic Positioning signal, and this carrier coordinate comprises a carrier orientation at this carrier place.
38. the method for utilizing the scan-data locking satellite as claimed in claim 35 is characterized in that, this antenna control signal sends according to this co-ordinates of satellite and this carrier coordinate.
39. the method for utilizing the scan-data locking satellite as claimed in claim 30 is characterized in that, this antenna is a digital satellite broadcasting (Digital Video Broadcasting-Satellite; DVB-S) antenna.
40. the method for utilizing the scan-data locking satellite as claimed in claim 39 is characterized in that, this antenna be in a dish-like antenna and the plate type antenna one of at least.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200810130736 CN101630968A (en) | 2008-07-14 | 2008-07-14 | Method and antenna system for locking satellite by scanning data |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 200810130736 CN101630968A (en) | 2008-07-14 | 2008-07-14 | Method and antenna system for locking satellite by scanning data |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101916915A (en) * | 2010-08-04 | 2010-12-15 | 中国人民解放军第二炮兵工程学院 | Antenna beam tracking device and method of moving communication satellite communication system |
| US20150355334A1 (en) * | 2013-03-14 | 2015-12-10 | iHeartCommunications, Inc. | Location-based operational control of a transmitter |
| CN107885772A (en) * | 2017-09-29 | 2018-04-06 | 北京空间机电研究所 | A kind of dynamically changeable multiple data format satellite assistance data processing system |
-
2008
- 2008-07-14 CN CN 200810130736 patent/CN101630968A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101916915A (en) * | 2010-08-04 | 2010-12-15 | 中国人民解放军第二炮兵工程学院 | Antenna beam tracking device and method of moving communication satellite communication system |
| CN101916915B (en) * | 2010-08-04 | 2013-06-19 | 中国人民解放军第二炮兵工程学院 | Antenna beam tracking device and method of moving communication satellite communication system |
| US20150355334A1 (en) * | 2013-03-14 | 2015-12-10 | iHeartCommunications, Inc. | Location-based operational control of a transmitter |
| US10117067B2 (en) * | 2013-03-14 | 2018-10-30 | iHeartCommunications, Inc. | Location-based selection of a satellite transmitter of a vehicle |
| CN107885772A (en) * | 2017-09-29 | 2018-04-06 | 北京空间机电研究所 | A kind of dynamically changeable multiple data format satellite assistance data processing system |
| CN107885772B (en) * | 2017-09-29 | 2020-05-12 | 北京空间机电研究所 | Dynamic variable multi-data-format satellite auxiliary data processing system |
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