CN102354219B - Antenna controller for advanced broadcasting system-satellite (ABS-S) satellite signal mobile-satellite - Google Patents
Antenna controller for advanced broadcasting system-satellite (ABS-S) satellite signal mobile-satellite Download PDFInfo
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Abstract
The invention provides an antenna controller for an advanced broadcasting system-satellite (ABS-S) satellite signal mobile-satellite, and belongs to the technical field of antenna control of the mobile-satellite. The antenna controller solves the problems that the antenna controller cannot accurately identify an ABS-S standard satellite, is inconvenient for system upgrading, and complex in control and operation and the like in the prior art. The antenna controller is independent of a mobile-satellite antenna, is connected with the mobile-satellite antenna and a satellite receiver respectively, and comprises a main control circuit, a power supply management circuit, and a liquid crystal display (LCD) liquid crystal screen and a key circuit which are connected with the main control circuit respectively, wherein the power supply management circuit is connected with the main control circuit, supplies power to the main control circuit, and can convert input direct current voltage into required voltage; and the main control circuit can distinguish the voltage of the satellite receiver, and simultaneously the main control circuit normally communicates with the mobile satellite antenna and controls the mobile satellite antenna until a target satellite is locked. The antenna controller can accurately identify the ABS-S standard satellite, and is convenient for system upgrading and simple and convenient for control and operation.
Description
Technical field
The invention belongs to mobile satellite antenna control technology field, relate to a kind of mobile satellite antenna controller of ABS-S satellite-signal.
Background technology
No. nine satellites of culminant star adopt the ABS-S standard of China's independent research, are also the live telecast satellites of unique this standard of use in overhead, current equator.In mobile satellite antenna field, antenna is wanted automatic tracking satellite, first will identify accurately target satellite.At present the automatic star-seeking technology of international mature mainly relies on DVB demodulation mode to identify satellite, and satellite-signal that cannot demodulation ABS-S standard, to being used the also prematurity of satellite recognition technology of ABS-S standard.
Current mobile satellite antenna on the market, does not almost configure antenna controller, and all controls of antenna all concentrate on exterior aerial inside, and indoor unit only provides power supply, also cannot show the duty of antenna.Antenna occurs abnormal, is difficult to investigate; When system need to be upgraded, can only open antenna casing by professional, even the company of returning operates, very trouble.
People are also ceaselessly proposing various solutions for this reason, as Chinese patent literature discloses a kind of boat-carrying mobile satellite antenna control system that the patent No. is zl2010201495969, comprise the master control system being arranged between antenna and house subsystem, master control system can with the joining master controller of house subsystem, on master controller, be connected with antenna attitude administration module and signal management module.This master control system is reasonable in design, simple in structure, but also there is following deficiency in this system: 1, mobile satellite antenna relies on and follows the trail of specific transponder frequency to satellite maintenance locking, if the transponder parameter change of satellite, or there is other satellite to open the polarization mode transponder identical with frequency, will make the antenna cannot locking satellite or lock onto wrong satellite.At this moment just need to modify to the control parameter of antenna inside, native system leaves house subsystem, but because house subsystem does not have outside upgrade interface, can only take house subsystem shell apart, and using computer to upgrade to system by professional, troublesome poeration, wastes time and energy; Although 2, this boat-carrying mobile satellite antenna control system has overcome that tracking performance on boats and ships is unstable, the problem of easy lossing signal, inadequate to the satellite identification accuracy of ABS-S standard; 3, native system does not show the signal intensity of antenna, and the eliminating work for antenna failure has brought difficulty thus, and applicability declines.
Summary of the invention
The present invention is directed to existing technology and have the problems referred to above, a kind of mobile satellite antenna controller of ABS-S satellite-signal has been proposed, this antenna controller can carry out communication with mobile satellite antenna, show in real time the current duty of antenna, control mobile satellite antenna and accurately identify the satellite of ABS-S standard, and it is convenient to have system upgrade, the advantage that control operation is easy.
The present invention realizes by following technical proposal: a kind of mobile satellite antenna controller of ABS-S satellite-signal, it is characterized in that, this antenna controller is independent of outside mobile satellite antenna, be connected with satellite receiver with mobile satellite antenna respectively, comprise main control circuit, electric power management circuit, the LCD liquid crystal display and the key circuit that are connected with main control circuit respectively, electric power management circuit is connected with main control circuit and main control circuit is powered, described electric power management circuit can convert the DC voltage of input to required voltage, described main control circuit can be differentiated the voltage of satellite receiver, set up normal communication with mobile satellite antenna and control mobile satellite antenna until lock onto target satellite simultaneously.
The mobile satellite antenna controller of ABS-S satellite-signal can be independent of mobile satellite antenna and be arranged at indoor, after the mobile satellite antenna controller of ABS-S satellite-signal is opened, electric power management circuit provides required power supply to the mobile satellite antenna of other modules and outer connection in antenna controller, antenna controller enters normal starting state, antenna controller emission control parameter is to mobile satellite antenna, mobile satellite antenna receives to be controlled parameter and parameter is preserved, send answer signal to antenna controller simultaneously, antenna controller receives answer signal and judges, replying the correct mobile satellite antenna controller of ABS-S satellite-signal can normally start.Meanwhile, LCD liquid crystal display shows normal boot-strap picture.Antenna controller starts to detect the voltage of satellite receiver subsequently, and according to testing result sending controling instruction to mobile satellite antenna.After mobile satellite antenna settling signal receives, send answer signal to the main control circuit of antenna controller, main control circuit judges whether the transmission of information is normally carried out simultaneously.Main control circuit sends control information to mobile satellite antenna thus, and mobile satellite antenna brings into operation after receiving control signal, locking satellite.And running state information is sent to antenna controller in real time, and antenna controller judges whether current locking satellite is target satellite, LCD liquid crystal display shows the antenna running state information that antenna controller receives simultaneously.
In the mobile satellite antenna controller of above-mentioned ABS-S satellite-signal, described main control circuit comprises main control unit MPU, the satellite-signal demodulator circuit being connected with main control unit MPU respectively, control signal modulation-demodulation circuit and voltage identification circuit, described satellite-signal demodulator circuit is connected with above-mentioned mobile satellite antenna respectively with control signal modulation-demodulation circuit, and described voltage identification circuit is connected with above-mentioned satellite receiver.
By the supply voltage of voltage identification circuit identification satellite receiver, main control unit MPU reads analog voltage information and digitized processing is digital signal, the information command that digital signal becomes mobile satellite antenna to identify after the modulation /demodulation of control signal modulation-demodulation circuit, being moved satellite antenna receives, mobile satellite antenna is selected different polarization modes according to the supply voltage of receiver, thereby accurately receives the satellite-signal that satellite receiver needs.
Mobile satellite antenna automatic search satellite, after locking satellite, signal demodulating circuit sends the discernible instruction of main control unit MPU to main control unit MPU via satellite, MPU receives after instruction, control satellite-signal demodulator circuit the satellite-signal receiving is carried out to demodulation process, and then judge whether the satellite of current locking is target satellite.
In the mobile satellite antenna controller of above-mentioned ABS-S satellite-signal, between described mobile satellite antenna and the DC power supply terminal of electric power management circuit, by concentric cable, connect, and between the control module of mobile satellite antenna and above-mentioned control signal modulation-demodulation circuit, by coupling capacitance, use above-mentioned concentric cable to be connected and carry out half duplex communication.Concentric cable plays the effect of communication, antenna power supply and the transmitting satellite TV signal of antenna controller and mobile satellite antenna.Antenna controller and mobile satellite antenna directly realize half duplex communication, can not on both direction, carry out communication simultaneously, must one after the other carry out.Antenna power supply is completed by concentric cable simultaneously, plays simplification circuit, designs succinct object.
In the mobile satellite antenna controller of above-mentioned ABS-S satellite-signal, described satellite-signal demodulator circuit comprises tuner and detuner, between tuner and detuner and between detuner and main control unit MPU, by I2C Bus, connect respectively, described tuner can receive the first intermediate frequency satellite-signal and the first intermediate frequency satellite-signal that receives is changed into the second intermediate-freuqncy signal, and described main control unit MPU is by I2C Bus read signal judge whether the signal of current reception belongs to target satellite from detuner.
When mobile satellite antenna is according to after the information command locking satellite of main control unit MPU, mobile satellite antenna sends instruction to main control unit MPU, requires main control unit MPU to judge the satellite of current locking.Main control unit MPU arranges the register parameters in tuner and detuner by I2C Bus, writes the parameters such as target satellite frequency, symbol.Tuner receives the first intermediate frequency satellite-signal, and from the first intermediate frequency satellite-signal, selects the signal that wish is received, and carries out exporting the second intermediate-freuqncy signal with oscillation signals according mixing after tuning amplification.This second intermediate-freuqncy signal is received by detuner, and detuner recovers raw baseband signal the second intermediate-freuqncy signal through channel-decoding, and obtains current signal quality and lock-out state.Main control unit MPU reads current signal quality and lock-out state by I2C Bus, thereby to judging whether current satellite is target satellite.
In the mobile satellite antenna controller of above-mentioned ABS-S satellite-signal, described detuner adopts the demodulation chip GK5109 of ABS-S channel.Demodulation chip GK5109 can carry out demodulation to the satellite-signal of ABS-S standard, thereby can identify ABS-S standard satellite.
In the mobile satellite antenna controller of above-mentioned ABS-S satellite-signal, described control signal modulation-demodulation circuit comprises modulation circuit and demodulator circuit, between described demodulator circuit and main control unit MPU, be connected with one for control half duplex communication with door, the digital signal that described modulation circuit can go out the TX human hair combing waste of main control unit MPU is transported to concentric cable and is input in mobile satellite antenna after modulating, the RX pin that described demodulator circuit can carry out demodulation and be input to main control unit MPU the digital signal of mobile satellite antenna modulation treatment is verified judgement.
Main control unit MPU goes out steering order by TX human hair combing waste, command signal is modulated through overmodulated circuit, and the command signal after modulation is carried through concentric cable, being moved satellite antenna decoding receives, after the once command signal that mobile satellite antenna successfully receives, send an answer signal, answer signal sends through mobile satellite antenna inner modulation, after detuner demodulation, by the RX pin of main control unit MPU, received, main control unit MPU judges that with this answer signal whether information transmission is wrong, be that the correct rear mobile satellite antenna of controlling of information that main control unit MPU checking sends is carried out work.The half duplex communication that transmits control signal and carry out when validation signal two-way communication line is different respectively.
In the mobile satellite antenna controller of above-mentioned ABS-S satellite-signal, described voltage identification circuit comprises the resistance in series of the voltage of satellite receiver output being carried out to dividing potential drop, resistance in series is connected with main control unit MPU, the voltage that described main control unit MPU can receive resistance in series input carries out judging current voltage state after digitized processing, and the steering order of this voltage status of TX pin contribute by main control unit MPU sends to mobile satellite antenna, mobile satellite antenna is powered to tuner according to this steering order.The signal that the tuner of mobile satellite antenna sends is the first satellite intermediate frequency signal.
In the mobile satellite antenna controller of above-mentioned ABS-S satellite-signal, described mobile satellite antenna controller also comprises the SD card interface being connected with main control unit MPU, described main control unit can identify SD card be inserted into SD card interface in time the program that copies in SD card carry out system program upgrading.
Compared with prior art, the mobile satellite antenna controller of this ABS-S satellite-signal has following advantage:
1, the mobile satellite antenna controller of this ABS-S satellite-signal carries out communication by Channel Modulation, transmission, demodulation and mobile satellite antenna, and can control the setting of mobile satellite antenna to satellite locking and important parameter, through LCD liquid crystal display, show in real time duty and the signal intensity that antenna is current simultaneously, control operation is easy, safeguard that investigation work is simple and convenient, applicability is strong.
2, in the mobile satellite antenna controller of this ABS-S satellite-signal, there is the SD card interface being connected with main control unit MPU, can identify SD card and be inserted into SD card interface, copy the original program of programming overlay in SD card simultaneously, there is system upgrade function easily.
That 3, the mobile satellite antenna controller of this ABS-S satellite-signal uses is the demodulation chip GK5109 of ABS-S channel, can control the satellite that mobile satellite antenna is accurately identified ABS-S standard.Reduce the identification difficulty of ABS-S standard satellite, improve identification accuracy.
Accompanying drawing explanation
Fig. 1 is the mobile satellite antenna controller circuitry schematic diagram of ABS-S satellite-signal.
Fig. 2 is that the mobile satellite antenna director demon of ABS-S satellite-signal is controlled schematic diagram.
In figure 1, electric power management circuit; 2, main control circuit; 021, main control unit MPU; 022, control signal modulation-demodulation circuit; 023, voltage identification circuit; 024, satellite-signal demodulator circuit; 0241 detuner; 0242 tuner; 3, key circuit; 4, LCD liquid crystal display; 5, SD card interface; 6, mobile satellite antenna; 7, satellite receiver; 8, televisor; 9, antenna controller.
Embodiment
Be below specific embodiments of the invention by reference to the accompanying drawings, technical scheme of the present invention is further described, but the present invention be not limited to these embodiment.
Embodiment mono-
As shown in Figure 1, the mobile satellite antenna controller 9 of this ABS-S satellite-signal, be independent of outside mobile satellite antenna 6, be connected with satellite receiver 7 with mobile satellite antenna 6 respectively, comprise main control circuit 2, electric power management circuit 1, the LCD liquid crystal display 4 being connected with main control circuit 2 respectively and key circuit 3.Main control circuit 2 comprises main control unit MPU021, the satellite-signal demodulator circuit 024 being connected with main control unit MPU021 respectively, control signal modulation-demodulation circuit 022 and voltage identification circuit 023, also comprises the SD card interface 5 being connected with main control unit MPU021.Satellite-signal demodulator circuit 024 is connected with mobile satellite antenna 6 respectively with control signal modulation-demodulation circuit 022.Satellite-signal demodulator circuit 024 comprises tuner 0242 and detuner 0241, between tuner 0242 and detuner 0241 and between detuner 0241 and main control unit MPU021, connect respectively by I2C Bus, the signal that the tuner of mobile satellite antenna 6 sends is the first satellite intermediate frequency signal.Tuner 0242 can receive the first intermediate frequency satellite-signal and the first intermediate-freuqncy signal of receiving from changing the second intermediate-freuqncy signal into, main control unit MPU021 is by I2C Bus read signal judge whether the signal of current reception belongs to target satellite from detuner 0241.
Main control unit MPU021 can insert SD card interface 5 at identification SD card, and the program simultaneously copying in SD card is carried out system program upgrading.Detuner 0241 adopts the demodulation chip GK5109 of ABS-S channel.Voltage identification circuit 023 is connected with satellite receiver 7, and voltage identification circuit 023 comprises the resistance in series of the voltage of satellite receiver 7 outputs being carried out to dividing potential drop, and resistance in series is connected with main control unit MPU021.The voltage that main control unit MPU021 can receive resistance in series input carries out judging current voltage state after digitized processing, and the steering order of this voltage status of TX pin contribute by main control unit MPU021 sends to mobile satellite antenna 6, mobile satellite antenna 6 is powered to tuner according to this steering order, and different supply voltages makes the different polarization modes of tuner work.
Electric power management circuit 1 is connected with main control circuit 2 and main control circuit 2 is powered, between the DC power supply terminal of mobile satellite antenna 6 and electric power management circuit 1, by concentric cable, connect, and by coupling capacitance, with concentric cable, be connected and carry out half duplex communication between the control module of mobile satellite antenna 6 and control signal modulation-demodulation circuit 022.Electric power management circuit 1 can convert 10V～30V DC voltage of input to required voltage, main control circuit 2 can be differentiated the voltage of satellite receiver 7, sets up normal communication and controls mobile satellite antenna 6 until lock onto target satellite with mobile satellite antenna 6 simultaneously.
Main control unit MPU021 is used ATmega64A single-chip microcomputer, completes the control and management of unit, and is responsible for and mobile satellite antenna 6 is carried out communication.Electric power management circuit 1 provides required power supply to the mobile satellite antenna 6 of antenna controller 9 interior other modules and outer connection, antenna controller 9 enters normal starting state, antenna controller 9 emission control parameters are to mobile satellite antenna 6, mobile satellite antenna 6 receives to be controlled parameter and parameter is preserved, send answer signal to antenna controller 9 simultaneously, antenna controller 9 receives answer signal and judges, until verification is correct, mobile satellite antenna 6 controllers of ABS-S satellite-signal can normally start.Meanwhile, LCD liquid crystal display 4 shows normal boot-strap picture.
Antenna controller 9 is by the supply voltage of voltage identification circuit 023 identification satellite receiver 7 subsequently, main control unit MPU021 reads analog voltage information and digitized processing is digital signal, main control unit MPU021 judges current magnitude of voltage according to this digital signal, and send corresponding steering order, steering order is modulated through overmodulated circuit, digital signal after modulation is carried through concentric cable, and the digital signal after main control circuit 2 is processed is moved satellite antenna 6 decodings and receives.After the steering order that mobile satellite antenna 6 receives success, generation after digital signal negate is replied to instruction sends through mobile satellite antenna 6 inner modulation, by being received by main control unit MPU021 after the demodulator circuit demodulation in control signal modulation-demodulation circuit 022, simultaneously whether main control circuit 2 is got the transmission of replying instruction with this and is normally carried out.Be that the correct rear mobile satellite antenna 6 of controlling of information that main control unit MPU021 checking sends is carried out work.Concentric cable plays the effect of communication, antenna power supply and the transmitting satellite TV signal of antenna controller 9 and mobile satellite antenna 6.Antenna controller 9 and mobile satellite antenna 6 realize half duplex communication, can not on both direction, carry out communication simultaneously, must one after the other carry out.
Main control circuit 2 is given mobile satellite antenna 6 sending controling instructions, and mobile satellite antenna 6 brings into operation after receiving steering order, locking satellite.When mobile satellite antenna 6 is according to after the steering order locking satellite of main control unit MPU021, mobile satellite antenna 6 sends instruction to main control unit MPU021, requires main control unit MPU021 to judge the satellite of current locking.Main control unit MPU021 arranges the register parameters in tuner 0242 and detuner 0241 by I2C Bus after receiving this instruction, writes the parameters such as target satellite frequency, symbol.The first intermediate frequency satellite-signal that tuner 0242 receives from mobile satellite antenna 6, tuner 0242 comprises prime amplifier, frequency converter, phaselocked loop, bandpass filter, intermediate frequency amplifier, agc circuit and phase shifter, is used for receiving the first intermediate frequency satellite-signal input.Tuner 0242 is the tuning signal of selecting wish receipts from the first intermediate frequency satellite-signal, carries out exporting the second intermediate-freuqncy signal with oscillation signals according mixing after tuning amplification.This second intermediate-freuqncy signal is received by detuner 0241, and detuner 0241 recovers raw baseband signal the second intermediate-freuqncy signal through channel-decoding, and obtains current demand signal quality and lock-out state.
Main control unit MPU021 reads current demand signal quality and lock-out state by I2C Bus, thereby the satellite of current locking is judged.Demodulation chip GK5109 can carry out demodulation to the satellite-signal of ABS-S standard, thereby can identify ABS-S standard satellite.LCD liquid crystal display 4 can show the duty of antenna and current signal intensity in real time.
SD card inserts the SD card interface 5 being connected with main control unit MPU021 and plays the effect of antenna controller 9 softwares being carried out to quick upgrading.In main control unit MPU021, with boot, after system boot, when main control unit MPU021 has identified SD card, insert, enter system upgrade pattern, from SD card program of file copy, cover original program, after having copied, from program area, start to carry out.For the control system upgrading of mobile satellite antenna 6 inside provides conveniently interface, facilitate the mobile satellite antenna system upgrade in the fishing boat of ocean operation, the capability improving of opposing risk simultaneously.
Satellite receiver 7 is switched the change that realizes the Research of Antenna Polarization by voltage.The function of key circuit 3 is that the important parameter of mobile satellite antenna 6 is arranged, and makes mobile satellite antenna 6 remain on best duty.On the panel of key circuit 3, have three button S1, S2, S3, in the time of start, pin S1, can enter button pattern is set.Button arranges in pattern, can arrange mobile satellite antenna 6 locking frequencies, when the satellite repeater of antenna locking is closed, can select other transponder to lock; The polarization mode that can control the locking of mobile satellite antenna 6 arranges, and makes antenna locking anticlockwise hair device or right rotation hair device; Can arrange the satellite-signal threshold value of mobile satellite antenna 6 identifications, select suitable threshold value, avoid to greatest extent potential signal to disturb.
Above mobile satellite antenna 6 adopts the tuner of dual outputs to realize, and a road satellite-signal is controlled for mobile satellite antenna 6 lockings, and operating voltage is sent by antenna controller 9, and left-handed/dextrorotation is controlled parameter and determined; Another road is transferred to antenna controller 9 and satellite receiver 7, and the voltage that operating voltage is exported by receiver determines.The tuner output signal of mobile satellite antenna 6 is the first intermediate frequency satellite-signal.
As shown in Figure 1, 2, after the mobile satellite antenna controller of ABS-S satellite-signal is opened, electric power management circuit 1 is powered for other each circuit of system.This electric power management circuit 1 comprises input voltage range DC10V～30V, the power panel power supply of output 30V and 3.3V is used for 30V voltage and 3.3V voltage to change with being arranged on master control borad, obtain the control power supply of 5V and 1.2V voltage, wherein 5V, 3.3V, 1.2V voltage are antenna controller 9 power supplies, and 30V is mobile satellite antenna 6 power supplies.If antenna controller 9 detects in the groove of current SD card interface 5, there is SD card to insert, enter SD upgrade mode.If SD card do not detected, or upgrade and finish automatically to carry out next step, if now Menu key is pressed, enters parameter pattern is set.Now can control parameter to mobile satellite antenna 6 and arrange, after having arranged, necessary powered-down, just can exit parameter pattern is set.
If Menu key is not pressed, antenna controller 9 enters normal starting state.Main control unit MPU021 in antenna controller 9 starts emission control parameter to mobile satellite antenna 6, mobile satellite antenna 6 is kept at memory block by parameter after receiving and controlling parameter, and send answer signal to antenna controller 9, antenna controller 9 receives answer signal and judges, if reply mistake, continue to send control parameter, until reply correct.Now antenna controller 9 has normally started, and meanwhile, LCD liquid crystal display 4 shows start-up picture.
Antenna controller 9 detects the voltage of satellite receiver 7 subsequently, take 15.5V as benchmark, the unified 13V that is judged to be of voltage main control unit MPU021 lower than 15.5V, voltage unification higher than 15.5V is judged to be 18V, judge and finish, main control unit MPU021 sends the steering order of the voltage status of current judgement by TX pin, steering order produces the AC signal of amplifying through overmodulated circuit, by concentric cable, be transferred to mobile satellite antenna 6, through mobile satellite antenna 6 Interior Solutions demodulation circuits, again controlled instruction, is moved satellite antenna 6 and receives.Mobile satellite antenna 6 will produce answer signal according to the steering order receiving, after ovennodulation, transmission, demodulation, by the RX pin of main control unit MPU021, received, the answer signal that main control unit MPU021 receives with this judges whether information transmission occurs mistake.Be that the correct rear mobile satellite antenna 6 of controlling of information that main control unit MPU021 checking sends is carried out work.As occurred, mistake can send again, until data send successfully.
Mobile satellite antenna 6 starts to start after receiving steering orders, and by system startup, sensor calibration, connect satellite, the status information such as locking satellite sends to antenna controller 9 in real time by control signal modulation-demodulation circuit 022.Antenna controller 9 reception information, and show on LCD liquid crystal display 4.When antenna controller 9 receives the information from the locked satellite of mobile satellite antenna 6, through 9 pairs of satellite-signals of antenna controller, verify, judge that current locking satellite is target satellite.Main control unit MPU021 arranges the register parameters in tuner 0242 and detuner 0241 by I2C communication, writes the parameter such as frequency, symbol rate of target satellite.Complete setting parameter, 0241 pair of satellite-signal receiving of the tuned circuit 0242 of satellite-signal demodulator circuit 024 and demodulator circuit carries out channel demodulation.Demodulation completes, main control unit MPU021 again by I2C communication judge whether the frequency of Set For Current and symbol rate information are locked, synchronous.If locking, synchronously success, antenna controller 9 sends confirms instruction, shows current signal intensity simultaneously, the tracking lock that mobile satellite antenna 6 keeps current satellite; If locking or synchronization failure, antenna controller 9 sends denies instruction, and mobile satellite antenna 6 systems are adjusted the elevation angle of antenna pot, re-start search, until lock onto target satellite.
After mobile satellite antenna 6 lock onto target satellites, antenna controller 9 is still constantly identified the voltage of satellite receiver 7, once recognize voltage, switches, and resends steering order to antenna system, and antenna system is adjusted in time.Satellite receiver 7 receives the satellite TV signal that mobile satellite antenna 6 receives simultaneously, and sends to televisor 8 to play decoded video, sound signal.
Embodiment bis-
The content of embodiment bis-is basic identical with embodiment mono-, difference is that some receiver possesses digital satellite equipment and controls (Digital Satellite Equipment), can in 22KHz frequency, replace the digital signal serial transfer relevant control instruction changing.DiSEqC testing circuit can carry out filtering, amplification by 22K square-wave signal simultaneously, then passes to main control unit MPU021 and carries out steering order identification.This DiSEqC testing circuit is equal to the voltage identification circuit 023 with above-described embodiment one.
Specific embodiment described herein is only to the explanation for example of the present invention's spirit.Those skilled in the art can make various modifications or supplement or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present invention or surmount the defined scope of appended claims.
Although more used the terms such as electric power management circuit 1, main control circuit 2, main control unit MPU021, control signal modulation-demodulation circuit 022, voltage identification circuit 023, satellite-signal demodulator circuit 024, key circuit 3, LCD liquid crystal display 4, SD card interface 5, mobile satellite antenna 6, satellite receiver 7, televisor 8 herein, do not got rid of the possibility of using other term.Use these terms to be only used to describe more easily and explain essence of the present invention; They are construed to any additional restriction is all contrary with spirit of the present invention.
Claims (7)
1. the mobile satellite antenna controller of an ABS-S satellite-signal, it is characterized in that, this antenna controller (9) is independent of outside mobile satellite antenna (6) and is arranged at indoor, be connected with satellite receiver (7) with mobile satellite antenna (6) respectively, comprise main control circuit (2), electric power management circuit (1), the LCD liquid crystal display (4) being connected with main control circuit (2) respectively and key circuit (3), electric power management circuit (1) is connected with main control circuit (2) and main control circuit (2) is powered, described electric power management circuit (1) can convert the DC voltage of input to required voltage, described main control circuit (2) can be differentiated the voltage of satellite receiver (7), set up normal communication and control mobile satellite antenna (6) until lock onto target satellite with mobile satellite antenna (6) simultaneously, after mobile satellite antenna (6) lock onto target satellite, antenna controller (9) is still constantly identified the voltage of satellite receiver (7), once recognizing voltage switches, resend steering order to antenna system, antenna system is adjusted in time, main control circuit (2) comprises main control unit MPU (021), mobile satellite antenna (6) is according to main control unit MPU(021) steering order locking satellite after, mobile satellite antenna (6) sends instruction to main control unit MPU (021), require main control unit MPU (021) to determine whether target satellite to the satellite of current locking, described main control circuit (2) also comprises respectively and main control unit MPU(021) the satellite-signal demodulator circuit (024) that is connected, control signal modulation-demodulation circuit (022) and voltage identification circuit (023), described satellite-signal demodulator circuit (024) is connected with above-mentioned mobile satellite antenna (6) respectively with control signal modulation-demodulation circuit (022), described voltage identification circuit (023) is connected with above-mentioned satellite receiver (7), on the panel of described key circuit (3), there is button S1, in the time of start, pin S1, can enter button pattern is set, described button arranges in pattern, can arrange mobile satellite antenna (6) locking frequency, when the satellite repeater of antenna locking is closed, can select other transponder to lock, the polarization mode that can control the locking of mobile satellite antenna (6) arranges, and makes antenna locking anticlockwise hair device or right rotation hair device, can arrange the satellite-signal threshold value of mobile satellite antenna (6) identification, select suitable threshold value, avoid to greatest extent potential signal to disturb.
2. the mobile satellite antenna controller of ABS-S satellite-signal according to claim 1, it is characterized in that, between the DC power supply terminal of described mobile satellite antenna (6) and electric power management circuit (1), by concentric cable, connect, and between the control module of mobile satellite antenna (6) and above-mentioned control signal modulation-demodulation circuit (022), by coupling capacitance, use above-mentioned concentric cable to be connected and carry out half duplex communication.
3. the mobile satellite antenna controller of ABS-S satellite-signal according to claim 2, it is characterized in that, described satellite-signal demodulator circuit (024) comprises tuner (0242) and detuner (0241), between tuner (0242) and detuner (0241) and detuner (0241) and main control unit MPU(021) between by I2C Bus, connect respectively, described tuner (0242) can receive the first intermediate frequency satellite-signal and the first intermediate frequency satellite-signal receiving is changed into the second intermediate-freuqncy signal, described main control unit MPU(021) by I2C Bus read signal judge whether the signal of current reception belongs to target satellite from detuner (0241).
4. the mobile satellite antenna controller of ABS-S satellite-signal according to claim 3, is characterized in that, described detuner (0241) adopts the demodulation chip GK5109 of ABS-S channel.
5. according to the mobile satellite antenna controller of the ABS-S satellite-signal described in claim 2 or 3 or 4, it is characterized in that, described control signal modulation-demodulation circuit (022) comprises modulation circuit and demodulator circuit, described demodulator circuit and main control unit MPU(021) between be connected with one for control half duplex communication with door, described modulation circuit can be by main control unit MPU(021) the digital signal that goes out of TX human hair combing waste be transported to concentric cable and be input in mobile satellite antenna (6) after modulating, described demodulator circuit can carry out demodulation and be input to main control unit MPU(021 the digital signal of mobile satellite antenna (6) modulation treatment) RX pin verify judgement.
6. according to the mobile satellite antenna controller of the ABS-S satellite-signal described in claim 1 or 2 or 3 or 4, it is characterized in that, described voltage identification circuit (023) comprises the resistance in series of the voltage of satellite receiver (7) output being carried out to dividing potential drop, resistance in series and main control unit MPU(021) be connected, the voltage that described main control unit MPU(021) can receive resistance in series input carries out judging current voltage state after digitized processing, and by main control unit MPU(021) the steering order of this voltage status of TX pin contribute send to mobile satellite antenna (6), mobile satellite antenna (6) is powered to tuner according to this steering order.
7. according to the mobile satellite antenna controller of the ABS-S satellite-signal described in claim 1 or 2 or 3 or 4, it is characterized in that, described mobile satellite antenna controller also comprises and main control unit MPU(021) the SD card interface (5) that is connected, described main control unit MPU(021) can identify SD card be inserted into SD card interface (5) in time the program that copies in SD card carry out system program upgrading.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110146600.5A CN102354219B (en) | 2011-06-01 | 2011-06-01 | Antenna controller for advanced broadcasting system-satellite (ABS-S) satellite signal mobile-satellite |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110146600.5A CN102354219B (en) | 2011-06-01 | 2011-06-01 | Antenna controller for advanced broadcasting system-satellite (ABS-S) satellite signal mobile-satellite |
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| Publication Number | Publication Date |
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| CN102354219A CN102354219A (en) | 2012-02-15 |
| CN102354219B true CN102354219B (en) | 2014-04-16 |
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| CN102723602B (en) * | 2012-06-29 | 2014-07-02 | 深圳市九洲电器有限公司 | Automatic satellite finding method and satellite finding device |
| CN104122897A (en) * | 2014-07-07 | 2014-10-29 | 江苏中寰卫星导航通信有限公司 | Satellite signal auto-tracker |
| CN104811257A (en) * | 2014-10-29 | 2015-07-29 | 深圳市同洲电子股份有限公司 | Test system and method of satellite receiver |
| CN105337655B (en) * | 2015-10-21 | 2018-12-04 | 北京华胜天成信息技术发展有限公司 | A kind of satellite confirmation method, controller and satellite confirm system |
| CN105703820A (en) * | 2016-01-08 | 2016-06-22 | 山东超越数控电子有限公司 | Device and system of realizing computer satellite communication |
| CN106685519A (en) * | 2017-03-09 | 2017-05-17 | 北京爱科迪通信技术股份有限公司 | Satellite finding system and method based on power detector |
| CN108897244B (en) * | 2018-07-05 | 2020-03-17 | 北京星网卫通科技开发有限公司 | Control system of antenna control unit |
| CN110011717B (en) * | 2019-01-28 | 2022-04-22 | 中国电子科技集团公司电子科学研究院 | Satellite-borne networked management and control system |
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