CN205430522U - Unmanned aerial vehicle maritime affairs voice communication system - Google Patents
Unmanned aerial vehicle maritime affairs voice communication system Download PDFInfo
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- CN205430522U CN205430522U CN201521068500.5U CN201521068500U CN205430522U CN 205430522 U CN205430522 U CN 205430522U CN 201521068500 U CN201521068500 U CN 201521068500U CN 205430522 U CN205430522 U CN 205430522U
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Abstract
The utility model provides an unmanned aerial vehicle maritime affairs voice communication system, this system includes frequency modulation equipment, maritime affairs radio station transceiver, line of sight link receiving and dispatching combination, ground satellite station and maritime affairs radio station ground speech control terminal, frequency modulation equipment and maritime affairs radio station transceiver carry out voice communication in 156.000MHz~173.975MHz frequency channel, maritime affairs radio station transceiver, line of sight link receiving and dispatching combination, signal between ground satellite station and the maritime affairs radio station ground speech control terminal is communicated with the RS422 form. The utility model discloses a with the speech conversation by the rescue ship, the circumstances of understanding rescue ship accessible time.
Description
Technical field
This utility model relates to field of wireless communications, especially relates to a kind of unmanned plane maritime affairs voice communication system.
Background technology
Unmanned plane, during carrying out maritime search and rescue, needs ground command center to be carried out Speech Communication with marine by rescue ship.Being equipped with maritime affairs radio station by rescue ship, working frequency range is frequency modulation communication in 156MHz～174MHz, and is not loaded in the maritime affairs radio station communicated on unmanned plane on domestic and international market, therefore cannot realize command centre and by the communication between rescue ship.
Utility model content
The purpose of this utility model is: the problem existed for prior art, it is provided that a kind of unmanned plane maritime affairs voice communication system, the communication issue that solution command centre and sea are rescued between ship.
Utility model purpose of the present utility model is achieved through the following technical solutions:
A kind of unmanned plane maritime affairs voice communication system, it is characterized in that, this system includes that the transmitting-receiving combination of frequency modulation equipment, maritime affairs radio station transceiver, line of sight link, earth station and maritime affairs radio station ground based voice control terminal, frequency modulation equipment and maritime affairs radio station transceiver carry out Speech Communication in 156.000MHz～173.975MHz frequency range, and the signal that the transmitting-receiving combination of maritime affairs radio station transceiver, line of sight link, earth station and maritime affairs radio station ground based voice control between terminal communicates with RS422 form.
As further technical scheme, described maritime affairs radio station transceiver includes audio board, power panel, transmitting modulation panel, power board and RF front-end module, described power panel is used for providing power supply, described transmitting modulation panel, power board and RF front-end module to be connected with audio board respectively.
As further technical scheme, described audio board includes A/D sampling A/D chip, phonetic codec chip, SCM&FPGA chip；The audio input signal of RF front-end module, after A/D sampling A/D chip, is sent to phonetic codec chip and encodes；The frequency word that signal after phonetic codec chip coding and single-chip microcomputer send over is recombinated by fpga chip, is then sent to line of sight link transmitting-receiving combination.
As further technical scheme, described transmitting modulation panel includes wave filter and manipulator.
As further technical scheme, described RF front-end module includes band filter, LNA, power splitter, electrically tunable filter, frequency mixer, intermediate-frequency filter, intermediate frequency demodulation chip, frequency synthesizer and fsk demodulator, described band filter is sequentially connected with LNA, power splitter, electrically tunable filter, frequency mixer, intermediate-frequency filter, intermediate frequency demodulation chip, frequency synthesizer is connected with frequency mixer, and power splitter is connected with fsk demodulator.
As further technical scheme, described power board includes low pass filter, attenuator, prime power amplifier module, final stage power amplifier module and transmits/receives switch, one end of low pass filter is connected with the frequency mixer of RF front-end module, the other end is sequentially connected with attenuator, prime power amplifier module, final stage power amplifier module, and final stage power amplifier module is connected with the band filter of RF front-end module by transmitting/receiving switch
As further technical scheme, described maritime affairs radio station ground based voice controls terminal and includes that PC controls terminal and voice modulation solution tuned plate, PC controls terminal and passes FREQUENCY CONTROL order mutually by fpga chip in serial ports and voice modulation solution tuned plate, and voice modulation solution tuned plate speech signal carries out encoding and decoding process.
As further technical scheme, described voice modulation solution tuned plate includes speech processing module, A/D sampling A/D chip, phonetic codec chip and fpga chip, described speech processing module is connected with A/D sampling A/D chip, phonetic codec chip and fpga chip successively, fpga chip is connected with earth station, and speech processing module is connected with microphone loudspeaker.
Compared with prior art, this utility model has the advantage that
1, speech coding channel takies low: according to actual service condition, maritime affairs radio station code rate not can exceed that 2.4K, so, select the chip of 2k code rate, according to the serial communication protocol with line of sight link transmitting-receiving combination, it is sent to line of sight link transmitting-receiving combination with 115200bps speed.
2, owing to have employed the technical program, it is achieved that converse with by sound if rescue ship, the situation of rescue ship can be understood timely.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model；
Fig. 2 is maritime affairs radio station transceiver audio board theory diagram；
Fig. 3 is the structural representation of maritime affairs radio station transceiver；
Fig. 4 is that maritime affairs radio station ground based voice controls terminal theory diagram.
Detailed description of the invention
With specific embodiment, this utility model is described in detail below in conjunction with the accompanying drawings.
Embodiment
This utility model provides a kind of unmanned plane maritime affairs voice communication system, as it is shown in figure 1, consist of the following components: the transmitting-receiving combination of frequency modulation equipment, maritime affairs radio station transceiver, line of sight link, earth station and maritime affairs radio station ground based voice control terminal.Frequency modulation equipment uses conventional frequency modulation equipment, and during application, this equipment is placed on ship.Maritime affairs radio station transceiver can carry out Speech Communication with conventional frequency modulation equipment in 156.000MHz～173.975MHz frequency range, when receiving the signal that frequency modulation equipment sends, the audio signal of its demodulation, after digitized processing, passes to the line of sight link transmitting-receiving combination being arranged on unmanned plane with RS422 form.The RS422 signals revivification that earth station is transmitted by the terminal that controls maritime affairs radio station ground based voice is voice signal and display radio mode.After ground staff sends voice commands and controls operating frequency, maritime affairs radio station ground based voice controls terminal and issues earth station with RS422 form.Maritime affairs radio station transceiver receives the RS422 signal that line of sight link transmitting-receiving combination is transmitted, and launches in this voice commands frequency modulation is amplified in 156.000MHz～173.975MHz frequency range.
The structure of maritime affairs radio station transceiver as shown in Figure 2 and Figure 3, including audio board, power panel, transmitting modulation panel, power board and RF front-end module.Wherein:
Audio board: include A/D sampling A/D chip, phonetic codec chip, SCM&FPGA chip；The audio input signal of RF front-end module, after A/D sampling A/D chip, is sent to phonetic codec chip and encodes；The frequency word that signal after phonetic codec chip coding and single-chip microcomputer send over is recombinated by fpga chip, is then sent to line of sight link transmitting-receiving combination.Continuation is controlled RF front-end module by single-chip microcomputer, launches modulation panel, power board.Fpga chip, as the main control unit of transceiver, carries out agreement exchange with line of sight link transmitting-receiving combination, carries out transceiver receiving and dispatching control.
Power panel: the supply voltage that each signal plate of output radio station is used.It mainly includes power filtering module, 12V voltage stabilizing output module, 15V voltage stabilizing output module ,-15V voltage stabilizing output module and 5V voltage stabilizing output module.
Launch modulation panel and include wave filter and manipulator.
Power board: transmit/receive switching, pumping signal is carried out power amplification.It mainly includes low pass filter, attenuator, prime power amplifier module, final stage power amplifier module and transmits/receives switch, one end of low pass filter is connected with the frequency mixer of RF front-end module, the other end is sequentially connected with attenuator, prime power amplifier module, final stage power amplifier module, and final stage power amplifier module is connected with the band filter of RF front-end module by transmitting/receiving switch.
RF front-end module: receive the demodulation of signal, receive buoy information and be demodulated, produce transmitting pumping signal.It mainly includes band filter, LNA, power splitter, electrically tunable filter, frequency mixer, intermediate-frequency filter, intermediate frequency demodulation chip, frequency synthesizer and fsk demodulator, described band filter is sequentially connected with LNA, power splitter, electrically tunable filter, frequency mixer, intermediate-frequency filter, intermediate frequency demodulation chip, frequency synthesizer is connected with frequency mixer, and power splitter is connected with fsk demodulator.
Maritime affairs radio station transceiver work process is as follows:
When A, RF front-end module audio input signal enter, receive control signal to be sent to FPGA by single-chip microcomputer, reception digital filter is opened by FPGA, audio signal carries out A/D conversion through chip AD73311, it is sent to send to FPGA after AMBE2000 carries out encoding (2k speed) process, the frequency word that signal after the AMBE2000 coding of reception and single-chip microcomputer send over is recombinated by FPGA, and with 115200bps speed, this voice signal is delivered to line of sight link transmitting-receiving combination.
After voice data is passed to the fpga chip of audio board by the transmitting-receiving combination of B, line of sight link, this agreement is unpacked and extracts operating frequency parameter and voice data by fpga chip: the operating frequency parameter received is sent to single-chip microcomputer, single-chip microcomputer makes transceiver be operated in present operating frequency, single-chip microcomputer emission control angle is dragged down simultaneously, open the transmission channel of transceiver；The voice data received reverts to 384bit data according to AMBE2000 data form, and be sent to AMBE2000 be decoded process, after decoding, these data give the recovery that AD73311 carries out speech data, simultaneously, transmitting digital filter is opened, firing order mails to single-chip microcomputer, makes RF front-end module, launches modulation panel and power board all in emission state.Deliver to launch modulation panel after the decoded process of digital voice signal, D/A conversion be modulated.
It addition, when FPGA is simultaneously received decoding data and launches digital voice, first decoding data are sent to line of sight link transmitting-receiving combination in the process carrying out launching digital voice.
When FPGA receives the operating frequency agreement of transceiver, this agreement is resolved by FPGA, and transceiver operating frequency is sent to single-chip microcomputer, and current transceiver operating frequency is modified by single-chip microcomputer.Meanwhile, the frequency after change is returned to FPGA, FPGA and is sent to line of sight link transmitting-receiving combination for continuous three times by returning working frequency information by single-chip microcomputer.
Maritime affairs radio station ground based voice controls the structure of terminal as shown in Figure 4, terminal and voice modulation solution tuned plate is controlled including PC, PC controls terminal and passes FREQUENCY CONTROL order mutually by fpga chip in serial ports and voice modulation solution tuned plate, and voice modulation solution tuned plate speech signal carries out encoding and decoding process.It is to send maritime affairs radio station transceiver operating frequency that PC controls terminalization, receives the operating frequency that maritime affairs radio station transceiver returns.Voice modulation solution tuned plate effect is to be digitized speech processing, amplifying.
Voice modulation solution tuned plate includes speech processing module, A/D sampling A/D chip, phonetic codec chip and fpga chip, described speech processing module is connected with A/D sampling A/D chip, phonetic codec chip and fpga chip successively, fpga chip is connected with earth station, and speech processing module is connected with microphone loudspeaker.
Ground based voice controls terminal works principle and is similar to transceiver audio board operation principle:
1. voice signal is sent to earth station
When ground voice conversation, press microphone PTT, transmitting digital filter is opened, voice signal amplifies after A/D samples, it is sent to AMBE2000 carry out encoding (2k speed), after fpga chip receives the signal after AMBE2000 coding, carry out again group and detect (13EC+40bit data)；FPGA receives the frequency word that PC sends, and the data after speech coding and frequency word are recombinated, and pressed serial port protocol by FPGA, are sent to earth station with 115200bps speed.
2. the reception of voice signal
The fpga chip of voice modulation solution tuned plate is according to serial port protocol, the data that satellite receiver sends, and extract voice data and frequency word, the protocol data received is reverted to voice data, it is sent to AMBE2000 be decoded, give D/A by decoded data, give the most again after speech processing module carries out audio frequency processing and amplifying and deliver to loudspeaker, the frequency word received is returned to PC.
During it addition, FPGA is simultaneously received decoding data and launches digital voice, first to earth station, it is being decoded the process of data by launching digital voice transmission.
The foregoing is only preferred embodiment of the present utility model; not in order to limit this utility model; it should be pointed out that, all any amendment, equivalent and improvement etc. made within spirit of the present utility model and principle, within should be included in protection domain of the present utility model.
Claims (8)
1. a unmanned plane maritime affairs voice communication system, it is characterized in that, this system includes that the transmitting-receiving combination of frequency modulation equipment, maritime affairs radio station transceiver, line of sight link, earth station and maritime affairs radio station ground based voice control terminal, frequency modulation equipment and maritime affairs radio station transceiver carry out Speech Communication in 156.000MHz～173.975MHz frequency range, and the signal that the transmitting-receiving combination of maritime affairs radio station transceiver, line of sight link, earth station and maritime affairs radio station ground based voice control between terminal communicates with RS422 form.
A kind of unmanned plane maritime affairs voice communication system the most according to claim 1, it is characterized in that, described maritime affairs radio station transceiver includes audio board, power panel, transmitting modulation panel, power board and RF front-end module, described power panel is used for providing power supply, described transmitting modulation panel, power board and RF front-end module to be connected with audio board respectively.
A kind of unmanned plane maritime affairs voice communication system the most according to claim 2, it is characterised in that described audio board includes A/D sampling A/D chip, phonetic codec chip, SCM&FPGA chip；The audio input signal of RF front-end module, after A/D sampling A/D chip, is sent to phonetic codec chip and encodes；The frequency word that signal after phonetic codec chip coding and single-chip microcomputer send over is recombinated by fpga chip, is then sent to line of sight link transmitting-receiving combination.
A kind of unmanned plane maritime affairs voice communication system the most according to claim 2, it is characterised in that described transmitting modulation panel includes wave filter and manipulator.
A kind of unmanned plane maritime affairs voice communication system the most according to claim 2, it is characterized in that, described RF front-end module includes band filter, LNA, power splitter, electrically tunable filter, frequency mixer, intermediate-frequency filter, intermediate frequency demodulation chip, frequency synthesizer and fsk demodulator, described band filter is sequentially connected with LNA, power splitter, electrically tunable filter, frequency mixer, intermediate-frequency filter, intermediate frequency demodulation chip, frequency synthesizer is connected with frequency mixer, and power splitter is connected with fsk demodulator.
A kind of unmanned plane maritime affairs voice communication system the most according to claim 2, it is characterized in that, described power board includes low pass filter, attenuator, prime power amplifier module, final stage power amplifier module and transmits/receives switch, one end of low pass filter is connected with the frequency mixer of RF front-end module, the other end is sequentially connected with attenuator, prime power amplifier module, final stage power amplifier module, and final stage power amplifier module is connected with the band filter of RF front-end module by transmitting/receiving switch.
A kind of unmanned plane maritime affairs voice communication system the most according to claim 1, it is characterized in that, described maritime affairs radio station ground based voice controls terminal and includes that PC controls terminal and voice modulation solution tuned plate, PC controls terminal and passes FREQUENCY CONTROL order mutually by fpga chip in serial ports and voice modulation solution tuned plate, and voice modulation solution tuned plate speech signal carries out encoding and decoding process.
A kind of unmanned plane maritime affairs voice communication system the most according to claim 7, it is characterized in that, described voice modulation solution tuned plate includes speech processing module, A/D sampling A/D chip, phonetic codec chip and fpga chip, described speech processing module is connected with A/D sampling A/D chip, phonetic codec chip and fpga chip successively, fpga chip is connected with earth station, and speech processing module is connected with microphone loudspeaker.
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| CN201521068500.5U CN205430522U (en) | 2015-12-18 | 2015-12-18 | Unmanned aerial vehicle maritime affairs voice communication system |
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| CN201521068500.5U CN205430522U (en) | 2015-12-18 | 2015-12-18 | Unmanned aerial vehicle maritime affairs voice communication system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106782574A (en) * | 2016-12-15 | 2017-05-31 | 成都航天通信设备有限责任公司 | A kind of digital audio modular converter and conversion method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106782574A (en) * | 2016-12-15 | 2017-05-31 | 成都航天通信设备有限责任公司 | A kind of digital audio modular converter and conversion method |
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