CN202856752U - Shortwave duplex communication system - Google Patents
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- CN202856752U CN202856752U CN 201220549917 CN201220549917U CN202856752U CN 202856752 U CN202856752 U CN 202856752U CN 201220549917 CN201220549917 CN 201220549917 CN 201220549917 U CN201220549917 U CN 201220549917U CN 202856752 U CN202856752 U CN 202856752U
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Abstract
The utility model relates to a shortwave duplex communication system, which comprises a transmitting station, a receiving station and a remote control station, wherein the receiving station comprises a shortwave receiver and a first communication controller connected with the shortwave receiver, the transmitting station comprises a shortwave transmitter and a second communication controller connected with the shortwave transmitter, the remote control station comprises a remote controller and a third communication controller connected with the remote controller, and the first communication controller is connected with the second communication controller and the third communication controller. The shortwave receiver comprises a digital signal processing unit, and the digital signal processing unit is used for setting a duplex communication mode. The technical solution provided by the utility model realizes shortwave duplex communication, and huge communication network is constituted by accessing a GSM mobile phone network, a PSTN wired telephone network and ultra-short wave radio stations, thereby meeting requirements of shortwave comprehensive command communication.
Description
Technical field
The utility model relates to communication technical field, relates more specifically to a kind of shortwave duplex communication system.
Background technology
Along with communication technology development, the short-wave frequency band resource is day by day in short supply, so short-wave radio set duplex communication demand is day by day urgent.But traditional short-wave radio set altogether location work exists than the large-signal interference, can't realize in the monomer radio station shortwave duplex communication.
In addition, single means of communication can not be met consumers' demand far away, and the user needs the multiple means of communication such as wire communication, radio communication, optical fiber communication, carries out widely communication activity.
Summary of the invention
For remedying defects, the technical problems to be solved in the utility model is to propose a kind of shortwave duplex communication system and communication means thereof, can realize the shortwave duplex communication.
In order to solve the problems of the technologies described above, the utility model is achieved by the following technical solutions.
Technical scheme one:
A kind of shortwave duplex communication system, it is characterized in that, comprise cell site, receiving station and remote control station, described receiving station comprises short-wave receiver and the first communication controler that is connected with short-wave receiver, described cell site comprises short-wave transmitter and the second communication controller that is connected with short-wave transmitter, described remote control station comprises remote controller and the third communication controller that is connected with remote controller, and described the first communication controler connects respectively described second communication controller and described third communication controller; Described short-wave receiver comprises digital signal processing unit, and described digital signal processing unit is used for arranging the duplex communication pattern.
The characteristics of technique scheme and further the improvement are:
(1) the first output of described the first communication controler is connected with the first optical transceiver, and the input of described second communication controller is connected with the 3rd optical transceiver, and described the first optical transceiver is connected with described the 3rd optical transceiver.
(2) the second output of described the first communication controler is connected with the second optical transceiver, and the input of described third communication controller is connected with the 4th optical transceiver, and described the second optical transceiver is connected with described the 4th optical transceiver.
(3) described second communication controller comprises the 3rd E1 interface, and described the 3rd E1 interface connects described the 3rd optical transceiver.
(4) described the first communication controler comprises an E1 interface and the 2nd E1 interface, and a described E1 interface connects described the first optical transceiver, and described the 2nd E1 interface connects described the second optical transceiver.
(5) described third communication controller comprises the 4th E1 interface, and described the 4th E1 interface connects described the 4th optical transceiver.
Technical scheme two:
A kind of shortwave duplex communication method based on technical scheme one described shortwave duplex communication system, is characterized in that described remote controller sends to described short-wave receiver with audio signal and data-signal; Simultaneously, described short-wave receiver is transferred to remote controller after the audio signal that receives and data-signal are processed.
The characteristics of technique scheme and further the improvement are:
(1) described remote controller sends to described short-wave receiver with audio signal and data-signal and specifically refers to: described remote controller sends to described third communication controller with audio signal and data-signal, described third communication controller sends to described the first communication controler with described audio signal and data-signal, and described the first communication controler receives described audio signal and data-signal and sends to described short-wave receiver.
(2) being transferred to described remote controller after described short-wave receiver is processed the audio signal that receives and data-signal specifically refers to: described short-wave receiver is converted to digital baseband signal with the audio signal that receives, data-signal is converted to the Data Base band signal, digital baseband signal and Data Base band signal are transferred to described the first communication controler, described the first communication controler is transferred to described second communication controller with described digital baseband signal and Data Base band signal, described second communication controller sends to described short-wave transmitter with described digital baseband signal and Data Base band signal, described digital baseband signal changed by described short-wave transmitter and the Data Base band signal is to launch after the radiofrequency signal, and short-wave receiver is transferred to described remote controller after the radiofrequency signal that receives is converted to audio signal and data-signal.
(3) mode of operation is set is the duplex communication pattern to described digital signal processing unit, and namely described digital signal processing unit receives signalling channel and opens at the transmission state.
Above-mentioned the first communication controler, second communication controller and three communication controlers of third communication controller include E1 interface and K interface, when three communication controlers during respectively with the optical transceiver signal transmission that is connected separately, use E1 interface signal transmission; When three communication controlers are communicated by letter with short-wave receiver, short-wave transmitter or remote controller respectively, use K interface signal transmission.
Description of drawings
Below in conjunction with the drawings and specific embodiments the technical solution of the utility model is described in further detail.
Fig. 1 is the utility model embodiment shortwave duplex communication system schematic diagram;
Fig. 2 is the utility model embodiment sound intermediate frequency transport stream signal journey schematic diagram;
Fig. 3 is the digital signal processing unit schematic diagram of the utility model embodiment intermediate waves receiver;
Fig. 4 is that the utility model embodiment intermediate waves radio station is to ultrashort wave radio set switching schematic flow sheet;
Fig. 5 be among the utility model embodiment ultrashort wave radio set to short-wave radio set switching schematic flow sheet;
Fig. 6 is that the utility model embodiment intermediate waves radio station is to PSTN landline telephone switching schematic flow sheet;
Fig. 7 be among the utility model embodiment the PSTN landline telephone to short-wave radio set switching schematic flow sheet;
Fig. 8 is that the utility model embodiment intermediate waves radio station is to gsm mobile telephone switching schematic flow sheet;
Fig. 9 be among the utility model embodiment gsm mobile telephone to short-wave radio set switching schematic flow sheet.
Embodiment
Among the utility model embodiment, shortwave double reception machine is called for short short-wave receiver, shortwave duplex transmitter is called for short short-wave transmitter, shortwave duplex communication controller I is called for short communication controler I(the first communication controler), shortwave duplex communication controller II is called for short communication controler II(second communication controller), shortwave duplex communication controller III is called for short communication controler III(third communication controller).
Among the utility model embodiment, what the E1 interface adopted is the E1 standard in Europe, i.e. 30 road PCM (Pulse Code Modulation, pulse-code modulation), be called for short E1, speed is 2.048Mbit/s, and the time division multiplexing frame of E1 (its length T=125us is sampling periods 125 microseconds) is divided into 32 time slots that equate altogether, time slot be numbered CH0 ~ CH31.Wherein, time slot CH0 is as frame synchronization, and time slot CH16 is used for transmitting signaling, and remaining CH1 ~ CH15 and CH17 ~ CH31 totally 30 time slots are used as 30 speech channels.Each time slot transmits 8bit, therefore shares 256bit.Per second transmits 8000 frames, so the data transfer rate of PCM primary group E1 is exactly 2.048Mbit/s.
Among the utility model embodiment, the K interface is a kind of single channel wireline interface of formulating in the Network Topology engineering specification, the user provides passage by wired mode access Field Data Communication Network in the system, carry out speech or data communication with the user of region network, perhaps utilize region network to carry out relaying, carry out speech or data communication with other user in the system.Here the K interface is used in communication technical field, is that communication medium adopts twisted-pair feeder to its requirement, and line speed is 16Kbit/s, transmission range will reach 8m, the message transmission rate asynchronous system is 2.4kbit/s, and the method for synchronization is 9.6kbit/s, and communication mode adopts the duplex communication mode.
Among the utility model embodiment, wireless user terminal is the GSM mobile handset user, and the wire user terminal is the PSTN fixed telephone subscriber.
The utility model duplex communication principle is: the full-duplex communication mode refers to carry out under the alien frequencies condition, the utility model shortwave duplex communication system is also supported the half-duplex operation mode, the utility model shortwave duplex communication system has carried out effective the separation with receiving station with the cell site, and amplification modulation and a receipts/Data Base band signal of signal are all realized at the short-wave receiver of receiving station frequently and receive/pronounce.
When the remote controller communication frequency is set to the alien frequencies mode and works, the transmission by optical cable with the FREQUENCY CONTROL signalling to short-wave receiver, short-wave receiver with the FREQUENCY CONTROL signalling to short-wave transmitter.Short-wave receiver communication controler I is transferred to communication pattern (duplex/half-duplex) digital signal processing unit of short-wave receiver by universal serial port, this digital signal processing unit arranges mode of operation according to the FREQUENCY CONTROL signaling that receives: when the duplex communication work pattern, digital signal processing unit receives signal and opens at the state of sending out; When the half-duplex operation mode of operation, digital signal processing unit receives signal at stop at the state of sending out.
Audio signal after remote controller will amplify, data-signal pass through communication controler III, optical cable transmission to short-wave receiver, the digital signal processing unit of short-wave receiver is converted to digital baseband signal and Data Base band signal with audio signal and data-signal, and the digital baseband signal after will changing and Data Base band signal be transferred to short-wave transmitter, after the frequency conversion conversion of short-wave transmitter digital baseband signal and Data Base band signal is converted to emission of radio frequency signals.Simultaneously receiver will receive radiofrequency signal be converted to audio signal and data-signal by optical cable transmission to remote controller, so just can realize the diplex operation mode.Wherein, short-wave transmitter is just as a path that transmits.
With reference to the accompanying drawings 1 and accompanying drawing 3, the utility model embodiment shortwave duplex communication system comprises receiving station, cell site and remote control station, receiving station comprises short-wave receiver and the communication controler I that is connected with short-wave receiver, the cell site comprises short-wave transmitter and the communication controler II that is connected with short-wave transmitter, remote control station comprises remote controller and the communication controler III that is connected with remote controller, communication controler I connects respectively communication controler II and communication controler III, also is connected with short-wave radio set, PSTN fixed telephone subscriber and GSM mobile handset user on the communication controler I.Wherein, short-wave receiver selects 13 ones, and short-wave transmitter selects 13 ones, and remote controller selects 6.The output of communication controler I is connected with optical transceiver 1(the first optical transceiver), the input of communication controler II is connected with optical transceiver 3(the 3rd optical transceiver), optical transceiver 1 is connected with optical transceiver 3.The output of communication controler I is connected with optical transceiver 2(the second optical transceiver), the input of communication controler III is connected with optical transceiver 4, and optical transceiver 2 is connected with optical transceiver 4.Communication controler II comprises E1 interface 3(the 3rd E1 interface), described E1 interface 3 connects optical transceiver 3.Communication controler I comprises E1 interface 1(the one E1 interface) and E1 interface 2(the 2nd E1 interface), E1 interface 1 connects described optical transceiver 1, and E1 interface 2 connects optical transceiver 2.Communication controler III comprises E1 interface 4, and described E1 interface 4 connects described optical transceiver 4.
Receiving station is the center of present embodiment shortwave duplex communication system, mainly comprises the external equipments such as short-wave receiver, communication controler I, multi-path large power D.C. regulated power supply, antenna multicoupler, batteries, short wavelength light transmission equipment (abbreviation optical transceiver) and microphone cable.The cell site mainly comprises short-wave transmitter, communication controler II, multi-path large power D.C. regulated power supply, batteries, antenna array and short wavelength light transmission equipment etc.Remote control station mainly comprises remote controller, communication controler III, D.C. regulated power supply, batteries and short wavelength light transmission equipment etc.
In the present embodiment, short-wave receiver is used advanced Digital Signal Processing realization channel digital, service digital of the present age.Its internal main will be comprised of digital signal processing unit, Main Control Unit, radio frequency amplifier unit, frequency synthesizer unit, subrane filter cell, power supply and K interface unit, audio frequency amplifier unit and anti-noise secret unit.
Digital signal processing unit is realized the digitized processing of 500KHz analog intermediate frequency signal, is realized finishing between the various communication services such as automatically control communication, frequency hopping, transfer of data and numeral words and the K interface 1 by K interface and communication controler I the transmission to data-signal by DSP (DigitalSignal Processing, Digital Signal Processing) chip.On the one hand, input 500.3KHz～503.4KHz Low Medium Frequency signal, the sampling rate Fs=9.216MHz of Low Medium Frequency module, parallel output 9.216Mbps Serial No. is to Digital Down Converter Module, Digital Down Converter Module down-converts to baseband signal to the Low Medium Frequency signal, and corresponding numeric code rate becomes 14.4Kbps from 4.608Mbps.Total extraction yield is 320.Be input as 16 parallel-by-bit data/address buss, be output as I, Q and replace serial output.(8) carry out initial configuration to Digital Down Converter Module by the microcomputer port, data are then transmitted by serial ports, data are finally delivered to the McBSP2 mouth of DSP, carry out low-pass filtering in DSP, then sent by base band A/D module, base band A/D module is 16 full duplex serial a/ds, D/A converter, it is connected to the McBSP0 mouth of DSP, master clock is 18.432MHz, adopts the synchronous serial interface transmission mode, frame synchronizing signal frequency FS=14.4KHz.The clock of Low Medium Frequency module samples, Digital Down Converter Module and base band A/D module all is to obtain from CPLD, and simultaneously, the Control on Communication between DSP and the Digital Down Converter Module also realizes by CPLD.On the other hand, be input as simulated audio signal, frequency range is 300Hz～3400Hz, arrive short-wave receiver K interface unit through the form transmission (clock, RXD, TXD GND) with the 128K synchronous serial interface after the base band A/D conversion, clock signal is provided by the K mouth, rising edge is sent out data, the trailing edge sampling.
Main Control Unit is used CPLD(Complex Programmable Logic Device, CPLD) and ARM(advanced risc machines, processor) the various controls of the receipts that achieve a butt joint machine and finish transmission to signaling-information by K interface and communication controler.The frequency conversion of twice signal, amplification and the AGC(automatic gain control of 500KHz intermediate-freuqncy signal are mainly finished in the radio frequency amplifier unit, automatic gain control) circuit.The frequency synthesizer unit is mainly by DDS (Direct Digital Synthesizer, Direct Digital Synthesizer) circuit produces a local oscillation signal, the required master clock signal of two local oscillation signals and DSP unit that the short-wave receiver radio frequency amplifier needs, the frequency range of one local oscillation signal is 47.1MHz～75.4999MHz, two local oscillation signal frequency 46MHz, the DSP clock signal frequency is 18.432MHz.The unwanted signal of the main filtering radio-frequency front-end of subrane filter cell is divided into 13 wave bands in 1.6000MHz～29.9999MHz scope.Power supply and K interface unit mainly are divided into two large parts, power unit and K interface section, wherein power unit mainly produces the required power supply in each unit of receiver, and the K interface chip of K interface section application specific carries out multiplexing and demultiplexing to data and signaling-information.The audio frequency amplifier unit is mainly to frequently signal amplify, the pronounce amplification of frequency signal and the amplification processing of various transfering the letter audio signals etc. of radio reception.The anti-noise secret unit mainly audio signal is carried out de-noising and anti-noise is processed.
In the present embodiment, short-wave transmitter is used advanced person's in the present age Digital Signal Processing realization channel digital, the real-time control that the application software algorithm has been realized power.Its internal main will be comprised of digital signal processing unit, Main Control Unit, radio frequency amplifier unit, frequency synthesizer unit, subrane filter cell, K interface unit, Power Amplifier Unit etc.Digital signal processing unit is realized the processing from the digital baseband signal of receiver end is produced the analog intermediate frequency signal of 500KHz by dsp chip.Main Control Unit is used CPLD, and the ARM process chip realizes finishing transmission to signaling-information to the various controls of transmitter and by K interface and communication controler.The frequency conversion of twice signal, amplification and the ALC control circuit of radiofrequency signal are mainly finished in the radio frequency amplifier unit.The frequency synthesizer unit mainly produces a local oscillation signal, the required master clock signal of two local oscillation signals and DSP unit that the transmitter radio frequency amplifier needs by the DDS circuit, wherein the frequency range of a local oscillation signal is 47.1MHz～75.4999MHz, two local oscillation signal frequencies are 46MHz, and the DSP clock signal frequency is 18.432MHz.The unwanted signal of the main filtering of subrane filter cell behind power amplifier reaches harmonic signal suppressed, and being divided in 1.6000MHz～29.9999MHz scope is 7 wave bands.Power supply and K interface unit mainly are divided into two large parts, power unit and K interface section, wherein power unit mainly produces the required power supply in each unit of receiver, and complete paired data and signaling-information carry out multiplexing and demultiplexing between the K interface chip of K interface unit application specific and the K interface 2 of communication controler II.Power Amplifier Unit mainly amplifies the required power signal of generation transmitter to radiofrequency signal, is comprised of third stage amplifier altogether, is respectively pre-amplifier, penultimate stage amplifier and final amplifier.
In the present embodiment, remote controller mainly amplifies the sending and receiving audio signal, carries out Signalling exchange by communication controler III and receiver, reaches the real-time control to short-wave receiver.Its internal main will be comprised of power subsystem, Main Control Unit, audio frequency amplifier unit etc.Power subsystem mainly is comprised of the AC/DC module, mainly produces the required 12V voltage of remote controller.Main Control Unit application CPLD and ARM process chip realize finishing the transmission to signaling-information between the switching controls of remote controller audio frequency and the K interface 3 by K interface and communication controler III.The audio frequency amplifier unit is mainly finished receiving/the frequently amplification of signal of pronunciation.
Remote controller can be linked into remote control station communication controler III by the K interface, links to each other by the E1 mouth between communication controler III and short wavelength light transmission equipment, and then by short wavelength light transmission equipment, communication controler I and the short-wave receiver of optical cable transmission to short-wave receiver.When remote controller is operated (settings of frequency and various parameters), the Main Control Unit of remote controller is transferred to communication controler III with the speed of 9.6Kbit/s by the K interface with control signal, and then by optical cable transmission to short-wave receiver, the short-wave receiver Main Control Unit is resolved signaling and then the various parameters such as frequency of short-wave receiver is set, and then further is transferred to short-wave transmitter if any the signaling of short-wave transmitter.When carrying out voice communication, pronunciation after remote controller will amplify frequently signal is transferred to short-wave receiver by the K interface, short-wave receiver is converted to digital baseband signal with this audio signal and is transferred to short-wave transmitter and controls its forwarding, audio signal is converted to radiofrequency signal goes out by antenna transmission.Short-wave receiver is converted to radio reception with the radiofrequency signal that receives and frequently is transferred to remote controller by the K interface behind the signal, and remote controller is exported by loudspeaker after audio signal is amplified.
When carrying out transfer of data, remote controller is transferred to short-wave receiver with the terminal data signal after by the K interface duplex, after being converted to the Data Base band signal with this data-signal, short-wave receiver is transferred to short-wave transmitter, and then be converted to emission of radio frequency signals, short-wave receiver is converted to data-signal with the radiofrequency signal that receives and is transferred to remote controller, outputs to terminal behind the demultiplexing by the K interface.
In the present embodiment, communication controler I, communication controler II and communication controler III are the core nodes of this duplex communication system, by optical cable short-wave receiver, short-wave transmitter and remote controller are linked together, its mainly by K interface circuit and time-division multiplex technique with data-signal with signaling-information is multiplexing and demultiplexing.
In the present embodiment, D.C. regulated power supply mainly produces the required multiple power supplies of each equipment of system, the required power supply of system mainly contains receiver, the required 13.8V stabilized voltage power supply of transmitter, and required 24V stabilized voltage power supply, the optical transceiver of short wave communication controller be required-the 48V stabilized voltage power supply etc.
In the present embodiment, the antenna multicoupler effect is that aerial signal is isolated, separated, because every receiver can not adopt 1 pair of antenna, so need to there be special equipment that the plurality of antennas signal is separated to every short-wave receiver.It is good that this antenna multicoupler has between the road isolation, three rank section index advantages of higher.
In the present embodiment, batteries is the emergency electric supply unit of system, charges by D.C. regulated power supply accumulators group when at ordinary times civil power work being arranged, and seamlessly switches to storage battery power supply by DC power supply when civil power disconnects.And there being people operating side (receiver end or remote controller end) to carry out warning prompt, because batteries can not be carried out system power supply work for a long time.When there being when prompting user can carry out generating electricity with generator and select power supply.
In the present embodiment, the equipment that the short wavelength light transmission equipment is got in touch with in the middle of being.The 2ME1 port of this equipment by standard links to each other with the short wave communication controller, connects by optical fiber port or optical cable, various data and signaling-information can be arrived the E1 interface of the short wave communication controller of the other end by optical cable transmission.
In the present embodiment, affect in the principal element of short wave communication effect, antenna is primary.Select Effective Radiated Power that a secondary good antenna can make the radio station at double even become several times of increases.According to communication distance, communication direction (orientation or omnidirectional), the difference of bearing power, the short-wave antenna kind can have multiple choices, from in the world, using broad-band antenna is fashion trend, this is because broad-band antenna has simple in structurely, sets up conveniently, need not day transfer, earth-free line, the advantages such as wide frequency range.Transmitting antenna in the present embodiment and reception antenna all adopt novel three-wire type high efficiency and broad band antenna.
By reference to the accompanying drawings 2, remote control station arrives receiving station with audio signal transmission, receiving station receives the audio signal that remote control station sends, and be modulated into base-band audio signal, and the base-band audio signal that is modulated into is transferred to the cell site, the cell site receives the base-band audio signal that receiving station sends, and this base-band audio signal is modulated into emission of radio frequency signals goes out.
Remote controller arrives communication controler III with audio signal transmission, communication controler III is transferred to optical transceiver 4 after with the audio signal time division multiplexing that receives, optical transceiver 4 is transferred to optical transceiver 2 with the signal after the time division multiplexing, optical transceiver 2 arrives the audio signal after multiplexing the optical transceiver 4 of receiving station by optical cable transmission, after optical transceiver 4 is transferred to the K interface 3 of communication controler III with the audio signal that receives by E1 interface 4, is transferred to again behind the remote controller K interface and audio signal is exported after amplifying through analogue amplifier.
Optical transceiver 3 receives the base-band audio signal of optical transceiver 1, and be transferred to communication controler II, communication controler II connects 2 by K this base-band audio signal is transferred to short-wave transmitter K interface, short-wave transmitter is sent the base-band audio signal that receives into the DSP unit, send into radio frequency amplifier after the intermediate-freuqncy signal of DSP unit generation 500KHz, radio frequency amplifier is gone out by antenna transmission after radiofrequency signal is sent into power amplifier and amplified.
In the present embodiment, the core members of K interface is FPGA(Field-Programmable Gate Array, be field programmable gate array), Main Function is multiplex/demultiplex, be about to two paths of data signal and the multiplexing framing of one tunnel audio signal, be sent to far-end by special-purpose teletransmission K interface device again; Otherwise, will after receiving all K interface signal demultiplexing, far-end send respectively corresponding terminal to, and its transmission rate is 80Kbit/s.Communication controler I be adopt the Time Division Multiplexing principle finish the access of multiple signals～converge～-pick out equipment, the type that accesses/go out signal has two kinds, a kind of is audio signal (300Hz～3400Hz), a kind of is data-signal (speed generally below 4800bPs, also has high speed interface).The data audio base-band letter ﹑ VOCODER(vocoder that MODEM produced when wherein audio port was used for accessing/pick out the audio frequency base band letter ﹑ automated communications order base band letter ﹑ transfer of data that the destination provides is provided as the path of audio signal and data-signal in pairs) the data audio baseband signal of generation etc.Converging signal is 2MPCM code signal (two-way, receives), and the 2M interface of the optical communication equipment (such as optical transceiver) of the accessible standard of this signal is in order to fail by optical fiber.Optical transceiver provides 2 road 2M (two receive two) interface or 1 road 2M (receives) interface, and the same transparent transmission signal (HDB3 code) of standard is converted to light signal; Transmission range is greater than 10 kilometers; Pass distance if improve, then should match corresponding optical transceiver module.
By reference to the accompanying drawings 4, comprise short-wave radio set, short-wave receiver, communication controler 1, ultrashort wave near-end radio station and ultrashort wave far-end radio station.
Short-wave receiver receives transmitting of short-wave radio set, this signal is carried out producing audio signal after the frequency-conversion processing, this audio signal is sent to communication controler 1, the ultrashort wave port VHF.RADIO of communication controler 1 sends into this audio signal ultrashort wave near-end radio station and controls its emission, ultrashort wave far-end radio station can receive the short-wave radio set signal, has realized the switching of short-wave radio set to ultrashort wave radio set.
By reference to the accompanying drawings 5, comprise ultrashort wave far-end radio station, ultrashort wave near-end radio station, communication controler 1, short-wave receiver, short-wave transmitter and short-wave radio set.
Ultrashort wave near-end radio station is sent to communication controler 1 after receiving and being translated into audio signal behind the signal in ultrashort wave far-end radio station, the ultrashort wave interface HF.RADIO of communication controler 1 sends this audio signal into short-wave receiver and modulates, digital baseband signal after the modulation is transferred to short-wave transmitter and controls its forwarding by optical transceiver, short-wave radio set can receive ultrashort wave far-end radio signals, has realized the switching of ultrashort wave radio set to short-wave radio set.
By reference to the accompanying drawings 6, comprise short-wave radio set, short-wave receiver, communication controler I and PSTN fixed telephone subscriber.
Communication controler I rear board has 2 road Public Switched Telephone Network interfaces, uses so that the short-wave receiver of access can be used as a landline telephone.Shortwave far-end radio station uses dialer to dial cable phone number (such as 029-88660531), and wherein, when using first via PSTN, the number of dialer is set to 21***, and during the second road PSTN, the number of dialer is set to 22***; Make called wire user ring, finish the wire/wireless switching.After link establishment is finished, the short-wave radio set speech, short-wave receiver receives after the audio signal this audio signal transmission to communication controler I, communication controler device I with this audio signal transmission to the pstn telephone line, thereby realized switching between short-wave radio set and the PSTN wire user.
By reference to the accompanying drawings 7, comprise PSTN fixed telephone subscriber, communication controler I, short-wave receiver, short-wave transmitter and short-wave radio set.
The wire user number of the call communication controller I of PSTN fixed telephone subscriber elder generation is heard the address (such as 21103) of dialling the wireless user behind two " dripping " prompt tones, makes wireless user (user who comprises receiving station) ring, finishes wired to wireless connection.PSTN telephone user speech, then by switch audio signal transmission is arrived communication controler I, communication controler I arrives short-wave receiver with this audio signal transmission, and transmit by short-wave receiver control short-wave transmitter, this audio signal is launched by short-wave transmitter, thereby PSTN fixed telephone subscriber and short-wave radio set are set up the audio frequency contact.
By reference to the accompanying drawings 8, comprise short-wave radio set, short-wave receiver, communication controler I, gsm module, GSM mobile handset user.
Communication controler I rear board has 1 road gsm module interface, uses so that the short-wave receiver of access can be used as a GSM mobile handset phone.Short-wave radio set uses dialer to dial mobile phone wireless Subscriber Number (such as 13509178891), and wherein, the number of dialer is set to 23***, makes called mobile phone wireless user ring, finishes the switching of wireless handset users and short-wave radio set.After link establishment is finished, the short-wave radio set speech, short-wave receiver arrives communication controler I with this audio signal transmission after receiving audio signal, communication controler device I is transferred to all the other cellphone subscribers by cellular base station with this audio signal transmission behind gsm module, thereby has realized the switching between short-wave radio set and the gsm wireless user.
By reference to the accompanying drawings 9, comprise GSM mobile handset user, gsm module, communication controler I, short-wave receiver, short-wave transmitter and short-wave radio set.
GSM mobile handset user is transferred to gsm module with calling signal, gsm module is transferred to communication controler I with this calling signal, communication controler I sends to short-wave radio set with this calling signal by short-wave transmitter, thereby set up being connected of GSM mobile handset user and short-wave radio set.After link establishment is finished, GSM mobile handset user's speech, gsm module will receive audio signal transmission to communication controler I, communication controler device I with this audio signal transmission behind short-wave transmitter, short-wave transmitter is transferred to short-wave radio set, thereby has realized the switching between gsm wireless user and the short-wave radio set.
Technical solutions of the utility model have realized that the access in shortwave duplex communication, GSM mobile handset network, PSTN wired telephone network, ultrashort wave radio set and individual soldier radio station consists of huge communication network, has satisfied the comprehensive communication for command needs of shortwave.
The utility model also has numerous embodiments, in every case in spirit of the present utility model and essential scope, any change of doing, is equal to replacements, improvement, all within protection range of the present utility model.
Claims (6)
1. shortwave duplex communication system, it is characterized in that, comprise cell site, receiving station and remote control station, described receiving station comprises short-wave receiver and the first communication controler that is connected with short-wave receiver, described cell site comprises short-wave transmitter and the second communication controller that is connected with short-wave transmitter, described remote control station comprises remote controller and the third communication controller that is connected with remote controller, and described the first communication controler connects respectively described second communication controller and described third communication controller; Described short-wave receiver comprises digital signal processing unit, and described digital signal processing unit is used for arranging the duplex communication pattern.
2. shortwave duplex communication system as claimed in claim 1, it is characterized in that, the first output of described the first communication controler is connected with the first optical transceiver, and the input of described second communication controller is connected with the 3rd optical transceiver, and described the first optical transceiver is connected with described the 3rd optical transceiver.
3. shortwave duplex communication system as claimed in claim 2, it is characterized in that, the second output of described the first communication controler is connected with the second optical transceiver, and the input of described third communication controller is connected with the 4th optical transceiver, and described the second optical transceiver is connected with described the 4th optical transceiver.
4. shortwave duplex communication system as claimed in claim 2 is characterized in that, described second communication controller comprises the 3rd E1 interface, and described the 3rd E1 interface connects described the 3rd optical transceiver.
5. shortwave duplex communication system as claimed in claim 3 is characterized in that, described the first communication controler comprises an E1 interface and the 2nd E1 interface, and a described E1 interface connects described the first optical transceiver, and described the 2nd E1 interface connects described the second optical transceiver.
6. shortwave duplex communication system as claimed in claim 3 is characterized in that, described third communication controller comprises the 4th E1 interface, and described the 4th E1 interface connects described the 4th optical transceiver.
Priority Applications (1)
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105356927A (en) * | 2015-12-25 | 2016-02-24 | 河南省电力勘测设计院 | Relay method and relay adaptor for short-wave radio station |
| CN106714009A (en) * | 2016-12-15 | 2017-05-24 | 陕西烽火实业有限公司 | Shortwave radio station optical fiber communication system and method |
| CN107359975A (en) * | 2017-06-23 | 2017-11-17 | 四川海猫通信科技股份有限公司 | A kind of remote-controlled shortwave duplex communication system and its method of work |
| CN107359976A (en) * | 2017-06-23 | 2017-11-17 | 四川海猫通信科技股份有限公司 | A kind of shortwave duplex communication system and its method of work |
| CN109286439A (en) * | 2018-08-07 | 2019-01-29 | 天津瑞利通科技有限公司 | A kind of access device that K interface data is carried to optical fiber |
| CN110224751A (en) * | 2018-03-01 | 2019-09-10 | 长春理工大学 | Optical communication apparatus between a kind of spacecraft |
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2012
- 2012-10-24 CN CN 201220549917 patent/CN202856752U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105356927A (en) * | 2015-12-25 | 2016-02-24 | 河南省电力勘测设计院 | Relay method and relay adaptor for short-wave radio station |
| CN105356927B (en) * | 2015-12-25 | 2019-03-01 | 中国电建集团河南省电力勘测设计院有限公司 | A kind of short-wave radio set trunking method and short-wave radio set tandem switching device |
| CN106714009A (en) * | 2016-12-15 | 2017-05-24 | 陕西烽火实业有限公司 | Shortwave radio station optical fiber communication system and method |
| CN107359975A (en) * | 2017-06-23 | 2017-11-17 | 四川海猫通信科技股份有限公司 | A kind of remote-controlled shortwave duplex communication system and its method of work |
| CN107359976A (en) * | 2017-06-23 | 2017-11-17 | 四川海猫通信科技股份有限公司 | A kind of shortwave duplex communication system and its method of work |
| CN110224751A (en) * | 2018-03-01 | 2019-09-10 | 长春理工大学 | Optical communication apparatus between a kind of spacecraft |
| CN109286439A (en) * | 2018-08-07 | 2019-01-29 | 天津瑞利通科技有限公司 | A kind of access device that K interface data is carried to optical fiber |
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