CN102523027A - Digital talkback relay transmission method and digital talkback relay equipment - Google Patents
Digital talkback relay transmission method and digital talkback relay equipment Download PDFInfo
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- CN102523027A CN102523027A CN2011104426160A CN201110442616A CN102523027A CN 102523027 A CN102523027 A CN 102523027A CN 2011104426160 A CN2011104426160 A CN 2011104426160A CN 201110442616 A CN201110442616 A CN 201110442616A CN 102523027 A CN102523027 A CN 102523027A
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Abstract
The invention discloses digital talkback relay equipment, which consists of a light transmission system, a power supply, a micro processing system, an antenna feeder system, a digital wireless talkback signal transceiver, a synchronous signal processor, a signal transmission logic controller, a received digital signal power divider, a digital signal transmission direction power divider, a digital transmission signal power divider, an emitted digital signal combiner, an emitted digital signal transmission direction combiner, a digital transmission signal combiner, a multiplexer and a demultiplexer. And a digital talkback relay transmission method is implemented, so that a relay transmission link is supplied when a digital interphone at any position in a weak field area launches calls and communicates with other digital interphones at any position; and the synchronization problem during relay transmission and the feedback and self-excitation problems during working under a time division multi-access (TDMA) mode are solved.
Description
Technical field
The present invention is a radio communication relay transmission technology, is applicable to the relay transmission of the digital intercommunication wireless communication system of feeble field section, belongs to wireless communication technology field.
Background technology
At present existing conventional wireless relay transmission method and equipment; Be applicable to the conventional simulation wireless intercom system or have the wireless relay of center digit wireless communication system to transmit; For the center digit wireless communication system is arranged; Like GSM, CDAM, WCDMA, TD-SCDAM, CDMA2000 and wireless communication systems such as center wireless digital intercommunication connecting system are arranged; Its transmission method shows as: the transmission course of wireless access-wire transmission-core net processing-wire transmission-wireless access, and in this process, the Synchronous Processing of monolateral wireless access is handled independent the realization by base station or core net; Need between bilateral wireless access end is to digital radio mobile station, not carry out the Coordination Treatment of synchronous transmission; And digital radio intercom system and simulation intercom system needed relay transmission method are: the transmission course of wireless access-wire transmission-wireless access, and the position of the on-position of wireless interspeaker and communication object has arbitrariness, for the relay transmission of simulation intercom system; In wireless access, need not carry out Synchronous Processing; For the digital radio intercom, need bilateral even the multipoint digital wireless access has the synchronous transmission disposal ability and could realize it is carried out relay transmission, so existing wireless talkback trunking method and equipment can not be applicable to the requirement that the wireless relay to digital wireless intercom system transmits; And in the digital radio transmission course; Because the digital radio intercom system has TDMA and two kinds of patterns of FDMA, in wireless relay process, also need solve the back coupling self-excitation of adjacent trunking under the TDMA pattern and the problem that effectively covers to digital wireless intercom system.
Summary of the invention
In view of the foregoing; The object of the present invention is to provide a kind of digital intercommunication relay transmission method and digital intercommunication trunking; Make this numeral intercommunication trunking to provide relay transmission to connect for certain digital radio intercom of the optional position that is in the feeble field district makes a call and communicates by letter the digital radio intercom of other optional positions; The stationary problem of solution in relay transmission, and avoid the back coupling self-excitation problem when the TDMA mode of operation.
For achieving the above object; The present invention introduces a kind of digital intercommunication relay transmission method; Include the method for work that realizes by digital radio intercommunication transceiver, microprocessor, forwarding transmission logic controller and optical transmission system in a plurality of wireless relay transmission equipments, the wireless relay transmission equipment; It is characterized in that in wireless relay transmission equipment and digital radio intercommunication transceiver wherein, being provided with radio transmitted power regulating command sign indicating number, address code, adjacent station reception permissible value, and select to adopt following method of work:
(1) produces circuit transmitting synchronous clock sign indicating number by some digital intercommunication trunkings; Launch as reception, transmission and the channel synchronization clock sign indicating number of digital radio intercommunication transceiver with this circuit transmitting synchronous clock sign indicating number; And this circuit transmitting synchronous clock sign indicating number sent to other digital intercommunication trunking through optical transmission system, other digital intercommunication trunking is also launched this circuit transmitting synchronous clock sign indicating number as the synchronised clock sign indicating number of reception, emission and the channel of digital radio intercommunication transceiver;
(2) the wireless receiving CF signal that digital intercommunication trunking is received carries out demodulation process and obtains receiving digital signals; The strength signal of the wireless receiving CF signal that it is corresponding carries out obtaining corresponding reception carrier frequency intensity sign indicating number after the digitized processing; To receive carrier frequency intensity sign indicating number and corresponding address sign indicating number through optical transmission system sends to a plurality of other digital intercommunication trunkings through optical transmission system; When the transmission logic controller allows, promptly when this transmission logic controller is in the passage unlatching, this receiving digital signals is carried out wireless transmit through digital radio intercommunication transceiver; In real work; Under the TDMA pattern, digital radio intercommunication transceiver is not given synchronized transmissions under the control of microprocessor, and takes branch time slot sending method; Under the FDMA pattern, give synchronized transmissions, and the transmission method that this receiving digital signals is sent to other other digital intercommunication trunkings through optical transmission system;
(3) transmission method that sends to other other digital intercommunication trunkings through optical transmission system of the digital intercommunication trunking receiving digital signals that will send through other digital intercommunication trunkings that optical transmission system is received; When the transmission logic controller allows, promptly when this transmission logic controller is in the passage unlatching, this receiving digital signals is carried out the transmission method of wireless transmit through digital radio intercommunication transceiver;
(4) digital intercommunication trunking is handled corresponding reception carrier frequency intensity sign indicating number and the time of reception that address code characterized, corresponding value and receiving position that the correspondence that obtains receives carrier frequency intensity sign indicating number and the digital signal that receives through optical transmission system with the wireless receiving CF signal that receives and is compared and judge; This relatively reaches judgement work and is accomplished by microprocessor; According to relatively reaching result of determination control transmission logic controller operating state, the wireless receiving of selecting in above-mentioned (2) or (3) digital intercommunication trunking to be received is exported the method for transmission processing that digital signal reaches the digital signal of receiving through optical transmission system;
(5) digital intercommunication trunking receives radio transmitted power regulating command sign indicating number and corresponding address sign indicating number thereof through wireless digital transceiver or optical transmission system; And according to this command code and address code the carrier frequency power of digital radio intercommunication transceiver in the digital intercommunication trunking of correspondence is regulated, radio transmitted power regulating command sign indicating number here and corresponding address sign indicating number thereof are produced and are sent by wireless digital intercom or remote supervisory and control(ling) equipment;
(6) the transmitting carrier frequency signal strength signal intensity of digital intercommunication trunking adjacent digital intercommunication trunking that the wireless digital transceiver is received is measured; When the transmitting carrier frequency signal strength signal intensity of this numeral intercommunication trunking that receives is stood the reception permissible value above the neighbour who sets; Send transmission power adjustment command code and corresponding address sign indicating number through optical transmission system; After adjacent digital intercommunication trunking receives transmission power adjustment command code and corresponding address sign indicating number through optical transmission system; The transmitting carrier frequency signal power of the digital intercommunication transceiver of correspondence is reduced the neighbour that the transmitting carrier frequency signal strength signal intensity of the adjacent digital intercommunication trunking that receives until digital intercommunication trunking the is lower than setting reception permissible value of standing;
(7) described optical transmission system adopts multiplexed transmission method to the digital data transmission of digital intercommunication trunking.
For realizing above-mentioned digital intercommunication relay transmission method; The present invention also introduces a kind of digital intercommunication trunking; Including optical transmission system, power supply, microprocessing systems, antenna feeding system, digital radio intercommunication transceiver, said optical transmission system is meant by optical fiber, optical branching device, photoelectricity and sends transducer and the photoelectricity receiving converter constitutes; It is characterized in that having a synchronous signal processor; This synchronous signal processor produces circuit transmitting synchronous clock sign indicating number under the control of microprocessor; Or receiving lines transmitting synchronous clock sign indicating number; And the synchronised clock sign indicating number is provided to the reception of digital radio receiving-transmitting unit, emission and channel control; Two transmission logic controllers, a receiving digital signals power splitter, a digital side signal transmission are to power splitter, two digital data transmission power splitters, an emission digital signal mixer, an emission digital data transmission direction mixer, two digital data transmission mixers, two multiplexers, two demultiplexing devices; The receiving digital signals output of digital radio intercommunication transceiver is connected with the input of a transmission logic controller; The output of this transmission logic controller is connected with the input of receiving digital signals power splitter; The merit of receiving digital signals power splitter divides output to be connected with an input, the digital data transmission direction power splitter input of emission digital signal mixer respectively; The merit of digital data transmission direction power splitter divides an input of different with two the respectively digital data transmission mixer of output to be connected; The output of two digital data transmission mixers respectively two be connected with an input of different multiplexer; The output of two demultiplexing devices is connected with the input of different two digital data transmission power splitters respectively; Two digital data transmission power splitters merit separately divides an input of different with two the respectively digital transmission signal mixer of output to be connected; Two digital data transmission power splitters another merit separately divides output to be connected with the different input of emission digital data transmission direction mixer respectively; The output of emission digital data transmission direction mixer and the input of another transmission logic controller be connected; The output of this transmission logic controller is connected with another input of emission digital signal mixer; The output of emission digital signal mixer is connected with the emission digital signal input end of digital radio intercommunication transceiver; The synchronizing signal input/output terminal of synchronous signal processor is connected with synchronous signal input end, multiplexer digital signal output end, the demultiplexing device digital signal output end of digital transceiver respectively, and one group of reception carrier frequency strength signal output, multiplexer and the demultiplexing device of the operating state of the operating state of the operating state of synchronous signal processor and control input/output terminal, transmission logic controller and control input/output terminal, digital radio intercommunication transceiver and control input/output terminal, digital radio intercommunication transceiver transmits and controls input/output terminal and is connected with the work control input/output terminal of microprocessing systems respectively.
Operation principle of the present invention is: produce circuit transmitting synchronous clock sign indicating number by some digital intercommunication trunkings; Launch as reception, transmission and the channel synchronization clock sign indicating number of digital radio intercommunication transceiver with this circuit transmitting synchronous clock sign indicating number; And this circuit transmitting synchronous clock sign indicating number sent to other digital intercommunication trunking through optical transmission system; Other digital intercommunication trunking also sends this circuit transmitting synchronous clock sign indicating number as the synchronised clock sign indicating number of reception, emission and the channel of digital radio intercommunication transceiver, the digital intercommunication trunkings that so just make all connect through optical transmission system have unified synchronised clock, and to coordinate the working time slot of reception, emission and channel of the digital radio intercommunication transceiver in each digital intercommunication trunking synchronous; The wireless receiving CF signal that digital intercommunication trunking is received carries out demodulation process and obtains receiving digital signals; The strength signal of the wireless receiving CF signal that it is corresponding carries out obtaining corresponding reception carrier frequency intensity sign indicating number after the digitized processing; To receive carrier frequency intensity sign indicating number and corresponding address sign indicating number through optical transmission system and send, when the transmission logic controller allows, promptly when this transmission logic controller is in passage and opens to a plurality of other digital intercommunication trunkings; This receiving digital signals is carried out wireless transmit through digital radio intercommunication transceiver; In real work, under the TDMA pattern, digital radio intercommunication transceiver is not given synchronized transmissions under the control of microprocessor; And take branch time slot sending method; Under the FDMA pattern, give synchronized transmissions, and the transmission method that this receiving digital signals is sent to other other digital intercommunication trunkings through optical transmission system, like this; Certain digital intercommunication trunking will receive the wireless digital intercom and transmit and send to other digital intercommunication trunking and forward through optical transmission system, realize the function that the relay transmission of wireless digital intercom is transmitted; The transmission method that the receiving digital signals that numeral intercommunication trunking will send through other digital intercommunication trunkings that optical transmission system is received sends to other other digital intercommunication trunkings through optical transmission system; When the transmission logic controller allows; Promptly when this transmission logic controller is in the passage unlatching; This receiving digital signals is carried out the transmission method of wireless transmit through digital radio intercommunication transceiver; Be that the receiving digital signals that digital intercommunication trunking is also accomplished transmitting in the optical transmission system carries out the optical transmission relaying, and it is given wireless forwarding; Numeral intercommunication trunking is handled corresponding reception carrier frequency intensity sign indicating number and the time of reception that address code characterized, corresponding value and receiving position that the correspondence that obtains receives carrier frequency intensity sign indicating number and the digital signal that receives through optical transmission system with the wireless receiving CF signal that receives and is compared and judge; According to relatively reaching result of determination control transmission logic controller operating state; Select the above-mentioned wireless receiving output digital signal that digital intercommunication trunking is received to reach the method for transmission processing of the digital signal of receiving through optical transmission system; This comparison, judgement and Control work are implemented to accomplish by microprocessor; Has unique source with regard to the digital signal that makes the wireless digital transceiver launched like this; Like this can be so that when in the area of coverage that interweaves of a plurality of digital intercommunication trunkings, using; The multipath of avoiding a plurality of transfering the letters path to bring disturbs, and reduces the interference that the present invention in use produces; Numeral intercommunication trunking receives radio transmitted power regulating command sign indicating number and corresponding address sign indicating number through wireless digital transceiver or optical transmission system, and according to this command code and address code the carrier frequency power of digital radio intercommunication transceiver in the digital intercommunication trunking of correspondence is regulated; Like this can be so that the carrier frequency power of digital radio intercommunication transceiver have remote control adjustment, function is set in the digital intercommunication trunking, the convenient application; Numeral intercommunication trunking is measured the transmitting carrier frequency signal strength signal intensity of the adjacent digital intercommunication trunking that receives; When the transmitting carrier frequency signal strength signal intensity of this numeral intercommunication trunking that receives is stood the reception permissible value above the neighbour who sets; Send the transmission power adjustment instruction through optical transmission system; The transmitting carrier frequency signal power that this numeral intercommunication trunking is corresponding is reduced; Be lower than the permissible value of setting until receiving this transmitting carrier frequency signal strength signal intensity, so just avoided the back coupling self-excitation influence under the TDMA pattern; Optical transmission system wherein adopts multiplexed transmission method to the digital data transmission of digital intercommunication trunking, like this can be so that optical transmission system can adapt to the multiplexing demand of digital radio intercom system; Like this; Just realized that digital intercommunication trunking can provide relay transmission to connect for the digital handset of the optional position that is in the feeble field district makes a call and communicates by letter other digital handsets of optional position; The stationary problem of solution in relay transmission, and in the application that guarantees covering feeble field district, avoid in the TDMA mode of operation, occurring feedbacking the self-excitation problem.
Description of drawings
Fig. 1 is the electrical schematic diagram of the digital intercommunication trunking of one embodiment of the invention.
Fig. 2 is the transmission logic controller electrical schematic diagram in the digital intercommunication trunking of one embodiment of the invention.
Embodiment
Below be example explanation embodiments of the invention with the accompanying drawing.
Pairing device of identical numbering among Fig. 1 to Fig. 2 and module title and function are identical, but working form separately, frequency range and frequency have can be different.
Fig. 1 is the electrical schematic diagram of the digital intercommunication trunking of one embodiment of the invention, wherein:
1 is synchronous signal processor; Synchronous signal processor produces circuit transmitting synchronous clock sign indicating number under the control of microprocessor; Or receiving lines transmitting synchronous clock sign indicating number; And the synchronised clock sign indicating number is provided to the reception of digital radio receiving-transmitting unit, emission and channel control, adopt the controllable type oscillator module to constitute, and co-ordination under microprocessor control; 2 is digital radio intercommunication transceiver, adopt with system in the identical standard of employed digital radio intercom and the digital radio intercommunication transceiver of frequency range get final product; 3,4 is signal transmission logic controller, adopts electronic switch to get final product, and by its keying work of microprocessor control; 5 is the receiving digital signals power splitter, and 6 is digital data transmission direction power splitter, and 7,8 is the digital data transmission power splitter, and 5,6,7,8 all adopt the one-to-two power splitter to get final product; 9 are emission digital signal mixer, and 10 are emission digital data transmission direction mixer, and 11,12 is the digital data transmission mixer, and 9,10,11,12 all adopt two-in-one mixer to get final product; 13,14 is multiplexer, adopts multiplexed light to send terminal and gets final product; 15,16 is the demultiplexing device, adopts multiplexed light-receiving terminal to get final product; The receiving digital signals output of digital radio intercommunication transceiver is connected with the input of a transmission logic controller; The output of this CF signal transmission logic controller is connected with the input of receiving digital signals power splitter; The merit of receiving digital signals power splitter divides output to be connected with an input, the digital data transmission direction power splitter input of emission digital signal mixer respectively; The merit of digital data transmission direction power splitter divides an input of different with two the respectively digital transmission signal mixer of output to be connected; The output of two digital data transmission mixers respectively two be connected with an input of different multiplexer; The output of two demultiplexing devices is connected with the input of different two digital transmission signal power splitters respectively; Two digital data transmission power splitters merit separately divides an input of different with two the respectively digital data transmission mixer of output to be connected; Two digital data transmission power splitters another merit separately divides output to be connected with the different input of emission digital data transmission direction mixer respectively; The output of emission digital data transmission direction mixer and the input of another CF signal transmission logic controller be connected; The output of this CF signal transmission logic controller is connected with another input of emission digital signal mixer; The output of emission digital signal mixer is connected with the emission digital signal input end of digital radio intercommunication transceiver; The synchronizing signal input/output terminal of synchronous signal processor is connected with synchronous signal input end, multiplexer digital signal output end, the demultiplexing device digital signal output end of digital transceiver respectively, and one group of reception carrier frequency strength signal output, multiplexer and the demultiplexing device of the operating state of the operating state of the operating state of synchronous signal processor and control input/output terminal, transmission logic controller and control input/output terminal, digital radio intercommunication transceiver and control input/output terminal, private network radio receiving transmitting module transmits and controls input/output terminal and is connected with the work control input/output terminal of microprocessing systems respectively;
Dispose each functional module, components and parts, join dependency device blocks according to annexation shown in Figure 1 and above-mentioned explanation, and write control program and running parameter is set, can accomplish enforcement of the present invention for microprocessor.
Digital intercommunication relay transmission method of the present invention; Can also be that the propagation delay time of the signal that transmits through optical transmission system between each digital intercommunication trunking is measured; And according to each propagation delay time on circuit transmitting synchronous clock sign indicating number datum mark, giving compensating equalization respectively the launch time of the synchronised clock sign indicating number of reception, emission and the channel of the digital radio intercommunication transceiver in each digital intercommunication trunking; Realize the reception of digital radio intercommunication transceiver synchronized transmission, emission and channel synchronization clock sign indicating number in each digital intercommunication trunking; Reach wireless receiving, emission and the synchronous method of work of channel time slot distributing uniform; Make wireless receiving, emission and the channel time slot distribution of the digital radio intercom that all digital intercommunication trunking emission coverages are interior all be in the synchronous working state like this, improve relay transmission quality of the present invention.
Digital intercommunication relay transmission method of the present invention; Can also be to include gps satellite time dissemination system, operating state data collector and method of work that long distance control system realized; Described circuit transmitting synchronous clock sign indicating number is produced by the gps satellite time dissemination system; The working status parameter of each module is gathered and send to long distance control system through the operating state data collector through light transmission transmitter; Instruction processing unit is through the operational order and the running parameter of light transmission receiver receiving remote supervisory control system; And the method for work of each functional module level device in the digital intercommunication trunking being carried out the control of running parameter setting and operating state; Because the clock accuracy that the gps satellite time dissemination system is provided is high; The time consistency of gps satellite time dissemination system that is transferred to each digital intercommunication trunking is strong; Therefore adopt the gps satellite time dissemination system can be, adopt the operating state data collector that the working status parameter of each module is gathered and send to long distance control system, and can make the present invention can be convenient to practical application to the method for work that each functional module level device in the digital intercommunication trunking carries out running parameter setting and operating state control by long distance control system through light transmission transmitter so that the present invention can provide relay transmission quality preferably.
Digital intercommunication trunking of the present invention; Can also be digital intercommunication radio receiving-transmitting unit that a plurality of different operating frequencies are arranged in described digital intercommunication trunking, a plurality of transmission logic controllers, a plurality of receiving digital signals power splitter, a plurality of digital data transmission direction power splitter, a plurality of digital transmission signal power splitter, a plurality of emission digital signal mixer, a plurality of emission digital data transmission direction mixer, a plurality of digital transmission signal mixer are arranged; Its annexation is carried out corresponding one by one complete connection according to the digital intercommunication trunking shown in the accompanying drawing 1; Wherein also has a satellite gps receiver; The time service clock output of satellite gps receiver is connected with the synchronous signal input end of synchronous signal processor; Can improve the synchronization accuracy of digital intercommunication trunking like this; Improve the relay transmission quality, and relay transmission is provided for more digital radio intercom system.
Digital intercommunication trunking of the present invention; Can also be that digital radio intercommunication transceiver module in described digital intercommunication trunking is the broadband operation module; All be provided with the band pass filter of corresponding each working frequency range and working frequency points at the carrier frequency signal of telecommunication input/output terminal of each broadband operation module; Digital multiplexer and digital multi-channel demodulation multiplexer are arranged in the optical transmission system; Like this can be for more digital radio intercom system provide relay transmission, and can reduce cost of the present invention, convenient enforcement.
The present invention can also be that transmission logic controller at digital intercommunication trunking is shown in accompanying drawing 2; Fig. 2 is the transmission logic controller electrical schematic diagram in the digital intercommunication trunking of one embodiment of the invention; An adjusted digital signal delayer d, an electronic switch e, a D/A converter c are wherein arranged; Described D/A converter c is for realizing digital signal is converted into the module device of direct current signal; The output of adjusted digital signal delayer d is connected with the transmission signals input of electronic switch e; The output of electronic switch e transmission signals is connected with the digital signal input end of D/A converter c; The switch controlling signal input a of electronic switch e in the dc output end b of D/A converter c and another transmission logic controller is connected, and the transmission signals contact of electronic switch is static closed operating state, adopts hardware device that the receiving digital signals of wireless digital intercommunication transceiver and optical transmission system is carried out direct determination processing like this; Can reduce cost of the present invention like this, convenient enforcement.
Digital intercommunication trunking of the present invention; Can also be that electronic switch in the CF signal transmission logic controller in the described therein digital intercommunication trunking has more than two; And the electronic switch signal input/output terminal is in series connection; Its quantity is corresponding with the quantity that the wireless digital signal reception in this numeral intercommunication trunking is imported; Can make that application of the present invention is more flexible, and can avoid it to influence each other so that the present invention can be used to have the networking of a pair of multiple spot to use like this.
Digital intercommunication trunking of the present invention; An operating state data collector, an instruction processing unit can also be arranged; The signal input output end of operating state data collector and instruction processing unit respectively with digital intercommunication trunking in multiplexer, the signal of telecommunication input/output terminal of demultiplexing device in the microprocessing systems, digital radio intercommunication transceiver, transmission logic controller, optical transmission system be connected respectively; This operating state data collector is gathered the working status parameter of each module and is sent to long distance control system through optical transmission system and stores and show; Instruction processing unit is through the operational order and the running parameter of optical transmission system receiving remote supervisory control system; And each functional module level device in the digital intercommunication trunking carried out the control of running parameter setting and operating state; Can realize remote measurement and remote control like this, convenient practical application of the present invention to digital intercommunication trunking.
The present invention has introduced a kind of digital intercommunication trunking that is made up of optical transmission system, power supply, microprocessing systems, antenna feeding system, digital radio intercommunication transceiver, said optical transmission system, synchronous signal processor, signal transmission logic controller, receiving digital signals power splitter, digital data transmission direction power splitter, digital transmission signal power splitter, emission digital signal mixer, emission digital data transmission direction mixer, digital transmission signal mixer, multiplexer, demultiplexing device; Realized a kind of digital intercommunication relay transmission method; Can when other digital handsets to the optional position make a call and communicate by letter, provide relay transmission to connect for the digital handset of the optional position that is in the feeble field district, and solve the stationary problem in relay transmission and the back coupling self-excitation problem when under the TDMA pattern, working.
Claims (9)
1. digital intercommunication relay transmission method; Include the method for work that realizes by the digital radio intercommunication transceiver in a plurality of wireless relay transmission equipments, the wireless relay transmission equipment, microprocessor, forwarding transmission logic controller, long distance control system and optical transmission system; It is characterized in that in wireless relay transmission equipment and digital radio intercommunication transceiver wherein, being provided with radio transmitted power regulating command sign indicating number, address code, adjacent station reception permissible value, and select to adopt following method of work:
(1) produces circuit transmitting synchronous clock sign indicating number by some digital intercommunication trunkings; Launch as reception, transmission and the channel synchronization clock sign indicating number of digital radio intercommunication transceiver with this circuit transmitting synchronous clock sign indicating number; And this circuit transmitting synchronous clock sign indicating number sent to other digital intercommunication trunking through optical transmission system, other digital intercommunication trunking is also launched this circuit transmitting synchronous clock sign indicating number as the synchronised clock sign indicating number of reception, emission and the channel of digital radio intercommunication transceiver;
(2) the wireless receiving CF signal that digital intercommunication trunking is received carries out demodulation process and obtains receiving digital signals; The strength signal of the wireless receiving CF signal that it is corresponding carries out obtaining corresponding reception carrier frequency intensity sign indicating number after the digitized processing; To receive carrier frequency intensity sign indicating number and corresponding address sign indicating number through optical transmission system sends to a plurality of other digital intercommunication trunkings through optical transmission system; When the transmission logic controller allows; This receiving digital signals is carried out wireless transmit through digital radio intercommunication transceiver, and the transmission method that this receiving digital signals is sent to other other digital intercommunication trunkings through optical transmission system;
(3) transmission method that sends to other other digital intercommunication trunkings through optical transmission system of the digital intercommunication trunking receiving digital signals that will send through other digital intercommunication trunkings that optical transmission system is received; When the transmission logic controller allows, this receiving digital signals is carried out the transmission method of wireless transmit through digital radio intercommunication transceiver;
(4) digital intercommunication trunking is handled corresponding reception carrier frequency intensity sign indicating number and the time of reception that address code characterized, corresponding value and receiving position that the correspondence that obtains receives carrier frequency intensity sign indicating number and the digital signal that receives through optical transmission system with the wireless receiving CF signal that receives and is compared and judge; According to relatively reaching result of determination control transmission logic controller operating state, the wireless receiving of selecting in above-mentioned (2) or (3) digital intercommunication trunking to be received is exported the method for transmission processing that digital signal reaches the digital signal of receiving through optical transmission system;
(5) digital intercommunication trunking receives radio transmitted power regulating command sign indicating number and corresponding address sign indicating number thereof through wireless digital transceiver or optical transmission system, and according to this command code and address code the carrier frequency power of digital radio intercommunication transceiver in the digital intercommunication trunking of correspondence is regulated; Radio transmitted power regulating command sign indicating number and corresponding address sign indicating number thereof are produced and are sent by other digital radio intercommunication transceivers or long distance control system;
(6) the transmitting carrier frequency signal strength signal intensity of digital intercommunication trunking adjacent digital intercommunication trunking that the wireless digital transceiver is received is measured; When the transmitting carrier frequency signal strength signal intensity of this numeral intercommunication trunking that receives is stood the reception permissible value above the neighbour who sets; Send transmission power adjustment command code and corresponding address sign indicating number through optical transmission system; After adjacent digital intercommunication trunking receives transmission power adjustment command code and corresponding address sign indicating number through optical transmission system; The transmitting carrier frequency signal power of the digital intercommunication transceiver of correspondence is reduced the neighbour that the transmitting carrier frequency signal strength signal intensity of the adjacent digital intercommunication trunking that receives until digital intercommunication trunking the is lower than setting reception permissible value of standing;
(7) described optical transmission system adopts multiplexed transmission method to the digital data transmission of digital intercommunication trunking.
2. digital intercommunication relay transmission method as claimed in claim 1; It is characterized in that the propagation delay time of the signal that transmits through optical transmission system between each digital intercommunication trunking is measured; And according to each propagation delay time on circuit transmitting synchronous clock sign indicating number datum mark, giving compensating equalization respectively the launch time of the synchronised clock sign indicating number of reception, emission and the channel of the digital radio intercommunication transceiver in each digital intercommunication trunking; The reception of digital radio intercommunication transceiver synchronized transmission, emission and channel synchronization clock sign indicating number reach wireless receiving, emission and the synchronous method of work of channel time slot distributing uniform in each digital intercommunication trunking.
3. digital intercommunication relay transmission method as claimed in claim 1; Include gps satellite time dissemination system, operating state data collector and method of work that long distance control system realized; It is characterized in that described circuit transmitting synchronous clock sign indicating number is produced by the gps satellite time dissemination system; The working status parameter of each module is gathered and send to long distance control system through the operating state data collector through light transmission transmitter; Through the operational order and the running parameter of optical transmission system receiving remote supervisory control system, and the method for work of each functional module in the digital intercommunication trunking and device being carried out running parameter setting and operating state control.
4. digital intercommunication trunking; Including optical transmission system, power supply, microprocessing systems, antenna feeding system, digital radio intercommunication transceiver, said optical transmission system is meant by optical fiber, optical branching device, photoelectricity and sends transducer and the photoelectricity receiving converter constitutes; It is characterized in that having a synchronous signal processor, two transmission logic controllers, a receiving digital signals power splitter, a digital side signal transmission to power splitter, two digital data transmission power splitters, an emission digital signal mixer, an emission digital data transmission direction mixer, two digital data transmission mixers, two multiplexers, two demultiplexing devices; The receiving digital signals output of digital radio intercommunication transceiver is connected with the input of a transmission logic controller; The output of this transmission logic controller is connected with the input of receiving digital signals power splitter; The merit of receiving digital signals power splitter divides output to be connected with an input, the digital data transmission direction power splitter input of emission digital signal mixer respectively; The merit of digital data transmission direction power splitter divides an input of different with two the respectively digital data transmission mixer of output to be connected; The output of two digital data transmission mixers respectively two be connected with an input of different multiplexer; The output of two demultiplexing devices is connected with the input of different two digital data transmission power splitters respectively; Two digital data transmission power splitters merit separately divides an input of different with two the respectively digital transmission signal mixer of output to be connected; Two digital data transmission power splitters another merit separately divides output to be connected with the different input of emission digital data transmission direction mixer respectively; The output of emission digital data transmission direction mixer and the input of another transmission logic controller be connected; The output of this transmission logic controller is connected with another input of emission digital signal mixer; The output of emission digital signal mixer is connected with the emission digital signal input end of digital radio intercommunication transceiver; The synchronizing signal input/output terminal of synchronous signal processor is connected with synchronous signal input end, multiplexer digital signal output end, the demultiplexing device digital signal output end of digital transceiver respectively, and one group of reception carrier frequency strength signal output, multiplexer and the demultiplexing device of the operating state of the operating state of the operating state of synchronous signal processor and control input/output terminal, transmission logic controller and control input/output terminal, digital radio intercommunication transceiver and control input/output terminal, digital radio intercommunication transceiver transmits and controls input/output terminal and is connected with the work control input/output terminal of microprocessing systems respectively.
5. digital intercommunication trunking as claimed in claim 4; It is characterized in that having in the wherein said digital intercommunication trunking a plurality of different operating frequencies digital intercommunication radio receiving-transmitting unit, a plurality of transmission logic controllers, a plurality of receiving digital signals power splitter, a plurality of digital data transmission direction power splitter, a plurality of digital data transmission power splitter, a plurality of emission digital signal mixer, a plurality of emission digital data transmission direction mixer, a plurality of digital data transmission mixer, a satellite gps receiver are arranged, the output of the time service clock of satellite gps receiver is connected with the synchronous signal input end of synchronous signal processor.
6. digital intercommunication trunking as claimed in claim 4; It is characterized in that the digital radio intercommunication transceiver module in the wherein said digital intercommunication trunking is the broadband operation module; All be provided with the band pass filter of corresponding each working frequency range and working frequency points at the carrier frequency signal of telecommunication input/output terminal of each broadband operation module, two digital multiplexers and two digital demultiplexing devices are arranged in the optical transmission system.
7. digital intercommunication trunking as claimed in claim 4; It is characterized in that an adjusted digital signal delayer is arranged in the described transmission logic controller, an electronic switch, a D/A converter; The output of adjusted digital signal delayer is connected with the transmission signals input of electronic switch; The output of electronic switch transmission signals is connected with the digital signal input end of D/A converter; The switch controlling signal input of the electronic switch in the dc output end of D/A converter and another transmission logic controller is connected, and the transmission signals contact of electronic switch is static closed operating state.
8. digital intercommunication trunking as claimed in claim 7; It is characterized in that the electronic switch in the CF signal transmission logic controller in the wherein said digital intercommunication trunking has more than two; And the electronic switch signal input/output terminal is in series connection, and its quantity is corresponding with the quantity that the digital signal reception in this numeral intercommunication trunking is imported.
9. digital intercommunication trunking as claimed in claim 4; It is characterized in that having an operating state data collector, an instruction processing unit, the signal input output end of operating state data collector and instruction processing unit respectively with digital intercommunication trunking in multiplexer, the signal of telecommunication input/output terminal of demultiplexing device in the microprocessing systems, digital radio intercommunication transceiver, transmission logic controller, optical transmission system be connected respectively.
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| CN2011104426160A CN102523027A (en) | 2011-12-27 | 2011-12-27 | Digital talkback relay transmission method and digital talkback relay equipment |
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| CN2011104426160A CN102523027A (en) | 2011-12-27 | 2011-12-27 | Digital talkback relay transmission method and digital talkback relay equipment |
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| CN102523027A true CN102523027A (en) | 2012-06-27 |
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