CN101771472B - Link-type optical fiber repeater signal transmission method and link-type optical fiber repeater - Google Patents
Link-type optical fiber repeater signal transmission method and link-type optical fiber repeater Download PDFInfo
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Abstract
The invention introduces a link-type optical fiber repeater signal transmission method and a link-type optical fiber repeater which comprise a power supply, a microprocessor, an antenna feeder system, a wireless receiver, a wireless transmitter, an outside optical fiber, a mixer, a power divider, an optical splitter, an optical transmitter, an optical receiver and the like, so that the optical fiber repeater can offer wireless communication relay transmission services to various wireless communication system users in special areas and tunnels, can meet the requirements of reducing the number of used optical fibers, the interference and isolation among systems and the like, so as to realize the long-distance optical transmission relay among optical fiber repeaters when there are a plurality of optical fiber repeater links, and be able to adapt to the relay transmission of various wireless communication systems.
Description
Technical field
The present invention is radio communication relay transmission technology, is applicable to the relay transmission to the wireless communication system of feeble field section, belongs to wireless communication technology field.
Background technology
In present wireless system, have the various wireless communication system, such as GSM, WCDMA, TD-SCDAM, CDMA2000, the wireless communication systems such as intercommunication private network, in existing technology, above-mentioned wireless communication system there is special-purpose separately optical fiber repeater as trunking, but in some special area and tunnel, because the network planning of each wireless communication system is inconsistent, the base station location of each system, the number of fibers restriction, the number of links of optical fiber repeater, light transmission route length and user distribution are inconsistent, phase mutual interference and system interval are from the impact of the factors such as degree requirement, in these zones, therefore all trunkings all can not be installed on the relaying demand of wherein removing to satisfy each wireless communication system, existing optical fiber repeater can not satisfy in such zone the trunking traffic requirement to each wireless communication system user.
Summary of the invention
In view of the foregoing, the object of the present invention is to provide a kind of linked fiber optic repeater method for transmitting signals and linked fiber optic repeater, so that optical fiber repeater can provide the service of radio communication relay transmission for the various types of wireless communication systems user who is in special area and the tunnel, satisfy to reduce and use number of fibers, phase mutual interference and satisfy system interval from requirements such as degree between the minimizing system, when a plurality of optical fiber repeater link is arranged, can realize the long haul optical transmission relaying between the optical fiber repeater, and have the advantages that to be applicable to the various wireless communication system is carried out relay transmission.
For achieving the above object, the present invention introduces a kind of linked fiber optic repeater method for transmitting signals of being realized by the linked fiber optic repeater of power supply, microprocessor, antenna-feedback system, a plurality of wireless receiver, a plurality of transmitting set, outside line optical fiber, mixer, power splitter, optical branching device, light transmission transmitter and light transmission receiver, it is characterized in that described linked fiber optic repeater adopts following signal transmission and microprocessor control method of work:
(1) the reception carrier frequency frequency variation signal that the wireless signal frequency conversion that each wireless receiver is received and filtering are processed into different frequency is exported, and is controlled respectively amplitude-frequency and the time-delay characteristics parameter of the reception carrier frequency frequency variation signal of adjusting each output by microprocessor;
(2) the above-mentioned signal of telecommunication that each receives carrier frequency frequency variation signal and light transmission receiver output being closed Lu Houzai is launched by the CF signal that each transmitting set frequency conversion and filtering are treated as different frequency respectively again;
(3) above-mentioned each being received carrier frequency frequency variation signal and subcarrier transmission control reconciles device modulated output signal processed and closes and be converted to light signal by light transmission transmitter behind the road and export;
(4) after the input optical signal shunt with a certain outside line optical fiber, one tunnel optical signal transmission is to the light signal input of light transmission receiver, and another road light signal closes the road by optical signal amplifier amplification output optical signal rear and light transmission transmitter and is transferred to another root outside line optical fiber again;
(5) microprocessor testing result that each the road signal that is input to each transmitting set input is carried out amplitude-frequency and time-delay characteristics parameter is encoded and is obtained each emission input signal characteristics parameter code and corresponding systematic code, address code, and this emission input signal characteristics parameter code that will obtain and corresponding systematic code, that address code is reconciled device modulation processed by subcarrier transmission control is rear by the transmission of the outside linear light fibre of optical transmission system; Microprocessor receives emission output signal characteristics parameter code and corresponding systematic code, the address code that obtains to be received and reconciled by subcarrier transmission control by optical transmission system device demodulation output processed;
(6) correspondence system of microprocessor each emission input signal characteristics parameter code and the setting that will obtain is launched input signal work and is compared with reference to the characterisitic parameter code and judge, adjusts accordingly according to amplitude-frequency and the time-delay characteristics parameter of judgement situation to the reception output signal of the wireless receiver of correspondence;
(7) under microprocessor control, the optical carrier that is input to light transmission transmitter is selected by the optical carrier that outside line optical fiber is inputted or local optical carrier generator is exported, and with the fine output of the outside linear light of local optical carrier generator optical carrier output, non-modulated.
For realizing above-mentioned linked fiber optic repeater method for transmitting signals, the present invention also introduces a kind of linked fiber optic repeater, it is characterized in that having a plurality of characteristics of signals parametric detectors, a plurality of programmable signal amplitude-frequencies and time-delay characteristics parameter adjuster, a wireless receiving signal combiner, a wireless receiving signal power divider, a wireless transmission signal mixer, a wireless transmission signal power splitter, a subcarrier transmission is reconciled device processed, a transmission direction optical branching device, two outside line optical branching devices, two optical signal amplification transmission branch devices, two optical signal amplifiers, the reception signal output part of each wireless receiver is connected with the signal input part of each programmable signal amplitude-frequency and time-delay characteristics parameter adjuster respectively, the modulation signal output that the signal output part of each programmable signal amplitude-frequency and time-delay characteristics parameter adjuster and subcarrier transmission are reconciled device processed is connected with each branch's input of wireless receiving signal combiner respectively, the road output that closes of wireless receiving signal combiner is connected with the input of wireless receiving signal power divider, a merit of wireless receiving signal power divider divides output to be connected with the electric signal input end of light transmission transmitter, another merit of wireless receiving power splitter divides output to be connected with an input of wireless transmission signal mixer, another input of wireless transmission signal mixer is connected with the electrical signal of light transmission receiver, the road output that closes of wireless transmission signal mixer is connected with the input of wireless transmission signal power splitter, each merit of wireless transmission signal power splitter divide output respectively with the signal transmission input of each transmitting set, the CF signal input that the signal input part of each characteristics of signals parametric detector and subcarrier transmission are reconciled device processed is connected, the terminal of closing of light transmitting-receiving branch mixer is connected with the terminal of closing of transmission direction optical branching device, the branch end of transmission direction optical branching device is connected from a branch end of different outside line optical branching device respectively, a branch end of each outside line optical branching device is connected from the terminal of closing of different optical signal amplification transmission branch device respectively, a branch end of optical signal amplification transmission branch device is connected with the input of a light transmission amplifier, the output of this light transmission amplifier is connected with a branch end of another optical signal amplification transmission branch device, the terminal of closing of each outside line optical branching device connects the detection signal output of each characteristics of signals parametric detector from different outside line optical fiber respectively, the data input/output terminal that the programmable signal input of each programmable signal amplitude-frequency and time-delay characteristics parameter adjuster and subcarrier transmission are reconciled device processed is connected with the microprocessor-based control input/output terminal respectively;
Operation principle of the present invention is: each wireless receiver that is operated in different frequency range and standard is all worked out corresponding systematic code and address code, each wireless receiver that is operated in different frequency range and standard is exported after with the wireless signal that receives, by the low-converter that arranges in the wireless receiver, the processing to received signal of filter and upconverter, improve system interval from the degree index, improve the isolation between each system, and the wireless signal of exporting after to each frequency conversion and filtering by programmable signal amplitude-frequency and time-delay characteristics parameter adjuster carries out the characterisitic parameter adjustment, closed by the reception of wireless signals mixer through each output signal after adjust processing and to be transferred to respectively light transmission transmitter by optical branching device behind the road and to change light signal into and be transferred to the wireless signal transmission mixer, the signal that is transferred to the wireless signal transmission mixer is assigned to the transmitting set that each is operated in different frequency range and standard by the wireless signal power splitter after closing the road with the signal of telecommunication by the output of Optical Fiber Transmission receiver, by the low-converter that arranges in the transmitting set, filter and upconverter are improved system interval from the degree index, improve the isolation between each system, respectively input signal is launched by wireless transmission method by each transmitting set again; Optical signals optical branching device by the input of outside line optical fiber carries out allocation process, one route image intensifer amplifies light signal rear and light transmission transmitter output and closes the road, again to another outside line Optical Fiber Transmission, another route light transmission receiver receives and is converted to corresponding signal of telecommunication output, the signal of telecommunication that is input to light transmission transmitter is converted to by light transmission transmitter and carries out allocation process by splitter behind the corresponding light signal and send light signal to each external optical fiber, in transmission course, the reception signal characteristic parameter that microprocessor will be input in each transmitting set that is operated in different frequency range and standard detects, such as amplitude, Frequency Response, time-delay etc., and these parameters are encoded obtain receiving signal parameter code and corresponding systematic code, address code, to receive signal parameter code and corresponding systematic code by subcarrier transmission control conciliation device processed and optical transmission system, address code is transferred to other linked fiber optic repeater, also reconcile device processed and optical transmission system by subcarrier transmission control and receive reception signal parameter code that other linked fiber optic repeater sends and the systematic code of correspondence, address code, reception signal parameter code and corresponding systematic code with these acquisitions, each emission input signal work amplitude-frequency of address code and setting and time-delay etc. compare with reference to the characterisitic parameter code, judge and processing, according to the purpose of processing instruction by the adjustment realization of programmable signal amplitude-frequency and time-delay characteristics parameter adjuster is adjusted the output signal characteristics parameter of the wireless receiver of correspondence, to satisfy the desired amplitude of transmission, spectral characteristic, the conditions such as time-delay; Under the detection and control of microprocessor, be input to the optical carrier selection of light transmission transmitter by the optical carrier of the input of outside line optical fiber or the output of local optical carrier generator, when local optical carrier generator output optical carrier, with the fine output of the outside linear light of local optical carrier generator optical carrier output, non-modulated, like this can be so that the shared same optical carrier of a plurality of optical fiber repeaters on same transmission link, and have good net synchronization capability, reduce the phase mutual interference of light signal in mixed transfer; Operation principle by above-mentioned introduction can be found out, the isolation that can improve between system of the present invention, phase mutual interference between the minimizing system, in optical transmission system, light signal had mixed transfer and through type amplifying power, and wireless receiving output signal characteristic parameter had self-adjusting ability, therefore can adapt to the relay transmission demand of different system and transmission range.
Description of drawings
Fig. 1 is the electrical schematic diagram of the linked fiber optic repeater of one embodiment of the invention.
Fig. 2 is the groundwork flow chart of the linked fiber optic repeater of one embodiment of the invention.
Fig. 3 is the electrical schematic diagram of optical carrier source controller of the linked fiber optic repeater of one embodiment of the invention.
Fig. 4 is the electrical schematic diagram of the another kind of form of linked fiber optic repeater of the present invention.
The identical part of numbering is identical function element and module among each figure.
Embodiment
Below as an example of accompanying drawing example the explanation embodiments of the invention:
Fig. 1 is the linked fiber optic repeater electrical schematic diagram of one embodiment of the invention, by power supply, microprocessor, antenna-feedback system, a plurality of wireless receivers, a plurality of transmitting sets, optical fiber, mixer, power splitter, optical branching device, the formation such as light transmission transmitter and light transmission receiver, it is characterized in that having a plurality of characteristics of signals parametric detectors, a plurality of programmable signal amplitude-frequencies and time-delay characteristics parameter adjuster, a wireless receiving signal combiner, a wireless receiving signal power divider, a wireless transmission signal mixer, a wireless transmission signal power splitter, a subcarrier transmission is reconciled device processed, a transmission direction optical branching device, two outside line optical branching devices, two optical signal amplification transmission branch devices, two optical signal amplifiers, among Fig. 1: 1-1～1-n is wireless receiver, adopt conventional wireless receiver, and low-converter is set therein, filter and upconverter are provided by wherein filter and to satisfy system interval from the degree index; 2 is microprocessor, adopts conventional Single Chip Microcomputer (SCM) system to get final product; 3-1～3-n is transmitting set, adopts conventional transmitting set, and low-converter, filter and upconverter are set therein, is provided by wherein filter and satisfies system interval from the degree index; 4-1～4-n is programmable signal amplitude-frequency and timer, adopt the formations such as attenuator able to programme, programmable equalizer and programmable delayer, be implemented in the parameters such as the lower intensity to output signal of microprocessor control, amplitude-frequency equilibrium and time-delay feature and carry out adjustment able to programme; 5-1～5-n is the characteristics of signals parametric detector, adopts the module and the circuit that have the characteristic parameters such as intensity, amplitude-frequency equilibrium and time-delay to its input signal to detect and export to consist of; 6 is the wireless receiving signal combiner, adopts conventional mixer; 7 for subcarrier transmission control conciliation device processed, adopts conventional modulator-demodulator; 8 is the wireless transmission signal power splitter, adopts conventional power splitter; 9 is the wireless receiving signal power divider, adopts conventional power splitter; 10 is light transmission transmitter, adopts optical modulator module to consist of; 11 is light transmission receiver, adopts the optical demodulator module composition; 12 is the wireless transmission signal mixer, adopts conventional power splitter; 13 is optical signal transceiver branch mixer, adopts conventional optical branching device; 14 are the transmission direction optical branching device, adopt conventional optical branching device; 15,21 is external outside line optical fiber, adopts common communications optical fiber; 16,20 are the outside line optical branching device, adopt conventional optical branching device; 17,19 is optical signal amplification transmission branch device, adopts conventional optical branching device; 18,22 is optical signal amplifier, adopts opto-electronic conversion-functional modules such as signal of telecommunication amplification-electric light conversion to combine; The reception signal output part of each wireless receiver is connected with the signal input part of each programmable signal amplitude-frequency and time-delay characteristics parameter adjuster respectively, the modulation signal output that the signal output part of each programmable signal amplitude-frequency and time-delay characteristics parameter adjuster and subcarrier transmission are reconciled device processed is connected with each branch's input of wireless receiving signal combiner respectively, the road output that closes of wireless receiving signal combiner is connected with the input of wireless receiving signal power divider, a merit of wireless receiving signal power divider divides output to be connected with the electric signal input end of light transmission transmitter, another merit of wireless receiving power splitter divides output to be connected with an input of wireless transmission signal mixer, another input of wireless transmission signal mixer is connected with the electrical signal of light transmission receiver, the road output that closes of wireless transmission signal mixer is connected with the input of wireless transmission signal power splitter, each merit of wireless transmission signal power splitter divide output respectively with the signal transmission input of each transmitting set, the CF signal input that the signal input part of each characteristics of signals parametric detector and subcarrier transmission are reconciled device processed is connected, the terminal of closing of light transmitting-receiving branch mixer is connected with the terminal of closing of transmission direction optical branching device, the branch end of transmission direction optical branching device is connected from a branch end of different outside line optical branching device respectively, a branch end of each outside line optical branching device is connected from the terminal of closing of different optical signal amplification transmission branch device respectively, a branch end of optical signal amplification transmission branch device is connected with the input of a light transmission amplifier, the output of this light transmission amplifier is connected with a branch end of another optical signal amplification transmission branch device, the terminal of closing of each outside line optical branching device connects the detection signal output of each characteristics of signals parametric detector from different outside line optical fiber respectively, the data input/output terminal that the programmable signal input of each programmable signal amplitude-frequency and time-delay characteristics parameter adjuster and subcarrier transmission are reconciled device processed is connected with the microprocessor-based control input/output terminal respectively.
Fig. 2 is the main program figure of microprocessor of the linked fiber optic repeater of one embodiment of the invention;
Wherein groundwork flow process is:
(1) microprocessor system startup, initialization; Systematic code corresponding to each wireless receiver, address code are set; The corresponding emission input signal of each systematic code and address code work amplitude-frequency and time-delay etc. are set with reference to the characterisitic parameter code; Local optical carrier generator pro-jobs level code is set;
(2) according to whether receiving optical carrier and local optical carrier generator pro-jobs level code, determine whether local optical carrier generator is worked or is adopted optical carrier that outside line optical fiber inputs as the light CF signal source of light transmission transmitter in the machine; If the machine optical carrier generator pro-jobs level code is high-grade code, then start the work of local optical carrier generator, and with the fine output of the outside linear light of local optical carrier generator optical carrier output, non-modulated, otherwise open image intensifer work and adopt the optical carrier of outside line optical fiber input as the light CF signal source of light transmission transmitter in the machine; If the machine optical carrier generator pro-jobs level code is the inferior grade code, and do not receive the optical carrier of outside line optical fiber input, then start local optical carrier generator as the light CF signal source of light transmission transmitter in the machine, and with the fine output of the outside linear light of local optical carrier generator optical carrier output, non-modulated;
(3) with the detection signal coding of the characteristic parameters such as the amplitude-frequency of each transmitting set input signal by characteristics of signals parametric detector output and time-delay, obtain each emission input signal characteristics parameter code and correspondence system code, address code, send this emission input signal characteristics parameter code and corresponding systematic code, address code by subcarrier transmission control conciliation device modulation processed and optical transmission system to other optical fiber repeaters; Receive the emission input signal condition code and corresponding systematic code, the address code that obtain to be reconciled by optical transmission system transmission input and subcarrier transmission control by other optical fiber repeaters device demodulation output processed;
The emission input signal work of the emission input signal characteristics parameter code that (4) will obtain and the correspondence system code of setting, address code compares judgement with reference to the characterisitic parameter code, meet and then enter above-mentioned (3), do not meet and then generate processing instruction and enter following (5);
(5) according to processing instruction programmable signal amplitude-frequency and the time-delay characteristics parameter adjuster of correspondence are adjusted, realized the corresponding wireless receiver output signal of Adjustment System code characteristic parameter; Then get back to above-mentioned (2).
The linked fiber optic repeater method for transmitting signals of one embodiment of the invention and the groundwork method of linked fiber optic repeater are as follows:
(1) each wireless receiver is exported the reception carrier frequency frequency variation signal that the wireless signal frequency conversion that receives and filtering are processed into different frequency, and is adjusted amplitude-frequency and the delay parameter of the reception carrier frequency frequency variation signal of each output by controlling respectively programmable signal amplitude-frequency and timer by microprocessor;
(2) the above-mentioned signal of telecommunication that each receives carrier frequency frequency variation signal and light transmission receiver output is closed the road by wireless transmission signal input mixer after, finger assignments is to each transmitting set respectively by the wireless transmission signal power splitter, and the CF signal that is treated as different frequency by each transmitting set frequency conversion and filtering is launched again;
(3) above-mentioned each being received carrier frequency frequency variation signal and subcarrier transmission control reconciles device modulated output signal processed and closes and be converted to light signal by light transmission transmitter behind the road and export;
(4) with the input optical signal of a certain outside line optical fiber by the outside line optical branching device along separate routes after, one tunnel optical signal transmission is carried out reception ﹠ disposal to the light signal input of light transmission receiver, and another road light signal is transferred to another root outside line optical fiber after closing the road by light transmission amplifier amplification optical signals outside line optical branching device rear and light transmission transmitter.
According to above-mentioned explanation and each functional module of illustrated arrangement, components and parts, join dependency device blocks, can finish enforcement of the present invention by the method for work that above-mentioned workflow establishment Single Chip Microcomputer (SCM) program and the present invention introduce.
The present invention has an optical carrier source controller in linked fiber optic repeater, an outside line optical carrier input mixer is arranged in the described optical carrier source controller, an outside line and local optical carrier input mixer, a local optical carrier output branch device, an optical signal amplifier, two outside line optical fiber branch devices, a local optical carrier generator, an optical carrier source control microprocessor, as shown in Figure 3, wherein: 10 are investigation mission outside the city or town standard optical modulator, A is the optical carrier source controller, 23 are optical carrier source control microprocessor, 24 are outside line and local optical carrier input mixer, 25 is optical signal amplifier, 26 are outside line optical carrier input mixer, 27,30 are outside line optical fiber, 28,29 are the outside line optical fiber branch device, 31 is local optical carrier output branch device, and 32 is local optical carrier generator; Branch's input of outside line optical carrier input mixer is connected from a branch end of different outside line optical fiber branch device respectively, the road output that closes of outside line optical carrier input mixer is connected with the input of optical signal amplifier, branch's output of the output of optical signal amplifier and local optical carrier output branch device is connected with branch's input of outside line with local optical carrier input mixer respectively, outside line is connected with the optical carrier input of light transmission transmitter with the road output that closes of local optical carrier input mixer, wherein, light transmission transmitter adopts the investigation mission outside the city or town standard, the output of local optical carrier generator is connected with the road input that closes of local optical carrier output branch device, other branch's outputs of local optical carrier output branch device are connected from a branch end of different outside line optical fiber branch device respectively, the terminal of closing of different outside line optical fiber branch devices is connected from different outside line optical fiber, a branch end of the outside line optical fiber branch device that a branch end of outside line optical fiber branch device is different from another is connected, and the operating state of optical signal amplifier and local optical carrier generator and control inputs output are connected with the job control input/output terminal of optical carrier source control microprocessor respectively; Each optical branching device and mixer provide the transmission channel of optical carrier, detect and control by the operating state control of control microprocessor in optical carrier source to optical signal amplifier and local optical carrier generator, realize that the optical carrier selection of light transmission transmitter is by the optical carrier of the input of outside line optical fiber or the output of local optical carrier generator, or local optical carrier generator is exported, the fine output of the outside linear light of the optical carrier of non-modulated, like this can be so that the optical carrier of the optical fiber repeater on same transmission link has good net synchronization capability, reduce the phase mutual interference in the transmission, so that the present invention has good applicability.
Can also to be linked fiber optic repeater method for transmitting signals and linked fiber optic repeater receive carrier frequency frequency variation signal, light transmission with each receives the signal of telecommunication of output and subcarrier transmission control and reconcile and be converted to the fine transmission of the outside linear light of light signal after device modulated output signal processed closes the road in the present invention, can so that the light signal phase mutual interference in transmission line decreases, be convenient to enforcement of the present invention like this.
The present invention can also be in linked fiber optic repeater, include wireless receiver, microprocessor, transmitting set, programmable signal amplitude-frequency and timer, the characteristics of signals parametric detector, the wireless receiving signal combiner, device processed is reconciled in subcarrier transmission control, the wireless transmission signal power splitter, the wireless receiving signal power divider, light transmission transmitter, light transmission receiver, wireless transmission signal mixer (accompanying drawing 1, parts shown in the label 1～12 in 4), it is characterized by a wireless receiving flashlight transmission power splitter, a light transmission receives signal combiner, two light transmission receive signal power divider, two light transmission send mixer, as shown in Figure 4, wherein: 33 are wireless receiving flashlight transmission power splitter, 34 are light transmission reception signal combiner, 35,42 is light transmission receiver, 36,41 are light transmission reception signal power divider, 37,40 are light transmission transmission mixer, 38,39 is light transmission transmitter, identical among the function element of other numbering expressions and module and Fig. 1, a merit of wireless receiving signal power divider wherein divides output to be connected with the input of wireless receiving flashlight transmission power splitter, the output of wireless receiving flashlight transmission power splitter is connected from branch's input of different light transmission transmitted signal mixer respectively, another branch's input of light transmission transmitted signal mixer is connected with branch's output that a light transmission receives signal power divider, the terminal of closing of light transmission transmitted signal mixer is connected with the electric signal input end of light transmission transmitter, branch's input that light transmission receives signal combiner is connected from branch's output that different light transmission receives signal power divider respectively, the terminal of closing that the light transmission receives signal combiner is connected with branch's input of wireless transmission signal mixer, the electrical signal of light transmission receiver is connected with the input that the light transmission receives signal power divider, the light signal input of light transmission receiver and the light signal output end of light transmission transmitter are connected from the different branch end of outside line optical branching device respectively, can so that the light signal phase mutual interference in transmission line decreases, be convenient to enforcement of the present invention like this.
The present invention can also be the band pass filter that each branch end of wireless receiving signal combiner in linked fiber optic repeater and wireless transmission signal power splitter is serially connected with the different operating frequency range, processing by band pass filter, can be so that the present invention improves isolation between each wireless communication system, reduce inter-system interference, make to the invention provides better application index and widely application.
The present invention has a plurality of transmission direction optical branching devices, a plurality of outside line optical branching device, a plurality of optical signal amplification transmission branch device in linked fiber optic repeater, can so that the present invention have the ability of multi-direction external outside line optical fiber, the present invention can be had widely use like this.
The present invention can also be that the working state signal output with each wireless receiver is connected with one group of control signal input of microprocessor respectively, microprocessor compares with reference to the characterisitic parameter code and judges each emission input signal characteristics parameter code of obtaining and correspondence system of setting being launched input signal work, amplitude-frequency and the time-delay characteristics parameter carried out the reception output signal of the wireless receiver of correspondence according to the operating state situation of judgement situation and corresponding wireless receiver adjust accordingly, do like this and can so that control function of the present invention is more accurate, improve result of use of the present invention.
The present invention has introduced a kind of by power supply, microprocessor, antenna-feedback system, wireless receiver, transmitting set, outside line optical fiber, mixer, power splitter, optical branching device, linked fiber optic repeater method for transmitting signals and linked fiber optic repeater that light transmission transmitter and light transmission receiver etc. consist of, so that optical fiber repeater can provide the service of radio communication relay transmission for the various types of wireless communication systems user who is in special area and the tunnel, satisfy to reduce and use number of fibers, phase mutual interference and satisfy system interval from requirements such as degree between the minimizing system, when a plurality of optical fiber repeater link is arranged, can realize the long haul optical transmission relaying between the optical fiber repeater, and have the advantages that to be applicable to the various wireless communication system is carried out relay transmission.
Claims (7)
1. linked fiber optic repeater method for transmitting signals, by the method for transmitting signals that the linked fiber optic repeater that includes power supply, microprocessor, antenna-feedback system, a plurality of wireless receiver, a plurality of transmitting set, outside line optical fiber, mixer, power splitter, optical branching device, light transmission transmitter and light transmission receiver is realized, it is characterized in that adopting following signal transmission and microprocessor control method of work:
(1) the reception carrier frequency frequency variation signal that the wireless signal frequency conversion that each wireless receiver is received and filtering are processed into different frequency is exported, and is controlled respectively amplitude-frequency and the time-delay characteristics parameter of the reception carrier frequency frequency variation signal of adjusting each output by microprocessor;
(2) the above-mentioned signal of telecommunication that each receives carrier frequency frequency variation signal and light transmission receiver output being closed Lu Houzai is launched by the CF signal that each transmitting set frequency conversion and filtering are treated as different frequency respectively again;
(3) above-mentioned each being received carrier frequency frequency variation signal and subcarrier transmission control reconciles device modulated output signal processed and closes and be converted to light signal by light transmission transmitter behind the road and export;
(4) after the input optical signal shunt with a certain outside line optical fiber, one tunnel optical signal transmission is to the light signal input of light transmission receiver, and another road light signal closes the road by optical signal amplifier amplification output optical signal rear and light transmission transmitter and is transferred to another root outside line optical fiber again;
(5) microprocessor testing result that each the road signal that is input to each transmitting set input is carried out amplitude-frequency and time-delay characteristics parameter is encoded and is obtained each emission input signal characteristics parameter code and corresponding systematic code, address code, and this emission input signal characteristics parameter code that will obtain and corresponding systematic code, that address code is reconciled device modulation processed by subcarrier transmission control is rear by the transmission of the outside linear light fibre of optical transmission system; Microprocessor receives emission output signal characteristics parameter code and corresponding systematic code, the address code that obtains to be received and reconciled by subcarrier transmission control by optical transmission system device demodulation output processed;
(6) correspondence system of microprocessor each emission input signal characteristics parameter code and the setting that will obtain is launched input signal work and is compared with reference to the characterisitic parameter code and judge, adjusts accordingly according to amplitude-frequency and the time-delay characteristics parameter of judgement situation to the reception output signal of the wireless receiver of correspondence;
(7) under microprocessor control, the optical carrier that is input to light transmission transmitter is selected by the optical carrier that outside line optical fiber is inputted or local optical carrier generator is exported, and with the fine output of the outside linear light of local optical carrier generator optical carrier output, non-modulated.
2. linked fiber optic repeater, it is characterized in that having a plurality of characteristics of signals parametric detectors, a plurality of programmable signal amplitude-frequencies and time-delay characteristics parameter adjuster, a wireless receiving signal combiner, a wireless receiving signal power divider, a wireless transmission signal mixer, a wireless transmission signal power splitter, a subcarrier transmission is reconciled device processed, a transmission direction optical branching device, two outside line optical branching devices, two optical signal amplification transmission branch devices, two optical signal amplifiers, the reception signal output part of each wireless receiver is connected with the signal input part of each programmable signal amplitude-frequency and time-delay characteristics parameter adjuster respectively, the modulation signal output that the signal output part of each programmable signal amplitude-frequency and time-delay characteristics parameter adjuster and subcarrier transmission are reconciled device processed is connected with each branch's input of wireless receiving signal combiner respectively, the road output that closes of wireless receiving signal combiner is connected with the input of wireless receiving signal power divider, a merit of wireless receiving signal power divider divides output to be connected with the electric signal input end of light transmission transmitter, another merit of wireless receiving power splitter divides output to be connected with an input of wireless transmission signal mixer, another input of wireless transmission signal mixer is connected with the electrical signal of light transmission receiver, the road output that closes of wireless transmission signal mixer is connected with the input of wireless transmission signal power splitter, each merit of wireless transmission signal power splitter divide output respectively with the signal transmission input of each transmitting set, the CF signal input that the signal input part of each characteristics of signals parametric detector and subcarrier transmission are reconciled device processed is connected, the terminal of closing of light transmitting-receiving branch mixer is connected with the terminal of closing of transmission direction optical branching device, the branch end of transmission direction optical branching device is connected from a branch end of different outside line optical branching device respectively, a branch end of each outside line optical branching device is connected from the terminal of closing of different optical signal amplification transmission branch device respectively, a branch end of optical signal amplification transmission branch device is connected with the input of a light transmission amplifier, the output of this light transmission amplifier is connected with a branch end of another optical signal amplification transmission branch device, the terminal of closing of each outside line optical branching device connects the detection signal output of each characteristics of signals parametric detector from different outside line optical fiber respectively, the data input/output terminal that the programmable signal input of each programmable signal amplitude-frequency and time-delay characteristics parameter adjuster and subcarrier transmission are reconciled device processed is connected with the microprocessor-based control input/output terminal respectively.
3. linked fiber optic repeater as claimed in claim 2, it is characterized in that having an optical carrier source controller, an outside line optical carrier input mixer is arranged in the described optical carrier source controller, an outside line and local optical carrier input mixer, a local optical carrier output branch device, an optical signal amplifier, two outside line optical fiber branch devices, a local optical carrier generator, an optical carrier source control microprocessor, branch's input of outside line optical carrier input mixer is connected from a branch end of different outside line optical fiber branch device respectively, the road output that closes of outside line optical carrier input mixer is connected with the input of optical signal amplifier, branch's output of the output of optical signal amplifier and local optical carrier output branch device is connected with branch's input of outside line with local optical carrier input mixer respectively, outside line is connected with the optical carrier input of light transmission transmitter with the road output that closes of local optical carrier input mixer, the output of local optical carrier generator is connected with the road input that closes of local optical carrier output branch device, other branch's outputs of local optical carrier output branch device are connected from a branch end of different outside line optical fiber branch device respectively, the terminal of closing of different outside line optical fiber branch devices is connected from different outside line optical fiber, a branch end of the outside line optical fiber branch device that a branch end of outside line optical fiber branch device is different from another is connected, and the working state control input/output terminal of optical signal amplifier and local optical carrier generator is connected with the job control input/output terminal of optical carrier source control microprocessor respectively.
4. linked fiber optic repeater method for transmitting signals as claimed in claim 1 is characterized in that each is received the signal of telecommunication of carrier frequency frequency variation signal, light transmission receiver output and subcarrier transmission control reconciles and be converted to the fine transmission of the outside linear light of light signal after device modulated output signal processed closes the road.
5. linked fiber optic repeater, include wireless receiver, microprocessor, transmitting set, programmable signal amplitude-frequency and timer, the characteristics of signals parametric detector, the wireless receiving signal combiner, device processed is reconciled in subcarrier transmission control, the wireless transmission signal power splitter, the wireless receiving signal power divider, light transmission transmitter, light transmission receiver, the wireless transmission signal mixer, it is characterized in that having a wireless receiving flashlight transmission power splitter, a light transmission receives signal combiner, two light transmission receive signal power divider, two light transmission transmitted signal mixers, a merit of wireless receiving signal power divider divides output to be connected with the input of wireless receiving flashlight transmission power splitter, the output of wireless receiving flashlight transmission power splitter is connected from branch's input of different light transmission transmitted signal mixer respectively, another branch's input of light transmission transmitted signal mixer is connected with branch's output that a light transmission receives signal power divider, the terminal of closing of light transmission transmitted signal mixer is connected with the electric signal input end of light transmission transmitter, branch's input that light transmission receives signal combiner is connected from branch's output that different light transmission receives signal power divider respectively, the terminal of closing that the light transmission receives signal combiner is connected with branch's input of wireless transmission signal mixer, the input that the transmission of the electrical signal of light transmission receiver and light receives signal power divider is connected, and the light signal input of light transmission receiver and the light signal output end of the light transmission transmitter respectively branch end different from the outside line optical branching device are connected.
6. such as claim 2 or 5 described linked fiber optic repeaters, it is characterized in that each branch end of wireless receiving signal combiner in linked fiber optic repeater and wireless transmission signal power splitter is serially connected with respectively the band pass filter of different operating frequency range.
7. the linked fiber optic repeater described in claim 2 or 5 is characterized in that having a plurality of transmission direction optical branching devices, a plurality of outside line optical branching device, a plurality of optical signal amplification transmission branch device in linked fiber optic repeater.
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| CN2010100280127A CN101771472B (en) | 2010-01-05 | 2010-01-05 | Link-type optical fiber repeater signal transmission method and link-type optical fiber repeater |
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| CN2010100280127A CN101771472B (en) | 2010-01-05 | 2010-01-05 | Link-type optical fiber repeater signal transmission method and link-type optical fiber repeater |
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| CN106357340B (en) * | 2016-09-28 | 2018-11-09 | 施淑琴 | The interlinkage transmission method of optical fiber repeater |
| CN112234589B (en) * | 2020-08-26 | 2022-04-29 | 南京云天致信信息科技有限公司 | Surge protection circuit and protection method for mobile base station of Internet of things |
| CN112188447B (en) * | 2020-08-26 | 2021-09-14 | 江苏龙睿物联网科技有限公司 | Internet of things mobile base station communication protection system and protection method |
| CN112468232B (en) * | 2020-11-13 | 2022-10-14 | 锐捷网络股份有限公司 | Control signal transmission system and method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1065810A1 (en) * | 1999-06-30 | 2001-01-03 | Optical Technologies U.S.A. Corp. | Multiple-wavelength telecommunication system with automatic gain control |
| CN101465697A (en) * | 2009-01-04 | 2009-06-24 | 耿直 | Optical fiber direct amplification and frequency conversion repeater and working method |
| CN101483484A (en) * | 2009-02-06 | 2009-07-15 | 耿直 | Optical fiber straight-forward station adapter and working method |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1065810A1 (en) * | 1999-06-30 | 2001-01-03 | Optical Technologies U.S.A. Corp. | Multiple-wavelength telecommunication system with automatic gain control |
| CN101465697A (en) * | 2009-01-04 | 2009-06-24 | 耿直 | Optical fiber direct amplification and frequency conversion repeater and working method |
| CN101483484A (en) * | 2009-02-06 | 2009-07-15 | 耿直 | Optical fiber straight-forward station adapter and working method |
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