Summary of the invention
In view of the foregoing, the object of the present invention is to provide a kind of interlinkage optical fiber repeater signal transmission method and interlinkage optical fiber repeater, make optical fiber repeater to 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 between the minimizing system from requirements such as degree, when the link of a plurality of optical fiber repeaters is arranged, can realize the long haul optical transmission relaying between the optical fiber repeater, and have and to be applicable to the characteristics of the various wireless communication system being carried out relay transmission.
For achieving the above object, the present invention introduces a kind of interlinkage optical fiber repeater signal transmission method and interlinkage optical fiber repeater that is made 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 etc., it is characterized in that adopting following signal transmission and microprocessor Control work method:
(1) wireless signal frequency conversion that each wireless receiver is received and the Filtering Processing reception carrier frequency frequency variation signal that becomes different frequency is exported, and is controlled the amplitude-frequency and the time-delay characteristics parameter of the reception carrier frequency frequency variation signal of adjusting each output respectively 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 Processing become different frequency respectively again;
(3) above-mentioned each being received carrier frequency frequency variation signal and subcarrier transmission control reconciles and is converted to light signal output by light transmission transmitter after system device modulated output signal closes the road;
(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 the back output light signal with light transmission transmitter of optical signal amplifier amplification 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, address code are reconciled by subcarrier transmission control and sent to external optical fiber by optical transmission system after the system device is modulated; 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 system device demodulation output;
(6) microprocessor each emission input signal characteristics parameter code that will obtain and the corresponding system of setting launch input signal work and compare with reference to the characterisitic parameter sign indicating number and judge, adjust accordingly according to the 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 imported 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.
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 is provided with 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, receiving mixer through each output signal after adjust handling by wireless signal closes and is transferred to light transmission transmitter respectively by optical branching device behind the road and changes 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 is provided with 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, the light signal that one route image intensifer amplifies back and light transmission transmitter output 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 received signal characteristic parameter that microprocessor will be input in each transmitting set that is operated in different frequency range and standard detects, as amplitude, Frequency Response, time-delay etc., and these parameters are encoded obtain received signal parameter code and corresponding systematic code, address code, reconcile system device and optical transmission system with this received signal parameter code and corresponding systematic code by subcarrier transmission control, address code is transferred to other interlinkage optical fiber repeater, also reconcile system device and optical transmission system and receive received signal parameter code and the corresponding systematic code that other interlinkage optical fiber repeater sends by subcarrier transmission control, address code, received 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 sign indicating number, judge and processing, according to the purpose of processing instruction, to satisfy the desired amplitude of transmission 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, spectral characteristic, conditions such as time-delay; Under the detection and control of microprocessor, be input to the optical carrier of the optical carrier selection of light transmission transmitter by input of outside line optical fiber or the output of local optical carrier generator, when local optical carrier generator is exported 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 closing the road transmission; Operation principle by above-mentioned introduction as can be seen, 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 the road of closing transmission 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.
Embodiment
Below be example explanation embodiments of the invention with the accompanying drawing:
Fig. 1 is the interlinkage optical fiber repeater signal transmission method and the interlinkage optical fiber 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, 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 the system device, a transmission direction optical branching device, two outside line optical branching devices, two light signals amplify the transmission branch device, two optical signal amplifiers, among Fig. 1: 1-1~1-n is a 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 a 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 formations such as attenuator able to programme, programmable equalizer and programmable delayer, be implemented in microprocessor control and down the parameters such as intensity, amplitude-frequency equilibrium and time-delay feature of output signal carried 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 constitute; 6 is the wireless receiving signal combiner, adopts conventional mixer; 7 for subcarrier transmission control conciliation system device, adopts conventional modulator-demodulator; 8 is wireless transmission input 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 constitute; 11 is light transmission receiver, adopts the optical demodulator module to constitute; 12 is wireless transmission input 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 for light signal amplifies the 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 received signal output 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 the system device 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 transmission signals 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 the system device is connected, the terminal of closing of light transmitting-receiving branch mixer is connected with the terminal of closing of optical transmission direction splitter, the branch end of optical transmission direction splitter is connected with a branch end of different outside line optical branching device respectively, a branch end of each outside line optical branching device is connected with the terminal of closing that different light signal amplifies the transmission branch device respectively, the branch end that light signal amplifies the transmission branch device is connected with an optical transmission amplifier input terminal, the output of this optical transmission amplifier is connected with the branch end that another light signal amplifies the 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 with 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 the system device is connected with the control input/output terminal of microprocessor respectively.
Fig. 2 is the main program figure of the microprocessor of the interlinkage optical fiber repeater signal transmission method of one embodiment of the invention and interlinkage optical fiber repeater; Wherein groundwork flow process is:
(1) microprocessor system startup, initialization; Systematic code, the address code of each wireless receiver correspondence are set; The pairing 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 sign indicating number; Local optical carrier generator pro-jobs level sign indicating number is set;
(2), determine local optical carrier generator whether to work or adopts optical carrier that outside line optical fiber imports light CF signal source as light transmission transmitter in this machine according to whether receiving optical carrier and local optical carrier generator pro-jobs level sign indicating number; If this machine optical carrier generator pro-jobs level sign indicating number is high-grade sign indicating number, 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 light CF signal source of the optical carrier of outside line optical fiber input as light transmission transmitter in this machine; If this machine optical carrier generator pro-jobs level sign indicating number is the inferior grade sign indicating number, and do not receive the optical carrier of outside line optical fiber input, then start the light CF signal source of local optical carrier generator as light transmission transmitter in this machine, and with the fine output of the outside linear light of local optical carrier generator optical carrier output, non-modulated;
The detection signal coding of characteristic parameters such as the amplitude-frequency of each transmitting set input signal that (3) will be by characteristics of signals parametric detector output and time-delay, obtain each emission input signal characteristics parameter code and corresponding systematic code, address code, send this emission input signal characteristics parameter code and corresponding systematic code, address code to other optical fiber repeaters by subcarrier transmission control conciliation system device modulation and optical transmission system; Receive the emission input signal condition code and corresponding systematic code, the address code that obtain to reconcile by optical transmission system transmission input and subcarrier transmission control system device demodulation output by other optical fiber repeaters;
The emission input signal characteristics parameter code that (4) will obtain compares judgement with the emission input signal work of the corresponding systematic code of setting, address code with reference to the characterisitic parameter sign indicating number, meets then to enter above-mentioned (3), does not meet then to generate processing instruction and enter following (5);
(5) according to processing instruction the programmable signal amplitude-frequency and the time-delay characteristics parameter adjuster of correspondence are adjusted, realized the pairing wireless receiver output signal of Adjustment System sign indicating number characteristic parameter; Get back to above-mentioned (2) then.
The interlinkage optical fiber repeater signal transmission method of one embodiment of the invention and the groundwork method of interlinkage optical fiber 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 Processing become different frequency, and adjusts the amplitude-frequency and the delay parameter of the reception carrier frequency frequency variation signal of each output by microprocessor by controlling programmable signal amplitude-frequency and timer respectively;
(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 wireless transmission input signal power splitter, and the CF signal that becomes different frequency by each transmitting set frequency conversion and Filtering Processing is launched again;
(3) above-mentioned each being received carrier frequency frequency variation signal and subcarrier transmission control reconciles and is converted to light signal output by light transmission transmitter after system device modulated output signal closes the road;
(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 receives processing 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 the back optical signals outside line optical branching device with light transmission transmitter of optical transmission amplifier amplification.
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 above-mentioned workflow establishment Single Chip Microcomputer (SCM) program and method of work that the present invention introduced.
The present invention has an optical carrier source controller in the interlinkage optical fiber 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 splitter, an optical signal amplifier, two outside line fiber optic tap 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 is 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 outside line fiber optic tap device, 31 is local optical carrier output splitter, and 32 is local optical carrier generator; Branch's input of outside line optical carrier input mixer is connected with a branch end of different outside line fiber optic tap 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 splitter 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 splitter, other branch's outputs of local optical carrier output splitter are connected with a branch end of different outside line fiber optic tap device respectively, the terminal of closing of different outside line fiber optic tap devices is connected with different outside line optical fiber, a branch end of the outside line fiber optic tap device that a branch end of outside line fiber optic tap device is different with another is connected, and the operating state of optical signal amplifier and local optical carrier generator and control input/output terminal are connected with the work 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 of the operating state control of optical carrier source control microprocessor optical signal amplifier and local optical carrier generator, realize the optical carrier of the optical carrier selection of light transmission transmitter by 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, make the present invention have favorable applicability.
Can also to be interlinkage optical fiber repeater signal transmission method and interlinkage optical fiber repeater receive carrier frequency frequency variation signal, optical transmission with each receives the signal of telecommunication of output and subcarrier transmission control and reconcile system device modulated output signal and close and be converted to light signal behind the road and send to optical fiber in the present invention, can be convenient to enforcement of the present invention so that the light signal phase mutual interference in transmission line decreases like this.
The present invention has a wireless receiving flashlight transmission power splitter in the interlinkage optical fiber repeater, an optical transmission received signal mixer, two optical transmission received signal power splitters, two optical transmission send mixer, as shown in Figure 4, wherein: 33 are wireless receiving flashlight transmission power splitter, 34 is optical transmission received signal mixer, 35,42 is light transmission receiver, 36,41 is optical transmission received signal power splitter, 37,40 are optical transmission transmission mixer, 38,39 is light transmission transmitter, identical among 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 with branch's input that different optical transmission sends signal combiner respectively, another branch's input that optical transmission sends signal combiner is connected with branch's output of an optical transmission received signal power splitter, the terminal of closing that optical transmission sends signal combiner is connected with the electric signal input end of light transmission transmitter, branch's input of optical transmission received signal mixer is connected with branch's output of different optical transmission received signal power splitter respectively, the terminal of closing of optical transmission received signal mixer is connected with branch's input of wireless transmission signal mixer, the electrical signal of light transmission receiver is connected with the input of optical transmission received signal power splitter, the light signal input of light transmission receiver and the light signal output end of light transmission transmitter are connected with the different branch end of outside line optical branching device respectively, can be convenient to enforcement of the present invention so that the light signal phase mutual interference in transmission line decreases like this.
The present invention can also be the band pass filter that each branch end of wireless receiving signal combiner in the interlinkage optical fiber 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 application widely.
The present invention has a plurality of transmission direction optical branching devices, a plurality of outside line optical branching device, a plurality of light signal amplification transmission branch device in the interlinkage optical fiber repeater, can the present invention can be had widely use so that the present invention has the ability of multi-direction external outside line optical fiber like this.
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, interlinkage optical fiber repeater signal transmission method and interlinkage optical fiber repeater that light transmission transmitter and light transmission receiver etc. constitute, make optical fiber repeater to 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 between the minimizing system from requirements such as degree, when the link of a plurality of optical fiber repeaters is arranged, can realize the long haul optical transmission relaying between the optical fiber repeater, and have and to be applicable to the characteristics of the various wireless communication system being carried out relay transmission.