CN107342826A - A kind of method that medium wave navigation terminal and its intelligence cut frequency and self-adapting tuning - Google Patents
A kind of method that medium wave navigation terminal and its intelligence cut frequency and self-adapting tuning Download PDFInfo
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- CN107342826A CN107342826A CN201710743261.6A CN201710743261A CN107342826A CN 107342826 A CN107342826 A CN 107342826A CN 201710743261 A CN201710743261 A CN 201710743261A CN 107342826 A CN107342826 A CN 107342826A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/02—Transmitters
- H04B1/04—Circuits
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/10—Monitoring; Testing of transmitters
- H04B17/11—Monitoring; Testing of transmitters for calibration
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/10—Monitoring; Testing of transmitters
- H04B17/11—Monitoring; Testing of transmitters for calibration
- H04B17/12—Monitoring; Testing of transmitters for calibration of transmit antennas, e.g. of the amplitude or phase
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/10—Monitoring; Testing of transmitters
- H04B17/11—Monitoring; Testing of transmitters for calibration
- H04B17/13—Monitoring; Testing of transmitters for calibration of power amplifiers, e.g. gain or non-linearity
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Abstract
A kind of method that medium wave navigation terminal and its intelligence cut frequency and self-adapting tuning, control excitation control panel, wave band control panel and day in emitter to adjust the day in case to adjust monitor board by industrial computer, realize that the intelligence of medium wave navigation system cuts frequency and self-adapting tuning.The key of layman one can open radio frequency and normal transmission, larger it can reduce because the working frequency points of approval and current frequency are inconsistent, or the antenna length difference of installation and the weather of antenna end cause standing-wave ratio change etc., cause medium wave navigation terminal can not match somebody with somebody humorous and normal transmission with antenna, professional and technical personnel is needed to garrison a large amount of debugging at the scene repeatedly or for a long time, influence the phenomenons of duty cycle indirectly, the technology specialty for greatly reducing operating cost and operating personnel requires.
Description
Technical field
The invention belongs to wireless communication field, more particularly to a kind of medium wave navigation terminal and its intelligence cut frequency and adaptive tune
Humorous method.
Background technology
At present, no matter domestic or external medium wave guidance station can only be led using single frequency in a period of time
Boat, it can not be realized as short wavelength emissions system is switched fast frequency.And because current medium wave guidance station is being built and adjusted
During examination, its working frequency points is among application, therefore, can not carry out it in the construction of medium wave guidance station and debugging process
The setting of working frequency points.In addition, for same medium wave guidance station, particularly it is located in the ground that in marine environment or height above sea level is higher
Medium wave guidance station in the particular surroundings such as area, the matching network of its transmitting antenna depend critically upon weather conditions.
So for each medium wave guidance station, its working frequency points decide and antenna installation after, be required for
Guidance station technical staff voluntarily adjusts antenna matching network so that medium wave guidance station can be normally with humorous, transmitting, and cold every year
Hot alternate spring, Qiu Liangji, the antenna matching network of medium wave guidance station need to readjust, and for being located in marine environment or
The medium wave guidance station of the particular surroundings such as the higher area of person's height above sea level, the matching status of its antenna matching network is even within one day
There is significant change, now, then needed to be tuned readjusting for matching network within one day.
And because the adjustment point for being related to resonance matching when changing navigation frequency or antenna parameter conversion is relatively more, it is not only right
Emitter region of interest is adjusted, and the allotting network of supporting transmitter antenna related to emitter is with the change of frequency
Specific aim adjustment is made, therefore, the adjustment of medium wave guidance station needs to put into many man power and materials.Generally, change
Changing the frequency layman of a medium wave guidance station can not directly operate, and also compare even professional performs to change to operate frequently
It is cumbersome, at least need more than ten or even tens hours.
Therefore, constantly update and regenerate with emitter, under frequency handover or different length antenna or current antenna is sent
During parameter change, how to realize layman can fast operating medium wave navigation system turn into medium wave navigation system be badly in need of solution
Certainly the problem of.
The content of the invention
The technical problems to be solved by the invention are：A kind of medium wave navigation terminal is provided and its intelligence cuts frequency and adaptive tune
Humorous method, realize that the intelligence of medium wave navigation system cuts frequency and self-adapting tuning.
In order to solve the above-mentioned technical problem, the technical solution adopted by the present invention is：
Case, transmitting antenna are adjusted in a kind of medium wave navigation terminal, including the emitter, the day that are sequentially connected, it is characterised in that also wrap
Include：
Monitoring unit, monitoring unit include industrial computer；
The emitter includes excitation control panel, power amplifier and the wave filter being sequentially connected, and wave filter includes wave band
Control panel；
Adjust case to include day and adjust monitor board and the impedance transformer being sequentially connected, rf sampling plate, fine setting loop in the day
With coarse adjustment loop, the day adjusts monitor board to connect respectively with impedance inverter circuit, rf sampling plate, fine setting loop and coarse adjustment loop
Connect；
It is two-way that the industrial computer adjusts monitor board to establish with excitation control panel, the wave band control panel and the day respectively
Communication connection.
The present invention also provides a kind of method that medium wave navigation terminal intelligently cuts frequency and self-adapting tuning, it is characterised in that bag
Include step：
S1, working frequency setting is judged whether to, if so, into step S2；If it is not, into step S6；
S2, the human-computer interaction interface selection working frequency provided in industrial computer simultaneously confirm to set, and the working frequency is passed through
DDS circuit is sent to by single-chip microcomputer, the square-wave signal of working frequency as corresponding to producing DDS circuit, while send wave band switching
Instruct to the MCU of wave band control panel, it is switched to corresponding ripple according to working frequency arranges value and the corresponding relation of wave band
Section；
S3, judge whether with humorous table be empty, if it is empty, into step S4；If it is not, into step S5；
S4, calling match somebody with somebody humorous flow, into step S3；
S5, calling match somebody with somebody humorous table data, and the coarse adjustment gear value of reading and impedance gear value are sent to the MCU for adjusting monitor board in day
It is configured, the pumping signal level value of reading is sent to the MCU of excitation control panel, it is performed Sine Pulse Width Modulation
Dutycycle change；
S6, transmission open high voltage power supply and instructed to control panel is encouraged, and turn on high voltage power supply；
S7, call fine setting circuit controls, send fine setting tuning instruction to day regulation and control making sheet MCU, day regulate and control making sheet according to
Series resonance principal control stepper motor drives ball variometer to look for antenna current maximum point, and the antenna electric is flowed back to
It is transmitted to industrial computer；
S8, industrial computer judge the antenna current whether in the range of predetermined current, if so, then enter step S10, if
It is no, then into S9；
S9, each parameter decision and handling process are called, into S8；
S10, start modulation.
The beneficial effects of the present invention are：By industrial computer control emitter in excitation control panel, wave band control panel and
It adjusts the day in case to adjust monitor board, realizes that the intelligence of medium wave navigation system cuts frequency and self-adapting tuning.The key of layman one is
Radio frequency and normal transmission can be opened, larger can be reduced because the working frequency points of approval and current frequency are inconsistent, or the length of antenna of installation
Degree is different and the weather of antenna end causes standing-wave ratio change etc., causes medium wave navigation terminal can not be with antenna with humorous and normal
Transmitting is, it is necessary to which professional and technical personnel repeatedly or for a long time garrisons a large amount of debugging at the scene, influences the phenomenons of duty cycle indirectly, greatly
The technology specialty for reducing operating cost and operating personnel requirement.
Brief description of the drawings
Fig. 1 is the entire block diagram of medium wave navigation terminal；
Fig. 2 is the flow chart that medium wave navigation terminal intelligently cuts frequency and self-adapting tuning；
Fig. 3 is to match somebody with somebody humorous flow chart with humorous table；
Fig. 4 is the flow chart of the judgement of each parameter and handling process；
Fig. 5 is the control link schematic diagram of medium wave navigation terminal；
Fig. 6 is the radio frequency link schematic diagram of medium wave navigation terminal；
Fig. 7 is the principle schematic of excitation control panel；
Fig. 8 is the principle schematic of wave filter；
Fig. 9 is the principle schematic of impedance transformer；
Figure 10 is the principle schematic that case is adjusted in day；
Figure 11 is the principle schematic of antenna loop.
Embodiment
To describe the technology contents of the present invention, the objects and the effects in detail, below in conjunction with embodiment and coordinate attached
Figure is explained.
The design of most critical of the present invention is:Excitation control panel, the wave band control panel in emitter are controlled by industrial computer
Adjust the day in case to adjust monitor board with day, realize that the intelligence of medium wave navigation system cuts frequency and self-adapting tuning.
Fig. 1, a kind of medium wave navigation terminal are refer to, including case, transmitting antenna are adjusted in the emitter, the day that are sequentially connected, also wrap
Include：
Monitoring unit, monitoring unit include industrial computer；
The emitter includes excitation control panel, power amplifier and the wave filter being sequentially connected, and wave filter includes wave band
Control panel；
Adjust case to include day and adjust monitor board and the impedance transformer being sequentially connected, rf sampling plate, fine setting loop in the day
With coarse adjustment loop, the day adjusts monitor board to connect respectively with impedance inverter circuit, rf sampling plate, fine setting loop and coarse adjustment loop
Connect；
It is two-way that the industrial computer adjusts monitor board to establish with excitation control panel, the wave band control panel and the day respectively
Communication connection.
It was found from foregoing description, the beneficial effects of the present invention are：The excitation in emitter is controlled to control by industrial computer
Plate, wave band control panel and day adjust the day in case to adjust monitor board, realize that the intelligence of medium wave navigation system cuts frequency and self-adapting tuning.
Further, the fine setting loop is a variometer, and the coarse adjustment loop is by the loading coil that is connected in parallel
Formed with compensating electric capacity.
Further, the variometer is ball variometer.
Seen from the above description, finely tune loop and coarse adjustment loop constitutes antenna loop, antenna is tuned, so that day
Maximum current and power are obtained on line.Wherein, adjustable ball variometer is facilitated as loop is finely tuned using inductance value, slightly
Loading coil and compensating electric capacity composition that route is connected in parallel are recalled to, in antenna loop, in addition to sealing in variable inductance, is also gone here and there
Enter the loading coil and electric capacity of fixed taps, of antenna and power amplifier unit can be realized by adjusting two inductance or selection electric capacity
Match somebody with somebody
Further, the power amplifier is switch power amplifier, and use output voltage is fixed, electric current is with load
The pattern of change.
Further, the impedance transformer uses transformer isolation impedance matching pattern.
Further, the wave band control panel includes standing-wave ratio detection circuit and power amplification efficiency detection circuit.
Seen from the above description, power amplifier uses close power amplifier pipe, and use output voltage is fixed, electric current is with load
The pattern of change, while impedance transformer uses transformer isolation impedance matching pattern, and wave band control panel includes standing-wave ratio
Detect circuit and power amplification efficiency detection circuit, then when rear end antenna loop with it is humorous after, different impedance gears consumption it is whole
Machine power consumption is different, by predetermined power demand values/power supply power consumption change come efficiency can guide required impedance matching,
While the rule that standing-wave ratio circuit is embodied is：The standing-wave ratio embodied closer to the impedance transformer gear of impedance matching
To be minimum value, in summary two kinds of means, can be achieved the impedance matching of emitter and antenna.
It refer to Fig. 2, a kind of method that medium wave navigation terminal intelligently cuts frequency and self-adapting tuning, including step：
S1, working frequency setting is judged whether to, if so, into step S2；If it is not, into step S6；
S2, the human-computer interaction interface selection working frequency provided in industrial computer simultaneously confirm to set, and the working frequency is passed through
DDS circuit is sent to by single-chip microcomputer, the square-wave signal of working frequency as corresponding to producing DDS circuit, while send wave band switching
Instruct to the MCU of wave band control panel, it is switched to corresponding ripple according to working frequency arranges value and the corresponding relation of wave band
Section；
S3, judge whether with humorous table be empty, if it is empty, into step S4；If it is not, into step S5；
S4, calling match somebody with somebody humorous flow, into step S3；
S5, calling match somebody with somebody humorous table data, and the coarse adjustment gear value of reading and impedance gear value are sent to the MCU for adjusting monitor board in day
It is configured, the pumping signal level value of reading is sent to the MCU of excitation control panel, it is performed Sine Pulse Width Modulation
Dutycycle change；
Wherein, pumping signal level be transmitting terminal output signal power and receiving terminal input signal power ratio (tool
Body is shown in the patent application of application number 201610948473.3).
S6, transmission open high voltage power supply and instructed to control panel is encouraged, and turn on high voltage power supply；
S7, call fine setting circuit controls, send fine setting tuning instruction to day regulation and control making sheet MCU, day regulate and control making sheet according to
Series resonance principal control stepper motor drives ball variometer to look for antenna current maximum point, and the antenna electric is flowed back to
It is transmitted to industrial computer；
S8, industrial computer judge the antenna current whether in the range of predetermined current, if so, then enter step S10, if
It is no, then into S9；
S9, each parameter decision and handling process are called, into S8；
S10, start modulation.
Seen from the above description, under the control of industrial computer, excitation control panel, wave band control panel and day adjust monitor board mutual
Coordinate, realize that medium wave navigation terminal realizes full frequency band with humorous automatically, and humorous data storage will be matched somebody with somebody, realize the key of layman
Cut frequency and open radio active, medium wave navigation terminal will automatically call with humorous table related data and start automatic tuning capabilities, realize
The current frequency and environment of emitter and antenna it is seamless with humorous.
Further, it is described to be specifically included with humorous flow referring to Fig. 3：
S401, working frequency f=700kHz is set；
S402, coarse adjustment is set to be 0 grade, impedance is 5 grades, and pumping signal level is 60%；
Wherein, coarse adjustment shelves are since 0 grade, corresponding 470pf, 1 grade of corresponding 0uf, 2 grades of corresponding 250uf, 39 grades of correspondences
2200uf.Capacitance corresponding to specific gear number and each gear can need to set according to actual conditions.
S403, using only fundamental current maximum principle and requiring that the angle of ball variometer meets during series resonance
" 20~160 " degree principles differentiate coarse adjustment gear corresponding to the working frequency, preferably former using standing-wave ratio minimum and power amplification efficiency
Impedance gear corresponding to the working frequency is then differentiated, obtains working frequency and its corresponding coarse adjustment gear, impedance gear；
S404, radio frequency is opened, perform step S7 and be tuned；
After S405, tuning, each parameter decision and handling process are performed；
Whether S406, judgement completely fill out with humorous table, if so, then entering S408；If it is not, then enter S407；
S407, basis gradually reduce working frequency, lowest operating frequency 190kHz, into S402 with humorous table rule；
S408, end.
Further, it is described to be specifically included with humorous table rule：
A.190kHz in~250kHz, f ± 3kHz；
B.251kHz in~350kHz, f ± 5kHz；
C.351kHz in~700kHz, f ± 10kHz.
Seen from the above description, what the interior setting of different frequency range was different matches somebody with somebody humorous table rule, improves and matches somebody with somebody humorous efficiency with humorous table.
Further, referring to Fig. 4, each parameter judges and handling process specifically includes：
S801, check antenna electric flow valuve I, fine setting show value and source current value；
S802：Antenna current is performed to judge：
If a. I>=Imax, " pumping signal level " successively decreases 5% successively, until I is in INormal range (NR)Untill, perform S803；
If b. I<Imax, then S803 is performed；
S803：Fine setting is performed to judge：
A. show value is finely tuned to spend at (20-160), including 20 degree and 160 degree, carry out S804；
B. show value is finely tuned in (0-20) degree, and coarse adjustment reduces one grade, and S801 is performed after retuning；
C. it is that coarse adjustment increases by 1 grade, and S801 is performed after retuning in (160-180) degree to finely tune show value；
S804：Impedance is performed to judge：
A., different impedances are set, check standing wave when power amplification efficiency ratio, the optimal gear of numerical value is selected, performs S805；
B. source current, more than 7A, reduces " pumping signal level " value no more than 7A；
S805：Pumping signal level is set：
A. pumping signal level value is adjusted, current antenna current value is fallen into INormal range (NR)；
B. source current is no more than 5A；
C. " tranmitting frequency, modulating frequency, impedance, coarse adjustment, pumping signal level " is stored to humorous table.
Seen from the above description, judged by each parameter and handling process ensures that antenna current is operated in normal scope
It is interior.
Embodiment one
Medium wave navigation terminal includes monitoring unit, emitter, day and adjusts case and transmitting antenna.Monitoring unit includes power chain
Road, industrial computer and its peripheral circuit, emitter include power unit, excitation control panel, power amplifier and wave filter, day and adjust case
Monitor board, impedance transformer, rf sampling plate, fine setting loop and coarse adjustment loop are adjusted including day, transmitting antenna is by H type antenna sets
Into.
Monitoring unit is control axis and the reception signal monitoring center of medium wave navigation terminal, is mainly used in man-machine interaction,
Control emitter adjusts case to be acted according to control flow with day.
Emitter is that the transmission signal of medium wave navigation terminal produces and amplified maincenter, and there is power to be controlled 0W- by instruction
100W adjustable functions.The monitored unit control of emitter, the parameter that transmission signal can be set (such as tranmitting frequency, working method, swash
Encourage signal level, modulation, modulating frequency etc.), switch extension set and state and parameter that work is reported to monitoring unit.
It adjusts case to have and controlled by instruction, Auto-matching matches somebody with somebody humorous function as this terminal and the coupling matching part of antenna.
It adjusts case to complete the impedance matching effect required by power amplifier unit, completes the effect of transimission power again, while also to filter out
Harmonic wave, the harmonic energy that complete machine exports is set to meet index request.
Transmitting antenna mainly goes out the emission of radio frequency signals that day tune case transmits, and rides upon near runway.
Monitoring unit, emitter, day adjust the annexation of case and transmitting antenna to be decomposed into two kinds of links.
(1) link is controlled
Complete machine control link includes upper and lower computer telecommunication circuit, action executing circuit and signal monitoring circuit.
As shown in figure 5, industrial computer is host computer, it is slave computer that monitor board is adjusted in excitation control panel, wave band control panel and day, work
Control machine adjusts monitor board to establish two-way with excitation control panel, the wave band control panel and the day respectively by CAN
News connection.
Encourage control panel receive industrial computer send command information, for perform " tranmitting frequency ", " modulation intelligence ", " swash
Encourage signal level " etc. function, while transmitter section parameter is monitored and reported, the parameter of monitoring has：Power amplifier temperature, work
Working frequency, supply voltage, source current.
Wave band control panel receives the command information that industrial computer is sent, for performing " frequency range switching " function.
It adjusts monitor board mainly to complete control and monitoring to matching coupled link circuit, and monitoring parameters have antenna current and amplitude modulation
There are coarse adjustment gear, impedance gear and automatic tuning in degree, control section.
(2) radio frequency link
The radio frequency link of medium wave navigation terminal is as shown in fig. 6, including excitation control panel, power amplifier, wave filter, impedance
Converter, alihnment coil, loading coil/compensating electric capacity and transmitting antenna.
Encourage control panel to produce pumping signal corresponding with the parameter set, high-power letter is enlarged into by power amplifier
Number, it is sent into day after the respective filter wave band filtering by the switching of wave band control panel and adjusts case.Adjusted in day in case, signal passes through impedance
Matching and the tuning of antenna loop, realize that output signal is under best match state and to external radiation with antenna load.Equipment
In high band operation, coarse adjustment gear can switch to compensating electric capacity by loading coil.
Pass through the explanation of above-mentioned radio frequency link, it is known that, intelligently cut frequency and be related to encouraging control panel, wave filter and day to adjust case portion
Point, the antenna of different length adjusts box part with humorous and antenna environment factor with the humorous day that is related to.Intelligence cuts frequency and self-adapting tuning
It is required that each several part has the design automatically controlled on hardware, the principle of each several part is as follows.
Fig. 7 show the principle schematic of excitation control panel.The carrier signal of corresponding working frequency is produced by excitation control panel
It is raw, encourage the single-chip microcomputer of control panel to receive Content of Communication from CAN communication link and parse frequency data, send DDS electricity to
Road, carrier signal and the carrier power amplifier circuit of rear class is sent to through drive circuit as corresponding to producing DDS circuit, it can be seen that work
The conversion output of frequency can automatically control.
It is effective to full frequency band and power amplification of the carrier power amplifier to carrier signal is not only restricted to the scope of frequency, therefore
Frequency part is cut not state.
Carrier power signal after carrier power amplifier is amplified, demand can be changed into after needing the filter filtering of warp let-off rear class
Radiation form：Sine wave.Because operating frequency range is 190k-700k, 2 frequencys multiplication, 3 frequencys multiplication of low frequency frequency point ranges fall
In operating frequency range, therefore need to carry out frequency range switching.
Fig. 8 show the principle schematic of wave filter.Cover working frequency range scope four sections are housed in harmonic filter
Frequency range, the instruction that four sections of frequency ranges are received industrial computer by wave band control panel control the switching selection of vacuum high-pressure relay, and this also may be used
Automatically control.Standing-wave ratio detection circuit and power amplification efficiency detection circuit on wave band control panel simultaneously be present, pass through the two samplings
Circuit can be to rear class impedance gear matching instruct, because this carrier power amplifier is using close power amplifier pipe, and be adopted as
Output voltage fix but electric current with load change form, while according to Fig. 9, the impedance transformer of this equipment using
Transformer isolation impedance matching pattern, then when rear end antenna loop with it is humorous after, different impedance gears consumption complete machine work(
Consumption is different, by predetermined power demand values/power supply power consumption change come efficiency can be guided in certain degree it is required
Impedance matching, while the rule that standing-wave ratio circuit is embodied is, the impedance transformer gear closer to impedance matching is embodied
Standing-wave ratio out will be minimum value, comprehensive two kinds of means, then can guide the impedance matching for how realizing emitter and antenna.
Figure 10 show the principle schematic that case is adjusted in day, radiofrequency signal (the i.e. sine of wave filter output of emitter output
Power signal) via matching of the day tune case realization with antenna, resonance.It adjusts case to include impedance transformer, rf sampling plate, day
Adjust monitor board, fine setting loop, coarse adjustment loop (loading coil, compensating electric capacity), wherein impedance matching box circuit as shown in figure 9, its
Impedance gear can be switched by vacuum high-pressure relay to be selected, and fine setting loop is that a ball variometer (is specifically shown in application number
201310154596.6 patent application), it is controlled by two-phase stepper motor, and the inductance or electric capacity in coarse adjustment loop are also by vacuum height
Potential relay switching selection, and the relay group of the above and two-phase stepper motor by day adjust monitor board receive industrial computer instruct into
Action work switches, while wherein coarse adjustment loop and fine setting loop constitutes antenna loop.
The effect of antenna loop is that antenna is tuned, so as to obtain maximum current and power on antenna.Antenna loop
After the tuned matching of power amplifier unit radio frequency power output, antenna is sent to greatest extent and is gone.Meanwhile during antenna loop resonance,
Fundamental current is maximum, and maximum to the series impedance of harmonic wave, to prevent harmonic current from flowing into antenna, plays and further filters out harmonic wave
Effect.Automatic tuning apparatus can make antenna automatic tuning and keep humorous when changes in environmental conditions causes antenna reactance to change
Shake state.
Figure 11 is the principle schematic of antenna loop, and for different working frequencies, the impedance variations of antenna itself are larger,
Therefore in antenna loop, in addition to sealing in variable inductance T1, fixed taps inductance T2 and electric capacity C1 have also been sealed in, they are common
Antenna in series resonance circuit is constituted, adjusting T1, T2 or selection C1 makes antenna be matched with power amplifier unit.
It was found from foregoing description, hardware view uses auto-control Design, and the intelligence for realizing medium wave navigation terminal is cut
Frequency and self-adapting tuning.
Embodiment two
It can be seen from the explanation of link is controlled in embodiment one, the intelligence of ripple navigation terminal is cut frequently and adaptive in commission
During tuning, industrial computer, excitation control panel, wave band control panel and day regulation and control making sheet are related generally to.
In equipment mooring first, sky is essentially with humorous table.Now equipment can be according to the operation matched somebody with somebody in humorous flow, with humorous stream
Journey matches somebody with somebody humorous function first as shown in figure 9, industrial control software will start, using only fundamental current maximum principle and requirement during series resonance
The angle of spherical inductor meets " 20-160 " degree principle to differentiate coarse adjustment gear corresponding to working frequency, minimum using standing-wave ratio
And the best principle of power amplification efficiency differentiates impedance gear corresponding to working frequency, frequency, coarse adjustment are respectively voluntarily set, impedance, swashed
The parameter such as encourage, from highest frequency 700k when antenna be revealed as under the principle of induction reactance, select compensating electric capacity to be judged successively,
After 700k matches somebody with somebody humorous success, working frequency and increase coarse adjustment gear (increase loading value) are gradually reduced come to most according to humorous table principle
Low frequency 190k is with humorous, after humorous, pumping signal level value corresponding to setting, and it is one by one that working frequency and its institute is right
Coarse adjustment, impedance, pumping signal level value, the trim values storage answered.
In the case where matching somebody with somebody humorous table, operating personnel select working frequency simultaneously in the human-computer interaction interface that industrial computer provides
Confirm to set, single-chip microcomputer receives and parses through out the operating frequency value of this Content of Communication from CAN communication link, so as to by working frequency
Value is sent to DDS circuit, the square-wave signal of working frequency as corresponding to producing DDS circuit, while the MCU of wave band control panel is received
To wave band switching command, according to set of frequency value and wave band corresponding relation, corresponding wave band is switched to, while monitor board is adjusted in day
MCU receive industrial computer reading with humorous table storage coarse adjustment gear value set and impedance gear value set, respectively to vacuum after
Electrical equipment group switches over, and encourages the MCU of control panel to receive the pumping signal level value with the storage of humorous table that industrial computer is read and performs
SPWM dutycycle change.Above-mentioned is working frequency setting procedure.
After working frequency setting procedure is completed, operating personnel can select capable of being opened by one key radio frequency, and excitation control panel receives
The unlatching high voltage power supply that industrial computer transmits instructs and performs action, and after high voltage power supply unlatching, the MCU of day regulation and control making sheet receives work
" fine setting tuning " instruction that control machine transmits, control stepper motor is first rested near stored trim values, to avoid due to day
Gas environmental change or antenna length change (such as H types deck antenna), cause humorous point to change, i.e., trim values change
Becoming, day regulates and controls making sheet and controls stepper motor to drive spherical inductor according to the principle (fundamental current maximum principle) of series resonance,
Look for now antenna current maximum point and stop, day regulation and control making sheet returns the antenna electric flow valuve and judges day in industrial control board, industrial control board
Whether line current meets the requirements, and meets and then starts modulation, does not meet then calling " each parameter decision and handling process ", " each parameter
Judgement and handling process " is as shown in Figure 4.
In summary, because medium wave navigation terminal realizes full frequency band with humorous automatically, and will match somebody with somebody humorous data storage, you can realization
The key of layman cuts frequency and opens radio active, and medium wave navigation terminal will automatically be called with humorous table related data and started certainly
Dynamic tuber function, realize emitter and antenna current frequency and environment it is seamless with humorous.
Embodiments of the invention are the foregoing is only, are not intended to limit the scope of the invention, it is every to utilize this hair
The equivalents that bright specification and accompanying drawing content are made, or the technical field of correlation is directly or indirectly used in, similarly include
In the scope of patent protection of the present invention.
Claims (10)
1. case, transmitting antenna are adjusted in a kind of medium wave navigation terminal, including the emitter, the day that are sequentially connected, it is characterised in that also wrap
Include：
Monitoring unit, monitoring unit include industrial computer；
The emitter includes excitation control panel, power amplifier and the wave filter being sequentially connected, and wave filter controls comprising wave band
Plate；
The day adjust case to include day and adjust monitor board and the impedance transformer being sequentially connected, rf sampling plate, fine setting loop and thick
Road is recalled to, the day adjusts monitor board to be connected respectively with impedance inverter circuit, rf sampling plate, fine setting loop and coarse adjustment loop；
The industrial computer adjusts monitor board to establish both-way communication with excitation control panel, the wave band control panel and the day respectively
Connection.
2. medium wave navigation terminal according to claim 1, it is characterised in that the fine setting loop is a variometer,
The coarse adjustment loop is made up of the loading coil and compensating electric capacity being connected in parallel.
3. medium wave navigation terminal according to claim 2, it is characterised in that the variometer is spherical variable inductance
Device.
4. medium wave navigation terminal according to claim 1, it is characterised in that the power amplifier is switch power amplification
Device, and use the pattern that output voltage is fixed, electric current changes with load.
5. medium wave navigation terminal according to claim 1, it is characterised in that the impedance transformer uses transformer isolation
Impedance matching pattern.
6. medium wave navigation terminal according to claim 1, it is characterised in that the wave band control panel detects comprising standing-wave ratio
Circuit and power amplification efficiency detection circuit.
7. a kind of method that medium wave navigation terminal intelligently cuts frequency and self-adapting tuning, it is characterised in that including step：
S1, working frequency setting is judged whether to, if so, into step S2；If it is not, into step S6；
S2, the human-computer interaction interface selection working frequency provided in industrial computer simultaneously confirm to set, by the working frequency via list
Piece machine is sent to DDS circuit, the square-wave signal of working frequency as corresponding to producing DDS circuit, while sends wave band switching command
To the MCU of wave band control panel, it is set to switch to corresponding wave band according to working frequency arranges value and the corresponding relation of wave band；
S3, judge whether with humorous table be empty, if it is empty, into step S4；If it is not, into step S5；
S4, calling match somebody with somebody humorous flow, into step S3；
S5, calling match somebody with somebody humorous table data, and the coarse adjustment gear value of reading and impedance gear value are sent into day adjusts the MCU of monitor board to carry out
Set, the pumping signal level value of reading is sent to the MCU of excitation control panel, it is performed accounting for for Sine Pulse Width Modulation
Sky is than change；
S6, transmission open high voltage power supply and instructed to control panel is encouraged, and turn on high voltage power supply；
S7, fine setting circuit controls are called, send MCU of the fine setting tuning instruction to day regulation and control making sheet, day regulates and controls making sheet according to series connection
Resonance principle control stepper motor drives ball variometer to look for antenna current maximum point, and the antenna current is returned to
Industrial computer；
S8, industrial computer judge the antenna current whether in the range of predetermined current, if so, then entering step S10, if it is not, then
Into S9；
S9, each parameter decision and handling process are called, into S8；
S10, start modulation.
8. the method that medium wave navigation terminal according to claim 7 intelligently cuts frequency and self-adapting tuning, it is characterised in that institute
State and specifically included with humorous flow：
S401, working frequency f=700kHz is set；
S402, coarse adjustment are 0 grade, and impedance gear is 5 grades, and pumping signal level is 60%；
S403, using during series resonance only fundamental current maximum principle and require ball variometer angle meet " 20~
160 " degree principles differentiate coarse adjustment gear corresponding to the working frequency, are differentiated using standing-wave ratio minimum and the best principle of power amplification efficiency
Impedance gear corresponding to the working frequency, obtain working frequency and its corresponding coarse adjustment gear, impedance gear；
S404, radio frequency is opened, perform step S7 and be tuned；
After S405, tuning, each parameter decision and handling process are performed；
Whether S406, judgement completely fill out with humorous table, if so, then entering S408；If it is not, then enter S407；
S407, basis gradually reduce working frequency, lowest operating frequency 190kHz, into S402 with humorous table rule；
S408, end.
9. the method that medium wave navigation terminal according to claim 7 intelligently cuts frequency and self-adapting tuning, it is characterised in that institute
State and specifically included with humorous table rule：
A.190kHz in~250kHz, f ± 3kHz；
B.251kHz in~350kHz, f ± 5kHz
C.351kHz in~700kHz, f ± 10kHz.
10. the method that medium wave navigation terminal according to claim 8 intelligently cuts frequency and self-adapting tuning, it is characterised in that
Each parameter judges and handling process specifically includes：
S801, check antenna electric flow valuve I, fine setting show value and source current value；
S802：Antenna current is performed to judge：
If a. I ＞=Imax, " pumping signal level " successively decreases 5% successively, until I is in INormal range (NR)Untill, perform S803；
If b. I ＜ Imax, then S803 is performed；
S803：Fine setting is performed to judge：
A. show value is finely tuned to spend at (20-160), including 20 degree and 160 degree, carry out S804；
B. show value is finely tuned in (0-20) degree, and coarse adjustment reduces 1 grade, and S801 is performed after retuning；
C. it is that coarse adjustment increases by 1 grade, and S801 is performed after retuning in (160-180) degree to finely tune show value；
S804：Impedance is performed to judge：
A., different impedances are set, check standing wave when power amplification efficiency ratio, the optimal gear of numerical value is selected, performs S805；
B. source current, more than 7A, reduces " pumping signal level " value no more than 7A；
S805：Pumping signal level is set：
A. pumping signal level value is adjusted, current antenna current value is fallen into INormal range (NR)；
B. source current is no more than 5A；
C. " tranmitting frequency, modulating frequency, impedance, coarse adjustment, pumping signal level " is stored to humorous table.
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| CN109212463A (en) * | 2018-10-30 | 2019-01-15 | 中海油信息科技有限公司 | The directionless Radio Beacon of offshore oil platform matches humorous device and method automatically |
| CN109672458A (en) * | 2018-12-11 | 2019-04-23 | 北京北广科技股份有限公司 | A kind of medium wave multifrequency transmitter control system |
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| CN111698044A (en) * | 2020-07-21 | 2020-09-22 | 南京智金科技创新服务中心 | Intelligent debugging system and method for debugging medium wave matching network |
| CN116996079A (en) * | 2023-08-02 | 2023-11-03 | 武汉船舶通信研究所(中国船舶集团有限公司第七二二研究所) | Roland emission waveform carrier phase precision regulation and control system, tuning controller and method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109212463A (en) * | 2018-10-30 | 2019-01-15 | 中海油信息科技有限公司 | The directionless Radio Beacon of offshore oil platform matches humorous device and method automatically |
| CN109672458A (en) * | 2018-12-11 | 2019-04-23 | 北京北广科技股份有限公司 | A kind of medium wave multifrequency transmitter control system |
| CN109950684A (en) * | 2019-04-25 | 2019-06-28 | 北京紫光微电子系统有限公司 | It is a kind of for the aerial array and its application method of contactless smart card to be read in larger range at a distance |
| CN111698044A (en) * | 2020-07-21 | 2020-09-22 | 南京智金科技创新服务中心 | Intelligent debugging system and method for debugging medium wave matching network |
| CN116996079A (en) * | 2023-08-02 | 2023-11-03 | 武汉船舶通信研究所(中国船舶集团有限公司第七二二研究所) | Roland emission waveform carrier phase precision regulation and control system, tuning controller and method |
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Effective date of registration: 20171214 Address after: 350000 Fujian province Fuzhou Mawei District Xingda Road No. 16 Applicant after: Fujian Xinghai Communication Technology Co., Ltd. Applicant after: CNOOC INFORMATION TECHNOLOGY CO., LTD. Address before: 350000 Fujian province Fuzhou Mawei District Xingda Road No. 16 Applicant before: Fujian Xinghai Communication Technology Co., Ltd. |
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Application publication date: 20171110 |