CN105553502A - Shortwave radio and transmission protection method thereof - Google Patents
Shortwave radio and transmission protection method thereof Download PDFInfo
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- CN105553502A CN105553502A CN201511028353.3A CN201511028353A CN105553502A CN 105553502 A CN105553502 A CN 105553502A CN 201511028353 A CN201511028353 A CN 201511028353A CN 105553502 A CN105553502 A CN 105553502A
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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
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/40—Circuits
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Abstract
The invention discloses a shortwave radio and a transmission protection method thereof. The shortwave radio comprises a shortwave antenna, an automatic antenna tuner, a shortwave transceiver, a control box, a data terminal, and a voice signal terminal, wherein the shortwave transceiver mainly completes the sending and receiving of a voice or data signal, self-adaptation, frequency hopping, parameter injection, communication with the automatic antenna communication tuner, and communication with the control box; the automatic antenna tuner completes the impedance matching between the shortwave transceiver and the shortwave antenna, so as to ensure that a forward power transmitted by the shortwave transceiver is transmitted through the shortwave antenna, and a transmitted backward power is as low as possible; the control box is used for controlling and displaying the self-adaptation, frequency hopping or tuning of the shortwave transceiver; the voice signal terminal is used for sending the voice signal to the shortwave transceiver or receiving the voice signal sent by the shortwave transceiver; the data terminal is used for sending the data signal to the shortwave transceiver or receiving the data signal sent by the shortwave transceiver.
Description
Technical field
The invention belongs to New Technology Of Shortwave Communication field, particularly a kind of short-wave radio set and transmitting guard method thereof.
Background technology
Along with the development of science and technology; short-wave radio set mode of operation changes data communication widely into by single Speech Communication; along with becoming increasingly complex of data communication; make the short-wave radio set of demand fulfillment requirements at the higher level; and one of transmitting power defencive function self-protection measure that to be short-wave radio set important, this also has higher requirement to self-protecting method during short-wave radio set transmitting power.At present, short-wave radio set reliability, stability, real-time are not high, there will be the situation of launching protection by mistake under harsh service condition yet.
Summary of the invention
Have problems for above prior art; the object of the invention is to propose a kind of short-wave radio set and launch guard method; this kind of short-wave radio set and transmitting guard method thereof can effectively avoid the mistake in emission process to protect, and effectively can improve reliability, stability, the real-time of short-wave radio set.
For reaching above-mentioned technical purpose, the present invention adopts following technical scheme to be achieved.
Technical scheme 1:
A kind of short-wave radio set, comprising: short-wave antenna, automatic antenna tuner, short-wave transceiver, control box, data terminal, voice signal terminal;
Automatic antenna tuner comprises antenna input and antenna sending and receiving end; Short-wave transceiver comprises the first sending and receiving end, second and controls sending and receiving end, the first data transmit-receive end, the first voice transmitting-receiving end; Voice signal terminal comprises voice signal sending and receiving end; Data terminal comprises the second data transmit-receive end; Control box comprises the 3rd and controls sending and receiving end;
The input of short-wave antenna access automatic antenna tuner, first sending and receiving end of the two-way electrical connection short-wave transceiver in antenna sending and receiving end of automatic antenna tuner, second of short-wave transceiver controls the 3rd of the two-way electrical connection control box in sending and receiving end and controls sending and receiving end, second data transmit-receive end of the two-way electrical connection data terminal of the first data transmit-receive end of short-wave transceiver, the voice signal sending and receiving end of the first voice transmitting-receiving end two-way electrical connection voice signal terminal of short-wave transceiver;
Short-wave transceiver mainly completes the transmitting-receiving of voice signal or data-signal, self adaptation, frequency hopping, parameter are injected, with the communication of automatic antenna tuner, the communication with control box, automatic antenna tuner mainly completes the impedance matching between short-wave transceiver and short-wave antenna, ensure that the forward power that short-wave transceiver is launched is launched from short-wave antenna, and the backward power of launching is little as far as possible; Control box for controlling the tuning state of short-wave transceiver, and is shown respectively; Voice signal terminal is for sending voice signal to short-wave transceiver, or the voice signal that reception short-wave transceiver sends over, and data terminal is used for sending data-signal to short-wave transceiver, or the data-signal that reception short-wave transceiver sends over.
Technical scheme 2:
A kind of transmitting guard method of short-wave radio set; based on described short-wave radio set; described short-wave radio set comprises short-wave antenna, automatic antenna tuner, short-wave transceiver, control box, data terminal, voice signal terminal, and the transmitting guard method of described short-wave radio set, comprises the following steps:
Set up the short-wave radio set comprising short-wave antenna, automatic antenna tuner, short-wave transceiver, control box, data terminal, voice signal terminal, described short-wave transceiver inside comprises power amplifier, radio frequency amplifying signal is obtained after radiofrequency signal is by power amplifier, described radio frequency amplifying signal comprises forward power radiofrequency signal and reverse radio-frequency power signal, obtain forward accordingly and detect voltage and inverse detection voltage, and then obtain forward and detect voltage and standing-wave ratio corresponding to inverse detection voltage; When described forward detects voltage and standing-wave ratio corresponding to inverse detection voltage exceedes the standing-wave ratio critical value of setting, short-wave radio set starting protection pattern;
Protection thresholding is set according to described inverse detection voltage, the sampling voltage that described shutter is limited to described inverse detection voltage when being P, and detects reverse voltage in real time; When the reverse voltage detected exceedes described sampling voltage, short-wave radio set starting protection pattern.
Beneficial effect of the present invention:
First; the transmitting guard method of a kind of short-wave radio set of the present invention can follow the tracks of the service condition of a large amount of short-wave radio set; short-wave transceiver wherein in short-wave radio set there will not be the damage caused because reflection power is large after adopting and launching design protection; the stability that short-wave radio set uses can be improved simultaneously; this kind effectively can solve user based on the automatic antenna tuner in the transmitting guard method of short-wave radio set and use during short-wave radio set and frequently occur guard mode; and the damaged condition of automatic antenna tuner can be greatly reduced, extension device useful life.
Second; the transmitting guard method of a kind of short-wave radio set of the present invention improves the functional reliability of short-wave radio set greatly; reduce the risk existed in use procedure; not only can be user-friendly to; also can be the maintenance cost of factory's reduction short-wave radio set simultaneously; improve the product competitiveness of factory, and considerable economic benefit can be created for factory.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.
Fig. 1 is that a kind of short-wave radio set of the present invention connects block diagram;
Fig. 2 is the forward and reverse power samples schematic diagram of short-wave transceiver.
Embodiment
With reference to Fig. 1, for a kind of short-wave radio set of the present invention connects block diagram; A kind of short-wave radio set, comprising: short-wave antenna, automatic antenna tuner, short-wave transceiver, control box, data terminal, voice signal terminal; Automatic antenna tuner comprises antenna input and antenna sending and receiving end; Short-wave transceiver comprises the first sending and receiving end, second and controls sending and receiving end, the first data transmit-receive end, the first voice transmitting-receiving end; Voice signal terminal comprises voice signal sending and receiving end; Data terminal comprises the second data transmit-receive end; Control box comprises the 3rd and controls sending and receiving end.
The input of short-wave antenna access automatic antenna tuner, the first sending and receiving end of the two-way electrical connection short-wave transceiver of RS422 is passed through in the antenna sending and receiving end of automatic antenna tuner, second of short-wave transceiver controls sending and receiving end and controls sending and receiving end by the 3rd of the two-way electrical connection control box of RS422, second data transmit-receive end of the two-way electrical connection data terminal of the first data transmit-receive end of short-wave transceiver, the voice signal sending and receiving end of the first voice transmitting-receiving end two-way electrical connection voice signal terminal of short-wave transceiver.
Short-wave transceiver mainly completes the transmitting-receiving of voice signal or data-signal, self adaptation, frequency hopping, parameter are injected, with the communication of automatic antenna tuner, the communication with control box, automatic antenna tuner mainly completes the impedance matching between short-wave transceiver and short-wave antenna, ensure that the forward power that short-wave transceiver is launched is launched from short-wave antenna, and the backward power of launching is little as far as possible; Control box for controlling the tuning state of short-wave transceiver, and is shown respectively; Voice signal terminal is for sending voice signal to short-wave transceiver, or the voice signal that reception short-wave transceiver sends over, and data terminal is used for sending data-signal to short-wave transceiver, or the data-signal that reception short-wave transceiver sends over; Wherein, the data terminal in the present embodiment adopts 905 data terminals.
A kind of transmitting guard method of short-wave radio set; based on described short-wave radio set; described short-wave radio set comprises short-wave antenna, automatic antenna tuner, short-wave transceiver, control box, data terminal, voice signal terminal, and the transmitting guard method of described short-wave radio set, comprises the following steps:
Set up the short-wave radio set comprising short-wave antenna, automatic antenna tuner, short-wave transceiver, control box, data terminal, voice signal terminal, described short-wave transceiver inside comprises power amplifier, radio frequency amplifying signal is obtained after radiofrequency signal is by power amplifier, described radio frequency amplifying signal comprises forward power radiofrequency signal and reverse radio-frequency power signal, obtain forward accordingly and detect voltage and inverse detection voltage, and then obtain forward and detect voltage and standing-wave ratio corresponding to inverse detection voltage; When described forward detects voltage and standing-wave ratio corresponding to inverse detection voltage exceedes the standing-wave ratio critical value of setting, short-wave radio set starting protection pattern.
Particularly, with reference to Fig. 2, be the forward and reverse power samples schematic diagram of short-wave transceiver; The design of short-wave transceiver mainly comprises the sampling of forward and reverse power and protection thresholding is arranged; Short-wave transceiver inside comprises power amplifier, microcomputer and single-chip microcomputer; Described forward and reverse power sampling is the design basis that protection short-wave radio set transceiver launched by short-wave radio set, is completed by the power amplifier of short-wave transceiver letter machine inside, microcomputer and single-chip microcomputer.
Radiofrequency signal exports radio frequency amplifying signal through power amplifier, described radio frequency amplifying signal comprises forward power radiofrequency signal and reverse radio-frequency power signal, described forward power radiofrequency signal is obtained the forward power radiofrequency signal after being coupled through overcoupling, described backward power radiofrequency signal is obtained the backward power radiofrequency signal after being coupled through overcoupling, then forward detection is carried out to the forward power radiofrequency signal after described coupling, export forward and detect voltage; Inverse detection is carried out to the backward power radiofrequency signal after described coupling; export inverse detection voltage; single-chip microcomputer is by calculating the ratio that forward detects voltage and inverse detection voltage in real time; and obtain forward accordingly and detect voltage and standing-wave ratio corresponding to inverse detection voltage; after described forward detects voltage and standing-wave ratio corresponding to inverse detection voltage exceedes the standing-wave ratio critical value of setting, start short-wave radio set protected mode.
Wherein, the protective device launched to make short-wave radio set more accurately, more perfect; described single-chip microcomputer is 80C552 single-chip microcomputer; this single-chip microcomputer can judge the standing-wave ratio critical value that described forward detects voltage and standing-wave ratio corresponding to inverse detection voltage and whether exceedes setting, and protects short-wave transceiver.
Judged by the microcomputer in described power amplifier; if the ratio of forward and reverse detection voltage exceedes standing-wave ratio critical value; 80C552 single-chip microcomputer cuts out the radio frequency amplifier excitation of short-wave transceiver inside; and produce protection information corresponding to control and protection circuit accordingly; described protection information is sent to control box show; reach the object of protection short-wave radio set with this, and point out user's short-wave radio set to be in transmitting guard mode.
Protection thresholding is set according to described inverse detection voltage, the sampling voltage that described shutter is limited to described inverse detection voltage when being P, and detects reverse voltage in real time; When the reverse voltage detected exceedes described sampling voltage, short-wave radio set starting protection pattern.
Particularly, the setting of protection thresholding is the protection of short-wave radio set to short-wave transceiver, in microcomputer, protection thresholding is arranged to backward power sampling at power amplifier, the sampling voltage that this protection thresholding is set to described inverse detection voltage when being P, sampling voltage when selecting described inverse detection voltage to be P is because the reflection power of radiofrequency signal in short-wave radio set use procedure is generally at about 20W, reflection power when described inverse detection voltage is P leaves surplus to short-wave radio set normal transmission, makes to there will not be frequent protection in short-wave radio set use procedure; In addition in short-wave radio set use procedure, the reflection power of radiofrequency signal does not form impact close to during P to communication, and short-wave radio set can normally be worked.
Microcomputer in the present embodiment is on power amplifier, and microcomputer comprises radio-frequency front-end excitation, the filter cell of short-wave transceiver detects in real time to the backward power that short-wave transceiver receives, sampled by sample coil again, obtain Opposed crossing signal, then by detector diode, detection is carried out to described Opposed crossing signal, obtain detection signal, described detection signal is sent to the microcomputer in Power Amplifier Unit, reverse protection voltage threshold preset by microcomputer, the detecting circuit that backward power when described reverse protection voltage threshold is 40W is corresponding, when the reverse voltage of detection signal exceedes default reverse protection voltage threshold, microcomputer in Power Amplifier Unit reduces radio-frequency front-end excitation on the one hand, short-wave transceiver is protected with this, and corresponding guard mode is sent to control box shows.
Automatic antenna tuner inside in the present embodiment uses ceramic skeleton, and described ceramic skeleton is close to metal base plate or the surrounding framework of automatic antenna tuner, for balancing the internal heat of automatic antenna tuner, completes the transmitting protection of short-wave radio set with this.
Particularly, automatic antenna tuner completes the resonance matching work of short-wave transceiver and aircraft antenna, but after described resonance matching work completes transmitting high-power RF signal process in, the coupling high-frequency inductor coil that automatic antenna tuner can access in tuning sampling microwave network passes through big current, automatic antenna tuner self is made to produce larger heat, temperature sharply raises, and then the impedance parameter mismatch causing initial resonance matching good, short-wave transceiver and short-wave antenna off resonance, the backward power of the radiofrequency signal that short-wave antenna is launched is more than 40W, short-wave radio set occurs launching protection phenomenon, therefore automatic antenna tuner needs to consider the high temperature resistant of internal network in design, heat dissipation design.
Automatic antenna tuner completes the resonance matching work of short-wave transceiver and short-wave antenna, namely the tuning process of automatic antenna tuner, and the automatic antenna tuner inside of the present embodiment comprises inductor, capacitor, standing-wave ratio testing circuit; Described inductor, capacitor and short-wave antenna composition matching network, described inductor and capacitor are according to the tuning track access of matching network or when departing from matching network, the network state of matching network constantly changes, standing-wave ratio testing circuit will detect that the standing-wave ratio of real-time change gives microprocessor P89C51RD+ again, so continuous circulation, until short-wave radio set and short-wave antenna realize mating.
In actual tuning process, the RF signal power detected is only 20W, and the RF signal power that short-wave antenna is launched remains on more than 200W, the matching network temperature generation great variety of automatic antenna tuner after continuous wave high power launches 5min, the inductor used in matching network and each self-corresponding value temperature influence of capacitor are sent out respectively and can be changed, and make short-wave radio set and the off resonance of short-wave antenna matching status.
In the process of long-time transmitting high-power RF signal, automatic antenna tuner continues to produce heat, but because the ceramic skeleton increased is close to metal base plate or the surrounding framework of automatic antenna tuner in installation process, can on the heat conduction of ceramic skeleton to the metal base plate or surrounding framework of automatic antenna tuner, reduce the internal network temperature of automatic antenna tuner, and then reach thermal equilibrium state, the matching status of automatic antenna tuner and the power emission time of short-wave radio set can't be had influence on.
A kind of transmitting guard method based on short-wave radio set of the present invention is higher to accuracy requirement, and the sampling of forward and reverse power is the basis that protective device launched by short-wave radio set, therefore component reliability in forward and reverse power sample circuit is higher than the reliability of resistance, electric capacity or integrated circuit; In addition, when arranging protection threshold voltage, backward power must not be got and is less than 40W power, otherwise frequently can occur that guard mode launched by short-wave radio set, and then affects the normal use of short-wave radio set; After occurring that guard mode launched by short-wave radio set, also need to check short-wave antenna, cable, because the short-wave antenna damaged, cable there will be short-wave radio set equally launch guard mode, short-wave radio set can be removed by the operation of control box and launch guard mode.Therefore, after high temperature resistant, heat radiation considered by automatic antenna tuner, the ceramic skeleton that also must increase is installed, and must contact completely with the metal base plate of automatic antenna tuner or surrounding framework when installing.
Transmitting guard method based on short-wave radio set of the present invention is at the supporting sky of plant produced, the airborne short-wave radio set of 200W of a naval 4-5 model has carried out applying widely, be equipped in a large number on series aircraft, when Data-Link does not use in a large number, the protective device that short-wave radio set is launched effectively solves short-wave antenna because of ambient pressure, the antenna parameter change that the environmental factors such as temperature cause causes short-wave radio set off resonance, and after short-wave radio set Data-Link uses on a large scale, it is long-time that the design protection of automatic antenna tuner efficiently solves short-wave radio set, the problem of high-power transmitting easily off resonance afterwards.
Obviously, those skilled in the art can carry out various change and modification to the present invention and not depart from the spirit and scope of the present invention; Like this, if these amendments of the present invention and modification belong within the scope of the claims in the present invention and equivalent technologies thereof, then the present invention is also intended to comprise these change and modification.
Claims (3)
1. a short-wave radio set, is characterized in that, comprising: short-wave antenna, automatic antenna tuner, short-wave transceiver, control box, data terminal, voice signal terminal;
Automatic antenna tuner comprises antenna input and antenna sending and receiving end; Short-wave transceiver comprises the first sending and receiving end, second and controls sending and receiving end, the first data transmit-receive end, the first voice transmitting-receiving end; Voice signal terminal comprises voice signal sending and receiving end; Data terminal comprises the second data transmit-receive end; Control box comprises the 3rd and controls sending and receiving end;
The input of short-wave antenna access automatic antenna tuner, first sending and receiving end of the two-way electrical connection short-wave transceiver in antenna sending and receiving end of automatic antenna tuner, second of short-wave transceiver controls the 3rd of the two-way electrical connection control box in sending and receiving end and controls sending and receiving end, second data transmit-receive end of the two-way electrical connection data terminal of the first data transmit-receive end of short-wave transceiver, the voice signal sending and receiving end of the first voice transmitting-receiving end two-way electrical connection voice signal terminal of short-wave transceiver;
Short-wave transceiver completes the transmitting-receiving of voice signal or data-signal, self adaptation, frequency hopping, parameter are injected, with the communication of automatic antenna tuner, the communication with control box; Automatic antenna tuner completes the impedance matching between short-wave transceiver and short-wave antenna; Control box for controlling the tuning state of short-wave transceiver, and is shown respectively; Voice signal terminal is used for sending voice signal to short-wave transceiver, or the voice signal that reception short-wave transceiver sends over; Data terminal is used for sending data-signal to short-wave transceiver, or the data-signal that reception short-wave transceiver sends over.
2. the transmitting guard method of a short-wave radio set; based on short-wave radio set described in claim 1; described short-wave radio set comprises short-wave antenna, automatic antenna tuner, short-wave transceiver, control box, data terminal, voice signal terminal; it is characterized in that; the transmitting guard method of described short-wave radio set, comprises the following steps:
Set up the short-wave radio set comprising short-wave antenna, automatic antenna tuner, short-wave transceiver, control box, data terminal, voice signal terminal, described short-wave transceiver inside comprises power amplifier, radio frequency amplifying signal is obtained after radiofrequency signal is by power amplifier, described radio frequency amplifying signal comprises forward power radiofrequency signal and reverse radio-frequency power signal, obtain forward accordingly and detect voltage and inverse detection voltage, and then obtain forward and detect voltage and standing-wave ratio corresponding to inverse detection voltage; When described forward detects voltage and standing-wave ratio corresponding to inverse detection voltage exceedes the standing-wave ratio critical value of setting, short-wave radio set starting protection pattern;
Protection thresholding is set according to described inverse detection voltage, the sampling voltage that described shutter is limited to described inverse detection voltage when being P, and detects reverse voltage in real time; When the reverse voltage detected exceedes described sampling voltage, short-wave radio set starting protection pattern.
3. the transmitting guard method of a kind of short-wave radio set as claimed in claim 2, is characterized in that, described forward detects voltage and inverse detection voltage, and its procurement process is:
Radiofrequency signal exports radio frequency amplifying signal through power amplifier, described radio frequency amplifying signal comprises forward power radiofrequency signal and reverse radio-frequency power signal, described forward power radiofrequency signal is obtained the forward power radiofrequency signal after being coupled through overcoupling, described backward power radiofrequency signal is obtained the backward power radiofrequency signal after being coupled through overcoupling, then forward detection is carried out to the forward power radiofrequency signal after described coupling, export forward and detect voltage; Inverse detection is carried out to the backward power radiofrequency signal after described coupling, exports inverse detection voltage.
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| CN201511028353.3A CN105553502B (en) | 2015-12-31 | 2015-12-31 | A kind of short-wave radio set and its transmitting guard method |
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| CN201511028353.3A CN105553502B (en) | 2015-12-31 | 2015-12-31 | A kind of short-wave radio set and its transmitting guard method |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111049537A (en) * | 2019-12-26 | 2020-04-21 | 北京中科晶上科技股份有限公司 | Satellite communication terminal antenna impedance matching method and device |
| CN111917424A (en) * | 2020-08-05 | 2020-11-10 | 南京熊猫电子股份有限公司 | Low-emission broadband noise no-load short-wave radio station and implementation method thereof |
| CN113949398A (en) * | 2021-10-18 | 2022-01-18 | 海南暗宙科技有限公司 | Portable intelligent short wave signal receiving and processing device and method and storage medium |
| CN114866096A (en) * | 2022-04-15 | 2022-08-05 | 广州海格通信集团股份有限公司 | Antenna impedance tuning method, antenna impedance tuning device, terminal equipment and storage medium |
| CN115051717A (en) * | 2022-07-04 | 2022-09-13 | 中国科学院重庆绿色智能技术研究院 | Radio station and antenna integrated communication device and communication method |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111049537A (en) * | 2019-12-26 | 2020-04-21 | 北京中科晶上科技股份有限公司 | Satellite communication terminal antenna impedance matching method and device |
| CN111049537B (en) * | 2019-12-26 | 2022-04-29 | 北京中科晶上科技股份有限公司 | Satellite communication terminal antenna impedance matching method and device |
| CN111917424A (en) * | 2020-08-05 | 2020-11-10 | 南京熊猫电子股份有限公司 | Low-emission broadband noise no-load short-wave radio station and implementation method thereof |
| CN111917424B (en) * | 2020-08-05 | 2022-02-22 | 南京熊猫电子股份有限公司 | Low-emission broadband noise no-load short-wave radio station and implementation method thereof |
| CN113949398A (en) * | 2021-10-18 | 2022-01-18 | 海南暗宙科技有限公司 | Portable intelligent short wave signal receiving and processing device and method and storage medium |
| CN114866096A (en) * | 2022-04-15 | 2022-08-05 | 广州海格通信集团股份有限公司 | Antenna impedance tuning method, antenna impedance tuning device, terminal equipment and storage medium |
| CN114866096B (en) * | 2022-04-15 | 2023-09-01 | 广州海格通信集团股份有限公司 | Antenna impedance tuning method and device, terminal equipment and storage medium |
| CN115051717A (en) * | 2022-07-04 | 2022-09-13 | 中国科学院重庆绿色智能技术研究院 | Radio station and antenna integrated communication device and communication method |
| CN115051717B (en) * | 2022-07-04 | 2024-04-09 | 中国科学院重庆绿色智能技术研究院 | Radio station and antenna integrated communication device and communication method |
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| CN105553502B (en) | 2018-06-05 |
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