CN109274383A - A kind of radio frequency switching device - Google Patents
A kind of radio frequency switching device Download PDFInfo
- Publication number
- CN109274383A CN109274383A CN201811318060.2A CN201811318060A CN109274383A CN 109274383 A CN109274383 A CN 109274383A CN 201811318060 A CN201811318060 A CN 201811318060A CN 109274383 A CN109274383 A CN 109274383A
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- driver
- main control
- control chip
- radio frequency
- standby
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- 238000006243 chemical reaction Methods 0.000 claims abstract description 15
- 238000004891 communication Methods 0.000 claims abstract description 4
- 230000009466 transformation Effects 0.000 claims description 3
- 230000005284 excitation Effects 0.000 description 9
- 238000010586 diagram Methods 0.000 description 7
- 230000006870 function Effects 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000006386 memory function Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000011897 real-time detection Methods 0.000 description 1
Classifications
-
- 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
-
- 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
- H04B1/74—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 for increasing reliability, e.g. using redundant or spare channels or apparatus
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The invention discloses a kind of radio frequency switching device, power module is used to provide operating voltage to modules；What main control chip was used to complete whole equipment detects and controls work；The electrical level match that signal conversion module is used to complete between master driver, the RS-232 signal of standby driver and the Transistor-Transistor Logic level of main control chip is converted, to realize the normal communication between master driver, standby driver and main control chip；RF coaxial relay is used under the control of main control chip, realizes the connection switched between master driver, standby driver and transmitting station；Operation keyboard is used to complete the system setting and the selection of automatic/hand switch mode of radio frequency switching device；State display module is used to show the working status parameter of radio frequency switching device；Fictitious load is for when working normally, master driver, standby driver to be by relay, and one is connected to transmitting station, another load being necessarily connected to, to realize warm back-up.The present invention substantially increases the time efficiency of switching, realizes uninterrupted switching.
Description
Technical field
The present invention relates to technical field of electronic products, and in particular to a kind of radio frequency switching device.
Background technique
To guarantee that signal is uninterrupted, generallys use double excitation backup and send, signal source is connected to the input of active and standby excitation simultaneously
End, two excitation output ends are connected to switching equipment simultaneously.Under normal circumstances, the output signal of master drive is sent to hair by switching equipment
Injection device switches to standby excitation if master drive breaks down, however, present switching equipment mostly manually controls, this
Kind mode real-time is poor and relies on artificial discovery and monitoring.
Summary of the invention
In view of this, in order to solve the above problem in the prior art, the present invention proposes a kind of radio frequency switching device, passes through
Processor detects the working condition of master drive, standby excitation, judges whether active and standby excitation input and output satisfy the criteria, so
Determine it is access master drive or standby excitation afterwards, substantially increases the time efficiency of switching, realize uninterrupted switching.
The present invention is solved the above problems by following technological means:
A kind of radio frequency switching device, including master driver, standby driver, power module, main control chip, signal modulus of conversion
Block, RF coaxial relay, operation keyboard, state display module and fictitious load；
The signal conversion module is electrically connected with master driver, standby driver, main control chip respectively；
The main control chip is electrically connected with power module, RF coaxial relay, operation keyboard, state display module respectively
It connects；
The power module is electrically connected with RF coaxial relay, state display module respectively；
The RF coaxial relay is electrically connected with fictitious load；
The power module provides operating voltage to modules for realizing the transformation of 220V alternating current；
What the main control chip was used to complete whole equipment detects and controls work；
The signal conversion module is for completing master driver, standby the RS-232 signal of driver and the TTL of main control chip
Electrical level match conversion between level, to realize the normal communication between master driver, standby driver and main control chip；
The RF coaxial relay is used under the control of main control chip, realizes master driver, standby driver and transmitting
The connection switched between platform；
The operation keyboard is used to complete the system setting and the selection of automatic/hand switch mode of radio frequency switching device；
The state display module is used to show the working status parameter of radio frequency switching device；
When the fictitious load is used to work normally, by relay, one is connected to transmitting station for master driver, standby driver,
Another load being necessarily connected to, to realize warm back-up.
Further, the main control chip uses M0516 chip.
Further, the system setting that the operation keyboard completes switching equipment includes pre-seting radio frequency power output and sound
The frequency switching delay time.
Compared with prior art, beneficial effects of the present invention include at least:
1, it realizes and automatically switches, air interference and Avoidance；
2, access master drive or standby excitation are judged automatically, the time efficiency of switching is substantially increased, realization is uninterruptedly cut
It changes.
Detailed description of the invention
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings other
Attached drawing.
Fig. 1 is the circuit block diagram of radio frequency switching device of the present invention；
Fig. 2 is the circuit diagram of power module of the present invention；
Fig. 3 is the circuit diagram of state display module of the present invention；
Fig. 4 is the circuit diagram of main control chip of the present invention；
Fig. 5 is the circuit diagram of signal conversion module of the present invention；
Fig. 6 is the circuit diagram of operation of the present invention keyboard；
Fig. 7 is the circuit diagram of RF coaxial relay of the present invention.
Specific embodiment
In order to make the foregoing objectives, features and advantages of the present invention clearer and more comprehensible, below in conjunction with attached drawing and specifically
Embodiment technical solution of the present invention is described in detail.It should be pointed out that described embodiment is only this hair
Bright a part of the embodiment, instead of all the embodiments, based on the embodiments of the present invention, those of ordinary skill in the art are not having
Every other embodiment obtained under the premise of creative work is made, shall fall within the protection scope of the present invention.
As shown in figs. 1-7, the present invention provides a kind of radio frequency switching device, including master driver, standby driver, power supply mould
Block, main control chip, signal conversion module, RF coaxial relay, operation keyboard, state display module and fictitious load；
The signal conversion module is electrically connected with master driver, standby driver, main control chip respectively；
The main control chip is electrically connected with power module, RF coaxial relay, operation keyboard, state display module respectively
It connects；
The power module is electrically connected with RF coaxial relay, state display module respectively；
The RF coaxial relay is electrically connected with fictitious load；
The power module provides operating voltage to modules for realizing the transformation of 220V alternating current；
What the main control chip was used to complete whole equipment detects and controls work；Using M0516 chip；
The signal conversion module is for completing master driver, standby the RS-232 signal of driver and the TTL of main control chip
Electrical level match conversion between level, to realize the normal communication between master driver, standby driver and main control chip；
The RF coaxial relay is used under the control of main control chip, realizes master driver, standby driver and transmitting
The connection switched between platform；
The system setting that the operation keyboard is used to complete radio frequency switching device (pre-sets radio frequency power output and audio is cut
Change delay time), automatic/hand switch mode selection etc.；
The state display module is used to show the working status parameter of radio frequency switching device；
When the fictitious load is used to work normally, by relay, one is connected to transmitting station for master driver, standby driver,
Another load being necessarily connected to, to realize warm back-up.When normal work, for active and standby driver by relay, one is connected to hair
Platform is penetrated, another is necessarily connected to fictitious load, to realize warm back-up.
The course of work of the invention is as follows:
A, B two-way radio frequency inputs RF IN, and 1 road radio frequency exports RF OUT；It is main signal that switch, which defaults the road A, and the road B is standby
Use signal.
1, test is the modulator of same channel in automatic switchover mode, and main signal is the road A, and sub signal is the road B；Work as two-way
Signal sets level and differs 10db, and the road A level will automatically switch to the road B when being lower than the road B 10db；When the road A signal inspection just
Chang Hou, when two paths of signals level is equal, it will automatically switch back into the road main signal A.
2, when test is multichannel transmission, when two paths of signals general power setting level differs 10db, the road A level value general power
Have abnormal, it will automatically switch on another way B signal, the road B signal works normally when a little；After the road A signal inspection is normal,
After two paths of signals is normal, default is also used the road B space signal by original equipment.Such as not manual switching, the road A will not be automatically switched back into
On, until the road B signal is faulty.(two paths of signals is normal, is defaulted as A main signal, B sub signal, when switching, if not
Manual switching, all can good that of default signal be all the way main signal).
3, under network management function state (in local area network), equipment working state and level can be monitored, and can monitor using
Signal that on the way, and realize under network management state: A, B two paths of signals switches.
4, A, B manual switching also may be implemented in front panel, if setting automatic switching function, is damaged on the value range of setting
Automatic A, B two paths of signals switching is moved in Lu Shihui realization.
5, in equipment normal operation, there is memory function after power-off, and prevention at radio-frequency port has straight-through function after a loss of power, lead directly to
It is straight-through that function can be defaulted as the road A.
The present invention uses microprocessor, cooperates perfect automatic monitored control system circuit, at this moment can accurately monitor each road input
Level, reliably the state of control switch, can be set to automatically switch and manual switching mode；
In automatic mode, radio frequency switch can be to radio-frequency input signals real-time detection, if main path signal quality by the present invention
Lower than handoff threshold set by user, then switch can select standby road as output at once.In a manual mode, it is selected by user
Radio-frequency channel；
The present invention uses computer under network management environment under exchange-column shift mode, by user, is visited using browser
It asks that equipment is configured, is switched to a specified time point on specified radio-frequency channel A or B, and at another time point
It switches back again and (supports the setting of four any point-in-times at present).
Compared with prior art, beneficial effects of the present invention include at least:
1, it realizes and automatically switches, air interference and Avoidance；
2, access master drive or standby excitation are judged automatically, the time efficiency of switching is substantially increased, realization is uninterruptedly cut
It changes.
The embodiments described above only express several embodiments of the present invention, and the description thereof is more specific and detailed, but simultaneously
Limitations on the scope of the patent of the present invention therefore cannot be interpreted as.It should be pointed out that for those of ordinary skill in the art
For, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to guarantor of the invention
Protect range.Therefore, the scope of protection of the patent of the invention shall be subject to the appended claims.
Claims (3)
1. a kind of radio frequency switching device, which is characterized in that including master driver, standby driver, power module, main control chip, letter
Number conversion module, RF coaxial relay, operation keyboard, state display module and fictitious load；
The signal conversion module is electrically connected with master driver, standby driver, main control chip respectively；
The main control chip is electrically connected with power module, RF coaxial relay, operation keyboard, state display module respectively；
The power module is electrically connected with RF coaxial relay, state display module respectively；
The RF coaxial relay is electrically connected with fictitious load；
The power module provides operating voltage to modules for realizing the transformation of 220V alternating current；
What the main control chip was used to complete whole equipment detects and controls work；
The signal conversion module is for completing master driver, standby the RS-232 signal of driver and the Transistor-Transistor Logic level of main control chip
Between electrical level match conversion, to realize the normal communication between master driver, standby driver and main control chip；
The RF coaxial relay is used under the control of main control chip, realize master driver, standby driver and transmitting station it
Between the connection that switches；
The operation keyboard is used to complete the system setting and the selection of automatic/hand switch mode of radio frequency switching device；
The state display module is used to show the working status parameter of radio frequency switching device；
The fictitious load is for when working normally, by relay, one to be connected to transmitting station, another for master driver, standby driver
A load being necessarily connected to, to realize warm back-up.
2. radio frequency switching device according to claim 1, which is characterized in that the main control chip uses M0516 chip.
3. radio frequency switching device according to claim 1, which is characterized in that the operation keyboard completes switching equipment and is
System setting includes pre-seting radio frequency power output and Audio conversion delay time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811318060.2A CN109274383A (en) | 2018-11-07 | 2018-11-07 | A kind of radio frequency switching device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811318060.2A CN109274383A (en) | 2018-11-07 | 2018-11-07 | A kind of radio frequency switching device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109274383A true CN109274383A (en) | 2019-01-25 |
Family
ID=65192982
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811318060.2A Pending CN109274383A (en) | 2018-11-07 | 2018-11-07 | A kind of radio frequency switching device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109274383A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02166842A (en) * | 1988-12-20 | 1990-06-27 | Fujitsu Ltd | Hot stand-by switching system |
| CN101752907A (en) * | 2010-01-11 | 2010-06-23 | 山东康威通信技术有限公司 | Versatile modular monitoring host computer |
| CN201654562U (en) * | 2010-01-11 | 2010-11-24 | 山东康威通信技术股份有限公司 | Modularization multi-functional monitoring host machine |
| CN102457289A (en) * | 2011-12-28 | 2012-05-16 | 熊猫电子集团有限公司 | Exciter setting method and exciter of shortwave four-channel diversity transmission based on space time coding |
| CN204009447U (en) * | 2014-07-18 | 2014-12-10 | 摩比天线技术（深圳）有限公司 | Be applied to the load automatic switch circuit of current detecting and the equipment that belt current detects |
| CN204790402U (en) * | 2015-04-30 | 2015-11-18 | 杭州众传数字设备有限公司 | Radio frequency switch |
| CN209030192U (en) * | 2018-11-07 | 2019-06-25 | 深圳市菲菱科思通信技术股份有限公司 | A kind of radio frequency switching device |
-
2018
- 2018-11-07 CN CN201811318060.2A patent/CN109274383A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02166842A (en) * | 1988-12-20 | 1990-06-27 | Fujitsu Ltd | Hot stand-by switching system |
| CN101752907A (en) * | 2010-01-11 | 2010-06-23 | 山东康威通信技术有限公司 | Versatile modular monitoring host computer |
| CN201654562U (en) * | 2010-01-11 | 2010-11-24 | 山东康威通信技术股份有限公司 | Modularization multi-functional monitoring host machine |
| CN102457289A (en) * | 2011-12-28 | 2012-05-16 | 熊猫电子集团有限公司 | Exciter setting method and exciter of shortwave four-channel diversity transmission based on space time coding |
| CN204009447U (en) * | 2014-07-18 | 2014-12-10 | 摩比天线技术（深圳）有限公司 | Be applied to the load automatic switch circuit of current detecting and the equipment that belt current detects |
| CN204790402U (en) * | 2015-04-30 | 2015-11-18 | 杭州众传数字设备有限公司 | Radio frequency switch |
| CN209030192U (en) * | 2018-11-07 | 2019-06-25 | 深圳市菲菱科思通信技术股份有限公司 | A kind of radio frequency switching device |
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