CN106788491A - A kind of automatic tuning apparatus and method based on ARM - Google Patents
A kind of automatic tuning apparatus and method based on ARM Download PDFInfo
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- CN106788491A CN106788491A CN201611183624.7A CN201611183624A CN106788491A CN 106788491 A CN106788491 A CN 106788491A CN 201611183624 A CN201611183624 A CN 201611183624A CN 106788491 A CN106788491 A CN 106788491A
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- tuning
- servo motor
- capacitance
- coil
- tuning capacitance
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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
Abstract
The invention discloses a kind of automatic tuning apparatus based on ARM, including tuning circuit, tuning circuit includes rf signal line and ground wire, is connected in parallel to tuning capacitance C1, tuning capacitance C2, tuning capacitance C3, tuning capacitance C4, the tuning coil L of series connection is sequentially provided with rf signal line1, tuning coil L2, tuning coil L3, tuning capacitance C2It is connected in parallel to tuning capacitance C5；Tuning coil L1Also passing through can be by the tuning capacitance C of partial short-circuit6Connection ground wire；Tuning coil L3Cut-off connection ground wire；Tuning capacitance, tuning coil are connected by servo motor control, servo motor with ARM communication boards, and upper PC controls each servo motor to act by ARM communication boards.Invention solves the problems, such as the automatic tuning of high-power 500KW short-wave transmitters.The automatic calculating and adjustment of the tuning servomotor position carried out on the SCM system of low cost, help to reduce system cost, improve the automatic control level of high-power short-wave transmitter.
Description
Technical field
The present invention relates to emitter tuning field, more particularly to a kind of automatic tuning apparatus and method based on ARM.
Background technology
Automatic tunable technology refers to according to currently assigned working frequency during tuning, automatically by the high frequency of emitter
Loop element is adjusted to resonance location corresponding with the frequency.Tuning Control device currently used in the market is mostly by work
The polylith boards such as industry control computer, multifunctional data acquiring plate, Programmable logical controller plate are constituted, and there is volume greatly, cost
Height, stability is poor, difficult in maintenance to wait not enough.
High-power 500KW short-wave transmitters are short-wave large-power broadcast core equipment, frequency coverage be 3MHz extremely
26.1MHz, because band coverage is several frequencys multiplication, so proposing requirement very high to tuning matching system；Although can
With manual tuning, but workload is big and inconvenient.The requirement of automatic broadcast cannot be met, it is therefore necessary to design a kind of shortwave certainly
Dynamic tuning system.
As ARM embedded systems are in the development in Mobile portable field, its small volume, rich hardware resource, disposal ability
By force, therefore as the core processing unit of this product, abundant hardware device is connected and extended by system bus, while will be hard
Part integration of equipments realizes that system is effectively integrated on one piece of mainboard, improves stability, reduces cost, while can provide good
The function such as good human-computer interaction interface and Ethernet remote monitoring and data acquisition.
The content of the invention
Present invention aim to address the automatic tuning problem of power 500KW short-wave transmitters, there is provided one kind is mono- based on ARM
Piece machine system automatic tuning system and method.
For achieving the above object, the technical scheme is that：A kind of automatic tuning apparatus based on ARM, including
Tuning circuit, tuning circuit includes rf signal line and ground wire, and tuning is connected in parallel between rf signal line and ground wire
Electric capacity C1, tuning capacitance C2, tuning capacitance C3, tuning capacitance C4, the tuning coil L of series connection is sequentially provided with rf signal line1, adjust
Humorous inductance L2, tuning coil L3, respectively positioned at adjacent tuning capacitance C1With tuning capacitance C2, tuning capacitance C2With tuning capacitance
C3, tuning capacitance C3With tuning capacitance C4Between；
The tuning capacitance C1By switching S1Control break-make；The tuning capacitance C2It is connected in parallel to tuning capacitance C5；
The tuning coil L1Also passing through can be by the tuning capacitance C of partial short-circuit6Connection ground wire；The tuning coil L3
The connection ground wire that can be cut off；
Tuning capacitance C is additionally provided with the rf signal line7, tuning capacitance C7With TH electron tubes, tuning coil L4Parallel connection,
Power tube is additionally provided with rf signal line, power tube ground wire also connects between the rf signal line and ground wire
It is connected to tuning capacitance C8, tuning capacitance C9, tuning coil L5, tuning coil L6, tuning coil L6A pair of partial short-circuits are provided with to open
Close；
The tuning capacitance C1, tuning capacitance C3, tuning capacitance C4, tuning capacitance C6Pass through servo motor P respectively5, servo
Motor P9, servo motor P11, servo motor P13Control tuning, tuning capacitance C5With tuning capacitance C2By servo motor P7Control
Tuning, the tuning coil L1, tuning coil L2, tuning coil L3By servo motor P6, servo motor P8, servo motor P10
Control tuning；
The tuning capacitance C8, tuning capacitance C9, tuning coil L4Pass through servo motor P respectively3, servo motor P2, servo
Motor P4Control tuning, tuning capacitance C7With tuning coil L5By servo motor P1Control tuning；
The servo motor is connected with ARM communication boards, and ARM communication boards connect upper PC, and upper PC is logical by ARM
Letter plate controls each servo motor action.
Further, the tuning capacitance C6Can be by switching S1Partial short-circuit, the switch S1Connected by ARM communication boards
To upper PC.
Further, the tuning coil L3By switching S2Connection ground wire, the switch S2Connected by ARM communication boards
To upper PC.
The method of work of the automatic tuning apparatus based on ARM, automatic tuning process is divided into coarse tuning, rises to half-power, thin
Tuning and four parts of increased wattage, it is specific as follows：
1) control servo motor P2Tuning tuning capacitance C9, power output reached in desired value certain limit, is completed prime and is adjusted
It is humorous；
2) servo motor P is controlled after the completion of record coarse adjustment10With servo motor P11Value be respectively：D10 and D11；Record is worked as
Preceding values for tuning PH0 and tune load value R0；
3) control servo motor P10Value improve to：D10+40；Record current values for tuning PH1 and adjust load value R1；
4) control servo motor P11Value improve to：D11+40；Record current values for tuning PH2
With tune load value R2；
5) servo motor P is calculated10With servo motor P11The value of required change, is calculated as follows：
In formula (1), formula (2), DeltaP10、DeltaP11Servo motor P is represented respectively10, servo motor P11Need change
Difference；DeltaPHoe, DeltaRoe represent respectively emitter be tuned to Optimized Matching operating point when values for tuning, adjust load value needs
The difference of change；
6) servo motor P is set respectively10With servo motor P11Need the value of regulation：D10+DeltaP10And D11+
DeltaP11, emitter values for tuning PH3 and tune load value R3 after the completion of record regulation；If PHoe-PH3 and Roe-R3 differences
Absolute value is respectively less than 30, then fine tuning terminates, otherwise repeatedly 1) to 5), until meeting tuning target；
Step 4, increased wattage, according to the representative value of emitter, final stage screen pressure, final stage screen stream, power output, system exists
These three values are monitored during increased wattage, any measured value reaches representative value, then top out power, automatic tuning terminates.
The beneficial effects of the invention are as follows：
The present invention solves the problems, such as the automatic tuning of high-power 500KW short-wave transmitters.In the SCM system of low cost
On the automatic calculating and adjustment of tuning servomotor position that carry out, help to reduce system cost, improve high-power shortwave hair
Penetrate the automatic control level of machine.
Brief description of the drawings
Fig. 1 is circuit diagram of the invention.
Specific embodiment
The technical scheme in the embodiment of the present invention is clearly and completely described below in conjunction with accompanying drawing.
As shown in figure 1, a kind of automatic tuning apparatus based on ARM, including tuning circuit, tuning circuit includes radiofrequency signal
Line 1 and ground wire 2, are connected in parallel to tuning capacitance C between rf signal line 1 and ground wire 213rd, tuning capacitance C24th, electricity is tuned
Hold C35th, tuning capacitance C46, the tuning coil L of series connection is sequentially provided with rf signal line17th, tuning coil L28th, tuning coil
L39, respectively positioned at adjacent tuning capacitance C13 and tuning capacitance C24th, tuning capacitance C24 and tuning capacitance C35th, tuning capacitance C35
With tuning capacitance C4Between 6；
The tuning capacitance C13 by switching S110 control break-makes；The tuning capacitance C24 are connected in parallel to tuning capacitance
C511；
The tuning coil L17 also pass through tuning capacitance C612 connection ground wires 2, the tuning capacitance C612 can be by opening
Close S113 partial short-circuits；
The tuning coil L3The 9 connection ground wires 2 that can be cut off, the tuning coil L39 by switching S214 connect
Ground wire 2.
Tuning capacitance C is additionally provided with the rf signal line717, tuning capacitance C717 with TH electron tubes 19, tuning coil
L418 is in parallel, is additionally provided with power tube 21 on rf signal line 1, the ground wire of power tube 21, the rf signal line 1 with
Tuning capacitance C is also associated between ground wire 2822nd, tuning capacitance C920th, tuning coil L523rd, tuning coil L616, tuning electricity
Sense L6It is provided with a pair of partial short-circuit switch S1161；
The tuning capacitance C13rd, tuning capacitance C35th, tuning capacitance C46th, tuning capacitance C612 pass through servo motor respectively
P531st, servo motor P951st, servo motor P1161st, servo motor P13121 control tunings, tuning capacitance C511 and tuning capacitance C24
By servo motor P741 control tunings, the tuning coil L17th, tuning coil L28th, tuning coil L39 pass through servo motor
P671st, servo motor P881st, servo motor P1091 control tunings.
The tuning capacitance C717th, tuning capacitance C920th, tuning coil L418 pass through servo motor P respectively3, servo motor
P2, servo motor P4Control tuning, tuning capacitance C822 and tuning coil L523 pass through servo motor P1221 control tunings.
The servo motor is connected with ARM communication boards 15, and ARM communication boards 15 connect upper PC (not shown),
Upper PC controls each servo motor to act by ARM communication boards 15.
The method of work of the automatic tuning apparatus based on ARM, automatic tuning process is divided into coarse tuning, rises to half-power, thin
Tuning and four parts of increased wattage, it is specific as follows：
Step one, coarse tuning, by upper PC according to the frequency for being currently needed for broadcasting, calculates each tuning coil, tuning
The value of electric capacity, and need the mobile position of each servo motor, switch；Result of calculation is transferred to ARM communication boards 15 by upper PC,
ARM communication boards 15 drive each drive motor, and tuning coil and tuning capacitance to coarse position are adjusted respectively；
Step 2, rises to half-power, and upper PC rises to half-power according to demanded power output, control transmitter power；
Step 3, fine tuning：
1) servo motor P is controlled after the completion of record coarse adjustment1091 and servo motor P1161 value is respectively：D10 and D11；Note
Record current values for tuning PH0 and adjust load value R0；
2) control servo motor P1091 value improve to：D10+40；Record current values for tuning PH1 and adjust load value R1；
3) control servo motor P1161 value improve to：D11+40；Record current values for tuning PH2 and adjust load value R2；
4) servo motor P is calculated1091 and servo motor P11The value of change, is calculated as follows required for 61：
In formula (1), formula (2), DeltaP10、DeltaP11Servo motor P is represented respectively1091st, servo motor P1161 need to become
The difference of change；DeltaPHoe, DeltaRoe represent respectively emitter be tuned to Optimized Matching operating point when values for tuning, adjust load value
Need the difference of change；
5) servo motor P is set respectively1091 and servo motor P1161 values for needing regulation：D10+DeltaP10And D11+
DeltaP11, emitter values for tuning PH3 and tune load value R3 after the completion of record regulation；If PHoe-PH3 and Roe-R3 differences
Absolute value is respectively less than 30, then fine tuning terminates, otherwise repeatedly 1) to 5), until meeting tuning target；
Step 4, increased wattage, according to the representative value of emitter, final stage screen pressure, final stage screen stream, power output, system exists
These three values are monitored during increased wattage, any measured value reaches representative value, then top out power, unblock sound week, automatically
Tuning terminates.
Described embodiment is only a part of embodiment of the invention, rather than whole embodiments.Based on the present invention
In embodiment, the every other implementation that those of ordinary skill in the art are obtained under the premise of creative work is not made
Example, belongs to the scope of protection of the invention.
Claims (4)
1. a kind of automatic tuning apparatus based on ARM, it is characterised in that including tuning circuit, tuning circuit includes radiofrequency signal
Line and ground wire, are connected in parallel to tuning capacitance C between rf signal line and ground wire1, tuning capacitance C2, tuning capacitance C3, adjust
Humorous electric capacity C4, the tuning coil L of series connection is sequentially provided with rf signal line1, tuning coil L2, tuning coil L3, respectively positioned at phase
Adjacent tuning capacitance C1With tuning capacitance C2, tuning capacitance C2With tuning capacitance C3, tuning capacitance C3With tuning capacitance C4Between；
The tuning capacitance C1By switching S1Control break-make；The tuning capacitance C2It is connected in parallel to tuning capacitance C5；
The tuning coil L1Also passing through can be by the tuning capacitance C of partial short-circuit6Connection ground wire；The tuning coil L3Can quilt
The connection ground wire of cut-out；
Tuning capacitance C is additionally provided with the rf signal line7, tuning capacitance C7With TH electron tubes, tuning coil L4Parallel connection, radio frequency
Power tube is additionally provided with holding wire, power tube ground wire is also associated between the rf signal line and ground wire
Tuning capacitance C8, tuning capacitance C9, tuning coil L5, tuning coil L6, tuning coil L6It is provided with a pair of partial short-circuit switches；
The tuning capacitance C1, tuning capacitance C3, tuning capacitance C4, tuning capacitance C6Pass through servo motor P respectively5, servo motor
P9, servo motor P11, servo motor P13Control tuning, tuning capacitance C5With tuning capacitance C2By servo motor P7Control tuning,
The tuning coil L1, tuning coil L2, tuning coil L3By servo motor P6, servo motor P8, servo motor P10Control is adjusted
It is humorous；
The tuning capacitance C8, tuning capacitance C9, tuning coil L4Pass through servo motor P respectively3, servo motor P2, servo motor
P4Control tuning, tuning capacitance C7With tuning coil L5By servo motor P1Control tuning；
The servo motor is connected with ARM communication boards, and ARM communication boards connect upper PC, and upper PC passes through ARM communication boards
Each servo motor is controlled to act.
2. automatic tuning apparatus based on ARM according to claim 1, it is characterised in that the tuning capacitance C6Can pass through
Switch S1Partial short-circuit, the switch S1Upper PC is connected to by ARM communication boards.
3. according to any described automatic tuning apparatus based on ARM of claim 1 or 2, it is characterised in that the tuning coil
L3By switching S2Connection ground wire, the switch S2Upper PC is connected to by ARM communication boards.
4. the method for work of the automatic tuning apparatus of ARM is based on described in a kind of claim 1, it is characterised in that automatic tuned
Journey is divided into coarse tuning, rises to half-power, four parts of fine tuning and increased wattage, specific as follows：
Step one, coarse tuning, by upper PC according to the frequency for being currently needed for broadcasting, calculates each tuning coil, tuning capacitance
Value, and the position for needing the movement of each servo motor；Result of calculation is transferred to ARM communication boards by upper PC, and ARM communication boards drive
Each drive motor is moved, tuning coil and tuning capacitance to coarse position are adjusted respectively；
Step 2, rises to half-power, and upper PC rises to half-power according to demanded power output, control transmitter power；
Step 3, fine tuning：
1) control servo motor P2Tuning tuning capacitance C9, power output reached in desired value certain limit, completes prime tuning；
2) servo motor P is controlled after the completion of record coarse adjustment10With servo motor P11Value be respectively：D10 and D11；Record is current to be adjusted
Humorous value PH0 and tune load value R0；
3) control servo motor P10Value improve to：D10+40；Record current values for tuning PH1 and adjust load value R1；
4) control servo motor P11Value improve to：D11+40；Record current values for tuning PH2 and adjust load value R2；
5) servo motor P is calculated10With servo motor P11The value of required change, is calculated as follows：
In formula (1), formula (2), DeltaP10、DeltaP11Servo motor P is represented respectively10, servo motor P11Need the difference of change
Value；DeltaPHoe, DeltaRoe represent respectively emitter be tuned to Optimized Matching operating point when values for tuning, adjust load value need become
The difference of change；
6) servo motor P is set respectively10With servo motor P11Need the value of regulation：D10+DeltaP10And D11+DeltaP11, note
Emitter values for tuning PH3 and tune load value R3 after the completion of record regulation；If the absolute value of PHoe-PH3 and Roe-R3 differences is small
In 30, then fine tuning terminates, otherwise repeatedly 1) to 5), until meeting tuning target；
Step 4, increased wattage, according to the representative value of emitter, final stage screen pressure, final stage screen stream, power output, system is being raised
These three values are monitored in power process, any measured value reaches representative value, then top out power, automatic tuning terminates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611183624.7A CN106788491A (en) | 2016-12-20 | 2016-12-20 | A kind of automatic tuning apparatus and method based on ARM |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611183624.7A CN106788491A (en) | 2016-12-20 | 2016-12-20 | A kind of automatic tuning apparatus and method based on ARM |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106788491A true CN106788491A (en) | 2017-05-31 |
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ID=58895806
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611183624.7A Pending CN106788491A (en) | 2016-12-20 | 2016-12-20 | A kind of automatic tuning apparatus and method based on ARM |
Country Status (1)
| Country | Link |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0136363A1 (en) * | 1983-09-07 | 1985-04-10 | P + T Patent und Technologie AG | Self-adjusting applicator for intermittent high frequency pulses for short-wave apparatus used for medical-physical therapies |
| CN103163790A (en) * | 2011-12-15 | 2013-06-19 | 北京北广科技股份有限公司 | 500KW short-wave transmitter logic control method and system |
| CN205028059U (en) * | 2015-10-14 | 2016-02-10 | 国家新闻出版广电总局五六一台 | DF100A transmitter H bridge type motor drive controller |
-
2016
- 2016-12-20 CN CN201611183624.7A patent/CN106788491A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0136363A1 (en) * | 1983-09-07 | 1985-04-10 | P + T Patent und Technologie AG | Self-adjusting applicator for intermittent high frequency pulses for short-wave apparatus used for medical-physical therapies |
| CN103163790A (en) * | 2011-12-15 | 2013-06-19 | 北京北广科技股份有限公司 | 500KW short-wave transmitter logic control method and system |
| CN205028059U (en) * | 2015-10-14 | 2016-02-10 | 国家新闻出版广电总局五六一台 | DF100A transmitter H bridge type motor drive controller |
Non-Patent Citations (2)
| Title |
|---|
| 孔德意: "《DF100A型短波发射机自动调谐控制的工程实现》", 《中国优秀硕士学位论文全文数据库》 * |
| 罗天涯: "《国产500kW短波发射机的调谐控制系统》", 《科技传播》 * |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170531 |
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| RJ01 | Rejection of invention patent application after publication |