CN101552619B - Middle-frequency switching method and device in satellite communication system - Google Patents
Middle-frequency switching method and device in satellite communication system Download PDFInfo
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- CN101552619B CN101552619B CN2009100263044A CN200910026304A CN101552619B CN 101552619 B CN101552619 B CN 101552619B CN 2009100263044 A CN2009100263044 A CN 2009100263044A CN 200910026304 A CN200910026304 A CN 200910026304A CN 101552619 B CN101552619 B CN 101552619B
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- 238000004891 communication Methods 0.000 title claims abstract description 13
- 238000012544 monitoring process Methods 0.000 claims abstract description 25
- 230000011664 signaling Effects 0.000 claims abstract description 13
- 238000006243 chemical reaction Methods 0.000 claims description 38
- 230000002093 peripheral effect Effects 0.000 claims description 7
- 238000013519 translation Methods 0.000 claims description 3
- 230000009466 transformation Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
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Abstract
The invention discloses a middle-frequency switching method in a satellite communication system. A monitoring channel unit communicates with a middle-frequency switching unit through an SPI mode; the monitoring channel unit sends out a control signaling through an SPI port; and the signaling becomes the control signal of the middle-frequency switching unit through a data converting circuit. The middle-frequency switching unit is a circuit controlling the control apparatus of a relay set; the data converting circuit comprises a series/parallel signal converting circuit and a voltage changing circuit; and the control signaling becomes the control signal of the relay set first through the series/parallel signal converting circuit and then through the voltage changing circuit so as to control the relay set.
Description
Technical field
The invention belongs to the technical scheme of a kind of Equipment Control in the satellite communication system, especially the intermediate frequency switching method and apparatus in the satellite communication system.
Background technology
Along with continuous progress in science and technology, satellite repeater is more and more, the 140MHz intermediate frequency has no idea to cover all transponders of a satellite, for guaranteeing the equipment operate as normal, must intermediate-freuqncy signal be switched to suitable frequency converter unit according to the satellite repeater resource situation, thereby on corresponding transponder, use.
Summary of the invention
The objective of the invention is to propose a kind of method and apparatus that the 140MHz intermediate-freuqncy signal is switched to different frequency converter units in satellite communication system, realization equipment is normal the use in net.
Technical solution of the present invention is: the intermediate frequency changing method in a kind of satellite communication system, and communicate by letter by the SPI mode with the intermediate frequency switch unit in the monitoring and controlling channels unit; The monitoring and controlling channels unit will be controlled signaling by the SPI mouth and send, and this signaling becomes the control signal of intermediate frequency switch unit by the data conversion circuit.
Described intermediate frequency switch unit is the circuit with the control device of control relay group; Described data conversion circuit comprises serial/parallel conversion of signals and voltage conversion circuit; Described control signaling again by becoming the control signal of relay group behind the voltage conversion circuit, is controlled described relay group earlier by serial/parallel conversion of signals.
Realize the intermediate frequency switching device shifter of said method, comprise monitoring and controlling channels unit and intermediate frequency switch unit, described monitoring and controlling channels unit is provided with the SPI interface; Be provided with the data conversion circuit between monitoring and controlling channels unit and the intermediate frequency switch unit, the output of the SPI interface of described monitoring and controlling channels unit connects the input of data translation circuit; The output of data conversion circuit connects the control end of control device circuit of the relay group of intermediate frequency switch unit, and connects the output of described voltage conversion circuit; Described data conversion circuit comprises serial/parallel change-over circuit and voltage conversion circuit; The output of serial/parallel change-over circuit connects the input of voltage conversion circuit.
Described intermediate frequency switch unit is to be the circuit of core with the relay group, and the control end of relay group connects the output of described voltage conversion circuit.
Described relay group comprises splitter and mixer.
The invention has the beneficial effects as follows: existing intermediate frequency handoff technique, mainly, realizes by each intermediate frequency transfer relay by being set, the signal of so controlling intermediate frequency just has a lot, take too much signal resource, cabling also can be a lot, control is got up pretty troublesome, compared with prior art, intermediate frequency of the present invention switches employing Serial Peripheral Interface SPI (Serial Peripheral Interface, Serial Peripheral Interface, SPI is a kind of synchronous serial communication mode that motorola inc releases, and is a kind of three-way synchronous bus, because of its hardware capability very strong, the software relevant with SPI is just quite simple, makes CPU have more time to handle other affairs) mode, promptly by the SPI mouth (data of monitor-interface plate, enable, clock) is connected with the intermediate frequency switch boards, connection between them only needs 3 lines, the signal resource that takies is considerably less, control also very simple, by data conversion, corresponding data are converted to the control level of relay, thereby finish the intermediate frequency handoff functionality.
Description of drawings
Fig. 1 is the inventive method intermediate frequency switching principle schematic diagram
Fig. 2 is a change-over circuit sketch of the present invention
Fig. 3 is a relay unit circuit sketch of the present invention
Wherein, serial/parallel switching device adopts MC14094 to realize, voltage conversion circuit adopts MC1413 to realize, the relay group adopts RK1-12V to realize.
Embodiment
The invention will be further described below in conjunction with accompanying drawing and embodiment.
Intermediate frequency changing method in a kind of satellite communication system, communicate by letter by the SPI mode with the intermediate frequency switch unit in the monitoring and controlling channels unit; The monitoring and controlling channels unit will be controlled signaling by the SPI mouth and send, and this signaling becomes the control signal of intermediate frequency switch unit by data conversion.
Described intermediate frequency switch unit is to be the circuit of core devices with the relay group; Described data conversion comprises serial/parallel conversion of signals and voltage transformation; Described control signaling again by becoming the control signal of relay group behind the voltage transformation, is controlled described relay group earlier by serial/parallel conversion of signals.
A kind of intermediate frequency switching device shifter of realizing said method comprises monitoring and controlling channels unit and intermediate frequency switch unit, and described monitoring and controlling channels unit is provided with the SPI interface; Be provided with the data conversion circuit between monitoring and controlling channels unit and the intermediate frequency switch unit, the output of described SPI interface connects the output of data translation circuit; The output of data conversion circuit connects the control end of intermediate frequency switch unit.
Described data conversion circuit comprises serial/parallel change-over circuit and voltage conversion circuit; The output of serial/parallel change-over circuit connects the input of voltage conversion circuit.
Described intermediate frequency switch unit is to be the circuit of core with the relay group, and the control end of relay group connects the output of described voltage conversion circuit.Described relay group comprises splitter and mixer.
With reference to figure 1 and Fig. 2 and Fig. 3, in this example, intermediate frequency switches mainly to be made up of following several parts:
A) monitoring and controlling channels SPI mouth;
B) deserializer;
C) voltage transformation module;
D) controllable relays group.
Consider and need low-converter (or the frequency converter of higher frequency on corresponding a plurality of L frequency ranges when on a plurality of transponders, working, below be example explanation just with low-converter on the L frequency range), we set low-converter corresponding parameters on the L frequency range in advance, corresponding corresponding transponder.
Working method and flow process:
A) electrifying startup
Carry out startup self-detection after each device power, be written into the last the setting, the 140MHz intermediate-freuqncy signal switches to low-converter on the corresponding L frequency range according to monitoring and controlling channels unit (program default value).
B) parameter setting
After the device power-up, according to the situation of current use transponder, to the setting of starting shooting of low-converter on the L frequency range, then to the monitoring unit setting of starting shooting.
C) service communication
Be provided with after the end, the monitoring and controlling channels unit begins to receive broadcast channel, receives the network control center various command.Receive when monitoring unit after the channel allocation of network control center, judge which transponder scope channel number belongs to, low-converter on the L frequency range of which correspondence of needs use, then the 140MHz intermediate-freuqncy signal is switched to low-converter on the corresponding L frequency range, thereby send to corresponding transponder, the communicating by letter of other channels in finishing and netting.
By the left end input and output of relay group, the signal that switched has contained splitter and mixer by the right-hand member input and output of relay group in its repeat circuit group to 140MHz intermediate frequency initialize signal respectively among Fig. 1.The monitoring and controlling channels unit will be controlled signaling by the SPI mouth and send, and through string and conversion, and by voltage transformation, become the signal of control relay group.
Claims (3)
1. the intermediate frequency changing method in the satellite communication system is characterized in that the monitoring and controlling channels unit communicates by letter by the Serial Peripheral Interface mode with the intermediate frequency switch unit; The monitoring and controlling channels unit will be controlled signaling by Serial Peripheral Interface and send, and this signaling becomes the control signal of intermediate frequency switch unit by the data conversion circuit; Described intermediate frequency switch unit is to be the circuit of control device with the control relay group; Described data conversion circuit comprises serial/parallel conversion of signals and voltage conversion circuit; Described control signaling again by becoming the control signal of relay group behind the voltage conversion circuit, is controlled described relay group earlier by serial/parallel conversion of signals.
2. the intermediate frequency switching device shifter in the satellite communication system comprises monitoring and controlling channels unit and intermediate frequency switch unit, it is characterized in that described monitoring and controlling channels unit is provided with Serial Peripheral Interface; Be provided with the data conversion circuit between monitoring and controlling channels unit and the intermediate frequency switch unit, the output of the Serial Peripheral Interface of described monitoring and controlling channels unit connects the input of data translation circuit; The output of data conversion circuit connects the control end of control device circuit of the relay group of intermediate frequency switch unit, and connects the output of described voltage conversion circuit; Described data conversion circuit comprises serial/parallel change-over circuit and voltage conversion circuit; The output of serial/parallel change-over circuit connects the input of voltage conversion circuit.
3. the intermediate frequency switching device shifter in the satellite communication system according to claim 2 is characterized in that described relay group comprises splitter and mixer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100263044A CN101552619B (en) | 2009-04-20 | 2009-04-20 | Middle-frequency switching method and device in satellite communication system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100263044A CN101552619B (en) | 2009-04-20 | 2009-04-20 | Middle-frequency switching method and device in satellite communication system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101552619A CN101552619A (en) | 2009-10-07 |
| CN101552619B true CN101552619B (en) | 2011-12-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2009100263044A Withdrawn - After Issue CN101552619B (en) | 2009-04-20 | 2009-04-20 | Middle-frequency switching method and device in satellite communication system |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2569458Y (en) * | 2002-04-16 | 2003-08-27 | 北京数码视讯科技有限公司 | Satellite signal transmission stream receiving repeater |
| CN2904504Y (en) * | 2006-04-04 | 2007-05-23 | 百一电子股份有限公司 | Satellite signal receiver of multiplex output and input |
-
2009
- 2009-04-20 CN CN2009100263044A patent/CN101552619B/en not_active Withdrawn - After Issue
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2569458Y (en) * | 2002-04-16 | 2003-08-27 | 北京数码视讯科技有限公司 | Satellite signal transmission stream receiving repeater |
| CN2904504Y (en) * | 2006-04-04 | 2007-05-23 | 百一电子股份有限公司 | Satellite signal receiver of multiplex output and input |
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| Publication number | Publication date |
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| CN101552619A (en) | 2009-10-07 |
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Inventor after: Wang Xi Inventor after: Dong Jinchun Inventor before: Wang Xi |
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Owner name: NANJING XIONGMAO ELECTRONICS CO., LTD. Free format text: FORMER OWNER: PANDA ELECTRONICS GROUP CO., LTD. Effective date: 20120313 Owner name: NANJING PANDA INFORMATION INDUSTRY CO., LTD. PANDA Free format text: FORMER OWNER: NANJING XIONGMAO ELECTRONICS CO., LTD. NANJING PANDA HANDA TECHNOLOGY CO., LTD. Effective date: 20120313 |
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Effective date of registration: 20120313 Address after: 210002 Zhongshan East Road, Jiangsu, China, No. 301, No. Co-patentee after: NANJING PANDA INFORMATION INDUSTRY Co.,Ltd. Patentee after: NANJING PANDA ELECTRONICS Co.,Ltd. Co-patentee after: PANDA ELECTRONICS GROUP Co.,Ltd. Co-patentee after: NANJING PANDA HANDA TECHNOLOGY Co.,Ltd. Address before: 210002 No. 301 East Zhongshan Road, Xuanwu District, Jiangsu, Nanjing Co-patentee before: NANJING PANDA ELECTRONICS Co.,Ltd. Patentee before: PANDA ELECTRONICS GROUP Co.,Ltd. Co-patentee before: NANJING PANDA HANDA TECHNOLOGY Co.,Ltd. |
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Address after: 210002 No. 301 East Zhongshan Road, Jiangsu, Nanjing Patentee after: NANJING PANDA ELECTRONICS Co.,Ltd. Country or region after: China Patentee after: NANJING PANDA INFORMATION INDUSTRY Co.,Ltd. Patentee after: PANDA ELECTRONICS GROUP Co.,Ltd. Patentee after: CEC Defense Technology Co.,Ltd. Address before: 210002 No. 301 East Zhongshan Road, Jiangsu, Nanjing Patentee before: NANJING PANDA ELECTRONICS Co.,Ltd. Country or region before: China Patentee before: NANJING PANDA INFORMATION INDUSTRY Co.,Ltd. Patentee before: PANDA ELECTRONICS GROUP Co.,Ltd. Patentee before: NANJING PANDA HANDA TECHNOLOGY Co.,Ltd. |
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