CN104168055A - Automatic satellite search and network access control device and method for closed-loop IP-star satellite mobile station - Google Patents
Automatic satellite search and network access control device and method for closed-loop IP-star satellite mobile station Download PDFInfo
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- CN104168055A CN104168055A CN201410433708.6A CN201410433708A CN104168055A CN 104168055 A CN104168055 A CN 104168055A CN 201410433708 A CN201410433708 A CN 201410433708A CN 104168055 A CN104168055 A CN 104168055A
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Abstract
The invention relates to an automatic satellite search and network access control device and method for a closed-loop IP-star satellite mobile station. According to the connection relation of all components of the device, a satellite antenna system is connected with a power amplifier and a downlink L wave band frequency converter; the downlink L wave band frequency converter is connected with a frequency selection module and a tracking receiver through a shunt; the tracking receiver and a user side are connected in an information two-way feedback mode; the frequency selection module is connected with the shunt, the user side and a modem; the modem is connected with the power amplifier, the frequency selection module and the user side; the power amplifier is connected with the user side and the satellite antenna system. The method includes the steps that a power supply of the satellite mobile station is turned on; positioning is achieved through a GPS chip; the tracking receiver determines the spot beam where the satellite mobile station is located; the user side receives, analyzes and processes information of the spot beam; a satellite antenna servo mechanism instructs a satellite antenna to automatically search for a satellite; the modem has access to a network according to the information; network access succeeds. The automatic satellite search and network access control device and method are low in running cost and high in practicability.
Description
Technical field
The present invention relates to the control device of a kind of closed loop IP-star satellite mobile radio station automatic star-seeking and networking, it is a kind of by antenna and servo-control system realize automatic star-seeking and networking control device via satellite, the invention still further relates to a kind of control method of using this equipment, belong to technical field of satellite communication.
Background technology
IP-star wideband satellite communication system adopts KA+KU multiplexing of transmission technology and the multiple use technology of covering of frequency, make the transponder cost of satellite far below conventional satellite cost, powerful competitive advantage in conventional satellite communication service not only, and broadband access cost almost can compare favourably with ground broadband network; Not only can provide internet broadband access, voice, data, video and multimedia in interior integrated service to domestic user, and as the extension of ground broadband network, supplementary and backup, IP-star satellite broadband communication system can solve the business need that ground network does not cover blind spot area effectively; And IP-star satellite not only has above advantage and also has link reliability high (its adopts the new technology such as dynamic power management and daynamic bandwidth managment on star, solve the KA rain large problem that declines of communicating by letter with KU band satellite), security of system is high, and (it adopts KA+KU gap of frequency monitoring interlinkage technology and frequency hopping, can effectively prevent the interference of illegal signal), terminal equipment cost is low (only to be needed 1 meter of following antenna of bore or can accomplish that antenna aperture is minimum at 0.4 meter, the BUC of 2 watts of left and right) advantage such as, application prospect is very wide.
IP-star satellite has 23 spot beam coverages in East China, a broadcast beam, west area has a shape beam to cover, the main communication resource is at 23 spot beams, for satellite fixed station, do not need trans-regional, can proper communication in a spot beam, but just need to trans-regionally in different spot beams, work for satellite mobile radio station, across spot beam, just need to re-establish link, if manually established the link, need for a long time, so just do not realize communication in moving, application is just limited by very large.
Summary of the invention
In order to solve the problem of above-mentioned existence, the invention discloses control device and the method for a kind of closed loop IP-star satellite mobile radio station automatic star-seeking and networking, this device is a kind of with low cost, control simple, just with operation, the automatic star-seeking at a kind of closed loop IP-star mobile-satellite application station that stability and precision are high and the control device of networking, its control method can realize automatic star-seeking and the automatic networking of satellite antenna, simplified manual operation, promote operating efficiency and stability, made the range of application of IP-star satellite obtain huge expansion.
The control device of closed loop IP-star satellite mobile radio station automatic star-seeking and networking, is characterized in that comprising satellite antenna system, descending L-band frequency converter, power amplifier, splitter, frequency selection module, modulator-demodulator, track receiver and user side,
Described track receiver is used for receiving the signal of user side and splitter, and transmits to user side,
Described splitter receives the signal of descending L-band frequency converter, and is transmitted to respectively frequency selection module and track receiver after this signal is processed,
Described descending L-band frequency converter is used for receiving the signal of satellite antenna system, and this signal is transmitted to splitter,
Described satellite antenna system is used for receiving the signal of power amplifier, and is transmitted to descending L-band frequency converter,
Described power amplifier is used for receiving user side signal, and transmits to modulator-demodulator and satellite antenna system,
Described modulator-demodulator receives user side, frequency is selected the signal of module and power amplifier, and transmits to user side,
Described user side receives and processes the signal of track receiver and modulator-demodulator, and selects module, modulator-demodulator, power amplifier and track receiver to transmit to frequency.
Described satellite antenna system comprises antenna and antenna servo mechanism, and described antenna is selected KA+KU dual-band antenna.
In described track receiver, be provided with GPS chip.
Described modulator-demodulator is selected IP-star satellite modem.
Described user side is selected the user side that automatic control networking software is installed, micro-process computer that user side is selected computer or is comprised of microprocessor.
The control method of using the control device of this closed loop IP-star satellite mobile radio station automatic star-seeking and networking, is characterized in that comprising the following steps:
Step 1: this closed loop IP-star satellite mobile radio station arrives optional position;
Step 2: the power supply of opening this closed loop IP-star satellite mobile radio station;
Step 3: track receiver operation positioning function;
Step 4: track receiver judges whether to locate successfully, as no-fix success, continues location, as locates successfully, enters step 5;
Step 5: track receiver, according to locating information, is determined the spot beam at this closed loop IP-star satellite mobile radio station place;
Step 6: track receiver sends user side to the spot beam information of step 5 gained, user side receives and this spot beam information of analyzing and processing;
Step 7: user side is made two instructions according to the spot beam information of step 6 gained, one is passed to satellite antenna system the information of this spot beam, satellite antenna system instruction satellite antenna automatic star-seeking; Its two, the information of this spot beam, give modulator-demodulator, modulator-demodulator connects and networks according to this information;
Step 8: satellite antenna system judges whether satellite antenna completes and seeks star, seeks star as unsuccessful, continues to seek star, as seek star success, user side is determined spot beam and the frequency range at this satellite place;
Step 9: user side is given modulator-demodulator the spot beam information of step 5 and step 8 gained, user side is revised the spot beam information in modulator-demodulator automatically, and modulator-demodulator connects networking;
Step 10: whether user side reads modulator-demodulator and network successfully, as unsuccessful networking, continues into net operation, as successfully networked, finishes.
In described step 3, by the GPS chip in track receiver, move positioning function; The information of the satellite antenna servomechanism acceptance point wave beam in antenna system via satellite in step 7, and instruction satellite antenna automatic star-seeking.
In described step 6, be arranged on the automatic control networking software analysis process points wave beam information in user side.
In described step 8, the satellite antenna servomechanism in satellite antenna system judges whether satellite antenna completes and seeks star; User side selects module and modulator-demodulator to receive the signal of satellite antenna system by descending L-band frequency converter, splitter, frequency, and confirms satellite loca wave beam and frequency range.
In described step 9, modulator-demodulator, according to user side instruction, receives the frequency range that descending L-band frequency converter and frequency are selected module, utilizes power amplifier emission function, enters net operation.
The present invention, by the connection of each parts, coherent realization with each component function, the position of track receiver position location satellite mobile radio station, according to the positional information of satellite mobile radio station, satellite antenna automatic star-seeking, the positional information of user side analyzing and processing satellite mobile radio station and seek star result, control modulator-demodulator and connect networking, complete whole control implementation.
The present invention, the material cost of device is not high, can meet more consumer groups, and the stability of parts is better, function-stable, long service life.This control method, completes coherently, is quick on the draw, and precision is high, and execution efficiency is high.
Accompanying drawing explanation
Fig. 1 is principle framework figure of the present invention,
Fig. 2 control method schematic flow sheet of the present invention.
Embodiment
Below in conjunction with the drawings and specific embodiments, further illustrate the present invention.Should understand following embodiment is only not used in and limits the scope of the invention for the present invention is described.
Fig. 1 is principle framework figure of the present invention, and as seen from the figure, the control device of closed loop IP-star satellite mobile radio station automatic star-seeking and networking, comprises satellite antenna system, descending L-band frequency converter, power amplifier, splitter, frequency is selected module, modulator-demodulator, track receiver and user side.Their annexation is: the signal input part of satellite antenna system connects the signal transmitting terminal of power amplifier, and the signal output part of satellite antenna system connects the signal receiving end of descending L-band frequency converter; Descending L-band frequency converter is distinguished rate of connections by splitter and is selected module and track receiver; Track receiver and user side be information bidirectional feedback link each other; Frequency selects the signal input part of module to connect splitter and user side, and signal output part connects modulator-demodulator; Modulator-demodulator receives and connects power amplifier, frequency selection module and user side, and output connects user side; Power amplifier receiving terminal connects user side, and transmitting terminal connects satellite antenna system.This device can be realized satellite antenna and in moving process, automatically seek star operation, to guarantee that satellite-signal keeps connecting in process in action.
In apparatus of the present invention, satellite antenna system comprises antenna and antenna servo mechanism, and antenna is selected KA+KU dual-band antenna.Antenna reception satellite-signal, antenna servo mechanism processes the satellite-signal that antenna reception arrives, and antenna servo mechanism can rotate by control antenna, reaches best signal accepting state, promotes the precision of antenna, guarantees the quality of satellite-signal.The applicability of KA+KU dual-band antenna is more wide, improves practicality of the present invention.
In track receiver, be provided with GPS chip.GPS chip has positioning function, can accurately locate to judge the geographical position of satellite mobile radio station, and antenna servo mechanism is according to the geographical position of satellite mobile radio station, adjust antenna towards, guarantee the precision of antenna.
Modulator-demodulator is selected IP-star satellite modem, and IP-star satellite modem is switching signal better, promotes accuracy of the present invention.
User side is selected the user side that automatic control networking software is installed, micro-process computer that user side is selected computer or is comprised of microprocessor.Computer function is powerful, and as user side, versatility is good, and still, cost is high, and quality is large, carries certain not convenient property.For function of the present invention, select the microprocessor with corresponding function, be assembled into micro-process computer, quality is little, does not waste computer resource, cost-saving.
Fig. 2 control method schematic flow sheet of the present invention, as seen from the figure, control method of the present invention, comprises the following steps:
Step 1: this closed loop IP-star satellite mobile radio station arrives optional position;
Step 2: the power supply of opening this closed loop IP-star satellite mobile radio station;
Step 3: the GPS chip operation positioning function in track receiver;
Step 4: track receiver judges whether GPS chip locates successfully, as no-fix success, continues location, as locates successfully, enters step 5;
Step 5: track receiver, according to the locating information of GPS chip, is determined the spot beam at this closed loop IP-star satellite mobile radio station place;
Step 6: track receiver sends user side to the spot beam information of step 5 gained, user side receives and this spot beam information of analyzing and processing;
Step 7: user side is made two instructions according to the spot beam information of step 6 gained, one is passed to satellite antenna servomechanism the information of this spot beam, satellite antenna servomechanism instruction satellite antenna automatic star-seeking; Its two, the information of this spot beam, give modulator-demodulator, modulator-demodulator connects and networks according to this information;
Step 8: satellite antenna servomechanism judges whether satellite antenna completes and seeks star, seeks star as unsuccessful, continues to seek star, as seek star success, user side is determined spot beam and the frequency range at this satellite place;
Step 9: user side is given modulator-demodulator the spot beam information of step 5 and step 8 gained, user side is revised the spot beam information in modulator-demodulator automatically, and modulator-demodulator connects networking;
Step 10: whether user side reads modulator-demodulator and network successfully, as unsuccessful networking, continues into net operation, as successfully networked, finishes.
In described step 6, be arranged on the automatic control networking software analysis process points wave beam information in user side.
In described step 8, user side selects module to confirm satellite loca wave beam and frequency range by splitter and frequency.
In described step 9, modulator-demodulator, according to user side instruction, receives the frequency range that descending L-band frequency converter and frequency are selected module, by power amplifier emission function, enters net operation.
This control method, carries out and links up, and the satellite of satellite mobile radio station position is determined in the accurately position of position location satellite mobile radio station, and fast search, through position analysis, processes, and connection networks.Accuracy is high, and execution efficiency is high.
The disclosed technological means of the present invention program is not limited only to the disclosed technological means of above-mentioned technological means, also comprises the technical scheme being comprised of above technical characterictic combination in any.
Claims (10)
1. the control device of closed loop IP-star satellite mobile radio station automatic star-seeking and networking, is characterized in that comprising satellite antenna system, descending L-band frequency converter, power amplifier, splitter, frequency selection module, modulator-demodulator, track receiver and user side,
Described track receiver is used for receiving the signal of user side and splitter, and transmits to user side,
Described splitter receives the signal of descending L-band frequency converter, and is transmitted to respectively frequency selection module and track receiver after this signal is processed,
Described descending L-band frequency converter is used for receiving the signal of satellite antenna system, and this signal is transmitted to splitter,
Described satellite antenna system is used for receiving the signal of power amplifier, and is transmitted to descending L-band frequency converter,
Described power amplifier is used for receiving user side signal, and transmits to modulator-demodulator and satellite antenna system,
Described modulator-demodulator receives user side, frequency is selected the signal of module and power amplifier, and transmits to user side,
Described user side receives and processes the signal of track receiver and modulator-demodulator, and selects module, modulator-demodulator, power amplifier and track receiver to transmit to frequency.
2. the control device of closed loop IP-star satellite mobile radio station automatic star-seeking according to claim 1 and networking, is characterized in that described satellite antenna system comprises antenna and antenna servo mechanism, and described antenna is selected KA+KU dual-band antenna.
3. the control device of closed loop IP-star satellite mobile radio station automatic star-seeking according to claim 1 and networking, is characterized in that being provided with in described track receiver GPS chip.
4. the control device of closed loop IP-star satellite mobile radio station automatic star-seeking according to claim 1 and networking, is characterized in that described modulator-demodulator selects IP-star satellite modem.
5. the control device of closed loop IP-star satellite mobile radio station automatic star-seeking according to claim 1 and networking, it is characterized in that described user side selects the user side that automatic control networking software is installed, micro-process computer that user side is selected computer or is comprised of microprocessor.
6. the control method of using the above closed loop IP-star satellite mobile radio station automatic star-seeking of arbitrary claim and the control device of networking, is characterized in that comprising the following steps:
Step 1: this closed loop IP-star satellite mobile radio station arrives optional position;
Step 2: the power supply of opening this closed loop IP-star satellite mobile radio station;
Step 3: track receiver operation positioning function;
Step 4: track receiver judges whether to locate successfully, as no-fix success, continues location, as locates successfully, enters step 5;
Step 5: track receiver, according to locating information, is determined the spot beam at this closed loop IP-star satellite mobile radio station place;
Step 6: track receiver sends user side to the spot beam information of step 5 gained, user side receives and this spot beam information of analyzing and processing;
Step 7: user side is made two instructions according to the spot beam information of step 6 gained, one is passed to satellite antenna system the information of this spot beam, satellite antenna system instruction satellite antenna automatic star-seeking; Its two, the information of this spot beam, give modulator-demodulator, modulator-demodulator connects and networks according to this information;
Step 8: satellite antenna system judges whether satellite antenna completes and seeks star, seeks star as unsuccessful, continues to seek star, as seek star success, user side is determined spot beam and the frequency range at this satellite place;
Step 9: user side is given modulator-demodulator the spot beam information of step 5 and step 8 gained, user side is revised the spot beam information in modulator-demodulator automatically, and modulator-demodulator connects networking;
Step 10: whether user side reads modulator-demodulator and network successfully, as unsuccessful networking, continues into net operation, as successfully networked, finishes.
7. the control method of closed loop IP-star satellite mobile radio station automatic star-seeking according to claim 6 and networking, is characterized in that in described step 3 by the GPS chip operation positioning function in track receiver; The information of the satellite antenna servomechanism acceptance point wave beam in antenna system via satellite in step 7, and instruction satellite antenna automatic star-seeking.
8. the control method of closed loop IP-star satellite mobile radio station automatic star-seeking according to claim 6 and networking, is characterized in that in described step 6, is arranged on the automatic control networking software analysis process points wave beam information in user side.
9. the control method of closed loop IP-star satellite mobile radio station automatic star-seeking according to claim 6 and networking, is characterized in that in described step 8, and the satellite antenna servomechanism in satellite antenna system judges whether satellite antenna completes and seeks star; User side selects module and modulator-demodulator to receive the signal of satellite antenna system by descending L-band frequency converter, splitter, frequency, and confirms satellite loca wave beam and frequency range.
10. the control method of closed loop IP-star satellite mobile radio station automatic star-seeking according to claim 6 and networking, it is characterized in that in described step 9, modulator-demodulator is according to user side instruction, receive descending L-band frequency converter and frequency and select the frequency range of module, utilize power amplifier emission function, enter net operation.
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| CN201410433708.6A CN104168055B (en) | 2014-08-29 | 2014-08-29 | Closed loop IP star satellite mobile stations automatic star-seekings and the control device and method to network |
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| CN201410433708.6A CN104168055B (en) | 2014-08-29 | 2014-08-29 | Closed loop IP star satellite mobile stations automatic star-seekings and the control device and method to network |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104506227A (en) * | 2014-11-28 | 2015-04-08 | 南京中网卫星通信股份有限公司 | Automatic satellite searching and network accessing device and method for IP-star satellite system |
| WO2018006614A1 (en) * | 2016-07-05 | 2018-01-11 | 中兴通讯股份有限公司 | Region management method and system for satellite communication |
| CN110794436A (en) * | 2019-10-28 | 2020-02-14 | 捷信（浙江）通信技术有限公司 | Ship positioning management system |
| CN113131192A (en) * | 2019-12-30 | 2021-07-16 | 鹤壁天海电子信息***有限公司 | Satellite antenna, satellite searching and tracking method thereof and computer readable storage medium |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0883252A2 (en) * | 1997-06-02 | 1998-12-09 | Hughes Electronics Corporation | Method and system for providing wideband communications to mobile users in a satellite-based network |
| CN1968048A (en) * | 2006-09-19 | 2007-05-23 | 北京爱科迪信息通讯技术有限公司 | Intelligent portable satellite communications earth station and its control method |
| CN101089764A (en) * | 2006-06-13 | 2007-12-19 | 中国科学院空间科学与应用研究中心 | Antenna automatic tracking inter-satellite control device and method |
| CN104079342A (en) * | 2014-07-18 | 2014-10-01 | 武汉信达易通科技有限公司 | Portable satellite communication terminal and method |
| CN204119233U (en) * | 2014-08-29 | 2015-01-21 | 南京中网卫星通信股份有限公司 | The automatic star-seeking of IP-star satellite mobile stations and enter net arrangement |
-
2014
- 2014-08-29 CN CN201410433708.6A patent/CN104168055B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0883252A2 (en) * | 1997-06-02 | 1998-12-09 | Hughes Electronics Corporation | Method and system for providing wideband communications to mobile users in a satellite-based network |
| CN101089764A (en) * | 2006-06-13 | 2007-12-19 | 中国科学院空间科学与应用研究中心 | Antenna automatic tracking inter-satellite control device and method |
| CN1968048A (en) * | 2006-09-19 | 2007-05-23 | 北京爱科迪信息通讯技术有限公司 | Intelligent portable satellite communications earth station and its control method |
| CN104079342A (en) * | 2014-07-18 | 2014-10-01 | 武汉信达易通科技有限公司 | Portable satellite communication terminal and method |
| CN204119233U (en) * | 2014-08-29 | 2015-01-21 | 南京中网卫星通信股份有限公司 | The automatic star-seeking of IP-star satellite mobile stations and enter net arrangement |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104506227A (en) * | 2014-11-28 | 2015-04-08 | 南京中网卫星通信股份有限公司 | Automatic satellite searching and network accessing device and method for IP-star satellite system |
| WO2018006614A1 (en) * | 2016-07-05 | 2018-01-11 | 中兴通讯股份有限公司 | Region management method and system for satellite communication |
| CN107580365A (en) * | 2016-07-05 | 2018-01-12 | 中兴通讯股份有限公司 | The area management method and system of satellite communication |
| CN107580365B (en) * | 2016-07-05 | 2020-11-20 | 中兴通讯股份有限公司 | Region management method and system for satellite communication |
| CN110794436A (en) * | 2019-10-28 | 2020-02-14 | 捷信（浙江）通信技术有限公司 | Ship positioning management system |
| CN113131192A (en) * | 2019-12-30 | 2021-07-16 | 鹤壁天海电子信息***有限公司 | Satellite antenna, satellite searching and tracking method thereof and computer readable storage medium |
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| CN104168055B (en) | 2017-12-01 |
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Effective date of registration: 20190411 Address after: 211135 Second Floor of Unit B, 300 Zhihui Road, Qilin Science and Technology Innovation Park, Jiangning District, Nanjing City, Jiangsu Province Patentee after: Nanjing control dimension Communication Technology Co., Ltd. Address before: 210061 No. 9 Gaoke 2 Road, Nanjing High-tech Development Zone, Jiangsu Province Patentee before: Nanjing China-Spacenet Telecom Co., Ltd. |
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Denomination of invention: Automatic satellite search and network access control device and method for closed-loop IP-star satellite mobile station Effective date of registration: 20200429 Granted publication date: 20171201 Pledgee: Jiangsu Credit Financing Guarantee Co., Ltd. Pledgor: NANJING COM-WAVE COMMUNICATION TECHNOLOGY Co.,Ltd. Registration number: Y2020980001941 |
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Date of cancellation: 20220309 Granted publication date: 20171201 Pledgee: Jiangsu Credit Financing Guarantee Co.,Ltd. Pledgor: NANJING KONGWEI COMMUNICATION TECHNOLOGY CO.,LTD. Registration number: Y2020980001941 |