CN202153739U - River-way steamship safety real-time monitoring system based on VSTA satellite communication - Google Patents
River-way steamship safety real-time monitoring system based on VSTA satellite communication Download PDFInfo
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- CN202153739U CN202153739U CN 201120252607 CN201120252607U CN202153739U CN 202153739 U CN202153739 U CN 202153739U CN 201120252607 CN201120252607 CN 201120252607 CN 201120252607 U CN201120252607 U CN 201120252607U CN 202153739 U CN202153739 U CN 202153739U
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Abstract
The present utility model discloses a river-way steamship safety real-time monitoring system based on a VSTA satellite communication. The system is characterized in that a subsystem of the VSAT satellite communication is composed of a main station (control center), a satellite and N (N is1, 2 to K) VSAT terminals (displacement monitoring points). The diameter of an antenna used in the main station (control center) is 9m or 13m, and the main station (control center) is provided with a high power amplifier, a low noise amplifier, an upper/down frequency converter, a modulator-demodulator and data interface equipment. The main station is connected with a main computer through a satellite line, each VSAT terminal is composed of a small-bore antenna, an outdoor unit and an indoor unit, and the outdoor unit is connected with the indoor unit through a coaxial cable. The system is high in measuring precision and low in cost, and the equipment power supply problem is solved by utilizing solar energy power supply equipment. The VSAT satellite communication technology is utilized to transmit data, the transmission is free of the influences of time and place, and the system is convenient for popularizing and applying in a large scale.
Description
Technical field
The utility model belongs to technical field of satellite communication, relates to a kind of river course steamer fail safe real-time monitoring system based on the VSAT satellite communication.
Background technology
China only considers following aspect to the safety of steamer: steamer accident escape lifesaving; The passenger safety inspection; Steamer set sail and pull in to shore, parts inspections such as the wheel of the drainage system of steamer, steamer and engine blade.Do not have monitoring and management before special technology is carried out steamer hull or shipboard generation fracture." river course steamer fail safe " in the native system is meant " steamer hull and shipboard safety monitoring systems ".
The native system certainty of measurement is high, and cost is low, utilizes solar power supply unit to solve the power devices problem; Utilize the VSAT communication technology of satellite, carry out the transmission of data, do not receive any time and the influence in place, be convenient to extensive popularization and application.
The utility model content
The goal of the invention of the utility model is: to the problem of above-mentioned existence; A kind of river course steamer fail safe real-time monitoring system based on the VSAT satellite communication is provided, it is characterized in that the subsystem of VSAT satellite communication is that control centre, satellite and 1 to k VSAT terminal are that displacement monitoring point three parts are formed by a main website; Said main website is that the antenna diameter that control centre uses is 9m or 13m, and be furnished with high power amplifier, low noise amplifier, on/low-converter, modulator-demodulator and data interface unit; This main website circuit via satellite is connected with master computer; Said VSAT is made up of small aperture antenna, outdoor unit and indoor unit at the terminal, and indoor and outdoor connects with coaxial cable between Unit two.The entire system block diagram is as shown in Figure 1.VSAT satellite communication subsystem theory diagram is as shown in Figure 2.
In sum, owing to adopted technique scheme, the beneficial effect of the utility model is:
The native system certainty of measurement is high, and cost is low, utilizes solar power supply unit to solve the power devices problem; Utilize the VSAT communication technology of satellite, carry out the transmission of data, do not receive any time and the influence in place, be convenient to extensive popularization and application.
Description of drawings
Fig. 1 is based on the river course steamer fail safe real-time monitoring system theory diagram of VSAT satellite communication;
Fig. 2 VSAT satellite communication subsystem theory diagram.
Embodiment
Below in conjunction with accompanying drawing, the utility model is done detailed explanation.
For the purpose, technical scheme and the advantage that make the utility model is clearer,, the utility model is further elaborated below in conjunction with accompanying drawing and embodiment.Should be appreciated that specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.
Like Fig. 1, shown in 2,
The VSAT satellite system:
VSAT satellite communication subsystem is made up of a main website (control centre), satellite and 1 to k VSAT terminal (displacement monitoring point), three parts, and VSAT satellite communication subsystem theory diagram is as shown in Figure 3.
VSAT satellite communication subsystem work principle:
1. signal flow
Signal sends: the network switching equipment is sent into router with the business information (comprising data, voice and image) that inserts through the IP access controller; Router is sent digital signal into modulator-demodulator; After the Base-Band Processing of modulator-demodulator and modulation treatment, convert intermediate-freuqncy signal into, send into antenna subsystem through Radio Frequency Subsystem and send out to satellite.
Signal receives: transmit signal through what antenna subsystem received by satellite, after Radio Frequency Subsystem is handled along separate routes, send into each modulator-demodulator respectively.After modulator-demodulator demodulation, Base-Band Processing, convert data-signal into and send into router, send into the IP access controller through router, send into the network switching equipment then.
2. communication service flow process
The VSAT satellite system that adopts in the utility model can provide telephone communication, business such as fax transmitting-receiving, transfer of data and image transmission for the user.
Phone call/facsimile is professional: through voice gateways, convert the IP data to, insert satellite network, network connects via satellite, realizes phone call/facsimile traffic transmission between control centre and the displacement monitoring point.
Data service: the data that monitor directly insert ICBM SHF satellite terminal, and the Network Transmission passage is realized the transmission of data service between control centre and the displacement monitoring point via satellite.
Graphic service: audio-video signal switches through audiovideo switcher to be selected; The incoming image codec; Through image codec to the video/audio signal that is inserted quantize, processing such as compression, coding, send into service transmission channels to send out to satellite, realize the transmission of graphic service between control centre and the displacement monitoring point; Can observe on-the-spot what happens, for control centre provides effective commander's foundation.
Main website (monitoring center):
Main website (monitoring center), it is the heart of VSAT satellite communication subsystem.Main website uses more large-scale antenna, and its antenna diameter is generally 9m (Ku wave band) or 13m (C-band), and be furnished with high power amplifier (HPA), low noise amplifier (LNA), on/low-converter, modulator-demodulator and data interface unit etc.Main website puts together with computer usually or is connected with master computer through other (ground or satellite) circuit.
For the whole network is monitored, manages, is controlled and safeguards, in main website, be provided with a network control software, the whole network operation conditions is monitored and managed; Like real-time monitoring, diagnose the working condition of each small station and main website itself; The test channel quality is responsible for channel allocation, statistics etc.The operator can use keyboard to operate at control desk, through screen display and printout result.
Small station (VSAT terminal):
The VSAT small station is made up of small aperture antenna, outdoor unit and indoor unit.The VSAT antenna has just to be presented and two kinds of forms of offset-fed, and the Prime Focus Antenna size is bigger, and the offset-fed antenna size is little, performance good (efficient high, secondary lobe little), and is difficult for accumulated snow on the structure, therefore adopts offset-feed type VSAT antenna.Outdoor unit mainly comprise GaAsFET solid state power amplifier, low noise FET amplifier, on/low-converter and corresponding observation circuit etc.Whole unit can be contained in the little metal box, directly hangs over the antenna reflector back side.Indoor unit mainly comprises modulator-demodulator, coder and data interface unit etc.Indoor and outdoor connects with coaxial cable between Unit two.Transmit intermediate-freuqncy signal and power supply.Complete equipment compact conformation, cheap, all solid stateization, easy for installation, environmental requirement is low, can directly link to each other with the displacement sensing subsystem, does not need the terrestrial repetition circuit.
The above is merely the preferred embodiment of the utility model; Not in order to restriction the utility model; Any modification of being done within all spirit and principles at the utility model, be equal to replacement and improvement etc., all should be included within the protection range of the utility model.
Claims (1)
1. based on the river course steamer fail safe real-time monitoring system of VSAT satellite communication, it is characterized in that the subsystem of VSAT satellite communication is that control centre, satellite and 1 to k VSAT terminal are that displacement monitoring point three parts are formed by a main website; Said main website is that the antenna diameter that control centre uses is 9m or 13m, and be furnished with high power amplifier, low noise amplifier, on/low-converter, modulator-demodulator and data interface unit; This main website circuit via satellite is connected with master computer; Said VSAT is made up of small aperture antenna, outdoor unit and indoor unit at the terminal, and indoor and outdoor connects with coaxial cable between Unit two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120252607 CN202153739U (en) | 2011-07-18 | 2011-07-18 | River-way steamship safety real-time monitoring system based on VSTA satellite communication |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120252607 CN202153739U (en) | 2011-07-18 | 2011-07-18 | River-way steamship safety real-time monitoring system based on VSTA satellite communication |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202153739U true CN202153739U (en) | 2012-02-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120252607 Expired - Fee Related CN202153739U (en) | 2011-07-18 | 2011-07-18 | River-way steamship safety real-time monitoring system based on VSTA satellite communication |
Country Status (1)
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| CN (1) | CN202153739U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102819935A (en) * | 2012-09-07 | 2012-12-12 | 成都林海电子有限责任公司 | Wide area flood disaster satellite forecasting system |
| CN103198224A (en) * | 2013-04-15 | 2013-07-10 | 成都林海电子有限责任公司 | Satellite-communication-based remote medical system |
| CN106170078A (en) * | 2016-08-24 | 2016-11-30 | 杭州华雁数码电子有限公司 | A kind of satellite long-distance intelligent broadcast system and operational approach |
-
2011
- 2011-07-18 CN CN 201120252607 patent/CN202153739U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102819935A (en) * | 2012-09-07 | 2012-12-12 | 成都林海电子有限责任公司 | Wide area flood disaster satellite forecasting system |
| CN102819935B (en) * | 2012-09-07 | 2014-05-14 | 成都林海电子有限责任公司 | Wide area flood disaster satellite forecasting system |
| CN103198224A (en) * | 2013-04-15 | 2013-07-10 | 成都林海电子有限责任公司 | Satellite-communication-based remote medical system |
| CN106170078A (en) * | 2016-08-24 | 2016-11-30 | 杭州华雁数码电子有限公司 | A kind of satellite long-distance intelligent broadcast system and operational approach |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20160113 Granted publication date: 20120229 |
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| RINS | Preservation of patent right or utility model and its discharge | ||
| PD01 | Discharge of preservation of patent |
Date of cancellation: 20160713 Granted publication date: 20120229 |
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| RINS | Preservation of patent right or utility model and its discharge | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120229 Termination date: 20150718 |
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| EXPY | Termination of patent right or utility model |