CN105403899A - GPS and Beidou positioning switching system - Google Patents
GPS and Beidou positioning switching system Download PDFInfo
- Publication number
- CN105403899A CN105403899A CN201510979301.8A CN201510979301A CN105403899A CN 105403899 A CN105403899 A CN 105403899A CN 201510979301 A CN201510979301 A CN 201510979301A CN 105403899 A CN105403899 A CN 105403899A
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- China
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- gps
- locator data
- control module
- switching
- big dipper
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
- G01S19/01—Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
- G01S19/13—Receivers
- G01S19/33—Multimode operation in different systems which transmit time stamped messages, e.g. GPS/GLONASS
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- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Position Fixing By Use Of Radio Waves (AREA)
Abstract
The invention discloses a GPS and Beidou positioning switching system. The GPS and Beidou positioning switching system comprises a GPS receiving machine, a Beidou receiving machine, a switching control module, a port switching module and a power supply module. The GPS receiving machine, the Beidou receiving machine and the port switching module are connected to the switching control module via an RS232C port. The GPS receiving machine receives satellite signals from a GPS antenna, carries out resolving and positioning so as to obtain GPS positioning data, and outputs the GPS positioning data to the switching control module via the RS232C port. The Beidou receiving machine receives satellite signals from a Beidou antenna, carries out resolving and positioning so as to obtain Beidou positioning data, and outputs the Beidou positioning data to the switching control module via the RS232C port. The switching control module receives mode control instructions and switching control instructions input by the exterior. The mode control instructions comprise a manual control instruction and an automatic control instruction. The switching control instructions comprise a GPS switching instruction and a Beidou switching instruction. The switching system is capable of selectively outputting GPS or Beidou positioning data as required.
Description
Technical field
The invention belongs to ship location technical field, be specifically related to a kind of GPS and Big Dipper location switched system.
Background technology
GPS (GlobalPositioningSystem) GPS is current most widely used navigation positioning system in the world, and its positioning precision is high, utilizes differential technique, and positioning error can be controlled in meter level scope; Wide coverage, all can observe at least 4 satellites in the whole world; Technology maturation, development and production go out the various receivers of satisfied different demand.
On China naval vessel, major part is all equipped with GPS to locate in real time naval vessel.But gps satellite and ground monitoring station are all controlled by the U.S., if it injects jamming exposure area to satellite, by making the location on naval vessel no longer accurate, have a strong impact on the command & control on naval vessel.In order to make the location navigation on China naval vessel not pin down by the U.S., China independent development goes out " Beidou II " that can match in excellence or beauty with GPS, and its Point-positioning Precision can reach 10 meters, and along with the Application and Development of differential technique, positioning precision will be higher.China naval vessel is installed Beidou receiver to be obviously inevitable trend.But mounted GPS can not all exit at short notice on China naval vessel, and big-dipper satellite only covers the Asian-Pacific area, to oceangoing voyage, also depend on GPS location.Within a very long time, GPS location and Big Dipper location will coexist.Therefore, just need to develop set of device, GPS and Beidou receiver can be located for ship navigation, and selectably can export the data of GPS or Big Dipper location.
Summary of the invention
In view of this, the invention provides a kind of GPS and Big Dipper location switched system, GPS and Beidou receiver can be adopted simultaneously to be ship navigation location, and selectably can export the data of GPS or Big Dipper location.
In order to achieve the above object, technical scheme of the present invention is: a kind of GPS and Big Dipper location switched system, comprise GPS, Beidou receiver, switching control module, interface modular converter and power module.
Wherein GPS, Beidou receiver and interface modular converter are all connected to switching control module by RS232C interface;
GPS receives the satellite-signal from gps antenna, carries out resolving location, obtains GPS locator data, exports GPS locator data to switching control module by RS232C interface.
Beidou receiver receives the satellite-signal from Beidou antenna, carries out resolving location, obtains Big Dipper locator data, exports Big Dipper locator data to switching control module by RS232C interface.
Switch control module receive the Schema control instruction of outside input and switch steering order.
Schema control instruction comprises Non-follow control and automatically controls two kinds of instructions.
Switch steering order comprise switching GPS and switch the Big Dipper two kinds of instructions.
If Schema control instruction is Non-follow control, then judge switch steering order, if switch GPS, then switch control module GPS locator data is sent to receive modular converter carry out conversion output; If the switching Big Dipper, then switch control module Big Dipper locator data is sent to receive modular converter carry out conversion output.
If Schema control instruction is automatically control, then switches control module and GPS locator data and Big Dipper locator data are resolved respectively, extract and be positioned with validity, differential state and effective star number information.
First judge the validity of GPS locator data and Big Dipper locator data, if one of them is effective, effective locator data is sent to reception modular converter and carries out conversion output; If both invalid, then export any road locator data.
If both effective, then judge the differential state of locator data, if one of them is difference, selects the locator data of this difference to be sent to reception modular converter and carry out conversion output; If the two is difference or non-difference all, then the effective star number information both judging, selects the many locator datas of effective star number to be sent to reception modular converter and carries out conversion output.
Power module is GPS, Beidou receiver, switching control module, interface modular converter provide stabilized power source.
Beneficial effect:
Location provided by the present invention switched system, GPS and Beidou receiver can be adopted to be ship navigation location simultaneously, and selectably can export the data of GPS or Big Dipper location, when selecting, namely manual mode can be adopted, can automatic mode be adopted again, in automatic mode, can automatically select effectively, locator data that precision is higher exports.
Accompanying drawing explanation
Fig. 1 is switched system composition frame chart;
Fig. 2 is for switching control module process flow diagram.
Embodiment
To develop simultaneously embodiment below in conjunction with accompanying drawing, describe the present invention.
GPS provided by the present invention and Big Dipper location switched system, comprise GPS, Beidou receiver, switching control module, interface modular converter and power module, realize GPS and the Big Dipper on naval vessel to locate simultaneously, and selectably export GPS or Big Dipper locator data.
GPS and Beidou receiver normally work in the energized state, export the locator data of RS232C interface and be sent to switching control module, switch control module according to the state of GPS/ Big Dipper change-over switch on device panel, select to export GPS or Big Dipper locator data, locator data is converted to RS422A interface or network interface data by interface modular converter, outputs to other equipment by the air plug of rear panel.
The another kind of implementation of the present invention is, GPS and Beidou receiver export the locator data of RS232C interface to switching control module, switch selection signal that control module provides according to other equipment outside and export GPS or Big Dipper locator data, locator data is converted to the data of RS422A interface or network interface by interface modular converter.The selection signal that other equipment outside provide is input to switching control module by the air plug of rear panel.
GPS receives the satellite-signal from gps antenna, carries out resolving location, locator data is exported by RS232C interface.GPS working power is supplied by power module.
Beidou receiver receives the satellite-signal from Beidou antenna, carries out resolving location, locator data is exported by RS232C interface.Beidou receiver working power is supplied by power module.
Switch control module input interface and comprise GPS locator data, Big Dipper locator data, Schema control and switching control, output interface is a road locator data.
Switching control module can manual switchover or automatic switchover by the mode control signal of input.After energising, switch control module and first carry out initialization, GPS locator data and Big Dipper locator data is received respectively by two-way RS232 interface, read the state of " Schema control " signal, " if Non-follow control ", then judge the state of " switch and control " again, for " GPS " then exports GPS locator data, for " Big Dipper " then exports Big Dipper locator data by RS232 interface.
If " Schema control " is auto state, then switches control module and GPS and Big Dipper locator data are resolved, extract and be positioned with validity, differential state and effective star number information.
According to the information extracted, first judge the validity of GPS and Big Dipper locator data.If GPS effectively, export GPS locator data, if the Big Dipper effectively, export Big Dipper locator data.If both invalid, then export any road locator data.
If both effective, then precision comparatively Gao mono-tunnel in both exporting, and due to the impact of differential pair data precision larger than the impact of star number, the present embodiment center line judges that differential state judges effective star number again.
Namely judge the differential state (have the data precision of difference high) of locator data, regioselective state is that the data of difference export.If GPS and Big Dipper locator data be difference or not difference all, then judge the effective number of satellite when prelocalization, select the locator data that number of satellite is many to export (the locator data precision that effective number of satellite is many is high).Switch control module power supply to be supplied by power module.
Interface modular converter receives the locator data of RS232C, by interface conversion circuit, locator data is converted to a road RS422A or road network network output.According to use needs, also locator data can be converted to multichannel RS422A interface and export, or be converted to RS422A and network output simultaneously.Interface modular converter power supply is supplied by power module.
The alternating current of power module input AC220V, exports the direct current of+24V and+5V, for other modules.
To sum up, these are only preferred embodiment of the present invention, be not intended to limit protection scope of the present invention.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (1)
1. GPS and a Big Dipper location switched system, is characterized in that, comprise GPS, Beidou receiver, switching control module, interface modular converter and power module;
Wherein GPS, Beidou receiver and interface modular converter are all connected to switching control module by RS232C interface;
Described GPS receives the satellite-signal from gps antenna, carries out resolving location, obtains GPS locator data, exports described GPS locator data to switching control module by RS232C interface;
Described Beidou receiver receives the satellite-signal from Beidou antenna, carries out resolving location, obtains Big Dipper locator data, exports described Big Dipper locator data to switching control module by RS232C interface;
Described switching control module receives the Schema control instruction of outside input and switches steering order;
Described Schema control instruction comprises Non-follow control and automatically controls two kinds of instructions;
Described switching steering order comprises switching GPS and switches the Big Dipper two kinds of instructions;
If Schema control instruction is Non-follow control, then judge switch steering order, if switch GPS, then switch control module described GPS locator data is sent to receive modular converter carry out conversion output; If the switching Big Dipper, then switch control module described Big Dipper locator data is sent to receive modular converter carry out conversion output;
If Schema control instruction is automatically control, then switches control module and described GPS locator data and Big Dipper locator data are resolved respectively, extract and be positioned with validity, differential state and effective star number information;
First judge the validity of GPS locator data and Big Dipper locator data, if one of them is effective, effective locator data is sent to reception modular converter and carries out conversion output; If both invalid, then export any road locator data;
If both effective, then judge the differential state of locator data, if one of them is difference, selects the locator data of this difference to be sent to reception modular converter and carry out conversion output; If the two is difference or non-difference all, then the effective star number information both judging, selects the many locator datas of effective star number to be sent to reception modular converter and carries out conversion output;
Described power module is GPS, Beidou receiver, switching control module, interface modular converter provide stabilized power source.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510979301.8A CN105403899A (en) | 2015-12-23 | 2015-12-23 | GPS and Beidou positioning switching system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510979301.8A CN105403899A (en) | 2015-12-23 | 2015-12-23 | GPS and Beidou positioning switching system |
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| CN105403899A true CN105403899A (en) | 2016-03-16 |
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| CN201510979301.8A Pending CN105403899A (en) | 2015-12-23 | 2015-12-23 | GPS and Beidou positioning switching system |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106646574A (en) * | 2017-02-16 | 2017-05-10 | 南京大学 | Indoor and outdoor ubiquitous positioning method and indoor and outdoor ubiquitous positioning system |
| CN106772519A (en) * | 2016-11-23 | 2017-05-31 | 山东聚盛联创信息科技有限公司 | Big Dipper GPS location inquiry system |
| CN110095795A (en) * | 2019-04-23 | 2019-08-06 | 青岛海信移动通信技术股份有限公司 | A kind of localization method of mobile terminal and free switching difference positioning system |
| CN110658538A (en) * | 2019-09-25 | 2020-01-07 | 深圳市云慧联科技有限公司 | Geographic coordinate positioning and time service device and method |
| CN111158030A (en) * | 2020-01-17 | 2020-05-15 | 珠海格力电器股份有限公司 | Satellite positioning method and device |
| CN112448791A (en) * | 2020-10-30 | 2021-03-05 | 安徽江淮汽车集团股份有限公司 | Method, device, storage medium and device for transmitting positioning data |
| CN112600533A (en) * | 2020-12-09 | 2021-04-02 | 中国科学院新疆天文台 | Filter bank for radio astronomical observation |
| CN113075705A (en) * | 2020-04-23 | 2021-07-06 | 中移(上海)信息通信科技有限公司 | Positioning software development kit, positioning method and chip |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106772519A (en) * | 2016-11-23 | 2017-05-31 | 山东聚盛联创信息科技有限公司 | Big Dipper GPS location inquiry system |
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| CN111158030A (en) * | 2020-01-17 | 2020-05-15 | 珠海格力电器股份有限公司 | Satellite positioning method and device |
| CN113075705A (en) * | 2020-04-23 | 2021-07-06 | 中移(上海)信息通信科技有限公司 | Positioning software development kit, positioning method and chip |
| CN112448791A (en) * | 2020-10-30 | 2021-03-05 | 安徽江淮汽车集团股份有限公司 | Method, device, storage medium and device for transmitting positioning data |
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| CN112600533A (en) * | 2020-12-09 | 2021-04-02 | 中国科学院新疆天文台 | Filter bank for radio astronomical observation |
| CN112600533B (en) * | 2020-12-09 | 2023-10-13 | 中国科学院新疆天文台 | Filter bank for radio astronomical observation |
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Application publication date: 20160316 |