CN103513259A - Dual-mode positioning and timing system - Google Patents
Dual-mode positioning and timing system Download PDFInfo
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- CN103513259A CN103513259A CN201310428644.6A CN201310428644A CN103513259A CN 103513259 A CN103513259 A CN 103513259A CN 201310428644 A CN201310428644 A CN 201310428644A CN 103513259 A CN103513259 A CN 103513259A
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- signal
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- gps
- bimodulus
- location
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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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- 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
- G01S19/38—Determining a navigation solution using signals transmitted by a satellite radio beacon positioning system
- G01S19/39—Determining a navigation solution using signals transmitted by a satellite radio beacon positioning system the satellite radio beacon positioning system transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
- G01S19/42—Determining position
- G01S19/421—Determining position by combining or switching between position solutions or signals derived from different satellite radio beacon positioning systems; by combining or switching between position solutions or signals derived from different modes of operation in a single system
- G01S19/425—Determining position by combining or switching between position solutions or signals derived from different satellite radio beacon positioning systems; by combining or switching between position solutions or signals derived from different modes of operation in a single system by combining or switching between signals derived from different satellite radio beacon positioning systems
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- G—PHYSICS
- G04—HOROLOGY
- G04R—RADIO-CONTROLLED TIME-PIECES
- G04R20/00—Setting the time according to the time information carried or implied by the radio signal
- G04R20/02—Setting the time according to the time information carried or implied by the radio signal the radio signal being sent by a satellite, e.g. GPS
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- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Computer Networks & Wireless Communication (AREA)
- Position Fixing By Use Of Radio Waves (AREA)
Abstract
The invention provides a dual-mode positioning and timing system. The dual-mode positioning and timing system comprises a dual-mode navigation antenna, a dual-navigation unit, an MCU and a TTF display screen, wherein the dual-mode navigation antenna receives Beidou satellite signals or/and GPS satellite signals and transmits the Beidou satellite signals or/and the GPS satellite signals to the dual-navigation unit, the dual-navigation unit processes the Beidou satellite signals or/and the GPS satellite signals to achieve immediate positioning, timing and navigation, and the MCU receives signals outputted by the dual-navigation unit and controls the TTF display screen to display a navigation map, a route, time and positioning information in real time. The dual-mode positioning and timing system has the advantages that the Beidou satellite can be combined with the GPS to conduct accurate navigation, timing and positioning.
Description
Technical field
The present invention relates to satellite application field, particularly a kind of bimodulus location time dissemination system.
Background technology
Navigational system used is all the gps system based on the U.S. at present, uses and needs to hand over quite expensive patent fee.GPS full name GPS is that the current whole world is most widely used also ripe satellite navigation and location system.In daily life, GPS has become the navigational system that a lot of people are too busy to get away, if there is no GPS, these megapolis such as Ru Beijing, Shanghai, Guangzhou, it is all a problem that a lot of people drive to can not find road, yet the satellite system of the GPSShi U.S., and GPS is after all inseparable with the relation of US military.National assets ，You Ministry of National Defence that gps system is still U.S. government is in charge of.If the U.S. is for number one Dui Qi other country restriction gps signal intensity and precision, or thoroughly close the right of GPS service, bring great threat will to the industrial securities such as information, civil aviaton, shipping, railway, finance, postal service of other countries, and at military aspect, the information processing that some are relevant with modernization military equipment, if depend on gps system unduly, once gps system cannot be used, will militarily be absorbed in greatly situation passive and vulnerable to attack.So China is in order to break away from the control of GPS network, the triones navigation system of development China oneself energetically under country's support with all strength, perfect along with Beidou satellite system, Beidou satellite navigation system is used widely in fields such as military affairs, communications and transportation, sea fishery, hydrologic monitoring, meteorological observation, provide disasters relief and reduce natural disasters.Yet, also big-dipper satellite and gps system are not carried out to integrated navigation at present now.
Summary of the invention
The technical problem to be solved in the present invention is, for the above-mentioned defect of big-dipper satellite and gps system not being carried out to integrated navigation of prior art, provides a kind of bimodulus location time dissemination system that big-dipper satellite and gps system are carried out to integrated navigation.
The technical solution adopted for the present invention to solve the technical problems is: construct a kind of bimodulus location time dissemination system, comprise bimodulus navigation antenna, two navigation elements, MCU and TTF display screen; Described bimodulus navigation antenna receives Big Dipper satellite signal or/and gps satellite signal send it to two navigation elements, described pair of navigation elements realizes instant location, time service and navigation to described Big Dipper satellite signal or/and gps satellite signal is processed, and described MCU receives the signal of two navigation elements outputs and controls the real-time show navigator map of described TTF display screen, path, time and locating information.
In the time dissemination system of bimodulus of the present invention location, by the control of described MCU, automatically select the Big Dipper and GPS integrated positioning and time service, Big Dipper location and time service or GPS location and time service mode separately separately.
In the time dissemination system of bimodulus of the present invention location, described pair of navigation elements comprises low noise amplifier, frequency converter, bandpass filter, radio frequency demoder and digital signal processor, the Big Dipper satellite signal that described low noise amplifier receives described bimodulus navigation antenna is or/and gps satellite signal amplifies and amplifying signal is sent to described frequency converter, described amplifying signal is carried out to frequency conversion obtains Big Dipper carrier signal with described frequency converter or/and gps carrier signal be sent to described bandpass filter, described bandpass filter by Big Dipper carrier signal or/and send to described radio frequency demoder after the target signal filter outside gps carrier signal frequency, described radio frequency demoder to described Big Dipper carrier signal or/and gps carrier signal amplify successively, filtering, A/D is converted to digital medium-frequency signal or baseband signal, described digital signal processor receives digital medium-frequency signal or the baseband signal of described radio frequency demoder transmission and it is carried out to demodulation successively, coding, decoding, calculation process realizes instant location, time service and navigation.
In the time dissemination system of bimodulus of the present invention location, also comprise with described MCU be connected, for realizing the CMMB module of mobile digital TV function.
In the time dissemination system of bimodulus of the present invention location, also comprise with described MCU be connected, the wireless communication module for carrying out communication or the call forwarding of system is answered to mobile phone with mobile phone.
In the time dissemination system of bimodulus of the present invention location, described wireless communication module comprises bluetooth communication module or wifi communication module.
In the time dissemination system of bimodulus of the present invention location, also comprise the audio entertainment system being connected with described MCU.
In the time dissemination system of bimodulus of the present invention location, also comprise with described MCU is connected, for vehicle body being stablized to the back-up video control module of control when the reversing.
In the time dissemination system of bimodulus of the present invention location, described back-up video control module comprises for taking the backup camera of back-up video image.
In the time dissemination system of bimodulus of the present invention location, the frequency of described Big Dipper carrier signal is 1561.098MHz, and the frequency of described gps carrier signal is 1574.92 MHz-1575.92 MHz.
Implement bimodulus of the present invention location time dissemination system, there is following beneficial effect: owing to using bimodulus navigation antenna, two navigation elements, MCU and TTF display screen; Bimodulus navigation antenna receives Big Dipper satellite signal or/and gps satellite signal send it to two navigation elements, two navigation elements realize instant location, time service and navigation to described Big Dipper satellite signal or/and gps satellite signal is processed, MCU receives the signal of two navigation elements outputs and also controls the real-time show navigator map of TTF display screen, path, time and locating information, thus its big-dipper satellite and gps system can be carried out to integrated navigation, time service is located more accurate.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the structural representation in embodiment of bimodulus location time dissemination system of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, rather than whole embodiment.Embodiment based in the present invention, those of ordinary skills, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
In bimodulus of the present invention location time dissemination system embodiment, the structural representation of its bimodulus location time dissemination system as shown in Figure 1.In Fig. 1, this bimodulus location time dissemination system comprises bimodulus navigation antenna 1, two navigation elements 2, MCU3 and TTF display screen 4; Bimodulus navigation antenna 1 receives Big Dipper satellite signal or/and gps satellite signal send it to two navigation elements 2,2 pairs of Big Dipper satellite signals of two navigation elements are realized instant location, time service and navigation or/and gps satellite signal is processed, and MCU3 receives the signal of two navigation elements 2 outputs and controls the real-time show navigator map of TTF display screen 4, path, time and locating information.It is worth mentioning that, in the present embodiment, by the control of MCU3, can automatically select the Big Dipper and GPS integrated positioning and time service, Big Dipper location and time service or GPS location and time service mode separately separately.Namely in the present embodiment, having three kinds of work locator meamss, is respectively location and the time service separately of the Big Dipper and GPS integrated positioning and time service mode, the Big Dipper, GPS locates separately and time service mode.In the present embodiment, the preferred Big Dipper and GPS integrated positioning and time service mode.During practical application, can select in advance according to specific needs wherein a kind of work locator meams, so its locator meams is more flexible.
In the present embodiment, two navigation elements 2 comprise low noise amplifier 21, frequency converter 22, bandpass filter 23, radio frequency demoder 24 and digital signal processor 25; Bimodulus navigation antenna 1 receives the signal of the sky Big Dipper and gps satellite transmitting, by the Big Dipper satellite signal receiving or/and gps satellite signal is transferred to low noise amplifier 21.The Big Dipper satellite signal that 21 pairs of bimodulus navigation antennas of low noise amplifier 1 receive is or/and gps satellite signal amplifies and amplifying signal is sent to frequency converter 22, 22 pairs of amplifying signals of frequency converter carry out that frequency conversion obtains Big Dipper carrier signal or/and gps carrier signal, and by Big Dipper carrier signal or/and gps carrier signal is sent to bandpass filter 23, bandpass filter 23 by Big Dipper carrier signal or/and send to radio frequency demoder 24 after the target signal filter outside gps carrier signal frequency, namely bandpass filter 23 allow Big Dipper carrier signal or/and gps carrier signal pass through, and the signal of other frequencies of filtering frequency converter 22 outputs.In the present embodiment, the frequency of Big Dipper carrier signal is 1561.098MHz, and the frequency of gps carrier signal is 1574.92 MHz-1575.92 MHz.
24 pairs of Big Dipper carrier signals of radio frequency demoder or/and gps carrier signal amplify successively, filtering, A/D is converted to digital medium-frequency signal or baseband signal, it is worth mentioning that, due to the Big Dipper and GPS integrated positioning and time service mode, the Big Dipper is location and time service separately, GPS locates separately and time service has respectively working frequency range separately, 24 pairs of Big Dipper carrier signals of radio frequency demoder are or/and gps carrier signal carries out filtering after amplifying, object is that further filtering clutter is to obtain the signal of required frequency range, through A/D, conversion is converted into digital signal and obtains digital medium-frequency signal or baseband signal afterwards.The digital medium-frequency signal that digital signal processor 25 received RF demoders 24 transmit or baseband signal are also carried out successively demodulation, coding, decoding, calculation process to it and are realized instant location, time service and navigation.Digital signal processor 25 sends to MCU3 by the signal of output, and MCU3 controls TTF display screen 4 real-time show navigator maps, path, time and locating information.
In the present embodiment, this bimodulus location time dissemination system also comprises CMMB module 6; CMMB module 6 is connected with MCU3, for realizing mobile digital TV function, so just can watch many cover TV programme and broadcast programs.
In the present embodiment, this bimodulus location time dissemination system also comprises wireless communication module 8, and wireless communication module 8 is connected with MCU3, for carrying out communication with mobile phone or the call forwarding of system being answered to mobile phone.Namely, when system has incoming call, available handsets receives, and has increased like this convenience.This wireless communication module 8 comprises bluetooth communication module or wifi communication module, and namely wireless communication module 8 can be bluetooth communication module, can be also wifi communication module.
In the present embodiment, this bimodulus location time dissemination system also comprises and rings entertainment systems 5, ringing entertainment systems 5 is connected with MCU3, ring entertainment systems 5 and comprise that sound equipment CPU(is not shown), digital signal processor 25 is sent to sound equipment CPU by the signal of output by MCU3, and sound equipment CPU says the word by signal by voice broadcast out.
In the present embodiment, this bimodulus location time dissemination system also comprises back-up video control module 7, and back-up video control module 7 is connected with MCU3, for vehicle body being stablized when moveing backward to control.Back-up video control module 7 comprises backup camera (not shown), and backup camera is used for taking back-up video image, and back-up video image is sent to TTF display screen 4 in real time by MCU3 shows in real time.Because vehicle body parts belongs to nonlinear and time-varying system, the cumulative errors of generation cause very big impact to control system.Therefore need to carry out real-time analysis and require system to make quick response related data, thereby vehicle can steadily be moveed backward with extremely low speed.In the present embodiment, by vehicle-state is carried out to Real-Time Monitoring, and the information such as the real-time speed obtaining, real-time obstacle distance and real-time damping force are classified, and information is carried out to analyzing and processing, thereby by back-up video control module 7, controlling vehicle relevant device responds fast, with this, realize vehicle low speed and steadily move backward, and vehicle and driver's safety is guaranteed in self-actuating brake in the safe range apart from barrier.
In a word, in the present embodiment, because triones navigation system can round-the-clockly be located fast in real time, communication blind zone rarely, its precision and GPS are suitable, the present invention adopts the mode of the Big Dipper and GPS compatibility to be equivalent to strengthen Asian-Pacific area satellite-signal coverage, and the Big Dipper satellite signal of the Asian-Pacific area can surpass gps signal intensity, Big Dipper navigation provides free service to the whole world, when the services such as navigation and time service, there is no number of users restriction, and can be compatible complementary with GPS, solved independent use GPSShi signal blind zone, adopt two navigation positioning systems to make navigator fix speed faster, more accurate.The following application at civil area of Big Dipper navigation will progressively move to maturity.Although within nearer a period of time in future, terminal device will be also primarily to support gps system, can only take all-embracing pattern for dipper system.At present triones navigation system is progressively moving to maturity completely, and the level with indexs such as the precision of present dipper system, degree of stability, adds support and the implementation of national policy and industrial chain, and triones navigation system will emerge at civil area fast.The development trend in triones navigation system future will be with GPS navigation and deposit, and reaches compatible complementary, move towards to internationalize.
The foregoing is only preferred embodiment of the present invention, in order to limit the present invention, within the spirit and principles in the present invention not all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (10)
1. a bimodulus location time dissemination system, is characterized in that, comprises bimodulus navigation antenna, two navigation elements, MCU and TTF display screen; Described bimodulus navigation antenna receives Big Dipper satellite signal or/and gps satellite signal send it to two navigation elements, described pair of navigation elements realizes instant location, time service and navigation to described Big Dipper satellite signal or/and gps satellite signal is processed, and described MCU receives the signal of two navigation elements outputs and controls the real-time show navigator map of described TTF display screen, path, time and locating information.
2. bimodulus according to claim 1 location time dissemination system, is characterized in that, by the control of described MCU, automatically selects the Big Dipper and GPS integrated positioning and time service, Big Dipper location and time service or GPS location and time service mode separately separately.
3. bimodulus according to claim 1 and 2 location time dissemination system, is characterized in that, described pair of navigation elements comprises low noise amplifier, frequency converter, bandpass filter, radio frequency demoder and digital signal processor, the Big Dipper satellite signal that described low noise amplifier receives described bimodulus navigation antenna is or/and gps satellite signal amplifies and amplifying signal is sent to described frequency converter, described amplifying signal is carried out to frequency conversion obtains Big Dipper carrier signal with described frequency converter or/and gps carrier signal be sent to described bandpass filter, described bandpass filter by Big Dipper carrier signal or/and send to described radio frequency demoder after the target signal filter outside gps carrier signal frequency, described radio frequency demoder to described Big Dipper carrier signal or/and gps carrier signal amplify successively, filtering, A/D is converted to digital medium-frequency signal or baseband signal, described digital signal processor receives digital medium-frequency signal or the baseband signal of described radio frequency demoder transmission and it is carried out to demodulation successively, coding, decoding, calculation process realizes instant location, time service and navigation.
4. bimodulus according to claim 3 location time dissemination system, is characterized in that, also comprise with described MCU be connected, for realizing the CMMB module of mobile digital TV function.
5. bimodulus according to claim 4 location time dissemination system, is characterized in that, also comprise with described MCU be connected, the wireless communication module for carrying out communication or the call forwarding of system is answered to mobile phone with mobile phone.
6. bimodulus according to claim 5 location time dissemination system, is characterized in that, described wireless communication module comprises bluetooth communication module or wifi communication module.
7. bimodulus according to claim 6 location time dissemination system, is characterized in that, also comprises the audio entertainment system being connected with described MCU.
8. bimodulus according to claim 7 location time dissemination system, is characterized in that, also comprise with described MCU is connected, for vehicle body being stablized to the back-up video control module of control when the reversing.
9. bimodulus according to claim 8 location time dissemination system, is characterized in that, described back-up video control module comprises for taking the backup camera of back-up video image.
10. bimodulus according to claim 3 location time dissemination system, is characterized in that, the frequency of described Big Dipper carrier signal is 1561.098MHz, and the frequency of described gps carrier signal is 1574.92 MHz-1575.92 MHz.
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| CN103995461A (en) * | 2014-05-14 | 2014-08-20 | 王辉 | Bluetooth radio wave zero calibration and timing system and method |
| CN104375413A (en) * | 2014-11-06 | 2015-02-25 | 西安交通大学 | Time synchronization system and method based on GPS/BD dual-mode time service |
| CN105929681A (en) * | 2016-06-30 | 2016-09-07 | 广州润芯信息技术有限公司 | SOS automatic time service smart watch based on first generation of Beidou satellite navigation system |
| CN106125111A (en) * | 2016-06-08 | 2016-11-16 | 广东欧珀移动通信有限公司 | The GPS GNSS system of mobile terminal and mobile terminal |
| CN109085615A (en) * | 2018-08-01 | 2018-12-25 | 桂林电子科技大学 | A kind of BPC big dipper multi-mode time service method and system |
| CN109633702A (en) * | 2018-12-27 | 2019-04-16 | 北京邮电大学 | A kind of satellite signal receiving processing system and processing method |
| CN113640838A (en) * | 2021-08-19 | 2021-11-12 | 中国电力科学研究院有限公司 | Multi-system combined satellite navigation positioning time service device and method |
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| CN103995461A (en) * | 2014-05-14 | 2014-08-20 | 王辉 | Bluetooth radio wave zero calibration and timing system and method |
| WO2015172531A1 (en) * | 2014-05-14 | 2015-11-19 | 王辉 | Bluetooth and radio wave zero calibration and time service system and method |
| CN103995461B (en) * | 2014-05-14 | 2016-03-30 | 王辉 | Blue teeth wireless electric wave school zero, time dissemination system and method |
| CN104375413A (en) * | 2014-11-06 | 2015-02-25 | 西安交通大学 | Time synchronization system and method based on GPS/BD dual-mode time service |
| CN104375413B (en) * | 2014-11-06 | 2017-01-11 | 西安交通大学 | Time synchronization system and method based on GPS/BD dual-mode time service |
| CN106125111A (en) * | 2016-06-08 | 2016-11-16 | 广东欧珀移动通信有限公司 | The GPS GNSS system of mobile terminal and mobile terminal |
| CN106125111B (en) * | 2016-06-08 | 2018-03-23 | 广东欧珀移动通信有限公司 | The GPS GNSS system and mobile terminal of mobile terminal |
| CN105929681A (en) * | 2016-06-30 | 2016-09-07 | 广州润芯信息技术有限公司 | SOS automatic time service smart watch based on first generation of Beidou satellite navigation system |
| CN109085615A (en) * | 2018-08-01 | 2018-12-25 | 桂林电子科技大学 | A kind of BPC big dipper multi-mode time service method and system |
| CN109633702A (en) * | 2018-12-27 | 2019-04-16 | 北京邮电大学 | A kind of satellite signal receiving processing system and processing method |
| CN109633702B (en) * | 2018-12-27 | 2020-11-03 | 北京邮电大学 | Satellite signal receiving and processing system and processing method |
| CN113640838A (en) * | 2021-08-19 | 2021-11-12 | 中国电力科学研究院有限公司 | Multi-system combined satellite navigation positioning time service device and method |
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Application publication date: 20140115 |