CN105005061A - Positioning method and system based on satellite base stations - Google Patents
Positioning method and system based on satellite base stations Download PDFInfo
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- CN105005061A CN105005061A CN201410158870.1A CN201410158870A CN105005061A CN 105005061 A CN105005061 A CN 105005061A CN 201410158870 A CN201410158870 A CN 201410158870A CN 105005061 A CN105005061 A CN 105005061A
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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
- G01S5/00—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations
- G01S5/02—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations using radio waves
- G01S5/10—Position of receiver fixed by co-ordinating a plurality of position lines defined by path-difference measurements, e.g. omega or decca systems
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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
- G01S5/00—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations
- G01S5/02—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations using radio waves
- G01S5/0273—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations using radio waves using multipath or indirect path propagation signals in position determination
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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
- G01S5/00—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations
- G01S5/02—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations using radio waves
- G01S5/14—Determining absolute distances from a plurality of spaced points of known location
- G01S5/145—Using a supplementary range measurement, e.g. based on pseudo-range measurements
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- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Position Fixing By Use Of Radio Waves (AREA)
Abstract
The invention discloses a positioning method and system based on satellite base stations, for solving the technical problems of long receiver calculation time, large energy consumption and positioning incapability at places with weak satellite signals when a conventional satellite positioning system carries out positioning. The method comprises the following steps: establishing the multiple satellite base stations covering a target area; a receiver obtaining positioning signals sent by the satellite base stations, wherein the positioning signals carry position information of the satellite base stations; according to the positioning signals, calculating the distances between the receiver and the satellite base stations; and according to the position information of at least two base stations and the distances from the at least two satellite base stations, calculating the position of the receiver.
Description
Technical field
The present invention relates to communication and field of locating technology, be specifically related to a kind of localization method based on satellite base station and system.
Background technology
Existing global position system, comprise GPS (Global Positioning System, and Chinese Beidou satellite navigation system (BeiDou Navigation Satellite System GPS), BDS), its principle of work is as follows: receiver receiving satellite signal, then calculate the positional information of satellite, utilize four or above satellite position information to calculate the location coordinate information of receiver.The equipment of user side has cellphone GPS or vehicle mounted guidance GPS etc., these can be considered as GPS, receiver can through catching satellite, tracking satellite and resolving three, position process when resolving positional information, consuming time longer, and energy consumption is larger, in the place that some satellite-signals are weak, the poor effect of location, sometimes even location cannot be completed.
Summary of the invention
The embodiment of the present invention provides a kind of localization method based on satellite base station and system, with solve existing global position system position time, receiver is long for computing time, and energy consumption is large, cannot complete the technical matters of location in the place that satellite-signal is weak.
First aspect present invention provides a kind of localization method based on satellite base station, comprising:
Set up multiple satellite base stations in coverage goal region; Receiver obtains the positioning signal that satellite base station sends, and described positioning signal carries the positional information of satellite base station; The distance of receiver and satellite base station is calculated according to described positioning signal; According to the positional information of at least two base stations and the distance apart from described at least two satellite base stations, calculate the position of receiver.
Second aspect present invention provides a kind of positioning system based on satellite base station, comprising: multiple satellite base stations in receiver and coverage goal region;
Described satellite base station is for sending positioning signal;
Described receiver, comprising: acquisition module, and for obtaining the positioning signal that satellite base station sends, described positioning signal carries the positional information of satellite base station; Distance calculation module, for calculating the distance of receiver and satellite base station according to described positioning signal; Position computation module, for according to the positional information of at least two base stations and the distance apart from described at least two satellite base stations, calculates the position of receiver.
Therefore the embodiment of the present invention adopts the multiple satellite base stations setting up coverage goal region; Receiver obtains the positioning signal that satellite base station sends, and described positioning signal carries the positional information of satellite base station; The distance of receiver and satellite base station is calculated according to described positioning signal; According to the positional information of at least two base stations and the distance apart from described at least two satellite base stations, calculate the technical scheme of the position of receiver, achieve following technique effect:
Set up satellite base station group covering the whole world, receiver communicates with satellite base station and realizes locating, and avoids the process of receiver receiving satellite signal, simpler than traditional locator meams;
Receiver does not need the loaded down with trivial details process resolving satellite position, can reduce the energy consumption of a lot of receiver;
Receiver utilizes the positional information of two or above base station and distance to calculate the positional information of self, and this locator meams is simpler than traditional locator meams, and execution speed is faster;
Receiver only needs to utilize the signal message of base station (comprising the location coordinate information of base station and the receiver distance from base station) location, avoid in traditional location technology run into satellite-signal weak when cannot complete the situation of location, there is the more general scope of application.
Accompanying drawing explanation
In order to be illustrated more clearly in embodiment of the present invention technical scheme, be briefly described to the accompanying drawing used required in embodiment and description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the schematic diagram of the localization method based on satellite base station that one embodiment of the invention provides;
Fig. 2 is the schematic diagram of the positioning system based on satellite base station that one embodiment of the invention provides;
Fig. 3 is the schematic diagram of the distance calculating receiver and satellite base station in the embodiment of the present invention.
Embodiment
The embodiment of the present invention provides a kind of localization method based on satellite base station and system, with solve existing global position system position time, receiver is long for computing time, and energy consumption is large, cannot complete the technical matters of location in the place that satellite-signal is weak.
The present invention program is understood better in order to make those skilled in the art person, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the embodiment of a part of the present invention, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, should belong to the scope of protection of the invention.
Conveniently understand the present invention, first introduce during the present invention describes the several key elements that can introduce.
Gps system:
GPS originates in a project of US military in 1958, within 1964, comes into operation.20 century 70s, land, sea, and air of U.S. joint research and developments Global Positioning System of new generation.Fundamental purpose is for large field, land, sea and air three provides real-time, round-the-clock and global navigation Service, and for some military purposes such as information acquisition, Nuclear detonation monitoring and emergency communications, through the research experiment in more than 20 years, cost 30,000,000,000 dollars, by 1994, Global coverage rate up to 98% 24 gps satellite constellations oneself laid.The predecessor of GPS is a kind of Transit satellite positioning system (Transit) of US military development, and development in 1958, formally comes into operation for 1964.StarNet's work that this system forms with 5 to 6 satellites, walks around at most the earth 13 times every day, and cannot provide elevation information, also not fully up to expectations in positioning precision.But transit navigation system makes research and development department achieve preliminary experience to satnav, and demonstrates the feasibility positioned by satellite system, and place mat has been buried in the development for GPS.Huge superiority in navigation is demonstrated and transit navigation system exists the great drawback in submarine and ship navigation due to satnav.U.S.'s the armies of navy, army and air force and civilian department all feel in the urgent need to a kind of new satellite navigation system.
GPS navigation system is based on 24 positioning satellite in the whole world, provides a kind of radio-navigation positioning system of the information such as three-dimensional position, three-dimensional velocity to all parts of the world round-the-clockly.It is made up of three parts, and one is ground control segment, is made up of master station, ground-plane antenna, monitoring station and communication backup system.Two is space segments, is made up of 24 satellites, is distributed in 6 orbit planes.Three is user's set parts, is made up of GPS and satellite antenna.Civilian positioning precision can reach in 10 meters.
Gps system forms:
The space segment of space segment: GPS forms (21 operational satellites by 24 satellites; 3 backup satellites), it is positioned at the overhead apart from earth's surface 20200km, and the cycle of operation is 12h.Satellite is evenly distributed on (each orbital plane 4) in 6 orbital planes, and orbit inclination is 55 °.The distribution of satellite makes the satellite that all can observe more than 4 in the whole world Anywhere, any time, and the navigation information that can prestore in the satel-lite, the satellite of GPS is because problems such as air frictions, and As time goes on, navigation accuracy can reduce gradually.
Ground control system: ground control system is made up of monitoring station (Monitor Station), main control station (MasterMonitor Station), ground-plane antenna (Ground Antenna), and main control station is positioned at Chun Tian city, Colorado (Colorado.Springfield).Ground control station is responsible for collecting the message passed back by satellite, and calculates satellite ephemeris, relative distance, the data such as atmospheric correction.
Customer equipment part: customer equipment part and gps signal receiver.Its major function to capture the satellite to be measured by selected by certain satellite cutoff angle, and follow the tracks of the operation of these satellites.When after receiver acquisition to the satellite-signal followed the tracks of, just can measure the pseudo-distance of receiving antenna to satellite and the rate of change of distance, demodulate the data such as satellite orbit parameter.According to these data, the micro-process computer in receiver just can position calculating by positioning calculation method, calculate the longitude and latitude of user geographic location, highly, speed, the information such as time.In receiver hardware and machine, the poster processing soft bag of software and gps data forms complete GPS subscriber equipment.The structure of GPS is divided into antenna element and receiving element two parts.Receiver generally adopts in machine and the outer two kinds of direct supplys of machine.The object arranging internal power supply is not interrupt Continuous Observation when changing external power.With self-contained battery automatic charging during machine external power.After shutdown, self-contained battery is that RAM storer is powered, to prevent loss of data.Various types of receiver volume is more and more less, and weight is more and more lighter, is convenient to field inspection and uses.Secondly be then user's receiver, existing single-frequency and double frequency two kinds, but due to price factor, what user bought mostly is single-frequency receiver.
Gps system navigation principle:
The ultimate principle of GPS navigation system is the distance between the satellite of measuring known location to receiver user, and then the data of comprehensive multi-satellite just can know the particular location of receiver.Reach this purpose, the time that the position of satellite can be recorded according to spaceborne clock finds in satellite ephemeris.User then propagates into by record satellite-signal the time that user experiences to the distance of satellite, being multiplied by the light velocity again obtains (due to the ionospheric interference of atmospheric envelope, this distance is not the actual distance between user and satellite, but pseudorange (PR): when gps satellite normally works, constantly navigation message can be launched by the pseudo-random code (abbreviation pseudo-code) of 1 and 0 binary element composition.The pseudo-code one that gps system uses has two kinds, is civilian C/A code and military P (Y) code respectively.C/A code frequency 1.023MHz, the repetition period one millisecond, intersymbol, apart from 1 microsecond, is equivalent to 300m; P code frequency 10.23MHz, 266.4 days repetition periods, intersymbol, apart from 0.1 microsecond, is equivalent to 30m.And Y code is formed on the basis of P code, security performance is better.Navigation message comprises the information such as satellite ephemeris, working condition, clock correction, ionospheric delay correction, refraction correction.It is that rectification out, is modulated at 50b/s and carrier frequency launches from satellite-signal.5 every frame length 6s of subframe are comprised in each prime frame of navigation message.Each 10 character codes of first three frame; Every 30 seconds repeat once, and renewal per hour once.Rear two frames are 15000b altogether.Content in navigation message mainly contain telemetry code, hand over word, the 1st, 2,3 data blocks, wherein most important is then almanac data.When user receives navigation message, extract satellite time and the clock of itself and oneself is contrasted the distance just can learning satellite and user, present position when satellite almanac data in recycling navigation message extrapolates satellite launch text, the information such as the position and speed of user in WGS-84 earth coordinates just can be learnt.
GPS:
GPS is the instrument of receiving world locational system satellite-signal space of planes position definitely.The navigator fix signal that gps satellite sends is a kind of information resources shared for hundreds of thousands of subscribers.For the users in land, ocean and space, as long as have the receiving equipment that can receive, follow the tracks of, convert and measure gps signal, i.e. gps signal receiver.
Gps data processing procedure:
After GPS receives gps data, processing procedure comprises catches the estimation of satellite, tracking satellite and pseudorange.The object of catching satellite determines the carrier frequency of visible satellite and satellite-signal, the coarse value of code phase.The common method serial search of catching is caught, parallel spatial code acquisition, parallel code phase search are caught.Catch the guestimate provided frequency and code phase parameter, the fundamental purpose of tracking satellite makes these parameters precision more, and keep following the tracks of, and then from the satellite-signal followed the tracks of, demodulates navigation data, provide pseudorange to estimate simultaneously.Resolve pseudorange to comprise navigation data recovery, the decoding of navigation data, the position of resolving satellite, pseudorange estimation and resolve the position of receiver.Finally determining the position of receiver by catching satellite, tracking satellite and compute pseudo-ranges, completing location.
Triones navigation system:
Beidou satellite navigation system (Bei Dou Navigation Satellite System, BDS) be China implementing independent research, independent operating GPS (Global Position System).System Construction target is: build up independent, open and compatible, advanced technology, reliable and stable Beidou satellite navigation system covering the whole world, promote that satellite navigation industrial chain is formed, form perfect national satellite navigation application industry to support, promote and security system, promote the widespread use of satellite navigation in national economy society every profession and trade.Beidou satellite navigation system rises on Dec 27th, 2011 provides continuous navigation to locate and time service service.
Beidou satellite navigation system by vacant terminal, ground surface end and user side three part form.Vacant terminal comprises 5 satellites and 30 non-geo satellites.Ground surface end comprises several land stations such as master station, injection plant and monitoring station.User side forms by Big Dipper user terminal and with the terminal of other satellite navigation system compatibilities such as GPS of America, Russia " GLONASS " (GLONASS), European Union " Galileo " (GALILEO).China has succeeded in sending up four Beidou navigation test satellites and 16 Beidou navigation satellites (wherein, the Big Dipper-1A ends task) before this, on system group network and experimental basis, progressively will expand to GPS (Global Position System).Beidou satellite navigation system expected satellite sum is more than 50.This system round-the-clock, round-the-clock can provide high precision, highly reliable location, navigation, time service service have short message communication capacity concurrently for all types of user in the world.China produces the manufacturer of location services equipment later, all will provide the support to GPS and dipper system, can improve the degree of accuracy of location.
Positioning principle and the GPS of triones navigation system are close, are all the location coordinate informations utilizing the positional information calculation of 4 or above satellite to go out receiver.Beidou navigation satellite temporarily just covers the scope in Asia, builds up navigational system covering the whole world by the year two thousand twenty, estimates that the satellite number launched reaches 50.
Below by specific embodiment, embodiment of the present invention technical scheme is described in detail.
Embodiment one,
Please refer to Fig. 1, the embodiment of the present invention provides a kind of localization method based on satellite base station, can comprise:
110, multiple satellite base stations in coverage goal region are set up.
In the embodiment of the present invention, first build coverage goal the region such as whole nation or global multiple satellite base stations, said satellite base station can be specifically but be not limited to GPS base station or Big Dipper base station.Satellite base station can be used for the signal receiving satellite, processes signal, can be used for the information of collecting satellite, detects the state of satellite, be equivalent to a monitoring station, play part or all of control end in gps system.The position coordinates of satellite base station is known, and each satellite base station knows oneself positional information.By the signal communication of specific format between satellite base station and receiver.The signal that each satellite base station sends has certain coverage, need consider the position of two base stations, guaranteeing that the signal of two base station coverage can have the part of coincidence when building satellite base station, ensures do not have signal blind zone.
Multiple satellite base station forms a network system, and this network system ensures the quorum sensing inhibitor that target area institute some places have satellite base station to send.In the present embodiment, the position of satellite base station can be utilized, determine the position of receiver.Said receiver can be GPS device or Big Dipper equipment.
120, receiver obtains the positioning signal that satellite base station sends, and described positioning signal carries the positional information of satellite base station.
In the present embodiment, receiver can obtain the positioning signal that satellite base station sends, and described positioning signal carries the positional information of satellite base station.Thus receiver obtains the positional information of neighbouring satellite base station by receiving positioning signal.
In a kind of embodiment, when receiver needs location, can send request signal to neighbouring satellite base station, request signal can adopt the mode of broadcast; The satellite base station receiving positioning request signal replys positioning signal to receiver; The positional information that the positioning signal that receiver receives the reply of base station comprises.
In other embodiment, satellite base station is also by the mode timed sending positioning signal of broadcast.When receiver needs location, the positioning signal that near receiving, satellite base station sends.
130, the distance of receiver and satellite base station is calculated according to described positioning signal.
After receiver receives positioning signal, the positioning signal that can send according to base station arrives signal intensity during receiver, calculates the distance of receiver and satellite base station.Signal intensity and distance are inversely proportional to, and distance is far away, then signal intensity is less.It is take satellite base station as the spheroid spatial emission towards periphery of the centre of sphere that satellite base station sends the mode of signal, the intensity of signal weakens along with the increase of the distance with satellite base station, there are mapping relations in the distance of the intensity of signal and receiver and base station, therefore can calculate the distance of receiver to base station according to the power of signal.In a kind of embodiment, the mapping table of can prestore in receiver a signal intensity and distance, when after the intensity detecting the positioning signal received, by inquiring about this mapping table, obtains the distance of receiver and satellite base station.
140, according to the positional information of at least two base stations and the distance with described at least two satellite base stations, the position of receiver is calculated.
In the present embodiment, need the relevant information obtaining at least two base stations, comprise the positional information of base station and the distance with satellite base station, calculate the position of receiver.
In a kind of embodiment, concrete computing method are as follows:
As shown in Figure 3, suppose that employing two calculates from the relevant information of the nearest satellite base station of receiver, two satellite base stations represent with A and B respectively, the position coordinates of two satellite base stations uses A (x1 respectively, y1) and B (x2, y2) represent, receiver C represents, the position coordinates of receiver represents with C (x, y).Further, the distance calculating satellite base station A and receiver C is supposed | AC|=d1; The distance of satellite base station B and receiver C | BC|=d2, then the position coordinates C (x, y) of receiver C can utilize solving equations below:
sqrt（（x-x1）^2+(y-y1)^2）=d1;
sqrt((x–x2)^2)+(y-y2)^2)=d2；
Wherein, sqrt () is the function of extraction of square root, and ^2 represents square, such as, (x-x1) ^2 represent (x-x1) square; Above two equations simultaneousnesses, solve two unknown number x and y, obtain determining to separate.
The position coordinates (x, y) obtained is exactly the position coordinates of receiver C.
Above, embodiments provide a kind of localization method based on satellite base station, multiple satellite base station by setting up multiple satellite base stations in the such as whole world, coverage goal region, and is formed a network system by the method, and the position of each satellite base station is known; Adopt the signal communication of specific format between satellite base station and receiver, judged the distance of receiver and base station by the power of signal; Two or above satellite base station is utilized to calculate the position of receiver to the distance of receiver.
Embodiment of the present invention method, by adopting technique scheme, achieves following technique effect:
Set up satellite base station group covering the whole world, receiver communicates with satellite base station and realizes locating, and avoids the process of receiver receiving satellite signal, simpler than traditional locator meams;
Receiver does not need the loaded down with trivial details process resolving satellite position, can reduce the energy consumption of a lot of receiver;
Receiver utilizes the positional information of two or above base station and distance to calculate the positional information of self, and this locator meams is simpler than traditional locator meams, and execution speed is faster, and positioning time is shorter;
Receiver only needs to utilize the signal message of base station (comprising the location coordinate information of base station and the receiver distance from base station) location, avoid in traditional location technology run into satellite-signal weak when cannot complete the situation of location, there is the more general scope of application.
Embodiment two,
Please refer to Fig. 2, the embodiment of the present invention provides a kind of positioning system based on satellite base station, comprising: multiple satellite base stations 30 in receiver 20 and coverage goal region;
Described satellite base station 30 is for sending positioning signal;
Described receiver 20, comprising:
Acquisition module 201, for obtaining the positioning signal that satellite base station sends, described positioning signal carries the positional information of satellite base station;
Distance calculation module 202, for calculating the distance of receiver and satellite base station according to described positioning signal;
Position computation module 203, for according to the positional information of at least two base stations and the distance apart from described at least two satellite base stations, calculates the position of receiver.
In some embodiments of the invention, described satellite base station can be GPS base station or Big Dipper base station, and described multiple satellite base stations are covering the whole world, and described multiple satellite base station network consisting system, wherein the position of each satellite base station is known.
In some embodiments of the invention, described receiver 20 can also comprise: sending module, for sending request signal to neighbouring satellite base station.
In some embodiments of the invention, described distance calculation module 203, the positioning signal that specifically can be used for sending according to base station arrives signal intensity during receiver, calculates the distance of receiver and satellite base station.
Above, embodiments provide a kind of positioning system based on satellite base station, achieve following technique effect:
Set up satellite base station group covering the whole world, receiver communicates with satellite base station and realizes locating, and avoids the process of receiver receiving satellite signal, simpler than traditional locator meams;
Receiver does not need the loaded down with trivial details process resolving satellite position, can reduce the energy consumption of a lot of receiver;
Receiver utilizes the positional information of two or above base station and distance to calculate the positional information of self, and this locator meams is simpler than traditional locator meams, and execution speed is faster, and positioning time is shorter;
Receiver only needs to utilize the signal message of base station (comprising the location coordinate information of base station and the receiver distance from base station) location, avoid in traditional location technology run into satellite-signal weak when cannot complete the situation of location, there is the more general scope of application.
In the above-described embodiments, the description of each embodiment is all emphasized particularly on different fields, in certain embodiment, there is no the part described in detail, can see the associated description of other embodiment.
It should be noted that, for aforesaid each embodiment of the method, in order to simple description, therefore it is all expressed as a series of combination of actions, but those skilled in the art should know, the present invention is not by the restriction of described sequence of movement, because according to the present invention, some step can adopt other order or carry out simultaneously.Secondly, those skilled in the art also should know, the embodiment described in instructions all belongs to preferred embodiment, and involved action and module might not be that the present invention is necessary.
The localization method based on satellite base station provided the embodiment of the present invention above and system are described in detail, but the explanation of above embodiment just understands method of the present invention and core concept thereof for helping, and should not be construed as limitation of the present invention.Those skilled in the art, according to thought of the present invention, in the technical scope that the present invention discloses, the change that can expect easily or replacement, all should be encompassed within protection scope of the present invention.
Claims (10)
1. based on a localization method for satellite base station, it is characterized in that, comprising:
Set up multiple satellite base stations in coverage goal region;
Receiver obtains the positioning signal that satellite base station sends, and described positioning signal carries the positional information of satellite base station;
The distance of receiver and satellite base station is calculated according to described positioning signal;
According to the positional information of at least two base stations and the distance with described at least two satellite base stations, calculate the position of receiver.
2. method according to claim 1, is characterized in that, described satellite base station is GPS base station or Big Dipper base station.
3. method according to claim 1, is characterized in that, the described multiple satellite base stations setting up coverage goal region comprise:
Set up multiple satellite base stations covering the whole world, described multiple satellite base station network consisting system, wherein the position of each satellite base station is known.
4. method according to claim 1, is characterized in that, described receiver also comprises before obtaining the positioning signal of satellite base station transmission:
Receiver sends request signal to neighbouring satellite base station.
5. method according to claim 1, is characterized in that, the distance calculating receiver and satellite base station according to described positioning signal comprises:
The positioning signal sent according to base station arrives signal intensity during receiver, calculates the distance of receiver and satellite base station.
6. based on a positioning system for satellite base station, it is characterized in that, comprising: multiple satellite base stations in receiver and coverage goal region;
Described satellite base station is for sending positioning signal;
Described receiver, comprising:
Acquisition module, for obtaining the positioning signal that satellite base station sends, described positioning signal carries the positional information of satellite base station;
Distance calculation module, for calculating the distance of receiver and satellite base station according to described positioning signal;
Position computation module, for according to the positional information of at least two base stations and the distance apart from described at least two satellite base stations, calculates the position of receiver.
7. system according to claim 6, is characterized in that, described satellite base station is GPS base station or Big Dipper base station.
8. system according to claim 6, is characterized in that, described multiple satellite base stations are covering the whole world, and described multiple satellite base station network consisting system, wherein the position of each satellite base station is known.
9. system according to claim 6, is characterized in that, described receiver also comprises:
Sending module, for sending request signal to neighbouring satellite base station.
10. system according to claim 6, is characterized in that, described distance calculation module, and the positioning signal specifically for sending according to base station arrives signal intensity during receiver, calculates the distance of receiver and satellite base station.
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| CN105741665A (en) * | 2016-01-29 | 2016-07-06 | 北京华云智联科技有限公司 | Satellite navigation teaching demonstration platform |
| CN106597504A (en) * | 2017-01-12 | 2017-04-26 | 山东北斗华宸导航技术股份有限公司 | Measurement system and method for building construction |
| CN110471027A (en) * | 2019-07-23 | 2019-11-19 | 湖南交工智能技术有限公司 | The air navigation aid detected under the environment of unmanned plane blind area |
| CN113810840A (en) * | 2020-06-01 | 2021-12-17 | 丰田自动车株式会社 | Position information system |
| CN115128540A (en) * | 2022-09-02 | 2022-09-30 | 珠海翔翼航空技术有限公司 | Positioning and orienting method and device suitable for flight platform |
| CN116520367A (en) * | 2023-07-04 | 2023-08-01 | 深圳市天龙世纪科技发展有限公司 | Satellite positioning security method and device based on Internet of things, electronic equipment and medium |
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| CN115128540A (en) * | 2022-09-02 | 2022-09-30 | 珠海翔翼航空技术有限公司 | Positioning and orienting method and device suitable for flight platform |
| CN115128540B (en) * | 2022-09-02 | 2022-12-06 | 珠海翔翼航空技术有限公司 | Positioning and orienting method and device suitable for flight platform |
| CN116520367A (en) * | 2023-07-04 | 2023-08-01 | 深圳市天龙世纪科技发展有限公司 | Satellite positioning security method and device based on Internet of things, electronic equipment and medium |
| CN116520367B (en) * | 2023-07-04 | 2023-09-08 | 深圳市天龙世纪科技发展有限公司 | Satellite positioning security method and device based on Internet of things, electronic equipment and medium |
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