CN206378597U - A kind of low-cost and high-precision alignment system - Google Patents
A kind of low-cost and high-precision alignment system Download PDFInfo
- Publication number
- CN206378597U CN206378597U CN201720059650.2U CN201720059650U CN206378597U CN 206378597 U CN206378597 U CN 206378597U CN 201720059650 U CN201720059650 U CN 201720059650U CN 206378597 U CN206378597 U CN 206378597U
- Authority
- CN
- China
- Prior art keywords
- single frequency
- frequency receiving
- base station
- data
- module
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Position Fixing By Use Of Radio Waves (AREA)
Abstract
The utility model discloses a kind of low-cost and high-precision alignment system, is made up of single frequency receiving, GPRS module and processor control module.Single frequency receiving obtains satellite data as receiver user；GPRS module and base station communication, obtain base station data；The data that processor control module is sent to single frequency receiving and GPRS module are decoded, and obtain almanac data, the observation Value Data of single frequency receiving, the coordinate data of base station and the observation Value Data of base station；Offset is solved further according to these data；The coordinate of user is obtained according to the coordinate of offset and base station afterwards.The utility model realizes RTK technologies using single frequency receiving；Single frequency receiving is cheap first, only 1/10th of dual-frequency receiver, can be widely used by market；Secondly single frequency receiving is low in energy consumption, it is adaptable to embedded device；The utility model has small volume, lightweight with the characteristics of being convenient for carrying, and may be mounted on unmanned plane.
Description
Technical field
The utility model is related to field of locating technology, and in particular to a kind of low-cost and high-precision alignment system.
Background technology
With the arriving of the Internet of things era, high accuracy positioning equipment is increasingly paid attention to by market.Unmanned aerial vehicle remote sensing is taken the photograph
Shadow is measured, and unmanned plane express delivery delivery, driving license test, crowded degree real-time statistics are required for high accuracy positioning equipment.High accuracy
Location equipment, relies on substantially RTK technologies.RTK (Real-time kinematic) carrier phase difference technology, is real-time place
The difference method of two measuring station carrier phase observed quantities is managed, the carrier phase that base station is gathered is issued into receiver user, entered
Row asks difference to resolve coordinate.The equipment of existing use RTK technologies, relies on dual-frequency receiver on hardware.But dual-frequency receiver is deposited
In following problem：First, dual-frequency receiver is expensive, and domestic consumer is difficult to bear, and should not promote；Secondly, double frequency connects
Receipts machine power consumption is larger, requires high to battery electric quantity；Finally, dual-frequency receiver volume is larger, is unfavorable for carrying.
Utility model content
Technical problem to be solved in the utility model is that the equipment of existing use RTK technologies needs to rely on dual-frequency receiver
There is provided a kind of low-cost and high-precision alignment system the problem of brought.
To solve the above problems, the utility model is achieved through the following technical solutions：
A kind of low-cost and high-precision alignment system, including single frequency receiving, GPRS module, processor control module and power supply
Module；Single frequency receiving obtains satellite data as receiver user；GPRS module and base station communication, obtain base station data；Place
The data that reason device control module is sent to single frequency receiving and GPRS module are decoded, and obtain almanac data, single frequency receiving
Observation Value Data, the observation Value Data of the coordinate data of base station and base station；Offset is solved further according to these data；Basis afterwards
The coordinate of offset and base station obtains the coordinate of user；Power module is single frequency receiving, GPRS module and processor control mould
Block is powered.
Especially, single frequency receiving is by antenna and satellite communication, and single frequency receiving is controlled by USB interface and processor
Module is connected.
Especially, GPRS module is by antenna and base station communication, and GPRS module controls mould by RS232 interfaces and processor
Block is connected.
The utility model constructs the positioning system that a single frequency receiving, GPRS module and processor control module are core
System, satellite data is obtained by single frequency receiving, obtains base station data by GPRS module, processor control module is according to satellite
Data and base station data carry out difference processing, and obtain the positional information of user accordingly.
Compared with prior art, RTK technologies are realized using single frequency receiving；Single frequency receiving is cheap first, only
Have 1/10th of dual-frequency receiver, can be widely used by market；Secondly single frequency receiving is low in energy consumption, it is adaptable to embedded to set
It is standby；The utility model has small volume, lightweight with the characteristics of being convenient for carrying, and may be mounted on unmanned plane.
Brief description of the drawings
Fig. 1 is a kind of theory diagram of low-cost and high-precision alignment system.
Embodiment
Below in conjunction with the accompanying drawings, preferred embodiment of the present utility model is further described, it is emphasized that, this reality
Following examples are not limited only to new.
A kind of low-cost and high-precision alignment system, as shown in figure 1, controlling mould by single frequency receiving, GPRS module, processor
Block and power module composition.Single frequency receiving passes through USB interface and processor by an antenna and satellite communication, single frequency receiving
Control module is connected.GPRS module is controlled by another antenna and base station communication, GPRS module by RS232 interfaces and processor
Module is connected.
Single frequency receiving obtains satellite data as receiver user.Single frequency receiving, which is received, comes from gps satellite L1 frequency ranges
Data, and accordingly calculated, gps satellite Pseudo-range Observations, carrier observations and the GPS in L1 frequency ranges can be exported
Satellite almanac data.These data are sent with fixed form.
GPRS module is used for and base station communication, obtains base station data.GPRS module is according to IP address, port numbers, account and
The information such as password, obtain the base station data that base station is transmitted.The coordinate of base station receiver is included in base station data, and base station is in L1
Pseudo-range Observations under frequency range, carrier observations.Base station data has fixed form, referred to as RTCM format.
Processor control module is handled satellite data and base station data, and exports positioning result.In the present embodiment
In, the core of processor control module is arm processor.
Processor control module receives the data that single frequency receiving and GPRS module are sent.First to the data solution of receiver
Code, runs decoder module, extracts corresponding value.Base station data is decoded again, RTCM decoder modules is run, is resolved to base station
Corresponding value.Star program is selected in operation, the larger satellite data of observation error is deleted, such as elevation angle is relatively low, and signal to noise ratio is relatively low
Satellite.Bring the data of remaining star in difference program into, obtain offset of the receiver user relative to base station.This is inclined
There is larger error in shifting amount, therefore, bring multiprecision arithmetic module into, lift the precision of offset.Offset is added into base station
Coordinate, you can obtain high-precision coordinate.
The data that single frequency receiving is transmitted, are divided into 2 classes.The first kind is referred to as observation, by current time, pseudorange value ρ and L1
Frequency range carrier valueConstitute.Pseudorange value refers to that receiver, by reading the data that satellite is sent, calculates satellite to receiver
Distance, but be due to that the data that satellite is sent have that the distance value error measured is larger.Carrier value, refers to satellite
Data are transmitted by electromagnetic wave, due to wave frequency, it is known that then carrier wave girth is determined.Receiver can calculate satellite to connecing
The carrier cycle issue of receipts machine, you can know satellite to receiver distance.Carrier observations are short due to wavelength, and periodicity is accurate, because
This precision is higher, but there are problems that integer ambiguity.Equations of The Second Kind is referred to as satellite almanac data, satellite in space real time kinematics,
Satellite does not broadcast the real-time track coordinate of satellite, but sends one group of orbit parameter, and user is according to current time, you can calculate
Satellite changing coordinates.
The data that base station is transmitted, are also classified into 2 classes.The first kind is observation, is current time, and base station receiver is defended to GPS
The Pseudo-range Observations and carrier observations of star.Equations of The Second Kind is the coordinate of base station, and the coordinate is accurate coordinate, and precision is high.
Power module is that single frequency receiving, GPRS module and processor control module are powered.In the present embodiment, power supply mould
Block connects dc source, and the dc source of input is filtered, stabilized supply voltage, 3 module for power supply more than.
Traditional high-accuracy position system needs to use dual-frequency receiver, carries out difference to realize by 2 satellite-signals
High accuracy positioning, and the high-accuracy position system of the present invention, are combined using single frequency receiving and GPRS module, pass through satellite number
High accuracy positioning is realized according to difference is carried out with base station data.Entered in processor control module according to satellite data and base station data
Row difference processing obtains the process of high accuracy positioning result, and carrying out difference processing with 2 satellite datas obtains high accuracy positioning knot
The process of fruit is similar, belongs to prior art, and it is only satellite-signal to be substituted for all the way for base station signal all the way that it, which is distinguished,.By
The precision of satellite-signal is much larger than in the precision of base station signal, therefore positioning result obtained by the utility model is relative to double frequency
The precision for the positioning result that receiver is realized is higher.In addition, the present invention also have it is cheap, low in energy consumption, be easily achieved and be
The characteristics of system is embedded.
Claims (3)
1. a kind of low-cost and high-precision alignment system, it is characterized in that, including single frequency receiving, GPRS module, processor control mould
Block and power module；
Single frequency receiving and satellite communication, the output end of single frequency receiving connect the input of processor control module；Single-frequency connects
Receipts machine obtains satellite data as receiver user；
GPRS module and base station communication, the output end of GPRS module connect the input of processor control module, and GPRS module is obtained
Obtain base station data；
Processor control module connects single frequency receiving and GPRS module simultaneously；Processor control module is sent into single frequency receiving
The base station data sent into of satellite data and GPRS module carry out difference processing, draw the position coordinates of user；
Power module power module is connected with single frequency receiving, GPRS module and processor control module, power module power supply mould
Block is that single frequency receiving, GPRS module and processor control module are powered.
2. a kind of low-cost and high-precision alignment system according to claim 1, it is characterized in that, single frequency receiving passes through antenna
With satellite communication, single frequency receiving is connected by USB interface with processor control module.
3. a kind of low-cost and high-precision alignment system according to claim 1, it is characterized in that, GPRS module by antenna with
Base station communication, GPRS module is connected by RS232 interfaces with processor control module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720059650.2U CN206378597U (en) | 2017-01-17 | 2017-01-17 | A kind of low-cost and high-precision alignment system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720059650.2U CN206378597U (en) | 2017-01-17 | 2017-01-17 | A kind of low-cost and high-precision alignment system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206378597U true CN206378597U (en) | 2017-08-04 |
Family
ID=59400968
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720059650.2U Expired - Fee Related CN206378597U (en) | 2017-01-17 | 2017-01-17 | A kind of low-cost and high-precision alignment system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206378597U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108521835A (en) * | 2017-12-18 | 2018-09-11 | 深圳市大疆创新科技有限公司 | The circular polarized antenna component of unmanned plane and unmanned plane |
-
2017
- 2017-01-17 CN CN201720059650.2U patent/CN206378597U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108521835A (en) * | 2017-12-18 | 2018-09-11 | 深圳市大疆创新科技有限公司 | The circular polarized antenna component of unmanned plane and unmanned plane |
| WO2019119237A1 (en) * | 2017-12-18 | 2019-06-27 | 深圳市大疆创新科技有限公司 | Unmanned aerial vehicle and circularly polarized antenna assembly thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106680854A (en) | Low cost and high precision positioning system and method | |
| CN102890295B (en) | A kind of integrated satellite navigation meteorological sounding system | |
| CN102540228B (en) | A kind of single-frequency GPS high-precision point positioning system and method | |
| CN108345310B (en) | Agricultural machinery autopilot system | |
| CN204142233U (en) | A kind of intelligent land area measuring device | |
| CN2929649Y (en) | Free over station instrument | |
| CN101872017A (en) | GNSS-R (Global Navigation Satellite System-Reflected signal) remote sensing monitoring system and monitoring method thereof | |
| CN109660303B (en) | Short wave antenna performance evaluation system | |
| CN201716420U (en) | RTK GPS receiving system based on VRS | |
| CN203689760U (en) | Parking test detection equipment for farm machinery drivers' examinations | |
| CN206378597U (en) | A kind of low-cost and high-precision alignment system | |
| CN105807293A (en) | SOC (system on chip)-based single-board multi-antenna attitude-determining receiver | |
| CN103327450A (en) | Intensive-calculating GPS receiver based on mobile communication network and positioning method of same | |
| CN110764105A (en) | Unmanned aerial vehicle's laser radar system and unmanned aerial vehicle system | |
| CN209624779U (en) | A kind of configurable high accuracy positioning positioning transceiving equipment | |
| CN208819049U (en) | Automatic steering control of farm mechanism positioning and orienting device | |
| CN201754186U (en) | GNSS-R (global navigation satellite system-reflectometry) remote sensing monitoring system | |
| CN205941919U (en) | Low-cost differential GPS system applied to unmanned aerial vehicle | |
| CN109373987A (en) | Positioning and directing super-station instrument | |
| CN213069232U (en) | Seamless positioning navigation unmanned vehicle for synchronous weather guarantee | |
| CN206235741U (en) | A kind of portable navigation positioning terminal and smart mobile phone for strengthening mobile phone positioning precision | |
| CN101533955A (en) | Precise testing deployment device of antenna spatial angle identified by wireless radio frequency | |
| CN212275982U (en) | Compound GPS receiver | |
| CN212160096U (en) | Automatic navigation, positioning and orientation system of agricultural machine | |
| CN202599414U (en) | GPS (Global Position System) plotting device using information technology |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170804 Termination date: 20220117 |