CN201266237Y - High precision GPS difference system - Google Patents

High precision GPS difference system Download PDF

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Publication number
CN201266237Y
CN201266237Y CNU200820110220XU CN200820110220U CN201266237Y CN 201266237 Y CN201266237 Y CN 201266237Y CN U200820110220X U CNU200820110220X U CN U200820110220XU CN 200820110220 U CN200820110220 U CN 200820110220U CN 201266237 Y CN201266237 Y CN 201266237Y
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China
Prior art keywords
data
module
base station
information
station
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Expired - Fee Related
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CNU200820110220XU
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Chinese (zh)
Inventor
贺宏宇
姜楠
魏茂森
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Beijing SDi Science & Technology Co., Ltd.
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Beijing Sdi Tech Development Co Ltd
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Abstract

The utility model discloses a high-precision differential global positioning system comprising a reference station device and a mobile radio station device which respectively comprise a GPS module, data transmission modules and an information processing module, wherein the two GPS modules are respectively connected with a GPS antenna used for acquiring GPS satellite digital information; the information processing module of the mobile radio station device is used for receiving the acquired satellite digital information and differential information and processing and calculating the position information of a moving carrier; the information processing module of the reference station device is used for receiving the acquired satellite digital information and the digital information of the mobile radio station device and processing and finishing differential operation; the two data transmission modules are used for transmitting the data between the mobile radio station device and the reference station device. The utility model can satisfy the test requirements of test bases or shooting ranges and realize high-precision flight check test measurement.

Description

The high-precision GPS differential system
Technical field
The utility model is about the high precision navigator fix technology of vehicle-mounted, boat-carrying, airborne, missile-borne testing equipment, is specifically related to a kind of high-precision GPS differential system.
Background technology
At present, in test bases such as base or target ranges, in order to measure the flight path of transport vehicle, ships, aircraft or body, must have relevant device to measure the position of various carriers in motion process, the testing apparatus of current use has the optics inspection to fly system etc.But the optics inspection flies device systems bulky complex, expense height, the cycle is long, operating personnel are many, operating distance can only be limited within the 100km, measuring accuracy is low, therefore needs to be restricted in the distance flight test at some.
To be the U.S. develop since 1970's GPS (Global Positioning System-GPS), last 20 years, expensive 20,000,000,000 dollars, built up in 1994 comprehensively, have the new generation satellite navigation and the positioning system of carrying out comprehensive real-time three-dimensional navigation and station-keeping ability in sea, land and sky.Show through nearly 10 years uses of department such as China's mappings, GPS is with distinguishing features such as round-the-clock, high precision, robotization, high benefits, win vast mapping operations person's trust, and successfully be applied to multiple subjects such as geodetic surveying, engineering survey, photogrammetric measurement, delivery vehicle navigation and control, earth movement monitoring, engineering project deformation monitoring, resources survey, geodynamics, thereby the technological revolution of bringing a field depth to carve for test position fix, navigation field.
Therefore, utilize GPS to realize the high precision navigator fix of vehicle-mounted, boat-carrying, airborne, missile-borne testing equipment, can progressively substitute original optics and examine the system that flies.
The utility model content
The purpose of this utility model is, utilizes existing GPS technology, and a kind of GPS differential system of high precision navigator fix is provided.
The technical solution of the utility model is:
A kind of high-precision GPS differential system, comprise base station device and mobile station apparatus, mobile station apparatus is installed on the mobile vehicle, the stationkeeping of base station device, it is characterized in that, base station device and mobile station apparatus comprise a GPS module respectively, one data transmission module and a message processing module, wherein, two GPS modules connect a gps antenna respectively, be used to gather gps satellite numerical information, the mobile station device processing module is used to receive the satellite digital information that collects, and receives difference information, handle in the lump, finally calculate the positional information of mobile vehicle, the message processing module of base station device is used to receive the satellite digital information that collects, receive the data message of mobile station apparatus, handle in the lump, finish calculus of differences, two data transmission modules are used to transmit the data between mobile station apparatus and the base station device.
Be provided with wireless transport module between the data transmission module of described base station device and the data transmission module of movement station.
Described mobile station apparatus also comprises a data memory module, and this module is used to carry out data acquisition, storage.
Described base station device also comprises a data memory module, and this module is used to gather, store status information, positional information and the data acquisition information of mobile station apparatus and base station device.
Described base station device and mobile station apparatus also comprise a power module respectively, and this module is used to device that required power supply is provided.
Described base station device is provided with a real-time display module, and this real-time display module is used to show status information, positional information and the data acquisition information of mobile station apparatus and base station device, and the movement locus figure of mobile vehicle is provided simultaneously.
The data memory module of base station device and data processing module after the data memory module of mobile station apparatus is connected a thing, this afterwards the data processing module data of gathering at above-mentioned two devices carry out data-switching, data processing, packing data, data analysis and data readback.
Compared with prior art, the beneficial effects of the utility model are:
This utility model high-precision GPS differential system can realize that the high precision inspection flies experimental measurement.Its operating distance big (nothing is blocked operating distance and surpassed 500km even reach more than the 1000km) has satisfied the testing requirements in test base or target range, satisfies the requirement that existing mobile unit, ships carry equipment, airborne equipment test fully.The precision that the particularly important is this GPS differential system is quite high, single-point location longitude reaches sub-meter grade, the real time differential processing accuracy can reach 15mm+1.5ppm, and the aftertreatment precision can reach 10mm+1.0ppm, and the accuracy of detection that flies system than the optics inspection has improved an order of magnitude.Concrete advantage is as follows:
1, adopts the GPS Global Positioning System (GPS), can use the restriction of no region in the world;
2, real time processing accuracy of the present utility model and processing accuracy height afterwards can provide the benchmark that needs for high-precision test, can satisfy the application of various tests;
3, real-time is good, and almost not delay in real time of the present utility model postpones mainly to come from transmission link, almost can ignore;
4, hardware is easy for installation, operates very simply, is suitable for various level crowds and uses;
5, software provides dynamic connection, makes things convenient for the user to do secondary development;
6, the utility model expense is relatively low, goes for various experimental enviroments.
Description of drawings
Fig. 1 is the utility model structural representation;
Fig. 2 is the process flow diagram of the real-time display module of the utility model;
Fig. 3 is the utility model locating information decoding process figure;
Fig. 4 is the utility model process flow diagram of processing module afterwards.
Embodiment
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail:
The utility model comprises base station device and two parts of mobile station apparatus, source of the present utility model is information such as the gps satellite ephemeris almanac of broadcasting, satellite clock error, ionospheric error, and the transmission of base station device and mobile station apparatus realizes wireless transmission by wireless transport module.
The theory diagram of system is seen shown in Figure 1.The process that flows to of connection of the present utility model and data can be divided four bulks, mobile station apparatus, base station device, display module and processing module afterwards in real time.Mobile station apparatus and base station device have comprised GPS module, message processing module (CPU), data transmission module, data memory module and power module simultaneously.Two GPS modules connect a gps antenna respectively, be used to gather gps satellite numerical information, the gps satellite numerical information that the mobile station device processing unit collects according to the GPS module calculates information such as the current location of mobile vehicle and test duration, simultaneously, resolve the data transmission module that information sends to base station by data transmission module with above-mentioned, the satellite digital information that the information process unit of base station device collects according to the GPS module and the information of resolving of mobile station apparatus, finish the RTK difference, and the RTK difference information is sent to the data transmission module of movement station by the data transmission module of base station device, the mobile station device processing unit is according to its gps satellite numerical information and above-mentioned RTK difference information, calculate the mobile vehicle current position information, and the information after will resolving by data transmission module sends to the data transmission module of base station.The function of data memory module is to carry out the data acquisition storage, uses for aftertreatment; Power module comprises power transfer module and battery module, for total system provides needed power supply.The base station device is provided with a real-time display module, and this real-time display module is used to show status information, positional information and the data acquisition information of mobile station apparatus and base station device, and the movement locus figure of mobile vehicle is provided simultaneously.The data memory module of base station device and data processing module after the data memory module of mobile station apparatus is connected a thing, this afterwards the data processing module data of gathering at above-mentioned two devices carry out data-switching, data processing, packing data, data analysis and data readback.
The display module process flow diagram is seen shown in Figure 2 in real time.
Display module figure comprises main program block diagram and thread flow chart in real time.Master routine carries out the interface setting, starts GPS decoding thread and functions such as serial data receiving thread, gps data reception preservation and decoding and displaying.The thread program has GPS decoding thread and serial data to receive two threads again,
Locating information is resolved process flow diagram and is seen shown in Figure 3.
Locating information is resolved process and is specially, the satellite that at first receives GPS is broadcast information such as ephemeris almanac, satellite clock error, ionospheric error, by searching the information frame head, judge in the information that receives and whether comprise the information of resolving needs, and determine the complete information content by message length, at last by verification and the information that found of computational discrimination whether be the information content that needs, be shown on the interface if then keep, store and resolve, if information errors then give up and search again.
The processing module block diagram as shown in Figure 4 afterwards.
After the user opens afterwards processing module, program will be opened relevant dynamic connection automatically, and will parameter wherein write the computing machine registration table and create signal such as various thread interrupt.The user adds the data file of being gathered of movement station and base station to the converting unit of processing module afterwards, and converting unit will become the data-switching of movement station and base station the file layout of * .gpb according to the different conversion thread of the different startups of data layout.Convert laggard line data and handle, add the data converted of base station and movement station to aftertreatment and resolve the unit, this resolves module will calculate more high-precision position information for the user, and provide the movement station motion track for the user.This unit finally can comprise * .txt for the user provides various data layouts, * exl, and * .xml, data layouts such as * .csv, the user can select different data layouts according to practical application.
More than by specific embodiment high-precision GPS differential system provided by the utility model has been described, it will be understood by those of skill in the art that not breaking away from the utility model and create in the scope of essence, can make certain deformation or modification to the utility model.

Claims (7)

1, a kind of high-precision GPS differential system, comprise base station device and mobile station apparatus, mobile station apparatus is installed on the mobile vehicle, the stationkeeping of base station device, it is characterized in that, base station device and mobile station apparatus comprise a GPS module respectively, one data transmission module and a message processing module, wherein, two GPS modules connect a gps antenna respectively, be used to gather gps satellite numerical information, the mobile station device processing module is used to receive the satellite digital information that collects, and receives difference information, handle in the lump, finally calculate the positional information of mobile vehicle, the message processing module of base station device is used to receive the satellite digital information that collects, receive the data message of mobile station apparatus, handle in the lump, finish calculus of differences, two data transmission modules are used to transmit the data between mobile station apparatus and the base station device.
2, high-precision GPS differential system as claimed in claim 1 is characterized in that, is provided with wireless transport module between the data transmission module of described base station device and the data transmission module of movement station.
3, high-precision GPS differential system as claimed in claim 1 is characterized in that, described mobile station apparatus also comprises a data memory module, and this module is used to carry out data acquisition and storage.
As claim 1 or 3 high-precision GPS differential systems, it is characterized in that 4, described base station device also comprises a data memory module, this module is used to gather and store status information, positional information and the data acquisition information of mobile station apparatus and base station device.
5, high-precision GPS differential system as claimed in claim 1 is characterized in that, described base station device and mobile station apparatus also comprise a power module respectively, and this module is used to device that required power supply is provided.
6, high-precision GPS differential system as claimed in claim 1, it is characterized in that, described base station device is provided with a real-time display module, this real-time display module is used to show status information, positional information and the data acquisition information of mobile station apparatus and base station device, and the movement locus figure of mobile vehicle is provided simultaneously.
7, high-precision GPS differential system as claimed in claim 4, it is characterized in that, the data memory module of base station device and data processing module after the data memory module of mobile station apparatus is connected a thing, this afterwards the data processing module data of gathering at above-mentioned two devices carry out data-switching, data processing, packing data, data analysis and data readback.
CNU200820110220XU 2008-08-26 2008-08-26 High precision GPS difference system Expired - Fee Related CN201266237Y (en)

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102012516A (en) * 2010-10-26 2011-04-13 上海华测导航技术有限公司 Self-starting reference station and method for performing global position system (GPS) real-time dynamic measurement
CN102243314A (en) * 2011-04-14 2011-11-16 山东大学 Real-time difference measuring apparatus for regular moving boat-carrying base station and working method thereof
CN101614808B (en) * 2009-07-30 2012-04-25 北京北斗星通导航技术股份有限公司 Track test system
CN101667749B (en) * 2009-04-23 2012-08-29 福建省电力有限公司 Electric power field work safe and automatic monitoring system
CN103293535A (en) * 2013-05-24 2013-09-11 北京东方计量测试研究所 Real-time testing system of satellite navigation receiver
CN104386126A (en) * 2014-09-22 2015-03-04 中国北方车辆研究所 Method for determining actual turning radius of tracked vehicle
CN104754729A (en) * 2013-12-27 2015-07-01 上海博泰悦臻网络技术服务有限公司 Navigation positioning method, device and system
CN109752745A (en) * 2019-01-28 2019-05-14 Oppo广东移动通信有限公司 Split type equipment localization method, device, split type equipment and storage medium

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101667749B (en) * 2009-04-23 2012-08-29 福建省电力有限公司 Electric power field work safe and automatic monitoring system
CN101614808B (en) * 2009-07-30 2012-04-25 北京北斗星通导航技术股份有限公司 Track test system
CN102012516A (en) * 2010-10-26 2011-04-13 上海华测导航技术有限公司 Self-starting reference station and method for performing global position system (GPS) real-time dynamic measurement
CN102243314A (en) * 2011-04-14 2011-11-16 山东大学 Real-time difference measuring apparatus for regular moving boat-carrying base station and working method thereof
CN102243314B (en) * 2011-04-14 2013-04-17 山东大学 Real-time difference measuring apparatus for regular moving boat-carrying base station and working method thereof
CN103293535A (en) * 2013-05-24 2013-09-11 北京东方计量测试研究所 Real-time testing system of satellite navigation receiver
CN103293535B (en) * 2013-05-24 2015-11-18 北京东方计量测试研究所 Satellite navigation receiver real-time testing system
CN104754729A (en) * 2013-12-27 2015-07-01 上海博泰悦臻网络技术服务有限公司 Navigation positioning method, device and system
CN104386126A (en) * 2014-09-22 2015-03-04 中国北方车辆研究所 Method for determining actual turning radius of tracked vehicle
CN109752745A (en) * 2019-01-28 2019-05-14 Oppo广东移动通信有限公司 Split type equipment localization method, device, split type equipment and storage medium

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Patentee after: Beijing SDi Science & Technology Co., Ltd.

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