CN103018760B - Tri-mode positioning and navigation system based on BD-1 (Beidou-1)/BD-2 (Beidou-2)/GPS (global position system) - Google Patents
Tri-mode positioning and navigation system based on BD-1 (Beidou-1)/BD-2 (Beidou-2)/GPS (global position system) Download PDFInfo
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Abstract
The invention relates to a tri-mode positioning and navigation system based on BD-1 (Beidou-1)/BD-2 (Beidou-2)/GPS (global position system). The system comprises an outdoor unit, an indoor unit and cables, wherein the indoor unit is a human-computer interaction interface, and the outdoor unit comprises an antenna module, an integrated service management module, a shell and a mounting flange. The antenna module is arranged above the shell, the integrated service management module is arranged inside the shell, the mounting flange is disposed under the shell, and the four portions are combined mutually into a whole from top to bottom. When in work, the outdoor unit respectively receives signals of the BD-1/BD-2/GPS, simultaneously transmits the signals emitted from the BD-1, and completes the functions of radio frequency management, AD (analog-digital) conversion, baseband processing and positioning resolve, and then sends a result to the indoor unit to achieve a human-computer interaction.
Description
Technical field
The present invention relates to a kind of Position Fixing Navigation System, particularly a kind of Position Fixing Navigation System based on the Big Dipper one/Big Dipper two/GPS tri-pattern.
Background technology
GPS, since it comes out, has fully shown it in navigation, dominance in positioning field, and many fields there occurs revolutionary change due to the appearance of GPS.
Although the gps satellite navigation positioning system of the U.S. can be covering the whole world, realize round-the-clock, round-the-clock navigation, all belong to the external military and control, and GPS provides the positioning service of different accuracy to different brackets user.In military conflict area, the U.S. may consider for number one, closes GPS in some areas.Therefore, although the fund needed for exploitation is huge and the cycle is very long, the global position system of China's develop actively oneself, to break away from the control led the U.S. and serve navigator fix.
In in October, 2000 and Dec, first and second transit satellite that China develops voluntarily---" Beidou navigation test satellite " (abbreviation BeiDou-I satellite) succeeds in sending up lift-off in Xichang, two satellites constitute " Beidou satellite navigation system ", and this is the essential step of China in autonomous satellite navigation field.This system at present the field such as military field, highway communication, transportation by railroad, offshore operation at home played certain effect.But Big Dipper generation navigation positioning system exists certain defect, and namely it adopts active locator meams, make receiver user independently can not calculate the coordinate figure of oneself, and user capacity is limited, positioning precision is not high, easily exposes ownership goal position etc.The Beidou II satellite navigation system of building at present, navigation principle adopts the passive three-dimensional localization principle similar with gps system, and the effective range of satellite constellation is not global, but zonal; The autonomous real-time three-dimensional location of subscriber computer in the certain limit centered by China can be supported.
But the various NAVSTAR already emerged, be mostly single GPS or the navigation of single Big Dipper one Pattern localization, obviously, this is all difficult to be avoided above-mentioned variety of problems in some occasion, and Beidou II is being built, also its product rare on market.Therefore, how the Big Dipper one, the Big Dipper two and GPS Three models being concentrated on and integrally position navigation, is insider's important topic anxious to be resolved.
Summary of the invention
Object of the present invention is exactly all drawbacks and the restriction that overcome gps satellite Position Fixing Navigation System and Big Dipper generation monotype Position Fixing Navigation System, meet the high-quality navigator fix demand that industry highlights day by day, there is provided a kind of reasonable in design, structure is simple, the Position Fixing Navigation System based on the Big Dipper one/Big Dipper two/GPS tri-pattern that can switch flexibly.
In order to achieve the above object, the technical scheme that the present invention takes is:
A kind of Position Fixing Navigation System based on the Big Dipper one/Big Dipper two/GPS tri-pattern, is made up of outdoor unit 1, indoor unit 2 and cable 3, wherein: indoor unit 2 is human-computer interaction interface, outdoor unit 1 includes antenna module 1.1, Multiple Business Management module 1.2, housing 1.3, mounting flange 1.4.And antenna module 1.1 is placed in above housing 1.3, Multiple Business Management module 1.2 is placed in housing 1.3, and mounting flange 1.4 is placed in below housing 1.3, and 4 be combined with each other formation entirety from top to bottom, then whole system is connected to form through cable 3 and indoor unit 2, wherein:
Described antenna module 1.1 is lightning-arrest cap structure, in succession being provided with receiving antenna 1.1.1 and radio frequency power amplification module 1.1.2 from top to down in it, is the radio frequency external interface of whole system, for receiving the Big Dipper one, the Big Dipper two and GPS collect mail number, and send the Big Dipper one and transmit.
Described Multiple Business Management module 1.2 is modular construction, include: ARM flush bonding processor 1.2.1, synchronous dynamic data-carrier store SDRAM1.2.2, storer FLASFH1.2.3 can be wiped by electronics, the double mode baseband processing module 1.2.4 of the special GPS/ Big Dipper two, down-converted module 1.2.5, AD translation circuit module 1.2.6, the Big Dipper one processing module 1.2.7, RS232 serial interface module 1.2.8, radio frequency interface 1.2.9, data output interface 1.2.10, test input interface 1.2.11.This module is core component of the present invention, and Multiple Business Management module (1.2) completes radio frequency processing, AD conversion, Base-Band Processing, the functions such as positioning calculation, and result is sent to indoor unit 2.
Described housing 1.3 is circular cylindrical cavity formula structural member, its top port is provided with O-ring seal 1.3.1, and left side is provided with data output 1.3.2, and right side is provided with debugging interface 1.3.3, bottom is provided with adsorption magnet 1.3.4, for directly outdoor unit 1 being fixed on metal sheet.
Described mounting flange 1.4 is the supplemental component of housing 1.3, for outdoor unit 1 provides reliable fixed form in the occasion needing high stability.
Indoor unit 2 receives result of calculation that outdoor unit 1 sends here and is shown on display screen, realizes man-machine interaction work.
Working method of the present invention is:
Multiple Business Management module 1.2 is sent into by radio frequency interface 1.2.9.1 after antenna module 1.1 receives Big Dipper binary signal, corresponding intermediate-freuqncy signal is become after down-converted module 1.2.6, then after AD conversion module 1.2.5, be converted to digital signal, digital signal obtains pseudo-range information needed for positioning calculation and textual information after the double mode baseband processing module 1.2.4 of the special GPS/ Big Dipper two resolves.
Multiple Business Management module 1.2 is sent into by radio frequency interface 1.2.9.2 after antenna module 1.1 receives gps signal, corresponding intermediate-freuqncy signal is become after down-converted module 1.2.6, then after AD conversion module 1.2.5, be converted to digital signal, digital signal obtains pseudo-range information needed for positioning calculation and textual information after the double mode baseband processing module 1.2.4 of the special GPS/ Big Dipper two resolves.
Antenna module 1.1 receives after the Big Dipper one is collected mail number and it is sent into the Big Dipper one processing module 1.2.7 by radio frequency interface 1.2.9.3, transmitting needed for the Big Dipper one processing module 1.2.7 locates is sent to antenna module 1.1 by radio frequency interface 1.2.9.3 again and is amplified and launch, and result is also sent into embedded system by the Big Dipper one processing module 1.2.7 complete independently Big Dipper generation positioning function.
When the present invention works, embedded system can be formed by electronics erasing storer 1.2.3 by ARM flush bonding processor 1.2.1, synchronous dynamic data-carrier store SDRAM1.2.2 and FLASH, receive pseudorange and textual information that the double mode baseband processing module 1.2.4 of the special GPS/ Big Dipper two sends, complete the data processing work such as positioning calculation, result is directly sent into ARM flush bonding processor 1.2.1 by Big Dipper generation unit, and last ARM flush bonding processor 1.2.1 needs result by being sent to data output interface 1.2.10 after RS232 serial interface module 1.2.8 driving by system.Testing radio frequency signal enters Multiple Business Management module by test input interface 1.2.11 and replaces aerial signal, realizes system debug.
The present invention based on spread spectrum technic and satnav velocity measuring technique, supports multiple location navigation system, achieves high receiving sensitivity, high position precision on circuit.General structure is set out according to actual service condition, is outdoor unit and indoor unit, had both ensure that the high sensitivity of receiving ability by system divides, in turn ensure that man-machine interface is friendly, reliability is high, easy to operate.
Accompanying drawing explanation
Fig. 1 is present system connection diagram,
Fig. 2 is present system electricity theory diagram,
Fig. 3 is outdoor unit one-piece construction schematic diagram of the present invention,
Fig. 4 is outdoor unit Multiple Business Management module electrical schematic diagram of the present invention,
Fig. 5 is outdoor unit Multiple Business Management module printed circuit board layout of the present invention.
Symbol description in figure:
1.1 is antenna module,
1.1.1 be antenna,
1.1.2 be radio frequency power amplification module;
1.2 is Multiple Business Management module,
1.2.1 be ARM flush bonding processor,
1.2.2 be synchronous dynamic data-carrier store SDRAM,
1.2.3 for FLASH can wipe storer by electronics,
1.2.4 be the double mode baseband processing module of the special GPS/ Big Dipper two,
1.2.5 be AD conversion module,
1.2.6 be down-converted module,
1.2.7 be the Big Dipper one processing module,
1.2.8 be RS232 serial interface module,
1.2.9 be radio frequency interface module,
1.2.9.1 be the Big Dipper two radio frequency interface,
1.2.9.2 be GPS radio frequency interface,
1.2.9.3 be the Big Dipper one radio frequency interface,
1.2.10 be data output interface,
1.2.11 be test input interface;
1.3 be housing,
1.3.1 be O-ring seal,
1.3.2 data output interface,
1.3.3 be debugging input interface,
1.3.4 adsorption magnet;
1.4 is mounting flange;
2 is indoor unit;
3 is cable.
Embodiment
Referring to shown in Fig. 1 to Fig. 5, is the specific embodiment of the invention.
As can be seen from Fig. 1 to Fig. 3:
The present invention is made up of outdoor unit 1, indoor unit 2 and cable 3, wherein: indoor unit 2 is human-computer interaction interface, and outdoor unit 1 includes antenna module 1.1, Multiple Business Management module 1.2, housing 1.3, mounting flange 1.4.And antenna module 1.1 is placed in above housing, Multiple Business Management module 1.2 is placed in one in housing 1.3, and mounting flange 1.4 is placed in below housing 1.3, and 4 be combined with each other formation entirety from top to bottom, connects to form whole system through cable 3 and indoor unit 1.
As can be seen from Figure 4:
Described Multiple Business Management module 1.2 is modular construction, include: ARM flush bonding processor 1.2.1, synchronous dynamic data-carrier store SDRAM1.2.2, can electronics erasing storer FLASFH1.2.3, the double mode baseband processing module 1.2.4 of the special GPS/ Big Dipper two, AD conversion module 1.2.5, down-converted module 1.2.6, the Big Dipper one processing module 1.2.7, RS232 serial interface module 1.2.8, radio frequency interface 1.2.9, data output interface 1.2.10, test input interface 1.2.11.Wherein:
45 to 89 pin of described ARM flush bonding processor 1.2.1 is connected with the 3 to 47 pin of synchronous dynamic data-carrier store SDRAM1.2.2 successively respectively; Its 92 to 131 pin can be connected by electronics the 2 to 41 pin of wiping storer 1.2.3 with FLASH successively respectively; Its 14 to 17 pin, is connected with the 8 to 11 pin of the Big Dipper one processing module 1.2.7 successively respectively; Its 22 to 45 pin is connected with the 12 to 35 pin of the double mode baseband processing module 1.2.4 of the special GPS/ Big Dipper two successively respectively; Its 2 to 6 pin is connected with the 3 to 7 pin of RS232 serial interface module 1.2.8 successively respectively.ARM flush bonding processor 1.2.1 receives the data from the Big Dipper one processing module 1.2.7 and the double mode baseband processing module 1.2.4 of the special GPS/ Big Dipper two, and the result after computing is delivered to RS232 serial interface module.
Described down-converted module 1.2.6 the 34th, 36 pin successively respectively with the 4th of AD conversion module 1.2.5,8 pin are connected; Its 3rd, 5,7,9 pin successively respectively with the 1st pin of the 1st pin of the Big Dipper two radio frequency interface 1.2.9.1, GPS radio frequency interface 1.2.9.2, test input interface 1.2.11 the 1st, 2 pin are connected; Its 2nd pin exports and is connected with the 2nd pin of AD conversion module 1.2.5 and the 11st pin of the double mode baseband processing module 1.2.4 of the special GPS/ Big Dipper two.This unit receives from the Big Dipper binary signal of radio frequency interface 1.2.9.1 and the gps signal of 1.2.9.2, and is converted into intermediate-freuqncy signal and delivers to AD conversion module 1.2.5.
16 to 19 pin of described AD conversion module 1.2.5 is connected with the 37 to 40 pin of the double mode baseband processing module 1.2.4 of the special GPS/ Big Dipper two successively respectively; Its 21 to 24 pin is connected with the 41 to 44 pin of the double mode baseband processing module 1.2.4 of the special GPS/ Big Dipper two successively respectively.Intermediate-freuqncy signal from down-converted module 1.2.6 is converted to digital signal and sends into the double mode baseband processing module 1.2.4 of the special GPS/ Big Dipper two by this unit.
The described Big Dipper one processing module 1.2.7 the 1st, 2,5,6 pin successively respectively with the 1st of Big Dipper generation radio frequency interface 1.2.9.3,2 pin, the 3rd, 4 pin of test input interface 1.2.11 connect.This unit, by radio frequency interface 1.2.9.3 receiving and transmitting signal, realizes positioning calculation function, and result is sent to ARM flush bonding processor 1.2.1.
7th pin of described data output interface 1.2.10 is connected with the 9th pin of the double mode baseband processing module 1.2.4 of the special GPS/ Big Dipper two, and its 8 to 11 pin is connected with the 1 to 4 pin of RS232 serial interface module 1.2.8 successively respectively.The pps pulse per second signal that double mode for the special GPS/ Big Dipper two baseband processing module 1.2.4 sends by this unit and the data message that RS232 serial interface module 1.2.8 sends are sent to data output interface 1.2.10, are the external interfaces of whole overall treatment unit.
As can be seen from Figure 5:
Described Multiple Business Management module 1.2 is modular construction, and be disposed with from left to right above it: the 1st pin of the 1st pin of the Big Dipper two radio frequency interface 1.2.9.1, the 1st pin of test input interface 1.2.11, GPS radio frequency interface 1.2.9.2, the 2nd pin of test input interface 1.2.11, the 1st pin of the Big Dipper one radio frequency interface 1.2.9.3, the 3rd pin of test input interface 1.2.11, totally 6 radio frequency interfaces; Its upper right side is provided with the 2nd pin of the Big Dipper one radio frequency interface 1.2.9.3, the 4th pin of test input interface 1.2.11 from top to bottom; Data output interface 1.2.10 is arranged on circuit board lower outer, and all the other each modules need evenly to be arranged in printed board according to treatment scheme.The mode all modules being focused on a printed circuit board improves the integrated level of system and the terseness of structure.
Be worth special instruction, in the present invention, ARM flush bonding processor 1.2.1 model to be the model of S3C2440, SDRAM1.2.2 be IS42S32400, FLASH can the model of electronics erasing storer 1.2.3 be S29GL128; All the other each elements are technical grade product, and housing parts is finishing cast member.
Above embodiment, is only and technical characteristic of the present invention and embodiment is described, its object is to enable person skilled in art understand content of the present invention and concrete enforcement.Thus, the conversion that all designs according to the present invention are made and modification, be all included in right of the present invention, file an application according to Patent Law.
Claims (6)
1., based on a Position Fixing Navigation System for the Big Dipper one/Big Dipper two/GPS tri-pattern, include outdoor unit (1), indoor unit (2) and cable (3), wherein:
A, described outdoor unit (1) include again antenna module (1.1), Multiple Business Management module (1.2), housing (1.3), mounting flange (1.4); And antenna module (1.1) is placed in housing (1.3) top, Multiple Business Management module (1.2) is placed in housing (1.3), mounting flange (1.4) is placed in housing (1.3) below, 4 be combined with each other formation entirety from top to bottom, then connect to form whole system through cable (3) and indoor unit (2);
B, described antenna module (1.1) are lightning-arrest cap structure, are in succession provided with receiving antenna (1.1.1) and radio frequency power amplification module (1.1.2) in it from top to down;
C, described housing (1.3) are circular cylindrical cavity formula structural member, its top port is provided with O-ring seal (1.3.1), left side is provided with data output (1.3.2), right side is provided with debugging interface (1.3.3), and bottom is provided with adsorption magnet (1.3.4); It is characterized in that:
Described Multiple Business Management module (1.2) is modular construction, includes: ARM flush bonding processor (1.2.1), synchronous dynamic data-carrier store SDRAM (1.2.2), FLASFH can wipe storer (1.2.3) by electronics, the double mode baseband processing module of the special GPS/ Big Dipper two (1.2.4), AD conversion module (1.2.5), down-converted module (1.2.6), the Big Dipper one processing module (1.2.7), RS232 serial interface module (1.2.8), radio frequency interface (1.2.9), data output interface (1.2.10) and test input interface (1.2.11) and the top of described Multiple Business Management module (1.2) are disposed with from left to right: the 1st pin of the Big Dipper two radio frequency interface (1.2.9.1), 1st pin of test input interface (1.2.11), 1st pin of GPS radio frequency interface (1.2.9.2), 2nd pin of test input interface (1.2.11), 1st pin of the Big Dipper one radio frequency interface (1.2.9.3), 3rd pin of test input interface (1.2.11), totally 6 radio frequency interfaces, its upper right side is provided with the 2nd pin of the Big Dipper one radio frequency interface (1.2.9.3), the 4th pin of test input interface (1.2.11) from top to bottom, data output interface (1.2.10) is arranged on printed board lower outer, all the other each module installation are in printed board, Multiple Business Management module (1.2) completes radio frequency processing, AD conversion, Base-Band Processing, the functions such as positioning calculation, and result is sent to indoor unit (2).
2., as claimed in claim 1 based on the Position Fixing Navigation System of the Big Dipper one/Big Dipper two/GPS tri-pattern, it is characterized in that:
45 to 89 pin of described ARM flush bonding processor (1.2.1) is connected with the 3 to 47 pin of synchronous dynamic data-carrier store SDRAM (1.2.2) successively respectively; Its 92 to 131 pin can be connected by electronics the 2 to 41 pin of wiping storer (1.2.3) with FLASH successively respectively; Its 14 to 17 pin, is connected with the 8 to 11 pin of the Big Dipper one processing module (1.2.7) successively respectively; Its 22 to 45 pin is connected with the 12 to 35 pin of the double mode baseband processing module of the special GPS/ Big Dipper two (1.2.4) successively respectively; Its 2 to 6 pin is connected with the 3 to 7 pin of RS232 serial interface module (1.2.8) successively respectively.
3., as claimed in claim 1 based on the Position Fixing Navigation System of the Big Dipper one/Big Dipper two/GPS tri-pattern, it is characterized in that:
Described down-converted module (1.2.6) the 34th, 36 pin successively respectively with the 4th of AD conversion module (1.2.5), 8 pin are connected; Its 3rd, 5,7,9 pin successively respectively with the 1st pin of the 1st pin of the Big Dipper two radio frequency interface (1.2.9.1), GPS radio frequency interface (1.2.9.2), test input interface (1.2.11) the 1st, 2 pin are connected; Its 2nd pin exports and is connected with the 2nd pin of AD conversion module (1.2.5) and the 11st pin of the double mode baseband processing module of the special GPS/ Big Dipper two (1.2.4).
4., as claimed in claim 1 based on the Position Fixing Navigation System of the Big Dipper one/Big Dipper two/GPS tri-pattern, it is characterized in that:
16 to 19 pin of described AD conversion module (1.2.5) is connected with the 37 to 40 pin of the double mode baseband processing module of the special GPS/ Big Dipper two (1.2.4) successively respectively; Its 21 to 24 pin is connected with the 41 to 44 pin of the double mode baseband processing module of the special GPS/ Big Dipper two (1.2.4) successively respectively.
5., as claimed in claim 1 based on the Position Fixing Navigation System of the Big Dipper one/Big Dipper two/GPS tri-pattern, it is characterized in that:
The described Big Dipper one processing module (1.2.7) the 1st, 2,5,6 pin successively respectively with the 1st of the Big Dipper one radio frequency interface (1.2.9.3), 2 pin, the 3rd, 4 pin of test input interface (1.2.11) connect.
6., as claimed in claim 1 based on the Position Fixing Navigation System of the Big Dipper one/Big Dipper two/GPS tri-pattern, it is characterized in that:
7th pin of described data output interface (1.2.10) is connected with the 9th pin of the double mode baseband processing module of the special GPS/ Big Dipper two (1.2.4), and the 8 to 11 pin of data output interface (1.2.10) is connected with the 1 to 4 pin of RS232 serial interface module (1.2.8) successively respectively.
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| CN103278831B (en) * | 2013-05-10 | 2016-01-20 | 江苏省交通规划设计院股份有限公司 | A kind of multi-system signal detection device based on the Big Dipper and changing method thereof |
| CN103487818A (en) * | 2013-09-25 | 2014-01-01 | 上海旦迪电子科技有限公司 | Beidou satellite navigation intelligent receiver |
| CN103926593A (en) * | 2014-04-25 | 2014-07-16 | 株洲时代日望信息科技有限公司 | Big Dipper positioning and communication integrated terminal based on locomotive security |
| CN105306898A (en) * | 2015-10-27 | 2016-02-03 | 刘志海 | Transport cart monitoring system based on Beidou satellite navigation |
| US10270523B2 (en) * | 2017-06-21 | 2019-04-23 | Blue Digs LLC | Satellite terminal system with wireless link |
| CN114019888B (en) * | 2022-01-07 | 2022-07-12 | 智道网联科技(北京)有限公司 | Communication control circuit and method for vehicle-mounted device, vehicle-mounted device and vehicle |
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