CN104655128A - Indoor and outdoor parallel navigation system applicable to intelligent mobile terminal - Google Patents
Indoor and outdoor parallel navigation system applicable to intelligent mobile terminal Download PDFInfo
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- CN104655128A CN104655128A CN201510105837.7A CN201510105837A CN104655128A CN 104655128 A CN104655128 A CN 104655128A CN 201510105837 A CN201510105837 A CN 201510105837A CN 104655128 A CN104655128 A CN 104655128A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C21/00—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00
- G01C21/005—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00 with correlation of navigation data from several sources, e.g. map or contour matching
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- Automation & Control Theory (AREA)
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Abstract
The invention relates to an indoor and outdoor parallel navigation system applicable to an intelligent mobile terminal. For the system, Beidou/GPS dual-mode positioning is adopted outdoors, and a positioning technique in which 2G/3G wireless signals are combined with indoor maps is adopted indoors. The two modes operate alternatively for omnibearing positioning without the disadvantage that a big Beidou/GPS can be blocked easily by buildings; the indoor and outdoor parallel navigation system has wide popularization and application values.
Description
Technical Field
The invention belongs to the scheme design of an indoor and outdoor navigation system, relates to strategic technologies in multiple fields of integrated circuit technology, software technology, communication technology, embedded systems and the like, and particularly relates to an indoor and outdoor parallel navigation system suitable for an intelligent mobile terminal.
Background
Navigation positioning technology is one of the global popular information industries nowadays, and can be divided into indoor navigation and outdoor navigation. The outdoor navigation technology is also called as satellite navigation technology, is one of three information industries which develop fastest globally, and has very wide application prospects in the aspects of information, traffic, safety defense, disaster prevention and relief, environmental monitoring and the like. At present, in the world, in addition to a global positioning system GPS in the united states, there are GLONASS in russia, a beidou navigation positioning system in China, and a Galileo (Galileo) system capable of realizing multi-system compatibility is planned to be built in the european union.
In the aspect of performance, a receiver formed by a single-frequency satellite navigation receiving chip cannot be correctly positioned due to weak signals in certain specific environments, and the main application field is limited in the civil aspect, so that the market development is limited. The receiver formed by the multi-mode GNSS satellite navigation chip can get rid of the dependence on a single navigation system, improves the reliability, greatly increases the function and the reliability of the receiver on the basis of increasing the chip cost to a minimum, and has wide market application prospect and good social and economic benefits. Multimode receivers would be significantly more cost effective than receivers of a single system. Therefore, multimode compatibility is a necessary direction for the development of satellite navigation receivers.
The navigation systems such as the GPS or the Beidou have advantages in the aspect of outdoor navigation application, but satellite signals are easily shielded by buildings, and if the mobile terminal is not connected with an outdoor antenna, the mobile terminal cannot receive the outdoor satellite signals, so that the defect cannot be overcome even if a multi-mode navigation system is adopted. The wireless communication signal adopted by the mobile phone is transmitted by a nearby base station, is difficult to be shielded by a building, and can be received well even indoors. However, the smart mobile terminals such as mobile phones and the like have communication signals in 2G and 3G modes at the same time, and a small part of the smart mobile terminals have 4G communication signals.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides an indoor and outdoor parallel navigation system suitable for an intelligent mobile terminal. The system can simultaneously receive GPS/Beidou dual-mode signals outdoors, and can accurately perform outdoor positioning by combining with a terminal storage outdoor map; when the satellite signal cannot be received indoors, the system is automatically switched to an indoor positioning scheme to receive the 2G/3G wireless communication signal, and indoor positioning can be achieved through an indoor map stored in the terminal. The scheme can realize accurate indoor and outdoor positioning and has wide popularization and application values.
The invention is realized by the following technical scheme. An indoor and outdoor parallel navigation system suitable for an intelligent mobile terminal is composed of an indoor navigation module, an outdoor navigation module and the mobile terminal. The outdoor navigation module receives and processes the satellite signals and transmits the satellite signals to the mobile terminal to be displayed to a user; the indoor navigation module receives the wireless communication signal of the mobile phone, processes the signal and transmits the processed signal to the mobile terminal to be displayed to a user.
The utility model provides an indoor outer parallel navigation suitable for intelligent Mobile terminal which characterized in that: the method comprises the following steps:
the indoor navigation module: after receiving the wireless communication signal processing of the mobile phone, transmitting the signal to the mobile terminal for displaying to the user;
an outdoor navigation module: after receiving satellite signals and processing, the satellite signals are transmitted to a mobile terminal to be displayed to a user
A mobile terminal: the satellite signal receiving module is used for receiving satellite signals transmitted by the indoor navigation module and the outdoor navigation module; wherein,
the outdoor navigation module comprises a Beidou/GPS dual-mode navigation module and an outdoor map database; the Beidou/GPS dual-mode navigation module receives a Beidou/GPS signal sent by a Beidou/GPS satellite, and the outdoor positioning information is obtained after the signal is processed; mobile terminal combining outdoor map database and outdoor map database
After the position information obtains the visual outdoor position indication, the position information is displayed to a user through a display screen of the mobile terminal;
the indoor navigation module comprises a 2G/3G communication module, a communication positioning module and an indoor map database; the 2G/3G communication module receives the 2G/3G wireless signal transmitted by the base station, processes the signal and transmits the processed signal to the communication positioning module; the communication module processes the signals to obtain indoor positioning information, and the mobile terminal combines an indoor map and the indoor positioning information to obtain a visual indoor position indication and displays the visual indoor position indication to a user through a display screen of the mobile terminal.
In the indoor and outdoor parallel navigation system suitable for the intelligent mobile terminal, the communication positioning module demodulates the 2G/3G signal to obtain an indoor code and a communication code; the indoor code contains indoor position information, and the mobile terminal can perform indoor positioning by combining an indoor map and the indoor code.
Therefore, the invention has the following advantages: the Beidou/GPS dual-mode positioning is adopted, so that outdoor accurate positioning can be realized; indoor positioning can be realized by combining 2G/3G wireless communication signals with an indoor map; the two modes work alternately, so that the all-dimensional positioning can be realized, and the defect that the Beidou/GPS is easy to be blocked by buildings is overcome.
Drawings
FIG. 1 is a system diagram of an indoor and outdoor parallel navigation system.
FIG. 2 is a functional block diagram of the indoor and outdoor parallel navigation system.
Fig. 3 is a functional schematic diagram of an indoor navigation module of the designed indoor and outdoor parallel navigation system.
Detailed description of the preferred embodiments
The technical scheme of the invention is further specifically described by the following embodiments and the accompanying drawings.
Example (b):
in order to clearly and clearly explain the objects, technical solutions and advantages of the present invention, the present invention is further described with reference to the accompanying drawings and examples.
FIG. 1 is a system diagram of an indoor and outdoor parallel navigation system. An indoor and outdoor parallel navigation system suitable for an intelligent mobile terminal is composed of an indoor navigation module, an outdoor navigation module and the mobile terminal. The outdoor navigation module receives and processes the satellite signals and transmits the satellite signals to the mobile terminal to be displayed to a user; the indoor navigation module receives the wireless communication signal of the mobile phone, processes the signal and transmits the processed signal to the mobile terminal to be displayed to a user.
FIG. 2 is a functional block diagram of the designed indoor and outdoor parallel navigation system. The utility model provides an indoor outer parallel navigation which characterized in that suitable for intelligent Mobile terminal: the outdoor navigation module consists of a Beidou/GPS dual-mode navigation module and an outdoor map. The Beidou/GPS dual-mode navigation module receives a Beidou/GPS signal sent by a Beidou/GPS satellite, and the outdoor positioning information is obtained after the signal is processed; and after the mobile terminal obtains a visual outdoor position indication by combining the outdoor map and the outdoor positioning information, the visual outdoor position indication is displayed to a user through a display screen of the mobile terminal.
The utility model provides an indoor outer parallel navigation which characterized in that suitable for intelligent Mobile terminal: the indoor navigation module consists of a 2G/3G communication module, a communication positioning module and an indoor map. The 2G/3G communication module receives the 2G/3G wireless signal transmitted by the base station, processes the signal and transmits the processed signal to the communication positioning module; the communication module processes the signals to obtain indoor positioning information, and the mobile terminal combines an indoor map and the indoor positioning information to obtain a visual indoor position indication and displays the visual indoor position indication to a user through a display screen of the mobile terminal.
Fig. 3 is a functional schematic diagram of an indoor navigation module of the designed indoor and outdoor parallel navigation system. The utility model provides an indoor outer parallel navigation which characterized in that suitable for intelligent Mobile terminal: the communication positioning module of the indoor navigation module demodulates the 2G/3G signal to obtain an indoor code and a communication code; the indoor code contains indoor position information, and the mobile terminal can perform indoor positioning by combining an indoor map and the indoor code.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.
Claims (2)
1. The utility model provides an indoor outer parallel navigation suitable for intelligent Mobile terminal which characterized in that: the method comprises the following steps:
the indoor navigation module: after receiving the wireless communication signal processing of the mobile phone, transmitting the signal to the mobile terminal for displaying to the user;
an outdoor navigation module: after receiving satellite signals and processing, the satellite signals are transmitted to a mobile terminal to be displayed to a user
A mobile terminal: the satellite signal receiving module is used for receiving satellite signals transmitted by the indoor navigation module and the outdoor navigation module; wherein,
the outdoor navigation module comprises a Beidou/GPS dual-mode navigation module and an outdoor map database; the Beidou/GPS dual-mode navigation module receives a Beidou/GPS signal sent by a Beidou/GPS satellite, and the outdoor positioning information is obtained after the signal is processed; mobile terminal combining outdoor map database and outdoor map database
After the position information obtains the visual outdoor position indication, the position information is displayed to a user through a display screen of the mobile terminal;
the indoor navigation module comprises a 2G/3G communication module, a communication positioning module and an indoor map database; the 2G/3G communication module receives the 2G/3G wireless signal transmitted by the base station, processes the signal and transmits the processed signal to the communication positioning module; the communication module processes the signals to obtain indoor positioning information, and the mobile terminal combines an indoor map and the indoor positioning information to obtain a visual indoor position indication and displays the visual indoor position indication to a user through a display screen of the mobile terminal.
2. The indoor and outdoor parallel navigation system suitable for the intelligent mobile terminal according to claim 1, wherein: the communication positioning module demodulates the 2G/3G signal to obtain an indoor code and a communication code; the indoor code contains indoor position information, and the mobile terminal can perform indoor positioning by combining an indoor map and the indoor code.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510105837.7A CN104655128A (en) | 2015-03-11 | 2015-03-11 | Indoor and outdoor parallel navigation system applicable to intelligent mobile terminal |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106448431A (en) * | 2016-08-24 | 2017-02-22 | 电子科技大学 | Mobile phone sensor-based indoor planar graph construction method adopting crowdsourcing mode |
| CN106610498A (en) * | 2015-10-22 | 2017-05-03 | 北京金坤科创技术有限公司 | Embedded intelligent positioning terminal design |
| CN107543552A (en) * | 2016-06-28 | 2018-01-05 | 李艳媚 | Navigation system and method |
| CN109669201A (en) * | 2018-11-13 | 2019-04-23 | 斯沃德教育科技股份有限公司 | It is a kind of based on wearable indoor and outdoor location algorithm |
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