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A vehicle positioning integrity monitoring method based on wireless information interaction

A technology of integrity monitoring and vehicle positioning, applied in the field of Internet of Vehicles, can solve problems such as increasing system costs and limiting the number of visible satellites, and achieve the effects of improving applicability, realizing continuity and availability, and promoting economy

Active Publication Date: 2017-04-19
BEIJING JIAOTONG UNIV
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Problems solved by technology

However, the conventional combination method does not fully consider the adverse impact that the fault or abnormality of the navigation satellite may have on the vehicle positioning performance. This restricts the number of visible satellites, and needs to add special sensors and processing equipment in the vehicle positioning device, which not only increases the system cost to a certain extent, but also does not fully use multi-source information for autonomous monitoring of integrity

Method used

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  • A vehicle positioning integrity monitoring method based on wireless information interaction
  • A vehicle positioning integrity monitoring method based on wireless information interaction
  • A vehicle positioning integrity monitoring method based on wireless information interaction

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Embodiment Construction

[0035] The technical solutions of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0036] First assume that a certain mobile vehicle Veh in the Internet of Vehicles 0 (this vehicle) (equipped with a satellite positioning receiver) and N adjacent vehicles (defined as connected to the Internet of Vehicles and Veh 0 Adjacent vehicles are adjacent vehicles, and N adjacent vehicles are denoted as Veh 1 、Veh 2 ,..., Veh N ) has established a wireless link through the DSRC transmission unit (that is, each vehicle in the Internet of Vehicles is equipped with a DSRC transmission unit), such as figure 1 A vehicle positioning integrity monitoring method based on wireless information interaction is shown, which specifically includes the following steps:

[0037] S1: Veh 0 Periodically receive and analyze the number of visible satellites n, each visible satellite (s 1 ,s 2 ,...,s n ) position {(Xs 1 , ...

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Abstract

The invention provides a vehicle localization integrity monitoring method based on wireless information interaction. The method includes that a vehicle receives and analyzes observation information of a navigational satellite through a satellite positioning receiver, an adjacent vehicle state information packet of vehicle networking is received and analyzed through a dedicated short range communication (DSRC) transmission unit that is carried by the vehicle, overall PL of the vehicle are determined according to the navigational satellite observation information and the adjacent vehicle state information packet, integrity state is evaluated according to the overall PL and AL of vehicle networking of the vehicle, and an adjusting scheme of a positioning structure of the vehicle is determined according to an evaluated result of the integrity state. A moving adjacent vehicle node is used as a reference target, observation information of automatic integrity monitoring that is implemented by the vehicle-mounted satellite positioning receiver is extended, and thereby, requirements of integrity monitoring for satellite visibility conditions can be lowered.

Description

technical field [0001] The invention relates to the technical field of the Internet of Vehicles of an intelligent transportation system, in particular to a vehicle positioning integrity monitoring method based on wireless information interaction. Background technique [0002] With the rapid development and application of wireless information transmission technology under mobile conditions, wireless transmission technology represented by DSRC (Dedicated Short Range Communication) technology has greatly promoted the modernization process of intelligent transportation systems. The establishment of a closer collaborative relationship between vehicles, road infrastructure, and traffic service users has gradually become an important development direction for future intelligent transportation systems. [0003] The basic status information of the vehicle is the key basis for realizing many functions of the Internet of Vehicles, especially for applications directly related to vehicle...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01S19/23G01S19/20
CPCG01S19/20G01S19/23
Inventor 刘江蔡伯根王剑上官伟陈华展伍玺
Owner BEIJING JIAOTONG UNIV
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