Vehicle-mounted integrated navigation method based on radio frequency identification

A radio frequency identification and integrated navigation technology, used in navigation, surveying and navigation, road network navigator and other directions, can solve problems such as being unsuitable for long-term navigation, affecting odometers, etc., to meet the needs of high-precision positioning, improve positioning accuracy, Effect of Position Error Suppression

Inactive Publication Date: 2020-06-09
QINGDAO HUANGHAI UNIV
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  • Application Information

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Problems solved by technology

It is recorded in the literature that the combination of inertial navigation system and odometer (OD) for dead reckoning can suppress the error divergence to a certain extent, but it is not suitable because the wheels will spin and slip during the driving process, which will affect the odometer. long time navigation

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  • Vehicle-mounted integrated navigation method based on radio frequency identification
  • Vehicle-mounted integrated navigation method based on radio frequency identification
  • Vehicle-mounted integrated navigation method based on radio frequency identification

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Embodiment Construction

[0047] The specific implementation of the present invention will be further described below in conjunction with the examples.

[0048] Global Position System, GPS, Global Positioning System.

[0049] Inertia Navigation System, INS, inertial navigation system.

[0050] RFID, radio frequency identification.

[0051]The invention discloses a vehicle integrated navigation method based on radio frequency identification, which relates to the technical field of positioning of unmanned transport vehicles. The vehicle integrated navigation system based on radio frequency identification can work in the single inertial navigation positioning mode, without RFID-assisted GPS + inertial navigation mode + RFID-assisted positioning mode, among which the RFID-assisted positioning mode has the highest accuracy. When there is no RFID assistance, based on the global positioning system and the inertial navigation system, the difference between the position and the velocity calculated by the glob...

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Abstract

The invention discloses a vehicle-mounted integrated navigation method based on radio frequency identification, and relates to the technical field of the positioning of unmanned transport vehicles. The method can work in an independent inertial navigation positioning mode and a no-RFID assistance GPS + inertial navigation mode + RFID auxiliary positioning mode, and the RFID auxiliary positioning mode has the highest precision. In no-RFID assistance time, based on a global positioning system and an inertial navigation system, the difference of positions and speeds calculated by the global positioning system and the inertial navigation system is used as the input of a Kalman filter; an estimated value of a navigation error parameter is obtained through the Kalman filter; the output of the inertial navigation system is corrected by using the estimated value, the output parameters of a vehicle-mounted integrated navigation system based on GPS + inertial navigation are finally obtained, andwhen RFID exists, the position information calculated by the GPS in the integrated navigation system is corrected by using the RFID information by using the characteristics of radio frequency identification so as to achieve the effect of auxiliary positioning.

Description

technical field [0001] The invention relates to the technical field of positioning of an unmanned transport vehicle, in particular to a vehicle integrated navigation method based on radio frequency identification. Background technique [0002] At present, some factories have added various modern technologies in the process of production, assembly and transportation to realize the intelligentization of factories, among which unmanned transportation is an important part of intelligent factories. And with the development of computer, the appearance of various advanced navigation equipment provides conditions for the application of integrated navigation system in engineering. The combined system of the Global Position System (GPS) and the Inertia Navigation System (INS) is the most widely used in engineering applications because it has many advantages such as good anti-interference, strong autonomy, and high positioning accuracy. However, in practical applications, when the unm...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01C21/28G01C21/16G01S19/47G01S19/46G01S19/40G06K7/00
CPCG01C21/165G01C21/28G01S19/40G01S19/46G01S19/47G06K7/0008
Inventor 刘培学闫东徐辉刘纪新董丽姜宝华曹爱霞冯飞陈玉杰赵梅莲
Owner QINGDAO HUANGHAI UNIV
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