Microminiature personal combined navigation system as well as navigating and positioning method thereof

An integrated navigation system and integrated navigation technology are applied in the structural design of the personal integrated navigation system and the field of navigation and positioning. Positioning, improving performance, mitigating effects of electromagnetic interference

Inactive Publication Date: 2012-05-09
NANJING UNIV OF SCI & TECH
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  • Application Information

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Problems solved by technology

[0006] None of the above researches on personal navigation technology can achieve long-term continuous, real-time full-parameter navigation of attitude, speed, and position in complex indoor and outdoor electromagnetic environments.

Method used

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  • Microminiature personal combined navigation system as well as navigating and positioning method thereof
  • Microminiature personal combined navigation system as well as navigating and positioning method thereof
  • Microminiature personal combined navigation system as well as navigating and positioning method thereof

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Embodiment Construction

[0022] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0023] The present invention aims to install MEMSIMU, satellite navigation receiver, Doppler speedometer, barometric altimeter and other equipment in portable personal equipment, to explore a new way of personal portable navigation and positioning, and to serve pedestrians, operators, combat soldiers, rescuers, etc. Provide real-time, accurate and complete navigation and positioning information.

[0024] The present invention is a miniature personal combined navigation system. The combined navigation system is composed of a sub-system installed on the foot of the human body and a sub-system installed on the torso. The foot part system includes MEMS IMU1, magnetometer 2 and the first communication module 3. The azimuth axis of the magnetometer coincides with the azimuth axis of the MEMS IMU and is installed, and its output ends are respectively connected to th...

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Abstract

The invention discloses a microminiature personal combined navigation system as well as a navigating and positioning method thereof. The system is composed of a subsystem installed on the foot part of a human body and a subsystem installed on the trunk position, wherein the subsystem installed on the foot part comprises an MEMS IMU (Micro-electromechanical Systems Inertial Measurement Unit), a magnetometer and a communication module; and the subsystem installed on the trunk position comprises a satellite navigation receiver, a Doppler velometer, an atmospheric pressure altimeter, a communication module and a microminiature navigation computer. The positioning method comprises the following steps of: collecting the MEMS IMU signal; modeling and correcting the random error of a gyroscope and an accelerometer; initially aligning an MEMS inertial navigation system; resolving strapdown inertial navigation, and correcting zero speed; carrying out combined navigation of the MEMS inertial navigation system/ satellite navigation receiver/ the Doppler velometer/ the magnetometer/ and the atmospheric pressure altimeter; and displaying the navigation result in real time. The microminiature individual combined navigation system is convenient to individually carry, individual real-time gesture fixing, velocity measurement and positioning can be realized, and whole and precise real-time navigation positioning information can be provided for pedestrians, operating personnel, soldiers, rescue workers and the like in the complex electromagnetic environment.

Description

technical field [0001] The invention belongs to the field of inertial and integrated navigation, in particular to a structural design of a personal integrated navigation system based on MEMS inertial sensors and other auxiliary navigation devices and a navigation and positioning method thereof. Background technique [0002] With the rapid development of navigation and positioning technology, personal navigation and positioning has become an important branch of navigation and positioning technology. In recent years, with the continuous expansion of the application environment, new requirements have been put forward for the performance and environmental adaptability of personal navigation and positioning technology. [0003] At present, most of the relatively mature personal navigation and positioning solutions are based on the satellite navigation system to realize the positioning function. In the technical soldier equipment plan, the satellite navigation system is used to p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01C21/00G01C25/00
Inventor 钱伟行朱欣华苏岩
Owner NANJING UNIV OF SCI & TECH
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