Vehicle-mounted inertial navigation system

An inertial navigation system and vehicle technology, applied to road network navigators, navigation through speed/acceleration measurement, etc., can solve the problem that the positioning system cannot judge the vehicle height information, cannot enhance the driver's experience, and cannot send alarms related to the target. Information and other issues to achieve the effect of organization simplicity
CN104296744AInactive Publication Date: 2015-01-21JIAXING MICROELECTRONICS & SYST ENG CENT CHINESE ACADEMY OF SCI
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Patent Information

Authority / Receiving Office
CN Β· China
Current Assignee / Owner
JIAXING MICROELECTRONICS & SYST ENG CENT CHINESE ACADEMY OF SCI
Publication Date
2015-01-21
Estimated Expiration
Not applicable Β· inactive patent

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Abstract

The invention discloses a vehicle-mounted inertial navigation system. The vehicle-mounted inertial navigation system comprises a pressure altitude sensor, a milemeter, an acceleration sensor, an image acquisition module, a control module, a touch display module, an audio module and a communication module, wherein a plurality of interrupt response modules, an I2C bus interface module, a serial port communication interface module and a data input-output module are arranged inside the control module; the milemeter is connected with the interrupt response modules of the control module; the pressure altitude sensor is connected with the control module by virtue of the I2C bus interface module; the communication module is connected with the control module by virtue of the serial port communication interface module; and the acceleration sensor, the image acquisition module, the touch display module and the audio module are connected with the control module by virtue of the data input-output module. The vehicle-mounted inertial navigation system is capable of providing three-dimensional position, speed and track data and has the assistance of the characteristics of driver eye-closing caution, impact caution, border crossing caution, automatic cooperation of near interest points, and the like.
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Description

technical field

[0001] The present invention relates to the field of vehicle navigation, in particular to a vehicle navigation system capable of providing three-dimensional position, speed and track data, supplemented by driver eye-closed warnings, collision warnings, boundary-crossing warnings and automatic matching of nearby points of interest. Background technique

[0002] At present, the vehicle inertial navigation positioning methods can only assume that the vehicle is driving on a plane, so the obtained results are all based on the positioning results in the plane Cartesian coordinate system. In a real application environment, if the height of the vehicle changes, such as going uphill or downhill, driving into or out of a viaduct, etc., the positioning system cannot judge the height information of the vehicle and cannot accurately guide the vehicle's driving path. As a result, the quality of inertial navigation positioning is greatly affected. In addition, fatigue dri...

Claims

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