Algorithm and device for judging vehicle driving state by using accelerometer
The invention discloses an algorithm and a device for judging a vehicle driving state by using an accelerometer. The algorithm comprises the following steps: continuously acquiring a first acceleratedspeed vector of a vehicle to be identified collected by a triaxial accelerometer in real time; conti...
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Main Author | |
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Format | Patent |
Language | Chinese English |
Published |
11.09.2018
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Subjects | |
Online Access | Get full text |
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Summary: | The invention discloses an algorithm and a device for judging a vehicle driving state by using an accelerometer. The algorithm comprises the following steps: continuously acquiring a first acceleratedspeed vector of a vehicle to be identified collected by a triaxial accelerometer in real time; continuously calculating a quaternion of a gradual approach expected quaternion in real time, revolvingthe first accelerated speed vector according to the quaternion, wherein the quaternion represents a vehicle posture; performing yaw correction on the revolved accelerated speed vector; comparing the corrected accelerated speed vector with an accelerated speed vector threshold value, according to a comparing result, identifying a current driving behavior of the vehicle to be identified. Because a gradual approach technology is continuously used in a using process, the algorithm is capable of adapting various application scenes better: multiple pavement conditions, such as horizontal, ramp or jolt, and scenes, such as a |
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Bibliography: | Application Number: CN20181323235 |