Rollover warning method and device based on three-axis acceleration sensor

A shaft acceleration and sensor technology, applied in the field of vehicles, can solve the problems of complex rollover alarm system and method, high implementation cost, etc., and achieve the effects of timely and accurate alarm, accurate and simple judgment method, and strong practicability

Active Publication Date: 2017-03-01
SHENZHEN SEG SCI NAVIGATIONS CO LTD
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AI Technical Summary

Problems solved by technology

[0004] Aiming at the problems that the existing vehicle rollover alarm system and method are complex and costly to implement, the present invention proposes a timely, accurate and simple rollover alarm method and device based on a three-axis acceleration sensor

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  • Rollover warning method and device based on three-axis acceleration sensor

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Embodiment Construction

[0046] The technical problem to be solved by the present invention is: the rollover alarm system is installed on the current vehicles, but the existing rollover alarm system uses too many sensing units, which is difficult to install and realize, and the cost is high; in addition, the market There is also a rollover alarm device based on a three-axis acceleration sensor, which relies on detecting the change in the acceleration of the vehicle and the normal acceleration when a fault occurs, and according to the historical characteristics of the duration, direction, magnitude and change of the change , to judge whether the vehicle rolls over, this method of judging the rollover of the vehicle is more complicated. The technical idea proposed by the present invention to solve this technical problem is: install a three-axis acceleration sensor on the vehicle; rollover state.

[0047] In order to facilitate those skilled in the art to understand and implement the present invention, ...

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Abstract

The invention discloses a rollover warning method and device based on a three-axis acceleration sensor. The three-axis acceleration sensor is fixedly installed on a vehicle. The rollover warning method includes the following steps that a rollover inclination angle threshold is obtained in advance; an x-axis inclination angle deviant deltax, a y-axis inclination angle deviant deltay and a z-axis inclination angle deviant deltaz of the three-axis acceleration sensor are calculated; whether deltax, deltay and deltaz are larger than the rollover inclination angle threshold or not is judged, if any one of deltax, deltay and deltaz is larger than the rollover inclination angle threshold, it is judged that the vehicle rolls over; when it is judged that the vehicle rolls over, a warning signal is sent out. Whether the vehicle rolls over is determined according to the state of the rolled-over vehicle, and the judgment method is accurate and simple. Therefore, the rollover warning method and device are timely and accurate in warning and high in practicality.

Description

technical field [0001] The invention relates to the field of vehicles, in particular to a rollover alarm method and device based on a three-axis acceleration sensor. Background technique [0002] With the rapid development of our country's economy, the number of vehicles in our country has increased significantly. On the one hand, the increase in vehicles has brought convenience to people's travel, but it has also brought some safety hazards. Timely detection and handling of traffic accidents is of great significance to the protection of people's lives and property. [0003] With the advancement of science and technology, rollover alarm systems are installed on vehicles now, but the existing rollover alarm systems use too many sensing units, which are difficult to install and realize, and costly; in addition, there are also rollover alarm systems based on The rollover alarm device of the three-axis acceleration sensor, which relies on detecting the change in the acceleratio...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60Q9/00G08B25/01G08B25/10
Inventor 左国才
Owner SHENZHEN SEG SCI NAVIGATIONS CO LTD
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