Vehicle collision-proof network early-warning method and device and confirmatory experiment platform

An anti-collision and network technology, applied to signal devices, headlights, motor vehicles, etc., can solve the problems of limited camera function, high camera cost, and camera dead angle, and achieve small size, accurate location information, and easy installation on the vehicle Effect

Inactive Publication Date: 2015-04-29
XI AN JIAOTONG UNIV
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Problems solved by technology

However, the camera image is limited when the road is curved or the light is not good. Even in an open environment, there are dead spots in the camera. If an omnidirectional camera is used, the camera cost will be high; radar ranging can only obtain a specific The surrounding environment of the direction, and the cost of the radar ranging method is also very high

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  • Vehicle collision-proof network early-warning method and device and confirmatory experiment platform
  • Vehicle collision-proof network early-warning method and device and confirmatory experiment platform
  • Vehicle collision-proof network early-warning method and device and confirmatory experiment platform

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Embodiment Construction

[0038] The implementation of the present invention will be described in detail below in conjunction with the drawings and examples.

[0039] The network system of the automobile anti-collision network early warning method of the present invention is as figure 1 As shown, the Beidou 2+GPS dual-mode unit is mainly used to measure the vehicle speed, acceleration and position information, and then run related algorithms to judge the possibility of collision.

[0040] Existing Beidou 2+GPS dual-mode unit, the speed accuracy of the module is 0.1 / s, and the acceleration tracking accuracy is 0.1m / s 2 ,1pps accuracy is less than 15ns, moving speed is less than 515m / s, moving acceleration is less than 4G, height is less than 18,000m, output frequency range is 1Hz-10Hz, horizontal dynamic positioning accuracy can reach up to 2.5m, which basically meets the needs of real-time positioning of expressway vehicles. With the upgrade of the third-generation global positioning system, there wil...

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Abstract

The invention relates to a vehicle collision-proof network early-warning method. The vehicle collision-proof network early-warning method comprises the following steps of measuring vehicle speed, acceleration and position information and storing the information; receiving location information of surrounding vehicles by a wireless mode and transmitting self-localization information outwards; displaying relative positions of the current vehicle and the surrounding vehicles on a display device of a current vehicle; calculating a distance between the current vehicle and each surrounding vehicle and judging whether the current vehicle has a collision danger by combining the speeds and the accelerations of the current vehicle and the surrounding vehicles; if collision danger exists, giving an alarm to a driver of the current vehicle in a voice manner. In the meantime, the invention provides an early warning algorithm of a vehicle under four circumstances, vehicle rear-end early-warning, overtaking early-warning, blind point early-warning and crossroad early-warning and provides a corresponding collision-proof network early-warning device and a confirmatory experiment platform.

Description

technical field [0001] The invention belongs to the technical field of automobile safety, and in particular relates to an automobile anti-collision network early warning method and device and a verification experiment platform. Background technique [0002] In the traditional field of automobile safety technology, it is generally used to obtain vehicle information of the surrounding environment of the automobile through camera images or radar ranging, and to judge whether the vehicle is in danger of collision through safety algorithms, and to give early warning to the driver in case of danger. However, the camera image is limited when the road is curved or the light is not good. Even in an open environment, there are dead spots in the camera. If an omnidirectional camera is used, the camera cost will be high; radar ranging can only obtain a specific The surrounding environment of the direction, and the cost of the radar ranging method is also very high. Contents of the inv...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60R21/00B62D65/00
CPCB60Q9/008B60Q2300/11B60Q2300/114B60Q2300/14
Inventor 韩九强邵月刘俊郑辑光刘瑞玲
Owner XI AN JIAOTONG UNIV
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