Patent ID: 8285477
Filing Date: 2012-10-09
Classification: B60W

Abstract:
1. A detection method for preventing an automobile from colliding, applied to a controlled automobile, comprising the following steps of: (a) providing a first detection device and a second detection device, wherein the first detection device and the second detection device are used for measuring a predetermined information of a target automobile, wherein the predetermined information contains a distance from the target automobile to the controlled automobile, a velocity and an acceleration of the target automobile, and the first detection device and the second detection device contain a first one-stage linear Kalman filter and a second one-stage linear Kalman filter, respectively, and the first detection device and the second detection device have a linear frequency modulation module, respectively; (b) utilizing the first one-stage linear Kalman filter to receive the predetermined information and obtain a corrected information from the predetermined information, wherein the signal-to-noise ratio of the corrected information is higher than that of the predetermined information; (c) utilizing triangulation to calculate the corrected information to obtain a component corrected information having vector components of a first direction and a second direction, wherein the corrected information corresponding to the predetermined information contains a corrected distance from the target automobile to the controlled automobile, a corrected velocity and a corrected acceleration of the target automobile; and (d) utilizing the second one-stage linear Kalman filter to enable the component corrected information to be a contrast information, wherein the signal-to-noise ratio of the contrast information is higher than that of the component corrected information.