Warning system for warning a following vehicle
First Claim
1. A warning system for warning a following vehicle, the warning system comprising:
- a distance measuring unit, which is disposed on a vehicle, for measuring a distance from the vehicle to the following vehicle following the vehicle, and outputting a measured target distance parameter;
a calculating unit for receiving the target distance parameter and a running speed of the vehicle and comparing the target distance parameter with a first distance parameter and a second distance parameter to output a first control signal and a second control signal, respectively, wherein the first control signal is enabled when the target distance parameter is smaller than the first distance parameter, and the second control signal is enabled when the target distance parameter is smaller than the second distance parameter;
a warning unit for receiving the first control signal and generating a warning operation when the first control signal is enabled; and
a video recording unit, which is disposed on the vehicle, for receiving the second control signal and recording video in a backward direction of the vehicle when the second control signal is enabled,wherein the first control signal and second control signal are calculated according to the running speed of the vehicle.
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Abstract
A warning system for warning a following vehicle includes a distance measuring unit, a calculating unit, a warning unit, a video recording unit and a display unit. The distance measuring unit measures a distance to the following vehicle, and the warning unit shows warning information if the following vehicle does not keep a safe distance. When the distance is smaller than a threshold distance, the video recording unit records video of the following vehicle. Thus, the warning system can effectively warn a driver who does not keep the safe distance, and provide a direct evidence for policing the driver who disobeys traffic rules so that the good driving environment can be obtained. Meanwhile, it is also possible to provide a reference to tell the driver the speed and the distance of the following vehicle through the display unit.
10 Citations
9 Claims
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1. A warning system for warning a following vehicle, the warning system comprising:
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a distance measuring unit, which is disposed on a vehicle, for measuring a distance from the vehicle to the following vehicle following the vehicle, and outputting a measured target distance parameter; a calculating unit for receiving the target distance parameter and a running speed of the vehicle and comparing the target distance parameter with a first distance parameter and a second distance parameter to output a first control signal and a second control signal, respectively, wherein the first control signal is enabled when the target distance parameter is smaller than the first distance parameter, and the second control signal is enabled when the target distance parameter is smaller than the second distance parameter; a warning unit for receiving the first control signal and generating a warning operation when the first control signal is enabled; and a video recording unit, which is disposed on the vehicle, for receiving the second control signal and recording video in a backward direction of the vehicle when the second control signal is enabled, wherein the first control signal and second control signal are calculated according to the running speed of the vehicle. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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Specification