Following distance reminding device and method thereof
First Claim
1. A following distance reminding device, adapted for a first vehicle, computing a following distance between the first vehicle and a second vehicle, the following distance reminding device comprising:
- an image acquiring module, receiving a vehicle image of the second vehicle;
a reminding module;
a processing module coupled to the image acquiring module and the reminding module; and
a speed signal reception interface coupled to the processing module;
wherein the processing module extracts a license plate image from the vehicle image, and computes the following distance between the first vehicle and the second vehicle according to image characteristics of the license plate image, wherein the image characteristics comprise a license plate size of the license plate image, and the processing module computes the following distance according to the license plate size;
wherein the processing module computes a safe distance according to a driving speed of the first vehicle and the image characteristics, and determines whether the following distance is more than the safe distance or not, in order to control the reminding module to correspondingly send a reminding message;
wherein the image characteristics further comprise a vehicle type information, and the processing module computes the safe distance according to the driving speed received by the speed signal reception interface and the vehicle type information;
wherein the vehicle type information comprises at least one of a license plate color and a license plate number of the license image;
wherein the processing module determines whether the second vehicle is a large vehicle or a small vehicle according to the license plate color or the license plate number, and computes the safe distance based on a computation formula corresponding to the large vehicle or the small vehicle.
0 Assignments
0 Petitions
Accused Products
Abstract
A device and method for reminding following distance are provided. The following distance reminding device (FDRD) adapted for a first vehicle is capable of computing a following distance between the first vehicle and a second vehicle. The FDRD comprises an image acquiring module, a reminding module, and a processing module. The image acquiring module receives a vehicle image of the second vehicle. The processing module extracts a license plate image from the vehicle image, and computes the following distance between the first vehicle and the second vehicle according to image characteristics of the license plate image. The processing module computes a safe distance according to a driving speed of the first vehicle and the image characteristics, and determines whether the following distance is more than the safe distance or not, in order to control the reminding module to correspondingly send a reminding message.
4 Citations
10 Claims
-
1. A following distance reminding device, adapted for a first vehicle, computing a following distance between the first vehicle and a second vehicle, the following distance reminding device comprising:
-
an image acquiring module, receiving a vehicle image of the second vehicle; a reminding module; a processing module coupled to the image acquiring module and the reminding module; and a speed signal reception interface coupled to the processing module; wherein the processing module extracts a license plate image from the vehicle image, and computes the following distance between the first vehicle and the second vehicle according to image characteristics of the license plate image, wherein the image characteristics comprise a license plate size of the license plate image, and the processing module computes the following distance according to the license plate size; wherein the processing module computes a safe distance according to a driving speed of the first vehicle and the image characteristics, and determines whether the following distance is more than the safe distance or not, in order to control the reminding module to correspondingly send a reminding message; wherein the image characteristics further comprise a vehicle type information, and the processing module computes the safe distance according to the driving speed received by the speed signal reception interface and the vehicle type information; wherein the vehicle type information comprises at least one of a license plate color and a license plate number of the license image; wherein the processing module determines whether the second vehicle is a large vehicle or a small vehicle according to the license plate color or the license plate number, and computes the safe distance based on a computation formula corresponding to the large vehicle or the small vehicle. - View Dependent Claims (2, 3, 4, 5)
-
-
6. A method for reminding following distance, adapted for a first vehicle, computing a following distance between the first vehicle and a second vehicle, the method comprising:
-
receiving a vehicle image of the second vehicle; extracting a license plate image from the vehicle image; computing the following distance between the first vehicle and the second vehicle according to image characteristics of the license plate image, wherein the image characteristics comprise a license plate size of the license plate image, and the following distance is computed based on the license plate size; computing a safe distance according to a driving speed of the first vehicle and the image characteristics, wherein the image characteristics further comprise a vehicle type information of the license plate image, and the safe distance is computed by the driving speed and the vehicle type information;
wherein the vehicle type information comprises at least one of the license plate color and the license plate number of the license plate image;
wherein according to the license plate color or the license plate number of the license plate image, it is determined whether the second vehicle is a large vehicle or a small vehicle, and the safe distance is computed by the computation formula corresponding to the large vehicle or the small vehicle;determining whether the following distance is more than the safe distance; and correspondingly sending a reminding message depending on the determined result. - View Dependent Claims (7, 8, 9, 10)
-
Specification