Method of recording traffic images and a drive recorder system
AssigneeMitac International Corp.
InventorsKuan-Hung YEH, Shun-Cheng HUNG
Life of this patent
Estimating the term…
Abstract
A method of recording traffic images is to be implemented in a drive recorder system. The method includes recording the traffic images at a first recording frame rate, generating a detection signal according to movement of the vehicle, searching a pre-stored table to acquire a vehicle driving condition matching with the detection signal, and recording the traffic images at a second recording frame rate when the acquired vehicle driving condition corresponds to an alert condition. The second recording frame rate is greater than the first recording frame rate.
Claims14
A method of recording traffic images to be implemented in a drive recorder system, the method comprising:
- recording the traffic images at a first recording frame rate;
- generating a detection signal according to movement of the vehicle;
- searching a pre-stored table to acquire a vehicle driving condition matching with the detection signal;
- and
- recording the traffic images at a second recording frame rate when the acquired vehicle driving condition corresponds to an alert condition, wherein the second recording frame rate is greater than the first recording frame rate.
A drive recorder system for use in a vehicle, comprising:
- an image capturing unit configured to record traffic images at a first recording frame rate when the drive recorder system is switched from a deactivated state to an activated state;
- a motion sensing unit for generating a motion value according to movement of the vehicle;
- a storage unit for storing a pre-stored table that defines relationships between a plurality of detection signals and a plurality of vehicle driving conditions that respectively match with the detection signals;
- and
- a processing unit coupled electrically to said image capturing unit, said motion sensing unit, and said storage unit;
- said processing unit being configured to receive the motion value from said motion sensing unit, to perform motion detection computation upon the motion value to obtain a computed detection signal, to acquire, from the pre-stored table, one of said vehicle driving conditions that matches with the computed detection signal, and to activate the recording of the traffic images at a second recording frame rate when the acquired vehicle driving condition corresponds to an alert condition, wherein the second recording frame rate is greater than the first recording frame rate.
A drive recorder system for use in a vehicle, comprising:
- an image capturing unit configured to record traffic images at a first recording frame rate when the drive recorder system is switched from a deactivated state to an activated state;
- an antenna unit operable to receive a global positioning system (GPS) signal;
- a storage unit for storing a pre-stored table that defines relationships between a plurality of detection signals and a plurality of vehicle driving conditions that respectively match with the detection signals, said storage unit further storing map data;
- and
- a processing unit coupled electrically to said image capturing unit, said antenna unit, and said storage unit;
- said processing unit being configured to receive the GPS signal from said antenna unit, to perform a comparison computation upon the GPS signal and the map data stored in said storage unit to acquire a current position, to generate a detection signal when the current position is located on or adjacent to at least one road, to acquire, from said pre-stored table, one of said vehicle driving conditions that matches with the generated detection signal, and to activate the recording of the traffic images at a second recording frame rate when the acquired vehicle driving condition corresponds to an alert condition, wherein the second recording frame rate is greater than the first recording frame rate.
Dependencies are inferred from the claim text.