Sensor integration based pedestrian detection and pedestrian collision prevention apparatus and method
First Claim
1. An apparatus for activating a pedestrian detection and collision mitigation system (PDCMS) of a vehicle, comprising:
- a front detection sensor detecting presence of a pedestrian on a driving lane of the vehicle, gaze information of the pedestrian, and a distance and a relative speed between the pedestrian and the vehicle;
a vehicle sensor detecting at least one of a speed, an acceleration, a steering angle, a steering angular velocity, or a pressure of a master cylinder of the vehicle;
an electronic control unit activating a function of the PDCMS when a collision of the pedestrian with the vehicle is expected based on information detected by the front detection sensor and the vehicle sensor; and
a warning unit providing a driver with a warning of the collision of the pedestrian with the vehicle,wherein the front detection sensor includes;
a radar sensor detecting the pedestrian on the driving lane of the vehicle using a radio wave reflected from the pedestrian to generate radar detection information, and determining a moving speed of the pedestrian based on the relative speed between the pedestrian and the speed of the vehicle;
a far-infrared sensor imaging heat radiated from the pedestrian to generate far-infrared recognition information; and
a processor integrating the radar detection information and the far-infrared recognition information,wherein the function of the PDCMS includes an operation of the warning unit and an operation of a brake of the vehicle regardless of whether the driver operates the brake,wherein the operation of the warning unit and the operation of the brake are performed in order of the operation of the warning unit, a partial braking of the vehicle, and a full braking of the vehicle, andwherein the electronic control unit is configured to determine that the function of the PDCMS is operated, if a speed of the vehicle is within a first speed range and the moving speed of the pedestrian on a driving lane is within a second speed range.
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Abstract
An apparatus includes a front detection sensor detecting presence of a pedestrian on a driving lane of the vehicle, gaze information of the pedestrian, and a distance and a relative speed between the pedestrian and the vehicle; a vehicle sensor detecting at least one of a speed, an acceleration, a steering angle, a steering angular velocity, or a pressure of a master cylinder of the vehicle; an electronic control unit activating a function of a pedestrian detection and collision mitigation system based on information detected by the front detection sensor and the vehicle sensor; and a warning unit operated to inform a driver of a collision of the pedestrian with the vehicle by controlling the electronic control unit.
37 Citations
17 Claims
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1. An apparatus for activating a pedestrian detection and collision mitigation system (PDCMS) of a vehicle, comprising:
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a front detection sensor detecting presence of a pedestrian on a driving lane of the vehicle, gaze information of the pedestrian, and a distance and a relative speed between the pedestrian and the vehicle; a vehicle sensor detecting at least one of a speed, an acceleration, a steering angle, a steering angular velocity, or a pressure of a master cylinder of the vehicle; an electronic control unit activating a function of the PDCMS when a collision of the pedestrian with the vehicle is expected based on information detected by the front detection sensor and the vehicle sensor; and a warning unit providing a driver with a warning of the collision of the pedestrian with the vehicle, wherein the front detection sensor includes; a radar sensor detecting the pedestrian on the driving lane of the vehicle using a radio wave reflected from the pedestrian to generate radar detection information, and determining a moving speed of the pedestrian based on the relative speed between the pedestrian and the speed of the vehicle; a far-infrared sensor imaging heat radiated from the pedestrian to generate far-infrared recognition information; and a processor integrating the radar detection information and the far-infrared recognition information, wherein the function of the PDCMS includes an operation of the warning unit and an operation of a brake of the vehicle regardless of whether the driver operates the brake, wherein the operation of the warning unit and the operation of the brake are performed in order of the operation of the warning unit, a partial braking of the vehicle, and a full braking of the vehicle, and wherein the electronic control unit is configured to determine that the function of the PDCMS is operated, if a speed of the vehicle is within a first speed range and the moving speed of the pedestrian on a driving lane is within a second speed range. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A method for activating a pedestrian detection and collision mitigation system (PDCMS) of a vehicle, comprising:
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detecting a pedestrian on a driving lane of the vehicle using a radio wave reflected from the pedestrian to generate radar detection information; imaging heat radiated from the pedestrian to generate far-infrared recognition information; integrating the radar detection information with the far-infrared recognition information to detect pedestrian information including presence of the pedestrian on the driving lane of the vehicle, gaze information of the pedestrian, and a distance and a relative speed between the pedestrian and the vehicle; detecting vehicle information including at least any one of a speed, an acceleration, a steering angle, a steering angular velocity, or a pressure of a master cylinder of the vehicle; determining a moving speed of the pedestrian based on the relative speed between the pedestrian and the speed of the vehicle; and activating a PDCMS function when a collision of the pedestrian with the vehicle is expected based on the pedestrian information and the vehicle information, wherein the PDCMS function includes an operation of a warning unit operated to provide a driver with a warning of the collision of the pedestrian with the vehicle and an operation of a brake of the vehicle regardless of whether the driver operates the brake, wherein the operation of the warning unit and the operation of the brake are performed in order of the operation of the warning unit, a partial braking of the vehicle, and a full braking of the vehicle, and wherein the method further includes determining that the function of PDCMS is operated, if a speed of the vehicle is within a first speed range and the moving speed of the pedestrian on a driving lane is within a second speed range.
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Specification