Projection system and computer-readable storage medium

Patent metadata

Field	Value
Publication number	US-2016229333-A1
Application number	US-201615009129-A
Country	US
Kind code	A1
Filing date	Jan 28, 2016
Priority date	Feb 10, 2015
Publication date	Aug 11, 2016
Grant date	—

Abstract

A projection system includes: a position detecting section that detects the position of a target object located in front of a host vehicle; and a control section which, on the basis of the position of the target object detected by the position detecting section, controls a headlamp so as to project onto the position of the target object a projection pattern that moves in a direction corresponding to the direction of motion of a background at the position of the target object or a direction corresponding to the opposite direction of the direction of motion of the background.

First claim

What is claimed is:

1 . A projection system comprising:
position detecting section that detects the position of a target object located in front of a host vehicle; and control section which, on the basis of the position of the target object detected by the position detecting section, controls a headlamp so as to project onto the position of the target object a projection pattern that moves in a direction corresponding to the direction of motion of a background at the position of the target object or a direction corresponding to the opposite direction of the direction of motion of the background.

2 . The projection system according to claim 1 , wherein the projection pattern is a projection pattern in which a predetermined design moves.

3 . The projection system according to claim 2 , wherein the predetermined design is a design predetermined in accordance with the direction of motion of the background.

4 . The projection system according to claim 1 , wherein in a case where the position of the target object detected by the position detecting section is on the right side of the road, the control section controls the headlamp so as to project onto the position of the target object the projection pattern which moves in a lower right direction or an upper left direction, and in a case where the position of the target object detected by the position detecting section is on the left side of the road, the control section controls the headlamp so as to project onto the position of the target object the projection pattern which moves in a lower left direction or an upper right direction.

5 . The projection system according to claim 1 , wherein the control section controls the headlamp so as to change the position of the projection pattern and project the projection pattern in correspondence to a change in the relative position of the target object on the basis of the position of the target object detected by the position detecting section and the velocity of the host vehicle.

6 . The projection system according to claim 5 , wherein
the position detecting section further detects the position of a background object located in the background of the target object, and the control section calculates the relative motion of the background object on the basis of the position of the background object detected by the position detecting section and the velocity of the host vehicle and changes the position of the projection pattern and projects the projection pattern in correspondence to the change in the relative position of the target object on the basis of the position of the target object detected by the position detecting section and the relative motion of the background object that has been calculated.

7 . The projection system according to claim 1 , wherein the control section calculates the relative motion of the target object on the basis of a time series of the position of the target object detected by the position detecting section and changes the position of the projection pattern and projects the projection pattern in correspondence to the change in the relative position of the target object on the basis of the position of the target object detected by the position detecting section and the relative motion of the target object that has been calculated.

8 . The projection system according to claim 1 , wherein the target object is a pedestrian.

9 . A non-transitory computer-readable storage medium storing a program for causing a computer to:
detect the position of a target object located in front of a host vehicle; and on the basis of the position of the detected target object, control a headlamp so as to project onto the position of the target object a projection pattern that moves in a direction corresponding to the direction of motion of a background at the position of the target object or a direction corresponding to the opposite direction of the direction of motion of the background.

Assignees

• Toyota Motor Co Ltd

Inventors

• Shiraki Nobuyuki
• Hiratsuka Shigeyoshi
• Kojima Shinichi
• Asaoka Kazuya
• Nakashima Kazuhiko

Classifications

• B60Q1/525

  automatically indicating risk of collision between vehicles in traffic or with pedestrians, e.g. after risk assessment using the vehicle sensor data · CPC title

• B60Q1/08

  automatically · CPC title

• B60Q1/26 Primary

  the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic · CPC title

• B60Q1/085 Primary

  due to special conditions, e.g. adverse weather, type of road, badly illuminated road signs or potential dangers (B60Q1/10, B60Q1/12, B60Q1/1423 take precedence) · CPC title

• B60Q2400/50

  Projected symbol or information, e.g. onto the road or car body · CPC title