Recognition system for vehicle

• US 20090237293A1
• Filed: 03/18/2009
• Published: 09/24/2009
• Est. Priority Date: 03/21/2008
• Status: Abandoned Application

• Current Assignee: DENSO Corporation
• Original Assignee: DENSO Corporation
• Inventors: Sakuma, Yasushi
• Application Number:
  US12/381,934
• Publication Number:
  US 20090237293A1
• Time in Patent Office: Days
• US Class Current: 342/146
• CPC Class Codes: G01S 13/86 Combinations of radar systems with non-radar systems, e.g. sonar, direction finder
• CPC Class Codes: G01S 13/931 of land vehicles
• CPC Class Codes: G01S 2013/9316 combined with communication equipment with other vehicles or with base stations
• CPC Class Codes: G01S 2013/932 using own vehicle data, e.g. ground speed, steering wheel direction
• CPC Class Codes: G01S 2205/002 for traffic control, mobile tracking, guidance, surveillance or anti-collision
• CPC Class Codes: G01S 5/0072 Transmission between mobile stations, e.g. anti-collision systems
• CPC Class Codes: G08G 1/163 involving continuous checking

Abstract

In a recognition system for a vehicle, forward vehicle information and infrastructural information are checked together and with respect to information that can be considered to pertain to one and the same vehicle. Pieces of information on position and speed are averaged to acquire the information of the vehicle. Pieces of information that can be considered to pertain to one and the same vehicle are searched for and integrated into one. Further, estimated values of speed and position in the future are corrected using traveling information. Then identical lane probability and collision time are estimated, and information of the subject vehicle is transmitted to a vehicle on a potential collision course.

Claims

1. A recognition system comprising:

a communication device having first communicating means configured to wirelessly transmit information on present position thereof to a surrounding area; and

a recognition device having second communicating means configured to receive position information transmitted from the communication device,

wherein the recognition device includes;

analyzing means configured to radiate a radar wave and determine positions of objects based on result of reception of reflected waves that are reflected by the objects;

position acquiring means configured to acquire information of present position of the recognition device;

recognizing means configured to recognize as a nearby device an object among the objects whose position has been determined by the analyzing means based on result of analysis by the analyzing means, the position information received by the second communicating means, and result of acquisition by the position acquiring means; and

position correcting means configured to correct the position information of the nearby device received by the second communicating means based on result of acquisition by the position acquiring means and result of analysis by the analyzing means.

2. The recognition system of claim 1, wherein:

the recognition device is equipped in a movable body and includes identifying means configured to identify a nearby device on a course of a possible collision with the movable body among any nearby devices recognized by the recognizing means;

the second communicating means is configured to transmit information on presence of the movable body to the communication device of the nearby device identified by the identifying means; and

the first communicating means is configured to receive presence information transmitted from the first communication means.

3. The recognition system of claim 2, wherein:

the movable body is a vehicle;

the recognition device includes position estimating means configured to estimate position of the nearby device relative to the vehicle in the future based on the position information corrected by the position correcting means, and identical lane probability computing means configured to compute an identical lane probability, which is a probability that the vehicle and the nearby device will be positioned in one and the same lane in the future, based on the position of the nearby device in the future estimated by the position estimating means; and

the identifying means is configured to identify the nearby device on the course of a possible collision with the vehicle based on result of computation by the identical lane probability computing means.

4. The recognition system of claim 3, wherein:

the identifying means is configured to identify as the nearby device on the course of a possible collision with the vehicle a nearby device which comes close so that distance from the vehicle becomes equal to or smaller than a predetermined threshold value and whose identical lane probability calculated by the identical lane probability computing means is equal to or higher than a predetermined threshold value based on result of estimation by the position estimating means and result of computation by the identical lane probability computing means.

5. The recognition system of claim 2, wherein:

the communication device includes notifying means configured to notify a user thereof presence of a movable body including the second communication means in response to presence information received by the first communication means from the second communication means.

6. The recognition system of claim 5, wherein:

the presence information received from the second communication means includes information on position of the second communication means; and

the notifying means is configured to notify the user of presence of the movable body having the second communication means by at least either of an image and a sound.