Movable body detecting/notifying system

• US 6,696,975 B2
• Filed: 02/25/2002
• Issued: 02/24/2004
• Est. Priority Date: 06/05/1998
• Status: Expired due to Fees

• Current Assignee: Honda Giken Kogyo Kabushiki Kaisha (Honda Motor Company)
• Original Assignee: Honda Giken Kogyo Kabushiki Kaisha (Honda Motor Company)
• Inventors: Yamazaki, Takeshi
• Primary Examiner(s): Wu, Daniel J.
• Assistant Examiner(s): NGUYEN, HUNG T
• Application Number:
  US10/080,704
• Publication Number:
  US 20020080020A1
• Time in Patent Office: 729 Days
• Field of Search: 340/902, 340/901, 340/903, 340/933, 340/928, 340/935, 340/936, 340/904
• US Class Current: 340/902
• CPC Class Codes: G08G 1/163 involving continuous checking

Abstract

To provide a movable body detecting/notifying system that is capable of determining and reporting whether another movable body exists behind an obstruction or at a position that can be verified by the sense of sight. A movable body detecting/notifying system allows a detecting movable body to detect and report a detected movable body by using electromagnetic wave communication. The detected movable body transmits a large-wavelength electromagnetic wave easily diffractable by an obstruction as well as a small-wavelength electromagnetic wave not easily diffractable by an obstruction at the same time. The detecting movable body generates a notice for reception of only the large-wavelength electromagnetic wave without the small-wavelength electromagnetic wave or a notice for reception of both the large-wavelength and small-wavelength electromagnetic waves different from the notice for reception of only the large-wavelength electromagnetic wave.

Claims

1. A movable body detecting/notifying system for allowing a detecting movable body to detect and report a detected movable body by using electromagnetic wave communication, comprising:

means mountable to the detecting movable body for receiving information on a position of the detected movable body from a traffic regulating center, the traffic regulating center receiving information on positions of movable bodies within a predetermined range;

means mountable to the detected movable body for transmitting a large wavelength electromagnetic wave easily diffractable by an obstruction and a small-wavelength electromagnetic wave not easily diffractable by an obstruction; and

when said information on the position of the detected movable body indicates that said detected movable body is moving in a particular direction, said detecting movable body generates a caution signal upon reception of said large wavelength electromagnetic wave to produce a first notice upon reception of small-wavelength electromagnetic wave when the detected movable body is hidden by an obstruction, or a second notice upon reception of said small-wavelength electromagnetic wave when the detected movable body appears from behind the obstruction.

2. The movable body detecting/notifying system according to claim 1, wherein said first notice is different from said second notice.

3. The movable body detecting/notifying system according to claim 1, wherein an ID code for identifying the detected movable body is added to said small-wavelength electromagnetic wave generated by the detected movable body.

4. A movable body detecting/notifying system for allowing a detecting movable body to detect and report a detected movable body by using electromagnetic wave communication, comprising:

means mountable to the detected movable body for transmitting an electromagnetic wave;

means mountable to the detecting movable body for receiving said electromagnetic wave; and

means mountable to the detecting movable body for generating a caution signal when a detected intensity of said electromagnetic wave is small and generating first and second notices before and after respectively, a large change in detected intensity of said electromagnetic wave that results from the detected movable body appearing from behind an obstruction.

5. The movable body detecting/notifying system according to claim 4, wherein said first notice is different from said second notice.

6. The movable body detecting/notifying system according to claim 4, wherein an ID code for identifying the detected movable body is added to said electromagnetic wave generated by the detected movable body.