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EP1094336A2 Expired / Lapsed EP ⏱️ 0.0 years remaining

Object recognition apparatus

Assignee: Honda Motor Co Ltd
•
Filing: 2000-10-17
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Granted: —
•
Expires: 2020-10-17
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Abstract

Abstract This invention relates to an object recognition apparatus. This apparatus comprises an antenna (30) which emits transmission beams toward a plurality of directions; a receiving circuit which receives reflected signals of the transmission beams from predetermined directions; a distance and direction calculation circuit (60, 70) which calculates distance and direction to objects reflecting the transmission beams based on the transmission beams and the reflected signals; an object pattern storage unit (80) which stores range direction patterns of reflected signals obtained in advance with respect to predetermined objects; an object recognition circuit (90) which compares range direction patterns of the reflected signals received by the receiving circuit with respect to the predetermined directions, with the range direction patterns stored in the object pattern storage unit (80), and which recognize that a pair of reflected signals from two neighboring directions are signals reflected by the same object.

Inventors

  • 👤 Jun c/o K.K. Hon-da Gijutsu Kenkyusho Ashihara
  • 👤 Takashi c/o K.K. Hon-da Gijutsu Kenkyusho Sugawara
  • 👤 Hiroshi c/o K.K. Hon-da Gijutsu Kenkyusho Kudoh

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-10-26 12:33
CPC Classifications
G; G01; G01S; G01S13/00; G01S13/02; G01S13/06; G01S13/42; G01S13/88; G01S13/93; G01S13/931; G01S7/00; G01S7/02; G01S7/41; G01S7/411; G01S7/412; G01S2013/932; G01S2013/9325

Claims Analysis

Total Claims: 7
Claim 1
Independent Claim 139 words
An object recognition apparatus comprising: An antenna (30) that emits transmission beams toward a plurality of directions; A receiving circuit that receives reflected signals of the transmission beams from predetermined directions; A distance and direction calculation circuit (60, 70) which calculates distance and direction to objects reflecting the transmission beams based on the transmission beams and the reflected signals; An object pattern storage unit (80) which stores range direction patterns of reflected signals obtained in advance with respect to predetermined objects; An object recognition circuit (90) which compares range direction patterns of the reflected signals received by the receiving circuit with respect to the predetermined directions, with the range direction patterns stored in the object pattern storage unit (80), and which recognize that a pair of reflected signals from two neighboring directions are signals reflected by the same object.
Claim 2
Dependent Claim 32 words
An object recognition apparatus according to claim 1, wherein the object pattern storage unit stores range direction patterns of reflected signals obtained in advance with respect to rear portions of predetermined vehicles.
Claim 3
Dependent Claim 46 words
An object recognition apparatus according to claim 1, wherein the object pattern storage unit stores range direction patterns of reflected signals obtained in advance with respect to predetermined vehicles, and the range direction patterns are determined based on the length of each of the predetermined vehicles.
Claim 4
Dependent Claim 44 words
An object recognition apparatus according to claim 1, wherein the object recognition circuit determines the direction to a detected object by calculating the position of center of gravity based on the range direction patterns which are recognized as those generated by the same object.
Claim 5
Dependent Claim 37 words
An object recognition apparatus according to claim 1, wherein the object recognition circuit recognizes that a pair of reflected signals from two neighboring directions are signals reflected by the same object using size of vehicles as references.
Claim 6
Dependent Claim 66 words
An object recognition apparatus according to claim 5, wherein the object recognition circuit recognizes that two or more of the same kind of vehicles exist side by side, in the case where range direction patterns of a pair of reflected signals respectively obtained with respect to two neighboring directions are the same, and when a detected size is larger than a vehicle's size stored in advance.
Claim 7
Dependent Claim 116 words
An object recognition apparatus comprising: An antenna (30) that emits transmission beams toward a plurality of directions; A receiving circuit that receives reflected signals of the transmission beams from predetermined directions; A distance and direction calculation circuit (60, 70) which calculates distance and direction to objects reflecting the transmission beams based on the transmission beams and the reflected signals; A frequency computing circuit (60) this calculates frequency spectrums of the reflected signals from predetermined directions; A clustering processing circuit (110) which compares with each other the frequency spectrums of the reflected signals obtained with respect to the predetermined directions, and which recognizes that reflected signals having similar frequency spectrums are signals reflected by the same object.

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