The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Jul. 03, 2018

Filed:

Jun. 25, 2014
Applicant:

Denso Corporation, Kariya-city, Aichi-pref., JP;

Inventors:

Kazuhisa Ishimaru, Nagoya, JP;

Kiyokazu Takagi, Kariya, JP;

Naoki Kawasaki, Kariya, JP;

Assignee:

DENSO CORPORATION, Kariya, Aichi-pref., JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01C 3/08 (2006.01); G01S 7/48 (2006.01); G01S 17/42 (2006.01); G08G 1/16 (2006.01); G01S 17/93 (2006.01); G01S 7/487 (2006.01);
U.S. Cl.
CPC ...
G01S 7/4802 (2013.01); G01S 7/4873 (2013.01); G01S 17/42 (2013.01); G01S 17/936 (2013.01); G08G 1/16 (2013.01);
Abstract

A monitoring apparatus is provided. When a determination process of determining whether or not the part of an object located in a search range is an airborne substance, a rangefinder measures a distance to the object located in the search range for each of a plurality of unit areas forming the search range, a variation measure calculator calculates a variance of the distances (individual distances) measured for the respective unit areas, a variable threshold setter variably sets a variation measure threshold based on the individual distances, and a determiner determines that at least part of the object is an airborne substance if the calculated variance exceeds the variation measure threshold.


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