公开(公告)号：US09664791B2

公开(公告)日：2017-05-30

申请号：US14952308

申请日：2015-11-25

申请人： LIXIL Corporation

发明人： Yuki Shirai ,  Nobuaki Itazu ,  Hiroyuki Oura

IPC分类号： E03C1/05 ,  G01S17/48 ,  G01V8/20 ,  G01S7/493 ,  G01S17/02 ,  G01S17/88 ,  G01S7/481

CPC分类号： G01S17/48 ,  E03C1/057 ,  G01S7/4813 ,  G01S7/493 ,  G01S17/026 ,  G01S17/88 ,  G01V8/20

摘要： A person-detecting sensor includes: a range-finding unit that decides whether distance to a detection object falls within a predetermined detection distance range; and a specular reflection decision unit that decides whether reflected light is specularly-reflected light. The specular reflection decision unit performs a threshold determination regarding the count of pixels or the proportion of pixels exhibiting a received-light quantity of a predetermined proportion or greater with respect to the maximum received-light quantity among received-light quantities from the reflected light and decides that the reflected light is specularly-reflected light when the count of the pixels or the proportion of the pixels is a predetermined threshold or less.

公开(公告)号：USD841778S1

公开(公告)日：2019-02-26

申请号：US29573593

申请日：2016-08-08

申请人： LIXIL Corporation

设计人： Yoshihiko Ando ,  Kousuke Yasuma ,  Hiromi Awada ,  Nobuaki Itazu

公开(公告)号：US09758952B2

公开(公告)日：2017-09-12

申请号：US14753472

申请日：2015-06-29

申请人： LIXIL Corporation

发明人： Yuki Shirai ,  Nobuaki Itazu ,  Hiroyuki Oura ,  Kenta Tanaka

IPC分类号： E03C1/05 ,  G01V8/10 ,  E03D5/10 ,  G01S17/48 ,  G01V8/20 ,  G01S17/02 ,  G01S7/491 ,  G01N21/55 ,  G01S17/88

CPC分类号： E03C1/057 ,  E03D5/105 ,  G01N21/55 ,  G01N2021/557 ,  G01S7/4912 ,  G01S17/026 ,  G01S17/48 ,  G01S17/88 ,  G01V8/20

摘要： A human body detection sensor includes: a detection decision unit that decides whether a state is a detection state or a non-detection state of a detection target; a specular reflection decision unit that decides whether or not reflected light that is incident onto a line sensor is specularly-reflected light; and a continuation decision unit that decides whether or not a state in which the detection target exists is ongoing, wherein, when specularly-reflected light is detected while a determination is made indicating the detection state, the detection decision unit keeps the result of a determination indicating the detection state without change if the result of the decision by the continuation decision unit indicates that the state is ongoing and changes the determination to a determination indicating the non-detection state if the result of the decision shows any other states.

公开(公告)号：US09677255B2

公开(公告)日：2017-06-13

申请号：US14952174

申请日：2015-11-25

申请人： LIXIL Corporation

发明人： Yuki Shirai ,  Nobuaki Itazu ,  Hiroyuki Oura

IPC分类号： E03C1/05 ,  G01V8/20 ,  G01S17/02

CPC分类号： E03C1/057 ,  G01S17/026 ,  G01V8/20

摘要： A person-detecting sensor includes: a range-finding unit that decides whether a distance to a detection object falls within a predetermined detection distance range; a received-light quantity decision unit that decides whether a received-light quantity is equal to or greater than a predetermined received-light quantity threshold; and a continuation decision unit that decides whether a state of the detection object being present is ongoing. In the received-light quantity decision unit, after water discharge is started upon the detection determination unit determining a detection object to be under detection state, for a period during which the continuation decision unit decides the state in which the detection object being present is ongoing, the received-light quantity threshold is set to be lower than prior to when the water discharge is started.