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公开(公告)号：US20140204362A1
公开(公告)日：2014-07-24
申请号：US14129654
申请日：2012-11-02
申请人： OPTEX Co., Ltd.
发明人： Masashi Iwasawa
IPC分类号： G01S17/02
CPC分类号： G01S17/026 , G01S7/4802 , G01S7/497 , G01S17/42 , G01S17/89 , G08B13/187
摘要： The configuration includes a laser range finder (110), a scan mechanism (120), a distance-data acquiring unit (130), a memory (160), which stores installation state information and detection-area information for each measurement direction, a human-body determining unit (140), a detection area-information updater (140), which updates detection-area information under a predetermined condition, and the alert-output control unit (150). The human-body determining unit (140) extracts a portion that possibly corresponds to a human body in an object that has invaded or moved, which is found out by comparison with the detection-area information based on the acquired distance information, and determines whether or not a rest of the respective extracted portions is a human body based on a movement state of each of the extracted portion in chronological order. The rest of the extracted portions excludes the extracted portions where a movement distance within a predetermined time is within a predetermined distance.
摘要翻译： 该配置包括存储安装状态信息和每个测量方向的检测区域信息的激光测距仪（110），扫描机构（120），距离数据获取单元（130），存储器（160） 人体确定单元（140），在预定条件下更新检测区域信息的检测区域信息更新器（140）和警报输出控制单元（150）。 人体确定单元（140）基于所获取的距离信息，通过与检测区域信息进行比较而发现与入侵或移动的对象中可能对应于人体的部分，并且确定是否 或者不是各个提取部分的其余部分是基于每个提取部分的按时间顺序的移动状态的人体。 所提取的部分的其余部分不包括在预定时间内的移动距离在预定距离内的提取部分。
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公开(公告)号：US09182489B2
公开(公告)日：2015-11-10
申请号：US14129654
申请日：2012-11-02
申请人： OPTEX Co., Ltd.
发明人： Masashi Iwasawa
CPC分类号： G01S17/026 , G01S7/4802 , G01S7/497 , G01S17/42 , G01S17/89 , G08B13/187
摘要： The configuration includes a laser range finder (110), a scan mechanism (120), a distance-data acquiring unit (130), a memory (160), which stores installation state information and detection-area information for each measurement direction, a human-body determining unit (140), a detection area-information updater (140), which updates detection-area information under a predetermined condition, and the alert-output control unit (150). The human-body determining unit (140) extracts a portion that possibly corresponds to a human body in an object that has invaded or moved, which is found out by comparison with the detection-area information based on the acquired distance information, and determines whether or not a rest of the respective extracted portions is a human body based on a movement state of each of the extracted portion in chronological order. The rest of the extracted portions excludes the extracted portions where a movement distance within a predetermined time is within a predetermined distance.
摘要翻译： 该配置包括存储安装状态信息和每个测量方向的检测区域信息的激光测距仪（110），扫描机构（120），距离数据获取单元（130），存储器（160） 人体确定单元（140），在预定条件下更新检测区域信息的检测区域信息更新器（140）和警报输出控制单元（150）。 人体确定单元（140）基于所获取的距离信息，通过与检测区域信息进行比较而发现与入侵或移动的对象中可能对应于人体的部分，并且确定是否 或者不是各个提取部分的其余部分是基于每个提取部分的按时间顺序的移动状态的人体。 所提取的部分的其余部分不包括在预定时间内的移动距离在预定距离内的提取部分。
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公开(公告)号：US11899109B2
公开(公告)日：2024-02-13
申请号：US17117453
申请日：2020-12-10
申请人： OPTEX CO., LTD.
发明人： Masashi Iwasawa , Masashiro Morita
IPC分类号： G01S17/10 , G01S7/481 , G01S7/495 , G08B13/184
CPC分类号： G01S17/10 , G01S7/4814 , G01S7/4817 , G01S7/495 , G08B13/184
摘要： A laser scanning sensor includes a distance data acquisition unit which acquires distance information in each measurement direction, and a memory which stores, as background distance information, a distance of an outer periphery of the detection area in each measurement direction. The sensor also includes a mirror surface determination unit which determines the presence of a reflecting surface when the distance information in continuous measurement directions is greater by at least a predetermined distance than the corresponding background distance information, and when this state changes thereafter by at least a predetermined rate in a predetermined time, a human body determination unit which extracts a portion of the distance information that may correspond to a human body and determines whether it corresponds to a human body, and an alarm output control unit which outputs an alarm signal when the presence of the reflecting surface or the human body is confirmed.
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公开(公告)号：US11531092B2
公开(公告)日：2022-12-20
申请号：US16312386
申请日：2017-08-07
申请人： OPTEX Co., Ltd.
发明人： Masashi Iwasawa , Keisuke Katsumi , Seongho Cho
IPC分类号： G01S7/481 , G02B26/12 , G01S7/484 , G01S7/486 , G01S17/42 , G01S7/497 , G02B26/10 , G01S7/4865
摘要： A laser scanning sensor includes a laser light-emitting element to emit a pulse laser beam, a light-receiving element to receive a returned reflected beam, a rotary polygon mirror having a plurality of reflecting surfaces to change the travelling direction of the pulse laser beam, and a drive motor to rotate the rotary polygon mirror in a predetermined direction. The sensor also includes an encoder to detect the rotation status of the rotary polygon mirror and to generate a reference signal and trigger signals for the respective reflecting surfaces, and a control/calculation unit to produce a projection pulse train in a specific pulse cycle after a delay time from the generation of a trigger signal for each of the reflecting surfaces, and to acquire distance information per pulse, based on the time after the start of emission of the pulse laser beam before the return of the reflected beam.
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公开(公告)号：US20210278534A1
公开(公告)日：2021-09-09
申请号：US17117453
申请日：2020-12-10
申请人： OPTEX CO., LTD.
发明人： Masashi Iwasawa , Masashiro Morita
IPC分类号： G01S17/10 , G01S7/481 , G01S7/495 , G08B13/184
摘要： A laser scanning sensor includes a distance data acquisition unit which acquires distance information in each measurement direction, and a memory which stores, as background distance information, a distance of an outer periphery of the detection area in each measurement direction. The sensor also includes a mirror surface determination unit which determines the presence of a reflecting surface when the distance information in continuous measurement directions is greater by at least a predetermined distance than the corresponding background distance information, and when this state changes thereafter by at least a predetermined rate in a predetermined time, a human body determination unit which extracts a portion of the distance information that may correspond to a human body and determines whether it corresponds to a human body, and an alarm output control unit which outputs an alarm signal when the presence of the reflecting surface or the human body is confirmed.
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公开(公告)号：US10139477B2
公开(公告)日：2018-11-27
申请号：US15220691
申请日：2016-07-27
申请人： OPTEX Co., Ltd.
发明人： Masashi Iwasawa
摘要： In a laser range finder, each reflected light reflected by at least one object of pulsed laser light emitted by a light emitting element reaches a light receiving element, and distance information to the at least one object is acquired based on an amount of time from a light emission starting time for the pulsed laser light to an output starting time from the light receiving element. An erroneous detection reducing circuit for the laser range finder includes: a comparator receiving as inputs a threshold and a light-reception output from the light receiving element; a time measuring section measuring time elapsed since the light emission starting time for the pulsed laser light; and a setting changing section changing either one or both of the threshold and an amplification factor of the comparator for the light-reception output in accordance with a time measurement value obtained by the time measuring section.
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公开(公告)号：US09733358B2
公开(公告)日：2017-08-15
申请号：US14429150
申请日：2013-08-28
申请人： OPTEX Co., Ltd.
发明人： Masashi Iwasawa , Seongho Cho
CPC分类号： G01S17/50 , G01S7/4802 , G01S7/4808 , G01S7/4817 , G01S17/026 , G01S17/42 , G08B13/187
摘要： The laser scanning sensor includes a laser distance meter, a scanning mechanism, a distance data acquisition unit, a distance data complementation unit, a human body judgment unit, an alarm output control unit, and a memory. For each measurement direction when a piece of distance information corresponds to an unintended object located at a shorter distance than an object to be originally detected and when complementation of the piece of distance information is possible based on a piece of distance information in an adjacent measurement direction or at a previous measurement cycle, the distance data complementation unit replaces the piece of distance information in the measurement direction corresponding to the unintended object with an interpolated value based on the piece of distance information acquired in the adjacent measurement direction or with an interpolated value based on the piece of distance information acquired in the measurement direction at a previous measurement cycle.
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公开(公告)号：US20150212209A1
公开(公告)日：2015-07-30
申请号：US14429150
申请日：2013-08-28
申请人： Masashi IWASAWA , Seongho CHO , OPTEX Co., Ltd.
发明人： Masashi Iwasawa , Seongho Cho
CPC分类号： G01S17/50 , G01S7/4802 , G01S7/4808 , G01S7/4817 , G01S17/026 , G01S17/42 , G08B13/187
摘要： The laser scanning sensor includes a laser distance meter, a scanning mechanism, a distance data acquisition unit, a distance data complementation unit, a human body judgment unit, an alarm output control unit, and a memory. For each measurement direction when a piece of distance information corresponds to an unintended object located at a shorter distance than an object to be originally detected and when complementation of the piece of distance information is possible based on a piece of distance information in an adjacent measurement direction or at a previous measurement cycle, the distance data complementation unit replaces the piece of distance information in the measurement direction corresponding to the unintended object with an interpolated value based on the piece of distance information acquired in the adjacent measurement direction or with an interpolated value based on the piece of distance information acquired in the measurement direction at a previous measurement cycle.
摘要翻译： 激光扫描传感器包括激光距离计，扫描机构，距离数据获取单元，距离数据互补单元，人体判断单元，报警输出控制单元和存储器。 对于每个测量方向，当一段距离信息对应于位于比原始检测对象更短的距离处的非预期对象时，并且当距离信息的互补可以基于相邻测量方向上的距离信息 或者在先前的测量周期，距离数据互补单元基于在相邻测量方向上获取的距离信息或基于内插值的内插值来替换与非预期对象相对应的测量方向上的距离信息， 在先前测量周期在测量方向上获得的距离信息。
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