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公开(公告)号：US08089826B2
公开(公告)日：2012-01-03
申请号：US12458924
申请日：2009-07-28
IPC分类号： G01N29/00
CPC分类号： G01S15/931 , G01S7/52006 , G01S15/42
摘要： A ultrasonic device detecting a direction to an object includes: a transmitting element of a ultrasonic wave; first and second receiving elements; a diffraction wave phase detector; an initial phase memory for an initial phase of a diffraction wave; a sound speed detector; a phase correction amount calculator calculating a phase shift caused by a sound speed change and calculating a phase correction amount based on the phase of the diffraction wave, the initial phase and the phase shift; a phase correction element correcting a phase of the reflection wave based on the phase correction amount; and a direction detector for detecting the direction to the object based on a difference between corrected phases of the reflection wave received by the first and second receiving elements, a distance between the first and second receiving elements, and a wavelength of the transmission ultrasonic wave corresponding to a sound speed.
摘要翻译： 检测到物体的方向的超声波装置包括：超声波的发送元件; 第一和第二接收元件; 衍射波相位检测器; 用于衍射波的初始相位的初始相位存储器; 声速检测器; 计算由声速变化引起的相移的相位校正量计算器，并且基于所述衍射波的相位，所述初始相位和所述相位来计算相位校正量; 相位校正元件，基于相位校正量校正反射波的相位; 以及方向检测器，用于基于由第一和第二接收元件接收的反射波的校正相位之间的差异，第一和第二接收元件之间的距离以及对应于发射超声波的波长来检测对象的方向 达到声速。
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公开(公告)号：US20100024557A1
公开(公告)日：2010-02-04
申请号：US12458924
申请日：2009-07-28
IPC分类号： G01N29/00
CPC分类号： G01S15/931 , G01S7/52006 , G01S15/42
摘要： A ultrasonic device detecting a direction to an object includes: a transmitting element of a ultrasonic wave; first and second receiving elements; a diffraction wave phase detector; an initial phase memory for an initial phase of a diffraction wave; a sound speed detector; a phase correction amount calculator calculating a phase shift caused by a sound speed change and calculating a phase correction amount based on the phase of the diffraction wave, the initial phase and the phase shift; a phase correction element correcting a phase of the reflection wave based on the phase correction amount; and a direction detector for detecting the direction to the object based on a difference between corrected phases of the reflection wave received by the first and second receiving elements, a distance between the first and second receiving elements, and a wavelength of the transmission ultrasonic wave corresponding to a sound speed.
摘要翻译： 检测到物体的方向的超声波装置包括：超声波的发送元件; 第一和第二接收元件; 衍射波相位检测器; 用于衍射波的初始相位的初始相位存储器; 声速检测器; 计算由声速变化引起的相移的相位校正量计算器，并且基于所述衍射波的相位，所述初始相位和所述相位来计算相位校正量; 相位校正元件，基于相位校正量校正反射波的相位; 以及方向检测器，用于基于由第一和第二接收元件接收的反射波的校正相位之间的差异，第一和第二接收元件之间的距离以及对应于发射超声波的波长来检测对象的方向 达到声速。
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公开(公告)号：US08503265B2
公开(公告)日：2013-08-06
申请号：US12656524
申请日：2010-02-02
CPC分类号： G01S15/931 , G01S7/5273 , G01S7/539 , G01S15/42 , G01S15/46 , G01S15/87 , G01S2015/939
摘要： A transmission and reception device is located at a predetermined height on a movable object and directed toward an outside. The transmission and reception device includes a transmission unit for repeatedly transmitting sensing waves at a predetermined interval and a reception unit for receiving reflective waves of the sensing waves from a detected object. A peak value detecting unit detects peak values of the received reflective waves and stores the detected peak values. A difference arithmetic unit calculates a difference in the detected peak values with movement of the movable object closer to the detected object. An object determination unit determines the detected object to be a near-road-surface obstacle, which is close to a road surface, when the difference is a negative value. The object determination unit determines the detected object to be an other obstacle than the near-road-surface obstacle when the difference is a positive value.
摘要翻译： 发送和接收设备位于可移动物体上的预定高度并指向外部。 发送和接收装置包括用于以预定间隔重复发送感测波的发送单元和用于从检测对象接收感测波的反射波的接收单元。 峰值检测单元检测所接收的反射波的峰值，并存储所检测的峰值。 差分运算单元通过可移动物体更接近被检测物体的运动来计算检测到的峰值的差异。 当该差为负值时，对象确定单元确定检测对象为靠近路面的近路面障碍物。 当差为正值时，物体确定单元确定所检测到的物体是比近路面障碍物更多的障碍物。
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公开(公告)号：US20120174673A1
公开(公告)日：2012-07-12
申请号：US13425460
申请日：2012-03-21
申请人： Makiko Sugiura , Yasuyuki Okuda , Takaaki Kawai , Takahiko Yoshida , Hisanaga Matsuoka , Toshiki Isogai , Mitsuyasu Matsuura
发明人： Makiko Sugiura , Yasuyuki Okuda , Takaaki Kawai , Takahiko Yoshida , Hisanaga Matsuoka , Toshiki Isogai , Mitsuyasu Matsuura
IPC分类号： G01N29/04
CPC分类号： G01S7/52004 , G01S7/52 , G01S7/52006 , G01S7/521 , G01S15/003 , G01S15/876 , G01S15/931 , G01S2015/939
摘要： An ultrasonic sensor includes a transmitting device, a receiving device, and a circuit device. The circuit device determines that the receiving device receives an ultrasonic wave reflected from an object, when an output voltage of the receiving device is equal to or greater than a first threshold. The circuit device includes a humidity detection section configured to detect an ambient humidity of the transmitting and receiving devices and a threshold adjustment section configured to calculate, based on the detected ambient humidity, a sound pressure of the ultrasonic wave that is received by the receiving device after propagating over a round-trip distance between the ultrasonic sensor and the object. The threshold adjustment section reduces the first threshold, when the output voltage corresponding to the calculated sound pressure is less than a second threshold that is greater the first threshold.
摘要翻译： 超声波传感器包括发送装置，接收装置和电路装置。 当接收装置的输出电压等于或大于第一阈值时，电路装置确定接收装置接收从对象反射的超声波。 电路装置包括：湿度检测部，被配置为检测发送和接收装置的环境湿度;以及阈值调整部，其被配置为基于检测到的环境湿度来计算由接收装置接收的超声波的声压 在超声波传感器和物体之间的往返距离上传播。 当与计算出的声压相对应的输出电压小于第一阈值以上的第二阈值时，阈值调节部分减小第一阈值。
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公开(公告)号：US08248887B2
公开(公告)日：2012-08-21
申请号：US12656663
申请日：2010-02-12
IPC分类号： G01S15/93
CPC分类号： G01S7/521 , G01S7/52003 , G01S7/52006 , G01S7/524 , G01S7/527 , G01S7/539 , G01S15/101 , G01S15/42 , G01S15/87 , G01S15/931 , G01S2015/938
摘要： In an obstacle detection system, a wave transmitted by a transmitting element and received by receiving elements as a receiving wave includes extraneous waves, which are reflection waves from other than an obstacle, and obstacle reflection waves from an obstacle. It is determined that, an obstacle is present, if the reflection waves are detected as having an amplitude (voltage) greater than a threshold level and a reception time difference between time points at which the amplitude exceeds threshold level at the receiving elements is less than a predetermined time.
摘要翻译： 在障碍物检测系统中，由发送元件发送并由接收元件作为接收波接收的波包括作为来自障碍物的反射波的外来波和来自障碍物的障碍物反射波。 确定存在障碍物，如果反射波被检测为具有大于阈值电平的幅度（电压），并且在接收元件处振幅超过阈值电平的时间点之间的接收时间差小于 一个预定的时间。
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公开(公告)号：US20100220550A1
公开(公告)日：2010-09-02
申请号：US12656524
申请日：2010-02-02
CPC分类号： G01S15/931 , G01S7/5273 , G01S7/539 , G01S15/42 , G01S15/46 , G01S15/87 , G01S2015/939
摘要： A transmission and reception device is located at a predetermined height on a movable object and directed toward an outside. The transmission and reception device includes a transmission unit for repeatedly transmitting sensing waves at a predetermined interval and a reception unit for receiving reflective waves of the sensing waves from a detected object. A peak value detecting unit detects peak values of the received reflective waves and stores the detected peak values. A difference arithmetic unit calculates a difference in the detected peak values with movement of the movable object closer to the detected object. An object determination unit determines the detected object to be a near-road-surface obstacle, which is close to a road surface, when the difference is a negative value. The object determination unit determines the detected object to be an other obstacle than the near-road-surface obstacle when the difference is a positive value.
摘要翻译： 发送和接收设备位于可移动物体上的预定高度并指向外部。 发送和接收装置包括用于以预定间隔重复发送感测波的发送单元和用于从检测对象接收感测波的反射波的接收单元。 峰值检测单元检测所接收的反射波的峰值，并存储所检测的峰值。 差分运算单元通过可移动物体更接近被检测物体的运动来计算检测到的峰值的差异。 当该差为负值时，对象确定单元确定检测对象为靠近路面的近路面障碍物。 当差为正值时，物体确定单元确定所检测到的物体是比近路面障碍物更多的障碍物。
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公开(公告)号：US08166824B2
公开(公告)日：2012-05-01
申请号：US12385714
申请日：2009-04-16
申请人： Makiko Sugiura , Yasuyuki Okuda , Takaaki Kawai , Takahiko Yoshida , Hisanaga Matsuoka , Toshiki Isogai , Mitsuyasu Matsuura
发明人： Makiko Sugiura , Yasuyuki Okuda , Takaaki Kawai , Takahiko Yoshida , Hisanaga Matsuoka , Toshiki Isogai , Mitsuyasu Matsuura
IPC分类号： G01N29/32
CPC分类号： G01S7/52004 , G01S7/52 , G01S7/52006 , G01S7/521 , G01S15/003 , G01S15/876 , G01S15/931 , G01S2015/939
摘要： An ultrasonic sensor includes a transmitting device, a receiving device, and a circuit device. The circuit device determines that the receiving device receives an ultrasonic wave reflected from an object, when an output voltage of the receiving device is equal to or greater than a first threshold. The circuit device includes a humidity detection section configured to detect an ambient humidity of the transmitting and receiving devices and a threshold adjustment section configured to calculate, based on the detected ambient humidity, a sound pressure of the ultrasonic wave that is received by the receiving device after propagating over a round-trip distance between the ultrasonic sensor and the object. The threshold adjustment section reduces the first threshold, when the output voltage corresponding to the calculated sound pressure is less than a second threshold that is greater the first threshold.
摘要翻译： 超声波传感器包括发送装置，接收装置和电路装置。 当接收装置的输出电压等于或大于第一阈值时，电路装置确定接收装置接收从对象反射的超声波。 电路装置包括：湿度检测部，被配置为检测发送和接收装置的环境湿度;以及阈值调整部，其被配置为基于检测到的环境湿度来计算由接收装置接收的超声波的声压 在超声波传感器和物体之间的往返距离上传播。 当与计算出的声压相对应的输出电压小于第一阈值以上的第二阈值时，阈值调节部分减小第一阈值。
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公开(公告)号：US20090260422A1
公开(公告)日：2009-10-22
申请号：US12385714
申请日：2009-04-16
申请人： Makiko Sugiura , Yasuyuki Okuda , Takaaki Kawai , Takahiko Yoshida , Hisanaga Matsuoka , Toshiki Isogai , Mitsuyasu Matsuura
发明人： Makiko Sugiura , Yasuyuki Okuda , Takaaki Kawai , Takahiko Yoshida , Hisanaga Matsuoka , Toshiki Isogai , Mitsuyasu Matsuura
CPC分类号： G01S7/52004 , G01S7/52 , G01S7/52006 , G01S7/521 , G01S15/003 , G01S15/876 , G01S15/931 , G01S2015/939
摘要： An ultrasonic sensor includes a transmitting device, a receiving device, and a circuit device. The circuit device determines that the receiving device receives an ultrasonic wave reflected from an object, when an output voltage of the receiving device is equal to or greater than a first threshold. The circuit device includes a humidity detection section configured to detect an ambient humidity of the transmitting and receiving devices and a threshold adjustment section configured to calculate, based on the detected ambient humidity, a sound pressure of the ultrasonic wave that is received by the receiving device after propagating over a round-trip distance between the ultrasonic sensor and the object. The threshold adjustment section reduces the first threshold, when the output voltage corresponding to the calculated sound pressure is less than a second threshold that is greater the first threshold.
摘要翻译： 超声波传感器包括发送装置，接收装置和电路装置。 当接收装置的输出电压等于或大于第一阈值时，电路装置确定接收装置接收从对象反射的超声波。 电路装置包括：湿度检测部，被配置为检测发送和接收装置的环境湿度;以及阈值调整部，其被配置为基于检测到的环境湿度来计算由接收装置接收的超声波的声压 在超声波传感器和物体之间的往返距离上传播。 当与计算出的声压相对应的输出电压小于第一阈值以上的第二阈值时，阈值调节部分减小第一阈值。
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公开(公告)号：US08616061B2
公开(公告)日：2013-12-31
申请号：US13425460
申请日：2012-03-21
申请人： Makiko Sugiura , Yasuyuki Okuda , Takaaki Kawai , Takahiko Yoshida , Hisanaga Matsuoka , Toshiki Isogai , Mitsuyasu Matsuura
发明人： Makiko Sugiura , Yasuyuki Okuda , Takaaki Kawai , Takahiko Yoshida , Hisanaga Matsuoka , Toshiki Isogai , Mitsuyasu Matsuura
CPC分类号： G01S7/52004 , G01S7/52 , G01S7/52006 , G01S7/521 , G01S15/003 , G01S15/876 , G01S15/931 , G01S2015/939
摘要： An ultrasonic sensor includes a transmitting device, a receiving device, and a circuit device. The circuit device determines that the receiving device receives an ultrasonic wave reflected from an object, when an output voltage of the receiving device is equal to or greater than a first threshold. The circuit device includes a humidity detection section configured to detect an ambient humidity of the transmitting and receiving devices and a threshold adjustment section configured to calculate, based on the detected ambient humidity, a sound pressure of the ultrasonic wave that is received by the receiving device after propagating over a round-trip distance between the ultrasonic sensor and the object. The threshold adjustment section reduces the first threshold, when the output voltage corresponding to the calculated sound pressure is less than a second threshold that is greater the first threshold.
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公开(公告)号：US20100220551A1
公开(公告)日：2010-09-02
申请号：US12656663
申请日：2010-02-12
CPC分类号： G01S7/521 , G01S7/52003 , G01S7/52006 , G01S7/524 , G01S7/527 , G01S7/539 , G01S15/101 , G01S15/42 , G01S15/87 , G01S15/931 , G01S2015/938
摘要： In an obstacle detection system, a wave transmitted by a transmitting element and received by receiving elements as a receiving wave includes extraneous waves, which are reflection waves from other than an obstacle, and obstacle reflection waves from an obstacle. It is determined that, an obstacle is present, if the reflection waves are detected as having an amplitude (voltage) greater than a threshold level and a reception time difference between time points at which the amplitude exceeds threshold level at the receiving elements is less than a predetermined time.
摘要翻译： 在障碍物检测系统中，由发送元件发送并由接收元件作为接收波接收的波包括作为来自障碍物的反射波的外来波和来自障碍物的障碍物反射波。 确定存在障碍物，如果反射波被检测为具有大于阈值电平的幅度（电压），并且在接收元件处振幅超过阈值电平的时间点之间的接收时间差小于 一个预定的时间。
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