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1.发明授权
公开(公告)号：US5327345A
公开(公告)日：1994-07-05
申请号：US656792
申请日：1991-02-15
CPC分类号： E02F3/847 , E01C19/006 , E01C19/008 , E02F3/842 , G01S15/10 , G01S7/52004 , G01S2007/52014
摘要： An ultrasonic sensor for a construction implement is disclosed which provides an indication of the position of the sensor relative to a reference surface in two dimensions. In a preferred embodiment of the invention, a pair of sensors are positioned a predetermined distance from one another to transmit and receive ultrasonic waves to measure the time it takes the waves to travel to the reference surface and be reflected back to the ultrasonic transducers. Additionally, a transducer is disclosed which detects a side lobe of a acoustic wave transmitted by an acoustic transducer whereby the velocity of said acoustic pulse may be calculated.
摘要翻译： 公开了一种用于建筑工具的超声波传感器，其提供了传感器相对于参考表面在两个维度中的位置的指示。 在本发明的优选实施例中，一对传感器彼此相隔预定的距离，以发射和接收超声波，以测量波浪行进到参考表面并被反射回到超声波换能器的时间。 此外，公开了一种传感器，其检测由声换能器传输的声波的旁瓣，从而可以计算所述声脉冲的速度。
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2.发明授权
公开(公告)号：US5430651A
公开(公告)日：1995-07-04
申请号：US269838
申请日：1994-07-01
CPC分类号： E02F3/847 , E01C19/006 , E01C19/008 , E02F3/842 , G01S15/10 , G01S7/52004 , G01S2007/52014
摘要： An ultrasonic sensor for a construction implement is disclosed which provides an indication of the position of the sensor relative to a reference surface in two dimensions. In a preferred embodiment of the invention, a pair of sensors are positioned a predetermined distance from one another to transmit and receive ultrasonic waves to measure the time it takes the waves to travel to the reference surface and be reflected back to the ultrasonic transducers. Additionally, a transducer is disclosed which detects a side lobe of a acoustic wave transmitted by an acoustic transducer whereby the velocity of said acoustic pulse may be calculated.
摘要翻译： 公开了一种用于建筑工具的超声波传感器，其提供了传感器相对于参考表面在两个维度中的位置的指示。 在本发明的优选实施例中，一对传感器彼此相隔预定的距离，以发射和接收超声波，以测量波浪行进到参考表面并被反射回到超声换能器的时间。 此外，公开了一种传感器，其检测由声换能器传输的声波的旁瓣，从而可以计算所述声脉冲的速度。
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公开(公告)号：US06364028B1
公开(公告)日：2002-04-02
申请号：US09718762
申请日：2000-11-22
IPC分类号： A01B4106
CPC分类号： E02F3/847 , G01S2007/52014
摘要： A control system for establishing grade and elevation control for a tool of a construction apparatus for maintaining the vertical position of the tool relative to a reference includes a first ultrasonic transducer configured to be carried by the construction apparatus, with the first transducer transmitting and receiving acoustic waves, at least one reflector, a second ultrasonic transducer configured to be carried by the construction apparatus, with the second transducer receiving acoustic waves, and a controller coupled to the first and second ultrasonic transducers which drive the transducers to produce an acoustic wave and monitors the time reflections of the acoustic wave are respectively received by the first and second transducers. The controller determines the local speed of sound based on a first in time reflection received by the second ultrasonic transducer and determines the distance from the construction tool to a reference based on the local speed of sound and a second in time reflection received by both the first and second ultrasonic transducers. The controller produces at least one electrical signal as a function of the distance of the ultrasonic transducers from the reference. In preferred form, the controller communicates the signal to a positioning device, which signal actuates the positioning device to adjust the position of the construction tool with respect to the reference.
摘要翻译： 一种用于建立用于工具的工具的坡度和仰角控制的控制系统，用于维持工具相对于基准的垂直位置，包括构造成由施工设备承载的第一超声换能器，第一换能器发送和接收声学 波形，至少一个反射器，构造成由施工设备承载的第二超声波换能器，第二换能器接收声波，以及耦合到第一和第二超声换能器的控制器，其驱动换能器以产生声波和监视器 声波的时间反射分别由第一和第二换能器接收。 控制器基于由第二超声波换能器接收到的第一时间反射来确定本地的声速，并且基于本地的声速和基于时间反射的第二时间反射确定从施工工具到参考的距离， 和第二超声换能器。 控制器产生至少一个电信号作为超声波换能器与基准距离的函数。 在优选形式中，控制器将信号传送到定位装置，该信号致动定位装置以调整施工工具相对于基准的位置。
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公开(公告)号：US5559725A
公开(公告)日：1996-09-24
申请号：US319961
申请日：1994-10-07
摘要： A method and apparatus for controlling a trencher having a tractor that is propelled along terrain and a trenching implement adjustably mounted to the tractor at a rearward portion thereof with respect to movement of the tractor along the terrain includes monitoring movement of the tractor as it is propelled along terrain in order to survey the contour of the terrain and adjusting the position of the trenching implement with respect to the tractor as a function of the contour of the terrain in the vicinity of the trencher.
摘要翻译： 一种用于控制具有沿着地形推进的拖拉机的挖沟机的方法和装置，以及相对于拖拉机沿着地形的运动可调节地安装到拖拉机的后部的挖沟工具包括监测拖拉机被推进时的运动 沿着地形测量地形的轮廓并且相对于拖拉机调整挖沟工具的位置作为在挖坑器附近的地形轮廓的函数。
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公开(公告)号：US6152238A
公开(公告)日：2000-11-28
申请号：US159255
申请日：1998-09-23
CPC分类号： E02F3/847 , G01S2007/52014
摘要： A control system for establishing grade and elevation control for a tool of a construction apparatus for maintaining the vertical position of the tool relative to a reference includes a first ultrasonic transducer configured to be carried by the construction apparatus, with the first transducer transmitting and receiving acoustic waves, at least one reflector, a second ultrasonic transducer configured to be carried by the construction apparatus, with the second transducer receiving acoustic waves, and a controller coupled to the first and second ultrasonic transducers which drive the transducers to produce an acoustic wave and monitors the time reflections of the acoustic wave are respectively received by the first and second transducers. The controller determines the local speed of sound based on a first in time reflection received by the second ultrasonic transducer and determines the distance from the construction tool to a reference based on the local speed of sound and a second in time reflection received by both the first and second ultrasonic transducers. The controller produces at least one electrical signal as a function of the distance of the ultrasonic transducers from the reference. In preferred form, the controller communicates the signal to a positioning device, which signal actuates the positioning device to adjust the position of the construction tool with respect to the reference.
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公开(公告)号：US5742069A
公开(公告)日：1998-04-21
申请号：US619926
申请日：1996-03-20
CPC分类号： G01B11/26 , G01C15/006 , G01S3/784
摘要： A digitally filtered laser receiver includes a plurality of radiation sensors spacially arranged in a manner which identifies a relative position of the sensors with respect to a rotating laser radiation source. The digitally filtered laser receiver includes a microcomputer having inputs which are responsive to impingement of the sensors by radiation. The microcomputer is programmed to process data from the inputs only when the radiation sensors are impinged by radiation from the rotating laser radiation source. The microcomputer processes the data and provides an output which is indicative of the position of the rotating laser radiation source and the sensors.
摘要翻译： 数字滤波的激光接收机包括以识别传感器相对于旋转激光辐射源的相对位置的方式空间地布置的多个辐射传感器。 数字滤波的激光接收机包括具有可通过辐射冲击传感器的输入的微型计算机。 只有当辐射传感器被来自旋转激光辐射源的辐射照射时，微计算机才被编程为仅从输入处理数据。 微处理器处理数据并提供表示旋转的激光辐射源和传感器的位置的输出。
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