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公开(公告)号：EP3314995A1
公开(公告)日：2018-05-02
申请号：EP17193563.8
申请日：2017-09-27
申请人： Deere & Company
IPC分类号： A01B63/111 , A01C7/20
CPC分类号： G01B7/26 , A01B63/1112 , A01B79/005 , A01C7/203
摘要： Embodiments herein relate to a time domain depth sensor system (100) and method for determining a depth of a ground engaging device (220) in soil. The sensor system may include a signal transmission element (104) arranged on an outer periphery of a ground engaging device that is adapted to penetrate soil. The signal transmission element can be arranged to receive and transmit an electrical signal that is responsive to impedance discontinuities detected by a pulse detector (122). The pulse detector is configured to detect a first and a second reflected signal corresponding to a sensed impedance discontinuities at a first and a second soil location. An electronic data processor (132) is communicatively coupled the pulse detector and is configured to determine the depth of the ground engaging device in the soil based on a difference between a first time of propagation of the first reflected signal and a second time of propagation of the second reflected signal.
摘要翻译： 本文的实施例涉及用于确定土壤中地面接合装置（220）的深度的时域深度传感器系统（100）和方法。 传感器系统可以包括布置在适于穿透土壤的地面接合装置的外周上的信号传输元件（104）。 信号传输元件可以布置成接收和传输响应于由脉冲检测器（122）检测到的阻抗不连续性的电信号。 脉冲检测器被配置为检测对应于第一和第二土壤位置处的感测阻抗不连续性的第一和第二反射信号。 电子数据处理器（132）通信地耦合脉冲检测器并且被配置为基于第一反射信号的第一传播时间和第二传播时间之间的差异来确定土壤中地面接合装置的深度 第二个反射信号。
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公开(公告)号：EP3307047A1
公开(公告)日：2018-04-18
申请号：EP16802255.6
申请日：2016-06-03
发明人： CALLEIJA, Mark , SUKKARIEH, Salah
CPC分类号： A01B39/18 , A01B51/02 , A01B63/004 , A01B63/023 , A01B63/104 , A01B63/1112 , A01B63/12 , A01B69/001 , A01B79/005 , A01M21/02 , A01M21/04 , A01M21/043
摘要： This invention relates to an apparatus for controlling weeds. The apparatus includes a tine formation adapted to remove or disrupt targeted weeds, and a tine support assembly adapted to support the tine for movement about a first control axis in a generally vertical direction between an engaged position wherein the tine formation in use contacts a ground surface for removal or disruption of targeted weeds and a disengaged position wherein the tine formation is substantially retracted from the ground surface. The tine support assembly is further adapted to support the tine for movement about a second control axis in a generally horizontal direction. The tine support assembly further includes a first actuation mechanism adapted to effect movement of the tine about the first control axis, and a second actuation mechanism adapted to effect movement of the tine about the second control axis. The apparatus also includes a sensing system for sensing aspects of an environment and generating data indicative thereof, and a classification system for identifying target weeds within the environment on the basis of the data from the sensing system. A control system is adapted to activate the first and second actuation mechanisms of the tine support assembly in accordance with a predetermined control logic thereby sequentially to position the tine for disruptive contact with the targeted weeds.
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公开(公告)号：EP2462794A1
公开(公告)日：2012-06-13
申请号：EP11192836.2
申请日：2011-12-09
申请人： Heiss, Andreas
发明人： Heiss, Andreas
IPC分类号： A01B63/10 , A01B63/111 , A01C9/00
CPC分类号： A01B63/1112 , A01B63/1006 , A01C9/00
摘要： Landwirtschaftliche Maschine (1) mit wenigstens einem Werkzeug (2), wobei die landwirtschaftliche Maschine (1) an eine Deichsel oder einen Kraftheber eines Schleppers (10) anschließbar ist, und wobei das Werkzeug (2) und/oder die landwirtschaftliche Maschine (1) über wenigstens einen Hubzylinder (9) aushebbar und absenkbar ist, dadurch gekennzeichnet, dass an der Maschine (1) eine Vorrichtung (19) zur Regelung der Arbeitstiefe des wenigstens einen Werkzeugs (2) angeordnet ist, mittels welcher im Betrieb der Maschine (1) der wenigstens eine Hubzylinder (9) ansteuerbar ist.
摘要翻译： 农业机械（1）具有通过提升缸（9）升降的犁耕工具（2）。 设置有用于检测耕作工具的工作深度的传感器（20）。 提供控制单元（19），用于在使用提升气缸的操作期间控制犁耕工具的工作深度。
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公开(公告)号：EP0459336B1
公开(公告)日：1995-08-23
申请号：EP91108554.6
申请日：1991-05-27
申请人： DEERE & COMPANY
IPC分类号： G01S7/52 , G01S15/88 , G01S15/10 , A01B63/111
CPC分类号： A01B63/111 , A01B63/1112 , A01B63/114 , G01S7/527 , G01S7/539 , G01S15/10 , G01S15/88
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公开(公告)号：EP0653644A2
公开(公告)日：1995-05-17
申请号：EP95102041.1
申请日：1991-05-27
申请人： DEERE & COMPANY
发明人： Phelan, James J.
IPC分类号： G01S15/88 , G01S7/52 , G01S15/10 , A01B63/111
CPC分类号： A01B63/111 , A01B63/1112 , A01B63/114 , G01S7/527 , G01S7/539 , G01S15/10 , G01S15/88
摘要： A distance sensing system (10) includes an ultrasonic transducer (XM1), a transceiver (12) and a microcontroller-based signal processing unit (14). The transducer (12) periodically generates and directs towards the terrain a dual frequency ultrasonic signal. Echo signals from the ground and/or any intervening crop or trash are reflected back to the transducer (12) and are processed. The system generates amplified and filtered echo envelope signals. Leading and trailing edge times are determined as the times the echo signals cross a threshold value which is a certain proportion of a maximum echo amplitude value. A near distance value is derived from the leading edge time of the first echo which exceeds a minimum amplitude. A far distance value is determined as the trailing edge time of the last echo signal which has an amplitude which exceeds a certain value. Multiple echo time and amplitude values are derived from the maximum amplitude echo. These values are used to prevent echoes which occur after the multiple echo time with less than a certain amplitude from being used in the determination of the far distance value. This far distance value represents the distance to ground and weaker, earlier echoes from trash or crop and later, multiple echoes may be ignored.
摘要翻译： 距离感测系统（10）包括超声波换能器（XM1），收发器（12）和基于微控制器的信号处理单元（14）。 换能器（12）周期性地向地形产生并指向双频超声波信号。 来自地面和/或任何中间作物或垃圾的回波信号被反射回到换能器（12）并被处理。 该系统产生放大和滤波的回波包络信号。 前沿和后沿时间被确定为回波信号越过最大回波振幅值的一定比例的阈值的次数。 距离超过最小幅度的第一回波的前沿时间导出近距离值。 远距离值被确定为具有超过一定值的幅度的最后一个回波信号的后沿时间。 多个回波时间和振幅值是从最大振幅回波得出的。 这些值用于防止在确定远距离值之后使用具有小于一定幅度的多重回波时间之后发生的回波。 这个远距离值代表距离地面和较弱的，较早的回声来自垃圾或作物，后来多个回声可能被忽略。
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公开(公告)号：EP0459336A1
公开(公告)日：1991-12-04
申请号：EP91108554.6
申请日：1991-05-27
申请人： DEERE & COMPANY
IPC分类号： G01S7/52 , G01S15/88 , G01S15/10 , A01B63/111
CPC分类号： A01B63/111 , A01B63/1112 , A01B63/114 , G01S7/527 , G01S7/539 , G01S15/10 , G01S15/88
摘要： A distance sensing system (10) includes an ultrasonic transducer (XM1), a transceiver (12) and a microcontroller-based signal processing unit (14). The transducer (12) periodically generates and directs towards the terrain a dual frequency ultrasonic signal. Echo signals from the ground and/or any intervening crop or trash are reflected back to the transducer (12) and are processed. The system generates amplified and filtered echo envelope signals. Leading and trailing edge times are determined as the times the echo signals cross a threshold value which is a certain proportion of a maximum echo amplitude value. A near distance value is derived from the leading edge time of the first echo which exceeds a minimum amplitude. A far distance value is determined as the trailing edge time of the last echo signal which has an amplitude which exceeds a certain value. Multiple echo time and amplitude values are derived from the maximum amplitude echo. These values are used to prevent echoes which occur after the multiple echo time with less than a certain amplitude from being used in the determination of the far distance value. This far distance value represents the distance to ground and weaker, earlier echoes from trash or crop and later, multiple echoes may be ignored.
摘要翻译： 距离感测系统（10）包括超声波换能器（XM1），收发器（12）和基于微控制器的信号处理单元（14）。 换能器（12）周期性地向地形产生并指向双频超声波信号。 来自地面和/或任何中间作物或垃圾的回波信号被反射回到换能器（12）并被处理。 该系统产生放大和滤波的回波包络信号。 前沿和后沿时间被确定为回波信号越过最大回波振幅值的一定比例的阈值的次数。 距离超过最小幅度的第一回波的前沿时间导出近距离值。 远距离值被确定为具有超过一定值的幅度的最后一个回波信号的后沿时间。 多个回波时间和振幅值是从最大振幅回波得出的。 这些值用于防止在确定远距离值之后使用具有小于一定幅度的多重回波时间后发生的回波。 这个远距离值代表距离地面和较弱的，较早的回声来自垃圾或作物，后来多个回声可能被忽略。
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