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公开(公告)号：US5606313A
公开(公告)日：1997-02-25
申请号：US558619
申请日：1995-11-14
CPC分类号： H04M19/08 , H04W52/0229 , Y02B60/50
摘要： An electronic tag (10) receives a data message (18) that has a wake-up section (20) followed by a session section (22). The interrogation signal which carries the data message encodes the wake-up section (20) differently from the session section (22). A power manager (28) decodes the wake-up section (20) using a very low power decoder (34) that remains energized during a standby state. When the power manager (28) detects a predetermined identification code (26), it controls a switching circuit (32) to energize a controller (30). The controller (30) may then decode, process, and respond to information conveyed during the session section (22). If the power manager (28) does not detect the identification code (26), the controller (30) remains de-energized. The power manager (28) also includes a synchronizer (38) which determines when a preamble (24) is detected, and an ID decoder (40) that determines when the wake-up section (20) conveys the predetermined identification code (26).
摘要翻译： 电子标签（10）接收具有唤醒部分（20）的跟随着会话部分（22）的数据消息（18）。 携带数据消息的询问信号与会话部分（22）不同地编码唤醒部分（20）。 功率管理器（28）使用在待机状态期间保持通电的极低功率解码器（34）来解码唤醒部分（20）。 当功率管理器（28）检测到预定的识别码（26）时，控制切换电路（32）使控制器（30）通电。 然后，控制器（30）可以解码，处理和响应在会话段（22）期间传送的信息。 如果电源管理器（28）没有检测到识别码（26），则控制器（30）保持断电。 功率管理器（28）还包括一个确定何时检测到前置码（24）的同步器（38），以及一个确定唤醒部分（20）何时传送预定识别码（26）的ID解码器（40） 。
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公开(公告)号：US5463854A
公开(公告)日：1995-11-07
申请号：US190344
申请日：1994-02-01
CPC分类号： G05B13/024 , A01D41/141 , A01D75/287
摘要： A method and apparatus for controlling an agricultural harvester having a cut crop receiving header coupled to a hydraulic cylinder. The header applies a force against the ground that is adjusted by applying pressure to the cylinder. Proportional raise and lower valves control the pressure in the cylinder. A pressure signal representing cylinder pressure is received. The difference between the measured pressure and the setpoint is used to compute input signals, which are transmitted to the valves. Cylinder pressure is maintained substantially at a setpoint, the setpoint being adjustable in response to varying terrain. The setpoint is set to a first value in falling terrain and a second value in rising terrain. At the top of a hill, the setpoint is reduced below the first value until ground contact is regained, and the pressure is recharged above the second value. Alternatively, header height may be measured and the valves controlled to maintain header position substantially constant relative to the ground or the harvester frame. Header lateral tilt is controlled while controlling either cylinder pressure or header height. A resume function returns the header from a raised position to a cutting position at the beginning of a new row.
摘要翻译： 一种用于控制农业收割机的方法和装置，其具有联接到液压缸的切割作物接收头。 头部通过向气缸施加压力而对地面施加力。 比例上升阀和下阀控制气缸中的压力。 接收表示气缸压力的压力信号。 测量压力和设定值之间的差异用于计算传输到阀门的输入信号。 气缸压力基本保持在设定点，该设定点可响应于变化的地形而调节。 设定值在下降的地形中设置为第一个值，而在上升的地形中设置为第二个值。 在山丘顶部，设定值降低到第一个值以下，直到接地点重新获得，并将压力再次充电到高于第二个值。 或者，可以测量头部高度，并且控制阀门以使头部位置相对于地面或收割机框架基本上保持恒定。 在控制气缸压力或头部高度的同时控制头部横向倾斜。 恢复功能将标题从升高的位置返回到新行开始处的切割位置。
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公开(公告)号：US5535577A
公开(公告)日：1996-07-16
申请号：US462183
申请日：1995-06-05
CPC分类号： G05B13/024 , A01D41/141 , A01D75/287
摘要： A method and apparatus for controlling an agricultural harvester having a cut crop receiving header coupled to a hydraulic cylinder. The header applies a force against the ground that is adjusted by applying pressure to the cylinder. Proportional raise and lower valves control the pressure in the cylinder. A pressure signal representing cylinder pressure is received. The difference between the measured pressure and the setpoint is used to compute input signals, which are transmitted to the valves. Cylinder pressure is maintained substantially at a setpoint, the setpoint being adjustable in response to varying terrain. The setpoint is set to a first value in falling terrain and a second value in rising terrain. At the top of a hill, the setpoint is reduced below the first value until ground contact is regained, and the pressure is recharged above the second value. Alternatively, header height may be measured and the valves controlled to maintain header position substantially constant relative to the ground or the harvester frame. Header lateral tilt is controlled while controlling either cylinder pressure or header height. A resume function returns the header from a raised position to a cutting position at the beginning of a new row.
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公开(公告)号：US4849600A
公开(公告)日：1989-07-18
申请号：US234971
申请日：1988-08-22
CPC分类号： B23K11/252
摘要： A method for welding two pieces includes juxtaposing the pieces and monitoring the temperature of the region to be welded. Energy is applied at a time rate sufficient to raise the temperature of the region to be welded at a rate exceeding a predetermined value. Once a predetermined temperature is reached, that temperature is held for a predetermined time. The rate of rise of temperature is 70% of the final or predetermined temperature in 20% of the predetermined time. After the weld is made, the rate of fall of the temperature exceeds a predetermined value. Quenching may be used to achieve the desired rate of fall.
摘要翻译： 用于焊接两件的方法包括将件并列并监测待焊接区域的温度。 以足以以超过预定值的速率升高待焊接区域的温度的时间速率施加能量。 一旦达到预定温度，该温度保持预定时间。 在预定时间的20％中，温度的上升率为最终或预定温度的70％。 焊接后，温度的下降速度超过预定值。 淬火可用于达到所需的坠落率。
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