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    • 2. 发明申请
    • METHOD AND SYSTEM FOR SPACECRAFT POWER ACQUISITION USING SINGLE-AXIS SLIT SUN SENSOR
    • 使用单轴SLIT SUN传感器进行功率采集的方法和系统
    • US20080135686A1
    • 2008-06-12
    • US11608140
    • 2006-12-07
    • Hanching Grant WangSadek W. MansourDouglas J. Bender
    • Hanching Grant WangSadek W. MansourDouglas J. Bender
    • B64G1/36
    • B64G1/363B64G1/44G01S3/7862
    • A method for spacecraft power acquisition is provided using single-axis slit sun sensors for both wing-stowed and wing-deployed spacecraft configurations. The method for wing-deployed spacecraft includes initializing a solar wing of the spacecraft to search for sun; rotating the spacecraft about a search axis substantially parallel to a slit sun sensor field of view; monitoring the slit sun sensor for a time of arrival signal; and wherein, if the time of arrival signal occurs, the spacecraft is rotated along the search axis to an orientation where the time of arrival signal occurred and the spacecraft is placed in stable rotation about an axis substantially parallel to a solar wing longitudinal axis; and for a non-occurrence of the time of arrival signal, the spacecraft is slewed about a keyhole axis substantially perpendicular to the search axis to move the sun away from a keyhole.
    • 使用单轴狭缝太阳传感器提供飞行器功率采集的方法,用于机翼收起和机翼部署的航天器配置。 机翼部署的航天器的方法包括初始化太空飞船的太阳能翼,以搜寻太阳; 围绕基本上平行于狭缝太阳传感器视场的搜索轴旋转航天器; 监测狭缝太阳传感器的到达时间信号; 并且其中,如果到达时间信号发生,则航天器沿着搜索轴旋转到出现时间到达信号的方向,并且航天器围绕基本上平行于太阳翼纵向轴线的轴线被稳定地旋转; 并且为了不发生到达时间信号,航天器围绕基本上垂直于搜索轴线的键孔轴旋转,以将太阳从锁孔移开。
    • 3. 发明授权
    • Method and apparatus for compensating for solar torque transients on a
satellite during a solar eclipse
    • 在日食期间补偿卫星上太阳能转矩瞬变的方法和装置
    • US5337981A
    • 1994-08-16
    • US800775
    • 1991-11-27
    • Douglas J. Bender
    • Douglas J. Bender
    • B64G1/24B64G1/36G05D1/08
    • G05D1/0883B64G1/24B64G1/36
    • This invention discloses a method for determining when an orbiting satellite (10) is eclipsed from the sun in order to remove control torques to the satellite (10) which compensate for the disturbance of solar pressure on the satellite (10). A current measuring device (46) measures the current traveling through a particular circuit associated with the satellite (10) which is indicative of the satellite batteries being discharged, as would occur during an eclipse. The measured current is applied to a threshold logic circuit (48) which sends a signal to a control compensator (36) if the measured current exceeds a predetermined threshold level. Consequently, the compensation provided by the control compensator (36) removes the compensation for compensating for solar pressure when the satellite (10) is in an eclipse. In a second implementation, the threshold logic circuit (48) is replaced with a proportionality logic circuit to compensate for the effects of partial eclipses.
    • 本发明公开了一种确定轨道卫星何时从太阳中掉下来的方法,以便去除对卫星(10)的控制力矩,以补偿卫星(10)上太阳能压力的干扰。 电流测量装置(46)测量在与食物相关联的特定电路(10)的电流,其指示卫星电池被排出,如在日食期间将发生的那样。 测量的电流被施加到门限逻辑电路(48),如果所测量的电流超过预定的阈值电平,则逻辑电路向控制补偿器(36)发送信号。 因此,控制补偿器(36)提供的补偿消除了当卫星(10)处于日食时补偿太阳能压力的补偿。 在第二实施例中,阈值逻辑电路(48)被替换为比例逻辑电路以补偿部分日食的影响。
    • 5. 发明授权
    • Spacecraft acquisition of sun pointing
    • 航天器收购太阳指向
    • US6019320A
    • 2000-02-01
    • US153123
    • 1998-09-15
    • Piyush R. ShahDouglas J. Bender
    • Piyush R. ShahDouglas J. Bender
    • B64G1/24B64G1/28B64G1/36G05D1/08
    • G05D1/0883B64G1/24B64G1/283B64G1/288B64G1/36B64G1/363B64G1/365B64G1/285B64G2001/245
    • A system and method for acquiring Sun pointing in a three-axis stabilized spacecraft including slewing at least one solar wing until the Sun is detected, determining an initial Sun vector, performing one or more rotations of the spacecraft body so as to bring the instantaneous Sun vector coincident with a preferred final Sun vector, at least one rotation about an optimal axis, and slewing at least one solar wing to a preferred attitude relative to the Sun. In one embodiment, the optimal axis is chosen so as to minimize the time required to achieve an optimal thermal attitude. In another embodiment, the optimal axis is chosen so as to minimize the time required to align the instantaneous Sun vector with the final desired Sun vector. In a further embodiment, the optimal axis is chosen so as to maintain Earth lock.
    • 一种用于获取Sun指向三轴稳定的航天器的系统和方法,包括至少一个太阳翼的回转,直到检测到太阳,确定初始的太阳矢量,执行航天器主体的一个或多个旋转,以使瞬时的太阳 与优选的最后的Sun矢量重合的矢量,围绕最佳轴线至少一个旋转,并且将至少一个太阳翼旋转到相对于太阳的优选姿态。 在一个实施例中,选择最佳轴线以便最小化实现最佳热姿态所需的时间。 在另一个实施例中,选择最佳轴使得将瞬时的Sun矢量与最终期望的Sun矢量对准所需的时间最小化。 在另一个实施例中,选择最佳轴线以便保持接地锁定。
    • 6. 发明授权
    • Gimbal control system
    • 云台控制系统
    • US5557285A
    • 1996-09-17
    • US185346
    • 1994-01-24
    • Douglas J. BenderStuart F. BockmanBruce N. EyerlyJohn J. Anagnost
    • Douglas J. BenderStuart F. BockmanBruce N. EyerlyJohn J. Anagnost
    • H01Q3/08B64G1/22B64G1/24B64G1/28B64G1/36G01S3/42H01Q1/18H01Q1/28H01Q3/00
    • H01Q1/18B64G1/22B64G1/24B64G1/288B64G1/36
    • A multi-loop control system for a gimballed antenna that employs devices for measuring both absolute line-of-sight (an autotrack receiver or beacon tracker) and relative angular position (a resolver). The control system uses both signals simultaneously, thereby increasing the performance and pointing accuracy capability. Two control loops operate simultaneously to provide for optimum performance. The first loop is an inner high-bandwidth control loop that uses the relative gimbal angle measurement to control pointing of the antenna along a precommanded profile. The inner loop may run alone to provide for coarse pointing. When available, the line-of sight measurement is used in a low-bandwidth outer loop to provide corrections to the command profile of the inner loop. Control logic is provided that allows switching between several control modes. By using the present invention, antenna tracking control performance is maximized, especially in the presence of attitude disturbances of a spacecraft or significant flexible interactions.
    • 用于测量绝对视线(自动跟踪接收机或信标跟踪器)和相对角位置(分解器)的设备的万向天线的多回路控制系统。 控制系统同时使用两个信号,从而提高性能和指点精度。 两个控制回路同时工作以提供最佳性能。 第一个环路是一个内部高带宽控制环路,它利用相对的万向角测量来控制天线沿​​着预先命令的轮廓的指向。 内循环可以单独运行以提供粗略指向。 当可用时,视距测量用于低带宽外部环路,以对内部循环的命令曲线进行校正。 提供了允许在几种控制模式之间切换的控制逻辑。 通过使用本发明,天线跟踪控制性能最大化,特别是在存在航天器的姿态干扰或显着灵活的相互作用的情况下。
    • 7. 发明授权
    • Precision platform pointing controller for a dual-spin spacecraft
    • 双旋转飞行器的精准平台指向控制器
    • US4752884A
    • 1988-06-21
    • US756867
    • 1985-07-18
    • Loren I. SlaferDouglas J. BenderJohn F. Yocum
    • Loren I. SlaferDouglas J. BenderJohn F. Yocum
    • B64G1/24B64G1/28B64G1/36G01C21/24G05D1/08
    • B64G1/36B64G1/24B64G1/281G05D1/0883
    • A pointing apparatus for a dual-spin spacecraft utilizing a first sensor for sensing the time of arrival of an inertial attitude reference as the spinning portion of the spacecraft rotates, and a second sensor for sensing the time of arrival of an index reference which relates the position of the despun portion with the spinning portion. A digital processor estimates the spin rate and phase of the spinning portion from the inertial attitude reference time of arrival, estimates the relative spin rate and phase between the spinning portion and the despun portion from the index reference time of arrival, and estimates the bearing friction bias torque on the motor means which controls the pointing direction of the despun portion of the spacecraft. The spinning portion spin rate and phase estimates are added with the relative spin rate and phase estimates to produce an estimate of the despun portion spin rate and phase, and the despun portion spin rate and phase estimates and the friction bias torque estimates are subtracted from commanded despun portion spin rate, phase and friction bias torque states. A torque command is generated for controlling the motor means from the subtracted estimates.
    • 一种双旋转航天器的指示装置,其利用第一传感器,用于在飞行器的旋转部旋转时感测惯性姿态基准的到达时间;以及第二传感器,用于感测索引基准的到达时间, 剥离部分与纺纱部分的位置。 数字处理器从惯性姿态基准到达时间估计纺丝部分的旋转速度和相位,从指数参考到达时间估计纺纱部分和脱模部分之间的相对旋转速率和相位,并估计轴承摩擦 电动机装置上的偏置扭矩,其控制航天器的去除部分的指示方向。 旋转部分旋转速率和相位估计值加上相对旋转速率和相位估计值,以产生脱泡部分旋转速率和相位的估计,并且从命令中减去脱泡部分旋转速率和相位估计值和摩擦偏置扭矩估计值 绝缘部分旋转速率,相位和摩擦偏置扭矩状态。 产生用于从减去的估计值来控制电动机装置的转矩指令。
    • 8. 发明授权
    • Method and system for spacecraft power acquisition using single-axis slit sun sensor
    • 使用单轴狭缝太阳传感器进行航天器功率采集的方法和系统
    • US07681841B2
    • 2010-03-23
    • US11608140
    • 2006-12-07
    • Hanching Grant WangSadek W. MansourDouglas J. Bender
    • Hanching Grant WangSadek W. MansourDouglas J. Bender
    • B64G1/36
    • B64G1/363B64G1/44G01S3/7862
    • A method for spacecraft power acquisition is provided using single-axis slit sun sensors for both wing-stowed and wing-deployed spacecraft configurations. The method for wing-deployed spacecraft includes initializing a solar wing of the spacecraft to search for sun; rotating the spacecraft about a search axis substantially parallel to a slit sun sensor field of view; monitoring the slit sun sensor for a time of arrival signal; and wherein, if the time of arrival signal occurs, the spacecraft is rotated along the search axis to an orientation where the time of arrival signal occurred and the spacecraft is placed in stable rotation about an axis substantially parallel to a solar wing longitudinal axis; and for a non-occurrence of the time of arrival signal, the spacecraft is slewed about a keyhole axis substantially perpendicular to the search axis to move the sun away from a keyhole.
    • 使用单轴狭缝太阳传感器提供飞行器功率采集的方法,用于机翼收起和机翼部署的航天器配置。 机翼部署的航天器的方法包括初始化太空飞船的太阳能翼,以搜寻太阳; 围绕基本上平行于狭缝太阳传感器视场的搜索轴旋转航天器; 监测狭缝太阳传感器的到达时间信号; 并且其中,如果到达时间信号发生,则航天器沿着搜索轴旋转到出现时间到达信号的方向,并且航天器围绕基本上平行于太阳翼纵向轴线的轴线被稳定地旋转; 并且为了不发生到达时间信号,航天器围绕基本上垂直于搜索轴线的键孔轴旋转,以将太阳从锁孔移开。