公开(公告)号：US20070124032A1

公开(公告)日：2007-05-31

申请号：US11291706

申请日：2005-11-30

申请人： Michael Elgersma ,  Daniel Johnson ,  Mason Peck ,  Brian Underhill ,  Gunter Stein ,  Blaise Morton ,  Brian Hamilton

发明人： Michael Elgersma ,  Daniel Johnson ,  Mason Peck ,  Brian Underhill ,  Gunter Stein ,  Blaise Morton ,  Brian Hamilton

IPC分类号： G01C23/00 ,  G06F17/00

CPC分类号： G05D1/0883 ,  B64G1/286

摘要： A control system of a spacecraft for controlling two or more sets of collinear control moment gyroscopes (CMGs) comprises an attitude control system. The attitude control system is configured to receive a command to adjust an orientation of the spacecraft, determine an offset for a momentum disk for each of the two or more sets of CMGs that maximizes torque, determine a momentum needed from the two or more sets of CMGs to adjust the orientation of the spacecraft, and calculate a total torque needed by taking the derivative of the momentum. The control system further comprises a momentum actuator control processor coupled to the attitude control system, the momentum actuator control processor configured to calculate a required gimbal movement for each of the CMGs in each of the two or more sets of collinear CMGs from total torque.

摘要翻译： 用于控制两组或更多套共线控制力矩陀螺仪（CMG）的航天器的控制系统包括姿态控制系统。 姿态控制系统被配置为接收调整航天器的方向的命令，确定用于使扭矩最大化的两组或更多组CMG中的每一个的动量盘的偏移，确定从两组或更多组 CMG调整航天器的方向，并计算通过采取动量的导数所需的总转矩。 控制系统还包括耦合到姿态控制系统的动量致动器控制处理器，动量致动器控制处理器被配置为针对来自总转矩的两组或多组共线CMG中的每一个中的每个CMG计算所需的万向运动。

公开(公告)号：US20050007997A1

公开(公告)日：2005-01-13

申请号：US10616653

申请日：2003-07-09

申请人： Blaise Morton ,  Yi-Ju Chao

发明人： Blaise Morton ,  Yi-Ju Chao

IPC分类号： H04L12/28 ,  H04L12/56

CPC分类号： H04L45/302 ,  H04L45/02 ,  H04L45/38 ,  H04L45/44

摘要： The present invention discloses a distributed control method and system for routing message flows on a network. Each node locally computes a routing table and cooperatively exchanges control information to achieve network stability, robustness and acyclic flows. This distributed control method introduces potential functions for each class of messages to each target nodes, defined on the network nodes for determining the routes of message flows. The difference of potentials for messages of a class between a pair of neighbor nodes represents the direction and the quantity of the message flow that should be sent between the pair of neighbor nodes. Each node performs the disclosed method by, first, delivering exogenous input information for each message class to the target nodes of the messages, secondly, computing potential values for all message classes, and finally, each node computing a routing table based on the potential differences to those of its neighbor nodes and/or weights on its neighbor links.

摘要翻译： 本发明公开了一种用于在网络上路由消息流的分布式控制方法和系统。 每个节点本地计算路由表，并协同交换控制信息，以实现网络稳定性，鲁棒性和非循环流。 该分布式控制方法为每个目标节点引入每类消息的潜在功能，在网络节点上定义，以确定消息流的路由。 一对邻居节点之间的类的消息的电位差异表示应该在一对邻居节点之间发送的消息流的方向和数量。 每个节点通过以下方式执行所公开的方法：首先，将每个消息类别的外生输入信息传递到消息的目标节点，其次，计算所有消息类别的潜在值，最后，每个节点基于潜在差异来计算路由表 对其邻居节点和/或其邻居链路上的权重。