公开(公告)号：US20090116579A1

公开(公告)日：2009-05-07

申请号：US11938039

申请日：2007-11-09

申请人： Arya Abraham ,  Brian Michael Courtney ,  Jonathan H. Ference ,  Kevin Kocher ,  Jeremy Thomas Neyhart ,  Yash Shah

发明人： Arya Abraham ,  Brian Michael Courtney ,  Jonathan H. Ference ,  Kevin Kocher ,  Jeremy Thomas Neyhart ,  Yash Shah

IPC分类号： H04L27/00

CPC分类号： H04L12/1854 ,  H04L12/1868 ,  H05B37/0254

摘要： The present invention provides a reliable communication protocol that provides multicasting of digital messages on an interprocessor link coupling together a plurality of processors of a load control system. Preferably, the load control system includes a plurality of sub-systems, with a number of the processors in each sub-system. The processors are each characterized by a unique individual address, while all of the processors of a single sub-system are characterized by an identical multicast address. The processors re-transmit digital messages on the communication link if a target address of the digital message is equal to the multicast address. The processors determine if acknowledgement messages are received from each of the processors from which acknowledgement messages were expected during a predetermined amount of time after transmitting an initial digital message, and transmit a retry message in response to determining that the acknowledgement messages were not received.

摘要翻译： 本发明提供了一种可靠的通信协议，其在耦合到负载控制系统的多个处理器的处理器间链路上提供数字消息的多播。 优选地，负载控制系统包括多个子系统，每个子系统中具有多个处理器。 每个处理器的特征在于唯一的单独地址，而单个子系统的所有处理器的特征在于相同的多播地址。 如果数字消息的目标地址等于多播地址，则处理器在通信链路上重新发送数字消息。 处理器确定在发送初始数字消息之后的预定量的时间期间是否从预期的期望消息中的每个处理器接收到确认消息，并且响应于确定确认消息未被接收而发送重试消息。