发明申请
- 专利标题: COMMUNICATION METHOD AND APPARATUS FOR THE EFFICIENT AND RELIABLE TRANSMISSION OF TT ETHERNET MESSAGES
- 专利标题(中): 用于TT以太网消息有效和可靠传输的通信方法和设备
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申请号: US12595414申请日: 2008-04-08
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公开(公告)号: US20100281130A1公开(公告)日: 2010-11-04
- 发明人: Hermann Kopetz , Wilfried Steiner , Gunther Bauer , Matthias Wachter , Brendan Hall , Michael Paulitsch
- 申请人: Hermann Kopetz , Wilfried Steiner , Gunther Bauer , Matthias Wachter , Brendan Hall , Michael Paulitsch
- 申请人地址: AT Baden-Siegenfeld
- 专利权人: FTS COMPUTERTECHNIK GMBH
- 当前专利权人: FTS COMPUTERTECHNIK GMBH
- 当前专利权人地址: AT Baden-Siegenfeld
- 优先权: ATA558/2007 20070411
- 国际申请: PCT/AT08/00126 WO 20080408
- 主分类号: G06F15/16
- IPC分类号: G06F15/16 ; H04L9/32
摘要:
The goal of the present invention is to improve the useful data efficiency and reliability in the use of commercially available ETHERNET controllers, in a distributed real time computer system, by a number of node computers communicating via one or more communication channels by means of TT ETHERNET messages. To achieve this goal, a distinction is made between the node computer send time (KNSZPKT) and the network send time (NWSZPKT) of a message. The KNSZPKT must wait for the NWSZPKT, so that under all circumstances, the start of the message has arrived in the TT star coupler at the NWSZPKT, interpreted by the clock in the TT star coupler. The TT star coupler is modified, so that a message arriving from a node computer is delayed in an intelligent port of the TT star coupler until the NWSZPKT can send it precisely at the NWSZPKT into the TT network.