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    • 7. 发明授权
    • Communications protocol for digital telemetry system
    • 数字遥测系统通信协议
    • US5331318A
    • 1994-07-19
    • US23108
    • 1993-02-26
    • Michael A. Montgomery
    • Michael A. Montgomery
    • E21B47/12G01V1/22G01V11/00H04L29/06G01V1/00
    • H04L29/06E21B47/12G01V1/22G01V11/002
    • The present invention relates to a communications protocol for a digital telemetry system which enables more efficient digital data transmission between a plurality of digital communications nodes. The protocol is implemented using uplink and downlink packets and superpackets. Each node forms an uplink packet which contains node data and protocols. Those packets are packaged into uplink superpackets and transmitted to a control node. Downlink superpackets containing information signifying which of the uplink superpackets were received correctly are formed and transmitted to the individual nodes. In response, any uplink superpacket received incorrectly is retransmitted. Additionally, the communications protocol also time stamps messages received from the nodes to provide for digital communications time correlation.
    • 本发明涉及用于数字遥测系统的通信协议,其能够在多个数字通信节点之间实现更有效的数字数据传输。 该协议使用上行链路和下行链路数据包和超级分组实现。 每个节点形成包含节点数据和协议的上行链路分组。 这些数据包被封装成上行链路超级数据包并传输到控制节点。 形成包含表示正确接收哪个上行链路超级分组的信息的下行链路超级分组,并将其发送到各个节点。 作为响应,重发了接收不正确的任何上行链路超级分组。 此外,通信协议还对从节点接收的消息进行时间标记以提供数字通信时间相关性。