| 摘要 |
<p>The present technology relates to protocols relative to utility meters as sociated with an open operational framework. More particularly, the present subject matter relates to protocol subject matter for advanced metering infr astructure, adaptable to various international standards, while economically supporting a 2-way mesh network solution in a wireless environment, such as for operating in a residential electricity meter field. The present subject matter supports meters within an ANSI standard C12.22/C12.19 system while e conomically supporting a 2-way mesh network solution in a wireless environme nt, such as for operating in a residential electricity meter field, all to p ermit cell-based adaptive insertion of C 12.22 meters within an open framewo rk. Cell isolation is provided through quasi-orthogonal sequences in a frequ ency hopping network. Additional features relate to real time clock distribu tion and recovery, uplink routing without requiring a routing table, and the handling of Beacon Requests and Registered State bit resolving to avoid cir cular routes. Features relating to cell or node utilization or management in a mesh network include cell size management, Number-of- sons' management, c rystal drift compensation in a mesh network, broadcast acknowledgement featu res, and Traffic Load Control in a Mesh NetworkOther features relate to Embe dded RF environmental evaluation tool features to gauge the performance need of RF transceivers, Downlink routing mechanisms, Outage notification system features, the use of minimal propagation delay path to optimize a mesh netw ork, and operation at the node level of a Discovery Phase in a frequency hop ping network.</p> |
