The invention relates to a node
complementation wireless networking communication
system applied to an
urban rail transit
power management system, and aims to solve the problems that a traditional
wired communication mode is complex in wiring and poor in expansibility, and a conventional
wireless technology is insufficient in reliability in a complex
electromagnetic environment of
rail transit. According to the
system, a
wireless communication network with self-organizing and self-repairing characteristics is constructed through an innovative distributed
network architecture and an intelligent routing technology, and the system can adapt to communication requirements in a special environment of
rail transit. The system mainly comprises five functional modules: a
network topology management module adopts a distributed self-organizing architecture, realizes automatic discovery and dynamic networking of nodes, and supports role conversion and elastic expansion; the intelligent routing optimization module adopts an improved dynamic
routing algorithm to realize multi-path transmission and self-adaptive modulation, so that the anti-interference capability is remarkably improved; the protocol
adaptation conversion module performs wireless optimization on industrial protocols such as
Modbus, supports multi-protocol conversion, and solves the problem of equipment compatibility; the network self-healing module provides rapid fault detection and switching capability within 50ms, and ensures the service continuity; the safety management module realizes bidirectional
authentication and end-to-end
encryption, and meets the high safety requirement of
rail transit. In a word, the system remarkably improves the communication reliability of the
urban rail transit power
supply management system, reduces the construction and maintenance cost, and provides reliable
technical support for intelligent operation and maintenance.