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WebGIS (Web Geographic Information System)-based traffic light fault supervision system

The invention discloses a WebGIS (Web Geographic Information System)-based traffic light fault supervision system. The system mainly comprises a traffic light information collection terminal, a supervision center, a monitoring user side and a maintenance user side which realize two-way information communication by virtue of a mobile communication network and an Internet. The traffic light information collection terminal periodically collects status information of traffic lights and sends the fault information to the supervision center in a text message manner, and the supervision center analyzes and processes the fault information and provides the real-time fault information of the traffic lights in a WebGIS map manner for the monitoring user side logged by a browser, and can automatically perform maintenance task assignment, optimization and calculation after receiving the new fault information, and automatically send a maintenance task command to the maintenance user side after being confirmed by a monitoring personnel. The system can be used for realizing the real-time monitoring and timely maintenance of the traffic lights and increasing the non-fault working time of the traffic lights, thereby further ensuring the safety and smoothing of road traffic..
Owner:CHINA JILIANG UNIV

Alternating-direct current series-parallel port distribution network and comprehensive dispatching control method thereof

The invention discloses an alternating-direct current series-parallel port distribution network and a comprehensive dispatching control method thereof, and belongs to the field of port distribution power and distribution network automation. The distribution network comprises a general step-down station, a branch substation or a switch-on/switch-off station and various distribution subsystems; a multi-channel feeder of the general step-down station provides alternating current power for the various distribution subsystems through the branch substation or the switch-on/switch-off station; each distribution subsystem comprises a shore electronic system, a shore bridge subsystem, a field bridge subsystem, a power charging and converting station subsystem for electric port trailers, a new energy subsystem and a production life subsystem; each distribution subsystem utilizes an alternating current distribution transformer and an AC/DC converter to construct a direct current bus of the distribution subsystem, and the direct current buses of the distribution subsystems are in direct current interconnection through direct current interconnection protection switches; each distribution subsystem is internally provided with multiple sections of direct current buses, and the multiple sections of direct current buses are in direct current interconnection through direct current interconnection protection switches. According to the alternating-direct current series-parallel port distribution network and the comprehensive dispatching control method thereof, the optimal power supply and comprehensive dispatching control of the port distribution network can be achieved.
Owner:STATE GRID CORP OF CHINA +2
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