A distributed redundant control method and system for intelligent transportation

Abstract

The present invention provides a distributed redundant control method and system for intelligent transportation, in which communication control nodes form a redundant network; the communication control nodes select a master device according to the priority of the communication control nodes, and back up their own data in the master device ; The master device sends a fault detection message to the communication control node. When the response message to the status detection message is that the communication control node cannot control the action of the device under its jurisdiction, the master device will replace the communication control node to control the device under its jurisdiction. Action, the master device adjusts the control time of the signal lights at each intersection according to the traffic flow of each intersection in the redundant network; when the response message to the state detection message is the master device election message, send the response message to the master device election message The communication control node re-controls the action of the equipment under its jurisdiction, and continues to back up its own data in the main equipment, and the adjacent communication control node transmits the backup data uplink, realizing the distributed redundant control of intelligent transportation.

Description

technical field [0001] The invention relates to the technical field of intelligent transportation, in particular to a distributed redundant control method and system for intelligent transportation. Background technique [0002] In the intelligent transportation network, post-digital network data such as GPS positioning, bus dispatching, and monitoring play an increasingly important role in real life. Now many cities have established 3G monitoring, GPS traffic dispatching, ITS and other systems. How to realize Network management is an important issue to be solved in the next step. [0003] Take signal indicator light control as an example, such as figure 1 Shown is the structure diagram of the existing intelligent transportation network. The existing intelligent transportation network basically includes the station-level (city-level) control center, the intersection switch and the signal indicator control device. When the intersection video camera monitors the traffic flow i...

AI Technical Summary

Problems solved by technology

[0003] Take signal indicator light control as an example, such as figure 1 Shown is the structure diagram of the existing intelligent transportation network. The existing intelligent transportation network basically includes the station-level (city-level) control center, the intersection switch and the signal indicator control device. When the intersection video camera monitors the traffic flow in a certain direction When it increases, the traffic police are usually notified to manually adjust the signal indicator light on the spot to guide the traffic manually; now, it is also possible to manually adjust the signal indicator light remotely through the station-level control center, which greatly improves the real-time rate of traffic control. Great improvement, but due to the increasing demand for transmission between the station-level control center and the intersection switch, in the event of a failure of the signal indicator control device, the signal control communication between the station-level control center and the on-site signal indicator control device is abnormal. There is no guarantee that the situation will not occur. This realistic problem is the problem of redundant management of intelligent transportation.

[0004] In addition, when the communication between the station-level (city-level) control center and the intersection switch is not smooth, the data transmission cannot be completed in a timely and effective manner. How to immediately and effectively transmit the backup data to the station-level (city-level) control center must also solve the redundancy management question

[0005] In addition, the existing means of adjusting the time of signal indicators is mainly through manual control. For the convenience of control, the relevant control equipment is generally placed at the corner of the intersection, and passers-by can also open the relevant control equipment for operation, which greatly brings safety hazards. , of course, this is not something that can be solved simply by locking the relevant control equipment

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