System Design Principles
The intelligent management system for bus rapid transit signal priority control consists of three parts: first, the core hardware of the bus rapid transit signal priority control system (including: 2.4GHz active electronic tags, directional reader/writer); second, the platform of the bus rapid transit signal priority control system (including intersection control subsystem, signal communication subsystem, intelligent traffic control); third, hardware middleware (including signal controller, industrial switch, cabinet, PC, server, UPS, etc.).
The core technology used in system construction adopts the standard 2.4GHz active microwave frequency band commonly available in the market. All core equipment provided by FineJoin has completely independent intellectual property rights. The 2.4GHz micropower technology enables automatic identification and non-contact information collection and processing of long-distance moving vehicles. It effectively integrates advanced information technology, data communication technology, electronic control technology, and computer processing technology into the ground traffic management system, thereby establishing a large-scale, comprehensive, real-time, accurate, and efficient traffic management system to achieve bus signal priority.
In terms of overall system architecture, selection of service equipment, selection of active electronic tag functions, and basic data collection, full consideration is given to the implementation of subsequent functions, balancing equipment compatibility, system scalability, function extensibility, and application diversity.
System development and resource construction comply with unified technical specifications and representation systems, emphasizing the continuity and sharing of development work, and ensuring that standardized data and control interfaces are reserved for subsequent system development and promotion. Technical indicators such as development application technology, data storage format, signal transmission standard, and interconnection interface mode are unified.
System development and construction must be combined with the actual situation of the traffic area, further strengthening traffic management on the basis of the existing system. Following the construction ideas of overall planning, building while using, and gradual improvement, the construction benefits are fully utilized.
Overall System Schematic Diagram:
Function Introduction:
When a vehicle arrives at the intersection, the RFID reader reads the tag and obtains vehicle information. Through interaction with the intelligent dispatch system, it obtains the real-time dispatch status of the vehicle, including whether it is delayed, whether it is an express dispatch, and the load factor. Based on the real-time status of the vehicle, a request is generated. Then the signal priority system submits a priority application to the traffic management department. The traffic management department system processes the request based on the original plan information and real-time scheduling information, and finally gives a priority result. After the vehicle leaves the positioning area, the signal control system enters the signal state recovery state until the signal state is restored, completing the signal priority scheduling process.
