An intelligent bus system based on communication and grid computing technology

Abstract

The invention relates to an intelligent public transportation system based on communication and grid computing technology. It is characterized in that it uses the Internet and VPN technology to connect the dispatching room terminals of each bus line and thousands of computers sharing computing resources in the dispatching system form a "virtual supercomputer" sharing computing resources and information resources; each bus The computer in the team dispatching room calculates the "average speed between stops" of the bus on this line based on the real-time positioning information sent back by the buses in real time during the operation of each line, confirms the specific location of the bus, and will need to share the overall "Road average vehicle speed" is uploaded to the summary platform, and each team can read the dynamic road condition information such as congestion stations, congestion intersections, congestion bottleneck nodes and other relevant road sections related to the driving status of this line. It is a low-cost, high-precision, and reliable operation. , high efficiency and good stability, and easy to popularize intelligent public transportation system.

Description

technical field [0001] The invention relates to the technical field of public transportation management, in particular to an intelligent public transportation system based on communication and grid computing technology. Background technique [0002] At present, the "GPS smart bus" technology has been put into application in the field of smart bus application technology. Under the condition of increasingly congested traffic in big cities, it can quickly change the backward dispatching means of traditional dispatching management of "stuck at two ends and out of control in the middle", and realize Real-time monitoring of the driving process in the middle of the bus line. Of course, in practice, it is also found that the GPS technical means has some unsuitable places such as signal blind spots and communication delays in the central urban area. For the public transportation system with short-distance fixed-point stops, the advantages of GPS have not been effectively utilized. B...

AI Technical Summary

Problems solved by technology

Because "GPS smart bus" relies on satellite positioning, the investment cost is high, and the economic strength of different bus companies is different, even the bus companies in the same city are difficult to achieve a new level of smart bus management as a whole, some must be overall optimized to be effective Smart bus application projects are also difficult to be effective

Moreover, GPS will have signal blind spots under high-rise buildings, viaducts, and tunnels. It takes a certain initialization time to re-search for more than four satellite signals, so there are communication delays and information collection blind spots. Low, not suitable for the application requirements of smart public transport fine projects. In addition, there are still problems in the accuracy selection of "communication interval" (value 6 seconds) and "speed collection cycle" (value 15 minutes / time) in use. Theoretically, the sensitivity and accuracy range of information collection can be improved by shortening the "communication interval" and "speed collection cycle", but in actual application, the workload of the computer and the amount of information and data transmission will often be doubled, resulting in communication problems. The transmission channel is blocked and cannot meet the information collection requirements of many high-precision smart bus projects

To sum up, the application of "GPS smart public transport" has relatively large limitations, and it is not ideal from the perspective of economy and practicality.

Images