GPS positioning data compensation method

Abstract

The invention relates to the intelligent public transport technology field, and especially relates to a GPS positioning data compensation method. The method comprises standard line path generating steps and GPS positioning data compensation steps, wherein the standard line path generating steps can convert the driving track into a curve model and form a standard line path by using a linear interpolation fitting algorithm; and the GPS positioning data compensation steps can realize continuous compensation for discontinuous GPS positioning data generated by an operating vehicle through classification of off-line types and by using the standard line path to simulate driving of a bus. The method provided by the invention is applied to solve the problem about the discontinuous GPS positioning data generated by an on-line operating bus, and enables the intelligent public transport dispatching system to have more reasonable departure rate and punctuality rate, and enables a daily operation form to be more accurate through compensation of the GPS position data. Besides, the method also reduces the workload for additional recording of the daily operation data in the later period for a dispatching staff.

Description

Technical field [0001] The invention relates to the technical field of intelligent public transport, and in particular to a GPS positioning data compensation method. Background technique [0002] With the continuous advancement of urbanization and the continuous expansion of urban population, the role of buses has become increasingly prominent. Especially in first-tier cities, providing high-quality and efficient public transportation services has become a problem that local governments need to solve. Intelligent bus dispatching management system, as a product of the highly developed bus dispatching, uses core technologies such as GPS positioning, wireless network communication and GIS map engine. It has become the first choice for many local governments to relieve urban traffic congestion and improve the level of public transportation services, and it has also achieved remarkable results. effect. [0003] As an important part of the intelligent bus dispatch management system, the...

AI Technical Summary

Problems solved by technology

Although the current GPS positioning system has high accuracy, all-weather, and real-time positioning capabilities, and has also realized GPS and Beidou dual-mode positioning, but due to GPS itself, there are positioning drift and signal blind spots (in high buildings or elevated areas, etc. The GPS receiver cannot capture and track the GPS signal in time, resulting in the failure of the GPS positioning function) and other inherent defects. GPRS itself has performance problems such as weak network signals and signal loss, which lead to the loss or invalidation of GPS positioning data. Therefore, GPS positioning data exists Therefore, it is necessary and practical to study a GPS positioning data compensation method for an intelligent bus dispatching system to realize continuous repair of discontinuous GPS positioning data.

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