Luliang Tang

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—In this paper, a bottom–up vehicle emission model is proposed to estimate real-time CO 2 emissions using intelligent transportation system (ITS) technologies. In the proposed model, traffic data that were collected by ITS are fully utilized to estimate detailed vehicle technology data (e.g., vehicle type) and driving pattern data (e.g., speed,(More)
A new method is described that can be used to decompose human controlled agricultural operations into robotic behaviours embedded in an autonomous tractor. Four main levels have been identified: Operation, Task, Optimisation/Behaviour and Primitive actions where each level is subsumed by the level above. Tasks were further classified into two distinctive(More)
This paper proposes some system requirements for a small autonomous tractor that includes some physical attributes as well as behavioural traits in certain conditions or contexts. The tractor should be physically small, lightweight, reliable, have good real-time communication facilities and be managed easily, especially under fleet management. Five internal(More)
—The efficiency and accuracy of road network data in the latest electronic maps cannot satisfy the current demands of their application's needs. The present paper proposes a new method to use floating car data to detect and update changes in the road network. An experiment was carried out with actual data to test and verify the feasibility of the novel(More)
In this paper, we propose a novel approach for mining lane-level road network information from low-precision vehicle GPS trajectories (MLIT), which includes the number and turn rules of traffic lanes based on naï ve Bayesian classification. First, the proposed method (MLIT) uses an adaptive density optimization method to remove outliers from the raw GPS(More)
This paper deals with the automatic determination of conjugate points in multiple 3-line images of diierent resolution for the task of image orientation. A program for digital image matching was developed as part of the photogrammetric data processing chain in the context of the planned Mars'96 mission. The matching approach contains three phases: First, a(More)
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