Eleventh International Conference on Road Transport Information and Control, 2002. (Conf. Publ. No. 486)
0537-9989
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Các bài báo tiêu biểu
Forecasting real-time ratings for electricity distribution networks using weather forecast data
- Trang 1-4
Currently the operators of electrical distribution networks face a number of challenges, such as load growth, the proliferation of distributed generation and ageing infrastructure. This is drawing attention to techniques which will allow more efficient asset utilisation and facilitate network dynamic management. Power system component real-time ratings are a cost effective solution for increasing ...... hiện toàn bộ
Information architectures for next generation car park services
- Trang 74-77 - 2002
The car parking business must focus on customer service. This will progressively be about providing better information about spaces available and services to find the car park; for example, signs that light up to indicate the number of spaces available in a car park some way away. The common database architecture supports developing customer service and more cost effective monitoring for multivend...... hiện toàn bộ
Creating a successful payment architecture [mobile data services]
- Trang 376-381 - 2002
The introduction of GPRS and UMTS data services for mobile operators greatly increases the complexity of payment solutions since services can no longer be charged on simple duration basis but have to be tailored to the value of service being offered. At the same time, payment schemes need to be affordable and easy to understand for commercial success. The paper describes Nortel Networks' view of t...... hiện toàn bộ
State estimation enhancement using an optimal power flow
- Trang 198-203 - 2002
In this paper, we have shown how an OPF tool can enhance an estimated state of a power system network, especially in the unobservable areas. The solution of this problem considers two major aspects: optimizing on the one hand the unobservable areas while respecting the observable areas and on the other hand mathematical methods to solve the nonlinear optimization problem. The addition of active li...... hiện toàn bộ
A review of control methods for brushless doubly-fed reluctance machines
- Trang 528-533 - 2002
This paper considers various aspects of field oriented control, direct torque control and scalar control of an ideal brushless doubly-fed reluctance machine (no saturation and with sinusoidally distributed windings). Modeling fundamentals are introduced first and mathematical expressions of interest to the primary flux oriented control for the machine are subsequently derived from the model equati...... hiện toàn bộ
The effect of electrical and mechanical antenna down-tilting in UMTS networks
- Trang 86-90 - 2002
In an interference-limited CDMA system, network planning and the optimal installation of infrastructure components are important issues. This is not only to increase system capacity but also to allow for a smooth network operation. Whereas the Node B locations can hardly be changed, modern antennas provide adaptation mechanisms with which the antenna down-tilt angle can be adapted to the various n...... hiện toàn bộ
Transport and processing of perishable information: essential infrastructure for location based services
- Trang 345-349 - 2002
Location based services (LBS) have the potential to make a profound impact on our lives. Many industry sources anticipate that the market for LBS will take off during 2002, with the roll out of GPRS being the driver, rather than that of 3G. The existing LBS infrastructure manufacturers include those who have developed the so-called "911" emergency location services, which have been implemented in ...... hiện toàn bộ
An architecture for a distributed 3G mobile terminal
- Trang 459-463 - 2002
The paper develops an abstract architectural view of a distributed mobile terminal for use in third generation mobile systems, including UMTS and the Mobile Internet. The actual physical form of a third generation terminal is still debatable; however, it is possible to derive an architectural prescription for the logical form such a terminal should take. The paper starts by reviewing the current s...... hiện toàn bộ
Advanced operational views on the power system and its components
- Trang 186-191 - 2002
A comprehensive visualisation concept for power system operation was developed which provides innovative task related views of the system and its main devices. Full integration into the used operational surface functionality provides significant improvement by various additional perspectives-especially for alert or restorative system conditions-and at the same time reflects ergonomic demands. Regu...... hiện toàn bộ
Nonparametric trend model for short term electricity demand forecasting
- Trang 347-352 - 2002
In this paper, we present a novel nonparametric algorithm for short term electricity demand forecasting. The algorithm is based on local linear regression using sliding window with variable length. The method for selecting optimal window length for each local fit offers close insight into trade-off between bias and standard deviation of local regressions. Optimal window length is selected for each...... hiện toàn bộ