The management mode, organisation characteristic and operation manner are in detail analyzed in this paper. Urban taxis, based on their performance and operating characteristic, can provide convenient traffic travel s...
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ISBN:
(纸本)7312012035
The management mode, organisation characteristic and operation manner are in detail analyzed in this paper. Urban taxis, based on their performance and operating characteristic, can provide convenient traffic travel service of non-directive route, non-limit place, route and time for single or a few of passengers. Taxis ar navigated and located by means of modern advanced high-tech, such as data communication, navigation and location, computer, artificial intelligence and so on, so that operating supervision for urban taxis and timely route guidance could be effectively implemented. In this way, roads, vehicles, drivers for taxis and supervisors can further contact one another, supervisors could distinctively know taxis running situation and drivers for taxis would know vehicular running situation as plain as daylight. Thereby operation efficiency and safety of vehicular transportation for taxis will be improved, road traffic congestion will be avoided or reduced. It has favorable and applied value.
A dataacquisition system to be intended for working in real time has been developed. The system is an aggregation of measuring, computing and controlling tools located on the main interface bus of a computer. The sys...
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This paper considers the problem of finding a robust solution to the optic flow problem. The optical flow field is recovered by solving a system of over-determined linear equations with all the data matrices containin...
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The efficient allocation problem plays an important role in partitionable multiprocessor system. It is critical to the performance of parallel computers, especially for large-scale parallel computers. In this paper, w...
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ISBN:
(纸本)0780342291
The efficient allocation problem plays an important role in partitionable multiprocessor system. It is critical to the performance of parallel computers, especially for large-scale parallel computers. In this paper, we propose a new enhanced two-dimensional buddy system (E2DBS) strategy which overcomes the drawbacks of previous two-dimensional buddy system (2DBS) strategy, such as four non-buddy submeshes can be allocated, the requesting tasks and the system needs not be square. In E2DBS, we propose an adaptive data structure, called free sub-mesh matrix (FSM), to maintain the free submeshes, which can allocate and deallocate processors easily. Simulation results indicate that our strategy outperforms the previous ones, i.e. 2DBS strategy and best fit strategy, in terms of system processor utilization and average waiting time under various system loads for rectangle requesting tasks with side lengths are powers of 2.
With the fast development of multimedia technology, efficient management of multimedia data has become more and more important. In this paper, a multimedia database is established. It has used hypermedia and object-or...
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ISBN:
(纸本)7505338900
With the fast development of multimedia technology, efficient management of multimedia data has become more and more important. In this paper, a multimedia database is established. It has used hypermedia and object-oriented technology. Besides that, to realize intelligent retrieval such as semantic retrieval, I add a simple expert system into it. It can manage multimedia information such as sounds, images, texts and videos efficiently.
In this paper, we present a formal specification of CSTA, a protocol interface that links the telecommunications and data processing environments to support a variety of distributed telecommunications applications. We...
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In this paper, we present a formal specification of CSTA, a protocol interface that links the telecommunications and data processing environments to support a variety of distributed telecommunications applications. We specify it in SDL, the ITU/TSS (formerly, CCITT) standard description technique for telecommunications protocols and distributed systems. In CSTA, an application is a cooperative process between a telecommunications switching function and a computing function. It is presented to the user as a single function providing enhanced services. The switching function and the computing function are typically distributed among a telecommunications network and a computer network. The interface allows flexible creation of new telecommunications services and applications. It allows computer users and applications to invoke telecommunications services on the switch. The interface protocol has applications in intelligent Networks, Customization of Telecommunications Services, Multimedia Communications, and Universal Personalized Communications.
In Profibus master stations poll data from slave stations using the cyclic service-CSrd (Cyclic Send and Request data with Reply). Because the polling-interval determines the data sampling interval, it is important fo...
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In Profibus master stations poll data from slave stations using the cyclic service-CSrd (Cyclic Send and Request data with Reply). Because the polling-interval determines the data sampling interval, it is important for the Profibus user to be able to know the maximum polling-interval of a cyclic service. In this paper we develop a formula for determining the maximum polling-interval of a cyclic service. Furthermore, if the polling-interval of a cyclic service cannot be met, then we can repeat the corresponding cyclic service in a poll list to reduce the polling-interval. However, how are the repeated cyclic services to be positioned in the poll list? The approach we use is an equi-distance one.
To investigate the underlying principles of reactive (complex) systems such as flexible manufacturing systems (FMS), appropriate specification and modeling tools which can facilitate, besides the traditional quantitat...
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Environmental scientists prefer to construct Spatial Information System (SIS) decision support from the smallest possible data. This is due to the considerable cost of ground-based surveys for data collection. This pa...
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Automated Chinese official document processing techniques and the public-key based cryptographic methodology are used to improve the efficiency of the existing Chinese executive information systems. They provide execu...
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