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This paper proposes a novel approach for visual query compression with a bank of transforms selected on Grassmann manifold. Instead of using single transform and quantization pipeline for all the features extracted from an image, we group the key point features according to their local embedding subspace geometry and organize them into different leaf nodes of a KD-Tree which was built from a large...
Mobile radio frequency identification (RFID) systems are being employed in many applications such as supply chain management. Since the communications between RFID-reader and server, RFID-tag and RFID-reader are all wireless, security and privacy attracts more attentions, reflected in the research on authentication protocols. But most of the existing authentications only care about the front end (reader...
This research paper presents the design of a proposed synchronization wireless algorithm based on message digest (SWAMD) as an aid to assist data synchronization between the mobile device database and the server-side database. SWAMD proposes storing images from the server-side database and the mobile device database in a message digest table in order to easily compare two images and pinpoint the rows...
The exponential increase in the smart phones has considerably increased the access to data services in mobile environments. As the mobile devices are prone to frequent disconnections, mobility issues, battery consumption etc, successful execution of the data services may not always be guaranteed. Replicating the data at several places provides the fault tolerance for the smart database applications...
This paper introduces the design plan of a distributed control and management system for power devices, and puts emphasis on the hardware composition and working principle of the system. The system is divided into two parts: field devices and monitoring center. The former uses ARM to collect data and control MC35, a module of GPRS; the later uses Browser/Server to realize centralized management of...
This paper focuses on the design and development of Municipal Facilities Management System (MFMS). Street images and videos were collected by Wuhan LD2000-R Mobile Mapping System, and real-time videos on site under emergency conditions were captured by Wireless Transmission System. In MFMS, any street can be queried and located, visual information of facilities on the streets can be viewed, as well...
To securely access data center supporting the constraint of temporal and location-based services, access-control system requires more flexible definitions applying to Wireless Heterogeneous Networks (WHNs). To cope with the WHNs environment, we propose an Associated Temporal and Spatial Role-based Access Control (ATSRBAC) model. In this model, both temporal-period and spatial-location based entities...
With the increasing vehicle use on the road, the collection, processing and transmission of data flow within and outside these vehicles are increasingly complex. These data is often important and sometime critical for drivers and passengers, particularly for remote monitoring and control applications. There are various forms of vehicle data and hence various types of networking used in different vehicle...
The objective of the work is to propose a context based formal language model of fault tolerant public transport system in pervasive environment. The system is modeled on the basis of context sensitiveness built inside the system to assist the decision making not only to identify the failed components but also to determine the alternate solutions to tolerate the faults when need arises. The fault...
The paper describes a problem of prebuffering on wireless connected mobile devices through a mobile database (Mobile SQL Server CE) as a solution for low throughput on wireless connection of mobile devices. As a second important area the optimal data artifact determination is described with a compare of two selected artifact size. The prebuffering control is based on wireless localization and positioning...
The work describe the implementation of the prototype solution of the rightly developing system. The system belongs to the group of the tele-medical applications orientated on the e-health sphere of the supplying of the services. This system can considerably help to streamline the work of the nurses. The system is proposed and implemented so that it was simple to extend it. The system contains three...
This paper describes development of a biotelemetric system and problem of real time processing of ECG signal. In this case of signal processing ECG CorBelt primarily on mobile embedded monitoring stations. The Whole system is based on Microsoft product as Windows Mobile, Microsoft SQL Server, .NET Micro Framework, .NET Compact Framework and .NET Framework. On paper is deal with ECG measurement devices...
Certificate status verification is one of the most important parts in WPKI. Aimed at dealing with the problems of certificate status verification in the wireless environment, the paper puts forward a new method - OCSP of cache-based server agent OCSP request, which takes full use of the advantages of the current OCSP certificate status verification scheme, and can get the real-time status of the certificate...
This paper proposes a new approach for reducing average call delivery cost and location server's load of wireless mobile networks. It uses caches whose up-todate information is responsible for dropping these costs and these caches are updated not only during call arrival moment from the calling mobile hosts (MHs) but also during call receiving moment to those MHs. To achieve load balancing among replicated...
With the increasing use of vehicles in cargo transport, the collection, processing and transmission of data flow within and outside these vehicles are increasingly complex and important for drivers and goods owners, particularly for remote monitoring and control. There are various forms of vehicle data and hence various types of networking used in different vehicle applications. Based on vehicle information...
The paper deals with a problem of inefficient WiFi adapter of wireless mobile devices and a possibility to solve this problem by a prebuffering of selected artifacts. The basics are in a model of data prebuffering based system enhancement for locating and tracking users inside the buildings. The developed framework joins the concepts of location and user tracking as an extension for a new information...
Main area of interest is in a model of a radio-frequency based system for locating and tracking users of control or information system inside the corporate area. The developed framework joins the concepts of location and user tracking as an extension for a new type of mobile embedded systems. The PDPT (predictive data push technology) framework uses a WiFi network infrastructure to let a mobile device...
The high-tech intelligent transport system is one of the most efficient ways to improve the world transport problems. The paper raised project to transport information system, which is a key problem in ITS. It lucubrated subsystem for information release and raised economic project to wireless data transport. The project saved much cost by modulating baseband signal twice and made the best of network...
In this paper, an in-door wireless localization algorithm named i-KWNN based on the KWNN algorithm is presented to solve the side effect of anonymous access points (AAP). Kalman filtering is adopted to enhance the tracking performance by smoothing signal strength. Therefore, the typical signal strength value of an access point can be inferred. The experiments show that this method can indirectly decrease...
Location based services is considered as a killer application in the wireless data market that provide information based on locations specified in the queries. We consider wireless data broadcasting as a way of disseminating information to a massive number of users. To address the issues of responsiveness, energy consumption and bandwidth contention in wireless communications, an index has to minimize...
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