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Over the past decades, increasing traffic volume poses many challenges, dynamic traffic light management is one of them. Unlike foreign countries, road traffic conditions of India are heterogeneous due to which detection, counting and classification of vehicles in real-time has become difficult. Due to fixed and predefined nature of traffic light switching traffic congestion is often. In nutshell,...
In this paper, we present a system using an Android smartphone that collects, displays sensor data on the screen and streams to the central server simultaneously. Bluetooth and wireless Internet connections are used for data transmissions among the devices. Also, using Near Field Communication (NFC) technology, we have constructed a more efficient and convenient mechanism to achieve an automatic Bluetooth...
As for the graphical modeling software of current domestic power system, it used mostly to be the stand-alone edition or based on C/S (client-server) mode. Compared with the B/S (browser/server) mode, there are some shortcomings in software installation, upgrade and maintenance. This paper aims at developing the graphical modeling software of power system, which is based on the B/S mode, making most...
Owing to its potential to satisfy all outstanding requests for the same data item with a single response, on-demand data broadcast becomes a widely accepted approach to dynamic and scalable wireless information dissemination. In some emerging applications, such as road traffic navigation system, users prefer to request multiple dependent data items at a time. In addition, requests usually have deadline...
Scheduling theory and algorithms have been well studied in the real-time systems literature. Many useful approaches and solutions have appeared in different problem domains. While their theoretical effectiveness has been extensively discussed, the community is now facing implementation challenges that show the impact of the algorithms in practice. In this paper, we propose a scheduler framework, called...
Recently, RTM (Robot Technology Middleware) is attracting attention as a component oriented platform for robot development. However, RTM is unable to ensure real-time processing in CORBA because CORBA manages packets in a FIFO manager. In this paper, we propose a communication method from RTM to TECS in an effort to enhance realtime processing. TECS is a component system for embedded systems and suitable...
In order to improve the utilization of the map data unit and the network bandwidth when displaying on the terminal system, an improved strategy is putted forward based on the existing map data pre-fetch strategy. This strategy considers the road network information and the current direction angle when the system pre-fetches map data. Tests show that the improved strategy can not only meet the real-time...
In this paper, we proposed network services connection management methods and mechanisms to address the network connection port is unavailable (connect failure) and network services can not share Internet connection resource. In order to achieve the above objectives, the network packet header is removed and the establishment of the corresponding service connection channel. Using the channel of the...
In this paper a practical real-time video trans-mission system is proposed by combining SVC (Scalable Video Coding) and MDC (Multiple Description Coding). Each description of MDC can be designed as scalable bit stream which is helpful for UDP/RTP based transmission over practical packet loss network, such as Internet. To provide different spatial resolution / fidelity videos and flexible transmission...
This paper describes the implementation of an iLab Server using TAG4M devices. The iLab project (started by MIT) consists of a collection of online laboratories that allow carrying out remote engineering tasks. Our idea was to create such a server based on the TAG4M device - a Wi-Fi measurement device. This iLab implementation will be deployed on the existing iLab infrastructure hosted at the CVTC...
Nowadays, real-time applications expect the supporting computing system to be reconfigured at run-time. Even during such reconfiguration, timing requirements of the applications must be met. By extension, such requirements are relevant in the design of resource reservations techniques. In this work, we consider such a reconfiguration of the reservation provided by a constant bandwidth server (CBS)...
The recent research and development in the domain of Wireless Sensor Networks (WSNs) have opened up tremendous opportunities and applications in many different scenarios. If we take into account the aftermaths of disaster, we certainly need to build up a mechanism to gather the data for the disaster hit area in which there is minimum delay and protocol we use should be energy efficient. This can be...
Electronic learning has produced a comfortable, sophisticated, interactive and adaptable teaching model. Moreover, the consistent technical progress in this field allows the development of increasingly interesting applications [1]. We chose to select those elements to create an e-learning environment. This paper presents a model of the multi-tiered e-learning system based on Web Services. It shows...
With the rapid development of the Internet, SaaS applications delivered as services through internet become an important alternative of traditional software. While using the services, users need real time usage information, and they also need to dig out useful knowledge. As a result, data processing and data mining techniques are designed to cope with such problems, and using log data is an effective...
This article describes system architecture designed for visualization platform of the production process in generic manufacturing. It fits for almost all kinds of production process of manufacturing. The system is divided into four modules and each has its special features. First of all, the whole architecture of the system is shown to help you catch the main points. Then we describe our design in...
Current computer networks are challenged by the overwhelming multiplication of available content and the increasing requirements of the content delivery applications. Content caching is already playing its role in content delivery solutions. In this paper we identify the parameters and conditions that affect the performance of content caching solutions and the quality of the related multimedia services...
This paper presents the design and implementation of Distributed Threads using Real-Time Specification for Java (RTSJ). As it is an aperiodic task in our system model, it is used Asynchronous Event Handler (AEH) to catch this event and forward to aperiodic server. It is explained how a distributed thread arrives at a node and how it is attended by a local thread. Through this implementation it is...
Companies with established and reliable control systems are often confronted with the question of how to benefit from upcoming innovations in science and practice without removing or extensively changing their systems. One of the currently often discussed innovations is the new standard OPC Unified Architecture (OPC UA). OPC UA provides an improved data transport and a semantically rich information...
The paper adopts the DM365 video processing chip to realize an embedded network video surveillance system, and selects highly efficient video coding standard — H.264 compression algorithm to enhance the efficiency of coding data. The video monitoring system software includes video monitoring server module and client-side monitoring module. The video surveillance server module running on DM365 platform...
ECG signals received from a long distance call through mobile phone network need to be displayed instantaneously, smoothly and recorded. Due to non-uniform load and inherent time delay in the network the real-time display is incoherent. This will cause some discomfort or inaccuracies in observing the waveform at the critical moment, and then more or less affect the quality of work performed by the...
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