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Internet Protocol (IP) telephone, a new way of communication, is growing rapidly in the telecommunication industry. A number of major phone carriers are competing to gain customers in home and business markets. However, there are very few schools at the university level that offer IP Telephone courses. It is rare to find documentation on curriculum and laboratory development, even though some schools...
In this paper, UDP transfer scheme is presented to address data uploading of a measurement system. Based on principal analysis, functional block of UDP transfer module is discussed. Then network interface circuits, UDP protocol stack and usage of limited random accessed memory is detailed. Experiments showed that applied UDP module met requirement of data transfer. Finally, combining with specific...
The condition-based maintenance (CBM) technique has been widely used in the power plant in China. Feed water pump is one of the most important general requirements in the power plant. Its reliability plays an important part in the safety of the complete running. On the basis of practical situation in one power plant, a system for condition-based maintenance of the feed water pump in said power plant...
For the increasing demand on campus network, IPv6 (Internet protocol version 6) is going to replace the IPv4 protocol. IPv6 is playing an important role in many fields. Wireless sensor networks (WSNs) are undergoing rapid progress and attracted the attention of both the academic and the industrial research community in the last few years. This paper reports on the development of these protocols at...
According to the characteristics of GSM-R(Global System for Mobile Communications Railway), the Vehicular GSM-R Field Strength Testing System is required that the functions of receiving the data of GPS and displaying related geographic information that has processed and GSM-R field strength testing data situation on the electronic map. For these purposes, the implement program that geographic information...
In Service Oriented Architecture, Quality of Service (Qos) represents an important issue which is often considered when selecting and composing services. For receiving up-to-date information, non-functional properties can be continuously monitored using current methods. Because of the occurrence of monitoring at every time of service calling, the current methods imposes some overhead on the SOA. The...
In order to reflect the actual deformation degree and trend of building structure and foundation pit, it was necessary to carry out the deformation measurement of subway construction and information management of construction monitoring. At the present moment, GIS had been applied in many fields but rare in analysis of deformation monitoring data. In this paper, GIS, with powerful capabilities of...
VoIP implementations are nowadays the preferred information technology alternative to public switched telephone networks. With dependence on this technology, VoIP quality and performance are critical. In this paper, we implement some commonly used VoIP CODECs on Windows desktop operating systems to evaluate their performance on two versions on IP, namely IPv4 and IPv6. Performance related metrics...
Sensor node localization is a basic and key problem in sensor network work and management, and the self-localization of the sensor node is the basis for sensor network applications. This paper classifies and compares with several localization algorithms currently used, presents a node localization algorithm based on mobile anchor node, to reduce the communications and computing cost of the wireless...
This paper proposes a framework for consolidating laboratory data by adopting an Enterprise Service Bus as a backbone for interchanging laboratory data between: medical instruments, the Laboratory Information Management System and the Hospital Information System. A laboratory test result is one of the major components in medical diagnosis and procedures. It can be used to plan a patient's treatment...
Currently, in the MAC protocol of wireless sensor network, the sender mote sends data with or without receiving acknowledgements (ACK). Although in some applications, people enable the ACK function, they just use the fixed repeat times. In such scenarios, the sender mote does not care about the quality of the channel when they have to send the data. However, in the real world, the channel may not...
Along with the infiltration of wireless sensor network in every field of our life, sharing sensor network resources in Internet environment is one of key problems which must be solved by wireless sensor network application. This paper expounds Web Service technology and uses Web Service technical framework for reference to design a new kind of service-oriented sensor network structure. And finally,...
With the pervasion of Internet and the sharp increase of the number of netizens, Network public opinion has been serving as an effective method in the monitoring and reflection of social public opinion. However, Regulatory Authorities are inclined to concern more about public opinion in a special field while it is too difficult to acquisite the expected information that relates to a special area from...
Video is an important medium for the observation of a variety of phenomena in the physical world such as for water conservancy engineering. Video sensor networks (VSN) consists of a large number of sensor nodes with cheap CMOS cameras, therefore, it has the ability of large scale visual monitoring. However, a kind of powerful and scalable platform is urgent for simulation and development of VSN. This...
This paper aims to develop the system of powerful computer laboratory class by simulation the ideal learning procedure, teachers and their students can keep in touch with each other in 2-way and immediately communication on Internet. This system can enhance the learning of computer laboratory class powerfully in 3 aspects: controlling, teaching, and evaluating on computer network technology with client/server...
In this paper, we identify and analyze a set of characteristics that increasingly distinguish today's complex software systems from “traditional” ones. Several examples in different areas show that these characteristics are not limited to a few application domains but are widespread. Then, we discuss how these characteristics are likely to impact dramatically the very way software systems are modeled...
Rapid growth in sharing information using internet technologies laid the threats of copyright protection for digital multimedia contents. One of the remedy for intellectual property protection is Watermarking. This paper deals with numerous available digital video watermarking techniques and raised the issue of quality and size of watermarked video. Through experimental study, it has been shown that...
In view of the development status of cement industry information, combined with the specific technology process of cement production and based on the characteristics of the whole process of cement enterprises production, this paper developed a set of integrated information system containing cement production process, sales management, quality control and financial management. The system can realize...
Cloud computing, as an emerging computing model, is drawing much attention from academia and industry. Storage resource, computing resource and network resource are three basic resources in a cloud computing infrastructure. How to utilize these resources efficiently and conveniently is a big challenge for building a good cloud computing infrastructure. This paper presents a service-oriented storage...
Progress in wireless communication has made possible the development of low cost wireless sensor networks. In recent years, as the development of wireless sensor networks, people have done some research on cluster-based protocol, about the proongation of the lifetime of WSN and decrease of energy consumed by the sensors. Clustering sensor nodes is an effective topology control approach, but these...
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