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The major method of water quality monitoring was sampling in the scene at present in China. In response to the problems such as weak sampling capability of water quality, untimely data processing and so on, based on GPRS technology, the design scheme of an automatic water quality monitoring system is proposed. The system utilizes the water quality monitor to process the sample and send the relevant...
The image fusion technology is getting more and more widely used in the material evidence photography. Firstly, we comprehensively analyzed and summarised the principle of image fusion technology, combined with operations of software integration, providing a scientific basis for its applications in feature extraction and image enhancement. It also effectively solved the information comprehensiveness...
In this paper, the problems faced by traditional model of petroleum engineering experiment teaching were analyzed, the applicability of multimedia software in experiment teaching was discussed, and the construction and application of petroleum engineering multimedia software were introduced.
This paper proposes the method of 3D modeling and simulation of five-degree of freedom (5-DOF) parallel mechanism. 3D design by UG and module of mechanism testing platform are presented based on mechanism configuration. The 3D model of 5-DOF branched-chain is established and the parallel mechanism is assembled strictly by UG. Finding all translational parts one by one, the adjacent parts during motion...
To improve the network active defense ability with intelligence defense, prevention, and authentication methods in campus network. the concept of intelligent active defense system is proposed based on web access control and 802.1X admission control, the two technologies have their own disadvantages whatever web technology or 802.1X access control, but if we develop their own advantages of web and...
With the gradual maturity of image processing and embedded development technology, the conventional video detection system is improved towards the intelligence and the miniaturization. Embedded development board and embedded Linux OS offer enough support for this trend. This paper firstly introduces the construction of the hardware and software's platform, and then describes the system framework made...
This research elaborates the innovative ideas and the design thinking of music teletutor. It explores how to achieve the playing of MIDI files through VS1053 decorder, how to achieve such important functions as the real-time display of musical notes,track solos and settings of tempos by analysing and integrating the MIDI files through the users' programing softwares. The purpose of this design is...
Modern communication system is restricted by the underwater communication. the underwater acoustic channel is probably one of the most complex environments for data communication, the main reasons of bit-error-rate in underwater acoustic communication are serious multipath fading and Dopppler shift, the direction of underwater acoustic communication's development is the data transmission with low...
Two phases of remote sensing image data of Dandong city taken respectively in 1989 and 2001 were interpreted through ERDAS software and the change of landscape pattern was analyzed with three categories of indices from the landscape pattern and landscape levels by means of using FRAGSTATS software. The results showed that the construction land was dominant and expanding tendency was obvious with glebe,...
With the development of remote sensing techniques, RS had become an effective way to do the disaster monitoring and assessment. Nowadays, remote sensing plays an important role in disaster mitigation. But the methods to produce the main product of remote sensing data - image maps, are very complicated, and varies work flows, lot of image processing and operations are included. The requirement for...
Summary the experience and shortcomings which gained in the previous production practice, combine with its own characteristics of specialty with subject characteristics of the New period, Put forward make full use of Production, Learning and Researching base, implementation a variety of models such as "employment-led, decentralized and centralized integration", Production Practice and Graduation...
Based on a portable device, highly integrating Remote sensing, GIS and GPS technology, using Embedded development, the mobile GIS system specially for forest resources inventory hardware was developed. The paper deeply discusses the composition of the system, key technical problem which it has solved, and current status of the practical application of the system all over the nationwide. The research...
Lightning location information is the message on lightning received from lightning monitoring net. It contains lightning time, latitude, longitude, intensity, as well as steepness, positioning errors and other critical information. There're some differences in the information caused by the diversity of lightning positioning system models. This paper introduces a kind of methods on extracting the lightning...
This paper introduces the multiple queue multiple serve system's characteristics and the basic application of the WITNESS 2008, and then takes a university canteen as an example to detail the simulation process of a multiple queue multiple serve system. Through analyzing the results of the model to identify the bottlenecks on system and the causes of the problems, then put forward some measures to...
Programming based on component is an important way for decreasing complexity and program development time in high performance computing. In this paper we introduce CCA ,which is a component architecture towards HPC. Programming in CCA environment, design and implementation of CCA are also discussed. According to design and implement linear system slover, people can realize advantages of HPC software...
This paper is based on the software product for DengFeng city cement plant and DengFeng ZhongLian cement Limited company. This software system consists of server-side software, client-side software and handheld programmer software. Key technologies used in system contain non-contact IC card and car license recognition etc. The paper elaborated system requirements. Software functions and software implement...
Vector data compression system carries important significance in studies such as geography environment simulation, map database establishment and GIS. But there are lots of redundant points in the digital topographic map. In order to reduce storage space and improve the speed, vector data must be compressed. The compression algorithms of the line element are researched in the paper. The line element...
Nowadays natural disasters especial earthquakes frequently occur all over the world. Thus rapid mapping of remote sensing system has practical significance. In this paper, based on the methods of disastrous expression of multi-scale geographic maps and remote sensing images, processes of fast mapping were proposed and researched. It includes quick match of base map database and disastrous thematic...
Global Position System (GPS) has a function of accurate three-dimension navigation and orientation, which has the character of detection in all time. With the rapid development and extensive application of GPS technology, deriving the precipitabel water vapor (PWV) of atmosphere from the observe data of GPS has already become a new detectable technology. In order to getting high precise calculated...
This study aims at revealing how land use and land cover change in the typical watershed (Luoyugou Watershed) of Loess Plateau over past 20 years. Based on the remote sensing imagery data and topographic map, a four-stage (1986, 1995, 2001 and 2008) spatial data base was established with ArcGIS software. Demographic data, agricultural economic data and other auxiliary data were collected from national...
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