In order to meet the needs of production safety emergency rescue command and emergency management requirements, according to the emergency disposal process of production safety incident, combined with the actual situation of Guangzhou informatization construction of production safety, this paper analyzes and designs the overall architecture and software platform of Guangzhou safety emergency rescue command system, and develops a set of feasible system design solutions with the business systems such asWebGIS emergency command and monitoring management.

This paper takes advantage of the universal power-law distribution of social networks and proposes a leader based local community detection algorithm EALCN. It uses local structural information in the network to optimize a local objective function. A local community can be detected through continuous optimization of the function by expanding from an initial core member computed by a modified PageRank sorting algorithm. The advantage of this algorithm is that it only uses some local information of the network to detect communities by utilizing highly important nodes. The efficiency is higher than traditional algorithm

This paper analyzes the present development and status of technology matching systems in the world. The author makes detailed comparison between the representitive online technology matching systems at home and abroad, in accordance with the needs of technology transfer and matching services, and then predicts the application prospect and developing trendency of the online matching system.

This paper uses three- tier network architecture model including core layer, convergence layer and access layer, designs the tall building LAN system. It consists of user needs analysis, network topology design, IP address division, virtual local area network (VLAN) design, network redundancy design and cabling design. The system meets users’requirements for efficiently transferred voice, data, graphics, images and video through the Intern

Big data has become a very popular topic in the current social, which value is widely accepted in all walks of life. Big data era has arrived, and telecom operators also ushered in the big opportunity of big data. This paper analyzes the value of big data and its existing challenges from the angle of operators, studies on the big data business model combining with the demand of market and industry. It puts forward four kinds of external operation business model starting from the point of "cluster data service", and proposes some constructive suggestions for big data information security problems.

The capacity to cope with sudden power failure is very poor because China's basic condition of coal mine power supply is poor, and the reliability is low. It is necessary for the kilometer deep coal mine to have a set of emergency power supply. Tangkou Coal Company built a set of 3000kW diesel generating sets as emergency power supply. When the blackout occurred, it can provide the power supply for auxiliary shaft hoisting and transportation and other important places. The project is currently in the normal operation at Tangkou Coal Company. It is very important for ensuring the safety in production, guaranting the safety of 1000m deep underground frontline operational staff's life.

Personalized recommendation technology development is conducive to resolve the Internet data information overload problem. Based on the understanding of the characteristics of distributed processing architecture, this paper proposes the tag recommendation system based on Hadoop. The algorithm based on MapReduce model has high scalability and performance, and can analyze offline data efficiently.

In the graduate employment management system, we often send questionnaires to graduates and employers regularly, which needs to send the same e-mail to multiple recipients. It requires the mass-mailing function. Mass-mailing is a common way of network promotion. How to embed this function effectively into the application is the problem that we often encounter in the development and application software. This paper introduces the realization method of web-type mass-mailing function in the system.

With the rapid development of information and network in China, the emergence of big data has become an inevitable event in the development of the times. In the process of industry and enterprise informationization, mastering the processing ability of big data ensures the f information development occupy a leading position. This paper researches on the meaning, present situation and effective application path of industry and enterprises informationization. It concludes that informationization application must strengthen data safety management, construct large data base platform, create good construction environment and implement the data integration and the conclusion, in order to provide reference for present industry and enterprise informationization application

More and more intelligent households enter into people's lives. How to control the smart home in a simple and effective way becomes a difficult problem. This paper designs a wireless voice control system, consisting of the speech recognition module, microcontroller, wireless transmitting module and the wireless receiving module. In the program, sending "hello" into the chip by simply setting the chip registers can identify "hello" by the chip. The experimental results show that the voice module can accurately identify the password and send signals through the wireless transmitting module, and control the electric power on and off in real time. The system can control home appliances more easily instead of the manual contact power switch

At present, mobile tablet devices are popularly used in new media development with three common techniques: technique in the middle of hardware, technique in the development of browser and technique of Rich Media. This paper mainly studies the application of Rich Media in mobile tablet devices, and how Rich Media is utilized in mobile tablet to provide corresponding high-tech and tidal current service.

Appropriate online measuring instruments are provided in air-water backwashing V-filters to ensure a constant water level of the filtering process by adjusting the opening of clean water valves using advanced PLC automatic control system. When airwater backwashing process is performed, appropriate washing methods and intensities are employed to wash away the deposition while maintaining certain amount of biofilms on the surface of the filter medium to ensure later filtration effect

With the rapid development of social economy, internet almost goes into every house. The popularization of computer not only shortens the distance between people, providing convenience for people’s life and work, but also becomes the necessary factors of company development. This article first introduces the computer application technology and enterprise informationization; then analyzes the influence of computer application technology on enterprise informationization; finally provides some suggestions on the enterprise informationization management with computer application technology.

Experiment statistic finds that the more number of data blocks of test vectors are compatible with the reference data blocks, the smaller frequency of occurrence in the test data will be. On the contrary, the greater frequency will appear. According to this law, this paper presents a test data compression algorithm with FDR code. The simulation experiment of ISCAS reference circuit shows that the algorithm is better than another encoding mode in improving the compression ratio

The innovation and breakthrough of the talent cultivation mode is the key in the higher vocational colleges for carrying out the work of the combination of engineering and learning. This paper summarizes the difficulties and bottlenecks in the cooperation between schools and enterprises, and introduces the exploration and practice of the school- enterprise training mode.

With the development of network technology and the popularization of information technology, it is widely accepted that students can study independently and effectively under the network environment. In order to let the students carry out effective learning activities, improve the quality of learning, and develop the habit of independent learning. A questionnaire survey of students’autonomous learning behavior under the network environment in higher vocational college is carried out. Through the analysis of the questionnaire survey, this paper researches on the countermeasures of the students' autonomous learning ability cultivation under the network environment in vocational college, so as to promote the students’lifelong learning habits.

The research on key management technology of sensor network under internet of things environment is a basic work, which has vital significance for research on sensor network security. This paper reviews on the research results by the current domestic and foreign scholars, in order to bring the inspiration for the future related research work. First, it elaborates the research content and challenges of the key management technology of sensor network under internet of things environment; secondly, summarizes the research achievements of the technology at home and abroad, and discusses the existing problems and shortcomings of existing achievements; finally, points out the research focus in the next step.

With the further development of the traditional Internet, the demand for the use of network resources has changed, and the construction of scalable and dilatant service is more and more important. Service requirements change quickly. The cycle from generation to maturity then to be forgotten is shorter. How to provide services on fixed and limited resources are increasingly becoming a research hotspot. In this paper, based on the existing technology, an intelligent redundancy service based on the Hadoop platform is implemented to meet the above needs.

Aiming at the phenomenon that the video display is not smooth in the embedded development platform, this paper presents a scheme of face images collected by USB camera. This scheme is based on the Samsung S5PV210 and embedded Linux operating system, and porting Qt and OpenCV on it. This paper introduces the process of video image acquisition through OpenCV, taking the USB camera as the video image acquisition equipment, and display face image in real time on the LCD screen through Qt. After testing, the image can be smoothly displayed on the LCD screen. It provides a solution for video images display on the embedded platform.

This paper analyzes and simulates some ergodic capacities of several typical systems such as SISO, SIMO, MISO and MIMO, especially studies on the channel capacity for MIMO system. Then, the research on the effects of correlation on the capacity of MIMO systems is emphasized. The results of the analysis and Matlab simulation show that as the wireless space increases and the spread angle becomes smaller, the angle of arrival of the receiving signal will be vertical with the array, the capacity of the channel will roll-off. Also, the effect on capacity is negligible with a correlation coefficient between two antennas blow 0.3, but when the correlation coefficient is as large as 0.7, the capacity will fall significantly.

Course question answering is not only a process of classroom teaching but also an important part of web- based course. How to carry out question answering efficiently in web-based course has been an important problem for web-based course building. This paper introduces the design and implementation of the course question answering system based on Struts2 framework. The system uses the technologies such as HTML, DIV, CSS，Ajax，JavaScript，JSP etc., to realize the user login and register, keyword searching, files uploading, access controlling, dynamic navigation content and other functions. The system uses MySQL database to manage the courses, content and user information. It overcomes the shortcomings of time and place limitations in classroom teaching, making convenience for the online communication between teachers and students.

Depending upon the all-in-one real-time monitor system of 16 bridges on Xiangxi and Yanhainan highways of Xiangshan County, Zhejiang Province, based on fiber grating sensing technology, the identification of running heavy duty vehicles and their weights is achieved without investing the additional weighting systems at the bridgeheads. Employing high-speed data acquired by fiber grating strain sensors, the weights, space-time distribution of heavy duty vehicles can be identified by means of physical analyses, which is useful for monitoring and evaluating the operation status of bridges with heavy duty vehicles running. The statistical records of heavy duty vehicles are also beneficial to devise relevant bridge maintenance and management measurements.

Flash movie is a popular movie format on the platform of internet, mobile terminal communication and TV network. It expresses the rich semantics information through the internal objects and their attributes. Flash movie is the media format delivering effectively vector graphics, texts, images, sounds and videos on the Web. Accordingly, starting from the internal sound features of Flash movie, this paper studies on the sound storage structure and compression algorithm of Flash movie, extracts and labels the sound features.

Computer networking technology is an important professional course of secondary vocational school. Every school carries out the teaching according to their own teaching resources and staff, so that the effect is uneven. This paper analyzes the existing problems in the process of teaching and practice of computer network technology, puts forward the views and reform measures with reality.