Electronics and information industry is one of the eight pillar industries in Tianjin and is mainly located in Tianjin Economic and Technological Development Area and Binhai High-tech Industrial Development Zones of Binhai New Area．The manufacturing Industry in mobile communication counts for much in the whole electronics and information industry．There are achievements in Electronics and information industry in Tianjin，nevertheless，unbalanced distribution of the industrial structure， being strongly influenced by foreign investments and low technological innovativeness are still problems．During the 12th Five-Year S&T Development Plan，Tianjin will focus on the optimization of industry and start a new undertaking．

In the ubiquitous wireless heterogeneous networks, vertical handover (VHO) is the essential problem that makes user access seamlessly. An application-oriented VHO decision method based on mSCTP is proposed. The proposed method considers multi-factors and combines Improved Analytic Hierarchy Process (IAHP) and Grey Relational Analysis (GRA) to choose the most appropriate destination network. Simulation results show that the proposed method can take full account of the different QoS requirements of various applications, and will not cause performance degradation.

This paper introduces the implementation principle and method of broadband data business operation and decision support system．The system unifies many kinds of data services such as narrowband dial-up business，broadband dial-up business，exclusive line user and value-added service to a system platform．It offers business analysis and decision management ability to operators．

Taking the chemical customer technical services of a large-scale petrochemical group enterprise as the background， the paper constructs a work mode of production-sales-research cooperation focused on customer information management， quality complaint management， product data management and new product demand management． On this base， the chemical customer technical services system is designed and developed based on Model-View-Controller-Service(MVCS) design patterns and middleware data integration methods．

With the rapid development of Wireless Local Area Network，the affection of wireless network increases． It’s no doubt that the wireless network has tremendous pressure，the optimization of wireless network occurs．This paper analyzes a series of experimental data，and then puts up with some methods for the network optimization．

FTTH is the broadband access method that takes optic fiber as transmission medium． Optic fiber communication has the features of frequency bandwidth， large capacity， low cost per unit bandwidth， carrying high-quality video and environmental protection． Its use can be better adapted to the integration of business development in access links． This paper analyzes the advantages of network construction based on FTTH and introduces the ODN design methods based on the two scenarios which are new and improved．

IBM WebSphere Application Server Network Deployment is the foundational software based on J2EE，and is the platform for Java EE and Web-Service applications．It provides business application systems with load balance，scalability and high availability by its cluster feature．The typical cluster architecture has one Deployment Manager，two application server nodes and two http server nodes．Flexible configurations of http servers and application servers may improve efficiency of hardware resources and enhance high availability of business application systems．

The main idea of this thesis is to provide a new way for allocating mini-slot according to different kinds of traffic based on the distributed coordinated MAC mechanism． The basic idea is to set different search range when a node searches for free minislot according to traffic’s different priority， which is specified as the different length of demand_persistence．we hope the traffic with high priority can get high quality of service through our method， and the whole network performance will not be effected a lot．

For the disadvantages in traditional earthquake emergency rescue system， such as non-real-time data acquisition， real-time monitoring not easily to put into effect in disaster area ， the poor dispatching performance with relief supplies and so on， the Internet of things is used to construct a combination of hardware and software application system． Hardware is mainly used for real-time monitoring of important data of people and objects in disaster areas， including basic attribute data stored in RFID tags objects， disaster area environmental data from all kinds of sensors and coordinate information of networking members from the coprocessing of satellite and GPS chip． These information are transferred to data center through wireless RF network， either to take emergency measures Real-time， or to bring convenience to further rescue．

The paper researches the principle and solutions of IIR Digital Filter design，mainly introduces the impulse invariance method and bilinear transformation method，and introduces their MATLAB based implementation taking the digital Butterworth filter as an example ．

In indoor location， the accuracy of positioning is affected by the environment．This paper proposes a method to adapt to the changing of the environment．This method is improved on the base of the fingerprint database．In order to predict the real-time signal strength，it adds some reference points in off-time stage，and establishes relation of the signal strength of the reference points and mobile terminals．And in order to decrease the error of the relation，a sub-regional model is proposed．In real-time positioning stage，it can determine the location of mobile terminal by comparing the prediction signal strength with the real-time signal strength．

To solve the order arrangement of the database query results，this article explores the pager solution based on PHP．It is used in the campus information release system．This technology can improve the query efficiency，and reduce system load，so that the results are more standardized．

The inventory management system based on UML provides the storage management function．It supplies real-time display of dynamic information．It provides the basis for decision making for the production scheduling and inventory scheduling of enterprises．This paper discusses the use of UML in warehouse management，describes the advantages of modeling the inventory management system with uml and key technologies by depicting the case diagram，class diagram and function block diagram．

According to the traditional traffic data collection，a design method of hand-held device based on MCU is discussed in this paper．This instrument has models count，cycle settings and data query functions．It applies to the practice work of traffic engineering student．

This paper design a templet macros of examination paper that takes advantge of mathemtical typesetting of LaTeX ，acording to characteristics of EngineeringMechanics，and Mathematics，and Technetronic etc．This templet is not only applied to typeset exmination paper of engineering course，such as Engineering Mechanics etc，but also appled to typeset exmination paper of liberal arts，such as Language，Politics etc．

Based on the wiki system，the wiki collaborative learning platform completes the secondary development，to realize the automatic division of cooperation group．In this paper，clustering algorithm is used to divide the cooperation group according to the learners’ key characteristics，enabling collaborative learning to achieve optimal performance．

As a kind of new typed calculation mode，cloud computing is on the basis of grid computing， parallel computing and develops．Introduces the system structure，cloud computing main technical and application，and Summarizes the GFS file system BigTable and MapReduce programming model of Google cloud computing．

Home gateway is the center of the home network controller，and it is the interface of the home information center and the network interaction within inside and outside．This model is discussed from the control system，the hardware structure，the hardware structure，the realization of wireless home networking，the communication protocol design and the remote monitoring system，and ultimately B / S mode is used to complete the design of remote monitoring services．

VRay is a high-quality rendering software．It is one of the important tools for mapping the business effect pictures，especially for mapping the rooms’effect pictures．However，the noise problems seriously affect the quality of images when rendering．According to some years of teaching experience in this field，I summarize some reasons about causing noise problems when rendering，and indicate the solutions

This paper introduces wireless communication technology，the Bluetooth and infrared technology，elaborates the status and characteristics of their own from a different point of view，points out the future development of these two technology trends．

With the development of networks， the establishment and usage of the LAN are expanding to enterprises，schools，communities，families．But with the increasing number of computers，the IP address assigned increases，and the LAN IP address conflicts or the phenomenon of piracyhave occurr．All these have seriously affected the normal operation of LANs．In this article，from the angle of the operation of management strategies and techniques of practical applications strategies，the author puts forward his own suggestions and methods for solving the problems of LAN IP address conflicts，unauthorized use，in order to improve the efficiency of LAN management and maintenance．

In the process of programming， people always pursue clear，compact and efficient program．Quality is the most important issue that the software-requesters concern with．The successful criterion of software design is that the users can easily finish tasks which need to be completed．The high quality of software is realized with design but not rule and check．Developers and customers shall establish harmonious cooperation relationships．High quality comes from effective communication and cooperation between developers and customers．