This book paves the path toward fourth generation (4G) mobile communica- tion by introducing mobility in heterogeneous IP networks with both third generation (3G) and wireless local area networks (WLANs), which is seen as one of the central issues in the becoming 4G of telecommunications networks and systems. This book presents a thorough overview of 3G networks and standards and discusses interworking and handover mechanisms between WLANs and the Universal Mobile Telecommunication System (UMTS).
標簽: Wireless towards WLANs WPANs 4G
上傳時間: 2020-06-01
上傳用戶:shancjb
District energy (DE) systems use central heating and/or cooling facilities to provide heating and/or cooling services for communities. The advantages of district energy over conventional heating and cooling include improved efficiency, reliability and safety, reduced environmental impact, and for many situations better economics. DE systems can be particularly beneficial when integrated with cogeneration plants for electricity and heat, i.e., with combined heat and power (CHP) plants. One of the main impediments to increased use of cogeneration-based district energy is a lack of understanding of the behavior of integrated forms of such systems. This book is aimed at providing information on district energy and cogeneration tech- nologies, as well as systems that combine them.
標簽: Cogeneration District Systems Energy and
上傳時間: 2020-06-07
上傳用戶:shancjb
The use of renewable energy systems, such as wind power, hydropower, tidal power, solar power, geothermal power and biomass burn is growing. Research in electric power generation from renewable sources is continuously expanding and stands for an area of high technological and financial importance. The implemen- tation of new technologies for the functioning and management of renewable energy systems will help to further develop the renewable energy sector.
標簽: Intelligent Renewable Systems Energy
上傳時間: 2020-06-07
上傳用戶:shancjb
Switched systems are embedded devices widespread in industrial applications such as power electronics and automotive control. They consist of continuous-time dynamical subsystems and a rule that controls the switching between them. Under a suitable control rule, the system can improve its steady-state performance and meet essential properties, such as safety and stability, in desirable operating zones.
標簽: Invariance Switching Analysis1 Systems by
上傳時間: 2020-06-07
上傳用戶:shancjb
RFID networks are currently recognized as one a research area of priority. Research activities related to RFID technology have been booming recently. A number of ongoing projects are being funded in Europe, Asia, and North America. According to leading market analysts, the development of the RFID market is projected to increase from approximately $3 billion in 2005 to $25 billion in 2015. Several countries have dedicated innovation programs to support and develop RFID systems and related technologies: the RFID initiative in Taiwan, Ubiquitous Japan and the NSF SBIR program in the USA. The EU has recently advertised its Strategic Research Roadmap concerning the Internet of Things, which first of all refers to the RFID technology before being extended to commu- nicating devices as in M2M (Machine to Machine). In this roadmap, several application domains have been identified:
上傳時間: 2020-06-08
上傳用戶:shancjb
Control Systems Engineering is an exciting and challenging field and is a multidisciplinary subject. This book is designed and organized around the concepts of control systems engineering using MATLAB, as they have been developed in the frequency and time domain for an introductory undergraduate or graduate course in control systems for engineer- ing students of all disciplines.
上傳時間: 2020-06-10
上傳用戶:shancjb
Control systems are becoming more important every day. At the beginning, the in- dustry used sequential controls for solving a lot of industrial applications in control systems, and then the linear systems gave us a huge increase in applying automatic linear control on industrial application. One of the most recent methods for control- ling industrial applications is intelligent control, which is based on human behavior or concerning natural process.
標簽: Intelligent Control Systems LabVIEW with
上傳時間: 2020-06-10
上傳用戶:shancjb
Control systems are used to regulate an enormous variety of machines, products, and processes. They control quantities such as motion, temperature, heat flow, fluid flow, fluid pressure, tension, voltage, and current. Most concepts in control theory are based on having sensors to measure the quantity under control. In fact, control theory is often taught assuming the availability of near-perfect feedback signals. Unfortunately, such an assumption is often invalid. Physical sensors have shortcomings that can degrade a control system.
標簽: Observers Control Systems in
上傳時間: 2020-06-10
上傳用戶:shancjb
基于嵌入式CPU內核-IAR-Systems-32位編譯器執行周期減半這是一份非常不錯的資料,歡迎下載,希望對您有幫助!
上傳時間: 2021-12-01
上傳用戶:1208020161
隨著我國國民經濟的高速發展,國內高速公路、城市道路、停車場建設越來越多,對交通控制、安全管理的要求也日益提高,智能交通系統( IntelligentTransportation Systems,簡稱ITS)已成為當前交通管理發展的主要方向,而車牌識別系統(License Plate Recognition System,簡稱LPRS)技術作為智能交通系統的核心,起著舉足輕重的作用,可以被廣泛地應用于高速公路自動收費(ElectronicToll Collection,簡稱ETC)、停車場安全管理、被盜車輛的追蹤、車流統計等。 目前,車牌識別系統大多都是基于PC平臺的,其優勢是實現容易,但是成本高、實時性不強、穩定性不高等缺點使其不能廣泛推廣。為了克服以上的缺點,且滿足識別速度和識別率的要求,本文在原有車牌識別硬件系統設計的基礎上做了一定的改進(原系統在圖像采集、接口通信、系統穩定、脫機工作等方面存在一定問題),與團隊成員一起設計出了新的車牌識別硬件系統,采用單DSP+FPGA和雙DSP+FPGA雙板子的方式來共同實現(本人負責單DSP+FPGA的原理圖和PCB繪制,另一成員負責雙DSP+FPGA的原理圖和PCB繪制)。 本文所涉及的該車牌硬件系統,主要工作由以下幾個部分組成: 1.團隊共同完成了新車牌識別系統的硬件設計,采用兩個板子實現。其中,本人負責單DSP+FPGA板子繪制。 2.團隊一起完成了整個系統的硬件電路調試。主要分為如下模塊進行調試:電源,DSP,FPGA,SAA7113H視頻解碼器,LCD液晶顯示和UART接口等。 3.負責完成了整個系統的DSP應用程序設計。采用DSP/BIOS操作系統來構建系統的框架,添加了多個任務對象進行管理系統的調度;用CSL編寫了DSP上的底層驅動:完成了車牌識別算法在DSP上的移植與優化。 4.參與完成了部分FPGA程序的開發,主要包括圖像采集、存儲、傳輸幾個模塊等。 最終,本系統實現了高效、快速的車牌識別,各模塊工作穩定,能脫機實現圖像采集、傳輸、識別、結果輸出和顯示為一體化的功能;為以后進行高性能的車牌識別算法開發提供了一個很好的硬件平臺。
上傳時間: 2013-04-24
上傳用戶:slforest