Smart Grids provide many benefits for society. Reliability, observability across the energy distribution system and the Exchange of information between devices are just some of the features that make Smart Grids so attractive. One of the main products of a Smart Grid is to data. The amount of data available nowadays increases fast and carries several kinds of information. Smart metres allow engineers to perform multiple measurements and analyse such data. For example, information about consumption, power quality and digital protection, among others, can be extracted. However, the main challenge in extracting information from data arises from the data quality. In fact, many sectors of the society can benefit from such data. Hence, this information needs to be properly stored and readily available. In this chapter, we will address the main concepts involving Technology Information, Data Mining, Big Data and clustering for deploying information on Smart Grids.
標簽： Processing Cities Smart Data in
上傳時間： 2020-05-23
上傳用戶：shancjb
Smart Grids provide many benefits for society. Reliability, observability across the energy distribution system and the Exchange of information between devices are just some of the features that make Smart Grids so attractive. One of the main products of a Smart Grid is to data. The amount of data available nowadays increases fast and carries several kinds of information. Smart metres allow engineers to perform multiple measurements and analyse such data. For example, information about consumption, power quality and digital protection, among others, can be extracted. However, the main challenge in extracting information from data arises from the data quality. In fact, many sectors of the society can benefit from such data. Hence, this information needs to be properly stored and readily available. In this chapter, we will address the main concepts involving Technology Information, Data Mining, Big Data and clustering for deploying information on Smart Grids.
標簽： Processing Cities Smart Data
上傳時間： 2020-05-25
上傳用戶：shancjb
Wireless penetration has witnessed explosive growth over the last two decades. Accordingly, wireless devices have become much denser per unit area, resulting in an overcrowded usage of wireless resources. To avoid radio interferences and packet collisions, wireless stations have to Exchange control messages to coordinate well. The existing wisdoms of conveying control messages could be classified into three categories: explicit, implicit, or hybrid.
標簽： Transmission Attachment Networks Wireless in
上傳時間： 2020-05-26
上傳用戶：shancjb
Wireless technologies like GSM, UMTS, LTE, Wireless LAN and Bluetooth have revolu- tionized the way we communicate and Exchange data by making services like telephony and Internet access available anytime and from almost anywhere. Today, a great variety of techni- cal publications offer background information about these technologies but they all fall short in one way or another. Books covering these technologies usually describe only one of the systems in detail and are generally too complex as a first introduction. The Internet is also a good source, but the articles one finds are usually too short and superficial or only deal with a specific mechanism of one of the systems. For this reason, it was difficult for me to recom- mend a single publication to students in my telecommunication classes, which I have been teaching in addition to my work in the wireless telecommunication industry. This book aims to change this.
標簽： GSM LTE-Advanced
上傳時間： 2020-05-27
上傳用戶：shancjb
Intensive development of digital technologies coincided in time with the beginning of the new era in telecommunications. It made possible to formalize many proce- dures of data Exchange and to atomize some operations which made providing of serviceandmakeworkofmanytelecommunicationworkersmucheasier. Somenew telecommunication technologies were born out of the necessity for use of specific configurations of network elements and networks, as well as for a possibility of providing maximum characteristics of efficiency combined with high requirements to the stability of operation, the overcoming of different catastrophic situations and deadlockconditions,such as failuresand ”pending”of the networkandthe like. The thresholdbetweeninformationsystems andtelecommunicationsystems has become practically invisible. It resulted in such a new term as ”infocommunication”
上傳時間： 2020-06-01
上傳用戶：shancjb
Recent advances in wireless communication technologies have had a transforma- tive impact on society and have directly contributed to several economic and social aspects of daily life. Increasingly, the untethered Exchange of information between devices is becoming a prime requirement for further progress, which is placing an ever greater demand on wireless bandwidth. The ultra wideband (UWB) system marks a major milestone in this progress. Since 2002, when the FCC allowed the unlicensed use of low-power, UWB radio signals in the 3.1–10.6GHz frequency band, there has been significant synergistic advance in this technology at the cir- cuits, architectural and communication systems levels. This technology allows for devices to communicate wirelessly, while coexisting with other users by ensuring that its power density is sufficiently low so that it is perceived as noise to other users.
上傳時間： 2020-06-01
上傳用戶：shancjb
The wide deployment of wireless networks and mobile technologies, along with the significant increase in the number of mobile device users, have created a very strong demand on various wireless-based, mobile-based software application systems and enabling technologies. This not only provides many new business opportunities and challenges to wireless and networking service providers, mobile technology ven- dors, and software industry and solution integrators, butalso changes and enhances people’s lives in many areas, including communications, information sharing and Exchange, commerce, home environment, education, and entertainment. Business organizations and government agencies face new pressure fortechnology updatesto upgrade their networking infrastructures with wireless connectivity to enhance enterprise-oriented systems and solutions.
標簽： Wireless-Based Software Systems
上傳時間： 2020-06-01
上傳用戶：shancjb
There is an unprecedented enthusiasm for radio frequency identification (RFID) technologies today. RFID is based on the Exchange of information carried by electromagnetic waves between a label, or tag, and a reader. This technology is currently in full economic expansion, which has manifested itself in widely backed research activities, some of which will be examined in this book.
標簽： Identification Frequency Sensors Radio and
上傳時間： 2020-06-08
上傳用戶：shancjb
Internet of Things (IoT) [26] is a new networking paradigm for cyber-physical systems that allow physical objects to collect and Exchange data. In the IoT, physical objects and cyber-agents can be sensed and controlled remotely across existing network infrastructure, which enables the integration between the physical world and computer-based systems and therefore extends the Internet into the real world. IoT can find numerous applications in smart housing, environmental monitoring, medical and health care systems, agriculture, transportation, etc. Because of its significant application potential, IoT has attracted a lot of attention from both academic research and industrial development.
標簽： Technologies Internet Things RFID for of
上傳時間： 2020-06-08
上傳用戶：shancjb
硬件組成：STC89C52單片機+最小系統+數碼管顯示模塊+數碼管驅動模塊+蜂鳴器模塊+按鍵模塊主要功能：1. 采用一個四位一體數碼管顯示比賽時間，時間格式如：15:00，兩個三位一體數碼管顯示甲乙兩對的比分，比分格式如：008；2. 比賽時間采用倒計時方式，以一秒的頻率減時，上電時默認初值為15:00。在沒有開始比賽時，“比賽時間”可以按鍵加減，比賽開始后不能修改；3. 甲乙隊比分采用三位數，上電初值為000，最大值為999，滿足常理要求，未開始比賽以及比賽結束后比分無法加減；4.本設計加了24秒倒計時功能，可通過按鍵隨時復位24秒。如果24秒違例，會啟動蜂鳴器報警，同時比賽時間暫停，處理好后按一下24秒復位鍵，比賽繼續；5. 比賽未開始之前，可以通過ADD1、DEC1鍵對比較時間的分鐘進調時，通過ADD2、DEC2鍵對比較時間的秒進行調時；6. 可隨時暫停/啟動比賽時間；7. 比賽進行時，可以通過ADD1、DEC1鍵對甲隊比分加、減，可以通過ADD2、DEC2對乙隊比分加、減。每按一次鍵，加/減1分；8. 當一節比賽完后，可以通過（Exchange）換場鍵換場，換場后，比分交換顯示，交換后，下一節比賽開始時，相應的比分加減鍵也隨之交換；9. 當比賽結束時，蜂鳴器發出聲音報警，提示比賽結束。
上傳時間： 2022-07-03
上傳用戶：qingfengchizhu
