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We review the current applications of photonic technologies to Smart Cities. Inspired
by the future needs of Smart Cities, we then propose potential applications of advanced
photonic technologies. We find that photonics already has a major impact on Smart
Cities, in terms of smart lighting, Sensing, and communication technologies. We further
find that advanced photonic technologies could lead to vastly improved infrastructure,
such as smart water‐supply systems. We conclude by proposing directions for future
research that will have the greatest impact on realizing Smart City initiatives.
標簽：
Photonics
Cities
Smart
上傳時間：
2020-05-26
上傳用戶：shancjb
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Over the past few decades, wireless communications and networking have witnessed an
unprecedented growth, and have become pervasive much sooner than anyone could have
predicted. For example, cellular wireless networks are expected to become the dominant
and ubiquitous telecommunication means in the next few decades. The widespread
success of cellular and WLAN systems prompts the development of advanced wireless
systems to provide access to information services beyond voice such as telecommuting,
video conferencing, interactive media, real-time internet gaming, and so on, anytime
and anywhere.
標簽：
Compressive
Networks
Wireless
Sensing
for
上傳時間：
2020-05-27
上傳用戶：shancjb
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The focus of this book is on developing computational algorithms for transmit wave-
form design in active Sensing applications, such as radar, sonar, communications and
medical imaging. Waveforms are designed to achieve certain desired properties, which
are divided into three categories corresponding to the three main parts in the book,
namely good aperiodic correlations, good periodic correlations and beampattern match-
ing.
標簽：
Waveform
Desig
上傳時間：
2020-06-01
上傳用戶：shancjb
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A Canada Centre for Remote Sensing Remote Sensing Tutorial
標簽：
遙感
上傳時間：
2021-02-02
上傳用戶：
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ADS1118模塊資料熱電偶測量文檔資料硬件參考設計及MSP430軟JDEMO代碼:430BOOST-ADS1118 Booster Pack.pdfADS1118-english.pdfads1118.pdfCJMCU-1118資料IMP NOTICE for REF DESIGNS.pdfMSP430-ADS1118PCBPrecision Thermocouple Measurement with the ADS1118.pdfSCH and BOMTemperature Sensing.pdf使用ADS1118進行精密熱電偶測量.pdf模數轉換術語詞匯表.pdf高速數據轉換.pdf
標簽：
ads1118
熱電偶
測量
硬件
上傳時間：
2021-11-03
上傳用戶：zhaiyawei
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General Design Specification:1. AC Input Range 180-264Vac, Isolated ac-dc offline, 12LEDS,Output 700mA2. Intelligent wall dimmer detections(Leading-edge dimmer , Trailing-edgedimmer , No-dimmer)3. Multiple dimming control scheme4. Wide dimming range from 1% up to 100%5. No visible flicker6. Resonant control to achieve high efficiency7. High Power Factor, 0.9 without dimmer8. Temperature degrade control to adjust the LED9. Primary-only Sensing eliminates opto-isolator feedback and simplifies design
標簽：
iw3617
上傳時間：
2021-12-03
上傳用戶：canderile
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近年來反季節種植已成火熱趨勢,溫室大棚的普及十分迅速,而溫室大棚對自動化、智能化的要求也越來越迫切,本系統將溫室大棚的溫濕度、二氧化碳濃度各個方面的檢測,通風、澆灌、溫度、噴灑農藥等各個方面的控制進行綜合系統研究,實現溫室大棚對自動化、智能化的要求。這一系統是基于單片機控制的智能檢測,控制系統包含單片機主控模塊、感應檢測模塊、傳感模塊,顯示、控制模塊等[1]。從而提高溫室大棚的種植效率,減少勞動力,提高利潤等。In recent years,counter-season planting has become a hot trend featuring the rapid popularization of greenhouse and urgent requirement for the automation and intellectualization of greenhouse.This paper offers a comprehensive and systematic study of the monitoring of temperature,humidity and carbon dioxide concentration in the greenhouse and the control of ventilation,irrigation,temperature and pesticide spraying in order to achieve automation and intellectualization in greenhouse.This system is based on the intelligent detection controlled by single chip computer with the control system including the main control module,induction detection module,Sensing module,display and control module of single chip computer,which is effective in improving planting efficiency of greenhouse,reducing labor force and increasing profits.
標簽：
智能溫室大棚
控制系統
上傳時間：
2022-03-27
上傳用戶：
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近距電能傳輸——高效安全近距電能傳輸一般基于電磁感應原理進行。在此技術基礎上，當接收器鄰近發射器時才會進行電能傳輸。電磁感應技術的歷史長達百年，多年米一直應用于各類電子產品中—如此普及全因其簡單、高效以及安全技術概覽以下將為你簡要介紹無線電能傳輸技術。System Overview(Communication)Receiver sends messagesTo provide control information to the transmitterBy load modulation on the power signaTransmitter receives messagesTo receive control information frorn the recelverBy de-modulation of the reflected loadPower Pick Up( Receiver)Secondary coil (L Serial resonance capacitor (C) for efficient power transfer Parallel resonance capacitor(C, )for detection purposes Rectifier: full bridge(diode, or switched)+ capacitor Output switch for(dis)connecting the loadReceiver modulates load by Switching modulation resistor(R,n),or Switching modulation capacitor(Ca)Transmitter de-modulates reflected load by Sensing pnmary coil curent (p)and/o Sensing primary coil voltage (V,
標簽：
qi
無線充電
上傳時間：
2022-03-31
上傳用戶：
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為適應雙向DC/DC功率變換的電流采樣需求,一種高精度高邊電流采樣電路被提出。其基本思想是在功率電路的高邊串入采樣電阻,借助電流鏡原理并引入偏置電流電路,將雙向電流均轉換為正向電壓輸出。通過理論分析與仿真結合的方法對電流鏡采樣原理及4種不同的偏置電流電路方案進行對比,最后通過實驗數據驗證了高精度高邊電流采樣電路的有效性。實驗數據表明,該采樣電路可在-25~75℃的溫度工作范圍內,針對-10~＋10 A范圍內的電流采樣實現優于5%的采樣精度。Current Sensing plays an important role in controlling,monitoring or protection functions of power systems.To meet the current Sensing requirement of bidirectional DC/DC converters,a high-accuracy bidirectional current Sensing circuit is proposed.The proposed current Sensing circuit inserts a resistor in the path of the current to be sensed,while the current mirror and biased current circuit are introduced.Therefore,the bidirectional current can be expressed by positive voltage.By theoretical analysis and simulation,the sampling theory is analyzed and four biased current circuits are compared.At last,experimental results verified the proposed method.It is demonstrated that the proposed current Sensing circuit can achi...
標簽：
雙向DC電源
電流采樣
上傳時間：
2022-04-22
上傳用戶：
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VIP專區-嵌入式/單片機編程源碼精選合集系列（16）資源包含以下內容：1. OHMETER/TEMPERATURE Sensing PROGRAM for pic16c5x.2. VOLTMETER/AD CONVERTER PROGRAM.3. Interface HT1621 to PIC16C5X.4. linux pda 輸入法.5. PDA上的X86模擬器.6. verilog浮點乘發器.7. verilog浮點乘發器.8. verilog浮點乘發器.9. verilog浮點乘發器.10. c語言浮點乘發器.11. 我自己寫的ds1820b溫度測量程序.12. verilog寫的回波抵消程序.13. DMDD的嵌入式系統構件源代碼.14. AVR pocsag解碼.15. ATMEL-Wireless and Microcontrollers 2000 flash api.16. 液晶GXM12232的間接訪問源碼。僅供參考。.17. 24c256的編程。（改載）.18. 實用遙控器解碼程序.19. 實用遙控器編碼程序1.20. 偽隨機序列編碼源程序.21. 凌陽數據采集遠程.22. cpld數據采集測頻.23. 鍵盤設計 ,好東東啊.24. ADUC8XX代碼.25. ADUC8XX代碼.26. ADUC8XX代碼.27. PPC上可以在對話框中加入菜單的例程（兩種方式實現）.28. 公開源代碼的嵌入式操作系統r&s!建議學習！.29. SHOWFAT 顯示磁盤FAT信息.30. WINHEX11V2 顯示磁盤及文件信息.31. 步進電機控制試驗.32. Test Timer_A PWM Functions.33. 嵌入式操作系統及開發環境by 李駒光.34. 類linux操作系統的源代碼.35. MiniWeb 在嵌入式平臺上運行的WEB源代碼.36. 嵌入式http源代碼的文檔資料.37. ucfs2004.38. 幾個值得學習的C源程序.39. 基于44b0X核心的 開發板的源代碼.40. 能夠測轉速的小程序.
標簽：
公差
實用技術
上傳時間：
2013-04-15
上傳用戶：eeworm
