The Internet of Things is considered to be the next big opportunity, and challenge, for the Internet engineering community, users of technology, companies and society as a whole. It involves connecting embedded devices such as sensors, home appliances, weather stations and even toys to Internet Protocol (IP) based networks. The number of IP-enabled embedded devices is increasing rapidly, and although hard to estimate, will surely outnumber the number of personal computers (PCS) and servers in the future. With the advances made over the past decade in microcontroller,low-power radio, battery and microelectronic technology, the trend in the industry is for smart embedded devices (called smart objects) to become IP-enabled, and an integral part of the latest services on the Internet. These services are no longer cyber, just including data created by humans, but are to become very connected to the physical world around us by including sensor data, the monitoring and control of machines, and other kinds of physical context. We call this latest frontier of the Internet, consisting of wireless low-power embedded devices, the Wireless Embedded Internet. Applications that this new frontier of the Internet enable are critical to the sustainability, efficiency and safety of society and include home and building automation, healthcare, energy efficiency, smart grids and environmental monitoring to name just a few.
標簽： Embedded Internet Wireless 6LoWPAN The
上傳時間： 2020-05-26
上傳用戶：shancjb
Mobile communication devices like smart phones or tablet PCS enable us to consume information at every location and at every time. The rapid development of new applications and new services and the demand to access data in real time create an increasing throughput demand. The data have to be transmitted reliably to ensure the desired quality of service. Furthermore, an improved utilization of the bandwidth is desired to reduce the cost of transmission.
標簽： Architectures Processing Baseband Signal for
上傳時間： 2020-05-26
上傳用戶：shancjb
Smartphones have become a key element in providing greater user access to the mobile Internet. Many complex applications which used to be limited to PCS, have been developed and operated on smartphones. These applications extend the functionalities of smartphones, making them more convenient for users to be connected. However, they also greatly increase the power consumption of smartphones, making users frustrated with long delays in Web browsing.
標簽： Browsing Mobile Cloud Using Web the
上傳時間： 2020-05-30
上傳用戶：shancjb
近20年來以蜂窩移動通信為龍頭的無線應(yīng)用技術(shù),包括PCS電話、無線局域網(wǎng)(WLAN)、全球定位系統(tǒng)(GPS).直播電視服務(wù)(I)BS)、本地多點分布系統(tǒng)(LMDS)和射頻識別系統(tǒng)(RFID)等在內(nèi),已經(jīng)獲得了戶大的發(fā)展。人們越來越清楚地認識到射設(shè)計在整個尤線應(yīng)用系統(tǒng)中舉足輕重的地位,因此目前各高等院校的通信電子類本科專業(yè)都巳把高頻電路或通信電路作為--門主要的專業(yè)基礎(chǔ)課。
上傳時間： 2021-11-14
上傳用戶：
BMS 與儲能 PCS 通信協(xié)議（RS485 接口）1.1、協(xié)議說明1） 采用RS485通訊接口；2） 標準MODBUS規(guī)約；3） 傳輸方式：異步方式；4） 數(shù)據(jù)傳送速率：9600bit/s，BMS端主動發(fā)送，上送間隔500mS；5） 數(shù)據(jù)傳送格式：起始位1位，數(shù)據(jù)位8位，停止位1位，無校驗，低字節(jié)在前；6） CRC16：從校驗信息字節(jié)內(nèi)容1到信息字節(jié)內(nèi)容14做CRC校驗。
上傳時間： 2022-01-05
上傳用戶：
Introduction The Sil9135/Sil9135A HDMI Receiver with Enhanced Audio and Deep Color Outputs is a second-generation dual-input High Definition Multimedia Interface(HDMI)receiver. It is software-compatible with the Sil9133receiver, but adds audio support for DTS-HD and Dolby TrueHD. Digital televisions that can display 10-or 12-bit color depth can now provide the highest quality protected digital audio and video over a single cable. The Sil9135and Sil9135A devices, which are functionally identical, can receive Deep Color video up to 12-bit,1080p @60Hz. Backward compatibility with the DVI 1.0specification allows HDMI systems to connect to existing DVI 1.0 hosts, such as HD set-top boxes and PCS. Silicon Image HDMI receivers use the latest generation Transition Minimized Differential Signaling(TMDS) core technology that runs at 25-225 MHz.The chip comes pre-programmed with High-bandwidth?
上傳時間： 2022-06-25
上傳用戶：
主控平臺：STM32F103RCT6逆變拓撲：全橋功能：并網(wǎng)充電、放電；并網(wǎng)離網(wǎng)自動切換；485通訊，在線升級；描述：本方案適用于戶用儲能系統(tǒng)，提供完善的通訊協(xié)議適配BMS和上位機 本方案可實現(xiàn)并網(wǎng)充電、放電；自動判斷并離網(wǎng)切換；可實現(xiàn)并機功能；風扇智能控制；提供過流、過壓、短路、過溫等全方位的保護基于arm的方案區(qū)別于DSP，提供一種性價比極高的選擇可在此基礎(chǔ)上開發(fā)各衍生的電源產(chǎn)品
上傳時間： 2022-07-26
上傳用戶：zhanglei193
描述：本方案適用于戶用儲能系統(tǒng)，提供完善的通訊協(xié)議適配BMS和上位機 本方案可實現(xiàn)并網(wǎng)充電、放電；自動判斷并離網(wǎng)切換；可實現(xiàn)并機功能；風扇智能控制；提供過流、過壓、短路、過溫等全方位的保護基于arm的方案區(qū)別于DSP，提供一種性價比極高的選擇可在此基礎(chǔ)上開發(fā)各衍生的電源產(chǎn)品
上傳時間： 2022-07-26
上傳用戶：
逆變拓撲：全橋功能：并網(wǎng)充電、放電；并網(wǎng)離網(wǎng)自動切換；
標簽： stm32f103 PCS 逆變器 并網(wǎng) 充放電
上傳時間： 2022-07-26
上傳用戶：
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