艾倫的Memo與足跡

摘自: 萬物聯網新世代 smart city(麟瑞科技 ringline) http://www.ringline.com.tw/zh-tw/data/files/Tech%20forum/2017/2017_07.pdf http://www.ringline.com.tw/zh-tw/article_info.php?id=87 2015 IEKForum物聯網產業 https://www.itri.org.tw/chi/Content/NewsLetter/Contents.aspx?SiteID=1&MmmID=620605426331276153&MSid=654721577553103414 https://www.inside.com.tw/2016/07/12/what-is-the-gateway-and-why-should-i-care https://www.inside.com.tw/2016/07/26/the-internet-of-things-on-a-windows-based-gateway 物聯網閘道器是 IoT 生態圈中，不可或缺的一部份。它掌控著和本地感應器的溝通，以及遠端用戶的使用。自本文中您可探索 IoT 閘道器的功能，以及它會如何優化您的 IoT 應用程式。您亦可在 Intel® IoT Gateway Technology 裡獲得相關資訊。 IoT 生態圈是由許多元件以及層級組成。最底層包含感應器和硬體裝置，用以測量現實世界以及所有變量。閘道器在這些感應器以及硬體裝置間扮演著一個安全中介者，互換資訊至雲端（透過網路將資訊最終存於儲存系統）。最上層管理對 IoT 生態圈的全面性監控，解析應用程式以及生態圈所搜集來的資訊。（圖一） 圖一 物聯網生態圈 層級示意圖 閘道器在物聯網生態圈中，不一定作為單一獨立的元件，而是像網路閘道器一樣，連接所有遠端裝置，讓您調整整體佈建中裝置的多寡。針對 IoT 感應器，在擴增新功能（如安全性與管理性能）至生態圈時，閘道器顯得格外重要。讓我們針對 IoT 閘道器的使用與其功能，討論如何優化您的 IoT 方案。 什麼是閘道器？ IoT 閘道器是一個介於感應器與裝置間的中介硬體，且其應用程式會從擷取到的資料運算為...

http://lamspeople.epfl.ch/kirrmann/Pubs/IEC_62439-1/IEC_62439_Summary.pdf Media Redundancy Protocol  (MRP) is a data network protocol standardized by the  International Electrotechnical Commission  as IEC 62439-2. It allows rings of  Ethernet  switches to overcome any single failure with recovery time much faster than achievable with  Spanning Tree Protocol . [1]  It is suitable to most  Industrial Ethernet  applications. https://en.wikipedia.org/wiki/Parallel_Redundancy_Protocol Parallel Redundancy Protocol  ( PRP ) is a network  protocol  standard for  Ethernet  that provides seamless  failover  against failure of any network component. This redundancy is invisible to the application. PRP nodes have two ports and are attached to two separated networks of similar topology. PRP can be implemented entirely in software, i.e. integrated in the network driver. Nodes with single attachment can be attach...

Survey and Research: http://www.smallnetbuilder.com/tools/charts/router/view https://www.snbforums.com/threads/how-to-find-the-best-router-for-gigabit-internet.38635/ https://www.smallnetbuilder.com/lanwan/lanwan-howto/33095-how-to-find-the-best-router-for-gigabit-internet 1. Broadcom方案     (1)     LDK: Linux Development Kit (LDK) for the Broadcom iProc (integrated Processor) family of processors. The iProcLDK currently supports all the production iProc SOCs (Northstar/Northstar+/Northstar2/ … etc). It provides as buildroot package for toolchains/compiler, U-Boot loader, Linux kernel 3.6.5 BSP and applications. The LDK now has SAMBA optimized porting for NAS application.       (2)   ESDK: WLAN Enterprise SDK (or Enterprise Wireless SDK) which support to the Broadcom reference platforms. It provides bootloader (CFE/U-boot), Linux kernel 2.6.36 BSP, WiFi driver and application (with Enterprise features).   ...