Enocean联盟

EnOcean联盟 – 适用于智慧建筑的能量采集无线标准 改善工作与居住环境  研究证明优化后的楼宇自动化技术可带来多种好处  更高的工作效率  减少病假/缺勤的时间

蓝牙核心技术

蓝牙，是一种支持设备短距离通信（一般10m内）的无线电技术。能在包括移动电话、PDA、无线耳机、笔记本电脑、相关外设等众多设备之间进行无线信息交换。利用“蓝牙”技术，能够有效地简化移动通信终端设备之间的通信，也能够成功地简化设备与因特网Internet之间的通信，从而数据传输变得更加迅速高效，为无线通信拓宽道路。蓝牙采用分散式网络结构以及快跳频和短包技术，支持点对点及点对多点通信，工作在全球通用的2.4GHz ISM（即工业、科学、医学）频段。其数据速率为1Mbps。采用时分双工传输方案实现全双工传输。

POE lighting

This report considers the implementation of lightning surge protection for Power over Ethernet (PoE) powered sourcing equipment (PSE) applications. The necessity for implementing such protection will normally depend on the environment in which the PSE is intended to operate and the inherent isolation properties of the PSE. There are numerous compliance standards to consider when establishing the surge protection level of the PSE. These standards normally introduce a number of test conditions for various types of products ranging from main's power supplies to legacy telephone equipment. This report examines the various standards in an effort to relate the test conditions that would most likely be applicable to PoE PSE applications and provides suggestions for meeting the associated surge requirements.