基于315 Mhz无线射频技术的全向遥控小夜灯

An Omnibearing Remote Control Night-Light Based on 315 Mhz Wireless Radio Frequency Technique

摘要: 21世纪的人口老龄化浪潮已经成为了全球发展的趋势。自从2000年以来，我国逐渐步入了老龄化国家行列。老年人的健康问题、老年人人口数量的发展趋势等问题，现在已经受到很大的重视。老年人由于身体机能下降，夜间起夜、吃药、喝水等活动的频率增加，在黑暗中发生摔倒和撞伤的几率也增大。尤其对于独居老人，夜间发生意外伤害不易得到救助。本文针对老年人夜间活动不便设计了一种小夜灯，采用无线射频遥控技术，可以远程对小夜灯开关进行控制，且无需对准灯头，减少老年人夜间寻找灯泡开关的不便。按键设计简单大方，便于老年人夜间轻松稳定地按下。采用LED灯头和电路结构、亮度的优化设计，控制小夜灯成本，降低功耗和节约电能，解决部分老年人对于用经济成本方面的顾虑。

Abstract: Aged tendency of population has become a worldwide trend in 21th century. Since the year of 2000, our country has gradually stepped into ageing country camp. Health issue, population development tendency of the aged has been attached more importance. As somatic function of the aged drops, the frequency of the aged getting up at night to wash, medicine, drink increases, the odds of falling and crushing in the darkness also increases. Especially for the aged who live alone, if accident happens at night, they will not get help easily. This paper designed a night-light aiming at reducing the aged inconvenience during their night activities. The night-light adopts wireless RF remote control technique, and the old can control night-light on and off remotely without remote aiming at the night-light, reducing the inconvenience of finding light switch at night. The key is designed simply and apparently, easy to press stably at night for the aged. LED lamp cap is ado- pted and circuit configuration and lamp luminance are optimized to control the night-light’s cost, reduce power dissipation and save electricity, which solve the scruple of economic issue of some aged people.