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使用简单触摸传感器的有效照明控制

消耗积分:0 | 格式:rar | 大小:0.10 MB | 2017-06-22

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  使用简单触摸传感器的有效照明控制

  Mention ‘touch sensors’ or ‘touch control’ today and most people will tend to think of touchscreen displays, whether these are the cash machines (ATMs) used by banks, the self-scanning checkout terminals in grocery stores, or increasingly our smartphones, tablet computers and e-reader devices. These uses certainly reflect the advances that this technology has brought to our modern life, but not every application requires this level of sophistication and more basic touch sensors still have a role to play in providing convenient, easy-to-use controls. Lighting, for the home, office or factory, is a prime example where often all that is required is the ability to turn lights on and off or apply a simple dimming function. While touch control of lighting is not new, the broader developments in touch sensing have seen a proliferation in dedicated ICs that make it even easier and more cost-effective to design touch controls for lighting.

  This article will look at the various touch control technologies developed by companies like Atmel (AT42QT1012, AT42QT1010, AT42QT2100), Freescale (MPR031) and Analog Devices (AD7148), focusing on the products which are specifically intended to support simple single-touch button, wheel and slider controls. The aim will be to understand the ease with which these devices can be incorporated into lighting applications and the end-user benefits they offer.

  使用简单触摸传感器的有效照明控制

  为什么触摸控制照明?

  在考虑触摸控制可能有利的地方之前,考虑更广泛的背景下的照明可能有助于欣赏众多应用程序和细分市场。然后,我们可以着手研究目前部署的开关和其他控制类型,以了解触摸传感技术的潜在好处可能是什么。

  如前所述,照明的触摸控制不是新的。网络搜索将不会返回由消费产品和家用照明控制主导的结果。其中许多是用于心情照明,书桌,桌子和床头灯和虚荣产品(如照明化妆镜),但有趣的是,显然有强烈的需求后市场产品,取代标准的墙壁开关。那么是什么推动了这种需求呢?不可避免的是,没有一个单一的答案,它往往不是纯粹的实际或符合人体工程学的原因-风格,复杂,只是被认为是一个“酷”的技术提供了一些更感性的反应,这个问题。当然,从实用的角度来看,触摸台灯身体要打开或关闭可以比摸索容易得多的能力,也许在黑暗中,一个机械开关,可以在灯罩或将电源线。通常可以添加一次、两次或三次以达到不同亮度水平的设备是另一个好处。这些优点扩展到墙壁开关,定位触摸板可以比操作摇杆或拨动开关或调光开关的开关或滑块更简单。电容式触摸感应控制的另一个好处是,它们可以安全(在较低的电压下运行),用于浴室、厨房或其他潮湿环境,因此它们可以代替天花板安装的拉绳开关。

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