touchless gesturing brings new innovation to electronic ...

by:DGT Lighting     2020-02-22
Human-Over the past decade, Machine interaction has developed significantly through enhanced user interfaces and intelligent design.Many of these changes are focused on the touch screen interface.precision, low-Especially in the mobile phone market, the power capacitive touch screen is in the leading position.
Traditional infrared proximity sensing systems have taken traditional photos.Detectors and photosThe interrupt is triggered based on motion or interrupt, respectively.These proximity sensing solutions are widely used in automatic door and toilet distribution systems, but applications are limited due to the size, power and configurable nature of the sensor.
Evolution from singleto multi-Single-The LED driver proximity sensor has been used in touch screen phones for many years and is the highestBut there is no problem with their use.Why does a seemingly simple proximity sensing system often fail?The answer lies in the design and configuration of the sensors, as well as the mechanical guide accompanying them.Many infrared proximity sensors are like this: a dumb sensor that outputs raw data based on the received signal.
The latest generation proximity sensors such as the Silicon Labs \\ \'Si114x series address the drawbacks associated with poor operation of proximity sensors.For example, the advanced structure of the Si114x sensor has multiple high-sensitivity photodiodes and high-sensitivity photodiodesPrecision simulationto-Digital converter (ADC), which can turn on infrared LED for measurement in a fraction of the time of other less advanced sensor products.Faster measurement can also reduce the power of the entire system.
Infrared LED is the largest contributor to the power budget close to the system.Minimize the amount of time the LED needs to be maintained, thus reducing the power consumption of the entire system.With 15 dynamically adjustable LED drive settings, the LED drive strength can be adjusted according to ambient infrared conditions, thus saving power and bringing more energyEfficient design.
While single-The LED proximity system is driving the market today.The LED proximity sensor system realizes the unique innovation of the user interface.Two-LED infrared system supports sliding and selecting gestures for applications such as flip pages in e-commerceVolume selection in books, home audio devices, or scrolling in tablets.
An effective challenge to touchless interfaces is why they should be implemented.Why cancel touch buttons and touch screens if they work?The infrared system will not replace the existing system, but will increase the user experience.Increasing integration and downsizing are changing the way customers use electronics.
For a new generation of embedded electronics, coffee shops, restaurants, gyms, bus stops, aircraft terminals, and even toilets are a fair environment to use.In such a diverse operating environment, the user\'s hands are sometimes occupied, stained, sweaty or covered with food ---All conditions are not conducive to touch screen operation.Being able to control the device without looking at it has additional benefits.
For example, a touch-free interface can allow car drivers to start/end calls safely, or adjust the volume with a touch-free swipe of their hands without having to browse through complex meter sets to find control buttons.Not all devices have or need complex graphic displays with touch screens, and for such devices, a touch screen-free interface can provide innovative and differentiated approaches to operations
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