Soli is a new sensing technology that uses miniature radar to detect touchless gesture interactions. These have vast features .Soli is a purpose-built interaction sensor that uses radar for motion tracking of the human hand.The sensor tracks sub-millimeter motion at high speeds with great accuracy. Soli have ubiquitous gesture interaction language that will allow people to control devices with a simple, universal set of gestures.
The concept of Virtual Tools is key to Soli interactions: Virtual Tools are gestures that mimic familiar interactions with physical tools. This metaphor makes it easier to communicate, learn, and remember Soli interactions.Imagine an invisible button between your thumb and index fingers – you can press it by tapping your fingers together. Or a Virtual Dial that you turn by rubbing thumb against index finger. Imagine grabbing and pulling a Virtual Slider in thin air. These are the kinds of interactions we are developing and imagining.
Imagine an invisible button between your thumb and index fingers – you can press it by tapping your fingers together. Or a Virtual Dial that you turn by rubbing thumb against index finger. Imagine grabbing and pulling a Virtual Slider in thin air. These are the kinds of interactions we are developing and imagining.
So that’s the Technology . so let’s read how it works . Soli sensor technology works by emitting electromagnetic waves in a broad beam.Objects within the beam scatter this energy, reflecting some portion back towards the radar antenna. Properties of the reflected signal, such as energy, time delay, and frequency shift capture rich information about the object’s characteristics and dynamics, including size, shape, orientation, material, distance, and velocity.Soli tracks and recognizes dynamic gestures expressed by fine motions of the fingers and hand. In order to accomplish this with a single chip sensor, we developed a novel radar sensing paradigm with tailored hardware, software, and algorithms. Unlike traditional radar sensors, Soli does not require large bandwidth and high spatial resolution; in fact, Soli’s spatial resolution is coarser than the scale of most fine finger gestures. Instead, our fundamental sensing principles rely on motion resolution by extracting subtle changes in the received signal over time. By processing these temporal signal variations, Soli can distinguish complex finger movements and deforming hand shapes within its field.
The Soli sensor is a fully integrated, low-power radar operating in the 60-GHz ISM band. In our journey toward this form factor, we rapidly iterated through several hardware prototypes, beginning with a large bench-top unit built from off-the-shelf components — including multiple cooling fans. Over the course of 10 months, we redesigned and rebuilt the entire radar system into a single solid-state component that can be easily integrated into small, mobile consumer devices and produced at scale.
so as a conclusion What are the potential applications of Soli? The Soli chip can be embedded in wearables, phones, computers, cars and IoT devices in our environment.Soli has no moving parts, it fits onto a chip and consumes little energy. It is not affected by light conditions and it works through most materials. Just imagine the possibilities…
Image Source and Reference : Project Soli