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SOLI- A miniature radar hardware that allows gesture control devices :

SOLI- A miniature radar hardware that allows gesture control devices Guided by: Prof. Amit Kumar Nandi ( ECE Dept.) Academy of Technology, Adisaptagram Hooghly, West Bengal,712121 Presented by : ● Tandrita Roy || Roll: 29 ●Antara saha || Roll:T056 Dept: ECE1 ,Sem: 6th

CONTENTS:

CONTENTS Introduction About Soli Soli Chip(N27516) Hardware Architecture Software Core Technology of Soli Radar Technology Features of Radar Machine Learning Virtual Tools Examples of virtual gestures Working Principles Block Diagram Advantages Disadvantages Applications Future Scope Conclusion References

INTRODUCTION: :

INTRODUCTION: Soli is a project of Google ATAP(Advanced Technology and Projects group). It was announced at Google I/O 2015 telling the world about Soli. Also post their first promo video on 25th May 2015 relating purpose of Soli. It was announced as an interaction sensor making use of radar technology. Also it includes so many radar based sub projects under itself. Our hands and fingers are the best way we have to interact with smart devices. Soli is technically millimeter-wave radar that can detect micromotion of human hand.

About Soli:

About Soli Sensing Technology- that uses miniature radar to detect touchless gesture interactions. Detect hand movement in real time. Incorporate- Radar technology + Machine Learning Algorithm + Virtual Tools concept and produces gesture control devices.

Soli Chip(N27516) :

Soli Chip(N27516) The Soli chip incorporates the entire sensor and antenna array into an ultracompact 8mm x 10mm package. Captures motion of fingers at a rate : 10, 000 frames/sec. Detect movement of hand in 3D space. It can illuminate the hand with a broad 150 degree radar beam with pulses repeated at very high frequency(1-10 kHz). Uses Radar frequency: 60Ghz. It has a sensor which capture submilimeter of motions of fingers in 3D space..

HARDWARE ARCHITECTURE:

HARDWARE ARCHITECTURE Soli sensor technology works by emitting emitting electromagnetive waves in a broad beam. Objects within the beam scatter this energy,reflecting some portion black towards the radar antenna. Properties of the reflected signal,such as time delay,energy,and frequency shift capture rich information about the object’s characteristics and dynamics including shape,size,orientation,material,distance and velocity.

HARDWARE ARCHITECTURE:

HARDWARE ARCHITECTURE

SOFTWARE:

SOFTWARE The soli software architecture consists of a generalized gestures recognition pipeline which is hardware agnostic and can work with different types of radar. The pipeline implements several stages of signal abstraction. Raw radar data to signal transformations. Core and abstract machine learning features detection and tracking. UI tools to interpret gestures control.

CORE TECHNOLOGY OF SOLI: :

CORE TECHNOLOGY OF SOLI: Radar Technology Machine Learning Algorithm Virtual Tools

RADAR TECHNOLOGY: :

RADAR TECHNOLOGY: Radar is an object-detection system that uses radio waves to determine the range, angle, or velocity of objects. It sends radio waves towards the target and its receiver intercepts the motion. A radar system consists of transmitter producing electromagnetic waves in the radio or microwaves domain, a transmitting antenna , a receiving antenna (often the same antenna is used for transmitting and receiving) and a receiver and processor to determine properties of the object(s). Antenna sends Radio waves towards the target and its receiver intercepts the motion.

FEATURES OF RADAR: :

FEATURES OF RADAR: Insensitive to the light. Can transmit over plastic materials like polycarbonate. 3D gesture recognition possible. Recognition of overlapping fingers. Sub-millimeter resolution with micro-Doppler and time analysis.

MACHINE LEARNING: :

MACHINE LEARNING: Machine learning is subfield of computer science that evolved from the study of pattern recognition and computational learning theory in artificial intelligence. This is consider as a sub domain of artificial intelligence which take previous data and by analysis predict the future action and work accordingly.

VIRTUAL TOOLS:

VIRTUAL TOOLS The concept of virtual tool is the key to Soli interaction. Virtual tools are gestures that familiar interactions with physical tools. This make it easy to communicate, learn and remember soli interactions.

EXAMPLES OF VIRTUAL TOOL GESTURES: :

EXAMPLES OF VIRTUAL TOOL GESTURES: 1. Virtual Button : Imagine an invisible button between thumb and index fingers – now you can press it by tapping your fingers together. 2. Virtual Dial : Imagine an invisible dial between thumb and index finger – now you can turn it by rubbing thumb against index finger.

EXAMPLES OF VIRTUAL TOOL GESTURES: :

EXAMPLES OF VIRTUAL TOOL GESTURES: 3. Virtual Slider : Imagine grabbing and pulling a Virtual Slider in thin air by rubbing index and thumb finger  as shown. 4. Virtual Touch Screen : Imagine a screen and control the touching by sliding thumb finger over index finger as shown.

WORKING PRINCIPLES: :

WORKING PRINCIPLES: Soli sensor technology works by emitting electromagnetic waves in a broad beam. Object with in the beam scatter this energy, reflecting some portion back towards the radar. Properties of the reflected signal, such as energy, time delay and frequency shift capture rich information about the objects. Such as its characteristics and shape , size , material , distance and velocity.etc

WORKING PRINCIPLES: :

WORKING PRINCIPLES: It then uses machines-learning to translate these movement to preprogrammed commands. Doppler effect is used to detect speed. Virtual tools are used as a key to identify gestures. Finally, incorporating 3 concepts (radar + machine learning + virtual tools) soli sensor technology work appropriately.

BLOCKDIAGRAM:

BLOCKDIAGRAM

ADVANTAGES:

ADVANTAGES Replace all kinds of buttons and switches and make the devices operable remotely. Most of the existing motion sensor technique uses camera based motion sensing. Good accuracy over control. Need not to carry gadgets while using them. Alows free hand typing. Allows to control Gadgets with gestures. Very small in size. Low power consumption

DISADVANTAGES:

DISADVANTAGES It has a very small radar range. Multiple gestures could not be possible. Highly expensive. Security threat.

APPLICATIONS::

APPLICATIONS: 1. In Medical Field 2. In Gaming

APPLICATIONS::

APPLICATIONS: 3. In Smart Watches 4. In Electronic Gadgets

SOME MORE EXAMPLES::

SOME MORE EXAMPLES:

FUTURE SCOPE:

FUTURE SCOPE Presently Soli Development Kit is available for limited hardware and software developers. Project Soli is looking for developers to add some sub projects under it. It is also looking for developers to check the technology and build soli applications.

CONCLUSION:

CONCLUSION To control any electronic device, the main requirement is input and their is no such options for giving input for wired devices except mechanical input, there’s no simple way to control these devices. To resolve this problem soli comes into market with gesture control to do some functions of electronic devices wirelessly. Without affecting any environmental parameters (lights, temperature, humidity etc. Soli technology will play a crucial role in the future of wearable and mobile interactions,smart appliences and IOT,mobile VR and AR system.

REFERENCES:

REFERENCES https://atap.google.com/soli/ • https://www.youtube.com/watch?v=0QNiZfSsPc0 • https://arstechnica.com/gadgets/2019/01/googles-project-soli-radar-gesture-chip-isnt-dead-gets-fcc- approval/ Hand gesture machine control system- https://www.google.com/patents/US5594469

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