Radar-based Gesture Control System

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gesture control
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mmWave Radar can be used to provide a sleek, simple solution to capture hand gestures and improve the experience of the driver. Basic intuitive hand gestures allow the driver to control their vehicle with less distractions from the road. 

The evolution of the automobile has led to the desire for simpler and easier interaction with the ever-increasing amount of hardware found within both the infotainment console and body of the vehicle. Beyond direct human interfacing with a system through the physical press of a button or a customized voice control, basic intuitive hand gestures allow the driver to control their vehicle with less distractions from the road.

Automotive mmWave Radar Gesture Control Reference Design

This reference design provides an example of a full radar-based gesture control system in a very small form factor that is implemented within the infotainment center console, the overhead console, or anywhere else where both size and performance are primary goals.

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This system relies on the functionality of the AWR1642 device, a mmWave radar digital signal processor (DSP) and analog front end (AFE) that drives, senses, and analyzes 77- to 81-GHz signals. Using two TX antennas and capturing with four RX antennas, a frequency-modulated continuous wave (FMCW) radar system can capture various data points associated with the distance, angle, and velocity of the reflected radar signal to be translated into specific gestures being read.

Features

  • 77 GHz radar-based gesturing
  • CAN-FD gesture data output
  • Wide operating voltage: 3.5 V to 42 V
  • Small form factor: 50.3 mm x 56.7 mm
  • This circuit design is tested and includes gerbers, schematics, and BOM
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More details can be found here. 

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