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The scope of application for radars is strongly increasing in the fields of automotive. SkyRadar suggests an automotive radar lab with 77 GHz radars based on the FreeScopes technology for vocational education. Radar technology adds new layers of complexity and of qualification requirements to the automotive and autotronics technician, required to service, repair and calibrate the systems.

The infographic below shows the various areas of application in cars, and even more in autonomous vehicles.

Radar-applications in a car

Source: Analog Devices / Semiconductor Engineering

The vocational student is required to 

  • comprehend the concept,
  • be able to apply it, e.g., when installing or replacing a system in a car,
  • evaluate the system, e.g., to check whether a sensor is dysfunctional or decalibrated,
  • recalibrate the system and upgrade it, once better components are available

The trainee needs to comprehend and apply:

  • the radar block diagram
  • basic radar concepts (e.g., the radar equation)
  • distance measurement, the Doppler effect, I & Q signals
  • measuring and calibrating a radar system
  • for the more advanced students: beamforming to focus the radar into a specific direction

FreeScopes will serve as learning environment

With FreeScopes, the trainees will get familiarized with the radar block diagram. They can measure the raw data coming from real radars, and dive into rather complex contents like the radar-equation in an application based and easy-to-understand way.

FreeScopes-7-0-2-A-Scopes-and-Suppress-Source

They will learn to conduct distance measurement and understand the relationship between the classical radar scopes and the displays in the car.

FreeScopes-automotive-radar-screen-window

Even complex features are understandable

An important feature in automotive radar technology are the Doppler effect and the I & Q signals to determine velocity and direction of a moving object or person. When the car is driving, every object in the environment of the car has a relative speed and direction.

I-and-Q-Signals-in-Radar-Technology-img1

The FreeScopes applications make it easy for the trainees to get qualified even in these complicated subject fields, providing building blocks for FFT, I and Q signals and scopes for 3D visualization.

Doppler-Signal-in-3D-Scope

Infographic: A-Scope, 3D-Scope, Video, Real-Time Block Diagram
 
SkyRadar-Automotive-Sensor-simulation

Demo-Video: SkyRadar Automotive Sensing based on 4 radars allowing for 360° monitoring.

A specific radar hardware infrastructure for the automotive laboratory

SkyRadar suggests a set of the following components:

  • 4  radars (77 GHz) together with a small digital signal processing unit each, providing radar IQ data as output. The number of radars can be increased
  • a camera and a GPS sensor
  • a sever, supplying the radar data to 20 or more student computers concurrently
  • and Onboard Diagnosis Output (OBDII or III), providing standardized data for other systems

Components-of-the-skyradar-automotive-lab

 

Deployment

This solution can either be provided stand-alone or embedded into training solutions by manufacturers of automotive training solutions. We invite the manufacturers to team up with us, allowing to provide a holistic autotronic solution.

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References & Further Reading

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