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In-Vehicle Directional Audio Streaming

Aptiv Components India Pvt Ltd-Vijayalakshmi kr
Aptiv Components India Pvt, Ltd.-Anitha Loganathan
  • Technical Paper
  • 2019-28-2448
To be published on 2019-11-21 by SAE International in United States
In-Vehicle Infotainment has evolved greatly over years from a simple tuner based radio with a small LED display to a complex system with highly intelligent interactive HMI which can mirror the smart phone. The full-fledged entertainment features like watching videos are restricted to only rear passengers. In drive mode, drivers are limited with access to only audio to avoid driver distraction. Rear passengers and drivers are classified into different audio zones. Each of the rear passengers are equipped with headsets so that audio merging with driver zone can be avoided. This leads to passenger discomfort, as many passengers would not prefer to hook up with headset all the time. Now the automotive world is envisioned to reach fully autonomous mode where there is no driver and every passenger is interested to listen to music/video of diverse interest. The audio zones in autonomous car need not be zonified or linear. Circular audio zone can also be a good choice for autonomous cars. There are situations in autonomous cars where passenger is asleep in vehicle and hence…


Diploma Holder in Mechanical Engineering-DEEPAK MALVIYA
  • Technical Paper
  • 2019-28-2455
To be published on 2019-11-21 by SAE International in United States
Research and/or Engineering Questions/Objective - This invention relates to introduction of GREEN LED LIGHT for safety, fuel saving, pollution control and motion indicator in automobiles. At present, every vehicle is provided with red light, orange light and white light at the rear end of the vehicle. Now, there is no such light which can tell about the motion of the vehicle, whether the vehicle's engine is using its power to move or going on in rolling condition. According to the present invention a GREEN LED LIGHT is introduced at the rear end f the vehicle. The green led light is on when the vehicle is using its engine's power to move. At present, when we drive behind the vehicle we continuously make assumption about the motion of the vehicle in front of us. This GREEN LED LIGHT will give exact information about the motion of the vehicle. Therefore, by this information given by the Green Led Light, we do not have to make assumption, the frequent use of accelerator is avoided in the vehicle behind,…

Vision Based Surface Roughness Characterization of Flat Surfaces Machined with EDM.

BSA Crescent Institute of Science & Technology-Mahashar Ali, Siddhi Jailani, Mangalnath Anandan, Vignesh Pavithran
Vellore Institute of Technology-Murugan Mariappan
  • Technical Paper
  • 2019-28-0148
To be published on 2019-10-11 by SAE International in United States
Controlling and measuring the surface roughness is an important issue in quality manufacturing. Conventional method of measuring the surface roughness using stylus instrument is an intrusive and contact type hence it is not suitable for online measurement which result, there is an increasing need for a reliable, non-contact method of surface roughness measurement. Over the few years, advances in image processing techniques have provided the basis for developing image based surface roughness measuring techniques. In this investigation, a vision system and image processing tools were used to develop reliable surface roughness characterization technique for Electrical Discharge Machined surfaces. A CMOS camera fitted with zoom 6000 lens system having optical magnification up to 45X and red LED light source were used for capturing images of machined surfaces with different surface roughness values. A signal vector can be generated from image pixel intensity and can be processed using MATLAB software. From the signal vector, the mean and the standard deviations were obtained. The mean of the images signal vector correlates well with the stylus measured roughness parameters…

LED Signal and Marking Lighting Devices

Signaling and Marking Devices Stds Comm
  • Ground Vehicle Standard
  • J1889_201907
  • Current
Published 2019-07-01 by SAE International in United States
This SAE Recommended Practice applies to functions of motor vehicle signaling and marking lighting devices which use light emitting diodes (LEDs) as light sources. This report provides test methods, requirements, and guidelines applicable to the special characteristics of LED lighting devices. This Recommended Practice is in addition to those required for devices designed with incandescent light sources. This report is intended to be a guide to standard practice and is subject to change to reflect additional experience and technical advances.
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3D Printing of Flexible Circuits

  • Magazine Article
  • TBMG-34746
Published 2019-07-01 by Tech Briefs Media Group in United States

A process was developed for 3D printing that can be used to produce transparent and mechanically flexible electronic circuits. The electronics consist of a mesh of silver nanowires that can be printed in suspension and embedded in various flexible and transparent plastics (polymers). This technology can enable new applications such as printable light-emitting diodes, solar cells, or tools with integrated circuits. The approach integrates electronics into existing structural units and improves components in terms of space and weight.


Stretchable Interlaced-Nanowire Film for Ultraviolet Photodetectors with High Response Speed

  • Magazine Article
  • TBMG-34588
Published 2019-06-01 by Tech Briefs Media Group in United States

Stretchable electronics, which can be stretched, deformed and wrapped onto nonplanar curved surfaces, have attracted much attraction due to their potential applications in wearable electronics, implantable biomedical devices, and artificial electronic skin. So far, many types of stretchable electronic devices have been developed including stretchable transistors, light-emitting diodes (LEDs), supercapacitors, photodetectors and sensors. Ultraviolet (UV) photodetectors have wide applications in crime investigation, biological analysis, fire monitoring, UV irradiation detection and many other applications as well.


Running an LED in Reverse Could Cool Future Computers

  • Magazine Article
  • TBMG-34635
Published 2019-06-01 by Tech Briefs Media Group in United States

Researchers devised a method in which running a light emitting diode (LED) with electrodes reversed was able to cool another device nanometers away. They harnessed the chemical potential of thermal radiation — a concept more commonly used to explain how a battery works.


Force-Sensitive Innovations: Addressing Cerebral Palsy Challenges with Electronic Medical Training Devices

  • Magazine Article
  • TBMG-34559
Published 2019-06-01 by Tech Briefs Media Group in United States

Nine years ago, Julian Gunderson was born three months prematurely and weighed just 1 kg (2.2 lb). After a year's worth of injections, medications, transfusions, and other treatments, doctors diagnosed Julian with cerebral palsy.


Lighting the Gas Monkey Garage

  • Magazine Article
  • TBMG-34423
Published 2019-05-01 by Tech Briefs Media Group in United States

Gas Monkey Garage (GMG) is arguably America's most recognized hot rod shop. Founded in 2004 by charismatic serial entrepreneur Richard Rawlings, the Dallas, Texas garage is a state-of-the-art restoration and fabrication operation, well-known for turning out stunningly restored, show-stopping rare cars and hot rod creations, all under the watchful eye of millions of TV viewers each week.


LED Lighting Improves Efficiency and Imaging

  • Magazine Article
  • TBMG-34397
Published 2019-05-01 by Tech Briefs Media Group in United States

Rocket engine testing requires a lot of light since all tests are filmed with high-speed cameras to monitor performance; however, those cameras have to adjust to the bright plume from a firing engine, which would black out the rest of the image. Traditionally, that light has been provided by metal halide bulbs.