On-Road Dynamic Pattern Projection Using an Active Mirror for Vehicle Warning Systems

Donghee Han; Seung Soo Kwak; Jisoo Park; Yongwook Kwon; Yong Sin Kim

doi:10.1109/TVT.2020.2980569

On-Road Dynamic Pattern Projection Using an Active Mirror for Vehicle Warning Systems

Donghee Han, Seung Soo Kwak, Jisoo Park, Yongwook Kwon, Yong Sin Kim

Research output: Contribution to journal › Article › peer-review

1 Citation (Scopus)

Abstract

Recently, the demand for vehicle warning systems to avoid collisions between vehicles and pedestrians has been increasingly growing. For the implementation of such systems, three types of vehicle-to-pedestrian (V2P) technologies are widely adopted. In the first, vehicles communicate with pedestrians via smart devices using dedicated short-range communications (DSRC), but it is neither simply intuitive nor fast responsive. In the second, vehicles generate a noise in order to help pedestrians avoid collisions, at the expense of disturbing others with unwelcome noise. In the last, an on-road short-range projection technique visually informs pedestrians that a vehicle is approaching, which can be more intuitive and responsive. However, the two main drawbacks of conventional on-road projections are that they involve a static pattern and narrow emission angle. This paper proposes an on-road dynamic pattern projection technique for grabbing more attention from pedestrians with various dynamic patterns and covering a wide emission angle using an active mirror. Theoretical analysis shows that the on-road projection pattern and its angle can easily be controlled by adjusting the switching frequency, duty-cycle, and amount of current flow in the control circuitry. The simulation and experimental results validate that various patterns can be projected within a projection angle of ±70° at a power consumption less than 0.98W.

Original language	English
Article number	9035461
Pages (from-to)	4947-4956
Number of pages	10
Journal	IEEE Transactions on Vehicular Technology
Volume	69
Issue number	5
DOIs	https://doi.org/10.1109/TVT.2020.2980569
Publication status	Published - 2020 May

Bibliographical note

Funding Information:
Manuscript received June 23, 2019; revised January 18, 2020; accepted February 18, 2020. Date of publication March 13, 2020; date of current version May 14, 2020. This work was supported in part by Hyundai Motors Corp. and in part by the Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education (NRF-2016R1D1A1B04935233) The review of this article was coordinated by Dr. Z. Liu. (Corresponding author: Yong Sin Kim.) Donghee Han, Seung Soo Kwak, and Yong Sin Kim are with the School of Electrical Engineering, Korea University, Seoul 02841, South Korea (e-mail: [email protected]; [email protected]; [email protected]).

Publisher Copyright:
© 2020 IEEE.

Keywords

Vehicle warning
active mirror
dynamic pattern
on-road projection
vehicle-to-pedestrian (V2P)

ASJC Scopus subject areas

Automotive Engineering
Aerospace Engineering
Electrical and Electronic Engineering
Applied Mathematics

Access to Document

10.1109/TVT.2020.2980569

Cite this

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title = "On-Road Dynamic Pattern Projection Using an Active Mirror for Vehicle Warning Systems",

abstract = "Recently, the demand for vehicle warning systems to avoid collisions between vehicles and pedestrians has been increasingly growing. For the implementation of such systems, three types of vehicle-to-pedestrian (V2P) technologies are widely adopted. In the first, vehicles communicate with pedestrians via smart devices using dedicated short-range communications (DSRC), but it is neither simply intuitive nor fast responsive. In the second, vehicles generate a noise in order to help pedestrians avoid collisions, at the expense of disturbing others with unwelcome noise. In the last, an on-road short-range projection technique visually informs pedestrians that a vehicle is approaching, which can be more intuitive and responsive. However, the two main drawbacks of conventional on-road projections are that they involve a static pattern and narrow emission angle. This paper proposes an on-road dynamic pattern projection technique for grabbing more attention from pedestrians with various dynamic patterns and covering a wide emission angle using an active mirror. Theoretical analysis shows that the on-road projection pattern and its angle can easily be controlled by adjusting the switching frequency, duty-cycle, and amount of current flow in the control circuitry. The simulation and experimental results validate that various patterns can be projected within a projection angle of ±70° at a power consumption less than 0.98W.",

keywords = "Vehicle warning, active mirror, dynamic pattern, on-road projection, vehicle-to-pedestrian (V2P)",

author = "Donghee Han and Kwak, {Seung Soo} and Jisoo Park and Yongwook Kwon and Kim, {Yong Sin}",

note = "Funding Information: Manuscript received June 23, 2019; revised January 18, 2020; accepted February 18, 2020. Date of publication March 13, 2020; date of current version May 14, 2020. This work was supported in part by Hyundai Motors Corp. and in part by the Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education (NRF-2016R1D1A1B04935233) The review of this article was coordinated by Dr. Z. Liu. (Corresponding author: Yong Sin Kim.) Donghee Han, Seung Soo Kwak, and Yong Sin Kim are with the School of Electrical Engineering, Korea University, Seoul 02841, South Korea (e-mail: [email protected]; [email protected]; [email protected]). Publisher Copyright: {\textcopyright} 2020 IEEE.",

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N2 - Recently, the demand for vehicle warning systems to avoid collisions between vehicles and pedestrians has been increasingly growing. For the implementation of such systems, three types of vehicle-to-pedestrian (V2P) technologies are widely adopted. In the first, vehicles communicate with pedestrians via smart devices using dedicated short-range communications (DSRC), but it is neither simply intuitive nor fast responsive. In the second, vehicles generate a noise in order to help pedestrians avoid collisions, at the expense of disturbing others with unwelcome noise. In the last, an on-road short-range projection technique visually informs pedestrians that a vehicle is approaching, which can be more intuitive and responsive. However, the two main drawbacks of conventional on-road projections are that they involve a static pattern and narrow emission angle. This paper proposes an on-road dynamic pattern projection technique for grabbing more attention from pedestrians with various dynamic patterns and covering a wide emission angle using an active mirror. Theoretical analysis shows that the on-road projection pattern and its angle can easily be controlled by adjusting the switching frequency, duty-cycle, and amount of current flow in the control circuitry. The simulation and experimental results validate that various patterns can be projected within a projection angle of ±70° at a power consumption less than 0.98W.

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On-Road Dynamic Pattern Projection Using an Active Mirror for Vehicle Warning Systems

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

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