VLC-Based Car-to-Car Communication

Based on data from the Indonesian Traffic Corps by September 2019, the number of car accidents was dominated by rear-hit crashes with 6,966 accidents. Most of these accidents occurred during car convoys. It needs a car-to-car communication to increase driver awareness. One of the technologies that can be applied is Visible Light Communication (VLC) and infrared communication. The transmitted data are the vehicle speed data, throttle position, and brake stepping indicator. The data are obtained by reading the Engine Control Unit (ECU) in the car. The data are packaged from the three data and sent to other cars at day and night using VLC and infrared communication. The experimental results show that in a communication system that uses VLC, data can be exchanged between cars during the day up to 2 meters and at night up to 11 meters. Otherwise, in infrared communication, vehicles can communicate during the day up to 2 meters and at night up to 0.7 meter. The test was also carried out with some conditions such as rain, smoke, passers, and other vehicle lights.

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An LED-based visible light communication system for multicast

Indonesian Journal of Electrical Engineering and Computer Science ◽

10.11591/ijeecs.v13.i1.pp265-271 ◽

2019 ◽

Vol 13 (1) ◽

pp. 265

Author(s):

Jong-Sung Lee ◽

Dae-Hee Lee ◽

Sung-Jin Kim ◽

Chang-Heon Oh

Keyword(s):

Internet Of Things ◽

Visible Light ◽

Data Transmission ◽

Communication System ◽

High Speed ◽

Visible Light Communication ◽

Experimental Results ◽

Light Sources ◽

Broadcast Communication ◽

Communication Method

<p>Visible Light Communication is a communication method that transmits data through light by pulsing an LED at high speed, performing broadcast communication for all devices existing in its coverage. Broadcast-based Visible Light Communication is limited to application to Internet of Things services, where various applications exist, although all receivers can communicate within the range of light sources. Therefore, this paper proposes an LED based Visible Light Communication system for multicast. The proposed system performs individual multicast by participating in communication only with receivers configured to use a specified ID value input at the transmitting side during data transmission. Experimental results show that the receiver can receive files individually according to a specified ID value.</p>

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Experimental Study on Engine Control Strategy during Gear Shifting for Vehicles Equipped with Automated Mechanical Transmission

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.52-54.1199 ◽

2011 ◽

Vol 52-54 ◽

pp. 1199-1205

Author(s):

Guo Qiang Wan ◽

Ying Huang ◽

Fu Jun Zhang ◽

Tao Cui

Keyword(s):

Experimental Study ◽

Control Strategy ◽

Can Bus ◽

Control Unit ◽

Experimental Results ◽

Mechanical Transmission ◽

Area Network ◽

Vehicle Speed ◽

Engine Control ◽

Time Operation

This paper presents an experimental study on engine control strategy during gear shifting for a Unimog U4000 equipped with an automated mechanical transmission (AMT) based on the controller area network (CAN) bus. First, an integrated powertrain control system based on the CAN bus is introduced. Second, the ideal AMT gear shifting process is described, and the engine control strategy during gear shifting is proposed. Then, the communication information for the engine control unit (ECU) and transmission control unit (TCU) during gear shifting is determined based on the SAE J1939 protocol. Finally, effectiveness is verified by the experimental results. The experimental results show that: engine control during gear shifting based on the CAN bus can meet the requirement for real-time operation; the engine control strategy presented in this paper during gear shifting can achieve good shift quality with shorter shifting time and less vehicle speed loss.

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