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More than 1 million people die from traffic accidents each year around the world, which has arose public concerns to the vehicle safety. This paper examines improvement plan on the existent system of avoiding automobile rear-end collision. Based on the distance measurement millimeter-wave radar, the paper make predictions about relative distance and speed of the vehicle and the external substrate...
Vehicle positioning and environment awareness are key components in new intelligent transportation systems (ITS) which explains the growing demand in distance sensors. Though several efficient technologies already exist, the growing automation of vehicle requires sensors redundancy. In this paper, we introduce a new, simple and low cost distance measurement scheme using the headlamps and taillights...
Vehicles in the near future will be equipped with dedicated short-range communications (DSRC) transceiver which holds great promise of significantly reducing vehicle collisions by enabling vehicle-to-vehicle (V2V) and vehicle-to-infrastructure (V2I) communications. In addition, modern vehicles will be equipped with different on-board sensors such as GPS receivers and ranging sensors (e.g., cameras,...
In today's Intelligent Transportation Systems (ITS) accurate positioning information plays an increasing role. The automated registration and counting of passengers in public transportation and ticketing systems are based on the localization of passengers. Techniques leant on wireless sensor networks (WSNs) are an increasingly popular approach for estimating positions in a wide area of applications...
The capability of automated vehicles with intelligent on-board systems aimed at improving traffic safety has been in constant advance. This paper proposes an integrated module of lane and vehicle detection for a forward collision warning system that can be embedded in an autonomous driving system operating in real time. Integration of lane and vehicle detection provides more precise information for...
Vehicular localization plays an important role to enable safety and traffic flow control in intelligent transportation systems (ITS). Global positioning system (GPS) is generally used to localize a vehicle, but it is challenging to obtain the accurate location when the GPS signal is blocked from the satellites or corrupted by the multipath propagation. In this work, we present a GPS-less localization...
This article is presented based on Zigbee technology node design and algorithm of vehicle tracking localization of research, the low rate of using the Zigbee technology, the characteristics of low power consumption, low price, studies the algorithm of vehicle orbit. In this paper, the DV - Hop algorithm is based on distance vector routing distributed localization algorithm is put forward. The algorithm...
5G assisted driving applications demand the provision of centimetre-accurate positioning. Automated vehicles typically use several positioning systems, such as radars, cameras and sensors, in addition to Global Navigation Satellite Systems (GNSS). This is necessary to ensure integrity and reliability, as well as precise positioning. The deployment of 5G cellular networks along roads are envisaged...
In this paper, the positioning system that uses a direct sequence spread spectrum (DS/SS) inter-vehicle communication (IVC) scheme based on location oriented pseudo noise (PN) code allocation is studied. Although this DS/SS-IVC scheme can avoid the impact of hidden terminals, it has a problem. Since each vehicle obtains PN code based on the position that is estimated by GPS, communication performance...
This system is designed using modular method to design and program. The program is mainly composed of the system main program and interrupt program. The main program is to complete the MCU initialization, transmitting and receiving ultrasonic ultrasonic emission calculation between point and the distance to the obstacle. The digital tube display a buzzer alarm and start executing mechanism. The system...
In this paper, the positioning system using a direct sequence spread spectrum (DS/SS) inter-vehicle communication (IVC) scheme based on location oriented pseudo noise (PN) code allocation is considered. DS/SS-IVC scheme based on location oriented PN code allocation has a superiority in terms of that the interference of hidden terminal can mitigate. In this scheme, each vehicle determine the PN code...
In autonomous vehicles, driving in traffic poses significant challenges in vehicle-to-vehicle (V2V) communication and ranging. Currently interest centers on enhanced V2V communication with multi-sensor and cooperative approaches. In this paper we propose a novel bidirectional Laser Radar Visible Light Bidirectional Communication Boomerang System (LRVLB-ComBo). LRVLB-ComBo affords nuanced real-time...
Location-Based Services (LBS) and Intelligent Transportation Systems (ITS) demand positioning accuracy and availability requirements. In urban canyons, Global Navigation Satellite Systems (GNSS) suffer from signal blockage, jamming , severe multipath and low Carrier-to-Noise (C/No) ratio which degrade location accuracy and availability. Therefore, applications solely relying on GNSS have limited performance...
We consider the problem of precise range estimation between pairs of moving vehicles using periodic broadcast messages. The vehicles are not time synchronized and one needs to explicitly account for the clock offset and clock drift in addition to the vehicle motion to obtain accurate range estimates. We develop a broadcast range estimation algorithm based on local polynomial smoothing of the vehicle...
Light detection and ranging (LIDAR) scanners are essential components of intelligent vehicles capable of autonomous travel. Obstacle detection functions of autonomous vehicles require very low failure rates. With the increasing number of autonomous vehicles equipped with LIDAR scanners to detect and avoid obstacles and navigate safely through the environment, the probability of mutual interference...
Advanced Driver Assistance Systems (ADAS) refer to the set of smart components such as object detection and tracking systems used to protect drivers and road users. An important task that should be performed by ADAS is the measurement of the distance between a vehicle and a detected object. This helps to anticipate the position of objects in the lane, prevents collisions and improves the safety on...
Localization methods play an increasing role in many of today's Intelligent Transportation Systems (ITS). In the context of this work we concentrate on improving the localization accuracy of passengers in public transport vehicles, e.g. as part of automated registration, counting or ticketing systems. In these applications each passenger's ticket could be designed as a mobile wireless sensor node,...
With the global economic development and the amount of cars increased year by year, various problems in traffic management has become increasingly prominent, and the vehicle overrun is one of the main reasons causing vehicle traffic accidents on the highway. A new scheme for vehicle three-dimensional size detection based on laser ranging is proposed in this paper, and a detection system is developed...
This paper presents some key components of a semi-autonomous parking assist system designed for a passenger car without any automatic gear. Four subsystems are detailed: the state estimation, the map construction, the path planning and the tracking controller modules. The tasks of these systems are addressed in this work, and the main steps of their algorithms are described. This parking assist system...
An increasing number of safety features are being added to various engineering designs and processes of today and they have become the most important consideration in every design. Construction is a high-risk industry, hence the need for such systems is more pronounced. The cost of repairing damaged parts is significant due to the expensive price of construction machinery and related equipment. Based...
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