scholarly journals The Design of Intelligent Speech Walking Stick Based on GPS

2018 ◽  
Vol 227 ◽  
pp. 02021
Author(s):  
Yuge Wang ◽  
Ling Long
Keyword(s):  
Real Time ◽  
Obstacle Avoidance ◽  
Science And Technology ◽  
The Real ◽  
The Road ◽  
Navigation Function ◽  
Emergency Assistance ◽  
On The Road ◽  
Walking Stick

With the development of society and the progress of science and technology, the traditional walking stick has been unable to meet the needs of modern walking stick users. Based on this, we developed the intelligent speech navigation walking stick design based on GPS and GSM, supplemented by the functions of ultrasonic obstacle avoidance, night warning and emergency assistance. This walking stick can help the blind walk on the road independently. Moreover, when the user cannot distinguish the road information, the walking stick can realize the real-time voice navigation function in the region, so as to solve the problem that the user cannot independently find the road information.

scholarly journals Automatic Detection and Classification of Road, Car, and Pedestrian Using Binocular Cameras in Traffic Scenes with a Common Framework

Complexity ◽  
2020 ◽  
Vol 2020 ◽  
pp. 1-17
Author(s):  
Yongchao Song ◽  
Jieru Yao ◽  
Yongfeng Ju ◽  
Yahong Jiang ◽  
Kai Du
Keyword(s):  
Real Time ◽  
Pedestrian Detection ◽  
Minimum Energy ◽  
Automatic Detection ◽  
Initial Contour ◽  
Target Area ◽  
Threshold Method ◽  
The Real ◽  
The Road ◽  
On The Road

In order to solve the problems of traffic object detection, fuzzification, and simplification in real traffic environment, an automatic detection and classification algorithm for roads, vehicles, and pedestrians with multiple traffic objects under the same framework is proposed. We construct the final V view through a considerate U-V view method, which determines the location of the horizon and the initial contour of the road. Road detection results are obtained through error label reclassification, omitting point reassignment, and so an. We propose a peripheral envelope algorithm to determine sources of vehicles and pedestrians on the road. The initial segmentation results are determined by the regional growth of the source point through the minimum neighbor similarity algorithm. Vehicle detection results on the road are confirmed by combining disparity and color energy minimum algorithms with the object window aspect ratio threshold method. A method of multifeature fusion is presented to obtain the pedestrian target area, and the pedestrian detection results on the road are accurately segmented by combining the disparity neighbor similarity and the minimum energy algorithm. The algorithm is tested in three datasets of Enpeda, KITTI, and Daimler; then, the corresponding results prove the efficiency and accuracy of the proposed approach. Meanwhile, the real-time analysis of the algorithm is performed, and the average time efficiency is 13 pfs, which can realize the real-time performance of the detection process.

U.S.-Israeli Policies: Reading the Signs for '77

Worldview ◽  
1976 ◽  
Vol 19 (9) ◽  
pp. 4-9
Author(s):  
Mark A. Bruzonsky
Keyword(s):  
United States ◽  
Near East ◽  
The United States ◽  
Recent Issue ◽  
The Real ◽  
The Road ◽  
Democratic Candidate ◽  
On The Road ◽  
The U.S ◽  
Sense Of Urgency

The real crunch for Israel will probably come during 1977 if Ford is elected—it will be delayed by only a few months if a Democratic candidate wins.” So writes Wolf Blitzer, editor of the “Jewish lobby's” Washington publication Near East Report, in a recent issue of the Jerusalem Post.With the same sense of urgency Abba Eban insists that “Time is of the essence, and unhappily for us, time is running out. We ought to grasp the central issues now and involve the United States in resolving them.” He and a growing number of his colleagues fear that should Israel not choose to “cooperate” with the U.S., the Americans might run right over Israel on the road to Geneva and some form of imposed settlement.

Robotic System Used for Navigation and Tracking, in Real Time, with the Obstacle Avoidance

2014 ◽  
Vol 1077 ◽  
pp. 221-226
Author(s):  
Dan Popescu ◽  
Loretta Ichim ◽  
Radu Fratila ◽  
Diana Gornea
Keyword(s):  
Real Time ◽  
Obstacle Avoidance ◽  
Robotic System ◽  
Indoor Navigation ◽  
Object Localization ◽  
Mobile Platform ◽  
Mobile Object ◽  
Central Unit ◽  
The Road ◽  
Localization And Tracking

Tracking the road or a mobile object and also obstacle avoidance are very important components that must be considered in the process of developing a robotic system. In this paper we propose a mobile platform for indoor navigation, based on a cheap computing hardware, which is able to be configured in two scenarios: the first refers to the movement of the robot on a predetermined path and to avoidance the obstacles, while maintaining the final target, and the second refers to the possibility of identifying and tracking a target. The robotic system aggregates the information acquired from different sensors and combines the computing resources from the mobile platform with those from the central unit. MATLAB is used for all the implementations and tests, to develop algorithms and to create models and applications. The robot's communication with central unit is wireless. Experimental results show that the mobile platform is able to perform, in real time, the following tasks in indoor environment: the recognition of the object, localization and tracking and also the obstacles avoidance.

scholarly journals Towards a Real-Time Driver Workload Estimator: An On-the-Road Study

2016 ◽  
pp. 1151-1164
Author(s):  
Peter van Leeuwen ◽  
Renske Landman ◽  
Lejo Buning ◽  
Tobias Heffelaar ◽  
Jeroen Hogema ◽  
...  
Keyword(s):  
Real Time ◽  
The Road ◽  
Driver Workload ◽  
On The Road ◽  
Road Study

A Study of Real Area of Contact for Tire/Road Interface

2009 ◽  
Author(s):  
Jeremy J. Dawkins ◽  
Sameer G. Shah ◽  
Robert L. Jackson
Keyword(s):  
Rough Surface ◽  
The Real ◽  
The Road ◽  
Real Area Of Contact ◽  
Modeling Techniques ◽  
Contact Models ◽  
On The Road ◽  
Real Area ◽  
Rubber Block

This paper investigates some of the modeling techniques available for predicting the real area of contact between two surfaces. These models are then applied to an idealized case of a rubber block in contact with a rough surface representing a tire on the road. A description of how the models work is presented. The various contact models are compared and analyzed. Qualitatively the models compare very well. Several models also compare well quantitatively.

A Picture is Worth a Thousand Words: Share Your Real-Time View on the Road

2017 ◽  
Vol 66 (4) ◽  
pp. 2902-2914 ◽  
Author(s):  
Xiong Wang ◽  
Lei Ding ◽  
Qi Wang ◽  
Jin Xie ◽  
Tianyi Wang ◽  
...  
Keyword(s):  
Real Time ◽  
The Road ◽  
On The Road

Towards a new pricing structure for online databases

1985 ◽  
Vol 10 (3) ◽  
pp. 125-130 ◽  
Author(s):  
Arnold A.J. Jansen
Keyword(s):  
Real Time ◽  
Current System ◽  
Science And Technology ◽  
Sales Price ◽  
True Cost ◽  
The Real ◽  
Online Databases ◽  
Technology Market ◽  
Charging Mechanism ◽  
Time Required

The majority of database producers in the science and technology market charge for the use of their databases on the basis of time. Their users are billed according to the time they actually spend searching and printing the database online which has no reflection on the true cost of the information. The real-time charging mechanism was established, when 300 baud terminals were the standard. Today microcomputers and 1200 baud modems are becoming increasingly more important, sig nificantly reducing the time required online and thus the sales price of the search. The current system of pricing databases will be difficult to maintain in the future, as the trend towards improved hardware and sharer connect time increases. Chang ing the system, however, will be difficult. A typical database producer receives about 80 percent of online revenue from the sale of connect hours. To switch from time charges to an alternative such as unit charges will not be easy. The author analyses the problem and offers a number of possible scenarios.

Predictive Control of Autonomous Ground Vehicles With Obstacle Avoidance on Slippery Roads

2010 ◽  
Author(s):  
Yiqi Gao ◽  
Theresa Lin ◽  
Francesco Borrelli ◽  
Eric Tseng ◽  
Davor Hrovat
Keyword(s):  
Obstacle Avoidance ◽  
Predictive Control ◽  
Autonomous Vehicles ◽  
Ground Vehicles ◽  
Vehicle Model ◽  
The Road ◽  
On Line ◽  
Nonlinear Vehicle Model ◽  
On The Road ◽  
High Level

Two frameworks based on Model Predictive Control (MPC) for obstacle avoidance with autonomous vehicles are presented. A given trajectory represents the driver intent. An MPC has to safely avoid obstacles on the road while trying to track the desired trajectory by controlling front steering angle and differential braking. We present two different approaches to this problem. The first approach solves a single nonlinear MPC problem. The second approach uses a hierarchical scheme. At the high-level, a trajectory is computed on-line, in a receding horizon fashion, based on a simplified point-mass vehicle model in order to avoid an obstacle. At the low-level an MPC controller computes the vehicle inputs in order to best follow the high level trajectory based on a nonlinear vehicle model. This article presents the design and comparison of both approaches, the method for implementing them, and successful experimental results on icy roads.

scholarly journals An advanced planner for urban freight delivering

2018 ◽  
Vol 4 (48) ◽  
pp. 27-40 ◽  
Author(s):  
Antonio COMI ◽  
Berta BUTTARAZZI ◽  
Massimiliano SCHIRALDI ◽  
Rosy INNARELLA ◽  
Martina VARISCO ◽  
...  
Keyword(s):  
Real Time ◽  
Web Application ◽  
Road Network ◽  
Time Windows ◽  
Mobile App ◽  
Delivery Time ◽  
Time Data ◽  
Urban Freight ◽  
The Road ◽  
On The Road

The paper aims at introducing an advanced delivery tour planner to support operators in urban delivery operations through a combined approach which chooses delivery bays and delivery time windows while optimizing the delivery routes. After a literature review on tools for the management and the control of the delivery system implemented for optimizing the usage of on-street delivery bays, a prototypical tour delivery planner is described. The tool allows transport and logistics operators to book the delivery bays and to have real-time suggestions on the delivery tour to follow, through the minimization of the total delivery time. Currently, at development phase, the tool has been tested in a target zone, considering the road network and time/city delivering constraints and real-time data about vehicles location, traffic and delivery bay availability. The tool identifies the possible tours based on the delivery preferences, ranks the possible solutions according to the total route time based on information on the road network (i.e. travel time forecasts), performs a further optimization to reduce the total travel times and presents the user the best alternative along with the indications of which delivery bay to use in each delivery stop. The developed prototype is composed by two main parts: a web application that manages communication between the database and the road network simulation, and, an Android mobile App that supports transport and logistic operators in managing their delivering, pre trip and en route, showing and updating routing based on real-time information.

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