Distance measurement using Ultrasonic sensors (original) (raw)
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Cars and vehicles have been incorporated into culture as one of the most resourceful, easiest and accessible means of transportation available. But besides being a suitable and common means, it is equally an incredibly dangerous mode of transport. Thousands of people die in vehicle accidents each year, whether it is accident with another vehicle or with a motionless object. A method of early accident exposure and evasion can control several accidents that may be associated to factors such as loss of control, careless driving, tired/intoxicated drivers, and not paying concentration to the road. As the current market does not present a normal safety feature in any car, the use of sensory tools to sense potentially hazardous objects a definite distance away and either slows the car down or shove to a safer path has not been released. In this research paper a new technique is introduced for safety against accidents. Eight ultrasonic sensors are used to sense different types of objects. By implementing a possible improvement in safety/sanctuary systems in vehicles, the vehicle and sensor would be able to operate normally until the sensor detects possible risk. In our project, the sensor does not give output or signal until the car comes within ~75 feet of an object, at which timer sends information of hurdle to driver. The sensor only indicates the presence of an object; it is up to the user or driver to tackle the hurdle. GJRE-B Classification: FOR Code: 090299 Distance Measuring Hurdle detection Systemfor Safe Environment in Vehicles through Ultrasonic Rays Strictly as per the compliance and regulations of:
Accident Prevention System Using Ultrasonic Sound Sensors
Road accidents often happen when vehicles come very close and the drivers sleep or not aware of the vehicles coming close. This may happen while in traffic or when driving with high speed and cross each other on road. This paper presents a method using ultrasonic sound sensor technology that will recognize and display messages about the vehicles that approach the vehicle on all four sides within two meters range and alert the driver. Thus while the driver is alerted about the vehicles that come very close in his vicinity, accidents can be better avoided.
An ultrasonic sensor distance induced automatic braking automobile collision avoidance system
2017 IEEE 3rd International Conference on Electro-Technology for National Development (NIGERCON)
Collisions in automobiles have become a major safety concern; cases of damage and death due to automobile collisions are frequently reported. The number of pedestrians knocked to death by automobiles is also on the rise in cities and highways. Further into the game reserves, wild animals are also frequently knocked to death by automobiles. The cost of a life cannot be estimated, the cost of damages to the automobiles also impacts negatively on investment. In most cases drivers fail to notice the presence of obstacles ahead and brakes need a driver's response to operate thus increasing the response time, hence reducing their reliability. Many approaches to automobile crash avoidance systems have been proposed in recent time, however, such approaches mainly concentrate on steering maneuvering control. In addition, these approaches do not take into consideration the safety distance to stoppage of the automobile, more so, many approaches only provide a warning signal to the driver for activating the automatic braking. This always provides a room for human error. This paper presents the development of an automatic microcontroller based crash avoidance system that employs obstacle detection and distance measurement using ultrasonic sensors to detect obstacles and their distances. Once the obstacle has been detected and safe separation distance is reached, the automobile performs safety distance induced braking at that distance to bring the automobile to a stoppage. From the results obtained after tests, the system has an average response time of 0.86s to the activation of the brakes and a 12.8 percentage error with respect to the obstacle real distance.
Ultrasonic Vehicle Safety System for Obstacle Avoidance
— In this paper we deal with the obstacle avoidance system for automated wheel chair used by the disabled persons. Our project aims at building virtual instrument that makes the vehicle to apply brake system automatically, when there is any obstacle in front of the vehicle. It is detected and sensed by the ultrasonic sensor and its gives the output voltage to MYRIO. It is myRIO which interface the LabVIEW and the pc. LabVIEW (Laboratory virtual instrument engineering work bench) is a graphical programming language that uses an icon instead of lines of text to create an application. The LabVIEW programs can be fetched over myRIO & can be operated through Wi-Fi.
Ultrasonic Sensors in Urban Traffic Driving-Aid Systems
Sensors, 2011
Currently, vehicles are often equipped with active safety systems to reduce the risk of accidents, most of which occur in urban environments. The most prominent include Antilock Braking Systems (ABS), Traction Control and Stability Control. All these systems use different kinds of sensors to constantly monitor the conditions of the vehicle, and act in an emergency. In this paper the use of ultrasonic sensors in active safety systems for urban traffic is proposed, and the advantages and disadvantages when compared to other sensors are discussed. Adaptive Cruise Control (ACC) for urban traffic based on ultrasounds is presented as an application example. The proposed system has been implemented in a fully-automated prototype vehicle and has been tested under real traffic conditions. The results confirm the good performance of ultrasonic sensors in these systems.
Obstacle Detection using Ultrasonic Sensors
In many applications like vehicle control, medical applications, robotic movement control, etc.; distance measurement of an object is used. This can be done using a variety of sensors-Ultrasonic, IR, radar, laser, etc. Measurement using ultrasonic sensors is the cheapest and its reliability among several others is very high. In this paper we discuss the uses of these sensors in distance measurement in vehicular applications and compare them for a small automobile prototype using Raspberry Pi, to provide an output for obstacle detection.
Construction of a Device for Obstacle Detection
International Journal of Recent Technology and Engineering (IJRTE), 2019
Road accidents are pervasive and prove to be fatal. The presented paper deals with the construction and working of a device for obstacle detection. Obstacle detection is a mechanism used for the identification of any obstruction that may hinder the way of the vehicle. It can improve mobility as well as the safety of people who drive on roads. The proposed system automatically turns left or right on detecting obstacles using ultrasonic sensors & an Arduino. The primary focus is to make the vehicle secure and to ensure the safety of the driver. The project initiated based on a case study done by gathering information from community partners and bus drivers of Chitkara University, Punjab, India.
AUTO CRASH AUTOMOBILE EVASION SYSTEM - FULL PROJECT
This project Implements’ an intelligent microcontroller based Crash evasion system that will employ obstacle detection and distance measurement using ultrasonic sensors to detect obstacles and their distances. Once the obstacle has been detected and safe separation distance is not provided, the automobile will perform safety braking and further decrease in separation distance will cause the system to initiate teering control so as to reduce the severity of the collision. A warning signal is provided to the driver to alert them before he system takes automobile steering into control. Hazard lights are turned ON the moment a collision is detected and rake lights are turned ON after activation of the brake assist system and the brakes which are preferably ABS. Dash board displays of LEDs are incorporated to make the system more nteractive. The system provides for manual control by the driver when they find need to operate the automobile without it as in case of parking and testing or driving in arrow confined paths.
Shortcomings of Ultrasonic Obstacle Detection for Vehicle Driver Assistance and Profiling
International Journal of Information Technology and Computer Science
Obstacle detection is a challenging problem that has attracted much attention recently, especially in the context of research in self-driving car technologies. A number of obstacle detection technologies exist. Ultrasound is among the commonly used technologies due to its low cost compared to other technologies. This paper presents some findings on the research that has been carried out by the authors with regard to vehicle driver assistance and profiling. It discusses an experiment for detection of obstacles in a vehicle driver's operational environment using ultrasound technology. Experiment results clearly depict the capabilities and limitations of ultrasound technology in detection of obstacles under motion and obstacles with varied surfaces. Ultrasound's wavelength, beam width, directionality among others are put into consideration. Pros and cons of other technologies that could replace ultrasound, for instance RADAR and LIDAR technologies are also discussed. The study recommends sensor fusion where several types of sensor technologies are combined to complement one another. The study was a technical test of configurable technology that could guide future studies on obstacle detection intending to use infrared, sound, radio or laser technologies particularly when both the sensor and obstacle are in motion and when obstacles have differing unpredictable surface properties.
Design and Implementation of an Arduino-Based Accident Prevention System
IRJET, 2022
Road accidents are uncertain but whenever they occur causes damage, serious injuries and sometimes even death. These accidents are mostly caused due to delay of driver in hitting the brakes. Presently we are at the phase of effectively keeping away from mishaps as well as giving greatest security to the vehicle tenants and people on foot. Accidents occur due to three main reasons: first is front end collision that happens due to lack of knowledge of distance between two vehicles. Secondly due to engine overheating that may lead to fire in vehicle and thirdly due to over speeding. In this paper, the proposed system has an ultrasonic sensor for collision avoidance. Vehicle overheating may happen due to many reasons and one of the normal reasons is failure of cooling fan. Mostly, vehicle driver is ignorant about cooling fan malfunction and when malfunctioning is determined, it might be too delayed and cost a lot to fix the damage. Heat produced by engine need to be dissipated otherwise engine might be seriously damaged. With the help of the proposed system, vehicle driver is timely informed about cooling fan failure through an indicator that will illuminate with beep sound. In addition, to intimate driver about over speeding this system sends an alert message with beep sound.