Fuzzy Controller based Pothole Detection System Savni Ankalikar 1 Tania Bhatia 1 Shreya Chowdhary 1 M.Mani Roja 2 1 Students, Electronics and Telecommunication Department 2 Associate Professor, Electronics and Telecommunication Department 1,2 Thadomal Shahani Engineering College E-mail:[email protected]Abstract Potholes are encountered frequently on roads and highways which experience wear due to constant vehicular traffic and weather conditions. These potholes are a top cause for the increasing number of accidents which may be fatal. In order to provide a solution to this problem, this paper proposes the design of the Pothole Detection System which senses the potholes and assists the driver to avoid them using Fuzzy Logic Controller. The system will detect potholes at a distance with the help of a camera mounted on the car. The controller will then inform the system about the braking power to be used. This will help to avoid accidents due to unexpected hurdles (potholes). 1. Introduction The worsening conditions of the roads are a major concern of the road development authorities. The increasing number of accidents has raised an alarm among the authorities. Majority of the road mishaps are triggered by potholes. Even the potholes that seem to be small can cause damage and put strain on the car’s suspension. They may cause buckled wheels, wastage of fuel and wear and tear of the vehicle. When a vehicle goes over a big pothole, the vehicle may not be able to handle the blow. This unexpected impact causes the driver to lose control on the vehicle causing car accidents which may be fatal. In order to avoid such incidents, data needs to be collected, analyzed and processed related to the road conditions which will alert the driver and help avoid any damage and mishaps. 2. Proposed System A fuzzy logic controller [1-3] can be used for this purpose. In this system, the size of the pothole and the speed of the vehicle are considered as the parameters in deciding the braking power needed to avoid the impact of the pothole. For gathering the information, a high resolution camera is mounted on the front end of a car which will capture images of the road. The captured images will be used to measure the perpendicular diameters of the potholes and the pothole size can thus be calculated. This pothole size will then be compared to a reference threshold pothole size. Based on the captured images and the speed of the vehicle, the system generates an alert for the driver. Depending on this information the braking power is decided to avoid the impact of the potholes and hence accidents. 2.1 Fuzzy Logic Controller Fuzzy logic controller [1-3] uses fuzzy logic and fuzzy set theory. Fuzzy sets have values between 0 and 1 both inclusive whereas crisp sets have only two values 0 and 1. Fuzzification is a process which converts crisp values into fuzzy values. Defuzzification is the inverse process. The fuzzy controller has five main units: Fuzzifier, Fuzzy Rule Base, Fuzzy Knowledge Base, Inference Engine (Decision making unit) and Defuzzifier. The decision making unit is the kernel of fuzzy logic controller. The rule base stores the knowledge about the operation. The knowledge base has the membership values of the input fuzzy sets. Figure 1. Block diagram of Fuzzy Inference System. Tania Bhatia et al, Int.J.Computer Technology & Applications,Vol 5 (5),1763-1767 IJCTA | Sept-Oct 2014 Available [email protected]1763 ISSN:2229-6093
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Fuzzy Controller based Pothole Detection System
Savni Ankalikar
1Tania Bhatia
1Shreya Chowdhary
1M.Mani Roja
2
1Students, Electronics and Telecommunication Department
2Associate Professor, Electronics and Telecommunication Department