PDF FABRICATION OF MICROCONTROLLER BASED SPEED DETECTION AND Circuit Diagram
PDF FABRICATION OF MICROCONTROLLER BASED SPEED DETECTION AND Circuit Diagram the calculated speed is compared with the limit ed speed. When the calcu lated speed is greater than limited speed, it alarms on, LED 3 blinks and LCD displays the vehicle' s spee d. The co nstructed model of the microcontroller based automobile speed limi ting device a nd a larm control system is presented in Figure 9. Figure 9 shows the various external features of the show the simulation results for the case where the car speed is less than the set speed limit and another where the car speed is greater than the set speed limit, respectively. Table 1 shows the three possible conditions of the set speed switches and the outputs of the microcontroller. Upon successful completion of the software simulation,
speed, if the driver doesn't respond to it. The microcontroller is used to control the speed of the vehicle according to zones [3]. Embedded Based Vehicle Speed Control System Using Wireless Technology proposed a system that has an alerting, recording, and reporting feature for over-speed violation management. Speed = Distance between Two IR sensors / Time taken by the object to travel between two IR sensors. For example, if the distance between the two IR sensors is 1 meter and the object takes 0.5 seconds to travel between them, then the speed would be. Speed = 1 meter / 0.4 seconds => 2.5 m/s. Arduino Code for Speed Sensor If the system was at lower speed than the limit received from the sign post than there will be no changes made to the speed of the system. However, if the speed of the vehicle was manually incremented to a higher value, then the controller will impose the speed restriction and bring back the speed value to the value specified by the limit.
Development of a Microcontroller Based Car Speed Controller Circuit Diagram
microcontroller processes this frame and imposes the speed limit on automobile. In order to implement this design in full fledge a separate microcontroller is very essential to handle the tasks like displaying maximum (MAX) speed allowed and other necessary information on Liquid Crystal Display (LCD), Enokela and Agbo [27] developed a microcontroller based car speed controller for automatic control of vehicle's speed within limit stipulated for a particular zone by a regulating xiv This thesis presents design and implementation of the vehicle speed sensor using MAW sensor in a vehicle, circuits for signal processing and speed governor control unit. A microcontroller based algorithm for the speed governor based on PWM duty cycle was also developed and experiments conducted through simulation and actual experiments.
