Distance Measurement Device Using Programmable Interface Controller

Eugene , Kuek Vee Chet (2012) Distance Measurement Device Using Programmable Interface Controller. Project Report. UTeM, Melaka, Malaysia. (Submitted)

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Abstract

This project describes the device that is able to measure the distance from the device to the object with the main objectives that is by using the ultrasonic technology. The system introduces the use of ultrasonic distance measuring system based on microcontroller PICJ 6F877 A. The system will establish communication between Ultrasonic Sensors, Temperature Sensor, LCD Display, and microcontroller. Ultrasonic sensors measure the distance in the sense that the direction of propagation as a sequence of echoes. The measurement is based on the time-of-flight of the reflected echoes. Then this sequence is converted to digital form and is evaluated and interpreted by the microcontroller. The device is able to measure distance within 0.05m to 3m in about ±3cm accuracy. With the temperature sensor, the accuracy of the distance measured is far improved as the temperature sensor can overcome the velocity of sound travelling in different temperature. The ranging value is then displayed through the LCD Display that shows the temperature degree as well. The system can also be used for various applications for distance measurement such as auto motives, civil, robotics and variety of applications depends on the use. Thus, one of the objectives is to build and develop the prototype of the distance measurement device. Finally, the project will be commercialized to industries that can make good use of it.

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