The product we are developing is pretty much like a radar, since the principle of operation is based on this earlier application which has been utilized in an enormous wide range. However, while radar uses microwaves, our design uses ultrasonic sound, which is a sound with a frequency above normal hearing.
Like all the other commercially availble products in the same functional category, our design provides an accurate detection of any object by the sensor with 5 metres range.It displays an accurate distance measurement between the target and the detector in tenth of metres precision, hence giving a clear idea how much further your car should go forward or back before causing any accident. This is especially useful when parking the car in a fully occupied site or when driving in metropolitan's crowded traffic zone. The product is very portable and stylish that you'd surly love to gear it up on the rear of your car to make a cool impression while keeping your car out of trouble.
The prototype consists of three function blocks: (1) A transducer which transmits the ultrasonic sound wave and receives the echo; (2) An F1 Board which is the backbone of the circuit, operating under the control of assembly codes to read the reflection time, calculate the distance, and output the result; (3) 7-Segment-Display-LEDs which is a single chip that displays the readings it receives from the F1 Board. The detail of the priciples of operation of our prototype is demonstrated on the Design page. Also please see the FBD (function block diagram) of the circuit for more information.
Communication
Engineering 2nd. year undergraduates:
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