Ultrasonic Distance Indicator On Lcd Display Using HC-SR04 8051 Based
If u want to measuring
a distance usually we are using measuring tape or another tools but this kind
of tools having limitations and manuals error and there are many places like in
vehicles where we need to detect a particular distance to prevent from any accident.
There areseveral ways to measure distance without human contact like infrared
ray, radar, laser but they are very expensive, hence the ultrasound waves can
be used for applications in industries/vehicles without hindering human activity
So here we introduce Ultrasonic
distance indicating system which detects
any object ahead of the ultrasonic transducer by using an emitter for sending
40 kHz sound wave; and a detector that detects this 40 kHz sound wave and sends
the signal back to the microcontroller. Which use in reverse car parking to
avoid damage of car
Block
diagram:-
In the system we used ultrasonic
sensors to measure sensors byusing pulse echo and phase measurement method and an ultrasonic module is interfaced to
the microcontroller, and an ultrasonic transducer comprising of a transmitter
and receiver and it will transmitted the
waves.
If any object is comes under the
range that we are set to the transducer then the transmitted waves are
reflected back from the object and received by the transducer. And then it will
gives the warning with help of buzzer and LED lights to indicate that the
distance is to close and help to prevent the vehicles to meet with accident and
will be display on LCD.
Hardware
specification:-
·
8051 series microcontroller
·
ultrasonic
transducer
·
LCD
·
LED
·
Buzzer
·
Power supply
Software specification:-
- MC Programming Language: embedded C
- Keil version IDE
- Proteus For Circuit & PCB Design
