The document summarizes a technical seminar presentation on an ultrasonic radar system using a microcontroller. It describes the system architecture which includes a 8051 microcontroller, ultrasonic sensor, buzzer, and servo motor. It provides details on the implementation including interfacing these components and operating voltages. Advantages include ability to work in adverse conditions and high sensing distances. Applications discussed include target detection and traffic enforcement. The conclusion states the designed project can detect objects within 30cm and provide audio alerts.

1. presented by:
Yogeesh M
M. Tech/DCN
ID:1DA17LDN08
Technical Seminar
on
Ultrasonic RADAR Using Micro-controller.
Dr . AMBEDKAR INSTITUTE OF TECHNOLOGY
(An Autonomous Institution, Affiliated to V.T.U) BANGALORE-560 056
Under the guidance of:
Dr. Prashanth C R
prof., Dept. of TCE
Dr. a I t

2. OVERVIEW:
 Introduction
 System architecture
 Implementation Details
 Advantages and Disadvantages
 Applications
 Future scope
 References
2

3. INTRODUCTION
• Radar is an object detection system that uses
electromagnetic waves to identify the range,
• instead of electromagnetic waves, we use ultrasonic waves,
it is called an ultrasonic radar.
• The main components in any Ultrasonic radar are the
Ultrasonic Sensors. Ultrasonic sensors work on a principle
similar to RADAR.
3

4. • Ultrasonic sensors generate high frequency sound waves and
evaluate the echo which is received back by the sensor.
• Sensors calculate the time interval between sending the signal
and receiving the echo to determine the distance to an object.
Cont.…
4

5. SYSTEM ARCHITECTURE
• It consist of 4 major parts.
1. 8051 Microcontroller
2. Ultrasonic Sensor
3. Buzzer.
4. Servo Motor.
• Fig. shows the overview of the RADAR system.
5

6. 6
8
0
5
1
SERVO
Motor
Buzzer
16*2
LCD Display
Ultrasonic
Sensor

7. Micro-controller unit
• Ultrasonic RADAR module is interfaced with the serial port
of microcontroller. The Transmitted wave being reflected from
the object and is received by the ultrasonic Receiver sensor
and the output of which is fed to microcontroller.
• Microcontroller is the heart of the proposed embedded system
which process the data from sensor and display the data on
16*2 LCD display.
7

8. 8
MICROCONTROLLER
• Model 78E052D(NUVOTON
• Operating Vg. 5V
• 8 Bit Mocro-controller
• 256 Bytes RAM
• 8 KB ROM
• Frequency 12MHz.

9. 9
ULTRASONIC RADAR
• Model HC-SR04
• Operating Vg. 5V
• Range 2cm to 400cm
• Frequency 40Hz.
• No. of Pins 4 Pins

10. 10
SERVO MOTOR
• A servomotor is a rotary actuator or linear
actuator that allows for precise control of
angular or linear position, velocity and
acceleration.
• Operating Vg. 12V
• No. of pins 3

11. 11
LCD DISPLAY
• 16*2 Liquid Crystal Display [LCD]
• Operating Vg. 5V
• No. of Pins 16 Pins
• VCC, GND, RS, EN, R/Ŵ, 8 Data Pins, 2
back light LED,POT

12. 12
BUZZER
• A buzzer or beeper is an audio signaling device.
• Operating Vg. 5V
• No. of pins 2
• VCC and GND

13.  It can work in any adverse conditions.
 It has higher sensing distance.
 Ultrasonic sensors can easily interface with
Microcontroller or any type of controller.
 These sensors are easy to use, not dangerous during
operation for nearby objects, person, equipment or
material
13
ADVANTAGES

14.  When these sensors are used for inspection purpose then
these should be water resistive otherwise they could be
damaged.
 t has more difficulties in reading reflections from soft,
curved, thin and small objects.
14
DISADVANTAGES

15. APPLICATIONS:
15
 In air defense it is used for target detection,
target recognition
 Identifying enemy locations in map.
 The Air Surveillance RADAR is used to detect
and display the aircraft’s position in the
airport terminals.
 RADAR speed meters are used by traffic
police for enforcing speed limit.

16. FUTURE SCOPE
A GSM can be used to send SMS to
concerned person about detected
object, distance.
A camera can also be used to view
the live video.
16

17. CONCLUSION
17
 Ultrasonic RADAR Using Micro-controller was
successfully implemented and executed.
 Designed project can able to detect the object
and also gives audio signaling if any object is
detected within the 30cm range.
 The range can be adjustable up-to the 400cm
range.

18. REFERENCES
• A. Balleri, K. Woodbridge;, K. Chetty, "Frequency-agile non-coherent ultrasound radar for collection of
micro-Doppler signatures", 2011 IEEE RadarCon (RADAR) Kansas City, no. 201, pp. 045-048.
• V. Chen, F. Li, S.-S. Ho, H. Wechsler, "Micro-doppler effect in radar: phenomenon model and simulation
study", IEEE Transactions on Aerospace and Electronic Systems, vol. 42, no. 1, pp. 2-21, Jan. 2006
• P. Sammartino, J. Fortuny-Guash, "Space and frequency diversity for moving personnel spectrogram
estimation", Conference proceedings on Radar 2010, 2010.
• The 8051 Microcontroller and Embedded Systems: Using Assembly and C “Muhammad Ali Mazdi,
JaniceGillispie Mazdi, Rolin D. McKinlay”
• Brunner Eberhard, "Ultrasound System Considerations and their Impact on Front-End Components",
Analog Devices, 2002.
19

19. • 4.P. Gope and T. Hwang, “BSN-care: A secure IoT-based modern healthcare system using body sensor
network,” IEEE Sensors J., vol. 16, no. 5, pp. 1368-1376, May 2016.
• 6.T. J. Voss, V. Subbian, and F. R. Beyette, “Feasibility of energy harvesting techniques for wearable
medical devices,” in Proc. 36th Annu. Int. Conf. IEEE Eng. Med. Biol. Soc. (EMBC), Aug. 2014, pp. 626-
629.
• 7.T. Wu, M. S. Arefin, J.-M. Redoute, and M. R. Yuce, “A solar energy harvester with an improved mppt
circuit for wearable iot,'” in Proc. 11th EAI Int. Conf. Body Area Netw. (Bodynets), Turin, Italy, 2016, pp.
166-170.
Cont.…
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20. ThankYou…