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Metal detector robot
- 1. Final Project Presentation on The Metal Detector Robot By: Atul Jha Pujan Shrestha Aadarsha Bajagain Nishan Thapa
- 2. Concept Development Image source: Movie - Mine
- 3. Introduction • A robotic vehicle that can sense metals ahead of it on its path • Consists of a LC circuit that uses the principle of electromagnetic induction • Whenever the metal is present in front of the detector, there is a change in the frequency of the coil • Using the frequency fluctuations between current in the circuit, the metal is detected and sound in the buzzer is produced to indicate the detection • Vehicle is controlled by smart phone • The direction is changed remotely via smart phone using Bluetooth as communication interface
- 4. Objectives • To implement technology in mines. • To detect metals in remote areas. • To implement this technology in security system. • To attain uniqueness in the design.
- 5. Components Used • Ardunio uno • HC-05 Bluetooth Module • LM339 • Motor driver • Robot Car Chassis Set
- 6. Implementations Fig. Block Diagram of the System
- 7. Flow chart
- 8. Schematic Diagram Fig. Schematic Diagram of the System
- 9. Power Consumption • Main power supply 9V • Motor * 2 = 3V • Bluetooth Module 3.3V • Secondary power supply 5V(Metal Detector Circuit)
- 10. Conclusion • Successfully developed a metal detector robot • Attained basic knowledge on different steps in circuit manufacturing such as circuit testing and debugging, soldering components, PCB designing and manufacture • Achieved knowledge on bluetooth serial communication, Microcontroller operating mechanism, operation of decoder and shift registers etc.
- 11. Limitations • The range of inductor is very short • The bluetooth works for short distance
- 12. Future plans • The system can be made for greater power • Efficiency can be increased • Camera implementation in the robot can be done • Ultrasound sensor for obstacle detection • Note: this is just the prototype version