E&TC / ECE · Security and safety system · Final year project
Camera Based Surveillance System Using Raspberry Pi
A home and office security camera built on a Raspberry Pi. It watches the camera feed for motion, and when movement is detected it records images and switches to alert mode to notify the owner.
What is the Camera Based Surveillance System Using Raspberry Pi project?
A home and office security camera built on a Raspberry Pi. It watches the camera feed for motion, and when movement is detected it records images and switches to alert mode to notify the owner.
Key facts
- Type
- Final year project · Advanced
- Suitable for
- Diploma capstone and B.E / B.Tech final year
- Build time
- 6 to 8 weeks
- Estimated component cost
- ₹7,500 – ₹11,000
- Guidance from
- ₹9,999 (Hardware / IoT Final Year)
How the Camera Based Surveillance System Using Raspberry Pi works
- 12 V power adapter / step-down transformer supplies the circuit; a regulator gives the controller and sensors a steady 5 V.
- The Camera module captures images or video for recognition and monitoring.
- The PIR motion sensor detects human movement from the change in infrared heat.
- The LDR light sensor senses whether it is light or dark so lights can switch automatically.
- The Push buttons and switches provide manual inputs and the power switch.
- The Raspberry Pi 4 runs Linux and the main program, handles the camera, networking and heavier processing such as image recognition.
- The 16×2 LCD with I2C adapter shows readings, status and messages to the user.
- The LEDs indicate status.
- The Buzzer gives an audible alert.
Block diagram
Inputs
Camera modulePIR motion sensorLDR light sensorPush buttons and switchesController
Raspberry Pi 4Outputs
16×2 LCD with I2C adapterLEDsBuzzerComponents list and cost
Typical prices from Indian online stores and electronics markets (Lamington Road, Budhwar Peth, SP Road). Buy from one store where you can to save on shipping.
| Component | Qty | What it does | Approx. cost |
|---|---|---|---|
| Raspberry Pi 4 (2 GB) | 1 | Runs Linux and the main program, handles the camera, networking and heavier processing such as image recognition. | ₹4,800 |
| Camera module | 1 | Captures images or video for recognition and monitoring. | ₹650 |
| PIR motion sensor (HC-SR501) | 1 | Detects human movement from the change in infrared heat. | ₹110 |
| LDR light sensor | 1 | Senses whether it is light or dark so lights can switch automatically. | ₹15 |
| Push buttons and switches | 2 | Provide manual inputs and the power switch. | ₹80 |
| 16×2 LCD with I2C adapter | 1 | Shows readings, status and messages to the user. | ₹220 |
| LEDs (assorted) | 2 | Indicate status. | ₹40 |
| Buzzer | 1 | Gives an audible alert. | ₹20 |
| 12 V power adapter / step-down transformer | 1 | Supplies stable low-voltage power from the mains. | ₹250 |
| microSD card 32 GB (Class 10) | 1 | Needed for this type of build. | ₹450 |
| Official 5 V 3 A USB-C supply for Raspberry Pi | 1 | Needed for this type of build. | ₹450 |
| Passive components, PCB and wiring kit | 1 | Resistors (assorted), capacitors (assorted), transistors / MOSFETs, cables, connectors and jumper wires, diodes, PCB / breadboard and ICs and IC sockets. | ₹430 |
| Wiring, PCB, soldering and enclosure | 1 | Project overhead | ₹450 |
| Demo model base / mounting board | 1 | Project overhead | ₹500 |
| Testing spares and replacements | 1 | Project overhead | ₹300 |
| Estimated total | Varies with brand, quality and city | ₹7,500 – ₹11,000 |
Prices are estimates for budgeting. We confirm the bill of materials when your design is frozen, and components are charged at actual cost with bills.
How much does this project cost?
| Option | What you get | Cost |
|---|---|---|
| Components only | You buy the parts and build it yourself | ₹7,500 – ₹11,000 |
| Hardware / IoT Final Year | Working model or guided build, Circuit diagram and bill of materials, Firmware / code with explanation | from ₹9,999 + components |
| Capstone Project (CPE) | Working project or model, Black book in MSBTE format, Step-by-step explanation | ₹9,999 + components |
| Diploma ITR | 100% working source code, Project report PDF, PPT | ₹1,999 + components |
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Download the project brief (PDF)
Summary, working, components and cost and viva questions on one branded PDF to show your guide or team. To get it developed, contact us on WhatsApp.
What you submit with this project
- Working model with circuit diagram and program code
- Project report or black book in your university's chapter order (block diagram, circuit, calculations, results)
- Presentation for the review and final viva
- Synopsis for topic approval, if your college asks for one
E&TC / ECE viva questions on this project
What is the aim of the Camera Based Surveillance System Using Raspberry Pi project?
A home and office security camera built on a Raspberry Pi. It watches the camera feed for motion, and when movement is detected it records images and switches to alert mode to notify the owner.
Explain the working of your project in short.
12 V power adapter / step-down transformer supplies the circuit; a regulator gives the controller and sensors a steady 5 V. The Camera module captures images or video for recognition and monitoring. The PIR motion sensor detects human movement from the change in infrared heat. The LDR light sensor senses whether it is light or dark so lights can switch automatically.
Why did you choose a Raspberry Pi instead of an Arduino?
The Raspberry Pi is a full computer with an operating system, so it can run Python, OpenCV and a web server. An Arduino is a microcontroller that is better for simple real-time control but cannot process images or run multiple programs.
How is the camera image processed?
Frames are captured and processed with OpenCV: converted to grayscale, filtered and passed to a detection or recognition model that labels faces, objects or number plates.
How does a PIR sensor detect motion?
It has two pyroelectric elements that see infrared from different zones. When a warm body moves across them, the difference changes and the sensor gives a HIGH output.
How does an LDR work?
An LDR is made of cadmium sulphide. In light its resistance drops to a few hundred ohms, and in darkness it rises to about a megaohm. Used in a voltage divider, it gives a voltage that depends on light.
Why is a pull-up resistor needed with a push button?
Without it the input pin floats and reads random values. The pull-up keeps it HIGH until the button connects it to ground.
Explain the block diagram of your project.
The input section senses the real-world quantity, the Raspberry Pi 4 processes it according to the program, and the output section displays the result and drives the actuators. The power supply section feeds every block.
Which communication protocols are used between the modules?
I2C for the display, RTC or motion sensor (only SDA and SCL lines) and analog inputs read by the ADC for the analog sensors. Each protocol was chosen because the module supports it and it uses the fewest pins.
What is the operating voltage of the circuit?
The controller and most sensors work at 5 V (ESP boards and some modules at 3.3 V). A 12 V adapter powers the board, and a regulator steps it down. Motors and relays get their own supply line so they do not reset the controller.
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