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GB2_A252: SMART ROOM ENERGY MANAGEMENT SYSTEM (SENERGY)
Capstone USIM
Overview
This video demonstrates a smart room energy management system called SENERGY. The system uses a camera for occupancy detection to automatically control electrical loads, such as lights. It calculates monthly energy costs, sends alerts via Telegram, and allows for manual shutdown if energy usage exceeds a set limit. The core functionality relies on an ESP32 microcontroller to manage an SSR (Solid State Relay) that switches power based on occupancy and pre-defined energy thresholds, aiming to improve energy efficiency.
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Chapters
- The SENERGY system integrates camera input for occupancy detection.
- Camera data is processed through a dashboard that controls electrical loads (SSR) and sends Telegram alerts.
- Debug nodes are used to monitor the status of the SSR control and alert notifications.
- The system is designed to manage energy consumption automatically.
Understanding the system's architecture and components is crucial for grasping how it functions and how different parts interact to achieve energy management.
The flow starts with a camera input, which sends data to a dashboard that then controls an SSR and sends alerts via Telegram.
- Users can set a monthly monetary limit for energy usage (e.g., 100 Ringgit).
- When the system detects occupancy, it calculates the current monthly energy cost.
- If the calculated monthly cost exceeds the set limit, the system sends a warning alert via Telegram.
- The alert prompts the user to decide whether to shut down the system or continue usage.
This feature allows for proactive energy conservation by setting financial boundaries and notifying users when those boundaries are approached or exceeded.
Setting a monthly limit of 50 Ringgit and receiving a 'SENERGY alert' warning when the cost goes above this threshold, with options to shut down or continue.
- The system uses occupancy detection to automatically turn electrical loads on or off.
- When a human presence is detected by the camera, the ESP32 sends a signal to turn on the SSR, allowing power to flow to devices like lights.
- When no occupancy is detected, the system sends a signal to turn off the SSR, cutting power to conserve energy.
- This automatic control mechanism aims to reduce energy waste by ensuring loads are only active when needed.
This is the core automation feature that directly impacts energy savings by intelligently managing power to devices based on real-time room occupancy.
When the camera detects a person, the SSR turns on, powering the lights. When the room is empty, the SSR turns off, cutting power to the lights.
- If the monthly energy cost exceeds the limit, a shutdown prompt is sent.
- The user can choose to shut down the system by responding 'yes' to the alert.
- Responding 'yes' turns off the SSR, effectively shutting down the connected electrical loads.
- If the user chooses to continue usage by responding 'no', the SSR remains on, and the system continues operating as usual.
This provides a critical user-controlled override mechanism, balancing automated energy saving with the need for continued operation when necessary.
If the system is over budget and the user selects 'yes' to the shutdown alert, the SSR switches from '1' (on) to '0' (off), stopping power to the lights.
Key takeaways
- Smart energy management systems can automate power control based on occupancy.
- Setting monetary limits for energy usage provides a proactive conservation strategy.
- Real-time alerts and user-controlled shutdown options enhance system usability and control.
- Integrating sensors (like cameras) with microcontrollers (like ESP32) enables intelligent device management.
- Automatic load shedding when rooms are unoccupied is a key method for reducing energy waste.
- The SENERGY system demonstrates a practical application of IoT for energy efficiency in rooms.
Key terms
SENERGYSmart Room Energy Management SystemOccupancy DetectionESP32 MicrocontrollerSSR (Solid State Relay)Telegram AlertsMonthly Energy LimitElectrical Load Control
Test your understanding
- How does the SENERGY system use a camera to manage energy consumption?
- What is the purpose of setting a monthly monetary limit for energy usage?
- Explain the process the system follows when the energy limit is exceeded.
- How does the system differentiate between needing to shut down and continuing normal operation?
- What role does the SSR play in the SENERGY system's automatic load control?