AquaSmatic

Inspiration

Water scarcity is a pressing issue in many parts of the world, including my home country and other Asian and African nations like Pakistan, India, Bangladesh, Nepal, Sudan, and more. An estimated 300 million households, comprising 1.7 billion people, face this challenge daily. In my family, this scarcity was particularly acute. My father would wake up at 3 AM every morning to manually operate the water pump, filling our water storage system. Due to his age, he often forgot to turn the pump off or on, leading to either water shortages or overflows that flooded our home. This experience highlighted the need for a more reliable and efficient solution to manage water resources, especially in regions facing water scarcity.

What it does

SmartFill Pro is an affordable, $10 wireless device that can be installed in just 10 minutes. It automates water tank management, eliminating the need for manual intervention. By installing a unit in your overhead tank, you can wirelessly control the water pump. The system monitors water levels and automatically turns the pump on or off to maintain an optimal supply.

How we built it

SmartFill Pro is a three-part system: Float Switch: This component senses the water level in the overhead tank. Transmitter Unit: Equipped with an STX 882 transmitter and a 555 timer IC, this unit receives the water level signal from the float switch and transmits it to the pump unit. The 555 timer IC regulates transmission power using Pulse-Width Modulation (PWM) to conserve battery life. Pump Unit: This unit houses an SRX 882 receiver, a relay and another 555 timer IC. The receiver captures the signal from the transmitter and controls the pump's operation. The 555 timer IC acts as a buffer, ensuring the pump continues to run until the signal is lost, guaranteeing a consistent water supply. This simple yet effective design keeps costs low while maximizing battery life, making SmartFill Pro a reliable and affordable solution for water management.

Challenges we ran into

Sensor Selection: Submerged Sensor: A float switch was chosen as the optimal solution for water level sensing due to its simplicity, reliability, and cost-effectiveness. Its waterproof design ensures durability in submerged environments. Battery Life Optimization: Power Consumption Analysis: A thorough analysis of the system's power consumption was conducted to determine the total milliampere-hour (mAh) capacity required. PWM Signal Adjustment: The Pulse-Width Modulation (PWM) signal was carefully adjusted to balance power efficiency and reliable communication. By optimizing the duty cycle, the system's power consumption was minimized, extending battery life. Legal Wireless Operation: ISM Band Compliance: To ensure legal operation, a wireless module operating within the Industrial, Scientific, and Medical (ISM) band was selected. This band is globally recognized for unlicensed use, eliminating the need for specific licenses or permits. Range Optimization: The module was chosen to provide adequate range for reliable communication between the transmitter and receiver units, considering factors like environmental conditions and potential obstacles.

Accomplishments that we're proud of

We're proud to have successfully: Designed and Prototyped: Developed a functional circuit design for SmartFill Pro, demonstrating our technical expertise and innovative approach. Optimized Battery Life: Implemented strategies to maximize battery life, ensuring the device's reliability and reducing the need for frequent battery replacements.

What we learned

Simplicity is Key: A well-designed solution doesn't always require complex components or intricate systems. Often, a simple, straightforward approach can be the most effective and reliable.

What's next for SmartFill Pro

With a successful design and a clear vision, the next steps for SmartFill Pro involve: Mass Production and Distribution: Establishing partnerships with manufacturers to scale up production and ensure cost-effective manufacturing. Developing a robust distribution network to reach target markets efficiently. Advanced Features and Integration: Designing an intuitive user interface for easy installation and operation. Integrating IoT technology for remote monitoring and control of the system. Incorporating features like water quality monitoring and leak detection. Exploring renewable energy integration: Consider solar or wind power to power the pump and device, reducing reliance on batteries and minimizing environmental impact. Sustainability and Scalability: Using eco-friendly materials and energy-efficient components. Developing solutions for scaling removal in pipes to improve water flow efficiency. Partnering with water utilities to implement SmartFill Pro in large-scale water distribution systems. By focusing on these areas, SmartFill Pro can become a game-changer in water management and energy conservation, making a significant contribution to a more sustainable future.