Optically pumped magnetometers (OPMs) are highly sensitive sensors capable of detecting minute magnetic fields, making them ideal for smart waste management systems. Integrating OPMs into outdoor trash cans can revolutionize waste collection by enabling real-time monitoring of fill levels, detecting metallic waste, and optimizing pickup schedules.

One effective method is embedding OPMs near the base of the bin to measure magnetic disturbances caused by metallic objects. This data can be transmitted via IoT networks to waste management platforms, ensuring timely collections and reducing overflow. Additionally, OPMs can differentiate between ferrous and non-ferrous metals, aiding recycling efforts.

For durability, OPMs should be housed in weather-resistant enclosures to withstand outdoor conditions. Solar-powered setups can ensure continuous operation. Pairing OPMs with weight sensors and GPS further enhances efficiency, creating a comprehensive smart waste solution.

By leveraging OPM technology, cities can reduce operational costs, minimize environmental impact, and improve urban cleanliness. The fusion of advanced sensors with everyday infrastructure paves the way for smarter, greener cities.