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Fitness bracelets for cows

09.12.2022

The use of smart technologies to monitor the health, reproduction, location and environmental conditions of cattle can contribute to food safety and supply chain efficiency, but this monitoring increases energy costs for an already high industry. To combat this, scientists have developed a wearable sentient device for cows that captures the kinetic energy generated by even their slightest movements and uses it to power smart ranch technology.

“On a ranch, monitoring information about the environment and health of cattle can help prevent disease and improve efficiency in breeding and pasture management. This information can include oxygen concentration, air temperature and humidity, amount of exercise, reproductive cycles, diseases, and milk production. "explained co-author Zutao Zhang, an energy researcher at Southwestern Jiaotong University in China.

"Smart ranch" involves cows wearing small sensory devices around their ankles and necks that are powered by whatever the cows do during their normal ranch activities.

There is a huge amount of kinetic energy that can be harvested during the daily movements of cattle, such as walking, running, and even neck movements.

Once captured, the energy is stored in a lithium battery and used to power the device. The Kinetic Energy Collector specifically collects the kinetic energy of weak motion.

The design of the team is unique as it contains a movement amplification mechanism that uses magnets and a pendulum to enhance the small movements of the cows.

The scientists also tested the devices on humans and found that a light jog was enough to measure the temperature in the device. Researchers see future applications in sports monitoring, healthcare, smart home and wireless sensor networks.

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