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Walmart’s recent patent efforts have showcased how the retail giant is investigating blockchain, and a new filing points to a focus on autonomous delivery drones.

The application was published on August 30, detailing a system by which “autonomous electronic devices” communicate with each other wirelessly and pass transported objects to each other after an identification process.

After one drone travels to a specific spot where another one is located, they exchange authentication signals using “blockchain keys,” and if the first robot successfully recognizes its “co-worker,” it passes it the package. Drones would rely on a database of delivery information stored on whichever blockchain the company is operating.

To identify each other, robots use can use a variety means to actually send signals from one to the other, including RFID codes, QR codes or ultrasound, the patent filing says.

Further, each of the delivery robots can be kitted out with unique features in order for it to be easily identified by other drones.

Read more here: https://www.coindesk.com/walmart-explores-blockchain-for-connecting-automated-delivery-drones/