At this point, most people are aware that cameras may be watching them wherever they go in public — especially in retail establishments. But if a recent Walmart patent application becomes reality, watching your every move is far from the most intrusive way shoppers will be monitored.
According to the patent, the idea is to put biometric sensors in shopping-cart handles. These sensors would track the shoppers’ heart rates, temperatures, grip strength, and stress levels, not to mention the cart’s weight, speed and idle time. Next, that info would be sent to a server where the data could be analyzed and compared against baselines obtained when the customer first grabbed the cart.