Anti-tamper Techniques to Thwart Attacks on Smart Meters
Non-technical losses (“theft”) account for billions of dollars of revenue loss for utility providers around the world as individuals are able to hack meters to slow or stop the accumulation of energy usage statistics. This loss has driven increased requirements for enhancing the protection designed into new smart meters. This training session will discuss different methods of attacking smart meters and how TI’s analog portfolio can be used to detect or even prevent these attacks. In one scenario magnets are used to saturate any transformers present in the system. New TI Designs use AMC1304/05 isolated modulators and transformer-less power supplies to immunize the meter from these attacks. Other TI Designs will use the DRV503x Hall Effect sensors to detect the presence of powerful magnets in any dimension and alert the utility to the attempt. Finally, we will discuss using the LDC0851 to replace mechanical solutions in detection of case tampering attacks.