Self-powered weigh-in-motion system

A system comprising:

• a microcontroller unit that analyzes sensor data from a sensing piezoelectric component to generate vehicle classification data that describes at least one moving vehicular load;
• and
• a piezoelectric stack, comprising:
• the sensing piezoelectric component that acts as a sensor for the at least one moving vehicular load, wherein the sensing piezoelectric component is communicatively connected to a data input of the microcontroller unit;
• and
• an energy harvesting piezoelectric component that generates energy based on the at least one moving vehicular load and is connected to a power input of the microcontroller unit.

An apparatus comprising:

• a plurality of piezoelectric stacks, a respective one of the piezoelectric stacks comprising:
• a sensing piezoelectric component that acts as a sensor for at least one moving vehicular load;
• and
• an energy harvesting piezoelectric component that generates energy based on the at least one moving vehicular load;
• and
• a computing device that analyzes sensor data from the sensing piezoelectric component and generates vehicle classification data that describes the at least one moving vehicular load, wherein the computing device is powered at least in part by the energy generated by the energy harvesting piezoelectric component.