Introduce a design of CAN bus vehicle type leakage current digital sensor based on platform of STM32.This design is based on high precision analog leakage current sensor

data communication is based on CAN bus

processor Cortex—M3（ STM32） is a relatively high-end

low power consumption system

the design on the basis of it is realized through digitization improvement and implementation.The leakage current digital sensor is verified by experiment that its detection is accurate

response is rapid

data communication is safe and reliable

and is currently an advanced vehicle type leakage current digital sensor.In actual use

it is interconnected by several leakage current digital sensors and a computer

to form a leakage detection network for multi-points

finally realizes the comprehensive treatment of leakage current detection.