Animal guardian / Stray animal sensor

Any life has its value of existence,so we need to respect the life.
The weather cold,a lot of stray animal likes to hide under the car heating.Because of the car blind areas,the driver couldn’t see under or behind the car have stray animals.The engine of the automobile causing the tragedy.The design of the Stray animal sensor can be fixed on the outside of
the car .When openning the door,If have animal,the sensors will alert the driver and driving of stray animal.If no animal,the driver can feel at ease to start the car.