Radar system developed to save toddlers left in automobiles in Japan

According to The Asahi Shimbun, a Japanese leading auto parts maker developed a car-mounted radar system that triggers an alarm if it detects that a toddler has been left inside the automobile.
Aisin Corp., an affiliate of Toyota Motor Corp., plans to make the device commercially available around 2025.
It said it hopes to prevent children from dying of heatstroke while trapped inside cars during sweltering temperatures.
 
https://www.asahi.com/ajw/articles/14663399