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Most of the time when the baby fall asleep,parents will put them in a quiet room and go out to do housework or some other things instead of staying with the baby.they can't know when the baby is awake,that's a problem.so I design a baby guardian,it helps remind parents by inducting baby's crying so that parents will know it soon.It also has the function of night light by shooting it,it willsuitable for parents who take care of baby in the night.
South China agricultural university