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There is a common phenomenon that the vagrant cats and dogs like to hide under the car to warm themselves in winter or enjoy the cold in summer,while,people are hard to notice them.When the car starts,there is no time for animal to run away.Hurt and death occurs.No doubt this is a kind of hurt for animal and people,as wall.So,I design this smart key.When people open the car door with the key,the infrared ray receiver will start to work at the same time to receive the special wavelength from the animal’s body.If there is a cat under the car,the key will bright red light to remind people to avoid hurt.
Shuang Li ZhiHong Li Jianfang Zhang