May scan thong minh

Cac nha khoa hoc My dang che tao mot he thong an ninh thong minh, co the quet qua dong tu mat cua mot doi tuong nao do khi ho tien gan den chot kiem soat. Cai hay cua thiet bi nay la nguoi bi "theo doi" khong hay biet gi.

Cac he thong an ninh hien nay yeu cau doi tuong dung yen va nhin thang vao may quay ky thuat so o pham vi gan. Nhung voi he thong moi thi khong can nhu vay. Do su dung nhieu may quay co do phan giai cao va nhung may nay co the "lia" nhieu huong khac nhau nen he thong an ninh moi co the "tap trung" ngay vao dong tu cua doi tuong khi ho xuat hien tu xa. Thiet bi moi co the quet qua khuon mat cua chu the 30 lan/giay trong pham vi 3m. (LiveScience.com)

H.Y