Intelligent compact shelf all-in-one sensor

The utility model relates to the technical field of intelligent compact shelving, in particular to an intelligent compact shelving all-in-one sensor which comprises a shell and a main control board, the main control board is arranged in the shell, and a receiving magnetic in-place sensor, a three-emission diffuse reflection sensor and a personnel counting double-receiving sensor are sequentially arranged on the main control board. The main control board is electrically connected with the receiving magnetic in-place sensor, the three-emission diffuse reflection sensor and the personnel counting double-receiving sensor. The receiving magnetic in-place sensor comprises an aisle infrared receiving circuit and a magnetic in-place circuit. The aisle infrared receiving circuit comprises an aisle infrared receiver, a frequency-selecting amplifying circuit I, a power supply circuit I and a signal output circuit I; the four functions of an infrared correlation sensor for detecting whether a person exists in a passagewa