Sorting wagon loading state detecting system based on gray scale meters and sorting system

The invention discloses a sorting wagon loading state detecting system based on gray scale meters and a sorting system. The detecting system comprises a stepping sensor, a first gray scale meter and acontrol unit, wherein the stepping sensor is arranged on a conveying rail of a cross band sorting machine; the first gray scale meter is arranged above the conveying rail, and is located in the advancing direction of a feeding entrance; and the control unit is electrically connected with the stepping sensor and the first gray scale meter. The control unit can execute the method comprising the following steps of: when a detection signal of the stepping sensor is received, starting the first gray scale meter to shoot the photograph of a current passing sorting wagon and performing detecting andanalysis; and according to the detecting and analysis result, determining the first loading state of the sorting wagon. The detecting system disclosed by the invention can detect the loading state ofthe sorting wagon to deter