Pork freshness intelligent detection device

The invention discloses an intelligent pork freshness detecting device, and comprises a gas-collecting module (1), an image collecting module (2), a neural network module (3) and a computer (4), which are connected mutually through a leading wire. The gas-collecting module (1) collects a released ammonia gas (NH 3 ) and a hydrosulfuric acid gas (H 2 S) during the metamorphic process of the pork; the image collecting module (2) collects a diagnostic information of a relative gray-scale value (H, S, I) of a diagnostic wavelength of a specific element during the metamorphic process of the pork; H, S, and I are respectively a brightness, a chrominance and a saturation; the released ammonia gas and the hydrosulfuric acid during the metamorphic process of the pork, and the relative gray-scale value of H, S and I are inputted in the neural network module (3). The grade of the freshness of the pork is gained through the interfusion of a plurality of data, and can be displayed on the screen of the PC computer (4). The invention has the advantages that the fast detecting on site can be achieved, and the freshness of the pork can be identified expediently, quickly and effectively.