The invention relates to the technical field of detection rating, in particular to an electronic
nose-based fast and lossless beef carcass rating method, which comprises the following steps of: implementing directional adsorption sampling on a target carcass through a multi-directional adsorption probe of an electronic
nose, and synchronously recording the distribution
tensor of volatile substances in a time-space dimension; inputting the distribution
tensor into
competitive adsorption compensation, carrying out
molecular adsorption decoupling calculation, and outputting a correction concentration matrix of each independent
volatile substance;
coupling the correction concentration matrix with an ATP degradation
kinetic model in real time, generating a
metabolism characteristic spectrum through a time-varying concentration
compensation algorithm, and inputting the
metabolism characteristic spectrum into a grading neural network subjected to
muscle texture optimization to output a final grading result; according to the method, through time-varying compensation and ATP degradation dynamic integral correction, the metabolic dynamics after slaughter are tracked in real time, the limitation that a traditional static rating model ignores the metabolic
hysteresis effect is broken through, and the final grading result still has high consistency and reliability under the conditions of environment change, slaughter batch difference and the like.