4 results about "Product distribution" patented technology

The invention discloses a product distribution strategy optimization method considering the endogenous influence of a distribution network on a demand, and the method comprises the steps: 1, considering the endogenous influence of the distribution network on the demand, taking the minimization of the total logistics time consumption in the distribution network as a target, and building a distribution strategy optimization model; 2, analyzing historical demand data, constructing product attribute proxy features, forming a demand feature vector with historical logistics service quality and regional economic development level of a cargo distribution network, training in combination with a random forest prediction algorithm to obtain a prediction model, predicting product demand, and providing input for a cargo distribution strategy optimization model; and 3, constructing an iterative solution framework of product demand prediction and product distribution strategy optimization, and outputting a stable distribution decision. According to the method, the distribution network is dynamically adjusted by introducing a feedback mechanism, so that the total logistics time consumption in the distribution network is effectively shortened, the logistics operation efficiency of an enterprise is improved, and a systematic solution is provided for a product distribution strategy optimization problem in a complex environment.

This invention provides a prediction system and method for the distribution of delayed coking products. The prediction system includes: a delayed coking unit library, comprising multiple delayed coking units and delayed coking product yield data for each unit using at least one industrial raw material; a heavy oil thermal processing performance evaluation device for obtaining test product yield data; a reference unit selection module for selecting the delayed coking unit corresponding to the minimum Euclidean distance of any industrial raw material as the reference unit for that industrial raw material; and a data processing module for calculating the ratio of the delayed coking product yield data of the reference unit to the test product yield under the test conditions, and for calculating the product of each test product yield and the ratio corresponding to each product, and performing normalization processing to obtain the predicted product distribution. The above prediction system is applicable to any conventional industrial raw material and has high adaptability and accuracy.

The application discloses a biomass gasification experiment design and performance prediction method based on support vectors and migration learning, and comprises the following steps: establishing an Aspen plus simulation model, adjusting the gasification temperature and the air equivalent ratio in the Aspen Plus model, and obtaining a biomass gasification simulation data set covering wide boundary operation conditions; taking the simulation data set as a training sample, constructing a simulation proxy model, and searching for optimal hyperparameters; extracting support vector samples through a support vector regression method, designing experiment working points, and collecting experiment data to obtain an experiment data set; taking the experiment data set as model input samples, and outputting predicted values of the model; linearly migrating the model prediction results; performing secondary correction on the difference between the migrated results and the remaining experiment data, and obtaining a high-precision calibration model fused with linear migration and residual correction. The application effectively solves problems such as high cost of biomass gasification experiment data acquisition and limited simulation data precision, constructs a model with better generalization ability and stronger interpretability under limited experiment samples, and realizes accurate prediction of product distribution.

The invention discloses a logistics intelligent distribution method and system based on data analysis, and relates to the technical field of logistics distribution. A product distribution area is divided into a grid map; carrying out attribute assignment on each grid in the grid map; based on the vehicle capacity constraint and the product demand time constraint, establishing a target function by taking minimization of the delivery cost as a target; extracting parameters related to the target function from the grid map and mapping the parameters to the target function; a population is initialized, each particle in the population represents a distribution scheme, and a corresponding distribution path is recorded in the distribution scheme; the distribution cost is used as a fitness value, and the fitness value of each particle is calculated; iteratively updating the speed and the position of each particle, and recalculating the fitness value of each particle after iteration updating; and when an iteration stop condition is met, taking the distribution scheme corresponding to the particle with the lowest fitness value as a final distribution scheme. According to the invention, the distribution of a large number of distribution point products can be completed in time with low distribution cost.