Search group control method of a batch of products

Abstract

A brief overview of group control methods is given, which allow you to simultaneously control several products according to one or more parameters with one control tool. To reduce the time of control of a batch of products in comparison with its piece-by-piece control, a group control search method was developed and studied. It is based on an approach used to find hidden faults in radio equipment by dividing the circuit into parts and then monitoring them. The requirements that the controlled products must satisfy are determined, and the conditions for the advantage of the method are established. The influence of the volume and level of defectiveness of a batch, the distribution of defective products throughout the batch on the time of its inspection was studied. It has been proven: uniform distribution of defective products throughout the batch leads to the longest inspection time; the time of batch control by this method is significantly reduced with a decrease in the level of its defectiveness. The conditions for the feasibility of using the method in terms of batch volume and the level of its defectiveness have been established, under which it has an advantage over pieceby- piece inspection methods. A device for implementing the method is described. The efficiency of the search method of group control of a batch of products is calculated when applied in specific conditions. The obtained results can be used by technologists in various industries when developing processes for controlling batches of products.