AutoCoding Systems and Dairy Crest, Davidstow are no strangers when it comes to developing applications to meet specific requirements. They have recently worked together to design a vision system, which analyses and identifies vacuum failures on sealed packs of 20kg blocks of cheese.
Dairy Crest, Davidstow produces over 48,000 tonnes of cheddar cheese per year in 20kg blocks, 80% of this being the well-known Cathedral City brand. The 20kg blocks are vacuum sealed to prevent air leaking into the cheese prior to the 12-18 month maturation cycle.
The AutoCoding vision system identifies vacuum failures on the sealed 20kg blocks. The system comprises a camera driven software application that analyses the reflected light from the surface of the vacuum-sealed cheese block and rejects the block if it doesn’t meet the defined criteria.
Reports are generated which give the total number of blocks through the system, the number of seal failures and an analysis of the efficiency of the sealing process. With over 120 tonnes of cheese going along the line each day, the system had to be efficient because even a small percentage of cheese blocks with broken seals would result in mould growth during the maturation period.