Study Of Micro Column Gel Test Machine

With the development of medical technology, blood type analysis has become the necessary inspection items of clinical blood transfusion, and the sample size has increased dramatically. The traditional manual detection methods can’t meet the requirement of the new demand of blood analysis work. The requirement of developing fully automatic blood analysis system--micro column gel test machine is imminent. The micro column gel test machine can complete the blood test by the centrifugation of micro column gel cards. The standardization and accuracy of blood analysis can be improved effectively, and the waste of human resources can be decreased. It is of great significant to develop high-speed and high-accuracy micro column gel test machine.According to the function of micro column gel test machine, a set of micro column gel test system based on PLC has been designed, which integrates the actions of clamping micro-column gel cards, the effectiveness determining, centrifugation and the analysis of the result of centrifugation. It can achieve the whole micro column gel test instead of human, and determine the results automatically, decreases the waste of human resources. Detailed contents of this paper are as follows:①According to the sampling system functional requirements, made the total design scheme of micro column gel test machine.②omplete the structure designs of card box system, grabbing system and centrifugation system. Created their3D model and proved their reliability by calculation and finite element analysis.③omplete design of the control system:the selection and implementation of control scheme, the PLC program and the man-machine interactive interface.④ntroduce the image recognition technology of micro column gel card, develop a complete interpretation method by the analysis of identification standard of micro column gel test. The system can complete a quick and accurate interpretation by image cropping, gray processing, smooth filtering, vertical projection and final interpretation.After installation and debugging, micro column gel testing machine has been put into use, and it is able to complete the corresponding experimental project.