|
In the current era of energy shortage , waste plastic recycling plastics industry continues to develop one of the ways . In this paper , the demand for domestic plastics recycling industry Harmonia particle sorting , design a set of recycled plastic sorting system based on image recognition technology , the software written for the system . Recycled plastic sorting system is electromechanical integration technology product , it has a high degree of automation , high sensitivity , stable and reliable , and other characteristics . Its basic principle is to first use of industrial cameras for image acquisition of the movement of particles at a certain speed and rules , and then use the software written for processing the images collected difference threshold segmentation , dilation and erosion , feature extraction , judgment recognition and so on. If it is determined that the particles to for Harmonia particles ( particles need to be removed ) , the computer signal , the signal by the delay to the relay board relay is turned on immediately after the start solenoid valve , high-speed spray compressed air through a nozzle , the particles will be removed blowing from the normal orbit to the the metachromatic granules container , so as to achieve the purpose of the plastic particles of the different colors of sorting out . White and gray mixture consisting of particles of the material , completed development of the prototype test , the test showed that the sorting rate and color sorting accuracy up to 95 %, more than 99% false positive rate can be controlled within 5% , with a ratio of about 1/8. The yield of the sorting system as 20kg / h , with an approximately 7 times the artificial successfully achieve the objectives of the automatic sorting of plastic particles of different colors . And the system can be carried out on the particles training set automatically sorting parameters .
|