Aplicación del Control Predictivo Mediante un Dispositivo Lógico Programable en el Laboratorio de Curtiembre de la FCP- ESPOCH.

Abstract

It was applied predictive control by using a programmable logic device, to reach a correct dosing of chemical in powder provided by a hopper, in the stage of leather tanning finishing, wich has taken place in the Laboratory of the Faculty of Animal Sciences of the Higher School Polytechnic of Chimborazo (Escuela Superior Politécnica de Chimborazo). It was used the deductive method for the structural development design, the internal hardwiring and the algorithm of control. The hopper was built with glass, the system of dosing with stainless Steel rods, micro controls A4988 were used to control the engines, step by step and a computer source to feed the different elements. The algorithm of predictive control and the interface of monitoring of a data were develop within Labview 2013, which are in charge of processing the data to dosify correctly the quantity of chemical in powder. The communication was made by means of Arduino Mega that presents a great quantity of inputs and outputs, with made that communication between the software and hardware be optimal. It was obtained excellent outcomes, according to the test made, the margin of efficiency is of 97%. The application of predictive control bring us a great versatility in the data processing and the future answers in a margin of pre-established time by the programmer. It was applied predictive control by using a programmable logic device, to reach a correct dosing of chemical in powder provided by a hopper, in the stage of leather tanning finishing, wich has taken place in the Laboratory of the Faculty of Animal Sciences of the Higher School Polytechnic of Chimborazo (Escuela Superior Politécnica de Chimborazo). It was used the deductive method for the structural development design, the internal hardwiring and the algorithm of control. The hopper was built with glass, the system of dosing with stainless Steel rods, micro controls A4988 were used to control the engines, step by step and a computer source to feed the different elements. The algorithm of predictive control and the interface of monitoring of a data were develop within Labview 2013, which are in charge of processing the data to dosify correctly the quantity of chemical in powder. The communication was made by means of Arduino Mega that presents a great quantity of inputs and outputs, with made that communication between the software and hardware be optimal. It was obtained excellent outcomes, according to the test made, the margin of efficiency is of 97%. The application of predictive control bring us a great versatility in the data processing and the future answers in a margin of pre-established time by the programmer. It is recommended to implement a prototype in the Laboratory of the Faculty of Animal Sciences of the Higher School Polytechnic of Chimborazo, which executes all the tanning process and not only the finishing, which would generate a great quantity of tanning processes. It is recommended to implement a prototype in the Laboratory of the Faculty of Animal Sciences of the Higher School Polytechnic of Chimborazo, which executes all the tanning process and not only the finishing, which would generate a great quantity of tanning processes.