Shiftwise Production Estimation of Asbestos Sheets using General Industrial Controls (GIC)

A rooftop is a top covering of a structure, including all materials and developments important to help it on the dividers of the structure and also provides protection against rain, wind, snow, sunlight and excess of temperature. The asbestos sheet is used in the 20th century widely because of inexpensive and non-flammable properties. South America and Asia are using asbestos in the vital range for producing asbestos cement sheets where the other continents stopped using because of health and legal issues during mining and handling of asbestos. Many industries are involved in the production of asbestos sheets. In such industries, counting of sheets is done by using a proximity sensor during the piling of sheets per day consecutively. The count per hour and count per shift are the manual jobs done by workers. The worker needs to count the sheets manually every hour and should record the count in the register books. Manual works may lead to errors and also it took much time for counting and recounting sheets if there is some error in counting. Hence an automatic counting per hour and per shift method is proposed in this paper. Normally, proximity sensor is used to count sheets. In addition to that GIC PL100 (PLC) is used for counting the sheets per hour and shift and SCADA is for displaying the sheet count in Personal Computer. This proposed method completely avoids the manual intervention and gives an accurate count by proximity senor.