Development of intelligence technique in Shariah compliance washing machine via PLC

Abstract

Background and Objective: As in Islamic Fiqh (rule), the usage of flowing clean water is must during washing of the contaminated clothes. This study aimed to describe the integration intelligence technique of water inlet valve and optical sensor through the Programming Logic Control (PLC) in consumer washing machine. Materials and Methods: Washing machine that uses control technology to clean clothing is based on clothing weight factor proportionately to the amount of water used irrespective of the nature of the contaminants. Results: With the concept of algorithm system and integrated into the washing machine, the continuous running water was subjected during the initial wash and spin option. The light sensors used on both inlet and outlet valve ensure the contaminated solids or liquids and accordingly removed. In this study, a washing machine was modified on two major parts prototype of artificial water blend circulation which are hardwares containing modified washing machine, sensors and display, others were the software development of PLC which stand the most crucial part. Through the design of the hardware and software in this system, the water was supplied through the water inlet valve automatically when the switch is ON. The water inlet valve was also close automatically by setting embedded timer in ladder diagram in PLC software. The flow of water in and out of machine was influenced by the detection of optical sensor by execution instruction of PLC at spinning mode of washing machine, clean water flow into rotating drum that having clothes then flows out through water outlet valve. Conclusion: This novelty is not to deny the existing washing machine in the market but here is to introduce the best practise for complying Islamic Shariah on the flowing water technique in now-a-days washing machine. The water flow is expected to flow continuously in spin mode process which simultaneously for drying purpose.