Sewing Machines are arranged dependent on their usefulness, and they have likewise been ordered relying upon their highlights like sewing, knitting and weaving.
Complete system architecture is presented which includes single master and master’s slave scheme. The slave is connected with machine and station light. Whenever the worker starts the machine, slave senses the machine current and turns ON the light and optional fan for a specific period of a time. ON light status is adjusted through programming. Master slaves communicate through RS485. The entire master’s takes data from all the connected slaves and sends it to the single master, afterword single send data to receiver using a wireless transmitter. A receiver receives the data and sends it toward the managerial computer. Data gets processed at the receiver end which sends it to the computer through RS232. If the system is turned off, then data will be saved in EEPROM.
The basic principle of the circuit is comparing the current of machine with supply line current by converting into voltage using lm324 voltage comparator.
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Sewing machine draw a 0.8-amp (tested value) current on working state. So, we compare the current of the machine with predefine value (0.8A). One leg of C.T connects with supply and the other one with machine supply. Machines current flow by pushing the feet on paddle
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