{"id":114,"date":"2020-02-23T08:47:00","date_gmt":"2020-02-23T08:47:00","guid":{"rendered":"https:\/\/arms10.org\/publication\/?p=114"},"modified":"2020-02-21T09:00:11","modified_gmt":"2020-02-21T09:00:11","slug":"monitoring-the-sewing-machines-of-garments","status":"publish","type":"post","link":"https:\/\/arms10.org\/publication\/monitoring-the-sewing-machines-of-garments\/","title":{"rendered":"Monitoring the Sewing Machines of Garments"},"content":{"rendered":"\n<h2><a href=\"https:\/\/vssewingmachine.in\/sewing-machine-price-in-chennai\/\">Monitoring the Sewing Machines of Garments<\/a><\/h2>\n\n\n\n<p>The slave is connected with\nmachine and station light. Whenever the worker starts the machine, slave senses\nthe machine current and turns ON the light and optional fan for a specific\nperiod of a time. ON light status is adjusted through programming. Master\nslaves communicate through RS485. The entire master\u2019s takes data from all the\nconnected slaves and sends it to the single master, afterword single send data\nto receiver using a wireless transmitter. A receiver receives the data and\nsends it toward the managerial computer. Data gets processed at the receiver\nend which sends it to the computer through RS232. If the system is turned off,\nthen data will be saved in EEPROM. The data gets transmitted, when the computer\nturns ON. <\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/vssewingmachine.in\/merritt-sewing-machine-price-list-in-chennai\/\"><img loading=\"lazy\" width=\"480\" height=\"480\" src=\"https:\/\/arms10.org\/publication\/wp-content\/uploads\/2020\/02\/sewing-machine-39.jpg\" alt=\"\nMerritt Sewing Machine Price List in Chennai\n\" class=\"wp-image-75\" srcset=\"https:\/\/arms10.org\/publication\/wp-content\/uploads\/2020\/02\/sewing-machine-39.jpg 480w, https:\/\/arms10.org\/publication\/wp-content\/uploads\/2020\/02\/sewing-machine-39-300x300.jpg 300w, https:\/\/arms10.org\/publication\/wp-content\/uploads\/2020\/02\/sewing-machine-39-150x150.jpg 150w\" sizes=\"(max-width: 480px) 100vw, 480px\" \/><\/a><\/figure>\n\n\n\n<p>Data communication for complete system is shown in Fig. 2. Master asks for data from Master 1 to Master 13, etc. among the nth numbers of slaves. After five minutes, master asks to send data to receiver, receiver replies with D it\u2019s means receiver is ready to accept data, afterword transmitter send data to a receiver through the R.F.  <a href=\"https:\/\/vssewingmachine.in\/merritt-sewing-machine-price-in-chennai\/\">Merritt sewing machine price in Chennai<\/a> transmitter and receiver send to towards computer and save it and utilize whenever it needed.<\/p>\n\n\n\n<p>The basic principle of the\ncircuit is comparing the current of machine with supply line current by\nconverting into voltage using lm324 voltage comparator.<\/p>\n\n\n\n<p>When machine starts working then\nflux around the supply line change, this change of flux induces some amount of\nvoltage certainly detection of current give signal to relay to operate turn ON\nthe light [11, 12]<\/p>\n\n\n\n<p>Pros and cons of this current\nsensing mechanism<\/p>\n\n\n\n<ul><li>There is no wired issue.<\/li><li>There is no sensor which can hurdle into work.<\/li><li>There is no sensing area issue.<\/li><li>There is no cost issue.<\/li><li>Easily to install.<\/li><li>Analog components will be used, which efficiency\ndecreases with time. <\/li><\/ul>\n\n\n\n<p>Module Design Sewing machine draw\na 0.8-amp (tested value) current on working state. So, we compare the current\nof the machine with predefine value (0.8A). One leg of C.T connects with supply\nand the other one with machine supply. Machines current flow by pushing the\nfeet on paddle, current is sensed through C.T. Some amount of voltage induces,\nphenomenon explains above. Our circuit working in D.C level so we rectify the\ncurrent using diode and capacitor. We will do half wave rectification because\nusing half wave rectifier voltage drop across the diode is 0.7V and if we use full\nwave rectifier drop across the diode will be 1.4V. If that is so, voltage drops\nacross diode increases due to it sensing voltage can\u2019t detect. The reason is\nthat our current sensor is current transformer and voltage across C.T. is very\nlow, where very low voltages produced. The measured voltage across the diode is\n0.32V at 100Watt load. Polar capacitor connects parallel to diode and C.T for\nimproving transient response. Resistor connects parallel to capacitor for\nimproving discharging time of capacitor and its make R.C circuit. We can change\nthe time using variable resistor. We used lm324 comparator for voltage\ncomparison. We adjust the 0.25 voltage at inverting input pin 2 using voltage\ndivider rules for comparison. Sensor (RC circuit) output will go to lm324 pin 3\nwhich would be 0.45 volt. If the value of voltage below adjustable voltages the\noutput will be zero otherwise one. When sensor output high it will trip the\nrelay and relay will turn ON the light. But the problem is that it will be for\nmomentary. So, we use another comparator. The output of one comparator will go\nto noninverting input (pin 5) through RC circuit and the diode. Resistor and\ncapacitor connect parallel with diode and pin 5 of lm324. A resistor is used\nfor increasing the discharging time of the capacitor and diode use for\nresisting back flow of current. When output of one comparator is high the\ncapacitor will charge and the diode will resist to slow discharge or back flow\nof current. Second comparator output will connect to relay and relay will be\nhigher until the capacitor discharge. We can adjust the timing using RC\ncircuit. <\/p>\n\n\n\n<p>Microcontroller is a mandatory\nrequirement because we are using MAX RS485 for master slave purpose; wireless\nregenerative transmitter and receiver as well as data also need to save. All\nthose reasons, we shifted towards the microcontroller. Moreover, our circuit\narea is also reduced. We can use delay using microcontroller which is more\nreliable.<\/p>\n\n\n\n<p>A. Slave Working Main supply to\ncomparator circuit is same which elaborate above. Comparator output goes to\nmicrocontroller pin. Controller continually checks the P0.4 pin. When the\noutput of the comparator will high, then the controller will give signal to\nP1.6 pin at the base of the transistor 2222 switch. Transistor gives the signal\nto 5V relay and relay will turn on the light. When the lights turn ON, it means\nworker start working and starting status is sent to master using MAX485.\nWhenever the machine turns off, the output of comparator gets low. But\ncontroller continually gives a signal to relay according to delay. Delay is\nadjusted according to desire. When delay finishes, the controller checks the\nstatus of the machine and if the machine still not operating then relay signal\nget low and light will turn off. When the lights turn off then controller again\nsend a signal towards master using RS485. <\/p>\n\n\n\n<p>B. Master Working Master requests\nthe machine status from slaves after every adjustable time. Slaves send its\nstatus to respective master through serial communication MAX485. Master saves\nmachine status and its time using RTC (DS307). Then every master sends data\ntowards the single master on the requested time. Single master sends data to\nreceiver end using R.F (super regenerative module) transmitter and receiver,\nData receives through R.F receiver and send data to computer through USB\nterminal and saves data to excel sheet. If single master didn\u2019t respond then\nmaster save data into its memory then transmit upon ask, similarly, if the\nreceiver doesn&#8217;t respond, then the master will save data into its memory. <\/p>\n\n\n\n<p>&nbsp;Receiver circuit receives the complete working\nstatus of masters through single master. For beginning the transmission, master\nsend the signal to communicate, and then receiver reply back to master that you\ncan communicate, then receiver receive machine status through R.F receiver and\nsends it to computer USB terminal through max232 [15]. If the computer doesn\u2019t\nrespond, then receiver saves data into its memory. When the system responds,\nthen the data send to computer through USB terminal and remove data from its\nmemory. Data will save into excel sheet using the front-end design application.<\/p>\n\n\n\n<p>&nbsp;Application part is the interface between\nmaster controller and receiver controller with a computer. It is software which\nsaves routine data of machines in a text or excel file. Excel File will contain\nall machines start time and working hours in a day. One sheet of excel file\nwill contain complete one-month data of nth machines. One excels file will\ncontain twelve months of data. The application software will appear in Quick\nlunch. Date and time will update through RTC automatically. When the next day\ncomes, curser will move automatically to next tab. Similarly, when next month\ncomes data will save into the next sheet automatically. Communication starts\nwhen receiver reply, then master sends the machine data. If the receiver not\nreply may be its power off or receiver not responding due to some problem\nthat\u2019s why master saves data to memory and when receiver replays then master\nsend it to receiver. Program is running behind the front-end application part.\nFirst time application needs to install. After installing application icon\nappears at Quick launch. Application continually checks the USB terminal and\nwhen the data come its save into excel file. Excel file contains the working\ntime of workers. Rows contain worker number and columns contain the worker\ntime. One sheet contains one day working data in excel file. When next day\ncomes data will save into next column. When next month will come, data will\ninto the next sheet of excel file. Data Rate of transmission is slow, it can\nincrease using high baud rate transmitter and receiver. Application part is\ncompatible for windows XP. It can be improved for other windows and operating\nsystems.<\/p>\n\n\n\n<p>&nbsp;After getting results, now the complete sewing\nmachine hall station lights and optional fan will automatically turn ON when\nmachine starts. When workers are not working according to settable time, then\nlights will turn off automatically. Master will save the working time of the\nmachine. Master sends the machine working time to the receiver then the\nreceiver sends it to the computer through RS232 USB terminal, application\nprogram running there.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Monitoring the Sewing Machines of Garments 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&#8230; <a class=\"direadmore\" href=\"https:\/\/arms10.org\/publication\/monitoring-the-sewing-machines-of-garments\/\"> Continue Reading&#8230;<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[89],"tags":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v15.0 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Monitoring the Sewing Machines of Garments - International Conference Publications<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/arms10.org\/publication\/monitoring-the-sewing-machines-of-garments\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Monitoring the Sewing Machines of Garments - International Conference Publications\" \/>\n<meta property=\"og:description\" content=\"Monitoring the Sewing Machines of Garments The slave is connected with machine and station light. 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