Automation is a technology used to carry out work processes or procedures without human assistance. Greenhouse automation is carried out related to the many operational activities in the greenhouse that involve many human repetitive activities. Some of them are related to fertilizing, watering, spraying pesticides and others. In the current era of the industrial revolution 4.0, manual activities that use human labor began to diminish and were replaced with automated systems and devices in order to streamline the operation of a work field,. PLCs can be defined as a micro-computer based controllers that use instructions stored in memory that can be programmed to implement logic, sequencing, timing, counting and arithmetic functions through digital or analog input / output (I / O) modules, to control machines and processes. This PLC is commonly used in the industrial world as an automation tool for production machines. PLC can be implemented as an automation tool in a greenhouse in this case as an automatic watering system for plants. This research resulted in a prototype of an automatic watering system on a clock based and combined clock-sensor based greenhouse that can run simultaneously on the same PLC.
Batik is a painting or drawing on mori fabric that is made with canting tools. In Subsequent developments to speed up the process, stamp batik is used. CNC (Computer Numerical Control) based automatic stamp batik machine has been developed. This machine uses a manual batik stamper in the batik stamp (tool). The problem that arises in the use of manual chucking on this automatic stamp batik machine is the amount of time needed in the replacement and setting of the batik stamp. The design of a CNC based automatic batik machine with automatic gripper has been developed. This automatic gripper combined with the CNC based automatic stamp batik machine is programmed using a combination of G-Code for the CNC and ladder diagram for the PLC (Programmable Logic Control). Based on the design that has been applied to batik stamps produced stamping that is more consistent and has better accuracy than manual stamping. The average difference in wax thickness is 0,003 mm and has 75 seconds slower than manual stamping. This means that even though the automatic gripper provides better accuracy and precision, it sacrifices stamping times.
Tata letak fasilitas merupakan salah satu hal yang menunjang kelancaran kerja suatu perusahaan. Tata letak fasilitas yang baik dapat memperlancar proses produksi dan mencegah terjadinya kecelakaan kerja. Berdasarkan pengamatan yang dilakukan peneliti di lapangan, tata letak proses produksi masih kurang teratur dan kurang rapi. Hal ini dapat menghambat proses produksi dan dapat menimbulkan kecelakaan kerja. Tujuan dari penelitian ini adalah untuk menganalisis tata letak fasilitas produksi UKM Logam sehingga menghasilkan usulan rancangan tata letak fasilitas produksi. Diharapkan usulan tata letak produksi dapat menjadi pertimbangan pemilik usaha untuk meningkatkan kinerja perusahaan. Tahapan metode penelitian ini terdiri dari pengumpulan data; pengolahan data (identifikasi bahan dan alat produksi, menyusun alur proses produksi, menyusun layout awal produksi, merancang layout usulan produksi); dan analisis. Hasil dari penelitian ini adalah usulan tata letak berdasarkan aliran proses dan Activity Relationship Chart (ARC). Rancangan tata letak usulan yang dibuat oleh peneliti yaitu dengan melakukan perubahan tempat menaruh hasil cetakan di antara alat cetakan 1 dan 2. Kelebihan layout usulan yaitu aliran produksi lebih teratur dan rapi sehingga dapat mencegah terjadinya kecelakaan kerja. Selain itu, jarak antar departemen yang berhubungan saling berdekatan sehingga mempermudah pekerjaan.
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