Saat ini sistem parkir merupakan hal terpenting dalam kehidupan sehari-hari. Sistem parkir yang semakin modern, khususnya tempat parkir kendaraan mendorong manusia untuk berpikir bagaimana cara supaya sistem parkir efisien dan efektif. Pada penelitian ini dibuat prototipe sistem parkir kendaraan berbasis Arduino Uno dengan Radio Frequency Identification (RFID). Sistem parkir dibuat dengan metode membuka dan menutup portal pintu keluar kendaraan menggunakan RFID. Alat ini terdiri dari sebuah Arduino Uno dan komponen-komponen pendukungnya. Cara kerja sistem parkir kendaraan ini yaitu langkah pertama pada pintu masuk untuk sensor modul infrared akan dilewati oleh kendaraan maka motor servo akan aktif yang berfungsi sebagai indikator untuk membuka dan menutup portal pintu masuk ataupun pintu keluar kendaraan area parkir. Hasil pengujian menunjukkan bahwa jika kendaraan mau keluar maka RFID tag yang dimasukkan benar maka akses diterima motor servo aktif dan LCD menampilkan kapasitas area parkir tersebut. Jika RFID tag tidak terdaftar maka motor servo tidak aktif.
Overload is a condition where the goods stored in the warehouse exceed the existing capacity. With the accumulation, it will increase the storage cost for the products/goods stored. The purpose of this research was to help companies determine the optimal amount of production, optimal production time intervals and maximum product inventory so that there is no excess stock of products in the warehouse, and to obtain a minimum total inventory cost by using the Economic Production Quantity (EPQ) model. To collect the data needed in this study, secondary data was used which consists of production data and product delivery of company X. From the research results, the optimal production rate (Q*) is 13,646 MT/production cycle with an optimal production time interval of 1.16 months. or equal to 35 days, the maximum amount of inventory (Imax) was 429 MT. The total minimum inventory cost in one production cycle/month is Rp.167,925,698.28, -. The difference in total inventory costs generated using the EPQ method and calculations based on company conditions is 9% or equivalent to Rp.16,538,501, -. Based on the results of the sensitivity analysis it was known that all parameters are sensitive to Q*, Imax, and total inventory costs. However, a significant change is the parameter of saving costs, where the increase and decrease in saving costs will decrease and increase Q*, Imax, and the total cost of inventory.
This research is a case study to solve the problems that occur at PT. Z, which is engaged in palm oil processing. The case raised is the spare parts warehouse of PT. Z, where the problem that has occurred so far is the policy of random storage in the spare parts warehouse. This results in irregularities that complicate the process of receiving, storing, searching and releasing spare parts, which is indicated by the high total travel distance in the warehouse. Thus, the purpose of this study is to minimize the total travel distance in the spare parts warehouse by using a dedicated storage policy which is based on an analysis of the product storage layout (spare parts). Based on the results of data processing using a dedicated storage policy, the initial trip distance is 4257.25 meters and the proposed trip distance is 4002,5 meters. From these conditions, it can be concluded that using a dedicated storage policy can reduce the total travel distance in the spare parts warehouse by 254,75 meters or around 5,9%.
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