One of the plants that is cultivated in Tomohon City is Chrysanthemum. Nowadays, the cultivation of chrysanthemum in a greenhouse is still using the conventional method where farmers are difficult to manage the process of watering and light, therefore, the efflorescence of chrysanthemum plants is disturbed. Based on that case, a control system is created using a microcontroller Arduino to adjust the temperature, humidity, light, and watering of plants in the greenhouse, and to monitor the system in a PC using Labview and TCP/IP. The results show that the system has been running according to the plan. Based on the temperature control set point, the valve will be "on" to distribute water and reducing temperature until valve will be "off" when the temperature set point is reached. Moisture control is tested when the heater is "on" and distributes steam in the greenhouse. If humidity is detected lower than the set point value, the heater will be "off". Light control testing begins since the seed is planted up to 10 weeks by controlling the lights at the night and setting the RTC (Real time clock) for 4 hours (09.00 pm to 01:00 am). Intisari-Salah satu tanaman hias yang dibudidayakan di Kota Tomohon adalah bunga krisan. Budidaya tanaman bunga krisan di dalam greenhouse saat ini masih menggunakan metode konvensional sehingga petani sulit mengatur proses penyiraman dan cahaya, yang menyebabkan terhambatnya pembungaan tanaman bunga krisan. Berdasarkan hal tersebut dibuat suatu sistem kontrol menggunakan mikrokontroller Arduino untuk mengatur suhu, kelembaban, cahaya, dan penyiraman tanaman di dalam greenhouse serta monitoring pada PC dengan Labview dan media TCP/IP. Hasil pengujian pada greenhouse menunjukkan bahwa sistem telah berjalan sesuai dengan perencanaan. Pada pengujian kontrol suhu, sesuai dengan set point, valve akan "on" untuk mendistribusikan air irigasi dengan sistem tetes dan menurunkan suhu sampai valve "off". Pengujian kontrol kelembaban dilakukan pada saat heater "on" dan mendistribusikan uap panas di dalam greenhouse. Bila terdeteksi kelembaban lebih rendah dari nilai set point maka heater "off". Pengujian kontrol lampu dilakukan sejak bibit ditanam sampai usia 10 minggu, dengan pola pengaturan fase vegetatif dan penambahan cahaya lampu di malam hari dengan mengatur RTC (real time clock) selama 4 jam (21.00-01.00)
Tomohon is known as a city icon Flowers in North Sulawesi. Chrysanthemum coolies, FE and riri is local flower varieties developed by the community and the government of Tomohon. Development show window of two hectares in 2013 and 1.5 hectares will be built in 2015 on five hectares of land to be provided by the City Government of Tomohon. Show window was built as a showcase that Tomohon as the City of Flowers and used as a nursery site, learning, cultivation, kultut laboratory network and the deployment of flower production, as well as used as a tourist spot. Show Window will also become the center for the cultivation of chrysanthemums in the eastern part of Indonesia. Show Window constructed with substantial funds are expected to benefit society and the flower growers in Tomohon.One attempt to solve the problems in the provision of various information related to the cultivation of chrysanthemum kulo and riri , then need to be made an integrated system based on information technology, for the models show window, chrysanthemum flower cultivation kulo and riri in Tomohon. With the making of integrated systems based on information technology is expected to provide a variety of information quickly, accurately, easily and accurately.This study aims to (1) conduct a needs analysis system required in construction and development show window in Tomohon, and (2) make the design of information systems cultivation of varieties of chrysanthemums kulo and riri accordance with the results of the analysis of the needs of the system and (3) making prototypes computer program. Stages of the activities undertaken include the analysis of system requirements and system design.The information system chrysanthemum flower cultivation kulo and riri is an information system that serves to collect, store, process and present data and information relating to the varieties of chrysanthemums coolies, kulo and riri. Information generated from this system design is based on analysis of information needs that are considered very important by the users. The prototype program is also equipped with navigation models, which can produce a model for conformity assessment show window, a model for determining the capacity of chrysanthemum flower cultivation kulo and riri, the investment model to calculate the cultivation of chrysanthemums, information technology, marketing information (market opportunities). To be able to produce a variety of output produced, the result of design of these systems need to be followed up by implementation so that the system can operate..
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