Pada penelitian ini dibahas mengenai kendali suhu air dengan sensor termokopel tipe-K pada simulator system pengisian botol otomatis. Pengontrolan ini ditujukan untuk menjaga agar botol yang digunakan tidak mengalami pemuaian akibat terisi oleh air dengan suhu tinggi. Dari peneltian didapatkan bahwa botol yang digunakan dalam system ini dapat bertahan atau tidak mengalami pemuaian jika diisi oleh air dengan suhu ± 65 o C. Suhu inilah yang kemudian dijadikan sebagai referensi dalam kendali suhu air oleh sensor termokopel. Kendali suhu ini dilakukan dengan cara memantau aktivitas heater agar tidak memanaskan air melebihi suhu setpoint yang ditentukan yaitu 60 o C. Pada proses kendalinya, sensor termokopel dibantu oleh PLC Schneider Modicon TM221M16R. Proses komunikasi antara sensor termokopel dan PLC memanfaatkan analog input yang tersedia diperangkat PLC. Adapun yang dibaca oleh PLC adalah tegangan yang dihasilkan oleh termokopel akibat perbedaan suhu antara hot junction dan cold junction. Tegangan yang dihasilkan oleh perbedaan kedua titik ini sangat kecil, berkisar antara 40µV/ o C. Oleh karena itu digunakanlah IC op amp LM 358 sebagai penguat tegangan. Keluaran dari LM 358 inilah yang dijadikan sebagai input analog PLC untuk mengontrol suhu air.
Robot micromouse is one of the mobile robots that can pass through the labyrinth path to find the destination point that has been determined. This robot will move freely with 8 pieces of infrared sensors that will detect every passing labyrinth wall where the direction of movement of the robot is determined when there is a response to the object in front, right, left and behind the robot. This micromouse robot uses PID Algorithm and micromouse robot design is made using Arduino Mega 2560 as control system, compass sensor as maping or mapping robot direction and 2 motor drivers to move 4 dc motor using omni wheel.
The current technology enables automation using a robot to help or substitute humans in industry and domestic applications. This robot invasion to human life emerges a new requirement to set a method of communication between a human and a robot. One of the oldest languages is finger gesture, and this is easy to be applied method by implementing image detection that connected to the actuators of the robot to respond to human orders. This paper presents a method to navigate robots based on human fingers cue, including "Forward," "Backward," "Turn right," "Turn left," and "Stop" to generate the forward, backward, turn right, turn left, and stop motion. The finger detection is facilitated by a camera module (NFR2401L) with the image plane of 640 x 480 and 30 fps speed. The detection in coordinates x <43 and y <100, robot moves forward, in x <29 and y <100-coordinates , robot turns left, and in x <19 and y <100-coordinates , robot turns right. The experiment was conducted to show the effectiveness of the proposed method, and to some extent robot can follow human cues to navigate in its assigned location.
The distribution of fuel oil carried by the tanker to the Fuel Stations is hard to be monitored. There are cases where the driver, who steals the fuel from the tank, harder to be tracked down. To overcome this problem, researchers used Global Positioning System and Global System for Mobile Modem Communication as an application. The research integrates multiple electronic Global Positioning System device, ultrasonic sensor, Arduino and mobile modem in the system. The device is placed in the carriage fuel tank of the tanker. This system aims to determine the car's position and content of the fuel tank. It will retrieve current car position and carriage content and send it over Short Message and voice call over Mobile modem. A program, built with Delphi will retrieve the message and point out the car position and tank level accurately on Google Maps. The results obtained indicated that the error is approximately ± 0.05 and deviation is 0 latitude and 0.00362 longitude. For further development, we plan to improve two parameters by increasing warnings with the increase in the capacity of the sensors. From the overall discussion in this study, it can be concluded that the equipment content monitoring system can be well applied.
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