RANCANG BANGUN THERMO ELECTRIC PADA HELM FULLFACE MENGGUNAKAN RULE BASED SYSTEM 

DESIGN AND DEVELOPMENT OF A THERMOELECTRIC COOLING SYSTEM ON A FULL-FACE HELMET USING A RULE-BASED SYSTEM 

Permasalahan kenyamanan pengguna helm fullface, terutama dalam kondisi suhu tinggi, menjadi fokus utama dalam penelitian ini. Helm jenis ini seringkali menyebabkan ketidaknyamanan akibat peningkatan suhu di dalam helm, yang dapat berdampak pada konsentrasi dan keselamatan pengendara. Penelitian ini bertujuan untuk merancang dan membangun sistem pendingin berbasis teknologi Thermoelectric Cooler (TEC) yang diintegrasikan ke dalam helm fullface, serta dikendalikan menggunakan pendekatan Rule Based System (RBS). Sistem ini mengaktifkan pendinginan berdasarkan logika suhu yang terukur secara real-time melalui sensor DHT22 dan diproses oleh mikrokontroler Arduino Uno. Prototipe diuji pada tiga kondisi suhu ambien (28 °C, 33 °C, dan 38 °C) untuk mengevaluasi kinerja pendinginan. Hasil menunjukkan bahwa sistem mampu menurunkan suhu internal helm rata-rata sebesar 2,5 °C, dengan nilai Mean Squared Error (MSE) sebesar 6,51 °C², dan Mean Absolute Percentage Error (MAPE) sebesar 9,92 %, yang mengindikasikan performa pendinginan yang akurat dan stabil. Implementasi RBS juga i mampu meningkatkan efisiensi energi hingga 15 % dan memberikan respons adaptif dalam waktu rata-rata 8 detik. Dari pengujian lapangan, sistem dinilai cukup nyaman digunakan dengan nilai kepuasan pengguna sebesar 4,2 dari 5. Penelitian ini menyimpulkan bahwa integrasi Thermoelectric dan Rule Based System efektif dalam menciptakan helm yang lebih nyaman dan aman digunakan, khususnya pada iklim tropis. Kata Kunci: Helm Fullface, Thermoelectric, Pendingin Helm, Rule Based System, DHT22, Arduino.

The issue of user discomfort in full-face helmets, especially under high-temperature conditions, is the primary focus of this research. This type of helmet often causes heat buildup inside, which can impair rider concentration and safety. This study aims to design and develop a cooling system integrated into a full-face helmet using Thermoelectric Cooler (TEC) technology, managed by a Rule-Based System (RBS). The system activates cooling based on real-time temperature readings from a DHT22 sensor, processed by an Arduino Uno microcontroller. The prototype was tested under three ambient temperature conditions (28 °C, 33 °C, and 38 °C) to evaluate its cooling performance. The results showed that the system successfully reduced the internal helmet temperature by an average of 2.5 °C, with a Mean Squared Error (MSE) of 6.51 °C² and a Mean Absolute Percentage Error (MAPE) of 9.92 %, indicating accurate and stable cooling performance. The RBS implementation also improved energy efficiency by up to 15 % and delivered adaptive response within an average of 8 seconds. Field testing showed a user comfort rating of 4.2 out of 5, suggesting the system is effective and user-friendly for tropical climates. This study concludes that integrating Thermoelectric technology with iii Rule-Based logic can significantly enhance comfort and safety in full-face helmets. Keywords: Full-face helmet, Thermoelectric cooler, Helmet cooling system, Rule-Based System, DHT22, Arduino.