NGHIÊN CỨU PHƯƠNG PHÁP NÂNG CAO HIỆU QUẢ TRUYỀN THÔNG ĐỐI VỚI CÁC HỆ THỐNG QUẢN LÝ PHÂN HỆ DỊCH VỤ VẬN TẢI TRÊN MÔI TRƯỜNG IoT SỬ DỤNG GIAO THỨC MQTT=A STUDY OF COMMUNICATION IMPROVMENT FOR FLEET MANAGEMENT SYSTEMS IN INTERNET OF THING ENVIROMENT USING MESSAGE QUEUING TELEMETRY TRANSPORT (MQTT)

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Tác giả: Thị Tuyến Hồ, Thu Trang Lê, Đức Bình Nguyễn, Kim Sơn Nguyễn

Ngôn ngữ: vie

Ký hiệu phân loại:

Thông tin xuất bản: Tạp chí Khoa học và Công nghệ - Đại học Thái Nguyên, 2020

Mô tả vật lý:

Bộ sưu tập: Metadata

ID: 472440

Thêm vào giỏ

Các hệ thống quản lý phân hệ dịch vụ vận tải như hệ thống quản lý taxi, vận tải hàng hoá, phương tiện cho thuê đóng một vai trò quan trọng trong hệ thống giao thông công cộng nói riêng và đời sống xã hội nói chung. Tuy nhiên, hiện nay các hệ thống này đều gặp phải một số khó khăn như vấn đề quá tải truyền thông, khả năng tích hợp hạn chế ... do sử dụng giao thức HTTP. Điều này cản trở việc phát triển hệ thống quản lý với nhiều tính năng và thông minh hơn trong môi trường vạn vật kết nối. Trong nghiên cứu này, nhóm tác giả đề xuất phương pháp ứng dụng giao thức giao vận tầm xa (Message Queuing Telemetry Transport - MQTT) trong thiết kế hệ thống quản lý phân hệ dịch vụ vận tải cải tiến nhằm nâng cao hiệu quả truyền thông và phù hợp với môi trường truyền thông băng thông thấp, độ trễ cao của các phương tiện giao thông. Để đánh giá kết quả của phương pháp đề xuất, chúng tôi sử dụng phần mềm Elipse Mosquitto 1.4.9 giả lập vai trò của MQTT Broker thuộc trung tâm điều khiển trên nền hệ điều hành Windows Server. Kịch bản truyền thông được xây dựng trên ngôn ngữ lập trình Java. Kết quả cho thấy, hệ thống đề xuất có lợi thế rõ ràng hơn so với hệ thống hiện tại trên phương diện hiệu quả truyền thông.Fleet management systems play an important role in our daily life. However, most of traditional fleet management systems use HTTP-based protocols for communications, which may cause a serious overhead communication problem and limited intergration capabilities. This c-haracteristic hinders the taking advantage of these devices in developing the management systems with more features and intelligent in the Internet of things. In this study, the authors propose an application of using Message Queuing Telemetry Transport (MQTT) in fleet management systems, which has ability to support low bandwidth and high latency network environment over long-distance areas. To evaluate the proposed approach, the authors used the Elipse Mosquitto 1.4.9 open source software suite to simulate the MQTT Broker of the control center based on Windows Server operating system. The communication scenarios are established using Java programming language. The proposed architecture is intended to improve the efficiency of communication that was used in the traditional systems.

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