Ứng dụng công nghệ LoRa truyền nhận tín hiệu đi xa

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Tác giả: Thị Thúy Huyền Đặng, Văn Điều Nguyễn, Việt Anh Nguyễn

Ngôn ngữ: Vie

Ký hiệu phân loại: 629.8 Automatic control engineering

Thông tin xuất bản: Khoa học Nông nghiệp Việt Nam 2022

Mô tả vật lý: 1054-1065

Bộ sưu tập: Metadata

ID: 403673

Thêm vào giỏ

Giới thiệu một hệ thống mạng cảm biến dựa trên công nghệ mạng diện rộng nhằm truyền tín hiệu đi xa, tiết kiệm năng lượng. Hệ thống bao gồm 3 node cảm biến, 1 trạm thu thập dữ liệu (gateway) và 1 hệ thống giám sát trực tuyến. Hệ thống này có nhiệm vụ truyền dữ liệu nối tiếp nhằm mục đích truyền dữ liệu đi xa hơn. Bên cạnh đó, các node truyền dữ liệu đến gateway để đưa dữ liệu lên server nhằm giúp người dùng có thể giám sát trực tuyến hệ thống. Khoảng cách lớn nhất hệ thống có thể truyền dữ liệu ổn định dưới 900m tại nơi thử nghiệm không có vật cản. Tại nơi có nhiều vật cản, tín hiệu được truyền ổn định dưới 400m. Hệ thống mạng cảm biến này có khả năng "ngủ" khi không truyền dữ liệu, việc này giúp tiết kiệm năng lượng của hệ thống. Các thông số của hệ thống được gửi lên server nhằm giám sát trực tuyến trên ứng dụng Blynk. Kết quả này bước đầu đã cho thấy một giải pháp cho các hệ thống truyền nhận tín đi xa trong nông nghiệp., Tóm tắt tiếng anh, This paper introduces a sensor network system based on wide area network technology to transmit signals over long distances, saving energy for concentrated agriculture. The system included 3 sensor nodes, 1 data collection station (gateway), and 1 online monitoring system. The system performed serial data transmission for the purpose of transmitting data over longer distances. Besides, the nodes transmitted data to the gateway to send data to the server, which helped users to monitor the system online. The maximum data transmission distance of the system was less than 900m at the test site with no obstructions. In places with many obstacles, the signals transmitted stably below 400m. This sensor network had a "sleep" state when not transmitting data, which saves system energy. The system parameters sent to the server for online monitoring on the Blynk application. These initial results suggest a solution for systems that need long distance transmission in agriculture.

1. Đọc trực tuyến

1. Đọc trực tuyến

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