基于NB-IoT技术的环境温湿度监测系统的研制

doi:10.11959/j.issn.2096-3750.2021.00223

Abstract

Abstract:

In view of the disadvantages of the traditional environmental monitoring system, such as high power consumption, high maintenance cost and no real-time monitoring, an environmental temperature and humidity monitoring system based on narrow band Internet of things (NB-IoT) technology was developed, which is mainly controlled by singlechip microcomputer.The work flow of the main controller and the working mode of the communication module were optimized to reduce the power consumption of the system.NB-IoT communication technology was utilized for data transmission to the cloud platform through the base station and core network.China Mobile IoT open platform (OneNET platform) was adopted to achieve the connection between the terminal device and the application, and expanded functions provided by the platform was used to design a mobile phone application to achieve the remote real-time monitoring of environmental parameters and improve the user’s convenience.

Key words: environmental monitoring, NB-IoT technology, OneNET, low power consumption, system design

CLC Number:

TP391

Minmin MAO, Jiaqi JU, Yuling OUYANG, Yan JIN. Design and implementation of NB-IoT based environmental temperature and humidity monitoring system[J]. Chinese Journal on Internet of Things, 2021, 5(4): 99-106.

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References 17

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通信模块	ZigBee（CC2420）	Wi-Fi（ESP8266EX）	NB-IoT（BC26）
工作电压/V	3.6	3.3	3.7
数据传输速率/(kbit·s^-1)	250	100	86
传输距离/m	1～100	10～100	1～15 000
工作模式平均耗电/mA	21.35	65	30.3
睡眠模式电流/mA	9.06	0.03	0.003

Design and implementation of NB-IoT based environmental temperature and humidity monitoring system

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