基于窄带物联网的车位锁设计.docxVIP

摘要 本论文基于新兴的窄带物联网技术（Narrow Band Internet of Things, NB-IoT），研究并实现了该技术在车位锁中的应用。该套模拟系统由基于NB-IoT的车位锁感知终端、物联网IoT数据交换平台、车位锁监控APP三部分组成。其中，基于NB-IoT的车位锁感知终端包括以STM32F103C8T6单片机为核心CPU的主控制器模块、12V继电器隔离模块、12V电子锁模块（用来模拟车位锁）、HC-SR04超声波检测模块、电源模块及电平转换模块等共同构成。整套系统可实现由基于NB-IoT的车位锁感知终端感知该车位上是否有车，通过NB-IoT无线传输方式上报给IoT平台，由IoT平台实现数据的接收、解码及存储，用户可使用车位锁监控APP对该车位进行实时的状态监控，并可通过该APP下发控制命令，锁住或解锁该车位。 关键词：窄带物联网；NB-IoT；车位锁；单片机；STM32F103C8T6；电子锁；超声波。 ABSTRACT Based on the new Narrow Band Internet of Things (NB-IoT), this paper studies and implements the application of this technology in parking lock. The simulation system consists of three parts: the NB-IoT-based parking lock sensing terminal, the IoT data exchange platform of the Internet of Things, and the parking lock monitoring APP. Among them, the NB-IoT-based parking lock sensing terminal consists of STM32F103C8T6 MCU as the core CPU of the main controller module, 12V relay isolation module, 12V electronic lock module (used to simulate parking lock), HC-SR04 ultrasonic detection module, power module and level conversion module. The whole system can be realized by the NB-IoT-based parking lock sensing terminal to perceive whether there is a car on the parking space. It can be reported to the IoT platform through NB-IoT wireless transmission mode. The data can be received, decoded and stored by the IoT platform. Users can use the parking lock to monitor the real-time status of the parking space by APP, and can issue control commands through the APP to lock or unlock the parking space. KEYWORDS：Narrow-band Internet of Things; NB-IoT; Parking Lock; Single Chip Microcomputer; STM32F103C8T6; Electronic Lock; Ultrasound. 目录 TOC \o 1-3 \h \z \u 摘要 ii ABSTRACT iii 1 绪论 1 1.1 课题研究背景及意义 1 1.2国内外研究现状 1 1.2.1基于NB-IoT技术的车位锁系统的国外研究现状 1 1.3 本论文研究内容和结构安排 2 2系统设计 4 2.1 功能需求分析 4 2.2 系统总体概述 4 2.3 系统硬件设计 5 2.4系统软件设计 6 2.5 创新点 6 3基于NB-IoT的车位锁感知终端的设计 8 3.1 基于NB-IoT车位锁感知终端总体设计概述 8 3.2 电源模块的设计 8 3.2.1 电源电路的概述