共享停车是应对汽车保有量增长导致的城市停车难题、充分利用现有停车位资源的重要举措.提出了一种基于HarmonyOS与窄带物联网(Narrow Band Internet of Things,NB-IoT)的城市共享停车体系,以HarmonyOS与NB-IoT设计共享停车融合终端、云IoT平台作为共享停车的边缘服务平台.给出了基于云IoT平台的城市共享停车服务体系的架构设计,提出了基于HarmonyOS与NB-IoT的终端标准化设计以及端云一体化开发方法.对地面拉远和地下场景下的NB-IoT的穿透覆盖性能,以及不同运行环境下的HarmonyOS系统的线程响应时间分别进行了实测与性能评估,验证了所提系统的有效性与服务性能.为不同停车设备的智能化、互联与协同提供了统一的集成管理与开放方案,为提高现有停车设施的使用效率,推动我国智慧城市交通发展和提升新型城镇化建设质量提供可行的实施路径.
Design and Performance Evaluation of Urban Shared Parking System Based on Harmony OS and NB-IoT
Shared parking is an important measure to deal with urban parking problem caused by the growth of car ownership and to make full use of existing parking space resources.An urban shared parking system based on HarmonyOS and Narrow Band Internet of Things(NB-IoT)is proposed in this research,with a shared parking integration terminal being designed using HarmonyOS and NB-IoT.Cloud IoT platform is utilized as an edge service platform for the shared parking service.The architectural design of an urban shared parking service system based on Cloud IoT platform is given,and terminal standardization design and terminal-cloud integrated development methods based on HarmonyOS and NB-IoT are proposed.Finally,the penetration coverage performance of NB-IoT in remote ground and underground scenarios as well as the thread response time under the HarmonyOS system in different environments are measured and evaluated respectively,thereby verifying the effectiveness and service performance of the proposed system.A unified integrated management and open solution for the intelligence,interconnection and collaboration of different parking equipment are provided,and a feasible implementation path to improve the efficiency of existing parking facilities is provided,therefore promoting the development of smart urban transportation in China and improve the quality of new-type urbanization construction.