智能家居网关与云服务器数据同步协议的研究

Research on Data Synchronization Protocol between Intelligent Home Gateway and Cloud Server

在智能家居环境中,智能家居网关负责直接管理智能家庭设备,并且存储个性化的设备数据和情景模式数据。由于单个用户的智能家居数据是分散存储在智能家居网关中的,这给管理人员的维护与管理带来了诸多不便。因此,基于云技术研究了一套智能家居网关管理系统,实现对用户分散的智能家居数据的统一管理,从而提高管理效率。管理系统提供的功能主要有:对所有用户智能家居网关数据的集中存储、对所有用户智能家居网关数据的定时备份、对单个用户智能家居网关数据的管理、对单个用户智能家居网关数据的选择恢复。而这些功能的实现都基于智能家居网关与云服务器之间的数据同步技术。由于数据存储需求的不同以及硬件设备的限制,云服务器与智能家居网关之间需要使用异构的数据库。因此,针对保证异构数据库之间快速的数据同步问题,在分析与借鉴现有的数据同步协议后,提出了一套精简而实用的数据同步协议,用于解决云服务器与智能家居网关之间异构数据库的增量数据同步问题。

In the intelligent appliances,the smart home gateway is responsible for management of smart home devices and storage of per-sonalized device data and scenario mode data. But the data of intelligent appliance is dispersed in gateways,which brings inconvenienceto the maintenance and management of administrators. Therefore,based on cloud technology,we research and design a set of intelligenthome gateway management system to realize the unified management of users’ scattered intelligent home. The management system main-ly has the functions including centralized storage and regular backup of smart home gateway data from all users and management and re-covery of smart home gateway data from a single user. The implementation of these functions are based on data synchronization technolo-gy between smart home gateway and cloud server. Due to the different data storage requirements and the limitations of hardware devices,heterogeneous databases need to be used between the cloud server and the smart home gateway. So,in view of guaranteeing fast data syn-chronization between heterogeneous database,after analysis and reference of the existing data synchronization protocol,we put forward aset of concise and practical data synchronization protocol to solve the problem of incremental data synchronization for heterogeneous data-base between cloud server and intelligent home gateway.