With the rapid development of science and technology,the demands for intelligent products are increasing gradually.Currently,there are three directions of smart home development,namely,constructing an efficient management system for residential facilities and family schedules;ensuring home safety,convenience,comfort,and artistry;achieving an environmentally friendly and energy-saving living environment.How to integrate home-related facilities with integrated wiring technology,network communication technology,security technology,automatic control technology,audio,and video technology,has become the primary issue of the smart home.To overcome this problem,a multi-WAN port 4G smart home Internet of Things PoE gateway scheme was designed,which ensures the high-reliability of the smart home Internet of Things.Based on the IEEE802.3af/at/bt PoE power supply hardware platform,the gateway scheme supports standard technical protocols such as ISM-433 MHz,ZigBee,NFC,Lora,Bluetooth,WiFi,and 4G.Besides,the remote control management of mobile devices and software algorithms for one-key near-field authentication of terminal devices are also supported.In the design process,it is necessary to consider the integrity of the overall software and hardware platforms,and also take into account the different needs of each user.The completed subsystems have perfect linkage,each subsystem not only can operate independently,but also can form a multi-functional,all-round,integrated smart home Internet of Things system in a unified way.To build a high-reliability and stable integrated gateway platform,more than 30 tests and signal integrity analysis are performed on the hardware of the platform.The experimental results indicate that the gateway of intelligent home Internet of Things can operate stably for a long time without running offline. |