The Design Of Intelligent Home Control Node Based On ZigBee Technology

In recent years, with the widespread dissemination of the concept of Internet ofThings, social informatization, family intellectualization and industrial automationfields have been developed rapidly, leading to the increasing needs of wirelesscommunications and data transmission among the public. Many wirelesscommunication protocols have been widely used here. ZigBee’s emerge marks the birthof a new short distance wireless sensor network.Its appearance arouses wild attentionimmediately. Besides, the application of this technology is extended to the design ofintelligent home furnishing.The study of smart home is chosen for this design, by the means of combing SmartHome ZigBee with embedded technologies to complete the LAN networking functionrealizations of coordinator node and terminal control node,and we can realize remoteaccess control function through the central control node as the bridging of data access.Firstly, with the combination of the characteristics of intelligent home controlsystem, this essay will analysis the feasibility of the ZigBee wireless sensor network asan intelligent home networking. STM32embedded system and ZigBee coordinatorConstitutes a smart home central control node to achieve the establishment of theoverall design of the remote control of the smart home node by using via Ethernetcommunication technology access family subnet.Secondly, this essay studies and analyzes the IEEE802.15.4/ZigBee protocolstandard, introduces the ZigBee network application development concept, and studiesthe technical knowledge of the network topology and network configuration. we useTI’s CC2530ZigBee node hardware design based on those mentioned above.Besides,main control circuit design center node uses the STM32as the master chip to buildembedded minimum system circuit design, including other peripheral circuitdesigns.They are the Ethernet card DM9000AEP,serial communication RS232andJTAG circuit.Thirdly, this thesis has designed hardware parts, corresponding to design thesoftware. We firstly study Z-Stack protocol stack ZigBee2007/PRO, and then transplant it to each function ZigBee node, so that the formation and control of home controlsubnet can be realized. The article also realizes the shift of μC/OS-II operating systemon the intelligent home control center node circuit and uses LWIP to build embeddedWEB server on this system, cooperating with the hardware design of the Ethernet card,therefore,we finally realize the remote access control function.Finally, in order to fulfill the requirement of the thesis, this essay tests every partsof ZigBee smart home control nodeAfter a joint commissioning with other parts, it can meet the needs of users, so thedesign is reasonably practicable, and basically achieve the desired goal.