The Smart Home Of Data Acquisition And Control System Based On ZigBee Technology

With the tendency of information technology, by the trend of the Internet of Things,it becomes a rising research field that Smart Home as a typical application of the Internet of Things can provide a safety,comfortable and environmental life. It is the key that acquisition and transmission of various devices information make the system operate normally for the Smart Home control system. The sensor is the cornerstone as the pyramid to the Internert of Things, therefore the focus of this paper is Smart home of acquisition and control system based on ZigBee technology.It is easy to network and maintain a low power and cost Zigbee wireless sensor network for home automation. The research focuses on Smart home of data acquisition and remote control Integrating data acquisition, automatic control, sensor, wireless communication, multi-disciplinary knowledge,used by the following methods:The system includes data acquisition modules and ZigBee communication module. Data acquisition module has five parts including temperature, humidity and light intensity collecting, intelligence lighting system, electric curtain control, LED dimming modules and emergency help button. ZigBee module including battery power supply circuit,coordinator node and terminal node layout, RS-232 serial circuit and USB circuit.The system collects various data and wirelessly transmit the information to the coordinator, through the serial port to conmmunicate with the upper computer. The upper software programming using Visual Basic 6.0 accomplishes the function of the node state in the network including the operational status displays,remote control and data-saving.Besides it is using RF remote control to relize human-computer interaction.In the ZigBee networking aspects,it explains the function of all layers and the operational mechanism of the Z-Stack protocol stack.Considering the variety of network topologies, it construct a star networking home wireless sensor network.According to Smart Home of acquisition and control system based on ZigBee technology research, it is achieved the following results:First, for the characteristic of ZigBee, especially in low power, little data wireless transfer rate(250Kbps),smart,security,environmental,it is particularly suitable for home automation applications. In the smart home simple control and monitoring system, it has a new idea of intelligent linkage.Second, using the next generation of LED lights to replace the existing fluorescent lamps and energy-saving lamps.LED lights have many advantage such as energy saving, environmental protection, long life, small size, etc.The paper puts forward a dimming approach based on PWM scheme.Third, using the next generation of RF remote control based on RF4CE standard to replace the current infrared.The RF remote control has a high degree of freedom to operate interactively, low power consume and intelligently.So in order to improve the Smart Home acquisition and control system.It proposes the remote control design based on the RF4CE.