Intelligent Floor Heating Control System Based On Wireless Networking Technology

With the improvement of economic conditions,more and more families use water heating system.At present,the water and floor heating system mostly adopts wired form and centralized manual control.Such a system cannot adjust the temperature of each room and cannot operate remotely,resulting in waste of energy consumption and decrease of comfortable experience.The system does not integrate leak detection equipment,once the floor heating leakage will cause huge losses;At the same time,the installation and maintenance cost of the cable system is high,and the construction difficulty is large.This paper designs an intelligent floor heating control system based on wireless AD hoc network technology,which has the characteristics of comfort,energy saving and safety.Through LoRa wireless networking technology independently developed,central controller,thermostat,wireless valve,leakage detector and other equipment are connected to achieve linkage control.Cloud platform is designed,APP operation software is developed and remote monitoring of the system is realized.Through this floor heating control system,the automatic thermostatic control of each room can be realized.The floor heating system can be turned on remotely in advance,which makes the room reach the setting temperature in advance and improves the user experience.The energy waste is reduced by the real-time temperature adjustment of the rooms.The wireless connection between devices reduces the installation,maintenance cost and difBculty of the system.Wireless leakage detection system makes the use of floor heating system more secure.According to the floor heating system equipment wireless communication the application requirement of high reliability,low power consumption,using LoRa spread spectrum modulation technology and a star topology,reconstructed fromthe data link layer,network layer,transport layer to application layer of the wireless transport protocol,the design including channel detection and retransmission,access authentication failure,cross-layer collaborative transmission,a variety of network communication mechanism,ensure the reliability of the network.After testing,the communication delay of this network is less than 0.1 s9 and the indoor communication distance can reach 80 meterss meeting the requirements of the design index.For floor heating system in leakage hidden trouble and its low power needs,designs the low-power leakage detection and control subsystem,slack node detect leaks sends wireless signals feed valve,water valve closed in time,to cut off the water,to avoid further loss,at the same time,through the central controller,leaking information uploaded to the server,and then notice to the user.An adaptive power algorithm is designed to dynamically adjust the transmitted power of the leaking node according to the link state so as to reduce the power consumption of the equipment.Finally,the measured results show that standby power consumption of the leakage node can be reduced to 1.4uA.