Design of Intelligent Node in LonWorks Fieldbus Technology
Sun Zhitao · Dianzi qijian · 2008
In the LonWorks fieldbus technology,Processing capacity of Neuron chip is relatively weaker.In order to enhance the handling capacity of nodes,adopting ARM7 microprocessor as the controller and making the Neuron chip as communication coprocessor,a host-based intelligent node is constituted.Combining the central air-conditioning system as an example,a method is given to realize the intelligent node hardware and the software.In the specific application,the use of ARM microprocessor and ShortStack technology simplifies the nodes of the peripheral circuit and removes the Neuron chips from the program of application control,and improves the data processing capability of nodes.