【摘要】 针对智能大厦中央空调集控系统的可靠性和经济性问题,提出了一种基于低压电力载波和Modbus的方案。该方案基于ARM微处理器SEP4020,设计了一种结构简单、性价比高、扩充灵活的控制系统。该文提供了系统总体设计方案,详细说明其中的硬件与软件设计要点,阐明系统的应用特点和应用前景。更多还原

【Abstract】 In view of the reliability and efficiency of the intelligent building air-condition control system,a project of application based on PLCC and Modbus is proposed.It has been designed a simple structure,cost-effective,flexible expansion control system used SEP4020 as its main control chip.The paper offers the system overall design plan,explains the hardware and software design consideration in detail and illuminates the application feature and foreground of the system.更多还原