Air Conditioning Energy Consumption Monitoring System Based On Can Bus Used In Public Buildings

New technology’s development and promotion of arctecture’s energy-saving isconducive to energy saving and improve our living environment, since the reform andopening up, China’s economic develop rapidly, followed by energy depletion andenvironmental damage, but along with the city’s urbanization of china,the size ofbuilding is more and more, the consumption of energy resources increased, energyconsumption of the public building is the main energy consumption, therefore, it’s veryimportant to develop new technology of air-conditioning’s energy-saving which used inpublic buildings.The CAN bus as its advantage is widely used in building automationsystem, industrial automation system, traffic tools, instruments and apparatuses andother aspects.The topics studied energy-saving technologies of air condition used in thepublic buildings, the technologies can use CAN bus to optimize the time used by airconditioners, limiting the scope of the regulation of air condition to improve theefficiency of air conditioners and reduce human waste.This topic design the energy consumption monitoring system of air conditioningused in public buildings based on CAN bus completely and systemic,it content with theScheme design of energy-saving, the hardware design and the software design, inwhich the hardware part contains Schematic and PCB’s Design of CAN core board,CAN monitoring node and wireless node, the CAN core board contains LCD and touchscreen, the LCD screen can display temperature of individual CAN monitoring nodeand the outdoor temperature timely, through the touch screen can send commands tothe CAN monitoring nodes, then the CAN node can control the mode of airconditioning, wireless nodes can measuring the outdoor temperature and transmit thetemperature information to the CAN core board, then CAN core transmit the outdoortemperature information to the CAN node; software part contains application of theUCOS operating system, the program of MCU and application program.This topic presents a complete Scheme and use real simple to verificate andsimulate the Scheme, complete the basic technical requirements. This system allow thesoftware interface, as long as the open protocol can link the system and buildingautomation system, so the system can be a independent system and can also be used asa sub system of building automation system, the system has some practical value andreference value because of its flexible and low cost.