Construction energy consumption analysis method and construction energy consumption analysis system based on BP neural network

The invention discloses a construction energy consumption analysis method and a construction energy consumption analysis system based on a BP neural network. The method is characterized in that input output vector quantity can be determined according to predetermined construction energy consumption type; a BP neural network model can be constructed according to the input output vector quantity; the established BP neutral network model can be trained by inputting a training sample; the energy consumption index data requiring the analysis can be input in the trained BP model for the processing and the analysis; and the data restoration of the output data of the neutral network can be carried out. The system comprises an energy saving potential quantification module, a data preprocessing module, a BP network analysis module, a data restoration module, a configuration management module, and a log recording module. The processing and the analysis of the construction energy consumption index data can be realized quickly and accurately, and therefore the unreasonable links during the construction energy use process can be acquired, and then the construction manager and even the common user lack of professional knowledge can be aware of the construction energy consumption current condition and the energy saving improvement measures.