关键词: 信息感知, 多源信息, 感知技术, 堰塞湖

Abstract: Information acquisition and collection for barrier lakes is reflected as multi-source and heterogeneous characteristics due to differences in acquisition methods. At present, with the development of the IoT technology and intelligent analysis technology, the information acquisition and collection method of barrier lakes is changing towards the information thorough perception gradually. Based on this cognition of the situation of the barrier lake analysis and disposal, the basic connotation, information content, information classification, perception technology and the problems and inadequacies in this process are studied deeply. The explication and standardization methods for the information acquisition ways and processes are explored, it is believed to solve the problems of non-standard, incomplete, shallow and poor integration，which will provide basic basis for risk assessment and disposal of the barrier lake. The results will provide important reference value for emergency disposal and integrated management of barrier lakes in the future.

Key words: information perception, multi-source information；perception technology； barrier lake