The Design And Implementation Of Indoor Invasion Detection System Based On WIFI CSI Information

With the development of economy,indoor invasion has received increasing attention.Indoor invasion detection has become an important measure to protect personal and property safety of family members.Based on visual detection,traditional indoor invasion detection methods usually use camera equipment,but these methods have the problems of being difficult to detect invasion in a dark environment or at a blind spot and have the risk of privacy leakage;in addition,there are some non-visual methods,including those that utilize infrared light,sound signals and wireless signals.However,the methods based on sound signals are vulnerable to the interference from surroundings,and those based on wireless signals and infrared light demand higher equipment cost to cover the entire environment.To address the problems mentioned above,this thesis designs and implements an indoor invasion detection system based on Wi Fi CSI information.The system can extract RSSI and CSI information from small and affordable equipment,and can help users to detect invasion within the premises in a non-invasive way,thereby identifying indoor invasion events without infringing users' privacy.This thesis first clarifies the development goals of the indoor invasion detection system,analyzes the functional requirements and non-functional requirements of the system,and describes each function in detail in the form of use case description.Then it analyzes the overall design of the invasion detection system,and divides the system into five modules: collection of data,analysis of data,display of result,management of account and management of equipment.It describes the logic of the main functions of each module and the detailed design of database.On this basis,the thesis introduces the specific implementation of the invasion detection system,and shows the final renderings of the system as well as the implementation code of some functions.Finally,it introduces the test of the invasion detection system to validate the functionality of the system,and evaluates the accuracy and false positives rate of the proposed invasion detection method.