Convenient monitoring method and system for swing collapse risk of skyscrapers

A swing monitoring method for skyscrapers, comprising:

• step 1, establishing a building monitoring network by using a vertically distributed three-layer three-dimensional mesh layout, and setting four monitoring points on each layer of the building monitoring network, wherein each of the four monitoring points is provided with a receiver and a data converter, the receiver is configured to receive navigation data sent by a satellite navigation system in real time, and the data converter is configured to transmit monitoring data of corresponding one of the four monitoring points to a disaster risk monitoring center;
• step 2, recording differential navigation positioning data obtained by the four monitoring points on each layer of the building monitoring network at tk moment, using differential navigation positioning data of the four monitoring points on a same layer of the building monitoring network to calculate a central coordinate and a normal vector of a monitoring plane corresponding to the same layer to thereby obtain calculated central coordinates and calculated normal vectors for three layers of the building monitoring network, and determining a maximum deviation, a maximum inclination angle and a maximum inclination azimuth angle of a building structure according to the calculated central coordinates and the calculated normal vectors;
• wherein the differential navigation positioning data by the four monitoring points on each layer of the building monitoring network at tk moment respectively are {(xi,j(tk), yi,j(tk), zi,j(tk)|i=1, 2, 3, 4;
• j=0, 1, 2}, where j represents a layer serial number for three monitoring planes of the building monitoring network from bottom to top, and i represents a serial number for the four monitoring points numbered clockwise at a j-th layer of the building monitoring network;
• and
• step 3, continuously acquiring sampling data of the building structure by the disaster risk monitoring center based on the building monitoring network, and constructing a high-fidelity fault-tolerant filter with anti-outlier effects to filter the sampling data and extract intrinsic signals, then drawing curves changing with time of the maximum deviation, the maximum inclination angle and the maximum inclination azimuth angle of the building structure according to the extracted intrinsic signals, and then judging whether there is any abnormal change in the building structure according to relevant international and domestic building safety standards, and giving an alarm and a risk response in case of abnormal circumstances, so as to realize perception and warning of a collapse risk of the building structure.