The invention relates to a method for detecting retention
timeout of a positioned target, and the method specifically comprises the steps: 1, setting an initial coordinate of a circle center P as (0, 0); 2, the
server receives the position information of the positioner to obtain the coordinates (X, Y) of the positioner; 3, judging whether the coordinate of the circle center P is (0, 0), if so, turning to 4, otherwise, turning to 5; 4, taking the coordinate (X, Y) as the coordinate of the circle center P, reading the
current time, recording the
current time as time T0, and turning to 2; 5, judging whether the distance between the coordinates (X, Y) and the circle center P is smaller than a set
radius, if so, turning to 6, otherwise, turning to 4; 6, judging whether the
time difference between the
current time and the time T0 is greater than a set
time difference, if so, turning to 7, otherwise, turning to 2; 7, the
server outputs a positioning target retention
timeout alarm signal to the application terminal, and then the step 2 is executed; the method is simple, convenient and rapid, and can detect the retention
timeout of the positioning target in real time.