GPS-based parking time duration algorithm

The invention discloses a GPS-based parking time duration algorithm, and the algorithm comprises the following steps: A, associating a GPS positioning device with a corresponding logistics vehicle, and storing the association relation; B, recording the latitude and longitude of the positioning point and time when a GPS positioning point returned by a certain device is received if the GPS positioning point of the device is not received before; C, calculating the distance between the two points; D, setting a parking time duration threshold for determination. The algorithm can achieve the accurate and timely management of the in-transit parking conditions of a lorry through a cheap GPS means. The algorithm instantly gives an alarm when the parking time duration of the vehicle exceeds the setthreshold. After the vehicle starts to move, the algorithm switches to the determination of a next parking period. The whole recognition process is fully automatic, and does not need manual intervention. 本发明公开了种基于GPS的驻停时长算法，包