Patent ID: 10907970

Abstract:
A method of determining the unreliability of a location determination of a device knowing at least the prior determined location and time of determining the location of the device is described. There is a need to determine a first location of the device and a second location of the device, and if the second location of the device has at least one of the group of characteristics of the device being, the speed; the distance difference between the first location and the second location of the device; the acceleration of the device; the bearing of the path of the device then determining whether the second location determination of the device is unreliable, is achieved by checking if one or more of the following conditions are true: the speed of the device at the second location is greater than a predetermined speed; the distance difference between the first location and the second location of the device is greater than a predetermined distance; the acceleration of the device is greater than a predetermined the rate of change of the speed between the first location and the second location of the device; the difference in, the bearing of the path of the device between the prior location and the first location, and the bearing of the path of the device between first location and the second location, is greater than a predetermined angle in any plane; or the time period, between the determination of the first location of the device and the determination of the second location of the device, is greater than a predetermined period.