System and method for tracking people

摘要

The system and method for tracking people provides for the tracking of individuals in large crowds, such as the tracking of individual pilgrims during the Hajj pilgrimage in Mecca. A polling request is initially transmitted from a tracking station to a mobile device associated with a particular person of interest. Upon receipt of the polling request, a location signal is transmitted back to the tracking station. The location signal includes positional and time data representative of the location of the mobile device at the time of transmission. Additionally, a supplemental location signal is also transmitted to the tracking station, the supplemental location signal being representative of the location of the mobile device when the mobile device is detected within proximity of a fixed sensor. A visual display image of the path of the person of interest is then displayed at the tracking station overlaid on a geographic map.

主权项

1. A method of tracking people, comprising the steps of:
recording a digital validation key on a first portable memory device; transferring the digital validation key to a second portable memory device, wherein the digital validation key is valid only if transferred to the second portable memory device within a first pre-set time period; transferring the digital validation key to a mobile device associated with a particular person of interest, wherein the digital validation key is valid only if transferred to the mobile device from the second portable memory device within a second pre-set time period; transmitting a polling request to the mobile device associated with the particular person of interest; in response to the polling request, receiving a location signal including positional data and time data representative of the location of the mobile device at the time of transmission of the location signal by the mobile device; receiving a supplemental location signal from a fixed sensor, the supplemental signal including supplemental positional data and supplemental time data representative of the location of the mobile device when the mobile device is detected within proximity of a fixed sensor; recording the positional and time data and the supplemental positional and supplemental time data in a database as a set of geographic positions and corresponding times associated with a path of the person of interest; generating a visual display image of the path of the person of interest overlaid on a geographic map; and transmitting the positional and time data and the supplemental positional and supplemental time data to a single guide of a group of people, the group of people including the person of interest.