SYSTEM FOR DETECTING UNAUTHORISED USE OF PORTABLE ELECTRONIC DEVICES Russian patent published in 2014 - IPC G07C1/10 A61B5/02 

FIELD: physics; control.

SUBSTANCE: invention relates to recording time spent by a person, specifically to monitoring mobile workers in companies with a large staff and many branches and separate subdivisions. Biological information on pulse waves of all workers in the system from their sensors 1 is transmitted to a base terminal 2 and signals from all sensors 1 at certain moments in time are compared with each other in a comparison unit 3. If no matches of information from the sensors 1 are found, the comparison unit outputs a signal to a display unit 4, which indicates the number of sensors 1 which matches the number of workers in the system. If a complete match or other link between signals from two or more sensors 1 is detected, then said sensors are on the body of one person. In that case, the comparison unit 3 outputs a signal to a display unit 5, which displays unauthorised use of specific sensors by a certain worker in the system.

EFFECT: detecting unauthorised use of portable electronic devices when monitoring the number of workers and honest discharge of duties.

2 cl, 1 dwg