METHOD OF SECURITY MONITORING Russian patent published in 2017 - IPC G08B1/08 

FIELD: physics.

SUBSTANCE: invention can be used in the cases of using radio-wave line detection means (DM) for signalling control of two nearby lying roads. The method consists of controlling two adjacent roads by two DMs deployed in two directions across these roads, so that on one of the roads their detection zones (DZ) touch each other without crossing the axes; the distance between the DZ axes on the other road was not less than twice the distance travelled by the violator with the maximum possible speed for a given area in the time required for the DM to go from the alarm mode to the standby mode after the violator left the DZ, anxiety when a violator moves along one of the roads; application of an algorithm that determines the direction of the violator's arrival in the order of the arrival of alarm signals from the DM and the presence or absence of a time interval in which both means are in alarm mode. The method includes a preparatory stage with the deployment of two DM under the developed scheme and the main stage, including the detection of an intruder and the formation of an output about the direction of its movement.

EFFECT: obtaining the possibility of determining the direction of motion of a detected intruder moving along one of two adjacent roads, using only two detection means.

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