METHOD OF SECURITY MONITORING Russian patent published in 2018 - IPC G08B23/00 

FIELD: monitoring systems.

SUBSTANCE: present invention relates to a security monitoring method and can be used in cases of using single passive optoelectronic detector for signaling control of the road. Method consists in controlling the bending of the road by one detector, deployed on the bend of the road, taking into account the conical shape of its detection zone (DZ), so that the DZ and bend of the road intersect at two sites – narrow and wide; to ensure that the difference between the time spent by the detector in alarm mode is exceeded when crossing these two sections by the violator not less than four times, for which, according to the deployment scheme, the DZ axis crosses the road in a wide section at an angle of 20 to 30 degrees to the road; the distance between the points of intersection of the axis of the detection zone and the road is selected in the range from 70 to 80 percent of the maximum length of the detection zone; multiple transition of the detector to the alarm mode while the intruder is moving through the bend of the road, accumulation by the system of data collection and processing of alarm signals (AS) during the set time of accumulation of alarm signals; the establishment of the accumulation time of the detector based on the minimum possible speed of the intruder and the distance traveled by him between the intersections of the DZ and the road; application of an algorithm dividing incoming AS into two groups, that the delay time between the arrival of the AS in the groups is much shorter than the delay time between the groups; counting and comparing the number of AS in both groups; determination of the direction of the offender by the order of the arrival of the AS groups: group with a smaller number of ASs, a group with a large number of ASs or a group with a large number of ASs, a group with a smaller number of ASs.

EFFECT: method provides an opportunity to determine the direction of motion of the detected intruder using only one detector.

1 cl, 11 dwg