FIELD: security systems.
SUBSTANCE: invention relates to methods of security monitoring of the area and can be used in cases of signaling control of a road fork by a single linear radio wave detection means (DM). Method consists in deploying the DM at the fork of the three roads according to the scheme, in which its DA crosses two roads; providing a scheme for deploying a means for allocating a useful signal with different modulation depths at the receiver when the intruder crosses the DA: signal in the form of a single negative ejection of a large depth of modulation when an intruder crosses DA near the receiver or a signal in the form of a sequence of alternating positive and negative emissions of a small depth of modulation – when crossing the middle of the DA; placing the receiver at a distance of no more than 5–10 meters from one road, the transmitter at a distance equal to half the length of the DA (±10 meters) from another road; subsequent control of the road fork; the formation of an alarm signal by a large threshold block when an intruder crosses the DA near the receiver; formation of an alarm signal by blocks of small and positive thresholds when crossing the DA in the middle; transferring the receiver to a system for collecting and processing information (SCPI) of one or two alarm signals indicating the block of threshold that generated it; ensuring the reception of alarm signals from the receiver of the SCPI and accumulating them during the set time; application of the algorithm for determining the direction of the violator's movement through the fork of the three roads on the basis of comparing the data of the threshold block or the combination of blocks indicated by the detection means together with the alarm signal, with an a priori known scheme for deploying the detection means at the fork in the road. Method includes a preparatory stage with the deployment according to the established scheme of DM at the fork in the road and the main stage that begins with the crossing of the DA means and ends with the formation of an output about the direction of the violator's movement.
EFFECT: technical result consists in increasing the accuracy of determining the directions of the violator's movement detected at the fork in the road, using only one DM (two of the six directions are determined separately and four directions in pairs).
1 cl, 13 dwg
