FIELD: monitoring systems.
SUBSTANCE: invention relates to the field of security monitoring, namely to signaling control of the point of convergence of three roads into one by two linear radio wave detection means (DM), when it is required to determine all directions of the intruder. In order to achieve technical result, deployment of three roads in one two DM is carried out at the point of convergence of useful signal with different depth and modulation sign in Rx of each facility at DZ of intruder: a signal in the form of a single negative ejection of a large modulation depth when the intruder crosses the DZ near the Rx (Tx) or a signal in the form of a sequence of alternating positive and negative low modulation depths at the intersection of the DZ center; arrangement of detection means so that the DZ of each of them crosses three converging roads; DZ of the first facility crosses two adjacent roads by its middle (±10 meters), and the other road is a section near the Rx or Tx (up to 10 meters); DZ of second facility crosses one of roads with its middle (±10 meters), and two other roads – sections near the Rx and Tx (up to 10 meters); sending receivers of means to an information collection and processing system (ICPS) of an alarm signal with indication of a facility number and a threshold unit which registered a useful signal; providing reception of alarm signals from receivers of ICPS facilities; application in ICPS of the algorithm determining the direction of movement of the violator through the point of convergence of three roads into the one in a sequence of two or four alarm signals containing information on the number of the issued alarm signal and the threshold unit which registered the useful signal. Method includes a preparatory stage with deployment of the detection means according to the selected detection means scheme and the main stage, which starts with the intruder crossing the one of the DZ means and ends with determining the direction of its movement.
EFFECT: possibility of determining the direction of intruder movement through the point of convergence of three roads into one using minimum amount of DM.
1 cl, 3 dwg
