FIELD: guarding. SUBSTANCE: device has emitter, optical splitter, two deflectors, deflector drive, two pairs of identical spherical reflectors, two receivers of emission, information processing and access unit. Device operates by means of generation of invisible fence for detection using said elements. Said fence consists of major optical axes of two pairs of spherical reflectors. Said axes are intersected at specific angle so that three pieces for intruder detection are provided: central, left and right ones. When intruder crosses these fence, emission detectors display this on information board. EFFECT: increased precision of intrusion area. 1 tbl 2 dwg
| Title | Year | Author | Number |
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