FIELD: emergency alarm.
SUBSTANCE: invention is related to methods and systems determining position by comparison of several found bearing taken in one system of coordinates, specifically, to procedures testing condition of protected objects, both mobile and immobile. Technique diminishes time of search for mobile protected object. Final position of mobile object emitting alarm signal is found by more exact bearings 
on it from N direction finders which are later computed by formula 
where j = 1,…N; i = 1,…S; S is immobile protected objects nearest to mobile object; 
are errors of bearings; 
and 
are true bearings by known coordinates and by examined signal of test of i-th immobile object from j-th direction finder; 
is weight coefficient of error.
EFFECT: enhanced precision of location of position is provided thanks to due account of bearing errors.
4 cl, 6 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| WAY TO CONTROL STATE OF GUARDED OBJECT | 2002 |
|
RU2221279C1 |
| METHOD OF CONTROLLING GUARDED OBJECTS | 2008 |
|
RU2370824C1 |
| CONTROL METHOD AND DEVICE OF STATE OF GUARDED OBJECT | 2009 |
|
RU2419162C1 |
| CONTROL METHOD AND DEVICE OF GUARDED OBJECT STATE | 2011 |
|
RU2469408C1 |
| MOVABLE AND STATIONARY OBJECTS COMPLEX SECURITY METHOD | 2000 |
|
RU2159190C1 |
| METHOD OF SEARCH AND INTERCEPTION OF HI-JACKED VEHICLE | 2003 |
|
RU2228274C1 |
| METHOD FOR DETECTION OF COORDINATES OF MOBILE OBJECTS AND DEVICE WHICH IMPLEMENTS SAID METHOD | 1995 |
|
RU2106694C1 |
| METHOD FOR CAR ALARM PROTECTION | 1996 |
|
RU2110845C1 |
| HIGH-JACKED CAR RADIO SEARCH METHOD | 2006 |
|
RU2320504C1 |
| INFORMATION-NAVIGATION SYSTEM FOR INTERCEPTING HI-JACKED VEHICLES | 2005 |
|
RU2266217C1 |
