RU2259539C1 - Method for examination of territory adjoining the guarded territory for exposure of localities representing a threat for its bombardment - Google Patents

Abstract

FIELD: localization of dangerous from the point of view of bombardment by snipers of the territorial points.

SUBSTANCE: the GPS-coordinates of the adjoining territory are calculated. Then, digital panoramic photographing territory is performed with a quantity of pictures ensuring its complete overlapping, and the photographing parameters are fixed. According to the photographings taken and the parameters of photographing, stereophotogrammetric reconnaissance of the adjoining territory is performed. According to the results of the reconnaissance, broken continuous horizontal lines outlining the remoteness of separate points located on the territory adjoining the guided object are applied on the obtained panoramic photographs. The adjoining territory is divided into the zones of reach of various firing means that are fit for bombardment of the guarded objective. In each zone of reach the points preferable for installation of the respective firing means for bombardment are divided. Data on remoteness and azimuth of any point of bombardment are revealed. According to GPS-coordinates of the adjoining territory, the GPS-coordinates of the points of bombardment. At least, the revealed points of bombardment and the data on their localization in the computer center of the guarded object are registered.

EFFECT: enhanced completeness and operativeness of reconnaissance.

4 cl, 1 dwg

Description

The invention relates to techniques for the localization of dangerous from the point of view of firing snipers at territorial points and is intended for use in the implementation of active protection of important public facilities, such as administrative centers, from terrorist and sabotage actions.

There is a method of determining the location of a sniper, involving the vibration sensors measuring the coordinates of the entrance and exit of a bullet on a target using a false target-trap, determining a shock pulse and calculating the coordinates of a sniper on a microprocessor to destroy it (RU 95111404 A1, F 41 J 5/00, 05.20.1997 )

There is a method of determining the location of one or more snipers, which consists in registering sounds from shots and shock waves using microphones, identifying the time difference between them and calculating the coordinates of snipers using a compass, taking into account the obtained time difference and bullet speed (US 5912862 A, G 01 S 3/808, 06/15/1999).

There is a method of exploring the territory and identifying the source of fire, based on the search for the infrared signature of a passing bullet and obtaining information about its angular position using an azimuth-controlled telescope, tracking the trajectory of a sniper bullet by a laser radar system and computer-aided calculation of the source coordinates from mirror information about the angular position of the mirror, the duration of the laser pulse and the position of the bullet mark on the detector grid (WO 00/20880 A2, G 01 S 17/02, 04/13/2000).

However, the known methods are characterized by a limited area of practical use and do not allow, in particular, to a priori determine the shelter points preferred by snipers.

Closest to the proposed one is a method of visual reconnaissance of targets on the ground, measuring the range and angular coordinates of targets, based on the use of an optical range finder and including the operation of aiming at a distant object of the lens by moving it from its original position corresponding to the installation at infinity, highlighting the range to the subject on digital indicators and the introduction of the testimony into the field of view of the operator without interrupting the process of monitoring the subject (RU 2117973 C1, G 03 13/20, 08/20/1998).

The disadvantage of this method is associated with great complexity in reconnaissance of the entire territory adjacent to the guarded object and the identification of all hazardous areas that meet the reach condition for guns.

The objective of the invention is to simplify a similar method while providing a technical result, expressed in increased completeness and efficiency of intelligence.

The problem is solved by the proposed method for examining the territory adjacent to the protected object to identify points that pose a threat of shelling, according to which

calculate the GPS coordinates of the surrounding area,

along the perimeter of the protected object, digital panoramic photographing of the surrounding area is carried out with the number of photographs ensuring its complete overlap,

capture photography settings,

according to the photographs taken and the parameters of photographing, stereophotogrammetric reconnaissance of the adjacent territory is carried out,

according to the results of reconnaissance, continuous horizontal lines are drawn on the obtained panoramic photos, outlining the remoteness of individual points located in the territory adjacent to the protected object.

divide the adjacent territory into the reach zones of various types of fire weapons suitable for firing a guarded object,

in each of the areas of reach determine the points that are preferable for the installation of appropriate fire weapons for firing,

reveal data on the distance and azimuth of any of the points of fire,

GPS coordinates of the surrounding area calculate the GPS coordinates of the firing points.

Partial essential features of the invention contribute to the solution of the problem.

As fixed parameters take base photographing and angles of rotation of the camera.

Stereophotogrammetric reconnaissance of the adjacent territory is carried out in manual or semi-automatic mode.

The mentioned reach zones are selected in a circular fashion.

The drawing shows an illustration of the implementation of the proposed method, where marked: protected (main) object 1, the adjacent territory to which is subject to reconnaissance; zone 2, lying outside a large radius (outside the reach of fire weapons); reach zone 3 of long-range guns; reach zone 4 of small arms; zone 5 of visibility with the naked eye; specific distance 6 reach; azimuths for goals 4 and 5.

When implementing the proposed method, the GPS coordinates of the territory adjacent to the protected object 1 are determined. Along the perimeter of the protected object 1, digital panoramic photographing of the surrounding area is carried out with the number of photographs ensuring its complete overlap, while recording the recording parameters, including the photographing base and camera rotation angles. According to the photographs taken and the parameters of photographing, stereophotogrammetric reconnaissance of the adjacent territory is carried out manually or semi-automatically. According to the results of reconnaissance, continuous horizontal lines (similar to relief lines on topographic maps) are drawn on the obtained panoramic photographs, outlining the remoteness of individual points located on the adjacent territory from the protected object 1. Next, the adjacent territory is divided into circular reach zones of 2-5 different types of fire means suitable for shelling a protected object. In each of the reach zones 2-5, the points that are preferable for installing the corresponding firing means for firing are determined, and data on the distance 6 and azimuth 7 of any of the firing points are detected. Using the GPS coordinates of the surrounding area, the GPS coordinates of the firing points are calculated. Register the preferred points of fire and information about their location in the computer center of the guarded object 1.

The proposed method of stereophotogrammetric localization of hazardous areas allows to obtain information about distances and angles to any points within visibility that are a real threat to the protected object 1 (direct shot of a sniper, grenade launcher or artillery system). The result of the reconnaissance is universal information specifically indicating zones 2-5 that are hazardous: panoramic photographs of the territory adjacent to the protected object 1, or aerial photographs with dangerous sections plotted, differentiated depending on their distance from the protected object 1. At the same time, they are available GPS coordinates of dangerous points.

When installing several cameras around the perimeter of the protected object 1, reconnaissance of the adjacent territory, as already indicated, can be carried out in a semi-automatic mode with documentation of its results on a computer. In this case, they use appropriate software and a mathematical model of threats with reference to the terrain and individual objects (with the determination of critical range angles, the influence of atmospheric conditions, etc.). Based on the model, the appropriate hardware base is selected (optical resolution, number of cameras, gyro requirements, etc.).

Claims (4)

1. A method of examining the territory adjacent to the protected object to identify points that pose a threat of shelling, according to which GPS coordinates of the adjacent territory are calculated, digital panoramic photographing of the adjacent territory with the number of photographs ensuring its complete overlap is made along the perimeter of the protected object, the photographing parameters are fixed, according to the photographs taken and the parameters of photographing, stereophotogrammetric reconnaissance of the adjacent territory is carried out, Broken continuous horizontal lines are drawn on the obtained panoramic photographs on the results of reconnaissance, outlining the remoteness of individual points located in the territory adjacent to the guarded object, dividing the adjacent territory into zones of reach of various types of fire weapons suitable for shelling the guarded object, in each of the reach zones determine items that are preferable for installing appropriate fire weapons for firing reveal data on the distance and azimuth of any firing points, GPS coordinates of the firing points are calculated by the GPS coordinates of the adjacent territory, the detected firing points and information about their location in the computer center of the guarded object are recorded. 2. The method according to claim 1, according to which as the fixed parameters take base photographing and camera angles of rotation. 3. The method according to claim 1, according to which stereophotogrammetric reconnaissance of the adjacent territory is carried out in manual or semi-automatic mode. 4. The method according to claim 1, according to which the said reach zones are chosen circular.