TEST OBJECT FOR TESTING RECONNAISSANCE AIRCRAFT

Abstract

The utility model relates to devices for testing reconnaissance aircraft. A test object for testing reconnaissance aircraft is characterized in that it consists of a robotic ground transport platform including a circular base capable of rotation through 360°, on which a target chart is placed equidistantly at the edges, wherein: the diameter of the platform base is greater than the diagonal of the target chart, the platform base consists of an upper, middle and lower sections, a lifting mechanism is built into the base of the middle section at the bottom and the lower section at the top, connected between the middle and lower sections, a mechanism for changing the angular position is built into the base of the middle section at the top and the upper section at the bottom, the mechanism for changing the angular position and the rotating mechanism are designed to ensure the possibility of fixing the position, the middle and lower sections are equipped with a mechanism for leveling relative to the horizon,The lifting mechanism is telescopic. The base of the upper section is equipped with equally spaced mounts for securing the line target. The corners of the line target are equipped with snap hooks with an automatic locking coupling. The line target is equipped with sensors for measuring ground illumination and air humidity. The technical result achieved is to improve the accuracy of linear resolution assessment of the aircraft's optical-electronic systems by ensuring the required slant range to the test object and aerial survey altitude.

Description

[0001] The utility model relates to devices for testing reconnaissance aircraft.

[0002] A test object for determining the linear resolution on the ground of optical-electronic systems is known from the prior art (patent for invention RU No. 2845333), consisting of a rotating platform at a course of 360° and a line target placed on it with the possibility of deviation in pitch of 0....89°, which is a dark canvas made of inextensible rubberized fabric with applied absolutely white lines, and the target consists of a set of 5 square line groups, each group has 3 parallel lines of the same length and width, the ratio of the length and width of each line is 5:1, with the width of the lines in the sets of targets of 0.3; 0.4; 0.5; 0.6; 0.7 m, the groups of lines are sequentially arranged with alignment along the edge of the canvas, and the canvas is equipped with a radio frequency identification tag.

[0003] The disadvantage of this technical solution is the low accuracy of determining the linear resolution on the ground of optical-electronic systems due to the need to maintain the slant range to the test object and the height of the aerial survey.

[0004] The technical objective of the claimed utility model is to expand the arsenal of test objects for testing reconnaissance aircraft by creating a mobile test object that ensures the change, installation and fixation of the spatial position of the stroke target.

[0005] The solution to the stated problem is ensured due to the fact that the test object for testing reconnaissance aircraft is characterized in that it consists of a robotic ground transport platform including a round base with the ability to rotate 360°, on which a dashed target is placed at the edges equidistant from each other, wherein: the diameter of the platform base is greater than the diagonal of the dashed target, the base consists of an upper, middle and lower sections, a lifting mechanism is built into the base of the middle section below and the lower section above, connected between the middle and lower sections, a mechanism for changing the angular position is built into the base of the middle section above and the upper section below, the mechanism for changing the angular position and the rotating mechanism are designed to ensure the ability to fix the position, the lifting mechanism is made telescopic, on the base of the upper section at the edges equidistant from each other there are fasteners for fixing the dashed target,The corners of the line of the line drawing are equipped with carabiners with a clutch with automatic locking.

[0006] The technical result achieved by the combination of features of the claimed device is an increase in the accuracy of positioning the line target in a given spatial position during testing of reconnaissance aircraft and an increase in the accuracy of the obtained spatial characteristics of the linear resolution on the ground.

[0007] The components of the claimed technical solution are known from the prior art:

[0008] The robotic transport platform can be made according to the technical solution set out in the invention patent RU 2701592 C1;

[0009] The locking mechanism can be implemented in accordance with the technical solution set out in the patent for utility model RU No. 2776 (a typical solution used in rotary blackboards);

[0010] the platform base with a mechanical rotating mechanism can be made according to the technical solution set out in the patent for utility model RU No. 215174 or in the patent for invention RU No. 2845333;

[0011] The stroke pattern of the peace can be made according to the technical solution set out in the patent for industrial design RU No. 145729 or in the patent for invention RU No. 2845333.

[0012] Testing of aerial reconnaissance systems involves the use of the declared technical solution for its detection (recording) and determination of the quality of recognition by aerial reconnaissance systems installed on aircraft when flying over an object (in the area of ​​its location) and conducting aerial reconnaissance at various altitudes and flight speeds, in various directions, under various weather conditions, at different times of day and year.

[0013] The line chart is a sheet of flexible black material that contains sets of horizontal and vertical groups of white lines of varying sizes on a black background.

[0014] When making a length structure, the diameter of the upper section is chosen to be larger than the diagonal of the line target (so that the line target fits on the base of the upper section).

[0015] To ensure the required conditions (programs and methods) for testing the spatial orientation of the platform intended for placing the stroke target:

[0016] The platform is designed with the ability to rotate the base by 360°;

[0017] The platform base consists of upper, middle and lower sections,

[0018] A lifting mechanism is built into the base of the middle section at the bottom and the lower section at the top, connected between the middle and lower sections,

[0019] A mechanism for changing the angular position is built into the base of the middle section at the top and the upper section at the bottom,

[0020] The angular position change mechanism and the rotary mechanism are designed to ensure the possibility of position fixation.

[0021] To ensure the accuracy of the platform positioning and the accuracy of the obtained spatial characteristics, the middle and lower sections are equipped with a mechanism for leveling relative to the horizon.

[0022] To ensure the fixation of the line chart:

[0023] On the base of the upper section, at the edges, equally spaced from each other, there are fasteners for fixing the line chart,

[0024] The corners of the line drawing target are equipped with carabiners with an automatic locking clutch.

[0025] To improve the accuracy of the obtained spatial characteristics of the linear resolution on the ground, the line chart canvas is equipped with sensors for measuring the illumination on the ground and air humidity.

[0026] Ensuring reliable and stable operation of the platform requires the use of high-tech, fail-safe lifting systems. For this task, a decision was made to use a telescopic mechanism for the lifting unit. The telescopic mechanism provides a wide range of working heights and reach while maintaining a high degree of stability and control. The telescopic design allows for sequential expansion and contraction of the platform base.

[0027] The test is performed on reconnaissance aircraft equipped with onboard optoelectronic systems (OES). Often, to determine the required spatial characteristics of the target pattern, the aircraft with OES must select the flight altitude.

[0028] Using the platform's base's elevation, rotation, and tilt angle, the required spatial orientation of the test object is determined and recorded. Afterward, reconnaissance aircraft are tested (possibly over several days or weeks), and upon completion, the robotic ground transport platform autonomously returns to its designated location.

[0029] Images are obtained in digital form of one angle and scale for a given slant range and aerial photography altitude, in a plane perpendicular to the optical axis of the optical-electronic system, using line targets; when receiving a target in the center of the image field, the linear resolution is determined, which consists of determining the minimum distance between adjacent white lines of the target of the recognized group of lines.

Claims

1. A test object for testing reconnaissance aircraft, comprising a dashed target and a robotic ground transport platform, including a circular base, characterized in that the circular base is made with the ability to rotate through 360° and fix a given angular position and consists of an upper, middle and lower sections, a telescopic lifting mechanism is installed between the lower and middle sections, a mechanism for changing the angular position of the upper section relative to the middle section is installed between the middle and upper sections, made with the ability to fix a given angular position, the middle and lower sections are equipped with a mechanism for aligning the base of the platform relative to the horizon, a dashed target is placed on the upper section, wherein the diameter of the upper section is greater than the diagonal of the dashed target, and fasteners for fixing the web of the dashed target are placed at equal distances from each other along the edges of the upper section.

2. The test object according to paragraph 1, characterized in that the corners of the line target are equipped with carabiners with a clutch with automatic locking.

3. The test object according to paragraph 1, characterized in that the line target canvas is equipped with sensors for measuring illumination in the area and air humidity.

4. The test object according to paragraph 1, characterized in that the robotic ground transport platform is designed with the ability to independently return to a specified location after completion of the tests.