CN203025565U

CN203025565U - Automatic takeoff tracking system

Info

Publication number: CN203025565U
Application number: CN 201220680072
Authority: CN
Inventors: 齐叶庭
Original assignee: Jiangsu University
Current assignee: Jiangsu University
Priority date: 2012-12-11
Filing date: 2012-12-11
Publication date: 2013-06-26
Anticipated expiration: 2022-12-11

Abstract

The utility model discloses an automatic takeoff tracking system. The tracking system comprises a camera module, a first communication module, a second communication module, a storage module and a central control module, wherein the camera module is electrically connected with the first communication module; the first communication module communicates with the second communication module; both the second communication module and the storage module are electrically connected with the central control module; and an algorithm for calculating the coordinates of an area in which an airplane occurs at a next time point is stored in the storage module. As the algorithm for calculating the coordinates of the area in which the airplane occurs at the next time point is stored in the storage module, the search range of video frames can be narrowed by means of predicting the area in which the airplane occurs at the next time point in a video, so that the search time of pattern recognition can be greatly shortened and the instantaneity of the system is enhanced remarkably.

Description

A kind of automatic tracking system of taking off

Technical field

The utility model relates to a kind of automatic tracking system of taking off.

Background technology

In order to allow interested party (as the terminal managerial personnel) in time understand the situation of taking off and landing of aircraft, present method is the situation of taking off by the automatic tracking aircraft of camera, when then in frame of video, certain aircraft being identified.The problem of this method maximum is exactly the search that is aircraft, if whole frame of video is searched for, thus the excessive real-time that reduces system of system overhead, and may search for unsuccessfully because of long causing of search time.

The utility model content

Technical problem to be solved in the utility model is to provide a kind of automatic tracking system of taking off, and the search time of greatly reducing pattern-recognition, greatly improves the real-time of system.

In order to solve the problems of the technologies described above, technical scheme provided by the utility model is: a kind of automatic tracking system of taking off comprises photographing module, first communication module, second communication module, memory module and Central Control Module; Described photographing module is electrically connected to first communication module; Described first communication module is communicated by letter with second communication module; Described second communication module and memory module all are electrically connected to Central Control Module; Store the algorithm of the area coordinate of the next time point appearance of prediction aircraft in described memory module.

Described photographing module is monopod video camera.

After having adopted technique scheme, the utlity model has following beneficial effect: the algorithm that stores the area coordinate of the next time point appearance of prediction aircraft in memory module of the present utility model, zone by prediction aircraft next point in video, dwindle the hunting zone of frame of video, thereby greatly reduce the search time of pattern-recognition, greatly improve the real-time of system.

Description of drawings

Content of the present utility model is easier to be expressly understood in order to make, and the below is described in further detail the utility model, wherein according to specific embodiment also by reference to the accompanying drawings

Fig. 1 is theory diagram of the present utility model.

Label in accompanying drawing is:

Photographing module 1, first communication module 2, second communication module 3, memory module 4, Central Control Module 5.

Embodiment

(embodiment 1)

See Fig. 1, the present embodiment take off automatic tracking system, comprise photographing module 1, first communication module 2, second communication module 3, memory module 4 and Central Control Module 5.

Photographing module 1 is electrically connected to first communication module 2.Photographing module 1 is monopod video camera.First communication module 2 is communicated by letter with second communication module 3.Second communication module 3 and memory module 4 all are electrically connected to Central Control Module 5.Store the algorithm of the area coordinate of the next time point appearance of prediction aircraft in memory module 4.

The algorithm of the area coordinate that in memory module 4, the next time point of the prediction aircraft of storage occurs specifically comprises the following steps:

1., monopod video camera aims at the runway take off, and after recognizing aircraft, drives The Cloud Terrace, makes the aircraft image be in the center of video, is (x0, y0) with this absolute coordinates of tense marker;

2., sample and identify the aircraft pattern with the time interval of t1, and the coordinate that identifies lower two points be respectively (x1, y1), (x2, y2);

3., determine the coordinate (x0, y0) of three points in given plane, (x1, y1), (x2, y2), and First Boundary Condition is natural boundary conditions;

4., the expression formula that sets out curvilinear function is S (x), by known conditions, asks successively S'(x), S " (x); according to the continuity of the second derivative of splines, list system of equations S " (xi-0)=S " (xi+0), i=1; 2 ..., n-1;

5., draw n-1 equation by n-1 unknown number, solve SPL function S(x) analytic expression;

6., with same time interval t1 sample video, the 4th of occurring of aircraft name a person for a particular job in curve S (x) upper or curve S (x) near certain a bit, obtain x3 by the speed that time interval t1 and camera move, y3=S (x3), drive The Cloud Terrace, make the corresponding position of centrally aligned point (x3, S (x3)) of camera;

7., begin the search plane image in the central area of image, after identifying the aircraft image, this point coordinate of mark is (x3 ', y3 '), the trajectory coordinates (x3, y3) in new database more simultaneously, and make x3=x3 ', y4=y3 ';

8., by point (x1, y1), (x2, y2), (x3, y3) repeating step are 3. to step process 7., until aircraft takes off fully.

The automatic tracking system of taking off of the present embodiment is passed through three known points, then use interpolation algorithm, the interval flight curve of match aircraft, thereby the zone of prediction aircraft next point in video, dwindle the hunting zone of frame of video, thereby greatly reduce the search time of pattern-recognition, greatly improve the real-time of system.

Above-described specific embodiment; the purpose of this utility model, technical scheme and beneficial effect are further described; institute is understood that; the above is only specific embodiment of the utility model; be not limited to the utility model; all within spirit of the present utility model and principle, any modification of making, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.

Claims

1. take off automatic tracking system for one kind, it is characterized in that: comprise photographing module (1), first communication module (2), second communication module (3), memory module (4) and Central Control Module (5); Described photographing module (1) is electrically connected to first communication module (2); Described first communication module (2) is communicated by letter with second communication module (3); Described second communication module (3) and memory module (4) all are electrically connected to Central Control Module (5); Store the algorithm of the area coordinate of the next time point appearance of prediction aircraft in described memory module (4).

2. a kind of automatic tracking system of taking off according to claim 1, it is characterized in that: described photographing module (1) is monopod video camera.