JP2005011160A - Air traffic control system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide rapid and more reliable control information to an air traffic controller. <P>SOLUTION: This air traffic control system has: a signal processing part detecting position information about a target object from observation data observed by an observation means; a first following processing part inputted with the position information about the target object in each observation period, detected by the signal processing part, and performing a following process about the target object from the latest position information about the target object and the position information about the target object which has been detected last time; and a second following processing part inputted with the position information about the target object in each observation period, and performing a following process about the target object from the latest position information about the target object and a plurality of pieces of position information about the target object, detected in the past. A processing result of the first following processing part is displayed on a display part, while a processing result of the second following processing part is inputted to the first following processing part to correct the processing result of the first following processing part by the processing result. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an air traffic control system that performs tracking processing of a target from position information of the target obtained via a radar apparatus, displays the processing result on a display unit, and supports a control operation of a controller.
[0002]
[Prior art]
Conventionally, position information of an aircraft or the like (hereinafter referred to as a target) obtained through a radar device is controlled by a control display device installed in a control facility after being subjected to tracking processing by an information processing device. Displayed as information. Since each controller performs various control tasks with reference to such control information, it is desirable that the control information is updated at a constant period according to the observation period of the radar apparatus. However, if the number of data handled becomes large and the communication capacity overflows, it becomes difficult to display these control information within the observation period of the radar device, for example, prioritizing each track data after the tracking process, It has been proposed that the position of the track data having a high priority is corrected with priority and displayed on the control display device.
[0003]
[Patent Document 1]
JP 2001-338400 A (page 3 to page 4, FIGS. 1 to 3)
[0004]
[Problems to be solved by the invention]
However, since the conventional air traffic control system was configured as described above, it is possible to display highly reliable control information for track data with high priority, but reliability for track data with low priority. Only low control information can be displayed, and when the number of targets increases, there is a problem that highly reliable control information cannot be displayed except for a small number of targets. In addition, since the same tracking process is performed on the position information of all the target objects, for example, when an advanced tracking process method is adopted, the processing load of the information processing apparatus increases and the wake data However, it takes a long time to acquire the control information, and it is possible to obtain highly reliable control information. On the other hand, there is a problem in that the number of targets from which such highly reliable control information can be obtained further decreases.
[0005]
In recent years, the safety of aircraft has been greatly improved by support from the ground by radar and control systems, but the number of flights tends to increase as the use of aircraft increases. As the number of flights on an aircraft increases, it becomes necessary to accurately grasp the positional relationship between each aircraft, and in response to such an increase in the number of flights, rapid and reliable control information is provided for each target. It is necessary to do.
[0006]
The present invention has been made to solve the above-described problems, and it is possible to obtain highly reliable control information for each target by shortening the observation period of observation means such as a radar device. The control information of each target according to the observation cycle of the shortened observation means can be displayed on the display device, and the control information can be provided to the controller quickly and with higher reliability performance. The purpose is to obtain a simple air traffic control system.
[0007]
[Means for Solving the Problems]
An air traffic control system according to a first aspect of the present invention includes a signal processing unit that detects position information of a target from observation data observed by observation means, and an observation period of the target detected by the signal processing unit. Position information is input, a first tracking processing unit that performs tracking processing on the target from the latest position information of the target and the previously detected position information of the target, and for each observation period of the target A second tracking processing unit that performs a tracking process on the target from the latest position information of the target and a plurality of position information of the target detected in the past. The processing result of one tracking processing unit is displayed on the display unit, while the processing result of the second tracking processing unit is input to the first tracking processing unit, and the processing result of the first tracking processing unit is To correct the processing result One in which the.
[0008]
In the air traffic control system according to the second aspect of the invention, the observation means controls the observation range based on the processing result from the second tracking processing unit.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
Embodiment 1 FIG.
Embodiment 1 of the present invention will be described below with reference to FIG. 1 is a block diagram showing an air traffic control system according to Embodiment 1 of the present invention. In FIG. 1, 1 is an observation means such as a radar device installed in or around an airport, and 2 is position information (data such as distance, azimuth, elevation angle) of a target such as an aircraft from observation data obtained by the observation means. : Signal processing unit 3 for detecting position information), 3 is an information processing unit for receiving position information of the target detected by the signal processing unit 2 and for performing various types of tracking processing as will be described later. Is a first tracking processing unit (hereinafter referred to as a simple processing unit) that performs tracking processing corresponding to the observation period of the observation means 1 and 5 is a signal. The position information of the target detected by the processing unit 2 is input, and the observation period of the observation unit 1 is a second tracking processing unit (hereinafter referred to as a normal processing unit) that performs high-accuracy tracking processing with an emphasis on tracking performance. ), 6 is a signal processing unit 2, Processing result of the easy processing unit 5 are respectively input, a display device for displaying such location and that their tracking of each target. As shown in FIG. 1, the processing result of the normal processing unit 5 is input to the observation unit 1, and the observation unit 1 controls the observation range based on the input processing result of the normal processing unit 5. Yes.
[0010]
Next, the operation of the air traffic control system shown in FIG. 1 will be described. The observation means 1 observes the airport and the vicinity of the airport with a preset observation cycle. When the observation of the observation unit 1 is started, the observation data acquired by the observation of the observation unit 1 is output to the signal processing unit 2. The signal processing unit 2 detects position information for a target such as an aircraft from the input observation data. For example, when a radar apparatus is used, a radar signal having a predetermined level exceeding a preset threshold value is determined as a reflected signal from the target, and position information of the target is detected from such a radar signal. The position information of the target is detected based on the observation data acquired for each observation period of the observation unit 1, and new position information is detected and output for each observation period of the observation unit 1. . When a plurality of targets are detected, position information about each target is detected and output.
[0011]
The position information of the target detected by the signal processing unit 2 is input to the information processing device 3 and the display device 6. The information processing apparatus 3 includes a simple processing unit 4 and a normal processing unit 5, and the tracking processing is performed in the simple processing unit 4 and the normal processing unit 5. The tracking process of the simple processing unit 4 is performed in accordance with the observation period of the observation means 1. For example, the latest position information of the target detected by the signal processing unit 2 and the position of the target detected last time Tracking processing for estimating the current motion information (speed, traveling direction, up / down, etc .: hereinafter referred to as motion information) from the information is performed. As described above, the tracking process in the simple processing unit 4 has a small amount of data to be handled (only the latest position information and the position information for the past one sampling), and the signal processing unit 2 detects the position information of many targets. In addition, the tracking period corresponding to the observation period of the observation means 1 can be maintained.
[0012]
If the processing load of the simple processing unit 4 has a margin, the tracking condition of the simple processing unit 4 can be changed within a range in which the tracking cycle corresponding to the observation cycle of the observation unit 1 can be maintained. The tracking processing for each target may be performed from the latest position information and the position information of one past sampling or more.
[0013]
Further, the tracking processing of the normal processing unit 5 is performed in order to ensure high-precision tracking performance for the target. For example, the latest position information of the target detected by the signal processing unit 2 and past detection are performed. The tracking processing is performed to estimate the motion information of the current target from the plurality of position information of the target. In this way, the tracking process in the normal processing unit 5 handles a large amount of data (latest position information and position information for the past several samplings), and the tracking process is performed based on the position information for the past several samplings. Even if erroneous estimation is performed once, the tracking result can be corrected in the next tracking process, and tracking off of each target can be prevented and high-precision tracking performance can be maintained.
[0014]
The normal processing unit 6 performs the tracking process for each target based on the position information for the past several samplings. Therefore, the processing load is large and the tracking period is longer than that of the simple processing unit 4, but will be described later. As described above, since the tracking result of the target is displayed using the tracking result of the simple processing unit 4, even if the tracking cycle of the normal processing unit 5 is longer than the observation cycle of the observation means 1. Even then, the control information provided to the controller will not be affected.
[0015]
The processing result of the simple processing unit 4 is output to the display device 6. Position information of each target detected by the signal processing unit 2 is also input to the display device 6, and the display device 6 converts the position information of each target and the tracking result of the simple processing unit 4 into a display signal. These pieces of information are displayed as control information on a display unit (not shown) such as a monitor. FIG. 2 is a display screen diagram illustrating a display example of the control information displayed by the display device 6. In FIG. 2, 7 is a display screen of the display device 6, 8 is an airport displayed on the display screen 7, 9 is position information of the target, a symbol mark indicating the target, and 10 is a mark for each target It is a tracking result of the simple processing unit 4. The display device 6 provides the control information to each controller by, for example, displaying the control information as shown in FIG. 2 on a display unit such as a monitor.
[0016]
The processing result of the normal processing unit 5 is output to the observation means 1. The observation means 1 refers to the tracking result of the normal processing unit 5 and controls the observation range. For example, when the observation unit 1 is configured by a radar device, it is possible to perform control such that the direction of the antenna of the radar device is the direction of the target detected by the processing of the signal processing unit 2. As described above, since the normal processing unit 5 performs high-precision tracking processing on the target, the antenna can be accurately directed to the target based on such high-precision tracking results. .
[0017]
Since the simple processing unit 4 has a lower tracking accuracy than the normal processing unit 5, it is possible that the control information provided by the display device 6 is not very accurate. In this regard, the processing result of the normal processing unit 5 Can be solved by feeding back to the simple processing unit 4 at an appropriate timing. For example, the tracking result of the normal processing unit 5 is configured to be output to the simple processing unit 4 every several observation periods of the observation means 1, and the simple processing unit 4 receives the tracking result from the normal processing unit 5. Then, the tracking result is corrected as its own tracking result, and thereafter, the process of using the tracking result of the normal processing unit 5 as its own tracking result is repeatedly executed. At this time, the control information displayed by the display device 6 is updated using the tracking result of the normal processing unit 5.
[0018]
In this case, if there is a large difference in the processing results between the simple processing unit 4 and the normal processing unit 5, the control information displayed by the display device 6 is significantly changed. Changes are likely to have a significant impact on the controller's judgment. Therefore, the timing at which the tracking result of the normal processing unit 5 is output to the simple processing unit 4 is set as short as possible without providing much intervals.
[0019]
As described above, in the air traffic control system according to the first embodiment, the simple processing unit 4 that performs the tracking process on the target with a relatively short tracking period close to the observation period of the observation unit 1 and the target with high accuracy. A normal processing unit 5 for performing a tracking process, and the tracking result of the simple processing unit 4 is displayed on the display device 6, and the processing result of the normal processing unit 5 is input to the simple processing unit 4 at a predetermined timing. Since the processing result of the processing unit 5 is used as the result of the simple processing unit 4, highly reliable control information can be obtained for a plurality of targets, while control for such a plurality of targets can be obtained. Information can be updated in a short cycle and displayed on the display unit, and control information can be provided to the controller quickly and with higher reliability.
[0020]
Embodiment 2. FIG.
Next, a second embodiment of the present invention will be described. FIG. 2 is a block diagram showing an air traffic control system according to Embodiment 2 of the present invention. In FIG. 2, reference numeral 11 denotes storage means for accumulating the tracking results of the normal processing unit 5, and sequentially accumulates the tracking results of the normal processing unit 5 processed in a predetermined tracking cycle as tracking information. The tracking information about each target accumulated in the storage means 11 is used for, for example, data analysis and flight planning such as an optimal observation period, tracking period setting, number of flights, operation schedule, and the like. In the drawings, the same reference numerals indicate the same or corresponding parts, and detailed description thereof will be omitted.
[0021]
As described above, in the air traffic control system according to the second embodiment, the same effect as that of the air traffic control system according to the first embodiment as described above can be obtained, and further, the normal processing unit processed in a predetermined tracking cycle Since the tracking result of 5 is stored in the storage means 11 as tracking information, the tracking information about each target stored in this way is used for the flight plan such as the setting of the optimal observation period or tracking period, the number of flights, the operation schedule, etc. Can improve the safety of air traffic control.
[0022]
【The invention's effect】
According to the present invention, highly reliable control information can be obtained for a plurality of targets, while control information for such a plurality of targets can be updated and displayed on the display unit in a short period. Therefore, it is possible to provide the controller with quick and more reliable control information.
[Brief description of the drawings]
FIG. 1 is a block configuration diagram showing an air traffic control system according to a first embodiment.
FIG. 2 is a display screen diagram showing a display example of control information displayed by the display device 6 of FIG. 1;
FIG. 3 is a block configuration diagram showing an air traffic control system according to a second embodiment.
[Explanation of symbols]
1 observation means (radar device), 2 signal processing unit, 3 information processing device,
4 first tracking means (simple processing section), 5 second tracking means (normal processing section),
6 Display device, 7 Display screen, 9 Target position information.

Claims (2)

A signal processing unit for detecting position information of the target from observation data observed by the observation means, and position information for each observation period of the target detected by the signal processing unit are input, and the latest target of the target is input. A first tracking processing unit that performs tracking processing on the target from position information and position information of the target detected last time, and position information for each observation period of the target are input, and the latest target And a second tracking processing unit that performs a tracking process on the target from the position information of the target detected in the past, and the processing result of the first tracking processing unit on the display unit On the other hand, the processing result of the second tracking processing unit is input to the first tracking processing unit, and the processing result of the first tracking processing unit is corrected based on the processing result. Air traffic control system. The air traffic control system according to claim 1, wherein the observation means controls an observation range based on a processing result from the second tracking processing unit.

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