JP2789739B2 - Radar control takeover device - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a radar control takeover device that automatically takes over radar control at an airport from a monitoring radar device to a precision approaching radar device.

2. Description of the Related Art An aircraft that intends to land at an airport must have a surveillance radar device (ie, an airport surveillance radar (Airp.
ort Surveilance Radar (ASR) and Secondary Surveillance Radar (SSR)) and control from precision approach radar (Precision Approach Radar: PAR) at about 10NM (Nautical Mile) from the airport. Taken over, PAR will steer the aircraft approaching the runway along the final approach course of landing,
Measure elevation and distance one by one and guide safely to the touchdown point (ground point) on the runway. In this way, airport radar control is being transferred from ASR / SSR to PAR, and this transfer of control is called handoff.

Here, radar control by ASR / SSR and radar control by PAR are separately performed by independent control devices, respectively, but the conventional handoff method is performed by the intervention of a controller. Hereinafter, a conventional handoff method will be described with reference to FIG.

In FIG. 2, the upper part shows an ASR / SSR control device (first radar control device), and the lower part shows a PAR control device (second radar control device). The ASR / SSR control device includes an ASR / SSR position detection device 2, an ASR / SSR target tracking identification processing device 3 'and an ASR / SSR
The pointing device 4 is basically provided. The PAR control device is
It basically includes an AR instruction device 5, a PAR position detection device 6, a PAR target tracking processing device 7 ', a PAR antenna direction control device 8 for outputting an antenna control signal to the PAR antenna 9, and an antenna scanning range adjustment device 10.

First, in the ASR / SSR control device, the ASR / SSR position detection device 2 performs signal processing on the ASR reception signal and the SSR reception signal, which are input signals, to detect an aircraft, and obtains azimuth data θ of the aircraft.
_AZ , distance data R, altitude data, and the like are formed as digital signals, which are output as ASR / SSR target data. Then, the ASR / SSR target tracking identification processing device 3 'performs a correlation process between the input ASR / SSR target data and the built-in tracking file, and tracks the aircraft. Also, this ASR / SS
The R target tracking identification processing device 3 'checks whether there is a correlation with the flight plan data inputted from the outside, and performs the identification processing of the aircraft. ASR / SSR
It is sent to the ASR / SSR indicating device 4 as display data, and the ASR / SSR
It is digitally displayed on the pointing device 4.

Therefore, the ASR / SSR controller visually recognizes the aircraft displayed on the ASR / SSR indicating device 4, determines the aircraft to be handed off, and transmits the position information of the succeeding aircraft to the PAR controller by voice. The PAR controller that has been handed over receives the antenna scanning range adjusting device 10 provided in the PAR indicating device 5.
To manually input the scanning range data of the antenna.
As a result, the initial acquisition antenna control data as a data signal or the initial acquisition antenna control signal as an analog signal is supplied to the PAR antenna direction control device 8, and the PAR antenna 9 is controlled in the scanning direction and directed in the direction in which the takeover aircraft exists. Then, the PAR controller starts operation.

That is, the PAR position detection device 6 detects an aircraft by performing signal processing on the PAR reception signal received by the PAR antenna 9 and converts the azimuth data θ _AZ , the distance data R, the elevation data θ _{EL and the} like of the aircraft into digital signals. And output it as PAR target data. Then, the PAR target tracking processing device 7 'performs a tracking process based on the input PAR target data and identification information (including call sign, altitude information, distance information, and the like) input by the PAR controller. The result is sent to the PAR instruction device 5 as PAR display data. If the initial capture operation is appropriate, the PAR instruction device 5 displays data on the takeover aircraft. The PAR controller visually confirms the completion of the initial capture by visually checking this display, and when the initial capture is completed, notifies the ASR / SSR controller of the completion of the handoff by voice and completes the handoff.

Thereafter, the PAR antenna 9 is used as the PAR target tracking processor 7 '.
The scanning control is performed according to the tracking antenna control data from the PAR indicating device, and the display of the PAR indicating device 5 is updated.

FIG. 3 shows a digital display example of the PAR instruction device 5.
In FIG. 3, the scope is divided into an upper part and a lower part. The upper part displays the elevation angle of the aircraft, and the lower part displays the azimuth angle. On the scope, a glide path cursor 12 and a course line 14 indicating a predetermined descending path are displayed, and target data measured from a reflected signal from the aircraft is displayed on the scope as a digital video 15. Then, near the display position of the digital video 15, target data 11 formed from identification information is displayed.
In the illustrated example, the target aircraft has a call sign of EAGLE01, an altitude of 048, and a distance of 015.

From the position of the digital video 15, the deviation from the glide path cursor 12 and the course line 14 can be confirmed, and when the aircraft deviates from the descent, the controller notifies the pilot by air-to-air radio and corrects the trajectory.
The distance from the contact point to the aircraft can be confirmed by the range mark 13 displayed in advance on the scope.

(Problems to be Solved by the Invention) In the conventional radar control takeover method described above, since handover aircraft information is transmitted by voice from the ASR / SSR controller to the PAR controller, it is difficult to perform a quick handoff. At a crowded airport with a large number of aircraft, there is a risk that traffic control may be impeded.

In addition, the PAR controller taking over the control right converts the position of the takeover aircraft from the ASR / SSR coordinates to the PAR coordinates in the head, which is time-consuming, and further requires manual adjustment of the antenna scanning direction. Therefore, the initial load of the aircraft increases the workload of the controller.

In addition, when there are a large number of aircraft in the PAR radar coverage area, there are various problems such as limiting the aircraft to be taken over control very difficult.

The present invention has been made in view of such a conventional problem, and an object of the present invention is to provide a radar control takeover device that can automatically perform a handoff without requiring the intervention of a controller. .

(Means for Solving the Problems) In order to achieve the above object, the radar control takeover device of the present invention has the following configuration.

That is, the radar control takeover device of the present invention is a first radar control device which receives signals received from an airport surveillance radar (ASR) and a secondary surveillance radar (SSR), performs target detection and tracking processing, and digitally displays the result. From radar control by
A radar control takeover device that performs a process of transitioning to radar control by a second radar control device that receives a reception signal of a precision approaching radar (PAR), performs target detection and tracking processing, and digitally displays the result; The radar control takeover device obtains target data after the tracking processing from the first radar control device, and converts the first PAR control target data from the target data to flight plan data including aircraft information scheduled to land at the airport; PAR extracted based on PAR control coverage data
A control target extracting device; receiving the first PAR control target data and converting the position data (azimuth, distance, altitude) based on ASR / SSR coordinates into position data (elevation angle, azimuth, distance) based on PAR coordinates A position data coordinate conversion device for outputting as second PAR control target data; and obtaining PAR target data from the second radar control device, and performing a correlation process between the PAR target data and the second PAR control target data. And PAR
Output the control right transfer completion data to the first and second radar control devices, and output identification information to the second radar control device,
A PAR control target identification device that outputs antenna control data for controlling the direction of the PAR antenna when the PAR cannot be initially acquired, and performs the initial acquisition of the aircraft taking over the control right at the PAR. It is assumed that.

(Operation) Next, the operation of the radar control takeover device of the present invention configured as described above will be described.

The PAR control target extraction device detects the aircraft that has entered the PAR control coverage area based on the target data after tracking processing obtained from the first radar control device, and determines whether the aircraft is scheduled to land at the airport. To sort out.

In the position data coordinate conversion device, the first PAR control target data thus formed is converted into a second data obtained by converting the position data contained therein from ASR / SSR coordinates to PAR coordinates.
Form PAR control target data.

Then, the PAR control target identification device checks the correlation between the PAR target data obtained from the second radar control device and the second PAR control target data to determine whether or not the initial capture of the PAR is completed, and completes the determination. If not, the PAR antenna direction is automatically controlled, and PAR initially captures the aircraft taking over control,
The control right transfer completion data and identification information are output.

As a result, the first and second radar control devices can notify the controllers of both control devices of the transfer of the control right by displaying the effect using the control right transfer completion data. Further, the second radar control device can automatically display the call sign and the like of the takeover aircraft without the input of the controller.

Thus, according to the present invention, the handoff can be automatically and promptly performed without the load of the controller, the controller can be notified of the completion of the handover, and the same display as in the related art can be performed.

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

FIG. 1 shows a radar control takeover method using a radar control takeover device according to an embodiment of the present invention. The radar control takeover device according to the present embodiment includes a PAR control target extraction device 1a, a position data coordinate conversion device 1b, and a PAR control target identification processing device 1c.
And basically comprising:

The PAR control target extraction device 1a receives the target data after the ASR / SSR tracking processing from the ASR / SSR target tracking identification processing device 3, and outputs the target data that has entered the range of the azimuth gate and the distance gate and the target airfield. Only the aircraft data scheduled to be landed is extracted by correlating with the flight plan data including the aircraft information scheduled to land, and is extracted (first).
Output as PAR control target data. Note that the azimuth gate and the distance gate are PAR control coverage data that gives the azimuth and distance range when the PAR control coverage is converted into ASR / SSR coordinates. The target data after ASR / SSR tracking processing is ASR / SSR
This is a format conversion of SR display data.

In this embodiment, the position data coordinate conversion device 1b includes a data conversion relay device 1b-1, a coordinate conversion device 1b-2, and an elevation angle calculation device 1b-3. PAR control target extraction device 1
The data conversion relay device 1b-1 having received the PAR control target data from the a position data (azimuth angle θ) based on the ASR / SSR coordinates
_AZ , distance R, altitude H), azimuth θ of ASR / SSR coordinates
The data of _AZ and distance R are given to the coordinate conversion device 1b-2,
The data of the coordinate height H is given to the elevation angle calculator 1b-3.

In the coordinate conversion device 1b-2, since the ASR / SSR and the PAR are installed at different locations, ASR position coordinate data and PAR position coordinate data indicating the respective installation locations are input in advance, and the ASR / SSR is installed based on the data. converting location data of the azimuth angle theta _AZ and the distance R relative to the to the data of the azimuth angle theta _AZ and the distance R relative to the PAR location. The converted data of the azimuth angle θ _AZ and the distance R are output to the data conversion relay device 1b-1, and the data of the distance R is also output to the elevation angle calculation device 1b-3.

Since the elevation angle calculator 1b-3 measures the elevation angle because the PAR cannot measure the altitude, the altitude H based on the SSR coordinates that have been forced is used.
Data and the elevation angle theta _EL was calculated by PAR coordinates from the distance R of the data by the PAR coordinates, it data conversion relay device 1b
Output to -1.

That is, in the data conversion relay device 1b-1, the azimuth angle θ _AZ , which is the position data based on the ASR / SSR coordinates, the distance R, the elevation angle θ _EL , the azimuth angle θ _AZ , which is the position data based on the PAR coordinates instead of the height R, The data is rearranged in R, and the converted (second) PAR control target data is output to the PAR control target identification processing device 1c.

In the PAR control target identification processing device 1c, the PAR target data (which is a format converted PAR display data) is input from the PAR target tracking processing device 7, and the PAR target data and the PAR control target data after the data conversion are input. It is determined whether the initial acquisition of the PAR is completed by checking the correlation with the PAR. If the initial acquisition of the PAR has not been completed yet and the correlation cannot be obtained, the initial acquisition antenna control data is output to the PAR antenna direction control device 8. I do.

Then, the PAR antenna direction control device 8
Output an antenna control signal that controls the antenna direction to the PAR and perform the initial acquisition operation, and as a result, if the PAR reception signal includes the succeeding target aircraft, the PA
The correlation can be obtained for the first time by the R control target identification processing device 1c.

Therefore, the PAR control target identification processing device 1c first sets the ASR / S
The control right transfer completion data is sent to the SR target tracking identification processing device 3 and the PAR target tracking processing device 7. As a result, both units (3,7) would have to clearly inform both the ASR / SSR controller and the PAR controller of the aircraft that had taken over control,
Each of the ASR / SSR indicating device 4 and the PAR indicating device 5 is transmitted with display data indicating the completion of the transfer of the control right to blink the digital display characters of the aircraft taking over the control right for a certain period of time,
Alternatively, characters indicating the transfer of control authority can be displayed.

Further, after taking over the control right, the PAR control target identification processing device 1c continuously sends identification data for identifying the control device to the PAR target tracking processing device 7. As a result, the target data 11 and the digital video 15 are digitally displayed by the PAR instruction device 5 as in the conventional case (FIG. 3).

(Effect of the Invention) As described above, according to the radar control takeover device of the present invention, the position of the aircraft that has entered the PAR control coverage area is automatically detected, and the aircraft scheduled to land at the airport is further detected. Is automatically selected based on the flight plan data, the position information of the target data is converted from the ASR / SSR coordinates to the PAR coordinates, and the PAR antenna direction is automatically controlled based on the information. The PAR was used to initially capture the aircraft taking over the control right and to output the control right transfer completion data and identification information, so the control right was automatically taken over, the controller was informed to that effect, and the PAR control was performed. The device (second radar control device) can perform the same digital display as in the related art.

Thus, according to the present invention, the control right from the radar control by the first laser control device to the radar control by the second radar control device can be carried out quickly and reliably, and the load on the air traffic controller is greatly reduced. It has the effect of greatly reducing the safety of air traffic control.

Also, since the PAR display data after taking over the control is correlated with the ASR / SSR information, very reliable data can be displayed, and the safety of radar control by the second radar control device is further improved. There is also the effect of being higher.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a configuration of a radar control takeover system when a radar control takeover device according to an embodiment of the present invention is applied,
FIG. 2 is a block diagram showing the configuration of a conventional radar control takeover system,
FIG. 3 is a digital display example of the PAR indicating device. 1 ... radar control takeover device, 1a ... PAR control target extraction device, 1b ... position data coordinate conversion device, 1b-1 ... data conversion relay device, 1b-2 ... coordinate conversion device, 1b-3 ... Elevation angle calculator, 1c… PAR control target identification processor, 2… A
SR / SSR position detection device, 3 ... ASR / SSR target tracking identification processing device, 4 ... ASR / SSR instruction device, 5 ... PAR instruction device, 6
… PAR position detection device, 7 PAR target tracking processing device, 8
… PAR antenna direction control device, 9… PAR antenna.

Claims (1)

(57) [Claims] An object of the present invention is to receive a signal from an airport surveillance radar (ASR) and a secondary surveillance radar (SSR), perform a target detection and tracking process, and obtain a precision from a radar control by a first radar control device for digitally displaying the result. A radar control takeover device for performing a process of transitioning to radar control by a second radar control device which receives a signal received by a measurement approach radar (PAR), performs target detection and tracking processing, and digitally displays the result; The control takeover device obtains the target data after the tracking processing from the first radar control device, and converts the first PAR control target data from the target data into flight plan data and PAR control information including aircraft information scheduled to land at the airport. A PAR control target extraction device for extracting based on control coverage data; receiving the first PAR control target data and receiving position data (azimuth, distance, altitude) in ASR / SSR coordinates; Is converted to position data (elevation angle, azimuth angle, distance) by PAR coordinates,
A position data coordinate conversion device for outputting as PAR control target data; obtaining PAR target data from the second radar control device, performing a correlation process between the PAR target data and the second PAR control target data; When the initial control is successful, the control right transfer completion data is output to the first and second radar control devices, and the identification information is output to the second radar control device. A PAR control target identification device that outputs antenna control data for controlling the direction of the PAR antenna when there is no PAR and performs initial acquisition of the control right aircraft at the PAR. .