JP6969074B2 - ADS-B report acquisition device and method - Google Patents

Description

The present invention relates to an ADS-B notification acquisition device and a method.

In Automatic Dependent Surveillance-Broadcast (ADS-B), an on-board device mounted on an aircraft broadcasts aircraft information including a position based on a positioning result by the navigation device of the aircraft. By receiving the broadcast by a ground device, it is possible to acquire the position of the aircraft.

By receiving broadcasts from multiple aircraft with the ADS-B notification acquisition device on the ground, it is assumed that the positional relationship between aircraft will be grasped and that it will be used for air traffic control to secure a safe interval between aircraft. There is.

The position report from the aircraft by ADS-B is spontaneously transmitted from the aircraft, and even if an erroneous position report is broadcast due to a failure of the onboard device of the aircraft, etc., it is on the ground. It cannot be detected on the device side. For this reason, there is a problem that air traffic control is performed due to an erroneous position report, and as a result, a safety interval between aircraft cannot be secured.

Techniques related to solving this problem are disclosed in Patent Document 1 and Patent Document 2. For example, Patent Document 1 discloses an ADS-B inspection device that inspects the reliability of an ADS-B signal transmitted from an aircraft. The ADS-B inspection device disclosed in Patent Document 1 receives an ADS-B signal transmitted from an aircraft, and receives a response signal from the aircraft received by an SSR (SSR: Secondary Surveillance Radar). get. The ADS-B inspection device compares the position of the aircraft included in the ADS-B signal with the position of the aircraft included in the response signal, and if they do not match, the ADS-B signal is inspected as unreliable. Output the result.

Further, the ADS-B ground station disclosed in Patent Document 2 asks the aircraft that newly created the track information based on the received ADS-B signal a mode S individual question immediately after the creation of the track information. The response signal is received and decoded to acquire DBC and position information, and the distance to the aircraft is calculated based on the position information. Further, the ADS-B ground station acquires distance information based on the transmission timing of the mode S individual inquiry signal and the reception timing of the mode S individual response signal as its response. The ADS-B ground station determines whether the DBC and the distance information match.

Japanese Unexamined Patent Publication No. 2008-130047 Japanese Unexamined Patent Publication No. 2008-146450

However, in the technique described in Patent Document 1, as described above, the positions of the aircraft included in the ADS-B signal and the response signal are compared and determined. Both the compared positions are measured by the equipment in the aircraft. Therefore, it is difficult to determine the correctness of the ADS-B signal with high reliability.

Further, in the technique described in Patent Document 2, the ADS-B ground station sends and receives the ADS-B signal and the mode S individual question signal and the response signal to and from the aircraft by an omnidirectional antenna. Therefore, the influence of radio wave interference is expected.

An object of the present invention is to provide an ADS-B notification acquisition device and a method capable of detecting that an erroneous position notification has been broadcast by a device on the ground side with high reliability.

The ADS-B notification acquisition device according to one aspect of the present invention includes a receiving station that receives a position report from an aircraft, a coverage management unit that manages the receivable coverage of the receiving station, the receivable coverage, and the above. It has a position information collation unit that collates with the position included in the position report.

Further, in the ADS-B notification acquisition method according to another aspect of the present invention, the receivable coverage area of the receiving station is acquired, the position report from the aircraft existing in the receivable coverage area is received, and the receivable coverage area is used. Collate with the position included in the position report.

According to the present invention, it is possible to detect with high reliability that an erroneous location report has been broadcast by a device on the ground side.

FIG. 1 is a block diagram showing the configuration of the first embodiment. FIG. 2 is an explanatory diagram illustrating a schematic configuration and operation of the first embodiment. FIG. 3 is a flowchart showing the operation of the first embodiment. FIG. 4 is a block diagram showing the configuration of the first modification. FIG. 5 is a flowchart showing the operation of FIG. FIG. 6 is a diagram showing an example of a configuration of an information processing device that realizes each part of FIGS. 1 and 4.

FIG. 2 is an explanatory diagram illustrating a schematic configuration and operation of the first embodiment of the present invention. FIG. 2 is a view looking down on the receivable coverage area 100 of the receiving station 11 of the receiving station 11 of the first embodiment of the present invention, and the receiving station 11 is, for example, in a certain angle range. By providing a directional sector antenna, the receivable coverage is narrower than that of a standard receiving station. Further, the ADS-B notification acquisition device of the present embodiment manages the receivable coverage area 100 suppressed by the standard receiving station of the receiving station 11. For example, the ADS-B notification acquisition device manages the left surface 101, the right surface 102, the farthest surface 103 of the receivable coverage area 100 shown in FIG. 2, and the upper surface and the lower surface of the receivable coverage area 100 not shown in FIG. ..

When the ADS-B notification acquisition device receives the position notification 40 from the aircraft 30, the position 110 included in the position notification 40 and the receivable coverage area 100 of the receiving station 11 managed, that is, the left side 101 in the example of FIG. If it is within the range surrounded by the right side 102, the farthest side 103, and the upper surface and the lower surface of the receivable covering area 100, the position notification 40 is determined to be correct and transmitted to an air traffic control device (not shown). Further, when the position 110 included in the position report 40 and the receivable coverage area 100 of the managed receiving station 11 do not match, the ADS-B report acquisition device determines that the position report 40 is incorrect and is incorrect. The position report 40 determined to be determined is not transmitted to the air traffic control device. Alternatively, information indicating that the position information is explicitly incorrect is added to the position information 40 and transmitted.

As described above, the ADS-B notification acquisition device of the present embodiment makes a correct / incorrect judgment by comparing the position included in the position notification 40 with the receivable coverage area managed on the ground side. The ADS-B notification acquisition device does not send or receive the mode S individual question signal and the response signal, and therefore the risk of radio wave interference is reduced, so that the position included in the position notification can be correctly determined. Therefore, the ADS-B notification acquisition device of the present embodiment can determine the correctness of the position notification 40 with high reliability. In addition, it is no longer necessary to refer to incorrect position information in air traffic control, and the safety of air traffic control operation is improved.

FIG. 1 is a block diagram showing an example of the configuration of the first embodiment of the present invention. As shown in FIG. 1, the ADS-B notification acquisition device 1 includes a receiving station 11 that receives a position report 40 from an aircraft 30, an area management unit 12 that manages a receivable coverage area 100 of the receiving station 11. A position collating unit 13 for collating the receivable coverage area 100 with the position 110 included in the position report 40 is provided.

The receiving station 11 suppresses the signal receiving ability so that the receivable coverage area is narrower than that of the standard receiving station. As a specific range of the receivable coverage area of the receiving station 11, for example, only the position notification 40 from the aircraft 30 less than 100 NM (nautical mile) (= 185.2 km) centering on the receiving station 11 may be receivable. Further, the receiving station 11 may be configured to have a narrower receivable coverage than a standard receiving station by providing a sector antenna having directivity in a certain angle range.

In order to manage the receivable coverage area 100 of the receiving station 11, the coverage management unit 12 sets, for example, each surface surrounding the receivable coverage area 100. For example, in the example shown in FIG. 2, the left surface 101, the right surface 102, the upper surface, and the lower surface surrounding the receivable coverage area are set in the coverage area management unit 12 based on, for example, the directivity specifications of the antenna provided in the receiving station 11. May be done. Further, the farthest surface 103 may be set on a spherical surface having a radius of 100 NM, for example, based on the signal receiving capability of the receiving station 11. Further, each surface surrounding the receivable covering area, that is, the left surface 101, the right surface 102, the upper surface, the lower surface, and the farthest surface 103 may be set in the covering area management unit 12 by the user's operation.

Further, when the signal receiving capability of the receiving station 11 and the directivity of the antenna provided in the receiving station 11 can be suppressed by the user's setting, the area covering management unit 12 receives the signal of the set receiving station 11. The distance between the receiving station 11 and the farthest surface 103 may be changed based on the capability, and each surface surrounding the receivable coverage area may be changed based on the set directivity.

Further, in the cover area management unit 12, all or one part of each surface surrounding the receivable cover area 100 may be changed according to the weather or the like. For example, the coverage management unit 12 includes a sensor (not shown), and the distance between the receiving station 11 and the farthest surface 103 may be changed according to the change in the reachability of the radio wave due to the weather or the like detected by the sensor.

The receivable cover area 100 set in the cover area management unit 12 is not limited to the above, and any space definition is possible.

When the position matching unit 13 receives the position report 40 from the aircraft 30, it analyzes the position report 40 and acquires the position 110 of the aircraft included in the position report 40. Further, the position collating unit 13 acquires the receivable covering area 100 of the receiving station 11, for example, the left surface 101, the right surface 102, the upper surface, the lower surface, and the farthest surface 103 surrounding the receivable covering area 100 from the covering area management unit 12. The definition of the receivable coverage area 100 is not limited to the shape shown in FIG. 2, and any space can be defined other than the shape shown in FIG.

In the position collation unit, when the position 110 included in the position report 40 and the receivable coverage area 100 of the receiving station 11 match, that is, in the example of FIG. 2, the position 110 included in the position report 40 is the left side 101. If it is within the defined receivable coverage area 100 such as the range surrounded by the right surface 102, the upper surface, the lower surface, and the farthest surface 103, the position notification 40 is determined to be correct and transmitted to an air traffic control device (not shown).

If the receivable coverage area 100 and the position 110 included in the position report 40 do not match, that is, if the position 110 included in the position report 40 is the example of FIG. 2, the left side 101, right side 102, and top surface of the receiving station 11 If it is outside the defined receivable coverage area 100 such as the range surrounded by the lower surface and the farthest surface 103, it is determined that the position report 40 is incorrect and the position report 40 is rejected. That is, the position collation unit 13 does not transmit the position report 40 determined to be incorrect to the air traffic control device. Alternatively, information indicating that the position information is explicitly incorrect is added to the position information 40 and transmitted.

As described above, the ADS-B notification acquisition device 1 of the present embodiment makes a correct / incorrect judgment by comparing the position included in the position notification with the receivable coverage area managed on the ground side. The ADS-B notification acquisition device 1 of the present embodiment can determine whether the position included in the position notification is correct or incorrect without exchanging and receiving the mode S individual question signal and the response signal, and thus reducing the risk of radio wave interference. Therefore, the ADS-B notification acquisition device 1 of the present embodiment can determine the correctness of the position notification 40 with high reliability. In addition, it is no longer necessary to refer to incorrect position information in air traffic control, and the safety of air traffic control operation is improved.

It should be noted that each component of the ADS-B notification acquisition device shown in FIG. 1 and the modified example described later shows a block of functional units. A part or all of each component of the ADS-B notification acquisition device 1 of the present embodiment may be realized by any combination of the information processing device 50 and the program as shown in FIG. 6, for example. As an example, the information processing apparatus 50 includes the following configurations.

-CPU (Central Processing Unit) 51
-ROM (Read Only Memory) 52
-RAM (Random Access Memory) 53
-Program 54 loaded into RAM 53
A storage device 55 for storing the program 54.
A drive device 57 that reads and writes the recording medium 56.
-Communication interface 58 connected to the communication network 59
-I / O interface 60 for inputting / outputting data
-Bus 61 connecting each component
Each component of the ADS-B notification acquisition device of the present embodiment and the modification described later is realized by the CPU 51 acquiring and executing the program 54 that realizes these functions. The program 54 that realizes the functions of each component of each device is stored in, for example, a storage device 55, a ROM 52, or a RAM 53 in advance, and is read by the CPU 51 as needed.

The program 54 may be supplied to the CPU 51 via the communication network 59, or may be stored in the recording medium 56 in advance, and the drive device 57 may read the program and supply the program to the CPU 51.

There are various modifications in the method of realizing the ADS-B notification acquisition device of this embodiment and the modifications described later. For example, each component of the ADS-B notification acquisition device may be realized by any combination of an information processing device and a program that are separate for each component. Further, a plurality of components included in each device may be realized by any combination of one information processing device and a program.

In addition, some or all of the components of the ADS-B notification acquisition device of the present embodiment and the modifications described later are realized by other general-purpose or dedicated circuits (cyclery), processors, and combinations thereof. These may be composed of a single chip or may be composed of a plurality of chips connected via a bus. A part or all of each component of each device may be realized by the combination of the circuit or the like and the program described above.

When a part or all of each component of the ADS-B notification acquisition device of the present embodiment and the modification described later is realized by a plurality of information processing devices, circuits, etc., the plurality of information processing devices, circuits, etc. , It may be centrally arranged or distributed. For example, the information processing device, the circuit, and the like may be realized as a form in which each is connected via a communication network, such as a client-and-server system and a cloud computing system.

Next, the operation of this embodiment will be described. FIG. 3 is a flowchart showing the operation of the present embodiment. First, the position notification 40 is received from the aircraft 30 by the receiving station 11 in which the receivable coverage area 100 is suppressed from the standard receiving station (step S1).

Next, the position collation unit 13 acquires the receivable cover area 100 of the receiving station 11 managed by the cover area management unit 12 (step S2). In the example of FIG. 2, the position collating unit 13 defines each surface surrounding the receivable covering area 100, that is, the left surface 101, the right surface 102, the upper surface, the lower surface, the farthest surface 103, and the like. The surrounding surface is acquired from the cover area management unit 12.

Then, the position collation unit 13 collates the receivable coverage area 100 with the position 110 included in the position report 40 (step S3). The position collation unit 13 determines whether the receivable coverage area 100 and the position 110 match (step S4). For example, in the position collation unit 13, the position 110 included in the position report 40 surrounds each surface surrounding the receivable cover area 100 acquired from the cover area management unit 12, that is, in the example of FIG. 2, the left surface 101, the right surface 102, the upper surface, and the lower surface. And it is judged whether it is within the range surrounded by the farthest surface 103. When the receivable coverage area 100 and the position 110 match, the position collation unit 13 determines that the position report 40 is correct and transmits it to an air traffic control device (not shown) (step S5). Further, if the receivable coverage area 100 and the position 110 do not match, that is, if the position 110 included in the position notification 40 is outside the range surrounded by each surface acquired from the coverage area management unit 12, the position matching unit 13 , It is determined that the location report is incorrect, and the data of the incorrect location report 40 is rejected (step S6). That is, the position collation unit 13 does not transmit the data of the position report 40 determined to be incorrect to the air traffic control device. Alternatively, information indicating that the position information is explicitly incorrect is added to the position information 40 and transmitted.

As described above, the ADS-B notification acquisition device 1 of the present embodiment receives the position notification 40 from the aircraft 30 by the receiving station 11 in which the receivable coverage area 100 is suppressed from the standard receiving station, and the position notification is performed. The position 110 included in the 40 is collated with the receivable coverage area 100 from the cover area management unit 12, and the correctness of the position report 40 is determined. In this way, the ADS-B notification acquisition device 1 of the present embodiment does not send and receive the mode S individual question signal and the response signal, and therefore reduces the risk of radio wave interference, so that the position included in the position notification can be determined. You can judge whether it is correct or incorrect. Therefore, the ADS-B notification acquisition device 1 of the present embodiment can determine the correctness of the position notification 40 with high reliability. In addition, it is no longer necessary to refer to incorrect position information in air traffic control, and the safety of air traffic control operation is improved.

Although the invention of the present application has been described above with reference to the embodiments, the invention of the present application is not limited to the above-described embodiment. Various changes that can be understood by those skilled in the art can be made within the scope of the present invention in terms of the configuration and details of the present invention.

For example, the ADS-B notification acquisition device may include a recording unit 14 for recording the position notification 40 when the receivable coverage area 100 and the position 110 included in the position notification 40 do not match.

FIG. 4 is a block diagram showing the configuration of the first modification. As shown in FIG. 4, the ADS-B notification acquisition device 2 of the first modification is configured with FIG. 1 in that it includes a recording unit 14 for storing data of the position notification 40 determined to be incorrect. Is different.

FIG. 5 is a flowchart showing the operation of FIG. In this modification, after performing the same processing as in steps S1 to S4 shown in FIG. 3, when the receivable coverage area 100 and the position 110 match, the position matching unit 13 is positioned as in step S5 shown in FIG. It is determined that the notification 40 is correct, and the notification 40 is transmitted to an air traffic control device (not shown) (step S5). On the other hand, when the receivable coverage area 100 and the position 110 do not match, that is, the position 110 included in the position notification 40 is outside the range surrounded by each surface acquired from the coverage area management unit 12, and the position matching unit 13 determines. When it is determined that the position report is incorrect, in this modification, the data of the incorrect position report 40 is saved in the recording unit 14 (step S10). Also in this modification, the position collation unit 13 handles the data of the position report 40 determined to be incorrect in the same manner as in the embodiment.

With such a configuration, the same effect as that of the first embodiment described above can be obtained, and the erroneous position notification 40 stored in the recording unit 14 can be confirmed after the fact, and the quality of air traffic control operation can be obtained. It leads to improvement.

1, 2 ADS-B notification acquisition device 11 Receiving station 12 Coverage management unit 13 Position matching unit 14 Recording unit 30 Aircraft 40 Position notification 50 Information processing device 51 CPU
52 ROM
53 RAM
54 Program 55 Storage device 56 Recording medium 57 Drive device 58 Communication interface 59 Communication network 60 Input / output interface 61 Bus 100 Receivable coverage 101 Left side 102 Right side 103 Farthest side 110 Position

Claims (6)

The receiving station that receives the position report from the aircraft, and
The coverage management unit that manages the receivable coverage of the receiving station,
A position collation unit that collates the receivable coverage area with the position included in the position report,
Have,
The coverage management unit manages each surface surrounding the receivable coverage area, and changes each surface surrounding the receivable coverage area based on the signal reception capability or directivity of the receiving station. Acquisition device. The ADS-B notification acquisition device according to claim 1, wherein the position collating unit determines whether the position included in the position report matches the receivable coverage area, and rejects the position report if the position does not match. .. The ADS-B notification acquisition device according to claim 1 or 2, further comprising a recording unit for recording the position notification when the receivable coverage area and the position included in the position notification do not match. The ADS-B notification acquisition device according to any one of claims 1 to 3, wherein the position collating unit determines whether or not the position included in the position notification is within a range surrounded by the respective surfaces. Obtain the receivable coverage of the receiving station and
Upon receiving the position report from the aircraft existing in the receivable coverage area,
By collating the receivable coverage area with the position included in the position report,
ADS-B notification acquisition method that manages each surface surrounding the receivable coverage area and changes each surface surrounding the receivable coverage area based on the signal reception capability or directivity of the receiving station. The process of acquiring the receivable coverage of the receiving station and
The process of receiving a position report from an aircraft existing in the receivable coverage area, and
The process of collating the receivable coverage area with the position included in the position report, and
The process of managing each surface surrounding the receivable coverage area and changing each surface surrounding the receivable coverage area based on the signal reception capability or directivity of the receiving station.
A program that lets your computer run.

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