JP6790464B2 - Position matching device, ADS-B report acquisition device and position matching method - Google Patents

Description

The present invention relates to a position matching device, an ADS-B report acquisition device, and a position matching method.

Broadcast Automatic Dependent Surveillance-Broadcast (ADS-B) is an on-board device mounted on an aircraft that broadcasts aircraft information, including position based on positioning results from 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 ADS-B notification acquisition devices on the ground, it is expected that the positional relationship between aircraft will be grasped and that it will be used for air traffic control to ensure a safe interval between aircraft. There is.

Position reports from aircraft by ADS-B are spontaneously transmitted from the aircraft, and even if an erroneous position report is broadcast due to a failure of the onboard equipment 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 safe 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 ADS-B signals 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 a mode S individual question immediately after creating the track information to the aircraft that newly created the track information based on the received ADS-B signal. The response signal is received and decoded to obtain 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 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, the accuracy of the determination depends on the accuracy of the equipment in the aircraft.

Further, in the technique described in Patent Document 2, whether or not the position included in the ADS-B signal matches the distance calculated by the transmission timing of the mode S individual inquiry signal and the reception timing of the response signal in the ADS-B ground station. Is determined. Therefore, it is difficult to detect even if the positions are largely deviated within the same distance range.

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

The position matching device according to one aspect of the present invention includes a position report acquisition unit that acquires a position report received from an aircraft, a multilateration positioning position acquisition unit that acquires the position of the aircraft that has been multilaterated, and the above. It has a position information collation unit that collates the position measured by multilateration with the position included in the position report.

Further, the ADS-B notification acquisition device according to another aspect of the present invention includes a receiving station that receives a position report from an aircraft, a multilateration positioning position acquisition unit that acquires the position of the aircraft that has been multilaterated. It has a position information collation unit that collates a position by the multilateration positioning with a position included in the position report.

Further, the position collation method according to still another aspect of the present invention acquires the position report from the aircraft, acquires the position of the aircraft that has been multilaterated, and uses the multilaterated position and the position report. Collate with the included position.

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 a 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 the first embodiment. FIG. 6 is a block diagram showing the configuration of the second modification. FIG. 7 is a block diagram showing a configuration of a third modification. FIG. 8 is a diagram showing an example of the configuration of an information processing device that realizes each part of FIGS. 1, 4, 6, and 7.

FIG. 2 is an explanatory diagram illustrating a schematic configuration and operation of the first embodiment of the present invention. As shown in FIG. 2, the ADS-B automatic position matching device 1 has a receiving station 11 that receives an ADS-B position report from an aircraft 30, and a multi that performs multilateration (MLAT) positioning of the aircraft. It is connected to the latration device 12. Further, the position collation device 1 collates the MLAT positioning position 100 by the multilateration device 12 with the position 110 included in the position report. The multilateration device 12 receives the response signal 41 of the SSR (Secondary Surveillance Radar) transmitted from the aircraft 30 at, for example, four points, performs multilateration positioning, and sets the MLAT positioning position 100. Output. When the position 110 included in the position report 40 received by the receiving station 11 and the MLAT positioning position 100 by multilateration positioning match, the position collation device 1 determines that the position report 40 is correct, and is an air traffic control device (not shown). Send to. Further, when the MLAT positioning position 100 and the position 110 included in the position report 40 do not match, the position collation device 1 determines that the position report 40 is incorrect and does not transmit it to an air traffic control device (not shown). Alternatively, information indicating that the position information is clearly incorrect is added to the position information 40 and transmitted.

As described above, the ADS-B notification position collation device 1 of the present embodiment determines whether the position included in the position report 40 by ADS-B is correct or incorrect by comparing with the position by highly reliable and highly accurate multilateration positioning. I do. The position by multilateration positioning is different from the position 110 of the aircraft included in the response signal of the SSR, and is the result of measurement based on the time when the response signal or the like is received on the ground side. Therefore, the position collating device 1 of the present embodiment can determine the correctness of the position report 40 with high reliability regardless of the accuracy of the device on the aircraft. In addition, it is not 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.
The multilateration device 12 includes a number required for performing multilateration positioning, for example, four receiving stations 11. The receiving station 11 receives the position notification 40 from the aircraft 30 and also receives the response signal 41 of the SSR. The receiving station 11 has a known position, receives a response signal 41 from the aircraft 30, and outputs information including the reception time and identification information to the multilateration device 12.

The multilateration device 12 receives the response signals 41 transmitted from the aircraft 30 at, for example, four receiving stations 11, and creates four simultaneous equations from the four receiving times and the positions of the receiving stations for the same response signal 41. , Multilateration positioning of the aircraft 30 is performed by solving the simultaneous equations, and the MLAT positioning position 100 is output. The multilateration device 12 creates four simultaneous equations from the reception time when the four receiving stations 11 receive the position report 40 from the aircraft 30 by ADS-B and the positions of the four receiving stations, and the simultaneous equations thereof. Multilateration positioning may be performed by solving the equations.

As shown in FIG. 1, the position collation device 1 obtains the position report acquisition unit 14 that acquires the position report 40 from the receiving station 11, and the MLAT positioning position 100 obtained by multilateration positioning from the multilateration unit 12. The MLAT position acquisition unit 15 for acquisition and the position collation unit 13 are provided.

The position collation unit 13 analyzes the position report 40 from the position report acquisition unit 14 and extracts the position 110 included in the position report 40. The position collation unit 13 collates the position 110 included in the position report 40 with the MLAT positioning position 100 by the multilateration positioning acquired from the multilateration device 12. When the position 110 included in the position report 40 and the MLAT positioning position 100 by multilateration positioning match, that is, the error between the position 110 included in the position report 40 and the MLAT positioning position 100 by multilateration positioning is within a predetermined range. If so, it is determined that the position report 40 is correct and transmitted to an air traffic control device (not shown). A predetermined range used for this determination may be preset in the position collation unit 13.

Further, the position collation unit 13 includes a recording unit 14 that records the position report 40 when the MLAT positioning position 100 and the position 110 included in the position report 40 do not match. If the position 110 included in the MLAT positioning position 100 and the position report 40 do not match, that is, if the error between the position 110 included in the position report 40 and the MLAT positioning position 100 is out of the predetermined range, the position collation unit 13 moves the position. It is determined that the 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 clearly incorrect is added to the position information 40 and transmitted.

As described above, the ADS-B notification position collation device 1 of the present embodiment determines the correctness of the position report 40 by comparing the position included in the position report 40 with the position by highly reliable and highly accurate multilateration positioning. I do. Therefore, the position collation device 1 can determine the correctness of the position report 40 with high reliability. Further, since the position collation device 1 does not transmit the data of the position report 40 determined to be incorrect to the air traffic control device, it is not necessary to refer to the incorrect position information in the air traffic control, and the safety of the air traffic control operation is improved. ..

It should be noted that each component of the ADS-B report acquisition device 1 shown in FIG. 1 and the modification described later shows a block of functional units. A part or all of the ADS-B notification acquisition device 1 of the present embodiment and each component of each modification described later is realized by, for example, an arbitrary combination of the information processing device 50 and the program as shown in FIG. May be good. The information processing device 50 includes the following configuration as an example.

-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
-Drive device 57 that reads and writes the recording medium 56
-Communication interface 58 that connects to the communication network 59
-I / O interface 60 for inputting / outputting data
-Bus 61 connecting each component
Each component of the position collating device 1 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 position collating device 1 and the method of realizing the modifications described later. For example, each component of the position matching device 1 and the modification described later may be realized by an arbitrary 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.

Further, a part or all of each component of the ADS-B notification acquisition device 1 and each modification described later is realized by other general-purpose or dedicated circuits (cyclery), a processor, or a combination 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 a combination of the above-mentioned circuit or the like and a program.

When a part or all of each component of the position collating device 1 and the modification described later is realized by a plurality of information processing devices and circuits, the plurality of information processing devices and circuits may be centrally arranged. It may be arranged in a distributed manner. For example, the information processing device, the circuit, and the like may be realized as a form in which each of the client and server system, the cloud computing system, and the like is connected via a communication network.

Next, the operation of this embodiment will be described. FIG. 3 is a flowchart showing the operation of the present embodiment. First, when the position report 40 is received from the aircraft 30 by the receiving station 11, the position report acquisition unit 14 acquires the position report 40 from the receiving station 11 (step S1).

Next, the MLAT position acquisition unit 15 acquires the MLAT positioning position 100 by multilateration positioning from the multilateration device 12 (step S2).

Then, the position collation unit 13 collates the MLAT positioning position 100 by multilateration positioning with the position 110 of the aircraft 30 included in the position report 40 (step S3), and the position included in the MLAT positioning position 100 and the position report 40. It is determined whether 110 matches (step S4). For example, it is determined whether the error between the position 110 included in the position report 40 and the MLAT positioning position 100 is within a predetermined range.

When the MLAT positioning position 100 and the position 110 included in the position report 40 match, the position collation unit 13 determines that the position report 40 is correct and transmits the position report 40 to an air traffic control device (not shown) (step S5). Further, if the MLAT positioning position 100 and the position 110 included in the position report 40 do not match, that is, if the error between the position 110 included in the position report 40 and the MLAT positioning position 100 is out of the predetermined range, the position collation unit 13 Determines that the location report is incorrect, and rejects the data of the incorrect location report 40 (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 clearly incorrect is added to the position information 40 and transmitted.

As described above, the ADS-B notification position collation device 1 of the present embodiment determines the position included in the position report 40 by ADS-B by highly reliable and highly accurate MLAT positioning on the ground side. By comparing with 100, the correctness judgment of the position report 40 is made. Therefore, the ADS-B notification acquisition device 1 of the present embodiment can determine the correctness of the position notification 40 with high reliability regardless of the accuracy of the device on the aircraft. Further, since the position collation device 1 does not transmit the data of the position report 40 determined to be incorrect to the air traffic control device, it is not necessary to refer to the incorrect position information in the air traffic control, and the safety of the air traffic control operation is improved. .. In addition, it is not necessary to refer to incorrect position information in air traffic control, and the safety of air traffic control operation is improved.

Although the present invention has been described above with reference to the embodiments, the present invention is not limited to the above embodiments. 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 structure and details of the present invention.

For example, the position collation device may include a recording unit 16 that stores data of the position report 40 determined to be incorrect.

FIG. 4 is a block diagram showing the configuration of the first modification. As shown in FIG. 4, the position collating device 2 of the first modification is different from the configuration of FIG. 1 in that it includes a recording unit 16 for storing the data of the position report 40 determined to be incorrect.

FIG. 5 is a flowchart showing the operation of FIG. In this modification, after performing the same processing as steps S1 to S4 shown in FIG. 3, when the MLAT positioning position 100 and the position 110 included in the position notification 40 match, as in step S5 shown in FIG. 3, position matching is performed. The unit 13 determines that the position report 40 is correct and transmits it to an air traffic control device (not shown) (step S5). On the other hand, when the MLAT positioning position 100 and the position 110 included in the position report 40 do not match, that is, the error between the position 110 included in the position report 40 and the MLAT positioning position 100 is out of the predetermined range, and the position collation unit 13 When it is determined that the position report is incorrect, in this modified example, the data of the incorrect position report 40 is saved in the recording unit 16 (step S10). In this modified example as well, the position collation unit 13 handles the data of the position report 40 determined to be incorrect in the same manner as in the example of FIG.

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 16 can be confirmed after the fact.

As yet another modification, a configuration may be configured in which the plurality of devices shown in FIG. 1 are provided in one device. For example, a receiving station and a position matching device may be provided in one device to form an ADS-B report acquisition device. FIG. 6 is a block diagram showing the configuration of the second modification. As shown in FIG. 6, the ADS-B report acquisition device 3 includes a receiving station 11 and an MLAT position acquisition unit 15 that acquires an MLAT position 100 that has been multilaterated from the multilateration device 12, and is a position matching unit. 13 collates the position 110 included in the position report 40 received by the receiving station 11 with the MLAT position 100. When these 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). If these do not match, that is, if the error between the position 110 included in the position report 40 and the MLAT positioning position 100 is out of the predetermined range, the data of the position report 40 is stored in the recording unit 16. In this modified example as well, the position collation unit 13 handles the data of the position report 40 determined to be incorrect in the same manner as in the example of FIG.

Even with such a configuration, as with the effects of the first embodiment and the first modification described above, the position report 40 can be correctly determined with high reliability, and the wrong position information is not referred to in air traffic control. , The effect of improving the safety of air traffic control operation can be obtained. Further, by storing the data of the erroneous position report 40 in the recording unit 16, it is possible to confirm the erroneous position report 40 after the fact.

Further, it may be configured as an ADS-B report acquisition device including a receiving station, a multilateration device, and a position matching device in one device. FIG. 7 is a block diagram showing a configuration of a third modification of FIG. 1. As shown in FIG. 7, the ADS-B report acquisition device 4 includes a receiving station 11 and a multilateration device 12, and the position matching unit 13 acquires the position report 40 by ADS-B from the receiving station 11. Then, the multilaterated MLAT positioning position 100 is acquired from the multilateration device 12, and the position 110 included in the position report 40 is collated with the MLAT positioning position 100. When the MLAT positioning position 100 acquired from the multilateration device 12 and the position 110 included in the position report 40 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). .. If these do not match, that is, if the error between the position 110 included in the position report 40 and the MLAT positioning position 100 is outside the predetermined range, the data of the position report 40 is stored in the recording unit 16. In this modified example as well, the position collation unit 13 handles the data of the position report 40 determined to be incorrect in the same manner as in the example of FIG.

Even with such a configuration, the position report 40 can be correctly determined with high reliability as in the effects of the first embodiment, the first and the second modifications described above, and the incorrect position information is referred to in the air traffic control. This eliminates the problem and improves the safety of air traffic control operations. Further, by storing the data of the erroneous position report 40 in the recording unit 14, it is possible to confirm the erroneous position report 40 after the fact.

1, 2 Position matching device 3, 4 ADS-B notification acquisition device 11 Receiving station 12 Multilateration device 13 Position matching unit 14 Position notification acquisition unit 15 MLAT Position acquisition unit 16 Recording unit 30 Aircraft 40 Position notification 41 Response signal 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 MLAT Positioning position 110 Position

Claims (7)

The location report acquisition unit that acquires the location report received from the aircraft,
A multilateration positioning position acquisition unit that acquires the position of the aircraft that has been multilaterated.
A position information collation unit that collates the position of the multilateration positioning with the position included in the position report, and
Equipped with a position matching device
The position information collation unit determines whether the position included in the multilateration positioning matches the position included in the position report, and if they do not match, the position collation device does not transmit the position report to the air traffic control device. The position collation device according to claim 1, further comprising a recording unit for recording the position report when the position included in the position report does not match the position of the multilateration positioning. The collation according to claim 1 or 2 , wherein the position information collation unit performs the collation by determining whether the error between the position measured by the multilateration and the position included in the position report is within a predetermined range. Position matching device. The receiving station that receives the position report from the aircraft and
A multilateration positioning position acquisition unit that acquires the position of the aircraft that has been multilaterated.
A position information collation unit that collates the position by the multilateration positioning with the position included in the position report, and
Have a,
The position information collation unit determines whether the position included in the multilateration positioning matches the position included in the position report, and if they do not match, the ADS-B report acquisition that does not transmit the position report to the air traffic control device. apparatus. The receiving station that receives the position report from the aircraft and
The multilateration unit that performs multilateration positioning of the aircraft and
A position information collation unit that collates the position of the aircraft that has been multilaterated and the position included in the position report, and
Have,
The position information collation unit determines whether the position included in the multilateration positioning matches the position included in the position report, and if they do not match, the ADS-B report acquisition that does not transmit the position report to the air traffic control device. apparatus. Get the location report from the aircraft and
Obtain the position of the aircraft that has been multilaterated,
There line matching the position included in the position report with the multilateration positioning position,
A position collation method in which it is determined whether or not the position included in the multilateration positioning matches the position included in the position report, and if they do not match, the position report is not transmitted to the air traffic control device . The process of acquiring the position report from the aircraft and
The process of acquiring the position of the aircraft that has been multilaterated,
The process of collating the position of the multilateration positioning with the position included in the position report, and
A program that determines whether the position included in the multilateration positioning matches the position included in the position report, and if they do not match, causes the computer to execute a process of not transmitting the position report to the air traffic control device .

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