JP5974510B2 - Processing apparatus, WAM system, mode S address storage method used therefor, and program thereof - Google Patents

Description

  The present invention relates to a processing apparatus, a WAM system, a method for storing a mode S address used therefor, and a program therefor, and more particularly, to an expansion of a mode S address storage method in a WAM (Wide Area Multilation) system.

  The WAM system includes a plurality of (four or more) receiving stations that receive and decode a signal (response signal) transmitted from an aircraft, and a processing device that calculates the position of the aircraft based on the decoded signal transmitted from the receiving station. It is configured.

  In this WAM system, when receiving an individual identification response (hereinafter referred to as a Roll Call response) for the purpose of continuously tracking a specific aircraft, a reliability check is performed to confirm whether the signal is a signal from a tracking target aircraft. It is carried out. Therefore, in order to perform the reliability check, the mode S address of the aircraft (information for identifying the aircraft in the WAM system) is required, and the mode S address of the aircraft in the system coverage area needs to be accumulated.

  Here, the Roll Call response is a response signal to an individual question transmitted to the aircraft after the radar site of SSR (Secondary Survey Radar) initially acquires the aircraft.

  The extraction and storage of the mode S address in the WAM system relevant to the present invention is directed to the acquisition squitter signal and the extended squitter signal transmitted from the aircraft. The acquisition squitter signal is a signal that the aircraft spontaneously transmits and includes a mode S address and the like. The extended squitter signal is a signal spontaneously transmitted by the aircraft, and includes a mode S address, an aircraft position, and the like.

  The SSR radar site transmits a mode S batch interrogation signal to all aircraft in the coverage area for initial acquisition of the aircraft, and the aircraft receives a mode S batch response (hereinafter referred to as a response to this signal). , All Call response) is transmitted.

  The extraction and accumulation of the mode S address from the All Call response requires the interrogator identifier [II (Interrogator Identifier) / SI (Surveyance Identifier)) assigned to the radar site of the SSR. Discarded. In addition, there exists a technique of the following patent documents 1-3 about SSR.

JP 2008-146450 A JP 2008-175784 A JP 2010-286352 A

  In the WAM system related to the present invention described above, a reliability check is performed when a Roll Call response is received for the purpose of continuously tracking a specific aircraft. In order to perform the reliability check, the mode S address of the aircraft is required, and it is necessary to accumulate the mode S address of the aircraft in the system coverage area.

  However, the accumulation of the mode S address is performed only for the capture squitter signal and the extended squitter signal transmitted from the aircraft, and is assigned to each radar site in order to extract the mode S address from the All Call response. Since an interrogator identifier (II / SI) is required, a WAM system that does not have an interrogator identifier (II / SI) cannot extract or store the mode S address from the All Call response. The above-mentioned patent departments Ken 1 to 3 are inventions related to an SSR system having its own site ID [interrogator identifier (II / SI)], and cannot solve this problem.

  Accordingly, an object of the present invention is to solve the above-mentioned problems, extract a mode S address from an All Call response and store it, and a processing apparatus and a WAM system capable of improving the number of aircrafts to be continuously tracked Another object of the present invention is to provide a method for storing a mode S address used therefor and a program therefor.

The processing apparatus according to the present invention includes a plurality of receiving stations that receive and decode response signals transmitted from an aircraft, and a processing apparatus that calculates the position of the aircraft based on the decoded signals transmitted from each of the receiving stations. A device is used for a WAM (Wide Area Multilation) system that extracts and stores the mode S address from a captured squitter signal and an extended squitter signal that are spontaneously transmitted from the aircraft and include a mode S address for identifying the aircraft. A processing device comprising:
Means for pre-registering and managing identification information for identifying a radar site having a coverage overlapping the coverage of the WAM system, and a mode S collective inquiry signal transmitted from the radar site to all aircraft in the coverage Means for decoding the mode S batch response signal from the aircraft using the identification information and extracting and storing the mode S address.

  A WAM system according to the present invention includes the above processing device.

A mode S address storage method according to the present invention includes a plurality of receiving stations that receive and decode response signals transmitted from an aircraft, and a processing device that calculates the position of the aircraft based on the decoded signals transmitted from each of the receiving stations. WAM (Wide Area Multilationation) in which the processing device extracts and stores the mode S address from a captured squitter signal and an extended squitter signal that are transmitted spontaneously from the aircraft and include a mode S address for identifying the aircraft ) A mode S address storage method used in the system,
A mode in which the processing device registers and manages in advance identification information for identifying a radar site having a coverage overlapping the coverage of the WAM system, and a mode transmitted from the radar site to all aircraft in the coverage The mode S collective response signal from the aircraft corresponding to the S collective question signal is decoded using the identification information, and the mode S address is extracted and stored.

The program according to the present invention includes a plurality of receiving stations that receive and decode response signals transmitted from an aircraft, and a processing device that calculates the position of the aircraft based on decoded signals transmitted from each of the receiving stations. Used in a WAM (Wide Area Multilatation) system in which a mode S address is extracted from a captured squitter signal and an extended squitter signal that are transmitted spontaneously from the aircraft and include a mode S address for identifying the aircraft A program to be executed by a device,
A process for registering and managing in advance identification information for identifying a radar site having a coverage overlapping the coverage of the WAM system, and a mode S batch query signal transmitted from the radar site to all aircraft in the coverage. And decoding the mode S batch response signal from the aircraft using the identification information and extracting and storing the mode S address.

  By adopting the above-described configuration and operation, the present invention can extract and store the mode S address from the All Call response, and can improve the number of aircraft that are continuously tracked. It is done.

It is a block diagram which shows the structure of the processing apparatus by embodiment of this invention. It is a flowchart which shows the processing operation of the processing apparatus shown in FIG.

  Next, embodiments of the present invention will be described with reference to the drawings. First, an outline of a WAM (Wide Area Multilation) system according to the present invention will be described.

  The present invention provides a method for accumulating a mode S address (information for identifying an aircraft in a WAM system) included in a mode S batch response (hereinafter referred to as an All Call response), a captured squitter signal, and an extended squitter signal in a WAM system. It is to provide.

  Here, the capture squitter signal is a signal that the aircraft spontaneously transmits and includes a mode S address and the like. The extended squitter signal is a signal spontaneously transmitted by the aircraft, and includes a mode S address, an aircraft position, and the like.

  The SSR (Secondary Survival Radar) radar site transmits a mode S batch interrogation signal to all aircraft in the coverage area for initial acquisition of the aircraft, and the aircraft responds to this signal with the mode An S collective response (hereinafter referred to as an All Call response) is transmitted.

  The present invention registers an interrogator identifier [II (Interrogator Identifier) / SI (Surveyance Identifier)] 1 of a radar site (SSR radar site) that overlaps the coverage of the WAM system in the WAM system in advance. By using this interrogator identifier (II / SI), it is possible to decode the All Call response sent from the aircraft, increase the accumulated number of Mode S addresses from there, and improve the number of detected aircraft to be continuously tracked. .

  In the present invention, the interrogator identifier (II / SI) of the radar site whose coverage is overlapped with that of the WAM system is registered in advance, and the mode S address is obtained from the All Call response using this interrogator identifier (II / SI). It becomes possible to extract and the mode S address can be accumulated.

  That is, since the WAM system that does not have a transmission function does not have its own site ID [interrogator identifier (II / SI)], the All transmitted by the aircraft to the radar site that overlaps with the WAM system. The mode S address cannot be extracted from the Call response.

  Therefore, in the present invention, the local site ID [interrogator identifier (II / SI)] of a radar site having a coverage overlapping with the coverage of the WAM system is registered and managed in advance in the WAM system. The mode S address can be extracted from the Call response.

  FIG. 1 is a block diagram showing a configuration of a processing apparatus according to an embodiment of the present invention. The WAM system according to the embodiment of the present invention has a plurality of (four or more) receiving stations that receive and decode a signal (response signal) transmitted from an aircraft, and has the configuration shown in FIG. 1 and is transmitted from the receiving station. And a processor that calculates the position of the aircraft based on the decoded signal.

  1, the processing apparatus according to the embodiment of the present invention includes an II / SI management unit (II / SI CNTRL) 2, a mode S address extraction unit (All Call Error Correction) 5, and a PI (Parity Interrogator) discrimination unit. (PI JUDGE) 6, II / SI comparison unit (II / SI COMP) 7, address table management unit (WRn CNTRL) a8, address table management unit (WRn CNTRL) b9, mode S address table a10, Mode S address storage unit (Mode-S ADRS REG) a11, Mode S address table b12, Mode S address storage unit (Mode-S ADRS REG) b13, Mode S address management unit (Timer Reset CNTRL) a14, A mode S address management unit (Timer Reset CNTRL) b15, an address management unit (REG CONT) 16, a mode S address extraction unit (Roll Call Correction) 18, and a mode S address comparison unit (ADR COMP CNTRL) 19 Has been.

  The II / SI management unit 2 manages an interrogator identifier (II / SI) 1 of a radar site (not shown) having a coverage overlapping the coverage of the WAM system. The mode S address extraction unit 5 extracts the mode S address included in the All Call response 3, the capture squitter, and the extended squitter 4 transmitted from an aircraft (not shown).

  The PI discriminating unit 6 discriminates whether the input signal is an All Call response 3, a capture squitter or an extended squitter 4. The II / SI comparison unit 7 compares the interrogator identifier (II / SI) in the All Call response 3 with the interrogator identifier (II / SI) 1 managed by the II / SI management unit 2.

  The address table management unit a8 manages the mode S address table a10 of the All Call response 3. The mode S address accumulation unit a11 accumulates the mode S address of the All Call response 3. The mode S address management unit a14 deletes the mode S address that is no longer necessary in the mode S address table a10.

  The address table management unit b9 manages the mode S address table b12 of the capture squitter and the extended squitter 4. The mode S address storage unit b13 stores the mode S addresses of the capture squitter and the extended squitter 4. The mode S address management unit b15 deletes the mode S address that is no longer necessary in the mode S address table b12.

  The address management unit 16 compares the mode S address stored in the mode S address table a10 with the data stored in the mode S address table b12. If there is an identical address, the address management unit 16 reads the address from the mode S address table a10. Is deleted.

  The mode S address extraction unit 18 extracts the mode S address from the individual identification response (hereinafter referred to as Roll Call response) 17 sent from the aircraft. Here, the Roll Call response 17 is a response signal to an individual question transmitted to the aircraft after the SSR radar site initially acquires the aircraft.

  The mode S address comparison unit 19 compares the mode S address extracted from the Roll Call response 17 with all the mode S addresses in the mode S address table a10 and the mode S address table b12.

  FIG. 2 is a flowchart showing the processing operation of the processing apparatus shown in FIG. A method for accumulating the mode S address extracted from the All Call response 3 in the WAM system according to the present embodiment will be described with reference to FIGS. The processing operation shown in FIG. 2 can also be realized by a CPU (central processing unit) (not shown) of the processing apparatus according to the present embodiment executing a program.

  In the processing apparatus according to the present embodiment, the II / SI management unit 2 manages the interrogator identifier (II / SI) 1 of the radar site having a coverage overlapping the coverage of the WAM system (step S1 in FIG. 2).

  The mode S address extraction unit 5 extracts the mode S address included in the All Call response 3, the capture squitter, and the extended squitter 4 (step S2 in FIG. 2).

  The PI determination unit 6 monitors the value of the PI field (refer to Parity Interrogator identifier, ICAO Annex 10 Aerological Communications vol IV) of the mode S data used to extract the mode S address. The PI discriminating unit 6 discriminates whether the mode S data is an All Call response (PI ≠ 0) or a capture squitter and an extended squitter (PI = 0) (step S3 in FIG. 2).

  The II / SI comparison unit 7 includes an interrogator identifier (II / SI) included in the PI field of the mode S data determined to be an All Call response, and an interrogator identifier (II / SI managed by the II / SI management unit 2). ) 1 is compared (step S4 in FIG. 2).

  If the interrogator identifier (II / SI) matches as a result of comparison by the II / SI comparison unit 7 (step S5 in FIG. 2), the mode S address extracted by the mode S address extraction unit 5 from the mode S data is changed. The true value is stored in the mode S address storage unit a11 of the mode S address table a10 by the address table management unit a8 (step S6 in FIG. 2).

  If the interrogator identifier (II / SI) does not match as a result of comparison by the II / SI comparison unit 7 (step S5 in FIG. 2), the mode S address extracted by the mode S address extraction unit 5 is set as a false value. Discard (step S7 in FIG. 2).

  The mode S address of the mode S data determined as the capture squitter and extended squitter 4 by the PI determination unit 6 is accumulated in the mode S address accumulation unit b13 of the mode S address table b12 by the address table management unit b9 (step in FIG. 2). S8).

  The address management unit 16 always checks whether there is an overlap between the mode S address stored in the mode S address table a10 of the All Call response 3 and the mode S address stored in the mode S address table b12. Monitor.

  When the same mode S address is accumulated in the mode S address table a10 and the mode S address table b12, the address management unit 16 deletes the mode S address from the mode S address table a10 (step S9 in FIG. 2).

  The mode S address that is not stored in the mode S address table b12 and is not deleted from the mode S address table a10 is determined by the mode S address management unit a14 when the aircraft passes through the system coverage (parameter setting value) (hereinafter referred to as “deletion”). (Time parameter a ") is maximized, and the mode S address table a10 is sequentially automatically deleted (step S10 in FIG. 2).

  The mode S address storage unit a11 from which the mode S address has been deleted is managed by the address table management unit a8 as an unused mode S address storage unit a11.

  The mode S address accumulated in the mode S address table b12 is managed by the mode S address management unit b15, and the transmission rate of the capture squitter + α (= about 1.3 seconds) (parameter set value) (hereinafter referred to as “deletion time parameter”). b ”) and then automatically and sequentially deleted from the mode S address table b12 (step S11 in FIG. 2).

  The mode S address storage unit b13 from which the mode S address has been deleted is managed by the address table management unit b9 as an unused mode S address storage unit b13.

  The mode S address extracted from the All Call response 3, the capture squitter and the extended squitter 4 is constantly monitored and deleted so that the same mode S address does not exist in the mode S address table a10 and the mode S address table b12. It is automatically deleted by the time parameter a and the deletion time parameter b.

  Therefore, the necessary minimum mode S address always exists in the mode S address table a10 and the mode S address table b12. Further, when the aircraft goes out of the coverage area and cannot receive a signal, it is automatically deleted from the mode S address table a10 and the mode S address table b12, and therefore is no longer subject to processing.

  In the processing apparatus according to the present embodiment, by repeating the above processing, the leakage and waste of the mode S address are eliminated, and the mode S address is managed by the mode S address table a10 and the mode S address table b12.

  On the other hand, the mode S address extracting unit 18 decodes (decodes) the Roll Call response 17 sent from the aircraft to extract the mode S address (+ data), and the mode S address comparison unit 19 passes through the mode S address table. a10 and the mode S address in the mode S address table b12 are compared, and the subsequent processing is performed according to the comparison result.

  At this time, since the mode S address table a10 and the mode S address table b12 have the minimum necessary mode S addresses, the number of comparison processes can be reduced, and a processing delay or the like can be avoided.

  Thus, in the present embodiment, the interrogator identifier (II / SI) 1 of the radar site that overlaps the coverage of the WAM system is registered in advance, so that the interrogator identifier (II / SI) 1 is obtained. Can be used to decipher the All Call response 3, and the mode S address contained in the signal can be extracted and stored. Further, in the present embodiment, the initial acquisition of the aircraft is accelerated, and the number of detected aircraft to be continuously supplemented can be improved.

  Further, in this embodiment, the old mode S address registered in the mode S address table a10 and the mode S address table b12 is deleted by the management of the mode S address management unit a14 and the mode S address management unit b15. Since the parameter a and the deletion time parameter b are automatically deleted, the mode S address table a10 and the mode S address table b12 through the mode S address comparison unit 19 when the Roll Call response 17 sent from the aircraft is received are stored. Mode S address comparison can be processed efficiently.

  The present invention is a mode S address accumulation method in a passive reception system, and can also be used in the field of HMU (Height Monitoring Unit) and ADS-B (Automatic Dependent Surveillance-Broadcast) systems.

1 Interrogator identifier (II / SI)
2 II / SI Management Department (II / SI CNTRL)
3 All Call Response 4 Capture Squitter, Extended Squitter 5 Mode S Address Extraction Unit (All Call Error Correction)
6 PI discriminator (PI JUDGE)
7 II / SI comparator (II / SI COMP)
8 Address table management unit (WRn CNTRL) a
9 Address table management unit (WRn CNTRL) b
10 Mode S address table a
11 Mode S address storage unit (Mode-S ADRS REG) a
12 Mode S address table b
13 Mode S address storage unit (Mode-S ADRS REG) b
14 Mode S Address Management Unit (Timer Reset CNTRL) a
15 Mode S Address Management Unit (Timer Reset CNTRL) b
16 Address management unit (REG CONT)
17 Roll Call Response 18 Mode S Address Extraction Unit (Roll Call Correction)
19 Mode S address comparator (ADR COMP CNTRL)

Claims (10)

W AM A is that the processing device used (Wide Area Multilateration) system,
Means for extracting and storing the mode S address from an acquisition squitter signal and an extended squitter signal that are transmitted spontaneously from an aircraft and include a mode S address for identifying the aircraft;
Means for pre-registering and managing identification information for identifying a radar site having a coverage overlapping the coverage of the WAM system;
By decoding the mode S batch response signal from each aircraft with respect to the mode S batch query signal transmitted from the radar site to all the aircraft in the coverage area using the identification information , the mode S batch response signal is Means for extracting and storing the mode S address ;
Processing apparatus comprising a. The processing device stores a first table that stores the mode S address extracted from the mode S batch response signal, and a second table that stores the mode S address extracted from the captured squitter signal and the extended squitter signal. 2. The processing apparatus according to claim 1, further comprising a table and means for constantly monitoring such that the same mode S address does not exist in each of the first and second tables. The processing unit, a is the mode S address stored in said first table, successively remove the time the region covering the WAM system each aircraft passes a maximum,
The processing unit, a is the mode S address stored in said second table, sequentially deleted after the transmission rate + predetermined value of the acquisition squitter signal,
The processing apparatus according to claim 2. The identification information, the process according to the interrogator identifier [II (Interrogator Identifier) / SI (Surveillance Identifier)] any one of claims 3 to 請 Motomeko 1 Ru der radar sites SSR (Secondary Surveillance Radar) apparatus. WAM (Wide Area Multilateration) system comprising a processor according to any one of claims 4 請 Motomeko 1. WAM A (Wide Area Multilateration) Mode S address of the storage method in the are that the processing device used in the system,
The processing device extracts and stores the mode S address from a captured squitter signal and an extended squitter signal that are transmitted spontaneously from an aircraft and include a mode S address for identifying the aircraft;
The processing device registers and manages in advance identification information for identifying a radar site having a coverage overlapping the coverage of the WAM system ; and
By the processing device decrypts the mode S collective response signals from each aircraft against the mode S all-call interrogation signals to be transmitted to all aircraft in the region covering from the radar site using the identification information, said mode Extracting and storing the mode S address from the S batch response signal ;
A mode S address accumulation method comprising: The processing device, a first table for storing the mode S address extracted from the mode S collective response signal, a second for storing the mode S address extracted from the captured squitter signals and extended squitter signals Managing the table, and the processing device constantly monitors so that the same mode S address does not exist in each of the first and second tables ,
The method of claim 6 , further comprising : The managing is
The is the mode S address stored in the first table, are sequentially remove the region covering the WAM system as the maximum time that the aircraft passes, and the stored mode S address in the second table, sequentially deleted after the transmission rate + predetermined value of the acquisition squitter signal,
8. The method for accumulating a mode S address according to claim 7 , further comprising : Wherein the identification information is, SSR (Secondary Surveillance Radar) interrogator identifier [II (Interrogator Identifier) / SI (Surveillance Identifier)] of the radar site mode according to any one of claims 8 請 Motomeko 6 Ru der S address accumulation method. WAM A (Wide Area Multilateration) program for causing definitive mode S address method accumulated is that the processing device used in the system to the computer,
The accumulation method is:
Extracting and storing the mode S address from a captured squitter signal and an extended squitter signal transmitted spontaneously from an aircraft and including a mode S address for identifying the aircraft;
And this is registered in advance manages identification information for identifying the radar site with a cover area that overlaps the covering area of the WAM system, and
By decoding the mode S batch response signal from each aircraft with respect to the mode S batch query signal transmitted from the radar site to all the aircraft in the coverage area using the identification information , the mode S batch response signal is Extracting and storing the mode S address ;
A program comprising:

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