JPH11306500A - Address managing system, aircraft control system and its method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To transmit communication from the ground to a satellite earth station only by log-on notice reception by identifying an aircraft number and a logic line, which are required for executing an up link, and executing correspondence with AES-ID at the time of receiving log-on notice reception. SOLUTION: Once a repeating processing system 2 has received log-on notice (1) through GES3 from an aircraft, the connection notice (terminal connection notice (2)) of a pertinent logic line is reported to a line control function 22 controlling the line through an X.25 control function 21. The line control function 22 executes the connection work of the line and informs a message repeating function 23 repeating a subsequent message of effect that the line is connected (terminal active notice (3)). In the connection notice of a ground control organization 1 being a terminal, the identification of the logic line, the address (AED-ID) of an aircraft side terminal and an aircraft number are reported to the line control function 22 controlling the line against terminal active notice.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an address management system in data link communication, and more particularly to a computer repeater for performing data link communication, in which an aircraft and a GES (Gr.
ound Earth Station (Sound Earth Station): An address management method and aircraft management system that acquire aircraft numbers from logon information (connection requests) notified when communication is established, associate them with logical line addresses, and manage them. .

[0002]

2. Description of the Related Art Conventionally, an aircraft monitoring system between an aircraft and a ground control agency is operated with a data link system configuration shown in FIG. According to FIG. 1, the aircraft 5 notifies the ground control agency 1 of its position, the time at which it returns to the airport, the presence of its own device for receiving a broadcast notification, etc., and establishes its own management system. It is required to operate safely. FIG.
In the above, the ground control agency 1 notifies the relay processing system 2 of a data wireless communication signal including a message so that the aircraft 5 can be put into the management system, and the GES (satellite earth station) 3
, And transmits a signal to the satellite station 4 as an uplink, and the satellite station 4 performs a relay function for frequency conversion and the like.
Send to In order to enter the management system, the aircraft 5 has its own aircraft number and its own position such as longitude, latitude and height,
A message including the port of call and the like is transmitted to the satellite station 4, and the satellite station 4 is input to the ground control agency 1 via the GES (satellite earth station) 3 and the relay processing system 2 as a downlink. The ground control organization 1 interprets the message and puts the aircraft 5 into a management system, and thereafter monitors the aircraft 5.

[0003] Such a monitoring / communication system for the aircraft 5 is described in Japanese Patent Publication No. 10-501058. According to this publication, the United States Aerospace System (NA
S) Navigation, surveillance and communications are central to the provision of internal air traffic control (ATC) services. This navigation allows the aircraft to fly along its assigned route, monitoring allows the collection of information about the location of the aircraft, and air-to-ground communication allows A-
Allows delivery of TC commands and receipt of data and requests from pilots. NAS has these major ATC
It has a wide range of existing substructures that support functions. Such an air traffic control system is similarly set in Japan. When such an aerospace system links an aircraft to a ground control agency, it is set up as a logical link through a login-type process that assigns a new user a unique ID for the session. Upon entry into a sector, each aircraft is assigned a connection ID that uniquely identifies the aircraft for the duration of the session. This connection ID is one byte, and another unique session ID is used to address all aircraft in one sector or a subset of aircraft in one sector.
In connection ID assignment, one burst is used in the ground-to-air subframe and transmitted to the aircraft.

In the conventional address management system, since the aircraft number is not notified in the logon notification, it is not possible to associate the aircraft number with the logical line identification only by the logon notification. Therefore, when actually receiving the downlink message, the ground control agency needs to associate the line that received the message with the aircraft number of the aircraft that actually transmitted the message.

A conventional address management system will be described with reference to FIG. According to FIG. 4, GES (Satellite Earth Station)
Corresponding to X. 25 relay processing system 2 comprising a control function, a line control function, and a message relay function
Is configured. Here, X. 25 control function is a DTE / DCE interface of a packet mode terminal connected to a public data network by a dedicated line.
In the basic reference model, the physical layer: 25 physical levels (X.21 / x.21bi)
s) Data link layer: 25 link level (LAPB) Network layer: 25 packet level (X.25). X. X.25 control functions are controlled by an external system and X.25.
While the communication control when performing communication in the communication procedure of 25 is performed, the line control function controls the connection and disconnection of the line, and the message relay function reads the inside of the message transmitted in the packet format. And performs message conversion corresponding to the line to be transmitted, and these are included in the relay processing system 2 in FIG.

[0006] There, first, when the GES receives a message from an aircraft, X. 25 Notify to log on to control function unit. X. 25 The control function unit notifies the line control unit to control the terminal. The line control unit notifies the message relay function unit to activate the terminal. afterwards,
GES is X. A downlink is configured with the control function unit. The 25 control function unit forms a downlink with the message relay function unit via the line control unit. Subsequently, the message relay function unit performs X. X.25 and a control function unit, and X.25. The 25 control function unit forms an uplink with the GES. In this way, an up-down link between the aircraft and the ground control station is formed, an aircraft monitoring system is established, and address management of the aircraft is completed.

The GES (satellite earth station) is one of the systems that perform data link communication with satellites. In communication with the relay processing system, X.264 is used as a data link layer protocol. 25 is used. When communication with the aircraft is established, the GES notifies the relay processing system of the fact as logon information (connection request).

A relay processing system for data link communication with an aircraft is a GES that directly communicates with the aircraft.
(Satellite earth station), which is located between the aircraft control system on the ground and manages connected lines and addresses and routes messages to be relayed.

[0009] The logon information is actually X. 25
Is sent as a call request packet of
In the present invention, an aircraft number is added to a field called UD (Call User Data) for notification.

[0010] Further, the uplink refers to a message transmitted from the ground side to the aircraft in communication between the ground computer and the aircraft, and refers to transmission in the opposite direction (transmission from the aircraft to the ground). Call it downlink.

In uplink communication, an aircraft number is used as a destination address between a ground computer and a computer repeater. In the communication between the computer repeater and the GES, since a logical line is established for each communication with each aircraft, it is necessary to associate the aircraft number with the address of the logical line in the processing of the computer repeater. Becomes

As described above, according to the present invention, the association between the aircraft number and the logical line is performed when the logon information (connection request) is received, so that the uplink communication can be performed when the line is established.

[0013]

However, in the above-mentioned aircraft address management system, even if it is known that the communication state itself has been established, it is impossible to actually perform uplink from the ground because of the above-mentioned configuration. It was impossible. In this system, when the aircraft logs on, a logical connection is made with the GES. However, in the above-described conventional technology, the aircraft number specified by the uplink from the ground control organization at this time is held as information. Therefore, the relay processing system cannot relay the communication with the GES and the communication from the ground control agency.

[0014] It is an object of the present invention to receive an aircraft number at the timing when the connection between such a relay processing system and the GES is made on the aircraft side, thereby enabling uplink at that timing.

[0015]

SUMMARY OF THE INVENTION The present invention achieves the above object and includes an aircraft, a satellite station for transmitting and receiving the aircraft, and a GES (Ground Earth Station) for transmitting and receiving the satellite.
An air traffic control system comprising: a satellite earth station); a relay processing system for transmitting / receiving to / from the GES; and a ground control organization for transmitting / receiving to / from the GES, the address management system performing data link communication in data link communication. Management means for managing an aircraft by acquiring an aircraft number from logon information (connection request) notified when communication between the aircraft and the GES is established, and associating the aircraft number with an address of the aircraft on a logical line. When the aircraft number is not added from the logon information, the aircraft number is acquired using call user data (CUD: calling of user data) to manage the aircraft.
Is characterized by having a management means.

Further, the present invention relates to an AES (Aircfaft Earth
Station) and GEs to and from the aircraft
In an aircraft control system including an S (Ground Earth Station), a relay processing system for transmitting and receiving the GES, and a ground control agency for transmitting and receiving the relay processing system, a communication between the airplane and the ground control agency is performed. Address management means for performing data link communication in data link communication, and obtaining an aircraft number from logon information (connection request) notified at the time of establishing communication between the aircraft and the GES. A managing means for managing the aircraft by performing association, and when the aircraft number is not added from the logon information, the aircraft number is obtained by using call user data (CUD: calling of user data) to acquire the aircraft number. Manage the second
Is characterized by having a management means.

Further, the present invention provides an AES (Aircfaft Ear
th Station), and G transmitting and receiving
In a control method for an aircraft control system including an ES (Ground Earth Station), a relay processing system for transmitting and receiving the GES, and a ground control engine for transmitting and receiving the relay processing system, the aircraft, the GES, The aircraft number is acquired from the logon information (connection request) notified when the communication is established, and the aircraft is managed by associating it with the address of the aircraft on a logical line, and the aircraft number is not added from the logon information. At this time, the aircraft number is obtained using call user data (CUD: calling of user data) to manage the aircraft.

[0018]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An address management system in data link communication according to an embodiment of the present invention will be described in detail with reference to the drawings.

In FIG. 1, the address management method is based on an aircraft 5 and a GES3 (Global Earth Station).
The satellite station 4 is disposed between the GES 3 and the GES 3 to configure an uplink from the GES 3 to the aircraft 5 and a downlink from the aircraft 5 to the GES 3. Further, the GES 3 and the ground control agency 1 use the microwave line or the dedicated line, and the ground control agency 1 performs the ground control of the aircraft 5 via the relay processing system 2. The relay processing system 2 is located between the GES 3 and the system of the ground control agency 1, and relays messages. In addition, the ground control agency 1 is an agency that performs operations for the aircraft 5, and has a task of guiding aircraft between airports and airports (referred to as an enroute) instead of taking off and landing near the airport. The AES is a mechanical device mounted on the aircraft 5 and communicating with the satellite station 4. Also, AES-
The ID is set for each AES of the aircraft, and is stored in a memory in the AES.

FIG. 2 shows (1) the correspondence relationship between an outgoing call, an incoming call, and an abnormal state between an aircraft and a computer repeater when an aircraft number is added. Also, (2) shows a correspondence relationship between a call from the aircraft and the computer repeater to an incoming call and an abnormality when the aircraft number is not added.

The procedure for setting up a call will be described with reference to FIG. (1) When an aircraft number is added, and (2)
In the case where the aircraft number is not added, both CN (incoming call) and C
In the order of A (Call Accepted: connection response), first, an open request and an open completion packet are transmitted and received from the aircraft via the GES by the relay processing system, and the line is opened.

(1) CQ (Clear reQuest) in the case where an aircraft number is added discovers an abnormality, so the call is reestablished again (cleared).

Also, (2) DT (Data) and RR (Receive Ready: acknowledgment of data reception) when the aircraft number is not added are as follows.
If it seems extra but the aircraft number is not added,
Until this exchange takes place, messages from ground control agencies cannot be uplinked to the aircraft.

FIG. 3 shows a processing flow of the address management system. In the figure, X. The X.25 control function 21 communicates with an external system. 25 controls communication when performing communication according to the communication procedure, while the line control function 22 controls the connection and disconnection of the line, and the message relay function 23 controls the inside of a message transmitted in a packet format. And perform message conversion etc. corresponding to the line to be transmitted,
These are included in the relay processing system 2 of FIG. The relay processing system 2 transmits and receives data including a message to and from the ground control agency 1 that controls the aircraft 5.

AES (Ai) mounted on an aircraft
rcraft Earth Station) uses the DTE
(Data Terminal Equipment) Communication is performed using an address unique to each aircraft called an address.

Since the DTE address is set based on the unique AES-ID of AES, an aircraft (actually, AES) can be specified from the DTE address. The GES further has a memory table that associates the AES-ID with the aircraft number, and sets the aircraft number.

The protocol ID is actually X. The setting is defined in a protocol called CUD25, which is set in an area in a packet called CUD (call user data), and what is used as a higher-level protocol is set. In this case, the protocol ID and the aircraft number need to be set with different meanings.

The logon (connection) from the aircraft to the GES is performed by the AES (Aircraft Earth Statio) on the aircraft.
This is performed by the DTE address of n). GES is D
The AES-ID of the aircraft 5 is obtained from a TE (Data Terminal Equipment) address to specify the calling aircraft 5. The connection (calling) to the relay processing system 2
The protocol ID and the aircraft number are included in the call user data (C
In addition to UD), the data of the aircraft number is set in the area of CUD.

The relay processing system 2 saves the aircraft number existing in the call user data (CUD) and returns the call completion (CA). After the call is set up, downlink / uplink data transfer is performed using the stored aircraft number as a key.

(Explanation of the Operation of the Present Embodiment) In the relay processing system 2, upon receiving a logon notice (FIG. 3) from the aircraft 5 via the GES 3, 25 control functions 21
, A connection notification (terminal connection notification (FIG. 3)) of the corresponding logical line is sent to the line control function 22 for controlling the line. The relay processing system 2 that controls the line 25
, A line control function 22 and a message relay function 23. The line control function 22 first performs a line connection operation, and then notifies the message relay function 23 that relays a message that the line has been connected (terminal activation notification (FIG. 3)). At this time, the connection notification of the terminal includes the identification of the logical line and the address (A
ES-ID) and the aircraft number are notified to the function for controlling the line. The line control function 22 for controlling the line sets the information in the table as a set of information.

In the message relay processing function for actually processing a message, a message indicating that the terminal is activated by a terminal activation notification call as a logical connection unit of a line of a terminal is recognized, and which line is connected is recognized. If a message is received from a computer on the ground (ground control system), the GES side is notified of the identification of the logical line and the uplink (FIG. 3) using the aircraft number included in the message transmitted from the ground as a key. X.
25 Send message to control function.

In this system, when the aircraft logs on,
A logical connection can be made with the GES, and the aircraft number specified by the uplink from the ground control agency can be held as information.
The communication between S and the communication from the ground control organization can be effectively relayed.

In this embodiment, by receiving the aircraft number at the timing when the connection between the relay processing system and the GES is made on the aircraft side, it is possible to perform uplink at that timing.

[0034]

As described above, according to the present invention,
At the time of receiving the logon notification, the identification of the aircraft number required for performing the uplink, the identification of the logical line, and the correspondence with the AES-ID are performed. Therefore, the ground communication can be transmitted to the GES only by receiving the logon notification. The effect can be obtained.

[Brief description of the drawings]

FIG. 1 is a schematic configuration diagram of the present invention and a conventional data link.

FIG. 2 is an explanatory diagram of a data link address management method according to the present invention.

FIG. 3 is an explanatory diagram of a data link address management method according to the present invention.

FIG. 4 is an explanatory diagram of a conventional data link address management method.

[Explanation of symbols]

 1 Ground control organization 2 Computer repeater 3 GES 4 Satellite station 5 Aircraft 21 X. 25 control function 22 line control function 23 message relay function

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[Procedure amendment]

[Submission date] August 9, 1999

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] Claims

[Correction method] Change

[Correction contents]

[Claims]

[Procedure amendment 2]

[Document name to be amended] Statement

[Correction target item name] 0009

[Correction method] Deleted

[Procedure amendment 3]

[Document name to be amended] Statement

[Correction target item name] 0010

[Correction method] Deleted

[Procedure amendment 4]

[Document name to be amended] Statement

[Correction target item name] 0011

[Correction method] Deleted

[Procedure amendment 5]

[Document name to be amended] Statement

[Correction target item name] 0012

[Correction method] Deleted

[Procedure amendment 6]

[Document name to be amended] Statement

[Correction target item name] 0023

[Correction method] Change

[Correction contents]

(2) When no aircraft number is added
DT (Data) and RR (Receive) when the aircraft number is not added after the line is opened.
Ready: acknowledgment of data reception) is an extra step for setting up a call, but if an aircraft number is not added, a message from the ground controller will be sent to the aircraft until this exchange takes place. Cannot link.

[Procedure amendment 7]

[Document name to be amended] Statement

[Correction target item name] 0024

[Correction method] Change

[Correction contents]

FIG. 3 shows a processing flow of the address management system. In the figure, X. The X.25 control function 21 is composed of external systems GES3 and X.25 . In contrast to the control of communication when performing communication according to the communication procedure 25, the line control function 2
Reference numeral 2 supervises control such as connection and disconnection of a line, and a message relay function 23 reads the inside of a message transmitted from the ground control agency 1 in a packet format and performs message conversion and the like corresponding to the line to be transmitted. Are included in the relay processing system 2 of FIG. The relay processing system 2 transmits and receives data including a message to and from the ground control agency 1 that controls the aircraft 5.

[Procedure amendment 8]

[Document name to be amended] Statement

[Correction target item name] 0030

[Correction method] Change

[Correction contents]

(Explanation of the Operation of the Present Embodiment) In the relay processing system 2, upon receiving a logon notice (FIG. 3) from the aircraft 5 via the GES 3, 25 control functions 21
, A connection notification (terminal connection notification (FIG. 3)) of the corresponding logical line is sent to the line control function 22 for controlling the line. The relay processing system 2 that controls the line 25
, A line control function 22 and a message relay function 23. The line control function 22 first performs a line connection operation, and then notifies the message relay function 23 that relays a message that the line has been connected (terminal activation notification (FIG. 3)). At this time, the terminal activation
On the other hand, the connection notification of the ground control agency 1 as the terminal identifies the logical line and the address (AES-I
D) Line control function 22 for controlling the line with the aircraft number
Notify. The line control function 22 for controlling the line sets the information as a set of information in a built-in memory table.

Claims (6)

[Claims] 1. An aircraft, a satellite station for transmitting and receiving the aircraft, and a GES (Ground Earth Station) for transmitting and receiving the satellite.
An air traffic control system comprising: a satellite earth station); a relay processing system for transmitting / receiving to / from the GES; and a ground control organization for transmitting / receiving to / from the GES, the address management system performing data link communication in data link communication. A management unit that obtains an aircraft number from logon information (connection request) notified when communication between the aircraft and the GES is established, associates the aircraft number with a logical line address of the aircraft, and manages the aircraft. And a second management unit for managing the aircraft by acquiring the aircraft number using call user data (CUD: calling of user data) when the aircraft number is not added from the logon information. Address management method. 2. The relay processing system, comprising: X. which controls communication when performing communication in the communication procedure of X.25. 25 a control function, a line control function for controlling the connection and disconnection of the line, and a message relay function for reading the inside of a message transmitted in packet format and performing message conversion and the like corresponding to the line to be transmitted. 2. The address management method according to claim 1, wherein the address management method is provided. 3. An aircraft equipped with an AES (Aircfaft Earth Station), and a GES (Ground Ear) transmitted to and from the aircraft.
th Station: an earth station), a relay processing system for transmitting and receiving the GES, and a ground control organization for transmitting and receiving the relay processing system, wherein a data link is provided between the airplane and the ground control organization. Address management means for performing data link communication in communication; acquiring an aircraft number from logon information (connection request) notified at the time of establishing communication between the aircraft and the GES, and associating the aircraft number with a logical line address of the aircraft; Management means for managing the aircraft by performing, and when the aircraft number is not added from the logon information, managing the aircraft by acquiring the aircraft number using call user data (CUD: calling of user data) An aircraft control system having a second management unit. 4. The relay processing system according to claim 1, wherein the relay processing system is connected to an external system. X. which controls communication when performing communication in the communication procedure of X.25. 25 a control function, a line control function for controlling the connection and disconnection of the line, and a message relay function for reading the inside of a message transmitted in packet format and performing message conversion and the like corresponding to the line to be transmitted. Have
The aircraft control system according to claim 3, wherein an uplink to the GES and a downlink from the GES are established. 5. An aircraft equipped with an AES (Aircfaft Earth Station), and a GES (Ground Ear) transmitted to and received from the aircraft.
th Station: an earth station), a relay processing system for transmitting and receiving to and from the GES, and a control method for an aircraft control system including a ground control organization for transmitting and receiving to and from the relay processing system, wherein the communication between the aircraft and the GES is established. The aircraft number is acquired from the logon information (connection request) notified at the time, the aircraft is managed by associating it with the address of the aircraft on a logical line, and when the aircraft number is not added from the logon information, a call is made. An aircraft control method characterized by acquiring the aircraft number using user data (CUD: calling user data) and managing the aircraft. 6. The relay processing system receives the logon information, executes a connection notification of the logical line, and executes a protocol ID in a packet contained in the logon information.
And notification of the activation of the logical line from the CUD and
Notifying the ground control agency, the ground control agency sets the uplink processing system and the G
The aircraft control method according to claim 5, wherein connection between an ES and the aircraft is performed.