JPH0870314A - Terminal number allocation method and terminal monitoring method - Google Patents

Abstract

(57) [Abstract] [Purpose] It is an object to provide a user-friendly terminal number allocation method and a terminal monitoring method for making full use of the network. [Structure] An own address number supplied from each adjacent host computer 10 or terminal 20 is used as an upstream address number, and an address file in which the upstream address number is added to each own address number is created to create the host computer 2
0, the connection order of each terminal 20 is detected from each address file supplied from each terminal 20, the terminal number is assigned to each address number according to the connection order, and the assignment result is stored in the memory. And a terminal allocation method for causing the terminals 20 corresponding to the respective address numbers to recognize the terminal numbers assigned to the respective address numbers, and periodically detecting the connection order of the terminals 20 by the above method. A terminal monitoring method for detecting a difference between the detection result and the connection order stored in the memory.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a terminal number assigning method and a terminal monitoring method in a token passing communication system in which a plurality of terminals are connected in a ring type. The present invention relates to a method of assigning a terminal number that enables full utilization and a method of monitoring a terminal.

[0002]

2. Description of the Related Art Today, a ring-type LAN (Local A)
(rea Network), communication based on the token passing system has become widespread.

In this token passing communication method, a state in which the right to speak (hereinafter referred to as a token) can be used (hereinafter referred to as a free token) / a token is used and is received by a receiving terminal to which an information signal is supplied. Other than the state where it cannot be used (hereinafter referred to as busy token)
The control packet having a data frame in which information signals and the like can be written / read is circulated in one direction on the transmission path.

For example, when the first terminal sends an information signal to the second terminal, the information signal and the address number of the terminal itself (hereinafter referred to as its own address) are included in the data frame of the control packet which is a free token at the first terminal. Number)) and the receiving address number which is the own address number of the terminal which receives the information signal, are set in the busy token, and the control packet is transmitted to the transmission line.

The second terminal confirms that the reception address number set in the control packet matches its own address number, receives the control packet, and outputs the information signal of the control packet to the second terminal. After storing in the terminal memory which is the memory provided in the terminal, the control packet is marked as stored, the own address number of the first terminal is set as the reception address number, and the second terminal of the second terminal is set. The own address number is set as the transmission address number and sent to the transmission line.

The first terminal confirms that the reception address number set in the control packet matches its own address number, receives the control packet, and detects the stored mark from the control packet. Then, the information signal, the stored mark, the reception address number, and the transmission address number of the control packet are erased, set as a free token, and the control packet is transmitted to the transmission path.

Therefore, in the ring type token passing communication system, the control packet is circulated in one direction to enable communication between arbitrary terminals of the plurality of terminals connected in the ring type.

In the token passing communication, for example, one of the terminals is connected as a host computer, and an information signal is supplied from each terminal to the host computer by using a control packet, so that the host computer manages a plurality of terminals. Such networks are widespread.

[0009]

By the way, in the ring type token passing communication system, it is necessary to recognize the connection order of each terminal and set the transmission address number and the reception address number in the control packet for communication. There is.

Conventionally, in a ring-type token passing communication system network in which one of the terminals is connected as a host computer, in order to enable the recognition of the connection order of each terminal, the terminal number of each terminal is preset. , And the connection order of the terminal numbers is registered in the host computer.

The setting of the terminal number to each terminal is performed by the operator turning to each terminal to set the terminal number setting mode for each terminal and inputting the key from each terminal. The problem was that it became complicated.

Further, since the registration to the host computer is performed by key input in the host computer by associating each terminal number with the own address of each terminal, there is a problem that the registration operation becomes complicated. Was there.

The setting of the terminal number to each terminal and the registration of the terminal number by the host computer must be performed every time the number of terminals is changed, the terminals are replaced, etc., and the operation becomes complicated. It takes a long time to operate, and there is a problem in that it is inconvenient to use due to a mistake in key input.

After the terminal number is assigned, the information signal supplied from the terminal to the host computer is monitored. Therefore, even if the terminal is not powered on or if the terminal fails, the information signal is sent from the terminal. There is a problem that the network is not fully utilized because the terminal is not sufficiently monitored, for example, it is determined that the network is not supplied.

In view of the above problems, it is an object of the present invention to provide a terminal number assigning method which is easy to use and a terminal monitoring method for fully utilizing the network.

[0016]

A terminal number assigning method according to the present invention is a terminal number assigning method in a token passing communication type communication network in which one host computer and a plurality of terminals are connected in a ring type. In the host computer, the terminal number setting step of arbitrarily setting the terminal number of each terminal, and the host computer, and the plurality of terminals, from the address numbers set in advance in a one-to-one correspondence Self-address number recognition step of recognizing the self-address number which is the address number of the host computer, and sending the self-address number to the host computer and next to each of the plurality of terminals, and sending the self-address number supplied at each terminal upstream. The upstream address number recognition step of recognizing the address number, and the upstream address number recognition process at each of the above terminals Address file creation step of creating an address file with a reply number and sending each address file to the host computer, and in the host computer supplied with each address file, each terminal and host from the address file The connection order of the own address number of the computer is detected, and each terminal address number set in the above terminal number setting step is assigned to each own address number according to this connection order, and the assignment result is stored in the memory. , The terminal number notifying step of notifying the terminal number assigned to the respective own address number to the terminal corresponding to the respective own address number, and each terminal recognizing as the terminal number from the terminal number notified in the terminal number notifying step And a terminal number recognition step.

A terminal monitoring method according to the present invention is a method for monitoring a terminal in a host computer in a token passing communication type communication network in which one host computer and a plurality of terminals are connected in a ring type. , A terminal number setting step of arbitrarily setting the terminal number of each terminal, and the host computer, and an address number which is an address number of each of the plurality of terminals and is set in advance in a one-to-one correspondence Self-address number recognition step of recognizing the self-address number, and sending the self-address number to the host computer and next to each of the plurality of terminals, and recognizing the self-address number supplied by each terminal as the upstream address number. The recognition process and the address in which the upstream address number is added to the own address number on each of the above terminals. An address file creation process of creating a file and sending each address file to the host computer, and detecting the connection order of each terminal and the own address number of the host computer in the host computer to which each address file is supplied Then, there is a connection state monitoring step of comparing the connection order with the connection order stored in advance in the memory and detecting a different point.

[0018]

In the terminal number assigning method according to the present invention, each terminal adds an upstream address number to its own address number to create an address file, and in the host computer, based on the address file supplied from each terminal, Detects the connection order of each own address number, associates each detected connection order of the own address number with a preset terminal number, and notifies the terminal number to the terminal corresponding to each own address number Then, each terminal can be made to recognize the terminal number.

According to the terminal monitoring method of the present invention, in the host computer, the connection order of each own address number is detected based on the address file supplied from each terminal, and the connection order of the detected own address number and The connection state of each terminal can be monitored by comparing the connection order of the own address number stored in the memory in advance.

[0020]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT A preferred embodiment of a terminal number assigning method according to the present invention will be described below with reference to the drawings.

The communication network in which the method for assigning a terminal number according to the present invention is implemented is, for example, a communication network provided in an aircraft, and as shown in FIG. 1, the communication network 30 is capable of token passing communication. A host computer 10 connected in a ring shape to each other, and a plurality of terminals 2 provided for each seat SVU of a plurality of seats SVU
0, the control packet is circulated in the S direction to enable communication.

The host computer 10 controls each seat S
It is one terminal for control that is configured to be able to view and control the usage status of each terminal by the operation of the passengers of the VU by the operation of the crew member. For example, the CSCP 11 for controlling and the information signal CFS to store
It is assumed that they are separated into 12.

In the host computer 10, terminal numbers arbitrarily determined in advance, for example, 1-A, 2-A, 3 according to the connection order of the terminals 20 based on the arrangement of each seat SVU.
-A, 1-B, 2-B, 3-B, 1-C, 2-C, 3-
C is set.

In each of the terminals 20 and the CSCP 11 of the host computer 10, the network address is set in the upper 3 bytes when the network 30 is formed.
It is assumed that the own address number is set to the lower 3 bytes when the terminal is manufactured.

Next, the network 30 having the above configuration
The procedure for allocating the terminal number will be described with reference to FIG.

In step S1, each own address number of each terminal 20 is recognized, and the upstream side neighbor (UNA: Upstream Neighb) of each terminal 20 in the S direction is recognized.
The own address number supplied from or's Address) is recognized as the upstream address number.

In step S2, each terminal 20 creates an address file in which the upstream address number is added to its own address number and notifies the CFS 12 of the host computer 10 of this address file.

For example, as an example of the address file notified from each terminal 20 to the CFS 12 of the host computer 10, the files 1, 2, 3, 4, 5 in which the upstream address number is added to the own address number are shown in Table 1. .

[0029]

[Table 1]

In step S3, the host computer 1
The CSCP 11 of 0 reads the address file of each terminal 20 from the CFS 12 and recognizes the connection order of the host computer 10 and each terminal 20 in the network 30.

For example, the files 1, 2, 3 in Table 1 above
From 4 and 5, the connection order is recognized from the CFS 12 in order as shown in Table 2.

[0032]

[Table 2]

In step S4, the host computer 1
0 CSCP11, host computer 10,
Also, the own address number in the connection order of each terminal 20 is associated with a terminal number preset based on the arrangement of each seat SVU, and the result is stored in the CFS 12.

For example, the own address number in the connection order and the terminal number of the terminal 20 based on the arrangement of the seat SVU are shown in Table 3
It is associated as shown in. However, the own address number is set in the lower 3 bytes and the network address (050014) is set in the upper 3 bytes.

[0035]

[Table 3]

In step S5, the host computer 1
The CFS 12 of 0 notifies each terminal 20 of the terminal number,
The terminal number of each terminal 20 is recognized.

According to the above procedure, the own address number set for each manufacturer in each terminal 20 is associated with the terminal number of the terminal 20 arbitrarily set in advance based on the arrangement of the seat SVU.

As described above, the terminal number may be arbitrarily assigned by the host computer 10 and can be operated by a simple operation.

Further, when the arrangement of the seat SVU is changed or the number of seats is changed such as when the number of seats is changed according to the increase or decrease in the number of passengers for each season, the terminal number arbitrarily assigned by the host computer 10 is , It suffices to note that the total number of terminal numbers matches the number of seats.
Further, the terminal number displayed on the screen can be arbitrarily set according to the arrangement of seats, usability, and the like.

Further, the new terminal 20 is connected to the network 30.
In the case of incorporating into the device, the same use is made possible only by setting the network address in the new terminal 20 and changing the own address number.

As described above, the address file of each terminal 20 in which the terminal number is associated with its own address number is stored in the CFS 12 of the host computer 10. Therefore, by regularly performing the operations of steps S1 to S3, the order of the own address number is detected and compared with the order of the own address number stored in the CFS 12, so that the power source is not turned on. It is possible to monitor the connection state of a terminal, such as detecting a terminal 20 that is not participating in the network due to input or failure.

[0042]

As described above in detail, according to the terminal number assigning method of the present invention, each terminal adds an upstream address number to its own address number to create an address file, and a host computer , The connection order of each own address number is detected based on the address file supplied from each terminal, and each connection order of the detected own address number is associated with a terminal number set in advance, It is possible to notify the terminal number to the terminal corresponding to the own address number so that each terminal can recognize the terminal number.

Therefore, it is only necessary to arbitrarily assign the terminal numbers by the host computer, and it is possible to provide a convenient terminal number assigning method which is possible by a simple operation. Further, when the arrangement of terminals is changed or the number of terminals is changed, it is only necessary to note that the terminal numbers arbitrarily assigned by the host computer match the total number of terminal numbers with the number of terminals. Further, the terminal number displayed on the screen can be arbitrarily set according to the arrangement of seats, usability, and the like. Further, when a new terminal is incorporated into the network, the same use can be achieved by simply setting the change of its own address number in the new terminal.

According to the terminal monitoring method of the present invention,
In the host computer, the connection order of each own address number is detected based on the address file supplied from each terminal, and the connection order of the detected own address number and the connection order of the own address number stored in the memory in advance It becomes possible to monitor the connection state of the terminal by comparing with.

Therefore, it is possible to provide a terminal monitoring method capable of fully utilizing the network by regularly monitoring the connection state of the terminals.

[Brief description of drawings]

FIG. 1 is a configuration diagram of a communication network in which a terminal number allocation method and a terminal monitoring method according to the present invention are implemented.

FIG. 2 is a flowchart of a terminal number allocation method according to the above embodiment.

[Explanation of symbols]

 10 host computer 20 terminal 30 communication network S1 upstream address number recognition step S2 address file creation step S3 to S4 terminal number notification step S5 terminal number recognition step

Claims (2)

[Claims] 1. A method of allocating a terminal number in a communication network of a token passing communication system in which one host computer and a plurality of terminals are connected in a ring type, wherein the host computer assigns the terminal number of each terminal. Self-address number recognition for recognizing the self-address number, which is the self-address number, from the address numbers set in advance in a one-to-one correspondence with the host computer and a plurality of terminals, by arbitrarily setting the terminal number setting step A step, an upstream address number recognition step of recognizing the own address number supplied to each terminal as an upstream address number by sending its own address number to the host computer and next to each of the plurality of terminals, and Create an address file with the upstream address number added to its own address number on each terminal, An address file creation step of sending an address file to the host computer, and in the host computer supplied with each address file, detecting the connection order of each terminal and the own address number of the host computer from the address file, According to this connection order, each terminal number set in the terminal number setting step is allocated to each own address number, the allocation result is stored in the memory, and the terminal number allocated to each own address number is A terminal number allocating method comprising a terminal number notifying step of notifying a terminal corresponding to its own address number, and a terminal number recognizing step of recognizing a terminal number from each terminal number notified in the terminal number notifying step. 2. A method of monitoring a terminal in a token passing communication method communication network in which one host computer and a plurality of terminals are connected in a ring type, wherein the terminal number of each terminal is arbitrary in the host computer. The terminal number setting step of setting the host address and the host computer and the own address number recognition step of recognizing the own address number, which is the own address number, from the address numbers preset in one-to-one correspondence with the plurality of terminals. An upstream address number recognition step of recognizing the own address number supplied by each terminal as an upstream address number by sending its own address number to each of the host computer and each of the plurality of terminals, and Create an address file in which the upstream address number is added to the own address number on the terminal, and Address file creation step of sending a response file to the host computer, and in the host computer to which each address file is supplied, the connection order of each terminal and its own address number of the host computer is detected, And a connection state monitoring step of detecting a different point by comparing a connection order stored in advance in a memory.