JP3241137B2 - Terminal address setting method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a terminal address setting method for an apparatus for controlling a plurality of terminals by a master unit.

[0002]

2. Description of the Related Art Conventionally, as shown in FIG. 4, an apparatus for controlling slave stations 21, 22, 23... Consisting of a plurality of terminals by a master unit 1 constituted by a master station consisting of a host computer, for example, for hospitals Prepaid card system, LAN
(Local Area Network) or the like, each terminal 21, 22, 23,... Refers to a correspondence table as shown in FIG. The physical numbers of the addresses unique to the terminals 21, 22, 23,.
Address setting units 31, 32 such as DIP switches
.. Are sequentially set to 1, 2, 3,... Corresponding to the logical numbers 301, 302, 303, 305, 306,. Communicate with the base unit 1 and a plurality of terminals 21, 22, 23,... Using physical numbers 1, 2, 3, 4, 5,. 21, 22, 23
.. Is the logical number 301 of its own address from the base unit 1,
. Responds to data with physical numbers 1, 2, 3, 4, 5,... Corresponding to 302, 303, 305, 306.

In addition, when increasing or decreasing the number of terminals, the existing terminals 21 and 21 are referred to while referring to a correspondence table corresponding to the increase or decrease.
The physical numbers 1, 2, 3,... Of the addresses 2, 23.
To address setting units 31, 32, such as dip switches,
33, and the physical number of the address of the additional terminal is set by an address setting unit such as a dip switch, and corresponds to the logical number of the address of each terminal 21, 22, 23,. Data communication is performed between the base unit 1 and each of the terminals 21, 22, 23,.

For example, when the number of terminals 23 is reduced, FIG.
While referring to the correspondence table as shown in FIG.
The physical numbers 4, 5,... Of the terminals 24, 25,.
・ Leave as is, and each terminal 21, 22, 24, 25
..Logical numbers 301, 302, 305, and 3 of addresses
Data communication is performed between the base unit 1 and each of the terminals 21, 22, 23,... With physical numbers 1, 2, 3, 4,.

[0005]

In the above apparatus, when setting a physical number of an address unique to each terminal, the physical number of the address unique to each terminal is referred to a dip switch while referring to a correspondence table. Since the setting is performed by the address setting unit, the user must refer to the correspondence table, which is troublesome, and the setting of the physical number of the terminal address is likely to be erroneous. In addition, confirming the setting of the physical number of the terminal address is also troublesome, as is the setting of the physical number of the terminal address. When the number of terminals is increased or decreased, the physical number of the address of the existing terminal must be changed by an address setting unit such as a dip switch while referring to the correspondence table.

The present invention solves the above-mentioned drawbacks, and makes it possible to easily and accurately set the address of a terminal, and does not need to change the address of an existing terminal when the number of terminals is increased or decreased. An object of the present invention is to provide a terminal address setting method.

[0007]

In order to achieve the above object, according to the first aspect of the present invention , a bidirectional coaxial cable is connected to a master unit.
Control multiple terminals connected via the
The physical number of the address of the terminal from the base unit.
Data including the logical number and object of the terminal address
Transmitting data including a physical number to the terminal,
Corresponds to the logical number of its own address from the master unit
Terminal address of device responding to data including physical number
A setting method, wherein the logical number of the address of the terminal is
To the well-known number related to the terminal by the address setting unit
And the terminal sets the address of the terminal from the master.
Received data including the logical and physical numbers of
If the logical number of the address in the received data is
When the logical number of your own address matches,
The physical number of the address in the communication data
Set as a management number.

[0008]

FIG. 1 shows an example of an apparatus to which the present invention is applied.
This device is a hospital prepaid card system for controlling a slave station 51, 52, 53,... Consisting of a plurality of terminals through a bidirectional coaxial cable 42 by a master unit 41 constituted by a master station constituted by a host computer. The master unit 41 performs centralized management of a plurality of terminals 51, 52, 53,. The terminals 51, 52, 53,... Are respectively arranged corresponding to the beds in the hospital, and the loads of the television receiver, the washing machine and the like can be used by the prepaid card.

In this hospital prepaid card system, a logical number of an address unique to each terminal 51, 52, 53,..., A well-known number relating to each terminal 51, 52, 53,. So that each terminal 51,5
Bed numbers 301, 30 corresponding to 2, 53 ...
Are set by the DIP switches of the terminals 51, 52, 53... Or address setting units 61, 62, 63. .. Correspond to logical numbers 301, 302, 303,... Of the base unit 41 and a plurality of terminals 51, 52, 53,. .. Perform data communication with each other, that is, when each of the terminals 51, 52, 53,.
Logical numbers 301, 302, 30 of own addresses from
Physical numbers 1, 2, 3, 4, 5,... Corresponding to 3.
Respond to data marked with.

In addition, when the number of terminals is increased or decreased, the logical number of the address of the existing terminal is not changed and remains unchanged, and the logical number of the address unique to the terminal to be added is changed to the bed corresponding to the terminal. Is set by the address setting unit of the terminal, and data communication is performed between the master unit and the plurality of terminals using the physical number corresponding to the logical number of the address of each terminal.

FIG. 3 shows a processing flow of each of the terminals 51, 52, 53,. Each terminal 51, 52, 53,... Determines whether or not its own logical address (logical number of the address) has been set in step S1 as shown in FIG. If not, the address setting units 61, 62, 63,.
.. by setting the logical address by storing the logical address set in the memory in step S
Return to 1.

Each of the terminals 51, 52, 53,... Receives the data transmitted from the master unit 41 via the coaxial cable 42 in step S3 if its own logical address has been set. In step S4, it is determined whether the received data is TYPE1 data or TYPE2 data. Here, the data of TYPE 1 is data including a physical address (physical number of an address) and a command, and the data of TYPE 2 is data including a physical address and a logical address. The master unit 41 transmits data to the terminals 51, 52, 53,... In a predetermined order as TYPE1 data or TYPE2 data.

If the received data is TYPE 1 data, each of the terminals 51, 52, 53,... Determines in step S5 whether or not the physical number of its own address has been set. If the physical number has not been set, the process returns to step S1. Also, the terminal 51,
When the physical number of the own address has been set, it is determined in step S6 whether the set own physical address matches the physical address in the received data. If the own physical address does not match the physical address in the received data, step S
Return to 1. When the set physical addresses of the terminals 51, 52, 53,... Coincide with the physical addresses in the received data, the terminals 51, 52, 53,.
Processing such as a response to 1 is performed.

If the received data is TYPE2 data, the terminal 51, 52, 53... Proceeds from step S4 to step S8, where the logical addresses of the terminals 51, 52, 53,. It is determined whether the logical address of the received data does not match the logical address in the received data, and the process returns to step S3. When the logical addresses of the terminals 51, 52, 53,... Coincide with the logical addresses in the received data, the terminals 51, 52, 53,. Is set, and processing such as a response to the master unit 41 is performed in step S7.

FIG. 7 shows another example of the apparatus to which the present invention is applied. This device comprises slaves 81, 82, 83,... Comprising a plurality of terminals through a bidirectional coaxial cable 72 by a master 71 constituted by a master station constituted by a host computer.
・ It is a system that controls the system and is installed in hotels and the like.
The master unit 71 is installed at the front desk, and performs centralized management of a plurality of terminals 81, 82, 83,... Installed in each guest room. Each of the terminals 81, 82, 83,... Can use the television receiver in the guest room only by inserting a coin, inserting a prepaid card, or an instruction from the master unit 71.

In this system, each terminal 81, 82, 8
Each terminal 8 as a logical number of an address unique to 3.
., For example, the numbers 301, 302, 303... Of the guest rooms in which the terminals 81, 82, 83.
Address setting units 91, 92, 93, which are composed of 2, 83.
.. and set each of these terminals 81, 82, 83
..Logical numbers 301, 302, 303 of the addresses of
Communicate data between the master unit 71 and the plurality of terminals 81, 82, 83,... Using the physical numbers 1, 2, 3,. , 83... Respond to data with a physical number corresponding to the logical number of its own address from the base unit 71.

In addition, when the number of terminals is increased or decreased, the logical number of the address of the existing terminal is not changed and the terminal is set as the logical number of the address unique to the terminal to be added. The number of the guest room is set by the address setting unit of the terminal, and data communication is performed between the master unit and the plurality of terminals using physical numbers corresponding to the logical numbers of the addresses of the terminals. Each terminal 81, 82, 83
.. Are the same as those of the terminals 51, 52, 53,.
Processing such as a response to

It should be noted that the present invention is not limited to the above-described example, and is similarly applied to a device for controlling a plurality of terminals by a master device, for example, a LAN, a cable television system, a refrigerator centralized management system, and the like. be able to.

[0019]

As described above, according to the first aspect of the present invention, the multiple units connected to the master unit via the bidirectional coaxial cable are provided.
The number of terminals is controlled by the master unit, and the master unit
Data including a physical number of a terminal address;
Data including the logical and physical numbers of the
To the terminal, and the terminal transmits its own
To the data containing the physical number corresponding to the logical number of the address
A method for setting a terminal address of a responding device, comprising:
The logical number of the terminal address is preceded by the address setting section.
Set with a well-known number related to the terminal,
Logical number and physical address of the terminal from the base unit
When data containing a number is received, the
Of the logical number of the address of the user and the address of the set self
When the physical number matches, the address in the received data
Since the physical number is set as the physical number of its own address, the logical number of the address of the terminal can be set easily and accurately, and its confirmation can be performed at a glance. Further, when the number of terminals is increased or decreased, it is not necessary to change the setting of the logical number of the address of the existing terminal.

[Brief description of the drawings]

FIG. 1 is a block diagram showing an example of an apparatus to which the present invention is applied.

FIG. 2 is a diagram showing addresses of respective terminals in the device.

FIG. 3 is a flowchart showing a processing flow of each terminal of the apparatus.

FIG. 4 is a block diagram showing a conventional device.

FIG. 5 is a diagram showing addresses of respective terminals in the device.

FIG. 6 is a diagram showing a terminal address when the terminal is reduced in the device.

FIG. 7 is a block diagram showing another example of an apparatus to which the present invention is applied.

[Explanation of symbols]

41, 71 master units 51, 52, 53 ..., 81, 82, 83 ...
Terminals 61, 62, 63 ..., 91, 92, 93 ...
Address setting section

Claims (1)

(57) [Claims] 1. A connection to a master unit via a bidirectional coaxial cable.
The plurality of terminals are controlled by the master,
Data including the physical number of the address of the terminal from;
Data including the logical number and physical number of the terminal address
Data to the terminal, and the terminal
Contains the physical number corresponding to the logical number of its own address
The terminal address setting method of the device responding to the data
The logical number of the terminal address in the address setting section.
Is set with a known number related to the terminal,
The terminal is the logical number of the address of the terminal from the master.
And the data including the physical number
Logical number of address in data and set own address
Address in the received data when the logical number of the
The physical number of the dress is set as the physical number of its own address.
Terminal address setting method characterized by a constant.