JP7356839B2 - Device control system and device control method - Google Patents

Description

The present invention relates to a device control system and a device control method.

Branches of financial institutions are trying to improve the efficiency of their counter operations systems and reduce costs. For example, in branch terminal systems, the requirements of the financial institution have traditionally been achieved using Rich/Fat client format terminal software built on dedicated terminals, but there is a trend toward thin client systems. be.

Conventional technology aimed at improving the efficiency of various systems in such financial institutions includes, for example, a plurality of cash processing machines having common cash processing functions, a terminal device that controls the operation of the cash processing machines, and a network. a server connected to the cash processing machine and the terminal device via a machine, the cash processing machine having a device interface that differs depending on the model, and the server having the function. an application providing unit that provides the terminal device with an application program that implements a common interface to implement the common interface; A cash processing system (see Patent Document 1) has been proposed, which is characterized by having a relay processing unit that converts the processing request into a processing request according to the device interface of each machine and delivers it to the cash processing machine to be controlled. .

Japanese Patent Application Publication No. 2018-128830

By the way, devices such as ACTs (teller cash machines) connected to branch terminals are not mass-produced and are expensive because they are for specific purposes. Therefore, if a device is introduced and operated for each branch terminal, large costs may be required.

On the other hand, when trying to create a thin client using a web browser as described above, for example, due to security restrictions of the web browser, it is not possible to access resources on the branch terminal from the web browser, and the above-mentioned devices cannot be directly controlled. There is a problem that I cannot do.

On the other hand, even if the device control function of the branch terminal is placed on a predetermined server and each device can be used from a web browser via the server, another problem arises. In other words, in the financial institution, the information handled by each device (e.g. information on the amount and denomination of cash stored in the ACT mentioned above) is managed on a per-branch terminal basis, and the branch terminal handles transactions. If a different device is used for each device, there is a problem that the host cannot perform detailed inspection of each device.
SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a technology that makes it possible to manage devices connected to branch terminals and to improve the efficiency of operations related to the devices.

The device control system of the present invention, which solves the above problems, uses identification information registered in advance in a host as a virtual terminal that plays the roles of inquiry transactions and transactions using a specific device at each branch terminal of a financial institution. , a storage device that holds information such as the connection status, usage status, and executable transaction types with the host; processing to configure a state in which transactions can be made with the host by performing a predetermined opening process between When a request is received, the information held in the storage device is referred to and identification information of the virtual terminal is extracted from entries where the connection status is online, the usage status is unused, and the executable transaction type is inquiry transaction. a process of transmitting the extracted identification information to a host in a message added to the request to obtain an inquiry result; a process of returning the inquiry result to the web browser of the branch terminal via the web server; When a request for a device usage transaction is received from the web server via the web browser of the branch terminal, the information held in the storage device is referred to and the connection status is online, the usage status is unused, and execution is possible. a process of extracting identification information of a virtual terminal from an entry whose transaction type is a device usage transaction; a process of transmitting a message in which the extracted identification information is attached to the request to a host to obtain a device usage transaction result; and a calculation device that executes processing for returning the device usage transaction result to the web browser of the branch terminal via the web server.

Further, in the device control method of the present invention, a GW server placed between a host of a financial institution and a WEB server in which a business processing function of a sales branch terminal is arranged can handle inquiries and transactions at each branch terminal of a financial institution. As a virtual terminal that plays various roles for transactions using a specific device and for transactions using a specific device, a memory that holds information such as identification information registered in advance on the host, connection status with the host, usage status, and types of transactions that can be executed. A process of performing a predetermined opening process with the host using the identification information held in the storage device upon startup of the device, and configuring a state in which transactions can be made with the host. , when receiving a request for an inquiry transaction via the web browser of the sales office terminal from a web server in which the business processing function of the sales office terminal is arranged, the connection status is checked by referring to the information held in the storage device. A process of extracting identification information of a virtual terminal from an entry that is online, the usage status is unused, and the executable transaction type is inquiry transaction, and the extracted identification information is sent to the host in a message attached to the request. A process of obtaining an inquiry result, a process of returning the inquiry result to the web browser of the branch terminal via the web server, and a process of receiving a request for a device usage transaction from the web server via the web browser of the branch terminal. If so, a process of referring to the information held in the storage device and extracting identification information of the virtual terminal from entries in which the connection status is online, the usage status is unused, and the executable transaction type is device usage transaction; A process of transmitting the extracted identification information and a message attached to the request to a host to obtain a device usage transaction result, and returning the device usage transaction result to the web browser of the branch terminal via the web server. processing.

According to the present invention, it is possible to manage devices connected to a branch terminal and to improve the efficiency of operations related to the devices.

FIG. 1 is a network configuration diagram including a device control system according to the present embodiment. It is a diagram showing an example of the hardware configuration of a GW server in this embodiment. It is a diagram showing an example of the hardware configuration of a WEB/AP server in this embodiment. FIG. 3 is a diagram showing an example of the data structure of a pseudo terminal table according to the present embodiment. FIG. 3 is a diagram illustrating an example data structure of a device-in-use table according to the present embodiment. FIG. 3 is a diagram illustrating an example data structure of a device status table according to the present embodiment. FIG. 2 is a diagram illustrating an example flow of a device control method according to the present embodiment.

---Network configuration---

Embodiments of the present invention will be described in detail below with reference to the drawings. FIG. 1 is a network configuration diagram including a device control system 10 of this embodiment. A device control system 10 shown in FIG. 1 is a computer system that enables management of devices connected to a counter terminal and efficiency of operations related to the devices.

Such a device control system 10 is configured to include a sales office terminal 20, a device 30, a device server 40, a WEB/AP server 50, a GW server 100, and a host 200.

Of these, the branch terminal 20 is a terminal operated by a teller at a branch of a financial institution. However, the branch terminal 20 of this embodiment differs from conventional branch terminals in that its main functions are transferred to the WEB/AP server 50, which is a thin client server, and is itself a thin client terminal. Therefore, the teller who operates this branch terminal 20 uses the functions of the WEB/AP server 50 via the WEB browser running on the branch terminal 20.

Further, the device 30 is a device that is connected to the branch terminal 20 and executes various specific tasks, such as a printer, a scanner, a blink scan, and a teller cash machine (hereinafter referred to as ACT). However, in this embodiment, the explanation will be given using ACT as an example.

Further, the device server 40 is a server device that allows the functions of the above-described devices to be used via a network, and for example, one device server 40 is arranged in association with each device. Of course, if the device itself has a server function, the device server 40 can be omitted.

Further, the WEB/AP server 50 is a thin client server that has business processing functions and device control functions that the conventional branch terminal 20 had, and provides these to the branch terminal 20 via the network. The WEB/AP server 50 also distributes a transaction request sent from the WEB browser of the branch terminal 20 to the GW server 100.

However, if the above-mentioned transaction request is a cash transaction request, the device linked to the web browser and its usage status will be checked, and the branch terminal will be granted permission to use the device, and the machine number of the cash transaction pseudo terminal will be checked. After a predetermined process such as identification, the transaction request is distributed to the GW server 100.

In addition, the GW server 100 receives a transaction request from the above-mentioned WEB/AP server 50, acquires necessary terminal identification information from the pseudo terminal table 125, generates a transaction message by adding it, and sends the transaction request. This is a server that sends data to the host 200.

Further, the host 200 is an accounting system of a financial institution that manages and operates the above-mentioned branch terminal 20, and the information (store number, machine number) of the terminal connected to the host 200 and the ID of the operator who operates the terminal are stored in advance. It is registered and managed by the host 200.
---Hardware configuration---
Further, among the information processing apparatuses constituting the device control system 10, for example, the hardware configuration of the GW server 100 is as shown in FIG.
That is, the GW server 100 includes a storage device 101, a memory 103, a calculation device 104, and a communication device 105.
Among these, the storage device 101 is configured with an appropriate nonvolatile storage element such as an SSD (Solid State Drive) or a hard disk drive.
Furthermore, the memory 103 is composed of a volatile storage element such as a RAM.

Further, the arithmetic device 104 is a CPU that reads the program 102 held in the storage device 101 into the memory 103 and executes it, performs overall control of the device itself, and performs various judgments, calculations, and control processing.

Further, the communication device 105 is a network interface card that connects to the network 1 and handles communication processing with other devices such as the WEB/AP server 50 and the host 200.

Note that, in addition to the program 102 for implementing functions necessary for the GW server 100 of this embodiment, at least a pseudo terminal table 125 is stored in the storage device 101. Details of this pseudo terminal table 125 will be described later.
Further, among the information processing apparatuses constituting the device control system 10, for example, the hardware configuration of the WEB/AP server 50 is as shown in FIG.
That is, the WEB/AP server 50 includes a storage device 51, a memory 53, a calculation device 54, and a communication device 55.
Among these, the storage device 51 is composed of an appropriate nonvolatile storage element such as an SSD (Solid State Drive) or a hard disk drive.
Further, the memory 53 is composed of a volatile storage element such as a RAM.

The arithmetic device 54 is a CPU that reads out and executes the program 52 held in the storage device 51 into the memory 53, performs overall control of the device itself, and performs various determinations, calculations, and control processes. This program 52 includes a device control program 56 that implements various business processing functions and device control functions that conventional branch terminals have, in addition to implementing general functions provided as a server device.

Further, the communication device 55 is a network interface card that connects to the network 1 and handles communication processing with other devices such as the GW server 100 and the device server 40.

Note that the storage device 51 stores at least a used device table 57 and a device status table 58 in addition to a program 52 for implementing functions necessary for the WEB/AP server 50 of this embodiment. Details of these tables will be described later.
--- Data structure example ---
Next, tables used by the GW server 100 and the WEB/AP server 50 of this embodiment will be explained.

FIG. 4 shows an example of the pseudo terminal table 125 in this embodiment. This pseudo terminal table 125 is a table that manages identification information sent to the host 200 when a transaction is made at the branch terminal 20 and the usage status of table entries.

The data structure includes identification information of the virtual branch terminal connected to the host 200, such as the branch number and machine number, the connection status with the host 200, usage status, user ID, password, and the pseudo terminal. It is a collection of records consisting of data such as the types of transactions that can be executed.

The host 200 is designed to be connected to a conventional branch terminal, and requires opening processing using a branch number and machine number and logon processing using a user ID prior to a transaction.

In the device control method of this embodiment, the branch terminal is a thin client terminal, and there is no entity equivalent to a conventional branch terminal. For this reason, when the GW server 100 is started, the store number, machine number, and user ID information defined in the pseudo terminal table 125 are used to electronically perform opening processing and logon processing, and the identification information on the pseudo terminal table 125 is used to The host 200 can now perform transactions with the host 200.

Further, FIG. 5 shows an example of the used device table 55 in this embodiment. This device-in-use table 57 is a table that defines information on the ACTs 30 as devices that can be used by each branch terminal 20.

The data structure is a collection of records consisting of data such as the ID of the ACT 30, which is a device connected to the branch terminal 20, using the IP address of the web browser of each branch terminal 20 as a key.

Further, FIG. 6 shows an example of the device status table 56 in this embodiment. This device status table 58 is a table that stores information regarding the status of each device connected to the above-mentioned branch terminal 20.

Its data structure is a collection of records consisting of data such as the store number of the branch to which the device belongs, IP address, device type, usage status, and connection pseudo terminal number, with the device ID that uniquely identifies the device as the key. It is.
---Flow example ---

Hereinafter, the actual procedure of the device control method in this embodiment will be explained based on the drawings. Various operations corresponding to the device control method described below are realized by programs read into respective memories and executed by each device constituting the device control system 10. This program is composed of codes for performing various operations described below.

FIG. 7 is a diagram illustrating a flow example of the device control method in this embodiment. First, assume a situation where a teller starts up a WEB browser on the branch terminal 20 at a branch of a certain financial institution and accesses the WEB/AP server 50 via this WEB browser.
As already mentioned, the WEB/AP server 50 holds programs corresponding to various business processing functions provided in conventional branch terminals, and implements the functions.

Therefore, the branch terminal 20 in this embodiment can be said to be a thin client terminal that utilizes the business processing function of the WEB/AP server 50 via the WEB browser. On the other hand, the WEB/AP server 50 is a thin client server that provides business processing functions to the branch terminal 20, which is a thin client terminal.

Here, the branch terminal 20 transmits a business process received from the teller via the WEB browser, that is, a request regarding a predetermined financial transaction (hereinafter referred to as a transaction request), to the WEB/AP server 50 via the network 1.

The WEB/AP server 50 receives the above-mentioned transaction request (s10), and if this transaction request is a request for an inquiry transaction (s11: inquiry), the IP address used by the WEB browser at the branch terminal 20 and Information on the port number is attached to the above inquiry transaction request and transmitted to the GW server 100 (s12).

On the other hand, the GW server 100 receives an inquiry transaction request via the WEB browser of the branch terminal 20 from the above-mentioned WEB/AP server 50 (s13). The transaction request includes information such as the store number, item, and account number of the customer account to be inquired.

In addition, in response to the fact that the transaction request received above is a request for an inquiry transaction (s14: inquiry), the GW server 100 adds the “connection status”, “usage status”, and “type” fields of the pseudo terminal table 125. , and extracts identification information for inquiry transactions from online and unused inquiry entries (s15). Further, the value in the "usage status" column of the corresponding entry is updated to indicate that it is in use (s16).

Next, the GW server 100 adds the identification information extracted in s15 to the transaction request for the above-mentioned inquiry transaction, generates a message, sends the message to the host 200, and obtains the inquiry result (s17) ). In this case, the host 200 sends the normal inquiry message to the pseudo terminal table 125.
Recognize that the message was received from the terminal with the store number and machine number extracted from the corresponding entry, refer to the information in the account management database using the store number, account, and account number contained in the inquiry message as keys, and return the results. becomes.

Additionally, the GW server 100 updates the value in the “usage status” column of the corresponding entry in the pseudo terminal table 125 from in use to unused (s18), and distributes the inquiry result obtained from the host 200 to the WEB/AP server 50. (s19).
On the other hand, the WEB/AP server 50 receives the above-mentioned inquiry result from the GW server 100, and displays it on the WEB browser of the above-mentioned branch terminal 20 (s20).

On the other hand, in s10 described above, the WEB/AP server 50 receives the transaction request described above, and if this transaction request is a request for a cash transaction (s11: cash transaction), the transaction request includes, for example, Using the IP address used by the web browser in the branch terminal 20 as a key, the used device table 57 is referred to, and an ACT 30 that can be used in the branch terminal 20 on which the web browser operates is specified (s21).

Further, the WEB/AP server 50 sets the occupancy state of the ACT 30 by the above-mentioned branch terminal 20 in the device state table 58 regarding the ACT 30 specified above (s22). This setting corresponds to the process of setting the value in the "usage status" column of the record of the corresponding ACT 30 in the device status table 58 to "in use."

Further, the WEB/AP server 50 specifies, in the device status table 58, information on the cash transaction pseudo terminal for device usage transactions to which the ACT 30 specified above is connected (s23). The information on the cash transaction pseudo terminal is, for example, the store number and machine number of the connected pseudo terminal, that is, the store number and machine number assigned in advance to the branch terminal serving as the cash transaction pseudo terminal.

Further, based on the function implemented by the device control program 56, the WEB/AP server 50 transmits to the GW server 100 a request for a device usage transaction with the store number and machine number of the cash transaction pseudo terminal as the destination (s24 ).

On the other hand, the GW server 100 receives a request for cash transaction via the WEB browser of the branch terminal 20 from the above-mentioned WEB/AP server 50 (s13). The transaction request includes information such as the store number, item, account number, and transaction amount of the customer account to be traded.

The GW server 100 also refers to the pseudo terminal table 125 based on the store number and machine number of the connected pseudo terminal included in the transaction request received above, and determines the values in the "connection status" and "usage status" columns. If it is online and unused, identification information for cash transactions is extracted (s25). Further, the value in the "usage status" column of the corresponding entry is updated to "in use" (s26).

Next, the GW server 100 adds the identification information extracted in s25 to the above-mentioned cash transaction request to generate a message, sends the message to the host 200, and obtains the processing result (s27) ).

In this case, the host 200 recognizes that it has received a message for a normal cash transaction from the branch terminal 200, and refers to the information in the account management database using the store number, item, and account number contained in the message as keys. , notifies the GW server 100 of an instruction to process a cash transaction with the above-mentioned transaction amount regarding the account.

The GW server 100 issues a processing instruction corresponding to the above-described device usage transaction, that is, ACT3.
0 is distributed to the WEB/AP server 50 (s28).

On the other hand, the WEB/AP server 50 receives from the host 200 via the GW server 100 and distributes a processing instruction corresponding to the above-described device usage transaction, that is, an instruction for a cash transaction in ACT 30, to the device server 40 of the ACT 30. (s29). In this case, the device server 40 receives the above-mentioned cash transaction instruction, causes the ACT 30 to execute the process of depositing or withdrawing a predetermined transaction amount included in the instruction, and returns the result to the WEB/AP server 50. becomes.

The WEB/AP server 50 returns the processing results obtained from the device server 40 to the GW server 100 (s30). Further, the GW server 100 returns the cash transaction processing result obtained from the host 200 to the host 200 (s30). Further, the GW server 100 returns the cash transaction processing result obtained from the host 200 to the host 200 (s31). Furthermore, the GW server 100 updates the value in the "usage status" column of the corresponding entry in the pseudo terminal table 125 from "in use" to "unused" (s32). Then, the GW server 100 distributes the processing results to the WEB/AP server 50 (s33).
The host 200 acquires the result of the cash transaction in ACT 30 via (the identification information of) the above-mentioned cash transaction pseudo terminal, and updates the ledger etc. in response to this.

Since this pseudo terminal for cash transactions is handled as a branch terminal linked to only one ACT 30, it indirectly manages the results of cash transactions in the corresponding ACT 30.

Therefore, for example, when the closing time of the day arrives, the cumulative result of the cash transaction processing performed in the relevant ACT 30 on that day (the difference between the total deposits and total withdrawals) will be the cash transaction linked to the relevant ACT 30. All you have to do is refer to the results of cash transactions held regarding the pseudo terminal. Therefore, cash scrutiny can be executed by comparing the amount of cash actually held by the ACT 30 with the above-mentioned cumulative result.

On the other hand, the WEB/AP server 50 receives the above cash transaction processing result from the GW server 100, and displays it on the WEB browser of the above-mentioned branch terminal 20 (s34). The WEB/AP server 50 also updates the value of the "usage status" column in the record of the corresponding ACT 30 in the device status table 58 to "unused" (s35), and ends the process.

Although the best mode for carrying out the present invention has been specifically described above, the present invention is not limited thereto and can be modified in various ways without departing from the gist thereof.

According to this embodiment, only when the business software on the branch terminal is required, a session between the pseudo device processing and the device server is constructed and processed, which was previously necessary for the number of branch terminals. The number of devices can be reduced. In addition, in the host, for example, cash information linked to each branch terminal (using the identification information of the branch terminal for device transactions as a key) can be connected to the branch terminal and managed as cash information in the ACT used. This makes it possible to efficiently conduct cash checks for each ACT.
In turn, it becomes possible to manage devices connected to branch terminals and improve the efficiency of operations related to the devices.

The description of this specification clarifies at least the following. That is, in the device control system of the present embodiment, a storage device that holds a program corresponding to the business processing function, information on devices that can be used by each of the branch terminals, and a storage device that holds information on devices that can be used by each of the branch terminals, and When a request for a device usage transaction is received, refer to the device information to identify a device that can be used by the branch terminal, and set the occupancy state of the device by the branch terminal in the device information. Processing, identify the branch terminal in the role of device usage transactions to which the identified device is connected, based on the device information, and connect the sales branch terminal for device usage transactions based on the business processing function. and a server function for the identified device that sends a request for a device usage transaction to the GW server, and a processing instruction corresponding to the device usage transaction received from the host via the GW server. The web server may further include a computing device that executes a process of distributing data to a device server.

According to this, the GW server of this embodiment cooperates with the WEB server, and it becomes possible to efficiently control devices such as ACT by the branch terminal. In addition, the host can manage information associated with the use of devices associated with each branch terminal (eg, information on cash processing in ACT) with respect to the corresponding (pseudo) branch terminal for transactions using the device.

Further, in the device control method of the present embodiment, the WEB server includes a storage device that holds a program corresponding to the business processing function and information on devices that can be used by each of the branch terminals, When a request for the device usage transaction is received via the terminal's web browser, the sales office terminal identifies a device that can be used by referring to the device information, and uses the device information to identify the device that can be used by the sales office terminal. A process of setting the occupancy status of a device, identifying a branch terminal in the role of device usage transaction to which the identified device is connected based on the device information, and determining the device based on the business processing function. A process of transmitting a request for a device usage transaction to the GW server as a sales office terminal for a usage transaction, and a processing instruction corresponding to the device usage transaction received from the host via the GW server, to the identified device. A process of distributing the information to a device server having a server function for the information may be further executed.

1 Network 10 Device control system 20 Branch terminal 30 ACT (device)
40 Device server 50 WEB/AP server 51 Storage device 52 Program 53 Memory 54 Arithmetic device 55 Communication device 56 Device control program 57 Device used table 58 Device status table 100 GW server 101 Storage device 102 Program 103 Memory 104 Arithmetic device 105 Communication device 125 Pseudo terminal table 200 host

Claims (4)

As a virtual terminal that plays the role of inquiry transactions and transactions using specific devices at each branch terminal of a financial institution, identification information registered in advance on the host, connection status with the host, usage status, and execution a storage device that holds information on each possible transaction type ;
A process of performing a predetermined opening process with the host using the identification information held in the storage device upon activation of the branch terminal, and configuring a state in which transactions can be made with the host; When a request for an inquiry transaction via the web browser of the branch terminal is received from the web server where the business processing function of A process of extracting identification information of a virtual terminal from an entry whose unused and executable transaction type is an inquiry transaction, and transmitting a message in which the extracted identification information is attached to the request to the host to obtain an inquiry result. processing, a process of returning the inquiry result to the web browser of the branch terminal via the web server, and when a request for a device usage transaction via the web browser of the branch terminal is received from the web server, the storage A process of referring to the information held in the device and extracting identification information of a virtual terminal from an entry in which the connection status is online, the usage status is unused, and the executable transaction type is device usage transaction, the extracted identification information , a process of transmitting the message attached to the request to the host to obtain the device usage transaction result, and a process of returning the device usage transaction result to the web browser of the branch terminal via the web server. a computing device;
A device control system comprising: a GW server. a storage device that holds a program corresponding to the business processing function and information on devices that can be used by each of the branch terminals;
When a request for the device usage transaction is received via the web browser of the sales office terminal, the sales office terminal refers to the device information to identify a device that can be used by the sales office terminal, and in the information of the device, the sales office A process of setting the occupancy state of the device by a terminal, identifying the virtual terminal for device usage transaction to which the identified device is connected based on the device information, and setting the device to the device based on the business processing function. A process of transmitting a request for a device usage transaction to the GW server as a sales office terminal for a usage transaction, and a processing instruction corresponding to the device usage transaction received from the host via the GW server, to the identified device. a computing device that executes a process of distributing data to a device server having a server function for
The device control system according to claim 1, further comprising a WEB server comprising: The GW server is placed between the financial institution's host and the web server where the business processing function of the branch terminal is placed.
As a virtual terminal that plays the role of inquiry transactions and transactions using specific devices at each branch terminal of a financial institution, identification information registered in advance on the host, connection status with the host, usage status, and execution Equipped with a storage device that holds information on each possible transaction type ,
A process of performing a predetermined opening process with the host using the identification information held in the storage device upon activation of the branch terminal, and configuring a state in which transactions can be made with the host; When a request for an inquiry transaction via the web browser of the branch terminal is received from the web server where the business processing function of A process of extracting identification information of a virtual terminal from an entry whose unused and executable transaction type is an inquiry transaction, and transmitting a message in which the extracted identification information is attached to the request to the host to obtain an inquiry result. processing, a process of returning the inquiry result to the web browser of the branch terminal via the web server, and when a request for a device usage transaction via the web browser of the branch terminal is received from the web server, the storage A process of referring to the information held in the device and extracting identification information of a virtual terminal from an entry in which the connection status is online, the usage status is unused, and the executable transaction type is device usage transaction, the extracted identification information a process of transmitting a message attached to the request to a host to obtain a device usage transaction result, and a process of returning the device usage transaction result to the web browser of the branch terminal via the web server,
A device control method characterized by performing the following. The WEB server is
comprising a program corresponding to the business processing function and a storage device that holds information on devices that can be used by each of the branch terminals;
When a request for the device usage transaction is received via the web browser of the sales office terminal, the sales office terminal refers to the device information to identify a device that can be used by the sales office terminal, and in the information of the device, the sales office A process of setting the occupancy state of the device by a terminal, identifying the virtual terminal for device usage transaction to which the identified device is connected based on the device information, and setting the device to the device based on the business processing function. A process of transmitting a request for a device usage transaction to the GW server as a sales office terminal for a usage transaction, and a processing instruction corresponding to the device usage transaction received from the host via the GW server, to the identified device. processing to distribute to a device server having a server function for
4. The device control method according to claim 3, further comprising performing the following steps.

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