JP2001147817A - Data distribution controller - Google Patents

Abstract

PROBLEM TO BE SOLVED: To always distribute data from a host device to a task processing terminal without obstructing any task processing in a task processing terminal. SOLUTION: When any task processing requiring communication to a host device is started in a task processing terminal during the distribution of data from the host device to the task processing terminal, the transmission rate of data to be distributed from the host device to the task processing terminal is decreased. Or the transmission of data to be distributed from the host device to the task processing terminal is stopped.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a data distribution control device for controlling distribution of data such as a program from a host device to a running business processing terminal via a network.

[0002]

2. Description of the Related Art For example, a POS (Point Of Sales: point of sale information) system used in a mass retailer such as a supermarket has a POS installed at each sales floor in the store.
OS terminal and POs installed in store management offices, etc.
An S controller is connected via a network such as a LAN (Local Area Network). The POS terminal has a function of registering sales data of a product purchased by a shopper, calculating the price of the product purchased by the customer, and issuing a receipt. The POS controller is
The merchandise sales data registration function at the S terminal is centrally controlled, and the merchandise sales data registered at each POS terminal is collected and counted to manage the sales of the entire store.

In such a POS system, each P
When updating the programs installed in the OS terminals, it takes a great deal of time and effort if the maintenance staff manually updates the programs one by one in the POS terminal. Therefore, conventionally, PO
The program data of the new version of the program to be updated and its update date and time data are registered in advance in the S controller, and, for example, at a predetermined time before the update date and time, the program data and the update date and time data are simultaneously transmitted to each POS terminal via a network. When the POS terminal receives the program data and the update date and time data via a network, the POS terminal temporarily stores the program data and the update date and time in a save file. When the update date and time arrives, the update target registered in the program file is updated. A function of automatically updating the program of each POS terminal by providing a function of updating the program with the program data stored in the storage file is already known.

Recently, a POS terminal in which an OS (Operating System) of a personal computer is implemented as basic software has been developed and put into practical use.
The size of a program mounted on a POS terminal has increased several times as compared with the related art. Therefore, it takes a long time to distribute the program data. On the other hand, the POS controller is equipped with a database function to store and manage information such as stock and order of each product and information on shoppers who have become point members.
Necessary information can be inquired from the terminal via the network at any time. For this reason, when the program data is distributed from the POS controller to each POS terminal, the program data is transmitted during a time period when the inquiry from the POS terminal is relatively small, such as at night.

[0005]

However, data such as program data is transferred from the POS controller to each P
Determining the time zone for distribution to the OS terminal does not necessarily mean that an inquiry does not occur from each POS terminal during that time zone, and if an inquiry occurs, it becomes busy and hinders business processing at the POS terminal. There was something.

A problem such as this is that a large amount of data such as program data is distributed from a host device via a network to a business processing terminal which processes a business requiring communication with the host device connected to the network. Occurs in some data processing systems.

Accordingly, an object of the present invention is to provide a data distribution control device which can distribute data from a host device to a business processing terminal at any time without hindering business processing in the business processing terminal.

[0008]

SUMMARY OF THE INVENTION The present invention relates to a data distribution control device for controlling distribution of data divided into a plurality of blocks from a host device to a business processing terminal connected via a network. According to the first aspect of the present invention, when a business process requiring communication with the host device is started by the business processing terminal while data is being distributed from the host device to the business processing terminal, the data is distributed from the host device to the business processing terminal. This is to reduce the data transmission speed.

According to a second aspect of the present invention, when the business processing terminal receives data in block units from the host device during business processing that requires communication to the host device, the data transmission of the next block to the host device is performed. Means for giving a command to wait for a predetermined time, the host device, when receiving a standby command from the business processing terminal of the data distribution destination, means for waiting for a predetermined time of data transmission of the next block before transmitting, During a business process that requires communication with the device, the transmission speed of data distributed from the host device to the business processing terminal is reduced.

According to a third aspect of the present invention, when a business process that requires communication with the host device is started at the business processing terminal while data is being distributed from the host device to the business processing terminal,
The transmission of data distributed from the host device to the business processing terminal is stopped.

According to a fourth aspect of the present invention, when the business processing terminal receives data in block units from the host device during a business process that requires communication with the host device, the host device refuses to receive the data. Equipped with means for giving instructions,
The host device is provided with a means for stopping the subsequent data transmission upon receiving the reception rejection command from the business processing terminal of the data distribution destination, and during the business process requiring communication to the host device,
The transmission of data distributed from the host device to the business processing terminal is stopped.

According to a fifth aspect of the present invention, when a business process that requires communication with the host device is started at the business processing terminal while data is being distributed from the host device to the business processing terminal,
The transmission of data distributed from the host device to the business processing terminal is stopped, and thereafter, when the business process started by the business processing terminal ends, the data transmission is restarted.

According to a sixth aspect of the present invention, when the business processing terminal receives data in block units from the host device during a business process that requires communication with the host device, the host device refuses to receive the data. Means for giving a command, and means for giving a command to the host device to restart transmission of data when the business process is completed, and when the host device receives a reception rejection command from the business processing terminal of the data distribution destination, the subsequent data Means for stopping transmission and means for resuming data transmission from a subsequent block based on the data transmission resumption request command from the data processing destination business processing terminal, based on the command. During the business process that requires the, the transmission of data distributed from the host device to the business processing terminal is temporarily suspended, and resumed when the business process ends. Those were.

[0014]

Embodiments of the present invention will be described below with reference to the drawings. First, a first embodiment corresponding to the invention described in claims 1 and 2 of the present application will be described.
In the first embodiment, the present invention is applied to a wireless POS system.
This is the case when applied to the system.

FIG. 1 is a block diagram showing the overall configuration of the wireless POS system. In FIG. 1, a POS controller 1 functions as a host device of a wireless POS system, and connects a first wireless master station 3A and a second wireless master station 3B via a communication cable 2. POS terminals 4A-1,..., 4A-n and 4B-1,.
4B-n is a business processing terminal for processing a registration business for registering sales data of customer-purchased products, an inquiry business for inquiring the POS controller 1 for the number of products in stock and the total points of members, and the like. , 4A-n installed in the wireless zone of the wireless master station 3A, a first wireless slave station 5A capable of wireless transmission and reception with the first wireless master station 3A is attached. , POS terminals 4B-1, ..., installed in the wireless zone of the second wireless base station 3B.
A second wireless slave station 5B capable of wireless transmission and reception with the second wireless master station 3B is attached to 4B-n.

That is, the POS controller 1 and one of the POS terminals 4A-1,..., 4A-n can perform wireless data communication via the first wireless master station 3A and the first wireless slave station 5A. , And the other POS terminals 4B-1,..., 4B-n perform wireless data communication via the second wireless master station 3B and the second wireless slave station 5B. You can do it.

In particular, the POS controller 1 can selectively distribute program data to each of the POS terminals 4A-1 to 4A-n and 4B-1 to 4B-n. Also, each POS terminal 4A-1 to 4A-n, 4B-1
4B-n can automatically update an existing program based on the program data distributed from the POS controller 1.

FIG. 2 is a block diagram showing a main part configuration for realizing the program distribution function of the POS controller 1. The POS controller 1 comprises POS terminals 4A-1 to 4A-n and 4B-1 to 4B-1. A distribution program processing unit 11 for processing program data to be distributed to 4B-n, and a distribution program data file 1 for storing program data processed by the distribution program processing unit 11
2. a distribution management table 13 for storing distribution management data such as a distribution destination and a distribution date and time of the program data; a program distribution management unit 14 for managing distribution of program data based on the distribution management data; Terminals 4A-1 to 4A-n, 4B-1 to 4B-n
And a communication control unit 16 to which the communication cable 2 is connected.

FIG. 3 shows each POS terminal 4A-1 to 4A-.
FIG. 4 is a block diagram showing a main part configuration for realizing a program update function included in n, 4B-1 to 4B-n, and includes a wireless control unit 41 to which corresponding wireless slave stations 5A and 5B are connected; A program reception control unit 42 for controlling reception of program data via a unit 41; a storage file 43 for temporarily storing received program data; a program file 44 for storing various programs; and program data stored in the storage file 43 And a program update processing unit 45 for updating a program stored in the program file 44 based on the program.

Each of the POS terminals 4A-1 to 4A-
n, 4B-1 to 4B-n are an input unit 46 such as a keyboard, a scanner, a touch panel sensor, and a card reader, a memory unit 47, a printing unit 48 for performing receipt printing, and a display unit 49.
And a task control unit 50. Business control unit 50
Controls the execution of various business processes in accordance with the program stored in the program file 44. In the business processes, the wireless control unit uses data, which is input through the input unit 46 to identify products or members, as a key. PO via 41
When an inquiry is made to the S controller 1 and a response of the product data or the member data is received via the wireless control unit 41, there is an inquiry business process of printing on the printing unit 48 or displaying on the display unit 49.

FIG. 4 shows the POS terminals 4A-1 to 4A-4.
An, 4B-1 to 4B-n have a program reception control unit 4
FIG. 5 is a flowchart showing a control procedure of the program transmission control unit 15 included in the POS controller 1. Therefore, next, referring to these drawings, in the present embodiment, each PO
The operation of distributing program data to the S terminals 4A-1 to 4A-n and 4B-1 to 4B-n will be described.

First, when recognizing the program distribution time from the data in the distribution management table 13, the program distribution management unit 14 of the POS controller 1 issues a program distribution request to the program transmission control unit 15. In response to the distribution request, the program transmission control unit 15
Is activated, and transmits an activation request message of the program reception control unit 42 to the distribution destination POS terminal (hereinafter, for convenience of description, the code is 4) via the communication control unit 16 (FIG. 5).
-ST1).

This activation request message is transmitted to a wireless master station (hereinafter, for convenience of explanation, designated by reference numeral 5) under which a wireless slave station (hereinafter, referred to as 5 for convenience of explanation) mounted on the distribution destination POS terminal 4 is controlled. Is set to 3) and the distribution destination PO
It is received by the wireless slave station 5 of the S terminal 4. Thereby, the program reception control unit 42 of the distribution destination POS terminal 4 is activated.

Thus, the program reception control unit 4 started by the remote operation from the POS controller 1
2 transmits a program reception start request message to the POS controller 1 via the wireless control unit 41 (FIG. 4).
-ST1). The program reception start request message is wirelessly transmitted from the wireless slave station 5 mounted on the POS terminal 4 and received by the corresponding wireless master station 3, and then transmitted to the POS controller 1 via the communication cable 2 for communication control. Part 16
Is taken in.

The program transmission control section 15 is in a state of waiting for reception of a program reception start request message (ST2 in FIG. 5), and confirms that the program reception start request message has been taken into the communication control section 16. When confirmed, a program reception start reply message is transmitted to the requested distribution destination POS terminal 4 (FIG. 5-ST3). Thereafter, the program data for which the distribution instruction was issued is stored in the program data file 1
2 is checked (FIG. 5-ST).
4). If the program data is stored, the program data is divided into a plurality of blocks each having a predetermined number of bytes, and transmitted to the distribution destination POS terminal 4 in order from the first data block (FIG. 5-ST5).

On the other hand, the program reception control unit 42
After transmitting the program reception start request message, it waits for reception of the program reception start reply message (FIG. 4-ST2).
Then, when the wireless control unit 41 confirms that the program reception start reply message has been received, it waits for input of a data reception event given from the wireless control unit 41 and a business start event given from the business control unit 50 (FIG. 4-ST
3).

The wireless control unit 41 includes the POS controller 1
Each time a message is received, a data reception event is given to the program reception control unit 42. Program reception control unit 4
2 when a data reception event is given (FIG. 4-ST
4) It is determined whether the event is a data reception event at the time of receiving program data or a data reception event at the time of receiving a program reception end message (FIG. 4-ST).
5). If the received data is a data reception event at the time of receiving the program data, the received program data is output to the storage file 43 (FIG. 4-ST6). Thereafter, if a data reception confirmation message is transmitted to the POS controller 1 via the wireless control unit 41 (see FIG.
7) The process returns to waiting for input of a data reception event provided from the wireless control unit 41 and a business start event provided from the business control unit 50 (FIG. 4-ST3).

The business control unit 50 sets P
When a business process that requires communication with the OS controller 1 starts, a business start event is given to the program reception control unit 42. When the task processing is completed, a task end event is given to the program reception control unit 42.

When the business start event is given (ST8 in FIG. 4), the program reception control unit 42
1 and a data receiving event given from the
It waits for the input of a business end event given from 0 (ST9 in FIG. 4).

Here, when a business end event is given (ST10 in FIG. 4), input of a data reception event provided from the radio control unit 41 and a business start event provided from the business control unit 50 are awaited. (Fig. 4-ST
3). On the other hand, when a data reception event is given (ST11 in FIG. 4), it is determined whether the event is a data reception event at the time of receiving program data or a data reception event at the time of receiving a program reception end message (step ST11). (FIG. 4-ST12). Then, in the case of a data reception event at the time of program data reception, the received program data is output to the storage file 43 (FIG. 4-S
T13). After that, a data reception confirmation message designating a certain wait time is transmitted to the POS controller 1 via the wireless control unit 41 (FIG. 4-ST14). afterwards,
The program reception control unit 42 stops the operation for the wait time (ST15 in FIG. 4). When the wait time has elapsed, the process returns to waiting for input of a data reception event provided from the wireless control unit 41 and a business end event provided from the business control unit 50 (ST9 in FIG. 4).

Each time the program transmission control unit 15 transmits program data in units of one block, the program transmission control unit 15
It waits for the data reception confirmation message to be returned from the OS terminal 4 (FIG. 5-ST6). Then, when it is confirmed that the data reception confirmation message has been received via the communication control unit 15, it is determined whether or not the data reception confirmation message has a weight designation (FIG. 5-ST7). Then, when a data reception confirmation message without weight designation is received, the next data block is transmitted to the distribution destination POS terminal 4 (FIG. 5-ST5).

On the other hand, when a data reception confirmation message with a wait designation is received, the operation is stopped for the designated wait time (FIG. 5-ST8), and the next data block is transferred to the distribution destination POS. The message is transmitted to the terminal 4 (FIG. 5-ST5).

When the transmission of the program data for which the distribution command has been issued for each block is thus completed, a program reception end message is transmitted to the distribution destination POS terminal 4 (FIG. 5-ST9), and the current control is performed. finish.

The program reception control unit 42 of the distribution destination POS terminal 4 determines that the data reception event given from the wireless control unit 41 is a data reception event at the time of receiving a program reception end message (FIG. 4-ST5). , ST1
2) The program reception end reply message is transmitted to the POS controller 1 (ST16 in FIG. 4), and the current control ends.

As described above, in the first embodiment,
At the POS terminal 4 to which the program data is to be delivered, when a business process that requires communication with the POS controller 1 such as an inquiry business starts during the delivery of the program data, the program data in block units is transmitted from the POS controller 1 to the POS destination Each time it is transmitted to the terminal 4, a data reception confirmation message with a designated weight is returned from the distribution destination POS terminal 4 to the POS controller 1, and the program reception control unit 42 of the distribution destination POS terminal 4 and the program transmission of the POS controller 1 are performed. Control unit 1
5 stop the operation for a fixed wait time. As a result, the transmission speed of the program data is reduced, and the amount of communication traffic between the POS controller 1 and the POS terminal 4 is reduced. Processing can be digested without delay.

Next, a description will be given of a second embodiment according to the present invention. The second embodiment is a case where the present invention is applied to a wireless POS system. The overall configuration of the system, the POS controller 1, and each of the POS terminals 4A-1 to 4A-n,
Since the main configuration of the program distribution / reception functions 4B-1 to 4B-n is the same as that of the first embodiment, the description thereof will be omitted with reference to FIGS.

In the second embodiment, each of the POs
The control procedure of the program reception control unit 42 of the S terminals 4A-1 to 4A-n and 4B-1 to 4B-n and the control procedure of the program transmission control unit 15 of the POS controller 1 are the first embodiment. And different. FIG. 6 is a flowchart showing a control procedure of the program reception control unit 42 according to the second embodiment, and FIG.
5 is a flowchart showing a control procedure of No. 5; Then, referring to these drawings, in the present embodiment, the POS controller 1 sends the POS terminals 4A-1 to 4A-n and 4B-1 to 4B-n.
The operation when the program data is distributed to the server will be described.

First, when recognizing the program distribution time from the data in the distribution management table 13, the program distribution management unit 14 of the POS controller 1 issues a program distribution request to the program transmission control unit 15. In response to the distribution request, the program transmission control unit 15
Is activated, and transmits an activation request message of the program reception control unit 42 to the distribution destination POS terminal (hereinafter, for convenience of description, the code is 4) via the communication control unit 16 (FIG. 7).
-ST1).

The activation request message is transmitted to a wireless master station (hereinafter, for convenience of description, a code number 5 is assigned to a wireless slave station (hereinafter, referred to as 5 for convenience of description) mounted on the distribution destination POS terminal 4. Is set to 3) and the distribution destination PO
It is received by the wireless slave station 5 of the S terminal 4. Thereby, the program reception control unit 42 of the distribution destination POS terminal 4 is activated.

Thus, the program reception control unit 4 started by the remote operation from the POS controller 1
2 transmits a program reception start request message to the POS controller 1 via the wireless control unit 41 (FIG. 6).
-ST1). This program reception start request message is wirelessly transmitted from the wireless slave station 5 mounted on the POS terminal 4 and received by the corresponding wireless master station 3, and then transmitted to the POS controller 1 via the communication cable 2 for communication control. Part 16
Is taken in.

The program transmission control section 15 is in a state of waiting for reception of a program reception start request message (ST2 in FIG. 7), and confirms that the communication control section 16 has received the program reception start request message. When confirmed, a program reception start reply message is transmitted to the requested distribution destination POS terminal 4 (FIG. 7-ST3). Thereafter, the program data for which the distribution instruction was issued is stored in the program data file 1
2 is checked (see FIG. 7-ST).
4). If the program data is stored, the program data is divided into a plurality of blocks each having a predetermined number of bytes, and transmitted to the distribution destination POS terminal 4 in order from the first data block (FIG. 7-ST5).

On the other hand, the program reception control unit 42
After transmitting the program reception start request message, it waits for reception of the program reception start reply message (ST2 in FIG. 6).
Then, when the wireless control unit 41 confirms that the program reception start reply message has been received, it waits for input of a data reception event given from the wireless control unit 41 and a business start event given from the business control unit 50 (FIG. 6-ST
3).

The wireless control unit 41 includes the POS controller 1
Each time a message is received, a data reception event is given to the program reception control unit 42. Program reception control unit 4
2 when a data reception event is given (FIG. 6-ST
4) It is determined whether the event is a data reception event at the time of receiving program data or a data reception event at the time of receiving a program reception end message (FIG. 6-ST).
5). Then, if the event is a data reception event at the time of program data reception, the received program data is output to the storage file 43 (FIG. 6-ST6). Thereafter, if a data reception confirmation message is transmitted to the POS controller 1 via the wireless control unit 41 (FIG. 6-ST)
7) The process returns to waiting for input of a data reception event provided from the wireless control unit 41 and a business start event provided from the business control unit 50 (FIG. 4-ST3).

The business control unit 50 sets P
When a business process that requires communication with the OS controller 1 starts, a business start event is given to the program reception control unit 42. When the task processing is completed, a task end event is given to the program reception control unit 42.

When a business start event is given (ST8 in FIG. 6), the program reception control unit 42
1 and a data receiving event given from the
It waits for input of a business end event given from 0 (ST9 in FIG. 6).

Here, when a data reception event is given (ST11 in FIG. 6), whether the event is a data reception event when receiving program data or a data reception event when receiving a program reception end message Is determined (FIG. 6-ST12). If the event is a data reception event at the time of program data reception, the POS
A data reception confirmation message in which a flag indicating reception refusal is stored as a processing result is transmitted to the controller 1 via the wireless control unit 41 (FIG. 6-ST13). At this time, a flag indicating that the reception is being refused is stored in the internal memory. After that, the process returns to waiting for input of a data reception event provided from the wireless control unit 41 and a business end event provided from the business control unit 50 (ST9 in FIG. 6).

On the other hand, when the business end event is given (ST10 in FIG. 6), it is determined whether or not a flag indicating that reception is being refused is stored. If not stored, the process waits for input of a data reception event provided from the wireless control unit 41 and a business start event provided from the business control unit 50 (FIG. 6-ST3).

On the other hand, if a flag indicating that reception is being rejected is stored, the number of bytes for restarting is calculated from the number of bytes of the program data received so far, and this byte number data is calculated. The added program reception restart request message is transmitted to the POS controller 1 (ST15 in FIG. 6). Then, it waits for the reception of the program reception restart reply message (ST16 in FIG. 6). Then, when the program reception restart reply message is received, input of the data reception event provided from the wireless control unit 41 and the business start event provided from the business control unit 50 is again waited (ST3 in FIG. 6).

Each time the program transmission control unit 15 transmits program data in units of one block, the program transmission control unit 15
It waits for the data reception confirmation message to be returned from the OS terminal 4 (FIG. 7-ST6). Then, when it is confirmed that the data reception confirmation message has been received via the communication control unit 15, it is determined whether or not a flag indicating rejection of reception is set in the data reception confirmation message as a processing result ( (FIG. 7-ST7). If a data reception confirmation message in which the reception rejection flag is not set is received, the next data block is transmitted to the distribution destination POS terminal 4.
(ST5 in FIG. 7).

On the other hand, when a data reception confirmation message with the reception rejection flag set is received, the destination P
It waits for a program reception restart request message to be transmitted from the OS terminal 4 (FIG. 7-ST8). And
If the program resumption request message is received, the program reception resumption reply message is transmitted to the distribution destination POS terminal 4 (FIG. 7-ST9), and then the program block is transmitted from the data block of the number of bytes specified in the program reception resumption request message. The distribution of the program data is restarted (FIG. 5-ST5).

When the transmission of the program data for which the distribution command has been issued for each block is completed, a program reception end message is transmitted to the distribution destination POS terminal 4 (FIG. 5-ST10), and the current control is performed. finish.

The program reception control unit 42 of the distribution destination POS terminal 4 determines that the data reception event given from the wireless control unit 41 is a data reception event at the time of receiving the program reception end message (ST5 in FIG. 6). , ST1
2), a program reception end reply message is transmitted to the POS controller 1, and the current control is ended.

As described above, in the second embodiment,
At the POS terminal 4 to which the program data is to be delivered, if a business process requiring communication to the POS controller 1 such as an inquiry business is started during the distribution of the program data, the distribution of the program data is stopped until the business process is completed. I do. Thereby, the POS controller 1
Since the amount of communication traffic between the POS terminal 4 and the POS terminal 4 decreases, as in the first embodiment, the destination PO
Business processes that require communication to the POS controller 1 started by the S terminal 4 can be completed without delay.

In the second embodiment,
When the business process that requires communication to the POS controller 1 at the distribution destination POS terminal 4 ends, the distribution is restarted from the data block next to the already distributed data block. Therefore, there is no need to redo the distribution from the first data block, so that efficient distribution is possible.

Incidentally, in the second embodiment,
When the distribution destination POS terminal 4 requests the POS controller 1 to resume the program data reception, the position where the program data distribution is resumed is designated, but the POS controller 1 instructs the distribution destination POS terminal 4 to reject the reception. The reception position may be stored when the reception confirmation message is received, and the distribution of the program data may be restarted from the stored restart position in response to receiving the program reception restart request message.

The present invention is not limited to a data distribution control device for controlling the distribution of program data in a POS system, but also stores a plurality of blocks of data, especially a large amount of data, from a host device to a business processing terminal connected via a network. The present invention can be applied to a data distribution control device that controls distribution by dividing into data.

[0057]

As described in detail above, according to the first to sixth aspects of the present invention, data can be distributed from a host device to a business processing terminal at any time without hindering business processing in the business processing terminal. And a data distribution control device capable of performing such operations.

[Brief description of the drawings]

FIG. 1 is a block diagram showing an overall configuration of a wireless POS system according to first and second embodiments of the present invention.

FIG. 2 is a block diagram showing a main configuration for realizing a program distribution function of a POS controller of the wireless POS system.

FIG. 3 is a block diagram showing a main configuration for realizing a program update function of a POS terminal of the wireless POS system.

FIG. 4 is a flowchart showing a main part of a control procedure of a program reception control unit according to the first embodiment.

FIG. 5 is a flowchart showing a main part of a control procedure of a program transmission control unit according to the first embodiment.

FIG. 6 is a flowchart showing a main part of a control procedure of a program reception control unit according to the second embodiment.

FIG. 7 is a flowchart showing a main part of a control procedure of a program transmission control unit according to the second embodiment.

[Explanation of symbols]

REFERENCE SIGNS LIST 1 POS controller (host device) 4A-1 to 4A-n, 4B-1 to 4B-n POS terminal (business processing terminal) 11 distribution program processing unit 12 distribution program data file 13 distribution management table 14 Program distribution management unit 15 Program transmission control unit 16 Communication control unit 41 Wireless control unit 42 Program reception control unit 43 Save file 44 Program file 45 Program update processing unit 50 Business control unit

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 3E042 EA01 EA06 5B049 BB11 CC21 CC31 DD00 DD01 DD04 FF02 FF03 FF04 GG01 GG03 GG04 GG07 GG08 5B076 BB06 EA17 5B089 GA01 GA21 JA04 JA33 JB07 JB10 KA09 KC29 KK

Claims (6)

[Claims] 1. A data distribution control device that controls distribution of data divided into a plurality of blocks from a host device to a business processing terminal connected via a network, wherein the data is distributed from the host device to the business processing terminal. A data delivery control device for reducing the transmission speed of data distributed from the host device to the business processing terminal when the business processing required to communicate with the host device is started by the business processing terminal during the processing. . 2. A data distribution control device for controlling distribution of data divided into a plurality of blocks from a host device to a business processing terminal connected via a network, wherein the business processing terminal communicates with the host device. When receiving data in block units from the host device during required business processing, the host device includes means for giving an instruction to wait for a predetermined time period of data transmission of the next block to the host device. A data distribution control device comprising: a unit that, upon receiving a standby command from the business processing terminal, waits for data transmission of a next block for a predetermined time and then transmits the data. 3. A data distribution control device for controlling distribution of data divided into a plurality of blocks from a host device to a business processing terminal connected to a network, wherein the data is distributed from the host device to the business processing terminal. A data distribution control device, wherein, when a business process requiring communication with the host device is started by the business processing terminal, transmission of data distributed from the host device to the business processing terminal is stopped. 4. A data distribution control device for controlling distribution of data divided into a plurality of blocks from a host device to a business processing terminal connected via a network, wherein the business processing terminal communicates with the host device. When receiving data in block units from the host device during required business processing, the host device includes means for giving a command to reject data reception, the host device, from the business processing terminal of the data distribution destination A data distribution control device comprising: means for stopping a subsequent data transmission upon receiving a reception rejection command. 5. A data distribution control device for controlling distribution of data divided into a plurality of blocks from a host device to a business processing terminal connected to a network, wherein the data is distributed from the host device to the business processing terminal. When a business process that requires communication to the host device is started at the business processing terminal, the transmission of data distributed from the host device to the business processing terminal is stopped,
A data distribution control device, wherein data transmission is resumed when the business process started by the business processing terminal is completed. 6. A data distribution control device for controlling distribution of data divided into a plurality of blocks from a host device to a business processing terminal connected via a network, wherein the business processing terminal communicates with the host device. Means for giving a command to reject data reception to the host device when receiving data in block units from the host device during necessary business processing, and resuming data transmission to the host device when the business process is completed. Means for giving a request command, the host device, when receiving a reception rejection command from the data processing destination business processing terminal, means for stopping subsequent data transmission, and data from the data distribution destination business processing terminal Means for resuming data transmission from a subsequent block based on the command when the transmission resumption request command is received. Data distribution control device according to claim.