JPH03244088A - Transaction data gathering system of terminal device - Google Patents

Abstract

PURPOSE:To prevent data from being absent in case of trouble occurrence by controlling the number of data sent from the terminal machine to a center machine by the center machine and indicating the start position of data sent from the center to the terminal machine. CONSTITUTION:The center machine hold data on the numbers of sent data of terminal machines #1 and #2 on its internal memories 1 and 2 and sends a request to sent to the terminal machine #1 together with a value B on the memory 1. When receiving this request to send, the terminal machine #1 sends next data to the center machine by the number B of sent data and the center machine outputs the received data to a concentrated data transaction file and update the value B on the memory 1 on condition that the data are outputted normally. Therefore, the value B on the memory 1 is not updated unless the data are outputted normally to the concentrated data transaction file, so when a request to send is sent out again, data can be received from the same place as before. Consequently, transaction data from the terminal machines can be prevented from being absent owing to trouble on the center machine.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention is a system in which a center machine collects transactions that occur from time to time on terminals, in which the center machine manages the number of transactions sent by the terminals, and The present invention relates to a transaction data collection method for a terminal device that instructs the start position of data to be transmitted to a terminal device.

[Conventional technology]

Conventionally, when transmitting transaction data from terminals to a center machine, the terminal machine counts the number of transactions that have occurred and the number of transmissions, and when a transmission request comes from the center machine, the next data after the number of transmissions is sent. The method was to send data ranging from the number of incidents to the mask machine.

[Problem to be solved by the invention]

In the conventional terminal device transaction data collection method described above, if a timing problem occurs when the center device outputs the data received from the terminal device to a file, etc. in the center device, it issues a transmission request to the terminal device again. However, since the number of transmissions is updated on the terminal, there was a problem that data when a problem occurred would be lost.

[Means to solve the problem]

The terminal transaction data collection system of the present invention comprises a plurality of terminals and a center machine, and the center machine collects transaction data generated on the terminals from time to time. In this method, the center machine manages the number of data transmitted from the terminal to the center, and the center instructs the terminal to start the data to be transmitted.

〔Example〕

Next, the present invention will be explained with reference to the drawings.

FIG. 1 is a block diagram of an embodiment of the present invention.

Terminal #1. #2 is the number of occurrences (#) on memory 3 and 4 in each terminal every time transaction data occurs.
...A, #2...C) are updated. The center machine stores terminal #1 on internal memory 1 and 2. The number of transmissions for each of #2 and #1...B.

#2...Holds the data of D). When the center machine sends a transmission request to terminal #1, it adds the value of B in memory 1 and sends it. When terminal #1 receives this transmission request, it transmits data from the next data of B to A to the center device based on the number of transmissions B among them.

The center machine outputs the received 1-Run Zaktion data to the reception data transaction file in the center machine.

The value of B in memory 1 is updated when the output is completed normally.

Therefore, as long as the received data cannot be output to the transaction file normally, the value of B in memory 1 cannot be updated, so when sending a transmission request again, the data can be received from the same location as before, and the terminal It is possible to prevent transaction data from being lost due to trouble on the center machine.

〔Effect of the invention〕

As explained above, the present invention allows the center machine to manage the number of transmissions from the terminal, so that even if a timing problem occurs when the center machine receives transaction data from the terminal and outputs it to a file, Since the same transmission request can be issued, data loss can be prevented.

[Brief explanation of drawings]

FIG. 1 is a block diagram of an embodiment of the present invention. 1...Number of transmissions from terminal #1 on the memory of the center machine, 2...Terminal #2 on the memory of the center machine
3...Number of transaction data occurrences on the memory of terminal #1, 4...Number of transaction data occurrences on the memory of terminal #2.

Claims (1)

[Claims] In a transaction data collection method for a terminal device comprising a plurality of terminal devices and a center device, and in which the center device collects transaction data generated from time to time on the terminal device from time to time, the transaction data is transmitted from the terminal device to the center device. A transaction data collection system for terminals, characterized in that the center manages the number of transactions, and the center instructs the terminal to a starting position of data to be transmitted.