JPH0774755B2 - In-line system data transmission method - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a data transmission method for an inline system using an electronic toll scale as a terminal.

2. Description of the Related Art In a conventional inline system of this type, when an inspection or settlement command is received from the host computer, the data within the PLU file is not added, but within the range specified by the host computer. All data is being sent.

Problems to be Solved by the Invention As described above, since data within the range specified by the host computer is transmitted regardless of whether the PLU file data is added, data within the specified range is transmitted. If there is a lot of data, there is a problem that it will take time to finish transmitting the data.

Means for solving the problem In an in-line system in which a large number of electronic charge scales are connected in-line to the host computer, if the contents of the PLU file are added due to label printing, etc.
A flag is set in the file data, and when the inspection or settlement command is received from the host computer, only the data in which the flag is set is selected and transmitted, and the flag can be reset after the transmission is completed.

Operation Since only the data to which the PLU file has been added is selected and transmitted at the time of transmission to the host computer, the amount of transmission may be small, whereby the time required for transmission can be shortened.

Embodiment An embodiment of the present invention will be described with reference to the drawings. First, in the in-line system 1, a large number of electronic toll scales 4 are connected to a host computer 2 via a transmission line 3.

The electronic fee scale 2 has a CPU (central processing unit) 6 to which a scale unit 5 is connected, and a print buffer 7, a memory 8 and an I / O block 9 are connected to the CPU 6. The printing buffer 7 temporarily stores the printing contents immediately before printing on a label or the like, and the memory 8 functions as a program memory for storing programs and functions such as weight of each product number, number of issues, amount of money, and other PLU to which the item is set
It also has a function as (price / luck / up).

Next, a display device 10, a keyboard 11, and a thermal printer 12 are connected to the I / O block 9. An interface 13 connected inline with the host computer 2 is connected to the I / O block 9.

In such a configuration, the product number of the PLU file is designated, data is called, print data is set based on the weight measured by the weighing unit 5, and the label is issued from the Sahar printer 12. When the label is issued from the thermal printer 12, a plurality of PLU files are added. That is, the number of issues and the amount of money are added. At the same time as this addition, the PL
A flag is set which means that it has been added to each of the U files. In this way, the thermal printer 2 sequentially prints labels, but if an inspection or settlement command is sent from the host computer 2, it operates as follows.

That is, when the inspection or settlement command is transmitted from the host computer 2, first, one of the electronic fee scales 4 as a terminal device is specified. This electronic charge balance 4
For example, if a check command is received, the status on the terminal side is checked, and if the check command cannot be processed, a BUSY text is created and sent to the host computer 2, and the process returns to the command waiting state.

If the inspection command can be processed, READY text is created and sent. Next, the PLU file in which the addition flag is set is searched. At this time, if there is no PLU file in which the addition flag is set, a dummy text is created and transmitted, and the command waiting state is returned. If there is a PLU file with the addition flag set, data text is created and transmitted. After the text is transmitted, the addition flag in the transmitted PLU file is reset.

Next, the routine from the search of the addition flag of the PLU file to the reset of the addition flag is executed for the PLU with the addition flag.
The process is repeated until the file disappears, and when there is no one whose addition flag is set, the data transmission to the host computer 2 side is terminated.

As described above, the present invention, in the in-line system in which a large number of electronic fee scales are connected in-line to the host computer, when the contents of the PLU file are added by the label issuing, etc., the data of the PLU file is added. The flag is set, and when the check or settlement command is received from the host computer, only the data with the flag set is selected and transmitted, and the flag is reset after the transmission is completed. When an inspection or settlement command is issued, only the data with the PLU file added is selected and transmitted when transmitting to the host computer, so the transmission amount may be small,
As a result, the time required for transmission can be shortened.

[Brief description of drawings]

The drawings show one embodiment of the present invention. FIG. 1 is a block diagram of an electronic toll scale, FIG. 2 is a block diagram of an in-line system, and FIG. 3 is a flow chart. 1 ... In-line system, 2 ... Host computer, 4 ... Electronic charge balance

Claims (1)

[Claims] 1. In an in-line system in which a large number of electronic toll scales are connected in-line to a host computer, when the contents of the PLU file are added by issuing a label or the like, a flag is set in the data of the PLU file and the host is set. .A method of transmitting data in an in-line system, characterized in that only data having the flag set is selected and transmitted when an inspection or settlement command is received from the computer and the flag is reset after the transmission is completed. .