JP2546662B2 - Electronic scales - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to an electronic balance having an improved configuration of input keys provided with various functions.

(Prior Art) Having an arithmetic control unit using a microcomputer or the like,
2. Description of the Related Art Electronic scales that perform processing such as weighing, displaying, and printing of labels are known.

FIG. 6 is a schematic block diagram showing an example of a conventionally known electronic scale. In the figure, 1 is a weight sensor using a load cell or the like, 2 is an A / D converter for converting an analog signal into a digital signal, 3 is an arithmetic control unit having a CPU, input / output port I / O, memory RAM, ROM, etc. Then, for example, a microcomputer is used. Reference numeral 4 is a numeric keypad, a key input section including function keys, 5 is a display section, and 6 is a printer.

Next, the operation of this electronic scale will be described. The electronic scale is set to the registration mode by the function key of the key input unit 4, and the product name code, calling number, effective period, unit price, etc. are stored in the RAM in advance for each product. Then, the electronic scale is set to the weighing mode, and the calling number of the corresponding product is called from the RAM to measure the product. The calculation control unit calculates a price from the unit price and weight data of the corresponding product, outputs a signal indicating the unit price, weight, and price on the display unit 5, and the printer 6 determines a predetermined date, price, product name, etc. on the label. Output the command signal to print the item.

(Problems to be Solved by the Invention) In such a conventional electronic balance, the program is provided with a minimum required number of function keys used when selecting a mode such as "registration" or "printing". Since I have created it, if I try to add a function key that specifies the "aggregate" mode or change a key to a function key that specifies the "aggregate" mode, the entire program must be modified. However, there is a problem that the processing becomes complicated.

Therefore, the present invention provides an electronic balance having an improved configuration of the function keys among the input keys for the purpose of solving the problems of the prior art.

(Means for Solving Problems) The electronic balance of the present invention is provided with a plurality of function keys in the key input section, an arithmetic control section in the main body, and the arithmetic control section is operated by pressing the function key. In an electronic balance that executes a pre-stored program to perform various kinds of calculation processing of charges, etc., a storage means for storing a different program for each of a plurality of function codes in advance, and a function code for setting the function code in each function key. The present invention is characterized in that it has setting means and means for storing the set function code in association with each function key so that the setting of each function key can be changed to any function.

(Operation) In the present invention, a plurality of function keys are arranged in a predetermined number of rows and columns, various function keys necessary for operating the electronic scale are given to each function key, and the function is controlled by the control unit. Since the function code is set and a separate program for each function code is registered in the memory in advance, an electronic scale equipped with the same hardware and software can be used as an electronic scale that performs different functions.

(Example) Hereinafter, an example of the present invention will be described with reference to the drawings.

FIG. 1 is a block diagram showing a schematic configuration of the present invention.
The same components as those in the conventional example shown in FIG. 6 are designated by the same reference numerals, and detailed description thereof will be omitted. In the present invention,
The configuration of the function keys of the key input unit 4 is different from that of the conventional example. This function key is composed of a plurality of keys, in the example of the figure, 25 keys, which are arranged in a plurality of rows vertically and horizontally. The function code corresponds to each function key as shown in FIG.
It is set in RAM and used as a tare weight cancellation key, preset key, person in charge key, etc.

FIG. 3 is a flowchart showing a procedure of processing for registering the function of each function key. Next, this flowchart will be described.

Program is started, numeric keys of a predetermined key in step P _1, for example, to turn on the power switch while on "9" key, the electronic scale at step P ₂ registration mode function key is set. Then, check that there was a next key-on operation in step P _3, was turned on in step P ₄ checks whether the numeric keypad. The judgment is YE
If it is S, the value of the function code turned on in step P ₅ (in the example of Fig. 2, for example, the value of "121" for tare)
Is displayed on the display unit. If the determination is NO, step
Was turned on at P ₆ checks whether the function key, at step P ₇ if the judgment is YES, in the example of number (second view of the on-functionality key, for example if the tare The displayed numerical value ("121" in the above example) is stored as a function code in the function code registration area corresponding to "2". Further, if the determination is NO, checks whether the clear key of which is turned on in step P _8, the determination returns to the processing in Step P ₃ if NO, the judgment in Step P ₉ If YES Clear the displayed function code value.

When the registration process of each function key is completed in this way, titles such as "tare weight cancellation" and "person in charge A" are displayed on the key top of each function key, as shown in FIG. The display may be directly written on the key top, or a piece of paper may be attached.

FIG. 5 is a flowchart showing the processing means when each function key is turned on. Next, this flowchart will be described.

Begins by identifying key-on in step P _11, followed by the turned on in step P ₁₂ is confirmed to be function key, the function code registers the function code corresponding to the key number of the function key in step P ₁₃ The process of reading from the area is executed. Next, the function code in step P ₁₄ to confirm that is not 0, will execute the respective programs as follows according to the number of function codes.

(1) Function code 100 (step P ₁₅₎ program for performing zero-point correction (step P ₁₆₎ (2) Function code 101 (step P ₁₇₎ numeric program to clear the display (step P ₁₈₎ (3) Function code 102 (Step P ₁₉ ) Totaling program (Step P ₂₀ ) (4) Function code 103 (Step P ₂₁ ) Program for registering product name, unit price, etc. (Step P ₂₂ ) (5) Function code 121 (Step P ₂₃ ) Tare Program (Step P ₂₄ ) (6) Function code 2000s (Step P ₂₅ ) Program to read the product name, unit price, etc. corresponding to the turned-on key from the product names, unit prices, etc. that have been registered in advance ( step P ₂₆₎ (7) function code 3000 series (step P ₂₇₎ on programs that aggregated by the person that corresponds to the key (step P ₂₆₎ Thus, in the present invention Only corresponding to the function code, so keep function separately prepare a program in advance, there is no need to be added the function key to change the whole of the program. Also, the layout of the function keys can be set freely,
It is possible to place the keys that are used most frequently in the positions where they can be operated most easily, and to register the same function for two or more keys. By setting and registering "0" in the example of FIG. 2), even if this key is accidentally turned on, it does not operate.

Although the gist of the present invention has been described above with reference to the specified embodiment, it is apparent that various changes and modifications can be made to the present invention based on what has already been described.

(Effects of the Invention) As described above, according to the present invention, a function code is set in advance for each of a plurality of function keys, and a program corresponding to the function code is prepared. There is no need to change the program, and the electronic scale having the same hardware and software can be used as an electronic scale that realizes different functions, and the range of use can be expanded. Further, the layout of the function keys can be freely set, and the operator's convenience can be improved.

[Brief description of drawings]

FIG. 1 is a block diagram showing a schematic configuration of the present invention, FIG. 2 is an explanatory diagram, FIG. 3 is a flowchart, FIG. 4 is an explanatory diagram, FIG. 5 is a flowchart, and FIG. 6 is a block diagram of a conventional example. is there. 1 ... weight sensor, 2 ... A / D converter, 3 ... arithmetic control unit, 4 ... key input unit, 5 ... display unit, 6 ... printer.

Claims (1)

(57) [Claims] 1. A key input unit comprising a plurality of function keys,
In an electronic balance that includes a calculation control unit in the main body and executes a program previously stored in the calculation control unit by pressing the function key to perform calculation processing of various charges, a different program for each function code And a function code setting means for setting the function code to each function key, and a means for storing the set function code in association with each function key. An electronic scale characterized in that the setting can be changed to any function.