JPH0660839B2 - Data setting method for electronic scales - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention is a data setting in an electronic scale that converts digital data according to a load into weight display data based on data in a non-volatile memory and displays it on a display. Regarding the method.

[Prior Art] Conventionally, in this type of electronic balance, when shipping to the United States, for example, conversion data for converting digital data according to load into weight display data in units of pounds is stored in a nonvolatile memory. The data is set by setting the balance mode to the setting mode and inputting the data from the keyboard. (See JP-A-57-77920).

[Problems to be Solved by the Invention] However, in such a conventional method, the conversion data for converting the digital data into the weight display data for each shipping country has to be set by inputting from the keyboard, and the data setting is troublesome. there were.

The present invention has been made to solve such a problem, and an object of the present invention is to provide a data setting method in an electronic scale which can easily set conversion data for converting digital data into weight display data. .

[Means and Actions for Solving Problems] The present invention stores conversion data for converting digital data output from a weight output unit into weight display data suitable for a weight unit used in a predetermined country. In an electronic balance that has a non-volatile memory and converts digital data into weight display data based on the conversion data of the non-volatile memory and displays it on the display, connect a connector to the bus line to the non-volatile memory, and By the selection operation performed by the external data processing device that stores the conversion data preset for each country for each country, the processing of this external data processing device directly accesses the nonvolatile memory using the bus line through the connector. Then, the conversion data corresponding to the selected country is set in the nonvolatile memory.

Embodiments Embodiments of the present invention will be described below with reference to the drawings.

In FIG. 1, reference numeral 1 denotes a load cell that outputs an analog voltage signal according to a load, and the voltage signal from the load cell 1 is converted into digital data by an A / D converter 2.
Then, this digital data is taken in by the CPU (central processing unit) 3. The load cell 1 and the A / D converter 2 constitute a weight output section.

The CPU 3 is a ROM (Read Only Memory) 4
The control unit main body controls each unit based on the program data stored in the RAM. The digital data taken from the A / D converter 2 is stored in the RAM (random access memory) 5, The digital data is R
Using other memory of AM5, the digital data set in the non-volatile memory 6 is converted into the weight display data. Based on the conversion data, the desired weight display data is converted, and the weight display data is displayed by the display controller 7. The weight is displayed on the weight display section of the display 8 via the display. When the unit price data is input from the keyboard 9 via the keyboard controller 10, the CPU 3 displays the unit price data on the unit display section of the display 8 via the display controller 7, and displays the unit price data and weight. The price is calculated from the data and the price data is displayed on the price display section of the display 8 via the display controller 7. The decimal point position data in currency units necessary for displaying the unit price on the unit price display unit and displaying the price on the price display unit are also read from the non-volatile memory 6 for display processing.

A connector 12 is connected to the bus line 11 connected to the CPU 3. The connection of this connector 12 is the second
As shown in the figure, it is performed directly to the non-volatile memory 6 and to the CPU 3 through the diode 13 in the illustrated polarity.

Reference numeral 14 denotes an external input device as an external data processing device. This device 14 is a CPU 15 which constitutes the main body of the control unit, and this C
PU15 program data for controlling each part and conversion data for converting the digital data set according to the specifications of each country such as the United States, Canada, Belgium and Japan into weight display data, decimal point in displaying unit price and price ROM 1 in which data designating a position and other data designating a display unit to be used in the display 8 are stored
6. A keyboard controller 18 for causing the CPU 15 to receive a key signal from the keyboard 17 and the CPU 15
And a connector 19 that is directly connected to the electronic balance and is connected to the connector 12 of the electronic scale. The keyboard 1
Keys for specifying the United States, Canada, Belgium, and Japan are provided in 7.

In the present embodiment having such a configuration, when the connector 19 of the external input device 14 is coupled to the connector 12 of the electronic scale, the nonvolatile memory 6 of the electronic scale is connected to the CUP 15 of the external input device 14. Become. That is, CUP1
5, the nonvolatile memory 6 can be directly accessed.

In this state, if a key for designating a country is operated on the keyboard 17, the CPU 15 responds to the key input.
Reads from the ROM 16 the conversion data for converting the digital data in the corresponding country into the weight display data, the data designating the decimal point position in the display of the unit price and the price, the data designating the display section to be used in the display unit 8, etc. And stores it in the non-volatile memory 6. Ie CPU
15 performs the key processing shown in FIG.

In this way, various kinds of conversion data can be easily set in the non-volatile memory 6 of the electronic scale according to the use in each country.

Then, by disconnecting the connector 12 from the connector 19 and applying a load to the load cell 1, the CPU 3 reads the conversion data for converting the digital data into the weight display data from the non-volatile memory 6, and based on the data, the A / D converter. The digital data from 2 is converted into weight display data and displayed on the weight display section of the display eraser 8. Therefore, if used in the United States, the unit of weight indication data is the unit of pounds, and if used in Japan, it is in units of g or Kg.

When the unit price per unit weight is input from the keyboard 9 in this state, the CPU 3 displays the unit price on the unit price display section of the display unit 8 and calculates the price from the unit price and weight and displays it on the price display section of the display unit 8. Let Since the unit price and the price are displayed in dollars in the US and yen in Japan, for example, in the case of dollars, it is necessary to display cents with a decimal point or less. The data designating the decimal point position in the unit price or price display is read and processed. Further, the unit price may not be displayed depending on the use, and since such data is also set in the non-volatile memory 6, the data is read from the memory 6 and dealt with.

In this way, it is necessary to set various data required for each country in the nonvolatile memory 6 by using the connector 12 and the connector 19.
This can be realized by a simple operation of directly connecting the nonvolatile memory 6 to a state in which the nonvolatile memory 6 can be directly accessed and inputting a key signal designating a country from the keyboard 17 of the external input device 14.

In the above embodiment, conversion data for converting digital data into weight display data, data for designating decimal point position in display of unit price or price, and other display unit to be used in the display unit 8 are designated for the non-volatile memory. However, the present invention is not limited to this, and may be only conversion data for converting digital data into weight display data.

Further, in the above-described embodiment, the display unit provided with the weight, unit price, and price display portions is described, but the present invention is not limited to this, and the weight display unit alone may be used.

As described above in detail, according to the present invention, the non-volatile memory of the electronic scale can be directly accessed by the external input device 14, and the setting of the conversion data for converting the digital data into the weight display data can be performed. Accordingly, it is possible to provide a data setting method in an electronic scale that can be easily performed without requiring control processing of the electronic scale.

[Brief description of drawings]

1 shows a block diagram of an embodiment of the present invention, FIG. 1 is a block diagram, FIG. 2 is a partial circuit diagram showing a connection relationship between a CPU, a non-volatile memory and a connector in a scale, and FIG. 3 is an external input device. It is a flow chart which shows key processing of CPU. 1 ... Load cell, 2 ... A / D converter, 3 ... CP
U, 6 ... Non-volatile memory, 11 ... Bus line, 12
...... Connector, 14 …… External input device.

Claims (1)

[Claims] 1. A non-volatile memory storing conversion data for converting digital data output from a weight output unit into weight display data adapted to a weight unit used in a predetermined country, the digital data being stored in the nonvolatile memory. In an electronic scale that converts the weight display data based on the conversion data of the non-volatile memory and displays it on the display, connect a connector to the bus line to the non-volatile memory and set in advance for multiple countries by country By the selection operation performed by the external data processing device that stores the converted data, by the processing of this external data processing device, the non-volatile memory is directly accessed using the bus line through the connector and selected. A conversion data corresponding to the country is set in the non-volatile memory, and a data setting method in an electronic scale.