JPH0142364B2 - - Google Patents

Description

[Detailed Description of the Invention] This invention is an electronic digital display scale having a unit price preset function, in which the numerical values stored in each memory of the unit price preset device are used as preset data such as the tare weight, the price of each item, and the deposit. The present invention relates to a device that can also be used.

With electronic digital display scales, when a load is applied to the weighing section after setting the unit price and tare weight on the scale, the set tare weight is subtracted from the weight of this load, and this tare subtracted weight (net weight) is the set unit price. There are scales that calculate the price by adding up the weight, and display or print the weight, price, etc. These types of scales usually require the unit price and tare weight to be set before use. In addition, when shopping for several types of items, you can calculate the cumulative value for each purchase, and if you are selling a single item that does not require weighing, you can enter the price of each item and add it up. There are scales that allow you to input your deposit after finishing the transaction and calculate the change by subtracting the total shopping value from the deposit.

In addition, setting the above unit price one by one using a numeric keypad is inefficient and may lead to errors, so recently scales have been equipped with a unit price preset device, which allows a large number of numerical values to be stored in each memory of this unit price preset device. There is a system in which a predetermined unit price is stored, and by operating a predetermined unit price preset key, a predetermined unit price stored in a memory corresponding to the unit price preset key is read out and set in a unit price register.

In addition, to set the tare weight, the tare weight is generally placed on the weighing unit and the tare weight key is operated while the weight is being weighed, and the weight of the tare weight is transferred to the tare weight register and stored therein. In this case, the tare bag must be placed on the weighing section one by one, resulting in a decrease in efficiency. For this reason, in the case of a tare whose weight is known in advance, using the preset function is efficient as it allows you to set the tare amount with just a key operation.
It is very convenient to use the preset function.
However, if a tare weight presetting device, single item presetting device, deposit presetting device, etc. were provided separately in addition to the unit price presetting device, the configuration would be complicated, and manufacturing would be troublesome and expensive, as well as the overall configuration would be large. Moreover, if another preset device is provided in addition to the unit price preset device, each preset device must necessarily be made small.
Since the number of each preset is limited, efficient use may not be possible.

This invention was made in order to improve the above-mentioned situation, and the key codes of function keys such as the tare key, single item key, deposit key, etc. are stored in each memory of the unit price preset key along with a predetermined numerical value. By operating the unit price preset key, predetermined values are automatically transferred to the arithmetic control section as data such as tare quantity, price of each item, deposit, etc., so the memory for unit price preset can be used as is for tare weight. Since it can be used as a shared memory for presets such as quantity, price of each item, deposit, etc., the structure of the preset section is simple, manufacturing is easy and inexpensive, and the overall structure can be made compact. An object of the present invention is to provide a presetting device for an electronic digital display weighing scale, which can take up a large amount of memory and thus allow various settings to be made efficiently.

The present invention will be explained below with reference to embodiments shown in the drawings. 1 in the figure is the weight detection section, where an analog signal corresponding to the load detected by the weighing section is converted into a digital amount by an AD converter, counted by a reversible counter, etc., and a converted load signal corresponding to the load is sent to the system. 2
The weight is sent to the weight register 3 via the weight register 3. Further, the output of the register 3 is inputted to the arithmetic controller 5 via the path 4, and the arithmetic controller 5
The results and the like are displayed and output to a printer section 7 via a path 6.

Further, a unit price setter 9 consisting of a numeric keypad 8 or the like of the input operation section shown in FIG. The output of the unit price preset unit 14 is input to the unit price register 11 via a path 35.

The unit price preset device 14 is a memory provided corresponding to the unit price preset keys 16 (A to Q), and as shown in FIG.
A data memory section that stores predetermined numerical data (up to 5 digits) for each of (A to Q), and a key code memory section that stores function key code data that indicates the type of numerical value stored in this data memory section. It is equipped with
In this embodiment, when the key code is "0", unit price data, when "1", tare weight data, and when "2", single item price data,
In the case of "3", the deposit data is used.

Reference numeral 15 denotes a mode changeover switch that can be set to a ``read'' position or a ``write'' position.When setting data to the unit price preset device 14, it is set to the ``write'' position and data is read from the unit price preset device 14. When reading, set it to the "read" position. The setting and reading of data in the unit price preset unit 14 will be explained in detail later. Other function keys on the input operation section include a tare weight key 19a and a tare weight preset key 19b connected to the tare weight controller 18 in order to set the tare weight of the object to be weighed.

The tare weight key 19a measures the tare weight, transfers the weight data output from the weight detector 1 and stored in the weight register to the tare weight register 22 via the lines 34 and 26 controller 17, and sets the tare weight. do.

The tare amount preset key 19b is the unit price setting device 9.
The tare data set in the unit price register 11 by the above is transferred to the tare amount register 22 via the line 21 controller 17, and the tare amount is set.

In addition, the single item key 25 connected to the single item operation device 24, which is operated when adding the price of a single item that does not require weighing to the cumulative shopping value, is set in the unit price register 11 by the unit price setting device 9 or the like. The price of the single item thus determined is transferred to the arithmetic controller 5 via the line 12, added to the cumulative shopping value up to that point in the controller 5, and displayed on the display print section 7.

Further, the deposit key 28 connected to the deposit operating device 27, which is operated when the user receives the deposit and pays change after shopping is completed, is set in the unit price register 11 by the unit price setting device 9 or the like. The deposit amount data is transferred to the arithmetic controller 5 via the line 12, and this controller subtracts the cumulative shopping value up to that point from the deposit amount to obtain the change amount, and the display print section 7 calculates the amount of change. indicate.

Note that 29 is an erase key for clearing the set contents of the unit price register 11, etc., and 30 is an addition key for adding the price of the weighed result to the cumulative shopping value.

In the above configuration, when setting data to the unit price preset device 14, the selector switch 15 is first set to the "write" position as described above. Then, the user inputs the desired numerical value using the numeric keypad 8 of the unit price setting device 9. This input numerical value is stored in the unit price register 11.

Then, use the function keys to input the type of data for which the numerical value is to be used. That is, when using it as tare weight data, operate the tare weight preset key 19b, when using it as price data for a single item, operate the single item key 25, and when using it as deposit data, operate the deposit key 28. Manipulate. Note that if these function keys are not operated, they are treated as unit price data. By operating the function keys 19b, 25, and 28, signals are sent to the arithmetic controller 5 via paths 31, 32, and 33, respectively. The arithmetic controller 5 controls the function key 1 operated based on this signal.
Function key codes corresponding to 9b, 25, and 28 are set in the internal registers. That is, when the tare amount preset key 19b is operated, "1" is set, when the single item key 25 is operated, "2" is set, and the deposit key 2 is set.
If 8 is operated, "3" is set. Note that when none of the function keys 19b, 25, and 28 is operated, "0" is stored as an initial value in the register inside the arithmetic controller 5.

In the above state, unit price preset key 16
When you operate a predetermined key, for example the "A" key,
Data is transferred from the unit price register 11 via the line 13 to the data memory section corresponding to the "A" key of the unit price preset device 14 and stored therein, and arithmetic control data is also transferred to the key code memory section corresponding to the "A" key. The function key code is transferred from the device 5 via a path 12 and a path 13 and is stored.

Incidentally, along with the data transfer, the unit price register 11 and the registers inside the arithmetic controller 5 are cleared.

For example, when it is desired to set tare weight data 15g to the "B" key of the unit price preset key 16, the selector switch 5 is set to the "write" position.

Enter "15" from numeric keypad 8.

Press the tare amount preset key 19b.

Press the "B" key of the unit price preset key 16.

As a result of the above operations, the numerical value "15" is stored in the data memory section corresponding to the "B" key of the unit price preset device 14, and the function key code "1" is stored in the key code memory section.

In order to read out and use the data stored in the unit price preset device in the above configuration, the changeover switch 15 is first set to the "read" position.
Then, the user operates the unit price preset key 16 that stores the data he/she wants to use, for example, the "A" key. As a result, the unit price preset device 14
The function key code data stored in the key code memory section corresponding to the "A" key is transferred to the register inside the arithmetic controller 5 via the paths 13 and 12. The arithmetic controller 5 is
Control as shown in FIG. 4 is performed based on the function key code (FC) transferred to the register.

That is, when the key code is "0", the numerical data stored in the data memory section corresponding to the "A" key of the unit price preset device 14 is considered to be unit price data, and is stored in the unit price register 11 via the path 35. Transfer settings to prepare for the measurement calculation of "unit price x weight = price".

If the key code is "1", it is considered to be tare weight data, route 35, unit price register 11,
System 13, System 21, Controller 17 and System 26
The data is transferred and set to the tare weight register 22 via .

If the key code is "2", it is regarded as single item price data and is transferred to the single item register in the arithmetic controller 5 via the line 35, unit price register 11 and line 12, and the single item set in this register is set. Add the price data to the cumulative shopping value.

If the key code is "3", it is regarded as deposit data and is transferred to the deposit register in the arithmetic controller 5 via the line 35, unit price register 11 and line 12, and the deposit set in this register is Subtract the cumulative shopping value data from the money data to obtain change.

Now, as mentioned above, when the numerical value "15" is set in the data memory section corresponding to the "B" key of the unit price preset key 16 of the unit price preset device 14, and the key code "1" is set in the key code memory section. If you want to set the tare amount to 15g, set the selector switch 5 to the "read" position.

Press the "B" key of the unit price preset key 16.

By the above operation, the tare weight register 22
A tare weight of 15g can be set.

Once the data is set in the unit price preset device 14, except when changing the setting data,
Since the changeover switch 5 is set to the "read" position, the tare register 22
The setting of the tare amount can be substantially done by a single operation of the unit price preset key 16.

FIG. 5 shows another embodiment, in which the ROM
FIG. 2 is a block diagram showing an example of a case where a CPU (central processing unit) executes a control program stored in a read-only memory to perform predetermined control. In the figure, 100 is a key operation unit provided with the various keys shown in FIG. 2, and 105 is a microcomputer control unit including a unit price preset device, arithmetic controller, unit price register, tare weight register, controller, etc. shown in FIG. 101 is a weight detector, 1
07 is a display and a printer section, which are the same as those shown in FIG.

In the above embodiment, the unit price preset device 14 was configured to be able to store data such as the tare weight, the price of each item, and the deposit amount in addition to the unit price. It is conceivable to configure the system so that the information such as the following information can be stored.

In addition to the above method of inputting stored data to the preset device, it is also possible to input data directly from another computer or memory into the preset memory via an external interface.

There is also nothing wrong with using it in combination with the method of using the presetting device described in Japanese Patent Application No. 54-73755 ``Presetting device for electronic digital display scales''.

As described in detail above, this invention stores predetermined numerical values as well as key codes of function keys such as a tare key, single item key, deposit key, etc. in each memory of a unit price preset key, and operates a predetermined unit price preset key. This is characterized in that predetermined numerical values are automatically transferred to the arithmetic control unit as data such as tare weight, price of single item, deposit, etc.

Therefore, the memory for unit price presets and the memory for presetting tare weight, single item price, deposit, etc. can be shared, and if the memory for unit price presets is used as is, the presets for tare weight, single item price, deposit, etc. Since no memory is required for the
It is easy and inexpensive to manufacture, has a compact overall configuration, and has a large amount of memory for each preset, making it easy and efficient to set tare weight, individual item price, deposit, etc. At the same time, the desired data can be read out with one operation of the unit price preset key, making it easy to set the tare weight, etc., and the probability of erroneous operation is lower than when setting with two operations, allowing you to use the scale with confidence. I can do it.

Furthermore, if the number of preset keys is insufficient for each function, since they can be used interchangeably, a small number of preset keys can be used effectively.

[Brief explanation of drawings]

Fig. 1 is a block diagram of an embodiment of the present invention, Fig. 2 is a plan view of the key details of the input operation section of the same example, Fig. 3 is a memory diagram showing the memory contents of the unit price preset key, and Fig. 4 is a FIG. 5 is a flowchart showing the operation of the unit price preset key at the time of reading, and a block diagram showing an embodiment using a microcomputer. 1...Weight detection section, 3...Weight register, 5...
...Arithmetic controller, 7...Display print section, 8...Numeric keypad, 9...Unit price setter, 11...Unit price register, 14...Unit price preset device, 17...Controller, 19a...Tare weight key, 19b...Tare weight preset key, 22...Tare weight register, 24...
...Single operating device, 25...Single key, 27...Deposit operating device, 28...Deposit key.

Claims (1)

[Claims] 1. After storing several types of numerical values in each memory of the unit price preset device, by operating a specified unit price preset key, the specified numerical value stored in the memory corresponding to the unit price preset key can be recalled and set in the unit price register. In an electronic digital display scale having a unit price preset function, key codes of function keys such as a tare key, single item key, deposit key, etc. are stored in each memory of the unit price preset device along with a predetermined numerical value. An electronic digital display characterized in that, by operating a unit price preset key, predetermined numerical values are automatically transferred to a predetermined register as data such as tare weight, single item price, deposit, etc. Presetting device for scales.