JPH0333621A - Electronic scale - Google Patents

Abstract

PURPOSE:To make it easy to manipulate the apparatus and unnecessary to provide a place to install said apparatus, while enabling transmission of data in a short time, by providing a circuit which controls said transmission of data between a first memory and a second memory. CONSTITUTION:A memory card control part 12 of a CPU 1 is inserted in a memory card insertion hole 12a, so that a first memory 14 for storing a predetermined data and a memory card 13 in which a battery to feed power to the memory 14 is mounted are controlled. A sensor 20 is provided in the vicinity of the memory card insertion hole 12a within the apparatus. The sensor 20 detects when the memory card 13 is inserted into the memory card insertion hole 12a, with outputting a detecting signal M1. The memory card control part 12 transmits data and addresses or the like to the CPU 1 and a second memory RAM 11 via an input/output port 21. Accordingly, the apparatus can be manipulated in a simple manner. Moreover, the apparatus requires no special installing place. Transmission of data can be made in a short time.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an electronic weighing device that measures the weight of a product or articles, calculates the price of the product, the number of articles, etc., and displays the same.

“Conventional technology” In conventional electronic weighing devices, the unit price, product name, etc.
Various preset data such as LO (Price Look Up) data, product name example added text (promotional text) data such as "advertisement item" and "bargain item", and key assignment table data are stored in an internal memory.

For details, please refer to Japanese Patent Application Laid-open No. 6'4-26114 regarding an electronic weighing device previously proposed by the present applicant.

In addition, in conventional electronic weighing devices, it is necessary to use the preset data as a backup when the above-mentioned preset data is destroyed due to a runaway of the CPU (Central Processing Unit), which is installed inside the device and controls each part of the device. In order to set the same data as the preset data set in the weighing device, this electronic weighing device has a built-in interface circuit for a cassette data recorder and connects the cassette data recorder to the internal memory. Some devices allow data to be transferred to and from a non-cent data recorder.

For details, please refer to JP-A-59-10.0969, which describes a data input/output method for a storage device previously proposed by the present applicant.

``Problems to be Solved by the Invention'' By the way, in an electronic weighing device to which two conventional cassette data recorders are connected, when data is transferred between the cassette/soto data recorder and the internal memory,
The drawback is that it takes time to read and write data.

Furthermore, in order to use the cassette data recorder by connecting it to an electronic weighing device, it is necessary to connect an AC power source to an outlet and a cable. Furthermore, in order to retrieve desired data from the cassette data recorder, it is necessary to locate the beginning of the tape. That is, there is a drawback that the operation is complicated.

Furthermore, electronic weighing devices are usually installed above store counters, but even though this space is small, there is a drawback in that a large amount of space must be cleared to install the cassette data recorder.

The present invention was made in view of two circumstances, and aims to provide an electronic weighing device that can transfer data in a short period of time, is easy to operate, and does not require any installation space. .

"Means for Solving the Problem" A first invention provides a memory card insertion slot into which a memory car 1, which includes a first memory and a battery that supplies power to the first memory, is inserted; The present invention is characterized in that it includes two memories, and a control circuit that controls the transfer of predetermined data between the first memory and the second memory.

Further, in a second invention based on the first invention, the control circuit detects the voltage of the battery before transferring the predetermined data, and when it is determined that the battery needs to be replaced, a notification to that effect is provided. It is characterized by notification.

"Operation" According to the first invention, the control circuit controls the predetermined data between the first memo in the memory card inserted into the memory card insertion slot and the second memory provided inside the device. control the transfer of

Further, according to the second invention, the control circuit detects the voltage of the battery before transferring predetermined data, and when it is determined that the battery needs to be replaced, notifies the user that the battery needs to be replaced.

"Embodiment" Hereinafter, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a block diagram showing the configuration of an electronic weighing device according to an embodiment of the present invention, and FIG. 2 is a diagram showing the external configuration of the electronic weighing device according to an embodiment of the present invention. The general configuration of this electronic weighing device is almost the same as that of the electronic weighing device previously proposed by the present applicant (see Japanese Patent Application Laid-open No. 6426114), so a brief explanation will be provided.

In FIG. 1 and FIG. 2, 1 is a CPU (control circuit) that operates based on a preset program;
is a weighing section equipped with a plate-shaped weighing pan 2a, and weighing is performed by placing an object to be weighed on the weighing pan 2a.
A weighing signal corresponding to the weighing result is output from. 3 is a display section such as a plasma display, and a display section 3a for store staff.
It has two display surfaces: and a customer display section 3b. Reference numeral 4 denotes an operation section, which is composed of 50 preset keys 5, a numeric keypad 6, a function key 7, and a key switch 8 for switching modes and the like.

Further, 9 is a printing unit such as a thermal printer that prints on labels, receipts, etc., and 10 is a ROM, which includes a control program area that controls weighing processing, printing processing, display processing, and data writing processing described later, and kanji characters. It consists of a table that stores patterns.

Furthermore, 11 is a RAM, which is a working area l where various flags and registers are secured, as shown in Figure 3.
la, a preset key data file 11b for storing preset key data, and a PLU file ll.
c, a Japanese file with product name lid, a tally file lie for storing tally data, and a display buffer llf.
It is composed of.

Here, the preset key data file llb contains 50 preset keys PK (1) to
It has a flag area and a data area corresponding to each PK (50).

The PLU file Ilc stores unit price, tare weight, effective date, product name, etc. in association with each PLU number.

The product name addition sentence file lid stores product name addition sentences such as "advertisement item" and "bargain item" in association with each call number.

Further, in FIG. 1, 12 is a memory card control unit, which is inserted into the memory card insertion slot 12a in FIG. A card (hereinafter referred to as a memory card) 13 is controlled.

Here, FIG. 4 shows a circuit diagram of the memory card control section 12 and the memory card 13. In this figure, 14 is a memory, 15 is a replaceable battery built into the memory card 13, and its terminal voltage E is supplied to the memory 14, and also to the memory card control unit 12 via a battery monitor terminal 8M. supplied to 16 and 17 are reference power supplies of voltages E and E, respectively (similarly, E,>E2)
, 18 and 19 are comparators respectively, and when the voltage E of the battery 15 is higher than the reference voltages E and E, the battery check signals BC,
and BC, are output.

Further, 20 is a memory card insertion slot 12a in the electronic weighing device.
The memory card 13 was inserted into the memory card insertion slot 12a of the sensor provided nearby. It detects this and outputs a detection signal Ml. 21 is an input/output port,
The memory card control unit 12 transfers data, addresses, etc. to the CPU and RAM II via this input/output port 21.

In such a configuration, the memory card 13 and RAMI
The data writing process with respect to I will be explained based on the flowchart of FIG. First, after turning on the power, when the clerk switches the key switch 8 to the setting mode, a setting mode screen 3 shown in FIG. 6 is displayed on the clerk display 3a.
0 is displayed.

Here, when the clerk selects the seventh "memory card" mode, the CPU advances to step S1 and determines whether or not the memory card 13 is inserted into the memory card insertion slot 12a. The result of this judgment is “NO.”
”, that is, when the detection signal Ml is not output from the sensor 20, the process advances to step S2.

In step S2, a memory card insertion request screen 40 shown in FIG. 7 is displayed on the clerk display section 3a, and then the process proceeds to step S3.

In step S3, it is determined whether any key has been pressed. Then, if this judgment result is rYEsj, that is,
If any key is pressed, the program returns to the main program. On the other hand, if the determination result in step S3 is rNOj, the process returns to step S1 and waits for the memory card 13 to be inserted into the memory card insertion slot 12a.

On the other hand, if the judgment result in step S1 is rY E S J, that is, the memory card 1 is inserted into the memory card insertion slot 12a.
3 is inserted and the detection signal Ml is output from the sensor 20, the process advances to step S4.

In step S4, it is determined whether the voltage E of the battery 15 of the memory card 13 is smaller than the voltage E of the reference power supply 17. Then, if the judgment result is “YESJ”, that is,
The voltage E of battery ■5 is the voltage E.

Therefore, if the battery check signal BC2 is not output from the comparator 19, step S5 is performed.
Proceed to.

In step S5, it is determined that the battery 15 has expired or is empty, and a dead battery display screen 50 shown in FIG. 8 is displayed on the display section 3a for store staff. Then, the process returns to step S1 and waits for insertion of another memory card 13, insertion of battery 15, or insertion of a replaced memory card 13.

On the other hand, if the determination result in step S4 is "NO", that is, if the voltage E of the battery 15 is equal to or greater than the voltage E2 of the reference power supply 17, and the battery check signal BC3 is output from the comparator 18, Proceed to step S6.

In step S6, it is determined whether the voltage E of the battery 15 of the memory card 13 is smaller than the voltage El of the reference power source 16. Then, if the judgment result is “YESJ”, that is,
The voltage E of the battery 15 is the voltage E.

Therefore, if the battery check signal BC is not output from the comparator 18, step S7 is performed.
Proceed to.

In step S7, it is determined that the battery 15 is nearing the end of its life, and a battery replacement warning screen 60 shown in FIG. 9 is displayed for a certain period of time on the store clerk display section 3a.

In this case, the data writing and reading processes can be executed even if the clerk leaves the memory card 13 in the memo card slot 12a and does not replace the battery 15. Then, the process advances to step S8.

On the other hand, if the determination result in step S6 is rNOJ, 1. That is, since the voltage E of the battery 15 is equal to or greater than the voltage El of the reference voltage 11iii16, the battery check signal BC is output from the comparator 18.
If the voltage E of the battery 15 is a normal value, step S
Proceed to step 8.

In step S8, a key personnel request screen 70 shown in FIG. 10 is displayed on the store clerk display section 3a. Then, the process advances to step S9.

In step S9, it is determined whether any key has been pressed. And if this judgment result is rNOJ,
Repeat the same judgment until rY E S J. Then, the determination result in step S9 becomes rY E S J.
That is, if any key is pressed, step 81
Go to 0.

In step S10, it is determined whether the pressed key is "l" or not. If the result of this judgment is "NO",
Proceed to step S6l.

In step S6l, it is determined whether the pressed key is "2" or not. And if this judgment result is rNOJ,
Proceed to step S12.

2 In step SI2, it is determined whether the pressed key is "3" or not. If the result of this judgment is "NO", that is, if a key other than "1" to "3" is pressed, the manual input of that key is invalidated and the process returns to step S9. On the other hand, if the determination result in step S12 is "YESJ", that is, "3
'' key is pressed, the program returns to the main program.

On the other hand, if the determination result in step S10 is rYEsJ,
That is, when the "l" key is pressed, the store clerk inserts the memory card 13.
If you choose to transfer data from
Proceed to step 313.

In step S13, after executing a process of writing the data on the memory card 13 into a predetermined area of RAM II in the electronic weighing device, the process returns to the main program.

Further, if the determination result in step S6l is IY E S J, that is, if the "2" key is pressed and the clerk selects to transfer data from the electronic weighing device to the memory card 13, the process advances to step S14. move on.

In step S14, data in a predetermined area of the RAM 11 in the electronic weighing device is written to the memory card 13, and then the process returns to the main program.

Note that the data transfer in steps S13 and S14 is performed by C.
It can be done via PUI or directly without going through CPUUI.
That is, direct memory access (DMA) may be performed.

Furthermore, in the embodiment described above, the memory card 13
Although an example has been shown in which the memory card 13 is connected to the CPUI via the input/output board 21, it goes without saying that the memory card 13 may be directly connected to the bus of the CPU 1.

Furthermore, the memory card 1 used in the above-mentioned embodiment
3 is not rechargeable, so the battery 15 needs to be replaced. Therefore, as described above, the stored contents of the memory card 13 are lost when replacing the battery 15, so in the electronic weighing device described above, the battery 15 can be replaced with the memory card 13 inserted into the device. It has become. When the memory cart 13 is inserted into the device, the memory card 13 is supplied with a message from the device, so that the stored contents of the memory card 13 are not lost.

However, if the memory card 13 does not contain the E/1I215 and the memory card 1/13 is removed from the device, the stored contents of the memory card 13 will be lost. In this case, by monitoring the battery check signals BC and BC from the comparators 18 and 19, it is possible to detect that the battery 15 has been removed from the memory card 13. may display a warning such as ``The battery of the memory card has been removed. Please do not remove the memory card.j'' on the display unit 3 of the electronic weighing device.

Further, the electronic weighing device may be provided with a locking mechanism for the memory card 13 so that the memory card 13 is locked and cannot be removed when the battery 15 is removed.

However, the memory card 5 and 13 used in this embodiment may be of a type that includes a built-in rechargeable battery.

Further, in the embodiment described above, an example is shown in which only one memory card insertion slot 12a is provided, but a plurality of memory card insertion slots 12a may be provided so that a plurality of memory cards 13 can be inserted.

In addition, if one memory card 13 has insufficient storage capacity, another memory card 13 may be replaced and used.

Furthermore, in the embodiment described above, the memory card 13
In the above example, the voltage of the battery 15 is checked before data is transferred between the memory card 13 and the RAM II inside the device, but this check is automatically performed when the memory card 13 is inserted into the electronic weighing device. It may be possible to do so.

"Effects of the Invention" As explained above, according to the first invention, the following effects can be obtained.

■Data transfer takes only a short time.

6 ■After inserting the memory card into the memory card slot, you can operate it according to the guide displayed on the display.
It is simple and anyone can operate it.

■There is no need to install a cassette data recorder, which was required in the past.

■Easy to store and carry.

Further, according to the second invention, the following effects can be obtained.

■You can know when to replace the battery, so you won't forget to replace it and lose the contents of your memory card.

■Battery voltage is automatically checked when transferring data between the memory card and internal memory.
No special operation is required for checking.

■If you accidentally write data in the internal memory to a memory card with a dead battery and remove the memory card, the contents of the memory will be lost, but this can be prevented.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing the configuration of an electronic weighing device according to an embodiment of the present invention, and FIG. Figure, (b
) is a front view, FIG. 3 is a diagram showing an example of the configuration of RAM II in FIG. 1, FIG. 4 is a circuit diagram showing an example of the configuration of the memory control unit 12 and memory card 13, and FIG. 6 to 10 are front views showing display examples of the same embodiment. 1...CPU, 11...RAM, 12
...Memory card control section, 12a...
Memory card slot, 13...Memory card,
16.17...Reference power supply, 15...Battery, 18.19...Comparator, 20...
・Sensor.

Claims (2)

[Claims] (1) A memory card insertion slot into which a memory card including a first memory and a battery that supplies power to the first memory is inserted; a second memory; the first memory and the first memory; 1. An electronic weighing device comprising: a control circuit for controlling transfer of predetermined data between a second memory and a second memory. (2) The control circuit detects the voltage of the battery before transferring the predetermined data, and if it determines that the battery needs to be replaced, it notifies you of that fact. 1. The electronic weighing device according to 1.