JPH08145771A - Electronic rating scale - Google Patents

Abstract

PURPOSE: To clearly display a weight by inputting a prescribed key in the state where a message is displayed on a display part, judging the weighing data from a scale part is zero point or not by a weight judging means, and switching the message display to a weight display based on the weighing data by a weight display switching means when the zero point is judged. CONSTITUTION: When a key 15 is inputted while a message is displayed, the message display is released, and it is judged by a weight judging means whether the load corresponding to the weighing data from a scale part is zero point or not. When the load is judged to be the zero point, a weighing operation (weight, unit price, and amount) is displayed on a display part 14 by a weight display switching means. When the load is judged not to be the zero point, an error is displayed, but no weighing operation is displayed. When the zero setting conforming to this error display is precisely performed, the weighting operation is displayed, whereby the display of weight, unit price and amount and the message are switchingly displayed as occasion demands by use of one display part 14 to perform a clear weight display from zero point.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electronic fee scale that includes a display unit and a weighing unit for weighing the weight of a product, and displays the weight of the product based on weighing data from the weighing unit.

[0002]

2. Description of the Related Art An electronic charge balance has a balance section and a display section,
The weight of the product is weighed by this weighing unit, the price is calculated from the weight and the unit price based on the weighing data from the weighing unit, and the weight, unit price and price are displayed on the display unit.

Among conventional electronic charge balances, there are known ones having a function of displaying a message in addition to displaying a weight, a unit price, and a price.

For example, as shown in FIG. 10, a display tube 4 independent of the display tubes 1, 2, and 3 for displaying the weight, unit price, and price is provided. a
) Shown in FIG. 10), the operation instruction information for the operator such as “ENTER THE PLU #” is displayed. When the standby state continues for a predetermined period, the message display mode is entered, and “BARGAINS” shown in FIG. 10 (b).
Display promotional messages to customers such as "ALE DAY!"

Although not shown, it is known that one display tube is divided into an area for displaying a weight, a unit price and a price and an area for displaying a message.

FIG. 11 is a diagram showing an example of the flow of a message display canceling process when the message displayed on the electronic charge balance is canceled and normal contents are displayed.

First, it is judged whether a message is being displayed,
If it is determined that the message is not being displayed, this message display canceling process is ended.

When it is determined that the message is being displayed, it is determined whether or not there is a key input. If it is determined that there is a key input, the message display is canceled as the processing of step 1 (ST1), then the normal content is displayed, and the message display cancellation processing is terminated. .

If it is determined that no key has been input,
The load is 0 + 4d (
d determines whether it is larger than the effective minimum unit = minimum scale). Here, if it is determined that the load is greater than 0 + 4d, the process proceeds to the process of step 1 described above, and if it is determined that the load is 0 + 4d or less, this message display cancellation process is terminated. .

For example, when d = 1 g, when a weighing object of 5 g is placed on the weighing pan, the message display shown in FIG. 10 (b) is switched to the weighing operation display shown in FIG. 10 (c). , 5.00 g is displayed based on the measured data at this time.

[0011]

If the display tube 4 for the message is separately provided, there is a problem that the cost becomes high and the electronic charge scale becomes large as a device. Also, in the case where one display tube is divided into an area for displaying a weight, a unit price and a price and an area for displaying a message,
There was a problem that the letters of the message, weight, unit price, and price were small and difficult to see.

Therefore, it is possible to use one display tube as a whole and switch the weight, unit price, price display and message display as needed.

However, if, for example, a packaging that is not a product within 4d (4 scales) is placed on the weighing pan of the weighing unit, the message display is displayed by weight, unit price, etc. by key input.
When the display is switched to the price display, the weight of the weighed merchandise which is not "0" is displayed at the moment of switching. Also,
After that, when the product is placed on the weighing pan, the message display switches to the display of the weight, unit price, and price. At that moment, a non-zero weighing value within 4d is displayed, and then the weighing data from the weighing unit is used. The measured value will increase. Therefore, the customer may be wondered whether the zero point adjustment was performed correctly, or whether the weight display was based on weighing, and the problem that the relationship of trust with the customer is weakened in business transactions. there were.

Therefore, according to the present invention, it is possible to switch the display of the weight, unit price, and price and the display of the message as necessary by using one display, and it is possible to maintain a clear relationship of trust with the customer. It is an object of the present invention to provide an electronic fee scale capable of displaying weight.

[0015]

The invention according to claim 1 is
Equipped with a display unit and a weighing unit for weighing the weight of the product, the weight of the product is displayed on the display unit based on the weighing data from the weighing unit, and the electronic charge scale is capable of displaying a message on the display unit. When a predetermined key is input while a message is being displayed on the unit, the weight determination unit determines whether the weighing data of the weighing unit is the zero point and the weighing data of the weighing unit is zero by this weight determination unit. When it is judged to be a point, a weight display switching means for switching the message display on the display unit to the weight display based on the weighing data from the weighing unit is provided.

The invention according to claim 2 is provided with a display section and a weighing section for weighing the weight of the product, and the weight of the article is displayed on the display section based on the weighing data from the weighing section. In the electronic bill scale that can display a message,
If a predetermined key input is made while the message is displayed on the display, or if the weighing data from the weighing unit fluctuates beyond the preset range, immediately before this key input or weighing data fluctuation. Resetting weight judgment means for judging whether or not the weighing data from the weighing section of is within the range,
If the reset weight determination means determines that the weighing data of the weighing section does not fall within the range, there is provided weight display switching means for switching the message display on the display section to the weight display based on the weighing data from the weighing section. It is a thing.

[0017]

In the invention according to claim 1, when a predetermined key input is performed, the weight determination means determines whether or not the weighing data from the weighing section is zero point, and when it is determined as zero point, the weight is determined. The display switching means switches the message display on the display unit to the weight display based on the weighing data from the weighing unit.

Therefore, the zero point is displayed on the display unit at this time.

In the invention according to claim 2, when a predetermined key input is performed, the reset weight determination means determines whether or not the weighing data from the weighing section falls within a preset range. When it is determined that the weighing data from the weighing unit does not fall within the range, the weight display switching means switches the message display on the display unit to the weight display based on the weighing data from the weighing unit.

Therefore, the zero point is displayed on the display section at this time.

Further, when the weighing data from the weighing unit fluctuates beyond a preset range, the reset weight determination means determines whether the weighing data from the weighing unit falls within the preset range. When it is determined that the weighing data from the weighing unit does not fall within the range, the weight display switching means switches the message display on the display unit to the weight display based on the weighing data from the weighing unit.

Therefore, in general, the range is set with the upper limit value that cannot be determined as the zero point as the lower limit value and the lower limit value that cannot be determined as the weight of the product as the upper limit value, and at the moment when the product is placed on the weighing pan, The message display on the display unit is automatically switched to the weight display. In the weight display of this display unit, the display starts from the zero point, and the corresponding weight is displayed as the weighing data rises.

[0023]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention will be described below with reference to FIGS.
Will be described with reference to.

FIG. 1 shows an electronic fee scale 1 to which the present invention is applied.
It is a perspective view showing 1.

Reference numeral 12 denotes the apparatus main body, and the apparatus main body 12
A support shaft 13 is provided on the back surface of the display shaft, and a display unit 14 including a full-dot display tube is provided on the upper end of the support shaft 13.
Has been fixed.

A keyboard 15 and a label issuing port 16 are provided on the front surface of the apparatus body 12, and the apparatus body 1
An openable and closable paper cassette cover 12-1 is formed on the side of the label issuing port 16 side of No. 2, and when the paper cassette cover 12-1 is opened, a paper cassette storage unit (not shown) in which a paper cassette is set is shown. ) Is formed.

A weighing pan 17 on which an object to be weighed is placed is provided on the upper surface of the apparatus main body.

Further, as shown in FIGS. 2 and 3, a sheet holder 21 for accommodating sheets is provided on the rear side (customer side) of the apparatus main body 12. As shown in FIG. 4, the seat holder 21 has an upper end 22-1 rotatably fixed on the case (or housing) of the apparatus main body 12, and both side end parts and a lower end part 22-2 are free ends. A cover 22 formed by fixing a transparent resin sheet 22-3 to a frame member, and a pedestal 23 in which the entire lower surface is fixed to the case of the apparatus main body 12 and a concave portion is formed in the upper surface. It is configured. Further, a knob portion 22-4 for opening and closing the cover 22 is formed at the center of the lower end portion of the frame member of the cover 22.

An acute-angled concave portion is formed inside the lower end portion 22-2, while an acute-angled convex portion is formed at a corresponding lower end portion of the pedestal portion 23. When is closed, the concave portion and the convex portion are engaged with each other to properly fix the cover 22 so that the cover 22 is not opened carelessly.

Therefore, an advertising sheet on which advertising text or a logo mark representing an image of a store or store information such as regular holidays is printed (drawn) is fitted into the concave portion of the base portion 23, and the cover 22 is used to cover the advertisement sheet. To prevent the advertising sheet from coming off and protect it from moisture and dust. Further, through the resin sheet 22-3 of the cover 22, advertisement texts, logo marks or store information printed on the sheet are posted.

As shown in FIG. 5A, the screen of the display section 14 is a display screen in a normal state (in a normal standby state). That is, the screen shows the PLU No. The display is divided into an area for displaying the information "ENTER THE PLU #" for requesting input, an area for displaying the weight, an area for displaying the unit price, and an area for displaying the price.

In case of the message mode, FIG.
As shown in (b), the entire screen of the display unit 14 has a message “BAGEN SALE D” for sales promotion.
AY! "Is displayed. If the message is too long to fit on the screen of the display unit 14, the message is displayed in a flowing manner. In FIG. 5 (b), “Y
!! "Is not displayed, but the characters of the message flow to the left, and the characters of" Y! "Are sequentially displayed.

FIG. 5 (c) is a diagram showing a display example at the time of occurrence of an error requiring the zero point correction.

FIG. 6 is a block diagram showing a circuit configuration of a main part of the electronic charge balance 11.

Reference numeral 31 is a CPU (cen
tral processing unit).

A ROM (read only memory) 32 in which program data for processing performed by the CPU 31 is stored, a RAM (random access memory) 33 in which areas of various memories used when the CPU 31 performs processing are formed, and each product PLU (price look up) with product information stored in
The file 34, an RS-232C interface 35 for connecting to an external device (for example, a host computer or other electronic charge balance) via an RS-232C line, and a timer 36 for measuring time are respectively connected via a system bus 37. It is connected to the CPU 31.

The CPU 31 also outputs analog data output from the balance section 38 via the system bus 37.
A / D (analogue / digital) converter 39 for converting (measurement signal) into digital data (measurement data), keyboard controller 40 for controlling the keyboard 15, display controller 41 for controlling the display unit 14, printer 4
2 is connected to each of the printer controllers 43.

The balance section 38, to which the balance pan 17 is fixed, comprises a load cell and an amplifier (not shown) for outputting an analog signal corresponding to the weight of the product on the balance pan 17.

Further, the RAM 33 is formed with a zero point flag 33-1 which is set when the measured value is determined to be the zero point.

FIG. 7 is a diagram showing the flow of the message display start processing performed by the CPU 31. It should be noted that this process is periodically performed by, for example, an interrupt (so-called timer interrupt) performed when the interrupt timer connected to the CPU 31 counts up.

First, it is determined whether or not a message is being displayed on the display unit 14. If it is determined that the message is being displayed, the message display start process is ended.

When it is judged that the message is not being displayed, it is judged whether or not the message is being printed. If it is determined that printing is in progress, the timer 3 is set as the process of step 1 (ST1).
Set the time set in 6 (time that can be estimated that the metering operation will not be performed for the time being) again (reset the timer) and end this message display start processing.

If it is determined that the printing is not in progress, it is determined whether any key on the keyboard 15 has been input. If it is determined that there is a key input, the process proceeds to the above-mentioned ST1 process.

If it is determined that no key has been input,
Determine if it is in non-weighing mode. If the non-metering mode is determined here, the process proceeds to step 2 (ST2) described later.

When it is determined that the weighing mode is selected, whether the load equivalent to the weighing data obtained from the weighing unit 38 via the A / D converter 39 at this time is larger than 0 + 4d (4 scales) (5 scales or more). Determine whether or not. If it is determined that the load is larger than 0 + 4d, the above-mentioned step 1
The process is moved to. Also, the load is 0+
If it is determined to be 4d or less, the process proceeds to the next step 2.

In the process of step 2 (ST2), the timer 36 measures the preset time and
It is judged whether or not the time measurement of is finished. Here, if it is determined that the timer 36 has not timed, this message display start process is ended.

When it is determined that the timer 36 has timed, the screen of the full-dot display tube of the display unit 14 is erased and a message is displayed. Then, this message display start processing is ended.

FIG. 8 is a diagram showing the flow of the message display canceling process performed by the CPU 31. It should be noted that this processing is also periodically executed by a timer interrupt of the CPU 31, for example.

First, it is determined whether or not a message is being displayed on the display unit 14. If it is determined that the message is not being displayed, the message display canceling process is ended.

When it is determined that the message is being displayed, it is determined whether any key on the keyboard 15 has been input. Here, if it is determined that no key has been input, this message display canceling process is terminated.

When it is judged that a key input has been made, the message display on the display unit 14 is canceled and the load equivalent to the weighing data obtained from the weighing unit 38 via the A / D converter 39 is applied. It is judged whether it is the zero point (weight judgment means). Here, when the load is determined to be the zero point, the display unit 14
The weighing operation display for displaying the weight / unit price / price is displayed (weight display switching means), and this message display cancellation processing is ended.

If it is judged that the load is not the zero point,
"WEIGHT NOT ZERO" indicating a zero point error is displayed, and as a process of step 3 (ST3), a waiting state until the ZERO key (not shown) for setting the zero point provided on the keyboard 15 is input Becomes

When the ZERO key is input, the weighing data obtained from the weighing unit 38 via the A / D converter 39 at the time of inputting the ZERO key is set as a zero point. ZERO key processing for setting is performed, and it is determined whether the zero point set by this ZERO key processing is an allowable zero point within a preset range. If it is determined that the set zero point is not an allowable zero point, "OUT OF0" indicating a zero setting error is displayed, and the process returns to step 3 again.

When it is determined that the set zero point is an allowable zero point, the weighing operation is displayed on the display unit 14 and the message display canceling process is terminated.

In the first embodiment having such a configuration,
When there is no change in load exceeding 0 + 4d, key input and printing are not performed, and the time set in the timer 36 elapses, the display unit 14 automatically displays a message such as the screen shown in FIG. 5 (b). Is displayed.

When a key is input during the display of this message, the display of the message is cancelled, and it is determined whether the load equivalent to the weighing data from the weighing section 38 is at the zero point.

When the load is determined to be the zero point, the weighing operation is displayed. That is, the weight / unit price / price is displayed on the display unit 14.
To be displayed. For example, it is displayed like the screen shown in FIG. Further, when it is determined that the load is not the zero point, an error display, for example, a screen as shown in FIG. 5 (c) is displayed, and the weighing operation is not displayed. When the zero point setting which copes with this error display is correctly performed, the display of the weighing operation is performed.

As described above, according to the first embodiment, when the message display is canceled by the key input during the message display, it is determined whether the load equivalent to the weighing data from the weighing section 38 is the zero point. , If the load is zero, the weighing operation (weight,
(Unit price, price) is displayed and an error is displayed if the load is not at zero point. By using one display unit 14, display of weight, unit price, price and message display can be performed as necessary. Since the weight can be switched and the weight display is always started from the zero point, it is possible to perform a clear weight display that can maintain a trusting relationship with the customer.

Further, since the sheet holder 21 is provided on the back surface of the apparatus main body 12, it is possible to store an advertisement sheet such as an advertisement, a logo mark, and store information. Can be effectively used for advertising, and there is no risk of the back surface of the apparatus main body 12 becoming soiled with an adhesive or the like, and the advertising sheet can be prevented from being soiled by moisture or the like.

A second embodiment of the present invention will be described with reference to FIG.

Since the difference between the second embodiment and the above-mentioned first embodiment lies in the program for message display cancellation processing shown in FIG. 9 and the method of using the memory used by this program, the electronic charge balance is calculated. Reference numeral 11 has almost the same configuration as that of the first embodiment described above, and the same members are designated by the same reference numerals and the description thereof will be omitted (see FIGS. 1 to 6).

FIG. 9 is a diagram showing the flow of the message display cancellation processing performed by the CPU 31.

First, it is determined whether or not a message is being displayed on the display unit 14. If it is determined that the message is not being displayed, the message display canceling process is ended.

When it is determined that the message is being displayed, it is determined whether any key on the keyboard 15 has been input. If it is determined that there is a key input, the process proceeds to step 4 (ST4) described later.

If it is determined that no key has been input,
It is determined whether or not the weighing data obtained from the weighing unit 38 via the A / D converter 39 has an equivalent load variation. If it is determined that the load does not fluctuate, the message display canceling process is terminated.

When it is determined that the load fluctuates, it is determined whether or not the load at that time is larger than 0 + 4d (0 + 5d or more). If it is determined that the load is larger than 0 + 4d, the process proceeds to step 4 described later.

If it is judged that the load is 0 + 4d or less,
It is determined whether or not the load equivalent to the weighing data from the weighing section 38 is the zero point (reset weight determining means). Here, when the load is determined to be the zero point, the zero point flag 33-1 formed in the RAM 33 is set to "0" and the message display canceling process is terminated. When it is determined that the load is not the zero point, the zero point flag 33-1 is set to "1" and the message display canceling process is terminated.

In the process of step 4 (ST4), the message displayed on the display unit 14 is canceled and it is determined whether or not 0 is set in the zero point flag 33-1 (reset weight determination means). ). If it is determined that the zero point flag 33-1 is set to 0, a weighing operation display for displaying the weight, unit price, and price is displayed on the display unit 14 (weight display switching means), and this message display cancellation processing is ended. It is supposed to do.

When it is determined that the zero point flag is not set to 0, that is, 1 is set, "WEIGHT NOT ZERO" indicating a zero point error is displayed and the processing of step 5 (ST5) is executed. , It is in a standby state until the ZERO key (not shown) for setting the zero point provided on the keyboard 15 is input.

When the ZERO key is input, the weighing data obtained from the weighing unit 38 via the A / D converter 39 at the time of inputting the ZERO key is set as a zero point. ZERO key processing for setting is performed, and it is determined whether the zero point set by this ZERO key processing is an allowable zero point within a preset range. If it is determined that the set zero point is not an allowable zero point, "OUT OF0" indicating a zero setting error is displayed, and the process returns to step 5 again.

When it is judged that the set zero point is an allowable zero point, the zero point flag 33-1 is set to 0,
The weighing operation is displayed on the display unit 14, and the message display canceling process is ended.

In the second embodiment having such a structure,
While displaying a message, for example, the one shown in Fig. 5 (b),
When the key is input, the message display is canceled and it is confirmed whether 0 is set in the zero point flag 33-1. As a result of this confirmation, if the zero point flag 33-1 is set to 0, the weighing operation is displayed as it is, for example, the display shown in FIG. 5A, and if 1 is set, a zero point error, for example, When the display shown in FIG. 5C is performed and the zero point is set, the weighing operation is displayed.

This zero point flag 33-1 stores whether or not the load equivalent to the measured data is the zero point up to one cycle before the program processing, and when the load fluctuation occurs, it is surely zero. It can be confirmed whether or not it was a point.

Therefore, if the zero point flag 33-1 is set to 0, the load can be surely confirmed to be the zero point in the previous state, and the weighing operation can be displayed as it is. On the other hand, if the zero point flag 33-1 is set to 1, it can be determined that the load is not the zero point in the previous state, so it is necessary to set the zero point.

Further, the load is 0 + 4d while the message is displayed.
When the fluctuation that does not exceed the value occurs, it is judged whether the load equivalent to the weighing data is at the zero point, and if the load is at the zero point (if the fluctuation is within a minute range that can be judged as the zero point),
The zero point flag 33-1 is set to 0, and if the load is not the zero point (if the fluctuation cannot be ignored and cannot be ignored), the zero point flag is set to 1.

Further, the load is 0 + 4 while the message is displayed.
When the fluctuation exceeding d occurs, that is, when the object to be weighed (product) is placed on the weighing pan 17, whether the message display is canceled and the zero point flag 33-1 is set to 0 or not. To confirm. By this confirmation, the zero point flag 33-1
If 0 is set to, the weighing operation is displayed as it is, and if 1 is set, it is assumed that something is placed on the weighing pan 17 before the object to be weighed is placed. When a zero point error is displayed and the zero point is set, the weighing operation is displayed.

As described above, according to the second embodiment, when the load fluctuates within 0 + 4d during the message display, it is judged whether the load is at the zero point or not, and 0 or 1 is set. When the zero point flag 33-1 is provided and the message display is released by key input or placement of the object to be weighed, the zero point flag 33-1 is confirmed and 0 indicating that the load is the zero point is displayed. If it is set, the weighing operation (weight,
(Unit price, price) is displayed, and when 1 indicating that the load is not the zero point is set, the error display is performed and the weight display is always started from the zero point.
It is possible to obtain the same effects as those of the first embodiment described above, and it is possible to automatically and surely display the weighing operation in which the load is raised from 0 simply by placing the product on the weighing pan 17. Operability can be improved.

In the above two embodiments, the timer interrupt is used to display the message for sales promotion. However, the present invention is not limited to this. A message for sales promotion may be displayed by key operation.

[0079]

As described above in detail, according to the present invention,
With one display, you can switch between weight, unit price, price display and message display as needed, and you can always display the weighing operation from the zero point. It is possible to provide an electronic fee scale that can display a clear weight display that can maintain a trusting relationship.

[Brief description of drawings]

FIG. 1 is a perspective view showing an electronic fee scale according to a first embodiment of the present invention.

FIG. 2 is a perspective view showing a back surface of the electronic charge balance of the embodiment.

FIG. 3 is a perspective view showing a sheet holder of the electronic fee scale of the embodiment.

FIG. 4 is a cross-sectional view showing the structure of the sheet holder of the electronic toll scale of the embodiment.

FIG. 5 is a diagram showing a display example of a screen of a display unit of the electronic charge balance of the embodiment.

FIG. 6 is a block diagram showing a circuit configuration of a main part of the electronic charge balance of the embodiment.

FIG. 7 is a diagram showing a flow of a message display start process performed by the electronic fee scale of the embodiment.

FIG. 8 is a diagram showing a flow of message display cancellation processing performed by the electronic charge balance of the embodiment.

FIG. 9 is a diagram showing a flow of message display cancellation processing performed by the electronic toll balance according to the second embodiment of the present invention.

FIG. 10 is a diagram showing an example of a display unit of a conventional electronic charge balance.

FIG. 11 is a diagram showing a flow of a message display cancellation process performed by a conventional electronic fee scale.

[Explanation of symbols]

 12 ... Device main body, 14 ... Display unit, 15 ... Keyboard, 21 ... Sheet holder, 31 ... CPU, 33-1 ... Zero point flag, 36 ... Timer, 38 ... Scale section.

Claims (2)

[Claims] 1. A display unit and a weighing unit for weighing the weight of a product are provided, and the weight of the product is displayed on the display unit based on the weighing data from the weighing unit, and a message can be displayed on the display unit. In an electronic fee scale, when a predetermined key is input while a message is displayed on the display unit, a weight determination unit for determining whether or not the weighing data of the scale unit is zero point, and the weight determination unit. When the weighing data of the weighing unit is determined to be a zero point by the means, a weight display switching unit is provided for switching the message display of the display unit to the weight display based on the weighing data from the weighing unit. Charge scale. 2. A display unit and a weighing unit for weighing the weight of the product are provided, and the weight of the product is displayed on the display unit based on the weighing data from the weighing unit, and a message can be displayed on the display unit. In the electronic fee scale, if a predetermined key input is performed while the message is displayed on the display unit, or if the weighing data from the scale unit fluctuates beyond a preset range, this key input Or resetting weight determining means for determining whether or not the weighing data from the weighing unit immediately before the variation of the weighing data falls within the range.
When the reset weight determination means determines that the weighing data of the weighing section does not fall within the range, the weight display switching means switches the message display of the display section to the weight display based on the weighing data from the weighing section. An electronic charge balance characterized by having and.