JP2000321120A - Pickup weighing apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To weigh an article picked up by a client automatically while determining the kind of the article by mounting a large number of articles previously on a mounting table and displaying the difference between a stored weight before an article is picked up and the weight after a required quantity of article is picked up. SOLUTION: The weighing apparatus comprises a computer section 24 and a printer section 30. The computer section 24 comprises a CPU 21, an ROM 22 and an RAM 23 provided with a weight value register and a display mode flag memory area. The computer section 24 is connected with a load cell 25 for measuring a picked up weight through an A/D conversion circuit 26 and provided with a unit price set switch 27, an article number set switch 28, a completion key 14 and a switching key 15. A printer section 30 prints a data on a shopping card and a liquid display 11 displays the data. A buzzer 32 sounds if a weight data decreases when a shopping card is not inserted.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a scale for weighing goods purchased by a customer at a retail store, a tenant, or the like, and a weighing / selling system using the scale. The present invention relates to a take-off and weighing device.

[0002]

2. Description of the Related Art A conventional technique is disclosed in Japanese Patent Laid-Open No. 4-149.
No. 799 discloses a method. In this publication,
Without placing clerks in the product display area, only the weighing scale is placed, and the customer weighs the weighed product by the amount desired by the weighing scale, issues a price label, and inserts the product. A system is described in which the label is attached to a bag and the payment is made at a checkout site. Also, in this system, the customer first presses the desired product key from among a plurality of preset keys, then takes out the desired product from the product display floor, weighs it on the scale, and presses the print key to print the label. The operation of issuing is also described.

[0003]

However, in the above-described method, only a part of the purchased product is weighed on the scale, or the purchased product is operated with a preset key, or the product is affixed thereto. Even if there is a discrepancy between the label and the operator, there is no countermeasure except for the operator operating the cash register to find it, and there is a problem that the burden imposed on the operator is large, and the solution has been an issue. . The present invention has been made under such a background, and it is an object of the present invention to provide a take-off weighing apparatus capable of automatically weighing the type and quantity of goods purchased by a customer.

[0004]

According to the first aspect of the present invention, when a large amount of commodities are previously placed on a mounting table and a required amount of commodities are removed from the mounting table, the amount of the unloaded product is reduced. A weight measuring unit for determining the weight of the product, a total weight display means for displaying the total weight of the product placed on the mounting table, and the stored last weight value and the required amount of the product were removed. A withdrawal weighing device comprising: a withdrawal amount display means for displaying a difference from a later weight value.

According to a second aspect of the present invention, in the unloading and weighing apparatus according to the first aspect, by switching the display mode of the display, the display by the total weight display unit and the display by the unloading amount display unit are performed. It is characterized by being shared.

[0008] The invention according to claim 3 is provided for each type of a large number of commodities previously mounted on the mounting table, and when a required amount of commodities is removed from the mounting table, the weight of the removed amount is obtained. A withdrawal weighing unit in which product information of the product is set, and recording means for recording purchase data based on the product information and the obtained weight for each customer; The update of the previously stored weight value for obtaining the weight value is performed at the time of the recording.

The invention according to claim 4 is provided for each type of a large number of commodities previously mounted on the mounting table, and when a required amount of commodities is removed from the mounting table, the weight of the unloaded product is reduced. A withdrawal weighing unit in which product information of the product is set, and input means for inputting customer identification information, and updating of the last weight value stored to determine the weight of the withdrawn product is And a take-out weighing device, which is performed when the input means performs the input.

[0008] The invention according to claim 5 is provided for each kind of a large number of commodities previously mounted on the mounting table, and when a customer removes a required amount of commodities from the mounting table, the amount of the unloaded product is reduced. A take-off and weighing unit in which product information of the product is obtained, a recording unit that records purchase data based on the product information and the detected weight for each customer, and a record that the recording unit records Detecting means for detecting the medium, and updating the previous weight value stored for obtaining the weight of the medium removed is performed when detection by the detecting means is performed. A metering device is provided.

The invention according to claim 6 is provided for each type of a large number of commodities previously mounted on the mounting table, and when a required amount of commodities is removed from the mounting table, the weight of the removed product is obtained. The last weight value which has a take-off weighing section in which the product information of the product is set, and a completion key which is operated when the take-off is completed, and is stored in order to obtain the weight of the take-off. Is provided when the completion key is operated.

[0010] The invention according to claim 7 is provided for each kind of a large number of commodities previously mounted on the mounting table, and when a required amount of commodities is removed from the mounting table, the weight of the removed amount is obtained. The withdrawal weighing unit in which the product information of the product is set, and a sensor that detects the approach of a person, and the update of the previous weight value stored to obtain the weight of the withdrawn is A drop-off weighing device, which is performed when an approach of a person is detected, is provided.

[0011] The invention according to claim 8 is provided for each type of a large number of commodities previously mounted on the mounting table, and when a required amount of commodities is removed from the mounting table, the weight of the removed amount is obtained. A weighing unit in which product information of the product is set, a recording unit for recording purchase data based on the product information and the obtained weight for each customer, and a weighing unit when it is determined that the recording is performed. An update key for updating a previously stored weight value for obtaining the weight of the unloaded portion is provided.

[0012]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a diagram showing a layout of a sales floor of a self-service side dish restaurant in which a take-off weighing device according to an embodiment of the present invention is installed and a weighing and selling system is adopted. In this figure, reference numeral 1 denotes a sales area of a self-service side dish shop, a shopping card receiving area where a customer receives shopping cards 3 one by one near an entrance 2, and a plurality of containers and a plurality of containers for the customer to put goods in and take home. There is provided a container and a tray place on which a tray 4 for placing the goods and moving in the store is placed.

At the back of the store, there is a weighing goods display space 5, on which a plurality of kinds of merchandise unloading and weighing devices 6 are placed, on which a different kind of goods (for example, side dishes) is placed.
The bat containing the is placed. A cash register 8 is provided in a checkout area 7 near the exit 9, and a wand scanner (a hand-held bar code scanner) for reading bar codes one by one is provided.

At the upper end of the cash register 8, there is provided a customer display having a touch panel for an operator in the center. When the bar code is read, data in which the amount column of the bar code and the check digit column are replaced with zero or Using the product number as a key, data such as the product name and unit price are read from the stored product file, the product name and barcode price are displayed on the display, and the product is printed out on the receipt to register the product and make payment. It has become. Further in the back is a cooking area 10 for making products (prepared foods).

FIG. 2 is a perspective view of the unloading and weighing device 6. A liquid crystal display 11 for displaying weight, unit price and price is provided on the upper front part. There are notations of “gross weight” and “removed”, and a “▲” mark 12 lights up on either character in accordance with the display mode. In addition, there is a product description notation 13 at the lower left, and a completion key 15 on the right.
Further, a switching key 15 for switching the display between the "gross weight" and the "removed" is provided. Further, a shopping card insertion slot 16 is provided at the right end, and a weighing dish 17 is provided at an upper rear portion of the apparatus.

FIG. 3 is a block diagram showing an electric circuit configuration of the unloading and weighing device 6, and includes a CPU 21 and a ROM 2.
2 and a RAM 23, and a computer unit 24. The RAM 23 is provided with a storage area for a previous weight value register and a display mode flag. A load cell 25 for measuring the weight removed is connected to the computer unit 24 via an A / D conversion circuit 26.
Further, a unit price setting switch 27, a product number setting switch 28,
A completion key 14 and a switching key 15 are provided. The printer unit 30 prints data on a shopping card and displays the data on the liquid crystal display 11. The buzzer 32 has a function to sound when there is a decrease in the weighing data when the shopping card is not inserted.

The unit price setting switch 27 is composed of a dip switch placed at a position where the customer cannot operate, and a unit price per weight is set. The part number setting switch 28
Is set with the identification number of the product to be placed. The card sensor 33 of the printer unit 30 detects whether or not the shopping card has been inserted into the insertion slot.
In order to determine the printing position of the barcode newly printed on the shopping card by the thermal head 35, the printing position mark 45 already printed on the shopping card is detected. The print position sensor 34 is composed of a reflection type optical sensor, and is provided above the shopping card passing position of the mark. (Not shown) The motor 36 drives the platen roller to take in and discharge the shopping card.

FIG. 4 is a diagram showing a shape and a printing example of a shopping card used in the unloading and weighing device according to one embodiment of the present invention. This shopping card 3 is a card in which the insertion direction is printed in advance, and NONPLU (comprising a product code and price data) bar codes 43, 44,. The readable characters and the price 46 of the product are printed. A printing position mark 45 is printed on the right side of the bar codes 43, 44,... To serve as a guide for printing the next data.

Next, a display example of each case of the liquid crystal display 11 of the unloading and weighing device 6 will be described with reference to FIG. a. The display at the time of the gross weight display mode in a case where 5000 g of products are taken down on the mounting table is shown. b. In the display when the switching key is pressed once from the state of a to set the display mode to the removal amount, the set unit price 15
0 yen is displayed. c. In the display when the required amount of the removed commodity is removed from the state of b, a weight of 256 g, a unit price of 150 yen, and a price of 384 yen are displayed. d. Next, a unit price of 150 yen is displayed in a display when the completion key is pressed. At this time, the current weighing value is written to the previous weight value register. e. Next, the display when the switch key is pressed once is 4744.
g is displayed. It can be seen that the weight value of the removed portion is equal to the weight value of a minus the weight value of e.

Next, the operation of the above-mentioned unloading and weighing device 6 will be described with reference to the flowchart shown in FIG. FIG. 6 shows an outline of an operation of performing weighing assuming that the unit price and the product number are set in advance. In step S1 (hereinafter simply referred to as S1 etc.), A / D
The weight of the product placed on the mounting table is measured based on the data from the conversion circuit. S2: It is determined whether or not the switching key has been turned on. If the determination is NO, the process proceeds to S3, and if the determination is YES, the process proceeds to S8. S3: It is determined whether or not the completion key has been pressed, and if NO, the process proceeds to S4, and if YES, the process proceeds to S9.

S4: In a state where the card sensor does not detect the card, and whether or not the commodity is withdrawn is determined based on whether or not the weight value in S1 is smaller than the value of the previous weight register. If the result of the determination is YES, an error message is displayed and the buzzer sounds for a predetermined time to notify the user of the error. When the result of the determination is NO, nothing is performed, and the process proceeds to S5. S5: Based on the display mode flag, it is determined whether or not the display is in the gross weight display mode. If NO, the process proceeds to S7, and if YES, the process proceeds to S6.

S6: The weight value obtained in the process of S1 is displayed.
The “▲” mark is lit on the gross weight part. S7: A value obtained by subtracting the weight value obtained in the processing of S1 from the value of the previous weight value register is taken out and displayed as a weight, and the price is calculated by multiplying the unit price data read out from the unit price setting table by the removed weight value. And display it together with the unit price. In addition, the “▲” mark is turned on at the place where it is removed, the processing is completed, and the process returns to the start.

S8: When the switching key is pressed in S2, the set or reset state of the display mode flag is inverted, and the process returns to the start.

S9: When the display mode is the unloading weight display mode, it is determined whether or not the card sensor detects a card. If YES, the process proceeds to S10, and if NO, the process proceeds to S12. I do. S10: The data obtained in S7 is converted into a bar code, printed on a card as shown in a printing example, and the card is ejected.

S11: The weight value obtained in S1 is written in the previous weight value register to update the previous weight value, and the process returns to the start. S12: It is determined whether or not a product has been added to the mounting table, based on whether or not the weight value has increased from the value of the previous weight value register. If YES, the process proceeds to S11, and N
When it is O, the process proceeds to S13. S13: An error is notified and the process returns to the start.

The operation of one embodiment of the present invention has been described above in detail with reference to the drawings. However, the present invention is not limited to this embodiment, and a design change or the like may be made without departing from the gist of the present invention. The present invention is also included in the present invention. For example, the present invention can be applied to the following modifications.

A. The recording means may record the weighing data as the amount taken down instead of the price. In this case, at the cash register, when reading the record data, the corresponding unit price of the product file is read from the product number recorded together and multiplied by the weighing data to calculate the price.

B. Even in a system that does not use a shopping card, for example, a customer's fingerprint can be read by a weighing device,
Make this data readable by other weighing devices and cash registers,
The weighing data may be recorded for each of the data, and the payment may be made at a cash register. Further, Japanese Patent Application Laid-Open No.
No. 9799, NONP
It is also possible to print and record with an LU barcode and read it with a cash register.

C. Each weighing device and the cash register are connected so that they can be updated, and when a shopping card in which an ID code is recorded is read by a certain weighing device, a file is provided in a storage means readable and writable by any device and the card number is purchased there as a key. Create an information area and write it, and if the same customer drops off the product with another weighing device, add it to this area and write it in. The data may be read from the corresponding purchase information area and settled, and then this area may be deleted.

D. Instead of printing and recording on the card, a storage means capable of reading and writing the card is provided. For example, as a magnetic card or an IC card, each weighing device writes and records the amount of data taken down in the storage means of the card. Good. In this case, a device that reads and writes a card corresponds to a card detection unit. The cashier reads out the stored information, adjusts the payment, and clears it.

E. Not only those that weigh the weight of the removed product, such as "croquette" and "
In the case of products sold in quantities, the unit price may be set to the unit weight and the number may be counted by dividing the weight. In the weighing device in this case, a new setting switch is provided, and when the switch is turned “ON” or “OFF”, a similar flag is provided in the product data at the cash register to switch the processing of weight and number.

F. In a tenant that occupies only one corner of a large store such as a supermarket, only one weighing device may be used and only one product may be handled. g. The bar code reading device of the cash register is not limited to the wand scanner, and a device that can simultaneously read a plurality of bar codes with a fixed scanner may be used.

H. A plurality of weighing units may be provided in one weighing device. i. If the weighing unit number and the product number correspond to each other, the weighing unit number may be set in the product number setting switch. j. The card is not limited to a card, but may be anything that can identify the customer. For example, an IC chip that can be read and written in a non-contact manner is embedded in a container that the customer has when entering the store, and an identification number is written in this. Then, the container may be placed at a position where the weighing device can read the information, and the reading may be performed so that the customer can be identified or the customer can be recognized.

K. To switch the display mode, a sensor that detects whether or not a person is near the front of the device is provided to switch to the unloading weight detection mode when it is detected that a card has been inserted. Then, the mode may be switched to the unloading weight mode, or after printing is completed, or when it is detected that the card is removed after the card is ejected, the mode may be switched to the gross weight display mode.

L. If the last update of the weight (zero reset) is performed when it is detected that the card has been inserted (that is, when an operation for identifying the customer has been performed), the zero can be reset immediately before the removal and weighing. It may be performed when the display switching key is operated to switch to the dismounting display mode. It may be performed when a person is detected as in the above k. A key for zero reset may be provided, and when this key is pressed, zero reset may be performed. However, if there is a drop-off, it is necessary to confirm that it was recorded and reset it to zero. The internal count may be stored in the previous weight value register, and the withdrawn amount may be obtained from the difference from the internal count.

M. The display amount of the display may be increased to display the total weight and the removed weight simultaneously. n. In the removal amount display mode, the weight value of the removed amount is displayed in a minus display, for example, "-256" is displayed. Turn on the negative sign (lamp, etc.)
The numerical value indicates the absolute value. Simply indicate that the display value is negative and display the absolute value. Simply display the absolute value. The above is included in the scope of the right of the invention of claim 1. In other words, even in the case of the above, many people judge the magnitude of the numerical value on the display based on the absolute value, and it suffices that the numerical value on the display can be used more safely by displaying the total weight.

O. The purchase data may be recorded by recording all or a part of the product code, weight data and price data, or may be printed on a card or the like. It would be even better if you could check the data.

[0038]

As described above, according to the first aspect of the present invention, it is possible to eliminate inconsistency between a product purchased by a customer and purchase data. In addition, for customers, even if the display value increases even though the load is reduced by the amount removed,
Since the gross weight display means and the unloading amount display means are provided, the unnaturalness can be eliminated by confirming the gross weight value actually placed on the weighing device, and it can be used with confidence. it can. In addition, since the total weight can be confirmed, when a store clerk places a large number of products on the mounting table, it is possible to easily place an appropriate amount of products so as not to overload the weighing device.

According to the second aspect, by using one display device as two display means, the configuration can be simplified and the cost can be reduced.

According to the third and sixth aspects, inconsistency between the product purchased by the customer and the purchase data can be eliminated. Moreover, the weight value can be updated last time without performing any special operation, and the weight value can be prepared for the next take-off weighing.

According to the fourth, fifth and seventh aspects, in addition to the effects of the third and sixth aspects, the weighing value can be set to zero immediately before taking off, and accurate weighing can be performed.

Further, according to the eighth aspect, it is possible to eliminate the mismatch between the product purchased by the customer and the purchase data. In addition, since the last update of the weight is provided with an update key that can be used when recording is performed, it is possible to prevent unauthorized removal of the data to zero.

[Brief description of the drawings]

FIG. 1 is a view showing a layout of a sales floor of a self-service side dish restaurant in which a take-off weighing device according to an embodiment of the present invention is installed and a weighing and selling system is adopted.

FIG. 2 is a perspective view showing the appearance of a take-off weighing device according to an embodiment of the present invention.

FIG. 3 is a block diagram showing an electric circuit configuration of the unloading and weighing device of FIG. 2;

FIG. 4 is a diagram showing a shape and a print example of a shopping card used in the unloading and weighing device of FIG. 2;

FIG. 5 is a diagram showing a display example of a display unit of the unloading and weighing device of FIG. 2;

FIG. 6 is a flowchart showing an outline of the operation of the unloading and weighing device of FIG. 2;

[Explanation of symbols]

 DESCRIPTION OF REFERENCE NUMBERS 1 Prepared food store 2 Entrance 3 Shopping card 4 Containers and trays 5 Weighing goods display space 6 Unloading scale 7 Checkout area 8 Cash register 9 Exit 10 Cooking place 11 Liquid crystal display 12 Mark 13 Product description notation 14 Complete key 15 Switching key 16 Shopping Card Slot 17 Weighing Plate 21 CPU 22 ROM 23 RAM 24 Computer Unit 25 Load Cell 26 A / D Conversion Circuit 27 Unit Price Setting Switch 28 Part Number Setting Switch 30 Printer Unit 32 Buzzer 33 Card Sensor 34 Printing Position Sensor 35 Thermal Head 36 Motor 43 NONPLU barcode (first row) 44 NONPLU barcode (second row) 45 Print position mark 46 Price

Claims (8)

[Claims] An unloading weighing unit for determining a weight of the unloaded product when a large amount of products are previously mounted on the mounting table and a required amount of the product is unloaded from the mounting table; Total weight display means for displaying the total weight of the products placed in the storage area, and a withdrawal amount for displaying the difference between the stored last weight value and the weight value after the required amount of the goods is removed. A take-off weighing device comprising a display means. 2. The unloading and weighing device according to claim 1, wherein the display by the display unit is switched so that the display by the total weight display unit and the display by the unloading amount display unit are combined. 3. A product according to claim 1, wherein said product is provided for each type of a large number of commodities previously mounted on said mounting table, and when a required amount of commodities is removed from said mounting table, the weight of said removed product is determined. A take-out weighing unit in which information is set; and a recording means for recording purchase data based on the product information and the obtained weight for each customer. The last-time weight value is updated at the time of the recording. 4. A product according to claim 1, wherein said product is provided for each type of a large number of commodities previously mounted on said mounting table, and when a required amount of commodities is removed from said mounting table, the weight of said removed product is determined. It is provided with a withdrawal weighing unit in which information is set, and input means for inputting customer identification information, and updating of the last weight value stored to obtain the weight of the withdrawn quantity is performed by inputting the input means. An unloading weighing device characterized by being performed when performed. 5. A product which is provided for each type of a large number of commodities previously mounted on a mounting table, and when a customer removes a required amount of commodities from the mounting table, the weight of the removed product is determined. A take-off weighing unit in which product information is set, recording means for recording purchase data based on the product information and the detected weight for each customer, and detection means for detecting a recording medium recorded by the recording means. A removal weighing device, characterized in that updating of the last weight value stored for obtaining the weight of the removed weight is performed when detection by the detection means is performed. 6. A product according to claim 1, wherein said product is provided for each type of a large number of products previously placed on said mounting table, and when a required amount of said product is removed from said mounting table, the weight of said removed product is determined. It is equipped with a take-off weighing section in which information is set, and a completion key that is operated when the take-off is completed. When the last weight value stored to obtain the weight of the take-off is updated, the completion key is used. An unloading weighing device, which is performed when operated. 7. A product of said product, which is provided for each type of a large number of products previously mounted on the mounting table, and when a required amount of the product is removed from the mounting table, the weight of the removed product is obtained. Equipped with a take-off weighing unit in which information is set, and a sensor that detects the approach of a person, and updates the last weight value stored to obtain the weight of the removed object when the approach of a person is detected. A take-off weighing device characterized in that: 8. A product of said product, which is provided for each type of a large number of products previously mounted on the mounting table, and when a required amount of product is removed from the mounting table, the weight of the removed product is determined. A take-off weighing unit in which information is set, recording means for recording purchase data based on the product information and the obtained weight for each customer, and a weight taken off when it is determined that the recording has been performed. An unloading weighing device, comprising: an update key for updating a previously stored weight value for obtaining.