JPH0554263A - Article sales data processor - Google Patents

Abstract

PURPOSE:To prevent an article from being changed during its conveyance after self-scanning by weighing the article at plural places by a weighing means during the conveying operation. CONSTITUTION:For a self-scanning system where a customer scans an article code and conveys the article to be purchased to a payment place by a conveyor, a 1st conveyor 3 constitutes a conveying means which conveys the article whose article code is inputted from a fixed scanner 2 as an article code input part by a constant distance and a scale part 5 constitutes the weighting means which weighs the article in the conveyance operation by the conveying means at plural places. In this case, when the difference between a weighed value and the article unit weight is within a permissible range at the fixed scanner 2, it is decided that the article whose bar code is read by the fixed scanner 2 is mounted on the 1st conveyor 3 and 1st and 2nd conveyors 3 and 4 are put in rotating operation to start the conveyance. Then the article is weighed plural times during the conveyance and the weighed values are compared with the article unit weight.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a product sales data processing device having a self-scanning function.

[0002]

2. Description of the Related Art As a conventional product sales data processing device having a self-scanning function, a storage unit for storing product files for storing product information such as a unit price and a unit weight of a corresponding product corresponding to a product code assigned to each product. The scanner device for inputting the product code (bar code) and the scale-equipped conveyor for transferring the product, the product code of which is input by the scanner device, are connected to the scanner device for inputting the product code from the scanner device. In response, the corresponding product information is read from the product file and the weighing value of the product placed on the weighing conveyor is read. If the measured value is almost equal to the unit weight in the product information, the sales data of the corresponding product is read. Some have been designed to be registered. (See JP-A-61-46591, etc.)

In this conventional device, the customer sequentially reads the bar code attached to the product to be purchased by the scanner device and places it on the conveyor with scale. Then,
When the measured value by the weighing conveyor almost matches the unit weight of the purchased product, the sales data of the product is registered,
After that, the goods are transferred to the checkout place by the weighing conveyor. At the checkout place, the clerk confirms from the display contents on the display and the printout on the receipt whether the registered product matches the transferred product, and if they match, the customer receives payment. ..

[0004]

However, in the above-mentioned conventional product sales data processing device having the self-scanning function, the products which are placed on the weighing conveyor and judged to be valid by the weight check and registered are transferred by the conveyor. For example, if a customer commits a fraud in which the same type is replaced with a large one, there is a fear that the fraud may be overlooked if the check of the clerk at the accounting location is insufficient.

[0006] Such fraud can be prevented by covering the transfer path of the weighing conveyor with an enclosure, but there is a problem in that the equipment becomes large in scale, a space for installing the enclosure is required, and the cost becomes high.

Therefore, the present invention intends to provide a product sales data processing device capable of reliably preventing fraudulent replacement of a product after self-scanning during transportation without increasing the scale of equipment and improving the practicality of the self-scanning system. It is what

[0007]

According to the present invention, there is provided a product information storage section for storing product information such as a unit price and a unit weight of a corresponding product corresponding to a product code assigned to each product, and a product for inputting the product code. A code input unit, a product information reading unit that reads product information corresponding to the product code input via the input unit from the product information storage unit, and a product to which the product code is input from the product code input unit at a constant distance. Transferring means for transferring, weighing means for weighing the weight of the product being transported by the transferring means at a plurality of points, and every time the weight of the product is weighed by the weighing means, the measured value and the product information reading means read it out. Weight comparison means for comparing the unit weight of the product information, registration determination means for determining whether or not the product can be registered based on a plurality of comparison results by the comparison means, and this determination means A merchandise sales data processing apparatus and a commodity registration processing means for registering processes sales data of the product based on the product information read by the commodity information reading means and more product registration is permitted.

[0008]

According to the present invention having such a structure, when the product for which the product code is input by the product code input section is moved by the transfer means, the product is weighed at a plurality of points during the transfer operation. Each time,
The measured value is compared with the unit weight set in the product information storage unit as the product information of the product. Then, it is determined whether or not the product can be registered based on the results of comparisons made a plurality of times. Therefore, if a fraudulent replacement of products occurs during the transfer operation, the comparison results after replacement will not match and registration will not be permitted.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1A is a front view showing the outline of the entire embodiment apparatus, and FIG. 1B is a top view showing the main part thereof. In the figure, 1 is an electronic cash register as a product sales data processing device main body, 2 is a stationary scanner as a product code input unit for reading a product code attached to each product as a bar code, and 3 is the stationary device. The first conveyer 4 for transferring the goods from the point A near the installation position of the scanner 2 to the point B is the second conveyor 4 for transferring the products from the point B above to the point C near the installation position of the electronic cash register 1
, 5 is a weighing unit for weighing the weight of the goods placed on the first conveyor 3, and 6 is an optical type for detecting the passage of the goods transferred by the first conveyor 3 near the point B. It is a passage sensor.

The commodity code signal read by the stationary scanner 2, the weighing data signal in the weighing section 5, and the output signal of the passage sensor 6 are supplied to the electronic cash register 1, respectively. Further, the electronic cash register 1 controls the operation and stop of the first and second conveyors 3 and 4.

Here, the first conveyor 3 constitutes a transfer means for transferring a product for which a product code is input from the stationary scanner 2 as a product code input part for a predetermined distance, and the scale part 5 is operated by this transfer means. A weighing unit configured to weigh the weight of the product during the transfer operation at a plurality of points.

FIG. 2 is a block diagram showing the configuration of the electronic cash register. In the figure, a CPU (Central Processing Unit) 11 has an arithmetic circuit, a memory control circuit, etc. built therein, performs various arithmetic processes based on input data, and is connected to a ROM (Read Only) via a bus line 12. The memory 13 and the RAM (random access memory) 14 are controlled.

Further, a scanner interface 15 to which the product code signal from the stationary scanner 2 is input, a scale interface 16 to which a weighing data signal from the scale unit 5 is input, a numeral key, a closing key, a cancel key, A keyboard controller 17 that controls a keyboard 17a provided with a discount key, a display controller 18 that controls driving of a display 18a that displays registered product sales data and total data of one customer, and receipt printing And a printer controller 19 for controlling the drive of the printer 19a for issuing and issuing, an input port 20 to which the output signal of the passage sensor 6 is input, a drawer opening device 21 for opening a drawer for storing cash, and the first. Output drive signals to the drawer drive circuit 22 for driving the first and second conveyors 3 and 4, respectively. Output port 23, the connected to the other via a bus line 12 CPU 11 that.

Fixed data such as program data for the CPU 11 to control each unit and character generator data such as print characters and display characters are stored in advance in the ROM 13.

In the RAM 14, as shown in FIG.
Product information such as product name, unit price and unit weight is set in advance corresponding to the product code of each product, and a sales accumulation area for accumulating the sales points and sales amount of the registered products In addition to the product file (product information storage unit) 31, which is composed of various memory areas such as a product information memory 32, a weight value memory 33, and a coincidence counter 34.

Therefore, the CPU 11 is programmed so as to execute the control shown in FIG. That is, as ST (step) 1, the reading operation (scanning) of the product code is performed in the stationary scanner 2.
When a product code signal is input through the scanner interface 15, the counter value n of the coincidence counter 34 is initialized to "0" in ST2, and the product file 31 is searched for with the product code input in ST3. Product information (product code, product name, unit price, unit weight, etc.) having the same code is read out and stored in the product information memory 32.

Next, as ST4, the scale interface 1
The weighing data signal input to 6 is read, and the weighing value in the weighing unit 5 calculated based on the data signal is stored in the weighing value memory 33. However, when the measured value is "0", the measured data signal is read again, and the process waits until a measured value other than "0" is obtained.

Next, at ST5, the measured value in the measured value memory 33 is compared with the unit weight in the product information in the product information memory 32 (comparing means). Then, if the difference between the measured value and the unit weight is within a predetermined allowable range, it is determined that the product whose product code is read by the stationary scanner 2 is placed on the first conveyor 3, and as ST6. The drive signal is output to the conveyor drive circuit 22 to output the first and second signals.
The conveyors 3 and 4 are rotated.

Then, in ST7, the weighing data signal input to the weighing interface 16 is read again, and the weighing value calculated by the weighing unit 5 based on the data signal is stored in the weighing value memory 33. Then, in ST8, the weight value in the weight value memory 33 is compared with the unit weight in the product information in the product information memory 32 (comparing means), and if it is within the allowable range, in ST9 the count value n of the coincidence counter 34. Is incremented by "+1". If it is out of the allowable range, the coincidence counter is not counted up.

After that, in ST10, the output signal of the passage balancer 6 input to the input port 20 is checked, and the processes after ST7 are repeatedly executed until the passage of the product is detected. That is, the scale interface 16
The weighing value in the weighing unit 5 is obtained from the weighing data signal input to the unit, the weighing value is compared with the unit weight (comparing means), and when the value is within the allowable range, the count value n of the coincidence counter 34 is "+1". Just count up.

When the passage of the product is detected in ST10, it is checked in ST11 whether the count value n of the coincidence counter 34 has reached a predetermined number. Then, when the number of products has reached the predetermined number, the product has not been replaced during the period in which the product is being transferred on the first conveyor 3 and it is determined that the product can be registered. In this case, the product is being replaced and it is determined that the product cannot be registered. (Registration determination means)

If the registration is possible, the sales data of the corresponding product is registered based on the product information in the product information memory 32 in ST12. Specifically, the sales number is "1" and the sales amount is a unit price, and the sales number and the sales amount are added to the sales number area and the sales amount area corresponding to the corresponding product code in the product file 31. Further, the display 18a displays the product name, unit price, and the like.
(Merchandise registration processing means)

After that, in ST13, when the supply of the drive signal to the conveyor drive circuit 22 is stopped and the operation of the first and second conveyors 3 and 4 is stopped, the next scanning or tightening key of the keyboard 17a is pressed. It will wait for key input such as.

On the other hand, if registration is not possible, in ST14, the supply of the drive signal to the conveyor drive circuit 22 is stopped, the operation of the first and second conveyors 3 and 4 is forcibly stopped, and an error occurs. Performs error processing such as display and alarm sound generation.

If the difference between the measured value and the unit weight is outside the predetermined allowable range in ST5, the products other than the product whose product code is read by the stationary scanner 2 are the first conveyor 3 The above error processing is performed when it is determined that the file is placed on top.

In this embodiment having such a configuration, the customer himself / herself registers the sale of the purchased product. That is, the customer who has finished shopping in the store goes to the point A where the stationary scanner 2 is installed, reads the bar code (product code) attached to the purchased product by the stationary scanner 2, and then The product is placed on the first conveyor 3.

Then, in response to the barcode reading operation in the stationary scanner 2, the product file 31 is sent.
Is searched, and the product information including the unit weight of the product is read and stored in the product information memory 32. Also, the first
The weight of the product placed on the conveyor 3 is weighed by the weighing unit 5, and the weighed value is stored in the weighed value memory 32. When the difference between the measured value and the unit weight is within the allowable range, it is determined that the product whose barcode is read by the stationary scanner 2 is placed on the first conveyor 3,
The first and second conveyors 3 and 4 rotate to start the transfer of products. Up to this point, it is similar to the conventional device of this type.

In the present embodiment, the articles placed on the first conveyor 3 are weighed multiple times during this transfer operation, and each time the articles are weighed, the difference is within the allowable range. Is checked. Then, the coincidence counter 34 counts the number of times determined to be within the allowable range.

When the passage sensor 6 detects that the product has passed the point B, the coincidence counter 34
It is determined whether or not the count value n has reached a preset number. That is, in the present embodiment, since the weighing is repeated during the transfer operation of the product, the weighing value may shift out of the allowable range due to the disturbance even for the same product, and this point is taken into consideration.

When the predetermined value has been reached (for example, when the weighing operation is within the allowable range of 5 times or more is 3 times or more), the product is transferred on the first conveyor 3. It is considered that the products have not been replaced during the period,
The sales data of the product is registered.

On the other hand, when the predetermined number is not reached (for example, when the number of weighing operations is within the allowable range of 5 times or less than 2 times), the products are transferred on the first conveyor 3. It is considered that the goods have been replaced during the certain period, and an error occurs, and the first and second conveyors 3 and 4 are forcibly stopped.

Therefore, when the customer commits an illegal act such as replacing a product being transferred on the first conveyor 3 with a large product of the same product, the illegal act can be surely detected. As a result, the operator who operates the electronic cash register 1 only needs to monitor the products transferred on the second conveyor 4, and the burden on the operator can be reduced. In addition, since it is possible to reliably prevent the replacement of the goods during the transfer of the first conveyor 3, there is no need to cover the transfer path of the first conveyor 3 with an enclosure, and the equipment can be downsized and the cost can be reduced. , The practicality of the self-scanning system can be improved.

In the above embodiment, the merchandise transferred on the first conveyor 3 is repeatedly weighed.
The effect of the present invention can be sufficiently obtained by performing the weight check once at least after the conveyor operation in ST6 of FIG.

[0035]

As described above in detail, according to the present invention, it is possible to surely prevent fraudulent replacement of goods after self-scanning during transportation without increasing the scale of equipment and improve the practicality of the self-scanning system. It is possible to provide a merchandise sales data processing device.

[Brief description of drawings]

FIG. 1 is a schematic diagram showing an overall configuration and a main part of an embodiment of the present invention.

FIG. 2 is a block diagram showing a control circuit of the electronic cash register in the embodiment.

FIG. 3 is a conceptual diagram showing a main memory formed in a RAM of the electronic cash register.

FIG. 4 is a flowchart showing main control executed by a CPU of the electronic cash register.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Electronic cash register, 2 ... Stationary type scanner (product code input part), 3 ... 1st conveyor (transfer means), 4 ... 2nd conveyor, 5 ... Scale part (measurement means), 6
... Passage sensor, 31 ... Product file (product information storage unit).

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁵ Identification code Internal reference number FI Technical display location G07F 9/00 110 Z 8818-3E G07G 1/12 341 A 8921-3E // B65G 43/08 C 9245-3F 47/49 8010-3F

Claims (1)

[Claims] 1. A product information storage unit for storing product information such as a unit price and a unit weight of a corresponding product corresponding to a product code assigned to each product; a product code input unit for inputting the product code; Product information reading means for reading, from the product information storage part, product information corresponding to the product code input via the unit, and transfer means for transferring the product, the product code of which is input from the product code input unit, by a predetermined distance. A weighing means for weighing the weight of a product being transported by the transport means at a plurality of points; and a weighing value and product information read by the product information reading means each time the weight of the product is weighed by the weighing means. A weight comparing means for comparing with a unit weight, a registration determining means for determining whether or not the product can be registered based on a plurality of comparison results by the comparing means, and this determining means A commodity registration processing means for registering processes sales data of the product based on the product information read by the commodity information reading means more product registration is granted,
A product sales data processing device comprising: