Product data processing device

Abstract

To provide a commodity data processing device which enables commodities to be sold smoothly.SOLUTION: The commodity data processing device comprises a control unit, display means and an operator identifying a commodity displayed on the display means. When the operator is operated, the control unit differentiates control in accordance with a weighing state, i.e., a state where a commodity, etc., is already placed on a scale and a weight value is detected ("Y" in ST1-2) and a state where a commodity, etc., is not placed on a weighing pan 13 and a weight value is not detected ("N" in ST1-2). In other words, when the operator that identifies a container (commodity for tares) is operated (ST1-9) while the scale is detecting a weight value ("Y" in ST1-2), control is performed assuming that the weight of the container is a tare weight (ST1-10 to 12). Meanwhile, when the operator that identifies a container (commodity for tares) is operated (ST1-3) while the scale is not detecting a weight value ("N" in ST1-2), control is performed assuming that the container is a commodity to sell (ST1-4 to 5).SELECTED DRAWING: Figure 5

Description

[Technical field]

[0001] The present invention relates to a product data processing device that loads a product on a scale, calculates its weight, and sells the product. [Background technology]

[0002] Conventionally, when a product is placed on a scale and its weight is calculated before it is sold, a process called tare subtraction is performed to exclude the tare weight (tare amount). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2004-264219 A Summary of the Invention [Problem to be solved by the invention]

[0004] However, in the past, when the container serving as a container was itself sold as a commodity, it was not possible to smoothly control whether the container was to be treated as a container or as a commodity.

[0005] The present invention has been made in view of the above-mentioned points, and an object of the present invention is to provide a product data processing device that can smoothly sell products. [Means for solving the problem]

[0006] The present invention is a product data processing device that loads products on a scale, calculates their weight, and sells the products, the device having a control unit, a display means that can be operated by an operator, and an operator that specifies the products to be displayed on the display means, the control unit comprising: When the operator is operated while the scale is detecting a weight value, the weight of the product specified by the operator is controlled as a tare weight, and when the operator is operated while the scale is not detecting a weight value, the product specified by the operator is displayed on the display means as product information of the product to be sold. It is characterized by the following. [Brief description of the drawings]

[0007] [Figure 1] FIG. 1 is a perspective view of a weighing device (product data processing device) 1. [Diagram 2] FIG. 2 is a diagram showing an example of a functional block diagram of the weighing device 1. [Diagram 3] FIG. 4 is a diagram showing an example of a product file 60. [Figure 4] FIG. 1 is a block diagram of a weighing system (product data processing system) 1A. [Diagram 5] 1 is an operational flow diagram showing an example of a weighing pricing process executed by the weighing device 1. FIG. [Figure 6] FIG. 13 is a diagram showing an operation screen G1. [Figure 7] FIG. 13 is a diagram showing an operation screen G2. [Figure 8] FIG. 13 shows an operation screen G3. [Figure 9] FIG. 13 shows an operation screen G4. [Figure 10] FIG. 13 shows an operation screen G5. [Figure 11] FIG. 13 shows an operation screen G6. [Figure 12] FIG. 13 shows an operation screen G7. [Figure 13] FIG. 13 shows an operation screen G8. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0008] Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings. Fig. 1 is a perspective view of a product data processing device (hereinafter referred to as "weighing device") 1 according to one embodiment of the present invention. This weighing device 1 is configured to calculate the price of the product after weighing and pricing it if the product is a non-fixed-weight product (a product whose price varies depending on its weight, a weighed product), or after specifying the product and the product quantity if the product is a fixed-price product (a product whose price and weight (content weight) are fixed (fixed-weight product) or a product whose price and quantity (content quantity) are fixed), then calculate the price of the product, settle the account, and issue a receipt for settlement.

[0009] As shown in Fig. 1, the weighing device 1 is configured with a weighing dish 13 installed on the top surface of a main body 11, and a display means (hereinafter referred to as "display operation unit") 15 that can be operated by an operator installed on the front side of the main body 11. A printed matter issuing port 17 is provided at a predetermined position (one corner) on the outer circumferential side wall of the main body 11. A display operation surface 19 and a numeric keypad input unit 21 are provided on the surface of the display operation unit 15.

[0010] 2 is a diagram showing an example of a functional block diagram of the weighing device 1. As shown in the figure, the weighing device 1 includes a CPU (controller) 31 that controls the operation of the weighing device 1, a hard disk (storage) 33 that transfers and stores information stored in a RAM (storage) 37, a ROM (storage) 35 that stores programs executed by the CPU 31, a RAM 37 that stores various information, an operation unit 39 that operates the weighing device 1, a mass detection unit 41 that uses a load cell or the like to weigh the products to be sold by weight placed on the weighing pan 13, a printing unit 43 that prints and issues receipts, labels, etc., a display unit 45 that displays various information, a transmission unit 47 that transmits various information to other devices, a reception unit 49 that receives various information from other devices, and an accounting processing unit 51 that performs settlement processing. Each component is connected to each other via a bus or other communication line.

[0011] The display operation surface 19 of the display operation unit 15 shown in Fig. 1 is configured with a liquid crystal touch panel, and serves as both the operation unit 39 and the display means 45. The numeric keypad input unit 21 shown in Fig. 1 also serves as the operation unit 39. A scale is formed by the weighing dish 13, the load cell, the mass detection unit 41, etc. A drawer (cash storage device) is connected to the accounting processing unit 51.

[0012] FIG. 3 is a diagram showing an example of the product file 60 stored in the RAM 37. As shown in the figure, the product file 60 consists of various information such as the product code (product identification information), product name, measurement category, price, weight, whether or not it is used as a container, etc. Although not shown, the product file 60 further stores various information related to the product, such as best-before / consumption category, best-before / expiry date, raw materials, storage method, storage temperature, nutritional components, food additives, and calorie content. Here, the "measurement category" indicates the category of variable weight (sold by weight) and fixed price (including fixed weight), and the "price" indicates the unit price per unit mass (e.g., 100g) for variable weight products, and the sales price per unit (e.g., 1 piece, 1 pack, etc.) for fixed price products (including fixed price products). The "weight" indicates the weight or content of the fixed price product. The "Container" indicates whether the product is a product that is used as a container by filling it with other products.

[0013] In other words, in stores that have introduced a system in which customers purchase containers to store products and then weigh and sell the products placed in the containers, with the aim of reducing waste of containers (disposable), the containers are sold as products and at the same time, information indicating that they can be used as containers is stored in product file 60 along with the price of the container, so that the containers can be used as containers.

[0014] FIG. 4 is a block diagram of a weighing system (product data processing system) 1A constructed using a plurality of the weighing devices 1. As shown in the figure, the weighing system 1A is configured such that a store controller 100 and a plurality of weighing devices 1 (1-1, 1-2, . . . , 1-n) are connected by a communication line 55, thereby enabling mutual data transmission and reception. The store controller 100 is a computer that controls the entire weighing system 1A, manages various data used by each weighing device 1, stores product data, etc., and distributes them to each device as appropriate. The store controller 100 also receives the transaction data processed by each weighing device 1 after transaction, stores the received transaction data, and performs performance compilation, etc. The multiple weighing devices 1 (1-1, 1-2, . . . , 1-n) are installed, for example, in each section on the top surface of a showcase in a sales area on the same floor. A weighing device 1 may be installed for each type of product sold (for example, in the prepared food section, the fresh fish section, the meat section, etc.), or multiple weighing devices may be installed in one area of ​​a large sales area for the same type of product. The accounting processing unit 51 provided in the weighing device 1 may be installed for multiple weighing devices 1. A POS device (not shown) may be connected to the communication line 55 separately, and various accounting processes (including credit, electronic money, etc.) may be performed by this POS device. Each of the multiple weighing devices 1 (1-1, 1-2,..., 1-n) stores a program that performs the operations shown in Figure 5 below.

[0015] FIG. 5 is an operational flow diagram showing an example of the weighing and pricing process executed by the weighing device 1 (1-1). The process shown in this diagram is realized by the CPU 31 executing a program stored in the ROM 35. Here, specific examples of containers that can be used as weighing containers are explained for (1) cases where they are sold as goods, and (2) cases where they are used as weighing containers. That is, a store that uses this operational flow is a store that sells both products by weight using scales and products without scales, and also a store that allows customers to use the containers that are on sale and purchase products by putting them in the containers.

[0016] 6 is a diagram showing an operation screen G1 displayed on the display operation surface 19 when ordering a product using the weighing device 1. This operation screen G1 displays a registered product display section A1 that displays already registered products together with their prices, an accounting display section A2 that displays the total amount for already registered products, a tare weight display section A3 that displays the tare weight, a selected product display section A4 that displays the selected product, a product weight display section A5 that displays the weight of the weighed product, a product unit price display section A6, a product price display section A7, a product type selection section A8 that selects the type of product from among multiple products, a selectable product display section A9 that displays selectable specific products as operators (buttons), a product registration button (+ button) A10 that registers the selected product, and a tare subtraction button A11 that instructs subtracting the tare weight.

[0017] In the operation screen G1 shown in Figure 6, two products have already been registered, as shown in the registered product display field A1, and accounting information for the two products is displayed in the accounting display field A2.In addition, by pressing the ``Container'' button in the product type selection field A8, the product type is changed to ``Container,'' and various selectable container selection buttons (operators) are displayed in the selection product display field A9.

[0018] [When containers are sold as products] In the state of the operation screen G1 shown in FIG. 6, when a customer orders a container that can be used as a tare (in this example, a "large XX container") as a product, the store clerk touches (presses) the "large XX container" button (operator) in the selection product display field A9 (step 1-3) without performing step 1-1 and without placing the container on the weighing plate 13 ("N" in step 1-2). This causes the CPU 31 to calculate the price of the "large XX container" as a product (step 1-4). At this time, as in the operation screen G2 shown in FIG. 7, the selected container is displayed as a product in the selection product display field A4, the weight of the container "100g" is displayed in the tare weight display field A3, and the unit price of the container "300 yen" is displayed in the product unit price display field A6. It is not necessary to display the container weight in the tare weight display field A3. When the number of units to be sold, "1", is pressed using the numeric keypad input unit 21, the price of the container, "300 yen", is displayed in the product price display field A7. Note that the price, "300 yen", for the number of units to be sold, may be displayed in advance in the product price display field A7 of the operation screen G2 shown in FIG. 7 without pressing the numeric keypad input unit 21. This makes it possible to omit pressing the numeric keypad input unit 21. When multiple units are to be sold, the display in the product price display field A7 may be changed by pressing the number of units to be sold using the numeric keypad input unit 21 or by pressing the "Large XX container" button multiple times.

[0019] Next, when the product registration button A10 is pressed, the selected container is registered (step 1-5), and information about the product "Large XX container" is added to the registered product display field A1 on the left, as shown in the operation screen G3 in FIG. 8, and the billing amount including the price of the product "Large XX container" is displayed in the billing display field A2.

[0020] Next, if another product is to be selected, the process returns to step 1-1 ("N" in step 1-6), but once selection and registration of all products has been completed ("Y" in step 1-6), a settlement button (not shown) is pressed to perform the settlement process (step 1-7), a receipt is issued (step 1-8), and the series of operations is completed. Note that in this example, settlement is performed, but it is also possible not to perform settlement at this stage (step 1-7 is omitted), and to affix the issued receipt with the settlement information printed on it to the product or its packaging, and perform settlement using a POS device installed in another location (the same applies to another example described below).

[0021] In the above example, the selected container is registered by pressing the product registration button A10, but it is also possible to omit pressing the product registration button A10 and register the selected container by simply pressing the ``Large XX container'' button (operator) in the selection product display field A9 and the number of units to be sold.

[0022] [When using a container as a tare] On the other hand, in the operation screen G1 shown in FIG. 6, when a customer places an order for a container brought as a container (in this example, a "large XX container") to be filled with another product (in this example, the non-fixed weight product "pistachios"), the store clerk selects "pistachios" as the product (step 1-1). The selection method is to press the "Nuts" button in the product type selection field A8 shown in FIG. 6, which displays nuts products in the selection product display field A9 (see FIG. 9), and then press the displayed "pistachios" button. Note that this product designation may be made after step 1-2 described below (step 1-1A).

[0023] Next, when the products packed in the container are placed on the weighing tray 13, the CPU 31 detects the weight (total weight) ("Y" in step 1-2). The operation screen G4 at this time is shown in Fig. 9. As shown in the figure, at this time, the specified product "pistachio" is displayed in the selected product display field A4, the weighed product weight (including tare weight) "300g" is displayed in the tare weight display field A3, and the unit price of the product "180 yen" is displayed in the product unit price display field A6.

[0024] Next, by pressing the "Container" button in the product type selection field A8, container products are displayed in the selection product display field A9 as shown in the operation screen G5 in Fig. 10, and the "Large XX container" button, which is the container storing the product "pistachio", is pressed, followed by pressing the tare button A11 (step 1-9). This causes the CPU 31 to subtract the tare weight value (tare weight) "100g" from the measured weight value "300g" and calculate the tare weight (step 1-10). Note that pressing the tare button A11 may be omitted, and the tare weight may be subtracted and the tare weight calculated simply by pressing the "Large XX container" button.

[0025] At the same time, the price of the product "pistachio" is calculated using the tare weight value (step 1-11). At this time, as shown in Fig. 10, the tare weight value "100g" is displayed in the tare weight display field A3, the tare weight value "200g" is displayed in the product weight display field A5, and the product price "360 yen" based on the tare weight value is displayed in the product price display field A7.

[0026] Next, when the product registration button A10 is pressed, the selected product "Pistachio" is registered (step 1-12), and although not shown, the product "Pistachio 200g 360 yen" is added and displayed in the registered product display field A1 on the left, and the billing amount including the price of the product "Pistachio" is displayed in the billing display field A2.

[0027] Next, if another product is to be selected, the process returns to step 1-1 ("N" in step 1-6). However, once all products have been selected and registered ("Y" in step 1-6), the payment button (not shown) is pressed to perform the payment process (step 1-7), a receipt is issued (step 1-8), and the series of operations is completed, as described above.

[0028] In the example shown in FIG. 5, the product is selected before or after the container filled with the product is placed on the weighing plate 13 and its weight is detected, that is, before the product is selected for tare. However, the product may be selected after the product is selected for tare, that is, after step 1-9. In this case, the product for tare is selected after the weight value is detected in step 1-2, and the state at this time is shown in the operation screen G6 of FIG. 11. As shown in the operation screen G6, in this case, the product to be purchased has not been selected, so the selected product display field A4, the product unit price display field A6, and the product price display field A7 are all blank, while the tare weight display field A3 displays the tare weight value "100g", and the product weight display field A5 displays the tare weight value "200g" obtained by subtracting the tare weight value from the actual value. If the product "pistachio" is selected by the same operation as above, the tare price is calculated as above, and the operation screen G5 shown in FIG. 10 is displayed (step 1-11). The following operations are the same as those described above.

[0029] In the above example, the product type selection field A8 is operated to select a container product after selecting a product, but the operation of switching product types using the product type selection field A8 is cumbersome, takes time, and may lead to operational errors. Therefore, the following other operating methods (1) and (2) may be used.

[0030] Other operation methods (1) "Nuts" in the product type selection field A8 is pressed, and from the products displayed in the product display field A9 for selection, for example, "pistachios" is pressed and selected. At this time, "nuts" is selected in the product type selection field A8, and specific products related to "nuts" are displayed in the product display field A9 for selection. Next, when pistachios in a container are placed on the weighing tray 13, the display in the product type selection field A8 automatically changes from "nuts" to "container," and at the same time, the display in the product display field A9 for selection automatically changes from specific products related to "nuts" to specific products related to "container."

[0031] Other operation methods (2) A product in a container, for example, "pistachios," is placed on the weighing dish 13. Next, "Nuts" in the product type selection field A8 is pressed, and from the specific products displayed in the product display field A9 for selection, for example, "pistachios" is pressed and selected. By selecting the product "pistachios," the display in the product type selection field A8 automatically changes from "nuts" to "containers," and at the same time, the display in the product display field A9 for selection automatically changes from the specific product related to "nuts" to the specific product related to "containers."

[0032] According to the above-mentioned other operation methods (1) and (2), when a product without registered tare weight information is selected and placed on the weighing pan (scale) 13 (the order can be reversed), the product automatically moves to the product type selection field A8 with a tare weight function, making the operation very easy. However, in the case of a product in which the weight of the container in which the product is packed is set as the tare weight in addition to product information such as the weight of the product as product data in the product file 60, that is, a product with pre-existing tare weight information (for example, "mixed berries" as described below), there is no need to automatically move the product type selection field A8 to "container", so the product does not move automatically. In addition, in the above-mentioned other operation methods (1) and (2), the product automatically moves to the product type selection field A8 with a tare weight function, but instead, the "container" button in the product type selection field A8, i.e., the "tare" button, may be displayed in a way that is different from other buttons (for example, by flashing or changing the color), making it possible to press the "container" button without mistake.

[0033] As described above, the weighing device 1 has a CPU (control unit) 31, a display operation surface (display means) 19 that can be operated by an operator, and various buttons (operators) for identifying products displayed on the display operation surface 19 (operation screens G1 to G8). When the various buttons for identifying a product are operated, the CPU 31 controls differently depending on the state of the weighing pan (scale) 13, i.e., a state in which a product or the like has already been placed on the weighing pan 13 and its weight value has been detected ("Y" in step 1-2) and a state in which no product or the like has been placed on the weighing pan 13 and its weight value has not been detected ("N" in step 1-2). In other words, when a button identifying a container (tare product) is operated while the weighing plate 13 is detecting a weight value ("Y" in step 1-2), the weight of the container is controlled as a tare weight, whereas when a button identifying a container (tare product) is operated while the weighing plate 13 is not detecting a weight value ("N" in step 1-2), the container is controlled as product information of the product being sold (e.g., displayed on the display operation surface 19).

[0034] In this way, different controls are performed even when the same button (operator) is operated depending on the state of the weighing pan 13, making it possible to smoothly perform a variety of controls (different functions) with a small number of buttons (operators). In other words, the number of buttons (operators) can be reduced, making it possible to use the display area of ​​the display operation surface 19 more widely.

[0035] Furthermore, in the above example, when the button for identifying a container (tare product) is operated (step 1-3) while the weighing plate 13 has not detected a weight value ("N" in step 1-2), an operation may be added to place the container on the weighing plate 13 and determine whether or not the measured weight value of the container matches the registered weight value, to confirm that the container is definitely the identified container, before calculating and registering the price of the container. In this case, a message requesting that the container be placed on the weighing plate 13 may be displayed on the display operation surface 19.

[0036] Also, if a button identifying a container (tare product) is operated while the weighing plate 13 is detecting a weight value ("Y" in step 1-2), the weight of the container is controlled as the tare weight, but if the detected weight value is the same as the weight value of the container, the container may be controlled as a product to be sold. In this case, if the calculated tare weight is "0g" in step 1-10, the process proceeds to step 1-4, and the container is treated as a product to be sold.

[0037] In the above example, the weight value of the container is registered in advance in the product file 60. However, in some cases, the weight value of the container may not be registered in advance in the product file 60. For example, there are cases where a customer wants to fill a container (which may be a container sold in the store or not, but whose weight value is not registered in the product file 60) with products and weigh it. In such a case, the container is weighed separately in advance, the weighing result is stored in advance in a writing means such as an IC chip or IC tag, and the writing means with the stored weight is attached to the container.

[0038] Specifically, for example, (1) the container is placed on the weighing pan 13 and weighed. (2) Next, a tare weight write button (not shown) is pressed (or if the container is a container in the preset key, such as a "large XX container," the "large XX container" button in the product display field A9 for selection is pressed), thereby writing the weight value (tare weight) information into an IC chip attached to the container or an IC tag attached to a label affixed to the container. Note that if the container is a product being sold and the weight value is registered in product file 60, the product's identification information may be registered in the IC chip or IC tag instead of the weight value. This weighing device 1 is equipped with a write unit that writes information such as tare weight into an IC chip or the like, and a read unit that reads the information from the IC chip or the like.

[0039] As a result, the next time the container containing the desired product is placed on the weighing pan 13, the reading unit of the weighing device 1 reads out the information such as the container weight written in the writing means attached to the container as the tare weight, etc., and performs tare subtraction. In the case of such a container, it becomes possible to proceed with weighing by tare subtraction without pressing the button (operator) for selecting the tare product (steps 1-9 can be omitted). This makes it possible to easily use containers prepared by the customer as containers for tare subtraction.

[0040] Next, in the case where the weight of the container in which the product is packed is set as the tare weight in addition to product information such as the product weight as product data in the product file 60, for example, the control is performed as follows. That is, when purchasing a 100g product "Mixed Berries" packed in a 50g container, if the product button for "Mixed Berries" is pressed without placing the product on the weighing plate 13, the product unit price "600 yen / 100g" is displayed in the product unit price display field A6, the tare weight "50g" is displayed in the tare weight display field A3, and the weight "-50g" is displayed in the product weight display field A5 (as the product has not been weighed, the tare weight is displayed as a negative value). In this case, the product unit price and tare weight are merely displayed for confirmation of the product information, and the product registration is completed by pressing the product registration button A10. On the other hand, when the "Mixed Berry" product button is pressed while the product is placed on the weighing plate 13, the product unit price "600 yen / 100g" is displayed in the product unit price display field A6, the tare weight "50g" in the tare weight display field A3, the tare weight "100g" in the product weight display field A5, and the product price "600 yen" in the product price display field A7, as shown in operation screen G8 in Fig. 13. In this case, product registration is completed by pressing the tare weight button A11 or the product registration button A10. In this example as well, the control differs depending on whether the product is placed on the weighing plate 13 or not.

[0041] Overview of the embodiment [Technical field] The present invention relates to a product data processing device that loads a product on a scale, calculates its weight, and sells the product. [Background technology] Conventionally, when a product is placed on a scale and its weight is calculated for sale, a process called tare subtraction is carried out to exclude the tare weight. In recent years, from the viewpoint of reducing waste of containers (disposable use), it has become common for customers to purchase their own containers to store products in, and then weigh and sell the products placed in the containers. [Prior art document] [Patent documents] [Patent Document 1] JP 2004-264219 A

[0042] [Summary of the Invention] [Problem to be solved by the invention] However, in the past, when the container serving as a container was itself sold as a commodity, it was not possible to smoothly control whether the container was to be treated as a container or as a commodity. For example, when selling a container that can be used as a weighing container as a product, it is necessary to press a preset key (operator) displayed as one of the containers for sale.On the other hand, when using the container as a weighing container, it is necessary to press a preset key that indicates the use of the container as a weighing container, which makes the operation complicated and requires the placement of two preset keys for indicating the same container within the display area of ​​the display means, preventing effective use of the limited display area. The present invention has been made in view of the above-mentioned points, and an object of the present invention is to provide a product data processing device that can smoothly sell products.

[0043] [Means for solving the problem] The present invention is a product data processing device that loads a product on a scale, determines its weight, and sells the product, and has a control unit, a display means that can be operated by an operator, and an operator that identifies the product to be displayed on the display means, and is characterized in that when the operator is operated, the control unit differs in control depending on the state of the scale. The state of the scale refers to, for example, a state in which a product or the like has already been placed on the scale and its weight value is being detected, and a state in which no product or the like has been placed on the scale and its weight value is not being detected. According to the present invention, different controls are performed depending on the state of the scale even when the same operator is operated, so that diverse controls can be smoothly performed with a small number of operators.

[0044] Furthermore, in addition to the above characteristics, the present invention is characterized in that, when the operator is operated while the scale is detecting a weight value, the control unit controls the weight of the product specified by the operator as a tare weight, and, when the operator is operated while the scale is not detecting a weight value, the control unit causes the display means to display the product specified by the operator as product information of the product to be sold. For example, if the product is a container that can be used as a tare to store other products for sale, when the product to be sold is stored in the container and placed on the scale, and the operator indicating the container is pressed, the weight value of the container is controlled as the tare weight. In this case, for example, the weight value detected by the scale minus the weight value of the container is used as the weight value of the product to be sold to calculate the sales price, etc. On the other hand, when the operator presses the control button for the container without placing the container on the scale, the container is controlled as a commodity. In this case, the container is sold without using the scale. According to the present invention, it is possible to smoothly perform different controls using the same operator depending on whether or not the scale detects a weight value.

[0045] Furthermore, in addition to the above characteristics, the present invention is characterized in that when the operator is operated while the scale is detecting a weight value, the control unit controls the weight of the product specified by the operator as a tare weight, and when the operator is operated while the scale is not detecting a weight value, the control unit registers the product specified by the operator as a product to be sold as is. For example, if the product is a container that can be used as a tare to store other products for sale, when the product to be sold is stored in the container and placed on the scale, and the operator indicating the container is pressed, the weight value of the container is controlled as the tare weight. In this case, for example, the weight value detected by the scale minus the weight value of the container is used as the weight value of the product to be sold to calculate the sales price, etc. On the other hand, if the operator presses the button for the container without placing the container on the scale, the container is registered as a commodity. In this case, the scale is not used, and the operator simply presses the button for the container, allowing smooth commodity registration without the need to operate a separate operator for registration.

[0046] In addition to the above-mentioned features, the present invention is further characterized in that it further comprises a writing means capable of writing the weight value of the product, and the weight value of the product measured at the time of sale is capable of being written as a tare weight in the writing means. Examples of the writing means include an IC chip and an IC tag. For example, such writing means is attached to a container, and the weight value of the container measured when the container is sold is written as a tare weight. The next time another product is put into the container and weighed, the weight value of the container can be read from the writing means and the weight value of the container can be subtracted from the tare weight. According to the present invention, a container can be easily used as a container capable of being tared, without having to store the weight value of the container in advance.

[0047] In addition to the above-mentioned characteristics, the present invention is characterized in that, when the weight value detected by the scale matches the weight value of the product specified by the operator, the control unit registers the product as a product to be sold. According to the present invention, even a product (container) that is controlled for tare use can be considered a product for sale if only that product is weighed.

[0048] In addition, a program for realizing the functions of the above-mentioned commodity data processing device (weighing device) 1 may be recorded on a computer-readable recording medium, and the program recorded on the recording medium may be read into the commodity data processing device 1 as a computer system and executed to perform the above-mentioned processing as the commodity data processing device 1. Here, "reading the program recorded on the recording medium into a computer system and executing it" includes installing the program into the computer system. The "computer system" here includes hardware such as an OS and peripheral devices. The "computer system" may also include a plurality of computer devices connected via a network including the Internet, a WAN, a LAN, a dedicated line, and other communication lines. The "computer-readable recording medium" refers to a portable medium such as a flexible disk, an optical magnetic disk, a ROM, a CD-ROM, and a storage device such as a hard disk built into a computer system. In this way, the recording medium storing the program may be a non-transient recording medium such as a CD-ROM. The recording medium also includes a recording medium provided inside or outside the computer system that can be accessed from a distribution server in order to distribute the program. The code of the program stored in the recording medium of the distribution server may be different from the code of the program in a format executable by a terminal device. That is, the format in which the program is stored in the distribution server does not matter as long as the program can be downloaded from the distribution server and installed in a form executable by the terminal device. The program may be divided into multiple parts, each of which may be downloaded at a different time and then combined on the terminal device, or each of the divided programs may be distributed by a different distribution server. Furthermore, the term "computer-readable recording medium" includes a storage medium that holds a program for a certain period of time, such as a volatile memory (RAM) inside a computer system that is a server or client when a program is transmitted over a network. The program may also be one that realizes part of the above-mentioned functions.Furthermore, the above-mentioned functions may be realized in combination with a program already recorded in the computer system, that is, a so-called differential file (differential program).

[0049] Although the embodiment of the present invention has been described above, the present invention is not limited to the above embodiment, and various modifications are possible within the scope of the claims and the technical ideas described in the specification and drawings. Any configuration not directly described in the specification and drawings is within the scope of the technical ideas of the present invention as long as it achieves the functions and effects of the present invention. For example, the shape and structure of the weighing device can be modified in various ways. For example, the weighing device may be configured to separate the weighing dish and other parts into a separate device, and the two may be connected by a communication line or the like. In addition, the embodiments described above and shown in each figure can be combined with each other as long as there is no contradiction in their purpose and configuration. In addition, even if the contents of the description in the above description and each figure are part of each, they can each be an independent embodiment, and the embodiment of the present invention is not limited to one embodiment combining the above description and each figure. [Explanation of symbols]

[0050] 1...weighing device (product data processing device), 11...main body, 13...weighing pan (scale), 15...display operation section (display means), 17...printing material issuing port, 19...display operation surface (display means), 21...ten-key input section, 31...CPU (control section), 33...hard disk (storage section), 35...ROM (storage section), 37...RAM (storage section), 39...operation section, 41...mass detection section (scale), 43...printing means, 45...display means, 47...transmission means, 49...reception means, 51...accounting processing section, 60...product file , 1A...weighing system (product data processing system), 100...store controller, 1-1, 1-2,..., 1-n...weighing device, 55...communication line, G1~G8...operation screen, A1...registered product display column, A2...accounting display column, A3...tare weight display column, A4...selected product display column, A5...product weight display column, A6...product unit price display column, A7...product price display column, A8...product type selection column, A9...selectable product display column, A10...product registration button (+ button), A11...tare button.

Claims

1. A product data processing device that loads a product on a scale, calculates its weight, and sells the product, A control unit; A display means operable by an operator; an operator for specifying a product to be displayed on the display means; When the operator is operated while the scale is detecting a weight value, the control unit controls the weight of the product specified by the operator as a tare weight, A product data processing device characterized in that, when the operator is operated while the scale is not detecting a weight value, the product specified by the operator is displayed on the display means as product information of the product for sale.

2. A product data processing device that loads a product on a scale, calculates its weight, and sells the product, A control unit; A display means operable by an operator; an operator for specifying a product to be displayed on the display means; When the operator is operated while the scale is detecting a weight value, the control unit controls the weight of the product specified by the operator as a tare weight, A product data processing device characterized in that, when the operator is operated while the scale is not detecting a weight value, the product specified by the operator is registered as a product to be sold.

3. The weight value of the product may be written by a writing unit.

3. The product data processing device according to claim 1, wherein the writing means is capable of writing a weight value of the product measured at the time of sale of the product as a tare weight.

4. The product data processing device according to claim 1, 2 or 3, characterized in that when the weight value detected by the scale matches the weight value of the product specified by the operator, the control unit registers the product as a product to be sold.

5. A computer as a product data processing device that loads a product on a scale, calculates the weight of the product, and sells the product, Control unit, A display means operable by an operator; functioning as an operator for specifying a product to be displayed on the display means; The control unit further comprises: When the operator is operated while the scale is detecting a weight value, the weight of the product specified by the operator is controlled as a tare weight; On the other hand, when the operator is operated while the scale is not detecting a weight value, the product specified by the operator is displayed on the display means as product information of the product to be sold. A program characterized by:

6. A computer as a product data processing device that loads a product on a scale, calculates the weight of the product, and sells the product, Control unit, A display means operable by an operator; An operator for specifying a product to be displayed on the display means; Function as a The control unit further comprises: When the operator is operated while the scale is detecting a weight value, the weight of the product specified by the operator is controlled as a tare weight; On the other hand, when the operator operates the scale without detecting a weight value, the product specified by the operator is registered as a product to be sold. A program characterized by:

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