JP2010025687A - Balance device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a balance device for recognizing whether measured weight of an article to be measured is within an allowable weight range using one article file even when an article to be picked has a different indication quantity. <P>SOLUTION: This balance device includes an article file for storing article information about the article, such as information for identifying the article, unit weight, or relative error, determines the allowable weight range from the target quantity, unit weight, and relative error of the article to be measured, and counts the number of the article to be measured when the measured weight of then article to be measured is within the allowable weight range. The balance device includes a relative error setting means for setting a plurality of relative errors as article information in the article file, and a relative error selecting means for selecting an applied relative error from the plurality of relative errors of the article file based on the target quantity of the article to be measured. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a weighing apparatus, and in particular, divides the weight of a plurality of articles to be weighed (commodities) placed on a weighing pan by the weight per article to be weighed, and digitally displays the number of the articles to be weighed on a display unit. The present invention relates to a scale device displayed in a formula.

  Order data requesting delivery is transmitted from each store to a distribution center that delivers goods such as merchandise. The distribution delivery center creates picking instruction data from this order data and prints it as a picking instruction or transmits the data to a terminal device such as a terminal or a portable terminal installed in a picking cart, and sends the data to a display device. Display and communicate to pickers. Based on the printed picking instructions or the picking instructions specified on the display device, the person in charge of picking picks the necessary items (products) from the display shelf in the required quantity (number) and mounts them on the picking cart. The container is stored in a container or the like, transferred to a delivery location, and delivered to each store that has received an order from the delivery location.

  In order to prevent delivery of the wrong product or wrong quantity (number), the person in charge of picking said product or quantity (number) picked in the picking instructions in the above picking ) Is being checked to see if they match. A scale device is used for this confirmation work.

  In the program mode of the scale device, a weighing mode and a setting mode are provided. The weighing mode is provided with a confirmation program for confirming whether the picking quantity (number) instructed in the picking instruction sheet matches the quantity of the picked article. The setting mode is provided with a program for setting data required in advance when using the weighing mode, such as a product file. In addition, the product file stores a shelf number, a product name, a manufacturer name, a capacity, a product code, a list price, a unit weight (average weight per product (article)), an error rate, and the like.

  The weight of the same product is not the same, but it is a little different depending on the individual, but the unit weight (average weight per product) averaged for the different weights is used. The unit weight can be obtained by placing a number of the same products as the products whose unit weights are to be set in advance on the weighing pan of the weighing device, entering the number of the weights into the weighing device, and calculating the weight by the number divided by the number. Find the unit weight. In order to input 10.0% or the like for the error rate, an item having two positive digits and one decimal digit is provided. This error rate is used to determine whether the error weight of the product is within a preset range. For this error rate, the operator inputs a value of, for example, 5%, 10%, etc. based on empirical rules.

  The error rate is important when the weight of the product mounted on the weighing pan of the scale device is divided by the unit weight during the execution of the above confirmation program, and there is almost no error and there is almost no difference between 1 g. It becomes. The weighing apparatus obtains an allowable upper limit weight and an allowable lower limit weight by using the following calculation formula, and determines whether or not the mounted weight is within the allowable range.

When the error rate value to be set in advance is 5%, the unit weight value is 100 g, the number of picking instructions is 10, and the weight of the product to be confirmed is 1010 g, the upper and lower allowable weight limits are as follows: become.
Number of picking instructions 10 x unit weight 100g = standard weight 1000g
Unit weight 100g / 100% x Preset error rate 5% = Allowable error weight 5g
Standard weight 1000g + allowable error weight 5g = allowable weight upper limit weight 1005g
Reference weight 1000g-Allowable error weight 5g = Allowable weight lower limit weight 995g

The weighing device determines whether the weight of the product to be confirmed, 1010 g, falls within the allowable range with the allowable weight lower limit weight 995 g to the allowable weight upper limit weight 1005 g as the allowable range. In this case, since the weight of the weighed product is 1010 g, it exceeds the allowable range. Therefore, it is determined that the weighed product is not the picking instruction number, and an error display indicating that the error has been exceeded is displayed. To inform the operator.
JP-A-53-138773 JP 2002-98576 A

  If the above error message appears, the product may be different from the order data (product) or the picked quantity (number) may not be correct. Check (number) again. If the product is different, the picking operation for the product is redone. If the types of products match but the quantities are different, the quantity is increased or decreased and the confirmation program is executed again.

  The product picking instructions differ every time an order is received, for example, 10 pieces, 20 pieces, and 30 pieces. The error rate must be a value that does not cause an error for any order quantity. For example, assuming that a product with a unit weight of 100 g has a variation of +1 g per product, if there are 30 products, the variation is 30 g. When this variation is to be absorbed with an error rate, in the case of at least 30 pieces, the range of 2970 g to 3030 g needs to be an allowable weight, and the setting error rate needs to be 30%.

  However, this means that an error rate of 30% is used even for picking confirmation of 10 products, so the allowable capacity of 10 products is 970g to 1030g, and the product whose unit weight is different from the ordered product. There is a problem that an error does not occur in the confirmation program even if picking is performed.

  The present invention has been made in view of the above points, and whether the weighed weight of an article to be weighed is within the allowable weight range using one product file even if the number of articles to be picked is different. It is an object of the present invention to provide a scale device that can confirm whether or not.

  In order to solve the above-mentioned problems, the present invention comprises a product file for storing article information relating to an article such as information for identifying the article, unit weight, error rate, etc., and the target quantity, unit weight and error of the object to be weighed The error in setting multiple error rates in the product file as article information in a weighing device that calculates the allowable weight range from the rate and the measured weight of the object is within the allowable weight range. It is characterized by comprising rate setting means and error rate selection means for selecting an error rate to be applied from a plurality of error rates of the product file according to the target quantity of the object to be weighed.

  In addition, the present invention is characterized in that the weighing apparatus includes display means for displaying a result when the measured weight of the target quantity to be weighed is determined to be outside the allowable weight range.

  Further, the present invention is characterized in that, in the scale device, the product file includes an item indicating the quantity of objects to be weighed corresponding to each error rate of a plurality of error rates.

  According to the first aspect of the present invention, error rate setting means for setting a plurality of error rates in the product file as article information, and an error rate applied from the plurality of error rates of the product file according to the target quantity of the object to be weighed Error rate selection means to select the error rate, even if the indicated quantity of the article (product) to be picked is different, select the error rate according to the indicated quantity and set the allowable weight range according to the indicated quantity It is possible to check whether the product or quantity (number) instructed in the picking instruction sheet matches. This means that the allowable weight range can be narrowed while maintaining the reality, which makes it possible to detect mistakes in the quantity loading, and also mounts products that are close to the weight of the product indicated in the picking instructions. The discovery of cases and their accuracy can also be increased.

  According to the second aspect of the present invention, since it is provided with the display means for displaying the result when it is judged that the measured weight of the target quantity to be weighed is out of the allowable weight range, the operator's quantity is counted. Mistakes can be reduced.

  According to the invention described in claim 3, since the item file includes an item indicating the number of objects to be weighed corresponding to each of the plurality of error rates, an appropriate error rate can be obtained even when the number of picking instructions is different. Select and respond.

  Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a diagram showing a block configuration of a scale device according to the present invention. As shown in the figure, the scale device 1 includes a CPU 11, a ROM 12, a RAM 13, a weighing pan 14a, a load cell 14b, an A / D conversion circuit 15, a display drive circuit 16, a display unit 17, a key input unit 18, a communication I / F 19, A built-in printer 20 and an alarm sound generator 21 are provided.

  The CPU 11 is a central processing unit that controls the operation of the scale device 1 by executing a program stored in the ROM 12, the ROM 12 is a read-only memory that stores various programs provided in the scale device 1, and the RAM 13 stores various data. It is an occasional write / read only memory for temporary storage.

  Although not shown, the load cell 14b is a load sensor that includes a metal (for example, high-strength aluminum) strain generating body and has a strain gauge attached to a strain generating portion of the strain generating body. One end of the strain generating body is fixed, and the other end is a movable end. When a load is applied to the movable end, the strain generating portion is deformed, and the strain gauge is deformed along with the deformation. The resistance value changes. The change in the resistance value is extracted as an electrical signal. The weighing pan 14a is a pan for placing an article to be weighed, and a load generated by placing the article on the pan acts on the movable end of the strain generating body of the load cell 14b.

  The A / D conversion circuit 15 is an analog / digital conversion circuit that converts an analog voltage signal input from the load cell 14b into the number of pulses commanded to the voltage value. The converted pulse signal is sent to the CPU 11, the number of pulses is measured by the CPU 11, converted into a load value, and placed on the weighing pan 14a so that the weight of the article can be measured.

  The display drive circuit 16 is a circuit that converts an input signal from the CPU 11 into a signal for displaying on the display unit 17. The display unit 17 is a menu for operating the scale device 1, an instruction weight value read from the work instruction data, an article name, a message to the operator (operator), a text / number / For example, a liquid crystal display for displaying image data is provided. Display data is input from the CPU 11 via the display drive circuit 16.

  The key input unit 18 includes, for example, a touch panel for an operator to specify an article to be weighed or to operate the scale device 1, and is configured integrally with the display of the display unit 17. On the touch panel, numeric keys of numbers 0 to 9, a decimal point key, a key for selecting a weight unit, up / down / left / right cross keys, a determination (return) key, a menu selection key, and the like are arranged according to the operation contents at the time of operation. It has become so. The communication I / F (interface) 19 is an interface module for connecting to a management server or the like via a LAN to transmit / receive various data (see FIG. 2).

  The built-in printer 20 is, for example, a thermal transfer printer that prints data in a work history data file in a scene where the measurement result is managed. The alarm sound generating unit 21 is an alarm means for generating, for example, a buzzer sound when prompting re-weighing because the weight value of the weighed article (product) exceeds a predetermined allowable value, or when an operation key is pressed incorrectly.

  FIG. 2 is a block diagram showing a configuration of a distribution system that connects a distribution distribution center that performs picking operations using the scale device according to the present invention and each store. A plurality of display shelves 31-1, 31-2, 31-3,... Each display shelf is numbered with a barcode. In FIG. 2, A1-1 to A1-3 are displayed on the first level of the display shelf 31-1, A2-1 to A2-3 are displayed on the second level, and A3-1 to A3-3 are displayed on the third level. B1-1 to B1-3 on the first level of the shelf 31-2, B2-1 to B2-3 on the second level, B3-1 to B3-3 on the third level, and the display shelf 31-3 Bar code such as C1-1 to C1-3 on the first level, C2-1 to C2-3 on the second level, C3-1 to C3-3 on the third level, etc. ing. In addition, although not shown in the figure, the article (product) to be displayed is also numbered with a barcode.

  In addition, a management server 33 is installed in the physical distribution center 30, and an order information file 35, a picking instruction file 36, a product file 37, and a printing device 38 are connected to the management server 33. Further, a plurality of picking carts 40-1, 40-2, 40-3,... Are connected to the management server 33 via a LAN (for example, a wireless LAN) 41. Each picking cart 40 is provided with a scale device 1 and a scanner 43 for reading a barcode. Although not shown, the product file 37 includes data such as shelf number, product name, manufacturer name, capacity, product code, list price, unit weight, error rate, etc., for each product (article). It is stored (see FIG. 5).

  A personal computer (PC) terminal 51 of each store 50-1, 50-2, 50-3... Is connected to the management server 33 of the distribution delivery center 30 via the Internet or an intranet 53. The management server 33 of the distribution delivery center 30 can receive order data from the stores 50-1, 50-2, 50-3,.

  In the above distribution system, order data from each of the stores 50-1, 50-2, 50-3,... Is sent from the personal computer (PC) terminal 51 to the management server 33 via the Internet or the intranet 53, and managed. The server 33 stores the order data in the order information file 35 and also stores various data of articles (goods) displayed on the display shelves 31-1, 31-2, 31-3,. The picking instruction data for instructing the picking of the article is created with reference to the product file 37, the picking instruction data is stored in the picking instruction file 36, and the picking instruction 101 and the delivery note 102 are printed and issued from the printing device 38. To do.

  FIG. 3 shows an example of the picking instruction. As shown in the drawing, “NO.” 101a, “barcode” 101b, “delivery destination” 101c, “delivery date” 101d, and “instruction data” 101e of the picking instruction are printed on the picking instruction. The instruction data 101e includes “shelf number”, “product name”, “maker name”, “capacity”, “product code”, “quantity (number)”, and the like.

  An operator (a person in charge of picking work) of each picking cart 40 receives the picking instruction 101 issued from the printing device 38, reads the barcode 101b of the picking instruction 101 with the scanner 43, and reads the picking instruction 101. Identify and transmit to the management server 33. Then, the picking cart 40 is moved to the display shelf on which the product indicated in the picking instruction 101 is displayed, the barcode 101b indicating the number is read by the scanner 43, and the product instructed to be picked is picked. The product code attached to the product is read by the scanner 43 and the read data is transmitted to the management server 33. A product (article) picked from the display shelf is put in a container mounted on the weighing pan 14 a of the weighing device 1 of each picking cart 40.

  In addition, the person in charge of the picking work should not pick up the goods or quantities (numbers) picked in the picking instruction in the picking work so that the wrong goods or the wrong quantity (numbers) will not be delivered. Work to confirm whether it matches the quantity (number).

  As will be described later in detail, the weighing apparatus 1 determines whether the weight of each picked product is within the allowable weight range, and if it is determined to be within the allowable weight range, the picking quantity (number) is determined to be correct. . When the picking of all the products instructed in the identified picking instruction 101 is completed, the operator transfers the picking cart 40 to a delivery place (not shown) of the distribution center 30 where the goods are stored in the container in which the products are stored. An invoice 102 issued from the printer 38 is attached and placed at the delivery location. Then, the container is mounted on the delivery car 54 at a time in time for delivery, and delivered to the delivery destination store 50.

  The program mode of the weighing apparatus 1 includes a weighing mode and a setting mode. In the weighing mode, there is a confirmation program for confirming whether the picking instruction quantity of the product instructed by the picking instruction is equal to the quantity of the actually picked product. The setting mode includes a program for setting data required in advance when using the weighing mode such as a product file.

  Hereinafter, the confirmation program of the scale device 1 will be described with reference to the flowchart shown in FIG. Before executing the confirmation program, it is necessary to preset the product file 37 and the like in the setting mode in advance. Next, the picking instruction sheet 101 is issued by the management server 33 as described above, and according to the picking instruction sheet 101, the picked goods are picked from the display shelf 31 by the designated quantity. Then use this verification program.

  First, in step ST11, the NO. Enter. That is, the NO. Is read by the scanner 43 of the picking cart 40, the data of the picking instruction sheet 101 is transmitted to the management server 33, and the data is read by the management server 33.

  Next, in step ST12, the data of the picking instruction sheet 101 is displayed on the display unit 17 of the weighing apparatus 1.

  Next, in step ST13, the picked product NO. Enter. That is, one picked product is extracted and the barcode 101b of the product is read by the scanner 43, thereby inputting the picked product NO.

  Next, in step ST14, it is confirmed whether or not the product read by the scanner 43 exists in the picking instruction sheet 101. If it does not exist, an error is displayed on the display unit 17 in step ST15. In ST16, an error rate corresponding to the number of picking instructions specified by the picking instruction sheet 101 is selected from the product file (see FIG. 5).

Next, in step ST17, an allowable weight for the number of picking instructions is obtained as follows. When the product name to be picked is mayonnaise A shown in the product file of FIG. 5 and the number of picking instructions is 10,
Number of picking instructions 10 x unit weight 100g = standard weight 1000g
Unit weight 100g / 100% x Preset error rate 5% = Allowable error weight 5g
Standard weight 1000g + allowable error weight 5g = allowable upper limit weight 1005g
Standard weight 1000g-Allowable error weight 5g = Allowable lower limit weight 995g

  Next, in step ST18, the remaining total number of the same goods picked is put into a container mounted on the weighing pan 14a of the weighing apparatus 1.

  There are two methods for determining the quantity (number) of articles to be weighed mounted on the weighing pan 14a of the weighing apparatus 1 (items to be weighed housed in a container mounted on the weighing pan 14a). . One is whether the weight of the article to be weighed is within the range from the allowable lower limit weight to the allowable upper limit weight determined by the unit weight and the error rate. To do. The other is when the weight of the article to be weighed is outside the allowable upper limit weight range from the allowable lower limit weight determined by the unit weight and error rate. 50% weight + 1 g is counted as “1”, the value obtained by adding the unit weight to that value is counted as “2”, and the value obtained by adding the unit weight to that value is further counted as “3”. Thereafter, “4”, “5”, and “6” are counted by this method. For example, in the case where the unit weight of an article to be weighed (product) is 100 g, 51 g to 150 g is “1”, 151 g to 250 g is “2”, and 251 to 350 g is “3”. This displays the reference quantity of the articles to be weighed mounted on the weighing pan 14a of the weighing apparatus 1.

  If the weight is stabilized in step ST19, it is determined whether the weight of the product put in the container in step ST20 is within the allowable weight range calculated in step ST17. If it is outside the range, an error is displayed on the display unit 17 in step ST21.

  In step ST20, if the weight of the product placed in the container is within the allowable weight range, the product name, quantity, etc. of the product contained in the container are displayed on the display unit 17 in step ST22. In step ST23, when the display content is confirmed, a confirmation key is pressed.

  Next, in step ST24, an item for checking “confirmed” for each product in the data of the picking instruction sheet 101 is marked. Subsequently, in step ST25, it is determined whether or not an unconfirmed product exists in the data of the picking instruction sheet 101. If there is an unconfirmed product, the process returns to step ST12 and the process is repeated.

  If there is no unconfirmed product in step ST25, in step ST26, a picking end key is displayed on the display unit 17. In step ST27, pressing the picking end key ends the processing of the confirmation program.

  In the present embodiment, the example in which the weighing apparatus 1 is mounted on the picking cart 40 is shown, but the weighing apparatus 1 may be installed at a fixed position. In addition, the picking instruction 101 is printed by the printing device 38 disposed in the physical distribution center 30, but when the scale device 1 is mounted on the picking cart 40, the picking instruction 101 shown in FIG. May be directly displayed on the display unit 17 of the scale device 1.

  In addition, although the error rate item has a positive number of 2 digits and a decimal number of 1 digit, the number of digits is not influenced by the effect of the present invention. Even if the number of decimals is increased by 2 or 3 digits, the number of items can be increased. Good. A positive two-digit item may be one digit.

  Further, in the conceptual diagram of the distribution center 30 shown in FIG. 2, the management server 33 and the scale device 1 are connected by the LAN 41, but a wireless LAN may be used. Further, although the printing device 38 is installed in the management server 33, the printing device 38 may be installed on the network and may not be installed directly in the management server 33.

  Although the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and various modifications can be made within the scope of the technical idea described in the claims and the specification and drawings. Is possible.

It is a figure which shows the block structure of the scale apparatus which concerns on this invention. It is a block diagram which shows the structural example of the physical distribution system which performs a picking operation | work using the scale apparatus which concerns on this invention. It is a figure which shows an example of a picking instruction. It is a figure which shows the processing flow of the confirmation program of the balance apparatus which concerns on this invention. It is a figure which shows an example of a goods file.

Explanation of symbols

1 Weighing device 11 CPU
12 ROM
13 RAM
14a Weighing pan 14b Load cell 15 A / D conversion circuit 16 Display drive circuit 17 Display unit 18 Key input unit 19 Communication I / F
20 Built-in Printer 21 Alarm Sound Generation Unit 30 Distribution Distribution Center 31 Display Shelf 33 Management Server 35 Order Information File 36 Picking Instruction File 37 Product File 38 Printing Device 40 Picking Cart 41 LAN
43 Scanner 50 Store 51 Personal Computer (PC) Terminal 53 Internet or Intranet 54 Delivery Car 101 Picking Instruction 102 Invoice

Claims (3)

A product file that stores product information related to the product, such as information for identifying the product, unit weight, error rate, etc., and obtains the allowable weight range from the target quantity, unit weight, and error rate of the product to be weighed. In the weighing device for counting the number of objects to be weighed when the weighing weight of is within the allowable weight range,
Error rate setting means for setting a plurality of error rates in the product file as the article information;
An error rate selection means for selecting an error rate to be applied from a plurality of error rates of the product file according to a target quantity of the object to be weighed. The scale device according to claim 1,
A weighing apparatus, comprising: a display means for displaying a result when the measured weight of the target quantity to be weighed is determined to be outside the allowable weight range. The scale device according to claim 1 or 2,
The scale device characterized in that the product file includes an item indicating the quantity of the objects to be weighed corresponding to each error rate of the plurality of error rates.

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