JP6509988B2 - Combination weighing device - Google Patents

Description

  The present invention relates to a combination weighing device.

  The combination weighing device has a plurality of weighing trays (weighing pans), and weighs the articles placed on the weighing trays, and a plurality of combined weights of them become within the target range. An item is selected and displayed or discharged. The articles are, for example, fish, shellfish, fruits, vegetables such as tomatoes, peppers, eggplants and the like. The combination weighing device is an automatic type that automatically performs both of the steps of placing a plurality of articles on the weighing tray and the steps of discharging and collecting the selected plurality of articles from above the weighing tray; There are a semi-automatic type in which the former process is performed manually and the latter process is automatically performed, and a manual type in which both processes are manually performed. Although these methods have their respective advantages, the hand-operated type makes it possible to simultaneously carry out the visual inspection of the article, etc. in addition to the compactness of the combination weighing device, and to prevent the article from being damaged. Handling can be performed.

  In addition, among the combination weighing devices, it is known that items that remain long are preferentially selected because freshness tends to decrease if the items stay long on the weighing tray. ing. For example, Patent Document 1 discloses a combination weighing device that preferentially selects long staying items, and displays the items not selected a certain number of times in a different display method independently of the selected items. ing.

Japanese Patent Application Laid-Open No. 2-165019

  However, in the combination weighing device disclosed in Patent Document 1, the item which is not selected a certain number of times and the selected item may be displayed almost simultaneously, and the process of discharging the item from above the measuring tray is complicated for the operator. And mistakes are easy to happen.

  On the other hand, when many articles are roughly the same size or the target weight range is wide to some extent, etc., there are exceptional articles that are significantly different in size from other articles and can not be combined with other articles. Usually, there are many cases.

  The present invention has been made in view of such circumstances, and the object thereof is a manual operation, which can prevent articles from remaining on the weighing tray for a long time, and discharges the articles from above the weighing tray. An object of the present invention is to provide a combination weighing device in which the process is not complicated for workers.

In order to achieve the above object, the combined weighing device according to claim 1 has a plurality of weighing devices which have a weighing tray and which weighs the articles on the weighing tray, and for each of the plurality of weighing devices. And a selection start indicator for starting the weighing of the weighing instrument, at least the set value and the tolerance value of the total weight of the combination. An input device for determining an input, a display device for displaying at least the setting value and the allowable value, and an item placed on the weighing tray of the plurality of weighing devices, which is initial when the item is renewed storing metric number of a value, if the measurement start switch is turned on, the plurality of each of the article storing single weight is weighing result causes metered meter, the metering number most often the It is possible to select a total weight which is the combination of the single weight in the weighing device and the single weight in the other weighing devices within the range defined by the set value and the allowable value and which is closest to the set value The trial is performed using an iterative process, and when the estimated total weight in the range defined by the set value and the allowable value exists, the indication of selection success is displayed on the plurality of selection indicators, the set value and the allowable value. It is characterized by comprising: a weighing controller which controls to display a selection failure on the selection indicator corresponding to the weighing device having the largest number of weighings when the estimated total weight in the range defined by the value does not exist I assume.

  The combination weighing device according to claim 2 is the combination weighing device according to claim 1, wherein the weighing controller stores at least the set value and the allowable value in a control data storage unit, in the plurality of weighing devices. The control data storage unit includes a measurement data table for storing the number of measurements and the single weight, and a rearrangement measurement data table generated by rearranging the measurement data table in descending order of the number of measurements. The order of the rearrangement metric data table corresponds in order from the bottom, and a temporary selection pattern in which 2 is added for each repetitive process is stored.

  The combination weighing device according to claim 3 is the combination weighing device according to claim 1 or 2, wherein the weighing tray is colored for each of the weighing devices, and the display device is the one for each of the weighing devices. A graphic that is substantially the same color as the weighing tray and indicates the weighing scale is displayed.

  According to the combination weighing device of the present invention, it is possible to prevent the articles from staying on the weighing tray for a long time while the process of discharging the articles from above the weighing tray becomes complicated for the operator. It becomes possible to suppress that.

It is a block diagram showing composition of a combination weighing device concerning an embodiment of the present invention. It is a top view showing the outline appearance of a plurality of measuring instruments and a plurality of selection indicators of the combination measuring device of the same as above. It is a figure which shows the display of the display device of the combination weighing apparatus same as the above with an exemplary numerical value. It is a block diagram which shows the weighing controller of a combination weighing device same as the above. The data which the control data storage part of the data storage part of the combination weighing device same as the above shows are stored, and (a) is a block diagram, (b) is a figure of an example of a numerical value. It is a figure which shows the measurement data table of a combination weighing device same as the above, and a rearrangement measurement data table with an example numerical value. It is a flowchart of operation | movement of a combination weighing device same as the above. It is a figure which shows the operation | movement of the repetition process of a combination weighing device same as the above with an example numerical value.

Hereinafter, modes for carrying out the present invention will be described. As shown in FIG. 1, the combination weighing device 1 according to the embodiment of the present invention includes a plurality of weighing devices 2 ₁ to 2 ₁₀ , a plurality of selection indicators 3 _{1 to} 3 _10, and a weighing start switch 4. , Input device 5, display device 6, and weighing controller 7. The combination weighing device 1 is a manual type.

Each of the weighing devices 2 _{1 to} 2 ₁₀ has a weighing tray 2a as shown in FIG. 2, and weighs the articles on the weighing tray 2a. In this embodiment, the number of measuring instruments is 10 in total of 2 vertical and 5 horizontal, but the number of vertical and horizontal horizontal and horizontal total can be freely changed unless handling is difficult for the operator . Further, the shape and size of the weighing tray 2a, and the distance between the weighing trays 2a and 2a can be appropriately changed according to the item to be measured. In addition, the weighing tray 2a can be colored in each weighing device.

Each of the measuring instruments 2 _{1 to} 2 ₁₀ sends the measurement result, that is, data of the measurement value (hereinafter, single weight) to the measurement controller 7.

The selection indicators 3 _{1 to} 3 ₁₀ are provided for each of the plurality of weighing devices 2 ₁ to 2 ₁₀ . The selection indicators 3 _{1 to} 3 ₁₀ are controlled by the weighing controller 7. Each of the selection indicators 3 _{1 to} 3 ₁₀ can be constituted by a plurality (six in FIG. 2) or one LED 3 a. The LEDs 3a can emit multiple colors. Each of the selected display 3 ₁ to 3 ₁₀ is capable of display of the selected failure and display of the selected success. For example, when each of the selection indicators 3 _{1 to} 3 ₁₀ is configured by a plurality of multi-color light emission capable LEDs 3 a, the indication of successful selection is the weighing indicator 2 ₁ selected from the selection indicators 3 _{1 to} 3 _10. in those corresponding to ~ 2 ₁₀ will light as red repeat it go moved from left to right, the specific color lights unchanged in those corresponding to the meter 2 ₁ to 2 ₁₀ unselected You can keep it going. In addition, as the display of selection failure, as described later, one of the selection indicators 3 _{1 to} 3 ₁₀ corresponding to the meter with the largest number of times of measurement can be turned off. The display of selection success and the display of selection failure can have various aspects. The display of selection success and the display of selection failure end when the weighing start switch 4 described below is pressed.

Measurement start switch 4 is used to start the metering of the meter 2 ₁ to 2 _10, but are not particularly limited, it is possible to use a foot switch. The foot switch can start weighing immediately after the operator discharges the item and places a new alternative on the weighing tray 2a. For example, when the foot switch is pressed, the weighing start switch 4 is turned on, and the on signal is input to the weighing controller 7.

  The input device 5 is at least input to set the setting value and the tolerance value of the total weight of the combination. The set value is the lower limit of the combined weight of the combination and is the most desirable weight. The set value is usually given to the consumer when the combined article is manually discharged from the combination weighing device 1 and packed in a bag or the like. On the other hand, the sum of the set value and the tolerance value is the upper limit value of the total weight of the combination. The allowance value is determined by the person who sells the article. The input device 5 sends data (numerical data, command data, etc.) corresponding to the input to the weighing controller 7. The input device 5 is a remote controller, and by providing a remote control receiver to the weighing controller 7, data can be transmitted to the weighing controller 7 wirelessly.

  The display device 6 is controlled by the weighing controller 7. The display device 6 is, for example, an LCD display or the like. It is also possible to integrate the display device 6 and the input device 5 described above. The display device 6 displays at least the set value and the allowable value described above. For example, when the set value is 300 g and the allowable value is 70 g, as shown in FIG. 3, 300 is displayed as the set value at the upper right of the screen, and the allowable value is displayed as 70.

In addition, the display device 6 displays the weighing value corresponding to each of the plurality of weighing devices 2 ₁ to 2 ₁₀ or displays the selection success corresponding to the display of the selection indicators 3 _{1 to} 3 ₁₀ It is possible to display a selection failure. For example, as shown in FIG. 3, the lower half of the screen, meter number in the meter 2 ₁ to 2 ₁₀ figure showing a measuring instrument in accordance with the arrangement of the (rectangular in this embodiment) (1 to 10 And a figure imitating an LED on a figure showing a weighing scale, and a single weight (in the figure, 96, 63, 52, 70, 48, 85, 75, 107, 96, 76) can be displayed. In addition, the indication of selection success is displayed as red moving from left to right and repeating in the figure imitating the LEDs corresponding to the selected weighing instruments 2 ₁ to _10, and the weighing instruments 2 ₁ not selected. in figure the LED imitating corresponding to ~ 2 ₁₀ can as a particular color is continuously displayed without change. Moreover, the display of selection failure can be made to disappear the thing corresponding to the measuring device with the largest number of times of measurement. Note that the display on the screen can be made in various modes, including the display of selection success and the display of selection failure.

When the weighing tray 2a is colored for each of a plurality of weighing devices 2 ₁ to 2 ₁₀ , a figure (in the embodiment, a rectangle) or the like indicating the weighing devices is displayed on the weighing tray 2a of each of the weighing devices 2 ₁ to 2 ₁₀ And substantially the same color. Thereby, the correspondence between the display on the display device 6 and each of the plurality of weighing devices 2 ₁ to 2 ₁₀ can be clarified, and the operator's mistake can be suppressed.

  As shown in FIG. 4, the weighing controller 7 includes a CPU 70, a main storage unit 71, an auxiliary storage unit 72, an interface unit 73, and the like as hardware. The main storage unit 71 includes a program storage unit 71a that stores a program and a data storage unit 71b that stores data. For the main storage unit 71, volatile memory such as DRAM is usually used. The auxiliary storage unit 72 stores a part of the programs and data sent to and stored in the main storage unit 71 when the power is turned on, and uses a nonvolatile storage device such as an SSD.

  The data storage unit 71b has a control data storage unit 71ba, a measurement data table 71bb, and a rearrangement measurement data table 71bc (see FIG. 4).

  As shown in FIG. 5A, the control data storage unit 71ba stores a setting value, an allowable value, and the like. In the present embodiment, the control data storage unit 71 ba stores the temporary selection pattern, the estimated total weight, the optimum candidate total weight, and the optimum candidate pattern, in addition to the setting value and the allowance. FIG. 5B exemplifies the control data storage unit 71 ba in the process 3 described later. The left side of the figure is the initial value, and the right side is the final value.

As shown on the left side of FIG. 6, the weighing data table 71bb arranges the plurality of weighing instruments 2 ₁ to 2 ₁₀ in numerical order, and stores the number of times of weighing and the single weight. The number of times of weighing by the weighing scale is the number of times of weighing for each item placed on the weighing tray 2a, and becomes the initial value (1) when the item is renewed. In the example illustrated on the left side of FIG. 6, the number of weighing times is 2, 3, ₁ , 3, _4, 2, 2, _{1, 1, 1 in} the order of the weighing devices 2 ₁ to 2 ₁₀ , and single weight (unit is g) 96, 63, 52, 70, 48, 85, 75, 107, 96, 76;

As shown on the right side of FIG. 6, the sorting measurement data table 71bc is for sorting and generating the measurement data table 71bb in descending order of the number of times of measurement. In the example illustrated on the right side of FIG. 6, the weighing devices 2 ₅ , 2 ₂ , 2 ₄ , 2 ₁ , 2 ₆ , 2 ₇ , 2 ₃ , 2 ₃ , 2 ₈ , 2 ₉ , and 2 ₁₀ are rearranged in this order. In addition, when the number of times of measurement is the same, in the present embodiment, it is assumed that the smaller the number of the meter is the larger number of times of measurement (the priority is higher), but it is not limited thereto.

  The temporary selection pattern of the control data storage unit 71ba corresponds to the order of the rearrangement measurement data table 71bc in order from the bottom of the bit. That is, in detail, the least significant bit of the temporary selection pattern corresponds to the measuring device having the largest number of times of measurement in the rearrangement measurement data table 71 bc, and the second lowest bit of the temporary selection pattern is rearranged to the measurement data table The measuring instrument with the second largest number of weighing times of 71 bc corresponds. The same applies to the third and subsequent lowermost temporary selection patterns. If the bit value is 1, then the corresponding meter is tentatively selected.

The interface unit 73 inputs / outputs data or signals between the plurality of weighing devices 2 ₁ to 2 ₁₀ , the plurality of selection indicators 3 _{1 to} 3 ₁₀ , the weighing start switch 4, the input device 5 and the display device 6. Is the part that

The weighing controller 7 performs each process described below using the data storage unit 71 b and the interface unit 73 based on the program stored in the program storage unit 71 a. That is, as shown in FIG. 7, when the weighing start switch 4 is turned on, the weighing controller 7 detects it (process S1), and starts weighing of each item to the plurality of weighing devices 2 ₁ to 2 ₁₀ To make it (the first half of the process S2) The values (single weights) measured by the plurality of measuring instruments 2 _{1 to} 2 ₁₀ are stored in the measuring data table 71bb (the second half of the process S2).

Next, the weighing controller 7 sets the estimated total weight, which is the combination of the single weight of the weighing device with the largest number of weighing times and the single weight of the other weighing devices, within the range defined by the set value and the allowable value. An iterative process is used to try to select a value close to the value (process S3). Here, as a matter of course, those closest to the set value within the range defined by the set value and the allowable value include the same as the set value. Then, weighing controller 7, the display of selected successful at a plurality of selected indicator 3 ₁ to 3 ₁₀ When estimated total weight of the range defined by the allowable value and the setting value is present the (process 4), set When there is no estimated total weight in the range defined by the value and the allowable value, control is performed to display a selection failure (process 5) on the selection indicator corresponding to the meter having the largest number of times of weighing.

  This process S3 can be performed in detail as follows. That is, first, the measurement data table 71bb is rearranged in descending order of the number of times of measurement, and the rearrangement measurement data table 71bc is generated (processing S301).

  Then, the provisional selection pattern and the optimum candidate total weight are initialized (processing S302). The initial value of the temporary selection pattern is 1 (0000000001 in binary expression). The initial value of the optimum candidate total weight is set to a value (999 in this embodiment) which exceeds the value which can be assumed.

  In the repeated processing (processing S303 to S309), a weighing scale corresponding to the temporary selection pattern is temporarily selected, and the estimated total weight of the article is obtained (processing S303). Next, in step S304, it is determined whether the estimated total weight is equal to or more than the set value. If it is equal to or more than the set value, the process proceeds to step S305. If not, the process jumps to step S308. In step S305, it is determined whether the estimated total weight is equal to or less than the value obtained by adding the tolerance to the set value. If the value is equal to or less than the value obtained by adding the tolerance to the set value, the process proceeds to step S306, and the value obtained by adding the tolerance to the set value If not, the process jumps to step S308. In step S306, it is determined whether the estimated total weight is smaller than the optimum candidate total weight. If smaller, the process proceeds to step S307. If not, the process jumps to step S308. In processing S307, the optimum candidate total weight is replaced to obtain a value of estimated total weight, and the value of the optimum candidate pattern is replaced to be a value of a temporary selection pattern. In the next process S308, 2 is added to the temporary selection pattern. In the next processing S309, if the temporary selection pattern does not exceed 1023 (111111111 in binary expression), the processing jumps to processing S303 to start the next repetition processing, and when it exceeds, all the combinations are finished, so repetition is performed. After the process, the process proceeds to step S310. In step S310, it is determined whether the optimum candidate total weight remains at the initial value, and if it has changed from the initial value, it passes through step S311 and proceeds to step S4 of displaying selection success, and if it has not changed, it displays selection failure. It moves to the processing S5 which is done. In process S311, the number of times of measurement in the measurement data table is updated corresponding to the optimum candidate pattern. That is, in the process S311, the number of times of weighing of the weighing instrument which has entered the optimum candidate is set to the initial value, that is, 1 and the number of times of weighing of the weighing instrument which has not entered the optimum candidate is increased.

For example, in this repetitive process (processes S303 to S309), using 300 for the set value and 70 for the allowable value, and using the numerical values of the rearrangement measurement data table 71bc shown on the right side of FIG. It will be. That is, in the first repeated processing, since the temporary selection pattern is 1, only the weighing device ₂₅ having the largest number of weighings is temporarily selected. The estimated total weight is determined to be 48 (process 303). In the next process S304, since the estimated total weight 48 is not 300 or more of the set value, the process jumps to the process S308. In process S308, the provisional selection pattern is three. In processing S309, since the temporary selection pattern does not exceed 1023, the process jumps to processing S303 to start the second repeated processing. In the second iteration, the meter 2 ₅ and the measuring instrument 2 ₂ provisionally selected. The estimated total weight is calculated to be 111 (process 303). In the next processing S304, since the estimated total weight 111 is not 300 or more of the set value, the processing jumps to processing S308. In processing S308, the provisional selection pattern is five. In processing S309, since the temporary selection pattern does not exceed 1023, the processing jumps to processing S303 to start the third repetitive processing. Similarly, the third to fifteenth repetitive processes are performed.

In the sixteenth repetitive processing, the weighing units 2 ₅ , 2 ₂ , 2 ₄ , 2 ₁ and 2 ₆ are temporarily selected. The estimated total weight is calculated to be 362 (process 303). In the next process S304, since the estimated total weight 362 is 300 or more of the set value, the process proceeds to process S305. In the process S305, since the estimated total weight 362 is equal to or less than 370 which is the sum of the set value 300 and the allowable value 70, the process proceeds to the process S306. In the process S306, since the estimated total weight 362 is smaller than the initial value of the optimum candidate total weight 999, the process proceeds to the process S307. In process S307, the optimum candidate total weight is set to 362, which is the value of the estimated total weight, and the value of the optimum candidate pattern is set to 31, which is the temporary selection pattern at this time. In the next process S308, the provisional selection pattern is 33. In processing S309, since the temporary selection pattern does not exceed 1023, the process jumps to processing S303 to start the seventeenth repeated processing. Hereinafter, in the same manner, repeated processing is performed according to the estimated total weight.

In the 83rd repeated processing, the weighing units 2 ₅ , 2 ₄ , 2 ₇ and 2 ₈ are temporarily selected. The estimated total weight is calculated to be 300 (process 303). In the next processing S304, since the estimated total weight 300 is 300 or more of the set value, the processing proceeds to processing S305. In step S305, the estimated total weight 300 is equal to or less than 370 which is the sum of 300 of the set value and 70 of the allowable value, and thus the process proceeds to step S306. In the process S306, since the estimated total weight 300 is smaller than the optimum candidate total weight 303, the process proceeds to the process S307. In step S307, the optimum candidate total weight is set to 300, which is the value of the estimated total weight, and the value of the optimum candidate pattern is set to 165, which is the temporary selection pattern at this time. In the next process S308, the provisional selection pattern is 167. In processing S309, since the temporary selection pattern does not exceed 1023, the process jumps to processing S303 to start the 84th repeated processing. Hereinafter, in the same manner, repeated processing is performed according to the estimated total weight.

  In the 512th iterative process, all of the weighing devices 2 are provisionally selected. The estimated total weight is calculated to be 768 (process 303). In the next process S304, since the estimated total weight 768 is 300 or more of the set value, the process proceeds to process S305. In the process S305, since the estimated total weight 768 is not equal to or less than 370 which is the sum of the set value 300 and the allowable value 70, the process jumps to the process S308. In process S308, the provisional selection pattern is 1025. In processing S309, since the provisional selection pattern exceeds 1023, the processing proceeds to processing S310.

  In the process S310, since the optimum candidate total weight is changed from the initial value 999, that is, the estimated total weight of the range defined by the set value and the allowable value exists, the process S311 is selected and the process 4 is selected after the process 4. Display a success. On the other hand, if the optimum candidate total weight does not change from the initial value of 999 in process S310, it means that there is no estimated total weight in the range defined by the set value and the allowable value, so process 5 Will display a selection failure.

In the processing S311, in the weighing data table 71bc corresponding to 165 (binary representation 0010100101) of the optimum candidate pattern, the weighing equipment 2 ₅ , the weighing equipment 2 ₄ , the weighing equipment 2 ₇ and the weighing equipment which are combinations of the optimum candidate patterns The number of weighing operations of 2 ₈ is the initial value, that is, 1 and the combination of the optimal candidate patterns is not a combination of weighing device 2 ₂ , weighing device 2 ₁ , weighing device 2 ₆ , weighing device 2 ₃ , weighing device 2 ₉ , weighing device 2 ₁₀ Increase the number of times.

  A sound may be generated differently when displaying the selection success (processing S4) and the selection failure (processing S5). For example, a ping-pong sound can be used when the selection is successful, and a buzzer sound can be used when the selection is unsuccessful. In this case, although illustration is omitted, it is possible to provide a sound source of ping pong sound or buzzer sound in the display device 6 or the like.

  As described above, the combination weighing device 1 can prevent the articles from staying long on the weighing tray 2a, since the selected weighing device always includes the weighing device with the largest number of times of weighing. Also, if the estimated total weight is the same, the weigher in which the articles stay longer on the weighing tray 2a is selected, which also prevents the articles from staying longer on the weigh tray .

  After the operator of the combination weighing device 1 determines the set value and the tolerance value, the worker places an article on the empty weighing tray 2a, for example, depresses a foot switch, and designates an article indicated by selection success or selection failure. When the selection is successful and the selection is successful, it is packed in a bag or the like. Thus, the procedure of the worker is simple, and in particular, either selection success or selection failure is displayed, so that the process of discharging the articles from the top of the weighing tray 2a is not complicated for the worker It will be possible.

  Although the embodiments of the present invention have been described above, the present invention is not limited to those described in the embodiments, and various design changes can be made within the scope of the matters described in the claims.

1 combination weighing device 2 _{1 to} 2 ₁₀ weighing devices 2a weighing tray 3 _{1 to} 3 ₁₀ selection indicator 3a LED
4 Weighing start switch 5 Input device 6 Display device 7 Weighing controller 70 CPU
71 main storage unit 71a program storage unit 71b data storage unit 71ba control data storage unit 71bb measurement data table 71bc reordering measurement data table 72 auxiliary storage unit 73 interface unit

Claims (3)

A plurality of weighing devices having a weighing tray and weighing articles on the weighing tray;
A plurality of selection indicators provided for each of the plurality of measuring instruments and capable of displaying selection success and selection failure;
A weighing start switch for starting weighing of the weighing device;
An input device to which at least a combination total weight setting value and an allowance value are determined;
A display device on which at least the setting value and the tolerance value are displayed;
Each item placed on the weighing tray of the plurality of weighing devices is stored with the number of weighings which becomes an initial value when the item is renewed, and when the weighing start switch is turned on, the plurality of weighing devices are stored . to store the single weight is weighing result causes weighed each article, the metering number most often the estimated total weight of a combination of said single weight in the single weight and other of the meter in the meter is the The trial process is repeated using the setting value and the allowable value to select one closest to the setting value, and the estimated total weight of the range defined by the setting value and the allowable value If there is an indication of selection success on the plurality of selection indicators, if the estimated total weight in the range defined by the set value and the allowable value does not exist, the number of times of measurement is the largest. The combination weighing apparatus characterized by comprising a weighing controller for controlling to perform display of the selected failure to the selection indicator corresponding to the meter. In the combination weighing device according to claim 1,
The weighing controller stores a control data storage unit storing at least the set value and the allowable value, a weighing data table storing the number of times of weighing and the single weight in the plurality of weighing instruments, and the weighing data table It has a sort metric data table that is generated by sorting in descending order of frequency,
A combination weighing device characterized in that the control data storage unit corresponds to the order of the rearrangement metric data table in order from the bottom of a bit, and stores a temporary selection pattern to which 2 is added for each repetition process. In the combination weighing device according to claim 1 or 2,
The weighing tray is color-coded for each of the weighing devices,
The combination weighing device according to claim 1, wherein the display device displays a graphic that is substantially the same color as the weighing tray of each weighing device and indicates the weighing device.

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