CN116124262A - Single-article weighing and counting method with compensation - Google Patents
Single-article weighing and counting method with compensation Download PDFInfo
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- CN116124262A CN116124262A CN202310265964.8A CN202310265964A CN116124262A CN 116124262 A CN116124262 A CN 116124262A CN 202310265964 A CN202310265964 A CN 202310265964A CN 116124262 A CN116124262 A CN 116124262A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01G—WEIGHING
- G01G19/00—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups
- G01G19/40—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups with provisions for indicating, recording, or computing price or other quantities dependent on the weight
- G01G19/413—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups with provisions for indicating, recording, or computing price or other quantities dependent on the weight using electromechanical or electronic computing means
- G01G19/414—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups with provisions for indicating, recording, or computing price or other quantities dependent on the weight using electromechanical or electronic computing means using electronic computing means only
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01G—WEIGHING
- G01G19/00—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups
- G01G19/40—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups with provisions for indicating, recording, or computing price or other quantities dependent on the weight
- G01G19/42—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups with provisions for indicating, recording, or computing price or other quantities dependent on the weight for counting by weighing
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01G—WEIGHING
- G01G23/00—Auxiliary devices for weighing apparatus
- G01G23/01—Testing or calibrating of weighing apparatus
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- Engineering & Computer Science (AREA)
- Mathematical Physics (AREA)
- Theoretical Computer Science (AREA)
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Abstract
The invention discloses a single-article weighing and counting method with compensation, which comprises the steps of carrying out zero calibration after articles on a scale pan are emptied; placing an object to be weighed on the scale pan for weighing, and measuring the weight of the single object; calculating a change value of the quantity of the objects on the scale according to the change of the weight on the scale; the total weight of the items on the scale pan, the number of the items and the single weight of the items are updated. According to the invention, when the electronic scale is taken and put in each time, the single weight of the object is adjusted in real time by recording the change value of each weight, so that the technical problem of counting errors caused by accumulated errors is avoided, and the electronic scale has a very high popularization and application value.
Description
Technical Field
The invention relates to the technical field of article counting, in particular to a single article weighing and counting method with compensation.
Background
The electronic scale is an electronic weighing device adopting sensor technology and electronic technology. Common electronic scales generally comprise a scale pan, a support structure, a weighing sensor and other components or functional components. When an object is placed on the scale pan, pressure acts on the weighing sensor, the sensor is elastically deformed, and meanwhile the internal impedance of the sensor is changed. Under the action of the excitation voltage, the sensor outputs the impedance change as a changed analog signal. The analog signal is converted into a digital signal after being processed by the circuit and is output to the main control terminal for operation and processing. The main control terminal outputs and displays the corresponding result according to a preset program, or further realizes other functions according to the result.
In the existing weighing and counting scheme, zero point calibration is generally performed first, then X articles Z are placed on a scale, and corresponding weights (AD values can be converted and calculated into weights) of the X articles Z can be obtained based on zero point values, so that a single weight corresponding to one article Z is obtained. When the articles Z are taken out or put in, the electronic scale can calculate the number of the articles Z according to the changed total weight and the single quantity of the articles Z.
However, the reliability of this solution is based on the singleness of the individual items Z. However, in the practical application process, the single weights of the objects counted by weighing have more or less deviation, and for the objects with smaller single weights and large single weight deviation, the technical problem of counting errors caused by accumulated errors is easy to occur.
In order to facilitate the understanding of the technical solution of the present invention, the following abbreviations and key terms are defined:
creep: the phenomenon that the strain of a solid material increases with the time under the condition of keeping the stress unchanged.
Zero drift: when the input signal of the amplifying circuit is zero (i.e. no alternating current is input), the static working point is changed due to the influence of factors such as temperature change, unstable power supply voltage and the like, and the static working point is amplified and transmitted step by step, so that the voltage of the output end of the circuit deviates from the original fixed value and floats up and down.
Disclosure of Invention
Aiming at the technical problems, the invention provides a single article weighing and counting method with compensation, which has the following technical scheme:
a compensated single item weighing and counting method comprising the steps of:
s1: carrying out zero point calibration after emptying the objects on the scale pan;
s2: placing an object to be weighed on the scale pan for weighing, and measuring the weight of the single object;
s3: calculating a change value of the quantity of the objects on the scale according to the change of the weight on the scale;
s4: the total weight of the items on the scale pan, the number of the items and the single weight of the items are updated.
Further, the step S3 specifically includes: when the weight on the scale pan changes, firstly judging the change type, and if the change type is creep, adjusting the zero value according to the creep; if the change type is not creep, calculating a change value of the quantity of the articles on the scale pan according to the weight change.
Further, the step S3 further includes determining whether the weights of the objects placed on the scale pan are consistent with the weights of the original objects, and if the weights of the objects are inconsistent with the weights of the original objects, reminding that the objects are placed incorrectly.
Further, the method further comprises the step of setting a difference range of the weight of the article before the step S2.
Further, the weight change on the scale pan is calculated according to the set weight difference range value of the object.
According to the invention, when the electronic scale is taken and put in each time, the single weight of the object is adjusted in real time by recording the change value of each weight, so that the technical problem of counting errors caused by accumulated errors is avoided, and the electronic scale has a very high popularization and application value.
Drawings
Fig. 1: the workflow of example 1 of the present invention is schematically shown.
Fig. 2: the weighing method of example 2 of the present invention is a flow chart.
Fig. 3: the calculation method of embodiment 3 of the present invention is a flowchart.
Detailed Description
In order to make the objects, features and advantages of the present invention more comprehensible, the technical solutions in the embodiments of the present invention are described in detail below with reference to the accompanying drawings, and it is apparent that the embodiments described below are only some embodiments of the present invention, but not all embodiments of the present invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1:
as shown in fig. 1, a single article weighing and counting method with compensation comprises the following steps:
firstly, carrying out zero calibration after emptying objects on a scale pan, namely setting the weight detected under a certain stress condition as zero, namely setting the weight as zero scale;
next, a difference range value a of the weight of the object to be weighed is set, which may be set as: 0< a <0.5;
then, placing n articles to be weighed on the scale pan to weigh to obtain the total weight e, and obtaining the weight y of the single article to be weighed, wherein the weight y is calculated according to a formula (1):
y=e/n (1)
Then, calculating the actual value of the change of the quantity of the articles, wherein the specific calculation method is as follows:
assuming that when a plurality of articles are placed or taken away, the weight change value is f, and d and c are calculated according to the formula (2); if |c| is less than or equal to a, calculating b according to a formula (3); if a < |c| < 1-a), reminding of placement errors; if |c| is equal to or greater than (1-a), and when f >0, b is calculated according to formula (4), and when f <0, b is calculated according to formula (5);
b=d (3)
b=d+1 type (4)
b=d+1 type (5)
Wherein:
d: is the integer part of the quotient of formula f/y;
c is the decimal part of the quotient of formula f/y;
b, the actual value of the quantity change of the articles;
|c|: refers to the absolute value of c;
finally, the object parameters of the current operation weighing platform are updated according to the formula (6), the formula (7) and the formula (8): the number of items n ', the total weight of items e ', the individual weight of items y '. This avoids individual weight differences of the items from leading to count errors by updating the individual weights of the items.
n' =n+b type (6)
Wherein:
n': updated number of items;
e': the total weight of the updated article;
y': the updated weight of the individual item;
the number of the articles, the total weight of the articles and the weight of the single articles are updated after each picking and placing, the updated value replaces the original value to participate in the operation and judgment, namely n ', e ', y ' replace n, e and y to carry out new operation and judgment in the next scheme operation and sequentially reciprocate.
Example 2:
in this embodiment, as shown in fig. 2, when a single-article weight is set to 1000g, the total weight of the single-article weight is set to y=1000 g/10=100 g, and the weight difference range of the single-article weight is set to a=10%, the scale pan of a weighing unit is emptied, zero calibration is performed, and 10 air switches of the same specification are set to perform single-article weight calibration.
In this embodiment, assuming that a plurality of screws are placed on the scale pan, the weight change value f is 60, d is the maximum integer quotient 0 of (60/100), when d=0, c=0.6, and since 0.1< c <0.9, the weight change value f is in line with a < |c| < 1-a), the placement error is reminded, and the misplaced screws should be removed.
Example 3:
as shown in fig. 3, the scale pan of a certain weighing unit is emptied, zero calibration is performed, 10 air switches of a certain same specification are placed for single-article weight calibration, the total weight is 1000g, the single-article weight y=1000 g/10=100 g, and the weight difference range of the air switches of the specification is set to be a=10%.
In this embodiment, a plurality of air switches are removed from the scale pan, the weight change value f is-204 g, d is the maximum integer quotient-2 (-204/100), c is the fractional part-0.04, 0.04<0.1, and the change number b=d= -2 of the article is in accordance with |c| less than or equal to a. The number of air switches on the current scale pan n ' =10+ (-2) =8, the total weight e ' =1000+ (-204) =796, and the updated single article weight, y ' =796/8=99.5 g, the article single weight is no longer 100g.
Example 4:
operation was continued on the results of example 3. At this time, the number of air switches on the weighing platform n=8, the total weight of the articles e=796 g, the weight of the individual articles y=99.5 g, and the air switch weight difference range of the specification a=10%.
And putting a plurality of air switches on the scale pan, wherein the weight change value f is 98g, d is the maximum integer quotient 0 of (98/99.5), c is the decimal part 0.98,0.984>0.9, the absolute value of the decimal part is equal to or more than (1-a), f=98 >0, the change quantity b=d+1=1 of the objects is that the air switch quantity n ' =8+1=9 on the current scale pan, the total weight e ' =796+98=894, the weight of a single object is corrected, and the single weight y ' of the air switch is=894/9= 99.33g. The value of the air switch singles is updated in this way to compensate for counting errors caused by singles deviations between items.
Claims (5)
1. A compensated single item weighing and counting method, comprising the steps of:
s1: carrying out zero point calibration after emptying the objects on the scale pan;
s2: placing an object to be weighed on the scale pan for weighing, and measuring the weight of the single object;
s3: calculating a change value of the quantity of the objects on the scale according to the change of the weight on the scale;
s4: the total weight of the items on the scale pan, the number of the items and the single weight of the items are updated.
2. The method according to claim 1, wherein the step S3 is specifically: when the weight on the scale pan changes, firstly judging the change type, and if the change type is creep, adjusting the zero value according to the creep; if the change type is not creep, calculating a change value of the quantity of the articles on the scale pan according to the weight change.
3. The compensated single item weigh counting method of claim 1, wherein: and step S3, judging whether the weights of the articles placed on the scale pan are inconsistent with the weights of the original articles, and reminding the articles of being placed incorrectly if the weights of the articles are inconsistent with the weights of the original articles.
4. The compensated single item weigh counting method of claim 1, wherein: the step S2 is preceded by setting a difference range value for the weight of the item.
5. The compensated single item weigh counting method of claim 4, wherein: and calculating the weight change on the scale pan according to the set weight difference range value of the object.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202310265964.8A CN116124262A (en) | 2023-03-17 | 2023-03-17 | Single-article weighing and counting method with compensation |
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| CN202310265964.8A CN116124262A (en) | 2023-03-17 | 2023-03-17 | Single-article weighing and counting method with compensation |
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| JPH112573A (en) * | 1997-06-13 | 1999-01-06 | Yamato Scale Co Ltd | Method and device for compensating age-based error of force detector |
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| JP2009053211A (en) * | 2008-12-08 | 2009-03-12 | Yamato Scale Co Ltd | Apparatus for compensating for creep errors in weight signal |
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| CN208432329U (en) * | 2018-08-17 | 2019-01-25 | 国家电网有限公司 | A kind of detection of electrons scale counted for the weighing of electric power line steel tower bolt nut |
| CN109708739A (en) * | 2018-09-07 | 2019-05-03 | 盈奇科技（深圳）有限公司 | A kind of automatic selling counter sensor creep measurement method |
| CN110646079A (en) * | 2018-06-26 | 2020-01-03 | 南京溯源信息技术有限公司 | Multi-path weighing intelligent counting method |
| CN110849459A (en) * | 2019-10-24 | 2020-02-28 | 华帝股份有限公司 | Creep deformation correction method for weighing sensor |
| CN113701859A (en) * | 2021-08-26 | 2021-11-26 | 深圳诺博医疗科技有限公司 | Weighing counting method, device, system, computer equipment and readable storage medium |
| CN115235593A (en) * | 2022-07-22 | 2022-10-25 | 深圳市安瑞科科技有限公司 | Medicine weighing and counting dynamic compensation method and device and electronic equipment |
| CN218319294U (en) * | 2022-06-23 | 2023-01-17 | 天津东宇顺油脂股份有限公司 | Ground sesame seed oil quality testing device |
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2023
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| US4219089A (en) * | 1978-10-06 | 1980-08-26 | Pennsylvania Scale Company | Electronic counting scale |
| US4739846A (en) * | 1980-09-25 | 1988-04-26 | Kabushiki Kaisha Ishida Koki Seisakusho | Counting method |
| US4566070A (en) * | 1981-09-07 | 1986-01-21 | Kabushiki Kaisha Ishida Koki Seisakusho | Method of counting parts |
| US4466499A (en) * | 1981-09-22 | 1984-08-21 | Kabushiki Kaisha Ishida Koki Seisakusho | Combinatorial counting method |
| JPS60127420A (en) * | 1983-12-13 | 1985-07-08 | Ishida Scales Mfg Co Ltd | Combination counting method |
| CN1036828A (en) * | 1988-01-18 | 1989-11-01 | 株式会社岛津制作所 | Electronic counting scale |
| JPH1090048A (en) * | 1996-09-17 | 1998-04-10 | Tanita:Kk | Weighing meter |
| JPH112573A (en) * | 1997-06-13 | 1999-01-06 | Yamato Scale Co Ltd | Method and device for compensating age-based error of force detector |
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