CN101788328A - Weighing control device of platform weighing scale and method thereof - Google Patents
Weighing control device of platform weighing scale and method thereof Download PDFInfo
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- CN101788328A CN101788328A CN 201010116633 CN201010116633A CN101788328A CN 101788328 A CN101788328 A CN 101788328A CN 201010116633 CN201010116633 CN 201010116633 CN 201010116633 A CN201010116633 A CN 201010116633A CN 101788328 A CN101788328 A CN 101788328A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01G—WEIGHING
- G01G11/00—Apparatus for weighing a continuous stream of material during flow; Conveyor belt weighers
- G01G11/14—Apparatus for weighing a continuous stream of material during flow; Conveyor belt weighers using totalising or integrating devices
- G01G11/16—Apparatus for weighing a continuous stream of material during flow; Conveyor belt weighers using totalising or integrating devices being electrical or electronic means
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Abstract
The invention provides a weighing control device of a platform weighing scale and a method thereof. The weighing control device comprises a left side weighing sensor, a right side weighing sensor, a fully suspension weighing platform and a weighing controller, wherein the output signals of the left side weighing sensor and the right side weighing sensor are divided into a left path of signal and a right path of signal and then respectively enter the weighing controllers; the left and right paths of weighing signals are combined into three groups of weighing weight through the program control of the weighing controller, i.e. one group of combined weighing weight and two groups of divided weighing weight; the real-time online comparison is carried out for the two groups of divided weighing weight, if the numerical error of the two groups of divided weighing weight is larger, the zero value of each group of weighing sensor is compared with each initial zero value when no material is on the platform weighing scale, the weighing controller can take a group of material divided weighing weight with small zero value error to substitute for the combined weighing weight, at the same time, the weighing controller displays the group of weighing value normally output by the weighing sensor, thus ensuring that when one group of weighing sensor has fault, the other group of weighing sensor still can work, and the platform weighing scale still can output accurate weighing value, so the reliability of the platform weighing scale is improved.
Description
Technical field
The present invention relates to a kind of Weighing control device and method thereof, especially a kind of Weighing control device and method thereof that is applicable to platform scale.
Background technology
At present, more platform scale adopts and LOAD CELLS is set and with the weighing-up wave of each LOAD CELLS output and be unified into one road weighing-up wave and send into weighing controller under weighing platform, and shows a kind of Weighing control device of weighing results on weighing controller.The Weighing control device of the platform scale of this version, because each road weighing-up wave also is unified into one road weighing-up wave and sends into weighing controller, like this when wherein having a sensor to break down, then whole platform scale will measure inaccurate, and in metering process, be difficult for being found, therefore in weighing material process can since metering forbidden cause damage.
Summary of the invention
The objective of the invention is to overcome the weak point in the prior art, a kind of Weighing control device and method thereof of platform balance are provided, by changing the weighing-up wave array mode and corresponding weighing value being compared, can monitor certain LOAD CELLS breaks down, and control when certain LOAD CELLS is damaged, platform scale still can carry out comparatively accurately weighing and show this weighing value.
For achieving the above object, the Weighing control device of platform scale of the present invention, comprise full suspension weighing platform, be located at the LOAD CELLS of the left and right sides, full suspension weighing platform below, the LOAD CELLS in left side is respectively the first from left LOAD CELLS, the second from left LOAD CELLS to left N LOAD CELLS; The LOAD CELLS on right side is respectively a right LOAD CELLS, right two LOAD CELLS to right N LOAD CELLS; The signal output part branch left and right sides two-way of LOAD CELLS connects by computing machine or electronic-weighing and shows the weighing controller that control instrument constitutes, the road weighing-up wave that the first from left LOAD CELLS, the second from left LOAD CELLS produce to left N LOAD CELLS is respectively the first from left weighing-up wave, the second from left weighing-up wave to left N weighing-up wave, and the road weighing-up wave that a right LOAD CELLS, right two LOAD CELLS produce to right N LOAD CELLS is respectively a right weighing-up wave, right two weighing-up waves to right N weighing-up wave; Combination obtains three groups and weighs control program by weighing controller to left and right sides two-way weighing-up wave, i.e. a combination weighing amount that is obtained to right N weighing-up wave two-way weighing-up wave merging to left N weighing-up wave and a right weighing-up wave, right two weighing-up waves by the first from left weighing-up wave, the second from left weighing-up wave; Weigh to the component that this road weighing-up wave of left N weighing-up wave obtains by the first from left weighing-up wave, the second from left weighing-up wave; Weigh to another component that this road weighing-up wave of right N weighing-up wave obtains by a right weighing-up wave, right two weighing-up waves.
The Weighting and Controlling method of platform scale of the present invention:
A, before platform scale weighing material, measure respectively after the control program by weighing controller obtains the first from left weighing-up wave, the second from left weighing-up wave to left N weighing-up wave and a right weighing-up wave, right two weighing-up waves to right N weighing-up wave two-way weighing-up wave combination three groups of calibrations of weighing and be collectively referred to as the value at zero point that weight and two components weigh;
B, when platform scale weighing material, a combination weighing amount and two components that the control program by weighing controller measures material weigh;
C, real-time online comparison:
Its error in value of comparison is in preestablishing scope if two components weigh, and this moment, the display demonstration was collectively referred to as weight;
Its error in value exceeds the scope of preestablishing if two components weigh comparison, by weighing controller will not have at this moment respectively that two components of material weighing weigh zero point value and platform scale weighing material value at zero point before compare; Judge that being worth the bigger component of the error a road corresponding LOAD CELLS that weighs zero point has fault, weighing controller weighs to this component and the fault LOAD CELLS is reported to the police, and selects to be worth zero point one group of less material branch of error simultaneously and weighs and replace being collectively referred to as weight and show.
Beneficial effect: the present invention obtains the numerical value that a combination weighing amount and two components weigh by the output signal of weighing platform left and right sides LOAD CELLS being carried out three kinds of different combinations, control program by weighing controller carries out the real-time online comparison to the two components numerical value that weighs, and left and right sides LOAD CELLS obtains when platform scale is not had material zero point value with initial zero value comparison separately, judge that whether one of them or one group of LOAD CELLS have fault and warning, show the normal one group of numerical value that weighs of output in the LOAD CELLS of both sides simultaneously.Even thereby guarantee that some or one group of LOAD CELLS breaks down, the numerical value that weighs that opposite side is exported normal LOAD CELLS still can use as the weighing value of platform scale, thereby has avoided causing whole platform scale scale not have weighing to be worth spendable loss owing to a certain LOAD CELLS breaks down.Solved in weighing work because sensor takes place unusually, caused metering inaccurate, be not easy again to find to measure an inaccurate difficult problem simultaneously, improved the reliability of platform scale.Its method is simple, and the reliability height has practicality widely.
Description of drawings
Fig. 1 is a theory structure synoptic diagram of the present invention;
Fig. 2 is a Weighing control device structural representation of the present invention;
Fig. 3 is a signal fusing program flow diagram of the present invention;
Among the figure: 1-LOAD CELLS, 2-signal converter, the auxilliary weighing apparatus of 3-, 4-weighing controller, 5-weighing platform.
Embodiment
Below in conjunction with accompanying drawing one embodiment of the present of invention are further described:
Weighing control device of the present invention is mainly by full suspension weighing platform 5, is bearing in the LOAD CELLS 1 of the left and right sides, full suspension weighing platform 5 below, a weighing controller 4 constitutes, and the quantity of left and right sides LOAD CELLS 1 at least respectively has two.In Fig. 1 Fig. 2, left and right sides LOAD CELLS 1 is respectively the first from left LOAD CELLS La, the second from left LOAD CELLS Lb and arrives right N LOAD CELLS Rn to left N LOAD CELLS Ln and a right LOAD CELLS Ra, right two LOAD CELLS Rb.When left and right sides LOAD CELLS 1 adopted analog signal sensors, the first from left LOAD CELLS La, the second from left LOAD CELLS Lb output terminal to left N LOAD CELLS Ln and a right LOAD CELLS Ra, right two LOAD CELLS Rb to right N LOAD CELLS Rn divided two-way to be connected the weighing controller 4 that is made of computing machine or electronic-weighing demonstration control instrument by signal converter 2; When about two row LOAD CELLS 1 when adopting the sensor of digital signal, but undesired signal converter 2 and directly connect by computing machine or electronic-weighing and show the weighing controller 4 that control instrument constitutes.Weighing controller 4 mainly comprises processor, storer, display and power supply, wherein signal converter 2 is 24 analog to digital conversion circuit AD7710, processor is 32 bit CPU integrated circuit S3C44B0X, storer is integrated circuit 39VF160, display is 640 * 320 dot matrix, and power supply is the 220V alternating current.The weighing-up wave that the first from left LOAD CELLS La, the second from left LOAD CELLS Lb produce to right N LOAD CELLS Rn to left N LOAD CELLS Ln and a right LOAD CELLS Ra, right two LOAD CELLS Rb be respectively the first from left weighing-up wave La1, the second from left weighing-up wave Lb1 to left N weighing-up wave Ln1 and a right weighing-up wave Ra1, right two weighing-up wave Rb1 to right N weighing-up wave Rn1; Control program by weighing controller 4, the first from left weighing-up wave La1, the second from left weighing-up wave Lb1 are combined as three groups to left N weighing-up wave Ln1 and a right weighing-up wave Ra1, right two weighing-up wave Rb1 to right this two-way weighing-up wave of N weighing-up wave Rn1 weigh, promptly merge a combination weighing amount that obtains to left N weighing-up wave Ln1 and a right weighing-up wave Ra1, right two weighing-up wave Rb1 to this two-way weighing-up wave of right N weighing-up wave Rn1 by the first from left weighing-up wave La1, the second from left weighing-up wave Lb1; Weigh to the component that left this road weighing-up wave of N weighing-up wave Ln1 obtains by the first from left weighing-up wave La1, the second from left weighing-up wave Lb1; Weigh to another component that right this road weighing-up wave of N weighing-up wave Rn1 obtains by a right weighing-up wave Ra1, right two weighing-up wave Rb1, promptly weighing platform is carried out one group of full suspension type and be collectively referred to as weight and two groups of check weighings that the lever branch weighs.
The array mode of the weighing-up wave more than corresponding, platform scale is under the situation of not doing any structure variation, and the function that only changes the pin joint of left and right sides LOAD CELLS 1 and weighing platform 5 just can obtain three kinds of multi-form weighing platforms 5, first kind of form: the left and right sides LOAD CELLS 1 in the weighing platform 5 and the pin joint of weighing platform 5 be all as force-detecting position, and this moment, weighing platform 5 combined transformations formed is one and is collectively referred to as heavy platform 5; Second kind of form: the first from left LOAD CELLS La in the weighing platform 5, the second from left LOAD CELLS Lb arrives the pin joint of left N LOAD CELLS Ln and weighing platform 5 only as fulcrum, and a right LOAD CELLS Ra, right two LOAD CELLS Rb arrive the pin joint of right N LOAD CELLS Rn and weighing platform 5 as force-detecting position, this moment, weighing platform 5 combined transformations formed one with the first from left LOAD CELLS La, the second from left LOAD CELLS Lb arrives the pin joint of left N LOAD CELLS Ln and weighing platform 5 as fulcrum, with a right LOAD CELLS Ra, right two LOAD CELLS Rb divide weighing platform 5 to the pin joint of right N LOAD CELLS Rn and weighing platform 5 as a lever of force-detecting position; The third form: the first from left LOAD CELLS La in the weighing platform 5, the second from left LOAD CELLS Lb arrives the pin joint of left N LOAD CELLS Ln and weighing platform 5 as force-detecting position, and a right LOAD CELLS Ra, right two LOAD CELLS Rb arrive the pin joint of right N LOAD CELLS Rn and weighing platform 5 as fulcrum, this moment, weighing platform 5 combined transformations formed one with the first from left LOAD CELLS La, the second from left LOAD CELLS Lb arrives the pin joint of left N LOAD CELLS Ln and weighing platform 5 as force-detecting position, with a right LOAD CELLS Ra, right two LOAD CELLS Rb divide weighing platform 5 to the pin joint of right N LOAD CELLS Rn and weighing platform 5 as another lever of fulcrum.Promptly be collectively referred to as weight, divide weighing platform 5 corresponding two branches to weigh by lever by full suspension type master weighing platform 5 one of correspondence.
The Weighting and Controlling method of platform scale of the present invention: for the weighing platform 5 of full suspension type, the LOAD CELLS 1 that its left and right sides is provided with is respectively the first from left LOAD CELLS La, the second from left LOAD CELLS Lb is to a left N LOAD CELLS Ln and a right LOAD CELLS Ra, right two LOAD CELLS Rb are to right N LOAD CELLS Rn, connection shows the weighing controller 4 that control instrument constitutes by computing machine or electronic-weighing, and the control program by weighing controller 4 is with the first from left number of delivering a letter La1 that weighs, the second from left weighing-up wave Lb1 is to a left N weighing-up wave Ln1 and a right weighing-up wave Ra1, right two weighing-up wave Rb1 obtain three groups to right N weighing-up wave Rn1 two-way weighing-up wave combination and weigh.Before platform scale weighing material, measure the value at zero point that a combination weighing amount and two components weigh after the control program by weighing controller 4 obtains the first from left weighing-up wave La1, the second from left weighing-up wave Lb1 to left N weighing-up wave Ln1 and a right weighing-up wave Ra1, right two weighing-up wave Rb1 to right N weighing-up wave Rn1 two-way weighing-up wave combination three groups of calibrations of weighing respectively; When platform scale weighing material, measure a combination weighing amount of material and the value that two components weigh by the control program of weighing controller 4; In platform scale weighing material, the control program by weighing controller 4 weighs the branch of two auxilliary weighing apparatus 3 and compares, judges control in real time.Under the normal operation, two components weigh its error in value of comparison in preestablishing scope, it is predefined permissible error value range, for example 1%～5%, this moment, display showed the value that is collectively referred to as weight, to be the first from left weighing-up wave La1, the second from left weighing-up wave Lb1 merge to left N weighing-up wave Ln1 and a right weighing-up wave Ra1, right two weighing-up wave Rb1 to right N weighing-up wave Rn1 two-way weighing-up wave obtain be collectively referred to as weight, be the operate as normal value.Under the non-normal working situation, two components weigh the comparison its error in value exceed the scope of preestablishing, promptly LOAD CELLS 1 breaks down; When treating that platform scale does not have material, weighing controller 4 respectively two components are weighed with platform scale weighing material before the value at zero point that weighs of two components compare, promptly two branches obtaining of the weighing-up wave of the first from left weighing-up wave La1, the second from left weighing-up wave Lb1 that the control program in the processor is corresponding respectively with two auxilliary weighing apparatus 3 to left N weighing-up wave Ln1 and a right weighing-up wave Ra1, right two weighing-up wave Rb1 to right N weighing-up wave Rn1 one tunnel value at zero point that weighs with platform scale weighing material two components before that weighs compares; Judge that being worth the bigger component of the error corresponding LOAD CELLS that weighs zero point has fault, 4 pairs of these components of weighing controller weigh and the fault LOAD CELLS is reported to the police, selecting to be worth zero point the less component of error simultaneously weighs and replaces being collectively referred to as weight and show, even platform scale still can have the output of weighing value thereby assurance is some or certain several LOAD CELLS 1 breaks down, improved the reliability of platform scale greatly.
Figure 3 shows that the signal fusing program circuit:
A. to two components weigh the comparison its error in value whether preestablishing scope;
B. be that then display shows the first from left weighing-up wave La1, the second from left weighing-up wave Lb1 weight that is collectively referred to as to left N weighing-up wave Ln1 and a right weighing-up wave Ra1, right two weighing-up wave Rb1 to right N weighing-up wave Rn1 two-way weighing-up wave merging;
C. deny not divide other value to compare to left N weighing-up wave Ln1 and a right weighing-up wave Ra1, right two weighing-up wave Rb1 to right N weighing-up wave Rn1 to the first from left weighing-up wave La1, the second from left weighing-up wave Lb1 when then platform scale being had material with initial zero value separately by processor at zero point;
D. judge that being worth the bigger left side of error or right side one tunnel LOAD CELLS 1 zero point is the fault LOAD CELLS, and report to the police.
The branch that e. will be worth less left road weighing-up wave of error or right wing weighing-up wave zero point weighs to send in the display and shows.
Claims (2)
1. the Weighing control device of a platform scale, comprise full suspension weighing platform (5), be located at the LOAD CELLS (1) of the left and right sides, full suspension weighing platform (5) below, the LOAD CELLS in left side is respectively the first from left LOAD CELLS (La), the second from left LOAD CELLS (Lb) to left N LOAD CELLS (Ln); The LOAD CELLS on right side is respectively a right LOAD CELLS (Ra), right two LOAD CELLS (Rb) to right N LOAD CELLS (Rn); The signal output part branch left and right sides two-way of LOAD CELLS connects by computing machine or electronic-weighing and shows the weighing controller (4) that control instrument constitutes; The road weighing-up wave that the first from left LOAD CELLS (La), the second from left LOAD CELLS (Lb) produce to left N LOAD CELLS (Ln) is respectively the first from left weighing-up wave (La1), the second from left weighing-up wave (Lb1) to left N weighing-up wave (Ln1), and the road weighing-up wave that a right LOAD CELLS (Ra), right two LOAD CELLS (Rb) produce to right N LOAD CELLS (Rn) is respectively a right weighing-up wave (Ra1), right two weighing-up waves (Rb1) to right N weighing-up wave (Rn1); It is characterized in that: by the control program of weighing controller (4), the left and right sides two-way weighing-up wave that receives is combined as three groups weighs, promptly merge a combination weighing amount that obtains to right N weighing-up wave (Rn1) two-way weighing-up wave to left N weighing-up wave (Ln1) and a right weighing-up wave (Ra1), right two weighing-up waves (Rb1) by the first from left weighing-up wave (La1), the second from left weighing-up wave (Lb1); Weigh to the component that left N weighing-up wave (Ln1) obtains by the first from left weighing-up wave (La1), the second from left weighing-up wave (Lb1); Weigh to another component that right N weighing-up wave (Rn1) obtains by a right weighing-up wave (Ra1), right two weighing-up waves (Rb1).
2. control method of the Weighing control device of platform scale according to claim 1 is characterized in that:
A, before platform scale weighing material, the control program by weighing controller (4) with the first from left weighing-up wave (La1), the second from left weighing-up wave (Lb1) to left N weighing-up wave (Ln1) and a right weighing-up wave (Ra1), right two weighing-up waves (Rb1) to three groups of calibration backs of weighing that the combination of right N weighing-up wave (Rn1) two-way weighing-up wave obtains, measure and write down and be collectively referred to as the value at zero point that weight and two components weigh respectively;
B, when platform scale weighing material, a combination weighing amount and two components of measuring material by the control program of weighing controller (4) weigh;
C, real-time online comparison:
If in predefined scope, this moment, the display demonstration was collectively referred to as weight to two component border weight ratios to its error in value;
Its error in value exceeds the scope of preestablishing if two components weigh comparison, and the value at zero point that two components that zero point that will not have at this moment respectively that two components of material weighing weigh by weighing controller (4), value write down before with platform scale weighing material weigh compares; Judge that being worth the bigger component of error pairing one tunnel LOAD CELLS that weighs zero point has fault, weighing controller (4) weighs to this component and the fault LOAD CELLS is reported to the police, and selects to be worth zero point the less component of error simultaneously and weighs and replace being collectively referred to as weight and show.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010116633 CN101788328A (en) | 2010-03-03 | 2010-03-03 | Weighing control device of platform weighing scale and method thereof |
| PCT/CN2010/080550 WO2011106987A1 (en) | 2010-03-03 | 2010-12-30 | Weighing control device of platform weighing scale and method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010116633 CN101788328A (en) | 2010-03-03 | 2010-03-03 | Weighing control device of platform weighing scale and method thereof |
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| CN101788328A true CN101788328A (en) | 2010-07-28 |
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| CN 201010116633 Pending CN101788328A (en) | 2010-03-03 | 2010-03-03 | Weighing control device of platform weighing scale and method thereof |
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| WO (1) | WO2011106987A1 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102538918A (en) * | 2012-01-04 | 2012-07-04 | 深圳市芯海科技有限公司 | Networking intelligent digital weighing sensor |
| CN103038614A (en) * | 2010-09-22 | 2013-04-10 | 大和制衡株式会社 | Weighing system and weighing work method |
| WO2014131318A1 (en) * | 2013-02-26 | 2014-09-04 | 梅特勒-托利多(常州)精密仪器有限公司 | Intelligent analogue weighing sensor and self-diagnosing method thereof |
| CN105938004A (en) * | 2016-01-20 | 2016-09-14 | 申俊 | Combined electronic weighing scale |
| CN110487375A (en) * | 2019-07-29 | 2019-11-22 | 彭青珍 | A kind of double-type weighing sensor |
| CN110873603A (en) * | 2018-08-31 | 2020-03-10 | 株式会社石田 | Combined metering device |
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| CN108844869B (en) * | 2018-06-06 | 2024-04-12 | 山西省生态环境监测和应急保障中心(山西省生态环境科学研究院) | Online smoke dust sampling and weighing device and method |
| CN110682445A (en) * | 2018-07-04 | 2020-01-14 | 福建南方路面机械有限公司 | Double-range aggregate scale and working method thereof, stirring equipment and batching station |
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- 2010-12-30 WO PCT/CN2010/080550 patent/WO2011106987A1/en active Application Filing
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| CN101532872A (en) * | 2009-04-22 | 2009-09-16 | 江苏赛摩集团有限公司 | Weighing controlling device and method of electronic belt scale |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103038614A (en) * | 2010-09-22 | 2013-04-10 | 大和制衡株式会社 | Weighing system and weighing work method |
| CN103038614B (en) * | 2010-09-22 | 2015-06-24 | 大和制衡株式会社 | Weighing system and weighing work method |
| CN102538918A (en) * | 2012-01-04 | 2012-07-04 | 深圳市芯海科技有限公司 | Networking intelligent digital weighing sensor |
| WO2014131318A1 (en) * | 2013-02-26 | 2014-09-04 | 梅特勒-托利多(常州)精密仪器有限公司 | Intelligent analogue weighing sensor and self-diagnosing method thereof |
| CN105938004A (en) * | 2016-01-20 | 2016-09-14 | 申俊 | Combined electronic weighing scale |
| CN110873603A (en) * | 2018-08-31 | 2020-03-10 | 株式会社石田 | Combined metering device |
| US11435220B2 (en) | 2018-08-31 | 2022-09-06 | Ishida Co., Ltd. | Combination weighing device with selectable weighing hoppers |
| CN110487375A (en) * | 2019-07-29 | 2019-11-22 | 彭青珍 | A kind of double-type weighing sensor |
| CN110487375B (en) * | 2019-07-29 | 2021-11-02 | 嘉兴博创智能传感科技有限公司 | Double weighing sensor |
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| Publication number | Publication date |
|---|---|
| WO2011106987A1 (en) | 2011-09-09 |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C53 | Correction of patent for invention or patent application | ||
| CB02 | Change of applicant information |
Address after: 221004 science and Technology Park, Xuzhou Economic Development Zone, Jiangsu Applicant after: Saimo Electrical Co., Ltd. Address before: 221004 science and Technology Park, Xuzhou Economic Development Zone, Jiangsu Applicant before: Jiangsu Saimo Group Co., Ltd. |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: APPLICANT; FROM: JIANGSU SAIMO GROUP CO., LTD. TO: SAIMO ELECTRIC CO., LTD. |
|
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20100728 |