CN206496823U - A kind of compensation device of stirring station powder feed bin check weighing error - Google Patents
A kind of compensation device of stirring station powder feed bin check weighing error Download PDFInfo
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- CN206496823U CN206496823U CN201720214048.1U CN201720214048U CN206496823U CN 206496823 U CN206496823 U CN 206496823U CN 201720214048 U CN201720214048 U CN 201720214048U CN 206496823 U CN206496823 U CN 206496823U
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Abstract
The utility model belongs to the technical field of electronic-weighing error compensation, the specifically related to a kind of compensation device and method of direct adhering resistance strain gauge transducer paster check weighing error, including the resistance-strain type paster being affixed on material storage device, the resistance-strain type paster is connected with signal processing apparatus；The signal processing apparatus includes measuring unit, display unit and the deviation processing unit being connected with each other；It is provided with the resistance-strain type paster measured value at measuring unit record daily each time point, measuring unit and reduces variable quantity threshold value and increase variable quantity threshold value；The display unit shows weight of material value；The difference of the corresponding measured value of each set time point of deviation processing unit record and show value, and be responsible for the measured value of particular point in time being sent to display unit and show.
Description
Technical field
The utility model belongs to the technical field of electronic-weighing error compensation, and in particular to a kind of stirring station powder feed bin check weighing
The compensation device of error.
Background technology
The application technology of resistance strain type sensor at this stage is highly developed, by directly pasting resistance-strain type
Piece pastes force part to measure the method for weight also by popularity, in some concrete mixing plants, dry mixed mortar stirring
Stand, in the powder-material storage silo of the steady mixing plant of water etc., weight is measured using adhering resistance strain-type paster, both simple and practical cost
It is again low, there is very big practical value.
But this mode for directly pasting measurement weight using resistance-strain type paster has one and is stranded in actual applications
The problem of disturbing people, although being exactly that some stirring station equipments are less demanding to powder storage silo weight display precision, it is only necessary to big
Body shows that stock just can be with, but uses direct adhering resistance strain-type paster to measure weight, and error is too big, to find out its cause, surveying
Amount error is that, because direct adhering resistance strain-type paster is influenceed very big by environmental factor, the change of temperature, surrounding are set greatly
Standby vibrations, the position that paster is pasted onto in equipment in addition is generally hollow circular-tube or square tube, and diameter and pipe thickness have not again
Together, and solar irradiation direction is relatively-stationary, cause the heating of supporting leg uneven, along with the precision manually pasted and
Standardization level is all not quite similar so that every suit weight-measuring device condition of work is all different, and check weighing result is also just different.This
A little factors are common to produce very big influence to measurement accuracy, causes error is excessive can not use.
In view of the above-mentioned problems, the measure taken mostly of people at present be eliminate temperature caused by error, pass through a series of temperature
Degree compensation method is modified to measurement error caused by temperature, such as common temperature compensation has series connection strain gauge compensation
Method, bridge circuit self-compensating method, thermal resistance penalty method etc., also have some program compensating methods, in the viscous of resistance-strain type paster
Position mounting temperature sensor is pasted, then the influence for eliminating temperature, such as Publication No. CN1399122A, name are set by program
Referred to as《A kind of method that temperature-compensating is carried out to strain gauge load cell》Patent document disclose a kind of program temperature
Compensation method, the above is regardless of method, the temperature-compensating typically all done just for resistance strain type sensor, to direct
Adhering resistance strain-type paster, which is weighed, to be compensated, then does not reach corresponding effect because of the complexity of its working environment.
The content of the invention
Problem to be solved in the utility model is to overcome the shortcomings of that background technology is missed there is provided a kind of stirring station powder feed bin check weighing
The compensation device of difference.
The utility model is to be achieved through the following technical solutions：A kind of compensation dress of stirring station powder feed bin check weighing error
Put, including the resistance-strain type paster being affixed on material storage device, the resistance-strain type paster and signal processing apparatus phase
Even；The signal processing apparatus includes measuring unit, display unit and the deviation processing unit being connected with each other；Wherein：
Measuring unit：The measured value of the particular point in time of determination is sent into display unit to show；Supervise in real time daily
The measured value of measuring resistance strain-type paster；Variable quantity threshold value is provided with measuring unit, the fluctuation of measuring unit monitoring measured value is simultaneously
Fluctuation is compared with variable quantity threshold value in real time；
Display unit：Show weight of material value；Receive measuring unit and deviation processing cell data；
Deviation processing unit：The difference of the corresponding measured value of daily set time point and show value is recorded, certain week is calculated
Mean difference in phase.
According to the compensation device of stirring station powder feed bin check weighing error described above, a kind of stirring station powder feed bin check weighing error
Compensation method, comprise the following steps：
1）Determine show value：Material actual weight in measurement material storage device, is designated as actual value first, then measures single
Member records the resistance-strain type paster measured value of each set time point, continuously records some days, by the measurement of set time point
Value is compared with actual value, obtain closest to actual value measured value set time point, be designated as particular point in time, by this it is specific when
Between the measured value put be defined as show value, before next particular point in time is re-scaled, with this particular point in time of the same day
Measured value shown as show value in display unit；
2）Determine after show value, weight of material is daily with the measured value of the particular point in time on the same day in material storage device
Shown as show value in display unit, during except following situations occur during display：
When A measured values are reduced：When the decrement of measured value is more than variable quantity threshold value, new show value subtracts for current show value
Go the decrement of measured value；
During B measured value increases：When the incrementss of measured value are more than variable quantity threshold value, new show value adds for current show value
The incrementss of upper measured value；
C signal processing unit is not when particular point in time is turned back on：Show value subtracts for the measured value of available machine time point
With the mean difference of the immediate set time point of available machine time point.
It is preferred that, said signal processing device and body phase company of weighing, body of weighing are located at the discharging of material storage device
At mouthful, body of weighing is used for the decrement for accurately measuring material.
It is preferred that, above-mentioned body of weighing is called that electronic-weighing claims body.
It is preferred that, said signal processing device is connected with computer, and computer is used for the data for storing signal processing apparatus,
And it is used as human-computer interface control monitoring signals processing unit.
According to the compensation device of the above-mentioned stirring station powder feed bin check weighing error for being connected to body of weighing, a kind of mixing plant powder
The compensation method of storehouse check weighing error, comprises the following steps：
1）Determine show value：Material actual weight in measurement material storage device, is designated as actual value first, then measures single
Member records the resistance-strain type paster measured value of each set time point, continuously records some days, by the measurement of set time point
Value is compared with actual value, obtain closest to actual value measured value set time point, be designated as particular point in time, by this it is specific when
Between the measured value put be defined as show value, before next particular point in time is re-scaled, with this particular point in time of the same day
Measured value shown as show value in display unit；
2）Determine after show value, weight of material is daily with the measured value of the particular point in time on the same day in material storage device
Shown as show value in display unit, during except following situations occur during display：
When A measured values are reduced：Body of weighing is precisely weighed this decrement, and at this moment the decrement of measured value is more than variable quantity
Threshold value, new show value subtracts this decrement for current show value；
During B measured value increases：When the incrementss of measured value are more than variable quantity threshold value simultaneously, new show value is current display
Incrementss of the value plus measured value；
C signal processing unit is not when particular point in time is turned back on：Show value subtracts for the measured value of available machine time point
With the mean difference of the immediate set time point of available machine time point.
Compensation device is connected to after body of weighing, and the stylish show value of A situations occurs in differing only in for two methods
Computational methods.
There are above-mentioned steps 2）In A or second day of B or C situations, still using the measured value of same day particular point in time as
Show value is shown in display unit.
If material is being consumed again while increase in material storage device, according to actual conditions because material is increased
Speed is far longer than the speed of supplies consumption, therefore overall material is in increase state, and measured value is increasing, therefore this situation
Also B situations are belonged to；
It is preferred that, it is a set time point, institute at interval of a fixed time period since integral point that above-mentioned set time point, which is,
The fixed time period stated is one hour or half an hour or 15 minutes or ten minutes.
The setting of above-mentioned variable quantity threshold value need to set certain numerical value, different material variable quantity thresholds according to actual conditions
The setting of value is different, and the setting of variable quantity threshold value is to increase to distinguish the small fluctuation of measured value under environmental factor interference with material
Great fluctuation process when adding deduct few, prevents the interference of the small fluctuation of measured value, and the interference of environmental factor makes the fluctuation that measured value occurs
It is slow, gradual, small, and the material fluctuation that measured value occurs when increasing or decreasing is quickly, concentrated, substantially
, when only the incrementss or decrement of measured value are more than variable quantity threshold value, show value just can according to circumstances change, otherwise not
Become.
Signal processing apparatus of the present utility model determines show value, and automatic data collection different time points by particular point in time
On deviation, and this difference stored, is handled, to reduce the error that the various factors such as temperature are caused, it is simple in construction into
This is low, and method form is unlike the prior art, simple and effective to reduce error so that accuracy meets measurement request,
A great problem of the direct adhering resistance strain-type paster measurement weight in practice is solved, in practice should be very suitable for
With popularization.
Brief description of the drawings
Fig. 1 is the system block diagram of embodiment 1 of the present utility model.
Fig. 2 is the system block diagram of embodiment 2 of the present utility model.
Embodiment
The utility model is described in further detail below in conjunction with the accompanying drawings, but is limited not as to of the present utility model.
Embodiment 1：
The present embodiment material storage device elects concrete mixing plant powder storage silo, concrete mixing plant powder storage silo as
On post resistance-strain type paster, generally resistance-strain type paster is affixed on the vertical of concrete mixing plant powder storage silo
It is used to measure weight on support column, resistance-strain type paster is connected by shielding line with signal processing apparatus.
Signal processing apparatus include be connected with each other measuring unit, display unit and deviation processing unit, below one
A pair of three units are introduced：
Measuring unit：The measured value of the particular point in time of determination is sent into display unit to show；Supervise in real time daily
The measured value of measuring resistance strain-type paster, and the incrementss or decrement of the fluctuation, i.e. measured value of monitoring measured value at any time, in addition
Be additionally provided with variable quantity threshold value in measuring unit, measuring unit by the incrementss or decrement of measured value in real time with variable quantity threshold value
It is compared, when the incrementss or decrement of measured value are higher than variable quantity threshold value, by the incrementss of measured value or decrement number
According to being transferred to display unit.
Display unit：Weight of material value is shown, show value is designated as；Receive the number of measuring unit and the transmission of deviation processing unit
According to according to circumstances changing show value.
Deviation processing unit：The difference of the corresponding measured value of each set time point and show value is recorded, difference is designated as, and
The mean difference in some cycles is calculated, this cycle can be with sets itself.
A kind of compensation method of stirring station powder feed bin check weighing error, its compensation device based on the present embodiment and realize, wrap
Include following steps：
1）Determine show value：
Show value is the weight of material value that display unit is shown, determines that the process of show value is as follows：Ensureing concrete
In the case that material in mixing plant powder storage silo is constant, the true of material in concrete mixing plant powder storage silo is measured first
True weight amount, is designated as actual value, and then measuring unit records the measured value that the resistance-strain type paster of each set time point is measured,
Here depending on the selection according to circumstances of set time point, the reconnaissance typically since integral point, then since this integral point at interval of
One fixed time period is designated as a set time point, and the fixed time period of the present embodiment elects a hour as, and the set time clicks
By that analogy, i.e., it is a set time every a hour since some integral point for 1 point, 2 points, 3 points ... ...
Point, this sample embodiment is divided into 24 set time points for one day, and measuring unit records the survey of this 24 set time points daily
Value, continuously records some days, and the present embodiment is exemplified by 3 days, then by the measured value of each set time point in 3 days and very
Real value compares, and obtains closest to the set time point corresponding to the measured value of actual value, is designated as particular point in time, i.e., when specific
Between the measured value measured of point resistance-strain type paster and actual value it is closest, the measured value of this particular point in time is defined as to show
Value, before next particular point in time is re-scaled, using the measured value of this particular point in time of the same day as show value aobvious
Show in unit and show, i.e., the daily show value of display unit is the measured value in particular point in time, present embodiment assumes that morning 2 daily
The measured value at o'clock and actual value are closest, and that is just using 2:00 AM clock as particular point in time, and daily display unit is shown
The measured value of same day 2:00 AM clock.
2）Determine after show value, weight of material is daily with the special time on the same day in concrete mixing plant powder storage silo
The measured value of point shows that the present embodiment show value is daily with the measurement of same day 2:00 AM clock as show value in display unit
It is worth for show value, during except following situations occur during display：
When A measured values are reduced：When being discharged in concrete mixing plant filler bin, material is reduced, and at this moment measuring unit is measured
Value is reducing, and when the decrement of measured value is more than variable quantity threshold value, the decrement data of measured value are transferred to by measuring unit
Display unit, display unit receives data, and now the new show value of display unit is the reduction that current show value subtracts measured value
Amount, this process is real-time, continuous reduction, and is shown by second day still using the measured value of 2:00 AM clock as show value
Show.
During B measured value increases：When the incrementss of measured value are more than the variable quantity threshold value set, this stylish show value is to work as
Preceding show value adds the incrementss of measured value, and second day aobvious in display unit still using the measured value of 2:00 AM as show value
Show.
While material increase in concrete mixing plant filler bin again in spent material when because material filling speed
It is far longer than the speed of supplies consumption, so overall material is in increase state, measured value is increase state, and such case is also returned
Belong to B situations.
C signal processing unit is not when 2:00 AM is turned back on：Such case is generally present in signal processing apparatus shutdown
Turn back on, or turned back on after power-off maintenance again afterwards, when at this moment show value is subtracted with start for the measured value of available machine time point
Between put the mean difference of immediate set time point, such as turn back on the time for 12 points 10 minutes, the immediate set time
Point is 12 points, and show value is that 12 points of measured values of 10 minutes subtract 12 points of corresponding mean differences；Second day still with 2:00 AM
Measured value is shown as show value.
The calculating value of mean difference is preferred from the difference that distance turns back on nearest one week of time point, and difference is fixation
Point in time measurement value subtracts show value, and difference and mean difference are by deviation processing unit record and calculating.Citing is introduced flat below
The specific algorithm of equal difference：If turn back on time point be 12 points 10 minutes, at this moment deviation processing unit will transfer nearest one
12 points of difference, has 7 differences in all, and then again this 7 differences are taken with arithmetic mean, and calculating obtains mean difference, at this moment
Show value is that the measured value that current measuring unit is transmitted subtracts mean difference, and this show value is the material weight after turning back on
Value.
Said signal processing device is alternatively the part being arranged in computer, also in protection domain of the present utility model
It is interior.
Embodiment 2：
The present embodiment difference from Example 1 is the discharge outlet in concrete mixing plant powder storage silo provided with title
Claim body again, body of weighing is used for the weight for measuring the weight, i.e. material reduction of discharging, weighing during discharging is more accurate, here
Body of weighing is called that electronic-weighing claims body, and body of weighing is connected with signal processing apparatus, and signal processing apparatus is connected with computer, meter
Calculation machine records the material decrement each time for bulk measurement of weighing.Computer is used for the data for storing signal processing apparatus, and makees
For human-computer interface control monitoring signals processing unit, show value can be shown on signal processing apparatus, can also be in computer
Upper display.
According to the compensation device of the present embodiment 2, its compensation method difference from Example 1 is step 2）In A feelings
In condition, the present embodiment when occurring A situations during display, processing method is changed into as follows：
When A measured values are reduced：When being discharged in concrete mixing plant filler bin, material is reduced, and at this moment measuring unit is measured
Value is reducing, and cognition of being weighed during discharging is precisely weighed this decrement, and this decrement is transferred into signal
Recorded in processing unit processing and real-time Transmission computer, at this moment the decrement of measured value is more than variable quantity threshold value, new display
It is worth and this decrement that body of weighing is transmitted is subtracted for current show value, this process is real-time, continuous reduction, and
Shown to second day measured value still using 2:00 AM clock as show value.
With compensation device of the present utility model and method, by experimental applications, other temperature compensations are solved not
The error compensation problem that can be done for direct adhering resistance strain gauge check weighing, meets wanting for most material measurement weight
Ask, be very suitable for the popularization and application in actual production.
One kind of embodiment described above, simply the utility model more preferably embodiment, the skill of this area
The usual variations and alternatives that art personnel are carried out in the range of technical solutions of the utility model should all be included in of the present utility model protect
In the range of shield.
Claims (4)
1. a kind of compensation device of stirring station powder feed bin check weighing error, including the resistance-strain type patch being affixed on material storage device
Piece, it is characterised in that：The resistance-strain type paster is connected with signal processing apparatus；The signal processing apparatus includes mutually interconnecting
Measuring unit, display unit and the deviation processing unit connect；
Measuring unit：The measured value of the particular point in time of determination is sent into display unit to show；Monitoring is electric in real time daily
Hinder the measured value of strain-type paster；It is provided with variable quantity threshold value in measuring unit, the fluctuation of measuring unit monitoring measured value and by ripple
It is dynamic to be compared in real time with variable quantity threshold value；
Display unit：Show weight of material value；Receive measuring unit and deviation processing cell data；
Deviation processing unit：The difference of the corresponding measured value of daily set time point and show value is recorded, is calculated in some cycles
Mean difference.
2. the compensation device of stirring station powder feed bin check weighing error according to claim 1, it is characterised in that：At the signal
Reason device and body phase company of weighing, body of weighing are located at the discharge outlet of material storage device.
3. the compensation device of stirring station powder feed bin check weighing error according to claim 2, it is characterised in that：It is described to weigh
Body is that electronic-weighing claims body.
4. the compensation device of stirring station powder feed bin check weighing error according to claim 2, it is characterised in that：At the signal
Reason device is connected with computer.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720214048.1U CN206496823U (en) | 2017-03-07 | 2017-03-07 | A kind of compensation device of stirring station powder feed bin check weighing error |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201720214048.1U CN206496823U (en) | 2017-03-07 | 2017-03-07 | A kind of compensation device of stirring station powder feed bin check weighing error |
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| CN206496823U true CN206496823U (en) | 2017-09-15 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2618878A (en) * | 2022-05-18 | 2023-11-22 | E Collinson & Co Ltd | Silo content monitoring system |
-
2017
- 2017-03-07 CN CN201720214048.1U patent/CN206496823U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2618878A (en) * | 2022-05-18 | 2023-11-22 | E Collinson & Co Ltd | Silo content monitoring system |
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Effective date of registration: 20201229 Address after: 250014 room 1815, 14677 Jingshi Road, Lixia District, Jinan City, Shandong Province Patentee after: SHANDONG HIGHWAY & BRIDGE CONSTRUCTION Co.,Ltd. Address before: Room 501, unit 2, 20 / F, area 4, dianliu community, Lixia District, Jinan City, Shandong Province Patentee before: Qi Jianhua |