CN108871542A - For monitoring the methods, devices and systems of weighing belt accuracy - Google Patents
For monitoring the methods, devices and systems of weighing belt accuracy Download PDFInfo
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- CN108871542A CN108871542A CN201811107935.4A CN201811107935A CN108871542A CN 108871542 A CN108871542 A CN 108871542A CN 201811107935 A CN201811107935 A CN 201811107935A CN 108871542 A CN108871542 A CN 108871542A
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- tobacco
- weighing belt
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- weighing
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01G—WEIGHING
- G01G23/00—Auxiliary devices for weighing apparatus
- G01G23/01—Testing or calibrating of weighing apparatus
Abstract
The present invention relates to a kind of for monitoring the methods, devices and systems of weighing belt accuracy.Wherein, the method for monitoring tobacco cutting production line epithelium belt scale accuracy, includes the following steps：(1) the history process before climbing up weighing belt based on tobacco calculates the theoretical weight N of tobacco；(2) compare theoretical weight N and tobacco weighed on weighing belt obtained by apparent weight M, when the difference w of N and M exceed threshold interval when, determine weighing belt inaccuracy, conversely, then determining that weighing belt is accurate.This method can carry out the tracking of overall process to the weighing belt of tobacco cutting production line, can learn in time when occurring abnormal, so that discovery measurement in time is abnormal, debugging.
Description
Technical field
The invention belongs to Field of Tobacco, and in particular to a kind of for monitoring the side of tobacco cutting production line weighing belt accuracy
Method, device and system.
Background technique
Weighing belt has obtained a large amount of use on tobacco cutting production line.Its measurement accuracy processes tobacco cutting
Technique important role often seriously affects the processing technology quality of product if big deviation occurs in monitor value.
In order to guarantee the stabilization of product processing quality, needs periodically to calibrate its accuracy, usually monthly weighing belt is adopted
Calibrate once with counterweight, it is annual calibrate once using (tobacco) in kind.
Summary of the invention
In some respects, a kind of method for monitoring tobacco cutting production line epithelium belt scale accuracy is provided, including with
Lower step：
History process before climbing up weighing belt based on tobacco calculates the theoretical weight N of tobacco；
Compare theoretical weight N and tobacco weighed on weighing belt obtained by apparent weight M, when N and M difference w exceed threshold interval
When, weighing belt inaccuracy is determined, conversely, then determining that weighing belt is accurate.
In some embodiments, weighing belt is the weighing belt between kth time+1 treatment process for the treatment of process and kth.
In some embodiments, kth time processing is loosening and gaining moisture processing, Ordering and casing processing, dries silk processing or flavoring
Processing.In kth time processing, additional material can be applied to tobacco, lead to tobacco weight change.In kth time processing, tobacco
Mass loss is had, tobacco weight change is caused.
In some embodiments, k is positive integer.K is 1,2,3 or 4.For example, loosening and gaining moisture processing is the 1st processing,
Ordering and casing processing is the 2nd processing, and drying silk processing is the 3rd processing, and flavoring processing is the 4th processing.
In some embodiments, the tobacco after kth time processing is calculated on tobacco cutting production line based on following formula
Theoretical weight Nk,
αkIt is tobacco moisture percentage after kth time is handled.
In some embodiments, the tobacco dry weight after kth time processing is calculated based on following formula：
Tobacco dry weight=(1-a after kth time processingk-1)Mk-1+Pk-Qk；
αk-1It is the moisture content of tobacco before kth time is handled；
Mk-1Be tobacco before kth time is handled weight (such as tobacco weighed on weighing belt obtained by apparent weight Mk-1, such as
Between k-1 treatment process and kth time treatment process tobacco weighed on weighing belt obtained by apparent weight, Mk-1)；
PkIt is the dry weight of the additional material applied in kth time processing to tobacco；
QkIt is the empirical value of tobacco consumption in kth time processing.
In some embodiments, the method for monitoring tobacco cutting production line epithelium belt scale accuracy, further includes following step
Suddenly：
Measure the moisture content α of tobacco before kth time is handledk-1；
Measure the weight M of tobacco before kth time is handledk-1(such as the weight M of tobacco is weighed on weighing beltk-1, such as
The weight M of tobacco is weighed on weighing belt between k-1 treatment process and kth time treatment processk-1)；
Measure tobacco moisture percentage α after kth time is handledk；
Obtain the dry weight P of the additional material applied in kth time processing to tobaccok；
Obtain the empirical value Q of tobacco consumption in kth time processingk。
In some embodiments, it is counted, is asked by tobacco consumption in the kth time processing to multiple history batches
Average value obtains empirical value Qk。
In some embodiments, with the difference w of normal distyribution function fitting theory weight N and M, when w exceeds threshold zone
Between when, determine weighing belt inaccuracy, conversely, then determining that weighing belt is accurate.
In some embodiments, threshold interval is set as [μ-x σ, μ+y σ], and μ and σ are the phase of normal distyribution function respectively
Prestige value and standard deviation, x and y are natural number.
In some embodiments, the tobacco cutting production line includes any one of following device (or process)：It is loose to return
Damp device (or process), dries silk device (or process) and perfuming device (or process) at Ordering and casing device (or process).
In some embodiments, loosening and gaining moisture device is used to receive raw material tobacco, and applies feed liquid on the tobacco
And steam；
In some embodiments, Ordering and casing device treated for receiving loosening and gaining moisture tobacco, and to the cigarette
Apply feed liquid and steam on grass；
In some embodiments, dry silk device for receiving Ordering and casing device treated tobacco, and to the tobacco
Carry out baking processing；
In some embodiments, perfuming device dries silk device treated tobacco for receiving, and applies on the tobacco
Perfuming.
In some embodiments, the weighing belt includes the first weighing belt, and first weighing belt is set to tobacco cutting
Before the loosening and gaining moisture device (process) of production line, for weighing the weight of the tobacco material wait enter loosening and gaining moisture device, comment
The method for estimating the first weighing belt accuracy includes the following steps：
Measure the weight x of the tobacco wait enter loosening and gaining moisture device1；
The theoretical weight N before tobacco climbs up the first electronic belt scale is calculated based on following formula1,
N1=x1；
Compare theoretical weight N1Apparent weight M obtained by being weighed on the first electronic scale with tobacco1, work as N1And M1Difference w1Beyond threshold
When being worth section, weighing belt inaccuracy is determined, conversely, then determining that weighing belt is accurate.
In some embodiments, the weighing belt includes the second weighing belt, and second weighing belt is set to tobacco cutting
Between the loosening and gaining moisture device (process) and Ordering and casing device (process) of production line, for weighing wait enter Ordering and casing device
Tobacco material weight, assessment the second weighing belt accuracy method include the following steps：
Measure the moisture content α of the tobacco wait enter loosening and gaining moisture device1；
Measure the weight x of the tobacco wait enter loosening and gaining moisture device1；
Obtain loose pieces feed liquid weight x2；
Obtain loose pieces feed liquid dry matter coefficient x3；
Measure the moisture content α of the tobacco wait enter Ordering and casing device2；
Obtain the empirical value y of the tobacco consumption of loosening and gaining moisture device1；
The theoretical weight N before tobacco climbs up the second electronic belt scale is calculated based on following formula2,
Compare theoretical weight N2Apparent weight M obtained by being weighed on the second weighing belt with tobacco2, work as N2And M2Difference w2Beyond threshold
When being worth section, weighing belt inaccuracy is determined, conversely, then determining that weighing belt is accurate.
In some embodiments, the tobacco cutting production line further includes third weighing belt, and the third weighing belt is set
Between the Ordering and casing device (process) and baking silk device (process) of tobacco cutting production line, silk dress is dried wait enter for weighing
The method of the weight for the tobacco material set, assessment third weighing belt accuracy includes the following steps：
Measure the weight M of the tobacco wait enter Ordering and casing device2(such as obtain tobacco and weigh gained through the second weighing belt
Apparent weight M2)；
Measure the moisture content α of the tobacco wait enter Ordering and casing device2；
Obtain leaves moisting feed liquid weight x6；
Obtain the dry matter coefficient x of leaves moisting feed liquid7；
Measure the moisture content α wait enter the tobacco for drying silk device3；
Obtain the empirical value y of the tobacco consumption of Ordering and casing device2；
The theoretical weight N before tobacco climbs up third electronic belt scale is calculated based on following formula3,
Compare theoretical weight N3Apparent weight M obtained by being weighed on third weighing belt with tobacco3, work as N3And M3Difference w3Beyond threshold
When being worth section, weighing belt inaccuracy is determined, conversely, then determining that weighing belt is accurate.
In some embodiments, the weighing belt includes the 4th weighing belt, and the 4th weighing belt is set to tobacco cutting
Between the baking silk device (process) and perfuming device (process) of production line, for weighing the tobacco material wait enter perfuming device
The method of weight, the 4th weighing belt accuracy of assessment includes the following steps：
Measure the weight M wait enter the tobacco for drying silk device3(such as obtain tobacco and weigh gained through third electronic belt scale
Apparent weight M3)；
Measure the moisture content α wait enter the tobacco for drying silk device3；
Measure the moisture content α of the tobacco wait enter perfuming device4；
Obtain the empirical value y for drying the tobacco consumption of silk device3。
The theoretical weight N before tobacco climbs up the 4th electronic belt scale is calculated based on following formula4,
Compare theoretical weight N4Apparent weight M obtained by being weighed on the 4th weighing belt with tobacco4, work as N4And M4Difference w4Beyond threshold
When being worth section, weighing belt inaccuracy is determined, conversely, then determining that weighing belt is accurate.
In some embodiments, monitor weighing belt accuracy method, further include,
When determining weighing belt inaccuracy, alarm.
In some respects, a kind of tobacco cutting production line epithelium belt scale accuracy evaluation device is provided, including：
Computing module, for calculating the theoretical weight N of tobacco based on the history process before tobacco epithelium belt scale；
Comparison module, weigh for comparing theoretical weight N and tobacco on weighing belt obtained by apparent weight M, as the difference w of N and M
When beyond threshold interval, weighing belt inaccuracy is determined, conversely, then determining that weighing belt is accurate.
In some embodiments, the tobacco cutting production line includes loosening and gaining moisture device, Ordering and casing device, dries silk
Device and perfuming device；
Loosening and gaining moisture device is used to receive raw material tobacco, and applies feed liquid and steam on the tobacco；
Ordering and casing device treated for receiving loosening and gaining moisture tobacco, and apply feed liquid and steam on the tobacco；
Dry silk device for receiving Ordering and casing device treated tobacco, and baking processing is carried out to the tobacco；
Perfuming device dries silk device treated tobacco for receiving, and applies fragrance on the tobacco.
In some embodiments, weighing belt includes the first weighing belt, and the first weighing belt is set to tobacco cutting production line
Before loosening and gaining moisture device, for weighing the weight of the tobacco material wait enter loosening and gaining moisture device.
In some embodiments, weighing belt includes the second weighing belt, and second weighing belt is produced set on tobacco cutting
Between the loosening and gaining moisture device and Ordering and casing device of line, for weighing the weight of the tobacco material wait enter Ordering and casing device
Amount.
In some embodiments, weighing belt includes third weighing belt, and the third weighing belt is produced set on tobacco cutting
Between the Ordering and casing device and baking silk device of line, for weighing the weight wait enter the tobacco material for drying silk device.
In some embodiments, weighing belt includes the 4th weighing belt, and the 4th weighing belt is produced set on tobacco cutting
Between the baking silk device and perfuming device of line, for weighing the weight of the tobacco material wait enter perfuming device.
In some embodiments, it is equipped with the first moisture content between loosening and gaining moisture device and Ordering and casing device and detects mould
Block, for detecting the moisture content of the tobacco wait enter Ordering and casing device.
In some embodiments, it is equipped with the second moisture content detection module between Ordering and casing device and baking silk device, used
In the moisture content for detecting the tobacco wait enter baking silk device.
In some embodiments, it dries and is equipped with third moisture content detection module between silk device and perfuming device, for examining
Survey the moisture content of the tobacco wait enter perfuming device.
In some embodiments, tobacco cutting production line epithelium belt scale accuracy evaluation device further includes,
Alarm module, for determining weighing belt inaccuracy alarm in comparison module.
In some respects, provide it is a kind of for assessing the device of tobacco cutting production line epithelium belt scale accuracy, including：
Memory；And
It is coupled to the processor of the memory, the processor is configured to the finger based on storage in the memory
It enables, executes such as the described in any item methods of the disclosure.
In some respects, a kind of system for assessing tobacco cutting production line epithelium belt scale accuracy, including this are provided
Described in any item devices are disclosed.
In some embodiments, weighing belt is belted electronic balance.
In some embodiments, the disclosure is used to monitor the method for tobacco cutting production line epithelium belt scale accuracy in life
Produce whole to weighing belt holding monitoring, the report in time (such as when judgement weighing belt inaccuracy) when occurring abnormal, to make to grasp
Making personnel can find that measurement is abnormal in time, debugging.
In the present invention, unless otherwise stated, Science and Technology noun used herein has art technology
The normally understood meaning of personnel institute.Also, laboratory operation step involved in herein is to be widely used in corresponding field
Conventional steps.Meanwhile for a better understanding of the present invention, the definition and explanation of relational language is provided below.
Beneficial effect
Traditional monthly test/annual test method real-time is poor, is occurring often being not easy to find in time when measurement is abnormal, and
And there is likely to be differences using this calibration method and actual production, it is accurate when often calibrating, and when actual production
There is the case where measured deviation.
Method, device/system that method of disclosure is used to monitor tobacco cutting production line epithelium belt scale accuracy can be right
The weighing belt of tobacco cutting production line carries out the tracking of overall process, can notify at once when occurring abnormal, to make operator
Member can have found that measurement is abnormal in time, debugging.
Method of disclosure is high to the assessment accuracy of weighing belt accuracy, and error is small.
Detailed description of the invention
Fig. 1 is the schematic diagram for monitoring an embodiment of the method for tobacco cutting production line weighing belt accuracy；
Fig. 2 is the schematic diagram for monitoring an embodiment of the device of tobacco cutting production line weighing belt accuracy；
Fig. 3 is the schematic diagram for monitoring the another embodiment of the device of tobacco cutting production line weighing belt accuracy；
Fig. 4 shows the tobacco cutting production line being equipped with for monitoring tobacco cutting production line epithelium belt scale accuracy；
Fig. 5 shows the flow chart of the method for the second weighing belt accuracy of assessment；
Fig. 6 shows the flow chart of the method for assessment third weighing belt accuracy；
Fig. 7 shows the flow chart of the method for the 4th weighing belt accuracy of assessment.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Below
Description only actually at least one exemplary embodiment be it is illustrative, never as to the present invention and its application or make
Any restrictions.Based on the embodiments of the present invention, those of ordinary skill in the art are not making creative work premise
Lower acquired every other embodiment, shall fall within the protection scope of the present invention.
Unless specifically stated otherwise, positioned opposite, the digital table of the component and step that otherwise illustrate in these embodiments
It is not limited the scope of the invention up to formula and numerical value.
Simultaneously, it should be appreciated that for ease of description, the size of various pieces shown in attached drawing is not according to reality
Proportionate relationship draw.
Technology, method and apparatus known to person of ordinary skill in the relevant may be not discussed in detail, but suitable
In the case of, the technology, method and apparatus should be considered as authorizing part of specification.
It is shown here and discuss all examples in, any occurrence should be construed as merely illustratively, without
It is as limitation.Therefore, the other examples of exemplary embodiment can have different values.
It should be noted that：Similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, then in subsequent attached drawing does not need that it is further discussed.
Fig. 1 is the schematic diagram for monitoring an embodiment of the method for tobacco cutting production line weighing belt accuracy.It is optional
The method on ground, the present embodiment can be executed by the device for monitoring tobacco cutting production line weighing belt accuracy.
Step 101, the history process before weighing belt is climbed up based on tobacco calculates the theoretical weight N of tobacco.
Optionally, a tobacco cutting production line includes loosening and gaining moisture device, Ordering and casing device, dries silk device and flavoring
Device；Loosening and gaining moisture device is used to receive raw material tobacco, and applies feed liquid and steam on the tobacco；Ordering and casing device is used
In receiving loosening and gaining moisture treated tobacco, and apply feed liquid and steam on the tobacco；Silk device is dried to add for receiving leaves moisting
Expect device treated tobacco, and baking processing is carried out to the tobacco；Perfuming device dries silk device treated cigarette for receiving
Grass, and apply fragrance on the tobacco.
Optionally, weighing belt includes the first weighing belt, and the loosening and gaining moisture that the first weighing belt is set to tobacco cutting production line fills
Before setting, for weighing the weight of the tobacco material wait enter loosening and gaining moisture device.
Optionally, weighing belt includes the second weighing belt, and second weighing belt is set to the loose of tobacco cutting production line and returns
Between damp device and Ordering and casing device, for weighing the weight of the tobacco material wait enter Ordering and casing device.
Optionally, tobacco cutting production line further includes third weighing belt, and the third weighing belt is produced set on tobacco cutting
Between the Ordering and casing device and baking silk device of line, for weighing the weight wait enter the tobacco material for drying silk device.
Optionally, weighing belt includes the 4th weighing belt, and the baking silk that the 4th weighing belt is set to tobacco cutting production line fills
It sets between perfuming device, for weighing the weight of the tobacco material wait enter perfuming device.
In one embodiment, the weighing belt includes the first weighing belt, and first weighing belt is set to tobacco cutting
Before the loosening and gaining moisture device of production line, for weighing the weight of the tobacco material wait enter loosening and gaining moisture device, assessment first
The method of weighing belt accuracy includes the following steps：
Measure the weight x of the tobacco wait enter loosening and gaining moisture device1；
The theoretical weight N before tobacco climbs up the first electronic belt scale is calculated based on following formula1,
N1=x1；
Compare theoretical weight N1Apparent weight M obtained by being weighed on the first electronic scale with tobacco1, work as N1And M1Difference w1Beyond threshold
When being worth section, weighing belt inaccuracy is determined, conversely, then determining that weighing belt is accurate.
Step 102, compare theoretical weight N and tobacco weighed on weighing belt obtained by apparent weight M, when the difference w of N and M exceeds
When threshold interval, weighing belt inaccuracy is determined, conversely, then determining that weighing belt is accurate.
Optionally, the empirical value y of the tobacco consumption of loosening and gaining moisture device1It is by being returned to the loose of multiple history batches
The supplies consumption value of damp device is counted, acquisition of averaging.
Optionally, the empirical value y of the tobacco consumption of Ordering and casing device2It is to be added by the leaves moisting to multiple history batches
Expect that the empirical value of the tobacco consumption of device is counted, acquisition of averaging.
Optionally, the empirical value y of the tobacco consumption of silk device is dried3It is by the baking silk device to multiple history batches
The empirical value of tobacco consumption is counted, acquisition of averaging.
Optionally, the method for monitoring tobacco cutting production line weighing belt accuracy further includes any one of following：
Detect the moisture content of the tobacco wait enter Ordering and casing device.
Detect the moisture content wait enter the tobacco for drying silk device.
Detect the moisture content of the tobacco wait enter perfuming device.
Optionally, the difference w of the apparent weight M of weighing is deserved to be called in battery with normal distyribution function fitting theory weight N and tobacco,
When w exceeds threshold interval, weighing belt inaccuracy is determined, conversely, then determining that weighing belt is accurate.
Optionally, compare theoretical weight N1Apparent weight M obtained by being weighed on the first weighing belt with tobacco1, work as N1And M1Difference
w1When beyond threshold interval, weighing belt inaccuracy is determined, conversely, then determining that weighing belt is accurate.
Optionally, compare theoretical weight N2Apparent weight M obtained by being weighed on the second weighing belt with tobacco2, work as N2And M2Difference
w2When beyond threshold interval, weighing belt inaccuracy is determined, conversely, then determining that weighing belt is accurate.
Optionally, compare theoretical weight N3With tobacco apparent weight M obtained by the weighing of third weighing belt3, work as N3And M3Difference w3
When beyond threshold interval, weighing belt inaccuracy is determined, conversely, then determining that weighing belt is accurate.
Optionally, compare theoretical weight N4With tobacco apparent weight M obtained by the weighing of the 4th weighing belt4, work as N4And M4Difference w4
When beyond threshold interval, weighing belt inaccuracy is determined, conversely, then determining that weighing belt is accurate.
Fig. 4 shows the tobacco cutting production line being equipped with for monitoring tobacco cutting production line epithelium belt scale accuracy,
Including the electronics loosening and gaining moisture device-premix cabinet-Ordering and casing device-leaf storing cabinet-filament cutter-baking silk connected in the following order
Machine-mixes silk cabinet-Perfuming machine-wire-storing cabinet, by tobacco cutting production line operation order, is equipped with weighing belt 1 before loosening and gaining moisture device,
It is equipped with weighing belt 2 between premix cabinet and Ordering and casing device, weighing belt 3 is equipped between filament cutter and cut-tobacco drier, mixes silk cabinet and adds
Weighing belt 4 is equipped between fragrant machine.
Optionally, it can be equipped with Moisture Meter between loosening and gaining moisture device and premix cabinet, premix between cabinet and Ordering and casing device
It can be equipped with Moisture Meter, Moisture Meter can be equipped between Ordering and casing device and leaf storing cabinet, water can be equipped between filament cutter and cut-tobacco drier
Divide instrument, Moisture Meter can be equipped between cut-tobacco drier and mixed silk cabinet, Moisture Meter can be equipped with by mixing between silk cabinet and Perfuming machine, the storage of flavoring opportunity
Moisture Meter can be equipped between silk cabinet.
Fig. 5 shows the flow chart of the method for the second weighing belt accuracy of assessment.In one embodiment, the weighing belt
Including the second weighing belt, second weighing belt be set to tobacco cutting production line loosening and gaining moisture device and Ordering and casing device it
Between, for weighing the weight of the tobacco material wait enter Ordering and casing device, the method for the second weighing belt accuracy of assessment includes
Following steps：
Step 501 measures the moisture content α of the tobacco wait enter loosening and gaining moisture device1；
Step 502 measures the weight x of the tobacco wait enter loosening and gaining moisture device1；
Step 503 obtains loose pieces feed liquid weight x2；
Step 504 obtains loose pieces feed liquid dry matter coefficient x3；
Step 505 measures the moisture content α of the tobacco wait enter Ordering and casing device2；
Step 506 obtains the empirical value y of the tobacco consumption of loosening and gaining moisture device1；
Step 507 calculates the theoretical weight N before tobacco climbs up the second electronic belt scale based on following formula2,
Step 508 compares theoretical weight N2Apparent weight M obtained by being weighed on the second weighing belt with tobacco2, work as N2And M2Difference
w2When beyond threshold interval, weighing belt inaccuracy is determined, conversely, then determining that weighing belt is accurate.
Fig. 6 shows the flow chart of the method for assessment third weighing belt accuracy.In some embodiments, tobacco cutting is raw
Producing line further includes third weighing belt, and the third weighing belt is set to the Ordering and casing device of tobacco cutting production line and dries silk device
Between, for weigh wait enter dry silk device tobacco material weight, assessment third weighing belt accuracy method include with
Lower step：
Step 601 obtains tobacco and weighs gained apparent weight M through the second weighing belt2；
Step 602 measures the moisture content α of the tobacco wait enter Ordering and casing device2；
Step 603 obtains leaves moisting feed liquid weight x6；
The dry matter coefficient x of step 604 acquisition leaves moisting feed liquid7；
Step 605 measures the moisture content α wait enter the tobacco for drying silk device3；
Step 606 obtains the empirical value y of the tobacco consumption of Ordering and casing device2；
Step 607 calculates the theory weight before tobacco climbs up third electronic belt scale based on following formula
Measure N3,
Step 608 compares theoretical weight N3Apparent weight M obtained by being weighed on third weighing belt with tobacco3, work as N3And M3Difference
w3When beyond threshold interval, weighing belt inaccuracy is determined, conversely, then determining that weighing belt is accurate.
Fig. 7 shows the flow chart of the method for assessment third weighing belt accuracy.In some embodiments, weighing belt includes
4th weighing belt, the 4th weighing belt be set to tobacco cutting production line baking silk device and perfuming device between, for weigh into
Enter the weight of the tobacco material of perfuming device, the method for the 4th weighing belt accuracy of assessment includes the following steps：
Step 701 obtains tobacco and weighs gained apparent weight M through third electronic belt scale3；
Step 702 measures the moisture content α wait enter the tobacco for drying silk device3；
Step 703 measures the moisture content α of the tobacco wait enter perfuming device4；
Step 704 obtains the empirical value y for drying the tobacco consumption of silk device3；
Step 705 calculates the theoretical weight N before tobacco climbs up the 4th electronic belt scale based on following formula4,
Step 706 compares theoretical weight N4Apparent weight M obtained by being weighed on the 4th weighing belt with tobacco4, work as N4And M4Difference
w4When beyond threshold interval, weighing belt inaccuracy is determined, conversely, then determining that weighing belt is accurate.
Optionally, threshold interval is set as [μ-x σ, μ+y σ], and x and y are each independently 1,2 or 3.μ and σ is just respectively
The expected value and standard deviation of state distribution function.
Optionally, with normal distyribution function fitting theory weight N1Apparent weight M obtained by being weighed on the first weighing belt with tobacco1
Difference w1, threshold interval is set as [+3 σ of μ -3 σ, μ], works as k1When beyond threshold interval, weighing belt inaccuracy is determined, conversely, then
Determine that weighing belt is accurate.
Optionally, with normal distyribution function fitting theory weight N2Apparent weight M obtained by being weighed on the second weighing belt with tobacco2
Difference w2, threshold interval is set as [+3 σ of μ -3 σ, μ], works as k2When beyond threshold interval, weighing belt inaccuracy is determined, conversely, then
Determine that weighing belt is accurate.
Optionally, with normal distyribution function fitting theory weight N3Apparent weight M obtained by being weighed on third weighing belt with tobacco3
Difference w3, threshold interval is set as [+3 σ of μ -3 σ, μ], works as k3When beyond threshold interval, weighing belt inaccuracy is determined, conversely, then
Determine that weighing belt is accurate.
Optionally, with normal distyribution function fitting theory weight N4Apparent weight M obtained by being weighed on the 4th weighing belt with tobacco4
Difference w4, threshold interval is set as [+3 σ of μ -3 σ, μ], works as k4When beyond threshold interval, weighing belt inaccuracy is determined, conversely, then
Determine that weighing belt is accurate.
Fig. 2 is the signal of an embodiment of device of the present invention for monitoring tobacco cutting production line weighing belt accuracy
Figure.As shown in Fig. 2, the device for monitoring tobacco cutting production line weighing belt accuracy includes：
Computing module 201, for calculating the theoretical weight N of tobacco based on the history process before tobacco epithelium belt scale；
Comparison module 202, compare theoretical weight N and tobacco weighed on weighing belt obtained by apparent weight M, as the difference w of N and M
When beyond threshold interval, weighing belt inaccuracy is determined, conversely, then determining that weighing belt is accurate.
Optionally, the comparison module is used for the difference w of normal distyribution function fitting theory weight N and M (such as repeatedly
The difference w) for measuring the multiple N and M that obtain determines weighing belt inaccuracy, conversely, then determining belt when w exceeds threshold interval
Scale is accurate.
Optionally, threshold interval is set as [μ-x σ, μ+y σ], and x and y are each independently 1,2 or 3.μ and σ is just respectively
The expected value and standard deviation of state distribution function.
Fig. 3 is the signal of the another embodiment of device of the present invention for monitoring tobacco cutting production line weighing belt accuracy
Figure.As shown in figure 3, monitoring device may include memory 1001 and processor 1002.Wherein：
For storing instruction, processor 1002 is coupled to memory 1001 to memory 1001, and processor 1002 is configured as
The method that any embodiment is related to as shown in figure 1 is realized based on the instruction execution that memory 1001 stores.
In addition, the monitoring device further includes communication interface 1003, for carrying out information exchange with other devices.Meanwhile it should
Device further includes bus 1004, and processor 1002, communication interface 1003 and memory 1001 are completed mutually by bus 1004
Between communication.
Wherein, the memory 1001 in Fig. 3 may include high speed RAM memory, can also further include nonvolatile memory
(non-volatile memory), for example, at least a magnetic disk storage.Memory 1001 is also possible to memory array.It deposits
Reservoir 1001 is also possible to by piecemeal, and block can be combined into virtual volume by certain rule.
In addition, the processor 1002 in Fig. 3 can be a central processor CPU, or it can be specific integrated circuit
ASIC (Application Specific Integrated Circuit), or be arranged to implement the embodiment of the present invention
One or more integrated circuits.
It should be understood by those skilled in the art that, the embodiment of the present invention can provide as method, apparatus or computer program
Product.Therefore, complete hardware embodiment, complete software embodiment or reality combining software and hardware aspects can be used in the present invention
Apply the form of example.Moreover, it wherein includes the computer of computer usable program code that the present invention, which can be used in one or more,
The calculating implemented in non-transient storage medium (including but not limited to magnetic disk storage, CD-ROM, optical memory etc.) can be used
The form of machine program product.
The present invention be referring to according to the method for the embodiment of the present invention, the process of device (device) and computer program product
Figure and/or block diagram describe.It should be understood that every one stream in flowchart and/or the block diagram can be realized by computer program instructions
The combination of process and/or box in journey and/or box and flowchart and/or the block diagram.It can provide these computer programs
Instruct the processor of general purpose computer, special purpose computer, Embedded Processor or other programmable data processing units to produce
A raw machine, so that being generated by the instruction that computer or the processor of other programmable data processing units execute for real
The device for the function of being specified in present one or more flows of the flowchart and/or one or more blocks of the block diagram.
These computer program instructions, which may also be stored in, is able to guide computer or other programmable data processing units with spy
Determine in the computer-readable memory that mode works, so that it includes referring to that instruction stored in the computer readable memory, which generates,
Enable the manufacture of device, the command device realize in one box of one or more flows of the flowchart and/or block diagram or
The function of being specified in multiple boxes.
These computer program instructions can also be loaded into computer or other programmable data processing units, so that counting
Series of operation steps are executed on calculation machine or other programmable devices to generate computer implemented processing, thus in computer or
The instruction executed on other programmable devices is provided for realizing in one or more flows of the flowchart and/or block diagram one
The step of function of being specified in a box or multiple boxes.
Description of the invention is given for the purpose of illustration and description, and is not exhaustively or will be of the invention
It is limited to disclosed form.Many modifications and variations are obvious for the ordinary skill in the art.It selects and retouches
It states embodiment and is to more preferably illustrate the principle of the present invention and practical application, and those skilled in the art is enable to manage
The solution present invention is to design various embodiments suitable for specific applications with various modifications.
Although a specific embodiment of the invention has obtained detailed description, it will be appreciated by those skilled in the art that：Root
According to all introductions having disclosed, details can be carry out various modifications and be changed, and these change in guarantor of the invention
Within the scope of shield.Full scope of the invention is given by the appended claims and any equivalents thereof.
Claims (20)
1. a kind of method for monitoring tobacco cutting production line epithelium belt scale accuracy, includes the following steps：
(1) the history process before climbing up weighing belt based on tobacco calculates the theoretical weight N of tobacco；
(2) compare theoretical weight N and tobacco weighed on weighing belt obtained by apparent weight M, when N and M difference w exceed threshold interval
When, weighing belt inaccuracy is determined, conversely, then determining that weighing belt is accurate.
2. according to the method described in claim 1, being based on following formula calculating tobacco cutting production line the cigarette after kth time processing
The theoretical weight N of grassk,
αkIt is tobacco moisture percentage after kth time is handled.
3. according to the method described in claim 2, wherein, calculating the tobacco dry weight after kth time processing based on following formula：
Tobacco dry weight=(1- α after kth time processingk-1)Mk-1+Pk-Qk；
αk-1It is the moisture content of tobacco before kth time is handled；
Mk-1It is the weight of tobacco before kth time is handled；
PkIt is the dry weight of the additional material applied in kth time processing to tobacco；
QkIt is the empirical value of tobacco consumption in kth time processing.
4. according to the method described in claim 3, further comprising the steps of：
Measure tobacco moisture percentage α after kth time is handledk；
Measure the moisture content α of tobacco before kth time is handledk-1；
Measure the weight M of tobacco before kth time is handledk-1；
Obtain the dry weight P of the additional material applied in kth time processing to tobaccok；
Obtain the empirical value Q of tobacco consumption in kth time processingk。
5. according to the method described in claim 1, with the difference w of normal distyribution function fitting theory weight N and M, when w exceeds threshold
When being worth section, weighing belt inaccuracy is determined, conversely, then determining that weighing belt is accurate.
6. μ and σ are normal distribution letter respectively according to the method described in claim 5, threshold interval is set as [μ-x σ, μ+y σ]
Several expected value and standard deviations, x and y are natural number.
7. according to the method described in claim 1, the tobacco cutting production line includes any one of following：Loosening and gaining moisture device,
Ordering and casing device dries silk device and perfuming device, wherein
Loosening and gaining moisture device is used to receive raw material tobacco, and applies feed liquid and steam on the tobacco；
Ordering and casing device treated for receiving loosening and gaining moisture tobacco, and apply feed liquid and steam on the tobacco；
Dry silk device for receiving Ordering and casing device treated tobacco, and baking processing is carried out to the tobacco；
Perfuming device dries silk device treated tobacco for receiving, and applies fragrance on the tobacco.
8. first weighing belt is set to tobacco according to the method described in claim 1, the weighing belt includes the first weighing belt
Before the loosening and gaining moisture device of primary processing line, for weighing the weight of the tobacco material wait enter loosening and gaining moisture device, assessment
The method of first weighing belt accuracy includes the following steps：
Measure the weight x of the tobacco wait enter loosening and gaining moisture device1；
The theoretical weight N before tobacco climbs up the first electronic belt scale is calculated based on following formula1,
N1=x1；
Compare theoretical weight N1Apparent weight M obtained by being weighed on the first electronic scale with tobacco1, work as N1And M1Difference w1Beyond threshold zone
Between when, determine weighing belt inaccuracy, conversely, then determining that weighing belt is accurate.
9. second weighing belt is set to tobacco according to the method described in claim 1, the weighing belt includes the second weighing belt
Between the loosening and gaining moisture device and Ordering and casing device of primary processing line, for weighing the tobacco original wait enter Ordering and casing device
The method of the weight of material, the second weighing belt accuracy of assessment includes the following steps：
Measure the moisture content α of the tobacco wait enter loosening and gaining moisture device1；
Measure the weight x of the tobacco wait enter loosening and gaining moisture device1；
Obtain loose pieces feed liquid weight x2；
Obtain loose pieces feed liquid dry matter coefficient x3；
Measure the moisture content α of the tobacco wait enter Ordering and casing device2；
Obtain the empirical value y of the tobacco consumption of loosening and gaining moisture device1；
The theoretical weight N before tobacco climbs up the second electronic belt scale is calculated based on following formula2,
Compare theoretical weight N2Apparent weight M obtained by being weighed on the second weighing belt with tobacco2, work as N2And M2Difference w2Beyond threshold zone
Between when, determine weighing belt inaccuracy, conversely, then determining that weighing belt is accurate.
10. according to the method described in claim 1, the tobacco cutting production line further includes third weighing belt, the third skin
Belt scale is set to the Ordering and casing device of tobacco cutting production line and dries between silk device, for weighing wait enter the cigarette for drying silk device
The method of the weight of grassland material, assessment third weighing belt accuracy includes the following steps：
Measure the weight M of the tobacco wait enter Ordering and casing device2；
Measure the moisture content α of the tobacco wait enter Ordering and casing device2；
Obtain leaves moisting feed liquid weight x6；
Obtain the dry matter coefficient x of leaves moisting feed liquid7；
Measure the moisture content α wait enter the tobacco for drying silk device3；
Obtain the empirical value y of the tobacco consumption of Ordering and casing device2；
The theoretical weight N before tobacco climbs up third electronic belt scale is calculated based on following formula3,
Compare theoretical weight N3Apparent weight M obtained by being weighed on third weighing belt with tobacco3, work as N3And M3Difference w3Beyond threshold zone
Between when, determine weighing belt inaccuracy, conversely, then determining that weighing belt is accurate.
11. the 4th weighing belt is set to cigarette according to the method described in claim 1, the weighing belt includes the 4th weighing belt
Between the baking silk device and perfuming device of careless primary processing line, for weighing the weight of the tobacco material wait enter perfuming device,
The method for assessing the 4th weighing belt accuracy includes the following steps：
Measure the weight M wait enter the tobacco for drying silk device3；
Measure the moisture content α wait enter the tobacco for drying silk device3；
Measure the moisture content α of the tobacco wait enter perfuming device4；
Obtain the empirical value y for drying the tobacco consumption of silk device3。
The theoretical weight N before tobacco climbs up the 4th electronic belt scale is calculated based on following formula4,
Compare theoretical weight N4Apparent weight M obtained by being weighed on the 4th weighing belt with tobacco4, work as N4And M4Difference w4Beyond threshold zone
Between when, determine weighing belt inaccuracy, conversely, then determining that weighing belt is accurate.
12. according to the method described in claim 1, further include,
When determining weighing belt inaccuracy, alarm.
13. a kind of tobacco cutting production line epithelium belt scale accuracy evaluation device, including：
Computing module, for calculating the theoretical weight N of tobacco based on the history process before tobacco epithelium belt scale；
Comparison module, weigh for comparing theoretical weight N and tobacco on weighing belt obtained by apparent weight M, when the difference w of N and M exceeds
When threshold interval, weighing belt inaccuracy is determined, conversely, then determining that weighing belt is accurate.
14. device according to claim 13, the computing module is used to calculate tobacco cutting production based on following formula
On line after kth time processing tobacco theoretical weight Nk,
αkIt is tobacco moisture percentage after kth time is handled.
15. device according to claim 13, the tobacco cutting production line includes any one of following：Loosening and gaining moisture dress
It sets, Ordering and casing device, dry silk device and perfuming device, wherein
Loosening and gaining moisture device is used to receive raw material tobacco, and applies feed liquid and steam on the tobacco；
Ordering and casing device treated for receiving loosening and gaining moisture tobacco, and apply feed liquid and steam on the tobacco；
Dry silk device for receiving Ordering and casing device treated tobacco, and baking processing is carried out to the tobacco；
Perfuming device dries silk device treated tobacco for receiving, and applies fragrance on the tobacco.
16. device according to claim 13, it is characterised in that any one of following：
Weighing belt includes the first weighing belt, and the first weighing belt is set to before the loosening and gaining moisture device of tobacco cutting production line, is used for
Weigh the weight of the tobacco material wait enter loosening and gaining moisture device.
Weighing belt includes the second weighing belt, and second weighing belt is set to the loosening and gaining moisture device and profit of tobacco cutting production line
Between leaf feeding device, for weighing the weight of the tobacco material wait enter Ordering and casing device.
Tobacco cutting production line further includes third weighing belt, and the leaves moisting that the third weighing belt is set to tobacco cutting production line adds
Expect device and dry between silk device, for weighing the weight wait enter the tobacco material for drying silk device.
Weighing belt includes the 4th weighing belt, and the 4th weighing belt is set to the baking silk device of tobacco cutting production line and flavoring fills
Between setting, for weighing the weight of the tobacco material wait enter perfuming device.
17. device according to claim 13, it is characterised in that any one of following：
The first moisture content detection module is equipped between loosening and gaining moisture device and Ordering and casing device, for detecting wait enter leaves moisting
The moisture content of the tobacco of feeding device.
It is equipped with the second moisture content detection module between Ordering and casing device and baking silk device, dries silk device wait enter for detecting
Tobacco moisture content.
It dries and is equipped with third moisture content detection module between silk device and perfuming device, for detecting the cigarette wait enter perfuming device
The moisture content of grass.
18. device according to claim 13, further includes,
Alarm module, for determining weighing belt inaccuracy alarm in comparison module.
19. a kind of for assessing the device of tobacco cutting production line epithelium belt scale accuracy, which is characterized in that including：
Memory；And
It is coupled to the processor of the memory, the processor is configured to the instruction based on storage in the memory,
Execute the method as described in any one of claim 1~12.
20. a kind of system for assessing tobacco cutting production line epithelium belt scale accuracy, including claim 13~19 are any
Device described in.
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