CN102342582A - Verification method, verification system and calculation processor for detection precision of scan detection head - Google Patents
Verification method, verification system and calculation processor for detection precision of scan detection head Download PDFInfo
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Abstract
The invention discloses a verification method, a verification system and a calculation processor for the detection precision of a scan detection head. The verification method for the detection precision of the scan detection head comprises the following steps: 1, acquiring a preset number of tobacco rods with target weight based on the scan detection head; 2, acquiring a capability index Cpk value of the scan detection head in the practical process through the preset number of the tobacco rods with target weight; 3, determining whether the detection precision of the scan detection head is qualified or not according to the Cpk value; and 4, calibrating the scan detection head when the detection precision of the scan detection head is not qualified. The detection precision of the scan detection head can be accurately determined in the invention, so the calibration of the scan detection head is realized.
Description
Technical field
The present invention relates to measurement technology, especially a kind of method of calibration of scanning detecting precision of detecting head and system, calculation processing apparatus.
Background technology
Violent day by day along with the cigarette market competition, cigarette market and consumer are more and more higher to the quality requirement of cigarette product, and the competition in cigarette market has developed into the competition of cigarette product quality.Cigarette weight seems particularly important as the important component part in the cigarette product quality.In cigarette machine, Cigarette Weight Control System mainly is made up of scanning detection head, Weight control unit and executing agency etc., and wherein, the accuracy of detection of scanning detection head directly has influence on the effect of Cigarette Weight Control and the accuracy that weight defective cigarette props up rejecting.Therefore, the accuracy of detection of scanning detection head is carried out on-line testing for guaranteeing that its work quality is with most important.
In realizing process of the present invention; The inventor finds; Existing cigarette machine only has been equipped with the target weight sampled functions, from the cigarette machine of online production, takes out the target weight cigarette and props up, but can't accurately judge the accuracy of detection of scanning detection head and realize the calibration to the scanning detection head in view of the above.
Summary of the invention
Embodiment of the invention technical problem to be solved is: a kind of method of calibration and system, calculation processing apparatus of scanning detecting precision of detecting head are provided, with the accuracy of detection of accurate judgement scanning detection head and realize the calibration to the scanning detection head in view of the above.
For solving the problems of the technologies described above, the method for calibration of a kind of scanning detecting precision of detecting head that the embodiment of the invention provides comprises:
The target weight cigarette that obtains predetermined number based on the scanning detection head props up;
Target weight cigarette by said predetermined number props up the real process Capability index Cpk value of obtaining said scanning detection head;
Whether the accuracy of detection of judging said scanning detection head according to said Cpk value is qualified;
When the accuracy of detection of said scanning detection head is defective, said scanning detection head is calibrated.
A kind of calculation processing apparatus that the embodiment of the invention provides comprises:
Receiver module is used for the actual weight value that receiving target weight cigarette props up;
First computing module is used for the actual weight value that the target weight cigarette according to predetermined number props up, and calculates the average weight value μ that the target weight cigarette props up;
Second computing module is used for actual weight value and said average weight value μ that the target weight cigarette according to predetermined number props up, calculates the weight standard deviations;
The 3rd calculates module, is used for the σ according to formula Cpk=(1-k) Cp=(1-k) T/6, obtains the Cpk value; Wherein, k is an irrelevance, k=2|M-μ |/T, M are the cigarette weight preset value, and T is the Measurement Allowance of scanning detecting precision of detecting head, T=T
0/ 2.6, T
0Allowable error scope preset value for cigarette Zhi Danchong;
Output module is used to export said Cpk value.
The check system of a kind of scanning detecting precision of detecting head that the embodiment of the invention provides comprises:
Sampling equipment is used for gathering the density signal that current cigarette props up from cigarette machine scanning detection head, calculates current cigarette weight according to this density signal; When said current cigarette weight equates with target weight, control the rejecting door of said cigarette machine, current cigarette Zhi Zuowei target weight cigarette Zhi Jinhang is rejected sampling, prop up up to the target weight cigarette of rejecting the sampling predetermined number;
Measurement device is used for respectively the target weight cigarette Zhi Jinhang actual weight of said sampling equipment sampling is measured, and obtains the actual weight value that the target weight cigarette of predetermined number props up;
Calculation processing apparatus, the actual weight value that the target weight cigarette of the predetermined number that is used for obtaining according to said measurement device props up calculates the average weight value μ that the target weight cigarette props up; Actual weight value and said average weight value μ according to the target weight cigarette of predetermined number props up calculate the weight standard deviations; According to formula Cpk=(1-k) Cp=(1-k) T/6 σ, obtain Cpk value and output; Wherein, k is an irrelevance, k=2|M-μ |/T, M are the cigarette weight preset value, and T is the Measurement Allowance of scanning detecting precision of detecting head, T=T
0/ 2.6, T
0Allowable error scope preset value for cigarette Zhi Danchong.
The method of calibration of the scanning detecting precision of detecting head that provides based on the above embodiment of the present invention and system, calculation processing apparatus; Can prop up based on the target weight cigarette that the scanning detection head obtains predetermined number; And obtain in view of the above scanning detection head real process Capability index Cpk value; Come the accuracy of detection of quantitative judgement scanning detection head by the Cpk value; And when the accuracy of detection of scanning detection head is defective; It is calibrated; Compared with prior art; Realized the quantitative judgement of scanning detecting precision of detecting head height and realized calibration in view of the above the scanning detection head; Thereby guarantee that the scanning detection head is operated in eligible state; Guarantee the normal operation of Cigarette Weight Control System, guarantee that cigarette props up the quality of product.
Through accompanying drawing and embodiment, technical scheme of the present invention is done further detailed description below.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art; To do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below; Obviously; Accompanying drawing in describing below only is some embodiments of the present invention; For those of ordinary skills; Under the prerequisite of not paying creative work property, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the flow chart of an embodiment of method of calibration of scanning detecting precision of detecting head of the present invention;
Fig. 2 is the structural representation of an embodiment of calculation processing apparatus of the present invention;
Fig. 3 is the structural representation of an embodiment of check system of scanning detecting precision of detecting head of the present invention;
Fig. 4 is the structural representation of another embodiment of check system of scanning detecting precision of detecting head of the present invention;
Fig. 5 is the structural representation of another embodiment of check system of scanning detecting precision of detecting head of the present invention;
Fig. 6 is the flow chart of an application implementation example of method of calibration of scanning detecting precision of detecting head of the present invention.
The specific embodiment
To combine the accompanying drawing in the embodiment of the invention below, the technical scheme in the embodiment of the invention is carried out clear, intactly description, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the present invention's protection.
More pay close attention to process in the modern quality control system, stress process capability, because have only stable process that qualified product or service could be provided constantly.In the embodiment of the invention; Obtain the Process Capability Index Cpk value of scanning detection head in testing process in the Cigarette Weight Control System; Weigh the degree that the process capability that scans detection head satisfies quality requirement through the Cpk value; Thereby realize the quantitative judgement of the accuracy of detection of scanning detection head; Feasible judgement to scanning detecting precision of detecting head is more accurate, reasonable, more meets the process capability standard-required of modern quality control system.
Fig. 1 is the flow chart of an embodiment of the inventive method.As shown in Figure 1, the method for this embodiment comprises:
In the method for calibration of the scanning detecting precision of detecting head that the above embodiment of the present invention provides; The target weight cigarette that obtains predetermined number based on the scanning detection head props up; And obtain in view of the above scanning detection head real process Capability index Cpk value; Come the accuracy of detection of quantitative judgement scanning detection head through the Cpk value; And when the accuracy of detection of scanning detection head is defective; It is calibrated, realized the quantitative judgement of scanning detecting precision of detecting head height and realized calibration in view of the above the scanning detection head.
As one embodiment of the present of invention, step 101 specifically can realize through following mode:
Sampling equipment is gathered the density signal that current cigarette props up from the scanning detection head, calculates current cigarette weight according to this density signal;
When current cigarette weight equates with target weight; The rejecting door of control cigarette machine; Current cigarette Zhi Zuowei target weight cigarette Zhi Jinhang is rejected sampling; Return then and carry out the operation that sampling equipment is gathered the density signal that current cigarette props up from detection head, prop up up to the target weight cigarette of rejecting the sampling predetermined number.
As an alternative embodiment of the invention, step 102 specifically can realize through following mode:
Respectively the target weight cigarette Zhi Jinhang actual weight of predetermined number is measured, obtained the actual weight value that the target weight cigarette of predetermined number props up;
According to the actual weight value of predetermined number, calculate the average weight value μ that the target weight cigarette props up;
Actual weight value and average weight value μ according to the target weight cigarette of predetermined number props up calculate the weight standard deviations.According to an instantiation of the present invention, can be through following formula calculated weight standard deviation, wherein, n is a predetermined number, μ
iBe that i props up the actual weight that the target weight cigarette props up:
According to formula Cpk=(1-k) Cp=(1-k) T/6 σ, obtain the Cpk value of scanning detection head.
Wherein, k is an irrelevance, k=2|M-μ |/T, M are the cigarette weight preset value, and T is the Measurement Allowance of scanning detecting precision of detecting head, T=T
0/ 2.6, T
0Allowable error scope preset value for cigarette Zhi Danchong.
In practical application, T0 can actual demand set different numerical, in tobacco business, and the allowable error scope T0=of cigarette Zhi Danchong ± 0.06 gram (g).The scanning detection head is used to detect cigarette Zhi Danchong, so the Measurement Allowance of scanning detecting precision of detecting head is when confirming, its detectability must satisfy cigarette Zhi Danchong Testing requirement.According to T=T0/2.6 ≈ ± 0.02g, therefore, for satisfying the requirement to cigarette Zhi Danchong accuracy of detection, the Measurement Allowance of the accuracy of detection of scanning detection head is set at T=± 0.02g in the Cigarette Weight Control System.
As another embodiment of the present invention, in the step 103, the number range that can preestablish the qualified Cpk value of accuracy of detection of scanning detection head is: 1.00＜Cpk≤1.67.Then the accuracy of detection of judging the scanning detection head according to the Cpk value qualified being specially: 1.00＜Cpk≤1.67 o'clock whether think that the accuracy of detection of scanning detection head is qualified; Otherwise, in Cpk＞1.67 or Cpk≤1.00 o'clock, think that the accuracy of detection of said scanning detection head is defective.
In addition; As another embodiment of the present invention; In the step 104; Specifically can calibrate the scanning detection head through following method: the running parameter of the control parameter change scanning detection head through adjustment scanning detection head makes target weight cigarette based on next group predetermined number prop up the Cpk value that obtains and is positioned at preset range.Wherein, when the Cpk value was positioned at preset range, the accuracy of detection of scanning detection head was qualified.
For example: for the microwave scanning detection head that generally adopts in the industry; Its running parameter comprises: current average resonance frequencies F, current amplitude U, inner sampled voltage U0, cigarette average weight W, resonator temperature T and center resonance point F0; Wherein, current amplitude U is relevant with the pipe tobacco water content.When the Cpk value is not in preset range; The accuracy of detection that this microwave scanning detection head is described has surpassed tolerance band; The control parameter that can adjust microwave scanning detection head changes the above-mentioned running parameter of scanning detection head, and control parameter wherein comprises: the adjusting parameter PU of moisture content penalty coefficient KU, W output, the signal amplification factor KP of W, the adjustment factor KT of amplitude U, resonator temperature are set PT and benchmark resonance point preset value PF0.
Fig. 2 is the structural representation of an embodiment of calculation processing apparatus of the present invention.The calculation processing apparatus of this embodiment can be used for realizing the step 102 among the method for calibration embodiment of above-mentioned each scanning detecting precision of detecting head of the present invention.As shown in Figure 2, it comprises that receiver module 201, first computing module 202, second computing module the 203, the 3rd calculate module 204 and output module 205.
Wherein, receiver module 201 is used for the actual weight value that receiving target weight cigarette props up.The actual weight value that the target weight cigarette of the predetermined number that first computing module 202 is used for receiving according to receiver module 201 props up calculates the average weight value μ that the target weight cigarette props up.The actual weight value that the target weight cigarette of the predetermined number that second computing module 203 is used for receiving according to receiver module 201 props up, the average weight value μ with first computing module 202 calculates calculates the weight standard deviations.According to the present invention, a specific example, using the following equation to calculate the weight standard deviation σ, where, n is the preset number, μi is the i-th branch target weight cigarette actual weight:
The third calculation module 204 is used according to the formula Cpk = (1-k) Cp = (1-k) T/6σ, calculated by the first calculation module 202 to obtain the average weight value μ, and the second calculation module 203 the standard deviation calculated by the weight σ, for Cpk value.Wherein, k is an irrelevance, k=2|M-μ |/T, M are the cigarette weight preset value, and T is the Measurement Allowance of scanning detecting precision of detecting head, T=T
0/ 2.6, T
0Allowable error scope preset value for cigarette Zhi Danchong.In practical application, T0 can actual demand set different numerical, for example: according to an instantiation of the present invention, T0=± 0.06g.Output module 205 is used to export the 3rd and calculates the Cpk value that module 204 gets access to.
The calculation processing apparatus that the above embodiment of the present invention provides; Can obtain the real process Capability index Cpk value of scanning detection head according to the actual weight value that the target weight cigarette that receives props up; Through this Cpk value just can be quantitative the accuracy of detection of judgement scanning detection head; So that when the accuracy of detection of scanning detection head is defective, it is calibrated, has realized the quantitative judgement of scanning detecting precision of detecting head height.
Fig. 3 is the structural representation of an embodiment of check system of scanning detecting precision of detecting head of the present invention.The check system of this embodiment can be used for realizing the corresponding flow process in the method for calibration of above-mentioned each scanning detecting precision of detecting head of the present invention.As shown in Figure 3, it comprises sampling equipment 301, measurement device 302 and calculation processing apparatus 303.Wherein, sampling equipment 301 is used for gathering the density signal that current cigarette props up from cigarette machine scanning detection head, calculates current cigarette weight according to this density signal; When current cigarette weight equated with target weight, the rejecting door of control cigarette machine was rejected sampling with current cigarette Zhi Zuowei target weight cigarette Zhi Jinhang, propped up up to the target weight cigarette of rejecting the sampling predetermined number.
The actual weight value that the target weight cigarette of the predetermined number that calculation processing apparatus 303 is used for measuring according to measurement device 302 props up calculates the average weight value μ that the target weight cigarette props up; Actual weight value and average weight value μ according to the target weight cigarette of predetermined number props up calculate the weight standard deviations; According to formula Cpk=(1-k) Cp=(1-k) T/6 σ, obtain Cpk value and output.Wherein, k is an irrelevance, k=2|M-μ |/T, M are the cigarette weight preset value, and T is the Measurement Allowance of scanning detecting precision of detecting head, T=T
0/ 2.6, T
0Allowable error scope preset value for cigarette Zhi Danchong.
Fig. 4 is the structural representation of another embodiment of check system of scanning detecting precision of detecting head of the present invention, and the check system of this embodiment can be used for realizing the method for calibration of above-mentioned each scanning detecting precision of detecting head of the present invention.Compare with embodiment shown in Figure 3, the check system of this embodiment also comprises calibrating installation 304, is used for whether being positioned at preset range according to the Cpk value of calculation processing apparatus 303 outputs, judges whether the accuracy of detection of scanning detection head is qualified; When the accuracy of detection of scanning detection head is defective, props up the Cpk value that obtains through the target weight cigarette of adjusting the running parameter that the control parameter change that scans detection head scans detection head, make next the group predetermined number that adopts based on sampling equipment and be positioned at preset range.
In Fig. 3 and check system embodiment illustrated in fig. 4, calculation processing apparatus 303 specifically can be realized through structure embodiment illustrated in fig. 2.Sampling equipment 301 specifically can comprise storage device 401, checkout gear 402, smoke bar impulse interface 403, calculation element 404, comparison means 405 and control device 406.As shown in Figure 5, be the structural representation of another embodiment of check system of scanning detecting precision of detecting head of the present invention.
Wherein, storage device 401 is used to store target weight and will rejects the predetermined number that the sampling cigarette props up.Checkout gear 402 is used for gathering the density signal that cigarette props up from the scanning detection head.Smoke bar impulse interface 403 is used for receiving smoke bar impulse from cigarette machine.In the process of cigarette machine work, it all is to position as starting point and carry out operations such as follow-up detection and rejecting through shift LD with this smoke bar impulse that all cigarettes prop up.Calculation element 404 is used for calculating the weight that corresponding cigarette props up according to the density signal that checkout gear 402 is gathered.Whether comparison means 405 is used for the weight that cigarette that comparison calculation element 404 calculates props up and equates with the target weight that storage device 401 is stored.Control device 406 is used for the comparative result according to comparison means 405; When the weight that the cigarette that calculation element 404 calculates props up equates with the target weight of storage in the storage device 401; The smoke bar impulse that receives based on smoke bar impulse interface 403; Rejecting door in the control cigarette machine props up with the current cigarette that the target weight of storage in the storage device 401 equates to reject this weight of sampling; The cigarette of the predetermined number of storage props up in rejecting sampling storage device 401, and indication checkout gear 402 is no longer gathered the density signal that cigarette props up.
Fig. 6 is the flow chart of an application implementation example of method of calibration of scanning detecting precision of detecting head of the present invention, and it is realized based on checking system embodiment illustrated in fig. 5, among this embodiment; Suppose that relevant parameter is: T0=± 0.06g; M=0.88g, target weight are 0.88g, and predetermined number is 100.As shown in Figure 6, it comprises following flow process:
Actual weight value (the unit: g) that table 1100 a target weight cigarette props up
| 0.877 | 0.884 | 0.872 | 0.885 | 0.885 | 0.888 | 0.876 | 0.878 | 0.877 | 0.872 |
| 0.879 | 0.879 | 0.879 | 0.877 | 0.886 | 0.877 | 0.877 | 0.879 | 0.884 | 0.883 |
| 0.879 | 0.881 | 0.887 | 0.872 | 0.889 | 0.878 | 0.883 | 0.886 | 0.876 | 0.876 |
| 0.877 | 0.883 | 0.885 | 0.875 | 0.872 | 0.874 | 0.884 | 0.888 | 0.877 | 0.878 |
| 0.878 | 0.892 | 0.874 | 0.885 | 0.878 | 0.878 | 0.873 | 0.876 | 0.883 | 0.873 |
| 0.88 | 0.881 | 0.883 | 0.88 | 0.88 | 0.883 | 0.884 | 0.874 | 0.888 | 0.881 |
| 0.877 | 0.878 | 0.882 | 0.871 | 0.888 | 0.881 | 0.883 | 0.883 | 0.878 | 0.876 |
| 0.885 | 0.88 | 0.885 | 0.883 | 0.88 | 0.882 | 0.881 | 0.87 | 0.883 | 0.893 |
| 0.873 | 0.878 | 0.877 | 0.878 | 0.882 | .878 | 0.881 | 0.883 | 0.881 | 0.886 |
| 0.878 | 0.885 | 0.88 | 0.879 | 0.883 | 0.873 | 0.887 | 0.872 | 0.888 | 0.878 |
The process synthesis performance capabilities grading standard that table 2 is general
Each embodiment all adopts the mode of going forward one by one to describe in this specification, and what each embodiment stressed all is and the difference of other embodiment that same or analogous part cross-references gets final product between each embodiment.For device embodiment, because it is similar basically with method embodiment, so description is fairly simple, relevant part gets final product referring to the part explanation of method embodiment.
One of ordinary skill in the art will appreciate that: all or part of step that realizes said method embodiment can be accomplished through the relevant hardware of programmed instruction; Aforesaid program can be stored in the computer read/write memory medium; This program the step that comprises said method embodiment when carrying out; And aforesaid storage medium comprises: various media that can be program code stored such as ROM, RAM, magnetic disc or CD.
In the embodiment of the invention; Can prop up based on the target weight cigarette that the scanning detection head obtains predetermined number; And obtain in view of the above scanning detection head real process Capability index Cpk value; Come the accuracy of detection of quantitative judgement scanning detection head by the Cpk value; And when the accuracy of detection of scanning detection head is defective; It is calibrated; Realized the quantitative judgement of scanning detecting precision of detecting head height and realized calibration in view of the above the scanning detection head; Thereby guarantee that the scanning detection head is operated in eligible state; Guarantee the normal operation of Cigarette Weight Control System, guarantee that cigarette props up the quality of product.
Description of the invention provides for example with for the purpose of describing, and is not the disclosed form that exhaustively perhaps limit the invention to.A lot of modifications and variation are obvious for the ordinary skill in the art.Selecting and describing embodiment is for better explanation principle of the present invention and practical application, thereby and makes those of ordinary skill in the art can understand the various embodiment that have various modifications that the present invention's design is suitable for special-purpose.
Claims (10)
1. the method for calibration of a scanning detecting precision of detecting head is characterized in that, comprising:
The target weight cigarette that obtains predetermined number based on the scanning detection head props up;
Target weight cigarette by said predetermined number props up the real process Capability index Cpk value of obtaining said scanning detection head;
Whether the accuracy of detection of judging said scanning detection head according to said Cpk value is qualified;
When the accuracy of detection of said scanning detection head is defective, said scanning detection head is calibrated.
2. method according to claim 1 is characterized in that, the said target weight cigarette that obtains predetermined number based on the scanning detection head props up and comprises:
Sampling equipment is gathered the density signal that current cigarette props up from said scanning detection head, calculates current cigarette weight according to this density signal;
When said current cigarette weight equates with target weight; The rejecting door of control cigarette machine; Current cigarette Zhi Zuowei target weight cigarette Zhi Jinhang is rejected sampling; Return then and carry out the operation that said sampling equipment is gathered the density signal that current cigarette props up from said detection head, prop up up to the target weight cigarette of rejecting the sampling predetermined number.
3. method according to claim 2 is characterized in that, props up the Cpk value of obtaining said scanning detection head by the target weight cigarette of said predetermined number and comprises:
Respectively the target weight cigarette Zhi Jinhang actual weight of predetermined number is measured, obtained the actual weight value that the target weight cigarette of predetermined number props up;
According to the actual weight value of predetermined number, calculate the average weight value μ that the target weight cigarette props up;
Actual weight value and said average weight value μ according to the target weight cigarette of predetermined number props up calculate the weight standard deviations;
According to formula Cpk=(1-k) Cp=(1-k) T/6 σ, obtain the Cpk value of said scanning detection head;
Wherein, k is an irrelevance, k=2|M-μ |/T, M are the cigarette weight preset value, and T is the Measurement Allowance of scanning detecting precision of detecting head, T=T
0/ 2.6, T
0Allowable error scope preset value for cigarette Zhi Danchong.
4. method according to claim 3 is characterized in that T
0=± 0.06g.
5. method according to claim 3 is characterized in that, whether the accuracy of detection of judging said scanning detection head according to said Cpk value qualified being specially: 1.00＜Cpk≤1.67 o'clock, think that the accuracy of detection of said scanning detection head is qualified; Otherwise, in Cpk＞1.67 or Cpk≤1.00 o'clock, think that the accuracy of detection of said scanning detection head is defective.
6. according to any described method of claim 1 to 5, it is characterized in that, said scanning detection head is calibrated comprised:
The running parameter of the said scanning detection head of control parameter change through adjusting said scanning detection head makes target weight cigarette based on next group predetermined number prop up the Cpk value that obtains and is positioned at preset range; Wherein, when the Cpk value was positioned at preset range, the accuracy of detection of said scanning detection head was qualified.
7. a calculation processing apparatus is characterized in that, comprising:
Receiver module is used for the actual weight value that receiving target weight cigarette props up;
First computing module is used for the actual weight value that the target weight cigarette according to predetermined number props up, and calculates the average weight value μ that the target weight cigarette props up;
Second computing module is used for actual weight value and said average weight value μ that the target weight cigarette according to predetermined number props up, calculates the weight standard deviations;
The 3rd calculates module, is used for the σ according to formula Cpk=(1-k) Cp=(1-k) T/6, obtains the Cpk value; Wherein, k is an irrelevance, k=2|M-μ |/T, M are the cigarette weight preset value, and T is the Measurement Allowance of scanning detecting precision of detecting head, T=T
0/ 2.6, T
0Allowable error scope preset value for cigarette Zhi Danchong;
Output module is used to export said Cpk value.
8. device according to claim 7 is characterized in that T
0=± 0.06g.
9. the check system of a scanning detecting precision of detecting head is characterized in that, comprising:
Sampling equipment is used for gathering the density signal that current cigarette props up from cigarette machine scanning detection head, calculates current cigarette weight according to this density signal; When said current cigarette weight equates with target weight, control the rejecting door of said cigarette machine, current cigarette Zhi Zuowei target weight cigarette Zhi Jinhang is rejected sampling, prop up up to the target weight cigarette of rejecting the sampling predetermined number;
Measurement device is used for respectively the target weight cigarette Zhi Jinhang actual weight of said sampling equipment sampling is measured, and obtains the actual weight value that the target weight cigarette of predetermined number props up;
Calculation processing apparatus, the actual weight value that the target weight cigarette of the predetermined number that is used for obtaining according to said measurement device props up calculates the average weight value μ that the target weight cigarette props up; Actual weight value and said average weight value μ according to the target weight cigarette of predetermined number props up calculate the weight standard deviations; According to formula Cpk=(1-k) Cp=(1-k) T/6 σ, obtain Cpk value and output; Wherein, k is an irrelevance, k=2|M-μ |/T, M are the cigarette weight preset value, and T is the Measurement Allowance of scanning detecting precision of detecting head, T=T
0/ 2.6, T
0Allowable error scope preset value for cigarette Zhi Danchong.
10. system according to claim 9 is characterized in that, also comprises:
Calibrating installation is used for whether being positioned at preset range according to the Cpk value of said calculation processing apparatus output, judges whether the accuracy of detection of said scanning detection head is qualified; When the accuracy of detection of said scanning detection head is defective; The running parameter of the said scanning detection head of control parameter change through adjusting said scanning detection head makes the target weight cigarette of next the group predetermined number that adopts based on said sampling equipment prop up the Cpk value that obtains and is positioned at preset range.
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103693225A (en) * | 2013-12-26 | 2014-04-02 | 红塔烟草(集团)有限责任公司 | Calibration method of cigarette loose end detector of type-B1 packing machine |
| CN105388168A (en) * | 2015-12-11 | 2016-03-09 | 贵州中烟工业有限责任公司 | Verifying method of cigarette apparatus detection technology |
| CN109007962A (en) * | 2018-10-17 | 2018-12-18 | 龙岩烟草工业有限责任公司 | Calibration method, device and the cigarette machine of the online circumference detection device of cigarette |
| CN110263980A (en) * | 2019-05-29 | 2019-09-20 | 浙江陀曼云计算有限公司 | Produce method for early warning and device |
| CN110279142A (en) * | 2019-02-14 | 2019-09-27 | 山东中烟工业有限责任公司 | In filter stick quick-fried pearl whether Po Sun measuring method, storage medium and equipment |
| CN110348593A (en) * | 2019-05-29 | 2019-10-18 | 浙江陀曼云计算有限公司 | Produce method for early warning, apparatus and system |
| CN110349046A (en) * | 2019-05-29 | 2019-10-18 | 浙江陀曼云计算有限公司 | Produce method for early warning and device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103693225A (en) * | 2013-12-26 | 2014-04-02 | 红塔烟草(集团)有限责任公司 | Calibration method of cigarette loose end detector of type-B1 packing machine |
| CN105388168A (en) * | 2015-12-11 | 2016-03-09 | 贵州中烟工业有限责任公司 | Verifying method of cigarette apparatus detection technology |
| CN105388168B (en) * | 2015-12-11 | 2020-10-13 | 贵州中烟工业有限责任公司 | Verification method of cigarette equipment detection process |
| CN109007962A (en) * | 2018-10-17 | 2018-12-18 | 龙岩烟草工业有限责任公司 | Calibration method, device and the cigarette machine of the online circumference detection device of cigarette |
| CN110279142A (en) * | 2019-02-14 | 2019-09-27 | 山东中烟工业有限责任公司 | In filter stick quick-fried pearl whether Po Sun measuring method, storage medium and equipment |
| CN110279142B (en) * | 2019-02-14 | 2021-10-08 | 山东中烟工业有限责任公司 | Determination method, storage medium and equipment for whether the explosive beads in the filter rod are damaged |
| CN110263980A (en) * | 2019-05-29 | 2019-09-20 | 浙江陀曼云计算有限公司 | Produce method for early warning and device |
| CN110348593A (en) * | 2019-05-29 | 2019-10-18 | 浙江陀曼云计算有限公司 | Produce method for early warning, apparatus and system |
| CN110349046A (en) * | 2019-05-29 | 2019-10-18 | 浙江陀曼云计算有限公司 | Produce method for early warning and device |
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