GB/T 17989.4-2020 English PDFUS$1079.00 · In stock
Delivery: <= 7 days. True-PDF full-copy in English will be manually translated and delivered via email. GB/T 17989.4-2020: Control charts - Part 4: Cumulative sum charts Status: Valid
Basic dataStandard ID: GB/T 17989.4-2020 (GB/T17989.4-2020)Description (Translated English): Control charts - Part 4: Cumulative sum charts Sector / Industry: National Standard (Recommended) Classification of Chinese Standard: A41 Classification of International Standard: 03.120.30 Word Count Estimation: 58,575 Date of Issue: 2020-03-06 Date of Implementation: 2020-10-01 Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration GB/T 17989.4-2020: Control charts - Part 4: Cumulative sum charts---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.Control charts--Part 4. Cumulative sum charts ICS 03.120.30 A41 National Standards of People's Republic of China Replaces GB /Z 4887-2006 Control Charts Part 4. Cumulative and control charts (ISO 7870-4..2011, MOD) 2020-03-06 release 2020-10-01 implementation State Administration of Market Supervision Published by the National Standardization Administration ContentsForeword III Introduction Ⅴ 1 Scope 1 2 Normative references 1 3 Terms and definitions, acronyms and symbols 1 3.1 Terms and definitions 1 3.2 Abbreviations 2 3.3 Symbol 2 4 Cumulative sum chart overview 3 5 Basic steps for cumulative sum graph construction 4 6 Example of cumulative sum graph 4 6.1 Process 4 6.2 Observed line chart 4 6.3 Single value control diagram 6 6.4 Graphical representation of cumulative sums 6 6.5 Construction of Cumulative Sum Graphs 6 6.6 Interpretation of Cumulative Sum Graphs 7 6.7 Manhattan Figure 10 7 Judgment based on cumulative sum 10 7.1 The need for judgment criteria 10 7.2 Decision Basis 10 7.3 Effectiveness Measures of Judgment Criteria 11 8 Cumulative sum graph decision scheme type 13 8.1 V-shaped template 13 8.2 Truncated V-shaped formwork 13 8.3 Alternative Design Approaches 18 8.4 Semi-parabolic V-shaped template 19 8.5 Flat nose V template 20 8.6 Complete V template 20 8.7 Considering the cumulative sum of fast initial response (FIR) Figure 21 8.8 Tabular Cumulative Sum Figure 21 9 Cumulative sum method of process and quality control 23 9.1 Types of changes to be detected 23 9.2 Selection of target values 24 9.3 Cumulative Sum Design Scheme for Position Monitoring 25 9.4 Cumulative Sum Graphic Design for Wave Monitoring 32 9.5 Special cases 38 9.6 Cumulative sum of discrete data Appendix A (informative) Von Neumann's method 46 Appendix B (informative) Example of tabulated accumulation sum chart 47 Appendix C (informative) Change point estimates for step changes 50 References 52ForewordThe plan of GB/T 17989 "Control Chart" is divided into the following 9 parts. --- Part 1. General guidelines; --- Part 2. Conventional control chart; --- Part 3. Acceptance control chart; --- Part 4. Cumulative and control charts; --- Part 5. Special control charts; --- Part 6. Exponentially weighted moving average control chart; --- Part 7. Multiple control charts; --- Part 8. Short cycle and small batch control methods; --- Part 9. Autocorrelation process control chart. This part is Part 4 of GB/T 17989. This section is drafted in accordance with the rules given in GB/T 1.1-2009. This section replaces GB /Z 4887-2006 "Guidelines for the use of cumulative sum techniques for quality control and data analysis of cumulative sum charts." versus Compared with GB /Z 4887-2006, the main technical changes are as follows. --- Adjust GB /Z 4887-2006 0.1 "Basic of Cumulative Sum Graph" to Chapter 4 "Overview of Cumulative Sum Graph" (see Section 4 Chapter, Chapter 0 of GB /Z 4887-2006); --- Adjust GB /Z 4887-2006 0.2 "Simple Example of Cumulative Sum Graph" to Chapter 6 "Example of Cumulative Sum Graph", And enriched and improved the relevant content (see 6.5 ~ 6.7, Chapter 0 of GB /Z 4887-2006); --- Added terms and definitions (see 3.1); --- Added acronyms (see 3.2); --- Added symbols (see 3.3); --- Removed GB /Z 4887-2006 Chapter 2 "Cumulative Sum Graph Preparation"; --- Removed GB /Z 4887-2006 Chapter 3 "Representation of Figures"; --- GB /Z 4887-2006 Chapter 4 "Judgment Rules for Graphs" has been adjusted to Chapters 7 and 8 of this part, of which Chapter 7 "Base "Determining cumulative sums" clarifies the basic criteria for cumulative sums. Chapter 8 "Cumulative sum graph scheme types" provides a variety of specific Accumulation and determination methods (see Chapters 7 and 8, Chapter 4 of GB /Z 4887-2006); --- Added semi-parabolic V-shaped template (see 8.4); --- Deleted Chapter 5 "Judgment Rules for Retrospective Analysis" in GB /Z 4887-2006; --- Removed Chapter 7 "Application Examples" of GB /Z 4887-2006; --- Added an example of a motor production process (see Chapter 6); --- Increased handling measures based on the nature of the process (see 7.1); --- Elaborate the cumulative sum graph design scheme for wave monitoring (see 9.4); --- Explains the cumulative sum graph design scheme of discrete data (see 9.5); --- Increased the introduction of the Von Neumann method (see Appendix A), tabular accumulation and graph examples (see Appendix B) and the change points of step changes Estimate (see Appendix C). This part uses the redrafting method to modify and adopt ISO 7870-4..2011 "Control Chart Part 4. Accumulation and Control Chart". The technical differences between this part and ISO 7870-4..2011 and their causes are as follows. --- Regarding the normative references, this section has made adjustments with technical differences to adapt to China's technical conditions and the situation of adjustment. The situation is reflected in Chapter 2 "Regulatory Reference Documents", and the specific adjustments are as follows. ● Replace ISO 3534-1 with GB/T 3358.1 equivalent to the international standard (see Chapter 3); ● Replace ISO 3534-2 with GB/T 3358.2 equivalent to the international standard (see Chapter 3); ● Added reference to GB/T 17989.1 (see Chapter 3). The following editorial changes have also been made in this section. --- Modify the title of Chapter 6 to "Example of cumulative sum graph"; --- Added step 1 missing from the 9.6.1.3 example; --- Added step 1 missing from 9.6.2.2 example; --- Added steps 1 and 3 missing in 9.6.2.3; --- Rewrite step 6 of 9.6.1.3 and 9.6.2.2 as "according to the H and K values, from Table 24 [Count (Poisson) data in different H and K combination of the cumulative sum of the average chain length features under the scheme] in the form of "retrieval and query the performance of its appropriate scheme", which is easy to guide reading Operation and use. This part was proposed and managed by the National Technical Committee for Standardization of Statistical Methods (SAC/TC21). This section was drafted by. Beijing University of Aeronautics and Astronautics, Xiamen Yiheweigui Construction Engineering Management Co., Ltd., China Institute of Standardization, China Institute of Atomic Energy, Beijing Institute of Aerospace Control Instruments, Haifeng General Aviation Technology Co., Ltd. The main drafters of this section. Yang Jun, Huang Shuo, Hao Songhua, Zhang Fan, Hong Liang, Xiang Shihu, Li Lei, Kong Xuefeng, Wu Shengna, Yu Huan, and Chen Yan. The previous versions of the standards replaced by this section are. --- GB/T 4887-1985, GB /Z 4887-2006.IntroductionThis section introduces a simple and effective method of graphical data display, showing its flexibility and practicality, the method is suitable for any Meaningful data sequence. This data covers a wide range, and can be macro business data (e.g. turnover, profit or management expenses), or This is micro-operational data (for example, downtime and absenteeism controlled for individual process parameters and product characteristics). Data can be represented A series of individual values, which can be expressed on a continuous scale (for example, 24, 60, 31, 21, 18, 97) The format of "good/bad" and "success/failure" is expressed; of course, the data can also be expressed as comprehensive indicators (for example, mean, range, number of events). The method has an interesting name "cumulative sum", referred to as "cumulative sum (CUSUM)". The name and data processing process are Off, each observation minus a predetermined value (for example, target value, priority value or reference value) to get a deviation (Add) These deviations, the cumulative deviation sequence diagram is called cumulative sum graph. Such a simple arithmetic process has a visual interpretation of the data. Significant effect. Golfers around the world have unknowingly used accumulation and methods. By scoring "plus 4" or "minus 2", golf The player uses the cumulative sum method in a numerical sense. They subtract "pars" from their actual scores, and then accumulate the income bias. difference. This is the practical application of the cumulative sum method. However, in the areas of commerce, industry, finance, and public services, accumulation and methods are still large. The extent is unknown and the usage rate is extremely low. This may be due to the fact that cumulative sum methods are often expressed in statistical language rather than actually working Language. This section aims to help users understand the cumulative sum map and promote the wide application and promotion of the method. Cumulative and control charts are conventional controls A useful supplement to the graph, for small offsets, the cumulative sum graph is easier to detect and use. In golf, when the par changes, And the chart is not affected, the conventional control chart requires adjustment of the control line. In addition to conventional control charts, you can also use exponentially weighted moving average control charts (EWMA). Summary of each point in the EWMA chart The information of all subgroups or observations is given. For more "distant" process data, a smaller weight is assigned according to the exponential decay trend. And accumulation Similar to the graph, the EWMA graph can also sensitively detect small offsets in the process. EWMA diagrams will be presented in another part of this series of standards discuss. Control Charts Part 4. Cumulative and control charts1 ScopeThis part of GB/T 17989 describes the general application of process monitoring, control, and retrospective analysis using Cumulative Summation Method of statistical decision-making, provides a cumulative sum (CUSUM) control chart statistical method for process and quality control. This section applies to metering and counting data.2 Normative referencesThe following documents are essential for the application of this document. For dated references, only the dated version applies to this article Pieces. For undated references, the latest version (including all amendments) applies to this document. GB/T 3358.1 Statistical vocabulary and symbols. Part 1. General statistical terms and terms used for probability (GB/T 3358.1- 2009, ISO 3534-1..2006, IDT) GB/T 3358.2 Statistics Vocabulary and Symbols Part 2. Applied Statistics (GB/T 3358.2-2009, ISO 3534-2..2006, IDT) GB/T 17989.1 Control Chart Part 1. General Guidelines (GB/T 17989.1-2020, ISO 7870-1..2014, MOD) 3 Terms and definitions, acronyms and symbols 3.1 Terms and definitions The following terms and definitions defined in GB/T 3358.1, GB/T 3358.2 and GB/T 17989.1 apply to this document. 3.1.1 Targetvalue The average value used when locating the deviation to be detected. Note 1. The cumulative sum shown is the accumulation of deviations from the target value. Note 2. With the V-shaped template, the target value of the cumulative sum graph often adopts the reference value or the nominal control value. It should be clearly stated that, similar to other criteria, the target value is not Must be the most ideal or preferred value. It is just a target value used to construct a cumulative sum graph. 3.1.2 Datumvalue Standard values used to calculate deviations in tabular cumulative sum plots. Note. The upper reference value T fσe is used for monitoring upward shift, and the lower reference value T-fσe is used for monitoring downward shift. 3.1.3 Reference shift F, f < Tabularized Sum> The difference between the target value (3.1.1) and the reference value (3.1.2). Note. f is the standardized reference offset, and F is the observed reference offset F = fσf. ......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB/T 17989.4-2020_English be delivered?Answer: Upon your order, we will start to translate GB/T 17989.4-2020_English as soon as possible, and keep you informed of the progress. The lead time is typically 4 ~ 7 working days. The lengthier the document the longer the lead time.Question 2: Can I share the purchased PDF of GB/T 17989.4-2020_English with my colleagues?Answer: Yes. 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