GB/T 38047.2-2021 English PDFUS$259.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email. GB/T 38047.2-2021: Evaluation methods for reliability on smart household appliances - Part 2: Special requirements for room air conditioners Status: Valid
Basic dataStandard ID: GB/T 38047.2-2021 (GB/T38047.2-2021)Description (Translated English): Evaluation methods for reliability on smart household appliances - Part 2: Special requirements for room air conditioners Sector / Industry: National Standard (Recommended) Classification of Chinese Standard: Y60 Word Count Estimation: 14,152 Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration GB/T 38047.2-2021: Evaluation methods for reliability on smart household appliances - Part 2: Special requirements for room air conditioners---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. (Reliability Evaluation Method of Smart Home Appliances Part 2.Special Requirements for Room Air Conditioners) ICS 97.030 CCSY60 National Standards of People's Republic of China Reliability Evaluation Method of Smart Home Appliances Part 2.Special requirements for room air conditioners Released on 2021-05-21 2021-12-01 implementation State Administration of Market Supervision and Administration Issued by the National Standardization Management Committee Table of contentsForeword Ⅰ Introduction Ⅱ 1 Scope 1 2 Normative references 1 3 Terms and definitions 1 4 Reliability evaluation content 1 5 Reliability test method 2 6 Analysis and evaluation of failure data 5 Appendix A (informative) Example 6 of the operating mode profile of a smart air conditioner Appendix B (informative) Typical failure modes of several commonly used sensors in smart air conditioners 7 Appendix C (informative) Example 8 for the development of environmental stress profile of smart air conditioners Reference 10ForewordThis document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for Standardization Work Part 1.Structure and Drafting Rules of Standardization Documents" Drafting. This document is the second part of GB/T 38047 "Reliability Evaluation Method for Smart Household Appliances". GB/T 38047 has been released the next part. ---Part 1.General requirements; ---Part 2.Special requirements for room air conditioners. Please note that some of the contents of this document may involve patents. The issuing agency of this document is not responsible for identifying patents. This document was proposed by the China National Light Industry Council. This document is under the jurisdiction of the National Household Appliances Standardization Technical Committee (SAC/TC46). Drafting organizations of this document. The Fifth Institute of Electronics, Ministry of Industry and Information Technology, China Household Electrical Appliances Research Institute, Qingdao Haier Air Conditioner Co., Ltd. Company, Zhuhai Gree Electric Co., Ltd., Guangdong Midea Refrigeration Equipment Co., Ltd., Anhui Zhongjia Zhirui Technology Co., Ltd., Qingdao Haier Intelligent Technology R&D Co., Ltd., Weikai Testing Technology Co., Ltd., Daikin (China) Investment Co., Ltd. Shanghai Branch, Oaks Air Conditioning Stock Co., Ltd., Beijing Xiaomi Electronic Products Co., Ltd., China Quality Certification Center, Zhejiang Zhongguang Electric Co., Ltd., Guangdong Product Quality Quality Supervision and Inspection Research Institute, Shandong Institute of Metrology, Foshan Quality Measurement Supervision and Inspection Center, TCL Air Conditioner (Zhongshan) Co., Ltd. Division, Sichuan Changhong Air Conditioning Co., Ltd., Hisense (Shandong) Air Conditioning Co., Ltd., Xi'an Qing'an Refrigeration Equipment Co., Ltd., Changhong Meiling Co., Ltd. Limited company. The main drafters of this document. Wu Shangquan, Li Yi, Chen Jun, Zhang Yanli, Li Kai, Zhao Peng, Gao Baohua, Chen Jin, Ge Zhiqiang, Wu Zhidong, Qi Xin, Cheng Yongfu, Li Libo, Zhang Tianshun, Wang Kun, Yuan Yaqing, Ling Yongjun, He Weihong, Liu Yi, Ou Zhuohong, Xiang Weiqin, Liu Fan, Liu Xumin, Sun Min, Li Yubing.IntroductionWith the in-depth development of the smart home appliance industry, intelligent technology applications are emerging one after another. For smart home appliances, the product is reliable The performance index is different from traditional home appliances in the past, and some of its own characteristics make the reliability evaluation criteria of traditional home appliances no longer applicable. needle Regarding the current situation, on the basis of the original reliability standard system for household appliances, supplement the establishment of GB/T 38047 ``Smart Household Appliances "Reliability Evaluation Method" evaluation criteria, GB/T 38047 is proposed to be composed of several parts. ---Part 1.General requirements. The purpose is to establish general requirements and methods applicable to the reliability evaluation of smart home appliances. ---Part 2.Special requirements for room air conditioners. On the basis of the general requirements, the products suitable for smart room air conditioners are given. Special requirements and specific evaluation schemes for product reliability evaluation. ---Part n. Special requirements for other smart home appliances. The reliability requirements of smart air conditioner products are an indispensable part of the research on smart technology of air conditioners, which will affect the products of the air conditioner industry in my country. Quality upgrading and manufacturing transformation have played an important and positive role. Reliability Evaluation Method of Smart Home Appliances Part 2.Special requirements for room air conditioners1 ScopeThis document specifies the content and test of the reliability evaluation of smart home and room air conditioners for similar purposes (hereinafter referred to as smart air conditioners). Test methods and analytical evaluation methods. This document is applicable to the reliability evaluation of smart air conditioners.2 Normative referencesThe contents of the following documents constitute the indispensable clauses of this document through normative references in the text. Among them, dated quotations Only the version corresponding to that date is applicable to this document; for undated reference documents, the latest version (including all amendments) is applicable to This document. GB 21455 Room air conditioner energy efficiency limit value and energy efficiency rating GB/T 24985-2010 Household and similar room air conditioners reliability test method GB/T 38047.1-2019 Reliability Evaluation Method of Smart Household Appliances Part 1.General Requirements IEC 60335-2-40 Safety of household and similar electrical appliances Part 2-40.Special requirements for heat pumps, air conditioners and dehumidifiers (Householdandsimilarelectricalappliances-Safety-Part 2-40.Particularrequirementsforelectrical heatpumps,air-conditionersanddehumidifiers)3 Terms and definitionsThe following terms and definitions defined in GB/T 38047.1-2019 apply to this document. 3.1 Smartairconditioner Adopt intelligent technology, possess the ability of perception, decision-making, execution, learning and feedback (including the application ability of learning results), and integrate this These capabilities are comprehensively utilized to achieve specific functions of the air conditioner. [Source. GB/T 37879-2019, 3.1]4 Reliability evaluation content4.1 Evaluation parameter selection Smart air conditioners should choose the mean time between failure (MTBF) as the evaluation parameter. 4.2 Determination of evaluation indicators Smart air conditioners should determine the evaluation indicators in accordance with the provisions of 4.2 in GB/T 38047.1-2019. 4.3 Evaluation method The reliability evaluation method of the software and hardware comprehensive test of the intelligent air conditioner intelligent technology specified in this document belongs to the quantitative evaluation method Statistical analysis methods. Note. GB/T 24986.4-2017 and GB/T 24985-2010 give the qualitative and quantitative evaluation of the reliability of other parts of the intelligent air conditioner. method.5 Reliability test method5.1 Test profile design 5.1.1 General rules for test section design The smart air conditioner should be designed in accordance with 5.1.1 of GB/T 38047.1-2019. 5.1.2 Mission profile design of smart home appliances The core mission profile of smart air conditioners mainly includes refrigeration (including dehumidification) and heating mission profiles. Adjust the cooling and heating operating hours, or the content of the smart air-conditioning system log to determine the probability of occurrence of cooling and heating. Note 1.When the probability of occurrence is determined according to the cooling and heating operating hours of the air conditioner specified in GB 21455, taking the heat pump air conditioner as an example, the cooling task is broken down. If the surface is used for X hours in a year and the heating mode is used for Y hours in a year, the probability of the occurrence of the cooling task is X/(XY), and the heating task is issued. The probability of birth is Y/(XY). Note 2.If it is aimed at some intelligent functions, it can be made according to the manufacturer's technical specifications and the operation log of the smart home appliance system. Fix. 5.1.3 Constructing the software test profile 5.1.3.1 Overview of software testing The smart air conditioner is tested for software in accordance with the provisions of 5.1.3.1 in GB/T 38047.1-2019. 5.1.3.2 Determine the software model profile According to the operating mode of the smart air conditioner and the task profile of the smart air conditioner, the user type and the structural structure of the operation are divided, with Record A provides an example of a software operating mode profile. 5.1.3.3 Determine the software functional profile Smart air conditioner interconnection/interoperability requirements can be based on the deviation of expected output and actual output response by constructing input and expected output To determine the degree of failure. For the requirements of intelligent ability and the effect of intelligent functions, if the technical specification document of the intelligent air conditioner has a clear description, And some characteristic indicators can be quantified, which can be observed by comparing the dynamic and static response indicators before the reliability test and during the test. The degree of performance degradation shall be used to determine the fault, otherwise this document does not assess its reliability. For the perception ability in intelligent ability, Appendix B The typical failure modes of several commonly used sensors in smart air conditioners are listed. Note. For the smart air conditioner's perception function of light intensity and human state, its dynamic response time and the degree of attenuation of perception accuracy can be evaluated, and set The threshold value of the degree of deviation of the function judged as a fault. 5.1.3.4 Determine the software operation profile The intelligent air conditioner determines the software operation profile according to the provisions of 5.1.3.4 in GB/T 38047.1-2019. For software operations under the interconnection/interworking function, it can include, but is not limited to, network configuration, equipment certification, startup self-check, equipment operation, OTA program upgrade. Among them, the equipment operation can include, but is not limited to, switch on and off, temperature adjustment, mode adjustment, wind speed adjustment, and wind direction setting. Wait for it. 5.1.4 Tectonic comprehensive environmental stress profile 5.1.4.1 Environmental stress selection In the mission profile of the smart air conditioner, according to the provisions of 5.2.1 in GB/T 24985-2010, the climate and environmental parameters that have the main influence are. a) Refrigeration task operation. the test environment temperature is not less than 32℃, and the relative humidity is 30%~80%; b) Heating task operation. the test environment temperature is not less than 20℃, and the relative humidity is 30%~80%. The power supply voltage is also a kind of stress that affects the reliable operation of smart air conditioners. The power supply voltage should be biased during the test. The extent of the deviation is determined according to the requirements of the product technical specifications. Requirements for network conditions. If the smart air conditioner adopts wireless communication, it should be ensured that it is in the wireless communication mode. In a network environment above 45dBm. 5.1.4.2 Formulation of environmental stress profile First, according to the task profile of the smart air conditioner specified in 5.1.2, the activity state of the smart air conditioner is divided, and each task profile is determined. The relative duration of the face. Secondly, the environmental stress of smart air conditioners is mainly divided into temperature parameter stress and electrical parameter stress, combined with the actual after-sales number of smart air conditioners According to the log of the smart home appliance system, the relative duration of each parameter is determined. At the same time, the temperature parameter stress and electrical parameter stress of the smart air conditioner are Independent relationship. Finally, draw a typical test cycle profile. Appendix C provides an example of the development of an environmental stress profile. Note. For the relationship between parameters, including mutual existence, mutual exclusion, subordination, and independence, please refer to Chapter 6 in GB/T 5080.2-2012. content. 5.1.5 Formulation of comprehensive test profile The intelligent air conditioner shall be formulated according to the provisions of 5.1.5 in GB/T 38047.1-2019. 5.2 Software test preparation 5.2.1 Method of calculating the number of test cases Smart air conditioners should adopt the operating frequency estimation method, and the operating frequency data of smart air conditioners in actual use can be passed through the smart home appliance system. Obtain information such as system logs and documentation. 5.2.2 Assign test cases Smart air conditioners are assigned test cases according to 5.2.2 of GB/T 38047.1-2019. 5.2.3 Specify test case grouping and division Smart air conditioners are divided into test case groups according to 5.2.3 of GB/T 38047.1-2019. When designing test cases involving voice and image, it can be provided by smart air conditioner manufacturers, voice or image module providers Regarding the technical specification documents of the module, develop a simulation interface for simulation testing. ......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB/T 38047.2-2021_English be delivered?Answer: Upon your order, we will start to translate GB/T 38047.2-2021_English as soon as possible, and keep you informed of the progress. The lead time is typically 1 ~ 3 working days. The lengthier the document the longer the lead time.Question 2: Can I share the purchased PDF of GB/T 38047.2-2021_English with my colleagues?Answer: Yes. The purchased PDF of GB/T 38047.2-2021_English will be deemed to be sold to your employer/organization who actually pays for it, including your colleagues and your employer's intranet.Question 3: Does the price include tax/VAT?Answer: Yes. Our tax invoice, downloaded/delivered in 9 seconds, includes all tax/VAT and complies with 100+ countries' tax regulations (tax exempted in 100+ countries) -- See Avoidance of Double Taxation Agreements (DTAs): List of DTAs signed between Singapore and 100+ countriesQuestion 4: Do you accept my currency other than USD?Answer: Yes. If you need your currency to be printed on the invoice, please write an email to Sales@ChineseStandard.net. In 2 working-hours, we will create a special link for you to pay in any currencies. Otherwise, follow the normal steps: Add to Cart -- Checkout -- Select your currency to pay. |
