QX/T 544-2020 in English
VALIDDiscovery metadata for meteorological data
- Issued on:2020-04-14
- Implemented on:2020-07-01
- File Format:PDF
- Delivery:Via email within 5 business days
$679.00
本标准规定了气象数据发现元数据的描述方法、内容与结构、XML格式元数据编码规则以及扩展原则与方法。本标准适用于气象数据服务与交换、气象数据集汇编与管理。注：使用本标准对气象数据进行描述，便于数据的发现、访问和获取。
Introduction
Analysis of the industrial standard system framework
The modern industrial standard system is centered on the measuring instrument specifications, and includes three major modules: technical parameters, operating procedures, and quality control. The latest version of the standard has the following improvements over the previous version:
| Dimension | Old standard | New standard | Range of change |
|---|---|---|---|
| Accuracy requirement | ±0.5% | ±0.2% | Increase by 60% |
| Environmental adaptability | 10-40℃ | 5-50℃ | Range expanded by 35% |
| Calibration period | 6 months | 12 months | Extended by 100% |
Technical Specifications for Key Instruments
The standard sets clear requirements for core equipment such as spectrum analyzers:
- Wavelength repeatability ≤ 0.1nm
- Baseline drift < 0.005AU/h
- Signal-to-noise ratio ≥ 10000:1
Application Example in the Automobile Manufacturing Industry
After adopting the new standard, a certain automobile company upgraded the calibration procedure of its coordinate measuring machine, which improved the welding accuracy of its car body from 1.2mm to 0.5mm and reduced the defective rate by 42%.
Standard Implementation Roadmap
- Transition period (0-6 months): Complete equipment performance evaluation
- Renovation period (6-12 months): Upgrade/replace key instruments
- Verification period (12-18 months): Full process compliance testing
It is recommended to give priority to the adaptive transformation of environmental monitoring equipment, as the standard changes in this category are the most significant.
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