GB/T 42286.2-2022 in English
VALIDElectronic railway equipment—On board driving data recording—Part 2: Conformity testing
- Issued on:2022-12-30
- Implemented on:2023-07-01
- File Format:PDF
- Delivery:Via email within 5 business days
$612.00
| Standard No: | GB/T 42286.2-2022 |
| Document status: | VALID |
| Title in English: | Electronic railway equipment—On board driving data recording—Part 2: Conformity testing |
| Title in Chinese: | 轨道交通电子设备 车载驾驶数据记录 第2部分：一致性测试 |
| Language: | English |
| File Format: | Electronic (PDF) |
| Delivery: | Via email within 5 business days |
| Issued on: | 2022-12-30 |
| Implemented on: | 2023-07-01 |
| ICS Classification: | 45.060-Railway rolling stock |
| Chinese Classification: | S04-Basic standards and general methods |
| Professional Classification: | GB-National Standard |
| Related Keywords: | on-board driving data
electronic railway equipment data retention protection performance data record integrity electronic equipment |
| Related Topics: | train electronics
data record Rail transit on-board equipment Rail transit electronics Electronic equipment vehicle Rail transit industry data Rail transit industry data standards, |
《GB/T 42286.2-2022轨道交通电子设备 车载驾驶数据记录 第2部分：一致性测试》由TC278（全国轨道交通电气设备与系统标准化技术委员会）归口，TC278SC1（全国轨道交通电气设备与系统标准化技术委员会机车车辆电气分会）执行，主管部门为国家铁路局。
Introduction
Analysis of the core content of the standard
GB/T42286.2-2022, as a key standard for rail transit electronic equipment, stipulates the consistency test method for the on-board driving data recording system (ODDRS), which is an implementation verification of the GB/T42286.1-2022 technical specification.
Comparison of Standard Frameworks
| Test Dimensions | IEC62625-2:2016 | GB/T42286.2-2022 |
|---|---|---|
| Structural Chapters | Chapter 7 + Appendix | Chapter 8 + Appendix |
| Reference Standards | IEC60571, etc. | GB/T25119, etc. |
| Protection Parameters | Measurement Methods Not Clearly Defined | Appendix B Detailed Provisions |
Key Technical Requirements
Functional Conformance Test
Chapter 6 of the standard specifies the verification requirements for the Functional Implementation Conformance Statement (FICS):
- Data Record Integrity: Non-volatile storage media must meet ≥24h (R1 level) or ≥8d (R2 level) data retention
- Protection Performance: Verify data damage resistance through 11 types of protection codes (FA-FB/SA-SB, etc.)
- Time Synchronization: Internal clock annual error <10min, synchronization cycle ≤1 month
System Level Verification
The System Implementation Conformance Statement (SICS) specified in Chapter 7 includes:
Case: The vibration test requires that the peak acceleration be ≥ 100g (protection code SB) under a half-sine pulse, and must pass 18 different axial impact verifications.
Implementation Recommendations
Test Phase Planning
- Design Review (DR): Check FICS/SICS document conformity
- Type Test (TT): Perform the protection performance test specified in Appendix B
- Train Level Test (TLT): Verify the system functionality after installation
Frequently Asked Questions Avoidance
- Use equivalent signal generator to simulate extreme input conditions (Clause 8.2)
- Note that the standard changes the abbreviation of GPS to GNSS (Chapter 4)
- RAL color card requires the use of RGB24612040 to define orange (Clause 6.1.6)
Standard Evolution Analysis
This standard is modified to adopt IEC62625-2:2016. The main technical differences include:
- Added identification requirements for non-volatile storage media (ODDRS/MTBF abbreviations added in Chapter 4)
- Quoted GB/T28029 series to replace IEC61375 (Article 7.1.17)
- Strengthened data extraction security (Article 6.2.3 added authorization mechanism)
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