GB/T 42286.2-2022
Electronic railway equipment—On board driving data recording—Part 2: Conformity testing (English Version)
- Standard No.
- GB/T 42286.2-2022
- Language
- Chinese, English version preview
- Release Date
- 2022
- Published By
- General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
- Latest
- GB/T 42286.2-2022
- Scope
- This document specifies a standardized test method (expanding the related concepts of function and system description by introducing functional realization conformance description, system realization conformance description and test implementation additional information) to verify the implementation and compliance of the on-board driving data recording system. The consistency between the requirements specified in GB/T42286.1-2022. This document specifies the pass criteria for conformance testing of designed and manufactured in-vehicle driving data recording systems. This document specifies the list of requirements including GB/T42286.1-2022, and the relevant acceptance conditions for the on-board driving data recording system during the design review, type inspection and factory inspection stages. For the train-level design review phase and the train-level test phase, the conformance test method provided in this document is applicable to the on-board driving data recording system.
- 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)
GB/T 42286.2-2022 Referenced Document
- GB/T 25119 Railway applications—Electronic equipment used on rolling stock
- GB/T 28029.10-2020 Electronic railway equipment—Train communication network(TCN)—Part 3-2:Multifunction Vehicle Bus(MVB)conformance testing
- GB/T 28029.11-2020 Electronic railway equipment—Train communication network(TCN)—Part 3-3:CANopen Consist Network（CCN）
- GB/T 28029.2-2020 Electronic railway equipment—Train communication network (TCN)—Part 2-1: Wire Train Bus（WTB）
- GB/T 28029.3-2020 Electronic railway equipment—Train communication network (TCN)—Part2-2: Wire Train Bus（WTB）conformance testing
- GB/T 28029.4-2020 Electronic railway equipment—Train communication network (TCN)—Part2-3: TCN communication profile
- GB/T 28029.5-2020 Electronic railway equipment—Train communication network (TCN)—Part 2-4: TCN communication profile
- GB/T 28029.6-2020 Electronic railway equipment—Train communication network (TCN)—Part 2-5: Ethernet Train Backbone（ETB）
- GB/T 28029.7-2020 Electronic railway equipment—Train communication network (TCN)—Part 2-6: On-board to ground communication
- GB/T 28029.8-2020 Electronic railway equipment—Train communication network (TCN）—Part 2-7: Radio based Wireless Train Backbone (WLTB)
- GB/T 28029.9-2020 Electronic railway equipment—Train communication network(TCN)—Part 3-1: Multifunction Vehicle Bus（MVB）
- GB/T 32347.1 Railway applications.Environmental conditions for equipment.Part 1:Equipment on board rolling stock
GB/T 42286.2-2022 history
- 2022 GB/T 42286.2-2022 Electronic railway equipment—On board driving data recording—Part 2: Conformity testing