HJ 1239.1-2021 Translated English of Chinese Standard (HJ1239.1-2021): Technical specification for emission remote supervision system of heavy-duty vehicles - Part 1: On-board terminal [Buy--download True-PDF in 3-second: https://play.google.com/books > Sign in > This BOOK > "3-dots" > Export > Save as "*.pdf"]

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This standard specifies the technical requirements for on-board terminals of emission remote monitoring systems of heavy-duty vehicle, including functions, performance requirements, test methods. This standard applies to equipment, which is installed on heavy-duty vehicles, for collecting, storing, transmitting vehicle's OBD information and engine emission data.

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Foreword
3
Scope
4
Terms and definitions
5
General requirements
6
Functional requirements
7
Performance requirements
11
Test methods
12
Implementation requirements
13
Appendix A Normative Test method of onboard terminal
14
Appendix B Normative Test of onboard terminal security
17
Normative Test of data transmission positioning data consistency
20

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