GB/T 45086.1-2024 PDF English
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GB/T 45086.1-2024: Technical requirements and test methods for on-board positioning system - Part 1: Satellite positioning ---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/GBT45086.1-2024
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 43.040.10
CCS T 36
Technical requirements and test methods for on-board
positioning system - Part 1.Satellite positioning
Issued on. NOVEMBER 28, 2024
Implemented on. JUNE 01, 2025
Issued by. State Administration for Market Regulation;
National Standardization Administration.
Table of Contents
Foreword... 3
Introduction... 5
1 Scope... 6
2 Normative references... 6
3 Terms and definitions... 7
4 Abbreviations... 9
5 Technical requirements... 10
6 Test method... 25
7 Inspection rules... 47
Appendix A (Informative) General statement provisions... 49
Appendix B (Normative) RF signal coordination parameter specifications... 56
Appendix C (Normative) Cold start state setting method for on-board satellite
positioning system... 57
Appendix D (Normative) On-board satellite positioning system test scenario... 58
Appendix E (Normative) Data processing method for positioning accuracy... 67
Appendix F (Normative) Data processing method for speed accuracy... 69
Appendix G (Normative) Data processing method for timing accuracy... 70
Appendix H (Informative) Road test of on-board satellite positioning system... 71
Appendix I (Informative) Anechoic chamber simulation test of on-board satellite
positioning system... 78
Appendix J (Informative) Durability test calculation model... 81
Foreword
This document was drafted in accordance with the provisions of GB/T 1.1-2020
"Directives for standardization - Part 1.Rules for the structure and drafting of
standardizing documents".
This document is Part 1 of GB/T 45086 "Technical requirements and test methods for
on-board positioning system". GB/T 45086 has published the following parts.
- Part 1.Satellite positioning.
Please note that some of the contents of this document may involve patents. The issuing
agency of this document does not assume the responsibility for identifying patents.
This document was proposed by the Ministry of Industry and Information Technology
of the People's Republic of China.
This document shall be under the jurisdiction of the National Technical Committee for
Automotive Standardization (SAC/TC 114).
The drafting organizations of this document. China Automotive Technology and
Research Center Co., Ltd., CATARC Automotive Inspection Center (Tianjin) Co., Ltd.,
Spirent Communications Technology (Beijing) Co., Ltd., China Quality Certification
Center Co., Ltd., Huizhou Desay SV Automotive Electronics Co., Ltd., Dalian Neusoft
Intelligent Mobility Technology Co., Ltd., Wuhan Daan Technology Co., Ltd.,
Shanghai Motor Vehicle Inspection and Certification Technology Research Center Co.,
Ltd., China Automotive Engineering Research Institute Co., Ltd., MediaTek Beats
Technologies (Beijing) Co., Ltd., Qualcomm Wireless Communications Technologies
(China) Co., Ltd., Shenzhen Hangsheng Electronics Co., Ltd., Beijing Liufen
Technology Co., Ltd., Tianjin BeiDou Satellite Navigation and Positioning Technology
Co., Ltd., Rohde & Schwarz (China) Technology Co., Ltd., Tai Douwei Electronic
Technology Co., Ltd., Shenzhen Representative Office of Swiss U-Ball Co., Ltd., China
First Automobile Group Co., Ltd., China Testing and Certification Group Co., Ltd.,
Dongfeng Motor Co., Ltd. Dongfeng Nissan Passenger Vehicle Company, Dongfeng
Motor Group Co., Ltd., Shanghai Automotive Group Co., Ltd., Shenzhen Huada
BeiDou Technology Co., Ltd., BYD Auto Industry Co., Ltd., Toyota China (Automobile)
Investment Co., Ltd., Ningbo Geely Automobile Research and Development Co., Ltd.,
Great Wall Motor Co., Ltd., Shanghai Jidu Automobile Co., Ltd., Mercedes-Benz
(China) Investment Co., Ltd., Valeo Enterprise Management (Shanghai) Co., Ltd.,
Unicore Star Technology (Beijing) Co., Ltd., BMW (China) Service Co., Ltd.
The main drafters of this document. Ji Guotian, Sun Hang, Gong Jinfeng, Jiang Guokai,
He Fujian, Ni Shouyun, Zhang Zhe, Wu Hanbing, Qu Yanping, Rong Hui, Feng Tao,
Zhang Zhiruo, Liu Xiaodong, Ding Jie, He Mingchao, Chang Jun, Huang Bo, Su Ruiqi,
Li Chunlin, Ye Ping, Chen Rui, Xie Jiangling, Chen Xuejing, Chen Shuping, Zhang
Jianwu, Yin Yue, Li Xiang, Zhang Bo, Pan Mu, Gan Binghong, Zheng Wuqiang, Meng
Peixin, Liu Yang, Li Yan, Huang Liang, Wang Wenyan, Liu Huadong, Xu Yucheng,
Deng Yimin, Zhang Dinglin, Tian Yaolei, Cao Jingdi, Zheng Yuhong, Zhang Yumin,
Zhang Duo, Wang Xiaohang, Jin Xiaoyang, Zhang Yan, Zhang Hongyang, Liu Xun.
1 Scope
This document specifies the technical requirements for on-board satellite positioning
systems and describes the corresponding test methods.
This document applies to on-board satellite positioning systems.
2 Normative references
The contents of the following documents constitute essential clauses of this document
through normative references in the text. Among them, for dated references, only the
version corresponding to that date applies to this document; for undated references, the
latest version (including all amendments) applies to this document.
GB/T 2828.1 Sampling procedures for inspection by attributes -- Part 1.Sampling
schemes indexed by acceptance quality limit (AQL) for lot-by-lot inspection
GB/T 16422.2-2022 Plastics - Methods of exposure to laboratory light sources - Part
2.Xenon-arc lamps
GB/T 18655-2018 Vehicles, boats and internal combustion engines - Radio
disturbance characteristics - Limits and methods of measurement for the protection
of on-board receivers
GB/T 19951-2019 Road vehicles - Disturbances test methods for
electrical/electronic component from electrostatic discharge
GB/T 21437.2-2021 Road vehicles - Test method of electrical disturbances from
conduction and coupling - Part 2.Electrical transient conduction along supply lines
only
3 Terms and definitions
The following terms and definitions apply to this document.
3.1
On-board satellite positioning system
A system installed on a vehicle that uses radio signals emitted by artificial satellites
for positioning, speed measurement, timing.
3.2
Positioning accuracy
The statistical value of the difference between the position output by the on-board
satellite positioning system and the actual position.
3.3
Velocity accuracy
The statistical value of the difference between the speed output by the on-board
satellite positioning system and the actual speed.
3.4
Timing accuracy
The statistical value of the difference between the time output by the on-board
satellite positioning system and the universal time coordinated (UTC).
3.5
Cold start time to first fix
The time required from the start of receiving satellite signals to the first normal
positioning of the on-board satellite positioning system, when the ephemeris,
almanac, approximate time, approximate position are unknown.
3.6
Hot start time to first fix time
The time required from the wake-up time to the first normal positioning of the on-
board satellite positioning system, when the ephemeris, almanac, approximate time,
approximate position are known.
4 Abbreviations
The following abbreviations apply to this document.
AWGN. Add White Gaussian Noise
BDS. BeiDou Navigation Satellite System
CEP. Circular Error Probable
Galileo. Galileo Navigation Satellite System
GLONASS. Global Navigation Satellite System
GNSS. Global Navigation Satellite System
5 Technical requirements
5.1 Functional requirements
5.1.1 Output
Perform the test in accordance with 6.3.1.Under the test conditions of this document,
the output of the on-board satellite positioning system meets the following requirements.
5.1.2 Mode
5.1.2.1 General requirements
The on-board satellite positioning system shall at least support BeiDou single mode.
When the on-board satellite positioning system works in BeiDou multi-mode, it shall
be tested according to 6.3.2.1 and shall have the function of switching to BeiDou single mode.
5.1.2.2 BeiDou multi-mode
5.2 Performance requirements
5.2.1 Accuracy
5.2.1.2 Dynamic positioning accuracy
5.2.1.2.1 Open sky scenario
5.2.1.3 Speed measurement accuracy
5.2.1.3.1 Open sky scenario
5.2.1.3.1.1 BeiDou multi-mode (BeiDou independent mode, BeiDou priority mode)
Perform the test in accordance with 6.4.1.1.3.1 and 6.4.2.1.3.1.The speed measurement
accuracy of the on-board satellite positioning system shall be better than 0.5 m/s
(CEP95).
5.2.2 Time to first fix
5.2.2.1 Cold start time to first fix
5.2.2.1.1 BeiDou multi-mode (BeiDou independent mode, BeiDou priority mode)
Perform the test in accordance with 6.4.1.2.1 and 6.4.2.2.1.The cold start time to first
fix of the on-board satellite positioning system shall not exceed 90 s.
5.2.2.1.2 BeiDou single mode
Perform the test in accordance with 6.4.2.2.1.The cold start time to first fix of the on-
board satellite positioning system shall not exceed 90 s.
5.2.2.2 Hot start time to first fix
5.2.3 Reacquisition time
5.2.3.1 BeiDou multi-mode (BeiDou independent mode, BeiDou priority mode)
Perform the test in accordance with 6.4.1.3 and 6.4.2.3.The reacquisition time of the
on-board satellite positioning system shall not exceed 5 s.
5.2.3.2 BeiDou single mode
Perform the test in accordance with 6.4.2.3.The reacquisition time of the on-board
satellite positioning system shall not exceed 5 s.
5.2.4 Sensitivity
5.2.4.1 Acquisition sensitivity
5.2.4.1.1 BeiDou multi-mode (BeiDou independent mode, BeiDou priority mode)
Perform the test in accordance with 6.4.1.4.1 and 6.4.2.4.1.The acquisition sensitivity
of the on-board satellite positioning system shall be better than -138 dBm.
5.2.4.1.2 BeiDou single mode
Perform the test in accordance with 6.4.2.4.1.The acquisition sensitivity of the on-
board satellite positioning system shall be better than -138 dBm.
5.2.4.2 Reacquisition sensitivity
5.2.4.2.1 BeiDou multi-mode (BeiDou independent mode, BeiDou priority mode)
Test according to 6.4.1.4.2 and 6.4.2.4.2.The on-board satellite positioning system's
reacquisition sensitivity shall be better than -145 dBm.
5.2.4.2.2 BeiDou single mode
Test according to 6.4.2.4.2.The on-board satellite positioning system's reacquisition
sensitivity shall be better than -145 dBm.
5.2.4.3 Tracking sensitivity
5.2.4.3.1 BeiDou multi-mode (BeiDou independent mode, BeiDou priority mode)
Test according to 6.4.1.4.3 and 6.4.2.4.3.The on-board satellite positioning system's
tracking sensitivity shall be better than -150 dBm.
6 Test method
6.1 Test conditions
6.1.1 Test environment conditions
Unless otherwise specified, the test environment conditions shall comply with the
provisions of Table 8.
6.1.2 Test voltage conditions
Unless otherwise specified, the test voltage conditions shall comply with the provisions
of Table 9.The test conditions of other voltage specification systems can be negotiated.
6.1.3 Test connection
6.3 Functional test
6.3.1 Output
Put the on-board satellite positioning system in cold start state according to Appendix
C. The on-board satellite positioning system is powered on; the satellite signal simulator
runs the open sky dynamic test scenario according to D.1.1 and Table D.4 in Appendix
D; maintains for 120 s; records the current time as T1.Count the valid data ratio from
T1 to T1+1800 s. Check the output message information and update rate.
When the on-board satellite positioning system achieves normal dynamic positioning,
reduce the number of visible satellites to 2; check the validity flag or mode indicator bit
of GGA, VTG, GSA, RMC output.
6.3.2 Mode
6.3.2.1 BeiDou single-mode switching function
Check the BeiDou single-mode switching function of the on-board satellite positioning
system.
6.3.2.2 Multimode mode
6.4 Performance test
6.4.1 Multi-mode signal test
6.4.1.1 Accuracy test
6.4.1.1.1 Static positioning accuracy
6.6 RF signal coordination test (BeiDou independent mode, BeiDou priority mode,
BeiDou single mode)
Set the satellite signal simulator to simulate the GNSS signal at a fixed position. The
satellite signal simulator needs to simultaneously output signals of all frequencies of all
satellite constellations supported by the on-board satellite positioning system.
Put the on-board satellite positioning system in cold start state according to Appendix
C. Power on the on-board satellite positioning system; the satellite signal simulator runs
the open sky static test scenario according to D.1.1 and Table D.3.
7 Inspection rules
7.1 Sampling and grouping of the test [translator's note. should be specimen]
The samples are drawn according to the one-time sampling plan specified in GB/T
2828.1, with at least 1 sample per group, for a total of 7 groups. Each sample shall be
assigned a sample number and a group number.
The on-board satellite positioning system is tested in groups in the following order.
7.2 Qualification judgment
The test items of the on-board satellite positioning system shall all meet the specified
requirements. If one item is unqualified, double the number of samples can be re-drawn
for re-inspection of the unqualified item. If there are still unqualified items, the batch
of samples will be judged as unqualified.
...... Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al.
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