GB/T 45086.1-2024Technical requirements and test methods for on-board positioning systems - Part 1: Satellite positioning (English PDF)

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

GB/T 45086.1 is the first part of the Chinese standard for on-board positioning systems and it covers satellite positioning. A vehicle's position is no longer only a navigation convenience: it feeds the emergency call system, the insurance telematics, the road tolling, the V2X messages and, in an automated vehicle, the control loop itself, and each of those needs a stated accuracy and a stated failure behaviour rather than a best effort. The document sets the composition and functional requirements of the on-board satellite positioning system, the performance requirements, that is the positioning accuracy in the horizontal and vertical planes, the velocity and time accuracy, the time to first fix cold and hot, the reacquisition time, the sensitivity and the continuity and availability, together with the environmental and EMC requirements, and it describes the test methods for each, including the laboratory tests with a signal simulator and the road tests. It covers BeiDou as the primary constellation alongside the others. For a carmaker or a telematics supplier selling into China, this is the specification a positioning unit is qualified against.

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

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...

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.

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Notes and Explanations

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