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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
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GB/T 45086.1-2024: Technical requirements and test methods for on-board positioning system - Part 1: Satellite positioning


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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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