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GB/T 20609-2023 English PDF

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US$519.00 · In stock
Delivery: <= 5 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 20609-2023: Traffic information collection - Microwave traffic flow detector
Status: Valid

GB/T 20609: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 20609-2023	519	Add to Cart	5 days	Traffic information collection - Microwave traffic flow detector	Valid
GB/T 20609-2006	759	Add to Cart	4 days	Traffic information collection -- Microwave traffic flow detector	Obsolete

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Basic data

Standard ID: GB/T 20609-2023 (GB/T20609-2023)
Description (Translated English): Traffic information collection - Microwave traffic flow detector
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: R86
Classification of International Standard: 03.220.20; 35.240.60
Word Count Estimation: 26,214
Date of Issue: 2023-03-17
Date of Implementation: 2023-10-01
Older Standard (superseded by this standard): GB/T 20609-2006
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration

GB/T 20609-2023: Traffic information collection - Microwave traffic flow detector

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
ICS 03.220.20;35.240.60 CCSR86 National Standards of People's Republic of China Replacing GB/T 20609-2006 Traffic Information Acquisition Microwave Traffic Flow Detector Released on 2023-03-17 2023-10-01 implementation State Administration for Market Regulation Released by the National Standardization Management Committee

Preface I 1 Scope 1 2 Normative references 1 3 Terms and Definitions 1 4 Technical requirements 2 5 Test method 6 6 Inspection rules 10 7 Labeling, packaging, transportation and storage 11 Appendix A (Normative) Functional Test 13 Appendix B (Informative) Test Result Record Form 19 Appendix C (Normative) Radiation Test Site 20 Appendix D (Normative) Radiation General Test Method 21 Reference 23

foreword

This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for Standardization Work Part 1.Structure and Drafting Rules for Standardization Documents" drafting. This document replaces GB/T 20609-2006 "Microwave Traffic Flow Detector for Traffic Information Acquisition", and is consistent with GB/T 20609-2006 In addition to structural adjustments and editorial changes, the main technical changes are as follows. ---Changed the definitions of "microwave traffic flow detector", "occupied bandwidth", "spurious emission" and "head time" (see 3.1, 3.2, 3.3 and 3.8, 3.1, 3.5, 3.7 and 3.8 of the.2006 edition); --- Deleted the terms "center frequency", "frequency tolerance", "beam width", "average power (of radio transmitter)", "vehicle distance" and Definitions (see 3.2, 3.3, 3.4, 3.6 and 3.9 of the.2006 edition); ---Increased "detection section", "traffic flow", "section average speed", "time occupancy rate", "inter-vehicle time distance", "equivalent omnidirectional radiation power" (eirp)" terms and definitions (see 3.4, 3.5, 3.6, 3.7, 3.9 and 3.10); --- Changed the relevant provisions of the general requirements (see 4.1.1, 4.1.1 of the.2006 edition); ---Increased "vehicle flow", "average vehicle speed of section", "vehicle flow in divided lane", "average vehicle speed in divided lane", "time occupancy rate in divided lane" and "minute Relevant regulations on the average headway of a lane" and "average time headway by lane" (see 4.1.2, 4.1.3, 4.1.4, 4.1.5, 4.1.6, 4.1.7 and 4.1.8); ---Changed the "detection distance" regulations (see 4.2, 4.1.2.1 of the.2006 edition); ---Deleted the "detection accuracy" provisions (see 4.1.2.2 of the.2006 edition); ---Change "wireless performance requirements" to "radio frequency performance requirements" (see 4.3, 4.2 of the.2006 edition); ---Deleted the "center frequency" provisions (see 4.2.1 of the.2006 edition); --- Increase the "frequency range" provisions (see 4.3.1); --- Delete the "frequency tolerance" provisions (see 4.2.2 of the.2006 edition); ---Changed the "occupied bandwidth" provisions (see 4.3.2, 4.2.3 of the.2006 edition); --- Increase the "transmission power" provisions (see 4.3.3); ---Deleted the "average power" provisions (see 4.2.4 of the.2006 edition); ---Changed the provisions of "spurious emissions" (see 4.3.4, 4.2.5 of the.2006 edition); ---Delete the provisions of "antenna performance requirements" (see 4.2.6 of the.2006 edition); --- Changed the relevant regulations on communication interface, communication rate and data acquisition (see 4.4.1, 4.4.3 and 4.4.4, 4.3.1,.2006 edition 4.3.3 and 4.3.4); ---Deleted the relevant provisions of "synchronous mode", "external timing mode" and "internal clock" (see 4.4.1, 4.4.2 and.2006 edition 4.4.3); ---Changed the provisions of "synchronization requirements" (see 4.5, 4.4 of the.2006 edition); --- Change "power supply" to "power supply adaptability", and change the relevant regulations (see 4.10.1, 4.9.1 of the.2006 edition); --- Change "storage capacity" to "storage", and change the relevant regulations (see 4.10.2, 4.9.2 of the.2006 edition); --- Changed the "operating temperature" (see 4.10.3.2, 4.9.3.2 of the.2006 edition); --- Deleted "test equipment and requirements" (see 5.1 of the.2006 edition); --- Increase the "detection distance test" provisions (see 5.2); ---Change "wireless performance parameter test" to "radio frequency performance test" and change the relevant regulations (see 5.3, 5.3 of the.2006 edition); ---Changed the provisions of "interface test" (see 5.4, 5.4 of the.2006 edition); --- Increase the "synchronous test" provisions (see 5.5); ---Changed the provisions of "power adaptability" (see 5.10.1, 5.9.1 of the.2006 edition); --- Change "storage capacity" to "storage", and change the relevant regulations (see 5.10.2, 5.9.2 of the.2006 edition); ---Changed the provisions of "inspection items" (see Table 3, Table 1 of the.2006 edition); ---Changed the provisions of "product logo" and "package logo" (see 7.1.1, 7.1.2, 7.1.1, 7.1.2 of the.2006 edition); ---Changed the provisions of "packaging" (see 7.2, 7.2 of the.2006 edition); --- Deleted "main test equipment requirements" (see Appendix A of the.2006 edition); --- Deleted the description of the test function in the test environment requirements (see B.1 of the.2006 edition); --- Changed the test environment and project table (see Table A.1, Table B.1 of the.2006 edition); --- Changed the requirements for test environment conditions (see A.1.2, B.1 of the.2006 edition); --- Changed the schematic diagram of the test environment of the real road section (see Figure A.1, Figure B.1 of the.2006 edition); ---Changed the regulations on the installation of real road section detectors and traffic flow sampling (see A.1.4, A.1.5, B.1 of the.2006 edition); --- Changed the schematic diagram of the test environment of the proving ground (see Figure A.2, Figure B.2 of the.2006 edition); --- Changed the regulations on the test environment of the proving ground (see A.1.7, A.1.8, A.1.9, B.1 of the.2006 edition); --- Increase the scope of application of the traffic flow test method (see A.2.1); ---Changed the calculation formula of traffic flow detection accuracy [see formula (A.1), formula (B.1) of the.2006 edition]; --- Change "average speed test" to "section average speed test" (see A.3, B.3 of the.2006 edition); --- Increase the scope of application of the test method for the average vehicle speed (see A.3.1); --- Increased the provisions of the speed test equipment (see A.3.3); ---Changed the calculation formula of average vehicle speed detection accuracy [see formula (A.2), formula (B.2) of the.2006 edition]; --- Change the "time occupancy test" to "lane time occupancy, average headway, average headway test" (see A.4, B.4 of the.2006 edition); ---Changed the calculation formula of the detection accuracy of lane-dividing time occupancy [(see formula (A.3), formula (B.3) of the.2006 edition]; --- Added the test method and calculation formula of the detection accuracy of the average headway of the lanes and the average headway of the lanes (see A.4.4, A.4.5); --- Changed the detector installation distance of the detection distance test (see A.5.1, B.5.1 of the.2006 edition); ---Deleted the provisions of the detection distance test under special requirements (see B.5.6 of the.2006 edition); --- Changed the detection distance test regulations (see A.5.3, B.5.3, B.5.4, B.5.5 of the.2006 edition); --- Added "Test Result Record Form" (see Appendix B); --- Increased the provisions of "radiation test site" (see Appendix C); ---Delete the provisions of "Wireless Performance Parameter Test" (see Appendix C of the.2006 edition); --- Increased the provisions of "radiation general test method" (see Appendix D). This document is proposed and managed by the National Intelligent Transportation System Standardization Technical Committee (SAC/TC268). This document was drafted by. Highway Research Institute of the Ministry of Transport, National Radio Monitoring Center Testing Center, Beijing Muniu Linghang Technology Co., Ltd., Wuhu Sensitech Intelligent Technology Co., Ltd., Beijing Chuansu Microwave Technology Co., Ltd., Shanghai Huichang Intelligent Transportation System Co., Ltd. Company, Nanjing Huiershi Intelligent Technology Co., Ltd. The main drafters of this document. Liu Nan, Yi Qian, Yang Fengman, Cen Yanqing, Song Xianghui, Liu Xiaoyong, Li Gang, Li Meili, Cheng Jin, Li Yanbing, Ji Lianying, Li Yanlong, Fan Wenxu, Hua Bin, Xie Xiaopeng, Xu Jianhua, Chen Junde. This document was first published in.2006, and this is the first revision. Traffic Information Acquisition Microwave Traffic Flow Detector

1 Scope

This document specifies the technical requirements, test methods, inspection rules, and marking, packaging, transportation and storage of microwave traffic detectors. Require. This document applies to microwave traffic flow detectors for measuring vehicle traffic parameters on roads.

2 Normative references

The contents of the following documents constitute the essential provisions of this document through normative references in the text. Among them, dated references For documents, only the version corresponding to the date is applicable to this document; for undated reference documents, the latest version (including all amendments) is applicable to this document. GB/T 191 Packaging, storage and transportation icons GB/T 2423.1 Environmental testing for electrical and electronic products - Part 2.Test methods Test A. Low temperature GB/T 2423.2 Environmental testing for electric and electronic products - Part 2.Test methods Test B. High temperature GB/T 2423.3 Environmental testing - Part 2.Test methods Test Cab. Constant damp heat test GB/T 2423.5 Environmental testing - Part 2.Test methods Test Ea and guidelines. Shock GB/T 2423.10 Environmental testing Part 2.Test method Test Fc. Vibration (sinusoidal) GB/T 4208-2017 Enclosure protection level (IP code) GB/T 4892 Rigid cuboid transport packaging dimension series GB/T 5080.7 Verification test plan for failure rate and mean time between failures under the assumption of constant failure rate for equipment reliability test GB/T 9254.2 Electromagnetic compatibility of information technology equipment, multimedia equipment and receivers Part 2.Immunity requirements GB/T 13384 General Technical Specifications for Packaging of Mechanical and Electrical Products

3 Terms and Definitions

The following terms and definitions apply to this document. 3.1 By transmitting low-energy microwave signals to the vehicles in the detection area, the microwave signals reflected by the vehicles are obtained, and the road traffic flow is identified and detected. parameter device. 3.2 Occupied bandwidth occupiedbandwidth A bandwidth in which, for a given emission, the average power emitted outside the lower and upper frequency limits of the bandwidth is equal to the total β/2 of the average power. Note. Unless otherwise specified in ITU-R Recommendations for certain appropriate emission categories, the value of β/2 should be taken as 0.5%. [Source. GB/T 13622-2012, 2.6.19] 3.3 spurious emission The emission level of one or more frequencies outside the necessary bandwidth may be reduced without affecting the transmission of the corresponding information. ......

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Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of GB/T 20609-2023_English be delivered?

Answer: Upon your order, we will start to translate GB/T 20609-2023_English as soon as possible, and keep you informed of the progress. The lead time is typically 3 ~ 5 working days. The lengthier the document the longer the lead time.

Question 2: Can I share the purchased PDF of GB/T 20609-2023_English with my colleagues?

Answer: Yes. The purchased PDF of GB/T 20609-2023_English will be deemed to be sold to your employer/organization who actually pays for it, including your colleagues and your employer's intranet.

Question 3: Does the price include tax/VAT?

Answer: Yes. Our tax invoice, downloaded/delivered in 9 seconds, includes all tax/VAT and complies with 100+ countries' tax regulations (tax exempted in 100+ countries) -- See Avoidance of Double Taxation Agreements (DTAs): List of DTAs signed between Singapore and 100+ countries

Question 4: Do you accept my currency other than USD?

Answer: Yes. If you need your currency to be printed on the invoice, please write an email to Sales@ChineseStandard.net. In 2 working-hours, we will create a special link for you to pay in any currencies. Otherwise, follow the normal steps: Add to Cart -- Checkout -- Select your currency to pay.

Question 5: Should I purchase the latest version GB/T 20609-2023?

Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 20609-2023 even if the enforcement date is in future. Complying with the latest version means that, by default, it also complies with all the earlier versions, technically.