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JJF 2071-2023 English PDF

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JJF 2071-2023: Calibration Specification for Portable Intelligent Positioning and Timing Terminals
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JJF 2071-2023English449 Add to Cart 4 days [Need to translate] Calibration Specification for Portable Intelligent Positioning and Timing Terminals Valid JJF 2071-2023

Standard similar to JJF 2071-2023

JJF 2062   JJF 2061   JJG 2071   

Basic data

Standard ID JJF 2071-2023 (JJF2071-2023)
Description (Translated English) Calibration Specification for Portable Intelligent Positioning and Timing Terminals
Sector / Industry Metrology & Measurement Industry Standard
Word Count Estimation 22,228
Date of Issue 2023-10-12
Date of Implementation 2024-04-12
Issuing agency(ies) State Administration for Market Regulation

JJF 2071-2023: Calibration Specification for Portable Intelligent Positioning and Timing Terminals


---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.
National Metrology Technical Specifications of the People's Republic of China Calibration specifications for portable intelligent positioning and timing terminals Released on 2023-10-12 Implemented on 2024-04-12 Released by the State Administration for Market Regulation Portable intelligent positioning and timing terminal Calibration specifications andTimingTerminals Responsible unit: National Satellite Navigation Application Special Measurement and Testing Technical Committee Main drafting unit: Beijing Institute of Metrology and Testing Sciences National Time Service Center of Chinese Academy of Sciences Participating units in the drafting: Beijing Radio Measurement and Testing Institute Liaoning Provincial Institute of Metrology China Academy of Information and Communications Technology This specification is entrusted to the National Satellite Navigation Application Special Measurement and Testing Technical Committee to be responsible for the interpretation The main drafters of this specification: Zhong Chongxia (Beijing Institute of Metrology and Testing Sciences) Liang Wei (Beijing Institute of Metrology and Testing Sciences) Gao Chunliu (Beijing Institute of Metrology and Testing Sciences) Li Bian (National Time Service Center, Chinese Academy of Sciences) Participating drafters: Yan Dongliang (Beijing Radio Measurement and Testing Institute) Li Nuo (Liaoning Institute of Metrology) Chen Xiaochen (China Academy of Information and Communications Technology)

Table of contents

Introduction(Ⅱ) 1 Scope(1) 2 Cited documents(1) 3 Overview(1) 4 Metering characteristics(1) 4:1 Positioning deviation(1) 4:2 Speed measurement deviation(1) 4:3 Current time synchronization error (1) 5 Calibration conditions(2) 5:1 Environmental conditions(2) 5:2 Measurement standards and other equipment(2) 6 Calibration items and calibration methods (2) 6:1 Calibration items (2) 6:2 Calibration method(3) 7 Calibration result expression(6) 8 Recalibration time interval(6) Appendix A Original record reference format (7) Appendix B Reference format of inner pages of calibration certificate (9) Appendix C Example of uncertainty assessment of measurement results (10)

Introduction

JJF 1071-2010 "Rules for Writing National Measurement Calibration Specifications", JJF 1001-2011 "General Measurement Terminology and Definition" and JJF 1059:1-2012 "Evaluation and Expression of Measurement Uncertainty" jointly support the preparation of this specification basic series of specifications: This specification includes the measurement requirements and specific calibration items for portable intelligent positioning and timing terminals: The main measurement characteristics It should include positioning deviation, speed measurement deviation and current time synchronization error: This specification is released for the first time: Calibration specifications for portable intelligent positioning and timing terminals

1 Scope

This specification applies to portable intelligent positioning meters with global navigation satellite system satellite navigation positioning and timing functions: Calibration of the terminal:

2 cited documents

This specification references the following documents: JJG722 standard digital clock verification procedures JJF 1403 Global Navigation Satellite System (GNSS) receiver (time measurement type) calibration specifications JJF 1901 Calibration Specification for Analog Precision Clocks For dated references, only the dated version applies to this specification; for undated references, only the dated edition applies: The latest version (including all modification orders) shall apply to this specification:

3 Overview

The portable intelligent positioning and timing terminal (hereinafter referred to as the positioning and timing terminal) receives the global navigation satellite system (GNSS) signals realize autonomous positioning and timing, mainly composed of main controller, positioning module, timing module, battery, etc: Partially composed, some terminals also include storage units and display screens, and their composition is shown in Figure 1: Positioning and timing terminals are widely used It is widely used in fields such as outdoor adventures, field outings, disaster area rescue, and military collaborative operations: Figure 1 Principle block diagram of portable intelligent positioning and timing terminal

4 Metering characteristics

4:1 Positioning deviation Better than 15m: 4:2 Speed measurement deviation Better than ±1km/h: 4:3 Current time synchronization error a) Better than ±1μs (with 1PPS output);

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