JJG 1122-2015 English PDF

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JJG 1122-2015: Traffic Loop-based Speed Meters
Status: Valid

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Basic data

Standard ID: JJG 1122-2015 (JJG1122-2015)
Description (Translated English): Traffic Loop-based Speed Meters
Sector / Industry: Metrology & Measurement Industry Standard
Classification of Chinese Standard: A53
Classification of International Standard: 17.160
Word Count Estimation: 13,186
Date of Issue: 2015-12-07
Date of Implementation: 2016-03-07
Quoted Standard: JJG 527-2007; GB/T 21255-2007; JT/T 455-2001
Regulation (derived from): ?AQSIQ 2015 Nian (No.148)
Issuing agency(ies): General Administration of Quality Supervision, Inspection and Quarantine
Summary: This standard applies to fixed installed on a road by a group of the sense coil traveling speed of the vehicle to measure vehicle speed sense coil system (hereinafter referred to as the sense coil system speed) performance measurement speed of initial verification, verification and follow-up use checks.

JJG 1122-2015: Traffic Loop-based Speed Meters

---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.
(Vehicle speed sense coil system test procedures) State verification procedures People's Republic of China Vehicle speed sense coil system Issued on. 2015-12-07 2016-01-30 implementation The State Administration of Quality Supervision, Inspection and Quarantine released Vehicle speed sense coil system Verification Regulation Focal point. the National Technical Committee of shock and vibration measurement speed Main drafting unit. Jiangsu Province Institute of Metrology Fujian Institute of Metrology Participated in the drafting unit. Xi'an Institute of Measurement On Jiangsu You Technology Industrial Co. Ltd. New Technology Co., Ltd., Jiangsu You Tesi This procedure entrust national shock and vibration speed measurement technology committee responsible for the interpretation The main drafters of this procedure. Lin Zhongyang (Jiangsu Province Institute of Metrology) Jian-Hui Lin (Fujian Institute of Metrology) Drafters participate. Chen Li (Jiangsu Province Institute of Metrology) Masing (Fujian Institute of Metrology) Zhang Xiao (Xi'an Institute of Measurement) Chen Gang (Jiangsu You on Science and Technology Industrial Co., Ltd.) Li Zhen (Jiangsu You Tesi New Technology Co., Ltd.)

table of Contents

Introduction (Ⅱ) 1 Scope (1) 2. References (1) 3 Terms (1) Coil pitch 3.1 (1) Coil Width 3.2 (1) 4 Overview (1) 5 metering performance requirements (2) 5.1 speed range (2) 5.2 analog tachometer error (2) 5.3 site speed error (2) 6 General Requirements (2) 6.1 Appearance (2) 6.2 Requirements (3) 7 control of measuring instruments (3) 7.1 test conditions (3) 7.2 Verification Project (3) 7.3 Verification Methods (4) 7.4 test results processing (4) 7.5 test cycle (4) A vehicle velocity sense coil system test records (recommended) format (5) Appendix Appendix B test certificate page format (6) Appendix C test results in the notice page format (7)

Introduction

JJG 1122-2015 "vehicle speed sense coil system," according to JJF1001-2011 "common terminology and measurement Definitions ", JJF1002-2010" national verification procedures write rules ", JJF1059.1-2012" measurement uncertainty Evaluation and expression "and other basic family of specifications developed. JJG 1122-2015 "vehicle speed sense coil system" replaces JJG 527-2007 "speeding vehicles automatically Monitoring systems "principle in the sense coil gun parts, and a sense coil width dimension of the limit. This procedure reference GB/T 21255-2007 "vehicle speedometer", JJG 527-2007 "vehicle speed automatic monitoring system" JT/T 455-2001 "loop vehicle detector" to develop. The regulations previously issued as follows. --- JJG 527-2007. Vehicle speed sense coil system test procedures

1 Scope

The order applies to fixed installed on a road by a group of sense coil motor vehicle speed measurement Vehicle speed sense coil system (hereinafter referred to as the sense coil system speed) performance measurement speed of initial verification, subsequent Verification and use of checks. 2. References JJG 527-2007 vehicle speed automatic monitoring system GB/T 21255-2007 vehicle speedometer JT/T 455-2001 loop vehicle detectors For dated references, only the dated edition applies to this procedure; undated reference documents Member, the latest edition (including any amendments) applies to this procedure.

3 Terms

JJG 527-2007, GB/T 21255-2007 and define the following terms and definitions apply to this procedure. 3.1 coil spacing loopspacing A sense coil in the same lane installed in a vehicle traveling direction, two adjacent coils speed front Distance margin (ie vehicles go through the edge) between. 3.2 coil width loopwidth Sense coil mounted on the road, both sides of the edge (ie, the vehicle traveling direction and parallel to the edge) between distance.

4 Overview

Velocity sense coil system is a fixed installation on the road, by measuring the vehicle through a group (two or Time difference or more sense coil) by a certain distance is buried under the pavement of the same size in the induction coil, calculated The traveling speed of the vehicle and automatically record the vehicle's image, speed, date, time, location and other relevant information Monitoring system. The system usually consists speed unit, an image processing unit, a communication unit and auxiliary lighting unit and other components composition. Vehicle Speed Detection schematic diagram of the sense coil gun system shown in Figure 1. ......

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