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GB/T 26771-2011: The setting specification for microwave traffic detector
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GB/T 26771-2011: The setting specification for microwave traffic detector

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The setting specification for microwave traffic detector ICS 03.220.20 R86 National Standards of People's Republic of China Microwave traffic flow detector settings Issued on. 2011-07-20 2011-12-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Foreword

Appendix A of this standard is an informative annex. This standard by the National Intelligent Transportation System Standardization Technical Committee (SAC/TC268) and focal points. This standard was drafted. Transportation Research Institute of Highway Ministry of Transport, Beijing Hua Tong Technology Co., Ltd. to far. The main drafters of this standard. Zhu Yue Ji, Hou satellites. Microwave traffic flow detector settings

1 Scope

This standard specifies the Microwave traffic flow detector (hereinafter referred to as the detector) is set procedures set laterally, forward settings, and other related requirements. This standard applies to two (or more) highway, urban trunk roads and intersections detector settings.

2 Normative references

The following documents contain provisions which, through reference in this standard and become the standard terms. For dated references, subsequent Amendments (not including errata content) or revisions do not apply to this standard, however, encourage the parties to the agreement are based on research Whether the latest versions of these documents. For undated reference documents, the latest versions apply to this standard. GB/T 20609-2006 traffic information collection Microwave traffic flow detector GA297-2001 vehicle speedometer General technical conditions

3 Terms and Definitions

The following terms and definitions apply to this standard. 3.1 Microwave traffic flow detector microwavetrafficdetector Low-emission energy to the vehicle within the detection area of \u200b\u200bthe microwave signal, through the identification of the vehicle reflected microwave signal detected from road traffic Equipment through parameters. [GB/T 20609-2006, Definition 3.1] 3.2 Rear distance backspace Recently a need to probe the boundaries of the lanes of the vertical distance from the detector device. 3.3 Long car longvehicle By detecting the time point greater than the average 2.5 times the vehicle is detected by the time the vehicle. 3.4 Detection area detectarea The detector detects the range of road vehicles. 3.5 Beamwidth beamwidth Within the main beam detector emitted a given plane, angular deviation loss 3dB when the angle between the two directions around the main shaft. [GB/T 20609-2006, the definition 3.4]

4 Setting procedure

Setting 4.1 installation location 4.1.1 single point detector settings, choose the appropriate side of the road, lane facilities, such as road-side column, poles, mast, overpass, pedestrian crossing the street day Bridges. 4.1.2 When the same link set up multi-detector spacing should be noted that the device, in order to avoid the same microwave frequencies interfere with each other. 4.1.3 detector detection area should not have a significant block, such as. reinforced concrete buildings, metal plates, and other dense canopy. ...