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GB/T 34428.5-2017: Communication rules of the devices of surveillance and control system for expressway -- Part 5: Tunnel environment detector
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| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 34428.5-2017 | English | 279 |
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Communication rules of the devices of surveillance and control system for expressway -- Part 5: Tunnel environment detector
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GB/T 34428.5-2017
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Basic data | Standard ID | GB/T 34428.5-2017 (GB/T34428.5-2017) | | Description (Translated English) | Communication rules of the devices of surveillance and control system for expressway -- Part 5: Tunnel environment detector | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | R87 | | Classification of International Standard | 93.080.30 | | Word Count Estimation | 14,111 | | Date of Issue | 2017-09-29 | | Date of Implementation | 2018-04-01 | | Issuing agency(ies) | General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China | GB/T 34428.5-2017: Communication rules of the devices of surveillance and control system for expressway -- Part 5: Tunnel environment 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.
Communication rules of the devices of surveillance and control system for expressway-Part 5. Tunnel environment detector
ICS 93.080.30
R87
National Standards of People's Republic of China
Expressway monitoring facilities communications regulations
Part 5. Tunnel environment detectors
Part 5.Tunnelenvironmentdetector
2017-09-29 Posted
2018-04-01 implementation
General Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
China National Standardization Administration released
Directory
Foreword Ⅲ
1 Scope 1
2 Normative references 1
3 Terms and definitions 1
4 communication procedures 2
Foreword
GB/T 34428 "expressway monitoring facilities communications regulations" is divided into six parts.
--- Part 1. General rules;
--- Part 2. Vehicle detector;
--- Part 3. LED variable information signs;
--- Part 4. Weather detector;
--- Part 5. Tunnel environment detector;
--- Part 6. Map board.
This section GB/T 34428 Part 5.
This standard was drafted in accordance with the rules given in GB/T 1.1-2009.
This part of the National Traffic Engineering Facilities (Highway) Standardization Technical Committee (SAC/TC223) and centralized.
This part of the drafting unit. Ministry of Transport Road Research Institute, Beijing Public Branch Feida Traffic Engineering Development Co., Ltd..
The main drafters of this section. Chen Guangwu, Su Haoran, Zhao Zi Cheng, Hu Yun, Lu Hongyan, Li Qian.
Expressway monitoring facilities communications regulations
Part 5. Tunnel environment detectors
1 Scope
This section GB/T 34428 specifies the terms and definitions of tunnel environmental detectors used for highway monitoring and communication procedures.
This section applies to highway monitoring system in the host computer and tunnel environment detector data communication between the process.
2 Normative references
The following documents for the application of this document is essential. For dated references, only the dated version applies to this article
Pieces. For undated references, the latest edition (including all amendments) applies to this document.
Information technology - Information exchange - Seven - digit coded character set
GB/T 2311 Information technology character code structure and expansion technology
Information processing - Eight bit code structure and coding rules for information exchange
GB/T 34428.1-2017 Expressway monitoring facilities communications protocols Part 1. General procedures
3 Terms and definitions
The following terms and definitions apply to this document.
3.1
Tunnel environmental indicators tunnelenvironmentindicators
In this section, environmental indicators refer to the environmental parameters used for expressway tunnel traffic operations, including. carbon monoxide concentration, visibility (smoke
Fog concentration), brightness, wind speed and direction.
3.2
Carbon monoxide concentration of carbon monoxide
Carbon monoxide concentration in the air per unit volume of CO, in units of 10-6.
3.3
Visibility attenuation coefficient visibilitydimmingcoefficient
VI mainly reflects the concentration of smoke or dust in the environment, in units of 1/m (1/m).
3.4
Luminance
The luminous intensity of a certain point of the surface of the light source in a given direction and the orthographic projection surface of the same on a plane perpendicular to the direction
Plot ratio, in candela per square meter (cd/m2). Usually in the tunnel and tunnel each installed a light intensity sensor.
3.5
Windspeedanddirection
TW The horizontal distance traveled by the air per unit of time in meters per second (m/s). The measured value is expressed as a positive/negative wind direction.
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