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Comprehensive solution for noise monitoring system
Comprehensive solution for noise monitoring system

chad Comprehensive solution for noise monitoring system

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chadComprehensive solution for noise monitoring system

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Product Description

Comprehensive Solution of Noise Monitoring System in Functional Area

Background

Policy requirements

On December 24, 2021, the the People's Republic of China Noise Pollution Prevention and Control Law (the "Noise Law") was officially promulgated and will come into force on June 5, 2022.

On November 2, 2021, the "Opinions of the Central Committee of the Communist Party of China and the State Council on Deepening the Fight against Pollution" required: to strengthen the control of atmospheric surface sources and noise pollution

In December 2021, notice on the issuance of the "14th five-year plan for ecological environment monitoring" (environmental monitoring (2021] No. 117)

《"14th Five-Year Plan of Action for the Prevention and Control of Noise Pollution" (Huan Da Qi [2023] No.1)

Executive standards

Technical specification for automatic monitoring of acoustic environmental quality in HJ906-2017 functional areas

Technical requirements of HJ907-2017 environmental noise automatic monitoring system

Technical specification for HJ640-2012 environmental noise monitoring Routine monitoring of urban acoustic environment

Environmental Quality Standard for GB3096-2008 Acoustic Environment

Verification Regulation of JJG449-2014 Octave and Fractional Octave Filters

Verification Regulation of JJG 778-2019 Noise Statistical Analyzer

system composition

The H7000 environmental noise automatic monitor realizes the networking, automation and informatization of noise automatic monitoring. The on-site monitoring terminal interacts with the monitoring center through various communication methods, and the monitoring center carries out statistical analysis and processing of noise data through the noise system software. The system has the characteristics of unattended, all-weather continuous operation, quick installation and deployment, simple operation and maintenance, etc..

It is suitable for noise monitoring in urban functional areas, traffic noise monitoring and other application fields. It provides timely and accurate noise monitoring data for the construction of a quiet and harmonious environment in various cities, and provides an effective and reliable basis for sound environment evaluation and governance.

 

H7000Typeautomatic environmental noise monitor

H7000 environmental noise automatic monitor is mainly composed of noise automatic monitor host, outdoor sound transmission kit, meteorological monitoring unit and corresponding software and hardware of noise automatic monitoring platform (expandable LED outdoor display screen, sound source identification module, traffic flow detection module, video monitoring device, vibration detection module, solar power supply system, electromagnetic radiation module, etc.).

Key features:

With total value analysis function, integral measurement function (including custom integral time function) statistical analysis function (including hour statistical analysis function, day statistical analysis function), octave and 1/3 octave filter function, etc;

All external modules shall be connected by plug-in or rotary type. Convenient operation and maintenance, fast plug and pull;

Data acquisition and storage unit acquisition time can be set remotely, with data storage, upload and accept instructions function, data preprocessing function, automatic time correction function, automatic restart function after crash;

The equipment has the functions of uploading fault information and power-off information;

Support remote upgrade system, remote control, automatic calibration and other functions;

Equipment installation is random, easy to install in smart poles, traffic poles, street light poles, etc.;

With recording function, can support remote or local settings trigger recording conditions, and recording duration and other configurations;

Internal constant temperature and humidity,PTC heating, Peltier cooling;

SupportWifi connection mobile phone app, convenient for on-site maintenance

OptionalLED outdoor display, sound source identification module, traffic flow detection module, video monitoring device, vibration detection module, solar power supply system, electromagnetic radiation module, etc..

Project

Technical indicators

Accuracy standard

ComplianceRequirements for GB/T3241-2010 Class 1

Measurement range

Measurement lower limit: <30dB; upper measurement limit:>130dB

Resolution

0.1dB

Measuring frequency range

10Hz~20000Hz

frequency weighting

A right, C right, Z right

Time counting right

Quick.(F), slow (S) sampling time interval is not more than 1s

Measurement parameters

Time-weighted sound level(9 instantaneous values); maximum value of time-weighted sound level (9 types); minimum value of time-weighted sound level（9species): equivalent continuous sound level (A, C,Z): Frequency-weighted peak sound level (A, C, Z); Sound exposure level (A, C, Z)

statistical function

MeasurementLp, Leq, LAE, SD, LN (L5,L10,L50,L90,L95,N can be set manually) Lmax, Lmin,Ld, Ln, Ldn and standard deviation SD

octave

With real-time spectrum analysis functions such as octave or 1/3 octave,1/1 octave analysis range: 8HZ-16kHz, 1/3 octave analysis range: 6.3 Hz-20kHz

Device function

With total value analysis function, integral measurement function(including custom integration time function), statistical analysis function, octave and 1/3 octave filter function, etc.

Recording time

Storage time260d

satellite positioning

Support Beidou,GPS, etc.

Storage mode

NAND FLASH,SD卡等

Storage time

> 5 years (no sound)

Storage Content

instantaneous sound level data, equivalent sound level data, statistical sound level data, octave and1/3 octave filter analysis results, recording files, event information, external device data

Power supply mode

Support communicationAC200 ~ 220,50HZ; Built-in UPS uninterruptible power supply, after power failure can ensure the normal operation of the host, not less than 24h

Applicability Operating temperature

Minimum temperature< -30℃, maximum temperature≥50℃

Ambient relative humidity

0% ~ 100 (non-condensing)

Environmental pressure

65KPa-108Kpa

Data Communication

RS232,RS485 serial communication, RJ45 network port communication; 3G/4G GPRS communication

communication protocol

HJ212-2017 agreement, HJ660-2013 agreement

Dimensions, weight

250 x210x530mm, about 18Kg

Standard configuration

Host(Level I), outdoor sound transmission kit, meteorological monitoring module, automatic noise monitoring platform, battery, installation pole, satellite positioning

Power consumption

About56W

MeteorologyReferenceNumber

Wind speed(Ultrasonic)

Measurement range:(0~75) m/s         Accuracy: 3m/s

Wind Direction(Ultrasonic)

Measurement range: 0~360 ° (no dead angle)    Accuracy:±3°

Temperature

Measurement range:(-50~85)℃Accuracy: 0.2℃

Humidity

Measurement range:(0~100) %RH        Accuracy:±2%RH

Atmospheric pressure

Measurement range:( 500 ~ 1100) HPA     Accuracy:±1hPa

Rainfall

Measurement range:(0~200) mm/h       Accuracy:5%(mm/h)

Optional Configuration

sound source identification system

Automatically identify typical sound sources in the natural environment, such as rain, wind, thunder, birds, insects, frogs, etc.600 kinds of noise source target classification.

Test data accuracy> 97.5%。

Traffic flow

Using digital high-definition dual radar wave detection technology, it is not affected by temperature changes.

At the same time, partially blocked vehicles can be detected across obstacles such as anti-glare panels, trees and metal guardrails of the central isolation belt.

Detectable Bidirectional22 lanes.

Can add modules

LED outdoor display, camera system, vibration detection module, electromagnetic radiation module, solar power supply system, traffic flow detection module.

 

 

noise monitoring platform

noise visualization platform

The visualization system is divided into two parts: project and equipment.

The project part mainly displays the introduction, online rate, excellent rate and number of points of the project. Click the point name to quickly locate in the map.

The equipment part mainly displays real-time data, spectrum analysis, real-time data line chart and abnormal noise query and playback. At the same time, you can view the geographic coordinates of the equipment. Click the spectrum analysis module to view real-time spectrum data..

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