Policy background
During the 14th Five-Year Plan period, the Chinese government put forward a series of measures and plans for the management and control of road traffic noise. As one of the main sources of urban environmental noise, road traffic noise has a direct impact on the living quality of residents. Therefore, the government especially emphasizes the scientific management and comprehensive control of road traffic noise when formulating relevant policies.
Strengthen the requirements of urban road planning and construction, by optimizing the road network layout, reduce traffic congestion, so as to reduce the generation of road traffic noise. At the same time, promote the use of low-noise pavement materials, and the setting of sound barriers in sensitive areas, to reduce the impact of noise on the surrounding environment.
We will standardize the prevention and control of noise pollution in urban rail transit. The selection of urban rail transit vehicles and other equipment and the construction of rail lines and subgrade structure shall meet the relevant requirements. The operating units shall strengthen the maintenance of urban rail transit lines and vehicles, carry out noise monitoring and fault diagnosis according to the regulations, keep the original monitoring records, and maintain the normal operation of vibration and noise reduction facilities.
Refine the railway noise pollution prevention and control requirements. Clarify the departments responsible for noise pollution prevention and control of railway supervision and administration agencies, refine the measures to control railway noise pollution, establish a working contact mechanism with railway transport enterprises and relevant departments, and strengthen industry supervision. Railway transport enterprises, together with relevant local departments, promote the comprehensive control of railway train whistle noise pollution, promote the upgrading of urban railway crossings; strengthen the maintenance of railway lines and railway locomotives, ensure the normal operation of vibration and noise reduction facilities, carry out noise monitoring in accordance with state regulations, and keep the original monitoring records. Encourage the installation of closed protective fences on both sides of the railway passing through the central city
Strengthen the supervision of the noise emission of motor vehicles, strictly implement the noise emission standards of motor vehicles, and punish the vehicles that exceed the standards, so as to control the noise pollution.
The noise management in key areas has been strengthened, such as schools, hospitals, residential areas and other sensitive areas, and more stringent noise control measures have been implemented. At the same time, strengthen the monitoring and evaluation of traffic noise, and establish a sound prevention and control system of road traffic noise pollution.
Advocate public participation and social co-governance, improve the public´s awareness of the harm of road traffic noise through publicity and education, encourage the public to take effective measures to reduce the generation and dissemination of noise, and jointly create a quiet and harmonious living environment.
he importance of road traffic noise prevention and control
With the continuous growth of urban economy, the improvement of people´s living standards, the rapid development of urban traffic, the substantial increase of motor vehicles, the problem of urban traffic noise pollution is becoming more and more prominent. The flow of road traffic noise sound sources, high sound level, long interference time and wide influence range, have seriously disturbed the normal life and rest of urban and rural residents. Especially in recent years, urban construction has developed rapidly. The newly built and expanded streets and roads have turned the original remote and quiet areas into noisy downtown areas, thus aggravating the impact of road traffic noise on the surrounding environment.
product presentation
The road traffic noise monitoring system is a technical device specially designed to assess and record the noise levels generated by road traffic. The system consists of sound level meters, data acquisition equipment, and analysis software that work together to monitor and record noise levels in a specific area in real time. Noise detection sensors are precisely positioned at key points near the road in order to capture noise level pollution from road traffic at different points.
It uses advanced acoustic sensors and data analysis technology, and the road traffic noise monitoring system can provide accurate noise level measurement results, and can identify the trends and patterns of noise pollution. These data are crucial for urban planners, environmental scientists, and traffic engineers, who can help them assess the impact of existing road networks on the surrounding environment and develop effective noise control strategies.
Product characteristics
l The system has powerful functions, the system can expand the temperature and humidity, meteorological elements, sound source positioning, horn capture, traffic flow, traffic flow, video monitoring.
l High precision measurement, the system is equipped with high sensitivity acoustic sensors, which can accurately capture sound waves in different frequency ranges, ensuring the accuracy of noise data.
l It can provide real-time noise level data to help relevant departments to timely understand the actual situation of road traffic noise, so as to make rapid response.
l The system can not only record the noise data, but also analyze the data, identify the noise peak, and evaluate the trend and pattern of noise pollution.
l Easy to operate with a user-friendly interface for non-professionals to operate and maintain.
l Support 4G full netcom, RJ 45 wired network, RS485 and other transmission modes, can transmit data to the remote monitoring center, facilitate remote monitoring and management.
l The environment is adaptable and designed with various environmental conditions to ensure that the system operates stably in severe weather or extreme temperatures.
l Multi-directional monitoring, the system can install multiple sensors at different points, and the noise can be monitored from different locations at the same time to obtain a more comprehensive noise distribution map.
l Designed for long-term continuous operation, monitoring traffic noise 24 hours a day without interruption.
l The design and application of the system meet the relevant noise monitoring standards to ensure the legitimacy and comparability of the data.
l As technology evolves and demand change, the system can be upgraded and expanded as needed to accommodate new monitoring requirements.
Featured function
l Thermostatic heating device
In order to adapt to the ultra-low temperature climate environment in north China, the equipment is equipped with a constant temperature heating device, and a constant temperature heating device is set on the equipment. When the ambient temperature is lower than the temperature set by the device, the heating is automatically started to maintain the constant temperature, so as to avoid the low temperature of the equipment affecting the operation of the equipment.
l Disconnect the network
In order to prevent the equipment from being disconnected and resulting to the loss of monitoring data, our company has developed the breakpoint transmission function. When the equipment monitors the network interruption, the monitoring data will be automatically saved to the local area. After the device is detected, the detected data during the disconnection period will be automatically uploaded to the server for storage.
l Overstandard alarm
The device can set the alarm threshold and support remote setting. When the noise data exceeds the value, the device will automatically alarm and upload it to the supervision platform to remind the supervisor through the PC terminal platform or the mobile wechat terminal. If the device is equipped with an alarm, it can automatically linkage the alarm for sound and light alarm
l Overstandard recording
Equipped with a recording board, support the data exceeds the standard trigger recording function and remote playback function, can view the scene screen and sound synchronous playback.
l Remote calibration
It has the function of remote automatic calibration. Open the electrostatic actuator by remotely sending the ACT command. The electrostatic motivator produces the sound pressure level of 94dB by default, and remotely calibrates the microphone to ensure the data accuracy.
Listing configuration
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class
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order number
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name
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technical parameter
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main engine
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1
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Data collector
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1. Data storage: the original monitoring data can be stored for one year;
2. Data transmission: supports real-time and scheduled data upload, and can be set remotely;
3. Interface: with RS485 / RS232 / RJ 45 network port, SD card interface;
4, data communication: support Ethernet, optical fiber, GPRS and other communication;
5, data download: automatic download data to the remote computer, support manual download data, and can download data through USB, data transmission data does not affect the measurement;
6, with their own routine fault automatic diagnosis, automatic alarm, and display, save the corresponding record function;
Automatic data collection and control software support all kinds of environmental index parameter collection function, provide real-time data to LED display function;
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Front end sensor
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2
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First level sound level meter
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Level 1, A, C, Z, F, S, I, measurement range: 30dB (A) ~130 dB (A), output interface: RS232, function: outdoor measurement (with integral, statistics and 24h measurement function), 1 / 1 frequency range and 1 / 3 frequency range, with 8G card, with outdoor self-calibration device.(One of the two types of core sensors optional)
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Secondary sound level meter
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Level 2, A, C, Z, F, S, I, measurement range: 30dB (A) ~130 dB (A), output interface: RS232, function: outdoor measurement (with integral, statistics and 24h measurement function), 1 / 1 times frequency range and 1 / 3 times frequency range, with 8G card.(One of the two types of core sensors optional)
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3
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Meteorological module
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Wind speed: 0 ~ 60 m/s, accuracy: ± 0.3 m/s
Wind direction: 0~360°, accuracy: 0.1°
Temperature: -50~100℃ Accuracy: ± 0.2℃
Humidity: 0 ~ 100% RH Accuracy: ± 5% RH
Air pressure: 500 ~ 1100 hPa Accuracy: ± 0.3 hPa
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4
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vehicle flowrate
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Traffic monitoring
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Communication module
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5
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Wireless module
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Support mobile / telecom / Unicom 2 / 3 / 4G full netcom
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6
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GP R S
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orientation module
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rack-mounting set
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7
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Vertical pole bracket
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The total height is 4 meters;
The rod body material meets the requirements of firm, durable and beautiful, and the rod body meets the requirements of lightning protection and grounding;
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8
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protective housing
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For the installation of the collector and 220V power supply system, including the box, to meet the standard requirements of anticorrosion, sun protection, rain protection and other related protective box;
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Intelligent cloud
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9
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Monitoring cloud platform
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Multi-station query: this function is mainly used for multiple devices for data comparison query;
History query: history query is mainly used to query the data curve of a day or hour and report download;
Curve analysis: curve analysis is used to analyze the changes of the elements within a time period, which can be dragged on the curve;
Site Management: This feature is used to add or change sites
Electronic map: Online status, fault status
Real-time data: real-time data query, hourly average value, daily average data statistics, maximum and minimum value statistics
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Automatic noise monitoring and management platform
The automatic noise monitoring and management platform shall have the functions of operation status monitoring, data collection, data storage, review, query, statistics and report generation. The specific functional requirements of each part shall comply with the relevant provisions of the HJ 907 noise monitoring system.
