As an important device in the field of environmental monitoring, the noise monitor can quantify the noise intensity in real-time, analyze the spectral characteristics, and provide a scientific basis for noise control. It uses high-precision sensors and intelligent algorithms to accurately capture acoustic wave signals in the range of 20Hz to 12.5kHz, with the measurement error controlled within ±0.5dB. It meets the technical requirements of Class 1 sound level meters in the GB/T 3785.1 standard, ensuring data accuracy and industry compliance.

 

Core Functions and Technical Advantages

1. Multi-dimensional Data Analysis

The device supports 1/1 octave and 1/3 octave spectrum analysis, which can identify the types of noise sources (such as traffic whistles, industrial machinery, or human activities). It also realizes sound source localization through voiceprint comparison technology, helping managers quickly locate the pollution sources.

2. Intelligent Early Warning System

When the noise exceeds the preset threshold, the device automatically triggers the recording function and sends an alarm to the management platform. At the same time, it reports data in real-time through 4G wireless network or RJ45 wired transmission. Its time-weighted mode can distinguish between instantaneous noise and continuous noise. For example, in sensitive areas such as examination rooms and hospitals, the system can effectively identify sudden noise and initiate emergency responses.

3. All-weather Monitoring Capability

It is equipped with a built-in large-capacity lithium battery and a solar dual-power supply system, combined with an outdoor waterproof chassis with an IP65 protection rating, enabling continuous operation in an environment ranging from -20°C to 60°C. The 7-inch LCD touch screen displays the noise curve, equivalent sound level Leq, and maximum peak Lmax in real-time, and supports historical data retrieval and export.

 

Application Scenarios and Value Manifestation

- Urban Public Space Management

In areas such as parks and waterfront promenades, the device can divide quiet rest areas and activity areas, and formulate differentiated management strategies through time-periodic monitoring. For example, it can identify the intensity of specific sound sources such as morning exercise music and children's frolic, providing data support for adjusting activity time and spatial layout.

- Traffic Noise Control

Installed on main roads or construction sections, the device can analyze the correlation between traffic flow and noise, and assist in planning the installation of sound barriers or speed-limiting schemes. Its mobile alarm function can also detect abnormal displacement of the device to prevent man-made damage.

- Industrial and Community Noise Management

In factory boundaries or residential areas, the effect of noise reduction measures can be evaluated by comparing the data from fixed monitoring points. For example, during the college entrance examination, the multi-parameter monitoring terminal can track noise interference from construction, traffic, etc. around the examination rooms in real-time, ensuring that the noise continuously meets the requirement of being lower than 55dB.

 

Data Management and Decision Support

The monitoring data is visually analyzed through the cloud platform, generating noise thermograms and trend reports. Managers can optimize the layout of monitoring points or evaluate the need for updating the noise map based on the monthly statistical results. In addition, the system supports docking with the smart city platform to promote collaborative governance among multiple departments such as environmental protection and urban construction.