The online monitoring system for environmental noise in quiet residential quarters uses a two-level sound level meter to monitor community noise 24 hours a day. At the same time, in order to reflect the openness of data, the device is equipped with an LED display screen, which can display the specific values monitored by the noise monitoring equipment in real time. The data is directly transmitted from the monitoring equipment to the screen without any processing, and the data is officially accurate. At the same time, the device is equipped with an alarm light, which can alert when the monitored data exceeds the standard, and also remind on-site personnel to pay attention to controlling the volume. At the same time, the device is equipped with a network transmission module, and the data is uploaded to our cloud platform in real time. When the data exceeds the standard, the platform has an alarm reminder, and the mobile WeChat official account also has With alarm push, Supervisors can view the on-site data on the platform or on the mobile end´s WeChat official account and process them in a timely manner.
The online monitoring system for environmental noise in quiet residential areas is interconnected with on-site instruments and meters through Internet of Things technology, completing real-time collection of environmental noise data, statistical analysis of collected data, and calculation of noise values. It is a simple outdoor noise automatic monitoring system, consisting of a data display screen, noise sensors, data collection and statistical analysis software, GPRS wireless transmission module, server cloud platform software, WeChat client, and other parts. The noise meter has a large measurement range, strong functionality, good stability, and can be used with related accessories to achieve remote video monitoring, remote broadcasting, and other functions. Suitable for automatic monitoring of environmental noise in cities, parks, and residential areas, online monitoring of noise pollution sources, and automatic collection and transmission of noise data. It has the characteristics of 24-hour monitoring and no need for manual duty. It adopts digital detection technology, which has the advantages of high reliability, good stability, wide dynamic range, and no need for range conversion. There are multiple options for product styles and appearances, fully considering different application scenarios for installation and use.
All-weather outdoor microphone
Outdoor microphones are designed to withstand wind, rain, dust, and interference for long-term continuous outdoor use. The wind cover of outdoor microphones can interfere with the accuracy of noise testing. Our company´s environmental noise online monitoring system core components have obtained the China Metrology Instrument Type Approval Certificate (CPA). This outdoor sensor can withstand wind, rain, dust, and bird strikes while still meeting the frequency response requirements for Level 2 sensors in GB/T3785-2010. It can also be equipped with an electrostatic exciter to achieve remote automatic calibration.
Noise collection and analysis unit
The noise acquisition and analysis unit has signal acquisition and data analysis functions, and can also store data. The noise acquisition and analysis unit of the online monitoring system for environmental noise is not simply a sound level meter placed inside for signal acquisition, but uses a data acquisition system and develops signal acquisition software suitable for automatic noise monitoring systems.
Communication unit
Implement data communication from the noise station to the noise monitoring system software server. The online monitoring system for environmental noise adopts 4G wireless communication, which can meet the basic data transmission requirements of the system and ensure stable transmission.
Power control unit
To provide power supply, prevent the impact of external power supply jitter on measurement accuracy, and protect the noise monitoring station from external surge attacks.
GPS positioning module
The GPS positioning module configured by our company is a high-performance BDS/GNSS full constellation positioning and navigation module, which uses a low-power GNSS SOC chip with completely independent intellectual property rights - AT6558, and supports multiple satellite navigation systems. ATGM332D-5N is a six in one multi-mode satellite navigation module that includes 32 tracking channels that can simultaneously receive GNSS signals from six satellite navigation systems, and achieve joint positioning, navigation, and timing. It has advantages such as high flexibility and low power consumption, and can locate the device´s position in real-time.
4G wireless communication module
Adopting LTE3GPPRel.11 technology, supporting downlink speed of 150Mbps and uplink speed of 50Mbps; At the same time, it is compatible with the Mobile Remote Communication UMTS/HPSA+UC20 module and the Mobile Remote Communication Multi Network Standard LTECat3 module in terms of packaging, achieving seamless switching between 3G and 4G networks. Stable and fast upload of device data.
Chassis
The environmental noise in the online monitoring system adopts an all-weather protective box, made of anti-corrosion and anti rust materials, in compliance with IP55 standards, used to place noise collection and analysis units, data acquisition boards, power control units, etc., playing a role in wind, rain, and theft prevention.
Pole accessories
The frame and bracket are made of anti-corrosion and rust proof all metal materials, which can facilitate sound calibration and maintenance. They have reliable lightning protection and grounding designs, and the effective design life of the material and structure is not less than 10 years.
Ball camera and microphone
Real time monitoring of the on-site environment can be achieved, and if the data exceeds the standard, on-site environment recording and noise pickup can be realized. Through the platform playback function, the actual situation on site can be viewed.
Sound column
This configuration can achieve remote calling function. Management personnel can view the situation on site through remote cameras. If serious noise pollution behavior is found, remote calling can be carried out through the APP. After hearing the instructions, on-site personnel can make corrections. At the same time, they can communicate with the back-end management personnel through the on-site equipment microphone.
LED display screen
Real time display of noise data monitored by the device. If it is a dual color LED display screen, it can achieve color changing display of data exceeding the standard font, which is intuitive and eye-catching.
Alarm lamp
Flashing reminder when data exceeds the standard
Main monitoring items
The equivalent sound levels for each hour are Leqh, cumulative sound levels L10.L50, L90, value Lmax, minimum value Lmin, and standard deviation SD. The daytime equivalent sound level is Ld, the nighttime equivalent sound level is Ln, and the nighttime sound level is Lmax. Hourly collection rate and effective collection rate during daytime and nighttime.
Optional meteorological monitoring unit can be configured to record meteorological parameters (such as wind speed, wind direction, temperature, humidity, air pressure, etc.) and weather conditions (such as rain, snow, electricity, etc.) during the monitoring period. And calculate the average wind speed and precipitation per minute, as well as the average wind speed and precipitation per hour.
Product Features
1. High integration and flexible solution (optional): The system can expand and integrate elements such as temperature and humidity, meteorological parameters, pedestrian flow, and vehicle flow; Equipped with a wind cover, it can be used to reduce the impact of wind noise when measuring in windy environments; Fully functional, capable of achieving color change due to data exceeding the standard (optional), sound and light alarm, and other functions;
2. The collection, transmission, and display of datasets are integrated. By integrating high and flexible solutions, modular deployment, and meeting the needs of different occasions; Tool free disassembly, convenient for point migration and equipment maintenance; Multimedia display: Optional monochrome, dual color, tri color, full-color, customizable display interface, additional display time and date information;
3. The appearance of the display screen can be selected from double columns, antique tiles, curved screens, etc., with multiple options suitable for various places; Excessive discoloration (optional): The LED screen display has an alarm display function for excessive discoloration; It can be equipped with a built-in GPS positioning module (optional) according to needs, using a positioning system, real-time tracking equipment, built-in real-time clock, and has Beidou automatic timing function;
4.24-hour automatic monitoring, no need for manual intervention; Noise exceeding alarm can be triggered by setting alarm conditions; Combining the WEB interface to view real-time data, statistical curves, and other information anytime, anywhere, and manage noise pollution.
Featured features:
Interrupted network and continued transmission
In order to prevent the occurrence of network disconnection in equipment, which may lead to the loss of monitoring data, our company has developed a network disconnection continuation function. When the equipment detects a network interruption, it automatically saves the monitoring data to the local area. After the equipment is detected and the network is restored, the data monitored during the disconnection period is automatically uploaded to the server for storage.
Over limit alarm
The device can set an alarm threshold and support remote setting. When the noise data exceeds this value, the device will automatically sound an alarm and upload it to the supervision platform. The supervision personnel will be alerted through the PC platform or mobile WeChat platform. If the device is equipped with an alarm, it can automatically link the alarm for sound and light alarm.
Remote stop call
Equipped with remote call function, when the monitoring data exceeds the threshold alarm, regulatory personnel can view the on-site situation from the monitoring video to see if any measures have been taken. If there is no improvement despite exceeding the standard, regulatory personnel can remotely call a stop on the APP and order the site to stop noise pollution behavior.
Noise Environment Supervision Cloud Platform
The noise environment supervision cloud platform monitors environmental noise data in real-time through on-site devices, and controls, analyzes, and applies the monitoring data in software systems. Diversified display of data details, intelligent analysis and comparison, and generation of analysis reports; Combined with big data analysis models, covering from point to surface and grid based, pollution tracing and trend prediction can be achieved. At the same time, it has a data supervision screen that intuitively presents the dynamic changes of data, fully meeting the monitoring needs of regulatory units.
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