Background of using online noise monitoring system for industrial enterprises
In the current era of continuous expansion of industrial production, noise pollution caused by mechanical operation and equipment roar has become an urgent problem for industrial enterprises to solve. High intensity noise not only seriously endangers the hearing health of workshop workers, leading to occupational diseases such as tinnitus and hearing loss, but also interferes with the daily lives of surrounding residents, triggers a large number of environmental complaints, and affects the image of enterprises and community harmony. At the same time, the national environmental protection policies continue to tighten, and regulations such as the "Industrial Enterprise Boundary Environmental Noise Emission Standards" clearly regulate the emission limits of industrial noise. The environmental protection department continues to strengthen its supervision of enterprise noise pollution.
The traditional artificial noise monitoring method has limitations such as low monitoring frequency, large data errors, and inability to provide real-time warnings, making it difficult to meet the dynamic and refined regulatory needs. In this context, the industrial enterprise noise online monitoring system relies on advanced sensors, the Internet of Things, and big data analysis technology to continuously monitor the noise in the production process of enterprises 24 hours a day, collect real-time data on noise intensity, frequency, etc. When the noise exceeds the standard, it automatically triggers an alarm mechanism to help enterprises timely grasp the noise emission status, accurately control noise pollution, and provide scientific, accurate, and continuous regulatory data for environmental protection departments, promoting industrial enterprises to implement environmental protection responsibilities and achieve green and sustainable development.
Scheme description
In modern industrial production, noise pollution has become an environmental issue that cannot be ignored. In order to effectively control and reduce the impact of industrial noise on the environment and human health, it is particularly important to develop an efficient online monitoring system for industrial enterprise noise. The system can monitor the noise level generated by industrial enterprises in real-time, comply with national or local environmental protection standards, and provide data analysis and alarm functions to assist enterprises in taking corresponding noise reduction measures.
system composition
The industrial enterprise noise automatic monitoring system consists of one or more noise monitoring sub stations, a noise automatic monitoring management platform, and meteorological parameter collection equipment, which can perform real-time automatic monitoring and data statistical analysis of industrial enterprise noise.
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. The outdoor sensor used in our company´s environmental noise online monitoring system has obtained the Chinese Type Approval Certificate (CPA) for measuring instruments. This outdoor sensor can ensure wind, rain, dust, and bird stop prevention while still ensuring that the frequency response of the microphone meets the frequency response requirements for level 2 sensors in GB/T3785-2010.
Noise collection and analysis unit
The noise acquisition and analysis unit has signal acquisition and data analysis functions, while ensuring data storage. The noise acquisition and analysis unit of the online monitoring system for environmental noise is not simply equipped with an internal sound level meter for signal acquisition, but uses an industrial grade industrial computer to develop 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 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.
4G wireless communication module
Adopting LTE3GPPRel.11 technology, supporting a maximum downlink speed of 150Mbps and a maximum 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. Ensure 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.
sound recording
Recording, video capture, sound source localization, voiceprint recognition (optional)
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