Environmental Noise Monitor AHAI2001-1
Digital signal processing technology, wide dynamic range, high accuracy
Easy to install, no need for civil engineering, external power supply, etc
Multiple power supply methods, with built-in lithium battery
Multi scenario application
Low cost, capable of large-scale deployment
Perfectly compatible with the original noise automatic monitoring software platform
Environmental Noise Monitor AHAI2001-1Main functional indicators
To achieve functions such as noise data acquisition, processing, and wireless transmission, its performance indicators are as follows:
※ Compliant with standards:
GB/T 3785.1-2010 Class 1/IEC 61672-1:2013 Class 1
GB/T 3241-2010 Class 1/IEC 61260-1:2014 Class 1
※ Measurement range:
25 dB～141 dB（A）
Frequency range: 10 Hz~20 kHz
Frequency weighting: A, C, Z
Time weighting: F, S, I, peak
Measurement indicators:
Lp, Leq, t, Leq, T, Lmax, Lmin, LN, SEL, E, Lpeak, SD, etc.
OCT spectrum analysis function
※ - Filter type: Parallel (real-time) octave band, with a base of 10, G=103/10；
——Filter center frequencies: 16 Hz, 31.5 Hz, 63 Hz, 125 Hz, 250 Hz, 500 Hz, 1 kHz, 2 kHz, 4 kHz
8 kHz、16 kHz；
——Time weighting: F (fast weighting), S (slow weighting);
——Real time analysis: simultaneously complete all center frequencies and A, C, Z weighting;
——Main measurement indicators: instantaneous frequency band sound pressure level (Lp), high frequency band sound pressure level (Max), low frequency band sound pressure level (Min), and equivalent continuous frequency band sound pressure level (Leq, T).
※ Wireless upload of weighted sound pressure level and frequency band sound pressure level data, with an upload interval of<2s
Data storage: 4MB, multiple 1024 sets of measurement results and sound pressure level time history
Power supply: Multiple power supply methods, including 5V USB adapter power supply, internal rechargeable lithium battery power supply (with a range of more than 24 hours), and external solar panel power supply.
Output interface: RS232
Protection level: IP55
Working temperature range: -15 ℃~60 ℃
Appearance dimensions: Height 367 mm, Large diameter 67 mm
typical configuration
Main Function Remarks for Configuration
Basic all-weather outdoor protection, statistical analysis, data storage, RS232 output interface, with installation bracket for measuring results to be read out through RS232 interface.
Spectrum analysis statistical analysis, OCT analysis, data storage, RS232 output interface, real-time spectrum analysis with installation bracket
Basic IoT statistical analysis, data storage, RS232 output interface, 4G DTU, Bluetooth, with installation bracket for real-time uploading of measurement results to cloud servers
Spectrum analysis, IoT statistical analysis, OCT analysis, data storage, RS232 output interface, 4G DTU, Bluetooth, with installation bracket
Application Plan One
Large scale standalone networking can be widely applied to environmental noise monitoring in urban functional areas, industrial zone boundary noise monitoring, airport noise monitoring, emergency monitoring, etc.
Application Plan 2
Noise monitoring in public places, such as monitoring dance noise in squares, acoustic testing at concerts, outdoor display screens, temporary noise monitoring during college entrance exams, etc
Application Plan Three
It can be widely applied to the construction of big data for environmental protection in smart cities and the drawing of noise maps.