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LHNM300
1. Standards-Compliant Precision Monitoring Capabilities
The LHNM300 strictly adheres to China's Technical Specifications for Automatic Monitoring of Ambient Noise in Functional Zones(HJ906-2017), equipped with a Type 1 precision microphone supporting A/C/Z frequency weighting and F/S time weighting. Measurement uncertainty is <0.5 dB. Its automatic calibration system performs zero-point calibration every 24 hours, combined with temperature compensation algorithms, ensuring stability within ±0.8 dB even in extreme environments from -30°C to 50°C, meeting national requirements for networked monitoring data comparison.
2. Intelligent Sound Source Identification and Event Tracing
An optional 12-microphone array sound source localization radar employs an improved Inception-CNN deep learning algorithm to automatically classify and identify 11 types of sound sources (e.g., wind, rain, horns, construction noise), with a localization accuracy of ±3°. The system automatically triggers recording for events (storage ≥60 days) and synchronizes with PTZ cameras to capture video evidence, providing a complete data chain for noise pollution enforcement.
3. Multi-Parameter Integration and Industrial-Grade Reliability
Featuring a modular design, it seamlessly integrates auxiliary units such as ultrasonic weather stations (wind speed/direction, temperature/humidity) and traffic flow counting cameras. The microphone is equipped with a specialized windscreen (wind noise reduction ≥30 dB) and dustproof net. The main chassis incorporates lightning protection design (10 kV surge protection), ensuring continuous stable operation in harsh conditions like sandstorms and heavy rain, with a mean time between failures (MTBF) ≥8,000 hours.
4. Cloud Platform and Mobile Terminal Collaborative Management
The LIHE Noise Supervision Platform enables centralized management of multiple stations, supporting in-depth analysis functions such as noise pollution calendars, compliance rate analysis, and population impact assessment. A mobile app provides real-time data viewing, remote parameter configuration, and maintenance work order processing. Integrated with GIS map visualization, it allows managers to grasp the dynamics of the regional sound environment anytime, anywhere.
1. Standards-Compliant Precision Monitoring Capabilities
The LHNM300 strictly adheres to China's Technical Specifications for Automatic Monitoring of Ambient Noise in Functional Zones(HJ906-2017), equipped with a Type 1 precision microphone supporting A/C/Z frequency weighting and F/S time weighting. Measurement uncertainty is <0.5 dB. Its automatic calibration system performs zero-point calibration every 24 hours, combined with temperature compensation algorithms, ensuring stability within ±0.8 dB even in extreme environments from -30°C to 50°C, meeting national requirements for networked monitoring data comparison.
2. Intelligent Sound Source Identification and Event Tracing
An optional 12-microphone array sound source localization radar employs an improved Inception-CNN deep learning algorithm to automatically classify and identify 11 types of sound sources (e.g., wind, rain, horns, construction noise), with a localization accuracy of ±3°. The system automatically triggers recording for events (storage ≥60 days) and synchronizes with PTZ cameras to capture video evidence, providing a complete data chain for noise pollution enforcement.
3. Multi-Parameter Integration and Industrial-Grade Reliability
Featuring a modular design, it seamlessly integrates auxiliary units such as ultrasonic weather stations (wind speed/direction, temperature/humidity) and traffic flow counting cameras. The microphone is equipped with a specialized windscreen (wind noise reduction ≥30 dB) and dustproof net. The main chassis incorporates lightning protection design (10 kV surge protection), ensuring continuous stable operation in harsh conditions like sandstorms and heavy rain, with a mean time between failures (MTBF) ≥8,000 hours.
4. Cloud Platform and Mobile Terminal Collaborative Management
The LIHE Noise Supervision Platform enables centralized management of multiple stations, supporting in-depth analysis functions such as noise pollution calendars, compliance rate analysis, and population impact assessment. A mobile app provides real-time data viewing, remote parameter configuration, and maintenance work order processing. Integrated with GIS map visualization, it allows managers to grasp the dynamics of the regional sound environment anytime, anywhere.
