The environmental factory boundary noise automatic monitoring system consists of a noise monitoring terminal (LBT-C22), acquisition equipment, communication equipment, display equipment, and monitoring platform. The on-site monitoring terminal can be extended to include meteorological and dust concentration terminals. The on-site monitoring terminal interacts with the monitoring center through various communication methods to exchange data. The monitoring center uses noise system software (V1.0 version) to perform statistical analysis and processing on the noise data. The (extendable to spectrum monitoring) system has the characteristics of unmanned operation, 24/7 continuous operation, fast installation and deployment, and simple operation and maintenance. It is a noise automatic monitoring system specifically designed for long-term outdoor use, providing timely and accurate noise monitoring data for the construction of a quiet and harmonious environment in various cities, and providing effective and reliable basis for sound environment evaluation and governance.

LBT-Z1 product form
Fixed noise automatic monitoring substation
Vehicle mounted noise automatic monitoring substation
Mobile noise automatic monitoring substation
Portable noise automatic monitoring substation

Composition of LBT-Z1 system

This system consists of monitoring sub stations, communication networks, and monitoring centers.
Monitoring substation: including noise automatic monitoring terminal, meteorological automatic monitoring terminal, dust automatic monitoring terminal, and LED display screen.
Communication network: Communication methods such as wired/fiber optic/GPRS/WIFI/3G/self built network can be selected.
Monitoring Center: To provide a specialized network processing platform for the management, statistics, analysis, and reporting of noise, meteorological, and dust data.

Characteristics of LBT-Z1 system
The system adopts advanced environmental monitoring technology, automatic control, and network information transmission technology to achieve networked, automated, and information-based automatic noise monitoring. The system has the following characteristics:
Support control and management of mobile and PC devices
Support remote parameter settings, program updates, sensor calibration, substation timing, substation reset, etc
If there is a short-term communication failure, the substation can automatically supplement the missing data with the monitoring center
The substation can provide three power supply modes simultaneously (AC 220V, battery power, solar cell power, etc.)
Support dust concentration PM2.5、 Collection, transmission, storage, and display of meteorological and other data
L supports LED display and LCD display
Support data information from GPS satellite receivers to support mobile monitoring services
L can be expanded into a noise spectrum monitoring system


LBT-Z1 system parameters
Complies with the standard IEC 61672:2002 Level 2, GB/T3785-2010 2
Outdoor microphone LBT-C22 type 1/2 inch high-precision capacitive free field microphone
Type of microphone head: Fully directional pre polarized capacitive metal film
Frequency response: 16~20kHz
Temperature range: -20 ℃~70 ℃
Humidity range: 0~100% (non condensing)
Frequency weighting: A, C, Z
Measurement range: 20~135dBA
Measurement indicators: equivalent sound pressure level second data LAeq, LCeq, LZeq; Equivalent sound pressure level minute data LAeq, LCeq, LZeq;
A/D sampling frequency: 48kHz
Debugging interface: Micro USB data output standard RS232/custom version+485 adapter
Power supply voltage: Equipment power supply: DC 5-18V (recommended voltage 9-12V) 485
Port power supply: DC 6-16V (recommended voltage 9-12V)
Rated power: 1.2W
Display resolution: 128 × 64