Environmental noise detection equipment

　　Environmental noise monitoring equipmentPurpose of the solution

A device for indoor environmental noise monitoring and display, using full dot matrix LED light-emitting module surface full dot matrix display function, suitable for displaying indoor and outdoor environmental noise in other public places such as factories, workshops, parks, residential areas, etc.

Function of noise monitoring system scheme

The display content includes instantaneous noise value A, average Leq value, time, and flowing text. The noise value can be set arbitrarily, and an alarm (or color change) prompt will be given if it exceeds the set value.

Noise monitoring scheme with LED display screen

LED on-site display screen: mainly composed of LED display screen, controller, and communication module. Real time display of local noise data, while receiving information from the monitoring center, and remote real-time release of information, etc

1. Type: P10 dual color single-sided;

2. Size: 103 * 55cm, P10 dual color single-sided

3. Appearance: Painted white carbon steel, bottom height designed according to relevant standards, 3m high column pole

4. Display content: Real time display of on-site instantaneous noise with 4 digits (accurate to one decimal place). Set the alarm upper limit according to the noise setting in the functional area and change the color. At the same time, display environmental protection slogans, as well as text content such as time, date, temperature, and humidity

　　Environmental noise monitoring equipmentScheme function

1. The noise acquisition front-end ZHHB-Z series noise sensor complies with GB/T3785-1/2 type and IEC 61672-1/2 level standards. The sensor is equipped with a high-speed (48k/s) data acquisition module and DSP processor, which can collect a large amount of raw sound data for real-time analysis, obtaining the required instantaneous sound pressure level, maximum value, average value and other data for monitoring.

2. Transmission method: Simply use the built-in RS485 interface of the sensor and add a data transmission module to achieve wireless transmission to the display screen.

3. Composition: Composed of all-weather noise microphone, data transmission module, noise control module, and outdoor LED noise display screen.

4. System implementation functions:

1) Capable of remotely setting monitoring points Lp (instantaneous noise), Lmax (large noise), Leq (average noise);

2) The sound collection front-end is equipped with remote transmission.

Design of Noise Environment Monitoring System Scheme

Adopting GPRS wireless noise monitoring transmission scheme; It is suitable for long-distance noise wireless real-time monitoring and consists of a noise sensor, GPRS transmission module, and noise display screen,

1. Front end acquisition part: composed of noise microphone, data acquisition host system (including protection, power supply, collector, etc.) GPRS wireless transmission module.

2. Backend receiving part: composed of GPRS receiving module, collection system, and noise monitoring cloud platform;

3. Display section: Noise display screen; LED display screen displays content interface reference.

Noise monitoring system scheme and technical parameters

1. Installation method: wall mounted or column clamp type.

2. Frequency range: 10Hz to 20kHz

3. Measurement range: 25dB~135dB

4. Operating temperature: -20 ℃~+70 ℃

5. Power supply: 220V AC mains power

6. Display content: (can add flowing subtitles, time display, temperature and humidity display)

A: Instantaneous A-level, Leq value (1-hour average), and maximum value (display digits and color selectable)

B: Mobile text promotional slogan (optional)

7. Screen body: LED display screen can be customized according to actual requirements. Reference selection: PH10 full dot matrix LED dual color, full-color)

Advantages of noise monitoring system solution

Our company currently provides various types of noise measurement equipment and indoor and outdoor LED high-definition screens, noise automatic monitoring stations, noise alarm stations, and products covering environmental, transportation, industrial, social life, construction, workshop, factory, noise source equipment, motor vehicles, machinery and equipment noise monitoring or surveillance. Independently build a noise monitoring cloud platform and mobile app to facilitate users in obtaining noise data and providing a good user experience