Most of the current environmental monitoring instruments are pollution source monitoring, that is, where there is pollution, it will be monitored. Large-scale operations on construction sites can cause fugitive dust, which is the main source of urban fugitive dust pollution. Installing fugitive dust monitoring equipment on the construction site can effectively improve the fugitive dust environment. When the fugitive dust caused by operations reaches a certain concentration, certain dust reduction measures should be taken to reduce fugitive dust pollution.

1. Perception layer: pollution source online monitoring instrument, including particulate matter concentration monitor, meteorological five-parameter monitor, noise monitor and video surveillance camera, continuous and automatic online monitoring of particulate matter concentration, meteorological parameters, noise and live video; OSEN-YZ The particulate matter monitor can realize the real-time monitoring of the dust, and the data can be reported wirelessly.

2. Transmission layer: use wired, wireless, 3G/4G and other methods to transmit various monitoring data;

3. Platform layer: Data service cloud platform, relying on the data of the dust and noise monitoring platform of the construction site, conducts system analysis, provides cross-regional, full-time, multi-level data mining and comparison, and provides data support for scientific smog management;

4. Application layer: Client systems for different environmental protection bureaus and construction sites to realize real-time Web-based online monitoring of pollution source data, on-site image and video monitoring, pollution source exceeding alarms, and various management and statistical analysis for different management levels .

There are web-based real-time online monitoring of pollution source data, on-site image and video monitoring (including real-time control of front-end PTZ and cameras), pollution source exceeding standard alarm, and various management and statistical analysis for different management levels.

The system is designed based on the demand for monitoring and management of dust pollution in urban construction sites. The technical characteristics and advantages are mainly reflected in the following three points:

(1) Monitoring terminal system The system integrates multiple environmental parameters such as TSP, PM10, PM2.5, temperature, humidity, wind direction and wind speed, atmospheric pressure, rainfall, etc., and continuously monitors online 24 hours a day, and provides air quality data on the construction site around the clock. The monitoring equipment can be automatically started when the alarm value is exceeded, with the characteristics of multi-parameter, real-time, and intelligent;

(2) Transmit and transmit data through the three major networks of sensor networks, wireless networks, and the Internet, and update real-time monitoring data quickly and conveniently;

(3) The cloud computing-based data center platform gathers monitoring data in different regions and at different periods, and has a large amount of storage space. It can carry out multi-dimensional and multi-temporal data statistical analysis, which is convenient for the management part to carry out work in an orderly manner, and is also for the establishment of The construction site environmental pollution control standards accumulate data to promote long-term management of air pollution.

(4) The whole system adopts free modular combination, according to the need of unorganized pollution monitoring, different monitoring items can be flexibly added or reduced. At the same time, the free modular combination can be used at any time if the core sensor fails and does not need to be repaired. The sensor is replaced without affecting the normal operation of the whole equipment, which solves the problem of time-consuming and cost-consuming returning the whole machine to the factory when the traditional equipment fails

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