As my country's requirements for environmental governance are getting higher and higher, PM2.5 has become an important indicator of environmental monitoring, and the dust in the air, as an important part of the impact of PM2.5 indicators, has also become the object of monitoring by environmental protection departments at all levels. In this regard, Xiamen Computer Technology has launched a dust monitoring system solution. The dust monitoring system realizes real-time online monitoring of the environment. It uses wireless sensor technology and laser dust testing equipment to achieve online monitoring of dust. It can also monitor PM2.5, PM10, noise, and environment. Temperature, environmental humidity, wind speed and direction and other indexes, the test data of each test point is directly uploaded to the monitoring background through wireless communication, which is convenient for the environmental department to monitor the data in real time.
2. System composition
The main system of dust monitoring should include: dust monitoring points, communication equipment, environmental analysis system, etc.
The architecture diagram is as follows :
Application areas :
Public places such as construction sites, urban management, squares, and large-scale working enterprises are important basis for environmental protection, construction, urban management, transportation, municipal and other related departments to control and evaluate the source of air pollution suspended particulate emissions.
Ø Solution advantages
◎ The system deployment is simple and fast, the construction period is short, the equipment ports are easy to connect, the configuration is simple and easy to understand, the network architecture is mature, stable and reliable, and the existing server resources can be used to deploy the cloud management platform environment.
◎Users are convenient and fast to use: terminal equipment, network equipment, cloud management platform are easy to deploy, visual parameter configuration page, users can directly view the industrial scene through PC and APP.
Ø Communication equipment
In view of the working environment of the dust monitoring point, the monitoring point analysis and the communication interface requirements of sensors, detectors and other equipment, the wireless data transmission terminal (DTU) is used for data communication. The TD210 series of DTU also has two 4-20mA simulations. The quantity input interface, three DIO, one RS485, and one RS232 interface can meet this requirement.
TD210 DTU product functions are as follows :
1 Support transparent data transmission, embedded standard TCP/IP protocol stack
2 Support TCP/UDP connection multi-center (up to 5) and TCP server function, the access method can be based on domain name and IP address to access the center
3 Support TCP heartbeat link detection, automatically reconnect when disconnected, and keep the device always online
4 Support APN/VPDN
5 Support SMS backup function, when TCP/UDP is disconnected, you can use SMS to send data to the center
6 Support SMS, phone ringing, serial port data, multiple online and offline trigger modes, support equipment running software and hardware self-checking technology, and self-repair of running faults
7 Support remote upgrade and local upgrade equipment program
8 Support remote setting and local setting of device parameters
Ø Environmental analysis system
The environmental analysis system includes various servers and system software, which are mainly responsible for the analysis and management of the original data, and display and process the system analysis results.
3. System features
1. Using flexible and stable data communication methods (network, mobile phone), it can receive the monitoring data and historical data reported by the data acquisition instrument in a stable and timely manner;
2. The system has complete information query, statistical reports and data analysis functions;
3. Able to automatically report various alarm information, such as over-standard alarm, online status, etc.;
4. It has an intuitive and visual operation interface, using GIS geographic information system to intuitively reflect different types of environmental protection information on the computer operation interface;
5. The platform's anti-control function on the device;
6. With comprehensive information management functions, including basic enterprise information management, discharge port information management, monitoring equipment information management, etc.;
4. Project significance
The construction site dust pollution online monitoring system" realizes the integration of online monitoring and management of construction site dust pollution, and improves the efficiency and ability of scientific management. This system is useful for grasping the true status of construction site dust pollution and the effect of dust control measures. Authoritative.
In the green construction site creation and civilized construction evaluation, the system can use quantitative data to reflect the level of dust pollution control on the construction site. It is an important part of the "clean air plan" in various regions, and is also expected to become an effective starting point for the construction of smart environmental protection. Contribute to atmospheric environmental governance.