Road dust accumulation load for aerial vehicles

　　With the acceleration of urban construction, various construction sites are spread throughout every corner of the city, and the environmental problems generated during the construction process are becoming increasingly serious. The Ministry of Environmental Protection has spent a lot of manpower and material resources on remediation, but the results have been minimal. Among them, the construction dust with multiple points, large quantities, and wide coverage, road scattering, wheel mud, and non paved road wind erosion and rain erosion are the most prominent problems, collectively referred to as road dust. Road dust refers to the accumulation of dust on roads and streets, which is repeatedly lifted and mixed under certain wind, vehicle crushing, or crowd activities, and enters the ambient air to form particles with a certain particle size distribution. It is one of the main sources of urban air particulate matter and has become a major public hazard in cities. To address such pollution issues, it is necessary to use scientific methods to finely manage urban roads, identify pollution sources around sensitive areas, and target key areas for targeted treatment, in order to improve the overall level of governance.

The traditional method of monitoring road dust accumulation load requires manual measurement. A vacuum cleaner is used to collect dust samples of a certain road surface area, which are then screened and analyzed in the laboratory to calculate the dust accumulation load of the sampled road surface. This method requires a lot of manpower and resources, and has low work efficiency. Additionally, it is affected by factors such as time, space, and weather, resulting in a small sampling area and poor representativeness. Based on the above shortcomings, traditional road dust load monitoring methods are gradually being abandoned, and a new and more convenient monitoring method, the road dust load on-board monitoring system, has emerged.

In February, Beijing issued the evaluation standards for vehicle mounted mobile monitoring of dust load on roads, which will be implemented from April 1st. Through the evaluation of the vehicle mounted mobile monitoring system, quality assurance and control, and data validity assessment, the classification and evaluation of road dust load vehicle mounted mobile monitoring are clearly defined. Taking this as an opportunity, many cities have followed suit and introduced a miracle vehicle - the road dust load vehicle. From the appearance, it is not much different from medium-sized cars, seemingly ordinary, but actually very useful. It is equipped with a vacuum tube, GPS antenna, and road dust load monitoring system, equivalent to a mobile small monitoring station. When the wheels pass over the road, they can know whether the road dust exceeds the standard, providing accurate data for the treatment of road dust and helping to protect the environmental air quality.

The road dust load navigation system of Tianjin Zhiyi Times Technology Development Co., Ltd. consists of three parts: vehicle monitoring terminal, backend data processing platform software, and frontend data display platform. During the navigation process, the road dust load monitoring system can measure the road dust accumulation through GPS positioning while walking, and display it in real-time on the front-end data display platform. Different road sections are presented in three colors: green, orange, and red according to the dust accumulation situation on the road. The green color represents excellent, the orange color represents critical value, and the same red color represents excessive dust accumulation on this road section, which needs to be treated. Whether there is dust pollution, where the source is, and what the concentration is, can be accurately answered through the road dust load monitoring system. Based on the navigation results, the pollution source can be quickly identified, and scientific and effective prevention and control measures can be formulated. Targeted efforts to increase road law enforcement have greatly improved the work efficiency of governance personnel, and the pollution prevention and control effect is more obvious. It is a good helper.