49results about How to "Improve traffic order" patented technology

A method for determining the trajectory of traffic flow at an intersection, which relates to the field of traffic conflict of mixed traffic flow in traffic engineering. The image coordinates of a traffic individual are obtained through the view software, and the actual coordinates of a traffic individual at any time can be obtained through the conversion formula of image coordinates and actual coordinates. There are 8 unknown matrix conversion coefficients in the conversion formula, and the matrix conversion coefficients can be obtained by marking 4 points with known image coordinates and actual coordinates at the intersection, and bringing the image coordinates and actual coordinates of the marked points into the conversion formula. On the basis of determining the 8 conversion coefficients, the actual coordinates of a certain traffic individual at all times to be obtained are obtained, and the coordinate system is drawn to be the driving trajectory of the traffic individual. The invention has important significance for the quantification of traffic conflicts at intersections, the prediction of black spots of traffic accidents and the improvement of traffic safety.

The invention discloses an airport demisting system and a demisting method. The system comprises a plurality of outdoor demisting electric heating blanket bodies, a steel chisel, a strapping tape andan electric heating power source system. The airport demisting system has the advantages that the local visibility near the outdoor large-area terrain can be improved under the mist condition, and larger benefits are achieved when the system is applied to busy or large airports. During use, only transporting, loading and unloading are needed, demounting and mounting are convenient, the system canbe stored to be used many times, special maintenance is not needed, and operation is easy and convenient. The power is adjustable, demisting is carried out by changing the local air temperature condition of the low altitude, and then the visibility of the local area of the low altitude is improved. Environmental pollution is avoided, and the system can be used for a short time according to the mist condition and needs. Safe flight can be guaranteed by improving the visibility, social benefits, economic benefits and the technology and management level can be improved, service quality can be improved, and the comprehensive traffic order and the social reputation of civil aviation are improved. Then the hourly rate of the airports, runways and airplanes are increased, the effects of increasing revenue and reducing expenditure are achieved, the flight delay rate caused by the mist can be reduced, and the annual flight on-time performance statistical level is greatly improved.