2results about How to "Improve the traffic environment" patented technology

The invention discloses a parking space state prediction and parking guidance system based on multi-source information fusion, and relates to the technical field of parking guidance, the core of the parking space state prediction and parking guidance system comprises four modules: a multi-dimensional data acquisition and preprocessing module for acquiring and associating three-dimensional data of a user, a parking lot and a road network by deploying a multi-modal terminal and an edge node; the parking demand and resource collaborative evaluation module is used for predicting a parking space vacancy rate by using a model according to the three-dimensional data and judging whether a guiding scheme needs to be adjusted or not by combining a threshold value; the demand-oriented guide parameter optimization module is used for dividing travel scenes based on the core state data of the vehicle owner aiming at a scene needing to be adjusted, calculating an optimal parking path curve and generating a parking space recommendation and path instruction; and the guiding effect closed-loop and compensation module is used for pushing an instruction, monitoring parking duration and evaluating whether a compensation scheme is started or not. According to the system, through multi-source information fusion and dynamic optimization, the parking efficiency and the user experience are improved, and static traffic intelligence is assisted.

This utility model provides a hollow, one-time injection-molded composite fencing, relating to the field of fencing technology. It includes a fencing body and two sound-absorbing components, both fixedly installed on the exterior of the fencing body, for quickly absorbing noise generated during construction. In this utility model, when noise contacts the surface sound-absorbing panel, some sound waves are directly absorbed and reflected, achieving initial attenuation. The remaining sound waves enter the cavity through the sound inlet holes and undergo multiple reflections under the action of a specially designed corrugated plate, significantly extending the propagation path and converting most of the sound energy into heat energy. Finally, the residual sound waves are completely absorbed by the sound-absorbing cotton and the inner wall sound-absorbing panel, achieving noise reduction across the entire frequency band. The structure adopts a multi-layer composite noise reduction design, achieving efficient sound energy absorption through a stepped noise reduction mechanism. This not only effectively reduces noise pollution and harms residents' health but also significantly improves the traffic environment and reduces the risk of accidents caused by noise interference for drivers.