6 results about "Urban noise" patented technology

This invention belongs to the field of urban noise management technology and provides a remote square dance sound noise control system, comprising: one or more speakers, each with an embedded volume control module, the speakers being distributed across one or more monitoring areas; a remote control terminal, which determines the noise threshold of the monitoring area and sends the noise threshold to the embedded volume control modules of the speakers within the monitoring area; after receiving the noise threshold, the embedded volume control modules within the monitoring area detect the noise volume inside the speakers, and when the noise volume inside the speakers is greater than or equal to the noise threshold, it shuts off the power supply circuit of the speaker motherboard of the speaker containing the embedded volume control module; this invention enables noise location and control to be specific to the speakers, achieving precise noise control and fairness. Simultaneously, the remote control terminal can set different noise thresholds for different monitoring areas, meeting the needs of regionally differentiated noise control.

The utility model relates to the technical field of noise detection equipment, and discloses urban noise source positioning equipment which comprises a mobile vehicle body, a sound source positioning mechanism is arranged at the top end of the mobile vehicle body, the mobile vehicle body comprises a vehicle seat, universal wheels are fixedly installed at the four corners of the bottom end of the vehicle seat respectively, and a U-shaped frame is fixedly connected to one side of the middle of the top end of the vehicle seat. A through hole is formed in the middle of the top end of the U-shaped frame. By adopting the design of the movable sound source positioning structure, the sound source positioning device comprises the sound source positioning mechanism, the sound source positioning mechanism comprises the microphone array mechanism which can rotate and can be adjusted in a lifting manner, and when the sound source positioning device is far away from a noise source or the noise intensity is weak, the microphone array mechanism can be rotated and adjusted, the direction of the noise source can be detected, and the vehicle body can be moved; and making the position close to the noise source until the position of the urban noise source is determined.

The application provides a kind of noise monitoring system of urban noise pollution based on intelligent sensing, it is related to data processing technical field.In the present application, first, first noise audio and second noise audio are subjected to semantic mining respectively, to form first noise semantic vector and second noise semantic vector;Second, noise type semantic vector is mined;Then, noise type semantic vector and first noise semantic vector are subjected to noise type correlation analysis, and noise type correlation data is output;Further, noise type correlation data is used as the basis for semantic enhancement, and second noise semantic vector is subjected to semantic enhancement to form enhanced noise semantic vector;Finally, noise type prediction is carried out according to enhanced noise semantic vector, to form target noise type.Based on the above method, the problem of relatively low reliability of noise monitoring in the prior art can be improved.

A city noise monitoring device capable of being attached to an existing vertical rod is characterized in that the two sides of the existing vertical rod are tightly attached to a left arc part and a right arc part of an upper hoop respectively, the existing vertical rod is anchored between the left arc part and the right arc part through bolts, the outer sides of the left arc and the right arc extend out of a cantilever plate beam, and the tail end of the cantilever plate beam is hinged to the upper end of an inclined strut; the lower end of the inclined strut is hinged to the left and right arc parts of the lower hoop, and the existing vertical rod is anchored between the left and right arcs through bolts; and a noise monitor is fixed on the cantilever plate beam. According to the noise monitoring device, the triangular bracket can be fixedly mounted on the existing vertical rod in an attached manner, the current situation that the noise monitoring device needs to be provided with a bracket for mounting is changed, and the noise monitoring device has the advantages of wide application range, convenience in mounting and dismounting, repeated use, high expansibility and the like.

The application provides an urban noise analysis method and device based on edge AI, equipment and a medium. The method comprises the following steps: sending target noise data collected by a sound collecting device to an edge AI device; inputting the target noise data into a pre-trained scene adaptation model by the edge AI device; determining a scene analysis result of the target noise data by the scene adaptation model, wherein the scene analysis result comprises audio features and scene features corresponding to the audio features; sending the scene analysis result to an intelligent analysis device by the edge AI device; determining a target prevention strategy based on the scene analysis result and a preset knowledge graph by the intelligent analysis device, wherein the target prevention strategy is a prevention strategy for the target noise data, and the knowledge graph comprises historical cases, and the historical cases record scene analysis results of historical noise data and corresponding historical prevention strategies. According to the technical scheme of the embodiment of the application, the analysis result of the target noise data can be output in real time.

This utility model discloses an environmentally friendly soundproof barrier to alleviate urban noise pollution, including a soundproof barrier with a light-transmitting component inside. The light-transmitting component includes a rotating frame with a transparent plate inside. One side of the rotating frame is rotatably installed inside the soundproof barrier. When the rotating frame needs to be rotated, two limiting blocks are pulled from the outside, i.e., the connecting rope and the locking block are pulled, causing the locking block to disassemble in the locking slot. When the inside of the transparent plate needs to be cleaned, the rotating frame is rotated outwards, moving the inner part of the transparent plate to the outside of the road for cleaning without obstructing the lane. When the rotating frame is rotated 90° outwards, the top of the bolt aligns with the limiting port. By rotating the bolt and inserting it into the limiting port, the rotating frame is fixed, facilitating cleaning of the transparent plate.