Urban public space sound scene and illumination intelligent cooperation device and method
Through the synergy of acquisition equipment and controllers, natural sound sources are selected and Fourier transform is performed to generate playback parameters. Combined with lighting control, the asynchronous problem between soundscape and light environment is solved, and the comfort of urban public spaces and the sensory experience of drivers are improved.
Patent Information
- Application Number
- CN202511011565.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-22
- Publication Date
- 2025-09-30
AI Technical Summary
The soundscape and light environment design of existing urban public spaces have not been effectively integrated, resulting in asynchronous phenomena, affecting the comfort of pedestrians and drivers, and failing to effectively reduce noise interference.
Environmental parameters are collected using acquisition equipment, and natural sound sources are selected through the controller and fast Fourier transform is performed to generate playback parameters. The lighting equipment is controlled in combination with the environmental parameters to achieve coordinated adjustment of sound and light.
It achieves synchronous adjustment of sound and light, improves the subjective comfort of pedestrians and drivers, reduces traffic noise interference, and improves the sensory experience of urban public spaces.
Smart Images
Figure CN120730592A_ABST
Abstract
Description
Technical Field
[0001] The present invention belongs to the field of intelligent city environmental regulation, and has important applications in sub-fields such as sound and light coordinated regulation and intelligent perception. Background Art
[0002] Current urban public spaces face challenges. High-density development has led to a loss of subjective comfort, causing increased psychological stress and attention fatigue among residents. Research has shown that natural soundscapes (such as birdsong and the sound of flowing water) significantly regulate human stress hormone levels and attention recovery. However, in practice, while playing natural sounds through speakers to create soundscapes can enhance subjective comfort, in most cases the sound sources lack interaction with the surrounding environment, resulting in an asynchrony between the soundscape and the light environment. Furthermore, existing soundscape design schemes fail to effectively consider the comfort of pedestrians or drivers, and further improvement is needed to achieve a more harmonious environmental adjustment. Summary of the Invention
[0003] The purpose of the present invention is to provide an intelligent collaborative device and method for soundscape and lighting in urban public spaces, which solves the problem of how to associate sound and light and make them more integrated with the surrounding environment, thereby improving the comfort of the sound and light environment in urban public spaces, reducing noise interference, and improving the sensory experience of pedestrians, drivers, etc. by dynamically adjusting the soundscape and light effects, thereby promoting the construction of an urban environment with better subjective comfort.
[0004] In order to achieve the above object, the technical solution adopted by the present invention is: The present invention provides an intelligent collaborative device for soundscape and lighting in urban public spaces, comprising: a collection device configured to collect environmental parameters; a database storing natural sound sources for sound masking; a loudspeaker configured to play natural sounds; a lighting device for lighting; and a controller configured to select natural sound sources from the database according to the environmental parameters and generate playback parameters, perform fast Fourier transform on the natural sound sources, convert time domain signals into frequency domain signals, extract the energy intensity of each frequency band, and generate control parameters for the lighting device in combination with the environmental parameters.
[0005] A method for intelligent coordination of soundscape and lighting in urban public spaces is also provided, including: S1, receiving environmental parameters; S2, selecting natural sound sources and generating playback parameters based on the environmental parameters; S3, performing fast Fourier transform on the natural sound sources, converting time domain signals into frequency domain signals, extracting the energy intensity of each frequency band, and generating lighting control parameters in combination with the environmental parameters; S4, playing natural sounds based on the playback parameters and performing lighting based on the lighting control parameters.
[0006] Due to the application of the above-mentioned technical solution, the present invention has the following advantages compared with the prior art: the device selects natural sound sources according to environmental parameters and generates corresponding playback parameters, so that the natural sounds played by the speakers are more integrated with the surrounding environment, thereby supplementing the natural sound sources inside the venue. At the same time, the device generates control parameters for lighting equipment according to natural sound sources and environmental parameters to achieve intelligent coordinated adjustment of sound and light. In this way, the synchronous adjustment of sound and light not only effectively improves the subjective comfort of vehicle drivers, but also creates a more pleasant environment for pedestrians. The effect of intelligent coordination of sound and light can provide a higher subjective comfort improvement in different spaces, whether it is to reduce the interference of traffic noise on drivers or to improve the sensory experience of pedestrians on city streets, thereby comprehensively improving the comfort of pedestrians and drivers in urban public spaces. BRIEF DESCRIPTION OF THE DRAWINGS
[0007] Hereinafter, some specific embodiments of the present invention will be described in detail in an exemplary and non-limiting manner with reference to the accompanying drawings. The same reference numerals in the accompanying drawings indicate the same or similar components or parts. It should be understood by those skilled in the art that these drawings are not necessarily drawn to scale. In the accompanying drawings: Figure 1 This is a schematic structural diagram of a preferred embodiment of the intelligent collaborative device for soundscape and lighting in urban public spaces according to the present invention; Figure 2 This is a step diagram of a preferred embodiment of the method for intelligently coordinating soundscape and lighting in urban public spaces according to the present invention; Figure 3 This is a partial exterior view of the intelligent collaborative device for soundscape and lighting in urban public spaces of the present invention; Figure 4 This is the technical roadmap of the intelligent collaborative device for soundscape and lighting in urban public spaces of the present invention; Figure 5 It is a signal transmission diagram of the intelligent collaborative device for soundscape and lighting in urban public spaces of the present invention; The description of the accompanying drawings is as follows: 1. Data acquisition equipment; 2. Database; 3. Speaker; 4. Lighting equipment; 41. Main lighting unit; 42. Auxiliary lighting unit; 5. Controller; 6. Prompt screen. DETAILED DESCRIPTION
[0008] The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.
[0009] like Figure 1 、 Figure 3As shown in FIG, the urban public space soundscape and lighting intelligent coordination device includes a collection device 1, a database 2, a speaker 3, a lighting device 4, a controller 5 and a prompt screen 6. It is arranged on the side of the urban road.
[0010] Figure 2 It shows the intelligent coordination method between soundscape and lighting in urban public spaces, including: S1. Receive environmental parameters; S2. Select a natural sound source based on environmental parameters and generate playback parameters; S3. Perform fast Fourier transform on the natural sound source, convert the time domain signal into a frequency domain signal, extract the energy intensity of each frequency band, and generate lighting control parameters based on environmental parameters; S4. Play the natural sound according to the playback parameters and perform lighting according to the lighting control parameters.
[0011] There is no strict order of precedence in the above order.
[0012] The data collection device 1 may include a facial recognition module, a binocular camera, and an environmental sensor including at least one of a humidity sensor, a light intensity sensor, and a sound pressure level sensor. These components may be installed on both sides of a city road, such as by installing poles on both sides of the road.
[0013] The acquisition device 1 can collect and identify target conditions and natural conditions. Among them, the target conditions are mainly identified by the face recognition module to identify pedestrians on the road and by the binocular camera to identify vehicles on the road. Of course, it is also possible to simultaneously identify people and vehicles using only the binocular camera.
[0014] Controller 5 receives signals from acquisition device 1, such as the captured street scene, temperature, humidity, and light intensity. Using the DeepSOCIAL algorithm, the captured street scene outputs and encodes pedestrian coordinates and tracking IDs. The DBSCAN clustering algorithm is also used to divide clusters using a 2-meter threshold. Each cluster is assigned a unique ID, distinguishing individual, group, and vehicle information and their corresponding spatial locations. Pedestrian and vehicle coordinates and tracking IDs output from DeepSOCIAL are input into the driver algorithm's decision engine.
[0015] Controller 5 is programmed with a large server model, including DeepSOCIAL algorithm software, DBSCAN clustering algorithm software, and a decision engine, via an input device. Controller 5 can be deployed both locally and online, or solely locally. Typically, the large server model in controller 5 is located in a nearby computer room, while the sound and light control components are located along the road. Communication between the large server model and the sound and light control components is achieved via wireless or wired communication.
[0016] The controller 5 is also connected to the database 2, which stores a plurality of natural sound sources, such as birdsong, insects chirping, wind, leaves blowing in the wind, rain, water flow, brake sounds, etc. These natural sound sources are called by the controller 5.
[0017] After the controller 5 calls the natural sound source, it modulates it according to the environmental parameters of the acquisition device. This is explained in conjunction with Table 1.
[0018] Table 1 Scenario condition Sound performance Lighting performance Visualization When pedestrians pass by Daytime, sunny Birdsong, gentle wind blowing through leaves, weak insects chirping, weak water flowing The main lighting unit is dim and the light is stable Displays the effect of light and dark green colors changing with the fluctuation of sound pressure level (main lighting unit) When pedestrians pass by Daytime, rainy days Weak bird sounds, weak insect chirps, and the sound of flowing water Main lighting unit lighting enhancement Display of the blue-green color changing with sound pressure level fluctuations (main lighting unit) When pedestrians pass by evening Weak bird sounds, insect sounds, weak wind sounds, weak water sounds Main lighting unit lighting enhancement Display of the orange-green contrasting color scheme changing with sound pressure level fluctuations (main lighting unit) When pedestrians pass by night Weak bird sounds, insect chirping, weak wind sounds, and flowing water sounds Main lighting unit lighting enhancement Display of the orange-green contrasting color scheme changing with sound pressure level fluctuations (main lighting unit) When a vehicle passes by Full-time Strong water flow sound (or rain sound) plays along with the vehicle When the vehicle passes by, the auxiliary lighting unit is turned on and the closer the vehicle is, the brighter it is. Displays the effect of light-dark blue color changing with the fluctuation of sound pressure level (auxiliary lighting unit) The signals collected by the acquisition device 1 are calculated by the large model in the controller 5 to identify whether there are pedestrians or vehicles. The acquisition device 1 also collects natural conditions such as humidity and light intensity to determine whether it is rainy or sunny, daytime or nighttime. The noise sound pressure level is collected to judge the overall loudness of the current soundscape. Based on this information, the decision engine in the controller 5 selects the corresponding natural sound source and generates playback parameters. The playback parameters are mainly sound pressure level, which is decoded by the audio decoder and played by the 40W full-range speaker to form natural sound (see Figure 5 ). If there are vehicles, the strong sound of water flow creates a sound masking effect, suppressing traffic noise and reducing subjective loudness. If there are pedestrians, a natural soundscape is selected and a signal is sent to the speaker to play natural sounds (birdsong / rain, etc.). Furthermore, the decision engine can also allocate group sound sources when there are multiple pedestrians (see Figure 4 ), that is, selecting multiple natural sound sources. Furthermore, when there are multiple groups, a reverberation effect can be triggered. The speaker's spectral characteristics can also be adjusted based on the target number. If both pedestrians and vehicles are detected simultaneously, a braking sound source can be selected to remind the driver to brake to avoid the pedestrian.
[0019] The decision engine can also adjust the sound pressure level of natural sounds based on the position of pedestrians and vehicles. For example, as pedestrians and vehicles move away, the volume will gradually decrease. For example, as the vehicle approaches a roadside speaker, the sound level will increase and the auxiliary lighting unit integrated with the speaker will gradually increase in brightness, improving the driver experience.
[0020] The above is mainly the control part of the speaker.
[0021] In this example, the controller also performs a Fast Fourier Transform on the selected natural sound source, converting the time-domain signal into the frequency domain. It then extracts the energy intensity of each frequency band and uses the decision engine to map the frequency and sound amplitude (decibels) to the hue, saturation, or brightness of the lighting device. This mapping can be done to hue, saturation, or brightness alone, or simultaneously. The decision engine also combines natural environmental parameters such as humidity and light intensity to generate control parameters for the lighting device.
[0022] Combine Figure 3In this embodiment, a prompt screen 6 is provided, which can generate prompt information according to environmental parameters such as whether there are pedestrians, vehicles, and the positions of pedestrians and vehicles. The prompt screen is connected to the controller 5 and receives control signals.
[0023] For example, if there are pedestrians and vehicles at the same time, information such as "Watch out for vehicles", "Watch out for driving", and "Watch out for slippery roads in rainy days" will be displayed on the prompt screen 6. Prompts can also be given on the prompt screen 6 at a specific location based on the location of the vehicles and pedestrians (assuming multiple sets of this device are set up).
[0024] In addition, the prompt screen 6 in this example will also prompt the signal of natural sound, such as the category of natural sound, the specific sound of which bird or insect, etc.
[0025] The above embodiments are only for illustrating the technical concept and features of the present invention. Their purpose is to enable people familiar with this technology to understand the contents of the present invention and implement them accordingly. They are not intended to limit the scope of protection of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be included in the scope of protection of the present invention.
Claims
1. An intelligent collaborative device for soundscape and lighting in urban public spaces, characterized by: include: A collection device (1) configured to collect environmental parameters; Database (2), which stores natural sound sources for masking; a speaker (3) configured to play natural sounds; lighting equipment (4), for lighting; The controller (5) is configured to select a natural sound source from the database (2) according to the environmental parameters and generate playback parameters, perform fast Fourier transform on the natural sound source, convert the time domain signal into a frequency domain signal, extract the energy intensity of each frequency band, and generate control parameters for the lighting device (4) in combination with the environmental parameters.
2. The intelligent collaborative device for soundscape and lighting in urban public spaces according to claim 1, characterized in that: The environmental parameters include target identification conditions and natural conditions, wherein the target identification conditions include the number and position of pedestrians, the number and position of vehicles, and the natural conditions include one or a combination of two or more of humidity, light intensity, and noise sound pressure level.
3. The intelligent collaborative device for soundscape and lighting in urban public spaces according to claim 2, characterized in that: The acquisition device (1) comprises a face recognition module, a binocular camera, and an environmental sensor comprising at least one of a humidity sensor, a light intensity sensor, and a sound pressure level sensor.
4. The intelligent collaborative device for soundscape and lighting in urban public spaces according to claim 2, characterized in that: The controller (5) is configured to adjust the sound pressure level of the natural sound according to the position change of the target.
5. The intelligent collaborative device for soundscape and lighting in urban public spaces according to claim 2, characterized in that: The controller (5) is configured to adjust the spectral characteristics of the loudspeaker according to the number of targets.
6. The intelligent collaborative device for soundscape and lighting in urban public spaces according to claim 1, characterized in that: The lighting device (4) comprises a main lighting unit (41) and an auxiliary lighting unit (42), and the auxiliary lighting unit (42) is combined with the speaker (3).
7. The intelligent collaborative device for soundscape and lighting in urban public spaces according to claim 1, characterized in that: The control parameters of the lighting device (4) include hue, saturation and brightness.
8. The intelligent collaborative device for soundscape and lighting in urban public spaces according to claim 1, characterized in that: It also includes a prompt screen (6), which is configured to display prompt information including at least one of "pay attention to pedestrians", "pay attention to vehicles", "pay attention to slippery roads in rainy days", and natural sound information according to environmental parameters.
9. A method for intelligent coordination of soundscape and lighting in urban public spaces, characterized in that: include: S1, receiving environmental parameters; S2. Selecting a natural sound source for sound masking based on environmental parameters and generating playback parameters; S3. Perform fast Fourier transform on the natural sound source, convert the time domain signal into a frequency domain signal, extract the energy intensity of each frequency band, and generate lighting control parameters based on environmental parameters; S4. Play the natural sound according to the playback parameters and perform lighting according to the lighting control parameters.
10. The method for intelligent coordination of soundscape and lighting in urban public spaces according to claim 9, characterized in that: Including prompting the identified targets in the environment based on environmental parameters.