Entertainment has boundaries, noise has limits: Sanyuan Environment uses smart technology to protect public tranquility

September-30th-2025

In the early morning park, square dance groups dance to the rhythm of music, brimming with energy. Nearby, in residential areas, residents continue to enjoy the tranquility of the morning. This harmonious scene is the result of the widespread use of intelligent noise control technology.

With the rise of a nationwide fitness craze, noise from recreational activities in public places has become a key issue in urban management. How can we balance citizens' fitness and recreational needs with the public's right to quiet? Sanyuan Environmental offers an integrated solution combining "automatic noise monitoring + directional sound transmission," offering a solution that balances technology and humanity.

1. Real Dilemma: Public Noise Control Faces a Dilemma

Outdoor cultural and sports activities such as square dancing, choirs, and aerobics are an important part of people's cultural life, but the noise pollution caused by traditional audio equipment is becoming increasingly prominent:

Too loud: To overcome ambient noise, event organizers constantly turned up the volume, disrupting the lives of surrounding residents.

Temporal and spatial disorder : There is a lack of regulations on activity times and locations, and noise complaints are frequent;

Management difficulties : It is difficult to collect evidence through manual inspections, and there is a lack of scientific and effective supervision methods.

These contradictions not only affect community harmony, but also pose huge challenges to urban management.

2. Smart Monitoring: Equipping Noise Management with “Digital Ears”

The three-element environmental noise automatic monitoring system provides a precise and digital management tool for public noise control:

Real-time monitoring: High-precision sensors are used to monitor noise 24 hours a day, and data is uploaded to the cloud platform in real time;

Intelligent identification: Based on AI algorithms, it automatically identifies the type of noise source and distinguishes between square dance music, traffic noise, construction noise, etc.

Early warning and disposal: When the noise exceeds the standard, the system automatically sends an early warning message to the manager's mobile phone to guide on-site disposal;

Data tracing: Generate noise change curves to provide an objective basis for law enforcement management.

The system has been applied in many city parks and squares, realizing the transformation from "human defense" to "technical defense".

3. Directional sound transmission: let the sound "stay" in the designated area

The three-dimensional environmental directional sound system breaks through the technical limitations of traditional sound systems:

Directional propagation of sound waves: Ultrasonic carrier technology is used to achieve directional propagation of sound waves and effectively control the sound coverage range;

Precise regional control: Sound is transmitted only in a specific area directly in front of the device, and the sound pressure level on the sides and rear is greatly attenuated;

Multi-zone independent management: supports multiple teams to conduct activities at the same time, and different areas play different content without interfering with each other;

Intelligent volume control: Automatically adjusts the volume based on the ambient noise level to maintain optimal listening experience.

Actual measurements show that the sound pressure level can reach 75 decibels 20 meters in front of the speaker, while the sound pressure level drops to below 55 decibels 10 meters to the side, effectively reducing the impact on the surrounding environment.

4. Collaborative Application: Creating a Closed-Loop Management System of "Monitoring and Governance"

Sanyuan Environment organically combines the automatic noise monitoring system with the directional sound transmission system to form a complete noise control solution:

Intelligent perception: real-time understanding of noise conditions through monitoring system;

Accurate early warning: Automatically identify excessive noise and issue early warnings;

Directional control: guiding activity groups to use directional sound equipment;

Effect evaluation: monitor the noise reduction effect and form a closed management loop.

Through comprehensive measures, noise complaints on Chaoyin Waterfront decreased by 95% year-on-year, the satisfaction rate of follow-up visits reached 96%, the police dispatch rate decreased by 90% year-on-year, and the comprehensive law enforcement cost decreased by 80% . By achieving large-scale co-governance at a low cost, a set of replicable, popularizable and referenceable experiences and practices can be formed to promote comprehensive noise pollution control in other areas under the jurisdiction and continuously open a new chapter in noise pollution control work.

"Entertainment has boundaries, noise has limits." Sanyuan Environment is committed to finding the greatest common denominator of public needs through technological innovation and practical cases, making urban life more beautiful and harmonious.