Case Study: Advanced 3D Digital Platform Empowers Smart Policing Transformation

Background

The HC?County Public Security Ministry?initiated a pioneering smart policing project aimed at establishing a comprehensive digital surveillance and command system. The project encompassed an area exceeding 50 square kilometers, with a stringent requirement of achieving 3-centimeter average resolution in the final 3D model. This initiative was designed to integrate multiple data sources, including video surveillance, skyeye systems, and digital terminals, into a unified police operations platform. The project framework was developed based on successful implementations, particularly referencing the experience of local?Public Security Ministry.

Challenges

The implementation team faced several significant technical and operational challenges: The primary challenge lay in the urban environment's complexity. The survey area was characterized by numerous high-rise buildings, creating substantial signal interference zones. The varying building heights and complex terrain features presented significant obstacles for consistent data collection. Additionally, changing lighting conditions throughout the day posed challenges for maintaining uniform image quality.

These environmental factors were further complicated by the technical requirements. The project demanded high-precision data collection while adhering to strict urban flight regulations, including a maximum flight altitude of 272 meters. The team needed to maintain data quality while ensuring efficient coverage of the extensive survey area within a limited timeframe.

Solution

The project team implemented a comprehensive technical and operational solution. At the core of the technical solution was the deployment of advanced equipment: a DJI Matrice M300 RTK drone platform integrated with a SHARE 203S PRO camera system. This system featured a 225-million-pixel full-frame sensor and proprietary SML professional surveying lens, enabling high-resolution image capture while maintaining operational efficiency.

The operational strategy involved dividing the survey area into 30 distinct blocks, each with optimized flight paths and multiple strategic takeoff points. This segmentation allowed for systematic coverage while managing technical constraints. The team utilized the camera system's real-time offset algorithm and adjustable parameters to adapt to varying environmental conditions, ensuring consistent data quality throughout the collection process.

Implementation Strategy:

1. Applied systematic 30-block division methodology aligned with local urban planning zones.

2. Utilized multi-point takeoff strategy optimized for local architectural characteristics.

3. Implemented flexible scheduling to accommodate local weather patterns and urban activity cycles.

4. Developed custom parameter adjustment protocols for varying environmental conditions.

Results

The implementation yielded significant achievements in both technical execution and practical applications. The field data collection was completed in three days, accumulating 6.5 terabytes of high-resolution aerial imagery. The subsequent processing phase, completed in ten days using specialized CC software, successfully generated the required high-precision 3D model.

The practical impact of this implementation has been substantial. The resulting system has enhanced the official?department's operational capabilities in several key areas:

· Real-time tracking and surveillance capabilities

· Integration with facial recognition systems

· Comprehensive urban monitoring and early warning functions

· Enhanced decision-making support for command operations

Value Creation

· Enhanced public security response capabilities in densely populated urban areas

· Improved coordination efficiency between different police departments

· Strengthened community safety through preventive monitoring

· Created scalable model for regional public security modernization

This successful implementation has positioned HC?County Public Security Ministry?at the forefront of smart policing technology, establishing a model for digital transformation in law enforcement operations. The project serves as a valuable reference for other municipalities pursuing similar digital transformation initiatives, particularly in rapidly developing urban areas.