1. Vehicle‑Mounted Mobile Evidence Collection System
The vehicle‑mounted mobile evidence collection system integrates a vehicle‑mounted PTZ unit and a wireless video monitoring terminal onto police or military vehicles. During emergencies, the system captures on‑site video and transmits it in real time to the command center, enabling efficient remote command and dispatch.
The system can be categorized into three types based on application scenarios:
| System Type | Primary Application | Applicable Industries |
|---|
| Communication Command Vehicle | Real‑time video transmission | Public Security, Armed Police, Military Vehicles, Fire Services |
| Traffic Law‑Enforcement Evidence Vehicle | Law‑enforcement evidence collection with video transmission | Traffic Police |
| Patrol Vehicle | Full recording of duty activities with network transmission | 110 Patrol Vehicles, Urban Management |
Communication command vehicles and patrol vehicles require high real‑time performance for video transmission.
Traffic law‑enforcement evidence vehicles, in addition to video streaming, require specialized functions such as radar speed measurement, license plate recognition, license plate comparison, and on‑site ticket printing.
2. Individual Mobile Evidence Collection System
The individual mobile evidence collection system—also known as a portable DVR—consists primarily of a miniature camera and an encoding unit. Its key advantages include compact size, light weight, low power consumption, and easy portability. Depending on the application scenario, the camera and encoder configurations vary. Common scenarios include:
| Application Scenario | Description | Required Configuration | Applicable Industries |
|---|
| Instant Command | Used when the command center continuously issues operational instructions to frontline personnel | Encoder with wireless transmission, two‑way audio intercom, GPS | Military, Armed Police, Fire Services, Emergency Command |
| On‑Site Monitoring | Command center monitors real‑time video and stores recordings for later verification | Encoder with wireless transmission, audio collection, GPS, recording | Traffic Police, Patrol Officers, Mobile Repair Teams |
| On‑Site Recording | Focused on documenting work processes for later review; real‑time transmission not essential | Audio/video capture and storage | Urban Management and other law‑enforcement departments |
The individual mobile evidence collection system transforms each device carrier into a mobile surveillance unit, eliminating the need for extensive fixed cameras and transmission infrastructure. When combined with the vehicle‑mounted evidence collection system, it significantly expands the coverage of mobile surveillance and enables flexible, rapid response to various emergencies.
