Distributed Video Processing for Vehicle Surveillance
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current vehicle-mounted video systems for law enforcement are bulky, expensive, difficult to operate, and limited in functionality, with centralized processing causing bottlenecks and electrical interference issues.
Innovation Solution
A vehicle-mounted video and audio recording system using distributed processing, where video and audio are encoded at their sources and connected via a high-speed Ethernet bus, allowing for multiple cameras and features like face recognition and wireless internet access, with components integrated into a rear view mirror for improved usability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single central processor unit is used to control video encoding and processing, then the system structure is simplified, but processing speed and system responsiveness deteriorate due to bottlenecks
Solution Approach 1:
The patent divides the centralized processing architecture into distributed processing nodes. Each camera system includes its own processor for encoding and processing video signals locally, while a central controller coordinates overall system functions. This segmentation eliminates the single-point bottleneck by allowing parallel processing across multiple independent nodes, thereby maintaining simplified individual unit structures while achieving high overall processing speed.
2Ease of manufacture
If video signals are transmitted as unencoded analog signals to the central CPU, then the system is easier to implement, but electrical interference and signal degradation increase
Solution Approach 1:
The patent implements encoding and signal processing at the source (camera level) before transmission to the central controller. Video signals are encoded into digital format locally at each camera system, and only processed digital signals are transmitted through the network. This preliminary action at the source prevents analog signal degradation and electrical interference during transmission, while the standardized digital interface maintains ease of system implementation and integration.
3Adaptability or versatility
If multiple cameras and features are added to the system, then functionality and versatility improve, but system complexity and cost increase
Solution Approach 1:
The patent employs a universal modular architecture where each camera system functions as an independent, self-contained module with identical processing capabilities. These standardized modules can be added, removed, or configured without affecting other system components. The central controller uses a standardized communication protocol to interface with any number of camera modules, enabling versatile functionality through simple module replication rather than complex custom integration, thereby controlling system complexity while enhancing adaptability.
4Area of stationary object
If the recording system is located in the trunk of the vehicle, then space in the main compartment is freed, but cable length and signal transmission issues increase
Solution Approach 1:
The patent replaces traditional mechanical cable-based signal transmission with a digital network communication system. Each camera system processes and encodes video signals locally, then transmits digital data packets through an Ethernet-based network to the central controller and storage system. This substitution eliminates the need for long analog video cables running through the vehicle, allowing flexible component placement (including in the trunk) without signal degradation, while freeing up space in the main compartment.
Data Source
AI summary
A vehicle-mounted system for recording video and audio. The system uses distributed processing, including encoding the video and audio at their source(s), and a high-speed, e.g., Ethernet, bus connecting the various system components and external devices. The system may include a display monitor which is integrated into the same housing as a rear view mirror of the vehicle, with the display monitor being located behind the mirror and video displayed on the monitor being visible through the mirror.