Compact Video Surveillance Device with 30x Zoom and Cellular Modem
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Solution Overview
Problem
Existing video surveillance systems are bulky, inefficient, and lack a compact design with onboard recording and video compression capabilities, making them unsuitable for covert law enforcement operations and requiring complex tethering of multiple devices.
Innovation Solution
A compact video surveillance device integrating a 30× zoom camera, internal recorder, and cellular modem, allowing for live video transfer over 3G/4G/LTE networks at low bit rates, with a miniature video compressor for high-quality video feed and long-term storage, designed for covert deployments with a small form factor.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple separate devices (camera, recorder, video compressor, modem) are tethered together to form a surveillance system, then the system can perform surveillance functions, but the system becomes significantly larger in size and difficult to conceal
Solution Approach 1:
The patent combines multiple separate surveillance devices (camera, recorder, video compressor, and modem) into a single integrated unit. This merging eliminates the need for tethering multiple devices together, significantly reducing the overall system size and enabling covert deployment while maintaining full surveillance functionality.
Solution Approach 2:
The integrated device performs multiple functions simultaneously - capturing video, compressing it, recording it, and transmitting it via cellular network - all within a single unit. This multi-functionality approach allows the device to replace an entire system of separate devices, achieving both compactness and comprehensive surveillance capability.
2Device complexity
If fixed length camera lenses are used in surveillance systems, then the system structure is simple, but the image quality is limited based on object distance
Solution Approach 1:
The patent replaces fixed length camera lenses with a zoom lens system that can dynamically adjust its focal length. This dynamic lens allows the device to change its optical characteristics based on the distance to the target, maintaining high image quality whether the subject is close or far away, while the control system manages the complexity of this dynamic adjustment.
3Device complexity
If no video compressor is onboard, then the device can be simpler, but live video transfer over cellular networks becomes inefficient at low bandwidth
Solution Approach 1:
The patent incorporates a video compressor onboard that performs video compression before transmission over the cellular network. This preliminary compression action reduces the data bandwidth requirements, enabling efficient live video transfer over low-bandwidth cellular connections (3G/4G/LTE) while maintaining acceptable video quality, thus solving the efficiency problem without requiring complex post-processing or external compression equipment.
4Volume of moving object
If no internal recorder is provided, then the device can be smaller, but long-term video storage capability is lost
Solution Approach 1:
The patent integrates an internal recorder into the compact surveillance device, combining storage functionality with the other integrated components (camera, compressor, modem). This integration allows long-term video storage capability to be achieved within the constrained form factor, eliminating the need for separate external recording equipment while maintaining extended storage duration.
Data Source
AI summary
A compact video surveillance device consisting of a 30× zoom camera with internal recorder, cellular modem, and a video compressor in a compact size that can be easily concealed; the device having a length of 96.9 mm, a height of 74.24 mm, and a width of 51.2 mm. Live video transfer is at bit rates as low as 10 kbps by the video compressor for transfer by the modem across 3G/4G/LTE networks.