IP Camera Auxiliary Sensor Integration via Power over Ethernet
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Solution Overview
Problem
CCTV systems face high installation costs due to the need for extensive data and power cabling, which can exceed the cost of the cameras themselves, and there is a need for additional sensing capabilities beyond video capture without compromising the video capture quality.
Innovation Solution
The integration of IP cameras with auxiliary sensors such as temperature, humidity, and acceleration sensors, which operate at a lower sampling rate than video signals, using Power over Ethernet (POE) for power and data transmission, allowing for efficient video capture and additional sensing capabilities without increasing installation costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional CCTV systems use separate data and power cabling for each video camera, then reliable power supply and data transmission are achieved, but installation costs increase significantly
Solution Approach 1:
The patent combines power transmission and data communication into a single Ethernet cable through Power over Ethernet (POE) technology. The POE adapter and switch integrate both power delivery and data transmission functions, eliminating the need for separate power cabling and reducing installation complexity while maintaining reliable power supply to cameras.
Solution Approach 2:
The Ethernet cable serves multiple functions simultaneously: it provides both electrical power to the camera and carries video data for transmission. The POE system enables a single cable infrastructure to fulfill both power delivery and data communication roles, reducing overall system complexity and installation costs.
2Adaptability or versatility
If auxiliary sensors are added to cameras to provide additional sensing capabilities, then system functionality improves, but device complexity increases
Solution Approach 1:
The patent integrates multiple sensor types (optical sensor for video, auxiliary sensors for temperature, humidity, acceleration) into a single camera device that handles diverse sensing functions. The processor consolidates data from all sensors and the POE interface transmits everything through one cable, allowing the system to provide multiple sensing capabilities without proportionally increasing complexity.
Solution Approach 2:
The system employs different sampling rates for different sensor types: the optical sensor captures video at high frame rates while auxiliary sensors operate at lower sampling rates. The processor manages these periodic data streams differently, reducing processing overhead and allowing multiple sensors without significant complexity increase.
3Measurement precision
If video data is transmitted at high sampling rates continuously, then video capture quality is maintained, but data transmission bandwidth requirements increase
Solution Approach 1:
The patent implements periodic transmission of auxiliary sensor data at lower sampling rates compared to continuous video streaming. The processor transmits video data at high sampling rates for quality maintenance while sending auxiliary sensor data periodically at reduced rates, optimizing the balance between data quality and transmission bandwidth utilization.
Solution Approach 2:
Different data streams receive different transmission priorities and qualities: video data maintains high sampling rates for critical quality requirements, while auxiliary sensor data uses lower sampling rates appropriate to its needs. This localized quality approach optimizes overall system performance without uniformly maximizing all data streams.
Data Source
AI summary
Systems and apparatus for sensing and video capture include at least one camera with an optical sensor that captures video image data of a first sampling rate. An auxiliary sensor captures auxiliary data at a second sample rate. A processor is communicatively connected to the optical sensor and auxiliary sensor. The processor transmits video image data captured at the first sample rate auxiliary sensor data captured at the second sampling rate across a data connection to a centralized computer that receives the video image data and the auxiliary sensor data and operate to present the video image data and the auxiliary sensor data on a graphical display.