WiFi Camera Image Comparison for Freeze-Frame Detection
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Wireless IP cameras for automotive applications lack freeze frame detection, suffer from decreased video stream bandwidth over long distances, and fail to support low latency video streaming, which is crucial for trailer applications, and there is a need for effective humidity monitoring and low power operation.
Innovation Solution
Implement shock monitoring through an accelerometer, freeze frame detection via image comparison, adjust video stream resolution and frame rate for low latency, integrate humidity sensors, and enable low power operation by shutting down non-essential components during non-streaming periods.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of stationary object
If video streaming is performed wirelessly over long distances, then transmission distance is improved, but bandwidth decreases
Solution Approach 1:
The system dynamically adjusts video stream parameters including resolution and frame rate based on real-time wireless channel conditions and distance requirements, allowing optimization of bandwidth usage while maintaining acceptable video quality over long distances
2Productivity
If video streaming is performed wirelessly for automotive applications, then video transmission capability is improved, but latency increases
Solution Approach 1:
The system implements dynamic adjustment of video stream resolution and frame rate to minimize latency while maintaining acceptable video quality, allowing real-time or near-real-time video transmission for automotive applications
3Reliability
If the wireless IP camera operates continuously to monitor and stream video, then monitoring capability is improved, but power consumption increases
Solution Approach 1:
The camera system implements periodic operation modes where the main microprocessor and high-power components are shut down during non-streaming periods, with only essential components remaining active to conserve battery power while maintaining monitoring capability through periodic wake-ups
4Use of energy by moving object
If the main microprocessor and high-power components are shut down to conserve energy, then power consumption is reduced, but response time for command and control increases
Solution Approach 1:
The system maintains Bluetooth Low Energy functionality and a low-power antenna active during sleep mode to receive and process wake-up commands and control signals in advance, enabling rapid response when the main processor needs to be activated
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enhances warranty protection, reduces latency and power consumption, and maintains video quality by detecting shocks and humidity, while supporting long-distance wireless streaming and efficient energy use.
Implementation Method 1
A WiFi camera includes an accelerometer and detecting mechanical shock events. An electronic processor is communicatively coupled to the accelerometer and produces a record of the shock events detected by the accelerometer.
Implementation Method 2
A WiFi camera includes a humidity sensor detecting humidity levels. An electronic processor is communicatively coupled to the humidity sensor and produces a record of the humidity levels detected by the humidity sensor.
Data Source
AI summary
A method for detecting a freeze frame condition in a WiFi camera includes using the WiFi camera to capture a plurality of images. One of the images is compared to another one of the images. The freeze frame condition is detected as a result of determining that a level of similarity between the two captured images exceeds a threshold level.