Dual-Field Video Security Camera for Door Blind Spot Elimination
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Solution Overview
Problem
Conventional home security cameras do not provide a view of packages left at the door or notices on the door, nor can they see if a door is open or if visitors are interacting with it, leading to vulnerabilities such as package thefts and missed interactions.
Innovation Solution
A video security camera system with two fields of view, one capturing the area in front of the camera and another capturing the area below and behind it, wirelessly communicating video streams to a user device for real-time monitoring and interaction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If a single video capture device is used, then the device complexity is low, but the field of view coverage is insufficient and creates blind spots
Solution Approach 1:
The patent divides the monitoring task into two separate video capture devices: a first video capture device for capturing the area in front of the door and a second video capture device for capturing the area below and behind the door. This segmentation eliminates blind spots by assigning specific monitoring zones to dedicated devices, ensuring comprehensive coverage of packages, notices, and door interactions that would be invisible to a single device.
Solution Approach 2:
The patent transitions from a single-field-of-view approach to a multi-dimensional monitoring system by adding a vertical dimension with a second camera positioned below the first. This dimensional change enables simultaneous capture of front-facing activities and below-door interactions, effectively eliminating the blind spot problem through spatial expansion of the monitoring footprint.
2Measurement precision
If conventional security cameras are mounted high, then the view is clear, but packages and door interactions below are not visible
Solution Approach 1:
The patent segments the monitoring function by deploying a second video capture device specifically for capturing the area below the door level. This dedicated below-door camera ensures clear visibility of packages, notices, and door interactions without requiring the main camera to be positioned lower, thus preserving the clarity advantage of high mounting while eliminating the blind spot.
Solution Approach 2:
The second video capture device acts as an intermediary that bridges the visibility gap between the high-mounted main camera and the below-door area. By introducing this intermediate capturing device, the system achieves both high viewing clarity and comprehensive below-door visibility, resolving the contradiction between elevation benefits and blind spot elimination.
3Reliability
If package theft is prevented by visible cameras, then deterrence is improved, but blind spots allow undetected theft
Solution Approach 1:
The patent segments the security monitoring into two dedicated zones with separate video capture devices, ensuring that both the front area and below-door area are independently monitored. This segmentation eliminates blind spots that would otherwise allow thieves to operate undetected, while the distributed camera positions maintain the visible deterrence effect throughout the entire package delivery zone.
Solution Approach 2:
By adding the vertical dimension with a second camera positioned below the main camera, the system creates a three-dimensional monitoring envelope that eliminates blind spots. This dimensional expansion ensures that thieves cannot exploit vertical blind spots to steal packages or interact with the door undetected, while the multiple viewing angles enhance the overall security deterrence.
Data Source
AI summary
An apparatus includes a first video capture device, a second video capture device and a circuit. The first video capture device may be configured to capture a first plurality of video frames of a first field of view. The second video capture device may be configured to capture a second plurality of video frames of a second field of view. The circuit may be configured to generate a first video stream in response to the first video frames, generate a second video stream in response to the second video frames and wirelessly communicate the first video stream and the second video stream to a device. The first field of view may capture an area in front of the apparatus. The second field of view may capture an area under and behind the apparatus. The second field of view may comprise a blind spot of the first field of view.