Video Doorbell Two-Wire Power and Chime Control
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Solution Overview
Problem
Existing video doorbell systems face challenges when integrating video capabilities with the existing two-wire interface, as it disrupts power supply to the doorbell, and the use of rechargeable batteries is not environmentally friendly and has reduced performance in extreme temperatures.
Innovation Solution
A video doorbell system that uses a transformer to convert premise power to a suitable voltage, providing continuous power to the video doorbell through a two-wire interface, while utilizing special signaling to activate the indoor chime, eliminating the need for a rechargeable battery.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a rechargeable battery is used to provide continuous power to the video doorbell, then the doorbell can operate during button press, but the system becomes environmentally unfriendly and performs poorly in extreme temperatures
Solution Approach 1:
The patent removes the rechargeable battery component entirely from the system. Instead of extracting only the harmful aspect, the entire battery subsystem is eliminated and replaced with a transformer-based power conversion system that provides continuous power through the existing two-wire interface without environmental or temperature-related drawbacks.
Solution Approach 2:
The patent replaces the mechanical/chemical energy storage system (rechargeable battery) with an electrical energy conversion system (transformer). The transformer converts the existing AC power from the two-wire interface into suitable DC voltage for the video doorbell, eliminating the need for chemical energy storage and conversion.
2Ease of manufacture
If the two-wire interface is used to power the video doorbell, then installation is simplified, but the power supply is disrupted when the button is pressed
Solution Approach 1:
The patent introduces a transformer as an intermediary device between the existing two-wire AC interface and the video doorbell's power requirements. The transformer converts the AC power into regulated DC power, acting as a buffer that isolates the video doorbell from the switching and disruption events occurring in the original two-wire circuit.
Solution Approach 2:
The patent changes the electrical parameters of the power supply by converting from AC voltage through a transformer to regulated DC voltage. This parameter transformation allows the video doorbell to receive stable, continuous power regardless of the state of the original two-wire button circuit.
3Reliability
If a battery is used to maintain chime functionality, then the chime can be activated, but the system requires additional components and maintenance
Solution Approach 1:
The patent makes the transformer serve multiple functions: it provides continuous power to the video doorbell, enables chime activation through the two-wire interface, and eliminates the need for separate battery components. This multi-functionality reduces overall system complexity while maintaining all required functionalities.
Solution Approach 2:
The patent merges the power supply function and chime activation function into a single integrated system using the transformer and two-wire interface. Instead of separate battery-powered systems for doorbell operation and chime activation, both functions are combined into one unified power delivery mechanism.
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
The solution ensures continuous power to the video doorbell, maintains chime functionality without battery reliance, and improves environmental sustainability by eliminating the need for rechargeable batteries.
Implementation Method 1
a transformer, operable to convert a premise's power supply to a suitable voltage for the video doorbell system
Data Source
AI summary
A video doorbell system operable to generate a chime sound, comprises a transformer, operable to convert a premise's power supply to a suitable. The video doorbell system further includes a video doorbell having a processor, a video camera and a wireless communication module. The video doorbell is electrically connected to the transformer by a two-wire interface. The processor within the video doorbell operable to generate a chime signal using power supplied from the two-wire interface when a doorbell button is depressed. The video doorbell system further includes a chime controller, electrically connected to the transformer and the video doorbell by the two-wire interface. The video doorbell system continues to provide sufficient power to the video doorbell from the transformer via the two-wire interface so as to be able to operate the processor, video camera and wireless communication module while the doorbell button is currently depressed.