Doorbell Current Threshold Configuration for Silent Charging
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Solution Overview
Problem
Existing doorbell devices that integrate with traditional chime systems face issues as they may draw too much current, triggering the chime or causing circuit burnout, which affects user experience and requires frequent recharging of energy storage devices.
Innovation Solution
A mechanism for the doorbell device to determine the maximum current it can draw from the circuit without activating the chime, allowing it to efficiently charge its energy storage without triggering the chime, and configuring itself to draw this determined current level.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the doorbell device draws high current through the doorbell circuit for efficient charging, then charging speed is improved, but the doorbell chime may be activated or the circuit may be damaged
Solution Approach 1:
The doorbell device performs preliminary testing during installation to determine the maximum safe current draw capacity of the existing doorbell circuit before normal operation. The controller incrementally tests current levels and identifies the threshold that does not activate the chime, storing this information for use during charging operations.
Solution Approach 2:
The doorbell device dynamically adjusts its current draw based on the determined circuit capacity. The energy storage device charges at the maximum safe current level identified during testing, optimizing charging speed while remaining below the threshold that would activate the chime or damage the circuit.
2Use of energy by moving object
If the doorbell device draws sufficient current to charge the energy storage device, then energy storage capability is improved, but the doorbell chime may be accidentally activated
Solution Approach 1:
The controller continuously monitors the doorbell circuit to detect when the chime is activated. Based on this feedback, the controller adjusts the current draw to remain below the chime activation threshold during charging operations, preventing unwanted chime activation while maximizing safe charging current.
Solution Approach 2:
The doorbell device changes its operating parameters by determining the specific current threshold that activates the chime and configuring itself to operate at or below this threshold during charging. This parameter optimization allows efficient energy storage without triggering the chime.
3Productivity
If the doorbell device is configured to draw maximum safe current, then charging efficiency is improved, but precise current measurement and control capability is required
Solution Approach 1:
The controller uses incremental testing with predetermined current steps to determine the maximum safe current. Rather than requiring continuous precise measurement, the system tests at discrete current levels and identifies the threshold, simplifying the measurement requirements while achieving optimal charging efficiency.
Data Source
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AI summary
In one aspect, an example method includes drawing a current through a doorbell circuit. While drawing the current through the doorbell circuit, the example method includes determining, by the doorbell device, a maximum doorbell circuit current that will not activate a doorbell chime. Based on determining the maximum doorbell circuit, the example method includes configuring a doorbell device to draw the determined maximum doorbell circuit current through the doorbell circuit. Determining the maximum doorbell circuit current that will not activate the doorbell chime further includes: (i) determining whether the current being drawn through the doorbell circuit has activated the doorbell chime, (ii) if the current being drawn through the doorbell circuit has activated the doorbell chime, decrementing the current drawn through the doorbell circuit, and (iii) if the current being drawn through the doorbell circuit has not activated the doorbell chime, incrementing the current drawn through the doorbell circuit.