Driver Auxiliary Load Detection via Power Consumption Monitoring
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing drivers lack efficient mechanisms to detect and respond to changes in power consumption at auxiliary outputs, particularly in lighting systems, which can lead to unauthorized loads drawing power and potentially causing attacks or system instability.
Innovation Solution
A driver system that detects instantaneous changes in power consumption at auxiliary outputs to trigger actions such as power cutoff or authorization checks, ensuring only authorized loads receive power and maintaining primary load operation by using a driver controller with a power limiting unit and permission checker.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a driver provides power to auxiliary outputs without monitoring, then auxiliary loads can be connected freely, but unauthorized loads may draw power and cause system instability or attacks
Solution Approach 1:
The driver controller continuously monitors power consumption at the auxiliary output and detects changes that indicate load connection or disconnection. This feedback mechanism enables the system to respond to auxiliary load events in real-time, maintaining system reliability while allowing auxiliary connectivity.
Solution Approach 2:
The driver performs preliminary actions by detecting power consumption changes before unauthorized operations can occur. The system proactively identifies when an auxiliary load is connected or disconnected and triggers appropriate responses, preventing potential system instability or attacks before they can execute.
2Reliability
If the driver monitors power consumption to detect auxiliary load connection, then unauthorized loads can be identified, but the device complexity increases
Solution Approach 1:
The driver utilizes its existing power management circuitry to monitor auxiliary output power consumption without requiring separate dedicated monitoring hardware. The system serves itself by using the same power supply infrastructure to both power the auxiliary output and detect changes in power consumption, thereby identifying auxiliary load connections.
Solution Approach 2:
The power supply and control circuitry are designed to perform multiple functions: providing power to the auxiliary output, monitoring power consumption levels, detecting load connection events, and triggering appropriate responses. This multi-functionality reduces the need for separate dedicated components for each function.
3Reliability
If the driver triggers actions on power consumption change, then system security is improved, but the loss of time for response actions occurs
Solution Approach 1:
The driver controller is designed to rapidly process power consumption changes and trigger appropriate actions without unnecessary delays. The system rushes through the detection and response process by using immediate threshold comparisons and pre-programmed response protocols, minimizing the time between detecting an auxiliary load event and executing the security response.
Solution Approach 2:
The system performs preliminary actions by having pre-configured response protocols ready before events occur. When power consumption changes indicate an auxiliary load connection, the driver immediately executes predetermined security measures, reducing response time by avoiding deliberation or complex decision-making during the actual event.
Data Source
Figure 1~2
Figure 3~4
Figure 5~6
AI summary
There is provided a driver having a primary output, for a primary load, and an auxiliary output, for an auxiliary load. A power supply of the driver supplies power to both outputs. Connection or disconnection of an auxiliary load is determined by detecting a change in power consumption at the auxiliary output, and an action is performed by a driver controller in response to this change in power consumption.