Control System for Load Power Abnormality Detection
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Solution Overview
Problem
Existing control systems cannot accurately determine the detailed reason of power supply abnormalities in load circuits, leading to prolonged diagnosis and repair times.
Innovation Solution
A control system that includes a power supply control device with current detection means and an instruction output device with voltage detection means, determination means, and specification means, allowing for abnormality detection and reason specification based on current and voltage values, and power supply/shutoff instructions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If only current value is used for abnormality determination, then the determination process is simple, but the measurement precision of abnormality reason is insufficient
Solution Approach 1:
The patent combines current detection means and voltage detection means into a unified abnormality determination system. By merging these two detection functions, the system achieves precise identification of abnormality reasons (open circuit vs. short circuit) without requiring overly complex individual detection mechanisms. The combination of current and voltage information enables accurate diagnosis while maintaining reasonable device complexity.
2Productivity
If detailed abnormality specification is implemented, then the repair efficiency is improved, but the determination process complexity increases
Solution Approach 1:
The patent implements a feedback mechanism where the abnormality determination result is fed back to guide repair actions. The system determines whether an open circuit or short circuit has occurred based on current and voltage measurements, then provides this information back to the user or maintenance system. This feedback enables rapid identification of the specific abnormality type, significantly improving repair efficiency without requiring overly complex determination logic.
3Measurement precision
If both current and voltage detection are implemented, then the abnormality determination accuracy is improved, but the device complexity increases
Solution Approach 1:
The patent designs the detection system to serve multiple functions: current detection for abnormality identification, voltage detection for abnormality classification, and combined analysis for precise reason specification. By making the detection system multi-functional, the patent achieves high abnormality detection accuracy using a unified detection architecture rather than requiring separate specialized systems for each measurement type.
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
Enables precise determination of power supply abnormalities and their causes, reducing diagnosis and repair times by considering both current and voltage values.
Implementation Method 1
current detection means for detecting a current flowing from the battery to the load
Implementation Method 2
voltage detection means for detecting a voltage applied to the load
Data Source
AI summary
Provided is a control system that can appropriately determine whether or not supply of power to a load is abnormal, and can specify a detailed reason of the abnormality. A control circuit supplies power to a load and shuts off the supply of power in accordance with a power supply/shutoff instruction to supply or shut off power from a battery to the load. The power supply/shutoff instruction is output from a microcomputer to the control circuit. A control unit determines whether or not the supply of power from the battery to the load is abnormal, based on (i) whether the power supply/shutoff instruction output from the output unit is to supply power or shut off the supply of power, (ii) the value of a current flowing from the battery to the load, and (iii) the value of a voltage applied to the load, and specifies a reason of the abnormality.