Car Circuit Tester Voltage Temperature Detection
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Solution Overview
Problem
Existing car circuit testers are inefficient as they require separate devices for voltage and temperature detection, leading to increased complexity, risk of overheating, and potential fire hazards due to processor overload when detecting overloaded circuits.
Innovation Solution
A single car circuit tester with a sensing part that combines voltage and temperature detection capabilities, featuring a conductive metal housing for voltage detection and a thermal sensor for temperature detection, both connected to a processor that displays results on a screen.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single processor is used to control all functions including voltage detection and temperature detection, then device complexity is reduced, but the processor starts to overhead and the circuit is faulted easily
Solution Approach 1:
The patent divides the processing functions into two independent parts: a microcontroller for controlling test operations and a dedicated signal processing circuit for detecting voltage and temperature signals. This segmentation prevents the microcontroller from being overloaded by complex signal processing tasks, thereby maintaining processor reliability while keeping the overall device structure simple.
Solution Approach 2:
The patent introduces an intermediary signal processing circuit that acts as a mediator between the sensing components and the microcontroller. This intermediary handles the complex signal processing tasks, allowing the microcontroller to focus on control functions without overhead, thus resolving the contradiction between simplicity and reliability.
2Device complexity
If only a voltage tester is used, then the device is simple, but it cannot detect temperature of the circuit system
Solution Approach 1:
The patent merges voltage detection and temperature detection functions into a single integrated tester. The sensing probe includes both voltage sensing components and temperature sensing components that work together to provide comprehensive circuit diagnostics, thereby maintaining device simplicity while enhancing detection capability.
Solution Approach 2:
The patent creates a universal tester that can perform multiple functions: voltage detection, temperature detection, and overload protection. This multi-functional device eliminates the need for separate voltage testers and temperature detectors, providing versatile detection capability while keeping the device structure relatively simple.
3Adaptability or versatility
If the processor controls all functions including external power source connection and overload detection, then the device is integrated, but the processor overhead increases and circuit faults occur easily
Solution Approach 1:
The patent segments the functional responsibilities by assigning control functions to the microcontroller and signal processing functions to a dedicated circuit. This segmentation maintains functional integration while protecting the processor from overhead caused by complex real-time signal processing tasks.
Solution Approach 2:
The signal processing circuit operates autonomously to process voltage and temperature signals without requiring continuous microcontroller intervention. This self-service capability allows the microcontroller to focus on control functions, maintaining functional integration while ensuring processor stability.
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 simultaneous voltage and temperature detection with a single device, reducing the risk of processor overload and eliminating the need for multiple testers, thereby enhancing safety and reducing production costs.
Implementation Method 1
The second component detects the temperature owing to thermal conductivity of the first component
Data Source
AI summary
A car circuit tester that detects circuit is revealed. The car circuit tester is applied to circuit system and devices of cars for selective measurement of voltage and temperature. The car circuit tester includes a main machine, a sensing part, a processor and a screen. The processor is connected to screen circuit and circuit of the sensing part. The sensing part is in direct contact with an object to be detected and used for inputting voltage signals or temperature signals to the processor. After receiving the signals, the processor outputs parameters to the screen. The parameters are shown on or played through the screen.