Night Vision Calibration Heating Element With Closed-Loop Temperature Control
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Solution Overview
Problem
The night vision system in automobiles fails to calibrate accurately after fault repair due to the absence of a target heating body, leading to reduced accuracy.
Innovation Solution
A night vision system calibration device with a heating element and a circuit drive apparatus that includes a power module, controller, and voltage converter, which emits infrared radiation through a through hole, allowing for precise temperature control and calibration by adjusting the supply voltage based on ambient and heating element temperatures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a target heating body is not provided after night vision system fault repair, then the night vision system cannot be calibrated, but adding a target heating body increases device complexity
Solution Approach 1:
The heating element is designed to serve multiple functions: it acts as both a heating source for calibration and an infrared radiation emitter for night vision system testing. The second housing with through hole allows the heating element to function as a calibration target while maintaining structural integration, thereby providing calibration capability without significantly increasing overall device complexity
Solution Approach 2:
The heating element is nested within the accommodating cavity formed by the first and second housings. The second housing covers the first housing and contains the heating element inside, creating a compact nested structure that provides the target heating body functionality while minimizing space occupation and device complexity
2Measurement precision
If the heating element temperature is not controlled, then infrared radiation emission is unstable, but implementing temperature control increases device complexity
Solution Approach 1:
The controller receives temperature feedback from the temperature sensor attached to the heating element and adjusts the power supply voltage accordingly. This closed-loop feedback control ensures stable infrared radiation emission by maintaining consistent heating element temperature, while the integration of simple sensing and control circuitry minimizes the increase in device complexity
Solution Approach 2:
The heating element system is designed to self-regulate its temperature through the controller and temperature sensor combination. The system automatically adjusts power consumption based on temperature feedback without requiring external intervention, achieving stable infrared radiation emission while keeping the control mechanism simple and integrated
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 accurate calibration of the night vision system post-repair by providing a target heating body, improving system accuracy and reliability through controlled infrared radiation emission.
Implementation Method 1
a heating element (2), including a heating area... the heating area is used for emitting infrared radiation through the through hole
Implementation Method 2
the heating area is used for emitting infrared radiation through the through hole
Data Source
AI summary
The present invention provides a temperature control method for a heating element, a night vision system calibration device and a system. The night vision system calibration device includes: a first housing, a heating element and a second housing covering the first housing. The heating element includes a heating area, a shape of the heating area being a shape of a target heating body used when a night vision system is calibrated. The second housing and the first housing form an accommodating cavity, and the heating element is disposed in the accommodating cavity. The second housing is provided with a through hole communicating with the accommodating cavity and adapted to the shape of the heating area, and the heating area is configured to emit infrared radiation through the through hole. In the temperature control method for a heating element, the night vision system calibration device and the system provided in the present invention, a target heating body for a night vision system used when the night vision system is calibrated may be provided, so that the night vision system after fault repair can be calibrated based on the target heating body, thereby improving the accuracy of the night vision system after the fault repair.