Defogging control system and method
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional electric heating wires in refrigeration equipment operate continuously, leading to excessive energy consumption and costs, as they are needed to prevent moisture condensation on transparent glass surfaces.
Innovation Solution
A defogging control system that includes first and second heating wires with different powers, an electrical sensor, driver, timer, environment sensing module, and control module, which activate and deactivate the heating wires based on ambient temperature, humidity, and compressor operation time to optimize energy use and prevent moisture condensation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If electric heating wires are operated continuously to prevent moisture condensation on transparent glass, then the glass surface remains clear and visible, but energy consumption increases significantly
Solution Approach 1:
The heating wire operation transitions from static continuous operation to dynamic conditional operation. The control module dynamically adjusts heating wire activation based on real-time environmental parameters (temperature, humidity) and operational state (compressor running status), optimizing energy consumption while maintaining defogging effectiveness when needed.
Solution Approach 2:
The system changes the operational parameters of heating wires from fixed continuous operation to variable operation based on environmental conditions. By monitoring temperature and humidity parameters along with compressor status, the system adjusts heating wire activation timing and duration to match actual defogging needs, reducing unnecessary energy consumption.
2Reliability
If electric heating wires are operated 24 hours a day to prevent condensation, then moisture condensation is prevented, but operating costs increase due to high electricity rates
Solution Approach 1:
The heating wires operate periodically rather than continuously. The control module determines specific time periods when heating is necessary based on environmental conditions and compressor operation, activating heating wires only during these periodic intervals. This periodic operation maintains condensation prevention effectiveness while significantly reducing overall energy consumption and associated costs.
Solution Approach 2:
The system uses environmental sensors and compressor status signals to automatically determine when heating is needed, eliminating the need for continuous manual operation or unnecessary heating during favorable conditions. The system serves itself by monitoring its own operational context and adjusting heating wire activation accordingly.
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
The system reduces energy consumption by selectively activating heating wires only when necessary, thereby saving electricity while effectively preventing moisture condensation on refrigeration storage apparatus surfaces.
Implementation Method 1
some electric heating wires are usually introduced to particular surfaces of the refrigeration equipment
Data Source
AI summary
A defogging control system includes a plurality of first heating wires, a plurality of second heating wires, an electrical sensor and driver, a timer, an environment sensing module, and a control module. The electrical sensor and driver is utilized to generate a start signal or a stop signal, corresponding to a controller of a refrigeration storage apparatus. The timer is utilized to count a real-time operation time and record a previous operation time. The environment sensing module is utilized to sense a temperature and a humidity. The control module is utilized to control the first heating wires and the second heating wires by the real-time operation time, the previous operation time, the temperature, and the humidity. Further, a defogging control method is also provided.