Self-Powered Wireless Sensing for Dry Apparatus Drying Control
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Solution Overview
Problem
Existing dry apparatuses face challenges in accurately analyzing and controlling the drying process for subjects with varying sizes, particularly due to the limitations of contact-type sensor modules which deteriorate in accuracy with larger volumes.
Innovation Solution
A dry apparatus equipped with a self-powered sensing device that constructs a wireless communication link using power generated from the drum's rotation, allowing for accurate detection and analysis of the subject to be dried, and a processor that controls the display and operation of the apparatus based on received sensing data.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a contact-type sensor module is used to determine dry degree, then the sensor can be attached inside the dry apparatus, but the accuracy deteriorates when the volume of the subject to be dried is big
Solution Approach 1:
The patent replaces the contact-type sensor module with a non-contact sensor module that uses electromagnetic radiation (such as microwave or radio wave) to measure the dry degree of the subject. This substitution eliminates the need for physical contact between the sensor and the subject, thereby maintaining measurement accuracy regardless of the subject's volume. The non-contact sensor can accurately detect moisture content through electromagnetic wave interaction with the material being dried.
2Measurement precision
If a non-contact sensor module is used, then the measurement accuracy for large volume subjects is improved, but the device complexity increases
Solution Approach 1:
The non-contact sensor module is designed to perform multiple functions: it not only measures the dry degree of the subject but also can detect the presence of the subject, determine the subject's volume, and provide information for process control. By integrating these multiple functions into a single sensor module, the patent reduces the overall device complexity compared to using separate sensors for each function.
3Device complexity
If the sensor module is attached inside the dry apparatus, then the structure is simple, but it is difficult to correctly analyze the subject to be dried
Solution Approach 1:
The patent transitions from a contact-based measurement approach (requiring sensor attachment to the subject surface) to a non-contact measurement approach where the sensor is positioned in the drying chamber to measure the subject through electromagnetic radiation. This dimensional change allows the sensor to gather information about the entire subject volume without physical contact, improving subject analysis accuracy while maintaining structural simplicity.
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 solution enables precise control of the drying process, improves accuracy in detecting and analyzing subjects of varying sizes, and enhances user convenience through visual feedback and alarm notifications.
Implementation Method 1
a sensing device that constructs a wireless communication link with the communication interface by using power generated through self-power generation according to a rotation of the drum
Data Source
AI summary
A displaying apparatus includes a communication interface, a display, a drum accommodating a subject to be dried, a sensing device that constructs a wireless communication link with the communication interface by using power generated through self-power generation according to a rotation of the drum, a hot air supplying device that supplies hot air to the drum, and a processor configured to, based on constructing the wireless communication link between the sensing device and the communication interface, display a first object on the display.