Low-Frequency Wireless Communication Through Metal Shields
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Wireless high-frequency communication signals struggle to penetrate metal shields, resulting in weak communication signals and short distances, which hinders the effective monitoring of internal food temperature during the food processing industry, particularly for roast meat and other roasted products.
Innovation Solution
A wireless low-frequency communication method and system that modulates carrier signals into low-frequency signals to penetrate metal shields, allowing for effective communication between terminals, including self-charging capabilities and temperature data transmission, enabling reliable communication and temperature monitoring.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If wireless high-frequency communication signals are used, then communication speed is improved, but signal penetration through metal shields deteriorates
Solution Approach 1:
The patent changes the frequency parameter of the communication signal from high-frequency (Bluetooth 2.4 GHz) to low-frequency (125 kHz), which fundamentally alters the signal's interaction with metal shields. This parameter change enables the signal to penetrate metal casings while maintaining communication functionality, directly resolving the contradiction between communication speed and signal penetration.
Solution Approach 2:
The patent introduces a low-frequency electromagnetic field as an intermediary that can penetrate metal shields and enable wireless communication. This intermediary allows information transmission through the metal casing barrier, solving the penetration problem while maintaining communication capability.
2Productivity
If wireless high-frequency communication signals are used, then data transmission efficiency is improved, but communication distance through metal shields deteriorates
Solution Approach 1:
By changing the frequency parameter from high-frequency to low-frequency (125 kHz), the patent enables signals to travel through metal shields over effective distances. The low-frequency signals can penetrate the metal casing and reach external devices, thereby extending communication distance through metal shields while maintaining data transmission efficiency.
3Ease of operation
If Bluetooth communication is used, then wireless connectivity is improved, but penetration through metal casings deteriorates
Solution Approach 1:
The patent changes the operating frequency from Bluetooth's 2.4 GHz to 125 kHz, which fundamentally alters how the signal interacts with metal casings. This parameter change eliminates the harmful interference caused by metal shields, allowing wireless connectivity to function reliably through metal-cased roaster devices.
Solution Approach 2:
The patent replaces the electromagnetic mechanism of Bluetooth (high-frequency radio waves) with a low-frequency electromagnetic field mechanism that has different interaction properties with metal. This substitution allows the communication system to overcome the harmful effect of metal casings while maintaining wireless connectivity functionality.
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
This solution strengthens communication signals and increases communication distances through metal shields, ensuring reliable data transmission and temperature monitoring, even in environments where high-frequency signals fail, such as within metal-cased roaster devices.
Implementation Method 1
a first low-frequency communication terminal modulates a first carrier signal loaded with first data into a first low-frequency signal and sends the first low-frequency signal to a second low-frequency communication terminal
Implementation Method 2
when receiving the first low-frequency signal, the second low-frequency communication terminal demodulates the first low-frequency signal into the first carrier signal and analyzes the first carrier signal to obtain the first data
Implementation Method 3
the second low-frequency communication terminal performs self-charging when receiving the first low-frequency signal
Data Source
AI summary
This application discloses a wireless low-frequency communication method and a wireless low-frequency communication system. The wireless low-frequency communication method includes: a first low-frequency communication terminal modulates a first carrier signal loaded with first data into a first low-frequency signal and sends the first low-frequency signal to a second low-frequency communication terminal. The first data refers to instruction data issued by a user. When receiving the first low-frequency signal, the second low-frequency communication terminal demodulates the first low-frequency signal into the first carrier signal and analyzes the first carrier signal to obtain the first data. Communication is carried out through wireless low-frequency signals penetrating metal shields. Communication signals can be strengthened while communication distances can be increased with the metal shields. This application solves the problems of weak communication signals and short communication distances caused by wireless high-frequency signals failing to penetrate a sensor or a roaster device.