Audio Cable Status Data Encoding for Secure Edge Device Monitoring
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Solution Overview
Problem
In IoT environments, existing technologies face challenges in monitoring and controlling mobile edge computing devices without wireless networks, as they rely on wireless communication for status checking and data protection prohibits the use of USB and display ports, limiting the ability to access device status in network-unavailable conditions.
Innovation Solution
A control system utilizing an audio cable to transmit sound data encoded with status information between a mobile PC and a display/setting PC, allowing status acquisition and setting operations even when wireless networks are unavailable, using audio input/output ports that are not restricted for security purposes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If wireless network is used for status checking, then information accessibility is improved, but network availability deteriorates in secure environments
Solution Approach 1:
The patent uses audio cables as an intermediary medium to transmit status information between the mobile edge computing device and external devices. Instead of directly using wireless networks or prohibited USB ports, the system encodes status data into audio signals that can be transmitted through audio jacks, which are not restricted for security purposes. This mediator approach allows information access while bypassing network and port restrictions.
Solution Approach 2:
The patent replaces the electronic/digital communication system (wireless network, USB) with an acoustic system. Status information is encoded into audio frequency signals that can be transmitted through the audio cable infrastructure. This substitution allows the system to communicate through a channel (audio ports) that is not blocked by security policies, effectively replacing prohibited communication methods with an allowed acoustic transmission method.
2Reliability
If USB port and display port are prohibited for security, then device security is improved, but operational accessibility deteriorates
Solution Approach 1:
The patent makes the audio port serve multiple functions beyond its traditional audio output purpose. The audio jack, originally designed only for audio transmission, is repurposed to carry encoded status information, control commands, and other data. This multi-functionality allows the audio port to replace prohibited USB and display ports for status checking and control operations without compromising security policies.
Solution Approach 2:
The patent changes the parameter being transmitted through the audio port from audio frequency signals (for sound) to encoded digital data signals (for status information). By modulating status data into audio-frequency carrier waves and transmitting them through the audio cable, the system transforms the function of the audio interface while maintaining compatibility with the port's electrical characteristics and security allowances.
3Adaptability or versatility
If audio cable is used for data transmission, then adaptability in network-unavailable conditions is improved, but device complexity increases
Solution Approach 1:
The patent implements self-service functionality where the mobile edge computing device automatically encodes its status information into audio signals and transmits them through the audio cable without requiring manual configuration or complex setup procedures. The device autonomously handles the encoding, modulation, and transmission processes, reducing the operational burden on users despite the added functional complexity.
Data Source
AI summary
According to one embodiment, a control system includes a first electronic device and a second electronic device connectable to the first electronic device via an audio cable. The first electronic device generates first sound data encoded with status information indicative of a state of the first electronic device, and transmits the first sound data to the second electronic device via the audio cable. The second electronic device receives the first sound data from the first electronic device via the audio cable, acquires the status information by decoding the first sound data, and displays the status information on a screen of the second electronic device.