Terminal Device Automatic Field-Specific Link Formation
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Solution Overview
Problem
Conventional field communication technologies require manual operation and are expensive, leading to inconvenience for users, as they often connect to wrong targets based on signal strength rather than field specificity.
Innovation Solution
A system and method where a terminal device broadcasts an ultrasonic audio signal and an electro-magnetic signal with encoded connection configuration information, allowing only devices within the same field to establish an automatic connection, preventing connections to devices outside the intended field.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If manual operation is required for field communication connection, then connection accuracy is improved, but ease of operation deteriorates
Solution Approach 1:
The terminal device automatically performs field detection and connection establishment without requiring manual user operation. The device uses its speaker to detect audio signals containing field identifiers and automatically establishes connections with devices in the same field, making the system serve itself rather than requiring human intervention.
Solution Approach 2:
The terminal device continuously broadcasts and detects audio signals containing field identifiers before actual connection is needed. This preliminary detection of field information allows the device to be ready for automatic connection establishment when connection requirements arise, without requiring manual configuration at connection time.
2Difficulty of detecting and measuring
If additional sensors are configured for device detection, then detection capability is improved, but device complexity deteriorates
Solution Approach 1:
The terminal device uses its existing speaker component for dual purposes: normal audio output and field detection by receiving audio signals containing field identifiers. This eliminates the need for dedicated detection sensors, as the speaker serves multiple functions including field identification, thereby reducing device complexity while maintaining detection capability.
Solution Approach 2:
The patent uses audio signals as an intermediary carrier to transmit field identifier information. Instead of requiring direct sensor-to-sensor communication or complex detection mechanisms, the system employs audio signals (which can be transmitted through air and walls) as a mediator to convey field information between terminal devices, simplifying the detection architecture.
3Ease of operation
If automatic connection is implemented without field specificity, then ease of operation is improved, but reliability deteriorates
Solution Approach 1:
The terminal device continuously detects and stores field identifier information from audio signals before connection establishment. This preliminary acquisition of field specificity information ensures that when automatic connection is initiated, the device can verify field compatibility and connect only to appropriate targets, maintaining both ease of operation and connection reliability.
Solution Approach 2:
The system uses audio signals containing field identifiers as feedback information to guide connection decisions. The terminal device receives feedback about the field environment through audio detection and uses this information to determine whether automatic connection should proceed, ensuring connections are made only within the correct field context.
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 enhances the automatic connection function by ensuring the terminal device connects only to the correct target within the field, reducing the risk of information leakage and manufacturing costs by eliminating the need for additional sensors.
Implementation Method 1
The first audio signal may include an ultrasonic signal supported by the data over sound technology. The frequency of the ultrasonic signal may be greater than 20,000 Hz.
Implementation Method 2
The Bluetooth communication transceiver is configured to broadcast an electro-magnetic signal, wherein the electro-magnetic signal comprises an encoded message.
Data Source
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AI summary
A system, a terminal device, and a method for forming a communication link are provided. The method includes: broadcasting an audio signal by a speaker of a first terminal device, wherein the audio signal includes an identifier of the first terminal device; broadcasting an electro-magnetic signal by a first Bluetooth communication transceiver of the first terminal device, wherein the electro-magnetic signal comprises an encoded message; and encoding a first message according to the identifier to generate the encoded message by a first processing apparatus of the first terminal device.