Wireless Relay Device for Secure Group Communication
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Solution Overview
Problem
Conventional wireless communication systems for groups, such as in military or police settings, often require a designated operator for long-distance communication and lack direct communication capabilities between members and a command post using short-distance wireless portable devices.
Innovation Solution
A data processing method and device that enables direct communication between members with short-distance wireless portable devices and a long-distance wireless relay device, using Wi-Fi for secure communication within the group and radio transmission for external communication, with encryption and decryption processes to manage user voice signals based on device identification.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a designated operator uses a wireless relay device for long-distance communication, then communication with remote command posts is achieved, but communication efficiency and directness deteriorate due to the need for separate device operation and intermediate relay
Solution Approach 1:
The patent combines the short-distance wireless communication function (originally in portable devices) and long-distance wireless relay function (originally in separate relay devices) into a single integrated portable device. This merging eliminates the need for separate relay device operation and intermediate relaying, allowing members to directly communicate with command posts while maintaining communication reliability through unified protocol handling.
Solution Approach 2:
The portable device is designed with multi-functionality, incorporating both Wi-Fi module for short-distance group communication and radio transmission unit for long-distance communication with command posts. This universal design allows the same device to perform multiple communication functions, improving efficiency by eliminating the need for separate dedicated relay devices.
2Adaptability or versatility
If separate wireless relay devices are operated for long-distance communication, then remote communication capability is achieved, but device complexity and operational burden increase
Solution Approach 1:
The patent merges the functionality of separate relay devices into the standard portable device. Each portable device now contains both Wi-Fi communication capability for group members and radio transmission capability for command post communication, eliminating the need for additional dedicated relay devices and reducing overall system complexity.
Solution Approach 2:
Each portable device is equipped with self-service capabilities including automatic identification of command posts, automatic selection of appropriate communication protocols (Wi-Fi or radio), and automatic encryption/decryption operations. This self-service functionality reduces operational burden on users while maintaining adaptability to different communication scenarios.
3Productivity
If direct communication between members and command posts is enabled, then communication efficiency improves, but security risks increase without proper encryption and authentication
Solution Approach 1:
The patent implements preliminary authentication and key exchange between portable devices and command posts before establishing direct communication channels. Devices automatically authenticate each other and establish encrypted communication sessions in advance, ensuring security is established before any data transmission occurs, thus preventing unauthorized access while maintaining efficient direct communication.
Solution Approach 2:
The patent uses encryption algorithms and authentication protocols as intermediaries to secure direct communication between members and command posts. These cryptographic intermediaries protect the direct communication channel from eavesdropping and unauthorized access, allowing efficient direct communication while mitigating security risks through layered cryptographic protection.
Data Source
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AI summary
A wireless relay device and a method of processing data using the same are disclosed. The wireless relay device includes a voice input/output (I/O) unit, a voice processing unit, an information protection processing unit, a Wi-Fi unit, and a radio transmission and reception unit. The voice I/O unit receives or outputs a user voice signal. The voice processing unit performs voice processing on the user voice signal. The information protection processing unit encrypts or decrypts voice data using an information protection algorithm. The Wi-Fi unit sends the encrypted voice data to a portable device of a user located within a set range, or receives encrypted voice data from a portable device of a user located within the set range. The radio transmission and reception unit relays wireless communication to a portable device of a user located outside the set range.