Home Gateway Signal Isolation via Ethernet Frame Policy
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Solution Overview
Problem
Current home gateways face challenges in managing complex networks of household devices, security risks from external access, and signal interference between Internet and appliance control signals, leading to operational complexity and potential errors.
Innovation Solution
A home gateway device employing a prearranged frame processing policy and port control forwarding policy to isolate Ethernet signals for computer networking from those used by intelligent household appliances, utilizing a main processor, USB signal Ethernet adapter, Ethernet frame process unit, and outer communication module for address translation and data transfer, ensuring secure and efficient control and management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a home gateway directly controls specific household devices through exterior communication networks, then household appliance control functionality is achieved, but operational complexity and manufacturing cost increase when there are relatively greater number of devices
Solution Approach 1:
The patent introduces an intermediary control scheme where the home gateway does not directly control each household device individually. Instead, it establishes a standardized interface layer that mediates between exterior communication networks and interior household devices. This intermediary layer abstracts the complexity of device control, allowing the gateway to manage multiple devices through unified protocols rather than individual direct control connections, thereby reducing operational complexity and manufacturing costs while maintaining versatility.
2Adaptability or versatility
If a home gateway allows both Internet access signals and control signals of intelligent household appliances to enter, then comprehensive service functionality is achieved, but security risks arise from illegal users outside using the Internet to control interior devices
Solution Approach 1:
The patent applies segmentation by separating the home gateway's functionality into distinct modules: an Internet access module and a household device control module. This segmentation allows the gateway to handle Internet traffic and appliance control traffic through different processing paths. By dividing the system into separate functional segments, the patent enables selective access control where Internet users can access network services but cannot directly control household appliances, thus maintaining comprehensive service functionality while eliminating security risks from external access.
3Device complexity
If a home gateway does not effectively distinguish between Internet access signals and household appliance control signals, then signal processing simplicity is maintained, but Internet access interruption or errors in control information occur
Solution Approach 1:
The patent implements local quality by assigning different processing characteristics to different signal types within the gateway. Internet access signals are routed through one processing path optimized for data transmission, while household appliance control signals are routed through another path optimized for command execution. This localized differentiation in signal processing ensures that each type of signal receives appropriate handling, preventing Internet access interruptions and control information errors while maintaining overall system simplicity through standardized routing rules.
Data Source
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AI summary
The present invention relates to a home gateway device. The home gateway device comprises a main processor (1) for generating information process signals and control signals, a computer bus signal Ethernet adapter unit (2) connected with the main processor (1) for translating the signals between computer bus signals and Ethernet signals, an Ethernet frame process unit (4) connected with the computer bus signal Ethernet adapter unit (2) for forwarding the received Ethernet frame based on a prearranged policy, an inner interface unit (5) connected with the Ethernet frame process unit (4) for connecting interior networking devices, and an outer communication module (3) connected with the main processor (1) and the Ethernet frame process unit (4). The centralized control of the home gateway device of the present invention can decrease the requirement that the household appliances should be intellectualized, thereby achieving the control more flexible and reducing the cost. The uplink and downlink Ethernet signals are controlled by means of the prearranged policy to separate the Ethernet signals for networking from the Ethernet signals of the information household appliances, and avoid the threat caused by the unsafe factor.