Wireless Relay IP Address Management via Server Mediation
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Solution Overview
Problem
In wireless remote control systems, the interruption and re-establishment of connections between the relay device and the access point can result in a change of IP address, leading to communication loss between the electronic device and the relay device, making it difficult for the electronic device to reconnect.
Innovation Solution
A connection method where the relay device sends its IP address to a server, which stores it, allowing the electronic device to inquire and obtain the IP address from the server, enabling it to reconnect even if it doesn't recognize the IP address initially, by sending connection request commands through the access point.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the relay device uses a dynamically assigned IP address from the access point, then the device can be easily connected to the network, but the IP address may change after connection interruption, causing loss of communication with the electronic device
Solution Approach 1:
The relay device performs preliminary action by proactively sending its IP address to the server before the connection is interrupted. This ensures that the server has the latest IP address stored, so when the electronic device needs to reconnect, it can obtain the current IP address from the server rather than relying on a potentially outdated locally stored address.
Solution Approach 2:
The server acts as an intermediary between the relay device and the electronic device. Instead of the electronic device directly maintaining connection information with the relay device, the server mediates by storing and providing the relay device's IP address to the electronic device upon request, thus solving the problem of IP address changes after connection interruptions.
2Speed
If the electronic device stores the relay device's IP address locally, then connection can be established quickly, but the stored IP address becomes invalid when the relay device reconnects with a new IP address
Solution Approach 1:
The system performs preliminary action by having the relay device send its IP address to the server in advance. When the electronic device needs to connect, it queries the server for the current IP address rather than using a potentially outdated locally stored address, ensuring both quick connection and reliability.
Solution Approach 2:
The system implements feedback by having the electronic device query the server for the relay device's IP address before attempting connection. This feedback loop ensures that the electronic device always obtains the current, valid IP address, preventing connection failures due to outdated IP information while maintaining connection speed.
3Reliability
If the relay device maintains a stable IP address, then communication reliability is improved, but the device cannot adapt to network reconfiguration when reconnecting to the access point
Solution Approach 1:
The server acts as an intermediary that decouples the need for stable IP addresses from communication reliability. The relay device can adapt to network reconfiguration by receiving new IP addresses from the access point, while the server ensures communication reliability by providing the current IP address to the electronic device, thus resolving the contradiction between stability and adaptability.
Solution Approach 2:
The relay device performs preliminary action by sending its current IP address to the server before connection interruption. This allows the device to adapt to network changes by obtaining new IP addresses upon reconnection, while the server maintains communication reliability by storing and providing the latest IP address information to the electronic device.
Data Source
AI summary
A connection method for a wireless system, wherein the wireless system includes an access point, an electronic device, a relay device and an appliance; the electronic device and the relay device are connected to the access point, respectively; the relay device is connected to the appliance via signals; the relay device is adapted to send control commands to the appliance. The connection method includes the following steps: connecting the relay device to a server through the access point; sending an IP address of the relay device assigned by the access point to the server; sending an inquiry command from the electronic device to the server; sending a connection request command to the received IP address; establishing a connection between the electronic device and the relay device when a connection-successful information is received. Thus, the risk that the electronic device connection could be disconnected is reduced.