Wireless Network Camera AP-STA Mode Switching
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Solution Overview
Problem
Network cameras operating as access points (AP) fail to reconnect with terminals when they cannot join a wireless network created by another AP, leading to communication disruptions and loss of connection destination information.
Innovation Solution
A communication apparatus that creates a first wireless network, receives connection destination information, attempts to join a second wireless network, and re-creates the first network upon failure, notifying the other apparatus of the failure to maintain connectivity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the network camera switches from AP mode to STA mode to join another wireless network, then it can connect to the second network, but it loses the ability to communicate with the terminal operating as STA
Solution Approach 1:
The network camera dynamically switches between AP mode and STA mode based on operational requirements. It creates a first wireless network in AP mode to receive connection information from the terminal, then switches to STA mode to join a second wireless network, and can switch back to AP mode to re-establish communication with the terminal if needed.
Solution Approach 2:
The first wireless network created by the network camera in AP mode serves as an intermediary communication channel between the terminal and the network camera when joining the second wireless network. This intermediary network allows the terminal to transmit connection destination information to the network camera.
2Adaptability or versatility
If the network camera ends the first wireless network to join the second network, then it can connect to the second network, but it cannot re-connect with the terminal if the join attempt fails
Solution Approach 1:
The network camera performs preliminary actions by creating the first wireless network in AP mode before attempting to join the second wireless network. This preliminary network setup allows the terminal to provide connection information. If the join attempt fails, the camera can switch back to AP mode and re-create the first network to re-establish communication with the terminal.
Solution Approach 2:
The system implements feedback mechanisms where the network camera monitors the success or failure of joining the second wireless network. Based on this feedback, it automatically switches between AP mode and STA mode to maintain communication capability with the terminal, ensuring that connection issues can be detected and addressed.
3Reliability
If the network camera operates continuously as STA to join the second network, then it maintains connection to the second network, but it cannot receive new connection information from the terminal
Solution Approach 1:
The network camera periodically switches between AP mode and STA mode to fulfill different functional requirements. In AP mode, it can receive connection information from the terminal; in STA mode, it can join and maintain connection to the second wireless network. This periodic switching allows both functions to be performed at appropriate intervals.
Data Source
AI summary
If a communication apparatus receives connection destination information for joining a second wireless network via a first wireless network created by the communication apparatus, the communication apparatus ends the first wireless network and attempts to join the second wireless network based on the received connection destination information. If the attempt to join the second wireless network fails, the communication apparatus re-creates the first wireless network.