Camera Mode Switching for Wireless Credential Transfer
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Solution Overview
Problem
Camera systems face challenges in detecting and connecting with wireless devices operating in different modes, particularly due to limitations in power efficiency and the need for manual credential entry, which is cumbersome with limited input interfaces.
Innovation Solution
The camera system automatically switches between access point, ad hoc, and station modes to detect and connect with devices, and uses a smart device to obtain and transfer wireless credentials wirelessly, optimizing power usage and simplifying the credential entry process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the camera operates in access point mode to connect with multiple devices, then connectivity versatility is improved, but power consumption increases
Solution Approach 1:
The camera dynamically switches between access point mode and station mode based on operational needs. The system transitions from a static mode configuration to a dynamic one where the communication mode adapts to the specific task at hand, reducing power consumption by avoiding continuous access point operation when not required.
Solution Approach 2:
The camera periodically cycles through different communication modes (access point, station, ad hoc) to detect devices and establish connections. This periodic mode switching allows the system to maintain versatility while minimizing the time spent in high-power access point mode, thereby reducing overall power consumption.
2Reliability
If the camera uses manual credential entry to connect to wireless networks, then connection security is improved, but ease of operation deteriorates due to limited input interfaces
Solution Approach 1:
A smart device acts as an intermediary between the camera and the wireless network credentials. The smart device stores credentials securely and transfers them to the camera through a controlled process, maintaining security while eliminating the need for manual credential entry on the camera's limited interface.
Solution Approach 2:
Credentials are prepared and stored in advance on the smart device before the camera needs to connect to the wireless network. This preliminary preparation of credentials allows the camera to receive pre-configured authentication information without requiring manual input, thus maintaining security while improving ease of operation.
3Use of energy by moving object
If the camera operates in station mode to conserve power, then power efficiency is improved, but adaptability to connect with different device modes deteriorates
Solution Approach 1:
The camera employs dynamic mode switching, transitioning between station mode (power-efficient) and access point/ad hoc modes (versatile) based on the specific connection requirements. This dynamic adaptation allows the system to maintain power efficiency as the default state while being able to switch to more versatile modes when needed for device detection and connection.
Solution Approach 2:
The camera system is designed to perform multiple communication functions by switching between different operational modes. The same hardware can function as a station for power-efficient operation, an access point for connecting to station-mode devices, or an ad hoc node for peer-to-peer communication, making the system universally adaptable to various device modes.
4Reliability
If multiple cameras require individual credential entry, then connection security is maintained, but productivity deteriorates due to repetitive manual input
Solution Approach 1:
The smart device serves as a centralized intermediary that manages credentials for multiple cameras. Instead of manually entering credentials at each camera, the process is centralized at the smart device which can then distribute credentials to multiple cameras efficiently, maintaining security through controlled credential distribution while dramatically improving setup productivity.
Solution Approach 2:
Credentials are prepared in advance at the smart device for multiple cameras before the actual connection process. This preliminary preparation allows batch configuration where multiple cameras can be set up with appropriate credentials simultaneously or in sequence without requiring repetitive manual input at each device, thus maintaining security while improving productivity.
Data Source
AI summary
A camera detects devices, such as other cameras, smart devices, and access points, with which the camera may communicate. The camera may alternate between operating as a wireless station and a wireless access point. The camera may connect to and receive credentials from a device for another device to which it is not connected. In one embodiment, the camera is configured to operate as a wireless access point, and is configured to receive credentials from a smart device operating as a wireless station. The camera may then transfer the credentials to additional cameras, each configured to operate as wireless stations. The camera and additional cameras may connect to a smart device directly or indirectly (for instance, through an access point), and the smart device may change the camera mode of the cameras. The initial modes of the cameras may be preserved and restored by the smart device upon disconnection.