Camera Multi-Accessory Communication Control
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Solution Overview
Problem
Existing camera systems face challenges in efficiently communicating with multiple accessory apparatuses, particularly in switching between communication methods and ensuring timely communication with a specific accessory apparatus.
Innovation Solution
The camera system employs a notification channel and a data communication channel to manage communication with multiple accessory apparatuses, allowing for simultaneous and individual communication. By determining communication parameters such as period, speed, packet number, and packet length based on accessory information, the system optimizes communication efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If communication switching between multiple accessory apparatuses is performed using conventional methods, then communication with a specific accessory apparatus can be established, but communication time increases and communication timing cannot be guaranteed
Solution Approach 1:
The notification channel is activated in advance to notify accessory apparatuses of upcoming communication periods before actual data transmission begins. This preliminary notification allows the camera and accessories to prepare for communication, eliminating the need for time-consuming communication method switching during operation.
Solution Approach 2:
The communication system is divided into two separate channels: a notification channel for timing synchronization and a data communication channel for actual data transfer. This segmentation allows each channel to be optimized for its specific function, with the notification channel handling timing coordination independently from data transmission.
2Adaptability or versatility
If communication with multiple accessory apparatuses is maintained simultaneously, then communication versatility is improved, but communication efficiency with specific apparatuses decreases
Solution Approach 1:
Communication with accessory apparatuses is organized into periodic communication periods, where the notification channel periodically announces upcoming communication windows. During these periods, the camera can efficiently communicate with specific accessories while other accessories remain in standby, achieving both multi-accessory support and high communication efficiency.
Solution Approach 2:
The communication system dynamically switches between broadcasting notification information to all accessories and establishing point-to-point data communication with specific accessories. This dynamic approach allows the system to maintain versatility while optimizing efficiency for active communication pairs.
Data Source
AI summary
A camera is operable while a plurality of accessory apparatuses are connected to the camera. The camera perform first communication for simultaneous communication with the plurality of accessory apparatuses using a data communication channel, and second communication for individual communication with a specific accessory apparatus among the plurality of accessory apparatuses using the data communication channel. In performing the second communication with the plurality of accessory apparatuses by switching between specific accessory apparatuses in a predetermined order within one or more communication periods, at least one of the communication period, a communication speed, a data packet number, a data packet length, and a combination and order of a communication source and a communication destination to be communicated for each communication period is determined based on accessory information acquired from the plurality of accessory apparatuses.