Lens Control Device Wireless Signal Verification
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Solution Overview
Problem
Current photographic equipment faces challenges in precise lens control due to communication signal interference between lens control devices and lens drivers, leading to inaccurate zooming and focusing adjustments.
Innovation Solution
A control method that detects changes in position data of adjusting members, generates adjustment signals with matching identifications, and wirelessly transmits these signals to lens drivers for verification, ensuring accurate and interference-free control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple lens control devices are configured to separately control each lens driver using different communication channels, then each lens driver can be controlled independently, but communication signals from other equipment easily cause interference and affect precise lens control
Solution Approach 1:
The patent implements a feedback mechanism where the lens driver receives control signals from the lens control device, executes the control commands, and feeds back execution status and position information to the lens control device. This closed-loop feedback system enables real-time monitoring and adjustment, ensuring accurate lens control while maintaining independent control capability across multiple devices.
Solution Approach 2:
The patent introduces an intermediary identification code mechanism that acts as a mediator between the lens control device and lens driver. Each control signal includes a unique identification code that matches between the controlling device and the targeted lens driver, preventing interference from other equipment while maintaining independent control. This intermediary verification system resolves the contradiction by enabling reliable device-specific control without requiring isolated communication channels.
2Ease of operation
If wireless communication is used between lens control device and lens driver, then installation flexibility is improved, but communication signals are more susceptible to interference
Solution Approach 1:
The patent uses an intermediary identification code embedded in wireless control signals as a mediator to distinguish legitimate signals from interference. The lens driver verifies the identification code in each received wireless signal against its own unique code, accepting only matched signals and rejecting others. This intermediary verification mechanism maintains installation flexibility of wireless communication while effectively filtering out interference from other equipment.
Solution Approach 2:
The patent changes the parameter of signal content by incorporating unique identification codes and verification data into the wireless communication protocol. This parameter enhancement transforms simple wireless signals into verified, device-specific commands, allowing the system to maintain wireless installation flexibility while achieving interference resistance through encoded signal parameters.
Data Source
AI summary
The present invention discloses a lens control device and a control method thereof, a lens driver and a control method thereof, and a follow focus control system. The lens control device includes adjusting members. The control method of the lens control device includes: upon detecting a change of position data of any one adjusting member, acquiring current position data of the adjusting member and a matching identification corresponding to the adjusting member; and generating and wirelessly transmitting an adjustment signal based on the acquired position data and the matching identification, the adjustment signal containing the matching identification, the matching identification being provided for a lens driver that receives the adjustment signal to perform a match verification. The technical solution of the present invention effectively prevents the communication signals between the lens control device and the lens driver from being interfered with and improving control accuracy of the lens.