Pan Tilt Camera Initial Positioning via Motor Rotation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing camera systems with pan and tilt mechanisms struggle to quickly transition to automatic tracking mode without performing unnecessary pan and tilt operations, especially when resetting, and face recognition for tracking is uncertain and requires pre-registered face data, leading to inefficiencies.
Innovation Solution
A method for setting the initial position of a camera with a pan and tilt mechanism that involves rotating motors to preset positions, detecting subjects during movement, and adjusting the mechanism based on detection results to automatically track the subject, thereby omitting unnecessary operations and enabling rapid transition to automatic tracking.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the camera performs reset operation by rotating pan and tilt motors to home position, then the camera returns to a known initial state, but the camera performs useless pan and tilt operations and takes excessive time to transition to automatic tracking mode
Solution Approach 1:
The camera performs subject detection during the motor rotation process before reaching the home position, rather than waiting for the reset to complete. This preliminary detection action during the movement phase eliminates the need for separate tracking initialization steps, reducing overall transition time while ensuring reliable subject acquisition for automatic tracking mode
2Extent of automation
If the camera uses face recognition for subject detection, then automatic tracking can be initiated, but face data must be registered in advance which is troublesome and reduces ease of operation
Solution Approach 1:
The camera system performs self-service by automatically acquiring subject information during the motor rotation process without requiring external face data registration. The subject detection unit detects subjects directly from the captured images during movement, and the control unit uses this detected information to initialize tracking parameters, making the system self-sufficient and eliminating the need for troublesome pre-registration of face data
3Productivity
If the camera detects subject during motor rotation, then unnecessary pan and tilt operations are omitted and tracking transition is accelerated, but subject detection must be performed during movement which increases detection complexity
Solution Approach 1:
The subject detection process continues uninterrupted during the entire motor rotation from current position to home position. Rather than stopping detection or requiring the camera to be stationary, the system maintains continuous subject detection throughout the movement, ensuring that subject information is acquired without interruption and enabling seamless transition to tracking mode without additional operational steps
Data Source
AI summary
In one aspect of the present invention, when reset of a camera is received, a pan motor and a tilt motor of a pan and tilt mechanism are rotated in a first preset rotation direction, and the pan and tilt mechanism is first moved to a pan reference position and a tilt reference position. Thereafter, the pan motor and the tilt motor are rotated in a second rotation direction opposite to the first rotation direction, and the pan and tilt mechanism is moved to an initial pan position and an initial tilt position. Using a movement of the pan and tilt mechanism to initial pan and tilt positions, detection of a subject for automatic tracking is performed, and if the subject is detected, then transition to an automatic tracking state is caused to occur.