Pan-Tilt Camera Sensor Control for Collision Prevention
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing control systems for pan/tilt cameras fail to efficiently manage the energization of position detection sensors, leading to unnecessary wear and potential collisions due to continuous energization, especially when the camera is not actively rotating or when manually moved.
Innovation Solution
A control apparatus that includes a rotation detection unit to determine the rotation direction of a rotating body, with a position detection unit energized only when the camera is actively rotating in a specific direction, and de-energized otherwise, reducing unnecessary energization and preventing collisions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the position detection sensor is continuously energized to ensure accurate positioning, then the positioning accuracy is maintained, but the sensor deteriorates faster and collisions may occur
Solution Approach 1:
The patent applies periodic action by controlling the position detection sensor to be energized only during specific periods when the rotating body is rotating in the first direction (approaching direction), rather than continuous energization. The control unit activates the sensor based on rotation detection, maintaining positioning accuracy during critical operations while reducing overall sensor usage time and preventing deterioration.
2Reliability
If the position detection sensor is continuously energized to prevent collisions, then collision prevention is ensured, but unnecessary energy is consumed and sensor wear increases
Solution Approach 1:
The system implements periodic action by energizing the position detection sensor only during specific operational phases when the rotating body rotates in the first direction. The control unit receives rotation detection signals and activates the sensor accordingly, ensuring collision prevention is maintained during approaching operations while eliminating unnecessary energy consumption during non-critical periods.
Solution Approach 2:
The patent applies dynamics by making the sensor energization state dynamic rather than static. The control unit continuously monitors rotation detection signals and adjusts the sensor's energization state in real-time based on the current rotation direction and operational requirements, optimizing both collision prevention and energy efficiency.
3Measurement precision
If the position detection sensor is energized during manual movement, then positioning accuracy is maintained, but sensor deterioration accelerates
Solution Approach 1:
The patent applies periodic action by selectively energizing the position detection sensor only during automated rotation operations in the first direction, while keeping it de-energized during manual movement operations. The control unit distinguishes between automated and manual operations through rotation detection signals, maintaining positioning accuracy when needed while preventing unnecessary sensor wear during manual handling.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This solution reduces sensor deterioration and prevents collisions by controlling the energization of position detection sensors based on the camera's rotation state, ensuring accurate positioning and extending sensor lifespan.
Implementation Method 1
a rotation detection unit configured to detect rotation of a rotating body, a determination unit configured to determine a rotation direction of the rotating body based on an output of the rotation detection unit
Implementation Method 2
a position detection unit configured to detect a predetermined position of the rotating body based on positions of a first member provided on the rotating body and a second member provided on a fixed section that moves relative to the rotating body
Data Source
AI summary
An apparatus includes a rotation detection unit, a direction determination unit, a position detection unit, and a control unit configured to perform control such that the position detection unit is energized in a case where the rotation direction determined by the direction determination unit is a first direction where the first member and the second member approach each other, and that the position detection unit is not energized in a case where the rotation direction determined by the direction determination unit is a second direction where the first member and the second member separate from each other.