Turning Center Calculation From Position, Velocity, and Attitude
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing technologies for preventing collisions of movable bodies like ships are insufficient in providing accurate data during turning maneuvers, as they lack sufficient estimation data for the state of the body during this phase.
Innovation Solution
A movement information calculating device equipped with positioning, velocity, and attitude sensors, along with processing circuitry, calculates the center-of-gravity position and velocity, and determines the turning center or pivoting position using these parameters, thereby enhancing data availability during turning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional collision prevention devices measure velocity, direction, and turning angular velocity to calculate movement tracks, then basic movement information can be obtained, but the data is insufficient for accurate estimation during turning maneuvers
Solution Approach 1:
The patent introduces a turning center position calculating unit as an intermediary component that processes existing sensor data (position, velocity, attitude) to derive additional turning state information. This intermediary calculation unit computes the turning center position by combining measurements from the positioning sensor, velocity sensor, and attitude sensor, thereby filling the information gap without requiring direct additional sensors for turning measurement.
Solution Approach 2:
The system uses its own existing sensors (positioning sensor, velocity sensor, attitude sensor) to calculate turning state information that would otherwise be missing. By processing its own measurement data through the turning center position calculating unit, the system self-generates the required turning state information, eliminating the need for external or additional specialized sensors.
2Measurement precision
If additional sensors are added to capture turning state data, then measurement precision improves, but device complexity increases
Solution Approach 1:
The patent makes the existing positioning sensor, velocity sensor, and attitude sensor serve multiple functions. These sensors not only provide basic movement information but also contribute to calculating turning state parameters through the turning center position calculating unit. This multi-functional use of existing sensors eliminates the need for additional specialized sensors, maintaining device simplicity while improving measurement precision.
Solution Approach 2:
The patent merges the calculation of turning state information with the existing movement track calculation functions. The turning center position calculating unit integrates data from the positioning sensor, velocity sensor, and attitude sensor in a unified processing framework, combining multiple measurement functions into a single coherent system that derives both basic movement parameters and turning state parameters without requiring separate dedicated hardware for each function.
Data Source
AI summary
A movement information calculating device includes a positioning sensor, a velocity sensor, an attitude sensor and processing circuitry. The positioning sensor is configured to calculate a position of the positioning sensor on a movable body. The velocity sensor is configured to calculate a velocity of the movable body. The attitude sensor is configured to calculate an attitude of the movable body. The processing circuitry is configured to calculate a center-of-gravity position and a center-of-gravity velocity of the movable body by using the position, the velocity, and the attitude, and calculate one of a turning center position and a pivoting position of the movable body by using the center-of-gravity position and the center-of-gravity velocity.