3D Reflected Wave Measuring Device Orientation Correction
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Solution Overview
Problem
3D reflected wave measuring devices often suffer from incorrect height determinations due to misalignment with the expected frame of reference in their environment, leading to inaccurate measurements.
Innovation Solution
The integration of an orientation sensor allows the 3D reflected wave measuring device to be correctly aligned with the environmental frame of reference, ensuring accurate measurement of 3D reflected wave data points.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the 3D reflected wave measuring device is installed in an arbitrary orientation, then the device complexity is reduced and installation is easier, but the measurement precision of height determinations deteriorates
Solution Approach 1:
The patent replaces mechanical alignment procedures with an electronic orientation sensor system. The orientation sensor electronically determines the device's angular orientation and provides data to the processor, which then mathematically corrects the reflected wave measurements. This substitution eliminates the need for physical alignment while maintaining measurement precision.
Solution Approach 2:
The patent implements a feedback mechanism where the orientation sensor continuously monitors the device's angular orientation and feeds this information back to the processor. The processor uses this feedback to dynamically adjust and correct the height determinations, ensuring accurate measurements regardless of the device's installation orientation.
2Device complexity
If the device uses a fixed coordinate system without orientation correction, then the device complexity is lower, but the measurement precision deteriorates when the device is not aligned with the environmental frame of reference
Solution Approach 1:
The patent transforms the fixed coordinate system into a dynamic one that adapts to the device's actual orientation. The orientation sensor provides real-time angular data, allowing the processor to dynamically rotate and transform the coordinate system to match the environmental frame of reference, ensuring accurate 3D coordinate measurements.
Solution Approach 2:
The patent changes the parameters of the coordinate system based on orientation sensor data. The processor modifies the angular parameters of the coordinate system to correspond to the device's actual orientation, thereby correcting measurement errors and maintaining precision without increasing fundamental system complexity.
3Device complexity
If no orientation sensor is integrated, then the device complexity and manufacturing cost are reduced, but the reliability of height metric calculations deteriorates
Solution Approach 1:
The patent makes the orientation sensor multi-functional by using it for multiple purposes: determining device orientation, correcting measurement errors, and validating height metric calculations. This multi-functionality justifies the added complexity by providing reliable height metrics through comprehensive orientation awareness.
Solution Approach 2:
The orientation sensor acts as an intermediary between the reflected wave measuring device and the environmental frame of reference. It mediates the relationship by providing orientation data that enables the processor to accurately translate device measurements into environmentally relevant coordinates, ensuring calculation reliability.
Data Source
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AI summary
A device (102) for measuring 3D coordinates associated with an object in an environment (100), comprising: a 3D reflected wave measuring device (206) having a 3D coordinate system for measuring 3D coordinates of an object (106) in the environment (100), the 3D reflected wave measuring device (206) having a first frame of reference; and an orientation sensing device (210) to indicate an orientation of the 3D reflected wave measuring device (206) in an environment for aligning the first frame of reference with a second frame of reference that is associated with the environment (100). The device may be a fall detector device, although other applications are possible.