Distance Measurement Apparatus with Block Time Tagging
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Solution Overview
Problem
Existing distance measurement systems face challenges in accurately integrating depth map or point cloud data from multiple sources due to discrepancies in time information, leading to potential inaccuracies in position information and difficulties in combining data from different sensors.
Innovation Solution
A distance measurement apparatus that emits multiple light beams in different directions and at varying timings, using an array of light-receiving elements to detect reflected light and a signal processing circuit to generate output data with precise time information attached to each block of measurement data, allowing for accurate integration and alignment of data from multiple sources.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If depth map or point cloud data is integrated from multiple sources, then the coverage and completeness of measurement data is improved, but the accuracy of position information deteriorates due to time information discrepancies
Solution Approach 1:
The patent segments the measurement data into blocks, where each block contains measurement data from multiple sources that were captured at the same time. This segmentation allows for precise temporal alignment while maintaining the quantity of data, as each block can be independently processed and associated with specific time information.
Solution Approach 2:
The patent attaches time information to each block of measurement data before integration. This preliminary action of tagging time information allows subsequent accurate integration and alignment of data from multiple sources without compromising position information accuracy.
2Adaptability or versatility
If data from multiple sensors is combined, then the comprehensiveness of measurement is improved, but the complexity of data processing increases
Solution Approach 1:
By dividing the combined data into blocks with attached time information, the patent simplifies the processing complexity. Each block can be processed independently using standardized procedures, making the integration of multi-sensor data more manageable while maintaining comprehensiveness.
Solution Approach 2:
The patent introduces time information as a key parameter for organizing and processing data blocks. This parameter change enables systematic handling of multi-sensor data, reducing processing complexity through standardized temporal alignment procedures.
3Measurement precision
If time information is attached to each block of measurement data, then the accuracy of data integration is improved, but the amount of data storage required increases
Solution Approach 1:
Instead of attaching time information to every individual data point, the patent attaches it to blocks of measurement data. This partial action reduces the total amount of storage required while still maintaining the accuracy needed for proper data integration and alignment.
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 approach enables precise integration of data from multiple sensors, providing accurate three-dimensional point cloud data with precise time information, enhancing the accuracy of position and movement analysis, particularly in traffic monitoring and accident investigation.
Implementation Method 1
a light emitter that emits a plurality of light beams toward a scene in different directions and at different timings, a light receiver that includes an array of a plurality of light-receiving elements and detects reflected light from the scene produced by the emission of each light beam
Data Source
AI summary
A distance measurement apparatus comprises a light emitter that emits a plurality of light beams toward a scene in different directions and at different timings, a light receiver that includes an array of a plurality of light-receiving elements and detects reflected light from the scene produced by the emission of each light beam with the plurality of light-receiving elements, and a signal processing circuit that generates and outputs output data including measurement data indicating the positions or distances of a plurality of points in the scene on the basis of a signal outputted by the light receiver. The output data includes the data of a plurality of blocks, and individual time data is attached to each of the plurality of blocks.