Encoded Surface Positioning via 3D Radar Dielectric Detection
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Solution Overview
Problem
Existing systems fail to effectively read and decode information from encoded surfaces with protrusions or indentations of varying thickness or depth using a three-dimensional radar imaging system, particularly in scenarios where the reader must explore an area rather than just point in one direction.
Innovation Solution
The use of encoded surfaces with protrusions or indentations similar to the braille system, read by a three-dimensional radar imaging system, allows for the estimation of the camera's position and decoding of messages by detecting dielectric changes and encoding information through varying protrusion or indentation thickness, position, or a combination of both, using high-resolution radar sensors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If a three-dimensional radar imaging system is used to read encoded surfaces with protrusions or indentations, then the ability to decode information along a trajectory is improved, but the complexity of the system increases
Solution Approach 1:
The patent replaces mechanical reading systems with a three-dimensional radar imaging system that uses electromagnetic waves to detect dielectric changes in encoded surfaces. The radar system captures spatial information about protrusions and indentations without physical contact, enabling trajectory-based information decoding while reducing mechanical complexity
Solution Approach 2:
The invention changes the detection parameter from physical contact or optical reflection to dielectric property measurement. By detecting variations in dielectric constant caused by different materials or structures in the encoded surface, the system can identify protrusions and indentations along a movement trajectory, improving information decoding capability
2Measurement precision
If the reader examines multiple zones of the encoded surface through relative movement, then the decoding accuracy along the trajectory is improved, but the measurement time increases
Solution Approach 1:
The patent implements continuous scanning as the reader moves relative to the encoded surface. The three-dimensional radar imaging system continuously captures dielectric changes along the trajectory, converting the movement time into useful data collection rather than discrete sampling. This continuous action maintains high position estimation accuracy while minimizing additional time loss
Solution Approach 2:
The invention adds the time dimension to the spatial scanning process by utilizing the reader's movement along a trajectory. Instead of examining multiple zones sequentially in a static position, the system captures three-dimensional spatial information combined with temporal progression, enabling simultaneous position estimation and information decoding along the path
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
Enables accurate determination of absolute and relative positions, identification of encoded surfaces, and numeric control of objects, facilitating applications in vehicle guidance and object identification by decoding messages along the trajectory with high precision.
Implementation Method 1
The sensor is capable of decoding a message recorded along the trajectory followed by the image sensor by detecting dielectric changes
Implementation Method 2
the preferred form of the hollows being dihedrals since the planes of the dihedrals increase the reflected signal, therefore facilitating its detection
Data Source
AI summary
The invention relates to encoded surfaces that are read by a three-dimensional radar imaging system. The reader scans different zones in a pre-determined area of the encoded surface, each of said zones comprising projections or indentations, similar to Braille. The image obtained can be used to estimate the position of the camera relative to the known pattern. The relative movement between the reader and the encoded surface allows other areas of the surface to be scanned and, in this way, the sensor can decode a message etched along the path followed by the imaging sensor.