Distance Measurement Apparatus Prioritizing Objects via Image Analysis
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Solution Overview
Problem
Conventional distance measurement systems for self-propelled vehicles inefficiently prioritize distance measurement among multiple objects in a scene, often illuminating areas without objects, which can lead to missed detection of critical objects, especially in dynamic environments.
Innovation Solution
A method that controls a distance measurement apparatus with a light emitting device capable of changing its emission direction and a light receiving device to prioritize distance measurement based on acquired image data, determining the degree of priority of physical objects and adjusting the light beam emission and detection accordingly, allowing for efficient measurement of high-risk or important objects.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the light beam is emitted to all areas in a scene sequentially, then the entire scene is covered for distance measurement, but the measurement time increases and critical objects may be missed
Solution Approach 1:
The system performs preliminary analysis on image data to identify candidate objects and determine measurement priority before executing distance measurement. This preliminary action allows the system to pre-plan the measurement sequence, ensuring critical objects are measured first while reducing overall measurement time.
Solution Approach 2:
The light emitting device dynamically changes its emission direction based on priority information of different objects. The system adapts the measurement sequence in real-time, directing the light beam to high-priority objects first, then proceeding to lower-priority objects, thereby optimizing both reliability and time efficiency.
2Measurement precision
If the light beam intensity is increased to improve detection of distant objects, then the detection capability is enhanced, but the energy consumption increases
Solution Approach 1:
The system applies different light beam intensities to different objects based on their priority and distance. High-priority or distant objects receive higher intensity illumination, while low-priority objects receive lower intensity, thereby optimizing detection capability while minimizing overall energy consumption.
Solution Approach 2:
The system uses excessive action (higher light intensity) only when necessary for detecting critical or distant objects, rather than applying maximum intensity to all objects. This partial application of excessive action ensures adequate detection capability for important targets while reducing unnecessary energy consumption.
3Area of stationary object
If multiple distance measurement apparatuses are deployed to cover distant objects, then the coverage is improved, but the device complexity increases
Solution Approach 1:
A single light emitting device dynamically adjusts its emission direction to cover different areas of the scene based on priority information. This dynamic repositioning of the light beam replaces the need for multiple fixed apparatuses, maintaining comprehensive coverage while reducing system complexity.
Solution Approach 2:
The single light emitting device performs multiple functions by sequentially targeting different objects and areas based on priority. It acts as a universal measurement tool that can focus on any priority object in the scene, replacing the need for specialized apparatuses for different zones.
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 efficient acquisition of distance information for critical objects, enhancing collision avoidance by prioritizing distance measurement of high-risk objects and optimizing resource allocation in dynamic environments.
Implementation Method 1
a light emitting device capable of changing a direction of emission of a light beam and a light receiving device that detects a reflected light beam produced by the emission of the light beam
Implementation Method 2
an image sensor that acquires an image of a scene to be subjected to distance measurement
Data Source
AI summary
A method for controlling a distance measurement apparatus including a light emitting device capable of changing a direction of emission of a light beam and a light receiving device that detects a reflected light beam includes acquiring data representing a plurality of images acquired at different points in time by an image sensor that acquires an image of a scene, determining, on the basis of the data representing the plurality of images, a degree of priority of distance measurement of one or more physical objects included in the plurality of images, and executing distance measurement of the one or more physical objects by causing the light emitting device to emit the light beam in a direction corresponding to the degree of priority and in an order corresponding to the degree of priority and causing the light receiving device to detect the reflected light beam.