Detachable Sensor Probe for Indoor 3D Mapping Robots
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Solution Overview
Problem
Existing robotic systems face challenges in obtaining efficient 3D environmental mapping without increasing complexity or risking safety, especially in indoor environments, due to the limitations of 2D observation and the impracticality of solutions like drones or extendible arms.
Innovation Solution
A robotic system equipped with a detachable probe containing sensors that can be ejected and retrieved to capture 3D environmental data by moving in three dimensions, using a detachable probe mechanism that includes a capturing arrangement and ejection mechanism to facilitate 3D mapping.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If 3D mapping is implemented using complex moving parts, then observation capability is improved, but device complexity increases
Solution Approach 1:
The system divides the observation function into two parts: a fixed base unit with 2D LIDAR for continuous monitoring, and a detachable probe with 3D LIDAR for detailed 3D mapping when needed. This segmentation allows 3D capability without permanently increasing system complexity.
Solution Approach 2:
The probe is designed to be detachably connectable to the base unit, with the probe containing its own 3D LIDAR sensor that nests within the overall system architecture. The probe can be attached when 3D mapping is required and detached when not needed, effectively nesting the complex 3D capability within the simpler base system.
2Measurement precision
If 3D mapping is implemented using complex moving parts, then observation capability is improved, but manufacturing cost increases
Solution Approach 1:
By segmenting the system into a standard base unit and a separate probe module, the complex 3D LIDAR functionality is isolated to a single manufacturable component. This allows specialized 3D mapping hardware to be produced separately and attached only when needed, rather than requiring all units to have complex moving parts built in.
Solution Approach 2:
The base unit is designed with a universal docking interface that can accommodate the probe for 3D mapping tasks, while the probe itself can potentially serve multiple functions. This universality allows the system to maintain simplicity for standard operations while enabling advanced capabilities when required.
3Measurement precision
If 3D mapping is implemented using complex moving parts, then observation capability is improved, but device displacement capability is limited
Solution Approach 1:
The system separates the mobile base unit from the 3D mapping probe. The lightweight probe can be easily attached and detached without affecting the base unit's mobility and displacement capabilities. This segmentation allows the main body to remain optimized for movement while the 3D capability is added only when needed.
4Device complexity
If 2D LIDAR is used for environment mapping, then device complexity is reduced, but observation capability is insufficient
Solution Approach 1:
The base unit continuously performs preliminary 2D mapping operations to maintain an updated environment model. When 3D observation is required, the pre-positioned probe can be quickly attached to enhance the mapping capability, building upon the existing 2D data foundation.
Solution Approach 2:
The detachable probe acts as an intermediary between the simple 2D LIDAR system and the requirement for 3D observation capability. It provides the additional dimensional data when needed while allowing the system to operate in its simpler 2D mode during normal operations.
Data Source
AI summary
A robot (20) includes a base (203, 204) and a detachable probe (205). The probe (205) includes at least one sensor of a least one type. Propulsion of the probe is provided by an ejection mechanism (204, 302) in the base. When the probe is ejected by the base, the probe captures data using its sensor(s) during its trajectory, according to an observation plan established by the base. The probe is recaptured by the base, probe data is transferred to the base, and the probe (205) is configured for a new observation.