Mobile Follow Mode Using External Motion Data for Perception Loss
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Solution Overview
Problem
Mobile devices often experience perception issues that impair their ability to autonomously navigate, leading to suboptimal motion planning and potential safety concerns, as they may struggle with sensor data capture, localization, and object recognition.
Innovation Solution
A system where a first mobile device can initiate a 'follow mode' with a second mobile device in its vicinity, receiving external motion data to generate a motion plan and autonomously move along a designated travel path, thereby addressing perception issues and ensuring safe navigation to destinations like maintenance or parking locations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the first mobile device uses its own sensor system and perception system for autonomous navigation, then it maintains operational independence, but it experiences perception issues that impair motion planning and navigation safety
Solution Approach 1:
The patent introduces a second mobile device as an intermediary that provides external motion data to the first mobile device. This mediator device captures sensor data and generates motion planning information that the first device uses to overcome its own perception limitations, thereby improving navigation safety without requiring the first device to have perfect sensing capabilities
Solution Approach 2:
The patent merges the sensing and motion planning capabilities of the second mobile device with the navigation needs of the first mobile device. By combining the sensor system of the second device with the motion planner of the first device, the system achieves more reliable perception and motion planning than either device could achieve independently
2Reliability
If the first mobile device initiates follow mode with a second mobile device, then it resolves perception issues by using external motion data, but it increases system complexity and dependency on external devices
Solution Approach 1:
The patent implements a dynamic follow mode that can be activated and deactivated based on the first mobile device's perception needs. The system dynamically switches between independent operation and cooperative operation with the second device, allowing flexibility in managing system complexity while maintaining perception accuracy when needed
Solution Approach 2:
The system uses feedback from the first mobile device's perception system to determine when to initiate follow mode. When perception issues are detected, the system requests external motion data from the second device, creating a feedback loop that adjusts system behavior based on actual perception quality
3Reliability
If the first mobile device autonomously moves using external motion data from the second mobile device, then it achieves safe navigation to destination, but it requires continuous communication and coordination between devices
Solution Approach 1:
The patent performs preliminary action by having the second mobile device capture sensor data and generate motion planning information in advance. This pre-computed motion data is then transmitted to the first device, reducing the need for continuous real-time communication during execution and lowering operational complexity
Data Source
AI summary
In one implementation, a communication is received at a first mobile device (102) from a second mobile device (104). The first mobile (102) device is experiencing a perception issue. A follow mode is initiated in response to receipt of the communication from the second mobile device (104) at the first mobile device (102). The follow mode corresponds to a travel path from a current geographical location of the first mobile device to a destination location. External motion data is received from the second mobile device at the first mobile device in connection with the follow mode. The external motion data is obtained by the second mobile device (104) as the second mobile device moves along the travel path. The first mobile device (102) moves along the travel path (106) by generating a motion plan using the external motion data.