Mobile Robot Base Station Switching Near Radio Shielding Objects
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Solution Overview
Problem
Autonomous mobile robots face challenges in maintaining radio connections when moving through areas with radio wave shielding objects, as existing systems fail to select an appropriate base station due to reduced radio wave intensity, leading to communication failures.
Innovation Solution
A control system that includes a radio communication unit and a connection control unit, which prompts the robot to connect to a predetermined base station whose radio wave intensity is affected by the shielding object, even when the robot is about to pass through it, thereby ensuring a stable connection by correcting and increasing the received radio wave intensity for comparison with other base stations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the autonomous mobile robot selects a base station based on received radio wave intensity, then the robot can maintain good connection quality, but when there is a radio wave shielding object on the moving path, the robot cannot connect to the appropriate base station whose radio waves are interfered with by the shielding object
Solution Approach 1:
The connection control unit performs preliminary identification of shielding objects on the robot's moving path and pre-determines which base stations should be selected as connection destinations, even before the robot reaches positions where radio wave intensity would normally indicate poor connection. This allows the robot to maintain reliable connections by switching to appropriate base stations in advance, rather than waiting for radio wave intensity to drop and then failing to find a suitable alternative.
2Duration of action of stationary object
If the robot connects to a base station with low received radio wave intensity due to shielding objects, then continuous connectivity can be maintained, but conventional systems reject such base stations resulting in communication failures
Solution Approach 1:
The system changes the selection parameter for base stations from solely relying on received radio wave intensity to incorporating shielding object detection results. When a shielding object is detected on the moving path, the connection control unit identifies base stations that will be affected by the shielding object and prioritizes connection to these stations, even if their current received radio wave intensity is low. This parameter change allows the system to maintain continuous connectivity through base stations that conventional systems would reject.
3Device complexity
If the robot uses radio wave intensity as the sole criterion for base station selection, then simple selection logic is maintained, but the robot fails to select appropriate base stations when shielding objects are present on the moving path
Solution Approach 1:
The connection control unit acts as an intermediary between the radio communication unit and the base station selection process. It receives information about shielding objects from the autonomous mobile robot's environment recognition capabilities and uses this information to mediate the base station selection, determining which base stations should be selected even when their radio wave intensity is reduced by shielding objects. This intermediary function adds reliability to the selection process without requiring complete redesign of the selection logic.
Data Source
AI summary
The control system is a control system that controls a connection between an autonomous mobile robot and a base station, the control system including: a radio communication unit that communicates with the base station; and a connection control unit that performs control, in a connection of communication performed by the radio communication unit, when a radio wave shielding object which the autonomous mobile robot is able to pass through is on a path along which the autonomous mobile robot is to move, so that the autonomous mobile robot is prompted to connect to a predetermined base station of which a received radio wave intensity at a position on the path in front of the shielding object is affected by the shielding object.