Multi-Sensor Data Synchronization With Selective Transfer Filtering
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Solution Overview
Problem
In hybrid sensors combining image sensors and event-based vision sensors (EVS) or time of flight (ToF) sensors, not all data acquired by each sensor is necessarily required in subsequent processing circuits, leading to inefficient data transfer.
Innovation Solution
An information processing device that synchronizes and transmits data from multiple sensors, selectively handling and discarding unnecessary data to optimize transfer efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If all data from multiple sensors is transferred to the processing circuit, then data completeness is maintained, but transfer efficiency is reduced due to useless data transfer
Solution Approach 1:
The patent applies preliminary action by performing data filtering and selection at the sensor output stage before data transfer to the processing circuit. The first sensor outputs first data and the second sensor outputs second data, and the system preliminarily determines which data is useful based on sensor type and processing requirements, thereby preventing useless data transfer while maintaining necessary information completeness.
2Loss of information
If data from multiple sensors with different reference signals is collected, then comprehensive information is obtained, but synchronization complexity increases
Solution Approach 1:
The patent uses a reference signal as an intermediary to synchronize data from multiple sensors with different reference signals. The first data from the first sensor and second data from the second sensor are both synchronized to a common reference signal before being combined and output as third data, thereby maintaining information completeness while managing synchronization complexity through a mediating synchronization mechanism.
Data Source
AI summary
An information processing device includes a first reception unit that receives first data generated by a first sensor in synchronization with a first reference signal and second data generated by a second sensor, and a transmission unit that transmits the first data and at least part of the second data as third data synchronized with a second reference signal.