Staggered Sensor Data Authentication for Lower Streaming Latency
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Solution Overview
Problem
In safety-sensitive applications like autonomous driving, the authentication of large volumes of sensor data creates bottlenecks and increases latency due to concurrent processing of multiple frames, leading to inefficient data transfer.
Innovation Solution
Implementing a staggered authentication schedule that authenticates selected portions of frames generated by different sensors, spreading the authentication workload evenly across processing time to eliminate bottlenecks and reduce latency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If concurrent authentication of multiple sensor frames is performed, then authentication completeness is improved, but processing latency increases and system bottleneck occurs
Solution Approach 1:
The patent segments the authentication process by dividing sensor data into multiple authentication epochs, where not all sensors are authenticated simultaneously. Instead, sensors are grouped and authenticated in staggered batches across multiple epochs, reducing the concurrent processing load while maintaining complete authentication coverage over time.
Solution Approach 2:
The patent implements periodic authentication cycles where authentication occurs in repeated epochs. Each epoch processes a subset of sensors, and the process cycles through all sensors across multiple periods. This periodic approach distributes the authentication workload over time, eliminating bottlenecks while ensuring all data is eventually authenticated.
2Reliability
If all sensor data is authenticated simultaneously, then data security is improved, but processing efficiency deteriorates
Solution Approach 1:
The patent segments the authentication workload by organizing sensors into multiple groups that are authenticated in alternating epochs. This segmentation allows the system to maintain security by authenticating all sensor data while improving efficiency by processing smaller batches concurrently rather than all data simultaneously.
Solution Approach 2:
The patent applies partial action by authenticating only a subset of sensors in each epoch rather than all sensors simultaneously. This partial authentication approach maintains sufficient security for each time period while significantly improving processing efficiency, and the cumulative effect across multiple epochs achieves complete authentication.
3Loss of time
If authentication processes are staggered across multiple epochs, then processing latency is reduced, but authentication time distribution increases
Solution Approach 1:
The patent uses periodic authentication epochs to reduce latency by processing data in regular cycles. While the total authentication duration spans multiple periods, each individual epoch completes quickly with low latency, providing timely authentication for critical data while distributing the overall duration across manageable time segments.
Data Source
AI summary
Disclosed are apparatuses, systems, and techniques that implement efficient staggered authentication of sensor data in real-time streaming applications. In one embodiment, a processing device establishes an authentication schedule for a plurality of sensors and receives units of data from the sensors. The units of data are received over multiple times, with the processing device receiving, from respective sensors, a plurality of sub-units of data; selecting, using the authentication schedule, a number of one or more sub-units of data from the received sub-units of data; and performing an authentication of the one or more selected sub-units of data. The processing device determines authenticity of the units of data using the performed authentications of the sub-units of data.