Sensor Management Device Synchronization via Staggered Acquisition
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Solution Overview
Problem
In time division communication systems between sensor management devices and wireless sensors, the lack of synchronization among sensor information received from multiple sensors leads to inconsistencies, particularly when attached to robots, making accurate analysis and coordination of operations challenging.
Innovation Solution
A sensor management device that transmits acquisition start instructions to wireless sensors at different timings and extracts common period sensor information by referencing the deviations in transmission times, or sets delay times to synchronize data acquisition across sensors, ensuring all sensors acquire data within a common period.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If sensor management device communicates with multiple wireless sensors in time division manner, then device complexity is reduced and ease of operation is improved, but sensor information synchronization is lost
Solution Approach 1:
The sensor management device transmits acquisition start instructions to multiple wireless sensors at different timings in advance, and records the transmission timings. This preliminary action allows the device to later extract sensor information corresponding to the same acquisition period by referencing these recorded timings, thereby maintaining synchronization without requiring complex coordinated communication protocols.
Solution Approach 2:
The patent introduces transmission timing information as an intermediary element between the sensor management device and wireless sensors. By recording and referencing the timings at which acquisition start instructions were transmitted, the device can identify and extract sensor information that corresponds to the same acquisition period, effectively using timing information as a mediator to achieve synchronization in a time division communication system.
2Productivity
If wireless sensors acquire sensor information at different timings, then communication efficiency is improved, but data consistency for analysis is degraded
Solution Approach 1:
The sensor management device performs preliminary transmission of acquisition start instructions to multiple wireless sensors at optimally staggered timings, recording each transmission time. This allows efficient parallel communication while enabling later identification of corresponding sensor information through the recorded timing data, maintaining both communication efficiency and data consistency.
Solution Approach 2:
The system implements a feedback mechanism where the sensor management device records the transmission timings of acquisition start instructions and uses this timing information to identify and extract corresponding sensor information. This feedback loop ensures that even though sensors acquire data at different timings for efficiency, the management device can reconstruct synchronized data sets for consistent analysis.
3Loss of energy
If sensor acquisition timings are staggered across multiple sensors, then communication overhead is reduced, but time synchronization accuracy is lost
Solution Approach 1:
The sensor management device performs preliminary transmission of acquisition start instructions to multiple wireless sensors at different timings, recording each transmission timing. This preliminary action reduces communication overhead by avoiding repeated synchronization commands, while the recorded timings enable accurate identification of corresponding sensor information, effectively compensating for the staggered acquisition times.
Solution Approach 2:
The patent uses transmission timing information as an intermediary to bridge the gap between staggered sensor acquisition and synchronized data analysis. By recording when each acquisition start instruction was transmitted, the device can accurately match sensor information to its corresponding acquisition period, using timing data as a mediator to recover synchronization accuracy without increasing communication overhead.
Data Source
AI summary
Provided is a technology that enables a plurality of sensor information to be synchronized for a technology of a sensor management device communicating with a plurality of wireless sensors in a time division manner. A sensor management device includes a transmission unit that transmits acquisition start instructions for starting acquisitions of sensor information to a plurality of wireless sensors respectively at different timings; and an extraction unit that extracts a plurality of common period sensor information that the plurality of wireless sensors have acquired in the common period from the plurality of sensor information with reference to deviation of times at which the transmission unit has transmitted the acquisition start instructions to the plurality of wireless sensors.