Data Access Device Selective Sensor Retrieval
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Solution Overview
Problem
Portable devices with sensors face challenges in minimizing power consumption due to the need to access and process a large amount of data from various sensors, which can lead to increased power usage.
Innovation Solution
A data access device that stores a list of required data and retrieves only the necessary data from sensors based on this list, reducing unnecessary data transmission and power consumption by using a processor to determine which data to retrieve from an external source.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If all data from sensors is retrieved and processed, then complete information is available, but power consumption increases
Solution Approach 1:
The patent extracts only the necessary data from the sensor data stream based on an access list. Instead of retrieving all sensor data, the system selectively extracts only those data items that are currently needed by applications, thereby reducing power consumption while maintaining data completeness for required parameters.
Solution Approach 2:
The system performs partial data retrieval by accessing only a portion of the available sensor data rather than all data. The access list mechanism enables selective retrieval of specific data items, implementing partial action that balances information needs with power consumption constraints.
2Use of energy by moving object
If selective data retrieval is implemented, then power consumption is reduced, but data access complexity increases
Solution Approach 1:
The system performs preliminary action by pre-defining access lists that specify which sensor data items are needed. These access lists are prepared in advance and stored for efficient reference during data retrieval operations, reducing the complexity of real-time data access decisions.
Solution Approach 2:
The access list acts as an intermediary between the sensor data source and the application data consumer. This intermediate structure simplifies the data access mechanism by providing a clear mapping between required data items and their sources, reducing overall system complexity despite selective retrieval requirements.
Data Source
AI summary
Provided are a data access device which may retrieve at least a portion of a plurality of pieces of data from a module providing the pieces of data and an apparatus including the same. The data access device may include a data list storage configured to store a portion of a plurality of pieces of data generated by at least one sensor as an access list of data to be retrieved; and a processor configured to retrieve the portion of a plurality of pieces of data from an external source, based on the access list.