Command-Based Checksum Handling for Sensor Data Reads
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Solution Overview
Problem
Conventional checksum methods do not adequately account for the type of command when adding checksums to data transmitted in response to requests, leading to inefficiencies.
Innovation Solution
A checksum addition method that calculates checksums based on the type of command, using a communication unit within an IC to read data, calculate checksums, and transmit them appropriately for READ, BURST READ, and RESULT READ commands.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a conventional checksum method is used for all command types, then the implementation is simple and uniform, but the checksum calculation is not optimized for specific command types leading to reduced efficiency
Solution Approach 1:
The patent segments the checksum calculation process by command type. Different checksum calculation methods are applied based on the specific command type (READ, BURST READ, RESULT READ). This segmentation allows optimization for each command type while maintaining a structured approach to handling diversity in calculation requirements.
Solution Approach 2:
The patent implements dynamic checksum calculation where the calculation method adapts based on the command type. The system dynamically selects the appropriate checksum algorithm and parameters according to the specific read command being executed, enabling optimized performance for each command scenario rather than using a static uniform approach.
2Reliability
If checksum calculation is performed for every data transmission, then data integrity is improved, but the processing time and computational overhead increase
Solution Approach 1:
The patent changes parameters of the checksum calculation based on command type. By adjusting checksum length, polynomial selection, and calculation scope according to the specific command (READ, BURST READ, RESULT READ), the system maintains data integrity while minimizing unnecessary computational overhead for different data transmission scenarios.
Data Source
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AI summary
A checksum addition method includes a command obtaining step of obtaining a command and an address transmitted from a request source; a data reading step of reading data from the address according to the command; a checksum calculating step of calculating a checksum to be added to the data; and a data transmitting step of transmitting the checksum and the data to the request source, wherein the checksum calculating step calculates the checksum in a data unit according to a type of the command.