Biometric Sensor Processor Load Reduction via Dual MCU Architecture
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Solution Overview
Problem
Existing biological information measurement devices do not effectively reduce the processing load of the processor responsible for writing and reading measured biological data, leading to potential delays in processing.
Innovation Solution
The implementation of a measurement device with a first processor for measurement and a second processor for wireless communication, where the second processor handles the writing, reading, and transmission of biological data to an information terminal, thereby distributing the processing load and reducing the burden on the first processor.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a single processor is used for both measurement and wireless communication, then device complexity is reduced, but processing load increases causing measurement delays
Solution Approach 1:
The patent divides the processor functions into two separate processors: a first processor dedicated to measurement operations and a second processor dedicated to wireless communication operations. This segmentation allows each processor to specialize in its specific task, reducing the processing load and preventing delays in measurement operations while maintaining relatively simple device architecture through clear functional separation.
2Speed
If the first processor handles data transmission directly, then interface complexity is reduced, but processing load and transmission speed are limited
Solution Approach 1:
The patent extracts the data transmission function from the first processor and assigns it to the second processor. The first processor only specifies memory addresses for data storage and retrieval, while the second processor handles the actual data reading and wireless transmission. This extraction eliminates the need for complex flow control and delivery confirmation interfaces between processors, enabling faster data transfer while keeping the interface configuration relatively simple.
3Productivity
If the first processor performs write and read operations, then data access flexibility is improved, but processing time is consumed
Solution Approach 1:
The patent introduces a memory system as an intermediary between the first processor and the second processor. The first processor writes measurement data to the memory and specifies read addresses, while the second processor reads from and transmits the data from the memory. This intermediary approach allows parallel operation of measurement and transmission functions, improving overall system throughput while minimizing processing delays through efficient memory access management.
Data Source
AI summary
A measurement device, a control method, and a control recording medium that can reduce a processing load of a processor and suppress a delay in processing such as measurement are provided. A measurement device according to one aspect of the present invention includes a main MCU that performs measurement based on biological data obtained by a sensor, a communication IC that performs wireless communication with an information terminal, and a nonvolatile memory connected to the communication IC. The main MCU specifies an address of a write destination in the nonvolatile memory and causes the communication IC to write the biological data into the nonvolatile memory, and specifies an address of a read source in the nonvolatile memory and causes the communication IC to read the biological data from the nonvolatile memory and transmit the biological data to the information terminal.