Compound filter calculation system and method of electrocardiograph based on android system

Abstract

The invention discloses a composite filtering calculation method of an electrocardiograph based on an Android system. The method comprises the steps of 1, acquiring filtering data; 2, putting the databefore filtering into a filter buffer according to an array form of 8 rows and 9 columns; 3, performing composite filtering operation; 4, outputting the data after composite filtering. The inventionsuccessfully applies a compound filtering method to an electrocardiogram machine of an Android system, does not need additional hardware filtering circuit support, and is realized by using a softwarealgorithm. Flexible operation and easy modification. According to the invention, 24 data points of the 8-channel 12-lead read out in 2 milliseconds at a time can complete compound filtering operationin 0.2 microseconds, which ensures the filtering effect and has very good real-time performance. Compared with building the traditional hardware filtering circuit, the invention greatly reduces the time overhead and hardware cost, and improves the reliability and controllability of filtering.

Description

Technical field [0001] The invention relates to the field of biomedicine and computing technology, in particular to a composite filter computing system and method for an electrocardiograph based on an Android system. Background technique [0002] Wave filtering is the operation of filtering out specific band frequencies in the received signal containing interference, and is an important measure to suppress and prevent interference. According to the way of realization, it can be divided into software filtering and hardware filtering. The software filtering operation is flexible and easy to modify. The hardware filtering is complicated to build in the early stage, and expansion is troublesome. For some complex filtering requirements, pure hardware filtering is now less and less. [0003] Most of the traditional electrocardiographs are produced by the accumulation of hardware technology. The hardware filtering method requires high performance of the original device. Of course, there...

AI Technical Summary

Problems solved by technology

Hardware filtering is complicated to build in the early stage, and expansion is troublesome. For some complex filtering requirements, there are fewer and fewer simple hardware filtering.

[0003] Most of the traditional electrocardiographs are produced by the accumulation of hardware technology. The hardware filtering method has high requirements on the performance of the original device. Of course, there will be no major problems in normal use, but it is difficult to locate and find problems.

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