Composite software filtering method and system applied to AD collection
What is Al technical title?
Al technical title is built by PatSnap Al team. It summarizes the technical point description of the patent document.
A software filtering and composite technology, applied in the field of signal processing, can solve the problems of inability to effectively suppress the periodic interference of irregular high-frequency signals, poor smoothness, and large overall data deviation.
Active Publication Date: 2019-03-08
SHANDONG LUNENG SOFTWARE TECH
View PDF9 Cites 4 Cited by
Summary
Abstract
Description
Claims
Application Information
AI Technical Summary
This helps you quickly interpret patents by identifying the three key elements:
Problems solved by technology
Method used
Benefits of technology
Problems solved by technology
However, none of the above filtering methods can effectively suppress irregular high-frequency signals and periodic interference. In addition to the large deviation of the overall data, there is also the problem of poor smoothness.
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more
Image
Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
Click on the blue label to locate the original text in one second.
Reading with bidirectional positioning of images and text.
Smart Image
Examples
Experimental program
Comparison scheme
Effect test
Embodiment 1
[0047] This scheme discloses a compound software filtering method applied in AD acquisition, such as Figure 9 shown, including:
[0048] Obtain the original time series data after AD conversion, and open up a certain space for sequential storage;
[0049] Take the latest continuous measured values of N items and sort them to get a set of increasing or decreasing sequence {n 1 , n 2 ,...,n N};
[0050] Process the obtained increasing or decreasing sequence, and discard the X items of data at the front end and back end of the sequence respectively, where X is not greater than 0.5N, and average the remaining data to obtain a preprocessing value
[0051] Reacquire the latest continuous measured values of N items for sorting, repeat the above operation M times, and finally obtain M items of preprocessing values.
[0052] Preferably, the value of M is greater than 5 and is a multiple of 5.
[0053] Define a window with a time period of T and a storage space of M, store ...
Embodiment 2
[0070] The invention discloses a composite software filtering system applied in AD acquisition, which includes a server, the server includes a memory, a processor, and a computer program stored in the memory and operable on the processor, the program implements The composite software filter applied in AD acquisition described in Example 1.
Embodiment 3
[0072]The invention discloses a computer-readable storage medium, on which a computer program is stored, and when the program is executed by a processor, the compound software filtering method applied in AD acquisition described in the first embodiment is executed.
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more
PUM
Login to view more
Abstract
The invention discloses a composite software filtering method and system applied to AD collection. The method comprises the following steps: taking N latest continuous measured values for sorting, andselecting a "half-insertion sorting" algorithm to obtain a group of arrays arranged according to a set sequence; processing the obtained arrays by using a median average filtering algorithm to obtainM preprocessed values; storing the obtained preprocessed values according to a timing sequence to obtain a group of arrays comprising M preprocessed values; respectively filtering M data within eachperiod by using an improved moving average filtering method to obtain a group of new arrays; and performing data smoothing processing on the new arrays. The composite software filtering method and system disclosed by the invention have the beneficial effects that the abnormal fluctuation of collected signals caused by external interference can be suppressed, the interference of external signals isavoided as much as possible, the error of data collection is reduced, and the stability of the system is improved.
Description
technical field [0001] The invention belongs to the technical field of signal processing, and in particular relates to a composite filtering method and system for performing software filtering processing on AD acquisition (converting analog signals into digital signals) signals. Background technique [0002] With the rapid development of electronic technology and digital technology, the transmission speed of signals and the processing speed of CPU are getting faster and faster, so the requirements for data acquisition and processing are also getting higher and higher. In the single-chip microcomputer hardware system, the analog-to-digital conversion circuit is a quantization process that converts the received analog signal into an equivalent digital quantity. The A / D chip equipped in it outputs a digital signal. By setting the sampling frequency in the program, the interrupt method is used. Or query method to obtain the voltage signal that the main CPU can receive. [0003]...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more
Application Information
Patent Timeline
Application Date:The date an application was filed.
Publication Date:The date a patent or application was officially published.
First Publication Date:The earliest publication date of a patent with the same application number.
Issue Date:Publication date of the patent grant document.
PCT Entry Date:The Entry date of PCT National Phase.
Estimated Expiry Date:The statutory expiry date of a patent right according to the Patent Law, and it is the longest term of protection that the patent right can achieve without the termination of the patent right due to other reasons(Term extension factor has been taken into account ).
Invalid Date:Actual expiry date is based on effective date or publication date of legal transaction data of invalid patent.
Login to view more 
Login to view more