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Algorithm for vehicle-mounted electronic sensor voltage signal filtering

A sensor voltage and signal filtering technology, which is applied to electrical components, impedance networks, digital technology networks, etc., can solve problems such as low precision and poor real-time performance, and achieve good compatibility, good real-time performance, and high execution efficiency.

Inactive Publication Date: 2017-12-01
WENZHOU CHANGJIANG AUTOMOBILE ELECTRONICS SYST
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Problems solved by technology

[0007] In order to solve the deficiencies of the existing data filtering algorithm, the present invention proposes a new algorithm for filtering the voltage signal of the vehicle-mounted electronic sensor, combined with the own rules of data flow processing, through collecting signals from time to time and quickly sorting the data from time to time, the result is high precision And the effective signal value with good real-time performance is convenient for the application layer to judge the signal of the sensor in time, and effectively solves the problems of low precision and poor real-time performance of the existing methods

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  • Algorithm for vehicle-mounted electronic sensor voltage signal filtering
  • Algorithm for vehicle-mounted electronic sensor voltage signal filtering
  • Algorithm for vehicle-mounted electronic sensor voltage signal filtering

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Embodiment Construction

[0037] Below in conjunction with example the present invention will be further described.

[0038] refer to Figure 1-5 , the present invention provides a novel algorithm suitable for filtering voltage signals of on-board electronic sensors. In the example, 5 sample data are set to be sampled, the data source array is defined as SrcData[5], the sorting array is defined as DesData[5], and the data source array is defined as The serial number of is defined as i, including the following steps:

[0039] (1) Initialize the sensor module, including the definition of SrcData[5], DesData[5], AD converter driver initialization, corresponding IO port configuration, module variable initialization, i initialization to 0, SrcData[5] ] and DesData[5] are initialized to 0xFFFF (indicating an invalid value), and x1 and x2 are initialized to 0xFFFF (indicating an invalid value), etc., and the data sampling of the AD port is started;

[0040] (2) To run the periodic task of the sensor module,...

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Abstract

The invention relates to an algorithm for vehicle-mounted electronic sensor voltage signal filtering. The algorithm comprises the following steps: (1) initializing a sensor module, the initialization comprises initializing an AD converter drive, configuring a corresponding IO port, defining array size, initializing array data as 0*FFFF, and initializing module variable, and starting the data sampling of the AD port; and (2) running a period task of the sensor module, wherein the size of the general period is decided according to the channel number of the sensor, the data precision and the system resource allocation. The technical scheme provided by the invention effectively solves the problems of low precision and bad instantaneity of the existing method.

Description

technical field [0001] The invention relates to a novel algorithm suitable for filtering voltage signals of vehicle-mounted electronic sensors, which belongs to the technical field of automotive electronics and is also suitable for embedded electronic equipment. Background technique [0002] With the rapid development of smart car electronic technology, various sensors are used more and more widely in cars. Although the execution speed of processors has also increased significantly, the number of sensors has also increased exponentially, and considering the comprehensiveness of various sensor signals The real-time and accuracy of the effective value of various sensor signals are getting higher and higher, which requires a set of efficient data processing algorithms. [0003] At present, the commonly used sensor data processing algorithms include algorithms such as averaging and bubble sorting to find the median value. [0004] The averaging algorithm is relatively simple, t...

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Application Information

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IPC IPC(8): H03H17/02
CPCH03H17/0201
Inventor 夏亚军林尚栋
Owner WENZHOU CHANGJIANG AUTOMOBILE ELECTRONICS SYST
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