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Kinect-based multi-point speed measuring device for low-speed system and its speed measuring method

A tachometer device and low-speed technology, which is applied to devices using optical methods and other directions, can solve the problem of inability to measure the speed of multiple rotating systems at the same time, and achieve the effects of simple structure, convenient operation and low cost.

Active Publication Date: 2020-06-16
NINGBO CPX ELECTRONICS TECH
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  • Summary
  • Abstract
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  • Claims
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AI Technical Summary

Problems solved by technology

[0005] Existing measurement methods for low-speed systems are based on the difference of photoelectric signals, which cannot simultaneously measure the speed of multiple rotating systems

Method used

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  • Kinect-based multi-point speed measuring device for low-speed system and its speed measuring method
  • Kinect-based multi-point speed measuring device for low-speed system and its speed measuring method
  • Kinect-based multi-point speed measuring device for low-speed system and its speed measuring method

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Embodiment

[0028] In this embodiment, the hardware part of the kinect-based multi-point speed measurement device for low-speed systems includes a computer and a kinect sensor, and the software part includes a kinect data acquisition module and a data analysis and processing module in the computer. The low-speed rotating system is tested using a micro-fan as an example.

[0029] In this embodiment, the data acquisition is completed by using VC#2013 in combination with the SDK development kit and sample programs, and the data analysis and processing module is completed by matlab r2012b, and the process is as follows figure 2 As shown, the steps are as follows:

[0030] (i) Initialize the parameters of the kinect sensor and data analysis module. Set the resolution and frame rate of the color image and depth image, set the timer interval for data saving, and other parameters. After the setting is completed, when the program starts, the kinect sensor transmits the color image and the depth...

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Abstract

The invention discloses a multipoint speed measuring device for a low rotating speed system based on kinect. The multipoint speed measuring device includes a computer and a kinect sensor, wherein thekinect sensor collects depth image data of a to-be-tested low rotating speed system, and transmits the collected data to the computer; the computer is internally provided with a kinect data acquisition module and a data analysis and processing module, the kinect data acquisition module collects a depth image and a color image of the low rotating speed system, selects points of multiple rotating areas in the color image, calculates depth data of the corresponding points in the depth image, the depth data of multiple points are output at regular time by using a timer, and saved as a text file; and the data analysis and processing module analyzes and processes the collected depth image data to obtain the rotating speed of the low rotating speed system. The multipoint speed measuring device for the low rotating speed system based on the kinect is convenient for use and maintenance, according to the principle of the multipoint speed measuring device, the rotating speed of the rotating system can be measured, and the translational speed of a translational system can be measured.

Description

technical field [0001] The invention belongs to an electromechanical detection technology, and in particular relates to a kinect-based multi-point speed measurement device and a speed measurement method for a low-speed system. Background technique [0002] Image-based measurement technology is used in vehicle speed, ship speed, vacuum switch opening speed, and tobacco speed measurement. They all use color images to detect the displacement and corresponding time of the moving target to complete the speed detection. . Some people have also used color images to study the speed detection of UAV engines. They put reflective marks on the decelerated rotating parts, and complete the measurement of the speed by detecting the reflective marks. [0003] The Kinect sensor can acquire the color image and depth image of the target at the same time, and can perform dynamic capture, image recognition, voice input recognition and other functions. Once Kinect came out, it has been widely u...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01P3/38
CPCG01P3/38
Inventor 李忠国马旭唐炜迟睿卢道华王佳王琪袁春元
Owner NINGBO CPX ELECTRONICS TECH
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