Special vehicle tank body inclination angle detection and tilting control method and application

A technology for tanks and vehicles, which is applied in the field of tank inclination detection and inclination control of special vehicles, can solve problems such as excessive tank turnover, economic losses, and evolutionary production accidents, so as to ensure safety and reliability, and eliminate turning deflection. , remove the effect of cable connection

Active Publication Date: 2021-03-30
HUAZHONG UNIV OF SCI & TECH
View PDF3 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the closest existing technology: the safety problems that have occurred in the metallurgical industry in recent years are generally major accidents. Once the high-temperature molten metal operation accidents such as explosion, splashing, tipping, and leakage occur, it will cause huge economic losses and even casualties.
[0005] To sum up, the problems existing in the existing technology are: the current tank body turning operation mainly uses the master controller to limit the turning of the torpedo tank car.
During the long-term repeated overturning process, the master controller is likely to cause limit failure, which will lead to excessive overturning of the tank, and then evolve into a production accident
At present, the research mainly focuses on the electrical system, but the anti-tipping monitoring and early warning research of tank tilting under high temperature and dusty environment has not been reported yet.

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
  • Special vehicle tank body inclination angle detection and tilting control method and application
  • Special vehicle tank body inclination angle detection and tilting control method and application
  • Special vehicle tank body inclination angle detection and tilting control method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] Embodiment 1: Detection and tilting control technology of tank body inclination of special vehicles

[0055] 1.1 Inclination detection and control scheme design

[0056] The inclination angle of the torpedo tank is monitored by using the method of machine vision measurement, and the attitude of the locomotive body and the tilting condition of the torpedo tank are monitored throughout the whole process through the non-contact measurement method combined with a high-resolution camera and an inclination sensor, so as to avoid accidents caused by being too close to the torpedo tank The monitoring equipment fails or becomes unstable at high temperature, which causes the risk of derailment for the locomotive.

[0057] The system design installs the torpedo tank rotation measurement camera directly in front of the snowflake-shaped stiffener to be tested on the foreground vehicle, and transmits the image through the industrial wireless AP and the industrial computer at the shun...

Embodiment 2

[0069] Embodiment 2: Test of image recognition inclination calculation method

[0070] Test images such as figure 2 as shown, figure 2 (a) is the original image; figure 2 (b) is a grayscale image; figure 2 (c) is the image rotated 10°. Feature point extraction and matching such as image 3 as shown, image 3 (a) is feature point extraction, image 3 (b) is feature point matching. Test results such as Figure 4 as shown, Figure 4 (a) is the test image 2, Figure 4 (b) is the test image 3.

[0071] The present invention simulates and tests the measurement accuracy of the algorithm through multiple groups of experimental images, figure 2 and image 3 For the measurement process in a set of test cases, the software first blacks and whites the image, then extracts the feature points in the initial image and the rotated image, matches the feature points, and finally calculates the rotation between the two images through the matching relationship angle. The measur...

Embodiment 3

[0075] Embodiment 3: Image recognition inclination calculation simulation experiment test

[0076] 3.1 Test environment

[0077] The angle of rotation is measured using a Figure 5 The method shown, in which the table top of the precision rotary table is used as the measured object.

[0078] The precision rotary platform is driven by 42 stepper motors, and the rotation angle is precisely controlled by an external stepper motor driver. Its angular resolution is 0.000625°, which is far higher than the accuracy requirements of tank inclination measurement, and can be used as an ideal reference target. The parameters of the precision rotary table and its drive are shown in Table 2.

[0079] Table 2 Test equipment performance parameter table

[0080]

[0081] 3.2 Inclination measurement accuracy test experiment

[0082] (Indicator requirements: inclination detection accuracy 0.5°, inclination control accuracy 1°)

[0083] The inclination measurement accuracy depends on the ...

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

No PUM Login to View More

Abstract

The invention belongs to the technical field of torpedo tank car tank body inclination angle detection and tilting control, and discloses a special vehicle tank body inclination angle detection and tilting control method and system. The posture and the tilting condition of the tank body are monitored in the whole process in a non-contact measurement mode of combining a high-resolution camera and atilt angle sensor; an image of the high-resolution camera on line is processed by using special software in the industrial personal computer, and a rotation angle of the torpedo car tank body in theimage is calculated. when the rotation angle or speed is greater than a threshold value, the software generates a sound-light alarm signal. A continuous angle measuring method is adopted, the inclination angle of the tank body is continuously measured in real time, the inclination angle control and monitoring requirements in the tilting and transportation process are met, tilting control equipmentwith a PLC as a main controller is matched, the starting and stopping angle and the tilting speed of the tank body can be accurately controlled, and the safety and reliability of tilting operation are guaranteed to the maximum extent.

Description

technical field [0001] The invention belongs to the technical field of vehicle tank inclination detection and tilt control, and in particular relates to a special vehicle tank inclination detection and tilt control method and application. Background technique [0002] At present, the closest existing technology: the safety problems that have occurred in the metallurgical industry in recent years are generally major accidents. Once the high-temperature molten metal operation accidents such as explosion, splashing, tipping, and leakage occur, it will cause huge economic losses and even casualties. . [0003] The overturning accident of the special transport vehicle for high-temperature molten metal mainly occurred in the two links of overturning and transportation. When overturning, due to problems such as vehicle positioning and inclination control, the metal liquid did not flow into the designated position accurately, resulting in accidents. At present, the research on spec...

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
no application Login to View More
Patent Type & AuthorityApplications(China)
IPC IPC(8): G06T7/00G01C9/00G06T7/60
CPCG06T7/0004G06T7/60G01C9/00G06T2207/10004Y02P10/20
Inventor张先勇杨鸿斌李小青郑立斐
OwnerHUAZHONG UNIV OF SCI & TECH