A special vehicle tank inclination detection and inclination control method and application

A technology for tanks and vehicles, which is applied in the field of tank inclination detection and tilt control of special vehicles, can solve problems such as excessive tank turnover, limit failure of the main controller, and evolution of production accidents, so as to ensure safety and reliability. , avoid the risk of derailment, remove the effect of cable connection

Active Publication Date: 2022-07-08
HUAZHONG UNIV OF SCI & TECH
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  • 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

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  • A special vehicle tank inclination detection and inclination control method and application
  • A special vehicle tank inclination detection and inclination control method and application
  • A special vehicle tank inclination detection and inclination control method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] Example 1: Special vehicle tank tilt angle detection and tilt control technology

[0055] 1.1 Design of inclination detection and control scheme

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

[0057] The system is designed to install the torpedo rotation measurement camera directly in front of the snowflake-shaped reinforcing rib to be tested on the front trolley, and transmit the image through the industrial wireless AP and the industrial computer at the shunting machine side. On...

Embodiment 2

[0069] Embodiment 2: Image recognition tilt angle calculation method test

[0070] test images such as figure 2 shown, figure 2 (a) is the original image; figure 2 (b) is a grayscale image; figure 2 (c) is an image rotated by 10°. Feature point extraction and matching such as image 3 shown, image 3 (a) is the feature point extraction, image 3 (b) is the feature point matching. Test results such as Figure 4 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 sets of experimental images, figure 2 and image 3 For the measurement process in a set of test cases, the software first turns the image into black and white, then extracts the feature points in the initial image and the rotated image respectively, matches the feature points, and finally converts the rotation between the two images through the matching relationship. an...

Embodiment 3

[0075] Example 3: Image Recognition Inclination Calculation Simulation Experiment Test

[0076] 3.1 Test environment

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

[0078] The precision rotary platform is driven by a 42-step motor, and the rotation angle is precisely controlled by an external stepper motor driver. The parameters of the precision rotary table and drive are shown in Table 2.

[0079] Table 2 Test equipment performance parameter table

[0080]

[0081] 3.2 Test experiment of inclination angle measurement accuracy

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

[0083] The measurement accuracy of the inclination angle depends on the measurement mean value and the error distribution of the equipment. Since the tilting range of the torpedo tanker is limited within the range of ±120°, in the tes...

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PUM

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Abstract

The invention belongs to the technical field of torpedo tank body inclination detection and tilt control, and discloses a special vehicle tank inclination detection and tilt control method and system. The machine vision measurement method is used to detect the inclination of the torpedo tank body. The non-contact measurement method combined with the rate camera and the inclination sensor monitors the attitude and tilting status of the tank throughout the whole process; the special software in the industrial computer is used to process the image of the high-resolution camera online, and the rotation angle of the torpedo tank in the image is calculated; When the angle or speed is greater than the threshold, the software will generate an audible and visual alarm signal. The invention adopts the continuous angle measurement method to continuously measure the tank inclination in real time, so as to ensure the inclination control and monitoring requirements during the tilting and transportation process, and cooperate with the inclination control equipment with PLC as the main controller, which can accurately control the starting and ending angles of the tank. The dumping speed ensures the safety and reliability of the dumping operation to the greatest 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 in the metallurgical industry in recent years are generally major accidents. Once high-temperature molten metal operation accidents such as explosion, splash, tipping, and leakage occur, they will cause huge economic losses and even casualties. . [0003] The overturning accident of the special transport vehicle for high temperature molten metal mainly occurs in the two links of overturning and transportation. During the overturning, due to the problems of vehicle positioning and inclination control, the metal liquid does not flow into the designated position accurately, resulting in the accident. At present, the research on special transport veh...

Claims

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Application Information

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Patent Type & Authority Patents(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
Owner HUAZHONG UNIV OF SCI & TECH
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