A real-time monitoring and maintenance system and method for a high-speed magnetic levitation air valve

Abstract

The present invention provides a real-time monitoring and maintenance system and method for a high-speed magnetic levitation air valve, comprising a stress sensor, which is installed in the steel structure of the air valve blade of a tunnel ventilation system and is used to detect the strain of the air valve blade steel structure in real time; a stress processing device, which is used to calculate the deformation of the air valve blade steel structure according to the strain of the air valve blade steel structure; a deformation comparison device, which is used to compare the deformation of the air valve blade steel structure with a predetermined deformation threshold value and output a first comparison value; an image acquisition device, which is used to acquire an initial image of the air valve in a normal state when the air valve is installed for the first time, and is used to acquire an operation image of the air valve in real time during the operation of the air valve; an image comparison device, which is used to compare the operation image with the initial image and output a second comparison value; an early warning device, which is used to calculate the sum of the first comparison value and the second comparison value, and output different alarm signals according to the sum of the first comparison value and the second comparison value.

Description

Technical Field

[0001] The present invention relates to the technical field of high-speed magnetic levitation air valves, and in particular to a real-time monitoring and maintenance system and method for high-speed magnetic levitation air valves. Background Art

[0002] At present, the development of high-speed maglev is in full swing. This technology will fill the gap in travel speed between aviation and high-speed rail passenger transport. However, the air valves in the tunnel ventilation system of high-speed maglev will be subjected to higher wind speeds and pressures than in previous high-speed rail tunnels. In order to avoid deformation, loosening, or even falling of the air valves during operation, which may affect the operation of high-speed maglev trains, real-time monitoring and maintenance of the air valves will become particularly important. Therefore, it is necessary to develop a real-time monitoring and maintenance system and method for air valves for high-speed maglev to facilitate monitoring and maintenance of the air valves. Summary of the invention

[0003] The purpose of the present invention is to provide a real-time monitoring and maintenance system and method for a high-speed magnetic levitation air valve, so as to solve the problem of difficulty in monitoring and maintaining the existing high-speed magnetic levitation air valve.

[0004] In order to solve the above technical problems, the present invention provides a real-time monitoring and maintenance system for a high-speed magnetic levitation air valve, comprising: a stress sensor, installed in the steel structure of the air valve blade of the tunnel ventilation system, and used to detect the strain of the steel structure of the air valve blade in real time; a stress processing device, connected to the stress sensor, used to calculate the deformation of the steel structure of the air valve blade according to the strain of the steel structure of the air valve blade; a deformation comparison device, connected to the stress processing device, used to compare the deformation of the steel structure of the air valve blade with a predetermined deformation threshold, and output a first comparison value; an image acquisition device, used to acquire an initial image of the air valve in a normal state when the air valve is installed for the first time, and to acquire an operation image of the air valve in real time during the operation of the air valve; an image comparison device, connected to the image acquisition device, used to compare the operation image with the initial image, and output a second comparison value; and an early warning device, connected to the deformation comparison device and the image comparison device, used to calculate the sum of the first comparison value and the second comparison value, and output different alarm signals according to the sum of the first comparison value and the second comparison value.

[0005] Optionally, the deformation comparison device includes a difference calculation device for calculating the difference ΔXn between the deformation of N wind valve blade steel structures and a predetermined deformation threshold, a difference selection device for selecting the maximum deformation ΔXmax of the wind valve blade steel structure, and a difference judgment device for judging whether ΔXmax is greater than a predetermined deformation threshold, if ΔXmax is greater than the predetermined deformation threshold, the first comparison value is 1, if ΔXmax is less than the predetermined deformation threshold, the first comparison value is 0.

[0006] Optionally, the image comparison device determines whether there is a significant difference between the running image and the initial image by determining whether the similarity between the running image and the initial image is greater than a predetermined threshold. If the similarity is greater than the predetermined threshold, the second comparison value is 0; if the similarity is less than the predetermined threshold, the second comparison value is 1.

[0007] Optionally, if the first comparison value is 0, the second comparison value is 0, and the sum of the first comparison value and the second comparison value is 0, then the early warning device outputs a first alarm message; if one of the first comparison value and the second comparison value is 1, and the sum of the first comparison value and the second comparison value is 1, then the early warning device outputs a second alarm message; if the first comparison value is 1, the second comparison value is 1, and the sum of the first comparison value and the second comparison value is 2, then the early warning device outputs a third alarm message.

[0008] Optionally, the first alarm message is a green alarm light on, indicating that the air valve is operating normally, the second alarm message is a yellow alarm light on, indicating that there is a possibility of air valve failure and an early warning is issued, and the third alarm message is a red alarm light on, indicating that there is a failure in the air valve and an alarm should be called directly and maintenance and repair should be carried out immediately.

[0009] The present invention also provides a real-time monitoring and maintenance method for a high-speed magnetic levitation air valve, comprising: detecting the strain of the steel structure of the air valve blade in real time through a stress sensor installed in the steel structure of the air valve blade of a tunnel ventilation system; calculating the deformation of the steel structure of the air valve blade according to the strain of the air valve blade steel structure; comparing the deformation of the steel structure of the air valve blade with a predetermined deformation threshold, and outputting a first comparison value; collecting an initial image of the air valve in a normal state through an image collector when the air valve is installed for the first time; collecting an operating image of the air valve in real time through the image collector during the operation of the air valve; comparing the operating image of the air valve with the initial image, and outputting a second comparison value; calculating the sum of the first comparison value and the second comparison value, and outputting different alarm signals according to the sum of the first comparison value and the second comparison value.

[0010] Optionally, the deformation of the wind valve blade steel structure is compared with a predetermined deformation threshold and a first comparison value is output, including: calculating the difference ΔXn between the deformation of N wind valve blade steel structures and the predetermined deformation threshold, selecting the maximum deformation value ΔXmax of the wind valve blade steel structure, and judging whether ΔXmax is greater than the predetermined deformation threshold, if ΔXmax is greater than the predetermined deformation threshold, the first comparison value is 1, if ΔXmax is less than the predetermined deformation threshold, the first comparison value is 0.

[0011] Optionally, the operating image of the air valve is compared with the initial image, and a second comparison value is output, including: determining whether the similarity between the operating image and the initial image is greater than a predetermined threshold; if the similarity is greater than the predetermined threshold, the second comparison value is 0; if the similarity is less than the predetermined threshold, the second comparison value is 1.

[0012] Optionally, calculating the sum of the first comparison value and the second comparison value, and outputting different alarm signals according to the sum of the first comparison value and the second comparison value includes: if the first comparison value is 0 and the second comparison value is 0, the sum of the first comparison value and the second comparison value is 0, and a first alarm message is output; if one of the first comparison value and the second comparison value is 1, the sum of the first comparison value and the second comparison value is 1, and a second alarm message is output; if the first comparison value is 1 and the second comparison value is 1, the sum of the first comparison value and the second comparison value is 2, and a third alarm message is output.

[0013] The present invention provides a real-time monitoring and maintenance system and method for a high-speed magnetic suspension air valve, which has the following beneficial effects:

[0014] The present invention monitors the strain of the steel structure of the air valve blade in real time to monitor whether the air valve blade is deformed. In addition, it monitors whether the overall image of the air valve changes in real time to monitor whether the air valve bottom frame and the air valve blade of the air valve are deformed, loose, or dropped, thereby judging whether the air valve is deformed, loose, or even dropped, which may affect the operation of the high-speed maglev train. This makes it easier to monitor and maintain the air valve for high-speed maglev, and improves the safety of the operation of the high-speed maglev train. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is an installation elevation view of a high-speed magnetic suspension air valve in an embodiment of the present invention;

[0016] Figure 2 is a cross-sectional view of the installation of a high-speed magnetic suspension air valve in an embodiment of the present invention;

[0017] Figure 3 It is a structural block diagram of a real-time monitoring and maintenance system for a high-speed magnetic suspension air valve in an embodiment of the present invention;

[0018] Figure 4 It is a flow chart of a real-time monitoring and maintenance method of a high-speed magnetic suspension air valve in an embodiment of the present invention.

[0019] Description of reference numerals:

[0020] 100-air valve bottom frame; 200-air valve blades; 300-camera. DETAILED DESCRIPTION

[0021] The following is a further detailed description of the real-time monitoring and maintenance system and method for high-speed magnetic suspension air valves proposed by the present invention in conjunction with the accompanying drawings and specific embodiments. The advantages and features of the present invention will become clearer based on the following description. It should be noted that the accompanying drawings are all in a very simplified form and are not in precise proportions, and are only used to conveniently and clearly assist in explaining the purpose of the embodiments of the present invention.

[0022] refer to Figure 1 and Figure 2 , Figure 1 1 is an installation elevation view of a high-speed magnetic suspension air valve according to an embodiment of the present invention. Figure 2 1 is an installation cross-sectional view of a high-speed magnetic levitation air valve in an embodiment of the present invention. The air valve comprises an air valve bottom frame 100 and air valve blades 200 arranged on the air valve bottom frame 100 .

[0023] refer to Figure 3 , Figure 3 : is a structural block diagram of a real-time monitoring and maintenance system for a high-speed magnetic levitation air valve in an embodiment of the present invention. This embodiment provides a real-time monitoring and maintenance system for a high-speed magnetic levitation air valve, including:

[0024] A stress sensor is installed in the steel structure of the air valve blade 200 of the tunnel ventilation system and is used to detect the strain of the steel structure of the air valve blade 200 in real time;

[0025] A stress processing device, connected to the stress sensor, for calculating the deformation of the steel structure of the damper blade 200 according to the strain of the steel structure of the damper blade 200;

[0026] A deformation comparison device, connected to the stress processing device, for comparing the deformation of the steel structure of the damper blade 200 with a predetermined deformation threshold value, and outputting a first comparison value;

[0027] An image acquisition device, used to acquire an initial image of the air valve in a normal state when the air valve is installed for the first time, and to acquire an operating image of the air valve in real time during the operation of the air valve;

[0028] an image comparison device, connected to the image acquisition device, for comparing the running image with the initial image and outputting a second comparison value; and

[0029] The early warning device is connected to the deformation comparison device and the image comparison device, and is used to calculate the sum of the first comparison value and the second comparison value, and output different alarm signals according to the sum of the first comparison value and the second comparison value.

[0030] Specifically, the deformation comparison device includes a difference calculation device for calculating the difference ΔXn between the deformation of N steel structures of the wind valve blades 200 and a predetermined deformation threshold, a difference selection device for selecting the maximum deformation ΔXmax of the steel structure of the wind valve blade 200, and a difference judgment device for judging whether ΔXmax is greater than the predetermined deformation threshold, if ΔXmax is greater than the predetermined deformation threshold, the first comparison value is 1, if ΔXmax is less than the predetermined deformation threshold, the first comparison value is 0.

[0031] The image comparison device determines whether there is a significant difference between the running image and the initial image by determining whether the similarity between the running image and the initial image is greater than a predetermined threshold. If the similarity is greater than the predetermined threshold, the second comparison value is 0; if the similarity is less than the predetermined threshold, the second comparison value is 1.

[0032] In this embodiment, if the first comparison value is 0 and the second comparison value is 0, the sum of the first comparison value and the second comparison value is 0, and the early warning device outputs a first alarm message; if one of the first comparison value and the second comparison value is 1 and the sum of the first comparison value and the second comparison value is 1, the early warning device outputs a second alarm message; if the first comparison value is 1 and the second comparison value is 1, the sum of the first comparison value and the second comparison value is 2, and the early warning device outputs a third alarm message.

[0033] In this embodiment, the first alarm information is that the green alarm light is on, indicating that the air valve is operating normally. The second alarm information is that the yellow alarm light is on, indicating that there is a possibility of air valve failure and an early warning is issued. The third alarm information is that the red alarm light is on, indicating that there is a failure in the air valve and an alarm should be directly reported and maintenance and repair should be carried out immediately.

[0034] The image acquisition device is a camera 300. The camera 300 can capture the image of the entire air valve.

[0035] refer to Figure 4 , Figure 4 : is a flow chart of a real-time monitoring and maintenance method for a high-speed magnetic levitation air valve in an embodiment of the present invention. This embodiment also provides a real-time monitoring and maintenance method for a high-speed magnetic levitation air valve, including:

[0036] The strain of the steel structure of the air valve blade 200 of the tunnel ventilation system is detected in real time by a stress sensor installed in the steel structure of the air valve blade 200;

[0037] Calculating the deformation of the steel structure of the damper blade 200 according to the strain of the steel structure of the damper blade 200;

[0038] Compare the deformation of the steel structure of the damper blade 200 with a predetermined deformation threshold, and output a first comparison value;

[0039] When the damper is installed for the first time, an initial image of the damper in normal condition is collected by the image collector:

[0040] During the operation of the air valve, the image collector collects the operation image of the air valve in real time:

[0041] Comparing the operation image of the air valve with the initial image, and outputting a second comparison value;

[0042] The sum of the first comparison value and the second comparison value is calculated, and different alarm signals are output according to the sum of the first comparison value and the second comparison value.

[0043] Specifically, the deformation of the steel structure of the wind valve blade 200 is compared with a predetermined deformation threshold and a first comparison value is output, including: calculating the difference ΔXn between the deformation of N steel structures of the wind valve blade 200 and the predetermined deformation threshold, selecting the maximum deformation value ΔXmax of the steel structure of the wind valve blade 200, and judging whether ΔXmax is greater than the predetermined deformation threshold, if ΔXmax is greater than the predetermined deformation threshold, the first comparison value is 1, and if ΔXmax is less than the predetermined deformation threshold, the first comparison value is 0.

[0044] Wherein, N>1, and N is a positive integer. The deformation of the N damper blades 200 steel structure corresponds to N stress sensors.

[0045] The process of comparing the operating image of the air valve with the initial image and outputting a second comparison value includes: determining whether the similarity between the operating image and the initial image is greater than a predetermined threshold; if the similarity is greater than the predetermined threshold, the second comparison value is 0; if the similarity is less than the predetermined threshold, the second comparison value is 1.

[0046] The method of calculating the sum of the first comparison value and the second comparison value and outputting different alarm signals according to the sum of the first comparison value and the second comparison value includes: if the first comparison value is 0 and the second comparison value is 0, the sum of the first comparison value and the second comparison value is 0, and a first alarm message is output; if one of the first comparison value and the second comparison value is 1, the sum of the first comparison value and the second comparison value is 1, and a second alarm message is output; if the first comparison value is 1 and the second comparison value is 1, the sum of the first comparison value and the second comparison value is 2, and a third alarm message is output.

[0047] The above description is only a description of the preferred embodiments of the present invention, and is not intended to limit the scope of the present invention. Any changes or modifications made by a person skilled in the art in the field of the present invention based on the above disclosure shall fall within the scope of protection of the claims.

Claims

1. A real-time monitoring and maintenance system for a high-speed magnetic suspension air valve, characterized in that: include: Stress sensors are installed in the steel structure of the air valve blades of the tunnel ventilation system and are used to detect the strain of the steel structure of the air valve blades in real time; A stress processing device, connected to the stress sensor, for calculating the deformation of the steel structure of the damper blade according to the strain of the steel structure of the damper blade; A deformation comparison device, connected to the stress processing device, for comparing the deformation of the damper blade steel structure with a predetermined deformation threshold value and outputting a first comparison value; An image acquisition device, used to acquire an initial image of the air valve in a normal state when the air valve is installed for the first time, and to acquire an operating image of the air valve in real time during the operation of the air valve; An image comparison device, connected to the image acquisition device, for comparing the running image with the initial image and outputting a second comparison value; as well as, An early warning device, connected to the deformation comparison device and the image comparison device, for calculating the sum of the first comparison value and the second comparison value, and outputting different alarm signals according to the sum of the first comparison value and the second comparison value; The deformation amount comparison device includes a difference calculation device for calculating the difference ΔXn between the deformation amounts of the N damper blade steel structures and a predetermined deformation threshold, a difference selection device for selecting the maximum deformation amount ΔXmax of the damper blade steel structure, and a difference judgment device for judging whether ΔXmax is greater than the predetermined deformation threshold, if ΔXmax is greater than the predetermined deformation threshold, the first comparison value is 1, if ΔXmax is less than the predetermined deformation threshold, the first comparison value is 0; The image comparison device determines whether the running image and the initial image are obviously different by determining whether the similarity between the running image and the initial image is greater than a predetermined threshold value. If the similarity is greater than the predetermined threshold value, the second comparison value is 0; if the similarity is less than the predetermined threshold value, the second comparison value is 1; If the first comparison value is 0, the second comparison value is 0, and the sum of the first comparison value and the second comparison value is 0, the early warning device outputs a first alarm message; If one of the first comparison value and the second comparison value is 1, and the sum of the first comparison value and the second comparison value is 1, the early warning device outputs a second alarm message; if the first comparison value is 1, the second comparison value is 1, and the sum of the first comparison value and the second comparison value is 2, the early warning device outputs a third alarm message.

2. The real-time monitoring and maintenance system for high-speed magnetic levitation air valve according to claim 1 is characterized in that: The first alarm message is that the green alarm light is on, indicating that the air valve is operating normally. The second alarm message is that the yellow alarm light is on, indicating that there may be an air valve failure and an early warning is issued. The third alarm message is that the red alarm light is on, indicating that there is a failure in the air valve. An alarm should be called directly and maintenance and repair should be carried out immediately.

3. A real-time monitoring and maintenance method for a high-speed magnetic levitation air valve, characterized in that: include: The strain of the steel structure of the air valve blades of the tunnel ventilation system is detected in real time by using stress sensors installed in the steel structure of the air valve blades; Calculating the deformation of the steel structure of the damper blade according to the strain of the steel structure of the damper blade; The deformation of the steel structure of the damper blade is compared with a predetermined deformation threshold, and a first comparison value is output; specifically, the difference ΔXn between the deformation of the N damper blade steel structures and the predetermined deformation threshold is calculated, the maximum deformation ΔXmax of the damper blade steel structure is selected, and it is determined whether ΔXmax is greater than the predetermined deformation threshold, if ΔXmax is greater than the predetermined deformation threshold, the first comparison value is 1, and if ΔXmax is less than the predetermined deformation threshold, the first comparison value is 0; When the damper is installed for the first time, an initial image of the damper in normal condition is collected by the image collector: During the operation of the air valve, the image collector collects the operation image of the air valve in real time: The operation image of the air valve is compared with the initial image, and a second comparison value is output; specifically, it is determined whether the similarity between the operation image and the initial image is greater than a predetermined threshold; if the similarity is greater than the predetermined threshold, the second comparison value is 0; if the similarity is less than the predetermined threshold, the second comparison value is 1; Calculate the sum of the first comparison value and the second comparison value, and output different alarm signals according to the sum of the first comparison value and the second comparison value; specifically, if the first comparison value is 0 and the second comparison value is 0, the sum of the first comparison value and the second comparison value is 0, and the first alarm information is output; If one of the first comparison value and the second comparison value is 1, the sum of the first comparison value and the second comparison value is 1, and the second alarm information is output; if the first comparison value is 1 and the second comparison value is 1, the sum of the first comparison value and the second comparison value is 2, and the third alarm information is output.

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