A control method and system for a dust removal device of a whole vehicle in a railway tunnel

Abstract

The present application provides a control method and system for a dust removal device of a whole vehicle in a railway tunnel, which relates to the technical field of railway equipment control. The horizontal conveyor belt of the dust removal device in the railway tunnel is monitored in real time to obtain a real-time drive current sequence; electromagnetic disturbance information is acquired, and the electromagnetic disturbance amount during the real-time current monitoring is determined through the electromagnetic disturbance information. The real-time drive current sequence is compensated according to the electromagnetic disturbance amount, and then a drive current compensation sequence is obtained; the current separation coefficient of the drive current compensation sequence is determined, the drive current compensation sequence is converted into a current limit control domain of the horizontal conveyor belt, and the current change response degree of the horizontal conveyor belt is determined according to the current separation coefficient and the current limit control domain; the running speed of the horizontal conveyor belt is regulated based on the current change response degree. The present application can control the running speed of the horizontal conveyor belt according to the current of the drive motor of the horizontal conveyor belt, so as to improve the safety of the dust removal device of the railway tunnel during operation.

Description

Technical Field

[0001] This application relates to the technical field of railway equipment control. More specifically, this application relates to a control method and system for a whole-vehicle railway tunnel dust removal device. Background Art

[0002] The railway tunnel dust removal device is used for the treatment of sand hazards caused by locomotive sand spraying in long and steep tunnels. The main working devices are composed of a power unit, pipelines, a dust collection box (including a hopper and a discharger), a horizontal conveyor belt, and a folding conveyor belt. During operation, the sand scattered by the locomotive is sent to the dust collection box through the pipeline, separated at the upper part of the dust collection box and settled into the hopper, discharged to the horizontal conveyor belt through the discharger under the hopper, conveyed to the folding conveyor belt, and then conveyed to a material transport vehicle for storage and transported out of the tunnel. The sand hazard is effectively treated, the tunnel dust is reduced, and the purpose of tunnel dust removal is indirectly achieved.

[0003] To ensure the efficient and stable operation of the railway tunnel dust removal device and avoid equipment damage or material blockage caused by problems such as excessive resistance or material jamming, in the prior art, through precise real-time monitoring and intelligent control mechanisms, the normal operation of the device is guaranteed to the greatest extent. However, the resistance change during material transportation is difficult to predict, and the fluidity of sand and dust is affected by factors such as the tunnel environment, humidity, and particle size, which may cause large fluctuations in the load of the conveyor belt and cannot accurately reflect the resistance of the horizontal conveyor belt, resulting in equipment overload and failure. Therefore, how to control the running speed of the horizontal conveyor belt based on the current of the driving motor of the horizontal conveyor belt to improve the safety of the railway tunnel dust removal device during operation is a difficult problem faced by the industry. Summary of the Invention

[0004] This application provides a control method and system for a whole-vehicle railway tunnel dust removal device, which can control the running speed of the horizontal conveyor belt based on the current of the driving motor of the horizontal conveyor belt to improve the safety of the railway tunnel dust removal device during operation.

[0005] In a first aspect, this application provides a control method for a whole-vehicle railway tunnel dust removal device, and the control method includes the following steps:

[0006] Real-time monitor the horizontal conveyor belt of the railway tunnel dust removal device to obtain a real-time driving current sequence of the horizontal conveyor belt;

[0007] Obtain the electromagnetic disturbance information in the horizontal conveyor belt, determine the electromagnetic disturbance amount when monitoring the real-time current through the electromagnetic disturbance information, and compensate the real-time driving current sequence according to the electromagnetic disturbance amount to obtain a driving current compensation sequence of the horizontal conveyor belt;

[0008] Determine the current isolation coefficient of the drive current compensation sequence, convert the drive current compensation sequence into the current limit control domain of the horizontal conveyor belt, and determine the current change responsiveness of the horizontal conveyor belt according to the current isolation coefficient and the current limit control domain;

[0009] Regulate the running speed of the horizontal conveyor belt based on the current change responsiveness.

[0010] In this embodiment, a current sensor is used to monitor the drive motor in the horizontal conveyor belt of the railway tunnel dust removal device in real time.

[0011] In this embodiment, a Hall sensor is used to obtain the electromagnetic disturbance information in the horizontal conveyor belt.

[0012] In this embodiment, determining the electromagnetic disturbance amount during monitoring of the real-time current based on the electromagnetic disturbance information specifically includes:

[0013] Extract the electromagnetic disturbance signal to the current sensor from the electromagnetic disturbance information;

[0014] Perform spectrum analysis on the electromagnetic disturbance signal to obtain the electromagnetic disturbance characteristics of the current sensor;

[0015] Determine the electromagnetic disturbance amount during monitoring of the real-time current based on the electromagnetic disturbance characteristics.

[0016] In this embodiment, compensating the real-time drive current sequence according to the electromagnetic disturbance amount, and then obtaining the drive current compensation sequence of the horizontal conveyor belt specifically includes:

[0017] Determine the electromagnetic disturbance compensation amount according to the electromagnetic disturbance amount and the real-time drive current sequence;

[0018] Compensate each drive current value in the real-time drive current sequence based on the electromagnetic disturbance compensation amount, and then obtain the drive current compensation sequence of the horizontal conveyor belt.

[0019] In this embodiment, the current isolation coefficient is an index indicating the degree of dispersion of the drive current values in the drive current compensation sequence.

[0020] In this embodiment, converting the drive current compensation sequence into the current limit control domain of the horizontal conveyor belt specifically includes:

[0021] Obtain the historical drive current data of the drive motor of the horizontal conveyor belt;

[0022] Determine the drive current anomaly threshold according to the historical drive current data;

[0023] Select all drive current limit values in the drive current compensation sequence according to the drive current anomaly threshold;

[0024] Construct a current limit control domain of the horizontal conveyor belt through all drive current limit control values.

[0025] In this embodiment, determining the current change responsiveness of the horizontal conveyor belt according to the current alienation coefficient and the current limit control domain specifically includes:

[0026] Determine a current trend value and a current limit control coefficient through the current limit control domain;

[0027] Determine the current change responsiveness of the horizontal conveyor belt based on the current alienation coefficient, the current trend value, and the current limit control coefficient.

[0028] In this embodiment, regulating the running speed of the horizontal conveyor belt based on the current change responsiveness specifically includes:

[0029] Obtain a preset response interval;

[0030] When the current change responsiveness is less than the lower bound of the response interval, increase the running speed of the horizontal conveyor belt;

[0031] When the current change responsiveness is within the response interval, maintain the current running speed of the horizontal conveyor belt;

[0032] When the current change responsiveness is greater than the upper bound of the response interval, decrease the running speed of the horizontal conveyor belt.

[0033] In a second aspect, the present application provides a control system for a vehicle-mounted railway tunnel dust removal device, which is used to execute a control method for a vehicle-mounted railway tunnel dust removal device. The control system includes:

[0034] A real-time monitoring module, which is used to monitor the horizontal conveyor belt of the railway tunnel dust removal device in real time, and then obtain a real-time drive current sequence of the horizontal conveyor belt;

[0035] A current compensation module, which is used to obtain electromagnetic disturbance information in the horizontal conveyor belt, determine the electromagnetic disturbance amount when monitoring the real-time current through the electromagnetic disturbance information, and compensate the real-time drive current sequence according to the electromagnetic disturbance amount, and then obtain a drive current compensation sequence of the horizontal conveyor belt;

[0036] A current response module, which is used to determine the current alienation coefficient of the drive current compensation sequence, convert the drive current compensation sequence into a current limit control domain of the horizontal conveyor belt, and determine the current change responsiveness of the horizontal conveyor belt according to the current alienation coefficient and the current limit control domain;

[0037] A speed regulation module, which is used to regulate the running speed of the horizontal conveyor belt based on the current change responsiveness.

[0038] The technical solutions provided by the embodiments disclosed in this application have the following beneficial effects:

[0039] By monitoring the horizontal conveyor belt of the railway tunnel dust removal device in real time, the real-time drive current sequence of the horizontal conveyor belt is obtained; the electromagnetic disturbance information in the horizontal conveyor belt is acquired, the electromagnetic disturbance amount during the real-time current monitoring is determined through the electromagnetic disturbance information, the real-time drive current sequence is compensated according to the electromagnetic disturbance amount, and then the drive current compensation sequence of the horizontal conveyor belt is obtained; the current deviation coefficient of the drive current compensation sequence is determined, the drive current compensation sequence is converted into the current limit control domain of the horizontal conveyor belt, and the current change response degree of the horizontal conveyor belt is determined according to the current deviation coefficient and the current limit control domain; the running speed of the horizontal conveyor belt is regulated based on the current change response degree.

[0040] It can be seen that in this application, firstly, by acquiring the electromagnetic disturbance information in the horizontal conveyor belt and compensating the drive current in real time, the influence of electromagnetic interference on current measurement can be effectively eliminated, so as to obtain more accurate drive current data, which can significantly improve the accuracy of motor control, enable the control system to more accurately sense the load change of the conveyor belt, and avoid control deviation caused by mismeasurement; secondly, by determining the current deviation coefficient of the drive current compensation sequence and converting it into the current limit control domain of the horizontal conveyor belt, the change range of the current can be accurately monitored, so as to effectively identify abnormal current fluctuations. Based on the current change response degree determined by the current deviation coefficient and the current limit control domain, the sensitivity of the system to current fluctuations can be adjusted in real time to quickly respond to problems such as load changes and abnormal resistance; finally, regulating the running speed of the horizontal conveyor belt based on the current change response degree can dynamically adjust the running state of the horizontal conveyor belt to cope with load changes and system anomalies, and improve the safety of the railway tunnel dust removal device during operation.

[0041] In summary, the technical solution adopted in this application can control the running speed of the horizontal conveyor belt according to the current of the drive motor of the horizontal conveyor belt to improve the safety of the railway tunnel dust removal device during operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] In order to more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only the embodiments of this application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0043] Figure 1 is a flowchart of the control method for the vehicle-mounted railway tunnel dust removal device provided by this application;

[0044] Figure 2 It is the overall structure diagram of the railway tunnel dust removal device provided according to the present application;

[0045] Figure 3 It is a schematic flow chart for determining the drive current compensation sequence of the horizontal conveyor belt provided according to the present application;

[0046] Figure 4 It is a schematic flow chart for determining the current limit control region of the horizontal conveyor belt provided according to the present application;

[0047] Figure 5 It is the module structure diagram of the control system for the whole vehicle railway tunnel dust removal device provided according to the present application. Specific embodiments

[0048] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0049] The embodiments of the present application provide a control method and system for a whole vehicle railway tunnel dust removal device. The core is to monitor the horizontal conveyor belt of the railway tunnel dust removal device in real time, and then obtain the real-time drive current sequence of the horizontal conveyor belt; obtain the electromagnetic disturbance information in the horizontal conveyor belt, determine the electromagnetic disturbance amount when monitoring the real-time current through the electromagnetic disturbance information, and compensate the real-time drive current sequence according to the electromagnetic disturbance amount, and then obtain the drive current compensation sequence of the horizontal conveyor belt; determine the current separation coefficient of the drive current compensation sequence, convert the drive current compensation sequence into the current limit control region of the horizontal conveyor belt, and determine the current change response degree of the horizontal conveyor belt according to the current separation coefficient and the current limit control region; regulate the running speed of the horizontal conveyor belt based on the current change response degree. By adopting the above solution, the running speed of the horizontal conveyor belt can be controlled according to the current of the drive motor of the horizontal conveyor belt, so as to improve the safety of the railway tunnel dust removal device during operation.

[0050] Embodiment 1. To better understand the above technical solutions, the above technical solutions will be described in detail below in conjunction with the accompanying drawings of the specification and specific embodiments. Refer to Figure 1 As shown, this figure is an exemplary flow chart of a control method for a whole vehicle railway tunnel dust removal device shown in this embodiment of the present application. The control method includes the following steps:

[0051] In step S1, the horizontal conveyor belt of the railway tunnel dust removal device is monitored in real time, and then the real-time drive current sequence of the horizontal conveyor belt is obtained.

[0052] When specifically implemented, the drive motor in the horizontal conveyor belt of the railway tunnel dust removal device can be monitored in real time through a current sensor, and then the real-time drive current sequence of the horizontal conveyor belt is obtained; the current sensor can be installed at the power input end of the drive motor to measure the current change, and all the monitored drive current values can be combined in the order of acquisition time, so as to obtain the real-time drive current sequence of the horizontal conveyor belt.

[0053] It should be noted that in this application, the main components of the whole railway tunnel dust removal device are as Figure 2 shown, where 1 is the control system, 2 is the folding conveyor belt, 3 is the horizontal conveyor belt, 4 is the dust collection box, 4-1 is the ash hopper, 4-2 is the discharger, 5 is the pipeline, and 6 is the power unit.

[0054] In step S2, the electromagnetic disturbance information in the horizontal conveyor belt is obtained, the electromagnetic disturbance amount during monitoring the real-time current is determined through the electromagnetic disturbance information, and the real-time drive current sequence is compensated according to the electromagnetic disturbance amount, so as to obtain the drive current compensation sequence of the horizontal conveyor belt.

[0055] In this embodiment, the electromagnetic disturbance information in the horizontal conveyor belt can be obtained through a Hall sensor; it should be noted that in this application, the electromagnetic disturbance information refers to the information of being electromagnetically interfered when using a current sensor to monitor the drive motor of the horizontal conveyor belt; when specifically implemented, a Hall sensor can be deployed at the installation position of the current sensor, and the electromagnetic field intensity signal in the environment is collected in real time through the Hall sensor. The Hall sensor converts the environmental magnetic field signal into a voltage signal. After removing high-frequency noise through an amplification and filtering circuit, the sensor digitizes the signal through a high-speed data acquisition module, so as to obtain a plurality of electromagnetic disturbance signals, and the data composed of all electromagnetic disturbance signals is used as the electromagnetic disturbance information.

[0056] In this embodiment, the following method can be specifically adopted to determine the electromagnetic disturbance amount during monitoring the real-time current through the electromagnetic disturbance information, that is:

[0057] Extract the electromagnetic disturbance signal to the current sensor from the electromagnetic disturbance information;

[0058] Perform spectrum analysis on the electromagnetic disturbance signal to obtain the electromagnetic disturbance characteristics to the current sensor;

[0059] Determine the electromagnetic disturbance amount during monitoring the real-time current according to the electromagnetic disturbance characteristics.

[0060] In specific implementation, first, an electromagnetic disturbance signal for the current sensor can be extracted from the electromagnetic disturbance information, that is, an electromagnetic disturbance signal that interferes with the frequency band of the current sensor is screened out from the electromagnetic disturbance information, and this electromagnetic disturbance signal is used as the electromagnetic disturbance signal for the current sensor; then, spectrum analysis can be performed on the electromagnetic disturbance signal, that is, fast Fourier transform processing is performed on this electromagnetic disturbance signal to convert the time-domain signal into a frequency-domain representation. By analyzing the spectrogram, the main components of the electromagnetic disturbance signal and their corresponding amplitudes are identified, so that the extracted frequency and amplitude information can be used as electromagnetic disturbance characteristics; finally, the electromagnetic disturbance amount during monitoring of the real-time current can be determined based on the electromagnetic disturbance characteristics, where this electromagnetic disturbance amount represents the intensity of the electromagnetic disturbance received by the current sensor. In actual implementation, the amplitude integration method can be used to perform integral calculation on the amplitude information in the electromagnetic disturbance characteristics, and the calculation result is used as the electromagnetic disturbance amount during monitoring of the real-time current.

[0061] Preferably, in this embodiment, the real-time drive current sequence is compensated according to the electromagnetic disturbance amount, and then a drive current compensation sequence for the horizontal conveyor belt is obtained. Refer to Figure 3 As shown, this figure is a schematic flowchart for determining the drive current compensation sequence of the horizontal conveyor belt in some embodiments of the present application. The drive current compensation sequence of the horizontal conveyor belt in this embodiment can be implemented by the following steps:

[0062] In step S21, an electromagnetic disturbance compensation amount is determined according to the electromagnetic disturbance amount and the real-time drive current sequence;

[0063] In step S22, each drive current value in the real-time drive current sequence is compensated based on the electromagnetic disturbance compensation amount, and then a drive current compensation sequence for the horizontal conveyor belt is obtained.

[0064] In specific implementation, first, an electromagnetic disturbance compensation amount can be determined according to the electromagnetic disturbance amount and the real-time drive current sequence. The electromagnetic disturbance compensation amount is a compensation amount used to eliminate the drive current error caused by electromagnetic disturbance. The mean value of all drive current values in the real-time drive current sequence can be calculated, and this mean value is multiplied by the electromagnetic disturbance amount. The product of the calculation result and the regulation coefficient is used as the electromagnetic disturbance compensation amount, where the regulation coefficient is a coefficient used to regulate the value and accuracy of the electromagnetic disturbance compensation amount. The natural exponential function value of the opposite of the variance of all drive current values in the real-time drive current sequence can be used as the regulation coefficient; then, each drive current value in the real-time drive current sequence can be compensated based on the electromagnetic disturbance compensation amount, that is, the sum of each drive current value in the real-time drive current sequence and the electromagnetic disturbance compensation amount is used as the corresponding drive current compensation value, so that the data formed by combining all drive current compensation values in chronological order can be used as the drive current compensation sequence of the horizontal conveyor belt.

[0065] It should be noted that by obtaining the electromagnetic disturbance information in the horizontal conveyor belt and compensating the drive current in real time, the influence of electromagnetic interference on current measurement can be effectively eliminated, so as to obtain more accurate drive current data, which can significantly improve the accuracy of motor control, enable the control system to more accurately sense the load change of the conveyor belt, and avoid control deviation caused by mismeasurement. During the process of adjusting the running speed of the horizontal conveyor belt according to the drive motor current, accurate current data helps to timely identify abnormal working conditions (such as overload, jamming, etc.), and perform dynamic adjustment or emergency stop, thereby reducing the equipment failure rate, preventing material accumulation or conveyor belt damage, and improving the safety and stability during the operation of the railway tunnel dust removal device.

[0066] In step S3, determine the current alienation coefficient of the drive current compensation sequence, convert the drive current compensation sequence into the current limit control domain of the horizontal conveyor belt, and determine the current change response degree of the horizontal conveyor belt according to the current alienation coefficient and the current limit control domain.

[0067] In this embodiment, determine the current alienation coefficient of the drive current compensation sequence, where this current alienation coefficient is an index indicating the discrete degree of the drive current values in the drive current compensation sequence. In actual implementation, this current alienation coefficient can be determined by the following formula:

[0068]

[0069] where represents the current alienation coefficient, n represents the total number of drive current compensation values in the drive current compensation sequence, represents the i-th drive current compensation value in the drive current compensation sequence, represents the average value of the drive current compensation values in the drive current compensation sequence.

[0070] Preferably, in this embodiment, convert the drive current compensation sequence into the current limit control domain of the horizontal conveyor belt. Referring to Figure 4 shown in the figure, which is a schematic flow chart for determining the current limit control domain of the horizontal conveyor belt in some embodiments of the present application. The current limit control domain of the horizontal conveyor belt in this embodiment can be implemented by the following steps:

[0071] In step S31, obtain the historical drive current data of the drive motor of the horizontal conveyor belt;

[0072] In step S32, determine the drive current abnormal threshold according to the historical drive current data;

[0073] In step S33, screen out all drive current limit control values in the drive current compensation sequence according to the drive current abnormal threshold;

[0074] In step S34, the current limit control domain of the horizontal conveyor belt is constructed by all the driving current limit control values.

[0075] In specific implementation, first, the historical driving current data of the horizontal conveyor belt driving motor can be obtained. The historical driving current data can be monitored and stored for a long time by a current sensor, and includes the current change information of the conveyor belt motor under different working conditions; then, the driving current abnormality threshold can be determined according to the historical driving current data, wherein the driving current abnormality threshold is a threshold used to judge whether the driving current is abnormal. The abnormality at this time is usually caused by the current sensor error caused by external interference, and in the present application, the driving current abnormality threshold includes a first threshold and a second threshold, and the first threshold is less than the second threshold. The mean and standard deviation of all driving current values ​​in the historical driving current data can be calculated, so that the sum of the mean and 3 times the standard deviation is used as the first threshold, and the difference between the mean and 3 times the standard deviation is used as the second threshold. The driving current abnormality threshold can be obtained in the above manner.

[0076] In addition, in a specific implementation, all driving current limit control values ​​in the driving current compensation sequence can be screened out according to the driving current abnormal threshold, that is, the driving current compensation values ​​in the driving current compensation sequence that are greater than the first threshold and less than the second threshold are used as driving current limit control values, thereby obtaining all driving current limit control values ​​in the driving current compensation sequence; then, the current limit control domain of the horizontal conveyor belt can be constructed through all the driving current limit control values, that is, the data composed of all the driving current limit control values ​​are combined as the current limit control domain of the horizontal conveyor belt.

[0077] In this embodiment, the current change responsiveness of the horizontal conveyor belt can be determined according to the current alienation coefficient and the current limit control range in the following manner, namely:

[0078] Determine the current trend value and the current limit control coefficient through the current limit control domain;

[0079] The current change responsiveness of the horizontal conveyor belt is determined based on the current alienation coefficient, the current trend value and the current limit control coefficient.

[0080] In specific implementation, first, the current trend value and the current limit control coefficient can be determined through the current limit control domain. Among them, the current trend value represents the central value of the change trend of all drive current limit values in the current limit control domain, and the average value of all drive current limit values in the current limit control domain can be used as the current trend value. The current limit control coefficient represents the degree of fluctuation of all drive current limit values in the current limit control domain. The maximum drive current limit value and the minimum drive current limit value in the current limit control domain can be obtained by traversing, so that the ratio of the minimum drive current limit value to the maximum drive current limit value can be used as the current limit control coefficient. Then, based on the current deviation coefficient, the current trend value, and the current limit control coefficient, the current change responsiveness of the horizontal conveyor belt can be determined. Among them, the current change responsiveness is an index indicating the stability of the drive current change process of the horizontal conveyor belt drive motor. The current deviation coefficient can be multiplied by the current trend value, and the product of the result and the current limit control coefficient can be used as the current change responsiveness of the horizontal conveyor belt.

[0081] It should be noted that by determining the current deviation coefficient of the drive current compensation sequence and converting it into the current limit control domain of the horizontal conveyor belt, the change range of the current can be accurately monitored, so as to effectively identify abnormal current fluctuations. Based on the current change responsiveness determined by the current deviation coefficient and the current limit control domain, the sensitivity of the system to current fluctuations can be adjusted in real time, quickly responding to problems such as load changes and abnormal resistance, thereby avoiding equipment damage or failures caused by abnormal current. In the railway tunnel dust removal device, this method can accurately control the drive current of the horizontal conveyor belt, ensure the stability and safety of the conveyor belt running speed, avoid speed loss or material blockage caused by current fluctuations, and further improve the safety and operation efficiency of the tunnel dust removal device.

[0082] In step S4, the running speed of the horizontal conveyor belt is regulated based on the current change responsiveness.

[0083] In this embodiment, regulating the running speed of the horizontal conveyor belt based on the current change responsiveness can be specifically implemented in the following manner, that is:

[0084] Obtain a preset response interval;

[0085] When the current change responsiveness is less than the lower bound of the response interval, increase the running speed of the horizontal conveyor belt;

[0086] When the current change responsiveness is within the response interval, maintain the current running speed of the horizontal conveyor belt;

[0087] When the current change responsiveness is greater than the upper bound of the response interval, decrease the running speed of the horizontal conveyor belt.

[0088] In specific implementation, first, a preset response range can be obtained. The response range can be set through historical experiments and data analysis, which will not be elaborated here. Then, the current change responsiveness is compared with the response range. When the current change responsiveness is less than the lower bound of the response range, it indicates that the current change of the horizontal conveyor belt drive motor is small, the load is light, or the operation is too slow. At this time, the system judges that there may be a situation where the optimal transportation efficiency has not been achieved. Therefore, the operating speed of the horizontal conveyor belt will be increased. The operation of increasing the speed can be achieved by increasing the driving power of the drive motor, thereby increasing the rotational speed of the horizontal conveyor belt to transport materials more effectively. When the current change responsiveness is within the response range, it means that the current change of the horizontal conveyor belt drive motor is normal and the load is moderate. The system can maintain the current operating speed of the horizontal conveyor belt. In this case, there is no need to adjust the speed to maintain a stable working state. When the current change responsiveness is greater than the upper bound of the response range, it indicates that the current fluctuation of the horizontal conveyor belt drive motor is large, and there may be abnormal situations such as overloading or jamming of the horizontal conveyor belt. At this time, the system will judge that it is necessary to reduce the operating speed of the horizontal conveyor belt, which can be achieved by reducing the driving power of the drive motor and lowering the rotational speed of the horizontal conveyor belt to avoid equipment damage or failures caused by excessive load or abnormal resistance.

[0089] It should be noted that the advantage of regulating the operating speed of the horizontal conveyor belt based on the current change responsiveness is that it can dynamically adjust the operating state of the horizontal conveyor belt to cope with load changes and system abnormalities, improve the safety of the railway tunnel dust removal device during operation, reduce the risk of failures caused by improper operation or abnormal situations, and ensure the long-term stable and efficient operation of the equipment.

[0090] Thus, it can be seen that in this application, first, by obtaining the electromagnetic disturbance information in the horizontal conveyor belt and performing real-time compensation on the drive current, the influence of electromagnetic interference on current measurement can be effectively eliminated, thereby obtaining more accurate drive current data, significantly improving the accuracy of motor control, enabling the control system to more accurately perceive the load changes of the conveyor belt, and avoiding control deviations caused by mismeasurement. Then, by determining the current separation coefficient of the drive current compensation sequence and converting it into the current limit control domain of the horizontal conveyor belt, the change range of the current can be accurately monitored, thereby effectively identifying abnormal current fluctuations. Based on the current change responsiveness determined by the current separation coefficient and the current limit control domain, the sensitivity of the system to current fluctuations can be adjusted in real time to quickly respond to problems such as load changes and abnormal resistance. Finally, regulating the operating speed of the horizontal conveyor belt based on the current change responsiveness can dynamically adjust the operating state of the horizontal conveyor belt to cope with load changes and system abnormalities, and improve the safety of the railway tunnel dust removal device during operation.

[0091] In summary, the technical solution adopted in this application can control the operating speed of the horizontal conveyor belt based on the current of the horizontal conveyor belt drive motor, so as to improve the safety of the railway tunnel dust removal device during operation.

[0092] Embodiment 2. The present application provides a control system for a whole-vehicle railway tunnel dust removal device. Refer to Figure 5 As shown in the figure, which is a schematic diagram of the control system for the whole-vehicle railway tunnel dust removal device according to this embodiment of the present application. The control system includes:

[0093] A real-time monitoring module 100, which is used to monitor the horizontal conveyor belt of the railway tunnel dust removal device in real time, and then obtain the real-time drive current sequence of the horizontal conveyor belt;

[0094] A current compensation module 200, which is used to obtain the electromagnetic disturbance information in the horizontal conveyor belt, determine the electromagnetic disturbance amount when monitoring the real-time current through the electromagnetic disturbance information, and compensate the real-time drive current sequence according to the electromagnetic disturbance amount, so as to obtain the drive current compensation sequence of the horizontal conveyor belt;

[0095] A current response module 300, which is used to determine the current isolation coefficient of the drive current compensation sequence, convert the drive current compensation sequence into the current limit control domain of the horizontal conveyor belt, and determine the current change response degree of the horizontal conveyor belt according to the current isolation coefficient and the current limit control domain;

[0096] A speed regulation module 400, which is used to regulate the operating speed of the horizontal conveyor belt based on the current change response degree.

[0097] This application is described with reference to the flowcharts and / or block diagrams of methods, devices (systems), and computer program products according to the embodiments of this application. It should be understood that each process and / or block in the flowchart and / or block diagram can be implemented by computer program instructions, and the combination of the processes and / or blocks in the flowchart and / or block diagram can also be implemented by computer program instructions. These computer program instructions can be provided to the processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing devices to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing devices generate a device for realizing the functions specified in one process Figure 1 one process or multiple processes and / or blocks Figure 1 one block or multiple blocks.

[0098] Those of ordinary skill in the art can understand that all or part of the steps in the various methods of the above embodiments can be completed by instructing relevant hardware through a program, and the program can be stored in a computer-readable storage medium. The storage medium includes read-only memory (ROM), random access memory (RAM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), one-time programmable read-only memory (OTPROM), electrically-erasable programmable read-only memory (EEPROM), compact disc read-only memory (CD-ROM) or other optical disc memories, magnetic disc memories, tape memories, or any other medium that can be used to carry or store data and is computer-readable.

[0099] It should also be noted that the term "including", "comprising" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, commodity or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or further includes elements inherent in such process, method, commodity or device. Without further limitation, an element defined by the statement "including one..." does not exclude the existence of another identical element in the process, method, commodity or device including the element.

Claims

1. A control method for a whole vehicle railway tunnel dust removal device, characterized in that: The control method comprises the following steps: Real-time monitoring of the horizontal conveyor belt of the railway tunnel dust removal device is carried out to obtain the real-time driving current sequence of the horizontal conveyor belt; Acquire electromagnetic disturbance information in the horizontal conveyor belt, determine the electromagnetic disturbance amount when monitoring the real-time current through the electromagnetic disturbance information, compensate the real-time drive current sequence according to the electromagnetic disturbance amount, and then obtain the drive current compensation sequence of the horizontal conveyor belt; Determine a current alienation coefficient of the driving current compensation sequence, convert the driving current compensation sequence into a current limit control domain of a horizontal conveyor belt, and determine a current change responsiveness of the horizontal conveyor belt according to the current alienation coefficient and the current limit control domain; Controlling the running speed of the horizontal conveyor belt based on the current change responsiveness; The current alienation coefficient is an indicator representing the degree of discreteness of the driving current value in the driving current compensation sequence; Converting the drive current compensation sequence into a current limit control domain of a horizontal conveyor belt specifically includes: Obtain historical driving current data of the horizontal conveyor belt driving motor; Determine a driving current abnormality threshold value according to the historical driving current data; Filter out all driving current limit control values ​​in the driving current compensation sequence according to the driving current abnormal threshold value; The current limit control domain of the horizontal conveyor belt is constructed by all driving current limit control values; Determining the current change responsiveness of the horizontal conveyor belt according to the current alienation coefficient and the current limit control region specifically includes: Determine the current trend value and the current limit control coefficient through the current limit control domain; The current isolation coefficient is multiplied by the current trend value, and the product of the result and the current limit control coefficient is used as the current change responsiveness of the horizontal conveyor belt.

2. A control method for a whole vehicle railway tunnel dust removal device as claimed in claim 1, characterized in that: The driving motor in the horizontal conveyor belt of the railway tunnel dust removal device is monitored in real time by current sensors.

3. A control method for a whole vehicle railway tunnel dust removal device as claimed in claim 1, characterized in that: The electromagnetic disturbance information in the horizontal conveyor belt is obtained through the Hall sensor.

4. A control method for a whole vehicle railway tunnel dust removal device as claimed in claim 1, characterized in that: Determining the electromagnetic disturbance amount when monitoring the real-time current through the electromagnetic disturbance information specifically includes: Extracting an electromagnetic disturbance signal for a current sensor from the electromagnetic disturbance information; Performing spectrum analysis on the electromagnetic disturbance signal to obtain electromagnetic disturbance characteristics of the current sensor; The electromagnetic disturbance amount when monitoring the real-time current is determined according to the electromagnetic disturbance characteristics.

5. A control method for a whole vehicle railway tunnel dust removal device as claimed in claim 1, characterized in that: Compensating the real-time driving current sequence according to the electromagnetic disturbance amount to obtain the driving current compensation sequence of the horizontal conveyor belt specifically includes: Determining an electromagnetic disturbance compensation amount according to the electromagnetic disturbance amount and the real-time drive current sequence; Each driving current value in the real-time driving current sequence is compensated based on the electromagnetic disturbance compensation amount, thereby obtaining a driving current compensation sequence of the horizontal conveyor belt.

6. A control method for a whole vehicle railway tunnel dust removal device as claimed in claim 1, characterized in that: The method of regulating the running speed of the horizontal conveyor belt based on the current change responsiveness specifically includes: Get the preset response interval; When the current change responsiveness is less than the lower limit of the response interval, increasing the running speed of the horizontal conveyor belt; When the current change responsiveness is within the response interval, maintaining the current running speed of the horizontal conveyor belt; When the current change responsiveness is greater than the upper limit of the response interval, the running speed of the horizontal conveyor belt is reduced.

7. A control system for a whole vehicle railway tunnel dust removal device, used to execute a control method for a whole vehicle railway tunnel dust removal device as claimed in any one of claims 1 to 6, characterized in that: The control system comprises: A real-time monitoring module is used to monitor the horizontal conveyor belt of the railway tunnel dust removal device in real time, thereby obtaining the real-time driving current sequence of the horizontal conveyor belt; A current compensation module is used to obtain electromagnetic disturbance information in the horizontal conveyor belt, determine the electromagnetic disturbance amount when monitoring the real-time current through the electromagnetic disturbance information, compensate the real-time driving current sequence according to the electromagnetic disturbance amount, and then obtain the driving current compensation sequence of the horizontal conveyor belt; A current response module, used to determine the current alienation coefficient of the driving current compensation sequence, convert the driving current compensation sequence into a current limit control domain of the horizontal conveyor belt, and determine the current change responsiveness of the horizontal conveyor belt according to the current alienation coefficient and the current limit control domain; The speed control module is used to control the running speed of the horizontal conveyor belt based on the current change responsiveness.

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