Wet sticky material removal system, method, device, apparatus, and storage medium

Abstract

The application discloses a wet sticky material removing system, method, device, equipment and storage medium. Current data of an oil pump motor are collected through a current detection unit, vibration data of an edge sweeping device are collected through a vibration detection unit, and the collected current data and vibration data are transmitted to a controller. After the collected current data and vibration data are processed and judged by the controller, the speed of the oil pump motor is controlled through a frequency converter, so that the bristles on the edge sweeping device connected with the oil pump motor are subjected to centrifugal force, wet sticky material adhered to the bristles is thrown off, and the cleaning work of the bristles is efficiently completed without stopping the machine.

Description

Technical Field

[0001] This application relates to the field of train carriage cleaning equipment technology, and in particular to a wet and sticky material desiccation system, method, apparatus, equipment and storage medium. Background Technology

[0002] After transporting sticky materials with high moisture content, train carriages need to be cleaned, typically using motor-driven brushes. However, the high stickiness of wet materials makes them adhere easily to the brush bristles, affecting overall cleaning efficiency and placing additional load on the drive motor, reducing its lifespan. Currently, to address the issue of material sticking to the brush bristles, existing technologies typically involve manual cleaning or replacing the entire brush. However, manual cleaning requires stopping the motor, which is time-consuming and inefficient, and can also compromise worker safety. Replacing the entire brush requires stopping the motor, is inefficient, and costly. Summary of the Invention

[0003] This application aims to provide a wet and sticky material descrambling system, method, apparatus, equipment, and storage medium that can quickly and efficiently descramble wet and sticky materials from brush bristles.

[0004] According to the wet and sticky material desiccant system of the first aspect of this application, a side sweeping device is used to desiccate materials. The side sweeping device is fixed with bristles. The side sweeping device is driven by an oil pump motor to make the bristles rotate. The speed of the oil pump motor is adjusted by a frequency converter. A wet, sticky material desiccant system includes: The current detection unit is used to detect the current data of the oil pump motor; Vibration detection unit is used to detect vibration data of the side-scanning device; The controller is electrically connected to the current detection unit, vibration detection unit, and frequency converter, respectively, and is used to control the speed of the oil pump motor through the frequency converter based on the current data and vibration data.

[0005] The wet viscous material descrambling method according to the second aspect of this application, applied to the wet viscous material descrambling system as described in the first aspect, includes: Acquire current data collected by the current detection unit and operational vibration data collected by the vibration detection unit; Determine the amplitude of the dominant frequency of the operating vibration data; Vibration judgment factors are determined based on the amplitude of the dominant operating frequency, and the amplitude of the dominant operating frequency is positively correlated with the vibration judgment factors. If the current data is greater than or equal to the preset current threshold, the vibration judgment factor is greater than or equal to the preset vibration threshold, and the duration is greater than or equal to the threshold time, the unloading speed in the self-unloading program is increased, the first duration is extended, and the second duration is shortened. The self-unloading process includes: The oil pump motor is controlled to accelerate from its base speed to the descrambling speed within the third time period; Control the oil pump motor to run at the discharge speed for the first duration; Control the oil pump motor to decelerate to its base speed within the fourth time interval; Control the oil pump motor to run at the base speed for the second duration.

[0006] In some implementations, the vibration judgment factors determined based on the amplitude of the dominant operating frequency include: Acquire no-load vibration data of the oil pump motor under no-load conditions; Determine the no-load dominant frequency amplitude of the no-load vibration data; The ratio of the operating main frequency amplitude to the no-load main frequency amplitude is recorded as the vibration judgment factor.

[0007] In some embodiments, the method for removing wet, sticky materials further includes: The control oil pump motor is to run idle for the fifth hour; Acquire idling current data collected by the current detection unit and idling vibration data collected by the vibration detection unit; Determine the amplitude of the dominant frequency of the idling vibration data; The operating status of the vibration detection unit is determined based on the amplitude of the idling main frequency; The operating status of the current detection unit is determined based on the idling current data.

[0008] In some embodiments, the method for removing wet, sticky materials further includes: In the event of failure of the current detection unit, if the vibration judgment factor is greater than or equal to the preset vibration threshold and the duration is greater than or equal to the threshold time, the unloading speed in the self-unloading program is increased, the first duration is extended, and the second duration is shortened. In the event of vibration detection unit failure, if the current data is greater than or equal to the preset current threshold and the duration is greater than or equal to the threshold time, the unloading speed in the self-unloading program is increased, the first duration is extended, and the second duration is shortened.

[0009] In some embodiments, the method for removing wet, sticky materials further includes: If the current data is less than the preset current threshold and the vibration judgment factor is less than the preset vibration threshold, the unloading speed, first duration, and second duration will be restored to their initial values.

[0010] In some embodiments, the method for removing wet, sticky materials further includes: In the event of a failure of the vibration detection unit, the oil pump motor is accelerated. After three speed-up processes, and with the vibration detection unit resuming operation, the wet and sticky material desiccation method continues to run.

[0011] The wet viscous material dewatering device according to a third aspect of this application is applied to the wet viscous material dewatering system as described in the first aspect embodiment. The wet viscous material dewatering device includes: The data collection module is used to acquire current data collected by the current detection unit and operational vibration data collected by the vibration detection unit. The dominant frequency amplitude determination module is used to determine the dominant frequency amplitude of the running vibration data. The vibration judgment factor determination module is used to determine the vibration judgment factors based on the amplitude of the main operating frequency. The amplitude of the main operating frequency is positively correlated with the vibration judgment factors. The unloading execution module is used to speed up the unloading speed in the self-unloading program, extend the first duration, and shorten the second duration when the current data is greater than or equal to the preset current threshold, the vibration judgment factor is greater than or equal to the preset vibration threshold, and the duration is greater than or equal to the threshold time. The self-unloading process includes: The oil pump motor is controlled to accelerate from its base speed to the descrambling speed within the third time period; Control the oil pump motor to run at the discharge speed for the first duration; Control the oil pump motor to decelerate to its base speed within the fourth time interval; Control the oil pump motor to run at the base speed for the second duration.

[0012] According to an embodiment of the fourth aspect of this application, the electronic device includes a processor and a memory storing a computer program; the computer program executed by the processor is to implement the wet and sticky material descrambling method as described in the second aspect of the present application.

[0013] According to a fifth aspect embodiment of the present application, a computer-readable storage medium stores computer-executable instructions for causing a computer to perform a wet and sticky material removal method as described in the second aspect embodiment above; the storage medium can be applied to an electronic device as described in the third aspect embodiment above.

[0014] The wet and sticky material removal system, method, apparatus, equipment, and storage medium provided in this application collect current data of the oil pump motor through a current detection unit and vibration data of the side sweeping device through a vibration detection unit. The collected current and vibration data are transmitted to a controller. The controller processes and judges the collected current and vibration data and controls the speed of the oil pump motor through a frequency converter. This causes the bristles on the side sweeping device connected to the oil pump motor to remove the adhered wet and sticky material under the action of centrifugal force, thereby achieving efficient cleaning of the bristles without stopping the machine.

[0015] Other features and advantages of this application will be set forth in the following description and will be apparent in part from the description or may be learned by practicing the application. Attached Figure Description

[0016] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is a functional block diagram of the wet and sticky material desiccant system according to an embodiment of this application; Figure 2 This is a structural diagram of the wet and sticky material desiccant system according to an embodiment of this application; Figure 3 This is a flowchart illustrating a wet, sticky material removal method according to an embodiment of this application.

[0017] Figure label: Side sweeping device 100; Oil pump motor 200; 310 analog input terminal of frequency converter; Current detection unit 410; vibration detection unit 420; controller 430. Detailed Implementation

[0018] The embodiments of this application are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0019] In the description of this application, the use of terms such as "first," "second," etc., is for the purpose of distinguishing technical features only and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or the order of the technical features indicated.

[0020] In the description of this application, it should be understood that the orientation descriptions, such as up, down, etc., are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0021] In the description of this application, it should be noted that, unless otherwise explicitly defined, terms such as "setup," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this application in conjunction with the specific content of the technical solution.

[0022] The technical solution of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described below are some embodiments of this application, not all embodiments.

[0023] like Figure 1 and Figure 2 As shown, an embodiment of this application provides a wet and sticky material descrambling system for descrambling a side sweeping device 100, on which bristles are fixed; the side sweeping device 100 is driven by an oil pump motor 200 to make the bristles rotate, and the oil pump motor 200 adjusts the speed through a frequency converter. A wet, sticky material desiccant system includes: The current detection unit 410 is used to detect the current data of the oil pump motor 200; Vibration detection unit 420 is used to detect vibration data of side sweep device 100; The controller 430 is electrically connected to the current detection unit 410, the vibration detection unit 420 and the frequency converter, respectively, and is used to control the speed of the oil pump motor 200 through the frequency converter based on the current data and vibration data.

[0024] In this embodiment, the current data of the oil pump motor 200 is collected by the current detection unit 410, and the vibration data of the side sweeper 100 is collected by the vibration detection unit 420. The collected current data and vibration data are transmitted to the controller 430. After processing and judging the collected current data and vibration data, the controller 430 controls the speed of the oil pump motor 200 through the frequency converter. This causes the bristles on the side sweeper 100 connected to the oil pump motor 200 to remove the adhering wet and sticky material under the action of centrifugal force, thereby achieving efficient cleaning of the bristles without stopping the machine.

[0025] The aforementioned side sweeping device 100 is installed on the inner wall of the train car during operation. The side sweeping device 100 has a roller structure and is equipped with bristles. The bristles are used to clean the wet and sticky materials on the inner wall of the train car. The side sweeping device 100 can be installed on a side sweeping rotating bracket, which can be a fixed bracket or a detachable bracket. It can also be installed on equipment or devices for cleaning train cars. The side sweeping device 100 can also move inside the train car with the help of movable equipment or devices for cleaning train cars to complete the cleaning work of different positions on the inner wall of the train car.

[0026] The aforementioned oil pump motor 200 is connected to the side sweeping device 100. After the oil pump motor 200 is powered on, it drives the side sweeping device 100 to operate, thereby completing the cleaning work on the inner wall of the train carriage. The oil pump motor 200 can be a separate structure where the motor and oil pump are independent of each other. The motor and oil pump can be connected by couplings, belts, chains, or other components for transmission. This allows for separate selection and matching of motor and oil pump models according to different specifications and performance requirements. The separate oil pump motor 200 also allows for individual replacement in case of failure and facilitates disassembly, assembly, and maintenance. Alternatively, the oil pump motor 200 can be an integrated structure where the motor and oil pump are directly connected and coaxially driven, thereby reducing the size and simplifying the structure, resulting in less vibration and noise, and smoother operation.

[0027] The aforementioned frequency converter is electrically connected to the oil pump motor 200. The frequency converter can be one of an AC variable frequency drive or a vector frequency converter. The frequency converter can receive signals from the controller 430 through its analog input terminal 310, thereby adjusting the operating speed of the oil pump motor 200 by changing the power supply frequency. The frequency converter can also receive command signals by integrating Bluetooth, LoRa, 4G, or other radio frequency communication modules, thus enabling remote control of the oil pump motor 200. The frequency converter also enables smooth start-up and shutdown of the oil pump motor 200, reducing mechanical shock. Furthermore, the frequency converter has overload, undervoltage, and overheat protection functions, ensuring long-term stable operation of the oil pump motor 200 and reducing equipment energy consumption.

[0028] The aforementioned current detection unit 410 is a current sensor, specifically any one of a current transformer, Hall effect current sensor, or through-hole current transmitter. The current detection unit 410 adopts a through-hole mounting method and has a ring or frame structure. During installation, any one of the input phase wires of the oil pump motor 200 passes through the central hole of the sensor, achieving non-contact current detection without disconnecting the circuit. The current detection unit 410 can detect the operating current of the oil pump motor 200 in real time and transmit the obtained current data as a 0-10V signal to the input terminal of the controller 430, thereby providing data support for subsequent material removal operations.

[0029] The vibration detection unit 420 is a vibration sensor, specifically either a piezoelectric vibration sensor or a capacitive vibration sensor. Preferably, a piezoelectric vibration sensor is used as the vibration detection unit 420. The vibration detection unit 420 is installed on the outside of the bearing seat of the side sweeper rotating bracket. The vibration detection unit 420 can detect the vibration data of the side sweeper 100 in real time, such as the vibration frequency, and transmit the collected vibration data to the input terminal of the controller 430 in a 4-20mA signal, thereby providing data support for subsequent material removal operations.

[0030] The controller 430 described above can be a programmable logic controller (PLC), specifically, it can be any one of an integrated micro PLC, a modular small PLC, a wired communication PLC, or an industrial bus PLC. The controller 430 includes a first input terminal (AI0), a second input terminal (AI1), and an output terminal (AO0). The first input terminal (AI0) is connected to a current sensor to receive current data from the current detection unit 410. The second input terminal (AI1) is connected to a vibration sensor to receive vibration data from the vibration detection unit 420. The output terminal (AO0) is connected to the analog input terminal 310 of the frequency converter, thereby controlling the speed of the oil pump motor 200 through the frequency converter.

[0031] The aforementioned controller 430 preferentially employs analog control. The controller 430's output terminal (AO0) outputs a 0-10V standard DC voltage signal to the inverter's analog input terminal 310. This voltage value has a linear relationship with the inverter's set output frequency. Operators can pre-set the maximum output frequency in the inverter to 0-1.2 times the rated frequency of the oil pump motor 200, thus ensuring that a 10V input voltage corresponds to the oil pump motor 200's maximum operating speed, and a 0V input voltage corresponds to the oil pump motor 200's stopped state. The controller 430 can output a voltage signal of corresponding amplitude to the inverter based on system preset parameters or external commands. The inverter can then adjust its output frequency according to this signal, driving the oil pump motor 200 to operate at the required speed. Furthermore, depending on the application scenario, the controller 430 can also adopt a fieldbus communication control method. The controller 430 establishes a communication connection with the frequency converter through any industrial fieldbus such as RS485, Modbus-RTU, Profinet, or CANopen, and directly sends digital frequency setting commands to the frequency converter, thus eliminating the need for additional analog wiring. The communication control method has stronger anti-interference capabilities, higher control accuracy, and can simultaneously read the frequency converter's operating current, voltage, frequency, fault codes, and other status information, achieving more comprehensive system monitoring.

[0032] like Figure 3As shown, an embodiment of this application provides a method for unloading wet and sticky materials. This method is applied to control the above-mentioned wet and sticky material unloading system and includes steps S100 to S400. Step S100: Acquire the current data collected by the current detection unit 410 and the operating vibration data collected by the vibration detection unit 420; Step S200: Determine the amplitude of the dominant frequency of the running vibration data; Step S300: Determine the vibration judgment factors based on the amplitude of the main operating frequency. The amplitude of the main operating frequency is positively correlated with the vibration judgment factors. Step S400: When the current data is greater than or equal to the preset current threshold, the vibration judgment factor is greater than or equal to the preset vibration threshold, and the duration is greater than or equal to the threshold time, the unloading speed in the self-unloading program is increased, the first duration is extended, and the second duration is shortened. The self-unloading process includes: The oil pump motor 200 is controlled to accelerate from its base speed to the descrambling speed within the third time period; Control the oil pump motor 200 to run at the unloading speed for the first duration; Control the oil pump motor 200 to decelerate to its base speed within the fourth time period; Control the oil pump motor 200 to run at the base speed for the second duration.

[0033] The wet and sticky material removal method in this application embodiment can be applied to the controller 430.

[0034] The wet and sticky material removal method in this embodiment is based on the aforementioned wet and sticky material removal system. Traditional manual cleaning or complete brush replacement methods for cleaning wet and sticky materials on the bristles of the side sweeper 100 have drawbacks such as affecting overall work efficiency, threatening worker safety, and high costs. In this embodiment, the current data of the oil pump motor 200 is collected by the current detection unit 410, and the operating vibration data of the side sweeper 100 is collected by the vibration detection unit 420. The collected current data and operating vibration data are transmitted to the controller 430 to determine the main frequency amplitude of the operating vibration data. The speed of the oil pump motor 200 is then controlled by the frequency converter. This causes the bristles on the side sweeper 100 connected to the oil pump motor 200 to be flung off the adhered wet and sticky material under centrifugal force, thus achieving efficient brush cleaning without stopping the machine.

[0035] The above current data is obtained by collecting the sliding average value of the current signal of the motor input phase line at a certain sampling frequency within a specified time.

[0036] The above-mentioned operational vibration data is obtained by collecting multiple discrete acceleration values ​​within a specified time and at a certain sampling frequency.

[0037] The aforementioned current detection unit 410 and vibration detection unit 420 synchronously collect current data of the oil pump motor 200 during operation and vibration data of the side sweeping device 100 during operation, and process the acquired current data and vibration data to complete the synchronous judgment operation. When the side sweeper 100 is running, the bristles not only come into contact with the materials to be cleaned inside the train car, but also come into contact with local protrusions such as reinforcing ribs, welds, and bolts on the interior walls of the train car. These factors increase the friction of the bristles when the side sweeper 100 is running, which in turn increases the current of the oil pump motor 200. This frequently triggers the self-cleaning program that is only implemented by the current sensor. In other words, the self-cleaning method of the side sweeper 100 triggered by the current threshold alone will lead to unnecessary efficiency loss, waste of resources and reduced efficiency. Furthermore, the side sweeper 100 will also generate instantaneous impacts when passing through local protrusions such as reinforcing ribs, welds, and bolts during operation. The vibration sensor will capture high-frequency, high-amplitude vibration signals, and the vibration characteristics of these vibration signals are somewhat similar to the vibration characteristics generated by sticky materials adhering to the bristles. This will also frequently trigger the self-cleaning program that is implemented by the vibration sensor, resulting in unnecessary self-cleaning. In this embodiment, the current detection unit 410 and the vibration detection unit 420 are used to synchronously collect relevant current data and vibration data, and the self-unloading program is triggered based on the collected current data and vibration data. That is, under normal operation, it is only determined to be true material sticking when both signals exceed their respective thresholds. This can effectively distinguish between true material sticking and interference from the carriage structure to a large extent, and improve the triggering accuracy of self-unloading.

[0038] The aforementioned operating main frequency amplitude (A_current) is obtained by performing a Fourier transform on the operating vibration data (i.e., the vibration acceleration signal), and is the peak amplitude of the spectrum extracted within the frequency range near the theoretical rotation main frequency. In this embodiment, the Cooley-Tukey radix-2 Fast Fourier Transform (FFT) algorithm is used to convert the time-domain signal into the frequency domain, thereby extracting the characteristic frequencies and amplitudes of the brush rotation, achieving accurate judgment of the brush motion state. The computational complexity of this algorithm is O(Nlog2N), where N is the sampling frequency of the vibration detection unit 420, and the Fourier transform algorithm formula is: X[k] ; Where a[n] is the time-domain acceleration sample value (n is the sampling point number, and its value range is 0-N-1); X[k] is the frequency-domain complex result (k is the frequency number); and j is the imaginary unit. The above Fourier transform is implemented using Fast Fourier Transform (FFT) in the controller 430, which can obtain the calculation result more quickly while maintaining the same result. In the above Fourier transform formula, N complex numbers X[k] will be output, based on the relationship between each complex number X[k] and the sampling frequency. The amplitude spectrum A[k] and frequency resolution can be calculated separately. The specific formula is as follows: A[k]=2 / N; ; In other words, the frequency interval between two adjacent spectral lines in the spectrum can be understood as the frequency resolution. The frequency corresponding to the Kth spectral line is k·Δfk·ΔfHz.

[0039] Then extract the main frequency of the brush bristles connected to the oil pump motor 200, that is, f0 = (motor speed / 60) × number of brush bristle rows.

[0040] The vibration judgment factor V mentioned above is the ratio of the operating dominant frequency amplitude (A_current) to the no-load dominant frequency amplitude (A_idle). The operating dominant frequency amplitude can be obtained by performing a Fourier transform on the operating vibration data (i.e., the vibration acceleration signal). The no-load dominant frequency amplitude is a reference value automatically measured and stored by the controller 430 when the side scan device 100 is idling. This calibration process is performed after the initial debugging of the equipment or after the replacement of key components and is stored in the controller 430. The formula for obtaining the vibration judgment factor V is: V = A_current / A_idle; The above-mentioned self-unloading program is the default program for the controller 430 to control the speed of the oil pump motor 200. When the controller 430 detects that the received current data and vibration data meet certain conditions, it will make certain adjustments to the speed and running time of the oil pump motor 200 based on the self-unloading program to meet the unloading requirements. A state machine is set inside the controller 430, and the state machine contains four states: uniform cleaning, speed increase, high speed maintenance, and speed decrease. In the self-unloading program, the state machine will automatically switch according to preset time parameters. The controller 430 calculates the target speed that should be output in real time and converts it into an analog voltage or communication frequency value that needs to be output to the frequency converter. Preferably, in this embodiment, the controller 430 controls the oil pump motor 200 to run in the following sequence according to the self-unloading program: First, after starting the oil pump motor 200, the controller controls the oil pump motor 200 to run at a uniform speed at the base speed; after reaching the second time period, the speed of the oil pump motor 200 is linearly increased to the unloading speed in the third time period; after reaching the third time period, the controller controls the oil pump motor 200 to run at a uniform speed at the unloading speed; after reaching the first time period, the speed of the oil pump motor 200 is linearly decreased to the base speed in the fourth time period, and the operation is repeated in this sequence.

[0041] The aforementioned basic speed is the basic operating speed of the oil pump motor 200 after the controller 430 starts the oil pump motor 200.

[0042] The aforementioned unloading speed is the speed at which the controller 430 controls the oil pump motor 200 to perform the unloading operation.

[0043] The first duration is the duration during which the oil pump motor 200 operates at the unloading speed. The second duration is the duration during which the oil pump motor 200 operates at the base speed after completing the deceleration operation, reaches the uniform cleaning state, and then runs at the base speed during the next acceleration operation. The third duration is the duration during which the oil pump motor 200 accelerates from the base speed to the unloading speed. The fourth duration is the duration during which the oil pump motor 200 decelerates from the unloading speed back to the base speed. The sum of the first, second, third, and fourth durations constitutes one cycle of the self-unloading program.

[0044] The aforementioned process of increasing the unloading speed, extending the first duration, and shortening the second duration in the self-unloading program serves the core function of adjusting the operation of the oil pump motor 200 to obtain stronger centrifugal force and more frequent impacts after the controller 430 determines that there is indeed material stuck to the brush bristles on the oil pump motor 200, thereby achieving effective unloading of the brush bristles. Furthermore, after the oil pump motor 200 runs one cycle according to the adjusted self-unloading program, if the current data and vibration judgment factors no longer meet the relevant judgment criteria in step S400, the relevant parameters in the self-unloading program are adjusted back to their original default state; if the current data and vibration judgment factors still meet the relevant judgment criteria in step S400, the adjusted self-unloading program continues to execute for one cycle; if, after running two consecutive cycles of the adjusted self-unloading program, the current data and vibration judgment factors still meet the relevant judgment criteria in step S400, the controller 430 issues an alarm to the relevant operators.

[0045] The aforementioned controller 430 uses a time-linear interpolation method to generate a linear ramp for the acceleration and deceleration of the oil pump motor 200, thereby redetermining the speed of the oil pump motor 200 after the acceleration process for the unloading speed. Specifically, firstly, the time interval Tcyc (in milliseconds) between the two speed determinations is determined based on the relevant parameters of the controller 430. The formula for confirming the newly obtained unloading speed during the acceleration process is as follows: N(t) = N0 + (N1 - N0) × (t / T_up); Where t represents the time elapsed since the start of acceleration, and the value of t is 0 ≤ t ≤ T_up, where T_up is the third time interval. N0 is the base rotational speed, N1 is the unloading rotational speed, and N(t) is the rotational speed of the oil pump motor 200 at any time point t during the acceleration process. The same principle applies to deceleration; the relevant formulas are as follows: N(t)=N1-(N1-N0)×(t / T_down); T_down is the fourth duration. The controller 430 sends new frequency commands sequentially through high-speed analog output or communication, so that the speed of the oil pump motor 200 changes smoothly and avoids current surges.

[0046] In some implementations, the vibration judgment factors determined based on the amplitude of the dominant operating frequency include: Obtain the no-load vibration data of the oil pump motor 200 under no-load conditions; Determine the no-load dominant frequency amplitude of the no-load vibration data; The ratio of the operating main frequency amplitude to the no-load main frequency amplitude is recorded as the vibration judgment factor.

[0047] In this embodiment, the no-load vibration data of the oil pump motor 200 when it is unloaded is obtained by a vibration sensor, and the obtained no-load vibration data is then subjected to Fourier transform to obtain the no-load main frequency amplitude. The Fourier transform formula and method used are the same as those described above. The no-load main frequency amplitude can be used as a constant parameter for determining the vibration judgment factor, thereby making the controller 430's related processing of vibration data more accurate and detailed.

[0048] In some embodiments, the method for removing wet, sticky materials further includes: The control oil pump motor 200 is to run idle for the fifth time period; Acquire the idle current data collected by the current detection unit 410 and the idle vibration data collected by the vibration detection unit 420; Determine the amplitude of the dominant frequency of the idling vibration data; The operating status of the vibration detection unit 420 is determined based on the amplitude of the idling main frequency; The operating status of the current detection unit 410 is determined based on the idling current data.

[0049] In this embodiment, the operating status of the vibration detection unit 420 and the current detection unit 410 is first determined based on the obtained idle main frequency amplitude and idle current data, which can help staff quickly locate the fault and complete the replacement or calibration of the sensor.

[0050] The aforementioned control oil pump motor 200 is to run idle for a fifth period of time. The fifth period of time is the time length set by the relevant personnel. Idle operation means that after the side sweeping device 100 is started and before the side sweeping device 100 cleans the inner wall of the train car, the controller 430 controls the oil pump motor 200 to run under the same conditions as when the oil pump motor 200 is running idle.

[0051] The operating status of the vibration detection unit 420 and the current detection unit 410 is determined based on the idle frequency amplitude and idle current data, including sensor accuracy abnormalities and sensor failures. Each time the wet, sticky material dewatering system is started, the oil pump motor 200 is first controlled to idle for five hours. During this period, the idle current data I_idle_test and the idle frequency amplitude A_idle_test acquired by the current detection unit 410 are obtained. These data are compared with the no-load current data I_idle and the no-load frequency amplitude A_idle stored in the controller 430. If the error between the two exceeds a certain range three times consecutively, the sensor exceeding the range is marked as "accuracy abnormal," and the controller 430 feeds this information back to relevant personnel and prompts for calibration. During the operation of the wet and sticky material dewatering system, current data and operating vibration data are also acquired in real time. If the rate of change of the acquired current data exceeds the set value within a certain period of time, or if the acquired operating vibration data remains constant at the base value within a certain period of time, the sensor with the abnormal state is marked as "failed". The controller 430 feeds this information back to the relevant personnel and prompts them to replace the sensor.

[0052] In some embodiments, the method for descrambling wet, sticky materials further includes: In the event of failure of the current detection unit 410, if the vibration judgment factor is greater than or equal to the preset vibration threshold and the duration is greater than or equal to the threshold time, the unloading speed in the self-unloading program is increased, the first duration is extended, and the second duration is shortened. In the event of a failure of the vibration detection unit 420, if the current data is greater than or equal to the preset current threshold and the duration is greater than or equal to the threshold time, the unloading speed in the self-unloading program is increased, the first duration is extended, and the second duration is shortened.

[0053] In this embodiment, by making relevant adjustments to the self-unloading program in the event of failure of the current sensor or vibration sensor, the reliability and redundancy of the wet and sticky material unloading system can be greatly improved, ensuring that the wet and sticky material unloading system can still maintain a basic unloading effect even if the sensor fails.

[0054] If the current detection unit 410 fails while the vibration detection unit 420 is effective, the vibration judgment factor is used alone for judgment, and the preset judgment threshold is lowered to a certain extent.

[0055] If the vibration detection unit 420 fails while the current detection unit 410 is effective, the current data is used alone for judgment, and the preset current threshold is adjusted upward to a certain extent.

[0056] If both the current detection unit 410 and the vibration detection unit fail, in addition to increasing the unloading speed, extending the first duration, and shortening the second duration in the self-unloading program, the controller 430 will also feed this information back to relevant personnel and prompt them to perform maintenance as soon as possible. Furthermore, after several consecutive speed-up operations, if the controller 430 still determines that it is necessary to continue to increase the speed of the oil pump motor 200 without the support of sensor data, it will force the controller 430 to control the oil pump motor 200 to decelerate to idle speed and illuminate the corresponding warning light to request personnel intervention.

[0057] In some embodiments, the method for descrambling wet, sticky materials further includes: If the current data is less than the preset current threshold and the vibration judgment factor is less than the preset vibration threshold, the unloading speed, first duration, and second duration will be restored to their initial values.

[0058] In this embodiment, after determining that the current data and vibration judgment factors meet the corresponding threshold standards, the relevant parameters in the self-deloading program are restored to their initial values. This can prevent the wet and sticky material deloading system from overloading unnecessarily, thereby improving the overall lifespan of the system while saving energy.

[0059] In some embodiments, the method for descrambling wet, sticky materials further includes: In the event of a failure of the vibration detection unit 420, the oil pump motor 200 is controlled to increase its speed. After three speed-up processes, and with the vibration detection unit 420 resuming operation, the wet and sticky material desiccation method continues to run.

[0060] In this embodiment, if the vibration signal fed back by the vibration detection unit 420 is consistently zero, the controller 430 sends an active excitation to the oil pump motor 200 at regular intervals. This briefly increases the speed of the oil pump motor 200 to several times its base speed, thereby using the mechanical impact of the oil pump motor 200 to activate the sensitive element of the vibration sensor, which may be stuck. If the signal from the vibration detection unit 420 recovers after three active excitations, the "failure" mark is automatically cleared, and a corresponding record is made in the controller 430's work log. Through this method, when the vibration sensor temporarily fails, the wet and sticky material dewatering system can automatically troubleshoot the problem, thus improving overall operating efficiency.

[0061] One embodiment of this application provides a wet and sticky material dewatering device, which is used to control the aforementioned wet and sticky material dewatering system, and includes: The data collection module is used to acquire current data collected by the current detection unit 410 and operating vibration data collected by the vibration detection unit 420. The dominant frequency amplitude determination module is used to determine the dominant frequency amplitude of the running vibration data. The vibration judgment factor determination module is used to determine the vibration judgment factors based on the amplitude of the main operating frequency. The amplitude of the main operating frequency is positively correlated with the vibration judgment factors. The unloading execution module is used to speed up the unloading speed, extend the first duration, and shorten the second duration in the self-unloading program when the current data is greater than or equal to the preset current threshold and the duration is greater than or equal to the threshold time, and the vibration judgment factor is greater than or equal to the preset vibration threshold and the duration is greater than or equal to the threshold time. The self-unloading process includes: The oil pump motor 200 is controlled to accelerate from its base speed to the descrambling speed within the third time period; Control the oil pump motor 200 to run at the unloading speed for the first duration; Control the oil pump motor 200 to decelerate to its base speed within the fourth time period; Control the oil pump motor 200 to run at the base speed for the second duration.

[0062] The wet and sticky material removal device in this application embodiment is based on the above-mentioned wet and sticky material removal method. When cleaning the wet and sticky material on the bristles of the side sweeper 100, the traditional manual cleaning or bristle replacement method has the disadvantages of affecting the overall work efficiency, threatening the safety of the workers, and high cost. In this embodiment, the data collection module collects the current data of the oil pump motor 200 through the current detection unit 410 and the operating vibration data of the side sweeper 100 through the vibration detection unit 420. After transmitting the collected current data and operating vibration data to the controller 430, the operating main frequency amplitude of the operating vibration data is determined by the main frequency amplitude determination module. Then, the vibration judgment factor determination module determines the vibration judgment factor based on the operating main frequency amplitude. When the current data and the vibration judgment factor meet the relevant conditions, the material removal execution module controls the speed of the oil pump motor 200 through the frequency converter. This causes the bristles on the side sweeper 100 connected to the oil pump motor 200 to remove the adhering wet and sticky material under the action of centrifugal force, thereby achieving efficient cleaning of the bristles without stopping the machine.

[0063] This application also provides an electronic device, including: a processor and a memory storing a computer program; When the processor executes the computer program, it implements the wet and sticky material descrambling method described above. The electronic device provided in this application embodiment can implement each process of the above-described wet and sticky material descrambling method embodiment and achieve the same beneficial effects. To avoid repetition, it will not be described again here.

[0064] This application also provides a computer-readable storage medium storing computer-executable instructions that are executed by a processor or control module, causing the processor to perform the wet and sticky material removal method in the above embodiments, for example, to perform the method described above.

[0065] It should be clarified that this application is not limited to the specific configurations and processes described above and shown in the figures. For the sake of brevity, detailed descriptions of known methods are omitted here. In the above embodiments, several specific steps are described and shown as examples. However, the method process of this application is not limited to the specific steps described and shown. Those skilled in the art can make various changes, modifications, and additions, or change the order of steps, after understanding the spirit of this application.

[0066] The functional blocks shown in the above structural diagram can be implemented as hardware, software, firmware, or a combination thereof. When implemented in hardware, they can be, for example, electronic circuits, application-specific integrated circuits (ASICs), appropriate firmware, plug-ins, function cards, etc. When implemented in software, the elements of this application are programs or code segments used to perform the required tasks. The programs or code segments can be stored on a machine-readable medium or transmitted over a transmission medium or communication link via data signals carried on a carrier wave. "Machine-readable medium" can include any medium capable of storing or transmitting information. Examples of machine-readable media include electronic circuits, semiconductor memory devices, ROM, flash memory, erasable ROM, floppy disks, CD-ROMs, optical disks, hard disks, fiber optic media, radio frequency links, etc. Code segments can be downloaded via computer networks such as the Internet, intranets, etc.

[0067] It should also be noted that the exemplary embodiments mentioned in this application describe methods or systems based on a series of steps or apparatus. However, this application is not limited to the order of the above steps; that is, the steps can be performed in the order mentioned in the embodiments, or in a different order, or several steps can be performed simultaneously.

[0068] The aspects of this disclosure have been described above with reference to flowchart illustrations and / or block diagrams of methods, apparatus, and computer program products according to embodiments of this disclosure. It should be understood that each block in the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, or other programmable data processing apparatus to produce a machine such that these instructions, executable via the processor of the computer or other programmable data processing apparatus, enable the implementation of the functions / actions specified in one or more blocks of the flowchart illustrations and / or block diagrams. Such a processor can be a general-purpose processor, a special-purpose processor, a special application processor, or a field-programmable logic circuit. It is also understood that each block in the block diagrams and / or flowcharts, and combinations of blocks in the block diagrams and / or flowcharts, can also be implemented by special-purpose hardware performing the specified functions or actions, or can be implemented by a combination of special-purpose hardware and computer instructions.

[0069] The above are merely specific embodiments of this application. Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the specific working processes of the systems, modules, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here. It should be understood that the protection scope of this application is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in this application, and these modifications or substitutions should all be covered within the protection scope of this application.

Claims

1. A method for desizing wet, sticky materials, characterized in that, This system is applied to a wet and sticky material desiccant system. The wet and sticky material desiccant system is used to desiccate materials for a side sweeping device, which has bristles fixed on it. The side sweeping device is driven by an oil pump motor to rotate the bristles, and the oil pump motor speed is adjusted by a frequency converter. The wet and sticky material descrambling system includes a current detection unit, a vibration detection unit, and a controller. The current detection unit is used to detect the current data of the oil pump motor; the vibration detection unit is used to detect the vibration data of the side sweeping device; the controller is electrically connected to the current detection unit, the vibration detection unit, and the frequency converter, and is used to control the speed of the oil pump motor through the frequency converter based on the current data and the vibration data. The method for desizing wet, sticky materials includes: Acquire current data collected by the current detection unit and operational vibration data collected by the vibration detection unit; Determine the amplitude of the dominant frequency of the operational vibration data; Vibration judgment factors are determined based on the amplitude of the operating main frequency, and the amplitude of the operating main frequency is positively correlated with the vibration judgment factors; When the current data is greater than or equal to a preset current threshold, the vibration judgment factor is greater than or equal to a preset vibration threshold, and the duration is greater than or equal to the threshold time, the unloading speed in the self-unloading program is increased, the first duration is extended, and the second duration is shortened. The self-deloading process includes: The oil pump motor is controlled to accelerate from its base speed to the material removal speed within a third time period; The oil pump motor is controlled to run at the discharge speed for the first duration; The oil pump motor is controlled to decelerate to the base speed within a fourth time period; The oil pump motor is controlled to run at the base speed for the second duration.

2. The method for desizing wet, sticky materials according to claim 1, characterized in that, The process of determining vibration judgment factors based on the amplitude of the dominant operating frequency includes: Obtain the no-load vibration data of the oil pump motor when it is unloaded; Determine the no-load dominant frequency amplitude value of the no-load vibration data; The ratio of the operating main frequency amplitude to the no-load main frequency amplitude is denoted as the vibration judgment factor.

3. The method for desizing wet, sticky materials according to claim 1, characterized in that, The method for desizing wet, sticky materials also includes: The oil pump motor is controlled to run idle for the fifth time period; Acquire the idle current data collected by the current detection unit and the idle vibration data collected by the vibration detection unit; Determine the amplitude of the dominant idling frequency of the idling vibration data; The operating status of the vibration detection unit is determined based on the amplitude of the idle main frequency. The operating status of the current detection unit is determined based on the idle current data.

4. The method for desizing wet, sticky materials according to claim 3, characterized in that, Also includes: In the event of failure of the current detection unit, and in the event that the vibration judgment factor is greater than or equal to the preset vibration threshold and the duration is greater than or equal to the threshold time, the unloading speed in the self-unloading program is increased, the first duration is extended, and the second duration is shortened. In the event of failure of the vibration detection unit, and when the current data is greater than or equal to a preset current threshold and the duration is greater than or equal to the threshold time, the unloading speed in the self-unloading program is increased, the first duration is extended, and the second duration is shortened.

5. The method for desizing wet, sticky materials according to claim 4, characterized in that, Also includes: If the current data is less than the preset current threshold and the vibration judgment factor is less than the preset vibration threshold, the unloading speed, the first duration, and the second duration are restored to their initial values.

6. The method for desizing wet, sticky materials according to claim 5, characterized in that, Also includes: In the event of failure of the vibration detection unit, the oil pump motor is controlled to increase its speed. After three speed-up processes, the wet and sticky material descrambling method continues to operate once the vibration detection unit resumes operation.

7. A device for unloading wet, sticky materials, characterized in that, The wet viscous material desiccant device, applied to the wet viscous material desiccant method as described in claim 1, comprises: The data collection module is used to acquire current data collected by the current detection unit and operational vibration data collected by the vibration detection unit. The dominant frequency amplitude determination module is used to determine the dominant frequency amplitude of the operating vibration data; The vibration judgment factor determination module is used to determine the vibration judgment factor based on the operating main frequency amplitude, wherein the operating main frequency amplitude is positively correlated with the vibration judgment factor. The unloading execution module is used to speed up the unloading speed in the self-unloading program, extend the first duration, and shorten the second duration when the current data is greater than or equal to a preset current threshold, the vibration judgment factor is greater than or equal to a preset vibration threshold, and the duration is greater than or equal to the threshold time. The self-deloading process includes: The oil pump motor is controlled to accelerate from its base speed to the descrambling speed within a third time period; The oil pump motor is controlled to run at the discharge speed for the first duration; The oil pump motor is controlled to decelerate to the base speed within a fourth time period; The oil pump motor is controlled to run at the base speed for the second duration.

8. An electronic device, characterized in that, The electronic device includes a processor and a memory storing computer programs; The computer program executed by the processor is to implement the wet, sticky material desiccation method as described in any one of claims 1 to 6.

9. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores computer-executable instructions for causing a computer to perform the wet, sticky material removal method as described in any one of claims 1 to 6; the computer-readable storage medium is used in the electronic device as described in claim 8.

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