State detection method, system and equipment based on Rogowski coil and storage medium

Abstract

The invention provides a state detection method, system and device based on a Rogowski coil and a storage medium, and relates to the technical field of environmental sanitation instrument detection. The method can be applied to an environmental sanitation instrument, a three-phase high-voltage motor is arranged in the environmental sanitation instrument, and the method comprises the following steps: acquiring a voltage signal of a first phase based on a Rogowski coil mounted on an electric wire of the first phase of the three-phase high-voltage motor; wherein the first phase is any phase of the three-phase high-voltage motor; performing data processing on the voltage signal to obtain target data; and sending the target data to a management system to display the operation state of the environmental sanitation instrument. The method can improve the efficiency of displaying the real state of the environmental sanitation instrument.

Description

Technical Field

[0001] This application relates to the technical field of sanitation equipment detection, and particularly relates to a status detection method, system, device and storage medium based on a Rogowski coil. Background Art

[0002] At present, with the rapid economic development, while people's quality of life has improved, their requirements for the living environment are getting higher and higher, which is inseparable from the sanitation industry. The operating equipment in the sanitation industry is becoming more and more modern and electrified. For example, electric street sweepers and electric high-pressure cleaning vehicles have been added to the scope of sanitation operations. The operation status of these vehicle systems requires high-power high-voltage motors to drive. As the management party of the operation quality, it is necessary to monitor the operation status to ensure the operation quality and then display the real operation status. In the prior art, due to various reasons such as data collection, processing, and transmission, it is easy to cause the problem of low efficiency in displaying the real status of sanitation equipment. Summary of the Invention

[0003] This application provides a status detection method, system, device and storage medium based on a Rogowski coil, which can improve the efficiency of displaying the real status of sanitation equipment.

[0004] In a first aspect, an embodiment of this application provides a status detection method based on a Rogowski coil, which can be applied to sanitation equipment, and a three-phase high-voltage motor is provided in the sanitation equipment; The method may include: Obtaining a voltage signal of a first phase based on a Rogowski coil installed on a wire of the first phase of the three-phase high-voltage motor; wherein, the first phase is any phase of the three-phase high-voltage motor; performing data processing on the voltage signal to obtain target data; and sending the target data to a management system to display the operation status of the sanitation equipment.

[0005] In the above implementation, through the Rogowski coil installed on the wire of the first phase of the three-phase high-voltage motor, a voltage signal that can reflect the power output status of the motor most appropriately when the three-phase alternating current is flowing and stable in time can be obtained. By obtaining this voltage signal and performing corresponding data processing, the working status of the sanitation equipment can be more directly reflected, thereby improving the efficiency of displaying the real status of the sanitation equipment.

[0006] In some embodiments, the performing data processing on the voltage signal to obtain target data may include: Performing digital-to-analog conversion on the voltage signal to obtain a digital signal corresponding to the voltage signal; performing integral operation on the digital signal to obtain current waveform data of the three-phase high-voltage motor; and performing data encapsulation on the current waveform data to obtain the target data.

[0007] In the above implementation, by means of technical means such as digital-to-analog conversion, integral operation, and data encapsulation, the voltage signal obtained by the Rogowski coil is processed, which can improve the accuracy of the target data and enable the target data to more intuitively display the working state information of the three-phase high-voltage motor.

[0008] In some embodiments, the sending the target data to the management system to display the working state of the sanitation equipment may include: Calculating the state data of the three-phase high-voltage motor based on the target data and displaying the state data.

[0009] In some embodiments, the state data includes at least one of the load condition of the three-phase high-voltage motor, the working efficiency of the three-phase high-voltage motor, the fault warning condition of the three-phase high-voltage motor, and the energy consumption management condition of the three-phase high-voltage motor.

[0010] In some embodiments, the first phase may be the U phase of the three-phase high-voltage motor.

[0011] In a second aspect, an embodiment of the present application provides a state detection system based on a Rogowski coil, which can be applied to sanitation equipment, and a three-phase high-voltage motor is provided in the sanitation equipment. The system may include: A signal acquisition module, configured to acquire a voltage signal of the first phase based on a Rogowski coil installed on a wire of the first phase of the three-phase high-voltage motor; wherein, the first phase is any phase of the three-phase high-voltage motor; A data processing module, configured to perform data processing on the voltage signal to obtain target data; A data transmission module, configured to send the target data to the management system to display the working state of the sanitation equipment.

[0012] In a third aspect, an embodiment of the present application provides a computer device, which includes a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the computer program, the method described in the above description is implemented.

[0013] In a fourth aspect, an embodiment of the present application further provides a computer-readable storage medium, and the computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the muscle function evaluation method described in the above description is implemented.

[0014] Compared with the prior art, the beneficial effects of the present application are as follows: By means of the Rogowski coil installed on the wire of the first phase of the three-phase high-voltage motor, a voltage signal that can stably reflect the power output state of the motor most appropriately when the three-phase alternating current flows can be obtained. By acquiring this voltage signal and performing corresponding data processing, the working state of the sanitation equipment can be more directly reflected, thereby improving the efficiency of presenting the true state of the sanitation equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the steps of the state detection method based on the Rogowski coil provided by the embodiment of the present application.

[0016] Figure 2 It is a schematic diagram of the installation circuit of the Rogowski coil provided by the embodiment of the present application.

[0017] Figure 3 It is a schematic diagram of the state detection system based on the Rogowski coil provided by the embodiment of the present application. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] The present application will be further described in detail below in combination with test examples and specific embodiments. However, it should not be understood that the scope of the above-mentioned subject matter of the present application is limited to the following embodiments. All technologies implemented based on the content of the present application belong to the scope of protection of the present application.

[0019] In the description of the specific embodiments of the present application, without special explanation, the expression terms indicating the orientation or positional relationship such as "upper", "lower", "left", "right", "center", "inner", "outer", "side", etc. are all based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship when the product / equipment / device is usually used and placed. These terms of orientation or positional relationship are only for the convenience of describing the solution of the present application or simplifying the description in the specific embodiments, so as to facilitate technicians to quickly understand the solution, rather than indicating or implying that a specific device / component / element must have a specific orientation or be constructed and operated in a specific positional relationship. Therefore, it should not be construed as a limitation to the present application.

[0020] In the description of the embodiments of the present application, the technical terms "first", "second", etc. are only used to distinguish one entity or operation from another entity or operation, and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the present application, the meaning of "a plurality" is two or more, unless otherwise specifically defined.

[0021] References to "embodiments" in this specification mean that the particular features, structures, or characteristics described in connection with the embodiments can be included in at least one embodiment of the present application. The phrase appears in various places in the specification and does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art will explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments.

[0022] During the research process, the applicant found that to display the real working state of sanitation equipment, it is necessary to install a sensing source on the sanitation equipment during operation to feedback the working state information. The signal is reported to the platform through the Internet of Things transmission device by the hardware device, and is displayed on the intelligent management platform through software algorithms to guide and supervise, so as to improve the working quality and work efficiency. The key first step is to obtain real state data. In the actual test process of the applicant, it is found that using a Rogowski coil can simply and efficiently meet this requirement. Based on this, an embodiment of the present application provides a state detection method based on a Rogowski coil.

[0023] Embodiment 1 Please refer to Figure 1 , Figure 1 which is a schematic diagram of the steps of the state detection method based on a Rogowski coil provided by an embodiment of the present application. The state detection method based on a Rogowski coil may include: S1. Obtain a voltage signal of the first phase based on a Rogowski coil installed on the wire of the first phase of a three-phase high-voltage motor.

[0024] Wherein, the first phase is any phase of the three-phase high-voltage motor.

[0025] S2. Perform data processing on the voltage signal to obtain target data.

[0026] S3. Send the target data to the management system to display the working state of the sanitation equipment.

[0027] The above method can be applied to sanitation equipment, and a three-phase high-voltage motor is provided in the sanitation equipment. The sanitation equipment can be a high-pressure cleaning vehicle, a road sweeper, etc.

[0028] In the above implementation process, through the Rogowski coil installed on the wire of the first phase of the three-phase high-voltage motor, a voltage signal that can most feedback the power output state of the motor when the three-phase alternating current flows through and is stable in due course can be obtained. By obtaining this voltage signal and performing corresponding data processing, the working state of the sanitation equipment can be more directly feedback, thereby improving the efficiency of displaying the real state of the sanitation equipment.

[0029] Embodiment 2 This embodiment is the implementation process of data processing for the voltage signal in the above-mentioned Embodiment 1.

[0030] Data processing of the voltage signal to obtain target data may include: Performing digital-to-analog conversion on the voltage signal to obtain a digital signal corresponding to the voltage signal; performing integral operation on the digital signal to obtain current waveform data of the three-phase high-voltage motor; performing data encapsulation on the current waveform data to obtain target data.

[0031] Among them, a DC-DC power converter (Direct Current-Direct Current power converter) can be used to provide a stable working power supply for the Rogowski coil. When current passes through the wire, the Rogowski coil will induce a voltage signal based on Faraday's law of electromagnetic induction. This signal is proportional to the rate of change of the measured current, so it can reflect the instantaneous change of the current. The output voltage signal is usually a weak analog signal and needs to be processed and amplified subsequently. The voltage signal output by the Rogowski coil is connected and transmitted to the AI signal port of the in-vehicle DPU through a hard wire (such as a coaxial cable or a twisted pair).

[0032] In the embodiment of the present application, an in-vehicle DPU (Data Processing Unit) can be used to preprocess the voltage signal, such as signal amplification, filtering, etc., to improve the signal-to-noise ratio and accuracy of the signal. Inside the DPU, an analog-to-digital converter (Analog-to Digital Converter, ADC) converts the received analog voltage signal into a digital signal. During the conversion process, the ADC samples and quantizes the analog signal and converts it into a series of discrete digital values. These digital values represent the instantaneous state of the current change and provide a basis for subsequent data processing.

[0033] Since the Rogowski coil outputs a differential signal of current with respect to time, integral operation is required to restore the actual current waveform. The integral operation can be implemented through a software algorithm in the DPU or an integrator set in the sanitation equipment. After the integral operation, a digital signal similar to the original current waveform can be obtained. This signal can be used as actual current data for subsequent analysis and application after further processing and adjustment (such as filtering, amplification, etc.).

[0034] The integrated current data is further processed to meet the requirements of subsequent transmission and display. The processing process may include filtering, amplification, offset adjustment, etc. The processed data is encapsulated into a format suitable for wireless transmission. For example, the data is packed into a specific data packet structure, and necessary header information and check codes are added to ensure the integrity and accuracy of the data. The encapsulated data packet is the target data and can be transmitted through the 4G module in the DPU.

[0035] Exemplarily, the embodiments of the present application can display target data based on a smart management platform. The 4G module in the DPU is responsible for wirelessly transmitting the encapsulated data packets to the smart management platform. After the smart management platform receives and parses the data packets, it can store them in a database for subsequent display, so as to display the most real-time operation status of the sanitation equipment, which is conducive to the management and control of the sanitation equipment.

[0036] In the above implementation process, by using technical means such as digital-to-analog conversion, integral operation, and data encapsulation to process the voltage signal obtained by the Rogowski coil, the accuracy of the target data can be improved, so that the target data can more intuitively display the working status information of the three-phase high-voltage motor.

[0037] Embodiment 3 This embodiment is a specific implementation scheme for displaying the operation status of the sanitation equipment in the above Embodiment 1.

[0038] Sending the target data to the management system to display the operation status of the sanitation equipment may include: calculating the status data of the three-phase high-voltage motor based on the target data and displaying the status data.

[0039] Exemplarily, the status data of the three-phase high-voltage motor may include at least one of the load condition of the three-phase high-voltage motor, the working efficiency of the three-phase high-voltage motor, the fault warning condition of the three-phase high-voltage motor, and the energy consumption management condition of the three-phase high-voltage motor.

[0040] By monitoring the current waveform and value of the motor in the sanitation equipment, the load size of the motor can be judged. An excessive load may mean that the equipment is performing heavy tasks, such as cleaning a large amount of garbage or performing high-intensity cutting operations; while a small load may indicate that the equipment is idle or operating inefficiently.

[0041] By combining the current data and the working time of the sanitation equipment, its working efficiency can be calculated. For example, by comparing the current consumption in different time periods, the energy efficiency performance of the equipment under different working conditions can be evaluated.

[0042] By detecting abnormal fluctuations in the current data, the fault warning condition of the three-phase high-voltage motor can be characterized. For example, a sudden increase in current may mean that the motor is overloaded or there is a risk of short circuit; while continuous instability of the current may indicate problems with the power supply system or the motor controller. By real-time monitoring the current data, potential faults can be detected in advance and corresponding measures can be taken to avoid the failure of the sanitation equipment at critical moments.

[0043] By accurately measuring the current consumption in different working modes, a more reasonable energy consumption control strategy can be formulated to reduce the operating cost and the impact on the environment.

[0044] In addition, by analyzing the relationship between current data and the working efficiency of sanitation equipment, the performance of the equipment can also be optimized and adjusted. For example, by adjusting the working parameters of the motor or improving the transmission system, the current consumption can be reduced while maintaining the working efficiency, thereby improving the overall performance.

[0045] Example 4 This example is an actual application example of a Rogowski coil installed in the U phase of a three-phase high-voltage motor in Example 1.

[0046] In the embodiments of the present application, the Rogowski coil can be installed on the U-phase wire of the three-phase high-voltage motor. Please refer to Figure 2 , Figure 2 which is the schematic diagram of the installation circuit of the Rogowski coil provided by the embodiments of the present application.

[0047] In the power systems of some sanitation equipment, the U phase may be pre-configured as the main monitoring phase, or connected to specific protection devices, measuring instruments, etc. Therefore, installing the Rogowski coil on the U phase may be more compatible with the existing system, reducing additional configuration and debugging work.

[0048] In some working conditions of sanitation equipment, for cost considerations, it may only be necessary to select the wire of any one phase in the three phases for monitoring. If the U phase is considered to be the most representative or important phase, installing the Rogowski coil on the U phase can reduce the detection cost.

[0049] In addition, if there are multiple sanitation equipment in the system and it is necessary to compare and analyze the current data between them, then maintaining a consistent monitoring U-phase can help simplify the data analysis and interpretation process.

[0050] Example 5 Please refer to Figure 3 , Figure 3 which is the schematic diagram of the state detection system based on the Rogowski coil provided by the embodiments of the present application. The state detection system 30 based on the Rogowski coil can be applied to sanitation equipment, and a three-phase high-voltage motor is provided in the sanitation equipment. The system can include: A signal acquisition module 31, configured to acquire a voltage signal of the first phase based on a Rogowski coil installed on the wire of the first phase of the three-phase high-voltage motor; wherein, the first phase is any phase of the three-phase high-voltage motor.

[0051] A data processing module 32, configured to perform data processing on the voltage signal to obtain target data.

[0052] A data transmission module 33, configured to send the target data to the management system to display the operation status of the sanitation equipment.

[0053] Optionally, the data processing module 32 may specifically be configured to: Perform digital-to-analog conversion on the voltage signal to obtain a digital signal corresponding to the voltage signal; perform an integration operation on the digital signal to obtain the current waveform data of the three-phase high-voltage motor; and perform data encapsulation on the current waveform data to obtain the target data.

[0054] Optionally, the data transmission module 33 may specifically be configured to: calculate the state data of the three-phase high-voltage motor based on the target data and display the state data.

[0055] It should be understood that when each module of the state detection system based on Rogowski coils provided in the above embodiments is working, only the division of each functional module in the above description content is used for illustration. In practical applications, the above functions can be assigned to different functional modules according to needs, that is, the internal structure of the device can be divided into different functional modules to complete all or part of the functions described above.

[0056] Each functional module in the above embodiments may be integrated into a processing unit, or each unit may exist physically alone, or two or more units may be integrated into one unit. The above integrated unit may be implemented in the form of hardware or in the form of a software functional unit. In addition, the specific names of each functional unit and module are only for the convenience of mutual distinction and do not limit the protection scope of the embodiments of the present application.

[0057] Based on the same inventive concept, an embodiment of the present application further provides a computer device, which may include a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the computer program, the method described in the above description content is implemented.

[0058] Based on the same inventive concept, an embodiment of the present application further provides a computer-readable storage medium. The computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the method described in the above description content is implemented.

[0059] The above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application, and should all be included in the protection scope of the present application.

Claims

1. A state detection method based on Rogowski coil, characterized in that: Applicable to sanitation equipment, wherein the sanitation equipment is provided with a three-phase high-voltage motor; The method comprises: Acquire a voltage signal of a first phase based on a Rogowski coil installed on an electric wire of a first phase of the three-phase high-voltage motor; wherein the first phase is any phase of the three-phase high-voltage motor; Performing data processing on the voltage signal to obtain target data; The target data is sent to a management system to display the operating status of the sanitation equipment.

2. The method according to claim 1, characterized in that The step of performing data processing on the voltage signal to obtain target data includes: Performing digital-to-analog conversion on the voltage signal to obtain a digital signal corresponding to the voltage signal; Performing an integration operation on the digital signal to obtain current waveform data of the three-phase high-voltage motor; The current waveform data is data packaged to obtain the target data.

3. The method according to claim 1, characterized in that The sending of the target data to the management system to display the operating status of the sanitation equipment includes: The state data of the three-phase high-voltage motor is calculated based on the target data, and the state data is displayed.

4. The method according to claim 3, characterized in that: The status data includes at least one of the load condition of the three-phase high-voltage motor, the working efficiency of the three-phase high-voltage motor, the fault warning condition of the three-phase high-voltage motor, and the energy consumption management condition of the three-phase high-voltage motor.

5. The method according to any one of claims 1 to 4, characterized in that: The first phase is the U phase of the three-phase high-voltage motor.

6. A state detection system based on Rogowski coil, characterized in that: Applicable to sanitation equipment, wherein the sanitation equipment is provided with a three-phase high-voltage motor; The system comprises: A signal acquisition module, configured to acquire a voltage signal of a first phase based on a Rogowski coil installed on an electric wire of the first phase of the three-phase high-voltage motor; wherein the first phase is any phase of the three-phase high-voltage motor; A data processing module, used for performing data processing on the voltage signal to obtain target data; The data transmission module is used to send the target data to the management system to display the operating status of the sanitation equipment.

7. A computer device, characterized in that: The computer device comprises a memory, a processor, and a computer program stored in the memory and executable on the processor, and the processor implements the method according to any one of claims 1 to 5 when executing the computer program.

8. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the method according to any one of claims 1 to 5 is implemented.

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