Voltage and current over-limit alarm method and device based on rail transit industry equipment

Abstract

The invention provides a voltage and current over-limit alarm method and device based on rail transit industry equipment, and the method comprises the steps: obtaining transmission data transmitted by a plurality of pieces of rail transit equipment, and enabling the transmission protocols of the transmission data to be different; analyzing the transmission data according to a preset mapping point table to obtain a voltage signal and a current signal of each piece of rail transit equipment corresponding to the transmission data; preprocessing the voltage signal and the current signal to obtain a processed voltage signal and a processed current signal; comparing the processed voltage signal and the processed current signal with a preset voltage threshold value and a preset current threshold value respectively to obtain an early warning electric signal; early warning information is sent based on the early warning electric signal through an alarm circuit, and the early warning information is used for early warning that the rail transit equipment corresponding to the early warning electric signal has a fault; according to the invention, an alarm can be given out in time when the voltage or the current of the rail transit equipment exceeds the limit.

Description

Technical Field

[0001] The present invention relates to the technical field of urban rail transit, and in particular to a voltage and current over-limit alarm method and device based on rail transit industry equipment. Background Art

[0002] With the rapid development of rail transit, various types of equipment need to withstand complex electrical environments during operation. In order to ensure the safe operation of equipment and prevent equipment damage, fire and other safety accidents caused by voltage and current overlimit, it is particularly important to develop and apply voltage and current overlimit alarm technology.

[0003] The equipment maintenance and replacement in the related technology is delayed, that is, the equipment can only be repaired and replaced after the equipment fails and the maintenance personnel have found the fault; at the same time, no alarm information will be generated when the voltage and current of the equipment exceed the limit. Long-term voltage and current exceed the limit, which is not conducive to the health of the equipment and shortens the life of the equipment.

[0004] It can be seen that the voltage and current monitoring method of rail transit equipment in the related art has a technical problem of long lag. Summary of the invention

[0005] The present invention provides a voltage and current over-limit alarm method and device based on rail transit industry equipment, which is used to solve the defect of hysteresis in the voltage and current monitoring method of rail transit equipment in the prior art, and to timely issue an alarm when the voltage or current of the rail transit equipment exceeds the limit.

[0006] The present invention provides a voltage and current over-limit alarm method based on rail transit industry equipment, comprising the following steps. Acquire transmission data sent by multiple rail transit equipment, wherein the transmission protocols of the transmission data are different; parse the transmission data according to a preset mapping point table to obtain the voltage signal and current signal of each rail transit equipment corresponding to the transmission data; pre-process the voltage signal and the current signal to obtain a processed voltage signal and a processed current signal; compare the processed voltage signal and the processed current signal with a preset voltage threshold and a preset current threshold respectively to obtain an early warning electrical signal, wherein the early warning electrical signal includes an early warning voltage signal and an early warning current signal, the early warning voltage signal exceeds the preset voltage threshold, and the early warning current signal exceeds the preset current threshold; send early warning information based on the early warning electrical signal through an alarm circuit, wherein the early warning information is used to warn that the rail transit equipment corresponding to the early warning electrical signal has a fault.

[0007] According to a voltage and current over-limit alarm method based on rail transit industry equipment provided by the present invention, the acquisition of transmission data sent by multiple rail transit equipment includes: collecting data from multiple rail transit equipment based on a preset transmission protocol to obtain the transmission data sent by the multiple rail transit equipment, wherein the preset transmission protocol includes at least one of the following: transmission control protocol, user datagram protocol and MODBUS communication protocol.

[0008] According to a voltage and current over-limit alarm method based on rail transit industry equipment provided by the present invention, before parsing the transmission data according to a preset mapping point table to obtain the voltage signal and current signal of each rail transit equipment corresponding to the transmission data, the method also includes: obtaining a preset mapping point table, wherein the preset mapping point table is used to represent the mapping relationship between the transmission data and the voltage signal and current signal of each rail transit equipment among the multiple rail transit equipment.

[0009] According to a voltage and current over-limit alarm method based on rail transit industry equipment provided by the present invention, the voltage signal and the current signal are pre-processed to obtain a processed voltage signal and a processed current signal, including: filtering and analyzing the voltage signal and the current signal to obtain a processed voltage signal and a processed current signal.

[0010] According to a voltage and current over-limit alarm method based on rail transit industry equipment provided by the present invention, after preprocessing the voltage signal and the current signal to obtain the processed voltage signal and the processed current signal, the method further includes: performing statistics on the processed voltage signal and the processed current signal to obtain electrical signal data; performing abnormality prediction based on the electrical signal data through a preset health algorithm to obtain an abnormal electrical signal; and sending abnormal information based on the abnormal electrical signal through an alarm circuit, wherein the abnormal information is used to warn that the rail transit equipment corresponding to the abnormal electrical signal has a health abnormality.

[0011] According to a voltage and current over-limit alarm method based on rail transit industry equipment provided by the present invention, after the warning information is sent based on the warning electrical signal through the alarm circuit, the method also includes: when the warning voltage signal and the warning current signal in the warning electrical signal are lower than the preset voltage threshold and the preset current threshold, respectively, the warning information is eliminated.

[0012] The present invention also provides a voltage and current over-limit alarm device based on rail transit industry equipment, comprising the following modules: an acquisition module, used to acquire transmission data sent by multiple rail transit equipment, wherein the transmission protocols of the transmission data are different; a parsing module, used to parse the transmission data according to a preset mapping point table, and obtain the voltage signal and current signal of each rail transit equipment corresponding to the transmission data; a preprocessing module, used to preprocess the voltage signal and the current signal, and obtain a processed voltage signal and a processed current signal; a comparison module, used to compare the processed voltage signal and the processed current signal with a preset voltage threshold and a preset current threshold respectively, to obtain an early warning electrical signal, wherein the early warning electrical signal includes an early warning voltage signal and an early warning current signal, the early warning voltage signal exceeds the preset voltage threshold, and the early warning current signal exceeds the preset current threshold; a sending module, used to send early warning information based on the early warning electrical signal through an alarm circuit, wherein the early warning information is used to warn that there is a fault in the rail transit equipment corresponding to the early warning electrical signal.

[0013] The present invention also provides an electronic device, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein when the processor executes the program, the voltage and current over-limit alarm method based on rail transit industry equipment as described in any one of the above-mentioned methods is implemented.

[0014] The present invention also provides a non-transitory computer-readable storage medium on which a computer program is stored. When the computer program is executed by a processor, the voltage and current over-limit alarm method based on rail transit industry equipment as described in any of the above is implemented.

[0015] The present invention also provides a computer program product, including a computer program, which, when executed by a processor, implements any of the above-mentioned voltage and current over-limit alarm methods based on rail transit industry equipment.

[0016] The voltage and current over-limit alarm method and device based on rail transit industry equipment provided by the present invention obtain transmission data sent by multiple rail transit equipment with different transmission protocols, parse the transmission data according to a preset mapping point table, and obtain voltage signals and current signals corresponding to each rail transit equipment. Therefore, when the transmission protocols of each device are different, the voltage and current conditions corresponding to each device can be obtained; the voltage signal and the current signal are pre-processed to improve signal stability and accuracy, and a processed voltage signal and a processed current signal are obtained; based on the processed voltage signal and the processed current signal, the preset voltage threshold and the preset current threshold are compared respectively to obtain a warning electrical signal, and a warning information is sent based on the warning electrical signal through an alarm circuit. Therefore, when the voltage or current exceeds the preset threshold, an early warning can be triggered to remind the user to perform fault processing on the rail transit equipment corresponding to the early warning electrical signal; thereby solving the technical problem of long hysteresis in the voltage and current monitoring method of rail transit equipment in the related art. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced one by one below. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a flow chart of a voltage and current over-limit alarm method based on rail transit industry equipment provided by the present invention.

[0019] Figure 2 It is a schematic diagram of the process of predicting health anomalies of electrical signal data provided by the present invention.

[0020] Figure 3 It is a structural schematic diagram of a voltage and current over-limit alarm device based on rail transit industry equipment provided by the present invention.

[0021] Figure 4 It is a schematic diagram of the physical structure of the electronic device provided by the present invention. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the drawings of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] With the rapid development of urban rail transit systems, the safe operation of rail transit equipment has become the key to ensuring smooth public transportation and passenger safety. In rail transit systems, the voltage and current status of equipment is directly related to the operating efficiency and safety of the equipment. Therefore, it is particularly important to develop a technology that can monitor the voltage and current status of equipment in real time and promptly alarm when the limit is exceeded.

[0024] This technology is mainly based on sensor technology, signal processing technology and alarm control technology. By installing high-precision voltage sensors and current sensors at key parts of rail transit equipment, the voltage and current data of the equipment are collected in real time. Then, the collected data is processed and analyzed using advanced signal processing technology to determine whether the operating status of the equipment is normal. Once the voltage or current is found to exceed the preset safety range, the system will immediately trigger the alarm mechanism and remind relevant personnel to deal with it in time through sound and light alarms, remote notifications, etc.

[0025] With the rapid development of rail transit, various types of equipment need to withstand complex electrical environments during operation. In order to ensure the safe operation of equipment and prevent equipment damage, fire and other safety accidents caused by voltage and current overlimit, it is particularly important to develop and apply voltage and current overlimit alarm technology. In related technologies, the traditional boring management interface, especially information isolation and abstract presentation, also has the following defects: Equipment maintenance and replacement are delayed, that is, after the equipment fails, the maintenance personnel can repair or replace the equipment after troubleshooting.

[0026] When the equipment fails, an alarm message may not be generated after the voltage and current exceed the limit. Long-term voltage and current exceeding the limit is not conducive to the health of the equipment and shortens the life of the equipment.

[0027] A voltage and current over-limit alarm method based on rail transit industry equipment provided by the present invention mainly includes a signal processing part, an alarm part and an alarm prediction part.

[0028] Signal processing part: including signal amplification, filtering, comparison and other circuits, which processes the collected signal and compares it with the preset threshold.

[0029] Alarm part: includes monitoring system pop-up alarm, sound alarm, SMS notification, etc., which are used to issue alarms when voltage or current exceeds the limit.

[0030] Alarm prediction part: includes daily voltage and current monitoring of log equipment, and predicts the health and life of equipment through big data calculation and statistics.

[0031] refer to Figure 1 , Figure 1It is a flow chart of the voltage and current over-limit alarm method based on rail transit industry equipment provided by the present invention, such as Figure 1 As shown, the method includes the following: Step 101 : acquiring transmission data sent by a plurality of rail transit devices, wherein the transmission protocols of the transmission data are different.

[0032] In the embodiment of the present invention, there are many devices in the rail transit industry, each device supports a different data transmission protocol, and the format of sending data is also different.

[0033] For example, data transmission protocols include Transmission Control Protocol (TCP), User Datagram Protocol (UDP), and MODBUS communication protocol.

[0034] Step 102: parse the transmission data according to a preset mapping point table to obtain a voltage signal and a current signal of each rail transit device corresponding to the transmission data.

[0035] In the embodiment of the present invention, a transmission protocol such as TCP, UDP, MODBUS, etc. adapted to the device transmission is compiled according to the instructions provided by the device manufacturer to collect device data information. The collected data is then parsed out according to a preset mapping point table (for example, a field point table provided by the manufacturer) to obtain the voltage and current values ​​corresponding to each device, and provide a basis for data processing.

[0036] Step 103 , preprocessing the voltage signal and the current signal to obtain a processed voltage signal and a processed current signal.

[0037] In the embodiment of the present invention, the collected voltage signal and current signal are filtered, analyzed and processed by the signal processing system to improve the stability and accuracy of the signal.

[0038] Step 104, based on comparing the processed voltage signal and the processed current signal with the preset voltage threshold and the preset current threshold respectively, a warning electrical signal is obtained, wherein the warning electrical signal includes a warning voltage signal and a warning current signal, the warning voltage signal exceeds the preset voltage threshold, and the warning current signal exceeds the preset current threshold.

[0039] In an embodiment of the present invention, the processed voltage signal and the processed current signal are compared with a preset voltage threshold and a preset current threshold, and the electrical signal (including the current signal and the voltage signal) exceeding the threshold is determined as a warning electrical signal, and a fault alarm is generated for the warning electrical signal (numerical value) exceeding the threshold.

[0040] Step 105: Send warning information based on the warning electrical signal through the alarm circuit, wherein the warning information is used to warn that there is a fault in the rail transit equipment corresponding to the warning electrical signal.

[0041] In the embodiment of the present invention, when the voltage or current exceeds the preset threshold, the alarm is triggered. The alarm circuit usually uses a pop-up window alarm, a sound alarm, a text message notification, etc. of the monitoring system to attract the user's attention and prompt the abnormal situation.

[0042] For example, when an early warning message is generated, the monitoring system will prompt on the page in the form of a pop-up window and sound alarm. When the operator sees the early warning message, he can promptly notify the maintenance personnel to carry out maintenance. After the voltage and current values ​​of the equipment return to normal, the early warning message will automatically disappear.

[0043] If the voltage and current values ​​exceed the thresholds set by the operator, the monitoring system will prompt in the form of a pop-up window and sound alarm on the page, and send a text message alarm to the operator, who will notify the maintenance personnel. After the inspection is completed and the voltage and current values ​​of the equipment are normal, the alarm information will automatically disappear. If the maintenance personnel find that it is a false alarm after inspection, the alarm information can be blocked and the inspection and diagnosis results will be provided.

[0044] Through the above steps of the embodiment provided by the present invention, transmission data sent by multiple rail transit equipment are obtained, wherein the transmission protocols of the transmission data are different; the transmission data are parsed according to the preset mapping point table to obtain the voltage signal and current signal of each rail transit equipment corresponding to the transmission data; the voltage signal and the current signal are preprocessed to obtain a processed voltage signal and a processed current signal; based on the processed voltage signal and the processed current signal, the preset voltage threshold and the preset current threshold are compared respectively to obtain an early warning electrical signal, wherein the early warning electrical signal includes an early warning voltage signal and an early warning current signal, the early warning voltage signal exceeds the preset voltage threshold, and the early warning current signal exceeds the preset current threshold; early warning information is sent based on the early warning electrical signal through the alarm circuit, wherein the early warning information is used to warn that there is a fault in the rail transit equipment corresponding to the early warning electrical signal; when the voltage or current exceeds the preset threshold, the early warning can be triggered in time to remind the user to perform fault processing on the rail transit equipment corresponding to the early warning electrical signal; thereby solving the technical problem of the long hysteresis in the voltage and current monitoring method of rail transit equipment in the related technology.

[0045] According to a voltage and current over-limit alarm method based on rail transit industry equipment provided by the present invention, transmission data sent by multiple rail transit equipment is obtained, including: Data is collected from multiple rail transit devices based on a preset transmission protocol to obtain transmission data sent by multiple rail transit devices, wherein the preset transmission protocol includes at least one of the following: transmission control protocol, user datagram protocol and MODBUS communication protocol.

[0046] In the embodiment of the present invention, the specific protocol type (TCP, UDP, MODBUS, etc.) used by the rail transit equipment is first confirmed, and the format of the data sent by the rail transit equipment is determined, including the structure of the data packet, the meaning of the fields, the data type (such as integer, floating point, string, etc.) and possible checksums (checksums). An independent adapter module is designed for each protocol type, and these modules will be responsible for handling all communication tasks related to the protocol. A unified interface is defined for the protocol adapter module so that it can be called in other parts of the data acquisition system. These interfaces should include methods such as initializing connections, sending requests, receiving responses, and parsing data.

[0047] Then, according to the data format sent by the device, define the corresponding data structure (such as structure, class) in the code, write code to parse the received raw data and convert it into the defined data structure.

[0048] Through the embodiment of the present invention, data acquisition software adapted to different transmission protocols is written according to the instructions provided by the equipment manufacturer, so as to realize the data information collection of various equipment in the rail transportation industry.

[0049] According to a voltage and current over-limit alarm method based on rail transit industry equipment provided by the present invention, before parsing the transmission data according to a preset mapping point table to obtain the voltage signal and current signal of each rail transit equipment corresponding to the transmission data, the method further includes: A preset mapping point table is obtained, wherein the preset mapping point table is used to represent a mapping relationship between transmission data and a voltage signal and a current signal of each rail transit device in a plurality of rail transit devices.

[0050] In the embodiment of the present invention, the transmission protocols such as TCP, UDP, MODBUS, etc. adapted to the device transmission are compiled according to the instructions provided by the device manufacturer to collect the device data information. The collected data is then parsed according to the field point table provided by the manufacturer to obtain the voltage and current values ​​corresponding to each device, and provide a basis for data processing.

[0051] In the embodiment of the present invention, the preset mapping point table can be a field point table provided by the rail transit equipment manufacturer, and the field point table (usually an Excel file, a CSV file or a database table) is obtained and imported, and the parsed data structure (i.e., the transmission data) is mapped with the points in the field point table to obtain the specific meaning (such as voltage, current, etc.) of each transmission data (point). According to the mapping relationship, the value of each point is extracted from the transmission data.

[0052] According to a voltage and current over-limit alarm method based on rail transit industry equipment provided by the present invention, a voltage signal and a current signal are preprocessed to obtain a processed voltage signal and a processed current signal, including: The voltage signal and the current signal are filtered and analyzed to obtain a processed voltage signal and a processed current signal.

[0053] During the data acquisition process, the collected voltage and current signals often contain noise, interference or unnecessary fluctuations, which will affect the stability and accuracy of the signal. Therefore, it is necessary to filter and analyze the electrical signals.

[0054] For example, a low-pass filter is used to remove high-frequency noise in voltage and current signals, and the low-frequency components in the signals are retained to remove high-frequency noise caused by electromagnetic interference, power supply fluctuations, etc. If the amplitude of the collected signal is small, it needs to be amplified to improve the signal-to-noise ratio. However, care should be taken to avoid introducing additional noise or distortion.

[0055] In the embodiment of the present invention, the voltage signal and the current signal are analyzed by time domain analysis or frequency domain analysis, wherein the time domain analysis is used to directly observe the change of the signal over time to identify the periodicity, trend, mutation and other characteristics of the signal. The frequency domain analysis is used to convert the signal from the time domain to the frequency domain by means of Fourier transform and other methods, analyze the frequency components of the signal, and identify the noise source in the signal and the frequency range of the useful signal.

[0056] refer to Figure 2 , Figure 2 It is a flow chart of the electrical signal data health anomaly prediction provided by the present invention, which specifically includes the following steps.

[0057] According to a voltage and current over-limit alarm method based on rail transit industry equipment provided by the present invention, after preprocessing the voltage signal and the current signal to obtain the processed voltage signal and the processed current signal, the method further includes: Step 201 , performing statistics on the processed voltage signal and the processed current signal to obtain electrical signal data.

[0058] Step 202: An abnormality prediction is performed based on the electrical signal data using a preset health algorithm to obtain an abnormal electrical signal.

[0059] Step 203: Send abnormal information based on the abnormal electrical signal through the alarm circuit, wherein the abnormal information is used to warn that the rail transit equipment corresponding to the abnormal electrical signal has abnormal health.

[0060] In an embodiment of the present invention, it is necessary to preprocess the statistically obtained electrical signal data, for example, to remove outliers, missing values ​​and other data points that do not meet the requirements; and convert the electrical signal data into a format suitable for analysis, such as converting time series data into a format suitable for machine learning model processing.

[0061] Use statistical methods to analyze the changing trends, periodicity and other characteristics of the voltage and current data in the electrical signal data, and select appropriate machine learning models, such as regression models, classification models or time series prediction models, to build a health prediction model; then, use historical data to train the health prediction model, learn the relationship between voltage and current data and equipment health, and evaluate the accuracy and generalization ability of the model through methods such as cross-validation.

[0062] As new data continues to accumulate, the health prediction model is updated regularly to improve the accuracy of the prediction, and a feedback mechanism is established to collect the actual situation after the warning to verify the accuracy of the warning and optimize the health algorithm.

[0063] The health indicators of the health algorithm (health prediction model) can be health indicators of equipment defined according to business needs, such as fluctuation ranges of voltage and current, abnormal frequency, etc. The real-time data or features of the equipment are input into the trained health prediction model to calculate the health score of the equipment; the warning threshold of the health score is set according to historical data and business needs, and the warning logic is triggered when the health score of the equipment is lower than the set warning threshold.

[0064] Through the embodiments of the present invention, it is possible to collect and count the voltage and current data of the equipment, and predict the health of the equipment through big data calculation, so as to timely discover potential problems and take corresponding maintenance measures to ensure the normal operation of the equipment.

[0065] According to a voltage and current over-limit alarm method based on rail transit industry equipment provided by the present invention, after sending the warning information based on the warning electrical signal through the alarm circuit, the method further includes: When the warning voltage signal and the warning current signal in the warning electrical signal are respectively lower than a preset voltage threshold and a preset current threshold, the warning information is eliminated.

[0066] In the embodiment of the present invention, when the voltage or current exceeds the preset threshold, the alarm is triggered. The alarm circuit usually uses a pop-up window alarm, a sound alarm, a text message notification, etc. of the monitoring system to attract the user's attention and prompt the abnormal situation.

[0067] When an early warning message is generated, the monitoring system will prompt the operator with a pop-up window and a sound alarm on the page. When the operator sees the early warning message, he can promptly notify the maintenance personnel to carry out maintenance. After the voltage and current values ​​of the equipment are normal, the early warning message disappears automatically. If the voltage and current values ​​exceed the thresholds set by the operator, the monitoring system will prompt the operator with a pop-up window and a sound alarm on the page, and send a text message alarm to the operator. The operator notifies the maintenance personnel, and after the maintenance is completed, the alarm message disappears automatically after the voltage and current values ​​of the equipment are normal. If the maintenance personnel find that it is a false alarm after maintenance, the alarm message can be blocked and the maintenance diagnosis results will be provided.

[0068] According to the voltage and current over-limit alarm method based on rail transit industry equipment provided by the present invention, the equipment voltage and current over-limit alarm technology is mainly based on three core links: data acquisition, signal processing and comparison, and alarm output.

[0069] Data collection: There are many devices in the rail transit industry, and each device supports different data transmission protocols and different formats for sending data. At this time, there is a need for a data collection software. According to the instructions provided by the equipment manufacturer, the TCP, UDP, MODBUS and other transmission protocols that adapt to the equipment transmission are written to collect equipment data information. The collected data is then analyzed according to the field point table provided by the manufacturer to obtain the voltage and current values ​​corresponding to each device, and provide a basis for data processing.

[0070] Signal processing and comparison: The collected voltage and current signals are filtered, analyzed, and processed by the signal processing system to improve the stability and accuracy of the signal. Then, these processed signals are compared with the preset voltage and current thresholds, and fault alarms are generated for values ​​exceeding the thresholds. In addition, the voltage and current of the equipment are collected and counted, and the health of the equipment is predicted through the calculation of big data. According to the health algorithm, if the equipment is predicted to have abnormal health, early warning information will be generated.

[0071] Alarm output and recovery: When the voltage or current exceeds the preset threshold, the alarm is triggered. The alarm circuit usually uses the monitoring system to pop up an alarm, sound alarm, SMS notification, etc. to attract the user's attention and prompt abnormal conditions. When an early warning message is generated, the monitoring system will pop up a window and sound alarm on the page to prompt. The operator can see the early warning message and notify the maintenance personnel to perform maintenance in time. After the voltage and current values ​​of the equipment are normal, the early warning message disappears automatically. If the voltage and current values ​​exceed the threshold set by the operator, the monitoring system will pop up a window and sound alarm on the page to prompt, and send a SMS alarm to the operator. The operator notifies the maintenance personnel, and after the maintenance is completed, the alarm information will automatically disappear after the voltage and current values ​​of the equipment are normal. If the maintenance personnel find that it is a false alarm after maintenance, the alarm information can be blocked and the maintenance diagnosis results can be provided.

[0072] The following is a description of the voltage and current over-limit alarm device based on rail transit industry equipment provided by the present invention. The voltage and current over-limit alarm device based on rail transit industry equipment described below and the voltage and current over-limit alarm method based on rail transit industry equipment described above can be referenced to each other.

[0073] refer to Figure 3 , Figure 3 It is a structural schematic diagram of a voltage and current over-limit alarm device based on rail transit industry equipment provided by the present invention, which includes: an acquisition module 301, an analysis module 302, a preprocessing module 303, a comparison module 304 and a sending module 305.

[0074] An acquisition module 301 is used to acquire transmission data sent by a plurality of rail transit devices, wherein the transmission protocols of the transmission data are different; The analysis module 302 is used to analyze the transmission data according to the preset mapping point table to obtain the voltage signal and current signal of each rail transit equipment corresponding to the transmission data; A preprocessing module 303 is used to preprocess the voltage signal and the current signal to obtain a processed voltage signal and a processed current signal; A comparison module 304 is used to compare the processed voltage signal and the processed current signal with a preset voltage threshold and a preset current threshold respectively to obtain a warning electrical signal, wherein the warning electrical signal includes a warning voltage signal and a warning current signal, the warning voltage signal exceeds the preset voltage threshold, and the warning current signal exceeds the preset current threshold; The sending module 305 is used to send warning information based on the warning electrical signal through the alarm circuit, wherein the warning information is used to warn that there is a fault in the rail transit equipment corresponding to the warning electrical signal.

[0075] Specifically, the voltage and current over-limit alarm device based on rail transit industry equipment provided by the present invention can implement all the method steps implemented by the voltage and current over-limit alarm method embodiment based on rail transit industry equipment, and can achieve the same technical effect. The parts and beneficial effects of this embodiment that are the same as the method embodiment will not be described in detail here.

[0076] Figure 4 is a schematic diagram of the physical structure of the electronic device provided by the present invention, such as Figure 4 As shown, the electronic device may include: a processor (processor) 410 , a communication interface (Communications Interface) 420 , a memory (memory) 430 and a communication bus 440 , wherein the processor 410 , the communication interface 420 , and the memory 430 communicate with each other through the communication bus 440 . The processor 410 can call the logic instructions in the memory 430 to execute a voltage and current over-limit alarm method based on rail transit industry equipment, the method including: obtaining transmission data sent by multiple rail transit equipment, wherein the transmission protocols of the transmission data are different; parsing the transmission data according to a preset mapping point table to obtain a voltage signal and a current signal of each rail transit equipment corresponding to the transmission data; preprocessing the voltage signal and the current signal to obtain a processed voltage signal and a processed current signal; based on the processed voltage signal and the processed current signal, respectively comparing with a preset voltage threshold and a preset current threshold to obtain a warning electrical signal, wherein the warning electrical signal includes a warning voltage signal and a warning current signal, the warning voltage signal exceeds the preset voltage threshold, and the warning current signal exceeds the preset current threshold; sending warning information based on the warning electrical signal through an alarm circuit, wherein the warning information is used to warn that there is a fault in the rail transit equipment corresponding to the warning electrical signal.

[0077] In addition, the logic instructions in the above-mentioned memory 430 can be implemented in the form of a software functional unit and can be stored in a computer-readable storage medium when it is sold or used as an independent product. Based on this understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art or the part of the technical solution, can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including a number of instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present invention. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), disk or optical disk, etc. Various media that can store program codes.

[0078] On the other hand, the present invention also provides a computer program product, which includes a computer program. The computer program can be stored on a non-transitory computer-readable storage medium. When the computer program is executed by a processor, the computer can execute the voltage and current over-limit alarm method based on rail transit industry equipment provided by the above methods. The method includes: obtaining transmission data sent by multiple rail transit equipment, wherein the transmission protocols of the transmission data are different; parsing the transmission data according to a preset mapping point table to obtain a voltage signal and a current signal of each rail transit equipment corresponding to the transmission data; preprocessing the voltage signal and the current signal to obtain a processed voltage signal and a processed current signal; based on the processed voltage signal and the processed current signal, respectively comparing with a preset voltage threshold and a preset current threshold, to obtain an early warning electrical signal, wherein the early warning electrical signal includes an early warning voltage signal and an early warning current signal, the early warning voltage signal exceeds the preset voltage threshold, and the early warning current signal exceeds the preset current threshold; sending early warning information based on the early warning electrical signal through an alarm circuit, wherein the early warning information is used to warn that there is a fault in the rail transit equipment corresponding to the early warning electrical signal.

[0079] On the other hand, the present invention also provides a non-transitory computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, is implemented to execute the voltage and current over-limit alarm method based on rail transit industry equipment provided by the above-mentioned methods, the method comprising: obtaining transmission data sent by multiple rail transit equipment, wherein the transmission protocols of the transmission data are different; parsing the transmission data according to a preset mapping point table to obtain a voltage signal and a current signal of each rail transit equipment corresponding to the transmission data; preprocessing the voltage signal and the current signal to obtain a processed voltage signal and a processed current signal; comparing the processed voltage signal and the processed current signal with a preset voltage threshold and a preset current threshold respectively to obtain a warning electrical signal, wherein the warning electrical signal includes a warning voltage signal and a warning current signal, the warning voltage signal exceeds the preset voltage threshold, and the warning current signal exceeds the preset current threshold; sending warning information based on the warning electrical signal through an alarm circuit, wherein the warning information is used to warn that there is a fault in the rail transit equipment corresponding to the warning electrical signal.

[0080] The device embodiments described above are merely illustrative, wherein the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the scheme of this embodiment. Ordinary technicians in this field can understand and implement it without paying creative labor.

[0081] Through the description of the above implementation methods, those skilled in the art can clearly understand that each implementation method can be implemented by means of software plus a necessary general hardware platform, and of course, can also be implemented by hardware. Based on this understanding, the above technical solution is essentially or the part that contributes to the prior art can be embodied in the form of a software product, and the computer software product can be stored in a computer-readable storage medium, such as ROM / RAM, a disk, an optical disk, etc., including a number of instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to execute the methods described in each embodiment or some parts of the embodiments.

[0082] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A voltage and current over-limit alarm method based on rail transportation industry equipment, characterized in that: include: Acquiring transmission data sent by a plurality of rail transit devices, wherein the transmission protocols of the transmission data are different; Parsing the transmission data according to a preset mapping point table to obtain a voltage signal and a current signal of each rail transit device corresponding to the transmission data; Preprocessing the voltage signal and the current signal to obtain a processed voltage signal and a processed current signal; Based on the comparison of the processed voltage signal and the processed current signal with a preset voltage threshold and a preset current threshold respectively, a warning electrical signal is obtained, wherein the warning electrical signal includes a warning voltage signal and a warning current signal, the warning voltage signal exceeds the preset voltage threshold, and the warning current signal exceeds the preset current threshold; An alarm circuit transmits an early warning message based on the early warning electrical signal, wherein the early warning message is used to warn that a fault exists in the rail transit equipment corresponding to the early warning electrical signal.

2. The voltage and current over-limit alarm method based on rail transit industry equipment according to claim 1 is characterized in that: The obtaining of transmission data sent by a plurality of rail transit devices includes: Data is collected from multiple rail transit devices based on a preset transmission protocol to obtain transmission data sent by the multiple rail transit devices, wherein the preset transmission protocol includes at least one of the following: transmission control protocol, user datagram protocol and MODBUS communication protocol.

3. The voltage and current over-limit alarm method based on rail transit industry equipment according to claim 1 is characterized in that: Before parsing the transmission data according to the preset mapping point table to obtain the voltage signal and current signal of each rail transit device corresponding to the transmission data, the method further includes: A preset mapping point table is obtained, wherein the preset mapping point table is used to represent a mapping relationship between the transmission data and a voltage signal and a current signal of each of the plurality of rail transit devices.

4. The voltage and current over-limit alarm method based on rail transportation industry equipment according to claim 1 is characterized in that: The preprocessing of the voltage signal and the current signal to obtain a processed voltage signal and a processed current signal includes: The voltage signal and the current signal are filtered and analyzed to obtain a processed voltage signal and a processed current signal.

5. The voltage and current over-limit alarm method based on rail transit industry equipment according to claim 1 is characterized in that: After preprocessing the voltage signal and the current signal to obtain a processed voltage signal and a processed current signal, the method further includes: performing statistics on the processed voltage signal and the processed current signal to obtain electrical signal data; Performing anomaly prediction based on the electrical signal data using a preset health algorithm to obtain an abnormal electrical signal; Abnormal information is sent based on the abnormal electrical signal through an alarm circuit, wherein the abnormal information is used to warn that the rail transit equipment corresponding to the abnormal electrical signal has a health abnormality.

6. The voltage and current over-limit alarm method based on rail transit industry equipment according to claim 1 is characterized in that: After the alarm circuit sends the warning information based on the warning electrical signal, the method further includes: When the warning voltage signal and the warning current signal in the warning electrical signal are respectively lower than the preset voltage threshold and the preset current threshold, the warning information is eliminated.

7. A voltage and current over-limit alarm device based on rail transit industry equipment, characterized in that: include: An acquisition module, configured to acquire transmission data sent by a plurality of rail transit devices, wherein the transmission protocols of the transmission data are different; An analysis module is used to analyze the transmission data according to a preset mapping point table to obtain a voltage signal and a current signal of each rail transit device corresponding to the transmission data; a preprocessing module, configured to preprocess the voltage signal and the current signal to obtain a processed voltage signal and a processed current signal; a comparison module, configured to compare the processed voltage signal and the processed current signal with a preset voltage threshold and a preset current threshold, respectively, to obtain a warning electrical signal, wherein the warning electrical signal includes a warning voltage signal and a warning current signal, the warning voltage signal exceeds the preset voltage threshold, and the warning current signal exceeds the preset current threshold; The sending module is used to send early warning information based on the early warning electrical signal through an alarm circuit, wherein the early warning information is used to warn that a fault exists in the rail transit equipment corresponding to the early warning electrical signal.

8. An electronic device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein: When the processor executes the computer program, the voltage and current over-limit alarm method based on rail transit industry equipment as described in any one of claims 1 to 6 is implemented.

9. A non-transitory computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the voltage and current over-limit alarm method based on rail transit industry equipment as described in any one of claims 1 to 6 is implemented.

10. A computer program product comprising a computer program, characterized in that When the computer program is executed by a processor, the voltage and current over-limit alarm method based on rail transit industry equipment as described in any one of claims 1 to 6 is implemented.

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