CN115560805B - Method, device and equipment for monitoring drainage and readable storage medium - Google Patents
Method, device and equipment for monitoring drainage and readable storage medium Download PDFInfo
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- CN115560805B CN115560805B CN202211201777.5A CN202211201777A CN115560805B CN 115560805 B CN115560805 B CN 115560805B CN 202211201777 A CN202211201777 A CN 202211201777A CN 115560805 B CN115560805 B CN 115560805B
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- 238000000034 method Methods 0.000 title claims abstract description 43
- 238000012544 monitoring process Methods 0.000 title claims abstract description 32
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- 238000004590 computer program Methods 0.000 description 16
- 238000010586 diagram Methods 0.000 description 9
- 230000006870 function Effects 0.000 description 5
- 229910000746 Structural steel Inorganic materials 0.000 description 4
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 3
- 238000009413 insulation Methods 0.000 description 3
- 229910052710 silicon Inorganic materials 0.000 description 3
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60M—POWER SUPPLY LINES, AND DEVICES ALONG RAILS, FOR ELECTRICALLY- PROPELLED VEHICLES
- B60M5/00—Arrangements along running rails or at joints thereof for current conduction or insulation, e.g. safety devices for reducing earth currents
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60M—POWER SUPPLY LINES, AND DEVICES ALONG RAILS, FOR ELECTRICALLY- PROPELLED VEHICLES
- B60M5/00—Arrangements along running rails or at joints thereof for current conduction or insulation, e.g. safety devices for reducing earth currents
- B60M5/02—Means for reducing potential difference between rail and adjacent ground
Abstract
The invention discloses a monitoring drainage method, a device, equipment and a readable storage medium, which relate to the technical field of drainage protection, wherein the monitoring drainage method comprises the following steps: step S10, acquiring a current polarization potential value of a drainage network according to a preset time period; step S20, judging whether the current polarization potential value of the drainage network is larger than a preset first potential threshold value; step S30, if the current polarization potential value of the drainage network is larger than a preset first potential threshold value, acquiring the current resistance value of the track; step S40, judging whether the current resistance value of the track is smaller than a preset resistance threshold value; and S50, if the current resistance value of the track is smaller than the preset resistance threshold value, controlling the action of the drainage switch to introduce the stray current of the drainage network into the negative bus. The invention combines the current resistance of the track to judge and control, avoids the action of the drainage switch with high frequency, and improves the accuracy of the action of the drainage switch.
Description
Technical Field
The present invention relates to the field of drainage protection technologies, and in particular, to a method, an apparatus, a device, and a readable storage medium for monitoring drainage.
Background
Urban rail transit has become an irreplaceable vehicle in cities at present, and is rapidly developed. The subway traction power supply system adopts a DC750V/DC1500V power supply mode, and under ideal conditions, traction current starts from the positive pole of the traction substation and returns to the negative pole of the traction substation through the contact net, the electric locomotive and the track. Because of poor insulation or incomplete insulation between the rail and the ground, current flowing through the rail cannot flow all the way back to the negative pole of the traction substation, some of the current can leak into the ground and then flow back to the substation, wherein the current leaking into the ground is the stray current. Stray currents in subways are a detrimental current that can cause varying degrees of damage to electrical equipment, tunnels, structural steel of ballast beds and nearby metal lines in subways. Electrochemical corrosion can be caused to facilities and cables if current protection is not performed.
In the prior art, if the polarization potential value of the electrical equipment or the structural steel reaches a potential threshold value, the action of a drainage switch is controlled, and the stray current of the electrical equipment or the structural steel is led into a negative bus. However, the action frequency of the drainage switch is high, and the polarization potential value of the electrical equipment or structural steel measured by some abnormal conditions can be increased, so that the drainage switch is in misoperation.
Disclosure of Invention
The embodiment of the invention provides a method, a device, equipment and a readable storage medium for monitoring drainage, which are used for solving the technical problems of more action frequency and insufficient action accuracy of a drainage switch in the existing method for monitoring drainage in the related art.
In a first aspect, a method of monitoring drainage is provided, comprising the steps of:
acquiring a current polarization potential value of the drainage network according to a preset time period;
judging whether the current polarization potential value of the drainage network is larger than a preset first potential threshold value or not;
If the current polarization potential value of the drainage network is larger than a preset first potential threshold value, acquiring the current resistance value of the track;
judging whether the current resistance value of the track is smaller than a preset resistance threshold value or not;
and if the current resistance value of the track is smaller than the preset resistance threshold value, controlling the action of the drainage switch to introduce the stray current of the drainage network into the negative bus.
In some embodiments, before the step of determining whether the current polarization potential value of the drainage network is greater than the preset first potential threshold, the method includes:
Judging whether the polarization potential value of the drainage network is larger than a preset second potential threshold value or not; wherein the second potential threshold is greater than the preset first potential threshold;
if yes, directly controlling the action of the drainage switch to introduce the stray current of the drainage network into the negative bus.
In some embodiments, the step of controlling the action of the drain switch to introduce stray current of the drain net into the negative bus bar includes:
Determining a required drainage volume according to a current polarization potential value of the drainage network and a preset polarization potential value-drainage volume curve;
And controlling the action of the drainage switch to introduce the stray current into the negative bus until the actual drainage quantity of the stray current reaches the required drainage quantity.
In some embodiments, the step of obtaining the current resistance value of the track includes:
And acquiring the resistance values of the current transition resistance and the current longitudinal resistance of the track.
In a second aspect, there is provided a monitoring drainage device comprising:
The first acquisition unit is used for acquiring the current polarization potential value of the drainage network according to a preset time period;
The first judging unit is used for judging whether the current polarization potential value of the drainage network is larger than a preset first potential threshold value or not;
the second acquisition unit is used for acquiring the current resistance value of the track if the current polarization potential value of the drainage network is larger than a preset first potential threshold value;
The second judging unit is used for judging whether the current resistance value of the track is smaller than a preset resistance threshold value or not;
And the first drainage unit is used for controlling the drainage switch to act so as to introduce the stray current of the drainage network into the negative bus if the current resistance value of the track is smaller than a preset resistance threshold value.
In some embodiments, the monitoring drainage device further comprises:
The third judging unit is used for judging whether the polarization potential value of the drainage network is larger than a preset second potential threshold value or not; wherein the second potential threshold is greater than the preset first potential threshold;
and the second drainage unit is used for directly controlling the drainage switch to act so as to introduce stray current of the drainage network into the negative bus if the polarization potential value of the drainage network is larger than a preset second potential threshold value.
In some embodiments, the process of controlling the drain switch to act to introduce the stray current of the drain network into the negative bus bar by the first drain unit is that:
Determining a required drainage volume according to a current polarization potential value of the drainage network and a preset polarization potential value-drainage volume curve;
And controlling the action of the drainage switch to introduce the stray current into the negative bus until the actual drainage quantity of the stray current reaches the required drainage quantity.
In some embodiments, the process of obtaining the current resistance value of the track by the second obtaining unit is that if the current polarization potential value of the drainage network is greater than a preset first potential threshold value:
And acquiring the resistance values of the current transition resistance and the current longitudinal resistance of the track.
In a third aspect, there is provided a computer device comprising: the system comprises a memory and a processor, wherein at least one instruction is stored in the memory, and the at least one instruction is loaded and executed by the processor so as to realize the monitoring drainage method.
In a fourth aspect, a computer readable storage medium is provided, the computer storage medium storing computer instructions that, when executed by a computer, cause the computer to perform the aforementioned method of monitoring drainage.
The technical scheme provided by the invention has the beneficial effects that:
The embodiment of the invention provides a method, a device, equipment and a readable storage medium for monitoring drainage, which are characterized in that firstly, the current polarization potential value of a drainage network is obtained, then whether the current polarization potential value of the drainage network is larger than a preset first potential threshold value is judged, if the current polarization potential value of the drainage network is larger than the preset first potential threshold value, the current resistance value of a track is obtained, finally, whether the current resistance value of the track is smaller than the preset resistance threshold value is judged, and if the current resistance value of the track is smaller than the preset resistance threshold value, the drainage switch is controlled to act so as to introduce stray current of the drainage network into a negative bus. The invention combines the current resistance of the track to judge and control, avoids the action of the drainage switch with high frequency, and improves the accuracy of the action of the drainage switch.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic flow chart of a method for monitoring drainage according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of the drainage electrical control principle provided in the embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a monitoring drainage device according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a computer device according to an embodiment of the present invention.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The embodiment of the invention provides a monitoring drainage method, which can solve the technical problems of more action frequency and insufficient action accuracy of a drainage switch in the existing monitoring drainage method.
Referring to fig. 1, an embodiment of the present invention provides a method for monitoring drainage, including the following steps:
Step S10, the current polarization potential value of the drainage network is obtained according to a preset time period. For example, the current polarization potential value of the drainage network is measured by the monitoring device at intervals of one hour. The drainage network generally refers to tunnel structure steel bars, viaduct structure steel bars, integral ballast bed structure steel bars, ground busbar of traction substation and the like.
Step S20, judging whether the current polarization potential value of the drainage network is larger than a preset first potential threshold value.
Step S30, if the current polarization potential value of the drainage network is larger than the preset first potential threshold value. And obtaining the current resistance value of the track. When the current polarization potential value of the drainage network reaches a certain value, the possibility that stray current leaks to the ground due to potential flowing in the drainage network is indicated.
Step S40, judging whether the current resistance value of the track is smaller than a preset resistance threshold value.
And S50, if the current resistance value of the track is smaller than the preset resistance threshold value, controlling the action of the drainage switch to introduce the stray current of the drainage network into the negative bus. Although the current polarization potential value of the drainage network reaches a certain value, the drainage network has the possibility that the potential flows to form stray current to leak into the ground. However, if the current resistance value of the track is larger and is not smaller than the preset resistance threshold, the insulation is good, the possibility that the potential flow of the drainage network forms stray current to leak into the ground is low, and the action of the drainage switch can not be controlled so as to introduce the stray current of the drainage network into the negative bus. Only when the current resistance value of the track is smaller than a preset resistance threshold value, the potential flow of the drainage network has high possibility of forming stray current leakage into the ground, and at the moment, the drainage switch is controlled to act so as to introduce the stray current of the drainage network into the negative bus, and the drainage network is prevented from being corroded by the stray current.
Fig. 2 is a schematic diagram of the drainage electrical control principle, which is used for draining an uplink drainage network and a downlink drainage network, and mainly comprises silicon diodes D1 and D2, adjustable resistors R11 and R12, and fixed current limiting resistors R21 and R22, wherein the polarity drainage of the stray current is realized by utilizing the forward conduction and reverse cut-off characteristics of the silicon diodes. Each drainage branch is provided with a drainage switch CZ for controlling whether the drainage branch is put into use. The RC loop is used for inhibiting spike pulse generated when the main loop is switched on and off. The unidirectional conductivity of the silicon diodes D1, D2 prevents reverse drainage from the negative bus to the drainage network, and the fast fuses FU1, FU2 are used to protect the monitoring drainage device in the event of a short circuit load. The current sensors M1 and M2 are used for detecting the magnitude of the drainage current in the drainage loop and controlling the duty ratio of the on-off of the IGBT by monitoring the drainage device so as to control the magnitude of the drainage current. When the IGBT is turned off, R11, R21, R12 and R22 are in a series state, so that the overall resistance is large, and the drainage current is small. When the IGBT is turned on, R11 and R12 are separated, and R2 with smaller resistance value is only arranged in the loop, so that the drainage is larger. R21 and R22 are mainly used to limit the instantaneous current of the main loop, so as to ensure that IGBT1 and IGBT2 can work normally.
According to the monitoring drainage method, firstly, the current polarization potential value of the drainage network is obtained, then whether the current polarization potential value of the drainage network is larger than a preset first potential threshold value is judged, if the current polarization potential value of the drainage network is larger than the preset first potential threshold value, the current resistance value of the track is obtained, finally, whether the current resistance value of the track is smaller than the preset resistance threshold value is judged, and if the current resistance value of the track is smaller than the preset resistance threshold value, the drainage switch is controlled to act so as to introduce stray current of the drainage network into a negative bus. The invention combines the current resistance of the track to judge and control, avoids the action of the drainage switch with high frequency, and improves the accuracy of the action of the drainage switch.
In an embodiment of the present invention, before the step of determining whether the current polarization potential value of the drainage network is greater than the preset first potential threshold, the method includes:
Judging whether the polarization potential value of the drainage network is larger than a preset second potential threshold value or not; wherein the second potential threshold is greater than the preset first potential threshold;
if yes, directly controlling the action of the drainage switch to introduce the stray current of the drainage network into the negative bus.
When the polarization potential value of the drainage network is larger than the preset second potential threshold value, the preset second potential threshold value is a plurality of times of the first potential threshold value, even if the current resistance value of the track is small at the moment, the possibility that the potential flowing in the drainage network forms stray current to leak to the ground is high, so that the drainage switch is directly controlled to act to introduce the stray current of the drainage network into the negative bus bar, and the stray current is prevented from corroding the drainage network.
As an optional implementation manner, in an embodiment of the present invention, the step of controlling the action of the drain switch to introduce the stray current of the drain network into the negative bus includes:
Determining a required drainage volume according to a current polarization potential value of the drainage network and a preset polarization potential value-drainage volume curve;
And controlling the action of the drainage switch to introduce the stray current into the negative bus until the actual drainage quantity of the stray current reaches the required drainage quantity.
Generally, the higher the current polarization potential value of the drainage network is, the larger the required drainage quantity is, but the problem of over drainage exists. The preset polarization potential value-drainage curve can be determined in advance through experiments.
As an optional implementation manner, in an embodiment of the present invention, the step of obtaining the current resistance value of the track includes:
The current transition resistance and the current longitudinal resistance of the track are obtained, and the larger the transition resistance and the longitudinal resistance are, the larger the inhibition effect on the stray current leakage ground is, so that comprehensive consideration can be carried out, and the drainage accuracy is improved.
Referring to fig. 3, an embodiment of the present invention further provides a monitoring drainage device, where the monitoring drainage device includes: the device comprises a first acquisition unit, a first judgment unit, a second acquisition unit, a second judgment unit and a first drainage unit.
The first acquisition unit is used for acquiring the current polarization potential value of the drainage network according to a preset time period.
The first judging unit is used for judging whether the current polarization potential value of the drainage network is larger than a preset first potential threshold value.
The second obtaining unit is used for obtaining the current resistance value of the track if the current polarization potential value of the drainage network is larger than a preset first potential threshold value.
The second judging unit is used for judging whether the current resistance value of the track is smaller than a preset resistance threshold value.
And the first drainage unit is used for controlling the drainage switch to act so as to introduce the stray current of the drainage network into the negative bus if the current resistance value of the track is smaller than a preset resistance threshold value.
The current polarization potential value of the drainage network is firstly obtained, then whether the current polarization potential value of the drainage network is larger than a preset first potential threshold value is judged, if the current polarization potential value of the drainage network is larger than the preset first potential threshold value, the current resistance value of the track is obtained, finally whether the current resistance value of the track is smaller than the preset resistance threshold value is judged, and if the current resistance value of the track is smaller than the preset resistance threshold value, the drainage switch is controlled to act so as to introduce stray current of the drainage network into a negative bus. The invention combines the current resistance of the track to judge and control, avoids the action of the drainage switch with high frequency, and improves the accuracy of the action of the drainage switch.
As an alternative implementation manner, in an embodiment of the present invention, the monitoring drainage device: a third judging unit and a second draining unit.
The third judging unit is used for judging whether the polarization potential value of the drainage network is larger than a preset second potential threshold value or not; wherein the second potential threshold is greater than the preset first potential threshold;
And the second drainage unit is used for directly controlling the drainage switch to act so as to introduce the stray current of the drainage network into the negative bus if the polarization potential value of the drainage network is larger than a preset second potential threshold value.
In an embodiment of the present invention, the process of controlling the drain switch to introduce the stray current of the drain network into the negative bus bar by the first drain unit is that:
Determining a required drainage volume according to a current polarization potential value of the drainage network and a preset polarization potential value-drainage volume curve;
And controlling the action of the drainage switch to introduce the stray current into the negative bus until the actual drainage quantity of the stray current reaches the required drainage quantity.
In an optional implementation manner, in an embodiment of the present invention, the process of obtaining the current resistance value of the track by the second obtaining unit is that if the current polarization potential value of the drainage network is greater than a preset first potential threshold value:
And acquiring the resistance values of the current transition resistance and the current longitudinal resistance of the track.
It should be noted that, for convenience and brevity of description, the specific working process of the above-described apparatus and units may refer to the corresponding process in the foregoing embodiment of the monitoring drainage method, which is not described herein again.
The monitoring drain provided by the above embodiments may be implemented in the form of a computer program that is executable on a computer device as shown in fig. 4.
The embodiment of the invention also provides computer equipment, which comprises: the system comprises a memory, a processor and a network interface which are connected through a system bus, wherein at least one instruction is stored in the memory, and the at least one instruction is loaded and executed by the processor so as to realize all or part of the steps of the monitoring and drainage method.
Wherein the network interface is used for network communication, such as sending assigned tasks, etc. It will be appreciated by persons skilled in the art that the architecture shown in fig. 4 is merely a block diagram of some of the architecture relevant to the present inventive arrangements and is not limiting as to the computer device to which the present inventive arrangements are applicable, and that a particular computer device may include more or fewer components than shown, or may combine some of the components, or have a different arrangement of components.
The processor may be a CPU, but may also be other general purpose processors, digital signal processors (DIGITAL SIGNAL processor, DSP), application SPECIFIC INTEGRATED Circuit (ASIC), off-the-shelf programmable gate array (Field Programmable GATE ARRAY, FPGA) or other programmable logic device, discrete gate or transistor logic device discrete hardware components, or the like. A general purpose processor may be a microprocessor, or the processor may be any conventional processor, or the like, that is a control center for a computer device, with various interfaces and lines connecting various parts of the entire computer device.
The memory may be used to store computer programs and/or modules, and the processor implements various functions of the computer device by running or executing the computer programs and/or modules stored in the memory, and invoking data stored in the memory. The memory may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, application programs required for at least one function (such as a video playing function, an image playing function, etc.), and the like; the storage data area may store data (such as video data, image data, etc.) created according to the use of the cellular phone, etc. In addition, the memory may include high speed random access memory, and may also include non-volatile memory, such as a hard disk, memory, plug-in hard disk, smart memory card (SMART MEDIA CARD, SMC), secure Digital (SD) card, flash memory card (FLASH CARD), at least one disk storage device, flash memory device, or other volatile solid state storage device.
Wherein in one embodiment the processor is configured to run a computer program stored in the memory to implement the steps of:
step S10, acquiring a current polarization potential value of a drainage network according to a preset time period;
Step S20, judging whether the current polarization potential value of the drainage network is larger than a preset first potential threshold value;
step S30, if the current polarization potential value of the drainage network is larger than a preset first potential threshold value, acquiring the current resistance value of the track;
step S40, judging whether the current resistance value of the track is smaller than a preset resistance threshold value;
And S50, if the current resistance value of the track is smaller than the preset resistance threshold value, controlling the action of the drainage switch to introduce the stray current of the drainage network into the negative bus.
In an embodiment of the present invention, before the step of determining whether the current polarization potential value of the drainage network is greater than the preset first potential threshold, the method includes:
Judging whether the polarization potential value of the drainage network is larger than a preset second potential threshold value or not; wherein the second potential threshold is greater than the preset first potential threshold;
if yes, directly controlling the action of the drainage switch to introduce the stray current of the drainage network into the negative bus.
As an optional implementation manner, in an embodiment of the present invention, the step of controlling the action of the drain switch to introduce the stray current of the drain network into the negative bus includes:
Determining a required drainage volume according to a current polarization potential value of the drainage network and a preset polarization potential value-drainage volume curve;
And controlling the action of the drainage switch to introduce the stray current into the negative bus until the actual drainage quantity of the stray current reaches the required drainage quantity.
As an optional implementation manner, in an embodiment of the present invention, the step of obtaining the current resistance value of the track includes:
And acquiring the resistance values of the current transition resistance and the current longitudinal resistance of the track.
Embodiments of the present invention also provide a computer readable storage medium having a computer program stored thereon, which when executed by a processor, implements all or part of the steps of the aforementioned monitoring drainage method.
The foregoing embodiments of the present invention may be implemented in whole or in part by computer program instructions for implementing the relevant hardware, and the computer program may be stored in a computer readable storage medium, where the computer program when executed by a processor may implement the steps of the methods described above. Wherein the computer program comprises computer program code, which may be in the form of source code, object code, executable files or in some intermediate form, etc. The computer readable medium may include: any entity or device capable of carrying computer program code, a recording medium, a U disk, a removable hard disk, a magnetic disk, an optical disk, a computer memory, a read-only memory (ROM), a random access memory (Random Access memory, RAM), an electrical carrier signal, a telecommunications signal, a software distribution medium, and so forth. It should be noted that the content of the computer readable medium can be appropriately increased or decreased according to the requirements of the jurisdiction's jurisdiction and the patent practice, for example, in some jurisdictions, the computer readable medium does not include electrical carrier signals and telecommunication signals according to the jurisdiction and the patent practice.
It will be appreciated by those skilled in the art that embodiments of the present invention may be provided as a method, system, server, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, magnetic disk storage, optical storage, and the like) having computer-usable program code embodied therein.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or system. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or system that comprises the element.
The above numbers in the embodiments of the present invention are merely for the purpose of description, and do not represent the advantages or disadvantages of the embodiments.
The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
The foregoing is only a specific embodiment of the invention to enable those skilled in the art to understand or practice the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (6)
1. A method of monitoring drainage comprising the steps of:
acquiring a current polarization potential value of the drainage network according to a preset time period;
judging whether the current polarization potential value of the drainage network is larger than a preset first potential threshold value or not;
if the current polarization potential value of the drainage network is larger than a preset first potential threshold value, acquiring the resistance values of the current transition resistance and the current longitudinal resistance of the track;
judging whether the current resistance value of the track is smaller than a preset resistance threshold value or not;
If the current resistance value of the track is smaller than a preset resistance threshold value, controlling the action of the drainage switch to introduce stray current of the drainage network into the negative bus;
The step of controlling the action of the drain switch to introduce stray current of the drain network into the negative bus comprises the following steps:
Determining a required drainage volume according to a current polarization potential value of the drainage network and a preset polarization potential value-drainage volume curve;
And controlling the action of the drainage switch to introduce the stray current into the negative bus until the actual drainage quantity of the stray current reaches the required drainage quantity.
2. The method for monitoring drainage according to claim 1, wherein before the step of determining whether the current polarization potential value of the drainage network is greater than a preset first potential threshold value, the method comprises:
Judging whether the polarization potential value of the drainage network is larger than a preset second potential threshold value or not; wherein the second potential threshold is greater than the preset first potential threshold;
if yes, directly controlling the action of the drainage switch to introduce the stray current of the drainage network into the negative bus.
3. A monitoring drainage device, comprising:
The first acquisition unit is used for acquiring the current polarization potential value of the drainage network according to a preset time period;
The first judging unit is used for judging whether the current polarization potential value of the drainage network is larger than a preset first potential threshold value or not;
The second acquisition unit is used for acquiring the resistance values of the current transition resistance and the current longitudinal resistance of the track if the current polarization potential value of the drainage network is larger than a preset first potential threshold value;
The second judging unit is used for judging whether the current resistance value of the track is smaller than a preset resistance threshold value or not;
The first drainage unit is used for controlling the drainage switch to act so as to introduce stray current of the drainage network into the negative bus if the current resistance value of the track is smaller than a preset resistance threshold value;
The first drainage unit is used for controlling the drainage switch to act so as to lead the stray current of the drainage network into the negative bus if the current resistance value of the track is smaller than a preset resistance threshold value, and the process is as follows:
Determining a required drainage volume according to a current polarization potential value of the drainage network and a preset polarization potential value-drainage volume curve;
And controlling the action of the drainage switch to introduce the stray current into the negative bus until the actual drainage quantity of the stray current reaches the required drainage quantity.
4. The monitoring drain of claim 3, further comprising:
The third judging unit is used for judging whether the polarization potential value of the drainage network is larger than a preset second potential threshold value or not; wherein the second potential threshold is greater than the preset first potential threshold;
and the second drainage unit is used for directly controlling the drainage switch to act so as to introduce stray current of the drainage network into the negative bus if the polarization potential value of the drainage network is larger than a preset second potential threshold value.
5. A computer device, comprising: a memory and a processor, the memory having stored therein at least one instruction that is loaded and executed by the processor to implement the monitored drainage method of any of claims 1 to 2.
6. A computer-readable storage medium, characterized by: the computer readable storage medium stores computer instructions that, when executed by a computer, cause the computer to perform the monitored drainage method of any of claims 1 to 2.
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| CN115560805A (en) | 2023-01-03 |
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