Condensation state determination method and device, equipment, storage medium and program product

Abstract

The invention provides a condensation state determination method and device, equipment, a storage medium and a program product. The method comprises the following steps: acquiring current environment data of the terminal box at the current moment, wherein the current environment data comprises the current temperature in the box, the current humidity in the box and the current temperature of the inner wall of the box; and determining the current dew point temperature of the terminal box at the current moment according to the current in-box temperature, the current in-box humidity and the first mapping relation. And finally, determining a target condensation state of the terminal box according to the current humidity in the box, the current box inner wall temperature, the current dew point temperature and the box inner wall temperature and the dew point temperature of the terminal box at the previous moment. Wherein the first mapping relation is used for representing the mapping relation among the temperature in the box, the humidity in the box and the dew point temperature. The problem that the accuracy of condensation state judgment is low is solved.

Description

Technical Field

[0001] The present application relates to the technical field of power systems, and in particular to a method, apparatus, device, storage medium, and program product for determining a condensation state. Background Art

[0002] Substation terminal boxes serve as the intermediary link between outdoor electrical equipment and indoor measurement, control, protection, and communication equipment, enabling electrical connectivity between the primary and secondary systems of the power system. Substation terminal boxes are mostly installed outdoors, making them susceptible to fluctuations in air temperature and humidity. This can lead to frequent condensation inside the terminal boxes, which can cause power system failures.

[0003] In the prior art, by acquiring environmental data such as temperature and humidity in the terminal box in real time, when the environmental data reaches the critical point of condensation, the corresponding dehumidification or heating equipment is automatically triggered to intervene, thereby preventing the occurrence of condensation.

[0004] However, the existing technology has the problem of low accuracy in judging the condensation state. Summary of the Invention

[0005] The embodiments of the present application provide a condensation state determination method, apparatus, device, storage medium, and program product to solve the problem of low accuracy in condensation state determination.

[0006] In a first aspect, an embodiment of the present application provides a method for determining a condensation state, comprising:

[0007] Obtain the current environmental data of the terminal box at the current moment, including the current box temperature, current box humidity, and current box wall temperature;

[0008] Determine the current dew point temperature of the terminal box at the current moment according to the current box temperature, the current box humidity, and a first mapping relationship, where the first mapping relationship is used to represent a mapping relationship between the box temperature, the box humidity, and the dew point temperature;

[0009] The target condensation state of the terminal box is determined according to the current humidity in the box, the current box inner wall temperature, the current dew point temperature, and the box inner wall temperature and dew point temperature of the terminal box at the previous moment.

[0010] In one possible implementation, the difference between the current box inner wall temperature and the current dew point temperature is determined as the current temperature difference; the difference between the box inner wall temperature and the dew point temperature of the terminal box at the previous moment is determined as the temperature difference at the previous moment; the difference between the current temperature difference and the temperature difference at the previous moment is determined as the target temperature difference; the time interval between the current moment and the previous moment is calculated; the ratio between the target temperature difference and the time interval is determined as the current temperature change rate; and the target condensation state is calculated based on the current temperature difference, the current temperature change rate and the current humidity in the box.

[0011] In one possible implementation, the target condensation state is determined based on the current temperature difference, the current temperature change rate, the current humidity inside the box, and a second mapping relationship. The second mapping relationship is used to represent the mapping relationship between the temperature difference, the temperature change rate, the humidity inside the box, and the condensation state.

[0012] In a possible implementation, when the target condensation state indicates that condensation has occurred inside the terminal box, the terminal box is heated.

[0013] In one possible embodiment, if the target condensation state indicates that no condensation has occurred inside the terminal box, and the current humidity inside the box is greater than the preset humidity and the current temperature change rate is greater than the preset temperature change rate, an early warning message is output, and the early warning message is used to indicate that the terminal box will produce condensation within a first preset time period.

[0014] In one possible embodiment, after the terminal box is heated, the timer starts timing and obtains the accumulated time; when the accumulated time reaches a second preset time, the current environmental data of the terminal box at the current moment is obtained again to redetermine the target condensation state of the terminal box.

[0015] In a second aspect, an embodiment of the present application provides a condensation state determination device, comprising:

[0016] The acquisition module is used to obtain the current environmental data of the terminal box at the current moment. The current environmental data includes the current temperature inside the box, the current humidity inside the box, and the current temperature of the inner wall of the box;

[0017] A first determining module is configured to determine a current dew point temperature of the terminal box at a current moment based on a current box temperature, a current box humidity, and a first mapping relationship, wherein the first mapping relationship is configured to represent a mapping relationship between the box temperature, the box humidity, and the dew point temperature;

[0018] The second determination module is used to determine the target condensation state of the terminal box according to the current humidity in the box, the current box inner wall temperature, the current dew point temperature, and the box inner wall temperature and dew point temperature of the terminal box at the previous moment.

[0019] In a third aspect, an embodiment of the present application provides an electronic device, comprising: a memory, a processor;

[0020] Memory stores computer-executable instructions;

[0021] The processor executes the computer-executable instructions stored in the memory, so that the processor executes the above first aspect and / or various possible implementations of the first aspect.

[0022] In a fourth aspect, an embodiment of the present application provides a computer-readable storage medium, in which computer-executable instructions are stored. When the computer-executable instructions are executed by a processor, they are used to implement the first aspect above and / or various possible implementation methods of the first aspect.

[0023] In a fifth aspect, an embodiment of the present application provides a computer program product, including a computer program, which, when executed by a processor, implements the above first aspect and / or various possible implementation methods of the first aspect.

[0024] The embodiments of the present application provide a condensation state determination method, device, equipment, storage medium and program product, which obtains the current environmental data of the terminal box at the current moment, the current environmental data including the current box temperature, the current box humidity and the current box wall temperature; determines the current dew point temperature of the terminal box at the current moment based on the current box temperature, the current box humidity and a first mapping relationship, the first mapping relationship being used to represent the mapping relationship between the box temperature, the box humidity and the dew point temperature; determines the target condensation state of the terminal box based on the current box humidity, the current box wall temperature, the current dew point temperature and the box wall temperature and dew point temperature of the terminal box at the previous moment, thereby solving the problem of low accuracy in judging the condensation state. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0026] Figure 1 A condensation state determination system provided in an embodiment of the present application;

[0027] Figure 2 A schematic diagram of a method for determining condensation state provided in an embodiment of the present application Figure 1 ;

[0028] Figure 3 A schematic diagram of a method for determining condensation state provided in an embodiment of the present application Figure 2 ;

[0029] Figure 4 A schematic diagram of the structure of the temperature acquisition module provided in an embodiment of the present application;

[0030] Figure 5 A schematic diagram of the structure of the condensation warning and emergency treatment module provided in an embodiment of the present application;

[0031] Figure 6 A schematic diagram of a method for determining condensation state provided in an embodiment of the present application Figure 3 ;

[0032] Figure 7 A schematic structural diagram of a condensation state determination device provided in an embodiment of the present application;

[0033] Figure 8 A schematic diagram of the structure of an electronic device provided in an embodiment of the present application.

[0034] The above drawings illustrate specific embodiments of the present application, which will be described in more detail below. These drawings and the textual description are not intended to limit the scope of the present application in any way, but rather to illustrate the concepts of the present application to those skilled in the art by reference to specific embodiments. DETAILED DESCRIPTION

[0035] Exemplary embodiments will be described in detail herein, with examples illustrated in the accompanying drawings. In the following description, when referring to the drawings, identical numerals in different figures represent identical or similar elements, unless otherwise indicated. The embodiments described in the following exemplary embodiments are not intended to represent all embodiments consistent with the present application. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present application, as detailed in the appended claims.

[0036] Figure 1 A condensation state determination system is provided in an embodiment of the present application. Figure 1 As shown, the condensation state determination system includes a first server 100 and a second server 200. The first server 100 includes a main controller 110, a temperature acquisition module 120, a humidity acquisition module 130, a power module 140, a communication module 150, a display unit 170, and a heating module 160. The temperature acquisition module 120, the humidity acquisition module 130, the power module 140, the communication module 150, the display unit 170, and the heating module 160 are all connected to the main controller 110.

[0037] Among them, the communication module 150 is connected to the second server 200, thereby realizing networked data transmission between the first server 100 and the second server 200; the temperature acquisition module 120 is used for ambient temperature data collection, and the humidity acquisition module 130 is used for ambient humidity data collection to avoid the problem of device damage caused by excessive ambient humidity; the power supply module 140 is used to provide power to the main controller 110; the display unit 170 is used for data display and alarm to remind relevant operation and maintenance personnel to be vigilant and take relevant measures.

[0038] The second server 200, as a background server, may specifically include a collection server, an analysis server, and a forwarding device. The collection server receives data uploaded by the first server 100 through a protocol, and centrally manages, categorizes, and stores the data. The analysis server calls the collection server data for graphical display and expert group decision analysis. The forwarding device, based on the configured data forwarding rules, packages the data into a protocol format compatible with the target server (i.e., the server that stores the terminal box environmental data for easy viewing by relevant operation and maintenance personnel) or the client (i.e., the terminal that receives the terminal box environmental data for easy viewing by relevant operation and maintenance personnel). The analysis server introduces a dynamic curve generation tool that regularly retrieves the terminal box temperature and humidity data centrally managed by the collection server, displays the changing trend of temperature and humidity, establishes the intrinsic connection between condensation and temperature and humidity data, and determines whether condensation may occur in the box, providing an important basis for the maintenance of the substation terminal box.

[0039] Substation terminal boxes serve as the intermediary link between outdoor electrical equipment and indoor measurement, control, protection, and communication equipment, enabling electrical connectivity between the primary and secondary systems within the power system. Since terminal boxes are often installed outdoors, fluctuations in air temperature and humidity can lead to frequent condensation and dripping inside the box, which can degrade secondary circuit insulation and even cause short circuits. Alternatively, rust can cause terminal block screws and connectors to rust, resulting in poor contact between the secondary terminals, heating the current circuit terminals, or even causing an open circuit. Condensation within the terminal box can seriously impact the stable operation of the substation.

[0040] Conventional technology monitors environmental data such as temperature and humidity within the terminal box in real time. When these data reach the critical condensation point, the corresponding dehumidification or heating equipment is automatically triggered to intervene, thereby preventing condensation. Specifically, the monitoring system pre-sets temperature and humidity thresholds. If the temperature or humidity within the terminal box exceeds the preset temperature threshold, the temperature and humidity conditions are sufficient to cause water vapor in the air to condense into water droplets, causing condensation. This indicates that the critical condensation point has been reached, triggering the intervention of the dehumidification or heating equipment.

[0041] However, in cold environments, the temperature outside the terminal box is very low. When the air inside the terminal box contacts the cold walls, condensation is likely to form. However, the temperature inside the terminal box may not reach the preset threshold, and the impending condensation may be overlooked. Furthermore, the system fails to establish a connection between various types of environmental data. Intervention based solely on set thresholds can prevent condensation from being accurately identified.

[0042] The inventor believes that, first, based on the consideration of the temperature and humidity of the terminal box, the temperature of the inner wall of the terminal box is introduced, and the temperature of the inner wall of the terminal box is used to reflect the difference in environment inside and outside the terminal box. Secondly, condensation can only occur when the dew point temperature is higher than the temperature of the inner wall of the terminal box. The dew point temperature depends on the temperature and humidity inside the box, so the current temperature and humidity inside the box can be used to determine the dew point temperature at the current moment, and the dew point temperature can also be used as an influencing factor for judging the condensation state. At the same time, the temperature and dew point temperature of the inner wall of the terminal box at the previous moment are introduced, so that the difference between the temperature and the dew point temperature of the inner wall of the terminal box can be observed, and the speed of change of the difference between the current moment and the previous moment can be used to reflect the length of time it takes to reach the condensation state. In this way, based on the speed of change of the temperature difference, the three types of environmental data, namely the current humidity inside the box, the current temperature of the inner wall of the box and the current dew point temperature, are linked to determine the target condensation state for the final judgment, thereby solving the problem of low accuracy in judging the condensation state.

[0043] The following specific embodiments describe in detail the technical solution of the present application and how the technical solution of the present application solves the above-mentioned technical problems. The following specific embodiments can be combined with each other, and the same or similar concepts or processes may not be repeated in some embodiments. The embodiments of the present application will be described below in conjunction with the accompanying drawings.

[0044] Figure 2 A schematic diagram of a method for determining condensation state provided in an embodiment of the present application Figure 1 ,like Figure 2 As shown, the method includes:

[0045] S201. Obtain current environmental data of the terminal box at the current moment.

[0046] The current time refers to the specific time when the terminal box environment data is obtained. For example, if the command to obtain data is executed at 9:40 am, the current time is 9:40 am.

[0047] Current environmental data refers to the terminal box environmental data acquired at the current moment. This data includes the current box temperature, current box humidity, and current box wall temperature.

[0048] The current box temperature refers to the temperature inside the terminal box at the current moment, the current box humidity refers to the humidity inside the terminal box at the current moment, and the current box wall temperature refers to the temperature of the inner wall of the terminal box at the current moment.

[0049] In the embodiment of this application, it is possible to use Figure 1 The temperature acquisition module and humidity acquisition module mentioned in the embodiment acquire current environmental data and sense the temperature and humidity conditions in the terminal box through the sensors built into the modules.

[0050] In practical applications, data acquisition can be performed by initiating a scheduled task on the main controller at preset intervals, such as every 10 or 30 minutes, to periodically acquire environmental data. When the scheduled task is triggered, the temperature and humidity acquisition modules simultaneously activate to collect the current temperature and humidity inside the terminal box, respectively. The collected temperature and humidity data is transmitted to the main controller via an internal data bus. The main controller then sends this data to a secondary server via the communication module.

[0051] Data can also be acquired by the controller receiving a trigger signal from a remote monitoring center or maintenance personnel. For example, during an inspection, maintenance personnel can send a collection command to the controller via a handheld terminal, or the remote monitoring center can issue a collection command under specific circumstances (such as sudden weather changes or equipment anomalies).

[0052] The current environmental data obtained can also be environmental data received by the communication module from other devices. For example, temperature and humidity data collected by other monitoring devices in the area where the terminal box is located, such as weather stations and environmental monitors, can be transmitted to the communication module via the communication network.

[0053] S202: Determine the current dew point temperature of the terminal box at the current moment according to the current temperature inside the box, the current humidity inside the box, and the first mapping relationship.

[0054] The first mapping relationship refers to the mapping relationship between the temperature inside the box, the humidity inside the box, and the dew point temperature. After obtaining the temperature inside the box and the humidity inside the box at a certain moment, the dew point temperature at that moment can be determined.

[0055] The current dew point temperature refers to the dew point temperature corresponding to the current temperature and humidity inside the chamber at the current moment, and is used to measure the water vapor content in the air.

[0056] Exemplarily, the first mapping relationship can be represented by Table 1.

[0057] Table 1

[0058]

[0059] Referring to Table 1, when the temperature inside the box is 30°C and the humidity inside the box is 60% RH, the dew point temperature of the terminal box at the current moment is 21.4°C. As can be seen from Table 1, the relationship between the dew point temperature and the temperature and humidity inside the box is as follows:

[0060] (1) When the humidity inside the box is constant, if the temperature inside the box is higher, the dew point temperature will be higher, that is, the water content per unit air will increase. At this time, when the high-temperature air encounters the inner wall of the terminal box, it is easier to precipitate water droplets, and the condensation time will be shortened;

[0061] (2) When the temperature inside the box is constant, the temperature of the inner wall of the box is also constant, and the corresponding saturated moisture content is also the same. At this time, if the humidity inside the box is higher, the air contains more moisture, and it is easier for the inner wall of the terminal box at the same temperature to reach saturation and precipitate moisture, and the condensation formation time is shorter.

[0062] It should be understood that the higher the humidity in the box, the shorter the condensation time, and condensation will only occur when the dew point temperature is higher than the temperature of the inner wall of the terminal box.

[0063] The intrinsic relationship between condensation and temperature and humidity data can be obtained, as shown in Table 2.

[0064] Table 2

[0065]

[0066]

[0067] S203 , determining a target condensation state of the terminal box according to the current humidity in the box, the current temperature of the inner wall of the box, the current dew point temperature, and the inner wall temperature and dew point temperature of the terminal box at the previous moment.

[0068] The target condensation state refers to an evaluation state of whether condensation will occur inside the terminal box, and may include whether condensation has occurred or not.

[0069] The embodiment of the present application provides a method for determining the condensation state, which obtains the environmental data at the current moment, including the temperature inside the box, the humidity inside the box, and the temperature of the inner wall of the box, to provide a basis for subsequent analysis. Then, the first mapping relationship between the temperature inside the box, the humidity inside the box, and the dew point temperature is used to determine the current dew point temperature, thereby quantifying the temperature at which the water vapor in the air begins to condense into water droplets under the current conditions. Then, the target condensation state is predicted based on the current humidity inside the box, the current temperature of the inner wall of the box, the current dew point temperature, and the temperature of the inner wall of the terminal box at the previous moment and the dew point temperature. This solves the problem of low accuracy in judging the condensation state.

[0070] In practical applications, the first server in the condensation status determination system monitors the temperature and humidity data inside the terminal box in real time and uploads the data to the second server through wireless communication networks, such as long-range radio communication technology (LoRa), ZigBee protocol and narrowband Internet of Things (NB-IoT). The second server generates a dynamic curve for the received data and analyzes the relationship between condensation and temperature and humidity to determine whether condensation is likely to occur in the box and provide fault warning and emergency treatment.

[0071] The humidity acquisition module in the first server directly uses a humidity sensor, which is connected to the main controller. It accurately obtains the ambient humidity based on the digital signal. The measurement range of humidity is 0-100%, and the relative humidity accuracy is ±2%, thus achieving high-precision humidity measurement.

[0072] Next, through Figure 3 The implementation process and principle of S203 are explained in detail.

[0073] Figure 3 A schematic diagram of a method for determining condensation state provided in an embodiment of the present application Figure 2 ,like Figure 3 As shown, the method includes:

[0074] S301, subtracting the current dew point temperature from the current box inner wall temperature to determine the current temperature difference;

[0075] S302, determining the difference between the terminal box inner wall temperature and the dew point temperature at the previous moment as the temperature difference at the previous moment;

[0076] S303, determining the difference between the current temperature difference and the temperature difference at the previous moment as the target temperature difference;

[0077] S304, calculating the time interval between the current moment and the previous moment;

[0078] S305, determining the ratio between the target temperature difference and the time interval as the current temperature change rate;

[0079] S306: Calculate the target condensation state according to the current temperature difference, the current temperature change rate, and the current humidity in the chamber.

[0080] The current temperature difference refers to the difference between the inner wall temperature of the box and the dew point temperature at the current moment.

[0081] Among them, the time interval between the current moment and the previous moment is determined based on the preset time division rule. For example, the command to obtain environmental data is executed at 9:40 am, and the command to obtain environmental data is executed again at 10 am. The time interval is 20 minutes.

[0082] The current temperature change rate refers to the rate at which the difference between the current temperature difference and the previous temperature difference changes over time. For example, if the current temperature T3 of the inner wall of the box is 25°C and the dew point temperature T0 is 21.4°C, then the current temperature difference ΔT is 25°C - 21.4°C = 3.6°C. At the same time, the previous temperature T3 of the inner wall of the box is ′ The dew point temperature is 26℃, T0 ′ is 23.9℃, then the temperature difference ΔT at the previous moment is ′ = 26℃-23.9℃=2.1℃. If the time interval is 20 minutes, the current temperature change rate S ΔT It is (3.6-2.1) / 20=0.075.

[0083] In practical applications, the temperature of the inner wall of the box depends on the temperature inside the box and the temperature outside the box, so the current environmental data may also include the temperature outside the box.

[0084] In a possible implementation, the target condensation state is determined according to the current temperature difference, the current temperature change rate, the current humidity in the box, and the second mapping relationship.

[0085] The second mapping relationship is used to represent the mapping relationship among the temperature difference, the temperature change rate, the humidity in the box, and the condensation state.

[0086] For example, the temperature difference is represented by ΔT, and the temperature change rate is represented by S. ΔT The humidity inside the box is represented by RH, and the second mapping relationship is as follows:

[0087] (1) When ΔT>0, S ΔT >1 or S ΔT <-1, RH>60%, the condensation state is recorded as Postive & Fast & Big, abbreviated as PFB;

[0088] (2) When ΔT>0, S ΔT >1 or S ΔT <-1, 40%≤RH≤60%, the condensation state is recorded as Postive&Fast&Middle, abbreviated as PFM;

[0089] (3) When ΔT>0, S ΔT >1 or S ΔT<-1, RH<40%, the condensation state is recorded as Postive&Fast&Small, abbreviated as PFS1;

[0090] (4) When ΔT>0, S ΔT =1, RH>60%, the condensation state is recorded as Postive&Normal&Big, abbreviated as PN1B;

[0091] (5) When ΔT>0, S ΔT =1, 40%≤RH≤60%, the condensation state is recorded as Postive&Normal&Middle, abbreviated as PN1M;

[0092] (6) When ΔT>0, S ΔT =1, RH<40%, the condensation state is recorded as Postive&Normal&Small, abbreviated as PN1S1;

[0093] (7) When ΔT>0, -1 ΔT When RH < 1 and RH > 60%, the condensation state is recorded as Postive & Slow & Big, abbreviated as PS2B;

[0094] (8) When ΔT>0, -1 ΔT When RH < 1, 40% ≤ RH ≤ 60%, the condensation state is recorded as Postive & Slow & Middle, abbreviated as PS2M;

[0095] (9) When ΔT>0, -1 ΔT <1, RH <40%, the condensation state is recorded as Postive&Slow&Small, abbreviated as PS2S1;

[0096] (10) When ΔT = 0, the condensation state is recorded as Zero, abbreviated as ZE;

[0097] (11) When ΔT<0, S ΔT >1 or S ΔT When RH <-1 and RH>60%, the condensation state is recorded as Negative&Fast&Big, abbreviated as N2FB;

[0098] (12) When ΔT<0, S ΔT >1 or S ΔT <-1, 40%≤RH≤60%, the condensation state is recorded as Negative&Fast&Middle, abbreviated as N2FM;

[0099] (13) When ΔT<0, S ΔT >1 or S ΔT ​​​<-1, RH<40%, the condensation state is recorded as Negative&Fast&Small, abbreviated as N2FS1;

[0100] (14) When ΔT<0, S ΔT =1, RH>60%, the condensation state is recorded as Negative&Normal&Big, abbreviated as N2N1B;

[0101] (15) When ΔT<0, S ΔT =1, 40%≤RH≤60%, the condensation state is recorded as Negative&Normal&Middle, abbreviated as N2N1M;

[0102] (16) When ΔT<0, S ΔT =1, RH<40%, the condensation state is recorded as Negative&Normal&Small, abbreviated as N2N1S1;

[0103] (17) When ΔT<0, -1 ΔT When RH < 1 and RH > 60%, the condensation state is recorded as Negative & Slow & Big, abbreviated as N2S2B;

[0104] (18) When ΔT<0, -1 ΔT When RH < 1, 40% ≤ RH ≤ 60%, the condensation state is recorded as Negative & Slow & Middle, abbreviated as N2S2M;

[0105] (19) When ΔT<0, -1 ΔT When RH < 1 and RH < 40%, the condensation state is recorded as Negative & Slow & Small, abbreviated as N2S2S1.

[0106] It should be understood that the condensation status is recorded as nine cases: PFB, PFM, PFS1, PN1B, PN1M, PN1S1, PS2B, PS2M and PS2S1. Because the difference between the inner wall temperature of the box and the dew point temperature at the current moment is greater than 0, the corresponding target condensation state at this time is no condensation.

[0107] The condensation states are recorded as nine cases: N2FB, N2FM, N2FS1, N2N1B, N2N1M, N2N1S1, N2S2B, N2S2M and N2S2S1. Since the difference between the inner wall temperature and the dew point temperature at the current moment is less than 0, the corresponding target condensation state at this time is condensation.

[0108] ​​​When condensation is inferred from the terminal box environment data, the terminal box needs to be intervened to destroy the condensation. Therefore, in one possible implementation, when the target condensation state indicates that condensation has occurred inside the terminal box, the terminal box is heated.

[0109] For example, the terminal box may be heated by utilizing a heating module in the terminal box, and the working time of the heating module may be calculated according to the third mapping relationship.

[0110] The third mapping relationship is used to convert the condensation state into the corresponding heating time, which can be represented by Table 3.

[0111] Table 3

[0112]

[0113]

[0114] Referring to Table 3, when the condensation state is recorded as N2FB, the heating time can be determined to be (-2)+(-2)+(-2)=(-6), which means that 6 heating time units are required at this time. When the condensation state is recorded as PS2S1, the heating time can be determined to be 2+0+0=2, which means that there are still 2 time units left and condensation will not occur at this time.

[0115] In practical applications, after the heating module is activated, it is necessary to prevent the temperature and humidity in the terminal box from fluctuating frequently near the warning value, which would cause the heating module to start and stop frequently. Therefore, in some embodiments, after the terminal box is heated, a timer starts to measure the accumulated time. Then, when the accumulated time reaches a second preset time, the current environmental data of the terminal box at the current moment is re-obtained to re-determine the target condensation state of the terminal box.

[0116] Among them, the accumulated time is used to measure the heating time to prevent the heating equipment from being started and stopped frequently.

[0117] The second preset duration is a pre-set threshold for heating duration and can be flexibly set based on actual needs and the heating module's tolerance. For example, if the second preset duration is set to 1 hour, after the heating module has been operating for 1 hour, the terminal box temperature and humidity will be determined to be within the required range. This will then determine whether the module will continue to operate or stop, allowing for a timely assessment of the extent of damage to the heating module.

[0118] In practical applications, even if the condensation status indicator indicates that no condensation has occurred inside the terminal box, in order to avoid condensation in the terminal box and not being discovered in time, it is necessary to determine whether condensation may occur in the terminal box so as to facilitate timely maintenance of the terminal box equipment.

[0119] Therefore, in some embodiments, if the target condensation state indicates that no condensation has occurred inside the terminal box, and the current humidity inside the box is greater than the preset humidity and the current temperature change rate is greater than the preset temperature change rate, an early warning message is output. The early warning message is used to indicate that the terminal box will produce condensation within a first preset time period.

[0120] The preset humidity refers to a pre-set humidity threshold value, which is used to determine whether the humidity condition will cause condensation in the terminal box based on the acquired terminal box humidity.

[0121] The preset temperature change rate refers to a preset temperature change rate threshold value, which is used to determine whether a temperature change rate condition will cause condensation in the terminal box based on the acquired temperature change rate.

[0122] For example, according to the second mapping relationship, the condensation state in the terminal box can be divided into "RH>60%", "40%≤RH≤60%" and "RH<40%", and the condensation state can be divided into "|S ΔT |>1","|S ΔT |=1” and “|S ΔT |<1", and divided according to "ΔT>0", "ΔT=0", and "ΔT<0".

[0123] Because the higher the humidity in the box, the more likely it is to form condensation, so the preset humidity is set to be higher, that is, "RH ≥ 40%" is the preset humidity.

[0124] At the same time, the temperature change rate reflects the speed of change of the temperature difference, that is, the speed of change of the difference between the box inner wall temperature and the dew point temperature. When the temperature change rate is large, it can be reflected in the large change of the box inner wall temperature, which reflects that the greater the difference between the terminal box outer temperature and the terminal box inner temperature, the more likely condensation will occur. Therefore, the preset temperature change rate needs to be set larger, that is, "|S ΔT |≥1” is the preset temperature change rate.

[0125] Thus, the condensation status can be recorded as PFB, PFM, PN1B, or PN1M, and a warning message can be output. This warning message indicates that condensation will occur in the terminal box within a first preset time period. The warning message can be output via SMS, webpage, or phone call. After the warning message is output, it is necessary to continuously monitor whether the temperature difference is close to 0 to prevent condensation from occurring.

[0126] In practical applications, the heating module can be activated to adjust the temperature and humidity in the terminal box so that the inner wall temperature T3 of the terminal box is higher than the dew point temperature T0, and the temperature change rate is controlled. ΔT|<1, and the humidity inside the box RH<40%. In the case of condensation status marked as ZE, the terminal box inner wall temperature T3 has reached the dew point temperature T0, which is the critical point for condensation formation. It is recommended to heat it immediately.

[0127] The present application provides a method for determining the condensation state by calculating the difference between the current box wall temperature and the current dew point temperature to determine the current temperature difference. The method then calculates the difference between the box wall temperature and the dew point temperature at the previous moment, using the difference between the current and previous temperature differences as the target temperature difference. The current temperature change rate is determined as the ratio of the target temperature difference to the time interval. Finally, the target condensation state of the terminal box is evaluated based on the current temperature difference, the current temperature change rate, and the current humidity inside the box. This method comprehensively analyzes real-time environmental data and its changing trends, taking into account not only static temperature and humidity conditions but also dynamic change factors, thereby more accurately predicting condensation risk and addressing the issue of low accuracy in condensation state judgment.

[0128] Next, through Figure 4 The composition and principle of the temperature acquisition module are explained in detail.

[0129] Figure 4 This is a schematic diagram of the structure of the temperature acquisition module provided in the embodiment of the present application, as shown in FIG. Figure 4 As shown, the temperature acquisition module 120 includes a current source circuit 410, a resistance temperature detector 420, a low-temperature drift resistor 430, a preamplifier circuit 440, a difference circuit 450, a programmable amplifier circuit 460, a low-pass filter circuit 470, and an analog-to-digital conversion circuit 480.

[0130] The output end of the current source circuit 410 is connected to one end of the resistance temperature detector 420, the other end of the resistance temperature detector 420 is connected to one end of the low-temperature drift resistor 430, and the other end of the low-temperature drift resistor 430 is connected to the input end of the current source circuit 410. The preamplifier circuit 440 includes two sets of output and input ends. The output and input ends of one set are respectively connected to the two ends of the resistance temperature detector 420 to collect voltage signals at both ends of the resistance temperature detector 420, and the output and input ends of the other set are respectively connected to the two ends of the low-temperature drift resistor 430 to collect voltage signals at both ends of the low-temperature drift resistor 430. The two output ends of the preamplifier circuit 440 are connected to the two input ends of the difference circuit 450, the output end of the difference circuit 450 is connected to the input end of the programmable amplifier circuit 460, the output end of the programmable amplifier circuit 460 is connected to the input end of the low-pass filter circuit 470, the output end of the low-pass filter circuit 470 is connected to the input end of the analog-to-digital conversion circuit 480, and the output end of the analog-to-digital conversion circuit 480 is connected to the main controller 110.

[0131] The current source circuit 410 provides current to the resistance temperature detector 420 and the low-temperature drift resistor 430, and the preamplifier circuit 440 collects the voltage signals of the resistance temperature detector 420 and the low-temperature drift resistor 430 respectively. The difference circuit 450 calculates the difference between the two voltage signals, the programmable amplifier circuit 460 amplifies the voltage signal after the difference, the low-pass filter circuit 470 filters the amplified voltage signal, and the analog-to-digital conversion circuit 480 converts the filtered voltage signal into a digital signal. Finally, the main controller 110 accurately calculates the ambient temperature based on the digital signal, with a resolution of up to 0.01°C, so as to achieve high-precision temperature measurement, and ultimately solves the problem that the current terminal box temperature and humidity online monitoring device has low temperature measurement accuracy, thereby generating large measurement errors.

[0132] It should be understood that the working principle of the temperature acquisition module 120 is as follows: the current source circuit 410 provides current, the current flows out from the output end of the current source circuit 410, flows through the resistance temperature detector 420 and the low-temperature drift resistor 430 in sequence, and finally flows back from the input end of the current source circuit 410. The preamplifier circuit 440 collects the voltage signals across the resistance temperature detector 420 and the voltage signals across the low-temperature drift resistor 430. It should be noted that at 0°C, the resistance of the low-temperature drift resistor 430 is the same as that of the resistance temperature detector 420, but the resistance of the resistance temperature detector 420 will increase linearly with the increase in temperature. When the temperature rises, the resistance of the resistance temperature detector 420 will increase, the voltage of the resistance temperature detector 420 will also increase, while the resistance of the low-temperature drift resistor 430 will remain unchanged. The voltage does not change, so a voltage difference is generated between the resistance temperature detector 420 and the low-temperature drift resistor 430. The preamplifier circuit 440 collects the voltage signals at both ends of the resistance temperature detector 420 and the voltage signals at both ends of the low-temperature drift resistor 430. The difference circuit 450 calculates the difference between the two sets of voltage signals collected by the preamplifier circuit 440. The positive and negative signs of the voltage signals obtained after the difference are the positive and negative signs of the temperature. The voltage signals obtained after the difference are amplified to an appropriate level by the programmable amplifier circuit 460, and then the high-frequency signals in the signal are filtered out by the low-pass filter circuit 470. The DC voltage signal is converted into a digital signal by the analog-to-digital conversion circuit 480. Finally, the main controller 110 accurately calculates the temperature based on the digital signal with a resolution of up to 0.01°C, thereby achieving high-precision temperature measurement.

[0133] Figure 5 The structural diagram of the condensation warning and emergency treatment module provided in the embodiment of the present application is as follows: Figure 5As shown, if condensation is detected inside the box, a fault warning message is sent via a text message platform to the operator's handheld terminal 504 (a mobile device such as a mobile phone or tablet), providing maintenance personnel with a basis for repair. Handheld terminal 504 allows operators to read the current temperature and humidity, dew point temperature, the address of the main controller 501, and the operating status of the heating / ventilation of the terminal box during inspections, set the address and dew point temperature threshold, or query historical data from the monitoring terminal.

[0134] The operation and maintenance personnel use the handheld terminal 504 to read the information in the box. If they find that the electrical equipment is working abnormally, they can promptly connect to the main controller 501 through the communication module 502 and the background server 503 to receive the start and stop commands sent by the operation and maintenance personnel, and promptly perform corresponding actions according to the commands, instructing the on-site main controller 501 to start the heating module 505 to destroy the condensation conditions.

[0135] The heating module 505 can be designed based on the structure and size of the terminal box and the chassis. It can use an aluminum alloy heater, a condensing dehumidifier, a heating pipe, or other equipment, but this application does not limit this. The heating module 505 is used to remove moisture from the terminal box and the mechanism box to ensure healthy, continuous, and reliable operation of the equipment inside the box.

[0136] Figure 6 A schematic diagram of a method for determining condensation state provided in an embodiment of the present application Figure 3 ,like Figure 6 As shown, the method includes:

[0137] S601, obtaining terminal box environmental data, including terminal box external temperature, terminal box internal temperature, terminal box inner wall temperature, and terminal box internal humidity;

[0138] S602, analyzing the terminal box environment data through precise control algorithms;

[0139] S603: When it is determined that condensation occurs in the terminal box, the heating module is started;

[0140] S604. During monitoring of the terminal box, the heating module is started and stopped so that the temperature of the inner wall of the terminal box is always higher than the dew point temperature.

[0141] Figure 7 A schematic diagram of a condensation state determination device provided in an embodiment of the present application is shown in FIG. Figure 7 As shown, the condensation state determining device 70 provided in this embodiment includes:

[0142] The acquisition module 701 is used to obtain the current environmental data of the terminal box at the current moment, the current environmental data including the current box temperature, the current box humidity and the current box wall temperature;

[0143] A first determining module 702 is configured to determine a current dew point temperature of the terminal box at a current moment based on a current box temperature, a current box humidity, and a first mapping relationship, wherein the first mapping relationship is configured to represent a mapping relationship between the box temperature, the box humidity, and the dew point temperature;

[0144] The second determining module 703 is used to determine the target condensation state of the terminal box according to the current humidity in the box, the current box inner wall temperature, the current dew point temperature, and the box inner wall temperature and dew point temperature of the terminal box at the previous moment.

[0145] In one possible implementation, the second determination module 703 is also used to determine the difference between the current box inner wall temperature and the current dew point temperature as the current temperature difference; determine the difference between the box inner wall temperature and the dew point temperature of the terminal box at the previous moment as the temperature difference at the previous moment; determine the difference between the current temperature difference and the temperature difference at the previous moment as the target temperature difference; calculate the time interval between the current moment and the previous moment; determine the ratio between the target temperature difference and the time interval as the current temperature change rate; and calculate the target condensation state based on the current temperature difference, the current temperature change rate and the current humidity in the box.

[0146] In one possible implementation, the second determination module 703 is also used to determine the target condensation state based on the current temperature difference, the current temperature change rate, the current humidity in the box and the second mapping relationship. The second mapping relationship is used to represent the mapping relationship between the temperature difference, the temperature change rate, the humidity in the box and the condensation state.

[0147] In a possible implementation, the second determining module 703 is further configured to heat the terminal box when the target condensation state indicates that condensation has occurred inside the terminal box.

[0148] In one possible implementation, the second determination module 703 is also used to output a warning message if the target condensation state indicates that no condensation has occurred inside the terminal box, and the current humidity inside the box is greater than the preset humidity and the current temperature change rate is greater than the preset temperature change rate. The warning message is used to indicate that the terminal box will produce condensation within a first preset time period.

[0149] In one possible implementation, the second determination module 703 is also used to start timing through a timer after heating the terminal box to obtain the accumulated time; when the accumulated time reaches a second preset time, the current environmental data of the terminal box at the current moment is obtained again to re-determine the target condensation state of the terminal box.

[0150] The condensation state determination device provided in this embodiment can execute the method provided in the above method embodiment. Its implementation principle and technical effects are similar and will not be described in detail in this embodiment.

[0151] Figure 8 This is a schematic diagram of the structure of the electronic device provided in the embodiment of the present application. Figure 8 As shown, the electronic device 80 provided in this embodiment includes: at least one processor 801 and a memory 802. Optionally, the electronic device 80 further includes a communication component 803. The processor 801, the memory 802 and the communication component 803 are connected via a bus 804.

[0152] During the specific implementation process, at least one processor 801 executes the computer-executable instructions stored in the memory 802, so that the at least one processor 801 performs the above method.

[0153] The specific implementation process of the processor 801 can be found in the above method embodiment. Its implementation principle and technical effects are similar and will not be repeated here in this embodiment.

[0154] In the above embodiments, it should be understood that the processor may be a central processing unit (CPU), other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASICs), etc. A general-purpose processor may be a microprocessor or any conventional processor. The steps of the method disclosed in the present invention may be directly executed by a hardware processor or by a combination of hardware and software modules in the processor.

[0155] The memory may include a high-speed memory (Random Access Memory, RAM), and may also include a non-volatile memory (NVM), such as at least one disk memory.

[0156] The bus can be an Industry Standard Architecture (ISA) bus, a Peripheral Component Interconnect (PCI) bus, or an Extended Industry Standard Architecture (EISA) bus. Buses can be classified into address buses, data buses, and control buses. For ease of illustration, the buses in the drawings of this application are not limited to just one bus or just one type of bus.

[0157] The present application also provides a computer program product, including a computer program, which implements the above method when executed by a processor.

[0158] The present application also provides a computer-readable storage medium, in which computer-executable instructions are stored. When a processor executes the computer-executable instructions, the above method is implemented.

[0159] The above-mentioned readable storage medium can be implemented by any type of volatile or non-volatile memory device or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic disk or optical disk. The readable storage medium can be any available medium that can be accessed by a general-purpose or special-purpose computer.

[0160] An exemplary readable storage medium is coupled to a processor so that the processor can read information from the readable storage medium and write information to the readable storage medium. Of course, the readable storage medium can also be an integral part of the processor. The processor and the readable storage medium can be located in an application specific integrated circuit (ASIC). Of course, the processor and the readable storage medium can also exist in the device as discrete components.

[0161] The division of units is merely a logical functional division; actual implementations may employ alternative divisions, such as combining or integrating multiple units or components into another system, or omitting or disabling certain features. Furthermore, any direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection between devices or units, either through an interface, electrical, mechanical, or other means.

[0162] Units described as separate components may or may not be physically separate, and components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of these units may be selected to achieve the purpose of this embodiment according to actual needs.

[0163] In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0164] If the function is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, 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. The computer software product is stored in a storage medium and includes several instructions for enabling a computer device (which can be a personal computer, server, or network device, etc.) to execute all or part of the steps of the various embodiments 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, and other media that can store program code.

[0165] Those skilled in the art will appreciate that all or part of the steps in the above-described method embodiments can be implemented using hardware associated with program instructions. The aforementioned program can be stored in a computer-readable storage medium. When executed, the program performs the steps of the above-described method embodiments. The aforementioned storage medium includes various media capable of storing program code, such as ROM, RAM, magnetic disks, or optical disks.

[0166] Finally, it should be noted that those skilled in the art will readily identify other embodiments of the present invention after considering the specification and practicing the invention disclosed herein. The present invention is intended to cover any variations, uses, or adaptations of the present invention that follow the general principles of the present invention and include common knowledge or customary techniques in the art not disclosed herein. The present invention is not limited to the precise structure described above and illustrated in the accompanying drawings, and various modifications and variations may be made without departing from the scope thereof. The scope of the present invention is limited solely by the appended claims.

Claims

1. A method for determining condensation status, characterized in that: include: Acquire current environmental data of the terminal box at the current moment, wherein the current environmental data includes current box internal temperature, current box internal humidity, and current box internal wall temperature; determining a current dew point temperature of the terminal box at a current moment according to the current box internal temperature, the current box internal humidity, and a first mapping relationship, wherein the first mapping relationship is used to represent a mapping relationship between the box internal temperature, the box internal humidity, and the dew point temperature; The target condensation state of the terminal box is determined according to the current humidity in the box, the current box inner wall temperature, the current dew point temperature, and the box inner wall temperature and dew point temperature of the terminal box at a previous moment.

2. The method according to claim 1, characterized in that The determining the target condensation state of the terminal box according to the current humidity in the box, the current box inner wall temperature, the current dew point temperature, and the box inner wall temperature and dew point temperature of the terminal box at a previous moment includes: Determine the difference between the current box inner wall temperature and the current dew point temperature as the current temperature difference; Determine the difference between the box inner wall temperature and the dew point temperature of the terminal box at the previous moment as the temperature difference at the previous moment; Determine the difference between the current temperature difference and the temperature difference at the previous moment as the target temperature difference; Calculating the time interval between the current moment and the previous moment; determining the ratio between the target temperature difference and the time interval as the current temperature change rate; The target condensation state is calculated according to the current temperature difference, the current temperature change rate, and the current humidity in the chamber.

3. The method according to claim 2, characterized in that The calculating the target condensation state according to the current temperature difference, the current temperature change rate, and the current humidity in the chamber includes: The target condensation state is determined according to the current temperature difference, the current temperature change rate, the current humidity in the box and a second mapping relationship, where the second mapping relationship is used to represent the mapping relationship between the temperature difference, the temperature change rate, the humidity in the box and the condensation state.

4. The method according to any one of claims 1 to 3, characterized in that The method further comprises: When the target condensation state indicates that condensation has occurred inside the terminal box, the terminal box is heated.

5. The method according to any one of claims 1 to 3, characterized in that The method further comprises: If the target condensation state indicates that no condensation has occurred inside the terminal box, and the current humidity inside the box is greater than the preset humidity and the current temperature change rate is greater than the preset temperature change rate, an early warning message is output, and the early warning message is used to indicate that condensation will occur in the terminal box within a first preset time period.

6. The method according to claim 4, characterized in that The method further comprises: After heating the terminal box, starting timing by a timer and obtaining a cumulative time; When the accumulated time reaches a second preset time, the current environmental data of the terminal box at the current moment is reacquired to re-determine the target condensation state of the terminal box.

7. A condensation state determination device, characterized in that: include: An acquisition module is used to acquire the current environmental data of the terminal box at the current moment, wherein the current environmental data includes the current temperature inside the box, the current humidity inside the box, and the current temperature of the inner wall of the box; a first determining module, configured to determine a current dew point temperature of the terminal box at a current moment based on the current box temperature, the current box humidity, and a first mapping relationship, wherein the first mapping relationship is used to represent a mapping relationship between the box temperature, the box humidity, and the dew point temperature; The second determination module is used to determine the target condensation state of the terminal box according to the current humidity in the box, the current box inner wall temperature, the current dew point temperature, and the box inner wall temperature and dew point temperature of the terminal box at the previous moment.

8. An electronic device, characterized in that: include: Memory, processor; The memory stores computer-executable instructions; The processor executes the computer-executable instructions stored in the memory, so that the processor performs the method according to any one of claims 1 to 6.

9. A computer-readable storage medium, characterized in that The computer-readable storage medium stores computer-executable instructions, which are used to implement the method according to any one of claims 1 to 6 when executed by a processor.

10. A computer program product, characterized in that The invention comprises a computer program, which implements the method according to any one of claims 1 to 6 when the computer program is executed by a processor.

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