A method, device, electronic equipment, medium, and program for automatic temperature and humidity control in an electronic equipment room of a power plant.

By setting up multiple temperature and humidity measurement points in the electronic equipment room of the power plant and connecting them to the DCS control system, an automated adjustment and alarm mechanism is realized, which solves the problem of single sampling and manual inspection in the existing technology of temperature and humidity monitoring, and improves the stability and safety of equipment operation.

CN119861775BActive Publication Date: 2025-10-31HUBEI ENERGY GRP EZHOU POWER GENERATION CO LTD
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Patent Information

Application Number
CN202411971661.9
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-12-30
Publication Date
2025-10-31
Estimated Expiration
2044-12-30

AI Technical Summary

Technical Problem

Existing temperature and humidity monitoring in power plant electronic equipment rooms relies on local temperature and humidity meters. The sampling location is limited and requires manual inspection, which makes it impossible to adjust in a timely manner and affects the safe operation of the equipment.

Method used

Multiple temperature and humidity measurement signals are connected to the DCS control system, and automatic adjustment is achieved through a specific control algorithm. An alarm mechanism and a quality detection module are set to ensure that the temperature and humidity are within the set range.

Benefits of technology

It reduces the need for manual inspections, improves work efficiency, ensures safe operation of equipment in a stable environment, and enables timely detection and handling of abnormal situations.

✦ Generated by Eureka AI based on patent content.

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Abstract

This invention provides a method, device, electronic equipment, medium, and program for automatic temperature and humidity control in an electronic equipment room of a power plant, relating to the field of automatic temperature and humidity control technology. The method includes the following steps: S1, acquiring temperature and humidity reference data and the status of temperature and humidity regulating devices in the electronic equipment room to be monitored, and determining the monitoring range of temperature and humidity based on the reference data; S2, setting multiple temperature and humidity measuring points in the electronic equipment room to be monitored, and connecting the signals from these multiple measuring points to a DCS control system. Through the coordination of the above structures, the following beneficial effects are achieved: First, by connecting the temperature and humidity measuring point signals to the DCS system, the temperature and humidity in the electronic equipment room can be automatically controlled by the DCS system; second, setting multiple temperature and humidity measuring points in the electronic equipment room can comprehensively reflect the temperature and humidity conditions between the devices; third, it can automatically start or stop operation according to the command signals of the DCS system, ensuring that the automatic temperature and humidity adjustment reaches a reasonable range; fourth, the introduction of a quality detection module and an ALM alarm module can promptly issue alarms when temperature and humidity signals are abnormal.
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Description

Technical Field

[0001] This invention relates to the field of automatic temperature and humidity control technology, and in particular to an automatic temperature and humidity control method, device, electronic equipment, medium and program for electronic equipment rooms in power plants. Background Technology

[0002] Currently, temperature and humidity monitoring in power plant electronic equipment rooms mainly relies on local thermometers and hygrometers for display and monitoring. The temperature range in these rooms is typically 22-26℃, and the humidity range is 40%-60%. These thermometers and hygrometers are mounted on the walls of the equipment rooms, and maintenance personnel need to check them daily to prevent excessively high or low temperatures or humidity from affecting the electronic equipment and consequently impacting the safe operation of the generating units.

[0003] The thermometer and hygrometer are hung on the wall at the entrance of the electronics room. The sampling location is limited and cannot fully reflect the temperature and humidity of the equipment room. Moreover, maintenance personnel need to check them every day, which takes up their working time. If maintenance personnel cannot check the temperature and humidity of the equipment room in time and adjust the central air conditioning, it can easily lead to high temperature or humidity in the equipment room cabinets, thereby affecting the safe operation of the electronic equipment in the cabinets. Summary of the Invention

[0004] In view of the shortcomings of the prior art, the technical problem to be solved by the present invention is to provide a method, device, electronic equipment, medium and program for automatic temperature and humidity control in the electronic equipment room of a power plant, which can connect the temperature and humidity measurement point signals to the DCS control system cabinet to realize automatic temperature and humidity regulation control of electronic equipment.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is as follows: The present invention provides an automatic temperature and humidity control method for an electronic equipment room in a power plant, comprising the following steps:

[0006] S1. Obtain the temperature and humidity reference data and the status of the temperature and humidity control devices among the electronic devices to be monitored, and determine the monitoring range of temperature and humidity based on the temperature and humidity reference data.

[0007] S2. Set up multiple temperature and humidity measuring points between the electronic devices to be monitored, and connect the signals from the multiple temperature and humidity measuring points to the DCS control system.

[0008] S3. Deploy specific control algorithms through the DCS control system to automate the status monitoring and adjustment of the temperature and humidity control devices between electronic devices, and ensure that the temperature and humidity reference data are maintained within the set range.

[0009] S4. Set an alarm mechanism. When the DCS control system detects an abnormal temperature and humidity measurement point signal, the alarm mechanism will be triggered.

[0010] In the preferred embodiment, in step S2, the temperature and humidity measuring points include temperature measuring points and humidity measuring points, which are distributed at different locations among the electronic devices, including the four corners and the center.

[0011] In a preferred embodiment, step S3 further includes the following step:

[0012] The analog signals from the temperature and humidity measurement points are input to the FX function generator. The FX function generator removes data outside the reasonable range and adjusts in real time based on changes in the analog signals. The processed signal is then output to the analog switcher T. The analog switcher T inputs the received signal to the high / low limit block H / L. The high / low limit block H / L compares the signal with the preset threshold range.

[0013] That is, the FX function generator performs discrimination on the analog signals from the input temperature and humidity measurement points, and sets the input signal as... Its pre-set reasonable range is ,when At that time, output directly The analog quantity switch T is connected to the analog quantity switch, and is expressed by the following formula:

[0014] ;

[0015] in, This represents the previous normal output value;

[0016] The constant acquisition module A and the quality detection module TSTQ are used to detect the quality of the analog signal in real time, obtaining a detection result of "0" or "1", and transmitting the quality detection result to the analog switcher T. If the analog switcher T receives an output value of "0" from the quality detection module TSTQ, it outputs the current signal received by the FX function generator to the high / low limit block H / L for comparison. If the signal value deviates from the threshold range, the high / low limit block H / L triggers the corresponding command signal to automatically control the start and stop of the temperature and humidity control device; if the signal value is within the threshold range, it is determined to be a normal signal, and the monitoring process continues in a loop.

[0017] If the analog quantity switcher T receives the output value of the quality detection module TSTQ as "1", then it switches the output source and selects the output value of the constant module A to output to the high and low limit block H / L;

[0018] If the signal value deviates from the threshold range, the processing method is signal correction, which corrects the deviating signal according to the rules set by the DCS control system.

[0019] The processed signal is then input back to the high / low limit block H / L, and the process is repeated. In a preferred embodiment, step S4 further includes the following step:

[0020] The alarm mechanism includes an OR module and an ALM alarm module. After the alarm mechanism is triggered, the OR module sends an alarm signal to the ALM alarm module to remind the operators to handle the abnormal situation.

[0021] In the preferred embodiment, in step S3, if the signal deviates from the threshold range but the deviation is small, a linear regression method is used to correct the abnormal signal based on the trend of historical normal signals, so that the abnormal signal returns to a reasonable threshold range, and then it is passed to the high / low limit block H / L. The specific steps are as follows:

[0022] Let a certain time period be the past. Each sampling period, and collects past data. Historical normal signal data for each sampling period, with a deviation ratio threshold set. Let the temperature signal value sequence for each period be... The sequence of humidity signal values ​​is And set the current abnormal temperature and humidity signal data, assuming the abnormal temperature signal is... Abnormal humidity signal is ;

[0023] To synthesize abnormal temperature signals and abnormal humidity signals are A weighted summation method is used, with temperature as the weight. Humidity weighting Then the combined temperature and humidity signal value sequence for:

[0024] ;

[0025] in, ;

[0026] The comprehensive abnormal temperature and humidity signal value is obtained according to formula (1). for:

[0027] ;

[0028] Based on formula (2), if the following conditions are met If the deviation of the abnormal temperature and humidity signal is small, it can be corrected.

[0029] in, This is the previous normal comprehensive temperature and humidity signal value. and These are the upper and lower limits of the pre-set normal comprehensive temperature and humidity signal threshold range;

[0030] Let the time series be the independent variable. , The combined temperature and humidity signal values ​​are the dependent variable. Establish a linear regression model:

[0031] ;

[0032] in It is the intercept. It's the slope. It is an error term;

[0033] Estimate using the least squares method and linear regression model The formula aims to find the best-fitting straight line for the change of historical comprehensive temperature and humidity signal values ​​over time, so as to use the trend to correct abnormal temperature and humidity signals.

[0034] Based on the established linear regression model To correct the overall abnormal temperature and humidity signal values hour;

[0035] First, determine the time point corresponding to the abnormal signal. ;

[0036] And let the current one be the number. If an anomaly occurs in any sampling period, then ;

[0037] Will Substitute into the linear regression model The corrected comprehensive temperature and humidity signal prediction values ​​are obtained as follows:

[0038] ;

[0039] Next, based on temperature weighting Humidity weight Back-reaming the corrected temperature signal prediction value Humidity signal prediction value :

[0040] Corrected temperature signal prediction value : ;

[0041] Corrected humidity signal prediction value : ;

[0042] Finally, the corrected temperature signal prediction values ​​were verified. Humidity signal prediction value Within the normal signal threshold range;

[0043] like , Then the temperature signal prediction value Humidity signal prediction value The corrected normal signal is passed to the high and low limit blocks H / L; otherwise, the normal signal output of the previous cycle is maintained.

[0044] in, and To pre-set the upper and lower limits of the normal signal threshold range for temperature, and The upper and lower limits of the normal signal threshold range for humidity are preset;

[0045] The normal signal is output to the high / low limit block H / L for upper and lower limit comparison. The DCS system then uses a threshold comparison algorithm to determine the start and stop of the temperature and humidity control device. The control signal... It can be determined using the following formula:

[0046] ;

[0047] in, and These are the humidity and temperature monitored by the temperature and humidity control device, respectively. and The control signals represent the upper limits for humidity and temperature, respectively. Used to detect when humidity exceeds a set humidity limit. Or the temperature exceeds the set high temperature limit. If the signal is triggered, a command signal "1" is sent to activate the dehumidification or cooling function; otherwise, the command signal is not triggered and the temperature and humidity control device remains in its current operating state.

[0048] The high humidity limit Set to 60%, the lower limit for humidity. Set to 40%; High temperature limit Set to 26℃, lower temperature limit. Set to 22℃;

[0049] Specifically, when the humidity exceeds 60% or falls below 40%, the control signal... Send command signal "1" to the temperature and humidity control device to start or stop the dehumidification function;

[0050] When the temperature exceeds 26℃ or falls below 22℃, the control signal... Send command signal "1" to the temperature and humidity control device to start or stop the cooling function.

[0051] In the preferred embodiment, based on formula (3), a quality detection algorithm is used in step S4 to evaluate the quality of the temperature and humidity measurement point signals, which can reduce erroneous judgments and improve signal quality. Determined by the following formula:

[0052] ;

[0053] Where Q represents signal quality, used to determine the quality status of the temperature and humidity measurement point signal. When the signal quality is good, it outputs "0" to the analog switch T. The analog switch T holds the output value of the FX function generator, indicating normal operation. This is because the function of the FX function generator is to directly output to the analog switch T when the analog value is within the set range; if the analog value deviates from the function correspondence, it outputs the previous normal value to the analog switch T.

[0054] "*" indicates bad quality. When the signal is of bad quality, "1" is output to the analog switcher T. The analog switcher T will perform an abnormal signal cutoff operation and select the constant module A signal output. This is because the logic of the quality detection module TSTQ is: when the input is of good quality, the output is 0, and the analog switcher T selects the output of the FX function generator as the output value; when the input is of bad quality, the output is 1, and the analog switcher T selects the output of function block A as the output value. Based on formula (4), in the DCS control system, the analog switcher T receives raw data from multiple temperature and humidity measurement points and, based on signal quality... Once the final output is determined, the signal quality... The final output formula is as follows:

[0055] ;

[0056] in, This is represented as the current input signal. This represents the previous normal output signal.

[0057] In a preferred embodiment, the present invention provides an automatic temperature and humidity control device for an electronic equipment room in a power plant, comprising:

[0058] The temperature and humidity measurement module is used to set up multiple temperature and humidity measurement points in the electronic equipment room of the power plant, including temperature measurement points and humidity measurement points, which are distributed in different locations in the electronic equipment room, such as the four corners and the middle position, to collect temperature and humidity data and connect the temperature and humidity measurement point signals to the DCS control system cabinet.

[0059] Temperature and humidity control devices are used to regulate the temperature and humidity between electronic devices according to instructions from the DCS control system, such as dehumidification, heating or cooling.

[0060] The control unit, which is located within the DCS control system, is used to deploy specific control algorithms, receive signals from the temperature and humidity measurement point modules, so as to realize the automation of the DCS control system to monitor and adjust the status of the temperature and humidity adjustment devices between electronic devices, and to ensure that the temperature and humidity reference data are maintained within the set range.

[0061] An alarm device is used to set up an alarm mechanism. When the control unit detects an abnormal signal from the temperature and humidity measuring point, the alarm mechanism is triggered.

[0062] The TSTQ quality detection module monitors the quality of temperature and humidity measurement point signals in real time and issues alarm information when abnormal temperature and humidity measurement point signals occur.

[0063] The computer system is used to store and process temperature and humidity data, run relevant control algorithms and programs, coordinate the work between various modules, and perform in-depth mining and analysis of historical temperature and humidity data.

[0064] The computer system also includes an analysis unit, which performs multi-dimensional analysis of temperature and humidity data based on various data analysis algorithms, such as data trend analysis, periodic analysis, and abnormal data identification, to provide data support for the optimization of temperature and humidity control strategies.

[0065] When the computer system receives an external input command for constant module A, it recognizes it as a constant setting operation for constant module A. The analysis unit executes the constant update process, which can maintain normal temperature and humidity control when the temperature and humidity measurement point signals are abnormal.

[0066] The temperature and humidity measuring module, temperature and humidity regulating device, control unit, alarm device, quality detection module TSTQ, FX function generator, constant module A, and computer system cooperate with each other to execute the automatic temperature and humidity control method for power plant electronic equipment as described above.

[0067] In a preferred embodiment, the present invention also provides an electronic device, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the program to perform the automatic temperature and humidity control method for power plant electronic equipment as described above.

[0068] In a preferred embodiment, the present invention also provides a computer-readable storage medium having a computer program stored thereon, wherein the program is executed by a processor for performing the automatic temperature and humidity control method for power plant electronic equipment as described above.

[0069] In a preferred embodiment, the present invention further provides a computer program product, wherein when the computer-readable instructions are executed by one or more processors, the one or more processors cause the one or more processors to perform the automatic temperature and humidity control method for power plant electronic equipment as described above.

[0070] This invention provides a method, device, electronic equipment, medium, and program for automatic temperature and humidity control in the electronic equipment room of a power plant. Through the coordination of the above structures, the following beneficial effects are achieved:

[0071] First, by integrating temperature and humidity measurement signals into the DCS system, the DCS can automatically control the temperature and humidity between electronic devices, reducing the need for manual inspections, improving the efficiency of maintenance personnel, and ensuring the safe and stable operation of the equipment in a favorable environment. Second, setting up multiple temperature and humidity measurement points in the electronic devices provides a comprehensive view of the temperature and humidity conditions, avoiding the limitations of single sampling locations. Third, the system can automatically start or stop temperature and humidity control devices based on DCS system commands, ensuring that automatic temperature and humidity adjustment reaches a reasonable range. This avoids delays and errors caused by manual inspections and adjustments, preventing abnormal temperature and humidity conditions and ensuring environmental stability within the electronic devices. Fourth, the introduction of a quality detection module, an ALM alarm module, and high / low limit blocks (H / L) enables timely alarms when temperature and humidity signals are abnormal, alerting operators to take action and ensuring safe equipment operation. Attached Figure Description

[0072] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0073] Figure 1 This is a flowchart of the present invention.

[0074] Figure 2 This is the logic control diagram for humidity regulation in this invention;

[0075] Figure 3 This is the logic control diagram for temperature regulation in this invention;

[0076] Figure 4 This is a system block diagram of the present invention;

[0077] Figure 5 This is a structural diagram of the electronic device of the present invention. Detailed Implementation

[0078] To better understand the purpose, structure, and function of this invention, the embodiments and features described herein can be combined with each other without conflict. The invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0079] Example 1

[0080] like Figures 1 to 3 As shown, the present invention provides an automatic temperature and humidity control method for an electronic equipment room in a power plant, comprising the following steps:

[0081] S1. Obtain the temperature and humidity reference data and the status of the temperature and humidity control devices among the electronic devices to be monitored, and determine the monitoring range of temperature and humidity based on the temperature and humidity reference data.

[0082] Specifically, the temperature and humidity baseline data can be determined by analyzing historical temperature and humidity data between electronic devices and the temperature and humidity range. For example, in this embodiment, the optimal temperature range for normal operation of the electronic device is between 22℃ and 26℃, and the humidity range is between 40% and 60%. Based on these temperature and humidity baseline data, the specific temperature and humidity monitoring range is determined. This range should be appropriately widened by a certain percentage based on the baseline data to take into account factors such as actual environmental fluctuations and sensor measurement errors, and to ensure that the system will not frequently trigger adjustment actions due to small fluctuations.

[0083] Furthermore, the embodiments of this application determine the temperature and humidity reference data and monitoring range by comprehensively considering multiple factors, which can provide a basis for subsequent precise control, avoid over-adjustment, improve system stability and reliability, ensure that electronic equipment operates in a suitable temperature and humidity environment, and reduce the risk of equipment failure due to abnormal temperature and humidity.

[0084] During implementation, historical data, reference standards, and equipment requirements are collected to determine baseline data. Then, based on sensor characteristics and experience with environmental fluctuations, the boundary values ​​of the monitoring range are determined, which serve as the reference standard for subsequent judgments on whether temperature and humidity are abnormal.

[0085] S2. Multiple temperature and humidity measuring points are set up in the room of electronic equipment to be monitored. The temperature and humidity measuring points are distributed in different locations in the room, including the four corners and the middle. This distribution can comprehensively and accurately reflect the temperature and humidity conditions in different areas of the room. For example, the heat dissipation or moisture conditions in the corners of the room may be different from those in the middle. By using multiple measuring points, the situation of local temperature and humidity abnormalities not being detected in time can be avoided. The signals from multiple temperature and humidity measuring points are connected to the DCS control system to achieve centralized monitoring and automated control. The DCS control system, as the core hub of the entire control process, can quickly process and analyze a large number of measuring point signals.

[0086] Furthermore, the embodiments of this application can comprehensively monitor the temperature and humidity between electronic devices by using temperature and humidity measuring points distributed in multiple locations, promptly detect local anomalies, provide detailed data for precise adjustment, improve the accuracy of overall environmental temperature and humidity control, and reduce the probability of equipment failure caused by local temperature and humidity problems.

[0087] In practice, based on the layout of electronic equipment and the characteristics of heat and humidity distribution, temperature and humidity measuring points are set at key locations. The measuring point sensors convert the physical quantities of temperature and humidity into electrical signals, which are then transmitted to the signal acquisition port of the DCS control system through lines to achieve signal access for subsequent processing and analysis.

[0088] S3. Deploy specific control algorithms through the DCS control system to automate the status monitoring and adjustment of the temperature and humidity control devices between electronic devices, and ensure that the temperature and humidity reference data are maintained within the set range. The specific steps are as follows:

[0089] S31. The analog signal from the temperature and humidity measuring point is received through the FX function generator. The FX function generator plays an important role. According to the preset function conversion rules, it performs preliminary processing and conversion on the raw analog signal collected by the temperature and humidity measuring point. Since the raw signal collected by the temperature and humidity sensor may have problems such as range mismatch, weak signal or certain interference, the FX function generator can convert it into a standard format signal that meets the processing requirements of the subsequent modules. Furthermore, the signal range is adjusted to the signal range of 0-10V or 4-20mA, and some noise interference is removed through filtering and other algorithms. Then, the output is adjusted to the analog switcher T in real time based on the changes in the analog signal.

[0090] Furthermore, in this embodiment, the original signal is preprocessed using an FX function generator to ensure that the signal meets the input requirements of subsequent modules, thereby improving signal quality, reducing misjudgments caused by signal problems, enhancing the accuracy and stability of the system's temperature and humidity signal processing, and ensuring that control decisions are based on reliable signal data.

[0091] S32. The analog signal from the temperature and humidity measurement point is input to the FX function generator. The FX function generator removes data outside the reasonable range and adjusts in real time based on the changes in the analog signal. The processed signal is output to the analog switcher T. The analog switcher T inputs the received signal to the high and low limit block H / L. The high and low limit block H / L compares the signal with the preset threshold range.

[0092] That is, the FX function generator performs discrimination on the analog signals from the input temperature and humidity measurement points, and sets the input signal as... Its pre-set reasonable range is ,when At that time, output directly The analog quantity switch T is connected to the analog quantity switch, and is expressed by the following formula:

[0093] ;

[0094] in, This represents the previous normal output value;

[0095] In this embodiment, the threshold range is set based on the sensor's accuracy, the reasonable fluctuation range of temperature and humidity during normal operation of electronic devices, and actual operating experience. Furthermore, for temperature signals, the temperature sensor accuracy is ±0.5℃, the normal operating temperature fluctuation range between electronic devices is 22℃-26℃, and the actual temperature is between 21.5℃-22.5℃, so the threshold range is set to 20℃-28℃. For humidity signals, the humidity sensor accuracy is ±2%, the normal operating humidity fluctuation range between electronic devices is 38%-62%, and the actual humidity range is between 42%-58%, so the threshold range is set to 40%-60%.

[0096] The constant acquisition module A and the quality detection module TSTQ are used to detect the quality of the analog signal in real time, obtaining a detection result of "0" or "1", and transmitting the quality detection result to the analog switcher T. If the analog switcher T receives an output value of "0" from the quality detection module TSTQ, it outputs the current signal received by the FX function generator to the high / low limit block H / L for comparison. If the signal value deviates from the threshold range, the high / low limit block H / L triggers the corresponding command signal to automatically control the start and stop of the temperature and humidity control device; if the signal value is within the threshold range, it is determined to be a normal signal, and the monitoring process continues in a loop.

[0097] If the analog quantity switcher T receives the output value of the quality detection module TSTQ as "1", then it switches the output source and selects the output value of the constant module A to output to the high and low limit block H / L;

[0098] If the signal value deviates from the threshold range, the processing method is signal correction, which corrects the deviating signal according to the rules set by the DCS control system.

[0099] The processed signal is then input back into the high / low limit block H / L, and the process is repeated. If the signal deviates from the threshold range but the deviation is small, a deviation ratio threshold is set. The threshold is set at 10%. If a signal exceeds the threshold range but the difference from the threshold boundary is within 10% of the threshold range, the deviation is considered small. A linear regression method is used, and the abnormal signal is corrected based on the trend of historical normal signals, bringing the abnormal signal back to a reasonable threshold range before being passed to the high / low limit block H / L. The specific steps are as follows:

[0100] Let a certain time period be the past. Each sampling period, and collects past data. Historical normal signal data for each sampling period, with a deviation ratio threshold set. Let the temperature signal value sequence for each period be... The sequence of humidity signal values ​​is And set the current abnormal temperature and humidity signal data, assuming the abnormal temperature signal is... Abnormal humidity signal is ;

[0101] To synthesize abnormal temperature signals and abnormal humidity signals are A weighted summation method is used, with temperature as the weight. Humidity weighting Then the combined temperature and humidity signal value sequence for:

[0102] ;

[0103] in, ;

[0104] The comprehensive abnormal temperature and humidity signal value is obtained according to formula (1). for:

[0105] ;

[0106] Based on formula (2), if the following conditions are met If the deviation of the abnormal temperature and humidity signal is small, it can be corrected.

[0107] in, This is the previous normal comprehensive temperature and humidity signal value. and These are the upper and lower limits of the pre-set normal comprehensive temperature and humidity signal threshold range;

[0108] Let the time series be the independent variable. , The combined temperature and humidity signal values ​​are the dependent variable. Establish a linear regression model:

[0109] Linear regression model The formula is as follows:

[0110] ;

[0111] in It is the intercept. It's the slope. It is an error term;

[0112] Estimate using the least squares method and The value of is given by the following formula:

[0113] ;

[0114] ;

[0115] in, , ;

[0116] Linear regression model The formula aims to find the best-fitting straight line for the change of historical comprehensive temperature and humidity signal values ​​over time, so as to use the trend to correct abnormal temperature and humidity signals.

[0117] Based on the established linear regression model To correct the overall abnormal temperature and humidity signal values hour;

[0118] First, determine the time point corresponding to the abnormal signal. ;

[0119] And let the current one be the number. If an anomaly occurs in any sampling period, then ;

[0120] Will Substitute into the linear regression model The corrected comprehensive temperature and humidity signal prediction values ​​are obtained as follows:

[0121] ;

[0122] Next, based on temperature weighting Humidity weight Back-reaming the corrected temperature signal prediction value Humidity signal prediction value :

[0123] Corrected temperature signal prediction value : ;

[0124] Corrected humidity signal prediction value : ;

[0125] Finally, the corrected temperature signal prediction values ​​were verified. Humidity signal prediction value Within the normal signal threshold range;

[0126] like , Then the temperature signal prediction value Humidity signal prediction value The corrected normal signal is passed to the high and low limit blocks H / L; otherwise, the normal signal output of the previous cycle is maintained.

[0127] in, and To pre-set the upper and lower limits of the normal signal threshold range for temperature, and The upper and lower limits of the normal signal threshold range for humidity are preset;

[0128] When a normal signal is input to the high / low limit block H / L for upper and lower limit comparison, the high / low limit block H / L triggers a corresponding command signal. The DCS system then uses a threshold comparison algorithm to determine the start / stop of the temperature and humidity control device, and the control signal... It can be determined using the following formula:

[0129] ;

[0130] in, and These are the humidity and temperature monitored by the temperature and humidity control device, respectively. and The control signals represent the upper limits for humidity and temperature, respectively. Used to detect when humidity exceeds a set humidity limit. Or the temperature exceeds the set high temperature limit. If the signal is triggered, a command signal "1" is sent to activate the dehumidification or cooling function; otherwise, the command signal is not triggered, and the temperature and humidity control device remains in its current operating state.

[0131] The high humidity limit Set to 60%, the lower limit for humidity. Set to 40%; High temperature limit Set to 26℃, lower temperature limit. Set to 22℃;

[0132] Specifically, when the humidity exceeds 60% or falls below 40%, the control signal... Send command signal "1" to the temperature and humidity control device to start or stop the dehumidification function;

[0133] When the temperature exceeds 26℃ or falls below 22℃, the control signal... Send command signal "1" to the temperature and humidity control device to start or stop the cooling function.

[0134] Furthermore, the embodiments of this application can effectively identify abnormal signals through a threshold comparison algorithm. For abnormal signals with small deviations, linear regression correction is used, which can restore the accuracy of the signal to a certain extent, reduce malfunctions caused by abnormal signals, and maintain the continuity and stability of temperature and humidity regulation. For severe abnormal signals, the processing method can prevent erroneous signals from affecting the system, ensure that the temperature and humidity regulation device works based on reliable signals, and improve the system's adaptability and robustness to various signal conditions.

[0135] In practice, the FX function generator compares the received signal with a preset threshold range. If the signal exceeds the threshold, it is considered abnormal and processed according to the rules. For small deviation abnormal signals, historical data is first collected to establish a linear regression model. The model is then used to predict and correct the value based on the current abnormal signal time point. The signal is then restored to a temperature and humidity signal, and the range is verified before transmission. Normal signals are directly transmitted to the analog quantity switcher T, and then to the high / low limit block H / L for comparison. The temperature and humidity control device is started and stopped according to the high and low limit range.

[0136] S4. Set an alarm mechanism. When the DCS control system detects an abnormal temperature and humidity measurement point signal, the alarm mechanism will be triggered.

[0137] S41. The alarm mechanism includes an OR module and an ALM alarm module. After the alarm mechanism is triggered, the OR module sends an alarm signal to the ALM alarm module to remind the operators to handle the abnormal situation.

[0138] The OR module performs a logical OR operation on multiple possible alarm trigger conditions. As long as one condition is met, a signal will be sent to the ALM alarm module to ensure that abnormal situations can be detected in a timely manner.

[0139] Furthermore, in this embodiment, the OR module works in conjunction with the ALM alarm module to quickly respond to various abnormal triggering conditions, promptly notify operators, reduce the risk of equipment failure due to undetected and unhandled abnormal temperature and humidity, and improve the timeliness of system fault response and operation and maintenance efficiency.

[0140] In practice, when abnormal temperature and humidity measurement point signals or other related abnormal triggering conditions occur, the OR module performs a logical OR judgment on these conditions. Once one of them is true, it sends an alarm signal to the ALM alarm module. After receiving the signal, the ALM alarm module alerts the operators through sound and light.

[0141] S42. Obtain the quality detection module TSTQ and monitor the quality of the temperature and humidity measurement point signals in real time. Issue an alarm message when the temperature and humidity measurement point signals are abnormal. Abnormal situations include signal interruption and abnormal straight line movement of signal value.

[0142] The TSTQ quality detection module evaluates signal quality using a specific algorithm. Furthermore, it comprehensively judges signal quality by considering multiple indicators such as signal stability, continuity, and deviation from historical data. Based on formula (3) in step S32, the quality detection algorithm is used in step S4 to evaluate the quality of the temperature and humidity measurement point signals, reducing erroneous judgments and thus improving signal quality. Determined by the following formula:

[0143] ;

[0144] Where Q represents signal quality, used to determine the quality status of the temperature and humidity measurement point signal. When the signal quality is good, it outputs "0" to the analog switch T. The analog switch T holds the output value of the FX function generator, indicating normal operation. This is because the function of the FX function generator is to directly output to the analog switch T when the analog value is within the set range; if the analog value deviates from the function correspondence, it outputs the previous normal value to the analog switch T.

[0145] The asterisk (*) indicates bad quality. When the signal is of bad quality, the output is "1" to the analog switcher T. The analog switcher T will perform an abnormal signal cutoff operation and select the constant module A signal output. This is because the logic of the quality detection module TSTQ is as follows: when the input is of good quality, the output is 0, and the analog switcher T selects the output of the FX function generator as the output value; when the input is of bad quality, the output is 1, and the analog switcher T selects the output of function block A as the output value.

[0146] Based on formula (4), in the DCS control system, the analog switch T receives raw data from multiple temperature and humidity measurement points and, based on signal quality... Once the final output is determined, the signal quality... The final output formula is as follows:

[0147] ;

[0148] in, This is represented as the current input signal. This represents the previous normal output signal.

[0149] Furthermore, in this embodiment, the TSTQ quality detection module monitors signal quality in real time, which can detect potential signal problems in advance. Through quantitative evaluation of signal quality, it can accurately distinguish between good and bad signals, promptly remove abnormal signals, avoid interference from bad signals to the system operation, ensure that temperature and humidity control decisions are based on high-quality signals, and improve the stability and reliability of system operation.

[0150] In practical implementation, the quality detection module TSTQ continuously collects relevant characteristic parameters of temperature and humidity measurement point signals, such as signal intensity change rate and signal value fluctuation range, compares them with the preset normal signal characteristic range, and judges the signal quality based on multiple indicators and assigns values. The analog quantity switcher processes the signal according to the values.

[0151] S43. Obtain constant module A and manually input temperature and humidity values. It can maintain normal temperature and humidity control when the temperature and humidity measurement point signals are abnormal. When the temperature and humidity measurement point signals fail, such as when the sensor is damaged or the signal transmission line is interrupted, constant module A allows the operator to manually input the current estimated temperature and humidity values. Based on the manually input values, the temperature and humidity adjustment device can continue to be controlled, avoiding the paralysis of the entire temperature and humidity control system due to sensor failure. It ensures that the temperature and humidity environment between electronic devices can still be maintained in a relatively stable state for a certain period of time, and buys time for sensor repair or replacement.

[0152] Furthermore, in this embodiment, the constant module A provides emergency measures in case of signal failure. By maintaining temperature and humidity control through manual input, it can prevent temperature and humidity runaway caused by sensor failure, reduce downtime caused by equipment failure, ensure the continuous and stable operation of the power plant, and improve the fault tolerance and reliability of the entire system.

[0153] In practice, when a fault is detected in the temperature and humidity measuring point signal, the system automatically switches to the constant module A enabled state. The operator manually inputs the temperature and humidity data according to the actual temperature and humidity conditions on site or the estimated value based on experience. After receiving the data, the system uses the data to control the operation of the temperature and humidity regulating device according to the normal control logic.

[0154] In this embodiment, it should be specifically explained that the key point of formula (3) in step S32 is to control the start and stop of the regulating device based on whether the temperature and humidity exceed the set range. Its core is to compare the actual monitored values ​​of temperature and humidity with the set threshold, with the aim of maintaining the temperature and humidity within a suitable range. The key point of formula (5) in step S42 is to determine the output of the analog switcher based on the signal quality. Its core is to ensure that the system receives a reliable signal for subsequent processing and avoid incorrect adjustment operations due to signal quality problems.

[0155] They occupy different stages and play different roles in the entire automatic temperature and humidity control process. Formula (3) is the rule for controlling the temperature and humidity regulating device after it has been determined that the input signal is a valid signal for temperature and humidity judgment; Formula (5) is the rule for filtering and processing the signal quality before the signal enters the subsequent stage of high and low limit comparison. For example, only when the analog quantity switch T outputs a signal of good quality according to Formula (5) can the signal be considered as a valid signal. Output the current input signal Only when this signal enters the start / stop judgment stage of the temperature and humidity control device will the start / stop operation of the control device be triggered according to formula (3).

[0156] Example 2

[0157] It should be noted that the explanation of the above-mentioned automatic temperature and humidity control method for the electronic equipment room in a power plant in Embodiment 1 also applies to the automatic temperature and humidity control device for the electronic equipment room in a power plant in Embodiment 2, and will not be repeated here.

[0158] Further explanation in conjunction with Example 1, such as Figure 4 As shown in the diagram, this invention provides an automatic temperature and humidity control device for an electronic equipment room in a power plant, comprising:

[0159] The temperature and humidity measurement module is used to set up multiple temperature and humidity measurement points in the electronic equipment room of the power plant, including temperature measurement points and humidity measurement points, which are distributed in different locations in the electronic equipment room, such as the four corners and the middle position, to collect temperature and humidity data and connect the temperature and humidity measurement point signals to the DCS control system cabinet.

[0160] Temperature and humidity control devices are used to regulate the temperature and humidity between electronic devices according to instructions from the DCS control system, such as dehumidification, heating or cooling.

[0161] The control unit, which is located within the DCS control system, is used to deploy specific control algorithms, receive signals from the temperature and humidity measurement point modules, so as to realize the automation of the DCS control system to monitor and adjust the status of the temperature and humidity adjustment devices between electronic devices, and to ensure that the temperature and humidity reference data are maintained within the set range.

[0162] Specifically, the control unit is used to receive and process signals and data from various modules in order to achieve precise control of the temperature and humidity regulation device between electronic devices;

[0163] First, the FX function generator receives the raw analog signal from the temperature and humidity measurement point and processes it according to the built-in specific function conversion rules to convert it into a standard format signal to meet the processing requirements of subsequent modules. At the same time, the FX function generator can dynamically adjust its output value according to the real-time changes of the analog signal and continuously transmit the processed signal to the analog switcher T.

[0164] The quality detection module TSTQ focuses on monitoring the quality of temperature and humidity measurement signals. It uses detection algorithms and preset quality assessment standards to monitor and analyze the input signals in real time. When the signal is determined to be of good quality, the quality detection module TSTQ outputs "0" to the analog quantity switch T. Conversely, if the signal is detected to be of poor quality, the quality detection module TSTQ outputs "1" to the analog quantity switch T, thus providing the analog quantity switch T with a clear signal quality indication.

[0165] The analog signal switcher T determines the final output signal source based on the signal quality indication provided by the quality detection module TSTQ. When it receives a "0" output from the quality detection module TSTQ, the analog signal switcher T uses the current signal from the FX function generator as the final output and passes it to the subsequent high / low limit block H / L for upper and lower limit comparison, ensuring that normal signals can flow smoothly in the system. When it receives a "1" output from the quality detection module TSTQ, the analog signal switcher T immediately switches the output source, selecting the output value of the constant module A as the final output. This effectively avoids system misjudgment or instability caused by abnormal signals, ensuring the stable operation and reliability of the entire control system. If the signal value is determined to be of poor quality, the handling methods include signal shielding, signal correction, or maintaining the normal signal output of the previous cycle.

[0166] The processing method is signal correction, which corrects bad quality according to the rules set by the DCS control system;

[0167] When the temperature and humidity of the input normal signal exceed the set upper and lower limits, the high and low limit block H / L triggers the corresponding command signal to automatically control the start and stop of the temperature and humidity regulating device.

[0168] An alarm device is used to set up an alarm mechanism. When the control unit detects an abnormal signal from the temperature and humidity measuring point, the alarm mechanism is triggered.

[0169] The TSTQ quality detection module monitors the quality of temperature and humidity measurement point signals in real time and issues alarm information when abnormal temperature and humidity measurement point signals occur.

[0170] The computer system is used to store and process temperature and humidity data, run relevant control algorithms and programs, coordinate the work between various modules, and perform in-depth mining and analysis of historical temperature and humidity data.

[0171] The computer system also includes an analysis unit, which performs multi-dimensional analysis of temperature and humidity data based on various data analysis algorithms, such as data trend analysis, periodic analysis, and abnormal data identification, to provide data support for the optimization of temperature and humidity control strategies.

[0172] When the computer system receives an external input command for constant module A, it recognizes it as a constant setting operation for constant module A. The analysis unit executes the constant update process, which can maintain normal temperature and humidity control when the temperature and humidity measurement point signals are abnormal.

[0173] The temperature and humidity measuring module, temperature and humidity regulating device, control unit, alarm device, quality detection module TSTQ, FX function generator, constant module A and computer system cooperate with each other to execute the automatic temperature and humidity control method for power plant electronic equipment provided in Example 1 above.

[0174] Example 3

[0175] Further explanation in conjunction with Example 1, such as Figure 5 As shown in the diagram, this application provides an electronic device that may include:

[0176] Memory, processor, and computer programs stored in memory and capable of running on the processor.

[0177] When the processor executes the program, it implements the automatic temperature and humidity control method for the power plant electronic equipment room provided in Embodiment 1 above.

[0178] Furthermore, electronic devices also include:

[0179] A communication interface used for communication between the memory and the processor.

[0180] Memory is used to store computer programs that can run on the processor.

[0181] The memory may include high-speed RAM, and may also include non-volatile memory, such as at least one disk drive.

[0182] If the memory, processor, and communication interface are implemented independently, they can be interconnected via a bus to communicate with each other. The bus can be an Industry Standard Architecture (ISA) bus, a Peripheral Component Interconnect (PCI) bus, or an Extended Industry Standard Architecture (EISA) bus, etc. Buses can be categorized as address buses, data buses, control buses, etc.

[0183] The control unit may include one or more processing units, such as an application processor (AP), an application-specific integrated circuit (ASIC), a modem processor, a central processing unit (CPU), an image signal processor (ISP), a controller, memory, a video codec, a digital signal processor (DSP), a baseband processor, and / or a neural network processing unit (NPU). Different processing units may be independent devices or integrated into one or more processors. The controller may serve as a central nervous system and command center. The controller can generate operation control signals based on instruction opcodes and timing signals to control instruction fetching and execution. The processor may also include memory for storing instructions and data. In some embodiments, the memory in the processor is a cache memory. This memory can store instructions or data that the processor has just used or that is used repeatedly. If the processor needs to reuse the instruction or data, it can directly retrieve it from the memory. This avoids repeated access, reduces processor waiting time, and thus improves system efficiency.

[0184] A display is used to display images, videos, etc. Displays may include display panels, which can be liquid crystal displays (LCDs), organic light-emitting diodes (OLEDs), active-matrix organic light-emitting diodes (AMOLEDs), flexible light-emitting diodes (FLEDs), MiniLEDs, MicroLEDs, Micro-OLEDs, quantum dot light-emitting diodes (QLEDs), etc.

[0185] Alternatively, in a specific implementation, if the memory, processor, and communication interface are integrated on a single chip, then the memory, processor, and communication interface can communicate with each other through an internal interface.

[0186] This application also provides a computer-readable storage medium storing a computer program that, when executed by a processor, implements the above-described automatic temperature and humidity control method for power plant electronic equipment rooms.

[0187] This application also provides a computer program product that can run computer instructions, which, when executed by a processor, implement the above-mentioned automatic temperature and humidity control method for power plant electronic equipment rooms.

[0188] The logic and / or steps represented in the flowchart or otherwise described herein, for example, can be considered as a sequenced list of executable instructions for implementing logical functions, and can be embodied in any computer-readable medium for use by, or in conjunction with, an instruction execution system, apparatus, or device (such as a computer-based system, a processor-included system, or other system that can fetch and execute instructions from, an instruction execution system, apparatus, or device). For the purposes of this specification, "computer-readable medium" can be any means that can contain, store, communicate, propagate, or transmit programs for use by, or in conjunction with, an instruction execution system, apparatus, or device. More specific examples (a non-exhaustive list) of computer-readable media include: an electrical connection having one or more wires (electronic device), a portable computer disk drive (magnetic device), random access memory (RAM), read-only memory (ROM), erasable and editable read-only memory (EPROM or flash memory), fiber optic devices, and portable optical disc read-only memory (CDROM). Alternatively, the computer-readable medium may be paper or other suitable media on which the program can be printed, since the program can be obtained electronically by optically scanning the paper or other medium, followed by editing, interpreting, or otherwise processing as necessary, and then stored in a computer memory.

[0189] The storage medium mentioned above can be a read-only memory, a disk, or an optical disk, etc. Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of this application.

Claims

1. A method for automatic temperature and humidity control in an electronic equipment room of a power plant, characterized in that, Includes the following steps: S1. Obtain the temperature and humidity reference data and the status of the temperature and humidity control devices among the electronic devices to be monitored, and determine the monitoring range of temperature and humidity based on the temperature and humidity reference data. S2. Set up multiple temperature and humidity measuring points between the electronic devices to be monitored, and connect the signals from the multiple temperature and humidity measuring points to the DCS control system. S3. Deploy specific control algorithms through the DCS control system to automate the status monitoring and adjustment of the temperature and humidity control devices between electronic devices, and ensure that the temperature and humidity reference data are maintained within the set range. Step S3 also includes the following steps: The analog signals from the temperature and humidity measurement points are input to the FX function generator. The FX function generator removes data outside the reasonable range and adjusts in real time based on changes in the analog signals. The processed signal is then output to the analog switcher T. The analog switcher T inputs the received signal to the high / low limit block H / L. The high / low limit block H / L compares the signal with the preset threshold range. That is, the FX function generator performs discrimination on the analog signals from the input temperature and humidity measurement points, and sets the input signal as... Its pre-set reasonable range is ,when At that time, output directly The analog quantity switch T is connected to the analog quantity switch, and is expressed by the following formula: ; in, This represents the previous normal output value; The constant acquisition module A and the quality detection module TSTQ are used to detect the quality of the analog signal in real time, obtaining a detection result of "0" or "1", and transmitting the quality detection result to the analog switcher T. If the analog switcher T receives an output value of "0" from the quality detection module TSTQ, it outputs the current signal received by the FX function generator to the high / low limit block H / L for comparison. If the signal value deviates from the threshold range, the high / low limit block H / L triggers the corresponding command signal to automatically control the start and stop of the temperature and humidity control device; if the signal value is within the threshold range, it is determined to be a normal signal, and the monitoring process continues in a loop. If the analog quantity switcher T receives the output value of the quality detection module TSTQ as "1", then it switches the output source and selects the output value of the constant module A to output to the high and low limit block H / L; If the signal value deviates from the threshold range, the processing method is signal correction, which corrects the deviating signal according to the rules set by the DCS control system. If the signal deviates from the threshold range but the deviation is small, a linear regression method is used to correct the abnormal signal based on the trend of historical normal signals, so that the abnormal signal returns to a reasonable threshold range. The processed signal is then input back into the high / low limit block H / L, and the cycle repeats. S4. Set an alarm mechanism. When the DCS control system detects an abnormal temperature and humidity measurement point signal, the alarm mechanism will be triggered.

2. The automatic temperature and humidity control method for the electronic equipment room in a power plant according to claim 1, characterized in that, In step S2, the temperature and humidity measuring points include temperature measuring points and humidity measuring points, which are distributed in different locations among the electronic devices, including the four corners and the middle position.

3. The automatic temperature and humidity control method for the electronic equipment room in a power plant according to claim 2, characterized in that, Step S4 also includes the following steps: The alarm mechanism includes an OR module and an ALM alarm module. After the alarm mechanism is triggered, the OR module sends an alarm signal to the ALM alarm module to remind the operators to handle the abnormal situation.

4. The automatic temperature and humidity control method for the electronic equipment room in a power plant according to claim 3, characterized in that, In step S3, if the signal deviates from the threshold range but the deviation is small, a linear regression method is used to correct the abnormal signal based on the trend of historical normal signals, so that the abnormal signal returns to a reasonable threshold range, and then it is passed to the high / low limit block H / L. The specific steps are as follows: Let a certain time period be the past. Each sampling period, and collects past data. Historical normal signal data for each sampling period, with a deviation ratio threshold set. Let the temperature signal value sequence for each period be... The sequence of humidity signal values ​​is And set the current abnormal temperature and humidity signal data, assuming the abnormal temperature signal is... Abnormal humidity signal is ; To synthesize abnormal temperature signals and abnormal humidity signals are A weighted summation method is used, with temperature as the weight. Humidity weighting Then the combined temperature and humidity signal value sequence for: ; in, ; The comprehensive abnormal temperature and humidity signal value is obtained according to formula (1). for: ; Based on formula (2), if the following conditions are met If the deviation of the abnormal temperature and humidity signal is small, it can be corrected. in, This is the previous normal comprehensive temperature and humidity signal value. and These are the upper and lower limits of the pre-set normal comprehensive temperature and humidity signal threshold range; Let the time series be the independent variable. , The combined temperature and humidity signal values ​​are the dependent variable. Establish a linear regression model: ; in It is the intercept. It's the slope. It is an error term; Estimate using the least squares method and The value of the linear regression model The formula is used to find the best-fitting straight line for the change of historical comprehensive temperature and humidity signal data over time, and to correct abnormal temperature and humidity signals by using the trend. Based on the established linear regression model To correct the overall abnormal temperature and humidity signal values hour; First, determine the time point corresponding to the abnormal signal. ; And let the current one be the number. If an anomaly occurs in any sampling period, then ; Will Substitute into the linear regression model The corrected comprehensive temperature and humidity signal prediction values ​​are obtained as follows: ; Next, based on temperature weighting Humidity weight Back-reaming the corrected temperature signal prediction value Humidity signal prediction value : Corrected temperature signal prediction value : ; Corrected humidity signal prediction value : ; Finally, the corrected temperature signal prediction values ​​were verified. Humidity signal prediction value Within the normal signal threshold range; like , Then the temperature signal prediction value Humidity signal prediction value The corrected normal signal is passed to the high and low limit blocks H / L; otherwise, the normal signal output of the previous cycle is maintained. in, and To pre-set the upper and lower limits of the normal signal threshold range for temperature, and The upper and lower limits of the normal signal threshold range for humidity are preset; The normal signal is output to the high / low limit block H / L for upper and lower limit comparison. The DCS system then uses a threshold comparison algorithm to determine the start and stop of the temperature and humidity control device. The control signal... It can be determined using the following formula: ; in, and These are the humidity and temperature monitored by the temperature and humidity control device, respectively. and The control signals represent the upper limits for humidity and temperature, respectively. Used to detect when humidity exceeds a set humidity limit. Or the temperature exceeds the set high temperature limit. If the signal is triggered, a command signal "1" is sent to start the dehumidification or cooling function; otherwise, no command signal is triggered and the temperature and humidity control device remains in its current operating state. The high humidity limit Set to 60%, the lower limit for humidity. Set to 40%; High temperature limit Set to 26℃, lower temperature limit. Set to 22℃; Specifically, when the humidity exceeds 60% or falls below 40%, the control signal... Send command signal "1" to the temperature and humidity control device to start or stop the dehumidification function; When the temperature exceeds 26℃ or falls below 22℃, the control signal... Send command signal "1" to the temperature and humidity control device to start or stop the cooling function.

5. The automatic temperature and humidity control method for the electronic equipment room in a power plant according to claim 4, characterized in that, Based on formula (3), the quality detection algorithm is used in step S4 to evaluate the quality of the temperature and humidity measurement point signals, which can reduce erroneous judgments and improve signal quality. Determined by the following formula: ; Where Q represents signal quality, used to determine the quality status of the temperature and humidity measurement point signal. When the signal quality is good, "0" is output to analog switch T. Analog switch T holds the output value of FX function generator, indicating normal operation. "*" indicates bad quality. When the signal is of bad quality, "1" is output to the analog switch T. The analog switch T will perform an abnormal signal cut-off operation and select the constant module A signal output. Based on formula (4), in the DCS control system, the analog switch T receives raw data from multiple temperature and humidity measurement points and, based on signal quality... The final output is determined, then the signal quality... The final output formula is as follows: ; in, This is represented as the current input signal. This represents the previous normal output signal.

6. An automatic temperature and humidity control device for an electronic equipment room in a power plant, characterized in that, include: The temperature and humidity measurement module is used to set up multiple temperature and humidity measurement points in the electronic equipment room of the power plant, including temperature measurement points and humidity measurement points, which are distributed in different locations in the electronic equipment room, such as the four corners and the middle position, to collect temperature and humidity data and connect the temperature and humidity measurement point signals to the DCS control system cabinet. Temperature and humidity control devices are used to regulate the temperature and humidity between electronic devices according to instructions from the DCS control system, such as dehumidification, heating or cooling. The control unit, which is located within the DCS control system, is used to deploy specific control algorithms, receive signals from the temperature and humidity measurement point modules, so as to realize the automation of the DCS control system to monitor and adjust the status of the temperature and humidity adjustment devices between electronic devices, and to ensure that the temperature and humidity reference data are maintained within the set range. An alarm device is used to set up an alarm mechanism. When the control unit detects an abnormal signal from the temperature and humidity measuring point, the alarm mechanism is triggered. The TSTQ quality detection module monitors the quality of temperature and humidity measurement point signals in real time and issues alarm information when abnormal temperature and humidity measurement point signals occur. The computer system is used to store and process temperature and humidity data, run relevant control algorithms and programs, coordinate the work between various modules, and perform in-depth mining and analysis of historical temperature and humidity data. The computer system also includes an analysis unit, which performs multi-dimensional analysis of temperature and humidity data based on various data analysis algorithms, such as data trend analysis, periodic analysis, and abnormal data identification, to provide data support for the optimization of temperature and humidity control strategies. When the computer system receives an external input command for constant module A, it recognizes it as a constant setting operation for constant module A. The analysis unit executes the constant update process, which can maintain normal temperature and humidity control when the temperature and humidity measurement point signals are abnormal. The temperature and humidity measuring module, temperature and humidity regulating device, control unit, alarm device, quality detection module TSTQ, FX function generator, constant module A and computer system cooperate with each other to execute the automatic temperature and humidity control method for power plant electronic equipment as described in any one of claims 1-5.

Citation Information

Patent Citations

  • Temperature and humidity alarm monitoring system for electronic equipment room of power plant

    CN220525021U