CN117452865A - Intelligent monitoring system for environmental parameters of power distribution room - Google Patents
Intelligent monitoring system for environmental parameters of power distribution room Download PDFInfo
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- 239000011261 inert gas Substances 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F7/00—Ventilation
- F24F7/007—Ventilation with forced flow
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
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Abstract
The invention discloses an intelligent monitoring system for environmental parameters of a power distribution room, and relates to the technical field of monitoring of power distribution rooms, wherein the system comprises a parameter acquisition module, a real-time monitoring module, a leakage detection module and a safety regulation and control module; the technical key points are as follows: through the cooperation of real-time monitoring module and leak detection module, whether the real-time monitoring is various environmental parameter surpass corresponding threshold value after, whether trigger the warning according to the monitoring result selection, when the gas leakage problem that exists in the reply electricity distribution room, use thermal imaging subassembly under the circumstances of confirming to detect gas leakage, according to the location value Dwz that comprehensive calculation obtained, can provide the basis for thermal imaging subassembly's regulation and control, be convenient for accurate, the efficient position that obtains the leak point, then carry out subsequent work, the problem that the leak point efficiency is lower in the electricity distribution room is found through the manual work in the tradition is solved, the flexibility of whole system design has been embodied.
Description
Technical Field
The invention relates to the technical field of monitoring of power distribution rooms, in particular to an intelligent monitoring system for environmental parameters of a power distribution room.
Background
The monitoring is very important in a power distribution room, and the power distribution room can monitor parameters such as the state, the temperature, the humidity and the like of power equipment in the power distribution room in real time, discover abnormal conditions in advance and take corresponding measures to ensure the safe operation of the power distribution room; the common power distribution room monitoring system comprises security monitoring, temperature and humidity monitoring, electric power parameter monitoring, smoke and gas detection and remote monitoring and alarm functions; the security monitoring monitors and records the power distribution room in real time by installing equipment such as a camera, an access control system and the like so as to prevent illegal entry and occurrence of security events; temperature and humidity monitoring utilizes a temperature sensor and a humidity sensor to monitor temperature and humidity data in a power distribution room, so that environmental conditions are ensured to meet requirements.
The technical scheme pointed out in the patent document of the prior authorization bulletin number CN109471380B, named as a real-time monitoring system of a power-preserving user power distribution room comprises a plurality of current measuring devices, a plurality of voltage measuring devices, a camera device, a communication device, a display device and a microprocessor, wherein the current measuring devices and the voltage measuring devices are respectively provided with an identification ID; the current measuring device and the voltage measuring device are arranged on measuring points of a power-saving user power distribution room, and the measuring points are positioned at the starting points of power-saving user power distribution branches and the connecting points of power distribution equipment; the camera device is installed in the electricity-protecting user power distribution room, the camera device is connected with the microprocessor through the communication device, and the display device is connected with the microprocessor, so that the working states of all branches and equipment of the electricity-protecting user can be mastered by means of visible light communication while video monitoring is carried out on the electricity-protecting user power distribution room, but the condition that gas leaks in the power distribution room cannot be monitored and early warned.
In combination with the above patent and the prior art, when environmental monitoring is performed in a power distribution room, the temperature and humidity parameters and the electrical parameters of each power distribution cabinet configured in the power distribution room are monitored in real time, monitoring data are transmitted to a remote prompt end, early warning is sent when the parameters exceed standards, but the power distribution room is internally provided with more power distribution cabinets, a cooling system or a pipeline is also generally configured in the power distribution cabinets so as to ensure the normal operation of the power distribution cabinets, besides the danger of fire disaster, the danger of gas leakage exists in the power distribution room, the gas leakage is generally monitored in real time by installing a gas sensor in the power distribution room, however, the monitoring is only insufficient, the leakage point is accurately found, and a ventilation fan is required to be adjusted in time, but the whole working efficiency is not improved due to manual operation in the adjustment work of the point of the leakage point and the ventilation fan.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides an intelligent monitoring system for environmental parameters of a power distribution room, which solves the problems in the background art.
In order to achieve the above purpose, the invention is realized by the following technical scheme:
an intelligent monitoring system for environmental parameters of a power distribution room, the system comprising:
the parameter acquisition module is used for detecting environmental parameters in the power distribution room, wherein the environmental parameters comprise temperature, humidity, gas concentration, noise value and output power of each power distribution cabinet in the power distribution room;
the real-time monitoring module compares the environment parameters acquired in real time with preset corresponding thresholds, and when the environment parameters exceed the corresponding thresholds, the real-time monitoring module triggers an alarm signal, and is characterized in that:
the leakage detection module is used for comparing each gas concentration with each noise value at the same time under the condition that the gas concentration exceeds a corresponding threshold value, constructing a calculation model, calculating positioning values Dwz under each power distribution cabinet, sequencing each positioning value Dwz from large to small, extracting the region of the power distribution cabinet corresponding to the first positioning value Dwz, triggering an instruction for regulating and controlling the thermal imaging assembly, and arranging the thermal imaging assembly on the inner wall of a power distribution room to enable a thermal imager in the thermal imaging assembly to move into the extracted region;
detecting whether a leakage point exists in a power distribution cabinet under the area through a thermal imager, and if the leakage point is detected, starting a regulation strategy; if no leakage point is detected, extracting the area of the power distribution cabinet corresponding to the second positioning value Dwz, enabling the thermal imager to move into the extracted area, and continuously detecting whether the leakage point exists in the power distribution cabinet under the area through the thermal imager until the leakage point is detected;
and the safety regulation and control module acquires evaluation parameters when executing a regulation and control strategy, builds a wind speed regulation calculation model, generates a wind speed regulation predicted value Ygz according to the preprocessed evaluation parameters, and completes rotation speed regulation according to the wind speed regulation predicted value Ygz by a ventilation fan installed on the power distribution room.
Further, the temperature and humidity obtaining modes are as follows: the temperature and humidity sensor is arranged in the power distribution room for detection; the gas concentration is obtained by the following steps: installing gas sensors at positions of the ceilings of the power distribution room, which correspond to each power distribution cabinet, for detection; the noise value is obtained by the following steps: a decibel meter is arranged at the position of the ceiling of the power distribution room corresponding to each power distribution cabinet for detection; output power of the power distribution cabinet: obtained by configuring an electrical parameter sensor on each power distribution cabinet.
Further, the formula according to which the positioning value Dwz under each power distribution cabinet is generated is as follows:
；
in the method, in the process of the invention,representing the ammonia concentration of the corresponding power distribution cabinet, +.>Representing the noise value of the corresponding power distribution cabinet +.>Ammonia concentration->And noise value->Is a preset proportional coefficient of>。
Further, the thermal imaging assembly comprises a thermal imager and an annular rail, the annular rail is arranged on the periphery of the inner wall of the power distribution room, the thermal imager is arranged on the annular rail in a sliding mode, an electric control sliding block is arranged at the position, where the surface of the thermal imager is in contact with the annular rail, of the thermal imager, and the electric control sliding block is used for driving the thermal imager to move on the annular rail.
Further, the process of detecting the leakage point on the power distribution cabinet by the thermal imaging instrument is as follows:
s101, calibrating and initially setting a thermal imager;
s102, aligning the thermal imager to a region where gas leakage occurs during detection;
s103, obtaining distribution of different temperature areas through thermal image display of a thermal imager, wherein a temperature abnormal area near a leakage point appears as a bright spot or a dark spot;
s104, determining the positions of the leakage points according to the result displayed by the heat map, displaying the leakage points as protruding areas different from the ambient temperature, and extracting abnormal areas from the temperature distribution displayed by the heat map through an image processing algorithm to determine the positions of the leakage points.
Further, the acquired evaluation parameters include a temperature change speed for reflecting the leak speed, a distance between the thermal imager and the ventilation fan.
Further, the process of obtaining the temperature change speed is as follows:
s201, recording the temperature change of the area where the leakage point is located along with time by using a temperature and humidity sensor corresponding to the leakage point, and recording the temperature value of each time point to obtain a data sequence of the temperature change along with time;
s202, performing differential operation by using temperature change data, calculating the temperature change speed between adjacent time points, and calculating the temperature change speed by using the following formula:
；
wherein T2 and T1 respectively represent temperature values at adjacent time points,is a time interval.
Further, the process of obtaining the distance between the thermal imager and the ventilation fan is as follows:
s301, installing an infrared receiver in a thermal imager, and installing an infrared transmitter on a ventilation fan;
s302, switching on power supplies of an infrared receiver and an infrared emitter, and under the condition that the thermal imager detects a leakage point, the infrared receiver receives an infrared signal sent by the infrared emitter to obtain distance data, wherein the distance data is the distance between the thermal imager and a ventilation fan.
Further, the formula according to which the wind speed adjustment predicted value Ygz is generated is as follows:
；
in the method, in the process of the invention,indicating wind speed regulation index>Indicating the rate of change of temperature,/">Indicating the distance between the thermal imager and the ventilating fan, < >>Temperature change rate->And the distance between the thermal imaging instrument and the ventilation fan +.>Is used for the control of the temperature of the liquid crystal display device,and->G is a constant correction factor,>representing a preset basic rotational speed and adjusting the speed of temperature change before calculating the wind speed adjustment predicted value Ygz +.>Distance between thermal imaging instrument and ventilation fan>Basic rotation speed +.>And carrying out dimensionless treatment.
An intelligent monitoring method for environmental parameters of a power distribution room comprises the following specific steps:
s1, detecting environmental parameters in a power distribution room, wherein the environmental parameters comprise temperature, humidity, gas concentration, noise value and output power of each power distribution cabinet in the power distribution room;
s2, comparing the environmental parameters acquired in real time with preset corresponding thresholds, and triggering an alarm signal when the environmental parameters exceed the corresponding thresholds;
s3, under the condition that the gas concentration exceeds a corresponding threshold value, comparing the gas concentration and the noise value at the same moment, constructing a calculation model, calculating positioning values Dwz under each power distribution cabinet, sequencing each positioning value Dwz from large to small, extracting the region of the power distribution cabinet corresponding to the first positioning value Dwz, triggering an instruction for regulating and controlling the thermal imaging assembly, and arranging the thermal imaging assembly on the inner wall of a power distribution room to enable a thermal imager in the thermal imaging assembly to move into the extracted region;
detecting whether a leakage point exists in a power distribution cabinet under the area through a thermal imager, and if the leakage point is detected, starting a regulation strategy; if no leakage point is detected, extracting the area of the power distribution cabinet corresponding to the second positioning value Dwz, enabling the thermal imager to move into the extracted area, and continuously detecting whether the leakage point exists in the power distribution cabinet under the area through the thermal imager until the leakage point is detected;
and S4, when a regulation strategy is executed, acquiring evaluation parameters, building a wind speed regulation calculation model, generating a wind speed regulation predicted value Ygz according to the preprocessed evaluation parameters, and completing rotation speed regulation by a ventilation fan installed on a power distribution room according to the wind speed regulation predicted value Ygz.
The invention provides an intelligent monitoring system for environmental parameters of a power distribution room, which has the following beneficial effects:
1. according to the invention, the real-time monitoring module and the leakage detection module are used in a matched manner, after whether various environmental parameters exceed corresponding thresholds or not is monitored in real time, whether an alarm is triggered or not is selected according to the monitoring result, when the problem of gas leakage in a power distribution room is solved, a thermal imaging assembly is applied under the condition that the gas leakage is detected, the positioning value Dwz obtained through comprehensive calculation can provide a basis for the regulation and control of the thermal imaging assembly, the position of a leakage point can be conveniently and accurately obtained, the follow-up work is carried out, the problem that the efficiency of the leakage point in the power distribution room is lower through manual searching in the prior art is solved, and the flexibility of the whole system design is embodied;
2. in the case of determining the presence of a leak in the power distribution room, a desired wind speed regulation index is generated by means of the acquired evaluation parametersAnd associating it with the base speed +.>Accumulating, calculating out a wind speed adjustment predicted value Ygz, providing a direct basis for rotating speed adjustment for a ventilation fan arranged on a power distribution room, ensuring the safety of the environment of the power distribution room in maintenance reserved time, ensuring that maintenance personnel can safely enter the power distribution room, solving the problems that the power consumption and noise are increased caused by directly starting the ventilation fan with the maximum rotating speed when the gas leakage occurs in the power distribution room in the conventional way, and balancing noise when the sufficient ventilation is ensured according to the adjustment of the rotating speed of the fan under specific conditionsInfluence of sound and energy consumption.
Drawings
FIG. 1 is a schematic diagram of a modular structure of an intelligent monitoring system for environmental parameters of a power distribution room;
FIG. 2 is a schematic diagram of the overall structure of the power distribution room in the invention;
FIG. 3 is a schematic overall flow chart of an intelligent monitoring method for environmental parameters of a power distribution room;
legend description: 11. a thermal imaging assembly; 111. a thermal imager; 112. an endless track; 12. and a ventilation fan.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1: referring to fig. 1-2, the present embodiment provides an intelligent monitoring system for environmental parameters of a power distribution room, where the system includes a parameter acquisition module, a real-time monitoring module, a leakage detection module and a safety regulation module, the whole monitoring system can monitor each power distribution cabinet with a cooling pipeline in the power distribution room in real time, the cooling pipeline is a matched structure in the power distribution cabinet and is used for controlling the temperature of equipment, inert gases including ammonia gas exist in the cooling pipeline and are all used as cooling media, and the temperature is absorbed and reduced by flowing through the cooling pipeline, so that the temperature in the power distribution cabinet is kept within an acceptable range, and damage or failure caused by overheating of the power distribution equipment is prevented;
the parameter acquisition module is used for detecting environmental parameters in the power distribution room;
the environmental parameters comprise temperature, humidity, gas concentration, noise value and output power of the power distribution cabinet in the power distribution room;
the temperature and humidity acquisition modes are as follows: the temperature and humidity sensor is arranged in the power distribution room for detection;
the gas concentration is obtained by the following steps: the gas sensor is arranged at the position of the ceiling of the power distribution room corresponding to each power distribution cabinet for detection, the gas concentration sensor is also arranged at the middle position of the power distribution room, the data read by the gas concentration sensor is used as the comparison with the corresponding threshold value, and the data read by the gas sensor arranged at the position corresponding to each power distribution cabinet is used for subsequent calculation of the positioning value Dwz;
the type of the gas to be detected is ammonia, so the gas concentration is the ammonia concentration;
the noise value is obtained by the following steps: and (3) installing decibel meters at the positions of the power distribution room ceilings corresponding to each power distribution cabinet for detection, and obtaining real-time noise values.
Output power of the power distribution cabinet: obtained by configuring an electrical parameter sensor on each power distribution cabinet, the electrical parameter sensor measures key electrical parameters such as current, voltage and output power.
The real-time monitoring module compares the environment parameters acquired in real time with preset corresponding thresholds, and when the environment parameters exceed the corresponding thresholds, the real-time monitoring module triggers an alarm signal to inform maintenance personnel in the modes of an alarm, a short message and a mail, for example: if the temperature exceeds the corresponding threshold value, triggering an alarm signal; if the real-time output power exceeds the corresponding threshold value, triggering an alarm signal;
the real-time monitoring module can also provide a visual interface for displaying the environmental parameters in real time, and a data storage unit is arranged in the real-time monitoring module to store the acquired environmental parameter data in a database constructed by the system for subsequent inquiry and analysis;
the leakage detection module is used for comparing the ammonia gas concentration detected by each gas sensor with the noise value detected by each decibel meter at the same moment under the condition that the gas concentration exceeds the corresponding threshold value, constructing a calculation model, calculating the positioning values Dwz under each power distribution cabinet, sequencing each positioning value Dwz according to the sequence from large to small, extracting the area of the power distribution cabinet corresponding to the first positioning value Dwz, triggering an instruction for regulating and controlling the thermal imaging assembly 11, enabling the thermal imager 111 in the thermal imaging assembly 11 to move into the extracted area, detecting whether leakage points exist in the power distribution cabinet under the area through the thermal imager 111, and starting a regulation strategy if the leakage points are detected; if no leakage point is detected, extracting the area of the power distribution cabinet corresponding to the second positioning value Dwz, enabling the thermal imager 111 to move into the extracted area, and continuously detecting whether the leakage point exists in the power distribution cabinet under the area through the thermal imager 111 until the leakage point is detected;
under the condition that each power distribution cabinet in a power distribution room is required to be closed when the noise value is acquired, so that the acquisition of the noise value is not influenced by sound generated by the operation of equipment in the power distribution cabinet, and certain noise is accompanied when ammonia gas leaks, so that the detection of the noise value can be utilized to help position a leakage point;
the formula according to which the positioning values Dwz under each power distribution cabinet are generated is as follows:
；
in the method, in the process of the invention,representing the ammonia concentration of the corresponding power distribution cabinet, +.>Representing the noise value of the corresponding power distribution cabinet +.>Ammonia concentration->And noise value->Is a preset proportional coefficient of>The method comprises the steps of carrying out a first treatment on the surface of the The ammonia concentration ∈>And noise valueThe ammonia leakage conditions of the leakage points are more serious as the positioning value Dwz is larger and the ammonia concentration is required to be equal to or higher than the ammonia concentration of the positioning value Dwz before the positioning value Dwz under each power distribution cabinet is generated>And noise value->Dimensionless processing is carried out to remove units, so that the subsequent weighted calculation processing is convenient;
the thermal imaging assembly 11 includes a thermal imager 111 and an endless track 112;
the annular rail 112 is arranged on the periphery of the inner wall of the power distribution room, the thermal imager 111 is arranged on the annular rail 112 in a sliding manner, an electric control sliding block is arranged at the position where the surface of the thermal imager 111 is contacted with the annular rail 112, and the electric control sliding block drives the thermal imager 111 to move on the annular rail 112, so that the thermal imager 111 can move to a required position or area;
the process of detecting a leak on a power distribution cabinet by the thermal imager 111 is as follows:
s101, preparing a thermal imager 111: ensuring that the thermal imager 111 is in a working state, and completing calibration and initial setting of the instrument according to the use instruction of the thermal imager 111;
s102, performing leak detection: when detecting, the thermal imager 111 is aligned to a region where gas leakage possibly occurs, and when ammonia gas leaks, obvious abnormal changes, namely hot spots or cold spots, occur in the temperature near the leakage point;
s103, analysis heat map display: the distribution of different temperature areas is obtained through the heat map display of the thermal imager 111, and the temperature abnormal areas near the leakage points are obvious bright spots or dark spots;
s104, positioning a leakage point: determining the positions of the leakage points according to the result displayed by the heat map, wherein the leakage points are displayed as protruding areas different from the ambient temperature, and the abnormal areas are extracted from the temperature distribution displayed by the heat map through an image processing algorithm so as to determine the positions of the leakage points; specifically, the heat map is digitally processed using an image processing algorithm, which is threshold segmentation, to extract pixel points exceeding a predetermined temperature threshold as an abnormal region by setting the temperature threshold.
Specifically, through the cooperation of real-time monitoring module and leakage detection module, whether the real-time monitoring is various environmental parameter and is exceeded and correspond the threshold value after, whether select according to the monitoring result and trigger the warning, when the gas leakage problem that exists in the reply electricity distribution room, use thermal imaging subassembly under the circumstances of confirming to detect gas leakage, according to the location value Dwz that comprehensive calculation obtained, can provide the basis for thermal imaging subassembly's regulation and control, be convenient for accurate, the efficient position of obtaining the leakage point, then carry out subsequent work, the problem that the efficiency of the leakage point is lower in the traditional electricity distribution room of looking for through the manual work has been solved, the flexibility of whole system design has been embodied.
The safety regulation and control module acquires evaluation parameters when executing a regulation and control strategy, builds a wind speed regulation calculation model, generates a wind speed regulation predicted value Ygz according to the preprocessed evaluation parameters, and completes rotation speed regulation according to the wind speed regulation predicted value Ygz by the ventilation fan 12 installed on the power distribution room;
wherein the acquired evaluation parameters include a temperature change speed for reflecting the leakage speed, a distance between the thermal imager 111 and the ventilation fan 12, which laterally reflects a distance between the leakage point and the ventilation fan 12;
the process of obtaining the temperature change speed is as follows:
s201, collecting temperature change data: recording the temperature change of the area where the leakage point is located along with time by using a temperature and humidity sensor corresponding to the leakage point, and recording the temperature value of each time point to obtain a data sequence of the temperature change along with time;
s202, calculating the temperature change speed: differential operation is performed by using temperature change data, the temperature change speed between adjacent time points is calculated, and the temperature change speed is calculated by using the following formula:
；
wherein T2 and T1 respectively represent temperature values at adjacent time points,is a time interval;
it should be noted that: according to the calculated temperature change speed, the leakage speed can be deduced from the side face, a larger speed change indicates a higher leakage speed, and a smaller speed change indicates a lower leakage speed, so that the temperature change speed is directly used as a calculation parameter;
the process of acquiring the distance between the thermal imager 111 and the ventilation fan 12 is as follows:
s301, an infrared receiver is arranged in the thermal imager 111, and an infrared transmitter is arranged on the ventilation fan 12, wherein the ventilation fan 12 and the thermal imager 111 are positioned in a power distribution room and are always positioned above a power distribution cabinet, so that the infrared ranging operation is not influenced;
s302, switching on power supplies of the infrared receiver and the infrared emitter, and enabling the infrared receiver to receive infrared signals emitted by the infrared emitter under the condition that the thermal imager 111 detects a leakage point, so as to obtain distance data, wherein the distance data is the distance between the thermal imager 111 and the ventilation fan 12.
The pretreatment of the evaluation parameters comprises the following steps: dimensionless processing is carried out on the temperature change speed and the distance between the thermal imager 111 and the ventilation fan 12 so as to remove units of evaluation parameters and facilitate subsequent calculation and analysis processing;
the formula from which the wind speed adjustment predictive value Ygz is generated is as follows:
；
in the method, in the process of the invention,indicating wind speed regulation index>Indicating the rate of change of temperature,/">Represents the distance between the thermal imager 111 and the ventilating fan 12, < >>Temperature change rate->And distance between thermal imager 111 and ventilation fan 12 +.>Is a preset proportionality coefficient of>G is a constant correction coefficient, the specific value of which can be adjusted and set by a user or is generated by fitting an analysis function, and the value range of G is 1-2 +.>Representing a preset basic rotational speed, is a default fan rotational speed value, and is set to a temperature change speed ++48 prior to calculating the wind speed adjustment predicted value Ygz>Distance between thermal imager 111 and ventilation fan 12 +.>Basic rotation speed +.>Performing dimensionless treatment;
the rate of temperature change was also usedAnd distance between thermal imager 111 and ventilation fan 12 +.>Are all in contact with windSpeed regulation index->Proportional, therefore, the temperature change speed +.>The faster the distance between the thermal imager 111 and the ventilation fan 12 +.>The larger the wind speed regulation index +.>The larger the corresponding wind speed adjustment predicted value Ygz is, so that the purification treatment of the environment in the power distribution room can be completed within the designated time, namely the time from the departure to the location of maintenance personnel;
the magnitude of the coefficient is a specific numerical value obtained by quantizing each parameter, so that the subsequent comparison is convenient, the magnitude of the coefficient depends on the number of sample data and the corresponding preset proportional coefficient preliminarily set by a person skilled in the art for each group of sample data, that is, the coefficient is preset according to the actual practice, so long as the proportional relation between the parameter and the quantized numerical value is not influenced, and the above description is also adopted for the preset proportional coefficient and the constant correction coefficient described in other formulas.
Specifically, in the event that a leak is determined to exist in the power distribution room, a desired wind speed adjustment index is generated by the acquired evaluation parametersAnd associating it with the base speed +.>Accumulating, calculating out a wind speed adjustment predicted value Ygz, providing a direct basis for rotating speed adjustment for a ventilation fan arranged on a power distribution room, ensuring the safety of the environment of the power distribution room in maintenance reserved time, ensuring that maintenance personnel can safely enter the power distribution room, and solving the problem that the traditional method directly opens the maximum when gas leakage occurs in the power distribution roomThe ventilation fan with rotating speed causes the problems of power consumption and noise increase, and the influence of noise and energy consumption can be balanced while the sufficient ventilation is ensured by adjusting the rotating speed of the fan according to specific conditions.
Example 2: based on the implementation 1, referring to fig. 2, the embodiment provides an intelligent monitoring method for environmental parameters of a power distribution room, which includes the following specific steps:
s1, detecting environmental parameters in a power distribution room, wherein the environmental parameters comprise temperature, humidity, gas concentration, noise value and output power of each power distribution cabinet in the power distribution room;
s2, comparing the environmental parameters acquired in real time with preset corresponding thresholds, and triggering an alarm signal when the environmental parameters exceed the corresponding thresholds;
s3, under the condition that the gas concentration exceeds a corresponding threshold value, comparing the gas concentration and the noise value at the same moment, constructing a calculation model, calculating positioning values Dwz under each power distribution cabinet, sequencing each positioning value Dwz from large to small, extracting the region of the power distribution cabinet corresponding to the first positioning value Dwz, triggering an instruction for regulating and controlling the thermal imaging assembly 11, and installing the thermal imaging assembly 11 on the inner wall of a power distribution room to enable the thermal imager 111 in the thermal imaging assembly 11 to move into the extracted region;
detecting whether a leakage point exists in a power distribution cabinet under the area through the thermal imager 111, and if the leakage point is detected, starting a regulation strategy; if no leakage point is detected, extracting the area of the power distribution cabinet corresponding to the second positioning value Dwz, enabling the thermal imager 111 to move into the extracted area, and continuously detecting whether the leakage point exists in the power distribution cabinet under the area through the thermal imager 111 until the leakage point is detected;
s4, when a regulation strategy is executed, acquiring evaluation parameters, building a wind speed regulation calculation model, generating a wind speed regulation predicted value Ygz according to the preprocessed evaluation parameters, and completing rotation speed regulation by the ventilation fan 12 installed on the power distribution room according to the wind speed regulation predicted value Ygz.
In the application, the related formulas are all the numerical calculation after dimensionality removal, and the formulas are one formulas for obtaining the latest real situation by software simulation through collecting a large amount of data, and the formulas are set by a person skilled in the art according to the actual situation.
The above embodiments may be implemented in whole or in part by software, hardware, firmware, or any other combination. When implemented in software, the above-described embodiments may be implemented in whole or in part in the form of a computer program product. Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the solution.
The units described as separate units may or may not be physically separate, and units shown as units may or may not be physical units, may be located in one place, or may be distributed over a plurality of network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
The foregoing is merely specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily think about changes or substitutions within the technical scope of the present application, and the changes and substitutions are intended to be covered by the scope of the present application.
Claims (9)
1. An intelligent monitoring system for environmental parameters of a power distribution room, the system comprising:
the parameter acquisition module is used for detecting environmental parameters in the power distribution room, wherein the environmental parameters comprise temperature, humidity, gas concentration, noise value and output power of each power distribution cabinet in the power distribution room;
the real-time monitoring module compares the environment parameters acquired in real time with preset corresponding thresholds, and when the environment parameters exceed the corresponding thresholds, the real-time monitoring module triggers an alarm signal, and is characterized in that:
the leakage detection module is used for comparing each gas concentration with each noise value at the same time under the condition that the gas concentration exceeds a corresponding threshold value, constructing a calculation model, calculating positioning values Dwz under each power distribution cabinet, sequencing each positioning value Dwz from large to small, extracting the region of the power distribution cabinet corresponding to the first positioning value Dwz, triggering an instruction for regulating and controlling the thermal imaging assembly (11), and arranging the thermal imaging assembly (11) on the inner wall of a power distribution room to enable the thermal imager (111) in the thermal imaging assembly (11) to move into the extracted region;
detecting whether a leakage point exists in a power distribution cabinet under the area through a thermal imager (111), and if the leakage point is detected, starting a regulation strategy; if no leakage point is detected, extracting the area of the power distribution cabinet corresponding to the second positioning value Dwz, enabling the thermal imager (111) to move into the extracted area, and continuously detecting whether the leakage point exists in the power distribution cabinet under the area through the thermal imager (111) until the leakage point is detected;
the safety regulation and control module acquires evaluation parameters when executing a regulation and control strategy, builds a wind speed regulation calculation model, generates a wind speed regulation predicted value Ygz according to the preprocessed evaluation parameters, and completes rotation speed regulation according to the wind speed regulation predicted value Ygz by a ventilation fan (12) installed on a power distribution room.
2. The intelligent monitoring system for environmental parameters of a power distribution room of claim 1, wherein: the temperature and humidity acquisition modes are as follows: the temperature and humidity sensor is arranged in the power distribution room for detection; the gas concentration is obtained by the following steps: installing gas sensors at positions of the ceilings of the power distribution room, which correspond to each power distribution cabinet, for detection; the noise value is obtained by the following steps: a decibel meter is arranged at the position of the ceiling of the power distribution room corresponding to each power distribution cabinet for detection; output power of the power distribution cabinet: obtained by configuring an electrical parameter sensor on each power distribution cabinet.
3. The intelligent monitoring system for environmental parameters of a power distribution room of claim 2, wherein: the formula according to which the positioning values Dwz under each power distribution cabinet are generated is as follows:
；
in the method, in the process of the invention,representing the ammonia concentration of the corresponding power distribution cabinet, +.>Representing the noise value of the corresponding power distribution cabinet +.>Ammonia concentration->And noise value->Is a preset proportional coefficient of>And before calculating the localization value Dwz the ammonia concentration is +.>And noise value->And (5) performing dimensionless treatment.
4. A power distribution room environmental parameter intelligent monitoring system according to claim 3, characterized in that: the thermal imaging assembly (11) comprises a thermal imager (111) and an annular rail (112), the annular rail (112) is arranged on the periphery of the inner wall of the power distribution room, the thermal imager (111) is slidably arranged on the annular rail (112), an electric control sliding block is arranged at the position where the surface of the thermal imager (111) is in contact with the annular rail (112), and the electric control sliding block is used for driving the thermal imager (111) to move on the annular rail (112).
5. The intelligent monitoring system for environmental parameters of a power distribution room of claim 4, wherein: the process of detecting the leakage point on the power distribution cabinet through the thermal imager (111) is as follows:
s101, calibrating and initially setting a thermal imager (111);
s102, aligning a thermal imager (111) to a region where gas leakage occurs during detection;
s103, obtaining distribution of different temperature areas through thermal image display of a thermal imager (111), wherein a temperature abnormal area near a leakage point appears as a bright spot or a dark spot;
s104, determining the positions of the leakage points according to the result displayed by the heat map, displaying the leakage points as protruding areas different from the ambient temperature, and extracting abnormal areas from the temperature distribution displayed by the heat map through an image processing algorithm to determine the positions of the leakage points.
6. The intelligent monitoring system for environmental parameters of a power distribution room of claim 5, wherein: the acquired evaluation parameters include a temperature change speed for reflecting the leak speed, a distance between the thermal imager (111) and the ventilation fan (12).
7. The intelligent monitoring system for environmental parameters of a power distribution room of claim 6, wherein: the process of obtaining the temperature change speed is as follows:
s201, recording the temperature change of the area where the leakage point is located along with time by using a temperature and humidity sensor corresponding to the leakage point, and recording the temperature value of each time point to obtain a data sequence of the temperature change along with time;
s202, performing differential operation by using temperature change data, calculating the temperature change speed between adjacent time points, and calculating the temperature change speed by using the following formula:
；
wherein T2 and T1 respectively represent temperature values at adjacent time points,is a time interval.
8. The intelligent monitoring system for environmental parameters of a power distribution room of claim 7, wherein: the process of acquiring the distance between the thermal imager (111) and the ventilation fan (12) is as follows:
s301, an infrared receiver is arranged in a thermal imager (111), and an infrared emitter is arranged on a ventilation fan (12);
s302, switching on power supplies of an infrared receiver and an infrared emitter, and under the condition that the thermal imager (111) detects a leakage point, the infrared receiver receives an infrared signal sent by the infrared emitter to obtain distance data, wherein the distance data is the distance between the thermal imager (111) and the ventilation fan (12).
9. The intelligent monitoring system for environmental parameters of a power distribution room of claim 8, wherein: the formula from which the wind speed adjustment predictive value Ygz is generated is as follows:
；
in the method, in the process of the invention,indicating wind speed regulation index>Indicating the rate of change of temperature,/">Representing the distance between the thermal imager (111) and the ventilation fan (12), is +.>Temperature change rate->And the distance between the thermal imaging instrument (111) and the ventilation fan (12)>Is a preset proportionality coefficient of>G is a constant correction factor,>representing a preset basic rotational speed and adjusting the speed of temperature change before calculating the wind speed adjustment predicted value Ygz +.>Distance between thermal imaging system (111) and ventilation fan (12)>Basic rotation speed +.>And carrying out dimensionless treatment.
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108762354A (en) * | 2018-07-27 | 2018-11-06 | 广州供电局有限公司 | Transformer room system |
| US20190340914A1 (en) * | 2018-05-03 | 2019-11-07 | Quantum IR Technologies, LLC | Infrared imaging systems and methods for gas leak detection |
| CN112713652A (en) * | 2020-12-24 | 2021-04-27 | 南京岁卞智能设备有限公司 | Intelligent power distribution room comprehensive monitoring management system based on cloud computing platform |
| CN113205828A (en) * | 2021-04-28 | 2021-08-03 | 武汉理工大学 | SF based on deep learning6Gas leakage detection method |
| CN114965896A (en) * | 2022-05-31 | 2022-08-30 | 广东电网有限责任公司 | Method and device for detecting concentration of indoor sulfur hexafluoride |
| CN115808273A (en) * | 2022-09-17 | 2023-03-17 | 浙江红谱科技股份有限公司 | Gas leakage detection system and method |
| JP2023045095A (en) * | 2021-09-21 | 2023-04-03 | 東京ガスエンジニアリングソリューションズ株式会社 | Gas concentration detection device |
| CN116380827A (en) * | 2023-03-23 | 2023-07-04 | 武汉科技大学 | Intelligent accurate positioning system for hazardous chemical gas leakage |
| CN116433212A (en) * | 2022-12-29 | 2023-07-14 | 广东电网有限责任公司江门供电局 | Fault identification processing method and related device for automatic inspection of power distribution room |
-
2023
- 2023-12-22 CN CN202311774157.5A patent/CN117452865B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20190340914A1 (en) * | 2018-05-03 | 2019-11-07 | Quantum IR Technologies, LLC | Infrared imaging systems and methods for gas leak detection |
| CN108762354A (en) * | 2018-07-27 | 2018-11-06 | 广州供电局有限公司 | Transformer room system |
| CN112713652A (en) * | 2020-12-24 | 2021-04-27 | 南京岁卞智能设备有限公司 | Intelligent power distribution room comprehensive monitoring management system based on cloud computing platform |
| CN113205828A (en) * | 2021-04-28 | 2021-08-03 | 武汉理工大学 | SF based on deep learning6Gas leakage detection method |
| JP2023045095A (en) * | 2021-09-21 | 2023-04-03 | 東京ガスエンジニアリングソリューションズ株式会社 | Gas concentration detection device |
| CN114965896A (en) * | 2022-05-31 | 2022-08-30 | 广东电网有限责任公司 | Method and device for detecting concentration of indoor sulfur hexafluoride |
| CN115808273A (en) * | 2022-09-17 | 2023-03-17 | 浙江红谱科技股份有限公司 | Gas leakage detection system and method |
| CN116433212A (en) * | 2022-12-29 | 2023-07-14 | 广东电网有限责任公司江门供电局 | Fault identification processing method and related device for automatic inspection of power distribution room |
| CN116380827A (en) * | 2023-03-23 | 2023-07-04 | 武汉科技大学 | Intelligent accurate positioning system for hazardous chemical gas leakage |
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