Intelligent control system and method for coating process of ship cabin

Abstract

The invention discloses an intelligent control system and method for a ship cabin coating process, and relates to the technical field of intelligent control, and the method comprises the following steps: carrying out first regulation and second regulation, carrying out third regulation on energy-saving equipment, building a first mapping relation, calculating recovered energy, compensating the first regulation, and building a second mapping relation. By monitoring the distribution condition of the harmful gas in real time and carrying out second regulation and control, the harmful gas can be effectively removed in time, a safer and healthier working environment is provided for coating workers, energy such as waste heat and residual pressure generated in the coating process can be fully utilized, the energy utilization efficiency of the coating process is further optimized, and the energy utilization rate of the coating process is improved. The process parameters are automatically adjusted to be in the optimal state all the time, the coating quality of the ship cabin is improved through precise process control and optimization, the influence of human factors on the coating process is reduced through an intelligent control system, and the reliability and stability of the coating process are improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of intelligent control, in particular to a ship cabin coating process intelligent control system and method. BACKGROUND

[0002] In recent years, intelligent coating robots can precisely control the spraying trajectory and speed through intelligent path planning and autonomous navigation, realize intelligent unmanned painting, not only improve the coating efficiency, but also ensure the uniformity and quality stability of the coating, reduce the errors and risks caused by manual operation, and constantly optimize the coating process parameters by means of big data analysis technology, combined with the conditions such as on-site coating temperature, humidity, and various intelligent models such as process tracking and quality feedback, to realize intelligent optimization and control of the coating process.

[0003] At present, in the Chinese invention patent with the publication number CN118973720A, a coating device and a coating method are disclosed, the method communicates between the storage part and the liquid droplet ejection part through the first flow path, and the flow path is used to make the liquid stored in the storage part flow into the liquid droplet ejection part, communicates between the storage part and the liquid droplet ejection part through the second flow path, and the flow path is used to make the liquid flowing into the liquid droplet ejection part backflow to the storage part, obtains the information related to the action of the liquid droplet ejection part from the program of the action of the control robot part through the acquisition part, controls the circulating pressure of the liquid circulating between the storage part and the liquid droplet ejection part through the control part, and controls the circulating pressure based on the information related to the action, but the related technology does not compensate the preheating process according to the recovered energy, which is not conducive to the green energy saving of the process, and does not regulate the purification equipment according to the volatilization of harmful gases at different positions and different time points, which is not conducive to the health of workers. SUMMARY

[0004] The technical problem solved by the present application is that the related technology does not compensate the preheating process according to the recovered energy, which is not conducive to the green energy saving of the process, and does not regulate the purification equipment according to the volatilization of harmful gases at different positions and different time points, which is not conducive to the health of workers.

[0005] To solve the above technical problems, the present application provides the following technical solutions: in a first aspect, a ship cabin coating process intelligent control method, comprising the following steps:

[0006] Step S100, according to the standard process parameters, the first regulation of the cabin, and real-time monitoring of the harmful gas distribution and the backflow material parameters of the cabin;

[0007] Step S200, according to the harmful gas distribution, the second regulation of the purification equipment, and according to the backflow material parameters, the third regulation of the energy saving equipment;

[0008] Step S300, establishing a first mapping relationship according to the second regulation result, calculating recovered energy according to the third regulation result, compensating the process according to the recovered energy, and establishing a second mapping relationship.

[0009] As a preferred scheme of the ship cabin coating process intelligent control method, the standard process parameters include preheating air temperature, preheating time length, spraying pressure, spraying distance, spraying air humidity, spraying time length, spraying liquid composition and its proportion, spraying air temperature, and spraying liquid solid concentration.

[0010] The standard process parameters are obtained from a process database.

[0011] As a preferred scheme of the ship cabin coating process intelligent control method, the first regulation includes cooling and heating, and the method for regulating the cabin according to the standard process parameters includes:

[0012] The current temperature of the cabin is obtained, and the current temperature is compared with the preheating air temperature.

[0013] When the current temperature is equal to the preheating air temperature, no first regulation is performed.

[0014] When the current temperature is greater than the preheating air temperature, the first regulation is set to cooling.

[0015] When the current temperature is less than the preheating air temperature, the first regulation is set to heating.

[0016] The cooling and heating are realized by regulating the heat exchange between the cooling liquid pipeline and the cabin air.

[0017] As a preferred scheme of the ship cabin coating process intelligent control method, when the first regulation is cooling, the first temperature is set to the cooling liquid temperature, the first temperature is less than the preheating air temperature, the first flow rate and the first flow rate are set to the cooling liquid inlet flow rate and the cooling liquid circulation flow rate, the first flow rate and the first flow rate are represented as the first flow rate and the first flow rate at each time of the heat exchange process, the cooling liquid temperature is maintained at the first temperature at each time point of the heat exchange, and the end time node of the cooling is represented as the air temperature after the first regulation being equal to the preheating air temperature.

[0018] When the first regulation is temperature rising, the second temperature is set as the coolant temperature, wherein the second temperature is greater than the preheated air temperature, the second flow rate and the second flow speed are set as the coolant inlet flow rate and the coolant circulation flow speed, wherein the second flow rate and the second flow speed are represented as the second flow rate and the second flow speed at each time of the heat exchange process, and are obtained by simulation software, so that the coolant temperature is maintained at the second temperature at each time point of the heat exchange, and the end time node of the temperature rising is represented as the air temperature after the first regulation being equal to the preheated air temperature;

[0019] In the process of the first regulation, the harmful gas distribution and the backflow material parameter of the cabin are monitored in real time, the harmful gas distribution is represented as the harmful gas concentration at each coordinate point in the cabin, and the backflow material parameter is represented as the outlet temperature, the outlet flow rate and the outlet flow speed of the purification liquid for purifying the harmful gas.

[0020] As a preferred scheme of the ship cabin coating process intelligent control method, the purification device parameters include the purification liquid inlet flow speed, the purification liquid inlet flow rate and the purification liquid inlet temperature, the purification liquid inlet temperature is a fixed value and is obtained through historical experience, and the method for the second regulation of the purification device according to the harmful gas distribution includes:

[0021] Before the harmful gas distribution is monitored, a coordinate system is established for the cabin, any corner point of the cabin ground is selected as the origin, any adjacent side of the corner point is selected as the x-axis, the y-axis and the z-axis, and the coordinate system is obtained, wherein the cabin space is represented as a cuboid or an approximate cuboid, when the cabin space is an approximate cuboid, the cabin is filled as a cuboid through modeling software, and the coordinate system is established according to the filled cuboid;

[0022] The harmful gas distribution at any time point in the spraying time period is obtained, which is recorded as the first distribution, any coordinate point in the first distribution is obtained, which is recorded as the first coordinate point, the concentration value at the first coordinate point is obtained, the first value is set as the concentration gradient, the first sum value and the first difference value of the concentration value at the first coordinate point and the concentration gradient are calculated, the first difference value is taken as the lower limit and the first sum value is taken as the upper limit, the concentration interval is constructed, in the first distribution, the coordinate points belonging to the concentration interval are first marked, each first marked coordinate point is set as the first point cloud, and the geometric center point of the first point cloud is obtained;

[0023] According to the time sequence, the geometric center points of the first point cloud corresponding to the harmful gas distribution after the first distribution are obtained, each geometric center point is drawn as a migration curve, the slope of each point of the migration curve is calculated, and the second time period is set as the adjustment time period.

[0024] The current purification liquid inlet flow rate and current purification liquid inlet flow at the starting time point of the adjustment time period are obtained, the slope at the starting time point of the adjustment time period is obtained, denoted as a first slope, the slope at the starting time point of the time-sequentially adjacent adjustment time period is obtained, denoted as a second slope, a first ratio of the second slope to the first slope is calculated, a first product and a second product of the first ratio and the current purification liquid inlet flow rate and current purification liquid inlet flow are respectively calculated, and the first product and the second product are updated as the new purification liquid inlet flow rate and new purification liquid inlet flow at the starting time point of the adjustment time period.

[0025] The current purification liquid inlet flow rate and current purification liquid inlet flow at the starting time point of each adjustment time period are traversed, and the above updating process is cycled.

[0026] As a preferred scheme of the ship cabin coating process intelligent control method, the method for performing third regulation on the energy-saving device according to the backflow substance parameter comprises:

[0027] The backflow substance parameter is represented as a purification liquid outlet temperature, a purification liquid outlet flow, and a purification liquid outlet flow rate for purifying harmful gas;

[0028] The purification liquid outlet temperature, the purification liquid outlet flow, and the purification liquid outlet flow rate are obtained, and a transmission speed and a transmission flow of the current energy-saving device are obtained, wherein the transmission speed and the transmission flow are represented as a transmission speed and a transmission flow of liquid transmitted to the first regulation pipeline through the energy-saving device;

[0029] The starting time point, the current time point, and the process duration are obtained, a second sum of the starting time point and the process duration is calculated, and the current time point is compared with the second sum;

[0030] When the current time point is earlier than the second sum, the first regulation of the next cabin is obtained, when the first regulation of the next cabin is cooling or heating, the purification liquid backflow temperature is compared with the first temperature or the second temperature, when the purification liquid temperature is equal to the first temperature or the second temperature, the purification liquid is transmitted to the first regulation pipeline of the next cabin at the purification liquid outlet flow and the purification liquid outlet flow rate, when the purification liquid is not equal to the first temperature or the second temperature, the purification liquid is regulated to the first temperature or the second temperature, and the regulated purification liquid is transmitted to the first regulation pipeline of the next cabin at the purification liquid outlet flow and the purification liquid outlet flow rate;

[0031] When the current time point is later than the second sum, the first regulation of the current cabin is obtained, when the first regulation of the current cabin is cooling or heating, the purified liquid return temperature is compared with the first temperature or the second temperature, when the purified liquid temperature is equal to the first temperature or the second temperature, the purified liquid is transmitted to the pipeline of the first regulation of the current cabin at the purified liquid outlet flow rate and the purified liquid outlet flow rate, when the purified liquid is not equal to the first temperature or the second temperature, the purified liquid is regulated to the first temperature or the second temperature, and the regulated purified liquid is transmitted to the pipeline of the first regulation of the current cabin at the purified liquid outlet flow rate and the purified liquid outlet flow rate.

[0032] As a preferred scheme of the ship cabin coating process intelligent control method, the first mapping relationship is established according to the second regulation result, and the first mapping relationship is represented as the mapping relationship of the cabin number and the current purified liquid inlet flow rate and the current purified liquid inlet flow rate of the starting time node of each regulation time period in the spraying process. By inputting the cabin number, the starting time node of the corresponding regulation time period and the corresponding current purified liquid inlet flow rate and current purified liquid inlet flow rate are obtained.

[0033] As a preferred scheme of the ship cabin coating process intelligent control method, the first mapping relationship is established according to the second regulation result, and the first mapping relationship is represented as the mapping relationship of the cabin number and the current purified liquid inlet flow rate and the current purified liquid inlet flow rate of the starting time node of each regulation time period in the spraying process. By inputting the cabin number, the starting time node of the corresponding regulation time period and the corresponding current purified liquid inlet flow rate and current purified liquid inlet flow rate are obtained.

[0034] When the purified liquid does not need to be regulated, the first heat of the purified liquid transferred to the cabin is calculated by the heat formula, and the first heat is set as the recovered energy;

[0035] When the purified liquid needs to be regulated, the first electric energy of the heating or cooling of the purified liquid is calculated by the electric energy calculation formula, the second difference between the first heat and the first electric energy is calculated, and the second difference is set as the recovered energy.

[0036] As a preferred scheme of the ship cabin coating process intelligent control method, the first regulation of the process is compensated according to the recovered energy, and the method comprises:

[0037] The second heat required from the current air temperature to the preheated air temperature under the standard process parameters is calculated, the third difference between the second heat and the first heat is calculated, the third difference is taken as the dependent variable of the heat formula, and the combination of each independent variable is obtained. According to any combination of independent variables, the cooling liquid inlet temperature, the cooling liquid inlet flow rate and the cooling liquid circulation flow rate are updated, and the second mapping relationship of the cabin number and the updated cooling liquid inlet temperature, the cooling liquid inlet flow rate and the cooling liquid circulation flow rate is established.

[0038] In the second aspect, the ship cabin coating process intelligent control system comprises a preheating module, a recovery module and a construction module.

[0039] The preheating module carries out first regulation on the cabin according to standard process parameters, and monitors the harmful gas distribution and the backflow material parameters of the cabin in real time.

[0040] The recovery module carries out second regulation on the purification equipment according to the harmful gas distribution, and carries out third regulation on the energy-saving equipment according to the backflow material parameters.

[0041] The construction module establishes a first mapping relationship according to the second regulation result, calculates the recovered energy according to the third regulation result, carries out first regulation on the process for compensation according to the recovered energy, and establishes a second mapping relationship.

[0042] The beneficial effects of the present application are as follows: by monitoring the harmful gas distribution in real time, and carrying out second regulation on the purification equipment according to the distribution, the harmful gases can be effectively removed in time, precise harmful gas control measures help the ship cabin coating operation to meet the increasingly stringent environmental protection regulations, reduce the legal risks and economic penalties faced by enterprises due to environmental pollution, and good air quality provides a safer and healthier working environment for coating operation personnel, reduces the risk of occupational diseases caused by harmful gas exposure, carries out third regulation on the energy-saving equipment according to the backflow material parameters, can make full use of the waste heat, excess pressure and other energy generated during the coating process, further optimizes the energy utilization efficiency of the coating process, and through the establishment of the first mapping relationship and the second mapping relationship, the dynamic adjustment of the coating process parameters is realized, the intelligent control mode can automatically adjust the process parameters according to the real-time monitoring data, so that the process parameters are always in the best state, precise process control and optimization help to improve the quality of ship cabin coating, and the application of the intelligent control system reduces manual intervention and reduces the influence of human factors on the coating process, improves the reliability and stability of the coating process. BRIEF DESCRIPTION OF DRAWINGS

[0043] Figure 1 The basic flowchart of the ship cabin coating process intelligent control method provided by an embodiment of the present application is shown. DETAILED DESCRIPTION

[0044] In order to make the above-mentioned objects, features and advantages of the present application more obvious and easy to understand, the specific embodiments of the present application will be described in detail below with reference to the drawings of the specification. Obviously, the described embodiments are part of the embodiments of the present application, rather than all embodiments.

[0045] Embodiment, refer to Figure 1 For an embodiment of the present application, a ship cabin coating process intelligent control method is provided, which comprises the following steps:

[0046] Step S100, first regulation on the cabin according to standard process parameters, and real-time monitoring of the harmful gas distribution and the backflow material parameters of the cabin;

[0047] Step S200, according to the harmful gas distribution, the purification equipment is secondly regulated, and the energy-saving equipment is thirdly regulated according to the backflow material parameters;

[0048] Step S300, a first mapping relationship is established according to the second regulation result, the recovered energy is calculated according to the third regulation result, the process is first regulated for compensation according to the recovered energy, and a second mapping relationship is established.

[0049] The harmful gas distribution is monitored in real time, the purification equipment is secondly regulated according to the distribution, the harmful gas can be effectively removed in time, the precise harmful gas control measure is helpful for the ship cabin coating operation to meet the increasingly stringent environmental protection regulation requirements, reduces the legal risk and economic penalty of enterprises due to environmental pollution, the good air quality provides a safer and healthier working environment for the coating operation personnel, reduces the occupational disease risk caused by harmful gas exposure, the energy-saving equipment is thirdly regulated according to the backflow material parameters, the waste heat, waste pressure and other energy generated in the coating process can be fully utilized, the energy utilization efficiency of the coating process is further optimized, the dynamic adjustment of the coating process parameters is realized through the establishment of the first mapping relationship and the second mapping relationship, the intelligent control mode can automatically adjust the process parameters according to the real-time monitoring data, so that the process parameters are always in the best state, the precise process control and optimization are helpful for improving the quality of the ship cabin coating, the application of the intelligent control system reduces the manual intervention, reduces the influence of human factors on the coating process, and improves the reliability and stability of the coating process.

[0050] The standard process parameters are obtained, and the standard process parameters include preheated air temperature, preheating time, spraying pressure, spraying distance, spraying air humidity, spraying time, spraying liquid composition and proportion, spraying air temperature and spraying liquid solid concentration.

[0051] The standard process parameters are obtained through a process database.

[0052] The first regulation includes cooling and heating, and the method for regulating the cabin according to the standard process parameters includes:

[0053] The current temperature of the cabin is obtained, and the current temperature is compared with the preheated air temperature.

[0054] When the current temperature is equal to the preheated air temperature, the first regulation is not performed.

[0055] When the current temperature is greater than the preheated air temperature, the first regulation is set to cooling.

[0056] When the current temperature is less than the preheated air temperature, the first regulation is set to heating.

[0057] The temperature decrease and increase are realized by regulating the heat exchange between the cooling liquid pipeline and the cabin air.

[0058] In specific implementation, temperature is one of the key factors affecting the coating quality. The drying speed, curing reaction, and adhesion, hardness, and other properties of the coating are closely related to temperature. By precisely controlling the temperature in the cabin, it is ensured that it is always within the range required by the process, effectively improving the quality of the coating. For example, when the temperature is too high, the coating dries too quickly, which may cause the coating surface to crack or have pinholes; when the temperature is too low, the coating dries slowly and does not cure completely, affecting the hardness and adhesion of the coating. Through the intelligent control system, according to the comparison result of the current temperature in the cabin and the preheated air temperature, automatic temperature decrease and increase operations are performed, which can avoid coating quality problems caused by inappropriate temperature. The uniformity and consistency of temperature are crucial to the uniformity of the coating. The temperature decrease and increase processes realized by heat exchange can make the temperature distribution in the cabin more uniform, thereby ensuring the drying and curing speed of the coating at different positions to be consistent and improving the uniformity and consistency of the coating. This helps to reduce problems such as uneven coating thickness and color difference, and improves the overall appearance quality of the ship cabin coating. During the coating process, if the temperature does not meet the process requirements, the coating operation needs to be continued after the temperature is adjusted to the appropriate range. Through the intelligent control system, the cabin temperature can be quickly and accurately adjusted to the preheated air temperature, reducing the waiting time caused by inappropriate temperature and improving production efficiency. For example, during the temperature increase process, the system automatically adjusts the power of the heating equipment according to the difference between the current temperature and the preheated air temperature, to speed up the temperature increase; during the temperature decrease process, the flow rate and flow velocity of the cooling liquid are adjusted to quickly reduce the cabin temperature, ensuring that the coating process can proceed smoothly.

[0059] When the first control is temperature decrease, the first temperature is set as the cooling liquid temperature, wherein the first temperature is less than the preheated air temperature, and the first flow rate and the first flow velocity are set as the cooling liquid inlet flow rate and the cooling liquid circulation flow velocity, respectively, wherein the first flow rate and the first flow velocity represent the first flow rate and the first flow velocity at each time during the heat exchange process, which are obtained through simulation software, so that the cooling liquid temperature is maintained at the first temperature at each time point of the heat exchange, and the end time node of the temperature decrease is represented as the air temperature after the first control being equal to the preheated air temperature;

[0060] When the first regulation is heating, the second temperature is set as the coolant temperature, wherein the second temperature is greater than the preheated air temperature, the second flow rate and the second flow rate are set as the coolant inlet flow rate and the coolant circulation flow rate, respectively, wherein the second flow rate and the second flow rate are expressed as the second flow rate and the second flow rate at each time of the heat exchange process, and are obtained by simulation software, so that the coolant temperature is maintained at the second temperature at each time point of the heat exchange, and the end time node of the heating is expressed as the air temperature after the first regulation is equal to the preheated air temperature.

[0061] During the first regulation, the harmful gas distribution in the cabin and the backflow material parameters are monitored in real time, the harmful gas distribution is expressed as the harmful gas concentration at each coordinate point in the cabin, and the backflow material parameters are expressed as the outlet temperature, outlet flow rate and outlet flow rate of the purification liquid for purifying harmful gas.

[0062] In specific implementation, by setting the first temperature (when cooling) or the second temperature (when heating) as the coolant temperature and ensuring that the temperature of the coolant at each time point during the heat exchange process is maintained at the set value, accurate control of the cabin temperature can be achieved. This accurate control ensures that the temperature in the cabin is always within the range required by the process, avoiding the influence of temperature fluctuations on the coating quality. The flow rate and flow rate data obtained by simulation software ensure that the flow rate and flow rate of the coolant remain stable during the heat exchange process. This stability helps to reduce the instantaneous change of temperature and ensures uniform distribution of temperature in the cabin, further improving the stability and consistency of the coating process. Accurate temperature control can ensure that the paint dries and cures under optimal temperature conditions, thereby optimizing the performance of the coating, such as adhesion, hardness, gloss, etc. For example, at the appropriate temperature, the drying speed of the paint is moderate, which can form a uniform and smooth coating, reducing coating defects such as orange peel, pinholes, etc. During the temperature regulation process, the harmful gas distribution in the cabin is monitored in real time, including the harmful gas concentration at each coordinate point. This real-time monitoring can timely detect abnormal distribution of harmful gas and take appropriate measures to handle it, reducing the impact of harmful gas on the environment and operating personnel.

[0063] The purification equipment parameters include the purification liquid inlet flow rate, the purification liquid inlet flow rate and the purification liquid inlet temperature, the purification liquid inlet temperature is a fixed value and is obtained by historical experience, and the method for second regulation of the purification equipment according to the harmful gas distribution includes:

[0064] Before monitoring the harmful gas distribution, a coordinate system is established for the cabin, any corner point of the cabin ground is selected as the origin, and any adjacent side of the corner point is selected as the x-axis, y-axis and z-axis to obtain the coordinate system, wherein the cabin space is represented as a cuboid or an approximate cuboid, when the cabin space is an approximate cuboid, the cabin is filled as a cuboid through a modeling software, and the coordinate system is established according to the filled cuboid;

[0065] The harmful gas distribution at any time point in the spraying time period is obtained, denoted as a first distribution, any coordinate point in the first distribution is obtained, denoted as a first coordinate point, the concentration value at the first coordinate point is obtained, the first value is set as the concentration gradient, the first sum value and the first difference value of the concentration value at the first coordinate point and the concentration gradient are calculated, the first difference value is set as the lower limit and the first sum value is set as the upper limit to construct a concentration interval, in the first distribution, the coordinate points belonging to the concentration interval are first marked, the coordinate points of each first mark are set as a first point cloud, and the geometric center point of the first point cloud is obtained;

[0066] According to the time sequence, the geometric center point of the first point cloud corresponding to the harmful gas distribution after the first distribution is obtained, each geometric center point is plotted as a migration curve, the slope of each point of the migration curve is calculated, and the second time period is set as an adjustment time period;

[0067] The current purification liquid inlet flow rate and the current purification liquid inlet flow rate at the starting time point of the adjustment time period are obtained, the slope at the starting time point of the adjustment time period is obtained, denoted as a first slope, the slope at the starting time point of the adjacent adjustment time period in the time sequence is obtained, denoted as a second slope, the first ratio of the second slope and the first slope is calculated, the first product and the second product of the first ratio and the current purification liquid inlet flow rate and the current purification liquid inlet flow rate are calculated respectively, and the first product and the second product are updated as the new purification liquid inlet flow rate and the new purification liquid inlet flow rate at the starting time point of the adjustment time period;

[0068] The current purification liquid inlet flow rate and the current purification liquid inlet flow rate at the starting time point of each adjustment time period are traversed, and the above updating process is cycled.

[0069] In a specific implementation, by establishing a coordinate system in the cabin and obtaining the harmful gas distribution at any time point during the spraying period, the concentration distribution of the harmful gas can be accurately located. This method accurately identifies the areas with high concentration of harmful gas, providing a basis for subsequent purification operations. According to the concentration distribution and migration curve of the harmful gas, the inlet flow rate and flow of the purification liquid are dynamically adjusted. This dynamic adjustment ensures that the purification equipment operates at optimal parameters at different time periods, improving the purification efficiency of harmful gas. For example, when the concentration of harmful gas is high, the flow and flow rate of the purification liquid are increased to enhance the purification effect; when the concentration is low, the flow and flow rate are appropriately reduced to avoid resource waste. By dynamically adjusting the inlet flow rate and flow of the purification liquid, the amount of purification liquid used is matched with the concentration distribution of harmful gas. This method avoids resource waste caused by excessive purification liquid flow, while ensuring purification effect and reducing purification cost. Dynamic adjustment of the operating parameters of the purification equipment can better coordinate with other links of the coating process, forming a more efficient and smooth production process. Through real-time monitoring and intelligent control, each link is ensured to operate under optimal conditions, reducing process adjustment and rework caused by harmful gas problems, and improving the efficiency and stability of the entire coating process.

[0070] The method for the third regulation of the energy-saving equipment according to the backflow substance parameters comprises:

[0071] The backflow substance parameters are represented as the outlet temperature, outlet flow, and outlet flow rate of the purification liquid used for purifying the harmful gas;

[0072] The outlet temperature, outlet flow, and outlet flow rate of the purification liquid are obtained, and the transfer speed and transfer flow of the current energy-saving equipment are obtained, which are represented as the transfer speed and transfer flow of the liquid transferred to the pipeline of the first regulation through the energy-saving equipment;

[0073] The starting time point, current time point, and process duration are obtained, the second sum of the starting time point and process duration is calculated, and the current time point is compared with the second sum;

[0074] When the current time point is earlier than the second sum, the first regulation of the next cabin is obtained, when the first regulation of the next cabin is cooling or heating, the purification liquid backflow temperature is compared with the first temperature or the second temperature, when the purification liquid temperature is equal to the first temperature or the second temperature, the purification liquid is transferred to the pipeline of the first regulation of the next cabin at the purification liquid outlet flow and purification liquid outlet flow rate, when the purification liquid is not equal to the first temperature or the second temperature, the purification liquid is regulated to the first temperature or the second temperature, and the regulated purification liquid is transferred to the pipeline of the first regulation of the next cabin at the purification liquid outlet flow and purification liquid outlet flow rate;

[0075] When the current time point is later than the second sum value, the first regulation of the current cabin is obtained, when the first regulation of the current cabin is cooling or heating, the purified liquid return temperature is compared with the first temperature or the second temperature, when the purified liquid temperature is equal to the first temperature or the second temperature, the purified liquid is transmitted to the pipeline of the first regulation of the current cabin at the purified liquid outlet flow rate and the purified liquid outlet flow rate, when the purified liquid is not equal to the first temperature or the second temperature, the purified liquid is regulated to the first temperature or the second temperature, and the regulated purified liquid is transmitted to the pipeline of the first regulation of the current cabin at the purified liquid outlet flow rate and the purified liquid outlet flow rate.

[0076] The first mapping relationship is established according to the second regulation result, and the first mapping relationship is represented as a mapping relationship between the cabin number and the current purified liquid inlet flow rate and the current purified liquid inlet flow rate at the starting time node of each regulation time period in the spraying process, and by inputting the cabin number, the corresponding regulation time period starting time node and the corresponding current purified liquid inlet flow rate and current purified liquid inlet flow rate are obtained.

[0077] In specific implementation, by matching the temperature, flow and flow rate of the purified liquid with the temperature regulation demand of the cabin, the thermal energy or cold energy of the purified liquid can be maximally utilized. For example, when the temperature of the purified liquid matches the required cooling or heating temperature of the cabin, the purified liquid is directly transmitted to the regulation pipeline of the cabin, avoiding additional heating or cooling process, improving the energy utilization efficiency, and by reasonably distributing the flow direction of the purified liquid, the temperature regulation demand of each cabin is ensured to be met, reducing process adjustment and rework caused by temperature mismatch, further improving the efficiency and stability of the entire coating process, and a large amount of accumulated data is used for further intelligent decision-making. Through data analysis and mining technology, a correlation model between the purified liquid temperature and the energy-saving equipment operation parameters is established to provide more scientific and reasonable decision support for enterprises. For example, according to the data analysis result, the operation strategy of the energy-saving equipment is optimized to further improve the energy-saving effect and reduce energy consumption.

[0078] The recovered energy is calculated according to the third regulation result, and the calculation method of the recovered energy includes:

[0079] When the purified liquid does not need to be regulated, the first heat of the purified liquid transferred to the cabin is calculated by the heat formula, and the first heat is set as the recovered energy;

[0080] When the purified liquid needs to be regulated, the first electric energy of the purified liquid for heating or cooling is calculated by the electric energy calculation formula, a second difference between the first heat and the first electric energy is calculated, and the second difference is set as the recovered energy.

[0081] The method for compensating the first regulation of the process according to the recovered energy includes:

[0082] The second heat required by the current air temperature to the preheated air temperature under the standard process parameters is calculated, the third difference between the second heat and the first heat is calculated, the third difference is taken as the dependent variable of the heat formula, and the combination of each independent variable is obtained, the cooling liquid inlet temperature, the cooling liquid inlet flow rate, and the cooling liquid circulation flow rate are updated according to any combination of independent variables, and a second mapping relationship between the cabin number and the updated cooling liquid inlet temperature, the cooling liquid inlet flow rate, and the cooling liquid circulation flow rate is established.

[0083] In specific implementation, the temperature in the cabin is accurately controlled by calculating the heat required under the standard process parameters and comparing it with the actual recovered heat. This accurate control ensures that the temperature in the cabin is always within the range required by the process, thereby improving the coating quality. For example, by accurately controlling the temperature, it is ensured that the paint dries and cures under optimal conditions, reducing defects such as orange peel, pinholes, etc. caused by temperature fluctuations. By establishing a second mapping relationship between the cabin number and the updated cooling liquid parameters, the temperature regulation requirements of each cabin are accurately matched, reducing process adjustments and rework caused by temperature mismatch, further improving the efficiency and stability of the entire coating process. By accurately controlling the parameters of the cooling liquid, the equipment is prevented from running excessively, reducing equipment wear and failure rate. For example, by reasonably regulating the temperature of the cooling liquid, the equipment is prevented from being in high-load operation for a long time, prolonging the service life of the equipment. By accurately controlling the parameters of the cooling liquid, it is ensured that the temperature in the cabin is always within the range required by the process, avoiding safety risks caused by excessively high or low temperature. For example, excessively high temperature may cause the paint to volatilize too quickly, forming an environment of flammable and explosive gas, increasing the risk of fire and explosion; excessively low temperature may affect the performance and construction effect of the paint, leading to a decrease in coating quality and affecting the protective performance of the ship.

[0084] The present application can timely and effectively remove the harmful gases by monitoring the distribution of the harmful gases in real time and performing the second regulation and control on the purification equipment according to the distribution of the harmful gases, the precise harmful gas control measure helps the ship cabin coating operation to meet the increasingly stringent environmental protection regulations, reduces the legal risks and economic penalties of enterprises due to environmental pollution, the good air quality provides a safer and healthier working environment for the coating operation personnel, reduces the occupational disease risk caused by the exposure to the harmful gases, the third regulation and control on the energy-saving equipment according to the backflow material parameters can make full use of the energy such as waste heat and waste pressure generated in the coating process, further optimizes the energy utilization efficiency of the coating process, the first mapping relationship and the second mapping relationship are established, the dynamic adjustment of the coating process parameters is realized, the intelligent regulation and control mode can automatically adjust the process parameters according to the real-time monitoring data, so that the process parameters are always in the best state, the precise process control and optimization help to improve the quality of the ship cabin coating, the application of the intelligent control system reduces the manual intervention, reduces the influence of human factors on the coating process, and improves the reliability and stability of the coating process.

[0085] Those skilled in the art will appreciate that embodiments of the application can be supplied as a method, a system, or a computer program product. Thus, the application can take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the application can take the form of a computer program product on one or more computer-usable storage media (including volatile and non-volatile storage media, as well as removable and non-removable storage media) embodying computer-readable program code thereon. Any suitable computer-readable medium can be utilized including, but not limited to, static or dynamic storage devices, hard disk drives, optical storage devices, and the like, as well as an artificially generated signal per se such as a carrier wave, light wave or electromagnetic wave, etc. The computer-usable or computer-readable program code can be any set of instructions implemented in any of number of programming languages, such as, for example, Java, C, C++, C#, Fortran, Pascal, Visual BASIC, Matlab, or the like. The set of instructions can be compileable into an executable program or can be an interpreted language. The program code can be executed using any of a variety of operating systems or computing models and computer platforms, including handheld devices, embedded controllers, microcontrollers, RISC based processors or general purpose computers having a variety of architectures. Figure 1 The functions of a given block of blocks, combinations of blocks, or Figure 1 blocks, or combinations of blocks.

[0086] It should be noted that the above examples are only used to illustrate the technical solutions of the present application but not limit the present application. Although the present application is described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present application can be modified or equivalently replaced without departing from the spirit and scope of the present application, and all the modifications and equivalents should be included in the scope of the claims of the present application.

Claims

1. An intelligent control method for the ship cabin painting process, characterized in that, Includes the following steps: Step S100: The first adjustment of the compartment is performed according to the standard process parameters, and the distribution of harmful gases and parameters of refluxed substances in the compartment are monitored in real time. Step S200: The purification equipment is adjusted a second time according to the distribution of harmful gases, and the energy-saving equipment is adjusted a third time according to the parameters of the reflux material. Step S300: Establish a first mapping relationship based on the second control result, calculate the recovered energy based on the third control result, perform first control on the process to compensate based on the recovered energy, and establish a second mapping relationship.

2. The intelligent control method for ship cabin painting process as described in claim 1, characterized in that: Obtain standard process parameters, including preheating air temperature, preheating time, spraying pressure, spraying distance, spraying air humidity, spraying time, spraying liquid composition and its proportion, spraying air temperature, and spraying liquid solid concentration; The standard process parameters are obtained from the process database.

3. The intelligent control method for ship cabin painting process as described in claim 1, characterized in that: The first regulation includes cooling and heating, and the method for regulating the compartment according to standard process parameters includes: Obtain the current temperature of the cabin and compare it with the preheated air temperature; When the current temperature is equal to the preheated air temperature, no first adjustment is performed; When the current temperature is higher than the preheated air temperature, the first control setting will be set to cooling. When the current temperature is lower than the preheated air temperature, the first control is set to increase the temperature; The cooling and heating are achieved by regulating the heat exchange between the coolant pipes and the cabin air.

4. The intelligent control method for ship cabin painting process as described in claim 3, characterized in that: When the first control is cooling, the first temperature is set to the coolant temperature, which is lower than the preheated air temperature. The first flow rate and the first velocity are set to the coolant inlet flow rate and the coolant circulation velocity, respectively. The first flow rate and the first velocity represent the first flow rate and the first velocity at each time point in the heat exchange process, which are obtained through simulation software. This ensures that the coolant temperature is maintained at the first temperature at each time point in the heat exchange. The end time of cooling is indicated when the air temperature after the first control is equal to the preheated air temperature. When the first control is to raise the temperature, the second temperature is set to the coolant temperature, which is greater than the preheated air temperature. The second flow rate and the second flow velocity are set to the coolant inlet flow rate and the coolant circulation flow rate, respectively. The second flow rate and the second flow velocity represent the second flow rate and the second flow velocity at each time point in the heat exchange process, which are obtained through simulation software. This ensures that the coolant temperature is maintained at the second temperature at each time point in the heat exchange process. The end time of the temperature rise is indicated when the air temperature after the first control is equal to the preheated air temperature. During the first control process, the distribution of harmful gases and the parameters of the refluxed material in the cabin are monitored in real time. The distribution of harmful gases is represented by the concentration of harmful gases at each coordinate point in the cabin, and the parameters of the refluxed material are represented by the outlet temperature, outlet flow rate, and outlet velocity of the purification liquid used to purify harmful gases.

5. The intelligent control method for ship cabin painting process as described in claim 4, characterized in that: The purification equipment parameters include the inlet flow rate of the purification liquid, the inlet flow rate of the purification liquid, and the inlet temperature of the purification liquid. The inlet temperature of the purification liquid is a fixed value obtained through historical experience. The methods for secondary regulation of the purification equipment based on the distribution of harmful gases include: Before monitoring the distribution of harmful gases, a coordinate system is established for the cabin. Any corner point of the cabin floor is selected as the origin, and any adjacent side of the corner point is used as the x-axis, y-axis, and z-axis to obtain the coordinate system. The cabin space is represented as a cuboid or an approximate cuboid. When the cabin space is an approximate cuboid, the cabin is filled into a cuboid using modeling software, and the coordinate system is established based on the filled cuboid. Obtain the distribution of harmful gases at any point in time within the spraying period, denoted as the first distribution. Obtain any coordinate point in the first distribution, denoted as the first coordinate point. Obtain the concentration value at the first coordinate point, set the first value as the concentration gradient, calculate the first sum and first difference between the concentration value and the concentration gradient at the first coordinate point, construct a concentration interval with the first difference as the lower limit and the first sum as the upper limit. In the first distribution, mark the coordinate points belonging to the concentration interval, set the coordinate points of each first mark as the first point cloud, and obtain the geometric center point of the first point cloud. According to the time sequence, obtain the geometric center point of the first point cloud corresponding to the distribution of harmful gases after the first distribution, draw each geometric center point as a migration curve, calculate the slope at each point of the migration curve, and set the second time period as the adjustment time period. Obtain the current inlet flow rate and current inlet flow rate of the purified liquid at the start time of the adjustment period. Obtain the slope at the start time of the adjustment period, denoted as the first slope. Obtain the slope at the start time of adjacent adjustment periods, denoted as the second slope. Calculate the first ratio of the second slope to the first slope. Calculate the first product and the second product of the first ratio with the current inlet flow rate and current inlet flow rate of the purified liquid, respectively. Update the first product and the second product to the new inlet flow rate and new inlet flow rate of the purified liquid at the start time of the adjustment period. Iterate through the current inlet flow rate and current inlet flow of the purified liquid at the start time node of each adjustment period, and repeat the above update process.

6. The intelligent control method for ship cabin painting process as described in claim 5, characterized in that: The methods for third-party regulation of energy-saving equipment based on reflux material parameters include: The reflux material parameters are expressed as the outlet temperature, outlet flow rate, and outlet velocity of the purification liquid used to purify harmful gases. The purified liquid outlet temperature, purified liquid outlet flow rate, and purified liquid outlet velocity are obtained. The current energy-saving equipment's transmission speed and transmission flow rate are also obtained. The transmission speed and transmission flow rate are expressed as the transmission speed and transmission flow rate of the liquid transmitted through the energy-saving equipment to the first controlled pipeline. Get the start time, current time, and process duration; calculate the second sum of the start time and process duration; and compare the current time with the second sum. When the current time point is earlier than the second sum value, the first control of the next compartment is obtained. When the first control of the next compartment is cooling or heating, the return temperature of the purification liquid is compared with the first temperature or the second temperature. When the temperature of the purification liquid is equal to the first temperature or the second temperature, the purification liquid is transferred to the pipe of the first control of the next compartment at the purification liquid outlet flow rate and the purification liquid outlet velocity. When the temperature of the purification liquid is not equal to the first temperature or the second temperature, the purification liquid is controlled to the first temperature or the second temperature, and the controlled purification liquid is transferred to the pipe of the first control of the next compartment at the purification liquid outlet flow rate and the purification liquid outlet velocity. When the current time point is later than the second sum value, the first control of the current compartment is obtained. When the first control of the current compartment is cooling or heating, the return temperature of the purification liquid is compared with the first temperature or the second temperature. When the temperature of the purification liquid is equal to the first temperature or the second temperature, the purification liquid is transmitted to the pipeline of the first control of the current compartment at the purification liquid outlet flow rate and the purification liquid outlet velocity. When the temperature of the purification liquid is not equal to the first temperature or the second temperature, the purification liquid is controlled to the first temperature or the second temperature, and the controlled purification liquid is transmitted to the pipeline of the first control of the current compartment at the purification liquid outlet flow rate and the purification liquid outlet velocity.

7. The intelligent control method for ship cabin painting process as described in claim 5, characterized in that: A first mapping relationship is established based on the second control result. The first mapping relationship is represented as the mapping relationship between the compartment number and the current purification liquid inlet flow rate and current purification liquid inlet flow rate at the start time node of each adjustment time period during the spraying process. By inputting the compartment number, the start time node of the corresponding adjustment time period and the corresponding current purification liquid inlet flow rate and current purification liquid inlet flow rate are obtained.

8. The intelligent control method for ship compartment painting process as described in claim 6, characterized in that: The recovered energy is calculated based on the third control result, and the calculation method for the recovered energy includes: When there is no need to regulate the purification fluid, the first heat of the purification fluid transferred to the chamber is calculated using the heat formula, and the first heat is set as the recovered energy. When it is necessary to regulate the purification liquid, the first electrical energy required for the purification liquid to heat up or cool down is calculated using the electrical energy calculation formula. The second difference between the first heat and the first electrical energy is then calculated, and the second difference is set as the recovered energy.

9. The intelligent control method for ship cabin painting process as described in claim 8, characterized in that: The methods for compensating for the initial process control based on recovered energy include: Calculate the second heat required to raise the current air temperature to the preheated air temperature under standard process parameters. Calculate the third difference between the second heat and the first heat. Use the third difference as the dependent variable of the heat formula and obtain the combination of each independent variable. Update the coolant inlet temperature, coolant inlet flow rate, and coolant circulation velocity according to any combination of independent variables. Establish a second mapping relationship between the compartment number and the updated coolant inlet temperature, coolant inlet flow rate, and coolant circulation velocity.

10. An intelligent control system for the ship cabin painting process, the system being used to execute the intelligent control method for the ship cabin painting process as described in claim 1, characterized in that, Includes a preheating module, a recycling module, and a building module; The preheating module performs the first adjustment of the compartment according to the standard process parameters, and monitors the distribution of harmful gases and the parameters of the refluxed material in the compartment in real time. The recovery module performs a second adjustment to the purification equipment based on the distribution of harmful gases, and a third adjustment to the energy-saving equipment based on the parameters of the returned material. The construction module establishes a first mapping relationship based on the second control result, calculates the recovered energy based on the third control result, performs first control on the process to compensate based on the recovered energy, and establishes a second mapping relationship.

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