Intelligent diagnosis method and system for temperature control fault of refrigerated cabinet for cruise ship

Abstract

The invention relates to the technical field of refrigerated cabinet temperature control monitoring, and discloses an intelligent diagnosis method and system for a temperature control fault of a refrigerated cabinet for a cruise ship. The system comprises a cruise ship refrigerated cabinet temperature adjustment parameter processing module, a cruise ship refrigerated cabinet temperature adjustment response fault diagnosis module and a cruise ship refrigerated cabinet temperature adjustment response fault classification module. Based on the maximum number of cycles of cruise ship refrigerated cabinet temperature regulation operation, a temperature regulation rate variation database in a cruise ship refrigerated cabinet temperature regulation response fault state is scientifically established, and mass data of the cruise ship refrigerated cabinet temperature regulation rate variation is scientifically collected based on big data. According to the cruise ship refrigerated cabinet temperature regulation response fault event probability data, comprehensive and reliable diagnosis of the cruise ship refrigerated cabinet temperature regulation response fault event type is carried out, accurate identification of the cruise ship refrigerated cabinet temperature regulation response fault type based on big data and probability statistics is realized, and the scientificity of cruise ship refrigerated cabinet temperature control fault diagnosis is improved.

Description

Technical Field

[0001] This invention relates to the technical field of temperature control and monitoring of refrigerated display cases, specifically to an intelligent diagnostic method and system for temperature control faults in refrigerated display cases used on cruise ships. Background Technology

[0002] Temperature regulation malfunctions in cruise ship refrigerated display cases refer to the inability of the refrigeration unit to accurately and reliably adjust the set temperature under the specific environment of a ship. These malfunctions often involve multiple aspects, including the control system, refrigeration system, and electrical system. Cruise ship refrigerated display cases need to adapt to extreme temperature and humidity variations from the equator to the poles and resist continuous vibration and salt spray corrosion. Their control systems require high-precision temperature regulation capabilities. Temperature differences between different areas on a cruise ship (such as the high-temperature galley and the low-temperature refrigerated area), as well as differences in cargo loading density and door opening frequency, can lead to uneven heat loads, further causing localized temperature fluctuations or system overload. Furthermore, factors such as voltage fluctuations at sea and insufficient waterproofing of the equipment can exacerbate system instability. These malfunctions not only threaten food and cargo safety but also increase energy consumption. Therefore, monitoring temperature regulation malfunctions in cruise ship refrigerated display cases is crucial to ensuring safe and reliable temperature control. Existing temperature control processes for cruise ship refrigerated display cases cannot achieve adaptive diagnosis of temperature regulation response malfunction states based on geographical temperature differences on the cruise ship, nor can they scientifically diagnose the types of temperature regulation response malfunctions, thus reducing the safety and effectiveness of temperature control in cruise ship refrigerated display cases.

[0003] Chinese invention patent CN119321654B, published on May 6, 2025, discloses an intelligent control method for environmentally friendly refrigerators based on IoT data acquisition. This method involves marking the refrigerator as a test object, generating several test cycles of equal duration, and assigning corresponding adjustment parameters to each test cycle. Within each test cycle, the method acquires the air temperature value of the test object in real time and marks it as the air temperature value. It then retrieves the energy-saving temperature range of the test object, determines whether the air temperature value is within the energy-saving temperature range, and controls the compressor operation based on the determination result. However, this technical solution cannot achieve intelligent diagnosis of refrigerator temperature response faults. Summary of the Invention

[0004] (a) Technical problems to be solved

[0005] To address the issues raised in existing cruise ship refrigerated cabinet temperature control systems, such as the inability to adaptively diagnose temperature regulation response fault states based on the cruise ship's geographical temperature difference, and the inability to scientifically diagnose temperature regulation response fault types, thus reducing the safety and effectiveness of cruise ship refrigerated cabinet temperature control, this paper aims to achieve the following: adaptive diagnosis of refrigerated cabinet temperature regulation response fault states based on the cruise ship's geographical temperature difference; accurate identification of refrigerated cabinet temperature regulation response fault types based on probability analysis; and improved safety and effectiveness of cruise ship refrigerated cabinet temperature control.

[0006] (II) Technical Solution

[0007] This invention is achieved through the following technical solution: an intelligent diagnostic method for temperature control faults in refrigerated display cases used on cruise ships, the method comprising the following steps:

[0008] Step 1: Collect real-time geographic temperature data of the cruise ship, initial temperature value of the refrigerator, final temperature value of the refrigerator, and refrigerator temperature adjustment time data; calculate and process the temperature adjustment difference during the refrigerator temperature adjustment process to obtain the refrigerator temperature adjustment temperature difference value; calculate and process the temperature adjustment rate during the refrigerator temperature adjustment process to obtain the refrigerator temperature adjustment rate value.

[0009] Step 2: Based on the real-time geographic temperature of the cruise ship, identify the temperature regulation rate threshold of the cruise ship's refrigerated cabinet to obtain the temperature regulation rate threshold of the target cruise ship's geographic temperature refrigerated cabinet; analyze and process the temperature regulation response fault status of the cruise ship's refrigerated cabinet to obtain the temperature regulation response fault analysis data of the target cruise ship's refrigerated cabinet. When it is normal, directly end this cruise ship refrigerated cabinet temperature control fault diagnosis operation.

[0010] Step 3: When a fault occurs, based on the maximum number of cycles for the cruise ship's refrigerated container temperature regulation operation, steps 1 to 2 are executed sequentially and cyclically to establish a database of temperature regulation rate changes under the fault state of the cruise ship's refrigerated container temperature regulation response, resulting in a fault database of temperature regulation rate changes in the cruise ship's refrigerated container. The types of cruise ship refrigerated container temperature regulation response fault events are differentiated to obtain cruise ship refrigerated container temperature regulation response fault event classification data. The occurrence probabilities of cruise ship refrigerated container temperature regulation response fault event types are statistically processed to obtain cruise ship refrigerated container temperature regulation response fault event probability data. A comprehensive diagnostic process is performed on the types of cruise ship refrigerated container temperature regulation response fault events to obtain cruise ship refrigerated container temperature regulation response fault diagnosis result information.

[0011] Preferably, the following steps are taken to collect real-time geographic temperature values ​​of the cruise ship, initial temperature values ​​of the refrigerated display cases, final temperature values ​​of the refrigerated display cases, and refrigerated display case refrigeration time data; calculate and process the temperature adjustment difference during the refrigerated display case refrigeration process to obtain the refrigerated display case temperature adjustment difference value; and calculate and process the temperature adjustment rate during the refrigerated display case refrigeration process to obtain the refrigerated display case refrigeration rate value, including the following steps:

[0012] Step 11: Collect temperature data of the current geographical environment during the cruise ship's journey online using temperature sensors, and generate real-time geographical temperature values ​​for the cruise ship, with the unit being degrees Celsius; collect initial temperature data, final temperature data, and total duration data of the cruise ship's refrigerated cabinets during the cruise ship's journey in the current geographical environment via the refrigerated cabinet control terminal, and generate initial temperature value, final temperature value, and duration data for the refrigerated cabinet temperature adjustment, with the units of the initial temperature value and the final temperature value being degrees Celsius, and the unit of the duration data being minutes;

[0013] Step 12: Calculate the temperature adjustment difference during the cruise ship's refrigerated display case temperature adjustment process based on the initial temperature value and the final temperature value of the refrigerated display case temperature adjustment process to obtain the refrigerated display case temperature adjustment difference value; calculate the temperature adjustment rate during the cruise ship's refrigerated display case temperature adjustment process based on the refrigerated display case temperature adjustment difference value and the refrigerated display case temperature adjustment duration data to obtain the refrigerated display case temperature adjustment rate value.

[0014] Preferably, the temperature adjustment difference during the cruise ship's refrigerated display case temperature adjustment process is calculated based on the initial temperature value and the final temperature value of the refrigerated display case temperature adjustment process to obtain the refrigerated display case temperature adjustment difference value; the temperature adjustment rate during the cruise ship's refrigerated display case temperature adjustment process is calculated based on the refrigerated display case temperature adjustment difference value and the refrigerated display case temperature adjustment time data to obtain the refrigerated display case temperature adjustment rate value, including the following steps:

[0015] Step 121: Divide the initial temperature value of the refrigerator and the final temperature value of the refrigerator by taking the absolute value of the difference and calculate the temperature difference value of the refrigerator. The temperature difference value of the refrigerator represents the temperature change value of the entire temperature adjustment process of the cruise ship refrigerator during normal temperature adjustment. The unit of the temperature difference value of the refrigerator is degrees Celsius.

[0016] Step 122: The temperature difference of the refrigerator and the temperature adjustment time data of the refrigerator are processed by quotienting the temperature difference and the temperature adjustment time to calculate the refrigerator temperature adjustment rate value. The refrigerator temperature adjustment rate value represents the speed of the entire temperature adjustment response during the normal temperature adjustment process of the cruise ship refrigerator. The unit of the refrigerator temperature adjustment rate value is degrees Celsius per minute.

[0017] Preferably, the temperature regulation rate threshold of the cruise ship's refrigerated cabinets is identified based on the real-time geographic temperature of the cruise ship to obtain the target cruise ship geographic temperature refrigerated cabinet temperature regulation rate threshold; the temperature regulation response fault status of the cruise ship's refrigerated cabinets is analyzed and processed to obtain the target cruise ship refrigerated cabinet temperature regulation response fault analysis data; when it is normal, the current cruise ship refrigerated cabinet temperature control fault diagnosis operation is directly terminated, including the following steps:

[0018] Step 21: Based on the real-time geographic temperature value of the cruise ship and the temperature adjustment rate threshold matrix of the cruise ship geographic temperature refrigerator, perform temperature adjustment rate threshold identification processing of the cruise ship refrigerator to obtain the target temperature adjustment rate threshold of the cruise ship geographic temperature refrigerator.

[0019] Step 22: Based on the temperature regulation rate value of the refrigerator and the temperature regulation rate threshold of the target cruise ship's geographical temperature refrigerator, perform temperature regulation response fault status analysis and processing of the cruise ship refrigerator to obtain temperature regulation response fault analysis data of the target cruise ship refrigerator. The temperature regulation response fault analysis data of the target cruise ship refrigerator includes normal and fault. When it is normal, directly end the current cruise ship refrigerator temperature control fault diagnosis operation.

[0020] Preferably, the process of identifying the temperature regulation rate threshold of the cruise ship's refrigerated cabinet based on the real-time geographic temperature value of the cruise ship and the temperature regulation rate threshold matrix of the cruise ship's geographic temperature refrigerated cabinet includes the following steps:

[0021] Step 211: Establish the temperature regulation rate threshold matrix for cruise ship geographic temperature refrigerated cabinets. ,in Indicates the first The cruise ship geographical temperature refrigerated cabinet temperature adjustment rate threshold corresponds to different cruise ship geographical temperature types. This threshold represents the minimum temperature adjustment response rate set to ensure the refrigeration function of the cruise ship refrigerated cabinet under different cruise ship geographical temperature environments. Setting this threshold is crucial because cruise ships are affected by geographical temperature differences during transit. If the refrigerated cabinet's temperature adjustment response is inadequate, it will lead to a prolonged temperature adjustment process, causing refrigerated items to spoil. The unit is degrees Celsius per minute;

[0022] Step 212: Combine the real-time geographic temperature value of the cruise ship with the temperature regulation rate threshold matrix of the cruise ship's geographic temperature refrigerator. The temperature regulation rate threshold of the cruise ship's geographical temperature refrigerated cabinet mentioned in the text Perform geographic temperature value matching on the cruise ship to find the temperature adjustment rate threshold of the cruise ship's geographic temperature refrigerator corresponding to the real-time geographic temperature value. The target cruise ship geographical temperature refrigerated cabinet temperature adjustment rate threshold is constructed. The target cruise ship geographical temperature refrigerated cabinet temperature adjustment rate threshold represents the optimal cruise ship refrigerated cabinet temperature adjustment rate threshold that matches the current geographical environment temperature during the cruise ship's voyage. The unit of the target cruise ship geographical temperature refrigerated cabinet temperature adjustment rate threshold is degrees Celsius per minute.

[0023] Preferably, based on the refrigerated display case temperature adjustment rate value and the target cruise ship geographical temperature refrigerated display case temperature adjustment rate threshold, a fault status analysis of the cruise ship refrigerated display case temperature regulation response is performed to obtain target cruise ship refrigerated display case temperature regulation response fault analysis data. The target cruise ship refrigerated display case temperature regulation response fault analysis data includes normal and fault conditions. When it is normal, the current cruise ship refrigerated display case temperature control fault diagnosis operation is directly terminated, including the following steps:

[0024] Step 221: Compare the temperature regulation rate value of the refrigerated cabinet with the temperature regulation rate threshold of the target cruise ship's geographical temperature refrigerated cabinet, and generate the temperature regulation response fault analysis data of the target cruise ship refrigerated cabinet based on the comparison result of the temperature regulation rate value of the cruise ship refrigerated cabinet.

[0025] When the temperature regulation rate of the refrigerator is less than the temperature regulation rate threshold of the refrigerator in the target cruise ship's geographical temperature, it means that the temperature regulation response rate of the refrigerator in the cruise ship is not up to standard due to the current geographical temperature during the cruise ship's voyage. This causes the internal temperature regulation process of the refrigerator to take a long time, resulting in the deterioration of refrigerated items. In this case, the fault analysis data of the temperature regulation response of the refrigerator in the target cruise ship is output as a fault.

[0026] When the temperature regulation rate of the refrigerator is not less than the temperature regulation rate threshold of the target cruise ship's geographical temperature, it means that the temperature regulation response rate of the cruise ship's refrigerator meets the standard under the current geographical temperature during the cruise ship's voyage. This ensures that the time taken for the internal temperature regulation process of the refrigerator fully meets the refrigeration requirements of the items. In this case, the output of the target cruise ship's refrigerator temperature regulation response fault analysis data is normal, and the current cruise ship refrigerator temperature control fault diagnosis operation is directly terminated.

[0027] Preferably, when a fault occurs, steps 1 to 2 are executed sequentially and cyclically based on the maximum number of cycles for the cruise ship's refrigerated display case temperature regulation operation to establish a database of temperature regulation rate changes under fault conditions, resulting in a fault database of cruise ship refrigerated display case temperature regulation rate changes; the types of cruise ship refrigerated display case temperature regulation response fault events are differentiated to obtain cruise ship refrigerated display case temperature regulation response fault event classification data; the occurrence probabilities of cruise ship refrigerated display case temperature regulation response fault event types are statistically processed to obtain cruise ship refrigerated display case temperature regulation response fault event probability data; and a comprehensive diagnostic process is performed on the types of cruise ship refrigerated display case temperature regulation response fault events to obtain cruise ship refrigerated display case temperature regulation response fault diagnosis result information, including the following steps:

[0028] Step 31: When the target cruise ship refrigerator temperature regulation response fault analysis data indicates a fault, Step 1 to Step 2 are executed sequentially based on the maximum number of cycles of the cruise ship refrigerator temperature regulation operation to establish a database of temperature regulation rate changes under the cruise ship refrigerator temperature regulation response fault state, resulting in a cruise ship refrigerator temperature regulation rate change fault database; Based on the cruise ship refrigerator temperature regulation rate change fault database and the standard temperature regulation rate change interval set of cruise ship refrigerator temperature regulation response fault events, the cruise ship refrigerator temperature regulation response fault event type is distinguished, resulting in a cruise ship refrigerator temperature regulation response fault event classification data set;

[0029] Step 32: Based on the classification data set of cruise ship refrigerator temperature regulation response fault events, perform statistical processing on the occurrence probability of cruise ship refrigerator temperature regulation response fault event types to obtain a probability data set of cruise ship refrigerator temperature regulation response fault events; perform comprehensive diagnostic processing on the types of cruise ship refrigerator temperature regulation response fault events based on the probability data set of cruise ship refrigerator temperature regulation response fault events to obtain cruise ship refrigerator temperature regulation response fault diagnosis result information.

[0030] Preferably, when the target cruise ship refrigerator temperature regulation response fault analysis data indicates a fault, steps 1 to 2 are executed sequentially based on the maximum number of cycles of the cruise ship refrigerator temperature regulation operation to establish a database of temperature regulation rate changes under the cruise ship refrigerator temperature regulation response fault state, resulting in a cruise ship refrigerator temperature regulation rate change fault database. Based on the cruise ship refrigerator temperature regulation rate change fault database and the standard temperature regulation rate change interval set of cruise ship refrigerator temperature regulation response fault events, the cruise ship refrigerator temperature regulation response fault event type differentiation processing is performed to obtain a cruise ship refrigerator temperature regulation response fault event classification data set, including the following steps:

[0031] Step 311: When the fault analysis data of the target cruise ship refrigerated cabinet temperature regulation response is a fault, based on the set maximum number of cycles for the cruise ship refrigerated cabinet temperature regulation operation. The process involves sequentially executing steps 1 and 2 to obtain fault analysis data for the temperature regulation response of the target cruise ship's refrigerated cabinet. Under the condition that the generated refrigerated cabinet temperature regulation rate value is a fault, the temperature regulation rate value of the generated refrigerated cabinet is compared with the temperature regulation rate threshold corresponding to the geographical temperature of the target cruise ship. The difference between the generated refrigerated cabinet temperature regulation rate value and the temperature regulation rate threshold is then summed, and the absolute value is taken. This process is used to construct a fault database for the change in the temperature regulation rate of the cruise ship's refrigerated cabinet. ,in Indicates the first The fault data on the change in temperature regulation rate of the cruise ship refrigerator is collected in steps 1 to 2 in the next cycle. The fault data on the change in temperature regulation rate of the cruise ship refrigerator reflects the difference between the actual temperature regulation response rate and the standard temperature regulation response rate of the cruise ship refrigerator when the fault analysis data of the target cruise ship refrigerator temperature regulation response is faulty. The unit of the fault data on the change in temperature regulation rate of the cruise ship refrigerator is degrees Celsius per minute.

[0032] Step 312: Establish a set of standard temperature regulation rate change intervals for cruise ship refrigerated display case temperature regulation response fault events. ,in This indicates the standard temperature regulation rate change range corresponding to the temperature regulation response fault event type of the cruise ship's refrigerated display case. and These represent the standard temperature adjustment rate change ranges for the temperature regulation response fault events of the cruise ship's refrigerated compartments. The standard temperature regulation rate change value for temperature regulation response failure events in cruise ship refrigerators (left and right sides) indicates that when the temperature regulation response failure analysis data of the target cruise ship refrigerator is faulty, it is due to equipment failure in the refrigerator causing a large difference between the actual temperature regulation response rate and the standard temperature regulation response rate corresponding to the target cruise ship's geographical temperature refrigerator temperature regulation rate threshold. This indicates the standard temperature regulation rate change range corresponding to the temperature regulation response failure event type of the cruise ship refrigerated display case. and These represent the standard temperature adjustment rate change ranges for the temperature regulation response fault events of the cruise ship's refrigerated display cases. The standard temperature regulation rate change value for the temperature regulation response fault event of the cruise ship's refrigerated cabinet is defined as follows: When the temperature regulation response fault analysis data of the target cruise ship's refrigerated cabinet indicates a fault, it is due to fluctuations in the refrigeration performance of the refrigerated cabinet, resulting in a small difference between the actual temperature regulation response rate and the standard temperature regulation response rate corresponding to the target cruise ship's geographical temperature refrigerated cabinet temperature regulation rate threshold. , , and The units are all degrees Celsius per minute;

[0033] Step 313: Add the cruise ship refrigerated container temperature regulation rate change fault database. The fault data regarding the change in temperature control rate of the cruise ship's refrigerated display case. According to the maximum number of cycles for adjusting the temperature of the cruise ship's refrigerated display cases. Ordered set of standard temperature regulation rate change intervals for the temperature regulation response fault events of the cruise ship refrigerated cabinets The internal temperature control response fault event standard temperature rate change range of the cruise ship refrigerated cabinet described above to The standard temperature regulation rate change value of the left and right cruise ship refrigerated display cases' temperature regulation response fault events is used to match the temperature regulation rate change value, and fault data matching the temperature regulation rate change value of the cruise ship refrigerated display cases is searched. The text information of the cruise ship refrigerator temperature regulation response failure event type, corresponding to the standard temperature rate change range of the aforementioned cruise ship refrigerator temperature regulation response failure event, is matched and then used to generate a cruise ship refrigerator temperature regulation response failure event classification dataset after data identification. ,in This indicates fault data related to the change in the temperature control rate of the cruise ship's refrigerated display case. The corresponding cruise ship refrigerator temperature regulation response fault event classification data includes either temperature regulation fault events or temperature regulation performance events.

[0034] Preferably, the probability of occurrence of cruise ship refrigerator temperature regulation response failure event types is statistically processed based on the cruise ship refrigerator temperature regulation response failure event classification data set to obtain a cruise ship refrigerator temperature regulation response failure event probability data set; the comprehensive diagnostic processing of cruise ship refrigerator temperature regulation response failure event types is performed based on the cruise ship refrigerator temperature regulation response failure event probability data set to obtain cruise ship refrigerator temperature regulation response failure diagnosis result information, including the following steps:

[0035] Step 321: Classify the cruise ship refrigerated cabinet temperature regulation response fault event data set according to temperature regulation fault event keywords and temperature regulation performance event keywords. The data on the classification of fault events in the temperature regulation response of cruise ship refrigerated cabinets described in the article The occurrence frequency of temperature regulation response failure events in cruise ship refrigerated compartments is statistically analyzed, and a set of failure event counts for cruise ship refrigerated compartment temperature regulation response failure events is generated. ,in This indicates the maximum number of cycles required for adjusting the temperature of the cruise ship's refrigerated compartments. The cycle of steps 1 and 2 generates the number of cruise ship refrigerated display case temperature regulation response fault events corresponding to the temperature regulation fault event type. This indicates the maximum number of cycles required for adjusting the temperature of the cruise ship's refrigerated compartments. The cycle of steps 1 and 2 generates the number of cruise ship refrigerated display case temperature regulation response fault events corresponding to the temperature regulation performance event type. + = ;

[0036] Step 322: Set the number of fault events in the temperature regulation response of the cruise ship's refrigerated cabinet. The number of temperature regulation response failure events of the cruise ship refrigerated cabinets described in the article to Each is compared with the maximum number of cycles of temperature adjustment operation of the cruise ship's refrigerated cabinet. Numerical quotient measurement was performed, and a dataset of probability events for temperature regulation response failures in cruise ship refrigerated containers was generated. ,in This indicates the maximum number of cycles required for adjusting the temperature of the cruise ship's refrigerated compartments. Steps 1 and 2 are executed repeatedly to generate probability data of cruise ship refrigerated cabinet temperature regulation response failure events corresponding to temperature regulation failure events. This indicates the maximum number of cycles required for adjusting the temperature of the cruise ship's refrigerated compartments. Steps 1 and 2 are executed repeatedly to generate probability data of cruise ship refrigerated cabinet temperature regulation response failure events corresponding to temperature regulation performance events.

[0037] Step 323: Set up the probability data of the temperature regulation response failure event of the cruise ship's refrigerated cabinet. The probability data of temperature regulation response failure events of the cruise ship refrigerated cabinet described in the article and Compare the probability values ​​of cruise ship refrigerated display case temperature regulation response failure events between different types of refrigerated display cases, and generate cruise ship refrigerated display case temperature regulation response failure diagnosis results based on the comparison results.

[0038] when Greater than When the target cruise ship refrigerator temperature regulation response fault analysis data is faulty, the cause of the cruise ship refrigerator temperature regulation response fault is a temperature regulation fault event, and the output of the cruise ship refrigerator temperature regulation response fault diagnosis result information is a temperature regulation fault event.

[0039] when equal When the target cruise ship refrigerator temperature regulation response fault analysis data is faulty, the cause of the cruise ship refrigerator temperature regulation response fault is the coexistence of temperature regulation fault event and temperature regulation performance event. The output of the cruise ship refrigerator temperature regulation response fault diagnosis result information is temperature regulation fault event and temperature regulation performance event.

[0040] when Less than When the target cruise ship refrigerator temperature regulation response fault analysis data is a fault, the cause of the cruise ship refrigerator temperature regulation response fault is a temperature regulation performance event, and the output of the cruise ship refrigerator temperature regulation response fault diagnosis result information is a temperature regulation performance event.

[0041] A smart diagnostic system for temperature control faults in cruise ship refrigerators is provided to implement the aforementioned smart diagnostic method for temperature control faults in cruise ship refrigerators. The system includes a cruise ship refrigerator temperature regulation parameter processing module, a cruise ship refrigerator temperature regulation response fault diagnosis module, and a cruise ship refrigerator temperature regulation response fault classification module.

[0042] The cruise ship refrigerated cabinet temperature regulation parameter processing module includes a cruise ship geographical temperature acquisition unit, a refrigerated cabinet initial temperature acquisition unit, a refrigerated cabinet final temperature acquisition unit, a refrigerated cabinet temperature regulation duration acquisition unit, a refrigerated cabinet temperature difference calculation unit, and a refrigerated cabinet temperature regulation rate calculation unit.

[0043] The cruise ship geographic temperature acquisition unit collects real-time geographic temperature values ​​of the cruise ship through temperature sensors; the refrigerator initial temperature acquisition unit collects the initial temperature value of the refrigerator through the refrigerator control terminal; the refrigerator final temperature acquisition unit collects the final temperature value of the refrigerator through the refrigerator control terminal; the refrigerator temperature adjustment duration acquisition unit collects the refrigerator temperature adjustment duration data through the refrigerator control terminal; the refrigerator temperature difference calculation unit calculates the temperature adjustment difference during the cruise ship refrigerator temperature adjustment process based on the initial temperature value and the final temperature value of the refrigerator, obtaining the refrigerator temperature adjustment temperature difference value; the refrigerator temperature adjustment rate calculation unit calculates the temperature adjustment rate during the cruise ship refrigerator temperature adjustment process based on the refrigerator temperature adjustment temperature difference value and the refrigerator temperature adjustment duration data, obtaining the refrigerator temperature adjustment rate value.

[0044] The cruise ship refrigerator temperature regulation response fault diagnosis module includes a cruise ship geographical temperature refrigerator temperature regulation rate threshold storage unit, a target cruise ship geographical temperature refrigerator temperature regulation rate threshold identification unit, and a cruise ship refrigerator temperature regulation response fault analysis unit.

[0045] The cruise ship geographic temperature refrigerator temperature regulation rate threshold storage unit is used to store the cruise ship geographic temperature refrigerator temperature regulation rate threshold; the target cruise ship geographic temperature refrigerator temperature regulation rate threshold identification unit performs temperature regulation rate threshold identification processing on the cruise ship refrigerator based on the real-time geographic temperature value of the cruise ship and the cruise ship geographic temperature refrigerator temperature regulation rate threshold to obtain the target cruise ship geographic temperature refrigerator temperature regulation rate threshold; the cruise ship refrigerator temperature regulation response fault analysis unit performs temperature regulation response fault state analysis processing on the cruise ship refrigerator based on the refrigerator temperature regulation rate value and the target cruise ship geographic temperature refrigerator temperature regulation rate threshold to obtain target cruise ship refrigerator temperature regulation response fault analysis data.

[0046] The cruise ship refrigerator temperature regulation response fault classification module includes a cruise ship refrigerator temperature regulation rate change fault database establishment unit, a cruise ship refrigerator temperature regulation response fault event standard temperature regulation rate change range storage unit, a cruise ship refrigerator temperature regulation response fault event differentiation unit, a cruise ship refrigerator temperature regulation response fault event probability statistics unit, and a cruise ship refrigerator temperature regulation response fault type diagnosis unit.

[0047] The cruise ship refrigerated display case temperature regulation rate change fault database establishment unit establishes a database of temperature regulation rate changes under cruise ship refrigerated display case temperature regulation response fault states based on the maximum number of cycles of temperature regulation operation of the cruise ship refrigerated display case, thus obtaining the cruise ship refrigerated display case temperature regulation rate change fault database. The cruise ship refrigerated display case temperature regulation response fault event standard temperature regulation rate change interval storage unit stores the standard temperature regulation rate change intervals for cruise ship refrigerated display case temperature regulation response fault events. The cruise ship refrigerated display case temperature regulation response fault event differentiation unit differentiates cruise ship refrigerated display case temperature regulation rate change fault database and standard temperature regulation rate change intervals for cruise ship refrigerated display case temperature regulation response fault events. The system categorizes and processes temperature regulation response failure events to obtain classification data for these events. A probability statistics unit then performs probability analysis on the occurrence of each failure type based on this classification data, yielding probability data for each failure type. Finally, a fault diagnosis unit performs comprehensive diagnostic processing based on the probability data to obtain the fault diagnosis results.

[0048] (III) Beneficial Effects

[0049] This invention provides an intelligent diagnostic method and system for temperature control faults in refrigerated display cases used on cruise ships. It offers the following advantages:

[0050] I. By using temperature sensors and the refrigerated cabinet control terminal, the system efficiently and accurately acquires real-time geographic temperature values ​​of the cruise ship, as well as the initial temperature, final temperature, and duration of refrigerated cabinet temperature adjustment operations. This provides real data support for the scientific diagnosis of refrigerated cabinet temperature control faults under different geographic temperature conditions on the cruise ship. Based on the initial and final temperatures of the refrigerated cabinet temperature adjustment, and combined with numerical processing, the system dynamically calculates the temperature adjustment range of the cruise ship's refrigerated cabinets during the temperature adjustment process, providing reliable data support for the accurate calculation of the refrigerated cabinet temperature adjustment rate. Furthermore, based on the temperature difference and duration data of the refrigerated cabinet temperature adjustment, and combined with numerical processing, the system scientifically calculates the temperature adjustment rate of the cruise ship's refrigerated cabinets during the temperature adjustment process. This enables digital evaluation of the refrigerated cabinet temperature adjustment response speed under different geographic temperature conditions on the cruise ship, improving the accuracy of diagnosing cruise ship refrigerated cabinet temperature control faults.

[0051] Second, based on the real-time geographic temperature value of the cruise ship and combined with numerical analysis and big data storage, the temperature regulation rate threshold of the cruise ship's refrigerators is efficiently identified. This enables adaptive selection of the temperature regulation rate threshold based on the cruise ship's geographic temperature, improving the quality of fault diagnosis for the temperature regulation response of the refrigerators. Furthermore, based on the refrigerator's temperature regulation rate value and the target cruise ship geographic temperature refrigerator temperature regulation rate threshold, combined with numerical analysis, dynamic and efficient monitoring of the temperature regulation response fault status of the refrigerators is achieved. This enables reliable and accurate monitoring of temperature regulation response faults based on the cruise ship's geographic temperature, improving the safety of temperature regulation in cruise ships.

[0052] Third, a scientific database of temperature regulation rate changes under cruise ship refrigerator temperature regulation response fault conditions is established based on the maximum number of temperature regulation operation cycles. This enables the accurate collection of massive amounts of data on temperature regulation rate changes in cruise ship refrigerators based on big data, providing scientific decision support for refined analysis of cruise ship refrigerator temperature regulation response fault types and improving the quality of cruise ship refrigerator temperature regulation response fault diagnosis. Based on the fault database of cruise ship refrigerator temperature regulation rate change and the standard temperature regulation rate change range of cruise ship refrigerator temperature regulation response fault events, the types of cruise ship refrigerator temperature regulation response fault events are scientifically distinguished, enabling accurate assessment of cruise ship refrigerator temperature regulation response fault event types based on the characteristics of temperature regulation rate change. Finally, a comprehensive and reliable diagnosis of cruise ship refrigerator temperature regulation response fault event types is performed based on the probability data of cruise ship refrigerator temperature regulation response fault events, achieving accurate identification of cruise ship refrigerator temperature regulation response fault types based on big data and probability statistics, improving the scientific nature of cruise ship refrigerator temperature control fault diagnosis and the effectiveness of cruise ship refrigerator temperature regulation. Attached Figure Description

[0053] Figure 1This invention provides a schematic diagram of a module for an intelligent diagnostic system for temperature control faults in a cruise ship's refrigerated display case.

[0054] Figure 2 The flowchart illustrates an intelligent diagnostic method for temperature control faults in a cruise ship refrigerated display case, as provided by this invention. Detailed Implementation

[0055] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0056] An embodiment of the intelligent diagnostic method and system for temperature control faults in cruise ship refrigerated cabinets is as follows:

[0057] Example 1:

[0058] Please see Figures 1-2 A method for intelligent diagnosis of temperature control faults in refrigerated display cases on cruise ships, comprising the following steps:

[0059] Step 1: Collect real-time geographic temperature data of the cruise ship, initial temperature value of the refrigerator, final temperature value of the refrigerator, and refrigerator temperature adjustment time data; calculate and process the temperature adjustment difference during the refrigerator temperature adjustment process to obtain the refrigerator temperature adjustment temperature difference value; calculate and process the temperature adjustment rate during the refrigerator temperature adjustment process to obtain the refrigerator temperature adjustment rate value.

[0060] Step 2: Based on the real-time geographic temperature of the cruise ship, identify the temperature regulation rate threshold of the cruise ship's refrigerated cabinet to obtain the temperature regulation rate threshold of the target cruise ship's geographic temperature refrigerated cabinet; analyze and process the temperature regulation response fault status of the cruise ship's refrigerated cabinet to obtain the temperature regulation response fault analysis data of the target cruise ship's refrigerated cabinet. When it is normal, directly end this cruise ship refrigerated cabinet temperature control fault diagnosis operation.

[0061] Step 3: When a fault occurs, based on the maximum number of cycles for the cruise ship's refrigerated container temperature regulation operation, steps 1 to 2 are executed sequentially and cyclically to establish a database of temperature regulation rate changes under the fault state of the cruise ship's refrigerated container temperature regulation response, resulting in a fault database of temperature regulation rate changes in the cruise ship's refrigerated container. The types of cruise ship refrigerated container temperature regulation response fault events are differentiated to obtain cruise ship refrigerated container temperature regulation response fault event classification data. The occurrence probabilities of cruise ship refrigerated container temperature regulation response fault event types are statistically processed to obtain cruise ship refrigerated container temperature regulation response fault event probability data. A comprehensive diagnostic process is performed on the types of cruise ship refrigerated container temperature regulation response fault events to obtain cruise ship refrigerated container temperature regulation response fault diagnosis result information.

[0062] For further details, please refer to Figures 1-2 The process involves collecting real-time geographic temperature data from the cruise ship, initial temperature values ​​for refrigerated display cases, final temperature values ​​for refrigerated display cases, and refrigerated display case refrigeration time data. The temperature adjustment difference during the refrigerated display case refrigeration process is calculated to obtain the refrigerated display case temperature adjustment difference value. The temperature adjustment rate during the refrigerated display case refrigeration process is also calculated to obtain the refrigerated display case refrigeration rate value, including the following steps:

[0063] Step 11: Collect temperature data of the current geographical environment during the cruise ship's journey online using temperature sensors, and generate real-time geographical temperature values ​​for the cruise ship, in degrees Celsius; collect initial temperature data, final temperature data, and total duration data of the cruise ship's refrigerated cabinets during the cruise ship's journey in the current geographical environment via the refrigerated cabinet control terminal, and generate initial temperature value, final temperature value, and duration data for the refrigerated cabinets, in degrees Celsius for the initial temperature value and final temperature value, and in minutes for the duration data.

[0064] Step 12: Calculate the temperature adjustment difference during the cruise ship's refrigerated display case temperature adjustment process based on the initial temperature value and the final temperature value of the refrigerated display case temperature adjustment process to obtain the refrigerated display case temperature adjustment difference value; calculate the temperature adjustment rate during the cruise ship's refrigerated display case temperature adjustment process based on the refrigerated display case temperature adjustment difference value and the refrigerated display case temperature adjustment time data to obtain the refrigerated display case temperature adjustment rate value.

[0065] The temperature difference during the cruise ship's refrigerated display case temperature adjustment process is calculated based on the initial and final temperatures of the refrigerated display case, yielding the refrigerated display case temperature difference. The temperature adjustment rate during the cruise ship's refrigerated display case temperature adjustment process is then calculated based on the refrigerated display case temperature difference and the refrigerated display case temperature adjustment duration data, yielding the refrigerated display case temperature adjustment rate value. This calculation includes the following steps:

[0066] Step 121: Divide the initial temperature value of the refrigerator and the final temperature value of the refrigerator by taking the absolute value of the difference and calculate the temperature difference value of the refrigerator. The temperature difference value of the refrigerator represents the temperature change value of the entire temperature adjustment process of the cruise ship refrigerator during normal temperature adjustment. The unit of the temperature difference value of the refrigerator is degrees Celsius.

[0067] Step 122: Calculate the temperature difference and temperature adjustment time of the refrigerator by dividing the temperature difference and temperature adjustment time into a quotient value, and calculate the refrigerator temperature adjustment rate value. The refrigerator temperature adjustment rate value represents the speed of the entire temperature adjustment response during the normal temperature adjustment process of the cruise ship refrigerator. The unit of the refrigerator temperature adjustment rate value is degrees Celsius per minute.

[0068] By utilizing temperature sensors and refrigerated display case control terminals, the system efficiently and accurately acquires real-time geographic temperature values ​​of the cruise ship, as well as the initial, final, and duration information of refrigerated display case temperature adjustment operations. This provides real data support for the scientific diagnosis of refrigerated display case temperature control faults under different geographic temperature conditions on the cruise ship. Based on the initial and final temperatures of refrigerated display case temperature adjustment, and combined with numerical processing, the system dynamically calculates the temperature adjustment range of the cruise ship's refrigerated display case during the temperature adjustment process, providing reliable data support for the accurate calculation of the refrigerated display case temperature adjustment rate. Furthermore, based on the temperature difference and duration data of the refrigerated display case temperature adjustment, and combined with numerical processing, the system scientifically calculates the temperature adjustment rate of the cruise ship's refrigerated display case during the temperature adjustment process. This enables digital evaluation of the cruise ship's refrigerated display case temperature adjustment response speed under different geographic temperature conditions, improving the accuracy of diagnosing cruise ship refrigerated display case temperature control faults.

[0069] For further details, please refer to Figures 1-2 Based on the real-time geographic temperature of the cruise ship, the temperature regulation rate threshold of the cruise ship's refrigerated cabinets is identified to obtain the target cruise ship geographic temperature refrigerated cabinet temperature regulation rate threshold; the temperature regulation response fault status of the cruise ship's refrigerated cabinets is analyzed to obtain the target cruise ship refrigerated cabinet temperature regulation response fault analysis data. When it is normal, the current cruise ship refrigerated cabinet temperature control fault diagnosis operation is directly terminated, including the following steps:

[0070] Step 21: Based on the real-time geographic temperature value of the cruise ship and the temperature adjustment rate threshold matrix of the cruise ship geographic temperature refrigerator, perform temperature adjustment rate threshold identification processing for the cruise ship refrigerator to obtain the target temperature adjustment rate threshold of the cruise ship geographic temperature refrigerator.

[0071] Step 22: Based on the temperature regulation rate value of the refrigerator and the temperature regulation rate threshold of the refrigerator at the target cruise ship's geographical temperature, perform temperature regulation response fault status analysis and processing of the cruise ship refrigerator to obtain temperature regulation response fault analysis data of the target cruise ship refrigerator. The temperature regulation response fault analysis data of the target cruise ship refrigerator includes normal and fault; when it is normal, directly end this cruise ship refrigerator temperature control fault diagnosis operation.

[0072] Based on the real-time geographic temperature value of the cruise ship and the temperature regulation rate threshold matrix of the cruise ship's geographic temperature refrigerator, the temperature regulation rate threshold of the cruise ship's refrigerator is identified. The process to obtain the target temperature regulation rate threshold of the cruise ship's geographic temperature refrigerator includes the following steps:

[0073] Step 211: Establish the temperature regulation rate threshold matrix for cruise ship geographic temperature refrigerated cabinets. ,in Indicates the first The cruise ship geographical temperature type corresponds to the temperature regulation rate threshold for the cruise ship's refrigerated cabinets. This threshold represents the minimum temperature regulation rate required to ensure the refrigeration function of the cabinets under different cruise ship geographical temperature conditions. Setting this threshold is crucial because cruise ships are affected by geographical temperature differences during transit. If the refrigerated cabinet's temperature regulation response is inadequate, the temperature adjustment process will be time-consuming, leading to spoilage of refrigerated items. The unit is degrees Celsius per minute;

[0074] Step 212: Compare the real-time geographic temperature value of the cruise ship with the temperature regulation rate threshold matrix of the cruise ship's geographic temperature refrigerator. Mid-Cruise Ship Geographic Temperature Refrigerated Cabinet Temperature Adjustment Rate Threshold Perform geotemperature value matching on the cruise ship to find the corresponding temperature regulation rate threshold for the cruise ship's geotemperature refrigerator. The target cruise ship geographical temperature refrigerated cabinet temperature regulation rate threshold is constructed. The target cruise ship geographical temperature refrigerated cabinet temperature regulation rate threshold represents the optimal cruise ship refrigerated cabinet temperature regulation rate threshold that matches the current geographical environment temperature during the cruise ship's voyage. The unit of the target cruise ship geographical temperature refrigerated cabinet temperature regulation rate threshold is degrees Celsius per minute.

[0075] Based on the refrigerated display case temperature control rate value and the target cruise ship's geographical temperature refrigerated display case temperature control rate threshold, a fault status analysis of the cruise ship's refrigerated display case temperature control response is performed to obtain fault analysis data of the target cruise ship's refrigerated display case temperature control response. This data includes both normal and faulty states. When the status is normal, the current cruise ship refrigerated display case temperature control fault diagnosis operation is directly terminated, including the following steps:

[0076] Step 221: Compare the temperature regulation rate value of the refrigerated cabinet with the temperature regulation rate threshold of the refrigerated cabinet at the geographic temperature of the target cruise ship, and generate the temperature regulation response fault analysis data of the refrigerated cabinet of the target cruise ship based on the comparison results.

[0077] When the temperature regulation rate of the refrigerator is less than the temperature regulation rate threshold of the target cruise ship's geographical temperature, it means that the temperature regulation response rate of the refrigerator on the cruise ship is not up to standard due to the current geographical temperature during the cruise ship's voyage. This causes the internal temperature regulation process of the refrigerator to take a long time, resulting in the deterioration of refrigerated items. In this case, the output of the target cruise ship's refrigerator temperature regulation response fault analysis data is a fault.

[0078] When the temperature regulation rate of the refrigerator is not less than the target cruise ship's geographical temperature temperature refrigerator temperature regulation rate threshold, it means that the temperature regulation response rate of the cruise ship's refrigerator meets the standard under the current geographical temperature during the cruise ship's voyage. This ensures that the time taken for the internal temperature regulation process of the refrigerator fully meets the refrigeration requirements of the items. In this case, the output of the target cruise ship's refrigerator temperature regulation response fault analysis data is normal, and the current cruise ship refrigerator temperature control fault diagnosis operation is directly terminated.

[0079] Based on real-time geographic temperature values ​​of cruise ships, combined with numerical analysis and big data storage, the temperature regulation rate thresholds for cruise ship refrigerators are efficiently identified. This enables adaptive selection of temperature regulation rate thresholds based on cruise ship geographic temperature, improving the quality of fault diagnosis for cruise ship refrigerator temperature regulation responses. Furthermore, based on refrigerator temperature regulation rate values ​​and target cruise ship geographic temperature refrigerator temperature regulation rate thresholds, combined with numerical analysis, dynamic and efficient monitoring of cruise ship refrigerator temperature regulation response fault states is achieved. This enables reliable and accurate monitoring of cruise ship refrigerator temperature regulation response faults based on cruise ship geographic temperature, improving the safety of cruise ship refrigerator temperature regulation.

[0080] For further details, please refer to Figures 1-2 When a fault occurs, steps 1 to 2 are executed sequentially based on the maximum number of cycles for the cruise ship's refrigerated container temperature regulation operation to establish a database of temperature regulation rate changes under fault conditions, resulting in a fault database of cruise ship refrigerated container temperature regulation rate changes. The types of cruise ship refrigerated container temperature regulation response fault events are then differentiated to obtain categorized data. The occurrence probabilities of different cruise ship refrigerated container temperature regulation response fault event types are statistically processed to obtain probability data. Finally, a comprehensive diagnostic process is performed on the types of cruise ship refrigerated container temperature regulation response fault events to obtain the cruise ship refrigerated container temperature regulation response fault diagnosis results, including the following steps:

[0081] Step 31: When the target cruise ship refrigerator temperature regulation response fault analysis data indicates a fault, based on the maximum number of cycles of the cruise ship refrigerator temperature regulation operation, steps 1 to 2 are executed sequentially to establish a database of temperature regulation rate changes under the cruise ship refrigerator temperature regulation response fault state, resulting in a cruise ship refrigerator temperature regulation rate change fault database; based on the cruise ship refrigerator temperature regulation rate change fault database and the standard temperature regulation rate change interval set of cruise ship refrigerator temperature regulation response fault events, the cruise ship refrigerator temperature regulation response fault event type is distinguished, resulting in a cruise ship refrigerator temperature regulation response fault event classification data set;

[0082] Step 32: Based on the classification data set of cruise ship refrigerator temperature regulation response fault events, perform statistical processing on the occurrence probability of different types of cruise ship refrigerator temperature regulation response fault events to obtain a probability data set of cruise ship refrigerator temperature regulation response fault events; perform comprehensive diagnostic processing on the types of cruise ship refrigerator temperature regulation response fault events based on the probability data set of cruise ship refrigerator temperature regulation response fault events to obtain cruise ship refrigerator temperature regulation response fault diagnosis result information.

[0083] When the target cruise ship refrigerator temperature regulation response fault analysis data indicates a fault, steps 1 to 2 are executed sequentially based on the maximum number of cycles of the cruise ship refrigerator temperature regulation operation to establish a database of temperature regulation rate changes under the fault state, resulting in a cruise ship refrigerator temperature regulation rate change fault database. Based on the cruise ship refrigerator temperature regulation rate change fault database and the standard temperature regulation rate change interval set for cruise ship refrigerator temperature regulation response fault events, the cruise ship refrigerator temperature regulation response fault event types are differentiated, resulting in a cruise ship refrigerator temperature regulation response fault event classification data set, including the following steps:

[0084] Step 311: When the fault analysis data of the target cruise ship's refrigerated container temperature regulation response indicates a fault, based on the set maximum number of cycles for the cruise ship's refrigerated container temperature regulation operation. The process involves sequentially executing steps 1 and 2 to obtain fault analysis data for the temperature regulation response of the target cruise ship's refrigerated cabinets. Under the condition that the generated refrigerated cabinet temperature regulation rate value is a fault, the difference between the generated refrigerated cabinet temperature regulation rate value and the target cruise ship's geographical temperature refrigerated cabinet temperature regulation rate threshold, along with the absolute value of the difference, is used to construct a fault database for the change in the cruise ship's refrigerated cabinet temperature regulation rate. ,in Indicates the first The fault data on the change in temperature regulation rate of the cruise ship refrigerator is collected in steps 1 to 2 in the next cycle. The fault data on the change in temperature regulation rate of the cruise ship refrigerator reflects the difference between the actual temperature regulation response rate and the standard temperature regulation response rate of the cruise ship refrigerator when the temperature regulation response fault analysis data of the target cruise ship refrigerator is faulty. The unit of the fault data on the change in temperature regulation rate of the cruise ship refrigerator is degrees Celsius per minute.

[0085] Step 312: Establish a set of standard temperature regulation rate change intervals for cruise ship refrigerated display case temperature regulation response fault events. ,in This indicates the standard temperature regulation rate change range corresponding to the temperature regulation response fault event type of the cruise ship's refrigerated display case. and These represent the standard temperature regulation rate change ranges for temperature regulation response fault events in cruise ship refrigerated display cases. The standard temperature regulation rate change value for temperature regulation response failure events in cruise ship refrigerators (left and right sides) indicates that when the target cruise ship refrigerator's temperature regulation response failure analysis data is faulty, it is due to equipment failure in the refrigerator causing a large difference between the refrigerator's actual temperature regulation response rate and the standard temperature regulation response rate corresponding to the target cruise ship's geographical temperature refrigerator temperature regulation rate threshold. This indicates the standard temperature regulation rate change range corresponding to the temperature regulation response failure event type of the cruise ship refrigerated display case. and These represent the standard temperature regulation rate change ranges for temperature regulation response fault events in cruise ship refrigerated display cases. The standard temperature regulation rate change value is the endpoint of the temperature regulation response fault event for the cruise ship's refrigerated display case. The temperature regulation performance event indicates that when the target cruise ship's refrigerated display case's temperature regulation response fault analysis data shows a fault, it's due to fluctuations in the refrigeration performance of the display case, causing a small difference between the actual temperature regulation response rate and the standard temperature regulation response rate corresponding to the target cruise ship's geographical temperature refrigeration temperature regulation rate threshold. , , and The units are all degrees Celsius per minute;

[0086] Step 313: Compile the fault database of temperature regulation rate changes in cruise ship refrigerated containers. Fault data on temperature regulation rate changes in refrigerated containers on cruise ships According to the maximum number of cycles for adjusting the temperature of the cruise ship's refrigerated display cases. Set of standard temperature regulation rate change ranges for ordered and cruise ship refrigerated display case temperature regulation response fault events Internal cruise ship refrigerated display case temperature control response fault event standard temperature control rate change range to The standard temperature regulation rate change value of the left and right cruise ship refrigerated display cases was used to match the temperature regulation rate change value with the fault data related to the temperature regulation rate change of the cruise ship refrigerated display cases. The text information of the cruise ship refrigerator temperature regulation response failure event type corresponding to the standard temperature rate change range of the matching cruise ship refrigerator temperature regulation response failure event is generated into a cruise ship refrigerator temperature regulation response failure event classification dataset after data identification. ,in This indicates fault data related to the change in temperature control rate of the refrigerated display case on the cruise ship. The corresponding cruise ship refrigerator temperature control response fault event classification data includes either temperature control fault events or temperature control performance events.

[0087] Based on the classification dataset of cruise ship refrigerator temperature regulation response failure events, statistical processing of the occurrence probability of different failure event types is performed to obtain a probability dataset of cruise ship refrigerator temperature regulation response failure events. Based on this probability dataset, comprehensive diagnostic processing of the cruise ship refrigerator temperature regulation response failure event types is performed to obtain the cruise ship refrigerator temperature regulation response failure diagnosis results, including the following steps:

[0088] Step 321: Classify the cruise ship refrigerated display case temperature regulation response fault event data set according to temperature regulation fault event keywords and temperature regulation performance event keywords. Classification data of temperature regulation response fault events in refrigerated containers on cruise ships The occurrence frequency of temperature regulation response failure events in cruise ship refrigerated compartments is statistically analyzed, and a set of failure event counts for cruise ship refrigerated compartment temperature regulation response failure events is generated. ,in This indicates the maximum number of cycles required for adjusting the temperature of the cruise ship's refrigerated compartments. The cycle of steps 1 and 2 generates the number of cruise ship refrigerated display case temperature regulation response fault events corresponding to the temperature regulation fault event type. This indicates the maximum number of cycles required for adjusting the temperature of the cruise ship's refrigerated compartments. The cycle of steps 1 to 2 generates the number of cruise ship refrigerated cabinet temperature regulation response fault events corresponding to the temperature regulation performance event type.

[0089] Step 322: Collect the number of fault events in the temperature regulation response of the cruise ship's refrigerated display cases. Number of temperature control response failure events in refrigerated containers on cruise ships to Each is related to the maximum number of cycles of temperature adjustment operation in the cruise ship's refrigerated display case. Numerical quotient measurement was performed, and a dataset of probability events for temperature regulation response failures in cruise ship refrigerated containers was generated. ,in This indicates the maximum number of cycles required for adjusting the temperature of the cruise ship's refrigerated compartments. Steps 1 and 2 are executed repeatedly to generate probability data of cruise ship refrigerated cabinet temperature regulation response failure events corresponding to temperature regulation failure events. This indicates the maximum number of cycles required for adjusting the temperature of the cruise ship's refrigerated compartments. Steps 1 and 2 are executed repeatedly to generate probability data of cruise ship refrigerated cabinet temperature regulation response failure events corresponding to temperature regulation performance events.

[0090] Step 323: Set up the probability data of temperature regulation response failure events of the cruise ship's refrigerated display cases. Probability data of temperature regulation response failure events in refrigerated containers on cruise ships and Compare the probability values ​​of cruise ship refrigerated display case temperature regulation response failure events between different types of refrigerated display cases, and generate cruise ship refrigerated display case temperature regulation response failure diagnosis results based on the comparison results.

[0091] when Greater than When the target cruise ship refrigerator temperature regulation response fault analysis data is faulty, the cause of the cruise ship refrigerator temperature regulation response fault is a temperature regulation fault event, and the output cruise ship refrigerator temperature regulation response fault diagnosis result information is a temperature regulation fault event.

[0092] when equal When the target cruise ship refrigerator temperature regulation response fault analysis data is faulty, the cause of the cruise ship refrigerator temperature regulation response fault is the coexistence of temperature regulation fault event and temperature regulation performance event. The output cruise ship refrigerator temperature regulation response fault diagnosis result information is temperature regulation fault event and temperature regulation performance event.

[0093] when Less than When the target cruise ship refrigerator temperature regulation response fault analysis data is a fault, the cause of the cruise ship refrigerator temperature regulation response fault is a temperature regulation performance event, and the output cruise ship refrigerator temperature regulation response fault diagnosis result information is a temperature regulation performance event.

[0094] A scientific database of temperature regulation rate changes under cruise ship refrigerator temperature regulation response fault conditions is established based on the maximum number of temperature regulation operation cycles. This database enables the accurate collection of massive amounts of data on temperature regulation rate changes in cruise ship refrigerators, providing scientific decision support for refined analysis of cruise ship refrigerator temperature regulation response fault types and improving the quality of cruise ship refrigerator temperature regulation response fault diagnosis. The database of temperature regulation rate change faults is compared with the standard temperature regulation rate change ranges for cruise ship refrigerator temperature regulation response fault events to scientifically distinguish the types of cruise ship refrigerator temperature regulation response fault events. This enables accurate assessment of cruise ship refrigerator temperature regulation response fault event types based on the characteristics of temperature regulation rate change. Finally, a comprehensive and reliable diagnosis of cruise ship refrigerator temperature regulation response fault event types is performed based on the probability data of these events. This enables accurate identification of cruise ship refrigerator temperature regulation response fault types based on big data and probability statistics, improving the scientific nature of cruise ship refrigerator temperature control fault diagnosis and the effectiveness of cruise ship refrigerator temperature regulation.

[0095] Example 2:

[0096] Please see Figures 1-2 A smart diagnostic system for temperature control faults in cruise ship refrigerators is provided to implement a smart diagnostic method for temperature control faults in cruise ship refrigerators. The system includes a cruise ship refrigerator temperature regulation parameter processing module, a cruise ship refrigerator temperature regulation response fault diagnosis module, and a cruise ship refrigerator temperature regulation response fault classification module.

[0097] The cruise ship refrigerated display case temperature regulation parameter processing module includes a cruise ship geographical temperature acquisition unit, a refrigerated display case initial temperature acquisition unit, a refrigerated display case final temperature acquisition unit, a refrigerated display case temperature regulation duration acquisition unit, a refrigerated display case temperature difference calculation unit, and a refrigerated display case temperature regulation rate calculation unit.

[0098] The system includes: a cruise ship geographic temperature acquisition unit (collecting real-time geographic temperature values ​​via temperature sensors); a refrigerator initial temperature acquisition unit (collecting initial temperature values ​​for refrigerators via refrigerator control terminals); a refrigerator final temperature acquisition unit (collecting final temperature values ​​for refrigerators via refrigerator control terminals); a refrigerator temperature adjustment duration acquisition unit (collecting temperature adjustment duration data via refrigerator control terminals); a refrigerator temperature difference calculation unit (calculating the temperature difference during the refrigerator temperature adjustment process based on the initial and final temperatures to obtain the refrigerator temperature adjustment difference value); and a refrigerator temperature adjustment rate calculation unit (calculating the temperature adjustment rate during the refrigerator temperature adjustment process based on the temperature difference and the temperature adjustment duration data to obtain the refrigerator temperature adjustment rate value).

[0099] The cruise ship refrigerator temperature regulation response fault diagnosis module includes a cruise ship geographical temperature refrigerator temperature regulation rate threshold storage unit, a target cruise ship geographical temperature refrigerator temperature regulation rate threshold identification unit, and a cruise ship refrigerator temperature regulation response fault analysis unit.

[0100] The system includes: a cruise ship geographic temperature refrigerator temperature regulation rate threshold storage unit for storing cruise ship geographic temperature refrigerator temperature regulation rate thresholds; a target cruise ship geographic temperature refrigerator temperature regulation rate threshold identification unit for identifying the target cruise ship refrigerator temperature regulation rate threshold based on the real-time geographic temperature value of the cruise ship and the target cruise ship geographic temperature refrigerator temperature regulation rate threshold; and a cruise ship refrigerator temperature regulation response fault analysis unit for analyzing the temperature regulation response fault status of the refrigerator based on the refrigerator temperature regulation rate value and the target cruise ship geographic temperature refrigerator temperature regulation rate threshold, thus obtaining the target cruise ship refrigerator temperature regulation response fault analysis data.

[0101] The cruise ship refrigerator temperature regulation response fault classification module includes a cruise ship refrigerator temperature regulation rate change fault database establishment unit, a cruise ship refrigerator temperature regulation response fault event standard temperature regulation rate change range storage unit, a cruise ship refrigerator temperature regulation response fault event differentiation unit, a cruise ship refrigerator temperature regulation response fault event probability statistics unit, and a cruise ship refrigerator temperature regulation response fault type diagnosis unit.

[0102] The system comprises the following components: a cruise ship refrigerated display case temperature regulation rate change fault database establishment unit, which establishes a database of temperature regulation rate changes under cruise ship refrigerated display case temperature regulation response fault states based on the maximum number of temperature regulation operation cycles; a cruise ship refrigerated display case temperature regulation response fault event standard temperature regulation rate change interval storage unit, which stores the standard temperature regulation rate change intervals for cruise ship refrigerated display case temperature regulation response fault events; and a cruise ship refrigerated display case temperature regulation response fault event differentiation unit, which differentiates cruise ship refrigerated display case temperature regulation rate change events based on the cruise ship refrigerated display case temperature regulation rate change fault database and the standard temperature regulation rate change intervals for cruise ship refrigerated display case temperature regulation response fault events. The system categorizes and processes temperature regulation response fault events to obtain classification data. A probability statistics unit then performs probability analysis on the occurrence of each fault event type based on the classification data, yielding probability data. Finally, a fault diagnosis unit performs comprehensive diagnostic processing based on the probability data, providing the diagnostic results.

[0103] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A method for intelligent diagnosis of temperature control faults in refrigerated display cases for cruise ships, characterized in that, The method includes the following steps: Step 1: Collect real-time geographic temperature data of the cruise ship, initial temperature value of the refrigerator, final temperature value of the refrigerator, and duration of refrigerator temperature adjustment data; calculate and process the temperature adjustment difference of the refrigerator during the temperature adjustment process to obtain the temperature adjustment difference of the refrigerator. The temperature regulation rate of the cruise ship's refrigerated display case was calculated and processed to obtain the refrigerated display case temperature regulation rate value. Step 2: Based on the real-time geographic temperature of the cruise ship, identify the temperature regulation rate threshold of the cruise ship's refrigerated cabinet to obtain the target cruise ship geographic temperature refrigerated cabinet temperature regulation rate threshold. The temperature regulation response fault status of the cruise ship refrigerator is analyzed and processed to obtain the temperature regulation response fault analysis data of the target cruise ship refrigerator. When it is normal, the current cruise ship refrigerator temperature control fault diagnosis operation is directly terminated. Step 3: When a fault occurs, based on the maximum number of cycles of the cruise ship's refrigerated container temperature regulation operation, steps 1 to 2 are executed in an orderly loop to establish a database of temperature regulation rate changes under the fault state of the cruise ship's refrigerated container temperature regulation response, resulting in a fault database of temperature regulation rate changes in the cruise ship's refrigerated container; the types of temperature regulation response fault events in the cruise ship's refrigerated container are distinguished and processed to obtain classification data of temperature regulation response fault events in the cruise ship's refrigerated container. The probability of occurrence of different types of temperature regulation response failure events in cruise ship refrigerators was statistically processed to obtain probability data of temperature regulation response failure events in cruise ship refrigerators. A comprehensive diagnostic process was performed on the types of temperature regulation response fault events in the cruise ship's refrigerated cabinets to obtain the fault diagnosis results information for the temperature regulation response of the cruise ship's refrigerated cabinets.

2. The intelligent diagnostic method for temperature control faults in a cruise ship refrigerated display case according to claim 1, characterized in that: The system collects real-time geographic temperature data of the cruise ship, initial temperature value of the refrigerator, final temperature value of the refrigerator, and duration of refrigerator temperature adjustment. The system also calculates and processes the temperature adjustment difference of the refrigerator during the cruise ship's refrigerator temperature adjustment process to obtain the refrigerator temperature adjustment temperature difference value. The temperature regulation rate of the cruise ship's refrigerated display case was calculated and processed to obtain the refrigerated display case temperature regulation rate value, including the following steps: Step 11: Collect temperature data of the current geographical environment during the cruise ship's journey online using temperature sensors, and generate real-time geographical temperature values ​​for the cruise ship; The system uses the refrigerated container control terminal to collect the initial temperature data, final temperature data, and total duration data of the refrigerated container during the cruise ship's journey and the current geographical environment. It also generates the initial temperature value, final temperature value, and duration data of the refrigerated container. Step 12: Calculate the temperature adjustment difference during the cruise ship's refrigerated display case temperature adjustment process based on the initial temperature value and the final temperature value of the refrigerated display case temperature adjustment process to obtain the refrigerated display case temperature adjustment difference value; calculate the temperature adjustment rate during the cruise ship's refrigerated display case temperature adjustment process based on the refrigerated display case temperature adjustment difference value and the refrigerated display case temperature adjustment duration data to obtain the refrigerated display case temperature adjustment rate value.

3. The intelligent diagnostic method for temperature control faults in a cruise ship refrigerated display case according to claim 2, characterized in that: Based on the initial and final temperatures of the refrigerated display case, the temperature adjustment difference during the refrigerated display case temperature adjustment process is calculated to obtain the refrigerated display case temperature adjustment difference value. Based on the refrigerated display case temperature adjustment difference and the refrigerated display case temperature adjustment duration data, the temperature adjustment rate during the refrigerated display case temperature adjustment process is calculated to obtain the refrigerated display case temperature adjustment rate value, including the following steps: Step 121: Divide the initial temperature value of the refrigerator and the final temperature value of the refrigerator by taking the absolute value of the difference and calculate the temperature difference of the refrigerator. Step 122: Calculate the temperature difference between the refrigerator and the refrigerator temperature adjustment time by dividing the temperature difference by the temperature adjustment time, and then calculate the refrigerator temperature adjustment rate value.

4. The intelligent diagnostic method for temperature control faults in a cruise ship refrigerated display case according to claim 3, characterized in that: Based on the real-time geographic temperature of the cruise ship, the temperature regulation rate threshold of the cruise ship's refrigerated cabinets is identified to obtain the target cruise ship geographic temperature refrigerated cabinet temperature regulation rate threshold; the temperature regulation response fault status of the cruise ship's refrigerated cabinets is analyzed to obtain the target cruise ship refrigerated cabinet temperature regulation response fault analysis data. When it is normal, the current cruise ship refrigerated cabinet temperature control fault diagnosis operation is directly terminated, including the following steps: Step 21: Based on the real-time geographic temperature value of the cruise ship and the temperature adjustment rate threshold matrix of the cruise ship geographic temperature refrigerator, perform temperature adjustment rate threshold identification processing of the cruise ship refrigerator to obtain the target temperature adjustment rate threshold of the cruise ship geographic temperature refrigerator. Step 22: Based on the temperature regulation rate value of the refrigerator and the temperature regulation rate threshold of the target cruise ship's geographical temperature refrigerator, perform temperature regulation response fault status analysis and processing of the cruise ship refrigerator to obtain temperature regulation response fault analysis data of the target cruise ship refrigerator. The temperature regulation response fault analysis data of the target cruise ship refrigerator includes normal and fault. When it is normal, directly end the current cruise ship refrigerator temperature control fault diagnosis operation.

5. The intelligent diagnostic method for temperature control faults in a cruise ship refrigerated display case according to claim 4, characterized in that: Based on the real-time geographic temperature value of the cruise ship and the temperature regulation rate threshold matrix of the cruise ship's geographic temperature refrigerator, the temperature regulation rate threshold of the cruise ship's refrigerator is identified, and the target temperature regulation rate threshold of the cruise ship's geographic temperature refrigerator is obtained by the following steps: Step 211: Establish the temperature regulation rate threshold matrix for cruise ship geographic temperature refrigerated cabinets. The include ,in Indicates the first The temperature regulation rate threshold of the cruise ship's geographic temperature refrigerator corresponding to each type of cruise ship geographic temperature. Step 212: Compare the real-time geographic temperature value of the cruise ship with the... The above Perform geographic temperature value matching for the cruise ship, and search for the corresponding real-time geographic temperature value of the cruise ship. And construct the temperature regulation rate threshold of the target cruise ship's geographic temperature refrigerated cabinet.

6. The intelligent diagnostic method for temperature control faults in a cruise ship refrigerated display case according to claim 5, characterized in that: Based on the refrigerated display case temperature adjustment rate value and the target cruise ship geographical temperature refrigerated display case temperature adjustment rate threshold, a fault status analysis of the cruise ship refrigerated display case temperature regulation response is performed to obtain the target cruise ship refrigerated display case temperature regulation response fault analysis data. The target cruise ship refrigerated display case temperature regulation response fault analysis data includes normal and fault conditions. When it is normal, the current cruise ship refrigerated display case temperature control fault diagnosis operation is directly terminated, including the following steps: Step 221: Compare the temperature regulation rate value of the refrigerated cabinet with the temperature regulation rate threshold of the target cruise ship's geographical temperature refrigerated cabinet, and generate the temperature regulation response fault analysis data of the target cruise ship refrigerated cabinet based on the comparison result of the temperature regulation rate value of the cruise ship refrigerated cabinet. When the temperature regulation rate of the refrigerator is less than the temperature regulation rate threshold of the refrigerator at the target cruise ship's geographical temperature, the temperature regulation response fault analysis data of the refrigerator at the target cruise ship will be output as a fault. When the temperature adjustment rate of the refrigerator is not less than the temperature adjustment rate threshold of the target cruise ship's geographical temperature, the output of the target cruise ship's refrigerator temperature regulation response fault analysis data is normal, and the current cruise ship refrigerator temperature control fault diagnosis operation is directly terminated.

7. The intelligent diagnostic method for temperature control faults in a cruise ship refrigerated display case according to claim 6, characterized in that: When a fault occurs, steps 1 to 2 are executed sequentially based on the maximum number of cycles of the cruise ship's refrigerated container temperature regulation operation to establish a database of temperature regulation rate changes under the fault state of the cruise ship's refrigerated container temperature regulation response, resulting in a fault database of temperature regulation rate changes in the cruise ship's refrigerated container; the types of cruise ship's refrigerated container temperature regulation response fault events are distinguished and processed to obtain cruise ship's refrigerated container temperature regulation response fault event classification data. The probability of occurrence of different types of temperature regulation response failure events in cruise ship refrigerators was statistically processed to obtain probability data of temperature regulation response failure events in cruise ship refrigerators. The comprehensive diagnostic process for temperature regulation response fault events in cruise ship refrigerated display cases, to obtain diagnostic results for these faults, includes the following steps: Step 31: When the target cruise ship refrigerator temperature regulation response fault analysis data indicates a fault, Step 1 to Step 2 are executed sequentially based on the maximum number of cycles of the cruise ship refrigerator temperature regulation operation to establish a database of temperature regulation rate changes under the cruise ship refrigerator temperature regulation response fault state, resulting in a cruise ship refrigerator temperature regulation rate change fault database; Based on the cruise ship refrigerator temperature regulation rate change fault database and the standard temperature regulation rate change interval set of cruise ship refrigerator temperature regulation response fault events, the cruise ship refrigerator temperature regulation response fault event type is distinguished, resulting in a cruise ship refrigerator temperature regulation response fault event classification data set; Step 32: Based on the classification data set of cruise ship refrigerator temperature regulation response fault events, perform statistical processing on the occurrence probability of cruise ship refrigerator temperature regulation response fault event types to obtain a probability data set of cruise ship refrigerator temperature regulation response fault events; perform comprehensive diagnostic processing on the types of cruise ship refrigerator temperature regulation response fault events based on the probability data set of cruise ship refrigerator temperature regulation response fault events to obtain cruise ship refrigerator temperature regulation response fault diagnosis result information.

8. The intelligent diagnostic method for temperature control faults in a cruise ship refrigerated display case according to claim 7, characterized in that: When the target cruise ship refrigerator temperature regulation response fault analysis data indicates a fault, steps 1 to 2 are executed sequentially and cyclically based on the maximum number of cycles of the cruise ship refrigerator temperature regulation operation to establish a database of temperature regulation rate changes under the cruise ship refrigerator temperature regulation response fault state, resulting in a cruise ship refrigerator temperature regulation rate change fault database. Based on the cruise ship refrigerator temperature regulation rate change fault database and the standard temperature regulation rate change interval set of cruise ship refrigerator temperature regulation response fault events, cruise ship refrigerator temperature regulation response fault event type differentiation processing is performed to obtain a cruise ship refrigerator temperature regulation response fault event classification data set, including the following steps: Step 311: When the fault analysis data of the target cruise ship refrigerated cabinet temperature regulation response is a fault, based on the set maximum number of cycles for the cruise ship refrigerated cabinet temperature regulation operation. The process involves sequentially executing steps 1 and 2 to obtain fault analysis data for the temperature regulation response of the target cruise ship's refrigerated cabinet. Under the condition that the generated refrigerated cabinet temperature regulation rate value is a fault, the temperature regulation rate value of the generated refrigerated cabinet is compared with the temperature regulation rate threshold corresponding to the geographical temperature of the target cruise ship. The difference between the generated refrigerated cabinet temperature regulation rate value and the temperature regulation rate threshold is then summed, and the absolute value is taken. This process is used to construct a fault database for the change in the temperature regulation rate of the cruise ship's refrigerated cabinet. The include ;in Indicates the first The fault data on the change in temperature regulation rate of the cruise ship's refrigerated cabinets are collected in steps 1 to 2 in the next cycle. Step 312: Establish a set of standard temperature regulation rate change intervals for cruise ship refrigerated display case temperature regulation response fault events. The include and ;in This indicates the standard temperature regulation rate change range corresponding to the temperature regulation response fault event type of the cruise ship's refrigerated display case. and Each represents the The standard temperature regulation rate change value of the left and right cruise ship refrigerated display case temperature regulation response fault event; among which... This indicates the standard temperature regulation rate change range corresponding to the temperature regulation response failure event type of the cruise ship refrigerated display case. and Each represents the Standard temperature control rate change value for fault events in the temperature regulation response of the refrigerated display cases on cruise ships (left and right sides); Step 313, the above The above According to the maximum number of cycles for adjusting the temperature of the cruise ship's refrigerated display cases. Order and the said Internal description to The standard temperature regulation rate change value of the left and right cruise ship refrigerated display cases' temperature regulation response fault events is matched with the temperature regulation rate change value to search for values ​​that match the aforementioned... The text information of the cruise ship refrigerator temperature regulation response failure event type, corresponding to the standard temperature rate change range of the aforementioned cruise ship refrigerator temperature regulation response failure event, is matched and then used to generate a cruise ship refrigerator temperature regulation response failure event classification dataset after data identification. The include ;in Indicates the Corresponding data on the classification of fault events related to the temperature regulation response of the cruise ship's refrigerated display cases.

9. The intelligent diagnostic method for temperature control faults in a cruise ship refrigerated display case according to claim 8, characterized in that: Based on the cruise ship refrigerator temperature regulation response fault event classification data set, statistical processing of the occurrence probability of cruise ship refrigerator temperature regulation response fault event types is performed to obtain a cruise ship refrigerator temperature regulation response fault event probability data set; based on the cruise ship refrigerator temperature regulation response fault event probability data set, comprehensive diagnostic processing of cruise ship refrigerator temperature regulation response fault event types is performed to obtain cruise ship refrigerator temperature regulation response fault diagnosis result information, including the following steps: Step 321: Based on the keywords for temperature regulation failure events and temperature regulation performance events, the... The above The occurrence frequency of temperature regulation response failure events in cruise ship refrigerated compartments is statistically analyzed, and a set of failure event counts for cruise ship refrigerated compartment temperature regulation response failure events is generated. The include and ;in This indicates the maximum number of cycles required for adjusting the temperature of the cruise ship's refrigerated compartments. The cycle of steps 1 and 2 generates the number of cruise ship refrigerated display case temperature regulation response fault events corresponding to the temperature regulation fault event type. This indicates the maximum number of cycles required for adjusting the temperature of the cruise ship's refrigerated compartments. The cycle of steps 1 to 2 generates the number of cruise ship refrigerated cabinet temperature regulation response fault events corresponding to the temperature regulation performance event type. Step 322, the above The above to Each is compared with the maximum number of cycles of temperature adjustment operation of the cruise ship's refrigerated cabinet. Numerical quotient measurement processing was performed, and a dataset of probability events for temperature regulation response failures in cruise ship refrigerated containers was generated. The include and ;in This indicates the maximum number of cycles required for adjusting the temperature of the cruise ship's refrigerated compartments. Steps 1 and 2 are executed repeatedly to generate probability data of cruise ship refrigerated cabinet temperature regulation response failure events corresponding to temperature regulation failure events. This indicates the maximum number of cycles required for adjusting the temperature of the cruise ship's refrigerated compartments. Steps 1 and 2 are executed repeatedly to generate probability data of cruise ship refrigerated cabinet temperature regulation response failure events corresponding to temperature regulation performance events. Step 323, the above The above and Compare the probability values ​​of cruise ship refrigerated display case temperature regulation response failure events between different types of refrigerated display cases, and generate cruise ship refrigerated display case temperature regulation response failure diagnosis results based on the comparison results. when Greater than When this happens, the fault diagnosis result information of the temperature regulation response of the cruise ship's refrigerated cabinet will be output as a temperature regulation fault event; when equal When the target cruise ship refrigerator temperature regulation response fault analysis data is faulty, the cruise ship refrigerator temperature regulation response fault diagnosis result information is output as temperature regulation fault event and temperature regulation performance event. when Less than If the cause of the cruise ship's refrigerated cabinet temperature regulation response failure is a temperature regulation performance event, then the output of the cruise ship refrigerated cabinet temperature regulation response failure diagnosis result information is a temperature regulation performance event.

10. A smart diagnostic system for temperature control faults in a cruise ship refrigerator, used to implement the smart diagnostic method for temperature control faults in a cruise ship refrigerator as described in any one of claims 1-9, characterized in that: The system includes a cruise ship refrigerated display case temperature regulation parameter processing module, a cruise ship refrigerated display case temperature regulation response fault diagnosis module, and a cruise ship refrigerated display case temperature regulation response fault classification module.

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