Hotel air conditioning unit fault control and repair method and device based on Internet of Things

Abstract

The embodiment of the invention discloses a hotel air conditioning unit fault control repairing method and device based on the Internet of Things, in the embodiment, environment data and operation data of an air conditioning unit are collected, real-time transmission is carried out through an Internet of Things platform, and indoor and outdoor temperature, humidity, refrigerant pressure and other key performance indexes are monitored in real time; overall mastering of the equipment operation state is enhanced, whether the air conditioning unit breaks down or not is judged by analyzing and calculating the refrigerant circulation efficiency condition through monitoring data, maintenance personnel can rapidly recognize potential faults and take corresponding measures, the influence of the equipment faults on hotel operation is effectively reduced through an active fault detection mechanism, and the service life of the hotel is prolonged. The operation efficiency and the customer satisfaction are improved, the generated fault type and the generated fault repair mode provide clear fault positioning and repair guidance for maintenance personnel, the maintenance efficiency of the air conditioning unit is improved, and the maintenance time is shortened.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioner failure repair, and in particular to a hotel air conditioner unit failure control and repair method and device based on the Internet of Things. Background Art

[0002] At present, with the development of Internet of Things technology, more and more hotel management systems are beginning to use intelligent and automated solutions to improve service quality and operational efficiency. As one of the most important equipment in the hotel environment, the performance and reliability of the air-conditioning system directly affect the guests' stay experience. Today's hotel air-conditioning units generally adopt centralized control and monitoring systems, but there are still some shortcomings in fault detection and maintenance.

[0003] Existing air-conditioning units usually require manual regular inspection and maintenance of the equipment, relying on the experience and judgment of technicians. However, the skill levels of different technicians vary, which may lead to incomplete troubleshooting and inefficient maintenance. Summary of the invention

[0004] In view of the above defects, an embodiment of the present invention discloses a method and device for controlling and repairing a hotel air-conditioning unit fault based on the Internet of Things, which realizes fault detection by automatically collecting data on the air-conditioning unit.

[0005] The first aspect of the embodiment of the present invention discloses a hotel air conditioning unit fault control and repair method based on the Internet of Things, comprising:

[0006] In response to the air-conditioning unit fault monitoring instruction, the current ambient temperature data and the current ambient humidity data are collected in real time, and the air-conditioning unit is started to obtain the current operating data of the air-conditioning unit, wherein the operating data includes refrigerant pressure data, fan speed, current consumption data and voltage data;

[0007] Calculating the current refrigerant circulation efficiency based on the current ambient temperature data, the current ambient humidity data and the current operation data of the air-conditioning unit;

[0008] Obtaining the standard refrigerant cycle efficiency of the air-conditioning unit, comparing the current refrigerant cycle efficiency with the standard refrigerant cycle efficiency, and determining whether the difference between the current refrigerant cycle efficiency and the standard refrigerant cycle efficiency exceeds a set threshold range;

[0009] When the difference exceeds the set threshold range, a new wind speed command is input to adjust the fan speed, and the current operation data of the air-conditioning unit is recollected, wherein the current operation data includes the current refrigerant pressure data, the current fan speed, the current current consumption data and the current voltage data;

[0010] Calculating the current refrigerant cycle efficiency based on the current ambient temperature data, the current ambient humidity data and the current operation data, comparing the current refrigerant cycle efficiency with the standard refrigerant cycle efficiency, and generating a fault check instruction;

[0011] The fault type is determined based on the fault checking instruction, and a fault repair method is generated.

[0012] As an optional implementation, in the first aspect of the embodiment of the present invention, the current refrigerant cycle efficiency is calculated based on the current ambient temperature data, the current ambient humidity data and the current operation data of the air-conditioning unit, including:

[0013] Calculate the cooling capacity based on the current ambient temperature data, the current ambient humidity data, the refrigerant pressure data and the fan speed;

[0014] The current refrigerant circulation efficiency is calculated according to the refrigeration capacity, the current consumption data and the voltage data.

[0015] As an optional implementation, in the first aspect of the embodiment of the present invention, the refrigeration capacity is calculated according to the current ambient temperature data, the current ambient humidity data, the refrigerant pressure data and the fan speed, including:

[0016] Calculate the air volume flow rate based on the fan speed, and calculate the air density based on the current ambient temperature data and the current ambient humidity data;

[0017] The outlet temperature of the air conditioning unit is collected, and the cooling capacity is calculated according to the air volume flow, air density, current ambient humidity and a preset calculation correction coefficient.

[0018] As an optional implementation, in the first aspect of the embodiment of the present invention, the refrigeration capacity is calculated according to the current ambient temperature data, the current ambient humidity data, the refrigerant pressure data and the fan speed, including:

[0019] Calculate the air volume flow rate based on the fan speed, and calculate the air density based on the current ambient temperature data and the current ambient humidity data;

[0020] The outlet temperature of the air conditioning unit is collected, and the cooling capacity is calculated according to the air volume flow, air density, current ambient humidity and a preset calculation correction coefficient.

[0021] As an optional implementation manner, in a first aspect of the embodiment of the present invention, determining the fault type based on the fault checking instruction includes:

[0022] When the difference between the current refrigerant cycle efficiency and the standard refrigerant cycle efficiency exceeds the set threshold range, the fault type is defined as the first fault type;

[0023] When the difference between the current refrigerant cycle efficiency and the standard refrigerant cycle efficiency is within the set threshold range, the air-conditioning compressor input power is collected, and the ratio of the refrigeration capacity to the air-conditioning compressor input power is calculated as the compressor operating efficiency. When the compressor operating efficiency is lower than the compressor operating efficiency benchmark, the fault type is defined as the second fault type.

[0024] As an optional implementation manner, in the first aspect of the embodiment of the present invention, it also includes:

[0025] Calculating the ambient relative humidity according to the previous ambient humidity data, and calculating the dew point temperature according to the ambient relative humidity and ambient temperature data;

[0026] Whether the dew point temperature is normal is determined based on a comparison between the dew point temperature and a standard dew point temperature comparison value.

[0027] As an optional implementation manner, in the first aspect of the embodiment of the present invention, it also includes:

[0028] After the air conditioning unit is repaired based on the fault repair method, receiving the user experience data input by the user, and determining whether to start the fault detection process again according to the user experience data;

[0029] When the fault detection process is started again, the detection category and detection time are set, the detection category excludes the detection category corresponding to the fault type repaired last time, and when the detection time is reached, the fault detection process is executed.

[0030] A second aspect of an embodiment of the present invention discloses a hotel air conditioning unit fault control and repair device based on the Internet of Things, comprising:

[0031] Fault monitoring response module: used to respond to the fault monitoring instruction of the air-conditioning unit, collect the current ambient temperature data and the current ambient humidity data in real time, start the air-conditioning unit, and obtain the current operating data of the air-conditioning unit, the operating data including the refrigerant pressure data, the fan speed, the current consumption data and the voltage data;

[0032] Refrigerant efficiency calculation module: used to calculate the current refrigerant cycle efficiency based on the current ambient temperature data, the current ambient humidity data and the current operation data of the air-conditioning unit;

[0033] Threshold comparison module: used to obtain the standard refrigerant circulation efficiency of the air-conditioning unit, compare the current refrigerant circulation efficiency with the standard refrigerant circulation efficiency, and determine whether the difference between the current refrigerant circulation efficiency and the standard refrigerant circulation efficiency exceeds the set threshold range;

[0034] Refrigerant monitoring module: used for inputting a new wind speed instruction to adjust the fan speed when the difference exceeds the set threshold range, and recollecting the current operation data of the air-conditioning unit, wherein the current operation data includes the current refrigerant pressure data, the current fan speed, the current current consumption data and the current voltage data;

[0035] Fault checking module: used for calculating the current refrigerant circulation efficiency based on the current ambient temperature data, the current ambient humidity data and the current operation data, comparing the current refrigerant circulation efficiency with the standard refrigerant circulation efficiency, and generating a fault checking instruction;

[0036] Fault type determination module: used to determine the fault type based on the fault inspection instruction and generate a fault repair method.

[0037] As an optional implementation, in the second aspect of the embodiment of the present invention, the current refrigerant cycle efficiency is calculated based on the current ambient temperature data, the current ambient humidity data and the current operation data of the air-conditioning unit, including:

[0038] Calculate the cooling capacity based on the current ambient temperature data, the current ambient humidity data, the refrigerant pressure data and the fan speed;

[0039] The current refrigerant circulation efficiency is calculated according to the refrigeration capacity, the current consumption data and the voltage data.

[0040] As an optional implementation, in the second aspect of the embodiment of the present invention, the refrigeration capacity is calculated according to the current ambient temperature data, the current ambient humidity data, the refrigerant pressure data and the fan speed, including:

[0041] Calculate the air volume flow rate based on the fan speed, and calculate the air density based on the current ambient temperature data and the current ambient humidity data;

[0042] The outlet temperature of the air conditioning unit is collected, and the cooling capacity is calculated according to the air volume flow, air density, current ambient humidity and a preset calculation correction coefficient.

[0043] As an optional implementation, in the second aspect of the embodiment of the present invention, the refrigeration capacity is calculated according to the current ambient temperature data, the current ambient humidity data, the refrigerant pressure data and the fan speed, including:

[0044] Calculate the air volume flow rate based on the fan speed, and calculate the air density based on the current ambient temperature data and the current ambient humidity data;

[0045] The outlet temperature of the air conditioning unit is collected, and the cooling capacity is calculated according to the air volume flow, air density, current ambient humidity and a preset calculation correction coefficient.

[0046] As an optional implementation manner, in a second aspect of the embodiment of the present invention, determining the fault type based on the fault checking instruction includes:

[0047] When the difference between the current refrigerant cycle efficiency and the standard refrigerant cycle efficiency exceeds the set threshold range, the fault type is defined as the first fault type;

[0048] When the difference between the current refrigerant cycle efficiency and the standard refrigerant cycle efficiency is within the set threshold range, the air-conditioning compressor input power is collected, and the ratio of the refrigeration capacity to the air-conditioning compressor input power is calculated as the compressor operating efficiency. When the compressor operating efficiency is lower than the compressor operating efficiency benchmark, the fault type is defined as the second fault type.

[0049] As an optional implementation manner, in the second aspect of the embodiment of the present invention, it also includes:

[0050] Calculating the ambient relative humidity according to the previous ambient humidity data, and calculating the dew point temperature according to the ambient relative humidity and ambient temperature data;

[0051] Whether the dew point temperature is normal is determined based on a comparison between the dew point temperature and a standard dew point temperature comparison value.

[0052] As an optional implementation manner, in the second aspect of the embodiment of the present invention, it also includes:

[0053] After the air conditioning unit is repaired based on the fault repair method, receiving the user experience data input by the user, and determining whether to start the fault detection process again according to the user experience data;

[0054] When the fault detection process is started again, the detection category and detection time are set, the detection category excludes the detection category corresponding to the fault type repaired last time, and when the detection time is reached, the fault detection process is executed.

[0055] The third aspect of an embodiment of the present invention discloses an electronic device, comprising: a memory storing executable program code; a processor coupled to the memory; the processor calls the executable program code stored in the memory to execute the hotel air conditioning unit fault control and repair method based on the Internet of Things disclosed in the first aspect of the embodiment of the present invention.

[0056] A fourth aspect of an embodiment of the present invention discloses a computer-readable storage medium storing a computer program, wherein the computer program enables a computer to execute the hotel air-conditioning unit fault control and repair method based on the Internet of Things disclosed in the first aspect of an embodiment of the present invention.

[0057] Compared with the prior art, the embodiments of the present invention have the following beneficial effects:

[0058] In the embodiment of the present invention, environmental data and operating data of the air-conditioning unit are collected and transmitted in real time through the Internet of Things platform, and key performance indicators such as indoor and outdoor temperature, humidity, and refrigerant pressure are monitored in real time, thereby strengthening the overall grasp of the equipment operation status. The refrigerant circulation efficiency is calculated by analyzing the monitoring data, and then it is determined whether the air-conditioning unit has a fault problem, so that maintenance personnel can quickly identify potential faults and take corresponding measures. The active fault detection mechanism effectively reduces the impact of equipment failures on hotel operations, improves operating efficiency and customer satisfaction, and the generated fault types and fault repair methods provide maintenance personnel with clear fault location and repair guidelines, thereby improving the maintenance efficiency of the air-conditioning unit and shortening the maintenance time. BRIEF DESCRIPTION OF THE DRAWINGS

[0059] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0060] Figure 1 It is a flow chart of a method for controlling and repairing a hotel air-conditioning unit fault based on the Internet of Things disclosed in an embodiment of the present invention;

[0061] Figure 2 It is a structural schematic diagram of a regulating valve disclosed in an embodiment of the present invention;

[0062] Figure 3 is another structural schematic diagram of the regulating valve disclosed in the embodiment of the present invention;

[0063] Figure 4 It is a structural schematic diagram of a hotel air conditioning unit fault control and repair device based on the Internet of Things provided by an embodiment of the present invention;

[0064] Figure 5 It is a structural schematic diagram of an electronic device provided by an embodiment of the present invention.

[0065] In the figure, 1, shell; 11, upper shell; 12, lower shell; 2, valve plug; 3, shaft gear; 4, transmission belt; 5, telescopic spring; 6, fixing plate; 7, pressure sensor; 8, single chip control circuit board; 9, driving motor; 10, refrigeration pipeline. DETAILED DESCRIPTION

[0066] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0067] It should be noted that the terms "first", "second", "third", "fourth", etc. in the specification and claims of the present invention are used to distinguish different objects rather than to describe a specific order. The terms "including" and "having" in the embodiments of the present invention and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device including a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0068] The embodiment of the present invention discloses a method, device, electronic device and storage medium for controlling and repairing hotel air-conditioning units based on the Internet of Things. In the embodiment, environmental data and operating data of the air-conditioning units are collected and transmitted in real time through the Internet of Things platform, and key performance indicators such as indoor and outdoor temperature, humidity, and refrigerant pressure are monitored in real time, thereby strengthening the overall grasp of the equipment operation status. The refrigerant circulation efficiency is calculated by analyzing the monitoring data, and then it is determined whether the air-conditioning unit has a fault problem, so that maintenance personnel can quickly identify potential faults and take corresponding measures. The active fault detection mechanism effectively reduces the impact of equipment failures on hotel operations, improves operating efficiency and customer satisfaction, and the generated fault types and fault repair methods provide maintenance personnel with clear fault location and repair guidance, thereby improving the maintenance efficiency of the air-conditioning unit and shortening the repair time.

[0069] Embodiment 1

[0070] See also Figure 1 , Figure 1 It is a flow chart of a hotel air conditioning unit fault control and repair method based on the Internet of Things disclosed in an embodiment of the present invention. Among them, the execution subject of the method described in the embodiment of the present invention is an execution subject composed of software and / or hardware, and the execution subject can receive relevant information by wired or / and wireless means, and can send certain instructions. Of course, it can also have certain processing functions and storage functions. The execution subject can control multiple devices, such as a remote physical server or cloud server and related software, or it can be a local host or server and related software that performs related operations on a device placed somewhere. In some scenarios, multiple storage devices can also be controlled, and the storage devices can be placed in the same place or different places as the devices. For example Figure 1 As shown, the hotel air conditioning unit fault control and repair method based on the Internet of Things includes the following steps:

[0071] 101. In response to an air-conditioning unit fault monitoring instruction, current ambient temperature data and current ambient humidity data are collected in real time, and the air-conditioning unit is started to obtain current operating data of the air-conditioning unit, wherein the operating data includes refrigerant pressure data, fan speed, current consumption data and voltage data.

[0072] In this step, when the air conditioning unit fault monitoring command is received, the system responds immediately and uses the IoT sensor to collect the temperature and humidity data of the current environment in real time. At the same time, the air conditioning unit is started and its operating data is obtained, including key parameters such as refrigerant pressure, fan speed, current consumption and voltage.

[0073] 102. Calculate the current refrigerant circulation efficiency based on the current ambient temperature data, the current ambient humidity data, and the current operation data of the air-conditioning unit.

[0074] The collected ambient temperature, humidity and unit operation data are used as input to calculate the current refrigerant cycle efficiency based on the preset algorithm.

[0075] Specifically, the refrigeration capacity is calculated according to the current ambient temperature data, the current ambient humidity data, the refrigerant pressure data and the fan speed; and the current refrigerant circulation efficiency is calculated according to the refrigeration capacity, the current consumption data and the voltage data.

[0076] The cooling capacity is usually related to factors such as ambient temperature, ambient humidity, refrigerant pressure, and fan speed. These data are used as input to calculate the current cooling capacity. The current consumption data and voltage data of the air-conditioning unit are obtained based on the calculated cooling capacity. Furthermore, the air volume flow rate is calculated based on the fan speed, and the air density is calculated based on the current ambient temperature data and the current ambient humidity data; the outlet temperature of the air-conditioning unit is collected, and the cooling capacity is calculated based on the air volume flow rate, air density, current ambient humidity, and a preset calculation correction coefficient.

[0077] Get the current fan speed from the air conditioning unit's fan sensor, usually expressed in revolutions per minute or RPM. The fan flow rate (volume flow rate) is usually proportional to the fan speed. The air density can be calculated using the ideal gas law or a more accurate state equation. Get the current outlet temperature from the air conditioning unit's temperature sensor.

[0078] The cooling capacity can be calculated by combining the formula Qr = Vair × (T1-T2) × ρair × (1+W) × correction factor. Qr is the cooling capacity, Vair is the air volume flow rate, the unit is m 3 / h (cubic meters per hour) or L / s (liters per second), which is related to the fan speed and air density. T1 is the ambient temperature, T2 is the outlet temperature of the air conditioning unit, both in ℃, ρair is the air density, which is related to temperature, pressure and humidity. W is the air humidity. The correction factor is used to consider system efficiency, heat loss and other factors not taken into account. This factor is usually determined by experimental measurement or system simulation. Among them, W can also be the humidity change, which is calculated by collecting at least two air moisture contents.

[0079] Based on the refrigeration capacity, the current refrigerant circulation efficiency is calculated in combination with the current consumption data and the voltage data. Specifically, the compressor power consumption data is calculated based on the current consumption data and the voltage data; the ratio between the refrigeration capacity and the compressor power consumption data is calculated as the current refrigerant circulation efficiency.

[0080] The power consumption of the compressor can be calculated by multiplying the current consumption data by the voltage data, ignoring the influence of the power factor. The refrigerant cycle efficiency is equal to the ratio between the refrigeration capacity and the power consumption of the compressor.

[0081] 103. Obtain the standard refrigerant circulation efficiency of the air-conditioning unit, compare the current refrigerant circulation efficiency with the standard refrigerant circulation efficiency, and determine whether the difference between the current refrigerant circulation efficiency and the standard refrigerant circulation efficiency exceeds a set threshold range.

[0082] The standard refrigerant circulation efficiency of the air-conditioning unit is obtained from the database, the current refrigerant circulation efficiency is compared with the standard value, the difference is calculated, and it is determined whether the difference exceeds the set threshold range.

[0083] 104. When the difference exceeds the set threshold range, a new wind speed command is input to adjust the fan speed, and the current operation data of the air-conditioning unit is recollected, wherein the current operation data includes the current refrigerant pressure data, the current fan speed, the current consumption data and the current voltage data.

[0084] When the difference exceeds the threshold range, the system automatically inputs a new wind speed instruction and adjusts the fan speed. After the adjustment, the current operation data of the air-conditioning unit is recollected.

[0085] 105. Calculate the current refrigerant circulation efficiency based on the current ambient temperature data, the current ambient humidity data and the current operation data, compare the current refrigerant circulation efficiency with the standard refrigerant circulation efficiency, and generate a fault check instruction.

[0086] Based on the new operating data, the refrigerant circulation efficiency is calculated and compared with the standard value. If a problem still exists, a fault check instruction is generated.

[0087] 106. Determine a fault type based on the fault checking instruction, and generate a fault repair method.

[0088] Based on the fault inspection instructions, the fault is further analyzed and corresponding fault repair methods or suggestions are generated according to the fault type.

[0089] In this step, when the difference between the current refrigerant circulation efficiency and the standard refrigerant circulation efficiency exceeds the set threshold range, the fault type is defined as the first fault type; when the difference between the current refrigerant circulation efficiency and the standard refrigerant circulation efficiency is within the set threshold range, the air-conditioning compressor input power is collected, and the ratio of the refrigeration capacity to the air-conditioning compressor input power is calculated as the compressor operating efficiency, and when the compressor operating efficiency is lower than the compressor operating efficiency benchmark, the fault type is defined as the second fault type.

[0090] Get or set a standard refrigerant cycle efficiency, calculate the difference between the current refrigerant cycle efficiency and the standard refrigerant cycle efficiency, the threshold range defines the acceptable refrigerant cycle efficiency deviation, when the difference exceeds the threshold range, it is defined as the first fault type, usually corresponding to refrigerant leakage, compressor failure. When the difference is within the threshold range, continue to collect the compressor input power, calculate the ratio between the cooling capacity and the compressor input power, that is, the compressor operating efficiency. Get or set a compressor operating efficiency benchmark, when the calculated compressor operating efficiency is lower than the benchmark value, the fault type is defined as the second fault type, indicating that there may be a problem with the compressor.

[0091] The refrigerant circulation efficiency refers to the energy conversion efficiency of the refrigerant in the air conditioning unit during the circulation process, which reflects the overall performance of the air conditioning system. As an important component in the air conditioning system, the regulating valve is used to adjust the flow and pressure of the refrigerant to ensure that the system can operate efficiently under different working conditions. The refrigerant circulation efficiency is closely related to the working state of the regulating valve. Figure 2 and Figure 3As shown, it includes a shell 1 and a refrigeration pipeline 10, the refrigeration pipeline 10 is connected to one side of the shell 1, and a valve plug 2, a shaft gear 3, a transmission toothed belt 4, a telescopic spring 5 and a fixed plate 6 are installed in the shell 1. The shaft gear 3 is meshed with one end of the transmission toothed belt 4, and the other end of the transmission gear contacts one end of the telescopic spring 5, and the other end of the telescopic spring 5 abuts against the fixed plate 6. A valve port is opened on the shell 1, one end of the valve plug 2 is embedded in the inner hole of the shaft gear 3, and the other end of the valve plug 2 extends to the corresponding position of the valve port, and the valve port is connected to the refrigeration pipeline 10. A pressure sensor 7, a single-chip control circuit board 8, and a drive motor 9 are also provided in the shell 1. The pressure sensor 7 and the drive motor 9 are both connected to the single-chip control circuit board 8, and one end of the drive motor 9 is connected to the shaft gear 3. The pressure sensor 7 is installed on the fixed plate 6 to collect the pressure signal applied to the fixed plate 6 by the telescopic spring 5, and transmit the pressure signal to the single-chip control circuit board 8, so that the single-chip control circuit board 8 adjusts the rotation angle of the shaft gear 3 through the drive motor 9. In this embodiment, the refrigeration efficiency of the regulating valve is monitored for faults to ensure accurate operation of the regulating valve. When the refrigeration efficiency, that is, the refrigerant circulation efficiency has a problem, the refrigeration flow rate can be adjusted through the regulating valve.

[0092] The embodiment also includes calculating the relative humidity of the environment according to the previous environmental humidity data, and calculating the dew point temperature according to the relative humidity of the environment and the ambient temperature data; and determining whether the dew point temperature is normal based on the comparison value between the dew point temperature and the standard dew point temperature. The humidity data of the current environment is obtained using a humidity sensor or other measuring device, and the temperature data of the current environment is obtained using a temperature sensor. The dew point temperature is calculated by a dew point temperature calculation formula or a table lookup method. The dew point temperature is the temperature when the air is cooled to a saturated state, at which time the water vapor in the air condenses into dew drops. A standard dew point temperature is set according to specific industry standards, equipment specifications or historical data. If the dew point temperature exceeds the normal range, measures may need to be taken, such as adjusting environmental conditions, checking equipment status, or taking other corrective measures.

[0093] Furthermore, the embodiment also includes receiving usage experience data input by the user after the air-conditioning unit is repaired based on the fault repair method, and determining whether to start the fault detection process again based on the usage experience data; when the fault detection process is started again, setting the detection category and detection time, the detection category excludes the detection category corresponding to the fault type repaired last time, and when the detection time is reached, executing the fault detection process.

[0094] The air conditioning unit is repaired according to the previously determined fault type and the corresponding repair method. After the repair is completed, the user's experience data on the air conditioning unit is received through user feedback, online surveys, automatic monitoring systems, etc., including the user's evaluation of the unit's performance, noise, energy efficiency, comfort, etc. The user can be a maintenance personnel. The collected usage experience data is analyzed to evaluate the user's satisfaction with the repair results and whether there are potential problems with the unit. According to the analysis results, if the user experience data indicates that the unit performance is poor or there are other problems, it is decided to start the fault detection process again. If it is decided to start the fault detection process again, the detection category is set first. This time the detection should exclude the detection category corresponding to the fault type repaired last time to avoid repeated detection. The embodiment sets the detection time. This can be performed immediately or at a certain point in the future to give the user enough time to experience the performance of the unit and report any potential problems.

[0095] Embodiment 2

[0096] See also Figure 4 , Figure 4 Schematic diagram of the structure of the hotel air conditioning unit fault control and repair device based on the Internet of Things disclosed in the embodiment of the present invention. Figure 4As shown, the hotel air-conditioning unit fault control and repair device based on the Internet of Things may include: a fault monitoring response module 401, a refrigerant efficiency calculation module 402, a threshold comparison module 403, a refrigerant monitoring module 404, a fault inspection module 405 and a fault type determination module 306, wherein the fault monitoring response module 401: is used to respond to the air-conditioning unit fault monitoring instruction, collect the current ambient temperature data and the current ambient humidity data in real time, and start the air-conditioning unit to obtain the current air-conditioning unit operation data, the operation data including the refrigerant pressure data, the fan speed, the current consumption data and the voltage data; the refrigerant efficiency calculation module 402: is used to calculate the current refrigerant circulation efficiency based on the current ambient temperature data, the current ambient humidity data and the current air-conditioning unit operation data; the threshold comparison module 403: is used to obtain the standard refrigerant circulation efficiency of the air-conditioning unit rate, compare the current refrigerant circulation efficiency with the standard refrigerant circulation efficiency, and determine whether the difference between the current refrigerant circulation efficiency and the standard refrigerant circulation efficiency exceeds the set threshold range; refrigerant monitoring module 404: when the difference exceeds the set threshold range, input a new wind speed instruction to adjust the fan speed, and re-collect the current operation data of the air-conditioning unit, the current operation data including the current refrigerant pressure data, the current fan speed, the current current consumption data and the current voltage data; fault inspection module 405: based on the current ambient temperature data, the current ambient humidity data and the current operation data, calculate the current refrigerant circulation efficiency, compare the current refrigerant circulation efficiency with the standard refrigerant circulation efficiency, and generate a fault inspection instruction; fault type determination module 406: based on the fault inspection instruction to determine the fault type, and generate a fault repair method.

[0097] In the refrigerant efficiency calculation module 402, the current refrigerant circulation efficiency is calculated based on the current ambient temperature data, the current ambient humidity data and the current operation data of the air-conditioning unit, including: calculating the refrigeration capacity according to the current ambient temperature data, the current ambient humidity data, the refrigerant pressure data and the fan speed; calculating the current refrigerant circulation efficiency according to the refrigeration capacity, the current consumption data and the voltage data. Specifically, the air volume flow is calculated based on the fan speed, and the air density is calculated based on the current ambient temperature data and the current ambient humidity data; the outlet temperature of the air-conditioning unit is collected, and the refrigeration capacity is calculated according to the air volume flow, the air density, the current ambient humidity and the preset calculation correction coefficient. The compressor power consumption data is calculated according to the current consumption data and the voltage data; the ratio between the refrigeration capacity and the compressor power consumption data is calculated as the current refrigerant circulation efficiency.

[0098] In the fault type determination module 406, when the difference between the current refrigerant cycle efficiency and the standard refrigerant cycle efficiency exceeds the set threshold range, the fault type is defined as the first fault type; when the difference between the current refrigerant cycle efficiency and the standard refrigerant cycle efficiency is within the set threshold range, the air-conditioning compressor input power is collected, and the ratio of the refrigeration capacity to the air-conditioning compressor input power is calculated as the compressor operating efficiency, and when the compressor operating efficiency is lower than the compressor operating efficiency benchmark, the fault type is defined as the second fault type.

[0099] The embodiment also includes a dew point temperature analysis module, which is used to calculate the ambient relative humidity based on the previous ambient humidity data, and calculate the dew point temperature based on the ambient relative humidity and ambient temperature data; and determine whether the dew point temperature is normal based on the comparison value between the dew point temperature and the standard dew point temperature.

[0100] The embodiment also includes a re-fault monitoring module, which is used to receive usage experience data input by the user after the air-conditioning unit is repaired based on the fault repair method, and determine whether to start a re-fault detection process based on the usage experience data; when the re-fault detection process is started, the detection category and detection time are set, and the detection category excludes the detection category corresponding to the fault type repaired last time, and when the detection time is reached, the fault detection process is executed.

[0101] Embodiment 3

[0102] See also Figure 5 , Figure 5 Schematic diagram of the structure of an electronic device disclosed in an embodiment of the present invention. The electronic device may be a computer, a server, etc. Of course, in certain circumstances, it may also be a smart device such as a mobile phone, a tablet computer, a monitoring terminal, and an image acquisition device with processing functions. Figure 5 As shown, the electronic device may include:

[0103] A memory 501 storing executable program codes;

[0104] a processor 502 coupled to the memory 501;

[0105] The processor 502 calls the executable program code stored in the memory 501 to execute some or all of the steps in the hotel air conditioning unit fault control and repair method based on the Internet of Things in the first embodiment.

[0106] An embodiment of the present invention discloses a computer-readable storage medium storing a computer program, wherein the computer program enables a computer to execute part or all of the steps in the method for controlling and repairing a hotel air-conditioning unit fault based on the Internet of Things in Embodiment 1.

[0107] The embodiment of the present invention further discloses a computer program product, wherein when the computer program product is run on a computer, the computer executes part or all of the steps in the hotel air conditioning unit fault control and repair method based on the Internet of Things in the first embodiment.

[0108] An embodiment of the present invention further discloses an application publishing platform, wherein the application publishing platform is used to publish a computer program product, wherein when the computer program product runs on a computer, the computer executes part or all of the steps in the hotel air conditioning unit fault control and repair method based on the Internet of Things in Example 1.

[0109] In various embodiments of the present invention, it should be understood that the size of the serial numbers of the processes does not necessarily mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present invention.

[0110] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, i.e., they may be located in one place or distributed over multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the present embodiment.

[0111] In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The integrated unit may be implemented in the form of hardware or in the form of software functional units.

[0112] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-accessible memory. Based on this understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art, or all or part of the technical solution, can be embodied in the form of a software product, which is stored in a memory and includes several requests for a computer device (which can be a personal computer, a server or a network device, etc., specifically a processor in a computer device) to perform some or all of the steps of the method described in each embodiment of the present invention.

[0113] In the embodiments provided by the present invention, it should be understood that "B corresponding to A" means that B is associated with A, and B can be determined according to A. However, it should also be understood that determining B according to A does not mean determining B only according to A, and B can also be determined according to A and / or other information.

[0114] A person of ordinary skill in the art can understand that some or all of the steps in the various methods of the embodiments can be completed by instructing related hardware through a program, and the program can be stored in a computer-readable storage medium, and the storage medium includes a read-only memory (ROM), a random access memory (RAM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), a one-time programmable read-only memory (OTPROM), an electronically erasable rewritable read-only memory (EEPROM), a compact disc (CD-ROM) or other optical disc storage, magnetic disk storage, magnetic tape storage, or any other computer-readable medium that can be used to carry or store data.

[0115] The above is a detailed introduction to the hotel air conditioning unit fault control and repair method, device, electronic device and storage medium based on the Internet of Things disclosed in the embodiment of the present invention. Specific examples are used in this article to illustrate the principle and implementation mode of the present invention. The description of the above embodiments is only used to help understand the method of the present invention and its core idea; at the same time, for general technical personnel in this field, according to the idea of ​​the present invention, there will be changes in the specific implementation mode and application scope. In summary, the content of this specification should not be understood as a limitation on the present invention.

Claims

1. A hotel air conditioning unit fault control and repair method based on the Internet of Things, characterized in that: include: In response to the air-conditioning unit fault monitoring instruction, the current ambient temperature data and the current ambient humidity data are collected in real time, and the air-conditioning unit is started to obtain the current operating data of the air-conditioning unit, wherein the operating data includes refrigerant pressure data, fan speed, current consumption data and voltage data; Calculating the current refrigerant circulation efficiency based on the current ambient temperature data, the current ambient humidity data and the current operation data of the air-conditioning unit; Obtaining the standard refrigerant cycle efficiency of the air-conditioning unit, comparing the current refrigerant cycle efficiency with the standard refrigerant cycle efficiency, and determining whether the difference between the current refrigerant cycle efficiency and the standard refrigerant cycle efficiency exceeds a set threshold range; When the difference exceeds the set threshold range, a new wind speed command is input to adjust the fan speed, and the current operation data of the air-conditioning unit is recollected, wherein the current operation data includes the current refrigerant pressure data, the current fan speed, the current current consumption data and the current voltage data; Calculating the current refrigerant cycle efficiency based on the current ambient temperature data, the current ambient humidity data and the current operation data, comparing the current refrigerant cycle efficiency with the standard refrigerant cycle efficiency, and generating a fault check instruction; The fault type is determined based on the fault checking instruction, and a fault repair method is generated.

2. The hotel air conditioning unit fault control and repair method according to claim 1, characterized in that: Calculating the current refrigerant circulation efficiency based on the current ambient temperature data, the current ambient humidity data, and the current operation data of the air-conditioning unit includes: Calculate the cooling capacity based on the current ambient temperature data, the current ambient humidity data, the refrigerant pressure data and the fan speed; The current refrigerant circulation efficiency is calculated according to the refrigeration capacity, the current consumption data and the voltage data.

3. The hotel air conditioning unit fault control and repair method according to claim 2, characterized in that: Calculate the cooling capacity based on the current ambient temperature data, current ambient humidity data, refrigerant pressure data and fan speed, including: Calculate the air volume flow rate based on the fan speed, and calculate the air density based on the current ambient temperature data and the current ambient humidity data; The outlet temperature of the air conditioning unit is collected, and the cooling capacity is calculated according to the air volume flow, air density, current ambient humidity and a preset calculation correction coefficient.

4. The hotel air conditioning unit fault control and repair method according to claim 3, characterized in that: The current refrigerant circulation efficiency is calculated based on the refrigeration capacity, current consumption data and voltage data, including: Calculate compressor power consumption data based on current consumption data and voltage data; The ratio between the calculated refrigeration capacity and the compressor power consumption data is the current refrigerant cycle efficiency.

5. The hotel air conditioning unit fault control and repair method according to claim 3, characterized in that: Determining the fault type based on the fault checking instruction includes: When the difference between the current refrigerant cycle efficiency and the standard refrigerant cycle efficiency exceeds the set threshold range, the fault type is defined as the first fault type; When the difference between the current refrigerant cycle efficiency and the standard refrigerant cycle efficiency is within the set threshold range, the air-conditioning compressor input power is collected, and the ratio of the refrigeration capacity to the air-conditioning compressor input power is calculated as the compressor operating efficiency. When the compressor operating efficiency is lower than the compressor operating efficiency benchmark, the fault type is defined as the second fault type.

6. The hotel air conditioning unit fault control and repair method according to claim 1, characterized in that: Also includes: Calculating the ambient relative humidity according to the previous ambient humidity data, and calculating the dew point temperature according to the ambient relative humidity and ambient temperature data; Whether the dew point temperature is normal is determined based on a comparison between the dew point temperature and a standard dew point temperature comparison value.

7. The hotel air conditioning unit fault control and repair method according to claim 1, characterized in that: Also includes: After the air conditioning unit is repaired based on the fault repair method, receiving the user experience data input by the user, and determining whether to start the fault detection process again according to the user experience data; When the fault detection process is started again, the detection category and detection time are set, the detection category excludes the detection category corresponding to the fault type repaired last time, and when the detection time is reached, the fault detection process is executed.

8. A hotel air conditioning unit fault control and repair device based on the Internet of Things, characterized in that: include: Fault monitoring response module: used to respond to the fault monitoring instruction of the air-conditioning unit, collect the current ambient temperature data and the current ambient humidity data in real time, start the air-conditioning unit, and obtain the current operating data of the air-conditioning unit, the operating data including the refrigerant pressure data, the fan speed, the current consumption data and the voltage data; Refrigerant efficiency calculation module: used to calculate the current refrigerant cycle efficiency based on the current ambient temperature data, the current ambient humidity data and the current operation data of the air-conditioning unit; Threshold comparison module: used to obtain the standard refrigerant circulation efficiency of the air-conditioning unit, compare the current refrigerant circulation efficiency with the standard refrigerant circulation efficiency, and determine whether the difference between the current refrigerant circulation efficiency and the standard refrigerant circulation efficiency exceeds the set threshold range; Refrigerant monitoring module: used for inputting a new wind speed instruction to adjust the fan speed when the difference exceeds the set threshold range, and recollecting the current operation data of the air-conditioning unit, wherein the current operation data includes the current refrigerant pressure data, the current fan speed, the current current consumption data and the current voltage data; Fault checking module: used for calculating the current refrigerant circulation efficiency based on the current ambient temperature data, the current ambient humidity data and the current operation data, comparing the current refrigerant circulation efficiency with the standard refrigerant circulation efficiency, and generating a fault checking instruction; Fault type determination module: used to determine the fault type based on the fault inspection instruction and generate a fault repair method.

9. An electronic device, characterized in that: include: A memory storing executable program code; a processor coupled to the memory; The processor calls the executable program code stored in the memory to execute the hotel air conditioning unit fault control and repair method based on the Internet of Things as described in any one of claims 1 to 7.

10. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores a computer program, wherein the computer program enables a computer to execute the hotel air conditioning unit fault control and repair method based on the Internet of Things as described in any one of claims 1 to 7.

Images