Cold machine state monitoring device and its monitoring execution method and device

Abstract

The present application discloses a state monitoring device for a chiller, as well as a monitoring execution method and device thereof. The state monitoring device includes a constant-temperature heating module, a current detection module, a temperature sensor, and a data processing module. The constant-temperature heating module is arranged in the heat dissipation air duct of the chiller and maintains a constant temperature state; the current detection module is used to detect the working current of the constant-temperature heating module; the temperature sensor is used to detect the ambient temperature in the heat dissipation air duct; the data processing module is respectively connected to the current detection module and the temperature sensor in a signal connection manner, and is used to determine the working state of the chiller based on the ambient temperature and the working current, and send the working state to the data collection device of the monitoring party through a remote transmission method. From the specific content of this technical solution, it is isolated from the chiller itself, determines its working state through indirect measurement of the chiller, and does not require modification of the chiller itself, thereby not only realizing the monitoring of the working state of the chiller, but also being able to avoid adverse effects on the performance of the chiller.

Description

Technical Field

[0001] This application relates to the field of automation technology, and more specifically, to a status monitoring device for a cold machine, as well as a status monitoring method and device therefor. Background Art

[0002] For cold machines (such as those in vehicle-mounted warehouses and stores) that are already in use, in order to better implement after-sales service and maintenance, it is necessary to remotely monitor their operating status during normal use. However, cold machines that are already in use often do not have reserved data interfaces in this regard, resulting in the inability to meet the requirements of remote monitoring. If sensors are installed on the cold machines, it belongs to unauthorized modification, which may have an adverse impact on the performance of the cold machines. Summary of the Invention

[0003] In view of this, this application provides a status monitoring device for a cold machine, as well as a status monitoring method and device therefor, which are used to remotely monitor the operating status of the cold machine without affecting its performance.

[0004] In order to achieve the above purpose, the following solutions are proposed:

[0005] A status monitoring device for a cold machine includes a constant-temperature heating module, a current detection module, a temperature sensor, and a data processing module, where:

[0006] The constant-temperature heating module is arranged in the heat dissipation air duct of the cold machine and maintains a constant temperature based on the working power supply of the cold machine;

[0007] The current detection module is used to detect the working current of the constant-temperature heating module;

[0008] The temperature sensor is used to detect the ambient temperature in the heat dissipation air duct;

[0009] The data processing module is respectively signal-connected to the current detection module and the temperature sensor, and is used to determine the working status of the cold machine based on the ambient temperature and the working current, and send the working status to the data collection device of the monitoring party through a remote transmission method.

[0010] Optionally, the current detection module is a current sensor, where:

[0011] The current sensor is arranged on the power supply circuit of the constant-temperature heating module, used to detect the current of the power supply circuit to obtain the working current, and output the working current to the data processing module.

[0012] Optionally, the working status is a refrigeration status, a defrosting status, or a shutdown and heat preservation status.

[0013] A monitoring and execution method for a cooling machine, which is applied to the data processing module of the above-mentioned status monitoring device, is characterized in that the monitoring and execution method includes the steps of:

[0014] Obtain the working current and the ambient temperature;

[0015] Calculate the ideal current of the constant-temperature heating module according to the ambient temperature;

[0016] Determine the working state according to the working current and the ideal current;

[0017] Output the working state to the data collection device.

[0018] Optionally, the determining the working state according to the working current and the ideal current includes the steps of:

[0019] Compare the difference between the working current and the ideal current with a preset difference threshold;

[0020] If the difference is greater than the preset difference threshold, determine that the working state is the refrigeration state;

[0021] If the difference is less than the preset difference threshold, determine that the working state is the non-refrigeration state.

[0022] Optionally, the determining the working state according to the working current and the ideal current further includes the steps of:

[0023] When it is determined that the working state is the non-refrigeration state, compare the change rate of the ambient temperature with a preset change rate threshold;

[0024] If the change rate is greater than the preset change rate, determine that the cooling machine is in the defrosting state;

[0025] If the change rate is less than the preset change rate, determine that the cooling machine is in the shutdown and heat preservation state.

[0026] A monitoring and execution device for a cooling machine, which is applied to the data processing module of the above-mentioned status monitoring device, is characterized in that the monitoring and execution device includes:

[0027] A data acquisition module configured to acquire the working current and the ambient temperature;

[0028] A current calculation module configured to calculate the ideal current of the constant-temperature heating module according to the ambient temperature;

[0029] A state determination module configured to determine the working state according to the working current and the ideal current;

[0030] A data sending module, configured to output the working state to the data collection device.

[0031] Optionally, the state determination module includes:

[0032] A first comparison unit, configured to compare the difference between the working current and the ideal current with a preset difference threshold;

[0033] A first determination unit, configured to determine that the working state is a refrigeration state if the difference is greater than the preset difference threshold;

[0034] A second determination unit, configured to determine that the working state is a non-refrigeration state if the difference is less than the preset difference threshold.

[0035] Optionally, the state determination module further includes:

[0036] A second comparison unit, configured to compare the change rate of the ambient temperature with a preset change rate threshold when the second determination unit determines that the working state is a non-refrigeration state;

[0037] A third determination unit, configured to determine that the cooler is in a defrosting state if the change rate is greater than the preset change rate;

[0038] A fourth determination unit, configured to determine that the cooler is in a shutdown heat preservation state if the change rate is less than the preset change rate.

[0039] A monitoring execution device for a cooler, applied to the data processing module of the state monitoring device as described above, characterized by including at least one processor and a memory connected to the processor, wherein:

[0040] The memory is used to store computer programs or instructions;

[0041] The processor is used to execute the computer programs or instructions, so that the data processing module implements the monitoring execution method as described above.

[0042] As can be seen from the above technical solution, the present application discloses a cold machine status monitoring device and its monitoring execution method and device, including a constant temperature heating module, a current detection module, a temperature sensor, and a data processing module. The constant temperature heating module is arranged in the heat dissipation air duct of the cold machine and maintains a constant temperature based on the working power supply of the cold machine; the current detection module is used to detect the working current of the constant temperature heating module; the temperature sensor is used to detect the ambient temperature in the heat dissipation air duct; the data processing module is respectively connected to the current detection module and the temperature sensor in signal, and is used to determine the working status of the cold machine based on the ambient temperature and the working current, and send the working status to the data collection device of the monitoring party through a remote transmission method. From the specific content of this technical solution, it is isolated from the cold machine itself, determines its working status through indirect measurement of the cold machine, and does not require modification of the cold machine itself, thus not only realizing the monitoring of the working status of the cold machine, but also being able to avoid adverse effects on the performance of the cold machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0044] Figure 1 It is a block diagram of a cold machine status monitoring device according to an embodiment of the present application;

[0045] Figure 2 It is a flowchart of a monitoring execution method according to an embodiment of the present application;

[0046] Figure 3 It is a flowchart of a working status determination method according to an embodiment of the present application;

[0047] Figure 4 It is a flowchart of another working status determination method according to an embodiment of the present application;

[0048] Figure 5 It is a block diagram of a monitoring execution device according to an embodiment of the present application;

[0049] Figure 6 It is a block diagram of another monitoring execution device according to an embodiment of the present application;

[0050] Figure 7 It is a block diagram of yet another monitoring execution device according to an embodiment of the present application;

[0051] Figure 8 It is a block diagram of yet another monitoring execution device according to an embodiment of the present application. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0052] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without making creative efforts belong to the scope of protection of the present application.

[0053] Embodiment 1

[0054] Figure 1 It is a block diagram of a state monitoring device for a cold machine according to an embodiment of the present application.

[0055] As Figure 1 shown, the state monitoring device for a cold machine provided in this embodiment includes a constant temperature heating module 10, a current detection module 20, a temperature sensor 30, and a data processing module 40.

[0056] The constant temperature heating module is arranged in the heat dissipation air duct of the cold machine. It maintains a certain working temperature based on the electric energy provided by the working power supply of the cold machine, and this working temperature is higher than the ambient temperature. When the ambient temperature is 20°C, this working temperature can be set to 60°C so that there is a relatively constant working current when the constant temperature heating module maintains this constant temperature.

[0057] The constant temperature heating module is preferably a PTC constant temperature heating module, which is electrically connected to the working power supply of the cold machine through a power supply circuit 11. The current detection module is arranged on this power supply circuit, used to detect the working current on the power supply circuit, and output this working current to the data processing module.

[0058] The temperature sensor is also arranged in the heat dissipation air duct, used to detect the ambient temperature in the heat dissipation air duct, and output the obtained ambient temperature to the data processing module.

[0059] After obtaining the above-mentioned working current and ambient temperature, the data processing module processes the working current and ambient temperature based on a preset rule, so as to obtain the working state of the cold machine, and sends this working state to the monitoring party, such as the data collection device of the cold machine manufacturer, through remote transmission, thereby realizing the monitoring of the working state of the cold machine. The above-mentioned working state includes but is not limited to a refrigeration state, a defrosting state, and a shutdown heat preservation state.

[0060] As can be seen from the above technical solution, this embodiment provides a state monitoring device for a cold machine, including a constant-temperature heating module, a current detection module, a temperature sensor, and a data processing module. The constant-temperature heating module is arranged in the heat dissipation air duct of the cold machine and maintains a constant temperature based on the working power supply of the cold machine; the current detection module is used to detect the working current of the constant-temperature heating module; the temperature sensor is used to detect the ambient temperature in the heat dissipation air duct; the data processing module is respectively connected to the current detection module and the temperature sensor in a signal connection, and is used to determine the working state of the cold machine based on the ambient temperature and the working current, and send the working state to the data collection device of the monitoring party through a remote transmission method. Judging from the specific content of this technical solution, it is isolated from the cold machine itself, and determines its working state through indirect measurement of the cold machine, without the need to transform the cold machine itself, thus not only realizing the monitoring of the working state of the cold machine, but also being able to avoid adverse effects on the performance of the cold machine.

[0061] Embodiment 2

[0062] Figure 2 It is a flowchart of a monitoring execution method according to an embodiment of the present application.

[0063] As Figure 2 shown, this monitoring execution method is applied to the state monitoring device of the cold machine provided in the previous embodiment. Specifically, it is applied to the data processing module of this state monitoring device. This monitoring execution method specifically includes the following steps:

[0064] S1. Obtain the working current and the ambient temperature.

[0065] The working current here refers to the working current of the above-mentioned constant-temperature heating module, and the ambient temperature refers to the ambient temperature detected by the temperature monitoring module.

[0066] S2. Calculate the ideal current of the constant-temperature heating module according to the ambient temperature.

[0067] The ideal current here refers to the current of the constant-temperature heating module under normal heat dissipation at the ambient temperature, that is, under ideal conditions, the current required for the constant-temperature heating module to maintain a preset temperature without the influence of the heat dissipation of the cold machine.

[0068] S3. Determine the working state according to the working current and the ideal current.

[0069] Based on the above-mentioned working current and ideal current, by processing the two currents, the working state of the cold machine is obtained. The working state here includes but is not limited to the refrigeration state, the defrosting state, and the shutdown heat preservation state.

[0070] S4. Send the working state to the data collection device.

[0071] That is, the working status is sent to the data collection device of the above-mentioned chiller manufacturer through remote transmission. Moreover, when transmitting the working status, some or all of the parameters such as working current, ambient temperature, and ideal current can be sent to the data collection device together.

[0072] Through the above technical solution, it is possible to support the status monitoring device in the previous embodiment to determine the working status of the chiller by indirect measurement, thereby not only realizing the monitoring of the working status of the chiller but also avoiding adverse effects on the performance of the chiller.

[0073] In a specific implementation manner of this embodiment, the determination of the working status in step S3 includes the following specific steps, as Figure 3 shown:

[0074] S31. Compare the difference between the working current and the ideal current with a preset difference threshold.

[0075] The implementation is based on performing a difference operation on the working current and the ideal current to obtain the difference between the two, and then comparing this difference with the preset difference threshold, thereby obtaining two results, that is, the difference is greater than the difference threshold and less than the difference threshold.

[0076] S32. Determine that the working status of the chiller is the refrigeration state.

[0077] That is, when the difference is greater than the difference threshold, it is determined that the working status of the chiller is the refrigeration state.

[0078] S33. Determine that the working status of the chiller is the non - refrigeration state.

[0079] That is, when the difference is greater than the difference threshold, it is determined that the working status of the chiller is the refrigeration state. (There seems to be a repetition here. Assuming it should be different from the previous one)

[0080] That is, when the difference is less than the difference threshold, it is determined that the working status of the chiller is the non - refrigeration state.

[0081] In addition, in another specific implementation manner of this embodiment, the following steps are further included, as Figure 4 shown:

[0082] S34. Compare the change rate of the ambient temperature with a preset change rate threshold.

[0083] That is, in the case of determining that the working status of the chiller is the non - refrigeration state, calculate the change rate of the ambient temperature, and further compare this change rate with the preset change rate threshold, thereby obtaining two results, that is, the change rate is greater than the preset change rate threshold or less than the change rate threshold.

[0084] S35. Determine that the working status of the chiller is the defrosting state.

[0085] That is, when the change rate is greater than a preset change rate threshold, it is determined that the working state of the chiller is in the defrosting state.

[0086] S36. Determine that the working state of the chiller is in the shutdown heat preservation state.

[0087] That is, when the change rate is less than a preset change rate threshold, it is determined that the working state of the chiller is in the shutdown heat preservation state.

[0088] Embodiment III

[0089] Figure 5 It is a block diagram of a monitoring and execution device according to an embodiment of the present application.

[0090] As Figure 5 shown, the monitoring and execution device is applied to the state monitoring device of the chiller provided in Embodiment I. Specifically, it is applied to the data processing module of the state monitoring device. The monitoring and execution device specifically includes a data acquisition module 31, a current calculation module 32, a state determination module 33, and a data sending module 34.

[0091] The data acquisition module is used to acquire the working current and the ambient temperature.

[0092] The working current here refers to the working current of the above-mentioned constant temperature heating module, and the ambient temperature refers to the ambient temperature detected by the temperature monitoring module.

[0093] The current calculation module is used to calculate the ideal current of the constant temperature heating module according to the ambient temperature.

[0094] The ideal current here refers to the current of the constant temperature heating module under normal heat dissipation at the ambient temperature, that is, under ideal conditions, the current required for the constant temperature heating module to maintain a preset temperature without the influence of the heat dissipation of the chiller.

[0095] The state determination module is used to determine the working state according to the working current and the ideal current.

[0096] Based on the above-mentioned working current and ideal current, by processing the two currents, the working state of the chiller is obtained. The working state here includes but is not limited to the refrigeration state, the defrosting state, and the shutdown heat preservation state.

[0097] The data sending module is used to send the working state to the data collection device.

[0098] That is, the working state is sent to the data collection device of the above-mentioned chiller manufacturer through a remote transmission method. Moreover, when transmitting the working state, some or all of the parameters such as the working current, the ambient temperature, and the ideal current can be sent to the data collection device together.

[0099] Through the above technical solution, it is possible to support the state monitoring device in the previous embodiment to determine the working state of the cold machine through indirect measurement, thereby not only realizing the monitoring of the working state of the cold machine, but also avoiding adverse effects on the performance of the cold machine.

[0100] In a specific implementation manner of this embodiment, the state determination module specifically includes a first comparison unit 331, a first determination unit 332, and a second determination unit 333, as Figure 6 shown:

[0101] The first comparison unit is used to compare the difference between the working current and the ideal current with a preset difference threshold.

[0102] The implementation is based on performing a difference operation on the working current and the ideal current to obtain the difference between the two, and then comparing this difference with the preset difference threshold, thereby obtaining two results, that is, the difference is greater than the difference threshold and less than the difference threshold.

[0103] The first determination unit is used to determine that the working state is the refrigeration state.

[0104] That is, when the difference is greater than the difference threshold, it is determined that the working state of the cold machine is the refrigeration state.

[0105] The second determination unit is used to determine that the working state is the non-refrigeration state.

[0106] That is, when the difference is greater than the difference threshold, it is determined that the working state of the cold machine is the refrigeration state.

[0107] That is, when the difference is less than the difference threshold, it is determined that the working state of the cold machine is the non-refrigeration state.

[0108] In addition, in another specific implementation manner of this embodiment, the state determination module further includes a second comparison unit 334, a third determination unit 335, and a fourth determination unit 336, as Figure 7 shown:

[0109] The second comparison unit is used to compare the change rate of the ambient temperature with a preset change rate threshold.

[0110] That is, in the case of determining that the working state of the cold machine is the non-refrigeration state, calculate the change rate of the ambient temperature, and further compare this change rate with the preset change rate threshold, thereby obtaining two results, that is, the change rate is greater than the preset change rate threshold or less than the change rate threshold.

[0111] The third determination unit is used to determine that the working state of the cold machine is the defrosting state.

[0112] That is, when the change rate is greater than the preset change rate threshold, it is determined that the working state of the cold machine is the defrosting state.

[0113] The third determination unit is used to determine that the working state of the cold machine is the shutdown heat preservation state.

[0114] That is, when the change rate is less than the preset change rate threshold, it is determined that the working state of the cold machine is the shutdown heat preservation state.

[0115] Embodiment 4

[0116] Figure 8 It is a block diagram of another monitoring and execution device according to an embodiment of the present application.

[0117] As Figure 8 shown, the monitoring and execution device is applied to the state monitoring device of the cold machine provided in Embodiment 1. Specifically, it is applied to the data processing module of the state monitoring device. The monitoring and execution device 100 includes at least one processor 101 and a memory 102, and the two are connected through a data bus 103.

[0118] The memory is used to store computer programs or instructions, and the processor is used to execute the computer programs or instructions, so that the monitoring and execution device implements the monitoring and execution method provided in the embodiment. The monitoring and execution method specifically includes: obtaining the working current and the ambient temperature; calculating the ideal current of the constant temperature heating module according to the ambient temperature; determining the working state according to the working current and the ideal current; and outputting the working state to the data collection device. Through this method, it can support the state monitoring device of the present application to determine the working state of the cold machine by indirect measurement, thereby not only realizing the monitoring of the working state of the cold machine, but also avoiding adverse effects on the performance of the cold machine.

[0119] Each embodiment in this specification is described in a progressive manner. The key points of each embodiment are the differences from other embodiments. The same or similar parts among the embodiments can be referred to each other.

[0120] Those skilled in the art should understand that the embodiments of the present invention can be provided as methods, devices, or computer program products. Therefore, the embodiments of the present invention can take the form of completely hardware embodiments, completely software embodiments, or embodiments combining software and hardware aspects. Moreover, the embodiments of the present invention can take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk memories, CD-ROMs, optical memories, etc.) containing computer-usable program codes.

[0121] Embodiments of the present invention are described with reference to the flowcharts and / or block diagrams of methods, terminal devices (systems), and computer program products according to embodiments of the present invention. It should be understood that each flow and / or block in the flowchart and / or block diagram, and the combination of flows and / or blocks in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to the processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing terminal device to generate a machine, such that the instructions executed by the processor of the computer or other programmable data processing terminal device generate a means for implementing the functions specified in one flow Figure 1 one flow or multiple flows and / or blocks Figure 1 or a means for implementing the functions specified in multiple blocks.

[0122] These computer program instructions can also be stored in a computer-readable memory that can direct a computer or other programmable data processing terminal device to work in a specific manner, such that the instructions stored in the computer-readable memory generate a manufactured article including an instruction means that implements the functions specified in one flow Figure 1 one flow or multiple flows and / or blocks Figure 1 or a means for implementing the functions specified in multiple blocks.

[0123] These computer program instructions can also be loaded onto a computer or other programmable data processing terminal device, such that a series of operating steps are executed on the computer or other programmable terminal device to generate a computer-implemented process, and thus the instructions executed on the computer or other programmable terminal device provide steps for implementing the functions specified in one flow Figure 1 one flow or multiple flows and / or blocks Figure 1 or a means for implementing the functions specified in multiple blocks.

[0124] Although the preferred embodiments of the embodiments of the present invention have been described, those skilled in the art can make additional changes and modifications to these embodiments once they learn the basic creative concepts. Therefore, the appended claims are intended to be construed to include the preferred embodiments and all changes and modifications that fall within the scope of the embodiments of the present invention.

[0125] Finally, it should also be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or terminal device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or terminal device. Without further limitation, an element defined by the statement "comprising an..." does not exclude the presence of additional identical elements in the process, method, article or terminal device comprising the said element.

[0126] The technical solutions provided by the present invention have been introduced in detail above. Specific examples are used in this article to elaborate on the principles and implementation manners of the present invention. The description of the above embodiments is only used to help understand the method and its core idea of the present invention; at the same time, for those of ordinary skill in the art, according to the idea of the present invention, there will be changes in the specific implementation manners and application scopes. In summary, the content of this specification should not be construed as a limitation to the present invention.

Claims

1. A state monitoring device for a cold machine, characterized in that, It includes a constant-temperature heating module, a current detection module, a temperature sensor, and a data processing module, where: The constant-temperature heating module is arranged in the heat dissipation air duct of the cold machine and maintains a constant temperature based on the working power supply of the cold machine; The current detection module is used to detect the working current of the constant-temperature heating module; The temperature sensor is used to detect the ambient temperature in the heat dissipation air duct; The data processing module is respectively connected to the current detection module and the temperature sensor in a signal manner, and is used to determine the working state of the cold machine based on the ambient temperature and the working current, and send the working state to the data collection device of the monitoring party through a remote transmission method.

2. The state monitoring device according to claim 1, wherein The current detection module is a current sensor, where: The current sensor is arranged on the power supply circuit of the constant-temperature heating module, used to detect the current of the power supply circuit to obtain the working current, and output the working current to the data processing module.

3. The state monitoring device according to claim 1, characterized in that, The working state is a refrigeration state, a defrosting state, or a shutdown heat preservation state.

4. A monitoring execution method for a chiller, applied to the data processing module of the state monitoring device according to any one of claims 1 to 3, characterized in that, The monitoring execution method includes the steps of: Obtain the working current and the ambient temperature; Calculate the ideal current of the constant-temperature heating module according to the ambient temperature; Determine the working state according to the working current and the ideal current; Output the working state to the data collection device.

5. The monitoring execution method according to claim 4, characterized in that, The step of determining the working state according to the working current and the ideal current includes the steps of: Compare the difference between the working current and the ideal current with a preset difference threshold; If the difference is greater than the preset difference threshold, it is determined that the working state is a refrigeration state; If the difference is less than the preset difference threshold, it is determined that the working state is a non-refrigeration state.

6. The monitoring execution method according to claim 5, wherein The step of determining the working state according to the working current and the ideal current further includes the steps of: When it is determined that the working state is a non-refrigeration state, compare the change rate of the ambient temperature with a preset change rate threshold; If the change rate is greater than the preset change rate threshold, it is determined that the cold machine is in a defrosting state; If the change rate is less than the preset change rate threshold, it is determined that the cold machine is in a shutdown heat preservation state.

7. A monitoring and execution device for a cooling machine, which is applied to the data processing module of the state monitoring device according to any one of claims 1 to 3, and is characterized in that, The monitoring execution device includes: A data acquisition module configured to acquire the working current and the ambient temperature; A current calculation module configured to calculate the ideal current of the constant-temperature heating module according to the ambient temperature; A state determination module configured to determine the working state according to the working current and the ideal current; A data sending module configured to output the working state to the data collection device.

8. The monitoring and execution device according to claim 7, characterized in that The state determination module includes: A first comparison unit for comparing the difference between the working current and the ideal current with a preset difference threshold; A first determination unit for determining that the working state is a refrigeration state if the difference is greater than the preset difference threshold; A second determination unit for determining that the working state is a non-refrigeration state if the difference is less than the preset difference threshold.

9. The monitoring and execution device according to claim 8, characterized in that, The state determination module further includes: A second comparison unit, configured to compare a change rate of the ambient temperature with a preset change rate threshold when the second determination unit determines that the working state is a non-cooling state; A third determination unit, configured to determine that the chiller is in a defrosting state if the change rate is greater than the preset change rate threshold; A fourth determination unit, configured to determine that the chiller is in a shutdown heat preservation state if the change rate is less than the preset change rate threshold.

10. A monitoring and execution device for a cold machine, applied to the data processing module of the state monitoring device according to any one of claims 1 to 3, characterized in that, Comprising at least one processor and a memory connected to the processor, wherein: The memory is configured to store computer programs or instructions; The processor is configured to execute the computer programs or instructions, so that the data processing module implements the monitoring execution method according to any one of claims 4 to 6.

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