A precision air conditioning control method, device, equipment and storage medium

Abstract

The present application relates to a precision air conditioning control method, device, equipment and storage medium, which includes: obtaining the number of unit starts and stops and the operating time, if the number of unit starts and stops reaches a first set number, determining whether the operating time of the unit is less than the first set time; if less than, determining whether the outdoor temperature is less than the first set temperature and whether the system exhaust high pressure pressure is less than the first set pressure; if the outdoor temperature is less than the first set temperature and / or the system exhaust high pressure pressure is less than the first set pressure, switching the temperature and humidity control mode. After the unit is started and operated, the temperature and humidity control mode is selected according to the number of shutdowns, the unit operating time and environmental factors, and the temperature and humidity control mode of the unit is automatically controlled to a suitable state, ensuring that the overall unit can quickly judge within the first set time of each temperature and humidity control mode execution, and finally realizing that the unit can automatically start and operate in the mode that best suits the current outdoor temperature, effectively ensuring that the indoor temperature is controlled.

Description

Technical Field

[0001] The present application relates to the technical field of precision air conditioning control, and in particular to a precision air conditioning control method, device, equipment and storage medium. Background Art

[0002] With the rapid development of big data, the current data center has become an important part of the enterprise production system and an important tool for enterprises to improve their competitiveness and operational efficiency. There are clear requirements for temperature and humidity in the data center computer room. According to the requirements of GB50174-2017 "Design Specifications for Electronic Information Computer Rooms", the room air conditioner requires a temperature range of 18-27℃ and a humidity range of 40%-60%.

[0003] Since the computer room air conditioner is required to be able to cool all year round and run 24 hours a day, and my country is vast, the coldest temperature in the northern region is around -45℃. The computer room air conditioner with standard configuration will fail to start when used below -15℃. The reason is that when it is shut down, due to the low outdoor temperature, the pressure in the condenser is small, and the refrigerant will migrate to the condenser. When it is started, there will be a continuous low pressure in the condenser, so that the refrigerant cannot return to the room, which will cause the air conditioner to fail to start normally. Moreover, if the number of such starts is too large, the compressor may fail due to lack of oil.

[0004] In the actual engineering application of precision air conditioning in data centers, in order to improve the efficiency of air supply or return air and reduce energy waste, it usually includes two methods: supply air temperature and humidity target control and return air temperature and humidity target control. These two methods can be used at different ambient temperatures based on different execution conditions. Therefore, different control modes can also be used to enable the air conditioning unit to start normally and operate stably at different ambient temperatures.

[0005] However, in actual applications, operators are still required to select the control mode of the air-conditioning unit according to environmental conditions. This process will increase labor costs to a certain extent. At the same time, human control will inevitably further increase the overall operating risk. Summary of the invention

[0006] The embodiment of the present application provides a precision air conditioning control method to solve the above-mentioned technical problems.

[0007] In a first aspect, the present application provides a precision air conditioning control method.

[0008] A precision air conditioning control method comprises the following steps:

[0009] Obtain the number of starts and stops and the running time of the unit. If the number of starts and stops of the unit reaches a first set number, determine whether the running time of the unit is less than the first set time;

[0010] If it is less than, determine whether the outdoor temperature is less than the first set temperature and whether the system exhaust high pressure pressure is less than the first set pressure;

[0011] If the outdoor temperature is lower than the first set temperature and / or the system exhaust high pressure pressure is lower than the first set pressure, the temperature and humidity control mode is switched.

[0012] In some embodiments, after switching the temperature and humidity control mode, the method includes:

[0013] Reset the unit running time and the accumulated start and stop times, and continue to determine whether the temperature and humidity control mode needs to be switched based on the unit start and stop times and running time.

[0014] In some embodiments, the step of determining whether the running time of the unit is less than the first set time further includes:

[0015] If it is not less than the first set time, determining whether the running time of the unit when the number of starts and stops reaches the second set number is less than the second set time, wherein the second set time is greater than the first set time;

[0016] If it is less than the second set time, a fault signal is output externally.

[0017] In some embodiments, after determining whether the outdoor temperature is less than the first set temperature and whether the system exhaust high pressure pressure is less than the first set pressure, the method further includes:

[0018] If the outdoor temperature is not less than the first set temperature and the system exhaust high pressure pressure is not less than the first set pressure, a fault signal is output externally.

[0019] In some embodiments, if the outdoor temperature is lower than the first set temperature and / or the system exhaust high pressure pressure is lower than the first set pressure, the control unit switches from the supply air temperature and humidity control mode to the return air temperature and humidity control mode.

[0020] In some embodiments, after the control unit switches from the supply air temperature and humidity control mode to the return air temperature and humidity control mode, the control unit further includes:

[0021] Continuously determine whether the outdoor temperature is greater than a second set temperature;

[0022] If the outdoor temperature is greater than a second set temperature, the control unit switches from the return air temperature and humidity control mode to the supply air temperature and humidity control mode, wherein the second set temperature is greater than the first set temperature.

[0023] In some embodiments, after continuously determining whether the outdoor temperature is greater than the second set temperature, the following steps are further included:

[0024] If the outdoor temperature is greater than a third set temperature and lasts for a third set time, the control unit switches from the return air temperature and humidity control mode to the supply air temperature and humidity control mode, wherein the third set temperature is greater than the first set temperature and less than the second set temperature.

[0025] In a second aspect, the present application provides a precision air conditioning control device.

[0026] A precision air conditioning control device, comprising:

[0027] An acquisition module is used to obtain the unit's operating time, start and stop times, outdoor temperature, and system exhaust high pressure of the unit;

[0028] A judgment control module, which is used to determine whether the running time of the unit is less than the first set time when the number of starts and stops of the unit reaches the first set number;

[0029] If it is less than, determine whether the outdoor temperature is less than the first set temperature and whether the system exhaust high pressure pressure is less than the first set pressure;

[0030] If the outdoor temperature is lower than the first set temperature and / or the system exhaust high pressure pressure is lower than the first set pressure, the temperature and humidity control mode is switched.

[0031] In a third aspect, the present application provides a precision air conditioning control device.

[0032] A precision air conditioning control device comprises: a memory, a processor and a precision air conditioning control program stored in the memory and executable on the processor, wherein the precision air conditioning control program is configured to implement the steps of the precision air conditioning control method as described above.

[0033] In a fourth aspect, the present application provides a storage medium.

[0034] A storage medium, characterized in that it non-temporarily stores computer-readable instructions, and when the computer-readable instructions are executed by a computer, the precision air conditioning control method as described above can be implemented.

[0035] The beneficial effects of the technical solution provided by this application include:

[0036] The embodiments of the present application provide a precision air conditioning control method, device, equipment and storage medium. After the unit is started and operated, when the unit is shut down for multiple times without losing power, it can be determined whether the current control mode of the unit can be smoothly executed in the current external environment according to the number of shutdowns, the running time of the unit, and the outdoor temperature or the system exhaust high-pressure pressure. When the number of starts and stops reaches the first set number and the running time is less than the first set time, and at least one of the outdoor temperature and the system exhaust high-pressure pressure is less than the first set temperature or the first set pressure, it can be determined that the current temperature and humidity control mode cannot smoothly execute the operation of the unit, and then the control unit is automatically switched to the current temperature and humidity control mode, and the temperature and humidity control mode of the unit is automatically controlled to a suitable state, thereby ensuring that the overall unit can quickly judge within the first set time of each temperature and humidity control mode execution, and finally the unit can automatically start and operate in the mode that is most suitable for the current outdoor temperature, effectively ensuring that the indoor temperature is controlled. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0038] Figure 1 A schematic diagram of the hardware structure of the precision air conditioning control equipment provided;

[0039] Figure 2 This is a schematic diagram of the overall process of the first embodiment of the present application;

[0040] Figure 3 This is a partial flow chart of the second embodiment of the present application;

[0041] Figure 4 This is a partial flow chart of the third embodiment of the present application;

[0042] Figure 5 This is a partial flow chart of the fourth embodiment of the present application;

[0043] Figure 6 This is a partial flow chart of the fifth embodiment of the present application;

[0044] Figure 7 This is a schematic diagram of the functional modules of an embodiment of a precision air conditioning control device of the present application. DETAILED DESCRIPTION

[0045] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0046] The embodiments of the present application provide a precision air conditioning control method, device, equipment and storage medium, which can solve the problems of cost and risk in manual selection of air conditioning control modes in related technologies.

[0047] Reference Figure 1 , Figure 1 The figure is a schematic diagram of the device structure of the hardware operating environment involved in the embodiment of the present invention.

[0048] like Figure 1 As shown, the device may include: a processor 1001, such as a CPU, a communication bus 1002, a user interface 1003, a network interface 1004, and a memory 1005. Among them, the communication bus 1002 is used to realize the connection and communication between these components. The user interface 1003 may include a display screen (Display), an input unit such as a keyboard (Keyboard), and the optional user interface 1003 may also include a standard wired interface and a wireless interface. The network interface 1004 may optionally include a standard wired interface and a wireless interface (such as a Wi-Fi interface). The memory 1005 may be a high-speed RAM memory, or it may be a stable storage (Non-Volatile Memory), such as a disk storage. The memory 1005 may optionally be a storage device independent of the aforementioned processor 1001.

[0049] Those skilled in the art will understand that Figure 1 The device structure shown in the figure does not constitute a limitation of the device, and may include more or less components than shown in the figure, or combine certain components, or arrange the components differently.

[0050] like Figure 1 As shown, the memory 1005 as a storage medium may include an operating system, a network communication module, a user interface module, and a precision air conditioning control program. The device of the present invention can call the precision air conditioning control program stored in the memory 1005 through the processor 1001, and execute the precision air conditioning control method provided in the embodiment of the present application.

[0051] Reference Figure 2 In a second aspect, a precision air conditioning control method is provided, which comprises the following steps:

[0052] S100, obtaining the number of starts and stops and the running time of the unit, and if the number of starts and stops of the unit reaches a first set number, determining whether the running time of the unit is less than the first set time;

[0053] S210, if it is less than, determine whether the outdoor temperature is less than the first set temperature and whether the system exhaust high pressure pressure is less than the first set pressure;

[0054] S211: If the outdoor temperature is lower than the first set temperature and / or the system exhaust high pressure is lower than the first set pressure, switch the temperature and humidity control mode.

[0055] Among them, the first set number, the first set time and the first set pressure are all constant values ​​preset in advance by the technicians according to the actual operating parameters of the unit; in this embodiment, the first set temperature is -5 degrees, the first set pressure is 1.5Mpa, the first set number is 4 times, and the first set time is 30 minutes. The switched temperature and humidity control mode is one of the supply air temperature and humidity control mode, return air temperature and humidity control mode and other control modes of the unit, so that the switched temperature and humidity control mode can smoothly enable the unit to perform temperature control work at the current outdoor temperature.

[0056] With this arrangement, after the unit is started and operated, when the unit stops multiple times without losing power, it can be determined whether the current temperature and humidity control mode of the unit is suitable for the current external environment based on the number of shutdowns, the unit operating time, and the outdoor temperature or the system exhaust high-pressure pressure. When the number of starts and stops reaches the first set number and the operating time is less than the first set time, and the outdoor temperature and the system exhaust high-pressure pressure satisfy that at least one of the two is less than the first set temperature or the first set pressure, it can be determined that the current temperature and humidity control mode cannot smoothly execute the operation of the unit, and then the control unit will automatically switch the current temperature and humidity control mode, and automatically control the temperature and humidity control mode of the unit to a suitable state, thereby ensuring that the overall unit can quickly judge within the first set time of each temperature and humidity control mode execution, and finally the unit can automatically start and operate in the mode that is most suitable for the current outdoor temperature, effectively ensuring that the indoor temperature is controlled.

[0057] Reference Figure 3 In some preferred embodiments, after switching the temperature and humidity control mode in step S220, the following steps are included:

[0058] S300, reset the unit operation time and the accumulated start and stop times, and continue to determine whether the temperature and humidity control mode needs to be switched based on the unit start and stop times and the operation time.

[0059] With this arrangement, after changing the temperature and humidity control mode, it is possible to automatically determine again whether the unit has the problem of multiple starts and stops within a certain period of time under the current temperature and humidity control mode, further ensuring that the unit is still in a monitored state after changing the control mode, and the temperature and humidity control mode can be switched again if it is found that the current temperature and humidity control mode still cannot make the unit run smoothly.

[0060] Reference Figure 4 Optionally, the step 100, obtaining the number of starts and stops and the running time of the unit, if the number of starts and stops of the unit reaches a first set number, determining whether the running time of the unit is less than the first set time, further includes;

[0061] S220, if it is not less than the first set time, determining whether the running time of the unit when the number of starts and stops reaches a second set number is less than the second set time, wherein the second set time is greater than the first set time;

[0062] S221: If it is less than the second set time, a fault signal is outputted.

[0063] The second set number of times and the second set time are constant values ​​set in advance by the operator according to the actual operating parameters of the unit, and the second set time is greater than the first set time. The second set number of times can be manually set according to the judgment criteria of the technicians for the unit failure. In this embodiment, the second set number of times is 7 times and the second set time is 50 minutes.

[0064] When the outdoor temperature does not meet the startup conditions of the unit's current temperature and humidity control mode, the process from startup to shutdown is relatively short. Based on this, when the unit starts and stops for the first set number of times within a relatively short first set time, and the outdoor operating conditions meet the judgment conditions for the system exhaust high pressure, it can be accurately judged that there is a problem with the current temperature and humidity control mode. Otherwise, it means that the current temperature and humidity control mode can support the smooth start and stop of the unit. When the current temperature and humidity control mode can smoothly support the unit to start and run, the unit still starts and stops repeatedly, which means that the unit has a fault due to other problems. At this time, it can be judged and the fault signal can be output externally.

[0065] Reference Figure 5 Optionally, after the step S210, determining whether the outdoor temperature is less than the first set temperature and whether the system exhaust high pressure pressure is less than the first set pressure, further includes:

[0066] S212: If the outdoor temperature is not less than the first set temperature and the system exhaust high pressure pressure is not less than the first set pressure, a fault signal is output externally.

[0067] With this arrangement, after the unit passes through steps S210 and S211, the situation in which the unit starts and stops multiple times in a short period of time due to the outdoor temperature can be eliminated. However, based on the fact that the unit still starts and stops multiple times within the relatively short first set time, the unit can automatically determine that there are other faults inside the unit and output a fault signal to the outside world so that the operator can be informed and deal with it in time, further improving the safety of the unit during operation.

[0068] Reference Figure 6 In some preferred embodiments, if the outdoor temperature is lower than the first set temperature and / or the system exhaust high pressure pressure is lower than the first set pressure, the control unit switches from the supply air temperature and humidity control mode to the return air temperature and humidity control mode.

[0069] With this arrangement, in an environment with low outdoor temperature, such as below -5 degrees in this embodiment, the unit that is started in the supply air temperature and humidity control mode by default will not be able to start smoothly. At this time, the supply air temperature and humidity control mode is switched to the return air temperature and humidity control mode.

[0070] Furthermore, after the control unit switches from the supply air temperature and humidity control mode to the return air temperature and humidity control mode, it also includes:

[0071] S400, continuously determining whether the outdoor temperature is greater than a second set temperature;

[0072] S510. If the outdoor temperature is greater than a second set temperature, the control unit is switched from a return air temperature and humidity control mode to a supply air temperature and humidity control mode, wherein the second set temperature is greater than the first set temperature.

[0073] In this way, when the unit switches the temperature and humidity control mode according to environmental factors, it can continue to judge whether the external ambient temperature has changed during the subsequent operation. When the outdoor temperature is greater than the second set temperature, that is, when the external environmental factors have changed significantly, the current return air temperature and humidity control mode consumes more power than the supply air temperature and humidity control mode. At this time, the unit can control its own temperature control mode to return to the supply air temperature and humidity control mode. Finally, the control method provided by this application can realize the automatic switching of the temperature and humidity control mode when the outdoor temperature is too low, and can be restored to the supply air temperature and humidity control mode again after the outdoor temperature rises, so that the unit can make timely adjustments when facing sudden outdoor temperature conditions, and can restore the original temperature and humidity control mode again when the outdoor temperature returns to the normal range.

[0074] Reference Figure 6 Further, after the step S400 of continuously determining whether the outdoor temperature is greater than the second set temperature, the following steps are further included:

[0075] S520. If the outdoor temperature is greater than a third set temperature and lasts for a third set time, the control unit switches from the return air temperature and humidity control mode to the supply air temperature and humidity control mode, wherein the third set temperature is greater than the first set temperature and less than the second set temperature.

[0076] This setting optimizes the conditions for identifying the outdoor temperature, thereby ensuring that the unit can respond more accurately and quickly in actual situations to switch the temperature and humidity control mode used.

[0077] Reference Figure 7 In the third aspect, a precision air conditioning control device is provided.

[0078] A precision air conditioning control device, comprising:

[0079] An acquisition module is used to obtain the unit's operating time, start and stop times, outdoor temperature, and system exhaust high pressure of the unit;

[0080] A judgment control module, which is used to determine whether the running time of the unit is less than the first set time when the number of starts and stops of the unit reaches the first set number;

[0081] If it is less than, determine whether the outdoor temperature is less than the first set temperature and whether the system exhaust high pressure pressure is less than the first set pressure;

[0082] If the outdoor temperature is lower than the first set temperature and / or the system exhaust high pressure pressure is lower than the first set pressure, the temperature and humidity control mode is switched.

[0083] In a fourth aspect, a storage medium is provided.

[0084] The readable storage medium of the present invention stores a precision air conditioning control program, wherein when the precision air conditioning control program is executed by the processor, the steps of the precision air conditioning control method as described above are implemented. The method implemented when the precision air conditioning control program is executed can refer to the various embodiments of the precision air conditioning control method provided in this application, and will not be repeated here.

[0085] The above are only preferred embodiments of the present invention, and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

[0086] The serial numbers of the above embodiments of the present invention are only for description and do not represent the advantages or disadvantages of the embodiments.

[0087] Through the description of the above implementation methods, those skilled in the art can clearly understand that the above-mentioned embodiment methods can be implemented by means of software plus a necessary general hardware platform, and of course by hardware, but in many cases the former is a better implementation method. Based on such an understanding, the technical solution of the present invention is essentially or the part that contributes to the prior art can be embodied in the form of a software product, which is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk) as described above, and includes a number of instructions for a terminal device to execute the methods described in each embodiment of the present invention.

[0088] The above are only preferred embodiments of the present invention, and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A precision air conditioning control method, characterized in that: It includes the following steps: Obtain the number of starts and stops and the running time of the unit. If the number of starts and stops of the unit reaches a first set number, determine whether the running time of the unit is less than the first set time; If it is less than, determine whether the outdoor temperature is less than the first set temperature and whether the system exhaust high pressure pressure is less than the first set pressure; If the outdoor temperature is lower than the first set temperature and / or the system exhaust high pressure is lower than the first set pressure, switch the temperature and humidity control mode; If the outdoor temperature is lower than the first set temperature and / or the system exhaust high pressure pressure is lower than the first set pressure, the control unit switches from the supply air temperature and humidity control mode to the return air temperature and humidity control mode.

2. The precision air conditioning control method according to claim 1, characterized in that: After switching the temperature and humidity control mode, the method includes: Reset the unit running time and the accumulated start and stop times, and continue to determine whether the temperature and humidity control mode needs to be switched based on the unit start and stop times and running time.

3. The precision air conditioning control method according to claim 1, characterized in that: After determining whether the running time of the unit is less than the first set time, the method further includes: If it is not less than the first set time, determining whether the running time of the unit when the number of starts and stops reaches the second set number is less than the second set time, wherein the second set time is greater than the first set time; If it is less than the second set time, a fault signal is output externally.

4. The precision air conditioning control method according to claim 1, characterized in that: After determining whether the outdoor temperature is less than the first set temperature and whether the system exhaust high pressure pressure is less than the first set pressure, the method further includes: If the outdoor temperature is not less than the first set temperature and the system exhaust high pressure pressure is not less than the first set pressure, a fault signal is output externally.

5. The precision air conditioning control method according to claim 4, characterized in that: After the control unit switches from the supply air temperature and humidity control mode to the return air temperature and humidity control mode, it also includes: Continuously determine whether the outdoor temperature is greater than a second set temperature; If the outdoor temperature is greater than a second set temperature, the control unit switches from the return air temperature and humidity control mode to the supply air temperature and humidity control mode, wherein the second set temperature is greater than the first set temperature.

6. The precision air conditioning control method according to claim 5, characterized in that: After continuously determining whether the outdoor temperature is greater than the second set temperature, the following steps are also included: If the outdoor temperature is greater than a third set temperature and lasts for a third set time, the control unit switches from the return air temperature and humidity control mode to the supply air temperature and humidity control mode, wherein the third set temperature is greater than the first set temperature and less than the second set temperature.

7. A precision air conditioning control device, characterized in that: It includes: An acquisition module is used to obtain the unit's operating time, start and stop times, outdoor temperature, and system exhaust high pressure of the unit; A judgment control module, which is used to determine whether the running time of the unit is less than the first set time when the number of starts and stops of the unit reaches the first set number; If it is less than, determine whether the outdoor temperature is less than the first set temperature and whether the system exhaust high pressure pressure is less than the first set pressure; If the outdoor temperature is lower than the first set temperature and / or the system exhaust high pressure pressure is lower than the first set pressure, the temperature and humidity control mode is switched.

8. A precision air conditioning control device, characterized in that: It includes: A memory, a processor, and a precision air conditioning control program stored in the memory and executable on the processor, wherein the precision air conditioning control program is configured to implement the steps of the precision air conditioning control method as described in any one of claims 1 to 6.

9. A storage medium, characterized in that: Computer-readable instructions are stored non-temporarily, and when the computer-readable instructions are executed by a computer, the precision air conditioning control method described in any one of claims 1-6 can be implemented.

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