A multi-split air conditioner parallel operation control method and system

Abstract

The present application discloses a multi-split air conditioner parallel operation control method and system, and the multi-split air conditioner parallel operation control method includes: air conditioner driver generation step: according to the abstract interface standard on the dynamic environment monitoring host, the control instructions of the group-controlled air conditioner are encapsulated to obtain the driver interface corresponding to the group-controlled air conditioner; air conditioner working status data calculation step: read the signal data of the group-controlled air conditioner through the driver interface, and form an air conditioner operation log after calculating the working status data of each group-controlled air conditioner according to the signal data; group-controlled air conditioner control step: according to the working status data, each group-controlled air conditioner is scheduled. In order to be compatible with air conditioners of different brands and different signals, the present invention adds drivers for each air conditioner in the dynamic environment monitoring host, and the control interface of the air conditioner can be abstracted through the driver, thereby realizing the unification of air conditioner control.

Description

Technical Field

[0001] The present application relates to the technical field of air-conditioning group control, and in particular to a method and system for controlling parallel operation of multi-split air conditioners. Background Art

[0002] Most of the control principles of the original market products are to simulate the air conditioner remote control method. The remote control protocols of each air conditioner are customized, and the control signals are not unified. At the same time, the group control function of the air conditioner in the current market is mostly the function of the air conditioner itself, which can only control air conditioners of the same brand, and cannot meet the customer's requirements for controlling multiple brands of air conditioners together. In addition, the existing group control function does not fully consider the average operating time of each air conditioner, but only considers the operating time within a time period, which cannot achieve the balance of the overall life, and has limited processing for various faults, especially low temperature and low humidity. Since it is relatively complicated to control multiple brands and models of air conditioners together, and the group control process is easily affected by the environment, resulting in unstable control signals. Therefore, how to control multiple brands and models of air conditioners together has become an urgent problem to be solved. Summary of the invention

[0003] The embodiments of the present application provide a method and system for controlling the parallel operation of multiple-split air conditioners, so as to at least solve the problems of being unable to group-control air conditioners of different brands and different signals and unbalanced load of group-controlled air conditioners through the present invention.

[0004] The present invention provides a method for controlling parallel operation of multi-split air conditioners, comprising:

[0005] Air conditioner driver generation step: according to the abstract interface standard on the dynamic environment monitoring host, the control instructions of the group-controlled air conditioner are encapsulated to obtain the driver interface corresponding to the group-controlled air conditioner;

[0006] Air conditioner working status data calculation step: reading the signal data of the group-controlled air conditioner through the driving interface, and calculating the working status data of each group-controlled air conditioner according to the signal data to form an air conditioner operation log;

[0007] Group-controlled air conditioner control step: performing scheduling operations on each of the group-controlled air conditioners according to the working status data.

[0008] In the above-mentioned multi-split air conditioner parallel operation control method, the working status data includes the tendency mode of the group-controlled air conditioner, and the group-controlled air conditioner control steps include:

[0009] determining a tendency mode of the group-controlled air conditioner in each inspection cycle according to the working status data;

[0010] When the anti-competition mode is turned on, if the group-controlled air conditioner is in the non-inclination mode, the target working mode of the group-controlled air conditioner is set to the constant temperature air supply mode; if the number of group-controlled air conditioners in the cooling tendency mode is greater than or equal to the number of group-controlled air conditioners in the heating tendency mode, the target working mode of the group-controlled air conditioner is set to the cooling mode; if the number of group-controlled air conditioners in the cooling tendency mode is less than the number of group-controlled air conditioners in the heating tendency mode, the target working mode of the group-controlled air conditioner is set to the heating mode;

[0011] When the anti-competition mode is not turned on, the target operating mode of the group-controlled air conditioner is set to the constant temperature air supply mode.

[0012] In the above-mentioned multi-split air conditioner parallel operation control method, the working status data includes the preset startup time and the actual startup time of the group-controlled air conditioner, and the group-controlled air conditioner control step further includes:

[0013] According to a preset grouping standard, the group-controlled air conditioners are divided into a rotation group and a working group;

[0014] Selecting from the working group the group-controlled air conditioners whose actual power-on time is longer than the preset power-on time and which are not in a stacking state;

[0015] sorting the group-controlled air conditioners according to the selected working status data of the group-controlled air conditioners;

[0016] According to the first preset rule, the group-controlled air conditioners to be included in the rotation group are selected from the sorting results;

[0017] According to the shutdown command, the group-controlled air conditioners that need to enter the rotation group are driven to shut down and transferred to the rotation group.

[0018] In the above-mentioned multi-split air conditioner parallel operation control method, the group control air conditioner control step further includes:

[0019] Selecting from the working group the group-controlled air conditioner whose actual power-on time is shorter than the preset power-on time and which is in the stacking state;

[0020] The group-controlled air conditioner is driven and controlled to continue to run according to the continue running instruction, and a rotation mark is added to the selected group-controlled air conditioner in the running log.

[0021] In the above-mentioned multi-split air conditioner parallel operation control method, the working status data includes the preset shutdown time, actual shutdown time, target working mode and tendency mode of the group-controlled air conditioner, and the group-controlled air conditioner control step also includes:

[0022] Selecting from the rotation group a group-controlled air conditioner without faults whose actual shutdown duration is longer than the preset shutdown duration and whose target working mode does not conflict with the tendency mode;

[0023] sorting the group-controlled air conditioners according to the selected working status data of the group-controlled air conditioners;

[0024] Selecting the group-controlled air conditioners that need to enter the working group from the sorting results according to a second preset rule;

[0025] According to the shutdown instruction, the group-controlled air conditioner that needs to enter the working group is driven to start up and transferred into the working group, and at the same time, a rotation mark is added to the operation log for the selected group-controlled air conditioner.

[0026] In the above-mentioned multi-split air conditioner parallel operation control method, the group control air conditioner control step further includes:

[0027] When the group-controlled air conditioner without any fault in the rotation group is in the stacking state, the group-controlled air conditioner is driven and controlled to start up according to the power-on instruction and transferred to the working group;

[0028] When the group-controlled air conditioners in the working group are in the stacked state, the group-controlled air conditioners are driven and controlled to start up according to a power-on instruction;

[0029] When the stacking state of the group-controlled air conditioner in the working group is released, the actual temperature and humidity of the group-controlled air conditioner meet the set temperature and humidity of the group-controlled air conditioner, and the switch state of the group-controlled air conditioner does not change.

[0030] In the above-mentioned multi-split air conditioner parallel operation control method, the working status data includes the working mode, target working mode, tendency mode and anti-competition mode of the group-controlled air conditioner, and the group-controlled air conditioner control step further includes:

[0031] When the working mode of the group-controlled air conditioner in the working group is inconsistent with the target working mode, driving and controlling the group-controlled air conditioner to shut down according to a shutdown instruction;

[0032] The group-controlled air conditioner in the working group that is shut down due to turning on the anti-competition mode is driven and controlled to turn on according to the power-on instruction when the tendency mode is consistent with the target working mode.

[0033] In the above-mentioned multi-split air conditioner parallel operation control method, the group control air conditioner control step further includes:

[0034] When a group-controlled air conditioner in the working group fails, the group-controlled air conditioner with the failure is driven and controlled to shut down according to the shutdown instruction and transferred to the rotation group; at least one group-controlled air conditioner is selected from the rotation group and transferred to the working group and started, and a rotation mark is added to the operation log for the selected at least one group-controlled air conditioner.

[0035] In the above-mentioned multi-split air conditioner parallel operation control method, the group control air conditioner control step further includes:

[0036] When a group-controlled air conditioner without a rotation mark in the working group fails, the group-controlled air conditioner is driven and controlled to be shut down according to a shutdown instruction and transferred to the rotation group.

[0037] The present invention also provides a multi-split air conditioner parallel operation control system, wherein the multi-split air conditioner parallel operation control method described above is applicable, and the multi-split air conditioner parallel operation control system comprises:

[0038] Air conditioner drive generation unit: according to the abstract interface standard on the dynamic environment monitoring host, encapsulates the control instructions of the group-controlled air conditioner to obtain the drive interface corresponding to the group-controlled air conditioner;

[0039] An air conditioner working state data calculation unit is configured to read the signal data of the group-controlled air conditioner through the driving interface, calculate the working state data of each group-controlled air conditioner according to the signal data, and then form an air conditioner operation log;

[0040] The group-controlled air conditioner control unit performs a scheduling operation on each of the group-controlled air conditioners according to the working status data.

[0041] Compared with the related art, the present invention proposes a multi-split air conditioner parallel operation control method and system, which adds the driver of the air conditioner participating in the group control in the dynamic environment monitoring host. After driving the control interface of the abstract air conditioner, the dynamic environment monitoring host calls the air conditioner driver to realize the unified control of air conditioners of different brands and models; multiple control parameters of the air conditioner can be set and modified through the parameter setting page of the group control software, and the group control software also displays the operating status, temperature and humidity, operating mode, group control start, number of air conditioners participating in the group control and other data of the air conditioners participating in the group control in real time, which is convenient for managers to observe and record; the group control software is compatible with high temperature and low temperature , high humidity, low humidity, startup failure and other failure modes, which maximize the guarantee of the temperature and humidity environment requirements of the data center of the dynamic environment monitoring host. At the same time, the group control software controls the number of air conditioners in operation while ensuring the safety environment of the computer room, reducing the power consumption of the dynamic environment monitoring host during the group control of air conditioning; the data analysis module records the operation history records of the air conditioners participating in the group control collected by the group control software acquisition module in the air conditioner operation log. Each time the air conditioner is started, the air conditioner with less working hours is given priority through the air conditioner operation history records in the air conditioner operation log, thereby achieving load balancing for each air conditioner and increasing the life of the air conditioners participating in the group control.

[0042] Details of one or more embodiments of the present application are set forth in the following drawings and description to make other features, objects, and advantages of the present application more readily apparent. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0044] Figure 1 is a flow chart of a method for controlling parallel operation of multi-split air conditioners according to an embodiment of the present application;

[0045] Figure 2 is a flow chart of the steps of rotating operation of group-controlled air conditioners in a control working group according to an embodiment of the present application;

[0046] Figure 3 is a flow chart of the steps for rotating operation of group-controlled air conditioners in a rotation group according to an embodiment of the present application;

[0047] Figure 4 is a control framework diagram of parallel operation of multi-split air conditioners according to an embodiment of the present application;

[0048] Figure 5 This is a frame diagram of an air conditioner drive according to an embodiment of the present application;

[0049] Figure 6This is a display diagram of a computer room power environment management system according to an embodiment of the present application;

[0050] Figure 7 It is a structural schematic diagram of a multi-split air conditioner parallel operation control system of the present invention.

[0051] Wherein, the accompanying drawings are marked as follows:

[0052] Air conditioning drive generation unit: 51;

[0053] Air conditioning working status data calculation unit: 52;

[0054] Group air conditioning control unit: 53. DETAILED DESCRIPTION

[0055] In order to make the purpose, technical solutions and advantages of the present application clearer, the present application is described and illustrated below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not intended to limit the present application. Based on the embodiments provided in the present application, all other embodiments obtained by ordinary technicians in the field without making creative work are within the scope of protection of the present application.

[0056] Obviously, the drawings described below are only some examples or embodiments of the present application. For ordinary technicians in this field, the present application can also be applied to other similar scenarios based on these drawings without creative work. In addition, it can also be understood that although the efforts made in this development process may be complicated and lengthy, for ordinary technicians in this field related to the disclosure of the present application, some changes in design, manufacturing or production based on the technical content disclosed in the present application are just conventional technical means, and should not be understood as the disclosure of the present application is insufficient.

[0057] Reference to "embodiments" in this application means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those of ordinary skill in the art that the embodiments described in this application may be combined with other embodiments without conflict.

[0058] Unless otherwise defined, the technical terms or scientific terms involved in this application should be understood by people with ordinary skills in the technical field to which this application belongs. The words "one", "a", "a", "the" and the like involved in this application do not indicate a quantity limitation, and may indicate the singular or plural. The terms "include", "comprise", "have" and any of their variations involved in this application are intended to cover non-exclusive inclusions; for example, a process, method, system, product or device that includes a series of steps or modules (units) is not limited to the listed steps or units, but may also include steps or units that are not listed, or may also include other steps or units inherent to these processes, methods, products or devices. The words "connect", "connected", "coupled" and the like involved in this application are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. The "multiple" involved in this application refers to two or more. "And / or" describes the association relationship of associated objects, indicating that there may be three relationships, for example, "A and / or B" can mean: A exists alone, A and B exist at the same time, and B exists alone. The character " / " generally indicates that the objects before and after are in an "or" relationship. The terms "first", "second", "third", etc. involved in this application are only used to distinguish similar objects and do not represent a specific ordering of the objects.

[0059] The present invention realizes the connection between the dynamic environment monitoring host and the air conditioners participating in the group control through the 485 interface of the air conditioner, and forms the driver of each air conditioner participating in the group control by abstracting the control protocols of different air conditioners, so that the dynamic environment monitoring host calls the driver to realize the unified control of the air conditioners of different brands and models participating in the group control.

[0060] The present invention is described below in conjunction with specific embodiments.

[0061] Embodiment 1

[0062] This embodiment provides a method for controlling the parallel operation of multiple air conditioners. Figure 1 , Figure 1 is a flow chart of a method for controlling parallel operation of multi-split air conditioners according to an embodiment of the present application, such as Figure 1 As shown, the multi-split air conditioner parallel operation control method includes the following steps:

[0063] Air conditioner driver generation step S1: according to the abstract interface standard on the dynamic environment monitoring host, the control instructions of the group-controlled air conditioner are encapsulated to obtain the driver interface of the corresponding group-controlled air conditioner;

[0064] Air conditioner working status data calculation step S2: reading the signal data of the group-controlled air conditioner through the driver interface, and obtaining the working status data of each group-controlled air conditioner according to the signal data to form an air conditioner operation log;

[0065] Group-controlled air conditioner control step S3: Perform scheduling operations on each group-controlled air conditioner according to the working status data.

[0066] In the specific implementation, the driver of the air conditioner participating in the group control is added to the dynamic environment monitoring host. After driving the control interface of the abstract air conditioner, the dynamic environment monitoring host calls the air conditioner driver to achieve unified control of air conditioners of different brands and models.

[0067] In an embodiment, the working status data includes a tendency mode of the group-controlled air conditioner, and the group-controlled air conditioner control step S3 includes:

[0068] Determine the tendency mode of the group-controlled air conditioner in each inspection cycle based on the working status data;

[0069] When the anti-competition mode is turned on, if the group-controlled air conditioner is in the non-inclination mode, the target working mode of the group-controlled air conditioner is set to the constant temperature air supply mode; if the number of group-controlled air conditioners in the cooling tendency mode is greater than or equal to the number of group-controlled air conditioners in the heating tendency mode, the target working mode of the group-controlled air conditioner is set to the cooling mode; if the number of group-controlled air conditioners in the cooling tendency mode is less than the number of group-controlled air conditioners in the heating tendency mode, the target working mode of the group-controlled air conditioner is set to the heating mode;

[0070] When the anti-competition mode is not enabled, the target working mode of the group-controlled air conditioner is set to the constant temperature air supply mode.

[0071] In an embodiment, the working status data includes a preset startup time and an actual startup time of the group-controlled air conditioner, and the group-controlled air conditioner control step S3 further includes:

[0072] S311: according to the preset grouping standard, the group-controlled air conditioners are divided into a rotation group and a working group;

[0073] S312: Selecting from the working group the group-controlled air conditioners whose actual power-on time is longer than the preset power-on time and which are not in a stacking state;

[0074] S313: sorting the group-controlled air conditioners according to the selected working status data of the group-controlled air conditioners;

[0075] S314: Selecting the group-controlled air conditioners that need to enter the rest group from the sorting results according to the first preset rule;

[0076] S315: According to the shutdown command, the group-controlled air conditioners that need to enter the rotation group are driven to shut down and transferred to the rotation group.

[0077] In an embodiment, the group air conditioning control step S3 further includes:

[0078] S316: Selecting from the working group the group-controlled air conditioners whose actual power-on time is less than the preset power-on time and which are in a stacking state;

[0079] S317: driving and controlling the group-controlled air conditioner to continue to operate according to the continue operation instruction, and adding a rotation mark to the selected group-controlled air conditioner in the operation log.

[0080] In the specific implementation, the collected operation history records of the group-controlled air conditioners are recorded in the air conditioner operation log. Each time the air conditioner is started, the air conditioner with less working hours is given priority through the air conditioner operation history records in the air conditioner operation log, thereby achieving load balancing for each air conditioner and increasing the life of the air conditioners participating in the group control.

[0081] In an embodiment, the working status data includes a preset shutdown time, an actual shutdown time, a target working mode and a tendency mode of the group-controlled air conditioner, and the group-controlled air conditioner control step S3 further includes:

[0082] S331: Selecting from the rotation group a group-controlled air conditioner without any fault whose actual shutdown time is longer than the preset shutdown time and whose target working mode does not conflict with the tendency mode;

[0083] S332: sorting the group-controlled air conditioners according to the selected working status data of the group-controlled air conditioners;

[0084] S333: selecting the group-controlled air conditioners to be included in the working group from the sorting results according to the second preset rule;

[0085] S334: According to the shutdown command, the group-controlled air conditioner that needs to enter the working group is driven to start up and transferred to the working group, and at the same time, a rotation mark is added to the operation log for the selected group-controlled air conditioner.

[0086] In an embodiment, the group air conditioning control step S3 further includes:

[0087] When the group-controlled air conditioners without faults in the rotation group are in the cascade state, the group-controlled air conditioners are driven and controlled to start up according to the power-on instruction and transferred to the working group;

[0088] When the group-controlled air conditioners in the working group are in the cascade state, the group-controlled air conditioners are driven and controlled to start up according to the power-on instruction;

[0089] When the cascading state of the group-controlled air conditioner in the working group is released, the actual temperature and humidity of the group-controlled air conditioner meet the set temperature and humidity of the group-controlled air conditioner, and the switch state of the group-controlled air conditioner does not change.

[0090] In the embodiment, the working state data includes the working mode, target working mode, tendency mode and anti-competition mode of the group-controlled air conditioner, and the group-controlled air conditioner control step S3 further includes:

[0091] When the working mode of the group-controlled air conditioner in the working group is inconsistent with the target working mode, the group-controlled air conditioner is driven and controlled to shut down according to the shutdown instruction;

[0092] For the group-controlled air conditioner in the working group that is shut down due to the anti-competition mode, when the tendency mode is consistent with the target working mode, the group-controlled air conditioner is driven and controlled to be turned on according to the power-on instruction.

[0093] In an embodiment, the group air conditioning control step S3 further includes:

[0094] When a group-controlled air conditioner in a working group fails, the group-controlled air conditioner with the failure is driven and controlled to shut down according to the shutdown instruction and transferred to the rotation group; at least one group-controlled air conditioner is selected from the rotation group and transferred to the working group and started, and a rotation mark is added to the operation log for the selected at least one group-controlled air conditioner.

[0095] In an embodiment, the group air conditioning control step S3 further includes:

[0096] When a group-controlled air conditioner without a rotation mark in the working group fails, the group-controlled air conditioner is driven and controlled to shut down according to the shutdown instruction and transferred to the rotation group.

[0097] In the specific implementation, the group control software is compatible with multiple failure modes such as high temperature, low temperature, high humidity, low humidity, and startup failure, which maximizes the guarantee of the temperature and humidity environmental requirements of the dynamic environment monitoring host data center. At the same time, the group control software controls the number of air conditioners in operation while ensuring the safety environment of the computer room, thereby reducing the power consumption of the dynamic environment monitoring host during the group control of air conditioning.

[0098] Embodiment 2

[0099] Please refer to Figures 2 to 6 , Figure 2 is a flow chart of the steps of rotating operation of group-controlled air conditioners in a control working group according to an embodiment of the present application; Figure 3 is a flow chart of the steps for rotating operation of group-controlled air conditioners in a rotation group according to an embodiment of the present application; Figure 4 is a control framework diagram of parallel operation of multi-split air conditioners according to an embodiment of the present application; Figure 5 This is a frame diagram of an air conditioner drive according to an embodiment of the present application; Figure 6 1 is a display diagram of the power environment management system of the computer room according to the embodiment of the present application. Figures 2 to 6 As shown, the multi-split air conditioner parallel operation control system of the invention is applicable to the multi-split air conditioner parallel operation control method mentioned above, and the multi-split air conditioner parallel operation control system includes:

[0100] The air conditioner drive generation unit 51: after the dynamic environment monitoring host is connected to the group-controlled air conditioner, the control instructions of the group-controlled air conditioner are encapsulated according to the abstract interface standard on the dynamic environment monitoring host to form the corresponding drive of the group-controlled air conditioner;

[0101] Air conditioner working state data calculation unit 52: The group control software acquisition module collects the signal data of the group control air conditioner by driving, and sends the signal data to the group control software analysis module. After the group control software analysis module calculates and obtains the working state data of the group control air conditioner, the working state data is recorded in the air conditioner operation log;

[0102] Air conditioner operation status acquisition unit 53: The group control software acquisition module determines the operation mode of the group control air conditioner during the inspection cycle, and calculates and obtains the judgment result from the air conditioner operation log;

[0103] Air conditioning parameter setting unit 54: sets control parameters of the group-controlled air conditioning through the parameter setting page.

[0104] In a specific implementation, the multi-split air conditioner parallel operation control system further includes a group control software module, which includes a group control software acquisition module, a group control software analysis module, and a driving interface of multiple air conditioners participating in the group control;

[0105] Among them, after the dynamic environment monitoring host and the group-controlled air conditioner are connected through a 485 cable, the control instructions of the group-controlled air conditioner are encapsulated according to the abstract interface standard on the dynamic environment monitoring host to form the corresponding driver interface of the group-controlled air conditioner, so that each air conditioner participating in the group control has its corresponding driver; the drawing interface includes: a control interface and a signal interface. The control interface is responsible for encapsulating the instructions for controlling the air conditioner to start and shut down, set temperature, set humidity, set temperature alarm upper and lower limits, and set humidity alarm upper and lower limits. The signal interface is responsible for encapsulating the instructions for controlling the current operating mode, current temperature, current humidity, current compressor operating status, fan operating status, and fault status of the air conditioner.

[0106] Among them, the group control software module is a Java program running under the Linux system of the dynamic environment host. You can log in to the parameter setting interface of the group control through the PC browser. In the parameter setting page, you can view device parameters, device status, historical data, control instructions, adjust alarm settings, storage settings, and batch settings. You can also start rotation mode, anti-competition mode, and cascading mode. You can also display the number of air conditioners participating in the group control that are in the on state and the rotation cycle. In the rotation cycle, when you click the air conditioner group control item, the parameter setting page can also display the specified sorting, operating status, power-on failure, cascade high temperature, cascade low temperature, cascade high humidity, cascade low humidity, temperature mode, current temperature, set temperature of the air conditioners participating in the group control. You can also use the operation items to move the air conditioner displayed on the page up, down or delete it in the page list.

[0107] In the specific implementation, the dynamic environment monitoring host controls the group control air conditioning tendency mode through the following methods:

[0108] When the current temperature of the group-controlled air conditioner is 2°C higher than the set temperature, the group-controlled software acquisition module sends a first tendency mode conversion instruction to the driver interface corresponding to the group-controlled air conditioner, and the driver interface controls the group-controlled air conditioner to enter the cooling tendency mode, and the group-controlled air conditioner starts cooling;

[0109] When the current temperature of the group-controlled air conditioner is 2°C lower than the set temperature, the group-controlled software acquisition module sends a second tendency mode conversion instruction to the driver interface corresponding to the group-controlled air conditioner, and the driver interface controls the group-controlled air conditioner to enter the heating tendency mode, and the air conditioner starts heating;

[0110] When the current temperature of the group-controlled air conditioner is within a temperature range of 2°C lower or higher than the set temperature of the air conditioner, the group-controlled software acquisition module reads the most recent tendency mode data of the group-controlled air conditioner from the group-controlled air conditioner operation log. When the most recent tendency mode of the group-controlled air conditioner is not the cooling tendency mode and the heating tendency mode, the group-controlled software acquisition module sends a third tendency mode conversion instruction to the driver interface corresponding to the group-controlled air conditioner. The driver interface controls the group-controlled air conditioner to enter the constant temperature air supply mode, and the air conditioner starts to supply air at a constant temperature.

[0111] Different brands of air conditioners have different anti-shake processing, generally 2°C. That is to say, when the set temperature is 25°C, if the current air-conditioning temperature is greater than or equal to 27°C, it will cool; if it is less than or equal to 23°C, it will heat, otherwise it will supply air at a constant temperature.

[0112] In the specific implementation, the dynamic environment monitoring host controls the target working mode of the group-controlled air conditioner through the following methods:

[0113] The group control software acquisition module determines the tendency mode of the group control air conditioner in each inspection cycle according to the working status data. When the anti-competition mode is turned on, if the group control air conditioner is in the non-tendency mode, the target working mode of the group control air conditioner is set to the constant temperature air supply mode;

[0114] If the number of group-controlled air conditioners in cooling tendency mode is greater than or equal to the number of group-controlled air conditioners in heating tendency mode, the target working mode of the group-controlled air conditioners is set to cooling mode; if the number of group-controlled air conditioners in cooling tendency mode is less than the number of group-controlled air conditioners in heating tendency mode, the target working mode of the group-controlled air conditioners is set to heating mode;

[0115] When the anti-competition mode is not enabled, the target working mode of the group-controlled air conditioner is set to the constant temperature air supply mode.

[0116] In a specific implementation, the method of controlling the group-controlled air conditioners by the online air conditioner parallel operation control system includes rotation scheduling;

[0117] Rotation scheduling is a periodic and stable operation mode of air conditioner group control. It is carried out when the rotation cycle timer bursts. When the program runs for the first time, rotation scheduling is also required. Rotation scheduling can realize the rotation operation of multiple air conditioners.

[0118] The dynamic environment monitoring host controls the group-controlled air conditioners to rotate through rotation scheduling. The detailed steps are as follows:

[0119] 1) Steps for rotating operation of group-controlled air conditioners in the control work group:

[0120] Set the number of group-controlled air conditioners N that are turned on in rotation each time. If the rotation mode is not turned on, N is equal to the total number of air conditioners participating in the group control. Divide the group-controlled air conditioners into a rotation group and a working group. The grouping standard is that the air conditioners that are turned on and the air conditioners that are in operation but turned off due to the anti-competition mode are the set of working groups, and the number of air conditioners in the working group is W; the set of air conditioners that are not turned on is the rotation group, excluding the air conditioners that are turned off due to the anti-competition mode after turning on.

[0121] Select the group-controlled air conditioners with a startup time of more than 15 minutes and not in the stacking state from the working group. The number of group-controlled air conditioners is W1;

[0122] According to the selected working status data and sorting rules of the group-controlled air conditioners, the group-controlled air conditioners are sorted; wherein, the sorting rules are as follows: Rule 1, the air conditioners in the working group whose startup time is higher than 15 minutes and are not in the stacking state are sorted according to the tendency working mode, and the air conditioners with the same tendency working mode are placed in front, and the air conditioners with inconsistent tendency modes are placed in the back; Rule 2, the group-controlled air conditioners sorted according to Rule 1 are sorted according to the current startup time, and the ones that start earlier are placed in front; Rule 3, the group-controlled air conditioners sorted according to Rule 2 are sorted according to the specified order in the power environment management system of the computer room, and the ones with smaller sequence numbers are placed in front, and the sorted group-controlled air conditioner queue Q1 is obtained. For example, among the 10 air conditioners currently in operation, 8 are cooling and 2 are heating. According to Rule 1, the air conditioners in the cooling mode are in front. In Rule 2, if the air conditioners in Rule 1 have the same tendency working mode, the ones that start earlier are in front, that is, the ones with longer running time are in front. In Rule 3, when the air conditioner tendency working mode and running time are consistent, they are sorted in the specified order, that is, the sequence number of each air conditioner set in the air conditioner group control;

[0123] After the dynamic environment monitoring host selects the group-controlled air conditioner X1 that needs to enter the rotation group from the group-controlled air conditioner queue Q1 according to the first preset rule, it drives and controls the group-controlled air conditioner X1 that needs to enter the rotation group to shut down according to the shutdown command, and transfers it to the rotation group;

[0124] Select the group-controlled air conditioners in the stacking state with a startup time of less than 15 minutes from the working group. The number of group-controlled air conditioners is W2, where W=W1+W2. According to the continue operation instruction, the group-controlled air conditioners are driven to continue to operate, and a rotation mark is added to the selected group-controlled air conditioners in the operation log. This step is to facilitate the judgment of whether the air conditioner continues to operate during the rotation inspection cycle next week.

[0125] Steps to control the rotation operation of group-controlled air conditioners in the rotation group:

[0126] Select group-controlled air conditioners from the rotation group that have no faults and have been turned off for more than 15 minutes, and whose working modes are consistent with the target working mode. The number of group-controlled air conditioners is T;

[0127] The selected group-controlled air conditioners are sorted from morning to night according to their downtime. If the downtime is the same, they are sorted in the specified order to obtain the group-controlled air conditioner queue Q2. The dynamic environment monitoring host selects the first X2 group-controlled air conditioners in the group-controlled air conditioner queue Q2 that need to enter the working group according to the second preset rule.

[0128] According to the shutdown command, the group-controlled air conditioners that need to enter the working group are driven to start up and transferred to the working group. At the same time, a rotation mark is added to the operation log for the selected group-controlled air conditioners;

[0129] Among them, when W2 + T>=N, the number of available substitutes is sufficient;

[0130] X1= W1;

[0131] X2= N – W2;

[0132] otherwise,

[0133] When X1 = W + TN, the number of available replacements is insufficient;

[0134] X2 = T.

[0135] In a specific implementation, the method of controlling the group-controlled air conditioner by the online air conditioner parallel operation control system also includes real-time scheduling; real-time scheduling is to handle emergencies during the group control operation, such as when a certain air conditioner fails to operate and other air conditioners need to be started to replace it, when the local temperature is high, the adjacent air conditioner should also be started to increase the cooling power, and the real-time scheduling is performed each time the signal is collected;

[0136] In a specific implementation, the real-time scheduling includes cascading scheduling, wherein the cascading state means that the air conditioner is in a high temperature alarm or low temperature alarm or high humidity alarm or low humidity alarm state for more than 3 minutes continuously, and the alarm is not released;

[0137] The steps for controlling group air conditioners through cascade scheduling are as follows:

[0138] When the group-controlled air conditioners without faults in the rotation group are in the cascade state, the group-controlled air conditioners are driven and controlled to start up according to the power-on instruction and transferred to the working group;

[0139] When the group-controlled air conditioner in the working group is in the cascade state, whether it is in the running state or the anti-competition mode is turned off, the group-controlled air conditioner is driven and controlled to start up according to the power-on instruction;

[0140] When the cascading state of the group-controlled air conditioner in the working group is released, the actual temperature and humidity of the group-controlled air conditioner meet the set temperature and humidity of the group-controlled air conditioner, and the switch state of the group-controlled air conditioner does not change. For example, when the air conditioner cascading state is released, the group control software acquisition module polls the state of the air conditioner through the group-controlled air conditioner driver. If the current temperature and humidity meet the set temperature and humidity of the air conditioner, the air conditioner cascading state is released, and the switch state of the air conditioner is not changed at this time.

[0141] In the specific implementation, real-time scheduling also includes anti-contention scheduling;

[0142] The steps for controlling group air conditioners through anti-competition scheduling are as follows:

[0143] The acquisition module of the air conditioning group control software reads the signal data of the air conditioner through the air conditioning driver, and sends the signal data to the analysis module to calculate the air conditioning working status data, and records the working status data in the air conditioning operation log;

[0144] The group control software acquisition module determines the operating mode of the air conditioner in each inspection cycle and calculates the operating status of most air conditioners from the air conditioner operation log;

[0145] When the working mode of the group-controlled air conditioner in the working group is inconsistent with the target working mode, the group-controlled air conditioner is driven to shut down according to the shutdown command. For example, when the group control software acquisition module collects that the working mode of a certain air conditioner is inconsistent with the target working mode, and the tendency working mode of most air conditioners is inconsistent with the target working mode, the air conditioner whose working mode is inconsistent with the target working mode is driven to shut down according to the shutdown command;

[0146] For the group-controlled air conditioner in the working group that is shut down due to the anti-competition mode, when the tendency mode is consistent with the target working mode, the group-controlled air conditioner that is shut down due to the anti-competition mode and whose tendency mode is consistent with the target working mode is driven and controlled to start up according to the power-on instruction;

[0147] Among them, the priority of cascading scheduling is higher than that of anti-contention scheduling.

[0148] In a specific implementation, the real-time scheduling also includes fault backup scheduling, in which the driver interface polls and reads the fault register value of each air conditioner, and the group control software acquisition module collects the fault register value of the group-controlled air conditioner through the driver interface, and controls the group-controlled air conditioner to start or shut down according to the fault register value;

[0149] The operation steps of group-controlled air conditioners through fault backup scheduling are as follows:

[0150] The fault type of the air conditioner can be determined by the fault register value of the air conditioner. When a group-controlled air conditioner in the working group fails to start or has a communication failure, the group-controlled air conditioner with the fault is driven and controlled to shut down according to the shutdown instruction, and after being transferred to the rotation group, at least one group-controlled air conditioner is selected from the rotation group, that is, the standby machine, transferred to the working group and started, and a rotation mark is added to the operation log for the selected at least one group-controlled air conditioner; wherein the method of selecting the standby machine is the same as the rotation scheduling, for example, a group-controlled air conditioner without fault and with a shutdown time of more than 15 minutes, and with a tendency to work in a mode consistent with the target work mode is selected from the rotation group, and the number of group-controlled air conditioners is T;

[0151] The selected group-controlled air conditioners are sorted from morning to night according to their downtime. If the downtime is the same, they are sorted in the specified order to obtain the group-controlled air conditioner queue Q2. The dynamic environment monitoring selects the first X2 group-controlled air conditioners in the group-controlled air conditioner queue Q2 that need to enter the working group according to the second preset rule.

[0152] According to the shutdown command, the group-controlled air conditioner that needs to enter the working group is driven to start up and transferred to the working group. At the same time, a rotation mark is added to the operation log for the selected group-controlled air conditioner.

[0153] When a group-controlled air conditioner without a rotation mark in the working group fails to start up or has a communication failure, the group-controlled air conditioner is driven and controlled to shut down according to the shutdown command and transferred to the rotation group.

[0154] In summary, the present invention abstracts the control protocol of the air conditioners participating in the group control through an abstract interface, and encapsulates the corresponding driver in each air conditioner, thereby realizing unified control of the air conditioners. Among them, the group control software module is compatible with various fault modes, and guarantees the temperature and humidity environment requirements of the data center of the dynamic environment monitoring host to the maximum extent. At the same time, while ensuring the safety environment of the computer room, it controls the number of air conditioners in operation and reduces power consumption. The present invention also includes an air conditioner operation log, which records the operation history of the air conditioner in detail. Therefore, each time the air conditioner is started, according to the air conditioner operation log, the dynamic environment monitoring host gives priority to the air conditioner with less working time, thereby realizing load balancing of each air conditioner and increasing the life of the air conditioners participating in the group control.

[0155] The above-mentioned embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application shall be subject to the protection scope of the attached claims.

Claims

1. A method for controlling parallel operation of multi-split air conditioners, characterized in that: Applied to the dynamic environment monitoring host to control the group-controlled air conditioner, the multi-split air conditioner includes: Group control air conditioning; The dynamic environment monitoring host is connected to the group-controlled air conditioner through a 485 cable. According to the abstract interface standard on the dynamic environment monitoring host, the control instructions of the group-controlled air conditioner are encapsulated to form a driver interface corresponding to the group-controlled air conditioner, so that each air conditioner participating in the group control has its corresponding driver for calling the driver of the group-controlled air conditioner; The multi-split air conditioner parallel operation control method comprises: Air conditioner driver generation step: according to the abstract interface standard on the dynamic environment monitoring host, the control instructions of the group-controlled air conditioner are encapsulated to obtain the driver interface corresponding to the group-controlled air conditioner; Air conditioner working status data calculation step: reading the signal data of the group-controlled air conditioner through the driving interface, and calculating the working status data of each group-controlled air conditioner according to the signal data to form an air conditioner operation log; The group-controlled air conditioner control step includes: performing a scheduling operation on each of the group-controlled air conditioners according to the working status data; the working status data includes a preset startup time and an actual startup time of the group-controlled air conditioner, and the group-controlled air conditioner control step also includes: According to a preset grouping standard, the group-controlled air conditioners are divided into a rotation group and a working group; the working group is a collection of air conditioners that are turned on and running and air conditioners that are originally in running state but turned off due to anti-competition mode, and the rotation group is air conditioners that are not turned on and running; During the step of rotating operation of the group-controlled air conditioners in the control rotation group, when W2+T is greater than or equal to N, it is determined that the number of group-controlled air conditioners available for replacement is sufficient; Among them, N is the number of group-controlled air conditioners that are turned on in rotation each time; W2 is the number of group-controlled air conditioners selected from the working group whose power-on time is less than 15 minutes and are in a cascading state; the cascading state means that the group-controlled air conditioner is in a high temperature alarm, low temperature alarm, high humidity alarm, or low humidity alarm state for more than 3 minutes, and the alarm has not been released; T is the number of group-controlled air conditioners selected from the rotation group that have no faults, have been shut down for more than 15 minutes, and whose tendency working mode is consistent with the target working mode.

2. The multi-split air conditioner parallel operation control method according to claim 1, characterized in that: The working status data includes the tendency mode of the group-controlled air conditioner, and the group-controlled air conditioner control steps include: determining a tendency mode of the group-controlled air conditioner in each inspection cycle according to the working status data; When the anti-competition mode is turned on, if the group-controlled air conditioner is in the non-inclination mode, the target working mode of the group-controlled air conditioner is set to the constant temperature air supply mode; if the number of group-controlled air conditioners in the cooling tendency mode is greater than or equal to the number of group-controlled air conditioners in the heating tendency mode, the target working mode of the group-controlled air conditioner is set to the cooling mode; if the number of group-controlled air conditioners in the cooling tendency mode is less than the number of group-controlled air conditioners in the heating tendency mode, the target working mode of the group-controlled air conditioner is set to the heating mode; When the anti-competition mode is not turned on, the target operating mode of the group-controlled air conditioner is set to the constant temperature air supply mode.

3. The multi-split air conditioner parallel operation control method according to claim 1, characterized in that: The working status data includes the preset startup time and the actual startup time of the group-controlled air conditioner, and the group-controlled air conditioner control step further includes: According to a preset grouping standard, the group-controlled air conditioners are divided into a rotation group and a working group; Selecting from the working group the group-controlled air conditioners whose actual power-on time is longer than the preset power-on time and which are not in a stacking state; sorting the group-controlled air conditioners according to the selected working status data of the group-controlled air conditioners; According to the first preset rule, the group-controlled air conditioners to be included in the rotation group are selected from the sorting results; According to the shutdown command, the group-controlled air conditioners that need to enter the rotation group are driven to shut down and transferred to the rotation group.

4. The multi-split air conditioner parallel operation control method according to claim 3, characterized in that: The group air conditioning control step also includes: Selecting from the working group the group-controlled air conditioner whose actual power-on time is shorter than the preset power-on time and which is in the stacking state; The group-controlled air conditioner is driven and controlled to continue to run according to the continue running instruction, and a rotation mark is added to the selected group-controlled air conditioner in the running log.

5. The multi-split air conditioner parallel operation control method according to claim 3, characterized in that: The working status data includes the preset shutdown time, the actual shutdown time, the target working mode and the tendency mode of the group-controlled air conditioner, and the group-controlled air conditioner control step further includes: Selecting from the rotation group a group-controlled air conditioner without faults whose actual shutdown duration is longer than the preset shutdown duration and whose target working mode does not conflict with the tendency mode; sorting the group-controlled air conditioners according to the selected working status data of the group-controlled air conditioners; Selecting the group-controlled air conditioners that need to enter the working group from the sorting results according to a second preset rule; According to the shutdown command, the group-controlled air conditioner that needs to enter the rotation group is driven to start up and transferred to the working group, and a rotation mark is added to the selected group-controlled air conditioner in the operation log.

6. The multi-split air conditioner parallel operation control method according to claim 3, characterized in that: The group air conditioning control step also includes: When the group-controlled air conditioner without any fault in the rotation group is in the stacking state, the group-controlled air conditioner is driven and controlled to start up according to the power-on instruction and transferred to the working group; When the group-controlled air conditioners in the working group are in the stacked state, the group-controlled air conditioners are driven and controlled to start up according to a power-on instruction; When the stacking state of the group-controlled air conditioner in the working group is released, the actual temperature and humidity of the group-controlled air conditioner meet the set temperature and humidity of the group-controlled air conditioner, and the switch state of the group-controlled air conditioner does not change.

7. The multi-split air conditioner parallel operation control method according to claim 3, characterized in that: The working state data includes the working mode, target working mode, tendency mode and anti-competition mode of the group-controlled air conditioner, and the control step of the group-controlled air conditioner further includes: When the working mode of the group-controlled air conditioner in the working group is inconsistent with the target working mode, driving and controlling the group-controlled air conditioner to shut down according to a shutdown instruction; The group-controlled air conditioner in the working group that is shut down due to turning on the anti-competition mode is driven and controlled to turn on according to the power-on instruction when the tendency mode is consistent with the target working mode.

8. The multi-split air conditioner parallel operation control method according to claim 3, characterized in that: The group air conditioning control step also includes: When a group-controlled air conditioner in the working group fails, the group-controlled air conditioner with the failure is driven and controlled to shut down according to the shutdown instruction and transferred to the rotation group; at least one group-controlled air conditioner is selected from the rotation group and transferred to the working group and started, and a rotation mark is added to the operation log for the selected at least one group-controlled air conditioner.

9. The multi-split air conditioner parallel operation control method according to claim 3, characterized in that: The group air conditioning control step also includes: When a group-controlled air conditioner without a rotation mark in the working group fails, the group-controlled air conditioner is driven and controlled to be shut down according to a shutdown instruction and transferred to the rotation group.

10. A multi-split air conditioner parallel operation control system, characterized in that: Applied to the dynamic environment monitoring host to control the group-controlled air conditioner, the multi-split air conditioner parallel operation control system includes: Air conditioner drive generation unit: according to the abstract interface standard on the dynamic environment monitoring host, encapsulates the control instructions of the group-controlled air conditioner to obtain the drive interface corresponding to the group-controlled air conditioner; An air conditioner working state data calculation unit is configured to read the signal data of the group-controlled air conditioner through the driving interface, calculate the working state data of each group-controlled air conditioner according to the signal data, and then form an air conditioner operation log; The group-controlled air conditioner control unit performs a scheduling operation on each of the group-controlled air conditioners according to the working status data, wherein the working status data includes the preset startup time and the actual startup time of the group-controlled air conditioner, wherein: According to a preset grouping standard, the group-controlled air conditioners are divided into a rotation group and a working group; the working group is a collection of air conditioners that are turned on and running and air conditioners that are originally in running state but turned off due to anti-competition mode, and the rotation group is air conditioners that are not turned on and running; During the step of rotating operation of the group-controlled air conditioners in the control rotation group, when W2+T is greater than or equal to N, it is determined that the number of group-controlled air conditioners available for replacement is sufficient; Among them, N is the number of group-controlled air conditioners that are turned on in rotation each time; W2 is the number of group-controlled air conditioners selected from the working group whose power-on time is less than 15 minutes and are in a cascading state; the cascading state means that the group-controlled air conditioner is in a high temperature alarm, low temperature alarm, high humidity alarm, or low humidity alarm state for more than 3 minutes, and the alarm has not been released; T is the number of group-controlled air conditioners selected from the rotation group that have no faults, have been shut down for more than 15 minutes, and whose tendency working mode is consistent with the target working mode.

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