Communication line optimization layout method, device, equipment and medium for multi-split air conditioner

Abstract

The embodiment of the present application provides a method, device, equipment and medium for optimizing the layout of communication lines of a multi-split air conditioner, by obtaining the spatial position data of the indoor unit and the spatial position data of the outdoor unit; determining the spatial position connectivity graph of the indoor unit and the outdoor unit according to the spatial position data of the indoor unit and the spatial position data of the outdoor unit, the spatial position connectivity graph contains nodes corresponding to the indoor unit and the outdoor unit; determining the installation length of the communication line between any two nodes in the spatial position connectivity graph; determining the minimum spanning tree corresponding to the spatial position connectivity graph according to the installation length of the communication line, the minimum spanning tree is used to indicate the connection mode of the communication line between the indoor unit and the outdoor unit. Through this scheme, it can be ensured that when the indoor unit and the outdoor unit in the multi-split air conditioner are connected for communication, the installation length of the communication line used is minimized, thereby reducing the system installation cost.

Description

Technical Field

[0001] The present application relates to the technical field of air conditioning, and in particular to a method, device, equipment and medium for optimizing the arrangement of communication lines of a multi-split air conditioner. Background Art

[0002] In order to realize the control interaction between the indoor and outdoor units of a multi-split air conditioner, a communication line needs to be connected between the outdoor and indoor units to complete the signal transmission. In the related art, for the installation of a multi-split air conditioner, the installer usually connects the communication line according to the position of the indoor and outdoor units of the multi-split air conditioner based on experience. However, the installation method based on experience has the problem of using a large number of communication lines, which leads to high installation costs. Summary of the invention

[0003] In view of this, the present application hopes to provide a method, device, equipment and medium for optimizing the layout of communication lines of a multi-split air conditioner to ensure that the amount of communication lines required to connect the internal and external units of the multi-split air conditioner is minimized, thereby solving the technical problem of the large amount of communication lines used in the prior art and reducing the installation cost of the multi-split air conditioner.

[0004] To achieve the above objectives, the technical solution of this application is as follows:

[0005] In a first aspect, an embodiment of the present application provides a method for optimizing the layout of communication lines of a multi-split air conditioner, wherein the multi-split air conditioner includes an indoor unit and an outdoor unit. The method for optimizing the layout of communication lines of the multi-split air conditioner includes: obtaining spatial position data of the indoor unit and spatial position data of the outdoor unit; determining a spatial position connectivity graph of the indoor unit and the outdoor unit based on the spatial position data of the indoor unit and the spatial position data of the outdoor unit, wherein the spatial position connectivity graph includes nodes corresponding to the indoor unit and the outdoor unit; determining an installation length of the communication line between any two nodes in the spatial position connectivity graph; determining a minimum spanning tree corresponding to the spatial position connectivity graph based on the installation length of the communication line, wherein the minimum spanning tree is used to indicate a communication line connection method between the indoor unit and the outdoor unit corresponding to when the installation length of the communication line is minimized.

[0006] In some embodiments, the minimum spanning tree corresponding to the spatial location connectivity graph is determined based on the installation length of the communication line, including: based on the installation length of the communication line, a minimum spanning tree search algorithm is used to determine the minimum spanning tree corresponding to the spatial location connectivity graph, and the minimum spanning tree search algorithm includes a Kruskal algorithm or a Prim algorithm.

[0007] In some embodiments, a spatial position connectivity map of the indoor unit and the outdoor unit is determined based on the spatial position data of the indoor unit and the spatial position data of the outdoor unit, including: among the indoor units of the multi-split air conditioner, determining a target indoor unit with the largest spatial position distance from the outdoor unit; and determining a spatial position connectivity map based on the spatial position data of the target indoor unit and the spatial position data of the outdoor unit, in which the longest communication line installation length between the target indoor unit and the outdoor unit is less than or equal to a preset value.

[0008] In some embodiments, obtaining the spatial position data of the indoor unit and the spatial position data of the outdoor unit includes: obtaining the spatial position data of the indoor unit and the spatial position data of the outdoor unit from a building installation drawing and / or a building information management system.

[0009] In some embodiments, the method for optimizing the layout of communication lines of a multi-split air conditioner further includes: determining the connection of the indoor unit drainage pipeline according to the communication line connection method corresponding to the minimum spanning tree.

[0010] In a second aspect, an embodiment of the present application provides a communication line optimization layout device for a multi-split air conditioner, which includes an indoor unit and an outdoor unit. The communication line optimization layout device for the multi-split air conditioner includes: an acquisition module, used to acquire spatial position data of the indoor unit and the spatial position data of the outdoor unit; a first determination module, used to determine a spatial position connectivity graph of the indoor unit and the outdoor unit based on the spatial position data of the indoor unit and the spatial position data of the outdoor unit, the spatial position connectivity graph containing nodes corresponding to the indoor unit and the outdoor unit; a second determination module, used to determine the installation length of the communication line between any two nodes in the spatial position connectivity graph; a third determination module, used to determine a minimum spanning tree corresponding to the spatial position connectivity graph based on the installation length of the communication line, the minimum spanning tree being used to indicate a communication line connection method between the indoor unit and the outdoor unit corresponding to when the installation length of the communication line is minimized.

[0011] In some embodiments, the third determination module is specifically used to: determine the minimum spanning tree corresponding to the first spatial position connectivity graph based on the installation length of the communication line using a minimum spanning tree search algorithm, wherein the minimum spanning tree search algorithm includes a Kruskal algorithm or a Prim algorithm.

[0012] In some embodiments, the first determination module is specifically used to: determine, among the indoor units of a multi-split air conditioner, a target indoor unit with the largest spatial distance from the outdoor unit; determine a spatial position connectivity map based on the spatial position data of the target indoor unit and the spatial position data of the outdoor unit, in which the longest communication line installation length between the target indoor unit and the outdoor unit is less than a preset value.

[0013] In some embodiments, the acquisition module is specifically used to obtain the spatial position data of the indoor unit and the spatial position data of the outdoor unit from the building installation drawings and / or the building information management system.

[0014] In some embodiments, the communication line optimization layout device of the multi-split air conditioner also includes a fourth determination module, which is used to determine the connection of the indoor unit drainage pipeline according to the communication line connection method corresponding to the minimum spanning tree.

[0015] In a third aspect, an embodiment of the present application provides an electronic device, comprising: at least one processor; and a memory connected to the at least one processor; wherein the memory is used to store computer execution instructions, which are executed by the at least one processor to enable the at least one processor to execute the communication line optimization layout method for the multi-split air conditioner provided in the first aspect.

[0016] In a fourth aspect, the present application provides a computer-readable storage medium, in which computer execution instructions are stored. When the computer execution instructions are executed, they are used to implement the communication line optimization layout method of the multi-split air conditioner provided in the first aspect.

[0017] In a fifth aspect, the present application provides a program product, the program product comprising computer executable instructions. When the computer executable instructions are executed, the communication line optimization arrangement method of the multi-split air conditioner provided in the first aspect is implemented.

[0018] The embodiments of the present application provide a method, device, equipment and medium for optimizing the layout of communication lines of a multi-split air conditioner. According to the spatial position data of the indoor and outdoor units in the multi-split air conditioner, the spatial position connectivity graph of the indoor and outdoor units and the installation length of the communication line between any two nodes in the spatial position connectivity graph are determined, and according to the installation length of the communication line, the minimum spanning tree corresponding to the spatial position connectivity graph is determined. The installation length of the communication line between the indoor and outdoor units in the multi-split air conditioner corresponding to the minimum spanning tree is the shortest communication line length in the spatial position connectivity graph, ensuring that the installation cost of the multi-split air conditioner is minimized. Furthermore, by ensuring that the installation length of the communication line between the outdoor unit and the indoor unit with the farthest spatial position in the spatial position connectivity graph is not greater than a preset value, the reliability of the communication signals of all indoor and outdoor units in the multi-split air conditioner is ensured. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art 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 the structures shown in these drawings without paying any creative work.

[0020] Figure 1 A schematic diagram of the structure of the connection between the indoor unit and the outdoor unit in the multi-split air conditioner provided in the embodiment of the present application;

[0021] Figure 2A flow chart of a method for optimizing the arrangement of communication lines of a multi-split air conditioner provided in Embodiment 1 of the present application;

[0022] Figure 3 A schematic diagram of the spatial position connectivity diagram of the indoor and outdoor units in a multi-split air conditioner provided in an embodiment of the present application;

[0023] Figure 4 A schematic diagram of a minimum spanning tree corresponding to a spatial position connectivity graph provided in an embodiment of the present application;

[0024] Figure 5 A flow chart of a method for optimizing the arrangement of communication lines of a multi-split air conditioner provided in Embodiment 2 of the present application;

[0025] Figure 6 A schematic diagram of a spatial position connectivity diagram including an external unit and a target internal unit provided in an embodiment of the present application;

[0026] Figure 7 A schematic diagram of the structure of a communication line optimization arrangement device for a multi-split air conditioner provided in an embodiment of the present application;

[0027] Figure 8 A schematic diagram of the structure of an electronic device provided in an embodiment of the present application.

[0028] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only 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.

[0030] It should be noted that all directional indications in the embodiments of the present application (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0031] In addition, descriptions such as “first”, “second”, etc. in this application are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features.

[0032] In addition, the technical solutions between the various embodiments of the present application can be combined with each other, but it must be based on the fact that ordinary technicians in the field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0033] Multi-split central air conditioner is a type of user central air conditioner, commonly known as "one to many", which refers to a primary refrigerant air conditioning system in which one outdoor unit is connected to two or more indoor units through piping, with air cooling heat exchange on the outdoor side and direct evaporation heat exchange on the indoor side. Multi-split systems are increasingly widely used in small and medium-sized buildings and some public buildings.

[0034] In order to realize the control interaction between the indoor and outdoor units of a multi-split air conditioner, a communication line needs to be connected between the outdoor and indoor units to complete the signal transmission. In the related art, during the actual installation of a multi-split air conditioner, the installer usually connects the indoor and outdoor units according to the positions of the indoor and outdoor units of the multi-split air conditioner based on experience. It is difficult for the installer to optimize the wiring design of the indoor and outdoor units, so the use of communication wires will increase, thereby increasing the installation cost. At the same time, when the communication line is too long, it is easy to cause poor signal reception in some indoor units, which further leads to problems such as rework delays or abnormal operation of the unit.

[0035] In view of this, the embodiments of the present application provide a method, device, equipment and medium for optimizing the layout of communication lines of a multi-split air conditioner. The method obtains the spatial position data of the indoor and outdoor units in the multi-split air conditioner from the building installation drawings or the building information modeling system (Building Information Modeling System, BIMS for short), and obtains the installation length of the communication line between any two units. The any two units can be an indoor unit and an indoor unit, or an indoor unit and an outdoor unit. After determining the position of the outdoor unit, the minimum spanning tree of the indoor unit communication line is obtained based on the minimum spanning tree search algorithm, and the indoor unit communication line is connected according to the minimum spanning tree. This is the installation method that minimizes the amount of wire material used for the communication lines of the multi-split system, thereby reducing the installation cost of the system.

[0036] Furthermore, it is ensured that the longest communication line length from the external unit to the farthest internal unit is lower than a specific value, so that the attenuation of the transmission signal is lower than the upper limit of the reliable operation of the unit, thereby solving the problem of installation rework or abnormal actual operation of the unit caused by poor signal transmission in the related technology.

[0037] Figure 1 This is a schematic diagram of the structure of the connection between the internal and external units of a multi-split air conditioner provided in the embodiment of the present application. Figure 1As shown, the multi-split air conditioner 100 provided in this embodiment includes: an external unit 101 and an internal unit 102. The internal unit may also be referred to as an indoor unit, the external unit may also be referred to as an outdoor unit, and the internal unit 102 may include multiple internal units. The embodiment of the present application does not limit the number of the internal units 102.

[0038] For a multi-split air conditioner, one outdoor unit 101 can be connected to two or more indoor units 102 through piping. The outdoor unit 101 and the indoor unit 102 are connected through network layer communication to ensure signal transmission between the indoor unit 102 and the outdoor unit 101.

[0039] Those skilled in the art will appreciate that there are many ways to connect the external unit 101 and the internal unit 102 in a multi-split air conditioner. Figure 1 The communication connection mode between the outdoor unit 101 and the indoor unit 102 shown in the figure is only an arbitrary one, which is used to represent the relationship between the indoor unit and the outdoor unit in the multi-split air conditioner.

[0040] Therefore, it should be noted that the embodiment of the present application does not limit the connection method between the outdoor unit 101 and the indoor unit 102 in the multi-split air conditioner, i.e. serial and / or parallel, as long as it ensures that the communication signal between the outdoor unit 101 and the indoor unit 102 can be transmitted normally.

[0041] Combine the following Figure 1 , a method for optimizing the arrangement of communication lines of a multi-split air conditioner provided in an embodiment of the present application is described in detail. The indoor unit and outdoor unit mentioned in the following embodiment are Figure 1 Indoor and outdoor units shown.

[0042] Figure 2 This is a flow chart of the method for optimizing the arrangement of communication lines of a multi-split air conditioner provided in Example 1 of the present application. Figure 2 As shown, the communication line optimization arrangement method of the multi-split air conditioner includes the following steps:

[0043] S201, obtaining the spatial position data of the indoor unit and the spatial position data of the outdoor unit.

[0044] The spatial position data of the indoor and outdoor units in a multi-split air conditioner are the spatial two-dimensional position coordinates corresponding to the indoor and outdoor units, respectively, and are used to indicate the specific installation positions of the indoor and outdoor units.

[0045] Acquisition of spatial position data corresponding to the indoor and outdoor units in a multi-split air conditioner can be achieved in a variety of ways. In one possible implementation, the spatial position data of the indoor unit and the spatial position data of the outdoor unit can be obtained from the building installation drawings and\or BIMS. Exemplarily, the two-dimensional position coordinates corresponding to the outdoor unit and each indoor unit can be obtained from the building installation drawings, or the spatial three-dimensional position coordinates corresponding to the outdoor unit and each indoor unit can be obtained from the BIMS, and the spatial three-dimensional position coordinates can be converted into two-dimensional position coordinates.

[0046] S202, determining a spatial position connectivity graph of the indoor unit and the outdoor unit according to the spatial position data of the indoor unit and the spatial position data of the outdoor unit, wherein the spatial position connectivity graph includes nodes corresponding to the indoor unit and the outdoor unit.

[0047] Optionally, the spatial position connectivity diagram of the indoor and outdoor units is a connection diagram obtained by connecting the indoor and outdoor units in sequence according to the spatial position coordinates of the indoor unit and the spatial position coordinates of the outdoor unit. Specifically, the spatial position connectivity diagram may include multiple spanning trees for connecting the indoor and outdoor units, and the lengths of the communication lines corresponding to different spanning trees may be different or the same. That is, when the number of indoor and outdoor units is determined, the spatial position connectivity diagram of the same indoor and outdoor units may include a variety of different connection methods. It is understandable that the embodiment of the present application does not limit the specific connection method between the indoor and outdoor units, as long as communication connection can be achieved between all indoor and outdoor units. Exemplarily, the first spatial position connectivity diagram of the indoor and outdoor units includes the length of the communication line between any two units. It should be noted that the length of the communication line between any two units is the actual length required according to the actual installation requirements, rather than the spatial distance calculated based on the position coordinates of the two units.

[0048] Figure 3 This is a schematic diagram of the spatial position connection diagram of the indoor and outdoor units in the multi-split air conditioner provided in the embodiment of the present application. Figure 3 As shown, black dots represent multi-split air conditioner outdoor nodes, gray dots represent multi-split air conditioner indoor nodes, and the lines between the nodes are signal communication lines. It can be understood that the embodiment of the present application does not limit the number of indoor units.

[0049] like Figure 3As shown, a spatial position connectivity graph of the indoor and outdoor units in a multi-split air conditioner is generated by creating lines between nodes. The lines between any two nodes in the spatial position connectivity graph have no direction. Therefore, the spatial position connectivity graph can also be called an undirected graph. Among them, the value of the connecting line between any two nodes is called the weight of each edge in the spatial position connectivity graph, and the weight is used to represent the length of the communication line between any two nodes in space. Exemplarily, it can be expressed as w(u,v), where w represents the size of the weight, and u and v represent any two nodes. Specifically, the unit of the weight can be meter. As Figure 3 As shown in , the weight of each edge can be 18 meters, 9 meters, 4 meters, 2 meters, 1 meter, and so on.

[0050] It should be noted that the embodiment of the present application does not limit the specific connection method between the indoor unit and the outdoor unit in the spatial position connectivity diagram, as long as the communication signal transmission between the indoor unit and the outdoor unit is not affected.

[0051] S203, determining the installation length of the communication line between any two nodes in the first spatial position connectivity graph.

[0052] The installation length of the communication line can be understood as the length of the communication line required between any two nodes in the actual installation process of the multi-split air conditioner. For example, any two nodes can be an indoor unit and an indoor unit, or an indoor unit and an outdoor unit.

[0053] According to the position coordinates of any two nodes in the spatial position connection and the requirements to be met by the actual communication line installation, the installation length of the communication line between any two nodes is measured and calculated. It can be understood by those skilled in the art that in actual installation, the communication line is generally located in the corner, but this application does not limit it and can also be installed according to actual needs.

[0054] In a possible implementation, the BIMS system can calculate the installation length of the communication line between any two nodes based on the three-dimensional spatial position coordinates between any two nodes. Exemplarily, the installation length of the communication line between any two nodes is not less than the spatial straight-line distance between the two nodes.

[0055] S204, determining a minimum spanning tree corresponding to the spatial position connectivity graph according to the communication line installation length, the minimum spanning tree being used to indicate a communication line connection mode between the indoor unit and the outdoor unit corresponding to a communication line installation length that minimizes the communication line installation length.

[0056] It can be understood by those skilled in the art that, for the transmission of communication signals between the indoor unit and the outdoor unit in a multi-split air conditioner, it is only necessary to connect any two units through a communication line to realize the transmission of communication signals, and it is not necessary to connect the outdoor unit and each indoor unit separately through a communication line. Exemplarily, any two units can be an indoor unit and an indoor unit, or an indoor unit and an outdoor unit. Therefore, the spatial position connectivity graph contains a variety of different spanning trees, that is, any one of which can satisfy the connection mode that can transmit signals between the indoor unit and the outdoor unit in the multi-split air conditioner. Specifically, the total communication line installation length corresponding to each spanning tree in the spatial position connectivity graph may be the same or different, and the spanning tree with the smallest total communication line installation length is called the minimum spanning tree. Among them, the total communication line installation length corresponding to each spanning tree is the sum of the communication line installation lengths between all nodes in the spanning tree.

[0057] exist Figure 3 Based on Figure 4 A specific method for determining the minimum spanning tree corresponding to the first spatial position connectivity graph according to the installation length of the communication line is described in detail.

[0058] Figure 4 Schematic diagram of the minimum spanning tree corresponding to the spatial position connectivity graph provided in the embodiment of the present application. Figure 4 As shown, the connection method obtained by connecting the outdoor unit and the indoor unit with black thick lines is the minimum spanning tree corresponding to the spatial position connectivity graph. Connecting the indoor unit and the outdoor unit in the multi-split air conditioner according to the connection method of the minimum spanning tree can ensure that the required communication wire usage is minimized.

[0059] Determine the minimum spanning tree from the spatial location connectivity graph. In a possible implementation, the minimum spanning tree corresponding to the spatial location connectivity graph can be determined based on the installation length of the communication line using a minimum spanning tree search algorithm. Exemplarily, the minimum spanning tree search algorithm includes a Kruskal algorithm and / or a Prim algorithm. Specifically, the minimum spanning tree search algorithm can be used to select a spanning tree with the minimum installation length of the required communication line from a variety of connection methods of the spatial location connectivity graph.

[0060] Kruskal algorithm is a method for solving the minimum spanning tree of a connected network. The basic idea is: suppose a connected network G = (V, E), where V and E represent different vertices in the connected network. Let the initial state of the minimum spanning tree be a non-connected graph T = (V, {}) with only n vertices and no edges, and each vertex in the overview graph is a connected component. Select the edge with the lowest cost in E. If the vertices attached to the edge are on different connected components in T, add this edge to T; otherwise, discard this edge and select the next edge with the lowest cost. And so on, until all vertices in T constitute a connected component. Exemplarily, the Kruskal algorithm is used to select the minimum spanning tree from multiple spanning trees of a spatial position connected graph. The connection method corresponding to the minimum spanning tree is the system connection method with the least communication line usage, that is, the least communication line wire is used when connecting the indoor and outdoor units in a multi-connected air conditioner. Optionally, the installation length of the communication line corresponding to each spanning tree in the spatial position connected graph can be expressed by the following formula:

[0061] W=∑w(u,v)

[0062] Where W represents the installation length of the communication line corresponding to the spanning tree, and w(u,v) represents the installation length of the communication line between any two nodes. Figure 4 It can be seen that the installation length of the communication line corresponding to the minimum spanning tree is W=8+8+7+4+1+3+2+2+3=38 meters.

[0063] Prim's algorithm is an algorithm in graph theory, which can search for a minimum spanning tree in a weighted connected graph. In the embodiment of the present application, Prim's algorithm can also be used to select a minimum spanning tree from multiple spanning trees of a spatial position connected graph. Specifically, the effect of the minimum spanning tree is similar to that obtained by the Kruskal algorithm above, which will not be repeated here.

[0064] It can be understood that the embodiment of the present application illustrates the optimized arrangement of the communication connection method between the indoor and outdoor units in a multi-split air conditioner with only one outdoor unit. This method is also applicable to the optimized arrangement of the communication connection method between the indoor and outdoor units in a multi-split air conditioner with multiple outdoor units.

[0065] It is understandable that in some embodiments, the connection of the indoor drainage pipeline can be determined according to the communication line connection mode corresponding to the minimum spanning tree, thereby reducing the usage of the indoor drainage pipeline and further reducing the installation cost of the multi-split system.

[0066] In this embodiment, the spatial position data of the indoor unit and the spatial position data of the outdoor unit are obtained; the spatial position connectivity graph of the indoor unit and the outdoor unit is determined according to the spatial position data of the indoor unit and the spatial position data of the outdoor unit; the installation length of the communication line between any two nodes in the spatial position connectivity graph is determined; and the minimum spanning tree corresponding to the spatial position connectivity graph is determined according to the installation length of the communication line. This method obtains a system connection mode with the minimum communication line used when the indoor unit and the outdoor unit in the multi-split air conditioner are connected for communication according to the spatial position connectivity graph of the indoor unit and the outdoor unit and the installation length of the communication line, thereby reducing the system installation cost.

[0067] Figure 5 This is a flow chart of the communication line optimization arrangement method of the multi-split air conditioner provided in the second embodiment of the present application. This embodiment is a detailed description of step S202 in the first embodiment. Figure 5 As shown, according to the spatial position data of the indoor unit and the spatial position data of the outdoor unit, determining the spatial position connectivity diagram of the indoor unit and the outdoor unit may specifically include the following steps:

[0068] S501, among the indoor units of the multi-split air conditioner, determine a target indoor unit that is farthest in spatial distance from the outdoor unit.

[0069] During the actual installation of the indoor and outdoor units of the multi-split air-conditioning system, when the communication line used is too long, the signal transmission will be poor, resulting in installation rework or abnormal actual operation of the unit. Therefore, while ensuring that the communication line is used in the shortest amount of wire, it is also necessary to ensure that the transmission signal between the indoor unit and the outdoor unit in the multi-split air conditioner is not affected. In one possible implementation, by ensuring that the transmission signal between the outdoor unit in the multi-split air conditioner and the indoor unit with the largest spatial distance from the outdoor unit is not affected, it can be achieved that the transmission signal between the indoor unit and the outdoor unit in the multi-split air conditioner is not affected. Exemplarily, the indoor unit with the largest spatial distance from the outdoor unit is referred to as the target indoor unit.

[0070] In some embodiments, the target indoor unit may also be determined based on the communication line distance. Exemplarily, the indoor unit with the longest communication line distance to the outdoor unit is determined as the target indoor unit.

[0071] According to the spatial position data of the indoor unit and the outdoor unit in the multi-split air conditioner obtained from the building installation drawings and\or the BIMS system, the spatial position distance between each indoor unit and the outdoor unit is calculated respectively, and the indoor unit with the farthest spatial distance from the outdoor unit is taken as the target indoor unit.

[0072] S502, determining a spatial position connectivity diagram according to the spatial position data of the target indoor unit and the spatial position data of the outdoor unit, wherein the longest installation length of the communication line between the target indoor unit and the outdoor unit in the spatial position connectivity diagram is less than or equal to a preset value.

[0073] The longest communication line installation length of the target indoor unit and outdoor unit in the spatial position connectivity diagram is less than or equal to a preset value. The preset value is the longest communication line installation length that satisfies the communication signal between each unit of the multi-split air conditioner without being affected. For example, the preset value can be 20 meters, 30 meters, 40 meters, etc.

[0074] The method for determining the spatial position connectivity diagram of the target indoor unit and the outdoor unit based on the spatial position data of the target indoor unit and the spatial position data of the outdoor unit is similar to the method described in the first embodiment and will not be repeated here.

[0075] For example, in the spatial position connectivity diagram, the outdoor unit and the target indoor unit can be directly connected for communication, or they can be indirectly connected through other intermediate indoor units. That is, the spanning tree corresponding to the outdoor unit and the target indoor unit can include one communication line installation length, or multiple communication line installation lengths. The specific connection method is determined according to the actual installation position of the outdoor unit and the target indoor unit in the multi-split air conditioner.

[0076] Figure 6 A schematic diagram of a spatial position connection diagram of an external unit and a target internal unit provided in an embodiment of the present application. Figure 6 As shown, the black dot b is the node corresponding to the external machine, and the gray dot is the node corresponding to the internal machine. Specifically, the gray dot a is the node corresponding to the target internal machine, and the gray dots c and d are the nodes corresponding to other internal machines. As can be seen from the figure, the external machine node b and the target internal machine node a can be connected in communication in three different ways, that is, three different spanning trees can be generated between the external machine node b and the target internal machine node a. They are: the external machine node b and the target internal machine node a are directly connected, the external machine node b and the internal machine node c and the target internal machine node a are connected, and the external machine node b and the internal machine node d and the target internal machine node a are connected. The installation lengths of the communication lines corresponding to the three different connection methods are also different, namely 18 meters, 18 meters and 20 meters.

[0077] In one possible implementation, the communication line installation lengths required for different spanning trees corresponding to the external machine node b and the target internal machine node a in the spatial location connectivity diagram and the size of the preset value are determined, and it is determined that the maximum communication line installation length required in the different spanning trees corresponding to the external machine node b and the target internal machine node a in the spatial location connectivity diagram is not greater than the preset value.

[0078] For example, when the preset value is 21 meters, Figure 6 The longest communication line installation length required in the spanning tree corresponding to the foreign machine and the target indoor machine is 19 meters, which meets the requirement that the communication signal is not affected.

[0079] In the spatial position connectivity graph, according to the communication line installation length, a minimum spanning tree search algorithm is used to determine the minimum spanning tree corresponding to the spatial position connectivity graph, and the shortest communication line installation length required between the indoor unit and the outdoor unit in the multi-split air conditioner is obtained. Specifically, the shortest communication line installation length is the sum of the installation lengths of all communication lines in the minimum spanning tree.

[0080] It can be understood that by ensuring that the installation length of the communication line between the outdoor unit and all the indoor units in the spatial position connectivity diagram is less than a preset value, it is ensured that there is no problem of poor transmission signal in the communication line connection method corresponding to the minimum spanning tree of the multi-split air conditioner determined in the spatial position connectivity diagram.

[0081] In this embodiment, a target indoor unit with the largest spatial distance from the outdoor unit is determined among the indoor units of the multi-split air conditioner; a spatial position connectivity diagram is determined based on the spatial position data of the target indoor unit and the spatial position data of the outdoor unit, wherein the longest communication line installation length between the target indoor unit and the outdoor unit in the spatial position connectivity diagram is less than or equal to a preset value. This method ensures the reliability of communication signal transmission between units in the multi-split air conditioner by obtaining a spatial position connectivity diagram containing the maximum communication line installation length between the outdoor unit and the target indoor unit that satisfies signal transmission.

[0082] Figure 7 The schematic diagram of the structure of the communication line optimization arrangement device of the multi-split air conditioner provided in the embodiment of the present application. It should be understood that the communication line optimization arrangement device of the multi-split air conditioner provided in the embodiment of the present application is used to optimize the arrangement of the communication lines of the indoor and outdoor units in the multi-split air conditioner. The specific optimization arrangement of the communication lines can refer to the above embodiment and will not be repeated here.

[0083] like Figure 7 As shown, the communication line optimization arrangement device 700 of the multi-split air conditioner includes: an acquisition module 710, a first determination module 720, a second determination module 730 and a third determination module 740. Specifically, the acquisition module 710 is used to acquire the spatial position data of the indoor unit and the spatial position data of the outdoor unit; the first determination module 720 is used to determine the spatial position connectivity graph of the indoor unit and the outdoor unit according to the spatial position data of the indoor unit and the spatial position data of the outdoor unit, and the spatial position connectivity graph contains nodes corresponding to the indoor unit and the outdoor unit; the second determination module 730 is used to determine the installation length of the communication line between any two nodes in the spatial position connectivity graph; the third determination module 740 is used to determine the minimum spanning tree corresponding to the spatial position connectivity graph according to the installation length of the communication line, and the minimum spanning tree is used to indicate the corresponding communication line connection mode between the indoor unit and the outdoor unit when the installation length of the communication line is minimized.

[0084] In some embodiments, the third determination module 740 is specifically used to: determine the minimum spanning tree corresponding to the first spatial position connectivity graph based on the installation length of the communication line using a minimum spanning tree search algorithm, where the minimum spanning tree search algorithm includes a Kruskal algorithm or a Prim algorithm.

[0085] In some embodiments, the first determination module 720 is specifically used to: determine, among the indoor units of a multi-split air conditioner, a target indoor unit that is spatially farthest from the outdoor unit; determine a spatial position connectivity map based on the spatial position data of the target indoor unit and the spatial position data of the outdoor unit, in which the longest communication line installation length between the target indoor unit and the outdoor unit is less than a preset value.

[0086] In some embodiments, the acquisition module 710 is specifically used to obtain the spatial location data of the indoor unit and the spatial location data of the outdoor unit from the building installation drawings and / or the building information management system.

[0087] In some embodiments, the communication line optimization layout device of the multi-split air conditioner also includes a fourth determination module (not shown), which is used to determine the connection of the indoor unit drainage pipeline according to the communication line connection method corresponding to the minimum spanning tree.

[0088] It should be noted that the acquisition module 710 in the above embodiments may be a software controller in actual implementation, which is used to query information in other devices or application software systems, for example, query spatial location data information of indoor and outdoor units in a multi-split air conditioner stored in a building information management system, etc. The acquisition module 710 may be implemented through a communication port.

[0089] In some optional implementations, the first determination module 720, the second determination module 730, and the third determination module 740 can be implemented in the form of software called by a processing element, or can be implemented in the form of hardware. For example, all determination modules can be a separate processing element, or can be implemented in a chip integrated in the communication line optimization arrangement device 700 of the multi-split air conditioner. In addition, it can also be stored in the form of program code in the storage module of the communication line optimization arrangement device 700 of the multi-split air conditioner, and a processing element of the communication line optimization arrangement device 700 of the multi-split air conditioner can call and execute part or all of the functions of all the above determination modules.

[0090] In addition, all or part of these processing elements can be integrated together or implemented independently. The module here can be an integrated circuit with signal processing capabilities. In the implementation process, each step of the above method or each module above can be completed by an integrated logic circuit of hardware in the processor element or an instruction in the form of software.

[0091] For example, the above modules can be one or more integrated circuits configured to implement the above communication optimization arrangement method of the multi-split air conditioner. For example, one or more application-specific integrated circuits (Application Specific Integrated Circuit, referred to as ASIC), or one or more microprocessors (Digital Signal Processor, referred to as DSP), or one or more field programmable gate arrays (Field Programmable Gate Array, referred to as FPGA), etc. For another example, when a certain module above is implemented in the form of a processing element scheduling program code, the processing element can be the same processor, such as a central processing unit (Central Processing Unit, referred to as CPU) or other processors that can call program codes. For another example, these modules can also be integrated together and implemented in the form of a system on a chip.

[0092] In some embodiments, the present application also provides an electronic device. Figure 8 This is a schematic diagram of the structure of an electronic device provided in an embodiment of the present application. Figure 8 As shown, the electronic device 800 includes: at least one processor 801; and a memory 802 connected to the at least one processor; wherein the memory 802 is used to store computer execution instructions, and the computer execution instructions are executed by the at least one processor 801, so that the at least one processor 801 can execute the communication line optimization layout method of the multi-split air conditioner provided by the above method embodiment.

[0093] In the embodiment of the present application, the memory 802 and the processor 801 are electrically connected directly or indirectly to realize data transmission or interaction. For example, these elements can be electrically connected to each other through one or more communication buses or signal lines. The memory 802 stores computer-executable instructions for implementing the data access control method, including at least one software function module that can be stored in the memory 802 in the form of software or firmware. The processor 801 executes various functional applications and data processing by running the software programs and modules stored in the memory.

[0094] The memory 802 may be, but is not limited to, a random access memory (RAM), a read only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable read-only memory (EEPROM), etc. The memory is used to store programs, and the processor executes the programs after receiving the execution instructions. Furthermore, the software programs and modules in the above-mentioned memory may also include an operating system, which may include various software components and / or drivers for managing system tasks (such as memory management, storage device control, power management, etc.), and may communicate with various hardware or software components to provide an operating environment for other software components.

[0095] The processor 801 may be an integrated circuit chip having the ability to process signals. The processor 801 may be a general-purpose processor, including a central processing unit, a network processor (NP), etc. The methods, steps, and logic diagrams disclosed in the embodiments of the present application may be implemented or executed. The general-purpose processor may be a microprocessor or any conventional processor.

[0096] It should be noted that the electronic device provided in this embodiment can be used to execute the above-mentioned communication line optimization layout method of the multi-split air conditioner. Its specific implementation method and technical effect are similar, and this embodiment will not be repeated here.

[0097] An embodiment of the present application further provides a computer-readable storage medium, in which computer execution instructions are stored. When the computer execution instructions are executed by a processor, they are used to implement the communication line optimization layout method of the multi-split air conditioner in the above method embodiment.

[0098] An embodiment of the present application further provides a computer program product, including a computer program, which, when executed by a processor, is used to implement the communication line optimization layout method of the multi-split air conditioner in the above method embodiment.

[0099] Those of ordinary skill in the art can understand that all or part of the processes in the above-mentioned embodiments can be completed by instructing the relevant hardware through a computer program, and the computer program can be stored in a non-volatile computer-readable storage medium. When the computer program is executed, it can include the processes of the embodiments of the above-mentioned methods. Among them, any reference to memory, storage, database or other media used in the embodiments provided in the present application may include non-volatile and / or volatile memory. Non-volatile memory may include read-only memory (Read-Only Memory, referred to as ROM), programmable ROM (Programmable read-only memory, referred to as PROM), electrically programmable ROM (electrically programmable read-only memory, referred to as EPROM), electrically erasable programmable ROM (electrically erasable programmable read-only memory, referred to as EEPROM) or flash memory. Volatile memory may include random access memory (Random Access Memory, referred to as RAM) or external cache memory. By way of illustration and not limitation, RAM is available in many forms, such as static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate SDRAM (DDRSDRAM), enhanced SDRAM (ESDRAM), synchronous link (Synchlink) DRAM (SLDRAM), memory bus (Rambus) direct RAM (RDRAM), direct memory bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM), etc.

[0100] In the several embodiments provided in the present application, it should be understood that the disclosed devices and methods can be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of units is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0101] So far, the technical solutions of the present application have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present application is obviously not limited to these specific embodiments. Without departing from the principles of the present application, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present application.

Claims

1. A method for optimizing the layout of communication lines of a multi-split air conditioner, characterized in that: The multi-split air conditioner includes an indoor unit and an outdoor unit, and the communication line optimization arrangement method of the multi-split air conditioner includes: Acquiring spatial position data of the indoor unit and spatial position data of the outdoor unit; Determine a spatial position connectivity graph of the indoor unit and the outdoor unit according to the spatial position data of the indoor unit and the spatial position data of the outdoor unit, wherein the spatial position connectivity graph includes nodes corresponding to the indoor unit and the outdoor unit; Determine the installation length of the communication line between any two nodes in the spatial position connectivity graph; Determine a minimum spanning tree corresponding to the spatial position connectivity graph according to the installation length of the communication line, wherein the minimum spanning tree is used to indicate a communication line connection mode between the indoor unit and the outdoor unit corresponding to a condition that minimizes the installation length of the communication line; The determining of the spatial position connectivity diagram of the indoor unit and the outdoor unit according to the spatial position data of the indoor unit and the spatial position data of the outdoor unit comprises: Among the indoor units of the multi-split air conditioner, determining a target indoor unit that is farthest in spatial distance from the outdoor unit; The spatial position connectivity diagram is determined based on the spatial position data of the target indoor unit and the spatial position data of the outdoor unit, wherein the longest communication line installation length between the target indoor unit and the outdoor unit in the spatial position connectivity diagram is less than or equal to a preset value.

2. The communication line optimization layout method of a multi-split air conditioner according to claim 1 is characterized in that: Determining the minimum spanning tree corresponding to the spatial position connectivity graph according to the installed length of the communication line includes: Based on the installation length of the communication line, a minimum spanning tree search algorithm is used to determine the minimum spanning tree corresponding to the spatial position connectivity graph, and the minimum spanning tree search algorithm includes a Kruskal algorithm or a Prim algorithm.

3. The communication line optimization layout method of a multi-split air conditioner according to claim 1 or 2, characterized in that: The acquiring the spatial position data of the indoor unit and the spatial position data of the outdoor unit comprises: The spatial position data of the indoor unit and the spatial position data of the outdoor unit are obtained from the building installation drawings and / or the building information management system.

4. The method according to any one of claims 1 to 2, characterized in that: Also includes: The connection of the indoor drainage pipeline is determined according to the communication line connection mode corresponding to the minimum spanning tree.

5. A communication line optimization arrangement device for a multi-split air conditioner, characterized in that: The multi-split air conditioner includes an indoor unit and an outdoor unit, and the communication line optimization arrangement device of the multi-split air conditioner includes: An acquisition module, used for acquiring the spatial position data of the indoor unit and the spatial position data of the outdoor unit; A first determining module, configured to determine a spatial position connectivity graph of the indoor unit and the outdoor unit according to the spatial position data of the indoor unit and the spatial position data of the outdoor unit, wherein the spatial position connectivity graph includes nodes corresponding to the indoor unit and the outdoor unit; A second determination module is used to determine the installation length of the communication line between any two nodes in the spatial position connectivity graph; A third determination module is used to determine a minimum spanning tree corresponding to the spatial position connectivity graph according to the installation length of the communication line, wherein the minimum spanning tree is used to indicate a connection mode of the communication line between the indoor unit and the outdoor unit; The first determining module is specifically configured to: Among the indoor units of the multi-split air conditioner, determining a target indoor unit having the largest spatial distance from the outdoor unit; The spatial position connectivity diagram is determined according to the spatial position data of the target indoor unit and the spatial position data of the outdoor unit, wherein the longest installation length of the communication line between the target indoor unit and the outdoor unit in the spatial position connectivity diagram is less than a preset value.

6. The communication line optimization arrangement device for a multi-split air conditioner according to claim 5, characterized in that: The third determination module is specifically used to: Based on the installation length of the communication line, a minimum spanning tree search algorithm is used to determine the minimum spanning tree corresponding to the spatial position connectivity graph, and the minimum spanning tree search algorithm includes a Kruskal algorithm or a Prim algorithm.

7. An electronic device, characterized in that: include: at least one processor; and a memory coupled to the at least one processor; The memory is used to store computer-executable instructions, and the computer-executable instructions are executed by the at least one processor so that the at least one processor can execute the method according to any one of claims 1 to 4.

8. A computer-readable storage medium, wherein a computer program is stored on the computer-readable storage medium, and when the computer program is executed, the method according to any one of claims 1 to 4 is implemented.

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