[0025] The following description and drawings fully illustrate specific embodiments of the present invention to enable those skilled in the art to practice them. Other implementations may include structural, logical, electrical, process, and other changes. The examples only represent possible changes. Unless explicitly required, individual components and functions are optional, and the order of operations can be changed. Parts and features of some embodiments may be included in or substituted for parts and features of other embodiments. The scope of the embodiments of the present invention includes the entire scope of the claims, and all available equivalents of the claims. In this context, these embodiments of the present invention may be individually or collectively denoted by the term "invention", this is only for convenience, and if more than one invention is actually disclosed, it is not intended to automatically limit the application The scope is any single invention or inventive concept.
[0026] figure 1 Shows a schematic flow chart of an air conditioner wireless networking method according to an embodiment of the present invention,
[0027] Such as figure 1 As shown, in some illustrative embodiments, the method includes the following steps:
[0028] Step S101, sending a networking request carrying local parameters;
[0029] In step S102, it is judged whether the response signal of allowing networking feedback from other air conditioners is received; if it is not received, continue to send the networking request; if it is received, then:
[0030] Screening all the response signals that have been received, and selecting the air conditioner to be networked as a child node from the other air conditioners according to the screening result;
[0031] Step S103: Establish a network connection with the air conditioner to be networked.
[0032] In the above embodiment, the air conditioner, as the parent node, wants to find the air conditioner to be networked as the child node. The air conditioner will first send a networking request carrying the parameters of the machine (for example, sending the request by broadcasting, requesting the air conditioner carrying the machine) MAC address), after other air conditioners listen to the request, if the networking is allowed, they will feed back the response signal to the unit. During this process, the unit may receive the response signal from at least one air conditioner, and then these response signals will be filtered , Finally choose the optimal networking method to establish the parent-child node, so as to realize the network connection; the wireless communication method described in this article can be zigbee, wifi, Bluetooth, infrared, etc.;
[0033] Through the method described in this embodiment, the air conditioner can automatically network by wireless, establish parent and child nodes; screen the received response signals, select the network with the best signal for the object, and form a better Path, the general training network after networking has strong scalability and stable communication; it solves the problem that the air conditioner cannot choose the optimal signal path during the networking process due to various factors such as communication time and communication distance. .
[0034] In some demonstrative embodiments, the screening all the response signals that have been received, and determining the air conditioner to be networked according to the screening result, specifically includes:
[0035] From all the response signals that have been received, select the first-level response signal whose signal strength is greater than the preset first threshold;
[0036] Determine whether the number of the first-level response signal is greater than one; if not, the air conditioner sending the first-level response signal is the air conditioner to be networked; otherwise, then:
[0037] From the primary response signals, select secondary response signals whose signal strength is greater than a preset second threshold; wherein, the second threshold is greater than the first threshold;
[0038] According to a preset scheme, the air conditioner to be networked is selected from the air conditioners that send the secondary response signal;
[0039] In the above process, all received response signals are initially screened, and the first-level response signals whose signal strength is greater than the first threshold are screened out. The first threshold is preset. When the signal strength is greater than this value, it indicates The signal strength can meet the basic communication requirements; secondly, determine the number of first-level response signals. If only one, the corresponding air conditioner is the air conditioner to be networked, and a network connection is established with it; if there are more than one, the corresponding air conditioner is connected to it again; All primary response signals are screened, and secondary response signals whose signal strength is greater than the preset second threshold are screened out. Here, the second threshold is greater than the first threshold, so the signal strength of the secondary response signal is greater than that of the primary response signal. It is suitable as the air conditioner to be networked; finally, according to the preset plan, the optimal air conditioner to be networked is selected from these secondary response signals;
[0040] Further, if the first-level response signal is not screened out in the above process, then: continue to send the networking request; if the second-level response signal is not screened out, then: according to the preset scheme, from sending Select the air conditioner to be networked among the air conditioners with the first-level response signal;
[0041] Wherein, the preset scheme includes:
[0042] Determine whether the number of response signals currently to be screened is greater than the preset N; if not, select the air conditioner that sends the response signals to be screened as the air conditioner to be networked; if yes, then: send the to be screened from According to the order of the response speed, the N air conditioners with the fastest response speed are selected as the air conditioners to be networked;
[0043] In some demonstrative embodiments, before the sending the networking request carrying the local parameters, the method further includes:
[0044] Triggering the sending of the networking request when it is powered on for the first time or when it is detected that the air conditioner as a child node is lost or a signal indicating that the networking is successful sent by the air conditioner as the parent node is received;
[0045] After establishing a network connection with the air conditioner to be networked, it further includes:
[0046] Send a networking success signal to inform the network of the air conditioner to be networking successful;
[0047] For example: if the unit is an outdoor unit, it often needs to be networked with the indoor unit when it is powered on for the first time, so the network request will be automatically triggered when the unit is powered on for the first time; or, if the unit is an indoor unit, when the unit is in After receiving the signal of successful networking from its parent node, if the machine needs to find the child nodes as a parent node and establish a parent-child node for networking, it will trigger the sending of a networking request; or, when the machine detects as a parent node When the child node is lost due to a network failure or other reasons, the sending of the networking request is triggered; the above-mentioned method of sending the networking request can be broadcast, multicast or unicast, which is not limited here;
[0048] Through this embodiment, the indoor unit and outdoor unit of the air conditioner can be automatically networked, and the formed network structure is a tree structure; and, when a problem occurs in the child node, the parent node can reselect the child node and establish a connection.
[0049] The following two specific embodiments are used to illustrate how to make the air conditioning unit automatically network to form a tree network through this solution. In this embodiment, the outdoor unit and the indoor unit are involved; among them, the outdoor unit and the indoor unit are not connected to each other, such as figure 2 As shown, the specific process is as follows:
[0050] Step S201, power on the unit;
[0051] Step S202, the outdoor unit sends a networking request;
[0052] In this process, the outdoor unit can send a networking request carrying its MAC address in the form of broadcast;
[0053] Step S203, it is judged whether a response signal is received;
[0054] If the response signal fed back by the indoor unit is received, step S204 is triggered; otherwise, step S202 is executed;
[0055] Step S204: Determine whether the signal strength of each response signal is greater than a preset first threshold, and screen out the first-level response signals that are greater than the first threshold;
[0056] In this process, if the signal strength of all response signals is less than the first threshold, it means that the basic requirements for establishing a network connection are not met, and then continue to perform step S202;
[0057] Step S205: It is judged whether there are more than one first-level response signal;
[0058] If the first-level response signal is unique, the indoor unit corresponding to the first-level response signal establishes a parent-child node, that is, step S210; if there are multiple first-level response signals, step S206 is triggered;
[0059] Step S206: Determine whether the signal strength of each level 1 response signal is greater than a second threshold;
[0060] In this process, the primary response signal that is greater than the second threshold is screened out as the secondary response signal; because the second threshold is greater than the first threshold, the signal strength of the secondary response signal is greater than the primary response signal; In the process, if the secondary response signal is not filtered out, step S209 is triggered;
[0061] Step S207: Determine whether the number of secondary response signals is greater than N; where N is a preset value. For example, an outdoor unit of an air conditioner is preset to only establish a parent-child relationship with at most 3 indoor units at the factory or before networking Node, the value of N is 3; if it is greater than N, go to step S208, otherwise, go to step S210;
[0062] Step S208, selecting N indoor units with the fastest response speed from the response signals, and establishing parent and child nodes;
[0063] The outdoor unit can view the list of received response signals. In addition to displaying the signal strength of the response signal, the list also includes the response speed of each response signal;
[0064] Step S209: Determine whether the number of first-level response signals is greater than N; N is the same as in step S207; if it is greater than N, go to step S208, otherwise, go to step S210;
[0065] Step S210, the outdoor unit establishes a parent-child node with the corresponding indoor unit;
[0066] For example, if the outdoor unit transfers to this step from step S209, that is, the number of first-level response signals is less than N, then all indoor units corresponding to the first-level response signals are used as air conditioners to be networked, and parent and child nodes are established respectively with them; If the outdoor unit is transferred from step S207 to this step, all the indoor units corresponding to the secondary response signals are used as the air conditioners to be networked, and parent and child nodes are established respectively with them;
[0067] In step S211, after the outdoor unit successfully establishes the parent and child nodes, it will send a networking success signal to inform the indoor unit that the network is successful.
[0068] In the above embodiment, the outdoor unit has successfully established parent and child nodes with the indoor unit through this process. The indoor unit can also continue to search for suitable indoor units as child nodes in a similar manner to form a network structure with a tree structure. The specific process Such as image 3 As shown; suppose indoor unit A has established parent-child nodes with outdoor unit, in image 3 Middle and figure 2 The main difference of the embodiment shown in is in step S301 and step S302:
[0069] Step S301, the indoor unit A receives the networking success signal sent by the outdoor unit, and learns that the networking has been successfully established;
[0070] In step S302, the indoor unit A judges whether a parent-child node has been established with the outdoor unit. If so, step S303 is triggered to send a networking request; if not, the current default networking state is maintained; the steps after step S303 are the same as those after step S303. figure 2 The corresponding steps are similar to that of selecting the optimal networking method for networking.
[0071] Figure 4 Shows a structural block diagram of an air conditioner wireless networking device 400 according to an embodiment of the present invention,
[0072] In some demonstrative embodiments, the apparatus 400 includes:
[0073] The request unit 401 is configured to send a networking request carrying local parameters;
[0074] The first judging unit 402 is used to judge whether a response signal for allowing networking feedback from other air conditioners is received; if not, the requesting unit 401 continues to send the networking request; if it is received, then:
[0075] The screening unit 403 is configured to screen all the response signals that have been received, and select the air conditioner to be networked as a child node from the other air conditioners according to the screening result;
[0076] The networking unit 404 is configured to establish a network connection with the air conditioner to be networked.
[0077] In some demonstrative embodiments, the screening unit 403 specifically includes:
[0078] The first screening subunit 4031 is configured to screen out the first-level response signals whose signal strength is greater than a preset first threshold from all the response signals that have been received;
[0079] The second screening sub-unit 4032 is used to determine whether the number of the first-level response signal is greater than one; if not, the air conditioner sending the first-level response signal is the air conditioner to be networked; otherwise, then:
[0080] The third screening subunit 4033 is configured to screen out the second-level response signals whose signal strength is greater than a preset second threshold from the first-level response signals; wherein, the second threshold is greater than the first threshold;
[0081] The fourth screening subunit 4034 is configured to select the air conditioner to be networked from the air conditioners that send the secondary response signal according to a preset scheme.
[0082] In some demonstrative embodiments, if the first screening sub-unit 4031 does not screen out the first-level response signal, then: the request unit 401 continues to send the networking request; if the third screening sub-unit 4031 The unit 4033 does not screen out the secondary response signal, then: the fourth screening subunit 4034 selects the air conditioner to be networked from the air conditioners that send the primary response signal according to the preset scheme.
[0083] In some illustrative embodiments, the preset scheme includes:
[0084] The fourth screening subunit 4034 determines whether the number of response signals currently to be screened is greater than the preset N; if not, selects the air conditioner that sends the response signals to be screened as the air conditioner to be networked; if yes, Then: from the air conditioners that send the response signals to be screened, according to the order of response speed, select N air conditioners with the fastest response speed as the air conditioners to be networked.
[0085] In some demonstrative embodiments, the apparatus 400 further includes:
[0086] The trigger unit 405 is used to indicate that the request unit 401 sends the networking request carrying the local parameters before powering on for the first time or detects the loss of the air conditioner as a child node or receives a network indication sent by the air conditioner as the parent node When the signal is successful, trigger the request unit 401 to send the networking request;
[0087] The notification unit 406 is configured to, after establishing a network connection with the air conditioner to be networked, send a networking success signal to notify the air conditioner to be networked that the network is successful.
[0088] With the above embodiments, the following effects can be achieved:
[0089] Through wireless, automatic networking, establish parent-child nodes, and form a tree structure network;
[0090] Automatically select the object of the network with the best signal to form a better path. The general training network after the network has strong scalability and stable communication;
[0091] When there is a problem with the child node, the parent node can reselect the child node and establish a connection.
[0092] Those skilled in the art should also understand that the various illustrative logical blocks, modules, circuits, and algorithm steps described in conjunction with the embodiments herein can all be implemented as electronic hardware, computer software, or a combination thereof. In order to clearly illustrate the interchangeability between hardware and software, various illustrative components, blocks, modules, circuits, and steps are described above generally around their functions. As for whether this function is implemented as hardware or as software, it depends on the specific application and the design constraints imposed on the entire system. Skilled technicians can implement the described functions in a flexible manner for each specific application, but this implementation decision should not be interpreted as a departure from the protection scope of the present disclosure.
[0093] The above are only preferred embodiments of the present invention and are not used to limit the present invention. For those skilled in the art, the present invention can have various modifications and changes. Any modification, equivalent replacement, improvement, etc., made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.
