Air conditioner maintenance terminal and multi-split air conditioning system

Abstract

The invention discloses an air conditioner maintenance terminal and a multi-split air conditioning system, and the air conditioner maintenance terminal comprises a terminal Bluetooth module which is used for carrying out Bluetooth communication with air conditioning equipment and receiving a Bluetooth broadcast signal sent by the air conditioning equipment; the terminal control module is configured to receive the Bluetooth broadcast signal sent by the terminal Bluetooth module, analyze the received Bluetooth broadcast signal, obtain RSSI information in the Bluetooth broadcast signal and calculate the distance between the terminal control module and the air conditioner equipment according to the analyzed RSSI information; and when the distance between the air conditioner and the air conditioner is smaller than a preset distance threshold value, the air conditioner is positioned according to the distance between the air conditioner and the air conditioner. According to the air conditioner maintenance terminal and the multi-split air conditioner system, quick positioning of the air conditioner equipment is achieved, new hardware does not need to be added to the air conditioner equipment, only the WIFI module and the Bluetooth module existing on the air conditioner equipment are utilized, the positioning cost is reduced, and the technical problem that in the prior art, the positioning cost of the air conditioner equipment is high is solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of air conditioning technology, in particular to an air conditioner maintenance terminal and a multi-connected air conditioning system. BACKGROUND

[0002] At present, the development of intelligent air conditioning systems is in full swing. Not only do air conditioner users have increasingly high demands for the intelligence of air conditioner products, but air conditioner maintenance service personnel also have increasingly high requirements for the intelligence of air conditioner products, especially how to quickly find the target air conditioner among hundreds of air conditioners.

[0003] At present, commercial central air conditioning systems are very popular, especially in large commercial places such as shopping malls, office buildings, and hospitals. At the same time, with the popularization and development of the intelligence and digitization of central air conditioning systems, many central air conditioning systems have begun to have functions such as fault alarm diagnosis.

[0004] However, a general large central air conditioning system will have many indoor units and outdoor units, with as few as 100 units and as many as several hundred units. Even if it is found in advance that a certain indoor or outdoor unit may have a problem, it is very difficult to quickly find this air conditioner, which greatly increases the workload of central air conditioning system maintenance and reduces the efficiency of service and maintenance.

[0005] However, the existing central air conditioning system generally does not have an indoor positioning function. When a certain air conditioner is found to have a possible fault and needs to be repaired, it can only be searched according to the configuration table during installation. However, for a shopping mall or a large office building, when there are dozens or hundreds of air conditioners in one place, it is very difficult for maintenance personnel to find them, and they can only check them one by one.

[0006] The existing indoor positioning UWB technology is not very mature, and its application cost is too high, but the resulting benefit is not high, the cost performance is low, and it is not suitable for use in central air conditioning systems. If UWB technology is to be applied, it must be used in newly developed central air conditioning systems, which requires the addition of new hardware modules in the central air conditioning system and the development of new hardware circuits and structures, which will also increase the cost of the central air conditioning system. The use of existing UWB technology cannot solve the rapid positioning of air conditioning systems already in use in the market. It is very difficult to modify the existing central air conditioning system using this technology because it requires modification of the original air conditioner hardware and structure.

[0007] Therefore, the UWB technology has a high cost and cannot be widely used in central air conditioning systems, so there is an urgent need for a new central air conditioning system rapid positioning technology that is low in cost and suitable for modification of existing central air conditioning systems. SUMMARY

[0008] The air conditioner maintenance terminal provided by the present application solves the technical problem of high cost of air conditioner equipment positioning in the prior art.

[0009] To achieve the above object, the application adopts the following technical scheme:

[0010] The application provides an air conditioner maintenance terminal, comprising:

[0011] A terminal Bluetooth module is configured to communicate with the air conditioner device via Bluetooth and receive a Bluetooth broadcast signal sent by the air conditioner device.

[0012] A terminal control module is configured to receive the Bluetooth broadcast signal sent by the terminal Bluetooth module, analyze the received Bluetooth broadcast signal, obtain RSSI information in the Bluetooth broadcast signal, calculate the distance to the air conditioner device according to the analyzed RSSI information, and position the air conditioner device according to the distance to the air conditioner device when the distance to the air conditioner device is below a preset distance threshold.

[0013] In some embodiments of the application, when the distance to the air conditioner device is below the preset distance threshold, the air conditioner device is positioned according to the distance to the air conditioner device, specifically including:

[0014] When the terminal control module calculates that the distance to the air conditioner device is below the preset distance threshold, the terminal Bluetooth module is controlled to bind with the air conditioner device via Bluetooth, and an action instruction is sent to the air conditioner device via the terminal Bluetooth module.

[0015] In some embodiments of the application, the action instruction includes one or more of a power-on / off instruction, a wind volume switching instruction, and a swing switching instruction.

[0016] In some embodiments of the application, the air conditioner maintenance terminal further comprises:

[0017] A terminal upgrade module is configured to receive upgrade data and upgrade the terminal control module according to the received upgrade data.

[0018] A multi-split air conditioner system comprises:

[0019] An air conditioner device is configured to send a Bluetooth broadcast signal after receiving a start positioning signal.

[0020] An air conditioner maintenance terminal is configured to analyze a received Bluetooth broadcast signal, obtain RSSI information in the Bluetooth broadcast signal, calculate the distance to the air conditioner device according to the analyzed RSSI information, and position the air conditioner device according to the distance to the air conditioner device when the distance to the air conditioner device is below a preset distance threshold.

[0021] In some embodiments of the present application, when the distance to the air conditioning equipment reaches below the preset distance threshold, the air conditioning equipment is positioned according to the distance to the air conditioning equipment, specifically including:

[0022] When the distance to the air conditioning equipment is calculated to be below the preset distance threshold, the air conditioning maintenance terminal is bound with the air conditioning equipment through Bluetooth, and sends an action instruction to the air conditioning equipment through Bluetooth communication.

[0023] In some embodiments of the present application, the action instruction includes one or more of a power-on / off instruction, a switching air volume instruction, and a switching swing instruction.

[0024] In some embodiments of the present application, the air conditioning equipment includes:

[0025] The air conditioner WIFI module is used for communicating with the cloud server and receiving a start positioning signal sent by the cloud server;

[0026] The air conditioner Bluetooth module is used for Bluetooth communication with the air conditioning maintenance terminal;

[0027] The air conditioner main control module is configured to receive the start positioning signal sent by the air conditioner WIFI module, and after receiving the start positioning signal, control the air conditioner Bluetooth module to send a Bluetooth broadcast signal.

[0028] In some embodiments of the present application, the air conditioner Bluetooth module is in a closed state after the network is configured;

[0029] After receiving the start positioning signal, the air conditioner main control module controls the air conditioner Bluetooth module to start and send a Bluetooth broadcast signal.

[0030] In some embodiments of the present application, the air conditioning equipment further includes:

[0031] The air conditioner upgrade module is used for controlling the air conditioner WiFi module to download upgrade data from the cloud server, and upgrading the air conditioner main control module according to the upgrade data.

[0032] The technical scheme of the present application has the following technical effects relative to the prior art: the air conditioner maintenance terminal and the multi-connected air conditioner system of the present application, after receiving the Bluetooth broadcast signal sent by the air conditioner device, the air conditioner maintenance terminal analyzes the received Bluetooth broadcast signal, obtains the RSSI information in the Bluetooth broadcast signal, and calculates the distance from the air conditioner device according to the analyzed RSSI information; when the distance from the air conditioner device is below the preset distance threshold, the air conditioner device is positioned according to the distance from the air conditioner device. Therefore, the air conditioner maintenance terminal and the multi-connected air conditioner system of the present application realize the rapid positioning of the air conditioner device, do not need to increase new hardware on the air conditioner device, only use the existing WIFI module and Bluetooth module on the air conditioner device, reduce the positioning cost, and solve the technical problem of high positioning cost of the air conditioner device in the prior art.

[0033] Other features and advantages of the present application will become more apparent after reading the detailed description of the application in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0034] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0035] Figure 1 The structural block diagram of an embodiment of the multi-connected air conditioner system of the present application;

[0036] Figure 2 The structural block diagram of another embodiment of the multi-connected air conditioner system of the present application;

[0037] Figure 3 The flowchart of an embodiment of the steps performed by the multi-connected air conditioner system;

[0038] Figure 4 The flowchart of another embodiment of the steps performed by the multi-connected air conditioner system;

[0039] Figure 5 The structural block diagram of an embodiment of the air conditioner device;

[0040] Figure 6 The structural block diagram of another embodiment of the air conditioner device;

[0041] Figure 7 The flowchart of an embodiment of the upgrading process of the air conditioner device;

[0042] Figure 8 The flowchart of an embodiment of the working process of the air conditioner device;

[0043] Figure 9 a flow chart of an embodiment of the working process of the air conditioner maintenance terminal;

[0044] Figure 10 a structural block diagram of an embodiment of the air conditioner maintenance terminal of the present application;

[0045] Figure 11 a structural block diagram of another embodiment of the air conditioner maintenance terminal of the present application;

[0046] Figure 12 a flow chart of an embodiment of the upgrading process of the air conditioner maintenance terminal of the present application. DETAILED DESCRIPTION

[0047] The technical solutions in the embodiments of the present application will be clearly and completely described in connection with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, but not all the embodiments of the present application. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0048] In the description of the present application, it should be understood that the terms "center", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only used to facilitate the description of the present application and simplify the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0049] The terms "first", "second" are only for descriptive purpose, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, unless otherwise specified, "a plurality of" means two or more.

[0050] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integral connection; it can be mechanical connection, or electrical connection; it can be direct connection, or indirect connection through intermediate medium, or internal communication of two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0051] In the present invention, unless explicitly specified and limited, a first feature "on" or "under" a second feature can include that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact through another feature between them. Also, the first feature "on", "above" and "over" the second feature includes that the first feature is directly above and obliquely above the second feature, or simply means that the first feature is higher in horizontal level than the second feature. The first feature "under", "below" and "underneath" the second feature includes that the first feature is directly below and obliquely below the second feature, or simply means that the first feature is lower in horizontal level than the second feature.

[0052] The following disclosure provides many different embodiments, or examples, for implementing different structures of the present invention. For the purpose of simplification, the elements and arrangements of the specific examples are described in the following. Of course, they are only examples, and the purpose is not to limit the present invention. In addition, the present invention can repeatedly refer to numerals and / or reference letters in different examples, and such repetition is for the purpose of simplification and clarity, which does not itself indicate the relationship between the various embodiments and / or arrangements discussed. In addition, the present invention provides examples of various specific processes and materials, but those of ordinary skill in the art can realize the application of other processes and / or the use of other materials.

[0053] An air conditioner performs a refrigeration cycle and a heating cycle of the air conditioner by using a compressor, a condenser, an expansion valve, and an evaporator, and performs control by a controller, achieves flow control of refrigerant and opening degree control of the expansion valve, etc. The refrigeration cycle and the heating cycle include a series of processes involving compression, condensation, expansion, and evaporation, and supply refrigerant to air that has been adjusted and heat-exchanged.

[0054] The compressor compresses refrigerant gas in a high-temperature and high-pressure state and discharges the compressed refrigerant gas. The discharged refrigerant gas flows into the condenser. The condenser condenses the compressed refrigerant into a liquid phase, and heat is released to the surrounding environment through the condensation process.

[0055] The expansion valve expands the high-temperature and high-pressure state liquid phase refrigerant condensed in the condenser into a low-pressure liquid phase refrigerant. The evaporator evaporates the refrigerant expanded in the expansion valve and returns the refrigerant gas in a low-temperature and low-pressure state to the compressor. The evaporator can achieve a refrigeration effect by exchanging heat with a material to be cooled using latent heat of evaporation of the refrigerant. Throughout the cycle, the air conditioner can adjust the temperature of the indoor space.

[0056] The air conditioner outdoor unit refers to the part of the refrigeration cycle including the compressor and the outdoor heat exchanger, the air conditioner indoor unit includes the indoor heat exchanger, and the expansion valve can be provided in the air conditioner outdoor unit or the indoor unit.

[0057] The indoor heat exchanger and the outdoor heat exchanger are used as a condenser or an evaporator. When the indoor heat exchanger is used as a condenser, the air conditioner is used as a heater in a heating mode, and when the indoor heat exchanger is used as an evaporator, the air conditioner is used as a cooler in a cooling mode.

[0058] Embodiment one,

[0059] The multi-split air conditioning system of the embodiment comprises an air conditioner maintenance terminal and a plurality of air conditioning devices, as shown in Figure 1

[0060] The air conditioning device can communicate with the cloud server and the air conditioner maintenance terminal. The air conditioning device refers to an indoor unit or an outdoor unit, as shown in Figure 2

[0061] The air conditioning device sends a Bluetooth broadcast signal after receiving a start positioning signal.

[0062] The air conditioner maintenance terminal analyzes the received Bluetooth broadcast signal after receiving the Bluetooth broadcast signal sent by the air conditioning device, obtains the RSSI information in the Bluetooth broadcast signal, calculates the distance from the air conditioning device according to the analyzed RSSI information, and positions the air conditioning device according to the distance from the air conditioning device when the distance from the air conditioning device is below a preset distance threshold.

[0063] The air conditioner maintenance terminal calculates the distance from the air conditioning device according to the RSSI information in the Bluetooth broadcast signal after receiving the Bluetooth broadcast signal sent by the air conditioning device, and positions the air conditioning device according to the distance from the air conditioning device when the distance from the air conditioning device is less than a preset distance threshold.

[0064] Therefore, the multi-split air conditioning system performs the following steps, as shown in Figure 3

[0065] The air conditioning device has a WIFI module and a Bluetooth module.

[0066] Step S11: After the air conditioning device fails, a fault alarm signal is sent to the cloud server.

[0067] Step S12: The cloud server sends a start positioning signal to the air conditioning device after receiving the fault alarm signal.

[0068] Step S13: The air conditioning device periodically sends a Bluetooth broadcast signal after receiving the start positioning signal.

[0069] The Bluetooth broadcast signal includes an air conditioner ID (a unique identification number of the air conditioning device) and RSSI information (Bluetooth signal strength information).

[0070] ​​​Step S14: After receiving the Bluetooth broadcast signal sent by the air conditioning device, the air conditioning maintenance terminal calculates the distance from the air conditioning device according to the RSSI information in the Bluetooth broadcast signal.

[0071] Step S15: When the distance between the air conditioning maintenance terminal and the air conditioning device is below the preset distance threshold, the air conditioning maintenance terminal locates the air conditioning device according to the distance from the air conditioning device.

[0072] The air conditioning maintenance terminal can quickly locate the air conditioning device according to the distance from the air conditioning device.

[0073] The multi-split air conditioning system of the embodiment sends a Bluetooth broadcast signal after receiving a start positioning signal; the air conditioning maintenance terminal receives the Bluetooth broadcast signal sent by the air conditioning device, analyzes the received Bluetooth broadcast signal, obtains the RSSI information in the Bluetooth broadcast signal, calculates the distance from the air conditioning device according to the analyzed RSSI information, and locates the air conditioning device according to the distance from the air conditioning device when the distance from the air conditioning device is below the preset distance threshold. Therefore, the multi-split air conditioning system of the embodiment uses the air conditioning maintenance terminal to quickly locate the air conditioning device, does not need to add new hardware to the air conditioning device, only uses the existing WIFI module and Bluetooth module on the air conditioning device, reduces the positioning cost, and solves the technical problem of high positioning cost of the air conditioning device in the prior art.

[0074] The multi-split air conditioning system of the embodiment can quickly locate the indoor unit and the outdoor unit, which is convenient for maintenance personnel to quickly find the faulty indoor unit or outdoor unit and improves the maintenance efficiency.

[0075] The multi-split air conditioning system of the embodiment is a central air conditioning system that quickly locates the indoor unit and the outdoor unit based on Bluetooth technology.

[0076] The indoor unit and the outdoor unit are both configured with WIFI modules to connect to a cloud server to provide more intelligent services. At the same time, the WIFI modules generally support Bluetooth-based network configuration operation, so the indoor unit and the outdoor unit already have Bluetooth modules. Therefore, the application quickly locates the indoor unit and the outdoor unit, does not increase the hardware cost of the existing air conditioning system, and only needs to upgrade the related software, so it can be used for newly produced air conditioning systems and can upgrade the existing inventory air conditioning systems at low cost, thereby greatly reducing the maintenance cost of the air conditioning system, improving the service and maintenance efficiency, and increasing the market competitiveness.

[0077] The multi-split air conditioning system of the embodiment includes a plurality of outdoor units, a plurality of indoor units, and an air conditioning maintenance terminal.

[0078] The indoor unit and the outdoor unit send a Bluetooth broadcast signal after receiving a start positioning signal.

[0079] The air conditioner maintenance terminal calculates the distance from the indoor unit / outdoor unit according to the RSSI information in the Bluetooth broadcast signal after receiving the Bluetooth broadcast signal sent by the indoor unit / outdoor unit; and when the distance from the indoor unit / outdoor unit is below a preset distance threshold, the indoor unit / outdoor unit is positioned according to the distance from the indoor unit / outdoor unit, so as to quickly find the target indoor unit / outdoor unit.

[0080] In some embodiments of the present application, when the distance from the air conditioner device is below a preset distance threshold, the air conditioner device is positioned according to the distance from the air conditioner device, specifically including:

[0081] When the air conditioner maintenance terminal calculates that the distance from the air conditioner device is below a preset distance threshold, the air conditioner device is bound by Bluetooth, and an action instruction is sent to the air conditioner device through Bluetooth communication.

[0082] The air conditioner device responding to the action instruction is the air conditioner device to be found by the maintenance personnel, and the maintenance personnel can quickly determine the target air conditioner device.

[0083] Therefore, when the air conditioner maintenance terminal calculates that the distance from the air conditioner device is below a preset distance threshold, the air conditioner device is bound by Bluetooth, and an action instruction is sent to the air conditioner device through Bluetooth communication. The air conditioner device correctly responding to the action instruction is the target air conditioner device, which improves the positioning accuracy and realizes quick and accurate positioning of the target air conditioner device.

[0084] The multi-split air conditioner system specifically performs the following steps, as shown in Figure 4

[0085] Step S21: After the air conditioner device fails, a fault alarm signal is sent to the cloud server.

[0086] Step S22: After receiving the fault alarm signal, the cloud server sends a start positioning signal to the air conditioner device.

[0087] Step S23: After receiving the start positioning signal, the air conditioner device periodically sends a Bluetooth broadcast signal.

[0088] The Bluetooth broadcast signal includes an air conditioner ID (a unique identification number of the air conditioner device) and RSSI information (Bluetooth signal strength information).

[0089] Step S24: After receiving the Bluetooth broadcast signal sent by the air conditioner device, the air conditioner maintenance terminal calculates the distance from the air conditioner device according to the RSSI information in the Bluetooth broadcast signal.

[0090] ​Step S25: When the distance between the air conditioner maintenance terminal and the air conditioner device reaches below the preset distance threshold, the air conditioner device is bound through Bluetooth, and an action instruction is sent to the air conditioner device through Bluetooth communication.

[0091] The air conditioner device responding to the action instruction is the target air conditioner device, and the target air conditioner device is quickly and accurately positioned.

[0092] The target air conditioner device periodically sends a Bluetooth broadcast signal, and the air conditioner maintenance terminal continuously receives the Bluetooth broadcast signal. According to the calculated distance from the target air conditioner device, it can be determined whether the air conditioner maintenance terminal is gradually moving away from or approaching the target air conditioner device. When the distance between the air conditioner maintenance terminal and the target air conditioner device is less than the preset distance threshold (such as 10 meters), the target air conditioner device to be found can be positioned.

[0093] If there are multiple air conditioner devices within the distance of less than the preset distance threshold (such as 10 meters) from the air conditioner maintenance terminal, the air conditioner maintenance terminal binds the target air conditioner device according to the ID information in the Bluetooth broadcast signal, establishes Bluetooth communication, and sends an action instruction to the target air conditioner device through Bluetooth communication. The air conditioner device that responds correctly is the target air conditioner device.

[0094] In some embodiments of the present application, the action instruction includes one or more of a power-on / off instruction, a wind volume switching instruction, and a swing switching instruction.

[0095] After the air conditioner device receives the power-on / off instruction, it performs power-on or power-off, and the action changes obviously, which is convenient for maintenance personnel to locate.

[0096] After the air conditioner device receives the wind volume switching instruction, it performs wind volume switching, and the action changes obviously, which is convenient for maintenance personnel to locate.

[0097] After the air conditioner device receives the swing switching instruction, it performs swing switching, and the action changes obviously, which is convenient for maintenance personnel to locate.

[0098] The air conditioner maintenance terminal sends a power-on / off instruction, a wind volume switching instruction, or a swing switching instruction to the air conditioner device, and the action of the air conditioner device changes obviously when it responds to the instruction, which is convenient for maintenance personnel to observe and locate.

[0099] In some embodiments of the present application, in order to facilitate communication with the cloud server and the air conditioner maintenance terminal, and better signal transmission and control, the air conditioner device includes an air conditioner WIFI module, an air conditioner Bluetooth module, an air conditioner main control module, etc., as shown in Figure 5 .

[0100] The air conditioner WIFI module is used for communication with the cloud server, receives a start positioning signal sent by the cloud server, and sends it to the air conditioner main control module.

[0101] The air conditioner Bluetooth module is used for Bluetooth communication with an air conditioner maintenance terminal.

[0102] The air conditioner main control module is configured to receive a start positioning signal sent by the air conditioner WIFI module, and control the air conditioner Bluetooth module to send a Bluetooth broadcast signal after receiving the start positioning signal.

[0103] In some embodiments of the present application, the air conditioner Bluetooth module is in an off state after the network configuration is completed, so as to achieve the purpose of energy saving; the air conditioner main control module controls the air conditioner Bluetooth module to start and send a Bluetooth broadcast signal after receiving a start positioning signal.

[0104] Therefore, in order to save energy, the air conditioner Bluetooth module is turned off after the network configuration is completed, and is turned on and sends a Bluetooth broadcast signal only after receiving a start positioning signal from the air conditioner main control module.

[0105] In some embodiments of the present application, in order to facilitate the upgrade of the air conditioner device, the air conditioner device further comprises an air conditioner upgrade module, as shown in Figure 6 .

[0106] The air conditioner upgrade module is used for controlling the air conditioner WIFI module to download upgrade data from a cloud server, and upgrading the air conditioner main control module according to the upgrade data.

[0107] The upgrade process of the air conditioner device comprises the following steps, as shown in Figure 7 .

[0108] Step S31: After receiving an upgrade instruction, the air conditioner upgrade module sends a download instruction to the air conditioner WIFI module.

[0109] Step S32: After receiving the download instruction, the air conditioner WIFI module downloads upgrade data (SDK package) from a cloud server.

[0110] Step S33: The air conditioner upgrade module upgrades the air conditioner main control module according to the upgrade data.

[0111] The multi-connected air conditioning system of the embodiment realizes the quick positioning of the indoor unit or the outdoor unit based on Bluetooth technology. The existing Wifi module software of the multi-connected air conditioning system can be upgraded to support Bluetooth communication technology in addition to supporting Bluetooth network configuration, so that the multi-connected air conditioning system can be transformed into a Bluetooth beacon base station. The existing maintenance terminal can be provided with an embedded SDK package (the existing maintenance terminal is generally a smart phone, so it has Bluetooth communication function), so that the existing maintenance software can be upgraded by using the SDK package to realize the quick positioning of the indoor unit and the outdoor unit of the multi-connected air conditioning system by using Bluetooth technology. The application makes full use of the existing mature hardware technology module, without developing a new hardware module, and only needs to upgrade the software of the original hardware module to realize the quick positioning of the multi-connected air conditioning system by using Bluetooth technology, thereby greatly reducing the cost of upgrading the existing multi-connected air conditioning system and realizing quick popularization and application.

[0112] Both the indoor unit and the outdoor unit are provided with a Wifi module supporting Bluetooth network configuration, and enter the quick positioning mode after receiving the starting positioning signal. When the indoor unit / outdoor unit is in the quick positioning mode, the Bluetooth module will be turned on to periodically broadcast signals and data as a Bluetooth beacon base station.

[0113] The air conditioner maintenance terminal supporting Bluetooth function will receive the broadcast signals of different Bluetooth beacons when it enters the Bluetooth signal coverage range. The signals carry ID and RSSI information, and the maintenance terminal can obtain the distance from the target indoor unit / outdoor unit by using the RSSI information, so as to quickly locate the target indoor unit / outdoor unit.

[0114] In order to improve the positioning accuracy, when there are multiple adjacent indoor units or outdoor units in a certain area, the maintenance personnel cannot accurately know which indoor unit or outdoor unit is the target device. Therefore, the application proposes an auxiliary positioning implementation method, that is, when the maintenance personnel preliminarily determines that the target indoor unit or outdoor unit is within the Bluetooth range, the Bluetooth module of the indoor unit or outdoor unit is bound through Bluetooth, so as to communicate with the target indoor unit or outdoor unit by using Bluetooth, and accurately locate the indoor unit or outdoor unit by issuing simple on-off, switching air volume and the like.

[0115] Next, the working process of the outdoor unit or the indoor unit will be described in detail. Figure 8 The working process of the outdoor unit or the indoor unit will be described in detail.

[0116] Step S41: The cloud server issues a starting positioning command to the indoor unit / outdoor unit.

[0117] In order to save energy, the Bluetooth module of the indoor unit and the outdoor unit is generally in the off state after network configuration, so the cloud server needs to issue a starting positioning command to notify the indoor unit / outdoor unit to turn on the Bluetooth module.

[0118] Step S42: After receiving the start positioning command, the indoor / outdoor unit sends an opening command to the Bluetooth module.

[0119] Step S43: After receiving the opening command, the Bluetooth module is opened and periodically broadcasts Bluetooth signals so that the smart terminal can receive the signals.

[0120] The existing maintenance terminal maintenance software is upgraded by using the SDK package supporting Bluetooth technology positioning to realize the rapid positioning of the air conditioner. Next, the working process of the air conditioner maintenance terminal is described in detail. Figure 9 The working process of the air conditioner maintenance terminal is described in detail.

[0121] Step S51: The air conditioner maintenance terminal opens its Bluetooth module.

[0122] Step S52: The Bluetooth broadcast signal sent by the indoor / outdoor unit is continuously received.

[0123] Step S53: The Bluetooth ID information and RSSI information of the target indoor / outdoor unit are identified.

[0124] Step S54: The distance from the target indoor / outdoor unit is calculated according to the received RSSI information.

[0125] Step S55: When the distance from the target indoor / outdoor unit is less than the preset distance threshold, the approximate position of the target indoor / outdoor unit is located.

[0126] Step S56: If accurate positioning is still needed, the smart terminal actively binds the Bluetooth module of the target indoor / outdoor unit to establish Bluetooth communication.

[0127] Step S57: The air conditioner maintenance terminal uses Bluetooth communication to send commands such as turning on / off and switching air volume to the target indoor / outdoor unit to accurately locate the target indoor / outdoor unit.

[0128] Step S58: According to the response, the target indoor / outdoor unit can be accurately located.

[0129] Embodiment Two,

[0130] The embodiment provides an air conditioner maintenance terminal, which comprises a terminal Bluetooth module and a terminal control module, the terminal Bluetooth module communicates with the terminal control module, as shown in the figure. Figure 10

[0131] The terminal Bluetooth module is used for Bluetooth communication with the air conditioner device, receives the Bluetooth broadcast signal sent by the air conditioner device, and sends the received Bluetooth broadcast signal to the terminal control module.

[0132] ​The terminal control module is configured to: receive a Bluetooth broadcast signal sent by the terminal Bluetooth module, parse the received Bluetooth broadcast signal, obtain RSSI information in the Bluetooth broadcast signal, calculate the distance from the air conditioning device according to the parsed RSSI information, and position the air conditioning device according to the distance from the air conditioning device when the distance from the air conditioning device is below a preset distance threshold.

[0133] After receiving the Bluetooth broadcast signal sent by the air conditioning device, the terminal control module calculates the distance from the air conditioning device according to the RSSI information in the Bluetooth broadcast signal, and positions the air conditioning device according to the distance from the air conditioning device when the distance from the air conditioning device is less than the preset distance threshold, thereby achieving rapid positioning.

[0134] The air conditioning maintenance terminal of the embodiment receives the Bluetooth broadcast signal sent by the air conditioning device, parses the received Bluetooth broadcast signal, obtains the RSSI information in the Bluetooth broadcast signal, calculates the distance from the air conditioning device according to the parsed RSSI information, and positions the air conditioning device according to the distance from the air conditioning device when the distance from the air conditioning device is below a preset distance threshold. Therefore, the air conditioning maintenance terminal of the embodiment achieves rapid positioning of the air conditioning device, does not need to add new hardware to the air conditioning device, only uses the existing WIFI module and Bluetooth module on the air conditioning device, reduces the positioning cost, and solves the technical problem of high positioning cost of the air conditioning device in the prior art.

[0135] The air conditioning maintenance terminal of the embodiment can achieve rapid positioning of the indoor unit and the outdoor unit, facilitates the maintenance personnel to quickly find the indoor unit or the outdoor unit that has a fault, and improves the maintenance efficiency.

[0136] In some embodiments of the application, when the distance from the air conditioning device is below a preset distance threshold, the air conditioning device is positioned according to the distance from the air conditioning device, specifically including:

[0137] When the terminal control module calculates that the distance from the air conditioning device is below a preset distance threshold, the terminal control module controls the terminal Bluetooth module to be bound with the air conditioning device through Bluetooth, and sends an action instruction to the air conditioning device through the terminal Bluetooth module.

[0138] The air conditioning device that responds to the action instruction is the air conditioning device to be found by the maintenance personnel, and the maintenance personnel can quickly determine the target air conditioning device.

[0139] Therefore, when the terminal control module calculates that the distance from the air conditioning device is below a preset distance threshold, the terminal control module controls the terminal Bluetooth module to be bound with the air conditioning device through Bluetooth, and sends an action instruction to the air conditioning device through the terminal Bluetooth module. The air conditioning device that correctly responds to the action instruction is the target air conditioning device, which improves the positioning accuracy and achieves rapid and accurate positioning of the target air conditioning device.

[0140] In some embodiments of the application, the action instruction includes one or more of a power-on / off instruction, a switching air volume instruction, and a switching swing instruction.

[0141] After receiving the power-on / off instruction, the air conditioning equipment is powered on or off, and the action changes obviously, which is convenient for maintenance personnel to locate.

[0142] After receiving the switching air volume instruction, the air conditioning equipment switches the air volume, and the action changes obviously, which is convenient for maintenance personnel to locate.

[0143] After receiving the switching swing instruction, the air conditioning equipment switches the swing, and the action changes obviously, which is convenient for maintenance personnel to locate.

[0144] The air conditioning maintenance terminal sends a power-on / off instruction, a switching air volume instruction, or a switching swing instruction to the air conditioning equipment, and when the air conditioning equipment implements the instruction, the action changes obviously, which is convenient for maintenance personnel to observe and locate.

[0145] In some embodiments of the application, in order to facilitate the upgrade of the air conditioning maintenance terminal, the air conditioning maintenance terminal further includes a terminal upgrade module, as shown in Figure 11 .

[0146] The terminal upgrade module is configured to receive upgrade data and upgrade the terminal control module according to the received upgrade data.

[0147] The upgrade process of the air conditioning maintenance terminal includes the following steps, as shown in Figure 12 .

[0148] Step S61: The terminal upgrade module downloads upgrade data (SDK package) from the upper computer or other equipment.

[0149] Step S62: The terminal upgrade module upgrades the terminal control module according to the upgrade data.

[0150] In the description of the above embodiments, specific features, structures, materials or characteristics can be combined in any one or more embodiments or examples in a suitable manner.

[0151] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto, and any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. An air conditioner maintenance terminal, characterized by comprising: Comprising: A terminal Bluetooth module for Bluetooth communication with the air conditioning equipment, receiving the Bluetooth broadcast signal sent by the air conditioning equipment; The terminal control module is configured to: receive the Bluetooth broadcast signal sent by the terminal Bluetooth module, analyze the received Bluetooth broadcast signal, obtain the RSSI information in the Bluetooth broadcast signal, calculate the distance from the air conditioning equipment according to the analyzed RSSI information; When the distance from the air conditioning equipment reaches below the preset distance threshold, the air conditioning equipment is positioned according to the distance from the air conditioning equipment.

2. The air conditioner maintenance terminal according to claim 1, characterized by: When the distance from the air conditioning equipment reaches below the preset distance threshold, the air conditioning equipment is positioned according to the distance from the air conditioning equipment, specifically including: When the terminal control module calculates that the distance from the air conditioning equipment reaches below the preset distance threshold, the terminal Bluetooth module is controlled to bind with the air conditioning equipment through Bluetooth, and the terminal Bluetooth module sends an action instruction to the air conditioning equipment.

3. The air conditioner maintenance terminal according to claim 2, characterized by: The action instruction includes one or more of the power on / off instruction, the air volume switching instruction, and the swing switching instruction.

4. The air conditioner maintenance terminal according to any one of claims 1 to 3, characterized by: The air conditioner maintenance terminal further comprises: A terminal upgrade module for receiving upgrade data and upgrading the terminal control module according to the received upgrade data.

5. A multi-split air conditioning system, characterized in that, Comprising: The air conditioning equipment sends a Bluetooth broadcast signal after receiving a start positioning signal; The air conditioner maintenance terminal analyzes the received Bluetooth broadcast signal after receiving the Bluetooth broadcast signal sent by the air conditioning equipment, obtains the RSSI information in the Bluetooth broadcast signal, calculates the distance from the air conditioning equipment according to the analyzed RSSI information; When the distance from the air conditioning equipment reaches below the preset distance threshold, the air conditioning equipment is positioned according to the distance from the air conditioning equipment. 6.The multi-split air conditioning system according to claim 5, characterized by: When the distance from the air conditioning equipment reaches below the preset distance threshold, the air conditioning equipment is positioned according to the distance from the air conditioning equipment, specifically including: When the air conditioner maintenance terminal calculates that the distance from the air conditioning equipment reaches below the preset distance threshold, the air conditioner maintenance terminal binds with the air conditioning equipment through Bluetooth, and sends an action instruction to the air conditioning equipment through Bluetooth communication.

7. The multi-split air conditioning system according to claim 6, wherein: The action instruction includes one or more of the power on / off instruction, the air volume switching instruction, and the swing switching instruction. 8.The multi-split air conditioning system according to claim 5, characterized by: The air conditioning equipment comprises: An air conditioner WIFI module for communicating with a cloud server and receiving a start positioning signal sent by the cloud server; An air conditioner Bluetooth module for Bluetooth communication with the air conditioner maintenance terminal; An air conditioner main control module configured to receive the start positioning signal sent by the air conditioner WIFI module, and control the air conditioner Bluetooth module to send a Bluetooth broadcast signal after receiving the start positioning signal.

9. The multi-connected air conditioning system according to claim 8, wherein: The air conditioner Bluetooth module is in a closed state after network configuration is completed; The air conditioner main control module controls the air conditioner Bluetooth module to start and send a Bluetooth broadcast signal after receiving the start positioning signal. 10.The multi-split air conditioning system according to claim 8, characterized by: The air conditioning equipment further comprises: An air conditioner upgrade module for controlling the air conditioner WIFI module to download upgrade data from the cloud server, and upgrading the air conditioner main control module according to the upgrade data.

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