Search

CN-122015202-A - Air conditioner

CN122015202ACN 122015202 ACN122015202 ACN 122015202ACN-122015202-A

Abstract

The invention discloses an air conditioner which comprises an outdoor unit, a plurality of indoor units, a plurality of line controllers and a centralized controller, wherein the air conditioner respectively comprises a first control module, a first communication module, a second control module, a second communication module, a third control module, a third communication module, a fourth control module and a fourth communication module which are in communication connection, the communication modules are power line carrier modules, the first communication module, the second communication module and the fourth communication module are connected through a power line bus, a bottom layer networking and an application networking, the indoor units further comprise controllable switch modules which comprise control ends and switches, the switches are respectively connected with power lines and the line controllers, the control ends are connected with the second control module, the control switches can reset the line controllers, the third control module can receive handshake signals sent by the indoor units in handshake duration after reset, after the bottom layer networking and the application networking are completed, the outdoor unit sequentially controls the line controllers corresponding to reset the line controllers and pairing with the line controllers. The installation efficiency is improved.

Inventors

  • XU MING
  • SHI LEI
  • LI LEILEI

Assignees

  • 青岛海信日立空调系统有限公司

Dates

Publication Date
20260512
Application Date
20241111

Claims (10)

  1. 1. An air conditioner is characterized by comprising an outdoor unit, a plurality of indoor units and a plurality of wire controllers; the outdoor unit comprises a first control module and a first communication module which are in communication connection, wherein the first communication module is a power carrier module; The indoor unit comprises a second control module and a second communication module which are in communication connection, wherein the second communication module is a power carrier module; The wire controller comprises a third control module and a third communication module which are in communication connection, wherein the third communication module is a power carrier module; The first communication modules and the second communication modules are connected through a power line bus and are used for a bottom layer networking and an application layer networking; The indoor unit further comprises a controllable switch module which comprises a control end and a switch, wherein two ends of the switch are respectively connected with the power line and the wire controller, the control end is connected with the second control module and used for controlling the switch to be opened or closed so as to enable the wire controller to be powered off and reset or powered on and reset, the third control module is preset with handshake duration and configured to receive handshake signals sent by the indoor unit in the handshake duration after reset to finish pairing with the indoor unit, and the outdoor unit sequentially controls the wire controllers corresponding to the reset of the indoor units and the pairing with the wire controllers after the bottom networking and the application networking are finished.
  2. 2. The air conditioner of claim 1, further comprising a centralized controller; The centralized controller comprises a fourth control module and a fourth communication module which are in communication connection, wherein the fourth communication module is a power carrier module; the first communication module, the second communication modules and the fourth communication module are connected through a power line bus and are used for a bottom layer networking and an application layer networking.
  3. 3. The air conditioner of claim 2, wherein the bottom layer networking comprises: S1, the first control module sends outdoor equipment signals to the first communication module, the second control modules send indoor equipment signals to the second communication modules, and the fourth control module sends centralized control equipment signals to the fourth communication module; S2, the first communication module replies the MAC address to the first control module, the second communication modules reply the second control modules and the fourth communication module replies the MAC address to the fourth control module; s3, networking is conducted on the first communication module, the second communication modules and the fourth communication modules.
  4. 4. An air conditioner according to claim 3, wherein in S3, comprising: S31, the first communication module is used as a gateway to start networking, and MAC addresses of the second communication module and the fourth communication module are collected and registered for a plurality of times; s32, comparing whether the number of the communication modules registered each time is the same or not, if so, executing S33, otherwise, executing S31; S33, the collected MAC addresses and the corresponding equipment types are sent to the first control module, and the bottom layer networking is completed.
  5. 5. The air conditioner of claim 2, wherein the application layer network comprises: S10, the first control module controls the first communication module to request unicast addresses of the indoor units according to the MAC addresses and waits for the indoor units to reply to the indoor units; S20, the first control module records the indoor unit addresses and counts the number of the received indoor unit addresses, if the number of the received indoor unit addresses is equal to the number of the communication modules in the bottom layer network, S30 is executed, and if the number of the received indoor unit addresses is not equal to the number of the communication modules in the bottom layer network, S1 is executed; S30, comparing the addresses of the indoor units to judge whether the addresses conflict, if so, executing S40, and if not, executing S50; s40, the outdoor unit sends address change information to the conflicting indoor unit and waits for the indoor unit to reply the changed indoor unit address; S50, the centralized controller registers the addresses of the indoor units, and networking is completed.
  6. 6. The air conditioner as set forth in claim 5, wherein in S50, further comprising: S501, when no conflict exists among the indoor unit addresses, the outdoor unit confirms the indoor unit addresses by unicasting the messages containing the indoor unit addresses to the indoor units and waits for reply replies of the indoor units; S502, judging whether all indoor units reply the response, if so, executing S503, and if not, executing S501 again; S503, comparing whether each indoor unit address registered by the outdoor unit is consistent with each indoor unit address registered by the centralized controller, if so, completing the application layer networking, and if not, executing S501.
  7. 7. The air conditioner as set forth in claim 6, wherein if said indoor unit addresses confirmed by said outdoor unit and said indoor units do not coincide with each of said indoor unit addresses registered by said central controller a plurality of times, returning to S10 to re-perform said application layer networking.
  8. 8. An air conditioner according to any one of claims 1 to 7 wherein the controllable switch module is a relay or a combination of cascaded relays.
  9. 9. The air conditioner according to any one of claims 1 to 7, wherein the second control module presets a start-up period, and pairing of the indoor unit and the corresponding line controller includes: S100, the outdoor unit sends a pairing license to one indoor unit; S200, the indoor unit controls the line controller to reset; S300, after delaying the starting time, the indoor unit sends the MAC address and the indoor unit address to the line controller; S400, the line controller replies a success signal after receiving success; s500, after receiving the success signal replied by the line controller, the indoor unit sends a pairing success signal to the outdoor unit; S600, accumulating the successful pairing quantity after the outdoor unit receives the successful pairing signals, judging whether the successful pairing quantity is equal to the quantity of the indoor units, if so, finishing pairing between each indoor unit and the corresponding wire controller, and if not, sending pairing permission to the next indoor unit.
  10. 10. The air conditioner of claim 9, wherein the indoor unit further comprises a load detection module connected to the second control module and one end of the switch, respectively, for detecting a load signal on the power line between the switch and the line controller and transmitting the load signal to the second control module; The indoor unit acquires the load signal after receiving the pairing permission signal and judges whether a load is connected or not, if so, the indoor unit is paired with the wire controller, and if not, a wireless controller connection signal is sent to the outdoor unit; And the outdoor unit receives the wireless controller connection signals and accumulates the wireless controller connection signals to the successful number and judges whether the successful number is equal to the number of the indoor units.

Description

Air conditioner Technical Field The invention relates to the technical field of air conditioning, in particular to an air conditioner. Background When the outdoor unit, the indoor unit, the centralized controller and the line controller of the traditional multi-split air conditioning system adopt Homebus or 485 communication modes, the commercial air conditioning system is one-to-many, the problem of line walking among unit equipment needs to be considered in the installation process, and the defects of high engineering installation cost, high difficulty, difficult investigation of poor contact faults of communication lines and the like exist. A multi-connected air conditioning unit communication network based on broadband power line carrier communication (Power Line Communication, PLC for short) is connected to the power line communication network through a multi-connected unit power supply line, and the power line network is used as a data communication line, so that the engineering quantity of communication line installation can be saved, and the phenomenon of poor contact of a communication line can be reduced. The power carrier communication is used for a long time in industries such as power meter reading, street lamps, photovoltaics and the like, and networking and maintenance of a network are very critical to the power carrier communication. The equipment installation is responsible for by special equipment manufacturer, and installer professional level is higher and mounted position is fixed relatively, adopts the scanning two-dimensional code that power line carrier communication trade is commonly used to add the whitelist and can realize the networking operation, but to many online systems, interior machine all installs in the furred ceiling, and hoist and mount scanning two-dimensional code is very difficult to the installation engineer. For industries such as electric power meter reading and street lamps, one power line is a network, all devices are communicated with each other in the network, but for a multi-split air conditioning system, the outdoor unit, the centralized controller and the indoor unit and the wire controller are communicated with each other respectively, the outdoor unit (including the centralized controller) and the wire controller are not required to be communicated with each other, and in the same system, the indoor unit and the wire controller have a plurality of nodes, if all the nodes form a network, the network burden is increased, the corresponding relation between the indoor unit and the wire controller cannot be determined, and the automatic networking of power on cannot be realized. The above information disclosed in this background section is only for enhancement of understanding of the background section of the application and therefore it may not form the prior art that is already known to those of ordinary skill in the art. Disclosure of Invention Aiming at the problems that the communication networking of the multi-split air conditioning system provided in the background art is difficult to install, the installation efficiency is affected and the installation cost is increased because the communication networking of the multi-split air conditioning system is completed by manual assistance, the invention realizes the automatic networking of the outdoor unit, the indoor unit and the wire controller respectively when the power is on according to the characteristics of the multi-split air conditioning system, solves the networking problem that the networking process is complex and the networking is necessary to be participated in manually, reduces the installation difficulty, improves the installation efficiency and further reduces the installation cost of the air conditioner. In order to achieve the aim of the invention, the invention is realized by adopting the following technical scheme: An air conditioner comprises an outdoor unit, a plurality of indoor units and a plurality of wire controllers; the outdoor unit comprises a first control module and a first communication module which are in communication connection, wherein the first communication module is a power carrier module; The indoor unit comprises a second control module and a second communication module which are in communication connection, wherein the second communication module is a power carrier module; The wire controller comprises a third control module and a third communication module which are in communication connection, wherein the third communication module is a power carrier module; The first communication modules and the second communication modules are connected through a power line bus and are used for a bottom layer networking and an application layer networking; The indoor unit further comprises a controllable switch module which comprises a control end and a switch, wherein two ends of the switch are respectively connected with the power line and the wire controller, the control end