CN117121443A - Central air conditioner control system - Google Patents

Central air conditioner control system Download PDF

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Publication number
CN117121443A
CN117121443A CN202280026628.1A CN202280026628A CN117121443A CN 117121443 A CN117121443 A CN 117121443A CN 202280026628 A CN202280026628 A CN 202280026628A CN 117121443 A CN117121443 A CN 117121443A
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CN
China
Prior art keywords
controller
address
instruction
communication bus
control system
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Pending
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CN202280026628.1A
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Chinese (zh)
Inventor
徐磊
曹基宏
孙照鹏
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Qingdao Hisense Hitachi Air Conditioning System Co Ltd
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Qingdao Hisense Hitachi Air Conditioning System Co Ltd
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Application filed by Qingdao Hisense Hitachi Air Conditioning System Co Ltd filed Critical Qingdao Hisense Hitachi Air Conditioning System Co Ltd
Publication of CN117121443A publication Critical patent/CN117121443A/en
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/50—Control or safety arrangements characterised by user interfaces or communication
    • F24F11/54—Control or safety arrangements characterised by user interfaces or communication using one central controller connected to several sub-controllers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/50—Control or safety arrangements characterised by user interfaces or communication
    • F24F11/56—Remote control
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/50—Control or safety arrangements characterised by user interfaces or communication
    • F24F11/61—Control or safety arrangements characterised by user interfaces or communication using timers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • F24F11/63—Electronic processing
    • F24F11/64—Electronic processing using pre-stored data
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/88—Electrical aspects, e.g. circuits

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Fuzzy Systems (AREA)
  • Mathematical Physics (AREA)
  • Air Conditioning Control Device (AREA)

Abstract

The central air conditioner control system comprises at least one outdoor unit, at least one indoor unit, at least one controller and a configuration module; at least one indoor unit is in communication connection with each outdoor unit through a communication bus; each of the at least one controller is capable of communicating with each other and is respectively connected with the communication bus; the configuration module is used for determining a controller address list by sending an address acquisition instruction to the communication bus and analyzing and receiving the instruction fed back by the controller when the new controller is accessed to the communication bus; and configuring the address of the new controller according to the controller address list.

Description

Central air conditioner control system
Cross Reference to Related Applications
The present disclosure claims priority from the chinese patent office, chinese patent application number 202110897515.6, filed at 2021, month 08, 05, the entire contents of which are incorporated by reference into the present disclosure.
Technical Field
The disclosure relates to the technical field of air conditioner control, in particular to a central air conditioner control system.
Background
The current central air-conditioning application scene is more and more extensive, and central air-conditioning system includes many indoor units, if under the scene of many systems, indoor unit quantity can be more, if want these air conditioners of convenient management, ordinary remote controller can't satisfy the requirement yet, so need to use many controllers to manage.
Disclosure of Invention
Some embodiments of the present disclosure provide a central air conditioner control system, which is characterized by comprising at least one outdoor unit, at least one indoor unit, at least one controller, and a configuration module. At least one indoor unit is in communication connection with each outdoor unit through a communication bus; each of the at least one controller is capable of communicating with each other and is respectively connected with the communication bus; the configuration module is configured to determine a controller address list by sending an address acquisition instruction to the communication bus and analyzing the instruction fed back from the new controller when the new controller is connected to the communication bus; and configuring the address of the new controller according to the controller address list.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present disclosure, and other drawings may be obtained according to these drawings without inventive effort for a person of ordinary skill in the art.
FIG. 1 is a schematic block diagram of a central air conditioning control system according to the present disclosure;
FIG. 2 is a flow chart of calculating the address of a new controller in a central air conditioning control system according to the present disclosure;
fig. 3 is a flowchart of calculating an address of a new controller of a central air conditioning control system and identifying at least one second controller according to the present disclosure.
Detailed Description
The following description of the technical solutions in the embodiments of the present disclosure will be made clearly and completely with reference to the accompanying drawings in the embodiments of the present disclosure, and it is apparent that the described embodiments are only some embodiments of the present disclosure, not all embodiments.
In describing some embodiments, expressions of "coupled" and "connected" and their derivatives may be used. For example, the term "connected" may be used in describing some embodiments to indicate that two or more elements are in direct physical or electrical contact with each other. As another example, the term "coupled" may be used in describing some embodiments to indicate that two or more elements are in direct physical or electrical contact. However, the term "coupled" or "communicatively coupled (communicatively coupled)" may also mean that two or more elements are not in direct contact with each other, but yet still co-operate or interact with each other. The embodiments disclosed herein are not necessarily limited to the disclosure herein.
The use of "adapted" or "configured to" herein is meant to be an open and inclusive language that does not exclude devices adapted or configured to perform additional tasks or steps.
In addition, the use of "based on" is intended to be open and inclusive in that a process, step, calculation, or other action "based on" one or more of the stated conditions or values may be based on additional conditions or beyond the stated values in practice.
As used herein, the term "if" is optionally interpreted to mean "when … …" or "at … …" or "in response to a determination" or "in response to detection" depending on the context. Similarly, the phrase "if determined … …" or "if detected [ stated condition or event ]" is optionally interpreted to mean "upon determining … …" or "in response to determining … …" or "upon detecting [ stated condition or event ]" or "in response to detecting [ stated condition or event ]" depending on the context.
The terms "first" and "second" are used below for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the embodiments of the present disclosure, unless otherwise indicated, the meaning of "a plurality" is two or more.
Basic operation principle of air conditioner
The refrigerating cycle system of the air conditioner includes a compressor, a condenser, an expansion valve, and an evaporator. The refrigeration cycle includes a series of processes involving compression, condensation, expansion, and evaporation, and supplies a refrigerant to the air that has been conditioned and heat exchanged.
The compressor compresses a 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.
The expansion valve expands the liquid-phase refrigerant in a high-temperature and high-pressure state 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 may achieve a cooling effect by exchanging heat with a material to be cooled using latent heat of evaporation of a refrigerant. Throughout the cycle, the air conditioner may adjust the temperature of the indoor space.
The air conditioner outdoor unit includes a portion of a compressor of the refrigeration cycle system and an outdoor heat exchanger, the air conditioner indoor unit includes an indoor heat exchanger, and the expansion valve may be provided in the air conditioner indoor unit or the outdoor unit.
The indoor heat exchanger and the outdoor heat exchanger may function as a condenser or an evaporator. When the indoor heat exchanger is used as a condenser, the air conditioner is used as a heater of a heating mode, and when the indoor heat exchanger is used as an evaporator, the air conditioner is used as a cooler of a cooling mode.
[ Central air Conditioning control System ]
The central air conditioner control system comprises at least one outdoor unit, at least one indoor unit, at least one controller and a configuration module.
Referring to fig. 1, only one outdoor unit is shown, and the outdoor unit is communicatively connected to at least one indoor unit (indoor unit 1, indoor unit 2, and the outdoor unit n (n Σ1)) through a communication bus.
The outdoor unit and the indoor unit form an air conditioning system, and the controller is used for controlling the air conditioning system.
Referring to fig. 1, the at least one controller that has been accessed is noted as: controller 1, controller 2, & gt.
The controllers can communicate with each other, i.e., the controllers can receive communication messages from other controllers.
The configuration module is used for sending an address acquisition instruction A to the communication bus when the new controller n+1 is accessed to the communication bus, receiving and analyzing the instruction fed back by the controller, and determining a controller address list.
The configuration module is also used for configuring the address of the new controller n+1 according to the controller address list.
In some embodiments of the present disclosure, address acquisition instruction a includes a preset address.
For example, the address information of the preset address is FF, and has a flag bit that identifies the transmitted instruction as an address acquisition instruction.
When the controller i (i is more than or equal to 1 and less than or equal to n) receives the address acquisition instruction A, the controller i can know that the address information sent by the instruction is FF and the instruction is the instruction for acquiring the address.
In some embodiments of the present disclosure, the instruction of the controller feedback received by the new controller n+1 includes two cases: 1. each other controller i (i is more than or equal to 1 and less than or equal to n) feeds back an instruction to the new controller n+1; 2. one of the controllers i (i is greater than or equal to 1 and less than or equal to n) feeds back instructions to the new controller n+1.
[ Address I of configuration New controller ]
Referring to FIG. 2, a flow chart is shown for controller i (1.ltoreq.i.ltoreq.n) in communication with a new controller n+1 for determining the address of the new controller n+1.
Each controller i (1.ltoreq.i.ltoreq.n) knows its own address, but does not know the list of controller addresses formed by the controller addresses of all controllers i (1.ltoreq.i.ltoreq.n).
Thus, each controller i is required to communicate with the new controller n+1 separately.
S21: the new controller n+1 accesses the communication bus.
S22: the new controller n+1 sends an address fetch command a to the communication bus.
The address acquisition instruction a is an instruction having a preset address and a flag bit as described above.
S23: judging whether at least one controller i (1 is less than or equal to i is less than or equal to n) exists on the communication bus, if yes, proceeding to S24, otherwise, configuring the address of the new controller n+1.
It should be noted that, the communication bus should be connected to at least one existing controller in advance, which is called a second controller for convenience of description. That is, the new controller of the new access is not the controller on the first access communication bus.
If the new controller is the first controller on the access communication bus, its address can be freely allocated under the requirement, and the problem of conflict with other existing controlled addresses is not considered.
S24: at least one controller receives the address acquisition instruction A through the communication bus in sequence, and feeds back an instruction B to the communication bus.
At least one controller i (1.ltoreq.i.ltoreq.n) each sends an instruction B to the communication bus, the instruction B containing the controller address of the controller i.
In some embodiments of the present disclosure, the controller 1 receives the address acquisition instruction a and feeds back to the communication bus an instruction B containing the controller address of the controller 1.
The controller 2 receives the address acquisition command a and feeds back to the communication bus a command B containing the controller address of the controller 2.
It should be noted that at least one controller i (i.ltoreq.i.ltoreq.n) needs to be online, so that the address of the new controller n+1 can be reliably configured, and address collision is avoided.
S25: after receiving the instruction B, the new controller n+1 analyzes the instruction B to form a controller address list table1.
In some embodiments of the present disclosure, the new controller n+1, upon receiving instruction B, parses, obtains the controller address of the controller 1, and stores.
After receiving the instruction B, the new controller n+2 analyzes the instruction B, and obtains and stores the controller address of the controller 2.
The controller addresses of the controllers i are sequentially acquired and stored to form a controller address list table1.
S26: after the new controller n+1 is judged to search all the controllers 1 to n, the address of the new controller n+1 is configured according to the controller address list table1.
The controller addresses of the existing controllers are typically consecutive, so that addresses can be continuously configured for the new controller n+1.
If the address of the controller m (1 is less than or equal to m < n) and the address of the controller m+1 are discontinuous, the address between the address of the controller m (1 is less than or equal to m < n) and the address of the controller m+1 can be configured for the new controller n+1, so that address waste is avoided.
Assuming that the new controller n+1 sets the timeout period for receiving the feedback command of each controller to be T, the upper limit number of the controllers to be M, and the maximum timeout period to be t×m, that is, the accessed controller n+1 waits for t×m time.
After the time is greater than or equal to t×m, all controllers on the communication bus are considered to be searched, and then the address of the new controller n+1 can be configured according to the controller address list table1.
The central air conditioner control system can realize the automatic configuration of the n+1 address of the new controller.
The address configuration method needs to judge that the controller finishes searching by waiting for overtime T.M, has long automatic address configuration time, and can have the problem of incomplete searching because the searching is not finished yet but overtime; and it is necessary to ensure that all controllers 1 to n are online.
[ Address II of configuring New controller ]
Referring to FIG. 3, a flow chart is shown for controller i (1.ltoreq.i.ltoreq.n) communicating with new controller n+1 for determining the address of new controller n+1 and for acknowledging with controllers 1-n (see dashed boxes in FIG. 3).
S31: the new controller n+1 is accessed.
S32: the new controller n+1 sends an address fetch command a to the communication bus.
The address acquisition instruction a is an instruction having a preset address and a flag bit as described above.
S33: judging whether at least one controller i (1 is less than or equal to i is less than or equal to n) exists on the communication bus, if yes, proceeding to S34, if no, configuring the address of the new controller n+1.
S34: one of the at least one controller receives the address acquisition instruction A through the communication bus and feeds back an instruction B' to the communication bus.
In some embodiments of the present disclosure, the controller 1 receives the address acquisition instruction a and feeds back to the communication bus an instruction B' containing the controller addresses of the controllers 1 to n.
The controller 2 receives the address acquisition instruction a and feeds back an instruction B' including the controller addresses of the controllers 1 to n to the communication bus.
The instruction B' includes a controller address list table1 formed by the controller addresses of the controllers i (1. Ltoreq.i. Ltoreq.n).
The determination module is used for determining which of the at least one controller feeds back the command B 'to the communication bus, i.e. determining the priority of the controller feeding back the command B' to the communication bus.
In the present disclosure, the determining module obtains the priority of at least one controller of the feedback instruction B' in a manner of generating a random number.
First, a random number is generated by seeding with a system time.
Next, the controller with the smallest random number is selected to feed back the command B' to the communication bus, i.e., the controller with the smallest random number is considered to have the highest priority.
The minimum random number indicates that the system time is earliest, and after the controller with earliest time feeds back the command B ', other subsequent controllers do not feed back the command B' to the communication bus.
Of course, there are many ways of determining which controller feeds back the instruction B', in some embodiments of the present disclosure, the priority order of each of the at least one controller is preset, and in some embodiments of the present disclosure, the priorities of the controllers 1-n are sequentially decreased.
When any one of the controllers 1 to n receives the address acquisition instruction a sent by the new controller n+1, the fed back instruction B' includes the controller address list table1 of the controller addresses of the controllers 1 to n, that is, each of the controllers 1 to n has the controller address list table1 described above.
The controller address list table1 can be obtained only by transmitting any one instruction of the new controller n+1 and the controllers 1 to n, so that the time for configuring the address of the new controller n+1 is saved; and does not cause communication busyness on the communication bus.
It should be noted that, the existing at least one controller should be accessed in advance on the communication bus, that is, the newly accessed new controller is not the controller on the first access communication bus.
If the new controller is the first controller on the access communication bus, its address can be freely allocated under the requirement, and the problem of conflict with other existing controlled addresses is not considered.
S35: after receiving the instruction B ', the new controller n+1 analyzes the instruction B' to obtain a controller address list table1.
In some embodiments of the present disclosure, after receiving the instruction B 'fed back by the controller 1, the new controller n+1 parses the instruction B' to obtain a controller address list table1; or alternatively
After receiving the instruction B 'fed back by the controller 2, the new controller n+1 analyzes the instruction B' to obtain a controller address list table1.
S36: and configuring the address of the new controller n+1 according to the controller address list table1.
The controller addresses in the controller address list table1 of the existing controller are generally consecutive, so that addresses can be continuously configured for the new controller n+1.
If the addresses in the controller address list table1 are discontinuous, in some embodiments of the present disclosure, the addresses of the controller m (1+.m < n) and the addresses of the controller m+1 are discontinuous, then the new controller n+1 may be configured with the addresses between the addresses of the controller m (1+.m < n) and the addresses of the controller m+1, avoiding address waste and realizing reasonable address allocation.
[ update Address List ]
After the configuration of the address of the new controller n+1 is completed, there may be some controllers that are not online (power down in some embodiments of the present disclosure) and that need to be confirmed online for controllers 1-n for reliable control.
The central air conditioner control system further includes an updating module (not shown) for updating the controller address list of the online controller and the new controller n+1 among the controllers 1 to n.
S37: the new controller n+1 sends instruction C to the communication bus.
Instruction C contains a list of controller addresses with the controller address of the new controller.
That is, the controller address list in the instruction C is a controller address list table containing the controller addresses of the controllers 1 to n+1 n+1 {1,2,3，...,n+1}。
S38: judging whether the controller i (i is more than or equal to 1 and less than or equal to n) feeds back the response command D, if yes, proceeding to S39, otherwise proceeding to S39'.
New controller n+1 follows controller addressList table n+1 Information of {1,2, 3..n+1 } is confirmed on line with the controllers 1 to n one by one.
S39: indicating that the controller i is online, updating the controller address of the new controller n+1 into the controller address list of the controller i.
If the controller i (1 is less than or equal to i is less than or equal to n) receives the instruction C on line and feeds back a response instruction D, the controller i is on line, and the controller address of the new controller n+1 is updated into a controller address list of the controller i.
In some embodiments of the present disclosure, after the controller 1 receives the instruction C online, the controller address of the new controller n+1 is updated to the controller address list of the controller 1, where the controller address list of the controller 1 is a controller address list table containing the controller addresses of the controllers 1 to n+1 1 {1,2,3,...,n+1}。
Thus, if all of the controllers 1 to n are online, the controller address list of each of the controllers 1 to n is a controller address list including the controller addresses of the controllers 1 to n+1.
S39': indicating that the controller i is on-line, the new controller n+1 will send the controller address of the controller i from the controller address list table of the new controller n+1 n+1 {1,2,3,...
If the new controller n+1 does not receive the response command D of any one of the controllers 1-n (1.ltoreq.i.ltoreq.n), then the command C is sent again to the communication bus, if the response command D of the controller i (1.ltoreq.i.ltoreq.n) is not received yet, the new controller n+1 will send the controller address of the controller i from the controller address list table of the new controller n+1, the new controller n+1 indicates that the controller i (1.ltoreq.i.ltoreq.n) is not on line n+1 {1,2,3,.. n+1 {1,2,3,...,i-1,i+1,...,n+1}。
S40: after the controllers 1 to n perform one-to-one confirmation, the new controller n+1 updates its controller address list.
In this way, the controllers 1 to n are confirmed one by one, and after all the controllers 1 to n are confirmed, the updated controller address list of the new controller n+1 contains the controller addresses of all the online controllers in the controllers 1 to n and the controller address of the new controller n+1.
In some embodiments of the present disclosure, after controllers 1-n are confirmed, only controller 3 of controllers 1-n is not online, and the list of controller addresses for each controller is as follows.
The updated controller address list of the new controller n+1 is table n+1 {1,2,4,...,n+1}。
For an online controller, the address list of the controller is a table 1 {1,2,3,...,n+1}。
S41: and the new controller n+1 sends the updated controller address list to the communication bus through the instruction E, and all online controllers synchronously update the updated controller address list.
In some embodiments of the present disclosure, the updated controller address list for the new controller n+1 is a table n+1 {1,2,4,.. the list of controller addresses for all online controllers is also from the table 1 {1,2,3,.,. N+1} is updated to table n+1 {1,2,4,...,n+1}。
That is, the controller address of the off-line controller (i.e., the controller 3) is eliminated, and the confirmation can avoid control omission, thereby being convenient and reliable to control.
The central air conditioner control system provided by the disclosure obtains the address of the new controller by automatically obtaining the address of at least one existing accessed controller on the communication bus, so that the purpose of automatically setting the address of the new controller is realized, the conflict with the address of the accessed controller is avoided, and the reliable communication is ensured; meanwhile, the address setting of the new controller can be realized by using a software program, so that the hardware input cost is saved; and the address of the new controller is not required to be set manually, so that time and labor are saved.
Thus, the address of the new controller n+1 on the new access communication bus can be automatically set in the mode, the hardware input cost is saved, the address configuration time is saved, and the address setting efficiency is improved.
The above embodiments are merely for illustrating the technical solution of the present disclosure, and are not limiting thereof; although the present disclosure has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the technical solutions described in the foregoing embodiments, or equivalents may be substituted for some of the technical features thereof; such modifications and substitutions do not depart from the spirit and scope of the corresponding technical solutions.

Claims (10)

  1. A central air conditioning control system comprising:
    at least one outdoor unit;
    at least one indoor unit which is connected with each outdoor unit through a communication bus;
    at least one controller, each controller can communicate with each other and is connected with the communication bus respectively;
    the configuration module is used for determining a controller address list by sending an address acquisition instruction to the communication bus and analyzing and receiving the instruction fed back by the controller when a new controller is connected to the communication bus;
    and configuring the address of the new controller according to the controller address list.
  2. The central air conditioner control system according to claim 1,
    the configuration module is used for feeding back an instruction to the new controller by each controller in the at least one controller when the address acquisition instruction is sent to the communication bus;
    the new controller analyzes the received instruction and obtains the controller address of each controller;
    the controller addresses of the at least one controller form the controller address list.
  3. The central air conditioner control system according to claim 1,
    the instruction includes a controller address of the controller.
  4. The central air conditioner control system of claim 1, wherein the central air conditioner control system further comprises:
    a determination module for determining which of the at least one controller feeds back the instruction to the new controller.
  5. The central air conditioner control system of claim 1, the instructions comprising a list of controller addresses formed from the controller addresses of each of the at least one controller.
  6. The central air conditioner control system of claim 5, the determination module obtains the priority of the at least one controller for feeding back the instruction by generating a random number.
  7. The central air conditioner control system according to claim 6, wherein the controller having the smallest random value acquires the priority.
  8. The central air conditioner control system of claim 7, further comprising:
    and the updating module is used for updating the controller address list of all online controllers in the at least one controller and the new controller.
  9. The central air conditioner control system according to claim 7,
    seed is planted by utilizing system time to generate random numbers;
    selecting a controller feedback instruction with the smallest random number to the communication bus, namely, the controller with the smallest random number has the highest priority;
    the minimum random number indicates that the system time is earliest, and after the controller with earliest time feeds back the instruction, other subsequent controllers do not feed back the instruction to the communication bus.
  10. The central air conditioning control system according to any of claims 1-9, the newly accessed new controller not being the controller on the first access communication bus.
CN202280026628.1A 2021-08-05 2022-03-09 Central air conditioner control system Pending CN117121443A (en)

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CN202110897515.6A CN113587393B (en) 2021-08-05 2021-08-05 Central air-conditioning control system
CN2021108975156 2021-08-05
PCT/CN2022/080013 WO2023010848A1 (en) 2021-08-05 2022-03-09 Central air-conditioning control system

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Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113587393B (en) * 2021-08-05 2022-11-29 青岛海信日立空调系统有限公司 Central air-conditioning control system
CN114017899A (en) * 2021-11-17 2022-02-08 四川长虹空调有限公司 Control method for realizing automatic matching and manual setting compatibility of centralized control target address
CN114484762B (en) * 2022-01-25 2024-05-14 青岛海尔空调电子有限公司 Control method of multi-split air conditioning system, multi-split air conditioning system and electronic equipment

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6160796A (en) * 1998-01-06 2000-12-12 Sony Corporation Of Japan Method and system for updating device identification and status information after a local bus reset within a home audio/video network
FR2864871A1 (en) * 2004-01-06 2005-07-08 Thomson Licensing Sa METHOD OF DISCOVERING A DOMESTIC NETWORK AND APPARATUS IMPLEMENTING THE METHOD
US8550368B2 (en) * 2005-02-23 2013-10-08 Emerson Electric Co. Interactive control system for an HVAC system
CN101635637A (en) * 2008-07-21 2010-01-27 江森自控楼宇设备科技(无锡)有限公司 Method and system for distributing intelligent addresses based on serial bus
CN103383128B (en) * 2013-07-11 2016-09-07 青岛海信日立空调系统有限公司 The centralized control system of multiple central air conditioner and control method
CN104754762B (en) * 2013-12-30 2019-12-03 中兴通讯股份有限公司 Automatically method, controller and the system of controller are found in the customized network of software
US9531587B2 (en) * 2014-11-12 2016-12-27 Smartlabs, Inc. Systems and methods to link network controllers using installed network devices
US20160134640A1 (en) * 2014-11-12 2016-05-12 Smartlabs, Inc. Systems and methods to securely install network controllers
CN105100296B (en) * 2015-05-28 2019-05-07 新华三技术有限公司 Controller address configuration method and device
CN104896797B (en) * 2015-06-15 2018-01-02 广东美的暖通设备有限公司 The control method of source pump and source pump
CN107026919B (en) * 2017-03-23 2020-05-15 珠海格力电器股份有限公司 Method for determining network address of node equipment, node equipment and control system
CN107231455A (en) * 2017-07-28 2017-10-03 北京硕人时代科技股份有限公司 A kind of method and device for distributing mailing address
US10928086B2 (en) * 2018-01-16 2021-02-23 Lennox Industries Inc. Auto-addressing for a multi-device refrigeration system
CN108881505A (en) * 2018-05-30 2018-11-23 武汉高仕达电气有限公司 A kind of CAN bus node address distribution method and system
CN109698871B (en) * 2018-12-20 2020-08-28 京信通信系统（中国）有限公司 Optical fiber distributed access system and management method thereof
CN110160204B (en) * 2019-06-11 2022-03-01 青岛海信日立空调系统有限公司 Multi-split air conditioning system control method and multi-split air conditioning system
CN112100007A (en) * 2020-10-12 2020-12-18 苏州浪潮智能科技有限公司 Method and system for switching main controller in multi-controller storage equipment
CN113587393B (en) * 2021-08-05 2022-11-29 青岛海信日立空调系统有限公司 Central air-conditioning control system

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