CN110440391A - Loop network protection method and air conditioning system - Google Patents
Loop network protection method and air conditioning system Download PDFInfo
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- CN110440391A CN110440391A CN201910726769.4A CN201910726769A CN110440391A CN 110440391 A CN110440391 A CN 110440391A CN 201910726769 A CN201910726769 A CN 201910726769A CN 110440391 A CN110440391 A CN 110440391A
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- loop network
- air
- node
- conditioning
- nodes
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Classifications
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- 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
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
- F24F11/32—Responding to malfunctions or emergencies
- F24F11/38—Failure diagnosis
-
- 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
- F24F11/58—Remote control using Internet communication
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Human Computer Interaction (AREA)
- Small-Scale Networks (AREA)
Abstract
The invention discloses a loop network protection method and an air conditioning system. The loop network protection method comprises the following steps: sequentially connecting all nodes into a loop network for communication along a first direction through a main communication channel; connecting the nodes into a loop network along a second direction opposite to the first direction through a standby communication channel; when communication faults occur among nodes, all or part of standby communication channels among the nodes are started to carry out communication protection switching to form at least one loop network for communication. The invention can realize a long communication network with high error correction efficiency.
Description
Technical field
The present invention relates to a kind of loop network guard methods, and use the air-conditioning system of the loop network guard method.
Background technique
Communication has been the indispensable technological means of modern society, in many fields, requires each equipment and carries out
It interconnects to work, such as in air conditioner industry, the air-conditioner set to interconnect is now using very extensive air-conditioning
System.Interconnected communication also becomes the direction of subsequent air-conditioning information exchange.With future development, the performance of the components such as air-conditioning is mentioned
It rises, will also will drive the promotion of the communication performance of itself.And for such air-conditioning system, communication stablize, communicate away from
It is fast from length, communication speed, it will be the guarantee for guaranteeing the information interaction of each air conditioning unit in large space.Therefore, how one is provided
Loop network guard method is planted to realize that such ensure is technical problem urgently to be resolved in the industry.
Summary of the invention
In order to solve how to provide a kind of the technical issues of communicating stable loop network guard method in the prior art, mention
Loop network guard method, air-conditioning system are gone out.
Loop network guard method of the invention, comprising steps of
Each node is in turn connected into the loop network communicated along first direction by principal communication channel；
Each node is connected into loop network along the second direction opposite with first direction by alternate communication channels again；
When have there is communication failure between node when, led to by enabling the alternate communication channels between all or part of node
Letter pretection switch forms at least one loop network and is communicated.
Specifically, when there is the alternate communication channels of the failure of principal communication channel and whole between node normal, then entirely
The loop network that node starting alternate communication channels in portion's are formed is communicated.
Specifically, when the alternate communication channels failure between two nodes and the principal communication channel between two nodes
Normally, then the corresponding fault message of two nodes records.
Specifically, ought there is principal communication channel and alternate communication channels between node to break down, then principal communication is judged
Channel and the normal node number of segment of alternate communication channels, each section of node starting alternate communication channels and the master between them are led to
Letter channel is formed together a loop network and is communicated.
Preferably, the principal communication channel and alternate communication channels use optical fiber interface.
Specifically, judging whether two nodes communication failure occur, specifically include:
It is sent respectively by principal communication channel and alternate communication channels in each detection cycle between adjacent node corresponding
Detect message；
Adjacent node by obtain corresponding detection message send or receive failure as a result, come judge between two nodes whether
There is communication failure.
Preferably, when there is communication failure between two nodes, two nodes pass through principal communication channel and/or spare logical
After believing that channel sends fault message to loop network, all or part node executes communications protection switching operation again.
Specifically, the node is air-conditioner set.When having node functional fault occur in system, malfunctioning node passes through master
To other nodes transmission fault message, other nodes are adjusted according to the fault message for communication channel and/or alternate communication channels
Power maintains total output of the loop network.
Specifically, the fault message includes the ID, fault type and fault detail information of malfunctioning node.
Air-conditioning system proposed by the present invention, including several air-conditionings meet ancestral, and the air-conditioner set is as each of loop network
Node executes loop network guard method described in above-mentioned technical proposal.
The system that relatively long distance communication may be implemented in the present invention, and it is very high for the serious forgiveness of communication failure, very much
In the case where kind communication failure burst, system can be made to carry out long haul communication in the form of loop network, and in system
In some air-conditioning sending function failure when, can by loop network high speed other nodes, to be adjusted in time, it is ensured that whole
The output of a air-conditioning system.
Detailed description of the invention
Below with reference to embodiment and attached drawing, the present invention is described in detail, in which:
Fig. 1 is the connection schematic diagram of one embodiment of the invention.
Fig. 2 is the regulation flow process figure of one embodiment of the invention.
Specific embodiment
The principle and embodiment that the invention will now be described in detail with reference to the accompanying drawings.
The present invention is illustrated by taking the air-conditioning system that multiple air-conditioner sets form as an example, as shown in Figure 1, the air-conditioning system has
There are 5 air-conditioner sets, is respectively as follows: air-conditioning 1, air-conditioning 2, air-conditioning 3, air-conditioning 4, air-conditioning 5.There are every air-conditioner set a main receipts to connect
Mouth, a main hair interface, a spare receipts interface, a spare hair interface.In the present embodiment, main hair interface and main receipts connect
What mouth, spare receipts interface and spare hair interface used is optical fiber interface, and therefore, air-conditioning 1 to the main sending and receiving between air-conditioning 5 connects
Mouth is connected by main fiber, and air-conditioning 1 to the spare sending and receiving interface between air-conditioning 5 is connected by standby optical fiber, in this way communication speed
Degree is fast, and can detect the failure of corresponding interface by sending corresponding message.
This 5 air-conditioner sets can be connected between each air-conditioner set by its main sending and receiving interface and form principal communication channel,
5 air-conditioner sets connect the loop network to be formed along clockwise direction by principal communication channel.5 air-conditioner sets can also pass through
Its spare sending and receiving interface connects between each air-conditioner set forms alternate communication channels, and 5 air-conditioner sets pass through spare communication again
Channel connects the loop network to be formed in the counterclockwise direction, i.e. air-conditioner set is standby as each node in two loop networks
It is opposite with the transmit-receive position of main sending and receiving interface with the transmit-receive position of sending and receiving interface.As shown in Fig. 2, under normal circumstances, this 5
Air-conditioner set is sequentially connected with by principal communication channel to be formed loop network and is communicated, when normal communication, current loop network
Data flow is 1- > 2- > 3- > 4- > 5- > 1.When there is communication failure between two nodes, i.e., there is event in principal communication channel
Barrier, two nodes inform other nodes by principal communication channel and/or alternate communication channels at this time, then by enabling all
Or the spare transceiver interface of part of nodes carries out communications protection and switches to form at least one loop network and communicated.
Specifically how to find that communication failure occurs in node, in the embodiment of the present invention, in each inspection between two nodes
It surveys in the period and corresponding detection message is sent by principal communication channel and alternate communication channels respectively；Two nodes pass through acquisition pair
The detection message answered send or receive failure as a result, to determine whether there is communication failure.For example, air-conditioning 1 is connect by main hair
When mouth sends main receipts interface of the detection message to air-conditioning 2, air-conditioning 1 is source node at this time, and air-conditioning 2 is destination node.And air-conditioning 2 passes through
When spare hair interface sends spare receipts interface of the detection message to air-conditioning 1, air-conditioning 1 is destination node at this time, and air-conditioning 2 is source node.
When air-conditioning 2 be destination node, do not receive detection message within the predetermined time, then the master of air-conditioning 1 can be learnt or be to air-conditioning 2
There is failure or is that failure occurs in the main receipts interface of air-conditioning 2, and the main hair interface of air-conditioning 1 is not due to receiving in hair interface
To corresponding optical signal, it can also learn that failure occurs in the main hair interface of oneself, i.e., either any situation, as long as corresponding
Destination node (air-conditioning 2) do not receive corresponding detection message, can judge the principal communication channel between air-conditioning 1 and air-conditioning 2
There is failure.Equally, air-conditioning 1 is used as destination node, if not receiving the detection message of the transmission of air-conditioning 2, then air-conditioning 1 and air-conditioning
2 may determine that failure occur in the alternate communication channels between them.
It names the case where three examples are come to communication failure and the specific communications protection measure of switching is illustrated.
In the first instance, it will be assumed that single air-conditioning communication is broken down.Main hair interface (i.e. 2 direction of air-conditioning of air-conditioning 2
The originating party of air-conditioning 3 is upward) there is communication failure, i.e. there is failure in principal communication channel between air-conditioning 2 and air-conditioning 3, other are
Normally, air-conditioning 2 and air-conditioning 3 can inform other nodes by other normal principal communication channels and/or alternate communication channels
(air-conditioning 1, air-conditioning 4 and air-conditioning 5) corresponding fault message, it is (logical that fault message can specifically include failure air-conditioning ID, fault type
Believe failure or functional fault), fault detail information etc..It is that principal communication between air-conditioning 2 and air-conditioning 3 is logical that all nodes, which are both known about,
After road is out of joint, air-conditioning 1 to air-conditioning 5 is switched using communications protection at this time, is all switched to alternate communication channels, at this point,
Air-conditioning 1 is to the data flow direction of air-conditioning 5 with original completely on the contrary, being shown as counterclockwise communicating in figure, data flow is
2- > 1- > 5- > 4- > 3- > 2, optical loop are current normal.If the principal communication channel between all air-conditionings is all normal, some skies
There is failure in alternate communication channels between tune, and air-conditioning does not do any protection act yet at this time, but will record this information, example
If failure occur in the alternate communication channels between air-conditioning 1 and air-conditioning 2, then air-conditioning 1 and air-conditioning 2 record corresponding fault message.
In second example, if air-conditioning communication in many places is broken down.Such as there is communication event in the main hair interface of air-conditioning 2
There is communication failure in barrier, the main receipts interface of air-conditioning 5, and similarly, all nodes are also same progress communications protection switching action, no
It is all data flow 2- > 1- > 5- on alternate communication channels to be switched to that pipe, which has the principal communication channel of several air-conditionings to break down,
>4->3->2。
In third example, when certain or when the communication disengagement failure of more air-conditionings.Such as the main sending and receiving of air-conditioning 2 connect
Mouthful and after spare sending and receiving interface breaks down, i.e. principal communication channel between air-conditioning 2 and air-conditioning 1 and alternate communication channels
It breaks down, failure also has occurred in the principal communication channel and alternate communication channels between air-conditioning 2 and air-conditioning 3, and air-conditioning 2 is detached from loop
Network, at this point, air-conditioning 1 and air-conditioning 3 are sent out fault message by principal communication channel with other nodes and/or alternate communication channels
It is sent in loop network, makes that other air-conditioning nodes both know about the correspondence principal communication channel of air-conditioning 2 and alternate communication channels have occurred
Failure judges principal communication channel and the normal node number of segment of alternate communication channels for 1 section i.e. from air-conditioning 3, air-conditioning 4, sky at this time
Adjust 5 to arrive air-conditioning 1, then each section of node starting alternate communication channels and the principal communication channel between them be formed together one it is new
Loop network is communicated, and data flow is 3- > 4- > 5- > 1- > 5- > 4- > 3 at this time.If there is more air-conditionings departing from loop net
Network then and judges principal communication channel and the normal node number of segment of alternate communication channels, then to carry out corresponding operating, example again
Such as, air-conditioning 1 and air-conditioning 2 be because of corresponding failure, and departing from loop network, then principal communication channel and alternate communication channels are being just
Normal node number of segment is still 1 section, and air-conditioning 3 to air-conditioning 5 enables principal communication channel and the alternate communication channels between them simultaneously
Loop network to form new is communicated, data flow 3- > 4- > 5- > 4- > 3.When air-conditioning has 6, respectively air-conditioning 1 to
When air-conditioning 6, if air-conditioning 2 and air-conditioning 5 are simultaneously because communication failure is departing from loop network, then principal communication channel and spare communication are logical
The normal node number of segment in road is 2 sections, i.e., air-conditioning 3 and air-conditioning 4 are one section, and air-conditioning 1 and air-conditioning 6 are one section, at this time data flow
For 3- > 4- > 3,6- > 1- > 6.
After there is node failure in loop network, node can also be reported corresponding fault message to user, so as to
Maintenance personal can in time repair failure air-conditioning, restore the loop network of script.Network network through the invention is protected
The communication network of high failure tolerant rate may be implemented, it is ensured that the operation of system in maintaining method.
When thering is air-conditioner set functional fault occur in loop network, failure air-conditioning pass through immediately principal communication channel and/or
Alternate communication channels send fault message to loop network, can be according to event after the air-conditioning of other nodes receives fault message
Hinder information regulation power, maintains total output of entire loop network.For example, other nodes receive the event such as refrigeration (heating), air-supply
When barrier, then the power consumption undertaken by obtaining corresponding air-conditioner set calculates the power consumption for oneself needing to share, to calculate needs
It is increased to reach normal refrigeration (heating), air-supply and other effects when institute in the case where not causing system excess load for the power of adjusting
Power, and intelligently adjust load.User malfunction air-conditioning ID is reported simultaneously, and related maintenance personal is notified to repair failure air-conditioning
It is multiple.
The present invention is by setting loop network, it can be achieved that message channel open circuit protection, also according to breaking message, each point is empty
It adjusts and self-control can be achieved, under same refrigeration (heating) effect, each point air-conditioning carries out the adjusting of relevant temperature (wind-force), reaches
Effect before air-conditioning failure.So that not influencing client's use in the short time, client is caused to lose.And ring is constituted by optical fiber
The communication channel of road network, the characteristics of having accepted optical transport, stablize, and rapidly, over long distances, while can carry out ring of light communication and protect
Shield, has ensured air-conditioning communication, has kept product function more stable.Certainly, the present invention is other than applying in air-conditioning system, can be with
It applies in the system that other need long haul communication.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (10)
1. a kind of loop network guard method, which is characterized in that comprising steps of
Each node is in turn connected into the loop network communicated along first direction by principal communication channel；
Each node is connected into loop network along the second direction opposite with first direction by alternate communication channels again；
When occurring communication failure between node, communicated by enabling the alternate communication channels between all or part of node
Pretection switch forms at least one loop network and is communicated.
2. loop network guard method as described in claim 1, which is characterized in that when there is the principal communication channel between node to go out
The alternate communication channels of existing failure and whole are normal, then the loop network that whole node starting alternate communication channels are formed is led to
Letter.
3. loop network guard method as described in claim 1, which is characterized in that when the spare communication between two nodes is logical
Principal communication channel between road failure and two nodes is normal, then the corresponding fault message of two nodes records.
4. loop network guard method as described in claim 1, which is characterized in that when have the principal communication channel between node and
Alternate communication channels break down, then judge principal communication channel and the normal node number of segment of alternate communication channels, Mei Yiduan
Node starting alternate communication channels and the principal communication channel between them are formed together a loop network and are communicated.
5. loop network guard method as described in claim 1, which is characterized in that the principal communication channel and spare communication are logical
Road uses optical fiber interface.
6. loop network guard method as claimed in claim 5, which is characterized in that judge whether occur communication event between node
Barrier, specifically includes:
It is sent and is corresponded to by principal communication channel and alternate communication channels respectively in each detection cycle between adjacent node
Detection message；
Adjacent node by obtain it is corresponding detection message send or receive failure as a result, to determine whether occur communication therefore
Barrier.
7. loop network guard method as described in claim 1, which is characterized in that when there is communication failure between two nodes
When, after two nodes send fault message to loop network by principal communication channel and/or alternate communication channels, the whole
Or part of nodes executes communications protection switching operation again.
8. loop network guard method as claimed in any one of claims 1 to 7, which is characterized in that the node is air-conditioning
Unit.
9. loop network guard method as claimed in claim 8, which is characterized in that when thering is node functional fault occur in system
When, malfunctioning node sends fault message to other nodes by principal communication channel and/or alternate communication channels, other nodes according to
The fault message regulation power maintains total output of the loop network.
10. a kind of air-conditioning system, including several air-conditionings meet ancestral, which is characterized in that the air-conditioner set is as loop network
Each node executes the loop network guard method as described in claim 1 to 9 any one.
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| CN201910726769.4A CN110440391B (en) | 2019-08-07 | 2019-08-07 | Loop network protection method and air conditioning system |
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| CN201910726769.4A CN110440391B (en) | 2019-08-07 | 2019-08-07 | Loop network protection method and air conditioning system |
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Cited By (2)
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| CN116232465A (en) * | 2023-05-04 | 2023-06-06 | 艾乐德电子（南京）有限公司 | System and method for realizing multi-machine parallel operation redundancy by optical fiber annular communication |
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| CN110440391B (en) | 2020-10-27 |
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