CN106453019A - Communication method of multiple online internal and external machines - Google Patents
Communication method of multiple online internal and external machines Download PDFInfo
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- CN106453019A CN106453019A CN201610816146.2A CN201610816146A CN106453019A CN 106453019 A CN106453019 A CN 106453019A CN 201610816146 A CN201610816146 A CN 201610816146A CN 106453019 A CN106453019 A CN 106453019A
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Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/40—Bus networks
- H04L12/403—Bus networks with centralised control, e.g. polling
-
- 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
-
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/40—Bus networks
- H04L12/40143—Bus networks involving priority mechanisms
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L43/00—Arrangements for monitoring or testing data switching networks
- H04L43/10—Active monitoring, e.g. heartbeat, ping or trace-route
- H04L43/103—Active monitoring, e.g. heartbeat, ping or trace-route with adaptive polling, i.e. dynamically adapting the polling rate
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L47/00—Traffic control in data switching networks
- H04L47/10—Flow control; Congestion control
- H04L47/24—Traffic characterised by specific attributes, e.g. priority or QoS
- H04L47/2425—Traffic characterised by specific attributes, e.g. priority or QoS for supporting services specification, e.g. SLA
- H04L47/2433—Allocation of priorities to traffic types
-
- 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
Abstract
The invention discloses a communication method of multiple online internal and external machines. One external machine and multiple internal machines are contained. The communication method of the internal and external machines comprises the following steps: (1) grading data in the internal machines; (2) determining sending frequency of each grade according to the level of the grade; (3) sending all data in one grade in each turn of communication of the internal machines, determining a communication turn number of each grade within one communication period according to the sending frequency, and determining the communication sequence of each grade within one communication period according to the level of the grade; and (4) after the external machine sends a query message, sending the data to the external machine by the internal machines according to the communication sequence of each grade and the communication turn number of each grade within one communication period determined in step (3) for reply. According to the communication method of multiple online internal and external machines disclosed by the invention, the communication mode is more flexible, the system response speed can be greatly improved, and the communication anti-interference ability is improved.
Description
Technical field
The present invention relates to air-conditioning communication technical field, specifically, it is to be related to a kind of multi-connected machine internal-external machine communication means.
Background technology
In multiple on-line system, generally outer machine connects multiple interior machines, and every interior machine all comprises state, temperature, humidity, various biography
Sensor, the parameter of valve need to transmit in communication process.In a wheel communication, outer machine is main equipment, oneself data or refer to
After order is dealt on communication bus, in the data is activation of oneself to communication bus, outer machine carries out detection and receives every interior wheel stream.
Such as system is connected to 10 interior machines, then a wheel internal-external machine communication process is：Machine in machine 3 in machine 2 in machine 1 in outer machine
Machine 10 in machine 9 in machine 8 in machine 7 in machine 6 in machine 5 in 4.
Because interior board number is many, internal-external machine one wheel call duration time can be long.Therefore, how to lift internal-external machine communication speed
Become Research Emphasis.Common practice is to improve hardware performance, accelerates data transfer rate, and the response speed of system is accelerated, should
The defect of the mode of kind is on the one hand to improve hardware to increase cost, is on the other hand affected by the surrounding environment, speed is more fast more holds
It is vulnerable to various interference, lead to data transmission error.
Content of the invention
The present invention is longer in order to solve existing internal-external machine one wheel call duration time, if being improved by raising hardware performance
Cause to increase cost and increase the problem of data transmission error rate it is proposed that a kind of multi-connected machine internal-external machine communication means, permissible
Solve the above problems.
In order to solve above-mentioned technical problem, the present invention employs the following technical solutions and is achieved：
A kind of multi-connected machine internal-external machine communication means, including machine in an outer machine and several, described internal-external machine communication means includes
Following steps：
（1）, by the data divided rank in interior machine, each grade includes a type or polytype data；
（2）, in units of positioned at the interior machine data of same grade, according to the rank of described grade determine each grade transmission frequency
Secondary；
（3）, interior machine often take turns communication send one of grade in all data, according to described transmission the frequency determine a communication
The communication wheel number of each grade in cycle, the rank according to described grade determines the communication sequence of each grade in a communication cycle,
Described communication cycle at least completes the wheel communication time used by gradational interior machine data；
（4）, after outer machine sends inquiry message, interior machine is according to step（3）In determined by the communication sequence of each grade and one
In communication cycle, the communication wheel number poll of each grade sends to outer machine, carries out response.
Further, in step（4）The communication of arbitrary wheel initial, described interior machine first determines whether that present communications will send number
According to grade, find out all data in the grade that present communications will send data as data to be sent, Ran Housuo
Have interior machine in order by data is activation to be sent in machine in this to outer machine.
Further, in step（4）A wheel communication in, also include interior machine and epicycle communicate machine data to be sent in this
The step being compared with the data that machine is sent in this during previous round communicates corresponding to present level, if both are inconsistent,
Normal send complete Frame, otherwise, the epicycle machine data to be sent in this that communicates is compressed sending.
Further, in step（4）One wheel communication in, the method that data to be sent is compressed is：Will be pending
One condition code of the data genaration sending, and this feature code is sent to outer machine.
Further, described document information is calculated using computing formula for interior machine, after described outer machine receives described document information, right
In previous round communication corresponding to present level, the partial data of this interior machine, calculates first condition code using same computing formula, and
Described head condition code is compared with described document information, if unanimously, confirms that the described interior machine data of epicycle communication does not change,
Otherwise outer machine notifies to send the interior machine of condition code, needs to send complete data in the next round communication corresponding in present level
Frame.
Further, step（1）The middle foundation by the data divided rank in interior machine requires to real-time property for outer machine
Just, requirement of real-time is higher, and appropriate level is higher, and the communication sequence of this grade is more forward.
Compared with prior art, advantages of the present invention and good effect are：The multi-connected machine internal-external machine communication means of the present invention,
By carrying out grade classification process to communication data, often wheel poll only sends the data of all interior machine in same grade,
Data volume reduces, and shortens the call duration time often taking turns communication, and because the data volume of every wheel communication reduces, even epicycle data
It is interfered, at most give up the data of epicycle communication, other data will not be impacted, can be prevented effectively from prior art
All communication datas of machine in transmission in one wheel communication, lead to wherein one local error to need to give up institute because transmission data is more
There is the problem of data, this communication mode is more flexible, can greatly improve system response time and improve anti-the doing that communicate
Disturbing ability, additionally, passing through divided rank, and giving the communication frequency respectively for each grade, can be according to communication actual requirement logarithm
According to make communication sequencing and communication frequency divided so that communicate more directly, efficient.
After the detailed description of embodiment of the present invention is read in conjunction with the accompanying, the other features and advantages of the invention will become more
Plus it is clear.
Brief description
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
Have technology description in required use accompanying drawing be briefly described it should be apparent that, drawings in the following description be only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, acceptable
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is a kind of embodiment flow chart of multi-connected machine internal-external machine communication means proposed by the invention.
Specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation description is it is clear that described embodiment is only a part of embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of not making creative work
Embodiment, broadly falls into the scope of protection of the invention.
Embodiment one, the present embodiment proposes a kind of multi-connected machine internal-external machine communication means, including an outer machine and several
Interior machine, as shown in figure 1, described internal-external machine communication means comprises the following steps：
S1, by the data divided rank in interior machine, each grade includes a type or polytype data；
S2, in units of positioned at the interior machine data of same grade, determine the transmission frequency of each grade according to the rank of described grade；
All data that communication sends in one of grade often taken turns by S3, interior machine, determine a communication according to the described transmission frequency
The communication wheel number of each grade in cycle, the rank according to described grade determines the communication sequence of each grade in a communication cycle,
Described communication cycle at least completes the wheel communication time used by gradational interior machine data；
After S4, outer machine send inquiry message, interior machine is according to the communication sequence of each grade determined by step 3 and a communication
In cycle, the communication wheel number poll of each grade sends to outer machine, carries out response.
For example, the data of every interior machine can be divided into running status, sensor, configuration parameter three types.Running status
It is requirement of real-time highest, the operation mode of such as air-conditioning（Refrigeration still heats）, wind speed, design temperature etc., these data
It is that controller is frequently necessary to control, is exposed directly to user.Next to that sensor class, including temperature-humidity sensor, expansion
Valve etc., these data variation are relatively slow, are primarily used to supervisory control system running situation.Configuration parameter is typically some and dispatches from the factory
Or the data just fixed after field adjustable, such as ability number, interior machine type etc..
If interior machine parameter 60 altogether, wherein running status 20, sensor 30, configuration parameter 10, by type
After division, the data volume of every frame significantly reduces, and improves communication anti-interference capability.
The multi-connected machine internal-external machine communication means of the present embodiment, by grade classification process is carried out to communication data, often wheel wheel
Ask the data only sending all interior machine being located in same grade, data volume reduces, and shortens the call duration time often taking turns communication, and
Data volume due to every wheel communication reduces, and even epicycle data is interfered, and at most gives up the data of epicycle communication, will not be right
Other data impact, and can be prevented effectively from all communication datas of machine in transmission in a wheel communication in prior art, due to
Transmission data is more to lead to wherein one local error to need to give up the problem of all data, and this communication mode is more flexible, permissible
Greatly improving system response time, additionally, passing through divided rank, and giving the communication frequency respectively for each grade, can basis
Communication actual requirement makes communication sequencing to data and communication frequency is divided so that being communicated more directly, efficiently.
Initial in arbitrary wheel communication of step S4, described interior machine first determines whether that present communications will send the grade of data,
Find out all data in the grade that present communications will send data as data to be sent, then all interior machines according to
Order is by data is activation to be sent in machine in this to outer machine.
After outer machine sends inquiry, interior machine data classifying type, timesharing response.The high real-time property of rating is high, improves
The response frequency, and the low data of rating reduces the response frequency.Have as a example 10 interior machines by system, communication process is similar to such as
Lower process：
Machine 2 state ... interior machine 10 state (the 1st wheel) in machine 1 state in outer machine
Machine 2 state ... interior machine 10 state (the 2nd wheel) in machine 1 state in outer machine
…
Machine 2 state ... interior machine 10 state (the i-th wheel) in machine 1 state in outer machine
Machine 2 sensor ... interior machine 10 sensor (i+1 wheel) in machine 1 sensor in outer machine
Machine 2 state ... interior machine 10 state (the i-th+2 wheel) in machine 1 state in outer machine
…
Machine 2 shape ＄ sensor ... interior machine 10 sensor (jth+1 wheel) in machine 1 state in outer machine
Machine 2 state ... interior machine 10 state (jth+2 wheel) in machine 1 state in outer machine
…
Machine 2 state ... interior machine 10 state (kth wheel) in machine 1 state in outer machine
Machine 2 configuration parameter ... interior machine 10 configuration parameter (kth+1 wheel) in machine 1 configuration parameter in outer machine
Machine 2 state ... interior machine 10 state (kth+2 wheel) in machine 1 state in outer machine
…
If the internal-external machine communication one wheel time is 5 seconds, machine response primary transducer class data in 1 minute, in 5 minutes
Configuration parameter of machine response, other time response running state data.Internal-external machine communication in such 10 minutes has carried out 10*60 altogether
÷ 5=120 takes turns, and wherein interior machine sends sensing data 10 times, send configuration parameter 2 times, and sends the common 120- of running state data
10-2=108 time, the transmission of running state data can be significantly improved, accelerate the response speed of system.
In order to reduce each data volume taking turns transmission in communication further, in a wheel communication of step S4, also include interior
Epicycle is communicated machine data to be sent in this and the data that machine is sent in this during previous round communicates corresponding to present level by machine
The step being compared, if both are inconsistent, normal send complete Frame, otherwise, will be pending for the epicycle machine in this that communicates
The data sent is compressed sending.Within as a example machine running status, if in certain wheel internal-external machine communication, interior machine is first normal to be sent,
During next round communication, if all state parameters of machine all issued the consistent of outer machine with last time in this, it is compressed sending, such as
Sometime operation mode changes fruit, such as is changed to heat by refrigeration, then running state data needs complete transmitting, next
During wheel communication, if be consistent again, it is compressed again sending.
So-called compression sends, and refers to reduce data volume as far as possible, can represent multiple data with a data.Use special mark
1 or 2 bytes of will just can represent the N number of byte of multiple data of last time, with the information that minimum byte representation is enough.
In a wheel communication of step S4, the method that data to be sent is compressed is：By data life to be sent
Become a condition code, and this feature code is sent to outer machine.
When compression sends, only dated distinctive mark character in Frame, not status data.Outer machine receives this special mark
Will character, it can be determined that the status data going out interior machine does not change, still stores original interior machine state.Therefore, if logical in a wheel
In letter, the data that interior machine data to be sent is sent with previous round does not change, and the data with sending out outer machine in the past is one
Cause, just issue outer machine again without all of parameter, but send a distinctive mark, indicate that data does not become to outer machine
Change, outer machine be continuing with before interior machine data, so can send out data less a lot, therefore can improve system response further
Speed.
In order to ensure interior machine correct judgment, prevent communication error, outer machine needs the unchanged conclusion of data that internal machine is made
Make and confirming further, to improve data communication quality, condition code is calculated using computing formula for interior machine, and described outer machine receives institute
After stating condition code, the partial data of this interior machine during previous round corresponding to present level is communicated, calculated using same computing formula
Inform against condition code, and described head condition code is compared with described document information, if unanimously, confirm the epicycle described interior machine of communication
Data does not change, and otherwise outer machine notifies to send the interior machine of condition code, needs in the next round communication corresponding in present level
Send complete Frame.
The interior machine simultaneously malfunctioning may be one or more, and outer machine, can be by broadcast when notifying the interior machine of error
Notify all interior machines or mode of unicast to notify the interior machine of certain or some errors, need this interior machine to send normal data next time
Frame.
In step S1, the foundation of the data divided rank in interior machine is required height, real-time for outer machine to real-time property
Require higher, appropriate level is higher, and the communication sequence of this grade is more forward.
This communication means is not related to the improvement to hardware, therefore can solve to pass through at present to improve hardware solution communication speed
All drawbacks brought and deficiency.
Certainly, described above is not limitation of the present invention, and the present invention is also not limited to the example above, and this technology is led
Change, remodeling, interpolation or replacement that the those of ordinary skill in domain is made in the essential scope of the present invention, also should belong to this
Bright protection domain.
Claims (6)
1. a kind of multi-connected machine internal-external machine communication means it is characterised in that include outer machine with several in machine, described internal-external machine
Communication means comprises the following steps：
（1）, by the data divided rank in interior machine, each grade includes a type or polytype data；
（2）, in units of positioned at the interior machine data of same grade, according to the rank of described grade determine each grade transmission frequency
Secondary；
（3）, interior machine often take turns communication send one of grade in all data, according to described transmission the frequency determine a communication
The communication wheel number of each grade in cycle, the rank according to described grade determines the communication sequence of each grade in a communication cycle,
Described communication cycle at least completes the wheel communication time used by gradational interior machine data；
（4）, after outer machine sends inquiry message, interior machine is according to step（3）In determined by the communication sequence of each grade and one
In communication cycle, the communication wheel number poll of each grade sends to outer machine, carries out response.
2. multi-connected machine internal-external machine communication means according to claim 1 is it is characterised in that in step（4）Arbitrary wheel lead to
Letter is initial, and described interior machine first determines whether that present communications will send the grade of data, finds out and will send number positioned at present communications
According to grade in all data as data to be sent, then data to be sent in machine in this is sent out by all interior machines in order
Deliver to outer machine.
3. multi-connected machine internal-external machine communication means according to claim 2 is it is characterised in that in step（4）One wheel communication
In, also include interior machine and epicycle communicates in this machine data to be sent and machine institute in this during previous round communicates corresponding to present level
The step that the data sending is compared, if both are inconsistent, the complete Frame of normal transmission, otherwise, epicycle is communicated
In this, machine data to be sent is compressed sending.
4. multi-connected machine internal-external machine communication means according to claim 3 is it is characterised in that in step（4）One wheel communication
In, the method that data to be sent is compressed is：By one condition code of data genaration to be sent, and this feature code is sent out
Deliver to outer machine.
5. multi-connected machine internal-external machine communication means according to claim 4 is it is characterised in that described document information is interior machine employing
Computing formula calculates, and after described outer machine receives described document information, during previous round corresponding to present level is communicated, this interior machine is complete
Entire data, calculates first condition code using same computing formula, and described head condition code is compared with described document information, such as
Fruit is consistent, confirms that the described interior machine data of epicycle communication does not change, otherwise outer machine notifies to send the interior machine of condition code, current etc.
Need to send complete Frame in next round communication corresponding to level.
6. the multi-connected machine internal-external machine communication means according to any one of claim 1-5 is it is characterised in that step（1）Middle general
The foundation of the data divided rank in interior machine requires height for outer machine to real-time property, and requirement of real-time is higher, appropriate level
Higher, the communication sequence of this grade is more forward.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610816146.2A CN106453019A (en) | 2016-09-12 | 2016-09-12 | Communication method of multiple online internal and external machines |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610816146.2A CN106453019A (en) | 2016-09-12 | 2016-09-12 | Communication method of multiple online internal and external machines |
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Family
ID=58169006
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| CN201610816146.2A Pending CN106453019A (en) | 2016-09-12 | 2016-09-12 | Communication method of multiple online internal and external machines |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107231281A (en) * | 2017-06-26 | 2017-10-03 | 珠海格力电器股份有限公司 | Air-conditioning system and its data transmission method and device |
| CN108800455A (en) * | 2018-04-13 | 2018-11-13 | 珠海格力电器股份有限公司 | The control method and central coordinator of air-conditioner set, air-conditioner set |
| CN111371660A (en) * | 2020-03-13 | 2020-07-03 | 珠海格力电器股份有限公司 | Data acquisition method and device for improving balance and multi-split system |
| CN112283886A (en) * | 2020-10-13 | 2021-01-29 | 珠海格力电器股份有限公司 | Control method and device of multi-connected air conditioning unit and multi-connected air conditioning unit |
| CN112611083A (en) * | 2020-11-20 | 2021-04-06 | 青岛海尔空调电子有限公司 | Multi-split internal and external machine communication method and multi-split machine |
| CN112611016A (en) * | 2020-11-23 | 2021-04-06 | 青岛海尔空调电子有限公司 | Multi-split multi-split outdoor unit communication method and multi-split unit |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107231281A (en) * | 2017-06-26 | 2017-10-03 | 珠海格力电器股份有限公司 | Air-conditioning system and its data transmission method and device |
| CN107231281B (en) * | 2017-06-26 | 2019-11-08 | 珠海格力电器股份有限公司 | Air-conditioning system and its data transmission method and device |
| CN108800455A (en) * | 2018-04-13 | 2018-11-13 | 珠海格力电器股份有限公司 | The control method and central coordinator of air-conditioner set, air-conditioner set |
| CN108800455B (en) * | 2018-04-13 | 2023-06-06 | 珠海格力电器股份有限公司 | Air conditioning unit, control method of air conditioning unit and central coordinator |
| CN111371660A (en) * | 2020-03-13 | 2020-07-03 | 珠海格力电器股份有限公司 | Data acquisition method and device for improving balance and multi-split system |
| CN112283886A (en) * | 2020-10-13 | 2021-01-29 | 珠海格力电器股份有限公司 | Control method and device of multi-connected air conditioning unit and multi-connected air conditioning unit |
| CN112611083A (en) * | 2020-11-20 | 2021-04-06 | 青岛海尔空调电子有限公司 | Multi-split internal and external machine communication method and multi-split machine |
| WO2021233475A1 (en) * | 2020-11-20 | 2021-11-25 | 青岛海尔空调电子有限公司 | Communication method for indoor and outdoor units of multi-split air conditioner, and multi-split air conditioner |
| CN112611083B (en) * | 2020-11-20 | 2022-07-12 | 青岛海尔空调电子有限公司 | Multi-split internal and external machine communication method and multi-split machine |
| CN112611016A (en) * | 2020-11-23 | 2021-04-06 | 青岛海尔空调电子有限公司 | Multi-split multi-split outdoor unit communication method and multi-split unit |
| WO2022068278A1 (en) * | 2020-11-23 | 2022-04-07 | 青岛海尔空调电子有限公司 | Outdoor unit communication method of several-driven-several multi-split air conditioner and several-driven-several multi-split air conditioner |
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Application publication date: 20170222 |