CN105066324A - Communication method for multi-connected air conditioner - Google Patents
Communication method for multi-connected air conditioner Download PDFInfo
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- CN105066324A CN105066324A CN201510416117.2A CN201510416117A CN105066324A CN 105066324 A CN105066324 A CN 105066324A CN 201510416117 A CN201510416117 A CN 201510416117A CN 105066324 A CN105066324 A CN 105066324A
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- communication
- outdoor
- indoor set
- host computer
- air conditioner
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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
-
- 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
-
- 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)
- Physics & Mathematics (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Signal Processing (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention discloses a communication method for a multi-connected air conditioner. The communication method comprises the following steps of regular communication, interrupted communication, and interrupted communication and regular communication combining. According to the communication method for the multi-connected air-conditioner, regular communication and interrupted communication are combined for communication between an outdoor main unit and outdoor slave units and communication between the outdoor main unit and indoor units, so that the requirement for orderly communication data exchange between the outdoor main unit and the outdoor slave units and between the outdoor main unit and the indoor units can be met, important information (the on-off state, the set mode, the set wind speed, the set temperature, accidental shutdowns of the indoor units, accidental shutdowns of the outdoor units, centralized control over the outdoor units and the like) of the indoor units or the outdoor units can be rapidly sent to a specified target, the quick reaction capability of a control system is improved, and accordingly the air conditioner can well meet the requirements of users, and the use comfort of the users is improved.
Description
Technical field
The present invention relates to air-conditioning technical field, be specifically related to a kind of multi-connected air conditioner communication means.
Background technology
Due to the air-conditioning system that multi-connected air conditioning system is made up of with multiple stage indoor set an outdoor host computer (or an outdoor host computer and multiple stage are outdoor from machine).Therefore, in order to ensure to control whole air-conditioning system, every platform indoor set, every platform outdoor all must communicate with outdoor host computer from machine.Traditional communication mode adopts periodic communication, namely outdoor host computer respectively with every platform indoor set, outdoor from machine, according to the order communication cycle mode one to one that air-conditioning address is ascending, outdoor host computer and every platform outdoor from machine, every platform indoor set completes and once communicates is a control system communication cycle.First outdoor host computer ODU0 (address is set to E0) and indoor address be 1 indoor set (IDU1) communicate and carry out exchanges data; Then, outdoor host computer ODU0 and indoor address be 2 indoor set (IDU2) communicate and carry out exchanges data; Next, outdoor host computer ODU0 and indoor address be 3,4,5 ..., n indoor set communication carry out exchanges data; Finally, outdoor host computer ODU0 and outdoor address be E1, E2 ..., Em off-premises station communication carry out exchanges data.Complete a communication cycle circulation.Suppose in system operation, wherein a machine has special circumstances that (as: on-off state occurs, set model, wind speed setting, design temperature, indoor set disorderly closedown, off-premises station disorderly closedown, wherein any one changes off-premises station centralized Control etc.), owing to being periodic communication, the status information of self can not be sent to intended target by immediately, and when can only wait until that periodic communication takes turns to self transmission information, the status information of self could be sent to intended target, now likely through longer a period of time, intended target could change the running status of air-conditioning system according to the information received.So just cause and serious hysteresis quality is produced to whole airconditioning control, thus affect whole air-conditioning system reliability of operation, security.
Summary of the invention
Instant invention overcomes the deficiencies in the prior art, solve the control hysteresis sex chromosome mosaicism of multi-connected air conditioner because of the long generation of communication cycle, improve the quick-reaction capability of control system, meet consumers' demand well, a kind of multi-connected air conditioner communication means is provided.
For solving above-mentioned technical problem, the present invention by the following technical solutions:
A kind of multi-connected air conditioner communication means, described method comprises the following steps:
Periodic communication
Outdoor host computer successively with each indoor set, outdoor from machine, carry out man-to-man communication according to the order that air-conditioning address is ascending;
Interrupt communication
In indoor set state or off-premises station state, any one changes, and the indoor set that state changes or the off-premises station that state changes will shift to an earlier date active and send communication data on described outdoor host computer;
Interrupt communication is in conjunction with periodic communication
When indoor set state or off-premises station state constant time, multi-connected air conditioner adopt periodic communication; When in indoor set state or off-premises station state, any one changes, multi-connected air conditioner adopts interrupt communication.
Further technical scheme is that outdoor host computer is connected from machine, indoor set with outdoor by bus, and described outdoor host computer, outdoor all have unique air-conditioning address from machine, indoor set.
Further technical scheme is that addressing is continuously carried out in the outdoor air-conditioning address from machine.
Further technical scheme is the air-conditioning address implementation addressing continuously of indoor set.
Further technical scheme is in periodic communication, and the interval time that setting outdoor host computer sends communication data in bus is a fixing constant Td; In interrupt communication, the interval time initiatively sending communication data in advance in bus is a fixing constant Tz by the indoor set that set condition changes or the off-premises station that state changes; Then Tz<Td.
Further technical scheme is that indoor set state comprises: on-off state, set model, wind speed setting, design temperature, disorderly closedown.
Further technical scheme is that off-premises station state comprises disorderly closedown, centralized Control.
Compared with prior art, the invention has the beneficial effects as follows: outdoor host computer and outdoor are from machine, communication between indoor set, adopt periodic communication to combine with interrupt communication to communicate, outdoor host computer can either be met with outdoor from machine, carry out orderly communication data between indoor set to exchange, again can promptly by indoor set or off-premises station important information (on-off state, set model, wind speed setting, design temperature, indoor set disorderly closedown, off-premises station disorderly closedown, off-premises station centralized Control etc.) be promptly sent to intended target, improve the quick-reaction capability of control system, thus air-conditioning can be allowed to meet the demand of user well, improve the comfort of user.
Accompanying drawing explanation
Fig. 1 is that multi-connected air conditioner outdoor host computer in one embodiment of the invention, outdoor are from machine and indoor set communication connection schematic diagram.
Fig. 2 be in one embodiment of the invention multi-connected air conditioner outdoor host computer and outdoor from periodic communication schematic diagram between machine, indoor set.
Fig. 3 is that in one embodiment of the invention, multi-connected air conditioner outdoor host computer and outdoor to combine Principle of Communication figure from periodic communication between machine, indoor set, interrupt communication.
Detailed description of the invention
All features disclosed in this description, or the step in disclosed all methods or process, except mutually exclusive feature and/or step, all can combine by any way.
Arbitrary feature disclosed in this description (comprising any accessory claim, summary and accompanying drawing), unless specifically stated otherwise, all can be replaced by other equivalences or the alternative features with similar object.That is, unless specifically stated otherwise, each feature is an example in a series of equivalence or similar characteristics.
Below in conjunction with drawings and Examples, the specific embodiment of the present invention is described in detail.
As shown in Figure 1 to Figure 3, according to one embodiment of present invention, the present embodiment discloses a kind of multi-connected air conditioner communication means.In the present embodiment, comprise for a set of multi-connected air conditioning system: an outdoor host computer, 3 outdoors, from machine, 128 indoor sets, are described in detail.They are connected by bus, as shown in Figure 1, and wherein m=3, n=128.
As shown in Figure 2, after air-conditioning system powers on, outdoor host computer will carry out periodic communication with each outdoor from machine, each indoor set.Concrete communication process is as follows: 1, outdoor host computer ODU0 sends IDU1 periodic communication data to the indoor set IDU1 that indoor address is 1, after indoor set IDU1 receives the communication data that outdoor host computer ODU0 sends, send ODU0 periodic communication data to outdoor host computer ODU0; 2, outdoor host computer ODU0 sends IDU2 periodic communication data to the indoor set IDU2 that indoor address is 2, and indoor set IDU2 sends ODU0 periodic communication data to outdoor host computer ODU0 after receiving the communication data that outdoor host computer ODU0 sends; Continue successively in the manner described above, 3, outdoor host computer ODU0 sends IDU128 periodic communication data to the indoor set IDU128 that indoor address is 128, after indoor set IDU128 receives the communication data that outdoor host computer ODU0 sends, send ODU0 periodic communication data to outdoor host computer ODU0; 4, outdoor host computer ODU0 is that the outdoor of E1 sends ODU1 periodic communication data from machine ODU1 to outdoor address, outdoor receive from machine ODU1 the communication data that outdoor host computer ODU0 sends after, send ODU0 periodic communication data to outdoor host computer ODU0; 5, outdoor host computer ODU0 is that the outdoor of E2 sends ODU2 periodic communication data from machine ODU2 to outdoor address, outdoor receive from machine ODU2 the communication data that outdoor host computer ODU0 sends after, send ODU0 periodic communication data to outdoor host computer ODU0; 6, outdoor host computer ODU0 is that the outdoor of E3 sends ODU3 periodic communication data from machine ODU3 to outdoor address, outdoor receive from machine ODU3 the communication data that outdoor host computer ODU0 sends after, send ODU0 periodic communication data to outdoor host computer ODU0.Complete a communication cycle circulation.
As can be seen from Figure 2, outdoor host computer sends the shared call duration time T1=40ms of communication data (IDUn or ODUm periodic communication), commitment defini interval Td=10ms, outdoor from the shared call duration time T2=20ms of machine transmission communication data (ODU0 periodic communication), the shared call duration time T2=20ms of indoor set transmission communication data (ODU0 periodic communication); Then complete outdoor host computer and communicate the time used with an indoor set (or an outdoor is from machine) for (T1+Td+T2+Td)=80ms, complete all indoor sets and communicate the time used for (128+3) * 80=10480ms, about 10s with outdoor from machine.That is, after certain indoor set (or outdoor is from machine) has once communicated with outdoor host computer, could again communicate with outdoor host computer after this indoor set will wait until 10s.
Situation one: when after outdoor host computer ODU0 and indoor set IDU1 sign off, outdoor host computer ODU0 starts to communicate with indoor set IDU2, and when outdoor host computer ODU0 sends IDU2 periodic communication in bus, indoor set IDU1 changes to open state from off-mode.Owing to being periodic communication, indoor set IDU2 replys outdoor host computer ODU0 periodic communication, next be that outdoor host computer ODU0 communicates with indoor set IDU3, outdoor host computer ODU0 communicates with indoor set IDU4, after outdoor host computer ODU0 and indoor set ODU3 sign off, outdoor host computer ODU0 communicates again with indoor set IDU1.Now, the starting-up signal of oneself could be sent to outdoor host computer ODU0 by indoor set IDU1, but the time is closely indoor set IDU1 change to the 10s of open state from off-mode after, make whole air-conditioner control system produce serious hysteresis quality.Such outdoor host computer ODU0 can not obtain the starting-up signal of indoor set IDU1 as soon as possible, thus causes outdoor host computer ODU0 promptly can not adjust the ability need of air-conditioning system, can not meet consumers' demand.In order to overcome the hysteresis quality of the air-conditioning system that periodic communication causes, just a kind of interrupt communication need be introduced.
Preferably, adopt periodic communication to combine with interrupt communication to communicate.
Interrupt communication; namely special have special circumstances that (as: wherein any one changes for on-off state, set model, wind speed setting, design temperature, indoor set disorderly closedown, off-premises station disorderly closedown, off-premises station centralized Control etc.) occurs time, by occur special circumstances outdoor host computer, outdoor initiatively send communication data to bus from machine or indoor set at once.
Periodic communication combines with interrupt communication and communicates, as shown in Figure 3.The first step, outdoor host computer ODU0 sends IDU2 periodic communication in bus.Second step, now, indoor set IDU1 has special circumstances that (interrupt request generation) occurs, suspend periodic communication and enter interrupt communication, after outdoor host computer ODU0 transmission IDU1 periodic communication terminates the Tz=5ms time (Tz<Td), indoor set IDU1 initiatively sends ODU0 interrupt communication data in bus.Outdoor host computer ODU0 just immediately can receive the status information of indoor set IDU1 from bus.If after outdoor host computer ODU0 receives the communication data of indoor set IDU1, need to other outdoor from machine, indoor set or all outdoors from machine, indoor set send interrupt communication, then process according to the method for second step, and then enter the 3rd step; If outdoor host computer ODU0 without the need to other outdoor from machine, indoor set or all outdoors send interrupt communication from machine, indoor set, then enter the 3rd step.3rd step, after indoor set IDU1 transmission ODU0 interrupt communication terminates, the interval T d=10ms time, outdoor host computer ODU0 sends IDU2 periodic communication again in bus, get back to periodic communication, after indoor set (IDU2) receives IDU2 periodic communication, the interval T d=10ms time, ODU0 periodic communication is sent in bus, later IDU3, IDU4 to IDU128 successively, unless wherein certain air-conditioning has again special circumstances that (interrupt request generation) occurs, by the process of second step method, otherwise by periodic communication process.
Same for situation one, when after outdoor host computer ODU0 and indoor set IDU1 sign off, outdoor host computer ODU0 starts to communicate with indoor set IDU2, and when outdoor host computer ODU0 sends IDU2 periodic communication in bus, indoor set IDU1 changes to open state from off-mode.Owing to introducing interrupt communication, after indoor set IDU1 changes to open state from off-mode, produce interrupt request, now will suspend periodic communication under normal circumstances, and interval T z=5ms sends ODU0 interrupt communication by indoor set IDU1 in bus.The starting-up signal of oneself can be sent to outdoor host computer ODU0 by such indoor set IDU1 in maximum (T1+Tz+T2)=65ms, after outdoor host computer ODU0 receives starting-up signal, just can adjust the ability need of air-conditioning system at once.Machine IDU1 power-on event occurs to the process that whole air-conditioning system obtains respective handling indoor, can control within the 100ms time, thus avoids the system delay of 10s clock.
In like manner; when wherein any one state changes for set model, wind speed setting, design temperature, indoor set disorderly closedown, off-premises station disorderly closedown, off-premises station centralized Control etc.; also promptly the status information of change can be sent to intended target, and then control whole system in time.
The present invention adopts periodic communication to combine with interrupt communication and communicates: namely when without special circumstances (as: wherein any one changes for on-off state, set model, wind speed setting, design temperature, indoor set disorderly closedown, off-premises station disorderly closedown, off-premises station centralized Control etc.), outdoor host computer adopts periodic communication, the regular communication of air-conditioner control system with outdoor from communicating between machine, indoor set; When there being special circumstances that (as: wherein any one changes for on-off state, set model, wind speed setting, design temperature, indoor set disorderly closedown, off-premises station disorderly closedown, off-premises station centralized Control etc.) occurs; outdoor host computer adopts interrupt communication with outdoor from communicating between machine, indoor set; the status information of change promptly can be sent to intended target, realize the fast reaction function of air-conditioner control system.
After the communication mode that the periodic communication of multi-connected air conditioner control system in employing the present invention combines with interrupt communication, whole air-conditioning system can promptly be effectively controlled, thus improve air-conditioning system reliability of operation, security, promote user satisfaction.
Spoken of in this manual " embodiment ", " another embodiment ", " embodiment ", etc., refer to the specific features, structure or the feature that describe in conjunction with this embodiment and be included at least one embodiment of the application's generality description.Multiple place occurs that statement of the same race is not necessarily refer to same embodiment in the description.Furthermore, when describing specific features, structure or a feature in conjunction with any one embodiment, what advocate is also fall within the scope of the invention to realize this feature, structure or feature in conjunction with other embodiments.
Although with reference to the multiple explanatory embodiment of inventing, invention has been described here, but, should be appreciated that, those skilled in the art can design a lot of other amendment and embodiment, these amendments and embodiment will drop within spirit disclosed in the present application and spirit.More particularly, in the scope of the open claim of the application, multiple modification and improvement can be carried out to the building block of subject combination layout and/or layout.Except the modification of carrying out building block and/or layout is with except improvement, to those skilled in the art, other purposes also will be obvious.
Claims (7)
1. a multi-connected air conditioner communication means, is characterized in that: described method comprises the following steps:
Periodic communication
Outdoor host computer successively with each indoor set, outdoor from machine, carry out man-to-man communication according to the order that air-conditioning address is ascending;
Interrupt communication
In indoor set state or off-premises station state, any one changes, and the indoor set that state changes or the off-premises station that state changes will shift to an earlier date active and send communication data on described outdoor host computer;
Interrupt communication is in conjunction with periodic communication
When indoor set state or off-premises station state constant time, multi-connected air conditioner adopt periodic communication; When in indoor set state or off-premises station state, any one changes, multi-connected air conditioner adopts interrupt communication.
2. multi-connected air conditioner communication means according to claim 1, is characterized in that described outdoor host computer is connected from machine, indoor set with outdoor by bus, and described outdoor host computer, outdoor all have unique air-conditioning address from machine, indoor set.
3. multi-connected air conditioner communication means according to claim 2, is characterized in that addressing is continuously carried out from the air-conditioning address of machine in described outdoor.
4. multi-connected air conditioner communication means according to claim 2, is characterized in that addressing is continuously carried out in the air-conditioning address of described indoor set.
5. multi-connected air conditioner communication means according to claim 2, is characterized in that in described periodic communication, and the interval time that setting outdoor host computer sends communication data in bus is a fixing constant Td; In interrupt communication, the interval time initiatively sending communication data in advance in bus is a fixing constant Tz by the indoor set that set condition changes or the off-premises station that state changes; Then Tz<Td.
6. multi-connected air conditioner communication means according to claim 1, is characterized in that described indoor set state comprises: on-off state, set model, wind speed setting, design temperature, disorderly closedown.
7. multi-connected air conditioner communication means according to claim 1, is characterized in that described off-premises station state comprises disorderly closedown, centralized Control.
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| CN105588291A (en) * | 2016-03-10 | 2016-05-18 | 四川长虹电器股份有限公司 | Switching method for control host in ground source heat pump frequency-conversion multi-online air conditioner system |
| CN106023444A (en) * | 2016-05-13 | 2016-10-12 | 珠海格力电器股份有限公司 | Charge-by-household system of air conditioners |
| CN106452671A (en) * | 2016-09-28 | 2017-02-22 | 青岛海尔空调电子有限公司 | Internal unit and external unit communication method of multi-split air-conditioner |
| CN110160204A (en) * | 2019-06-11 | 2019-08-23 | 青岛海信日立空调系统有限公司 | Multi-online air-conditioning system control method and multi-online air-conditioning system |
| CN110173843A (en) * | 2019-05-21 | 2019-08-27 | 四川虹美智能科技有限公司 | A kind of multi-gang air-conditioner centralized control system and its control method |
| CN110319537A (en) * | 2019-07-12 | 2019-10-11 | 四川虹美智能科技有限公司 | Control method, host and the air-conditioning system of the bus communication of air-conditioning |
| CN112665035A (en) * | 2021-01-19 | 2021-04-16 | 青岛海信日立空调系统有限公司 | Multi-connected air conditioning system and control method thereof |
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| CN105588291A (en) * | 2016-03-10 | 2016-05-18 | 四川长虹电器股份有限公司 | Switching method for control host in ground source heat pump frequency-conversion multi-online air conditioner system |
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| CN110319537A (en) * | 2019-07-12 | 2019-10-11 | 四川虹美智能科技有限公司 | Control method, host and the air-conditioning system of the bus communication of air-conditioning |
| CN112665035A (en) * | 2021-01-19 | 2021-04-16 | 青岛海信日立空调系统有限公司 | Multi-connected air conditioning system and control method thereof |
| CN112665035B (en) * | 2021-01-19 | 2022-06-24 | 青岛海信日立空调系统有限公司 | Multi-connected air conditioning system and control method thereof |
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