CN1928445B - Multi-connected air conditioning unit and network communication method thereof - Google Patents
Multi-connected air conditioning unit and network communication method thereof Download PDFInfo
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- CN1928445B CN1928445B CN200510036984XA CN200510036984A CN1928445B CN 1928445 B CN1928445 B CN 1928445B CN 200510036984X A CN200510036984X A CN 200510036984XA CN 200510036984 A CN200510036984 A CN 200510036984A CN 1928445 B CN1928445 B CN 1928445B
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- 238000004891 communication Methods 0.000 title claims abstract description 29
- 238000000034 method Methods 0.000 title claims abstract description 13
- 238000004378 air conditioning Methods 0.000 title abstract description 5
- 230000008569 process Effects 0.000 claims abstract description 8
- 230000006855 networking Effects 0.000 claims description 4
- 238000005057 refrigeration Methods 0.000 abstract description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000002452 interceptive effect Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 1
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Abstract
The invention relates to the technical field of refrigeration equipment control, in particular to a multi-connected air conditioning unit and a network communication method thereof. A multi-connected air conditioning unit comprises an outdoor unit, an indoor unit, an integrated controller and a central processing unit, wherein the indoor unit comprises a manual operator and an indoor unit main control board; the manual operator performs operation processing on a client interface; the indoor unit main control board processes data and controls; the manual operator, the central processor of the indoor machine main control board and the centralized controller can directly exchange data. Any data required by the manual operator, the indoor unit main control board, the central processing unit and the centralized controller are not required to be transferred and processed by a third party, so that the process and result data exchange can be carried out in a time-saving and accurate manner, and the reliable operation of the air conditioner control system is ensured.
Description
Technical field
The present invention relates to a kind of refrigeration plant control technology field, particularly relate to the control and the network communication method thereof of the multi-joint unit of air-conditioning.
Background technology
The combined air conditioners unit is the most complicated type in air-conditioning the inside, and its control system control object is many, the exchanges data amount big, data timeliness and accuracy requirement height, and this has proposed high requirement to communication network between control system.Existing combined air conditioners unit comprises off-premises station, indoor set controller, Centralized Controller and central processing unit, and indoor set controller and Centralized Controller are control module.The indoor set controller is issued central processing unit to customer command and the system data collected, and central processing unit is handled the back data and execution result are issued indoor set controller and Centralized Controller, carries out processing execution respectively.Do not have the immediate data exchange between lower floor's performance element indoor set controller and the Centralized Controller, so a lot of data are not directly to arrive target, but need central processing unit to pass on.So just caused existing combined air conditioners unit that certain defective is being arranged aspect the processing of timeliness.Particularly when indoor set was a lot, the data transfer delay time was very obvious.
Summary of the invention
The purpose of this invention is to provide a kind of combined air conditioners unit of data transmission period weak point.
Another object of the present invention is to provide a kind of network communication method of above-mentioned combined air conditioners unit.
For achieving the above object, the present invention adopts following technical scheme:
A kind of combined air conditioners unit comprises off-premises station, indoor set, Centralized Controller and central processing unit, and described indoor set comprises manual operator and indoor set master control borad; Manual operator carries out the customer interface operational processes; The indoor set master control borad carries out data and handles and control and realize; Manual operator, indoor set master control borad, Centralized Controller and central processing unit can directly carry out exchanges data between any two.
Described manual operator, indoor set master control borad and Centralized Controller timesharing use bus to send data; Described multi-joint unit adopts the RS-485 communication modes, and wherein the net communication port adopts the MAX487E chip.
A kind of multi-connected air conditioner group network means of communication comprise:
The first step: first indoor set manual operator of central processing unit visit, judge whether the required data of indoor set manual operator are effective; If data effectively then send effective off-premises station data to the indoor set manual operator, this moment, Centralized Controller and first indoor set master control borad were collected simultaneously; Send last valid data to the indoor set manual operator if data are invalid, this moment, Centralized Controller and first indoor set master control borad were collected simultaneously;
Second step: first indoor set manual operator receive effective chamber outside and to reply first indoor set manual operator and to control content behind the machine data, and while Centralized Controller, first indoor set master control borad and central processing unit are collected simultaneously;
The 3rd step: finish first indoor set master control borad of visit in the same way;
The 4th step: first indoor set control module finishing the visit Centralized Controller in the same way;
The 5th step: repeat four steps of the first step to the and visit other indoor sets successively.
Compared with prior art, in combined air conditioners unit of the present invention, when any two control modules carry out exchanges data, other control module all is in accepting state, from LAN, obtain the data that oneself need, under the coordination of central processing unit, each control module timesharing uses bus to send data simultaneously.The required any data of above-mentioned control module are all without third party's processing of transferring.Solve the requirement of the exchanges data between many control modules like this, can save time and carry out the exchange of process and result data accurately, guaranteed the reliability service of air-conditioner control system simultaneously.
Description of drawings
Fig. 1 is the connection layout of combined air conditioners unit first embodiment of the present invention;
Fig. 2 is the combined air conditioners unit first embodiment network data transmission schematic diagram of the present invention;
Fig. 3 is combined air conditioners unit first embodiment host computer of the present invention and slave computer browsing process figure;
Fig. 4 is the connection layout of combined air conditioners unit second embodiment of the present invention.
The specific embodiment
A kind of combined air conditioners unit comprises off-premises station, indoor set, Centralized Controller and central processing unit.Described indoor set comprises manual operator and indoor set master control borad; Manual operator carries out the customer interface operational processes as man-machine interaction unit; The indoor set master control borad carries out data and handles and control and realize as performance element.In order to narrate conveniently, we are referred to as control module with described manual operator, indoor set master control borad and Centralized Controller in the specific embodiment.
Central processing unit is coordinated the exchanges data of all control modules.When any two control modules carried out exchanges data, other control module all was in accepting state, obtained the data that oneself need from LAN, and under the coordination of central processing unit, each control module timesharing uses bus to send data simultaneously.All without third party's processing of transferring, this has just realized the interactive network communication modes that we are required to the required any data of above-mentioned control module.
First embodiment
See also illustrated in figures 1 and 2ly, in the present embodiment, the combined air conditioners unit has 16 indoor sets.Whole communication system is by the central processing unit that is located in the off-premises station, a Centralized Controller, and 16 manual operators and 16 indoor set master control borads constitute.Wherein Centralized Controller comprises 16 indoor set control modules; The corresponding indoor set of each indoor set control module.
The central processing unit that is located in the off-premises station is a host computer, and all the other control modules are slave computer.Communication modes between described host computer and the described slave computer adopts the roll-call mode, makes central processing unit visit each indoor set successively.When central processing unit was visited each indoor set successively, central processing unit all must be visited manual operator, Centralized Controller, indoor set master control borad.The communication data transfer rate is 9600B/S in the present embodiment, and the visit time once is 30MS, and each packet is 10BYTE.
As shown in Figure 3, the process of central processing unit visit indoor set is as follows:
The first step: first indoor set manual operator of central processing unit visit, judge whether the required data of indoor set manual operator are effective, if data effectively then send effective off-premises station data to the indoor set manual operator, this moment, Centralized Controller and first indoor set master control borad were collected simultaneously, send last valid data to the indoor set manual operator if data are invalid, this moment, Centralized Controller and first indoor set master control borad were collected simultaneously;
Second step: first indoor set manual operator receive effective chamber outside and to reply first indoor set manual operator and to control content behind the machine data, and while Centralized Controller, first indoor set master control borad and central processing unit are collected simultaneously;
The 3rd step: finish first indoor set master control borad of visit in the same way;
The 4th step: first indoor set control module finishing the visit Centralized Controller in the same way;
The 5th step: repeat four steps of the first step to the and visit other indoor sets successively.
Combined air conditioners unit of the present invention adopts the RS-485 communication modes.The off-premises station mainboard adopts Mitsubishi M38039FFSP chip, with the UART1 mouth as this scheme off-premises station networking communication port; The indoor set mainboard adopts the UART mouth of Mitsubishi M38223M4 as this scheme indoor units net communication port; Manual operator adopts the UART mouth of Mitsubishi M38223M4 as this scheme indoor units net communication port; Centralized Controller adopts Mitsubishi M38039FFSP chip, with the UART1 mouth as this scheme networking communication port.Above-mentioned net communication port chip adopts the MAX487E chip of MAXIM company.
Second embodiment
Figure 4 shows that second kind of embodiment of combined air conditioners unit of the present invention, this combined air conditioners unit comprises 2 off-premises stations, 32 indoor sets, Centralized Controller and central processing units.Above-mentioned combined air conditioners chip that unit adopts is identical with first embodiment with communication modes, so do not give unnecessary details.
The present invention has introduced the combined air conditioners unit and the interactive network means of communication thereof, this can not be considered to the restriction to claim of the present invention, as the quantity of indoor set among the present invention can also be other 48,64 etc., off-premises station quantity can also be 3,4 etc., and the chip of various controllers also can be selected other companies for use.If those skilled in the art has made change unsubstantiality, conspicuous or improvement according to the present invention, all should belong to the scope of claim protection of the present invention.
Claims (10)
1. a combined air conditioners unit comprises off-premises station, indoor set, Centralized Controller and central processing unit, it is characterized in that: described indoor set comprises manual operator and indoor set master control borad; Manual operator carries out the customer interface operational processes; The indoor set master control borad carries out data and handles and control and realize; Manual operator, indoor set master control borad, Centralized Controller and central processing unit can directly carry out exchanges data between any two.
2. combined air conditioners unit according to claim 1 is characterized in that: described manual operator, indoor set master control borad and Centralized Controller timesharing use bus to send data.
3. combined air conditioners unit according to claim 2 is characterized in that: described central processing unit is located in the off-premises station.
4. combined air conditioners unit according to claim 2 is characterized in that: described Centralized Controller comprises the indoor set control module corresponding with indoor set.
5. combined air conditioners unit according to claim 2 is characterized in that: described multi-joint unit adopts the RS-485 communication modes.
6. according to each described combined air conditioners unit of claim 1 to 5, it is characterized in that: described off-premises station adopts the M38039FFSP chip, with the UART1 mouth as this scheme off-premises station networking communication port; Described indoor set control panel adopts the UART mouth of M38223M4 as this scheme indoor units net communication port; Described manual operator adopts the UART mouth of M38223M4 as this scheme indoor units net communication port; Described Centralized Controller adopts the M38039FFSP chip, with the UART1 mouth as this scheme networking communication port.
7. combined air conditioners unit according to claim 6 is characterized in that: described net communication port adopts the MAX487E chip.
8. combined air conditioners unit according to claim 1 and 2 is characterized in that: at least one of described off-premises station, indoor set are plural platform.
9. one kind according to each described multi-connected air conditioner group network means of communication of claim 1 to 8, comprising:
The first step: first indoor set manual operator of off-premises station visit, judge whether the required data of indoor set manual operator are effective, if data effectively then send effective off-premises station data to the indoor set manual operator, this moment, Centralized Controller and first indoor set master control borad were collected simultaneously, send last valid data to the indoor set manual operator if data are invalid, this moment, Centralized Controller and first indoor set master control borad were collected simultaneously;
Second step: first indoor set manual operator receive effective chamber outside and to reply first indoor set manual operator and to control content behind the machine data, and while Centralized Controller, first indoor set master control borad and off-premises station are collected simultaneously;
The 3rd step: finish first indoor set master control borad of visit in the same way;
The 4th step: first indoor set control module finishing the visit Centralized Controller in the same way;
The 5th step: repeat four steps of the first step to the and visit other indoor sets successively.
10. the multi-connected air conditioner group network means of communication according to claim 9 is characterized in that: described off-premises station visit first indoor set master control borad, first indoor set control module of Centralized Controller and the order of first indoor set manual operator can be changed arbitrarily.
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| CN200510036984XA CN1928445B (en) | 2005-09-05 | 2005-09-05 | Multi-connected air conditioning unit and network communication method thereof |
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| CN200510036984XA CN1928445B (en) | 2005-09-05 | 2005-09-05 | Multi-connected air conditioning unit and network communication method thereof |
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| CN1928445B true CN1928445B (en) | 2010-10-13 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10941955B2 (en) | 2017-10-27 | 2021-03-09 | Dometic Sweden Ab | Systems, methods, and apparatuses for providing communications between climate control devices in a recreational vehicle |
| US11254183B2 (en) | 2017-08-25 | 2022-02-22 | Dometic Sweden Ab | Recreational vehicle, cooling device, controlling system and method for controlling the cooling device |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104329769A (en) * | 2014-09-18 | 2015-02-04 | 青岛海尔空调器有限总公司 | Signal controller, signal control method and air treatment system |
| BR112017010501B1 (en) * | 2014-11-18 | 2022-12-27 | Toshiba Carrier Corporation | EXTERNAL UNIT |
| CN108562024B (en) * | 2018-04-18 | 2020-04-03 | 广东美的暖通设备有限公司 | Centralized control method and system for multi-split air conditioning system and computer readable storage medium |
| CN108931035B (en) * | 2018-07-30 | 2019-08-09 | 宁波奥克斯电气股份有限公司 | A kind of control method and device of air-conditioning real-time communication |
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| US5743101A (en) * | 1995-11-17 | 1998-04-28 | Mitsubishi Denki Kabushiki Kaisha | Air-conditioner |
| CN1301939A (en) * | 1999-12-24 | 2001-07-04 | 广东科龙空调器有限公司 | Network system for centrally controlled air conditioners |
| CN1357717A (en) * | 2000-12-05 | 2002-07-10 | 珠海格力电器股份有限公司 | Remote monitoring system for air conditioner |
| CN1412489A (en) * | 2001-10-17 | 2003-04-23 | 珠海格力电器股份有限公司 | air conditioner remote monitoring system with master-slave control function |
| CN1462854A (en) * | 2003-04-03 | 2003-12-24 | 江西吉佳科技有限公司 | Remote monitoring and controlling system for household central air conditioner |
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| US5743101A (en) * | 1995-11-17 | 1998-04-28 | Mitsubishi Denki Kabushiki Kaisha | Air-conditioner |
| CN1301939A (en) * | 1999-12-24 | 2001-07-04 | 广东科龙空调器有限公司 | Network system for centrally controlled air conditioners |
| CN1357717A (en) * | 2000-12-05 | 2002-07-10 | 珠海格力电器股份有限公司 | Remote monitoring system for air conditioner |
| CN1412489A (en) * | 2001-10-17 | 2003-04-23 | 珠海格力电器股份有限公司 | air conditioner remote monitoring system with master-slave control function |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US11254183B2 (en) | 2017-08-25 | 2022-02-22 | Dometic Sweden Ab | Recreational vehicle, cooling device, controlling system and method for controlling the cooling device |
| US11919363B2 (en) | 2017-08-25 | 2024-03-05 | Dometic Sweden Ab | Recreational vehicle, cooling device, controlling system and method for controlling the cooling device |
| US10941955B2 (en) | 2017-10-27 | 2021-03-09 | Dometic Sweden Ab | Systems, methods, and apparatuses for providing communications between climate control devices in a recreational vehicle |
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Inventor after: Jin Guohua Inventor after: Wu Gui Inventor after: Wang Wencan Inventor after: Lv Xiangqian Inventor after: Lin Chenglin Inventor after: Xiao Huanming Inventor before: Tan Jianming Inventor before: Jiang Canhua Inventor before: Feng Yujie Inventor before: Chen Dongliang |
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Free format text: CORRECT: INVENTOR; FROM: TAN JIANMING JIANG CANHUA FENG YUJIE CHEN DONGLIANG TO: JIN GUOHUA WU GUI WANG WENCAN LV XIANGQIAN LIN CHENGLIN XIAO HUANMING |