CN102721144A - Control method of refrigerant distributor of air-conditioner unit - Google Patents
Control method of refrigerant distributor of air-conditioner unit Download PDFInfo
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- CN102721144A CN102721144A CN2012102173379A CN201210217337A CN102721144A CN 102721144 A CN102721144 A CN 102721144A CN 2012102173379 A CN2012102173379 A CN 2012102173379A CN 201210217337 A CN201210217337 A CN 201210217337A CN 102721144 A CN102721144 A CN 102721144A
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- indoor set
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Abstract
The invention provides a control method of a refrigerant distributor of an air-conditioner unit, comprising the following steps of: (1) presetting hardware connection; (2) judging the access state; (3) converting protocol codes; (4) calculating analysis parameters; and (5) starting control drive. The control method provided by the invention has the advantages that the refrigerant distributor can be connected with an air-conditioner indoor unit with two communication modes such as strong-current communication and bus communication; after being matched with factors in the other aspects, a household air conditioner and a commercial air conditioner can be interactively connected and are controlled for use, so that repeated setting and resource waste of production toolings, tools and offsite debugging toolings and tools are avoided; and simultaneously, the types of products are expanded, the cost for technical development is also reduced and the period for research and development is shortened.
Description
Technical field
The present invention relates to a kind of air-conditioning unit, be specifically related to the control method of air-conditioning unit coolant distributor, belong to the air-conditioning production technical field.
Background technology
At present, in the family expenses air-conditioning, the communication mode commonly used between indoor set and the off-premises station is " forceful electric power communication ", promptly comes out one the tunnel to become holding wire and power supply " zero line " and constitute the loop and carry out the communication signal transmission from power supply " live wire " dividing potential drop; In business air conditioner, the communication mode commonly used between indoor set and the off-premises station is " bus communication ", promptly carries out the communication signal transmission through proprietary two lines (light current).
In VRF Air Conditioning System or home unit unit; The refrigerants that adopt assemblies such as electric expansion valve or throttle capillary tube to carry out each indoor set distribute more; Electric expansion valve or throttle capillary tube as with different communication type indoor sets all move on in the coolant distributor; The cost that not only can effectively practice thrift indoor set helps the environmental protection noise reduction again, the expansion that more can carry out the indoor set type with freely be connected.But existing coolant distributor is only supported single communication mode, does not support hybrid junction, and algorithm requires singlely to input parameter, and can not expand, and has limited the cost control and the adaptability of whole unit.
Under the situation of air conditioner industry keen competition at present, products such as coolant distributor are only supported the present situation of single communication mode, make to be difficult to connect between the product of different company to use, and can't carry out strategic cooperation and technological innovation; " forceful electric power communication " and " bus communication " be each tool advantage on family expenses air-conditioning and business air conditioner respectively; But be difficult to cooperatively interact when forming the air-conditioning unit, even also can produce waste and product type overlapping of communication resources between the different product of same companies; Simultaneously, can cause production frock, instrument and factory's investigation mission outside the city or town trial work dress, instrument repeat be provided with and the wasting of resources.
Summary of the invention
Deficiency to the prior art existence; Technical problem to be solved by this invention is; A kind of air-conditioning unit coolant distributor control method is provided; Make coolant distributor can connect the indoor apparatus of air conditioner that communication mode is forceful electric power communication and two kinds of communication modes of bus communication, carry out the distribution of the refrigerant between each indoor set in the air conditioner group system according to the data message under the different agreement.
For solving the problems of the technologies described above, the technical scheme that the present invention taked is that a kind of air-conditioning unit coolant distributor control method may further comprise the steps:
(1) preset hardware connects: indoor set type and numbering that access is set on the toggle switch in the coolant distributor electric-controlled box; And carry out hardware according to numbering and connect; Adopt the indoor set data input pin of forceful electric power communication mode to insert the external interrupt port, and adopt the indoor set data input pin of bus communication mode to insert standard SCI port;
(2) judge access state: the triggering through the external interrupt port judges whether to insert indoor set and the access address that adopts the forceful electric power communication mode; Interruption through standard SCI port judges whether to insert indoor set and the access address that adopts the bus communication mode;
(3) protocol code conversion: if insert the indoor set that adopts the forceful electric power communication mode, after then coolant distributor carried out the algorithm conversion, transmission information was given off-premises station; Then give off-premises station if insert the indoor set that adopts the bus communication mode by directly forwarding information of coolant distributor;
(4) computational analysis parameter: the PID that carries out electronic expansion valve opening according to indoor set information by off-premises station calculates, and then data result is sent to coolant distributor;
(5) start-up control drives: carry out the aperture fine setting by coolant distributor according to indoor set information and draw final opening value; Drive the folding of electric expansion valve then, other communication informations then directly are transmitted to each indoor set by coolant distributor according to different communications protocol codings.
Above-mentioned air-conditioning unit coolant distributor control method; In step (3) the protocol code conversion, it is to send to off-premises station after substituting formation unified systematic parameter in back according to the The Fitting Calculation that the information that indoor set provides is carried out parameter with variable that coolant distributor carries out the algorithm conversion.
The present invention has following advantage and useful technique effect:
1, the present invention can support that communication mode is the indoor apparatus of air conditioner hybrid junction coolant distributor of forceful electric power communication or bus communication, is applicable to the domestic air conditioning (forceful electric power communication) and the conversion of the communication between the business air conditioner (bus communication) of present sale.
2, the present invention can make domestic air conditioning and business air conditioner after the factor of having mated others; Can connect, control use alternately; No longer simple be confined to domestic air conditioning or business air conditioner, avoid production frock, instrument and factory's investigation mission outside the city or town trial work dress, instrument repeat be provided with and the wasting of resources, expanded Products in Series kind and product line simultaneously; Reduce the technological development cost, shortened the R&D cycle.
3, the present invention substitutes through The Fitting Calculation and the variable that coolant distributor carries out data; The parameter that two kinds of agreements is related is corresponding fully or substitute; Realize the intertranslation of information data between forceful electric power communication mode and the bus communication mode, the stability of effectively assurance system operation.
Description of drawings
Fig. 1 is that communication of the present invention concerns block diagram;
Flow chart when Fig. 2 inserts the indoor set that adopts the bus communication mode for coolant distributor;
Flow chart when Fig. 3 inserts the indoor set that adopts the forceful electric power communication mode for coolant distributor.
The specific embodiment
The air-conditioning unit coolant distributor control method of present embodiment may further comprise the steps:
(1) preset hardware connects:
The indoor set type and the numbering of access are set on the toggle switch in the coolant distributor electric-controlled box; And carry out hardware according to numbering and connect; As shown in Figure 1; Adopt the indoor set data input pin of forceful electric power communication mode to insert the external interrupt port, and adopt the indoor set data input pin of bus communication mode to insert standard SCI port;
(2) judge access state: the triggering through the external interrupt port judges whether to insert indoor set and the access address that adopts the forceful electric power communication mode, and the communication mode of forceful electric power communication is as shown in table 1; Interruption through standard SCI port judges whether to insert indoor set and the access address that adopts the bus communication mode, and the communication mode of bus communication is as shown in table 2;
The communication mode of table 1 forceful electric power communication
| NO | Project | Content |
| 1 | Communication mode | Half-duplex |
| 2 | Transmission means | Asynchronous transmission |
| 3 | Start bit is long | 1bit |
| 4 | Data bit is long | 8bit |
| 5 | Parity bit | Do not have |
| 6 | Position of rest | 1bit |
| 7 | Transfer rate | 300bps |
The communication mode of table 2 bus communication
| NO | Project | Content |
| 1 | Communication mode | Half-duplex (nonpolarity 2 line systems) (full duplex when delivering letters) |
| 2 | Transmission means | Asynchronous transmission |
| 3 | Start bit is long | 1bit |
| 4 | Data bit is long | 8bit |
| 5 | Parity bit | Very/even parity check |
| 6 | Position of rest | 1bit |
| 7 | Transfer rate | 9.6Kbps |
(3) protocol code conversion: if insert the indoor set that adopts the forceful electric power communication mode; Then coolant distributor carries out algorithm conversion, sends to off-premises station after the information that provides based on the indoor set The Fitting Calculation of carrying out parameter substitutes the unified systematic parameter of back formation with variable that is:; Then give off-premises station if insert the indoor set that adopts the bus communication mode by directly forwarding information of coolant distributor;
(4) computational analysis parameter: the PID that carries out electronic expansion valve opening according to indoor set information by off-premises station calculates, and then data result is sent to coolant distributor;
(5) start-up control drives: carry out the aperture fine setting by coolant distributor according to indoor set information and draw final opening value, drive the folding of electric expansion valve then.
Concrete control flow is following:
As shown in Figure 2, when the reception of the standard of unlatching SCI port is interrupted, then be judged as and insert the indoor set that adopts the bus communication mode, extract corresponding access address; Directly transmit data to off-premises station by coolant distributor after preserving valid data; Off-premises station calculates according to the PID that data message carries out electronic expansion valve opening; Then data result is sent to coolant distributor; Coolant distributor carries out the aperture fine setting according to indoor set information and draws final opening value; Drive the folding of electric expansion valve then, other communication informations then directly are transmitted to each indoor set by coolant distributor according to different communications protocol codings.
As shown in Figure 3, when the triggering of external interrupt port, then be judged as and insert the indoor set that adopts the forceful electric power communication mode, extract corresponding access address; Coolant distributor carries out the algorithm conversion after preserving valid data, sends to off-premises station after the The Fitting Calculation that the information that provides according to indoor set is carried out parameter substitutes the unified systematic parameter of back formation with variable that is:; Off-premises station calculates according to the PID that data message carries out electronic expansion valve opening; Then data result is sent to coolant distributor; Coolant distributor carries out the aperture fine setting according to indoor set information and draws final opening value; Drive the folding of electric expansion valve then, coolant distributor is controlled the cold medium flux that distributes each indoor set through the corresponding electronic expansion valve opening of each indoor set, and other communication informations then directly are transmitted to each indoor set by coolant distributor according to different communications protocol codings.
The above only is to preferred embodiment of the present invention, is not to be that the present invention is done other forms of restriction, and any professional and technical personnel of being familiar with possibly utilize the technology contents of above-mentioned announcement to change or be modified as the equivalent embodiment of equivalent variations.But every the present invention program's content that do not break away to any simple modification, equivalent variations and remodeling that above embodiment did, still belongs to protection scope of the present invention according to technical spirit of the present invention.
Claims (2)
1. air-conditioning unit coolant distributor control method is characterized in that: may further comprise the steps:
(1) preset hardware connects: indoor set type and numbering that access is set on the toggle switch in the coolant distributor electric-controlled box; And carry out hardware according to numbering and connect; Adopt the indoor set data input pin of forceful electric power communication mode to insert the external interrupt port, and adopt the indoor set data input pin of bus communication mode to insert standard SCI port;
(2) judge access state: the triggering through the external interrupt port judges whether to insert indoor set and the access address that adopts the forceful electric power communication mode; Interruption through standard SCI port judges whether to insert indoor set and the access address that adopts the bus communication mode;
(3) protocol code conversion: if insert the indoor set that adopts the forceful electric power communication mode, after then coolant distributor carried out the algorithm conversion, transmission information was given off-premises station; Then give off-premises station if insert the indoor set that adopts the bus communication mode by directly forwarding information of coolant distributor;
(4) computational analysis parameter: the PID that carries out electronic expansion valve opening according to indoor set information by off-premises station calculates, and then data result is sent to coolant distributor;
(5) start-up control drives: carry out the aperture fine setting by coolant distributor according to indoor set information and draw final opening value; Drive the folding of electric expansion valve then, other communication informations then directly are transmitted to each indoor set by coolant distributor according to different communications protocol codings.
2. air-conditioning unit coolant distributor control method according to claim 1; It is characterized in that: in above-mentioned steps (3) the protocol code conversion, it is to send to off-premises station after substituting formation unified systematic parameter in back according to the The Fitting Calculation that the information that indoor set provides is carried out parameter with variable that coolant distributor carries out the algorithm conversion.
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| CN201210217337.9A CN102721144B (en) | 2012-06-28 | 2012-06-28 | Control method of refrigerant distributor of air-conditioner unit |
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| CN201210217337.9A CN102721144B (en) | 2012-06-28 | 2012-06-28 | Control method of refrigerant distributor of air-conditioner unit |
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| CN102721144B CN102721144B (en) | 2014-06-04 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107702301A (en) * | 2017-10-09 | 2018-02-16 | 珠海格力电器股份有限公司 | Air-conditioning system and air conditioner system control method |
| CN110686369A (en) * | 2019-09-26 | 2020-01-14 | 珠海格力电器股份有限公司 | Conversion device, control method of conversion device and air conditioner |
| CN110762738A (en) * | 2019-11-08 | 2020-02-07 | 宁波奥克斯电气股份有限公司 | Multi-split protocol conversion control method, device and system and air conditioning system |
| CN114251717A (en) * | 2020-09-24 | 2022-03-29 | 广东美的制冷设备有限公司 | Multi-split air conditioner, splitter, control method of splitter and outdoor unit and medium |
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| CN101834769A (en) * | 2010-03-31 | 2010-09-15 | 青岛海信日立空调系统有限公司 | Two-way communication switching method of HBS (High Byte Strobe) bus communication protocol and RS-485 bus communication protocol |
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2012
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Patent Citations (5)
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| JPH08303843A (en) * | 1995-05-11 | 1996-11-22 | Tokyo Gas Co Ltd | Address setting method in centralized control type air-conditioning device |
| JP2000088317A (en) * | 1998-09-10 | 2000-03-31 | Matsushita Refrig Co Ltd | Air conditioner |
| CN1515843A (en) * | 2003-08-26 | 2004-07-28 | 王春刚 | Variable capacity one-driving-many control technique |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107702301A (en) * | 2017-10-09 | 2018-02-16 | 珠海格力电器股份有限公司 | Air-conditioning system and air conditioner system control method |
| CN107702301B (en) * | 2017-10-09 | 2019-08-23 | 珠海格力电器股份有限公司 | Air-conditioning system and air conditioner system control method |
| CN110686369A (en) * | 2019-09-26 | 2020-01-14 | 珠海格力电器股份有限公司 | Conversion device, control method of conversion device and air conditioner |
| CN110686369B (en) * | 2019-09-26 | 2020-11-06 | 珠海格力电器股份有限公司 | Conversion device, control method of conversion device and air conditioner |
| CN110762738A (en) * | 2019-11-08 | 2020-02-07 | 宁波奥克斯电气股份有限公司 | Multi-split protocol conversion control method, device and system and air conditioning system |
| CN114251717A (en) * | 2020-09-24 | 2022-03-29 | 广东美的制冷设备有限公司 | Multi-split air conditioner, splitter, control method of splitter and outdoor unit and medium |
| CN114251717B (en) * | 2020-09-24 | 2023-09-01 | 广东美的制冷设备有限公司 | One-to-many air conditioner, splitter, control method of splitter and outdoor unit, and medium |
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| CN102721144B (en) | 2014-06-04 |
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