CN102721144B - 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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- CN102721144B CN102721144B CN201210217337.9A CN201210217337A CN102721144B CN 102721144 B CN102721144 B CN 102721144B CN 201210217337 A CN201210217337 A CN 201210217337A CN 102721144 B CN102721144 B CN 102721144B
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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 air-conditioning production technical field.
Background technology
At present, in domestic air conditioning, the conventional communication mode between indoor set and off-premises station is " forceful electric power communication ", and point pressing out a road from power supply " live wire " becomes holding wire and carry out communication signal transmission with power supply " zero line " formation loop; In business air conditioner, the conventional communication mode between indoor set and off-premises station is " bus communication ", carries out communication signal transmission by proprietary two lines (light current).
In VRF Air Conditioning System or family expenses monoblock, the refrigerant distribution that adopt the assemblies such as electric expansion valve or throttle capillary tube to carry out each indoor set more, as the electric expansion valve of different communication type indoor sets or throttle capillary tube are all moved on in coolant distributor, the cost that not only can effectively save indoor set is conducive to again environmental protection noise reduction, the expansion that more can carry out indoor set type be freely connected.But existing coolant distributor is only supported single communication mode, do not support hybrid junction, algorithm requires singlely to input parameter, and can not expand, and has limited cost control and the adaptability of whole unit.
Under the situation of at present air conditioner industry keen competition, the 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 cannot carry out strategic cooperation and technological innovation; " forceful electric power communication " and " bus communication " be each tool advantage on domestic air conditioning and business air conditioner respectively, but when composition air-conditioning unit, be difficult to cooperatively interact, even also can produce the overlapping of the waste of communication resources and product type between the different product of same companies; Meanwhile, can cause debugging tool, instrument outside production frock, instrument and factory repeat arrange and the wasting of resources.
Summary of the invention
The deficiency existing for prior art, 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 refrigerant between each indoor set in air conditioner group system according to the data message under different agreement and distribute.
For solving the problems of the technologies described above, the technical solution used in the present invention is that a kind of air-conditioning unit coolant distributor control method, comprises the following steps:
(1) default hardware connects: indoor set type and numbering that access is set on the toggle switch in coolant distributor electric-controlled box, and carry out hardware connection according to numbering, adopt the indoor set data input pin access external interrupt port of forceful electric power communication mode, and adopt the indoor set data input pin access standard SCI port of bus communication mode;
(2) judge access state: judge whether that by the triggering of external interrupt port access adopts indoor set and the access address of forceful electric power communication mode; Judge whether that by the interruption of standard SCI port access adopts indoor set and the access address of bus communication mode;
(3) protocol code conversion: if access adopts the indoor set of forceful electric power communication mode, coolant distributor carries out after algorithm conversion, and transmission information is to off-premises station; If the indoor set that access adopts bus communication mode by the direct forwarding information of coolant distributor to off-premises station;
(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 and control driving: carry out aperture fine setting by coolant distributor according to indoor set information and draw final opening value, then drive the folding of electric expansion valve, other communication informations are directly 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) protocol code conversion, it is after the unified systematic parameter of formation, to send to off-premises station after the Fitting Calculation that the information that provides according to indoor set is carried out parameter substitutes with variable that coolant distributor carries out algorithm conversion.
Tool of the present invention has the following advantages 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, the communication conversion between domestic air conditioning (forceful electric power communication) and the business air conditioner (bus communication) that is applicable to sell at present.
2, the present invention can make domestic air conditioning and business air conditioner mate after the factor of other side, can connect alternately, control use, no longer simple be confined to domestic air conditioning or business air conditioner, avoid debugging tool, instrument outside production frock, instrument and factory repeat arrange and the wasting of resources, serial kind and the product line of product have been expanded simultaneously, reduce technological development cost, shortened the R&D cycle.
3, the present invention carries out data by coolant distributor the Fitting Calculation and variable substitute, by two kinds of parameter correspondences or alternative completely that agreement is related, realize the intertranslation of information data between forceful electric power communication mode and bus communication mode, the stability of effectively guarantee system operation.
Brief description of the drawings
Fig. 1 is that communication of the present invention is related to block diagram;
Fig. 2 is the coolant distributor access flow chart while adopting the indoor set of bus communication mode;
Fig. 3 is the coolant distributor access flow chart while adopting the indoor set of forceful electric power communication mode.
Detailed description of the invention
The air-conditioning unit coolant distributor control method of the present embodiment, comprises the following steps:
(1) default hardware connects:
Indoor set type and the numbering of access are set on the toggle switch in coolant distributor electric-controlled box, and carry out hardware connection according to numbering, as shown in Figure 1, adopt the indoor set data input pin access external interrupt port of forceful electric power communication mode, and adopt the indoor set data input pin access standard SCI port of bus communication mode;
(2) judge access state: judge whether that by the triggering of external interrupt port access adopts indoor set and the access address of forceful electric power communication mode, the communication mode of forceful electric power communication is as shown in table 1; Judge whether that by the interruption of standard SCI port access adopts indoor set and the access address of bus communication mode, 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 | Nothing |
| 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 while 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 access adopts the indoor set of forceful electric power communication mode, coolant distributor carries out algorithm conversion, that is: the information providing according to indoor set sends to off-premises station after carrying out forming unified systematic parameter after the Fitting Calculation of parameter and variable substitute; If the indoor set that access adopts bus communication mode by the direct forwarding information of coolant distributor to off-premises station;
(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 to control and drive: carry out aperture fine setting by coolant distributor according to indoor set information and draw and then drive the folding of electric expansion valve by final opening value.
Concrete control flow is as follows:
As shown in Figure 2, in the time opening the receive interruption of standard SCI port, be judged as access and adopt the indoor set of bus communication mode, extract corresponding access address; Preserve after valid data by the direct forwarding data of coolant distributor to off-premises station; The PID that off-premises station carries out electronic expansion valve opening according to data message calculates, then data result is sent to coolant distributor, coolant distributor carries out aperture fine setting according to indoor set information and draws final opening value, then drive the folding of electric expansion valve, other communication informations are directly transmitted to each indoor set by coolant distributor according to different communications protocol codings.
As shown in Figure 3, in the time of the triggering of external interrupt port, be judged as access and adopt the indoor set of forceful electric power communication mode, extract corresponding access address; Preserve coolant distributor after valid data and carry out algorithm conversion, that is: after the Fitting Calculation that the information providing according to indoor set is carried out parameter substitutes with variable, after the unified systematic parameter of formation, send to off-premises station; The PID that off-premises station carries out electronic expansion valve opening according to data message calculates, then data result is sent to coolant distributor, coolant distributor carries out aperture fine setting according to indoor set information and draws final opening value, then drive the folding of electric expansion valve, coolant distributor distributes the cold medium flux of each indoor set by each electronic expansion valve opening control corresponding to indoor set, other communication informations are directly transmitted to each indoor set by coolant distributor according to different communications protocol codings.
The above, be only to preferred embodiment of the present invention, is not that the present invention is done to other forms of restriction, and any those skilled in the art may utilize the technology contents of above-mentioned announcement to be changed or be modified as the equivalent embodiment of equivalent variations.But every the present invention program's content that do not depart from, to any simple modification made for any of the above embodiments, equivalent variations and remodeling, still belongs to protection scope of the present invention according to technical spirit of the present invention.
Claims (2)
1. an air-conditioning unit coolant distributor control method, is characterized in that: comprise the following steps:
(1) default hardware connects: indoor set type and numbering that access is set on the toggle switch in coolant distributor electric-controlled box, and carry out hardware connection according to numbering, adopt the indoor set data input pin access external interrupt port of forceful electric power communication mode, and adopt the indoor set data input pin access standard SCI port of bus communication mode;
(2) judge access state: judge whether that by the triggering of external interrupt port access adopts indoor set and the access address of forceful electric power communication mode; Judge whether that by the interruption of standard SCI port access adopts indoor set and the access address of bus communication mode;
(3) protocol code conversion: if access adopts the indoor set of forceful electric power communication mode, coolant distributor carries out after algorithm conversion, and transmission information is to off-premises station; If the indoor set that access adopts bus communication mode by the direct forwarding information of coolant distributor to off-premises station;
(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 to control and drive: carry out aperture fine setting by coolant distributor according to indoor set information and draw and then drive the folding of electric expansion valve by final opening value.
2. air-conditioning unit coolant distributor control method according to claim 1, it is characterized in that: in above-mentioned steps (3) protocol code conversion, it is after the unified systematic parameter of formation, to send to off-premises station after the Fitting Calculation that the information that provides according to indoor set is carried out parameter substitutes with variable that coolant distributor carries out 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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| 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 |
| 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 |
| 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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| 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 |
| CN1243936C (en) * | 2003-08-26 | 2006-03-01 | 王春刚 | Variable capacity one-driving-many control technique |
| CN201265934Y (en) * | 2008-08-18 | 2009-07-01 | 中山新亚洲电业有限公司 | Energy-saving central control system of split type air conditioner |
| CN101834769B (en) * | 2010-03-31 | 2011-12-28 | 青岛海信日立空调***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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