CN105509224A - Automatic matching method for indoor unit and outdoor unit compressors - Google Patents
Automatic matching method for indoor unit and outdoor unit compressors Download PDFInfo
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- CN105509224A CN105509224A CN201410490334.1A CN201410490334A CN105509224A CN 105509224 A CN105509224 A CN 105509224A CN 201410490334 A CN201410490334 A CN 201410490334A CN 105509224 A CN105509224 A CN 105509224A
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Abstract
The invention discloses an automatic matching method for indoor unit and outdoor unit compressors. The automatic matching method comprises the following steps: starting one compressor while controlling a plurality of operation refrigeration mode of an indoor unit through an outdoor unit control board, determining that the compressor is possibly matched with the indoor unit if the temperature drop range of the indoor unit is greater than a preset temperature; then, controlling a plurality of operation heating modes of the indoor unit through the outdoor unit control board, determining that the compressor is successfully matched with the indoor unit if the temperature increase range of the indoor unit is greater than a preset temperature, closing the compressor and the indoor unit, and repeating the steps until all compressors and indoor units are successfully matched. According to the automatic matching method, the mounting difficulty and the mounting time of an air-conditioning system can be effectively reduced; software is not required to be artificially configured, so that a mounting process is simplified, an air-conditioning mounting error ratio is reduced, and automation degree of the air conditioner is improved.
Description
Technical field
The present invention relates to refrigeration technology field, particularly a kind of indoor set and compressor of outdoor unit automatic matching method.
Background technology
There is an off-premises station and multiple indoor set in an air-conditioning system, and only have an off-premises station control panel in off-premises station to control multiple compressor, and the cooling and warming demand of each indoor set can only rely on one of them compressor having refrigerant to be connected with it.Therefore, should set up indoor set and with the one-to-one relationship between its compressor having refrigerant to be connected, make when indoor set have refrigeration or heating needs time can control this compressor like clockwork.
Currently available technology mainly contains the matching process of two kinds of indoor sets and compressor of outdoor unit:
One: field technician is according to the corresponding different compressors of the different control port of off-premises station control panel, check that different compressors connects from the refrigerant of different indoor set, set up one-to-one relationship, then configure off-premises station by peripheral control unit input command or configure indoor set thus set up software corresponding relation.The benefit of this matching process does not need to install according to the matching relationship of compressor and indoor set when being and installing; Harm must check matching relationship after installing, and configure indoor set or off-premises station and make it set up corresponding mapping relations.
Two: multiple indoor set and compressor are numbered respectively, in-site installation engineer is according to the agreement of software, the compressor 1 relevant with indoor set 1 must be received above off-premises station control panel port one, the compressor 2 relevant with indoor set 2 is received on off-premises station control panel port 2, the like, software is given tacit consent to such installation.The benefit of this matching process does not need to arrange any content by peripheral control unit, but can increase the difficulty of installation and install the probability of makeing mistakes.
In sum, because the indoor set in air-conditioning system and compressor are must be one to one on controlling, for making that software can identify the different compressors that different indoor set is corresponding, Installation Technology personnel are needed to set up indoor set and the correspondence mappings relation of compressor on software by the method for specific installation or software merit rating, this will certainly cause installation process complicated, and may also need configuration software or control panel, the set-up time therefore can be caused long, the phenomenon such as easily to make mistakes.
Therefore, how a kind of indoor set and compressor of outdoor unit automatic matching method are provided, can Auto-matching be realized, thus simplify installation process and installation requirement, reduce error rate when installing, improving the automaticity of air-conditioning, is the technical problem that those skilled in the art need solution badly.
Summary of the invention
In summary of the invention part, introduce the concept of a series of reduced form, this will further describe in detailed description of the invention part.Summary of the invention part of the present invention does not also mean that the key feature and essential features that will attempt to limit technical scheme required for protection, does not more mean that the protection domain attempting to determine technical scheme required for protection.
The invention discloses a kind of indoor set and compressor of outdoor unit automatic matching method, comprising:
Step 1: off-premises station control panel reads multiple indoor set successively, determines number and the address of the indoor set be connected with described off-premises station control panel;
Step 2: the order that described off-premises station control panel brings into operation to described multiple indoor set transmission matcher, the order of described multiple indoor set shieldings all peripheral control units except described off-premises station control panel;
Step 3: described off-premises station control panel controls described multiple indoor set running refrigerating pattern, after preset time period, described off-premises station control panel reads the temperature of described multiple indoor set, and described temperature is analyzed, if the excursion of described temperature is all less than the first preset temperature, then enter step 4;
Step 4: described off-premises station control panel opens the first compressor, and continue the temperature reading described multiple indoor set, if the temperature decline scope of the first indoor set is greater than the second preset temperature, then think that described first indoor set may mate with described first compressor; Now, described off-premises station control panel controls described multiple indoor set and runs heating mode, and read the temperature of described multiple indoor set, if the temperature lifting range of described first indoor set is greater than described second preset temperature, the match is successful then to think described first indoor set and described first compressor, enters step 5; Otherwise mate unsuccessful, get back to step 3, and open the second compressor in described step 4;
Step 5: described off-premises station control panel closes described first indoor set and described first compressor; Get back to step 3;
Step 6: repeating said steps 3-step 5, described multiple indoor set is after all the match is successful, and mapping relations are set up stored in nonvolatile memory in the address of described multiple indoor set and the compressor matched with it by described off-premises station control panel.
Preferably, described preset time period is 1 minute, and described first preset temperature is 2 DEG C, and described second preset temperature is 5 DEG C.
Preferably, also comprise before described step 1: described off-premises station control panel reads the stored record in described nonvolatile memory, if the match is successful for indoor set and compressor, then enters normal working procedure; Otherwise, enter step 1 and start automatch.
Preferably, described off-premises station control panel is according to the read-write register point table of described multiple indoor set, read described multiple indoor set by the communication interface between described off-premises station control panel and described multiple indoor set control panel, the address realm of described multiple indoor set is 1 ~ n.
Preferably, described communication interface is RS485 interface, CAN interface or RS232 interface.
Preferably, the communication protocol between described off-premises station control panel and described multiple indoor set control panel is MODBUS agreement or makes agreement by oneself.
Preferably, the temperature of described multiple indoor set is the temperature of the coil pipe of described multiple indoor set.
Beneficial effect of the present invention is:
The invention provides a kind of indoor set and compressor of outdoor unit automatic matching method, a compressor is opened while controlling multiple indoor set running refrigerating pattern by off-premises station control panel, when wherein an indoor set temperature decline scope is greater than preset temperature, then think that compressor may mate with this indoor set; Then control multiple indoor set by off-premises station control panel and run heating mode, if this indoor set temperature lifting range is greater than preset temperature, the match is successful then to think compressor and this indoor set, close this compressor and indoor set, and repeat above-mentioned steps until all compressors and indoor set the match is successful.
Visible, indoor set provided by the invention and compressor of outdoor unit automatic matching method, automatically control program is run by software, the one-to-one relationship that software identifies each indoor set and compressor is automatically completed by the COM1 between indoor set and off-premises station, finally corresponding relation is preserved in the nonvolatile memory, not need after powering on next time again mating.Simplify installation process and installation requirement, reduce error rate when installing, improve the automaticity of air-conditioning.
Accompanying drawing explanation
The following accompanying drawing of the embodiment of the present invention in this as a part of the present invention for understanding the present invention.Shown in the drawings of embodiments of the present invention and description thereof, be used for explaining principle of the present invention.In the accompanying drawings,
Fig. 1 is the communication connection relation schematic diagram between off-premises station control panel and multiple indoor set control panel;
Fig. 2 is the flow chart of indoor set provided by the invention and compressor of outdoor unit automatic matching method;
Fig. 3 and Fig. 4 is the workflow diagram of indoor set provided by the invention and a kind of embodiment of compressor of outdoor unit automatic matching method.
detailed description of the invention
In the following description, a large amount of concrete details is given to provide more thorough understanding of the invention.But, it will be apparent to one skilled in the art that the embodiment of the present invention can be implemented without the need to these details one or more.In other example, in order to avoid obscuring with the embodiment of the present invention, technical characteristics more well known in the art are not described.
In order to thoroughly understand the embodiment of the present invention, by following description, detailed structure is proposed.Obviously, the execution of the embodiment of the present invention is not limited to the specific details that those skilled in the art has the knack of.Preferred embodiment of the present invention is described in detail as follows, but except these are described in detail, the present invention can also have other embodiments.
Please refer to Fig. 1, Fig. 1 is the communication connection relation schematic diagram between off-premises station control panel and multiple indoor set control panel.
First technical background of the present invention is briefly described:
The communication connection of indoor set control panel and off-premises station control panel as shown in Figure 1, port can use RS485 port, software protocol can use MODBUS agreement, off-premises station control panel is as MODBUS main frame, all indoor set control panels are as MODBUS from machine, and each indoor set control panel has a unique MODBUS slave addresses.The control port of each compressor is connected on off-premises station control panel respectively, controls the switch of these compressors or add unloading by off-premises station control panel.In scheme provided by the invention, the characteristic sum agree as follows of target empty adjusting system:
Air-conditioning system is primarily of an off-premises station, and multiple indoor set and multiple controller form, and this off-premises station only has a control panel, a control n compressor; Indoor set also total n, each indoor set only has a control panel, and the cooling and warming demand of each indoor set can only rely on a compressor having refrigerant to be connected with it.
MODBUS slave addresses (hereinafter referred to as the address) scope supposing indoor set control panel is 1 ~ n, there is a MODBUS read-write register point table in each indoor set control panel, the state of indoor set is can read according to this some table off-premises station control panel, and the corresponding action of indoor set can be controlled by write operation, as switching on and shutting down, regulate design temperature, change set model, switch gear room's inner blower etc.
Please refer to Fig. 2, Fig. 2 is the flow chart of indoor set provided by the invention and compressor of outdoor unit automatic matching method.
As shown in Figure 2, indoor set provided by the invention and compressor of outdoor unit automatic matching method, a compressor is opened while controlling multiple indoor set running refrigerating pattern by off-premises station control panel, when wherein an indoor set temperature decline scope is greater than preset temperature, then think that compressor may mate with this indoor set; Then control multiple indoor set by off-premises station control panel and run heating mode, if this indoor set temperature lifting range is greater than preset temperature, the match is successful then to think compressor and this indoor set, close this compressor and indoor set, and repeat above-mentioned steps until all compressors and indoor set the match is successful.
Concrete steps are as follows:
Step 1: off-premises station control panel reads multiple indoor set successively, determines number and the address of the indoor set be connected with described off-premises station control panel;
Step 2: the order that described off-premises station control panel brings into operation to described multiple indoor set transmission matcher, the order of described multiple indoor set shieldings all peripheral control units except described off-premises station control panel;
Step 3: described off-premises station control panel controls described multiple indoor set running refrigerating pattern, after preset time period, described off-premises station control panel reads the temperature of described multiple indoor set, and described temperature is analyzed, if the excursion of described temperature is all less than the first preset temperature, then enter step 4;
Step 4: described off-premises station control panel opens the first compressor, and continue the temperature reading described multiple indoor set, if the temperature decline scope of the first indoor set is greater than the second preset temperature, then think that described first indoor set may mate with described first compressor; Now, described off-premises station control panel controls described multiple indoor set and runs heating mode, and read the temperature of described multiple indoor set, if the temperature lifting range of described first indoor set is greater than described second preset temperature, the match is successful then to think described first indoor set and described first compressor, enters step 5; Otherwise mate unsuccessful, get back to step 3, and open the second compressor in described step 4;
Step 5: described off-premises station control panel closes described first indoor set and described first compressor;
Get back to step 3;
Step 6: repeating said steps 3-step 5, described multiple indoor set is after all the match is successful, and mapping relations are set up stored in nonvolatile memory in the address of described multiple indoor set and the compressor matched with it by described off-premises station control panel.
Visible, indoor set provided by the invention and compressor of outdoor unit automatic matching method, automatically control program is run by software, the one-to-one relationship that software identifies each indoor set and compressor is automatically completed by the COM1 between indoor set and off-premises station, finally corresponding relation is preserved in the nonvolatile memory, not need after powering on next time again mating.Simplify installation process and installation requirement, reduce error rate when installing, improve the automaticity of air-conditioning.
Preferably, preset time period is 1 minute, and the first preset temperature is 2 DEG C, and the second preset temperature is 5 DEG C.That is: off-premises station control panel controls multiple indoor set running refrigerating pattern, after the blower fan of multiple indoor set opens 1 minute, off-premises station control panel reads the temperature of multiple indoor set, and analyzes described temperature, if the excursion of this temperature is all less than 2 DEG C, then enter step 4; Criterion in step 4 is: in cooling mode, and the temperature decline scope of the first indoor set is greater than 5 DEG C; In a heating mode, the temperature lifting range of the first indoor set is greater than 5 DEG C.
Certainly also do not limit to, above-mentioned preset time period, the first preset temperature and the second preset temperature all can adjust according to actual conditions, and the concrete time period depends on actual environment.
In order to optimize technique scheme further, in the present invention, also comprising between step 1: the stored record in off-premises station control panel reading non-volatile storage, if the match is successful for indoor set and compressor, then entering normal working procedure; Otherwise, enter step 1 and start automatch.Namely, after first time coupling, because the mapping relations address of indoor set and the compressor matched with it set up are stored in nonvolatile memory, therefore, do not need after powering on next time again to mate, directly can enter normal operation degree.
Preferably, above-mentioned off-premises station control panel is according to the read-write register point table of multiple indoor set, and by the communication interface between off-premises station control panel and described multiple indoor set control panel, described multiple indoor set is read, the address realm of multiple indoor set is 1 ~ n.Above-mentioned communication interface can be RS485 interface, CAN interface or RS232 interface etc.Communication protocol between off-premises station control panel and described multiple indoor set control panel for MODBUS agreement or can make agreement by oneself.
The temperature of off-premises station control panel to multiple indoor set reads, and can read for the coil temperature of off-premises station control panel to multiple indoor set.Certainly this kind of form is not limited to, if indoor set does not exist indoor set coil temperature, and there is another temperature sensor, as long as this temperature sensor is when compressor is opened, under cooling and warming pattern, temperature can raise or reduce can as an alternative.
Please refer to Fig. 3, Fig. 3 is the workflow diagram of indoor set provided by the invention and a kind of embodiment of compressor of outdoor unit automatic matching method.
As shown in Figure 3, concrete steps are as follows for the workflow diagram of a kind of specific embodiment of the present invention:
The first step, after air-conditioner set powers on, off-premises station control panel reads the stored record of nonvolatile memory on plate, check the matcher of whether successful operation indoor set and compressor, if the match is successful, enter normal working procedure, otherwise, start automatch.If or off-premises station control panel receives peripheral control unit and reruns matcher, this also starts automatch.
Second step, after entering matcher, off-premises station control panel successively reads in its some table one or several registers according to communication point table to the indoor set within the scope of the 1 ~ n of address by COM1, if the indoor set of this address exists and communication connection is normal, the a string specific communication data of off-premises station control panel is returned to exactly according to MODBUS agreement, off-premises station control panel can determine that the indoor set of this address exists and preserves information accordingly, if without feedback data, illustrates that this address indoor set control panel does not exist; And then the indoor set point table of next address is read, the like, until the indoor set within the scope of the 1 ~ n of address just can determine the indoor set number that is connected with off-premises station control panel at present and address after all having been read certain number of times.If design of air conditioning requires as indoor set must exist n, and the indoor set number retrieved is not equal to this value, just can report fault so herein, reminds installation personnel to change.Otherwise the 3rd step can be entered.
3rd step, register manipulation is write by MODBUS, the order that off-premises station control panel brings into operation to each communication normal indoor set broadcast transmission matcher, makes indoor set shield order and the setting of the peripheral control units such as line control machine, avoids it to affect the operation of working procedure.These enter the 4th step after having operated.
4th step, writes register manipulation by MODBUS, and off-premises station control panel brings into operation to each communication normal indoor set broadcast transmission refrigeration mode and the order of opening chamber's inner blower, but compressor is not opened.After waiting for that indoor set blower fan opens 1 minute, off-premises station control panel reads the indoor set coil temperature of each indoor set with certain frequency (as 100 ms intervals) by the operation of MODBUS read register.
5th step: the indoor set coil temperature of off-premises station control panel to each indoor set read is analyzed, if the range of temperature of each indoor set coil temperature is less than 2 DEG C in 1 minute, so enters the 6th step.
6th step: off-premises station control panel opens non-match compressor x, and continue the indoor set coil temperature detecting each indoor set, if the indoor set coil temperature that address is the indoor set of y reduces be greater than 5 DEG C, so can think that this indoor set mates with compressor 1 temporarily; It is heating mode that off-premises station control panel writes by MODBUS the pattern that register manipulation switches all indoor sets, and continue the indoor set coil temperature detecting each indoor set, if the indoor set coil temperature of the indoor set of same address y raises be greater than 5 DEG C, the match is successful so to think this compressor and this indoor set, enter the 7th step, otherwise mate unsuccessful, it is refrigeration mode that off-premises station control panel writes by MODBUS the pattern that register manipulation switches all indoor sets, continues to get back to the 6th step beginning.
7th step, off-premises station control panel closes match compressor x, and it is refrigeration mode that off-premises station control panel writes by MODBUS the pattern that register manipulation switches all indoor sets, and closes the indoor set that the match is successful, is not reading the indoor set coil temperature having mated indoor set.
8th step, if there is indoor set also not mate, then gets back to the 5th step and proceed matcher, otherwise matcher terminates.If all compressors have been attempted opening all, but also have indoor set and also do not mate, then report fault, need to check and install and wiring.
9th step, all indoor sets are after the match is successful, and the correspondence mappings relation of mating that address of indoor unit and compressor are set up by off-premises station control panel is stored in nonvolatile memory.
It should be noted that, the step number marked in Fig. 3 is the joining relation in order to represent Fig. 3 and Fig. 4, and inconsistent to the description step of workflow above, but the flow process of essence is identical.
Be illustrated by above-described embodiment, but should be understood that, above-described embodiment just for the object of illustrating and illustrate, and is not intended to the present invention to be limited in described scope of embodiments.In addition it will be appreciated by persons skilled in the art that the present invention is not limited to above-described embodiment, more kinds of variants and modifications can also be made according to instruction of the present invention, within these variants and modifications all drop on the present invention's scope required for protection.
Claims (7)
1. indoor set and a compressor of outdoor unit automatic matching method, is characterized in that, comprising:
Step 1: off-premises station control panel reads multiple indoor set successively, determines number and the address of the indoor set be connected with described off-premises station control panel;
Step 2: the order that described off-premises station control panel brings into operation to described multiple indoor set transmission matcher, the order of described multiple indoor set shieldings all peripheral control units except described off-premises station control panel;
Step 3: described off-premises station control panel controls described multiple indoor set running refrigerating pattern, after preset time period, described off-premises station control panel reads the temperature of described multiple indoor set, and described temperature is analyzed, if the excursion of described temperature is all less than the first preset temperature, then enter step 4;
Step 4: described off-premises station control panel opens the first compressor, and read the temperature of described multiple indoor set, if the temperature decline scope of the first indoor set is greater than the second preset temperature, then think that described first indoor set may mate with described first compressor; Now, described off-premises station control panel controls described multiple indoor set and runs heating mode, and read the temperature of described multiple indoor set, if the temperature lifting range of described first indoor set is greater than described second preset temperature, the match is successful then to think described first indoor set and described first compressor, enters step 5; Otherwise mate unsuccessful, get back to step 3, and open the second compressor in described step 4;
Step 5: described off-premises station control panel closes described first indoor set and described first compressor; Get back to step 3;
Step 6: repeating said steps 3-step 5, described multiple indoor set is after all the match is successful, and mapping relations are set up stored in nonvolatile memory in the address of described multiple indoor set and the compressor matched with it by described off-premises station control panel.
2. method according to claim 1, is characterized in that, described preset time period is 1 minute, and described first preset temperature is 2 DEG C, and described second preset temperature is 5 DEG C.
3. method according to claim 1, is characterized in that, also comprises: described off-premises station control panel reads the stored record in described nonvolatile memory, if the match is successful for indoor set and compressor, then enters normal working procedure before described step 1; Otherwise, enter step 1 and start automatch.
4. method according to claim 1, it is characterized in that, in described step 1, described off-premises station control panel is according to the read-write register point table of described multiple indoor set, read described multiple indoor set by the communication interface between described off-premises station control panel and described multiple indoor set control panel, the address realm of described multiple indoor set is 1 ~ n.
5. method according to claim 4, is characterized in that, described communication interface is RS485 interface, CAN interface or RS232 interface.
6. the method according to any one of claim 1-5, is characterized in that, the communication protocol between described off-premises station control panel and described multiple indoor set control panel is MODBUS agreement or makes agreement by oneself.
7. the method according to any one of claim 1-5, is characterized in that, the temperature of described multiple indoor set is the temperature of the coil pipe of described multiple indoor set.
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| CN110260453A (en) * | 2019-06-03 | 2019-09-20 | 广东美的暖通设备有限公司 | Humidify matching process, device and the computer readable storage medium of pipeline |
| CN110529992A (en) * | 2019-09-09 | 2019-12-03 | 广东美的暖通设备有限公司 | Air-conditioning system, the control method of air-conditioning system and computer readable storage medium |
| CN111397161A (en) * | 2020-03-16 | 2020-07-10 | 珠海格力电器股份有限公司 | Air conditioner indoor unit number determining method and device, storage medium and air conditioner |
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| CN105509224B (en) | 2018-08-03 |
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Effective date of registration: 20190102 Address after: Tokyo, Japan Patentee after: Hitachi Johnson Automatic Air Conditioning Co.,Ltd. Address before: 511685 Xuetian Management Zone, Longshan Town, Fogang County, Qingyuan City, Guangdong Province Patentee before: YORK GUANGZHOU AIR CONDITIONING AND REFRIGERATION Co.,Ltd. Effective date of registration: 20190102 Address after: Longtian Town, Fogang County, Qingyuan, Guangdong Patentee after: YORK GUANGZHOU AIR CONDITIONING AND REFRIGERATION Co.,Ltd. Address before: 511685 Xuetian Management Zone, Longshan Town, Fogang County, Qingyuan City, Guangdong Province Co-patentee before: JOHNSON CONTROLS TECHNOLOGY Co. Patentee before: YORK GUANGZHOU AIR CONDITIONING AND REFRIGERATION Co.,Ltd. |
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