CN101509838A - Detecting method for air conditioning system with multiple indoor set - Google Patents
Detecting method for air conditioning system with multiple indoor set Download PDFInfo
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Abstract
The invention provides a detection method used for a multi-split air conditioning system, relating to the filed of automatic control of air conditioners. The method comprises the following steps of: a) energizing the air conditioning system and sending testing signals to a system controller to test the automatic operation of a module; b) determining online state of the air conditioning system and entering a test mode after determining that the testing signals are effective; c) giving out instructions to a plurality of internal machines by an external machine of the air conditioning system after entering the test mode so as to start the internal machines; d) entering cooling mode after starting the internal machines and operating a first preset time; e) after the internal machines operate the first preset time under the cooling mode, jumping to heating mode and operating a second preset time; and f) after the internal machines operate the second preset time under the heating mode, jumping out the heating mode and then ending the testing process. The method can carry out automatic test and detection to the plurality of internal machines simultaneously, convert operating modes automatically, judge and display the faults of the internal machines automatically and do not need manual operation.
Description
Technical field
The present invention relates to automation field, be specifically related to the test and the fault detect field of multi-split air conditioner.
Background technology
At present, (an outer machine is equipped with many interior machines to multi-split air conditioner, central air conditioner for example) use increasingly extensive, this air-conditioning system needs to carry out online testing before dispatching from the factory, to detect the situation that connects of many interior machines and outer machine, and also need the debugging of starting shooting after selling and installing, whether air-conditioning system can normally be moved and whether its performance parameter meets the demands to detect.Online testing before multi-split air conditioner dispatches from the factory at present and the start debug process after the installation are all undertaken by manual control, in the online testing process, the tester needs successively air-conditioning system to be set refrigeration mode and heating mode carries out corresponding test, to determine normally on-line execute of whole air-conditioning system; And in the Installation and Debugging process, the commissioning staff needs respectively each interior machine to be debugged.
Mainly there are following shortcoming in above-mentioned test and adjustment method: on the one hand, in the online testing process before dispatching from the factory, need artificial conversion operation pattern, need manually-operated to be converted to heating mode after the running refrigerating pattern, and compressor shutdown is very long to starting once more up to the system stability required time, this makes checkability low, and the waste of manpower resource; On the other hand, in the post debugging process on sale, because interior machine disperses to install and adopt the mode of manual debugging, therefore require the commissioning staff successively the performance of each interior machine to be debugged respectively, this has greatly increased commissioning staff's working time and workload.
Therefore need provide a kind of detection method that is used for multi-split air conditioner, it can overcome above-mentioned shortcoming, reduces manpower and time cost.
Summary of the invention
Technical matters to be solved by this invention provides a kind of detection method that is used for multi-split air conditioner, and it can be tested many interior machines and check simultaneously automatically, and automatic conversion operation pattern is judged automatically and shown interior machine fault, need not manually-operated.
For solving the problems of the technologies described above, the invention provides a kind of detection method that is used for multi-split air conditioner, this method comprises the steps,
A) for the air-conditioning system energising, send test massage to the air-conditioning system controller, test module moves automatically;
B) determine that the air-conditioning system on line state is good and confirm that test signal effectively after, air-conditioning system enters test pattern;
C) enter that outer machine machine in a plurality of of air-conditioning system sends instruction so that the start of interior machine behind the test pattern;
D) enter refrigeration mode and moved for first schedule time after the interior machine start;
E) interior machine has moved after first schedule time under refrigeration mode, jumps to heating mode and moves for second time; And
F) interior machine has moved after second schedule time under heating mode, jumps out heating mode, and test process finishes.
Preferably,, wherein, before step b), further comprise according to the detection method that is used for multi-split air conditioner of the present invention,
B1) judge the on line state of air-conditioning system, and judged result is fed back to the air-conditioning system controller, wherein, if the on line state of air-conditioning system is wrong, then outer machine demonstration malfunction, air-conditioning system does not enter test pattern.
Preferably, according to the detection method that is used for multi-split air conditioner of the present invention, wherein, step a) further comprises,
A1) judge that whether test signal sends to judge whether test signal is effective, and particularly, test event signal is invalid, and then air-conditioning system does not enter test pattern in the 3rd time after the air-conditioning system energising.
Preferably, according to the detection method that is used for multi-split air conditioner of the present invention, wherein, step d) further comprises,
D1) judge whether the refrigerating operaton sign is effective, particularly, refrigerating operaton sign effectively then air-conditioning system enters refrigeration mode; Invalid then the transferring of refrigerating operaton sign judges whether the heating operation sign is effective.
Preferably, according to the detection method that is used for multi-split air conditioner of the present invention, wherein, step d) further comprises,
D2) enter refrigeration mode after, the performance parameter of machine in test module detects, and testing result fed back to the air-conditioning system controller.
Preferably, according to the detection method that is used for multi-split air conditioner of the present invention, wherein, step e) further comprises,
E1) after interior machine had moved the very first time under refrigeration mode, the air-conditioning system controller was removed the refrigerating operaton sign, and the heating operation sign is set simultaneously.
Preferably, according to the detection method that is used for multi-split air conditioner of the present invention, wherein, step e) further comprises,
E2) judge whether the heating operation sign is effective, particularly, the heating operation sign is effective, and then air-conditioning system enters heating mode.
Preferably, according to the detection method that is used for multi-split air conditioner of the present invention, wherein, step e) further comprises,
E3) enter heating mode after, the performance parameter of machine in test module detects, and testing result fed back to the air-conditioning system controller.
Preferably, according to the detection method that is used for multi-split air conditioner of the present invention, wherein, the method further comprises,
G) after test process finishes, the online quantity of machine in outer machine shows in the test process.
Preferably, according to the detection method that is used for multi-split air conditioner of the present invention, wherein, the method further comprises,
H) described outer machine shows detected fault in the described test process.
Preferably, according to the detection method that is used for multi-split air conditioner of the present invention, wherein, and step a2) further comprise afterwards,
A3) test event signal sent in the 3rd schedule time, judged that then whether button tremble test through disappearing, wherein, if button is not trembled by disappearing and is tested then air-conditioning system does not enter test pattern.
The present invention has following technique effect:
The detection method that is used for multi-split air conditioner according to the present invention adopts Programmable Logic Device to control the online testing of whole air-conditioning system, and simultaneously many interior machines are carried out fault detect, whole process need not artificial intervention, has greatly saved manpower and time resource;
The detection method that is used for multi-split air conditioner according to the present invention can detect the fault of air-conditioning system automatically at test process, after test is finished, can with detected online fault in the online testing and in Installation and Debugging detected fault show automatically on the machine outside, reduced staff's workload significantly.
Should be appreciated that above generality is described and the following detailed description is all enumerated and illustrative, purpose is for to the claimed further instruction that the invention provides.
Description of drawings
Accompanying drawing constitutes the part of this instructions, is used to help further understand the present invention.These accompanying drawings illustrate some embodiments of the present invention, and are used for illustrating principle of the present invention with instructions.Identical in the accompanying drawings parts are represented with identical label.Wherein:
Fig. 1 shows the control flow chart according to the preferred embodiment of the detection method that is used for multi-split air conditioner of the present invention.
Embodiment
Describe the specific embodiment of the present invention with reference to the accompanying drawings in detail.
Fig. 1 shows the control flow chart according to the preferred embodiment of the detection method that is used for multi-split air conditioner of the present invention, has wherein shown the control procedure of this preferred embodiment in detail.
As shown in Figure 1, after for the air-conditioning system energising, master routine in the air-conditioning system controller will call the test function module automatically, thereby the button that the operator presses on the air-conditioning system controller sends test signal to air-conditioning system, then test module begins automatic operation, at this moment test module judges at first whether air-conditioning system has online fault, whether the connection status of just outer machine and many interior machines is normal, if find to exist online fault, air-conditioning system can not enter test pattern, and fail result can be fed to the air-conditioning system controller, and controller is passed to the outer machine of air-conditioning system with feedback signal, and then shows by outer machine.Particularly, in the present embodiment, outer facility have four pilot lamp, the different malfunction of various combination representative of four pilot lamp.Automatically withdraw from test process after showing end.
If test module does not detect online fault, then program continues operation backward, judges whether the start signal of test function is effective.If program thinks that the test signal of sending is invalid, then need to enter corresponding discrimination module, at first detect control knob and whether press, if button has been supressed in judgement, then continue to judge whether to press in the 30s after energising (the 3rd schedule time).If not pressing the button in 30s, then explanation test start signal is invalid, and Automatic Program is jumped out test module, waits for next time and calls; If judge it is in 30s, to supress button, then continue to have judged whether to pass through disappearing of button and tremble detection.If do not tremble detection through disappearing, then explanation test start signal is invalid, and Automatic Program is jumped out test module, waits for next time and calls; Tremble detection if having passed through disappears, then explanation test start signal is effective, and at this moment air-conditioning system enters test pattern, and the test function of system is opened.After test function was opened, program was provided with the refrigerating operaton sign, and air-conditioning at first moves according to refrigeration mode.
Here disappearing of above-mentioned button trembled to detect and carry out respective description.The common used switch of button is a mechanical switch, because the elastic reaction of mechanical contact, keyswitch can stably not connected when closure at once, also can not disconnect when disconnecting quickly, but can all be attended by a series of shake in moment closed and that disconnect.The time of button steady closure is by operating personnel's actuation of keys decision.Key jitter can cause the repeatedly maloperation of one-touch, for the assurance program the once closure of button is only carried out single treatment, must disappear accordingly and tremble operation.When the button closure is stablized, read key-press status, and then carry out subsequent operation.
After the setting of refrigerating operaton sign is finished, if judge this sign effectively, then air-conditioning system enters the refrigerating operaton pattern automatically, sends instruction so that the start of interior machine by outer machine machine in a plurality of of air-conditioning system, and whole air-conditioning system is moved 2min (first schedule time) under refrigeration mode.In the present embodiment, in the time of this section 2min, the load condition of air-conditioning system is as follows: interior machine valve open to 250 step, outer machine valve open to 480 step, outer blower fan moves under high wind shelves, and compressor is with the frequency operation of 60Hz, and four-way change-over valve keeps closed condition.In the refrigerating operaton process, program also can be automatically detects each performance parameters of many interior machines of air-conditioning system, if find wherein to have fault, then detected fail result is fed back to the air-conditioning system controller, controller can show this result subsequently outside on the machine.
Under refrigeration mode, move after the 2min, the compressor auto stop in the outer machine of air-conditioning system, Automatic Program is eliminated the refrigerating operaton sign, and the heating operation sign is set.
If after the setting of refrigerating operaton sign is finished, program judges that the refrigerating operaton sign is invalid, and then and then whether differentiate the heating operation sign effective, if the heating operation sign is effective, then air-conditioning system enters the heating operation pattern.If the heating operation sign is invalid, then system withdraws from test.
System enters after the heating operation pattern; can under this pattern, move 2min (second schedule time); in the time of this 2min; system can judge whether arrive the stabilization time of system after refrigerating operaton finishes compressor shutdown; if system is stable; then controlling four-way change-over valve opens; four-way change-over valve is opened after the 10s; air-conditioning begins to move under heating mode with following load condition; that is: interior machine valve opening to 200 goes on foot; in outer machine valve opening to 250 step, outer blower fan moves under high wind shelves, and compressor is fixed according to the frequency fortune of 60Hz.In heating process, program still can detect a plurality of performance parameters of many interior machines of air-conditioning system, if find wherein to have fault, then detected fail result is fed back to the air-conditioning system controller, controller can show this result subsequently outside on the machine.
So far, the detection under the refrigeration of air-conditioning system and the heating operation pattern has just been finished, at this moment the system finishing test function.In the 40s that finishes test function, outer chance shows detected fault in the test process, still utilizes the various combination of four pilot lamp to show different faults particularly.Behind the end of test (EOT) 40s, four pilot lamp of outer machine show the interior mantle number of linking in the test according to binary code.Particularly, the interior machine number of linking is measured like this: when outer machine can be when having the interior machine communication of a presumptive address code, just think the interior machine of having linked; When can be with in the n platform with a presumptive address code during machine communication when outer machine, just think the machine in the n platform of having linked (n=1,2,3...).
Arrive here the whole procedure end of run.The process of whole online testing and fault detect is fully by air-conditioner control system control, need not to think operation, and can detect many interior machines simultaneously, greatly saved manpower and time cost.
In addition, it should be noted that and to adjust according to actual needs a plurality of working times related in the method according to this invention, to realize best measuring ability.
Be the preferred embodiments of the present invention only below, be not limited to the present invention, for a person skilled in the art, the present invention can have various changes and variation.All any modifications of being done within the spirit and principles in the present invention, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (11)
1. a detection method that is used for multi-split air conditioner is characterized in that, comprises the steps:
A) send test massage with the air-conditioning system energising, and to the air-conditioning system controller;
B) determine that described air-conditioning system on line state is good and confirm that test signal effectively after, described air-conditioning system enters test pattern;
C) enter behind the test pattern that outer machine machine in a plurality of of air-conditioning system sends instruction so that described in machine start shooting;
D) enter refrigeration mode and moved for first schedule time after the described interior machine start;
E) described interior machine moved under described refrigeration mode after described first schedule time, jumped to heating mode and moved for second schedule time; And
F) described interior machine has moved under described heating mode after described second schedule time t2, jumps out described heating mode, and test process finishes.
2. a kind of detection method that is used for multi-split air conditioner according to claim 1 is characterized in that, further comprises before described step b):
B1) judge the on line state of described air-conditioning system, and judged result is fed back to described air-conditioning system controller, wherein, if the on line state of described air-conditioning system is wrong, then described outer machine demonstration malfunction, described air-conditioning system does not enter described test pattern.
3. a kind of detection method that is used for multi-split air conditioner according to claim 1 is characterized in that, described step a) further comprises,
A1) judge that whether described test signal sends to judge whether described test signal is effective in the 3rd schedule time after described air-conditioning system energising, wherein, if described test signal is invalid, then described air-conditioning system does not enter described test pattern.
4. a kind of detection method that is used for multi-split air conditioner according to claim 1 is characterized in that, described step d) further comprises,
D1) judge whether the refrigerating operaton sign is effective, wherein,
The effectively then described air-conditioning system of described refrigerating operaton sign enters described refrigeration mode;
Invalid then the transferring of described refrigerating operaton sign judges whether the heating operation sign is effective.
5. a kind of detection method that is used for multi-split air conditioner according to claim 4 is characterized in that, described step d) further comprises,
D2) enter described refrigeration mode after, described test module detect described in the performance parameter of machine, and testing result fed back to described air-conditioning system controller.
6. a kind of detection method that is used for multi-split air conditioner according to claim 1 is characterized in that, described step e) further comprises,
E1) described interior machine moved under described refrigeration mode after described first schedule time, and described air-conditioning system controller is removed the refrigerating operaton sign, and the heating operation sign is set simultaneously.
7. a kind of detection method that is used for multi-split air conditioner according to claim 6 is characterized in that, described step e) further comprises,
E2) judge whether described heating operation sign is effective, wherein, described heating operation sign is effective, and then described air-conditioning system enters described heating mode.
8. a kind of detection method that is used for multi-split air conditioner according to claim 7 is characterized in that, described step e) further comprises,
E3) enter described heating mode after, described test module detect described in the performance parameter of machine, and testing result fed back to described air-conditioning system controller.
9. a kind of detection method that is used for multi-split air conditioner according to claim 1 is characterized in that, described method further comprises,
G) after described test process finishes, the online quantity of machine in described outer machine shows described in the described test process.
10. a kind of detection method that is used for multi-split air conditioner according to claim 1 is characterized in that, described method further comprises,
H) described outer machine shows detected fault in the described test process.
11. a kind of detection method that is used for multi-split air conditioner according to claim 3 is characterized in that described step a2) further comprise afterwards:
A3) if described test signal sent in described the 3rd schedule time, judge that then whether described button tremble test through disappearing, wherein, if described button is not trembled test then described air-conditioning system does not enter described test pattern by described disappearing.
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102221658A (en) * | 2011-03-02 | 2011-10-19 | 海尔集团公司 | Multi-split air-conditioning indoor and outdoor unit mistaken wiring detection method |
| CN103822326A (en) * | 2012-11-19 | 2014-05-28 | 珠海格力电器股份有限公司 | Outdoor unit performance test method, server and system |
| CN103913669A (en) * | 2014-04-18 | 2014-07-09 | 广东美的暖通设备有限公司 | Wiring error detection method and device and heating and ventilation device |
| CN104848486A (en) * | 2015-05-14 | 2015-08-19 | 珠海格力电器股份有限公司 | Performance parameter testing system of air conditioner and air conditioning system |
| CN105588725A (en) * | 2015-02-04 | 2016-05-18 | 青岛海信日立空调系统有限公司 | Air conditioner automatic test method, air conditioner automatic test device and air conditioner automatic test system |
| CN106247530A (en) * | 2016-07-29 | 2016-12-21 | 海信（山东）空调有限公司 | Many air-conditionings self checking method is dragged in many control frequency conversion one |
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| CN108088039A (en) * | 2017-11-27 | 2018-05-29 | 芜湖美智空调设备有限公司 | Air conditioner examines control method and control device, storage medium and remote control equipment |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102221658A (en) * | 2011-03-02 | 2011-10-19 | 海尔集团公司 | Multi-split air-conditioning indoor and outdoor unit mistaken wiring detection method |
| CN102221658B (en) * | 2011-03-02 | 2013-06-12 | 海尔集团公司 | Multi-split air-conditioning indoor and outdoor unit mistaken wiring detection method |
| CN103822326A (en) * | 2012-11-19 | 2014-05-28 | 珠海格力电器股份有限公司 | Outdoor unit performance test method, server and system |
| CN103822326B (en) * | 2012-11-19 | 2018-09-04 | 珠海格力电器股份有限公司 | Outer machine performance test methods, server and system |
| CN103913669A (en) * | 2014-04-18 | 2014-07-09 | 广东美的暖通设备有限公司 | Wiring error detection method and device and heating and ventilation device |
| CN105588725A (en) * | 2015-02-04 | 2016-05-18 | 青岛海信日立空调系统有限公司 | Air conditioner automatic test method, air conditioner automatic test device and air conditioner automatic test system |
| CN104848486B (en) * | 2015-05-14 | 2017-11-24 | 珠海格力电器股份有限公司 | The performance parameter testing system and air-conditioning system of a kind of air conditioner |
| CN104848486A (en) * | 2015-05-14 | 2015-08-19 | 珠海格力电器股份有限公司 | Performance parameter testing system of air conditioner and air conditioning system |
| CN106247530A (en) * | 2016-07-29 | 2016-12-21 | 海信（山东）空调有限公司 | Many air-conditionings self checking method is dragged in many control frequency conversion one |
| CN106247530B (en) * | 2016-07-29 | 2019-05-21 | 海信（山东）空调有限公司 | More air-conditioning self checking methods are dragged in multitube frequency conversion one |
| CN107063729A (en) * | 2017-04-18 | 2017-08-18 | 南方英特空调有限公司 | A kind of vehicle air conditioner temperature Linear testing method and system based on host computer |
| CN107063729B (en) * | 2017-04-18 | 2019-04-16 | 南方英特空调有限公司 | A kind of vehicle air conditioner temperature Linear testing method and system based on host computer |
| CN108088039A (en) * | 2017-11-27 | 2018-05-29 | 芜湖美智空调设备有限公司 | Air conditioner examines control method and control device, storage medium and remote control equipment |
| CN108088039B (en) * | 2017-11-27 | 2020-03-27 | 芜湖美智空调设备有限公司 | Air conditioner inspection control method and control device, storage medium and remote control equipment |
| CN113983651A (en) * | 2021-11-23 | 2022-01-28 | 海信（广东）空调有限公司 | Air conditioner and control method thereof |
| CN113983651B (en) * | 2021-11-23 | 2023-04-14 | 海信（广东）空调有限公司 | Air conditioner and control method thereof |
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