CN1936533A - Frequency-variation indoor machine automatic testing circuit, apparatus and method - Google Patents
Frequency-variation indoor machine automatic testing circuit, apparatus and method Download PDFInfo
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- CN1936533A CN1936533A CNA2006101226852A CN200610122685A CN1936533A CN 1936533 A CN1936533 A CN 1936533A CN A2006101226852 A CNA2006101226852 A CN A2006101226852A CN 200610122685 A CN200610122685 A CN 200610122685A CN 1936533 A CN1936533 A CN 1936533A
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Abstract
This invention relates to a method for automatically testing frequency conversion indoor sets in the production of frequency conversion air-conditioning, which utilizes a switch volume collection circuit to set test conditions matched to tested frequency conversion indoor sets, then uses a single-chip processor and matched test software to control automatically the infrared emission circuit to send instructions to the tested indoor set and communicates with it to get communication signals to judge the test result by monitoring the communication signals and reading the contents of the signals and control the display circuit to display the result. This invention provides a basic test circuit, a test device and method based on the circuit and finishes the tests including refrigeration low wind, middle wind and high wind, heating high wind and temperature-sensing tank automatically.
Description
Technical field
The present invention relates to the air conditioner field, relate in particular to circuit, the device and method in the convertible frequency air-conditioner production run convertible frequency air-conditioner indoor set tested automatically.
Background technology
Convertible frequency air-conditioner is relative common air-conditioning, and the compression motor of common air-conditioning adopts AC induction motor, and rotating speed is constant.Convertible frequency air-conditioner then adopts frequency-changeable compressor, regulates compressor rotary speed by frequency change, and refrigerating capacity is changed continuously, adapts to the needs of air conditioner load.
Convertible frequency air-conditioner indoor set and off-premises station are that operation is controlled in mutual communication, and the control system of convertible frequency air-conditioner and frequency conversion system are comparatively complicated, and electric component is many, and steering logic is also complicated.Usually, the test to the convertible frequency air-conditioner indoor set comprises refrigeration low wind test, refrigeration middle wind test, refrigeration high wind test, heating high wind test and temperature-sensing tank test.Yet, in the production run of convertible frequency air-conditioner indoor set, there are not special-purpose proving installation and method of testing at present to the convertible frequency air-conditioner indoor set, generally be to finish by manually-operated.The manually-operated test of main dependence makes quality inspection not high, and length consuming time, influences general assembly production testing efficient.
Summary of the invention
The object of the present invention is to provide a kind of test circuit, proving installation and corresponding method of testing of convertible frequency air-conditioner indoor machine automatic testing.
For achieving the above object, frequency-variation indoor machine automatic testing circuit of the present invention, comprise single-chip microcomputer, switching power circuit, the infrared emission circuit, communicating circuit, the switch acquisition circuit, display circuit, the output terminal of switching power circuit connects single-chip microcomputer, the infrared emission circuit, communicating circuit, the switch acquisition circuit, the feeder ear of display circuit, the switch acquisition circuit connects with the corresponding pin of single-chip microcomputer, test condition is set, the corresponding pin with single-chip microcomputer of infrared emission circuit connects, be subjected to Single-chip Controlling to send remote signal to tested frequency-variation indoor machine, communicating circuit is connected with the connection of tested frequency-variation indoor machine on the one hand, be connected with the communication terminal of single-chip microcomputer on the other hand, display circuit connects with the corresponding pin of single-chip microcomputer, is subjected to Single-chip Controlling to show test condition, test mode and test result.
For achieving the above object, the invention provides a kind of frequency-variation indoor machine automatic testing case, comprise housing, power supply communication board, control main board and infrared emission plate, control main board and power supply communication board all are arranged in the housing, switching power circuit and communicating circuit are set on the power supply communication board, single-chip microcomputer, switch acquisition circuit and display circuit are set on the control main board, housing has and is used to the panel operating and show, the button of switch acquisition circuit and the display device of display circuit also are distributed in the corresponding position of panel, and the infrared emission circuit is set on the infrared emission plate.
For achieving the above object, the invention provides a kind of frequency-variation indoor machine automatic testing method, comprise refrigeration low wind test, refrigeration middle wind test, refrigeration high wind test, heating high wind test to indoor set, it is characterized in that: automatically perform with the above-mentioned every testing sequence of Single-chip Controlling, after above-mentioned every test is all qualified, then judge whole test passes, wherein, above-mentioned each test includes following steps: (1) sends corresponding guidance command to tested indoor set; (2) judge whether corresponding communication passback was arranged in the stipulated time, if having then judge this test passes, if not then judge this test failure, and correspondence shows test results.
As mentioned above, the present invention at first utilizes the switch acquisition circuit to set every test condition of mating with tested frequency-variation indoor machine, utilize single-chip microcomputer and supporting testing software to control the infrared emission circuit automatically again and send order to tested frequency-variation indoor machine, and by communicating circuit and tested frequency-variation indoor machine communication, obtain communication signal, by the content that has, do not have and understand communication signal of monitoring communication signal, judge the result of test, and the control display circuit shows test results.The invention provides a kind of basic test circuit, provide proving installation, and disclose corresponding method of testing based on this test circuit.The present invention can finish the multinomial test that comprises refrigeration low wind test, refrigeration middle wind test, refrigeration high wind test, heating high wind test and temperature-sensing tank test automatically.Avoid in the prior art the low and low defective of checkability of quality inspection among the manual testing, had obvious improvement.
Description of drawings
Fig. 1 is the theory diagram of frequency-variation indoor machine automatic testing circuit provided by the invention;
Fig. 2 is the single-chip microcomputer of frequency-variation indoor machine automatic testing circuit provided by the invention and the synoptic diagram of SCM peripheral circuit;
Fig. 3 is the synoptic diagram of the switching power circuit of frequency-variation indoor machine automatic testing circuit provided by the invention;
Fig. 4 is the synoptic diagram of the communicating circuit of frequency-variation indoor machine automatic testing circuit provided by the invention;
Fig. 5 is the synoptic diagram of the power-failure memory circuit of frequency-variation indoor machine automatic testing circuit provided by the invention;
Fig. 6 is the synoptic diagram of the switch acquisition circuit of frequency-variation indoor machine automatic testing circuit provided by the invention;
Fig. 7 is the synoptic diagram of the charactron driving circuit of frequency-variation indoor machine automatic testing circuit provided by the invention;
Fig. 8 is the synoptic diagram of the drive circuit of indicator of frequency-variation indoor machine automatic testing circuit provided by the invention;
Fig. 9 is the synoptic diagram of the buzzer circuit of frequency-variation indoor machine automatic testing circuit provided by the invention;
Figure 10 is the synoptic diagram of the infrared emission circuit of frequency-variation indoor machine automatic testing circuit provided by the invention;
Figure 11 is the composition structured flowchart of frequency-variation indoor machine automatic testing case provided by the invention;
Figure 12 is the synoptic diagram of the user mode of frequency-variation indoor machine automatic testing case provided by the invention;
Figure 13 is the synoptic diagram of panel of the housing of frequency-variation indoor machine automatic testing case provided by the invention;
Figure 14 is the process flow diagram of frequency-variation indoor machine automatic testing method provided by the invention.
Embodiment
As shown in Figure 1, frequency-variation indoor machine test circuit provided by the invention comprises single-chip microcomputer, switching power circuit, the infrared emission circuit, communicating circuit, the switch acquisition circuit, display circuit, the output terminal of switching power circuit connects single-chip microcomputer, the infrared emission circuit, communicating circuit, the switch acquisition circuit, the feeder ear of display circuit, the switch acquisition circuit connects with the corresponding pin of single-chip microcomputer, test condition is set, the corresponding pin with single-chip microcomputer of infrared emission circuit connects, be subjected to Single-chip Controlling to send remote signal to tested frequency-variation indoor machine, communicating circuit is connected with the connection of tested frequency-variation indoor machine on the one hand, be connected with the communication terminal of single-chip microcomputer on the other hand, display circuit connects with the corresponding pin of single-chip microcomputer, is subjected to Single-chip Controlling to show test condition, test mode and test result.Described display circuit comprises charactron display circuit, drive circuit of indicator and buzzer drive circuit.This frequency-variation indoor machine automatic testing circuit also comprises the power-failure memory circuit, and corresponding pin with single-chip microcomputer connects.
The composition and the annexation of frequency-variation indoor machine automatic testing circuit provided by the invention are described in detail in detail below in conjunction with physical circuit.
See also Fig. 2, the single-chip microcomputer 101 that frequency-variation indoor machine automatic testing circuit provided by the invention adopts is the single-chip microcomputer of M38039FFSP model.This single-chip microcomputer has 64 pins, and pin numbering and pin title are as shown in Figure 2.Single-chip microcomputer 101 peripheries are provided with peripheral circuit, comprise crystal oscillating circuit 102, reset circuit 103 and electric source filter circuit 104.
Fig. 3 is the synoptic diagram of the switching power circuit that frequency-variation indoor machine automatic testing circuit provided by the invention adopted.This circuit is a kind of existing and switching power circuit that industry is known, and it mainly is made of bridge rectifier circuit 201, single-chip switching power supply integrated chip (TOP243Y) 202, high-frequency transformer (KDB-28-04029) 203.Its principle of work is: the alternating current of 220V is through behind the bridge rectifier circuit 201, obtain the high direct voltage of about+300V, this high direct voltage is by monolithic Switching Power Supply integrated chip (TOP243Y) 202 copped waves, and by high-frequency transformer (KDB-28-04029) 203 step-downs, become the square-wave voltage that frequency is tens KHz, through the output rectifying and wave-filtering, obtain stable VD+12V again, pass through the direct supply of three-terminal voltage-stabilizing chip (7805) 204 back output+5V again.Switching power circuit output+12V and+5V is used to the feeder ear of input end, infrared emission circuit, communicating circuit, switch acquisition circuit, power-failure memory circuit, charactron display circuit, drive circuit of indicator and buzzer drive circuit of electric source filter circuit of the periphery of single-chip microcomputer 101 that direct supply is provided.
Fig. 4 is the synoptic diagram of the communicating circuit that frequency-variation indoor machine automatic testing circuit provided by the invention adopted.This circuit is a kind of existing and communicating circuit that industry is known, mainly is made of diode rectification filtering circuit 301, photoelectric coupled circuit 305,306.This communicating circuit has COMM link, AC-N link, TXD link and RXD link, the COMM link connects the connection of tested indoor set, the AC-N end connects zero line, the TXD end is connected with the pin 59 of single-chip microcomputer, the RXD end is connected (" U1-59 " represents that this link is connected with the pin 59 of single-chip microcomputer 101 among the figure, and " U1-60 " represents that this link is connected with the pin 60 of single-chip microcomputer 101) with the pin 60 of single-chip microcomputer.
Fig. 5 is the synoptic diagram of the power-failure memory circuit that frequency-variation indoor machine automatic testing circuit provided by the invention adopted.This power-failure memory circuit is made of the chip 401 of AT24C02 model, and AT24C02 is the eeprom chip of 2K position, the setting before preserving when being used for sending a telegram here again after outage.The clock signal terminal SCLK of AT24C02 is connected with the pin two 9 of single-chip microcomputer 101, and data-signal end SDA is connected with the pin two 8 of single-chip microcomputer 101, and write-protect is put low level and allowed write operation.
Fig. 6 is the synoptic diagram of the switch acquisition circuit that frequency-variation indoor machine automatic testing circuit provided by the invention adopted.Comprise seven independently button Acquisition Circuit K1-K7 among the figure, be respectively reset button Acquisition Circuit, telepilot selector button Acquisition Circuit, automatic testing button Acquisition Circuit, power-on protection button Acquisition Circuit, frequency conversion/fixed button Acquisition Circuit frequently and frequency conversion type selector button Acquisition Circuit (in conjunction with consulting Figure 13).Each button Acquisition Circuit is made of pushbutton switch 503, pull-up resistor 501, current-limiting resistance 502 and electric capacity 504, pushbutton switch 503 connects+the 5V direct supply by pull-up resistor 501, the other end ground connection of pushbutton switch 503, when pressing the button switch, signal end ground connection is connected to the corresponding I/O end of single-chip microcomputer by current-limiting resistance 502, when not pressing the button, signal termination+5V, filtering was used when electric capacity 504 was pushbutton switch." U1-14 " shown in the figure, " U1-5 ", " U1-25 ", " U1-16 ", " U1-12 ", " U1-4 ", " U1-61 " represent that respectively this end is connected with the pin one 4,5,25,16,12,4,61 of single-chip microcomputer 101.
Fig. 7 is the synoptic diagram of the charactron display circuit that frequency-variation indoor machine automatic testing circuit provided by the invention adopted.The charactron display circuit that present embodiment provides comprises environment temperature charactron display circuit, indoor pipe temperature charactron display circuit, intervalve temperature charactron display circuit and goes out to manage warm charactron display circuit (please in conjunction with consulting Figure 13).Above-mentioned each display circuit has two 8 common cathode charactrons 601, has four two 8 common cathode charactrons.The output of the pin 33-40 of single-chip microcomputer is through the digital pipeline section choosing of chip KID65783 (number in the figure is 604) rear drive, the output that eight position gatings are crossed single-chip microcomputer pin 41-48 adopts dynamic scan driving wheel flow point bright through chip ULN2003 (number in the figure is 602 and 603) reverse drive.
Fig. 8 is the synoptic diagram of the drive circuit of indicator that frequency-variation indoor machine automatic testing circuit provided by the invention adopted.The drive circuit of indicator that present embodiment provides comprises test judgement drive circuit of indicator, functional indicator light driving circuit, indicating fault lamp drive circuit, telepilot selection drive circuit of indicator, frequency conversion type selection drive circuit of indicator, power-on protection drive circuit of indicator and frequency conversion/fixed drive circuit of indicator (please in conjunction with consulting Figure 13) frequently.Because of drive circuit of indicator is the prior art of knowing, thus only illustrate among Fig. 8 the part drive circuit of indicator and with the annexation of single-chip microcomputer.Among the figure, pilot lamp 701 is by ULN2003 chip (number in the figure is 703,704 and 705) reverse drive, and the ULN2003 chip connects with the corresponding pin of single-chip microcomputer 101." U1-51 " shown in the figure, " U1-52 ", " U1-53 ", " U1-54 ", " U1-55 ", " U1-56 ", " U1-52 ", " U1-58 ", " U1-64 ", " U1-17 ", " U1-18 ", " U1-19 ", " U1-20 ", " U1-21 ", " U1-63 ", " U1-62 " represent that respectively this end is connected with the pin 51,52,53,54,55,56,52,58,64,17,18,19,20,21,63,62 of single-chip microcomputer 101.
Fig. 9 is the synoptic diagram of the buzzer drive circuit that frequency-variation indoor machine automatic testing circuit provided by the invention adopted.The pin one 3 of single-chip microcomputer 101 produces the waveform of 2KHz, by ULN2003 chip (number in the figure is 802) reverse drive hummer 801.
Figure 10 is the synoptic diagram of the infrared emission circuit that frequency-variation indoor machine automatic testing circuit provided by the invention adopted.The pin one 5 of single-chip microcomputer 101 produces the signal of carrier wave 38KHz, and after triode 901 amplified, excitation infrarede emitting diode 902 produced infrared remote-controlled signal.
Please, the invention provides a kind of frequency-variation indoor machine automatic testing case in conjunction with consulting Figure 11 and Figure 12.See also Figure 11, comprise housing 100, power supply communication board 120, control main board 140 and infrared emission plate 160, control main board 140, power supply communication board 120 and infrared emission plate 160 all are arranged in the housing 100.Wherein, above-mentioned switching power circuit and communicating circuit are set on the power supply communication board 120, be provided with on the control main board 140 on above-mentioned single-chip microcomputer, switch acquisition circuit and display circuit (comprising charactron display circuit, drive circuit of indicator and the buzzer drive circuit) control main board 140 and also be provided with the power-failure memory circuit, above-mentioned infrared emission circuit is set on the infrared emission plate 160.
In the present embodiment, reset button Acquisition Circuit, telepilot selector button Acquisition Circuit, automatic testing button Acquisition Circuit, power-on protection button Acquisition Circuit, frequency conversion/fixed button Acquisition Circuit frequently and frequency conversion type selector button Acquisition Circuit button separately are arranged on the control main board 140 by certain queueing discipline in the switch acquisition circuit.Each display device of display circuit comprises that the charactron of charactron display circuit, the pilot lamp of drive circuit of indicator also are arranged on the control main board 140 by certain queueing discipline.See also Figure 13, housing 100 has and is used to the panel 180 operating and show, and after the assembling, the button of all switch acquisition circuit and the display device of display circuit are distributed in the corresponding position of panel 180.Hummer can be installed on the panel 180, also can be installed in housing 100 inside.
Wherein infrared emission plate 160 also can be installed in the outside of frequency-variation indoor machine automatic testing tank shell 100.As Figure 12, in the present embodiment, also comprise external infrared emission plate 165, be arranged on described outside, after being used for tested indoor unit panel and starting, standby when built-in infrared panel 160 can not work.
Below in conjunction with Figure 13 and Figure 14, describe frequency-variation indoor machine automatic testing method provided by the invention in detail.
At first, by down coversion/fixed button frequently, be chosen as frequency conversion, and press frequency changer selector button and telepilot selector button, select communications protocol and the remote controller code corresponding with tested indoor set, for example selecting type is that direct current one-to-one, remote controller code are the F sign indicating number, selects the back frequency changer to select zone and telepilot to select the pilot lamp of regional correspondence bright.Whether afterwards, press automatic testing button, just at first carry out refrigeration low wind test, promptly earlier send the low wind guidance command of refrigeration to tested indoor set, judging having the low wind communication passback of refrigeration again in the stipulated time, if having then judge that refrigeration low wind test is qualified; If not then judge that refrigeration low wind test is defective, the low wind trouble light of refrigeration this moment is bright, buzzer warning, and defective lamp is bright.Afterwards, Single-chip Controlling automatically order is carried out refrigeration middle wind test, refrigeration high wind test, three tests of heating high wind test, and each test in ensuing three tests includes following steps: (1) sends corresponding guidance command to tested indoor set; (2) judge whether corresponding communication passback was arranged in the stipulated time, if having then judge this test passes, if do not have corresponding communication passback then judge this test failure, and correspondence shows test results; (3) if corresponding communication passback is arranged in the step (2), then judge according to return path signal whether temperature-sensing tank test is qualified.Wherein, particularly, during for frequency conversion one-to-one indoor apparatus of air conditioner, be by return path signal being understood the value of obtaining environment temperature and indoor pipe temperature earlier, show by the charactron display circuit, relatively the deviation of environment temperature and indoor temperature whether at 2 degree with interior and be not 0 to spend, if judge that then bulb is qualified, otherwise judge that bulb is defective, this moment, the bulb malfunction indicator lamp was bright; When dragging many indoor apparatus of air conditioner for frequency conversion one, it is the value (showing) of obtaining environment temperature, indoor pipe temperature, intervalve temperature earlier and going out Guan Wen by return path signal is understood by the charactron display circuit, intervalve temperature and go out to manage the benign environment temperature and whether the deviation of indoor pipe temperature is spent with interior and be not 0 to spend 2 relatively, if judge that then bulb is qualified, otherwise judge that bulb is defective, and the bulb malfunction indicator lamp is bright.After above-mentioned multinomial test was all qualified, then qualified lamp was bright.In the test process, functional indicator light lights when the functional test of correspondence, and shows whether communication is normal.The power-on protection button is used for selecting whether to be with memory, the bright expression band memory of lamp, and lamp goes out and represents not to be with memory.Reset button is used for removing the fault that the indicating fault zone shows and all are at the survey state.
Wherein, described step (1) realizes by Single-chip Controlling infrared emission circuit.Communication passback in the described step (2) is that single-chip microcomputer is connected realization by communicating circuit with the connection of tested indoor set.Show test results and realize by Single-chip Controlling indicator light circuit, charactron driving circuit and buzzer circuit.
The present invention launches the remote controller code of corresponding every test automatically by indoor apparatus of air conditioner testing software control infrared emission circuit supporting in the single-chip microcomputer, automatically performs the low pneumatic work of refrigeration, the action of refrigeration apoplexy, the high pneumatic work of refrigeration, heats high pneumatic work thereby control tested indoor set.Many various protocols are dragged in the integrated frequency conversion one-to-one of the present invention, frequency conversion one, can be by communicating circuit and the tested frequency-variation indoor machine communication of polytype, obtain and show running status and bulb data when indoor set is carried out various actions, communication passback to the tested indoor set of every test detects and analyzes, whether every test of judging indoor set is qualified, judges in whole test process whether the bulb data of indoor set are qualified.In the whole test process, and by the corresponding test result of the every test of Single-chip Controlling indicator light circuit, charactron driving circuit and buzzer circuit demonstration.
Claims (18)
1. frequency-variation indoor machine automatic testing circuit, it is characterized in that: comprise single-chip microcomputer, switching power circuit, the infrared emission circuit, communicating circuit, the switch acquisition circuit, display circuit, the output terminal of switching power circuit connects single-chip microcomputer, the infrared emission circuit, communicating circuit, the switch acquisition circuit, the feeder ear of display circuit, the switch acquisition circuit connects with the corresponding pin of single-chip microcomputer, test condition is set, the corresponding pin with single-chip microcomputer of infrared emission circuit connects, be subjected to Single-chip Controlling to send remote signal to tested frequency-variation indoor machine, communicating circuit is connected with the connection of tested frequency-variation indoor machine on the one hand, be connected with the communication terminal of single-chip microcomputer on the other hand, display circuit connects with the corresponding pin of single-chip microcomputer, is subjected to Single-chip Controlling to show test condition, test mode and test result.
2. frequency-variation indoor machine automatic testing circuit as claimed in claim 1; wherein, described switch acquisition circuit comprises reset button Acquisition Circuit, telepilot selector button Acquisition Circuit, automatic testing button Acquisition Circuit, power-on protection button Acquisition Circuit, frequency conversion/fixed button Acquisition Circuit and frequency conversion type selector button Acquisition Circuit frequently.
3. frequency-variation indoor machine automatic testing circuit as claimed in claim 1, wherein, described display circuit comprises charactron display circuit, drive circuit of indicator and buzzer drive circuit.
4. frequency-variation indoor machine automatic testing circuit as claimed in claim 3, wherein, described charactron display circuit comprises environment temperature charactron display circuit, indoor pipe temperature charactron display circuit, intervalve temperature charactron display circuit and goes out to manage warm charactron display circuit.
5. frequency-variation indoor machine automatic testing circuit as claimed in claim 3; wherein, described drive circuit of indicator comprises test judgement drive circuit of indicator, functional indicator light driving circuit, indicating fault lamp drive circuit, telepilot selection drive circuit of indicator, frequency conversion type selection drive circuit of indicator, power-on protection drive circuit of indicator and frequency conversion/fixed drive circuit of indicator frequently.
6. frequency-variation indoor machine automatic testing circuit as claimed in claim 1, wherein, described frequency-variation indoor machine automatic testing circuit also comprises the power-failure memory circuit, corresponding pin with single-chip microcomputer connects.
7. frequency-variation indoor machine automatic testing case, it is characterized in that: comprise housing, power supply communication board, control main board and infrared emission plate, control main board and power supply communication board all are arranged in the housing, switching power circuit and communicating circuit are set on the power supply communication board, single-chip microcomputer, switch acquisition circuit and display circuit are set on the control main board, housing has and is used to the panel operating and show, the button of switch acquisition circuit and the display device of display circuit also are distributed in the corresponding position of panel, and the infrared emission circuit is set on the infrared emission plate.
8. frequency-variation indoor machine automatic testing case as claimed in claim 7 wherein, also is provided with the power-failure memory circuit on the control main board.
9. frequency-variation indoor machine automatic testing case as claimed in claim 7 is characterized in that: described infrared emission plate is installed in described enclosure interior.
10. frequency-variation indoor machine automatic testing case as claimed in claim 9 is characterized in that: also comprise external infrared emission plate, be arranged on described outside.
11. frequency-variation indoor machine automatic testing method, comprise refrigeration low wind test, refrigeration middle wind test, refrigeration high wind test, heating high wind test to indoor set, it is characterized in that: automatically perform with the above-mentioned every testing sequence of Single-chip Controlling, after above-mentioned every test is all qualified, then judge whole test passes, wherein, above-mentioned each test includes following steps: (1) sends corresponding guidance command to tested indoor set; (2) judge whether corresponding communication passback was arranged in the stipulated time, if having then judge this test passes, if not then judge this test failure, and correspondence shows test results.
12. frequency-variation indoor machine automatic testing method as claimed in claim 11 wherein, in the described step (2), is judged when defective, is after a specific waiting time as does not still have the communication passback, then judges this test failure.
13. frequency-variation indoor machine automatic testing method as claimed in claim 11, wherein, each test in refrigeration middle wind test, refrigeration high wind test, each test of heating high wind test also comprises step: (3) then judge according to this return path signal whether temperature-sensing tank test is qualified if corresponding communication passback is arranged in the step (2).
14. frequency-variation indoor machine automatic testing method as claimed in claim 13, wherein, in the described temperature-sensing tank test, be by return path signal being understood the value of obtaining environment temperature and indoor pipe temperature earlier, relatively the deviation of environment temperature and indoor pipe temperature whether at 2 degree with interior and be not 0 to spend, if judge that then bulb is qualified, otherwise judge that bulb is defective, and display result.
15. frequency-variation indoor machine automatic testing method as claimed in claim 13, wherein, in the described temperature-sensing tank test, be by return path signal being understood the value of obtaining environment temperature, indoor pipe temperature, intervalve temperature earlier and going out Guan Wen, the deviation that compares pipe temperature and intervalve benign environment temperature and indoor pipe temperature whether at 2 degree with interior and be not 0 to spend, if judge that then bulb is qualified, otherwise judge that bulb is defective, and display result.
16. frequency-variation indoor machine automatic testing method as claimed in claim 11, wherein, described step (1) realizes by Single-chip Controlling infrared emission circuit.
17. frequency-variation indoor machine automatic testing method as claimed in claim 11, wherein, the communication passback in the described step (2) is that single-chip microcomputer is connected realization by communicating circuit with the connection of tested indoor set.
18. frequency-variation indoor machine automatic testing method as claimed in claim 11 wherein, shows test results and is realized by Single-chip Controlling indicator light circuit, charactron driving circuit and buzzer circuit.
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| CN103308079A (en) * | 2012-03-12 | 2013-09-18 | 博西华电器（江苏）有限公司 | Household electrical appliance and gear detection device thereof as well as stove and smoke exhaust ventilator assembly |
| CN103023307A (en) * | 2012-12-28 | 2013-04-03 | 上海派芬自动控制技术有限公司 | On-off input circuit and controller |
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