CN116909248A - Automatic testing method and device for control panel of washing machine - Google Patents
Automatic testing method and device for control panel of washing machine Download PDFInfo
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- CN116909248A CN116909248A CN202310912272.8A CN202310912272A CN116909248A CN 116909248 A CN116909248 A CN 116909248A CN 202310912272 A CN202310912272 A CN 202310912272A CN 116909248 A CN116909248 A CN 116909248A
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- 238000005406 washing Methods 0.000 title claims abstract description 90
- 238000012360 testing method Methods 0.000 title claims abstract description 32
- 238000010438 heat treatment Methods 0.000 claims abstract description 34
- 238000000034 method Methods 0.000 claims abstract description 22
- 238000001514 detection method Methods 0.000 claims abstract description 19
- 230000009471 action Effects 0.000 claims abstract description 17
- 238000010998 test method Methods 0.000 claims abstract description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 89
- 238000004458 analytical method Methods 0.000 claims description 17
- 238000003745 diagnosis Methods 0.000 claims description 13
- 230000008569 process Effects 0.000 claims description 7
- 238000007789 sealing Methods 0.000 claims description 5
- 239000012528 membrane Substances 0.000 claims description 4
- 238000007664 blowing Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 description 4
- 230000000712 assembly Effects 0.000 description 3
- 238000000429 assembly Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 1
- 235000017491 Bambusa tulda Nutrition 0.000 description 1
- 241001330002 Bambuseae Species 0.000 description 1
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 1
- 239000011425 bamboo Substances 0.000 description 1
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- 238000004891 communication Methods 0.000 description 1
- 238000007405 data analysis Methods 0.000 description 1
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- 238000010586 diagram Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
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- 238000012795 verification Methods 0.000 description 1
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B23/00—Testing or monitoring of control systems or parts thereof
- G05B23/02—Electric testing or monitoring
- G05B23/0205—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults
- G05B23/0218—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults characterised by the fault detection method dealing with either existing or incipient faults
- G05B23/0221—Preprocessing measurements, e.g. data collection rate adjustment; Standardization of measurements; Time series or signal analysis, e.g. frequency analysis or wavelets; Trustworthiness of measurements; Indexes therefor; Measurements using easily measured parameters to estimate parameters difficult to measure; Virtual sensor creation; De-noising; Sensor fusion; Unconventional preprocessing inherently present in specific fault detection methods like PCA-based methods
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- Control Of Washing Machine And Dryer (AREA)
Abstract
The invention discloses an automatic test method for a control panel of a washing machine, which comprises the following steps: 1) The method comprises the steps that a detected washing machine control board is arranged on a complete machine, and a plurality of pairs of first temperature sensing components and second temperature sensing components which are connected with the washing machine control board are arranged at the upper and lower positions of a washing cavity in the washing machine; 2) Locking action detection procedure: after the machine is started through the measured and controlled board, the door needs to be locked, the signal detection module can detect the door lock signal at the same time, and the final result is fed back to the diagnosis software in real time; 3) A heating operation detection step: according to the acquisition of the current signals, whether the heating pipe works or not is judged, meanwhile, the total heating time can be calculated, and whether the temperature signals and the preset target temperature are in an error range or not is monitored through the first temperature sensing assembly and the second temperature sensing assembly. The invention reduces the test time of the test personnel to verify the system function, and simultaneously can reduce misjudgment and missed judgment caused by various factors of the test personnel, thereby improving the whole test performance and efficiency.
Description
Technical Field
The invention relates to the field of automatic testing methods of control panels of washing machines, in particular to an automatic testing method and device of a control panel of a washing machine.
Background
At present, the existing automatic test of the control panel of the washing machine is similar to the traditional manual test method, namely, the control panel of the washing machine to be tested is arranged on the whole machine, various main signals and states on the whole machine are monitored and compared with expected preset results, and the results are consistent and are regarded as being qualified in test, otherwise, the results are regarded as being failed. According to the traditional testing method, a tester is required to select different washing function configurations, such as options of water level, speed, temperature and the like according to the operation specification of the whole machine function specification, then a start button is pressed to start washing automatic operation until one washing process is finished, the tester is required to monitor each washing process and detail in real time in the process, each action step is observed and analyzed in real time according to different execution states and processes, and a manual judgment is made according to subjective and experience to judge whether a control board of the washing machine is executing according to an expected result, wherein the control board is required to be thinned to each link, and all relevant information data of the washing machine, such as a water inlet required set water level, a heating target temperature, washing time, heating time, washing speed, dewatering speed and the like are included. Therefore, the method has the advantages that very high requirements are put forward on testers, the executing steps and some professional knowledge of the washing machine are known one by one, the executing process can be judged in real time, otherwise, misjudgment or missed judgment can be caused, and the testing efficiency and reliability are reduced.
Disclosure of Invention
Aiming at the problems, the invention provides an automatic testing method for a control panel of a washing machine, which solves the defects that the existing testing method is easy to misjudge or miss judge, and reduces the testing efficiency and reliability.
The technical scheme adopted by the invention is as follows:
an automatic test method for a control panel of a washing machine, comprising:
1) The method comprises the steps that a detected washing machine control board is arranged on a complete machine, and a plurality of pairs of first temperature sensing components and second temperature sensing components which are connected with the washing machine control board are arranged at the upper and lower positions of a washing cavity in the washing machine;
2) Locking action detection procedure: after the machine is started through the measured and controlled board, the door is locked firstly, the signal detection module can detect the door lock signal at the same time, the final result is fed back to the diagnosis software in real time, the diagnosis software can compare with the preset result when the machine is started by the locking signal, and if the locking signal cannot be detected all the time, the locking recognition prompt can be recognized to report errors;
3) A heating operation detection step: according to the acquisition of the current signals, whether the heating pipe works is judged, meanwhile, the total heating time can be calculated, under the condition that the set temperature is not reached, the heating pipe needs to continuously work until the temperature is reached, and the heating time is compared with the preset heating time, so that whether the heating time is met is judged, meanwhile, whether the temperature signals and the preset target temperature are in an error range is monitored through the first temperature sensing assembly and the second temperature sensing assembly, the deviation of water flow to temperature acquisition is evaluated, the deviation of the part is compensated through a program, and the stability of temperature control is further ensured.
According to the invention, various signals in the control process of the washing machine are automatically collected by utilizing the collection module, and are matched with the data diagnosis analysis software, each data validity analysis and diagnosis are carried out according to each operation stage of the washing machine and the preset target value, so that the test result is automatically obtained.
Optionally, the method further comprises a water inlet action detection procedure, wherein the water inlet action operation procedure comprises that the measured and controlled board can perform water inlet operation at a certain stage according to a preset flow, water can be fed in at fixed time, water can be fed in according to a certain set target water level, when the set water level or water inlet time is reached, water feeding is stopped, next action is performed, the signal detection module feeds back a water level signal detected in real time to diagnostic software, the diagnostic software performs secondary treatment on the current signal, and whether the current water level signal and the preset target water level are within an allowable error range is sequentially determined by taking the finally treated water level signal as a judgment basis.
Optionally, the first temperature sensing assembly includes temperature sensor, the second temperature sensing assembly includes temperature sensor and overcoat at temperature sensor surface's water collector, the water collector includes a rotary drum, the rotary drum includes outer barrel and inner barrel, install movable section of thick bamboo between outer barrel and the inner barrel.
Optionally, the movable cylinder is including the flexible bucket that is located the top and the screw thread barrel that is located flexible bucket bottom, at least local screw thread cooperation between the inside wall of outer barrel and the lateral wall of screw thread barrel, the outside of outer barrel is equipped with first gear and driving motor, first gear one side meshing has the second gear, the second gear is equipped with on driving motor's the output shaft, driving motor is used for driving second gear corotation or reversal, the equal electric connection washing machine control panel of first temperature sensing subassembly and second temperature sensing subassembly, driving motor electric connection washing machine control panel.
Optionally, the flexible fill includes polylith guide plate and connects the elastic membrane of two adjacent guide plates, the top of screw thread barrel is articulated through the free bearing to the bottom of guide plate, be equipped with the torsional spring on the free bearing, the one end fixed connection screw thread barrel of torsional spring, the other end fixed connection guide plate, the torsional spring is used for providing the elasticity that makes the guide plate outwards extend.
Optionally, the bottoms of the outer cylinder body and the inner cylinder body are provided with bottom plates, the bottoms of the threaded cylinder bodies are provided with extension rods, and the bottoms of the movable ends of the extension rods are provided with first pistons.
Optionally, the area under the first piston is connected to the area outside the second piston by a catheter.
Optionally, a movable cavity is arranged in the bottom plate, and a water outlet hole is arranged in the middle of the bottom plate.
Optionally, be equipped with a pair of second pistons that are located the hole both sides of blowing respectively in the activity intracavity, the second piston top is equipped with first rack, the second rack is equipped with to the bottom in activity chamber, be equipped with between first rack and the second rack with first rack and second rack engaged third gear, the closing plate is connected to the second rack, closes or opens the apopore after the closing plate motion. In the invention, the method passes through.
The invention also discloses an automatic testing device for the control panel of the washing machine, which comprises: the washing machine comprises a washing machine control board, a signal acquisition module, a washing execution module and an analysis and diagnosis module, wherein a preset washing execution flow is contained in the washing machine control board, and meanwhile, the current execution state and target data are transmitted to the analysis and diagnosis module; the signal acquisition module is used for acquiring all key information in the whole system of the washing machine, and the analysis and diagnosis module is used for obtaining whether a final judgment result is normal or failed after the validity analysis, and then giving a correct target value prompt so as to facilitate fault analysis and judgment.
Advantageous effects
1. According to the invention, various signals in the control process of the washing machine are automatically collected by utilizing the collection module, and are matched with the data diagnosis analysis software, each data validity analysis and diagnosis are carried out according to each operation stage of the washing machine and the preset target value, so that the test result is automatically obtained.
2. The tested control board in the invention can not greatly change due to the replacement of machines, different sensors or other external equipment, and can not influence the test result.
Drawings
Fig. 1 is a flowchart of a washing machine control board operation of an automatic testing method of a washing machine control board of embodiment 1 of the present invention;
fig. 2 is a cross-sectional view of a first temperature sensing assembly of the automatic test method for a control board of a washing machine in accordance with embodiment 1 of the present invention;
FIG. 3 is a partially enlarged view of a portion of a first temperature sensing assembly A of the automatic test method for a control board of a washing machine in accordance with embodiment 1 of the present invention;
FIG. 4 is a top view partial block diagram of a telescoping bucket of the automated testing method for a control panel of a washing machine of embodiment 1 of the present invention;
fig. 5 is a flowchart showing the operation of the washing machine control board and the first and second temperature sensing assemblies according to the automatic testing method of the washing machine control board of embodiment 1 of the present invention.
The reference numerals in the drawings are as follows:
the device comprises a temperature sensor 2, a water collector 3, a rotating cylinder 4, an outer cylinder 5, an inner cylinder 6, a movable cylinder 7, a telescopic bucket 8, a threaded cylinder 9, a first gear 10, a driving motor 11, a second gear 12, a guide plate 13, an elastic membrane 14, a hinged support 15, a torsion spring 16, a bottom plate 17, an extension rod 18, a first piston 19, a liquid guide tube 20, a movable cavity 21, a water outlet hole 22, a second piston 23, a first rack 24, a second rack 25, a third gear 26 and a sealing plate.
Detailed Description
The following describes in further detail the embodiments of the present invention with reference to the drawings and examples. The following examples are illustrative of the invention and are not intended to limit the scope of the invention.
In the description of the present invention, unless otherwise indicated, the meaning of "a plurality" is two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front," "rear," "head," "tail," and the like are used as an orientation or positional relationship based on that shown in the drawings, merely to facilitate description of the invention and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "connected," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically connected, directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
Example 1
The technical scheme adopted by the invention is as follows:
as shown in fig. 1, the invention discloses an automatic test method for a control panel of a washing machine, comprising the following steps:
1) Mounting a control board of the washing machine to be tested on the whole machine; a plurality of pairs of first temperature sensing assemblies and second temperature sensing assemblies which are connected with a control panel of the washing machine are arranged at the upper and lower positions of an internal washing cavity of the washing machine;
2) Locking action detection procedure: after the machine is started through the measured and controlled board, the door is locked firstly, the signal detection module can detect the door lock signal at the same time, the final result is fed back to the diagnosis software in real time, the diagnosis software can compare with the preset result when the machine is started by the locking signal, and if the locking signal cannot be detected all the time, the locking recognition prompt can be recognized to report errors;
3) A heating operation detection step: according to the acquisition of the current signal, whether the heating pipe works is judged, meanwhile, the total heating time can be calculated, under the condition that the set temperature is not reached, the heating pipe needs to continuously work until the temperature is reached, and the heating time is compared with the preset heating time, so that whether the heating time is met is judged, meanwhile, whether the temperature signal is monitored through the first temperature sensing component and the second temperature sensing component, whether the temperature signal is within an error range with the preset target temperature is judged, and the deviation of water flow to the temperature acquisition is evaluated through comparing the temperature difference between the first temperature sensing component and the second temperature sensing component, so that the follow-up adjustment is facilitated.
4) The water inlet action detection procedure comprises a step that a measured and controlled board can perform water inlet operation at a certain stage according to a preset flow, water can be fed in at fixed time, water can be fed in according to a certain set target water level, water feeding is stopped when the set water level or water feeding time is reached, next action is performed, a signal detection module feeds back water level signals detected in real time to diagnostic software, the diagnostic software performs secondary treatment on current signals, and whether the current water level signals are within an allowable error range with the preset target water level is sequentially determined by taking the finally treated water level signals as a judgment basis.
Because the whole machine function of the washing machine involves a lot of flows and signal quantity, each link cannot be ignored when verifying all functions of the test control board, and all details can influence the final effect and performance of the washing machine. In order to accelerate the test efficiency and avoid misjudgment, the test bench and the testers are added for cross verification. The control panel of the washing machine is tested, because the control panel is consistent in action and flow at a certain stage under the same configuration option, the target values of some collected signals such as temperature, water level, speed and the like are consistent, and the difference does not influence the judgment of the final result due to individual differences caused by factors such as devices, sensors, different machines and the like, but only the response time reaching the target value is changed.
It should be noted that the signals in the washing machine system are collected in a plurality of different signals, including voltage, current and frequency; in addition, various signals such as alternating current and direct current coexist, all the signals need to be processed in a signal acquisition module, the signals are input by different channel interfaces according to different signal types, and meanwhile, the signals are numbered and classified to distinguish different signal processing modes, so that the signals in special occasions can be processed more reliably, and acquisition deviation caused by interference signals can be filtered effectively.
It should be noted that all signals in the embodiment need to be regulated into a common direct current 5V signal range, so that signal processing at the rear end is facilitated; for alternating current signals, multistage voltage division can be adopted to be within a range of 5V, and then the final signal is ensured not to exceed 5V through amplitude limiting of 5V direct current voltage; for the direct current analog signal, a high voltage signal exists, and the voltage after processing is ensured to be within the voltage range of 5V similar to the voltage dividing method. For some current signal collection, the current signal can be converted into a voltage signal and then converted into an effective voltage range which can be processed by the back end.
It should be noted that, in this embodiment, each signal acquisition is independent, and in order to effectively perform data analysis and judgment, a signal integration method is required to be adopted to classify and summarize all signals related to the whole machine, and the processed signal data is transmitted to the automated analysis and diagnosis software through the communication bus.
It should be noted that, in this embodiment, since the preset flows are all consistent, the complaint operation can be repeatedly performed for the same test flow, and if the external test conditions are unchanged, the expected results are all consistent. For example, after a machine is started through a measured and controlled board, a door is locked, a signal detection module can detect a door lock signal at the same time, a final result is fed back to diagnostic software in real time, the diagnostic software can compare with a preset result when the machine is started by the locked signal, and if the locking signal cannot be detected all the time, locking identification prompt and error report can be identified; for water inlet action, a measured and controlled board can perform water inlet operation at a certain stage according to a preset flow, water can be fed at a certain time, water inlet can be performed according to a certain set target water level, when the set water level or water inlet time is reached, water inlet is stopped, next action is performed, a signal detection module feeds back a water level signal detected in real time to diagnostic software, and because the water level signal is not a very stable signal due to the running of a machine, the diagnostic software still needs to perform secondary treatment on a current signal, and whether the current water level signal and the preset target water level are in an allowable error range or not is sequentially determined by taking the finally treated water level signal as a judgment basis; for heating action, whether the heating pipe works can be judged according to the acquisition of the current signal, meanwhile, the total heating time can be calculated, and under the condition that the set temperature is not reached, the heating pipe needs to continuously work until the temperature is reached, so that the heating time is compared with the preset heating time, whether the heating time is met is judged, meanwhile, the temperature signal can be monitored, and whether the preset target temperature is within an error range is also judged.
It should be noted that, under the condition that the water flow rapidly flows, the water flow is also caused by the upper area of the cavity of the drum washing machine, which is close to the water surface, of the vertical drum washing machine, and the temperature sensor is not completely immersed in the water body, so that deviation occurs in temperature detection, and the temperature is lower than the actually measured temperature.
As shown in fig. 2, 3, 4 and 5, the first temperature sensing assembly and the second temperature sensing assembly are electrically connected with the washing machine control board, the driving motor is electrically connected with the washing machine control board, the first temperature sensing assembly comprises a temperature sensor, the second temperature sensing assembly comprises a temperature sensor 1 and a water collector 2 sleeved on the surface of the temperature sensor, the water collector comprises a rotary cylinder 3, the rotary cylinder comprises an outer cylinder body 4 and an inner cylinder body 5, and a movable cylinder 6 is arranged between the outer cylinder body and the inner cylinder body.
The movable cylinder comprises a telescopic hopper 7 positioned at the top and a threaded cylinder body 8 positioned at the bottom of the telescopic hopper, a first gear 9 and a driving motor 10 are arranged outside the outer cylinder body, a second gear 11 is meshed on one side of the first gear, a second gear is arranged on an output shaft of the driving motor, and the driving motor is used for driving the second gear to rotate forwards or reversely.
The inner side wall of the outer cylinder body is at least partially in threaded fit with the outer side wall of the threaded cylinder body. The telescopic bucket comprises a plurality of guide plates 12 and an elastic membrane 13 for connecting two adjacent guide plates, the bottoms of the guide plates are hinged to the top of the threaded cylinder body through a hinged support 14, a torsion spring 15 is arranged on the hinged support, one end of the torsion spring is fixedly connected with the threaded cylinder body, the other end of the torsion spring is fixedly connected with the guide plates, and the torsion spring is used for providing elastic force for enabling the guide plates to extend outwards. The bottom of the outer cylinder body and the bottom of the inner cylinder body are provided with bottom plates 16, the bottoms of the threaded cylinder bodies are provided with extension rods 17, and the bottoms of the movable ends of the extension rods are provided with first pistons 18. The first piston is annular, and the threaded cylinder body rotates to rise or fall to drive the first piston to rotate and move upwards or downwards. The catheter is filled with hydraulic fluid.
The area under the first piston is connected to the area outside the second piston by a catheter 19. The area below the first piston and the area outside the second piston are provided with movable cavities 20 in the bottom plate, and the middle part of the bottom plate is provided with water outlets 21. The movable cavity is internally provided with a pair of second pistons 22 respectively positioned at two sides of the water blowing hole, the tops of the two groups of second pistons are respectively provided with a first rack 23, the bottom of the movable cavity is provided with a second rack 24, a third gear 25 meshed with the first rack and the second rack is arranged between the first rack and the second rack, the second rack is connected with a sealing plate 26, and the water outlet hole is closed or opened after the sealing plate moves. The first rack and the second rack are respectively positioned on the upper side and the lower side of the third gear.
When the embodiment is implemented, the washing machine control board controls the driving motor to rotate positively, the outer cylinder body is enabled to rotate through the engagement of the first gear and the second gear, the threaded cylinder body is driven to rotate and extend upwards, the telescopic hopper is pushed to extend, the torsion spring provides elastic force for enabling the guide plate to extend outwards, the telescopic hopper is unfolded to facilitate water collection, and the threaded cylinder body moves upwards to further drive the second piston to move towards one side far away from the water outlet hole, the second racks on two sides are enabled to move oppositely through the third gear, and finally the water outlet hole is sealed; at this time, the first temperature sensing assembly starts to collect water flow, so that the situation that the temperature sensor in the first temperature sensing assembly cannot be completely soaked in the water body is avoided, the temperature of the water flow contacting the temperature sensor can be accurately measured, the deviation of the part is compensated through a program, and the stability of temperature control is further guaranteed.
The washing machine control board controls the driving motor to rotate reversely, the outer cylinder body rotates through the engagement of the first gear and the second gear, the threaded cylinder body is driven to rotate and extend downwards, the telescopic bucket is pushed to retract into the rotating cylinder, the telescopic bucket is unfolded to reduce water collection, the threaded cylinder body moves downwards, the second piston is driven to move towards one side close to the water outlet, the second racks on the two sides are enabled to move reversely through the third gear, the water outlet is finally opened, and water collected in the rotating cylinder is discharged, so that the next use is facilitated.
Example 2
The invention also discloses an automatic testing device for the control panel of the washing machine, which comprises: the washing machine comprises a washing machine control board, a signal acquisition module, a washing execution module and an analysis and diagnosis module, wherein a preset washing execution flow is contained in the washing machine control board, and meanwhile, the current execution state and target data are transmitted to the analysis and diagnosis module; the signal acquisition module is used for acquiring all key information in the whole washing machine system, including signals such as water level signals, temperature signals, motor speed, water inlet valves, water discharge valves, heating pipes, door locks and the like, collecting and summarizing all the signals in real time, transmitting all the processed data to the analysis and diagnosis module, obtaining whether a final judgment result is normal or failed after data validity analysis, and then giving a correct target value prompt so as to facilitate fault analysis and judgment. The signal acquisition module comprises a first temperature sensing assembly and a second temperature sensing assembly.
The foregoing description is only of the preferred embodiments of the present invention, and is not intended to limit the scope of the invention, but rather is intended to cover all equivalent structures as modifications within the scope of the invention, either directly or indirectly, as may be contemplated by the present invention.
Claims (10)
1. An automatic test method for a control panel of a washing machine is characterized by comprising the following steps:
the method comprises the steps that a detected washing machine control board is arranged on a complete machine, and a plurality of pairs of first temperature sensing components and second temperature sensing components which are connected with the washing machine control board are arranged at the upper and lower positions of a washing cavity in the washing machine;
locking action detection procedure: after the machine is started through the measured and controlled board, the door is locked firstly, the signal detection module can detect the door lock signal at the same time, the final result is fed back to the diagnosis software in real time, the diagnosis software can compare with the preset result when the machine is started by the locking signal, and if the locking signal cannot be detected all the time, the locking recognition prompt can be recognized to report errors;
a heating operation detection step: according to the acquisition of the current signals, whether the heating pipe works is judged, meanwhile, the total heating time can be calculated, under the condition that the set temperature is not reached, the heating pipe needs to continuously work until the temperature is reached, and the heating time is compared with the preset heating time, so that whether the heating time is met is judged, meanwhile, whether the temperature signals and the preset target temperature are in an error range or not is monitored through the first temperature sensing assembly and the second temperature sensing assembly, and the deviation of water flow on temperature acquisition is estimated.
2. The automatic test method of control panel of washing machine as claimed in claim 1, characterized in that it further comprises a water inlet action detecting process, wherein the water inlet action detecting process comprises a step of the measured and controlled panel to perform water inlet operation at a certain stage according to a preset flow, which can be a time water inlet according to a certain set target water level, stopping water inlet when the set water level or water inlet time is reached, and performing the next action, the signal detecting module feeds back the water level signal detected in real time to the diagnosis software, the diagnosis software performs secondary treatment on the current signal, and sequentially determines whether the current water level signal is within an allowable error range with the preset target water level by taking the finally processed water level signal as a judging basis.
3. The automatic test method of control panel of washing machine as claimed in claim 1 or 2, wherein the first temperature sensing assembly comprises a temperature sensor, the second temperature sensing assembly comprises a temperature sensor and a water collector sleeved on the surface of the temperature sensor, the water collector comprises a rotary cylinder, the rotary cylinder comprises an outer cylinder body and an inner cylinder body, and a movable cylinder is arranged between the outer cylinder body and the inner cylinder body.
4. The automatic test method for the control plate of the washing machine according to claim 3, wherein the movable cylinder comprises a telescopic hopper arranged at the top and a threaded cylinder arranged at the bottom of the telescopic hopper, at least partial threads are matched between the inner side wall of the outer cylinder and the outer side wall of the threaded cylinder, a first gear and a driving motor are arranged outside the outer cylinder, a second gear is meshed on one side of the first gear, a second gear is arranged on an output shaft of the driving motor, the driving motor is used for driving the second gear to rotate forwards or reversely, the first temperature sensing assembly and the second temperature sensing assembly are electrically connected with the control plate of the washing machine, and the driving motor is electrically connected with the control plate of the washing machine.
5. The automatic test method of control panel of washing machine as claimed in claim 4, wherein the telescopic bucket comprises a plurality of guide plates and an elastic membrane connecting two adjacent guide plates, the bottom of the guide plates is hinged with the top of the threaded cylinder through a hinged support, a torsion spring is installed on the hinged support, one end of the torsion spring is fixedly connected with the threaded cylinder, the other end of the torsion spring is fixedly connected with the guide plates, and the torsion spring is used for providing elastic force for enabling the guide plates to extend outwards.
6. The automated testing method of a control panel of a washing machine as claimed in claim 5, wherein the bottoms of the outer cylinder and the inner cylinder are provided with bottom plates, the bottoms of the threaded cylinder are provided with extension rods, and the bottoms of the movable ends of the extension rods are provided with first pistons.
7. The automated washing machine control panel testing method of claim 6, wherein the area under the first piston is connected to the area outside the second piston by a catheter.
8. The automated testing method of control panel of washing machine as claimed in claim 7, wherein the movable chamber is provided in the bottom plate, and the water outlet is provided in the middle of the bottom plate.
9. The automatic test method of control panel of washing machine as claimed in claim 8, wherein a pair of second pistons are respectively arranged at two sides of the water blowing hole in the movable cavity, a first rack is arranged at the top of the second piston, a second rack is arranged at the bottom of the movable cavity, a third gear meshed with the first rack and the second rack is arranged between the first rack and the second rack, the second rack is connected with a sealing plate, and the water outlet hole is closed or opened after the sealing plate moves.
10. An automated testing device for a control panel of a washing machine, comprising: the washing machine comprises a washing machine control board, a signal acquisition module, a washing execution module and an analysis and diagnosis module, wherein a preset washing execution flow is contained in the washing machine control board, and meanwhile, the current execution state and target data are transmitted to the analysis and diagnosis module; the signal acquisition module is used for acquiring all key information in the whole washing machine system, the analysis and diagnosis module is used for analyzing and obtaining whether a final judging result is normal or failed, then giving a correct target value prompt, and facilitating fault analysis and judgment, and the signal acquisition module comprises a first temperature sensing assembly and a second temperature sensing assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310912272.8A CN116909248B (en) | 2023-07-25 | 2023-07-25 | Automatic testing method and device for control panel of washing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310912272.8A CN116909248B (en) | 2023-07-25 | 2023-07-25 | Automatic testing method and device for control panel of washing machine |
Publications (2)
| Publication Number | Publication Date |
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| CN116909248A true CN116909248A (en) | 2023-10-20 |
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