CN109191816B - Electrical appliance fault detection method and device, storage medium and terminal - Google Patents
Electrical appliance fault detection method and device, storage medium and terminal Download PDFInfo
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- CN109191816B CN109191816B CN201810956504.9A CN201810956504A CN109191816B CN 109191816 B CN109191816 B CN 109191816B CN 201810956504 A CN201810956504 A CN 201810956504A CN 109191816 B CN109191816 B CN 109191816B
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- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
- G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
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- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C25/00—Arrangements for preventing or correcting errors; Monitoring arrangements
Abstract
The invention provides a fault detection method and device of an electric appliance, a storage medium and the electric appliance, wherein the method comprises the following steps: the method comprises the following steps: sending a second fault detection request to the electric appliance in a wireless communication mode; receiving a fault code of a current fault and current operation data which are returned by the electric appliance in a wireless communication mode; and determining the fault reason and/or the fault component of the current fault of the electric appliance according to the received fault code and the operation data. The scheme provided by the invention can be used for carrying out fault detection, fault reason analysis and fault part positioning on the electric appliance under the condition of not disassembling the machine.
Description
Technical Field
The invention relates to the technical field of electric appliances, in particular to a fault detection method and device of an electric appliance, a storage medium and a terminal.
Background
The structures of electric appliances such as washing machines, air conditioners and the like are generally integrated, a circuit led out from the interior of the electric appliances does not have other circuits except a power line, so that during fault judgment, rough judgment is carried out by checking a displayed fault code, generally, the electric appliances cannot accurately correspond to a certain part, and great difficulty is brought to maintenance work.
Disclosure of Invention
The main purpose of the present invention is to overcome the defects of the prior art, and provide a method, an apparatus, a storage medium, and a terminal for detecting a fault of an electrical appliance, so as to solve the problem that a specific faulty component of the electrical appliance cannot be determined accurately by checking a fault code without disassembling the electrical appliance in the prior art.
The invention provides a fault detection method of an electric appliance, which comprises the following steps: sending a second fault detection request to the electric appliance in a wireless communication mode; receiving a fault code of a current fault and current operation data which are returned by the electric appliance in a wireless communication mode; and determining the fault reason and/or the fault component of the current fault of the electric appliance according to the received fault code and the operation data.
Optionally, before sending the second fault detection request to the electrical appliance by wireless communication, the method further includes: sending a wireless communication connection request to the appliance to request establishment of a wireless communication connection with the appliance; if request success information returned by the electric appliance is received, a first fault detection request is sent to the electric appliance, so that the electric appliance enters a fault detection state; and when receiving the reply information which is returned by the electric appliance and enters the fault detection state, sending a second fault detection request to the electric appliance in a wireless communication mode.
Optionally, the method further comprises: and displaying the determined fault reason and/or fault component of the current fault of the electric appliance.
Optionally, the method further comprises: if the fault component of the current fault of the electric appliance cannot be determined according to the fault code and the operation data, determining at least one component to be determined according to the fault code; and individually controlling the at least one component to be failed to determine a failed component of the at least one component to be failed, wherein the failed component is a component currently failed by the electric appliance.
Optionally, individually controlling the at least one component to be failed to determine a failed component currently failed in the electrical appliance from the at least one component to be failed comprises: sending a control instruction for turning on or turning off the at least one component to be failed to the electric appliance so as to control the electric appliance to independently turn on or turn off the at least one component to be failed; receiving corresponding operation data returned by the electric appliance after each component to be failed is independently started or closed; and determining a fault component of the current fault of the electric appliance from the at least one component to be determined according to the received corresponding operation data.
Optionally, the method further comprises: if the electric appliance does not detect the fault currently, sending a third fault detection request to the electric appliance in a wireless communication mode so that the electric appliance enters a fault test mode to carry out fault test in the operation process; receiving test data for carrying out the fault test and operation data of the electric appliance, which are fed back by the electric appliance in a wireless communication mode; judging whether the electrical appliance is abnormal or not according to the received test data and the received operation data; and if the electrical appliance is judged to be abnormal, displaying the abnormal state and/or the abnormal reason of the abnormality.
Optionally, the wireless communication mode includes: one of wifi, bluetooth, ZigBee and GPRS; and/or, the appliance, comprising: at least one of a washing machine, an air conditioner, a refrigerator, and a television.
Another aspect of the present invention provides a fault detection apparatus for an electrical appliance, including: the second request unit is used for sending a second fault detection request to the electric appliance in a wireless communication mode; the first receiving unit is used for receiving a fault code of a current fault and current operation data, which are returned by the electric appliance in a wireless communication mode; and the first determining unit is used for determining the fault reason and/or the fault component of the current fault of the electric appliance according to the received fault code and the operation data.
Optionally, the method further comprises: the communication connection unit is used for sending a wireless communication connection request to the electric appliance so as to request to establish wireless communication connection with the electric appliance; the information receiving unit is used for receiving request success information returned by the electric appliance; the first request unit is used for sending a first fault detection request to the electric appliance if the information receiving unit receives request success information returned by the electric appliance, so that the electric appliance enters a fault detection state; the information receiving unit is further configured to: receiving reply information which is returned by the electric appliance and enters a fault detection state; and when the information receiving unit receives reply information which is returned by the electric appliance and enters the fault detection state, the second request unit sends a second fault detection request to the electric appliance in a wireless communication mode.
Optionally, the method further comprises: and the first display unit is used for displaying the determined fault reason and/or fault component of the current fault of the electric appliance.
Optionally, the first determining unit is further configured to: if the fault component of the current fault of the electric appliance cannot be determined according to the fault code and the operation data, determining at least one component to be determined according to the fault code; and individually controlling the at least one component to be failed to determine a failed component of the at least one component to be failed, wherein the failed component is a component currently failed by the electric appliance.
Optionally, the first determining unit separately controls the at least one component to be failed to determine a failed component, which is currently failed by the electrical appliance, from the at least one component to be failed, and includes: sending a control instruction for turning on or turning off the at least one component to be failed to the electric appliance so as to control the electric appliance to independently turn on or turn off the at least one component to be failed; receiving corresponding operation data returned by the electric appliance after each component to be failed is independently started or closed; and determining a fault component of the current fault of the electric appliance from the at least one component to be determined according to the received corresponding operation data.
Optionally, the method further comprises: the third request unit is used for sending a third fault detection request to the electric appliance in a wireless communication mode if the electric appliance does not detect a fault currently, so that the electric appliance enters a fault test mode to perform fault test in the running process; the second receiving unit is used for receiving the test data for carrying out the fault test and the operation data of the electric appliance, which are fed back by the electric appliance in a wireless communication mode; the abnormality judgment unit is used for judging whether the electrical appliance is abnormal or not according to the test data and the operation data received by the second receiving unit; and the second display unit is used for displaying the abnormal state and/or the abnormal reason of the abnormality if the abnormality judgment unit judges that the electric appliance is abnormal.
Optionally, the wireless communication mode includes: one of wifi, bluetooth, ZigBee and GPRS; and/or, the appliance, comprising: at least one of a washing machine, an air conditioner, a refrigerator, and a television.
A further aspect of the invention provides a storage medium having stored thereon a computer program which, when executed by a processor, carries out the steps of any of the methods described above.
A further aspect of the invention provides a terminal comprising a processor, a memory, and a computer program stored on the memory and executable on the processor, the processor implementing the steps of any of the methods described above when executing the program.
In another aspect, the invention provides a terminal including the fault detection device of any one of the above-mentioned electric appliances.
According to the technical scheme of the invention, the fault detection request is sent to the electric appliance in a wireless communication mode, the fault reason and/or the fault component of the current fault of the electric appliance is determined according to the received fault code and the current operation data of the current fault of the electric appliance returned in the wireless communication mode, and the fault detection, the fault reason analysis and the fault component positioning can be carried out on the electric appliance under the condition of not disassembling the electric appliance, so that the fault reason of the electric appliance can be quickly found and timely solved in the product development, production test or after-sale maintenance process.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 is a method diagram of one embodiment of a method for fault detection of an appliance provided by the present invention;
FIG. 2 is a communication diagram of a fault detection terminal in communication with a washing machine, for example;
FIG. 3a is a timing diagram of a fault detection terminal establishing a wireless communication connection with the appliance according to an embodiment of the present invention;
FIG. 3b is a timing diagram of the fault detection terminal sending a first fault detection request to the appliance according to an embodiment of the present invention;
fig. 3c is a timing diagram of the fault detection terminal sending a second fault detection request to the appliance according to an embodiment of the present invention;
FIG. 3d is a timing diagram illustrating the failure detection terminal sending a third failure detection request to the electrical appliance and receiving test data replied by the electrical appliance;
FIG. 4 is a method schematic diagram of another embodiment of a fault detection method of an appliance provided by the present invention;
FIG. 5 is a method diagram of yet another embodiment of a method of fault detection of an appliance provided by the present invention;
FIG. 6 is a method diagram of one embodiment of a method for fault detection of an appliance provided by the present invention;
FIG. 7 is a schematic structural diagram of an embodiment of a fault detection device for an electrical appliance provided by the present invention;
FIG. 8 is a schematic structural diagram of another embodiment of a fault detection device of an electrical appliance provided in the present invention;
FIG. 9 is a schematic structural diagram of a fault detection device of an electrical appliance according to another embodiment of the present invention;
fig. 10 is a schematic structural diagram of a fault detection device of an electrical appliance according to still another embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the specific embodiments of the present invention and the accompanying drawings. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
The invention provides a fault detection method of an electric appliance. The electrical appliance may specifically comprise at least one of a washing machine, an air conditioner, a refrigerator, a television. The invention can be used in fault detection terminals (e.g. mobile terminals) or in fault detection devices.
Fig. 1 is a method schematic diagram of an embodiment of a fault detection method of an electrical appliance provided by the present invention. As shown in fig. 1, according to an embodiment of the present invention, the appliance failure detection method includes at least step S110, step S120, and step S130.
And step S110, sending a second fault detection request to the electric appliance in a wireless communication mode.
The wireless communication mode can be one of wifi, bluetooth, ZigBee and GPRS, for example. Specifically, the fault detection terminal or the fault detection device establishes a wireless communication connection with the wireless communication module of the electrical appliance, so that the wireless communication module of the electrical appliance communicates with the main control board of the electrical appliance, and a second fault detection request is sent to the main control board of the electrical appliance in a wireless communication mode, so that the main control board of the electrical appliance responds to the fault detection request and returns a fault code of a currently occurring fault. For example, fig. 2 is a communication diagram of a fault detection terminal, such as a washing machine, in communication with the washing machine. As shown in FIG. 2, the fault detection terminal is communicated with the wifi module of the washing machine in a wifi communication mode, and the wifi module of the washing machine is communicated with the washing machine through a serial port.
Specifically, before sending a second fault detection request to the electric appliance in a wireless communication mode, detecting whether wireless communication between the electric appliance and the electric appliance is abnormal, and sending a wireless communication connection request to the electric appliance to request to establish wireless communication connection with the electric appliance; if request success information returned by the electric appliance is received, a first fault detection request is sent to the electric appliance, so that the electric appliance enters a fault detection state; and when receiving the reply information which is returned by the electric appliance and enters the fault detection state, sending a second fault detection request to the electric appliance in a wireless communication mode, so that the electric appliance responds to the second fault detection request and returns a fault code of the current fault.
More specifically, a wireless communication connection request is sent to the wireless communication module of the electric appliance, and if the request success information returned by the wireless communication module is received, transmitting a first fault detection request to a wireless communication module of the appliance, after receiving the first fault detection request, the wireless communication module forwarding the first fault detection request to a main control board of the appliance, the main control board of the electric appliance enters a fault detection state after receiving the first fault detection request, and returns the reply information which has entered the fault detection state, and after receiving the reply information returned by the main board of the electric appliance, sends the second fault detection request to the wireless communication module of the electric appliance, and after receiving the second fault detection request, the wireless communication module of the electric appliance forwards the second fault detection request to a main control board of the electric appliance.
Fig. 3a, 3b, 3c and 3d are timing diagrams of the fault detection terminal and the electric appliance detecting a fault of the electric appliance through wireless communication.
Fig. 3a is a timing diagram of a fault detection terminal establishing a wireless communication connection with the appliance according to an embodiment of the invention. As shown in fig. 3a, the fault detection terminal sends a 0x41 request connection data packet to the wifi module of the washing machine, the wifi connection is requested to be established, after the washing machine wifi module receives the request, the request success flag is replied, the fault detection terminal is successfully connected with the washing machine wifi module at the moment, if the wifi module does not receive the request connection data packet, the request connection data packet cannot be replied, and the fault detection terminal can display that the wifi connection is unsuccessful at the moment, and then the next operation is not executed.
Fig. 3b is a timing diagram of the fault detection terminal transmitting the first fault detection request to the appliance according to the embodiment of the present invention. As shown in fig. 3b, after the fault detection terminal is successfully connected with the wifi module of the washing machine, a 0x42 fault detection request data packet is sent to the wifi module, after the wifi module receives the fault detection request data packet, the 0x42 fault detection request data packet is forwarded to the main control board of the washing machine, after the main control board receives the request data packet, the main control board replies that the fault detection state is entered, if the main control board does not receive the data packet forwarded by the wifi module, the fault detection terminal does not receive the reply of the main control board of the washing machine, the disconnection between the main control board and the wifi module is displayed, and the communication between the main control board and the wifi module is abnormal.
Fig. 3c is a communication timing diagram of the fault code of the currently occurring fault returned by the appliance to the fault detection terminal according to the embodiment of the present invention, in which the fault detection terminal sends the second fault detection request to the appliance. As shown in fig. 3c, after receiving the reply information of entering the fault detection state replied by the main control board of the washing machine, the fault detection terminal sends a 0x42 fault detection request data packet, the fault query is valid in the fault detection state, and the wifi module of the washing machine forwards the 0x42 fault detection request data packet to the main control board.
And step S120, receiving the fault code of the current fault and the current operation data which are returned by the electric appliance in a wireless communication mode.
Specifically, the wireless communication module of the electrical appliance forwards the fault detection request to the main control board of the electrical appliance, and after receiving the fault detection request, the main control board of the electrical appliance returns a fault code of a currently occurring fault and current operation data of the electrical appliance through the wireless communication module.
As shown in fig. 3c, after the wifi module of the washing machine forwards the 0x42 fault detection request data packet to the main control board, the main control board replies the current complete machine fault code, and the current complete machine fault code includes current detection data of each sensor, bus voltage, driving current, and the like.
Step S130, determining the fault reason and/or the fault component of the current fault of the electric appliance according to the received fault code and the operation data.
And analyzing and judging according to the fault code of the current fault returned by the main control board of the electric appliance and the operation data of the electric appliance, and determining a fault reason and/or a fault component.
Further, if the fault component of the current fault of the electric appliance cannot be determined according to the fault code and the operation data, determining at least one component to be determined according to the fault code; and individually controlling the at least one component to be failed to determine a failed component of the at least one component to be failed, wherein the failed component is a component currently failed by the electric appliance. For example, a corresponding failure name is determined according to a failure code of a current failure, a plurality of components which may have problems are deduced according to the failure name, at this time, which component has problems cannot be determined, the plurality of components which may have problems are individually controlled, and thus, the plurality of components are checked one by one, and finally, a failure point is confirmed.
Specifically, after at least one component to be failed is determined according to the fault code, a control instruction for starting or closing the at least one component to be failed is sent to the electric appliance so as to control the electric appliance to independently start or close the at least one component to be failed; receiving corresponding operation data returned by the electric appliance after each component to be failed is independently started or closed; and determining a fault component of the current fault of the electric appliance from the at least one component to be determined according to the received corresponding operation data.
For example, the electric appliance is a washing machine, if the current fault is an overflow fault, the fault causes include three types, namely an abnormal water inlet valve, an abnormal water level sensor and an abnormal logic control. Firstly, sending an instruction to a main control board of the washing machine through communication with a wifi module of the washing machine, checking whether a water inlet valve is in an open state, if the water inlet valve is in an open state, indicating that logic control is abnormal, and not closing the water inlet valve under the condition of overflow fault; if the water inlet valve is closed, checking whether water enters the whole machine, and if the water enters the whole machine continuously, indicating that the water inlet valve is abnormal and is not controlled by a program; if the whole machine has no water inlet, the water inlet valve is normal, then an instruction is sent to a main control board of the washing machine through the wifi module communication with the washing machine, whether the water level sensor is abnormal is detected, specifically, an instruction for starting the drainage pump is sent to the main control board, the drainage pump is started, the water level parameter during the starting period of the drainage pump returned by the main control board is received, whether the water level parameter is changed is checked, if the water level parameter is changed normally, the water level sensor is normal, if the water level sensor is not changed or changed abnormally, the water level sensor is failed, and the detected water level is inaccurate.
Fig. 4 is a method schematic diagram of another embodiment of the fault detection method of the electrical appliance provided by the invention. As shown in fig. 4, according to another embodiment of the present invention, the appliance fault detection method further includes step S140.
And step S140, displaying the determined fault reason and/or fault component of the current fault of the electric appliance.
For example, the determined fault cause and/or the determined fault component of the current fault of the electrical appliance is displayed on a display screen of a terminal or a fault detection device.
Fig. 5 is a method schematic diagram of a fault detection method of an electrical appliance according to another embodiment of the present invention. As shown in fig. 5, according to still another embodiment of the present invention, the appliance failure detection method further includes step S150, step S160, step S170, and step S180.
And S150, if the electric appliance does not detect the fault currently, sending a third fault detection request to the electric appliance in a wireless communication mode so that the electric appliance enters a fault test mode to carry out fault test in the operation process.
Specifically, if the main control board does not report a fault at present, but the whole machine is completely normal without representing, a test mode is performed to check whether the whole machine is abnormal, that is, a third fault detection request is sent to the wireless communication module of the electrical appliance, and the wireless communication module of the electrical appliance forwards the third fault detection request to the main control board of the electrical appliance.
And step S160, receiving the test data for the fault test and the operation data of the electric appliance, which are fed back by the electric appliance in a wireless communication mode.
And after receiving the third fault detection request forwarded by the wireless communication module, the main control board of the electric appliance starts to enter a test mode, and replies fault test data in the operation process and operation data of the electric appliance.
Fig. 3d is a timing chart of the fault detection terminal sending a third fault detection request to the electrical appliance and receiving test data replied by the electrical appliance. As shown in fig. 3d, if the main control board does not report a fault currently, the fault detection terminal then sends a 0x42 fault detection request data packet, the test mode is valid in the fault detection state, and after the washing machine wifi module forwards the request data packet to the main control board, the main control board starts to enter the fault test mode and replies the test data and various operating data in the operating process.
Step S170, judging whether the electrical appliance is abnormal or not according to the received test data and the operation data.
Specifically, after the test data and the operation data are received, whether the electrical appliance is abnormal or not is judged by analyzing various data in the operation process. For example, when the washing machine is operated at a high speed, the bus voltage may be too high or the power may be too high, and although the fault condition is not yet met, it is necessary to analyze why the fault occurs, whether the fault is caused by an excessive load or an excessive eccentricity, or the like, or whether the motor control is abnormal, and the like, so as to remind a developer or a tester to adjust the fault in time.
And step S180, if the electrical appliance is judged to be abnormal, displaying the abnormal state and/or the abnormal reason of the abnormality.
In order to clearly illustrate the technical solution of the present invention, an implementation flow of the fault detection method for an electrical appliance provided by the present invention is described below with a specific embodiment.
Fig. 6 is a method schematic diagram of an embodiment of a fault detection method for an electrical appliance provided by the present invention.
As shown in fig. 6, the fault detection terminal sends a request connection data packet requesting connection with the wif module of the washing machine, the wifi module receives the request and replies a request success flag, at this time, the fault detection terminal is successfully connected with the wifi module of the washing machine, if the wifi module does not receive the request connection data packet, the fault detection terminal cannot reply, at this time, the fault detection terminal can display that wifi is currently unavailable, the next operation is not executed, and the flow is ended.
After the fault detection terminal is successfully connected with the wifi module of the washing machine, a fault detection request data packet is sent to the wifi module, the wifi module receives the fault detection request data packet and forwards the fault detection request data packet to the main control board of the washing machine, the main control board and the wifi module are communicated normally, and after the fault detection request data packet is received, the fault detection state is replied, if the main control board does not receive the data packet forwarded by the wifi module, the fault detection terminal cannot reply the data packet forwarded by the wifi module, the main control board is disconnected from the wifi module, the fault detection terminal cannot receive the reply of the main control board of the washing machine, and the fault detection terminal displays that the main control board and the wifi module.
After receiving the reply information of entering a fault detection state replied by the main control board of the washing machine, the fault detection terminal sends a fault detection request data packet to inquire the current fault, the wifi module of the washing machine forwards the current fault to the main control board, the main control board inquires whether the current fault exists or not and replies the current complete machine fault code, and meanwhile, the fault detection terminal comprises the current detection data of each sensor, bus voltage, driving current and the like, determines the fault reason and/or fault parts, if the fault parts can be positioned, the fault detection terminal displays the fault reason and the fault parts and finishes the process, if the fault parts cannot be positioned, the fault detection terminal sends an instruction to the main control board to independently control the possible fault parts, and after receiving the instruction, the main control board executes corresponding operation and returns corresponding data.
If the main control board does not report faults currently, the fault detection terminal sends a request data packet to enter a test mode, and after the wifi module of the washing machine forwards the request data packet to the main control board, the main control board starts to enter the fault test mode and feeds back test data and various operation data in the operation process; and after the fault detection terminal receives the test data and the operation data, judging whether the washing machine is abnormal or not by analyzing various data in the operation process, if so, giving an abnormal conclusion, and if not, ending the process.
The invention also provides a fault detection device of the electric appliance. The electrical appliance may specifically comprise at least one of a washing machine, an air conditioner, a refrigerator, a television. The invention can be used in fault detection terminals (e.g. mobile terminals) or in fault detection devices.
Fig. 7 is a schematic structural diagram of an embodiment of a fault detection device of an electrical appliance provided by the present invention. As shown in fig. 7, the fault detection apparatus 100 of the electric appliance includes: a second requesting unit 110, a first receiving unit 120, a first determining unit 130.
The second request unit 110 is configured to send a second fault detection request to the electrical appliance through wireless communication; the first receiving unit 120 is configured to receive a fault code of a current fault and current operating data, which are returned by the electrical appliance in a wireless communication manner; the first determining unit 130 is configured to determine a fault cause and/or a fault component of a current fault of the electrical appliance according to the received fault code and the operation data.
The second request unit 110 transmits a second fault detection request to the appliance through a wireless communication manner. The wireless communication mode can be one of wifi, bluetooth, ZigBee and GPRS, for example. Specifically, the fault detection terminal or the fault detection device establishes a wireless communication connection with the wireless communication module of the electrical appliance, so that the wireless communication module of the electrical appliance communicates with the main control board of the electrical appliance, and a second fault detection request is sent to the main control board of the electrical appliance in a wireless communication mode, so that the main control board of the electrical appliance responds to the fault detection request and returns a fault code of a currently occurring fault. For example, fig. 2 is a communication diagram of a fault detection terminal, such as a washing machine, in communication with the washing machine. As shown in FIG. 2, the fault detection terminal is communicated with the wifi module of the washing machine in a wifi communication mode, and the wifi module of the washing machine is communicated with the washing machine through a serial port.
Fig. 8 is a schematic structural diagram of another embodiment of the fault detection device of the electrical appliance provided by the invention. As shown in fig. 8, the failure detection apparatus 100 may further include a communication connection unit 102, an information receiving unit 104, and a first request unit 106. The communication connection unit 102 is configured to send a wireless communication connection request to the electrical appliance to request to establish a wireless communication connection with the electrical appliance; the information receiving unit 104 is configured to receive request success information returned by the electrical appliance; the first request unit 106 is configured to send a first fault detection request to the electrical appliance if the information receiving unit receives a request success message returned by the electrical appliance, so that the electrical appliance enters a fault detection state; the information receiving unit 104 is further configured to: receiving reply information which is returned by the electric appliance and enters a fault detection state; when the information receiving unit 104 receives reply information that the electrical appliance has entered the fault detection state, the second requesting unit 110 sends a second fault detection request to the electrical appliance in a wireless communication manner.
More specifically, the communication connection unit sends a wireless communication connection request to a wireless communication module of the electrical appliance, the information receiving unit receives request success information returned by the wireless communication module of the electrical appliance, if the request success information returned by the wireless communication module is received, the first request unit sends a first fault detection request to the wireless communication module of the electrical appliance, the wireless communication module forwards the first fault detection request to a main control board of the electrical appliance after receiving the first fault detection request, the main control board of the electrical appliance enters a fault detection state after receiving the first fault detection request and returns reply information which has entered the fault detection state, the information receiving unit sends the second fault detection request to the wireless communication module of the electrical appliance after receiving the reply information returned by the main control board of the electrical appliance, and after receiving the second fault detection request, the wireless communication module of the electric appliance forwards the second fault detection request to a main control board of the electric appliance.
Fig. 3a, 3b, 3c and 3d are communication timing diagrams of the fault detection terminal and the electric appliance detecting a fault of the electric appliance through wireless communication.
Fig. 3a is a timing diagram of a fault detection terminal establishing a wireless communication connection with the appliance according to an embodiment of the invention. As shown in fig. 3a, the fault detection terminal sends a 0x41 request connection data packet to the wifi module of the washing machine, the wifi connection is requested to be established, after the washing machine wifi module receives the request, the request success flag is replied, the fault detection terminal is successfully connected with the washing machine wifi module at the moment, if the wifi module does not receive the request connection data packet, the request connection data packet cannot be replied, and the fault detection terminal can display that the wifi connection is unsuccessful at the moment, and then the next operation is not executed.
Fig. 3b is a timing diagram of the fault detection terminal transmitting the first fault detection request to the appliance according to the embodiment of the present invention. As shown in fig. 3b, after the fault detection terminal is successfully connected with the wifi module of the washing machine, a 0x42 fault detection request data packet is sent to the wifi module, after the wifi module receives the fault detection request data packet, the 0x42 fault detection request data packet is forwarded to the main control board of the washing machine, after the main control board receives the request data packet, the main control board replies that the fault detection state is entered, if the main control board does not receive the data packet forwarded by the wifi module, the fault detection terminal does not receive the reply of the main control board of the washing machine, the disconnection between the main control board and the wifi module is displayed, and the communication between the main control board and the wifi module is abnormal.
Fig. 3c is a timing diagram of the fault detection terminal sending a second fault detection request to the appliance, and the appliance returning a fault code of a currently occurring fault to the fault detection terminal according to the embodiment of the present invention. As shown in fig. 3c, after receiving the reply information of entering the fault detection state replied by the main control board of the washing machine, the fault detection terminal sends a 0x42 fault detection request data packet, the fault query is valid in the fault detection state, and the wifi module of the washing machine forwards the 0x42 fault detection request data packet to the main control board.
After the second request unit 110 sends the second fault detection request to the electrical appliance through the wireless communication mode, the first receiving unit 120 receives the fault code of the current fault and the current operation data, which are returned by the electrical appliance through the wireless communication mode.
Specifically, the wireless communication module of the electrical appliance forwards the fault detection request to the main control board of the electrical appliance, after the main control board of the electrical appliance receives the fault detection request, the wireless communication module returns a fault code of a currently occurring fault and current operation data of the electrical appliance, and the first receiving unit 120 receives the fault code of the currently occurring fault and the current operation data, which are returned by the electrical appliance in a wireless communication manner.
As shown in fig. 3c, after the wifi module of the washing machine forwards the 0x42 fault detection request data packet to the main control board, the main control board replies the current complete machine fault code, and the current complete machine fault code includes current detection data of each sensor, bus voltage, driving current, and the like.
The first determination unit 130 determines a fault cause and/or a faulty component of a fault currently occurring in the appliance according to the received fault code and the operation data. Specifically, the fault reason and/or the fault component are determined by analyzing and judging the fault code of the current fault returned by the main control board of the electric appliance and the operation data of the electric appliance.
Further, if the faulty component of the current fault of the electrical appliance cannot be determined according to the fault code and the operation data, the first determining unit 130 determines at least one component to be determined according to the fault code; and individually controlling the at least one component to be failed to determine a failed component of the at least one component to be failed, wherein the failed component is a component currently failed by the electric appliance. For example, a corresponding failure name is determined according to a failure code of a current failure, a plurality of components which may have problems are deduced according to the failure name, at this time, which component has problems cannot be determined, the plurality of components which may have problems are individually controlled, and thus, the plurality of components are checked one by one, and finally, a failure point is confirmed.
Specifically, after at least one component to be failed is determined according to the fault code, a control instruction for starting or closing the at least one component to be failed is sent to the electric appliance so as to control the electric appliance to independently start or close the at least one component to be failed; receiving corresponding operation data returned by the electric appliance after each component to be failed is independently started or closed; and determining a fault component of the current fault of the electric appliance from the at least one component to be determined according to the received corresponding operation data.
For example, the electric appliance is a washing machine, if the current fault is an overflow fault, the fault causes include three types, namely an abnormal water inlet valve, an abnormal water level sensor and an abnormal logic control. Firstly, sending an instruction to a main control board of the washing machine through communication with a wifi module of the washing machine, checking whether a water inlet valve is in an open state, if the water inlet valve is in an open state, indicating that logic control is abnormal, and not closing the water inlet valve under the condition of overflow fault; if the water inlet valve is closed, checking whether water enters the whole machine, and if the water enters the whole machine continuously, indicating that the water inlet valve is abnormal and is not controlled by a program; if the whole machine has no water inlet, the water inlet valve is normal, then an instruction is sent to a main control board of the washing machine through the wifi module communication with the washing machine, whether the water level sensor is abnormal is detected, specifically, an instruction for starting the drainage pump is sent to the main control board, the drainage pump is started, the water level parameter during the starting period of the drainage pump returned by the main control board is received, whether the water level parameter is changed is checked, if the water level parameter is changed normally, the water level sensor is normal, if the water level sensor is not changed or changed abnormally, the water level sensor is failed, and the detected water level is inaccurate.
Fig. 9 is a schematic structural diagram of a fault detection device of an electrical appliance according to another embodiment of the present invention. As shown in fig. 9, the fault detection apparatus 100 of the electric appliance further includes a first display unit 140.
The first display unit 140 is used for displaying the determined fault reason and/or the determined fault component of the current fault of the electrical appliance. For example, the determined fault cause and/or the determined fault component of the current fault of the electrical appliance is displayed on a display screen of a terminal or a fault detection device.
Fig. 10 is a schematic structural diagram of a fault detection device of an electrical appliance according to still another embodiment of the present invention. As shown in fig. 10, according to any of the above embodiments, the fault detection apparatus 100 for an electrical appliance further includes a third request unit 150, a second receiving unit 160, an abnormality determination unit 170, and a second display unit 180.
The third request unit 150 is configured to send a third fault detection request to the electrical appliance in a wireless communication manner if the electrical appliance does not detect a fault currently, so that the electrical appliance enters a fault test mode to perform a fault test in an operation process; the second receiving unit 160 is configured to receive test data for performing the fault test and operation data of the electrical appliance, which are fed back by the electrical appliance in a wireless communication manner; the abnormality judgment unit 170 is configured to judge whether the electrical appliance is abnormal according to the test data and the operation data received by the second receiving unit; the second display unit 180 is configured to display an abnormal state and/or an abnormal reason of the abnormality if the abnormality determination unit determines that the electrical appliance is abnormal.
Specifically, if the main control board does not report a fault at present, but the whole machine is completely normal without representing, a test mode is performed to check whether the whole machine is abnormal or not. The third request unit 150 sends a third fault detection request to the wireless communication module of the electrical appliance, and the wireless communication module of the electrical appliance forwards the third fault detection request to the main control board of the electrical appliance. And after receiving the third fault detection request forwarded by the wireless communication module, the main control board of the electric appliance starts to enter a test mode, and replies fault test data in the operation process and operation data of the electric appliance.
Fig. 3d is a timing chart of the fault detection terminal sending a third fault detection request to the electrical appliance and receiving test data replied by the electrical appliance. As shown in fig. 3d, if the main control board does not report a fault currently, the fault detection terminal then sends a 0x42 fault detection request data packet, the test mode is valid in the fault detection state, and after the washing machine wifi module forwards the request data packet to the main control board, the main control board starts to enter the fault test mode and replies the test data and various operating data in the operating process.
After the second receiving unit 160 receives the test data and the operation data, the abnormality determining unit 170 determines whether the electrical appliance is abnormal by analyzing the received data in the operation process. For example, when the washing machine is operated at a high speed, the bus voltage may be too high or the power may be too high, and although the fault condition is not yet met, it is necessary to analyze why the fault occurs, whether the fault is caused by an excessive load or an excessive eccentricity, or the like, or whether the motor control is abnormal, and the like, so as to remind a developer or a tester to adjust the fault in time. If the abnormality determination unit 170 determines that the electrical appliance is abnormal, the second display unit 180 displays an abnormal state and/or an abnormal reason of the abnormality.
The invention also provides a storage medium corresponding to the fault detection method of the electric appliance, and a computer program is stored on the storage medium, and when the computer program is executed by a processor, the computer program realizes the steps of any one of the methods.
The invention also provides a terminal corresponding to the fault detection method of the electric appliance, which comprises a processor, a memory and a computer program which is stored on the memory and can run on the processor, wherein the processor realizes the steps of any one of the methods when executing the program.
The invention also provides a terminal corresponding to the fault detection device of the electric appliance, which comprises the fault detection device of any one of the electric appliances.
Therefore, according to the scheme provided by the invention, the fault detection request is sent to the electric appliance in a wireless communication mode, the fault reason and/or the fault component of the current fault of the electric appliance is determined according to the received fault code and the current operation data of the current fault of the electric appliance returned by the wireless communication mode, and the fault detection, the fault reason analysis and the fault component positioning can be carried out on the electric appliance under the condition of not disassembling the electric appliance, so that the fault reason of the electric appliance can be quickly found and timely solved in the product development, production test or after-sale maintenance process.
The functions described herein may be implemented in hardware, software executed by a processor, firmware, or any combination thereof. If implemented in software executed by a processor, the functions may be stored on or transmitted over as one or more instructions or code on a computer-readable medium. Other examples and implementations are within the scope and spirit of the invention and the following claims. For example, due to the nature of software, the functions described above may be implemented using software executed by a processor, hardware, firmware, hardwired, or a combination of any of these. In addition, each functional unit may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.
In the embodiments provided in the present application, it should be understood that the disclosed technology can be implemented in other ways. The above-described embodiments of the apparatus are merely illustrative, and for example, the division of the units may be a logical division, and in actual implementation, there may be another division, for example, multiple units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, units or modules, and may be in an electrical or other form.
The units described as separate parts may or may not be physically separate, and the parts serving as the control device may or may not be physical units, may be located in one place, or may be distributed on a plurality of units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a removable hard disk, a magnetic or optical disk, and other various media capable of storing program codes.
The above description is only an example of the present invention, and is not intended to limit the present invention, and it is obvious to those skilled in the art that various modifications and variations can be made in the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.
Claims (13)
1. A method of fault detection for an electrical appliance, comprising:
sending a second fault detection request to the electric appliance in a wireless communication mode;
receiving a fault code of a current fault and current operation data which are returned by the electric appliance in a wireless communication mode;
determining a fault reason and/or a fault component of the current fault of the electric appliance according to the received fault code and the operation data;
before sending a second fault detection request to the electrical appliance in a wireless communication mode, the method further comprises the following steps:
sending a wireless communication connection request to the appliance to request establishment of a wireless communication connection with the appliance;
if request success information returned by the electric appliance is received, a first fault detection request is sent to the electric appliance, so that the electric appliance enters a fault detection state;
when reply information which is returned by the electric appliance and enters a fault detection state is received, a second fault detection request is sent to the electric appliance in a wireless communication mode;
if the fault component of the current fault of the electric appliance cannot be determined according to the fault code and the operation data, determining at least one component to be determined according to the fault code;
and individually controlling the at least one component to be failed to determine a failed component of the at least one component to be failed, wherein the failed component is a component currently failed by the electric appliance.
2. The method of claim 1, further comprising:
and displaying the determined fault reason and/or fault component of the current fault of the electric appliance.
3. The method of claim 1, wherein individually controlling the at least one component to be failed to determine a failed component of the at least one component to be failed that is currently failed by the appliance comprises:
sending a control instruction for turning on or turning off the at least one component to be failed to the electric appliance so as to control the electric appliance to independently turn on or turn off the at least one component to be failed;
receiving corresponding operation data returned by the electric appliance after each component to be failed is independently started or closed;
and determining a fault component of the current fault of the electric appliance from the at least one component to be determined according to the received corresponding operation data.
4. The method of claim 1, further comprising:
if the electric appliance does not detect the fault currently, sending a third fault detection request to the electric appliance in a wireless communication mode so that the electric appliance enters a fault test mode to carry out fault test in the operation process;
receiving test data for carrying out the fault test and operation data of the electric appliance, which are fed back by the electric appliance in a wireless communication mode;
judging whether the electrical appliance is abnormal or not according to the received test data and the received operation data;
and if the electrical appliance is judged to be abnormal, displaying the abnormal state and/or the abnormal reason of the abnormality.
5. The method of claim 1,
the wireless communication method comprises the following steps: at least one of wifi, bluetooth, ZigBee, and GPRS;
and/or the presence of a gas in the gas,
the electrical appliance, comprising: at least one of a washing machine, an air conditioner, a refrigerator, and a television.
6. A fault detection device for an electrical appliance, comprising:
the second request unit is used for sending a second fault detection request to the electric appliance in a wireless communication mode;
the first receiving unit is used for receiving a fault code of a current fault and current operation data, which are returned by the electric appliance in a wireless communication mode;
the first determining unit is used for determining a fault reason and/or a fault component of a current fault of the electric appliance according to the received fault code and the operation data;
the communication connection unit is used for sending a wireless communication connection request to the electric appliance so as to request to establish wireless communication connection with the electric appliance;
the information receiving unit is used for receiving request success information returned by the electric appliance;
the first request unit is used for sending a first fault detection request to the electric appliance if the information receiving unit receives request success information returned by the electric appliance, so that the electric appliance enters a fault detection state;
the information receiving unit is further configured to: receiving reply information which is returned by the electric appliance and enters a fault detection state;
when the information receiving unit receives reply information which is returned by the electric appliance and enters a fault detection state, the second request unit sends a second fault detection request to the electric appliance in a wireless communication mode;
the first determining unit is further configured to:
if the fault component of the current fault of the electric appliance cannot be determined according to the fault code and the operation data, determining at least one component to be determined according to the fault code;
and individually controlling the at least one component to be failed to determine a failed component of the at least one component to be failed, wherein the failed component is a component currently failed by the electric appliance.
7. The apparatus of claim 6, further comprising:
and the first display unit is used for displaying the determined fault reason and/or fault component of the current fault of the electric appliance.
8. The apparatus according to claim 6, wherein the first determining unit individually controls the at least one component to be failed to determine a failed component currently occurring in the appliance from among the at least one component to be failed, comprising:
sending a control instruction for turning on or turning off the at least one component to be failed to the electric appliance so as to control the electric appliance to independently turn on or turn off the at least one component to be failed;
receiving corresponding operation data returned by the electric appliance after each component to be failed is independently started or closed;
and determining a fault component of the current fault of the electric appliance from the at least one component to be determined according to the received corresponding operation data.
9. The apparatus of claim 6, further comprising:
the third request unit is used for sending a third fault detection request to the electric appliance in a wireless communication mode if the electric appliance does not detect a fault currently, so that the electric appliance enters a fault test mode to perform fault test in the running process;
the second receiving unit is used for receiving the test data for carrying out the fault test and the operation data of the electric appliance, which are fed back by the electric appliance in a wireless communication mode;
the abnormality judgment unit is used for judging whether the electrical appliance is abnormal or not according to the test data and the operation data received by the second receiving unit;
and the second display unit is used for displaying the abnormal state and/or the abnormal reason of the abnormality if the abnormality judgment unit judges that the electric appliance is abnormal.
10. The apparatus of claim 6,
the wireless communication method comprises the following steps: at least one of wifi, bluetooth, ZigBee, and GPRS;
and/or the presence of a gas in the gas,
the electrical appliance, comprising: at least one of a washing machine, an air conditioner, a refrigerator, and a television.
11. A storage medium, having stored thereon a computer program which, when being executed by a processor, carries out the steps of the method of any one of claims 1 to 5.
12. A terminal comprising a processor, a memory, and a computer program stored on the memory and executable on the processor, the processor implementing the steps of the method of any of claims 1-5 when executing the program.
13. A terminal characterized by comprising a fault detection device of an appliance according to any of claims 6-10.
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| CN201810956504.9A CN109191816B (en) | 2018-08-21 | 2018-08-21 | Electrical appliance fault detection method and device, storage medium and terminal |
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| CN201810956504.9A CN109191816B (en) | 2018-08-21 | 2018-08-21 | Electrical appliance fault detection method and device, storage medium and terminal |
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| CN102818945B (en) * | 2011-12-19 | 2015-07-22 | 中国人民解放军驻六一三所军事代表室 | Method for quickly positioning failure of product |
| CN106382726B (en) * | 2016-09-09 | 2018-12-28 | 深圳市共济科技股份有限公司 | A kind of Fault Locating Method and positioning system of precision air conditioner equipment |
| CN107065663A (en) * | 2017-04-05 | 2017-08-18 | 珠海格力电器股份有限公司 | A kind of unit malfunction test method and its mobile terminal, unit malfunction test system |
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