CN109700309B - Fault detection method, fault detection device, cooking appliance and computer-readable storage medium - Google Patents
Fault detection method, fault detection device, cooking appliance and computer-readable storage medium Download PDFInfo
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- CN109700309B CN109700309B CN201711015596.2A CN201711015596A CN109700309B CN 109700309 B CN109700309 B CN 109700309B CN 201711015596 A CN201711015596 A CN 201711015596A CN 109700309 B CN109700309 B CN 109700309B
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Abstract
The invention provides a fault detection method, a fault detection device, a cooking appliance and a computer readable storage medium, wherein the fault detection method comprises the following steps: triggering a controller to generate a fault detection pulse signal; sending a fault detection pulse signal to the steam foam detection device through a first line between the controller and the steam foam detection device; and judging whether the controller receives a fault detection response signal or not within a preset time period after the fault detection pulse signal is sent, wherein the fault detection response signal is transmitted back through a second line between the controller and the steam foam detection device. According to the technical scheme, the steam foam detection device in the cooking appliance can be subjected to fault detection, and meanwhile, the fault type can be determined, so that the safety of a user is guaranteed, and the user experience is further improved.
Description
Technical Field
The present invention relates to the field of fault detection technologies, and in particular, to a fault detection method, a fault detection apparatus, a cooking appliance, and a computer-readable storage medium.
Background
Cooking utensil possesses steam foam and detects the function, and at the in-process that cooking utensil cooks, steam foam detection device detects when the intracavity takes place the foam and spills over, generates corresponding prompt message to the manual heating power that reduces of suggestion user, or the heating element of automatic triggering cooking utensil reduces heating power.
In the related art, if the steam foam detection device fails, the steam foam detection device can only be disassembled and detected by after-sales personnel, a large amount of time cost and labor cost are needed, in addition, the steam foam detection device fails to cause electrical hidden troubles, the service life of a cooking appliance is possibly influenced, and the personal safety of a user can also be threatened.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art or the related art.
To this end, it is an object of the present invention to provide a fault detection method.
It is another object of the present invention to provide a fault detection device.
Another object of the present invention is to provide a cooking appliance.
It is another object of the present invention to provide a computer-readable storage medium.
In order to achieve the above object, according to an embodiment of a first aspect of the present invention, there is provided a fault detection method including: triggering a controller to generate a fault detection pulse signal; sending a fault detection pulse signal to the steam foam detection device through a first line between the controller and the steam foam detection device; and judging whether the controller receives a fault detection response signal or not within a preset time period after the fault detection pulse signal is sent, wherein the fault detection response signal is transmitted back through a second line between the controller and the steam foam detection device.
In the technical scheme, when the cooking appliance is in a working state, the controller generates a fault detection pulse signal, sends the fault detection pulse signal to the steam foam detection device through the first line, and judges whether the controller receives a fault detection response signal after a preset time period. Through the fault detection response signal that the controller received, judge whether cooking utensil's steam foam detection device breaks down, in the preset time quantum, compare through fault detection pulse signal and fault detection response signal, when fault detection pulse signal matches with fault detection response signal, can confirm that steam foam detection device is normal, and when fault detection pulse signal and fault detection response signal mismatch, can further confirm the fault type, the detection method is simple and timely, do not need complicated machine disassembly to detect, maintenance cost has been saved, and simultaneously, because the timeliness of detection method, the potential safety hazard that steam foam detection subassembly trouble leads to can in time be reduced.
The fault detection pulse signal may be a square wave pulse or a triangular wave pulse, and the first line and the second line may be a wire line or a wireless link.
In addition, the cooking utensil can be one of an electric cooker, a soybean milk maker, a heating type wall breaking machine and an electric kettle.
It should be noted that, the time for receiving the fault detection response signal is limited by a preset time period, for example, the preset time period is 100ms, after 100ms of sending the fault detection pulse, if the controller does not receive the fault detection response signal, it is determined that the detection is invalid or the steam foam detection device is faulty, that is, the sending of the fault detection pulse signal, the preset time period and the receiving of the fault detection response signal are one detection cycle, and those skilled in the art can understand that a plurality of detection cycles can be set to improve the reliability and accuracy of fault detection.
In any of the above technical solutions, preferably, the fault detection method further includes: judging whether the number of pulses of the fault detection response signal is greater than or equal to a first preset number of pulses or not; and when the number of pulses of the fault detection response signal is judged to be greater than or equal to the first preset number of pulses, determining that short-circuit fault information occurs in the first line, the second line and one section of line in the steam foam detection device.
In the technical scheme, through comparing the fault detection pulse signal with the fault detection response signal, when the pulse number of the fault detection response signal is greater than or equal to the first preset pulse number, the short-circuit fault information in the first line, the second line and the steam foam detection device is judged.
In any of the above technical solutions, preferably, the fault detection method further includes: judging whether the number of pulses of the fault detection response signal is less than or equal to a second preset number of pulses; and when the number of pulses of the fault detection response signal is judged to be less than or equal to the second preset number of pulses, determining that the first line, the second line and one section of line in the steam foam detection device have open circuit fault information.
In the technical scheme, through comparing the fault detection pulse signal with the fault detection response signal, when the number of pulses of the fault detection response signal is less than or equal to the second number of pulses, the open-circuit fault information in the first line, the second line and the steam foam detection device is judged.
Specifically, when the cooking appliance is in a working state, the controller is triggered to generate a fault detection pulse signal, the fault detection pulse signal is sent to the steam foam detection device through the first line, the fault detection pulse signal forms a fault detection response signal after passing through the steam foam detection device, the fault detection response signal returns to the controller through the second line, the fault detection pulse signal and the fault detection response signal are compared, if the fault detection pulse signal and the fault detection response signal are completely the same, the steam foam detection device of the cooking appliance normally works and can perform cooking work, when the pulse number of the fault detection response signal is larger than or equal to a first preset pulse number, short-circuit fault information is judged to occur in the first line, the second line and the steam foam detection device, and when the pulse number of the fault detection response signal is smaller than or equal to a second pulse number, the first line is judged, Open circuit fault information occurs in the second line and the steam foam detection device.
In any of the above technical solutions, preferably, the fault detection method further includes: when detecting that steam foam detection device breaks down the information, with the user interaction interface who shows the fault information in cooking utensil with reservation duration continuously, wherein, the fault information includes short-circuit fault information and open circuit fault information.
In the technical scheme, the open circuit fault information and the open circuit fault information are continuously displayed with the preset duration on the user interaction interface of the cooking appliance, the specific fault information can be prompted to a user, the safety of the user is guaranteed, and the user experience is further improved.
In any of the above technical solutions, preferably, the fault detection method further includes: when detecting that steam foam detection device breaks down the information, send the fault information to peripheral hardware communication equipment.
In this technical scheme, fault information through appearing steam foam detection device sends to peripheral hardware communication equipment, be favorable to in time solving steam foam detection device's trouble, wherein, peripheral hardware communication equipment can be mobile terminal or server, the server is used for collecting cooking utensil's fault information, in order to feed back to the after-sales personnel and initiatively go on the maintenance, user's use experience has further been indicateed, and send fault information to mobile terminal, when can making user remote control culinary art process, in time know steam foam detection device and break down, in order to reduce cooking utensil's potential safety hazard.
According to a second aspect of the present invention, there is provided a failure detection device including: the generating unit is used for triggering the controller to generate a fault detection pulse signal; the sending unit is used for sending a fault detection pulse signal to the steam foam detection device through a first line between the controller and the steam foam detection device; and the judging unit is used for judging whether the controller receives a fault detection response signal or not in a preset time period after the fault detection pulse signal is sent, wherein the fault detection response signal is transmitted back through a second line between the controller and the steam foam detection device.
In the technical scheme, when the cooking appliance is in a working state, the controller generates a fault detection pulse signal, sends the fault detection pulse signal to the steam foam detection device through the first line, and judges whether the controller receives a fault detection response signal after a preset time period. Through the fault detection response signal that the controller received, judge whether cooking utensil's steam foam detection device breaks down, in the preset time quantum, compare through fault detection pulse signal and fault detection response signal, when fault detection pulse signal matches with fault detection response signal, can confirm that steam foam detection device is normal, and when fault detection pulse signal and fault detection response signal mismatch, can further confirm the fault type, the detection method is simple and timely, do not need complicated machine disassembly to detect, maintenance cost has been saved, and simultaneously, because the timeliness of detection method, the potential safety hazard that steam foam detection subassembly trouble leads to can in time be reduced.
The fault detection pulse signal may be a square wave pulse or a triangular wave pulse, and the first line and the second line may be a wire line or a wireless link.
In addition, the cooking utensil can be one of an electric cooker, a soybean milk maker, a heating type wall breaking machine and an electric kettle.
It should be noted that, the time for receiving the fault detection response signal is limited by a preset time period, for example, the preset time period is 100ms, after 100ms of sending the fault detection pulse, if the controller does not receive the fault detection response signal, it is determined that the detection is invalid or the steam foam detection device is faulty, that is, the sending of the fault detection pulse signal, the preset time period and the receiving of the fault detection response signal are one detection cycle, and those skilled in the art can understand that a plurality of detection cycles can be set to improve the reliability and accuracy of fault detection.
In any one of the above technical solutions, preferably, the determining unit is further configured to: judging whether the number of pulses of the fault detection response signal is greater than or equal to a first preset number of pulses or not; the fault detection device further includes: and the determining unit is used for determining short-circuit fault information of one section of the first line, the second line and the steam foam detection device when the number of pulses of the fault detection response signal is judged to be greater than or equal to the first preset number of pulses.
In the technical scheme, through comparing the fault detection pulse signal with the fault detection response signal, when the pulse number of the fault detection response signal is greater than or equal to the first preset pulse number, the short-circuit fault information in the first line, the second line and the steam foam detection device is judged.
In any one of the above technical solutions, preferably, the determining unit is further configured to: judging whether the number of pulses of the fault detection response signal is less than or equal to a second preset number of pulses; the fault detection device further includes: and the determining unit is used for determining open circuit fault information of one section of the first line, the second line and the steam foam detection device when the number of pulses of the fault detection response signal is judged to be less than or equal to a second preset number of pulses.
In the technical scheme, through comparing the fault detection pulse signal with the fault detection response signal, when the number of pulses of the fault detection response signal is less than or equal to the second number of pulses, the open-circuit fault information in the first line, the second line and the steam foam detection device is judged.
Specifically, when the cooking appliance is in a working state, the controller is triggered to generate a fault detection pulse signal, the fault detection pulse signal is sent to the steam foam detection device through the first line, the fault detection pulse signal forms a fault detection response signal after passing through the steam foam detection device, the fault detection response signal returns to the controller through the second line, the fault detection pulse signal and the fault detection response signal are compared, if the fault detection pulse signal and the fault detection response signal are completely the same, the steam foam detection device of the cooking appliance normally works and can perform cooking work, when the pulse number of the fault detection response signal is larger than or equal to a first preset pulse number, short-circuit fault information is judged to occur in the first line, the second line and the steam foam detection device, and when the pulse number of the fault detection response signal is smaller than or equal to a second pulse number, the first line is judged, Open circuit fault information occurs in the second line and the steam foam detection device.
In any one of the above technical solutions, preferably, the fault detection apparatus further includes: and the display unit is used for continuously displaying the fault information on a user interaction interface of the cooking appliance in a reserved time length when the fault information of the steam foam detection device is detected, wherein the fault information comprises short-circuit fault information and open-circuit fault information.
In the technical scheme, the open circuit fault information and the open circuit fault information are continuously displayed with the preset duration on the user interaction interface of the cooking appliance, the specific fault information can be prompted to a user, the safety of the user is guaranteed, and the user experience is further improved.
In any of the above technical solutions, preferably, the sending unit is further configured to: when detecting that steam foam detection device breaks down the information, send the fault information to peripheral hardware communication equipment.
In this technical scheme, fault information through appearing steam foam detection device sends to peripheral hardware communication equipment, be favorable to in time solving steam foam detection device's trouble, wherein, peripheral hardware communication equipment can be mobile terminal or server, the server is used for collecting cooking utensil's fault information, in order to feed back to the after-sales personnel and initiatively go on the maintenance, user's use experience has further been indicateed, and send fault information to mobile terminal, when can making user remote control culinary art process, in time know steam foam detection device and break down, in order to reduce cooking utensil's potential safety hazard.
According to an aspect of the third aspect of the present invention, there is provided a cooking appliance including: the invention also provides a fault detection device in the second aspect of the invention.
In any of the above technical solutions, preferably, the cooking appliance is an electric cooker or a soymilk maker or an electric pressure cooker.
According to an aspect of the fourth aspect of the present invention, there is provided a computer-readable storage medium having stored thereon a computer program which, when executed, implements the fault detection method as defined in the aspect of the first aspect.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 shows a schematic flow diagram of a fault detection method according to one embodiment of the invention;
FIG. 2 shows a schematic block diagram of a fault detection apparatus according to an embodiment of the present invention;
fig. 3 shows a schematic block diagram of a cooking appliance according to an embodiment of the present invention;
fig. 4 shows an interaction diagram of a cooking appliance according to an embodiment of the present invention when performing fault detection;
fig. 5 shows an interaction diagram of a cooking appliance according to another embodiment of the present invention when performing fault detection;
fig. 6 shows an interaction diagram of a cooking appliance according to another embodiment of the present invention when performing fault detection.
Detailed Description
In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the invention will be rendered by reference to the appended drawings. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.
Example one
A fault detection method according to an embodiment of the present invention is specifically described below with reference to fig. 1 to 3.
Fig. 1 shows a schematic flow diagram of a fault detection method according to an embodiment of the invention.
As shown in fig. 1, a fault detection method according to an embodiment of the present invention includes: step S102, triggering a controller to generate a fault detection pulse signal; step S104, sending a fault detection pulse signal to the steam foam detection device through a first line between the controller and the steam foam detection device; and step S106, judging whether the controller receives a fault detection response signal or not within a preset time period after the fault detection pulse signal is sent, wherein the fault detection response signal is transmitted back through a second line between the controller and the steam foam detection device.
In this embodiment, when the cooking appliance 300 (shown in fig. 3) is in an operating state, the controller generates a fault detection pulse signal, sends the fault detection pulse signal to the steam foam detection device through the first line, and determines whether the controller receives a fault detection response signal after a preset time period. Through the fault detection response signal that the controller received, judge whether steam foam detection device of cooking utensil 300 breaks down, in the time quantum that predetermines, compare through fault detection pulse signal and fault detection response signal, when fault detection pulse signal matches with fault detection response signal, can confirm that steam foam detection device is normal, and when fault detection pulse signal and fault detection response signal mismatch, can further confirm the fault type, the detection method is simple and timely, do not need complicated machine disassembly to detect, maintenance cost has been saved, and simultaneously, because the timeliness of detection method, the potential safety hazard that steam foam detection subassembly trouble leads to can in time be reduced.
The fault detection pulse signal may be a square wave pulse or a triangular wave pulse, and the first line and the second line may be a wire line or a wireless link.
In addition, the cooking appliance 300 may be one of an electric rice cooker, a soybean milk maker, a heating type wall breaking machine, and an electric kettle.
It should be noted that, the time for receiving the fault detection response signal is limited by a preset time period, for example, the preset time period is 100ms, after 100ms of sending the fault detection pulse, if the controller does not receive the fault detection response signal, it is determined that the detection is invalid or the steam foam detection device is faulty, that is, the sending of the fault detection pulse signal, the preset time period and the receiving of the fault detection response signal are one detection cycle, and those skilled in the art can understand that a plurality of detection cycles can be set to improve the reliability and accuracy of fault detection.
In any of the above technical solutions, preferably, the fault detection method further includes: judging whether the number of pulses of the fault detection response signal is greater than or equal to a first preset number of pulses or not; and when the number of pulses of the fault detection response signal is judged to be greater than or equal to the first preset number of pulses, determining that short-circuit fault information occurs in the first line, the second line and one section of line in the steam foam detection device.
In the technical scheme, through comparing the fault detection pulse signal with the fault detection response signal, when the pulse number of the fault detection response signal is greater than or equal to the first preset pulse number, the short-circuit fault information in the first line, the second line and the steam foam detection device is judged.
In any of the above technical solutions, preferably, the fault detection method further includes: judging whether the number of pulses of the fault detection response signal is less than or equal to a second preset number of pulses; and when the number of pulses of the fault detection response signal is judged to be less than or equal to the second preset number of pulses, determining that the first line, the second line and one section of line in the steam foam detection device have open circuit fault information.
In the technical scheme, through comparing the fault detection pulse signal with the fault detection response signal, when the number of pulses of the fault detection response signal is less than or equal to the second number of pulses, the open-circuit fault information in the first line, the second line and the steam foam detection device is judged.
Specifically, when the cooking appliance 300 is in the operating state, the controller is triggered to generate a fault detection pulse signal, the fault detection pulse signal is sent to the steam foam detection device through the first line, the fault detection pulse signal passes through the steam foam detection device to form a fault detection response signal, the fault detection response signal is returned to the controller through the second line, the fault detection pulse signal and the fault detection response signal are compared, if the fault detection pulse signal and the fault detection response signal are completely the same, the steam foam detection device of the cooking appliance 300 normally operates to perform cooking, when the number of pulses of the fault detection response signal is greater than or equal to a first preset number of pulses, short-circuit fault information occurs in the first line, the second line and the steam foam detection device, and when the number of pulses of the fault detection response signal is less than or equal to a second number of pulses, the first line is determined, Open circuit fault information occurs in the second line and the steam foam detection device.
In any of the above technical solutions, preferably, the fault detection method further includes: when detecting that the steam foam detection device has fault information, continuously displaying the fault information on the user interaction interface of the cooking appliance 300 in a reserved time length, wherein the fault information comprises short circuit fault information and open circuit fault information.
In the technical scheme, the open circuit fault information and the open circuit fault information are continuously displayed with the preset duration on the user interaction interface of the cooking appliance 300, so that specific fault information can be prompted to a user, the safety of the user is guaranteed, and the user experience is improved.
In any of the above technical solutions, preferably, the fault detection method further includes: when detecting that steam foam detection device breaks down the information, send the fault information to peripheral hardware communication equipment.
In this technical scheme, fault information through appearing steam foam detection device sends to peripheral hardware communication equipment, be favorable to in time solving steam foam detection device's trouble, wherein, peripheral hardware communication equipment can be mobile terminal or server, the server is used for collecting cooking utensil 300's fault information, in order to feed back to the after-sales personnel and take the initiative maintenance of going to the door, user's use experience has further been indicateed, and fault information sends to mobile terminal, when can making user remote control culinary art process, in time know steam foam detection device and break down, in order to reduce cooking utensil 300's potential safety hazard.
Fig. 2 shows a schematic block diagram of a fault detection arrangement according to an embodiment of the invention.
As shown in fig. 2, the failure detection apparatus 200 according to an embodiment of the present invention includes: a generating unit 202 for triggering the controller to generate a fault detection pulse signal; a sending unit 204, configured to send a fault detection pulse signal to the steam foam detection device through a first line between the controller and the steam foam detection device; and a judging unit 206, configured to judge whether the controller receives a fault detection response signal within a preset time period after the fault detection pulse signal is sent, where the fault detection response signal is transmitted back through a second line between the controller and the steam foam detection device.
In this embodiment, when the cooking appliance 300 (shown in fig. 3) is in a working state, the controller generates a fault detection pulse signal, sends the fault detection pulse signal to the steam foam detection device through the first line, and determines whether the controller receives a fault detection response signal after a preset time period. Through the fault detection response signal that the controller received, judge whether steam foam detection device of cooking utensil 300 breaks down, in the time quantum that predetermines, compare through fault detection pulse signal and fault detection response signal, when fault detection pulse signal matches with fault detection response signal, can confirm that steam foam detection device is normal, and when fault detection pulse signal and fault detection response signal mismatch, can further confirm the fault type, the detection method is simple and timely, do not need complicated machine disassembly to detect, maintenance cost has been saved, and simultaneously, because the timeliness of detection method, the potential safety hazard that steam foam detection subassembly trouble leads to can in time be reduced.
The fault detection pulse signal may be a square wave pulse or a triangular wave pulse, and the first line and the second line may be a wire line or a wireless link.
In addition, the cooking appliance 300 may be one of an electric rice cooker, a soybean milk maker, a heating type wall breaking machine, and an electric kettle.
It should be noted that, the time for receiving the fault detection response signal is limited by a preset time period, for example, the preset time period is 100ms, after 100ms of sending the fault detection pulse, if the controller does not receive the fault detection response signal, it is determined that the detection is invalid or the steam foam detection device is faulty, that is, the sending of the fault detection pulse signal, the preset time period and the receiving of the fault detection response signal are one detection cycle, and those skilled in the art can understand that a plurality of detection cycles can be set to improve the reliability and accuracy of fault detection.
In any of the above technical solutions, preferably, the determining unit 206 is further configured to: judging whether the number of pulses of the fault detection response signal is greater than or equal to a first preset number of pulses or not; the failure detection apparatus 200 further includes: and the determining unit 208 is configured to determine that short-circuit fault information occurs in the first line, the second line and one section of the steam foam detection device when it is determined that the number of pulses of the fault detection response signal is greater than or equal to a first preset number of pulses.
In the technical scheme, through comparing the fault detection pulse signal with the fault detection response signal, when the pulse number of the fault detection response signal is greater than or equal to the first preset pulse number, the short-circuit fault information in the first line, the second line and the steam foam detection device is judged.
In any of the above technical solutions, preferably, the determining unit 206 is further configured to: judging whether the number of pulses of the fault detection response signal is less than or equal to a second preset number of pulses; the failure detection apparatus 200 further includes: and the determining unit 208 is configured to determine that open-circuit fault information occurs in one of the first line, the second line and the steam foam detection device when it is determined that the number of pulses of the fault detection response signal is less than or equal to a second preset number of pulses.
In the technical scheme, through comparing the fault detection pulse signal with the fault detection response signal, when the number of pulses of the fault detection response signal is less than or equal to the second number of pulses, the open-circuit fault information in the first line, the second line and the steam foam detection device is judged.
Specifically, when the cooking appliance 300 is in the operating state, the controller is triggered to generate a fault detection pulse signal, the fault detection pulse signal is sent to the steam foam detection device through the first line, the fault detection pulse signal passes through the steam foam detection device to form a fault detection response signal, the fault detection response signal is returned to the controller through the second line, the fault detection pulse signal and the fault detection response signal are compared, if the fault detection pulse signal and the fault detection response signal are completely the same, the steam foam detection device of the cooking appliance 300 normally operates to perform cooking, when the number of pulses of the fault detection response signal is greater than or equal to a first preset number of pulses, short-circuit fault information occurs in the first line, the second line and the steam foam detection device, and when the number of pulses of the fault detection response signal is less than or equal to a second number of pulses, the first line is determined, Open circuit fault information occurs in the second line and the steam foam detection device.
In any of the above technical solutions, preferably, the fault detection apparatus 200 further includes: the display unit 210 is configured to continuously display fault information on a user interface of the cooking appliance 300 for a predetermined time length when fault information of the steam foam detection device is detected, where the fault information includes short-circuit fault information and open-circuit fault information.
In the technical scheme, the open circuit fault information and the open circuit fault information are continuously displayed with the preset duration on the user interaction interface of the cooking appliance 300, so that specific fault information can be prompted to a user, the safety of the user is guaranteed, and the user experience is improved.
In any of the above technical solutions, preferably, the sending unit 204 is further configured to: when detecting that steam foam detection device breaks down the information, send the fault information to peripheral hardware communication equipment.
In this technical scheme, fault information through appearing steam foam detection device sends to peripheral hardware communication equipment, be favorable to in time solving steam foam detection device's trouble, wherein, peripheral hardware communication equipment can be mobile terminal or server, the server is used for collecting cooking utensil 300's fault information, in order to feed back to the after-sales personnel and take the initiative maintenance of going to the door, user's use experience has further been indicateed, and fault information sends to mobile terminal, when can making user remote control culinary art process, in time know steam foam detection device and break down, in order to reduce cooking utensil 300's potential safety hazard.
Fig. 3 shows a schematic block diagram of a cooking appliance according to an embodiment of the present invention.
As shown in fig. 3, a cooking appliance 300 according to an embodiment of the present invention includes: such as the fault detection device 200 shown in fig. 2.
In any of the above technical solutions, preferably, the cooking appliance 300 is an electric cooker, a soymilk maker or an electric pressure cooker.
As shown in fig. 4 to 6, the cooking appliance 300 includes a controller and a steam foam detection device, which are electrically connected, and the connection ports are an a port, a B port, a C port and a D port, respectively, wherein the a port and the C port form a first line AC, the D port and the B port form a second line DB, the controller sends a pulse signal 400 to the steam foam detection device through the first line AC, the duty ratio of the pulse signal is 1:1, and the number of pulses is n, and the specific detection method includes:
the first embodiment is as follows:
as shown in fig. 4, after a preset period of time for which the pulse signal 400 is transmitted, the controller receives the response signal 500 including n pulses through the second line DB, and determines that the steam bubble detecting device is not malfunctioning.
Example two:
as shown in fig. 5, after a preset period of time in which the pulse signal 400 is transmitted, the controller receives the response signal 500 including 0 pulses through the second line DB, and determines that the open-circuit fault occurs in at least one of the steam foam detection device, the first line AC, and the second line DB.
Example three:
as shown in fig. 6, after a preset period of time for which the pulse signal 400 is transmitted, the controller receives the response signal 500 including 2n-1 pulses through the second line DB, and determines that a short-circuit fault occurs in at least one of the steam foam detection device, the first line AC, and the second line DB.
According to an embodiment of the present invention, there is also provided a computer-readable storage medium having stored thereon a computer program which, when executed, performs the steps of: triggering a controller to generate a fault detection pulse signal; sending a fault detection pulse signal to the steam foam detection device through a first line between the controller and the steam foam detection device; and judging whether the controller receives a fault detection response signal or not within a preset time period after the fault detection pulse signal is sent, wherein the fault detection response signal is transmitted back through a second line between the controller and the steam foam detection device.
In the technical scheme, when the cooking appliance is in a working state, the controller generates a fault detection pulse signal, sends the fault detection pulse signal to the steam foam detection device through the first line, and judges whether the controller receives a fault detection response signal after a preset time period. Through the fault detection response signal that the controller received, judge whether cooking utensil's steam foam detection device breaks down, in the preset time quantum, compare through fault detection pulse signal and fault detection response signal, when fault detection pulse signal matches with fault detection response signal, can confirm that steam foam detection device is normal, and when fault detection pulse signal and fault detection response signal mismatch, can further confirm the fault type, the detection method is simple and timely, do not need complicated machine disassembly to detect, maintenance cost has been saved, and simultaneously, because the timeliness of detection method, the potential safety hazard that steam foam detection subassembly trouble leads to can in time be reduced.
The fault detection pulse signal may be a square wave pulse or a triangular wave pulse, and the first line and the second line may be a wire line or a wireless link.
In addition, the cooking utensil can be one of an electric cooker, a soybean milk maker, a heating type wall breaking machine and an electric kettle.
It should be noted that, the time for receiving the fault detection response signal is limited by a preset time period, for example, the preset time period is 100ms, after 100ms of sending the fault detection pulse, if the controller does not receive the fault detection response signal, it is determined that the detection is invalid or the steam foam detection device is faulty, that is, the sending of the fault detection pulse signal, the preset time period and the receiving of the fault detection response signal are one detection cycle, and those skilled in the art can understand that a plurality of detection cycles can be set to improve the reliability and accuracy of fault detection.
In any of the above technical solutions, preferably, the fault detection method further includes: judging whether the number of pulses of the fault detection response signal is greater than or equal to a first preset number of pulses or not; and when the number of pulses of the fault detection response signal is judged to be greater than or equal to the first preset number of pulses, determining that short-circuit fault information occurs in the first line, the second line and one section of line in the steam foam detection device.
In the technical scheme, through comparing the fault detection pulse signal with the fault detection response signal, when the pulse number of the fault detection response signal is greater than or equal to the first preset pulse number, the short-circuit fault information in the first line, the second line and the steam foam detection device is judged.
In any of the above technical solutions, preferably, the fault detection method further includes: judging whether the number of pulses of the fault detection response signal is less than or equal to a second preset number of pulses; and when the number of pulses of the fault detection response signal is judged to be less than or equal to the second preset number of pulses, determining that the first line, the second line and one section of line in the steam foam detection device have open circuit fault information.
In the technical scheme, through comparing the fault detection pulse signal with the fault detection response signal, when the number of pulses of the fault detection response signal is less than or equal to the second number of pulses, the open-circuit fault information in the first line, the second line and the steam foam detection device is judged.
Specifically, when the cooking appliance is in a working state, the controller is triggered to generate a fault detection pulse signal, the fault detection pulse signal is sent to the steam foam detection device through the first line, the fault detection pulse signal forms a fault detection response signal after passing through the steam foam detection device, the fault detection response signal returns to the controller through the second line, the fault detection pulse signal and the fault detection response signal are compared, if the fault detection pulse signal and the fault detection response signal are completely the same, the steam foam detection device of the cooking appliance normally works and can perform cooking work, when the pulse number of the fault detection response signal is larger than or equal to a first preset pulse number, short-circuit fault information is judged to occur in the first line, the second line and the steam foam detection device, and when the pulse number of the fault detection response signal is smaller than or equal to a second pulse number, the first line is judged, Open circuit fault information occurs in the second line and the steam foam detection device.
In any of the above technical solutions, preferably, the fault detection method further includes: when detecting that steam foam detection device breaks down the information, with the user interaction interface who shows the fault information in cooking utensil with reservation duration continuously, wherein, the fault information includes short-circuit fault information and open circuit fault information.
In the technical scheme, the open circuit fault information and the open circuit fault information are continuously displayed with the preset duration on the user interaction interface of the cooking appliance, the specific fault information can be prompted to a user, the safety of the user is guaranteed, and the user experience is further improved.
In any of the above technical solutions, preferably, the fault detection method further includes: when detecting that steam foam detection device breaks down the information, send the fault information to peripheral hardware communication equipment.
In this technical scheme, fault information through appearing steam foam detection device sends to peripheral hardware communication equipment, be favorable to in time solving steam foam detection device's trouble, wherein, peripheral hardware communication equipment can be mobile terminal or server, the server is used for collecting cooking utensil's fault information, in order to feed back to the after-sales personnel and initiatively go on the maintenance, user's use experience has further been indicateed, and send fault information to mobile terminal, when can making user remote control culinary art process, in time know steam foam detection device and break down, in order to reduce cooking utensil's potential safety hazard.
The technical scheme of the invention is described in detail in the above with reference to the accompanying drawings, and the invention provides a fault detection method, a fault detection device, a cooking appliance and a computer readable storage medium, wherein the magnitude relation of the number of pulse signals is judged by a judgment unit through the comparison between a fault detection pulse signal triggered by a controller and a fault detection response signal returned by a steam foam detection device, the fault type is further determined by a determination unit, and a user can directly know the fault type through a display unit and remind the user of the fault occurrence of the steam foam detection device of the cooking appliance, so that the safety of the user is guaranteed, and the user experience is further improved.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. A fault detection method for a cooking appliance having a steam foam detection device and a controller electrically connected thereto, the fault detection method comprising:
triggering the controller to generate a fault detection pulse signal;
sending the fault detection pulse signal to the steam foam detection device through a first line between the controller and the steam foam detection device;
judging whether the controller receives a fault detection response signal within a preset time period after the fault detection pulse signal is sent,
wherein the fault detection response signal is transmitted back through a second line between the controller and the vapor foam detection device;
the fault detection method further comprises:
judging whether the number of pulses of the fault detection response signal is greater than or equal to a first preset number of pulses;
when the number of pulses of the fault detection response signal is judged to be greater than or equal to the first preset number of pulses, determining that short-circuit fault information occurs in the first line, the second line and one section of line in the steam foam detection device; or
The fault detection method further comprises:
judging whether the number of pulses of the fault detection response signal is less than or equal to a second preset number of pulses;
and when the number of pulses of the fault detection response signal is judged to be less than or equal to the second preset number of pulses, determining that open circuit fault information occurs in one section of the first line, the second line and the steam foam detection device.
2. The fault detection method of claim 1, further comprising:
when the fault information of the steam foam detection device is detected, the fault information is continuously displayed on a user interaction interface of the cooking appliance in a reserved time length,
wherein the fault information includes the short-circuit fault information and the open-circuit fault information.
3. The fault detection method of claim 2, further comprising:
and when the fault information of the steam foam detection device is detected, sending the fault information to peripheral communication equipment.
4. A fault detection device adapted for a cooking appliance provided with a steam foam detection device and a controller electrically connected, the fault detection device comprising:
the generating unit is used for triggering the controller to generate a fault detection pulse signal;
a transmitting unit for transmitting the fault detection pulse signal to the steam foam detection device through a first line between the controller and the steam foam detection device;
a judging unit for judging whether the controller receives a fault detection response signal within a preset time period after the fault detection pulse signal is transmitted,
wherein the fault detection response signal is transmitted back through a second line between the controller and the vapor foam detection device;
the judging unit is further configured to: judging whether the number of pulses of the fault detection response signal is greater than or equal to a first preset number of pulses;
the failure detection apparatus further includes:
the determining unit is used for determining short-circuit fault information of one section of the first line, the second line and the steam foam detection device when the number of pulses of the fault detection response signal is judged to be greater than or equal to the first preset number of pulses; or
The judging unit is further configured to: judging whether the number of pulses of the fault detection response signal is less than or equal to a second preset number of pulses;
the failure detection apparatus further includes:
and the determining unit is used for determining that the open circuit fault information occurs in one section of the first line, the second line and the steam foam detection device when the number of pulses of the fault detection response signal is judged to be less than or equal to the second preset number of pulses.
5. The fault detection device of claim 4, further comprising:
a display unit for continuously displaying the fault information on a user interaction interface of the cooking appliance for a reserved time length when the fault information of the steam foam detection device is detected,
wherein the fault information includes the short-circuit fault information and the open-circuit fault information.
6. The failure detection device according to claim 5,
the sending unit is further configured to: and when the fault information of the steam foam detection device is detected, sending the fault information to peripheral communication equipment.
7. A cooking appliance, comprising:
a fault detection device according to any one of claims 4 to 6.
8. The cooking appliance of claim 7,
the cooking appliance is an electric cooker or a soybean milk machine or an electric pressure cooker.
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