CN112731197A - Fault detection method and device for ultraviolet lamp of water purifier, water purifier and storage medium - Google Patents
Fault detection method and device for ultraviolet lamp of water purifier, water purifier and storage medium Download PDFInfo
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- CN112731197A CN112731197A CN202011509395.XA CN202011509395A CN112731197A CN 112731197 A CN112731197 A CN 112731197A CN 202011509395 A CN202011509395 A CN 202011509395A CN 112731197 A CN112731197 A CN 112731197A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/44—Testing lamps
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2/00—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
- A61L2/02—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor using physical phenomena
- A61L2/08—Radiation
- A61L2/10—Ultra-violet radiation
Abstract
The application relates to a fault detection method and device for an ultraviolet lamp of a water purifier, the water purifier and a storage medium. The method comprises the following steps: after a lighting control signal is sent to the ultraviolet lamp, whether the ultraviolet lamp is abnormally started or not is detected; when the ultraviolet lamp is detected and determined to be abnormally opened, an additional driving signal is sent to the ultraviolet lamp; and determining whether the ultraviolet lamp fails according to the state of the ultraviolet lamp after the additional driving signal is sent. By adopting the method, the fault state of the ultraviolet lamp can be known in time for maintenance, so that the water quality of the water purifier is ensured, and the safety is improved.
Description
Technical Field
The application relates to the technical field of water purifiers, in particular to a fault detection method and device for an ultraviolet lamp of a water purifier, the water purifier and a storage medium.
Background
Along with the improvement of the living standard of people, the wide popularity of the water purifier also makes people put forward higher requirements on the quality and the safety of water preparation. The ultraviolet lamp has remarkable light sterilization effect and no toxic or side effect, so that the ultraviolet lamp is widely applied to the sterilization field. Therefore, most of the water purifying principles of the existing water purifiers utilize the built-in ultraviolet lamp to emit ultraviolet light to kill bacteria.
However, the water purifier is actually used in various environments due to the use habits and layout requirements of users. When in some adverse circumstances, cause the ultraviolet lamp easily and appear contact subalternation problem influence opening of ultraviolet lamp, and then make the water quality safety of purifier drop greatly, lead to the security to reduce.
Disclosure of Invention
The invention provides a fault detection method and device for an ultraviolet lamp of a water purifier, the water purifier and a storage medium, aiming at the problem that the fault of the ultraviolet lamp of the water purifier affects the water quality safety.
A fault detection method for a water purifier ultraviolet lamp, the method comprising:
after a lighting control signal is sent to an ultraviolet lamp, detecting whether the ultraviolet lamp is abnormally started or not;
when the ultraviolet lamp is detected and determined to be abnormally opened, sending an additional driving signal to the ultraviolet lamp;
and determining whether the ultraviolet lamp fails according to the state of the ultraviolet lamp after the additional driving signal is sent.
In one embodiment, the detecting whether the ultraviolet lamp is abnormally turned on after the lighting control signal is sent to the ultraviolet lamp includes:
after sending a lighting control signal to an ultraviolet lamp, continuously detecting a level signal of the ultraviolet lamp within a preset filtering time;
and determining whether the ultraviolet lamp is abnormally started or not according to the level signal.
In one embodiment, the determining whether the ultraviolet lamp is abnormally turned on according to the level signal includes:
when the level signal is a high level signal, determining that the ultraviolet lamp is normally started;
and when the level signal is continuously a low level signal, determining that the ultraviolet lamp is abnormally opened.
In one embodiment, the determining whether the ultraviolet lamp is malfunctioning based on the status of the ultraviolet lamp after the additional driving signal is sent comprises:
after the additional driving signal is sent, if the level signal of the ultraviolet lamp is detected to be a low level signal continuously in a preset filtering time, determining that the ultraviolet lamp is in an open fault;
and if the high level signal of the ultraviolet lamp is detected within the preset filtering time, determining that the ultraviolet lamp is not in fault.
In one embodiment, the determining that the ultraviolet lamp is turned on if the level signal of the ultraviolet lamp is detected to be a low level signal within a preset filtering time after the additional driving signal is sent includes:
after the extra driving signal is sent, recording the current sent times;
if the level signal of the ultraviolet lamp is detected to be a low level signal continuously in the preset filtering time, comparing the sent times with preset times;
when the sent times are less than the preset times, returning to the step of sending an additional driving signal to the ultraviolet lamp;
and when the sent times are greater than or equal to the preset times, clearing the sent times and determining the opening fault of the ultraviolet lamp.
In one embodiment, after determining whether the ultraviolet lamp is failed according to the state of the ultraviolet lamp after receiving the additional driving signal, the method further comprises:
when the ultraviolet lamp is determined to be in fault, generating prompt information;
and playing and/or displaying the prompt information, and controlling an indicator lamp to flash so as to remind a user to maintain the ultraviolet lamp.
A fault detection device for a water purifier ultraviolet lamp, the device comprising:
the abnormality detection module is used for detecting whether the ultraviolet lamp is abnormally started or not after the illumination control signal is sent to the ultraviolet lamp;
the sending module is used for sending an additional driving signal to the ultraviolet lamp when the ultraviolet lamp is detected to be abnormally opened;
and the fault determining module is used for determining whether the ultraviolet lamp is in fault according to the state of the ultraviolet lamp after the additional driving signal is sent.
In one embodiment, the abnormality detection module is further configured to continuously detect the level signal of the ultraviolet lamp for a preset filtering time after sending the lighting control signal to the ultraviolet lamp; and determining whether the ultraviolet lamp is abnormally started or not according to the level signal.
A water purifier comprises a memory, a controller and an ultraviolet lamp connected with the controller, wherein the memory stores a computer program, and the controller executes the computer program to realize the steps of the fault detection method of the ultraviolet lamp of the water purifier.
A computer readable storage medium having stored thereon a computer program which, when executed by a controller, implements the steps of the method of fault detection of a water purifier uv lamp as described in any one of the above.
According to the fault detection method and device for the ultraviolet lamp of the water purifier, the water purifier and the storage medium, after the lighting control signal is sent to the ultraviolet lamp, whether the ultraviolet lamp is abnormally started is detected, when the ultraviolet lamp is detected and confirmed to be abnormally started, the additional driving signal is sent to the ultraviolet lamp, and whether the ultraviolet lamp is in fault is confirmed through the state of the ultraviolet lamp after receiving the additional driving signal. According to the method, when the ultraviolet lamp is abnormally lightened, fault detection is timely carried out through the additional driving signal, and the fault state of the ultraviolet lamp can be timely known for maintenance, so that the water quality of the water purifier is ensured, and the safety is improved.
Drawings
FIG. 1 is a schematic flow chart illustrating a method for detecting a fault in an ultraviolet lamp of a water purifier according to an embodiment;
FIG. 2 is a schematic flow chart illustrating a method for detecting a malfunction of an ultraviolet lamp of a water purifier according to another embodiment;
FIG. 3 is a schematic flow chart illustrating a method for detecting a malfunction of an ultraviolet lamp of a water purifier according to yet another embodiment;
FIG. 4 is a block diagram of a fault detection device for UV lamps of a water purifier according to an embodiment;
fig. 5 is an internal structure view of the water purifier in one embodiment.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
In an embodiment, as shown in fig. 1, a method for detecting a fault of an ultraviolet lamp of a water purifier is provided, which is described by taking an example that the method is applied to a controller of the water purifier, and includes the following steps:
and S102, after the lighting control signal is sent to the ultraviolet lamp, detecting whether the ultraviolet lamp is abnormally started or not.
The ultraviolet lamp is a light source capable of generating ultraviolet light with a large effective range, and the generated ultraviolet light can be used for sterilization. The lighting control signal is a control signal sent by the controller for lighting the ultraviolet lamp.
Specifically, when the ultraviolet lamp of purifier needs to light, the controller sends the control signal that lights to the ultraviolet lamp, lights through the control signal control ultraviolet lamp of lighting. And in order to ensure that the ultraviolet lamp is normally lightened, the controller detects the state of the ultraviolet lamp in real time to confirm whether the ultraviolet lamp is lightened or not after sending a lightening control signal. If the controller detects that the ultraviolet lamp is lighted, the ultraviolet lamp is started normally without abnormity. And if the controller detects that the ultraviolet lamp is not successfully lightened, namely the ultraviolet lamp is not normally started, the ultraviolet lamp is abnormally started.
And step S104, when the ultraviolet lamp is detected and determined to be abnormally opened, sending an additional driving signal to the ultraviolet lamp.
The additional driving signal is a signal for driving the ultraviolet lamp to be turned on, and may be understood as a signal for sending an on control signal to the ultraviolet lamp again.
Specifically, when the controller detects that the ultraviolet lamp is abnormally turned on after transmitting the lighting control signal, in order to verify whether the lighting failure is caused by the failure of the ultraviolet lamp, the controller transmits an additional driving signal to the ultraviolet lamp again, and controls the lighting of the ultraviolet lamp again by the additional driving signal.
And S106, determining whether the ultraviolet lamp fails according to the state of the ultraviolet lamp after the additional driving signal is sent.
Specifically, after the controller sends the additional driving signal, whether the ultraviolet lamp is failed or not is determined according to the state of the ultraviolet lamp after the additional driving signal. If, after sending the additional drive signal, it is detected that the status of the ultraviolet lamp remains unlit, then a failure of the ultraviolet lamp is determined. And if the state of the ultraviolet lamp is detected to be on after the additional driving signal is transmitted, determining that the ultraviolet lamp is not failed.
According to the fault detection method for the ultraviolet lamp of the water purifier, after the lighting control signal is sent to the ultraviolet lamp, whether the ultraviolet lamp is abnormally started is detected, when the ultraviolet lamp is detected and determined to be abnormally started, the additional driving signal is sent to the ultraviolet lamp, and whether the ultraviolet lamp is in fault is determined through the state of the ultraviolet lamp after receiving the additional driving signal. According to the method, when the ultraviolet lamp is abnormally lightened, the fault detection is carried out in time through the additional driving signal, and the fault state of the ultraviolet lamp can be conveniently and timely known for maintenance, so that the water quality of the water purifier is ensured, and the safety is improved
In one embodiment, step S102 includes: after the lighting control signal is sent to the ultraviolet lamp, the level signal of the ultraviolet lamp is continuously detected within the preset filtering time; and determining whether the ultraviolet lamp is abnormally started or not according to the level signal.
Specifically, under the condition that the ultraviolet lamp in the water purifier is normally turned on, the voltage is applied to two ends of the lamp tube of the ultraviolet lamp, so that the ultraviolet lamp can feed back a corresponding level signal to indicate whether the ultraviolet lamp is successfully turned on. Therefore, the controller determines whether the ultraviolet lamp is abnormally turned on according to the state of the level signal by detecting the level signal of the ultraviolet lamp. In addition, in order to prevent the fault misjudgment caused by the delay of the opening of the ultraviolet lamp, the controller continuously detects the level signal of the ultraviolet lamp within the preset filtering time. And judging whether the ultraviolet lamp is abnormally started or not according to the state of the level signal in the filtering time period. The preset filtering time can be configured according to actual requirements, and is set to continuously detect the level signal within 1 minute, for example.
In one embodiment, determining whether the ultraviolet lamp is abnormally turned on based on the level signal includes: when the level signal is a high level signal, determining that the ultraviolet lamp is normally started; and when the level signal is continuously a low level signal, determining that the ultraviolet lamp is abnormally started.
Specifically, when the ultraviolet lamp is successfully lighted, the feedback level signal is high level, and when the ultraviolet lamp is not successfully lighted, the feedback level signal is low level. Therefore, when the level signal detected by the controller within the preset filtering time is a high level signal, the ultraviolet lamp is successfully lighted, and the ultraviolet lamp is determined to be normally turned on without abnormality. And when the level signal detected by the controller in the preset filtering time is a low level signal all the time, the ultraviolet lamp is not successfully lightened, and the ultraviolet lamp is determined to be abnormally opened.
In this embodiment, whether the ultraviolet lamp is opened unusually is judged through detecting the level signal that the ultraviolet lamp fed back, can use the actual state of ultraviolet lamp as the standard to improve the accuracy of anomaly detection.
In one embodiment, step S106 includes: after the additional driving signal is sent, if the level signal of the ultraviolet lamp is detected to be a low level signal in the preset filtering time, determining that the ultraviolet lamp is in a starting fault; and if the high level signal of the ultraviolet lamp is detected within the preset filtering time, determining that the ultraviolet lamp is not in fault.
Specifically, whether the ultraviolet lamp is out of order or not can be detected after the additional driving signal is sent, and the judgment can be also made by detecting the level signal fed back by the ultraviolet lamp. That is, the controller detects the level signal of the ultraviolet lamp for a preset filtering time after transmitting the additional driving signal. When the level signal detected at this time is still at a low level within the preset filtering time, the ultraviolet lamp is not successfully lighted, and the fault of the ultraviolet lamp is determined. And when the level signal detected at this time has a high level within the preset filtering time, the controller can stop the detection and determine that the ultraviolet lamp is not in fault because the high level indicates that the ultraviolet lamp is lighted.
In this embodiment, judge whether the ultraviolet lamp is out of order through the level signal that detects the ultraviolet lamp feedback, can use the actual condition of ultraviolet lamp as the standard to improve fault detection's accuracy.
In one embodiment, after the additional driving signal is sent, if the level signal of the ultraviolet lamp is detected to be a low level signal continuously within the preset filtering time, determining that the ultraviolet lamp is turned on and failed includes: after the extra driving signal is sent, recording the current sent times; if the level signal of the ultraviolet lamp is detected to be a low level signal continuously in the preset filtering time, comparing the sent times with preset times; when the sent times are less than the preset times, returning to the step of sending an additional driving signal to the ultraviolet lamp; and when the sent times are greater than or equal to the preset times, clearing the sent times and determining the opening fault of the ultraviolet lamp.
The sent times are the times of sending the additional driving signals, the preset times are the preset times of sending the additional driving signals, for example, the number of restarting the ultraviolet lamp is limited to 3, and the preset times is 3. The preset times may be configured according to an actual restart requirement, and are not specifically limited herein.
Specifically, after the additional driving signal is transmitted once, the present embodiment immediately records the number of times the additional driving signal is currently transmitted. For example, if the currently transmitted additional driving signal this time is the first transmission, the recorded number of transmissions is 1. If the number of times of sending is not the first time, 1 is incremented on the number of times of sending, and if the number is originally 2, the number is incremented to 3, that is, the number of times of sending is recorded as 3. Then, the state of the ultraviolet lamp after the additional driving signal is sent is judged again. That is, after the additional driving signal is transmitted, the controller continuously detects the level signal of the ultraviolet lamp for a preset filtering time. And when the level signal is continuously a low level signal, comparing the recorded sent times with the preset times, and judging whether the sent times reach the preset times. And when the sent times are less than the preset times, which indicates that although the current ultraviolet lamp is not successfully lightened, the ultraviolet lamp still has a chance to be restarted, returning to the step of sending the additional driving signal to the ultraviolet lamp, and sending the additional driving signal once again to restart the ultraviolet lamp next time. And if the sent times are more than or equal to the preset times, determining that the preset times are reached, and indicating that the preset restart times are used up. And if the ultraviolet lamp is not successfully lightened under the condition that the restart times are used, clearing the recorded sent times and determining the fault of the ultraviolet lamp. In addition, when the ultraviolet lamp is restarted by transmitting the additional driving signal for a plurality of times, the recorded transmitted times are also cleared as long as it is determined that the ultraviolet lamp is successfully lit within the preset times, but it is determined that the ultraviolet lamp is not failed.
In the embodiment, due to the influence of some external and internal factors, the ultraviolet lamp may have a normal phenomenon of unsuccessful start in practice, so that fault misjudgment is avoided and the fault detection accuracy is improved by sending additional driving signals for multiple times.
In one embodiment, as shown in fig. 2, after step S106, the following steps are further included:
step S108, when the ultraviolet lamp is determined to be in fault, prompt information is generated;
and step S110, playing and/or displaying prompt information, and controlling the indicator lamp to flash to remind a user to maintain the ultraviolet lamp.
Specifically, when the controller has determined that the ultraviolet lamp is malfunctioning, a prompt is generated. The prompt message comprises a text prompt and/or a voice prompt, and the text prompt can be a word of 'the ultraviolet lamp has a fault, and please repair or replace the ultraviolet lamp as soon as possible'. The voice prompt may be a fixed fault prompting audio, such as a beep audio to prompt the ultraviolet lamp for a fault. Furthermore, after the controller generates the prompt message, the text message can be controlled to be displayed on the display screen of the ultraviolet lamp, and the voice message can be played through the loudspeaker. Meanwhile, an indicator lamp for prompting the fault of the ultraviolet lamp is arranged on the water purifier, and the indicator lamp is controlled to flicker to prompt a user that the fault of the ultraviolet lamp needs to be maintained.
In addition, when the ultraviolet lamp is detected and determined not to be in fault, prompt information that the ultraviolet lamp is normal can be generated and displayed on a display screen of the water purifier.
In this embodiment, need the maintenance through the user's ultraviolet lamp trouble of suggestion information suggestion, ensure that the user can in time learn the fault conditions and maintain, ensure purifier quality of water safety, improve the security.
In an embodiment, as shown in fig. 3, another method for detecting a fault of an ultraviolet lamp of a water purifier is provided, which specifically includes the following steps:
step S301, a lighting control signal is sent to the ultraviolet lamp.
Step S302, determining whether the ultraviolet lamp is successfully turned on, if so, going to step S309, and if not, going to step S303.
And step S303, sending an additional driving signal to the ultraviolet lamp, and recording the sent times of the additional driving signal.
Step S304, determining whether the ultraviolet lamp is successfully turned on, if so, going to step S308, and if not, going to step S305.
Step S305, comparing the sent times with a preset time, if the sent times is less than the preset time, step S303 is performed, and if the sent times is greater than or equal to the preset time, step S306 is performed.
And step S306, clearing the sent times and determining the fault of the ultraviolet lamp.
And step S307, generating prompt information, displaying and/or playing the prompt information, and controlling the indicator light to flash.
In step S308, the sent number is cleared, and the process proceeds to step S309.
In step S309, the UV lamp is not faulty.
It should be understood that although the various steps in the flow charts of fig. 1-3 are shown in order as indicated by the arrows, the steps are not necessarily performed in order as indicated by the arrows. The steps are not performed in the exact order shown and described, and may be performed in other orders, unless explicitly stated otherwise. Moreover, at least some of the steps in fig. 1-3 may include multiple steps or multiple stages, which are not necessarily performed at the same time, but may be performed at different times, which are not necessarily performed in sequence, but may be performed in turn or alternately with other steps or at least some of the other steps.
In one embodiment, as shown in fig. 4, there is provided a fault detection device for a water purifier ultraviolet lamp, including: an anomaly detection module 402, a sending module 404, and a fault determination module 406, wherein:
an anomaly detection module 402 configured to detect whether the ultraviolet lamp is abnormally turned on after sending the lighting control signal to the ultraviolet lamp.
And a sending module 404, configured to send an additional driving signal to the ultraviolet lamp when the detection determines that the ultraviolet lamp is abnormally turned on.
And a failure determination module 406, configured to determine whether the ultraviolet lamp fails according to the status of the ultraviolet lamp after the additional driving signal is sent.
In one embodiment, the anomaly detection module 402 is further configured to continuously detect the level signal of the ultraviolet lamp for a preset filtering time after sending the lighting control signal to the ultraviolet lamp; and determining whether the ultraviolet lamp is abnormally started or not according to the level signal.
In one embodiment, the anomaly detection module 402 is further configured to determine that the ultraviolet lamp is normally turned on when the level signal is a high level signal; and when the level signal is continuously a low level signal, determining that the ultraviolet lamp is abnormally started.
In one embodiment, the fault determination module 406 is further configured to determine that the ultraviolet lamp is turned on if the level signal of the ultraviolet lamp is detected to be a low level signal within the preset filtering time after the additional driving signal is sent; and if the high level signal of the ultraviolet lamp is detected within the preset filtering time, determining that the ultraviolet lamp is not in fault.
In one embodiment, the failure determination module 406 is further configured to record the current number of times that the additional driving signal is sent; if the level signal of the ultraviolet lamp is detected to be a low level signal continuously in the preset filtering time, comparing the sent times with preset times; when the sent times are less than the preset times, returning to the step of sending an additional driving signal to the ultraviolet lamp; and when the sent times are greater than or equal to the preset times, clearing the sent times and determining the opening fault of the ultraviolet lamp.
In one embodiment, the fault detection device for the ultraviolet lamp of the water purifier further comprises a prompt module, wherein the prompt module is used for generating prompt information when the ultraviolet lamp is determined to be in fault; and playing and/or displaying prompt information, and controlling the indicator lamp to flash so as to remind a user to maintain the ultraviolet lamp.
For specific limitations of the device for detecting the fault of the ultraviolet lamp of the water purifier, reference may be made to the above limitations on the method for detecting the fault of the ultraviolet lamp of the water purifier, which are not described herein again. All modules in the fault detection device of the ultraviolet lamp of the water purifier can be completely or partially realized through software, hardware and a combination thereof. The modules can be embedded in a controller in the water purifier in a hardware form or independent of the controller in the water purifier, and can also be stored in a memory in the water purifier in a software form, so that the controller can call and execute the corresponding operations of the modules.
In one embodiment, a water purifier is provided, and the internal structure thereof can be as shown in fig. 5. The water purifier comprises a controller, a memory, a communication interface, a display screen and an input device which are connected through a system bus. Wherein, the controller of this purifier is used for providing calculation and control ability. The storage of the water purifier comprises a nonvolatile storage medium and an internal storage. The non-volatile storage medium stores an operating system and a computer program. The internal memory provides an environment for the operation of an operating system and computer programs in the non-volatile storage medium. The communication interface of the water purifier is used for carrying out wired or wireless communication with an external terminal, and the wireless communication can be realized through WIFI, an operator network, NFC (near field communication) or other technologies. The computer program is executed by the controller to realize a fault detection method of the ultraviolet lamp of the water purifier. The display screen of the water purifier can be a liquid crystal display screen or an electronic ink display screen, and the input device of the water purifier can be a touch layer covered on the display screen, a key, a track ball or a touch pad arranged on the shell of the water purifier, an external keyboard, a touch pad or a mouse and the like.
It will be understood by those skilled in the art that the configuration shown in fig. 5 is a block diagram of only a portion of the configuration associated with the present application, and does not constitute a limitation on the water purifier to which the present application is applied, and a particular water purifier may include more or less components than those shown, or combine certain components, or have a different arrangement of components.
In one embodiment, there is provided a water purifier, comprising a memory, a controller and an ultraviolet lamp connected to the controller, wherein the memory stores a computer program, and the controller implements the following steps when executing the computer program:
after a lighting control signal is sent to the ultraviolet lamp, whether the ultraviolet lamp is abnormally started or not is detected;
when the ultraviolet lamp is detected and determined to be abnormally opened, an additional driving signal is sent to the ultraviolet lamp;
and determining whether the ultraviolet lamp fails according to the state of the ultraviolet lamp after the additional driving signal is sent.
In one embodiment, the controller when executing the computer program further performs the steps of: after the lighting control signal is sent to the ultraviolet lamp, the level signal of the ultraviolet lamp is continuously detected within the preset filtering time; and determining whether the ultraviolet lamp is abnormally started or not according to the level signal.
In one embodiment, the controller when executing the computer program further performs the steps of: when the level signal is a high level signal, determining that the ultraviolet lamp is normally started; and when the level signal is continuously a low level signal, determining that the ultraviolet lamp is abnormally started.
In one embodiment, the controller when executing the computer program further performs the steps of: after the additional driving signal is sent, if the level signal of the ultraviolet lamp is detected to be a low level signal in the preset filtering time, determining that the ultraviolet lamp is in a starting fault; and if the high level signal of the ultraviolet lamp is detected within the preset filtering time, determining that the ultraviolet lamp is not in fault.
In one embodiment, the controller when executing the computer program further performs the steps of: after the extra driving signal is sent, recording the current sent times; if the level signal of the ultraviolet lamp is detected to be a low level signal continuously in the preset filtering time, comparing the sent times with preset times; when the sent times are less than the preset times, returning to the step of sending an additional driving signal to the ultraviolet lamp; and when the sent times are greater than or equal to the preset times, clearing the sent times and determining the opening fault of the ultraviolet lamp.
In one embodiment, the controller when executing the computer program further performs the steps of: when the ultraviolet lamp is determined to be in fault, generating prompt information; and playing and/or displaying prompt information, and controlling the indicator lamp to flash so as to remind a user to maintain the ultraviolet lamp.
In one embodiment, a computer readable storage medium is provided, having a computer program stored thereon, the computer program, when executed by a controller, implementing the steps of:
after a lighting control signal is sent to the ultraviolet lamp, whether the ultraviolet lamp is abnormally started or not is detected;
when the ultraviolet lamp is detected and determined to be abnormally opened, an additional driving signal is sent to the ultraviolet lamp;
and determining whether the ultraviolet lamp fails according to the state of the ultraviolet lamp after the additional driving signal is sent.
In one embodiment, the computer program when executed by the controller further performs the steps of: after the lighting control signal is sent to the ultraviolet lamp, the level signal of the ultraviolet lamp is continuously detected within the preset filtering time; and determining whether the ultraviolet lamp is abnormally started or not according to the level signal.
In one embodiment, the computer program when executed by the controller further performs the steps of: when the level signal is a high level signal, determining that the ultraviolet lamp is normally started; and when the level signal is continuously a low level signal, determining that the ultraviolet lamp is abnormally started.
In one embodiment, the computer program when executed by the controller further performs the steps of: after the additional driving signal is sent, if the level signal of the ultraviolet lamp is detected to be a low level signal in the preset filtering time, determining that the ultraviolet lamp is in a starting fault; and if the high level signal of the ultraviolet lamp is detected within the preset filtering time, determining that the ultraviolet lamp is not in fault.
In one embodiment, the computer program when executed by the controller further performs the steps of: after the extra driving signal is sent, recording the current sent times; if the level signal of the ultraviolet lamp is detected to be a low level signal continuously in the preset filtering time, comparing the sent times with preset times; when the sent times are less than the preset times, returning to the step of sending an additional driving signal to the ultraviolet lamp; and when the sent times are greater than or equal to the preset times, clearing the sent times and determining the opening fault of the ultraviolet lamp.
In one embodiment, the computer program when executed by the controller further performs the steps of: when the ultraviolet lamp is determined to be in fault, generating prompt information; and playing and/or displaying prompt information, and controlling the indicator lamp to flash so as to remind a user to maintain the ultraviolet lamp.
It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by hardware instructions of a computer program, which can be stored in a non-volatile computer-readable storage medium, and when executed, can include the processes of the embodiments of the methods described above. Any reference to memory, storage, database or other medium used in the embodiments provided herein can include at least one of non-volatile and volatile memory. Non-volatile Memory may include Read-Only Memory (ROM), magnetic tape, floppy disk, flash Memory, optical storage, or the like. Volatile Memory can include Random Access Memory (RAM) or external cache Memory. By way of illustration and not limitation, RAM can take many forms, such as Static Random Access Memory (SRAM) or Dynamic Random Access Memory (DRAM), among others.
The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. A fault detection method for an ultraviolet lamp of a water purifier is characterized by comprising the following steps:
after a lighting control signal is sent to an ultraviolet lamp, detecting whether the ultraviolet lamp is abnormally started or not;
when the ultraviolet lamp is detected and determined to be abnormally opened, sending an additional driving signal to the ultraviolet lamp;
and determining whether the ultraviolet lamp fails according to the state of the ultraviolet lamp after the additional driving signal is sent.
2. The method of claim 1, wherein detecting whether the ultraviolet lamp is abnormally turned on after sending the ignition control signal to the ultraviolet lamp comprises:
after sending a lighting control signal to an ultraviolet lamp, continuously detecting a level signal of the ultraviolet lamp within a preset filtering time;
and determining whether the ultraviolet lamp is abnormally started or not according to the level signal.
3. The method of claim 2, wherein said determining whether the ultraviolet lamp is abnormally turned on based on the level signal comprises:
when the level signal is a high level signal, determining that the ultraviolet lamp is normally started;
and when the level signal is continuously a low level signal, determining that the ultraviolet lamp is abnormally opened.
4. The method of claim 1, wherein said determining whether the ultraviolet lamp is malfunctioning based on the status of the ultraviolet lamp after the additional drive signal is sent comprises:
after the additional driving signal is sent, if the level signal of the ultraviolet lamp is detected to be a low level signal continuously in a preset filtering time, determining that the ultraviolet lamp is in an open fault;
and if the high level signal of the ultraviolet lamp is detected within the preset filtering time, determining that the ultraviolet lamp is not in fault.
5. The method of claim 4, wherein determining that the UV lamp is turned on if the level signal of the UV lamp is detected to be a low level signal for a predetermined filtering time after the additional driving signal is sent comprises:
after the extra driving signal is sent, recording the current sent times;
if the level signal of the ultraviolet lamp is detected to be a low level signal continuously in the preset filtering time, comparing the sent times with preset times;
when the sent times are less than the preset times, returning to the step of sending an additional driving signal to the ultraviolet lamp;
and when the sent times are greater than or equal to the preset times, clearing the sent times and determining the opening fault of the ultraviolet lamp.
6. The method of claim 1, wherein after determining whether the ultraviolet lamp is malfunctioning based on the status of the ultraviolet lamp after receiving the additional drive signal, further comprising:
when the ultraviolet lamp is determined to be in fault, generating prompt information;
and playing and/or displaying the prompt information, and controlling an indicator lamp to flash so as to remind a user to maintain the ultraviolet lamp.
7. A fault detection device of purifier ultraviolet lamp, its characterized in that, the device includes:
the abnormality detection module is used for detecting whether the ultraviolet lamp is abnormally started or not after the illumination control signal is sent to the ultraviolet lamp;
the sending module is used for sending an additional driving signal to the ultraviolet lamp when the ultraviolet lamp is detected to be abnormally opened;
and the fault determining module is used for determining whether the ultraviolet lamp is in fault according to the state of the ultraviolet lamp after the additional driving signal is sent.
8. The apparatus of claim 7, wherein the abnormality detection module is further configured to continuously detect the level signal of the ultraviolet lamp for a preset filtering time after sending the lighting control signal to the ultraviolet lamp; and determining whether the ultraviolet lamp is abnormally started or not according to the level signal.
9. A water purifier comprising a memory, a controller and a UV lamp connected to the controller, the memory storing a computer program, wherein the steps of the method of any one of claims 1 to 6 are performed by the controller when the computer program is executed.
10. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a controller, carries out the steps of the method according to any one of claims 1 to 6.
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