Air conditioner electric leakage detection method and system, storage medium and air conditioner

Abstract

An air conditioner electric leakage detection method comprises the following steps that at the moment when an air conditioner is started, a detection step is started; the detection method comprises the following steps: after a detection signal is received, closing an electric leakage chip; after the preset time, the electric leakage chip is started again, and if no detection signal is detected, the air conditioner does not have electric leakage; if the detection signal is detected, the electric leakage chip is started until the final time is reached, if the detection signal can still be detected when the final time is reached, the defense action is executed, and if the detection signal is not detected before the final time is reached, the air conditioner does not have electric leakage. And further determining whether electric leakage exists or not. In addition, by setting the preset time and the final time, the method provides an enough time window for electric leakage detection, and ensures the comprehensiveness and accuracy of detection. The electric leakage chip is restarted after the preset time, the influence of instantaneous interference signals can be eliminated, and accurate judgment of the electric leakage condition can be ensured by continuous detection in the final time.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioner detection, and in particular to an air conditioner leakage detection method, system, storage medium and air conditioner. Background Art

[0002] In order to ensure the safety of users' electricity use, existing home appliances generally use dedicated leakage chips to detect whether the home appliances have leakage. When the home appliances are working normally, the leakage chip detects the current or voltage of the home appliances to determine whether there is leakage in the home appliances. When leakage is found, the leakage chip will perform corresponding protection measures according to preset actions.

[0003] However, in the structure of the air conditioner, there are compressors, motors and other strong electric equipment inside the outdoor unit. Since the structure of some indoor units is relatively compact, when the air conditioner is started, it will cause induced electricity between the strong electric equipment and the power line. At this time, the leakage chip will determine that the current air conditioner has leakage due to the appearance of induced electricity. For a well-grounded outdoor unit, the induced electricity will gradually disappear over a period of time. Therefore, the leakage detection of the leakage chip is a misjudgment at this time. Frequent misjudgment of leakage will cause household appliances to shut down frequently, greatly reducing the user experience. Therefore, how to solve the false detection of air conditioner leakage has become an urgent problem to be solved. Summary of the invention

[0004] In view of the above-mentioned defects, the purpose of the present invention is to provide an air conditioner leakage detection method, system, storage medium and air conditioner, which are used to solve the problem of misjudgment of leakage of the air conditioner due to induced electricity.

[0005] To achieve this purpose, the present invention adopts the following technical solution: an air conditioner leakage detection method, comprising the following steps:

[0006] Set the preset time and final time;

[0007] Set the defensive action in case of leakage;

[0008] At the moment the air conditioner is started, the detection step is started;

[0009] The detection steps are:

[0010] Acquire a detection signal sent by the leakage chip, and turn off the leakage chip after receiving the detection signal;

[0011] After a preset time, the leakage chip is started again to determine whether a detection signal can still be obtained. If no detection signal is detected, the air conditioner does not have leakage;

[0012] If the detection signal is detected, the leakage chip is started until the final time. If the detection signal can still be detected when the final time is reached, the defense action is performed. If the detection signal is not detected before the final time is reached, there is no leakage in the air conditioner.

[0013] Preferably, the preset time needs to be updated every day, and the updating method of the preset time is as follows:

[0014] Obtain the duration of the detection signal within half a month to obtain a number of durations, group the durations in chronological order to obtain at least five information groups, and obtain the average duration of each information group;

[0015] A judgment function is obtained through the average duration of each group of information groups. If the judgment function is greater than a proportional threshold, a linear relationship is obtained according to the average duration of the information groups, and the next preset time is updated based on the linear relationship;

[0016] If the judgment function is less than the ratio threshold, the average duration of the above group of information groups is used as the next preset time;

[0017] The duration is obtained as follows:

[0018] If no detection signal is detected after the preset time, the duration is the current preset time;

[0019] If the detection signal is detected after the preset time, and the duration of the detection signal does not exceed the final time, the duration is the preset time plus the duration;

[0020] If the detection signal is detected after the final time, the duration is the final time.

[0021] Preferably, the preset time update further includes the following steps:

[0022] A judgment period is set, and if within the judgment period, the judgment function updated every day is greater than the ratio threshold and the difference between the linear relationships obtained on adjacent days is less than the difference threshold, the preset time is reduced by a first threshold, and the preset time update step is closed;

[0023] When the duration is greater than the second threshold, the previous preset time plus the third threshold is taken as the next preset time, and the preset time updating step is started.

[0024] Preferably, the defensive action is to control the relay corresponding to the air conditioner to be disconnected and send leakage information to the bound user.

[0025] An air conditioner leakage detection system, using the air conditioner leakage detection method, comprises a first setting module, a second setting module and a detection module;

[0026] The first setting module is used to set the preset time and the final time;

[0027] The second setting module is used to set the protection action in case of leakage;

[0028] The detection module is used to obtain a detection signal sent by the leakage chip, and turn off the leakage chip after receiving the detection signal;

[0029] After a preset time, the leakage chip is started again to determine whether a detection signal can still be obtained. If no detection signal is detected, there is no leakage in the air conditioner, and the leakage chip is turned off;

[0030] If the detection signal is detected, the leakage chip is detected until the final time. If during this period, the duration of the detection signal exceeds the time threshold, or the detection signal can still be detected at the final time, a defensive action is performed.

[0031] Preferably, it also includes a preset time update module;

[0032] The preset time update module is used to obtain the duration of the detection signal within half a month, obtain a number of duration information, group the duration information in chronological order, obtain at least five groups of information groups, and obtain the average duration of each group of information groups;

[0033] A judgment function is obtained through the average duration of each group of information groups. If the judgment function is greater than a proportional threshold, a linear relationship is obtained according to the average duration of the information groups, and the next preset time is updated based on the linear relationship;

[0034] If the judgment function is less than the ratio threshold, the average duration of the previous group of information groups is used as the next preset time.

[0035] Preferably, it also includes a preset time adjustment module;

[0036] The time adjustment module is used to set a judgment period. If, within the judgment period, the judgment function updated every day is greater than the ratio threshold and the difference between the linear relationships obtained on adjacent days is less than the difference threshold, the preset time is reduced by a first threshold and the preset time update module is closed;

[0037] When the duration is greater than the second threshold, the previous preset time plus the third threshold is taken as the next preset time, and the preset time updating module is started.

[0038] A computer-readable storage medium stores a computer program which, when executed by a processor, implements the steps of the air-conditioner leakage detection method.

[0039] An air conditioner comprises the air conditioner leakage detection method.

[0040] One of the above technical solutions has the following advantages or beneficial effects: The present invention starts the leakage chip twice for detection, which effectively avoids the misjudgment caused by induced electricity in a single detection. After the first detection, if a leakage signal is detected, a second detection is performed to further confirm whether there is a leakage. In addition, by setting the preset time and the final time, the present invention provides a sufficient time window for leakage detection to ensure the comprehensiveness and accuracy of the detection. Restarting the leakage chip after the preset time can eliminate the influence of instantaneous interference signals, and continuous detection within the final time can ensure accurate judgment of the leakage situation. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1 is a flow chart of an embodiment of the method of the present invention.

[0042] Figure 2 It is a schematic diagram of the structure of an embodiment of the system of the present invention. DETAILED DESCRIPTION

[0043] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals represent the same or similar elements or elements having the same or similar functions from beginning to end. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0044] In the description of the embodiments of the present invention, the terms "first" and "second" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0045] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, the meaning of "plurality" is two or more. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0046] like Figures 1-2 As shown, a method for detecting leakage of an air conditioner comprises the following steps:

[0047] Set the preset time and final time;

[0048] Set the defensive action in case of leakage;

[0049] At the moment the air conditioner is started, the detection step is started;

[0050] The detection steps are:

[0051] Acquire a detection signal sent by the leakage chip, and turn off the leakage chip after receiving the detection signal;

[0052] After a preset time, the leakage chip is started again to determine whether a detection signal can still be obtained. If no detection signal is detected, the air conditioner does not have leakage;

[0053] If the detection signal is detected, the leakage chip is started until the final time. If the detection signal can still be detected when the final time is reached, the defense action is performed. If the detection signal is not detected before the final time is reached, there is no leakage in the air conditioner.

[0054] In the present invention, in order to avoid the occurrence of leakage misjudgment due to the occurrence of induced electricity. When the leakage chip in the present invention sends a detection signal, no defensive action will be performed, but the leakage chip will be turned off first to reduce additional energy consumption. After waiting for a preset time, the leakage chip is started again, and it is determined whether the detection signal can still be obtained. If the leakage signal is not detected, it means that the induced electricity has been small, and the information currently detected by the leakage chip is normal circuit information, so no leakage occurs at this time. If the detection signal is detected, there are two situations at this time. One is that the induced electricity has not disappeared and is still affecting the detection of the leakage chip. The second situation is that the air conditioner is really leaking. For this reason, it is necessary to extend the detection time at this time, and extend the detection time to the final time. Generally, the induced electricity will disappear within the final time. If the detection signal can still be detected when the final time is reached, it means that the detection signal sent by the leakage chip is caused by leakage, not by induced electricity. At this time, a defensive action can be performed to ensure the safety of the user.

[0055] The present invention starts the leakage chip twice for detection, effectively avoiding the misjudgment caused by induced electricity in a single detection. After the first detection, if a leakage signal is detected, a second detection is performed to further confirm whether there is a leakage. In addition, by setting a preset time and a final time, the present invention provides a sufficient time window for leakage detection to ensure the comprehensiveness and accuracy of the detection. Restarting the leakage chip after the preset time can eliminate the influence of instantaneous interference signals, and continuous detection within the final time can ensure accurate judgment of the leakage situation.

[0056] Preferably, the preset time needs to be updated every day, and the updating method of the preset time is as follows:

[0057] Obtain the duration of the detection signal within half a month to obtain a number of durations, group the durations in chronological order to obtain at least five information groups, and obtain the average duration of each information group;

[0058] A judgment function is obtained through the average duration of each group of information groups. If the judgment function is greater than a proportional threshold, a linear relationship is obtained according to the average duration of the information groups, and the next preset time is updated based on the linear relationship;

[0059] If the judgment function is less than the ratio threshold, the average duration of the above group of information groups is used as the next preset time;

[0060] The duration is obtained as follows:

[0061] If no detection signal is detected after the preset time, the duration is the current preset time;

[0062] If the detection signal is detected after the preset time, and the duration of the detection signal does not exceed the final time, the duration is the preset time plus the duration;

[0063] If the detection signal is detected after the final time, the duration is the final time.

[0064] In the present invention, the length of the preset time setting may be related to the length of time the leakage chip continues to operate in the future. When the preset time setting is longer, the leakage chip will continue to operate for a shorter time in the future, but the detection strength of leakage will be smaller. When the preset time setting is shorter, the leakage chip will increase the detection strength, but its subsequent continuous working time will be longer. The time when the induced electricity disappears normally will also change with the change of environmental humidity. In order to better balance the time when the leakage chip is turned off and on, the preset time is set to a mode that updates the setting every day.

[0065] When updating the preset time, the duration of each day in the previous 15 days will be obtained. For example, in the previous first day, the preset time is 15S. After the preset time is started, no detection signal is detected. At this time, the duration of the previous first day is 15S. In the previous second day, the preset time is also 15S, and the final time is 40S. No predicted signal is detected 15S after the preset time, so the duration of the previous second day is 15S+15S=30S. In the previous third day, at the final time, the detection signal can still be detected. The duration of the third day is 40S, and so on to obtain the duration in the previous 15 days.

[0066] The change in duration is equivalent to the duration of the induced electricity. Therefore, the preset time can be determined by the duration, so that the sensing chip can quickly sense the detection signal after the preset time, thereby reducing the working time of the sensing chip. In one embodiment of the present invention, the duration of 15 days is grouped, and then the average duration of each information group is obtained to reduce the amount of data processing and speed up the calculation of the preset time. The average duration of each group is then input into the judgment model to obtain the judgment data. Taking the 15-day duration as an example, the judgment model is:

[0067]

[0068] Among them A 1i is the duration of the ith item in the first group, is the average duration of the first group; when the judgment function is close to 1, it means that the linear relationship between the group data will be stronger, and the ratio threshold is set to 0.9. When the judgment function is greater than 0.9, the five groups of average durations can be interpolated linearly to obtain the corresponding linear equation. The linear relationship can be immediately obtained through the linear equation. The next duration can be inferred through the linear relationship, and the inferred next duration is used as the next preset time.

[0069] Of course, sometimes due to environmental reasons, the duration may change suddenly, causing the judgment function to be less than the proportional threshold. At this time, the next duration cannot be determined through a linear relationship. At this time, the average duration of the previous group of information groups can only be used as the next preset time. This setting can avoid prediction errors caused by excessive adjustment, making the next preset time more stable.

[0070] Preferably, the preset time update further includes the following steps:

[0071] A judgment period is set, and if within the judgment period, the judgment function updated every day is greater than the ratio threshold and the difference between the linear relationships obtained on adjacent days is less than the difference threshold, the preset time is reduced by a first threshold, and the preset time update step is closed;

[0072] When the duration is greater than the second threshold, the previous preset time plus the third threshold is taken as the next preset time, and the preset time updating step is started.

[0073] When the updated judgment functions are all greater than the ratio threshold and the differences between the linear relationships obtained on adjacent days are all less than the difference threshold, it means that the duration is relatively stable and the difference between the durations of adjacent days is also relatively small. The preset time can be relatively appropriately reduced to detect in advance whether there is still a detection signal, so as to shut down the leakage chip in advance and save unnecessary energy consumption. Of course, when the preset time is reduced by the first threshold, it will inevitably cause a change in the duration in the information group. In order to avoid unnecessary updates, after the preset time is reduced by the first threshold, the preset time update step will be closed;

[0074] Of course, we still pay attention to the value of the duration, and when the duration is greater than the second threshold, it means that the duration has skyrocketed. At this time, the third threshold is used to supplement the previous preset time, so that the next preset time can be longer, thereby delaying the time for re-detection. At this time, due to the change in the duration, it is necessary to restart the preset time update step.

[0075] Preferably, the defensive action is to control the relay corresponding to the air conditioner to be disconnected and send leakage information to the bound user.

[0076] An air conditioner leakage detection system, using the air conditioner leakage detection method, comprises a first setting module, a second setting module and a detection module;

[0077] The first setting module is used to set the preset time and the final time;

[0078] The second setting module is used to set the protection action in case of leakage;

[0079] The detection module is used to obtain a detection signal sent by the leakage chip, and turn off the leakage chip after receiving the detection signal;

[0080] After a preset time, the leakage chip is started again to determine whether a detection signal can still be obtained. If no detection signal is detected, there is no leakage in the air conditioner, and the leakage chip is turned off;

[0081] If the detection signal is detected, the leakage chip is detected until the final time. If during this period, the duration of the detection signal exceeds the time threshold, or the detection signal can still be detected at the final time, a defensive action is performed.

[0082] Preferably, it also includes a preset time update module;

[0083] The preset time update module is used to obtain the duration of the detection signal within half a month, obtain a number of duration information, group the duration information in chronological order, obtain at least five groups of information groups, and obtain the average duration of each group of information groups;

[0084] A judgment function is obtained through the average duration of each group of information groups. If the judgment function is greater than a proportional threshold, a linear relationship is obtained according to the average duration of the information groups, and the next preset time is updated based on the linear relationship;

[0085] If the judgment function is less than the ratio threshold, the average duration of the previous group of information groups is used as the next preset time.

[0086] Preferably, it also includes a preset time adjustment module;

[0087] The time adjustment module is used to set a judgment period. If, within the judgment period, the judgment function updated every day is greater than the ratio threshold and the difference between the linear relationships obtained on adjacent days is less than the difference threshold, the preset time is reduced by a first threshold and the preset time update module is closed;

[0088] When the duration is greater than the second threshold, the previous preset time plus the third threshold is taken as the next preset time, and the preset time updating module is started.

[0089] A computer-readable storage medium stores a computer program which, when executed by a processor, implements the steps of the air-conditioner leakage detection method.

[0090] An air conditioner comprises the air conditioner leakage detection method.

[0091] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0092] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A method for detecting leakage of an air conditioner, characterized in that: The steps include: Set the preset time and final time; Set the defensive action in case of leakage; At the moment the air conditioner is started, the detection step is started; The detection steps are: Acquire a detection signal sent by the leakage chip, and turn off the leakage chip after receiving the detection signal; After a preset time, the leakage chip is started again to determine whether a detection signal can still be obtained. If no detection signal is detected, the air conditioner does not have leakage; If the detection signal is detected, the leakage chip is started until the final time. If the detection signal can still be detected when the final time is reached, the defense action is performed. If the detection signal is not detected before the final time is reached, there is no leakage in the air conditioner.

2. The method for detecting leakage of an air conditioner according to claim 1, characterized in that: The preset time needs to be updated every day, and the updating method of the preset time is as follows: Obtain the duration of the detection signal within half a month to obtain a number of durations, group the durations in chronological order to obtain at least five information groups, and obtain the average duration of each information group; A judgment function is obtained through the average duration of each group of information groups. If the judgment function is greater than a proportional threshold, a linear relationship is obtained according to the average duration of the information groups, and the next preset time is updated based on the linear relationship; If the judgment function is less than the ratio threshold, the average duration of the above group of information groups is used as the next preset time; The duration is obtained as follows: If no detection signal is detected after the preset time, the duration is the current preset time; If the detection signal is detected after the preset time, and the duration of the detection signal does not exceed the final time, the duration is the preset time plus the duration; If the detection signal is detected after the final time, the duration is the final time.

3. The method for detecting leakage of an air conditioner according to claim 2, characterized in that: The preset time update also includes the following steps: A judgment period is set, and if within the judgment period, the judgment function updated every day is greater than the ratio threshold and the difference between the linear relationships obtained on adjacent days is less than the difference threshold, the preset time is reduced by a first threshold, and the preset time update step is closed; When the duration is greater than the second threshold, the previous preset time plus the third threshold is taken as the next preset time, and the preset time updating step is started.

4. The method for detecting leakage of an air conditioner according to claim 1, characterized in that: The defensive action is to control the relay corresponding to the air conditioner to disconnect and send leakage information to the bound user.

5. An air conditioner leakage detection system, using an air conditioner leakage detection method according to any one of claims 1 to 4, characterized in that: It includes a first setting module, a second setting module and a detection module; The first setting module is used to set the preset time and the final time; The second setting module is used to set the protection action in case of leakage; The detection module is used to obtain a detection signal sent by the leakage chip, and turn off the leakage chip after receiving the detection signal; After a preset time, the leakage chip is started again to determine whether a detection signal can still be obtained. If no detection signal is detected, there is no leakage in the air conditioner, and the leakage chip is turned off; If the detection signal is detected, the leakage chip is detected until the final time. If during this period, the duration of the detection signal exceeds the time threshold, or the detection signal can still be detected at the final time, a defensive action is performed.

6. An air conditioner leakage detection system according to claim 5, characterized in that: Also includes a preset time update module; The preset time update module is used to obtain the duration of the detection signal within half a month, obtain a number of duration information, group the duration information in chronological order, obtain at least five groups of information groups, and obtain the average duration of each group of information groups; A judgment function is obtained through the average duration of each group of information groups. If the judgment function is greater than a proportional threshold, a linear relationship is obtained according to the average duration of the information groups, and the next preset time is updated based on the linear relationship; If the judgment function is less than the ratio threshold, the average duration of the previous group of information groups is used as the next preset time.

7. An air conditioner leakage detection system according to claim 6, characterized in that: Also includes a preset time adjustment module; The time adjustment module is used to set a judgment period. If, within the judgment period, the judgment function updated every day is greater than the ratio threshold and the difference between the linear relationships obtained on adjacent days is less than the difference threshold, the preset time is reduced by a first threshold and the preset time update module is closed; When the duration is greater than the second threshold, the previous preset time plus the third threshold is taken as the next preset time, and the preset time updating module is started.

8. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the program is executed by a processor, the steps of the air conditioner leakage detection method according to any one of claims 1 to 4 are implemented.

9. An air conditioner, characterized in that: It comprises the air conditioner leakage detection method according to any one of claims 1 to 4.

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