Monitoring method, monitoring device and water heater

Abstract

The embodiment of the invention provides a monitoring method, a monitoring device and a water heater, the service life of an anode bar can be monitored, a user can replace the anode bar in time conveniently, and the anode bar can be prevented from being replaced in advance or later. The monitoring method comprises the steps of determining charge quantity Q generated by a loop where an anode bar is located; the theoretical corrosion mass m of the anode bar is determined according to the charge quantity Q generated by the loop where the anode bar is located; determining the service life of the anode bar according to the theoretical corrosion quality m of the anode bar.

Description

Technical Field

[0001] The present application relates to but is not limited to the technical field of water heaters, and specifically refers to a monitoring method, a monitoring device and a water heater. Background Art

[0002] The corrosion of the inner tank of the water heater is a spontaneous process. Traditional inner tank corrosion protection technologies, such as physical magnesium rods, act as anodes (i.e., as anode rods) during operation, sacrificing themselves to protect the inner tank. However, the traditional physical magnesium rod is directly connected to the inner tank. During the operation of the magnesium rod, the user does not know when to replace the magnesium rod, which will cause the user to replace the physical magnesium rod in advance or delay. Replacing the magnesium rod in advance will cause a considerable amount of waste; delaying the replacement of the magnesium rod will aggravate the corrosion of the inner tank and reduce the user experience. Summary of the invention

[0003] The technical problem to be solved by the present application is to provide a monitoring method, a monitoring device and a water heater, which can monitor the life of the anode rod, facilitate the user to replace the anode rod in time, and help avoid premature or delayed replacement of the anode rod.

[0004] To this end, an embodiment of the present application provides a monitoring method for monitoring the life of an anode rod, the monitoring method comprising:

[0005] Determine the charge Q generated by the circuit where the anode rod is located;

[0006] Determine the theoretical corrosion mass m of the anode rod according to the charge Q generated by the circuit where the anode rod is located;

[0007] The life of the anode rod is determined according to the theoretical corrosion mass m of the anode rod.

[0008] Through the monitoring method provided in the embodiment of the present application, the water heater can be equipped with the function of monitoring the life of the anode rod, which is convenient for the user to replace the anode rod in time. This is beneficial to avoid the waste caused by premature replacement of the anode rod, and also beneficial to avoid the aggravated corrosion of the inner tank caused by delayed replacement of the anode rod, thereby improving the user experience and being consistent with the concept of smart home appliances.

[0009] Based on the above technical solution, the present application can also be improved as follows.

[0010] In an exemplary embodiment, the determining the amount of charge Q generated by the loop where the anode rod is located includes: regularly determining the amount of charge Q generated by the loop where the anode rod is located within a reference time length ts;

[0011] The method of determining the theoretical corrosion mass m of the anode rod according to the charge Q generated in the loop where the anode rod is located comprises: calculating the theoretical corrosion mass m of the anode rod in the reference time length ts according to the charge Q generated in the loop where the anode rod is located in the reference time length ts, where m=Q×M / (b×e×N A ), where M represents the molar mass of the material of the anode rod; b represents the number of electrons generated by the corrosion of one atom of the anode rod; e represents the absolute value of the charge of a single electron; N A represents Avogadro's constant;

[0012] Determining the life of the anode rod according to the theoretical corrosion mass m of the anode rod comprises:

[0013] According to the theoretical corrosion mass m of the anode rod determined regularly within the reference time length ts, the theoretical total corrosion mass mz of the anode rod is calculated; wherein, p represents: the total number of the reference time length ts during the period from the start of use of the anode rod to the current moment; mi represents: the theoretical corrosion quality of the anode rod determined according to the charge amount Qi generated by the circuit where the anode rod is located during the i-th reference time length ts;

[0014] The life of the anode rod is determined according to the theoretical total corrosion mass mz of the anode rod.

[0015] In an exemplary embodiment, the monitoring method further comprises:

[0016] The reference time length ts is adjusted according to the life of the anode rod.

[0017] In an exemplary embodiment, the ts is positively correlated with the remaining life of the anode rod.

[0018] In an exemplary embodiment, the remaining life of the anode rod is characterized by a remaining mass percentage η;

[0019] Determining the life of the anode rod according to the theoretical total mass of corrosion mz of the anode rod comprises: determining the remaining mass percentage η of the anode rod according to the theoretical total mass of corrosion mz of the anode rod and the initial mass m0 of the anode rod, η=(m0-mz) / m0×100%;

[0020] The adjusting the reference time length ts according to the life of the anode rod includes: adjusting the reference time length ts according to the remaining mass percentage η of the anode rod.

[0021] In an exemplary embodiment, adjusting the reference time length ts according to the remaining mass percentage η of the anode rod includes:

[0022] Based on η>η1, ts=ts1;

[0023] Based on η2<η≤η1, ts=ts2;

[0024] Among them, η1 is the first set percentage, η2 is the second set percentage, ts1 is the first set time length, ts2 is the second set time length, 0<η2<η1, 0<ts2<ts1.

[0025] In an exemplary embodiment, the monitoring method further includes:

[0026] Detecting and recording the current value generated by the circuit where the anode rod is located;

[0027] Based on 0<η≤η2, whether the anode rod is failed is determined according to the current value generated in the loop where the anode rod is located, and η2 is a second set percentage.

[0028] In an exemplary embodiment, judging whether the anode rod is failed according to the current value generated in the loop where the anode rod is located includes:

[0029] Whether the anode rod is failed is determined based on Imax and Imin; wherein Imax represents the maximum current value of the circuit where the anode rod is located during the time period from the moment η=η2 to the current moment; and Imin represents the minimum current value of the circuit where the anode rod is located during the time period from the initial use of the anode rod to the moment η=η1.

[0030] In an exemplary embodiment, judging whether the anode rod is failed according to Imax and Imin includes:

[0031] Based on Imax<a×Imin, the anode rod is determined to be failed, where a is a coefficient, 0<a≤1;

[0032] Based on Imax≥a×Imin, it is determined that the anode rod is not failed.

[0033] In an exemplary embodiment, the monitoring method further includes:

[0034] Based on the failure of the anode rod, issuing a reminder message;

[0035] Based on the fact that the anode rod has not failed, the life of the anode rod is shown.

[0036] In an exemplary embodiment, determining the amount of charge Q generated by the loop where the anode rod is located within a reference time length ts includes:

[0037] Detecting and recording the corrosion current values ​​generated at different times in the circuit where the anode rod is located within the reference time length ts;

[0038] The charge Q generated by the anode rod loop within the reference time ts is calculated. Among them, I n Indicates the time T of the anode rod loop within the reference time ts n Current value, n≥0.

[0039] In an exemplary embodiment, the life of the anode rod is characterized by a remaining mass percentage.

[0040] An embodiment of the present application further provides a monitoring device, including a processor and a memory storing a computer program, wherein when the processor executes the computer program, the steps of the monitoring method as described in any one of the above embodiments are implemented.

[0041] An embodiment of the present application also provides a water heater, comprising: an inner tank; an anode rod inserted into the inner tank and electrically connected to the inner tank to form a loop; and a monitoring device as described in the above embodiment, connected to the loop and configured to monitor the life of the anode rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1 A schematic diagram of a partial structure of a water heater provided in some embodiments of the present application;

[0043] Figure 2 A schematic diagram of a monitoring method provided in some embodiments of the present application;

[0044] Figure 3 It is a curve diagram showing the current value generated by the circuit where the anode rod is located changing with time over a period of time;

[0045] Figure 4 A flowchart of a monitoring method provided in accordance with an embodiment of the present application.

[0046] Figure 1 The parts represented by the various reference numerals are listed as follows:

[0047] 1 anode rod, 2 inner tank, 3 insulating parts, 4 connecting lines, 5 monitoring device. DETAILED DESCRIPTION

[0048] The principles and features of the present application are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present application and are not used to limit the scope of the present application.

[0049] The embodiment of the present application provides a monitoring method for monitoring the life of an anode rod 1. The anode rod 1 may be, but is not limited to, a physical magnesium rod, and the anode rod 1 may be used for, but is not limited to, protecting an inner tank 2 of a water heater. Taking a water heater as an example, the water heater includes an inner tank 2 and an anode rod 1. Figure 1 As shown, the anode rod 1 can be inserted into the inner tank 2 and electrically connected to the inner tank 2 to form an electrical circuit. The insertion portion of the anode rod 1 and the inner tank 2 is insulated by an insulating member 3, and the anode rod 1 and the inner tank 2 are electrically connected by a connecting line 4. The anode rod 1 can corrode, undergo an oxidation reaction, and transport electrons to the inner tank 2 to prevent the inner tank 2 from corroding.

[0050] like Figure 2 As shown, monitoring methods include:

[0051] Step S102: determining the charge amount Q generated by the circuit where the anode rod is located;

[0052] Step S104: determining the theoretical corrosion mass m of the anode rod according to the charge Q generated by the circuit where the anode rod is located;

[0053] Step S106: Determine the life of the anode rod according to the theoretical corrosion mass m of the anode rod.

[0054] The number of electrons delivered to the inner tank when the anode rod corrodes is related to the theoretical corrosion mass of the anode rod and the amount of charge generated by the circuit in which the anode rod is located. Taking the anode rod as an example, for each magnesium atom corroded by the magnesium rod, two electrons are delivered to the inner tank and one Mg is input into the solution. 2+ , the mass of the anode rod decreases by the mass of one magnesium atom. The corrosion mass of the anode rod is related to the life of the anode rod. As the corrosion mass of the anode rod increases, the remaining life of the anode rod gradually decreases. Therefore, by determining the amount of charge generated in the circuit where the anode rod is located, the theoretical corrosion mass of the anode rod can be determined, and then based on the theoretical corrosion mass of the anode rod, the life of the anode rod can be determined.

[0055] Therefore, through the monitoring method provided in the embodiment of the present application, the water heater can have the function of monitoring the life of the anode rod, which is convenient for the user to replace the anode rod in time. This is beneficial to avoid the waste caused by premature replacement of the anode rod, and also beneficial to avoid delayed replacement of the anode rod resulting in aggravated corrosion of the inner tank, thereby improving the user experience and being consistent with the concept of smart home appliances.

[0056] In some exemplary embodiments, the life of the anode rod is characterized by the remaining mass percentage, such as Figure 4 shown.

[0057] Of course, the life of the anode rod is not limited to being represented by the remaining mass percentage, but may also be represented by the consumed mass percentage, or by a progress bar or other methods.

[0058] In some exemplary embodiments, the monitoring method further comprises: issuing a prompt message for prompting the life of the anode rod.

[0059] The prompt information may be, but is not limited to, a light signal or an acoustic signal, such as displaying the life of the anode rod (e.g., via a display screen / main control screen, such as Figure 4 As shown in FIG. 1 , the life of the anode rod can be announced by voice (for example, by a voice announcer). Alternatively, a prompt message can be sent to a mobile terminal (such as a mobile phone APP) to display the life of the anode rod on the mobile terminal.

[0060] In some exemplary embodiments, determining the amount of charge Q generated by the loop where the anode rod is located includes: periodically determining the amount of charge Q generated by the loop where the anode rod is located within a reference time length ts.

[0061] The theoretical corrosion mass m of the anode rod is determined according to the charge Q generated in the circuit where the anode rod is located, including: according to the charge Q generated in the circuit where the anode rod is located in the reference time ts, the theoretical corrosion mass m of the anode rod in the reference time ts is calculated, m=Q×M / (b×e×N A ).

[0062] Where M represents the molar mass of the material of the anode rod; b represents the number of electrons generated by the corrosion of one atom of the anode rod; e represents the absolute value of the charge of a single electron; N A represents Avogadro's constant.

[0063] The life of the anode rod is determined based on the theoretical corrosion mass m of the anode rod, including:

[0064] According to the theoretical corrosion mass m of the anode rod determined regularly within the reference time ts, the theoretical total corrosion mass mz of the anode rod is calculated; where: p represents: the total number of reference time lengths ts during the period from the start of use of the anode rod to the current moment; mi represents: the theoretical corrosion quality of the anode rod determined by the charge amount Qi generated by the circuit where the anode rod is located during the i-th reference time length ts;

[0065] The life of the anode rod is determined based on the theoretical total corrosion mass mz of the anode rod.

[0066] Since the service life of the anode rod is usually relatively long, if the theoretical corrosion mass of the anode rod is determined in real time, the amount of calculation will be too large. Therefore, this scheme calculates the theoretical corrosion mass m of the anode rod within the reference time ts by regularly determining the charge Q generated by the circuit where the anode rod is located within the reference time ts. By accumulating and summing the theoretical corrosion mass of the anode rod within each reference time ts, the theoretical total corrosion mass mz of the anode rod can be obtained, and then the life of the anode rod can be obtained. This is conducive to reducing the amount of calculation and simplifying the electronic control program.

[0067] Taking the anode rod as a magnesium rod as an example, b = 2. For the convenience of calculation, e can be taken as an approximate value of 1.6×10-19 C, N A The approximate value can be 6.02×10 23 .

[0068] In some exemplary embodiments, determining the charge amount Q generated by the loop where the anode rod is located within the reference time length ts includes:

[0069] Detect and record the corrosion current values ​​generated at different times in the circuit where the anode rod is located within the reference time ts;

[0070] Calculate the charge Q generated by the anode rod circuit within the reference time ts. Among them, I n Indicates the time T when the anode rod is in the circuit within the reference time ts n The current value of the anode rod circuit is equal to the corrosion current of the anode rod. The corrosion current indicates the corrosion current value generated by the material during the corrosion process. The current value generated by the anode rod circuit can be detected by the current detection element, and the current detection element can be connected in series in the connection line between the anode rod and the inner tank.

[0071] In other words, by detecting the T of the loop formed by the anode rod and the inner tank within the reference time ts 0 , T 1 ,…,T n , T n+1 The current value corresponding to the time point I 0 ,I 1 ,I 2 ,…,I n ,I n+1 , the total charge generated in the reference time ts (for example, one day) can be calculated as Q = (I 1 +I 0 )(T 1 -T 0 ) / 2+(I 2 +I 1 )(T 2 -T 1 ) / 2+(I 3 +I 2 )(T 3 -T 2 ) / 2+…+(I n+1 +I n )(T n+1 -T n ) / 2.

[0072] For example: when n = 0, Q = (I 1 +I 0 )(T 1 -T0 ) / 2.

[0073] When n=1, Q=(I 1 +I 0 )(T 1 -T 0 ) / 2+(I 2 +I 1 )(T 2 -T 1 ) / 2.

[0074] When n=2, Q=(I 1 +I 0 )(T 1 -T 0 ) / 2+(I 2 +I 1 )(T 2 -T 1 ) / 2+(I 3 +I 2 )(T 3 -T 2 ) / 2.

[0075] When n=3, Q=(I 1 +I 0 )(T 1 -T 0 ) / 2+(I 2 +I 1 )(T 2 -T 1 ) / 2+(I 3 +I 2 )(T 3 -T 2 ) / 2+(I 4 +I 3 )(T 4 -T 3 ) / 2.

[0076] The size of n can be reasonably determined based on the size of ts. The interval T between adjacent moments within the reference time length ts n+1 -T n , can be equal or unequal. T n+1 -T n The smaller it is, the more accurate the calculated charge Q is. Figure 3 As shown in the figure, the curve of the corrosion current of the anode rod changing with time over a period of time is as follows Figure 3 As shown, the adjacent time T n+1 With T n The amount of charge generated between Tn-Tn+1 =(I n+1 +I n)(T n+1 -T n ) / 2. Therefore, the total charge amount Q within the reference time length ts = (I 1 +I 0 )(T 1 -T 0 ) / 2+(I 2 +I 1 )(T 2 -T 1 ) / 2+(I 3 +I 2 )(T 3 -T 2 ) / 2+…+(I n+1 +I n )(T n+1 -T n ) / 2.

[0077] Of course, the amount of charge generated by the circuit where the anode rod is located within the reference time length ts may also be detected directly by a detection element capable of detecting the amount of charge.

[0078] In some exemplary embodiments, the monitoring method further includes: adjusting the reference time length ts according to the life of the anode rod.

[0079] In other words, the reference time ts is not fixed, but can change with the life of the anode rod. In this way, the reference time can be adjusted accordingly with the life of the anode rod, so as to match it with different periods of the anode rod use process, which is beneficial to avoid the calculation amount being too large due to the reference time being too short in the early stage of the anode rod use, and also to avoid the failure to timely discover the failure of the magnesium rod due to the reference time being too long in the later stage of the anode rod use.

[0080] In some exemplary embodiments, ts is positively correlated with the remaining life of the anode rod.

[0081] In other words, the longer the remaining life of the anode rod, the longer the reference time, which helps to reduce the amount of calculation in the early stage of the use of the anode rod; the shorter the remaining life of the anode rod, the shorter the reference time, which helps to avoid the failure of the magnesium rod being discovered in time due to the long reference time in the later stage of the use of the anode rod.

[0082] Of course, the reference time ts may also be negatively correlated with the consumed life of the anode rod, that is, the longer the consumed life, the shorter the reference time; and the shorter the consumed life, the longer the reference time.

[0083] In some exemplary embodiments, the remaining life of the anode rod is characterized by a remaining mass percentage η.

[0084] The life of the anode rod is determined according to the theoretical total corrosion mass mz of the anode rod, including: determining the remaining mass percentage η of the anode rod according to the theoretical total corrosion mass mz of the anode rod and the initial mass m0 of the anode rod, η=(m0-mz) / m0×100%.

[0085] Adjusting the reference time length ts according to the life of the anode rod includes: adjusting the reference time length ts according to the remaining mass percentage η of the anode rod.

[0086] It is relatively simple and intuitive to use the remaining mass percentage to represent the remaining life of the anode rod. Of course, the remaining life of the anode rod can also be represented by the remaining time, progress bar or other methods.

[0087] In some exemplary embodiments, adjusting the reference time ts according to the remaining mass percentage η of the anode rod includes:

[0088] Based on η>η1, ts=ts1;

[0089] Based on η2<η≤η1, ts=ts2.

[0090] Among them, η1 is the first set percentage, η2 is the second set percentage, ts1 is the first set time length, ts2 is the second set time length, 0<η2<η1, 0<ts2<ts1.

[0091] In other words, when the remaining mass percentage of the anode rod is greater than the first set percentage, the reference time length is unified to the first set time length. When the remaining mass percentage of the anode rod is greater than the second set percentage and less than or equal to the first set percentage, the reference time length is unified to the second set time length. This is conducive to further simplifying the electrical control program of the water heater.

[0092] Among them, the first set percentage, the second set percentage, the first reference duration, and the second reference duration can be determined according to the corrosion characteristics of the anode rod throughout the life cycle. Taking the anode rod as a magnesium rod as an example, the first set percentage can be but not limited to 30% to 50%, such as 30%, 35%, 40%, 45%, 50%, etc., and of course the first set percentage can also be greater than 50% or less than 30%. The second set percentage can be but not limited to 5% to 15%, such as 5%, 8%, 10%, 12%, 15%, etc. Of course, the second set percentage can also be greater than 15% or less than 5%. The first reference duration can be but not limited to greater than or equal to one day, such as one day, one week, or one month. The second reference duration can be but not limited to less than or equal to one day, such as one day, half a day, one hour, etc.

[0093] Of course, the way in which the reference duration ts is adjusted with η is not limited to the above scheme. For example, η can be divided into more levels, and accordingly, ts can be assigned with more levels. Alternatively, ts and η can also satisfy a certain relationship, and ts can be obtained by calculation.

[0094] In some exemplary embodiments, the monitoring method further comprises:

[0095] Detect and record the current value generated by the circuit where the anode rod is located;

[0096] Based on 0<η≤η2, whether the anode rod is failed is determined according to the current value generated in the loop where the anode rod is located.

[0097] The current value generated by the circuit where the anode rod is located is related to the remaining life of the anode rod. When the current value generated by the circuit where the anode rod is located is relatively large, it indicates that the anode rod can still work for a period of time, so there is a certain remaining life. When the current value generated by the circuit where the anode rod is located is relatively small, it indicates that the anode rod can basically not generate corrosion current, and thus the protective effect on the inner tank is very small, which indicates that the remaining life of the anode rod is basically gone, and it can be determined that the anode rod has failed.

[0098] When the remaining life of the anode rod is less than or equal to the second set percentage, it indicates that the remaining life of the anode rod is relatively short. Therefore, at this time, the failure of the anode rod is judged based on the current value generated by the circuit where the anode rod is located, so as to make full use of the anode rod and avoid delaying the replacement of the anode rod as much as possible.

[0099] In some exemplary embodiments, judging whether the anode rod is failed according to the current value generated in the loop where the anode rod is located includes:

[0100] Determine whether the anode rod is failed based on Imax and Imin.

[0101] Wherein, Imax represents the maximum current value of the anode rod circuit in the time period from the moment η=η2 to the current moment. Imin represents the minimum current value of the anode rod circuit in the time period from the initial use of the anode rod to the moment η=η1.

[0102] During the period from the initial use to the time when η=η1, the current in the circuit where the anode rod is located is relatively large. After the time when η=η1, the current in the circuit where the anode rod is located is relatively small. By comparing Imax and Imin, it is convenient to reasonably judge whether the anode rod has failed.

[0103] In some embodiments, judging whether the anode rod is failed according to Imax and Imin includes:

[0104] Based on Imax<a×Imin, it is determined that the anode rod is failed.

[0105] Based on Imax≥a×Imin, it is determined that the anode rod is not failed.

[0106] Wherein, a is a coefficient, 0<a≤1, a can be but is not limited to 0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9, etc.

[0107] In some exemplary embodiments, the monitoring method further comprises:

[0108] Issue a warning message based on anode rod failure;

[0109] Based on the anode rod not failing, it shows the life of the anode rod.

[0110] When the anode rod fails, a reminder message is sent to facilitate the user to replace the anode rod in time.

[0111] When the anode rod has not failed, the life of the anode rod continues to be displayed normally, so that the user can know the remaining life of the anode rod.

[0112] An embodiment of the present application also provides a monitoring device, including a processor and a memory storing a computer program. When the processor executes the computer program, the steps of the monitoring method in any of the above embodiments are implemented, thereby having all the above-mentioned beneficial effects, which will not be repeated here.

[0113] The processor may be an integrated circuit chip with signal processing capabilities. The above-mentioned processor may be a general-purpose processor, including a central processing unit (CPU), a network processor (NP), etc.; it may also be a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components. The methods, steps and logic block diagrams disclosed in the embodiments of the present invention may be implemented or executed. The general-purpose processor may be a microprocessor or the processor may also be any conventional processor, etc.

[0114] The embodiment of the present application further provides a monitoring device 5, including a detection element and a controller. The detection element can detect the electrical parameters (such as current or charge) of the circuit where the anode rod is located, and the controller can determine the life of the anode rod based on the detection result of the detection element.

[0115] The present application also provides a water heater, comprising: an inner tank, an anode rod, and a monitoring device 5 as in any of the above embodiments. The anode rod is inserted into the inner tank and electrically connected to the inner tank to form a loop. The monitoring device 5 is connected to the loop and is configured to monitor the life of the anode rod. The water heater may be, but is not limited to, a heat pump water heater.

[0116] The embodiment of the present application also provides a computer-readable storage medium storing a computer program. When the computer program is executed by a processor, the steps of the monitoring method in any of the above embodiments are implemented, thereby having all the above-mentioned beneficial effects, which will not be repeated here.

[0117] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0118] 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 at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0119] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0120] In the present application, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being “above”, “above”, and “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below”, “below”, and “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0121] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. 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 application. In this specification, the schematic representations of the above terms do 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. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0122] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application.

[0123] In any one or more of the above exemplary embodiments, the functions described may be implemented in hardware, software, firmware, or any combination thereof. If implemented in software, the functions may be stored on a computer-readable medium or transmitted via a computer-readable medium as one or more instructions or codes, and executed by a hardware-based processing unit. A computer-readable medium may include a computer-readable storage medium corresponding to a tangible medium such as a data storage medium, or a communication medium that facilitates a computer program, such as any medium transmitted from one place to another according to a communication protocol. In this way, a computer-readable medium may generally correspond to a non-temporary tangible computer-readable storage medium or a communication medium such as a signal or carrier wave. A data storage medium may be any available medium that can be accessed by one or more computers or one or more processors to retrieve instructions, codes, and / or data structures for implementing the technology described in the present disclosure. A computer program product may include a computer-readable medium.

[0124] By way of example and not limitation, such computer-readable storage media may include RAM, ROM, EEPROM, CD-ROM or other optical disk storage, magnetic disk storage or other magnetic storage, flash memory, or any other medium that can be used to store the desired program code in the form of instructions or data structures and can be accessed by a computer. Moreover, any connection may also be referred to as a computer-readable medium. For example, if instructions are transmitted from a website, server or other remote source using coaxial cable, fiber optic cable, twisted pair, digital subscriber line (DSL), or wireless technologies such as infrared, radio and microwave, then coaxial cable, fiber optic cable, twisted pair, DSL, or wireless technologies such as infrared, radio and microwave are included in the definition of medium. However, it should be understood that computer-readable storage media and data storage media do not include connections, carrier waves, signals, or other transient (transient) media, but are directed to non-transient tangible storage media. As used herein, disks and optical disks include compact disks (CDs), laser disks, optical disks, digital versatile disks (DVDs), floppy disks, or Blu-ray disks, etc., where disks typically reproduce data magnetically, while optical disks use lasers to reproduce data optically. Combinations of the above should also be included within the scope of computer-readable media.

[0125] For example, instructions may be executed by one or more processors such as one or more digital signal processors (DSPs), general purpose microprocessors, application specific integrated circuits (ASICs), field programmable logic arrays (FPGAs), or other equivalent integrated or discrete logic circuits. Thus, the term "processor" as used herein may refer to any of the above structures or any other structures suitable for implementing the techniques described herein. Additionally, in some aspects, the functionality described herein may be provided within dedicated hardware and / or software modules configured for encoding and decoding, or incorporated in a combined codec. Also, the techniques may be fully implemented in one or more circuits or logic elements.

[0126] The technical solutions of the embodiments of the present disclosure can be implemented in a wide variety of devices or equipment, including wireless mobile phones, integrated circuits (ICs) or a group of ICs (e.g., chipsets). Various components, modules or units are described in the embodiments of the present disclosure to emphasize the functional aspects of the devices configured to perform the described techniques, but they do not necessarily need to be implemented by different hardware units. Instead, as described above, the various units can be combined in a codec hardware unit or provided by a collection of interoperable hardware units (including one or more processors as described above) in combination with suitable software and / or firmware.

Claims

1. A monitoring method, It is characterized in that Used to monitor the life of the anode rod, the monitoring method comprises: Determine the charge Q generated by the circuit where the anode rod is located; Determine the theoretical corrosion mass m of the anode rod according to the charge Q generated by the circuit where the anode rod is located; The life of the anode rod is determined according to the theoretical corrosion mass m of the anode rod.

2. The monitoring method according to claim 1, It is characterized in that The determining of the charge amount Q generated by the loop where the anode rod is located comprises: regularly determining the charge amount Q generated by the loop where the anode rod is located within a reference time length ts; The method of determining the theoretical corrosion mass m of the anode rod according to the charge Q generated in the loop where the anode rod is located comprises: calculating the theoretical corrosion mass m of the anode rod in the reference time length ts according to the charge Q generated in the loop where the anode rod is located in the reference time length ts, where m=Q×M / (b×e×N A ), where M represents the molar mass of the material of the anode rod; b represents the number of electrons generated by the corrosion of one atom of the anode rod; e represents the absolute value of the charge of a single electron; N A represents Avogadro's constant; Determining the life of the anode rod according to the theoretical corrosion mass m of the anode rod comprises: According to the theoretical corrosion mass m of the anode rod determined regularly within the reference time length ts, the theoretical total corrosion mass mz of the anode rod is calculated; wherein, p represents: the total number of the reference time length ts during the period from the start of use of the anode rod to the current moment; mi represents: the theoretical corrosion quality of the anode rod determined according to the charge amount Qi generated by the circuit where the anode rod is located during the i-th reference time length ts; The life of the anode rod is determined according to the theoretical total corrosion mass mz of the anode rod.

3. The monitoring method according to claim 2, It is characterized in that Also includes: The reference time length ts is adjusted according to the life of the anode rod.

4. The monitoring method according to claim 3, It is characterized in that The ts is positively correlated with the remaining life of the anode rod.

5. The monitoring method according to claim 4, It is characterized in that The remaining life of the anode rod is characterized by the remaining mass percentage η; Determining the life of the anode rod according to the theoretical total mass of corrosion mz of the anode rod comprises: determining the remaining mass percentage η of the anode rod according to the theoretical total mass of corrosion mz of the anode rod and the initial mass m0 of the anode rod, η=(m0-mz) / m0×100%; The adjusting the reference time length ts according to the life of the anode rod includes: adjusting the reference time length ts according to the remaining mass percentage η of the anode rod.

6. The monitoring method according to claim 5, It is characterized in that The adjusting the reference time length ts according to the remaining mass percentage η of the anode rod comprises: Based on η>η1, ts=ts1; Based on η2<η≤η1, ts=ts2; Among them, η1 is the first set percentage, η2 is the second set percentage, ts1 is the first set time length, ts2 is the second set time length, 0<η2<η1, 0<ts2<ts1.

7. The monitoring method according to claim 5, It is characterized in that Also includes: Detecting and recording the current value generated by the circuit where the anode rod is located; Based on 0<η≤η2, whether the anode rod is failed is determined according to the current value generated in the loop where the anode rod is located, and η2 is a second set percentage.

8. The monitoring method according to claim 7, It is characterized in that The step of judging whether the anode rod is failed according to the current value generated in the loop where the anode rod is located comprises: Whether the anode rod is failed is determined based on Imax and Imin; wherein Imax represents the maximum current value of the circuit where the anode rod is located during the time period from the moment η=η2 to the current moment; and Imin represents the minimum current value of the circuit where the anode rod is located during the time period from the initial use of the anode rod to the moment η=η1.

9. The monitoring method according to claim 8, It is characterized in that The determining whether the anode rod is failed according to Imax and Imin includes: Based on Imax<a×Imin, the anode rod is determined to be failed, where a is a coefficient, 0<a≤1; Based on Imax≥a×Imin, it is determined that the anode rod is not failed.

10. The monitoring method according to any one of claims 7 to 9, It is characterized in that Also includes: Based on the failure of the anode rod, issuing a reminder message; Based on the fact that the anode rod has not failed, the life of the anode rod is shown.

11. The monitoring method according to any one of claims 2 to 9, It is characterized in that The step of determining the charge amount Q generated by the loop where the anode rod is located within the reference time length ts includes: Detecting and recording the corrosion current values ​​generated at different times in the circuit where the anode rod is located within the reference time length ts; Calculate the electric charge Q generated by the circuit where the anode rod is located within the reference time period ts. where I n represents the current value at the moment T within the reference time period ts of the circuit where the anode rod is located, and n ≥ 0. n ​ 12. The monitoring method according to any one of claims 1 to 9, It is characterized in that The life of the anode rod is characterized by the remaining mass percentage.

13. A monitoring device, It is characterized in that The system comprises a processor and a memory storing a computer program, wherein when the processor executes the computer program, the steps of the monitoring method according to any one of claims 1 to 12 are implemented.

14. A water heater, It is characterized in that include: Liner; an anode rod, inserted into the inner container and electrically connected to the inner container to form a loop; and The monitoring device of claim 13, connected to the loop, and configured to monitor the life of the anode rod.

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