Overload Protection Method, Electronic Device, and Storage Medium

Abstract

The present application provides an overload protection method, an electronic device, and a storage medium, relating to the technical field of power consumption protection. The method includes: obtaining the timing values of a slip timer, an overload timer, and N interval timers in a watt-hour meter, as well as the count value of a trip counter; when the timing value of the slip timer is less than a first threshold, controlling the watt-hour meter not to automatically close the switch according to the count value of the trip counter and a first preset number of times, and performing a clearing operation when the watt-hour meter receives a remote closing command to close the switch, or clearing the overload timer when the watt-hour meter automatically closes the switch; when the timing value of the slip timer is greater than or equal to the first threshold, performing a clearing operation according to the count value of the trip counter and a second preset number of times, or performing an update operation when the watt-hour meter automatically closes the switch, thereby achieving precise and multi-dimensional overload protection.

Description

Technical Field

[0001] This application relates to the technical field of electrical protection, and in particular, to an overload protection method, an electronic device, and a storage medium. Background Art

[0002] Electrical overload protection is a protection mechanism designed to prevent dangerous situations such as overheating, damage, and even fire caused by excessive load on electrical equipment, ensuring the safe operation of the power system.

[0003] In the related art, usually, by detecting the power or current of the load and comparing it with a preset overload threshold, when the power or current is greater than the preset overload threshold, the electricity meter is controlled to trip automatically, thereby achieving overload protection.

[0004] However, the above-mentioned solution uses a single threshold and cannot be dynamically adjusted according to the change of the load, which easily leads to misjudgment or missed judgment, resulting in a low accuracy of overload detection and unable to achieve precise overload protection. Summary of the Invention

[0005] This application provides an overload protection method, an electronic device, and a storage medium to solve the problem that a single threshold cannot be dynamically adjusted according to the load change, which easily leads to misjudgment or missed judgment, resulting in a low accuracy of overload detection and unable to achieve precise overload protection, and realizes accurate overload detection, precise overload protection, and realizes the user's electrical safety protection.

[0006] In a first aspect, this application provides an overload protection method, including:

[0007] Obtain the timing values of the slip timer, overload timer, and N interval timers in the electricity meter, as well as the count value of the trip counter, where N is an integer greater than or equal to 1; the overload timer is used to start timing when the electricity meter detects an overload, and is cleared after the electricity meter has tripped and closed once in sequence; the trip counter is used to increment the count value when the electricity meter trips automatically; the slip timer is used to start timing when the electricity meter trips automatically for the first time; the nth interval timer is used to start timing when the electricity meter detects the nth overload and controls the electricity meter to trip automatically, and ends timing when the (n + 1)th automatic trip occurs; the value of n is greater than or equal to 1 and less than or equal to N;

[0008] When the timing value of the slip timer is less than the first threshold, control the electricity meter not to automatically close the switch according to the count value of the trip counter and the first preset number of times, and perform a clearing operation when the electricity meter receives a remote closing command to close the switch, or clear the overload timer when the electricity meter automatically closes the switch; wherein, the clearing operation includes: clearing the trip counter, the overload timer, the slip timer, and all interval timers;

[0009] When the timing value of the slip timer is greater than or equal to the first threshold, perform the clearing operation according to the count value of the trip counter and the second preset number of times, or perform an update operation when the electricity meter automatically closes the switch, and the update operation includes: updating the slip timer according to the timing value of the slip timer and the timing value of the first interval timer T1, and assigning the timing value of the interval timer T N+1 to the interval timer T N and subtracting 1 from the count value of the trip counter.

[0010] In a possible design, the controlling the electricity meter not to automatically close the switch according to the count value of the trip counter and the first preset number of times, and performing a clearing operation when the electricity meter receives a remote closing command to close the switch, or clearing the overload timer when the electricity meter automatically closes the switch includes:

[0011] When the count value of the trip counter is greater than or equal to the first preset number of times, control the electricity meter not to automatically close the switch, and perform a clearing operation when the electricity meter receives a remote closing command to close the switch;

[0012] When the count value of the trip counter is less than the first preset number of times, clear the overload timer when the electricity meter automatically closes the switch.

[0013] In a possible design, the performing the clearing operation according to the count value of the trip counter and the second preset number of times, or performing an update operation when the electricity meter automatically closes the switch includes:

[0014] When the count value of the trip counter is less than or equal to the second preset number of times, perform the clearing operation;

[0015] When the count value of the trip counter is greater than the second preset number of times, perform the update operation when the electricity meter automatically closes the switch.

[0016] In a possible design, the method further includes:

[0017] When the timing value of the overload timer is less than the preset overload threshold, clear the overload timer.

[0018] In a possible design, the method further includes:

[0019] If the electric energy meter does not receive a remote closing command, the electric energy meter is controlled to power off and then power on and perform the clearing operation, so that the electric energy meter automatically closes again.

[0020] In a possible design, the method further includes:

[0021] When the timing value of the slip timer is less than a first threshold and the count value of the trip counter is greater than or equal to the first preset number of times, a reminder command is sent to the user, and the reminder command is used to indicate a trip due to continuous overload.

[0022] In a second aspect, the present application provides an overload protection device, including: a module for executing the method in the first aspect and any possible design of the first aspect.

[0023] For what is provided in the above second aspect and each possible design of the second aspect, the beneficial effects can refer to the beneficial effects brought by the first aspect and each possible implementation manner of the first aspect, which will not be elaborated here.

[0024] In a third aspect, the present application provides an electronic device, including: a first processor;

[0025] The first processor is used to execute computer-executable programs or instructions in the memory, so that the electronic device executes the method in the first aspect and any possible design of the first aspect.

[0026] In a fourth aspect, the present application provides an electronic device, including: a memory and a second processor; the memory is used to store program instructions; the second processor is used to call the program instructions in the memory so that the electronic device executes the method in the first aspect and any possible design of the first aspect.

[0027] In a fifth aspect, the present application provides a computer-readable storage medium, on which a computer program is stored, and when the computer program is executed by a processor, the electronic device is enabled to execute the method in the first aspect and any possible design of the first aspect.

[0028] Through the overload protection method provided by the first aspect, obtain the timing values of the slip timer, overload timer, and N interval timers in the electricity meter, as well as the count value of the trip counter, so as to know the duration elapsed after the first automatic trip, the duration from each occurrence of overload and trip to reclosing, the duration between every two trips, and the number of trips, facilitating overload protection. Judge in real time whether the timing value of the slip timer is less than the first threshold. If the timing value of the slip timer is less than the first threshold, control the electricity meter not to reclose automatically according to the count value of the trip counter and the first preset number, and perform a clearing operation when the electricity meter receives a remote reclosing command for reclosing, or clear the overload timer when the electricity meter recloses automatically, so that within the duration indicated by the first threshold, if there are greater than or equal to the first preset number of trips (i.e., overloads), the automatic reclosing of the electricity meter can be stopped in time, realizing a complete power-off of the circuit, thereby achieving overload protection. If the timing value of the slip timer is greater than or equal to the first threshold, perform a clearing operation according to the count value of the trip counter and the second preset number, or perform an update operation when the electricity meter recloses automatically, so as to eliminate the duration from the first trip to the second trip from the timing value of the slip timer. This can ensure that in each case where there are greater than or equal to the first preset number of overloads within the duration indicated by the first threshold, that is, when there are frequent overloads within a certain duration, the electricity meter can be prevented from reclosing automatically, making the circuit completely power-off, and achieving precise overload protection. Based on this, precise and multi-dimensional overload protection is realized, thus realizing the user's power consumption safety protection. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 The flowchart of an overload protection method provided by an embodiment of the present application.

[0030] Figure 2 The flowchart of a judgment method provided by an embodiment of the present application.

[0031] Figure 3 The flowchart of a judgment method provided by an embodiment of the present application.

[0032] Figure 4 The structural schematic diagram of an overload protection device provided by an embodiment of the present application.

[0033] Figure 5 The structural schematic diagram of an electronic device provided by an embodiment of the present application.

[0034] Figure 6 The structural schematic diagram of an electronic device provided by an embodiment of the present application. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0035] In this application, "at least one" means one or more, and "a plurality" means two or more. "And / or" describes the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist simultaneously, and B exists alone, where A and B can be singular or plural. The character " / " generally represents an "or" relationship between the associated objects before and after. "At least one of the following" or its similar expressions refer to any combination of these items, including any combination of single item(s) or plural item(s). For example, at least one of a alone, b alone, or c alone can represent: a alone, b alone, c alone, the combination of a and b, the combination of a and c, the combination of b and c, or the combination of a, b, and c, where a, b, and c can be single or multiple. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0036] The orientation or positional relationship indicated by terms such as "center", "longitudinal", "transverse", "upper", "lower", "left", "right", "front", "rear", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing this application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation of this application.

[0037] The terms "connected" and "coupled" should be understood in a broad sense. For example, the "connection" or "coupling" of a circuit structure can refer not only to a physical connection but also to an electrical connection or a signal connection. For example, it can be a direct connection, that is, a physical connection, or it can be indirectly connected through at least one intermediate element, as long as the circuit is connected. It can also be the internal connection of two elements; a signal connection can refer not only to a signal connection through a circuit but also to a signal connection through a media medium, such as radio waves. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0038] Exemplarily, this application provides an overload protection method, device, electronic device, computer-readable storage medium, and computer program product. By setting a slip interval and a combination of multiple judgment logics, when an overload occurs, both the number of automatic trips, the interval duration between each automatic trip, the frequency of automatic trips within a certain duration, and the overload recovery logic are considered, achieving precise and multi-dimensional overload protection, thereby realizing the user's power safety protection.

[0039] Among them, the overload protection method can be executed by an electronic device, or can be executed by an overload protection device in the electronic device. The overload protection device can be implemented by a combination of software and / or hardware. For example, the overload protection device can be an application (APP), a web page, a public account, etc. Or, the overload protection device can be a control chip in the electric energy meter.

[0040] Among them, the electronic device can be an electric energy meter, a server, a desktop computer, a mobile phone, a tablet computer, a laptop computer, a wearable device, a vehicle-mounted device, or an augmented reality (AR) / virtual reality (VR) device, etc. For the sake of simplicity of description, the embodiments of the present application will be described by taking the execution by the overload protection device as an example.

[0041] Next, in conjunction with Figures 1 to 3 , the overload protection method provided by the embodiments of the present application will be described.

[0042] Please refer to Figure 1 , Figure 1 which is a schematic flowchart of an overload protection method provided by an embodiment of the present application. As Figure 1 shown, the method includes:

[0043] S101. The overload protection device obtains the timing values of the slip timer, the overload timer, and N interval timers in the electric energy meter and the count value of the trip counter.

[0044] Among them, N is an integer greater than or equal to 1.

[0045] Among them, the overload timer is used to start timing when the electric energy meter detects an overload, and is cleared after the electric energy meter undergoes a trip and a closing in sequence.

[0046] The overload protection device can detect whether an overload occurs by itself, or receive the overload information sent by the electric energy meter to know whether an overload occurs.

[0047] Among them, the overload protection device or the electric energy meter can detect an overload through the following methods 1 and 2.

[0048] Method 1: Real-time detect the power of the load, and when the power of the load is greater than or equal to the preset power threshold, it is determined that an overload is detected.

[0049] Method 2: Real-time detect the current of the load, and when the current of the load is greater than or equal to the preset current threshold, it is determined that an overload is detected.

[0050] Among them, the preset power threshold or the preset current threshold can be set through the overload threshold data item 04000E01 in the electricity meter. The overload threshold data item includes 3 bytes and uses BCD coding. For example, it is XX.XXXX, with the unit of kW or A. The setting of the overload threshold data item can be achieved through factory default settings, remote settings, or local button settings, so that the preset power threshold or the preset current threshold can be configured flexibly.

[0051] When an overload is detected, the overload protection device can start an overload timer. If the overload continues, the overload timer will continue to count. Thus, the overload protection device can record the duration of each overload through the overload timer, so as to determine whether to start an interval timer for interval timing or to make the electricity meter work normally according to the duration of the overload.

[0052] The overload protection device monitors the timing value of the overload timer in real time.

[0053] Specifically, the circuit allows a certain duration of overload during design. When the timing value of the overload timer is less than the preset overload threshold, that is, when the duration of the overload is less than the preset overload threshold, the overload protection device can control the overload timer to be cleared, and the electricity meter enters the normal working state. Based on this, when the duration of an overload is small once, this overload will not affect the safety of the circuit. Therefore, the overload protection device can ignore this overload and continue to judge the next occurrence of overload, thus avoiding misjudgment and improving the accuracy of overload protection.

[0054] When the timing value of the overload timer is greater than or equal to the preset overload threshold, the electricity meter trips automatically. Thus, it can protect the circuit in time after the electricity meter is overloaded for more than a certain duration. The overload protection device needs to take this overload into account in the overload protection process, control the trip counter to count once, and control the slip timer and the interval timer to start timing.

[0055] Among them, the preset overload threshold can be 1 minute.

[0056] Among them, the trip counter is used to increment the count value when the electricity meter trips automatically.

[0057] When the electricity meter trips automatically, the overload protection device can increment the count value of the trip counter, so that the number of trips can be recorded through the trip counter.

[0058] After the first duration when the electricity meter trips automatically, the electricity meter will automatically close the switch. At this time, if the overload protection device detects that the electricity meter automatically closes the switch, it can clear the overload timer and complete an overload timing. Among them, the first duration can be 3 minutes, that is, the electricity meter will automatically close the switch 3 minutes after it trips automatically.

[0059] Among them, a slip timer is used to start timing when the electricity meter first undergoes an automatic trip.

[0060] When the electricity meter first undergoes an automatic trip, the overload protection device can start the timing of the slip timer. Based on this, the overload protection device can determine the tripping frequency within a certain time duration according to the timing value in the slip timer and the counting value in the trip counter, so as to perform circuit protection according to the tripping frequency within a certain time duration, realizing overload protection in one dimension.

[0061] Among them, the nth interval timer is used to start timing when the electricity meter detects the nth overload and controls the electricity meter to automatically trip, and ends the timing when the (n + 1)th automatic trip occurs. That is to say, each interval timer can record the time duration between every two occurrences of automatic trips.

[0062] Among them, n is greater than or equal to 1 and less than or equal to N.

[0063] Taking six trips as an example, as shown in Table 1 below, the overload protection device can obtain the timing values of 5 interval timers.

[0064] Table 1

[0065]

[0066] Based on this, the overload protection device can know the time interval between every two occurrences of automatic trips according to the timing value of the interval timer.

[0067] S102. The overload protection device continuously judges whether the timing value of the slip timer is less than the first threshold.

[0068] If the timing value of the slip timer is less than the first threshold, the overload protection device executes S103; if the timing value of the slip timer is greater than or equal to the first threshold, the overload protection device executes S104.

[0069] According to the timing value of the slip timer, the overload protection device can know the time duration after the first occurrence of an automatic trip, execute one overload protection method within the time duration indicated by the first threshold, and execute another overload protection method when exceeding the time duration indicated by the first threshold, thereby combining the number of overload occurrences, duration, and frequency to achieve dynamic overload protection.

[0070] Among them, the first threshold can be set according to the determination period of overload protection, for example, it is 59 minutes. Based on this, plus the 1-minute time duration of overload occurrence, overload protection with a 1-hour cycle can be achieved.

[0071] The overload protection device can continuously perform the judgment of S102 during the timing of the slip timer, so as to perform overload protection continuously.

[0072] S103. The overload protection device controls the electricity meter not to automatically switch on according to the count value of the trip counter and the first preset number of times, and performs a clearing operation when the electricity meter receives a remote switching-on command to switch on, or clears the overload timer when the electricity meter performs an automatic switching-on.

[0073] Among them, the clearing operation includes: clearing the trip counter, the overload timer, the slip timer, and all interval timers.

[0074] If the timing value of the slip timer is less than the first threshold, then within the duration indicated by the first threshold, the overload protection device can perform overload protection in the manner of S103. The overload protection device can combine the number of trips, that is, the count value of the trip counter, to determine the tripping frequency within the duration indicated by the first threshold.

[0075] Specifically, if the count value of the trip counter is greater than or equal to the first preset number of times, that is, when there is frequent overload within a certain duration, then the overload protection device can decide not to perform automatic switching-on after the electricity meter automatically trips, realizing complete power-off of the circuit and completing an overload protection.

[0076] Among them, the first preset number of times can be 6 times.

[0077] Among them, the overload protection device can make the electricity meter not automatically switch on by sending a non-automatic switching-on command to the electricity meter, or the overload protection device can directly control the electricity meter not to automatically switch on.

[0078] At this time, the user needs to handle the overload fault, and after the handling is completed, send a remote switching-on command to the electricity meter. The electricity meter switches on according to the remote switching-on command. After the overload protection device detects that the electricity meter switches on, it performs a clearing operation and starts a new round of overload protection. If the remote switching-on command sent by the user is not received, the overload protection device can control the electricity meter to power off and then power on and perform a clearing operation to make the electricity meter automatically switch on again.

[0079] If the count value of the trip counter is less than the first preset number of times, then the electricity meter will perform normal automatic switching-on, and the overload protection device clears the overload timer and continues to wait for the next overload to occur.

[0080] Based on this, when the timing value of the slip timer is less than the first threshold, if there are the first preset number of times of overload, the overload protection device can control the electricity meter not to automatically switch on, realizing overload protection with multiple judgments combining duration, number of times, and frequency, and improving the accuracy of overload protection.

[0081] S104. The overload protection device performs a clearing operation according to the count value of the trip counter and the second preset number of times, or performs an update operation when the electric energy meter automatically closes the switch.

[0082] If the timing value of the slip timer is greater than or equal to the first threshold, that is to say, the overload protection device has not performed the operation of clearing the slip timer within the duration indicated by the first threshold. That is, within the duration indicated by the first threshold, the number of trips has not reached the first preset number of times. Then, when exceeding the duration indicated by the first threshold, the overload protection device can perform overload protection in the manner of S104.

[0083] Based on this, the overload protection device continues to judge how many trips have occurred at this time according to the count value of the trip counter. If the count value of the trip counter is greater than the second preset number of times, that is, after the duration indicated by the first threshold, the electric energy meter has had the number of trips equal to the count value. At this time, the overload protection device can perform an update operation when the electric energy meter automatically closes the switch.

[0084] Among them, the update operation includes: updating the slip timer according to the timing value of the slip timer and the timing value of the first interval timer T1, assigning the timing value of the interval timer T N+1 to the interval timer T N and subtracting 1 from the count value of the trip counter.

[0085] Among them, the overload protection device can assign the difference between the timing value of the slip timer and the timing value of the first interval timer T1 to the slip timer, so as to eliminate the duration from the first trip to the second trip from the timing value of the slip timer. In this way, the overload protection device can, according to the updated timing value of the slip timer, again judge whether the updated timing value of the slip timer is less than the first threshold in the manner of S102. If it is less than the first threshold, then the overload protection device can continue to perform overload protection in the manner of S103, ensuring that every time there is an overload greater than or equal to the first preset number of times within the duration indicated by the first threshold, the electric energy meter can be prevented from automatically closing the switch, achieving a complete power-off of the circuit, and thus realizing precise overload protection. If the updated timing value of the slip timer is greater than or equal to the first threshold, then the overload protection device can continue to perform overload protection in the manner of S104, perform a clearing operation, or continue to update the timer.

[0086] For example, if the first threshold is 1 hour and the count value of the trip counter is 6 times, based on Table 1, the timing values of the slip timer T0 and the interval timers T1 to T5 are shown in Table 2 below:

[0087] Table 2

[0088]

[0089] The overload protection device subtracts 1 from the count value of the trip counter, which is 5 times. It assigns the difference T0 - T1 = 50 minutes between the timing value of the slip timer T0 and the count value of the interval timer T1 to the slip timer T0. It assigns the timing value of the interval timer T2 to the interval timer T1, assigns the timing value of the interval timer T3 to the interval timer T2, and so on. The updated timing values of the timers are shown in Table 3 below:

[0090] Table 3

[0091]

[0092] Based on this, the slip timer T0 and the interval timer T5 continue to count. When the overload protection device detects that the timing value of the slip timer T0 is less than the first threshold, it enters S103. If another overload occurs at this time and the electricity meter trips automatically, the count value of the trip counter increases by 1 and becomes 6 times. The interval timer T5 stops counting. If the timing value of the interval timer T5 is 5 minutes and the timing value of the slip timer T0 is 55 minutes at this time, and the first preset number of times is 6 times, that is, the number of trips is greater than or equal to the first preset number of times, then the overload protection device can decide not to perform automatic reclosing after the electricity meter trips automatically, achieving a complete power-off of the circuit and completing an overload protection.

[0093] Based on this, by means of the slip interval, after the timing value of the slip timer is greater than or equal to the duration indicated by the first threshold each time, the overload protection device subtracts the duration between the first automatic trip and the second automatic trip, ensuring that each time when there are greater than or equal to the first preset number of times of overloads within the duration indicated by the first threshold, the electricity meter can no longer perform automatic reclosing, achieving a complete power-off of the circuit, and thus achieving precise overload protection.

[0094] If the count value of the trip counter is less than or equal to the second preset number of times, then the overload protection device can clear all the timers and the trip counter and start a new round of overload protection.

[0095] Among them, the second preset number of times can be 1. That is, if the count value of the trip counter is less than or equal to 1, that is, within the duration greater than or equal to the first threshold, the electricity meter has only tripped automatically once or has not tripped, then the overload protection device can clear all the timers and the trip counter and start the judgment of overload protection again. If the count value of the trip counter is greater than 1, then the overload protection device can perform an update operation to update all the timers and the trip counter. Thus, precise overload protection is achieved.

[0096] In an embodiment of the present application, the overload protection device obtains the timing values of the slip timer, the overload timer, and N interval timers in the electricity meter, as well as the count value of the trip counter, so as to know the duration elapsed after the first automatic trip, the duration from each occurrence of overload and trip to reclosing, the duration between every two trips, and the number of trips, for the purpose of performing overload protection. The overload protection device continuously determines whether the timing value of the slip timer is less than the first threshold. If the timing value of the slip timer is less than the first threshold, the overload protection device controls the electricity meter not to automatically reclose according to the count value of the trip counter and the first preset number of times, and performs a clearing operation when the electricity meter receives a remote reclosing command to close, or clears the overload timer when the electricity meter automatically recloses, so that within the duration indicated by the first threshold, if there are greater than or equal to the first preset number of trips (i.e., overloads), the automatic reclosing of the electricity meter can be stopped in time, achieving complete power-off of the circuit, thereby realizing overload protection. If the timing value of the slip timer is greater than or equal to the first threshold, the overload protection device performs a clearing operation according to the count value of the trip counter and the second preset number of times, or performs an update operation when the electricity meter automatically recloses, so as to eliminate the duration from the first trip to the second trip from the timing value of the slip timer. This can ensure that the overload protection device can prevent the electricity meter from automatically reclosing every time there are greater than or equal to the first preset number of overloads within the duration indicated by the first threshold, that is, when there are frequent overloads within a certain duration, making the circuit completely power-off and achieving precise overload protection. Based on this, precise and multi-dimensional overload protection is realized, thereby realizing the user's power consumption safety protection.

[0097] Based on the above exemplary description, in S103, the overload protection device can control the electricity meter not to automatically reclose according to the count value of the trip counter and the first preset number of times, and perform a clearing operation when the electricity meter receives a remote reclosing command to close, or clear the overload timer when the electricity meter automatically recloses, in the following Figure 2 shown manner.

[0098] Please refer to Figure 2 , Figure 2 which is a schematic flowchart of a judgment method provided by an embodiment of the present application. As Figure 2 shown, the method includes:

[0099] S201. The overload protection device determines whether the count value of the trip counter is greater than or equal to the first preset number of times.

[0100] If the count value of the trip counter is greater than or equal to the first preset number of times, the overload protection device executes S202; if the count value of the trip counter is less than the first preset number of times, the overload protection device executes S203.

[0101] S202. The overload protection device controls the electricity meter not to automatically close the switch, and performs a clearing operation when the electricity meter receives a remote closing command to close the switch.

[0102] Based on this, when the count value of the trip counter is greater than or equal to the first preset number of times, that is, when there is frequent overload within a certain period of time, the overload protection device decides not to perform automatic closing after the electricity meter automatically trips, realizes complete power-off of the circuit, and completes an accurate overload protection.

[0103] S203. The overload protection device clears the overload timer when the electricity meter performs automatic closing.

[0104] Based on this, the overload protection device can continue to detect the next overload.

[0105] Based on the above exemplary description, in S104, the overload protection device can perform a clearing operation according to the count value of the trip counter and the second preset number of times in the following Figure 3 shown manner, or perform an update operation when the electricity meter performs automatic closing.

[0106] Please refer to Figure 3 , Figure 3 which is a schematic flowchart of a judgment method provided by an embodiment of the present application. As Figure 3 shown, the method includes:

[0107] S301. The overload protection device determines whether the count value of the trip counter is less than or equal to the second preset number of times.

[0108] If the count value of the trip counter is less than or equal to the second preset number of times, the overload protection device executes S302; if the count value of the trip counter is greater than the second preset number of times, the overload protection device executes S303.

[0109] S302. The overload protection device performs a clearing operation.

[0110] Based on this, the overload protection device can re-perform a new round of overload protection, improving the self-healing ability of the system.

[0111] S303. The overload protection device performs an update operation when the electricity meter performs automatic closing.

[0112] Based on this, the overload protection device can eliminate the duration from the first trip to the second trip from the timing value of the slip timer, ensuring that each time there is an overload greater than or equal to the first preset number of times within the duration indicated by the first threshold, the electricity meter can be made not to perform automatic closing, realizing complete power-off of the circuit, and thus realizing accurate overload protection.

[0113] Based on the above exemplary description, the overload protection device can also send a reminder command to the user when the timing value of the slip timer is less than the first threshold and the count value of the trip counter is greater than or equal to the first preset number of times. The reminder command is used to indicate a trip due to a continuous overload.

[0114] Based on this, it is possible to report to the user that a trip due to a continuous overload has occurred, issue a warning to the user, and ensure that the user can handle the fault in a timely manner, thereby improving the user experience.

[0115] Among them, the overload protection device can report the fault to the user by monitoring the status word encoding, and the status word encoding is shown in Table 4 below:

[0116] Table 4

[0117]

[0118] When the timing value of the slip timer is less than the first threshold and the count value of the trip counter is greater than or equal to the first preset number of times, bit1 in the status word can be 1. When the overload protection device detects that bit1 is set to 1, it sends a reminder command to the user, such as sending a text message reminder to the user. If the electricity meter automatically closes the switch, bit1 can be 0.

[0119] Among them, bit0 can be the trip counter, and the overload protection device continuously detects the change of bit0 and informs the user of the number of trips that have occurred. The remaining bit2 to bit7 can be defined separately according to requirements and will not be described here.

[0120] Figure 4 FIG. is a schematic structural diagram of an overload protection device provided by an embodiment of the present application. As Figure 4 shown, the device includes: an acquisition module 101 and a control module 102.

[0121] The acquisition module 101 is configured to acquire the timing values of the slip timer, the overload timer, and N interval timers in the electricity meter, and the count value of the trip counter, where N is an integer greater than or equal to 1; the overload timer is configured to start timing when the electricity meter detects an overload, and clear the count after the electricity meter has tripped once and closed the switch once; the trip counter is configured to increment the count value by 1 when the electricity meter automatically trips; the slip timer is configured to start timing when the electricity meter first automatically trips; the nth interval timer is configured to start timing when the electricity meter detects the nth overload and controls the electricity meter to automatically trip, and end the timing when the (n + 1)th automatic trip occurs; the value of n is greater than or equal to 1 and less than or equal to N;

[0122] The control module 102 is configured to, when the timing value of the slip timer is less than the first threshold, control the electricity meter not to automatically close the switch according to the count value of the trip counter and the first preset number of times, and perform a clearing operation when the electricity meter receives a remote closing command to close the switch, or clear the overload timer when the electricity meter performs an automatic closing; wherein, the clearing operation includes: clearing the trip counter, the overload timer, the slip timer, and all interval timers;

[0123] The control module 102 is configured to, when the timing value of the slip timer is greater than or equal to the first threshold, perform a clearing operation according to the count value of the trip counter and the second preset number of times, or perform an update operation when the electricity meter performs an automatic closing. The update operation includes: updating the slip timer according to the timing value of the slip timer and the timing value of the first interval timer T1, assigning the timing value of the interval timer T N+1 to the interval timer T N and performing an operation of subtracting 1 from the count value of the trip counter.

[0124] It should be noted that the overload protection device in the embodiments of the present application can be used to implement the technical solutions of the above method embodiments, and its implementation principles and technical effects are similar, which will not be elaborated here.

[0125] In some examples, the control module 102 is specifically configured to, when the count value of the trip counter is greater than or equal to the first preset number of times, control the electricity meter not to automatically close the switch, and perform a clearing operation when the electricity meter receives a remote closing command to close the switch;

[0126] When the count value of the trip counter is less than the first preset number of times, clear the overload timer when the electricity meter performs an automatic closing.

[0127] In some examples, the control module 102 is specifically configured to, when the count value of the trip counter is less than or equal to the second preset number of times, perform a clearing operation;

[0128] When the count value of the trip counter is greater than the second preset number of times, perform an update operation when the electricity meter performs an automatic closing.

[0129] In some examples, the control module 102 is further configured to clear the overload timer when the timing value of the overload timer is less than the preset overload threshold.

[0130] In some examples, the control module 102 is further configured to, if a remote closing command is not received by the electricity meter, control the electricity meter to power off and then power on and perform a clearing operation to enable the electricity meter to automatically close the switch again.

[0131] In some examples, the overload protection device further includes a reminder module;

[0132] A reminder module, configured to send a reminder command to a user when a timing value of a slip timer is less than a first threshold and a count value of a trip counter is greater than or equal to a first preset number of times, where the reminder command is used to indicate a trip due to a continuous overload.

[0133] Figure 5 The following is a schematic structural diagram of an electronic device provided by an embodiment of the present application. As Figure 5 shown, the electronic device may include: a first processor 201 and a memory 202. A computer program is stored in the memory 202. When the first processor 201 executes the computer program, the overload protection method shown in the embodiments of the present application is implemented. Figures 1 to 3 shown.

[0134] Figure 6 The following is a schematic structural diagram of an electronic device provided by an embodiment of the present application. As Figure 6 shown, the electronic device may include: a second processor 301. When the second processor 301 executes a computer executable program or instruction in a memory to execute a computer program, the overload protection method shown in the embodiments of the present application is implemented. Figures 1 to 3 shown.

[0135] Another embodiment of the present application further provides a computer-readable storage medium. A computer program is stored on the computer-readable storage medium. When the computer program is executed by a processor, the overload protection method shown in the embodiments of the present application can be implemented. Figures 1 to 3 shown.

[0136] Another embodiment of the present application further provides a computer program product, including: execution instructions. The execution instructions are stored in a readable storage medium. At least one processor of the electronic device can read the execution instructions from the readable storage medium, and when at least one processor executes the execution instructions, the electronic device implements the overload protection method shown in the embodiments of the present application. Figures 1 to 3 shown.

[0137] In several embodiments provided by the present application, it should be understood that the disclosed systems, devices, and methods can be implemented in other ways. For example, the device embodiments described above are merely illustrative. For example, the division of modules or units is only a logical function division. In actual implementation, there may be other division methods. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed.

[0138] Those skilled in the art can understand that although some embodiments herein include certain features included in other embodiments, the combination of features of different embodiments means that it is within the scope of the present application and forms different embodiments. For example, in the claims, any one of the claimed embodiments can be used in any combination.

[0139] As described above, the above embodiments are only used to illustrate the technical solutions of the present application, rather than limiting them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the various embodiments of the present application.

Claims

1. An overload protection method, characterized in that, The method includes: Obtaining the timing values of a slip timer, an overload timer, N interval timers in an electricity meter, and the count value of a trip counter, where N is an integer greater than or equal to 1; the overload timer is used to start timing when the electricity meter detects an overload, and is cleared after the electricity meter undergoes a trip and a closing operation in sequence; the trip counter is used to increment the count value when the electricity meter undergoes an automatic trip; the slip timer is used to start timing when the electricity meter undergoes an automatic trip for the first time; the nth interval timer is used to start timing when the electricity meter detects the nth overload and controls the electricity meter to trip automatically, and ends timing when the (n + 1)th automatic trip occurs; the value of n is greater than or equal to 1 and less than or equal to N; When the timing value of the slip timer is less than a first threshold, controlling the electricity meter not to automatically close according to the count value of the trip counter and a first preset number of times, and performing a clearing operation when the electricity meter receives a remote closing command to close, or clearing the overload timer when the electricity meter automatically closes; where the clearing operation includes: clearing the trip counter, the overload timer, the slip timer, and all interval timers; When the timing value of the slip timer is greater than or equal to the first threshold, perform the clearing operation according to the count value of the trip counter and the second preset number of times, or perform an update operation when the electric energy meter automatically closes the switch. The update operation includes: updating the slip timer according to the timing value of the slip timer and the timing value of the first interval timer T1, assigning the timing value of the interval timer T N+1 to the interval timer T N , and subtracting 1 from the count value of the trip counter; Wherein, performing the clearing operation according to the count value of the trip counter and a second preset number of times, or performing an update operation when the electricity meter automatically closes, includes: When the count value of the trip counter is less than or equal to the second preset number of times, performing the clearing operation; When the count value of the trip counter is greater than the second preset number of times, performing the update operation when the electricity meter automatically closes.

2. The method according to claim 1, wherein Controlling the electricity meter not to automatically close according to the count value of the trip counter and a first preset number of times, and performing a clearing operation when the electricity meter receives a remote closing command to close, or clearing the overload timer when the electricity meter automatically closes, includes: When the count value of the trip counter is greater than or equal to the first preset number of times, controlling the electricity meter not to automatically close, and performing a clearing operation when the electricity meter receives a remote closing command to close; When the count value of the trip counter is less than the first preset number of times, clearing the overload timer when the electricity meter automatically closes.

3. The method according to any one of claims 1 to 2, characterized in that The method further includes: When the timing value of the overload timer is less than a preset overload threshold, clearing the overload timer.

4. The method according to any one of claims 1 to 2, characterized in that, The method further includes: If the electricity meter does not receive a remote closing command, controlling the electricity meter to power off and then power on and performing the clearing operation to enable the electricity meter to automatically close again.

5. The method according to any one of claims 1 to 2, characterized in that The method further includes: When the timing value of the slip timer is less than the first threshold and the count value of the trip counter is greater than or equal to the first preset number of times, sending a reminder command to the user, where the reminder command is used to indicate a trip due to continuous overload.

6. An overload protection device, characterized in that, The device includes: a module for executing the overload protection method according to any one of claims 1 - 5.

7. An electronic device, characterized in that, Including: A first processor; The first processor is configured to execute computer-executable programs or instructions in the memory, so that the electronic device executes the overload protection method according to any one of claims 1-5.

8. An electronic device, characterized in that, Comprising: At least one memory and at least one second processor; The memory is configured to store computer-executable programs or instructions; The second processor is configured to call the computer-executable programs or instructions in the memory, so that the electronic device executes the overload protection method according to any one of claims 1-5.

9. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores computer-executable programs or instructions, and the computer-executable programs or instructions are configured to execute the overload protection method according to any one of claims 1-5.

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