Intelligent socket control system and method based on overvoltage and undervoltage protector

Abstract

The invention provides an intelligent socket control system and method based on an overvoltage and undervoltage protector, and relates to the technical field of intelligent socket control. Load bias utility of an intelligent socket under different working conditions is extracted, load attribute identification is performed on voltage state information, and a load identification tag of a load side in an intelligent socket access circuit is generated; determining a voltage out-of-limit level of the voltage at the front end of the intelligent socket in an overvoltage and undervoltage state; after the dissimilatory breaking criterion is executed to cut off a load power supply loop, a reset response strategy corresponding to the voltage at the front end of the intelligent socket is generated, and then a tolerance adaptation rule of the voltage at the front end of the intelligent socket when the overvoltage and undervoltage fault is removed is determined; and performing adaptive resetting on the power supply planning table of the power supply state in the current intelligent socket access circuit according to the voltage out-of-limit level and the tolerance adaptation rule. According to the invention, differentiated adaptive control can be carried out on load power supply under the activation of an overvoltage and undervoltage protection mechanism, so that the adaptability of the intelligent socket to complex working conditions is improved.

Description

Technical Field

[0001] This application relates to the field of smart socket control technology, and more specifically, to a smart socket control system and method based on an over / under voltage protector. Background Technology

[0002] Smart socket control refers to a technology that dynamically manages the power supply status of the socket's connected circuit by integrating functional modules such as voltage monitoring, load identification, and intelligent decision-making. Its core is the real-time acquisition of parameters such as front-end voltage and current, combined with load characteristic analysis, to trigger protective actions under abnormal conditions such as overvoltage and undervoltage, such as cutting off the circuit or adjusting the power supply strategy, while orderly restoring power supply after the fault is cleared. Traditional over / undervoltage protectors can only cut off power in a single instance, while smart socket control can achieve differentiated protection, formulating disconnection and reset rules based on load sensitivity and power level, thus avoiding equipment damage and reducing unnecessary power outages. This technology is widely used in smart home and office power scenarios, improving power supply security and flexibility to meet diverse power needs, and is an important means of electrical appliance protection and energy management.

[0003] However, existing smart socket controls based on over / under voltage protectors mostly use fixed threshold triggering protection, failing to consider the bias effect and attribute differences of different loads on voltage. This results in a "one-size-fits-all" protection action, causing highly sensitive loads to be damaged due to protection delays and less sensitive loads to be affected by frequent power outages, thus reducing power supply safety and convenience. Therefore, how to implement differentiated adaptation and control of load power supply under the activation of over / under voltage protection mechanisms to improve the adaptability of smart sockets to complex operating conditions is a problem facing the industry. Summary of the Invention

[0004] This application provides a smart socket control system and method based on over- and under-voltage protectors, which can perform differentiated adaptation and control of load power supply under the activation of the over- and under-voltage protection mechanism, so as to improve the smart socket's adaptability to complex working conditions.

[0005] In a first aspect, this application provides a smart socket control method based on an over / under voltage protector, the control method comprising the following steps: When the smart socket is connected to the circuit and the over / under voltage protection mechanism is activated, the voltage status information at the front end of the smart socket is continuously collected. Extract the load bias effect of the smart socket under different operating conditions, identify the load attributes of the voltage state information, generate a load identification tag on the load side of the smart socket in the circuit, and then determine the voltage over-limit level of the front end of the smart socket under over- and under-voltage conditions based on the load identification tag and the load bias effect. A differential disconnection criterion is constructed when the over- and under-voltage protection is triggered in the smart socket access circuit. After the load power supply circuit is cut off by executing the differential disconnection criterion, a reset response strategy corresponding to the front-end voltage of the smart socket is generated. Then, the reset response strategy determines the tolerance adaptation rule of the front-end voltage of the smart socket when the over- and under-voltage fault is cleared. The power supply planning table for the current power supply status in the smart socket access circuit is adaptively reset based on the voltage over-limit level and the tolerance adaptation rule.

[0006] In this embodiment, the over / under voltage protection mechanism refers to the functional module inside the smart socket used to monitor whether the voltage exceeds the safe range and trigger protection action when it does.

[0007] In this embodiment, extracting the load bias effect of the smart socket under different operating conditions specifically includes: The steady-state bias parameters for load connection are determined based on the voltage fluctuation curves and current response characteristics of the smart socket under different operating conditions. Based on the steady-state bias parameters, determine the load bias range under different operating conditions; The load bias effect of the smart socket under different operating conditions is determined by all load bias ranges.

[0008] In this embodiment, the load bias effect refers to the specific impact of the load on the smart socket connection circuit under different operating conditions through biasing.

[0009] In this embodiment, determining the voltage over-limit level of the smart socket front-end voltage under over / under voltage conditions based on the load identification tag and the load bias effect specifically includes: The basic over / under voltage limit is obtained by matching the preset load voltage threshold with the load identification tag; The sampled voltage is corrected in real time based on the load bias effect to generate a steady-state voltage limit value that adapts to the current load characteristics. The voltage over-limit level at the front end of the smart socket under over- and under-voltage conditions is determined by the basic over- and under-voltage limits and the steady-state voltage limit value.

[0010] In this embodiment, the differential judgment criteria for triggering over / under voltage protection in the smart socket access circuit specifically include: Acquire real-time disconnection data when over / under voltage protection is triggered in the smart socket's access circuit; Based on the real-time interruption data, determine the differential control sequence when over- or under-voltage occurs in the circuit. Extract the alienation judgment criteria when the over / under voltage protection is triggered in the smart socket access circuit from the alienation control sequence.

[0011] In this embodiment, the differentiated tripping criterion refers to the rule used to regulate the tripping behavior when overvoltage or undervoltage protection is triggered, thereby achieving differentiated protection.

[0012] In this embodiment, the tolerance adaptation rule for the voltage at the front end of the smart socket when the over / under voltage fault is cleared, determined by the regression response strategy, specifically includes: The tolerance adaptation gradient of the voltage when the over- or under-voltage fault is cleared is determined according to the aforementioned regression response strategy; The self-controlled recovery trajectory of the voltage when the over- or under-voltage fault is cleared is determined based on the tolerance adaptation gradient. The tolerance adaptation rules for the voltage at the front end of the smart socket when the over / under voltage fault is cleared are determined based on the self-controlled recovery trajectory.

[0013] In this embodiment, the power supply planning table refers to a scheduling scheme that records the power supply priority, power supply period, and power limit of each load in the smart socket access circuit.

[0014] Secondly, this application provides a smart socket control system based on an over / under voltage protector, used to execute a smart socket control method based on an over / under voltage protector, the control system comprising: The information acquisition module is used to continuously collect voltage status information at the front end of the smart socket when the smart socket is connected to the circuit and the over / under voltage protection mechanism is activated. The attribute identification module is used to extract the load bias effect of the smart socket under different operating conditions, identify the load attributes of the voltage state information, generate a load identification tag on the load side of the smart socket in the circuit, and then determine the voltage over-limit level of the front end of the smart socket under over- and under-voltage conditions based on the load identification tag and the load bias effect. The disconnection judgment module is used to construct the differential disconnection criteria when the over- and under-voltage protection is triggered in the smart socket access circuit. After the differential disconnection criteria are executed to cut off the load power supply circuit, a reset response strategy corresponding to the front-end voltage of the smart socket is generated. Then, the reset response strategy determines the tolerance adaptation rule of the front-end voltage of the smart socket when the over- and under-voltage fault is cleared. The reset control module is used to adaptively reset the power supply planning table of the current power supply status in the smart socket access circuit according to the voltage over-limit level and the tolerance adaptation rule.

[0015] The technical solutions provided by the embodiments disclosed in this application have the following beneficial effects: When the smart socket is connected to the circuit and the over / under voltage protection mechanism is activated, the voltage status information of the front end of the smart socket is continuously collected; the load bias effect of the smart socket under different operating conditions is extracted, the load attribute is identified on the voltage status information, and a load identification tag is generated on the load side of the smart socket connected to the circuit. Then, the voltage over-limit level of the front end of the smart socket under the over / under voltage state is determined by the load identification tag and the load bias effect; a differential disconnection criterion is constructed when the over / under voltage protection is triggered in the smart socket connected to the circuit. After the differential disconnection criterion is executed to cut off the load power supply circuit, a reset response strategy corresponding to the front end voltage of the smart socket is generated. Then, the tolerance adaptation rule of the front end voltage of the smart socket is determined by the reset response strategy. The power supply planning table of the current power supply state in the smart socket connected to the circuit is adaptively reset according to the voltage over-limit level and the tolerance adaptation rule.

[0016] Therefore, this application demonstrates that, given the lack of specificity in existing smart socket over / under voltage protection, it improves the accuracy and adaptability of the protection mechanism. Specifically, by continuously collecting front-end voltage status information when the smart socket activates the over / under voltage protection mechanism, it can capture the complete voltage characteristics under over / under voltage conditions, providing high-quality data support for subsequent analysis, avoiding protection decision biases caused by insufficient information, and significantly enhancing the ability to perceive abnormal voltage states. By extracting load bias utility, identifying load attributes, and determining voltage over-limit levels, it can quantify the actual impact of voltage anomalies in conjunction with load characteristics, achieving refined grading of voltage over-limits, breaking the limitations of traditional fixed threshold judgments, and improving the adaptability to different load protection needs. By constructing differentiated fault criteria, generating reset response strategies, and determining tolerance adaptation rules, it can achieve differentiated faulting during over / under voltage protection and orderly reset after fault clearance, reducing unnecessary power outages, balancing protection effectiveness and power convenience, and improving the safety and efficiency of power restoration. By adaptively resetting the power supply planning table based on voltage over-limit levels and tolerance adaptation rules, the power supply scheme can dynamically adapt to the grid status and load characteristics, realize optimized resource scheduling, form a closed-loop intelligent management and control system, and improve the stability and reliability of the entire power supply system.

[0017] In summary, the technical solution adopted in this application can perform differentiated adaptation and control of the power supply to the load under the activation of the over- and under-voltage protection mechanism, so as to improve the adaptability of the smart socket to complex working conditions. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only for this embodiment of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is an exemplary flowchart of a smart socket control method based on an over / under voltage protector provided in this application; Figure 2 This is a flowchart illustrating the process of determining the load identification tag provided in this application; Figure 3 This is a flowchart illustrating the determination of the regressive response strategy provided in this application; Figure 4 This is a modular structure diagram of an intelligent socket control system based on an over / under voltage protector provided in this application. Detailed Implementation

[0020] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0021] This application provides a smart socket control system and method based on over / under voltage protectors. The core of this system involves continuously collecting voltage status information from the front end of the smart socket when it is connected to the circuit and the over / under voltage protection mechanism is activated. The system extracts the load bias effect of the smart socket under different operating conditions, identifies the load attributes of the voltage status information, generates a load identification tag for the load side in the smart socket connection circuit, and then determines the voltage over-limit level of the smart socket front end under over / under voltage conditions based on the load identification tag and the load bias effect. A differential disconnection criterion is constructed when the over / under voltage protection is triggered in the smart socket connection circuit. After the differential disconnection criterion is executed to cut off the load power supply circuit, a regression response strategy corresponding to the voltage at the front end of the smart socket is generated. The regression response strategy then determines the tolerance adaptation rule for the voltage at the front end of the smart socket when the over / under voltage fault is cleared. Finally, the power supply planning table for the current power supply state in the smart socket connection circuit is adaptively reset based on the voltage over-limit level and the tolerance adaptation rule.

[0022] Example 1: To better understand the above technical solution, the following will provide a detailed description of the technical solution in conjunction with the accompanying drawings and specific implementation methods. (Refer to...) Figure 1As shown in the figure, this is an exemplary flowchart of a smart socket control method based on an over / under voltage protector according to this embodiment of the present application. The control method includes the following steps: In step S1, when the smart socket is connected to the circuit and the over / under voltage protection mechanism is activated, the voltage status information at the front end of the smart socket is continuously collected.

[0023] In practice, a high-precision voltage sensor, such as an AC voltage transformer paired with a 16-bit AD converter, is integrated inside the smart socket. When the smart socket's over / under voltage protection mechanism is activated, i.e., when the voltage exceeds the rated range of 220V±10%, the sensor immediately starts a continuous data acquisition mode. The acquisition frequency is set to once per millisecond, and the acquired data includes real-time voltage value, voltage change rate (the ratio of the difference between two adjacent acquisitions to the time interval), and voltage fluctuation period (the average time interval of three consecutive fluctuations). The acquired raw data is transmitted to the smart socket's main control chip via an internal data bus. The main control chip performs preliminary filtering on the data, which can be done using a moving average filtering method. The average of five consecutive sampling points is taken as the valid data, and this valid data is used as the voltage status information at the front end of the smart socket.

[0024] It should be noted that, in this application, the over / under voltage protection mechanism refers to the functional module inside the smart socket used to monitor whether the voltage exceeds the safe range and trigger protection action when it does, so as to prevent abnormal voltage from damaging the connected load; voltage status information refers to data reflecting the changes in the voltage characteristics at the front end of the smart socket.

[0025] In step S2, the load bias effect of the smart socket under different operating conditions is extracted, the load attribute is identified on the voltage state information, and a load identification tag is generated on the load side of the smart socket in the circuit. Then, the voltage over-limit level of the front end of the smart socket under over- and under-voltage conditions is determined by the load identification tag and the load bias effect.

[0026] In this embodiment, the load bias effect of the smart socket under different operating conditions can be extracted by the following steps: The steady-state bias parameters for load connection are determined based on the voltage fluctuation curves and current response characteristics of the smart socket under different operating conditions. Based on the steady-state bias parameters, determine the load bias range under different operating conditions; The load bias effect of the smart socket under different operating conditions is determined by all load bias ranges.

[0027] In practice, firstly, under each operating condition, the voltage and current sensors built into the smart socket synchronously collect data. The voltage sensor continuously collects voltage values ​​at a frequency of twice per millisecond for the 30 seconds before load connection, the instant of connection (0-5 seconds), and the 30 seconds of stable operation after connection. These data are plotted with time on the horizontal axis and voltage value on the vertical axis to form a voltage fluctuation curve, with the time point of load connection marked. Similarly, the current sensor collects current values ​​at a frequency of twice per millisecond for the corresponding time period, plotting a current response characteristic curve with time on the horizontal axis and current value on the vertical axis. Data from periods where the voltage and current fluctuation amplitudes after load connection are both less than ±2% are selected to calculate the steady-state bias parameters: voltage bias = the difference between the stable operating voltage value and the reference voltage value before load connection; current bias = the difference between the average stable operating current value and the reference current value before load connection; voltage-current phase difference = the phase angle between the synchronously collected voltage and current curves. The voltage bias, current bias, and voltage-current phase difference are used as the steady-state bias parameters when the load is connected. Then, for voltage bias, intervals are set according to the voltage reference range for different operating conditions; for current bias, intervals are divided according to power level; for phase difference, three intervals are divided: 0°±10° for resistive, 90°±10° for inductive, and -90°±10° for capacitive. These three parameter intervals under the same operating condition are combined to form the load bias interval for that condition. Finally, the load bias intervals for all operating conditions are collected, and intervals of the same type are categorized and statistically analyzed. The common effects of the load on the circuit within the same type of interval are analyzed. Combining the statistical results and common effects, the state change pattern under each operating condition is summarized. This state change pattern is used as the load bias effect under different operating conditions, which will not be elaborated further here.

[0028] It should be noted that, in this application, the voltage fluctuation curve refers to the curve that records the change of voltage over time with time as the axis of time; the current response characteristic refers to the change law of current as the load is connected and the operating conditions change; the steady-state bias parameter refers to the deviation and phase relationship parameters of voltage and current relative to the reference value before the load is connected when the load is working stably; the load bias interval refers to the characteristic range formed by the combination of the voltage bias, current bias and phase difference intervals of the load under specific operating conditions; and the load bias effect refers to the specific influence effect of the load on the smart socket connection circuit under different operating conditions through the bias action.

[0029] Preferably, in this embodiment, the voltage state information is used to identify load attributes, and a load identification tag is generated on the load side of the smart socket connection circuit, with reference to... Figure 2 As shown in the figure, this is a schematic diagram of the process for determining the load identification tag in some embodiments of this application. In this embodiment, the determination of the load identification tag can be achieved by the following steps: In step S21, the load change index on the load side is determined based on the voltage state information; In step S22, the load attribute characteristics for load attribute identification are determined based on the load mutation index. In step S23, the dynamic load description of the load side in the smart socket access circuit is determined based on the load attribute characteristics. In step S24, the dynamic load description is tagged and encoded to generate a load identification tag on the load side of the smart socket access circuit.

[0030] In practice, firstly, voltage data for 10 consecutive seconds is extracted from the voltage state information, and the difference between the maximum and minimum voltage values ​​per second is calculated to obtain the voltage fluctuation amplitude. The moment when the fluctuation amplitude exceeds 5% of the rated voltage is identified, and the voltage change rate for 3 seconds before and after that moment is recorded. The maximum change rate, the duration of the abrupt change (the duration of the fluctuation exceeding the threshold), and the voltage difference before and after the abrupt change are used as load abrupt change indicators. Next, the load abrupt change indicators are compared with preset thresholds: a positive maximum change rate exceeding 5V / ms indicates capacitive characteristics; a negative rate exceeding 5V / ms indicates inductive characteristics; and a change rate less than 2V / ms indicates resistive characteristics. A sudden change duration exceeding 1 second with a large difference indicates a high-power characteristic; otherwise, it indicates a low-power characteristic. All identified characteristics are used as load attribute characteristics for load attribute identification. Then, combining the temporal correlation of the load attribute characteristics, if the capacitive characteristic is accompanied by a brief abrupt change followed by stabilization, it is described as "short-term capacitive - low-power"; and if the inductive characteristic is accompanied by continuous fluctuations, it is described as "continuous inductive - high-power". All features are integrated to form a feature combination that includes type, power, and stability. This feature combination serves as the dynamic load description on the load side of the smart socket connection circuit. Finally, an alphanumeric encoding rule can be used: the first letter indicates the type (R resistive, L inductive, C capacitive), the middle number indicates the power (1 small, 2 medium, 3 large), and the last letter indicates the stability (S stable, F fluctuating). For example, "C1S" represents capacitive-low power-stable. The encoded result serves as the load identification tag on the load side of the smart socket connection circuit. In other embodiments, other encoding methods can also be used, which are not limited here.

[0031] It should be noted that, in this application, the load change index refers to a parameter that reflects the voltage fluctuation characteristics when the load state changes suddenly; the load attribute characteristics refer to the inherent electrical characteristics of the load, which can distinguish the essential differences between different types of loads; the dynamic load description refers to a description that reflects the working characteristics of the load at different times; and the load identification label refers to an identifier after encoding the dynamic load description.

[0032] In this embodiment, determining the voltage over-limit level of the smart socket front-end voltage under over- and under-voltage conditions based on the load identification tag and the load bias effect can be achieved through the following steps: The basic over / under voltage limit is obtained by matching the preset load voltage threshold with the load identification tag; The sampled voltage is corrected in real time based on the load bias effect to generate a steady-state voltage limit value that adapts to the current load characteristics. The voltage over-limit level at the front end of the smart socket under over- and under-voltage conditions is determined by the basic over- and under-voltage limits and the steady-state voltage limit value.

[0033] In practice, the smart socket first stores a preset load voltage threshold table, categorized by load identification tags. Tags include type, power, and sensitivity level. For example, "resistive-high power-low sensitivity" corresponds to an overvoltage threshold of 242V and an undervoltage threshold of 198V; "capacitive-low power-high sensitivity" corresponds to an overvoltage of 231V and an undervoltage of 209V. The current load identification tag is compared with the tags in the table, and the matching threshold is used as the basic over / undervoltage limit. Next, the current load bias effect is obtained; for example, an inductive load causes a 5% voltage rise, while a capacitive load causes a 3% voltage drop. Real-time sampling voltage is collected. For inductive loads, the sampled voltage is subtracted by 5%; for capacitive loads, the sampled voltage is added by 3%. The corrected voltage value is used as the steady-state voltage limit value adapted to the current load characteristics. Finally, the steady-state voltage limit value is compared with the basic over / undervoltage limits. The voltage levels can be categorized as follows: Level 1: Overvoltage limit 0%–10%; Level 2: 10%–20%; Level 3: Overvoltage limit more than 20%. Similarly, Level 1: Undervoltage limit 0%–10%; Level 2: Undervoltage limit 10%–20%; Level 3: Undervoltage limit more than 20%. Each level is then designated as the voltage limit exceeding the overvoltage or undervoltage condition at the smart socket's input.

[0034] It should be noted that in this application, the preset load voltage threshold refers to the preset upper and lower voltage limits for different loads to operate normally, which serve as the basic standard for judging whether the voltage is abnormal; the basic over / under voltage limit refers to the initial over / under voltage judgment boundary provided for a specific load; the steady-state voltage limit value refers to the voltage value after being corrected by the load bias effect; and the voltage over-limit level refers to the level divided according to the degree of voltage deviation from the basic over / under voltage limit.

[0035] In step S3, a differential disconnection criterion is constructed when the over- and under-voltage protection is triggered in the smart socket access circuit. After the differential disconnection criterion is executed to cut off the load power supply circuit, a reset response strategy corresponding to the front-end voltage of the smart socket is generated. Then, the reset response strategy determines the tolerance adaptation rule of the front-end voltage of the smart socket when the over- and under-voltage fault is cleared.

[0036] In this embodiment, the differential judgment criterion for over / under voltage protection triggering in the smart socket access circuit can be implemented using the following steps: Acquire real-time disconnection data when over / under voltage protection is triggered in the smart socket's access circuit; Based on the real-time interruption data, determine the differential control sequence when over- or under-voltage occurs in the circuit. Extract the alienation judgment criteria when the over / under voltage protection is triggered in the smart socket access circuit from the alienation control sequence.

[0037] In practical implementation, firstly, a data acquisition module is integrated inside the smart socket. This module starts immediately when the over / under voltage protection mechanism is triggered. A voltage sensor collects the voltage value and voltage fluctuation frequency at the moment of triggering, a current sensor collects the real-time current of each load, a load identification module records the connected load identification tags, and a time module marks the triggering time and the execution time of the disconnection action. The collected data serves as the real-time disconnection data for the over / under voltage protection triggering in the smart socket's connected circuit. Then, the real-time disconnection data in the local data buffer is called and categorized according to the sensitivity (high / medium / low) and power level (large / medium / small) in the load identification tags. The disconnection effect of different types of loads when over / under voltage protection is triggered is statistically analyzed: the failure rate when the disconnection delay of highly sensitive loads exceeds 0.5 seconds, and the circuit inrush current value when high-power loads are disconnected first. Based on statistical results, a tripping priority was established: high sensitivity > medium sensitivity > low sensitivity; within the same sensitivity level, low power > medium power > high power. A tripping delay time was set for each load level (0 seconds for high sensitivity, 1 second for medium sensitivity, and 2 seconds for low sensitivity), forming an ordered sequence. This sequence serves as the differential control sequence for over / under voltage protection in the circuit. Finally, a correlation analysis was performed between the tripping priority and delay time in the differential control sequence and the voltage over-limit level in the real-time tripping data. When the voltage over-limit level is level 1, the rule "trip only high-sensitivity loads, delay 0 seconds" was extracted; for level 2, "trip high and medium-sensitivity loads, medium sensitivity delayed by 1 second" was extracted; and for level 3, "trip all loads, in the order of low → medium → high power, with an interval of 2 seconds" was extracted. These correlation rules were then organized into a conditional statement: "If the voltage over-limit level is X, then trip type Y loads, delay by Z seconds." This organized conditional statement serves as the differential tripping criterion for over / under voltage protection triggering in the smart socket connection circuit.

[0038] It should be noted that, in this application, real-time disconnection data refers to the data set reflecting the circuit voltage, current, load, and time status when over- and under-voltage protection is triggered; the differentiated control sequence refers to the differentiated disconnection order and delay rules formulated according to load characteristics; and the differentiated disconnection criterion refers to the rules used to regulate the disconnection behavior when over- and under-voltage protection is triggered, thereby achieving differentiated protection.

[0039] Preferably, in this embodiment, after executing the differential separation criterion to cut off the load power supply circuit, a regression response strategy corresponding to the front-end voltage of the smart socket is generated, referring to... Figure 3 As shown in the figure, this is a flowchart illustrating the process of determining a regressive response strategy in some embodiments of this application. In this embodiment, the determination of the regressive response strategy can be achieved through the following steps: In step S31, the steady-state recovery deviation at the front end of the smart socket after the load power supply circuit is cut off is obtained; In step S32, the restoration delay rule corresponding to the load type is determined based on the steady-state recovery deviation; In step S33, the elastic reset attribute corresponding to the front-end voltage of the smart socket is determined according to the reset delay rule; In step S34, the reset response strategy corresponding to the front-end voltage of the smart socket is determined based on the elastic reset attribute.

[0040] In practice, firstly, after the power supply circuit to the load is cut off, the voltage sensor of the smart socket continuously collects the front-end voltage, recording a value every 0.5 seconds for 10 seconds. The last three voltage values ​​with fluctuations less than ±1% are selected, and the difference between these values ​​and the rated voltage of 220V is calculated. This difference represents the steady-state recovery deviation of the smart socket after the power supply circuit to the load is cut off. Next, the load type is categorized based on the load identification tag, and a delay time is set according to the steady-state recovery deviation. For highly sensitive loads: a delay of 1 second for deviations ≤ ±2V, and a delay of 3 seconds for deviations > ±2V; for moderately sensitive loads: a delay of 2 seconds for deviations ≤ ±5V, and a delay of 4 seconds for deviations > ±5V; for low-sensitive loads: a delay of 3 seconds for deviations ≤ ±10V, and a delay of 5 seconds for deviations > ±10V, forming a recovery delay rule corresponding to each load type. Then, based on the recovery delay rule, a flexible recovery attribute is set. For highly sensitive loads, a 1-second delay corresponds to "Instant Reset - Low Elasticity," and a 3-second delay corresponds to "Delayed Reset - Medium Elasticity." For medium-sensitive loads, a 2-second delay corresponds to "Regular Reset - Medium Elasticity," and a 4-second delay corresponds to "Delayed Reset - High Elasticity." Low-sensitive loads are similarly categorized, clearly defining the reset speed and elasticity level. This defined reset speed and elasticity level are used as the elastic reset attribute corresponding to the smart socket's front-end voltage. Finally, the reset order is sorted according to the elastic reset attribute: "Instant Reset - Low Elasticity" takes priority, followed by "Regular Reset - Medium Elasticity," and finally "Delayed Reset - High Elasticity." Within the same attribute, loads are sorted from low power to high power. After each type of load resets, the voltage is monitored for 1 second; if stable, the monitoring continues. The results after sorting are used as the reset response strategy corresponding to the smart socket's front-end voltage.

[0041] It should be noted that, in this application, steady-state recovery deviation refers to the difference between the stable voltage at the front end of the smart socket and the rated voltage after the load is disconnected; recovery delay rule refers to the rule used to regulate the time interval of recovery for different loads and protect the load; elastic recovery attribute refers to the attribute that reflects the recovery speed and the ability to adapt to voltage fluctuations; recovery response strategy refers to the order and monitoring rules for restoring power to the load based on the elastic recovery attribute.

[0042] In this embodiment, the tolerance adaptation rule for the voltage at the front end of the smart socket when the over / under voltage fault is cleared, determined by the regression response strategy, can be achieved through the following steps: The tolerance adaptation gradient of the voltage when the over- or under-voltage fault is cleared is determined according to the aforementioned regression response strategy; The self-controlled recovery trajectory of the voltage when the over- or under-voltage fault is cleared is determined based on the tolerance adaptation gradient. The tolerance adaptation rules for the voltage at the front end of the smart socket when the over / under voltage fault is cleared are determined based on the self-controlled recovery trajectory.

[0043] In specific implementation, firstly, the load reversion order and corresponding elastic reversion attributes are extracted from the reversion response strategy. For highly sensitive loads that revert instantly, a tolerance gradient of ±2V is set; for moderately sensitive loads that revert normally, it is set to ±5V; and for low-sensitive loads that revert with a delay, it is set to ±10V. These are arranged according to reversion priority, and the resulting gradient is used as the voltage tolerance adaptation gradient when over / under voltage faults are cleared. In other embodiments, other methods can be used to determine the voltage tolerance adaptation gradient when over / under voltage faults are cleared; this is not limited here. Then, using the rated voltage of 220V as a baseline, recovery stages are divided according to the tolerance adaptation gradient. The first stage corresponds to highly sensitive loads, where the voltage needs to be gradually adjusted from the fault clearing value to 220V±2V, taking 2 seconds; the second stage corresponds to moderately sensitive loads, adjusting to 220V±5V, taking another 3 seconds; the third stage corresponds to low-sensitive loads, adjusting to 220V±10V. The result after this division is used as the self-controlled recovery trajectory of the voltage when over / under voltage faults are cleared. Finally, based on the tolerance range and duration of each stage of the self-controlled recovery trajectory, rules are formulated. These rules can be as follows: after a highly sensitive load recovers, the voltage must stabilize at 220V±2V for at least 10 seconds; after a medium-sensitive load recovers, it must stabilize at 220V±5V for at least 8 seconds; and after a low-sensitive load recovers, it must stabilize at 220V±10V for at least 5 seconds. This yields the tolerance adaptation rules for the voltage at the front end of the smart socket when the over / under voltage fault is cleared.

[0044] It should be noted that in this application, the tolerance adaptation gradient refers to the voltage allowable fluctuation gradient set according to the load recovery priority; the self-control recovery trajectory refers to the path of the voltage gradually recovering from the fault clearance value to the corresponding tolerance range; and the tolerance adaptation rule refers to the specified fluctuation range and stabilization time of the voltage after the over-voltage and under-voltage faults are cleared.

[0045] In step S4, the power supply planning table of the current power supply status in the smart socket access circuit is adaptively reset according to the voltage over-limit level and the tolerance adaptation rule.

[0046] In specific implementation, the adaptive reset of the power supply planning table for the current power supply status of the smart socket access circuit based on the voltage over-limit level and the tolerance adaptation rule can be achieved in the following way: First, the main control chip of the smart socket retrieves the current power supply planning table and reads the voltage over-limit level data and the tolerance adaptation rule. If the voltage over-limit level is level 3, and the tolerance adaptation rule requires the voltage fluctuation range of highly sensitive loads to be ≤±2%, then multi-level adjustments are performed in the power supply planning table: the power supply priority of "high power - low sensitivity" loads (such as electric heaters) is reduced from level 3 to level 5, the power supply period is shortened from 18:00-23:00 to 20:00-22:00, and the power limit is reduced from 2000W to 1600W; a trigger condition of "temporarily upgrading to level 1 priority when voltage fluctuation exceeds ±1%" is added for "high sensitivity - low power" loads (such as computers), and their power supply period is locked to be available at all times. Then, if the voltage exceedance level is Level 1, and the tolerance adaptation rules allow the voltage fluctuation range of low-sensitivity loads to be extended to ±7%, then the "low-sensitivity-medium power" loads (such as washing machines) in the power supply plan are adjusted: the power supply period is extended from 9:00-15:00 to 8:00-17:00, the power limit is increased from 1200W to 1320W, and the original "peak-hour power limit" clause is canceled. After the adjustment is completed, the main control chip verifies the power supply plan to ensure that the load parameters do not conflict (e.g., the total power does not exceed the circuit's maximum capacity). After successful verification, the changes are updated to local storage and take effect in real time. Simultaneously, an adjustment log is recorded for future traceability, ensuring that the power supply plan meets safety requirements while maximizing adaptation to actual operating conditions.

[0047] It should be noted that, in this application, the power supply planning table refers to the scheduling scheme that records the power supply priority, power supply period and power limit of each load in the circuit connected to the smart socket; adaptive reset refers to the process of automatically adjusting the parameters of the power supply planning table according to the voltage over-limit level and tolerance adaptation rules.

[0048] Therefore, this application demonstrates that, given the lack of specificity in existing smart socket over / under voltage protection, it improves the accuracy and adaptability of the protection mechanism. Specifically, by continuously collecting front-end voltage status information when the smart socket activates the over / under voltage protection mechanism, it can capture the complete voltage characteristics under over / under voltage conditions, providing high-quality data support for subsequent analysis, avoiding protection decision biases caused by insufficient information, and significantly enhancing the ability to perceive abnormal voltage states. By extracting load bias utility, identifying load attributes, and determining voltage over-limit levels, it can quantify the actual impact of voltage anomalies in conjunction with load characteristics, achieving refined grading of voltage over-limits, breaking the limitations of traditional fixed threshold judgments, and improving the adaptability to different load protection needs. By constructing differentiated fault criteria, generating reset response strategies, and determining tolerance adaptation rules, it can achieve differentiated faulting during over / under voltage protection and orderly reset after fault clearance, reducing unnecessary power outages, balancing protection effectiveness and power convenience, and improving the safety and efficiency of power restoration. By adaptively resetting the power supply planning table based on voltage over-limit levels and tolerance adaptation rules, the power supply scheme can dynamically adapt to the grid status and load characteristics, realize optimized resource scheduling, form a closed-loop intelligent management and control system, and improve the stability and reliability of the entire power supply system.

[0049] In summary, the technical solution adopted in this application can perform differentiated adaptation and control of the power supply to the load under the activation of the over- and under-voltage protection mechanism, so as to improve the adaptability of the smart socket to complex working conditions.

[0050] Example 2: This application provides a smart socket control system based on an over / under voltage protector, referencing... Figure 4 As shown in the figure, this is a modular structure diagram of a smart socket control system based on an over / under voltage protector according to this embodiment of the present application. The control system includes: The information acquisition module 100 is used to continuously acquire voltage status information at the front end of the smart socket when the smart socket is connected to the circuit and the over / under voltage protection mechanism is activated. The attribute identification module 200 is used to extract the load bias effect of the smart socket under different working conditions, identify the load attributes of the voltage state information, generate a load identification tag on the load side of the smart socket in the circuit, and then determine the voltage over-limit level of the front end of the smart socket under over- and under-voltage conditions based on the load identification tag and the load bias effect. The disconnection judgment module 300 is used to construct the differential disconnection criterion when the over- and under-voltage protection is triggered in the smart socket access circuit. After the differential disconnection criterion is executed to cut off the load power supply circuit, a reset response strategy corresponding to the front-end voltage of the smart socket is generated. Then, the reset response strategy determines the tolerance adaptation rule of the front-end voltage of the smart socket when the over- and under-voltage fault is cleared. The reset control module 400 is used to adaptively reset the power supply planning table of the current power supply status in the smart socket access circuit according to the voltage over-limit level and the tolerance adaptation rule.

[0051] This application is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of this application. It will be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, generate instructions for implementing the process. Figure 1 One or more processes and / or boxes Figure 1 A device that provides the functions specified in one or more boxes.

[0052] Those skilled in the art will understand that all or part of the steps in the various methods of the above embodiments can be implemented by a program instructing related hardware. The program can be stored in a computer-readable storage medium, including read-only memory (ROM), random access memory (RAM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), one-time programmable read-only memory (OTPROM), electrically-Erasable Programmable Read-Only Memory (EEPROM), compactdisc read-only memory (CD-ROM) or other optical disc storage, disk storage, magnetic tape storage, or any other computer-readable medium capable of carrying or storing data.

[0053] It should also be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

Claims

1. A method for controlling a smart socket based on an over / under voltage protector, characterized in that, The control method includes the following steps: When the smart socket is connected to the circuit and the over / under voltage protection mechanism is activated, the voltage status information at the front end of the smart socket is continuously collected. Extract the load bias effect of the smart socket under different operating conditions, identify the load attributes of the voltage state information, generate a load identification tag on the load side of the smart socket in the circuit, and then determine the voltage over-limit level of the front end of the smart socket under over- and under-voltage conditions based on the load identification tag and the load bias effect. A differential disconnection criterion is constructed when the over- and under-voltage protection is triggered in the smart socket access circuit. After the load power supply circuit is cut off by executing the differential disconnection criterion, a reset response strategy corresponding to the front-end voltage of the smart socket is generated. Then, the reset response strategy determines the tolerance adaptation rule of the front-end voltage of the smart socket when the over- and under-voltage fault is cleared. The power supply planning table for the current power supply status in the smart socket access circuit is adaptively reset based on the voltage over-limit level and the tolerance adaptation rule.

2. The intelligent socket control method based on over / under voltage protector as described in claim 1, characterized in that, The over / under voltage protection mechanism refers to the functional module inside the smart socket used to monitor whether the voltage exceeds the safe range and trigger protection action when it does.

3. The intelligent socket control method based on over / under voltage protector as described in claim 1, characterized in that, Extracting the load bias effect of smart sockets under different operating conditions specifically includes: The steady-state bias parameters for load connection are determined based on the voltage fluctuation curves and current response characteristics of the smart socket under different operating conditions. Based on the steady-state bias parameters, determine the load bias range under different operating conditions; The load bias effect of the smart socket under different operating conditions is determined by all load bias ranges.

4. The intelligent socket control method based on over / under voltage protector as described in claim 1, characterized in that, The load bias effect refers to the specific impact of the load on the smart socket connection circuit under different operating conditions through biasing.

5. The intelligent socket control method based on over / under voltage protector as described in claim 1, characterized in that, The voltage over-limit levels at the front end of the smart socket under over / under voltage conditions, determined by the load identification tag and the load bias effect, specifically include: The basic over / under voltage limit is obtained by matching the preset load voltage threshold with the load identification tag; The sampled voltage is corrected in real time based on the load bias effect to generate a steady-state voltage limit value that adapts to the current load characteristics. The voltage over-limit level at the front end of the smart socket under over- and under-voltage conditions is determined by the basic over- and under-voltage limits and the steady-state voltage limit value.

6. The intelligent socket control method based on over / under voltage protector as described in claim 1, characterized in that, The specific differential judgment criteria for over / under voltage protection triggering in the smart socket access circuit include: Acquire real-time disconnection data when over / under voltage protection is triggered in the smart socket's access circuit; Based on the real-time interruption data, determine the differential control sequence when over- or under-voltage occurs in the circuit. Extract the alienation judgment criteria when the over / under voltage protection is triggered in the smart socket access circuit from the alienation control sequence.

7. The intelligent socket control method based on over / under voltage protector as described in claim 1, characterized in that, The aforementioned differential tripping criterion refers to the rules used to regulate the tripping behavior when over- or under-voltage protection is triggered, thereby achieving differentiated protection.

8. The intelligent socket control method based on over / under voltage protector as described in claim 1, characterized in that, The tolerance adaptation rules for the voltage at the front end of the smart socket when the over / under voltage fault is cleared, determined by the regression response strategy, specifically include: The tolerance adaptation gradient of the voltage when the over- or under-voltage fault is cleared is determined according to the aforementioned regression response strategy; The self-controlled recovery trajectory of the voltage when the over- or under-voltage fault is cleared is determined based on the tolerance adaptation gradient. The tolerance adaptation rules for the voltage at the front end of the smart socket when the over / under voltage fault is cleared are determined based on the self-controlled recovery trajectory.

9. A smart socket control method based on an over / under voltage protector as described in claim 1, characterized in that, The power supply planning table refers to a scheduling scheme that records the power supply priority, power supply period, and power limit of each load in the circuit connected to the smart socket.

10. A smart socket control system based on an over / under voltage protector, used to execute a smart socket control method based on an over / under voltage protector as described in any one of claims 1 to 9, characterized in that, The control system includes: The information acquisition module is used to continuously collect voltage status information at the front end of the smart socket when the smart socket is connected to the circuit and the over / under voltage protection mechanism is activated. The attribute identification module is used to extract the load bias effect of the smart socket under different operating conditions, identify the load attributes of the voltage state information, generate a load identification tag on the load side of the smart socket in the circuit, and then determine the voltage over-limit level of the front end of the smart socket under over- and under-voltage conditions based on the load identification tag and the load bias effect. The disconnection judgment module is used to construct the differential disconnection criteria when the over- and under-voltage protection is triggered in the smart socket access circuit. After the differential disconnection criteria are executed to cut off the load power supply circuit, a reset response strategy corresponding to the front-end voltage of the smart socket is generated. Then, the reset response strategy determines the tolerance adaptation rule of the front-end voltage of the smart socket when the over- and under-voltage fault is cleared. The reset control module is used to adaptively reset the power supply planning table of the current power supply status in the smart socket access circuit according to the voltage over-limit level and the tolerance adaptation rule.

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