Low-voltage fuse and self-adaptive fusing method thereof

Abstract

The invention provides a low-voltage fuse and an adaptive fusing method thereof, and the system comprises a data collection module which is used for collecting multi-class operation state data of the low-voltage fuse based on a multi-class sensor, and carrying out the real-time fault detection of a circuit based on the multi-class operation state data; the abnormity determination module is used for transmitting fault information to the management terminal when a fault exists, analyzing the fault based on the management terminal, and determining a relative size relationship between a circuit current value and a rated current value of the low-voltage fuse under the current fault and a duration parameter of the circuit current value; and the self-adaptive fusing control module is used for determining an overload type and an overload multiple of the low-voltage fuse based on the relative size relationship and the duration parameter, and controlling the low-voltage fuse to execute self-adaptive fusing operation based on the overload type and the overload multiple. And the reliability and the efficiency of solving faults and hidden dangers are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of device control and signal transmission, and particularly relates to a low-voltage fuse and an adaptive fusing method thereof. Background Art

[0002] Currently, low-voltage fuses are widely used in low-voltage power distribution systems and play a crucial protective role. When faults such as overload and short circuit occur in the circuit, the fuse element of the fuse melts to cut off the circuit, thereby protecting the equipment and lines from damage.

[0003] However, traditional low-voltage fuses usually operate based on fixed fusing characteristics. However, this fixed fusing method has many problems in practical applications. In complex electrical systems, the load types are diverse, such as containing a large number of inductive loads, capacitive loads, or pulse loads. For the inrush current generated during the startup of inductive loads or the charging current of capacitive loads, these are not fault currents but may cause traditional fuses to mis-fuse. At the same time, in the case of long-term low-multiple overload, traditional fuses may not be able to melt in time, thus unable to effectively protect the equipment and lines in the circuit, resulting in a significant reduction in the response efficiency and response effect to circuit faults.

[0004] Therefore, in order to overcome the above defects, the present invention provides a low-voltage fuse and an adaptive fusing method thereof. Summary of the Invention

[0005] The present invention provides a low-voltage fuse and an adaptive fusing method thereof, which are used to collect multi-category operation data of the low-voltage fuse and perform real-time fault detection on the multi-category operation data, so as to facilitate timely response to faults when they occur. Secondly, when it is determined that there is a fault, the fault information is transmitted to the management terminal for analysis, so as to effectively determine the overload category and overload multiple according to the relative magnitude relationship between the circuit current value and the rated current value of the low-voltage fuse and the duration parameter of the circuit current value under the current fault, providing reliable data support for the adaptive fusing control of the low-voltage fuse. Finally, the adaptive fusing control of the low-voltage fuse is realized according to the obtained overload category and overload multiple, improving the reliability and efficiency of solving faults and potential hazards.

[0006] The present invention provides a low-voltage fuse, including:

[0007] A data acquisition module, configured to collect multi-category operation state data of the low-voltage fuse based on multi-category sensors respectively, and perform real-time fault detection on the circuit based on the multi-category operation state data.

[0008] Anomaly determination module, configured to, when a fault occurs, transmit the fault information to the management terminal, and analyze the fault based on the management terminal to determine the relative magnitude relationship between the circuit current value and the rated current value of the low-voltage fuse and the duration parameter of the circuit current value under the current fault;

[0009] Adaptive fusing control module, configured to determine the overload category and overload multiple of the low-voltage fuse based on the relative magnitude relationship and the duration parameter, and control the low-voltage fuse to perform an adaptive fusing operation based on the overload category and overload multiple.

[0010] Preferably, for a low-voltage fuse, the data acquisition module includes:

[0011] Sensor position determination unit, configured to:

[0012] Obtain the structural framework of the low-voltage fuse, and at the same time, determine the supervision items for the low-voltage fuse based on the management terminal, and extract the item attributes of the supervision items;

[0013] Determine the project monitoring points based on the item attributes according to the structural framework of the low-voltage fuse, and obtain the layout positions of multi-category sensors for the project monitoring points;

[0014] Data acquisition unit, configured to guide the layout of the multi-category sensors based on the layout positions, and after the layout is completed, control the multi-category sensors to concurrently monitor the status of the low-voltage fuse to obtain multi-category operation status data of the low-voltage fuse.

[0015] Preferably, for a low-voltage fuse, the data acquisition module includes:

[0016] Data monitoring unit, configured to perform real-time data visualization processing on the obtained multi-category operation status data respectively, and determine the value distribution of each category of operation status data based on the data visualization processing;

[0017] Fault detection unit, configured to determine the safe value range of each category of operation status data based on the safe operation protocol of the low-voltage fuse, and superimpose and visualize the safe value range and the value distribution of the corresponding category of operation status data;

[0018] Based on the superimposed visualization, determine in real time whether there is operation status data exceeding the corresponding safe value range, and when there is, determine that the circuit has a fault.

[0019] Preferably, for a low-voltage fuse, the anomaly determination module includes:

[0020] Information locking unit, configured to, when a fault occurs, lock the anomaly starting points of the multi-category operation status data currently collected by the multi-category sensors respectively, and obtain the fault information based on the anomaly starting point locking results;

[0021] An information transmission unit, configured to build a parallel communication link between multi-category sensors and a management terminal, perform routing conversion on fault information with an abnormal starting point locked based on the parallel communication link, and synchronize the fault information after routing conversion to the management terminal in real time;

[0022] A fault analysis unit, configured to:

[0023] Based on the management terminal's screening of relevant information from the fault information synchronized in real time according to the fusing protocol of the low-voltage fuse, extract the circuit current value of the low-voltage fuse;

[0024] Meanwhile, serialize the circuit current value of the low-voltage fuse based on the time series, and based on the serialization, obtain the variation amplitude of the circuit current value of the low-voltage fuse with respect to the time series;

[0025] Determine the rated current value of the low-voltage fuse based on the factory configuration parameters of the low-voltage fuse;

[0026] A parameter determination unit, configured to:

[0027] Generate a measurement baseline based on the rated current value, and virtually display both the measurement baseline and the variation amplitude of the circuit current value with respect to the time series in a two-dimensional coordinate system;

[0028] Based on the virtual display result, obtain the relative magnitude relationship between the circuit current value and the rated current value at different time points, and lock the unit time points at which the circuit current value is greater than the rated current value;

[0029] Based on the locking result, count the number of unit time points to obtain the duration parameter of the circuit current value.

[0030] Preferably, for a low-voltage fuse, the parameter determination unit includes:

[0031] A data acquisition sub-unit, configured to acquire the relative magnitude relationship between the obtained circuit current value and the rated current value of the low-voltage fuse and the duration parameter of the circuit current value;

[0032] A data storage sub-unit, configured to associate the relative magnitude relationship and the duration parameter with the received fault information, and record and store the relative magnitude relationship, the duration parameter, and the fault information based on the association result.

[0033] Preferably, for a low-voltage fuse, the adaptive fusing control module includes:

[0034] A result acquisition unit, configured to acquire the relative magnitude relationship between the obtained circuit current value and the rated current value of the low-voltage fuse and the duration parameter, and determine a target data sample in which the circuit current value is greater than the rated current value based on the relative magnitude relationship;

[0035] A data analysis unit, configured to:

[0036] Mark the target data samples in the data sequence corresponding to the original circuit current values, and segment the target data samples at consecutive time points based on the sample marking results according to the duration parameter to obtain the sub-duration parameters of each segment;

[0037] Compare the sub-duration parameter of each segment with a preset time threshold for the first time, and determine the target data samples with sub-duration parameters less than or equal to the preset time threshold as instantaneous overloads, and determine the target data samples with sub-duration parameters greater than the preset time threshold as continuous overloads;

[0038] Obtain the overload category of the low-voltage fuse based on the instantaneous overload and continuous overload;

[0039] Meanwhile, compare the instantaneous overload and continuous overload with the corresponding step overload thresholds for the second time respectively, and obtain the overload levels of the instantaneous overload and continuous overload respectively based on the second comparison;

[0040] Extract the operating temperature of the low-voltage fuse under the fault from the received fault information, and use the operating temperature as an auxiliary index;

[0041] Correct the overload level based on the auxiliary index according to the mutual limiting relationship between temperature and current, and obtain the overload multiples of the instantaneous overload and continuous overload respectively based on the correction results;

[0042] An adaptive fusing unit, configured to control the low-voltage fuse to perform an adaptive fusing operation based on the overload category and overload multiple.

[0043] Preferably, for a low-voltage fuse, the adaptive fusing unit includes:

[0044] A fusing parameter determination subunit, configured to:

[0045] Obtain the obtained overload category and overload multiple, and when the overload category is instantaneous overload and the overload multiple is greater than the preset safe overload threshold, determine that the low-voltage fuse performs instantaneous fusing;

[0046] When the overload category is continuous overload, retrieve the inverse time-delay curve of the low-voltage fuse from the experimental database based on the material parameters of the low-voltage fuse, and map the overload multiple in the inverse time-delay curve to obtain the adaptive fusing time of the low-voltage fuse;

[0047] A fusing control subunit, configured to control the low-voltage fuse to perform an adaptive fusing operation based on the determined instantaneous fusing and adaptive fusing time.

[0048] Preferably, for a low-voltage fuse, the adaptive fusing control module includes:

[0049] A monitoring unit, configured to configure a monitoring thread for a low-voltage fuse and perform real-time monitoring on the adaptive fusing operation of the low-voltage fuse based on the monitoring thread;

[0050] An anomaly warning unit and a recording unit, configured to:

[0051] Determine the result of the adaptive fusing operation of the low-voltage fuse based on the real-time monitoring result, and when the low-voltage fuse fails to fuse successfully, start a pre-emergency plan to perform fusing control on the low-voltage fuse. Meanwhile, send a warning notification to the management terminal;

[0052] When the fusing is successful, obtain the fusing time, record the fusing time, and generate a fusing log of the low-voltage fuse.

[0053] The present invention provides an adaptive fusing method for a low-voltage fuse, including:

[0054] Step 1: Collect multi-category operation status data of the low-voltage fuse based on multi-category sensors respectively, and perform real-time fault detection on the circuit based on the multi-category operation status data;

[0055] Step 2: When a fault exists, transmit the fault information to the management terminal, analyze the fault based on the management terminal, and determine the relative magnitude relationship between the circuit current value and the rated current value of the low-voltage fuse and the duration parameter of the circuit current value under the current fault;

[0056] Step 3: Determine the overload category and overload multiple of the low-voltage fuse based on the relative magnitude relationship and the duration parameter, and control the low-voltage fuse to perform an adaptive fusing operation based on the overload category and overload multiple.

[0057] Preferably, in an adaptive fusing method for a low-voltage fuse, in Step 1, collecting multi-category operation status data of the low-voltage fuse based on multi-category sensors respectively includes:

[0058] Obtain the structural framework of the low-voltage fuse. Meanwhile, determine the supervision items for the low-voltage fuse based on the management terminal, and extract the item attributes of the supervision items;

[0059] Determine project monitoring points based on the item attributes according to the structural framework of the low-voltage fuse, and obtain the layout positions of multi-category sensors for the project monitoring points;

[0060] Perform layout guidance on the multi-category sensors based on the layout positions, and after the layout is completed, control the multi-category sensors to perform status monitoring on the low-voltage fuse in parallel to obtain multi-category operation status data of the low-voltage fuse.

[0061] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0062] By collecting multi-category operation data of the low-voltage fuse and performing real-time fault detection on the multi-category operation data, it is convenient to respond to the fault in a timely manner when a fault occurs. Secondly, when it is determined that a fault exists, the fault information is transmitted to the management terminal for analysis, so as to effectively determine the overload category and overload multiple according to the relative magnitude relationship between the circuit current value and the rated current value of the low-voltage fuse under the current fault and the duration parameter of the circuit current value, providing reliable data support for the adaptive fusing control of the low-voltage fuse. Finally, the adaptive fusing control of the low-voltage fuse is realized according to the obtained overload category and overload multiple, improving the reliability and efficiency of solving faults and potential hazards.

[0063] Other features and advantages of the present invention will be described in the following specification, and part of them will be obvious from the specification or understood by implementing the present invention. The objectives and other advantages of the present invention can be achieved and obtained through the structure specifically pointed out in this application document.

[0064] The technical solution of the present invention will be further described in detail below through the accompanying drawings and embodiments. Description of the Drawings

[0065] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation to the present invention. In the drawings:

[0066] Figure 1 It is a structural diagram of a low-voltage fuse in an embodiment of the present invention;

[0067] Figure 2 It is a structural diagram of a data acquisition module in a low-voltage fuse in an embodiment of the present invention;

[0068] Figure 3 It is a flowchart of an adaptive fusing method for a low-voltage fuse in an embodiment of the present invention. Detailed Embodiment

[0069] The following describes the preferred embodiments of the present invention with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention and are not used to limit the present invention.

[0070] This embodiment provides a low-voltage fuse, as Figure 1 shown, including:

[0071] A data acquisition module, configured to collect multi-category operation state data of the low-voltage fuse based on multi-category sensors respectively, and perform real-time fault detection on the circuit based on the multi-category operation state data;

[0072] An abnormality determination module, configured to, when a fault occurs, transmit fault information to a management terminal, and analyze the fault based on the management terminal to determine the relative magnitude relationship between the circuit current value and the rated current value of the low-voltage fuse and the duration parameter of the circuit current value under the current fault;

[0073] An adaptive fusing control module, configured to determine the overload category and overload multiple of the low-voltage fuse based on the relative magnitude relationship and the duration parameter, and control the low-voltage fuse to perform an adaptive fusing operation based on the overload category and overload multiple.

[0074] In this embodiment, multiple types of sensors are deployed on the low-voltage fuse in advance, such as temperature sensors, current sensors, voltage sensors, etc.

[0075] In this embodiment, the multiple types of operating state data refer to the operating data of the low-voltage fuse in different aspects, including operating current and operating temperature, etc.

[0076] In this embodiment, the rated current value is a configuration parameter of the low-voltage fuse itself, used to represent the maximum current value that the low-voltage fuse can pass.

[0077] In this embodiment, the duration parameter refers to the length of time that the circuit current value operates under the current fault.

[0078] In this embodiment, the overload category refers to whether the current value caused by the current fault is a pulse overload or a continuous overload, so as to facilitate determining whether an adaptive fusing operation needs to be performed.

[0079] In this embodiment, the overload multiple refers to the degree to which the current overload exceeds the overload threshold of the low-voltage fuse, and the purpose is to determine parameters such as the adaptive fusing rate of the low-voltage fuse.

[0080] The working principle and beneficial effects of the above technical solution are as follows: By collecting multiple types of operating data of the low-voltage fuse and performing real-time fault detection on the multiple types of operating data, it is convenient to respond to the fault in a timely manner when a fault occurs. Secondly, when it is determined that a fault exists, the fault information is transmitted to the management terminal for analysis, so as to effectively determine the overload category and overload multiple according to the relative magnitude relationship between the circuit current value and the rated current value of the low-voltage fuse and the duration parameter of the circuit current value under the current fault, providing reliable data support for the adaptive fusing control of the low-voltage fuse. Finally, the adaptive fusing control of the low-voltage fuse is realized according to the obtained overload category and overload multiple, improving the reliability and efficiency of solving faults and potential hazards.

[0081] In one embodiment, a low-voltage fuse is provided, as Figure 2 shown, a data acquisition module, including:

[0082] A sensor position determination unit, configured to:

[0083] Obtain the structural framework of the low-voltage fuse. Meanwhile, based on the management terminal, determine the supervision items for the low-voltage fuse, and extract the item attributes of the supervision items;

[0084] Based on the item attributes, determine the item monitoring points according to the structural framework of the low-voltage fuse, and obtain the layout positions of multi-category sensors for the item monitoring points;

[0085] A data acquisition unit, configured to perform layout guidance on the multi-category sensors based on the layout positions, and after the layout is completed, control the multi-category sensors to simultaneously monitor the status of the low-voltage fuse to obtain multi-category operation status data of the low-voltage fuse.

[0086] In this embodiment, the structural framework refers to the structural situation of the low-voltage fuse. For example, it can be the components included in the low-voltage fuse and the connection relationships between the components, etc.

[0087] In this embodiment, the supervision items refer to the types of supervision that need to be carried out when supervising the low-voltage fuse. For example, it can be to monitor the working temperature and working current value of the low-voltage fuse.

[0088] In this embodiment, the item attributes refer to the requirements and standards that need to be monitored when performing supervision item monitoring, etc.

[0089] In this embodiment, the item monitoring points refer to the specific positions where corresponding sensors are deployed when monitoring each supervision item.

[0090] The working principle and beneficial effects of the above technical solution are: By determining the structural framework and supervision items of the low-voltage fuse, it is possible to accurately and effectively determine the deployment positions of multi-category sensors on the low-voltage fuse. Secondly, according to the determined deployment positions, perform layout guidance on the multi-category sensors, so as to effectively layout the multi-category sensors according to the deployment guidance results, and after the layout, effectively collect the multi-category operation status data of the low-voltage fuse, enabling a comprehensive understanding of its physical structure and components, thereby specifically determining the item monitoring points, realizing the optimization of sensor layout. Different types of sensors (such as temperature sensors, current sensors, etc.) can be reasonably laid out according to their respective corresponding monitoring points, avoiding mutual interference between sensors, and at the same time ensuring that each sensor can exert its maximum monitoring efficiency, which helps to meet the monitoring requirements for low-voltage fuses in different application scenarios, helps to enhance the fault detection and prediction capabilities, and can detect potential fault hazards of the fuse in advance.

[0091] In one embodiment, a low-voltage fuse is provided, and a data acquisition module includes:

[0092] A data monitoring unit, configured to perform real-time data visualization processing on the obtained multi-category operation status data respectively, and determine the value distribution of each category of operation status data based on the data visualization processing;

[0093] A fault detection unit, configured to determine the safe value range of each category of operation status data based on the safe operation protocol of the low-voltage fuse, and perform superposition visualization on the safe value range and the value distribution of the corresponding category of operation status data;

[0094] Based on the superposition visualization, it is determined in real time whether there is operation status data exceeding the corresponding safe value range, and when it exists, it is determined that the circuit has a fault.

[0095] In this embodiment, the data visualization processing refers to visually displaying the obtained multi-category operation status in a visual window or visual interface.

[0096] In this embodiment, the value distribution refers to the value change situation of each category of operation status data.

[0097] In this embodiment, the safe operation protocol refers to the indicators or parameters required for the safe operation of the low-voltage fuse, such as the allowable current value range, etc.

[0098] In this embodiment, the superposition visualization refers to parallelly displaying the safe value range of each category of operation status data and the value distribution of each category of operation status data, so as to facilitate determining the size relationship between the value of each category of operation status data and the corresponding safe value range.

[0099] The working principle and beneficial effects of the above technical solution are: by performing visualization processing on the obtained multi-category operation status data, the value distribution of each category of operation status data is accurately and effectively determined. Secondly, according to the safe operation protocol of the low-voltage fuse, the safe value range of each category of operation status data is effectively locked, and superposition visualization is performed with the value distribution of each category of operation status data, so as to accurately and effectively determine whether the operation status data is abnormal, and then accurately and effectively determine whether the circuit has a fault, providing a reliable reference basis for circuit protection.

[0100] In one embodiment, a low-voltage fuse is provided, and the abnormal determination module includes:

[0101] An information locking unit, configured to, when a fault occurs, lock the abnormal starting points of the multi-category operation status data currently collected by the multi-category sensors respectively, and obtain fault information based on the abnormal starting point locking result;

[0102] An information transmission unit, configured to establish a parallel communication link between multi-category sensors and a management terminal, perform routing conversion on fault information with an abnormal starting point locked based on the parallel communication link, and synchronize the fault information after routing conversion to the management terminal in real time;

[0103] A fault analysis unit, configured to:

[0104] Based on the management terminal's screening of relevant information from the fault information synchronized in real time according to the fusing protocol of the low-voltage fuse, extract the circuit current value of the low-voltage fuse;

[0105] Meanwhile, serialize the circuit current value of the low-voltage fuse based on the time series, and based on the serialization, obtain the variation amplitude of the circuit current value of the low-voltage fuse with respect to the time series;

[0106] Determine the rated current value of the low-voltage fuse based on the factory configuration parameters of the low-voltage fuse;

[0107] A parameter determination unit, configured to:

[0108] Generate a measurement baseline based on the rated current value, and virtually display both the measurement baseline and the variation amplitude of the circuit current value with respect to the time series in a two-dimensional coordinate system;

[0109] Based on the virtual display result, obtain the relative magnitude relationship between the circuit current value and the rated current value at different time points, and lock the unit time points where the circuit current value is greater than the rated current value;

[0110] Based on the locking result, count the number of unit time points to obtain the duration parameter of the circuit current value.

[0111] In this embodiment, locking of the abnormal starting point refers to determining the position where the value starts to be abnormal in the multi-category operation state data.

[0112] In this embodiment, routing conversion refers to performing format conversion on the fault information according to the communication requirements of the parallel communication link, so as to facilitate data transmission in the parallel communication link.

[0113] In this embodiment, the fusing protocol is known in advance and is used to represent the specific standards and conditions, etc. that the low-voltage fuse follows when fusing.

[0114] In this embodiment, relevant information screening refers to screening out data parameters related to the fusing conditions or requirements from the fault information, and specifically, it can be extracting the current information causing the fault from the fault information.

[0115] In this embodiment, the variation amplitude of the value refers to the variation of the circuit current value of the low-voltage fuse corresponding to the time development.

[0116] In this embodiment, the factory configuration parameters refer to the performance parameters of the low-voltage fuse itself.

[0117] In this embodiment, the measurement baseline refers to generating a virtual straight line based on the value of the rated current. The purpose is to determine whether the variation range of the circuit current value of the low-voltage fuse with respect to the time series exceeds the rated current value of the low-voltage fuse, and when it exceeds the rated current value, the corresponding specific time, duration, etc.

[0118] In this embodiment, the unit time point refers to the specific time point when the circuit current value is greater than the rated current value.

[0119] The working principle and beneficial effects of the above technical solution are as follows: By determining the abnormal starting point of multi-category operation state data according to the fault, the fault information is locked based on the abnormal starting point, and the locked fault information is transmitted to the management terminal through the constructed parallel communication link. Secondly, by screening the information related to the obtained fault information by the management terminal, the current circuit current value of the low-voltage fuse is accurately and effectively determined, and the obtained circuit current value is serialized to accurately and effectively determine the variation range of the circuit current value. Finally, by determining the rated current value of the low-voltage fuse and comparing the relative magnitude relationship between the obtained variation range of the circuit current value and the rated current value, the unit time point when the circuit current value is greater than the rated current value is locked, and then the number of unit time points is counted, and the duration parameter is effectively determined, providing data support for the adaptive fusing operation of the low-voltage fuse, and ensuring the reliability and accuracy of the adaptive fusing of the low-voltage fuse.

[0120] In one embodiment, a low-voltage fuse parameter determination unit is provided, including:

[0121] A data acquisition sub-unit for obtaining the relative magnitude relationship between the obtained circuit current value and the rated current value of the low-voltage fuse and the duration parameter of the circuit current value;

[0122] A data storage sub-unit for associating the relative magnitude relationship and the duration parameter with the received fault information, and recording and storing the relative magnitude relationship, the duration parameter, and the fault information based on the association result.

[0123] The working principle and beneficial effects of the above technical solution are as follows: By recording and storing the relative magnitude relationship between the obtained circuit current value and the rated current value of the low-voltage fuse and the duration parameter of the circuit current value, it is convenient to effectively save the obtained data, and it also provides convenience and guarantee for subsequent analysis of the overload category and overload multiple.

[0124] In one embodiment, a low-voltage fuse and an adaptive fusing control module are provided, including:

[0125] A result acquisition unit configured to obtain the relative magnitude relationship and the duration parameter between the obtained circuit current value and the rated current value of the low-voltage fuse, and determine a target data sample with the circuit current value greater than the rated current value based on the relative magnitude relationship;

[0126] A data analysis unit configured to:

[0127] Mark the target data sample in the data sequence corresponding to the original circuit current value, and segment the target data samples at consecutive time points based on the sample marking result according to the duration parameter to obtain the sub-duration parameter of each segment;

[0128] Perform a first comparison between the sub-duration parameter of each segment and a preset time threshold, determine the target data samples with the sub-duration parameter less than or equal to the preset time threshold as instantaneous overloads, and determine the target data samples with the sub-duration parameter greater than the preset time threshold as continuous overloads;

[0129] Obtain the overload category of the low-voltage fuse based on the instantaneous overload and the continuous overload;

[0130] Meanwhile, perform a second comparison between the instantaneous overload and the continuous overload with their corresponding step overload thresholds respectively, and obtain the overload levels of the instantaneous overload and the continuous overload respectively based on the second comparison;

[0131] Extract the operating temperature of the low-voltage fuse under the fault from the received fault information, and use the operating temperature as an auxiliary index;

[0132] Correct the overload levels based on the auxiliary index according to the mutual limiting relationship between the temperature and the current, and obtain the overload multiples of the instantaneous overload and the continuous overload respectively based on the correction results;

[0133] An adaptive fusing unit configured to control the low-voltage fuse to perform an adaptive fusing operation based on the overload category and the overload multiple.

[0134] In this embodiment, the target data sample refers to the specific data parameter corresponding to the circuit current value greater than the rated current value.

[0135] In this embodiment, the sample marking refers to encircling the target data sample in the data sequence corresponding to the circuit current value, aiming to quickly and effectively determine the target data sample.

[0136] In this embodiment, segment division refers to grouping target data samples at consecutive time points, that is, classifying the starting point and the ending point where the circuit current value exceeds the rated current value into one segment, and there is no time point with a current value lower than the rated current value between the starting point and the ending point.

[0137] In this embodiment, the sub-duration parameter refers to the specific time length corresponding to each segment.

[0138] In this embodiment, the preset time threshold is set in advance, for example, it can be one minute or the like.

[0139] In this embodiment, instantaneous overload refers to a situation where the circuit current value jumps at a certain moment but does not pose a threat to the current itself, that is, the circuit current value exceeds the rated current value at a certain moment but immediately returns to normal.

[0140] In this embodiment, continuous overload refers to a situation where the circuit current value exceeds the rated current value at a certain moment and maintains for a certain period of time.

[0141] In this embodiment, the step overload threshold is set in advance, that is, the limiting parameters corresponding to different levels.

[0142] In this embodiment, the auxiliary index refers to the current working temperature of the low-voltage fuse, which provides auxiliary parameter information for the adaptive fusing of the low-voltage fuse.

[0143] In this embodiment, the mutual limitation relationship refers to the interaction relationship between temperature and current, that is, the higher the current, the higher the temperature.

[0144] In this embodiment, controlling the low-voltage fuse to perform adaptive fusing operation based on the overload category and overload multiple means controlling the fusing rate of the low-voltage fuse according to the overload category and overload multiple, so as to achieve adaptive fusing.

[0145] The working principle and beneficial effects of the above technical solution are as follows: By locking the target data samples with circuit current values greater than the rated current value of the low-voltage fuse according to the relative magnitude relationship and duration parameter between the obtained circuit current value and the rated current value of the low-voltage fuse, and processing the locked target data samples, the sub-duration parameter of the target data samples at continuous time points is determined. Secondly, the obtained sub-duration parameters are respectively compared with a preset time threshold for the first time and the corresponding values are compared with a stepped overload threshold for the second time, so as to accurately and effectively determine the overload category and overload level. Finally, the operating temperature of the low-voltage fuse under the fault is extracted from the received fault information, and the overload level is corrected according to the obtained operating temperature, so as to determine the overload multiples of different overload categories, and control the low-voltage fuse to perform an adaptive fusing operation according to the finally obtained overload category and overload multiple, improving the reliability and efficiency of solving faults and potential hazards.

[0146] In one embodiment, a low-voltage fuse, an adaptive fusing unit is provided, including:

[0147] A fusing parameter determination subunit, configured to:

[0148] Obtain the obtained overload category and overload multiple, and when the overload category is instantaneous overload and the overload multiple is greater than a preset safe overload threshold, determine that the low-voltage fuse performs instantaneous fusing;

[0149] When the overload category is continuous overload, retrieve the inverse time-delay curve of the low-voltage fuse from the experimental database based on the material parameters of the low-voltage fuse, and map the overload multiple in the inverse time-delay curve to obtain the adaptive fusing time of the low-voltage fuse;

[0150] A fusing control subunit, configured to control the low-voltage fuse to perform an adaptive fusing operation based on the determined instantaneous fusing and adaptive fusing time.

[0151] In this embodiment, the preset safe overload threshold is set in advance, that is, the maximum degree parameter allowing instantaneous overload to occur.

[0152] In this embodiment, instantaneous fusing means that the circuit current value exceeds the rated current value, and the overload multiple exceeds the set preset safe overload threshold, controlling the fuse to immediately perform a fusing operation, and the fusing operation is completed instantaneously.

[0153] In this embodiment, the material parameters refer to the material type of the low-voltage fuse, etc., which are parameter information affecting the adaptive fusing operation.

[0154] In this embodiment, the inverse time-delay curve refers to the relative relationship between the fusing duration and the circuit current value when the low-voltage fuse fuses. Specifically, the larger the current value, the longer the fusing duration, and vice versa.

[0155] In this embodiment, the adaptive fusing time refers to the time length required for the low-voltage fuse to complete the fusing operation at the current overload multiple.

[0156] The working principle and beneficial effects of the above technical solution are as follows: By discussing the obtained overload category and overload multiple in different cases, the fusing duration under different overload categories and multiples can be effectively determined, and then the adaptive fusing operation of the low-voltage fuse can be realized, ensuring the fusing reliability of the low-voltage fuse. At the same time, the safety of the circuit and equipment is ensured.

[0157] In one embodiment, a low-voltage fuse, an adaptive fusing control module, is provided, including:

[0158] A monitoring unit, configured to configure a monitoring thread for the low-voltage fuse and perform real-time monitoring on the adaptive fusing operation of the low-voltage fuse based on the monitoring thread;

[0159] An abnormal warning unit and a recording unit, configured to:

[0160] Determine the result of the adaptive fusing operation of the low-voltage fuse based on the real-time monitoring result, and when the low-voltage fuse fails to fuse successfully, start a pre-set backup plan to control the fusing of the low-voltage fuse. At the same time, send a warning notice to the management terminal;

[0161] When the fusing is successful, obtain the fusing time, record the fusing time, and generate a fusing log of the low-voltage fuse.

[0162] In this embodiment, the monitoring thread is a mechanism for real-time monitoring of the fusing process of the low-voltage fuse, and the purpose is to monitor whether the low-voltage fuse is fusing normally.

[0163] In this embodiment, the pre-set backup plan is set in advance. For example, it can be to start a backup control device to intervene in the fusing, etc.

[0164] The working principle and beneficial effects of the above technical solution are as follows: By monitoring the adaptive fusing process of the low-voltage fuse, when the low-voltage fuse fails to fuse successfully, start a pre-set backup plan to control the fusing of the low-voltage fuse. At the same time, when the fusing is successful, obtain the fusing time, record the fusing time, and generate a fusing log of the low-voltage fuse, ensuring the fusing reliability of the low-voltage fuse and facilitating an effective understanding of the specific operation and situation of the fusing.

[0165] This embodiment provides an adaptive fusing method for a low-voltage fuse, as Figure 3 shown, including:

[0166] Step 1: Collect multi-category operation status data of the low-voltage fuse based on multi-category sensors, and perform real-time fault detection on the circuit based on the multi-category operation status data;

[0167] Step 2: When a fault occurs, transmit the fault information to the management terminal, and analyze the fault based on the management terminal to determine the relative magnitude relationship between the circuit current value and the rated current value of the low-voltage fuse and the duration parameter of the circuit current value under the current fault;

[0168] Step 3: Determine the overload category and overload multiple of the low-voltage fuse based on the relative magnitude relationship and the duration parameter, and control the low-voltage fuse to perform an adaptive fusing operation based on the overload category and overload multiple.

[0169] The working principle and beneficial effects of the above technical solution are: By collecting multi-category operation data of the low-voltage fuse and performing real-time fault detection on the multi-category operation data, it is convenient to respond to the fault in a timely manner when a fault occurs. Secondly, when it is determined that a fault exists, the fault information is transmitted to the management terminal for analysis, so as to effectively determine the overload category and overload multiple according to the relative magnitude relationship between the circuit current value and the rated current value of the low-voltage fuse and the duration parameter of the circuit current value under the current fault, providing reliable data support for the adaptive fusing control of the low-voltage fuse. Finally, the adaptive fusing control of the low-voltage fuse is realized according to the obtained overload category and overload multiple, improving the reliability and efficiency of solving faults and hidden dangers.

[0170] In one embodiment, an adaptive fusing method for a low-voltage fuse is provided. In step 1, collecting multi-category operation status data of the low-voltage fuse based on multi-category sensors includes:

[0171] Obtain the structural framework of the low-voltage fuse. At the same time, determine the supervision items for the low-voltage fuse based on the management terminal, and extract the item attributes of the supervision items;

[0172] Determine project monitoring points based on the item attributes according to the structural framework of the low-voltage fuse, and obtain the layout positions of multi-category sensors for the project monitoring points;

[0173] Give layout guidance to the multi-category sensors based on the layout positions, and after the layout is completed, control the multi-category sensors to perform status monitoring on the low-voltage fuse in parallel to obtain multi-category operation status data of the low-voltage fuse.

[0174] The working principle and beneficial effects of the above technical solution are as follows: By determining the structural framework and supervision items of the low-voltage fuse, it is possible to accurately and effectively determine the deployment positions of multiple types of sensors on the low-voltage fuse. Secondly, according to the determined deployment positions, layout guidance is provided for the multiple types of sensors, so as to effectively layout the multiple types of sensors according to the deployment guidance results. After the layout, effective acquisition of the operation status data of multiple types of the low-voltage fuse can be achieved, enabling a comprehensive understanding of its physical structure and components. Thus, the project monitoring points can be determined specifically to optimize the sensor layout. Different types of sensors (such as temperature sensors, current sensors, etc.) can be reasonably laid out according to their respective corresponding monitoring points, avoiding mutual interference between sensors and ensuring that each sensor can exert its maximum monitoring efficiency. This helps to meet the monitoring requirements for low-voltage fuses in different application scenarios, helps to enhance the fault detection and prediction capabilities, and can detect potential fault hazards of the fuse in advance.

[0175] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalent technologies, the present invention also intends to include these changes and modifications.

Claims

1. A low voltage fuse, characterized in that: include: A data acquisition module, used to respectively collect multi-category operating status data of the low-voltage fuse based on multi-category sensors, and perform real-time fault detection on the circuit based on the multi-category operating status data; The abnormality determination module is used to transmit the fault information to the management terminal when a fault exists, and analyze the fault based on the management terminal to determine the relative magnitude relationship between the circuit current value and the rated current value of the low-voltage fuse under the current fault and the duration parameter of the circuit current value; The adaptive fusing control module is used to determine the overload category and overload multiple of the low-voltage fuse based on the relative size relationship and duration parameters, and control the low-voltage fuse to perform an adaptive fusing operation based on the overload category and overload multiple.

2. A low voltage fuse according to claim 1, characterized in that: Data acquisition module, including: A sensor position determination unit for: Obtain the structural framework of the low-voltage fuse, and at the same time, determine the supervision items of the low-voltage fuse based on the management terminal, and extract the project attributes of the supervision items; Based on the project attributes, the project monitoring points are determined according to the structural framework of the low-voltage fuse, and the project monitoring points are obtained as the layout positions of multiple categories of sensors; The data acquisition unit is used to guide the layout of multiple categories of sensors based on the layout positions, and after the layout is completed, control the multiple categories of sensors to monitor the status of the low-voltage fuse in parallel to obtain multiple categories of operating status data of the low-voltage fuse.

3. A low voltage fuse according to claim 1, characterized in that: Data acquisition module, including: A data monitoring unit, used to perform real-time data visual processing on the obtained multi-category operation status data, and determine the value distribution of each category of operation status data based on the data visual processing; A fault detection unit, used to determine a safe value range for each category of operating status data based on a safe operation protocol of the low-voltage fuse, and to overlay and visualize the safe value range with the value distribution of the corresponding category of operating status data; Based on superimposed visualization, it is determined in real time whether there is any operating status data exceeding the corresponding safe value range, and if so, it is determined that there is a circuit fault.

4. A low voltage fuse according to claim 1, characterized in that: Anomaly determination module, including: An information locking unit, used to respectively lock abnormal starting points of multiple categories of operating status data currently collected by multiple categories of sensors when a fault exists, and obtain fault information based on the abnormal starting point locking result; An information transmission unit is used to construct a parallel communication link between multiple types of sensors and a management terminal, and perform routing conversion on the fault information locked at the abnormal starting point based on the parallel communication link, and synchronize the route-converted fault information to the management terminal in real time; Fault analysis unit for: Based on the management terminal, relevant information is screened for real-time synchronized fault information according to the fusing protocol of the low-voltage fuse, and the circuit current value of the low-voltage fuse is extracted; At the same time, the circuit current value of the low-voltage fuse is serialized based on the time series, and the variation range of the circuit current value of the low-voltage fuse along with the value of the time series is obtained based on the serialization; Determine the rated current value of the low-voltage fuse based on the factory configuration parameters of the low-voltage fuse; A parameter determination unit for: Generate a measurement baseline based on the rated current value, and virtually display the measurement baseline and the change range of the circuit current value over time in a two-dimensional coordinate system; Based on the virtual display results, the relative magnitude relationship between the circuit current value and the rated current value at different time points is obtained, and the unit time point at which the circuit current value is greater than the rated current value is locked; Based on the locking result, the number of unit time points is counted to obtain the duration parameter of the circuit current value.

5. A low voltage fuse according to claim 4, characterized in that: A parameter determination unit, comprising: A data acquisition subunit, used to acquire the relative magnitude relationship between the obtained circuit current value and the rated current value of the low-voltage fuse and a duration parameter of the circuit current value; The data storage subunit is used to associate the relative size relationship and the duration parameter with the received fault information, and log and store the relative size relationship, the duration parameter and the fault information based on the association result.

6. A low voltage fuse according to claim 1, characterized in that: Adaptive fuse control module, including: A result acquisition unit, used to acquire the relative magnitude relationship and duration parameter of the obtained circuit current value and the rated current value of the low-voltage fuse, and determine a target data sample in which the circuit current value is greater than the rated current value based on the relative magnitude relationship; Data analysis unit for: Marking the target data samples in the data sequence corresponding to the original circuit current value, and dividing the target data samples at continuous time points into segments according to the duration parameter based on the sample marking result, to obtain the sub-duration parameter of each segment; Perform a first comparison of the sub-duration parameter of each segment with a preset time threshold, and determine the target data sample whose sub-duration parameter is less than or equal to the preset time threshold as an instantaneous overload, and determine the target data sample whose sub-duration parameter is greater than the preset time threshold as a continuous overload; Obtain the overload category of low voltage fuses based on instantaneous overload and sustained overload; At the same time, a second comparison is performed on the instantaneous overload and the continuous overload with the corresponding step overload threshold, and the overload levels of the instantaneous overload and the continuous overload are obtained based on the second comparison; Extracting the operating temperature of the low-voltage fuse under the fault from the received fault information, and using the operating temperature as an auxiliary indicator; Based on the auxiliary index, the overload level is corrected according to the mutual limiting relationship between temperature and current, and the overload multiples of instantaneous overload and continuous overload are obtained based on the correction results; The adaptive fusing unit is used to control the low-voltage fuse to perform an adaptive fusing operation based on the overload category and the overload multiple.

7. A low voltage fuse according to claim 6, characterized in that: Adaptive fuse unit, including: The fuse parameter determination subunit is used to: The overload category and overload multiple are obtained, and when the overload category is instantaneous overload and the overload multiple is greater than a preset safety overload threshold, it is determined that the low-voltage fuse performs instantaneous melting; When the overload category is continuous overload, the inverse time delay curve of the low-voltage fuse is retrieved from the experimental database based on the material parameters of the low-voltage fuse, and the overload multiple is mapped in the inverse time delay curve to obtain the adaptive fusing time of the low-voltage fuse; The fusing control subunit is used to control the low-voltage fuse to perform an adaptive fusing operation based on the determined instantaneous fusing and adaptive fusing time.

8. A low voltage fuse according to claim 1, characterized in that: Adaptive fuse control module, including: A monitoring unit, configured to configure a monitoring thread for the low-voltage fuse, and to perform real-time monitoring of the adaptive fusing operation of the low-voltage fuse based on the monitoring thread; Abnormal warning unit and recording unit are used to: Determine the adaptive fusing operation result of the low-voltage fuse based on the real-time monitoring result, and when the low-voltage fuse fails to be blown successfully, start the preset backup plan to control the fusing of the low-voltage fuse, and at the same time, send an early warning notification to the management terminal; When the fuse is successfully blown, the blowing time is obtained and recorded to generate a blowing log of the low-voltage fuse.

9. An adaptive fusing method for a low voltage fuse, characterized in that: include: Step 1: Collecting multiple types of operating status data of low-voltage fuses based on multiple types of sensors, and performing real-time fault detection on the circuit based on the multiple types of operating status data; Step 2: When a fault occurs, the fault information is transmitted to the management terminal, and the fault is analyzed based on the management terminal to determine the relative magnitude relationship between the circuit current value and the rated current value of the low-voltage fuse under the current fault and the duration parameter of the circuit current value; Step 3: Determine the overload category and overload multiple of the low-voltage fuse based on the relative size relationship and duration parameters, and control the low-voltage fuse to perform an adaptive fusing operation based on the overload category and overload multiple.

10. The adaptive fusing method of a low voltage fuse according to claim 9, characterized in that: In step 1, multiple types of operating status data of the low-voltage fuse are collected based on multiple types of sensors, including: Obtain the structural framework of the low-voltage fuse, and at the same time, determine the supervision items of the low-voltage fuse based on the management terminal, and extract the project attributes of the supervision items; Based on the project attributes, the project monitoring points are determined according to the structural framework of the low-voltage fuse, and the project monitoring points are obtained as the layout positions of multiple categories of sensors; The layout of multiple categories of sensors is guided based on the layout positions, and after the layout is completed, the multiple categories of sensors are controlled to monitor the status of the low-voltage fuse in parallel to obtain multiple categories of operating status data of the low-voltage fuse.

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