Intelligent Molded Case Circuit Breaker Inlet and Outlet Cable Temperature Measurement Method, Device and Equipment

Abstract

The present application relates to a method, device and equipment for measuring the temperature of the incoming and outgoing line cables of an intelligent molded case circuit breaker. The method includes: obtaining the temperature sensing signals output by the incoming line bus and the outgoing line bus, and determining the phase positions of the respective temperature sensors in the incoming line temperature sensor group and the outgoing line temperature sensor group that output the corresponding temperature sensing signals according to the preset binding data and the identification information of the respective temperature sensors in the incoming line temperature sensor group and the outgoing line temperature sensor group that output the corresponding temperature sensing signals; determining the cable temperature of each phase of the incoming line of the intelligent molded case circuit breaker according to the phase positions of the respective temperature sensors in the incoming line temperature sensor group and the output temperature sensing signals; and determining the cable temperature of each phase of the outgoing line of the intelligent molded case circuit breaker according to the phase positions of the respective temperature sensors in the outgoing line temperature sensor group and the output temperature sensing signals. This effectively reduces the number of leads of the temperature sensors and is conducive to the miniaturization of the volume of the intelligent molded case circuit breaker.

Description

Technical Field

[0001] The present application relates to the technical field of circuit breaker equipment, and particularly to a method, device and equipment for measuring the temperature of the incoming and outgoing cables of an intelligent molded case circuit breaker. Background Art

[0002] An intelligent molded case circuit breaker, also known as a device type circuit breaker, is a common industrial and civil power distribution protection device applicable to environments below 2000m above sea level, and can achieve precise protection against overload and short circuit faults in power distribution lines. When the intelligent molded case circuit breaker encounters abnormal situations such as large line current and loose terminal connections, the temperature of the terminal is often relatively high. Therefore, the intelligent molded case circuit breaker needs to measure the temperature of its connecting cables in order to comprehensively and real-time monitor these abnormal situations.

[0003] Generally speaking, an intelligent molded case circuit breaker needs to measure the temperatures of the cables of 3 incoming lines of phases A, B, and C and 3 outgoing lines of phases A, B, and C, and 6 temperature sensors are required. All these 6 temperature sensors need to be connected to an intelligent module for signal conversion and processing to finally obtain the actual temperature. In the traditional temperature measurement method for intelligent molded case circuit breakers, each temperature sensor is separately used for signal acquisition and processing. Each temperature sensor needs to lead a wire from the cable joint to the intelligent module. Too many wires occupy too much space and the resources of the intelligent module, which is not conducive to the miniaturization of the volume of the intelligent molded case circuit breaker. Summary of the Invention

[0004] Based on this, in view of the above problems, it is necessary to provide a method, device and equipment for measuring the temperature of the incoming and outgoing cables of an intelligent molded case circuit breaker that is conducive to the miniaturization of the volume of the intelligent molded case circuit breaker.

[0005] A method for measuring the temperature of the incoming and outgoing cables of an intelligent molded case circuit breaker includes:

[0006] Obtaining temperature induction signals output by the incoming line bus and the outgoing line bus; wherein, the incoming line bus is connected to an incoming line temperature sensor group arranged on the incoming line side of the intelligent molded case circuit breaker, and the outgoing line bus is connected to an outgoing line temperature sensor group arranged on the outgoing line side of the intelligent molded case circuit breaker;

[0007] According to preset binding data, and the identification information of each temperature sensor that outputs corresponding temperature induction signals in the incoming line temperature sensor group and the outgoing line temperature sensor group, determining the phase positions of each temperature sensor that outputs corresponding temperature induction signals in the incoming line temperature sensor group and the outgoing line temperature sensor group; wherein, the preset binding data is obtained by calibrating and binding the phase positions of each temperature sensor and the identification information in the incoming line temperature sensor group and the outgoing line temperature sensor group, and represents the corresponding relationship between the phase positions of the temperature sensors and the identification information;

[0008] Determine the cable temperature of each phase of the incoming line of the intelligent molded case circuit breaker according to the phase positions of the temperature sensors in the incoming line temperature sensor group and the output temperature sensing signals.

[0009] Determine the cable temperature of each phase of the outgoing line of the intelligent molded case circuit breaker according to the phase positions of the temperature sensors in the outgoing line temperature sensor group and the output temperature sensing signals.

[0010] In one embodiment, before determining the phase positions of the temperature sensors in the incoming line temperature sensor group and the outgoing line temperature sensor group that output corresponding temperature sensing signals according to the preset binding data and the identification information of the temperature sensors that output corresponding temperature sensing signals in the incoming line temperature sensor group and the outgoing line temperature sensor group, the method further includes:

[0011] When applying current to the corresponding phase incoming line of the intelligent molded case circuit breaker, determine the temperature values detected by each temperature sensor in the incoming line temperature sensor group and the outgoing line temperature sensor group according to the temperature sensing signals output by the incoming line bus and the outgoing line bus.

[0012] Analyze and determine the corresponding relationship between the phase positions and the identification information of each temperature sensor in the incoming line temperature sensor group and the outgoing line temperature sensor group according to the temperature values, and obtain the preset binding data for storage.

[0013] In one embodiment, the incoming line temperature sensor group includes an A-phase incoming line temperature sensor, a B-phase incoming line temperature sensor, and a C-phase incoming line temperature sensor, and the A-phase incoming line temperature sensor, the B-phase incoming line temperature sensor, and the C-phase incoming line temperature sensor all transmit temperature sensing signals through the incoming line bus.

[0014] In one embodiment, the outgoing line temperature sensor group includes an A-phase outgoing line temperature sensor, a B-phase outgoing line temperature sensor, and a C-phase outgoing line temperature sensor, and the A-phase outgoing line temperature sensor, the B-phase outgoing line temperature sensor, and the C-phase outgoing line temperature sensor all transmit temperature sensing signals through the outgoing line bus.

[0015] In one embodiment, the temperature values include the temperature values detected by each temperature sensor in the incoming line temperature sensor group and the outgoing line temperature sensor group when applying current to the A-phase incoming line of the intelligent molded case circuit breaker, and the temperature values detected by each temperature sensor in the incoming line temperature sensor group and the outgoing line temperature sensor group when applying current to the B-phase incoming line of the intelligent molded case circuit breaker.

[0016] Analyzing and determining, according to the temperature value, the corresponding relationship between the phase positions where each temperature sensor is located and the identification information in the incoming line temperature sensor group and the outgoing line temperature sensor group, and obtaining the preset binding data for storage, including:

[0017] According to the temperature values detected by each temperature sensor in the incoming line temperature sensor group and the outgoing line temperature sensor group when a current is applied to the A-phase incoming line of the intelligent molded case circuit breaker, and the temperature values saved before the current application, determine the temperature sensors in the incoming line temperature sensor group and the outgoing line temperature sensor group whose temperature rise amplitudes are greater than the set threshold, and respectively use them as the temperature sensors arranged on the A-phase incoming line and the A-phase outgoing line;

[0018] According to the temperature values detected by the remaining temperature sensors in the incoming line temperature sensor group and the outgoing line temperature sensor group when a current is applied to the B-phase incoming line of the intelligent molded case circuit breaker, and the temperature values saved before the current application, determine the temperature sensors in the incoming line temperature sensor group and the outgoing line temperature sensor group whose temperature rise amplitudes are greater than the set threshold, and respectively use them as the temperature sensors arranged on the B-phase incoming line and the B-phase outgoing line;

[0019] Use the remaining two temperature sensors in the incoming line temperature sensor group and the outgoing line temperature sensor group as the temperature sensors arranged on the C-phase incoming line and the C-phase outgoing line respectively, complete the binding of the corresponding relationship between the phase positions where each temperature sensor is located and the identification information, and obtain the preset binding data for storage.

[0020] An intelligent molded case circuit breaker incoming and outgoing line cable temperature measurement device, including:

[0021] A signal acquisition module, configured to acquire temperature induction signals output by the incoming line bus and the outgoing line bus; wherein, the incoming line bus is connected to an incoming line temperature sensor group arranged on the incoming line side of the intelligent molded case circuit breaker, and the outgoing line bus is connected to an outgoing line temperature sensor group arranged on the outgoing line side of the intelligent molded case circuit breaker;

[0022] A data analysis module, configured to determine the phase positions where each temperature sensor that outputs a corresponding temperature induction signal is located in the incoming line temperature sensor group and the outgoing line temperature sensor group according to the preset binding data and the identification information of each temperature sensor that outputs a corresponding temperature induction signal in the incoming line temperature sensor group and the outgoing line temperature sensor group; wherein, the preset binding data is obtained by calibrating and binding the corresponding relationship between the phase positions where each temperature sensor is located and the identification information in the incoming line temperature sensor group and the outgoing line temperature sensor group, and represents the corresponding relationship between the phase positions where the temperature sensors are located and the identification information;

[0023] An incoming line temperature determination module, configured to determine the cable temperatures of each phase of the incoming line of the intelligent molded case circuit breaker according to the phase positions of the temperature sensors in the incoming line temperature sensor group and the output temperature sensing signals.

[0024] An outgoing line temperature determination module, configured to determine the cable temperatures of each phase of the outgoing line of the intelligent molded case circuit breaker according to the phase positions of the temperature sensors in the outgoing line temperature sensor group and the output temperature sensing signals.

[0025] In one embodiment, the device further includes:

[0026] A temperature acquisition module, configured to determine the temperature values detected by each temperature sensor in the incoming line temperature sensor group and the outgoing line temperature sensor group according to the temperature sensing signals output by the incoming line bus and the outgoing line bus when a current is applied to the corresponding phase incoming line of the intelligent molded case circuit breaker.

[0027] A position calibration module, configured to analyze and determine the corresponding relationship between the phase positions of each temperature sensor in the incoming line temperature sensor group and the outgoing line temperature sensor group and the identification information according to the temperature values, and store the obtained preset binding data.

[0028] In one embodiment, the position calibration module includes:

[0029] A first calibration unit, configured to determine, according to the temperature values detected by each temperature sensor in the incoming line temperature sensor group and the outgoing line temperature sensor group when a current is applied to the A-phase incoming line of the intelligent molded case circuit breaker and the temperature values saved before the current application, the temperature sensors in the incoming line temperature sensor group and the outgoing line temperature sensor group whose temperature rise amplitudes are greater than a set threshold, and respectively use them as the temperature sensors arranged on the A-phase incoming line and the A-phase outgoing line.

[0030] A second calibration unit, configured to determine, according to the temperature values detected by the remaining temperature sensors in the incoming line temperature sensor group and the outgoing line temperature sensor group when a current is applied to the B-phase incoming line of the intelligent molded case circuit breaker and the temperature values saved before the current application, the temperature sensors in the incoming line temperature sensor group and the outgoing line temperature sensor group whose temperature rise amplitudes are greater than a set threshold, and respectively use them as the temperature sensors arranged on the B-phase incoming line and the B-phase outgoing line.

[0031] A third calibration unit, configured to respectively use the remaining two temperature sensors in the incoming line temperature sensor group and the outgoing line temperature sensor group as the temperature sensors arranged on the C-phase incoming line and the C-phase outgoing line, complete the binding of the corresponding relationship between the phase positions of each temperature sensor and the identification information, and store the obtained preset binding data.

[0032] An intelligent temperature measurement device for the incoming and outgoing cables of a molded case circuit breaker includes an incoming line temperature sensor group, an outgoing line temperature sensor group, an incoming line bus, an outgoing line bus, and a processor. The incoming line temperature sensor group is arranged on the incoming side of the intelligent molded case circuit breaker and is connected to the processor through the incoming line bus. The outgoing line temperature sensor group is arranged on the outgoing side of the intelligent molded case circuit breaker and is connected to the processor through the outgoing line bus. The processor is used to measure the cable temperature according to the above method.

[0033] In one embodiment, the device further includes a memory, which is connected to the processor and is used to store the preset binding data.

[0034] In one embodiment, the memory includes a memory arranged on the circuit breaker body of the intelligent molded case circuit breaker and / or a memory arranged on the intelligent module of the intelligent molded case circuit breaker.

[0035] For the above intelligent temperature measurement method, device and equipment for the incoming and outgoing cables of a molded case circuit breaker, the incoming line bus is connected to the incoming line temperature sensor group arranged on the incoming side of the intelligent molded case circuit breaker, and the outgoing line bus is connected to the outgoing line temperature sensor group arranged on the outgoing side of the intelligent molded case circuit breaker. The temperature sensing signals detected and output by each temperature sensor in the incoming line temperature sensor group and the outgoing line temperature sensor group are transmitted through the bus structure. By combining the identification information of the temperature sensors and the preset binding data, the phase positions where each temperature sensor is located are determined, and then the cable temperatures of each phase incoming line and each phase outgoing line of the intelligent molded case circuit breaker are determined, effectively reducing the number of leads of the temperature sensors and facilitating the miniaturization of the volume of the intelligent molded case circuit breaker. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 It is a schematic flowchart of the intelligent temperature measurement method for the incoming and outgoing cables of a molded case circuit breaker in one embodiment;

[0037] Figure 2 It is a schematic flowchart of the intelligent temperature measurement method for the incoming and outgoing cables of a molded case circuit breaker in another embodiment;

[0038] Figure 3 It is a structural block diagram of the intelligent temperature measurement device for the incoming and outgoing cables of a molded case circuit breaker in one embodiment;

[0039] Figure 4 It is a structural block diagram of the intelligent temperature measurement device for the incoming and outgoing cables of a molded case circuit breaker in another embodiment. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0040] In order to make the purpose, technical solutions and advantages of the present application clearer, the present application will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0041] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terms used in the specification of this application are for the purpose of describing specific embodiments only and are not intended to limit this application.

[0042] As used herein, the singular forms "a", "an" and "the" may also include the plural forms unless the context clearly dictates otherwise. It should also be understood that the terms "comprises / comprising" or "has / including" etc. specify the presence of the stated features, wholes, steps, operations, components, parts or combinations thereof, but do not preclude the presence or addition of one or more other features, wholes, steps, operations, components, parts or combinations thereof.

[0043] In the current temperature measurement method for intelligent molded case circuit breakers, each temperature sensor needs to be separately subjected to signal acquisition and processing, and each temperature sensor needs to lead a wire from the cable joint to the intelligent module. Too many wires take up too much space and the resources of the intelligent module. Based on this, this application provides a method for measuring the temperature of the incoming and outgoing cables of an intelligent molded case circuit breaker. Six temperature sensors are divided into two groups: an incoming line group and an outgoing line group, and a bus structure is used for each group respectively. To solve the problem of positioning the line position of the measured temperature, a temperature binding process is also introduced. Once the temperature binding is successful, the binding information is stored in the memory of the device and will no longer be needed in the future. Therefore, the binding process only needs to be carried out once during the entire life cycle of the intelligent molded case circuit breaker. Moreover, the binding process is closely integrated with the device production process and seamlessly connected, and the additional production processes and time consumed are basically negligible.

[0044] In one embodiment, as Figure 1 shown, a method for measuring the temperature of the incoming and outgoing cables of an intelligent molded case circuit breaker is provided, including:

[0045] Step S300: Obtain the temperature sensing signals output by the incoming line bus and the outgoing line bus. Among them, the incoming line bus is connected to the incoming line temperature sensor group arranged on the incoming line side of the intelligent molded case circuit breaker, and the outgoing line bus is connected to the outgoing line temperature sensor group arranged on the outgoing line side of the intelligent molded case circuit breaker.

[0046] Specifically, the number of temperature sensing signals transmitted in the incoming line bus and the outgoing line bus is not unique. That is, the specific number of temperature sensors in the incoming line temperature sensor group and the outgoing line temperature sensor group can be set according to actual needs. In one embodiment, the incoming line temperature sensor group includes an A-phase incoming line temperature sensor, a B-phase incoming line temperature sensor, and a C-phase incoming line temperature sensor, which are arranged on the circuit breaker body and are respectively used to detect the temperatures of the A-phase incoming line, B-phase incoming line, and C-phase incoming line of the intelligent molded case circuit breaker. The A-phase incoming line temperature sensor, B-phase incoming line temperature sensor, and C-phase incoming line temperature sensor all transmit temperature sensing signals through the incoming line bus. The outgoing line temperature sensor group includes an A-phase outgoing line temperature sensor, a B-phase outgoing line temperature sensor, and a C-phase outgoing line temperature sensor, which are arranged on the circuit breaker body and are respectively used to detect the temperatures of the A-phase outgoing line, B-phase outgoing line, and C-phase outgoing line of the intelligent molded case circuit breaker. The A-phase outgoing line temperature sensor, B-phase outgoing line temperature sensor, and C-phase outgoing line temperature sensor all transmit temperature sensing signals through the outgoing line bus. The incoming line bus and the outgoing line bus can be specifically connected to the processor in the intelligent module, and the processor receives the temperature sensing signals output by the incoming line bus and the outgoing line bus. The type of the processor is not unique and can be an FPGA (Field Programmable Gate Array), CPU (Central Processing Unit), MCU (Micro Control Unit), or any other device with programmable logic.

[0047] The processor is respectively connected to the incoming line temperature sensor group and the outgoing line temperature sensor group through a bus structure, searches for and saves the identification information of each temperature sensor for subsequent communication with each temperature sensor to receive temperature sensing signals. In addition, the temperature sensor can also carry its own identification information each time it outputs a temperature sensing signal, so that the processor knows which temperature sensor emits the temperature sensing signal. The processor can determine the temperature value detected by the temperature sensor according to the temperature sensing signal. Since the bus structures of the two groups of temperature sensors are separate, the processor can also know whether the two measured temperature values correspond to the incoming line or the outgoing line. The identification information is the unique identification information of the temperature sensor, and the type of the identification information is not unique and can be a use number, code, or ID (Identity), etc. In this embodiment, the ID is used as the identification information.

[0048] Step S400: Determine the phase positions of the temperature sensors that output corresponding temperature sensing signals in the incoming line temperature sensor group and the outgoing line temperature sensor group according to the preset binding data and the identification information of the temperature sensors that output corresponding temperature sensing signals in the incoming line temperature sensor group and the outgoing line temperature sensor group. The preset binding data is obtained by calibrating and binding the phase positions of the temperature sensors in the incoming line temperature sensor group and the outgoing line temperature sensor group with the identification information, and represents the corresponding relationship between the phase positions of the temperature sensors and the identification information.

[0049] Specifically, during the production process of the intelligent molded case circuit breaker, calibration tests can be performed by applying current to the ABC phases of the intelligent molded case circuit breaker respectively. The phase positions of the temperature sensors are calibrated and bound with the identification information to obtain the preset binding data and store it in the memory. The memory can be non-volatile and volatile memories. The non-volatile memory can include read-only memory (ROM), magnetic tape, floppy disk, flash memory, optical memory, high-density embedded non-volatile memory, resistive random access memory (ReRAM), magnetoresistive random access memory (MRAM), ferroelectric random access memory (FRAM), phase change memory (PCM), graphene memory, etc. The volatile memory can include random access memory (RAM) or external cache memory, etc. By way of illustration and not limitation, RAM can be in various forms, such as static random access memory (SRAM) or dynamic random access memory (DRAM), etc.

[0050] Among them, the memory can include the memory set in the circuit breaker body of the intelligent molded case circuit breaker and / or the memory set in the intelligent module of the intelligent molded case circuit breaker. When the intelligent module is pluggable, the preset binding data can be stored in the memory of the intelligent module, or in the memory of the circuit breaker body, or the two memories can save the preset binding data respectively. Placing the memory on the circuit breaker body eliminates the need for recalibration and binding when replacing the intelligent module. The intelligent module directly reads the binding data from the memory of the circuit breaker body. In addition, the circuit breaker body data can be directly stored in the memory of the circuit breaker body, or first stored in the intelligent module and then saved from the intelligent module to the memory of the circuit breaker body.

[0051] Specifically, after receiving the temperature sensing signals output by the incoming line bus and the outgoing line bus, the processor can know the phase positions of the temperature sensors that output the temperature sensing signals according to the IDs of the respective temperature sensors and in combination with the stored preset binding data. For example, the preset binding data includes incoming line group binding data and outgoing line group binding data. The incoming line group binding data contains the IDs corresponding to the A-phase incoming line temperature sensor, the B-phase incoming line temperature sensor, and the C-phase incoming line temperature sensor respectively. The outgoing line group binding data contains the IDs corresponding to the A-phase outgoing line temperature sensor, the B-phase outgoing line temperature sensor, and the C-phase outgoing line temperature sensor respectively. By combining the incoming line group binding data and the IDs of the respective temperature sensors in the incoming line temperature sensor group that output the temperature sensing signals, the processor can know which temperature sensor on the incoming line side sends the temperature sensing signals output by the incoming line bus. Similarly, by combining the outgoing line group binding data and the IDs of the respective temperature sensors in the outgoing line temperature sensor group that output the temperature sensing signals, the processor can know which temperature sensor on the outgoing line side sends the temperature sensing signals output by the outgoing line bus.

[0052] Step S500: Determine the cable temperatures of the incoming lines of each phase of the intelligent molded case circuit breaker according to the phase positions of the respective temperature sensors in the incoming line temperature sensor group and the output temperature sensing signals. After the processor determines which temperature sensing signal is sent by each temperature sensor in the incoming line temperature sensor group, it can determine the cable temperatures of the incoming lines of each phase of the intelligent molded case circuit breaker according to the temperature sensing signals.

[0053] Step S600: Determine the cable temperatures of the outgoing lines of each phase of the intelligent molded case circuit breaker according to the phase positions of the respective temperature sensors in the outgoing line temperature sensor group and the output temperature sensing signals. After the processor determines which temperature sensing signal is sent by each temperature sensor in the outgoing line temperature sensor group, it can determine the cable temperatures of the outgoing lines of each phase of the intelligent molded case circuit breaker according to the temperature sensing signals.

[0054] In the above method for measuring the cable temperatures of the incoming and outgoing lines of the intelligent molded case circuit breaker, the temperature sensing signals detected and output by the respective temperature sensors in the incoming line temperature sensor group and the outgoing line temperature sensor group are transmitted through a bus structure. By combining the identification information of the temperature sensors and the preset binding data, the phase positions of the respective temperature sensors are determined, and then the cable temperatures of the incoming lines and the outgoing lines of each phase of the intelligent molded case circuit breaker are determined, effectively reducing the number of leads of the temperature sensors and facilitating the miniaturization of the volume of the intelligent molded case circuit breaker.

[0055] In one embodiment, as Figure 2 shown, before step S400, the method further includes step S100 and step S200.

[0056] Step S100: When applying current to the corresponding-phase incoming line of the intelligent molded case circuit breaker, determine the temperature values detected by each temperature sensor in the incoming-line temperature sensor group and the outgoing-line temperature sensor group according to the temperature induction signals output by the incoming-line bus and the outgoing-line bus.

[0057] Specifically, during the production process of the intelligent molded case circuit breaker, when entering the calibration test production process, the automated production line uses communication to notify the intelligent molded case circuit breaker to enter the temperature binding process. The intelligent module of the intelligent molded case immediately records the temperature values detected by each of the 6 temperature sensors in 3 groups as the basis for subsequent temperature comparison. When the automated production line applies current to the corresponding-phase incoming line of the intelligent molded case circuit breaker, the processor continues to receive the temperature induction signals output by the incoming-line bus and the outgoing-line bus, and obtains the temperature values detected by each temperature sensor in real time.

[0058] It can be understood that during the calibration test, current can be applied to the incoming lines of the ABC three phases of the intelligent molded case circuit breaker respectively to obtain the temperature values detected by each temperature sensor to bind the corresponding relationship between the phase position where the temperature sensor is located and the identification information. Or current can be applied to the incoming lines of only two phases of the intelligent molded case circuit breaker to obtain the temperature values detected by each temperature sensor and analyze the corresponding relationship between the temperature sensors of these two phases and the identification information. The corresponding relationship between the temperature sensors of the remaining one phase can be directly determined.

[0059] Step S200: Analyze and determine the corresponding relationship between the phase position where each temperature sensor is located and the identification information in the incoming-line temperature sensor group and the outgoing-line temperature sensor group according to the temperature values, and obtain the preset binding data for storage.

[0060] Specifically, after the processor obtains the temperature values detected by each temperature sensor when current is applied to the relevant-phase incoming line of the intelligent molded case circuit breaker, it compares them with the temperature values saved before the current application, analyzes whether the temperature has risen, so as to determine which phase each temperature sensor is set in, determine the corresponding relationship between the phase position where each temperature sensor is located and the identification information, and obtain the preset binding data and store it in the memory.

[0061] In one embodiment, the temperature values include the temperature values detected by each temperature sensor in the incoming-line temperature sensor group and the outgoing-line temperature sensor group when current is applied to the A-phase incoming line of the intelligent molded case circuit breaker, and the temperature values detected by each temperature sensor in the incoming-line temperature sensor group and the outgoing-line temperature sensor group when current is applied to the B-phase incoming line of the intelligent molded case circuit breaker. Step S200 includes Step 220, Step 240, and Step 260.

[0062] Step 220: According to the temperature values detected by each temperature sensor in the incoming line temperature sensor group and the outgoing line temperature sensor group when a current is applied to the A-phase incoming line of the intelligent molded case circuit breaker, and the temperature values saved before the current is applied, determine the temperature sensors in the incoming line temperature sensor group and the outgoing line temperature sensor group whose detected temperature rise amplitude is greater than the set threshold, and respectively use them as the temperature sensors arranged on the A-phase incoming line and the A-phase outgoing line.

[0063] Step 240: According to the temperature values detected by the remaining temperature sensors in the incoming line temperature sensor group and the outgoing line temperature sensor group when a current is applied to the B-phase incoming line of the intelligent molded case circuit breaker, and the temperature values saved before the current is applied, determine the temperature sensors in the incoming line temperature sensor group and the outgoing line temperature sensor group whose detected temperature rise amplitude is greater than the set threshold, and respectively use them as the temperature sensors arranged on the B-phase incoming line and the B-phase outgoing line.

[0064] Step 260: Respectively use the remaining two temperature sensors in the incoming line temperature sensor group and the outgoing line temperature sensor group as the temperature sensors arranged on the C-phase incoming line and the C-phase outgoing line, complete the binding of the corresponding relationship between the phase positions where each temperature sensor is located and the identification information, and obtain the preset binding data for storage.

[0065] Among them, the value of the set threshold is not unique and can be set according to actual needs. In this embodiment, the set threshold is 2°C. The automated production line applies an A-phase current to the intelligent molded case circuit breaker and notifies the intelligent module of the intelligent molded case. As the current continues, the cable temperature keeps rising. The processor in the intelligent module continuously measures the temperature detected by the temperature sensor, compares the measured temperature value with the temperature value saved at the start of calibration. When the temperature rise value of a certain temperature is greater than 2°C, the processor determines the ID corresponding to this temperature as the ID of the A-phase temperature sensor. When the A-phases of the incoming and outgoing lines are both found, the automated production line applies a B-phase current to the intelligent molded case circuit breaker and notifies the intelligent module of the intelligent molded case. The processor continuously measures the temperatures of the remaining 4 sensors. When it detects that the temperature rise values of two of them are greater than 2°C, it determines the IDs corresponding to these two temperatures as the IDs of the B-phase temperature sensors. At the same time, the processor determines the IDs corresponding to the remaining two temperatures that do not rise as the IDs of the C-phase temperature sensors. The processor saves the IDs of the temperature sensors and the position information to the non-volatile memory, and the binding process ends.

[0066] It should be understood that although the steps in the flowcharts involved in the above-described embodiments are shown in sequence according to the indications of the arrows, these steps are not necessarily executed in the order indicated by the arrows. Unless specifically stated herein, there is no strict order restriction for the execution of these steps, and these steps can be executed in other orders. Moreover, at least some of the steps in the flowcharts involved in the above-described embodiments may include multiple steps or multiple stages. These steps or stages are not necessarily executed at the same time, but can be executed at different times. The execution order of these steps or stages is not necessarily sequential, but can be executed alternately or in turn with at least some of the steps or stages in other steps or other steps.

[0067] Based on the same inventive concept, an embodiment of the present application further provides an intelligent molded case circuit breaker incoming and outgoing line cable temperature measurement device for implementing the intelligent molded case circuit breaker incoming and outgoing line cable temperature measurement method described above. The solution provided by this device to solve the problem is similar to the solution described in the above method. Therefore, the specific limitations in one or more embodiments of the intelligent molded case circuit breaker incoming and outgoing line cable temperature measurement device provided below can refer to the limitations on the intelligent molded case circuit breaker incoming and outgoing line cable temperature measurement method in the foregoing text, and will not be elaborated herein.

[0068] In one embodiment, as Figure 3 shown, an intelligent molded case circuit breaker incoming and outgoing line cable temperature measurement device is further provided, including a signal acquisition module 300, a data analysis module 400, an incoming line temperature determination module 500, and an outgoing line temperature determination module, where:

[0069] The signal acquisition module 300 is configured to acquire temperature sensing signals output by the incoming line bus and the outgoing line bus; wherein, the incoming line bus is connected to an incoming line temperature sensor group arranged on the incoming line side of the intelligent molded case circuit breaker, and the outgoing line bus is connected to an outgoing line temperature sensor group arranged on the outgoing line side of the intelligent molded case circuit breaker.

[0070] The data analysis module 400 is configured to determine the phase positions of the temperature sensors that output corresponding temperature sensing signals in the incoming line temperature sensor group and the outgoing line temperature sensor group according to preset binding data and the identification information of the temperature sensors that output corresponding temperature sensing signals in the incoming line temperature sensor group and the outgoing line temperature sensor group; wherein, the preset binding data is obtained by calibrating and binding the phase positions of the temperature sensors in the incoming line temperature sensor group and the outgoing line temperature sensor group with the identification information, and represents the corresponding relationship between the phase positions of the temperature sensors and the identification information.

[0071] The incoming line temperature determination module 500 is configured to determine the cable temperatures of the incoming lines of each phase of the intelligent molded case circuit breaker according to the phase positions of the temperature sensors in the incoming line temperature sensor group and the output temperature sensing signals.

[0072] The outgoing line temperature determination module 600 is configured to determine the cable temperatures of the outgoing lines of each phase of the intelligent molded case circuit breaker according to the phase positions of the temperature sensors in the outgoing line temperature sensor group and the output temperature sensing signals.

[0073] In one embodiment, as Figure 4 shown, the device further includes a temperature acquisition module 100 and a position calibration module 200, wherein:

[0074] The temperature acquisition module 100 is configured to, when applying current to the incoming line of the corresponding phase of the intelligent molded case circuit breaker, determine the temperature values detected by the temperature sensors in the incoming line temperature sensor group and the outgoing line temperature sensor group according to the temperature sensing signals output by the incoming line bus and the outgoing line bus.

[0075] The position calibration module 200 is configured to analyze and determine the corresponding relationship between the phase positions of the temperature sensors in the incoming line temperature sensor group and the outgoing line temperature sensor group and the identification information according to the temperature values, and obtain preset binding data for storage.

[0076] In one embodiment, the position calibration module 200 includes a first calibration unit, a second calibration unit, and a third calibration unit, wherein:

[0077] The first calibration unit is configured to, according to the temperature values detected by the temperature sensors in the incoming line temperature sensor group and the outgoing line temperature sensor group when applying current to the incoming line of phase A of the intelligent molded case circuit breaker, and the temperature values saved before applying current, determine the temperature sensors in the incoming line temperature sensor group and the outgoing line temperature sensor group whose temperature rise amplitudes are greater than the set threshold, and respectively serve as the temperature sensors arranged on the incoming line of phase A and the outgoing line of phase A.

[0078] The second calibration unit is configured to, according to the temperature values detected by the remaining temperature sensors in the incoming line temperature sensor group and the outgoing line temperature sensor group when applying current to the incoming line of phase B of the intelligent molded case circuit breaker, and the temperature values saved before applying current, determine the temperature sensors in the incoming line temperature sensor group and the outgoing line temperature sensor group whose temperature rise amplitudes are greater than the set threshold, and respectively serve as the temperature sensors arranged on the incoming line of phase B and the outgoing line of phase B.

[0079] The third calibration unit is configured to respectively use the remaining two temperature sensors in the incoming line temperature sensor group and the outgoing line temperature sensor group as the temperature sensors arranged on the incoming line of phase C and the outgoing line of phase C, complete the binding of the corresponding relationship between the phase positions of the temperature sensors and the identification information, and obtain preset binding data for storage.

[0080] Each module in the above-mentioned temperature measurement device for the incoming and outgoing cables of the intelligent molded case circuit breaker can be implemented in whole or in part by software, hardware, and their combination. Each of the above modules can be embedded in or independent of the processor of the intelligent module in the form of hardware, or stored in the memory of the intelligent module in the form of software, so that the processor can call and execute the operations corresponding to each of the above modules.

[0081] In one embodiment, a temperature measurement device for the incoming and outgoing cables of an intelligent molded case circuit breaker is further provided, including an incoming line temperature sensor group, an outgoing line temperature sensor group, an incoming line bus, an outgoing line bus, and a processor. The incoming line temperature sensor group is arranged on the incoming side of the intelligent molded case circuit breaker and is connected to the processor through the incoming line bus. The outgoing line temperature sensor group is arranged on the outgoing side of the intelligent molded case circuit breaker and is connected to the processor through the outgoing line bus. The processor is used to measure the cable temperature according to the above method.

[0082] In one embodiment, the device further includes a memory connected to the processor for storing preset binding data. Among them, the memory includes a memory arranged on the circuit breaker body of the intelligent molded case circuit breaker and / or a memory arranged on the intelligent module of the intelligent molded case circuit breaker.

[0083] In one embodiment, a computer-readable storage medium is provided, on which a computer program is stored. When the computer program is executed by a processor, the steps of the above method are implemented.

[0084] In one embodiment, a computer program product is provided, including a computer program. When the computer program is executed by a processor, the steps of the above method are implemented.

[0085] The technical features of the above-mentioned embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope described in this specification.

[0086] The above-mentioned embodiments only represent several implementation manners of the present application. The description is relatively specific and detailed, but it should not be understood as a limitation on the scope of the invention patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present application, several deformations and improvements can still be made, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application should be subject to the appended claims.

Claims

1. A method for measuring the temperature of the incoming and outgoing cables of an intelligent molded case circuit breaker, characterized in that, Including: Obtain the temperature sensing signals output by the incoming line bus and the outgoing line bus; wherein, the incoming line bus is connected to an incoming line temperature sensor group arranged on the incoming line side of the intelligent molded case circuit breaker, and the outgoing line bus is connected to an outgoing line temperature sensor group arranged on the outgoing line side of the intelligent molded case circuit breaker; the incoming line bus and the outgoing line bus are connected to a processor in the intelligent module, and the processor receives the temperature sensing signals output by the incoming line bus and the outgoing line bus; the processor is connected to the incoming line temperature sensor group and the outgoing line temperature sensor group respectively through the incoming line bus and the outgoing line bus, searches for and saves the identification information of each temperature sensor for use in communicating with each temperature sensor to receive the temperature sensing signals. According to the preset binding data and the identification information of each temperature sensor that outputs the corresponding temperature sensing signal in the incoming line temperature sensor group and the outgoing line temperature sensor group, determine the phase positions where each temperature sensor that outputs the corresponding temperature sensing signal in the incoming line temperature sensor group and the outgoing line temperature sensor group is located; wherein, the preset binding data is obtained by calibrating and binding the phase positions where each temperature sensor in the incoming line temperature sensor group and the outgoing line temperature sensor group is located with the identification information, and is stored in the memory of the circuit breaker body, representing the corresponding relationship between the phase positions where the temperature sensors are located and the identification information. According to the phase positions where each temperature sensor in the incoming line temperature sensor group is located and the output temperature sensing signals, determine the cable temperatures of each phase incoming line of the intelligent molded case circuit breaker. According to the phase positions where each temperature sensor in the outgoing line temperature sensor group is located and the output temperature sensing signals, determine the cable temperatures of each phase outgoing line of the intelligent molded case circuit breaker. The intelligent module is arranged to be plugged and unplugged with the circuit breaker body, and the intelligent module directly reads the preset binding data from the memory of the circuit breaker body; before determining the phase positions where each temperature sensor that outputs the corresponding temperature sensing signal in the incoming line temperature sensor group and the outgoing line temperature sensor group is located according to the preset binding data and the identification information of each temperature sensor that outputs the corresponding temperature sensing signal in the incoming line temperature sensor group and the outgoing line temperature sensor group, it further includes: When applying current to the corresponding phase incoming line of the intelligent molded case circuit breaker, determine the temperature values detected by each temperature sensor in the incoming line temperature sensor group and the outgoing line temperature sensor group according to the temperature sensing signals output by the incoming line bus and the outgoing line bus. Analyze and determine the corresponding relationship between the phase positions where each temperature sensor in the incoming line temperature sensor group and the outgoing line temperature sensor group is located and the identification information according to the temperature values, and obtain the preset binding data for storage. The temperature values include the temperature values detected by each temperature sensor in the incoming line temperature sensor group and the outgoing line temperature sensor group when current is applied to the A-phase incoming line of the intelligent molded case circuit breaker, and the temperature values detected by each temperature sensor in the incoming line temperature sensor group and the outgoing line temperature sensor group when current is applied to the B-phase incoming line of the intelligent molded case circuit breaker; analyzing and determining the corresponding relationship between the phase positions where each temperature sensor is located and the identification information in the incoming line temperature sensor group and the outgoing line temperature sensor group according to the temperature values, and obtaining the preset binding data for storage, including: According to the temperature values detected by each temperature sensor in the incoming line temperature sensor group and the outgoing line temperature sensor group when current is applied to the A-phase incoming line of the intelligent molded case circuit breaker, and the temperature values saved before the current application, determining the temperature sensors in the incoming line temperature sensor group and the outgoing line temperature sensor group whose temperature rise amplitudes are greater than the set threshold as the temperature sensors arranged on the A-phase incoming line and the A-phase outgoing line respectively; according to the temperature values detected by the remaining temperature sensors in the incoming line temperature sensor group and the outgoing line temperature sensor group when current is applied to the B-phase incoming line of the intelligent molded case circuit breaker, and the temperature values saved before the current application, determining the temperature sensors in the incoming line temperature sensor group and the outgoing line temperature sensor group whose temperature rise amplitudes are greater than the set threshold as the temperature sensors arranged on the B-phase incoming line and the B-phase outgoing line respectively; taking the remaining two temperature sensors in the incoming line temperature sensor group and the outgoing line temperature sensor group as the temperature sensors arranged on the C-phase incoming line and the C-phase outgoing line respectively, completing the binding of the corresponding relationship between the phase positions where each temperature sensor is located and the identification information, and obtaining the preset binding data for storage.

2. The method according to claim 1, wherein The incoming line temperature sensor group includes an A-phase incoming line temperature sensor, a B-phase incoming line temperature sensor and a C-phase incoming line temperature sensor, and the A-phase incoming line temperature sensor, the B-phase incoming line temperature sensor and the C-phase incoming line temperature sensor all transmit temperature induction signals through the incoming line bus.

3. The method according to claim 2, characterized in that, The outgoing line temperature sensor group includes an A-phase outgoing line temperature sensor, a B-phase outgoing line temperature sensor and a C-phase outgoing line temperature sensor, and the A-phase outgoing line temperature sensor, the B-phase outgoing line temperature sensor and the C-phase outgoing line temperature sensor all transmit temperature induction signals through the outgoing line bus.

4. An intelligent temperature measuring device for the incoming and outgoing cables of a molded case circuit breaker, characterized in that, Including: A signal acquisition module, configured to acquire the temperature induction signals output by the incoming line bus and the outgoing line bus; wherein, the incoming line bus is connected to the incoming line temperature sensor group arranged on the incoming line side of the intelligent molded case circuit breaker, and the outgoing line bus is connected to the outgoing line temperature sensor group arranged on the outgoing line side of the intelligent molded case circuit breaker; the incoming line bus and the outgoing line bus are connected to a processor in the intelligent module, and the processor receives the temperature induction signals output by the incoming line bus and the outgoing line bus; the processor is respectively connected to the incoming line temperature sensor group and the outgoing line temperature sensor group through the incoming line bus and the outgoing line bus, searches for and saves the identification information of each temperature sensor for use in communicating with each temperature sensor to receive the temperature induction signals; A data analysis module, configured to determine the phase positions of the temperature sensors that output corresponding temperature sensing signals in the incoming line temperature sensor group and the outgoing line temperature sensor group according to preset binding data and the identification information of each temperature sensor that outputs the corresponding temperature sensing signal in the incoming line temperature sensor group and the outgoing line temperature sensor group; wherein, the preset binding data is obtained by calibrating and binding the phase positions of each temperature sensor in the incoming line temperature sensor group and the outgoing line temperature sensor group with the identification information, and is stored in the memory of the circuit breaker body, representing the corresponding relationship between the phase position of the temperature sensor and the identification information; An incoming line temperature determination module, configured to determine the cable temperatures of the incoming lines of each phase of the intelligent molded case circuit breaker according to the phase positions of the temperature sensors in the incoming line temperature sensor group and the output temperature sensing signals; An outgoing line temperature determination module, configured to determine the cable temperatures of the outgoing lines of each phase of the intelligent molded case circuit breaker according to the phase positions of the temperature sensors in the outgoing line temperature sensor group and the output temperature sensing signals; The intelligent module is pluggably arranged with the circuit breaker body, and the intelligent module directly reads the preset binding data from the memory of the circuit breaker body; the device further includes: A temperature acquisition module, configured to determine the temperature values detected by each temperature sensor in the incoming line temperature sensor group and the outgoing line temperature sensor group according to the temperature sensing signals output by the incoming line bus and the outgoing line bus when a current is applied to the incoming line of the corresponding phase of the intelligent molded case circuit breaker; A position calibration module, configured to analyze and determine the corresponding relationship between the phase positions of the temperature sensors in the incoming line temperature sensor group and the outgoing line temperature sensor group and the identification information according to the temperature values, and store the obtained preset binding data; The temperature values include the temperature values detected by each temperature sensor in the incoming line temperature sensor group and the outgoing line temperature sensor group when a current is applied to the A-phase incoming line of the intelligent molded case circuit breaker, and the temperature values detected by each temperature sensor in the incoming line temperature sensor group and the outgoing line temperature sensor group when a current is applied to the B-phase incoming line of the intelligent molded case circuit breaker; the position calibration module includes: A first calibration unit, configured to determine the temperature sensors in the incoming line temperature sensor group and the outgoing line temperature sensor group whose detected temperature rise amplitudes are greater than a set threshold as the temperature sensors arranged on the A-phase incoming line and the A-phase outgoing line respectively according to the temperature values detected by each temperature sensor in the incoming line temperature sensor group and the outgoing line temperature sensor group when a current is applied to the A-phase incoming line of the intelligent molded case circuit breaker and the temperature values saved before the current application; The second calibration unit is configured to, when a current is applied to the B-phase incoming line of the intelligent molded case circuit breaker, determine the temperature sensors in the incoming line temperature sensor group and the outgoing line temperature sensor group that detect a temperature rise greater than a set threshold based on the temperature values detected by the remaining temperature sensors in the incoming line temperature sensor group and the outgoing line temperature sensor group, and the temperature values saved before the current application, and respectively use them as the temperature sensors provided on the B-phase incoming line and the B-phase outgoing line; The third calibration unit is configured to respectively use the remaining two temperature sensors in the incoming line temperature sensor group and the outgoing line temperature sensor group as the temperature sensors provided on the C-phase incoming line and the C-phase outgoing line, complete the binding of the corresponding relationship between the phase positions where each temperature sensor is located and the identification information, and obtain the preset binding data for storage.

5. An intelligent temperature measurement device for the incoming and outgoing cables of a molded case circuit breaker, characterized in that, It includes an incoming line temperature sensor group, an outgoing line temperature sensor group, an incoming line bus, an outgoing line bus, and a processor. The incoming line temperature sensor group is provided on the incoming line side of the intelligent molded case circuit breaker and is connected to the processor through the incoming line bus. The outgoing line temperature sensor group is provided on the outgoing line side of the intelligent molded case circuit breaker and is connected to the processor through the outgoing line bus. The processor is configured to measure the cable temperature according to the method described in any one of claims 1-3.

6. The device according to claim 5, characterized in that, It further includes a memory, and the memory is connected to the processor for storing the preset binding data.

7. The device according to claim 6, characterized in that, The memory includes a memory provided on the circuit breaker body of the intelligent molded case circuit breaker and a memory provided on the intelligent module of the intelligent molded case circuit breaker.

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