Cable connector looseness detection device, method and equipment based on multiple parameters

Abstract

The invention discloses a cable connector looseness detection device, method and equipment based on multiple parameters, and belongs to the technical field of electric power facilities. The device comprises a temperature information acquisition module used for acquiring temperature information of each connection position of a cable through an infrared camera; the sensor determining module is used for determining a target voltage sensor according to the connection position under the condition that the temperature information of the connection position exceeds a first set threshold value; the voltage data acquisition module is used for acquiring voltage data of a downstream part of the connection position through a target voltage sensor; and the looseness abnormity determination module is used for determining that the connection position has looseness abnormity under the condition that the voltage data has the jitter characteristic. According to the technical scheme, the temperature information of the connection position is acquired, and whether the voltage data of the downstream part has the jitter characteristic is identified, so that whether the connection position has the looseness abnormity can be accurately detected in real time, and the normal operation of the cable is ensured.

Description

Technical Field

[0001] The present application belongs to the technical field of electric power facilities, and specifically relates to a device, method and equipment for detecting looseness of cable connectors based on multiple parameters. Background Art

[0002] Currently, cable connectors are generally used to connect various cables and equipment, so that the cables can adapt to various laying requirements in various laying scenarios. However, even with a carefully designed cable connection solution, it is difficult to completely avoid the problem of loosening of cable connectors caused by changes in the external environment, shaking caused by the weight of the cable itself, or slight deviations during the installation process.

[0003] Loose connections in cable connectors can reduce signal quality and increase power loss. The resulting local high temperatures can also accelerate corrosion and aging of cable connectors, ultimately causing contact failure and short circuits. Once a fault occurs, a sudden increase in current may cause equipment damage or even fire. Therefore, accurate and efficient detection of loose connections in cable connectors is an urgent problem that needs to be solved by those skilled in the art. Summary of the invention

[0004] The embodiments of the present application provide a multi-parameter-based cable connector loosening detection device, method and equipment, which aims to achieve real-time and accurate detection of whether there is any loose abnormality at the connection position, thereby ensuring the normal operation of the cable.

[0005] In a first aspect, an embodiment of the present application provides a multi-parameter based cable connector loosening detection device, the device comprising:

[0006] A temperature information acquisition module is used to acquire temperature information of each connection position of the cable through an infrared camera;

[0007] a sensor determination module, configured to determine a target voltage sensor according to the connection position when the temperature information of the connection position exceeds a first set threshold;

[0008] a voltage data acquisition module, configured to acquire voltage data of a downstream portion of the connection position through the target voltage sensor;

[0009] The loose abnormality determination module is used to determine whether the connection position has a loose abnormality when the voltage data has a jitter feature.

[0010] In a second aspect, an embodiment of the present application provides a method for detecting looseness of a cable connector based on multiple parameters, the method comprising:

[0011] The temperature information acquisition module uses an infrared camera to acquire the temperature information of each connection position of the cable;

[0012] determining, by a sensor determination module, a target voltage sensor according to the connection position when the temperature information of the connection position exceeds a first set threshold;

[0013] Acquiring voltage data of a downstream portion of the connection position through the target voltage sensor by means of a voltage data acquisition module;

[0014] When the voltage data has jitter characteristics, the loose abnormality determination module determines that the connection position has a loose abnormality.

[0015] In a third aspect, an embodiment of the present application provides an electronic device, which includes a processor, a memory, and a program or instruction stored in the memory and executable on the processor, wherein the program or instruction, when executed by the processor, implements the steps of the method described in the second aspect.

[0016] In a fourth aspect, an embodiment of the present application provides a readable storage medium, on which a program or instruction is stored, and when the program or instruction is executed by a processor, the steps of the method described in the second aspect are implemented.

[0017] In a fifth aspect, an embodiment of the present application provides a chip, comprising a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run a program or instruction to implement the method described in the second aspect.

[0018] In the embodiment of the present application, the temperature information acquisition module is used to acquire the temperature information of each connection position of the cable through an infrared camera; the sensor determination module is used to determine the target voltage sensor according to the connection position when the temperature information of the connection position exceeds a first set threshold; the voltage data acquisition module is used to acquire the voltage data of the downstream part of the connection position through the target voltage sensor; the loose abnormality determination module is used to determine whether the connection position has a loose abnormality when the voltage data has a jitter feature. The above-mentioned multi-parameter-based loose cable connector detection device can achieve real-time and accurate detection of whether the connection position has a loose abnormality by acquiring the temperature information of the connection position and identifying whether the voltage data of its downstream part has a jitter feature, thereby ensuring the normal operation of the cable. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of a cable connector loosening detection device based on multiple parameters provided in Example 1 of the present application;

[0020] Figure 2 It is a structural schematic diagram of a cable connector loosening detection device based on multiple parameters provided in Example 2 of the present application;

[0021] Figure 3 It is a structural schematic diagram of a cable connector loosening detection device based on multiple parameters provided in Example 3 of the present application;

[0022] Figure 4 It is a structural schematic diagram of a cable connector loosening detection device based on multiple parameters provided in the fourth embodiment of the present application;

[0023] Figure 5 It is a flow chart of a method for detecting looseness of a cable connector based on multiple parameters provided in Embodiment 5 of the present application;

[0024] Figure 6 It is a structural diagram of an electronic device provided in Example 6 of the present application. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical scheme and advantages of the present application clearer, the specific embodiments of the present application are further described in detail below in conjunction with the accompanying drawings. It is understood that the specific embodiments described herein are only used to explain the present application, rather than to limit the present application. It should also be noted that, for the convenience of description, only the part related to the present application but not all the contents are shown in the accompanying drawings. Before discussing the exemplary embodiments in more detail, it should be mentioned that some exemplary embodiments are described as processes or methods depicted as flow charts. Although the flow chart describes each operation (or step) as a sequential process, many of the operations therein can be implemented in parallel, concurrently or simultaneously. In addition, the order of each operation can be rearranged. The process can be terminated when its operation is completed, but it can also have additional steps not included in the accompanying drawings. The process can correspond to a method, a function, a procedure, a subroutine, a subprogram, etc.

[0026] The following will be combined with the drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application belong to the scope of protection of this application.

[0027] The terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0028] In conjunction with the accompanying drawings, the following describes in detail the multi-parameter-based cable connector loosening detection device, method and equipment provided in the embodiments of the present application through specific embodiments and their application scenarios.

[0029] Embodiment 1

[0030] Figure 1 Schematic diagram of the structure of the cable connector loosening detection device based on multiple parameters provided in the first embodiment of the present application. Figure 1 As shown, the device comprises:

[0031] The temperature information acquisition module 110 is used to acquire the temperature information of each connection position of the cable through an infrared camera;

[0032] A sensor determination module 120, configured to determine a target voltage sensor according to the connection position when the temperature information of the connection position exceeds a first set threshold;

[0033] A voltage data acquisition module 130, configured to acquire voltage data of a downstream portion of the connection location through the target voltage sensor;

[0034] The loose abnormality determination module 140 is used to determine whether the connection position has a loose abnormality when the voltage data has a jitter feature.

[0035] This application is applicable to scenarios where cables are connected and operated using cable connectors. Specifically, the determination of the target voltage sensor and whether there is any loose abnormality at the connection position can be performed by the intelligent terminal device. After determining that there is any loose abnormality at the connection position, the staff will promptly maintain the connection position to ensure the normal operation of the cable.

[0036] Based on the above usage scenarios, it can be understood that the executor of the present application can be a smart terminal device, such as a desktop computer, a laptop computer, a mobile phone, a tablet computer, and interactive multimedia, etc., and no excessive limitations are made here.

[0037] The temperature information acquisition module 110 is used to acquire the temperature information of each connection position of the cable through an infrared camera.

[0038] Cable is a device used to transmit power or signals. Cable connectors are important components used to connect different cables or to connect cables to other electrical equipment. Common types include plug connectors, terminal connectors, transition connectors, branch connectors, and joint connectors. The connection position is the location where the cable connector is set.

[0039] Temperature information can be a physical quantity that indicates the degree of hotness or coldness of the connection location. An infrared camera is a special camera device that uses infrared thermal imaging technology. The method of obtaining temperature information of each cable connection location through an infrared camera can use the infrared detector in the infrared camera to convert the infrared radiation emitted by each cable connection location into an electrical signal. After processing, these electrical signals are displayed in the form of a thermal image, in which different colors or grayscales represent different temperature ranges. By analyzing the colors or grayscales in the obtained thermal image, the temperature information of each cable connection location can be obtained.

[0040] The sensor determination module 120 is configured to determine a target voltage sensor according to the connection position when the temperature information of the connection position exceeds a first set threshold.

[0041] Abnormal looseness at the connection position means that the connection position that should have been tightly connected or fixed has become loose. Abnormal looseness at the connection position may cause its temperature information to rise. The main reasons are as follows: First, the abnormal looseness at the connection position causes the contact area to decrease, the contact resistance to increase, and the current generates more heat when passing through the increased resistance, thereby causing the temperature information to rise; second, the abnormal looseness at the connection position may cause uneven distribution of the electric field, causing partial discharge, and the partial discharge generates electric sparks to release energy, thereby causing the temperature information to rise. At the same time, it will also damage the cable insulation, exacerbating the problem of rising temperature information; third, the abnormal looseness at the connection position makes the connection position easy to enter air and moisture, causing oxidation and corrosion, which will further increase the contact resistance, thereby causing the temperature information to rise.

[0042] The first set threshold value may be a lower limit of temperature information indicating that the connection position may be abnormally loose. The target voltage sensor may refer to a voltage sensor capable of acquiring voltage data of a downstream portion of the connection position. Among them, a voltage sensor is a device capable of converting a measured voltage into a usable output signal. According to the method of determining the target voltage sensor based on the connection position, when the temperature information of the connection position exceeds the first set threshold value, a voltage sensor disposed at the downstream portion of the connection position and disposed at the upstream portion of the next connection position may be determined as the target voltage sensor.

[0043] In this technical solution, optionally, the device further includes:

[0044] The abnormality quick determination module is used to determine that the connection position has a loose abnormality when the temperature information of the connection position exceeds a second set threshold, and generate loose abnormality prompt information according to the connection position and its temperature information.

[0045] The second set threshold value may be a lower limit of temperature information indicating that there must be an abnormal looseness at the connection position. It is understandable that the second set threshold value should be higher than the first set threshold value.

[0046] The loose abnormality prompt information can be used to prompt the staff that the connection position is loose abnormally so that the staff can maintain the connection position in time. The method of generating the loose abnormality prompt information according to the connection position and its temperature information can be to control the display device of the terminal device to pop up a prompt window, and the prompt window displays specific contents such as the connection position and its temperature information as the loose abnormality prompt information.

[0047] The advantage of such a setting of the present scheme is that by determining that there is a loose abnormality at the connection position when the temperature information at the connection position exceeds the second set threshold value, and generating loose abnormality prompt information based on the connection position and its temperature information, it is possible to quickly prompt staff to perform maintenance when the temperature information at the connection position is too abnormal, thereby avoiding further loose abnormality determination process that delays the maintenance efficiency of the connection position.

[0048] The voltage data acquisition module 130 is used to acquire voltage data of a downstream portion of the connection position through the target voltage sensor.

[0049] The downstream portion of the connection location may refer to a path along which the current continues to flow after passing through the connection location.

[0050] Voltage data may refer to quantified information about the electrical potential difference between two points in a cable.

[0051] Different types of voltage sensors convert the measured voltage into other physical quantities that are easy to measure based on their own physical principles. For example, if the target voltage sensor is a Hall voltage sensor, the target voltage sensor uses the Hall effect. When the magnetic field generated by the measured voltage acts on the Hall element, a Hall voltage proportional to the measured voltage is generated. By measuring this Hall voltage, the magnitude of the measured voltage can be indirectly obtained. The measured voltage is the voltage data of the downstream part of the connection position; or, if the target voltage sensor is a resistive voltage sensor, the target voltage sensor uses the principle of resistive voltage division to divide the high voltage into a certain proportion to obtain a low voltage for measurement, and then obtains the voltage data of the downstream part of the connection position after calculation.

[0052] The loose abnormality determination module 140 is used to determine whether the connection position has a loose abnormality when the voltage data has a jitter feature.

[0053] The presence of jitter characteristics in voltage data may mean that the voltage data cannot be maintained at a constant value or within an expected range, but fluctuates or is unstable. Loose abnormalities in the connection position may cause unstable current transmission, which in turn causes the voltage data downstream of the connection position to have jitter characteristics.

[0054] When the temperature information of the connection position exceeds the first set threshold and the voltage data of the downstream part of the connection position has jitter characteristics, these two phenomena indicate that the connection position may be loose and abnormal. Therefore, when these two phenomena occur at the same time, it can be determined that the connection position is loose and abnormal.

[0055] In the example of the present application, the temperature information acquisition module is used to acquire the temperature information of each connection position of the cable through an infrared camera; the sensor determination module is used to determine the target voltage sensor according to the connection position when the temperature information of the connection position exceeds the first set threshold; the voltage data acquisition module is used to acquire the voltage data of the downstream part of the connection position through the target voltage sensor; the loose abnormality determination module is used to determine whether the connection position has a loose abnormality when the voltage data has a jitter feature. This technical solution can achieve real-time and accurate detection of whether the connection position has a loose abnormality by acquiring the temperature information of the connection position and identifying whether the voltage data of its downstream part has a jitter feature, thereby ensuring the normal operation of the cable.

[0056] Embodiment 2

[0057] Figure 2 It is a structural schematic diagram of a multi-parameter cable connector loosening detection device provided in Example 2 of the present application. This solution makes a better improvement on the basis of the above-mentioned embodiment, and the specific improvement is: the sensor determination module is specifically used to: when the temperature information of the connection position exceeds the first set threshold, determine the voltage sensor set at the downstream part of the connection position and the upstream part of the next connection position as the target voltage sensor.

[0058] like Figure 2 As shown, the device comprises:

[0059] The temperature information acquisition module 210 is used to acquire the temperature information of each connection position of the cable through an infrared camera;

[0060] A sensor determination module 220, configured to determine a target voltage sensor according to the connection position when the temperature information of the connection position exceeds a first set threshold;

[0061] A voltage data acquisition module 230, configured to acquire voltage data of a downstream portion of the connection location through the target voltage sensor;

[0062] The loose abnormality determination module 240 is used to determine whether the connection position has a loose abnormality when the voltage data has a jitter feature.

[0063] The sensor determination module 220 is specifically used for:

[0064] When the temperature information of the connection position exceeds a first set threshold, a voltage sensor provided at a downstream portion of the connection position and provided at an upstream portion of a next connection position is determined as a target voltage sensor.

[0065] The upstream portion of the next connection position may refer to the flow path of the current before passing through the next connection position. It can be understood that the voltage sensor arranged at the downstream portion of the connection position and arranged at the upstream portion of the next connection position is a voltage sensor arranged between the connection position and the next connection position.

[0066] If the voltage data obtained by the voltage sensor disposed between the connection position and the next connection position has jitter characteristics, this situation can only be caused by the connection position and each connection position before the connection position being loose and abnormal. Therefore, the voltage sensor disposed between the connection position and the next connection position can be determined as the target voltage sensor.

[0067] The advantage of this arrangement of the present scheme is that by determining the voltage sensor arranged at the downstream part of the connection position and at the upstream part of the next connection position as the target voltage sensor, the connection position where loose abnormality may exist can be located more accurately, making the determination of whether there is loose abnormality at the connection position more accurate.

[0068] In this technical solution, optionally, the voltage data acquisition module is specifically used to:

[0069] In the case where there are at least two target voltage sensors, acquiring voltage data through the target voltage sensors;

[0070] Acquiring accuracy information of each target voltage sensor, and determining a weight coefficient of each target voltage sensor according to the accuracy information;

[0071] The voltage data of each target voltage sensor is weighted averaged according to the weight coefficient to obtain the voltage data of the downstream part of the connection position.

[0072] The method of acquiring the voltage data through the target voltage sensor may be to determine the magnitude of the measured voltage measured by the target voltage sensor as the voltage data.

[0073] The accuracy information of the target voltage sensor reflects the degree of proximity between the measurement result of the target voltage sensor and the actual voltage value. The product manual of the target voltage sensor generally describes the accuracy information of the target voltage sensor in detail, so the accuracy information of the target voltage sensor can be obtained by referring to the product manual of the target voltage sensor.

[0074] The weight coefficient of the target voltage sensor may be a value used to describe the degree of influence of the voltage data acquired by the target voltage sensor on the voltage data of the downstream portion of the finally determined connection position. The weight coefficient associated with the accuracy information may be preset, and it is understandable that the higher the accuracy represented by the accuracy information, the higher the weight coefficient associated therewith should be.

[0075] The voltage data of each target voltage sensor is weighted averaged according to the weight coefficient. The voltage data of each target voltage sensor is multiplied by the corresponding weight coefficient and the sum is calculated. The sum is divided by the sum of the weight coefficients to obtain the voltage data of the downstream part of the connection position.

[0076] The following is a sample code for obtaining voltage data of the downstream portion of a connection location when there are at least two target voltage sensors:

[0077]

[0078]

[0079] The advantage of such a setting of the present scheme is that, by determining the weight coefficient of each target voltage sensor according to the accuracy information of each target voltage sensor when there are at least two target voltage sensors, and performing weighted average calculation on the voltage data of each target voltage sensor according to the weight coefficient, the voltage data of the downstream part of the connection position is obtained, which can reduce the impact of a single voltage sensor failure or error on the voltage data, and further improve the monitoring accuracy of the voltage data, thereby making it more accurate to determine whether there is a loose abnormality in the connection position.

[0080] Embodiment 3

[0081] Figure 3This is a schematic diagram of the structure of the multi-parameter cable connector loosening detection device provided in Example 3 of the present application. This solution has made better improvements on the basis of the above embodiments, and the specific improvements are: the loosening abnormality determination module is specifically used to: determine the standard deviation value of the voltage data when the cable transmits direct current; and determine that there is a loosening abnormality at the connection position when the standard deviation value exceeds a preset standard deviation threshold.

[0082] like Figure 3 As shown, the device comprises:

[0083] The temperature information acquisition module 310 is used to acquire the temperature information of each connection position of the cable through an infrared camera;

[0084] A sensor determination module 320, configured to determine a target voltage sensor according to the connection position when the temperature information of the connection position exceeds a first set threshold;

[0085] A voltage data acquisition module 330, configured to acquire voltage data of a downstream portion of the connection location through the target voltage sensor;

[0086] The loose abnormality determination module 340 is used to determine whether the connection position has a loose abnormality when the voltage data has a jitter feature.

[0087] The looseness abnormality determination module 340 is specifically used for:

[0088] In the case where the cable transmits direct current, determining a standard deviation value of the voltage data;

[0089] When the standard deviation value exceeds a preset standard deviation threshold, it is determined that a loose abnormality exists at the connection position.

[0090] Cable transmission of direct current means that the direction of the current in the cable remains unchanged. The standard deviation value is a statistic used to measure the degree of dispersion of voltage data. It can be understood that the larger the standard deviation value, the more unstable the voltage data. The standard deviation value of voltage data can be determined by calculating the average value of voltage data, calculating the difference between each voltage data and the average value, and calculating the square root of the average value of the squares of these differences to obtain the standard deviation value of voltage data.

[0091] The preset standard deviation threshold may be a lower limit of the standard deviation value indicating that the voltage data has jitter characteristics. It is understandable that the smaller the preset standard deviation threshold, the higher the sensitivity of identifying the presence of jitter characteristics in the voltage data. If the standard deviation value exceeds the preset standard deviation threshold, it indicates that the voltage data is very unstable and has jitter characteristics.

[0092] The advantage of this arrangement of the present scheme is that by determining the standard deviation value of the voltage data when the cable is transmitting direct current, and determining that there is a loose abnormality in the connection position when the standard deviation value exceeds the preset standard deviation threshold, it is possible to automatically, quickly and accurately determine whether there is jitter characteristics in the cable data when the cable is transmitting direct current.

[0093] In the technical solution, optionally, the loose abnormality determination module is specifically used to:

[0094] In the case where the cable transmits alternating current, obtaining fundamental frequency information of the cable;

[0095] Performing Fourier transform on the voltage data to obtain frequency spectrum information of the voltage data, and determining each frequency component in the frequency spectrum information;

[0096] When the frequency spectrum information of the voltage data further includes frequency components other than the fundamental frequency information, it is determined that there is a loose abnormality at the connection position.

[0097] Transmitting AC power through a cable means that the direction and magnitude of the current in the cable changes periodically over time. In AC power, fundamental frequency information refers to the fundamental frequency of the power supply. The fundamental frequency information of the cable can be obtained by obtaining the power supply parameters of the cable and determining the fundamental frequency information of the cable based on the power supply parameters.

[0098] Fourier transform is a mathematical algorithm that converts time domain signals into frequency domain signals. In the case of cable transmission of alternating current, the voltage data in the time domain is a waveform that changes with time. By performing Fourier transform, this complex time domain waveform can be decomposed into a combination of sine and cosine waves of different frequencies, that is, the spectrum information of the voltage data. It can be understood that a combination of sine and cosine waves of one frequency is a frequency component.

[0099] When there is a loose abnormality at the connection location, the resistance at the connection location changes. Due to poor contact, the current will be unstable when passing through the connection location. This unstable current transmission will cause the voltage data to be distorted. For example, intermittent arc discharge may occur between the contact points. The generation and extinction of the arc is a rapidly changing process that introduces high-frequency signal components. Therefore, when the frequency spectrum information of the voltage data also includes frequency components other than the baseband information, it can be determined that there is a loose abnormality at the connection location.

[0100] The following is a sample code for determining if a connection is loose when the cable is transmitting AC power:

[0101]

[0102]

[0103]

[0104] The advantage of this arrangement of the present scheme is that by obtaining the spectrum information of the voltage data when the cable is transmitting alternating current, and determining that there is a loose abnormality in the connection position when the spectrum information of the voltage data also includes frequency components other than the baseband information, it is possible to automatically, quickly and accurately determine whether there is a jitter feature in the cable data when the cable is transmitting alternating current.

[0105] Embodiment 4

[0106] Figure 4 It is a structural schematic diagram of a multi-parameter cable connector loosening detection device provided in Example 4 of the present application. This solution has made better improvements on the basis of the above-mentioned embodiments, and the specific improvements are as follows: the sensor determination module is also used to: when the temperature information of the connection position exceeds the first set threshold, determine the verification voltage sensor according to the connection position; correspondingly, the voltage data acquisition module is also used to: obtain the voltage data of the upstream part of the connection position through the verification voltage sensor; correspondingly, the loose abnormality determination module is specifically used to: when there is no jitter feature in the voltage data of the upstream part, and there is a jitter feature in the voltage data of the downstream part, determine that there is a loose abnormality in the connection position.

[0107] like Figure 4 As shown, the device comprises:

[0108] The temperature information acquisition module 410 is used to acquire the temperature information of each connection position of the cable through an infrared camera;

[0109] A sensor determination module 420, configured to determine a target voltage sensor according to the connection position when the temperature information of the connection position exceeds a first set threshold;

[0110] A voltage data acquisition module 430, configured to acquire voltage data of a downstream portion of the connection location through the target voltage sensor;

[0111] The loose abnormality determination module 440 is used to determine whether the connection position has a loose abnormality when the voltage data has a jitter feature.

[0112] The sensor determination module 420 is further configured to:

[0113] When the temperature information of the connection position exceeds a first set threshold, determining a calibration voltage sensor according to the connection position;

[0114] The voltage data acquisition module 430 is further used for:

[0115] Acquiring voltage data of an upstream portion of the connection location through the verification voltage sensor;

[0116] The looseness abnormality determination module 440 is specifically used for:

[0117] When the voltage data of the upstream portion does not have a jitter feature and the voltage data of the downstream portion has a jitter feature, it is determined that a loose abnormality exists at the connection position.

[0118] The calibration voltage sensor is a voltage sensor used to obtain voltage data of the upstream part of the connection position. According to the method of determining the calibration voltage sensor at the connection position, a voltage sensor set at the upstream part of the connection position and set at the downstream part of the previous connection position can be determined as the calibration voltage sensor.

[0119] By obtaining the voltage data of the upstream part of the connection position through the calibration voltage sensor, the magnitude of the measured voltage measured by the calibration voltage sensor can be determined as the voltage data of the upstream part of the connection position.

[0120] If the voltage data of the upstream part does not have jitter characteristics, and the voltage data of the downstream part has jitter characteristics, it means that the voltage data of the downstream part has jitter characteristics, which is not caused by the loose abnormality of the connection positions before the connection position, but can only be caused by the loose abnormality of the connection position. Therefore, it can be determined that the connection position has loose abnormality.

[0121] The advantage of this arrangement of the present scheme is that by determining that there is a loose abnormality at the connection position when there is no jitter feature in the voltage data of the upstream part and there is a jitter feature in the voltage data of the downstream part, it is possible to avoid the error influence of possible loose abnormalities at other connection positions on determining whether there is a loose abnormality at the current connection position.

[0122] Embodiment 5

[0123] Figure 5 : is a flow chart of a method for detecting loose cable connectors based on multiple parameters provided in Embodiment 5 of the present application. Figure 5 As shown, the specific steps include:

[0124] S501, obtaining temperature information of each connection position of the cable through an infrared camera by a temperature information obtaining module;

[0125] S502, determining, by a sensor determination module, a target voltage sensor according to the connection position when the temperature information of the connection position exceeds a first set threshold;

[0126] S503, acquiring voltage data of a downstream portion of the connection position through the target voltage sensor by means of a voltage data acquisition module;

[0127] S504: Determine, by a loose abnormality determination module, whether a loose abnormality exists at the connection position when the voltage data has a jitter feature.

[0128] In an embodiment of the present application, the temperature information of each connection position of the cable is obtained by an infrared camera through a temperature information acquisition module; when the temperature information of the connection position exceeds a first set threshold value, a target voltage sensor is determined according to the connection position through a sensor determination module; the voltage data of the downstream part of the connection position is obtained through the target voltage sensor through a voltage data acquisition module; and when the voltage data has a jitter feature, a loose abnormality is determined to exist at the connection position through a loose abnormality determination module. The above-mentioned multi-parameter-based loose cable connector detection method can achieve real-time and accurate detection of whether there is a loose abnormality at the connection position by acquiring the temperature information of the connection position and identifying whether the voltage data of its downstream part has a jitter feature, thereby ensuring the normal operation of the cable.

[0129] The multi-parameter based cable connector loosening detection method provided in the embodiment of the present application corresponds to the multi-parameter based cable connector loosening detection device provided in the above embodiment, and has the same functional modules and beneficial effects. To avoid repetition, they will not be described here.

[0130] Embodiment 6

[0131] like Figure 6 As shown, an embodiment of the present application also provides an electronic device 600, including a processor 601, a memory 602, and a program or instruction stored in the memory 602 and executable on the processor 601. When the program or instruction is executed by the processor 601, each process of the above-mentioned multi-parameter-based cable connector loosening detection device embodiment is implemented, and the same technical effect can be achieved. To avoid repetition, it will not be described here.

[0132] It should be noted that the electronic devices in the embodiments of the present application include the mobile electronic devices and non-mobile electronic devices mentioned above.

[0133] Embodiment 7

[0134] An embodiment of the present application also provides a readable storage medium, on which a program or instruction is stored. When the program or instruction is executed by a processor, each process of the above-mentioned multi-parameter-based cable connector loosening detection device embodiment is implemented, and the same technical effect can be achieved. To avoid repetition, it will not be repeated here.

[0135] The processor is a processor in the electronic device described in the above embodiment. The readable storage medium includes a computer readable storage medium, such as a computer read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk.

[0136] Embodiment 8

[0137] An embodiment of the present application further provides a chip, which includes a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement the various processes of the above-mentioned multi-parameter-based cable connector loosening detection device embodiment, and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0138] It should be understood that the chip mentioned in the embodiments of the present application can also be called a system-level chip, a system chip, a chip system or a system-on-chip chip, etc.

[0139] It should be noted that, in this article, the terms "comprise", "include" or any other variant thereof are intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise one..." do not exclude the presence of other identical elements in the process, method, article or device including the element. In addition, it should be pointed out that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved, for example, the described method may be performed in an order different from that described, and various steps may also be added, omitted, or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0140] Through the description of the above implementation methods, those skilled in the art can clearly understand that the above-mentioned embodiment methods can be implemented by means of software plus a necessary general hardware platform, and of course by hardware, but in many cases the former is a better implementation method. Based on such an understanding, the technical solution of the present application, or the part that contributes to the prior art, can be embodied in the form of a computer software product, which is stored in a storage medium (such as ROM / RAM, a disk, or an optical disk), and includes a number of instructions for a terminal (which can be a mobile phone, a computer, a server, or a network device, etc.) to execute the methods described in each embodiment of the present application.

[0141] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

[0142] The above are only preferred embodiments of the present application and the technical principles used. The present application is not limited to the specific embodiments described herein, and various obvious changes, readjustments and substitutions that can be made by those skilled in the art will not deviate from the scope of protection of the present application. Therefore, although the present application is described in more detail through the above embodiments, the present application is not limited to the above embodiments, and may include more other equivalent embodiments without departing from the concept of the present application, and the scope of the present application is determined by the scope of the claims.

Claims

1. A multi-parameter cable connector loosening detection device, characterized in that: The device comprises: A temperature information acquisition module is used to acquire temperature information of each connection position of the cable through an infrared camera; a sensor determination module, configured to determine a target voltage sensor according to the connection position when the temperature information of the connection position exceeds a first set threshold; a voltage data acquisition module, configured to acquire voltage data of a downstream portion of the connection position through the target voltage sensor; The loose abnormality determination module is used to determine whether the connection position has a loose abnormality when the voltage data has a jitter feature.

2. The multi-parameter cable connector loosening detection device according to claim 1, characterized in that: The sensor determination module is specifically used for: When the temperature information of the connection position exceeds a first set threshold, a voltage sensor provided at a downstream portion of the connection position and provided at an upstream portion of a next connection position is determined as a target voltage sensor.

3. The multi-parameter cable connector loosening detection device according to claim 2, characterized in that: The voltage data acquisition module is specifically used for: In the case where there are at least two target voltage sensors, acquiring voltage data through the target voltage sensors; Acquiring accuracy information of each target voltage sensor, and determining a weight coefficient of each target voltage sensor according to the accuracy information; The voltage data of each target voltage sensor is weighted averaged according to the weight coefficient to obtain the voltage data of the downstream part of the connection position.

4. The multi-parameter cable connector loosening detection device according to claim 1, characterized in that: The looseness abnormality determination module is specifically used for: In the case where the cable transmits direct current, determining a standard deviation value of the voltage data; When the standard deviation value exceeds a preset standard deviation threshold, it is determined that a loose abnormality exists at the connection position.

5. The multi-parameter based cable connector loosening detection device according to claim 1, characterized in that: The looseness abnormality determination module is specifically used for: In the case where the cable transmits alternating current, obtaining fundamental frequency information of the cable; Performing Fourier transform on the voltage data to obtain frequency spectrum information of the voltage data, and determining each frequency component in the frequency spectrum information; When the frequency spectrum information of the voltage data further includes frequency components other than the fundamental frequency information, it is determined that there is a loose abnormality at the connection position.

6. The multi-parameter based cable connector loosening detection device according to claim 1, characterized in that: The sensor determination module is further used for: When the temperature information of the connection position exceeds a first set threshold, determining a calibration voltage sensor according to the connection position; Correspondingly, the voltage data acquisition module is also used for: Acquiring voltage data of an upstream portion of the connection location through the verification voltage sensor; Accordingly, the looseness abnormality determination module is specifically used for: When the voltage data of the upstream portion does not have a jitter feature and the voltage data of the downstream portion has a jitter feature, it is determined that a loose abnormality exists at the connection position.

7. The multi-parameter based cable connector loosening detection device according to claim 1, characterized in that: The device also includes: The abnormality quick determination module is used to determine that the connection position has a loose abnormality when the temperature information of the connection position exceeds a second set threshold, and generate loose abnormality prompt information according to the connection position and its temperature information.

8. A method for detecting loose cable connectors based on multiple parameters, characterized in that: The method comprises: The temperature information acquisition module uses an infrared camera to acquire the temperature information of each connection position of the cable; determining, by a sensor determination module, a target voltage sensor according to the connection position when the temperature information of the connection position exceeds a first set threshold; Acquiring voltage data of a downstream portion of the connection position through the target voltage sensor by means of a voltage data acquisition module; When the voltage data has jitter characteristics, the loose abnormality determination module determines that the connection position has a loose abnormality.

9. The method for detecting looseness of cable connectors based on multiple parameters according to claim 8, characterized in that: When the temperature information of the connection position exceeds a first set threshold value, determining a target voltage sensor according to the connection position by a sensor determination module includes: When the temperature information of the connection position exceeds a first set threshold, a voltage sensor provided at a downstream portion of the connection position and provided at an upstream portion of a next connection position is determined as a target voltage sensor.

10. An electronic device, characterized in that: It comprises a processor, a memory and a program or instruction stored in the memory and executable on the processor, wherein when the program or instruction is executed by the processor, the steps of the loose cable connector detection method based on multiple parameters are implemented as described in any one of claims 8 to 9.

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