Arc discharge spectrum detection device and method, and storage medium

Abstract

The application discloses an arc discharge spectrum detection device and method and a storage medium. The device comprises a signal detection module and a signal processing module. The signal detection module acquires a first optical signal when a sample to be detected is not working and an arc discharge is performed and a second optical signal when the sample to be detected works several times and an arc discharge is performed, converts the first optical signal into a first electrical signal and the second optical signal into a second electrical signal, and outputs the first electrical signal and the second electrical signal. The signal processing module determines the health state of the sample to be detected according to the difference between the first electrical signal and the second electrical signal. Through the implementation of the application, the optical signal generated when the sample to be detected is subjected to arc discharge is acquired for detection, an electrical signal is obtained, the electrical signal of the sample to be detected which is not working and the electrical signal of the sample to be detected which works several times are analyzed, the content change of each component in the sample to be detected is determined, and the health state of the sample to be detected is determined. That is, the nondestructive detection mode is adopted, so that the sample to be detected can continue to be used after detection, thereby reducing the cost.

Description

Technical Field

[0001] This invention relates to the field of quality testing technology, specifically to an arc discharge spectral detection device, method, and storage medium. Background Technology

[0002] Circuit breaker contacts are subject to short-term high-current erosion during circuit breaking, which has become a major bottleneck affecting the lifespan of circuit breakers, especially high-current, high-capacity circuit breakers.

[0003] Currently, circuit breakers used in 110kV and above voltage level operating environments are mainly SF6 gas-insulated circuit breakers. To improve breaking capacity, the electrical contacts used are mostly composed of copper-tungsten alloys. The copper material primarily serves as a current conductor during normal operation, while the tungsten material is mainly used for wear resistance and ablation resistance during the circuit breaker's breaking process. When breaking short-circuit current faults, the electric arc caused by the large current has high temperature and high energy characteristics, which can severely ablate the surface of the electrical contacts, thus affecting the circuit breaker's lifespan.

[0004] Circuit breakers used in power grids with voltage levels of 72kV and below are mostly vacuum circuit breakers, and the main component of their electrical contacts is often copper-chromium alloy. Vacuum circuit breakers and SF6 gas-insulated circuit breakers operate on different principles. Vacuum circuit breakers require the vaporization of some metal particles during the short circuit process formed when the contacts make contact to establish an arc path, which can lead to contact damage. Therefore, arc erosion commonly affects the contact life of vacuum circuit breakers.

[0005] Under current technological conditions, the health status of electrical contacts eroded by electric arc cannot be quantitatively assessed. The lifespan of circuit breaker contacts can only be judged based on experience, or by destructive testing. The tested samples cannot be used after testing, which increases costs. Summary of the Invention

[0006] In view of this, embodiments of the present invention provide an arc discharge spectral detection device, method and storage medium to solve the technical problem that the detection methods for electrical contacts in the prior art will cause damage and make them unusable.

[0007] The technical solution proposed in this invention is as follows:

[0008] A first aspect of this invention provides an arc discharge spectral detection device, comprising: a signal detection module and a signal processing module. The signal detection module acquires a first optical signal during arc discharge of a sample before it is put into operation and a second optical signal during arc discharge after it has been put into operation several times. The first optical signal is converted into a first electrical signal and the second optical signal is converted into a second electrical signal and output. The signal processing module receives the first electrical signal and the second electrical signal and determines the health status of the sample based on the difference between the first electrical signal and the second electrical signal.

[0009] Optionally, the signal detection module includes at least one signal detection unit, which includes a signal transmission unit and a detection unit. The detection unit includes at least one photodiode or a custom camera. The signal transmission unit collects a first optical signal during arc discharge of the sample before it is put into operation and a second optical signal during arc discharge after it has been put into operation several times. The first optical signal and the second optical signal are transmitted to the detection unit. The detection unit converts the first optical signal into a first electrical signal and the second optical signal into a second electrical signal for output.

[0010] Optionally, the signal detection unit further includes a filter disposed between the signal transmission unit and the detection unit; when the signal detection module includes multiple signal detection units, the sampling point positions of the multiple signal detection units may be the same or different, and when the sampling point positions are the same, the filters in the multiple signal detection units have different attenuation bands.

[0011] Optionally, the signal detection unit further includes a replaceable observation window, which is disposed at the sampling point of the signal detection unit and connected to the signal transmission unit.

[0012] Optionally, the sample being tested is a circuit breaker contact sample.

[0013] A second aspect of the present invention provides a method for detecting arc discharge spectroscopy, comprising: acquiring a first optical signal when the sample under test undergoes arc discharge before it is put into operation and a second optical signal when it undergoes arc discharge after it has been put into operation several times; converting the first optical signal into a first electrical signal and the second optical signal into a second electrical signal; comparing the first electrical signal and the second electrical signal to determine the health status of the sample under test.

[0014] Optionally, the first electrical signal includes a third electrical signal and a fourth electrical signal, and the second electrical signal includes a fifth electrical signal and a sixth electrical signal. Comparing the first electrical signal and the second electrical signal to determine the health status of the sample includes: determining a first position coordinate in a rectangular coordinate system based on the ratios of the third and fourth electrical signals to the first electrical signal; determining a second position coordinate in a rectangular coordinate system based on the ratios of the fifth and sixth electrical signals to the second electrical signal; and determining the health status of the sample based on the difference between the first position coordinate and the second position coordinate.

[0015] Optionally, the first electrical signal includes a first red photoelectric signal, a first green photoelectric signal, and a first blue photoelectric signal, and the second electrical signal includes a second red photoelectric signal, a second green photoelectric signal, and a second blue photoelectric signal. Comparing the first electrical signal and the second electrical signal to determine the health status of the sample under test includes: determining a first position coordinate in a polar coordinate system based on the difference between the first red photoelectric signal, the first green photoelectric signal, and the first blue photoelectric signal; determining a second position coordinate in a polar coordinate system based on the difference between the second red photoelectric signal, the second green photoelectric signal, and the second blue photoelectric signal in the same manner as determining the first position coordinate; and determining the health status of the sample under test based on the difference between the first position coordinate and the second position coordinate.

[0016] Optionally, the coordinates of the first position are determined using the following formula:

[0017] L = (B + G + R) / 3;

[0018] S=[max(B,G,R)-min(B,G,R)] / [max(B,G,R)+min(B,G,R)];

[0019] H = 240 - 120 g / (g + b) (when r = 0)

[0020] H = 360 - 120b / (b + r) (when g = 0)

[0021] H = 120 - 120r / (r + g) (when b = 0)

[0022] Where r = R - min(B, G, R); g = G - min(B, G, R); b = B - min(B, G, R), R represents the first red photoelectric signal, G represents the first green photoelectric signal, B represents the first blue photoelectric signal, H represents the angular parameter in the first position coordinates, and L and S represent the radius parameters in the first position coordinates.

[0023] A third aspect of the present invention provides a computer-readable storage medium storing computer instructions for causing the computer to perform the arc discharge spectral detection method as described in the second aspect and any one of the second aspects of the present invention.

[0024] The technical solution provided by this invention has the following effects:

[0025] The arc discharge spectral detection device, method, and storage medium provided in this invention detect the optical signal generated when the sample undergoes arc discharge, obtaining an electrical signal. By analyzing the electrical signals of unused samples and samples that have undergone several cycles of operation, the changes in the content of each component in the sample are determined, thereby determining the health status of the sample. This non-destructive testing method allows the sample to continue to be used after testing, thus reducing costs. Attached Figure Description

[0026] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0027] Figure 1 This is a structural block diagram of an arc discharge spectral detection device according to an embodiment of the present invention;

[0028] Figure 2 This is a schematic diagram of the arc discharge spectral detection device according to an embodiment of the present invention;

[0029] Figure 3 This is a schematic diagram of the structure of an arc discharge spectral detection device according to another embodiment of the present invention;

[0030] Figure 4 This is a schematic diagram of the structure of an arc discharge spectral detection device according to another embodiment of the present invention;

[0031] Figure 5 This is a structural block diagram of the arc discharge spectral detection method according to an embodiment of the present invention;

[0032] Figure 6 This is a schematic diagram of the structure of a computer-readable storage medium provided according to an embodiment of the present invention;

[0033] Figure 7 This is a schematic diagram of the structure of an electronic device provided according to an embodiment of the present invention. Detailed Implementation

[0034] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present invention.

[0035] The terms "first," "second," "third," "fourth," etc., used in the specification, claims, and accompanying drawings of this invention are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0036] As described in the background section, existing technologies for detecting the health status of circuit breaker contacts cannot provide a quantitative assessment, or can only employ destructive methods. Therefore, there is an urgent need for a detection method that can assess the health status of contacts without damaging the sample being tested.

[0037] Based on an in-depth analysis of the physical process of electric arc ablation, it can be found that an electric arc is essentially an electrical conduction process in an ionized gas. During this conduction process, the metal will form a discharge on its surface under the action of the electric arc, generating an optical signal. This signal is essentially the transition of electrons outside the atomic nucleus to higher energy levels after absorbing energy. Different materials produce light of different wavelengths when their electrons transition. Therefore, this principle can be used to collect and analyze the optical signals generated during the discharge process, thereby determining the chemical composition and changes of the discharged material and identifying its health status.

[0038] Example 1

[0039] In view of this, embodiments of the present invention provide an arc discharge spectral detection device, such as... Figure 1As shown, the device includes a signal detection module and a signal processing module. The signal detection module acquires a first optical signal when the sample under test undergoes arc discharge before it is put into operation and a second optical signal when it undergoes arc discharge after it has been put into operation several times. The first optical signal is converted into a first electrical signal and the second optical signal is converted into a second electrical signal and output. The signal processing module receives the first electrical signal and the second electrical signal and determines the health status of the sample under test based on the difference between the first electrical signal and the second electrical signal.

[0040] It should be noted that this testing device can not only detect the health status of circuit breaker contacts, but also the health status of products using arc luminescence technology, such as those used in electric welding and metal smelting. That is, the sample being tested can be a circuit breaker contact sample, or other samples using arc luminescence technology; this embodiment of the invention does not limit this. When the sample being tested is a circuit breaker contact, a low-energy arc is applied between the electrodes of the circuit breaker contacts using an electric spark device to excite a discharge on the contact surface. The electric spark device is placed 1 mm to 4 mm from the electrode surface, and the starting voltage is between 5 kV and 10 kV. In this example, the electrode in the device will be a point electrode to facilitate the breakdown of the gap between the spark device and the electrode being tested.

[0041] The arc discharge spectral detection device provided in this invention detects the optical signal generated when the sample undergoes arc discharge, obtaining an electrical signal. By analyzing the electrical signals of unused samples and samples that have undergone several cycles of operation, the device determines the changes in the content of each component in the sample, thereby determining the health status of the sample. This non-destructive testing method allows the sample to continue to be used after testing, thus reducing costs.

[0042] In one embodiment, the signal detection module includes at least one signal detection unit, which includes a signal transmission unit and a detection unit. The detection unit includes at least one photodiode or a custom camera. The signal transmission unit acquires a first optical signal during arc discharge of the sample before it is put into operation and a second optical signal during arc discharge after it has been put into operation several times. The first optical signal and the second optical signal are transmitted to the detection unit. The detection unit converts the first optical signal into a first electrical signal and the second optical signal into a second electrical signal for output.

[0043] The signal transmission unit can use optical fiber to transmit optical signals, or other methods can be used. When using optical fiber, the core diameter of the fiber is between 10 and 400 micrometers. After adding the cladding, the diameter is between 100 and 1000 micrometers. Both step-index fiber and graded-index fiber can be used. The optical fiber needs to be placed in a protective tube for protection.

[0044] When the detection unit includes two or more photodiodes, the multiple photodiodes have different response speeds but overlapping spectral responses. When the detection unit includes a custom camera, the custom camera can form red, green, and blue pixels based on the different received spectral ranges, and the subsequent signal processing module will perform quantitative analysis based on the number of red, green, and blue pixels. Alternatively, the detection unit may also include only one photodiode; this embodiment of the invention does not limit this.

[0045] Specifically, when selecting the number of photodiodes in the detection unit, it can be based on the optical signal spectrum generated when the sample is subjected to arc discharge. If the optical signal spectrum is concentrated in only one region of red, green and blue, then only one photodiode can be selected; if it is concentrated in any two regions of red, green and blue, then two photodiodes sensitive to the corresponding regions can be selected; if it is distributed in three regions of red, green and blue, then three photodiodes sensitive to red, green and blue can be selected respectively.

[0046] In one embodiment, the signal detection unit further includes a filter and a replaceable observation window. The filter is disposed between the signal transmission unit and the detection unit to protect the detection unit. The replaceable observation window is disposed at a sampling point of the signal detection unit and is connected to the signal transmission unit. When the signal detection module includes multiple signal detection units, the sampling point positions of the multiple signal detection units may be the same or different. When the sampling point positions are the same, the filters in the multiple signal detection units have different attenuation bands. The filter is an optical filter.

[0047] Using multiple signal detection units yields more accurate results. Since the light signal generated by this arc discharge spectroscopy detection device is based on the principle of electron transitions caused by energy excitation, the same material being tested may undergo transitions in multiple wavelength bands (not just one). The material being tested may also be an alloy (or composite material) containing multiple elements, requiring a response to more wavelength bands. Configuring multiple signal detection units and using filters of different wavelengths allows for cross-verification of experimental results, further determining the health status of the sample. Similarly, when the sampling points of multiple signal detection units are located at different positions, detection can be performed at different locations, thus allowing for cross-verification of detection results and improving the accuracy of the detection results.

[0048] Specifically, when multiple signal detection units perform detection, the signal processing module quantitatively analyzes the signals detected by each unit to obtain corresponding detection results. By integrating multiple detection results and employing methods such as averaging or weighted processing, a more accurate detection result is obtained.

[0049] Example 2

[0050] This invention provides an arc discharge spectral detection device, such as... Figure 2 As shown, the device includes a signal detection module and a signal processing module. The signal detection module includes a signal detection unit, which comprises an optical fiber, a filter, and a detection unit arranged sequentially. One end of the optical fiber has a replaceable observation window for observing the discharge situation, and the filter is located at the other end of the optical fiber. The optical signal collected by the optical fiber passes through the filter before entering the detection unit for detection. The filter positioned between the optical fiber and the detection unit protects the detection unit.

[0051] The detection unit incorporates two photodiodes or a two-dimensional array composed of a custom camera; the two photodiodes have different response speeds but overlapping spectral responses. The photodiodes' response spectral range is 400 nm to 1000 nm, with spectral overlap ranging from 450 nm to 800 nm. The two-dimensional array forms red, green, and blue pixels based on the different received spectral ranges. A subsequent signal processing module performs quantitative analysis based on the number of red, green, and blue pixels.

[0052] Example 3

[0053] This invention provides an arc discharge spectral detection device, which includes a signal detection module and a signal processing module. The signal detection module includes multiple signal detection units, each with the same structure as in Embodiment 2, and will not be described again here. The sampling points of the multiple signal detection units are deployed at the same location or at different locations.

[0054] like Figure 3 As shown, when the sampling points of multiple signal detection units are located at the same position, the attenuation band of the filters in each signal detection unit is different. For example, when there are two signal detection units, the filter in one signal detection unit attenuates low-band (e.g., 400 nm to 500 nm) light, while the filter in the other signal detection unit attenuates high-band (e.g., 800 nm to 1000 nm) light.

[0055] like Figure 4 As shown, when the sampling points of multiple signal detection units are located at different positions, all of these different positions are at the location where the arc discharge occurs, and no specific position coordinates are specified.

[0056] Example 4

[0057] This invention also provides a method for detecting arc discharge spectra, such as... Figure 5 As shown, the method includes the following steps:

[0058] Step S101: Collect the first optical signal during arc discharge before the sample is put into operation and the second optical signal during arc discharge after several operations. Specifically, in order to detect the changes in the components of the sample after it has been in operation for a period of time, a small-energy electric spark arc experiment needs to be performed before the sample is put into operation to obtain the initial value (first optical signal); then, an arc experiment is performed again after a period of operation to obtain the current value (second optical signal). If the sample is a circuit breaker contact, the arc experiment can be performed after several circuit breaker switching operations to obtain the current value.

[0059] It should be noted that the first or second optical signal may contain one or more optical signals, the specific number of which is related to the number of photodiodes used to acquire the optical signal. When one photodiode is used, the first or second optical signal each contains one optical signal; when two photodiodes are used, the first or second optical signal each contains two optical signals; and when three photodiodes are used, the first or second optical signal each contains three optical signals.

[0060] Step S102: Convert the first optical signal into a first electrical signal and the second optical signal into a second electrical signal. Specifically, a photodiode or a custom camera can be used to achieve the optical signal conversion. Similarly, the number of electrical signals contained in the first or second electrical signal is the same as the number of optical signals contained in the first or second optical signal, which will not be elaborated further here.

[0061] Step S103: Compare the first electrical signal and the second electrical signal to determine the health status of the sample under test. Specifically, since the first electrical signal is the signal obtained before the sample under test is put into operation, and the second optical signal is the signal obtained after the sample under test has been in operation for a period of time, by comparing the first electrical signal and the second electrical signal, the changes of each chemical component in the sample under test can be determined, thereby determining the health status of the sample under test.

[0062] To more accurately determine component changes, the relationship between signal changes and component changes after the sample is processed can be pre-determined using the above method for each type of sample. In practical applications, after obtaining the first and second electrical signals through the above steps, the component changes of the sample can be directly determined by comparing the first and second electrical signals.

[0063] The arc discharge spectral detection method provided in this invention detects the optical signal generated when the sample undergoes arc discharge, obtaining an electrical signal. By analyzing the electrical signals of unused samples and samples that have undergone several cycles of operation, the method determines the changes in the content of each component in the sample, thereby determining the health status of the sample. This non-destructive testing method allows the sample to be reused after testing, thus reducing costs.

[0064] Example 5

[0065] This invention also provides a method for detecting arc discharge spectroscopy. In this embodiment, the sample under test is the copper electrode of a circuit breaker. First, a first electrical signal and a second electrical signal are obtained using the method described in Embodiment 4. In this embodiment, both the first and second electrical signals include only one electrical signal, i.e., a photodiode is used for optical signal detection. After obtaining the first and second electrical signals, the deviation value is determined by subtracting the first and second electrical signals. Then, the change in chemical composition in the sample under test is determined by the relationship between this deviation value and the chemical composition. Alternatively, a threshold can be set, and the calculated deviation value can be compared with the threshold to determine whether the sample under test should continue to be used.

[0066] Example 6

[0067] This invention also provides a method for detecting arc discharge spectroscopy. In this embodiment, the sample under test is a copper electrode of a circuit breaker. First, a first electrical signal and a second electrical signal are obtained using the method described in Embodiment 4. In this embodiment, the first electrical signal includes a third electrical signal and a fourth electrical signal, and the second electrical signal includes a fifth electrical signal and a sixth electrical signal. Since each electrical signal includes two electrical signals, they cannot be directly compared. Therefore, the first position coordinates in the rectangular coordinate system are first determined based on the ratios of the third and fourth electrical signals to the first electrical signal; then, the second position coordinates in the rectangular coordinate system are determined based on the ratios of the fifth and sixth electrical signals to the second electrical signal; finally, the health status of the sample under test is determined based on the difference between the first and second position coordinates.

[0068] Specifically, the X-coordinate in the first position coordinate system is X = PD1 / (PD1 + PD2), and the Y-coordinate is Y = PD2 / (PD1 + PD2), where PD1 represents the third electrical signal and PD2 represents the fourth electrical signal. The second position coordinate system can be calculated using the same method. Then, the first and second position coordinate systems are placed in the same coordinate system, the distance between them is calculated, and the change in chemical composition in the sample is determined based on the relationship between this distance and the chemical composition. Alternatively, a threshold can be set, and the calculated distance can be compared with the threshold to determine whether the sample should continue to be used.

[0069] If the sample under test can continue to be used, a new second electrical signal can be acquired after the sample continues to work for a period of time. Then, the relationship between the new second electrical signal and the first electrical signal can be determined in the above manner, thereby enabling continuous detection of the sample under test.

[0070] Example 7

[0071] This invention also provides a method for detecting arc discharge spectroscopy. In this embodiment, the sample under test is a copper electrode of a circuit breaker. First, a first electrical signal and a second electrical signal are obtained using the method described in Embodiment 4. In this embodiment, the first electrical signal includes a first red photoelectric signal, a first green photoelectric signal, and a first blue photoelectric signal, and the second electrical signal includes a second red photoelectric signal, a second green photoelectric signal, and a second blue photoelectric signal. When determining the health status of the sample under test, the first position coordinate in the polar coordinate system is first determined based on the difference between the first red photoelectric signal, the first green photoelectric signal, and the first blue photoelectric signal. Then, based on the same method as determining the first position coordinate, the second position coordinate in the polar coordinate system is determined based on the difference between the second red photoelectric signal, the second green photoelectric signal, and the second blue photoelectric signal. Finally, the health status of the sample under test is determined based on the difference between the first position coordinate and the second position coordinate.

[0072] The coordinates of the first position are determined using the following formula:

[0073] L = (B + G + R) / 3;

[0074] S=[max(B,G,R)-min(B,G,R)] / [max(B,G,R)+min(B,G,R)];

[0075] H = 240 - 120 g / (g + b) (when r = 0)

[0076] H = 360 - 120b / (b + r) (when g = 0)

[0077] H = 120 - 120r / (r + g) (when b = 0)

[0078] Where r = R - min(B, G, R); g = G - min(B, G, R); b = B - min(B, G, R), R represents the first red photoelectric signal, G represents the first green photoelectric signal, B represents the first blue photoelectric signal, H represents the angular parameter in the first position coordinates, and L and S represent the radius parameters in the first position coordinates.

[0079] Once the above parameters are determined, in the polar coordinate system, when determining the first position coordinates, the HL or HS polar coordinates are obtained based on the angular and radius parameters. Similarly, the HL or HS polar coordinates in the second position coordinates are determined in the same way. Then, based on the distance between the two HL or HS polar coordinates, and the relationship between this distance and the chemical composition, the change in the chemical composition of the sample is determined. Alternatively, a threshold can be set, and the calculated distance can be compared with the threshold to determine whether the sample should continue to be used.

[0080] Furthermore, when the first electrical signal includes a first red photoelectric signal, a first green photoelectric signal, and a first blue photoelectric signal, and the second electrical signal includes a second red photoelectric signal, a second green photoelectric signal, and a second blue photoelectric signal, the same method as in Embodiment 6 can be used to calculate the ratio of each electrical signal in the first and second electrical signals to the corresponding first or second electrical signal, to obtain three coordinates in the first position coordinates corresponding to the first electrical signal and three coordinates in the second position coordinates corresponding to the second electrical signal. Then, the corresponding coordinates are placed in the same three-dimensional coordinate system, and the distance between the first position coordinates and the second position coordinates is calculated, thereby realizing the detection of the sample based on the distance.

[0081] Example 8

[0082] This invention also provides a storage medium, such as... Figure 6As shown, a computer program 601 is stored on it. When executed by a processor, this program implements the steps of the arc discharge spectrum detection method in the above embodiments. The storage medium also stores audio and video stream data, feature frame data, interactive request signaling, encrypted data, and a preset data size. The storage medium can be a magnetic disk, optical disk, read-only memory (ROM), random access memory (RAM), flash memory, hard disk drive (HDD), or solid-state drive (SSD), etc.; the storage medium may also include combinations of the above types of memory.

[0083] Those skilled in the art will understand that all or part of the processes in the methods of the above embodiments can be implemented by a computer program instructing related hardware. The program can be stored in a computer-readable storage medium, and when executed, it can include the processes of the embodiments of the above methods. The storage medium can be a magnetic disk, optical disk, read-only memory (ROM), random access memory (RAM), flash memory, hard disk drive (HDD), or solid-state drive (SSD), etc.; the storage medium can also include combinations of the above types of memory.

[0084] Example 9

[0085] This invention also provides an electronic device, such as... Figure 7 As shown, the electronic device may include a processor 51 and a memory 52, wherein the processor 51 and the memory 52 may be connected via a bus or other means. Figure 7 Taking the example of a connection between China and Israel via a bus.

[0086] Processor 51 can be a central processing unit (CPU). Processor 51 can also be other general-purpose processors, digital signal processors (DSPs), application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, or combinations of the above types of chips.

[0087] The memory 52, as a non-transitory computer-readable storage medium, can be used to store non-transitory software programs, non-transitory computer-executable programs, and modules, such as the corresponding program instructions / modules in the embodiments of the present invention. The processor 51 executes various functional applications and data processing by running the non-transitory software programs, instructions, and modules stored in the memory 52, thereby implementing the arc discharge spectral detection method in the above method embodiments.

[0088] The memory 52 may include a program storage area and a data storage area. The program storage area may store applications required for operating the device and at least one function; the data storage area may store data created by the processor 51, etc. Furthermore, the memory 52 may include high-speed random access memory and may also include non-transitory memory, such as at least one disk storage device, flash memory device, or other non-transitory solid-state storage device. In some embodiments, the memory 52 may optionally include memory remotely located relative to the processor 51, and these remote memories may be connected to the processor 51 via a network. Examples of such networks include, but are not limited to, the Internet, corporate intranets, local area networks, mobile communication networks, and combinations thereof.

[0089] The one or more modules are stored in the memory 52, and when executed by the processor 51, they perform the following: Figure 5 The arc discharge spectral detection method in the illustrated embodiment.

[0090] For specific details regarding the aforementioned electronic devices, please refer to the relevant documentation. Figure 5 The relevant descriptions and effects in the illustrated embodiments are for understanding purposes only and will not be repeated here.

[0091] Although embodiments of the invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the invention, and all such modifications and variations fall within the scope defined by the appended claims.

Claims

1. An arc discharge optical emission spectrometry apparatus characterized by comprising: include: Signal detection module and signal processing module, The signal detection module acquires the first optical signal when the sample under test undergoes arc discharge before it is not working and the second optical signal when it undergoes arc discharge after working several times. It then converts the first optical signal into a first electrical signal and the second optical signal into a second electrical signal for output. The signal processing module receives the first electrical signal and the second electrical signal, and determines the health status of the sample being tested based on the difference between the first electrical signal and the second electrical signal. Among them, the sample under test is the circuit breaker electrical contact. During the test, an electric arc is applied between the electrodes of the circuit breaker electrical contact through an electric spark device to excite the discharge on the contact surface. The electric spark device is placed 1 mm to 4 mm away from the electrode surface, and the starting voltage is between 5 kV and 10 kV. The first electrical signal includes a third electrical signal and a fourth electrical signal, and the second electrical signal includes a fifth electrical signal and a sixth electrical signal; By comparing the first electrical signal and the second electrical signal, the health status of the sample being tested is determined, including: The first position coordinates in the rectangular coordinate system are determined based on the ratios of the third and fourth electrical signals to the first electrical signal, respectively. The second position coordinates in the rectangular coordinate system are determined based on the ratios of the fifth and sixth electrical signals to the second electrical signal, respectively. The health status of the sample under test is determined based on the difference between the first and second position coordinates. Alternatively, the first electrical signal may include a first red photoelectric signal, a first green photoelectric signal, and a first blue photoelectric signal, and the second electrical signal may include a second red photoelectric signal, a second green photoelectric signal, and a second blue photoelectric signal. By comparing the first electrical signal and the second electrical signal, the health status of the sample being tested is determined, including: The first position coordinates in the polar coordinate system are determined based on the difference between the first red photoelectric signal, the first green photoelectric signal, and the first blue photoelectric signal. The second position coordinates in the polar coordinate system are determined based on the difference between the second red photoelectric signal, the second green photoelectric signal, and the second blue photoelectric signal, in the same way as the first position coordinates are determined. The health status of the sample under test is determined based on the difference between the first and second position coordinates.

2. The arc discharge optical emission spectrometry apparatus according to claim 1, characterized by The signal detection module includes at least one signal detection unit, which includes a signal transmission unit and a detection unit. The detection unit includes at least one photodiode or a custom camera. The signal transmission unit collects the first optical signal when the sample under test undergoes arc discharge before it is not working and the second optical signal when it undergoes arc discharge after working several times, and transmits the first optical signal and the second optical signal to the detection unit. The detection unit converts the first optical signal into a first electrical signal and the second optical signal into a second electrical signal for output.

3. The arc discharge spectral detection device according to claim 2, characterized in that, The signal detection unit further includes a filter, which is disposed between the signal transmission unit and the detection unit; When the signal detection module includes multiple signal detection units, the sampling point positions of the multiple signal detection units may be the same or different. When the sampling point positions are the same, the filters in the multiple signal detection units have different attenuation bands.

4. The arc discharge optical emission spectrometry apparatus according to claim 2, characterized by, The signal detection unit further includes a replaceable observation window, which is disposed at the sampling point of the signal detection unit and connected to the signal transmission unit.

5. An arc discharge spectroscopy method, characterized by, include: The test sample is a circuit breaker contact. During the test, an electric arc is applied between the electrodes of the circuit breaker contact through an electric spark device to excite the discharge on the contact surface. The electric spark device is placed 1 mm to 4 mm away from the electrode surface, and the starting voltage is between 5 kV and 10 kV. The first optical signal is converted into a first electrical signal, and the second optical signal is converted into a second electrical signal; By comparing the first electrical signal and the second electrical signal, the health status of the sample under test is determined. The first electrical signal includes a third electrical signal and a fourth electrical signal, and the second electrical signal includes a fifth electrical signal and a sixth electrical signal; By comparing the first electrical signal and the second electrical signal, the health status of the sample being tested is determined, including: The first position coordinates in the rectangular coordinate system are determined based on the ratios of the third and fourth electrical signals to the first electrical signal, respectively. The second position coordinates in the rectangular coordinate system are determined based on the ratios of the fifth and sixth electrical signals to the second electrical signal, respectively. The health status of the sample under test is determined based on the difference between the first and second position coordinates. Alternatively, the first electrical signal may include a first red photoelectric signal, a first green photoelectric signal, and a first blue photoelectric signal, and the second electrical signal may include a second red photoelectric signal, a second green photoelectric signal, and a second blue photoelectric signal. By comparing the first electrical signal and the second electrical signal, the health status of the sample being tested is determined, including: The first position coordinates in the polar coordinate system are determined based on the difference between the first red photoelectric signal, the first green photoelectric signal, and the first blue photoelectric signal. The second position coordinates in the polar coordinate system are determined based on the difference between the second red photoelectric signal, the second green photoelectric signal, and the second blue photoelectric signal, in the same way as the first position coordinates are determined. The health status of the sample under test is determined based on the difference between the first and second position coordinates.

6. The method of arc discharge optical emission spectrochemical analysis according to claim 5, characterized in that, The coordinates of the first position are determined using the following formula: L=(B+G+R) / 3; S=[max(B,G,R)-min(B,G,R)] / [max(B,G,R)+min(B,G,R)]; H = 240 - 120 g / (g + b) (when r = 0) H = 360-120b / (b+r) (when g=0) H = 120 - 120r / (r + g) (when b = 0) Where r=R-min(B,G,R); g=G-min(B,G,R); b=B-min(B,G,R), R represents the first red photoelectric signal, G represents the first green photoelectric signal, B represents the first blue photoelectric signal, H represents the angular parameter in the first position coordinates, and L and S represent the radius parameters in the first position coordinates.

7. A computer readable storage medium characterized in that, The computer readable storage medium stores computer instructions for causing the computer to perform the arc discharge spectrum detection method as claimed in claim 5 or 6.

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