Intelligent grounding wire device

Abstract

The invention discloses an intelligent grounding wire device which comprises an electroscope, a motor, a torque sensor, an inertial measurement unit and a main controller. The electroscope is used for collecting the voltage of the cable to be measured and judging whether the voltage is smaller than a preset voltage safety threshold value or not, and if yes, data collection signals are sent to the torque sensor and the inertial measurement unit respectively; the torque sensor is used for acquiring torque data of the motor according to the data acquisition signal and sending the torque data to the main controller; the inertial measurement unit is used for acquiring initial six-axis data according to the data acquisition signal and sending the initial six-axis data to the main controller; and the main controller is used for performing state evaluation on the received torque data and the initial six-axis data to obtain a target state type of the cable to be detected. According to the invention, cooperative work among the electroscope, the torque sensor, the inertial measurement unit and the main controller is combined, so that the purpose of accurately identifying the state of the cable is achieved, and the problems of roughness and unreliability of single data source judgment in the prior art are solved.

Description

Technical Field

[0001] This application relates to the field of power system grounding wire operation technology, specifically to an intelligent grounding wire device. Background Technology

[0002] In the operation and maintenance of power systems, connecting grounding wires is a crucial safety measure. It is used to release residual charge on de-energized equipment and prevent induced voltage from injuring people. It is the last line of defense to protect the lives of workers. Traditional grounding wire devices are purely mechanical structures. Their connection, removal and connection reliability depend entirely on the manual judgment and experience of the operators, resulting in safety blind spots.

[0003] With technological advancements, some grounding wire devices with preliminary condition monitoring functions have emerged. However, most of these existing devices have only one monitoring dimension, which can easily lead to misjudgments. Summary of the Invention

[0004] In view of this, this application provides an intelligent grounding wire device to solve the problem that most existing devices have only one monitoring dimension, which can easily lead to misjudgment.

[0005] To achieve the above objectives, the following solution is proposed:

[0006] An intelligent grounding device includes: an electroscope, a motor, a torque sensor, an inertial measurement unit, and a main controller;

[0007] The electroscope is used to collect the voltage of the cable under test and determine whether the voltage is less than a preset voltage safety threshold. If so, it sends data acquisition signals to the torque sensor and the inertial measurement unit respectively.

[0008] The torque sensor is used to collect the torque data of the motor based on the data acquisition signal and send it to the main controller;

[0009] The inertial measurement unit is used to acquire initial six-axis data based on the data acquisition signal and send it to the main controller;

[0010] The main controller is used to perform state evaluation on the received torque data and initial six-axis data to obtain the target state type of the cable under test.

[0011] Preferably, the process by which the main controller performs state evaluation on the received torque data and initial six-axis data to obtain the target state type of the cable under test includes:

[0012] The torque data and the initial six-axis data are aligned to obtain synchronized target torque data and target six-axis data;

[0013] The target torque data and target six-axis data are input into a pre-trained sequence processing hybrid model to output the initial state type; the sequence processing hybrid model is trained using a dataset containing torque data and six-axis data of multiple cable samples as training samples, and the true state type of each cable sample as the sample label.

[0014] Determine whether the initial state type is a preset normal state type;

[0015] If not, then the normal state type is determined as the target state type;

[0016] If so, tighten the grounding wire and re-collect the motor's status data to determine the initial status type until the initial status type is normal.

[0017] Preferably, the step of aligning the torque data and the initial six-axis data to obtain synchronized target torque data and target six-axis data includes:

[0018] Get the current timestamp;

[0019] Configure the timestamps on the torque data and the initial six-axis data respectively to obtain the first torque data and the first six-axis data;

[0020] The first torque data and the first six-axis data are aligned in time using a time interpolation algorithm to obtain synchronized target torque data and target six-axis data.

[0021] Preferably, the step of inputting the target torque data and target six-axis data into a pre-trained sequence processing hybrid model to output the initial state type includes:

[0022] The local feature extraction module in the sequence processing hybrid model is used to extract features from the target torque data to obtain motor fluctuation features;

[0023] The gated loop module in the sequence processing hybrid model is used to evaluate the state of the motor fluctuation characteristics and the target six-axis data to obtain the target state type.

[0024] Preferably, the intelligent grounding wire device further includes a chip and a wireless communication module;

[0025] The chip is used to collect the current operating data of the cable under test, obtain the target status type, encrypt the current operating data using the target status type to obtain target encrypted data, and send it to the wireless communication module.

[0026] The wireless communication module is used to send the received target encrypted data to the mobile terminal.

[0027] Preferably, the process of encrypting the current running data using the target state type to obtain target encrypted data includes:

[0028] Generate a state signal based on the target state type;

[0029] Acquire the first key data of the mobile terminal and the second key data of the smart grounding wire device;

[0030] A symmetric key and an authentication tag that uniquely correspond to the state signal are generated using the first key data and the second key data.

[0031] The current operating data is combined with the status signal to obtain the business data;

[0032] The business data is encrypted to obtain the target encrypted data.

[0033] Preferably, encrypting the business data to obtain the target encrypted data includes:

[0034] Get the device ID, current timestamp, and serial number;

[0035] The service data is marked using the device ID, timestamp, and serial number to obtain the target plaintext;

[0036] The target plaintext is encrypted using the symmetric key to obtain the first encrypted data;

[0037] The first encrypted data is packaged with the authentication tag to obtain the second encrypted data;

[0038] A preset communication protocol header is added to the second encrypted data to obtain the target encrypted data.

[0039] Preferably, the intelligent grounding wire device further includes a retractable insulating rod, an insulating rod handle, and an audible and visual alarm unit;

[0040] The telescopic insulating rod is made of glass fiber reinforced plastic, with an insulation class of Class B, a telescopic range L of 1≤L≤3 (unit: meters / m), and a safety distance of not less than 0.7 meters.

[0041] The handle of the insulating rod is equipped with a remote control function button. When the target state type of the cable under test is a preset abnormal type, an alarm signal is sent to the audible and visual alarm unit through the remote control button function.

[0042] The audible and visual alarm unit is used to receive the alarm signal to issue an alarm.

[0043] Preferably, the intelligent grounding wire device further includes a wire clamp; the wire clamp is used to clamp the cable to be tested;

[0044] The wire clamp includes a wire clamp opening and a wire clamp housing;

[0045] The contact area between the clamp and the cable under test is coated with an oxide dispersion reinforced copper coating; the coating of the clamp shell is a tungsten carbide-cobalt coating prepared by supersonic flame spraying.

[0046] Preferably, it further includes:

[0047] After receiving the target encrypted data, the mobile terminal extracts the authentication tag from the target encrypted data;

[0048] The target encrypted data is verified and calculated to generate a new authentication tag;

[0049] Determine whether the authentication label is the same as the new authentication label;

[0050] If so, the target encrypted data is decrypted to obtain the current operating data of the cable under test;

[0051] If not, the target encrypted data is determined to be invalid.

[0052] As can be seen from the above technical solution, this application provides an intelligent grounding wire device, including: an electroscope, a motor, a torque sensor, an inertial measurement unit, and a main controller; the electroscope is used to collect the voltage of the cable under test and determine whether the voltage is less than a preset voltage safety threshold. If so, it sends data acquisition signals to the torque sensor and the inertial measurement unit respectively; the torque sensor is used to collect the torque data of the motor according to the data acquisition signals and send it to the main controller; the inertial measurement unit is used to collect initial six-axis data according to the data acquisition signals and send it to the main controller; the main controller is used to perform state evaluation on the received torque data and initial six-axis data to obtain the target state type of the cable under test. This application achieves accurate cable status identification by fusing data from torque sensors and inertial measurement units (IMUs). It abandons the reliance on single-data judgment in existing technologies and combines the collaborative work of an electroscope, torque sensor, IMU, and main controller. First, the electroscope collects voltage data and compares it to a voltage safety threshold to preliminarily determine the safety of the cable under test. If the voltage is below the safety threshold, a more detailed status assessment is performed. Torque sensors and IMUs collect data: the torque sensor collects motor torque data, which directly determines whether the intelligent grounding device is properly secured to the cable; the initial six-axis data collected by the IMU further enhances accuracy. This mutual verification allows the main controller to accurately assess and determine the target status type of the cable under test, overcoming the coarseness and unreliability of existing technologies that rely on single data sources. Attached Figure Description

[0053] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0054] Figure 1 This is a schematic diagram of the structure of an intelligent grounding wire device provided in an embodiment of this application;

[0055] Figure 2 This is a schematic diagram of the structure of a sequence processing hybrid model provided in an embodiment of this application;

[0056] Figure 3 This is a schematic diagram of another intelligent grounding wire device provided in an embodiment of this application;

[0057] Figure 4 This is a schematic diagram of another intelligent grounding wire device provided in an embodiment of this application. Detailed Implementation

[0058] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0059] This invention provides an intelligent grounding wire device, such as... Figure 1 As shown, the device includes: an electroscope, a motor, a torque sensor, an inertial measurement unit, and a main controller;

[0060] The electroscope is used to collect the voltage of the cable under test and determine whether the voltage is less than a preset voltage safety threshold. If so, it sends data acquisition signals to the torque sensor and the inertial measurement unit respectively.

[0061] The torque sensor is used to collect the torque data of the motor based on the data acquisition signal and send it to the main controller;

[0062] The inertial measurement unit is used to acquire initial six-axis data based on the data acquisition signal and send it to the main controller;

[0063] The main controller is used to perform state evaluation on the received torque data and initial six-axis data to obtain the target state type of the cable under test.

[0064] Specifically, a 1000Hz high-frequency torque sensor can be used to collect the motor's torque data. To reduce data redundancy and computational load, the inertial measurement unit (IMU) can be selected to collect the initial six-axis data of the motor, namely three-axis acceleration and three-axis angular velocity, at a sampling frequency of 100Hz. The main controller can be a controller with an integrated AI processing unit, which can intelligently process the torque data and the initial six-axis data, evaluate the state, and obtain the target state type.

[0065] The voltage safety threshold can be set to a power frequency voltage of 36V, which is also a safe operating threshold. If the voltage of the cable under test is not less than 36V, it is determined that the cable under test is energized and poses a safety risk. In this case, an alarm can be triggered, such as a continuous sharp beep or a rapidly flashing red light, to issue an electrical interlock signal and physically prohibit the tightening operation from starting. This fundamentally prevents malicious misoperation such as closing the circuit breaker with the grounding wire connected, thereby improving safety. If the voltage of the cable under test is less than 36V, a warning alarm can be given, such as an intermittent beep or a flashing yellow light, to remind the operator to pay attention, but not to prohibit the operation. Instead, the status is judged.

[0066] Existing voltage detectors can also perform voltage detection. One method integrates a voltage detection circuit based on capacitive voltage division within the grounding clamp. When the clamp approaches the cable, the circuit detects the electric field signal. When the signal strength exceeds a fixed threshold, a passive buzzer in the drive handle sounds continuously, and a red LED illuminates as a warning that the cable is live. However, this judgment logic is simplistic, relying solely on a voltage threshold to determine the cable's state, making it highly inaccurate. Furthermore, existing torque detection methods integrate a resistance strain gauge torque sensor within the tensioner drive motor at the grounding operating lever head. This sensor converts the torque value into an electrical signal, which is then digitized by an 8-bit or 16-bit analog-to-digital converter. The digitized torque value (unit: Newtons) is then displayed. The torque curve is simply displayed on the LCD screen at the control lever handle, but it only provides real-time readings and is a very single judgment standard. The termination of the tightening process relies entirely on the operator's subjective experience. Different people have different standards for judging "tight enough," which can easily lead to over-tightening (damaging the clamps and cable) or under-tightening (leading to excessive contact resistance). When a short-circuit current passes through, the under-tightened contact point will generate local high temperatures, which may cause melting or even explosion. However, the existing technology does not have an abnormal judgment mechanism. For example, when there are signs such as thread stripping or foreign object jamming during the tightening process, the torque curve will show abnormal fluctuations of a specific shape. The existing technology cannot capture and identify these subtle characteristics and can only issue an alarm after the fault occurs, but it is too late. This application can collect torque data, fuse it with the initial six-axis data, and provide it to the main controller for analysis to obtain the accurate condition type of the cable under test.

[0067] As can be seen from the above technical solution, this application provides an intelligent grounding wire device, including: an electroscope, a motor, a torque sensor, an inertial measurement unit, and a main controller; the electroscope is used to collect the voltage of the cable under test and determine whether the voltage is less than a preset voltage safety threshold. If so, it sends data acquisition signals to the torque sensor and the inertial measurement unit respectively; the torque sensor is used to collect the torque data of the motor according to the data acquisition signals and send it to the main controller; the inertial measurement unit is used to collect initial six-axis data according to the data acquisition signals and send it to the main controller; the main controller is used to perform state evaluation on the received torque data and initial six-axis data to obtain the target state type of the cable under test. This application achieves accurate cable status identification by fusing data from torque sensors and inertial measurement units (IMUs). It abandons the reliance on single-data judgment in existing technologies and combines the collaborative work of an electroscope, torque sensor, IMU, and main controller. First, the electroscope collects voltage data and compares it to a voltage safety threshold to preliminarily determine the safety of the cable under test. If the voltage is below the safety threshold, a more detailed status assessment is performed. Torque sensors and IMUs collect data: the torque sensor collects motor torque data, which directly determines whether the intelligent grounding device is properly secured to the cable; the initial six-axis data collected by the IMU further enhances accuracy. This mutual verification allows the main controller to accurately assess and determine the target status type of the cable under test, overcoming the coarseness and unreliability of existing technologies that rely on single data sources.

[0068] In the device provided in this embodiment of the invention, the process by which the main controller performs state evaluation on the received torque data and initial six-axis data to obtain the target state type of the cable under test may include the following steps:

[0069] The torque data and the initial six-axis data are aligned to obtain synchronized target torque data and target six-axis data;

[0070] The target torque data and target six-axis data are input into a pre-trained sequence processing hybrid model to output the initial state type; the sequence processing hybrid model is trained using a dataset containing torque data and six-axis data of multiple cable samples as training samples, and the true state type of each cable sample as the sample label.

[0071] Determine whether the initial state type is a preset normal state type;

[0072] If so, then the normal state type is determined as the target state type;

[0073] If not, tighten the grounding wire and re-collect the motor's status data to determine the initial status type until the initial status type is normal.

[0074] Specifically, in order to achieve accurate data fusion, torque data and initial six-axis data can be aligned to provide synchronous timing input for subsequent sequence processing hybrid models, which can improve data processing efficiency.

[0075] The main controller in this application includes a data processing module configured with a sequence processing hybrid model. It can process the synchronized target torque data and target six-axis data, and output the initial state type of the cable under test. The initial state types include normal, slippage warning, and non-standard operation. The normal type is the preset normal state type. The slippage warning and non-standard operation types are not normal state types but abnormal types. Therefore, if an abnormal type occurs, it indicates that the grounding wire needs to be tightened. After tightening, the initial state type is re-evaluated until a normal state type is obtained, at which point subsequent operations can proceed.

[0076] Optionally, the step of aligning the torque data and the initial six-axis data in the above process to obtain synchronized target torque data and target six-axis data includes:

[0077] Get the current timestamp;

[0078] Configure the timestamps on the torque data and the initial six-axis data respectively to obtain the first torque data and the first six-axis data;

[0079] The first torque data and the first six-axis data are aligned in time using a time interpolation algorithm to obtain synchronized target torque data and target six-axis data.

[0080] Specifically, the current time can be obtained first, and then a high-precision timestamp can be configured based on the current time to configure the torque data and the initial six-axis data. This makes it easier to synchronize the two. The time difference algorithm is used to align the first torque data and the first six-axis data with the configured timestamp, thereby achieving the purpose of synchronization.

[0081] Optionally, the process of inputting the target torque data and target six-axis data into a pre-trained sequence processing hybrid model to output an initial state type is described in detail in the following embodiments.

[0082] The local feature extraction module in the sequence processing hybrid model is used to extract features from the target torque data to obtain motor fluctuation features;

[0083] The gated loop module in the sequence processing hybrid model is used to evaluate the state of the motor fluctuation characteristics and the target six-axis data to obtain the target state type.

[0084] Specifically, the structure of the sequence processing hybrid model is as follows: Figure 2 As shown, it includes a local feature extraction module and a gated loop module. The input end of the local feature extraction module serves as the first input end a1 of the sequence processing hybrid model. The first input end b1 of the gated loop module is connected to the output end of the local feature extraction module. The second input end b2 of the gated loop module serves as the second input end a2 of the sequence processing hybrid model. The output end of the gated loop module serves as the output end of the sequence processing hybrid model.

[0085] Among them, the local feature extraction module can use a convolutional neural network (CNN), which can capture the tiny abnormal fluctuations of the motor from the high-frequency torque data sequence, such as the instantaneous peak or drop in torque that indicates slippage; the gated recurrent module (GRU) is a special recurrent neural network (RNN) with a "memory" function, which can process the long-term dependence of a time series of sensor data. It will refer to and remember previous data, and thus understand the complete fastening dynamics process from slow force application to linear growth, and then to entering the plateau period, and comprehensively judge the influence of operating posture (such as whether it is uniform speed or whether there is vibration) on torque.

[0086] In addition to outputting the initial state type, the model can also simultaneously output an installation quality score (0-100%) and a confirmation signal for the best fastening point, ensuring the standardization and traceability of the installation.

[0087] Furthermore, considering that feedback needs to be provided to the mobile terminal after the target status type is determined so that the operator can know the status of the cable or the device and keep a record, the intelligent grounding wire device provided in this application may also include a chip and a wireless communication module.

[0088] The chip is used to collect the current operating data of the cable under test, obtain the target status type, encrypt the current operating data using the target status type to obtain target encrypted data, and send it to the wireless communication module.

[0089] The wireless communication module is used to send the received target encrypted data to the mobile terminal.

[0090] The current operating data can refer to business data, including torque, voltage, GPS, and status, etc. This data indicates the device's operating status and is unique. Therefore, it can be used to encrypt the target status type before sending it to the wireless communication module, which then forwards it to the mobile terminal. The chip can be a national cryptographic security chip that supports SM2 / SM3 / SM4 algorithms.

[0091] In existing technologies, point-to-point communication is typically achieved between a Bluetooth Low Energy module and a handheld terminal running a dedicated Android system. The data packet structure is defined as follows: Device ID (2 bytes), Torque value (4 bytes), and Voltage verification status (1 byte, where 0 and 1 map to "no power" and "powered" states, respectively). The communication distance is usually less than 20 meters, and it is easily affected by complex electromagnetic environments and obstacles, resulting in poor stability. Therefore, this application uses a 4G / 5G wireless communication module, which can ensure efficient and unlimited data transmission over distance.

[0092] Furthermore, current data transmission encryption methods are extremely rudimentary, typically employing fixed XOR checksums or simple AES-128-ECB encryption. While AES encryption uses a 128-bit key, its ECB mode has serious security vulnerabilities. When encrypting long data, ECB simply divides the data into several independent blocks and encrypts each block separately using the same key. This results in different plaintext blocks being encrypted into different ciphertext blocks, and identical plaintext blocks into identical ciphertext blocks. This means any repetition or regular structure in the original data will be preserved in the encrypted ciphertext, and therefore should be avoided as much as possible. Additionally, the entire communication process lacks a two-way authentication mechanism and anti-replay attack design. A replay attack is a network attack where attackers do not need to decipher the encrypted data packets but simply intercept legitimate communication data once and then resend it at a later time, either unchanged or with a slight delay. The data packets lack timestamps (recording the exact time the data packet was created or sent) and sequence numbers, making them extremely vulnerable to interception and repeated transmission by malicious devices, thus forging device status. Therefore, it is vulnerable to being hacked, and lacks a message authentication code mechanism. The data receiver cannot verify whether the data has been tampered with during transmission, nor can it verify the legitimacy of the sender. As a result, attackers can easily intercept, tamper with, or replay data packets. For example, a fake signal indicating normal torque but no voltage could be sent to the backend monitoring system, potentially misleading the system into believing that the grounding wire is reliably installed. This could lead to a safety accident for on-site maintenance personnel, with unimaginable consequences.

[0093] Therefore, this application provides a method for encrypting the currently running data using the target state type to obtain target encrypted data, as detailed below:

[0094] Generate a state signal based on the target state type;

[0095] Acquire the first key data of the mobile terminal and the second key data of the smart grounding wire device;

[0096] A symmetric key and an authentication tag that uniquely correspond to the state signal are generated using the first key data and the second key data.

[0097] The current operating data is combined with the status signal to obtain the business data;

[0098] The business data is encrypted to obtain the target encrypted data.

[0099] The step of encrypting the business data to obtain the target encrypted data includes:

[0100] Get the device ID, current timestamp, and serial number;

[0101] The service data is marked using the device ID, timestamp, and serial number to obtain the target plaintext;

[0102] The target plaintext is encrypted using the symmetric key to obtain the first encrypted data;

[0103] The first encrypted data is packaged with the authentication tag to obtain the second encrypted data;

[0104] A preset communication protocol header is added to the second encrypted data to obtain the target encrypted data.

[0105] Specifically, two-way authentication and key negotiation can be performed using the SM2 elliptic curve cryptography algorithm to generate a unique symmetric key K and authentication tag that correspond to the state signal. Then, the current running data and the state signal are combined to obtain the business data, which can initially ensure the security of the data. Then, encryption is performed to make it more secure.

[0106] In the specific encryption process, to make business data more distinctive and unique, and to improve the security level, the device ID (ID of the cable under test or the ID of this device), the current time timestamp, and the serial number (serial number of the cable under test or the serial number of this device) are obtained. These representative data are used to mark the business data, and then encryption is performed using a symmetric key. The SM4 algorithm can be used for this purpose. The GCM mode in the SM4 algorithm has strong anti-attack capabilities, providing excellent data confidentiality, integrity, and authenticity. It effectively prevents third-party eavesdropping, tampering, and replay attacks, and its security far exceeds that of general-purpose algorithms and meets domestic requirements. Encryption and authentication are completed in a single operation, with lower processing latency than the step-by-step "encryption + HMAC" method, making it more suitable for resource-constrained embedded devices and power industrial control scenarios with high real-time requirements. In this process, an initial vector, i.e., a randomly generated, publicly available "seed value," can also be set. This ensures the randomness of encryption, strengthens the prevention of pattern leakage, achieves strong encryption, and guarantees the secure transmission of the target encrypted data.

[0107] Finally, the first encrypted data obtained after encryption is packaged with the authentication tag to obtain the second encrypted data. A preset communication protocol header is added to obtain the final target encrypted data.

[0108] Furthermore, after receiving the target encrypted data, the mobile device also needs to decrypt it. The specific process is as follows:

[0109] After receiving the target encrypted data, the mobile terminal extracts the authentication tag from the target encrypted data;

[0110] The target encrypted data is verified and calculated to generate a new authentication tag;

[0111] Determine whether the authentication label is the same as the new authentication label;

[0112] If so, the target encrypted data is decrypted to obtain the current operating data of the cable under test;

[0113] If not, the target encrypted data is determined to be invalid.

[0114] Specifically, the mobile device can use the same symmetric key K to decrypt and recalculate the authentication tag, comparing it with the original authentication tag. If they match, it means that the target encrypted data has not been tampered with during transmission and was indeed encrypted with the correct key. Then, it decrypts to obtain the original current running data. It can also verify the validity of the timestamp and sequence number, such as whether they are within a reasonable time window and whether the sequence number is consecutive. Only after all verifications pass is the data considered legitimate and valid. If at least one step fails verification, it means that the target encrypted data may have been tampered with or the key is incorrect. The target encrypted data needs to be discarded, and a security event / alarm should be recorded.

[0115] Optionally, the intelligent grounding wire device provided in this application may also include a retractable insulating rod, an insulating rod handle, and an audible and visual alarm unit;

[0116] The telescopic insulating rod is made of glass fiber reinforced plastic, with an insulation class of Class B, a telescopic range L of 1≤L≤3 (unit: meters / m), and a safety distance of not less than 0.7 meters.

[0117] The handle of the insulating rod is equipped with a remote control function button. When the target state type of the cable under test is a preset abnormal type, an alarm signal is sent to the audible and visual alarm unit through the remote control button function.

[0118] The audible and visual alarm unit is used to receive the alarm signal to issue an alarm.

[0119] Specifically, glass fiber reinforced plastic (also known as fiberglass) is a composite material with a wide variety of varieties, good performance, and broad applications. It is a functional new material made from synthetic resin and glass fiber through a composite process. Insulation class is a standard for the heat resistance of insulating materials in electrical equipment (such as motors, transformers, and windings), indicated by letters (such as A, B, F, H) to represent its maximum permissible operating temperature. Class B indicates that the insulating material can operate safely at 130°C for extended periods, and is allowed to reach 155°C for short periods. The retractable insulating rod ensures a safe distance and allows real-time monitoring of the grounding cable voltage, ensuring operational safety. It can be operated by a single person, reducing labor costs.

[0120] The audible and visual alarm unit is configured as follows: red flashing = sensor malfunction, yellow flashing = low battery.

[0121] Furthermore, considering the outdated materials and processes used in the core components of existing intelligent grounding devices, resulting in insufficient reliability and lifespan, for example, the wire clamps are mainly made of T2 pure copper or 6061 aluminum alloy, formed by casting or forging. Their advantage is good conductivity, but the material is relatively soft, with poor wear resistance and arc erosion resistance. After repeated use, the contact surface is prone to oxide layer and arc erosion pits, resulting in a significant increase in contact resistance. Furthermore, the T2 pure copper clamp has low hardness and low softening temperature. Under the instantaneous high temperature of short-circuit current, the clamp opening may soften, leading to a decrease in contact pressure and creating a vicious cycle. The operating rod shell is usually made of ABS engineering plastic injection molding or Q235 carbon steel sheet metal processing followed by ordinary epoxy resin anti-rust paint spraying. However, ABS plastic has poor impact resistance and is prone to aging and cracking. The paint film of the steel shell is very thin and is easily damaged by collisions with gravel and acid and alkaline environments in the field, leading to internal metal corrosion and moisture absorption of electronic components. The ordinary protective coating of the shell is difficult to resist the wear and corrosion of long-term field operation, resulting in a shortened overall lifespan of the equipment and high maintenance costs.

[0122] Therefore, the intelligent grounding wire device provided in this application also includes a wire clamp; the wire clamp is used to clamp the cable to be tested;

[0123] The wire clamp includes a wire clamp opening and a wire clamp housing;

[0124] The contact area between the clamp and the cable under test is coated with an oxide dispersion reinforced copper coating; the coating of the clamp shell is a tungsten carbide-cobalt coating prepared by supersonic flame spraying.

[0125] Specifically, the oxide dispersion reinforced copper coating is a high-performance composite material coating formed by uniformly dispersing nano-sized oxide particles (such as Al2O3 and Y2O3) in a copper matrix. It has extremely low contact resistance and is stable throughout its lifespan. It has strong resistance to arc erosion and wear, and can withstand the instantaneous thermal shock of short-circuit current, thus fundamentally ensuring the electrical stability of the grounding point. Furthermore, this device can also sense the mechanical and motion state of the cable clamp during the cable clamping process in real time.

[0126] The coating on the wire clamp housing is made of ultrasonic tungsten carbide-cobalt, which has a hardness of over Hv1400. It has both high wear resistance and corrosion resistance, providing robust protection for internal precision electronic components in harsh field operating environments and significantly extending the overall lifespan of the device.

[0127] Among its features, the system can query the status of the clamps (e.g., determine whether they are reliably tightened based on AI). If the clamps are reliably grounded, it is determined to be an induced voltage, which only provides a prompt rather than an alarm, reducing the false alarm rate in on-site operations and improving efficiency.

[0128] Furthermore, the intelligent grounding device provided in this application also includes a grounding wire interface, a motor drive shaft, a rotating device housing, a lithium battery, an LCD display screen, and a battery unit, such as... Figure 3 As shown.

[0129] In addition, this application may also provide an intelligent grounding device specifically designed to handle encryption processes, such as... Figure 4 As shown.

[0130] In existing grounding wire devices, modules such as torque detection, voltage testing, and communication operate independently, failing to achieve information fusion and collaborative intelligence. For example, when the voltage testing module detects induced voltage, the system cannot make a comprehensive judgment based on the installation status of the clamps, and can only issue a mechanical alarm. This often results in false alarms due to induced electrical interference, affecting operational efficiency. The entire device cannot generate a highly reliable electronic report containing time, location, installation quality scores, and key data records throughout the process, making it difficult to meet the needs of modern power grids for intelligent management during maintenance operations. This application presents an intelligent grounding wire device formed through multi-module configuration. This device integrates "voltage testing + grounding + communication + monitoring" functions, eliminating the need for switching between multiple devices and improving terminal operation and maintenance efficiency. It is particularly suitable for complex scenarios such as high altitudes and narrow trenches. The collaborative judgment of voltage testing and installation status, along with the deep integration of AI and encryption, forms a highly reliable and trustworthy intelligent operation closed-loop device, providing a solid data foundation for the safe production management of smart grids.

[0131] This device can determine the target state type and encrypt data transmission, providing an efficient and safe foundation for the subsequent grounding installation of overhead cables, thereby improving the construction efficiency and safety of the power system.

[0132] Furthermore, the functional modules in the various embodiments of this disclosure can be integrated together to form an independent part, or each module can exist independently, or two or more modules can be integrated to form an independent part. If the function is implemented as a software functional module and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this disclosure, in essence, or the part that contributes to the prior art, or a part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, a live streaming device, or a network device, etc.) to execute all or part of the steps of the methods in the various embodiments of this disclosure.

[0133] Finally, it should be noted that in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0134] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0135] The above description of the disclosed embodiments enables those skilled in the art to make or use this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A smart grounding wire device, characterized in that, include: Electroscope, motor, torque sensor, inertial measurement unit, and main controller; The electroscope is used to collect the voltage of the cable under test and determine whether the voltage is less than a preset voltage safety threshold. If so, it sends data acquisition signals to the torque sensor and the inertial measurement unit respectively. The torque sensor is used to collect the torque data of the motor based on the data acquisition signal and send it to the main controller; The inertial measurement unit is used to acquire the initial six-axis data of the motor according to the data acquisition signal and send it to the main controller; The main controller is used to perform state evaluation on the received torque data and initial six-axis data to obtain the target state type of the cable under test.

2. The apparatus according to claim 1, characterized in that, The main controller is used to perform state evaluation on the received torque data and initial six-axis data to obtain the target state type of the cable under test, including: The torque data and the initial six-axis data are aligned to obtain synchronized target torque data and target six-axis data; The target torque data and target six-axis data are input into a pre-trained sequence processing hybrid model to output the initial state type; the sequence processing hybrid model is trained using a dataset containing torque data and six-axis data of multiple cable samples as training samples, and the true state type of each cable sample as the sample label. Determine whether the initial state type is a preset normal state type; If so, then the normal state type is determined as the target state type; If not, tighten the grounding wire and re-collect the motor's status data to determine the initial status type until the initial status type is normal.

3. The apparatus according to claim 2, characterized in that, The process of aligning the torque data and the initial six-axis data to obtain synchronized target torque data and target six-axis data includes: Get the current timestamp; Configure the timestamps on the torque data and the initial six-axis data respectively to obtain the first torque data and the first six-axis data; The first torque data and the first six-axis data are aligned in time using a time interpolation algorithm to obtain synchronized target torque data and target six-axis data.

4. The apparatus according to claim 2, characterized in that, The step of inputting the target torque data and target six-axis data into a pre-trained sequence processing hybrid model to output the initial state type includes: The local feature extraction module in the sequence processing hybrid model is used to extract features from the target torque data to obtain motor fluctuation features; The gated loop module in the sequence processing hybrid model is used to evaluate the state of the motor fluctuation characteristics and the target six-axis data to obtain the target state type.

5. The apparatus according to claim 1, characterized in that, The intelligent grounding wire device also includes a chip and a wireless communication module; The chip is used to collect the current operating data of the cable under test, obtain the target status type, encrypt the current operating data using the target status type to obtain target encrypted data, and send it to the wireless communication module. The wireless communication module is used to send the received target encrypted data to the mobile terminal.

6. The apparatus according to claim 5, characterized in that, The process of encrypting the currently running data using the target state type to obtain the target encrypted data includes: Generate a state signal based on the target state type; Acquire the first key data of the mobile terminal and the second key data of the smart grounding wire device; A symmetric key and an authentication tag that uniquely correspond to the state signal are generated using the first key data and the second key data. The current operating data is combined with the status signal to obtain the business data; The business data is encrypted to obtain the target encrypted data.

7. The apparatus according to claim 6, characterized in that, The step of encrypting the business data to obtain the target encrypted data includes: Get the device ID, current timestamp, and serial number; The service data is marked using the device ID, timestamp, and serial number to obtain the target plaintext; The target plaintext is encrypted using the symmetric key to obtain the first encrypted data; The first encrypted data is packaged with the authentication tag to obtain the second encrypted data; A preset communication protocol header is added to the second encrypted data to obtain the target encrypted data.

8. The apparatus according to any one of claims 1 to 7, characterized in that, The intelligent grounding wire device also includes a retractable insulating rod, an insulating rod handle, and an audible and visual alarm unit; The telescopic insulating rod is made of glass fiber reinforced plastic, with an insulation class of Class B, a telescopic range L of 1≤L≤3 (unit: meters / m), and a safety distance of not less than 0.7 meters. The handle of the insulating rod is equipped with a remote control function button. When the target state type of the cable under test is a preset abnormal type, an alarm signal is sent to the audible and visual alarm unit through the remote control button function. The audible and visual alarm unit is used to receive the alarm signal to issue an alarm.

9. The apparatus according to any one of claims 1 to 7, characterized in that, The intelligent grounding wire device also includes a wire clamp; the wire clamp is used to clamp the cable to be tested. The wire clamp includes a wire clamp opening and a wire clamp housing; The contact area between the wire clamp and the cable under test is coated with an oxide dispersion reinforced copper coating. The coating on the wire clamp housing is a tungsten carbide-cobalt coating prepared by supersonic flame spraying.

10. The apparatus according to any one of claims 1 to 7, characterized in that, Also includes: After receiving the target encrypted data, the mobile terminal extracts the authentication tag from the target encrypted data; The target encrypted data is verified and calculated to generate a new authentication tag; Determine whether the authentication label is the same as the new authentication label; If so, the target encrypted data is decrypted to obtain the current operating data of the cable under test; If not, the target encrypted data is determined to be invalid.

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