Circuit breaker speed detection device and equipment based on GPS second pulse vector signal

Abstract

The invention provides a circuit breaker speed detection device and equipment based on a GPS second pulse vector signal. The device comprises a host module, an acquisition module, a GPS synchronization module and a wireless transceiver module. The acquisition module comprises a centralized reading unit and an acquisition unit, the acquisition unit is used for selecting a target sensor according to configuration to acquire stroke data of a target circuit breaker and transmitting the stroke data to the centralized reading unit, and the centralized reading unit is used for receiving the stroke data and transmitting the stroke data to the host module; the GPS synchronization module is used for providing a synchronous clock signal; the wireless transceiver module is used for providing a wireless data transmission function; and the host module is used for receiving the travel data transmitted by the acquisition module and calculating the speed value of each phase of the target circuit breaker. The problems of poor anti-interference performance, difficulty in signal synchronous calibration, high equipment maintenance cost and the like in the prior art can be solved, the accuracy and the efficiency of circuit breaker performance detection are effectively improved, the maintenance cost is reduced, and safe and stable operation of a power grid is ensured.

Description

Technical Field

[0001] The present application relates to the technical field of power system monitoring, and in particular to a circuit breaker speed detection device and equipment based on GPS second pulse vector signals. Background Art

[0002] In the power system, circuit breakers are key electrical equipment, and their performance is directly related to the safe and stable operation of the power grid. In order to ensure the normal operation of the circuit breaker, it is necessary to regularly perform performance tests on it, including the measurement of key parameters such as the circuit breaker's opening and closing speed and travel curve. The accurate measurement of these parameters is crucial to evaluating the performance of the circuit breaker.

[0003] Traditional circuit breaker performance detection mainly relies on the circuit breaker characteristic analyzer, which transmits analog signal information with the speed sensor through wired transmission. However, this traditional detection method has the following major technical problems: the detection site is usually in a strong electric field environment, and the shielding effect of wired transmission is limited. In particular, the wired transmission of analog signals is easily interfered by the strong external electric field, resulting in information distortion, inaccurate test results, and easy misjudgment; the existing transmission method cannot perform signal time synchronization calibration, and the influence of signal transmission line impedance and transmission distance can easily lead to data asynchrony, which in turn leads to deviations in detection results; frequent detection can easily lead to aging, breakage and damage of signal transmission lines, which not only affects the progress of work, but also increases the cost of equipment maintenance. It can be seen that the existing circuit breaker detection technology has the problems of poor anti-interference, difficult signal synchronization calibration and high equipment maintenance cost.

[0004] The preceding description is intended to provide general background information and does not necessarily constitute prior art. Summary of the invention

[0005] In response to the above technical problems, the present application provides a circuit breaker detection speed device and equipment based on GPS second pulse vector signals, which solves the problems of large on-site workload, low efficiency and low safety in the prior art. It can reduce the volume and weight of the device, thereby reducing transportation costs, while improving the efficiency of on-site operations, reducing the occurrence of safety accidents, and improving the safety of the power system.

[0006] In order to solve the above technical problems, the present application provides a circuit breaker speed detection device based on GPS second pulse vector signal, including a host module, a collection module, a GPS synchronization module and a wireless transceiver module;

[0007] The collection module includes at least one centralized collection unit and at least three collection units. The collection unit is used to select a target sensor according to the configuration of the centralized collection unit, so as to collect the travel data of the target circuit breaker through the target sensor, and then transmit the travel data to the centralized collection unit through the wireless transceiver module. The centralized collection unit is used to receive the travel data transmitted by the collection unit through the wireless transceiver module, and transmit the travel data to the host module;

[0008] The GPS synchronization module is used to provide a synchronization clock signal for the host module and the acquisition module;

[0009] The wireless transceiver module is used to provide a wireless data transmission function between the collection unit and the collection unit;

[0010] The host module is used to receive the travel data transmitted by the acquisition module, and calculate the speed value of each phase of the target circuit breaker according to the travel data.

[0011] Furthermore, in some embodiments of the present application, each of the acquisition units includes a wireless transceiver module, an analog-to-digital conversion module, an analog stroke sensor and a digital stroke sensor. The analog stroke sensor and the digital stroke sensor corresponding to each of the acquisition units are installed on the closing and opening motion mechanisms of each phase of the target circuit breaker, and are used to collect the stroke waveforms corresponding to the opening and closing of each phase of the target circuit breaker. The analog-to-digital conversion module is used to convert the acquisition signal of the analog stroke sensor into a corresponding digital signal. The wireless transceiver module is used to transmit the stroke waveforms corresponding to the opening and closing of each phase of the target circuit breaker collected by the acquisition unit to the collection unit, and is used to receive the acquisition instructions and configuration information issued by the collection unit.

[0012] Furthermore, in some embodiments of the present application, the collection unit includes a wireless transceiver module and a GPS synchronization module, the wireless transmission module is used to receive the travel waveform corresponding to the opening and closing of each phase of the target circuit breaker transmitted by the collection unit and transmit it to the host module, and is used to send the collection instructions and the configuration information to each of the collection units.

[0013] Furthermore, in some embodiments of the present application, the GPS module includes a GPS synchronization clock, and the GPS module provides a synchronization clock for the collection unit, the collection unit and the host module through the second pulse of its GPS synchronization clock.

[0014] Furthermore, in some embodiments of the present application, the host module includes a data preprocessing unit for filtering and amplifying the collected stroke waveform data.

[0015] Furthermore, in some embodiments of the present application, the host module also includes a fault diagnosis unit for monitoring the state of the target sensor in real time, and automatically switching to a backup sensor when an abnormality is detected in the state of the target sensor.

[0016] Furthermore, in some embodiments of the present application, the host module also includes a user interaction interface for configuring detection parameters and displaying detection results.

[0017] Furthermore, in some embodiments of the present application, the host module also includes a data storage unit for storing historical detection data and generating a detection log based on the historical detection data.

[0018] Furthermore, in some embodiments of the present application, the device also includes an indication module, the indication module includes at least one collection status indicator light and at least one collective copy status indicator light, the collection status indicator light is used to indicate the status of the collection unit through a light-emitting diode, the collection status indicator light includes a power indicator light, an undervoltage indicator light, a communication indicator light and a GPS second pulse indicator light; the collective copy status indicator light is used to indicate the status of the collective copy unit through a light-emitting diode, the collective copy status indicator light includes a power indicator light, an undervoltage indicator light, a communication indicator light, an online indicator light and a GPS second pulse indicator light.

[0019] Correspondingly, the present application also provides a circuit breaker speed detection device based on GPS second pulse vector signal, including the circuit breaker speed detection device based on GPS second pulse vector signal as described above.

[0020] Implementing the embodiments of the present application has the following beneficial effects:

[0021] In summary, the present application provides a circuit breaker detection speed device and equipment based on GPS second pulse vector signal, the circuit breaker detection speed device based on GPS second pulse vector signal includes a host module, a collection module, a GPS synchronization module and a wireless transceiver module; wherein the collection module includes at least one collection unit and at least three collection units, the collection unit is used to select a target sensor according to the configuration of the collection unit, so as to collect the travel data of the target circuit breaker through the target sensor, and then transmit the travel data to the collection unit through the wireless transceiver module, the collection unit is used to receive the travel data transmitted by the collection unit through the wireless transceiver module, and transmit the travel data to the host module; the GPS synchronization module is used to provide a synchronous clock signal for the host module and the collection module; the wireless transceiver module is used to provide a wireless data transmission function between the collection unit and the collection unit; the host module is used to receive the travel data transmitted by the collection module, and calculate the speed value of each phase of the target circuit breaker according to the travel data. The present application provides a circuit breaker detection speed device and equipment based on GPS second pulse vector signal. By introducing GPS second pulse vector signal, high-precision signal synchronization is achieved, the anti-interference performance of data transmission is improved, and the equipment maintenance cost is reduced. The problems of poor anti-interference performance, difficult signal synchronization calibration and high equipment maintenance cost existing in the prior art are solved, thereby providing a more reliable and efficient circuit breaker performance detection solution for the power system to ensure the safe and stable operation of the power grid. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The drawings herein are incorporated into the specification and constitute a part of the specification, illustrate embodiments consistent with the present application, and together with the specification are used to explain the principles of the present application. In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the description of the embodiments are briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor.

[0023] Figure 1 It is a structural schematic diagram of a circuit breaker speed detection device based on GPS second pulse vector signal provided in an embodiment of the present application;

[0024] Figure 2 It is another structural schematic diagram of a circuit breaker speed detection device based on GPS second pulse vector signal provided in an embodiment of the present application;

[0025] Figure 3 It is a circuit principle schematic diagram of the interface circuit between the GPS clock module and the acquisition unit provided in the embodiment of the present application;

[0026] Figure 4 It is a schematic diagram of the circuit principle of the communication circuit between the processor and the GPS clock module provided in the embodiment of the present application;

[0027] Figure 5 This is a schematic diagram of the circuit principle of a signal acquisition channel of the analog-to-digital conversion chip provided in an embodiment of the present application;

[0028] Figure 6 It is a schematic diagram of the circuit principle of another signal collection channel of the analog-to-digital conversion chip provided in an embodiment of the present application;

[0029] Figure 7 It is a circuit principle schematic diagram of the connection circuit between the digital stroke sensor and the microprocessor provided in the embodiment of the present application.

[0030] The realization of the purpose, functional features and advantages of this application will be further described in conjunction with the embodiments and with reference to the accompanying drawings. The above-mentioned drawings have shown clear embodiments of this application, which will be described in more detail later. These drawings and textual descriptions are not intended to limit the scope of the concept of this application in any way, but to illustrate the concept of this application to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0031] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the following exemplary embodiments do not represent all implementations consistent with the present application. Instead, they are merely examples of devices and methods consistent with some aspects of the present application as detailed in the appended claims.

[0032] It should be noted that, in this article, the terms "include", "comprises" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "includes a ..." does not exclude the existence of other identical elements in the process, method, article or device including the element. In addition, components, features, and elements with the same name in different embodiments of the present application may have the same meaning or different meanings, and their specific meanings need to be determined by their explanation in the specific embodiment or further combined with the context of the specific embodiment.

[0033] It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0034] In the subsequent description, the suffixes such as "module", "component" or "unit" used to represent elements are only used to facilitate the description of the present application, and have no specific meanings. Therefore, "module", "component" or "unit" can be used in a mixed manner.

[0035] Circuit breakers are important electrical equipment in power systems, and their performance is directly related to the safe and stable operation of the power grid. Performance testing of circuit breakers is mainly carried out through regular inspections and pre-tests, among which key parameters such as opening and closing speeds and travel curves are important parameters reflecting the performance of circuit breakers. The detection method is to use a circuit breaker characteristic analyzer to detect them.

[0036] At present, the circuit breaker characteristic analyzer uses wired transmission to transmit analog signal information with the speed sensor, which has the following disadvantages:

[0037] (1) The detection sites are all in strong electric field environments, and the shielding effect of wired transmission is limited. In particular, wired transmission of analog signals is easily interfered by external strong electric field factors, resulting in information distortion and inaccurate test results. There is an error with the true value, which is easy to cause misjudgment;

[0038] (2) The current transmission method cannot perform signal time synchronization calibration. Affected by the impedance of the signal transmission line and the transmission distance, it is very easy to cause data asynchrony, resulting in deviations in the detection results.

[0039] (3) Frequent inspections can easily lead to aging, breakage, and damage of signal transmission lines, which not only affects work progress but also increases equipment maintenance costs.

[0040] In response to the above problems, this application proposes a circuit breaker detection speed device and equipment based on GPS second pulse vector signal, which solves the problems of poor anti-interference performance, difficult signal synchronization calibration and high equipment maintenance cost in the prior art, effectively improves the accuracy and efficiency of circuit breaker performance detection, reduces maintenance costs, and thus ensures the safe and stable operation of the power grid.

[0041] See also Figure 1 , Figure 1 1 is a schematic diagram of the structure of a circuit breaker speed detection device based on GPS second pulse vector signal provided in an embodiment of the present application. A circuit breaker speed detection device based on GPS second pulse vector signal provided in this embodiment may specifically include a host module 10, a collection module 20, a GPS synchronization module 30 and a wireless transceiver module 40;

[0042] The host module 10 is used to receive the travel data transmitted by the acquisition module and calculate the speed value of each phase of the target circuit breaker according to the travel data;

[0043] Specifically, the host module 10, as the control center of the entire device, is responsible for receiving the travel data from the acquisition module, and performing processing and calculation, so as to calculate the speed value of each phase of the target circuit breaker according to the travel data.

[0044] The collection module 20 includes at least one centralized collection unit and at least three collection units. The collection unit is used to select a target sensor according to the configuration of the centralized collection unit, so as to collect the travel data of the target circuit breaker through the target sensor, and then transmit the travel data to the centralized collection unit through the wireless transceiver module 40. The centralized collection unit is used to receive the travel data transmitted by the collection unit through the wireless transceiver module 40, and transmit the travel data to the host module 10;

[0045] Specifically, the acquisition module 20 includes at least one collection unit and at least three collection units, which are responsible for directly interfacing with the sensor of the circuit breaker to collect the travel data of the circuit breaker. The collection unit selects the target sensor according to the configuration of the collection unit, collects the travel data of the target circuit breaker through the target sensor, and transmits the travel data to the collection unit through the wireless transceiver module. The collection unit receives the travel data transmitted by the collection unit and transmits the data to the host module.

[0046] The GPS synchronization module 30 is used to provide a synchronization clock signal for the host module 10 and the acquisition module 20;

[0047] Specifically, the GPS synchronization module 30 provides a high-precision time synchronization signal to ensure data synchronization between the host module and the acquisition module.

[0048] The wireless transceiver module 40 is used to provide a wireless data transmission function between the collection unit and the collection unit;

[0049] Specifically, the wireless transceiver module 40 implements wireless data transmission between the collection unit and the collection unit, thereby improving the flexibility and anti-interference capability of data transmission.

[0050] It can be seen that the second pulse signal provided by the GPS synchronization module in this embodiment can achieve nanosecond level time synchronization, ensuring accurate data collection and processing; the use of the wireless transceiver module eliminates the limitations of wired connections, improves the flexibility and anti-interference ability of the device, and also reduces the maintenance cost caused by cable damage; through the setting of at least three collection units, the travel data of the three-phase circuit breaker can be collected simultaneously, improving the efficiency and accuracy of detection.

[0051] Furthermore, in some embodiments, each acquisition unit includes a wireless transceiver module, an analog-to-digital conversion module, an analog stroke sensor and a digital stroke sensor. The analog stroke sensor and digital stroke sensor corresponding to each acquisition unit are installed on the closing and opening motion mechanism of each phase of the target circuit breaker, and are used to collect the stroke waveforms corresponding to the opening and closing of each phase of the target circuit breaker. The analog-to-digital conversion module is used to convert the acquisition signal of the analog stroke sensor into a corresponding digital signal. The wireless transceiver module is used to transmit the stroke waveforms corresponding to the opening and closing of each phase of the target circuit breaker collected by the acquisition unit to the collection unit, and is used to receive the acquisition instructions and configuration information issued by the collection unit.

[0052] Specifically, each acquisition unit includes a wireless transceiver module, an analog-to-digital conversion module, an analog stroke sensor, and a digital stroke sensor. Among them, the wireless transceiver module is responsible for wireless data transmission between the acquisition unit and the collection unit, ensuring that the data can be accurately and quickly transmitted without physical connection. The analog-to-digital conversion module converts the analog signal collected by the analog stroke sensor into a digital signal so that the host module can perform further processing and analysis. The analog stroke sensor is installed on the closing and opening motion mechanism of each phase of the circuit breaker to collect the stroke waveform during the closing and opening process of the circuit breaker. The digital stroke sensor is also installed on the closing and opening motion mechanism of each phase of the circuit breaker to provide an orthogonal encoding signal for accurately measuring the stroke of the circuit breaker. For example, the analog stroke sensor and the digital stroke sensor corresponding to each acquisition unit are installed on the closing and opening motion mechanism of each phase of the target circuit breaker to collect the stroke waveform corresponding to the closing and opening of each phase of the target circuit breaker. The analog-to-digital conversion module converts the acquisition signal of the analog stroke sensor into a digital signal, and the wireless transceiver module transmits the collected stroke waveform to the collection unit, and receives the acquisition instructions and configuration information issued by the collection unit.

[0053] In addition, this embodiment can also use analog stroke sensors and digital stroke sensors at the same time, so that the device can capture the motion characteristics of the circuit breaker from different angles, thereby improving the integrity and reliability of the data; the orthogonal encoding signal provided by the digital stroke sensor can be used to accurately measure the stroke of the circuit breaker, which is essential to ensure the correct operation and performance evaluation of the circuit breaker; the design of the wireless transceiver module takes into account the anti-interference ability in a strong electric field environment, ensuring the stability and accuracy of data transmission even in harsh industrial environments; the acquisition unit can select the target sensor according to the configuration of the collection unit, and this flexibility enables the device to adapt to different detection needs and environments.

[0054] In this embodiment, the device can provide more accurate travel data through the analog-to-digital conversion module and the high-precision digital travel sensor, thereby improving the accuracy of circuit breaker speed detection; the design of the wireless transceiver module reduces the interference caused by the wired connection, making the data transmission more stable and improving the anti-interference ability of the system in a strong electric field environment; the acquisition unit can receive the acquisition instructions and configuration information issued by the collection unit, so that the operator can remotely configure and control the acquisition process, thereby improving the convenience of operation; the design of the acquisition unit enables it to select suitable sensors according to different detection requirements, thereby enhancing the adaptability of the system to different detection environments.

[0055] Furthermore, in some embodiments, the collection unit includes a wireless transceiver module and a GPS synchronization module. The wireless transmission module is used to receive the travel waveforms corresponding to the opening and closing of each phase of the target circuit breaker transmitted by the collection unit and transmit them to the host module, and is used to send collection instructions and configuration information to each collection unit.

[0056] Specifically, the data collection unit in this embodiment includes a wireless transceiver module and a GPS synchronization module. The wireless transceiver module is used to receive the travel waveform corresponding to the opening and closing of each phase of the target circuit breaker transmitted by the collection unit, and transmit it to the host module. At the same time, the module is also responsible for issuing collection instructions and configuration information to each collection unit. The GPS synchronization module provides a high-precision time synchronization signal to ensure data synchronization between the collection unit, the data collection unit and the host module, thereby achieving accurate data collection and processing.

[0057] The second pulse signal provided by the GPS synchronization module in this embodiment can achieve nanosecond-level time synchronization, which is essential for ensuring accurate data collection and processing, especially in power system monitoring that requires high-precision time stamps. The wireless transceiver module design of the meter reading unit takes into account the anti-interference ability in a strong electric field environment, ensuring that the stability and accuracy of data transmission can be maintained even in harsh industrial environments.

[0058] In this embodiment, the device can achieve high-precision time synchronization through the GPS synchronization module, which is crucial to ensuring accurate data collection and processing, especially in power system monitoring that requires high-precision timestamps; the design of the wireless transceiver module reduces the interference caused by wired connections, making data transmission more stable and improving the system's anti-interference ability in strong electric field environments; the meter reading unit can send collection instructions and configuration information to each collection unit, so that the operator can remotely configure and control the collection process, improving the convenience of operation; the design of the meter reading unit enables it to adapt to different detection needs and environments, and through centralized management of the collection units, the system's adaptability to different detection environments is enhanced; the meter reading unit serves as a data integration point, which simplifies the system architecture, improves data processing efficiency, and enables data to be quickly and accurately transmitted to the host module for further processing.

[0059] Furthermore, in some embodiments, the GPS module includes a GPS synchronization clock, and the GPS module provides a synchronization clock for the collection unit, the collection unit and the host module through the second pulse of its GPS synchronization clock.

[0060] Specifically, the GPS module in this embodiment includes a GPS synchronization clock, which is a key component in the device and is responsible for providing an accurate time reference. The GPS synchronization clock can receive signals from the global positioning system (GPS) and generate a high-precision second pulse signal for synchronizing the operation of the entire device. The second pulse signal is a periodic signal that usually generates a pulse per second to mark the passage of time. In this device, the second pulse signal is used to ensure the time consistency of all modules, which is crucial for accurately measuring the travel and speed of the circuit breaker. Through the second pulse signal provided by the GPS module, the acquisition unit can start collecting the travel data of the circuit breaker at a precise time point, the collection unit can synchronously receive this data, and the host module can synchronously process this data, thereby ensuring the accuracy and consistency of the entire measurement process.

[0061] The second pulse signal provided by the GPS module in this embodiment can achieve nanosecond-level time synchronization, which is crucial for application scenarios that require high-precision timestamps (such as synchronous measurement of power systems). Due to the widespread use of GPS signals and their stability in various environments, the use of GPS synchronized clocks can improve the anti-interference ability of the device in strong electromagnetic interference environments.

[0062] In this embodiment, by using a GPS synchronized clock, the device can achieve higher-precision measurements, which is helpful for performance evaluation and fault diagnosis of circuit breakers; the GPS synchronized clock ensures data synchronization between the acquisition unit, the collection unit and the host module, avoiding data errors caused by time asynchrony; accurate time synchronization reduces system errors caused by clock deviations and improves the stability of the entire system; due to the high stability and reliability of the GPS synchronized clock, maintenance work caused by clock synchronization problems is reduced, thereby reducing maintenance costs; the use of the GPS synchronized clock enables the device to adapt to various environmental conditions, including strong electromagnetic interference environments, thereby improving the adaptability and flexibility of the system.

[0063] Furthermore, in some embodiments, the host module includes a data preprocessing unit for filtering and amplifying the collected stroke waveform data.

[0064] Specifically, the host module in this embodiment includes a data preprocessing unit, which is an important component of the host module and is responsible for performing preliminary processing on the original stroke waveform data received from the acquisition unit to improve the quality of the data. For example, filtering and amplification processing are performed, wherein filtering is a key step in the preprocessing process, which is used to remove noise and unnecessary frequency components in the data, ensuring that only signals related to the circuit breaker stroke are retained, and can reduce the complexity of subsequent data processing because there is no need to process irrelevant noise and interference signals. Since the collected signal may be very weak, amplification processing can increase the amplitude of the signal, making it more suitable for subsequent analysis and processing.

[0065] The filtering and amplification processing of the data preprocessing unit provided in this embodiment improves the accuracy of the measurement data, which is very important for the performance evaluation and fault diagnosis of the circuit breaker; by removing noise and interference, the data preprocessing unit improves the reliability of the data and reduces the misjudgment caused by data quality problems; accurate data preprocessing reduces system errors caused by data quality problems and improves the stability of the entire system; because the data preprocessing unit improves the quality of the data, the maintenance work caused by data problems is reduced, thereby reducing the maintenance cost; the data preprocessing unit enables the device to adapt to different signal conditions, including providing accurate measurement results in environments with weak signals or more noise.

[0066] Furthermore, in some embodiments, the host module also includes a fault diagnosis unit for monitoring the state of the target sensor in real time, and automatically switching to a backup sensor when an abnormality is detected in the state of the target sensor.

[0067] Specifically, the host module in this embodiment also includes a fault diagnosis unit, which is responsible for continuously monitoring the status and performance of the sensor connected to the device. The fault diagnosis unit can monitor the working status of the sensor in real time, including but not limited to the stability of the signal, the response time of the sensor, and the accuracy of the data. When the working status of the sensor deviates from the normal range, such as signal loss, data abnormality or response delay, the fault diagnosis unit can identify these abnormal conditions. Once an abnormality is detected in the main sensor, the fault diagnosis unit can automatically switch to the backup sensor to ensure the continuity and reliability of data acquisition. Through real-time monitoring and automatic switching to the backup sensor, the device can continue to operate when the main sensor fails, thereby improving the robustness of the system. The automatic switching mechanism reduces the system downtime caused by sensor failure and improves the availability and work efficiency of the device. The fault diagnosis unit ensures the continuity of data acquisition and maintains the stability of the data stream even when the main sensor fails. In addition, the fault diagnosis unit can quickly identify the faulty sensor, providing a basis for rapid response and maintenance for maintenance personnel, thereby improving maintenance efficiency.

[0068] The fault diagnosis unit and automatic switching mechanism provided in this embodiment significantly improve the reliability of the system, ensuring that the speed of the circuit breaker can be continuously monitored even in the event of a sensor failure; by real-time monitoring of the sensor status, the system can promptly detect and respond to potential faults, thereby improving the safety of the power system; the fault diagnosis unit provides fault diagnosis information, allowing maintenance personnel to quickly locate problems and perform repairs, reducing the maintenance cost and time of the system; when an abnormality occurs in the main sensor, automatic switching to the backup sensor ensures that the accuracy of the data is not affected, providing reliable data support for the performance analysis of the circuit breaker.

[0069] Furthermore, in some embodiments, the host module also includes a user interaction interface for configuring detection parameters and displaying detection results.

[0070] Specifically, the host module in this embodiment also includes a user interaction interface, which provides an intuitive operating platform for the user to interact with the device. The user can set and adjust various parameters in the detection process, such as sampling rate, data acquisition time, sensor selection, etc., through the user interaction interface to adapt to different detection requirements and conditions. The interface can display the results of the circuit breaker speed detection in real time, including the travel waveform, speed value, and other related performance parameters, so that the user can intuitively understand the operating status of the circuit breaker.

[0071] In a specific embodiment, the user interaction interface provides an intuitive operation interface, so that the operator can easily configure the detection parameters and view the detection results, thereby improving the convenience of operation; the friendliness of the interface directly affects the user's experience, and a well-designed user interaction interface can improve user satisfaction; the user interaction interface can provide graphical data display, such as travel waveform graphs, speed curve graphs, etc., making complex data information easier to understand and analyze; the user interaction interface may support remote access function, so that the user can monitor and control the detection process of the circuit breaker away from the detection site; the interface can integrate a fault alarm system, and when abnormal data or sensor failure is detected, the user can be notified in time so that corresponding measures can be taken.

[0072] It can be seen that the user interaction interface provided in this embodiment makes parameter configuration and result viewing more intuitive and quick, thereby improving operational efficiency; through the user interaction interface, users can flexibly configure detection parameters according to actual needs, thereby enhancing the adaptability and flexibility of the system; the data visualization display on the interface makes complex detection data easier to understand and analyze, thereby improving the readability of the data; when the system detects an abnormality, the user interaction interface can quickly issue an alarm to the user, thereby improving the response speed of the system; the intuitive user interaction interface reduces the possibility of operational errors and reduces the system failure rate caused by improper operation.

[0073] Furthermore, in some embodiments, the host module also includes a data storage unit for storing historical detection data and generating a detection log based on the historical detection data.

[0074] Specifically, the host module in this embodiment also includes a data storage unit, which is the part of the host module responsible for the storage function and is used to store the travel data received from the acquisition unit and the processed results. The data storage unit can store the historical data of the circuit breaker speed detection for a long time, including key information such as travel waveform, speed value, timestamp, etc. Based on the stored historical detection data, the data storage unit can generate detailed detection logs, which record the details of each detection, including the detection time, detection results and any abnormal events.

[0075] In a specific embodiment, the data storage unit makes the detection data traceable, which is convenient for tracing back and analyzing historical data when needed, which is very important for fault analysis and performance evaluation. The stored data can be protected by encryption or other security measures to ensure that the data is not accessed or tampered with by unauthorized persons. The data storage unit can support regular backup of data and data recovery in the event of system failure to ensure data integrity and availability. And the stored historical data can be used for further data analysis and mining to discover potential patterns or trends and optimize the performance and maintenance plan of the circuit breaker. In addition, the data storage unit may support remote data access function, so that users can access and analyze stored data from different locations.

[0076] The data storage unit provided in this embodiment makes the management of historical detection data more efficient and facilitates data retrieval and analysis; by analyzing historical data, support can be provided for maintenance decisions, such as predictive maintenance and performance optimization; the data backup and recovery functions improve the reliability of the system and reduce the risk of data loss; the data storage unit protects data through security measures to prevent data leakage and unauthorized access; the automatic generation of detection logs reduces the workload of manual recording and improves the efficiency of maintenance work.

[0077] Furthermore, in some embodiments, the device also includes an indication module, the indication module includes at least one collection status indicator light and at least one collective copy status indicator light, the collection status indicator light is used to indicate the status of the collection unit through a light-emitting diode, the collection status indicator light includes a power indicator light, an undervoltage indicator light, a communication indicator light and a GPS second pulse indicator light; the collective copy status indicator light is used to indicate the status of the collective copy unit through a light-emitting diode, the collective copy status indicator light includes a power indicator light, an undervoltage indicator light, a communication indicator light, an online indicator light and a GPS second pulse indicator light.

[0078] Specifically, the circuit breaker speed detection device based on GPS second pulse vector signal of this embodiment also includes an indication module, which is a part of the device for providing instant status feedback and indicating the operating status of each unit through visual signals. The indication module includes at least one acquisition status indicator and at least one collection status indicator.

[0079] Among them, the collection status indicator light is installed on the collection unit to indicate the current status of the collection unit, including: a power indicator light, which shows whether the collection unit is powered on; an undervoltage indicator light, which indicates whether the power supply voltage is lower than the normal working level; a communication indicator light, which shows the communication status between the collection unit and the collection unit; and a GPS second pulse indicator light, which indicates whether the collection unit has successfully received the GPS synchronization signal.

[0080] The meter reading status indicator light is installed on the meter reading unit to indicate the current status of the meter reading unit, including: a power indicator light, which shows whether the meter reading unit is powered on; an undervoltage indicator light, which indicates whether the power supply voltage is lower than the normal working level; a communication indicator light, which shows the communication status between the meter reading unit and the acquisition unit and the host module; an online indicator light, which indicates whether the meter reading unit is connected to the host module; and a GPS second pulse indicator light, which indicates whether the meter reading unit has successfully received the GPS synchronization signal.

[0081] The indication module provided in this embodiment provides intuitive status feedback, so that on-site operators can quickly evaluate the operating status of the equipment and respond to possible problems in a timely manner; through the status indicator light, the fault status of the equipment, such as power problems, communication failures, etc., can be quickly identified, thereby accelerating the fault diagnosis and repair process and improving the efficiency of fault diagnosis; the intuitive indicator light design improves the friendliness of user-device interaction and makes operation more intuitive and convenient; the status indicator light can help maintenance personnel quickly locate problems and reduce maintenance time and costs; by timely indicating the power and communication status, the indication module helps prevent safety accidents caused by power problems or communication failures.

[0082] In order to facilitate the understanding of the technical solution, this embodiment also provides a specific implementation of a circuit breaker speed detection device based on GPS second pulse vector signal, such as Figure 2 As shown, the device includes a switch tester host, a collection unit and three acquisition units, as well as an analog travel sensor, a digital travel sensor, a GPS synchronization module, a wireless transceiver module, and an analog-to-digital conversion module. The acquisition unit selects whether the sensor used in this measurement is an analog sensor or a digital sensor according to the configuration sent by the collection unit. The sensor is installed on the switch's closing and opening motion mechanism. The three acquisition units collect the three-phase closing and opening travel waveforms respectively, and transmit them to the collection unit through the wireless transceiver module. The collection unit transmits the collected travel data to the host through the RS485 bus, and the host calculates the speed value of each phase of the switch.

[0083] In the specific implementation process, the synchronization clock collected by the three collection units and the host is provided by the second pulse of the GPS module. When the host notifies the collection unit to prepare for data collection, the collection unit sends a group message to the three collection units through the wireless module to prepare for data collection. After that, when the collection unit receives the falling edge of the second pulse signal of the GPS module, it immediately starts collecting. Then the collection unit reads the data of the collection unit phase by phase and waits for the data uplink command from the host.

[0084] Among them, Figure 3 As shown, Figure 3 The interface circuit between the GPS clock module and the microprocessor STM32F429 in the acquisition unit is provided. Figure 4As shown in the figure, the processor uses the MAX3232 chip to realize serial communication with the GPS module, and the GPS pulse parameters can be set through the serial port. The GPS pulse output signal PPS is transmitted to the processor's PC8 port line through the 16th pin of the chip U4. The acquisition unit communicates with the wireless transceiver module through the serial port. The circuit is shown in the figure. Figure 4 As shown in the figure, the wireless transceiver module is connected to the acquisition board through the connector J3, and then to the PC12 and PD2 pins of the microprocessor's serial port 5 through the chip U4. The acquisition unit is a slave relative to the collection unit. The acquisition unit is usually in the receiving command state. Once it receives the command from the collection unit, it will immediately process it, respond, and then enter the receiving state.

[0085] like Figure 5 and Figure 6 As shown, the analog-to-digital conversion chip in the analog-to-digital conversion module in this embodiment adopts AD7606, which collects two signals in total, one of which is the analog stroke sensor signal, such as Figure 5 As shown; one path is the lithium battery voltage signal, such as Figure 6 shown.

[0086] like Figure 7 As shown, the signal output by the digital travel sensor is an orthogonal encoded signal, and the sensor is connected to the PB6 and PB7 pins of capture 4 of the microprocessor.

[0087] Compared with the existing technology, this device has the advantages of high data transmission accuracy, strong anti-interference ability, long transmission distance, small and light device, and strong practicality.

[0088] In some embodiments, the present embodiment further provides a circuit breaker speed detection device based on GPS second pulse vector signal, including the circuit breaker speed detection device based on GPS second pulse vector signal as described above.

[0089] In summary, the present embodiment provides a circuit breaker detection speed device and equipment based on GPS second pulse vector signal, the circuit breaker detection speed device based on GPS second pulse vector signal includes a host module, a collection module, a GPS synchronization module and a wireless transceiver module; wherein the collection module includes at least one collection unit and at least three collection units, the collection unit is used to select a target sensor according to the configuration of the collection unit, so as to collect the travel data of the target circuit breaker through the target sensor, and then transmit the travel data to the collection unit through the wireless transceiver module, the collection unit is used to receive the travel data transmitted by the collection unit through the wireless transceiver module, and transmit the travel data to the host module; the GPS synchronization module is used to provide a synchronous clock signal for the host module and the collection module; the wireless transceiver module is used to provide a wireless data transmission function between the collection unit and the collection unit; the host module is used to receive the travel data transmitted by the collection module, and calculate the speed value of each phase of the target circuit breaker according to the travel data.

[0090] The present embodiment provides a circuit breaker detection speed device and equipment based on GPS second pulse vector signal. By introducing GPS second pulse vector signal, high-precision signal synchronization is achieved, the anti-interference performance of data transmission is improved, and the equipment maintenance cost is reduced. The problems of poor anti-interference performance, difficult signal synchronization calibration and high equipment maintenance cost existing in the prior art are solved, thereby providing a more reliable and efficient circuit breaker performance detection solution for the power system to ensure the safe and stable operation of the power grid.

[0091] That is, the above description is only an embodiment of the present application, and does not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the specification and drawings of the present application, such as the mutual combination of technical features between the embodiments, or direct or indirect application in other related technical fields, are also included in the patent protection scope of the present application.

[0092] In addition, for structural elements with the same or similar characteristics, the present application may use the same or different reference numerals for identification. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0093] In this application, the word "for example" is used to mean "used as an example, illustration or description". Any embodiment described as "for example" in this application is not necessarily interpreted as being more preferred or more advantageous than other embodiments. In order to enable any person skilled in the art to implement and use the present application, the present application provides the above description. In the above description, various details are listed for the purpose of explanation.

[0094] It should be understood that those skilled in the art will recognize that the present application can be implemented without using these specific details. In other embodiments, well-known structures and processes will not be elaborated in detail to avoid unnecessary details that make the description of the present application obscure. Therefore, the present application is not intended to be limited to the embodiments shown, but is consistent with the widest range of principles and features disclosed in the present application.

Claims

1. A circuit breaker speed detection device based on GPS second pulse vector signal, characterized in that: It includes host module, acquisition module, GPS synchronization module and wireless transceiver module; The collection module includes at least one centralized collection unit and at least three collection units. The collection unit is used to select a target sensor according to the configuration of the centralized collection unit, so as to collect the travel data of the target circuit breaker through the target sensor, and then transmit the travel data to the centralized collection unit through the wireless transceiver module. The centralized collection unit is used to receive the travel data transmitted by the collection unit through the wireless transceiver module, and transmit the travel data to the host module; The GPS synchronization module is used to provide a synchronization clock signal for the host module and the acquisition module; The wireless transceiver module is used to provide a wireless data transmission function between the collection unit and the collection unit; The host module is used to receive the travel data transmitted by the acquisition module, and calculate the speed value of each phase of the target circuit breaker according to the travel data.

2. The circuit breaker speed detection device based on GPS second pulse vector signal according to claim 1 is characterized in that: Each of the acquisition units includes a wireless transceiver module, an analog-to-digital conversion module, an analog stroke sensor and a digital stroke sensor. The analog stroke sensor and the digital stroke sensor corresponding to each of the acquisition units are installed on the closing and opening motion mechanisms of each phase of the target circuit breaker, and are used to acquire the stroke waveforms corresponding to the opening and closing of each phase of the target circuit breaker. The analog-to-digital conversion module is used to convert the acquisition signal of the analog stroke sensor into a corresponding digital signal. The wireless transceiver module is used to transmit the stroke waveforms corresponding to the opening and closing of each phase of the target circuit breaker acquired by the acquisition unit to the centralized copy unit, and is used to receive the acquisition instructions and configuration information issued by the centralized copy unit.

3. The circuit breaker speed detection device based on GPS second pulse vector signal according to claim 1 is characterized in that: The centralized meter reading unit includes a wireless transceiver module and a GPS synchronization module. The wireless transmission module is used to receive the travel waveform corresponding to the opening and closing of each phase of the target circuit breaker transmitted by the collection unit and transmit it to the host module, and is used to send the collection instruction and the configuration information to each of the collection units.

4. The circuit breaker speed detection device based on GPS second pulse vector signal according to claim 1 is characterized in that: The GPS module includes a GPS synchronization clock. The GPS module provides a synchronization clock for the collection unit, the collection unit and the host module through the second pulse of the GPS synchronization clock.

5. The circuit breaker speed detection device based on GPS second pulse vector signal according to claim 1, characterized in that: The host module includes a data preprocessing unit for filtering and amplifying the collected stroke waveform data.

6. The circuit breaker speed detection device based on GPS second pulse vector signal according to claim 1, characterized in that: The host module also includes a fault diagnosis unit for monitoring the state of the target sensor in real time and automatically switching to a backup sensor when an abnormality is detected in the state of the target sensor.

7. The circuit breaker speed detection device based on GPS second pulse vector signal according to claim 1, characterized in that: The host module also includes a user interaction interface for configuring detection parameters and displaying detection results.

8. The circuit breaker speed detection device based on GPS second pulse vector signal according to claim 1, characterized in that: The host module also includes a data storage unit for storing historical detection data and generating a detection log according to the historical detection data.

9. The circuit breaker speed detection device based on GPS second pulse vector signal according to claim 1, characterized in that: The device also includes an indication module, which includes at least one collection status indicator light and at least one centralized copy status indicator light. The collection status indicator light is used to indicate the status of the collection unit through a light-emitting diode, and the collection status indicator light includes a power indicator light, an undervoltage indicator light, a communication indicator light and a GPS second pulse indicator light; the centralized copy status indicator light is used to indicate the status of the centralized copy unit through a light-emitting diode, and the centralized copy status indicator light includes a power indicator light, an undervoltage indicator light, a communication indicator light, an online indicator light and a GPS second pulse indicator light.

10. A circuit breaker speed detection device based on GPS second pulse vector signal, characterized in that: It comprises a circuit breaker speed detection device based on GPS second pulse vector signal as described in any one of claims 1 to 9.

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