Secondary equipment debugging method, system and equipment, storage medium and product

Abstract

The invention discloses a secondary equipment debugging method, system and equipment, a storage medium and a product, and the system comprises at least one switching value switching board card which is used for controlling a switching value switching loop to work according to an interval switching control instruction, and testing secondary equipment in each test interval in sequence; a plurality of spaced secondary devices are connected with ports used for interacting switching value signals through at least two independent hard wiring cables to form a redundant hard wiring structure; a communication diagnosis module is arranged in the secondary equipment, and the communication diagnosis module monitors a switching value signal transmitted by the hard wiring cable in real time; and when the communication diagnosis module detects that the switching value signal transmitted by one hard wiring cable is abnormal, the other hard wiring cable is automatically switched to carry out signal transmission, and a fault alarm signal is sent out.

Description

Technical Field

[0001] The embodiments of the present invention relate to automation technology, and in particular to a secondary equipment debugging method, system, equipment, storage medium and product. Background Art

[0002] With the continuous development and improvement of the intelligent level of power systems, the debugging of secondary equipment has become more and more important and intelligent. In the factory debugging of secondary equipment, the debugging of the switching signal interaction circuits of all devices is a complex and time-consuming process.

[0003] The traditional debugging method mainly relies on manual operation, checking the short-circuit test points on the drawings and then checking the signal action status. When multiple line intervals need to be debugged at the same time, the workload is cumbersome and the work efficiency is low. Summary of the invention

[0004] The present invention provides a secondary equipment debugging method, system, equipment, storage medium and product to achieve the purpose of improving the efficiency of secondary equipment debugging.

[0005] In a first aspect, an embodiment of the present invention provides a secondary device debugging system, including:

[0006] At least one switch quantity switching board, the switch quantity switching board is used to control the switch quantity switching circuit to work according to the interval switching control instruction, and test the secondary equipment in each of the test intervals in turn;

[0007] Connecting ports for interactive switch quantity signals between multiple bays of secondary equipment via at least two independent hard-wired cables to form a redundant hard-wired structure;

[0008] A communication diagnostic module is provided in the secondary device, and the communication diagnostic module monitors the switch signal transmitted by the hard-wired cable in real time;

[0009] When the communication diagnosis module detects that the switch signal transmitted by one of the hard-wired cables is abnormal, it automatically switches to the other hard-wired cable for signal transmission and sends out a fault alarm signal.

[0010] Optionally, network communication based on industrial Ethernet is used to realize the switch quantity interaction between multiple interval secondary devices, wherein the network communication adopts an adaptive anti-interference protocol;

[0011] The secondary device includes an interference detection unit, which monitors the electromagnetic interference intensity in the network communication environment in real time;

[0012] When the interference detection unit detects that the electromagnetic interference intensity exceeds a preset threshold, the adaptive anti-interference protocol automatically adjusts the encoding method and transmission rate of the network communication to ensure reliable transmission of the switch signal.

[0013] Optionally, a switch quantity signal acquisition device is configured in each interval, and the switch quantity signal acquisition device is used to collect and process the switch quantity signal of the interval;

[0014] Each of the switch signal acquisition devices is connected via a high-speed communication bus, and the high-speed communication bus supports a peer-to-peer communication mode;

[0015] When a switching quantity signal acquisition device at one interval needs to exchange switching quantity signals with a switching quantity signal acquisition device at another interval, peer-to-peer communication is directly initiated through the high-speed communication bus.

[0016] Optionally, in the secondary equipment multi-interval switch quantity interactive system based on network communication, the transmitted switch quantity signal is encrypted;

[0017] An asymmetric encryption algorithm is used to generate an encryption key pair, wherein the public key is used to encrypt the switch signal, and the private key is used to decrypt the encrypted switch signal at the receiving end.

[0018] Optionally, the switch quantity interaction loop between the multiple interval secondary devices includes a proxy module, and the proxy module is located at the communication interface of each secondary device;

[0019] The proxy module monitors and analyzes the input and output timing of the switch signal of each secondary device;

[0020] According to the monitoring and analysis results, the proxy module automatically adjusts the transmission timing of the switch quantity signals of each secondary device, optimizes the timing coordination of the switch quantity interaction between multiple interval secondary devices, and reduces the interaction failure caused by timing problems.

[0021] In a second aspect, an embodiment of the present invention further provides a secondary device debugging method, generating an interval switching control instruction, controlling the switch quantity switching circuit to work according to the interval switching control instruction, and testing the secondary device in each of the test intervals in turn;

[0022] Monitoring the switch quantity signals transmitted by the hard-wired cables, and generating a hard-wired cable switching control signal and a fault alarm signal when detecting that the switch quantity signal transmitted by one of the hard-wired cables is abnormal;

[0023] The hard-wired cable switching signal is used for switching the hard-wired cable, and the fault alarm signal is used for indicating a fault in the hard-wired cable.

[0024] Optionally, the interval switching control instruction is generated based on a logic level truth table.

[0025] In a third aspect, an embodiment of the present invention further provides an electronic device, comprising at least one processor, and a memory communicatively connected to the at least one processor;

[0026] The memory stores a computer program executable by the at least one processor, and the computer program is executed by the at least one processor so that the at least one processor can execute any secondary device debugging method described in the embodiments of the present invention.

[0027] In a fourth aspect, an embodiment of the present invention further provides a computer-readable storage medium, wherein the computer-readable storage medium stores computer instructions, and the computer instructions are used to enable a processor to implement any secondary device debugging method recorded in the embodiment of the present invention when executed.

[0028] In a fifth aspect, an embodiment of the present invention further provides a computer program product, including a computer program, which, when executed by a processor, implements any secondary device debugging method recorded in an embodiment of the present invention.

[0029] Compared with the prior art, the beneficial effect of the present invention is that: the present invention proposes a secondary equipment debugging system, which uses multiple switch quantity switching boards to form a switch quantity test signal control array. The system can control 64 groups of switches at the same time and can complete a large number of debugging tasks in a shorter time. It can significantly improve the progress of debugging work and reduce the overall time cost of the project. Each switch quantity switching board can be controlled independently. By controlling multiple switch quantity boards, the ability to simultaneously control multiple groups of switch quantity matrix outputs can be achieved, so that the system can realize parallel processing of multiple debugging tasks. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 Schematic diagram of a switch quantity switching board in an embodiment;

[0031] Figure 2 is a schematic diagram of a switch quantity switching board in an embodiment;

[0032] Figure 3 Schematic diagram of the structure of an electronic device in an embodiment. DETAILED DESCRIPTION

[0033] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0034] Figure 1 Schematic diagram of a switch quantity switching board in an embodiment. Figure 2 This is the schematic diagram of the switch quantity switching board in the embodiment, refer to Figure 1 and Figure 2 The present invention proposes a secondary equipment debugging system, comprising:

[0035] At least one switch quantity switching board, the switch quantity switching board is used to control the switch quantity switching circuit to work according to the interval switching control instruction, and test the secondary equipment in each test interval in turn;

[0036] Connecting ports for interactive switch quantity signals between multiple bays of secondary equipment via at least two independent hard-wired cables to form a redundant hard-wired structure;

[0037] A communication diagnostic module is provided in the secondary equipment, and the communication diagnostic module monitors the switch signal transmitted by the hard-wired cable in real time;

[0038] When the communication diagnosis module detects that the switch signal transmitted by one of the hard-wired cables is abnormal, it automatically switches to the other hard-wired cable for signal transmission and sends out a fault alarm signal.

[0039] In this solution, the switch quantity switching board is used in conjunction with the backplane. Multiple switch quantity switching boards can be configured with one backplane, and each switch quantity switching board can be connected to the backplane through a 30-pin European standard connector.

[0040] In this solution, the input and output of the switch switching board are on the same board, with the input interface on the top and the output interface on the bottom. Each switch switching board is equipped with a 2*20PIN terminal block (including COM1 and COM2, a total of 8 switch ports) and a 2*5PIN terminal block;

[0041] Among them, based on 2*20PIN wiring terminals and 2*5PIN wiring terminals, a switch quantity switching board can be connected to multiple switch quantity switching nodes in a spaced test cable;

[0042] For example, Figure 1 and Figure 2 In the scheme shown, 8 switch quantity switching boards are configured, which can meet the test work of up to 8 test intervals at the same time, and provide up to 64 independently controllable node signals for the switch quantity interactive loop;

[0043] Based on 8 switch switching boards to control 64-way node signal output, and the switching devices between different switch switching boards can be controlled to switch groups, so as to meet the needs of multiple circuits being tested in sequence on site. There is no need to test each interval independently. The test cables of 8 intervals can be connected at one time. After each interval is verified, switch to the next interval.

[0044] Exemplarily, in this solution, a switch quantity switching board is configured to provide a control voltage to a relay through a 12V power supply, and the relay changes its contact state according to the control signal (CTL1-7), thereby realizing signal switching and transmission through the wiring terminals.

[0045] Combination Figure 1 and Figure 2 Each switch quantity switching board is configured to change the contact state of the relay configured therein according to the control signal (CTL1~7), so as to connect or disconnect the switch quantity switching board with the specified node. The switching signal control logic of each switch quantity switching board (0 represents low level, 1 represents high level, and x represents any state) can be shown in Table 1.

[0046] Table 1

[0047] Control Signal CTL7 CTL6 CTL5 CTL4 CTL3 CTL2 CTL1 Channel 1 X X X 0 X 0 0 Channel 2 X X X 1 X 0 0 Channel 3 X X 0 X X 1 0 Channel 4 X X 1 X X 1 0 Channel 5 X 0 X X 0 X 1 Channel 6 X 1 X X 0 X 1 Channel Group 7 0 X X X 1 X 1 Channel 8 1 X X X 1 X 1

[0048] Exemplarily, in this solution, each switch switching board can be switched in sequence, and a system can simultaneously meet the test work of 8 test intervals. The switch switching board can be fully automatically controlled by software or manually controlled to meet independent use or control by a fully automatic test system. Switching can be performed with power on, and switching can also be performed when there is voltage in the switch loop. The switch interaction process can independently control the closing and opening conditions, and can simultaneously control 64 groups of switch matrix outputs.

[0049] In this solution, the fully automatic software control can greatly improve the debugging efficiency. The system can automatically switch the switch quantity interactive circuit according to the preset program and process, without manual intervention, which greatly reduces the operation time. This efficiency is particularly obvious when facing large-scale secondary equipment debugging tasks, and can quickly complete the testing work of multiple test intervals;

[0050] Through precise software algorithms and logic control, the system can ensure the accuracy of switching. It avoids possible errors caused by manual operation, such as wrong switching, missed switching, etc. The software can monitor the switching status in real time, and can issue an alarm and take corresponding measures in time if an abnormal situation occurs, thus ensuring the reliability of the debugging results;

[0051] The fully automatic control of the software makes the debugging process highly repeatable. For the same type of secondary equipment debugging tasks, you only need to set the parameters, and the system can switch and test according to the same steps and processes, ensuring the consistency of the results.

[0052] Exemplarily, in this solution, manual control is necessary, and manual control enables the switching system to have the following characteristics:

[0053] Although software automatic control has many advantages, manual control is still necessary in some cases. For example, when encountering special situations or needing to make temporary adjustments during debugging, manual control can provide greater flexibility. Engineers can manually switch the switch quantity interactive loop according to the actual situation to meet specific debugging needs;

[0054] When the system fails or anomalies occur, manual control can help engineers troubleshoot. Through manual operation, each link can be checked one by one, the fault point can be determined and repaired. In addition, manual control can also be used for preliminary debugging and testing of the system to ensure the normal operation of the software automatic control;

[0055] In some small debugging tasks or special application scenarios, it may not be necessary to use a fully automatic test system. In this case, the manual control function allows the system to be used independently to meet the needs of different users. For example, during on-site maintenance or temporary debugging, manual control can easily and quickly switch the switch quantity interactive circuit;

[0056] To meet different usage requirements and improve applicability, the system can not only meet large-scale, standardized debugging tasks through software full-automatic control, but also adapt to special situations and independent usage scenarios through manual control, which greatly improves the applicability of the system. Whether in a factory debugging environment or in on-site maintenance and temporary debugging, it can play an important role;

[0057] The combination of manual control and fully automatic control provides a double guarantee for the reliability of the system. When the software fails or an abnormal situation occurs, manual control can be used as a backup plan to ensure the continuation of debugging work. At the same time, manual control can also be used to verify and calibrate the fully automatic control of the software to improve the overall reliability of the system.

[0058] Exemplarily, in this solution, the switching process can be switched with power on, and the switching quantity circuit can also be switched with voltage on. The switching of the switch quantity interactive circuit with power on improves the debugging efficiency;

[0059] In the actual secondary equipment debugging process, it is sometimes necessary to switch the switch quantity interactive circuit when the system is energized. If the system cannot achieve live switching, it is necessary to shut down the power first to operate, which will greatly reduce the debugging efficiency and prolong the debugging time. The automatic switching system with live switching function can be debugged without affecting the normal operation of the system, which greatly improves the work efficiency;

[0060] During the live switching process, it is necessary to ensure the accuracy and reliability of the switching, which places high demands on the hardware and software of the switching system. In terms of hardware, high-quality electronic components and reliable switching devices are required to withstand the impact of the switching process; in terms of software, precise control algorithms and stable communication systems are required to ensure the accurate execution of switching instructions. The system first performs logical judgment before switching to meet the switching conditions, and then reads the status after switching to meet the switching requirements, and then lights up the indicator light of the corresponding switching circuit;

[0061] In the factory commissioning of secondary equipment, it is often necessary to test a large number of devices and switch quantity loops. The 64 sets of switch quantity matrix outputs can provide rich switch quantity signals for multiple devices at the same time to meet the needs of large-scale commissioning tasks. Whether it is debugging a complex substation secondary equipment system or debugging a large-scale distributed energy access device, it can provide sufficient signal resources. With 64 sets of switch quantity matrix outputs, multiple devices or loops can be tested in parallel at the same time. This greatly reduces the commissioning time and improves the commissioning efficiency. Test engineers can complete more test tasks in a shorter time and speed up the project progress. The 64 sets of switch quantity matrix outputs can be flexibly configured according to different commissioning requirements. The output state of each set of switch quantity can be controlled separately, or multiple sets of switch quantities can be combined to realize specific test scenarios. This flexibility enables the system to adapt to various types of secondary equipment commissioning tasks and improves the adaptability of the system.

[0062] To achieve precise control of 64 switching values, highly reliable control circuits and algorithms are required. The output state of each switching value must be switched accurately according to the preset test process, which places high demands on the stability and accuracy of the control circuit. At the same time, it is also necessary to consider issues such as transmission delay and interference of the control signal to ensure that the switching timing of the switching value is accurate.

[0063] In the actual debugging environment, there may be various interference sources, such as electromagnetic interference, power supply fluctuations, etc. In order to ensure the accuracy and reliability of the 64-group switch matrix output, effective signal isolation and anti-interference measures need to be taken. This includes the use of high-quality isolation devices, reasonable wiring design, and the use of anti-interference technology.

[0064] Since a large number of switch outputs are involved, the reliability and stability of the system are crucial. Any failure of a switch may affect the entire debugging process. Therefore, it is necessary to use high-reliability hardware components and design a complete fault detection and recovery mechanism to ensure that the system always maintains stable operation during the long debugging process.

[0065] For example, in this solution, a high-performance microcontroller or FPGA or other control chip is used to achieve accurate control of 64 sets of switch quantities. These chips have high-speed computing capabilities and rich I / O interfaces, which can meet complex control requirements.

[0066] Exemplarily, in this solution, high-speed and stable communication technology is used between the controller and the switch switching board to ensure fast transmission and response of debugging instructions. For example, high-speed communication technologies such as Ethernet and optical fiber communication can be used to increase the bandwidth and speed of communication and reduce communication delays;

[0067] Establish reliable communication protocols and data formats to ensure the accuracy and reliability of communication. Communication protocols such as checksum and retransmission mechanisms can be used to ensure the accurate transmission of debugging instructions and data and prevent data loss and errors.

[0068] Exemplarily, in this solution, at least two independent hard-wired cables are used to connect ports for interactive switch signals between secondary devices in multiple (line) bays. This design forms a redundant hard-wired structure;

[0069] For example, in a substation, secondary equipment (such as protection devices, measurement and control devices, etc.) in different bays (such as different line bays, bus bays, etc.) need to exchange switch quantity information such as the opening and closing status of circuit breakers and the position of disconnectors. The redundancy of the signal transmission path is ensured by connecting two or more independent cables;

[0070] Based on the above design, even if one of the cables fails, such as being damaged by external force, aging, etc., there are still other cables to ensure the normal transmission of the switch signal, and the switch interaction will not fail due to the failure of a single cable, thereby ensuring the accuracy of the entire secondary system's equipment status monitoring.

[0071] Exemplarily, in this solution, a communication diagnostic module is provided, and a communication diagnostic module is provided inside each secondary device. These modules can monitor the switch signal transmitted by the hard-wired cable in real time.

[0072] The communication diagnosis module may determine whether the signal is normal by detecting and analyzing the signal level, frequency, pulse width and other characteristics. For example, the switch signal indicating the opening and closing state of the circuit breaker should be a stable high level or low level under normal circumstances. If there is an unstable fluctuation or abnormal level, it may indicate that there is a problem with the signal.

[0073] Exemplarily, in this solution, the communication diagnostic module can promptly detect signal anomalies that may occur during cable transmission, such as signal attenuation, signal distortion caused by interference, etc. At the same time, it can assist operation and maintenance personnel to locate which cable the fault occurred on to a certain extent, facilitating subsequent troubleshooting and repair.

[0074] Exemplarily, in this solution, when the communication diagnostic module detects that the switch signal transmitted by one of the hard-wired cables is abnormal, the system can automatically switch to another hard-wired cable for signal transmission;

[0075] This switching may be achieved through a switching device such as a relay. For example, when the diagnostic module finds that the signal transmitted by cable A is abnormal, it will control the relay to switch the signal transmission path to cable B to ensure that the switch signal is transmitted to the target secondary device without interruption.

[0076] For example, in this solution, when a signal abnormality is detected and switching is performed, a fault alarm signal is issued. The fault alarm signal can be issued in a variety of ways, such as sound and light alarm, sending fault information to the monitoring system, etc. After receiving the alarm, the operation and maintenance personnel can repair or replace the faulty cable in time to ensure the long-term reliability of the redundant system.

[0077] This embodiment proposes a secondary equipment debugging system, which uses multiple switch quantity switching boards to form a switch quantity test signal control array. The system can control 64 sets of switch quantities at the same time and can complete a large number of debugging tasks in a shorter time. It can significantly improve the progress of debugging work and reduce the overall time cost of the project. Each switch quantity switching board can be controlled independently. By controlling multiple switch quantity boards, the ability to simultaneously control multiple sets of switch quantity matrix outputs can be achieved, so that the system can realize parallel processing of multiple debugging tasks.

[0078] Based on any of the above solutions, in one possible implementation method, the switching quantity interaction between multiple interval secondary devices is realized by using network communication based on industrial Ethernet, wherein the network communication adopts an adaptive anti-interference protocol;

[0079] The secondary device includes an interference detection unit, which monitors the electromagnetic interference intensity in the network communication environment in real time;

[0080] When the interference detection unit detects that the electromagnetic interference intensity exceeds the preset threshold, the adaptive anti-interference protocol automatically adjusts the encoding method and transmission rate of the network communication to ensure the reliable transmission of the switching signal.

[0081] Exemplarily, in this solution, industrial Ethernet is used to realize the switching quantity interaction between multiple interval secondary devices. The secondary devices in each interval are connected through an Ethernet switch to form a communication network. Switching quantity signals are transmitted on this network. The network communication adopts an adaptive anti-interference protocol. The protocol can automatically adjust the communication parameters according to the changes in the network environment to adapt to the electromagnetic interference environment. When the electromagnetic interference is weak, the protocol adopts an efficient communication method to ensure the transmission speed; when the electromagnetic interference is enhanced, the protocol can be adjusted in time to ensure the reliability of communication.

[0082] Exemplarily, in this solution, an interference detection unit is provided in the secondary device, and its function is to monitor the electromagnetic interference intensity in the network communication environment in real time.

[0083] The interference detection unit can be implemented in a variety of ways, such as measuring the noise level of the network signal, analyzing the bit error rate of the signal, monitoring the spectrum characteristics of the signal, etc. Through these measurement and analysis methods, the information on the electromagnetic interference intensity can be accurately obtained.

[0084] Exemplarily, in this solution, the interference detection unit continuously monitors the network communication environment and obtains electromagnetic interference intensity data in real time, for example, sampling and analyzing the network signal multiple times per second to form dynamic monitoring data of electromagnetic interference intensity;

[0085] The monitored electromagnetic interference intensity is compared with the preset threshold. If the electromagnetic interference intensity is lower than the threshold, it means that the current network communication environment is good. The adaptive anti-interference protocol maintains the current communication encoding method and transmission rate to ensure efficient data transmission.

[0086] The preset threshold value may be determined according to the tolerance of the secondary device to electromagnetic interference and the reliability requirement of the switching signal transmission.

[0087] Exemplarily, in this solution, when the interference detection unit detects that the electromagnetic interference intensity exceeds a preset threshold, the adaptive anti-interference protocol automatically starts the adjustment mechanism;

[0088] Simple encoding methods may have higher transmission efficiency in an interference-free environment, but weaker anti-interference ability. When interference is strong, switching to more complex encoding methods, such as adding redundant check bits, may reduce transmission efficiency to a certain extent, but can effectively resist electromagnetic interference and ensure accurate data transmission.

[0089] When the electromagnetic interference intensity is high, reduce the transmission rate. For example, reduce the original higher transmission rate such as 100Mbps to a lower rate such as 10Mbps. Reducing the transmission rate can reduce the bit error rate of the signal during transmission and ensure that the switch signal can be reliably transmitted between secondary devices.

[0090] Exemplarily, in this solution, an interference detection unit and a network communication module supporting an adaptive anti-interference protocol are embedded in the secondary device. The interference detection unit should have high-precision electromagnetic interference measurement capabilities, and the network communication module should be able to flexibly adjust the encoding method and transmission rate;

[0091] Configure the adaptive anti-interference protocol in the software system of the secondary equipment and set the preset threshold of the electromagnetic interference intensity. According to the performance and application scenarios of the secondary equipment, optimize the configuration of different encoding methods and transmission rates to ensure the best communication effect in various electromagnetic interference environments;

[0092] During the operation of the power system, the interference detection unit continuously monitors the electromagnetic interference intensity, and the adaptive anti-interference protocol automatically adjusts the communication parameters according to the interference situation.

[0093] In this scheme, through the collaborative work of the adaptive anti-interference protocol and the interference detection unit, the reliable transmission of the switch signal can be effectively guaranteed in the electromagnetic interference environment, avoiding signal errors and losses caused by electromagnetic interference, thereby improving the accuracy of the secondary equipment's control and protection of the primary equipment. The adaptive anti-interference protocol can automatically adjust the communication parameters according to the intensity of electromagnetic interference without manual intervention, so that the system can flexibly adapt to electromagnetic interference environments of different intensities, reducing the system's operation and maintenance costs and complexity. Reliable switch interaction is crucial to the stable operation of the power system. This method can effectively prevent power system failures caused by communication failures between secondary devices and ensure the safe and stable operation of the power system.

[0094] On the basis of any of the above schemes, in one possible implementation scheme, a switch quantity signal acquisition device is configured in each interval, and the switch quantity signal acquisition device is used to collect and process the switch quantity signal of the interval;

[0095] Each switch quantity signal acquisition device is connected via a high-speed communication bus, and the high-speed communication bus supports a peer-to-peer communication mode;

[0096] When a switching quantity signal acquisition device at one interval needs to exchange switching quantity signals with switching quantity signal acquisition devices at other intervals, peer-to-peer communication is directly initiated through a high-speed communication bus.

[0097] Exemplarily, in this solution, a dedicated switch quantity signal acquisition device is configured in each bay. The device obtains the original switch quantity signal by connecting with the auxiliary contacts or related sensors of the equipment (such as circuit breakers, disconnectors, etc.) in the bay;

[0098] The collected original switch signal may be affected by factors such as electromagnetic interference, and the acquisition device will process the signal. This includes filtering the signal to remove high-frequency interference noise; shaping the signal to ensure that the signal level meets the requirements of subsequent processing and communication; and performing simple logical judgments, such as judging whether the signal is within a reasonable range of variation to prevent erroneous acquisition.

[0099] The switch quantity signal acquisition devices of each interval are connected through a high-speed communication bus. The high-speed communication bus can meet the needs of fast transmission of switch quantity signals of multiple intervals in the power system, ensuring that the signals are transmitted between the acquisition devices in a timely manner;

[0100] The high-speed communication bus supports peer-to-peer communication mode. In this communication mode, each acquisition device on the bus has an equal communication status, and there is no master-slave distinction. This means that any acquisition device can actively initiate communication with other acquisition devices without going through an intermediate control node.

[0101] The transmission rate of the high-speed communication bus can be set according to the actual application scenario, for example, reaching several thousand bits per second or even higher to accommodate the concurrent transmission of a large number of switching signals.

[0102] Exemplarily, in this solution, the high-speed communication bus can use media such as optical fiber or high-performance shielded cables to reduce the impact of electromagnetic interference on communication. When a switch signal acquisition device in one interval needs to exchange switch signals with acquisition devices in other intervals, peer communication is directly initiated through the high-speed communication bus.

[0103] Exemplarily, in this solution, assuming that the collection device of the incoming line interval detects that the incoming line circuit breaker is abnormally opened, the collection device will immediately encapsulate the switch signal into a data packet that complies with the communication protocol and send it to the collection devices of other related intervals (such as the outgoing line interval, busbar interval, etc.) through the high-speed communication bus;

[0104] After receiving the data packet, the receiving party's collection device unpacks and processes it to obtain the abnormal tripping information of the incoming circuit breaker and perform corresponding operations based on this information, such as issuing an alarm signal, adjusting the control strategy of related equipment in this interval, etc.

[0105] For example, in this solution, during the construction or renovation of the substation, a switch quantity signal acquisition device is installed in each bay. According to the specific conditions of the equipment in the bay, such as the equipment type, quantity, layout, etc., the acquisition device is configured, including setting the signal acquisition port, adjusting the signal processing parameters, etc.;

[0106] Lay a high-speed communication bus and ensure that the bus is connected to the collection device at each interval. During the connection process, do a good job of grounding and shielding the bus to prevent electromagnetic interference;

[0107] Determine the communication protocol of the high-speed communication bus, which should meet the requirements of peer-to-peer communication and be able to effectively encapsulate, transmit and unpack switch signals. For example, a custom protocol based on Ethernet can be used to specify the format and verification method of the data packet in the protocol.

[0108] According to the scale of the substation and the number of switch signals, set the transmission rate, bandwidth allocation and other parameters of the high-speed communication bus to ensure the efficiency and stability of communication.

[0109] In this solution, a distributed switch signal acquisition device is used to avoid the single point failure risk of the centralized acquisition method. Even if the acquisition device in a certain interval fails, it will only affect the switch signal acquisition and processing of the interval, and will not affect other intervals, thus ensuring the reliability of the entire system. The high-speed communication bus supports peer-to-peer communication mode, reducing the intermediate links in communication. The acquisition devices can directly and quickly exchange switch signals, which reduces communication delays, improves the response speed of the entire system to changes in equipment status, and is conducive to the coordinated work of equipment in the substation. Since each acquisition device can independently communicate with other devices in a peer-to-peer manner, when the system is expanded or modified, it is only necessary to connect the acquisition device of the new interval to the high-speed communication bus, without the need for large-scale adjustments to the entire communication architecture, and has strong flexibility.

[0110] On the basis of any of the above solutions, in one possible implementation method, in a secondary device multi-interval switch quantity interactive system based on network communication, the transmitted switch quantity signal is encrypted;

[0111] An asymmetric encryption algorithm is used to generate an encryption key pair, wherein the public key is used to encrypt the switch signal, and the private key is used to decrypt the encrypted switch signal at the receiving end.

[0112] Exemplarily, in this solution, in the secondary equipment multi-interval switch quantity interactive system based on network communication, all switch quantity signals that need to be transmitted are encrypted. These switch quantity signals include but are not limited to the opening and closing status of the circuit breaker, the position status of the disconnector, etc., which are key information for collaborative operation and status monitoring between secondary equipment;

[0113] For example, when a secondary device in one interval (such as a protection device) needs to transmit the trip status signal of the circuit breaker in this interval to secondary devices in other intervals (such as a measurement and control device), the trip status switch signal is encrypted before the signal enters the network transmission channel.

[0114] Exemplarily, in this solution, an asymmetric encryption algorithm is used to generate an encryption key pair, which consists of a public key and a private key;

[0115] At the sending end, the secondary device obtains the public key. The system pre-assigns a public key to each secondary device participating in the communication, or obtains the public key through a secure key distribution mechanism. When a switch signal needs to be transmitted, the secondary device at the sending end uses the public key to encrypt the switch signal;

[0116] The encryption process is based on the mathematical principle of asymmetric encryption algorithm. The public key is used to perform complex mathematical transformation on the switch signal to convert the original switch signal into ciphertext form.

[0117] At the receiving end, the corresponding secondary device holds the private key. The private key is strictly confidential and can only be owned by the legitimate receiving device. When the receiving end receives the encrypted switch signal (ciphertext), it uses the private key to decrypt the ciphertext;

[0118] The decryption process is also based on the principle of asymmetric encryption algorithm. The corresponding mathematical inverse transformation is performed through the private key to restore the ciphertext to the original switching signal, so that the secondary device at the receiving end can correctly obtain and process the switching information.

[0119] Exemplarily, in this solution, during the system initialization phase, an asymmetric encryption algorithm is used to generate an encryption key pair. The generation of the key pair can be completed by a dedicated key management center or a security device with a key generation function;

[0120] The public key is distributed to each secondary device that needs to send a switch signal in a secure manner. For example, the public key can be bound to the identity of the secondary device through a digital certificate mechanism and then distributed to ensure the legitimacy and security of the public key distribution. The private key is securely stored in the corresponding receiving secondary device to prevent private key leakage;

[0121] During the operation of the secondary device, when it is necessary to transmit a switch signal, the secondary device at the sending end encrypts the switch signal using the obtained public key according to the encryption rules of the asymmetric encryption algorithm;

[0122] The encrypted switch signal is transmitted to the receiving secondary device through the network communication channel. During the transmission process, even if the signal is intercepted, the interceptor cannot obtain the original signal content due to the lack of private key;

[0123] After receiving the encrypted switch signal, the secondary device at the receiving end uses the pre-stored private key to perform a decryption operation.

[0124] The decrypted original switch signal can be read and processed normally by the receiving secondary device to realize the coordinated operation and status monitoring functions between the secondary devices.

[0125] In this solution, the switch signal is encrypted by an asymmetric encryption algorithm, which can effectively prevent the signal from being illegally obtained and tampered with during network transmission. Even if the hacker intercepts the encrypted switch signal, he cannot decrypt and obtain the content without the private key, which ensures the security of the interactive information between the secondary devices of the power system. The public key and private key of the asymmetric encryption algorithm are separated in use. The public key can be publicly distributed for encryption, while the private key is kept confidential by the recipient for decryption. This feature makes key management relatively simple, and there is no need to share and transfer complex symmetric keys between multiple secondary devices, reducing the difficulty and security risks of key management.

[0126] Based on any of the above solutions, in one possible implementation, the switch quantity interaction loop between the multiple interval secondary devices includes an agent module, and the agent module is located at the communication interface of each secondary device;

[0127] The agent module monitors and analyzes the input and output timing of the switch signal of each secondary device;

[0128] According to the monitoring and analysis results, the proxy module automatically adjusts the transmission timing of the switch signal of each secondary device, optimizes the timing coordination of the switch interaction between multiple interval secondary devices, and reduces interaction failures caused by timing problems.

[0129] Exemplarily, in this solution, in the switch quantity interaction loop between multiple interval secondary devices, proxy modules are set at the communication interface of each secondary device. These proxy modules serve as key intermediate components for the switch quantity interaction between secondary devices, and play the role of monitoring and adjusting the timing;

[0130] For example, agent modules are installed on the communication interfaces of the secondary devices in the incoming line bay, outgoing line bay and bus bay of the substation respectively, and these agent modules will participate in the switching quantity interaction process between the secondary devices in each bay.

[0131] In this solution, the proxy module is used to monitor the input and output timing of the switch signals of each secondary device in real time, and the high-precision clock and sampling circuit are used to capture the change moment of the switch signal, and accurately record the generation time and arrival time of each switch signal. The proxy module calculates the time difference of the switch signals between different secondary devices, counts the timing fluctuation of the switch signals within a certain time range, determines whether there are abnormal timing changes, and evaluates whether the current timing meets the requirements of normal operation according to the working principle and operation logic of the secondary equipment.

[0132] Exemplarily, in this solution, based on the monitoring and analysis results, the proxy module automatically adjusts the transmission timing of the switch quantity signal of each secondary device;

[0133] When it is found that the output timing of the switch signal of a secondary device is ahead of schedule, the proxy module can insert an appropriate delay in the signal output path of the device to shift the signal transmission timing backward. For example, when it is found that the trip signal sent by a protection device reaches the relevant device too early, the proxy module can add a certain delay time to the signal transmission line to ensure that other devices can receive and process the signal at the correct timing;

[0134] If the output timing of the switch signal of a secondary device is delayed, the proxy module can optimize the signal processing flow of the device or adjust the communication parameters to speed up the output and transmission of the signal. For example, by optimizing the signal queuing mechanism inside the device or increasing the communication baud rate, the signal transmission delay can be reduced.

[0135] In this solution, by accurately monitoring and automatically adjusting the timing of switch quantity signals, interaction failures between secondary devices caused by timing mismatch, such as protection misoperation and equipment misjudgment, are effectively avoided, which greatly improves the reliability of switch quantity interaction between secondary devices and ensures the safe and stable operation of the power system. The proxy module can automatically analyze and adjust the timing according to the actual operation conditions without manual intervention, and can adapt to the timing changes of secondary devices under different working conditions, with strong adaptive capabilities. For example, when the operation mode of the power system changes or the performance of the secondary equipment changes to a certain extent, the proxy module can automatically adjust the timing to ensure the normal operation of the switch quantity interaction. Reasonable switch quantity interaction timing helps to optimize the collaborative working performance of the secondary equipment of the entire power system. By reducing the interference caused by timing problems, the control and monitoring efficiency of the secondary equipment on the primary equipment is improved, which helps to improve the overall operation performance of the power system.

[0136] Embodiment 2

[0137] This embodiment provides a secondary device debugging method, including:

[0138] Generate interval switching control instructions, control the switch quantity switching circuit to work according to the interval switching control instructions, and test the secondary equipment in each test interval in turn;

[0139] Monitoring the switch quantity signals transmitted by the hard-wired cables, and generating a hard-wired cable switching control signal and a fault alarm signal when detecting that the switch quantity signal transmitted by one of the hard-wired cables is abnormal;

[0140] The hard-wired cable switching signal is used for switching of the hard-wired cables, and the fault alarm signal is used for indicating faulty hard wiring.

[0141] Exemplarily, in this solution, the interval switching control instruction is generated based on a logic level truth table.

[0142] Exemplarily, in this solution, the secondary equipment debugging method is implemented based on the secondary equipment debugging system recorded in Example 1, wherein the implementation process of the method is the same as the corresponding content recorded in Example 1, and the specific content is not described in detail again.

[0143] Embodiment 3

[0144] Figure 3 A schematic diagram of the structure of an electronic device 10 that can be used to implement an embodiment of the present invention is shown. The electronic device is intended to represent various forms of digital computers, such as laptop computers, desktop computers, workstations, personal digital assistants, servers, blade servers, mainframe computers, and other suitable computers. The electronic device can also represent various forms of mobile devices, such as personal digital processing, cellular phones, smart phones, wearable devices (such as helmets, glasses, watches, etc.) and other similar computing devices. The components shown herein, their connections and relationships, and their functions are merely examples and are not intended to limit the implementation of the present invention described and / or required herein.

[0145] like Figure 3 As shown, the electronic device 10 includes at least one processor 11, and a memory connected to the at least one processor 11, such as a read-only memory (ROM) 12, a random access memory (RAM) 13, etc., wherein the memory stores a computer program that can be executed by at least one processor, and the processor 11 can perform various appropriate actions and processes according to the computer program stored in the read-only memory (ROM) 12 or the computer program loaded from the storage unit 18 to the random access memory (RAM) 13. In the RAM 13, various programs and data required for the operation of the electronic device 10 can also be stored. The processor 11, the ROM 12, and the RAM 13 are connected to each other through a bus 14. An input / output (I / O) interface 15 is also connected to the bus 14.

[0146] A number of components in the electronic device 10 are connected to the I / O interface 15, including: an input unit 16, such as a keyboard, a mouse, etc.; an output unit 17, such as various types of displays, speakers, etc.; a storage unit 18, such as a disk, an optical disk, etc.; and a communication unit 19, such as a network card, a modem, a wireless communication transceiver, etc. The communication unit 19 allows the electronic device 10 to exchange information / data with other devices through a computer network such as the Internet and / or various telecommunication networks.

[0147] The processor 11 may be a variety of general and / or special processing components with processing and computing capabilities. Some examples of the processor 11 include, but are not limited to, a central processing unit (CPU), a graphics processing unit (GPU), various dedicated artificial intelligence (AI) computing chips, various processors running machine learning model algorithms, a digital signal processor (DSP), and any appropriate processor, controller, microcontroller, etc. The processor 11 executes the various methods and processes described above, such as the secondary device debugging method.

[0148] In some embodiments, the secondary device debugging method may be implemented as a computer program, which is tangibly contained in a computer-readable storage medium, such as a storage unit 18. In some embodiments, part or all of the computer program may be loaded and / or installed on the electronic device 10 via the ROM 12 and / or the communication unit 19. When the computer program is loaded into the RAM 13 and executed by the processor 11, one or more steps of the secondary device debugging method described above may be performed. Alternatively, in other embodiments, the processor 11 may be configured to execute the secondary device debugging method in any other appropriate manner (e.g., by means of firmware).

[0149] Various implementations of the systems and techniques described above herein can be implemented in digital electronic circuit systems, integrated circuit systems, field programmable gate arrays (FPGAs), application specific integrated circuits (ASICs), application specific standard products (ASSPs), systems on chips (SOCs), load programmable logic devices (CPLDs), computer hardware, firmware, software, and / or combinations thereof. These various implementations can include: being implemented in one or more computer programs that can be executed and / or interpreted on a programmable system including at least one programmable processor, which can be a special purpose or general purpose programmable processor that can receive data and instructions from a storage system, at least one input device, and at least one output device, and transmit data and instructions to the storage system, the at least one input device, and the at least one output device.

[0150] Computer programs for implementing the methods of the present invention may be written in any combination of one or more programming languages. These computer programs may be provided to a processor of a general-purpose computer, a special-purpose computer, or other programmable data processing device, so that when the computer program is executed by the processor, the functions / operations specified in the flow chart and / or block diagram are implemented. The computer program may be executed entirely on the machine, partially on the machine, partially on the machine and partially on a remote machine as a stand-alone software package, or entirely on a remote machine or server.

[0151] In the context of the present invention, a computer-readable storage medium may be a tangible medium that may contain or store a computer program for use by or in combination with an instruction execution system, device or equipment. A computer-readable storage medium may include, but is not limited to, electronic, magnetic, optical, electromagnetic, infrared, or semiconductor systems, devices or equipment, or any suitable combination of the foregoing. Alternatively, a computer-readable storage medium may be a machine-readable signal medium. A more specific example of a machine-readable storage medium may include an electrical connection based on one or more lines, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.

[0152] To provide interaction with a user, the systems and techniques described herein may be implemented on an electronic device having: a display device (e.g., a CRT (cathode ray tube) or LCD (liquid crystal display) monitor) for displaying information to the user; and a keyboard and a pointing device (e.g., a mouse or trackball) through which the user can provide input to the electronic device. Other types of devices may also be used to provide interaction with the user; for example, the feedback provided to the user may be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and input from the user may be received in any form (including acoustic input, voice input, or tactile input).

[0153] The systems and techniques described herein may be implemented in a computing system that includes backend components (e.g., as a data server), or a computing system that includes middleware components (e.g., an application server), or a computing system that includes frontend components (e.g., a user computer with a graphical user interface or a web browser through which a user can interact with implementations of the systems and techniques described herein), or a computing system that includes any combination of such backend components, middleware components, or frontend components. The components of the system may be interconnected by any form or medium of digital data communication (e.g., a communication network). Examples of communication networks include: a local area network (LAN), a wide area network (WAN), a blockchain network, and the Internet.

[0154] A computing system may include a client and a server. The client and the server are generally remote from each other and usually interact through a communication network. The client and server relationship is generated by computer programs running on the corresponding computers and having a client-server relationship with each other. The server may be a cloud server, also known as a cloud computing server or cloud host, which is a host product in the cloud computing service system to solve the defects of difficult management and weak business scalability in traditional physical hosts and VPS services.

[0155] Embodiment 4

[0156] This embodiment proposes a computer program product, including a computer program. When the computer program is executed by a processor, it implements any secondary device debugging method recorded in Example 2. Its implementation process and beneficial effects are the same as the corresponding contents recorded in Example 2, and the specific contents are not described in detail.

[0157] Note that the above are only preferred embodiments of the present invention and the technical principles used. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments and substitutions can be made by those skilled in the art without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in more detail through the above embodiments, the present invention is not limited to the above embodiments, and may include more other equivalent embodiments without departing from the concept of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. A secondary equipment debugging system, characterized in that: include: At least one switch quantity switching board, the switch quantity switching board is used to control the switch quantity switching circuit to work according to the interval switching control instruction, and test the secondary equipment in each of the test intervals in turn; Connecting ports for interactive switch quantity signals between multiple bays of secondary equipment via at least two independent hard-wired cables to form a redundant hard-wired structure; A communication diagnostic module is provided in the secondary device, and the communication diagnostic module monitors the switch signal transmitted by the hard-wired cable in real time; When the communication diagnosis module detects that the switch signal transmitted by one of the hard-wired cables is abnormal, it automatically switches to the other hard-wired cable for signal transmission and sends out a fault alarm signal.

2. The secondary equipment debugging system according to claim 1, characterized in that: The network communication based on industrial Ethernet is used to realize the switching quantity interaction between multiple interval secondary devices, wherein the network communication adopts an adaptive anti-interference protocol; The secondary device includes an interference detection unit, which monitors the electromagnetic interference intensity in the network communication environment in real time; When the interference detection unit detects that the electromagnetic interference intensity exceeds a preset threshold, the adaptive anti-interference protocol automatically adjusts the encoding method and transmission rate of the network communication to ensure reliable transmission of the switch signal.

3. The secondary equipment debugging system according to claim 1, characterized in that: Each interval is provided with a switch quantity signal acquisition device, and the switch quantity signal acquisition device is used to acquire and process the switch quantity signal of the interval; Each of the switch signal acquisition devices is connected via a high-speed communication bus, and the high-speed communication bus supports a peer-to-peer communication mode; When a switching quantity signal acquisition device at one interval needs to exchange switching quantity signals with a switching quantity signal acquisition device at another interval, peer-to-peer communication is directly initiated through the high-speed communication bus.

4. The secondary equipment debugging method according to claim 1, characterized in that: In a multi-compartment switch quantity interactive system of secondary equipment based on network communication, the transmitted switch quantity signal is encrypted; An asymmetric encryption algorithm is used to generate an encryption key pair, wherein the public key is used to encrypt the switch signal, and the private key is used to decrypt the encrypted switch signal at the receiving end.

5. The secondary equipment debugging method according to claim 1, characterized in that: The switch quantity interaction loop between the multiple interval secondary devices includes a proxy module, and the proxy module is located at the communication interface of each secondary device; The proxy module monitors and analyzes the input and output timing of the switch signal of each secondary device; According to the monitoring and analysis results, the proxy module automatically adjusts the transmission timing of the switch quantity signals of each secondary device, optimizes the timing coordination of the switch quantity interaction between multiple interval secondary devices, and reduces the interaction failure caused by timing problems.

6. A secondary equipment debugging method, characterized in that: Generate an interval switching control instruction, control the switch quantity switching circuit to work according to the interval switching control instruction, and test the secondary equipment in each of the test intervals in turn; Monitoring the switch quantity signals transmitted by the hard-wired cables, and generating a hard-wired cable switching control signal and a fault alarm signal when detecting that the switch quantity signal transmitted by one of the hard-wired cables is abnormal; The hard-wired cable switching signal is used for switching the hard-wired cable, and the fault alarm signal is used for indicating a fault in the hard-wired cable.

7. The secondary equipment debugging method according to claim 6, characterized in that: The interval switching control instruction is generated based on a logic level truth table.

8. An electronic device, characterized in that: comprising at least one processor, and a memory communicatively connected to the at least one processor; The memory stores a computer program executable by the at least one processor, and the computer program is executed by the at least one processor so that the at least one processor can execute the secondary device debugging method according to any one of claims 6 to 7.

9. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores computer instructions, and the computer instructions are used to enable a processor to implement the secondary device debugging method according to any one of claims 6 to 7 when executed.

10. A computer program product, characterized in that The invention comprises a computer program, which, when executed by a processor, implements the secondary device debugging method according to any one of claims 6 to 7.

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