Current loop monitoring method, current loop monitoring device and electronic system

Abstract

The invention provides a current loop monitoring method and device and an electronic system, the current loop is located at the joint of primary equipment and secondary equipment, and the method comprises the following steps: an obtaining step: obtaining the current resistance value of a terminal strip connected with the current loop; a judgment step: judging whether the resistance value is greater than a threshold resistance; a circulation step: under the condition that the resistance value is judged to be smaller than or equal to the threshold resistance, after a first preset time period, repeatedly executing the acquisition step and the judgment step for at least one time until the resistance value is judged to be larger than the threshold resistance; and a control step: controlling the short circuit module to move to a first preset position to perform short circuit on the current loop under the condition that the resistance value is judged to be greater than the threshold resistance. According to the method, manual inspection is not needed, remedy is carried out in time under the condition that the current loop is slightly open-circuited, and the problem that equipment is damaged due to the fact that the current loop is in an open-circuited state due to the fact that the state of the current loop cannot be monitored in real time in the prior art is solved.

Description

Technical Field

[0001] The present application relates to the technical field of short-circuit protection, and in particular to a current loop monitoring method, a monitoring device, a computer-readable storage medium, a computer program product, and an electronic system. Background Art

[0002] In the substation, relay protection equipment, wave recording equipment, stabilization equipment, backup automatic switching equipment, etc. all need to collect the current of primary equipment, and the number of current circuits involved is very large. During on-site operation and maintenance, it is often found that the connector of the current circuit is not connected properly and the screws are rusted, which will affect the normal operation of the current circuit.

[0003] In addition, during the regular inspection process of the power industry, it is necessary to check the current loop, increase the amount of sampling and other operations. In order to ensure the integrity of the entire current loop and not affect the subsequent circuits of the current series connection, it is necessary to disconnect the connection piece after the current loop is short-circuited on the primary equipment side to prevent the current added during the regular inspection from affecting other normal working equipment. However, the short-circuiting of the current loop and the disconnection of the connection piece at the connection between the primary and secondary equipment require a lot of time, and there is an operational risk of disconnecting the connection piece before the current is short-circuited due to improper operation, which will cause the current loop to open, which may cause the terminal block to burn at the least, or cause irreversible damage to the current transformer at the worst, leading to personal safety accidents, equipment damage and other consequences. Summary of the invention

[0004] The main purpose of the present application is to provide a current loop monitoring method, a monitoring device, a computer-readable storage medium, a computer program product and an electronic system, so as to at least solve the problem in the prior art that the current loop cannot be monitored in real time, resulting in the current loop being in an open circuit state and causing damage to the equipment.

[0005] In order to achieve the above-mentioned purpose, according to one aspect of the present application, a method for monitoring a current loop is provided, wherein the current loop is located at the connection between a primary device and a secondary device, and the method comprises: an acquisition step: acquiring the current resistance value of a terminal block connected to the current loop; a judgment step: judging whether the resistance value is greater than a threshold resistance; a loop step: when it is judged that the resistance value is less than or equal to the threshold resistance, after a first preset time period, repeating the acquisition step and the judgment step at least once until it is judged that the resistance value is greater than the threshold resistance; a control step: when it is judged that the resistance value is greater than the threshold resistance, controlling the short-circuit module to move to a first preset position to short-circuit the current loop.

[0006] Optionally, the monitoring method further includes: acquiring a first current value of the current loop, the first current value including a current value of the current loop before short-circuiting; and pre-storing the first current value.

[0007] Optionally, the monitoring method also includes: after the current loop is short-circuited, obtaining a second current value of the current loop, the second current value including the current value of the current loop after short-circuiting; judging whether the absolute value of the difference between the first current value and the second current value is less than or equal to a preset threshold value, and outputting a first judgment result when the absolute value of the difference between the first current value and the second current value is less than or equal to the preset threshold value, and the first judgment result is used to characterize that the current loop is short-circuited successfully.

[0008] Optionally, the monitoring method also includes: controlling the short-circuit module to move to a second preset position after a second preset time period, the starting time of the second preset time period being the time when the short-circuit module short-circuits the current loop; obtaining a third current value of the short-circuit module at the current moment; judging whether the third current value is zero, and outputting a second judgment result when judging that the third current value is zero, the second judgment result being used to characterize that the current loop has returned to normal operating state.

[0009] According to another aspect of the present application, a current loop monitoring device is provided, including: a first acquisition module, used to execute an acquisition step: acquiring the current resistance value of a terminal block connected to the current loop; a first judgment module, used to execute a judgment step: judging whether the resistance value is greater than a threshold resistance; a loop module, used to execute a loop step: when judging that the resistance value is less than or equal to the threshold resistance, after a first preset time period, repeating the acquisition step and the judgment step at least once until the resistance value is greater than the threshold resistance; a first control module, used to execute a control step: when judging that the resistance value is greater than the threshold resistance, controlling the short-circuit module to move to a first preset position to short-circuit the current loop.

[0010] According to another aspect of the present application, an electronic system is provided, comprising at least: a short-circuiting module, one or more processors, a memory, and one or more programs, wherein the one or more programs are stored in the memory and are configured to be executed by the one or more processors, the one or more programs include a method for executing the monitoring method of the current loop, and the short-circuiting module is used to short-circuit the current loop.

[0011] Optionally, the electronic system also includes: a current detection module, electrically connected to the current loop, for obtaining a first current value of the current loop, wherein the first current value includes a current value of the current loop before short-circuiting; a resistance detection module, electrically connected to the current loop, for obtaining a resistance value of the current loop before short-circuiting; and a communication module, electrically connected to the current detection module and the resistance detection module, for transmitting the first current value and the resistance value.

[0012] Optionally, the electronic system also includes: a processing module, electrically connected to the short-circuit module and the communication module, and used to determine whether the absolute value of the difference between the first current value and the second current value is less than or equal to a preset threshold value. When the absolute value of the difference between the first current value and the second current value is less than or equal to the preset threshold value, it indicates that the current loop is short-circuited successfully, and the second current value includes the current value of the current loop after short-circuiting.

[0013] According to another aspect of the present application, a computer-readable storage medium is provided, the computer-readable storage medium comprising a stored program, wherein when the program is executed, the device where the computer-readable storage medium is located is controlled to execute any one of the control methods for determining a crack position of a cable seal.

[0014] According to another aspect of the present application, a computer program product is provided, comprising computer instructions, which implement the above-mentioned control method for determining a crack position of a cable seal when the computer instructions are executed by a processor.

[0015] By applying the technical solution of the present application, the current loop monitoring method determines whether the current loop is in an open circuit state by obtaining the resistance value of the current loop connection terminal row located at the connection between the primary device and the secondary device in real time. When it is determined that the resistance value is less than or equal to the threshold resistance, it indicates that the current loop is in a normal operating state. After the first preset time period, the resistance value of the current loop connection terminal row is obtained again and the judgment is made again. When it is determined that the resistance value is greater than the threshold resistance, it indicates that the current loop is open. The short-circuit module is controlled to short-circuit the current loop so that the current loop is changed from an open circuit state to a short circuit state. No manual inspection is required, and timely remediation is performed when the current loop is slightly open, which solves the problem in the prior art that the current loop is in an open circuit state and the equipment is damaged due to the inability to monitor the state of the current loop in real time. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings constituting part of the present application are used to provide a further understanding of the present application. The exemplary embodiments and descriptions of the present application are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0017] Figure 1 A hardware structure block diagram of a mobile terminal for performing a current loop monitoring method provided in an embodiment of the present application is shown;

[0018] Figure 2 A schematic flow chart of a current loop monitoring method provided according to an embodiment of the present application is shown;

[0019] Figure 3 A schematic flow chart of another current loop monitoring method provided according to an embodiment of the present application is shown;

[0020] Figure 4 A structural block diagram of a current loop monitoring device provided according to an embodiment of the present application is shown;

[0021] Figure 5 A structural block diagram of a current loop monitoring system provided according to an embodiment of the present application is shown.

[0022] The above drawings include the following reference numerals:

[0023] 102, processor; 104, memory; 106, transmission device; 108, input and output devices. DETAILED DESCRIPTION

[0024] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0025] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0026] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequential order. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present application described here. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0027] As introduced in the background technology, in order to ensure the integrity of the entire current loop and not affect the subsequent current series circuit, it is necessary to disconnect the connection of the connecting piece after the current loop is short-circuited on the primary equipment side to prevent the current added during the regular inspection from affecting other normal working equipment. However, the short-circuiting of the current loop and the disconnection of the connecting piece waste a lot of time, and there is an operational risk of disconnecting the connecting piece before the current is short-circuited due to improper operation, which will cause the current loop to open, which may cause the terminal block to burn at the least, or even cause irreversible damage to the current transformer, resulting in personal safety accidents, equipment damage and other consequences.

[0028] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0029] The method embodiments provided in the embodiments of the present application can be executed in a mobile terminal, a computer terminal or a similar computing device. Taking running on a mobile terminal as an example, Figure 1 FIG. 1 is a hardware structure block diagram of a mobile terminal of a current loop monitoring method according to an embodiment of the present invention. Figure 1 As shown, the mobile terminal may include one or more ( Figure 1 Only one is shown in the figure) a processor 102 (the processor 102 may include but is not limited to a processing device such as a microprocessor MCU or a programmable logic device FPGA) and a memory 104 for storing data, wherein the mobile terminal may also include a transmission device 106 and an input / output device 108 for communication functions. It can be understood by those skilled in the art that Figure 1 The structure shown is only for illustration and does not limit the structure of the mobile terminal. Figure 1 More or fewer components as shown, or with Figure 1 Different configurations shown.

[0030] The memory 104 can be used to store computer programs, for example, software programs and modules of application software, such as the computer program corresponding to the current loop monitoring method in the embodiment of the present invention. The processor 102 executes various functional applications and data processing by running the computer program stored in the memory 104, that is, the above method is implemented. The memory 104 may include a high-speed random access memory, and may also include a non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memory. In some examples, the memory 104 may further include a memory remotely arranged relative to the processor 102, and these remote memories may be connected to the mobile terminal via a network. Examples of the above-mentioned network include but are not limited to the Internet, an intranet, a local area network, a mobile communication network, and a combination thereof. The transmission device 106 is used to receive or send data via a network. The above-mentioned specific examples of the network may include a wireless network provided by a communication provider of the mobile terminal. In one example, the transmission device 106 includes a network adapter (Network Interface Controller, referred to as NIC), which can be connected to other network devices through a base station so as to communicate with the Internet. In one example, the transmission device 106 may be a radio frequency (RF) module, which is used to communicate with the Internet wirelessly.

[0031] In this embodiment, a method for monitoring a current loop running on a mobile terminal, a computer terminal or a similar computing device is provided. It should be noted that the steps shown in the flowchart of the accompanying drawings can be executed in a computer system such as a set of computer executable instructions, and although a logical order is shown in the flowchart, in some cases, the steps shown or described can be executed in an order different from that shown here.

[0032] Figure 2 FIG. 1 is a flow chart of a method for monitoring a current loop according to an embodiment of the present application. Figure 2 As shown, the method comprises the following steps:

[0033] Step S201, an acquisition step: acquiring a current resistance value of a terminal block connected to a current loop;

[0034] Step S202, judging step: judging whether the above resistance value is greater than a threshold resistance;

[0035] Step S203, a loop step: when it is determined that the resistance value is less than or equal to the threshold resistance, after a first preset time period, repeatedly performing the obtaining step and the determining step at least once until it is determined that the resistance value is greater than the threshold resistance;

[0036] Step S204, control step: when it is determined that the resistance value is greater than the threshold resistance, control the short-circuit module to move to a first preset position to short-circuit the current loop.

[0037] By obtaining the resistance value of the current loop connection terminal block located at the connection between the primary device and the secondary device in real time, it is judged whether the current loop is in an open circuit state. When it is judged that the resistance value is less than or equal to the threshold resistance, it indicates that the current loop is in a normal operating state. After the first preset time period, the resistance value of the current loop connection terminal block is obtained again and the judgment is made again. When it is judged that the resistance value is greater than the threshold resistance, it indicates that the current loop is open. The short-circuit module is controlled to short-circuit the current loop to change the current loop from an open circuit state to a short circuit state. No manual inspection is required, and timely remediation is performed when the current loop is slightly open, which solves the problem in the prior art that the current loop is in an open circuit state and the equipment is damaged due to the inability to monitor the state of the current loop in real time.

[0038] In some optional implementations, the monitoring method further includes: acquiring a first current value of the current loop, the first current value including a current value of the current loop before short-circuiting; and pre-storing the first current value.

[0039] In the above optional implementation, while obtaining the resistance value of the above current loop, the first current value of the above current loop is obtained, and the above first current value is pre-stored for subsequent judgment and use. The above first current value is the current of the above current loop in the working state.

[0040] In some optional embodiments, the monitoring method further includes: obtaining a second current value of the current loop after the current loop is short-circuited, the second current value including the current value of the current loop after short-circuiting; determining whether the absolute value of the difference between the first current value and the second current value is less than or equal to a preset threshold value, and outputting a first judgment result when the absolute value of the difference between the first current value and the second current value is less than or equal to the preset threshold value, and the first judgment result is used to characterize that the current loop is short-circuited successfully.

[0041] In the above optional implementation, after the above judgment that the resistance value is greater than the threshold resistance, it indicates that the current current loop is open, the short-circuit module is controlled to move to short-circuit the current loop, and the second current value of the current loop is obtained at this time, and the previously pre-stored first current value and the second current value are compared, and then it is determined whether the absolute value of the difference between the two is less than or equal to the preset threshold value, and whether the current loop is successfully short-circuited is known according to the judgment result. In the case where the absolute value of the difference between the first current value and the second current value is less than or equal to the preset threshold value, the first judgment result is output, and the first judgment result indicates that the current loop is successfully short-circuited. In the case where the absolute value of the difference between the first current value and the second current value is greater than the preset threshold value, it indicates that the short-circuit fails, and a failure signal is sent to the service platform, prompting that the staff needs to check and find the problem at this time. At the same time, the second current value will be transmitted to the protection device on the primary equipment side for logical judgment of relay protection. When an abnormal situation occurs on the primary device side, the internal short-circuit module can be driven immediately to short-circuit the current loop on the primary device side, and the monitored current can be transmitted to the protection device, thereby avoiding the current loop being open, and also avoiding the situation where the protection device cannot obtain the current analog quantity when the current loop is short-circuited on the primary device side. Among them, the current analog quantity is used to judge the load condition of the line (the load increases, the current increases) and fault judgment (the current increases during short circuit and ground fault). If it cannot be collected, it is impossible to judge the load size of the line, and it is impossible to trip the line circuit breaker in time when a fault occurs, which will cause the scope of the accident to expand.

[0042] In some optional embodiments, the monitoring method further includes: controlling the short-circuit module to move to a second preset position after a second preset time period, the starting moment of the second preset time period being the moment when the short-circuit module short-circuits the current loop; obtaining a third current value of the short-circuit module at the current moment; determining whether the third current value is zero, and outputting a second determination result when the third current value is determined to be zero, wherein the second determination result is used to characterize that the current loop has returned to normal operating state.

[0043] In the above optional implementation, after the second preset time, the open circuit fault of the current loop is processed, and the short-circuit module is controlled to move to the second preset position to restore the current loop to normal operation. However, in order to ensure safety, the third current value of the short-circuit module will be obtained at this time to determine whether the third current value is zero. If it is zero, it indicates that the short-circuit module has completely left the current loop, indicating that the current loop has returned to normal operation. If it is not zero, it means that the current loop state has not been successfully restored. At this time, a failure signal is sent to the service platform to notify the staff to conduct inspections and processing to avoid the protection device from malfunctioning the relay protection logic due to the current of the current loop being shunted, such as malfunctioning of the circuit breaker.

[0044] For example, Figure 3 As shown, first obtain the current resistance value of the terminal block connected to the current loop located at the connection point between the primary device and the secondary device and the first current value of the current loop; judge whether the above resistance value is greater than the preset resistance; in the case of judging that the above resistance value is less than or equal to the above threshold resistance, after the first preset time period, repeat the above acquisition step and the above judgment step at least once until it is judged that the above resistance value is greater than the above threshold resistance; in the case of judging that the above resistance value is greater than the above threshold resistance, control the short-circuit module to move to the first preset position to short-circuit the above current loop, and then obtain the second current value of the above current loop, and judge whether the absolute value of the difference between the above first current value and the above second current value is less than or equal to the preset threshold; in the case that the absolute value of the difference between the above first current value and the above second current value is greater than the above preset threshold, it indicates that the short-circuit fails, and a service is notified. The service platform sends a failure signal, prompting that the staff needs to check and find the problem at this time; when the absolute value of the difference between the above-mentioned first current value and the above-mentioned second current value is less than or equal to the above-mentioned preset threshold value, output the first judgment result, and the above-mentioned first judgment result is used to indicate that the above-mentioned current loop is short-circuited successfully; after the open circuit fault of the circuit loop is eliminated, the above-mentioned short-circuit module is controlled to move to the second preset position, and the third current value of the above-mentioned short-circuit module at the current moment is obtained; it is determined whether the above-mentioned third current value is zero. When it is determined that the above-mentioned third current value is zero, the second judgment result is output, and the above-mentioned second judgment result is used to indicate that the above-mentioned current loop has resumed normal operation. When it is determined that the above-mentioned third current value is not zero, it indicates that the above-mentioned current loop has failed to resume normal operation, and a failure signal is sent to the service platform, prompting that the staff needs to check and find the problem at this time.

[0045] It should be noted that the steps shown in the flowcharts of the accompanying drawings can be executed in a computer system such as a set of computer executable instructions, and that, although a logical order is shown in the flowcharts, in some cases, the steps shown or described can be executed in an order different from that shown here.

[0046] The embodiment of the present application also provides a monitoring device for a current loop. It should be noted that the monitoring device for a current loop of the embodiment of the present application can be used to execute the monitoring method for a current loop provided by the embodiment of the present application. The device is used to implement the above-mentioned embodiments and preferred implementation modes, and the descriptions that have been made will not be repeated. As used below, the term "module" can implement a combination of software and / or hardware for a predetermined function. Although the device described in the following embodiments is preferably implemented in software, the implementation of hardware, or a combination of software and hardware, is also possible and conceived.

[0047] The following introduces the control device of the current loop monitoring device provided in the embodiment of the present application.

[0048] Figure 4 Schematic diagram of a control device of a current loop monitoring device according to an embodiment of the present application. Figure 4 As shown, the device includes: a first acquisition module 100, used to execute an acquisition step: acquiring the current resistance value of the terminal block connected to the current loop; a first judgment module 200, used to execute a judgment step: judging whether the above resistance value is greater than a threshold resistance; a circulation module 300, used to execute a circulation step: in the case of judging that the above resistance value is less than or equal to the above threshold resistance, after a first preset time period, repeating the above acquisition step and the above judgment step at least once until the above resistance value is judged to be greater than the above threshold resistance; a first control module 400, used to execute a control step: in the case of judging that the above resistance value is greater than the above threshold resistance, controlling the short-circuit module to move to a first preset position to short-circuit the above current loop.

[0049] The monitoring device of the current loop of the present application obtains the resistance value of the current loop connection terminal row located at the connection between the primary device and the secondary device in real time through the acquisition module, and the judgment module judges whether the current current loop is in an open circuit state. When it is judged that the resistance value is less than or equal to the threshold resistance, it indicates that the current loop is in a normal operating state. After the first preset time period, the circulation module obtains the resistance value of the current loop connection terminal row again and makes a judgment again; when the control module judges that the resistance value is greater than the threshold resistance, it indicates that the current loop is open, and the short-circuit module is controlled to short-circuit the current loop, so that the current loop is changed from an open circuit state to a short circuit state. No manual inspection is required, and timely remedies are performed when the current loop is slightly open, which solves the problem in the prior art that the current loop is in an open circuit state and the equipment is damaged due to the inability to monitor the state of the current loop in real time.

[0050] In some optional embodiments, the monitoring device further includes a second acquisition module, which is used to acquire a first current value of the current loop, wherein the first current value includes a current value of the current loop before short-circuiting; and pre-store the first current value.

[0051] In some optional embodiments, the monitoring device also includes a third acquisition module and a second judgment module, the third acquisition module is used to obtain the second current value of the above-mentioned current loop after the above-mentioned current loop is short-circuited, the above-mentioned second current value includes the current value of the above-mentioned current loop after short-circuiting, and the second judgment module is used to judge whether the absolute value of the difference between the above-mentioned first current value and the above-mentioned second current value is less than or equal to the above-mentioned preset threshold value, and output a first judgment result when the absolute value of the difference between the above-mentioned first current value and the above-mentioned second current value is less than or equal to the above-mentioned preset threshold value, and the above-mentioned first judgment result is used to characterize that the above-mentioned current loop is short-circuited successfully.

[0052] In some optional embodiments, the monitoring device also includes a second control module, a fourth acquisition module and a third judgment module, the second control module is used to control the short-circuit module to move to a second preset position after a second preset time period, and the starting time of the second preset time period is the moment when the short-circuit module short-circuits the current loop; the fourth acquisition module is used to obtain the third current value of the short-circuit module at the current moment; the third judgment module is used to judge whether the third current value is zero, and when it is judged that the third current value is zero, output a second judgment result, and the second judgment result is used to characterize that the current loop has returned to normal operating state.

[0053] The processor includes a kernel, which calls the corresponding program unit from the memory. One or more kernels can be set, and the kernel parameters are adjusted to solve the problem of security risks in multi-source power data caused by the influence of malicious nodes on the security of power Internet of Things data transmission in the prior art.

[0054] The memory may include non-permanent memory in a computer-readable medium, random access memory (RAM) and / or non-volatile memory, such as read-only memory (ROM) or flash RAM, and the memory includes at least one memory chip.

[0055] An embodiment of the present invention provides a computer-readable storage medium, wherein the computer-readable storage medium includes a stored program, wherein when the program is executed, the device where the computer-readable storage medium is located is controlled to execute the current loop monitoring method.

[0056] Specifically, the current loop monitoring method includes:

[0057] Step S201, an acquisition step: acquiring a current resistance value of a terminal block connected to a current loop;

[0058] Step S202, judging step: judging whether the above resistance value is greater than a threshold resistance;

[0059] Step S203, a loop step: when it is determined that the resistance value is less than or equal to the threshold resistance, after a first preset time period, repeatedly performing the obtaining step and the determining step at least once until it is determined that the resistance value is greater than the threshold resistance;

[0060] Step S204, control step: when it is determined that the resistance value is greater than the threshold resistance, control the short-circuit module to move to a first preset position to short-circuit the current loop.

[0061] By obtaining the resistance value of the current loop connection terminal block located at the connection between the primary device and the secondary device in real time, it is judged whether the current loop is in an open circuit state. When it is judged that the resistance value is less than or equal to the threshold resistance, it indicates that the current loop is in a normal operating state. After the first preset time period, the resistance value of the current loop connection terminal block is obtained again and the judgment is made again. When it is judged that the resistance value is greater than the threshold resistance, it indicates that the current loop is open. The short-circuit module is controlled to short-circuit the current loop to change the current loop from an open circuit state to a short circuit state. No manual inspection is required, and timely remediation is performed when the current loop is slightly open, which solves the problem in the prior art that the current loop is in an open circuit state and the equipment is damaged due to the inability to monitor the state of the current loop in real time.

[0062] In some optional implementations, the monitoring method further includes: acquiring a first current value of the current loop, the first current value including a current value of the current loop before short-circuiting; and pre-storing the first current value.

[0063] In some optional embodiments, the monitoring method further includes: obtaining a second current value of the current loop after the current loop is short-circuited, the second current value including the current value of the current loop after short-circuiting; determining whether the absolute value of the difference between the first current value and the second current value is less than or equal to a preset threshold value, and outputting a first judgment result when the absolute value of the difference between the first current value and the second current value is less than or equal to the preset threshold value, and the first judgment result is used to characterize that the current loop is short-circuited successfully.

[0064] In some optional embodiments, the monitoring method further includes: controlling the short-circuit module to move to a second preset position after a second preset time period, the starting moment of the second preset time period being the moment when the short-circuit module short-circuits the current loop; obtaining a third current value of the short-circuit module at the current moment; determining whether the third current value is zero, and outputting a second determination result when the third current value is determined to be zero, wherein the second determination result is used to characterize that the current loop has returned to normal operating state.

[0065] An embodiment of the present invention provides an electronic system, such as Figure 5 As shown, it at least includes: a short-circuit module, one or more processors, a memory, and one or more programs, wherein the one or more programs are stored in the memory and are configured to be executed by the one or more processors, the one or more programs include a method for executing the above-mentioned current loop monitoring method, and the short-circuit module is used to short-circuit the current loop.

[0066] When an abnormal situation occurs, the electronic system can immediately drive the internal short-circuit module to short-circuit the current loop on the primary device side. When the current loop needs to be short-circuited during on-site work, the function of short-circuiting the primary device side of the current loop can be achieved by pressing the one-touch start button of the electronic system, which greatly improves work efficiency and reduces operational risks in short-circuiting the current loop.

[0067] In the above optional implementation, if Figure 5 As shown, the electronic system is installed on the current loop terminal block, the four phases (A, B, C, N phases) of the current detection module are clamped into the corresponding current loop, and the electronic system is started. At this time, the current detection module will return the current information 1 (first current value) of the current current loop to the electronic system, and the electronic system communicates through the communication module to transmit the real-time resistance information (resistance value, resistance between two nodes of the same layer of terminal block) and current information 1 in the current loop.

[0068] In some optional embodiments, such as Figure 5 As shown, the electronic system further includes: a current detection module, electrically connected to the current loop, for obtaining a first current value of the current loop, wherein the first current value includes a current value of the current loop before short-circuiting; a resistance detection module, electrically connected to the current loop, for obtaining a resistance value of the current loop before short-circuiting; and a communication module, electrically connected to the current detection module and the resistance detection module, for transmitting the first current value and the resistance value.

[0069] In some optional embodiments, such as Figure 5As shown, the electronic system further includes: a processing module, electrically connected to the short-circuit module and the communication module, for determining whether the absolute value of the difference between the first current value and the second current value is less than or equal to a preset threshold value. When the absolute value of the difference between the first current value and the second current value is less than or equal to the preset threshold value, it indicates that the current loop is successfully short-circuited, and the second current value includes the current value of the current loop after the short-circuit.

[0070] In the above optional implementation, if Figure 5 As shown, the processing module uses the resistance information transmitted back in real time to determine whether there is an open circuit, and dynamically evaluates the state of the current loop. The electronic system also includes a power module, which is electrically connected to the processing module, and then continues to power the entire electronic system. If the resistance value exceeds the predetermined threshold, it is determined that the current loop is in a suspected open circuit state. At this time, a drive signal 1 will be sent to the electronic system to drive the internal short-circuit module to extend. When the short-circuit module is extended into place, the current in the current loop flows through the short-circuit module without passing through the connecting piece in the terminal row. At this time, the short-circuit module sends an action completion signal 1 to the electronic system, and transmits the substitute current information 2 (second current information) back to the substitute monitoring device. The electronic system matches and analyzes the current information 1 collected by the current detection module and the current information 2 collected by the short-circuit module. If the current information 1 and the current information 2 match successfully, and the difference is less than the set threshold, the substitute success signal is returned to the processing module. If the current information 1 and the current information 2 do not match successfully, and the difference is greater than the set threshold, the substitute failure signal is returned to the processing module, prompting that the staff needs to check and find the problem at this time. At the same time, the electronic system will transmit the current information 2 back to the protection device for judgment of the relay protection logic.

[0071] When the open circuit fault of the current loop is handled, the staff can send a drive signal 2 to the processing module in the service platform to the electronic system. After receiving the drive signal 2, the electronic system will drive the short-circuit module to retract, so that its substitute circuit state is restored and restored to normal operation. When the short-circuit module is recovered in place, the current in the current loop does not pass through the short-circuit bar module. If the current information 2 is 0 at this time, it means that the substitute circuit state has been successfully restored. At this time, the action completion signal 2 is sent to the substitute circuit monitoring device. If the current information 2 is not 0, it means that the substitute circuit state has not been successfully restored. At this time, the staff needs to check and handle it to avoid the relay protection logic of the protection device from malfunctioning due to the current in the current loop being shunted, such as the false tripping of the circuit breaker.

[0072] It should be noted that once the current loop is disconnected, the current on the secondary device side is equal to zero. At this time, the current on the primary device side becomes the excitation current, which will cause the magnetic flux in the core to rise sharply, resulting in magnetic saturation of the core or inducing a higher voltage on the secondary device side. This high voltage will bring danger to the instruments and operators on the secondary device side. For example, the secondary device side of the current transformer cannot be disconnected. In the worst case, the terminal block will be burned, and in the worst case, the current transformer will be damaged and personal injury accidents will occur.

[0073] An embodiment of the present invention provides a processor, and the processor is used to run a program, wherein the current loop monitoring method is executed when the program is running.

[0074] Specifically, the current loop monitoring method includes:

[0075] Step S201, an acquisition step: acquiring a current resistance value of a terminal block connected to a current loop;

[0076] Step S202, judging step: judging whether the above resistance value is greater than a threshold resistance;

[0077] Step S203, a loop step: when it is determined that the resistance value is less than or equal to the threshold resistance, after a first preset time period, repeatedly performing the obtaining step and the determining step at least once until it is determined that the resistance value is greater than the threshold resistance;

[0078] Step S204, control step: when it is determined that the resistance value is greater than the threshold resistance, control the short-circuit module to move to a first preset position to short-circuit the current loop.

[0079] An embodiment of the present invention provides a computer program product, including computer instructions, which implement at least the following steps when executed by a processor.

[0080] Specifically, the current loop monitoring method includes:

[0081] Step S201, an acquisition step: acquiring a current resistance value of a terminal block connected to a current loop;

[0082] Step S202, judging step: judging whether the above resistance value is greater than a threshold resistance;

[0083] Step S203, a loop step: when it is determined that the resistance value is less than or equal to the threshold resistance, after a first preset time period, repeatedly performing the obtaining step and the determining step at least once until it is determined that the resistance value is greater than the threshold resistance;

[0084] Step S204, control step: when it is determined that the resistance value is greater than the threshold resistance, control the short-circuit module to move to a first preset position to short-circuit the current loop.

[0085] The devices in this article can be servers, PCs, PADs, mobile phones, etc.

[0086] Obviously, those skilled in the art should understand that the above modules or steps of the present invention can be implemented by a general computing device, they can be concentrated on a single computing device, or distributed on a network composed of multiple computing devices, they can be implemented by a program code executable by a computing device, so that they can be stored in a storage device and executed by the computing device, and in some cases, the steps shown or described can be executed in a different order than here, or they can be made into individual integrated circuit modules, or multiple modules or steps therein can be made into a single integrated circuit module for implementation. Thus, the present invention is not limited to any specific combination of hardware and software.

[0087] Those skilled in the art will appreciate that the embodiments of the present application may be provided as methods, systems, or computer program products. Therefore, the present application may adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment in combination with software and hardware. Moreover, the present application may adopt the form of a computer program product implemented in one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) that include computer-usable program code.

[0088] The present application is described with reference to the flowcharts and / or block diagrams of the methods, devices (systems), and computer program products according to the embodiments of the present application. It should be understood that each process and / or box in the flowchart and / or block diagram, as well as the combination of the processes and / or boxes in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0089] These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1A function specified in one or more boxes.

[0090] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for implementing the process. Figure 1 A process or multiple processes and / or boxes Figure 1 The steps for the functions specified in one or more boxes.

[0091] In a typical configuration, a computing device includes one or more processors (CPU), input / output interfaces, network interfaces, and memory.

[0092] The memory may include non-permanent memory in a computer-readable medium, random access memory (RAM) and / or non-volatile memory in the form of read-only memory (ROM) or flash RAM. The memory is an example of a computer-readable medium.

[0093] Computer readable media include permanent and non-permanent, removable and non-removable media that can be implemented by any method or technology to store information. Information can be computer readable instructions, data structures, program modules or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other memory technology, compact disk read-only memory (CD-ROM), digital versatile disk (DVD) or other optical storage, magnetic cassettes, magnetic disk storage or other magnetic storage devices or any other non-transmission media that can be used to store information that can be accessed by a computing device. As defined herein, computer readable media does not include temporary computer readable media (transitory media), such as modulated data signals and carrier waves.

[0094] It should also be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, commodity or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, commodity or device. In the absence of more restrictions, the elements defined by the sentence "comprises a ..." do not exclude the existence of other identical elements in the process, method, commodity or device including the elements.

[0095] From the above description, it can be seen that the above embodiments of the present application achieve the following technical effects:

[0096] 1) The current loop monitoring method of the present application obtains the resistance value of the current loop connection terminal row located at the connection between the primary device and the secondary device in real time to determine whether the current loop is in an open circuit state. When it is determined that the resistance value is less than or equal to the threshold resistance, it indicates that the current loop is in a normal operating state. After the first preset time period, the resistance value of the current loop connection terminal row is obtained again and the judgment is made again. When it is determined that the resistance value is greater than the threshold resistance, it indicates that the current loop is open. The short-circuit module is controlled to short-circuit the current loop to change the current loop from an open circuit state to a short circuit state. No manual inspection is required, and timely remediation is performed when the current loop is slightly open, which solves the problem in the prior art that the current loop is in an open circuit state and the equipment is damaged due to the inability to monitor the state of the current loop in real time.

[0097] 2) The monitoring device of the current loop of the present application obtains the resistance value of the current loop connection terminal row located at the connection between the primary device and the secondary device in real time through the acquisition module, and the judgment module judges whether the current current loop is in an open circuit state. When it is judged that the above resistance value is less than or equal to the threshold resistance, it indicates that the above current loop is in a normal operating state. After the first preset time period, the circulation module obtains the resistance value of the current loop connection terminal row again and makes a judgment again; when the control module judges that the above resistance value is greater than the threshold resistance, it indicates that the above current loop is open, and the short-circuit module is controlled to short-circuit the above current loop, so that the current loop changes from an open circuit state to a short circuit state. No manual inspection is required, and timely remediation is performed when the current loop is slightly open, which solves the problem in the prior art that the current loop is in an open circuit state and the equipment is damaged due to the inability to monitor the state of the current loop in real time.

[0098] 3) It can monitor the status of all current circuits in the substation in real time, avoid the occurrence of minor current circuit opens that cannot be discovered due to inadequate inspections, and reduce the workload of on-site staff. When performing work that requires short-circuiting the current circuit, it can conveniently use the one-button start of the electronic device to short-circuit the primary equipment side, greatly reducing work time and improving work efficiency.

[0099] 4) When the current loop is open, the current loop can be short-circuited on one side of the equipment immediately, and the current size can be obtained through the current detection module to support the protection function of the protection device on the primary equipment side to avoid the unprotected operation of the running equipment. After the current loop enters the short-circuit state, the current information of the current loop can be obtained through the current detection module, so that when handling the current open circuit fault, the circuit breaker will not operate without protection.

[0100] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A method for monitoring a current loop, characterized in that: The current loop is located at the connection between the primary device and the secondary device, and the method comprises: Acquisition steps: acquiring the current resistance value of the terminal block connected to the current loop; Determining step: determining whether the resistance value is greater than a threshold resistance; Looping step: when it is determined that the resistance value is less than or equal to the threshold resistance, after a first preset time period, repeatedly performing the obtaining step and the determining step at least once until it is determined that the resistance value is greater than the threshold resistance; Control step: when it is determined that the resistance value is greater than the threshold resistance, control the short-circuit module to move to a first preset position to short-circuit the current loop.

2. The monitoring method according to claim 1, characterized in that: The monitoring method further comprises: Acquire a first current value of the current loop, where the first current value includes a current value of the current loop before short-circuiting; The first current value is pre-stored.

3. The monitoring method according to claim 2, characterized in that: The monitoring method further comprises: After the current loop is short-circuited, obtaining a second current value of the current loop, wherein the second current value includes a current value of the current loop after the current loop is short-circuited; Determine whether the absolute value of the difference between the first current value and the second current value is less than or equal to a preset threshold value. If the absolute value of the difference between the first current value and the second current value is less than or equal to the preset threshold value, output a first judgment result, and the first judgment result is used to characterize that the current loop is short-circuited successfully.

4. The monitoring method according to claim 2, characterized in that: The monitoring method further comprises: Controlling the short-circuit module to move to a second preset position after a second preset time period, wherein the start time of the second preset time period is the time when the short-circuit module short-circuits the current loop; Obtaining a third current value of the short-circuit module at a current moment; It is determined whether the third current value is zero. When it is determined that the third current value is zero, a second determination result is output, wherein the second determination result is used to indicate that the current loop has returned to a normal operating state.

5. A current loop monitoring device, characterized in that: include: A first acquisition module is used to perform an acquisition step: acquiring a current resistance value of a terminal block connected to the current loop; A first judging module is used to perform a judging step: judging whether the resistance value is greater than a threshold resistance; A loop module, configured to execute a loop step: when it is determined that the resistance value is less than or equal to the threshold resistance, after a first preset time period, repeatedly executing the obtaining step and the determining step at least once until it is determined that the resistance value is greater than the threshold resistance; The first control module is used to execute a control step: when it is determined that the resistance value is greater than the threshold resistance, the short-circuit module is controlled to move to a first preset position to short-circuit the current loop.

6. An electronic system, characterized in that: At least: A short-circuiting module, one or more processors, a memory, and one or more programs, wherein the one or more programs are stored in the memory and are configured to be executed by the one or more processors, the one or more programs include a method for monitoring a current loop according to any one of claims 1 to 4, and the short-circuiting module is used to short-circuit the current loop.

7. The electronic system according to claim 6, characterized in that: The electronic system further comprises: a current detection module, electrically connected to the current loop, and configured to obtain a first current value of the current loop, wherein the first current value includes a current value of the current loop before short-circuiting; A resistance detection module, electrically connected to the current loop, and used to obtain the resistance value of the current loop before short-circuiting; A communication module is electrically connected to the current detection module and the resistance detection module, and is used to transmit the first current value and the resistance value.

8. The electronic system according to claim 7, characterized in that: The electronic system further comprises: A processing module is electrically connected to the short-circuit module and the communication module, and is used to determine whether the absolute value of the difference between the first current value and the second current value is less than or equal to a preset threshold value. When the absolute value of the difference between the first current value and the second current value is less than or equal to the preset threshold value, it indicates that the current loop is short-circuited successfully, and the second current value includes the current value of the current loop after short-circuiting.

9. A computer-readable storage medium, characterized in that: The computer-readable storage medium includes a stored program, wherein when the program is executed, the device where the computer-readable storage medium is located is controlled to execute the current loop monitoring method according to any one of claims 1 to 4.

10. A computer program product comprising computer instructions, characterized in that When the computer instructions are executed by a processor, the current loop monitoring method according to any one of claims 1 to 4 is implemented.

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