Device and method for monitoring outlet pressing plate of protection device, electronic equipment and medium

Abstract

The invention provides an outlet pressing plate monitoring device and method of a protection device, electronic equipment and a medium, and belongs to the technical field of relay protection. Comprising an analog quantity acquisition module used for acquiring voltage information among a pressing plate upper end, a pressing plate lower end and a grounding end; the switching value signal acquisition module is used for acquiring on-off state information of the pressing plate; the control module is used for monitoring the input state of the outlet pressure plate according to the received voltage information and pressure plate state information; the display alarm module is used for displaying the monitoring result of the control module and giving an alarm for the abnormal condition of the state of the pressing plate; the power supply module is used for providing working voltage for the control module and the display module; the output ends of the analog quantity acquisition module and the switching value signal acquisition module are connected with the control module, and the output end of the control module is connected with the display module. Through on-line real-time monitoring, normal operation of equipment is guaranteed, state changes of the pressing plate are effectively monitored in time, and accidents can be prevented.

Description

Technical Field

[0001] The invention relates to the technical field of relay protection, and in particular to an outlet pressure plate monitoring device, a method, electronic equipment and a medium for a protection device. Background Art

[0002] The stable and reliable operation of relay protection devices in power systems is crucial to the entire power system. The reliable input and good contact of the connecting pieces and terminals as the tripping and closing outlet pressure plates play an important role in ensuring the normal operation of power equipment, maintaining reliable power supply, and improving stability and safety.

[0003] In the existing power system, the relay protection device pressure plate is often not properly monitored, resulting in system grid tripping and equipment failure when a fault occurs. The main reasons for such incidents are: 1. The staff is careless and may be negligent when switching on and off, resulting in switching on and off to the wrong state and not checking carefully. 2. The equipment is aging and has not been operated for a long time. The aging of the equipment leads to the failure of the relay protection device, such as poor contact and weak spring. This kind of failure is also the most difficult to find and monitor.

[0004] Therefore, there is an urgent need for an outlet pressure plate monitoring device for the protection device to monitor the status of the relay protection pressure plate. Summary of the invention

[0005] In order to solve the deficiencies of the above-mentioned prior art, the present invention provides an outlet pressure plate monitoring device, method, electronic equipment and medium of the protection device, which can accurately monitor the status position and contact status of the outlet pressure plate of the protection device, and protect against power system failure and equipment damage caused by incorrect pressure plate deployment of the protection device, device circuit failure, equipment aging, electromagnetic interference, etc.

[0006] The purpose of the present invention can be achieved by adopting the following technical solutions:

[0007] In a first aspect, the present invention provides an outlet pressure plate monitoring device for a protection device, comprising:

[0008] An analog quantity acquisition module is used to obtain voltage information between the upper end of the pressing plate, the lower end of the pressing plate and the grounding end;

[0009] The switch signal acquisition module is used to obtain the status information of the pressing plate;

[0010] The control module monitors the input status of the outlet pressure plate according to the received voltage information and pressure plate status information;

[0011] Display alarm module, used to display the monitoring results of the control module and alarm when the pressure plate is in an abnormal state;

[0012] A power module, used to provide operating voltage for the control module and the display module;

[0013] The output ends of the analog quantity acquisition module and the switch quantity signal acquisition module are connected to the control module, the output end of the control module is connected to the display module, and the output end of the power supply module is connected to the control module and the display module.

[0014] As a further embodiment of the present invention, the analog quantity acquisition module includes:

[0015] A first voltage acquisition module, used for acquiring a first voltage between an upper end of the pressing plate and a ground end;

[0016] A second voltage acquisition module, used for acquiring a second voltage between the lower end of the pressing plate and the ground end;

[0017] The third voltage acquisition module is used to acquire the third voltage between the upper end and the lower end of the pressing plate.

[0018] Furthermore, the information on the insertion and withdrawal status of the pressing plate includes two states: the pressing plate is inserted and the pressing plate is withdrawn.

[0019] As a further embodiment of the present invention, the control module includes:

[0020] A comparison module, used for comparing the first voltage, the second voltage and the third voltage with a preset voltage value to obtain a comparison result of whether the first voltage, the second voltage and the third voltage meet the requirements;

[0021] The judgment module judges whether the outlet pressure plate input state is valid according to the comparison result of the comparison module and the input and output state information of the pressure plate.

[0022] Furthermore, the preset voltage values ​​include a first voltage preset value, a second voltage preset value, a third voltage preset value, and a fourth voltage preset value; wherein the first voltage preset value and the second voltage preset value are 0-240V, the third voltage preset value is 0-1V, and the fourth voltage preset value is greater than 5V.

[0023] Furthermore, the judgment module judges whether the outlet pressure plate input state is valid according to the comparison result of the comparison module and the input and output state information of the pressure plate; specifically including:

[0024] When the control circuit monitoring of the protection device is normal, when the first voltage or the second voltage is within the first voltage preset value / the second voltage preset value and the third voltage is within the third voltage preset value range, it is judged that the outlet pressure plate input monitoring status is valid; otherwise, it is judged that the outlet pressure plate input status is invalid, that is, the pressure plate status is abnormal and an alarm is issued.

[0025] In a second aspect, the present invention provides an outlet pressure plate monitoring method for a protection device, comprising:

[0026] Obtaining voltage information between the upper end of the pressing plate, the lower end of the pressing plate and the ground end;

[0027] Get the insertion and withdrawal status information of the pressure plate;

[0028] Monitor the input status of the outlet pressure plate according to the received voltage information and pressure plate status information to obtain the monitoring result;

[0029] The monitoring results are displayed and an alarm is issued for abnormal pressure plate status.

[0030] As a further embodiment of the present invention, the step of monitoring the outlet pressure plate input state and obtaining the monitoring result according to the received voltage information and pressure plate state information includes:

[0031] Comparing the first voltage, the second voltage and the third voltage with a preset voltage value to obtain a comparison result of whether the first voltage, the second voltage and the third voltage meet the requirements;

[0032] According to the comparison result and the input and output status information of the pressure plate, it is judged whether the input state of the outlet pressure plate is valid; among them,

[0033] The method of judging whether the outlet pressure plate input state is valid according to the comparison result and the pressure plate input and output state information specifically includes:

[0034] When the control circuit monitoring of the protection device is normal, when the first voltage or the second voltage is within the first voltage preset value / the second voltage preset value and the third voltage is within the third voltage preset value range, it is judged that the outlet pressure plate input monitoring status is valid; otherwise, it is judged that the outlet pressure plate input status is invalid, that is, the pressure plate status is abnormal and an alarm is issued.

[0035] In a third aspect, the present invention provides an electronic device, characterized in that it comprises a processor, a memory, and a computer program stored in the memory and executable on the processor, wherein the computer program implements any of the above-mentioned steps of the protective pressure plate monitoring method when executed by the processor.

[0036] In a fourth aspect, the present invention provides a computer-readable storage medium, wherein the storage medium stores a computer program, and when the computer program is executed by a processor, the following process is implemented:

[0037] Obtaining voltage information between the upper end of the pressing plate, the lower end of the pressing plate and the ground end;

[0038] Get the status information of the pressure plate;

[0039] Monitor the input status of the outlet pressure plate according to the received voltage information and pressure plate status information to obtain the monitoring result;

[0040] The monitoring results are displayed and an alarm is issued for abnormal pressure plate status.

[0041] At least one of the above technical solutions adopted in the embodiments of the present application can achieve the following beneficial effects:

[0042] 1. The present invention obtains the voltage information between the upper end of the pressing plate, the lower end of the pressing plate and the ground terminal through the analog quantity acquisition module to judge the input and output status of the pressing plate, obtains the input and output status information of the pressing plate through the switch quantity signal acquisition module, and then compares and analyzes the input and output status of the pressing plate with the input and output status information of the pressing plate through the control module to judge whether the pressing plate is normal, and displays an alarm when the pressing plate state is abnormal;

[0043] 2. The present invention monitors the pressure plate by collecting pressure plate status information in real time online, so as to timely discover abnormal conditions of the pressure plate and perform timely maintenance and operation on the pressure plate to prevent switching accidents caused by abnormal pressure plate status after a fault occurs later. The present invention improves monitoring reliability and accuracy through online real-time monitoring to ensure the normal operation of the equipment.

[0044] 3. The outlet pressure plate monitoring device of the protection device provided by the present invention determines the actual position status of the pressure plate and the contact condition through the analog quantity acquisition voltage comparison method, thereby avoiding manual misjudgment through actual inspection of the pressure plate position, greatly improving the contact reliability, and issuing alarm information and sending message information in time through the device judgment, so as to monitor the status changes of the pressure plate in time and effectively, which is conducive to preventing accidents. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0046] Figure 1 This is a structural diagram of the outlet pressure plate monitoring device of the protection device proposed by the present invention;

[0047] Figure 2 This is a structural diagram of the outlet pressure plate in the state of being put into operation proposed by the present invention;

[0048] Figure 3 This is a structural diagram of the exit pressure plate in the present invention;

[0049] Figure 4 This is a structural diagram of the judgment module proposed by the present invention;

[0050] Figure 5A flow chart of the outlet pressure plate monitoring method of the protection device proposed by the present invention;

[0051] Figure 6 This is a schematic diagram of the structure of the electronic device proposed by the present invention. DETAILED DESCRIPTION

[0052] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. It should be understood that the specific embodiments described are only used to explain the present application and are not used to limit the present application.

[0053] It should be noted that the relative arrangement of components and steps, the numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise.

[0054] Those skilled in the art will appreciate that the terms "first", "second", etc. in the embodiments of the present invention are only used to distinguish different steps, devices, or modules, etc., and do not represent any specific technical meanings, nor do they represent the necessary logical order between them. For any component, data, or structure mentioned in the embodiments of the present invention, unless explicitly defined or given contrary revelation in the context, it can generally be understood as one or more. It should also be understood that the description of each embodiment of the present invention emphasizes the differences between the embodiments, and the same or similar aspects thereof can be referenced to each other, and for the sake of brevity, they will not be described one by one.

[0055] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.

[0056] The device, method, electronic device and medium for monitoring the outlet pressure plate of the protection device provided by the present invention can give an alarm when the pressure plate is mistakenly put in or withdrawn due to carelessness of the staff, aging of the equipment, poor contact, etc., so that the staff can correct the put-in or withdrawn state of the protection pressure plate, ensuring that the protection pressure plate can perform the protection action normally when a system failure occurs.

[0057] See also Figure 1 The present invention provides an outlet pressure plate monitoring device for a protection device, comprising:

[0058] The analog quantity acquisition module 101 is used to obtain the voltage information between the upper end of the pressing plate, the lower end of the pressing plate and the grounding end;

[0059] The switch signal acquisition module 102 is used to obtain the insertion and withdrawal status information of the pressure plate;

[0060] The control module 103 monitors the input state of the outlet pressure plate according to the received voltage information and pressure plate state information;

[0061] Display alarm module 104, used to display the monitoring results of the control module and alarm when the pressure plate is in an abnormal state;

[0062] The power module 105 is used to provide the operating voltage for the control module and the display module;

[0063] The output ends of the analog quantity acquisition module and the switch quantity signal acquisition module are connected to the control module, the output end of the control module is connected to the display module, and the output end of the power supply module is connected to the control module and the display module.

[0064] In an embodiment of the present invention, an analog quantity acquisition module obtains voltage information between the upper end of the pressure plate, the lower end of the pressure plate and the ground terminal to determine the input and output status of the pressure plate, and obtains the input and output status information of the pressure plate through the switch quantity signal acquisition module. Then, the control module compares and analyzes the input and output status of the pressure plate with the input and output status information of the pressure plate to determine whether the pressure plate is normal. When the pressure plate status is abnormal, an alarm is displayed. The present invention monitors the pressure plate by collecting the pressure plate status information online in real time, and can promptly detect abnormal conditions of the pressure plate, perform timely maintenance and operation on the pressure plate, to prevent the occurrence of switching accidents due to abnormal pressure plate status after a later fault occurs. The present invention improves monitoring reliability and accuracy through online real-time monitoring to ensure the normal operation of the equipment.

[0065] In the embodiment of the present invention, the analog quantity acquisition module supports 4-channel analog quantity acquisition, and respectively collects the DC voltage acquisition data of the upper end of the outlet pressure plate to the ground, the DC voltage acquisition data of the lower end to the ground, and the upper and lower end voltage acquisition data, and sends the collected data to the STM32 module for processing through the acquisition module.

[0066] The switch signal acquisition module supports 4-way switch signal acquisition, connects the normal contacts of the circuit breaker control loop monitoring loop and the physical input node of the pressure plate, monitors the real-time position of the outlet pressure plate in real time through the switch state, and sends the data to the STM32 module for processing. The control module uses the STM32H753 chip with Cortex-M7 core as the main controller. The STM32H753 chip has an ultra-high-performance MCU and is advanced in system design. Its operating main frequency can reach 400MHz, supports floating-point processing, and has rich interfaces to meet the requirements of data acquisition and storage. STM32 is used to control, display and manage data. It communicates with the LCD screen through the serial port in a private protocol, uploads data to the LCD screen, and uploads data to the host computer through the Ethernet port, which can realize high-speed data acquisition and multiple applications. The display module is a 1-inch LCD screen. The power module is the working power supply of the device and supports DC12V power supply.

[0067] In the embodiment of the present invention, the analog quantity acquisition module 101 includes:

[0068] A first voltage acquisition module 111, used for acquiring a first voltage between an upper end of the pressing plate and a ground end;

[0069] A second voltage acquisition module 112, used for acquiring a second voltage between the lower end of the pressing plate and the ground end;

[0070] The third voltage acquisition module 113 is used to acquire the third voltage between the upper end and the lower end of the pressing plate.

[0071] The first voltage acquisition module, the second voltage acquisition module and the third voltage acquisition module are voltage transformers, which are respectively arranged in parallel between the upper end of the pressure plate and the ground end, the lower end of the pressure plate and the ground end, and the upper end of the pressure plate and the lower end of the pressure plate. The actual insertion and retraction status of the pressure plate is judged by collecting the voltages at different positions of the pressure plate.

[0072] In an embodiment of the present invention, the switch signal acquisition module is used to collect the status information of the pressure plate, that is, the preset investment and withdrawal state that the pressure plate should be in when the equipment is in operation, by comparing and judging the preset investment and withdrawal state of the pressure plate with the actual investment and withdrawal state of the pressure plate collected in real time online.

[0073] In the embodiment of the present invention, the control module 103 includes:

[0074] A comparison module 131 is used to compare the first voltage, the second voltage and the third voltage with a preset voltage value to obtain a comparison result of whether the first voltage, the second voltage and the third voltage meet the requirements;

[0075] The judgment module 132 judges whether the outlet pressure plate input state is valid according to the comparison result of the comparison module and the input and output state information of the pressure plate.

[0076] Among them, the preset voltage values ​​include a first voltage preset value, a second voltage preset value, a third voltage preset value, and a fourth voltage preset value; among them, the first voltage preset value and the second voltage preset value are 0-240V, the third voltage preset value is 0-1V, and the fourth voltage preset value is greater than 5V.

[0077] See also Figure 2 , when the protection device operates normally, when the pressure plate connecting piece is put into use, the DC voltage is monitored: the voltage between the upper end 1 of the pressure plate and the ground is U1 (range: 0-240V); the voltage between the lower end 2 of the pressure plate and the ground is U2 (range: 0-240V); the voltage difference between the upper end 1 of the pressure plate and the lower end 2 of the pressure plate is U3 (range: 0-1V);

[0078] See also Figure 3 When the protection device operates normally, when the pressure plate connecting piece is withdrawn or has poor contact, monitor the DC voltage: the voltage between the upper end 1 of the pressure plate and the ground U1 (range: 0-240V); the voltage between the lower end 2 of the pressure plate and the ground U2 (range: 0-240V); the voltage difference between the upper end 1 of the pressure plate and the lower end 2 of the pressure plate U3 (range: greater than 5V); compare the measured data of U1, U2, and U3, combine the control loop monitoring and the physical position of the pressure plate for logical calculation, and complete real-time online upload.

[0079] See also Figure 4 The judgment module judges whether the outlet pressure plate input state is valid according to the comparison result of the comparison module and the input and output state information of the pressure plate; specifically includes:

[0080] When the control circuit monitoring of the protection device is normal, when the first voltage or the second voltage is within the first voltage preset value / the second voltage preset value and the third voltage is within the third voltage preset value range, it is judged that the outlet pressure plate input monitoring status is valid; otherwise, it is judged that the outlet pressure plate input status is invalid, that is, the pressure plate status is abnormal and an alarm is issued.

[0081] The working principle of this device is: the first step is to monitor the analog quantity acquisition module of the online monitoring device and the U1 / U2 / U3 voltage ends of the pressure plate to be tested on site to collect data. The second step is to connect the switch signal acquisition module to the auxiliary contact of the normal monitoring of the protection device control circuit. The third step is to power on the device and enter the working state. The third step is that when the analog quantity and input quantity monitoring of the pressure plate to be tested meet the pressure plate input monitoring criteria, the green light is on, the device operates normally, and at the same time, it will drive the intermediate relay to attract, the normally open node is closed, the normally closed node is opened, and the pressure plate input information is sent through the node; when the analog quantity and input quantity monitoring of the monitored pressure plate do not meet the pressure plate input monitoring criteria, the device lights up the red light and sends an alarm sound. At the same time, the intermediate relay returns, and the pressure plate return information is sent through the node, indicating that the pressure plate is exited.

[0082] The outlet pressure plate monitoring device of the protection device provided by the present invention determines the actual position status and contact condition of the pressure plate through the analog quantity acquisition voltage comparison method, thereby avoiding manual misjudgment through actual inspection of the pressure plate position, greatly improving the contact reliability, and timely issuing alarm information and sending message information through the device judgment, so as to timely and effectively monitor the status changes of the pressure plate, which is conducive to preventing accidents.

[0083] See also Figure 5 , a method for monitoring an outlet pressure plate of a protection device, comprising:

[0084] Step 201, obtaining voltage information between the upper end of the pressing plate, the lower end of the pressing plate and the ground end;

[0085] Step 202, obtaining the insertion and withdrawal status information of the pressing plate;

[0086] Step 203, monitoring the outlet pressure plate input state according to the received voltage information and pressure plate state information to obtain a monitoring result;

[0087] Step 204, displaying the monitoring results and giving an alarm for abnormal conditions of the pressure plate status.

[0088] In step 201, voltage information between the upper end of the pressing plate, the lower end of the pressing plate and the grounding end is obtained; including:

[0089] collecting a first voltage between an upper end of the pressing plate and a ground end;

[0090] collecting a second voltage between the lower end of the pressing plate and the ground end;

[0091] A third voltage between the upper end of the pressing plate and the lower end of the pressing plate is collected.

[0092] In step 203, the outlet pressure plate input state is monitored to obtain monitoring results according to the received voltage information and pressure plate state information, including:

[0093] Comparing the first voltage, the second voltage and the third voltage with a preset voltage value to obtain a comparison result of whether the first voltage, the second voltage and the third voltage meet the requirements;

[0094] According to the comparison result and the input and output status information of the pressure plate, it is judged whether the input state of the outlet pressure plate is valid; among them,

[0095] According to the comparison result and the input and output status information of the pressure plate, it is judged whether the input status of the outlet pressure plate is valid; specifically including:

[0096] When the control circuit monitoring of the protection device is normal, when the first voltage or the second voltage is within the first voltage preset value / the second voltage preset value and the third voltage is within the third voltage preset value range, it is judged that the outlet pressure plate input monitoring status is valid; otherwise, it is judged that the outlet pressure plate input status is invalid, that is, the pressure plate status is abnormal and an alarm is issued.

[0097] The above describes specific embodiments of the present application. Other embodiments are within the scope of the appended claims. In some cases, the actions or steps recorded in the claims can be performed in an order different from that in the embodiments and still achieve the desired results. In addition, the processes depicted in the accompanying drawings do not necessarily require the specific order or continuous order shown to achieve the desired results. In some embodiments, multitasking and parallel processing are also possible or may be advantageous.

[0098] Figure 6 This is a schematic diagram of the structure of the electronic device provided in the embodiment of the present application. Figure 6 At the hardware level, the electronic device includes a processor, and optionally also includes an internal bus, a network interface, and a memory. The memory may include a memory, such as a high-speed random access memory (RAM), and may also include a non-volatile memory (non-volatile memory), such as at least one disk storage. Of course, the electronic device may also include hardware required for other services.

[0099] The processor, network interface and memory can be interconnected through an internal bus, which can be an ISA (Industry Standard Architecture) bus, a PCI (Peripheral Component Interconnect) bus or an EISA (Extended Industry Standard Architecture) bus, etc. The bus can be divided into an address bus, a data bus, a control bus, etc. For ease of representation, Figure 6 Only one bidirectional arrow is used in the diagram, but this does not mean that there is only one bus or only one type of bus.

[0100] The memory is used to store the program. Specifically, the program may include a program code, and the program code includes a computer operation instruction. The memory may include a memory and a non-volatile memory, and provides instructions and data to the processor.

[0101] The processor reads the corresponding computer program from the non-volatile memory into the memory and then runs it, forming a protective pressure plate monitoring device at the logical level. The processor executes the program stored in the memory and is specifically used to perform the following operations:

[0102] Obtaining voltage information between the upper end of the pressing plate, the lower end of the pressing plate and the ground end;

[0103] Get the status information of the pressure plate;

[0104] Monitor the input status of the outlet pressure plate according to the received voltage information and pressure plate status information to obtain the monitoring result;

[0105] The monitoring results are displayed and an alarm is issued for abnormal pressure plate status.

[0106] The above application Figure 6 The method performed by the outlet pressure plate monitoring device of the protection device disclosed in the illustrated embodiment can be applied to a processor or implemented by a processor. The processor may be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the above method can be completed by an integrated logic circuit of hardware in the processor or an instruction in the form of software. The above processor can be a general-purpose processor, including a central processing unit (CPU), a network processor (NP), etc.; it can also be a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA) or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components. The methods, steps and logic block diagrams disclosed in one or more embodiments of the present application can be implemented or executed. The general-purpose processor can be a microprocessor or the processor can also be any conventional processor, etc. The steps of the method disclosed in conjunction with one or more embodiments of the present application can be directly embodied as a hardware decoding processor for execution, or can be executed by a combination of hardware and software modules in the decoding processor. The software module can be located in a mature storage medium in the field such as random access memory, flash memory, read-only memory, programmable read-only memory or electrically erasable programmable memory, register, etc. The storage medium is located in the memory, and the processor reads the information in the memory and completes the steps of the above method in combination with its hardware.

[0107] Of course, in addition to software implementation methods, the electronic device of the present application does not exclude other implementation methods, such as logic devices or a combination of software and hardware, etc. That is to say, the execution subject of the following processing flow is not limited to each logic unit, but can also be hardware or logic devices.

[0108] The embodiment of the present application also provides a computer-readable storage medium, which stores one or more programs, wherein the one or more programs include instructions, which, when executed by a portable electronic device including a plurality of application programs, enable the portable electronic device to execute Figure 5 The method of the embodiment shown is specifically used to perform the following operations:

[0109] Obtaining voltage information between the upper end of the pressing plate, the lower end of the pressing plate and the ground end;

[0110] Get the status information of the pressure plate;

[0111] Monitor the input status of the outlet pressure plate according to the received voltage information and pressure plate status information to obtain the monitoring result;

[0112] The monitoring results are displayed and an alarm is issued for abnormal pressure plate status.

[0113] The above description has been given for the purpose of illustration and description. In addition, this description is not intended to limit the embodiments of the present invention to the forms disclosed herein. Although a number of example aspects and embodiments have been discussed above, those skilled in the art will recognize certain variations, modifications, changes, additions and sub-combinations thereof.

[0114] This application is a priority request for the previously submitted patent number: 202410284971.7; Patent name: Outlet pressure plate monitoring device, method, electronic equipment and medium of protective device; Applicant: State Grid Xinjiang Electric Power Co., Ltd. Bortala Power Supply Company.

Claims

1. The outlet pressure plate monitoring device of the protection device is characterized in that: include: An analog quantity acquisition module is used to obtain voltage information between the upper end of the pressing plate, the lower end of the pressing plate and the grounding end; The switch signal acquisition module is used to obtain the status information of the pressing plate; The control module monitors the input status of the outlet pressure plate according to the received voltage information and pressure plate status information; Display alarm module, used to display the monitoring results of the control module and alarm when the pressure plate is in an abnormal state; A power module, used to provide operating voltage for the control module and the display module; The output ends of the analog quantity acquisition module and the switch quantity signal acquisition module are connected to the control module, the output end of the control module is connected to the display module, and the output end of the power supply module is connected to the control module and the display module.

2. The outlet pressure plate monitoring device of the protection device according to claim 1 is characterized in that: The analog quantity acquisition module comprises: A first voltage acquisition module, used for acquiring a first voltage between an upper end of the pressing plate and a ground end; A second voltage acquisition module, used for acquiring a second voltage between the lower end of the pressing plate and the ground end; The third voltage acquisition module is used to acquire the third voltage between the upper end and the lower end of the pressing plate.

3. The outlet pressure plate monitoring device of the protection device according to claim 1 is characterized in that: The push plate insertion and retraction status information includes two states: push plate insertion and push plate retraction.

4. The outlet pressure plate monitoring device of the protection device according to claim 1, characterized in that: The control module comprises: A comparison module, used for comparing the first voltage, the second voltage and the third voltage with a preset voltage value to obtain a comparison result of whether the first voltage, the second voltage and the third voltage meet the requirements; The judgment module judges whether the outlet pressure plate input state is valid according to the comparison result of the comparison module and the input and output state information of the pressure plate.

5. The outlet pressure plate monitoring device of the protection device according to claim 4, characterized in that: The preset voltage values ​​include a first preset voltage value, a second preset voltage value, a third preset voltage value, and a fourth preset voltage value; The first voltage preset value and the second voltage preset value are 0-240V, the third voltage preset value is 0-1V, and the fourth voltage preset value is greater than 5V.

6. The outlet pressure plate monitoring device of the protection device according to claim 4, characterized in that: The judging module judges whether the outlet pressure plate input state is valid according to the comparison result of the comparing module and the input and output state information of the pressure plate; specifically includes: When the control circuit monitoring of the protection device is normal, when the first voltage or the second voltage is within the first voltage preset value / the second voltage preset value and the third voltage is within the third voltage preset value range, it is judged that the outlet pressure plate input monitoring status is valid; otherwise, it is judged that the outlet pressure plate input status is invalid, that is, the pressure plate status is abnormal and an alarm is issued.

7. A method for monitoring the outlet pressure plate of a protective device, comprising: Obtaining voltage information between the upper end of the pressing plate, the lower end of the pressing plate and the ground end; Get the status information of the pressure plate; Monitor the input status of the outlet pressure plate according to the received voltage information and pressure plate status information to obtain the monitoring result; The monitoring results are displayed and an alarm is issued for abnormal pressure plate status.

8. The method for monitoring the outlet pressure plate of the protection device according to claim 7, characterized in that: The step of monitoring the outlet pressure plate input state and obtaining the monitoring result according to the received voltage information and pressure plate state information includes: Comparing the first voltage, the second voltage and the third voltage with a preset voltage value to obtain a comparison result of whether the first voltage, the second voltage and the third voltage meet the requirements; According to the comparison result and the input and output status information of the pressure plate, it is judged whether the input state of the outlet pressure plate is valid; among them, The method of judging whether the outlet pressure plate input state is valid according to the comparison result and the pressure plate input and output state information specifically includes: When the control circuit monitoring of the protection device is normal, when the first voltage or the second voltage is within the first voltage preset value / the second voltage preset value and the third voltage is within the third voltage preset value range, it is judged that the outlet pressure plate input monitoring status is valid; otherwise, it is judged that the outlet pressure plate input status is invalid, that is, the pressure plate status is abnormal and an alarm is issued.

9. An electronic device, characterized in that: It comprises a processor, a memory and a computer program stored in the memory and executable on the processor, wherein the computer program, when executed by the processor, implements the steps of the protective pressure plate monitoring method as described in any one of claims 7 to 8.

10. A computer-readable storage medium, wherein a computer program is stored in the storage medium, and when the computer program is executed by a processor, the following process is implemented: Obtaining voltage information between the upper end of the pressing plate, the lower end of the pressing plate and the ground end; Get the insertion and withdrawal status information of the pressure plate; Monitor the input status of the outlet pressure plate according to the received voltage information and pressure plate status information to obtain the monitoring result; The monitoring results are displayed and an alarm is issued for abnormal pressure plate status.

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