Pressing plate online multi-state monitoring method based on WAPI network

Abstract

The invention relates to the technical field of relay protection pressing plate monitoring, in particular to a WAPI network-based pressing plate online multi-state monitoring method, which is implemented on a monitoring system for monitoring the state of a pressing plate, the monitoring system comprises a monitoring platform, a WAPI wireless module, an MCU control module, an inclination angle switch A, an inclination angle switch B and an acquisition module, on the basis, the monitoring method comprises the steps that the inclination angle switch A and the inclination angle switch B are adopted to monitor the state of the pressing plate at the same time, the MCU control module receives switching signals of the inclination angle switch A and the inclination angle switch B and judges the state of the pressing plate, and after judgment is completed, the pressing plate is started. The MCU control module encrypts data of the states of the inclination angle switch A, the inclination angle switch B and the pressing plate through the WAPI wireless module and then sends the data to the acquisition module, and the acquisition module uploads the received data to a monitoring platform. According to the design, the two inclination angle switches are combined with the WAPI wireless module for monitoring, and high-safety and high-precision pressing plate monitoring is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of relay protection pressure plate monitoring, and in particular to a pressure plate online multi-state monitoring method based on a WAPI network. Background Art

[0002] In traditional power equipment monitoring, the status monitoring of the paddle pressure plate mainly relies on manual inspection or simple electrical signal feedback. This method has many limitations: manual monitoring is inefficient and can easily lead to misjudgment or missed detection due to operator fatigue or inattention; and traditional electrical signal feedback mostly relies on a single switch state (such as on / off) for judgment, which makes it difficult to achieve accurate identification of multiple angles and multiple states. In addition, although the wired monitoring solution can improve the level of automation, it relies on complex wiring projects, which not only has high installation costs but also is difficult to maintain, especially in the renovation of old sites, which is limited by space and wiring conditions. Although the wireless monitoring solution can get rid of wiring restrictions, its communication encryption capability is insufficient in high-security scenarios, and it is vulnerable to signal interference or data theft threats, making it difficult to meet the power industry's demand for high precision and high reliability. In addition, the wireless monitoring device is not good in environmental adaptability and is difficult to operate stably under complex conditions such as high temperature and strong electromagnetic interference. The existing technology cannot take into account security, accuracy and environmental adaptability, which limits its application in high-demand scenarios. Summary of the invention

[0003] In order to solve the technical problems of poor pressure plate monitoring accuracy and susceptibility to signal interference or data theft, the present invention provides an online multi-state monitoring method for pressure plates based on a WAPI network. Two tilt switches are used to monitor the pressure plate status at the same time, and WAPI technology is combined for encrypted wireless communication to achieve high-security and high-precision pressure plate monitoring.

[0004] The technical solution adopted by the present invention is to provide a method for online multi-state monitoring of a press plate based on a WAPI network, wherein the method is implemented on a monitoring system for monitoring the state of a press plate, wherein the monitoring system comprises a monitoring platform, a WAPI wireless module, an MCU control module, a tilt switch A, a tilt switch B and an acquisition module, wherein the input end of the MCU control module is data-connected with the tilt switch A and the tilt switch B, and the output end is data-connected with the WAPI wireless module, the input end of the acquisition module is data-connected with the output end of the WAPI wireless module, and the output end is data-connected with the monitoring platform;

[0005] On this basis, the monitoring method includes using the tilt switch A and the tilt switch B to monitor the state of the pressure plate at the same time;

[0006] The MCU control module receives the switch signals of the tilt switch A and the tilt switch B and judges the state of the pressure plate. Judgment 1: when the tilt switch A is in the OFF state and the tilt switch B is in the ON state, the pressure plate is judged to be in the engaged state; Judgment 2: when the tilt switch A is in the ON state and the tilt switch B is in the OFF state, the pressure plate is judged to be in the withdrawn state;

[0007] After the judgment is completed, the MCU control module encrypts the data of tilt switch A, tilt switch B, and pressure plate status and sends them to the acquisition module through the WAPI wireless module, and the acquisition module uploads the received data to the monitoring platform.

[0008] The pressing plate is in the engaged state when it is vertical, and in the withdrawn state when it is horizontal; the inclination switch A and the inclination switch B are in the OFF state when they are vertical, and in the ON state when they are horizontal.

[0009] The tilt switch A has the same tilt state as the pressing plate, and the tilt switch B has the opposite tilt state to the pressing plate.

[0010] The ON state of tilt switch A and tilt switch B is defined as 1, and the OFF state is defined as 0. When the MCU control module receives the signal of 0 or 1 from tilt switch A and tilt switch B, it determines that the pressure plate is in the engaged state. When the MCU control module receives the signal of 1 or 0 from tilt switch A and tilt switch B, it determines that the pressure plate is in the retracted state.

[0011] The beneficial effects of the present invention are:

[0012] 1. Adopt WAPI wireless module, through two-way identity authentication and dynamic encryption technology, to ensure the integrity and confidentiality of monitoring data during transmission. Compared with traditional wireless communication technology, WAPI wireless module has stronger anti-interference ability and information security, and is suitable for industrial environments with high security requirements.

[0013] 2. The threshold of the tilt switch can be flexibly configured according to actual needs, which can adapt to the mechanical structure requirements of different paddle pressure plates.

[0014] 3. Combine tilt switch A, tilt switch B and WAPI wireless module to realize multi-angle status monitoring and secure data transmission of the paddle-type pressure plate through close cooperation of hardware and software. The dual-switch monitoring method is adopted to avoid possible false alarms of a single switch, effectively improving the accuracy of the monitoring system's monitoring of the pressure plate status. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a flowchart of the present invention; DETAILED DESCRIPTION

[0016] like Figure 1As shown, the present invention provides a method for online multi-state monitoring of a press plate based on a WAPI network, the method is implemented on a monitoring system for monitoring the state of a press plate, the monitoring system comprises a monitoring platform, a WAPI wireless module, an MCU control module, a tilt switch A, a tilt switch B and an acquisition module, the input end of the MCU control module is data-connected with the tilt switch A and the tilt switch B, the output end is data-connected with the WAPI wireless module, the input end of the acquisition module is data-connected with the output end of the WAPI wireless module, and the output end is data-connected with the monitoring platform;

[0017] On this basis, the monitoring method includes using the tilt switch A and the tilt switch B to monitor the state of the pressure plate at the same time. After the tilt switch A and the tilt switch B are installed on the pressure plate, when the pressure plate is in the engaged state, the tilt switch A is in the OFF state and the tilt switch B is in the ON state. When the pressure plate is in the retracted state, the tilt switch A is in the ON state and the tilt switch B is in the OFF state.

[0018] The MCU control module receives the switch signals of the tilt switch A and the tilt switch B and judges the state of the pressure plate. Judgment 1: when the tilt switch A is in the OFF state and the tilt switch B is in the ON state, the pressure plate is judged to be in the engaged state; Judgment 2: when the tilt switch A is in the ON state and the tilt switch B is in the OFF state, the pressure plate is judged to be in the withdrawn state;

[0019] After the judgment is completed, the MCU control module encrypts the data of tilt switch A, tilt switch B, and pressure plate status and sends them to the acquisition module through the WAPI wireless module, and the acquisition module uploads the received data to the monitoring platform.

[0020] like Figure 1 As shown, the pressing plate is in the engaged state when it is vertical and in the withdrawn state when it is horizontal; the tilt switch A and the tilt switch B are in the OFF state when they are vertical and in the ON state when they are horizontal.

[0021] like Figure 1 As shown, the tilt switch A is the same as the tilt state of the pressure plate, that is, when the tilt switch A is vertical, the pressure plate is also vertical, and when the tilt switch A is horizontal, the pressure plate is also horizontal. The tilt switch B is opposite to the tilt state of the pressure plate, that is, when the tilt switch B is horizontal, the pressure plate is vertical, and when the tilt switch B is vertical, the pressure plate is horizontal.

[0022] like Figure 1 As shown, the ON state of the tilt switch A and the tilt switch B is defined as 1, and the OFF state is defined as 0. When the MCU control module receives the signal of 0 or 1 from the tilt switch A and the tilt switch B, it determines that the pressure plate is in the engaged state; when the MCU control module receives the signal of 1 or 0 from the tilt switch A and the tilt switch B, it determines that the pressure plate is in the retracted state.

[0023] The monitoring system of the present invention is mainly composed of a monitoring platform, a WAPI wireless module, an MCU control module, a tilt switch A, a tilt switch B and an acquisition module. The tilt switch A and the tilt switch B are installed together with the pressure plate and change synchronously with the inclination angle of the pressure plate. The MCU control module determines the current state of the pressure plate by the conduction state of the tilt switch A and the tilt switch B. The WAPI wireless module is responsible for encrypting the data transmitted by the MCU control module and sending it to the acquisition module. After receiving the data, the acquisition module further encapsulates the data and uploads it to the monitoring platform. The user can observe the data of the pressure plate status in real time through the monitoring platform. Through this multi-component collaborative design, a perfect combination of high-precision monitoring and high-security data transmission is achieved. It has the advantages of rapid deployment, convenient maintenance, high reliability and strong environmental adaptability, and can effectively improve the automation level and operational safety of pressure plate monitoring.

[0024] Tilt switch A and tilt switch B: The pressure plate is monitored by dual switches, and the on and off states of the switches are used to determine the retraction state of the pressure plate. Tilt switch A is OFF when the pressure plate is vertical and ON when it is horizontal. Tilt switch B is OFF when the pressure plate is horizontal and ON when it is vertical. The combined state of the dual switches can accurately distinguish the retraction state of the pressure plate, while avoiding false alarms that may be caused by a single switch. This design improves the credibility of the monitoring data and provides a reliable input source for the system's alarm logic.

[0025] MCU control module: The MCU control module is the data processing core, responsible for data processing and managing the communication of the WAPI wireless module. The MCU control module collects the switch signal for processing, encrypts it through the WAPI wireless module, packages it into a data frame that complies with the WAPI protocol and transmits it to the acquisition module. The MCU control module also supports intelligent switching of working modes, such as switching between the input and output status monitoring and maintenance and debugging modes. The module has the characteristics of low power consumption and high performance, and can meet the high reliability requirements of power system operation.

[0026] WAPI wireless module: The WAPI wireless module is used to achieve secure data transmission and is responsible for transmitting monitoring data to the acquisition module in real time through encrypted wireless signals. The WAPI wireless module integrates the encryption and authentication functions required by the WAPI protocol to ensure that the monitoring data is not tampered with or stolen during transmission. The module not only supports stable communication in complex environments, but also has low power consumption and anti-interference capabilities, and can adapt to various complex scenarios in the operation of power equipment.

[0027] Acquisition module: The front AC acquisition module is the hub of data transmission and is responsible for receiving encrypted data frames from the WAPI wireless module. The acquisition module further encapsulates and authenticates the data to ensure data integrity and security. The processed data is uploaded to the monitoring platform for centralized monitoring. At the same time, the acquisition module has a real-time alarm function. When an abnormal state is detected that lasts for more than a preset time, an alarm signal is triggered to notify maintenance personnel.

[0028] The present invention is based on the combination of high-precision tilt switch A, tilt switch B and WAPI wireless module, and realizes multi-angle status monitoring and secure data transmission of the paddle-type pressure plate through close cooperation of hardware and software, which comprehensively solves the defects of traditional monitoring methods in accuracy, safety and adaptability. The modular design, intelligent configuration and flexibility of the equipment further ensure the feasibility of the application of this method in a variety of complex scenarios, significantly improving the system performance and industry competitiveness.

[0029] The monitoring system for implementing the monitoring method of the present invention has the following specific operation process:

[0030] 1. Initialization phase: After the MCU control module is started, all key components are self-checked through the GPIO pins to ensure the normal operation of each component. The tilt sensor performs angle calibration according to the initial state of the pressure plate. The initial state of the pressure plate is the vertical input state, and the initial state is recorded as 0:1. The WAPI wireless module establishes a connection with the front acquisition module to complete network initialization and identity authentication.

[0031] 2. Throwing and retraction status monitoring stage: The tilt sensor monitors the tilt angle of the pressure plate in real time through the IMU. The dual tilt switch switches between on and off states according to the state of the pressure plate, and generates a binary state according to the state of the tilt switch.

[0032] The pressure plate input status: switch 1 is vertical and OFF, switch 2 is horizontal and ON, and the recording status is 0:1.

[0033] Platen retraction status: switch 1 is horizontal and ON, switch 2 is vertical and OFF, and the recording status is 1:0.

[0034] The monitoring data is collected in real time by the MCU control module and transmitted to the WAPI wireless module through the UART1 serial port for encryption processing, and then transmitted to the acquisition module to complete real-time monitoring and status update.

[0035] 3. Angle switching and setting stage: The tilt sensor supports flexible angle setting through the ADC interface of the MCU. Users can set the monitoring angle according to the structural requirements of the paddle pressure plate, such as 15°, 30°, 45°, etc. When the pressure plate reaches or exceeds the set angle threshold, the tilt switch A and the tilt switch B switch state, and the MCU control module updates the state data in real time and sends it to the acquisition module to ensure the accuracy of state recognition.

[0036] 4. Secure data transmission stage: All monitoring data is transmitted to the acquisition module in an encrypted manner through the WAPI wireless module using RF_2G4 or RF_5G radio frequency lines. The acquisition module decrypts and encapsulates the received data and completes security authentication through the WAPI protocol. The processed data is uploaded to the monitoring platform.

[0037] 5. Alarm and maintenance stage: When the system detects that the pressure plate is in the retracted state for more than the preset time, the acquisition module triggers an alarm signal and notifies the maintenance personnel through the monitoring platform. The maintenance personnel can view the data remotely or check the equipment on site through the debugging mode.

[0038] 6. Installation and adaptation stage: The system supports fast adaptation and installation of new and old stations. New station installation: The tilt sensor and WAPI wireless module adopt a compact design and use the central space of the paddle for seamless installation to reduce the impact on the original structure of the pressure plate. Old station reconstruction: The monitoring equipment is quickly fixed through the snap-on installation device, and the installation can be completed without modifying the original structure. The whole process is easy to operate, highly adaptable, and effectively improves construction efficiency.

[0039] Through the above operation process, the present invention realizes the full process automated management from monitoring, transmission to alarm, which not only ensures the accuracy and security of the monitoring data, but also improves the operation efficiency and maintenance convenience of the power system.

Claims

1. A method for online multi-state monitoring of a press plate based on a WAPI network, the method being implemented on a monitoring system, and characterized in that: The monitoring system is used for monitoring the state of the pressing plate, and includes a monitoring platform, a WAPI wireless module, an MCU control module, a tilt switch A, a tilt switch B and a collection module. The input end of the MCU control module is data-connected with the tilt switch A and the tilt switch B, and the output end is data-connected with the WAPI wireless module. The input end of the collection module is data-connected with the output end of the WAPI wireless module, and the output end is data-connected with the monitoring platform. On this basis, the monitoring method includes using the tilt switch A and the tilt switch B to monitor the state of the pressure plate at the same time; The MCU control module receives the switch signals of the tilt switch A and the tilt switch B and judges the state of the pressure plate. Judgment 1: when the tilt switch A is in the OFF state and the tilt switch B is in the ON state, the pressure plate is judged to be in the engaged state; Judgment 2: when the tilt switch A is in the ON state and the tilt switch B is in the OFF state, the pressure plate is judged to be in the withdrawn state; After the judgment is completed, the MCU control module encrypts the data of tilt switch A, tilt switch B, and pressure plate status and sends them to the acquisition module through the WAPI wireless module, and the acquisition module uploads the received data to the monitoring platform.

2. According to claim 1, a WAPI network-based press plate online multi-state monitoring method is characterized in that: The pressing plate is in the engaged state when it is vertical, and in the withdrawn state when it is horizontal. The inclination switch A and the inclination switch B are in the OFF state when they are vertical, and in the ON state when they are horizontal.

3. The method for online multi-state monitoring of a press plate based on a WAPI network according to claim 1 is characterized in that: The tilt switch A has the same tilt state as the pressing plate, and the tilt switch B has the opposite tilt state to the pressing plate.

4. The method for online multi-state monitoring of a press plate based on a WAPI network according to claim 2 is characterized in that: The ON state of tilt switch A and tilt switch B is defined as 1, and the OFF state is defined as 0. When the MCU control module receives the signal of 0 or 1 from tilt switch A and tilt switch B, it determines that the pressure plate is in the engaged state. When the MCU control module receives the signal of 1 or 0 from tilt switch A and tilt switch B, it determines that the pressure plate is in the retracted state.

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