Radio frequency identification (RFID) pressing plate state on-line monitoring device based on magnetic control switch

Abstract

The utility model relates to the technical field of electric power on-line monitoring, in particular to an RFID pressing plate state on-line monitoring device based on a magnetic control switch, which comprises a pressing plate, a first supporting column and a second supporting column, the first supporting column and the second supporting column are oppositely arranged, and the pressing plate is arranged between the first supporting column and the second supporting column. A monitoring device is additionally arranged at the position, corresponding to the pressing plate, between the first supporting column and the second supporting column, the monitoring device comprises a magnetic control switch, a signal generator, an RFID antenna module and an alarm module, the signal generator and the RFID antenna module are connected with the two ends of the magnetic control switch respectively, the alarm module is connected with the output end of the RFID antenna module, and the output end of the signal generator is connected with one end of the magnetic control switch; the input end of the RFID antenna module is connected with the other end of the magnetic control switch, and the induction end of the magnetic control switch corresponds to the pressing plate. According to the design, a disconnectable RFID on-line monitoring device is adopted, and real-time monitoring of the state of the pressing plate is achieved.

Description

Technical Field

[0001] This utility model relates to the field of power online monitoring technology, specifically to an RFID pressure plate status online monitoring device based on a magnetic switch. Background Technology

[0002] In online monitoring scenarios of relay protection systems, the status monitoring of relay plates is crucial for the safe and stable operation of power grid equipment. During routine maintenance, relay plates are typically responsible for enabling or disabling control signals and fault handling signals of the relay protection system. However, traditional relay plate status monitoring methods mainly rely on manual inspections and periodic checks, making it difficult to achieve accurate real-time monitoring and feedback of the relay plate's status. If the relay plate status is abnormal during a fault or emergency, the relay protection device may fail to respond promptly, affecting system operation and potentially causing equipment damage or safety accidents.

[0003] While conventional RFID offers certain advantages in equipment identification and tracking, it also has significant limitations in monitoring the condition of pressure plates. Conventional RFID cannot continuously and in real-time detect changes in the condition of pressure plates, especially in online monitoring scenarios requiring high-frequency, real-time monitoring. Its response capability and intelligence level are low, making it difficult to issue alarms and take necessary measures in a timely manner when abnormal conditions occur. This makes it difficult to effectively ensure the reliability and safety of pressure plate conditions in online monitoring of relay protection. Utility Model Content

[0004] To address the technical problem that ordinary RFID cannot monitor the status of pressure plates, this invention provides an online monitoring device for the status of RFID pressure plates based on a magnetic switch. It employs a disconnectable online RFID monitoring device to achieve real-time monitoring of the pressure plate status.

[0005] The technical solution adopted by this utility model is to provide an online monitoring device for the status of an RFID pressure plate based on a magnetic switch, including a pressure plate, a first support column and a second support column arranged opposite to each other, the pressure plate being disposed between the first support column and the second support column, and a monitoring device being added between the first support column and the second support column and at a position corresponding to the pressure plate. The monitoring device includes a magnetic switch, a signal generator and an RFID antenna module respectively connected to both ends of the magnetic switch, and an alarm module connected to the output end of the RFID antenna module. The output end of the signal generator is connected to one end of the magnetic switch, the input end of the RFID antenna module is connected to the other end of the magnetic switch, and the sensing end of the magnetic switch corresponds to the pressure plate.

[0006] The alarm module includes a data acquisition unit, a data processing unit connected to the output of the data acquisition unit, and an alarm unit connected to the data processing unit. The input of the data acquisition unit is connected to the output of the RFID antenna module. The RFID antenna module is a passive RFID antenna module or an active RFID antenna module.

[0007] It also includes a first screw and a second screw respectively disposed on the upper ends of the first support and the second support, and a first nut and a second nut respectively disposed on the first screw and the second screw. One end of the pressure plate is provided with a sleeve hole and one side of the other end of the pressure plate is provided with a slot. One end of the pressure plate is fitted onto the first screw through the sleeve hole and is located between the first nut and the first support. The other end of the pressure plate is engaged with the second screw through the slot and is located between the second nut and the second support.

[0008] A handle is provided at the upper end of the pressure plate.

[0009] Two washers are provided on the first stud between the first support column and the first nut, and on the second stud between the second support column and the second nut, with the two ends of the pressure plate located between the washers respectively.

[0010] An online monitoring device for the status of an RFID pressure plate based on a magnetic switch includes a pressure plate, a support base located below the pressure plate, two insert rods spaced apart at the lower end of the pressure plate, two first sockets spaced apart on the support base, and wiring terminals respectively located at the lower end of the support base and corresponding to the first sockets. The pressure plate is inserted into the first sockets of the support base by means of the insert rods and abuts against the wiring terminals. A monitoring device is added to one side of the support base. The monitoring device includes a magnetic switch, a signal generator and an RFID antenna module respectively connected to both ends of the magnetic switch, and an alarm module connected to the output end of the RFID antenna module. The output end of the signal generator is connected to one end of the magnetic switch, and the input end of the RFID antenna module is connected to the other end of the magnetic switch. The sensing end of the magnetic switch faces upward.

[0011] The alarm module includes a data acquisition unit, a data processing unit connected to the output of the data acquisition unit, and an alarm unit connected to the data processing unit. The input of the data acquisition unit is connected to the output of the RFID antenna module. The RFID antenna module is a passive RFID antenna module or an active RFID antenna module.

[0012] It also includes positioning seats on both sides of the support base and second insertion holes respectively on the positioning seats, the second insertion holes corresponding to the two insertion rods respectively.

[0013] It also includes a positioning post located at the lower end of the middle part of the pressure plate and a positioning hole located in the middle of the support base and corresponding to the positioning post, wherein the length of the positioning post is greater than that of the insertion rod.

[0014] The beneficial effects of this invention are that it provides an online monitoring device for the status of an RFID pressure plate based on a magnetic switch. The device collects the normal operating status of the pressure plate using the magnetic switch as baseline information, records and compares the current status in real time, and uploads the status information to the monitoring system in real time when the pressure plate changes from closed to open or from open to closed. The system then determines whether to trigger an alarm and notifies relevant personnel. This not only improves the online monitoring level of the relay protection system, ensuring the pressure plate is under reliable monitoring, but also enables timely response in emergencies, effectively protecting the safety of equipment and operators. Attached Figure Description

[0015] Figure 1 This is a system block diagram of this utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the pressure plate in the closed state of Embodiment 1 of the present invention;

[0017] Figure 3 This is a schematic diagram of the structure of the pressure plate in the disconnected state of Embodiment 1 of the present invention;

[0018] Figure 4 This is a schematic diagram of the structure of the pressure plate in the closed state of Embodiment 2 of the present invention;

[0019] Figure 5 This is a schematic diagram of the structure of the pressure plate in the open state of Embodiment 2 of the present invention;

[0020] In the attached diagram, 1 is the pressure plate, 2 is the first support column, 3 is the second support column, 4 is the monitoring device, 5 is the first nut, 6 is the second nut, 7 is the slot, 8 is the handle, 9 is the washer, 10 is the support base, 11 is the insertion rod, 12 is the first insertion hole, 13 is the wiring terminal, 14 is the positioning base, 15 is the second insertion hole, and 16 is the positioning post. Detailed Implementation

[0021] Example 1: As Figure 1-3 As shown, an online monitoring device for the status of an RFID pressure plate based on a magnetic switch includes a pressure plate 1, a first support column 2 and a second support column 3 arranged opposite to each other. The pressure plate 1 is positioned between the first support column 2 and the second support column 3. A monitoring device 4 is added between the first support column 2 and the second support column 3 at a position corresponding to the pressure plate 1. The monitoring device 4 includes a magnetic switch, a signal generator and an RFID antenna module respectively connected to both ends of the magnetic switch, and an alarm module connected to the output end of the RFID antenna module. The output end of the signal generator is connected to one end of the magnetic switch, the input end of the RFID antenna module is connected to the other end of the magnetic switch, and the sensing end of the magnetic switch corresponds to the pressure plate 1.

[0022] like Figure 1-3As shown, the alarm module includes a data acquisition unit, a data processing unit connected to the output of the data acquisition unit, and an alarm unit connected to the data processing unit. The input of the data acquisition unit is connected to the output of the RFID antenna module. The RFID antenna module is a passive RFID antenna module or an active RFID antenna module.

[0023] like Figure 1-3 As shown, it also includes a first screw and a second screw respectively disposed on the upper ends of the first support column 2 and the second support column 3, and a first nut 5 and a second nut 6 respectively disposed on the first screw and the second screw. One end of the pressure plate 1 is provided with a sleeve hole and one side of the other end of the pressure plate 1 is provided with a slot 7. One end of the pressure plate 1 is fitted onto the first screw through the sleeve hole and is located between the first nut 5 and the first support column 2. The other end of the pressure plate 1 is engaged with the second screw through the slot 7 and is located between the second nut 6 and the second support column 3.

[0024] like Figure 1-3 As shown, a handle 8 is provided at the upper end of the pressure plate 1. The handle 8 allows for convenient manual operation.

[0025] like Figure 1-3 As shown, two washers 9 are provided on the first stud between the first support column 2 and the first nut 5, and on the second stud between the second support column 3 and the second nut 6. The two ends of the pressure plate 1 are respectively located between the washers 9. The washers 9 fit better with the pressure plate 1, resulting in more stable locking.

[0026] This invention is mainly applied in online monitoring systems. When used with an online monitoring system, the initial state (closed or open) of pressure plate 1 is first recorded as a baseline state, and this state data is stored in the online monitoring system. Simultaneously, a signal generator is used to define RFID tag signals, and an RFID antenna module is used to receive and transmit RFID tag signals, enabling the online monitoring system to identify which pressure plate 1 is malfunctioning. The online monitoring system can periodically collect and update the normal operating status of pressure plate 1, ensuring the accuracy and effectiveness of the baseline information.

[0027] The monitoring device 4 can monitor the closed or open state of the pressure plate 1 in real time. It collects the current state data of the pressure plate 1 through a magnetic switch to ensure real-time monitoring of the state changes of the pressure plate 1 during operation. Each collected state data is compared with the baseline state to detect any abnormalities.

[0028] When the monitoring device 4 detects a change in the state of the pressure plate 1, i.e., when the pressure plate 1 is displaced, such as changing from closed to open or from open to closed, the monitoring device 4 will immediately identify the change and record the specific time and status information of the state switch. This change information will be marked as "abnormal" or "normal" to distinguish whether an alarm is required.

[0029] If the status of pressure plate 1 changes abnormally, such as disconnection occurring at an unplanned time or during operation, monitoring device 4 will immediately trigger an alarm and send the alarm information to the control center of the online monitoring system. The alarm information includes detailed data such as the current status of pressure plate 1, the time of change, and the device location, so that staff can respond and troubleshoot quickly.

[0030] The monitoring device 4 mainly consists of a signal generator, an RFID antenna module, a magnetic switch, and an alarm module.

[0031] RFID antenna module: The signal generator generates RFID tag signals, and the RFID antenna module is responsible for receiving and sending RFID tag signals.

[0032] Magnetic switch: The pressure plate 1 has a magnetic block or is made of magnetic material. When the pressure plate 1 moves, it can be sensed by the magnetic switch. The magnetic switch is integrated with the signal generator and RFID antenna module. When the magnetic switch detects that the pressure plate 1 is in a normal state, it connects the signal generator and the RFID antenna module. The RFID antenna module continuously sends RFID signals to the online monitoring system. When the magnetic switch detects a change in the state of the pressure plate 1, it disconnects the signal generator and the RFID antenna module. The RFID signal sent by the RFID antenna module to the online monitoring system is interrupted, and an alarm is triggered.

[0033] Alarm Module: The alarm module immediately triggers an alarm when the RFID antenna module signal is interrupted, notifying the operator and simultaneously recording the event in the system log. The alarm module can issue warnings through audible and visual alarms or push notifications, enabling immediate detection of abnormal operations.

[0034] Example 1 illustrates the application of the monitoring device 4 in a paddle-type pressure plate 1. One end of the pressure plate 1 is rotatably connected to the first screw, and the other end of the pressure plate 1 is engaged with the second screw via a slot 7. The outer diameters of the first and second screws are smaller than those of the first support column 2, the second support column 3, the first nut 5, and the second nut 6. The first nut 5 and the second nut 6 are tightened to clamp the two ends of the pressure plate 1 with the first support column 2 and the second support column 3, thereby locking the pressure plate 1. When it is necessary to disconnect the pressure plate 1, the first nut 5 and the second nut 6 are manually loosened, and the end of the pressure plate 1 with the slot 7 is manually pushed outward until it is disengaged from the second support column 4, thus completing the disconnection. The position of the pressure plate 1 is monitored by the monitoring device 4. When the pressure plate 1 is moved by external force, the magnetic switch on the monitoring device 4 detects the change in the position of the pressure plate 1 and triggers an alarm.

[0035] Example 2: As Figure 1 and Figure 4-5As shown, an online monitoring device for the status of an RFID pressure plate based on a magnetic switch includes a pressure plate 1, a support base 10 located below the pressure plate 1, two insert rods 11 spaced apart at the lower end of the pressure plate 1, two first insertion holes 12 spaced apart on the support base 10, and wiring terminals 13 respectively located at the lower end of the support base 10 and corresponding to the first insertion holes 12. The pressure plate 1 is inserted into the first insertion holes 12 of the support base 10 by means of the insert rods 11 and abuts against the wiring terminals 13. A monitoring device 4 is added to one side of the support base 10. The monitoring device 4 includes a magnetic switch, a signal generator and an RFID antenna module respectively connected to both ends of the magnetic switch, and an alarm module connected to the output end of the RFID antenna module. The output end of the signal generator is connected to one end of the magnetic switch, and the input end of the RFID antenna module is connected to the other end of the magnetic switch. The sensing end of the magnetic switch faces upward.

[0036] like Figure 1 and Figure 4-5 As shown, the alarm module includes a data acquisition unit, a data processing unit connected to the output of the data acquisition unit, and an alarm unit connected to the data processing unit. The input of the data acquisition unit is connected to the output of the RFID antenna module. The RFID antenna module is a passive RFID antenna module or an active RFID antenna module.

[0037] like Figure 1 and Figure 4-5 As shown, it also includes positioning seats 14 disposed on both sides of the support base 10, and second insertion holes 15 respectively disposed on the positioning seats 14, the second insertion holes 15 being connected to the two insertion rods 11 respectively. The positioning seats 14 and the second insertion holes 15 can facilitate stable placement of the pressure plate 1 when the pressure plate 1 is in the disconnected state.

[0038] like Figure 1 and Figure 4-5 As shown, it also includes a positioning post 16 located at the lower end of the middle part of the pressure plate 1, and a positioning hole located in the middle of the support base 10 and corresponding to the positioning post 16. The length of the positioning post 16 is greater than that of the insertion rod 11. When the pressure plate 1 is lifted and the insertion rod 11 is switched between the first insertion hole 12 and the second insertion hole 15, the positioning post 16 and the positioning hole cooperate to position the rotation of the pressure plate 1, making the operation more convenient.

[0039] Example 2 illustrates the application of the monitoring device 4 in a pull-out pressure plate 1. When the pull-out pressure plate 1 is in use, it is in a plugged-in state through the insertion rod 11 and the first insertion hole 12 on the support base 10. The insertion rod 11 abuts against the terminal 13, completing the closure. The pressure plate 1 is manually lifted upwards, causing the insertion rod 11 to be pulled out of the first insertion hole 12 and inserted into the second insertion hole 15 of the positioning base 14. The insertion rod 11 is no longer in contact with the terminal 13, completing the disconnection. At this time, the pressure plate 1 is in an inclined state, blocking the monitoring device 4. When sensed by the magnetic switch, an alarm is triggered.

[0040] The working principle of the magnetic switch in monitoring module 4: A magnetic switch is a contactless switch controlled by a magnetic field effect. It typically contains a reed switch and two or more metal contacts. When an external magnetic field approaches, the contacts close or open under magnetic force, thus achieving the switch's control function. The design of the magnetic switch not only avoids mechanical wear but also has the advantages of fast response speed and high sensitivity, making it widely used in scenarios requiring contactless control. In online monitoring of relay protection, the magnetic switch can be used to detect changes in the state of pressure plate 1, especially its closed or open state. By installing the magnetic switch near pressure plate 1, when the operation of pressure plate 1 (closing or opening) causes a change in the position of the magnet, the wire inside the reed switch is constrained by the magnetic force, changing its conduction state and triggering the switch signal, thereby providing real-time feedback on the operating state of pressure plate 1. This type of switch is suitable for high-frequency operation scenarios and can maintain stable monitoring performance in harsh environments, significantly improving the reliability of online monitoring of pressure plate 1 in the relay protection system, while reducing mechanical wear of the equipment and achieving more intelligent and accurate equipment status management.

Claims

1. An online monitoring device for the status of an RFID pressure plate based on a magnetic switch, comprising a pressure plate (1), a first support column (2) and a second support column (3) disposed opposite to each other, wherein the pressure plate (1) is disposed between the first support column (2) and the second support column (3), characterized in that: A monitoring device (4) is added between the first support (2) and the second support (3) and at the position corresponding to the pressure plate (1). The monitoring device (4) includes a magnetic switch, a signal generator and an RFID antenna module respectively connected to both ends of the magnetic switch, and an alarm module connected to the output end of the RFID antenna module. The output end of the signal generator is connected to one end of the magnetic switch, the input end of the RFID antenna module is connected to the other end of the magnetic switch, and the sensing end of the magnetic switch corresponds to the pressure plate (1).

2. The RFID pressure plate status online monitoring device based on a magnetic switch according to claim 1, characterized in that: The alarm module includes a data acquisition unit, a data processing unit connected to the output of the data acquisition unit, and an alarm unit connected to the data processing unit. The input of the data acquisition unit is connected to the output of the RFID antenna module. The RFID antenna module is a passive RFID antenna module or an active RFID antenna module.

3. The RFID pressure plate status online monitoring device based on a magnetic switch according to claim 1, characterized in that: It also includes a first screw and a second screw respectively disposed on the upper ends of the first support (2) and the second support (3), and a first nut (5) and a second nut (6) respectively disposed on the first screw and the second screw. One end of the pressure plate (1) is provided with a sleeve hole and one side of the other end of the pressure plate (1) is provided with a slot (7). One end of the pressure plate (1) is fitted onto the first screw through the sleeve hole and is located between the first nut (5) and the first support (2). The other end of the pressure plate (1) is engaged with the second screw through the slot (7) and is located between the second nut (6) and the second support (3).

4. The RFID pressure plate status online monitoring device based on a magnetic switch according to claim 3, characterized in that: The pressure plate (1) is provided with a handle (8) at its upper end.

5. The RFID pressure plate status online monitoring device based on a magnetic switch according to claim 3, characterized in that: Two washers (9) are provided on the first stud between the first support (2) and the first nut (5) and on the second stud between the second support (3) and the second nut (6), and the two ends of the pressure plate (1) are respectively located between the washers (9).

6. An online monitoring device for the status of an RFID pressure plate based on a magnetic switch, comprising a pressure plate (1), a support base (10) located below the pressure plate (1), two insert rods (11) spaced apart at the lower end of the pressure plate (1), two first insertion holes (12) spaced apart on the support base (10), and wiring terminals (13) respectively disposed at the lower end of the support base (10) and corresponding to the first insertion holes (12), wherein the pressure plate (1) is inserted into the first insertion holes (12) of the support base (10) by means of the insert rods (11) and abuts against the wiring terminals (13), characterized in that: A monitoring device (4) is added to one side of the support base (10). The monitoring device (4) includes a magnetic switch, a signal generator and an RFID antenna module connected to both ends of the magnetic switch, and an alarm module connected to the output end of the RFID antenna module. The output end of the signal generator is connected to one end of the magnetic switch, and the input end of the RFID antenna module is connected to the other end of the magnetic switch. The sensing end of the magnetic switch faces upward.

7. The RFID pressure plate status online monitoring device based on a magnetic switch according to claim 6, characterized in that: The alarm module includes a data acquisition unit, a data processing unit connected to the output of the data acquisition unit, and an alarm unit connected to the data processing unit. The input of the data acquisition unit is connected to the output of the RFID antenna module. The RFID antenna module is a passive RFID antenna module or an active RFID antenna module.

8. The RFID pressure plate status online monitoring device based on a magnetic switch according to claim 6, characterized in that: It also includes positioning seats (14) on both sides of the support seat (10) and second insertion holes (15) respectively on the positioning seats (14), the second insertion holes (15) corresponding to the two insertion rods (11) respectively.

9. The RFID pressure plate status online monitoring device based on a magnetic switch according to claim 6, characterized in that: It also includes a positioning post (16) located at the lower end of the middle part of the pressure plate (1) and a positioning hole located in the middle of the support base (10) and corresponding to the positioning post (16), wherein the length of the positioning post (16) is greater than that of the insertion rod (11).

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