Hard pressing plate operation device based on pressure monitoring and monitoring system

Abstract

The invention discloses a hard pressing plate operation device based on pressure monitoring and a monitoring system.The hard pressing plate operation device comprises an outer shell, an electronic assembly, an inner shell and a bidirectional ratchet wheel assembly, a wing-shaped structure is arranged on the outer side of the outer shell, the inner shell is arranged in the outer shell, the outer shell is aligned with the bottom end of the inner shell, and the inner shell rotates in the outer shell; a sawtooth-shaped hole is formed in the inner shell, a two-way ratchet wheel assembly is arranged on the upper portion of the inner shell, an electronic assembly is arranged above the two-way ratchet wheel assembly, and the electronic assembly is connected with the top end of the outer shell in an aligned mode. The virtual connection problem of the hard pressing plate is avoided; the system disclosed by the invention comprises an operation device, a hard pressing plate state summarization analysis terminal and hard pressing plate state monitoring software, and the monitoring system disclosed by the invention realizes remote monitoring, does not need to arrange wires around the pressing plate, reduces the working intensity, saves the cost and improves the safety.

Description

Technical Field

[0001] The invention relates to the field of transformer substation relay protection, and in particular to a hard pressure plate operating device and a monitoring system based on pressure monitoring. Background Art

[0002] The relay protection pressure plate is the bridge and link between the relay protection device and the external wiring. It is related to whether the protection function and action outlet can function normally. When the power grid operation mode changes or the equipment is repaired, the pressure plate operation is very frequent. Traditional conventional stations are mostly hard pressure plates, which need to be manually put in and out on site. The anti-error work of the hard pressure plate relies on human eyes and experience judgment, which requires high experience of workers and is prone to wrong operation. Power accidents caused by false connection or wrong putting and withdrawing of the pressure plate are common. Therefore, it is necessary to improve the operation mode of the hard pressure plate and realize online monitoring of the hard pressure plate, so as to realize the secondary anti-error of the pressure plate.

[0003] In the application of monitoring the status of the hard pressure plate in the prior art, the pressure plate status monitoring and management system and method disclosed in CN 112865318 A, the system consists of a pressure plate controller, one or more pressure plate status collectors, multiple pressure plate status sensors and pressure plate management software, and realizes the functions of real-time monitoring of the pressure plate status of the substation, plant station or multiple stations, anti-error prompts for pressure plate operation, etc. at the station control layer, providing safety measures for pressure plate operation. However, the system has the following disadvantages: it does not solve the problem that the hard pressure plate nuts are difficult to loosen or tighten; it cannot solve the problem of virtual connection of the pressure plate; during on-site installation, wiring is required between each pressure plate status collector and the pressure plate controller, the wiring construction is complicated, and there are safety hazards. Summary of the invention

[0004] The purpose of the present invention is to solve the problems raised in the above background technology, and then propose a hard pressure plate operating device and monitoring system based on pressure monitoring. The device disclosed in the present invention is suitable for the operation of the hard pressure plate, making the installation and unloading of the hard pressure plate nut more labor-saving, while ensuring that the installation of the hard pressure plate nut will not be too tight or too loose, avoiding the problem of virtual connection of the hard pressure plate. The system disclosed in the present invention uses an operating device to achieve remote monitoring, without the need for wiring around the pressure plate, reducing work intensity, saving costs, and improving safety.

[0005] The technical solution adopted by the present invention to solve its technical problem is: A hard pressure plate operating device based on pressure monitoring includes an outer shell, an electronic component, an inner shell and a two-way ratchet assembly. An airfoil structure is arranged on the outer side of the outer shell, and the airfoil structure makes the hard pressure plate insertion and retraction work more labor-saving. An inner shell is arranged inside the outer shell, and the bottom ends of the outer shell and the inner shell are aligned. The inner shell rotates inside the outer shell, and a serrated hole is arranged inside the inner shell, and the serrated hole is just sleeved on the nut of the hard pressure plate. A two-way ratchet assembly is arranged on the upper part of the inner shell, and an electronic component is arranged above the two-way ratchet assembly. The electronic component is aligned and connected with the top end of the outer shell.

[0006] Preferably, the outer shell, inner shell and outer shell of the electronic component are made of materials with excellent insulation performance and good strength, which can avoid the risk of electric shock and bear the torque of the nut installation and removal of the pressure plate.

[0007] Preferably, a pressure sensor, a power switch, a buzzer and a battery are arranged in the electronic component, one end of the power switch is connected to the battery, and the other end of the power switch is respectively connected to the pressure sensor and the buzzer; the pressure sensor and the buzzer are electrically connected.

[0008] Preferably, a wireless transmission module is provided in the electronic component, the wireless transmission module is connected to the battery via a power switch, and the wireless transmission module is electrically connected to the pressure plate status summary and analysis terminal, the pressure sensor and the buzzer respectively.

[0009] Preferably, the bidirectional ratchet assembly includes a ratchet and a pawl, wherein the ratchet is fixed at the center point of the top end of the inner shell, a toothed protrusion is arranged at one end of the pawl, a pin hole is arranged at the other end of the pawl, the pawl is hinged to the inner shell through a pin shaft, the pawl can rotate around the pin shaft, the toothed protrusion of the pawl is stuck on the ratchet, a compression spring is arranged on the other side of the toothed protrusion of the pawl, and the other end of the compression spring is connected to the inner side of the outer shell, the pawl and the compression spring are arranged in two groups and are symmetrical about a diameter axis of the inner shell. The space between the nut of the hard pressure plate and the workpiece is narrow, and the hard pressure plate operating device cannot rotate continuously. By setting a bidirectional ratchet assembly, the installation and removal of the hard pressure plate nut are more convenient.

[0010] Preferably, the two-way ratchet assembly also includes a two-way ratchet switch, wherein the two-way ratchet switch is arranged between the two groups of pawls, a protruding block 1 and two protruding blocks 2 are arranged at the top of the inner shell, an arc plate 1 is arranged at one end of the two-way ratchet switch, and the arc plate 1 is clamped between the protruding block 1 and the protruding block 2, so that the two-way ratchet switch can only move left and right, and rollers are respectively arranged at both ends of the arc plate 1, and the rollers are in contact with the inner sides of the two groups of pawls, and the friction between the two-way ratchet switch and the pawls is reduced by the rollers, so that the two-way ratchet switch is more labor-saving and convenient to toggle, and an arc plate 2 is arranged at the other end of the two-way ratchet switch, and the outer shell is provided with a rectangular opening at the position where the two-way ratchet switch is located, and the arc plate 2 passes through the outer shell through the rectangular opening, and the length of the rectangular opening is greater than the arc plate 2, and the two-way ratchet switch is moved left and right by toggling the arc plate 2, thereby controlling the rotation direction of the two-way ratchet assembly.

[0011] A hard pressure plate monitoring system based on pressure monitoring includes an operating device, a hard pressure plate status summary and analysis terminal and hard pressure plate status monitoring software. The operating device is installed on the nut of the hard pressure plate to monitor the insertion and retraction status of the hard pressure plate in real time. The operating device is electrically connected to the hard pressure plate status summary and analysis terminal through an internally arranged wireless transmission module; the hard pressure plate status summary and analysis terminal receives and summarizes hard pressure plate status information transmitted by multiple operating devices, analyzes whether the corresponding hard pressure plate status is abnormal, and transmits the hard pressure plate status information to the hard pressure plate status monitoring software.

[0012] Preferably, when the hard pressure plate under the operating device is incorrectly connected, the buzzer indicator light inside the operating device flashes and an alarm sounds, the installer can accurately install the hard pressure plate according to the instruction information of the buzzer, and the inspection personnel can find the virtual connection of the hard pressure plate according to the flashing indicator light and the alarm of the buzzer, and then perform inspection and maintenance; the wireless transmission module sends a warning message to the hard pressure plate status monitoring software through the hard pressure plate status summary and analysis terminal, and the staff can remotely monitor the pressure plate insertion and withdrawal status through the software.

[0013] Preferably, the hard pressure plate status monitoring software displays the insertion and retraction status of all hard pressure plates equipped with operating devices, as well as the corresponding positions and upstream and downstream connection information of the hard pressure plates; by operating the hard pressure plate status monitoring software, the buzzer indicator light of a certain operating device is controlled to flash and sound an alarm, helping the staff to quickly locate the hard pressure plate.

[0014] Compared with the prior art, the present invention has the following beneficial effects: 1. The device disclosed in the present invention is suitable for the insertion and withdrawal of the hard pressure plate. By setting the wing-shaped structure and the two-way ratchet assembly, the installation and unloading of the hard pressure plate nut is more labor-saving, thereby improving the work efficiency. By setting the electronic assembly, it is ensured that the installation of the hard pressure plate nut will not be too tight or too loose, thereby avoiding the problem of virtual connection of the hard pressure plate and improving the safety of the device application.

[0015] 2. The main body of the operating device is made of materials with excellent insulation performance and good strength, which not only avoids the risk of electric shock, but also bears the torque of the nut installation and disassembly of the pressure plate, thereby improving the safety of the device application.

[0016] 3. The electronic components include a pressure sensor, a power switch, a wireless transmission module, a buzzer and a battery. When the hard pressure plate is in a virtual connection state, the indicator light of the buzzer flashes and an alarm sounds, reminding the staff to quickly find the problem hard pressure plate and improve work efficiency.

[0017] 4. The two-way ratchet assembly and the two-way ratchet switch cooperate with each other, and the operating device can flexibly rotate the nut of the hard pressure plate, making the hard pressure plate more convenient to insert and withdraw, thereby improving work efficiency.

[0018] 5. The two-way ratchet switch reduces the friction between the two-way ratchet switch and the pawl by setting a roller, making it easier to turn the two-way ratchet switch and increasing the service life of the device. 6. The monitoring system disclosed in the present invention includes an operating device, a hard pressure plate status summary and analysis terminal and a hard pressure plate status monitoring software. The monitoring system can remotely view the hard pressure plate's investment and withdrawal status, promptly discover potential problems, avoid equipment damage or fire, improve safety, reduce unnecessary economic losses, reduce maintenance costs, and improve work efficiency.

[0019] 7. When the staff is changing the operation mode of the power grid and repairing the equipment, there are a large number of hard pressure plates in the power station. The text labels on the hard pressure plates are small and the label positions are not uniform in each power station. To avoid errors in the investment and withdrawal of the hard pressure plates, the staff can control the indicator light of the buzzer on the required hard pressure plate to flash and sound an alarm through the software, so as to achieve rapid positioning of the hard pressure plate and improve work efficiency.

[0020] 8. Use the operating device for wireless data transmission to avoid large amounts of wiring on site, which reduces both safety hazards and maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the device disclosed in the present invention; Figure 2 It is a schematic diagram of the overall structure of the device disclosed in the present invention; Figure 3 The present invention discloses a device Figure 1 A partial enlarged view of point B; Figure 4 The present invention discloses a device Figure 1 AA section view; Figure 5 It is a schematic diagram of the structure of the bidirectional ratchet assembly of the device disclosed in the present invention; Figure 6The figure is a flow chart of the system disclosed in the present invention.

[0022] Among them: 1, wing-shaped structure; 2, outer shell; 201, rectangular opening; 3, electronic component; 301, pressure sensor; 302, power switch; 303, wireless transmission module; 304, buzzer; 305, battery; 4, inner shell; 5, two-way ratchet assembly; 501, ratchet; 502, compression spring; 503, pawl; 504, pin; 6, two-way ratchet switch, 601, roller; 602, arc plate one; 603, arc plate two; 604, raised block one; 605, raised block two. DETAILED DESCRIPTION

[0023] It should be noted that the following detailed descriptions are illustrative and are intended to provide further explanation of the present application. Unless otherwise specified, all technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art to which the present application belongs.

[0024] like Figure 1-Figure 6 As shown, a hard pressure plate operating device and monitoring system based on pressure monitoring is disclosed, wherein the operating device includes an outer shell 2, an electronic component 3, an inner shell 4 and a bidirectional ratchet assembly 5, an airfoil structure 1 is arranged on the outer side of the outer shell 2, an inner shell 4 is arranged inside the outer shell 2, the bottom ends of the outer shell 2 and the inner shell 4 are aligned, the inner shell 4 rotates inside the outer shell 2, a serrated hole is arranged inside the inner shell 4, the serrated hole just fits on the nut of the hard pressure plate, a bidirectional ratchet assembly 5 is arranged on the upper part of the inner shell 4, an electronic component 3 is arranged above the bidirectional ratchet assembly 5, and the electronic component 3 is aligned and connected with the top of the outer shell 2. The airfoil structure 1 makes it easier to install and remove the nut of the hard pressure plate. The space around the nut of the hard pressure plate is small, and the airfoil structure 1 cannot be rotated continuously when the device is provided with the airfoil structure 1. The bidirectional ratchet assembly 5 is arranged on the inner shell 4, so that the installation and removal of the nut of the hard pressure plate can be completed quickly.

[0025] like Figure 1 and Figure 2 As shown, the outer shell 2, the inner shell 4 and the outer shell of the electronic component 3 are made of materials with excellent insulation performance and good strength. The excellent insulation avoids the risk of electric shock of the device, and the good strength can bear the torque of the nut installation and disassembly of the pressure plate, so that the device has good durability.

[0026] like Figure 1 , Figure 3 and Figure 4As shown, the electronic component 3 is provided with a pressure sensor 301, a power switch 302, a buzzer 304 and a battery 305. One end of the power switch 302 is connected to the battery 305, and the other end of the power switch 302 is respectively connected to the pressure sensor 301 and the buzzer 304; the pressure sensor 301 and the buzzer 304 are electrically connected. The power switch 302 needs to be turned on before the device is used. During the installation of the hard pressure plate nut, the pressure sensor 301 can detect the pressure received by the device. When the pressure reaches the set value, the indicator light of the buzzer 304 flashes and an alarm is sounded, that is, the hard pressure plate is installed, and the battery 305 can be removed and replaced.

[0027] A wireless transmission module 303 is provided in the electronic component 3, and the wireless transmission module 303 is connected to the battery 305 through the power switch 302, and the wireless transmission module 303 is respectively electrically connected to the pressure plate state summary analysis terminal, the pressure sensor 301 and the buzzer 304. The wireless transmission module 303 transmits the hard pressure plate state information detected by the device to the pressure plate state summary analysis terminal, thereby realizing remote online monitoring of the hard pressure plate state.

[0028] like Figure 1 , Figure 4 and Figure 5 As shown, the bidirectional ratchet assembly 5 includes a ratchet 501 and a pawl 503, the ratchet 501 is fixed at the center point of the top end of the inner shell 4, a toothed protrusion is arranged at one end of the pawl 503, and a pin hole is arranged at the other end of the pawl 503, the pawl 503 is hinged to the inner shell 4 through a pin shaft 504, the pawl 503 can rotate around the pin shaft 504, the toothed protrusion of the pawl 503 is stuck on the ratchet 501, a compression spring 502 is arranged on the other side of the toothed protrusion of the pawl 503, and the other end of the compression spring is connected to the inner side of the outer shell 2, the pawl 503 and the compression spring 502 are arranged in two groups, and are symmetrical about a diameter axis of the inner shell 4, the space between the nut of the hard pressure plate and the workpiece is narrow, and the hard pressure plate operating device cannot rotate continuously, and the bidirectional ratchet assembly is provided to make the installation and removal of the hard pressure plate nut more convenient; The two-way ratchet assembly 5 also includes a two-way ratchet switch 6, which is arranged between the two groups of ratchet pawls 503. A protruding block 1 604 and two protruding blocks 2 605 are arranged at the top of the inner shell 4. An arc plate 1 602 is arranged at one end of the two-way ratchet switch 6. The arc plate 1 602 is clamped between the protruding block 1 604 and the protruding block 2 605, so that the two-way ratchet switch 6 can only move left and right. Rollers 601 are respectively arranged at both ends of the arc plate 1 602. The rollers 601 are connected to the inner sides of the two groups of ratchet pawls 503. The friction between the two-way ratchet switch 6 and the pawl 503 is reduced by the roller, making it easier and more convenient to turn the two-way ratchet switch 6. An arc plate 2 603 is provided at the other end of the two-way ratchet switch 6. A rectangular opening 201 is provided at the position of the two-way ratchet switch 6 in the housing 2. The arc plate 2 603 passes through the housing 2 through the rectangular opening 201. The length of the rectangular opening 201 is greater than that of the arc plate 2 603. The two-way ratchet switch 6 is moved left and right by turning the arc plate 2 603, thereby controlling the rotation direction of the two-way ratchet assembly 5.

[0029] like Figure 6 As shown, the monitoring system includes multiple operating devices, a hard pressure plate status summary and analysis terminal and a hard pressure plate status monitoring software; the operating device is installed on the nut of the hard pressure plate to monitor the insertion and withdrawal status of the hard pressure plate in real time, and the operating device is electrically connected to the hard pressure plate status summary and analysis terminal through an internally arranged wireless transmission module 303; the hard pressure plate status summary and analysis terminal receives and summarizes the hard pressure plate status information transmitted by multiple operating devices, analyzes whether the corresponding hard pressure plate status is abnormal, and transmits the hard pressure plate status information to the hard pressure plate status monitoring software, so that the staff can observe the insertion and withdrawal status of the hard pressure plate in real time on the software.

[0030] When the hard pressing plate is incorrectly connected, the indicator light of the buzzer 304 inside the operating device flashes and sounds an alarm, and the wireless transmission module 303 sends a warning message to the hard pressing plate status monitoring software through the hard pressing plate status summary and analysis terminal.

[0031] The hard pressure plate status monitoring software displays the insertion and retraction status of all hard pressure plates equipped with operating devices, as well as the corresponding positions and connection information of the hard pressure plates; by operating the hard pressure plate status monitoring software, the buzzer 304 indicator light of a certain monitoring device is controlled to flash and sound an alarm, thereby assisting the staff to quickly locate the hard pressure plate.

[0032] The method of using the device disclosed in the present invention is as follows: When the hard pressure plate needs to be put into operation, the operator puts the operating device on the nut of the hard pressure plate, adjusts the two-way ratchet switch 6, rotates the airfoil structure 1 to tighten the hard pressure plate nut. When the pressure plate nut is tightened to a certain extent, the pressure in the device reaches the set value, triggering the internal pressure sensor 301 of the electronic component 3, and the internal indicator light of the buzzer 304 flashes and sounds an alarm, indicating that the hard pressure plate nut has now pressed the hard pressure plate piece, that is, the hard pressure plate is in place; when the hard pressure plate needs to be withdrawn, toggle the two-way ratchet switch 6, rotate the airfoil structure 1 in the opposite direction, loosen the hard pressure plate nut, the device pressure disappears, and the indicator light of the pressure sensor 301 goes out, that is, the withdrawal of the hard pressure plate is completed.

[0033] The present invention discloses a method for using the monitoring system: 1. Remote online detection method of monitoring system.

[0034] The hard pressure plate operating device is set on the hard pressure plate, and the status and investment and withdrawal status of the hard pressure plate are sent to the hard pressure plate status summary and analysis terminal through the wireless transmission module 303. The hard pressure plate status summary and analysis terminal determines whether the current hard pressure plate investment and withdrawal status meets the equipment operation requirements. When there is a hard pressure plate investment and withdrawal error, the operating device indicator light on the corresponding erroneous hard pressure plate lights up, and the buzzer 304 sounds an alarm. The inspection personnel locate the erroneous hard pressure plate according to the alarm information and complete the equipment maintenance. At the same time, the monitoring information is transmitted to the hard pressure plate status monitoring software. The backstage personnel can obtain the erroneous hard pressure plate information through the hard pressure plate status monitoring software, and can also remind the on-site staff and keep a record.

[0035] 2. On-site detection method of monitoring system.

[0036] When the grid operation mode changes or equipment is overhauled, there are a large number of hard pressure plates in the power station. The text labels on the hard pressure plates are small and the label positions are not uniform in each power station. To avoid errors in the commissioning and decommissioning of hard pressure plates, the staff clicks on the hard pressure plate that needs to be adjusted on the hard pressure plate status monitoring software. The buzzer 304 indicator light of the operating device on the corresponding hard pressure plate lights up and sounds an alarm, allowing the staff to quickly locate the hard pressure plate that needs to be adjusted.

[0037] In the description of the present invention, the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "vertical", "horizontal" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the purpose of describing the present invention rather than requiring the present invention to be constructed or operated in a specific position, and therefore should not be construed as limiting the present invention. The terms "connected" and "connected" in the present invention should be understood in a broad sense, for example, it can be a connection or a detachable connection; it can be a direct connection or an indirect connection through an intermediate component. For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to specific circumstances.

[0038] The above is the preferred operation mode of the present invention, and the description of the specific operation mode is only used to better understand the concept of the present invention. For ordinary technicians in this technical field, several improvements or equivalent substitutions can be made according to the principles of the present invention, and these improvements or equivalent substitutions are also considered to fall within the protection scope of the present invention.

Claims

1. A hard pressure plate operating device based on pressure monitoring, comprising a housing (2), characterized in that: It also comprises an electronic component (3), an inner shell (4) and a bidirectional ratchet component (5), wherein an airfoil structure (1) is arranged outside the outer shell (2), the inner shell (4) is arranged inside the outer shell (2), the bottom ends of the outer shell (2) and the inner shell (4) are aligned, the inner shell (4) rotates inside the outer shell (2), a serrated hole is arranged inside the inner shell (4), a bidirectional ratchet component (5) is arranged on the upper part of the inner shell (4), the electronic component (3) is arranged above the bidirectional ratchet component (5), and the electronic component (3) and the top ends of the outer shell (2) are aligned and connected.

2. According to claim 1, a hard platen operating device based on pressure monitoring is characterized in that: The outer shell (2), the inner shell (4) and the outer shell of the electronic component (3) are made of materials with excellent insulation performance and good strength.

3. According to claim 1, a hard platen operating device based on pressure monitoring is characterized in that: The electronic component (3) is provided with a pressure sensor (301), a power switch (302), a buzzer (304) and a battery (305); one end of the power switch (302) is connected to the battery (305), and the other end of the power switch (302) is respectively connected to the pressure sensor (301) and the buzzer (304); the pressure sensor (301) and the buzzer (304) are electrically connected.

4. According to claim 3, a hard pressing plate operating device based on pressure monitoring is characterized in that: A wireless transmission module (303) is provided in the electronic component (3); the wireless transmission module (303) is connected to a battery (305) via a power switch (302); and the wireless transmission module (303) is electrically connected to a pressure plate state summary analysis terminal, a pressure sensor (301), and a buzzer (304).

5. According to claim 1, a hard pressing plate operating device based on pressure monitoring is characterized in that: The bidirectional ratchet assembly (5) comprises a ratchet (501) and a pawl (503), wherein the ratchet (501) is fixed at the top center point of the inner shell (4), a toothed protrusion is arranged at one end of the pawl (503), and a pin hole is arranged at the other end of the pawl (503), the pawl (503) is hinged to the inner shell (4) via a pin shaft (504), the toothed protrusion of the pawl (503) is clamped on the ratchet (501), a compression spring (502) is arranged on the other side of the toothed protrusion of the pawl (503), and the other end of the compression spring is connected to the inner side of the outer shell (2), and the pawl (503) and the compression spring (502) are arranged in two groups and are symmetrical about a diameter axis of the inner shell (4).

6. A hard platen operating device based on pressure monitoring according to claim 5, characterized in that: The bidirectional ratchet assembly (5) further comprises a bidirectional ratchet switch (6), wherein the bidirectional ratchet switch (6) is arranged between the two groups of ratchet pawls (503), a protruding card block (604) and two protruding card blocks (605) are arranged at the top of the inner shell (4), an arc plate (602) is arranged at one end of the bidirectional ratchet switch (6), the arc plate (602) is clamped between the protruding card block (604) and the protruding card block (605), and the arc plate (602) is clamped between the protruding card block (604) and the protruding card block (605). Rollers (601) are respectively arranged at both ends of the two-way ratchet switch (602), the rollers (601) are in contact with the inner sides of the two groups of pawls (503), an arc plate 2 (603) is arranged at the other end of the two-way ratchet switch (6), a rectangular opening (201) is arranged on the housing (2) at the position where the two-way ratchet switch (6) is located, the arc plate 2 (603) passes through the housing (2) through the rectangular opening (201), and the length of the rectangular opening (201) is greater than that of the arc plate 2 (603).

7. A hard plate monitoring system based on pressure monitoring, characterized in that: The monitoring system includes an operating device, a hard pressing plate state summary and analysis terminal and a hard pressing plate state monitoring software; The operating device is installed on the nut of the hard pressing plate to monitor the insertion and withdrawal status of the hard pressing plate in real time. The operating device is electrically connected to the hard pressing plate status summary and analysis terminal via an internally arranged wireless transmission module (303); The hard pressure plate status summary and analysis terminal receives and summarizes the hard pressure plate status information transmitted by multiple operating devices, analyzes whether the corresponding hard pressure plate status is abnormal, and transmits the hard pressure plate status information to the hard pressure plate status monitoring software.

8. A hard plate monitoring system based on pressure monitoring according to claim 7, characterized in that: When the operating device is incorrectly connected to the hard pressing plate, the indicator light of the buzzer (304) inside the operating device flashes and an alarm is sounded, and the wireless transmission module (303) sends a warning message to the hard pressing plate status monitoring software through the hard pressing plate status summary analysis terminal.

9. A hard plate monitoring system based on pressure monitoring according to claim 7, characterized in that: The hard pressing plate status monitoring software displays the insertion and retraction status of all hard pressing plates equipped with operating devices, as well as the corresponding positions and connection information of the hard pressing plates; by operating the hard pressing plate status monitoring software, the buzzer (304) indicator light of a certain monitoring device is controlled to flash and sound an alarm, thereby assisting the staff to quickly locate the hard pressing plate.

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