A fixed pulley rope anti-falling alarm device and system

Abstract

The application discloses a fixed pulley rope anti-falling alarm device, which comprises a workbench, an anti-falling device arranged at the upper end of the workbench, a fixed pulley rotatably connected to the center of the inner surface of the workbench, an alarm device arranged at the upper surface of the workbench, and a camera arranged above the workbench. When the application is used, the rope on the outer surface of the fixed pulley is moved by an external driving device. When the rope moves at a high speed and has a risk of falling off, the limiting push piece will be driven to vibrate to a certain extent, and simultaneously drives the positioning block to rotate. When the positioning block rotates, the rotating block will be driven to rotate to a certain extent. At this time, the rotating block will push the trigger push piece to move towards the trigger switch during the rotation process, and the trigger switch can be triggered to produce an alarm and remind people of the risk of rope falling off.

Description

Technical Field

[0001] This invention relates to the field of fixed pulley technology, and in particular to a fixed pulley rope anti-drop alarm device and system. Background Technology

[0002] A fixed pulley is a pulley that cannot be moved or rotated. It is usually used to support and guide materials such as ropes, cables, and cords to change direction or provide mechanical advantages. It is the opposite of a movable pulley, which can rotate or move. A fixed pulley is usually fixed to a bracket or support and cannot rotate freely. Its function is to change the direction of the force, but not the magnitude of the force.

[0003] In existing technologies, especially in slings, ropes, and rope systems, people often use fixed pulleys in fixed positions to change or apply forces.

[0004] However, in actual use, when the rope moves outside the fixed pulley, it often deviates to a certain extent in the groove inside the fixed pulley due to its relatively rough outer surface. Therefore, in high-altitude operations, there is a risk that the rope may come off the fixed pulley, which will affect the normal lifting operation and cause the heavy object to lose weight and fall during the lifting process, thereby endangering the lives of construction workers. In view of this, we propose a fixed pulley rope anti-fall alarm device and system. Summary of the Invention

[0005] The main objective of this invention is to provide a fixed pulley rope anti-fall alarm device and system, which solves the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention proposes a fixed pulley rope anti-drop alarm device, including a workbench, an anti-drop device at the upper end of the workbench, a fixed pulley rotatably connected at the center of the inner surface of the workbench, an alarm device at the upper surface of the workbench, and a camera above the workbench.

[0007] The alarm device includes a limit block, a rotating block is rotatably connected inside the limit block, a spiral spring is fixedly connected to the end of the rotating block, a positioning block is fixedly connected to the inner arc surface of the rotating block, a limit lever is fixedly connected to the front surface of the positioning block, a trigger switch is fixedly connected to the inner surface of the limit block, and a trigger lever is fixedly connected to the back of the trigger switch.

[0008] Preferably, the anti-detachment device includes a support, a connecting shaft is fixedly connected to the inner surface of the support, and a pressure rod is rotatably connected to the outer surface of the connecting shaft.

[0009] Preferably, the front end of the workbench has a rectangular groove, and the upper surface of the workbench is fixedly connected to a limiting block by bolts. The limiting block is hollow inside, and there are two sets of limiting blocks. The two sets of limiting blocks are symmetrically distributed about the center line of the workbench. The adjacent surfaces of the two sets of limiting blocks are provided with through holes.

[0010] Preferably, the lower end of the rotating block is provided with a rectangular protrusion, the outer surface of the spiral spring is provided with a cylindrical protrusion, the protrusion of the spiral spring is in contact with the inner wall of the limiting block, the outer surface of the triggering paddle is in contact with the rotating block, the front surface of the positioning block is provided with multiple sets of through threaded holes, and the end of the limiting paddle away from the positioning block is set as arc-shaped.

[0011] Preferably, the upper end of the support is arc-shaped, and there are two sets of supports, which are symmetrically distributed about the center line of the workbench. Multiple through holes are opened on the inner surface of the support. A set of supports is fixedly connected to both ends of the connecting shaft. The distance between the pressure rod and the fixed pulley is less than or equal to one-third of the rope diameter.

[0012] A fixed pulley rope anti-derailment alarm system, the fixed pulley rope anti-derailment alarm system comprising:

[0013] An alarm triggering module is used to receive abnormal alarm signals transmitted from the trigger switch. The alarm triggering module includes a trigger switch module and a wireless transmission module.

[0014] An image recording module is used to connect to a camera and transmit and store the images monitored by it. The image recording module includes a camera module, an online transmission module, and an image storage module.

[0015] The image analysis module is used to identify and analyze the position of the rope through image recognition and analysis technology. The image analysis module includes an image calibration module, an image algorithm module, and an anomaly log module.

[0016] An anomaly handling module is used to process received anomaly alarm signals with sound and light. The anomaly alarm module includes a buzzer alarm module, a warning light alarm module, and a circuit emergency stop module.

[0017] The remote control module is used by operators to monitor the status of the rope at the fixed pulley in real time. The remote control module includes a video display module, an abnormality reset module, and a signal transmission module.

[0018] Preferably, the trigger switch module controls the trigger switch and enables the trigger switch to form a complete closed loop when the trigger lever is pushed by the rotating block. At this time, the trigger switch will generate an electrical signal and transmit the electrical signal to the wireless transmission module. The wireless transmission module receives the electrical signal generated by the trigger switch module, filters the electrical signal, and transmits it to the anomaly handling module to trigger the corresponding anomaly alarm. The camera module controls the working status of the camera and can monitor its own power supply status and automatically match the system time. The online transmission module maintains the real-time interconnection between the camera module and the remote control module and can feed back the images captured by the camera module to the remote control module in real time. The image storage module transmits the image information fed back from the camera module to the local database for video data storage and supports custom video data storage time so that the video information has custom duration traceability.

[0019] Preferably, the image calibration module is used to estimate the camera's internal parameters, including focal length, principal point coordinates, and external parameters, based on the pixel coordinates of feature points and the actual coordinates on the calibration board using a calibration algorithm. The image algorithm module is used to compare the rope status with the set safety threshold range in real time and match the video data of abnormal periods with the system time to the abnormal log module. The abnormal log module is used to store the video data of abnormal periods in the form of a list text and supports the remote control module to retrieve and verify the rope status video of the abnormal period by selecting it.

[0020] Preferably, the buzzer alarm module is used to control the buzzer component of the CNC terminal, and can synchronously drive the buzzer to operate and emit an alarm sound when the abnormality handling module receives an abnormal alarm signal. The warning light alarm module is used to control the operating status of the abnormality alarm light in the CNC terminal. When the rope operation is normal, the warning light will be controlled to emit a green light, and when the rope operation is abnormal, the warning light will be controlled to emit a red flashing light. The circuit emergency stop module is used to control the drive module that drives the rope movement, and can control the relevant circuits required for rope operation to be cut off in case of abnormality in the rope operation, so that the rope can stop running.

[0021] Preferably, the video display module controls the display screen of the CNC terminal and enables the display screen to continuously receive the rope status at the fixed pulley captured by the image recording module and display it on the screen for the operator to observe. The abnormal reset module is used by the operator to reset the erroneous alarm signals transmitted by the alarm triggering module and the image analysis module at the CNC terminal. At the same time, the abnormal reset module can also control the circuit emergency stop module to restore the normal power supply operation of the rope drive module. The signal sending module is used to classify and transmit the control information input in the abnormal reset module to the image analysis module, the alarm triggering module and the abnormal handling module, thereby completing the transmission of alarm cancellation and circuit recovery signals accordingly.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] (1) When the fixed pulley rope anti-fall alarm device is in use, it needs to drive the rope on the outer surface of the fixed pulley to move through an external drive device. When the rope moves at high speed and there is a risk of falling off, the limit plate will be driven to generate a certain degree of vibration. At the same time, the limit plate will drive the positioning block to rotate. When the positioning block rotates, it will drive the rotating block to rotate to a certain degree. At this time, the rotating block will push the trigger plate to move towards the trigger switch during the rotation, so that the trigger switch can be triggered to generate an alarm and remind people that there is a risk of rope falling off.

[0024] (2) When the rope is at risk of coming off, the fixed pulley rope anti-fall alarm device will move outward along the inner arc of the fixed pulley. At this time, the rope will come into contact with the pressure bar. The pressure bar will block the rope, so that the rope can never get away from the fixed pulley. Therefore, the rope can never get off the fixed pulley during the movement, thereby reducing the safety risk caused by the rope coming off the fixed pulley.

[0025] (3) When the fixed pulley rope anti-drop alarm system is running, it will simultaneously record video of the contact point between the rope and the fixed pulley through the camera, and transmit the recorded video to the CNC terminal for the operator to observe in real time. At the same time, the image analysis module will also perform real-time data analysis on the rope status through the internal image algorithm module, and can coordinate with the alarm trigger module to issue an alarm signal, thereby improving the reliability of abnormal alarms and reducing false alarms caused by accidental triggering of the lever due to shaking during rope operation. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0027] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0028] Figure 2 This is a schematic diagram of the support structure of the present invention;

[0029] Figure 3 This is a schematic diagram of the structure of the limiting lever of the present invention;

[0030] Figure 4 This is a schematic diagram of the internal structure of the limiting block of the present invention;

[0031] Figure 5 This is a flowchart of the fixed pulley rope anti-fall alarm system of the present invention;

[0032] Figure 6 This is a flowchart of the alarm triggering module of the present invention;

[0033] Figure 7 This is a flowchart of the image capturing module of the present invention;

[0034] Figure 8 This is a flowchart of the image analysis module of the present invention;

[0035] Figure 9 This is a flowchart of the exception handling module of the present invention;

[0036] Figure 10 This is a flowchart of the remote control module of the present invention.

[0037] In the diagram: 1. Workbench; 2. Alarm device; 3. Anti-detachment device; 4. Camera; 5. Fixed pulley; 201. Limit block; 202. Slider; 203. Limit lever; 204. Scroll spring; 205. Rotary block; 206. Trigger lever; 207. Trigger switch; 301. Pressure rod; 302. Connecting shaft; 303. Support. Detailed Implementation

[0038] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0039] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0040] Furthermore, the use of terms such as "first" and "second" in this invention is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this invention.

[0041] Please see Figure 1-4 The present invention provides a technical solution: a fixed pulley rope anti-drop alarm device, including a workbench 1, an anti-drop device 3 is provided at the upper end of the workbench 1, a fixed pulley 5 is rotatably connected at the center of the inner surface of the workbench 1, the fixed pulley 5 is a pulley group assembly in the prior art, in addition, multiple sets of pulleys can be installed at the fixed pulley 5 according to actual use requirements to meet its working requirements, an alarm device 2 is provided on the upper surface of the workbench 1, and a camera 4 is provided above the workbench 1;

[0042] The alarm device 2 includes a limit block 201, a rotating block 205 is rotatably connected inside the limit block 201, a spiral spring 204 is fixedly connected to the end of the rotating block 205, a positioning block 202 is fixedly connected to the inner arc surface of the rotating block 205, a limit lever 203 is fixedly connected to the front surface of the positioning block 202, a trigger switch 207 is fixedly connected to the inner surface of the limit block 201, and a trigger lever 206 is fixedly connected to the back of the trigger switch 207.

[0043] Specifically, a rectangular groove is provided at the front end of the worktable 1 to accommodate the fixed pulley 5 located at the front end of the worktable 1. A limit block 201 is fixedly connected to the upper surface of the worktable 1 by bolts. The limit block 201 is hollow inside, so that the rotating block 205, the spiral spring 204, the trigger lever 206, and the trigger switch 207 are located inside it. There are two sets of limit blocks 201, and the two sets of limit blocks 201 are symmetrically distributed about the center line of the worktable 1. Through holes are provided on the adjacent surfaces of the two sets of limit blocks 201, so that the rotating block 205 can... The slider 202 is fixedly connected by a fixed shaft, allowing them to rotate coaxially. The lower end of the rotating block 205 has a rectangular protrusion, which, when rotating, pushes the trigger paddle 206 towards the trigger switch 207, thus triggering an alarm. The outer surface of the spiral spring 204 has a cylindrical protrusion, which, when rotating, will elastically deform due to contact with the limit block 201. The protrusion of the spiral spring 204 contacts the inner wall of the limit block 201, and the outer surface of the trigger paddle 206 contacts the rotating block 205. Therefore, when the rotating block 205 rotates... The trigger lever 206 will rotate synchronously when the position of the fixed pulley 5 is adjusted. A rectangular groove is provided on the front surface of the slider 202, allowing the position of the limit lever 203 to be adjusted simultaneously with the position of the fixed pulley 5. The end of the limit lever 203 away from the slider 202 is arc-shaped, reducing the probability of scratch damage when it comes into contact with the rope. Two sets of rectangular protrusions are provided on the outer surface of the limit lever 203, allowing it to be fixedly connected to the upper trigger switch 207. The trigger switch 207 and the trigger lever 206... Two sets are provided, located inside the limit block 201 and on the upper surface of the limit lever 203, respectively. Therefore, when the limit lever 203 moves in the horizontal or vertical direction, the trigger switch 207 will send an abnormal signal. The lower surface of the upper trigger switch 207 is fixedly connected to the limit lever 203, and the outer surface of the upper trigger plate 206 contacts the base plate 208. A spring is fixedly connected to the end of the limit lever 203 near the base plate 208. The spring allows the limit lever 203 to be reset by the spring force after moving towards the base plate 208.

[0044] In this embodiment of the invention, the anti-detachment device 3 includes a support 303, a connecting shaft 302 is fixedly connected to the inner surface of the support 303, and a pressure rod 301 is rotatably connected to the outer surface of the connecting shaft 302.

[0045] Specifically, the upper end of the support 303 is arc-shaped, so that the distance between the multiple sets of connecting shafts 302 and the fixed pulley 5 is always equal. There are two sets of supports 303, and the two sets of supports 303 are symmetrically distributed about the center line of the workbench 1. Multiple sets of through holes are opened on the inner surface of the support 303, so that the connecting shafts 302 can be located inside them. A set of supports 303 is fixedly connected to both the left and right ends of the connecting shafts 302. The distance between the pressure rod 301 and the fixed pulley 5 is less than or equal to one-third of the rope diameter. Therefore, when the rope deviates slightly, the pressure rod 301 does not hinder its movement, but only blocks it when there is a risk of it coming off.

[0046] During operation (or use), the rope on the outer surface of the fixed pulley 5 needs to be moved by an external drive device. When the rope moves at high speed and there is a risk of it coming off, the limit lever 203 will be driven to vibrate to a certain extent. At the same time, the limit lever 203 will drive the positioning block 202 to rotate. When the positioning block 202 rotates, it will drive the rotating block 205 to rotate to a certain extent. At this time, the rotating block 205 will push the trigger lever 206 to move towards the trigger switch 207 during the rotation, so that the trigger switch 207 can be triggered to generate an alarm and remind people that there is a risk of the rope coming off.

[0047] Meanwhile, when the rope is at risk of coming off, it will move outward along the inner arc of the fixed pulley 5. At this time, the rope will come into contact with the pressure bar 301. The pressure bar 301 will block the rope, preventing it from moving away from the fixed pulley 5. Therefore, the rope will not be able to fully detach from the fixed pulley 5 during the movement, thereby reducing the safety risk caused by the rope coming off the fixed pulley 5.

[0048] Please see Figure 5-10 This invention provides a technical solution: a fixed pulley rope anti-fall alarm system, the fixed pulley rope anti-fall alarm system comprising:

[0049] The alarm triggering module is used to receive abnormal alarm signals transmitted from the trigger switch. The alarm triggering module includes a trigger switch module and a wireless transmission module.

[0050] The image recording module is used to connect to the camera and transmit and store the images monitored by it. The image recording module includes a camera module, an online transmission module and an image storage module.

[0051] The image analysis module is used to identify and analyze the position of the rope through image recognition and analysis technology. The image analysis module includes an image calibration module, an image algorithm module, and an anomaly log module.

[0052] The anomaly handling module is used to process received anomaly alarm signals with sound and light. The anomaly alarm module includes a buzzer alarm module, a warning light alarm module, and a circuit emergency stop module.

[0053] The remote control module is used by operators to monitor the status of the rope at the fixed pulley in real time. The remote control module includes a video display module, an abnormality reset module, and a signal transmission module.

[0054] The trigger switch module is used to control the trigger switch and can make the trigger switch form a complete closed circuit when the trigger lever is pushed by the rotating block. At this time, the trigger switch will generate an electrical signal and transmit the electrical signal to the wireless transmission module. The wireless transmission module is used to receive the electrical signal generated by the trigger switch module, filter the electrical signal and transmit it to the abnormality handling module to trigger the corresponding abnormal alarm.

[0055] The camera module controls the camera's operating status and monitors its own power supply status as well as automatically matching the system time. The online transmission module maintains real-time interconnection between the camera module and the remote control module and can transmit images captured by the camera module to the remote control module in real time. The image storage module transmits the image information transmitted from the camera module to the local database for video data storage and supports customizable video data storage time, enabling video information to have customizable duration traceability.

[0056] The image calibration module uses a calibration algorithm to estimate the camera's internal parameters, including focal length, principal point coordinates, and external parameters, based on the pixel coordinates of feature points and the actual coordinates on the calibration board. The image algorithm module compares the rope status with the set safety threshold range in real time and matches the video data during abnormal periods with the system time, storing it in the abnormal log module. The abnormal log module stores the video data during abnormal periods in the form of a list text and supports the remote control module to retrieve and verify the rope status video during the abnormal period by selecting it.

[0057] The buzzer alarm module controls the buzzer component of the CNC terminal and can synchronously drive the buzzer to sound an alarm when the abnormality handling module receives an abnormal alarm signal. The warning light alarm module controls the operating status of the abnormality alarm light in the CNC terminal. When the rope operation is normal, the warning light will be controlled to emit a green light, and when the rope operation is abnormal, the warning light will be controlled to emit a flashing red light. The circuit emergency stop module controls the drive module that drives the rope movement and can control the relevant circuits required for rope operation to be cut off in case of abnormality in the rope operation, so that the rope can stop running.

[0058] The video display module controls the CNC terminal's display screen, enabling it to continuously receive the rope status at the fixed pulley captured by the image recording module and display it on the screen for operator observation. The fault reset module allows the operator to reset erroneous alarm signals transmitted from the alarm triggering module and image analysis module at the CNC terminal. Simultaneously, the fault reset module can control the circuit emergency stop module to restore normal power supply to the rope drive module. The signal transmission module categorizes and transmits the control information input from the fault reset module to the image analysis module, alarm triggering module, and fault handling module, thereby correspondingly completing the transmission of alarm cancellation and circuit recovery signals.

[0059] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A fixed pulley rope anti-falling alarm device, comprising a workbench (1), characterized in that: The upper end of the workbench (1) is provided with an anti-detachment device (3), a fixed pulley (5) is rotatably connected at the center of the inner surface of the workbench (1), an alarm device (2) is provided on the upper surface of the workbench (1), and a camera (4) is provided above the workbench (1). The alarm device (2) includes a limiting block (201), a rotating block (205) is rotatably connected inside the limiting block (201), a spiral spring (204) is fixedly connected to the end of the rotating block (205), a slider (202) is fixedly connected to the inner arc surface of the rotating block (205), a limiting lever (203) is fixedly connected to the front surface of the slider (202), a trigger switch (207) is fixedly connected to the inner surface of the limiting block (201), a trigger lever (206) is fixedly connected to the back of the trigger switch (207), a base plate (208) is fixedly connected to the outer side of the limiting block (201), a rectangular protrusion is provided at the lower end of the rotating block (205), a cylindrical protrusion is provided on the outer surface of the spiral spring (204), and the protrusion of the spiral spring (204) is... The trigger lever (206) contacts the inner wall of the limiting block (201), and the outer surface of the trigger lever (206) contacts the rotating block (205). A rectangular groove is opened on the front surface of the slider (202). The end of the limiting lever (203) away from the slider (202) is set as an arc. Two sets of rectangular protrusions are provided on the outer surface of the limiting lever (203). Two sets of trigger switches (207) and trigger levers (206) are provided, and they are located inside the limiting block (201) and on the upper surface of the limiting lever (203), respectively. The lower surface of the upper trigger switch (207) is fixedly connected to the limiting lever (203). The outer surface of the upper trigger lever (206) contacts the base plate (208). A spring is fixedly connected to the end of the limiting lever (203) near the base plate (208). The anti-detachment device (3) includes a support (303), a connecting shaft (302) is fixedly connected to the inner surface of the support (303), and a pressure rod (301) is rotatably connected to the outer surface of the connecting shaft (302). The upper end of the support (303) is arc-shaped. There are two sets of supports (303), and the two sets of supports (303) are symmetrically distributed about the center line of the workbench (1). Multiple through holes are opened on the inner surface of the support (303). A set of supports (303) is fixedly connected to both the left and right ends of the connecting shaft (302). The distance between the pressure rod (301) and the fixed pulley (5) is less than or equal to the distance between the rope and the fixed pulley (5). One-third of the cable diameter.

2. The fixed pulley rope anti-fall alarm device according to claim 1, characterized in that: The front end of the workbench (1) is provided with a rectangular groove. The upper surface of the workbench (1) is fixedly connected with a limiting block (201) by bolts. The limiting block (201) is hollow inside. There are two sets of limiting blocks (201), and the two sets of limiting blocks (201) are symmetrically distributed with the center line of the workbench (1) as the axis of symmetry. The adjacent surfaces of the two sets of limiting blocks (201) are provided with through holes.

3. A fixed pulley rope anti-fall alarm system, used to implement the fixed pulley rope anti-fall alarm device as described in any one of claims 1-2, characterized in that: The fixed pulley rope anti-fall alarm system includes: An alarm triggering module is used to receive abnormal alarm signals transmitted from the trigger switch. The alarm triggering module includes a trigger switch module and a wireless transmission module. An image recording module is used to connect to a camera and transmit and store the images monitored by it. The image recording module includes a camera module, an online transmission module, and an image storage module. The image analysis module is used to identify and analyze the position of the rope through image recognition and analysis technology. The image analysis module includes an image calibration module, an image algorithm module, and an anomaly log module. An anomaly handling module is used to process received anomaly alarm signals with sound and light. The anomaly alarm module includes a buzzer alarm module, a warning light alarm module, and a circuit emergency stop module. The remote control module is used by operators to monitor the status of the rope at the fixed pulley in real time. The remote control module includes a video display module, an abnormality reset module, and a signal transmission module.

4. The fixed pulley rope anti-fall alarm system according to claim 3, characterized in that: The trigger switch module controls the trigger switch and enables a complete closed loop to be formed inside the trigger switch when the trigger lever is pushed by the rotating block. At this time, the trigger switch generates an electrical signal and transmits it to the wireless transmission module. The wireless transmission module receives the electrical signal generated by the trigger switch module, filters it, and then transmits it to the fault handling module. The system issues corresponding alarms for abnormalities. The camera module controls the working status of the camera and can monitor its own power supply status and automatically match the system time. The online transmission module maintains real-time interconnection between the camera module and the remote control module and can feed back the images captured by the camera module to the remote control module in real time. The image storage module transmits the image information fed back from the camera module to the local database for video data storage and supports custom video data storage time, enabling video information to have custom duration traceability.

5. The fixed pulley rope anti-fall alarm system according to claim 3, characterized in that: The image calibration module is used to estimate the camera's internal parameters, including focal length, principal point coordinates, and external parameters, based on the pixel coordinates of feature points and the actual coordinates on the calibration board using a calibration algorithm. The image algorithm module is used to compare the rope status with the set safety threshold range in real time and match the video data of abnormal periods with the system time to the abnormal log module. The abnormal log module is used to store the video data of abnormal periods in the form of a list text and supports the remote control module to retrieve and verify the rope status video of the abnormal period by selecting it.

6. The fixed pulley rope anti-fall alarm system according to claim 3, characterized in that: The buzzer alarm module controls the buzzer component of the CNC terminal and can synchronously drive the buzzer to sound an alarm when the abnormality handling module receives an abnormal alarm signal. The warning light alarm module controls the operating status of the abnormality alarm light in the CNC terminal. When the rope is running normally, the warning light will emit a green light, and when the rope is running abnormally, the warning light will emit a flashing red light. The circuit emergency stop module controls the drive module that drives the rope movement and can cut off the relevant circuits required for rope operation when the rope is running abnormally, so that the rope can stop running.

7. The fixed pulley rope anti-fall alarm system according to claim 3, characterized in that: The video display module controls the CNC terminal's display screen, enabling it to continuously receive the rope status at the fixed pulley captured by the image recording module and display it on the screen for the operator to observe. The fault reset module allows the operator to reset the alarm trigger module at the CNC terminal. The error alarm signal transmitted in the image analysis module is reset, and the abnormal reset module can also control the circuit emergency stop module to restore the normal power supply operation of the rope drive module. The signal sending module is used to classify and transmit the control information input in the abnormal reset module to the image analysis module, alarm triggering module and abnormal processing module, thereby completing the transmission of alarm cancellation and circuit recovery signals.

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