Mobile crane safety monitoring system

Abstract

The application discloses a mobile crane safety supervision system and relates to the technical field of crane safety supervision.The system comprises a detection module, a vision module and a control module.The control module is configured to acquire image information fed back by the vision module, identify the orientation of a hook nameplate and an anti-unhooking tongue piece based on the image information, obtain hook nameplate information and anti-unhooking tongue piece orientation information, establish corresponding data archives based on the hook nameplate information and store the data archives in a preset database, control the detection module to execute a preset pre-operation inspection process based on the anti-unhooking tongue piece orientation information if pre-operation inspection demand information initiated by an operator is received, identify hook mounting based on the image information, and control the detection module to execute a preset operation monitoring process if it is identified that a load is mounted to the bottom of the hook.The application has the effect of improving the reliability and data traceability of hook safety inspection and reducing the incidence of serious safety accidents.

Description

Technical Field

[0001] This application relates to the field of crane safety monitoring technology, and in particular to a mobile crane safety monitoring system. Background Technology

[0002] Mobile cranes (including truck cranes, all-terrain cranes, crawler cranes, etc.) are core lifting equipment in modern engineering construction, and their applications are widespread in many fields such as construction, transportation, and municipal engineering.

[0003] Because of its complex and changeable working environment, heavy workload, and frequent location in construction sites with dense personnel and equipment, the safe operation of the lifting equipment is directly related to the safety of life and property and the smooth progress of the project. Therefore, supervisors need to inspect the lifting equipment before use. Usually, they first visually check whether there is a nameplate or label on the hook, then manually rotate the hook to check its rotation status, then manually move the anti-disengagement tongue on the hook to confirm its reliability, and then use a measuring ruler to measure whether the opening of the hook exceeds the specified requirements. Finally, the supervisors record the inspection results on a paper form.

[0004] The aforementioned inspection process not only relies on the qualifications, experience, and sense of responsibility of the supervisors, but also suffers from problems such as non-standard process execution and easy loss of records due to paper records. Therefore, this application proposes a new technical solution. Summary of the Invention

[0005] In order to improve the reliability and data traceability of hook safety inspections, thereby reducing the incidence of serious safety accidents, this application provides a mobile crane safety monitoring system.

[0006] This application provides a mobile crane safety monitoring system, which adopts the following technical solution:

[0007] A mobile crane safety monitoring system includes:

[0008] The detection module is installed on the crane's pulley guard and located above the hook, and is used to check the condition of the hook;

[0009] The vision module's acquisition range covers the operating area of ​​the hook;

[0010] The control module is electrically connected to the detection module, vision module, and crane control system.

[0011] The control module is configured as follows:

[0012] Obtain image information from the vision module;

[0013] Based on image information, the positional identification of the hook nameplate and the anti-detachment hook tongue is performed to obtain the hook nameplate information and the positional information of the anti-detachment hook tongue.

[0014] A corresponding data file is created based on the hook nameplate information and stored in a preset database;

[0015] If a pre-operation inspection request is received from the operator, the detection module is controlled to execute the preset pre-operation inspection process based on the anti-disengagement tongue position information, and the inspection results are obtained and stored in the corresponding data file.

[0016] Hook attachment identification based on image information;

[0017] If a load is detected attached to the bottom of the hook, the detection module is controlled to execute the preset monitoring process during operation, obtain real-time monitoring information, and store it in the corresponding data file;

[0018] If the real-time monitoring information meets the preset dangerous conditions, the pre-connected crane control system will stop operating and send an alarm notification to the designated personnel.

[0019] Optionally, the detection module includes an assembly ring, a moving rod, a telescopic rod, a drive mechanism, and a telescopic mechanism. The assembly ring is annular and fixedly sleeved on the outer wall of the pulley guard and located above the hook. The moving rod is slidably connected to the assembly ring. The drive mechanism is installed on the assembly ring and its drive end is connected to the moving rod, used to drive the moving rod to move circumferentially along the assembly ring. The moving rod is hollow with an opening at the lower end and extends toward the anti-disengagement tongue. The telescopic rod is slidably inserted through the moving rod, and the lower end of the telescopic rod extends out of the opening of the moving rod and is movably connected to a locking block. The locking block is used to detachably engage with the anti-disengagement tongue. The locking block is equipped with a pressure sensor for detecting its stress. The telescopic mechanism is located on the moving rod and is used to drive the telescopic rod to extend and retract. The control module is electrically connected to the drive mechanism, the telescopic mechanism, and the pressure sensor.

[0020] The control module executes a pre-operation check process, which includes:

[0021] Based on the orientation information of the anti-disengagement tongue, the control drive mechanism executes the alignment command of the moving rod;

[0022] When a signal is received from the drive mechanism after completing the corresponding instruction, the telescopic mechanism is controlled to execute the telescopic rod extension instruction.

[0023] Obtain pressure information fed back by the pressure sensor;

[0024] If the pressure information meets the preset condition of tongue rotation obstruction, it is determined that the anti-disengagement tongue rotation is abnormal, and the telescopic mechanism is controlled to stop operating and a matching prompt is output to the designated personnel.

[0025] When a signal is received from the telescopic mechanism after it has completed the corresponding instruction, the drive mechanism is controlled to execute the command to rotate the moving rod.

[0026] If feedback from the drive mechanism indicates that rotation is obstructed, it is determined that the hook rotation is abnormal, and the drive mechanism is controlled to stop operating and a matching prompt is output to the designated personnel.

[0027] Optionally, the control module executes a pre-operation inspection process, which includes:

[0028] When a signal is received that the telescopic mechanism has started to extend the telescopic rod, the timing starts based on the current time and stops when the pressure sensor indicates that it has contacted the anti-disengagement tongue, thus obtaining the duration t.

[0029] The distance value x is calculated based on the duration t and the pre-stored telescopic mechanism drive speed parameter v;

[0030] The distance value x is compared with the preset installation distance reference value l. If the distance value x is greater than the installation distance reference value l, it is determined that the anti-detachment tongue is not closed, and a matching prompt is output to the designated personnel.

[0031] Optionally, a distance measuring sensor is installed on both the side of the locking block facing the hook tip and the side facing away from the hook tip. The detection end of the distance measuring sensor is perpendicular to the direction of movement of the telescopic rod. The control module executes a pre-operation inspection procedure, which further includes:

[0032] Obtain distance information fed back by the ranging sensor;

[0033] When a signal is received after the telescopic mechanism completes the corresponding instruction, two distance information 'a' are called up, and the two distance information 'a' are added to the pre-stored card block thickness reference value 'h' to obtain the total distance value 'L', and it is determined whether the total distance value 'L' exceeds the preset opening degree qualified range.

[0034] If the value exceeds the limit, it is determined that the hook opening is out of standard, and a matching prompt is sent to the designated personnel.

[0035] Optionally, the driving mechanism includes a gear, a slip ring, and a drive motor. The slip ring is rotatably sleeved on the assembly ring. The upper end of the moving rod is fixedly connected to the slip ring. The drive motor is fixedly installed on the outer wall of the assembly ring. The output shaft of the drive motor is coaxially fixed with the gear. The slip ring has a tooth structure along its circumference that meshes with the gear.

[0036] Optionally, the telescopic mechanism includes a lead screw, a limiting block, and a telescopic motor. The lead screw rotatably passes through the inner cavity of the moving rod and is threadedly connected to the telescopic rod. The limiting block is fixedly connected to the inner wall of the moving rod. The telescopic rod is slidably connected to the limiting block. The telescopic motor is fixedly installed in the inner cavity of the moving rod and is coaxially fixed with the lead screw.

[0037] Optionally, the upper end of the locking block has a through groove for the end of the telescopic rod to pass through, the pressure sensor is installed in the through groove, the end of the telescopic rod abuts against the detection end of the pressure sensor, and the lower end of the locking block has a locking groove for the anti-disengagement tongue to be engaged.

[0038] Optionally, the control module executes a monitoring process during operation, which includes: identifying the status of the anti-detachment hook based on image information; if the anti-detachment hook is identified as not closed, it is determined to meet the dangerous conditions.

[0039] In summary, this application includes the following beneficial technical effects: the status of the crane hook is checked before operation, and the entire process is guided and recorded intelligently. Furthermore, the status of the hook is monitored in real time during operation. This not only replaces the traditional manual inspection, but also allows for electronic storage of the inspection results, improving the reliability and data traceability of hook safety inspections, thereby reducing the incidence of serious safety accidents. Attached Figure Description

[0040] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application.

[0041] Figure 2 This is a connection block diagram of the control module in an embodiment of this application.

[0042] Figure 3 This is a schematic diagram of the assembly ring in an embodiment of this application.

[0043] Figure 4 This is a cross-sectional view of the telescopic rod in an embodiment of this application.

[0044] Explanation of reference numerals in the attached drawings: 1. Detection module; 2. Vision module; 3. Assembly ring; 4. Moving rod; 5. Telescopic rod; 6. Drive mechanism; 7. Telescopic mechanism; 51. Locking block; 52. Pressure sensor; 53. Slot; 54. Distance sensor; 61. Gear; 62. Slip ring; 63. Drive motor; 71. Lead screw; 72. Telescopic motor. Detailed Implementation

[0045] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.

[0046] This application discloses a mobile crane safety monitoring system.

[0047] This application inspects and monitors the status of the hook on the crane, and the hook type is a rotating hook with bearings, that is, the hook and the pulley guard at the end of the crane boom are connected by bearings, and the hook opening is provided with an anti-disengagement tongue, the upper end of the anti-disengagement tongue is hinged to the arc-shaped inner wall of the hook near the top, and a spring is provided at the hinge point of the anti-disengagement tongue.

[0048] Reference Figure 1 and Figure 2 The mobile crane safety monitoring system includes a detection module 1, a vision module 2, and a control module. The detection module 1 is installed on the crane's pulley guard and above the hook to check the hook's status. The vision module 2 is a camera installed at the head of the crane boom or other suitable location, and its acquisition range covers the operating area of ​​the hook. The control module is a PLC controller or MCU controller, which is electrically connected to the detection module 1, the vision module 2, and the crane control system for electrical control.

[0049] The control module is configured as follows:

[0050] 1) Obtain image information fed back by vision module 2;

[0051] 2) Based on image information, identify the position of the hook nameplate and the anti-detachment hook tongue to obtain the hook nameplate information and the anti-detachment hook tongue position information;

[0052] It is understandable that the image information is processed and imported into the existing recognition model to obtain the orientation of the hook nameplate and the anti-detachment tongue, which facilitates subsequent operations.

[0053] 3) Create a corresponding data file based on the hook nameplate information and store it in a preset database;

[0054] Understandably, each hook nameplate corresponds to an independent data file, thus forming an electronic file to replace traditional paper records, making it easier to trace and preserve the data.

[0055] 4) If the operator receives a pre-operation inspection request, the pre-set pre-operation inspection process is executed based on the anti-detachment tongue position information control detection module 1, and the inspection results are obtained and stored in the corresponding data file.

[0056] Understandably, the operator can trigger a pre-operation check of requirements by pressing a button pre-installed in the crane's control room, whose control circuit is electrically connected to the control module.

[0057] 5) Hook loading recognition based on image information (by importing existing recognition models);

[0058] 6) If a load is detected attached to the bottom of the hook (then it is considered that the operation has started), the control detection module 1 will execute the preset operation monitoring process, obtain real-time monitoring information, and store it in the corresponding data file;

[0059] 7) If the real-time monitoring information meets the preset danger conditions, the pre-connected crane control system will stop operating and send an alarm prompt to the designated personnel, such as immediately dialing the pre-stored mobile phone number of the designated personnel.

[0060] Understandably, the dangerous condition refers to: based on image information imported into the existing recognition model, the status of the anti-detachment hook tongue is identified, and it is determined whether the anti-detachment hook tongue is in the correct closed position. If it is identified that the anti-detachment hook tongue is not closed, it is determined to meet the dangerous condition.

[0061] With the above settings, the status of the crane hook is checked before operation, and the entire process is intelligently guided and recorded. The status of the hook is also monitored in real time during operation. This not only replaces the traditional manual inspection, but also allows for electronic storage of inspection results, improving the reliability and traceability of hook safety inspections, thereby reducing the incidence of serious safety accidents.

[0062] Reference Figure 3 In another embodiment of this application, the detection module 1 includes an assembly ring 3, a moving rod 4, a telescopic rod 5, a drive mechanism 6, and a telescopic mechanism 7. The assembly ring 3 is annular and fixedly sleeved on the outer wall of the pulley guard and located above the hook. The moving rod 4 is slidably connected to the assembly ring 3. The drive mechanism 6 is installed on the assembly ring 3 and its drive end is connected to the moving rod 4, which is used to drive the moving rod 4 to move circumferentially along the assembly ring 3.

[0063] Reference Figure 4 The movable rod 4 is hollow with an opening at the lower end and extends at an angle toward the anti-disengagement tongue. The telescopic rod 5 slides through the movable rod 4 along its length and is inserted into the movable rod 4. The lower end of the telescopic rod 5 extends out of the opening of the movable rod 4 and is movably connected to a locking block 51. The upper end of the locking block 51 has a through groove for the end of the telescopic rod 5 to pass through. A pressure sensor 52 is installed on the inner wall of the through groove. The end of the telescopic rod 5 abuts against the detection end of the pressure sensor 52 to detect its stress.

[0064] The lower end of the locking block 51 is provided with a locking groove 53 for the anti-disengagement tongue to be inserted. The telescopic mechanism 7 is set on the moving rod 4 and is used to drive the telescopic rod 5 to extend and retract. Thus, under the driving extension and retraction of the telescopic rod 5 by the telescopic mechanism 7, the locking groove 53 of the locking block 51 and the anti-disengagement tongue can be driven to achieve a locking or disengaging state.

[0065] The control module is electrically connected to the drive mechanism 6, the telescopic mechanism 7, and the pressure sensor 52, and the control module performs a pre-operation check process, which includes:

[0066] 1) Based on the orientation information of the anti-disengagement tongue, the control drive mechanism 6 executes the alignment command of the moving rod 4;

[0067] Understandably, since the hook and pulley guard can rotate relative to each other, it is necessary to know the position of the anti-disengagement tongue, i.e., the angle it faces; the alignment command of the moving rod 4 refers to controlling the drive mechanism 6 to adjust the position of the moving rod 4 so that the moving rod 4 corresponds to the position of the anti-disengagement tongue.

[0068] 2) When the signal fed back by the drive mechanism 6 after completing the corresponding instruction is received, the telescopic mechanism 7 is controlled to execute the extension instruction of the telescopic rod 5;

[0069] It is understandable that the extension command of telescopic rod 5 refers to the telescopic mechanism 7 controlling the extension of telescopic rod 5, thereby causing telescopic rod 5 to move the locking block 51 closer to the anti-detachment tongue, and causing the anti-detachment tongue to engage in the locking groove 53 of the locking block 51. When the locking block 51 contacts the anti-detachment tongue, it will transmit the force to the internal pressure sensor 52. It should be noted that in order not to affect the normal lifting operation of the hook, the telescopic rod 5 is retracted into the moving rod 4 in the initial state and after the pre-operation inspection is completed.

[0070] 3) Obtain the pressure information fed back by pressure sensor 52;

[0071] 4) If the pressure information meets the preset condition of tongue rotation obstruction, it is determined that the anti-disengagement tongue rotation is abnormal, and the telescopic mechanism 7 is controlled to stop the action and a matching prompt is output to the designated personnel.

[0072] Understandably, when the telescopic rod 5 moves the locking block 51 downward and pushes the anti-disengagement tongue to rotate, if the anti-disengagement tongue does not rotate flexibly or gets stuck, the pressure value detected by the pressure sensor 52 will increase instantaneously, which meets the condition that the tongue rotation is obstructed. At this time, it is not advisable to continue rotating to prevent more serious damage, such as the anti-disengagement tongue breaking. Therefore, the telescopic mechanism 7 is controlled to stop operating and a text message or voice notification of the abnormal tongue rotation is sent to the designated personnel.

[0073] 5) When a signal is received from the telescopic mechanism 7 after completing the corresponding instruction (such as the telescopic mechanism 7 extending the telescopic rod 5 to the preset maximum value), the drive mechanism 6 is controlled to execute the instruction to rotate the moving rod 4.

[0074] Understandably, if the telescopic mechanism 7 can extend the telescopic rod 5 to the preset maximum value, it means that the anti-disengagement tongue is rotating normally. Then, the rotation status of the hook is checked, thereby controlling the drive mechanism 6 to drive the moving rod 4 to rotate along the assembly ring 3. Since the slot 53 of the locking block 51 has been engaged with the anti-disengagement tongue, the moving rod 4 can drive the hook to rotate synchronously when it rotates.

[0075] 6) If feedback from the drive mechanism 6 indicates that rotation is obstructed, it is determined that the hook rotation is abnormal, and the drive mechanism 6 is controlled to stop its operation and output a matching prompt (such as sending a text message or voice message indicating that the hook rotation is abnormal) to the designated personnel.

[0076] Understandably, if the drive mechanism 6 detects a sudden increase in rotational resistance, it will determine that the hook rotation is abnormal.

[0077] Through the above settings, the locking block 51 is first engaged with the anti-disengagement tongue, and then the extension of the telescopic rod 5 is used to push the anti-disengagement tongue to rotate in order to test the flexibility of the tongue rotation. After that, the locking action between the locking block 51 and the anti-disengagement tongue is used to drive the moving rod 4 to rotate, thereby driving the hook to rotate synchronously in order to test the hook rotation status, thus realizing multiple functions of one component.

[0078] In another embodiment of this application, to further enhance the pre-operation check of whether the anti-detachment tongue is closed, the control module executes a pre-operation check process, which includes:

[0079] 1) When the signal is received from the telescopic mechanism 7 when it starts to execute the extension command of the telescopic rod 5, the timing starts based on the current time and stops when the feedback from the pressure sensor 52 indicates that it has contacted the anti-disengagement tongue, and the duration t is obtained.

[0080] 2) The distance value x is calculated based on the duration t and the pre-stored driving speed parameter v of the telescopic mechanism 7 (i.e., the speed at which the telescopic mechanism 7 drives the telescopic rod 5 to move).

[0081] 3) Compare the distance value x with the preset installation distance reference value l (e.g., the distance between the end block 51 and the anti-detachment tongue when the telescopic rod 5 is retracted into the moving rod 4). If the distance value x is greater than the installation distance reference value l, it is determined that the anti-detachment tongue is not closed (i.e., there is a gap between the end of the anti-detachment tongue away from the hinge point and the hook tip), and a matching prompt is output to the designated personnel.

[0082] With the above settings, the time taken for the synchronous timing block 51 to contact the anti-detachment tongue when the telescopic rod 5 extends is calculated to determine whether the anti-detachment tongue is closed, so as to ensure the safety of the subsequent lifting load by the hook and prevent the load from slipping.

[0083] In another embodiment of this application, in order to detect the opening degree of the hook tip, a distance sensor 54 is installed on the side of the locking block 51 facing the hook tip and the side away from the hook tip, respectively. The detection end of the distance sensor 54 is perpendicular to the moving direction of the telescopic rod 5. The control module executes a pre-operation inspection process, which further includes:

[0084] 1) Obtain the distance information a fed back by each of the two ranging sensors 54;

[0085] 2) When the signal is received after the telescopic mechanism 7 completes the corresponding instruction (at this time, the locking block 51 pushes the anti-disengagement tongue to rotate, and the locking block 51 is located inside the hook opening), the two distance information a are called up, and the two distance information a are added to the pre-stored locking block thickness reference value h to obtain the total distance value L (i.e. the hook opening degree), and it is determined whether the total distance value L exceeds the preset opening degree qualified range (such as exceeding 10% of the original size).

[0086] 3) If it exceeds the limit, it is determined that the hook opening is out of standard, and a matching prompt is sent to the designated personnel in the same way as above.

[0087] With the above settings, the opening degree of the hook can be measured in one go.

[0088] Reference Figure 3 Based on the above, the drive mechanism 6 includes a gear 61, a slip ring 62, and a drive motor 63. The slip ring 62 is rotatably sleeved on the assembly ring 3. The upper end of the moving rod 4 is fixedly connected to the bottom of the slip ring 62. The drive motor 63 is fixedly installed on the top of the assembly ring 3. The output shaft of the drive motor 63 is coaxially fixed with the gear 61. The slip ring 62 has a tooth structure that meshes with the gear 61 along its circumference. The drive motor 63 is covered with a protective cover.

[0089] With the above setup, a torque sensor is installed on the output shaft of the drive motor 63 to measure the resistance it receives, thereby determining whether the hook rotation is abnormal.

[0090] Reference Figure 3 and Figure 4 The telescopic mechanism 7 includes a lead screw 71, a limiting block, and a telescopic motor 72. The lead screw 71 is rotatably inserted into the inner cavity of the moving rod 4 via a bearing and is threadedly connected to the telescopic rod 5. The limiting block (not shown in the figure) is fixedly connected to the inner wall of the moving rod 4. The telescopic rod 5 is slidably connected to the limiting block. The telescopic motor 72 is fixedly installed in the inner cavity of the moving rod 4 and drives the lead screw 71 to rotate through a gear structure. Thus, the telescopic motor 72 drives the lead screw 71 to rotate, thereby causing the telescopic rod 5 to extend, so as to drive the locking block 51 to apply force to the anti-disengagement tongue.

[0091] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A mobile crane safety monitoring system, characterized in that, include: The detection module (1) is installed on the pulley guard of the crane and located above the hook, and is used to check the status of the hook; The vision module (2) has a collection range that covers the operating area of ​​the hook; The control module is electrically connected to the detection module (1), the vision module (2), and the crane control system; The control module is configured as follows: Obtain image information fed back by the vision module (2); Based on image information, the positional identification of the hook nameplate and the anti-detachment hook tongue is performed to obtain the hook nameplate information and the positional information of the anti-detachment hook tongue. A corresponding data file is created based on the hook nameplate information and stored in a preset database; If the operator receives a pre-operation inspection request, the pre-operation inspection process is executed based on the anti-disengagement tongue position information control detection module (1), and the inspection results are obtained and stored in the corresponding data file. Hook attachment identification based on image information; If a load is detected attached to the bottom of the hook, the control detection module (1) executes the preset monitoring process during operation, obtains real-time monitoring information, and stores it in the corresponding data file; If the real-time monitoring information meets the preset dangerous conditions, the pre-connected crane control system will stop operating and send an alarm notification to the designated personnel.

2. The mobile crane safety monitoring system according to claim 1, characterized in that: The detection module (1) includes an assembly ring (3), a moving rod (4), a telescopic rod (5), a drive mechanism (6), and a telescopic mechanism (7). The assembly ring (3) is annular and fixedly sleeved on the outer wall of the pulley guard and located above the hook. The moving rod (4) is slidably connected to the assembly ring (3). The drive mechanism (6) is installed on the assembly ring (3) and its drive end is connected to the moving rod (4), which is used to drive the moving rod (4) to move circumferentially along the assembly ring (3). The moving rod (4) is hollow and has an open lower end facing the anti-disengagement hook. The tongue extends, the telescopic rod (5) slides through the moving rod (4), and the lower end of the telescopic rod (5) extends out of the opening of the moving rod (4) and is movably connected to a locking block (51). The locking block (51) is used to detachably engage with the anti-disengagement tongue. The locking block (51) is provided with a pressure sensor (52) for detecting its force. The telescopic mechanism (7) is provided on the moving rod (4) and is used to drive the telescopic rod (5) to extend and retract. The control module is electrically connected to the drive mechanism (6), the telescopic mechanism (7) and the pressure sensor (52). The control module executes a pre-operation check process, which includes: Based on the orientation information of the anti-disengagement tongue, the control drive mechanism (6) executes the positioning command of the moving rod (4); When the signal is received from the drive mechanism (6) after completing the corresponding instruction, the telescopic mechanism (7) is controlled to execute the extension instruction of the telescopic rod (5); Obtain the pressure information fed back by the pressure sensor (52); If the pressure information meets the preset condition of tongue rotation obstruction, it is determined that the anti-disengagement tongue rotation is abnormal, and the telescopic mechanism (7) is controlled to stop the action and output a matching prompt to the designated personnel. When a signal is received from the telescopic mechanism (7) after completing the corresponding instruction, the drive mechanism (6) is controlled to execute the instruction to rotate the moving rod (4); If feedback is received from the drive mechanism (6) indicating that the rotation is obstructed, it is determined that the hook rotation is abnormal, and the drive mechanism (6) is controlled to stop its operation and output a matching prompt to the designated personnel.

3. The mobile crane safety monitoring system according to claim 2, characterized in that: The control module executes a pre-operation check process, which includes: When the signal is received from the telescopic mechanism (7) when it starts to execute the extension command of the telescopic rod (5), the timing starts based on the current time and stops when the feedback from the pressure sensor (52) indicates that it has contacted the anti-disengagement tongue, and the duration t is obtained. The distance value x is calculated based on the duration t and the pre-stored driving speed parameter v of the telescopic mechanism (7); The distance value x is compared with the preset installation distance reference value l. If the distance value x is greater than the installation distance reference value l, it is determined that the anti-detachment tongue is not closed, and a matching prompt is output to the designated personnel.

4. The mobile crane safety monitoring system according to claim 2, characterized in that: The locking block (51) is equipped with a distance measuring sensor (54) on the side facing the hook tip and the side away from the hook tip, respectively. The detection end of the distance measuring sensor (54) is perpendicular to the movement direction of the telescopic rod (5). The control module performs a pre-operation inspection process, which also includes: Obtain the distance information a fed back by the two ranging sensors (54); When the signal is received after the telescopic mechanism (7) completes the corresponding instruction, the two distance information a are called and the two distance information a are added to the pre-stored card block thickness reference value h to obtain the total distance value L, and it is determined whether the total distance value L exceeds the preset opening degree qualified range. If the value exceeds the limit, it is determined that the hook opening is out of standard, and a matching prompt is sent to the designated personnel.

5. The mobile crane safety monitoring system according to claim 2, characterized in that: The drive mechanism (6) includes a gear (61), a slip ring (62), and a drive motor (63). The slip ring (62) is rotatably sleeved on the assembly ring (3). The upper end of the moving rod (4) is fixedly connected to the slip ring (62). The drive motor (63) is fixedly installed on the outer wall of the assembly ring (3). The output shaft of the drive motor (63) is coaxially fixed with the gear (61). The slip ring (62) has a tooth structure along its circumference that meshes with the gear (61).

6. The mobile crane safety monitoring system according to claim 2, characterized in that: The telescopic mechanism (7) includes a lead screw (71), a limiting block, and a telescopic motor (72). The lead screw (71) is rotatably inserted into the inner cavity of the moving rod (4) and threadedly connected to the telescopic rod (5). The limiting block is fixedly connected to the inner wall of the moving rod (4). The telescopic rod (5) is slidably connected to the limiting block. The telescopic motor (72) is fixedly installed in the inner cavity of the moving rod (4) and is used to drive the lead screw (71) to rotate.

7. The mobile crane safety monitoring system according to claim 2, characterized in that: The upper end of the locking block (51) is provided with a through groove for the end of the telescopic rod (5) to pass through. The pressure sensor (52) is installed in the through groove. The end of the telescopic rod (5) abuts against the detection end of the pressure sensor (52). The lower end of the locking block (51) is provided with a locking groove (53) for the anti-disengagement tongue to be inserted.

8. The mobile crane safety monitoring system according to claim 1, characterized in that: The control module executes a monitoring process during operation, which includes: identifying the status of the anti-detachment tongue based on image information; if the anti-detachment tongue is identified as not closed, it is determined to meet the dangerous conditions.

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