Elevator steel wire rope state monitoring device and method

Abstract

The application discloses an elevator steel wire rope state monitoring device and method, and relates to the technical field of elevator monitoring, which comprises a structured light scanning module, a system host, an elevator operation state monitoring module, a safety protection module, a power module, a communication module, a cloud management system, a PC client and a mobile client; the structured light scanning module is installed in the elevator steel wire rope assembly and connected with the system host; the structured light scanning module comprises a wheel groove scanning module, a rope head scanning module and a broken strand scanning module; the wheel groove scanning module is used for acquiring position data of the steel wire rope in the wheel groove; the rope head scanning module is used for acquiring position data of the steel wire rope head assembly during extension and contraction; and the broken strand scanning module is used for acquiring position data of the outer contour of the steel wire rope; the system host is used for processing data obtained by the structured light scanning module and judging state changes of the steel wire rope; the application can realize real-time dynamic monitoring of the state of the elevator steel wire rope, improve the monitoring coverage range and improve the troubleshooting and resetting efficiency.

Description

Technical Field

[0001] This invention relates to the field of elevator monitoring technology, and in particular to an elevator wire rope condition monitoring device and method. Background Technology

[0002] Vertical elevators typically use multiple steel wire ropes to move the elevator car. The two ends of the steel wire ropes are connected to the car and the counterweight, respectively, and are wound around the traction sheave and guide sheave. The traction machine drives the traction sheave to rotate, and the traction force generated by the friction between the steel wire rope and the traction sheave realizes the lifting and lowering movement of the car and the counterweight to achieve the purpose of transportation.

[0003] As a crucial component of elevator operation, the steel wire rope must be kept within the wheel groove. If the steel wire rope detaches from the groove, it can come into contact with components such as the counterweight sheave shaft. This can lead to severe wear and breakage of the sheave shaft, causing the car to fall and resulting in personal injury and property damage.

[0004] It is also necessary to ensure that the tension and strain on each wire rope are uniform during elevator operation. If the tension or strain on the wire ropes bearing the same load on the same side is too different, it can easily cause the traction sheave and wire rope to wear out faster, creating safety hazards. At the same time, attention should also be paid to the phenomenon of broken strands in the wire rope. If broken strands in the wire rope are not dealt with in time, it will cause the wire rope to jump out of the groove, resulting in greater casualties and property losses.

[0005] To address the aforementioned issues, regular inspections and maintenance of elevator steel cables are necessary. Currently, most elevator management companies rely on manual shutdowns for these inspections and maintenance, which requires significant manpower and resources. Furthermore, the inspection process is extremely tedious, necessitating checks of the steel cables in every working area of ​​the elevator. This manual shutdown method fails to provide real-time information about the elevator's operational status. Therefore, this method of regular manual inspection and maintenance cannot guarantee elevator safety during operation and is prone to malfunctions due to incomplete inspections or errors in the work.

[0006] This invention aims to monitor the condition of elevator wire ropes in real time. When the condition of the wire rope changes, a safety protection mechanism can be activated to keep the elevator in a safe state, avoiding major casualties and property damage accidents. At the same time, it can detect the condition of the elevator wire rope in the pulley groove, the tension of the rope head, and the condition of broken strands, playing a good role in accident prevention and risk warning. Summary of the Invention

[0007] The purpose of this invention is to provide an elevator wire rope condition monitoring device and method. When the condition of the wire rope changes, a safety protection mechanism can be activated to keep the elevator in a safe state, avoiding major casualties and property damage accidents. At the same time, it can detect the condition of the elevator wire rope in the pulley groove, the tension of the rope head, and the condition of broken strands in the wire rope, playing a good role in accident prevention and risk warning.

[0008] The objective of this invention is achieved through the following technical solution:

[0009] An elevator wire rope status monitoring device includes an elevator wire rope assembly and a monitoring assembly. The elevator wire rope assembly includes a wire rope, a wheel groove, and a wire rope head assembly. The monitoring assembly includes a structured light scanning module, a system host, an elevator operation status monitoring module, a safety protection module, a power supply module, a communication module, a cloud management system, a PC client, and a mobile client.

[0010] The structured light scanning module is installed inside the elevator wire rope assembly and is connected to the system host. The structured light scanning module includes a wheel groove scanning module, a rope head scanning module, and a broken strand scanning module. The wheel groove scanning module is used to acquire the position data of the wire rope in the wheel groove. The rope head scanning module is used to acquire the position data of the wire rope head assembly when it extends or retracts. The broken strand scanning module is used to acquire the position data of the outer contour of the wire rope.

[0011] The system host is used to process the data obtained by the structured light scanning module and determine the state changes of the wire rope. The system host is connected to the elevator operation monitoring module, the power supply module, the safety protection module and the communication module respectively.

[0012] The elevator operation status monitoring module is used to monitor the current operation status of the elevator;

[0013] The safety protection module is used to activate the safety circuit that cuts off the elevator, causing the elevator to stop running;

[0014] The communication module is used to send alarm information to the cloud management system;

[0015] The PC client and mobile client receive alarm information through the cloud management system.

[0016] Furthermore, each of the wheel groove scanning modules is respectively arranged above each of the wheel grooves, and the strand break scanning module is arranged facing the wire rope.

[0017] Furthermore, the wire rope end assembly includes a rope end rod, a compression spring, an upper pad, and a lower pad. The rope end rod passes through the upper pad and the lower pad. One end of the rope end rod extending out of the lower pad is connected to the end of the wire rope. Both ends of the compression spring are fixedly connected to the upper pad and the lower pad, respectively. The compression spring is sleeved outside the rope end rod. One end of the rope end rod extending out of the upper pad is locked by a fixing nut. A light target is provided on the side of the upper pad near the fixing nut. The rope end scanning module is positioned above the light target.

[0018] A method for monitoring the condition of elevator wire ropes includes the following steps:

[0019] S1: The system host starts up, the elevator operation status monitoring module monitors the elevator operation in real time, the wheel groove scanning module obtains the initial data of the outline points of the wire rope in the wheel groove, the rope end scanning module scans and obtains the initial data of the optical target position, and the broken strand scanning module obtains the initial data of the outer outline points of the wire rope; the system host records the above initial data and sets it as the reference value.

[0020] S2: The elevator is running normally. The wheel groove scanning module, rope head scanning module and broken strand scanning module continue to scan and transmit real-time data to the system host respectively.

[0021] S3: The system host processes and analyzes the data returned in step S2 to determine the state changes of the wire rope;

[0022] S4: When the system host detects a change in the state of the wire rope and the elevator operation status monitoring module detects that the elevator is stopped, the safety protection module will activate the safety circuit to cut off the elevator, causing the elevator to stop. At the same time, the communication module will send an alarm message to the cloud management system, and the cloud management system will push the alarm message to the PC client and mobile client.

[0023] When the system host detects a change in the wire rope's condition, but the elevator operation status monitoring module detects that the elevator is running, the system will wait until the elevator operation status monitoring module detects that the elevator is stopped. Then, the safety protection module will activate and cut off the elevator's safety circuit, stopping the elevator from use. The system will also send an alarm message to the cloud management system via the communication module, and the cloud management system will push the alarm message to the PC client and mobile client.

[0024] S5: After receiving the alarm signal via PC and mobile clients, professionals reset the wire rope. The structured light scanning module continuously scans, and the system host determines whether the wire rope has been reset. If the wire rope is reset, the safety protection module is reset, and the elevator operates normally. If the wire rope is not reset, an alarm message is sent to the cloud management system via the communication module, and the cloud management system pushes the alarm message to the PC and mobile clients.

[0025] Further, the specific steps for the wheel groove scanning module to obtain the initial data of the contour points of the steel wire rope in the wheel groove in step S1 are as follows: A coordinate system is established for the wheel groove scanning module; the wheel groove scanning module scans the k steel wire ropes in the wheel groove; the coordinates of the peak value of the contour of the first steel wire rope in the wheel groove are defined as follows: The coordinates of the peak value of the profile of the k-th wire rope within the groove are: Under normal circumstances, the ordinate of each peak Let 'a' be a fixed constant, and denote the ordinate of each peak. The allowable deviation is b, where b satisfies ,in Let be the ordinate of any wire rope within the groove.

[0026] Further, the specific steps for the rope end scanning module to acquire the initial data of the upper surface points of the optical target at the end of the wire rope in step S1 are as follows: A coordinate system is established for each rope end scanning module. When the k-th rope end scanning module scans the k-th optical target and obtains the coordinates of each upper surface point of the optical target, the coordinates of the upper surface point of the 1st optical target are denoted as... The coordinates of the kth point on the upper surface of the target are Since the tension at each wire rope end is uniform in the initial state, the coordinate change of each optical target in the Y-axis direction is the same. The change in the coordinate value of a point on the upper surface of the optical target in the Y-axis direction is denoted as... .

[0027] Further, the specific steps of obtaining the initial contour point data of the wire rope by the strand scanning module in step S1 are as follows: A coordinate system is established for the strand scanning module. The strand scanning module scans K wire ropes. The K wire ropes do not change in the Y-axis direction. The range of motion of the K wire ropes in the X-axis direction is determined by two horizontal coordinates, where the range of motion of the first wire rope is within... Between, the range of motion of the Kth wire rope is Between the two adjacent steel wire ropes, there is a blank area between their range of motion.

[0028] Furthermore, the specific steps for the system host to determine the state of the wire rope in the wheel groove in step S3 are as follows: when the wire rope in the wheel groove jumps out of the groove, .

[0029] Furthermore, the specific steps for the system host to determine the state of the wire rope end in step S3 are as follows: when the tension of the Nth wire rope end changes, or .

[0030] Further, the specific steps for the system host to determine the broken strand state of the wire rope in step S3 are as follows: Record that the small strand formed by the broken strand appears between the Nth and N+1th wire ropes within their range of motion; the broken strand scanning module scans during this process... and The coordinates of point M on the small rope strand will be obtained at point M between them. When the elevator is running, the broken strand scanning module obtains the coordinates of a series of M points. ,and exist and It appears continuously within the interval.

[0031] The beneficial effects of this invention are:

[0032] 1) Real-time dynamic monitoring of the elevator wire rope condition. When the condition of the wire rope changes, the safety protection mechanism can be activated to keep the elevator in a safe state, avoiding major casualties and property damage accidents. At the same time, the condition of the elevator wire rope in the wheel groove, the tension of the rope head, and the condition of broken strands of the wire rope can be detected, which plays a very good role in accident prevention and risk warning.

[0033] 2) The wheel groove scanning module, rope end scanning module, and broken strand scanning module can scan and monitor all wheel grooves, wire ropes, and rope ends within the elevator wire rope assembly. Simultaneously, the structured light scanning module emits a fan-shaped structured beam, greatly improving the monitoring coverage. Furthermore, professionals can quickly locate abnormal wire rope conditions, improving the efficiency of troubleshooting and resetting. Attached Figure Description

[0034] Figure 1 This is a schematic diagram of an elevator wire rope condition monitoring device according to the present invention;

[0035] Figure 2 This is a flowchart of a method for monitoring the condition of elevator wire ropes according to the present invention;

[0036] Figure 3 This is a schematic diagram of the wheel groove and wheel groove scanning module in this invention;

[0037] Figure 4 This is a schematic diagram showing the nth wire rope detaching from the groove in the present invention;

[0038] Figure 5 This is a schematic diagram of the wire rope end assembly and the rope end scanning module in this invention;

[0039] Figure 6 This is a schematic diagram showing the change in tension at the Nth wire rope end in this invention;

[0040] Figure 7 This is a schematic diagram of the wire rope and strand scanning module in this invention;

[0041] Figure 8 This is a schematic diagram showing the small rope strands formed by the interrupted strands of the present invention appearing between the Nth and N+1th wire ropes;

[0042] In the diagram, 11-Groove scanning module, 12-Strand break scanning module, 13-Rope end scanning module, 21-Wire rope, 22-Groove, 221-Elevator traction sheave, 222-Guide sheave, 223-Counterweight side anti-reverse rope sheave, 224-Compensating wire rope tensioning sheave, 225-Car side anti-reverse rope sheave, 226-Speed ​​governor sheave, 227-Speed ​​governor tensioning sheave, 23-Wire rope end assembly, 231-Rope end tie rod, 232-Upper pad, 233-Lower pad, 234-Compression spring, 235-Fixing nut, 236-Optical target, 3-System host, 4-Cloud management system, 5-PC client, 6-Mobile client. Detailed Implementation

[0043] The technical solution of the present invention will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. 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.

[0044] See Figures 1-8 The present invention provides a technical solution:

[0045] like Figures 1-8 As shown, an elevator wire rope status monitoring device includes an elevator wire rope assembly and a monitoring assembly. The elevator wire rope assembly includes a wire rope, a wheel groove 22, and a wire rope head assembly 23. The monitoring assembly includes a structured light scanning module, a system host 3, an elevator operation status monitoring module, a safety protection module, a power supply module, a communication module, a cloud management system 4, a PC client 5, and a mobile client 6.

[0046] The structured light scanning module is installed inside the elevator wire rope assembly and is connected to the system host 3. The structured light scanning module includes a wheel groove scanning module, a rope head scanning module 13, and a strand break scanning module 12. The wheel groove scanning module 11 is used to obtain the position data of the wire rope in the wheel groove 22, the rope head scanning module 13 is used to obtain the position data of the wire rope head assembly 23 when it extends or retracts, and the strand break scanning module 12 is used to obtain the position data of the outer contour of the wire rope 21.

[0047] The system host 3 is used to process the data obtained by the structured light scanning module and determine the state changes of the wire rope. The system host 3 is connected to the elevator operation monitoring module, the power supply module, the safety protection module and the communication module respectively.

[0048] The elevator operation status monitoring module is used to monitor the current operation status of the elevator;

[0049] The safety protection module is used to activate the safety circuit that cuts off the elevator, causing the elevator to stop running;

[0050] The communication module is used to send alarm information to the cloud management system 4;

[0051] The PC client 5 and mobile client 6 receive alarm information through the cloud management system 4.

[0052] The elevator wire rope assembly, as described above, includes an elevator traction sheave 221, a guide sheave 222, a counterweight-side anti-cord sheave 223, a compensating wire rope tensioning sheave 224, a car-side anti-cord sheave 225, a speed governor sheave 226, and a speed governor tensioning sheave 227. Each of these sheaves has a groove 22, and therefore, each sheave is equipped with a groove scanning module 11. The groove scanning module 11 scans and detects the wire rope data in each groove 22. Simultaneously, a strand breakage scanning module 12 is provided on the front of the wire rope 21 between adjacent sheaves to scan the outer contour of each group of wire ropes 21. The groove scanning module 11, rope end scanning module 13, and strand breakage scanning module 12 can scan and monitor all grooves 22, wire ropes 21, and rope ends within the elevator wire rope assembly. Furthermore, the structured light scanning module emits a fan-shaped structured beam, greatly improving the monitoring coverage, avoiding tedious manual inspection, and increasing efficiency.

[0053] After receiving the data scanned by the structured light scanning module, the system host analyzes and judges the current state of the wire rope. When the wire rope is in an abnormal state, the safety protection mechanism is activated to stop the elevator. Alarm information is pushed to the PC client and mobile client through the cloud management system to notify professionals to reset the wire rope, thus playing the role of accident prevention and risk warning.

[0054] Furthermore, each of the wheel groove scanning modules 11 is respectively arranged above each of the wheel grooves 22, and the strand break scanning module 12 is arranged facing the wire rope 21.

[0055] Furthermore, the wire rope end assembly 23 includes a rope end pull rod 231, a compression spring 234, an upper pad 232, and a lower pad 233. The rope end pull rod 231 passes through the upper pad 232 and the lower pad 233. One end of the rope end pull rod 231 extending out of the lower pad 233 is connected to the end of the wire rope. Both ends of the compression spring 234 are fixedly connected to the upper pad 232 and the lower pad 233, respectively. The compression spring 234 is sleeved on the outside of the rope end pull rod 231. One end of the rope end pull rod 231 extending out of the upper pad 232 is locked by a fixing nut 235. A light target 236 is provided on the side of the upper pad 232 near the fixing nut 235. The rope end scanning module 13 is positioned above the light target 236.

[0056] A method for monitoring the condition of elevator wire ropes includes the following steps:

[0057] S1: The system host starts up, the elevator operation status monitoring module monitors the elevator operation in real time, the wheel groove scanning module obtains the initial data of the outline points of the wire rope in the wheel groove, the rope end scanning module scans and obtains the initial data of the optical target position, and the broken strand scanning module obtains the initial data of the outer outline points of the wire rope; the system host records the above initial data and sets it as the reference value.

[0058] S2: The wheel groove scanning module, rope end scanning module, and broken strand scanning module continuously scan and transmit real-time data to the system host respectively;

[0059] S3: The system host processes and analyzes the data returned in step S2 to determine the state changes of the wire rope;

[0060] S4: When the system host detects a change in the state of the wire rope and the elevator operation status monitoring module detects that the elevator is stopped, the safety protection module will activate the safety circuit to cut off the elevator, causing the elevator to stop. At the same time, the communication module will send an alarm message to the cloud management system, and the cloud management system will push the alarm message to the PC client and mobile client.

[0061] When the system host detects a change in the wire rope's condition, but the elevator operation status monitoring module detects that the elevator is running, the system host will remain in a waiting state until the elevator operation status monitoring module detects that the elevator is stopped. In this case, the safety protection module will activate and cut off the elevator's safety circuit, stopping the elevator from use. The system host will also send an alarm message to the cloud management system via the communication module, and the cloud management system will simultaneously distribute the alarm message to the PC client and mobile client.

[0062] S5: After receiving the alarm signal via PC and mobile clients, professionals reset the wire rope. The structured light scanning module continuously scans, and the system host determines whether the wire rope has been reset. If the wire rope is reset, the safety protection module is reset, and the elevator operates normally. If the wire rope is not reset, an alarm message is sent to the cloud management system via the communication module, and the cloud management system pushes the alarm message to the PC and mobile clients.

[0063] Through the above technical solution, in step S1, the initial state data of each wheel groove, wire rope and wire rope head are obtained by the structured light scanning module. This data is the data when the elevator is running normally. The system host records the initial data and uses it as a reference value to facilitate comparison and judgment of subsequent data.

[0064] Each scanning module in step S2 is continuously powered by the power module to ensure that each structured light scanning module scans without interruption and transmits real-time data back to the system host.

[0065] In step S3, the system host analyzes and compares the data transmitted back in step S2 with the baseline value obtained in step S1 to determine the state of the wire rope.

[0066] In step S4, the elevator operation monitoring module continuously monitors the elevator's operating status. When the system host detects an abnormality in the wire rope condition, and the elevator operation monitoring module detects that the elevator is still running, it stops the elevator using the elevator's built-in ground braking system. During this process, the system host will remain in a waiting state until the elevator operation monitoring module detects that the elevator has stopped. At this point, the safety protection module activates and cuts off the elevator's safety circuit, stopping the elevator from use. The system host sends alarm information to the cloud management system via the communication module, and the cloud management system simultaneously distributes the alarm information to PC and mobile clients.

[0067] In step S5, after receiving the alarm information, professionals can determine the location of the abnormal wire rope through the system host. Specifically, each transmitted data point can be traced back to the corresponding structured light scanning module, the location of which is predetermined. Therefore, professionals can quickly locate the abnormal wire rope position and reset it rapidly, improving elevator maintenance efficiency and reducing the difficulty of manual troubleshooting. Furthermore, the elevator cannot operate until the wire rope is reset, further enhancing safety.

[0068] like Figure 3As shown, further, the specific steps for the wheel groove scanning module to obtain the initial data of the contour points of the steel wire rope in the wheel groove in step S1 are as follows: A coordinate system is established for the wheel groove scanning module; the wheel groove scanning module scans the k steel wire ropes in the wheel groove; the coordinates of the peak value of the contour of the first steel wire rope in the wheel groove are... The coordinates of the peak value of the profile of the k-th wire rope within the groove are: Under normal circumstances, the ordinate of each peak Let 'a' be a fixed constant, and denote the ordinate of each peak. The allowable deviation is b, where b satisfies ,in Let be the ordinate of any wire rope within the groove.

[0069] Using the above technical solution, a scanning system for each wheel groove is established as follows: Figure 3 The coordinate system shown scans the peak coordinates of the profile of each steel wire in the corresponding wheel groove. Depending on the diameter of the steel wire rope arranged in each wheel groove, a constant a value of different values ​​can be preset in advance. At the same time, the value of allowable deviation b is set to conform to the deviation generated during the actual operation of the elevator. The minimum operating deviation b can be 0.

[0070] like Figure 5 As shown, further, the specific steps for the rope end scanning module to acquire the initial data of the upper surface points of the optical target at the wire rope end in step S1 are as follows: A coordinate system is established for each rope end scanning module. When the k-th rope end scanning module scans the k-th optical target and obtains the coordinates of each upper surface point of the optical target, the coordinates of the upper surface point of the 1st optical target are denoted as... The coordinates of the kth point on the upper surface of the target are Since the tension at each wire rope end is uniform in the initial state, the coordinate change of each optical target in the Y-axis direction is the same. The change in the coordinate value of a point on the upper surface of the optical target in the Y-axis direction is denoted as... .

[0071] With the above technical solution, under normal operating conditions, the tension of the elevator wire rope is uniform, that is, the tension at the end of each wire rope is the same. Therefore, under uniform load, the change of the compression spring of the elevator wire rope is consistent, and the coordinate values ​​of multiple optical targets on the surface of multiple wire rope ends in the same group change in the Y-axis direction.

[0072] like Figure 7 As shown, further, the specific steps of step S1, where the strand scanning module obtains the initial data of the wire rope's contour points, are as follows: A coordinate system is established for the strand scanning module. The strand scanning module scans K wire ropes. The K wire ropes do not change in the Y-axis direction. The range of motion of the K wire ropes in the X-axis direction is determined by two horizontal coordinates, where the range of motion of the first wire rope is within... Between, the range of motion of the Kth wire rope is Between the two adjacent steel wire ropes, there is a blank area between their range of motion.

[0073] With the above technical solution, the change of the wire rope in the Y-axis direction under normal operation is not obvious and can be ignored. The range of motion of each wire rope in the X-axis direction is determined by the coordinates of the two X-axis directions, and the interval between the ranges of motion of two adjacent wire ropes is a blank area.

[0074] like Figure 3 and Figure 4 As shown, further, the specific steps for the system host to determine the state of the wire rope in the wheel groove in step S3 are as follows: when the wire rope in the wheel groove jumps out of the groove, .

[0075] Through the above technical solution, when the wire rope jumps out of its groove, the corresponding peak coordinates of the profile will change, satisfying the requirements. At that time, the system host can determine that the wire rope has jumped out of the groove at that location.

[0076] like Figure 5 and Figure 6 As shown, further, the specific steps for the system host to determine the state of the wire rope end in step S3 are as follows: when the tension of the Nth wire rope end changes, or .

[0077] With the above technical solution, when the tension at the end of the Nth wire rope changes, the change in the coordinate value of the corresponding point on the upper surface of the optical target in the Y-axis direction is different from the change in the coordinate value of other optical targets. When it is much greater than the change in the coordinate value of other optical targets, it can be judged that the tension at that point is abnormal and needs to be manually checked. When the change in the coordinate value at that point is slightly greater than the change in the coordinate value of other optical targets and quickly returns to normal, it can be judged that the tension is suddenly changed and does not affect the normal operation of the elevator.

[0078] like Figure 7 and Figure 8 As shown, further, the specific steps for the system host to determine the broken strand state of the wire rope in step S3 are as follows: Record that the small strand formed by the broken strand appears between the Nth and N+1th wire ropes within their range of motion; when the broken strand scanning module scans... and The coordinates of point M on the small rope strand will be obtained at point M between them. When the elevator is running, the broken strand scanning module obtains the coordinates of a series of M points. ,and exist and It appears continuously within the interval.

[0079] Using the above technical solution, when a strand breaks, the resulting small strand will appear in the blank area of ​​the adjacent moving range. As the broken strand moves with the wire rope within the blank area, the broken strand scanning module obtains the coordinates of a series of M points. ,and exist and If the occurrence of a stock is continuous within a given interval, the system host can determine that the stock is broken at that point.

[0080] The above description is merely a preferred embodiment of the present invention. It should be understood that the present invention is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the concept described herein through the above teachings or related technologies or knowledge. Modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention should be within the protection scope of the appended claims.

Claims

1. A method for monitoring the condition of an elevator wire rope, comprising an elevator wire rope assembly and a monitoring assembly, wherein the elevator wire rope assembly includes a wire rope, a pulley groove (22), and a wire rope head assembly (23), characterized in that: The monitoring components include a structured light scanning module, a system host (3), an elevator operation status monitoring module, a safety protection module, a power supply module, a communication module, a cloud management system (4), a PC client (5), and a mobile client (6). The structured light scanning module is installed inside the elevator wire rope assembly. The structured light scanning module is connected to the system host (3). The structured light scanning module includes a wheel groove scanning module, a rope head scanning module (13) and a strand break scanning module (12). The wheel groove scanning module (11) is used to obtain the position data of the wire rope in the wheel groove (22). The rope head scanning module (13) is used to obtain the position data of the wire rope head assembly (23) when it is extended or retracted. The strand break scanning module (12) is used to obtain the position data of the outer contour of the wire rope (21). The system host (3) is used to process the data obtained by the structured light scanning module and determine the state changes of the wire rope. The system host (3) is connected to the elevator operation monitoring module, power supply module, safety protection module and communication module respectively. The elevator operation status monitoring module is used to monitor the current operation status of the elevator; The safety protection module is used to activate the safety circuit that cuts off the elevator, causing the elevator to stop running; The communication module is used to send alarm information to the cloud management system (4); The PC client (5) and mobile client (6) receive alarm information through the cloud management system (4); The monitoring method includes the following steps: S1: The system host starts up, the elevator operation status monitoring module monitors the elevator operation in real time, the wheel groove scanning module obtains the initial data of the outline points of the wire rope in the wheel groove, the rope end scanning module scans and obtains the initial data of the optical target position, and the broken strand scanning module obtains the initial data of the outer outline points of the wire rope; the system host records the above initial data and sets it as the reference value. S2: The wheel groove scanning module, rope end scanning module, and broken strand scanning module continuously scan and transmit real-time data to the system host respectively; S3: The system host processes and analyzes the data returned in step S2 to determine the state changes of the wire rope; S4: When the system host detects a change in the state of the wire rope and the elevator operation status monitoring module detects that the elevator is stopped, the safety protection module will activate the safety circuit to cut off the elevator, causing the elevator to stop. At the same time, the communication module will send an alarm message to the cloud management system, and the cloud management system will push the alarm message to the PC client and mobile client. When the system host detects a change in the wire rope's condition, but the elevator operation status monitoring module detects that the elevator is running, the system host remains in a waiting state until the elevator operation status monitoring module detects that the elevator has stopped. Then, the safety protection module activates and cuts off the elevator's safety circuit, stopping the elevator from use. Simultaneously, the system host sends an alarm message to the cloud management system via the communication module, and the cloud management system distributes the alarm message to the PC client and mobile client. S5: After receiving the alarm signal through the PC client and mobile client, the professional personnel will reset the wire rope. The structure light scanning module will continue to scan and the system host will determine whether the wire rope has been reset. If the wire rope is reset, the safety protection module will be reset and the elevator will operate normally. If the wire rope is not reset, an alarm message will be sent to the cloud management system through the communication module. At the same time, the cloud management system will distribute the alarm message to the PC client and mobile client. The specific steps of step S1, where the strand scanning module obtains the initial data of the wire rope contour points, are as follows: A coordinate system is established for the strand scanning module. The strand scanning module scans K wire ropes. The K wire ropes do not change in the Y-axis direction. The range of motion of the K wire ropes in the X-axis direction is determined by two horizontal coordinates, where the range of motion of the first wire rope is within... Between, the range of motion of the Kth wire rope is Between two adjacent steel wire ropes, there is a blank area between their range of motion; The specific steps for the system host to determine the broken strand state of the wire rope in step S3 are as follows: Record that the small strand formed by the broken strand appears between the Nth and N+1th wire ropes within their range of motion. The broken strand scanning module scans during this process... and The coordinates of point M on the small rope strand will be obtained at point M between them. When the elevator is running, the broken strand scanning module obtains the coordinates of a series of M points. ,and exist and It appears continuously within the interval.

2. The elevator wire rope condition monitoring method according to claim 1, characterized in that: Each of the wheel groove scanning modules (11) is arranged above each of the wheel grooves (22), and the strand break scanning module (12) is arranged facing the wire rope (21).

3. The elevator wire rope condition monitoring method according to claim 2, characterized in that: The wire rope end assembly (23) includes a rope end rod (231), a compression spring (234), an upper pad (232), and a lower pad (233). The rope end rod (231) passes through the upper pad (232) and the lower pad (233). One end of the rope end rod (231) extending out of the lower pad (233) is connected to the end of the wire rope. Both ends of the compression spring (234) are fixedly connected to the upper pad (232) and the lower pad (233), respectively. The compression spring (234) is sleeved outside the rope end rod (231). One end of the rope end rod (231) extending out of the upper pad (232) is locked by a fixing nut (235). A light target (236) is provided on the side of the upper pad (232) near the fixing nut (235). The rope end scanning module (13) is located above the light target (236).

4. The elevator wire rope condition monitoring method according to claim 1, characterized in that: The specific steps for the wheel groove scanning module to obtain the initial data of the contour points of the steel wire rope in the wheel groove in step S1 are as follows: A coordinate system is established for the wheel groove scanning module; the wheel groove scanning module scans the k steel wire ropes in the wheel groove; the coordinates of the peak value of the contour of the first steel wire rope in the wheel groove are... The coordinates of the peak value of the profile of the k-th wire rope within the groove are: Under normal circumstances, the ordinate of each peak Let 'a' be a fixed constant, and denote the ordinate of each peak. The allowable deviation is b, where b satisfies ,in Let be the ordinate of any wire rope within the groove.

5. The elevator wire rope condition monitoring method according to claim 1, characterized in that: The specific steps for the rope end scanning module to acquire the initial data of the upper surface points of the optical target at the wire rope end in step S1 are as follows: A coordinate system is established for each rope end scanning module. When the k-th rope end scanning module scans the k-th optical target and obtains the coordinates of each upper surface point of the optical target, the coordinates of the upper surface point of the 1st optical target are denoted as... The coordinates of the kth point on the upper surface of the target are Since the tension at each wire rope end is uniform in the initial state, the coordinate change of each optical target in the Y-axis direction is the same. The change in the coordinate value of a point on the upper surface of the optical target in the Y-axis direction is denoted as... .

6. The elevator wire rope condition monitoring method according to claim 4, characterized in that: The specific steps for the system host to determine the state of the wire rope in the wheel groove in step S3 are as follows: when the wire rope in the wheel groove jumps out of the groove, there is... .

7. The elevator wire rope condition monitoring method according to claim 5, characterized in that: The specific steps for the system host to determine the state of the wire rope head in step S3 are as follows: when the tension of the Nth wire rope head changes, or .

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