CN-121977047-A - Split type rope and self-adaptive alarm method

CN121977047ACN 121977047 ACN121977047 ACN 121977047ACN-121977047-A

Abstract

The invention relates to the technical field of rope safety and monitoring, in particular to a split type rope and a self-adaptive alarm method. The replaceable rope comprises a plurality of rope modules, wherein all the rope modules are connected in series in sequence, each rope module comprises a rope body, a first connecting piece is fixed at the first end of the rope body, a second connecting piece is fixed at the second end of the rope body, the first connecting piece of one rope module is connected with the second connecting piece of the other rope module in two adjacent rope modules, the rope modules further comprise an optical fiber sensor and a wireless communication chip which are electrically connected, the optical fiber sensor is embedded into the rope body, and the wireless communication chip is arranged in the first connecting piece or the second connecting piece. The whole rope system can be maintained in sections, and the cooperative sensing and summarizing of the whole state can be realized, so that the operation safety is ensured, and the use cost is reduced.

Inventors

QIU YANPING
SHEN MING
DU HONGFEI
LIU RUIQIANG
SONG BINGTAO

Assignees

山东鲁普科技有限公司

Dates

Publication Date: 20260505
Application Date: 20260119

Claims (10)

1. The split rope is characterized by comprising a plurality of rope modules, wherein all the rope modules are connected in series in sequence; The rope module comprises a rope body, a first connecting piece is fixed at the first end of the rope body, a second connecting piece is fixed at the second end of the rope body, and in two adjacent rope modules, the first connecting piece of one rope module is connected with the second connecting piece of the other rope module; The rope module further comprises an optical fiber sensor and a wireless communication chip which are electrically connected, wherein the optical fiber sensor is embedded into the rope body, and the wireless communication chip is arranged in the first connecting piece or the second connecting piece.
2. A split rope as claimed in claim 1, wherein cavities are provided in both the first and second connectors, and the ends of the rope body are embedded into the cavities of the first and second connectors, and the rope body and the connectors are fixed by filling resin glue into the cavities.
3. A split rope as claimed in claim 1, wherein the first and second connectors are threadably connected, one of the connectors being provided with external threads and the other connector being provided with mating internal threads.
4. A split rope as claimed in claim 1, characterized in that optical fiber sensors are embedded between the strands by a braiding process, distributed helically in the axial direction of the rope body, covering the entire length of each rope body.
5. A split rope as defined in claim 4, wherein said fiber optic sensor is encapsulated with polyimide film.
6. The split rope of claim 1, wherein the wireless communication chip is connected to the optical fiber sensor group via a flexible connection wire, and a lithium battery is disposed in the cavity of the connector.
7. A method of adaptive alerting of intelligent replaceable ropes of modular design according to any one of claims 1-6, comprising: establishing a working condition mode library, wherein the working condition mode library prestores a plurality of typical working condition modes and corresponding strain data feature vectors; Strain data of the fiber bragg grating sensor in the target rope portion are obtained in real time; Extracting real-time feature vectors according to the strain data obtained in real time, matching the real-time feature vectors with feature vectors in the working condition mode library, and identifying a current working condition mode; Dynamically calculating an alarm threshold value based on historical strain data statistics values under the working condition mode according to the identified current working condition mode; And comparing the real-time strain data with the dynamically calculated alarm threshold value, and generating alarm information when the threshold value is exceeded.
8. The adaptive warning method of claim 7, wherein the typical operating mode includes at least one of idle rest, light load lifting, heavy load lifting, oversteering, and dynamic sway.
9. The adaptive alarm method of claim 7 wherein the step of dynamically calculating an alarm threshold comprises: Acquiring an average value and a standard deviation of a maximum value of historical strain data under the current working condition mode; and adding the product of the standard deviation and the safety coefficient to the average value to obtain a dynamic alarm threshold value.
10. The adaptive warning method of claim 7 further comprising supplementing real-time strain data for which no warning is triggered and condition identification is successful to historical data for a corresponding condition pattern to update statistics for the condition pattern.

Description

Split type rope and self-adaptive alarm method Technical Field The invention relates to the technical field of rope safety and monitoring, in particular to a split type rope and a self-adaptive alarm method. Background The rope is used as a key component for bearing tension and realizing traction or bearing functions, is widely applied to a plurality of scenes such as building hoisting, mountain climbing rescue, logistics transportation and the like, and is used for bearing external force through a self structure and transmitting the acting force to a target object so as to finish operations such as heavy object hoisting, personnel transferring and the like, and the working reliability is directly related to the operation safety and efficiency. At present, the common ropes on the market mainly comprise steel wire ropes, synthetic fiber ropes and the like, the ropes are mostly of integral structural design and are formed by a single rope body, and the ropes bear load through the structural strength of the rope body in the use process. In the aspect of rope state detection, the prior art mainly relies on two modes, namely, an external tension meter is used for acquiring overall stress data through connection with a rope, and the other mode adopts periodic manual inspection and relies on experience of an operator to judge whether the rope has abrasion, fracture and other problems. In addition, tension monitoring devices appear in some technical schemes, and the device adopts external sensor design, and the sensor is installed through laminating or the mode of connecting at the rope surface for detect the tension variation of rope. However, the conventional rope has several problems in practical application, namely, firstly, from the aspects of structure and maintenance, the conventional rope is an integral body, once a local area is damaged due to abrasion, bending or impact, the whole rope must be scrapped and replaced even if the rest part is intact, which not only causes waste of materials and cost, but also increases the complexity and downtime of field maintenance. Secondly, on the state sensing capability, an external sensor can only acquire macroscopic tension data of the whole rope or a certain mounting point, and cannot sense and position local stress concentration and distribution conditions of different sections of the rope, so that the monitoring dimension is single and the information is not comprehensive. Moreover, the installation of the external sensor can damage the integrity of the rope structure, and the installation is interfered by collision, abrasion and the like in a complex operation environment, so that the monitoring reliability is affected. Disclosure of Invention Aiming at the defects existing in the prior art, the embodiment of the invention aims to provide a split type rope and a self-adaptive alarm method, the maintenance cost is reduced through modularized replaceable rope design, the accurate perception of local stress is realized through a built-in distributed sensor network, and finally, the accuracy and the reliability of alarm are effectively improved through the self-adaptive method capable of automatically identifying working conditions and dynamically adjusting alarm threshold values, and false alarm and missing alarm are reduced. In order to achieve the above object, the embodiment of the present invention provides the following technical solutions: A split rope comprises a plurality of rope modules, wherein all the rope modules are connected in series in sequence, each rope module comprises a rope body, a first connecting piece is fixed at the first end of the rope body, a second connecting piece is fixed at the second end of the rope body, the first connecting piece of one rope module is connected with the second connecting piece of the other rope module in two adjacent rope modules, the rope modules further comprise an optical fiber sensor and a wireless communication chip which are electrically connected, the optical fiber sensor is embedded into the rope body, and the wireless communication chip is arranged in the first connecting piece or the second connecting piece. Optionally, the first connecting piece and the second connecting piece are provided with cavities, the end parts of the rope body are embedded into the cavities of the first connecting piece and the second connecting piece, and the rope body and the connecting piece are fixed by filling resin glue in the cavities. Optionally, the first connecting piece and the second connecting piece are connected through threads, wherein one connecting piece is provided with external threads, and the other connecting piece is provided with matched internal threads. Optionally, the optical fiber sensors are embedded between the rope strands through a braiding process and are spirally distributed along the axial direction of the rope body to cover the whole length of each section of the rope body. Optionally, the optic