CN113562002B - Ropeway operation fault diagnosis system and method - Google Patents

Ropeway operation fault diagnosis system and method Download PDF

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Publication number
CN113562002B
CN113562002B CN202110858796.4A CN202110858796A CN113562002B CN 113562002 B CN113562002 B CN 113562002B CN 202110858796 A CN202110858796 A CN 202110858796A CN 113562002 B CN113562002 B CN 113562002B
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signal
module
cable car
offset distance
acquisition module
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CN113562002A (en
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王钧
陈向阳
袁愈献
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Loudi Tongfeng Technology Co ltd
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Loudi Tongfeng Technology Co ltd
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B61RAILWAYS
    • B61BRAILWAY SYSTEMS; EQUIPMENT THEREFOR NOT OTHERWISE PROVIDED FOR
    • B61B12/00Component parts, details or accessories not provided for in groups B61B7/00 - B61B11/00
    • B61B12/06Safety devices or measures against cable fracture
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B61RAILWAYS
    • B61LGUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L15/00Indicators provided on the vehicle or train for signalling purposes
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B61RAILWAYS
    • B61LGUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L15/00Indicators provided on the vehicle or train for signalling purposes
    • B61L15/0081On-board diagnosis or maintenance

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • General Health & Medical Sciences (AREA)
  • Transportation (AREA)
  • Vehicle Cleaning, Maintenance, Repair, Refitting, And Outriggers (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)

Abstract

The invention discloses a fault diagnosis system and a fault diagnosis method for cableway operation, relates to the technical field of cableway operation, and solves the technical problem that the safety operation of the cableway is affected due to the fact that faults caused by swinging of a lift car of a cableway cannot be found in time; the device comprises a signal acquisition module, a signal transmission module, a storage module, a signal processing module and an instruction execution module: the signal acquisition module is used for acquiring running signals of the cable car; the signal transmission module is used for transmitting the running signal of the cable car; the storage module is used for storing the running signals and basic data of the cable car; the signal processing module is used for processing and analyzing the operation signal and the basic data generation instruction; the instruction execution module is used for executing the instruction. The invention processes and analyzes the operation information and technical data of the cable car, and timely discovers faults caused by car swing. The invention has reasonable design and is convenient for fault diagnosis in cableway operation.

Description

Ropeway operation fault diagnosis system and method
Technical Field
The invention belongs to the technical field of cableway operation, and particularly relates to a system and a method for diagnosing faults of cableway operation.
Background
The cableway is also called a cable car, the purpose of conveying personnel or goods is achieved by means of traction of a steel wire rope, the running speed of a cable car is generally not more than 13 km, when the cable car runs in the air, the cable car is often influenced by wind in the nature and personnel activities in the car to cause the car to swing, and when the swing is large, the safety running of the cableway can be influenced. Meanwhile, the car can wear the joint of the top in the swinging process, and when parts at the joint reach fatigue points due to wear, the car can be possibly dropped off.
Disclosure of Invention
The invention provides a fault diagnosis system and a fault diagnosis method for cableway operation, which are used for solving the technical problem that faults caused by swinging of a cable car can not be found in time to influence safe operation of the cableway.
The aim of the invention can be achieved by the following technical scheme:
in a first aspect, the invention provides a fault diagnosis system for cableway operation, which comprises a signal acquisition module, a signal transmission module, a storage module, a signal processing module and an instruction execution module:
the signal acquisition module is used for acquiring running signals of the cable car;
the signal transmission module is used for transmitting the running signal of the cable car;
the storage module is used for storing the running signals and basic data of the cable car;
the signal processing module is used for processing and analyzing the operation signal and the basic data and generating an instruction;
the instruction execution module is used for executing the instruction.
Further, the signal acquisition module comprises a wind signal acquisition module, a weight acquisition module, a swing acquisition module and a travel acquisition module.
Further, the wind signal acquisition module is used for acquiring wind signals of the environment where the cable car is located, and the wind signals comprise wind speed signals and wind direction signals; the weight acquisition module is used for acquiring weight signals of the cable car; the swing acquisition module is used for acquiring swing signals of the cable car; the travel collection module is used for collecting travel signals of the cable car.
Further, the specific process of collecting the swing signal of the cable car comprises the following steps:
firstly, taking the connection position of the top of a cable car as an origin, and establishing a space rectangular coordinate system; taking the center of the cable car as a signal point, acquiring coordinate information of the signal point and taking the coordinate information as a swinging signal, wherein the swinging signal comprises a time stamp.
Further, the specific process of acquiring the coordinate information of the signal point is as follows:
firstly, a signal receiver is arranged at the joint of the top of a cable car, then a plurality of signal transmitters are arranged around the cable car, and the signal point position of the cable car is determined through signal transmission between the signal transmitters and the signal receiver, the installation position of the signal transmitters and the length, width and height of the cable car and is converted into coordinate information.
Further, the basic data comprise the length, width, height, weight, manufacturing age, maintenance record and experiment record of the cable car; the base data also includes a theoretical wobble model generated from the experimental record.
Further, the processing analyzes the operation signal and the basic data and generates instructions, and the specific process comprises the following steps:
calculating the offset distance of the signal point, and comparing the offset distance with an upper limit threshold value and a safety threshold value; when the offset distance is greater than or equal to the upper threshold value, generating a braking signal;
when the offset distance is smaller than the upper limit threshold value and the offset distance is larger than the safety threshold value, continuing to judge;
when the offset distance is consistent with the theoretical offset distance, continuing to record the offset time, and generating a braking signal when the offset time is greater than or equal to the safety time;
generating an alarm signal when the offset distance is inconsistent with the theoretical offset distance; marking a track curve of a signal point in a coordinate system, taking the initial position of the signal point as a circle center, taking the radius as a ball with a set length, respectively calculating the lengths of an outer curve and an inner curve of the ball, and converting the lengths into wear factors;
and generating an overhaul signal after the abrasion factors are accumulated to a set threshold value.
Further, the instruction execution module comprises a voice broadcasting module, a braking module and a maintenance module:
the voice broadcasting module is used for executing an alarm signal;
the braking module is used for executing a braking signal;
the overhaul module is used for executing overhaul signals.
In a second aspect, the present invention also provides a fault diagnosis method for cableway operation, including:
step one: the signal acquisition module acquires a running signal of a cable car;
step two: the signal transmission module transmits the operation signal to the storage module and the signal processing module;
step three: the signal processing module processes and analyzes the operation signal and basic data to generate an instruction, and sends the instruction to the instruction execution module;
step four: the instruction execution module executes instructions.
Compared with the prior art, the invention has the beneficial effects that:
according to the invention, through analyzing the offset distance of the cable car, the possible faults of the cable car can be diagnosed according to the magnitude of the offset distance, and the instruction is generated, so that the occurrence of safety accidents caused by untimely fault discovery is avoided. The invention can also find out the fatigue of parts at the joint of the top of the cable car in time, thereby being convenient for overhauling and replacing the parts.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a functional block diagram of the present invention.
Detailed Description
The technical solutions of the present invention will be clearly and completely described in connection with the embodiments, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The terminology used herein is for the purpose of describing embodiments and is not intended to limit and/or restrict the disclosure; it should be noted that the singular forms "a", "an" and "the" include plural forms as well, unless the context clearly indicates otherwise; moreover, although the terms "first," "second," etc. may be used herein to describe various elements, the elements are not limited by these terms, and these terms are merely used to distinguish one element from another element.
As shown in fig. 1, a fault diagnosis system for cableway operation comprises a signal acquisition module, a signal transmission module, a storage module, a signal processing module and an instruction execution module.
The signal acquisition module further comprises a wind signal acquisition module, a weight acquisition module, a swing acquisition module and a travel acquisition module:
the wind signal acquisition module is used for acquiring wind speed signals and wind direction signals of the environment where the cable car is in when running, and can acquire wind speed and risk through an anemometer and convert the wind speed and risk into electric signals;
the weight acquisition module is used for acquiring weight signals of the cable car;
the weight of the cable car comprises the weight of the cable car body and the weight of passengers or cargoes in the cable car.
The swing acquisition module is used for acquiring swing signals of the cable car, and the cable car can be influenced by side wind in the actual running process, so that the car is inclined or swings. The process for collecting the swing signal of the cable car specifically comprises the following steps:
a plurality of signal transmitters are arranged in the front-back direction and the two side directions of the cable car body, and signal receivers are arranged at the joints of the tops of the cable car bodies. In this embodiment, the signal transmitter is an infrared signal transmitter, and the signal receiver is an infrared signal receiver. The cable car is stationary relative to the wire rope during normal operation, which is of course only ideal. The car can oscillate during actual operation due to various factors. When the cable car swings, the infrared signal emitter mounted on the top of the cable car also moves. In the swinging process, the distance between the infrared signal emitter and the infrared signal receiver also changes. The change in distance can be represented by a change curve of the infrared signal. The amplitude and time of the swing of the cable car can be obtained from the change curve of the infrared signal and a swing signal can be generated. In the embodiment, the central position of the top of the cable car is taken as an origin, the front-back horizontal direction of the junction of the top of the cable car is taken as an X axis, the horizontal directions of the left side and the right side of the junction of the top of the cable car are taken as Y axes, the vertical direction is taken as a Z axis, and a space rectangular coordinate system is established, and four signal transmitters are distributed around the box body of the cable car and on the same horizontal plane. Four signal transmitters may determine the center point of the cable car and act as signal points. When the cable car swings, the four signal transmitters are displaced relative to the space coordinate system, the signal points are displaced relative to the space coordinate system, and the space coordinate is changed. Coordinate information of the signal points is collected as a wobble signal, which includes a time stamp.
Further, the signal transmitters are at least three.
The travel collection module is used for collecting travel signals of the car signals; in practical situations, the cable car is driven by the steel cable to travel, so that the travel route is always fixed and moves in a straight line, the position of the cable car relative to the ground can be determined by arranging the positioning device at the bottom of the cable car, and the speed of the cable car can be further calculated by establishing a position-time curve.
The storage module is used for storing basic data of the cable car.
Further, the base data includes length, width, height, weight, manufacturing age, maintenance records, and experimental records of the cable car.
Further, the experimental records comprise experimental data of inclination of the cable car when the same wind speed and different downward bearing speeds are adopted, experimental data of the cable car when the same bearing speed and different wind speeds are adopted, and experimental data of the cable car when the same bearing speed and different downward wind speeds are adopted.
Further, the experimental data are consolidated into a theoretical wobble model.
The signal transmission module is used for transmitting the wind signal, the swing signal and the travel signal to the signal processing module.
The signal processing module is used for analyzing and processing wind signals, swing signals and travel signals, and the signal processing module is used for analyzing and processing the wind signals, the swing signals and the travel signals and specifically comprises the following steps:
and extracting information of signal points in the swinging signals, calculating coordinate points after the signal points are offset, and indicating that the larger the offset distance between the offset signal point coordinates and the cable car stationary signal point coordinates is, the larger the amplitude of the swing of the cable car is. The geographical position of the signal point can be obtained from the travel signal, so that the geographical stamp can be obtained.
The cases of the cable car swinging in a deviating way include:
the cable car is influenced by the crosswind at a uniform speed, deviates from the vertical direction and keeps a deviating state, and the deviating state is relatively stable, but excessive abrasion is caused to a mechanical mechanism at the joint of the top of the cable car when the cable car is inclined for a long time, so that the safe operation is influenced.
The cable car is influenced by lateral unstable wind, and because the installation position of the cable car is usually located at a higher position and is easily influenced by the wind unstable in the air, the cable car swings in all directions, when the swing amplitude is overlarge and the swing time is overlong, safety accidents are easy to occur, and when people exist in the cable car, the cable car is easy to panic.
The influence of persons or goods in the cable car can cause a certain degree of sway when someone moves in the cable car. The more intense the activity, the greater the oscillation caused. The cargoes in the cable car are not fixed and can slide obliquely along with the cargoes when the cable car swings under the influence of wind speed, so that the swing of the cable car is further increased.
Calculating the offset distance of the signal points and judging, and generating a braking signal when the offset distance is larger than or equal to an upper limit threshold, wherein the upper limit threshold is larger to the extent that the safe operation of the cableway is affected, and the upper limit threshold is set according to practice, so that the invention is not particularly limited.
The runway should be operated for a long period of time within the upper threshold and the offset distance is small for most of the time. Setting a safety threshold, and inputting a wind signal and the weight of a cable car into a theoretical swing model to obtain a theoretical offset distance when the offset distance is larger than the safety threshold and smaller than an upper limit threshold; when the offset distance is inconsistent with the theoretical offset distance, generating an alarm signal; when the offset distance is consistent with the theoretical offset distance, continuing to record the offset time; and when the offset time is greater than or equal to the safety time, generating a braking signal.
The offset distance is consistent with the theoretical offset distance, and the absolute value of the difference between the offset distance and the theoretical offset distance is smaller than a reasonable difference value; the corresponding offset distance is inconsistent with the theoretical offset distance, including an absolute value of a difference between the offset distance and the theoretical offset distance being greater than or equal to a reasonable difference.
Further, the alarm signal is executed by a voice broadcasting module provided inside the cable car.
In the cableway running process, when passengers exist in the cable car, some activities of the passengers can influence the movement state of the cable car, and when the activities of the passengers are large, the influence on the cable car is larger. Through gathering wind signal and the weight of car, can calculate the theoretical offset distance under the theoretical condition through theoretical swing model, when theoretical offset distance is unanimous with the offset distance of actually measuring, can judge that the passenger is inside not moving at the cable car, perhaps the activity is less, when theoretical offset distance is inconsistent with the offset distance of actually measuring, can judge that the passenger is inside moving at the cable car is great, at this moment generates alarm signal to inform the passenger through the voice broadcast module that sets up in the cable car is inside, remind the passenger to reduce the activity, keep the car stable.
The offset distance in most of the time of cableway operation is within a safety threshold, after the end of a section of travel of the cable car, all signal points in the section of travel are marked in a space coordinate system, a series of disordered track curves are generated, the initial positions of the signal points are taken as the center, a ball is made by taking the set length as the radius, the curve track curves are divided into an inner ball curve and an outer ball curve, the lengths of the outer ball curve and the inner ball curve are calculated respectively, and the wear factors are obtained through a wear conversion model. When the wear factor accumulates to the set threshold, the cable car roof connection may cause part damage due to wear caused by the larger and more frequent swings, at which time the signal processing module generates an inspection signal.
The wear conversion model may be obtained from a large amount of experimental data, which is a common technique known to those skilled in the art, and will not be described in detail herein.
The wear conversion model may be generated by a large amount of experimental data, which belongs to a common technique known to those skilled in the art, and will not be described herein.
Further, the instruction execution module comprises a voice broadcasting module, a braking module and a maintenance module:
the voice broadcasting module is used for executing an alarm signal;
the braking module is used for executing a braking signal;
and the overhaul module is used for executing overhaul signals and sending cable car information needing overhaul to maintenance personnel.
Further, the brake signal includes an address stamp. The position of the cable car can be conveniently and quickly determined after braking.
On the other hand, the invention also provides a fault diagnosis method for cableway operation, which comprises the following steps:
step one: the signal acquisition module acquires a running signal of a cable car;
step two: the running signals among the signal transmission modules are transmitted to the storage module and the signal processing module;
step three: the signal processing module processes and analyzes the operation signal and basic data to generate an instruction, and sends the instruction to the instruction execution module;
step four: the instruction execution module executes instructions.
The above formulas are all formulas with dimensions removed and numerical values calculated, the formulas are formulas which are obtained by acquiring a large amount of data and performing software simulation to obtain the closest actual situation, and preset parameters and preset thresholds in the formulas are set by a person skilled in the art according to the actual situation or are obtained by simulating a large amount of data.
The working principle of the invention is as follows: in the application process, the signal receiver is arranged at the joint of the lift car and the steel cable, the plurality of signal transmitters are arranged around the lift car of the cable car, the central point of the lift car of the cable car, namely the position of the signal point, can be obtained by combining the length, the width and the height of the lift car of the cable car, and a space rectangular coordinate system is established at the joint of the upper end of the cable car. When the cable car swings and deviates, the position of the signal point changes relative to the original position and generates a new coordinate, and the distance between the signal point and the initial point position can be calculated according to the new coordinate of the signal point and is used as a basis for judging the deviation degree of the cable car. Setting a safety threshold and an upper limit threshold for the offset distance, wherein when the offset distance is smaller than the safety threshold, the swing belongs to the swing with normal amplitude, when the offset distance is larger than the safety threshold, the safety operation of the cable car is not influenced in a short time, but when the cable car is in the state for a long time, potential safety hazards exist, so that when the duration time is longer than the safety time, a braking signal is generated so as to avoid danger; and when the offset distance is larger than the upper limit threshold value, directly generating a braking signal.
The cable car swings for a long time, so that the connecting part of the cable car can be worn to a certain extent, the normal operation of a cableway can be influenced when the cable car is worn to a certain extent, and the cable car can be seriously fallen off. Therefore, according to the track formed by the central movement of the cable car in one stroke, the track is displayed as an unordered curve in a space coordinate system, the curve is processed, a model converted from abrasion is input, the abrasion factor generated in the process of the stroke at the joint of the top of the cable car can be obtained, and whether maintenance is necessary or not can be obtained according to the operation age and maintenance record of the cable car.
In the description of the present specification, the descriptions of the terms "one embodiment," "example," "specific example," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The foregoing is merely illustrative of the structures of this invention and various modifications, additions and substitutions for those skilled in the art can be made to the described embodiments without departing from the scope of the invention or from the scope of the invention as defined in the accompanying claims.

Claims (8)

1. The system for diagnosing the fault of the cableway operation is characterized by comprising a signal acquisition module, a signal transmission module, a storage module, a signal processing module and an instruction execution module:
the signal acquisition module is used for acquiring running signals of the cable car;
the signal transmission module is used for transmitting the running signal of the cable car;
the storage module is used for storing the running signals and basic data of the cable car;
the signal processing module is used for processing and analyzing the operation signal and the basic data and generating an instruction;
the instruction execution module is used for executing instructions;
the processing analyzes the operation signals and the basic data and generates instructions, and the specific process comprises the following steps:
calculating the offset distance of the signal point, and comparing the offset distance with an upper limit threshold value and a safety threshold value; when the offset distance is greater than or equal to the upper threshold value, generating a braking signal;
when the offset distance is smaller than the upper limit threshold value and the offset distance is larger than the safety threshold value, continuing to judge;
when the offset distance is consistent with the theoretical offset distance, continuing to record the offset time, and generating a braking signal when the offset time is greater than or equal to the safety time;
generating an alarm signal when the offset distance is inconsistent with the theoretical offset distance; marking a track curve of a signal point in a coordinate system, taking the initial position of the signal point as a circle center, taking the radius as a ball with a set length, respectively calculating the lengths of an outer curve and an inner curve of the ball, and converting the lengths into wear factors;
and generating an overhaul signal after the abrasion factors are accumulated to a set threshold value.
2. The system of claim 1, wherein the signal acquisition module comprises a wind signal acquisition module, a weight acquisition module, a swing acquisition module, and a travel acquisition module.
3. The system according to claim 2, wherein the wind signal acquisition module is configured to acquire a wind signal of an environment in which the cable car is located, the wind signal including a wind speed signal and a wind direction signal; the weight acquisition module is used for acquiring weight signals of the cable car; the swing acquisition module is used for acquiring swing signals of the cable car; the travel collection module is used for collecting travel signals of the cable car.
4. A system for diagnosing a failure in a cableway according to claim 3, wherein the step of acquiring the swing signal of the car comprises the steps of:
firstly, taking the connection position of the top of a cable car as an origin, and establishing a space rectangular coordinate system; taking the center of the cable car as a signal point, acquiring coordinate information of the signal point and taking the coordinate information as a swinging signal, wherein the swinging signal comprises a time stamp.
5. The system for diagnosing a fault in a cableway according to claim 4, wherein the step of obtaining the coordinate information of the signal points comprises the following steps:
firstly, a signal receiver is arranged at the joint of the top of a cable car, then a plurality of signal transmitters are arranged around the cable car, and the signal point position of the cable car is determined through signal transmission between the signal transmitters and the signal receiver, the installation position of the signal transmitters and the length, width and height of the cable car and is converted into coordinate information.
6. A system for diagnosing a failure in a cableway according to claim 1, characterized in that said basic data include the length, width, height, weight, manufacturing year, maintenance record and experimental record of the cable car; the base data also includes a theoretical wobble model generated from the experimental record.
7. The system of claim 1, wherein the command execution module comprises a voice broadcast module, a brake module, and a service module:
the voice broadcasting module is used for executing an alarm signal;
the braking module is used for executing a braking signal;
the overhaul module is used for executing overhaul signals.
8. The diagnostic method of a fault diagnosis system according to claim 1, comprising:
step one: the signal acquisition module acquires a running signal of a cable car;
step two: the signal transmission module transmits the operation signal to the storage module and the signal processing module;
step three: the signal processing module processes and analyzes the operation signal and basic data to generate an instruction, and sends the instruction to the instruction execution module;
step four: the instruction execution module executes instructions.
CN202110858796.4A 2021-07-28 2021-07-28 Ropeway operation fault diagnosis system and method Active CN113562002B (en)

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Publication number Priority date Publication date Assignee Title
US5528219A (en) * 1994-04-28 1996-06-18 Konrad Doppelmayr & Sohn Ropeway safety monitoring system
CN104159080B (en) * 2014-08-13 2017-04-26 冯显宗 Aerial cableway falling-off detection system based on Hough transformation, and aerial cableway falling-off detection method based on Hough transformation
CN105242551A (en) * 2015-09-14 2016-01-13 蒙元煜 Passenger ropeway equipment condition monitoring and early warning system
CN108715167A (en) * 2018-05-25 2018-10-30 北京起重运输机械设计研究院有限公司 A kind of cableway guard method, apparatus and system
CN109249943A (en) * 2018-10-07 2019-01-22 山东科技大学 Passenger aerial ropeway comprehensively monitoring cloud platform and mobile phone APP terminal
CN112948457A (en) * 2021-01-29 2021-06-11 中国特种设备检测研究院 Passenger transport cableway detection monitoring and health diagnosis system, method, medium and equipment

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