A kind of carrier roller motion state detection method, device, equipment and storage medium

Abstract

The application provides a kind of roller movement state detection method, device, equipment and storage medium, the method, by obtaining initial light signal, vibration signal, scattering signal is generated based on initial light signal and vibration signal, and scattering signal is converted into detection electric signal, determine the emission time of initial light signal and the receiving time of scattering signal, and based on receiving time and emission time determine the transmission duration of signal, based on transmission duration determine the position of the to-be-detected roller, and based on detection electric signal determine the vibration state of the to-be-detected roller, to detect the movement state of the to-be-detected roller;The movement state of the roller is detected by detecting the vibration signal when the roller moves, and the position of the roller is determined by the receiving time of the light signal, the correlation between the vibration signal, the position information and the to-be-detected roller is established, so as to realize the detection of the movement state of multiple rollers.

Description

Technical Field

[0001] This application relates to the field of intelligent detection technology, specifically to a method, device, equipment, and storage medium for detecting the motion state of an idler roller. Background Technology

[0002] Idler rollers are the most numerous and critical components in belt conveyors, and are the core parts of the conveyor's motion contact and friction. They are highly prone to failure, including roller jamming, wear, loosening, breakage, and falling off. Due to the large number of idlers, faults are difficult to observe, and manual inspections are insufficient to detect them in a timely manner. Furthermore, the working environment of belt conveyors is dusty and noisy, making common visual or auditory detection methods unreliable and unable to accurately locate faulty idlers. Conventional sensor detection methods, due to the sheer number of idlers, require a large number of sensors, are difficult to maintain, and are costly, making them impractical for practical use.

[0003] Distributed fiber optic sensing technology, capable of real-time distributed monitoring along a single fiber optic cable and spatially locating components, is widely used in long-distance distributed information monitoring fields such as pipelines, transportation, and construction. Distributed fiber optic vibration sensors offer numerous advantages, including resistance to electromagnetic interference, flexibility, and small size. They can also remotely monitor and locate idler rollers along the fiber optic line in real time, making them highly suitable for idler roller monitoring. Current research attempts to monitor idler rollers in real time using distributed fiber optic vibration sensors, but these methods primarily rely on directly monitoring the vibration of the idler frame or shaft. This results in irregular vibration patterns, susceptibility to mutual interference, relatively complex signal processing, and difficulty in controlling positioning accuracy. Summary of the Invention

[0004] In view of the shortcomings of the prior art described above, the present invention provides a method, device, equipment and storage medium for detecting the motion state of idler rollers, so as to solve the technical problem that the positioning accuracy is difficult to control due to the irregular vibration state and easy mutual interference, and the relatively complex signal processing process.

[0005] This invention provides a method for detecting the motion state of an idler roller. The method includes: acquiring an initial optical signal and a vibration signal; generating a scattered signal based on the initial optical signal and the vibration signal, and converting the scattered signal into a detection electrical signal; determining the transmission time of the initial optical signal and the reception time of the scattered signal, and determining the transmission duration of the signal based on the reception time and the transmission time; determining the position of the idler roller to be detected based on the transmission duration, and determining the vibration state of the idler roller to be detected based on the detection electrical signal, so as to detect the motion state of the idler roller to be detected.

[0006] In one embodiment of this application, determining the vibration state of the idler roller to be tested based on the detected electrical signal includes: obtaining a contrast scattering signal based on the initial optical signal and converting the contrast scattering signal into a standard electrical signal; determining the difference between the standard electrical signal and a preset floating threshold as the minimum value of the standard electrical signal, and determining the sum of the standard electrical signal and the preset floating threshold as the maximum value of the standard electrical signal; determining the electrical signal interval that is greater than or equal to the minimum value of the standard electrical signal and less than the maximum value of the standard electrical signal as the standard electrical signal interval; if the detected electrical signal is within the standard electrical signal interval, then determining that the motion state of the idler roller to be tested is abnormal; if the detected electrical signal is outside the standard electrical signal interval, then determining that the motion state of the idler roller to be tested is normal.

[0007] In one embodiment of this application, detecting the motion state of all idlers to be tested includes: acquiring basic information and multiple scattered signals of multiple idlers to be tested, wherein the basic information includes position and standard electrical signal; converting the multiple scattered signals into multiple detection electrical signals, and constructing a signal mapping relationship between each scattered signal and each idler to be tested based on the propagation time of the multiple scattered signals; determining any detection electrical signal as a target electrical signal, and determining the idler to be tested that has a mapping relationship with the target electrical signal as a target idler; obtaining a standard electrical signal that has a corresponding relationship with the target electrical signal based on the signal mapping relationship, and comparing the target electrical signal and the obtained standard electrical signal to obtain the motion state of the target idler; and traversing all detection electrical signals to detect the motion state of all idlers to be tested.

[0008] This application provides a device for detecting the motion state of idler rollers. The device includes: a signal acquisition module for acquiring an initial optical signal and a vibration signal; a signal conversion module for generating a scattered signal based on the initial optical signal and the vibration signal, and converting the scattered signal into a detection electrical signal; a timing module for determining the transmission time of the initial optical signal and the reception time of the scattered signal, and determining the transmission duration of the signal based on the reception time and the transmission time; and a state detection module for determining the position of the idler roller to be detected based on the transmission duration, and determining the vibration state of the idler roller to be detected based on the detection electrical signal, so as to detect the motion state of all idler rollers to be detected.

[0009] In one embodiment of this application, the signal acquisition device includes: a signal transmitter for emitting a probe beam and determining the signal of the probe beam as an initial optical signal; an eccentric block and a vibration transmission module for generating a vibration signal based on the eccentric block and the vibration transmission module during the movement of the roller; and a signal receiving device for receiving the initial optical signal and the vibration signal.

[0010] In one embodiment of this application, the signal conversion module includes: an optical fiber for transmitting the initial optical signal and causing the initial optical signal to scatter; a signal synthesis unit for influencing the scattering of the initial optical signal based on a vibration signal to produce a scattered signal; and a conversion unit for converting the scattered signal into an electrical signal.

[0011] In one embodiment of this application, the eccentric block is disposed on the roller end face of the roller to be tested, and the vibration transmission module is disposed on the roller frame of the roller to be tested; when the roller to be tested moves, it drives the eccentric block to rotate, so that the vibration transmission module and the eccentric block generate vibration signals based on the action of force.

[0012] In one embodiment of this application, the vibration transmission module and the eccentric block generate a vibration signal based on the action of force, including at least one of the following: the vibration transmission module is in contact with the eccentric block, and when the roller to be detected moves, it drives the eccentric block to move, causing the vibration transmission module to collide with the eccentric block, and generating a vibration signal based on the collision; there is a magnetic force between the vibration transmission module and the eccentric block, and when the roller to be detected moves, it drives the eccentric block to move, causing the vibration transmission module to be displaced under the action of force, and generating a vibration signal based on the displacement.

[0013] This application provides an electronic device, which includes: one or more processors; and a storage device for storing one or more programs, which, when executed by the one or more processors, enable the electronic device to implement the roller motion state detection method as described above.

[0014] This application provides a computer-readable storage medium having a computer program stored thereon, which, when executed by a computer's processor, causes the computer to perform the roller motion state detection method as described above.

[0015] The beneficial effects of this invention are as follows: The idler motion state detection method proposed in this invention acquires initial optical signals and vibration signals, generates scattered signals based on the initial optical signals and vibration signals, converts the scattered signals into detection electrical signals, determines the transmission time of the initial optical signals and the reception time of the scattered signals, determines the signal transmission duration based on the reception time and transmission time, determines the position of the idler to be detected based on the transmission duration, and determines the vibration state of the idler to be detected based on the detection electrical signals, thereby detecting the motion state of the idler to be detected; by detecting the vibration signals when the idler moves, the motion state of the idler is detected, and the position of the idler is determined by the reception time of the optical signals to locate the idler, establishing the correlation between vibration signals, position information, and the idler to be detected, thereby realizing the detection of the motion state of multiple idlers.

[0016] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and do not limit this application. Attached Figure Description

[0017] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application. It is obvious that the drawings described below are merely some embodiments of this application, and those skilled in the art can obtain other drawings based on these drawings without any inventive effort. In the drawings:

[0018] Figure 1 This is a schematic diagram illustrating the implementation environment of the idler roller motion state detection method, as shown in an exemplary embodiment of this application.

[0019] Figure 2 This is a schematic diagram illustrating the roller motion state detection steps in an exemplary embodiment of this application;

[0020] Figure 3 This is a schematic diagram of the structure of a roller motion state detection device shown in an exemplary embodiment of this application;

[0021] Figure 4 This is a schematic diagram of the structure of the idler roller vibration transmission module, as shown in an exemplary embodiment of this application;

[0022] Figure 5 This is a flowchart illustrating the motion state detection of the idler roller as an exemplary embodiment of this application;

[0023] Figure 6 This is a block diagram illustrating a roller motion state detection device according to an exemplary embodiment of this application;

[0024] Figure 7 A schematic diagram of the structure of a computer system suitable for implementing the electronic device of the present application is shown.

[0025] Figure label:

[0026] 1-Idler frame, 2-Idler, 3-Distributed fiber optic sensor, 4-Vibration transmission module, 5-Fiber optic cable tray, 6-Eccentric block, 7-Contact end, 8-Transmission mechanism, 9-Output end. Detailed Implementation

[0027] The embodiments of the present invention will be described below with reference to the accompanying drawings and preferred embodiments. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be understood that the preferred embodiments are only for illustrating the present invention and not for limiting the scope of protection of the present invention.

[0028] It should be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of the present invention. Therefore, the drawings only show the components related to the present invention and are not drawn according to the actual number, shape and size of the components in the actual implementation. In the actual implementation, the shape, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0029] In the following description, numerous details are explored to provide a more thorough explanation of embodiments of the invention. However, it will be apparent to those skilled in the art that embodiments of the invention may be practiced without these specific details. In other embodiments, well-known structures and devices are shown in block diagram form rather than in detail to avoid obscuring embodiments of the invention.

[0030] First, it's important to clarify that idlers are crucial components of belt conveyors. They come in various types and are numerous, supporting the conveyor belt and the weight of the materials. Belt conveyors are the most widely used type of bulk material transport machinery, commonly used in industries such as metallurgy, coal, ports, mining, power, chemicals, and grain storage. Belt conveyors are characterized by long conveying distances and large coverage areas. Current maintenance and inspection methods primarily rely on manual inspections, which involve a large inspection area, high labor intensity, and low accuracy, depending heavily on operator experience. Furthermore, a malfunction in a large belt conveyor system can disrupt upstream and downstream operations, causing significant economic losses and even potential safety accidents.

[0031] Figure 1 This is a schematic diagram illustrating the implementation environment of the idler roller motion state detection method, as shown in an exemplary embodiment of this application. Figure 1As shown, the implementation environment of the idler motion state detection method includes an idler device 101, a signal detection device 102, and a computer device 103. The idler device 101 is the idler to be detected, which can be a single idler or a combination of multiple idlers acting on the same conveyor belt. The signal detection device 102 is used to emit an initial light signal and receive both light and vibration signals. The computer device 102 can be at least one of a desktop graphics processing unit (GPU) computer, a GPU computing cluster, a neural network computer, or an intelligent processor integrated into the vehicle. Technical personnel can use the signal detection device 102 to detect the vibration signal of the idler 101 to be detected, further generate a scattered signal, determine its signal transmission time, and send the obtained scattered signal, signal transmission time, and other relevant information to the computer device 103. This allows for calculation to establish a correlation between the idler to be detected and the scattered signal, thereby determining the motion state of the idler to be detected through the scattered signal.

[0032] Figure 2 This is a schematic diagram illustrating the roller motion state detection steps of an exemplary embodiment of this application. Figure 2 As shown, in an exemplary embodiment, the idler roller motion state detection method includes at least steps S210 to S240, which are described in detail below:

[0033] Step S210: Acquire the initial optical signal and vibration signal.

[0034] In one embodiment of this application, a signal receiver is provided at the roller to be tested for receiving optical signals and vibration signals.

[0035] Figure 3 This is a schematic diagram of the structure of a roller motion state detection device, as shown in an exemplary embodiment of this application. Figure 4 This is a schematic diagram illustrating the structure of a roller vibration transmission module, as shown in an exemplary embodiment of this application. Figure 3 As shown, the idler motion state detection device includes an idler frame 1, an idler 2, a distributed fiber optic sensor 3, a vibration transmission module 4, and a fiber optic tray 5. (As shown...) Figure 4 As shown, the idler roller vibration transmission module includes an eccentric block 6, a contact end oscillating needle 7, a transmission mechanism 8, and an output end 9. Distributed fiber optic vibration sensors 3 are arranged along the running direction of the belt conveyor. The eccentric block 6 is located on the end face of the idler roller. When the idler roller rotates, the eccentric block contacts the vibration transmission module, generating vibration that is transmitted to the fiber optic tray 5. The fiber optic tray is installed at the corresponding position of each group of idler rollers 2. The monitoring terminal is located in the control room and is used to receive signals, monitor the operating status of each idler roller in real time, and determine the location and type of faulty idler roller.

[0036] It should be noted that the eccentric block is installed on the end face of the idler roller, and its connection method includes, but is not limited to, welding, bonding, hinge or other connection methods.

[0037] In one embodiment of this application, an eccentric block is disposed on the end face of the idler roller to be tested, and a vibration transmission module is disposed on the idler roller frame of the idler roller to be tested. When the idler roller to be tested moves, it drives the eccentric block to rotate, causing the vibration transmission module and the eccentric block to generate a vibration signal based on the force. The vibration transmission module and the eccentric block generating a vibration signal based on the force includes: the vibration transmission module is in contact with the eccentric block, and when the idler roller to be tested moves, it drives the eccentric block to move, causing the vibration transmission module to collide with the eccentric block, and generating a vibration signal based on the collision; or, there is a magnetic force between the vibration transmission module and the eccentric block, and when the idler roller to be tested moves, it drives the eccentric block to move, causing the vibration transmission module to be displaced under the action of force, and generating a vibration signal based on the displacement.

[0038] In addition, it should be noted that the vibration transmission module includes a contact end and an output end. The contact end may or may not be in contact with the eccentric block. The output end is displaced by the force between the eccentric block and the contact end, thereby generating a vibration signal.

[0039] In one specific embodiment of this application, taking a long pendulum needle as the contact end as an example, when the belt conveyor is running, the conveyor belt drives the idler roller to rotate by friction. When the eccentric block rotates, it will collide with the vibration transmission device, including the long pendulum needle at the contact end, to generate relative motion. Under the action of the rotating shaft, it drives the output end to swing. During the swinging process, the pendulum needle at the output end strikes the optical fiber tray to generate a vibration signal.

[0040] In another specific embodiment of this application, taking the contact end as a pressure block as an example, the pressure block is fixed on the roller to be tested. When the roller to be tested moves, the eccentric block rotates and comes into contact with the pressure block, causing the pressure block to be displaced. Based on the displacement, the output end knocks on the optical fiber tray, generating a vibration signal.

[0041] In another specific embodiment of this application, taking both the eccentric block and the contact end as permanent magnets as an example, the permanent magnet at the contact end is fixed on the roller to be tested. When the roller to be tested moves, the permanent magnet of the eccentric block rotates and causes the permanent magnet at the contact end to be displaced. Based on the displacement, the output end strikes the optical fiber tray, generating a vibration signal.

[0042] It should be noted that, based on the above embodiments proposed in this application, by converting the idler roller motion into rhythmic vibration with a relatively fixed frequency and amplitude, other irrelevant vibrations can be filtered out through simple signal processing methods. This avoids the problem of excessive noise and chaotic vibration signals in the existing idler roller vibration measurement process, which directly measures the vibration of the idler roller frame. As a result, the range of frequency and amplitude of the detection signal is reduced, and noise can be filtered out more accurately through signal processing, effectively improving the accuracy of the detection conclusion of the idler roller motion state.

[0043] Step S220: Generate a scattering signal based on the initial optical signal and vibration signal, and convert the scattering signal into a detection electrical signal.

[0044] In one embodiment of this application, after the conveyor belt is started, the belt drives the idlers to rotate due to friction during operation. When the eccentric block rotates, it collides with the long pendulum needle at the contact end of the vibration transmission module, generating relative motion. Under the action of the rotating shaft, the output end swings. During the swing, the pendulum needle at the output end strikes the optical fiber tray, generating a vibration signal. At the same time, the detection beam emitted by the signal transmitting device is transmitted along the conveyor belt via optical fiber. During the transmission, the detection beam is scattered in the optical fiber, and the optical properties of the scattering change due to vibration. Therefore, based on the interference of the vibration signal, the optical signal of the detection beam will become a new scattered signal. The signal receiving device set at each idler can receive the scattered signal with vibration information and convert the received scattered signal into a detection electrical signal.

[0045] It should be noted that the scattering mode can vary depending on the type of optical fiber, including but not limited to Rayleigh scattering, Raman scattering, or Brillouin scattering.

[0046] Step S230: Determine the transmission time of the initial optical signal and the reception time of the scattered signal, and determine the transmission duration of the signal based on the reception time and the transmission time.

[0047] In one embodiment of this application, three idlers A, B, and C are arranged on a conveyor belt to be tested, and the distances between the three idlers and the detection beam emitting device are S, respectively. A S B S C The emission time of the probe beam is t0, and the reception times of the scattered signals from the three rollers are t0 and t1 respectively. A t B t C Therefore, it can be based on t0 and t A The transmission time T from the probe beam to roller A was calculated. A And based on t0 and t B The transmission time T from the probe beam to roller B was calculated. B And based on t0 and tC The transmission time T from the probe beam to the idler roller C was calculated. C .

[0048] Step S240: Determine the position of the idler to be tested based on the transmission time, and determine the vibration state of the idler to be tested based on the detection electrical signal, so as to detect the motion state of the idler to be tested.

[0049] In one embodiment of this application, determining the position of the idler to be tested based on the transmission duration includes: acquiring the signal emission position of the initial optical signal; calculating the propagation distance of the optical signal based on the transmission duration and the speed of light, and determining the propagation distance as the detection distance between the idler to be tested and the signal emission position; and obtaining the position of the idler to be tested based on the signal emission position and the detection distance.

[0050] In one specific embodiment of this application, the signal transmission duration T calculated above is... A T B and T C The distance between the signal receiving point and the detector beam emitter can be calculated based on the speed of light propagation, and the calculated distance is S. A '、S B '、S C ', calculate the S A '、S B '、S C 'Respectively compared with the actual distance S A S B S C By comparing them one by one, we can obtain S. A 'with S A Equal, similarly we can obtain S B 'with S B If they are equal, we get S. C 'with S C They are equal, therefore t can be determined. A The scattered signal received at time t is the scattered signal of roller A. B The scattered signal received at time t is the scattered signal of roller B. C The scattered signal received at each time point is the scattered signal of roller C, and the frequency of the signal received at each time point is different. The scattered signal is converted into electrical signals to obtain signal A, signal B, and signal C respectively. Therefore, it can be determined that signal A is the detection electrical signal corresponding to roller A, signal B is the detection electrical signal corresponding to roller B, and signal C is the detection electrical signal corresponding to roller C.

[0051] In one embodiment of this application, determining the vibration state of the idler roller to be tested based on the detected electrical signal includes: obtaining a contrast scattering signal based on an initial optical signal and converting the contrast scattering signal into a standard electrical signal; obtaining a standard range based on the standard electrical signal; if the detected electrical signal is within the standard range, determining that the motion state of the idler roller to be tested is abnormal; if the detected electrical signal is outside the standard range, determining that the motion state of the idler roller to be tested is normal.

[0052] In one embodiment of this application, obtaining a standard interval based on a standard electrical signal includes: determining the difference between the standard electrical signal and a preset floating threshold as the minimum value of the standard electrical signal, and determining the sum of the standard electrical signal and the preset floating threshold as the maximum value of the standard electrical signal; and determining the electrical signal interval that is greater than or equal to the minimum value of the standard electrical signal and less than the maximum value of the standard electrical signal as the standard electrical signal interval.

[0053] In one specific embodiment of this application, taking a preset floating threshold of Δf as an example, the idler A to be tested is first obtained when the conveyor belt is not started, i.e., the idler is not moving. Its signal frequency is f0. Therefore, its standard frequency range can be calculated as (f0-Δf, f0+Δf). Based on the signal detection device set at the idler A to be tested, the scattered signal obtained is converted into a detection electrical signal with a signal frequency of f. A Further calculate f A The relationship with the standard frequency yields f. A >f0+Δf, therefore, f A If the frequency is outside the standard frequency range, the motion state of the idler roller A to be tested can be determined to be normal.

[0054] In another embodiment of this application, taking a preset floating threshold of Δf as an example, the signal frequency of the idler roller B to be tested is first obtained when the conveyor belt is not started and the idler roller is not moving. Therefore, its standard frequency range can be calculated as (f0-Δf, f0+Δf). Based on the signal detection device set at the idler roller B to be tested, the scattered signal obtained is converted into a detection electrical signal with a signal frequency of f. B Further calculate f B The relationship with the standard frequency yields f. B >f0-Δf, and f B <f0+Δf. Therefore, f B If the frequency is within the standard frequency range, the motion state of the idler roller B to be tested can be determined to be abnormal, that is, the working state of the idler roller B is abnormal.

[0055] In one embodiment of this application, after detecting the motion state of the idler roller to be tested, the method further includes: acquiring basic information of multiple idler rollers to be tested and multiple scattered signals, the basic information including position and standard electrical signal; converting the multiple scattered signals into multiple detection electrical signals, and constructing a signal mapping relationship between each scattered signal and each idler roller to be tested based on the propagation time of the multiple scattered signals; determining any detection electrical signal as a target electrical signal, and determining the idler roller to be tested that has a mapping relationship with the target electrical signal as the target idler roller, obtaining a standard electrical signal that has a corresponding relationship with the target electrical signal based on the signal mapping relationship, and comparing the target electrical signal with the obtained standard electrical signal to obtain the motion state of the target idler roller; and traversing all detection electrical signals to detect the motion state of all idler rollers to be tested.

[0056] In one embodiment of this application, idler rollers A, B, and C to be tested are arranged on a specific conveyor belt, and their respective detection electrical signal frequencies are f. A f B and f C The standard electrical signals for each point to be tested are f0, f1, and f2, respectively. Based on each standard electrical signal, the corresponding standard signal frequency is calculated, and the frequency of the detected electrical signal is f. A f B and f C The motion state of each idler roller to be tested is determined by comparing it with its corresponding standard signal frequency.

[0057] Figure 5 This is an exemplary embodiment of the present application illustrating a flowchart of the idler roller motion state detection process.

[0058] In one embodiment of this application, such as Figure 5 As shown, the power is first turned on to start the belt conveyor, which causes the idlers mounted on the belt conveyor to rotate, and the eccentric block to rotate as well. The vibration signal is detected by the vibration transmission module and output to the optical cable tray. In addition, a detection beam is emitted by the light source emitting device and transmitted to the optical cable tray through distributed optical fiber. The detection beam will be scattered by the optical fiber, and the vibration signal will affect the scattering, thereby generating a new scattered signal. The photodetector of the receiving device receives the scattered signal and converts the received scattered signal into an electrical signal and sends it to the terminal detection system. The terminal detection system can then determine the motion state of each idler to be detected based on the vibration position, amplitude, and frequency information.

[0059] In one specific embodiment of this application, the idler roller to be tested includes idler roller A, idler roller B, and idler roller C. An eccentric block, a vibration transmission module, and an optical fiber tray are provided at each idler roller. After the belt conveyor is started, the eccentric block rotates and collides with the long pendulum needle of the vibration transmission module (including the contact end), generating relative motion. Under the action of the rotating shaft, the output end swings. During the swing, the pendulum needle strikes the optical fiber tray, generating a vibration signal. This vibration signal affects the scattering of the detection beam, thereby generating a scattered signal. The scattered signal is converted into a detection electrical signal by a signal receiving device, and the frequency f of the obtained detection electrical signal is... A f B and f C The motion states of idler A, idler B, and idler C under test are determined by comparing them with the frequencies f0, f1, and f2 of the standard electrical signals.

[0060] Figure 6 This is a block diagram illustrating a roller motion state detection device according to an exemplary embodiment of this application. The device can be applied to... Figure 1 The implementation environment shown is not limited to this embodiment. This device can also be applied to other exemplary implementation environments and specifically configured in other devices. This embodiment does not limit the implementation environment to which the device is applicable.

[0061] like Figure 6 As shown, the exemplary idler roller motion state detection device includes: a signal acquisition module 610, a signal conversion module 620, a timing module 630, and a state detection module 640.

[0062] The signal acquisition module 610 is used to acquire initial optical signals and vibration signals; the signal conversion module 620 is used to generate a scattered signal based on the initial optical signal and vibration signal, and convert the scattered signal into a detection electrical signal; the timing module 630 is used to determine the transmission time of the initial optical signal and the reception time of the scattered signal, and determine the transmission duration of the signal based on the reception time and the transmission time; the state detection module 640 is used to determine the position of the idler roller to be detected based on the transmission duration, and determine the vibration state of the idler roller to be detected based on the detection electrical signal, so as to detect the motion state of all idler rollers to be detected.

[0063] In addition, the signal acquisition device includes: a signal transmitter for emitting a probe beam and determining the signal of the probe beam as an initial optical signal; an eccentric block and vibration transmission module for generating a vibration signal based on the eccentric block and vibration transmission module during the movement of the roller; and a signal receiving device for receiving the initial optical signal and the vibration signal. The signal conversion module includes: an optical fiber for transmitting the initial optical signal and causing it to scatter; a signal synthesis unit for influencing the scattering of the initial optical signal based on the vibration signal to produce a scattered signal; and a conversion unit for converting the scattered signal into an electrical signal.

[0064] It should be noted that the idler motion state detection device and the idler motion state detection method provided in the above embodiments belong to the same concept. The specific operation methods of each module and unit have been described in detail in the method embodiments and will not be repeated here. In practical applications, the idler motion state detection device provided in the above embodiments can be assigned to different functional modules as needed, that is, the internal structure of the device can be divided into different functional modules to complete all or part of the functions described above. This is not a limitation here.

[0065] Embodiments of this application also provide an electronic device, including: one or more processors; and a storage device for storing one or more programs, which, when executed by one or more processors, cause the electronic device to implement the roller motion state detection method provided in the above embodiments.

[0066] Figure 7 A schematic diagram of a computer system suitable for implementing the embodiments of this application is shown. It should be noted that... Figure 7 The computer system 700 of the electronic device shown is merely an example and should not impose any limitation on the functionality and scope of use of the embodiments of this application.

[0067] like Figure 7 As shown, the computer system 700 includes a Central Processing Unit (CPU) 701, which can perform various appropriate actions and processes, such as executing the methods described in the above embodiments, based on programs stored in Read-Only Memory (ROM) 702 or programs loaded from storage portion 708 into Random Access Memory (RAM) 703. The RAM 703 also stores various programs and data required for system operation. The CPU 701, ROM 702, and RAM 703 are interconnected via a bus 704. An Input / Output (I / O) interface 705 is also connected to the bus 704.

[0068] The following components are connected to the I / O interface 705: an input section 706 including a keyboard, mouse, etc.; an output section 707 including a cathode ray tube (CRT), liquid crystal display (LCD), etc., and speakers, etc.; a storage section 708 including a hard disk, etc.; and a communication section 709 including a network interface card such as a LAN (Local Area Network) card, modem, etc. The communication section 709 performs communication processing via a network such as the Internet. A drive 710 is also connected to the I / O interface 705 as needed. A removable medium 711, such as a disk, optical disk, magneto-optical disk, semiconductor memory, etc., is installed on the drive 710 as needed so that computer programs read from it can be installed into the storage section 708 as needed.

[0069] Specifically, according to embodiments of this application, the processes described above with reference to the flowcharts can be implemented as computer software programs. For example, embodiments of this application include a computer program product comprising a computer program carried on a computer-readable medium, the computer program including a computer program for performing the methods shown in the flowcharts. In such embodiments, the computer program can be downloaded and installed from a network via communication section 709, and / or installed from removable medium 711. When the computer program is executed by central processing unit (CPU) 701, it performs various functions defined in the system of this application.

[0070] It should be noted that the computer-readable medium shown in the embodiments of this application can be a computer-readable signal medium or a computer-readable storage medium, or any combination of the two. A computer-readable storage medium can be, for example, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination thereof. More specific examples of a computer-readable storage medium may include, but are not limited to: an electrical connection having one or more wires, a portable computer disk, a hard disk, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM), flash memory, optical fiber, portable compact disc read-only memory (CD-ROM), optical storage device, magnetic storage device, or any suitable combination thereof. In this application, a computer-readable signal medium may include a data signal propagated in baseband or as part of a carrier wave, carrying a computer-readable computer program. Such propagated data signals can take various forms, including but not limited to electromagnetic signals, optical signals, or any suitable combination thereof. Computer-readable signal media can also be any computer-readable medium other than computer-readable storage media, which can send, propagate, or transmit a program for use by or in connection with an instruction execution system, apparatus, or device. The computer program contained on the computer-readable medium can be transmitted using any suitable medium, including but not limited to wireless, wired, etc., or any suitable combination thereof.

[0071] The flowcharts and block diagrams in the accompanying drawings illustrate the architecture, functionality, and operation of possible implementations of systems, methods, and computer program products according to various embodiments of this application. Each block in a flowchart or block diagram may represent a module, segment, or portion of code, which contains one or more executable instructions for implementing a specified logical function. It should also be noted that in some alternative implementations, the functions indicated in the blocks may occur in a different order than those indicated in the drawings. For example, two consecutively indicated blocks may actually be executed substantially in parallel, and they may sometimes be executed in reverse order, depending on the functions involved. It should also be noted that each block in a block diagram or flowchart, and combinations of blocks in a block diagram or flowchart, may be implemented using a dedicated hardware-based system that performs the specified function or operation, or using a combination of dedicated hardware and computer instructions.

[0072] The units described in the embodiments of this application can be implemented in software or hardware, and the described units can also be located in a processor. The names of these units do not necessarily limit the specific unit itself.

[0073] Another aspect of this application provides a computer-readable storage medium storing a computer program that, when executed by a computer's processor, causes the computer to perform the aforementioned roller motion state detection method. This computer-readable storage medium may be included in the electronic device described in the above embodiments, or it may exist independently and not incorporated into that electronic device.

[0074] Another aspect of this application provides a computer program product or computer program including computer instructions stored in a computer-readable storage medium. A processor of a computer device reads the computer instructions from the computer-readable storage medium and executes the computer instructions, causing the computer device to perform the roller motion state detection method provided in the various embodiments described above.

[0075] The above embodiments are merely illustrative of the principles and effects of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in the present invention should still be covered by the claims of the present invention.

Claims

1. A method for detecting the motion state of an idler roller, characterized in that, The method includes: Acquire initial optical signals and vibration signals. The vibration signals are obtained by converting the rotational motion of the idler roller into the oscillating motion or displacement motion of the contact end in the vibration transmission module, or the vibration signals are obtained by the collision force or magnetic force generated between the eccentric block and the contact end in the vibration transmission module when the idler roller rotates. A scattering signal is generated based on the initial optical signal and the vibration signal, and the scattering signal is converted into a detection electrical signal; The transmission time of the initial optical signal and the reception time of the scattered signal are determined, and the transmission duration of the signal is determined based on the reception time and the transmission time; The position of the idler roller to be tested is determined based on the transmission duration, and the vibration state of the idler roller to be tested is determined based on the detection electrical signal, so as to detect the motion state of the idler roller to be tested.

2. The method for detecting the motion state of an idler roller according to claim 1, characterized in that, Determining the vibration state of the idler roller under test based on the detected electrical signal includes: A contrast scattering signal is obtained based on the initial optical signal, and the contrast scattering signal is converted into a standard electrical signal; The difference between the standard electrical signal and the preset floating threshold is determined as the minimum value of the standard electrical signal, and the sum of the standard electrical signal and the preset floating threshold is determined as the maximum value of the standard electrical signal. The electrical signal interval that is greater than or equal to the minimum value of the standard electrical signal and less than the maximum value of the standard electrical signal is determined as the standard electrical signal interval. If the detected electrical signal is within the standard electrical signal range, the motion state of the idler roller to be tested is determined to be abnormal; if the detected electrical signal is outside the standard electrical signal range, the motion state of the idler roller to be tested is determined to be normal.

3. The method for detecting the motion state of an idler roller according to claim 1, characterized in that, After detecting the motion state of the idler roller to be tested, the method further includes: Acquire basic information and multiple scattered signals from multiple idlers to be tested, wherein the basic information includes position and standard electrical signals; The multiple scattered signals are converted into multiple detection electrical signals, and a signal mapping relationship between each scattered signal and each idler roller to be detected is constructed based on the propagation time of the multiple scattered signals. Any detected electrical signal is determined as the target electrical signal, and the idler roller to be detected that has a mapping relationship with the target electrical signal is determined as the target idler roller. Based on the signal mapping relationship, a standard electrical signal that corresponds to the target electrical signal is obtained, and the target electrical signal and the standard electrical signal are compared to obtain the motion state of the target idler roller. The entire detection electrical signal is traversed to detect the motion state of all the idler rollers to be tested.

4. A device for detecting the motion state of an idler roller, characterized in that, The device includes: The signal acquisition module is used to acquire initial optical signals and vibration signals. The rotational motion of the vibration signal is converted into the oscillating motion or displacement motion of the contact end in the vibration transmission module, or the vibration signal is obtained based on the collision force or magnetic force generated between the eccentric block and the contact end in the vibration transmission module when the roller rotates. The signal conversion module is used to generate a scattered signal based on the initial optical signal and the vibration signal, and to convert the scattered signal into a detection electrical signal; A timing module is used to determine the transmission time of the initial optical signal and the reception time of the scattered signal, and to determine the transmission duration of the signal based on the reception time and the transmission time; The status detection module is used to determine the position of the idler roller to be detected based on the transmission duration, and to determine the vibration state of the idler roller to be detected based on the detection electrical signal, so as to detect the motion state of all idler rollers to be detected.

5. The idler roller motion state detection device according to claim 4, characterized in that, The signal acquisition module includes: A signal transmitter is used to emit a probe beam and determine the signal of the probe beam as an initial optical signal; An eccentric block and a vibration transmission module are used to generate vibration signals based on the eccentric block and the vibration transmission module during the movement of the idler roller; A signal receiving device is used to receive the initial optical signal and the vibration signal.

6. The idler roller motion state detection device according to claim 5, characterized in that, The signal conversion module includes: An optical fiber is used to transmit the initial optical signal and to cause the initial optical signal to be scattered. A signal synthesis unit is used to influence the scattering of the initial optical signal based on the vibration signal to produce a scattered signal; A conversion unit is used to convert the scattered signal into an electrical signal.

7. The idler roller motion state detection device according to any one of claims 5-6, characterized in that, The eccentric block is disposed on the end face of the idler roller to be tested, and the vibration transmission module is disposed on the idler roller frame of the idler roller to be tested; When the roller to be detected moves, it drives the eccentric block to rotate, causing the vibration transmission module and the eccentric block to generate a vibration signal based on the force.

8. The idler roller motion state detection device according to claim 7, characterized in that, The vibration transmission module and the eccentric block generate vibration signals based on the action of force, including at least one of the following: The vibration transmission module contacts the eccentric block. When the roller to be detected moves, it drives the eccentric block to move, causing the vibration transmission module to collide with the eccentric block and generating a vibration signal based on the collision. There is a magnetic force between the vibration transmission module and the eccentric block. When the roller to be detected moves, it drives the eccentric block to move, causing the vibration transmission module to be displaced under the action of force, and generating a vibration signal based on the displacement.

9. An electronic device, characterized in that, The electronic device includes: One or more processors; A storage device for storing one or more programs, which, when executed by one or more processors, cause the electronic device to implement the roller motion state detection method as described in any one of claims 1 to 3.

10. A computer-readable storage medium, characterized in that, It stores a computer program, which, when executed by the computer's processor, causes the computer to perform the roller motion state detection method according to any one of claims 1 to 3.

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