CN-117104806-B - Carrier roller motion state detection method, device, equipment and storage medium

Abstract

The invention provides a carrier roller motion state detection method, device, equipment and storage medium, which are characterized in that an initial optical signal and a vibration signal are acquired, a scattering signal is generated based on the initial optical signal and the vibration signal, the scattering signal is converted into a detection electric signal, the transmitting time of the initial optical signal and the receiving time of the scattering signal are determined, the transmission time of the signal is determined based on the receiving time and the transmitting time, the position of a carrier roller to be detected is determined based on the transmission time, the vibration state of the carrier roller to be detected is determined based on the detection electric signal, the motion state of the carrier roller is detected through the detection of the vibration signal when the carrier roller moves, the carrier roller is positioned through the position of the carrier roller determined through the receiving time of the optical signal, and the association relation among the vibration signal, the position information and the carrier roller to be detected is established, so that the motion states of a plurality of carrier rollers are detected.

Inventors

• CHEN SHANGLUN
• JIANG HONGYI

Assignees

• 中冶赛迪工程技术股份有限公司

Dates

Publication Date

20260512

Application Date

20230725

Claims (10)

1. 1. A method for detecting a carrier roller motion state, the method comprising: Acquiring an initial optical signal and a vibration signal, wherein the vibration signal is obtained based on converting the rotation motion of a carrier roller into the swing motion or displacement motion of a contact end in a vibration conduction module, or the vibration signal is obtained based on collision force or magnetic force generated between an eccentric block and the contact end in the vibration conduction module when the carrier roller rotates; Generating a scattered signal based on the initial light signal and the vibration signal, and converting the scattered signal into a detection electrical signal; determining the transmitting time of the initial optical signal and the receiving time of the scattered signal, and determining the transmission time length of the signal based on the receiving time and the transmitting time; And determining the position of the idler to be detected based on the transmission time length, and determining the vibration state of the idler to be detected based on the detection electric signal so as to detect the motion state of the idler to be detected.
2. 2. The carrier roller motion state detection method according to claim 1, characterized in that determining the vibration state of the carrier roller to be detected based on the detection electric 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 a difference value between the standard electrical signal and a preset floating threshold value as a standard electrical signal minimum value, determining a sum value of the standard electrical signal and the preset floating threshold value as a standard electrical signal maximum value, and determining an electrical signal interval which is larger than or equal to the standard electrical signal minimum value and smaller than the standard electrical signal maximum value as a standard electrical signal interval; and if the detection electric signal is in the standard electric signal interval, judging that the motion state of the carrier roller to be detected is abnormal, and if the detection electric signal is out of the standard electric signal interval, judging that the motion state of the carrier roller to be detected is normal.
3. 3. The method for detecting the motion state of the carrier roller according to claim 1, further comprising, after detecting the motion state of the carrier roller to be detected: acquiring basic information of a plurality of idler rollers to be detected and a plurality of scattering signals, wherein the basic information comprises positions and standard electric signals; converting the plurality of scattering signals into a plurality of detection electric signals, and constructing a signal mapping relation between each scattering signal and each idler to be detected based on the propagation time length of the plurality of scattering signals; Any detection electric signal is determined to be a target electric signal, a carrier roller to be detected, which has a mapping relation with the target electric signal, is determined to be a target carrier roller, a standard electric signal, which has a corresponding relation with the target electric signal, is obtained based on the signal mapping relation, and the target electric signal is compared with the standard electric signal, so that the motion state of the target carrier roller is obtained; Traversing all detection electric signals to detect the motion states of all idler rollers to be detected.
4. 4. A carrier roller motion state detection device, characterized in that the device comprises: The signal acquisition module is used for acquiring an initial optical signal and a vibration signal, wherein the rotation motion of the vibration signal is converted into swing motion or displacement motion of a contact end in the vibration conduction module, or the vibration signal is obtained based on collision force or magnetic force generated between the eccentric block and the contact end in the vibration conduction module when the carrier roller rotates; the signal conversion module is used for generating a scattering signal based on the initial optical signal and the vibration signal and converting the scattering signal into a detection electric signal; The timing module is used for determining the transmitting time of the initial optical signal and the receiving time of the scattered signal and determining the transmission time length of the signal based on the receiving time and the transmitting time; The state detection module is used for determining the position of the idler to be detected based on the transmission time length, and determining the vibration state of the idler to be detected based on the detection electric signal so as to detect the motion state of all the idlers to be detected.
5. 5. The idler motion state detection apparatus according to claim 4, wherein the signal acquisition module comprises: a signal transmitter for transmitting a probe beam and determining a signal of the probe beam as an initial optical signal; the eccentric block and the vibration transmission module are used for generating vibration signals based on the eccentric block and the vibration transmission module in the carrier roller movement process; and the signal receiving device is used for receiving the initial optical signal and the vibration signal.
6. 6. The idler motion state detection apparatus according to claim 5, wherein the signal conversion module comprises: The optical fiber is used for transmitting the initial optical signal and scattering the initial optical signal; A signal synthesizing unit for affecting the scattering of the initial optical signal based on the vibration signal to produce a scattered signal; and the conversion unit is used for converting the scattered signals into electric signals.
7. 7. An idler motion state detection apparatus according to any one of claims 5 to 6, wherein, The eccentric block is arranged on the end face of the carrier roller to be detected, and the vibration transmission module is arranged on a carrier roller frame of the carrier roller to be detected; and when the idler to be detected moves, the eccentric block is driven to rotate, so that the vibration conduction module and the eccentric block generate vibration signals based on the action of force.
8. 8. The idler motion state detection apparatus according to claim 7, wherein the vibration conduction module and the eccentric mass generate a vibration signal based on a force application, comprising at least one of: the vibration conduction module is contacted with the eccentric block, and drives the eccentric block to move when the carrier roller to be detected moves, so that the vibration conduction module collides with the eccentric block and generates a vibration signal based on the collision; magnetic force exists between the vibration conduction module and the eccentric block, and when the carrier roller to be detected moves, the eccentric block is driven to move, so that the vibration conduction module is displaced under the action of force, and vibration signals are generated based on the displacement.
9. 9. An electronic device, the electronic device comprising: one or more processors; storage means for storing one or more programs which, when executed by the one or more processors, cause the electronic device to implement the idler motion state detection method of any one of claims 1 to 3.
10. 10. A computer-readable storage medium, having stored thereon a computer program which, when executed by a processor of a computer, causes the computer to perform the idler motion state detection method of any one of claims 1 to 3.

Description

Carrier roller motion state detection method, device, equipment and storage medium Technical Field The application relates to the technical field of intelligent detection, in particular to a carrier roller motion state detection method, device and equipment and a storage medium. Background The carrier roller is the key part with the largest amount in the belt conveyor, and is the core part of the motion contact and friction of the belt conveyor, and is extremely easy to cause faults, including carrier roller blocking, abrasion, looseness, breakage, dropping and the like. Because the number of the carrier rollers is large, faults are difficult to observe, the carrier roller faults are difficult to find in time by manual inspection, dust and noise of the working environment of the belt conveyor are large, the reliability is difficult to guarantee and the fault carrier rollers are accurately positioned by common visual or sound detection, and the conventional sensor detection and the like are large in number of the carrier rollers, so that the number of the sensors is large, the maintenance is difficult, the cost is high, and the feasibility of practical use is not realized. The distributed optical fiber sensing technology can realize distributed real-time monitoring along the line through one optical cable, can be positioned in space, and is widely applied to the field of long-distance distributed information monitoring, such as pipeline, traffic, building and other industries. The distributed optical fiber vibration sensor has the advantages of electromagnetic interference resistance, flexibility, small volume and the like, can remotely monitor and position the carrier roller along the optical fiber line in real time, and is very suitable for carrier roller monitoring. At present, some technical researches try to monitor a carrier roller in real time through a distributed optical fiber vibration sensor, but the vibration of a carrier roller frame or a carrier roller shaft is monitored by directly utilizing the optical fiber vibration sensor, the vibration state is irregular and is easy to interfere with each other, the signal processing process is relatively complex, and the positioning accuracy is difficult to control. Disclosure of Invention In view of the above-mentioned drawbacks of the prior art, the present invention provides a method, apparatus, device and storage medium for detecting a motion state of a carrier roller, so as to solve the above-mentioned technical problem that the accuracy of positioning is difficult to control due to the fact that the vibration states are irregular and are easy to interfere with each other, and the signal processing process is relatively complex. The invention provides a carrier roller motion state detection method which comprises the steps of obtaining an initial optical signal and a vibration signal, generating a scattering signal based on the initial optical signal and the vibration signal and converting the scattering signal into a detection electric signal, determining the transmitting time of the initial optical signal and the receiving time of the scattering signal, determining the transmission time of the signal based on the receiving time and the transmitting time, determining the position of a carrier roller to be detected based on the transmission time, and determining the vibration state of the carrier roller to be detected based on the detection electric signal so as to detect the motion state of the carrier roller to be detected. In one embodiment of the application, the vibration state of the idler to be detected is determined based on the detection electric signal, and the method comprises the steps of obtaining a contrast scattering signal based on the initial optical signal, converting the contrast scattering signal into a standard electric signal, determining the difference value between the standard electric signal and a preset floating threshold value as a standard electric signal minimum value, determining the sum value of the standard electric signal and the preset floating threshold value as a standard electric signal maximum value, determining an electric signal interval which is larger than or equal to the standard electric signal minimum value and smaller than the standard electric signal maximum value as a standard electric signal interval, determining that the motion state of the idler to be detected is abnormal if the detection electric signal is in the standard electric signal interval, and determining that the motion state of the idler to be detected is normal if the detection electric signal is out of the standard electric signal interval. In one embodiment of the application, the detection of the motion state of all the idler rollers to be detected comprises the steps of obtaining basic information and a plurality of scattering signals of a plurality of idler rollers to be detected, wherein the basic information comprises positions a