CN113358151A - Roller coaster track structure health monitoring system based on optical fiber sensing - Google Patents
Roller coaster track structure health monitoring system based on optical fiber sensing Download PDFInfo
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 63
- 230000036541 health Effects 0.000 title claims abstract description 26
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/16—Measuring arrangements characterised by the use of optical techniques for measuring the deformation in a solid, e.g. optical strain gauge
- G01B11/165—Measuring arrangements characterised by the use of optical techniques for measuring the deformation in a solid, e.g. optical strain gauge by means of a grating deformed by the object
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P15/00—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration
- G01P15/02—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces using solid seismic masses
- G01P15/03—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces using solid seismic masses by using non-electrical means
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Abstract
本发明公开了一种光纤传感的过山车轨道结构健康监测系统，包括光纤光栅传感器模块，包括若干光纤光栅应变传感器和若干三维光纤光栅加速度传感器，用于关键结构参数的实时监控；光纤光栅解调仪，通过光纤光缆连接光纤光栅传感器模块，用于解调光纤光栅传感器产生的波长信号；监控主机用于通过通信网络完成对光纤光栅传感器模块的驱动、控制光纤光栅解调仪的解调以及过山车轨道监控参数的获取。本发明实现了对过山车轨道的无损、抗干扰的实时监测，具有易于安装、维护的优点。
The invention discloses an optical fiber sensing roller coaster track structure health monitoring system, comprising a fiber grating sensor module, including several fiber grating strain sensors and several three-dimensional fiber grating acceleration sensors, which are used for real-time monitoring of key structural parameters; fiber grating demodulation It is connected to the fiber grating sensor module through the fiber optic cable to demodulate the wavelength signal generated by the fiber grating sensor; the monitoring host is used to drive the fiber grating sensor module through the communication network, control the demodulation of the fiber grating demodulator and the roller coaster Access to track monitoring parameters. The invention realizes the non-destructive and anti-interference real-time monitoring of the roller coaster track, and has the advantages of easy installation and maintenance.
Description
Technical Field
The invention relates to the field of roller coaster track structure detection, in particular to a roller coaster track structure health monitoring system based on optical fiber sensing.
Background
The roller coaster is typical equipment in a large-scale amusement facility, and no early warning system capable of monitoring the running state of the roller coaster is installed on the roller coaster in China at present, so that great hidden danger is brought to safe running of the roller coaster. A roller coaster belongs to a large amusement facility of a sliding vehicle, and mainly comprises a train, a track, a stand column, a traction system, a braking system, a control system and the like. The working principle is as follows: after the train is lifted to the highest point of the track by the chain, the train automatically disengages from the chain, slides freely along the track under the action of gravity, and finally returns to the platform after braking.
With the rapid development of economy, the large-scale amusement facility industry in China is in the peak period of development. While the large amusement ride industry is rapidly developing, it is accompanied by non-negligible safety issues. Due to the influence of various factors in the running process of the roller coaster track, damage and deterioration of each part of the structure can occur to different degrees, and if the damage cannot be monitored and maintained in time, serious safety incidents can be caused. However, the existing test systems at home and abroad mainly perform static index tests, such as whether a safety device is sound, whether a structural member has cracks, whether an electromechanical product is qualified, and the like; and the method focuses on the detection and nondestructive inspection of the specific indexes of the subsystems or parts of the equipment, such as whether the roller coaster lifting mechanism operates normally, whether a lifting chain has no damage and the like. There is no effective means for real-time monitoring of the overall operational status of the amusement ride.
However, to prevent these accidents, it is far from being solved only by the attention of the relevant departments and managers. It is known through research that damage and deterioration on a roller coaster track are the main causes of safety accidents, but due to production continuity and economic considerations, long-term real-time monitoring of the overall running state of the roller coaster track cannot be realized. Moreover, too frequent and blind maintenance of the roller coaster track is uneconomical and impractical, and if the treatment is not reasonable, the track damage is even more severe, even causing some new defects. Therefore, long-term real-time monitoring of roller coaster tracks requires scientific and professional methods. In summary, it would be extremely useful to be able to develop a roller coaster track monitoring method. The roller coaster track is monitored in real time and is subjected to safety assessment according to monitoring data, so that long-period safety work of the roller coaster can be guaranteed, and the operation and maintenance cost of the system can be reduced.
Compared with the existing method for detecting the structural damage of the system, the sensing system and the instrument of the optical fiber sensing technology have the outstanding characteristics of electromagnetic interference resistance, convenience for carrying out nondestructive detection in the structure, long transmission distance of sensing information, simple and flexible packaging process, realization of large-scale networking through a multiplexing technology and the like, and the characteristics that the sensing system and the instrument are not influenced by light source power in use and can realize quasi-distributed measurement by connecting a plurality of sensors in series on a single optical fiber are more incomparable with other types of sensors due to the wavelength coding characteristic, so that the defect of periodic detection of the conventional detection method at present can be overcome.
Disclosure of Invention
The invention aims to provide a health monitoring system of a roller coaster track structure based on optical fiber sensing, so as to realize real-time and nondestructive monitoring of the roller coaster track structure.
In order to solve the technical problem, the invention provides a technical scheme that: a roller coaster track structure health monitoring system based on optical fiber sensing comprises an inner track and an outer track, wherein stiffening ribs are connected between the inner track and the outer track, the inner track and the outer track are fixedly connected with a V-shaped supporting inclined rod, a connecting support is fixed below the V-shaped supporting inclined rod and fixed to an upright post, and the upright post is fixed to the ground through the upright post support;
the system comprises:
the fiber bragg grating sensor module comprises a plurality of fiber bragg grating strain sensors and a plurality of three-dimensional fiber bragg grating acceleration sensors and is arranged on the roller coaster track; wherein, part of the fiber bragg grating strain sensors are arranged at the inner sides of the inner rail and the outer rail in opposite and alternate arrangement and are used for realizing the strain state detection of the rail structure; the other part of the fiber bragg grating strain sensors are arranged on two sides of the inner side of the V-shaped supporting diagonal rod and are arranged in opposite directions at an oblique angle to realize strain state detection of the V-shaped supporting diagonal rod; the three-dimensional fiber bragg grating acceleration sensor is arranged on a connecting support and an upright post support at a corner of a roller coaster track and in a region with large impact, and is particularly arranged at the top of the connecting support, between two connecting points connected with a V-shaped supporting inclined rod and at the center of the bottom of the upright post support;
the fiber grating demodulator is connected with the fiber grating sensor module through a fiber optic cable and is used for sending detection light to enter the fiber grating sensor and demodulating a wavelength signal generated by the fiber grating sensor;
and the monitoring host is provided with upper computer software matched with the fiber grating demodulator and is used for driving the fiber grating sensor module, controlling the demodulation of the fiber grating demodulator and acquiring the monitoring parameters of the roller coaster track through a communication network.
According to the scheme, the fiber bragg grating strain sensor and the three-dimensional fiber acceleration sensor are connected in series on one transmission fiber through fusion or a quick connector; or the fiber bragg grating strain sensor and the three-dimensional fiber acceleration sensor are connected with the plurality of transmission fibers in parallel through fusion or a quick connector, so that a distributed fiber bragg grating sensor network is formed, and the multipoint monitoring of the roller coaster track is completed.
According to the scheme, the fiber bragg grating strain sensor adopts bare fiber bragg grating; the three-dimensional fiber grating acceleration sensor adopts a vertical fiber grating acceleration sensor, and the vertical fiber grating acceleration sensor comprises a packaged fiber grating, a mass block and an elastomer structure.
According to the scheme, the installation process of the fiber grating strain sensor comprises the following steps: polishing the mounting point of the fiber grating strain sensor on the roller coaster track, performing surface treatment and cleaning by using an organic solvent, and fixing the fiber grating strain sensor on the mounting point by using glue.
According to the scheme, the bottom of the three-dimensional fiber grating acceleration sensor is provided with the threaded hole, and the installation process of the three-dimensional fiber grating acceleration sensor is as follows: the three-dimensional fiber grating acceleration sensor is fixed on a connecting block by using a bolt through a threaded hole at the bottom of the three-dimensional fiber grating acceleration sensor, the connecting block is symmetrically provided with a plurality of threaded holes along the circumferential direction of the center, the connecting block is fixed on a welding block by using the bolt through the threaded hole of the connecting block, and then the welding block is welded and fixed with a support of a roller coaster track.
According to the scheme, the fiber grating demodulator is a multi-channel high-speed fiber grating modulation and demodulation device based on a tunable laser, a narrow-band tunable light source is adopted to emit detection light to enter a fiber grating sensor in a monitoring area, the reflection spectrum or the transmission spectrum of the fiber grating is periodically scanned, and wavelength signals generated by the fiber grating sensor are demodulated.
According to the scheme, the monitoring host is an industrial computer and communicates with the fiber grating demodulator through the network port by adopting a UDP protocol.
According to the scheme, the system further comprises a remote monitoring center and an extended monitor, wherein:
the remote monitoring center comprises a server, a storage and a firewall, is provided with a roller coaster track structure health detection system software, and is used for performing information interaction with the monitoring host through the router and the switch, and performing remote cloud service of real-time monitoring, statistical analysis and event alarming;
and the expansion monitoring is used for monitoring the server, the memory, the switch and the firewall and maintaining the network information security in the remote cloud service process.
According to the scheme, the software of the health detection system for the track structure of the roller coaster is internally provided with a characteristic database, and the establishment process of the characteristic database is as follows:
important positions and corresponding power parameters in the roller coaster track structure are found through modeling and power simulation analysis of the roller coaster track structure, and parameters of the roller coaster track in a normal running state and under different faults are obtained through arranging corresponding sensors at the important positions, so that a characteristic database of the roller coaster track running parameters is established.
According to the scheme, the roller coaster track structure health detection system software comprises a visualization module, a statistical analysis module and an event alarm module; the visualization module is used for converting the received sensor wavelength data into physical quantity for visualization display; the statistical analysis module is used for managing the historical data acquired by the sensor, performing statistical analysis and realizing the query of the sensor data in any time period; the event alarm module is used for judging whether the sensor data deviate from a preset threshold interval or not, and if the sensor data deviate from the threshold interval, the alarm information is sent to an administrator.
The invention has the beneficial effects that: the fiber grating sensor is adopted to collect parameters of the roller coaster track, and the fiber grating demodulator is matched to convert optical signals generated by the fiber grating sensor into physical parameters, so that the collected parameters have high reliability, are convenient to install and have low cost; the real-time monitoring of the rail running condition of the roller coaster and the automatic early warning under the fault condition are realized by arranging the monitoring host and the remote monitoring center; the information safety of the system in the communication process is ensured through the set extended monitoring;
furthermore, the established characteristic database provides data basis for the system to diagnose the rail running condition of the roller coaster, and the extra cost caused by manual auxiliary monitoring is reduced.
Drawings
FIG. 1 is a schematic view of a monitoring system according to an embodiment of the present invention;
FIG. 2 is a layout diagram of strain measurement points of a roller coaster track according to an embodiment of the invention;
FIG. 3 is a diagram of the arrangement of the measuring points of the V-shaped supporting diagonal rods according to one embodiment of the present invention;
FIG. 4 is a diagram of the vibration measuring point arrangement of the connecting support according to one embodiment of the present invention;
FIG. 5 is a diagram of a vibration measurement point arrangement of a column support according to an embodiment of the present invention.
In the figure: 1-fiber grating sensor module, 2-fiber grating demodulator, 3-monitoring host, 4-extended monitoring, 5-remote monitoring center, 6-outer rail, 7-inner rail, 8-first fiber grating strain sensor, 9-second fiber grating strain sensor, 10-third fiber grating strain sensor, 11-fourth fiber grating strain sensor, 12-stiffening rib, 13-V type supporting diagonal rod, 14-fifth fiber grating strain sensor, 15-sixth fiber grating strain sensor, 16-connecting support, 17-upright post, 18 connecting point, 19-first three-dimensional fiber grating acceleration sensor, 20-upright post support, 21-foundation bolt and 22-second three-dimensional fiber grating acceleration sensor.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present disclosure more apparent, the technical solutions of the embodiments of the present disclosure will be described clearly and completely with reference to the drawings of the embodiments of the present disclosure. It is to be understood that the described embodiments are only a few embodiments of the present disclosure, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the described embodiments of the disclosure without any inventive step, are within the scope of protection of the disclosure.
Referring to fig. 2, 3, 4 and 5, the health monitoring system for the roller coaster track structure based on optical fiber sensing comprises an inner track 7 and an outer track 6, a stiffening rib 12 is connected between the inner track 7 and the outer track 6, the inner track 7 and the outer track 6 are fixedly connected with a V-shaped supporting inclined rod 13, a connecting support 16 is fixed below the V-shaped supporting inclined rod 13, the connecting support 16 is fixed on an upright post 17, and the upright post 17 is fixed on the ground through an upright post support 20;
referring to fig. 1, the system comprises:
the fiber bragg grating sensor module 1 comprises a plurality of fiber bragg grating strain sensors and a plurality of three-dimensional fiber bragg grating acceleration sensors and is arranged on a roller coaster track; the first fiber grating strain sensor 8, the second fiber grating strain sensor 9, the third fiber grating strain sensor 10 and the fourth fiber grating strain sensor 11 are arranged on the inner sides of the inner rail 7 and the outer rail 6 in an opposite and alternate manner and are used for realizing strain state detection of a rail structure; the fifth fiber bragg grating strain sensor 14 and the sixth fiber bragg grating strain sensor 15 are arranged on two sides of the inner side of the V-shaped supporting inclined rod 13, are arranged in an oblique angle opposite direction and are used for detecting the strain state of the V-shaped supporting inclined rod 13; the three-dimensional fiber bragg grating acceleration sensor is arranged on a connecting support 16 and an upright post support 20 at the corner of a roller coaster track and in a region with large impact, wherein a first three-dimensional fiber bragg grating acceleration sensor 19 is arranged at the top of the connecting support 16 and is positioned between two connecting points 18 connected with a V-shaped supporting inclined rod 13, and a second three-dimensional fiber bragg grating acceleration sensor 22 is arranged at the center of the bottom of the upright post support 20 and is positioned at the centers of four anchor bolts 21;
the fiber grating demodulator 2 is connected with the fiber grating sensor module 1 through a fiber optic cable and is used for sending detection light to enter the fiber grating sensor and demodulating a wavelength signal generated by the fiber grating sensor;
the monitoring host 3 is provided with upper computer software matched with the fiber grating demodulator 2 and used for driving the fiber grating sensor module 1, controlling the demodulation of the fiber grating demodulator 2 and acquiring the monitoring parameters of the roller coaster track through a communication network;
furthermore, the fiber bragg grating strain sensor and the three-dimensional fiber acceleration sensor are connected in series on one transmission fiber through fusion or a quick connector; or the fiber bragg grating strain sensor and the three-dimensional fiber acceleration sensor are connected with the plurality of transmission fibers in parallel through fusion or a quick connector, so that a distributed fiber bragg grating sensor network is formed, and the multipoint monitoring of the roller coaster track is completed.
Furthermore, the fiber bragg grating strain sensor adopts bare fiber bragg grating; the three-dimensional fiber grating acceleration sensor adopts a vertical fiber grating acceleration sensor, and the vertical fiber grating acceleration sensor comprises a packaged fiber grating, a mass block and an elastomer structure.
Further, the fiber grating strain sensor mounting process is as follows: polishing the mounting point of the fiber grating strain sensor on the roller coaster track, firstly carrying out surface treatment by using acetone, then cleaning by using alcohol, carrying out two-point type pasting on the fiber grating by using epoxy resin, controlling pretension by using a magnetic clamp, and finally carrying out waterproof sealing treatment on the fiber grating strain sensor by using 704 glue.
Further, a threaded hole is formed in the bottom of the three-dimensional fiber grating acceleration sensor, and the installation process of the three-dimensional fiber grating acceleration sensor is as follows: the three-dimensional fiber grating acceleration sensor is fixed on a connecting block by using a bolt through a threaded hole at the bottom of the three-dimensional fiber grating acceleration sensor, the connecting block is symmetrically provided with a plurality of threaded holes along the circumferential direction of the center, the connecting block is fixed on a welding block by using the bolt through the threaded hole of the connecting block, and then the welding block is welded and fixed with a support of a roller coaster track.
Furthermore, the fiber grating demodulator 2 is a multi-channel high-speed fiber grating modulation and demodulation device based on a tunable laser, which adopts a narrow-band tunable light source to emit detection light to enter a fiber grating sensor in a monitoring area, periodically scans the reflection spectrum or transmission spectrum of the fiber grating, and demodulates the wavelength signal generated by the fiber grating sensor.
Further, the monitoring host 3 is an industrial computer, and communicates with the fiber grating demodulator 2 through a network port by using a UDP protocol.
Further, the system also comprises a remote monitoring center 5 and an extended monitoring 4, wherein:
the remote monitoring center 5 comprises a server, a storage and a firewall, is provided with a roller coaster track structure health detection system software, and is used for performing information interaction with the monitoring host 3 through a router and a switch, and performing remote cloud service of real-time monitoring, statistical analysis and event alarming;
and the extension monitor 4 is used for monitoring the server, the memory, the switch and the firewall and maintaining the network information security in the remote cloud service process.
Further, the software of the health detection system for the track structure of the roller coaster is internally provided with a characteristic database, and the establishment process of the characteristic database is as follows:
important positions and corresponding power parameters in the roller coaster track structure are found through modeling and power simulation analysis of the roller coaster track structure, and parameters of the roller coaster track in a normal running state and under different faults are obtained through arranging corresponding sensors at the important positions, so that a characteristic database of the roller coaster track running parameters is established.
Furthermore, the roller coaster track structure health detection system software comprises a visualization module, a statistical analysis module and an event alarm module; the visualization module is used for converting the received sensor wavelength data into physical quantity for visualization display; the statistical analysis module is used for managing the historical data acquired by the sensor, performing statistical analysis and realizing the query of the sensor data in any time period; the event alarm module is used for judging whether the sensor data deviate from a preset threshold interval or not, and if the sensor data deviate from the threshold interval, the alarm information is sent to an administrator.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. The utility model provides a roller coaster track structure health monitoring system based on optical fiber sensing which characterized in that: the roller coaster track comprises an inner track and an outer track, a stiffening rib is connected between the inner track and the outer track, the inner track and the outer track are fixedly connected with a V-shaped supporting inclined rod, a connecting support is fixed below the V-shaped supporting inclined rod and is fixed on an upright post, and the upright post is fixed on the ground through the upright post support;
the system comprises:
the fiber bragg grating sensor module comprises a plurality of fiber bragg grating strain sensors and a plurality of three-dimensional fiber bragg grating acceleration sensors and is arranged on the roller coaster track; wherein, part of the fiber bragg grating strain sensors are arranged at the inner sides of the inner rail and the outer rail in opposite and alternate arrangement and are used for realizing the strain state detection of the rail structure; the other part of the fiber bragg grating strain sensors are arranged on two sides of the inner side of the V-shaped supporting diagonal rod and are arranged in opposite directions at an oblique angle to realize strain state detection of the V-shaped supporting diagonal rod; the three-dimensional fiber bragg grating acceleration sensor is arranged on a connecting support and an upright post support at a corner of a roller coaster track and in a region with large impact, and is particularly arranged at the top of the connecting support, between two connecting points connected with a V-shaped supporting inclined rod and at the center of the bottom of the upright post support;
the fiber grating demodulator is connected with the fiber grating sensor module through a fiber optic cable and is used for sending detection light to enter the fiber grating sensor and demodulating a wavelength signal generated by the fiber grating sensor;
and the monitoring host is provided with upper computer software matched with the fiber grating demodulator and is used for driving the fiber grating sensor module, controlling the demodulation of the fiber grating demodulator and acquiring the monitoring parameters of the roller coaster track through a communication network.
2. The fiber-sensing-based roller coaster track structure health monitoring system of claim 1, wherein: the fiber bragg grating strain sensor and the three-dimensional fiber acceleration sensor are connected in series on a transmission fiber through fusion or a quick connector; or the fiber bragg grating strain sensor and the three-dimensional fiber acceleration sensor are connected with the plurality of transmission fibers in parallel through fusion or a quick connector, so that a distributed fiber bragg grating sensor network is formed, and the multipoint monitoring of the roller coaster track is completed.
3. The fiber-sensing-based roller coaster track structure health monitoring system of claim 1, wherein: the fiber bragg grating strain sensor adopts bare fiber bragg grating; the three-dimensional fiber grating acceleration sensor adopts a vertical fiber grating acceleration sensor, and the vertical fiber grating acceleration sensor comprises a packaged fiber grating, a mass block and an elastomer structure.
4. The fiber-sensing-based roller coaster track structure health monitoring system of claim 2, wherein: the installation process of the fiber grating strain sensor comprises the following steps: polishing the mounting point of the fiber grating strain sensor on the roller coaster track, performing surface treatment and cleaning by using an organic solvent, and fixing the fiber grating strain sensor on the mounting point by using glue.
5. The fiber-sensing-based roller coaster track structure health monitoring system of claim 2, wherein: the bottom of the three-dimensional fiber grating acceleration sensor is provided with a threaded hole, and the installation process of the three-dimensional fiber grating acceleration sensor is as follows: the three-dimensional fiber grating acceleration sensor is fixed on a connecting block by using a bolt through a threaded hole at the bottom of the three-dimensional fiber grating acceleration sensor, the connecting block is symmetrically provided with a plurality of threaded holes along the circumferential direction of the center, the connecting block is fixed on a welding block by using the bolt through the threaded hole of the connecting block, and then the welding block is welded and fixed with a support of a roller coaster track.
6. The fiber-sensing-based roller coaster track structure health monitoring system of claim 1, wherein: the fiber grating demodulator is a multi-channel high-speed fiber grating modulation and demodulation device based on a tunable laser, and the device adopts a narrow-band tunable light source to emit detection light to enter a fiber grating sensor in a monitoring area, periodically scans the reflection spectrum or the transmission spectrum of a fiber grating, and demodulates a wavelength signal generated by the fiber grating sensor.
7. The fiber-sensing-based roller coaster track structure health monitoring system of claim 1, wherein: the monitoring host is an industrial computer and communicates with the fiber grating demodulator through a network port by adopting a UDP protocol.
8. The fiber-sensing-based roller coaster track structure health monitoring system of claim 1, wherein: the system also includes a remote monitoring center and an extended monitoring, wherein:
the remote monitoring center comprises a server, a storage and a firewall, is provided with a roller coaster track structure health detection system software, and is used for performing information interaction with the monitoring host through the router and the switch, and performing remote cloud service of real-time monitoring, statistical analysis and event alarming;
and the expansion monitoring is used for monitoring the server, the memory, the switch and the firewall and maintaining the network information security in the remote cloud service process.
9. The fiber-sensing-based roller coaster track structure health monitoring system of claim 8, wherein: the software of the health detection system for the track structure of the roller coaster is internally provided with a characteristic database, and the establishment process of the characteristic database is as follows:
important positions and corresponding power parameters in the roller coaster track structure are found through modeling and power simulation analysis of the roller coaster track structure, and parameters of the roller coaster track in a normal running state and under different faults are obtained through arranging corresponding sensors at the important positions, so that a characteristic database of the roller coaster track running parameters is established.
10. The fiber-sensing-based roller coaster track structure health monitoring system of claim 8, wherein: the software of the health detection system for the rail structure of the roller coaster comprises a visualization module, a statistical analysis module and an event alarm module; the visualization module is used for converting the received sensor wavelength data into physical quantity for visualization display; the statistical analysis module is used for managing the historical data acquired by the sensor, performing statistical analysis and realizing the query of the sensor data in any time period; the event alarm module is used for judging whether the sensor data deviate from a preset threshold interval or not, and if the sensor data deviate from the threshold interval, the alarm information is sent to an administrator.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110555631.XA CN113358151A (en) | 2021-05-21 | 2021-05-21 | Roller coaster track structure health monitoring system based on optical fiber sensing |
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| CN202110555631.XA CN113358151A (en) | 2021-05-21 | 2021-05-21 | Roller coaster track structure health monitoring system based on optical fiber sensing |
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| CN113358151A true CN113358151A (en) | 2021-09-07 |
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