CN117629289A - Railway bridge health monitoring system based on LTE wireless network - Google Patents
Railway bridge health monitoring system based on LTE wireless network Download PDFInfo
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Abstract
The invention discloses a railway bridge health monitoring system based on an LTE wireless network, which relates to the field of bridge monitoring and comprises a plurality of bridge monitoring units, a plurality of LTE transmitters and a railway bridge monitoring platform, wherein the bridge monitoring units are distributed on a bridge and are used for acquiring bridge data based on sensors and analyzing the acquired bridge data based on intelligent gateways in the bridge monitoring units to obtain bridge state information; the LTE transmitters are used for sending the bridge state information obtained by the bridge monitoring units through analysis, and the LTE transmitters are in one-to-one correspondence with the bridge monitoring units; the railway bridge monitoring platform is used for fusing and sharing bridge state information sent by the LTE transmitter. The invention can realize effective monitoring of the railway bridge.
Description
Technical Field
The invention relates to the field of bridge monitoring, in particular to a railway bridge health monitoring system based on an LTE wireless network.
Background
LTE (Long Term Evolution ) is a long term evolution of the UMTS (Universal Mobile Telecommunications System ) technical standard established by the 3GPP (3 rd Generation Partnership Project, third generation partnership project) organization. The LTE system introduces key transmission technologies such as OFDM (Orthogonal Frequency Division Multiplexing ), MIMO (multiple-input multiple-output), and the like, which significantly increases the spectrum efficiency and the data transmission rate (20M bandwidth 2×2MIMO is 201Mbps in the case of 64QAM, the theoretical maximum downlink transmission rate is approximately 140Mbps after the signaling overhead is removed, but according to the practical networking and terminal capability limitations, the downlink peak rate is generally considered to be 100Mbps, and the uplink is 50 Mbps), and supports multiple bandwidth allocation: 4MHz, 3MHz, 5MHz, 10MHz, 15MHz, 20MHz, etc., and support global mainstream 2G/3G frequency bands and some newly added frequency bands, thus the spectrum allocation is more flexible, and the system capacity and coverage are also obviously improved. The LTE system network architecture is flatter and simpler, and network nodes and system complexity are reduced, so that system delay is reduced, and network deployment and maintenance cost is also reduced. The LTE system supports interoperability with other 3GPP systems. The LTE system has two systems: FDD-LTE and TDD-LTE, i.e. frequency division duplex LTE systems and time division duplex LTE systems, are mainly distinguished by the technology on the physical layer of the air interface (frame structure, time division design, synchronization, etc.). The uplink and downlink transmission of the FDD-LTE system adopts a pair of symmetrical frequency bands to receive and transmit data, and the uplink and downlink of the TDD-LTE system uses the same frequency band to transmit on different time slots, so that the TDD has higher frequency spectrum utilization rate compared with the FDD duplex mode.
The railway bridge line is long, a plurality of bridge health monitoring systems are built at the same time, a monitoring system platform is built, and data of the on-site bridge health monitoring systems are required to be collected and uploaded to a monitoring center. The common practice is to lay the optical cable on site or transmit by utilizing the existing communication machine room of the railway line and the railway private network, and the distance between the bridge and the existing communication machine room of the railway and the access point of the railway private network becomes a key problem affecting the construction cost, progress and effect of the railway bridge health monitoring system. It can be seen that the existing bridge monitoring mode has difficulty in realizing effective monitoring of the bridge.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a name which can realize effective monitoring of a railway bridge.
To achieve the above object, the present invention provides a railroad bridge health monitoring system based on an LTE wireless network, comprising:
the bridge monitoring units are distributed on the bridge and are used for acquiring bridge data based on the sensors and analyzing the acquired bridge data based on intelligent gateways in the bridge monitoring units to acquire bridge state information;
the LTE transmitters are used for sending the bridge state information obtained by analysis of the bridge monitoring units, and the LTE transmitters correspond to the bridge monitoring units one by one;
the railway bridge monitoring platform is used for fusing and sharing bridge state information sent by the LTE transmitter.
On the basis of the technical scheme, the bridge state information comprises vehicle information, time information and bridge structure characteristic information.
On the basis of the technical scheme, the bridge monitoring unit comprises a sensor, acquisition equipment, an intelligent gateway and a switch.
On the basis of the technical proposal, the method comprises the following steps,
the sensor is used for collecting bridge data and transmitting the bridge data to the collecting equipment;
the acquisition equipment is used for collecting bridge data acquired by the sensor and transmitting the bridge data to the intelligent gateway;
the intelligent gateway is used for analyzing the bridge data to obtain bridge state information;
the switch is used for sending bridge state information obtained by intelligent gateway analysis to an LTE transmitter corresponding to a bridge monitoring unit where the current switch is located.
On the basis of the technical proposal, the method comprises the following steps,
the intelligent gateway comprises an information sending function and an information receiving function;
the information sending function is used for analyzing and analyzing bridge data in real time, analyzing characteristics in the bridge data, acquiring vehicle information, time information and bridge structure characteristic information of a bridge, and sending the bridge information and the time information and the bridge structure characteristic information to the LTE transmitter through the switch;
the information receiving function is used for connecting the railway bridge monitoring platform through the LTE transmitter, acquiring bridge state information of other bridges in the bridge cluster, performing data analysis and reconstruction, and then transmitting the bridge state information back to the railway bridge monitoring platform.
On the basis of the technical proposal, the method comprises the following steps,
the LTE transmitter comprises a security management unit, a micro-processing unit and an information interface;
the safety management unit is used for receiving the authorized login of the user, the authorized user logs in the railway bridge monitoring platform through the SSID and the password to acquire bridge state information of each bridge, and the bridge monitoring unit manages through the safety management unit;
the micro-processing unit is used for reconstructing and packaging the bridge state information of the bridge monitoring unit to form a data packet;
the information interface is used for carrying out data interaction with the outside.
On the basis of the technical proposal, the method comprises the following steps,
the LTE transmitter further comprises a power supply interface;
the power supply interface is used for supplying power to the LTE transmitter.
On the basis of the technical scheme, the LTE transmitter is connected with the switch through a network port.
On the basis of the technical proposal, the method comprises the following steps,
the railway bridge health monitoring system further comprises an LTE receiver;
the LTE receiver is used for receiving bridge state information sent by the LTE transmitter and sending the bridge state information to the railway bridge monitoring platform.
On the basis of the technical scheme, the LTE receiver comprises a wireless node and a continuous unit, the bridge state information sent by the LTE transmitter is received through the wireless node, and the bridge state information is continuously received through the continuous unit until the bridge state information enters the railway bridge monitoring platform.
Compared with the prior art, the invention has the advantages that: after bridge data acquired by a sensor are collected through acquisition equipment in a bridge monitoring unit, data analysis is carried out through an intelligent gateway, bridge state information obtained through analysis is uploaded to a railway bridge monitoring platform through an LTE transmitter with a network port function, the railway bridge monitoring platform is utilized to realize full fusion and sharing of the bridge state information, the full fusion of railway bridge structural feature information, train information and time is realized, and effective monitoring of a railway bridge is realized; and the intelligent gateway is arranged in the bridge monitoring unit to carry out front-end analysis on data, and the vehicle information and the bridge structural feature information of the railway bridge are obtained in the intelligent gateway and then uploaded, so that the problem that the bridge monitoring unit cannot transmit through the LTE network due to large information quantity is solved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of a railroad bridge health monitoring system based on an LTE wireless network in an embodiment of the present invention.
Detailed Description
The embodiment of the invention provides a railway bridge health monitoring system based on an LTE wireless network, which is characterized in that after bridge data acquired by a sensor are collected through acquisition equipment in a bridge monitoring unit, data analysis is carried out through an intelligent gateway, bridge state information obtained through analysis is uploaded to a railway bridge monitoring platform through an LTE transmitter with a network port function, the railway bridge monitoring platform is utilized to realize full fusion and sharing of the bridge state information, the full fusion of the structural feature information, train information and time of the railway bridge is realized, and the effective monitoring of the railway bridge is realized; and the intelligent gateway is arranged in the bridge monitoring unit to carry out front-end analysis on data, and the vehicle information and the bridge structural feature information of the railway bridge are obtained in the intelligent gateway and then uploaded, so that the problem that the bridge monitoring unit cannot transmit through the LTE network due to large information quantity is solved.
For the purposes of making the objects, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. In the description of the present application, it should be noted that the azimuth or positional relationship indicated by the terms "upper", "lower", etc. are based on the azimuth or positional relationship shown in the drawings, and are merely for convenience of description of the present application and simplification of the description, and are not indicative or implying that the apparatus or element in question must have a specific azimuth, be configured and operated in a specific azimuth, and thus should not be construed as limiting the present application. Unless specifically stated or limited otherwise, the terms "mounted," "connected," and "coupled" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.
Aiming at the problems of higher data safety and lower wireless transmission safety of the existing bridge health monitoring system, the invention avoids information leakage and back door intrusion into other business systems through entrance control and exit control in order to ensure the safety of the bridge health monitoring system. Specifically, referring to fig. 1, an embodiment of the present invention provides a railroad bridge health monitoring system based on an LTE wireless network, which includes a plurality of bridge monitoring units, a plurality of LTE transmitters, a railroad bridge monitoring platform, and an LTE receiver. The bridge in the invention refers to a railway bridge.
The bridge monitoring units are distributed on the bridge and are used for acquiring bridge data based on the sensors and analyzing the acquired bridge data based on intelligent gateways in the bridge monitoring units to acquire bridge state information. The bridge status information includes vehicle information, time information, and bridge structural feature information. Bridge data such as image monitoring information, vibration information and the like of the bridge are acquired through the sensor, and then vehicle information, time information and bridge structural feature information of the bridge can be obtained according to analysis of the data. The time information may be the time the train passes through the bridge, the time the bridge has been in use, etc. The bridge structural characteristic information can be deflection, stress, vibration response and the like of the bridge.
Specifically, the bridge monitoring unit comprises a sensor, acquisition equipment, an intelligent gateway and a switch. The sensor is used for collecting bridge data and transmitting the bridge data to the collecting equipment; the acquisition equipment is used for collecting bridge data acquired by the sensor and transmitting the bridge data to the intelligent gateway; the intelligent gateway is used for analyzing the bridge data to obtain bridge state information; the switch is used for sending bridge state information obtained through intelligent gateway analysis to the LTE transmitter corresponding to the bridge monitoring unit where the current switch is located. In the practical application process, each bridge is provided with a bridge monitoring unit, and meanwhile, each bridge monitoring unit comprises a plurality of sensors of different types for monitoring the comprehensiveness of data.
For the intelligent gateway, the intelligent gateway comprises an information sending function and an information receiving function; the information sending function is used for analyzing and analyzing bridge data in real time, analyzing characteristics in the bridge data, acquiring vehicle information, time information and bridge structure characteristic information of a bridge, and sending the bridge information and the time information and the bridge structure characteristic information to the LTE transmitter through the switch; the bridge status information may also include special warning information. The front-end analysis is carried out on the data, and the vehicle information and the bridge structure characteristic information of the railway bridge are obtained in the intelligent gateway and then uploaded, so that the problem that the bridge monitoring unit cannot transmit through the LTE network due to large information quantity is solved.
The information receiving function is used for connecting the railway bridge monitoring platform through the LTE transmitter, acquiring bridge state information of other bridges in the bridge cluster, performing data analysis and reconstruction, and then transmitting the bridge state information back to the railway bridge monitoring platform. The intelligent gateway is connected with the railway bridge monitoring platform through the LTE transmitter, acquires bridge state information of other bridges in the bridge cluster, and then invokes relevant data to perform data analysis and reconstruction, and transmits the information back to the monitoring center.
In the invention, the LTE transmitter is used for transmitting the bridge state information obtained by the analysis of the bridge monitoring unit, and the LTE transmitter corresponds to the bridge monitoring unit one by one. That is, the number of LTE transmitters is the same as the number of bridge monitoring units, and each LTE transmitter corresponds to one bridge monitoring unit.
The LTE transmitter comprises a safety management unit, a micro-processing unit, an information interface and a power supply interface; the safety management unit is used for receiving the authorized login of the user, the authorized user logs in the railway bridge monitoring platform through SSID (Service Set Identifier) and password to obtain bridge state information of each bridge, and the bridge monitoring unit manages through the safety management unit. The security management unit is used for receiving the login of the user, carrying out security management of the bridge monitoring unit, and authorizing the user to log in the railway bridge monitoring platform through the SSID and the password so as to acquire bridge state information of each bridge.
The micro-processing unit is used for reconstructing and packaging the bridge state information of the bridge monitoring unit to form a data packet; the bridge state information of the bridge monitoring unit is subjected to data management and reconstruction and packaging according to requirements through a micro-processing unit in the LTE transmitter to form a data packet, wherein the data packet content comprises the name of a measuring point of data, the time of the data, the event type, characteristic information and coding information.
The information interface is used for carrying out data interaction with the outside. Specifically, the LTE transmitter is connected to the switch through a network port, and the LTE transmitter is connected to the LTE receiver through wireless. The power supply interface is used for supplying power to the LTE transmitter.
The railway bridge monitoring platform is used for fusing and sharing bridge state information sent by the LTE transmitter. And carrying out fusion analysis on the vehicle information, the time information and the bridge structure characteristic information, for example, combining the bridge structure characteristic information when a train passes through a bridge, and changing the bridge structure characteristic information so as to better know the running state of the bridge.
The LTE receiver is used for receiving bridge state information sent by the LTE transmitter and sending the bridge state information to the railway bridge monitoring platform. The LTE receiver is located in a backbone network. The LTE receiver comprises a wireless node and a continuous unit, receives bridge state information sent by the LTE transmitter through the wireless node, and continuously receives the bridge state information through the continuous unit until the bridge state information enters the railway bridge monitoring platform.
The railroad bridge health monitoring system based on the LTE wireless network of the present invention will be specifically described with reference to the following example.
And installing a sensor, acquisition equipment and a switch on a certain railway bridge, and arranging an intelligent gateway at the end head of the bridge. The railway bridge monitoring platform is arranged in the machine room.
And arranging a plurality of sensors on the bridge, arranging certain acquisition equipment, arranging the acquisition equipment, a switch and an intelligent gateway into a network of 192.168.10.Xx number segments, and arranging an acquisition program and an analysis program in the intelligent gateway. And arranging a switch at the outlet of the bridge monitoring unit, connecting the switch with an LTE transmitter, arranging user inlet authority in the LTE transmitter, connecting an intelligent gateway, obtaining the time of each train passing through the bridge after the intelligent gateway obtains monitoring data, analyzing the data according to the train time, obtaining the deflection, stress and vibration response of the bridge, uploading the analyzed data and time characteristic information to the LTE transmitter, accessing to a main trunk network, and accessing to a railway bridge monitoring platform.
According to the railway bridge health monitoring system based on the LTE wireless network, after bridge data obtained by sensor monitoring are collected through the collecting equipment, data analysis is carried out through the intelligent gateway, the analyzed bridge state information is uploaded to the railway bridge monitoring platform through the LTE transmitter with the network port function, and the railway bridge monitoring platform is utilized to realize full fusion and sharing of the bridge state information, so that full fusion of the structural feature information, train information and time of the railway bridge is realized, and monitoring of the bridge information is effectively realized; the bandwidth of the LTE wireless network is generally narrow, the amount of the traffic needing to be borne is large, and the bandwidth allocated to each traffic is insufficient, so that mass data in bridge health monitoring cannot be transmitted, therefore, the bridge monitoring unit performs front-end analysis on the data by arranging an intelligent gateway, and the data are uploaded after obtaining the vehicle information, the bridge structural feature information and related coding information of a railway bridge in the intelligent gateway, so that the problem that the large amount of information is generated in the bridge monitoring unit and cannot be transmitted through the LTE network is solved.
In a possible implementation manner, the embodiment of the invention further provides a non-transitory computer readable storage medium, wherein the readable storage medium is located in a PLC (Programmable Logic Controller ) controller, and a computer program is stored on the readable storage medium, and when the program is executed by a processor, the step of analyzing bridge data to obtain bridge state information is realized. In particular, the non-transitory computer readable storage medium may be located inside the intelligent gateway.
The storage media may take the form of any combination of one or more computer-readable media. The computer readable medium may be a computer readable signal medium or a computer readable storage medium. The computer readable storage medium may be, for example, but not limited to: an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or a combination of any of the foregoing. More specific examples (a non-exhaustive list) of the computer-readable storage medium would include the following: an electrical connection having one or more wires, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing. In this document, a computer readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device.
The computer readable signal medium may include a propagated data signal with computer readable program code embodied therein, either in baseband or as part of a carrier wave. Such a propagated data signal may take any of a variety of forms, including, but not limited to, electro-magnetic, optical, or any suitable combination of the foregoing. A computer readable signal medium may also be any computer readable medium that is not a computer readable storage medium and that can communicate, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device. Program code embodied on a computer readable medium may be transmitted using any appropriate medium, including but not limited to: wireless, wire, fiber optic cable, RF, etc., or any suitable combination of the foregoing.
Computer program code for carrying out operations of the present invention may be written in one or more programming languages, including an object oriented programming language such as Java, smalltalk, C ++ and conventional procedural programming languages, such as the "C" programming language or similar programming languages. The program code may execute entirely on the user's computer, partly on the user's computer, as a stand-alone software package, partly on the user's computer and partly on a remote computer or entirely on the remote computer or server. In the case of a remote computer, the remote computer may be connected to the user's computer through any kind of network, including a Local Area Network (LAN) or a Wide Area Network (WAN), or may be connected to an external computer (for example, through the Internet using an Internet service provider).
In the description of the present application, it should be noted that the azimuth or positional relationship indicated by the terms "upper", "lower", etc. are based on the azimuth or positional relationship shown in the drawings, and are merely for convenience of description of the present application and simplification of the description, and are not indicative or implying that the apparatus or element in question must have a specific azimuth, be configured and operated in a specific azimuth, and thus should not be construed as limiting the present application. Unless specifically stated or limited otherwise, the terms "mounted," "connected," and "coupled" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.
It should be noted that in this application, relational terms such as "first" and "second" and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
The foregoing is merely a specific embodiment of the application to enable one skilled in the art to understand or practice the application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. Railway bridge health monitoring system based on LTE wireless network, characterized by comprising:
the bridge monitoring units are distributed on the bridge and are used for acquiring bridge data based on the sensors and analyzing the acquired bridge data based on intelligent gateways in the bridge monitoring units to acquire bridge state information;
the LTE transmitters are used for sending the bridge state information obtained by analysis of the bridge monitoring units, and the LTE transmitters correspond to the bridge monitoring units one by one;
the railway bridge monitoring platform is used for fusing and sharing bridge state information sent by the LTE transmitter.
2. The railroad bridge health monitoring system based on an LTE wireless network of claim 1, wherein: the bridge state information comprises vehicle information, time information and bridge structure characteristic information.
3. The railroad bridge health monitoring system based on an LTE wireless network of claim 2, wherein: the bridge monitoring unit comprises a sensor, acquisition equipment, an intelligent gateway and a switch.
4. A railroad bridge health monitoring system based on an LTE wireless network as set forth in claim 3, wherein:
the sensor is used for collecting bridge data and transmitting the bridge data to the collecting equipment;
the acquisition equipment is used for collecting bridge data acquired by the sensor and transmitting the bridge data to the intelligent gateway;
the intelligent gateway is used for analyzing the bridge data to obtain bridge state information;
the switch is used for sending bridge state information obtained by intelligent gateway analysis to an LTE transmitter corresponding to a bridge monitoring unit where the current switch is located.
5. The railroad bridge health monitoring system based on an LTE wireless network of claim 4, wherein:
the intelligent gateway comprises an information sending function and an information receiving function;
the information sending function is used for analyzing and analyzing bridge data in real time, analyzing characteristics in the bridge data, acquiring vehicle information, time information and bridge structure characteristic information of a bridge, and sending the bridge information and the time information and the bridge structure characteristic information to the LTE transmitter through the switch;
the information receiving function is used for connecting the railway bridge monitoring platform through the LTE transmitter, acquiring bridge state information of other bridges in the bridge cluster, performing data analysis and reconstruction, and then transmitting the bridge state information back to the railway bridge monitoring platform.
6. The railroad bridge health monitoring system based on an LTE wireless network of claim 4, wherein:
the LTE transmitter comprises a security management unit, a micro-processing unit and an information interface;
the safety management unit is used for receiving the authorized login of the user, the authorized user logs in the railway bridge monitoring platform through the SSID and the password to acquire bridge state information of each bridge, and the bridge monitoring unit manages through the safety management unit;
the micro-processing unit is used for reconstructing and packaging the bridge state information of the bridge monitoring unit to form a data packet;
the information interface is used for carrying out data interaction with the outside.
7. The railroad bridge health monitoring system based on an LTE wireless network of claim 6, wherein:
the LTE transmitter further comprises a power supply interface;
the power supply interface is used for supplying power to the LTE transmitter.
8. The railroad bridge health monitoring system based on an LTE wireless network of claim 6, wherein: the LTE transmitter is connected with the switch through a network port.
9. The railroad bridge health monitoring system based on an LTE wireless network of claim 1, wherein:
the railway bridge health monitoring system further comprises an LTE receiver;
the LTE receiver is used for receiving bridge state information sent by the LTE transmitter and sending the bridge state information to the railway bridge monitoring platform.
10. The railroad bridge health monitoring system based on an LTE wireless network of claim 9, wherein: the LTE receiver comprises a wireless node and a continuous unit, receives bridge state information sent by the LTE transmitter through the wireless node, and continuously receives the bridge state information through the continuous unit until the bridge state information enters the railway bridge monitoring platform.
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| CN202311585909.3A CN117629289A (en) | 2023-11-24 | 2023-11-24 | Railway bridge health monitoring system based on LTE wireless network |
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| CN202311585909.3A CN117629289A (en) | 2023-11-24 | 2023-11-24 | Railway bridge health monitoring system based on LTE wireless network |
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