CN111885192A - Bridge health intelligent monitoring system based on NB-IoT - Google Patents
Bridge health intelligent monitoring system based on NB-IoT Download PDFInfo
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- CN111885192A CN111885192A CN202010754435.0A CN202010754435A CN111885192A CN 111885192 A CN111885192 A CN 111885192A CN 202010754435 A CN202010754435 A CN 202010754435A CN 111885192 A CN111885192 A CN 111885192A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/02—Protocols based on web technology, e.g. hypertext transfer protocol [HTTP]
- H04L67/025—Protocols based on web technology, e.g. hypertext transfer protocol [HTTP] for remote control or remote monitoring of applications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/12—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
- H04L67/125—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks involving control of end-device applications over a network
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/30—Services specially adapted for particular environments, situations or purposes
- H04W4/38—Services specially adapted for particular environments, situations or purposes for collecting sensor information
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/02—Power saving arrangements
- H04W52/0209—Power saving arrangements in terminal devices
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Abstract
The invention relates to an NB-IoT-based intelligent bridge health monitoring system, which is characterized by comprising the following components: the monitoring sensors comprise a plurality of groups of sensors and are used for acquiring various required bridge health state monitoring data; the terminal unit comprises an MCU, a liquid crystal display and an NB-IoT communication module, wherein the MCU is used for data acquisition, control and operation, the liquid crystal display is used for displaying related data and information, and the NB-IoT communication module is used for realizing information exchange between the terminal unit and the cloud server; the power supply module is used for supplying power to the monitoring sensor and the terminal unit; the cloud server is simultaneously connected with the terminal unit and the monitoring client to realize information exchange between the terminal unit and the monitoring client; and the monitoring client is used for performing multifunctional processing, analysis and display on the information sent by the terminal unit and is also used for remotely setting equipment monitoring parameters. The system is beneficial to monitoring the health state of the bridge in a large range with low cost, low power consumption and long service life.
Description
Technical Field
The invention relates to the technical field of bridge health monitoring, in particular to an NB-IoT-based intelligent bridge health monitoring system.
Background
With the continuous progress of science and technology, the safety state, the change characteristics and the development trend of structures such as bridge tunnels are monitored, early-warned and evaluated by fully utilizing new-generation information technologies such as internet of things, space perception, cloud computing and mobile internet, so that the automation, the real-time, the intellectualization and the networking of the health monitoring of bridge structures are realized, and the method becomes a new hotspot technical problem in the field of current bridge engineering.
Compared with other data transmission modes such as GPRS, 4G, WiFi, Bluetooth, ZigBee and the like, the NB-IOT (narrowband Internet of things) technology draws wide attention due to the characteristics of long transmission distance, strong penetration capability, ultra-low power consumption, large access, low cost and the like.
The sensing equipment based on the NB-IoT technology has the advantages of low cost, simple layout, long-term maintenance-free, strong coverage capability of the NB-IoT base station, no geographical condition limitation on connection, large connection capacity, capability of meeting the requirement of densely laying the sensing equipment, low connection cost by relying on the NB-IoT network of an operator to transmit data, and obvious advantages of the NB-IoT technology in the aspect of traffic basic monitoring such as bridge tunnels and the like.
Disclosure of Invention
The invention aims to provide an NB-IoT-based intelligent bridge health monitoring system which is beneficial to monitoring the health state of a bridge in a large range with low cost, low power consumption and long service life.
In order to achieve the purpose, the invention adopts the technical scheme that: an NB-IoT based intelligent bridge health monitoring system, comprising:
the monitoring sensors comprise a plurality of groups of sensors and are used for acquiring various required bridge health state monitoring data;
the terminal unit comprises a low-power consumption MCU, a liquid crystal display and an NB-IoT communication module, wherein the MCU is used for data acquisition, control and operation, the liquid crystal display is used for displaying related data and information, and the NB-IoT communication module is connected with the cloud server through a base station and is used for realizing information exchange between the terminal unit and the cloud server so as to send monitoring data and equipment working state information and receive control instructions and information sent by a monitoring client;
the power supply module is used for supplying power to the monitoring sensor and the terminal unit;
the cloud server is simultaneously connected with the terminal unit and the monitoring client, and is used for receiving the monitoring data and the equipment working state information sent by the terminal unit and forwarding the monitoring data and the equipment working state information to the monitoring client, and also used for receiving the equipment monitoring parameters sent by the monitoring client and forwarding the equipment monitoring parameters to the terminal unit; and
and the monitoring client is used for performing multifunctional processing, analysis and display on the information sent by the terminal unit, setting the equipment monitoring parameters and sending the equipment monitoring parameters to the terminal unit through the cloud server so as to realize remote setting of the equipment monitoring parameters.
Further, the monitoring sensor comprises a vibration sensor, a strain sensor, an inclination angle sensor and a displacement sensor.
Furthermore, the monitoring sensor also comprises one or more of a cable force sensor, an acceleration sensor, a wind direction and wind speed sensor and a temperature sensor.
Furthermore, the terminal unit takes a low-power consumption MCU as a core, and a BIOS program and a terminal program are installed in the terminal unit in a curing way and are used for remotely downloading, updating and displaying the acquisition program; an NB-IoT card or an eSIM card is arranged in an NB-IoT communication module in the terminal unit, and each terminal unit has a unique IMSI number for distinguishing different terminal units; the terminal unit actively initiates NB-IoT communication in a mode of timer, switching value input or touch key interruption.
Furthermore, a forwarding program runs on the cloud server, all the terminal units and the monitoring client actively establish connection with the forwarding program, and forward uplink and downlink data through the forwarding program; the cloud server establishes a data monitoring mechanism, receives, stores and analyzes data in real time, and issues an equipment monitoring instruction of a monitoring client to a terminal unit through an NB-IoT communication module to remotely control equipment.
Further, the monitoring client comprises a webpage monitoring platform and a mobile phone APP, and interacts with the cloud server to achieve data acquisition and control of the terminal unit; the webpage monitoring platform comprises an online monitoring system, and the online monitoring system comprises an online monitoring function module, a data analysis function module, a data export function module and an alarm function module; cell-phone APP is used for showing monitoring data on mobile terminal, sends alarm information when monitoring data surpasss the threshold value that sets up, still is used for assigning the remote monitoring instruction.
Further, the power module comprises one or more of a charger, a rechargeable lithium battery, a photovoltaic cell panel and a storage battery, and is used for supplying power to the monitoring sensor and the terminal unit.
Further, the cloud server is connected with a big data platform, and the big data platform analyzes massive monitoring data collected by each monitoring point of the structure and provides an analysis result.
Compared with the prior art, the invention has the following beneficial effects: the invention provides an NB-IoT (NB-IoT) -based intelligent bridge health monitoring system, which is used for monitoring health state parameters and the change trend of a bridge; the system integrates the monitoring sensor module, the MCU module and the NB-IoT communication module, and solves the problems of high cost, difficult wiring, difficult field installation and the like of a wired sensor; based on NB-IoT communication, the information transmission with low cost, low power consumption, long service life, wide coverage and high reliability is realized, and the large-scale investment is facilitated; ultra-low manufacturing and service cost and high cost performance; various sensors are flexibly expanded, and the expansion can be customized; by means of cloud computing of a big data platform, long-term real-time monitoring and evaluation of infrastructures such as bridges and tunnels can be achieved.
Drawings
Fig. 1 is a schematic system structure according to an embodiment of the present invention.
Fig. 2 is a schematic diagram of a system networking state according to an embodiment of the present invention.
Fig. 3 is a schematic view of a monitoring interface of a monitoring client according to an embodiment of the present invention.
Detailed Description
The invention is described in further detail below with reference to the figures and the embodiments.
As shown in fig. 1, the invention provides an NB-IoT-based intelligent bridge health monitoring system, which includes a monitoring sensor 1, a terminal unit 2, a power module 5, a cloud server 3, and a monitoring client 4.
The monitoring sensor 1 comprises a plurality of groups of sensors and is used for acquiring required monitoring data of various bridge health states. In the present embodiment, the monitoring sensor 1 includes a vibration sensor, a strain sensor, an inclination sensor, and a displacement sensor. In the preferred embodiment of the present invention, the monitoring sensor 1 may further include one or more of a cable force sensor, an acceleration sensor, a wind direction and speed sensor, and a temperature sensor.
The terminal unit 2 is used for processing interface data and completing service processing by being connected with a cloud server, and comprises a low-power consumption MCU, a liquid crystal display and an NB-IoT communication module, wherein the MCU is used for data acquisition, control and operation, the liquid crystal display is used for displaying relevant data and information such as system running state and the like, and the NB-IoT communication module is connected with the cloud server through a base station and is used for realizing information exchange between the terminal unit 2 and the cloud server 3 so as to send monitoring data and equipment working state information and receive control instructions and information issued by a monitoring client.
The terminal unit 2 takes a low-power consumption MCU as a core, and a BIOS program and a terminal program are installed in the terminal unit in a solidified mode and used for remotely downloading, updating and displaying the acquisition program. In this embodiment, the MCU adopts MSP432P401R as the main controller, and the chip belongs to ARM Cortex M4F core. An NB-IoT card or an eSIM card is arranged in an NB-IoT communication module in the terminal unit, and each terminal unit has a unique IMSI number for distinguishing different terminal units. The terminal unit 2 actively initiates NB-IoT communication by adopting modes of a timer, switching value input, touch key interruption and the like. In this embodiment, the NB-IoT communication module includes a communication module and a peripheral circuit thereof, the communication module uses a shenzhen high emerging internet of things ME3616 communication module, the peripheral circuit includes a main antenna and a GNSS antenna circuit, the main antenna circuit is used for enhancing the signal strength of NB-IoT communication, the GNSS antenna can enhance the precision of Beidou positioning, and the ME3616 communication module uses an external eSIM card.
And the power supply module 5 is used for providing power supply required by normal operation of the system for the monitoring sensor 1 and the terminal unit 2. In a preferred embodiment of the invention, the power module 5 comprises one or more of a charger, a rechargeable lithium battery, a photovoltaic panel and a storage battery.
The cloud server 3 is connected with the terminal unit 2 and the monitoring client 4, and is configured to receive the monitoring data and the device working state information sent by the terminal unit 2 and forward the monitoring data and the device working state information to the monitoring client 4, and is further configured to receive the device monitoring parameters sent by the monitoring client 4 and forward the device monitoring parameters to the terminal unit 2.
A forwarding program runs on the cloud server 3, all the terminal units 2 and the monitoring client 4 are actively connected with the forwarding program, and uplink and downlink data are forwarded through the forwarding program; the cloud server establishes a data monitoring mechanism, receives, stores and analyzes data in real time, and issues an equipment monitoring instruction of the monitoring client 4 to the terminal unit 2 through the NB-IoT communication module to remotely control the equipment.
The monitoring client 4 is used for performing multifunctional processing, analysis and display on information sent by the terminal unit 2, and is also used for setting equipment monitoring parameters, and sending the equipment monitoring parameters to the terminal unit through the cloud server 3, so as to realize remote setting of the equipment monitoring parameters.
The monitoring client 4 comprises a webpage monitoring platform and a mobile phone APP, and interacts with a cloud server monitoring program and a database to achieve data acquisition and control of the terminal unit. The webpage monitoring platform comprises an online monitoring system, the online monitoring system comprises an online monitoring function module, a data analysis function module, a data export function module and an alarm function module, and a monitoring interface of the online monitoring system is shown in figure 3. Cell-phone APP is used for clear visual display monitoring data on mobile terminal, sends alarm information when monitoring data surpasss and sets up the threshold value, still is used for assigning the remote monitoring instruction.
In a preferred embodiment of the present invention, the cloud server 3 is connected to a big data platform, and the big data platform analyzes a large amount of monitoring data collected by each monitoring point of the structure and provides an analysis result.
In the invention, a bridge monitoring node is composed of a monitoring sensor 1, a terminal unit 2 and a power supply module 5. As shown in fig. 2, when system networking is performed, bridge monitoring nodes are respectively installed at different bridges or at different positions and structures of the bridges for respectively monitoring health states of the bridges, and each bridge monitoring node is wirelessly connected with a cloud server through a corresponding NB-IoT base station and performs data interaction with a monitoring client through a wireless communication network, so that intelligent monitoring of bridge health with low cost, low power consumption, long service life and wide coverage is realized based on NB-IoT communication.
The above are preferred embodiments of the present invention, and all changes made according to the technical scheme of the present invention that produce functional effects do not exceed the scope of the technical scheme of the present invention belong to the protection scope of the present invention.
Claims (8)
1. An NB-IoT based intelligent bridge health monitoring system, comprising:
the monitoring sensors comprise a plurality of groups of sensors and are used for acquiring various required bridge health state monitoring data;
the terminal unit comprises a low-power consumption MCU, a liquid crystal display and an NB-IoT communication module, wherein the MCU is used for data acquisition, control and operation, the liquid crystal display is used for displaying related data and information, and the NB-IoT communication module is connected with the cloud server through a base station and is used for realizing information exchange between the terminal unit and the cloud server so as to send monitoring data and equipment working state information and receive control instructions and information sent by a monitoring client;
the power supply module is used for supplying power to the monitoring sensor and the terminal unit;
the cloud server is simultaneously connected with the terminal unit and the monitoring client, and is used for receiving the monitoring data and the equipment working state information sent by the terminal unit and forwarding the monitoring data and the equipment working state information to the monitoring client, and also used for receiving the equipment monitoring parameters sent by the monitoring client and forwarding the equipment monitoring parameters to the terminal unit; and
and the monitoring client is used for performing multifunctional processing, analysis and display on the information sent by the terminal unit, setting the equipment monitoring parameters and sending the equipment monitoring parameters to the terminal unit through the cloud server so as to realize remote setting of the equipment monitoring parameters.
2. The NB-IoT based intelligent bridge health monitoring system of claim 1, wherein the monitoring sensors comprise vibration sensors, strain sensors, tilt sensors, and displacement sensors.
3. The NB-IoT based intelligent bridge health monitoring system according to claim 2, wherein the monitoring sensors further comprise one or more of a cable force sensor, an acceleration sensor, a wind direction and speed sensor, and a temperature sensor.
4. The NB-IoT-based intelligent bridge health monitoring system according to claim 1, wherein the terminal unit takes a low power consumption MCU as a core, and a BIOS program and a terminal program are installed in the terminal unit in a solidified manner and used for remotely downloading, updating and displaying the acquisition program; an NB-IoT card or an eSIM card is arranged in an NB-IoT communication module in the terminal unit, and each terminal unit has a unique IMSI number for distinguishing different terminal units; the terminal unit actively initiates NB-IoT communication in a mode of timer, switching value input or touch key interruption.
5. The intelligent bridge health monitoring system based on NB-IoT (NB-IoT) as claimed in claim 1, wherein a forwarding program is run on the cloud server, all terminal units and monitoring clients actively establish connection with the forwarding program, and forward uplink and downlink data through the forwarding program; the cloud server establishes a data monitoring mechanism, receives, stores and analyzes data in real time, and issues an equipment monitoring instruction of a monitoring client to a terminal unit through an NB-IoT communication module to remotely control equipment.
6. The NB-IoT-based intelligent bridge health monitoring system according to claim 1, wherein the monitoring client comprises a web monitoring platform and a mobile phone APP, and interacts with a cloud server to achieve data acquisition and control of a terminal unit; the webpage monitoring platform comprises an online monitoring system, and the online monitoring system comprises an online monitoring function module, a data analysis function module, a data export function module and an alarm function module; cell-phone APP is used for showing monitoring data on mobile terminal, sends alarm information when monitoring data surpasss the threshold value that sets up, still is used for assigning the remote monitoring instruction.
7. The NB-IoT based intelligent bridge health monitoring system according to claim 1, wherein the power supply module comprises one or more of a charger, a rechargeable lithium battery, a photovoltaic panel and a storage battery for powering the monitoring sensors and the terminal units.
8. The NB-IoT-based intelligent bridge health monitoring system as claimed in claim 1, wherein the cloud server is connected to a big data platform, and the big data platform analyzes massive monitoring data collected by each monitoring point of the structure and provides an analysis result.
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| CN202010754435.0A CN111885192A (en) | 2020-07-30 | 2020-07-30 | Bridge health intelligent monitoring system based on NB-IoT |
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| CN202010754435.0A CN111885192A (en) | 2020-07-30 | 2020-07-30 | Bridge health intelligent monitoring system based on NB-IoT |
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| CN112461202A (en) * | 2020-11-24 | 2021-03-09 | 哈尔滨工业大学（深圳） | Building safety monitoring method based on narrow-band Internet of things and related products |
| CN113155196A (en) * | 2021-04-26 | 2021-07-23 | 南京邮电大学 | Bridge operation real-time monitoring system based on AIoT and monitoring method thereof |
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| CN114838894A (en) * | 2022-03-17 | 2022-08-02 | 浙江大学 | Bridge real-time monitoring and early warning device based on foldable friction nanotechnology |
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Application publication date: 20201103 |