A defect monitoring system for civil engineering structures

Abstract

A defect monitoring system for civil engineering structures is disclosed. The system includes a monitoring node, a communication network, and a management platform, wherein: the monitoring node is arranged on the civil engineering structure, and includes an inertial measurement unit and a node processor, and the node processor is configured to obtain sensor data of the inertial measurement unit and perform preliminary analysis based on the sensor data to obtain preliminary analysis results; the monitoring node is also configured to upload the preliminary analysis results to the management platform through the communication network; the management platform is configured to determine the local position state corresponding to the local area of ​​the civil engineering structure where the inertial measurement unit is located based on the preliminary analysis results. The system can monitor the local position state of the civil engineering structure in a timely and effective manner.

Description

Technical Field

[0001] The invention relates to the field of engineering maintenance, and in particular to a defect monitoring system for civil engineering structures. Background Art

[0002] With the rapid development of cities, people have designed and built a large number of roads, bridges and large buildings. However, after the construction of roads, bridges and buildings, the status monitoring and maintenance of roads, bridges and buildings usually rely on manual inspections or manual recognition and observation of monitoring images. This kind of status monitoring is inefficient and seriously delayed. Once a problem occurs but is not discovered in time, it is likely to cause serious consequences. Summary of the invention

[0003] A defect monitoring system for a civil engineering structure according to an embodiment of the present invention includes a monitoring node, a communication network, and a management platform, wherein: the monitoring node is arranged on the civil engineering structure, and includes an inertial measurement unit and a node processor, and the node processor is configured to obtain sensor data of the inertial measurement unit and perform preliminary analysis based on the sensor data to obtain preliminary analysis results; the monitoring node is also configured to upload the preliminary analysis results to the management platform through the communication network; the management platform is configured to determine the local position state corresponding to the local area of ​​the civil engineering structure where the inertial measurement unit is located based on the preliminary analysis results. BRIEF DESCRIPTION OF THE DRAWINGS

[0004] The present invention can be better understood from the following description of specific embodiments of the present invention in conjunction with the accompanying drawings, in which:

[0005] Figure 1 A schematic structural diagram of a defect monitoring system for a civil engineering structure according to an embodiment of the present invention is shown;

[0006] Figure 2 A schematic diagram of the structure of a monitoring node according to an embodiment of the present invention is shown;

[0007] Figure 3 A schematic diagram of the structure of a gateway according to an embodiment of the present invention is shown;

[0008] Figure 4 A structural schematic diagram of a specific defect monitoring system for civil engineering structures according to an embodiment of the present invention is shown. DETAILED DESCRIPTION

[0009] The features and exemplary embodiments of various aspects of the present invention will be described in detail below. In the detailed description below, many specific details are proposed to provide a comprehensive understanding of the present invention. However, it is obvious to those skilled in the art that the present invention can be implemented without the need for some of these specific details. The following description of the embodiments is only to provide a better understanding of the present invention by illustrating examples of the present invention. The present invention is by no means limited to any specific configuration and algorithm proposed below, but covers any modification, replacement and improvement of elements, parts and algorithms without departing from the spirit of the present invention. In the accompanying drawings and the following description, known structures and technologies are not shown to avoid unnecessary ambiguity to the present invention.

[0010] Considering that the state monitoring that relies on manual work is inefficient and seriously delayed, the embodiment of the present application proposes a defect monitoring system for civil engineering structures, in which the monitoring node can automatically obtain the sensor data of the inertial measurement device, and the sensor data is used to characterize the local position state of the local area of ​​the civil engineering structure. The management platform obtains the sensor data uploaded by each monitoring node through the communication network and analyzes and determines the local position state. The monitoring process is automatic and does not require manual participation. The monitoring efficiency is high, and the local position state of the local area of ​​the civil engineering structure can be monitored in a timely and effective manner, reducing the possibility of structural problems occurring but not being discovered in time, and improving the reliability and safety of the civil engineering structure.

[0011] Figure 1 FIG. 1 is a schematic diagram showing a structural diagram of a defect monitoring system for a civil engineering structure according to an embodiment of the present invention. Figure 1 In the defect monitoring system 100 of the civil engineering structure shown, the defect monitoring system 100 includes a plurality of monitoring nodes 101, a communication network 102, and a management platform 103. The monitoring node 101 is arranged on the civil engineering structure, and includes an inertial measurement unit and a node processor. The sensor data of the inertial measurement unit reflects the state information of the position and posture of the inertial measurement unit. The inertial measurement unit is arranged on the civil engineering structure, so the sensor data will characterize the state information of the local area of ​​the civil engineering structure where the inertial measurement unit is located. The inertial measurement unit and the node processor are connected by wire through a peripheral circuit. The inertial measurement unit sends the sensor data to the node processor in the form of an electrical signal. The node processor receives the sensor data and performs a preliminary analysis on the sensor data to obtain a preliminary analysis result. The monitoring node 101 uploads the preliminary analysis result to the management platform 103 through the communication network 102. The management platform 103 determines the local position state of the local area of ​​the civil engineering structure where the inertial measurement unit corresponding to the preliminary analysis result is located based on the received preliminary analysis result.

[0012] In this embodiment, the civil engineering structure refers to an engineering structure whose position state should meet the expected standard requirements. Under the influence of environmental factors such as climate change, terrain change, and soil erosion, the position state of the engineering structure may change. In this embodiment, a defect monitoring system is used to monitor the local position state of each local area of ​​the civil engineering structure to analyze whether the actual position state meets the expected standard requirements. In this embodiment, the civil engineering structure includes but is not limited to transportation infrastructure and various types of buildings. Transportation infrastructure refers to various infrastructures serving transportation activities, including but not limited to roads, bridges, tunnels, railways, urban rail transit, stations, airports, ports, parking lots, etc. Buildings refer to buildings with complex structural designs, large footprints, or buildings that need to be focused on for functionality or safety considerations, such as high-rise buildings, stadiums, airports, dams, etc.

[0013] In this embodiment, the defect monitoring system 100 includes one or more monitoring nodes 101, which are arranged on the civil engineering structure and include an inertial measurement unit and a node processor. Each monitoring node 101 includes at least one inertial measurement unit (IMU), and each inertial measurement unit can be arranged on the main structure of the civil engineering structure or in the peripheral area of ​​the civil engineering structure. The specific location can be set according to the specific engineering elements and structural monitoring direction of the civil engineering structure, and is usually arranged in the key area of ​​the civil engineering structure that needs to be focused on. The sensor data output by the inertial measurement unit is used to characterize the local position state of the local area of ​​the civil engineering structure where the inertial measurement unit is located. The inertial measurement unit includes at least one inertial sensor of an accelerometer, a gyroscope and a magnetometer, and the corresponding sensor data includes at least one inertial information of acceleration, angular velocity and magnetic field. In some embodiments, the inertial measurement unit can be implemented by a multi-axis accelerometer.

[0014] In this embodiment, the node processor in the monitoring node 101 is configured to obtain sensor data of all inertial measurement units in the monitoring node, perform preliminary analysis on the sensor data to obtain preliminary analysis results, and upload the preliminary analysis results to the management platform 103 through the communication network 102. The preliminary analysis includes analyzing whether the received sensor data exceeds the corresponding preset data interval. For any sensor data, if it exceeds the corresponding preset data interval, the preliminary analysis result is a data abnormality result, and if it does not exceed the corresponding preset data interval, the preliminary analysis result is a data normal result. The specific value of the preset data interval is determined based on the type of sensor data and the position of the inertial measurement unit in the civil engineering structure, and can also be corrected according to the actual situation and the historical data corresponding to the local area.

[0015] In this embodiment, the management platform 103 can be implemented by means of a server or other cloud platform. In this embodiment, the management platform 103 obtains the preliminary analysis results uploaded by each monitoring node 101 through the communication network 102, and determines the corresponding local location state based on the preliminary analysis results. The management platform 103 determines the local location state based on the preliminary analysis results. The specific local location state is divided into abnormal state and normal state according to whether there is an abnormality. The management platform 103 executes the alarm strategy when the received local location state is in an abnormal state. When the received local location state does not have an abnormal state, that is, it is in a normal state, the alarm strategy will not be triggered.

[0016] In this embodiment, the alarm strategy includes notifying the person in charge through at least one of the display interface, email or text message, issuing an alarm instruction to the monitoring node so that the monitoring node executes the alarm action, etc. The specific method and detailed parameters of the alarm strategy can be pre-set. For example, the action of the alarm instruction issued to the monitoring node can be executed when the management platform receives the alarm action information sent by the person in charge after notifying the person in charge, or it can be directly executed when the management platform does not receive the alarm action information after the timeout, or it can be directly executed without the person in charge responding to the management platform. The specific settings can be adjusted according to the actual situation and user needs, and there is no limitation here.

[0017] In some embodiments, the management platform is further configured to: in the case where the received local position state has an abnormal state, determine the first alarm instruction and the first alarm range based on the abnormal state, and send the first alarm instruction to the monitoring node corresponding to the first alarm range through the communication network, so that the monitoring node of the first alarm range responds to the first alarm instruction to perform an alarm action. The alarm action performed by the monitoring node is used to remind the personnel in the corresponding local area that there are safety hazards in the current area. The alarm action includes controlling the warning light to emit light according to preset parameters, controlling the buzzer to sound according to preset parameters, controlling the warning screen to display alarm information, and controlling the sound to emit alarm audio. At least one of the first alarm range refers to the area where the monitoring node that receives the first alarm instruction and executes the alarm action is located. The first alarm range can be the local area corresponding to the abnormal state, or the local area corresponding to the abnormal state and part of the local area around the local area, or the area corresponding to the entire civil engineering structure, such as the entire bridge. The first alarm range and alarm action of the specific first alarm instruction can be set according to the actual situation of the civil engineering structure and user needs, and are not limited here.

[0018] In some specific embodiments, the monitoring node is further configured to: immediately upload the preliminary analysis results to the management platform when the preliminary analysis results include data abnormal results, and the data abnormal results indicate that the sensor data exceeds the corresponding preset data interval; when the preliminary analysis results do not include data abnormal results, the preliminary analysis results are regularly uploaded to the management platform according to the preset time period. The action of the monitoring node uploading the preliminary analysis results to the management platform includes two types: regular uploading and immediate uploading. Regular uploading is performed regularly according to the time period. When there is no data abnormal result in the preliminary analysis results, the sensor data, the power and signal strength of the monitoring node itself, and other self-status information can also be uploaded while uploading the preliminary analysis results. The management platform will reply to the monitoring node that the uploaded information has been received when receiving the uploaded information from the monitoring node, and analyze, update and store the data based on the uploaded information. If the management platform does not receive the preliminary analysis results of a certain monitoring node within a time limit, it is also considered that the corresponding local position state of the monitoring node is abnormal. The possible reasons include monitoring node failure, communication network failure, local area abnormality of civil engineering structure, etc., which require further manual investigation and confirmation, and the management platform executes the corresponding alarm strategy.

[0019] Immediate upload occurs in certain emergency situations, such as when a local area of ​​a civil engineering structure collapses, the inertial measurement unit moves away from its original position, and the sensor data changes significantly, causing the sensor data to exceed the corresponding preset data interval. At this time, the corresponding preliminary analysis results can be uploaded to the management platform immediately to ensure the timeliness of the information. Due to the importance and urgency of the abnormal data results, the monitoring node can resend the abnormal data results based on a higher frequency before receiving a response from the management platform to increase the success rate of the management platform receiving the abnormal data results; if the monitoring node's data abnormality result upload times out (the number of repeated uploads reaches the preset number of times or the upload time reaches the preset time, and no response from the management platform is received, it can be determined as an upload timeout), the monitoring node will no longer wait for the management platform's response, and will automatically generate a second alarm instruction and send it to the corresponding monitoring node through the communication network to trigger an alarm action, thereby ensuring that the alarm data is effectively responded to in the defect monitoring system. Therefore, in some embodiments, the monitoring node is further configured to: when the preliminary analysis results include data abnormality results and the upload of the preliminary analysis results times out, determine to generate a second alarm instruction and a second alarm range, and send the second alarm instruction to the monitoring node corresponding to the second alarm range through the communication network, so that the monitoring node in the second alarm range performs an alarm action in response to the second alarm instruction.

[0020] The second alarm range here is similar to the first alarm range. The monitoring nodes corresponding to the second alarm range at least include the monitoring nodes that generate the second alarm instruction. At this time, the monitoring node does not need a communication network and can directly obtain the second alarm instruction generated locally. If the preliminary analysis results include data abnormality results and are uploaded successfully immediately (i.e., a reply from the management platform is received and the upload has not timed out), the monitoring node will not generate the second alarm instruction on its own, but wait for the subsequent instructions from the management platform to be issued.

[0021] The local position state corresponding to the local area where each inertial measurement unit is located is obtained based on the preliminary analysis results. For civil engineering structures, the basis for determining the local position state can be set according to the specific engineering elements and structural monitoring directions of the civil engineering structure. For example, the specific engineering elements in the transportation infrastructure mainly include road structures such as roads, bridges, tunnels, railways, and urban rail transit. The structural monitoring direction is usually the collapse degree, vibration, and falling of the road structure. Therefore, the local position state can characterize whether there is an abnormality in at least one of the collapse degree, vibration, and falling of the road structure; for another example, the specific engineering elements in the building are relatively complex. In this embodiment, the engineering elements that need to be focused on can include at least one of the bottom foundation, the main supporting structure, and the peripheral elements of the building. At this time, the corresponding structural monitoring directions are the collapse degree of the bottom foundation, the tilt degree of the main supporting structure, the posture state of the peripheral elements, the vibration of each engineering element, and the falling condition. The corresponding local position state can characterize whether there is an abnormality in at least one of the collapse degree of the bottom foundation, the tilt degree of the main supporting structure, the posture state of the peripheral elements, the vibration of each engineering element, and the falling condition.

[0022] These specific collapse degrees, tilt degrees, and posture states can be determined through the received preliminary analysis results, or in combination with the received preliminary analysis results and sensor data. The preliminary analysis results and sensor data can come from different time points and / or different location points. Analyze whether the specific collapse degree, tilt degree, posture state, vibration, falling condition, etc. mentioned above meet the expected standard requirements. If they meet, it is normal, and if they do not meet, it is abnormal. The specific numerical range required by the expected standard can be set or modified according to the actual situation and the historical data corresponding to the local area.

[0023] The management platform 103 in this embodiment can also be used to obtain and display the power and status of each monitoring node 101 in real time, and can also be used to perform group management, classification management, equipment management, and project management on each monitoring node 101, and to implement the functions of issuing scheduled tasks to each monitoring node 103, issuing tasks uniformly with one click, and triggering alarm warning lights.

[0024] In this embodiment, the communication network 102 is used for communication between the communication nodes in the communication network 102, and the communication nodes include the monitoring node 101 and the management platform 103. The monitoring node 101 and the management platform 103 are both connected to the communication network 102 through their own communication units. The communication network 102 receives the preliminary analysis results sent by the communication unit of the monitoring node 101 and forwards them to the communication unit of the management platform 103. The management platform 103 can obtain the preliminary analysis results through its own communication unit. Among them, the communication network 102 can be a wired network connected by coaxial cables, twisted pairs or optical fibers, or a wireless network that can realize the interconnection of various communication devices without wiring, or a combination of a wired network and a wireless network. The wireless network can be implemented based on various wireless communication technologies such as Bluetooth, WiFi, ZigBee, cellular communication, etc. Among them, cellular communication achieves wide-area coverage with the existing cellular communication network. The cellular communication network is also called the mobile network. Common types of cellular communication networks include GSM network, CDMA network, 3G network, 4G network, 5G network, etc.; non-cellular communication wireless communication technology can be implemented based on mesh communication network. Mesh communication network is a network topology structure that can be shared with other communication protocols to provide redundancy, scalability, flexibility and wide coverage.

[0025] In this embodiment, the communication network 102 includes one or more gateways, and the gateway is configured to forward the communication information between the monitoring node 101 and the management platform 103. Therefore, the gateway can communicate with the communication unit of the monitoring node 101 on the one hand, and can communicate with the communication unit of the management platform 103 on the other hand. In some preferred embodiments, the communication between the gateway and the monitoring node 101 can use a non-cellular communication wireless network, and the communication between the gateway and the management platform 103 can use a cellular communication wireless network. Therefore, in some embodiments, the communication network 102 may include: a mesh communication network based on the monitoring node 101 and its corresponding gateway; a cellular communication network based on the gateway and the management platform 103.

[0026] The nodes in the mesh communication network include the communication unit and gateway of the monitoring node 101, and the nodes in the cellular communication network include the communication unit of the gateway and the management platform 103. The mesh communication network can realize self-organizing network, the monitoring nodes and gateways can quickly access the network for communication, the gateways can be added, subtracted and changed in position at will, and the mesh communication network can be further combined with other technical means, for example, the mesh communication network is a mesh communication network based on at least one of the SUB-1G frequency band and spread spectrum communication technology. The SUB-1G frequency band has the advantages of long transmission distance, low power consumption and strong anti-interference ability, which helps to reduce the number of relay nodes in the mesh communication network, reduce power, and improve stability and reliability; the spread spectrum communication technology allows multiple devices to communicate on the same frequency band, which can improve the communication capacity and efficiency of the mesh communication network. At the same time, the spread spectrum communication technology has strong anti-interference ability, which can improve the stability and reliability of the mesh communication network.

[0027] In this embodiment, the cellular communication network may adopt 4G communication technology, and may further be combined with Cat.1 technology.

[0028] Based on the defect monitoring system for civil engineering structures in this embodiment, the monitoring process is carried out automatically without the need for human intervention, and the monitoring efficiency is high. It can timely and effectively monitor the local position status of local areas of civil engineering structures, reduce the possibility of structural problems occurring but not being discovered in time, and improve the reliability and safety of civil engineering structures.

[0029] Figure 2A schematic diagram of the structure of a monitoring node 101 according to an embodiment of the present invention is shown, wherein the monitoring node 101 includes a power module, an information module and an alarm module, wherein the power module is used to power the information module and the alarm module, the power module may include a solar panel, a lithium battery, a battery management unit and a voltage stabilizing circuit, the solar panel is used to convert light energy into electrical energy, the battery management unit is used to store the electrical energy converted by the solar panel into the lithium battery, control the voltage stabilizing circuit to output the electrical energy converted by the solar panel, and control the voltage stabilizing circuit to output the electrical energy of the lithium battery, and the battery management unit can also be used to detect abnormalities in the electrical energy output; the information module includes two inertial measurement units, a node processor and a communication unit, the inertial measurement units are respectively a main inertial measurement unit and a backup inertial measurement unit, the node processor is used to obtain sensor data of the main inertial measurement unit, the base The sensor data is preliminarily analyzed to obtain a preliminarily analysis result and uploaded to the management platform through the communication unit. The node processor is also used to generate a second alarm instruction and a second alarm range when the data abnormal result upload times out, and send the second alarm instruction to the monitoring node corresponding to the second alarm range through the communication network. It is also used to trigger the alarm module to perform an alarm action when receiving the first alarm instruction or the second alarm instruction. The backup inertial measurement unit is a backup of the main inertial measurement unit. Once the main inertial measurement unit fails, the backup inertial measurement unit replaces the main inertial measurement unit to work, so that the node processor receives the sensor data of the current main inertial measurement unit. The communication unit is used to add the monitoring node to the communication network. The communication unit in this embodiment can be implemented by a mesh communication unit to add the monitoring node to the mesh communication network. Figure 2 The antenna in the communication unit is an accessory; the alarm module is used to execute the alarm action when it is triggered by the node processor. Figure 2 The alarm module in the example includes a warning light and a warning screen.

[0030] Figure 3 A schematic structural diagram of a gateway 300 according to an embodiment of the present invention is shown. Figure 3 It is a gateway that reuses monitoring nodes, that is, the functions of monitoring nodes are configured in the gateway. Compared with a single monitoring node, Figure 3 A cellular communication unit is added to the gateway 300, and the cellular communication unit is used to join the gateway to the cellular communication network. Specifically, Figure 3The gateway in the invention comprises a power module and an information module, and the gateway may also comprise an alarm module, wherein the power module and the alarm module have the same functions as those in the monitoring node. The gateway is provided with two information modules, namely a main information module and a backup information module, and each information module comprises a mesh communication unit, a cellular communication unit, a node processor, and an inertial measurement unit. The mesh communication unit receives the preliminary analysis results of the local node processor and the preliminary analysis results of other monitoring nodes in the communication network and forwards them to the cellular communication unit. The antenna is an attachment of the mesh communication unit or the cellular communication unit. The cellular communication unit uploads the received preliminary analysis results to the management platform through the cellular communication network. The node processor is used to receive sensor data and preliminarily analyze the sensor data to obtain preliminary analysis results, and is also used to detect whether another information module is abnormal. If the node processor of the backup information module detects that the main information module is abnormal, the backup information module replaces the main information module to work.

[0031] based on Figure 2 Monitoring nodes and Figure 3 The schematic diagram of the structure of the gateway in the figure shows that based on the power module and the communication module, the monitoring nodes and gateways of this embodiment can be charged by solar energy and hibernate with low power consumption to achieve ultra-long battery life, while ensuring wake-up in the air and communication at any time. Figure 2 The main inertial measurement unit and the backup inertial measurement unit in Figure 3 The main information module and backup information module are both main and backup redundancy schemes set up considering the stability and reliability of the equipment. The specific implementation details can be set and adjusted according to actual conditions and user needs.

[0032] Based on the characteristics of mesh communication networks, each node can act as a forwarding node to transmit data from one node to another, thus allowing any nodes in the mesh communication network to communicate with each other without central control. Figure 4 FIG. 4 is a schematic diagram showing a structural diagram of a specific defect monitoring system 400 for a civil engineering structure according to an embodiment of the present invention. In a specific embodiment, Figure 4Take the civil engineering structure as a road bridge as an example, wherein gateway 1 and gateway 2 are arranged at the two end ports of the road bridge, and the monitoring nodes are dispersedly installed between gateway 1 and gateway 2 at a fixed interval. The communication network includes a mesh communication network and a cellular communication network. The mesh communication network is implemented based on all monitoring nodes and gateways, and the cellular communication network is implemented based on gateways and management platforms. Among them, multiple forwarding nodes are arranged in all monitoring nodes. In addition to the original function of the monitoring node, the forwarding node is further configured with a data forwarding function. Each forwarding node assumes the router forwarding function in the entire mesh communication network. The forwarding node can receive the preliminary analysis results sent by each monitoring node and the adjacent forwarding node, and pass it to the adjacent forwarding node or gateway. Finally, the preliminary analysis results of all monitoring nodes are forwarded to gateway 1 or gateway 2, and gateway 1 or gateway 2 is uploaded to the management platform through the cellular communication network. Through the path in the communication network that is opposite to the upload path of the preliminary analysis results, the management platform can send the first alarm instruction mentioned above to the corresponding monitoring node. At the same time, each monitoring node can also transmit information to each other through the mesh communication network in order to receive the second alarm instruction mentioned above. The positions and forwarding relationships of the monitoring nodes, forwarding nodes and gateways are set in accordance with the principle that the signal strength meets the forwarding requirements but does not cause repeated large-scale forwarding due to over-dense locations. The specific settings can be made according to the actual situation of the civil engineering structure and are not restricted here.

[0033] In some embodiments, the defect monitoring system further includes: a control terminal configured to obtain node basic information of the monitoring node and send the node basic information to the management platform, and receive node configuration information sent by the management platform and send the node configuration information to the monitoring node, wherein the management platform is further configured to allocate node configuration information to the monitoring node based on the node basic information, and the monitoring node is further configured to communicate with the management platform through the communication network based on the node configuration information. Before the defect monitoring system of this embodiment works, the monitoring node is configured through the control terminal, that is, the node configuration information required for communication based on the communication network is allocated to the monitoring node, so that the monitoring node and the management platform can communicate through the communication network.

[0034] The control terminal is a network access terminal that can communicate with the monitoring node and the management platform respectively. The terminal is usually a mobile terminal or a handheld terminal, such as a smart phone, tablet computer, laptop computer or other device terminal. The control terminal obtains the basic node information of the monitoring node and transmits it to the management platform, so that the management platform allocates the corresponding node configuration information according to the basic node information. The node configuration information can support the monitoring node to communicate through the communication network.

[0035] The basic node information of the monitoring node includes the device serial number, device location, device type and other information, and the node configuration information includes the globally unique network address and network parameters.

[0036] Information transmission can be achieved between the control terminal and the management platform via a cellular communication network or other communication networks. In some specific embodiments, the control terminal is further configured to: upload node basic information to the management platform via the cellular communication network; and receive node configuration information via the cellular communication network.

[0037] In some embodiments, the control terminal is further configured to: obtain the basic node information of the monitoring node by at least one of the following methods: communicating with the monitoring node through the mesh communication network, scanning the device QR code of the monitoring node, and receiving at least one of the input information instructions of the corresponding monitoring node. The control terminal can obtain the information of the monitoring node by scanning the identification QR code of the monitoring node, communicating with the monitoring node through the mesh communication network, and receiving at least one of the input information instructions manually input by the management personnel. The control terminal can send information to the monitoring node through the mesh communication network. The control terminal can send the node configuration information to the monitoring node through the mesh communication network.

[0038] In some specific embodiments, the control terminal is further configured to obtain gateway basic information of a gateway in the communication network and send the gateway basic information to a management platform, and to receive gateway configuration information sent by the management platform and send the gateway basic information to the gateway, wherein the management platform is further configured to allocate gateway configuration information to the gateway based on the gateway basic information; the gateway is further configured to communicate with the management platform or the monitoring node through the communication network based on the gateway configuration information.

[0039] The process of configuring a gateway is similar to that of configuring a monitoring node. In the process of configuring the communication network of the defect monitoring system, the gateway is configured first, and then the monitoring node is configured. If a gateway reuses a monitoring node, the gateway only needs to be configured once.

[0040] The monitoring nodes, management platform, gateway, and control terminal involved in this embodiment can all be implemented based on a combination of computer-readable media and related hardware devices.

[0041] It should be noted that the computer-readable medium according to the embodiment of the present invention may be a computer-readable signal medium or a computer-readable storage medium or any combination of the above two. The computer-readable storage medium may be, for example, but not limited to, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, device, or device, or any combination of the above. More specific examples of computer-readable storage media may include, but are not limited to: an electrical connection with one or more wires, a portable computer disk, 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 disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the above. The computer-readable storage medium according to the embodiment of the present invention may be any tangible medium containing or storing a program, which may be used by or in combination with an instruction execution system, device, or device. In addition, the computer-readable signal medium according to the embodiment of the present invention may include a data signal propagated in a baseband or as part of a carrier wave, in which a computer-readable program code is carried. This propagated data signal may take a variety of forms, including but not limited to electromagnetic signals, optical signals, or any suitable combination of the above. The computer readable signal medium may also be any computer readable medium other than a computer readable storage medium, which may send, propagate, or transmit a program for use by or in conjunction with an instruction execution system, apparatus, or device. The program code contained on the computer readable medium may be transmitted using any appropriate medium, including but not limited to: wires, optical cables, RF (Radio Frequency), etc., or any suitable combination of the above.

[0042] Computer program code for performing operations according to embodiments of the present invention may be written in one or more programming languages ​​or a combination thereof, including object-oriented programming languages, such as Java, Smalltalk, C++, and conventional procedural programming languages, such as "C" language or similar programming languages. The program code may be executed entirely on a user's computer, partially on a user's computer, as an independent software package, partially on a user's computer, partially on a remote computer, or entirely on a remote computer or server. In the case of a remote computer, the remote computer may be connected to the user's computer via any type of network, including a local area network (LAN) or a wide area network (WAN), or may be connected to an external computer (e.g., using an Internet service provider to connect via the Internet).

[0043] The present invention can be implemented in other specific forms without departing from its spirit and essential features. For example, the algorithms described in the specific embodiments can be modified, and the system architecture does not depart from the basic spirit of the present invention. Therefore, the current embodiments are regarded as exemplary and non-restrictive in all aspects, and the scope of the present invention is defined by the appended claims rather than the above description, and all changes falling within the meaning and equivalent scope of the claims are thus included in the scope of the present invention.

Claims

1. A defect monitoring system for civil engineering structures, comprising monitoring nodes, a communication network, and a management platform, wherein: The monitoring node is arranged on the civil engineering structure, and includes an inertial measurement unit and a node processor, wherein the node processor is configured to obtain sensor data of the inertial measurement unit and perform preliminary analysis based on the sensor data to obtain preliminary analysis results; The monitoring node is further configured to upload the preliminary analysis result to the management platform via the communication network; The management platform is configured to determine, based on the preliminary analysis result, a local position state corresponding to a local area of ​​the civil engineering structure where the inertial measurement unit is located.

2. The defect monitoring system according to claim 1, wherein the management platform is further configured to: In the event that an abnormal state exists in the local position state, a first alarm instruction and a first alarm range are determined based on the abnormal state, and the first alarm instruction is sent to a monitoring node corresponding to the first alarm range through the communication network, so that the monitoring node of the first alarm range performs an alarm action in response to the first alarm instruction.

3. The defect monitoring system according to claim 1, wherein the monitoring node is further configured to: In the case where the preliminary analysis result includes a data abnormality result, immediately uploading the preliminary analysis result to the management platform, the data abnormality result indicating that the sensor data exceeds a corresponding preset data interval; In the case that the preliminary analysis result does not include the abnormal data result, the preliminary analysis result is regularly uploaded to the management platform according to a preset time period.

4. The defect monitoring system according to claim 3, wherein the monitoring node is further configured to: When the preliminary analysis result includes the data abnormality result and the upload of the preliminary analysis result times out, a second alarm instruction and a second alarm range are determined, and the second alarm instruction is sent to the monitoring node corresponding to the second alarm range through the communication network, so that the monitoring node of the second alarm range performs an alarm action in response to the second alarm instruction.

5. The defect monitoring system according to claim 1, wherein the communication network comprises: A mesh communication network based on the monitoring nodes and their corresponding gateways; as well as A cellular communication network based on the gateway and the management platform.

6. The defect monitoring system according to claim 5, wherein the mesh communication network is a mesh communication network based on at least one of SUB-1G frequency band and spread spectrum communication technology.

7. The defect monitoring system according to any one of claims 1 to 6, further comprising: a control terminal configured to obtain basic node information of the monitoring node and send the basic node information to the management platform, and receiving node configuration information sent by the management platform and sending the node configuration information to the monitoring node, wherein The management platform is further configured to allocate the node configuration information to the monitoring node based on the node basic information. The monitoring node is further configured to communicate with the management platform through the communication network based on the node configuration information.

8. The defect monitoring system according to claim 7, wherein the control terminal is further configured to: Uploading the node basic information to the management platform via a cellular communication network; and The node configuration information is received via the cellular communication network.

9. The defect monitoring system according to claim 7, wherein the control terminal is further configured to: The node basic information of the monitoring node is obtained by at least one of the following methods: communicating with the monitoring node through a mesh communication network, scanning a device QR code of the monitoring node, and receiving an input information instruction corresponding to the monitoring node.

10. The defect monitoring system according to claim 7, wherein the control terminal is further configured to: obtain gateway basic information of a gateway in the communication network and send the gateway basic information to the management platform, and receive gateway configuration information sent by the management platform and send the gateway basic information to the gateway, wherein The management platform is further configured to allocate the gateway configuration information to the gateway based on the gateway basic information; The gateway is further configured to communicate with the management platform or the monitoring node through the communication network based on the gateway configuration information.

Images