Monitoring device and monitoring system

Abstract

The utility model provides a monitoring device and a monitoring system. The monitoring device comprises a first sensor unit which is installed at a cantilever assembly point, a stand column and a main beam midspan of a steel box beam and collects a first electric signal; the second sensor unit is mounted at a cantilever assembly point of the steel box girder and is used for acquiring a second electric signal; the first collection box comprises a microprocessor and a first collector, and the first collector converts the first electric signal into a first digital signal and sends the first digital signal to the microprocessor to form first monitoring data; the second collection box comprises a programmable logic controller and a second collector, the second collector converts the second electric signal into a second digital signal, and the programmable logic controller sends the second digital signal; and the third acquisition box comprises an industrial personal computer, and the industrial personal computer converts the second digital signal into second monitoring data. According to the monitoring device provided by the utility model, different types of monitoring data are acquired according to different mounting positions of the sensor units, so that the structure stability problem during the construction of the steel box girder can be found.

Description

Technical Field

[0001] The present application relates to the technical field of bridge construction monitoring, and in particular to a monitoring device and a monitoring system. Background Art

[0002] Currently, urban traffic is congested and land is scarce. Viaduct reconstruction projects are often located on major thoroughfares that share the same alignment with subway tunnels, pipelines, and other routes. Because subway stations exist below intersections, the placement of pile foundations and columns is limited, and large-span, variable-width steel box girders are often used for viaduct reconstruction.

[0003] During the hoisting construction, it will be subject to multiple tests such as the narrow construction area, subway protection pressure, subway operation vibration and the complex installation process of the steel box girder itself. The status of the steel box girder needs to be monitored in real time to ensure the safety and quality of the construction.

[0004] Therefore, it is necessary to develop a monitoring device to collect multi-source monitoring data in real time to monitor the impact of various factors on steel box girder construction. Summary of the Invention

[0005] In order to solve the problem of collecting multi-source monitoring data of steel box girders, the utility model provides a monitoring device and a monitoring system. The specific technical solutions are as follows:

[0006] The utility model provides a monitoring device, comprising:

[0007] The first sensor unit is installed at the cantilever assembly point, column, and main beam mid-span of the steel box girder, and is used to collect the first electrical signal; the second sensor unit is installed at the cantilever assembly point of the steel box girder, and is used to collect the second electrical signal; the first collection box includes a microprocessor and a first collector, and the first collector converts the first electrical signal into a first digital signal and sends it to the microprocessor to form the first monitoring data; the second collection box includes a programmable logic controller and a second collector, and the second collector converts the second electrical signal into a second digital signal, and the programmable logic controller sends the second digital signal; the third collection box includes an industrial computer, which receives the second digital signal, and the industrial computer converts the second digital signal into the second monitoring data.

[0008] Specifically, the monitoring device provided by the present invention selects the location for installing the sensor through the first sensor unit and the second sensor unit according to the needs of different sensor units to collect monitoring electrical signals, so that the sensor unit can collect monitoring electrical signals about different positions and different situations of the steel box girder. The collection box can realize the formation of monitoring data of the monitoring electrical signals of different factors, namely the first monitoring data and the second monitoring data.

[0009] Furthermore, the third collection box also includes a first serial port communication module and / or a first near-field communication module; the second collection box also includes a second near-field communication module, which is connected to the programmable logic controller and is used to establish a serial port and / or near-field communication connection with the third collection box.

[0010] Specifically, the second collection box and the third collection box provided by the present invention establish a communication connection through a near field communication module, so as to send the second digital signal of the second collection box to the third collection box.

[0011] Furthermore, the first collection box also includes a first Internet of Things module, which is connected to the microprocessor and is used to upload the first monitoring data to the server monitoring; the third collection box also includes a second Internet of Things module, which is connected to the industrial computer and is used to upload the second monitoring data to the server monitoring.

[0012] Specifically, the first collection box and the second collection box provided by the present invention upload the monitoring data to the server for monitoring through the Internet of Things module.

[0013] Furthermore, the first sensor unit includes a dynamic strain sensor, a static strain sensor, a tilt sensor, a temperature sensor, and a wind speed sensor; the second sensor unit is connected to the wiring terminal of the second collector; the second sensor unit includes an acceleration sensor and a binocular camera; the first sensor unit is connected to the wiring terminal of the first collector.

[0014] Specifically, the monitoring device proposed in the present invention includes different sensor units with different specific sensors, which can collect dynamic response signals about the structural factors and environmental factors of the steel box girder, and help to timely discover structural stability problems during the construction of the steel box girder. In addition, different sensors are integrated into the corresponding collector to facilitate the centralized management and analysis of monitoring data.

[0015] Furthermore, the first collection box also includes a first power management module, which is connected to any one or all modules among the first collector, the microprocessor, and the first Internet of Things module, and is used to power the first collector, the microprocessor, and any one or all modules among the first Internet of Things module; the second collection box also includes a second power management module, which is connected to any one or all modules among the second collector, the programmable logic controller, and the second near-field communication module, and is used to power any one or all modules among the second collector, the programmable logic controller, and the second near-field communication module.

[0016] Specifically, the power management module provided by the present invention can provide power to one or more modules in the first collection box and the third collection box.

[0017] The present invention also provides another monitoring device, comprising:

[0018] The first sensor unit is installed at the cantilever assembly point, column, and main beam mid-span of the steel box girder, and is used to collect the first electrical signal; the second sensor unit is installed at the cantilever assembly point of the steel box girder, and is used to collect the second electrical signal; the first collection box includes a microprocessor and a first collector, and the first collector converts the first electrical signal into a first digital signal and sends it to the microprocessor to form the first monitoring data; the second collection box includes a second collector and an edge control unit, and the second collector converts the second electrical signal into a second digital signal and sends it to the edge control unit to form the second monitoring data.

[0019] Specifically, the monitoring device provided by the present invention collects different types of monitoring data, namely, first monitoring data and second monitoring data, through the first collection box and the second collection box.

[0020] Furthermore, the first collection box also includes a first Internet of Things module, which is connected to the microprocessor and is used to upload the first monitoring data to the server monitoring; the second collection box also includes a second Internet of Things module, which is connected to the edge control unit and is used to upload the second monitoring data to the server monitoring.

[0021] Furthermore, the first collection box also includes a first power management module, which is connected to the first collector, the microprocessor, and any one or all modules of the first Internet of Things module, and is used to power the first collector, the microprocessor, and any one or all modules of the first Internet of Things module; the second collection box also includes a second power management module, which is connected to the second collector, the edge control unit, and any one or all modules of the second Internet of Things module, and is used to power the second collector, the edge control unit, and any one or all modules of the second Internet of Things module.

[0022] The present invention also provides a monitoring system, using any one of the above monitoring devices, comprising:

[0023] The monitoring device is connected to the server and is used to collect the first monitoring data and the second monitoring data; the server receives and monitors the first monitoring data and the second monitoring data.

[0024] Furthermore, it also includes: a terminal device connected to the server, and used to display the first monitoring data and the second monitoring data.

[0025] Through the monitoring device and monitoring system provided by the utility model, the location for installing the sensor is selected according to the needs of different sensor units to collect monitoring electrical signals, so that the sensor unit can collect monitoring electrical signals about the steel box girder's own structure or nearby environmental factors. The collection box converts the monitoring electrical signals of different factors into monitoring data, which helps to timely discover structural and status problems when hoisting the steel box girder. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0027] Figure 1 This is a structural diagram of an embodiment of a monitoring device of the present utility model;

[0028] Figure 2 It is the installation position of a sensor of a monitoring device of the utility model;

[0029] Figure 3 It is the installation position of another sensor of a monitoring device of the utility model;

[0030] Figure 4 It is the installation position of another sensor of a monitoring device of the utility model;

[0031] Figure 5 It is the installation position of another sensor of a monitoring device of the utility model;

[0032] Figure 6 This is a schematic structural diagram of another embodiment of a monitoring device of the present utility model;

[0033] Figure 7 This is a circuit diagram of a second acquisition box of an embodiment of a monitoring device of the present utility model;

[0034] Figure 8 This is a schematic structural diagram of another embodiment of a monitoring device of the present utility model;

[0035] Figure 9 This is a structural diagram of an embodiment of a monitoring system of the present utility model;

[0036] Reference numerals: acceleration sensor-10, binocular camera-20, dynamic strain sensor-30, static strain sensor-40, tilt sensor-50, temperature sensor-60, wind speed sensor-70. DETAILED DESCRIPTION

[0037] In the following description, specific details such as specific system structures and technologies are provided for illustration rather than limitation to facilitate a thorough understanding of the embodiments of the present application. However, it should be clear to those skilled in the art that the present application may be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits, and methods are omitted to avoid obstructing the description of the present application with unnecessary details.

[0038] It will be understood that when used in this specification and the appended claims, the term "comprising" indicates the presence of the described features, integers, steps, operations, elements and / or components, but does not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or collections.

[0039] It should be further understood that the term "and / or" used in this specification and the appended claims refers to and includes any and all possible combinations of one or more of the associated listed items.

[0040] In addition, in the description of the present application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0041] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the specific embodiments of the present invention will be described below with reference to the accompanying drawings. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings and other embodiments can be obtained based on these drawings without inventive work.

[0042] In urban areas with congested traffic and limited land, viaduct reconstruction often needs to be carried out within limited spaces, co-aligned with subway tunnels, pipelines, and other infrastructure. Furthermore, the presence of a subway station beneath an intersection can restrict the placement of pile foundations and columns. In such cases, viaduct reconstruction often utilizes long-span, variable-width steel box girders to maintain traffic continuity and minimize disruption to existing traffic.

[0043] Steel box girders, also known as steel plate box girders, are a common structural form for long-span bridges. They are generally used on bridges with large spans and are so-called steel box girders because of their box-like appearance. Due to their large size, real-time monitoring of their structure and condition is essential during construction to aid on-site decision-making and ensure construction safety and quality.

[0044] Therefore, the utility model proposes a monitoring device, in which the sensor unit selects the location for installing the sensor according to the needs of different sensors to collect monitoring electrical signals, so that the sensor unit can collect monitoring electrical signals about changes in the steel box girder structure or changes in nearby environmental factors. The collection box converts the monitoring electrical signals of different factors into monitoring data, which helps to timely discover structural stability problems during the construction of the steel box girder.

[0045] The present invention proposes that the number of collection boxes in the monitoring device can be three, two or one. If there are three collection boxes, the first collection box is responsible for monitoring conventional monitoring items (such as dynamic strain, static strain, temperature and other monitoring items that do not require calculation), and the second collection box and the third collection box are combined to monitor monitoring items with edge computing requirements (such as acceleration, video and other monitoring items that require calculation), wherein the second collector acts as a lower computer to collect electrical signals to form digital signals, and the third collector acts as a higher computer to form monitoring data from digital signals; if there are two collection boxes, the first collection box is responsible for monitoring conventional monitoring items, and the second collection box is responsible for monitoring monitoring items with edge computing requirements; if there is only one collection box, only one collection box is needed to meet the unified monitoring of conventional monitoring items and monitoring items with edge computing requirements.

[0046] The monitoring device and monitoring system proposed by the utility model can realize real-time monitoring, alarm triggering and display of monitoring data of various sensors distributed in different positions during on-site construction of steel box girders, thereby improving the safety and reliability of steel box girder installation.

[0047] An embodiment of the present invention now describes a monitoring device having three collection boxes. The first collection box is responsible for forming the first monitoring data, and the second collection box and the third collection box are jointly responsible for forming the second monitoring data. Please refer to Figure 1 The present invention provides a monitoring device 100 , which includes a first sensor unit 110 , a second sensor unit 120 , a first collection box 130 , a second collection box 140 , and a third collection box 150 .

[0048] The first sensor unit 110 is installed at the steel box girder arm assembly point, column, and main beam mid-span to collect the first electrical signal; the second sensor unit 120 is installed at the cantilever assembly point of the steel box girder to collect the second electrical signal.

[0049] The first collection box 130 includes a microprocessor 131 and a first collector 132 . The first collector 132 converts the first electrical signal into a first digital signal and sends the first digital signal to the microprocessor 131 to form first monitoring data.

[0050] The second acquisition box 140 includes a programmable logic controller 141 and a second collector 142 . The second collector 142 converts the second electrical signal into a second digital signal, and the programmable logic controller 141 sends the second digital signal.

[0051] The third collection box 150 includes an industrial computer 151 , which receives the second digital signal. The industrial computer 151 converts the second digital signal into second monitoring data.

[0052] Specifically, in the monitoring device of the steel box girder, the arrangement of sensors is crucial to ensuring structural safety and performance monitoring. The linear and node deformations of the bridge in each construction section are inconsistent, and the installation point of the sensor needs to be determined based on the structural deformation relationship and the most unfavorable stress position.

[0053] The first sensor unit 110 includes a dynamic strain sensor 30, a static strain sensor 40, a tilt sensor 50, a temperature sensor 60, and a wind speed sensor 70. That is, the first sensor unit 110 can be used to monitor conventional monitoring items. Figure 2 As shown, the dynamic strain sensor 30 is specifically installed in the middle of the lower flange of each steel box girder, which helps to monitor the dynamic response of the structure under load during construction; Figure 3 As shown, the static strain sensor 40 is specifically installed on the outer side of the middle of the two columns, which helps to monitor the stability of the steel box girder structure; Figure 3 As shown, the tilt sensor 50 is specifically installed in the middle of the cap beam of the steel box beam, which helps to monitor the verticality and tilt of the structure and the impact on the construction of the steel box beam; Figure 4 As shown, the temperature sensors 60 are installed at the upper and lower flange corners of the steel box beams on both sides, which helps to monitor the impact of temperature in the environmental factors on the structural performance of the steel box beams; Figure 3 As shown, wind speed sensors 70 are installed on the bridge deck at the column position to help monitor the impact of wind on the construction of the steel box girder.

[0054] The second sensor unit 120 includes an acceleration sensor 10 and a binocular camera 20, that is, the second sensor unit 120 can be used for monitoring projects with edge computing requirements. Figure 2 As shown, the acceleration sensor 10 is installed in the middle of the lower flange of the middle box girder, which helps to monitor the vibration level during the construction process and evaluate whether the construction activities have an impact on the safety of the steel box girder structure; Figure 5 As shown in the figure, the binocular camera is installed on the ground opposite the cantilever section, which helps to observe the jacking position and alignment mark of the steel box girder and provide intuitive visual feedback to the construction workers.

[0055] Collecting monitoring data from different sensors can meet different needs. For example, combining monitoring data collected by a binocular camera and a tilt sensor can be used to monitor assembly errors and assist in fine-tuning on-site hoisting construction. Furthermore, the sensor acquisition frequency can be adjusted individually to suit actual monitoring requirements. For example, if more detailed capture of the dynamic response of a steel box girder under traffic or wind loads is required, the data acquisition frequency can be appropriately increased. Conversely, if monitoring slower processes such as deformation or crack changes in the steel box girder, the acquisition frequency can be appropriately reduced to reduce data volume and save storage space.

[0056] The sensors of the first sensor unit 110 are connected to the terminals of the first collector 132. The electrical signals collected by the sensors in the first sensor unit 110 are transmitted to the first collector 132 via the terminals. The first collector 132 may include an analog-to-digital converter (ADC) to convert the continuous analog electrical signals into discrete digital signals. The microprocessor 131, which may be a single-chip microcomputer, receives the digital signals from the first collector 132 and generates the first monitoring data.

[0057] Each sensor of the second sensor unit 120 is connected to the terminal block of the second collector 142, and the electrical signals collected by each sensor in the second sensor unit 120 are sent to the second collector 142 through the terminal block. The second collection box (i.e., the lower computer) 140 can be for data collection of monitoring projects with edge computing requirements, and there can be multiple second collection boxes for data collection. The second collector 142 may include an analog-to-digital converter (ADC), and then the continuous analog electrical signal is converted into a discrete digital signal through the analog-to-digital converter. In order to adapt to higher frequency monitoring data, the second digital signal is sent to the third collection box 150 through the programmable logic controller 141.

[0058] The third collection box (ie, the host computer) 150 generates second monitoring data through the industrial computer 151 based on the second digital signal collected by the second collection box 140 .

[0059] Through the monitoring device provided by the present invention, different sensor units select the locations for installing sensors according to the needs of different sensors to collect monitoring electrical signals, so that the sensor units can collect monitoring electrical signals about changes in the steel box girder structure or changes in nearby environmental factors. The collection box converts the monitoring electrical signals of different factors into monitoring data, which helps to promptly discover structural stability problems during steel box girder construction.

[0060] An embodiment of the present invention, based on the above embodiment, please refer to Figure 6The first collection box 130 also includes a first Internet of Things module 133 , the second collection box 140 also includes a second near-field communication module 143 , and the third collection box 150 also includes a first serial port communication module 152 , a first near-field communication module 153 and a second Internet of Things module 154 .

[0061] The first collection box 130 further includes a first Internet of Things module 133 connected to the microprocessor 131 and configured to upload the first monitoring data to the server for monitoring.

[0062] The second collection box 140 further includes a second near-field communication module 143 connected to the programmable logic controller 141 and configured to establish a serial port and / or near-field communication connection with the third collection box 150 .

[0063] The third collection box 150 also includes a first serial communication module 152 and / or a first near-field communication module 153 and a second Internet of Things module 154 ; the second Internet of Things module 154 is connected to the industrial computer 151 and is used to upload the second monitoring data to the server for monitoring.

[0064] Specifically, based on the second near-field communication module 143, the first serial communication module 152, and the first near-field communication module 153, the second collection box 140 and the third collection box 150 establish a stable data exchange and communication connection, facilitating rapid data transmission. The second near-field communication module 143 and the first near-field communication module 153 enable wireless connection between the second collection box 140 (slave computer) and the third collection box 150 (host computer), while the first serial communication module 152 is used for a wired serial port connection between the second collection box 140 (slave computer) and the third collection box 150 (host computer).

[0065] In this embodiment, both the first collection box 130 and the third collection box 150 need to be powered by a power management module.

[0066] The first collection box 130 includes a first power management module 134, which is connected to any one or all of the first collector 132, the microprocessor 131, and the first Internet of Things module 133, and is used to power any one or all of the first collector 132, the microprocessor 131, and the first Internet of Things module 133.

[0067] The second acquisition box 140 includes a second power management module 144, which is connected to any one or all of the second collector 142, the programmable logic controller 141, and the second near-field communication module 143, and is used to power any one or all of the second collector 142, the programmable logic controller 141, and the second near-field communication module 143.

[0068] like Figure 7Figure 1 shows a detailed circuit diagram of the second data acquisition box. Second power management module 144 is connected to power source 1 and power source 2. Power source 1 and power source 2 can be a combination of solar panels and batteries, or connected to the city power supply system. The V+ and V- terminals of second power management module 144 are connected to the V+ and V- terminals of programmable logic controller 141, second data acquisition unit 142, and second near-field communication module 143, respectively, to provide power to any or all of these modules.

[0069] The positive signal line RS+ end and the negative signal line RS- end of the programmable logic controller 141 are respectively connected to the positive signal line RS+ end and the negative signal line RS- end of the second near-field communication module 143, the second collector 142 and the third collection box 150 to collect the second digital signal and send it to the third collection box 150 to form a second monitoring signal.

[0070] Sensors 1, 2, 3, and 4 respectively collect different electrical signals (such as the electrical signal of the acceleration sensor). One end of each sensor is connected to the I+ end of the second collector 142, and the other end is connected to the I- end of the second collector 142.

[0071] The sensor uses a monitoring device proposed by the utility model, and the power management module supplies power to one or more modules in the first and third collection boxes; the second collection box and the third collection box establish a communication connection through the near-field communication module to send the second digital signal of the second collection box to the third collection box; finally, the monitoring data is provided to the server for monitoring through the Internet of Things module.

[0072] An embodiment of the present invention now describes a monitoring device having two collection boxes. The first collection box is responsible for forming the first monitoring data, and the second collection box is responsible for forming the second monitoring data. Please refer to Figure 8 Another monitoring device 200 includes a first sensor unit 210 , a second sensor unit 220 , a first collection box 230 and a second collection box 240 .

[0073] The first sensor unit 210 is installed at the cantilever assembly point, column, and main beam mid-span of the steel box girder to collect the first electrical signal; the second sensor unit 220 is installed at the cantilever assembly point of the steel box girder to collect the second electrical signal.

[0074] The first collection box 230 includes a microprocessor 231 and a first collector 232 . The first collector 232 converts the first electrical signal into a first digital signal and sends the first digital signal to the microprocessor 231 to form first monitoring data.

[0075] The second collection box 240 includes a second collector 242 and an edge control unit 241 . The second collector 242 converts the second electrical signal into a second digital signal and sends the second digital signal to the edge control unit 241 to form second monitoring data.

[0076] The first collection box 230 also includes a first Internet of Things module 233 and a first power management module 234; the first Internet of Things module 233 is connected to the microprocessor 231, and is used to upload the first monitoring data to the server monitoring; the first power management module 234 is connected to the first collector 232, the microprocessor 231, and any one or all modules of the first Internet of Things module 233, and is used to power any one or all modules of the first collector 232, the microprocessor 231, and the first Internet of Things module 233.

[0077] The second collection box 240 also includes a second Internet of Things module 243 and a second power management module 244; the second Internet of Things module 243 is connected to the edge control unit 241, and is used to upload the second monitoring data to the server monitoring; the second power management module 244 is connected to the second collector 242, the edge control unit 241, and any one or all modules of the second Internet of Things module 243, and is used to power any one or all modules of the second collector 242, the edge control unit 241, and the second Internet of Things module 243.

[0078] Specifically, the installation location and type of the sensor units in this embodiment are consistent with those described above and are not further described here. The second acquisition box 240 integrates the programmable logic controller and industrial computer described in the three acquisition box embodiments into a single edge control unit 241, thereby eliminating the near-field communication module and / or serial communication module required when combining the two acquisition boxes.

[0079] The collection boxes of this utility model can also be integrated into one, without distinguishing between the collection boxes for conventional monitoring projects and the collection boxes for edge computing monitoring projects. Similarly, the monitoring device with two collection boxes in this embodiment has the same operating mechanism as the monitoring device with three collection boxes described above, and will not be repeated here.

[0080] The monitoring device 200 provided by the present invention collects different types of monitoring data through the first collection box 230 and the second collection box 240, and can cover most monitoring scenarios of bridge construction.

[0081] The utility model also proposes a monitoring system, which includes a monitoring device, a server and a terminal device. The server uniformly receives two monitoring signals collected by the monitoring device, and realizes visual display of the monitoring data on the terminal device.

[0082] An embodiment of the present invention provides a monitoring system, please refer to Figure 9 , including a monitoring device 100, a server 200 and a terminal device 300.

[0083] The monitoring device 100 is used to collect first monitoring data and second monitoring data.

[0084] The server 200 is connected to the monitoring device 100 and receives and monitors the first monitoring data and the second monitoring data.

[0085] The terminal device 300 is connected to the server 200 and is used to display the first monitoring data and the second monitoring data.

[0086] Specifically, the monitoring device 100 is a precision device designed to collect and record monitoring data of different monitoring projects, such as dynamic strain monitoring data and temperature monitoring data of conventional monitoring projects, as well as acceleration monitoring data and binocular camera data of monitoring projects with edge computing requirements.

[0087] The sensors in the monitoring device 100 include acceleration sensors, binocular cameras, dynamic strain sensors, static strain sensors, tilt sensors, temperature sensors, and wind speed sensors. Compared with traditional monitoring devices, acceleration sensors and dynamic strain sensors are newly added to monitor the impact of subway vibration on steel box girder construction during operation.

[0088] In the monitoring system of steel box girders, the arrangement of sensors is crucial to ensuring structural safety and performance monitoring. The linear and node deformations of the bridge in each construction section are inconsistent. The installation points of the sensors need to be determined based on the structural deformation relationship and the most unfavorable stress position.

[0089] Before sending the first and second monitoring data to server 200, server 200 identifies existing construction models and associated progress data. The progress data corresponds to the construction models. Each construction model corresponds to sensors installed in monitoring device 100, which monitor and record key parameters such as environmental conditions, structural stress, vibration, and displacement. Different combinations of progress and construction models require defined alarm values for the monitoring data. These values are set based on safety standards and project requirements to ensure structural integrity and safety during construction.

[0090] The terminal device 300 displays the monitoring status of the server 200 in a visual form. During the construction period, the monitoring data of the monitoring device 100 and the alarm status of the server 200 can be viewed in real time.

[0091] In the above embodiments, the description of each embodiment has its own focus. For parts that are not described or recorded in detail in a certain embodiment, reference can be made to the relevant description of other embodiments.

[0092] Those skilled in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented with electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0093] Units described as separate components may or may not be physically separate, and components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of these units may be selected to achieve the purpose of this embodiment according to actual needs.

[0094] In addition, the functional units in the various embodiments of the present application may be integrated into a single processing unit, or each unit may exist physically separately, or two or more units may be integrated into a single unit. The aforementioned integrated units may be implemented in the form of hardware or software functional units.

[0095] It should be noted that the above embodiments can be freely combined as needed. The above are only preferred embodiments of the present invention. It should be noted that those skilled in the art can make several improvements and modifications without departing from the principles of the present invention, and such improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A monitoring device, characterized in that: Used to monitor the status of steel box girders in real time, including: The first sensor unit is installed at the cantilever assembly point, column, and main beam mid-span of the steel box girder, and is used to collect the first electrical signal; the second sensor unit is installed at the cantilever assembly point of the steel box girder, and is used to collect the second electrical signal; A first collection box includes a microprocessor and a first collector, wherein the first collector converts the first electrical signal into a first digital signal and sends the first digital signal to the microprocessor to form first monitoring data; A second acquisition box includes a programmable logic controller and a second collector, wherein the second collector converts the second electrical signal into a second digital signal, and the programmable logic controller sends the second digital signal; The third collection box includes an industrial computer, which receives the second digital signal and converts the second digital signal into second monitoring data.

2. The monitoring device according to claim 1, characterized in that: The third acquisition box further includes a first serial communication module and / or a first near field communication module; The second collection box further includes a second near-field communication module connected to the programmable logic controller and configured to establish a serial port and / or near-field communication connection with the third collection box.

3. The monitoring device according to claim 1, wherein: The first collection box further includes a first Internet of Things module connected to the microprocessor and configured to upload the first monitoring data to a server for monitoring; The third collection box also includes a second Internet of Things module, which is connected to the industrial computer and is used to upload the second monitoring data to the server for monitoring.

4. The monitoring device according to claim 1, wherein: The first sensor unit includes a dynamic strain sensor, a static strain sensor, a tilt sensor, a temperature sensor, and a wind speed sensor; the second sensor unit is connected to the connection terminal of the second collector; The second sensor unit includes an acceleration sensor and a binocular camera; the first sensor unit is connected to the connection terminal of the first collector.

5. The monitoring device according to any one of claims 1 to 3, characterized in that: The first collection box further includes a first power management module connected to any one or all of the first collector, the microprocessor, and the first Internet of Things module, and configured to supply power to the first collector, the microprocessor, and any one or all of the first Internet of Things module; The second collection box also includes a second power management module, which is connected to any one or all of the second collector, the programmable logic controller, and the second near-field communication module, and is used to power the second collector, the programmable logic controller, and any one or all of the second near-field communication module.

6. A monitoring device, characterized in that: Used to monitor the status of steel box girders in real time, including: The first sensor unit is installed at the cantilever assembly point, column, and main beam mid-span of the steel box girder, and is used to collect the first electrical signal; the second sensor unit is installed at the cantilever assembly point of the steel box girder, and is used to collect the second electrical signal; A first collection box includes a microprocessor and a first collector, wherein the first collector converts the first electrical signal into a first digital signal and sends the first digital signal to the microprocessor to form first monitoring data; The second collection box includes a second collector and an edge control unit. The second collector converts the second electrical signal into a second digital signal and sends it to the edge control unit to form second monitoring data.

7. The monitoring device according to claim 6, characterized in that: The first collection box further includes a first Internet of Things module connected to the microprocessor and configured to upload the first monitoring data to a server for monitoring; The second collection box also includes a second Internet of Things module, which is connected to the edge control unit and is used to upload the second monitoring data to the server for monitoring.

8. The monitoring device according to any one of claims 6-7, characterized in that: The first collection box further includes a first power management module connected to any one or all of the first collector, the microprocessor, and the first Internet of Things module, and configured to supply power to the first collector, the microprocessor, and any one or all of the first Internet of Things module; The second collection box also includes a second power management module, which is connected to any one or all of the second collector, the edge control unit, and the second Internet of Things module, and is used to power the second collector, the edge control unit, and any one or all of the second Internet of Things module.

9. A monitoring system, characterized in that: The monitoring device according to any one of claims 1 to 8 comprises: A monitoring device, configured to collect first monitoring data and second monitoring data; The server is connected to the monitoring device, and receives and monitors the first monitoring data and the second monitoring data.

10. The monitoring system according to claim 9, characterized in that: Also includes: A terminal device is connected to the server and is used to display the first monitoring data and the second monitoring data.

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