Laser scanning deformation monitoring system and method

Abstract

The invention relates to the technical field of laser measurement, in particular to a laser scanning deformation monitoring system and method.The laser scanning deformation monitoring system comprises a monitoring subsystem, a power supply subsystem and a software subsystem, the monitoring subsystem comprises a monitoring module, a voltage stabilizing module, a rotating module and an auxiliary module, and the software subsystem remotely awakens or controls operation of the monitoring subsystem; monitoring data of the tunnel or the bridge are checked; the monitoring module emits array laser beam targets for monitoring, and compares the array laser beam target displacement at the moment to monitor the deformation condition of the tunnel or the bridge to obtain monitoring data; the voltage stabilizing module is used for stabilizing the voltage input into the monitoring module by the power supply subsystem; the rotating module drives the monitoring module to rotate by a fixed angle, so that the array laser beams can irradiate all targets in a view factory, the system emits the array laser beams through the monitoring module to irradiate a tunnel or a bridge, multi-point monitoring is conducted on the tunnel or the bridge, and a tunnel or bridge model is constructed through the software subsystem to reflect the deformation condition in real time.

Description

Technical Field

[0001] The present invention relates to the field of laser measurement technology, and in particular to a laser scanning deformation monitoring system and method. Background Art

[0002] Tunnels and bridges are indispensable components of engineering construction. With the development of social economy and technology, the proportion of tunnels in engineering construction is getting higher and higher. However, due to the complex and changeable on-site conditions of tunnel and bridge construction and the uncertainty of geological exploration, there are certain risks in the construction and operation of tunnels and bridges. Therefore, it is very important to monitor the deformation of tunnels and bridges.

[0003] Traditional tunnel or bridge deformation measurement methods can be divided into two categories: contact measurement and non-contact measurement. Contact measurement mainly includes strain gauge method, and non-contact measurement mainly includes total station method.

[0004] The strain gauge method uses the changes in stress on the arranged strain gauges to infer the deformation of each point. It has high requirements for installation and layout, and cannot observe larger displacement deformations. The total station method has higher accuracy, but its operation is complicated, has high requirements on personnel, and is not real-time. Summary of the invention

[0005] The object of the present invention is to provide a laser scanning deformation monitoring system and method, aiming to solve the problems of high installation requirements and poor real-time performance of existing tunnel deformation measurement systems.

[0006] To achieve the above-mentioned purpose, in a first aspect, the present invention provides a laser scanning deformation monitoring system, comprising a monitoring subsystem, a power supply subsystem and a software subsystem, wherein the power supply subsystem is respectively connected to the monitoring subsystem and the software subsystem, the monitoring subsystem is connected to the software subsystem, the monitoring subsystem comprises a monitoring module, a voltage stabilizing module, a rotation module and an auxiliary module, and the monitoring module is respectively connected to the voltage stabilizing module, the rotation module and the auxiliary module;

[0007] The power supply subsystem is used to provide power to the monitoring subsystem and the software subsystem to ensure the normal operation of the system;

[0008] The software subsystem is used to remotely wake up or control the operation of the monitoring subsystem and view the monitoring data of the tunnel or bridge;

[0009] The monitoring module is used to transmit array laser beam target monitoring, compare the displacement of the array laser beam target at each moment to monitor the deformation of the tunnel or bridge, and obtain monitoring data;

[0010] The voltage stabilizing module is used to stabilize the voltage inputted into the monitoring module by the power supply subsystem;

[0011] The rotation module is used to drive the monitoring module to rotate at a fixed angle so that the array laser beam can irradiate all targets in the viewing factory to achieve overall monitoring of the tunnel or bridge;

[0012] The auxiliary module is used to assist the monitoring module in being installed in a tunnel or a bridge and to protect the monitoring module.

[0013] Wherein, the rotation module comprises a shock absorbing unit, a rotation unit and a rotating mirror unit, and the shock absorbing unit, the rotation unit and the rotating mirror unit are respectively connected to the monitoring module;

[0014] The shock absorbing unit is used to absorb the vibration transmitted to the monitoring module by the tunnel or bridge;

[0015] The rotating unit is used to drive the monitoring module to rotate and adjust the angle at which the monitoring module emits the array laser beam;

[0016] The rotating mirror unit is used to rotate and reflect the array laser beam to achieve multi-point monitoring of the monitoring module.

[0017] Wherein, the protection module comprises an installation unit and a protection unit, and the installation unit and the protection unit are respectively connected to the monitoring module;

[0018] The installation unit is used to assist the monitoring module;

[0019] The protection unit is used to protect the monitoring module.

[0020] Wherein, the monitoring module includes a laser emitting unit and a target unit, and the laser emitting unit and the target unit are respectively connected to the software subsystem;

[0021] The laser emitting unit is used to emit an array laser beam toward the target unit;

[0022] The target unit is used to receive the array laser beam and is used in conjunction with the laser emitting unit to perform deformation monitoring.

[0023] The monitoring module has a DC voltage of 8-36V, has a TF card interface, an RTC real-time clock, a temperature sensor and an inclination sensor, and can perform multi-point laser ranging.

[0024] The software subsystem control panel has a built-in reliable Linux system, supports wired network and wireless MESH network interface drivers, supports remote upgrade of application programs on public network servers, and supports IP access to WEB interface configuration.

[0025] Wherein, the power supply subsystem includes a lithium battery module and a solar module, and the lithium battery module and the solar module are connected to the monitoring subsystem and the software subsystem respectively;

[0026] The lithium battery module is used to provide power to the monitoring subsystem and the software subsystem to ensure the normal operation of the system;

[0027] The solar module recycles solar energy based on photovoltaic technology and converts the solar energy into electrical energy for use by the system.

[0028] In a second aspect, the present invention further provides a laser scanning deformation monitoring method, comprising the following steps:

[0029] The power supply subsystem supplies power to the software subsystem and the monitoring subsystem;

[0030] The software subsystem wakes up the monitoring module to operate, the monitoring module emits an array laser beam to illuminate the tunnel or bridge, and the rotation module drives the monitoring module to rotate at a fixed angle to perform multi-point monitoring on the tunnel or bridge to obtain monitoring data;

[0031] The software subsystem receives monitoring data and builds a tunnel or bridge model based on 3D software to respond to deformation in real time.

[0032] The laser scanning deformation monitoring system of the present invention comprises the following steps: the power supply subsystem provides electric energy to the monitoring subsystem and the software subsystem to ensure the normal operation of the system; the software subsystem remotely wakes up or controls the operation of the monitoring subsystem and checks the monitoring data of the tunnel or bridge; the monitoring module emits an array laser beam target for monitoring, compares the displacement of the array laser beam target at each moment to monitor the deformation of the tunnel or bridge, and obtains the monitoring data; the voltage stabilizing module is used to stabilize the voltage inputted into the monitoring module by the power supply subsystem; the rotation module drives the monitoring module to rotate at a fixed angle so that the array laser beam can irradiate all the objects in the monitoring plant. The auxiliary module assists the monitoring module to be installed in the tunnel or bridge and protects the monitoring module. The system emits an array laser beam through the monitoring module to illuminate the tunnel or bridge. The rotation module drives the monitoring module to rotate a fixed angle to perform multi-point monitoring of the tunnel or bridge, and sends the detected data to the software subsystem. The software subsystem builds a tunnel or bridge model based on three-dimensional software to respond to deformation in real time. When deformation is detected, it notifies the user immediately. The operation is simple, which solves the problems of high installation requirements and poor real-time performance of existing tunnel deformation measurement systems. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. 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 creative work.

[0034] Figure 1 It is a connection schematic diagram of a laser scanning deformation monitoring system provided by the present invention.

[0035] Figure 2 It is a schematic diagram of a rotation module of a laser scanning deformation monitoring system provided by the present invention.

[0036] Figure 3 It is a schematic diagram of an auxiliary module of a laser scanning deformation monitoring system provided by the present invention.

[0037] Figure 4 It is a schematic diagram of a monitoring module of a laser scanning deformation monitoring system provided by the present invention.

[0038] Figure 5 It is a schematic diagram of a power supply subsystem of a laser scanning deformation monitoring system provided by the present invention.

[0039] Figure 6 It is a schematic diagram of an early warning subsystem of a laser scanning deformation monitoring system provided by the present invention.

[0040] Figure 7 It is a schematic diagram of the relative angle relationship between the measuring points.

[0041] Figure 8 It is a parameter diagram of a laser emission unit of a laser scanning deformation monitoring system provided by the present invention.

[0042] Fig. 9 It is a parameter diagram of an inclination sensor of a monitoring module of a laser scanning deformation monitoring system provided by the present invention.

[0043] In the figure: 1-monitoring subsystem, 2-power supply subsystem, 3-software subsystem, 4-early warning subsystem, 5-monitoring module, 6-voltage stabilizing module, 7-rotation module, 8-auxiliary module, 9-shock absorption unit, 10-rotation unit, 11-rotating mirror unit, 12-laser emission unit, 13-target unit, 14-lithium battery module, 15-solar module, 16-self-test module, 17-alarm module, 18-analysis unit, 19-alarm unit, 20-sending unit, 21-installation unit, 22-protection unit. DETAILED DESCRIPTION

[0044] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0045] See also Figures 1 to 9 In a first aspect, the present invention provides a laser scanning deformation monitoring system, comprising a monitoring subsystem 1, a power supply subsystem 2 and a software subsystem 3, wherein the power supply subsystem 2 is connected to the monitoring subsystem 1 and the software subsystem 3 respectively, and the monitoring subsystem 1 is connected to the software subsystem 3, and the monitoring subsystem 1 comprises a monitoring module 5, a voltage stabilizing module 6, a rotation module 7 and an auxiliary module 8, and the monitoring module 5 is connected to the voltage stabilizing module 6, the rotation module 7 and the auxiliary module 8 respectively;

[0046] The power supply subsystem 2 is used to provide power to the monitoring subsystem 1 and the software subsystem 3 to ensure the normal operation of the system;

[0047] The software subsystem 3 is used to remotely wake up or control the operation of the monitoring subsystem 1 and view the monitoring data of the tunnel or bridge;

[0048] The monitoring module 5 is used to emit array laser beam target monitoring, compare the displacement of the array laser beam target at each moment to monitor the deformation of the tunnel or bridge, and obtain monitoring data;

[0049] The voltage stabilizing module 6 is used to stabilize the voltage inputted by the electronic power supply system 2 into the monitoring module 5;

[0050] The rotation module 7 is used to drive the monitoring module 5 to rotate at a fixed angle so that the array laser beam can irradiate all targets in the viewing factory to achieve overall monitoring of the tunnel or bridge;

[0051] The auxiliary module 8 is used to assist the monitoring module 5 in being installed in a tunnel or a bridge and to protect the monitoring module 5 .

[0052] In this embodiment, the power supply subsystem 2 provides power to the monitoring subsystem 1 and the software subsystem 3 to ensure the normal operation of the system; the software subsystem 3 remotely wakes up or controls the operation of the monitoring subsystem 1 and checks the monitoring data of the tunnel or bridge; the monitoring module 5 emits an array laser beam target for monitoring, compares the displacement of the array laser beam target at each moment to monitor the deformation of the tunnel or bridge, and obtains monitoring data; the voltage stabilizing module 6 is used to stabilize the voltage input to the monitoring module 5 by the power supply subsystem 2 to prevent the mainboard of the monitoring module 5 from being burned out; the rotation module 7 drives the monitoring module 5 to rotate a fixed angle so that the array laser beam can irradiate the visual All targets in the factory can realize the monitoring of the tunnel or bridge as a whole; the auxiliary module 8 assists the monitoring module 5 to be installed in the tunnel or bridge, and protects the monitoring module 5. The system emits an array laser beam through the monitoring module 5 to illuminate the tunnel or bridge, and the rotation module 7 drives the monitoring module 5 to rotate a fixed angle to perform multi-point monitoring of the tunnel or bridge, and sends the detected data to the software subsystem 3. The software subsystem 3 builds a tunnel or bridge model based on three-dimensional software to respond to deformation in real time, and informs the user at the first time when deformation is detected. The operation is simple, which solves the problems of high installation requirements and poor real-time performance of the existing tunnel deformation measurement system.

[0053] Further, the rotation module 7 includes a shock absorbing unit 9, a rotation unit 10 and a rotating mirror unit 11, and the shock absorbing unit 9, the rotation unit 10 and the rotating mirror unit 11 are respectively connected to the monitoring module 5; the protection module includes a mounting unit 21 and a protection unit 22, and the mounting unit 21 and the protection unit 22 are respectively connected to the monitoring module 5; the monitoring module 5 includes a laser emitting unit 12 and a target unit 13, and the laser emitting unit 12 and the target unit 13 are respectively connected to the software subsystem 3;

[0054] The shock absorbing unit 9 is used to absorb the vibration transmitted to the monitoring module 5 by the tunnel or bridge;

[0055] The rotating unit 10 is used to drive the monitoring module 5 to rotate and adjust the angle at which the monitoring module 5 emits the array laser beam;

[0056] The rotating mirror unit 11 is used to rotate and reflect the array laser beam to achieve multi-point monitoring of the monitoring module 5;

[0057] The installation unit 21 is used to assist the monitoring module 5;

[0058] The protection unit 22 is used to protect the monitoring module 5;

[0059] The laser emitting unit 12 is used to emit an array laser beam to the target unit 13;

[0060] The target unit 13 is used to receive the array laser beam and cooperate with the laser emitting unit 12 to perform deformation monitoring.

[0061] In this embodiment, the vibration transmitted to the monitoring module 5 by the tunnel or bridge is consumed by the shock absorbing unit 9 to avoid the loosening and damage of the internal components of the monitoring module 5, thereby affecting the service life of the monitoring module 5. The rotating unit 10 drives the monitoring module 5 to rotate and adjusts the angle at which the monitoring module 5 emits the array laser beam to achieve multi-point monitoring. The rotating mirror unit 11 rotates and reflects the array laser beam, which can also achieve the purpose of multi-point monitoring of the monitoring module 5. However, the rotating mirror unit 11 has lower power than the rotating unit 10 and can be used selectively with the rotating unit 10. The mounting unit 21 is used to facilitate the installation and disassembly of the monitoring module 5. To facilitate the later repair of the monitoring module 5 in case of damage, the protection unit 22 is used to protect the monitoring module 5 from water and dust. The laser emitting unit 12 of the monitoring module 5 emits an array laser beam to the target unit 13. The target unit 13 receives the array laser beam and cooperates with the laser emitting unit 12 to realize laser monitoring of tunnels or bridges. There are eight target units 13. Whether all eight measuring points return parameters and the conditions of the returned parameters can be configured and selected on the software subsystem 3, that is, the user can select several fixed measuring lines for monitoring according to the tunnel conditions on the web interface and return the set parameter values. By default, all eight measuring lines are open.

[0062] Furthermore, the monitoring module 5 has a DC voltage of 8-36V, has a TF card interface, an RTC real-time clock, a temperature sensor and an inclination sensor, and can perform multi-point laser ranging.

[0063] In this embodiment, the TF card interface, the monitoring module 5 is convenient for debugging, and the RTC real-time clock provides an accurate time reference for the system, thereby realizing the time control function of the device, that is, the device can be turned on and off at equal intervals, and the boot time and sleep time can be customized. The monitoring module 5 can perform multi-point laser ranging (0-90°), and the relative angle relationship between each measuring point is as follows Figure 7 The distance measurement value of each survey line has a separate identification. The parameters returned for a single survey line include: identification code, distance measurement value, and the angle of the side line.

[0064] Furthermore, the control board of the software subsystem 3 is embedded with a reliable Linux system, supports wired network and wireless MESH network interface drivers, supports remote upgrade of application programs on a public network server, and supports IP access to WEB interface configuration.

[0065] In this embodiment, IP accesses the WEB interface configuration, and all parameters of each hardware can be configured in this interface, including but not limited to monitoring frequency, sleep time, power-on time, and return parameters.

[0066] Furthermore, the power supply subsystem 2 includes a lithium battery module 14 and a solar module 15, and the lithium battery module 14 and the solar module 15 are connected to the monitoring subsystem 1 and the software subsystem 3 respectively;

[0067] The lithium battery module 14 is used to provide power to the monitoring subsystem 1 and the software subsystem 3 to ensure the normal operation of the system;

[0068] The solar module 15 recycles solar energy based on photovoltaic technology and converts the solar energy into electrical energy for use by the system.

[0069] In this embodiment, the lithium battery module 14 provides electric energy to the monitoring subsystem 1 and the software subsystem 3 to ensure the normal operation of the system; the solar module 15 recycles solar energy based on photovoltaic technology and converts solar energy into electric energy for use by the system.

[0070] Furthermore, a laser scanning deformation monitoring system further includes an early warning subsystem 4, wherein the early warning subsystem 4 includes a self-checking module 16 and an alarm module 17, wherein the self-checking module 16 and the alarm module 17 are connected;

[0071] The self-test module 16 is used for self-testing the monitoring subsystem 1 and the power supply subsystem 2 to obtain self-test data;

[0072] The alarm module 17 performs analysis based on the self-test data and determines whether to issue an alarm based on the analysis result.

[0073] In this embodiment, the self-test module 16 performs self-test on the monitoring subsystem 1 and the power supply subsystem 2 to obtain self-test data (voltage value, current value, power and temperature). The alarm module 17 performs analysis based on the self-test data and determines whether to issue an alarm based on the analysis results.

[0074] Further, the alarm module 17 includes an analysis unit 18, an alarm unit 19 and a sending unit 20, and the analysis unit 18, the alarm unit 19 and the sending unit 20 are connected;

[0075] The analysis unit 18 obtains analysis results based on the comparison and analysis of the self-test data and the equipment parameters;

[0076] The alarm unit 19 confirms whether the system is damaged based on the analysis result. If the system is not damaged, no alarm is required. If the system is damaged, an alarm is sent to the software subsystem 3.

[0077] The sending unit 20 is used to send alarm information to the software subsystem 3.

[0078] In this embodiment, the analysis unit 18 obtains an analysis result based on a comparative analysis of the self-test data and the equipment parameters; the alarm unit 19 confirms whether the system is faulty and damaged based on the analysis result. If the system is not damaged, no alarm is required; if it is damaged, an alarm is sent to the software subsystem 3; the sending unit 20 sends an alarm message to the software subsystem 3.

[0079] In a second aspect, the present invention further provides a laser scanning deformation monitoring method, comprising the following steps:

[0080] S1 power supply subsystem 2 supplies power to software subsystem 3 and monitoring subsystem 1;

[0081] S2 software subsystem 3 wakes up monitoring module 5 to operate, monitoring module 5 emits array laser beam to illuminate tunnel or bridge, rotation module 7 drives monitoring module 5 to rotate at a fixed angle, performs multi-point monitoring on tunnel or bridge, and obtains monitoring data;

[0082] Specifically, the system emits an array laser beam to illuminate a tunnel or a bridge through the monitoring module 5. The rotating unit 10 drives the monitoring module 5 to rotate and adjusts the angle at which the monitoring module 5 emits the array laser beam to achieve multi-point monitoring. The rotating mirror unit 11 rotates and reflects the array laser beam, which can also achieve the purpose of multi-point monitoring of the monitoring module 5. However, the rotating mirror unit 11 has lower power than the rotating unit 10 and can be used selectively with the rotating unit 10.

[0083] The S3 software subsystem 3 receives the monitoring data and builds a tunnel or bridge model based on three-dimensional software to respond to deformation conditions in real time.

[0084] What is disclosed above is only a preferred embodiment of the laser scanning deformation monitoring system and method of the present invention. Of course, this cannot be used to limit the scope of rights of the present invention. Ordinary technicians in this field can understand that all or part of the processes of the above-mentioned embodiments and equivalent changes made according to the claims of the present invention are still within the scope of the invention.

Claims

1. A laser scanning deformation monitoring system, characterized in that: It includes a monitoring subsystem, a power supply subsystem and a software subsystem, the power supply subsystem is connected to the monitoring subsystem and the software subsystem respectively, the monitoring subsystem is connected to the software subsystem, the monitoring subsystem includes a monitoring module, a voltage stabilizing module, a rotation module and an auxiliary module, the monitoring module is connected to the voltage stabilizing module, the rotation module and the auxiliary module respectively; The power supply subsystem is used to provide power to the monitoring subsystem and the software subsystem to ensure the normal operation of the system; The software subsystem is used to remotely wake up or control the operation of the monitoring subsystem and view the monitoring data of the tunnel or bridge; The monitoring module is used to transmit array laser beam target monitoring, compare the displacement of the array laser beam target at each moment to monitor the deformation of the tunnel or bridge, and obtain monitoring data; The voltage stabilizing module is used to stabilize the voltage inputted into the monitoring module by the power supply subsystem; The rotation module is used to drive the monitoring module to rotate at a fixed angle so that the array laser beam can irradiate all targets in the viewing factory to achieve overall monitoring of the tunnel or bridge; The auxiliary module is used to assist the monitoring module in being installed in a tunnel or a bridge and to protect the monitoring module.

2. A laser scanning deformation monitoring system as claimed in claim 1, characterized in that: The rotation module includes a shock absorbing unit, a rotation unit and a rotating mirror unit, and the shock absorbing unit, the rotation unit and the rotating mirror unit are respectively connected to the monitoring module; The shock absorbing unit is used to absorb the vibration transmitted to the monitoring module by the tunnel or bridge; The rotating unit is used to drive the monitoring module to rotate and adjust the angle at which the monitoring module emits the array laser beam; The rotating mirror unit is used to rotate and reflect the array laser beam to achieve multi-point monitoring of the monitoring module.

3. A laser scanning deformation monitoring system as claimed in claim 1, characterized in that: The protection module comprises an installation unit and a protection unit, and the installation unit and the protection unit are respectively connected to the monitoring module; The installation unit is used to assist the monitoring module; The protection unit is used to protect the monitoring module.

4. A laser scanning deformation monitoring system as claimed in claim 1, characterized in that: The monitoring module includes a laser emitting unit and a target unit, and the laser emitting unit and the target unit are respectively connected to the software subsystem; The laser emitting unit is used to emit an array laser beam toward the target unit; The target unit is used to receive the array laser beam and is used in conjunction with the laser emitting unit to perform deformation monitoring.

5. The laser scanning deformation monitoring system according to claim 1, characterized in that: The monitoring module has a DC voltage of 8-36V, has a TF card interface, an RTC real-time clock, a temperature sensor and an inclination sensor, and can perform multi-point laser ranging.

6. The laser scanning deformation monitoring system according to claim 1, characterized in that: The software subsystem control panel is embedded with a reliable Linux system, supports wired network and wireless MESH network interface drivers, supports remote upgrade of application programs on a public network server, and supports IP access to WEB interface configuration.

7. The laser scanning deformation monitoring system according to claim 1, characterized in that: The power supply subsystem includes a lithium battery module and a solar module, and the lithium battery module and the solar module are connected to the monitoring subsystem and the software subsystem respectively; The lithium battery module is used to provide power to the monitoring subsystem and the software subsystem to ensure the normal operation of the system; The solar module recycles solar energy based on photovoltaic technology and converts the solar energy into electrical energy for use by the system.

8. A laser scanning deformation monitoring method, applied to a laser scanning deformation monitoring system as claimed in claim 1, characterized in that: The following steps are involved: The power supply subsystem supplies power to the software subsystem and the monitoring subsystem; The software subsystem wakes up the monitoring module to operate, the monitoring module emits an array laser beam to illuminate the tunnel or bridge, and the rotation module drives the monitoring module to rotate at a fixed angle to perform multi-point monitoring on the tunnel or bridge to obtain monitoring data; The software subsystem receives monitoring data and builds a tunnel or bridge model based on 3D software to respond to deformation in real time.

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