A real-time monitoring device, system and method for bridge status based on radar deployment

Abstract

The present invention relates to the technical field of bridge deflection monitoring equipment, and in particular to a real-time monitoring equipment, system and method for bridge status based on radar deployment, comprising: a clamping frame; a bearing plate frame: a reciprocating motion mechanism and a gear seat are respectively provided on the two side surfaces of the bearing plate frame, and the other end of the reciprocating motion mechanism passes through the other side surface of the bearing plate frame, and is respectively provided with a wheel pressure detection mechanism and an infrared rangefinder; a triangular target and an irradiation lamp: respectively provided on a rotating disk and an end surface of the rotating disk passing through the other side of the bearing plate frame, and a receiving mechanism. The present invention has a reasonable structure and adopts a variety of monitoring means, which effectively improves the accuracy and reliability of monitoring. By simplifying the installation process of the triangular target and reducing the number of triangular targets to be installed, it not only improves the work efficiency, but also significantly reduces the damage to the bridge structure. The present invention also has a rapid positioning function of the radar equipment, which further improves the monitoring efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of bridge deflection monitoring equipment, and in particular to a radar-based real-time monitoring device, system and method for bridge status. Background Art

[0002] In the field of bridge health monitoring, radar technology has gradually become an important means of monitoring bridge status with its unique advantages such as all-weather, non-contact, high precision, multi-target and long-distance. Among them, millimeter-wave radar and microwave radar are the two main types of radar, which play an irreplaceable role in monitoring bridge deflection.

[0003] Existing radar-based bridge condition monitoring devices typically include multiple sets of triangular targets installed at the bottom of the bridge, and radar equipment installed on the ground for transmitting and receiving radar waves. The working principle of this monitoring device is that the radar equipment transmits radar waves, which are reflected back after encountering the triangular targets at the bottom of the bridge. The radar equipment receives the reflected radar waves and obtains the deflection information of the bridge by processing the signals of the reflected waves.

[0004] However, this traditional radar monitoring device has some obvious problems when in use. First, the detection method is relatively simple, mainly relying on the reflection of radar waves and triangular targets to obtain bridge status information, and lacks other auxiliary means to improve the accuracy and reliability of monitoring; second, the installation process of the triangular target is relatively cumbersome, and requires multiple precise positioning and fixation at the bottom of the bridge, which not only increases the difficulty of installation, but may also cause certain damage to the bridge structure; finally, the positioning of the radar equipment is not convenient enough, and usually complex adjustments and calibrations are required on the ground to ensure that the radar waves can accurately illuminate the triangular targets, which greatly reduces the monitoring efficiency. Summary of the Invention

[0005] The present invention aims to solve one of the technical problems in the related art at least to a certain extent.

[0006] To this end, the purpose of the present invention is to propose a real-time monitoring device, system and method for bridge status based on radar deployment. The present invention has a reasonable structure and adopts a variety of monitoring means to effectively improve the accuracy and reliability of monitoring. By simplifying the installation process of triangular targets and reducing the number of triangular targets installed, it not only improves work efficiency but also significantly reduces damage to bridge structures. The present invention also has a rapid positioning function of radar equipment, which further improves monitoring efficiency.

[0007] To achieve the above objectives, the present invention proposes a real-time bridge status monitoring device based on radar deployment, comprising:

[0008] Clamping frame: symmetrically arranged on the bridge, with a horizontal adjustment frame at the bottom;

[0009] Loading plate frame: vertically arranged on the two groups of horizontal adjustment frames and parallel to the bridge, the two side surfaces of the loading plate frame are respectively provided with a reciprocating motion mechanism and a gear seat, one end surface of the reciprocating motion mechanism is provided with a rotating disk, one end of the rotating disk passes through the other side surface of the loading plate frame and is meshed with the gear seat, the other end of the reciprocating motion mechanism passes through the other side surface of the loading plate frame and is respectively provided with a wheel pressure detection mechanism and an infrared rangefinder;

[0010] The triangular target and the irradiation lamp are respectively arranged on the rotating disk and the surface of one end of the rotating disk on the other side of the carrier plate frame, wherein one end of the triangular target is meshed with the gear seat;

[0011] Receiving mechanism: includes a first camera, a radar transmitter and receiver, and a light receiver arranged in sequence on the top of the receiving shell. The first camera, radar transmitter and receiver, and light receiver are respectively connected to a controller arranged on the inner wall of the receiving shell through a bus system to realize data transmission and reception of control instructions. The reciprocating motion mechanism, wheel pressure detection mechanism, and infrared rangefinder are respectively connected to the controller through a wireless communication module to realize data transmission and reception of control instructions.

[0012] In addition, the radar-based real-time bridge status monitoring device proposed in the application may also have the following additional technical features:

[0013] The driving motor is fixedly connected to the other side surface of the supporting plate frame, and the driving motor is fixedly connected to the driving mechanism. The driving mechanism is fixedly connected to the other side surface of the supporting plate frame, and the driving mechanism is connected to the driving mechanism via the wireless communication module. The driving mechanism is connected to the controller through the wireless communication module to realize data transmission and reception of control instructions.

[0014] Specifically, the tooth seat is stepped, and the first step surface and the second step surface of the tooth seat are respectively provided with first teeth and second teeth. The first teeth are intermittently arranged on the surface of the first step surface and meshed with one end of the triangular target. The second teeth are evenly arranged on the surface of the second step surface and meshed with one end of the rotating disk passing through the other side of the supporting plate frame.

[0015] Specifically, the wheeled pressure detection mechanism includes a lifting shaft, a first spring, a roller, a positioning cylinder and a pressure sensor. The lifting shaft is vertically slidably connected to the top of one end of the sliding plate frame that passes through the other side of the load-bearing plate frame, and is fixedly connected to the top of the sliding plate frame with a first spring. A roller is provided on the top of the lifting shaft and is slidably connected to the bottom of the bridge. The bottom of the lifting shaft passes through the interior of the sliding plate frame and is slidably connected to the inner wall of the positioning cylinder provided on the inner wall of the sliding plate frame. The pressure sensor is provided on the inner wall of the positioning cylinder and contacts with the bottom of the lifting shaft. The pressure sensor is connected to the controller through a wireless communication module to realize data transmission and reception of control instructions.

[0016] Specifically, the infrared rangefinder includes a ranging shell, a first ranging sensor and a second ranging sensor. The ranging shell is fixedly connected to the top of one end of the sliding plate frame passing through the other side of the carrying plate frame. The first ranging sensor is arranged on the top of the ranging shell, and the second ranging sensor is arranged on the surface of one end of the ranging shell passing through the interior of the sliding plate frame and corresponding to the position of the lifting shaft. A detection groove is opened at the surface of the lifting shaft corresponding to the position of the second ranging sensor, and the depth of the detection groove gradually increases from top to bottom. The first ranging sensor and the second ranging sensor are respectively connected to the controller through a wireless communication module to realize data transmission and reception of control instructions.

[0017] Specifically, the rotating disk is rotatably connected to the surface of the sliding plate frame, one end of the rotating disk passes through the other side surface of the bearing plate frame and is fixedly connected to an external drive gear disk, the external drive gear disk is located on one side of the top of the second step surface of the gear seat, the external drive gear disk is meshed with the second teeth, and the surface of the mounting portion of the external drive gear disk is slidably connected to the irradiation lamp;

[0018] The inner wall of the central axis of the rotating disk is rotatably connected to a transmission shaft, and the rotating disk passes through the surface of the central axis of the other side of the bearing plate frame and is rotatably connected to an inner driving gear disc, and the inner driving gear disc is located on the inner side of the outer driving gear disc, and the inner driving gear disc is located on the top side of the first step surface of the gear seat and is meshed with the first teeth. One end of the transmission shaft is connected to the inner driving gear disc, and the other end of the transmission shaft passes through the outside of the rotating disk and is fixedly connected to the target seat, and the triangular target is slidably connected to the surface of the target seat, and one end of the triangular target and one end of the irradiation lamp respectively pass through the inside of the target seat and the mounting portion, and are fixedly connected to the second spring between the target seat and the inner wall of the mounting portion.

[0019] Specifically, the triangular target and the irradiation lamp both include detection rods, one end of the two groups of detection rods respectively contacts the bottom of the bridge, and the other ends of the two groups of detection rods respectively penetrate into the target base and the mounting part, and are fixedly connected to one end of the triangular target and the irradiation lamp that penetrate into the target base and the mounting part.

[0020] Specifically, the light receiver includes a grid plate, a photoelectric sensor, a color sensor and a second camera. The grid plate is arranged on the top of the receiving shell, the photoelectric sensor and the color sensor are respectively arranged on the inner wall of the receiving shell and located on the bottom side of the grid plate, and the second camera is arranged on the inner wall of the receiving shell and located on the bottom side of the photoelectric sensor and the color sensor. The photoelectric sensor, color sensor and second camera are respectively connected to the controller through a bus system to realize data transmission and reception of control instructions.

[0021] A real-time monitoring system for bridge status based on radar deployment is implemented by the above-mentioned real-time monitoring device for bridge status based on radar deployment.

[0022] A radar-based real-time bridge status monitoring method, applied to the above-mentioned radar-based real-time bridge status monitoring device, includes the following steps:

[0023] S1: The drive motor receives a control instruction, starts and begins to run stably;

[0024] S2: driven by the driving motor, the sliding plate frame moves smoothly along the length direction of the carrying plate frame;

[0025] S3: The wheeled pressure detection mechanism moves synchronously with the sliding plate frame, and its top always keeps in contact with the bottom of the bridge, and determines whether the deflection value of the bridge changes by monitoring the pressure change in real time;

[0026] S4: The infrared rangefinder also moves synchronously with the sliding plate frame. It measures the height difference with the bottom of the bridge and, combined with the height displacement data of the wheel-type pressure detection mechanism, assists in determining the deflection value of the bridge, thereby improving the accuracy of the detection;

[0027] S5: The rotating disk moves synchronously with the sliding plate frame and engages with the gear holder during the movement. This connection method enables the rotating disk to synchronously drive the irradiation lamp to rotate slowly during the movement, thereby accurately adjusting the irradiation angle. Since the irradiation lamp continuously adjusts the angle during the movement, it can ensure that the light always illuminates the same position, which helps to quickly locate the installation position of the receiving mechanism;

[0028] S6: The triangular target moves synchronously with the rotating disk and is intermittently engaged with the gear holder during the movement. This design enables the triangular target to automatically adjust its angle when moving to the set position, ensuring accurate reflection of the radar waves emitted by the radar transmitter and receiver, thereby improving the sensitivity and accuracy of detection;

[0029] S7: In order to more intuitively reflect the changes in the deflection of the bridge, the triangular target and the illuminating lamp further include detection rods respectively. These detection rods always maintain contact with the bottom of the bridge during movement. When the deflection of the bridge changes, the detection rods will drive the triangular target and the illuminating lamp to change the installation height. The change in the installation height of the triangular target will cause the radar wave value received by the radar transmitter and receiver to change. By analyzing these values, the change in deflection can be judged. At the same time, the change in the installation height of the illuminating lamp will also cause its irradiation area to change. The illumination receiver can further confirm whether the deflection of the bridge has changed by detecting the changes in the illumination position and illumination area. This multiple detection method improves the accuracy and reliability of the bridge deflection detection.

[0030] Additional aspects and advantages of the present invention will be set forth in part in the description which follows and, in part, will be obvious from the description which follows, or may be learned through practice of the present invention.

[0031] Compared with the prior art, the present invention has the following beneficial effects:

[0032] 1. The present invention has a reasonable structure and adopts a variety of monitoring methods, which effectively improves the accuracy and reliability of monitoring. By simplifying the installation process of triangular targets and reducing the number of triangular targets installed, it not only improves work efficiency but also significantly reduces damage to the bridge structure. The present invention also has a rapid positioning function of radar equipment, further improving monitoring efficiency.

[0033] 2. The present invention integrates multiple components such as a wheeled pressure detection mechanism, an infrared rangefinder, a triangular target, a radar transmitter and receiver, a detection rod, an illumination lamp, and a light receiver. Among them, the wheeled pressure detection mechanism monitors the pressure distribution at the bottom of the bridge in real time and detects deflection changes in a timely manner. The infrared rangefinder measures the height difference from the bottom of the bridge and, in combination with the height displacement data of the wheeled pressure detection mechanism, assists in accurately determining the deflection value of the bridge. The triangular target and the radar transmitter and receiver use traditional radar detection technology, while the illumination lamp and the light receiver assist in determining the deflection by detecting the irradiation position and area of ​​the light column. In particular, the triangular target and the illumination lamp both include a detection rod, which contacts the bottom of the bridge and adjusts its height synchronously with changes in deflection. Changes in the height of the triangular target affect the radar wave reception value, thereby determining changes in deflection. Changes in the height of the illumination lamp affect the irradiation position and area of ​​the light column. The light receiver detects these changes to further confirm the deflection. These components work together to achieve diversified monitoring methods, significantly improving the accuracy and reliability of monitoring and achieving excellent results.

[0034] 3. The present invention is equipped with innovative components such as a clamping frame, a horizontal adjustment frame, a load-bearing plate frame, a reciprocating motion mechanism, a gear holder and a rotating disk. The clamping frame is cleverly designed and can be easily and firmly connected to the bottom of the bridge with minimal damage to the bridge structure. The horizontal adjustment frame ensures that the load-bearing plate frame remains parallel to the bottom of the bridge after installation, which facilitates subsequent inspection work. The combined design of the reciprocating motion mechanism, the gear holder and the rotating disk not only enables the triangular target to achieve linear movement, but also can accurately adjust the angle at a preset position to ensure that the radar wave is accurately reflected. The design of a single set of triangular targets effectively reduces the number of installations, reduces production costs and installation difficulty, and the linear movement method ensures the accuracy of installation and measurement. Due to the self-adjustment function of the angle, the manual adjustment of the installation angle is eliminated, which not only ensures the accuracy of the angle, but also reduces labor intensity and improves installation efficiency. The overall use effect is excellent.

[0035] 4. The present invention installs the irradiation lamp on a rotating disk. When the rotating disk moves, it will synchronously drive the irradiation lamp to rotate slowly, so as to accurately adjust the irradiation angle. Since the irradiation lamp continuously adjusts the angle during the movement, it can ensure that the light column always irradiates the same position, which helps to quickly locate the installation position of the receiving mechanism without repeated debugging, significantly improves work efficiency, reduces positioning difficulty, and has a good use effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which:

[0037] Figure 1 This is a schematic structural diagram of a radar-based real-time bridge status monitoring device, system, and method according to the present invention;

[0038] Figure 2 This is a schematic diagram of the structure of a reciprocating motion mechanism in a real-time monitoring device, system, and method for bridge status based on radar deployment according to the present invention;

[0039] Figure 3 This is a schematic diagram of the sliding plate frame structure in a real-time monitoring device, system and method for bridge status based on radar deployment according to the present invention;

[0040] Figure 4 This is a schematic diagram of the gear seat structure in a radar-based bridge status real-time monitoring device, system, and method of the present invention;

[0041] Figure 5 This is a schematic diagram of the structure of a rotating disk in a real-time monitoring device, system, and method for bridge status based on radar deployment according to the present invention;

[0042] Figure 6 This is a schematic structural diagram of a wheel-type pressure detection mechanism in a radar-based bridge status real-time monitoring device, system, and method of the present invention;

[0043] Figure 7 This is a schematic structural diagram of a receiving mechanism in a radar-based bridge status real-time monitoring device, system, and method according to the present invention;

[0044] Figure 8 This is a schematic diagram of the structure of an illumination receiver in a radar-based bridge status real-time monitoring device, system, and method according to the present invention;

[0045] Figure 9 This is a system principle block diagram of a real-time bridge status monitoring device, system and method based on radar deployment in the present invention.

[0046] As shown in the figure:

[0047] 1. Clamping frame; 2. Bridge; 3. Leveling frame; 4. Loading plate frame; 5. Reciprocating motion mechanism; 6. Gear seat; 7. Wheel pressure detection mechanism; 8. Infrared rangefinder; 9. Rotating disk; 10. Triangular target; 11. Illumination lamp; 12. Receiving mechanism; 121. First camera; 122. Radar transmitter and receiver; 123. Illumination receiver; 124. Receiving housing; 125. Controller;

[0048] 51. Sliding plate frame; 52. First pulley; 53. Fixed seat; 54. Second pulley; 55. Transmission rope; 56. Drive motor; 61. First step surface; 62. Second step surface; 611. First tooth; 612. Second tooth; 71. Lifting shaft; 72. First spring; 73. Roller; 74. Positioning cylinder; 75. Pressure sensor; 81. Distance measuring housing; 82. First distance measuring sensor; 83. Second distance measuring sensor; 711. Detection slot;

[0049] 91. External drive gear disc; 101. Transmission shaft; 102. Internal drive gear disc; 103. Target base; 104. Detection rod; 1231. Grid plate; 1232. Photoelectric sensor; 1233. Color sensor; 1234. Second camera. DETAILED DESCRIPTION

[0050] The embodiments of the present invention are described in detail below. Examples of the embodiments 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 are not to be construed as limiting the present invention. On the contrary, the embodiments of the present invention include all variations, modifications, and equivalents that fall within the spirit and scope of the appended claims.

[0051] The following describes a radar-based real-time bridge status monitoring device, system, and method according to an embodiment of the present invention with reference to the accompanying drawings.

[0052] like Figures 1-9 As shown, a radar-based real-time bridge status monitoring device according to an embodiment of the present invention includes:

[0053] Clamping frame 1: symmetrically arranged on the bridge 2, with a horizontal adjustment frame 3 at its bottom;

[0054] The bearing plate frame 4 is vertically arranged on the two sets of horizontal adjustment frames 3 and parallel to the bridge 2. The two side surfaces of the bearing plate frame 4 are respectively provided with a reciprocating motion mechanism 5 and a gear holder 6. A rotating disk 9 is provided on one end surface of the reciprocating motion mechanism 5. One end of the rotating disk 9 passes through the other side surface of the bearing plate frame 4 and is meshed with the gear holder 6. The other end of the reciprocating motion mechanism 5 passes through the other side surface of the bearing plate frame 4 and is respectively provided with a wheel pressure detection mechanism 7 and an infrared rangefinder 8;

[0055] The triangular target 10 and the irradiation lamp 11 are respectively arranged on the rotating disk 9 and the surface of one end of the rotating disk 9 on the other side of the carrier plate frame 4, wherein one end of the triangular target 10 is meshed with the gear seat 6;

[0056] Receiving mechanism 12: includes a first camera 121, a radar transmitter-receiver 122 and a light receiver 123, which are sequentially arranged on the top of the receiving shell 124. The first camera 121, the radar transmitter-receiver 122 and the light receiver 123 are respectively connected to a controller 125 arranged on the inner wall of the receiving shell 124 through a bus system to realize data transmission and reception of control instructions. The reciprocating motion mechanism 5, the wheel pressure detection mechanism 7 and the infrared rangefinder 8 are respectively connected to the controller 125 through a wireless communication module to realize data transmission and reception of control instructions.

[0057] It should be noted that the controller 125 described in this embodiment is connected to the host computer via a wireless communication module to achieve data transmission and reception of control instructions.

[0058] It should also be noted that the reciprocating motion mechanism 5, wheel pressure detection mechanism 7 and infrared rangefinder 8 described in this embodiment are respectively powered by an external power supply of the bridge arranged at the bottom of the bridge 2, and the controller 125 is powered by a ground external power supply arranged on the ground.

[0059] It should also be noted that the controller 125 described in this embodiment also includes a buzzer (not shown in the figure). When the deflection value exceeds the preset range, the buzzer operates according to the instructions and issues a corresponding alarm prompt. The controller 125 is also connected to the alarm mechanism (not shown in the figure) provided on the bridge 2 through a wireless communication module to promptly remind pedestrians. The alarm mechanism includes warning lights and advertising screens, etc.

[0060] It is understandable that in order to facilitate observation of the light beam of the illumination lamp 11, the color of the light source needs to be adjusted, and a colored lampshade or a background board light device can be used to achieve the light source color adjustment.

[0061] Specifically, the present invention has a reasonable structure and adopts a variety of monitoring means, which effectively improves the accuracy and reliability of monitoring. By simplifying the installation process of the triangular target 10 and reducing the number of triangular targets 10 to be installed, not only the work efficiency is improved, but also the damage to the structure of the bridge 2 is significantly reduced. The present invention also has a rapid positioning function of the radar equipment, which further improves the monitoring efficiency. The present invention integrates multiple components such as a wheeled pressure detection mechanism 7, an infrared rangefinder 8, a triangular target 10, a radar transmitter and receiver 122, a detection rod 104, an irradiation lamp 11 and a light receiver 123. Among them, the wheeled pressure detection mechanism 7 monitors the pressure distribution at the bottom of the bridge 2 in real time and detects deflection changes in time; the infrared rangefinder 8 measures the pressure distribution at the bottom of the bridge 2 and detects the deflection changes in time; The height difference at the bottom of the beam 2 is measured, and combined with the height displacement data of the wheeled pressure detection mechanism 7, it assists in accurately judging the deflection value of the bridge 2; the triangular target 10 and the radar transmitter and receiver 122 adopt traditional radar detection technology, while the irradiation lamp 11 and the light receiver 123 assist in judging the deflection by detecting the irradiation position and area of ​​the light column; in particular, the triangular target 10 and the irradiation lamp 11 both include a detection rod 104, which contacts the bottom of the bridge 2 and adjusts its height synchronously with the change of deflection. The change in the height of the triangular target 10 affects the radar wave reception value, thereby judging the change in deflection; the change in the height of the irradiation lamp 11 affects the irradiation position and area of ​​the light column, and these changes are detected by the light receiver 123 to further confirm the deflection. , these components work together to realize diversified monitoring methods, significantly improve the accuracy and reliability of monitoring, and have excellent use effect; the present invention is equipped with innovative components such as a clamping frame 1, a horizontal adjustment frame 3, a bearing plate frame 4, a reciprocating motion mechanism 5, a gear seat 6 and a rotating disk 9. The clamping frame 1 is cleverly designed and is easy to be firmly connected to the bottom of the bridge 2 with minimal damage to the structure of the bridge 2. The horizontal adjustment frame 3 ensures that the bearing plate frame 4 remains parallel to the bottom of the bridge 2 after installation, which facilitates subsequent detection work. The combined design of the reciprocating motion mechanism 5, the gear seat 6 and the rotating disk 9 can not only enable the triangular target 10 to achieve linear movement, but also accurately adjust the angle at a preset position to ensure that the radar wave is accurately reflected. The design of a single group of triangular targets 10 has The invention effectively reduces the number of installations, reduces production costs and installation difficulty, and the linear movement method ensures the accuracy of installation and measurement. Due to the self-adjustment function of the angle, the step of manually adjusting the installation angle is eliminated, which not only ensures the accuracy of the angle, but also reduces labor intensity, improves installation efficiency, and has an excellent overall use effect. The present invention installs the irradiation lamp 11 on the rotating disk 9. When the rotating disk 9 moves, it will synchronously drive the irradiation lamp 11 to rotate slowly, so as to accurately adjust the irradiation angle. Since the irradiation lamp 11 continuously adjusts the angle during the movement, it can ensure that the light column always irradiates at the same position, which helps to quickly locate the installation position of the receiving mechanism 12 without repeated debugging, significantly improves work efficiency, reduces positioning difficulty, and has a good use effect.

[0062] Specifically, during use, the drive motor 56 in the reciprocating mechanism 5 receives a control instruction, starts and begins to operate stably. Driven by the drive motor 56, the sliding plate frame 51 in the reciprocating mechanism 5 moves smoothly along the length direction of the load-bearing plate frame 4. The wheeled pressure detection mechanism 7 moves synchronously with the sliding plate frame 51, and its top always maintains contact with the bottom of the bridge 2. By real-time monitoring of pressure changes, it is determined whether the deflection value of the bridge 2 has changed. The infrared rangefinder 8 also moves synchronously with the sliding plate frame 51. It assists in determining the deflection value of the bridge 2 by measuring the height difference with the bottom of the bridge 2 and combining the height displacement data of the wheeled pressure detection mechanism 7, thereby improving the accuracy of the detection. The rotating disk 9 moves synchronously with the sliding plate frame 51 and engages with the gear seat 6 during the movement. This connection method enables the rotating disk 9 to synchronously drive the irradiation lamp 11 to rotate slowly during movement, thereby accurately adjusting the irradiation angle. Since the irradiation lamp 11 continuously adjusts its angle during movement, it can ensure that the light always irradiates the same position, which helps to quickly locate the installation position of the receiving mechanism 12. The triangular target 10 moves synchronously with the rotating disk 9 , and intermittently engages with the gear holder 6 during movement. This design enables the triangular target 10 to automatically adjust its angle when moving to the set position, ensuring accurate reflection of the radar waves emitted by the radar transmitter and receiver 122 in the receiving mechanism 12, thereby improving the sensitivity and accuracy of detection. In order to more intuitively reflect the deflection changes of the bridge 2, the triangular target 10 and the irradiation lamp 11 also include detection rods 104. These detection rods 104 always maintain contact with the bottom of the bridge 2 during movement. When the deflection of the bridge 2 changes, the detection rods 104 will drive the triangular target 10 and the irradiation lamp 11 to change their installation height. The change in the installation height of the triangular target 10 will cause the value of the radar wave received by the radar transmitter and receiver 122 to change. By analyzing these values, the change in deflection can be determined. At the same time, the change in the installation height of the irradiation lamp 11 will also cause its irradiation area to change. The light receiver 123 in the receiving mechanism 12 can further confirm whether the deflection of the bridge 2 has changed by detecting changes in the illuminated position and illuminated area. This multiple detection method improves the accuracy and reliability of the deflection detection of the bridge 2.

[0063] In one embodiment of the present invention, Figure 2As shown, the reciprocating mechanism 5 includes a sliding plate frame 51, a first pulley 52, a fixed seat 53, a second pulley 54, a transmission rope 55 and a driving motor 56. The sliding plate frame 51 is horizontally slidably connected to the surface of one side of the load-bearing plate frame 4, and one end of the sliding plate frame 51 passes through the other side surface of the load-bearing plate frame 4, and is respectively provided with a wheel pressure detection mechanism 7 and an infrared rangefinder 8. The first pulley 52 is symmetrically connected to the upper end surface of the sliding plate frame 51, the fixed seat 53 is symmetrically fixedly connected to the surface of the load-bearing plate frame 4 and is located on the outside of the sliding plate frame 51, the second pulley 54 is symmetrically connected to the surface of the load-bearing plate frame 4 and is located on the top side of the fixed seat 53, the transmission rope 55 is respectively wound around the surfaces of the second pulley 54 and the first pulley 52, and is fixedly connected to the surface of the fixed seat 53, the driving motor 56 is fixedly connected to the other side surface of the load-bearing plate frame 4, and is fixedly connected to one end of the central axis of one group of second pulleys 54, and the driving motor 56 is connected to the controller 125 through a wireless communication module to realize data transmission and reception of control instructions.

[0064] It should be noted that the drive motor 56 described in this embodiment is also provided with an encoder (not shown in the figure). The encoder is connected to the controller 125 through a wireless communication module to realize data transmission and reception of control instructions. The encoder is used to detect the number of rotations of the drive motor 56 in real time. The position of the sliding plate frame 51 can be determined by the number of rotations data.

[0065] Specifically, the structure and connection relationship of the reciprocating motion mechanism 5 are further explained. The present device adopts a rope-type reciprocating mechanism. Compared with the screw-type reciprocating mechanism, the rope-type reciprocating mechanism has a lower production cost and is easier to install and use. By setting the reciprocating motion mechanism 5, the wheel pressure detection mechanism 7, the infrared rangefinder 8 and the rotating disk 9 are accurately moved and controlled, and the use effect is good.

[0066] When in use, the drive motor 56 operates according to the instructions, and the drive motor 56 synchronously drives one group of second pulleys 54 to rotate. The rotation of the second pulley 54 cooperates with the transmission rope 55, the first pulley 52 and the fixed seat 53, and synchronously drives the first pulley 52 and the sliding plate frame 51 to move. The movement of the sliding plate frame 51 synchronously drives the wheeled pressure detection mechanism 7, the infrared rangefinder 8 and the rotating disk 9 to move.

[0067] In one embodiment of the present invention, Figure 4 As shown, the tooth seat 6 is stepped, and the first step surface 61 and the second step surface 62 of the tooth seat 6 are respectively provided with a first tooth 611 and a second tooth 612. The first tooth 611 is intermittently arranged on the surface of the first step surface 61 and is meshed with one end of the triangular target 10. The second tooth 612 is evenly arranged on the surface of the second step surface 62 and is meshed with one end of the rotating disk 9 on the other side of the supporting plate frame 4.

[0068] Specifically, the structure and connection relationship of the tooth seat 6 are further explained. The tooth seat 6 is designed as a unique stepped structure, and its first step surface 61 and the second step surface 62 are staggered. This design cleverly facilitates the precise meshing connection with the triangular target 10 and one end of the rotating disk 9. On the first step surface 61, the first teeth 611 are carefully arranged in an intermittent manner. This intermittent setting ensures that the triangular target 10 will only mesh with the first teeth 611 when it reaches a set specific position during movement, thereby adjusting its angle. This design not only ensures the three The positional accuracy of the corner target 10 ensures the accuracy of its angle adjustment, effectively replacing manual operation, improving installation efficiency, and having excellent use effect. On the second step surface 62, the second teeth 612 are evenly and densely distributed. This uniform setting enables the rotating disk 9 to always maintain engagement with the second teeth 612 when moving with the sliding plate frame 51, thereby realizing the synchronous rotation of the rotating disk 9. This rotation mechanism enables the irradiation lamp 11 to achieve fine-tuning of the angle. By fine-tuning the angle, it is ensured that the irradiation lamp 11 can always irradiate the same position during the movement, thereby ensuring the consistency of the irradiation position.

[0069] In one embodiment of the present invention, Figure 6 As shown, the wheeled pressure detection mechanism 7 includes a lifting shaft 71, a first spring 72, a roller 73, a positioning cylinder 74 and a pressure sensor 75. The lifting shaft 71 is vertically slidably connected to the top of the sliding plate frame 51 that passes through the other side of the load-bearing plate frame 4, and is fixedly connected to the top of the sliding plate frame 51 with a first spring 72. A roller 73 is provided on the top of the lifting shaft 71 and is slidably connected to the bottom of the bridge 2. The bottom of the lifting shaft 71 passes through the interior of the sliding plate frame 51 and is slidably connected to the inner wall of the positioning cylinder 74 provided on the inner wall of the sliding plate frame 51. The pressure sensor 75 is provided on the inner wall of the positioning cylinder 74 and contacts the bottom of the lifting shaft 71. The pressure sensor 75 is connected to the controller 125 through a wireless communication module to realize data transmission and reception of control instructions.

[0070] Specifically, the structure and connection relationship of the wheeled pressure detection mechanism 7 are further explained. The wheeled pressure detection mechanism 7 can timely detect deflection changes by monitoring the pressure distribution at the bottom of the bridge 2 in real time, and provide timely data support for the health monitoring of the bridge 2 through precise measurement and wireless data transmission.

[0071] During use, when the wheeled pressure detection mechanism 7 is placed under the bridge 2 and moves, the roller 73 contacts the bottom of the bridge 2, generating pressure. The pressure is transmitted to the pressure sensor 75 through the lifting shaft 71. The pressure sensor 75 converts the pressure into an electrical signal, which is sent to the controller 125 through the wireless communication module. The controller 125 processes and analyzes the data. The controller 125 can determine the pressure distribution at the bottom of the bridge 2 based on the received data, providing an important basis for the health monitoring and maintenance of the bridge 2.

[0072] In one embodiment of the present invention, Figure 6 As shown, the infrared rangefinder 8 includes a ranging shell 81, a first ranging sensor 82 and a second ranging sensor 83. The ranging shell 81 is fixedly connected to the top of one end of the sliding plate frame 51 passing through the other side of the carrying plate frame 4. The first ranging sensor 82 is arranged on the top of the ranging shell 81, and the second ranging sensor 83 is arranged on the surface of one end of the ranging shell 81 passing through the interior of the sliding plate frame 51 and corresponding to the position of the lifting shaft 71. A detection groove 711 is opened at the surface of the lifting shaft 71 corresponding to the position of the second ranging sensor 83, and the depth of the detection groove 711 gradually increases from top to bottom. The first ranging sensor 82 and the second ranging sensor 83 are respectively connected to the controller 125 through a wireless communication module to realize data transmission and reception of control instructions.

[0073] Specifically, the structure and connection relationship of the infrared rangefinder 8 are further explained. The infrared rangefinder 8 realizes the accurate measurement of the deflection of the bridge 2 through the advantages of dual sensor design, reduced external environmental impact, improved measurement accuracy and strong adaptability.

[0074] The primary task of the first distance sensor 82 is to directly measure the height difference between the infrared rangefinder 8 and the bottom of the bridge 2. By continuously monitoring this height difference data, it is possible to analyze whether the deflection value of the bridge 2 has changed. Deflection is the vertical deformation of the bridge 2 under load, and changes in the height difference directly reflect changes in deflection. The second distance sensor 83 is located within the sliding plate frame 51 and is relatively enclosed to reduce the impact of external environmental factors on the sensor. When the first distance sensor 82 is affected by environmental factors and causes inaccurate measurements, the second distance sensor 83 provides auxiliary measurement. It indirectly measures the displacement of the lifting shaft 71 by detecting changes in the depth of the detection groove 711 on the lifting shaft 71. When the lifting shaft 71 moves, the depth value of the detection groove 711 changes. The second distance sensor 83 captures this change and converts it into displacement data. By analyzing this displacement data, it is possible to further determine whether the deflection value of the bridge 2 has changed. This, combined with the height difference data provided by the first distance sensor 82, enhances the accuracy and reliability of the measurement. The collaborative operation of the two sensors allows for more accurate measurement of the deflection value of the bridge 2, resulting in a more effective use case.

[0075] In one embodiment of the present invention, Figure 5 As shown, the rotating disk 9 is rotatably connected to the surface of the sliding plate frame 51, one end of the rotating disk 9 passes through the other side surface of the carrying plate frame 4, and is fixedly connected to the external drive gear disk 91, the external drive gear disk 91 is located on the top side of the second step surface 62 of the gear seat 6, the external drive gear disk 91 is meshed with the second teeth 612, and the surface of the mounting portion of the external drive gear disk 91 is slidably connected to the irradiation lamp 11;

[0076] The inner wall of the central axis of the rotating disk 9 is rotatably connected to the transmission shaft 101, and the rotating disk 9 passes through the surface of the central axis of the other side of the carrier plate frame 4 and is rotatably connected to the inner driving gear disc 102. The inner driving gear disc 102 is located on the inner side of the outer driving gear disc 91, and the inner driving gear disc 102 is located on the top side of the first step surface 61 of the tooth seat 6, and is meshed with the first tooth 611. One end of the transmission shaft 101 is connected to the inner driving gear disc 102, and the other end of the transmission shaft 101 passes through the outside of the rotating disk 9 and is fixedly connected to the target seat 103. The triangular target 10 is slidably connected to the surface of the target seat 103. One end of the triangular target 10 and one end of the irradiation lamp 11 respectively pass through the target seat 103 and the interior of the mounting portion, and are fixedly connected to the target seat 103 and the inner wall of the mounting portion with a second spring.

[0077] It should be noted that a damping ring is provided between the transmission shaft 101 described in this embodiment and the inner wall of the central axis of the rotating disk 9 . The damping ring is designed to effectively prevent the transmission shaft 101 from rotating.

[0078] Specifically, the structure and connection relationship of the rotating disk 9 are further explained. During the movement of the rotating disk 9, the outer drive gear disk 91 is engaged with the second teeth 612, so that the rotating disk 9 can rotate synchronously. The rotation of the rotating disk 9 drives the irradiation lamp 11 to rotate, thereby achieving fine-tuning of the angle of the irradiation lamp 11 and ensuring that the irradiation position always remains at the set position. At the same time, through the mutual cooperation of the transmission shaft 101, the inner drive gear disk 102, the target seat 103 and the first teeth 611, the triangular target 10 can automatically adjust the angle when the rotating disk 9 moves. After adjusting the angle at the preset position, the triangular target 10 can accurately reflect the radar waves emitted by the radar transmitter and receiver 122, ensuring the accuracy of the data. In addition, the second spring provides elasticity and buffering for the triangular target 10 and the irradiation lamp 11, so that they remain stable during the sliding process, and the use effect is excellent.

[0079] In one embodiment of the present invention, Figure 5 As shown, the triangular target 10 and the irradiation lamp 11 both include detection rods 104. One end of the two groups of detection rods 104 are in contact with the bottom of the bridge 2 respectively, and the other ends of the two groups of detection rods 104 pass through the target base 103 and the interior of the installation part respectively, and are fixedly connected to one end of the triangular target 10 and the irradiation lamp 11 passing through the target base 103 and the interior of the installation part.

[0080] It should be noted that the top of the detection rod 104 described in this embodiment is arc-shaped and is provided with a ball (not shown in the figure).

[0081] Specifically, the structure and connection relationship of the triangular target 10 and the irradiation lamp 11 are further explained. By setting the detection rod 104, the function of synchronously adjusting the installation height of the triangular target 10 and the irradiation lamp 11 as the deflection of the bridge 2 changes can be realized. When the deflection of the bridge 2 changes, the detection rod 104 can sense this change and adjust the installation height of the triangular target 10 and the irradiation lamp 11 accordingly. By comparing the data generated by the adjusted installation height with the data generated at a specific position (such as the position when the bridge 2 has not deflected), it can be determined whether the deflection of the bridge 2 has changed, and the use effect is good.

[0082] In one embodiment of the present invention, Figure 8 As shown, the light receiver 123 includes a grid plate 1231, a photoelectric sensor 1232, a color sensor 1233 and a second camera 1234. The grid plate 1231 is arranged on the top of the receiving shell 124, the photoelectric sensor 1232 and the color sensor 1233 are respectively arranged on the inner wall of the receiving shell 124, and are located on the bottom side of the grid plate 1231. The second camera 1234 is arranged on the inner wall of the receiving shell 124, and is located on the bottom side of the photoelectric sensor 1232 and the color sensor 1233. The photoelectric sensor 1232, the color sensor 1233 and the second camera 1234 are respectively connected to the controller 125 through the bus system to realize data transmission and reception of control instructions.

[0083] It should be noted that the controller 125 described in this embodiment has a built-in image processing algorithm module.

[0084] Specifically, the structure and connection relationship of the light receiver 123 are further explained. The light receiver 123 integrates the grid plate 1231, the photoelectric sensor 1232, the color sensor 1233 and the second camera 1234, and combines the connection between the bus system and the controller 125 to achieve comprehensive reception and processing of the light column intensity, color and visual information, and has a good use effect.

[0085] Among them, the grid plate 1231 is used to divide the area illuminated by the light column into multiple small grids, which is convenient for determining the specific position and area illuminated by the light column. When the light column is irradiated on the grid plate 1231, the illuminated grid area can be identified by the photoelectric sensor 1232 or the second camera 1234. The photoelectric sensor 1232 can detect the presence and intensity of light. When used in conjunction with the grid plate 1231, it can be used to determine which grids are illuminated by the light, thereby calculating the illumination position and approximate illumination area of ​​the light. The color sensor 1233 is used to detect the color of the light. The color sensor 1233 is placed in a position where it can receive the light illumination and measures the color of the reflected light or the transmitted light. To determine the color of the irradiated light, by cooperating with the photoelectric sensor 1232, the irradiation position and approximate irradiation area of ​​the light column can be further accurately determined. The second camera 1234 can capture the image of the light irradiation area and provide detailed visual information. Through the image processing algorithm, the second camera 1234 can be used to accurately determine the irradiation position, shape and area of ​​the light column. The controller 125 serves as the center for data processing and instruction reception. It is connected to the photoelectric sensor 1232, the color sensor 1233 and the second camera 1234 through the bus system. It is responsible for receiving the data from the sensors and executing the corresponding algorithms to process the data, thereby determining the irradiation position, area and color of the light, and has a good effect.

[0086] A real-time monitoring system for bridge status based on radar deployment is implemented by the above-mentioned real-time monitoring device for bridge status based on radar deployment.

[0087] A radar-based real-time bridge status monitoring method, applied to the above radar-based real-time bridge status monitoring device, includes the following steps:

[0088] S1: The driving motor 56 receives the control instruction, starts and begins to run stably;

[0089] S2: Driven by the driving motor 56, the sliding plate frame 51 moves smoothly along the length direction of the carrying plate frame 4;

[0090] S3: The wheeled pressure detection mechanism 7 moves synchronously with the sliding plate frame 51, and its top always keeps in contact with the bottom of the bridge 2. By monitoring the pressure change in real time, it is determined whether the deflection value of the bridge 2 changes;

[0091] S4: The infrared rangefinder 8 also moves synchronously with the sliding plate frame 51. It measures the height difference with the bottom of the bridge 2 and, combined with the height displacement data of the wheeled pressure detection mechanism 7, assists in determining the deflection value of the bridge 2, thereby improving the accuracy of the detection.

[0092] S5: The rotating disk 9 moves synchronously with the sliding plate frame 51 and is engaged with the gear holder 6 during the movement. This connection method enables the rotating disk 9 to synchronously drive the irradiation lamp 11 to rotate slowly during the movement, thereby accurately adjusting the irradiation angle. Since the irradiation lamp 11 continuously adjusts its angle during the movement, it can ensure that the light always shines at the same position, which helps to quickly locate the installation position of the receiving mechanism 12;

[0093] S6: The triangular target 10 moves synchronously with the rotating disk 9 and is intermittently engaged with the gear holder 6 during the movement. This design enables the triangular target 10 to automatically adjust its angle when moving to the set position, ensuring accurate reflection of the radar waves emitted by the radar transmitter and receiver 122, thereby improving the sensitivity and accuracy of detection;

[0094] S7: In order to more intuitively reflect the deflection changes of the bridge 2, the triangular target 10 and the illuminating light 11 also include detection rods 104 respectively. These detection rods 104 always maintain contact with the bottom of the bridge 2 during the movement. When the deflection of the bridge 2 changes, the detection rods 104 will drive the triangular target 10 and the illuminating light 11 to change the installation height. The change in the installation height of the triangular target 10 will cause the radar wave value received by the radar transmitter and receiver 122 to change. By analyzing these values, the change in deflection can be judged. At the same time, the change in the installation height of the illuminating light 11 will also cause its irradiation area to change. The illumination receiver 123 can further confirm whether the deflection of the bridge 2 has changed by detecting the changes in the illumination position and illumination area. This multiple detection method improves the accuracy and reliability of the deflection detection of the bridge 2.

[0095] In summary, the embodiment of the present invention is a real-time monitoring device, system and method for bridge status based on radar deployment. The present invention has a reasonable structure and adopts a variety of monitoring means to effectively improve the accuracy and reliability of monitoring. By simplifying the installation process of the triangular target 10 and reducing the number of triangular targets installed, it not only improves work efficiency, but also significantly reduces damage to the bridge 2 structure. The present invention also has a rapid positioning function of the radar equipment, which further improves the monitoring efficiency.

[0096] In the description of this specification, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include at least one of such features. In the description of the present invention, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.

[0097] In the description of this specification, the reference terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and features of different embodiments or examples without contradiction.

[0098] Although the embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are exemplary and are not to be construed as limitations on the present invention. A person skilled in the art may change, modify, replace and deform the above embodiments within the scope of the present invention.

Claims

1. A real-time monitoring device for bridge status based on radar deployment, characterized in that: include: A clamping frame (1) is symmetrically arranged on the bridge (2), and a horizontal adjustment frame (3) is arranged at the bottom thereof; The bearing plate frame (4) is vertically arranged on the two groups of horizontal adjustment frames (3) and is parallel to the bridge (2). The two side surfaces of the bearing plate frame (4) are respectively provided with a reciprocating motion mechanism (5) and a tooth seat (6). A rotating disk (9) is provided on one end surface of the reciprocating motion mechanism (5). One end of the rotating disk (9) passes through the other side surface of the bearing plate frame (4) and is meshed with the tooth seat (6). The other end of the reciprocating motion mechanism (5) passes through the other side surface of the bearing plate frame (4) and is respectively provided with a wheel pressure detection mechanism (7) and an infrared rangefinder (8). A triangular target (10) and an irradiation lamp (11) are respectively arranged on the rotating disk (9) and the surface of one end of the rotating disk (9) on the other side of the carrier plate frame (4), wherein one end of the triangular target (10) is meshedly connected with the gear seat (6); The receiving mechanism (12) comprises a first camera (121), a radar transmitter-receiver (122) and a light receiver (123) which are sequentially arranged on the top of the receiving housing (124); the first camera (121), the radar transmitter-receiver (122) and the light receiver (123) are respectively connected to a controller (125) arranged on the inner wall of the receiving housing (124) via a bus system to achieve data transmission and control instruction reception; the reciprocating mechanism (5), the wheel pressure detection mechanism (7) and the infrared rangefinder (8) are respectively connected to the controller (125) via a wireless communication module to achieve data transmission and control instruction reception; The reciprocating motion mechanism (5) includes a sliding plate frame (51), a first pulley (52), a fixed seat (53), a second pulley (54), a transmission rope (55) and a driving motor (56). The sliding plate frame (51) is horizontally slidably connected to the surface of one side of the load-bearing plate frame (4). One end of the sliding plate frame (51) passes through the other side of the load-bearing plate frame (4) and is respectively provided with a wheel pressure detection mechanism (7) and an infrared rangefinder (8). The first pulley (52) is symmetrically rotated and connected to the upper end surface of the sliding plate frame (51). The fixed seat (53) is symmetrically fixedly connected to the surface of the load-bearing plate frame (4) and is located at the On the outside of the sliding plate frame (51), the second pulley (54) is symmetrically connected to the surface of the bearing plate frame (4) and is located on one side of the top of the fixed seat (53). The transmission rope (55) is respectively wound around the surface of the second pulley (54) and the first pulley (52) and is fixedly connected to the surface of the fixed seat (53). The driving motor (56) is fixedly connected to the other side surface of the bearing plate frame (4) and is fixedly connected to one end of the central axis of one group of the second pulleys (54). The driving motor (56) is connected to the controller (125) through a wireless communication module to realize data transmission and reception of control instructions. The wheeled pressure detection mechanism (7) includes a lifting shaft (71), a first spring (72), a roller (73), a positioning cylinder (74) and a pressure sensor (75). The lifting shaft (71) is vertically slidably connected to the top of one end of the sliding plate frame (51) passing through the other side of the load-bearing plate frame (4), and is fixedly connected to the top of the sliding plate frame (51). A roller (73) is provided on the top of the lifting shaft (71) and is slidably connected to the bottom of the bridge (2). The bottom of the lifting shaft (71) passes through the interior of the sliding plate frame (51) and is slidably connected to the inner wall of the positioning cylinder (74) provided on the inner wall of the sliding plate frame (51). The pressure sensor (75) is provided on the inner wall of the positioning cylinder (74) and contacts the bottom of the lifting shaft (71). The pressure sensor (75) is connected to the controller (125) through a wireless communication module to realize data transmission and reception of control instructions. The infrared rangefinder (8) comprises a rangefinder housing (81), a first rangefinder sensor (82) and a second rangefinder sensor (83). The rangefinder housing (81) is fixedly connected to the top of one end of the sliding plate frame (51) passing through the other side of the bearing plate frame (4). The first rangefinder sensor (82) is arranged on the top of the rangefinder housing (81). The second rangefinder sensor (83) is arranged on the surface of one end of the rangefinder housing (81) passing through the interior of the sliding plate frame (51) and corresponding to the position of the lifting shaft (71). A detection groove (711) is opened at the position corresponding to the position of the second rangefinder sensor (83). The depth of the detection groove (711) gradually increases from top to bottom. The first rangefinder sensor (82) and the second rangefinder sensor (83) are respectively connected to the controller (125) through a wireless communication module to realize data transmission and control instruction reception.

2. The radar-based real-time bridge status monitoring device according to claim 1 is characterized in that: The tooth seat (6) is stepped, and the first step surface (61) and the second step surface (62) of the tooth seat (6) are respectively provided with a first tooth (611) and a second tooth (612), wherein the first tooth (611) is intermittently provided on the surface of the first step surface (61) and is meshedly connected with one end of the triangular target (10), and the second tooth (612) is evenly provided on the surface of the second step surface (62) and is meshedly connected with one end of the rotating disk (9) that passes through the other side of the carrier plate frame (4).

3. The radar-based real-time bridge status monitoring device according to claim 2 is characterized in that: The rotating disk (9) is rotatably connected to the surface of the sliding plate frame (51), one end of the rotating disk (9) passes through the other side surface of the bearing plate frame (4), and is fixedly connected to an external driving toothed disk (91), the external driving toothed disk (91) is located on one side of the top of the second stepped surface (62) of the tooth seat (6), the external driving toothed disk (91) is meshed with the second tooth (612), and the surface of the mounting portion of the external driving toothed disk (91) is slidably connected to an irradiation lamp (11); The inner wall of the central axis of the rotating disk (9) is rotatably connected to a transmission shaft (101); the rotating disk (9) passes through the central axis of the other side surface of the carrier plate frame (4) and is rotatably connected to an inner driving toothed disk (102); the inner driving toothed disk (102) is located on the inner side of the outer driving toothed disk (91); the inner driving toothed disk (102) is located on the top side of the first step surface (61) of the tooth seat (6) and is meshed with the first tooth (611); one end of the transmission shaft (101) is connected to the inner driving toothed disk (102); the other end of the transmission shaft (101) passes through the outside of the rotating disk (9) and is fixedly connected to a target seat (103); the triangular target (10) is slidably connected to the surface of the target seat (103); one end of the triangular target (10) and one end of the irradiation lamp (11) respectively pass through the target seat (103) and the inside of the mounting portion, and a second spring is fixedly connected between the target seat (103) and the inner wall of the mounting portion.

4. The radar-based real-time bridge status monitoring device according to claim 3 is characterized by: The triangular target (10) and the irradiation lamp (11) both include detection rods (104), one end of the two groups of detection rods (104) respectively contacts the bottom of the bridge (2), and the other ends of the two groups of detection rods (104) respectively penetrate into the target base (103) and the interior of the mounting portion, and are fixedly connected to one end of the triangular target (10) and the irradiation lamp (11) that penetrate into the target base (103) and the interior of the mounting portion.

5. The radar-based real-time bridge status monitoring device according to claim 1 is characterized in that: The light receiver (123) comprises a grid plate (1231), a photoelectric sensor (1232), a color sensor (1233) and a second camera (1234); the grid plate (1231) is arranged on the top of the receiving shell (124); the photoelectric sensor (1232) and the color sensor (1233) are respectively arranged on the inner wall of the receiving shell (124) and located on one side of the bottom of the grid plate (1231); the second camera (1234) is arranged on the inner wall of the receiving shell (124) and located on one side of the bottom of the photoelectric sensor (1232) and the color sensor (1233); the photoelectric sensor (1232), the color sensor (1233) and the second camera (1234) are respectively connected to the controller (125) via a bus system to realize data transmission and reception of control instructions.

6. A real-time monitoring system for bridge status based on radar deployment, characterized in that: The system is implemented by a radar-based real-time bridge status monitoring device as described in any one of claims 1 to 5.

7. A real-time monitoring method for bridge status based on radar deployment, characterized in that: A radar-based real-time bridge status monitoring device as described in any one of claims 1 to 5 comprises the following steps: S1: The driving motor (56) receives a control instruction, starts and begins stable operation; S2: driven by the driving motor (56), the sliding plate frame (51) moves smoothly along the length direction of the carrying plate frame (4); S3: The wheeled pressure detection mechanism (7) moves synchronously with the sliding plate frame (51), and its top always keeps contact with the bottom of the bridge (2). By monitoring the pressure change in real time, it is determined whether the deflection value of the bridge (2) changes; S4: The infrared rangefinder (8) also moves synchronously with the sliding plate frame (51). It helps determine the deflection value of the bridge (2) by measuring the height difference with the bottom of the bridge (2) and combining the height displacement data of the wheel-type pressure detection mechanism (7), thereby improving the accuracy of the detection; S5: The rotating disk (9) moves synchronously with the sliding plate frame (51) and is meshed with the gear seat (6) during the movement. This connection method enables the rotating disk (9) to synchronously drive the irradiation lamp (11) to rotate slowly during the movement, thereby accurately adjusting the irradiation angle. Since the irradiation lamp (11) continuously adjusts its angle during the movement, it can ensure that the light always irradiates the same position, which helps to quickly locate the installation position of the receiving mechanism (12); S6: The triangular target (10) moves synchronously with the rotating disk (9) and is intermittently engaged with the gear seat (6) during the movement. This design enables the triangular target (10) to automatically adjust its angle when moving to a set position, ensuring accurate reflection of the radar wave emitted by the radar transmitter and receiver (122), thereby improving the sensitivity and accuracy of detection; S7: In order to more intuitively reflect the change in the deflection of the bridge (2), the triangular target (10) and the irradiation lamp (11) further include detection rods (104), which always maintain contact with the bottom of the bridge (2) during movement. When the deflection of the bridge (2) changes, the detection rods (104) will drive the triangular target (10) and the irradiation lamp (11) to change their installation heights. The change in the installation height of the triangular target (10) will cause the radar wave values ​​received by the radar transmitter and receiver (122) to change. By analyzing these values, the change in deflection can be determined. At the same time, the change in the installation height of the irradiation lamp (11) will also cause its irradiation area to change. The illumination receiver (123) can further confirm whether the deflection of the bridge (2) has changed by detecting changes in the illumination position and illumination area. This multiple detection method improves the accuracy and reliability of the deflection detection of the bridge (2).

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