Radar deployment-based bridge state real-time monitoring equipment, system and method

Abstract

The invention relates to the technical field of bridge deflection monitoring equipment, in particular to a bridge state real-time monitoring device, system and method based on radar deployment. A reciprocating motion mechanism and a tooth holder are arranged on the surfaces of the two sides of the bearing plate frame respectively, and the other end of the reciprocating motion mechanism penetrates through the surface of the other side of the bearing plate frame and is provided with a wheel type pressure detection mechanism and an infrared distance meter respectively; the triangular target and the irradiation lamp are respectively arranged on the rotating disc and the surface of one end, penetrating through the other side of the bearing plate frame, of the rotating disc. The structure is reasonable, diversified monitoring means are adopted, the monitoring accuracy and reliability are effectively improved, the installation process of the triangular targets is simplified, the installation number of the triangular targets is reduced, the working efficiency is improved, damage to a bridge structure is remarkably reduced, the rapid positioning function of radar equipment is achieved, and the monitoring accuracy and reliability are improved. And the monitoring efficiency is further improved.

Description

Technical Field

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

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

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

[0004] However, there are some obvious problems when using this traditional radar monitoring device. First, the detection means are relatively single, mainly relying on the reflection of radar waves and triangular targets to obtain bridge condition information, lacking other auxiliary means to improve the accuracy and reliability of monitoring; second, the installation process of triangular targets is relatively cumbersome, requiring multiple precise positioning and fixation at the bottom of the bridge, which not only increases the installation difficulty, but also may cause certain damage to the bridge structure; finally, the positioning of the radar device is not convenient enough, usually requiring complex adjustment and calibration on the ground to ensure that the radar waves can accurately irradiate the triangular targets, which greatly reduces the monitoring efficiency. Summary of the Invention

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

[0006] To this end, the object of the present invention is to provide a real-time bridge condition monitoring device, system and method based on radar deployment. The structure of the present invention is reasonable, adopting diversified monitoring means, effectively improving the accuracy and reliability of monitoring. By simplifying the installation process of triangular targets and reducing the number of installed triangular targets, not only the work efficiency is improved, but also the damage to the bridge structure is significantly reduced. The present invention also has the function of quickly positioning the radar device, further improving the monitoring efficiency.

[0007] To achieve the above object, the present invention provides a real-time bridge condition monitoring device based on radar deployment, including:

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

[0009] Load-bearing plate frame: vertically arranged on two groups of the horizontal adjusting frames and parallel to the bridge. Reciprocating motion mechanisms and tooth seats are respectively provided on both side surfaces of the load-bearing plate frame. A rotating disk is provided on one end surface of the reciprocating motion mechanism. One end of the rotating disk penetrates through the other side surface of the load-bearing plate frame and is meshed and connected with the tooth seat. The other end of the reciprocating motion mechanism penetrates through the other side surface of the load-bearing plate frame and is respectively provided with a wheel type pressure detection mechanism and an infrared rangefinder;

[0010] Triangular target and irradiation lamp: respectively provided on the rotating disk and one end surface of the rotating disk penetrating through the other side of the load-bearing plate frame. Among them, one end of the triangular target is meshed and connected with the tooth seat;

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

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

[0013] Specifically, the reciprocating motion mechanism includes a sliding plate frame, a first pulley, a fixed seat, a second pulley, a transmission rope, and a driving motor. The sliding plate frame is horizontally slidably connected to one side surface of the load-bearing plate frame. One end of the sliding plate frame penetrates through the other side surface of the load-bearing plate frame and is respectively provided with a wheel type pressure detection mechanism and an infrared rangefinder. The first pulleys are symmetrically rotatably connected to the upper end surface of the sliding plate frame. The fixed seats are symmetrically fixedly connected to the surface of the load-bearing plate frame and are located outside the sliding plate frame. The second pulleys are symmetrically rotatably connected to the surface of the load-bearing plate frame and are located on one side of the top of the fixed seats. The transmission ropes are respectively wound around the surfaces of the second pulleys and the first pulleys and are fixedly connected to the surface of the fixed seats. The driving motor is fixedly connected to the other side surface of the load-bearing plate frame and is fixedly connected to one end of the central axis of one group of the second pulleys. The driving motor is connected to the controller through a wireless communication module to realize data transmission and receipt of control instructions.

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

[0015] Specifically, the wheel-type pressure detection mechanism includes a lifting shaft, a first spring, a roller, a positioning cylinder and a pressure sensor. The lifting shaft is vertically and slidably connected to the top of the other end of the sliding plate frame passing through the bearing plate frame, and a first spring is fixedly connected between the lifting shaft and the top of the sliding plate frame. A roller is arranged at the top of the lifting shaft and is slidably connected with the bottom of the bridge. The bottom of the lifting shaft penetrates into the interior of the sliding plate frame and is slidably connected with the inner wall of the positioning cylinder arranged on the inner wall of the sliding plate frame. The pressure sensor is arranged on the inner wall of the positioning cylinder and is in contact 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 receipt of control instructions.

[0016] Specifically, the infrared rangefinder includes a ranging housing, a first ranging sensor and a second ranging sensor. The ranging housing is fixedly connected to the top of the other end of the sliding plate frame passing through the bearing plate frame. The first ranging sensor is arranged on the top of the ranging housing. The second ranging sensor is arranged on the surface of the end of the ranging housing penetrating into the interior of the sliding plate frame and corresponds to the position of the lifting shaft. A detection groove is formed at the position corresponding to the second ranging sensor on the surface of the lifting shaft, 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 receipt 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 penetrates through the other surface of the bearing plate frame and is fixedly connected with an external drive gear disk. The external drive gear disk is located on one side of the top of the second stepped surface of the tooth base. The external drive gear disk is meshed with the second teeth. A lighting lamp is slidably connected to the surface of the mounting part of the external drive gear disk.

[0018] A drive shaft is rotatably connected to the inner wall of the central axis of the rotating disk. One end surface of the central axis passing through the other side surface of the bearing plate frame of the rotating disk is rotatably connected to an inner drive gear disk. The inner drive gear disk is located inside the outer drive gear disk. The inner drive gear disk is located on one side of the top of the first stepped surface of the tooth seat and is meshed and connected with the first tooth. One end of the drive shaft is connected to the inner drive gear disk. The other end of the drive shaft penetrates outside the rotating disk and is fixedly connected to a target seat. The triangular target is slidably connected to the surface of the target seat. One end of the triangular target and one end of the irradiation lamp respectively penetrate into the target seat and the installation part, and a second spring is fixedly connected between the target seat and the inner wall of the installation part.

[0019] Specifically, both the triangular target and the irradiation lamp include detection rods. One end of each of the two detection rods is in contact with the bottom of the bridge respectively. The other ends of the two detection rods respectively penetrate into the target seat and the installation part, and are fixedly connected to the ends of the triangular target and the irradiation lamp penetrating into the target seat and the installation 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 are located on one side of the bottom of the grid plate. The second camera is arranged on the inner wall of the receiving shell and is located on one side of the bottom of the photoelectric sensor and the color sensor. The photoelectric sensor, the color sensor and the second camera are respectively connected to the controller through a bus system to realize data transmission and receipt of control instructions.

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

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

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

[0024] S2: Driven by the drive motor, the sliding plate frame moves smoothly along the length direction of the bearing plate frame.

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

[0026] S4: The infrared rangefinder also moves synchronously with the sliding plate frame. By measuring the height difference from the bottom of the bridge and combining the height displacement data of the wheel pressure detection mechanism, it assists in judging the deflection value of the bridge, improving the accuracy of detection;

[0027] S5: The rotating disk moves synchronously with the sliding plate frame and meshes with the tooth seat during the movement. This connection method enables the rotating disk to drive the irradiation lamp to rotate slowly synchronously when moving, thereby precisely adjusting the irradiation angle. Since the irradiation lamp continuously adjusts the angle during the movement, it can ensure that the light always irradiates at 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 intermittently meshes with the tooth seat during the movement. This design enables the triangular target to automatically adjust the angle when moving to the set position, ensuring precise reflection of the radar waves emitted by the radar transmitter-receiver and improving the sensitivity and accuracy of detection;

[0029] S7: To more intuitively reflect the deflection change of the bridge, the triangular target and the irradiation lamp also respectively include detection rods. These detection rods always keep in contact with the bottom of the bridge during the movement. When the deflection of the bridge changes, the detection rods will drive the triangular target and the irradiation 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-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 irradiation lamp will also cause the change in its irradiation area. The light receiver can further confirm whether the deflection of the bridge has changed by detecting the change in the light position and light 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 given in part in the following description, become apparent in part from the following description, or be learned through the practice of the present invention.

[0031] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0032] 1. The structure of the present invention is reasonable. By adopting diversified monitoring means, it effectively improves the accuracy and reliability of monitoring. By simplifying the installation process of the triangular target and reducing the number of installed triangular targets, not only the work efficiency is improved, but also the damage to the bridge structure is significantly reduced. The present invention also has the function of quickly positioning the radar equipment, further improving the monitoring efficiency;

[0033] 2. The present invention integrates multiple components such as a wheel-type pressure detection mechanism, an infrared rangefinder, a triangular target, a radar transceiver, a detection rod, an irradiation lamp, and a light receiver. Among them, the wheel-type pressure detection mechanism monitors the pressure distribution at the bottom of the bridge in real time to promptly detect deflection changes; the infrared rangefinder measures the height difference from the bottom of the bridge and combines with the height displacement data of the wheel-type pressure detection mechanism to assist in accurately judging the deflection value of the bridge; the triangular target and the radar transceiver adopt traditional radar detection technology, while the irradiation lamp and the light receiver assist in judging the deflection by detecting the irradiation position and area of the light column; in particular, both the triangular target and the irradiation lamp include a detection rod that contacts the bottom of the bridge and synchronously adjusts its height with the change of deflection. The change in the height of the triangular target affects the received radar wave value, thereby judging the deflection change; the change in the height of the irradiation lamp affects the irradiation position and area of the light column, and these changes are detected by the light receiver to further confirm the deflection. These components work together to achieve diverse monitoring means, significantly improving the accuracy and reliability of monitoring, and having excellent use effects;

[0034] 3. The present invention is equipped with innovative components such as a clamping frame, a horizontal adjustment frame, a bearing plate frame, a reciprocating motion mechanism, a tooth seat, and a rotating disk. The clamping frame is ingeniously designed, easy to be firmly connected to the bottom of the bridge, and causes minimal damage to the bridge structure. The horizontal adjustment frame ensures that the bearing plate frame is parallel to the bottom of the bridge after installation, facilitating subsequent detection work. The combined design of the reciprocating motion mechanism, the tooth seat, and the rotating disk can not only make the triangular target move linearly but also precisely adjust the angle at a preset position to ensure accurate reflection of radar waves. The design of a single set of triangular targets effectively reduces the installation quantity, lowers the production cost and installation difficulty. The linear movement method ensures the accuracy of installation and measurement. Due to the angle self-adjustment function, the step of manually adjusting the installation angle is omitted, which not only ensures the accuracy of the angle but also reduces the labor intensity and improves the installation efficiency, with excellent overall use effects;

[0035] 4. The present invention installs the irradiation lamp on the rotating disk, and the rotating disk will synchronously drive the irradiation lamp to slowly rotate when moving, thereby precisely adjusting the irradiation angle. Since the irradiation lamp continuously adjusts the angle during 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, eliminating the need for repeated debugging, significantly improving the work efficiency, and reducing the positioning difficulty, with good use effects. BRIEF DESCRIPTION OF THE DRAWINGS

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

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

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

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

[0040] Figure 4 Schematic diagram of the tooth seat in a bridge condition real-time monitoring device, system and method based on radar deployment according to the present invention;

[0041] Figure 5 Schematic diagram of the rotating disk in a bridge condition real-time monitoring device, system and method based on radar deployment according to the present invention;

[0042] Figure 6 Schematic diagram of the wheel type pressure detection mechanism in a bridge condition real-time monitoring device, system and method based on radar deployment according to the present invention;

[0043] Figure 7 Schematic diagram of the receiving mechanism in a bridge condition real-time monitoring device, system and method based on radar deployment according to the present invention;

[0044] Figure 8 Schematic diagram of the light receiver in a bridge condition real-time monitoring device, system and method based on radar deployment according to the present invention;

[0045] Figure 9 System principle block diagram of a bridge condition real-time monitoring device, system and method based on radar deployment according to the present invention.

[0046] As shown in the figure:

[0047] 1. Clamping frame; 2. Bridge; 3. Horizontal adjustment frame; 4. Bearing plate frame; 5. Reciprocating motion mechanism; 6. Tooth seat; 7. Wheel type pressure detection mechanism; 8. Infrared rangefinder; 9. Rotating disk; 10. Triangular target; 11. Illuminating lamp; 12. Receiving mechanism; 121. First camera; 122. Radar transmitter-receiver; 123. Light receiver; 124. Receiving housing; 125. Controller;

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

[0049] 91. Outer drive gear disc; 101. Transmission shaft; 102. Inner drive gear disc; 103. Target seat; 104. Detection rod; 1231. Grid plate; 1232. Photoelectric sensor; 1233. Color sensor; 1234. Second camera. Detailed implementation manners

[0050] The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are intended to explain the present invention, and should not be construed as a limitation to the present invention. On the contrary, the embodiments of the present invention include all changes, modifications and equivalents falling within the spirit and connotation of the appended claims.

[0051] A real-time bridge state monitoring device, system and method based on radar deployment according to an embodiment of the present invention will be described below with reference to the drawings.

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

[0053] Clamping frame 1: symmetrically arranged on bridge 2, and a horizontal adjusting frame 3 is arranged at its bottom;

[0054] Carrier plate frame 4: vertically arranged on two groups of horizontal adjusting frames 3 and parallel to bridge 2. Reciprocating motion mechanisms 5 and tooth seats 6 are respectively arranged on both side surfaces of carrier plate frame 4. A rotating disk 9 is arranged on one end surface of reciprocating motion mechanism 5. One end of rotating disk 9 penetrates through the other side surface of carrier plate frame 4 and is meshed with tooth seat 6. The other end of reciprocating motion mechanism 5 penetrates through the other side surface of carrier plate frame 4 and is respectively provided with a wheel type pressure detection mechanism 7 and an infrared rangefinder 8;

[0055] Triangular target 10 and irradiation lamp 11: respectively arranged on rotating disk 9 and one end surface of rotating disk 9 penetrating through the other side surface of carrier plate frame 4. Among them, one end of triangular target 10 is meshed with tooth seat 6;

[0056] Receiving mechanism 12: includes a first camera 121, a radar transceiver 122 and a light receiver 123 sequentially arranged on the top of receiving housing 124. The first camera 121, the radar transceiver 122 and the light receiver 123 are respectively connected to a controller 125 arranged on the inner wall of receiving housing 124 through a bus system to realize data transmission and reception of control instructions. The reciprocating motion mechanism 5, the wheel type 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 through a wireless communication module to achieve data transmission and receipt of control instructions.

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

[0059] It should further be noted that the controller 125 described in this embodiment further includes a buzzer (not shown in the figure). When the deflection value exceeds the preset range value, the buzzer operates according to the instruction and emits a corresponding alarm prompt. The controller 125 is also connected to an alarm mechanism (not shown in the figure) provided on the bridge 2 through a wireless communication module for timely reminding pedestrians to pay attention. The alarm mechanism includes a warning light and an advertising screen, etc.

[0060] It can be understood that in order to facilitate observing the light column of the irradiation lamp 11, it is necessary to adjust the color of the light source, and a color lamp shade or a background board lamp device can be used to achieve the adjustment of the light source color.

[0061] Specifically, the structure of the present invention is reasonable, adopting diversified monitoring means, effectively improving the accuracy and reliability of monitoring. By simplifying the installation process of the triangular target 10 and reducing the installation quantity of the triangular target 10, not only the working efficiency is improved, but also the damage to the structure of the bridge 2 is significantly reduced. The present invention also has the rapid positioning function of the radar device, further improving 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-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 to timely detect deflection changes; the infrared rangefinder 8 measures the height difference from the bottom of the bridge 2 and, in combination with the height displacement data of the wheeled pressure detection mechanism 7, assists in accurately judging the deflection value of the bridge 2; the triangular target 10 and the radar transmitter-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; particularly, both the triangular target 10 and the irradiation lamp 11 include a detection rod 104, and the detection rod 104 contacts the bottom of the bridge 2 and synchronously adjusts the height with the change of the deflection. The change in the height of the triangular target 10 affects the radar wave reception value, thereby judging the deflection change; the change in the height of the irradiation lamp 11 affects the irradiation position and area of the light column, and the light receiver 123 detects these changes to further confirm the deflection. These components work together to achieve diversified monitoring means, significantly improving the accuracy and reliability of monitoring, and having an excellent use effect; the present invention is equipped with innovative components such as a clamping bracket 1, a horizontal adjustment bracket 3, a bearing plate bracket 4, a reciprocating motion mechanism 5, a tooth seat 6, and a rotating disk 9. The clamping bracket 1 is ingeniously designed, easy to be firmly connected to the bottom of the bridge 2, and has extremely little damage to the structure of the bridge 2. The horizontal adjustment bracket 3 ensures that the bearing plate bracket 4 is parallel to the bottom of the bridge 2 after installation, providing convenience for subsequent detection work. The combined design of the reciprocating motion mechanism 5, the tooth seat 6, and the rotating disk 9 can not only make the triangular target 10 move linearly, but also accurately adjust the angle at a preset position to ensure accurate reflection of radar waves. The design of a single set of triangular target 10 effectively reduces the installation quantity, reduces the production cost and installation difficulty. The linear movement mode ensures the accuracy of installation and measurement. Due to the angle self-adjustment function, the step of manually adjusting the installation angle is omitted, which not only ensures the accuracy of the angle, but also reduces the labor intensity and improves the installation efficiency, and the overall use effect is excellent; the present invention installs the irradiation lamp 11 on the rotating disk 9, and the rotating disk 9 will synchronously drive the irradiation lamp 11 to slowly rotate when moving, thereby accurately adjusting 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 improving the working efficiency and reducing the positioning difficulty, and having a good use effect.

[0062] Specifically, during use, the drive motor 56 in the reciprocating motion 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 motion mechanism 5 moves smoothly along the length direction of the bearing plate frame 4. The wheel-type 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 monitoring the pressure change in real time, it is judged whether the deflection value of the bridge 2 has changed. The infrared rangefinder 8 also moves synchronously with the sliding plate frame 51. It measures the height difference from the bottom of the bridge 2 and, combined with the height displacement data of the wheel-type pressure detection mechanism 7, assists in judging the deflection value of the bridge 2 to improve the detection accuracy. The rotating disk 9 moves synchronously with the sliding plate frame 51 and is meshed and connected with the tooth seat 6 during the movement. This connection method enables the rotating disk 9 to drive the irradiation lamp 11 to rotate slowly synchronously when moving, so as to accurately adjust the irradiation angle. Since the irradiation angle of the irradiation lamp 11 is continuously adjusted during the movement, it can ensure that the light always irradiates at 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 is intermittently meshed and connected with the tooth seat 6 during the movement. This design enables the triangular target 10 to automatically adjust the angle when moving to the set position, ensuring accurate reflection of the radar wave emitted by the radar transmitter-receiver 122 in the receiving mechanism 12, and improving the detection sensitivity and accuracy. In order to more intuitively reflect the deflection change of the bridge 2, the triangular target 10 and the irradiation lamp 11 also respectively include detection rods 104. 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 irradiation lamp 11 to change the 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-receiver 122 to change. By analyzing these values, the change in the deflection can be judged. At the same time, the change in the installation height of the irradiation lamp 11 will also cause the change in its irradiation area. The light receiver 123 in the receiving mechanism 12 can further confirm whether the deflection of the bridge 2 has changed by detecting the change in the light position and the light area. This multiple detection method improves the accuracy and reliability of the deflection detection of the bridge 2.

[0063] In an embodiment of the present invention, as Figure 2As shown in the figure, 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 and slidably connected to one side surface of the bearing plate frame 4. One end of the sliding plate frame 51 penetrates through the other side surface of the bearing plate frame 4, and a wheel type pressure detection mechanism 7 and an infrared rangefinder 8 are respectively arranged. The first pulleys 52 are symmetrically and rotatably connected to the upper surface of the sliding plate frame 51. The fixed seats 53 are symmetrically and fixedly connected to the surface of the bearing plate frame 4 and are located outside the sliding plate frame 51. The second pulleys 54 are symmetrically and rotatably connected to the surface of the bearing plate frame 4 and are located on one side of the top 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 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.

[0064] It should be noted that an encoder (not shown in the figure) is further provided on the driving motor 56 described in this embodiment. 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 rotation turns of the driving motor 56 in real time, and the position of the sliding plate frame 51 can be judged through the rotation turn number data.

[0065] Specifically, the structure and connection relationship of the reciprocating motion mechanism 5 are further described. The device adopts a rope type reciprocating mechanism. Compared with a lead screw type reciprocating mechanism, the rope type reciprocating mechanism has lower production cost and is more convenient for installation and use. By setting the reciprocating motion mechanism 5, precise movement and control of the wheel type pressure detection mechanism 7, the infrared rangefinder 8 and the rotating disk 9 are realized, and the use effect is good.

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

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

[0068] Specifically, the structure and connection relationship of the tooth seat 6 will be further described. The tooth seat 6 is designed into a unique stepped structure, and its first stepped surface 61 and second stepped surface 62 are arranged in a staggered manner. Such a design ingeniously facilitates the precise meshing connection with one end of the triangular target 10 and the rotating disk 9. On the first stepped surface 61, the first teeth 611 are carefully arranged in an intermittent manner. This intermittent setting ensures that during the movement of the triangular target 10, it will only mesh with the first teeth 611 when it reaches a set specific position, thereby adjusting its angle. Such a design not only ensures the position accuracy of the triangular target 10 but also ensures the accuracy of its angle adjustment, effectively replacing manual operation, improving the installation efficiency, and having an extremely excellent use effect. On the second stepped surface 62, the second teeth 612 are evenly distributed. This even setting enables the rotating disk 9 to always mesh with the second teeth 612 when moving along 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 angle adjustment, and by fine-tuning the angle, it ensures that the irradiation lamp 11 can always irradiate at the same position during the movement, guaranteeing the consistency of the irradiation position.

[0069] In an embodiment of the present invention, as Figure 6 shown, the wheel-type 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 that penetrates through the other side of the bearing plate frame 4, and a first spring 72 is fixedly connected between the lifting shaft 71 and the top of the sliding plate frame 51. A roller 73 is provided at 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 penetrates into the inside 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 is in contact with the bottom of the lifting shaft 71. The pressure sensor 75 is connected to the controller 125 through a wireless communication module to achieve data transmission and receipt of control instructions.

[0070] Specifically, the structure and connection relationship of the wheel-type pressure detection mechanism 7 will be further described. The wheel-type pressure detection mechanism 7 can timely detect deflection changes by real-time monitoring of the pressure distribution at the bottom of the bridge 2, 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 moved, 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, and the electrical signal is sent to the controller 125 through the wireless communication module. The controller 125 processes and analyzes the data. The controller 125 can judge 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 an embodiment of the present invention, as Figure 6 shown, the infrared rangefinder 8 includes 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 penetrating into the sliding plate frame 51 and corresponds to the position of the lifting shaft 71. A detection groove 711 is formed in the surface of the lifting shaft 71 corresponding to the position of the second rangefinder sensor 83, and 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 the wireless communication module to realize data transmission and receipt of control instructions.

[0073] Specifically, further illustrate the structure and connection relationship of the infrared rangefinder 8. The infrared rangefinder 8 realizes the precise measurement of the deflection of the bridge 2 through advantages such as dual-sensor design, reducing the influence of the external environment, improving measurement accuracy, and strong adaptability.

[0074] The main task of the first rangefinder sensor 82 is to directly measure the height difference between the infrared rangefinder 8 and the bottom of the bridge 2. By continuously monitoring the height difference data, it can be analyzed whether the deflection value of the bridge 2 changes. Deflection is the vertical deformation of the bridge 2 under the action of load, and the change in height difference directly reflects the change in deflection. The second rangefinder sensor 83 is located inside the sliding plate frame 51 and is relatively enclosed to reduce the influence of external environmental factors on the sensor. When the measurement of the first rangefinder sensor 82 is inaccurate due to environmental influence, the second rangefinder sensor 83 provides auxiliary measurement. By detecting the change in the depth of the detection groove 711 on the lifting shaft 71, the displacement of the lifting shaft 71 is indirectly measured. When the lifting shaft 71 moves, the depth value of the detection groove 711 changes. The second rangefinder sensor 83 captures this change and converts it into displacement data. By analyzing the displacement data, it can be further judged whether the deflection value of the bridge 2 changes. This corroborates with the height difference data provided by the first rangefinder sensor 82, improving the measurement accuracy and reliability. Through the collaborative work of the two sensors, the deflection value of the bridge 2 can be measured more accurately, and the use effect is good.

[0075] In one embodiment of the present invention, as Figure 5 shown, the rotating disk 9 is rotatably connected to the surface of the sliding plate frame 51. One end of the rotating disk 9 penetrates through the other surface of the bearing plate frame 4 and is fixedly connected with an external drive gear disk 91. The external drive gear disk 91 is located on one side of the top of the second step surface 62 of the tooth seat 6. The external drive gear disk 91 is meshed and connected with the second tooth 612. A lighting lamp 11 is slidably connected to the surface of the installation part of the external drive gear disk 91;

[0076] A transmission shaft 101 is rotatably connected to the inner wall of the central axis of the rotating disk 9. One end of the central axis of the rotating disk 9 penetrating through the other surface of the bearing plate frame 4 is rotatably connected with an internal drive gear disk 102. The internal drive gear disk 102 is located inside the external drive gear disk 91. The internal drive gear disk 102 is located on one side of the top of the first step surface 61 of the tooth seat 6 and is meshed and connected with the first tooth 611. One end of the transmission shaft 101 is connected to the internal drive gear disk 102. The other end of the transmission shaft 101 penetrates outside the rotating disk 9 and is fixedly connected with 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 lighting lamp 11 respectively penetrate into the target seat 103 and the installation part, and a second spring is fixedly connected between the target seat 103 and the inner wall of the installation part.

[0077] It should be noted that a damping ring is provided between the transmission shaft 101 and the inner wall of the central axis of the rotating disk 9 in this embodiment, and the damping ring design effectively prevents the transmission shaft 101 from rotating by itself.

[0078] Specifically, further illustrate the structure and connection relationship of the rotating disk 9. During the movement of the rotating disk 9, through the meshing connection between the external drive gear disk 91 and the second tooth 612, the rotating disk 9 can rotate synchronously. The rotation of the rotating disk 9 further drives the lighting lamp 11 to rotate, realizing fine adjustment of the angle of the lighting lamp 11 and ensuring that the lighting position always remains at the set position. At the same time, through the mutual cooperation of the transmission shaft 101, the internal drive gear disk 102, the target seat 103 and the first tooth 611, when the rotating disk 9 moves, the triangular target 10 can automatically adjust the angle. After adjusting the angle at the preset position, the triangular target 10 can accurately reflect the radar wave emitted by the radar transmitter-receiver 122, ensuring the accuracy of the data. In addition, the second spring provides elasticity and buffering for the triangular target 10 and the lighting lamp 11, making them stable during the sliding process, and the use effect is excellent.

[0079] In one embodiment of the present invention, as Figure 5 shown, both the triangular target 10 and the lighting lamp 11 include a detection rod 104. One end of the two detection rods 104 respectively contacts the bottom of the bridge 2. The other ends of the two detection rods 104 respectively penetrate into the target seat 103 and the installation part, and are fixedly connected to the ends of the triangular target 10 and the lighting lamp 11 penetrating into the target seat 103 and 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 structures and connection relationships of the triangular target 10 and the irradiation lamp 11 are further described. By providing the detection rod 104, the function of synchronously adjusting the installation heights of the triangular target 10 and the irradiation lamp 11 along with the deflection change of the bridge 2 can be realized. When the bridge 2 undergoes a deflection change, the detection rod 104 can sense this change and correspondingly adjust the installation heights of the triangular target 10 and the irradiation lamp 11. By comparing the data generated by the adjusted installation heights with the data generated at a specific position (such as the position when the bridge 2 has no deflection), it can be determined whether the deflection of the bridge 2 has changed, and the use effect is good.

[0082] In an embodiment of the present invention, as Figure 8 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 housing 124. The photoelectric sensor 1232 and the color sensor 1233 are respectively arranged on the inner wall of the receiving housing 124 and are 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 housing 124 and is 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 through a bus system to achieve data transmission and reception of control instructions.

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

[0084] Specifically, the structure and connection relationship of the light receiver 123 are further described. 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 with the controller 125 through the bus system to achieve comprehensive reception and processing of the light column intensity, color, and visual information, and the use effect is good.

[0085] Among them, the grid plate 1231 is used to divide the light column irradiation area into multiple small grids, facilitating the determination of the specific position and area of the light column irradiation. When the light column irradiates 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 combination with the grid plate 1231, it can be used to determine which grids are illuminated by the light, thereby calculating the irradiation position and approximate irradiation area of the light. The color sensor 1233 is used to detect the color of the light. The color sensor 1233 is placed at a position where it can receive the light irradiation, and determines the color of the irradiation light by measuring the color of the reflected light or transmitted light. By cooperating with the photoelectric sensor 1232, the irradiation position and approximate irradiation area of the light column are further refined. The second camera 1234 can capture images of the light irradiation area, providing detailed visual information. Through image processing algorithms, the second camera 1234 can be used to accurately determine the irradiation position, shape and area of the light column. The controller 125, as the center for data processing and instruction reception, is connected to the photoelectric sensor 1232, color sensor 1233 and second camera 1234 through the bus system. It is responsible for receiving the data from the sensors and executing corresponding algorithms to process these data, thereby determining the irradiation position, area and color of the light, and having good use effects.

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

[0087] A real-time bridge status monitoring method based on radar deployment, which is applied to the above-mentioned real-time bridge status monitoring device based on radar deployment, and includes the following steps:

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

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

[0090] S3: The wheel type pressure detection mechanism 7 moves synchronously with the sliding plate frame 51, and its top always remains in contact with the bottom of the bridge 2, and judges whether the deflection value of the bridge 2 changes by real-time monitoring of the pressure change;

[0091] S4: The infrared rangefinder 8 also moves synchronously with the sliding plate frame 51. It judges the deflection value of the bridge 2 by measuring the height difference from the bottom of the bridge 2 and combining the height displacement data of the wheel type pressure detection mechanism 7, improving the accuracy of detection;

[0092] S5: The rotating disk 9 moves synchronously with the sliding plate frame 51 and engages with the tooth seat 6 during the movement. This connection method enables the rotating disk 9 to drive the irradiation lamp 11 to rotate slowly synchronously when moving, thereby precisely adjusting the irradiation angle. Since the irradiation angle of the irradiation lamp 11 is continuously adjusted during the movement, it can ensure that the light always irradiates 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 intermittently engages with the tooth seat 6 during the movement. This design enables the triangular target 10 to automatically adjust the angle when moving to the set position, ensuring accurate reflection of the radar waves emitted by the radar transmitter-receiver 122 and improving the sensitivity and accuracy of detection;

[0094] S7: To more intuitively reflect the deflection change of the bridge 2, the triangular target 10 and the irradiation lamp 11 also respectively include detection rods 104. These detection rods 104 always keep in 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 irradiation lamp 11 to change the installation height. The change in the installation height of the triangular target 10 will cause the value of the radar waves received by the radar transmitter-receiver 122 to change. By analyzing these values, the change in the deflection can be judged. At the same time, the change in the installation height of the irradiation lamp 11 will also cause the change in its irradiation area. The light receiver 123 can further confirm whether the deflection of the bridge 2 has changed by detecting the change in the light position and the light area. This multiple detection method improves the accuracy and reliability of the deflection detection of the bridge 2.

[0095] In summary, for a real-time bridge status monitoring device, system and method based on radar deployment according to an embodiment of the present invention, the structure of the present invention is reasonable, and diverse monitoring means are adopted, effectively improving the accuracy and reliability of monitoring. By simplifying the installation process of the triangular target 10 and reducing the number of installed triangular targets, 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 the function of quickly positioning the radar device, further improving the monitoring efficiency.

[0096] In the description of this specification, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present invention, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0097] In the description of this specification, the descriptions referring to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples", etc. mean that the specific features, structures, materials, or characteristics described in connection 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 are not necessarily directed to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0098] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to 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 the 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 gear 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 gear 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 on 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 a 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 achieve data transmission and reception of control instructions; the reciprocating 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 achieve data transmission and reception of control instructions.

2. The real-time monitoring device for bridge status based on radar deployment according to claim 1 is characterized in that: The reciprocating motion mechanism (5) comprises 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 bearing plate frame (4); one end of the sliding plate frame (51) penetrates the other side of the 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 rotatably 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 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.

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

4. The radar-based real-time monitoring device for bridge status according to claim 3 is characterized in that: The wheeled pressure detection mechanism (7) comprises 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 arranged 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) arranged on the inner wall of the sliding plate frame (51); the pressure sensor (75) is arranged 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.

5. The radar-based real-time monitoring device for bridge status according to claim 4 is characterized in that: 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) penetrating 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) penetrating into the interior of the sliding plate frame (51) and corresponding to the position of the lifting shaft (71); a detection groove (711) is provided on the surface of the lifting shaft (71) 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 a controller (125) via a wireless communication module to realize data transmission and control command reception.

6. The real-time monitoring device for bridge status based on radar deployment according to claim 3 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) penetrates 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 meshedly connected to 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) penetrates 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) penetrates 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) penetrate through the target seat (103) and the inside of the mounting portion respectively, and a second spring is fixedly connected between the target seat (103) and the inner wall of the mounting portion.

7. The radar-based real-time monitoring device for bridge status according to claim 6 is characterized by: The triangular target (10) and the irradiation lamp (11) both comprise detection rods (104), one end of two groups of the detection rods (104) respectively contacting the bottom of the bridge (2), and the other ends of the two groups of the detection rods (104) respectively penetrate into the target seat (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) penetrating into the target seat (103) and the interior of the mounting portion.

8. The real-time monitoring device for bridge status based on radar deployment 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 a 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 at 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 at 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 a controller (125) via a bus system to realize data transmission and reception of control instructions.

9. 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 1-8.

10. 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 8, comprising the following steps: S1: the drive motor (56) receives a control instruction, starts and begins to run stably; S2: driven by the driving motor (56), the sliding plate frame (51) moves smoothly along the length direction of the bearing plate frame (4); 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), and determines whether the deflection value of the bridge (2) changes by monitoring the pressure change in real time; 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 holder (6) during the movement. This connection mode 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 meshed 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, thereby ensuring accurate reflection of the radar waves 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) 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 rod (104) will drive the triangular target (10) and the irradiation lamp (11) to change the 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 illumination receiver (123) can further confirm whether the deflection of the bridge (2) has changed by detecting the changes in the illumination position and the illumination area. This multiple detection method improves the accuracy and reliability of the deflection detection of the bridge (2).

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