Method and device for monitoring vibration condition of concrete prefabricated segment steel die

Abstract

The invention discloses a device for monitoring the vibration condition of a concrete prefabricated segment steel die, and the device comprises a marble pedestal, a movable X shaft is connected to the marble pedestal, and the bottom of a supporting column is slidably connected to the movable X shaft; the movable Y shaft is connected to the top of the supporting column, a motion platform is connected to the movable Y shaft in a sliding mode, and a laser displacement sensor is connected to the motion platform; the supporting column is arranged on the base, the positioning camera module is connected to the supporting column, a rail is arranged on the ground, a conveying trolley is arranged on the rail, a steel mold is positioned on the conveying trolley, a marker is arranged on the steel mold, and the positioning camera module is used for detecting the position of the marker. According to the invention, the relative distance between the laser displacement sensor and the monitoring surface of the marker is detected, non-contact monitoring is realized, the efficiency of steel mold vibration monitoring is improved, uncertain errors caused by human factors are reduced, and batch online monitoring of steel mold vibration monitoring can be realized.

Description

Technical Field

[0001] The present invention belongs to the technical field of steel formwork monitoring, and in particular relates to a method and device for monitoring the vibration condition of a steel formwork for a prefabricated concrete pipe segment. Background Art

[0002] During the production of precast tunnel segments, mold vibration is a critical process for ensuring adequate filling and compaction of cement mortar. The performance of the mold vibration motor directly impacts the vibration effect, and thus the quality of the segments. Therefore, real-time monitoring of mold vibration and health assessment of the mold vibration motor are crucial for ensuring segment production quality, preventing equipment failures, and improving production efficiency.

[0003] Currently, steel mold vibration is measured using a contact vibrometer, and the tester needs to manually attach the sensor probe to the surface of the steel mold to detect the vibration of the steel mold. This method is inefficient and the probe is easily damaged. At the same time, the manual placement of the probe results in differences in the position of each measurement, resulting in the continuous monitoring data at different stages of steel mold vibration being unable to accurately reflect the actual vibration state of the mold. Summary of the Invention

[0004] The purpose of the present invention is to solve the problems of low measurement efficiency and easy damage of the probe when measuring the vibration of the steel mold using a contact vibrometer; at the same time, due to the manual placement of the probe, there are differences in the position of each measurement, so the continuous detection data of the steel mold vibration is difficult to achieve the purpose of effectively monitoring the vibration status of the mold.

[0005] To achieve the above-mentioned object, the present invention adopts the following technical solution: a device for monitoring the vibration condition of a steel mold for a prefabricated concrete segment, comprising:

[0006] A marble base, a movable X-axis is connected to the marble base, and the bottom of the support column is slidably connected to the movable X-axis;

[0007] A movable Y-axis is connected to the top of the support column, a motion platform is slidably connected to the movable Y-axis, and a laser displacement sensor is connected to the motion platform;

[0008] and a positioning camera module connected to the support column, a track is provided on the ground, a transport trolley is provided on the track, the steel mold is positioned on the transport trolley, a marker is provided on the steel mold, and the positioning camera module is used to detect the position of the marker.

[0009] As a further description of the above technical solution:

[0010] A protective cover is provided on the marble base, and the movable X-axis, the movable Y-axis, the laser displacement sensor and the positioning camera module are all located in the protective cover.

[0011] As a further description of the above technical solution:

[0012] The positioning camera module includes a visual light source and an industrial motion camera. The industrial motion camera is provided with an industrial lens. The industrial motion camera is connected to the supporting column through a camera bracket.

[0013] As a further description of the above technical solution:

[0014] The visual light source is sleeved on the industrial lens, and the visual light source is connected to the camera bracket via a light source bracket.

[0015] As a further description of the above technical solution:

[0016] The movable Y-axis includes a magnetic driver, a magnetic steel stator and a slider. The magnetic driver is installed on the top of the support column. The slider is connected to the magnetic driver through a mounting bracket. The motion platform includes a slide rail and a Y-axis substrate. The slide rail is slidably connected to the slider. The magnetic steel stator and the slide rail are both connected to the Y-axis substrate. The two slide rails are located on both sides of the magnetic steel stator. The laser displacement sensor is connected to the Y-axis substrate. A baffle is provided at the front end of the Y-axis substrate.

[0017] As a further description of the above technical solution:

[0018] Positioning feet are arranged around the processor, and the positioning feet are connected to the marble base.

[0019] As a further description of the above technical solution:

[0020] The marker is provided with a QR code.

[0021] As a further description of the above technical solution:

[0022] A pressure tank is arranged on the ground, a plurality of vibration air pumps are connected to the steel mold, an air pipe is arranged between the plurality of vibration air pumps and the pressure tank, and an air source monitoring device is arranged on the air pipe.

[0023] As a further description of the above technical solution:

[0024] The present invention also provides a monitoring method for a device for monitoring the vibration condition of a steel mold for a prefabricated concrete segment, comprising the following steps:

[0025] S1: Positioning of steel mold markers: The steel mold moves to the grouting station on the assembly line, and the marker enters the field of view of the positioning camera module. The positioning camera module automatically recognizes the QR code information on the marker. At the same time, based on the position of the marker in the two frames before and after the camera is taken, it is determined whether the marker is moving. When the marker position changes by less than 1mm, it is considered that the marker has stopped. At this time, the marker position is read and transmitted to the processor;

[0026] S2: The laser displacement sensor moves to the detection position: the processor calculates the distance in the X direction between the marker and the center of the field of view of the positioning camera module based on the current position of the marker (Dx=ⅠXb-XcⅠ); the processor drives the active X-axis to move a distance Dx. At this time, the laser displacement sensor, the marker, and the active X-axis are in the same position. The processor then drives the active Y-axis to move a fixed distance Dy, driving the laser displacement sensor to the bottom of the marker monitoring surface.

[0027] S3: Vibration data acquisition: After the laser displacement sensor moves to the position directly below the monitoring surface, it waits for 90 seconds until the steel mold grouting is completed and the steel mold enters a stable vibration state. The laser displacement sensor then begins to collect the distance from the monitoring surface.

[0028] S4: Gas data acquisition: When vibration acquisition starts, the processor simultaneously collects the gas pressure and flow data of the sensor in the gas source monitoring device;

[0029] S5: Vibration data processing:

[0030] a. Peak calculation: When a data point satisfies the requirement of being greater than the adjacent n points before and after it and higher than the threshold, the data max(data) is obtained;

[0031] b. Valley calculation: When a data point satisfies the requirement of being smaller than the adjacent n points before and after it and smaller than the threshold, the data min(data) is obtained;

[0032] c. Amplitude calculation: directly take the peak-to-peak value of the signal (max(data) - min(data)) and divide it by 2 to get the amplitude;

[0033] d. Frequency calculation: During the detection time, the peak count is divided by the duration to obtain the vibration frequency;

[0034] S6: Air source data processing: recording the pressure and flow values ​​when the vibration air pump is not turned on, one vibration motor is turned on, two vibration air pumps are turned on, three vibration air pumps are turned on, and four vibration air pumps are turned on, respectively, and setting the air source pressure and flow thresholds;

[0035] S7: Determine the vibration condition of the steel mold: first, detect whether the air source is normal when the vibration air pump is not turned on; after the steel mold starts vibrating, monitor the amplitude and frequency of the steel mold vibration, and determine whether the vibration air pump is working normally based on the values ​​of the air source pressure and flow rate.

[0036] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0037] 1. In the present invention, by designing a motion camera module, it is possible to detect in real time whether there is a steel mold marker within the camera's field of view; when the steel mold moves to the cement pouring station, the camera module can detect the position of the marker on the steel mold and the QR code (the QR code with steel mold information is designed on the marker), output the coordinates of the horizontal position of the steel mold marker and the steel mold information, and the processor controls the movement of the active X-axis according to the horizontal position information so that the laser displacement sensor is aligned with the center of the marker; then the active Y-axis moves a fixed distance, and the laser displacement sensor on the motion platform is moved below the marker monitoring surface, so that the marker relative to the laser displacement sensor can be monitored. The distance between the marker and the sensor is monitored. Because the marker is fixed on the steel mold and the vibration monitoring device is fixed on the foundation, the change in the distance between the marker and the laser displacement sensor is detected, that is, the change in the distance between the steel mold and the laser displacement sensor, and the vibration data of the steel mold can be obtained. The laser displacement sensor transmits laser to the monitoring surface of the marker and detects the relative distance between the laser displacement sensor and the marker monitoring surface, thereby realizing non-contact monitoring, improving the efficiency of steel mold vibration monitoring, reducing the uncertainty error caused by human factors, and enabling batch online monitoring of steel mold vibration.

[0038] 2. The present invention not only realizes the automatic visual positioning function of the marker on the steel mold, but also realizes non-contact vibration monitoring; it greatly improves the efficiency of steel mold vibration monitoring, reduces the uncertainty error caused by human factors, and enables batch online monitoring of steel mold vibration.

[0039] 3. In the present invention, a visual light source dedicated to camera photography is provided on the positioning camera module, which can provide stable and uniform lighting conditions for the camera vision; the use of industrial lenses can obtain more reliable and clear images, and the use of industrial motion cameras can enable the steel mold to take pictures during movement, and the camera has high reliability and good heat dissipation capabilities, allowing 24-hour continuous operation; wherein, the camera bracket is integrally processed from aluminum alloy material, which can stably and reliably support the camera module, and can conduct and dissipate the heat emitted by the camera; the light source bracket is welded with stainless steel, which can stably and reliably support the visual light source, and conduct and dissipate the heat generated by the light source.

[0040] 4. In the present invention, the laser displacement sensor is mounted and fixed on the Y-axis substrate. The Y-axis substrate is formed from aluminum alloy and has multiple reinforcing ribs designed on it to increase the horizontal rigidity of the Y-axis substrate. The Y-axis substrate is designed with dual slide rails, which are installed on the back of the Y-axis substrate. Dual sliders are installed on the slide rails. The movable Y-axis adopts a magnetic drive motor design. The magnetic driver is fixed on the support column. The magnetic driver is connected and fixed to the slider. A magnetic steel stator is installed on the Y-axis substrate. When powered on, it can drive the Y-axis substrate to move relative to the slider. At the same time, a magnetic scale probe is installed on the slider, and a magnetic scale strip is installed on the Y-axis substrate. During the movement of the Y-axis substrate, the magnetic scale can accurately output position information, allowing the processor to achieve closed-loop control of the movable Y-axis. Using a magnetic drive motor as a driving source results in less vibration and can more smoothly drive the laser displacement sensor to move. At the same time, a baffle is installed on the Y-axis substrate, and a cylindrical buffer rubber pad is fixed on the baffle to effectively prevent the problem of exceeding the stroke.

[0041] 5. In the present invention, several vibrating air pumps are installed on the steel mold, and a gas monitoring device is installed at the air source inlet of the air cylinder that drives the steel mold to vibrate. The gas monitoring device is provided with a sensor that can detect the flow rate and air pressure data of the air source in real time; the pressure tank supplies air to the vibrating air pump through the air pipe, so that the vibrating air pump drives the steel mold to vibrate. Combining the vibration data and the gas data, it can effectively determine whether the vibration of the steel mold is normal and whether the vibrating air pump is working normally.

[0042] 6. This invention not only achieves automatic visual positioning of mold markers but also enables non-contact vibration monitoring. This significantly improves the efficiency of mold vibration monitoring and reduces the uncertainty caused by human factors, enabling batch online monitoring of mold vibration. Furthermore, by using air source data as a reference, the proper operation of the vibration pump is ensured, enabling more accurate assessment of mold vibration conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0044] Figure 1 A monitoring device for the vibration condition of the steel mold of a concrete prefabricated pipe segment with a three-dimensional internal structure Figure 1 .

[0045] Figure 2 A monitoring device for the vibration condition of the steel mold of a concrete prefabricated pipe segment with a three-dimensional internal structure Figure 2 .

[0046] Figure 3 A three-dimensional monitoring device for the vibration condition of the steel mold of a concrete prefabricated pipe segment Figure 1 .

[0047] Figure 4 The usage status of a monitoring device for the vibration condition of the steel mold of a concrete prefabricated pipe segment Figure 1 .

[0048] Figure 5 The usage status of a monitoring device for the vibration condition of the steel mold of a concrete prefabricated pipe segment Figure 2 .

[0049] Legend:

[0050] 1-Marble base; 2-Moveable X-axis; 3-Support column; 4-Moveable Y-axis; 41-Magnetic driver; 42-Magnetic stator; 43-Slider; 5-Motion platform; 51-Slide rail; 52-Y-axis base plate; 6-Laser displacement sensor; 7-Positioning camera module; 71-Visual light source; 72-Industrial motion camera; 8-Track; 9-Transport trolley; 10-Steel mold; 11-Marker; 12-Protective cover; 13-Industrial lens; 14-Camera bracket; 15-Light source bracket; 16-Baffle; 17-Positioning foot; 18-Processor; 19-Mounting bracket. DETAILED DESCRIPTION

[0051] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present invention.

[0052] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0053] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention as claimed, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort shall fall within the scope of protection of the present invention.

[0054] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0055] In the description of the embodiments of the present invention, it should be noted that the terms "upper" and "inner" etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are orientations or positional relationships in which the inventive product is usually placed when in use. These are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they should not be understood as limitations on the present invention.

[0056] In the description of the present invention, it should also be noted that, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood broadly. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to direct connections, indirect connections through an intermediate medium, or internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0057] See also Figure 1-5 The present invention provides a technical solution: a device for monitoring the vibration condition of a steel mold for a prefabricated concrete segment, comprising:

[0058] A marble base 1, a movable X-axis 2 is connected to the marble base 1, and the bottom of the support column 3 is slidably connected to the movable X-axis 2;

[0059] The movable Y-axis 4 is connected to the top of the support column 3, the motion platform 5 is slidably connected to the movable Y-axis 4, and the laser displacement sensor 6 is connected to the motion platform 5; the middle of the support column is hollow square steel, and steel plates are welded at both ends, which can stably and firmly connect the X-axis and Y-axis while having a light weight;

[0060] And a positioning camera module 7, which is connected to the support column 3, a track 8 is provided on the ground, a transport trolley 9 is provided on the track 8, a steel mold 10 is positioned on the transport trolley 9, a marker 11 is provided on the steel mold 10, and the positioning camera module 7 is used to detect the position of the marker 11.

[0061] A protective cover 12 is provided on the marble base 1. The movable X-axis 2, the movable Y-axis 4, the laser displacement sensor 6, and the positioning camera module 7 are all located within the protective cover 12, protecting the modules within. The protective cover is welded from stainless steel plates to protect the equipment from damage caused by falling cement blocks. Multiple heat dissipation holes are designed on the sides to prevent internal heat accumulation.

[0062] The positioning camera module 7 includes a visual light source 71 and an industrial motion camera 72 . The industrial motion camera 72 is provided with an industrial lens 13 . The industrial motion camera 72 is connected to the support column 3 via a camera bracket 14 .

[0063] The visual light source 71 is mounted on the industrial lens 13 , and the visual light source 71 is connected to the camera bracket 14 via a light source bracket 15 .

[0064] The movable Y-axis 4 includes a magnetic driver 41, a magnetic stator 42 and a slider 43. The magnetic driver 41 is installed on the top of the support column 3. The slider 43 is connected to the magnetic driver 41 through a mounting bracket 19. The motion platform 5 includes a slide rail 51 and a Y-axis substrate 52. The slide rail 51 is slidably connected to the slider 43. The magnetic stator 42 and the slide rail 51 are both connected to the Y-axis substrate 52. The two slide rails 51 are located on both sides of the magnetic stator 42. The laser displacement sensor 6 is connected to the Y-axis substrate 52. A baffle 16 is provided at the front end of the Y-axis substrate 52.

[0065] Positioning feet 17 are provided around the processor 18 , and the positioning feet 17 are connected to the marble base 1 .

[0066] The marker 11 is provided with a QR code.

[0067] The movable X-axis adopts the same magnetic drive design as the movable Y-axis. The X-axis baseplate is installed on a marble base. A support column is installed above the magnetic driver to drive the support column to move in the X-axis direction.

[0068] A pressure tank is installed on the ground. Several vibrating air pumps are connected to the steel mold 10. Air pipes are installed between the vibrating air pumps and the pressure tanks. The air pipes are equipped with an air source monitoring device. The air source monitoring device can detect the flow rate and pressure of the air source in real time and transmit the data to the processor via 485 communication.

[0069] The steel mold marker is made of stainless steel, and a laser-engraved QR code is used on the front. The QR code contains the steel mold identity information, etc. The lower surface of the marker is the vibration sensor monitoring surface; the marker is designed with an outer edge, which can effectively prevent mud from falling onto the QR code. The vibration monitoring surface is designed at the bottom of the marker to avoid contamination of the monitoring surface, which may lead to misjudgment of monitoring. At the same time, it can also effectively protect the vibration sensor from being contaminated by falling mud.

[0070] The present invention also provides a monitoring method for a device for monitoring the vibration condition of a steel mold for a prefabricated concrete segment, comprising the following steps:

[0071] S1: Marker positioning: The steel mold 10 moves to the grouting station on the assembly line, and the marker 11 enters the field of view of the positioning camera module 7 (the camera field of view covers the position deviation range of the marker at the grouting station). The positioning camera module 7 automatically recognizes the QR code information on the marker. At the same time, based on the position of the marker 11 in the two frames before and after the camera is taken, it is determined whether the marker 11 is moving. When the position change of the marker 11 is less than 1mm, it is considered that the marker 11 has stopped. At this time, the position of the marker 11 is read and transmitted to the processor 18;

[0072] S2: The laser displacement sensor 6 moves to the detection position: The processor 18 calculates the distance in the X direction between the marker 11 and the center of the field of view of the positioning camera module 7 based on the current position of the marker 11 (Dx=IXb-XcⅠ); the processor 18 drives the movable X-axis 2 to move a distance Dx. At this time, the laser displacement sensor, the marker, and the movable X-axis are in the same position. The processor then drives the movable Y-axis 4 to move a fixed distance Dy, driving the laser displacement sensor 6 to the position directly below the marker monitoring surface.

[0073] S3: Vibration Data Acquisition: After the laser displacement sensor 6 moves to the position directly below the monitoring surface of the steel mold 10, it waits for 90 seconds until the grouting of the steel mold 10 is complete and the steel mold 10 enters a stable vibration state. The laser displacement sensor 6 then begins to collect the distance to the monitoring surface. The sampling frequency is 3 kHz, and the distance detection accuracy is 0.1 μs. Since the rated vibration frequency of the steel mold is 240 Hz and the amplitude is 25 μm, the sampling frequency of the detection tool must be at least 10 times greater than the rated frequency, and the detection accuracy must be at least 10 times greater than the amplitude.

[0074] S4: Gas data acquisition: When vibration acquisition starts, the processor simultaneously collects the gas pressure and flow data of the sensor in the gas source monitoring device;

[0075] S5: Vibration data processing:

[0076] a. Peak calculation: When a data point is greater than the n adjacent points before and after it (n=5) and is higher than the threshold, the data max(data) is obtained; (Threshold: 2 times the standard deviation to avoid misjudgment due to noise);

[0077] b. Valley calculation: When the data point is less than the n adjacent points before and after it (n=5) and less than the threshold, the data min(data) is obtained; (Threshold: 2 times the standard deviation to avoid noise misjudgment);

[0078] c. Amplitude calculation: directly take the peak-to-peak value of the signal (max(data) - min(data)) and divide it by 2 to get the amplitude;

[0079] d. Frequency calculation: During the detection time, the peak count is divided by the duration to obtain the vibration frequency;

[0080] S6: Air source data processing: recording the pressure and flow values ​​when the vibration air pump is not turned on, one vibration motor is turned on, two vibration air pumps are turned on, three vibration air pumps are turned on, and four vibration air pumps are turned on, respectively, and setting the air source pressure and flow thresholds;

[0081] S7: Determine the vibration condition of the steel mold: first, detect whether the air source is normal when the vibration air pump is not turned on; after the steel mold starts vibrating, monitor the amplitude and frequency of the steel mold vibration, and determine whether the vibration air pump is working normally based on the values ​​of the air source pressure and flow rate.

[0082] Working Principle: A motion camera module is designed to detect in real time whether there is a steel formwork marker within the camera's field of view. When the steel formwork moves to the cement pouring station, the camera module detects the position of the marker and a QR code (designed with steel formwork information) on the steel formwork, outputting the horizontal coordinates of the marker and steel formwork information. Based on this horizontal position information, the processor controls the movement of the active X-axis to align the laser displacement sensor with the center of the marker. The active Y-axis then moves a fixed distance, moving the laser displacement sensor on the motion platform below the marker monitoring surface. This allows the distance of the marker relative to the laser displacement sensor to be monitored. Because the marker is fixed to the steel formwork and the vibration monitoring device is fixed to the foundation, the change in the distance between the marker and the laser displacement sensor is detected, which is the change in the distance between the steel formwork and the laser displacement sensor, providing vibration data for the steel formwork. Because the laser displacement sensor transmits laser light to the marker monitoring surface and detects the relative distance between the laser displacement sensor and the marker monitoring surface, it achieves non-contact monitoring, improving the efficiency of steel formwork vibration monitoring and reducing the uncertainty caused by human factors, enabling batch online monitoring of steel formwork vibration.

[0083] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A device for monitoring the vibration condition of a steel mold for a prefabricated concrete segment, characterized in that: include: A marble base, a movable X-axis is connected to the marble base, and the bottom of the support column is slidably connected to the movable X-axis; A movable Y-axis is connected to the top of the support column, a motion platform is slidably connected to the movable Y-axis, and a laser displacement sensor is connected to the motion platform; and a positioning camera module connected to the support column, a track is provided on the ground, a transport trolley is provided on the track, the steel mold is positioned on the transport trolley, a marker is provided on the steel mold, and the positioning camera module is used to detect the position of the marker.

2. The device for monitoring the vibration condition of a prefabricated concrete segment steel mold according to claim 1, characterized in that: A protective cover is provided on the marble base, and the movable X-axis, the movable Y-axis, the laser displacement sensor and the positioning camera module are all located in the protective cover.

3. The device for monitoring the vibration condition of a prefabricated concrete segment steel mold according to claim 2, characterized in that: The positioning camera module includes a visual light source and an industrial motion camera. The industrial motion camera is provided with an industrial lens. The industrial motion camera is connected to the supporting column through a camera bracket.

4. The device for monitoring the vibration condition of a prefabricated concrete segment steel mold according to claim 3, characterized in that: The visual light source is sleeved on the industrial lens, and the visual light source is connected to the camera bracket via a light source bracket.

5. The device for monitoring the vibration condition of a prefabricated concrete segment steel mold according to claim 1, characterized in that: The movable Y-axis includes a magnetic driver, a magnetic steel stator and a slider. The magnetic driver is installed on the top of the support column. The slider is connected to the magnetic driver through a mounting bracket. The motion platform includes a slide rail and a Y-axis substrate. The slide rail is slidably connected to the slider. The magnetic steel stator and the slide rail are both connected to the Y-axis substrate. The two slide rails are located on both sides of the magnetic steel stator. The laser displacement sensor is connected to the Y-axis substrate. A baffle is provided at the front end of the Y-axis substrate.

6. The device for monitoring the vibration condition of a steel mold for a prefabricated concrete segment according to claim 1, characterized in that The processor is provided with positioning feet around it, and the positioning feet are connected to the marble base.

7. The device for monitoring the vibration condition of a steel mold for a prefabricated concrete segment according to claim 1 is characterized in that ,A QR code is set on the marker.

8. The device for monitoring the vibration condition of a steel mold for a prefabricated concrete segment according to claim 1 is characterized in that A pressure tank is set on the ground, several vibration air pumps are connected to the steel mold, air pipes are set between the several vibration air pumps and the pressure tank, and an air source monitoring device is set on the air pipe.

9. A monitoring method for a vibration condition monitoring device of a prefabricated concrete segment steel mold according to claims 1-8, characterized in that , including the following steps: S1: Positioning of steel mold markers: The steel mold moves to the grouting station on the assembly line, and the marker enters the field of view of the positioning camera module. The positioning camera module automatically recognizes the QR code information on the marker. At the same time, based on the position of the marker in the two frames before and after the camera is taken, it is determined whether the marker is moving. When the marker position changes by less than 1mm, it is considered that the marker has stopped. At this time, the marker position is read and transmitted to the processor; S2: The laser displacement sensor moves to the detection position: the processor calculates the distance in the X direction between the current position of the marker and the center position of the field of view of the positioning camera module (Dx=ⅠXb-XcⅠ); the processor drives the movable X-axis to move a distance Dx, and then drives the movable Y-axis to move a fixed distance Dy, driving the laser displacement sensor to the bottom of the marker monitoring surface; S3: Vibration data acquisition: After the laser displacement sensor moves to the position directly below the monitoring surface, it waits for 90 seconds until the steel mold grouting is completed and the steel mold enters a stable vibration state. The laser displacement sensor then begins to collect the distance from the monitoring surface. S4: Gas data acquisition: When vibration acquisition starts, the processor simultaneously collects the gas pressure and flow data of the sensor in the gas source monitoring device; S5: Vibration data processing: a. Peak calculation: When a data point satisfies the requirement of being greater than the adjacent n points before and after it and higher than the threshold, the data max(data) is obtained; b. Valley calculation: When a data point satisfies the requirement of being smaller than the adjacent n points before and after it and smaller than the threshold, the data min(data) is obtained; c. Amplitude calculation: directly take the peak-to-peak value of the signal (max(data) - min(data)) and divide it by 2 to get the amplitude; d. Frequency calculation: During the detection time, the peak count is divided by the duration to obtain the vibration frequency; S6: Air source data processing: recording the pressure and flow values ​​when the vibration air pump is not turned on, one vibration motor is turned on, two vibration air pumps are turned on, three vibration air pumps are turned on, and four vibration air pumps are turned on, respectively, and setting the air source pressure and flow thresholds; S7: Determine the vibration condition of the steel mold: first, detect whether the air source is normal when the vibration air pump is not turned on; after the steel mold starts vibrating, monitor the amplitude and frequency of the steel mold vibration, and determine whether the vibration air pump is working normally based on the values ​​of the air source pressure and flow rate.

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