Multi-point settlement monitoring system, monitoring device and method for vibration test bed

Abstract

The application provides a vibration test bed multi-point settlement monitoring system, a monitoring device and a method, and relates to the field of settlement monitoring, and comprises a laser, a reflector and a settlement warning device; the laser is arranged on a foundation detection pile and is used for emitting multiple collimated lasers; the reflector is arranged as multiple along the side wall of one side of the vibration test bed and is used for reflecting at least one collimated laser to the vicinity of the support foundation arranged in lines; the settlement warning device is arranged on the support foundation and is used for collecting the collimated laser signal; when the settlement occurs and the collimated laser cannot be collected, a signal is sent. The application can continuously monitor the settlement of each support point in an economical way, can ensure timely warning in the case of uneven ground settlement, can avoid safety accidents caused by uneven stress of each support point in the construction process, can avoid uneven settlement of the vibration isolator foundation after construction, and can avoid safety accidents in the experiment process.

Description

Technical Field

[0001] This invention relates to the field of settlement monitoring of multi-point support systems for large-volume suspended concrete, and in particular to a multi-point settlement monitoring system, monitoring device and method for vibration test bench. Background Technology

[0002] Some vibration test benches weigh over 3500 tons. During use, these benches are supported at multiple points by a series of vibration isolators, and during construction, they are supported by multiple jacks. This support structure requires consistent stress across all support nodes; otherwise, major safety accidents may occur. However, ground settlement is affected by the uniformity of the geological structure, making it difficult to maintain consistent settlement depth across support nodes. Therefore, it is necessary to monitor each support node and provide early warnings for abnormally uneven settlement. During construction, compensation for uneven settlement can be made by adjusting the jacks. During experimental intervals in actual use, the height of the vibration isolators can be adjusted to ensure consistent stress across all nodes supporting the vibration test bench. To solve these technical challenges, it is necessary to monitor the settlement of each node. Current technology commonly uses a total station at a benchmark point to monitor the settlement of each support node. However, the jacks or vibration isolator array structure beneath the vibration test bench obstructs light, making it difficult to observe each support node. There are also solutions that use laser rangefinders to monitor settlement, such as those described in Chinese patent documents CN120991800A and CN118392125A. However, the observation conditions below the vibration test bench are harsh, posing a significant safety risk if uneven settlement has already occurred. Furthermore, the presence of jacks or vibration isolator arrays obstructs the view, requiring a large number of total stations and laser rangefinders depending on the number of nodes, which significantly increases the system cost. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a multi-point settlement monitoring system, monitoring device and method for vibration test bench, which can monitor the settlement of each support point of the vibration test bench during construction and experimentation, avoid safety accidents caused by uneven settlement, and ensure the safety of construction and experimentation of the vibration test bench.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is: a multi-point settlement monitoring system for a vibration test bench, including a laser, a reflector and a settlement warning device; The laser is mounted on the foundation testing pile and is used to emit multiple collimated laser beams; Multiple reflectors are arranged along one sidewall of the vibration test bench to reflect at least one collimated laser beam to the vicinity of the row-and-column arranged support base. The settlement warning device is installed on the support foundation and is used to collect collimated laser signals. When settlement occurs and collimated laser signals cannot be collected, a signal is sent.

[0005] In the preferred embodiment, the foundation testing piles are driven into the bedrock, and a crossbeam is provided at the top of the foundation testing pile. The end of the crossbeam that extends past the side wall is fixedly connected to the suspension rod, and the suspension rod extends downward close to the foundation stratum. The laser is installed at the end of the crossbeam and emits multiple collimated laser beams toward the foundation stratum. A reflective mirror is installed at the bottom end of the suspension rod to reflect the collimated laser beams to the horizontal direction. Alternatively, the laser can be placed at the bottom end of the suspension rod and emit multiple collimated laser beams in a horizontal direction.

[0006] In a preferred embodiment, the reflector includes a reflective base, a reflective adjustment arm, and a reflective seat body; The reflective base is fixedly connected to the side wall, the reflective adjustment arm is connected to the reflective base, the adjustable free end of the reflective adjustment arm is provided with a reflective seat, the reflective seat is provided with a lens seat, and the lens seat is fixedly provided with a reflective lens. The laser emits multiple collimated laser beams, and the position of the reflector corresponds to one of the collimated laser beams. Alternatively, the laser emits multiple collimated laser beams, and the reflectors are divided into multiple groups, each group corresponding to one collimated laser beam. In each group of reflectors, except for the last reflecting lens, the remaining reflecting lenses are beam-splitting reflectors that partially reflect and partially transmit.

[0007] In the preferred embodiment, the beam splitting ratio of the beam-splitting reflector is 1:1 to 4.

[0008] In the preferred embodiment, the settlement warning device includes a data collection base, a data collection adjustment arm, a data collection head, and a data collector; The acquisition base is fixed on the support foundation. The acquisition adjustment arm is connected to the acquisition base. The adjustable free end of the acquisition adjustment arm is equipped with an acquisition head, which is connected to the acquisition device through an optical fiber.

[0009] In a preferred embodiment, the acquisition head includes an acquisition base connected to an acquisition adjustment arm. An acquisition lens is provided at the end of the acquisition base. An optical fiber is inserted into the acquisition base. A converging lens is provided between the end of the optical fiber and the acquisition lens. The acquisition lens sends the collimated laser through the converging lens to the end of the optical fiber by reflection. The collector is equipped with a light sensor, which collects the light signal from the optical fiber. The light sensor is electrically connected to the main control chip, which is electrically connected to the switching transistor. The switching transistor controls the LED's on / off state.

[0010] In a preferred embodiment, a wireless transmission chip is also provided, which is electrically connected to the main control chip, a wireless receiving chip is wirelessly connected to the wireless transmission chip, and the wireless receiving chip is electrically connected to the acquisition chip and the memory.

[0011] In a preferred embodiment, the top or end of the settling alarm's data acquisition seat is open to expose one side of the acquisition lens; The collecting lenses of each settlement warning device reflect collimated laser light in a sequentially rising or extending manner; The sequentially ascending method of reflecting collimated laser means that the top of the lens mount is open, and the top edge of the reflecting lens reflects the collimated laser. When the supporting foundation where the settlement alarm is located settles, the settlement alarm cannot collect the laser signal and will trigger an alarm. In multiple settlement alarms arranged in sequence, the collecting lens of the later settlement alarm is higher than the collecting lens of the earlier one.

[0012] A monitoring device for a multi-point settlement monitoring system for a vibration test bench, wherein a settlement alarm is installed on the support foundation and is used to collect collimated laser signals. When settlement occurs and collimated laser cannot be collected, a signal is sent. The settlement warning device includes a data collection base, a data collection adjustment arm, a data collection head, and a data collector; The data acquisition base is fixed on the support foundation. The data acquisition adjustment arm is connected to the data acquisition base. The adjustable free end of the data acquisition adjustment arm is equipped with a data acquisition head, which is connected to the data acquisition device through an optical fiber. The acquisition head includes an acquisition base, which is connected to an acquisition adjustment arm. An acquisition lens is provided at the end of the acquisition base. An optical fiber is inserted into the acquisition base. A converging lens is provided between the end of the optical fiber and the acquisition lens. The acquisition lens sends the collimated laser through the converging lens to the end of the optical fiber by reflection. The collector is equipped with a light sensor, which collects the light signal from the optical fiber. The light sensor is electrically connected to the main control chip, which is electrically connected to the switching transistor. The switching transistor controls the LED's on / off state.

[0013] A monitoring method using the above-mentioned multi-point settlement monitoring system for vibration test bench includes the following steps: S1. Set up the laser on the independent foundation detection pile and emit multiple parallel collimated laser beams. Set up multiple reflectors to horizontally distribute the collimated laser beams to each row of supporting foundations. Set up a settlement warning device on the supporting foundation. The settlement warning device collects the signal of the collimated laser beam. S2. The acquisition lenses in each column reflect the collimated laser in a manner that they rise or extend sequentially. S3. When the collimated laser signal is received, the main control chip does not operate. When the collimated laser signal is not received for a period of time, the main control chip controls the LED to turn on. Alternatively, the main control chip can send a warning signal wirelessly.

[0014] This invention provides a multi-point settlement monitoring system, device, and method for vibration test benches. It enables continuous and economical monitoring of settlement at each support point, ensuring timely alerts in cases of uneven ground settlement and preventing safety accidents due to uneven stress distribution at support points during construction. It also avoids safety accidents during experiments caused by uneven settlement of the vibration isolator foundation after construction. This invention employs a laser beam emitted from the foundation testing pile and monitored at each support point, solving the problem of settlement monitoring at multiple support points for large volumes of suspended concrete in confined spaces. Compared to total station methods, this invention is more convenient to use, eliminating the need for personnel to descend below the vibration test bench for observation. Compared to lidar methods, this invention offers higher monitoring accuracy and significantly lower costs, enabling long-term monitoring of multi-point settlement. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments: Figure 1 This is a top view of the overall structure of the present invention.

[0016] Figure 2 This is a schematic diagram of the arrangement structure of multiple reflectors of the present invention.

[0017] Figure 3 This is a schematic diagram of the arrangement structure of multiple settlement warning devices of the present invention.

[0018] Figure 4 This is a schematic diagram of the reflector base of the present invention.

[0019] Figure 5 This is a schematic diagram of the acquisition head of the present invention.

[0020] Figure 6 This is a circuit diagram of the data acquisition device of the present invention.

[0021] Figure 7 This is a schematic diagram of another preferred structure of the data collector of the present invention.

[0022] Figure 8 This is a top-view structural diagram of the monitoring process during the construction of this invention.

[0023] Figure 9 This is a top-view structural diagram of the structure monitored during the experiment of this invention.

[0024] Figure 10 This is a top view of the vibration test bench of the present invention.

[0025] Figure 11 yes Figure 10 BB cross-sectional diagram.

[0026] Figure 12 yes Figure 10 A schematic diagram of the AA section.

[0027] In the diagram: 1. Foundation stratum; 2. Vibration isolator foundation; 3. Vibration isolation support area; 4. Adjustable support area; 5. Jack; 6. Sidewall; 7. Laser; 8. Reflector; 81. Reflection base; 82. Reflection adjustment arm; 83. Reflection ball head unit; 84. Reflection seat; 841. Lens seat; 842. Reflecting lens; 9. Settlement warning device; 91. Acquisition base; 92. Acquisition adjustment arm; 93. Acquisition ball head unit; 94. Acquisition head; 941. Acquisition seat; 942. Damping plate; 943. Converging lens; 944. Acquisition lens; 95. Fiber optic cable; 10. Vibration test bench; 11. Foundation testing pile; 12. Crossbeam; 13. Suspension rod; 14. Vibration isolator; 15. Laser beam; 16. Acquisition device; 161. Main control chip; 162. Light sensor; 163. Amplifier; 164. Switch tube; 165. LED; 166. Wireless transmission chip; 167. Wireless receiving chip; 168. Memory; 169. Acquisition chip; 160. Battery. Detailed Implementation

[0028] The vibration test bench weighs over 3500t. During construction, it is supported by multiple jacks 5 located in the adjustable support area 4. During vibration tests of tightly fitted equipment, it is supported by multiple vibration isolators 14 located in the vibration isolation support area 3. Given that uneven settlement has a significant impact on the vibration test bench of this invention, and that continuous monitoring of uneven settlement is difficult, this invention employs the following monitoring method.

[0029] Example 1: like Figure 1 , 8 In the above, a multi-point settlement monitoring system for a vibration test bench includes a laser 7, a reflector 8, and a settlement warning device 9; like Figure 1 As shown, the laser 7 is mounted on the foundation detection pile 11 and is used to emit multiple collimated laser beams; collimated laser refers to a laser beam whose beam propagation direction is highly parallel and whose divergence angle is less than a threshold after being processed by an optical system.

[0030] Multiple reflectors 8 are arranged along one sidewall 6 of the vibration test bench to reflect at least one collimated laser beam to the vicinity of the row-and-column arranged support base. The settlement warning device 9 is installed on the support foundation and is used to collect collimated laser signals. When settlement occurs and collimated laser cannot be collected, a signal is sent.

[0031] Preferred solutions include Figure 8 , 9In sections 11 and 12, foundation testing pile 11 is driven into bedrock. Typically, foundation testing pile 11 does not experience settlement. In this example, foundation testing pile 11 is positioned outside the sidewall 6, near a corner of the vibration test bench 10. The foundation testing pile 11 serves as the settlement benchmark for the entire vibration test bench 10's supporting foundation. A crossbeam 12 is located at the top of the foundation testing pile 11, extending beyond the end of the sidewall 6 and fixedly connected to a suspension rod 13. The suspension rod 13 extends downwards from the gap between the vibration test bench 10 and the sidewall 6, approaching the foundation stratum 1. The foundation stratum 1 is the foundation for the vibration isolator foundation 2 and the jack 5. The sidewall 6 is the wall surrounding the vibration test bench 10.

[0032] like Figure 11 In the middle, the laser 7 is set at the end of the crossbeam 12. The laser 7 emits multiple collimated laser beams in the direction of the foundation stratum 1. A reflective lens is provided at the bottom end of the suspension rod 13 to reflect the collimated laser beams to the horizontal direction. The collimated laser beams in the horizontal direction are along the direction of one side of the bottom of the vibration test bench 10.

[0033] Alternatively, in an alternative configuration, laser 7 is positioned at the bottom end of suspension rod 13, emitting multiple collimated laser beams in a horizontal direction. This configuration reduces interference from the primary reflector, but operators need to descend to the bottom of vibration test bench 10 for adjustment and maintenance.

[0034] Preferred solutions include Figures 2-4 In the middle, the reflector 8 includes a reflector base 81, a reflector adjustment arm 82, and a reflector seat 84; The reflective base 81 is fixedly connected to the side wall 6, and the reflective adjustment arm 82 is connected to the reflective base 81. The adjustable free end of the reflective adjustment arm 82 is provided with a reflective seat 84, which is equipped with a lens holder 841. A reflective lens 842 is fixedly mounted on the lens holder 841. The reflective adjustment arm 82 adopts an adjustable structure, such as... Figure 2 As shown, the various reflective ball head units 83 are connected end to end to form an articulated arm structure with damped and adjustable posture. This structure allows for convenient and flexible adjustment of the posture of the reflective base 84, thereby adjusting the angle of the reflective lens 842.

[0035] Laser 7 emits multiple collimated laser beams, and the position of reflector 8 corresponds to one of these collimated laser beams. In this example, the collimated laser beams are set according to the number of columns of the supporting foundation, such as... Figure 8 As shown, during the construction process, 8 rows of jacks 5 need to be arranged, so there are 8 collimated laser beams and 8 corresponding reflectors 8, which reflect one collimated laser beam to a row of jacks 5, specifically to the cylinder of the jack 5 or the steel pad at the bottom of the jack 5.

[0036] Example 2: Alternatively, in an alternative scheme, the laser 7 emits multiple collimated laser beams, and the reflectors 8 are divided into multiple groups, each group corresponding to a collimated laser beam. In each group of reflectors 8, except for the last reflecting lens 842, the remaining reflecting lenses 842 are beam-splitting reflecting lenses that partially reflect and partially transmit light.

[0037] In the preferred embodiment, the beam splitting ratio of the beam-splitting reflector is 1:1 to 4. In this example, the number of lasers 7 can be reduced, especially in confined spaces where setting up a larger number of lasers 7 is difficult. The beam-splitting reflector scheme allows for the reduction of the number of lasers 7 to two. Each reflector 842 employs a 1:4 beam splitting scheme, meaning the first reflector 842 reflects 20% of the laser while allowing 80% to pass through. The subsequent two reflectors 842 employ 1:4 and 1:3 schemes respectively, and the last reflector 842 is a total internal reflection mirror. This scheme requires only two lasers 7 to achieve eight collimated laser beams through beam splitting. This solution is suitable for placement in confined spaces and is also more cost-effective.

[0038] Example 3: Preferred solutions include Figure 3 , 6 In the middle, the settlement warning device 9 includes a collection base 91, a collection adjustment arm 92, a collection head 94, and a collector 16; The acquisition base 91 is fixed on the support foundation. The acquisition adjustment arm 92 is connected to the acquisition base 91. The adjustable free end of the acquisition adjustment arm 92 is equipped with an acquisition head 94, which is connected to the acquisition device 16 via an optical fiber 95. Figure 3 As shown, the various acquisition ball head units 93 are connected end to end to form an articulated arm structure with damped and adjustable posture. This structure allows for convenient and flexible adjustment of the posture of the reflector base 84, thereby adjusting the angle and position of the acquisition head 94.

[0039] Preferred solutions include Figure 5In this structure, the acquisition head 94 includes an acquisition base 941 connected to an acquisition adjustment arm 92. An acquisition lens 944 is located at one end of the acquisition base 941. An optical fiber 95 passes through the acquisition base 941. A converging lens 943 is located between the end of the optical fiber 95 and the acquisition lens 944. The converging lens 943 is preferably an aspherical lens, such as those manufactured by Edmont Optics or Sunny Optical. In this example, the aspherical lens is a plano-convex lens, meaning one side is a plane and the other is an aspherical convex lens. Since the reflected light from the acquisition lens 944 usually falls off-center on the converging lens 943, the edge focusing accuracy of the converging lens 943 is required to be higher. The end of the optical fiber 95 is located at the focal point of the converging lens 943. The optical fiber 95 is preferably a fiber with a large numerical aperture parameter and a large diameter. The acquisition lens 944 reflects the collimated laser light through the converging lens 943 to the end of the optical fiber 95. Figure 6 In the acquisition unit 16, a light sensor 162 is installed. The light sensor 162 collects the optical signal from the optical fiber 95. The light sensor 162 is electrically connected to the main control chip 161, and the main control chip 161 is electrically connected to the switching transistor 164. The switching transistor 164 controls the on / off state of the LED 165. The light sensor 162 can be an APD avalanche photodetector, a PIN photodetector, or a general photoelectric sensor. The main control chip 161 can be an STM32F or ATmega32 series chip. The switching transistor 164 can be a transistor, thyristor, or other components. More preferably, the laser beam uses a modulation / demodulation scheme to avoid ambient light interference. A more specific scheme is as follows... Figure 3 , 6 In this process, because settling is gradual, laser 7 emits a collimated laser beam modulated according to a preset frequency every minute. The collimated laser beam is reflected by reflector 842 and enters acquisition lens 944. Acquisition lens 944 reflects the collimated laser beam to converging lens 943, which focuses the laser beam to the focal point and transmits it to the optical fiber. This structure results in a very small overall size and light weight for the acquisition head 94, allowing it to maintain a good position and orientation at the end of acquisition adjustment arm 92. After receiving the laser signal, the light sensor 162 at the other end of the optical fiber demodulates it using the main control chip 161. The control logic of the main control chip 161 is set so that if it receives a laser beam modulation signal within a time period, it does not operate; if it does not receive a laser beam modulation signal within a time period, it initiates a control action, such as turning on switch 164 to illuminate LED 165 as an alarm. The time period of the main control chip 161 is longer than the emission interval of laser 7, for example, 1.5 to 5 minutes.

[0040] Preferred solutions include Figure 3 As shown, the top or end of the collection seat 941 of the settling alarm 9 is open so that one side of the collection lens 944 is exposed; Each settling warning device 9 has a collecting lens 944 that reflects collimated laser light in a sequentially rising or extending manner; the collimated laser light is modulated to have a certain width, for example, 1-3 mm. Unlike the transmission beam splitting scheme, the settling warning device 9 uses an area beam splitting scheme in its collecting process. In this example, the sequentially rising manner of reflecting collimated laser light is preferred.

[0041] The sequentially ascending method of reflecting collimated laser light means that the top of the lens mount 841 is open, and the top edge of the reflecting lens 842 reflects the collimated laser light. When the supporting foundation of the settlement alarm 9 settles, the settlement alarm 9 cannot collect the laser signal and triggers an alarm. In multiple sequentially arranged settlement alarms 9, the collecting lens 944 of the later settlement alarm 9 is higher than the collecting lens 944 of the earlier one. In this example, if... Figure 8 As shown, each column has 5-6 jacks 5. The acquisition lens 944 of the settlement warning device 9 near the reflector 8 approaches the bottom of the collimated laser from the top and cuts a portion of the collimated laser, for example, 1 / 6. The cut collimated laser is reflected to the optical fiber 95. This process continues, with the acquisition lens 944 of the subsequent settlement warning devices 9 rising sequentially to cut a portion of the collimated laser, ensuring that each acquisition lens 944 of the settlement warning device 9 can cut a portion of the collimated laser. With this scheme, when the supporting foundation at a certain location settles, the position of the settlement warning device 9 drops accordingly until it can no longer cut a portion of the collimated laser, thereby triggering the main control chip 161 to control the LED 165 to light up.

[0042] For vibration isolator foundation 2, the collimated laser is reflected in the same sequentially ascending manner.

[0043] For monitoring LED165, a camera can be installed at the bottom or side wall of the vibration test bench 10. This reduces the chance of personnel entering to investigate.

[0044] The solution presented in this example is cost-effective, with each monitoring node costing between 150 and 500 yuan, making it easy to implement and adapt. It is particularly suitable for settlement monitoring during construction.

[0045] Example 4: Based on Example 3, the preferred solution is as follows: Figure 7The system also includes a wireless transmission chip 166, which is electrically connected to the main control chip 161. A wireless receiving chip 167 is wirelessly connected to the wireless transmission chip 166, and is also electrically connected to the acquisition chip 169 and the memory 168. The wireless transmission can utilize the ESP32 chipset, such as ESP32-WROOM-32 or ESP32-C6, with a maximum transmission distance of 200 meters based on the WiFi 6 protocol, meeting the requirements of this example. Adding a wireless transmission solution facilitates remote collection of settlement data and enables rapid implementation of response measures. This solution adds an extra 200-500 yuan to the cost of each settlement warning device 9 node, making it suitable for long-term monitoring during experimental use after construction.

[0046] Example 5: In this example, the settlement warning device 9 is a product that can be sold separately and has the advantages of being economical and reliable. Figure 5 , 6 In the present invention, a monitoring device for a multi-point settlement monitoring system for a vibration test bench includes a settlement alarm 9 installed on a support foundation for collecting collimated laser signals. When settlement occurs and collimated laser signals cannot be collected, a signal is sent. The settlement warning device 9 includes a data collection base 91, a data collection adjustment arm 92, a data collection head 94, and a data collector 16; The acquisition base 91 is fixed on the support foundation, the acquisition adjustment arm 92 is connected to the acquisition base 91, and the adjustable free end of the acquisition adjustment arm 92 is provided with an acquisition head 94, which is connected to the acquisition device 16 through an optical fiber 95. The acquisition head 94 includes an acquisition base 941, which is connected to an acquisition adjustment arm 92. An acquisition lens 944 is provided at the end of the acquisition base 941. An optical fiber 95 is inserted into the acquisition base 941. A converging lens 943 is provided between the end of the optical fiber 95 and the acquisition lens 944. The acquisition lens 944 sends the collimated laser through the converging lens 943 to the end of the optical fiber 95 by reflection. A light sensor 162 is installed inside the collector 16. The light sensor 162 collects the light signal of the optical fiber 95. The light sensor 162 is electrically connected to the main control chip 161. The main control chip 161 is electrically connected to the switching transistor 164. The switching transistor 164 controls the LED 165 to turn on and off.

[0047] Example 6: A monitoring method using the above-mentioned multi-point settlement monitoring system for vibration test bench includes the following steps: S1, such as Figure 8 , 9In sections 11 and 12, laser 7 is installed on independent foundation testing piles 11, emitting multiple parallel collimated laser beams. Multiple reflectors 8 are installed at the bottom of the sidewall 6, with each reflector corresponding to a row of supporting foundations. The collimated laser beams are horizontally distributed to each row of supporting foundations. During construction, the supporting foundations are the individual jacks 5. During use, i.e., during vibration testing of high-end equipment, the supporting foundations are the individual vibration isolator foundations 2. Settlement warning devices 9 are installed on the supporting foundations, and the settlement warning devices 9 collect the signals from the collimated laser beams. S2. Each column of acquisition lenses 944 reflects the collimated laser in a sequentially rising or extending manner; in this example, the acquisition lenses 944 reflect the collimated laser in a sequentially rising manner, and the reflected laser signal is collected by optical fiber 95. Preferably, the collimated laser is frequency modulated, that is, the collimated laser is a set of pulsed lasers, and the pulse frequency is used to avoid interference from ambient light. More preferably, a coating is provided on the reflecting lenses and the lens, and the coating is matched with the wavelength of the laser, thereby reducing interference from ambient light. When uneven settlement occurs in the supporting foundation, the acquisition lenses 944 leave the state of cutting the laser beam and cannot reflect the collimated laser.

[0048] S3. When a collimated laser signal is received, the main control chip 161 remains inactive. If no collimated laser signal is received for a period of time, the main control chip 161 controls LED 165 to turn on. LED 165 is observed via a camera positioned below the vibration test bench 10. If LED 165 lights up, it indicates an uneven settlement location, requiring appropriate measures. These measures include adjusting the lifting amount of the jack 5 or adjusting the pads of the vibration isolator foundation 2 to compensate for uneven settlement. These measures can mitigate the risks associated with uneven settlement.

[0049] Alternatively, the main control chip 161 can send warning signals wirelessly. The advantage of this solution is its remote monitoring capability, especially for decision-making, enabling rapid response. It is suitable for long-term monitoring after construction is completed.

[0050] Although this application has been described in conjunction with specific features and embodiments, it is obvious that various modifications and combinations can be made thereto without departing from the spirit and scope of this application. Accordingly, this specification and drawings are merely illustrative descriptions of the application as defined by the appended claims, and are considered to cover any and all modifications, variations, combinations, or equivalents within the scope of this application. Clearly, those skilled in the art can make various alterations and modifications to this application without departing from its scope. Thus, if such modifications and modifications fall within the scope of the claims and their equivalents, this application is also intended to include such modifications and modifications.

Claims

1. A multi-point settlement monitoring system for a vibration test bench, characterized in that: Includes a laser (7), a reflector (8), and a settlement warning device (9); A laser (7) is installed on the foundation detection pile (11) to emit multiple collimated laser beams; Reflectors (8) are arranged in multiple units along the sidewall (6) of one side of the vibration test bench to reflect at least one collimated laser beam to the vicinity of the row-and-column arranged support base; The settlement warning device (9) is installed on the support foundation and is used to collect collimated laser signals. When settlement occurs and collimated laser cannot be collected, a signal is sent.

2. The multi-point settlement monitoring system for vibration test benches according to claim 1, characterized in that: The foundation test pile (11) is driven into the bedrock. The top of the foundation test pile (11) is provided with a crossbeam (12). The end of the crossbeam (12) extends over the side wall (6) and is fixedly connected to the suspension rod (13). The suspension rod (13) extends downward close to the foundation stratum (1). The laser (7) is set at the end of the crossbeam (12). The laser (7) emits multiple collimated laser beams in the direction of the foundation stratum (1). A reflective lens is provided at the bottom end of the suspension rod (13) to reflect the collimated laser beams to the horizontal direction. Alternatively, a laser (7) can be installed at the bottom end of the suspension rod (13) to emit multiple collimated laser beams in the horizontal direction.

3. The multi-point settlement monitoring system for vibration test benches according to claim 1, characterized in that: The reflector (8) includes a reflector base (81), a reflector adjustment arm (82), and a reflector body (84). The reflective base (81) is fixedly connected to the side wall (6), the reflective adjustment arm (82) is connected to the reflective base (81), the adjustable free end of the reflective adjustment arm (82) is provided with a reflective seat (84), the reflective seat (84) is provided with a lens seat (841), and the lens seat (841) is fixedly provided with a reflective lens (842). The laser (7) emits multiple collimated laser beams, and the position of the reflector (8) corresponds to one of the collimated laser beams; Alternatively, the laser (7) emits multiple collimated laser beams, and the reflectors (8) are divided into multiple groups, each group corresponding to a collimated laser beam. In each group of reflectors (8), except for the last reflecting lens (842), the remaining reflecting lenses (842) are beam-splitting reflecting lenses that partially reflect and partially transmit light.

4. The multi-point settlement monitoring system for vibration test benches according to claim 3, characterized in that: The beam splitting ratio of the beam-splitting reflector is 1:1 to 4.

5. The multi-point settlement monitoring system for vibration test bench according to claim 1 or 3, characterized in that: The settlement warning device (9) includes a collection base (91), a collection adjustment arm (92), a collection head (94), and a collector (16); The acquisition base (91) is fixed on the support base. The acquisition adjustment arm (92) is connected to the acquisition base (91). The adjustable free end of the acquisition adjustment arm (92) is provided with an acquisition head (94). The acquisition head (94) is connected to the acquisition device (16) through an optical fiber (95).

6. The multi-point settlement monitoring system for vibration test benches according to claim 5, characterized in that: The acquisition head (94) includes an acquisition base (941), which is connected to an acquisition adjustment arm (92). An acquisition lens (944) is provided at the end of the acquisition base (941). An optical fiber (95) is inserted into the acquisition base (941). A converging lens (943) is provided between the end of the optical fiber (95) and the acquisition lens (944). The acquisition lens (944) sends the collimated laser through the converging lens (943) to the end of the optical fiber (95) by reflection. A light sensor (162) is provided in the collector (16). The light sensor (162) collects the light signal of the optical fiber (95). The light sensor (162) is electrically connected to the main control chip (161). The main control chip (161) is electrically connected to the switch tube (164). The switch tube (164) controls the LED (165) to turn on and off.

7. The multi-point settlement monitoring system for vibration test benches according to claim 6, characterized in that: It also includes a wireless transmission chip (166), which is electrically connected to the main control chip (161), a wireless receiving chip (167) which is wirelessly connected to the wireless transmission chip (166), and a wireless receiving chip (167) which is electrically connected to the acquisition chip (169) and the memory (168).

8. The multi-point settlement monitoring system for vibration test benches according to claim 6 or 7, characterized in that: The top or end of the collection seat (941) of the settling alarm (9) is open so that one side of the collection lens (944) is exposed; The collecting lens (944) of each settlement warning device (9) reflects the collimated laser in a manner that rises or extends in sequence; The method of reflecting collimated laser in a sequentially ascending manner means that the top of the lens holder (841) is open, and the top edge of the reflecting lens (842) reflects the collimated laser. When the supporting foundation where the settlement alarm (9) is located settles, the settlement alarm (9) cannot collect the laser signal and the alarm is activated. Among the multiple settlement alarms (9) arranged in sequence, the collecting lens (944) of the later settlement alarm (9) is higher than the collecting lens (944) of the earlier one.

9. A monitoring device for a multi-point settlement monitoring system of a vibration test bench, characterized in that: The settlement warning device (9) is installed on the support foundation and is used to collect collimated laser signals. When settlement occurs and collimated laser cannot be collected, a signal is sent. The settlement warning device (9) includes a collection base (91), a collection adjustment arm (92), a collection head (94), and a collector (16); The acquisition base (91) is fixed on the support base, the acquisition adjustment arm (92) is connected to the acquisition base (91), and the adjustable free end of the acquisition adjustment arm (92) is provided with an acquisition head (94). The acquisition head (94) is connected to the acquisition device (16) through an optical fiber (95). The acquisition head (94) includes an acquisition base (941), which is connected to an acquisition adjustment arm (92). An acquisition lens (944) is provided at the end of the acquisition base (941). An optical fiber (95) is inserted into the acquisition base (941). A converging lens (943) is provided between the end of the optical fiber (95) and the acquisition lens (944). The acquisition lens (944) sends the collimated laser through the converging lens (943) to the end of the optical fiber (95) by reflection. A light sensor (162) is provided in the collector (16). The light sensor (162) collects the light signal of the optical fiber (95). The light sensor (162) is electrically connected to the main control chip (161). The main control chip (161) is electrically connected to the switch tube (164). The switch tube (164) controls the LED (165) to turn on and off.

10. A monitoring method using the multi-point settlement monitoring system of the vibration test bench according to any one of claims 1 to 8, characterized in that: Includes the following steps: S1. Set the laser (7) on the independent foundation detection pile (11) and emit multiple parallel collimated laser beams. Set multiple reflectors (8) to horizontally distribute the collimated laser beams to the support foundation of each column. Set a settlement warning device (9) on the support foundation. The settlement warning device (9) collects the signal of the collimated laser beam. S2, The acquisition lenses (944) in each column reflect the collimated laser in a manner that they rise or extend in sequence; S3. When the collimated laser signal is received, the main control chip (161) does not operate. When the collimated laser signal is not received for a period of time, the main control chip (161) controls the LED (165) to turn on. Alternatively, the main control chip (161) can send a warning signal wirelessly.

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