Pier column maintenance device and method under multi-dimensional parameter combined control

Abstract

The invention discloses a pier column maintenance device and method under multi-dimensional parameter combined control, and relates to the field of pier column maintenance, the pier column maintenance device comprises a vertical frame, a spraying assembly and film covering assemblies, the spraying assembly is fixedly installed at the top of the vertical frame, the outer wall of the spraying assembly is sleeved with a movable frame, and the film covering assemblies are fixedly installed on the two sides of the movable frame; the bottom of the vertical frame is fixedly connected with a supporting base. A historical data learning unit stores a large amount of historical maintenance data, the data comprise environment data and corresponding maintenance effect data, rules are mined from the historical data, when a certain environment condition similar to the history is encountered, the system refers to a historical maintenance scheme and carries out fine adjustment in combination with the current actual situation, and the maintenance effect is improved. Starting and equipment operation parameters of the maintenance execution module are determined, and as time goes on, the system continuously learns new data, optimizes self decisions and improves the maintenance effect.

Description

Technical Field

[0001] The present invention relates to the technical field of pier column maintenance, and in particular to a pier column maintenance device and method under multi-dimensional parameter joint control. Background Art

[0002] Pier column maintenance is a key link in ensuring the concrete performance and structural stability of bridge pier columns. After the concrete pouring is completed, the cement hydration reaction requires suitable environmental conditions, and the maintenance effect determines the strength of the pier column.

[0003] For example, the "A bridge pier maintenance device" with publication number CN220888328U includes: a base frame mechanism, a lifting mechanism, a stabilizing mechanism and a protective mechanism. The lifting mechanism is arranged on the top of the base frame mechanism, the protective mechanism is arranged on the top of the lifting mechanism, and the stabilizing mechanism is arranged inside the base frame mechanism. The base frame mechanism includes a base plate, and universal wheels are fixedly installed at the bottom of the base plate near the four corners.

[0004] However, in the existing technology, the existing pier column maintenance technology mainly relies on traditional watering maintenance, spraying curing agents and covering with plastic films. Although it can meet the needs of concrete hardening, it generally has problems such as low maintenance efficiency, high cost, and uneven maintenance quality. Especially in the complex coastal environment, traditional technology is difficult to achieve precise maintenance, resulting in reduced durability of pier column structures, increased cracks, and even threats to bridge safety and service life. In addition, the existing pier column maintenance technology mostly focuses on the regulation of single environmental parameters (such as temperature and humidity), and there is little research on the comprehensive impact of multi-factor coupling (such as wind force, light, etc.). In addition, the current control strategy is simple and even requires manual control. Summary of the Invention

[0005] The purpose of the present invention is to provide a pier maintenance device and method under the joint control of multi-dimensional parameters to solve the problem raised in the above background technology that traditional technology is difficult to achieve precise maintenance in complex coastal environments, resulting in reduced durability of pier structures, increased cracks, and even threats to bridge safety and service life. In addition, existing pier maintenance technologies mostly focus on the regulation of single environmental parameters (such as temperature and humidity), and there is little research on the comprehensive impact of multi-factor coupling (such as wind, light, etc.). In addition, the current control strategy is simple and even requires manual control.

[0006] To achieve the above objectives, the present invention provides the following technical solutions: a pier column maintenance device under multi-dimensional parameter joint control, comprising a vertical frame, a spray assembly, and a film covering assembly, wherein the spray assembly is fixedly mounted on the top of the vertical frame, a movable frame is sleeved on the outer wall of the spray assembly, the film covering assembly is fixedly mounted on both sides of the movable frame, and the bottom of the vertical frame is fixedly connected to a support base;

[0007] The spray assembly includes a support arm, a spray pipe is provided inside the support arm, a nozzle is opened on one side of the support arm, and an electric heating plate is fixedly installed on the lower surface of the support arm;

[0008] The coating assembly includes a rotating rod and a positioning rod. One end of the rotating rod is rotatably connected to a connector. The positioning rod is fixedly installed on the side of the movable frame. The positioning rod and the movable frame are perpendicular to each other. The connector is sleeved on the outer wall of the positioning rod. A protective film is wrapped around the outer wall of the rotating rod.

[0009] Preferably, a positioning block is fixedly installed on the top of the vertical frame, a servo motor is arranged inside the positioning block, and a gear is fixedly installed on the output shaft of the servo motor, and a first connecting gear is fixedly installed on the end of the support arm, and the first connecting gear is meshed with the gear of the output shaft of the servo motor.

[0010] Preferably, one end of the support arm is rotatably connected to the inside of the positioning block, and a notch is provided at the junction of the positioning block and the support arm. When in use, the support arm surrounds both sides of the pier column, and the servo motor pushes the support arm close to the pier column by engaging the first connecting gear, and then sprays the curing fluid onto the surface of the pier column.

[0011] Preferably, a receiving groove is opened inside the positioning rod, and a screw transmission assembly is fixedly installed inside the receiving groove. The screw in the screw transmission assembly is threadedly connected to the connector. When in use, the screw transmission assembly pushes the connector to move along the direction of the positioning rod to adjust the position of the rotating rod.

[0012] Preferably, a positioning plate is fixedly installed on one side of the movable frame, a reduction motor is fixedly installed on the side of the positioning plate, a second connecting gear is fixedly installed on the output shaft of the reduction motor, a gear rod is fixedly installed on the outer wall of the vertical frame, and the second connecting gear is meshed with the gear rod. When in use, the reduction motor drives the second connecting gear, and the reaction force of the gear rod on the second connecting gear is used to drive the entire movable frame to move upward in the direction of the vertical frame. A roller is rotatably installed on the inner wall of the movable frame, and the roller is attached to the vertical frame.

[0013] A pier column maintenance method under multi-dimensional parameter joint control uses a control system, which includes the following contents:

[0014] System architecture: used to unify the dispersed sensors, controllers, actuators and software, and clarify the work content of each component;

[0015] Control strategy: Through dynamic decision-making and optimization, environmental data is converted into precise maintenance actions.

[0016] Preferably, the system architecture includes an environmental monitoring module and a maintenance execution module;

[0017] The environmental monitoring module is used to collect environmental data in real time and provide a basis for the maintenance execution module;

[0018] The maintenance execution module executes the instructions corresponding to the data monitored by the environmental monitoring module and performs actual maintenance operations on the bridge piers.

[0019] Preferably, the environmental monitoring module includes a wind sensor, a light sensor, and a temperature and humidity sensor;

[0020] The wind sensor uses a three-cup wind speed sensor and is installed in an open area on top of the bridge pier;

[0021] The light sensor uses a photodiode light sensor and is installed on the sunny side of the pier;

[0022] The temperature and humidity sensor uses a temperature and humidity integrated sensor that combines a capacitive humidity sensor and a thermistor temperature sensor, and is installed at different heights of the pier.

[0023] Preferably, the maintenance execution module includes a spray maintenance unit, a film protection unit and a sunshade protection unit;

[0024] The spray curing unit and the sunshade protection unit are used to control the spray assembly in combination, wherein the spray curing unit is used to control the delivery of curing liquid, and the sunshade protection unit is used to assist the spray curing unit. When only sunshade is required, the spray curing unit stops delivering curing liquid.

[0025] The film protection unit is used to control the film covering component to cover the surface of the pier.

[0026] Preferably, the control strategy includes a multi-factor comprehensive analysis algorithm unit, a dynamic parameter adjustment unit, a historical data learning unit, and a transfer learning integration unit;

[0027] The multi-factor comprehensive analysis algorithm unit abandons the single factor threshold judgment and uses the monitoring data of wind sensors, light sensors, and temperature and humidity sensors for comprehensive analysis;

[0028] The dynamic parameter adjustment algorithm dynamically adjusts the equipment operating parameters according to different curing stages (such as the initial setting period, final setting period, strength growth period, etc. of concrete);

[0029] The historical data learning unit stores a large amount of historical maintenance data, including environmental data and corresponding maintenance effect data, and mines patterns from these historical data;

[0030] The transfer learning integration unit extracts features from the maintenance data of the historical data learning unit to form a knowledge graph. When faced with a new bridge pier maintenance task, if the pier's environment, concrete type and other characteristics are similar to certain cases in the historical data, relevant knowledge is extracted from the existing knowledge graph and transferred to the current maintenance decision model.

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

[0032] 1. In the present invention, the spray assembly is located at the highest point of the vertical frame. During maintenance, the spray assembly sprays the curing liquid onto the top of the pier column, which flows to the bottom along the surface of the pier column under the action of gravity, so that the curing liquid covers the entire pier column. The lower surface of the support arm is provided with an electric heating plate to block sunlight and strong wind. In the process of the curing liquid flowing along the pier column, the evaporation rate of the curing liquid is slowed down by blocking sunlight. The isolation of strong wind can prevent the curing liquid from being blown away by strong wind, slow down the drying speed of the curing liquid, and improve the utilization rate of the curing liquid. In actual use, the movable frame is used to adjust the height of the film covering assembly to ensure that the film covering assembly can cover the entire pier column with the film body.

[0033] 2. In the present invention, the positioning block is used to determine the position of the support arm. During installation, the two support arms are in an unfolded state to avoid collision with the pier. During use, the servo motor built into the positioning block drives the support arm to rotate so that the support arm surrounds the pier to ensure that the nozzle is facing the pier. A first connecting gear is provided at the end of the support arm, and the first connecting gear is meshed with the gear of the servo motor output shaft. During use, the support arm is pushed to rotate by meshing the first connecting gear. The support arm is installed in a horizontal state inside the positioning block, and a notch is provided in the positioning block to provide sufficient space for the support arm to move. A screw drive assembly is provided in the accommodating groove, and the screw in the screw drive assembly is threadedly connected to the connector. During its operation, the screw will be driven to adjust the position of the connector on the positioning rod, so that the rotating rod is close to the pier to fit the membrane body to the pier surface.

[0034] 3. In the present invention, the historical data learning unit stores a large amount of historical maintenance data, including environmental data and corresponding maintenance effect data, and mines patterns from this historical data. For example, when encountering environmental conditions similar to those in history, the system refers to the historical maintenance plan and fine-tunes it in combination with the current actual situation to determine the startup of the maintenance execution module and the equipment operating parameters. Over time, the system continuously learns new data, optimizes its own decisions, and improves maintenance effects. The transfer learning integration unit extracts features from the maintenance data of the historical data learning unit to form a knowledge graph. Although different bridges are different, the environmental factors and maintenance requirements faced during maintenance have commonalities. After accumulating a large amount of bridge maintenance data, the system forms a knowledge system. When faced with the maintenance task of a new bridge pier, if its environmental characteristics, concrete type, etc. are similar to those of a previous bridge, the transfer learning algorithm can quickly extract relevant knowledge, transfer the past maintenance strategy and equipment operating parameters, and combine them with the actual conditions of the new bridge pier, such as size and concrete mix ratio, to make fine-tuned decisions for the new task, thereby improving the efficiency and accuracy of maintenance decisions. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 This is a schematic diagram of the three-dimensional structure of a pier column maintenance device under multi-dimensional parameter joint control of the present invention;

[0036] Figure 2 A side view of a pier column maintenance device under multi-dimensional parameter joint control according to the present invention;

[0037] Figure 3 This is a front view of a pier column maintenance device under multi-dimensional parameter joint control according to the present invention;

[0038] Figure 4 This is a structural diagram of a vertical frame and a movable frame of a pier column maintenance device under multi-dimensional parameter joint control of the present invention;

[0039] Figure 5 This is an enlarged schematic diagram of the structure of part A in the figure of the present invention;

[0040] Figure 6 This is a schematic diagram of the three-dimensional structure of the support arm and the first connecting gear of the pier column maintenance device under the multi-dimensional parameter joint control of the present invention.

[0041] In the figure: 1. Vertical frame; 2. Spray assembly; 3. Movable frame; 4. Laminating assembly; 5. Support base; 6. Positioning block; 7. Gear rod; 8. Positioning plate; 9. Notch; 10. Roller; 11. Second connecting gear; 12. Reducer motor; 21. Support arm; 22. Nozzle; 23. Heating plate; 24. First connecting gear; 41. Rotating rod; 42. Positioning rod; 43. Receiving groove; 44. Screw drive assembly; 45. Connector. DETAILED DESCRIPTION

[0042] 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 implementation regulations described are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0043] Example 1: Reference Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 and Figure 6 As shown: A pier column maintenance device and method under multi-dimensional parameter joint control, including a vertical frame 1, a spray assembly 2 and a film covering assembly 4. The spray assembly 2 is fixedly installed on the top of the vertical frame 1. A movable frame 3 is sleeved on the outer wall of the spray assembly 2. The film covering assembly 4 is fixedly installed on both sides of the movable frame 3. The bottom of the vertical frame 1 is fixedly connected to a support base 5.

[0044] The spray assembly 2 includes a support arm 21, a spray pipe is provided inside the support arm 21, a nozzle 22 is opened on one side of the support arm 21, and an electric heating plate 23 is fixedly installed on the lower surface of the support arm 21;

[0045] The coating assembly 4 includes a rotating rod 41 and a positioning rod 42. One end of the rotating rod 41 is rotatably connected to a connector 45. The positioning rod 42 is fixedly installed on the side of the movable frame 3. The positioning rod 42 and the movable frame 3 are perpendicular to each other. The connector 45 is sleeved on the outer wall of the positioning rod 42. A protective film is wrapped around the outer wall of the rotating rod 41.

[0046] In this embodiment, the vertical frame 1 is mounted on a support base 5 and consists of multiple frames. When maintaining the pier, the number of frames is adjusted according to the height of the pier. The support base 5 is fixed to the side of the pier, and the vertical frame 1 is parallel to the pier. The spray assembly 2 is located at the highest point of the vertical frame 1. During maintenance, the spray assembly 2 sprays the curing liquid onto the top of the pier. Under the action of gravity, the curing liquid flows along the surface of the pier to the bottom, allowing the curing liquid to cover the entire pier.

[0047] The main structure of the spray assembly 2 is the support arm 21. The support arm 21 is provided with a spray pipe inside. The spray pipe is arranged along the inner side of the vertical frame 1. When in use, the curing liquid enters the spray pipe and is sprayed from the nozzle 22 onto the surface of the pier. The support arm 21 has a multi-bend structure and can surround half of the pier. After curing one side, the support base 5 is moved to the side of the pier to perform curing on the other two sides.

[0048] The lower surface of the support arm 21 is provided with an electric heating plate 23 to block sunlight and strong wind. When the curing liquid flows along the pier, the evaporation rate of the curing liquid is slowed down by blocking sunlight. The strong wind can prevent the curing liquid from being blown away by strong wind, slowing the drying speed of the curing liquid and improving the utilization rate of the curing liquid.

[0049] The coating assembly 4 is installed on the movable frame 3, and the rotating rod 41 is rotatably installed on the connecting head 45. When it is necessary to coat the pier with film, the movable frame 3 drives the entire coating assembly 4 to move upward along the vertical frame 1 to change the height of the coating assembly 4. During the movement of the coating assembly 4, the rotating rod 41 is adjusted to the side of the pier so that the film body on the rotating rod 41 contacts the pier. Then, during the movement of the movable frame 3, the film body can be covered on the pier.

[0050] Example 2: According to Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 and Figure 6 As shown, a positioning block 6 is fixedly installed on the top of the vertical frame 1, a servo motor is provided inside the positioning block 6, and a gear is fixedly installed on the output shaft of the servo motor, and a first connecting gear 24 is fixedly installed on the end of the support arm 21, and the first connecting gear 24 is engaged with the gear of the servo motor output shaft. One end of the support arm 21 is rotatably connected to the inside of the positioning block 6, and a notch 9 is provided at the junction of the positioning block 6 and the support arm 21. When in use, the support arm 21 surrounds both sides of the pier column, and the servo motor pushes the support arm 21 close to the pier column by engaging the first connecting gear 24, and then sprays the curing fluid onto the surface of the pier column.

[0051] In this embodiment, the positioning block 6 is used to determine the position of the support arm 21. When installed, the two support arms 21 are in an extended state to avoid collision with the pier column. When in use, the servo motor built into the positioning block 6 drives the support arm 21 to rotate so that the support arm 21 surrounds the pier column and ensures that the nozzle 22 faces the pier column.

[0052] A first connecting gear 24 is provided at the end of the support arm 21, and the first connecting gear 24 is engaged with the gear of the servo motor output shaft. When in use, the support arm 21 is pushed to rotate by engaging the first connecting gear 24. The support arm 21 is installed in a horizontal state inside the positioning block 6, and a notch 9 is provided in the positioning block 6 to provide sufficient space for the support arm 21 to move.

[0053] Example 3: According to Figure 1 、 Figure 4 and Figure 5As shown, the interior of the positioning rod 42 is provided with a receiving groove 43, and a screw drive assembly 44 is fixedly installed inside the receiving groove 43. The screw in the screw drive assembly 44 is threadedly connected to the adapter 45. When in use, the screw drive assembly 44 pushes the adapter 45 to move along the direction of the positioning rod 42 to adjust the position of the rotating rod 41;

[0054] A positioning plate 8 is fixedly installed on one side of the movable frame 3, and a reduction motor 12 is fixedly installed on the side of the positioning plate 8. The output shaft of the reduction motor 12 is fixedly installed with a second connecting gear 11. A gear rod 7 is fixedly installed on the outer wall of the vertical frame 1, and the second connecting gear 11 is meshed with the gear rod 7. When in use, the reduction motor 12 drives the second connecting gear 11, and the reaction force of the gear rod 7 on the second connecting gear 11 is used to drive the entire movable frame 3 to move in the direction of the vertical frame 1. A roller 10 is rotatably installed on the inner wall of the movable frame 3, and the roller 10 is attached to the vertical frame 1.

[0055] In this embodiment, a screw drive assembly 44 is provided in the accommodating groove 43. The screw in the screw drive assembly 44 is threadedly connected to the adapter 45. During its operation, the screw is driven to adjust the position of the adapter 45 on the positioning rod 42, so that the rotating rod 41 is close to the pier column and the membrane body is attached to the surface of the pier column. The adapter 45 is sleeved on the positioning rod 42 and threadedly connected to the screw drive assembly 44, which can ensure its own structural stability. At the same time, the rotating rod 41 and the adapter 45 are rotationally connected, which will not affect the normal contact between the membrane body and the pier column during actual use.

[0056] The positioning rod 42 is installed on the movable frame 3. During actual use, the movable frame 3 is used to adjust the height of the coating assembly 4 to ensure that the coating assembly 4 can cover the entire pier with the film. A reduction motor 12 is provided on the positioning plate 8 on the side of the movable frame 3. The second connecting gear 11 at the output end of the reduction motor 12 is meshed with the gear rod 7. When the reduction motor 12 is operating, the reaction force of the gear rod 7 on the second connecting gear 11 will force the entire movable frame 3 to move upward or downward along the vertical frame 1, thereby achieving the purpose of adjusting the height of the coating assembly 4. A roller 10 is provided on the inner wall of the movable frame 3 to reduce friction.

[0057] Example 4: A pier column maintenance method under multi-dimensional parameter joint control, the method uses a control system, the control system includes the following contents:

[0058] System architecture: used to unify the sensors, controllers and actuators scattered throughout the organization with software, clarify the work content of each component, control strategy: through dynamic decision-making and optimization, the environmental data is converted into precise maintenance actions, and the maintenance process of the bridge piers is automatically controlled through real-time monitoring of wind, light, temperature and humidity environmental factors, ensuring that the piers are maintained under the best environmental conditions, improving the quality and efficiency of maintenance, and extending the service life of the bridge. The system architecture includes an environmental monitoring module and a maintenance execution module. The environmental monitoring module is used to collect environmental data in real time and provide a basis for the maintenance execution module. The maintenance execution module executes the instructions corresponding to the data monitored by the environmental monitoring module and performs actual maintenance operations on the bridge piers. The environmental monitoring module includes a wind sensor, a light sensor and a temperature and humidity sensor. The wind sensor adopts a three-cup wind speed sensor, which is installed in an open position on the top of the bridge pier and can accurately measure 0.3-60m / s wind speed range, can sense the wind size and direction in real time, the light sensor uses a photodiode light sensor, installed on the sun-facing side of the pier, can accurately measure the light intensity of 0-200000lx, and provide light data support for the system, the temperature and humidity sensor uses a temperature and humidity integrated sensor that combines a capacitive humidity sensor and a thermistor temperature sensor, installed at different heights of the pier, with a measurement range of temperature -40℃-80℃ and humidity 0%-100%RH, which can accurately obtain the temperature and humidity conditions around the pier, the maintenance execution module includes a spray maintenance unit, a coating protection unit and a sunshade protection unit, the spray maintenance unit and the sunshade protection unit are used to combine and control the spray component 2, wherein the spray maintenance unit is used to control the delivery of the curing liquid, and the sunshade protection unit is used to assist the spray maintenance unit. When only shading is required, the spray maintenance unit stops delivering the curing liquid, and the coating protection unit is used to control the coating component 4 to coat the surface of the pier;

[0059] The control strategy includes a multi-factor comprehensive analysis algorithm unit, a dynamic parameter adjustment unit, a historical data learning unit and a transfer learning integration unit. The multi-factor comprehensive analysis algorithm unit abandons the single factor threshold judgment and uses the monitoring data of wind sensors, light sensors and temperature and humidity sensors for comprehensive analysis. Taking temperature and humidity as an example, a temperature and humidity coupling model is established, and the temperature and humidity data are input into the model. When the temperature rises and the humidity decreases, the model calculates a comprehensive impact value based on the pre-set weights and the change trends of the two. If the value exceeds the appropriate maintenance range, the system will start the spray maintenance equipment. Regarding the relationship between wind and temperature, in a strong wind and low temperature environment, the power of the electric heating plate 23 is increased to generate more heat to maintain the maintenance temperature. The dynamic parameter adjustment algorithm dynamically adjusts the equipment operating parameters according to different maintenance stages such as the initial setting period, final setting period and strength growth period of concrete. In the initial setting period of concrete, it is more sensitive to changes in temperature and humidity. At this time, the acquisition frequency of the temperature and humidity sensor is increased, and the control accuracy is improved. For example, the water spraying amount and water spraying interval of the spray component 2 are dynamically adjusted according to the water demand characteristics of the concrete in the initial setting period. The water evaporates quickly in the early stage and the water spraying interval is short. , the amount of water sprayed is large. As the initial setting process progresses, the water spraying interval is gradually extended and the amount of water sprayed is reduced. The historical data learning unit stores a large amount of historical maintenance data, which includes environmental data and corresponding maintenance effect data, and mines rules from these historical data. For example, when encountering similar environmental conditions in history, the system refers to the historical maintenance plan and fine-tunes it in combination with the current actual situation to determine the startup of the maintenance execution module and the equipment operation parameters. As time goes by, the system continuously learns new data, optimizes its own decision-making, improves maintenance effects, and integrates transfer learning into the unit's historical data. The maintenance data of the learning unit is feature extracted to form a knowledge graph. Although different bridges are different, the environmental factors and maintenance needs faced during maintenance are common. After accumulating a large amount of bridge maintenance data, the system forms a knowledge system. When faced with the maintenance task of a new bridge pier, if its environmental characteristics, concrete type, etc. are similar to those of a previous bridge, the transfer learning algorithm can quickly extract relevant knowledge, migrate past maintenance strategies and equipment operating parameters, and combine them with the actual situation of the new bridge pier, such as size, concrete mix ratio, etc., and use them for new task decision-making after fine-tuning, thereby improving the efficiency and accuracy of maintenance decisions.

[0060] The method of use and working principle of this device are as follows: when maintaining a pier, the number of frames is adjusted according to the height of the pier. During maintenance, when in use, the maintenance liquid enters the spray pipe and is then sprayed onto the surface of the pier from the nozzle 22. Under the action of gravity, the maintenance liquid flows along the surface of the pier to the bottom, allowing the maintenance liquid to cover the entire pier. The support arm 21 has a multi-bend structure that can surround half of the pier. After the maintenance of that side is completed, the support base 5 is moved to the side of the pier to perform maintenance on the other two sides.

[0061] The lower surface of the support arm 21 is provided with an electric heating plate 23 to block sunlight and strong wind. When the curing liquid flows along the pier, the evaporation rate of the curing liquid is slowed down by blocking sunlight. The strong wind can prevent the curing liquid from being blown away by strong wind, slowing the drying speed of the curing liquid and improving the utilization rate of the curing liquid.

[0062] When it is necessary to coat the pier column with film, when the reduction motor 12 is in operation, the reaction force of the gear rod 7 on the second connecting gear 11 will force the entire movable frame 3 to move upward or downward along the vertical frame 1, so as to adjust the height of the coating assembly 4. During the operation of the screw transmission assembly 44, the screw will be driven to adjust the position of the connector 45 on the positioning rod 42, so that the rotating rod 41 is close to the pier column and the film body is attached to the surface of the pier column. During the movement of the movable frame 3, the film body on the rotating rod 41 can be completely covered on the pier column.

[0063] The multi-factor comprehensive analysis algorithm unit abandons the judgment of single factor thresholds and uses the monitoring data of wind sensors, light sensors, and temperature and humidity sensors for comprehensive analysis. Taking temperature and humidity as an example, a temperature and humidity coupling model is established. Temperature and humidity data are input into the model. When the temperature rises and the humidity decreases, the model calculates a comprehensive impact value based on pre-set weights and the change trends of the two. If this value exceeds the appropriate maintenance range, the system will activate the spray maintenance equipment;

[0064] The historical data learning unit stores a large amount of historical maintenance data, including environmental data and corresponding maintenance effect data, and mines patterns from these historical data. When faced with a new bridge pier maintenance task, if the characteristics of the pier's environment, concrete type, etc. are similar to certain cases in the historical data, relevant knowledge is extracted from the existing knowledge graph and transferred to the current maintenance decision model. When encountering similar environmental conditions in history, the system refers to the historical maintenance plan and fine-tunes it in combination with the current actual situation to determine the startup of the maintenance execution module and the equipment operation parameters. The transfer learning is integrated into the unit to extract features from the maintenance data of the historical data learning unit to form a knowledge graph. Although different bridges are different, the environmental factors and maintenance needs faced during maintenance are common. After accumulating a large amount of bridge maintenance data, the system forms a knowledge system. When faced with the maintenance task of a new bridge pier, if its environmental characteristics, concrete type, etc. are similar to those of a previous bridge, the transfer learning algorithm can quickly extract relevant knowledge, migrate past maintenance strategies and equipment operating parameters, and combine them with the actual situation of the new bridge pier, such as size, concrete mix ratio, etc., and use them for new task decision-making after fine-tuning.

[0065] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A pier column maintenance device under multi-dimensional parameter joint control, characterized by: The invention comprises a vertical frame (1), a spray assembly (2) and a film covering assembly (4), wherein the spray assembly (2) is fixedly mounted on the top of the vertical frame (1), a movable frame (3) is sleeved on the outer wall of the spray assembly (2), the film covering assembly (4) is fixedly mounted on both sides of the movable frame (3), and a support base (5) is fixedly connected to the bottom of the vertical frame (1); The spray assembly (2) comprises a support arm (21), a spray pipe is provided inside the support arm (21), a nozzle (22) is provided on one side of the support arm (21), and an electric heating plate (23) is fixedly mounted on the lower surface of the support arm (21); The coating assembly (4) comprises a rotating rod (41) and a positioning rod (42). One end of the rotating rod (41) is rotatably connected to a connector (45). The positioning rod (42) is fixedly mounted on the side of the movable frame (3). The positioning rod (42) and the movable frame (3) are perpendicular to each other. The connector (45) is sleeved on the outer wall of the positioning rod (42). A protective film is wrapped around the outer wall of the rotating rod (41).

2. The pier column maintenance device under multi-dimensional parameter joint control according to claim 1, characterized in that: A positioning block (6) is fixedly installed on the top of the vertical frame (1), a servo motor is arranged inside the positioning block (6), and a gear is fixedly installed on the output shaft of the servo motor. A first connecting gear (24) is fixedly installed on the end of the support arm (21), and the first connecting gear (24) is meshed with the gear of the output shaft of the servo motor.

3. The pier column maintenance device under multi-dimensional parameter joint control according to claim 2, characterized in that: One end of the support arm (21) is rotatably connected to the interior of the positioning block (6), and a notch (9) is provided at the junction of the positioning block (6) and the support arm (21). When in use, the support arm (21) surrounds both sides of the pier column, and the servo motor pushes the support arm (21) close to the pier column by engaging the first connecting gear (24), and then sprays the curing liquid onto the surface of the pier column.

4. The pier column maintenance device under multi-dimensional parameter joint control according to claim 3, characterized in that: The interior of the positioning rod (42) is provided with a receiving groove (43), and the interior of the receiving groove (43) is fixedly installed with a screw drive assembly (44). The screw in the screw drive assembly (44) is threadedly connected to the adapter (45). When in use, the screw drive assembly (44) pushes the adapter (45) to move along the direction of the positioning rod (42) to adjust the position of the rotating rod (41).

5. The pier column maintenance device under multi-dimensional parameter joint control according to claim 4 is characterized in that: A positioning plate (8) is fixedly installed on one side of the movable frame (3), a reduction motor (12) is fixedly installed on the side of the positioning plate (8), a second connecting gear (11) is fixedly installed on the output shaft of the reduction motor (12), a gear rod (7) is fixedly installed on the outer wall of the vertical frame (1), and the second connecting gear (11) is meshed with the gear rod (7). When in use, the reduction motor (12) drives the second connecting gear (11), and the reaction force of the gear rod (7) on the second connecting gear (11) is used to drive the entire movable frame (3) to move upward along the direction of the vertical frame (1). A roller (10) is rotatably installed on the inner wall of the movable frame (3), and the roller (10) is attached to the vertical frame (1).

6. A pier column maintenance method under multi-dimensional parameter joint control, using a pier column maintenance device under multi-dimensional parameter joint control according to any one of claims 1 to 5, characterized in that: The method uses a control system that includes the following: System architecture: used to unify the dispersed sensors, controllers, actuators and software, and clarify the work content of each component; Control strategy: Through dynamic decision-making and optimization, environmental data is converted into precise maintenance actions.

7. The pier column maintenance method under multi-dimensional parameter joint control according to claim 6, characterized in that: The system architecture includes an environmental monitoring module and a maintenance execution module; The environmental monitoring module is used to collect environmental data in real time and provide a basis for the maintenance execution module; The maintenance execution module executes the instructions corresponding to the data monitored by the environmental monitoring module and performs actual maintenance operations on the bridge piers.

8. The pier column maintenance method under multi-dimensional parameter joint control according to claim 6, characterized in that: The environmental monitoring module includes wind sensor, light sensor, and temperature and humidity sensor; The wind sensor uses a three-cup wind speed sensor and is installed in an open area on top of the bridge pier; The light sensor uses a photodiode light sensor and is installed on the sunny side of the pier; The temperature and humidity sensor uses a temperature and humidity integrated sensor that combines a capacitive humidity sensor and a thermistor temperature sensor, and is installed at different heights of the pier.

9. The pier column maintenance method under multi-dimensional parameter joint control according to claim 7, characterized in that: The maintenance execution module includes a spray maintenance unit, a film protection unit, and a sunshade protection unit; The spray curing unit and the sunshade protection unit are used to control the spray assembly (2) in combination, wherein the spray curing unit is used to control the delivery of curing liquid, and the sunshade protection unit is used to assist the spray curing unit. When only sunshade is required, the spray curing unit stops delivering the curing liquid. The film coating protection unit is used to control the film coating component (4) to coat the surface of the pier.

10. The pier column maintenance method under multi-dimensional parameter joint control according to claim 8, characterized in that: The control strategy includes a multi-factor comprehensive analysis algorithm unit, a dynamic parameter adjustment unit, a historical data learning unit, and a transfer learning integration unit; The multi-factor comprehensive analysis algorithm unit abandons the single factor threshold judgment and uses the monitoring data of wind sensors, light sensors, and temperature and humidity sensors for comprehensive analysis; Dynamic parameter adjustment algorithm dynamically adjusts equipment operating parameters according to different maintenance stages; The historical data learning unit stores a large amount of historical maintenance data, including environmental data and corresponding maintenance effect data, and mines patterns from these historical data; The transfer learning integration unit extracts features from the maintenance data of the historical data learning unit to form a knowledge graph. When faced with a new bridge pier maintenance task, if the pier's environment, concrete type and other characteristics are similar to certain cases in the historical data, relevant knowledge is extracted from the existing knowledge graph and transferred to the current maintenance decision model.

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