Synchronous jacking control system and method for intelligent hoisting air cushion

Abstract

The invention discloses an intelligent synchronous jacking control system and method for lifting air cushions, and the system comprises a plurality of air cushions which are respectively located at a plurality of jacking points below a track plate and are used for carrying out the jacking operation on the track plate; the displacement sensor is used for detecting displacement data of the track plate; the pressure sensor is associated with the air cushion and is used for detecting a pressure signal of the air cushion; and the pneumatic control unit is used for calculating a deviation value based on the actual elevation, measured by the displacement sensor, of the track plate and the corresponding target elevation, and controlling the inflation parameters of the corresponding air cushion based on the deviation value to enable the air cushion to execute jacking operation until the track plate reaches the target elevation. The pneumatic control unit, the air cushion, the displacement sensor and the pressure sensor are adopted to form a signal transmission and control loop, real-time feedback of displacement and air cushion pressure in the ballastless track jacking process and synchronous control of jacking pressure and jacking displacement at different positions are achieved, the labor burden is relieved, and the working efficiency is improved. And the construction efficiency and precision of ballastless track jacking are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of maintenance of rail transit infrastructure, and particularly relates to an intelligent lifting air cushion synchronous jacking control system and method. Background Art

[0002] High-speed railways, conventional railways or subways have high requirements for the smoothness of tracks. However, affected by factors such as geological condition changes, human engineering activities, and train dynamic loads, the tracks sometimes have problems of deformation and deviation. The common method is to restore the smoothness of the track line by adjusting the fasteners. However, once the settlement amount exceeds the adjustment capacity of the fasteners, other methods must be adopted to restore the elevation and plane position of the track and the smoothness of the line. Summary of the Invention

[0003] In view of the technical defects and drawbacks existing in the prior art, embodiments of the present invention provide an intelligent lifting air cushion synchronous jacking control system that overcomes or at least partially solves the above problems. The specific solution is as follows:

[0004] As a first aspect of the present invention, there is provided an intelligent lifting air cushion synchronous jacking control system, the system comprising:

[0005] A plurality of air cushions, respectively located at a plurality of jacking points under the track slab, for jacking the track slab;

[0006] A displacement sensor, for detecting displacement data of the track slab, the displacement data including the elevation and displacement amount of the track slab;

[0007] A central controller, for analyzing various monitoring data collected, and performing comparative analysis according to a pre-determined plan, calculating the optimal plan, and converting it into a control signal;

[0008] A pressure sensor, associated with the air cushion, for detecting the pressure signal of the air cushion;

[0009] A pneumatic control unit, for calculating a deviation value based on the actual elevation of the track slab measured by the displacement sensor and the corresponding target elevation, and controlling the inflation parameters of the corresponding air cushion based on the deviation value to perform a jacking operation until the track slab reaches the target elevation.

[0010] Further, the system further includes a portable remote controller, which is installed with an industrial control computer inside, and has the function of remotely centrally synchronously controlling multiple pneumatic control units through the communication mode of the Ethernet industrial bus, and at the same time provides an industrial control operation software with the functions of jacking data setting, monitoring and storing.

[0011] Further, the central controller is used to formulate a synchronous jacking plan and output it to the pneumatic control unit. The central controller contains a data storage and analysis unit, which is used to store the data uploaded by the displacement sensors and pressure sensors. Combining with the overall deformation of the jacking structure, it intelligently analyzes and sets the single-point jacking volume limit, the distribution of each jacking point, and the jacking rate of each jacking point, and forms an optimal synchronous jacking plan for the central control machine to select and use.

[0012] Further, the pneumatic control unit includes: a PLC controller, an air intake pressure regulating valve, a pneumatic safety valve, and a three-position pneumatic solenoid valve;

[0013] The PLC controller is used to receive the jacking control signal, convert the jacking control signal into a corresponding electrical signal, and control the air intake pressure regulating valve, the pneumatic safety valve, and the three-position pneumatic solenoid valve to perform corresponding actions through the electrical signal;

[0014] The three-position pneumatic solenoid valve is used to control the on-off and flow direction of the air circuit through electromagnetic drive under the control of the PLC controller, and supports three-state switching between inflation, pressure holding, and pressure relief;

[0015] The pneumatic safety valve is an overpressure protection device, which is used to perform pressure relief operation under the control of the PLC controller when the air cushion pressure exceeds the threshold;

[0016] The air intake pressure regulating valve is used to adjust the air intake flow rate of the air cushion under the control of the PLC controller.

[0017] Further, the inflation parameters include the opening time, the stopping time, and the pressure relief time; the opening time is the time to control the opening of the air supply valve to supply air, the stopping time is the time to close the air supply to hold the pressure, and the pressure relief time is the time to open the air release valve to relieve the pressure;

[0018] The pneumatic control unit controls the inflation parameters of the corresponding air cushion based on the deviation value, which specifically includes:

[0019] When lifting, adopt the rhythm of injecting air for m seconds and stopping for n seconds, and based on the principle that the smaller the deviation value, the shorter the opening time and the longer the stopping time, adopt a segmented adaptive control strategy to adjust the opening time, the stopping time, and the pressure relief time of the air cushion.

[0020] Further, the principle that the smaller the deviation value, the shorter the opening time and the longer the stopping time, and adopting a segmented adaptive control strategy to adjust the opening time, the stopping time, and the pressure relief time of the air cushion includes:

[0021] When the device starts up, preset the relationship table among the deviation value e, the opening time m, the stopping time n, and the pressure relief time y. Based on the relationship table, during the jacking process, adjust the opening time m, the stopping time n, and the pressure relief time y in real time. Among them, the relationship among the deviation value e, the opening time m, the stopping time n, and the pressure relief time y includes:

[0022] When the deviation value is e≥10, set the opening time as m1, the stopping time as n1, and the pressure relief time as y1;

[0023] When the deviation value is 9≤e<10, set the opening time as m2, the stopping time as n2, and the pressure relief time as y1;

[0024] When the deviation value is 8≤e<9, set the opening time as m3, the stopping time as n3, and the pressure relief time as y1;

[0025] When the deviation value is 7≤e<8, set the opening time as m4, the stopping time as n4, and the pressure relief time as y1;

[0026] When the deviation value is 6≤e<7, set the opening time as m5, the stopping time as n5, and the pressure relief time as y1;

[0027] When the deviation value is 5≤e<6, set the opening time as m6, the stopping time as n6, and the pressure relief time as y1;

[0028] When the deviation value is 4≤e<5, set the opening time as m7, the stopping time as n7, and the pressure relief time as y1;

[0029] When the deviation value is 3≤e<4, set the opening time as m8, the stopping time as n8, and the pressure relief time as y1;

[0030] When the deviation value is 2≤e<3, set the opening time as m9, the stopping time as n9, and the pressure relief time as y1;

[0031] When the deviation value is 1≤e<2, set the opening time as m10, the stopping time as n10, and the pressure relief time as y1;

[0032] When the deviation value is 0.5≤e<0.1, set the opening time as m11, the stopping time as n11, and the pressure relief time as y1;

[0033] When the deviation value is <0.5, set the opening time as m12, the stopping time as n12, and the pressure relief time as y1;

[0034] Among them, the unit of the deviation value e is millimeter, and the units of the opening time m, the stopping time n1, and the pressure relief time y1 are all seconds.

[0035] As a second aspect of the present invention, a synchronous lifting control method for a lifting air cushion is provided. The method includes:

[0036] Detect the displacement data of the track slab through a displacement sensor, and detect the working pressure of the air cushion through a pressure sensor.

[0037] The pneumatic control unit calculates the deviation value based on the actual elevation of the track slab measured by the displacement sensor and the corresponding target elevation, and controls the inflation parameters of the corresponding air cushion based on the deviation value to perform a lifting operation until the track slab reaches the target elevation.

[0038] Further, the method further includes: setting a portable remote controller, connecting the portable remote controller to at least one pneumatic control unit, monitoring and storing the data of the displacement sensor and the pressure sensor through the portable remote controller, setting the lifting data, and sending a lifting control signal to the corresponding pneumatic control unit based on the set lifting data to achieve the remote centralized synchronous control function.

[0039] Further, the method further includes: setting a central controller, formulating a synchronous lifting plan through the central controller and outputting it to the pneumatic control unit. The central controller contains a data storage and analysis unit. The data storage and analysis unit stores the data uploaded by the displacement sensor and the pressure sensor, combines the overall deformation of the lifting structure, intelligently analyzes and sets the single-point lifting quantity limit value, the distribution of each lifting point, and the lifting rate of each lifting point, and forms an optimal synchronous lifting plan for the central control machine to select and use.

[0040] Further, the inflation parameters include the opening time, the stop time, and the pressure relief time; the opening time is the time to control the opening of the air supply valve to supply air, the stop time is the time to close the air supply to maintain pressure, and the pressure relief time is the time to open the pressure relief valve to relieve pressure;

[0041] The pneumatic control unit controls the inflation parameters of the corresponding air cushion based on the deviation value specifically including:

[0042] When lifting, adopt the rhythm of injecting air for m seconds and stopping for n seconds, and adopt a segmented adaptive control strategy to adjust the opening time, stop time, and pressure relief time of the air cushion based on the principle that the smaller the deviation value, the shorter the opening time and the longer the stop time.

[0043] The present invention has the following beneficial effects:

[0044] 1. The present invention uses a pneumatic control unit to form a signal transmission and control loop with the air cushion, displacement sensor, and pressure sensor, realizing real-time feedback of displacement and air cushion pressure during the lifting of the ballastless track and synchronous control of lifting pressure and lifting displacement at different positions, reducing the labor burden and improving the construction efficiency and accuracy of the ballastless track lifting.

[0045] 2. The present invention uses a portable remote controller to integrally control multiple pneumatic control units, and at the same time provides an industrial control operation software, which has functions such as jacking data setting, monitoring, and storage, ensuring the synchronous jacking of the ballastless track, further improving the construction efficiency and lifting accuracy, avoiding the damage of the ballastless track, reducing the economic loss, and improving the economic benefit; at the same time, the functions of monitoring and storage are also more conducive to the accumulation of construction experience and the learning of construction technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] Figure 1 It is a schematic diagram of an intelligent lifting air cushion synchronous jacking control system provided by an embodiment of the present invention DETAILED DESCRIPTION OF THE EMBODIMENTS

[0047] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work belong to the protection scope of the present invention.

[0048] An intelligent lifting air cushion synchronous jacking control system provided by an embodiment of the present invention includes: an air cushion, a displacement sensor, a pressure sensor, a pneumatic control unit, a storage and analysis unit, and a portable remote controller; the portable remote controller is connected to at least one pneumatic control unit, the pneumatic control unit is connected to at least one path of air cushions, each path of air cushions includes at least one air cushion and a corresponding displacement sensor and a pressure sensor, each pneumatic control unit is internally provided with an air intake pressure regulating valve, a pneumatic safety valve, a three-position pneumatic solenoid valve, a PLC controller and supporting modules, an industrial Ethernet communication module, and a control button panel, and each pneumatic control unit contains a PLC, which can realize independent control, and can also be connected between multiple pneumatic control units through an industrial Ethernet and aggregated to a central controller for unified control.

[0049] The central controller contains a data storage and analysis module, which can realize data storage, analysis, etc. The monitoring information is uploaded to the on-board storage and analysis unit, and combined with the overall deformation of the jacking structure, it intelligently analyzes and sets the single-point jacking amount limit value, the distribution of each jacking point, the jacking rate of each jacking point, etc., and forms an optimal synchronous jacking plan for submission to the central control machine for selection and use.

[0050] The multiple air cushions are respectively located at multiple jacking points under the track slab and are used to jack up the track slab. The displacement sensor is used to detect the displacement data of the track slab, and the displacement data includes the elevation and displacement of the track slab. The pressure sensor is associated with the air cushion and is used to detect the pressure signal of the air cushion. The pressure sensor and the displacement sensor send the real-time jacking pressure and displacement data to the pneumatic control unit, the on-board storage and analysis unit, and the portable remote controller.

[0051] The pneumatic control unit, the on-board storage and analysis unit, and the portable remote controller can calculate the deviation value based on the actual elevation of the track slab measured by the displacement sensor and the corresponding target elevation, and control the inflation parameters of the corresponding air cushion based on the deviation value to perform the jacking operation until the track slab reaches the target elevation.

[0052] Among them, the detection of the pressure signal mainly ensures the normal operation of the equipment. The system can adopt a double-closed-loop collaborative control strategy with displacement as the main control parameter and pressure as the auxiliary correction parameter. The displacement synchronization error threshold is set to ±2 mm, and the pressure deviation threshold is set to ±10% of the rated value. When the single-point displacement or pressure exceeds the threshold, the PLC controller immediately triggers a local linkage adjustment instruction to achieve load rebalancing by adjusting the intake opening or the on-off frequency of the solenoid valve, avoiding damage to pneumatic components. In the double-closed-loop collaborative control algorithm, the displacement control loop adopts a fuzzy adaptive PID algorithm, and the pressure control loop adopts a feed-forward compensation algorithm. The two are fused through a weighting coefficient to output the final control quantity. The weighting coefficient is dynamically adjusted according to the load stiffness characteristics. When the load is rigid, the displacement weight is ≥80%, and when the load is flexible, the pressure weight is ≥60%.

[0053] The equipment is mainly for displacement control, that is, the jacking amount control. During the jacking process, the input quantity is the track elevation, and the output quantities are the flow rate, switch time, and frequency of the equipment's air outlet.

[0054] Specifically, the inflation parameters include the opening time, the stop time, and the pressure relief time. The opening time is the time to control the opening of the air supply valve to supply air, the stop time is the time to close the air supply to maintain pressure, and the pressure relief time is the time to open the pressure relief valve to relieve pressure.

[0055] The pneumatic control unit controls the inflation parameters of the corresponding air cushion based on the deviation value, which specifically includes:

[0056] When lifting, the rhythm of injecting air for m seconds and stopping for n seconds is adopted, and based on the principle that the smaller the deviation value, the shorter the opening time and the longer the stop time, a segmented adaptive control strategy is used to adjust the opening time, stop time, and pressure relief time of the air cushion.

[0057] The system control principle is as follows Figure 1 shown.

[0058] To improve the lifting efficiency of the equipment, when the deviation between the track elevation data and the specified data is large, the opening time should be appropriately extended; when the deviation between the track elevation data and the specified data is small, the time should be appropriately shortened to avoid excessive lifting and untimely system response. Accordingly, a relationship table between the opening lifting rhythm and the track elevation deviation is established as shown in the following table:

[0059]

[0060]

[0061] Among them, the opening time m is the time to control the opening of the air supply valve for lifting, the stop time n is the time to close the air supply for pressure holding, and the pressure relief y is the time to open the pressure relief valve for pressure relief. The larger the deviation value, the longer the opening time of the air supply valve, and vice versa, m1>m2>m3>m4......>m12; the larger the deviation value, the shorter the stop time, and vice versa, n1<n2<n3<n4<n5......<n12; the pressure relief time is relatively fixed. The relationship table between the deviation e, the opening time m, the stop time n, and the pressure relief time y is set when the equipment starts, and the control system records the existing data by itself.

[0062] Among them, the opening time and the stop time need to be changed according to the actual situation. At the same time, when a fixed cycle is reached at a certain opening and stop time, it is determined that the selection of this opening and stop time does not adapt to the actual situation, and the controller will adjust the algorithm up one gear. Finally, when the deviation reaches the specified range, it stops and proceeds to the next process. At the same time, the equipment basically keeps the displacements of each air cushion the same, the pressures of each air cushion similar, and the lifting amounts of each lifting point of the lifted track structure synchronous, so as to avoid changes in the track geometry caused by uneven local lifting.

[0063] Each pneumatic control unit has a single-machine operation function and can also realize the remote online master control function through industrial Ethernet communication.

[0064] An industrial computer is installed in the portable remote controller, which can connect multiple pneumatic control units through industrial Ethernet bus communication to realize the remote centralized synchronous control function; at the same time, an industrial control operation software is provided, which has functions such as jacking data setting, monitoring, and storage.

[0065] In the embodiments of the present invention, the length of each base to be jacked up is about more than 20 meters. There are 3 to 4 (expandable) track slabs or roadbed slabs installed on each base. Now, 16 air cushions are installed under each base, divided into 8 circuits, and each circuit consists of 2 air cushions and 1 displacement sensor. There are a total of 32 circuits and 64 air cushions for 4 (expandable) bases. Considering the operability of installation and control, the PLC control system is a distributed control unit, divided into 4 (expandable) pneumatic control units, and each pneumatic control unit controls 8 circuits (16 air cushions) on one base. Each pneumatic control unit is internally equipped with an intake pressure regulating valve, a pneumatic safety valve, a three-position pneumatic solenoid valve, a PLC controller and supporting modules, an industrial Ethernet communication module, and a control button panel. Each pneumatic control unit has the function of single-machine operation and can also achieve the function of remote online total control through industrial Ethernet communication. The single-machine control button panel of this machine includes: a touch screen controller and a physical stainless steel operation button. A pressure sensor capable of detecting the air cushion pressure is installed in each group of circuits. The pressure sensor and the displacement sensor send the real-time jacking pressure and jacking displacement signals to the PLC controller. The operation button of the electrical control system issues a jacking operation instruction. After the PLC receives the instruction, it drives the pneumatic solenoid valve to control the air intake volume of the air cushion to make the corresponding jacking movement. The PLC controller continuously corrects the movement error according to the detected pressure and displacement signals, basically keeping the load of each air cushion synchronized and balanced. The control principle is as follows:

[0066] The 4 (expandable) pneumatic control units achieve remote online control through industrial Ethernet communication; the portable remote controller is mainly composed of an industrial all-in-one computer, a PLC controller, and industrial control software. The communication systems of the 4 (expandable) pneumatic control units are connected through the TCP / IP industrial Ethernet high-speed industrial bus transmission, greatly reducing the number of connection wires between each part, improving the control performance of the system, and enhancing the reliability of the system. A 15-inch touch-type flat-panel industrial computer is installed in the portable remote controller, which can monitor all the data of the entire jacking process and also has the functions of storing and querying jacking data.

[0067] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An intelligent lifting air cushion synchronous jacking control system, characterized in that, The system includes: Multiple air cushions, which are respectively located at multiple jacking points under the track slab and are used to perform jacking operations on the track slab; A displacement sensor, which is used to detect the displacement data of the track slab, and the displacement data includes the elevation and displacement of the track slab; A pressure sensor, which is associated with the air cushion and is used to detect the pressure signal of the air cushion; A central controller, which is used to analyze various monitored data collected, conduct comparative analysis according to the formulated plan, calculate the optimal plan, and convert it into a control signal; A pneumatic control unit, which is used to calculate the deviation value based on the actual elevation of the track slab measured by the displacement sensor and the corresponding target elevation, and control the inflation parameters of the corresponding air cushion based on the deviation value, so that it performs the jacking operation until the track slab reaches the target elevation.

2. The intelligent lifting air cushion synchronous jacking control system according to claim 1, wherein The system further includes a portable remote controller, which is installed with an industrial control computer. The portable remote controller has the function of connecting multiple pneumatic control units through Ethernet industrial bus communication to achieve remote centralized synchronous control, and at the same time provides an industrial control operation software with functions of jacking data setting, monitoring and storage.

3. The intelligent lifting air cushion synchronous jacking control system according to claim 1, characterized in that The central controller is used to formulate a synchronous jacking plan and output it to the pneumatic control unit. The central controller contains a data storage and analysis unit, which is used to store the data uploaded by the displacement sensor and the pressure sensor, and intelligently analyze and set the single-point jacking amount limit, the distribution of each jacking point and the jacking rate of each jacking point in combination with the overall deformation of the jacking structure, and form an optimal synchronous jacking plan for the central control machine to select and use.

4. The intelligent lifting air cushion synchronous jacking control system according to claim 1, characterized in that The pneumatic control unit includes: a PLC controller, an air intake pressure regulating valve, a pneumatic safety valve and a three-position pneumatic solenoid valve; The PLC controller is used to receive the jacking control signal, convert the jacking control signal into a corresponding electrical signal, and control the air intake pressure regulating valve, the pneumatic safety valve and the three-position pneumatic solenoid valve to perform corresponding actions through the electrical signal; The three-position pneumatic solenoid valve is used to control the on-off and flow direction of the air path through electromagnetic drive under the control of the PLC controller, and supports three-state switching between inflation, pressure holding and pressure relief; The pneumatic safety valve is an overpressure protection device, which is used to perform pressure relief operation under the control of the PLC controller when the air cushion pressure exceeds the threshold value; The air intake pressure regulating valve is used to adjust the air intake flow rate of the air cushion under the control of the PLC controller.

5. The intelligent lifting air cushion synchronous jacking control system according to claim 1, characterized in that, The inflation parameters include the opening time, the stopping time and the pressure relief time; the opening time is the time to control the opening of the air supply valve to supply air, the stopping time is the time to close the air supply to hold pressure, and the pressure relief time is the time to open the air release valve to relieve pressure; The pneumatic control unit controls the inflation parameters of the corresponding air cushion based on the deviation value, specifically including: When lifting, the rhythm of injecting for m seconds and stopping for n seconds is adopted, and based on the principle that the smaller the deviation value, the shorter the opening time and the longer the stopping time, a segmented adaptive control strategy is adopted to adjust the opening time, the stopping time and the pressure relief time of the air cushion.

6. The intelligent lifting air cushion synchronous jacking control system according to claim 4, characterized in that, Adopting a segmented adaptive control strategy to adjust the opening time, the stopping time and the pressure relief time of the air cushion based on the principle that the smaller the deviation value, the shorter the opening time and the longer the stopping time includes: Pre-set the relationship table among the deviation value e, start time m, stop time n, and pressure relief time y when the device starts. Based on the relationship table, during the jacking process, the start time m, stop time n, and pressure relief time y are adjusted in real time. Among them, the relationship among the deviation value e, start time m, stop time n, and pressure relief time y includes: When the deviation value e≥10, set the start time as m1, the stop time as n1, and the pressure relief time as y1; When the deviation value 9≤e<10, set the start time as m2, the stop time as n2, and the pressure relief time as y1; When the deviation value 8≤e<9, set the start time as m3, the stop time as n3, and the pressure relief time as y1; When the deviation value 7≤e<8, set the start time as m4, the stop time as n4, and the pressure relief time as y1; When the deviation value 6≤e<7, set the start time as m5, the stop time as n5, and the pressure relief time as y1; When the deviation value 5≤e<6, set the start time as m6, the stop time as n6, and the pressure relief time as y1; When the deviation value 4≤e<5, set the start time as m7, the stop time as n7, and the pressure relief time as y1; When the deviation value 3≤e<4, set the start time as m8, the stop time as n8, and the pressure relief time as y1; When the deviation value 2≤e<3, set the start time as m9, the stop time as n9, and the pressure relief time as y1; When the deviation value 1≤e<2, set the start time as m10, the stop time as n10, and the pressure relief time as y1; When the deviation value 0.5≤e<0.1, set the start time as m11, the stop time as n11, and the pressure relief time as y1; When the deviation value <0.5, set the start time as m12, the stop time as n12, and the pressure relief time as y1; Among them, the unit of the deviation value e is millimeter, and the units of the start time m, stop time n1, and pressure relief time y1 are all seconds.

7. A synchronous lifting control method for a lifting air cushion, characterized in that, The method includes: Detect the displacement data of the track slab through a displacement sensor, and detect the working pressure of the air cushion through a pressure sensor; The pneumatic control unit calculates the deviation value based on the actual elevation of the track slab measured by the displacement sensor and the corresponding target elevation, and controls the corresponding air cushion inflation parameters based on the deviation value to perform the jacking operation until the track slab reaches the target elevation.

8. The synchronous jacking control method of the lifting air cushion according to claim 7, characterized in that, The method further includes: setting a portable remote controller, connecting the portable remote controller to at least one pneumatic control unit, monitoring and storing the data of the displacement sensor and pressure sensor through the portable remote controller, setting the jacking data, and sending a jacking control signal to the corresponding pneumatic control unit based on the set jacking data to achieve the remote centralized synchronous control function.

9. The synchronous jacking control method of the lifting air cushion according to claim 7, wherein, The method further includes: setting a central controller, formulating a synchronous jacking plan through the central controller and outputting it to the pneumatic control unit. The central controller contains a data storage and analysis unit, which stores the data uploaded by the displacement sensors and pressure sensors, and intelligently analyzes and sets the single-point jacking volume limit, the distribution of each jacking point, and the jacking rate of each jacking point in combination with the overall deformation of the jacking structure, and forms an optimal synchronous jacking plan for the central control machine to select and use.

10. The synchronous jacking control method of the lifting air cushion according to claim 7, characterized in that The inflation parameters include the opening time, the stopping time, and the pressure relief time; the opening time is the time for controlling the opening of the air supply valve to supply air, the stopping time is the time for closing the air supply to maintain pressure, and the pressure relief time is the time for opening the pressure relief valve to relieve pressure; The pneumatic control unit controls the inflation parameters of the corresponding air cushion based on the deviation value, specifically including: During lifting, adopt a rhythm of injecting for m seconds and stopping for n seconds, and based on the principle that the smaller the deviation value, the shorter the opening time and the longer the stopping time, adopt a segmented adaptive control strategy to adjust the opening time, stopping time, and pressure relief time of the air cushion.

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