Hydraulic synchronous control system for mobile slide

Abstract

The present invention discloses a hydraulic synchronous control system for a movable slide, which relates to the field of hydraulic control technology and solves the technical problems that inaccurate adjustment occurs when adjustment is performed only according to the numerical value of a parameter, the specific cause of the abnormality cannot be identified, and subsequent adjustment is inconvenient. The present invention identifies and judges the working state of different execution units according to their working parameters, and analyzes the working parameters of the execution units with abnormalities, and analyzes the influence of different working parameters on the motor speed, and adjusts the motor speed in combination with the types of influencing parameters. The adjustment is carried out in combination with various influences to improve the accuracy of the overall synchronous control, and secondly, the adjusted execution units are monitored, and a secondary analysis is performed based on the adjusted working parameters, and the cause of the abnormality is obtained in combination with historical data, so as to facilitate subsequent operators to identify and quickly locate the abnormality.

Description

Technical Field

[0001] The invention relates to the technical field of hydraulic control, in particular to a hydraulic synchronous control system for a movable slide. Background Art

[0002] The hydraulic synchronous control system for mobile slides is an automatic control technology used to ensure the accuracy and stability of mechanical movement. The hydraulic synchronous control system for mobile slides is the key to improving equipment performance and production efficiency in modern industry. It integrates PLC control technology, shunt speed compensation, synchronous shunt motor control and other technologies to optimize the performance of mechanical equipment when performing precise movement and positioning.

[0003] According to Chinese patent application number CN202310549325.4, a hydraulic pad synchronous control system and control method in the control field of press hydraulic pad are disclosed, including multiple hydraulic actuators, one of which is a master hydraulic actuator, and the rest are slave hydraulic actuators. Each hydraulic actuator is provided with a data acquisition mechanism, and the data acquisition mechanism is connected to the synchronous controller signal; after the relevant displacement data of the master hydraulic actuator and the slave hydraulic actuator are collected by the data acquisition mechanism, they are sent to the synchronous signal controller for processing, and finally the displacement information of the master hydraulic actuator is used as a reference to adjust the displacement of the slave hydraulic actuator, so that the relative displacement error between the master and slave hydraulic actuators will not exceed the limit range, thereby ensuring the synchronous operation of the hydraulic pad.

[0004] The above patent analyzes the collected signals, unifies and coordinates the running speeds of the plunger rods of the hydraulic pad, ensures the consistent displacement of the plunger rods, realizes closed-loop control of the hydraulic pad, and realizes reliable, safe and continuous operation of the hydraulic pad, thereby improving the stretching quality of the workpiece, meeting the drawing requirements of complex workpieces, and further improving the economic benefits.

[0005] However, some existing synchronous control systems cannot identify the specific causes of abnormal situations when they are in use. During subsequent adjustments, they are only adjusted according to the values ​​of the parameters, which may result in inaccurate adjustments and thus affect the overall synchronous control. Summary of the invention

[0006] In view of the deficiencies in the prior art, the present invention provides a hydraulic synchronous control system for a movable slide, which solves the problems of inaccurate adjustment based only on parameter values, inability to identify the specific cause of the abnormality, and inconvenience in subsequent adjustment.

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions: a hydraulic synchronous control system for a movable slide, comprising:

[0008] An execution unit parameter acquisition unit is used to collect working parameters of different execution units and transmit the working parameters to the execution action analysis and recognition unit;

[0009] An execution action analysis and identification unit is used to analyze the acquired working parameters, obtain simulated action parameters by simulating the control parameters, and compare the working parameters with the standard action parameters to judge the working state of the execution unit and generate a judgment result, wherein the judgment result includes: a normal state result and an abnormal state result, and transmit the abnormal state result to the control adjustment analysis unit, and transmit the normal state result to the control information output unit;

[0010] A control adjustment analysis unit is used to analyze the abnormal state results obtained by analyzing the working parameters corresponding to the abnormal execution unit and analyzing the influence of the motor speed according to different working parameters, and generating adjustment information according to historical data, and then transmitting the adjustment information to the control information output unit;

[0011] The adjustment monitoring and analysis unit is used to monitor and analyze the acquired adjustment information, judge the working status of the abnormal execution unit according to the adjusted working parameters to generate normal signals and secondary analysis signals, and analyze the secondary analysis signals in combination with historical data to generate specific cause information, and transmit the specific cause information to the control information output unit.

[0012] The control information output unit is used to display the acquired adjustment information, normal signal and specific cause information to the corresponding operator.

[0013] As a further solution of the present invention: the specific manner in which the execution action analysis and recognition unit analyzes the working parameters is:

[0014] All execution units are obtained and labeled as i, where i=1, 2, ..., j, where j represents the number of execution units, and then corresponding control parameters are obtained, and corresponding simulation action parameters are obtained according to the control parameters, and the simulation action parameters are compared with the working parameters of the execution units;

[0015] When the working parameters of the execution unit are the same as the corresponding simulation action parameters, a normal state result is generated, and the corresponding execution unit is marked as a normal execution unit, denoted by b, and b=1, 2, ..., n. Conversely, when the working parameters of the execution unit are different from the corresponding simulation action parameters, an abnormal state result is generated, and the corresponding execution unit is marked as an abnormal execution unit, denoted by a, and a=1, 2, ..., m, where n and m represent the number of normal execution units and abnormal execution units, respectively, where n+m=j.

[0016] As a further solution of the present invention: the specific manner in which the control and regulation analysis unit analyzes the abnormal state result is:

[0017] Get all abnormal execution units a, where a=1, 2, …, m, and then get the working parameters corresponding to the abnormal execution unit a, where the working parameters include execution response time and execution speed. Then get historical data, and analyze the influence of the working parameters and motor speed based on the historical data. Meanwhile, get the corresponding influence factors, which are recorded as c1 and c2 respectively, and then analyze the influence of the comprehensive working parameter types.

[0018] As a further solution of the present invention: the specific method of controlling the adjustment and analysis unit to analyze the influence of the comprehensive working parameter types is:

[0019] When there is only one working parameter influence, the corresponding working parameter influence factor is obtained and the corresponding working parameter is recorded as the parameter to be adjusted. At the same time, the corresponding control parameter is obtained, and the parameter to be adjusted is adjusted based on the control parameter as a standard to generate corresponding adjustment information;

[0020] When there are multiple working parameter influences, the corresponding adjustment records under the same circumstances in the historical data are obtained, and adjustments are made based on the adjustment records, and adjustment information is generated at the same time.

[0021] As a further solution of the present invention: the specific manner in which the adjustment monitoring and analysis unit monitors and analyzes the adjustment information is:

[0022] The abnormal execution unit is adjusted according to the adjustment information, and the adjusted abnormal execution unit is recorded as the execution unit to be analyzed. Then, the working parameters corresponding to the execution unit to be analyzed are obtained and recorded as analysis parameters, and the obtained analysis parameters are compared with the control parameters. When the analysis parameters are different from the control parameters, a secondary analysis signal is generated. Conversely, when the analysis parameters are the same as the control parameters, a normal signal is generated, and then the normal signal is transmitted to the control information output unit.

[0023] As a further solution of the present invention: the specific method of adjusting the monitoring and analysis unit to analyze the secondary analysis signal is:

[0024] Obtain historical data, and obtain the same abnormal situation records in the historical data as records to be analyzed, then obtain the abnormal causes corresponding to the records to be analyzed, and classify the records to be analyzed according to the abnormal causes to obtain classified record information, and analyze and extract the characteristic causes corresponding to the classified record information;

[0025] Then, the current analysis parameters are matched with the classified record information, and the classified record information is screened to obtain the pre-selected record information. At the same time, the changes of the current analysis parameters within the time period t are obtained. Then, the changes are matched with the parameter changes corresponding to the pre-selected record information, and the pre-selected record information is screened for the second time to obtain specific cause information. At the same time, the generated specific cause information is transmitted to the control information output unit.

[0026] The present invention provides a hydraulic synchronous control system for a movable slide. Compared with the prior art, it has the following beneficial effects:

[0027] The present invention identifies and judges the working status of different execution units according to their working parameters, and for the execution units with abnormalities, analyzes their working parameters and the influence of different working parameters on the motor speed, and adjusts the motor speed in combination with the types of influencing parameters. The adjustment is carried out by combining various influences to improve the accuracy of the overall synchronous control, and then the adjusted execution units are monitored, and a secondary analysis is performed based on the adjusted working parameters. At the same time, the cause of the abnormality is obtained in combination with historical data, so as to facilitate subsequent operators to identify and quickly locate the abnormality. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a block diagram of the system principle of the present invention. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] For example, see Figure 1 The present application provides a mobile slide hydraulic synchronous control system, including an execution unit parameter acquisition unit, an execution action analysis and identification unit, a control adjustment analysis unit, an adjustment monitoring analysis unit and a control information output unit.

[0031] The execution unit parameter acquisition unit is used to collect the working parameters of different execution units and transmit the working parameters to the execution action analysis and recognition unit.

[0032] The execution action analysis and identification unit is used to analyze the acquired working parameters, obtain simulated action parameters by simulating the control parameters, and compare the working parameters with the standard action parameters to judge the working state of the execution unit and generate a judgment result, wherein the judgment result includes: a normal state result and an abnormal state result, and transmit the abnormal state result to the control adjustment analysis unit, and transmit the normal state result to the control information output unit. The specific method of generating the judgment result is:

[0033] All execution units are obtained and labeled as i, where i=1, 2, ..., j, where j represents the number of execution units. Then the corresponding control parameters are obtained, and the control parameters here refer to the parameters input by the operator, such as the movement parameters of the hydraulic cylinder, the speed and power of the motor, etc. At the same time, the corresponding simulation action parameters are obtained according to the control parameters, and the simulation state information is obtained through the corresponding simulator, and the simulation action parameters are compared with the working parameters of the execution unit;

[0034] When the working parameters of the execution unit are the same as the corresponding simulation action parameters, it means that the working state of the corresponding execution unit is normal, and a normal state result is generated, and the corresponding execution unit is marked as a normal execution unit, denoted by b, and b=1, 2,..., n. On the contrary, when the working parameters of the execution unit are different from the corresponding simulation action parameters, it means that the working state of the corresponding execution unit is abnormal, and an abnormal state result is generated, and the corresponding execution unit is marked as an abnormal execution unit, denoted by a, and a=1, 2,..., m, where n and m represent the number of normal execution units and abnormal execution units, respectively, where n+m=j.

[0035] For example, suppose there are 10 execution units (j=10), each responsible for a different task. During the working process, the control parameters and actual working parameters of each execution unit are collected through the monitoring system. After comparison, it is found that the working status of 7 execution units is consistent with the simulation action parameters, while the working status of the other 3 execution units is inconsistent with the simulation action parameters. For these 3 abnormal execution units, it is necessary to further check the cause and take corresponding measures to repair or adjust them to ensure the normal operation of the production line.

[0036] The control adjustment analysis unit is used to analyze the abnormal state results obtained by analyzing the working parameters corresponding to the abnormal execution unit and analyzing the influence of the motor speed according to different working parameters. At the same time, the adjustment information is generated according to the historical data, and then the adjustment information is transmitted to the control information output unit. The specific method of generating the adjustment information is:

[0037] All abnormal execution units a are obtained, and a=1, 2, ..., m, and then the working parameters corresponding to the abnormal execution unit a are obtained, wherein the working parameters include the execution response time and the execution speed, and then the historical data is obtained, and the influence of the working parameters and the motor speed is analyzed according to the historical data, and the corresponding influencing factors are respectively obtained and recorded as c1 and c2, and here c1 represents the influencing factor of the execution response time and the motor speed, and c2 represents the influencing factor of the execution speed and the motor speed. At the same time, the specific analysis method is the analysis method of the prior art, and no further elaboration is made here. Specifically, the motor speed corresponding to different execution response times is analyzed, and the calculation and analysis are performed by the artificial intelligence algorithm, and then the influence of the types of working parameters is analyzed comprehensively; the specific analysis method can adopt the existing technical methods, for example, by comparing the motor speed data under different execution response times, and using the artificial intelligence algorithm for calculation and analysis to determine these influencing factors. The use of artificial intelligence algorithms can help to more accurately identify patterns and trends, thereby providing deeper insights.

[0038] When there is only one working parameter influence, the corresponding working parameter influence factor is obtained and the corresponding working parameter is recorded as the parameter to be adjusted, and the working parameter influence factor obtained here represents any one of the influence factors of the execution response time and the execution speed, and the corresponding control parameter is obtained at the same time, and the parameter to be adjusted is adjusted based on the control parameter as the standard, and the influence factor is substituted into the adjustment to generate the corresponding adjustment information;

[0039] When there are multiple working parameter influences, the corresponding adjustment records under the same circumstances in the historical data are obtained, and adjustments are made based on the adjustment records, and adjustment information is generated at the same time.

[0040] For example, if it is found that the execution speed influence factor c2 of a certain execution unit is too high, while the execution response time influence factor c1 is normal, the execution speed can be used as the parameter to be adjusted. Then the execution speed is adjusted according to the motor speed control parameter, while considering the influence of c2 to ensure that the speed of the execution unit can reach the optimal state;

[0041] On the other hand, when there are multiple working parameters, the situation will be more complicated. In this case, it is necessary to find adjustment records under similar circumstances from historical data. These records provide experience and data of successful adjustments under similar conditions, which can be used as reference standards for adjustment. By imitating the adjustment methods of these successful cases, a set of adjustment information can also be generated to guide the current adjustment operation.

[0042] For example, if an execution unit has problems with long execution response time and insufficient execution speed, that is, both c1 and c2 are abnormal, then you can find adjustment records of similar problems in historical data. By analyzing the adjustment steps and results in these records, you can get a method for how to adjust the motor speed and other related parameters at the same time to optimize the performance of the execution unit.

[0043] A control information output unit is used to display the acquired adjustment information to the corresponding operator.

[0044] Embodiment 2, as the embodiment 2 of the present invention, this embodiment is implemented on the basis of embodiment 1, and is different from embodiment 1 in that.

[0045] The adjustment monitoring and analysis unit is used to monitor and analyze the acquired adjustment information, judge the working state of the abnormal execution unit according to the adjusted working parameters to generate a normal signal and a secondary analysis signal, and analyze the secondary analysis signal in combination with historical data to generate specific cause information, and transmit the specific cause information to the control information output unit. The specific method of generating the specific cause information is:

[0046] The abnormal execution unit is adjusted according to the adjustment information, and the abnormal execution unit after adjustment is recorded as the execution unit to be analyzed. Then, the working parameters corresponding to the execution unit to be analyzed are obtained and recorded as analysis parameters, and the working parameters obtained here represent the corresponding working parameters after adjustment, and the obtained analysis parameters are compared with the control parameters. When the analysis parameters are different from the control parameters, it means that the abnormal execution unit after adjustment is still abnormal, and a secondary analysis signal is generated. On the contrary, when the analysis parameters are the same as the control parameters, it means that the abnormal execution unit after adjustment is in a normal working state, and a normal signal is generated, and then the normal signal is transmitted to the control information output unit;

[0047] The generated secondary analysis signal is processed to obtain historical data, and the same abnormal situation records in the historical data are obtained and recorded as records to be analyzed. The same abnormal situation records here indicate that in the past adjustment history, there are the same abnormal situations when monitoring the adjusted execution unit. Then, the abnormal reasons corresponding to the records to be analyzed are obtained, and the records to be analyzed are classified according to the abnormal reasons to obtain classified record information. At the same time, the characteristic reasons corresponding to the classified record information are analyzed and extracted. The characteristic reasons here are obtained by uniformly analyzing the classified record information through machine algorithms, and the corresponding characteristic reasons are labeled with the same type of classified record information;

[0048] Then, the current analysis parameter is matched with the classified record information, and the matching method here is to match the numerical value of the analysis parameter with the numerical value of the classified record information. If the difference between the two is within the allowable range, where the specific numerical value of the allowable range is set by the operator, it indicates a match, otherwise it indicates a mismatch. The classified record information is screened to obtain pre-selected record information, and the change of the current analysis parameter within the time period t is obtained. Then, the change is matched with the parameter change corresponding to the pre-selected record information, and the pre-selected record information is screened for the second time to obtain specific cause information. At the same time, the generated specific cause information is transmitted to the control information output unit.

[0049] The specific parameter changes indicate the corresponding parameter value changes. Similarly, the parameter changes corresponding to the preselected records within the time period t are calculated, and the calculated value changes are matched and analyzed. If the difference between the two is within the preset value range, it means that the two match. At the same time, the corresponding characteristic causes are obtained and specific cause information is generated.

[0050] A control information output unit is used to transmit the acquired specific cause information and normal signals to the corresponding operator.

[0051] Embodiment 3, as the embodiment 3 of the present invention, focuses on combining the implementation processes of embodiment 1 and embodiment 2 for implementation.

[0052] Some of the data in the above formulas are dimensionless and numerically calculated. Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0053] The above embodiments are only used to illustrate the technical method of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical method of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical method of the present invention.

Claims

1. The hydraulic synchronous control system of the movable slide is characterized by: include: An execution unit parameter acquisition unit is used to collect working parameters of different execution units and transmit the working parameters to the execution action analysis and recognition unit; An execution action analysis and identification unit is used to analyze the acquired working parameters, obtain simulated action parameters by simulating the control parameters, and compare the working parameters with the standard action parameters to judge the working state of the execution unit and generate a judgment result, wherein the judgment result includes: a normal state result and an abnormal state result, and transmit the abnormal state result to the control adjustment analysis unit, and transmit the normal state result to the control information output unit; The control adjustment analysis unit is used to analyze the abnormal state results obtained by analyzing the working parameters corresponding to the abnormal execution unit and analyzing the influence of the motor speed according to different working parameters. At the same time, the adjustment information is generated according to the historical data, and then the adjustment information is transmitted to the control information output unit. The specific method of analyzing the abnormal state results is as follows: All abnormal execution units a are obtained, and a=1, 2, ..., m, and m represents the number of abnormal execution units. Then, the working parameters corresponding to the abnormal execution unit a are obtained, wherein the working parameters include the execution response time and the execution speed. Then, historical data are obtained, and the influence of the working parameters and the motor speed is analyzed according to the historical data. At the same time, the corresponding influence factors are obtained and recorded as c1 and c2 respectively. Then, the influence of the types of working parameters is analyzed comprehensively, and the analysis method of the influence of the types of working parameters is as follows: When there is only one working parameter influence, the corresponding working parameter influence factor is obtained and the corresponding working parameter is recorded as the parameter to be adjusted. At the same time, the corresponding control parameter is obtained, and the parameter to be adjusted is adjusted based on the control parameter as a standard to generate corresponding adjustment information; When there are multiple working parameter influences, the corresponding adjustment records under the same circumstances in the historical data are obtained, and the adjustment is performed based on the adjustment records, and the adjustment information is generated at the same time; The adjustment monitoring and analysis unit is used to monitor and analyze the acquired adjustment information, judge the working state of the abnormal execution unit according to the adjusted working parameters to generate a normal signal and a secondary analysis signal, and analyze the secondary analysis signal in combination with historical data to generate specific cause information, and transmit the specific cause information to the control information output unit; The control information output unit is used to display the acquired adjustment information, normal signal and specific cause information to the corresponding operator.

2. The hydraulic synchronous control system of the movable slide according to claim 1, characterized in that: The specific method of analyzing the working parameters by the execution action analysis and recognition unit is as follows: All execution units are obtained and labeled as i, where i=1, 2, ..., j, where j represents the number of execution units, and then corresponding control parameters are obtained, and corresponding simulation action parameters are obtained according to the control parameters, and the simulation action parameters are compared with the working parameters of the execution units; When the working parameters of the execution unit are the same as the corresponding simulation action parameters, a normal state result is generated, and the corresponding execution unit is marked as a normal execution unit, denoted by b, and b=1, 2, ..., n. Conversely, when the working parameters of the execution unit are different from the corresponding simulation action parameters, an abnormal state result is generated, and the corresponding execution unit is marked as an abnormal execution unit, denoted by a, and a=1, 2, ..., m, where n and m represent the number of normal execution units and abnormal execution units, respectively, where n+m=j.

3. The hydraulic synchronous control system of the movable slide according to claim 1, characterized in that: The specific manner in which the adjustment monitoring and analysis unit monitors and analyzes the adjustment information is as follows: The abnormal execution unit is adjusted according to the adjustment information, and the adjusted abnormal execution unit is recorded as the execution unit to be analyzed. Then, the working parameters corresponding to the execution unit to be analyzed are obtained and recorded as analysis parameters, and the obtained analysis parameters are compared with the control parameters. When the analysis parameters are different from the control parameters, a secondary analysis signal is generated. Conversely, when the analysis parameters are the same as the control parameters, a normal signal is generated, and then the normal signal is transmitted to the control information output unit.

4. The hydraulic synchronous control system for the movable slide according to claim 3 is characterized in that: The specific method of adjusting the monitoring and analysis unit to analyze the secondary analysis signal is as follows: Obtain historical data, and obtain the same abnormal situation records in the historical data as records to be analyzed, then obtain the abnormal causes corresponding to the records to be analyzed, and classify the records to be analyzed according to the abnormal causes to obtain classified record information, and analyze and extract the characteristic causes corresponding to the classified record information; Then, the current analysis parameters are matched with the classified record information, and the classified record information is screened to obtain the pre-selected record information. At the same time, the changes of the current analysis parameters within the time period t are obtained. Then, the changes are matched with the parameter changes corresponding to the pre-selected record information, and the pre-selected record information is screened for the second time to obtain specific cause information. At the same time, the generated specific cause information is transmitted to the control information output unit.

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