A hydraulic operating system alarm method, device, system and storage medium

Abstract

The present application discloses a hydraulic operating system alarm method, device, system and storage medium, the method comprising: obtaining first data of each monitoring point of the hydraulic operating system, wherein the first data comprises pressure distribution data of each monitoring point and / or volumetric efficiency of the hydraulic operating system; generating second data according to the first data, wherein the second data comprises at least one of the following data: a first comparison result of the pressure value of each monitoring point with a standard curve, a second comparison result of the pressure curve of different periods at the same monitoring point, a third comparison result of the volumetric efficiency of different periods and a fourth comparison result of the pressure value of different monitoring points at the same time; judging whether there is an abnormality in the hydraulic operating system according to the second data; and issuing an alarm when there is an abnormality in the hydraulic operating system. The present application can alarm when an abnormality occurs in the system to prompt the operator to perform maintenance and reduce the risk of equipment failure.

Description

Technical Field

[0001] The present application relates to the field of industrial technology, and in particular to a hydraulic operating system alarm method, device, system and storage medium. Background Art

[0002] A hydraulic operating system is a system that uses liquid to transfer energy and control actions. Fault monitoring of existing hydraulic operating systems often compares the collected data information with preset thresholds and issues fault warnings when a fault occurs. At this point, the system has often already failed, causing downtime and losses.

[0003] Therefore, how to provide a hydraulic operating system alarm method to alarm when the system is abnormal to prompt operators to perform maintenance and reduce the risk of equipment failure has become a technical problem that needs to be solved urgently. Summary of the invention

[0004] The present application provides a hydraulic operating system alarm method, device, system and storage medium, which are used to alarm when an abnormality occurs in the system to prompt operators to perform maintenance and reduce the risk of equipment failure.

[0005] The present application provides a hydraulic operating system alarm method, comprising:

[0006] Acquire first data of each monitoring point of the hydraulic operating system, wherein the first data includes pressure distribution data of each monitoring point and / or volumetric efficiency of the hydraulic operating system;

[0007] Generate second data according to the first data, wherein the second data includes at least one of the following data:

[0008] The first comparison result of the pressure value at each monitoring point with the standard curve, the second comparison result of the pressure curve at the same monitoring point in different periods, the third comparison result of the volumetric efficiency at different periods, and the fourth comparison result of the pressure values ​​at different monitoring points at the same time;

[0009] determining whether the hydraulic operating system is abnormal according to the second data;

[0010] When the hydraulic operating system has an abnormality, an alarm is issued.

[0011] The beneficial effect of the present application is that: by acquiring the first data of each monitoring point of the hydraulic operating system, wherein the first data includes the pressure distribution data of each monitoring point and / or the volumetric efficiency of the hydraulic operating system; and generating the second data according to the first data, wherein the second data includes at least one of the following data: the first comparison result of the pressure value of each monitoring point with the standard curve, the second comparison result of the pressure curve of different periods of the same monitoring point, the third comparison result of the volumetric efficiency of different periods, and the fourth comparison result of the pressure value of different monitoring points at the same time, so as to achieve the comparison of the monitoring point value with the corresponding standard value, the comparison between different periods of the same monitoring point, and the comparison between different monitoring points before the system is abnormal, and to judge whether the hydraulic operating system has an abnormality according to the second data, and to issue an alarm when the hydraulic operating system has an abnormality. Then, an alarm is issued when the system is abnormal, so as to prompt the operator to perform maintenance and reduce the risk of equipment failure.

[0012] In one embodiment, the first data is a pressure value of a monitoring point, and generating the second data according to the first data includes:

[0013] When the hydraulic operating system is running, the pressure value of each monitoring point is compared with the pressure value of the standard curve corresponding to each monitoring point at the same time point to generate a first comparison result of the pressure value of each monitoring point and the standard curve, and the first comparison result is used as the second data;

[0014] Judging whether the hydraulic operating system is abnormal according to the second data includes:

[0015] When the first comparison result indicates that the difference between the pressure value of each monitoring point and the pressure value of the standard curve corresponding to each monitoring point at the same time point is greater than a first preset value, it is determined that the hydraulic operating system has an abnormality.

[0016] In one embodiment, the first data is a pressure curve of a monitoring point, and generating the second data according to the first data includes:

[0017] The pressure curves of different periods at the same monitoring point are compared to generate a second comparison result of the pressure curves of different periods at the same monitoring point, and the second comparison result of the pressure curves of different periods at the same monitoring point is used as the second data, wherein the second comparison result is the comparison result of the pressure curves of adjacent periods of the same monitoring point and / or the comparison result of the pressure curves of the current period and the initial period of the same monitoring point.

[0018] In one embodiment, judging whether the hydraulic operating system is abnormal according to the second data includes:

[0019] When the comparison result of the pressure curves of adjacent periods at the same monitoring point indicates that there is a numerical point in the pressure curves of adjacent periods whose difference value is greater than a second preset value, it is determined that the hydraulic operating system is abnormal;

[0020] or

[0021] When the comparison result of the pressure curves of the current cycle and the initial cycle of the same monitoring point indicates that there is a numerical point where the difference between the pressure curve of the current cycle and the pressure curve of the initial cycle is greater than a third preset value, it is determined that the hydraulic operating system is abnormal;

[0022] In one embodiment, the first data is volumetric efficiency of different cycles, and generating the second data according to the first data includes:

[0023] Comparing the volumetric efficiencies of different cycles to generate a third comparison result of the volumetric efficiencies of different cycles, and using the third comparison result as the second data;

[0024] Judging whether the hydraulic operating system is abnormal according to the second data includes:

[0025] When the third comparison result indicates that the difference in volumetric efficiency between different cycles is greater than a fourth preset value, it is determined that an abnormality exists in the hydraulic operating system.

[0026] In one embodiment, the first data is the pressure value of different monitoring points at the same time, and generating the second data according to the first data includes:

[0027] Comparing the pressure values ​​at different monitoring points at the same time to generate a fourth comparison result of the pressure values ​​at different monitoring points at the same time, and using the fourth comparison result as the second data;

[0028] In the case that the hydraulic operating system is not equipped with a device capable of blocking free diffusion of pressure and / or causing upstream and downstream changes in pressure, the determining whether the hydraulic operating system is abnormal based on the second data includes:

[0029] Determine, according to the fourth comparison result, whether there is a situation where the pressure value of the downstream monitoring point is greater than the pressure value of the upstream adjacent monitoring point at the same time;

[0030] When the pressure value of the downstream monitoring point is greater than the pressure value of the upstream adjacent monitoring point at the same time, it is determined that the hydraulic operating system is abnormal.

[0031] In one embodiment, it further includes:

[0032] When there is no situation where the pressure value of the downstream monitoring point is greater than the pressure value of the upstream adjacent monitoring point at the same time, it is determined whether the pressure values ​​of each monitoring point at the same time are within the standard pressure range corresponding to each monitoring point;

[0033] When there is a pressure value that is not within the standard pressure interval corresponding to the monitoring point, it is determined that there is an abnormality in the hydraulic operating system.

[0034] The present application also provides a hydraulic operating system alarm device, comprising:

[0035] An acquisition module, used to acquire first data of each monitoring point of the hydraulic operating system, wherein the first data includes pressure distribution data of each monitoring point and / or volumetric efficiency of the hydraulic operating system;

[0036] A generating module, configured to generate second data according to the first data, wherein the second data includes at least one of the following data:

[0037] The first comparison result of the pressure value at each monitoring point with the standard curve, the second comparison result of the pressure curve at the same monitoring point in different periods, the third comparison result of the volumetric efficiency at different periods, and the fourth comparison result of the pressure values ​​at different monitoring points at the same time;

[0038] A judging module, used for judging whether there is an abnormality in the hydraulic operating system according to the second data;

[0039] The alarm module is used to issue an alarm prompt when there is an abnormality in the hydraulic operating system.

[0040] In one embodiment, the first data is a pressure value of a monitoring point, and the generating module includes:

[0041] A first comparison submodule is used to compare the pressure value of each monitoring point with the pressure value of the standard curve corresponding to each monitoring point at the same time point when the hydraulic operating system is running, so as to generate a first comparison result between the pressure value of each monitoring point and the standard curve, and use the first comparison result as the second data;

[0042] The judging module comprises:

[0043] The first determination submodule is used to determine that an abnormality exists in the hydraulic operating system when the first comparison result indicates that the difference between the pressure value of each monitoring point and the pressure value of the standard curve corresponding to each monitoring point at the same time point is greater than a first preset value.

[0044] In one embodiment, the first data is a pressure curve of a monitoring point, and the generating module includes:

[0045] The second comparison submodule is used to compare the pressure curves of different periods of the same monitoring point to generate a second comparison result of the pressure curves of different periods of the same monitoring point, and use the second comparison result of the pressure curves of different periods of the same monitoring point as the second data, wherein the second comparison result is the comparison result of the pressure curves of adjacent periods of the same monitoring point and / or the comparison result of the pressure curves of the current period and the initial period of the same monitoring point.

[0046] In one embodiment, the judgment module includes:

[0047] A second determination submodule is used to determine that the hydraulic operating system has an abnormality when the comparison result of the pressure curves of adjacent periods of the same monitoring point indicates that there is a numerical point in the pressure curves of adjacent periods with a difference value greater than a second preset value;

[0048] or

[0049] When the comparison result of the pressure curves of the current cycle and the initial cycle of the same monitoring point indicates that there is a numerical point where the difference between the pressure curve of the current cycle and the pressure curve of the initial cycle is greater than a third preset value, it is determined that the hydraulic operating system is abnormal;

[0050] In one embodiment, the first data is volumetric efficiency of different cycles, and the generating module includes:

[0051] A third comparison submodule, used for comparing the volumetric efficiencies of different periods to generate a third comparison result of the volumetric efficiencies of different periods, and using the third comparison result as the second data;

[0052] The judging module comprises:

[0053] The third determination submodule is used to determine that an abnormality exists in the hydraulic operating system when the third comparison result indicates that the difference value of the volumetric efficiency in different cycles is greater than a fourth preset value.

[0054] In one embodiment, the first data is the pressure values ​​at different monitoring points at the same time, and the generating module includes:

[0055] a fourth comparison submodule, used for comparing the pressure values ​​at different monitoring points at the same time to generate a fourth comparison result of the pressure values ​​at different monitoring points at the same time, and using the fourth comparison result as the second data;

[0056] In the case that the hydraulic operating system is not equipped with a device capable of blocking free diffusion of pressure and / or causing upstream and downstream changes in pressure, the judgment module includes:

[0057] A first judgment submodule, used for judging whether there is a situation where the pressure value of the downstream monitoring point is greater than the pressure value of the upstream adjacent monitoring point at the same time according to the fourth comparison result;

[0058] The fourth determination submodule is further configured to determine that an abnormality exists in the hydraulic operating system when a pressure value at a downstream monitoring point is greater than a pressure value at an upstream adjacent monitoring point at the same time.

[0059] In one embodiment, the judgment module further includes:

[0060] The second judgment submodule is used to judge whether the pressure values ​​of each monitoring point at the same time are within the standard pressure range corresponding to each monitoring point when there is no situation where the pressure value of the downstream monitoring point is greater than the pressure value of the upstream adjacent monitoring point at the same time;

[0061] The fifth determination submodule is used to determine that an abnormality exists in the hydraulic operating system when there is a pressure value that is not within the standard pressure interval corresponding to the monitoring point.

[0062] The present application also provides a hydraulic operating system alarm system, comprising:

[0063] at least one processor; and,

[0064] a memory communicatively connected to the at least one processor; wherein,

[0065] The memory stores instructions that can be executed by the at least one processor, and the instructions are executed by the at least one processor to implement the hydraulic operating system alarm method recorded in any of the above embodiments.

[0066] The present application also provides a computer-readable storage medium. When the instructions in the storage medium are executed by a processor corresponding to the hydraulic operating system alarm system, the hydraulic operating system alarm system can implement the hydraulic operating system alarm method recorded in any of the above embodiments.

[0067] Other features and advantages of the present application will be described in the following description, and partly become apparent from the description, or be understood by practicing the present application. The purpose and other advantages of the present application can be realized and obtained by the structures specifically pointed out in the written description, claims, and drawings.

[0068] The technical solution of the present application is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0069] The accompanying drawings are used to provide a further understanding of the present application and constitute a part of the specification. Together with the embodiments of the present application, they are used to explain the present application and do not constitute a limitation of the present application. In the accompanying drawings:

[0070] Figure 1 This is a flow chart of a hydraulic operating system alarm method in one embodiment of the present application;

[0071] Figure 2 This is a structural schematic diagram of a hydraulic operating system alarm device in one embodiment of the present application;

[0072] Figure 3 This is a schematic diagram of the hardware structure of a hydraulic operating system alarm system in one embodiment of the present application. DETAILED DESCRIPTION

[0073] The preferred embodiments of the present application are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present application and are not used to limit the present application.

[0074] Figure 1 Flow chart of a hydraulic operating system alarm method in one embodiment of the present application, as shown in FIG. Figure 1 As shown, the method can be implemented as the following steps S101-S104:

[0075] In step S101, first data of each monitoring point of the hydraulic operating system is obtained, wherein the first data includes pressure distribution data of each monitoring point and / or volumetric efficiency of the hydraulic operating system;

[0076] In step S102, second data is generated according to the first data, wherein the second data includes at least one of the following data:

[0077] The first comparison result of the pressure value at each monitoring point with the standard curve, the second comparison result of the pressure curve at the same monitoring point in different periods, the third comparison result of the volumetric efficiency at different periods, and the fourth comparison result of the pressure values ​​at different monitoring points at the same time;

[0078] In step S103, judging whether there is an abnormality in the hydraulic operating system according to the second data;

[0079] In step S104, when an abnormality occurs in the hydraulic operating system, an alarm is issued.

[0080] In the present application, in order to monitor abnormal situations of the hydraulic operating system, the first data of each monitoring point of the hydraulic operating system is obtained, wherein the first data includes the pressure distribution data of each monitoring point and / or the volumetric efficiency of the hydraulic operating system. In the present application, multiple monitoring points can be set to monitor different positions in the hydraulic operating system, such as setting multiple monitoring points in sequence according to the upstream and downstream order of the system, monitoring the pressure of multiple monitoring points, and obtaining the pressure distribution data of each monitoring point. The pressure distribution data can be continuous pressure distribution data of the same monitoring point in different periods, or it can be pressure distribution data of different monitoring points at the same time.

[0081] Since the system pressure or output liquid volume will change when an abnormality occurs in the system, in order to determine whether an abnormality occurs in the system, the present application generates second data based on the first data, wherein the second data includes at least one of the following data: a first comparison result of the pressure value of each monitoring point with the standard curve, a second comparison result of the pressure curve of different periods at the same monitoring point, a third comparison result of the volumetric efficiency of different periods, and a fourth comparison result of the pressure values ​​of different monitoring points at the same time.

[0082] Determine whether the hydraulic operating system is abnormal based on the second data. After obtaining the second data, it can be determined through the second data whether the monitoring data obtained at each monitoring point meets the standard value, or whether the monitoring data of multiple consecutive monitoring cycles meets the preset rules, or whether the monitoring data between different monitoring points meets the preset rules. When the second data does not meet the preset rules, it is determined that the system is abnormal.

[0083] When the hydraulic operating system has an abnormality, an alarm is issued.

[0084] The beneficial effect of the present application is that: by acquiring the first data of each monitoring point of the hydraulic operating system, wherein the first data includes the pressure distribution data of each monitoring point and / or the volumetric efficiency of the hydraulic operating system; and generating the second data according to the first data, wherein the second data includes at least one of the following data: the first comparison result of the pressure value of each monitoring point with the standard curve, the second comparison result of the pressure curve of different periods of the same monitoring point, the third comparison result of the volumetric efficiency of different periods, and the fourth comparison result of the pressure value of different monitoring points at the same time, so as to achieve the comparison of the monitoring point value with the corresponding standard value, the comparison between different periods of the same monitoring point, and the comparison between different monitoring points before the system is abnormal, and to judge whether the hydraulic operating system has an abnormality according to the second data, and to issue an alarm when the hydraulic operating system has an abnormality. Then, an alarm is issued when the system is abnormal, so as to prompt the operator to perform maintenance and reduce the risk of equipment failure.

[0085] In one embodiment, the first data is the pressure value of the monitoring point, and the above step S102 can be implemented as the following step A1:

[0086] In step A1, when the hydraulic operating system is running, the pressure value of each monitoring point is compared with the pressure value of the standard curve corresponding to each monitoring point at the same time point to generate a first comparison result between the pressure value of each monitoring point and the standard curve, and the first comparison result is used as the second data;

[0087] The above step S103 can be implemented as the following step A2:

[0088] In step A2, when the first comparison result indicates that the difference between the pressure value of each monitoring point and the pressure value of the standard curve corresponding to each monitoring point at the same time point is greater than a first preset value, it is determined that the hydraulic operating system has an abnormality.

[0089] In this embodiment, in order to compare the pressure value of each monitoring point of the current system with the standard pressure value of the system under normal operation to determine whether the system is abnormal, the system records the pressure change characteristics under different hydraulic oil pressures and flows in advance during operation, generates a complete standard curve of each monitoring point in the system operation cycle, and stores the standard curve corresponding to each monitoring point.

[0090] When the hydraulic operating system is running, the pressure value of each monitoring point is compared with the pressure value of the standard curve corresponding to each monitoring point at the same time point to generate a first comparison result of the pressure value of each monitoring point and the standard curve, and the first comparison result is used as the second data. Specifically, taking a certain monitoring point as an example, first obtain the operating time point t of the current system in a complete operating cycle and the pressure value P of the monitoring point x , according to the running time point t, obtain the pressure value P at the same time point from the standard curve xs , the current pressure value P of the monitoring point x The pressure value P at the same time point obtained from the standard curve xs A comparison is performed, and the first comparison result obtained is used as the second data. It should be noted that the comparison process has multiple forms. For example, the difference between the current pressure value and the pressure value obtained from the standard curve at the same time point can be directly obtained as the second data; or whether the difference between the current pressure value and the pressure value obtained from the standard curve at the same time point exceeds a preset interval can be obtained, and whether it exceeds the preset interval or does not exceed the preset interval is used as the second data. This application does not limit the specific comparison form.

[0091] When the first comparison result indicates that the difference between the pressure value of each monitoring point and the pressure value of the standard curve corresponding to each monitoring point at the same time point is greater than the first preset value, it is determined that the hydraulic operating system has an abnormality. For example, if the second data is greater than the first preset value or exceeds the preset interval, it indicates that the difference between the pressure value of each monitoring point and the pressure value of the standard curve corresponding to each monitoring point at the same time point is greater than the first preset value, then it is determined that the hydraulic operating system has an abnormality.

[0092] The beneficial effect of this embodiment is that by pre-acquiring a standard curve of the pressure at each monitoring point of the system under normal operating conditions, and then during the operation of the system, comparing the pressure value obtained at each monitoring point with the corresponding pressure value in the standard curve to determine whether the pressure value at each monitoring point is within a normal range; when the pressure value at each monitoring point deviates from the pressure value of the standard curve, it indicates that the pressure monitored at the point is abnormal and the system is abnormal.

[0093] In one embodiment, the first data is the pressure value of the monitoring point, and the above step S102 can be implemented as the following step A11:

[0094] In step A11, when the hydraulic operating system is running, the pressure value of each monitoring point is compared with the pressure value of the standard curve corresponding to each monitoring point at the same time point to generate a first comparison result of the pressure curve of each monitoring point with the standard curve, and the first comparison result is used as the second data;

[0095] The above step S103 can be implemented as the following step A12:

[0096] In step A12, when the first comparison result indicates that the difference between the pressure curve at the monitoring point and the standard curve is greater than a fifth preset value, the second data is determined to determine that an abnormality occurs in the hydraulic operating system.

[0097] In this embodiment, in order to reduce the situation of false alarm caused by the error of obtaining the pressure value at a certain time point, when the hydraulic operating system is running, the pressure value of each monitoring point is compared with the pressure value of the standard curve corresponding to each monitoring point at the same time point to generate a first comparison result of the pressure curve of each monitoring point and the standard curve, and the first comparison result is used as the second data. Specifically, taking a certain monitoring point as an example, the pressure value monitored at multiple preset time points in the current cycle is subtracted from the pressure value monitored by the standard curve at multiple preset time points, and the difference values ​​of multiple preset time points are summed to obtain the second data. For another example, the similarity between the pressure curve of each monitoring point and the standard curve in the current cycle can also be calculated, and the calculated similarity is used as the second data. Then, when the first comparison result indicates that the difference between the pressure curve of the monitoring point and the standard curve is greater than the fifth preset value, the second data is determined to determine that the hydraulic operating system is abnormal.

[0098] The beneficial effect of this embodiment is that by comparing the pressure curve of each monitoring point in the current cycle with the standard curve, false alarms caused by inaccurate monitoring data at a certain point in time are avoided.

[0099] In one embodiment, the first data is a pressure curve of a monitoring point, and the above step S102 can be implemented as the following step B1:

[0100] The pressure curves of different periods at the same monitoring point are compared to generate a second comparison result of the pressure curves of different periods at the same monitoring point, and the second comparison result of the pressure curves of different periods at the same monitoring point is used as the second data, wherein the second comparison result is the comparison result of the pressure curves of adjacent periods of the same monitoring point and / or the comparison result of the pressure curves of the current period and the initial period of the same monitoring point.

[0101] In this embodiment, by comparing the pressure curves of multiple periods of the same monitoring point, the pressure curves of different periods of the same monitoring point are compared to generate a second comparison result of the pressure curves of different periods of the same monitoring point, and the second comparison result of the pressure curves of different periods of the same monitoring point is used as the second data to determine whether the system is abnormal based on the second data.

[0102] Specifically, first, when the system is running, the pressure values ​​of each monitoring point are obtained to generate a corresponding pressure curve, wherein the real-time pressure obtained at each monitoring point can be directly used to generate a pressure curve C; in one embodiment, in order to reduce the impact of volatility in different periods, the pressure data obtained for a preset number n periods before the current period are statistically analyzed, for example, the pressure values ​​of each period at the same time point are averaged as the pressure value of the current period at that time point, and then the pressure curve C is generated using the statistically analyzed pressure values.

[0103] Then, after obtaining the pressure curve, the pressure curves of different periods of the same monitoring point are compared to generate a second comparison result of the pressure curves of different periods of the same monitoring point, wherein the second comparison result can be the comparison result of the pressure curves of adjacent periods of the same monitoring point, or the comparison result of the pressure curves of the current period and the initial period of the same monitoring point. The specific comparison process can be implemented in a variety of ways. For example, taking a certain monitoring point as an example, the pressure values ​​monitored at multiple preset time points in the current period are subtracted from the pressure values ​​monitored at multiple preset time points of the pressure curve of the adjacent period or the initial period, and the differences of the multiple preset time points are summed to obtain a second comparison result, which is the second data. For another example, the similarity between the pressure curve of each monitoring point in the current period and the pressure curve of the adjacent period or the initial period can be calculated, and the calculated similarity can be used as the second data.

[0104] In one embodiment, the above step S103 may be implemented as the following step B2:

[0105] In step B2, when the comparison result of the pressure curves of adjacent periods of the same monitoring point indicates that there is a numerical point in the pressure curves of adjacent periods whose difference value is greater than a second preset value, it is determined that the hydraulic operating system has an abnormality;

[0106] or

[0107] When the comparison result of the pressure curves of the current cycle and the initial cycle of the same monitoring point indicates that there is a numerical point where the difference between the pressure curve of the current cycle and the pressure curve of the initial cycle is greater than a third preset value, it is determined that the hydraulic operating system is abnormal;

[0108] In this embodiment, the pressure curve obtained in the current cycle is compared with that in the previous cycle. When the comparison result of the pressure curves of adjacent cycles of the same monitoring point indicates that there are numerical points in the pressure curves of the adjacent cycles whose difference values ​​are greater than a second preset value, for example, when the pressure peak value of the current cycle is too different from the pressure peak value of the previous cycle, it indicates that there is a sudden change in the current system pressure, and it is determined that there is an abnormality in the hydraulic operating system.

[0109] The standard curve is established or calculated according to statistical methods after actual measurement. Once the standard curve of the first calibration is generated, it will be permanently saved and compared with the standard curve of this stage after a long time, so as to determine the creep of the standard curve. Therefore, in this embodiment, the pressure curve obtained in the current cycle can also be compared with the pressure curve of the initial cycle to monitor whether the system pressure curve has creeped. When the comparison result of the pressure curve of the current cycle and the initial cycle at the same monitoring point indicates that there is a numerical point in which the difference value between the pressure curve of the current cycle and the pressure curve of the initial cycle is greater than the third preset value, it is determined that the hydraulic operating system has an abnormality.

[0110] In one embodiment, the above step S103 may also be implemented as the following step B3:

[0111] In step B3, when the overall difference value of adjacent periodic curves at the same monitoring point is greater than a sixth preset value, it is determined that the hydraulic operating system has an abnormality;

[0112] or

[0113] When the overall difference between the current cycle curve and the initial cycle curve at the same monitoring point is greater than a sixth preset value, it is determined that an abnormality exists in the hydraulic operating system.

[0114] In this embodiment, the overall pressure curves of different periods at each monitoring point are compared to determine whether the system is abnormal. For example, the difference of the overall pressure curve at the preset time point is summed, or the similarity between the overall pressure curves is calculated. The pressure curve obtained in the current period is compared with the previous period to monitor whether the system pressure has a sudden change. When the overall difference value of the adjacent period curves at the same monitoring point is greater than the sixth preset value, it is determined that the hydraulic operating system has an abnormality. Alternatively, the pressure curve obtained in the current period is compared with the pressure curve of the initial period to monitor whether the system pressure curve creeps. For example, the time between the current period and the initial period must have a certain span (such as several months, half a year), and the interval period must have a certain number (such as more than 10,000 periods). Therefore, when the overall difference value between the current period and the initial period curve at the same monitoring point is greater than the sixth preset value, it is determined that the hydraulic operating system has an abnormality.

[0115] In one embodiment, the first data is volumetric efficiency of different cycles, and the above step S102 can be implemented as the following step C1:

[0116] In step C1, the volumetric efficiencies of different cycles are compared to generate a third comparison result of the volumetric efficiencies of different cycles, and the third comparison result is used as the second data;

[0117] The above step S103 can be implemented as the following step C2:

[0118] In step C2, when the third comparison result indicates that the difference value of the volumetric efficiency in different cycles is greater than a fourth preset value, it is determined that the hydraulic operating system is abnormal.

[0119] In this embodiment, the volumetric efficiency of the hydraulic operating system is monitored to determine whether the hydraulic operating system is abnormal. The volumetric efficiency refers to the ratio of the output liquid of the hydraulic operating system to the capacity of the hydraulic pump during operation, indicating the ratio of the actual output liquid of the hydraulic operating system to the theoretical output liquid. The volumetric efficiency is calculated based on the real-time monitored pressure data. The volumetric efficiency is calculated based on a stroke as a cycle. After each stroke, the controller will calculate the volumetric efficiency once.

[0120] The volumetric efficiency of different cycles is compared to generate a third comparison result of the volumetric efficiency of different cycles, and the third comparison result is used as the second data. Among them, the volumetric efficiency of the hydraulic operating system can directly use the ratio of the liquid flow rate monitored in the current cycle to the capacity of the hydraulic pump as the volumetric efficiency of the current cycle; in addition, in order to reduce the impact of data fluctuations, the monitoring value of the volumetric efficiency of a preset number m monitoring cycles before the current cycle can be used as the volumetric efficiency of the current cycle. There are many ways to implement the specific comparison process. For example, under a certain output pressure selected by the hydraulic operating system, the change value of the volumetric efficiency of the current cycle at the same monitoring point and the volumetric efficiency of the previous cycle or the initial cycle is used as the second data. For example, the number of strokes required to output an equal amount of liquid in the current cycle can also be determined based on the volumetric efficiency of the hydraulic operating system, and the difference in the required number of strokes is used as the second data.

[0121] When the third comparison result indicates that the difference in volumetric efficiency between different cycles is greater than a fourth preset value, it is determined that the hydraulic operating system is abnormal. For example, if the volumetric efficiency of the current cycle decreases too much or the number of strokes required increases significantly, it indicates that the hydraulic operating system is abnormal.

[0122] The beneficial effect of this embodiment is that the ability of the hydraulic operating system to output liquid is monitored through the volumetric efficiency of the hydraulic operating system. When the difference in liquid capacity output at the same monitoring point in different periods is greater than a fourth preset value, it indicates that the system's ability to output liquid has changed, indicating that an abnormality has occurred in the hydraulic operating system.

[0123] In one embodiment, the first data is the pressure value of different monitoring points at the same time, and the above step S102 can be implemented as the following step D1:

[0124] In step D1, the pressure values ​​at different monitoring points at the same time are compared to generate a fourth comparison result of the pressure values ​​at different monitoring points at the same time, and the fourth comparison result is used as the second data;

[0125] In the case that the hydraulic operating system is not equipped with a device capable of blocking free diffusion of pressure and / or causing upstream and downstream pressure changes, the above step S103 may be implemented as the following steps D2-D3:

[0126] In step D2, judging whether there is a situation where the pressure value of the downstream monitoring point is greater than the pressure value of the upstream adjacent monitoring point at the same time according to the fourth comparison result;

[0127] In step D3, when the pressure value of the downstream monitoring point is greater than the pressure value of the upstream adjacent monitoring point at the same time, it is determined that the hydraulic operating system is abnormal.

[0128] In this embodiment, the pressure values ​​obtained from multiple monitoring points in the system are compared to determine whether the system is abnormal.

[0129] The pressure values ​​at different monitoring points at the same time are compared to generate a fourth comparison result of the pressure values ​​at different monitoring points at the same time, and the fourth comparison result is used as the second data. For example, corresponding to the liquid hydrogen system, assuming that the outlet pressure of the liquid hydrogen pump is P1, the pressure of the second point closest to the downstream (such as the vaporizer pressure) is P2, the pressure of the third point downstream (such as the buffer tank pressure) is P3, and so on until the last pressure Pn, the digital serial numbers are arranged in sequence according to the upstream and downstream relationship. By comparing the pressure values ​​at different monitoring points, the fourth comparison result, that is, the order of the pressure values, can be obtained, and the fourth comparison result is used as the second data.

[0130] According to the fourth comparison result, it is determined whether there is a situation where the pressure value of the downstream monitoring point is greater than the pressure value of the upstream adjacent monitoring point at the same time. Because under normal system operation, when the hydraulic operating system is not equipped with equipment that can block the free diffusion of pressure and / or cause pressure changes upstream and downstream (for example, a one-way valve, a control valve, an ejector, etc.), the pressure values ​​of each monitoring point are equal or decrease in sequence according to the upstream and downstream pressure values, that is, when the digital sequence is arranged in sequence according to the upstream and downstream relationship, the following logic is satisfied: P1≥P2≥P3≥...≥Pn. For example, if there is a vehicle for hydrogenation, at this time, with the output of downstream hydrogen, the downstream pressure decreases, and the upstream pressure is greater than the downstream pressure; when there is no vehicle for hydrogenation, the outlet pressure of the hydraulic pump is equal to the carburetor pressure and the pressure of the buffer tank behind. Therefore, when there is a situation where the pressure value of the downstream monitoring point is greater than the pressure value of the upstream adjacent monitoring point at the same time, it is determined that the hydraulic operating system is abnormal.

[0131] In addition, in the case where the hydraulic operating system is equipped with a device capable of blocking free diffusion of pressure and / or causing upstream and downstream pressure changes, a comparison is performed based on specific characteristics of pressure changes in the process system that can be caused by the device, and the comparison result generates second data. The determining whether the hydraulic operating system is abnormal based on the second data includes:

[0132] According to the fourth comparison result, it is judged whether the pressure value of the downstream monitoring point of the front section of the device capable of blocking the free diffusion of pressure and / or causing the upstream and downstream changes of pressure is greater than the pressure value of the upstream adjacent monitoring point at the same time, and / or whether the pressure value of the downstream monitoring point of the rear section of the device capable of blocking the free diffusion of pressure and / or causing the upstream and downstream changes of pressure is greater than the pressure value of the upstream adjacent monitoring point at the same time, and / or whether the pressure difference between the front section of the device capable of blocking the free diffusion of pressure and / or causing the upstream and downstream changes of pressure and the rear section of the device capable of blocking the free diffusion of pressure and / or causing the upstream and downstream changes of pressure is greater than the preset pressure difference, and / or whether the change rate of the pressure difference between the front section of the device capable of blocking the free diffusion of pressure and / or causing the upstream and downstream changes of pressure and the rear section of the device capable of blocking the free diffusion of pressure and / or causing the upstream and downstream changes of pressure is greater than the preset pressure difference change rate;

[0133] When the pressure value of the downstream monitoring point of the front section of the equipment that can block the free diffusion of pressure and / or cause the upstream and downstream changes of pressure is greater than the pressure value of the adjacent upstream monitoring point at the same time, or the pressure value of the downstream monitoring point of the rear section of the equipment that can block the free diffusion of pressure and / or cause the upstream and downstream changes of pressure is greater than the pressure value of the adjacent upstream monitoring point at the same time, or the pressure difference between the front section of the equipment that can block the free diffusion of pressure and / or cause the upstream and downstream changes of pressure and the rear section of the equipment that can block the free diffusion of pressure and / or cause the upstream and downstream changes of pressure is greater than the preset pressure difference, and / or the change rate of the pressure difference between the front section of the equipment that can block the free diffusion of pressure and / or cause the upstream and downstream changes of pressure and the rear section of the equipment that can block the free diffusion of pressure and / or cause the upstream and downstream changes of pressure is greater than the preset pressure difference change rate, it is determined that the hydraulic operating system has an abnormality.

[0134] For example, as the liquid hydrogen absorbs heat from the environment, it continuously vaporizes in the vaporizer, increases temperature and pressure, and also increases the pressure of the buffer tank. When a device capable of preventing free diffusion of pressure and / or causing upstream and downstream pressure changes is installed, the outlet pressure of the hydraulic pump will not increase accordingly. At this time, there may be a situation where the outlet pressure of the hydraulic pump is low, and the vaporizer pressure is equal to the buffer tank pressure and higher than the outlet pressure of the hydraulic pump. At this time, it is impossible to judge whether the system pressure is normal according to the complete upstream and downstream pressures of the system. Therefore, when a device capable of preventing free diffusion of pressure and / or causing upstream and downstream pressure changes is installed, other judgment rules should be added. According to the upstream and downstream relationship of the front-end process of the device capable of preventing free diffusion of pressure and / or causing upstream and downstream pressure changes, and the upstream and downstream relationship of the rear-end process of the device capable of preventing free diffusion of pressure and / or causing upstream and downstream pressure changes, it is judged separately whether the pressure of the downstream monitoring point is greater than the pressure of the upstream adjacent monitoring point. It is also possible to judge whether the system is abnormal according to whether the pressure difference before and after the device capable of preventing free diffusion of pressure and / or causing upstream and downstream pressure changes is greater than the preset pressure difference.

[0135] It should be noted that the location of the potential failure point of the system can also be determined based on the above logic rules.

[0136] When the pressure value distribution of different monitoring points at the same time is not equal or decreasing in sequence from upstream to downstream, determine the monitoring point with the lowest pressure value among all monitoring points; when the monitoring point with the lowest pressure value is the middle monitoring point of the sequence of monitoring points, it means that the monitoring point with the lowest pressure value is a leakage point.

[0137] Furthermore, the pressure change rate of the monitoring point with the lowest pressure value is calculated, and the alarm level is determined according to the pressure change rate. When the pressure change rate is greater than the preset change rate, it is judged that the pressure leakage is large, and the alarm is interlocked and the device is shut down or the valves before and after the monitoring point are closed.

[0138] The beneficial effect of this embodiment is that there is no need to predetermine the standard pressure value range for each monitoring point. By directly comparing the pressure values ​​of different monitoring points at the same time, when the pressure value order of each monitoring point does not satisfy the rule that the upstream and downstream pressure values ​​are equal or decrease in sequence, it is determined that there is an abnormality in the current system, and the location of the leakage point is determined according to the pressure value order of each monitoring point.

[0139] In one embodiment, the method can also be implemented as the following steps D4-D5:

[0140] In step D4, when there is no situation where the pressure value of the downstream monitoring point is greater than the pressure value of the upstream adjacent monitoring point at the same time, it is determined whether the pressure values ​​of each monitoring point at the same time are within the standard pressure range corresponding to each monitoring point;

[0141] In step D5, when there is a pressure value that is not within the standard pressure interval corresponding to the monitoring point, it is determined that there is an abnormality in the hydraulic operating system.

[0142] In this embodiment, when there is no situation where the pressure value of the downstream monitoring point is greater than the pressure value of the upstream adjacent monitoring point at the same time, the pressure value of each monitoring point at the same time is compared with the standard pressure interval corresponding to each monitoring point at that time to determine whether it is within the standard pressure interval corresponding to each monitoring point;

[0143] When there is a pressure value that is not within the standard pressure interval corresponding to the monitoring point, it is determined that the hydraulic operating system is abnormal, and a high-pressure alarm reminder is issued for the monitoring point. Further, when the difference between the pressure value of other pressure monitoring points and the maximum value of the standard pressure interval is less than the seventh preset value, it is determined that the overall pressure of the system is high; at this time, a high-pressure alarm reminder is issued to the system, and the hydraulic operating system is controlled to lock the upstream pressure source. In addition, when the pressure difference between the monitoring point where the high-pressure alarm occurs and the adjacent downstream pressure monitoring point exceeds the eighth preset value, it is determined that the equipment or pipeline behind the monitoring point of the high-pressure alarm is blocked or the valve is abnormal, and an alarm reminder of the abnormality behind the monitoring point is issued. If the pressure of the monitoring point where the high alarm occurs is greater than a larger ninth preset value (> the eighth preset value), the upstream pressure source is locked, and when the pressure reaches the venting pressure, the venting pressure relief is opened.

[0144] The beneficial effect of this embodiment is that: it is determined whether an abnormality occurs according to the pressure value of the monitoring point, and the location of the abnormality is further determined, and measures are automatically taken to prevent danger, thereby ensuring the safety of the hydraulic operating system.

[0145] In one embodiment, the above step S103 may also be implemented as the following steps E1-E7:

[0146] In step E1, it is determined according to the first comparison result whether the pressure difference value of each monitoring point and the pressure at the same time point of the standard curve corresponding to each monitoring point is greater than a first preset value;

[0147] In step E2, when the pressure difference between the pressure value of each monitoring point and the pressure at the same time point of the standard curve corresponding to each monitoring point is not greater than the first preset value, it is determined according to the second comparison result whether there is a value point in the pressure curve of adjacent periods of the same monitoring point with a difference value greater than the second preset value;

[0148] In step E3, when there is no numerical point whose difference value is greater than the second preset value in the pressure curves of the adjacent cycles, it is determined whether there is a numerical point whose difference value is greater than the third preset value in the pressure curve of the current cycle and the pressure curve of the initial cycle of the same monitoring point;

[0149] In step E4, when there is no numerical point where the difference between the pressure curve of the current cycle and the pressure curve of the initial cycle at the same monitoring point is greater than the third preset value, it is determined whether the difference between the volumetric efficiencies of different cycles is greater than the fourth preset value;

[0150] In step E5, when the difference in volumetric efficiency between different cycles is not greater than a fourth preset value, it is determined whether there is a situation where the pressure value of the downstream monitoring point is greater than the pressure value of the upstream adjacent monitoring point at the same time;

[0151] In step E6, when there is no situation where the pressure value of the downstream monitoring point is greater than the pressure value of the upstream adjacent monitoring point at the same time, it is determined whether the pressure values ​​of each monitoring point at the same time are within the standard pressure range corresponding to each monitoring point;

[0152] In step E7, when the pressure values ​​of each monitoring point at the same time are within the standard pressure range corresponding to the monitoring point, it is determined that no abnormality occurs in the hydraulic operating system.

[0153] In this embodiment, various situations in which the system may be abnormal are monitored and eliminated one by one, by judging whether the difference between the pressure values ​​of each monitoring point and the standard curve at the same time point is less than a first preset value, judging whether there are numerical points in the pressure curves of adjacent periods of the same monitoring point with a difference value greater than a second preset value, judging whether there are numerical points in the pressure curves of the current period of the same monitoring point and the pressure curves of the initial period with a difference value greater than a third preset value, judging whether the difference in volumetric efficiency between different periods is greater than a fourth preset value, judging whether the pressure value distribution of different monitoring points at the same time decreases in sequence according to the upstream and downstream order, and judging whether the pressure values ​​of each monitoring point at the same time are within the standard pressure range corresponding to each monitoring point. If all of the above conditions are met, it is determined that there is no abnormality in the hydraulic operating system and the system is continuously monitored.

[0154] In view of the above scheme, the present application provides a general embodiment to specifically illustrate the specific judgment process: In this embodiment, when the pump is initially calibrated, the pump is operated in the calibration state, and each pressure measurement point on the pump and the upstream and downstream process systems records the real-time pressure data of each pressure measurement point under each calibration condition, and a statistical method is used to take the most representative set of data (such as the median) as the standard curve value. Then the distribution characteristics of the calibration data (such as normal distribution) are calculated according to the statistical method, and a reasonable range (such as 3 times the standard deviation) is determined according to its distribution characteristics. Within this reasonable range is defined as the normal data interval. Outside the normal interval, a certain safety margin (such as 3σ) is left, and the data outside (such as probability <6σ) is defined as abnormal data, and its interval is defined as an abnormal interval. An interlocking protection action interval is defined outside the abnormal interval. At this point, the calibration state is completed. After the pump is switched to the actual operation state, the corresponding standard curve is selected according to the operation state of the pump at that moment for real-time comparison. If the difference between the actual pressure value and the standard value exceeds 6 times the standard deviation, it is judged as abnormal by the system. An alarm will be triggered. If it exceeds a certain set range, the pump will be interlocked and stopped.

[0155] It is understandable that this embodiment is only an example, and the execution order of each judgment mechanism may not be in particular order, and those skilled in the art may flexibly adjust the execution order of each judgment mechanism as needed.

[0156] Figure 2Schematic diagram of the structure of a hydraulic operating system alarm device in one embodiment of the present application. Figure 2 As shown, the device comprises:

[0157] An acquisition module 201 is used to acquire first data of each monitoring point of the hydraulic operating system, wherein the first data includes pressure distribution data of each monitoring point and / or volumetric efficiency of the hydraulic operating system;

[0158] The generating module 202 is configured to generate second data according to the first data, wherein the second data includes at least one of the following data:

[0159] The first comparison result of the pressure value at each monitoring point with the standard curve, the second comparison result of the pressure curve at the same monitoring point in different periods, the third comparison result of the volumetric efficiency at different periods, and the fourth comparison result of the pressure values ​​at different monitoring points at the same time;

[0160] A judgment module 203, used for judging whether there is an abnormality in the hydraulic operating system according to the second data;

[0161] The alarm module 204 is used to issue an alarm when an abnormality occurs in the hydraulic operating system.

[0162] In one embodiment, the first data is a pressure value of a monitoring point, and the generating module includes:

[0163] A first comparison submodule is used to compare the pressure value of each monitoring point with the pressure value of the standard curve corresponding to each monitoring point at the same time point when the hydraulic operating system is running, so as to generate a first comparison result between the pressure value of each monitoring point and the standard curve, and use the first comparison result as the second data;

[0164] The judging module comprises:

[0165] The first determination submodule is used to determine that an abnormality exists in the hydraulic operating system when the first comparison result indicates that the difference between the pressure value of each monitoring point and the pressure value of the standard curve corresponding to each monitoring point at the same time point is greater than a first preset value.

[0166] In one embodiment, the first data is a pressure curve of a monitoring point, and the generating module includes:

[0167] The second comparison submodule is used to compare the pressure curves of different periods of the same monitoring point to generate a second comparison result of the pressure curves of different periods of the same monitoring point, and use the second comparison result of the pressure curves of different periods of the same monitoring point as the second data, wherein the second comparison result is the comparison result of the pressure curves of adjacent periods of the same monitoring point and / or the comparison result of the pressure curves of the current period and the initial period of the same monitoring point.

[0168] In one embodiment, the judgment module includes:

[0169] A second determination submodule is used to determine that the hydraulic operating system has an abnormality when the comparison result of the pressure curves of adjacent periods of the same monitoring point indicates that there is a numerical point in the pressure curves of adjacent periods with a difference value greater than a second preset value;

[0170] or

[0171] When the comparison result of the pressure curves of the current cycle and the initial cycle of the same monitoring point indicates that there is a numerical point where the difference between the pressure curve of the current cycle and the pressure curve of the initial cycle is greater than a third preset value, it is determined that the hydraulic operating system is abnormal;

[0172] In one embodiment, the first data is volumetric efficiency of different cycles, and the generating module includes:

[0173] A third comparison submodule, used for comparing the volumetric efficiencies of different periods to generate a third comparison result of the volumetric efficiencies of different periods, and using the third comparison result as the second data;

[0174] The judging module comprises:

[0175] The third determination submodule is used to determine that an abnormality exists in the hydraulic operating system when the third comparison result indicates that the difference value of the volumetric efficiency in different cycles is greater than a fourth preset value.

[0176] In one embodiment, when the first data is the pressure value of different monitoring points at the same time, the generating module includes:

[0177] a fourth comparison submodule, used for comparing the pressure values ​​at different monitoring points at the same time to generate a fourth comparison result of the pressure values ​​at different monitoring points at the same time, and using the fourth comparison result as the second data;

[0178] In the case that the hydraulic operating system is not equipped with a device capable of blocking free diffusion of pressure and / or causing upstream and downstream changes in pressure, the judgment module includes:

[0179] A first judgment submodule, used for judging whether there is a situation where the pressure value of the downstream monitoring point is greater than the pressure value of the upstream adjacent monitoring point at the same time according to the fourth comparison result;

[0180] The fourth determination submodule is further configured to determine that an abnormality exists in the hydraulic operating system when a pressure value at a downstream monitoring point is greater than a pressure value at an upstream adjacent monitoring point at the same time.

[0181] In one embodiment, the judgment module further includes:

[0182] The second judgment submodule is used to judge whether the pressure values ​​of each monitoring point at the same time are within the standard pressure range corresponding to each monitoring point when there is no situation where the pressure value of the downstream monitoring point is greater than the pressure value of the upstream adjacent monitoring point at the same time;

[0183] The fifth determination submodule is used to determine that an abnormality exists in the hydraulic operating system when there is a pressure value that is not within the standard pressure interval corresponding to the monitoring point.

[0184] The present application also provides a hydraulic operating system alarm system, comprising:

[0185] at least one processor; and,

[0186] a memory communicatively connected to the at least one processor; wherein,

[0187] The memory stores instructions that can be executed by the at least one processor, and the instructions are executed by the at least one processor to implement the hydraulic operating system alarm method recorded in any of the above embodiments.

[0188] Figure 3 FIG. 1 is a schematic diagram of the hardware structure of a hydraulic operating system alarm system in one embodiment of the present application. Figure 3 As shown, the hydraulic operating system alarm system comprises:

[0189] at least one processor 320; and,

[0190] A memory 304 in communication with the at least one processor 320; wherein,

[0191] The memory 304 stores instructions that can be executed by the at least one processor 320, and the instructions are executed by the at least one processor 320 to implement the hydraulic operating system alarm method described in any of the above embodiments.

[0192] Reference Figure 3 The hydraulic operating system alarm system 300 may include one or more of the following components: a processing component 302, a memory 304, a power component 306, a multimedia component 308, an audio component 310, an input / output (I / O) interface 312, a sensor component 314, and a communication component 316.

[0193] The processing component 302 generally controls the overall operation of the hydraulic operating system alarm system 300. The processing component 302 may include one or more processors 320 to execute instructions to complete all or part of the steps of the above method. In addition, the processing component 302 may include one or more modules to facilitate the interaction between the processing component 302 and other components. For example, the processing component 302 may include a multimedia module to facilitate the interaction between the multimedia component 308 and the processing component 302.

[0194] The memory 304 is configured to store various types of data to support the operation of the hydraulic operating system alarm system 300. Examples of such data include instructions for any application or method operating on the hydraulic operating system alarm system 300, such as text, pictures, videos, etc. The memory 304 can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic disk or optical disk.

[0195] The power supply assembly 306 provides power to the various components of the hydraulic operating system alarm system 300. The power supply assembly 306 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power to the hydraulic operating system alarm system 300.

[0196] The multimedia component 308 includes a screen that provides an output interface between the hydraulic operating system alarm system 300 and the user. In some embodiments, the screen may include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive input signals from the user. The touch panel includes one or more touch sensors to sense touch, slide, and gestures on the touch panel. The touch sensor may not only sense the boundaries of the touch or slide action, but also detect the duration and pressure associated with the touch or slide operation. In some embodiments, the multimedia component 308 may also include a front camera and / or a rear camera. When the hydraulic operating system alarm system 300 is in an operating mode, such as a shooting mode or a video mode, the front camera and / or the rear camera may receive external multimedia data. Each front camera and rear camera may be a fixed optical lens system or have a focal length and optical zoom capability.

[0197] The audio component 310 is configured to output and / or input audio signals. For example, the audio component 310 includes a microphone (MIC), and when the hydraulic operating system alarm system 300 is in an operation mode, such as an alarm mode, a recording mode, a voice recognition mode, and a voice output mode, the microphone is configured to receive an external audio signal. The received audio signal can be further stored in the memory 304 or occurs via the communication component 316. In some embodiments, the audio component 310 also includes a speaker for outputting audio signals.

[0198] I / O interface 312 provides an interface between processing component 302 and peripheral interface modules, such as keyboards, click wheels, buttons, etc. These buttons may include but are not limited to: a home button, a volume button, a start button, and a lock button.

[0199] The sensor assembly 314 includes one or more sensors for providing various aspects of status assessment for the hydraulic operating system alarm system 300. For example, the sensor assembly 314 may include an acoustic sensor. In addition, the sensor assembly 314 may detect the open / closed state of the hydraulic operating system alarm system 300, the relative positioning of components, such as the display and keypad of the hydraulic operating system alarm system 300, and the sensor assembly 314 may also detect the operating state of the hydraulic operating system alarm system 300 or a component of the hydraulic operating system alarm system 300, such as the operating state of the air distribution plate, the structural state, the operating state of the discharge scraper, etc., the orientation or acceleration / deceleration of the hydraulic operating system alarm system 300 and the temperature change of the hydraulic operating system alarm system 300. The sensor assembly 314 may include a proximity sensor configured to detect the presence of a nearby object without any physical contact. The sensor assembly 314 may also include an optical sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, the sensor assembly 314 may also include an acceleration sensor, a gyroscope sensor, a magnetic sensor, a pressure sensor, a material accumulation thickness sensor or a temperature sensor.

[0200] The communication component 316 is configured to enable the hydraulic operating system alarm system 300 to provide the ability to communicate with other devices and cloud platforms in a wired or wireless manner. The hydraulic operating system alarm system 300 can access a wireless network based on a communication standard, such as WiFi, 2G or 3G, or a combination thereof. In an exemplary embodiment, the communication component 316 receives a broadcast signal or broadcast-related information from an external broadcast management system via a broadcast channel. In an exemplary embodiment, the communication component 316 also includes a near field communication (NFC) module to facilitate short-range communication. For example, the NFC module can be implemented based on radio frequency identification (RFID) technology, infrared data association (IrDA) technology, ultra-wideband (UWB) technology, Bluetooth (BT) technology and other technologies.

[0201] In an exemplary embodiment, the hydraulic operating system alarm system 300 can be implemented by one or more application-specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable gate arrays (FPGAs), controllers, microcontrollers, microprocessors or other electronic components to execute the hydraulic operating system alarm method described in any of the above embodiments.

[0202] The present application also provides a computer-readable storage medium. When the instructions in the storage medium are executed by a processor corresponding to the hydraulic operating system alarm system, the hydraulic operating system alarm system can implement the hydraulic operating system alarm method recorded in any of the above embodiments.

[0203] Those skilled in the art will appreciate that the embodiments of the present application may be provided as methods, systems, or computer program products. Therefore, the present application may adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment in combination with software and hardware. Moreover, the present application may adopt the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage and optical storage, etc.) that contain computer-usable program code.

[0204] The present application is described with reference to the flowcharts and / or block diagrams of the methods, devices (systems), and computer program products according to the embodiments of the present application. It should be understood that each process and / or box in the flowchart and / or block diagram, as well as the combination of the processes and / or boxes in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1A device that provides the functions specified in a block or multiple blocks.

[0205] These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0206] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for implementing the process. Figure 1 A process or multiple processes and / or boxes Figure 1 The steps for the functions specified in one or more boxes.

[0207] Obviously, those skilled in the art can make various changes and modifications to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is also intended to include these modifications and variations.

Claims

1. A hydraulic operating system alarm method, characterized in that: include: Acquire first data of each monitoring point of the hydraulic operating system, generate second data according to the first data, determine whether the hydraulic operating system is abnormal according to the second data, and issue an alarm prompt when the hydraulic operating system is abnormal; Wherein, the first data includes pressure distribution data of each monitoring point and volumetric efficiency of the hydraulic operating system, and the volumetric efficiency is calculated based on the real-time monitored pressure data; The second data includes: a first comparison result of the pressure value at each monitoring point with the standard curve, and a second comparison result of the pressure curve at the same monitoring point in different periods; the second data also includes: a third comparison result of the volumetric efficiency at different periods and a fourth comparison result of the pressure values ​​at different monitoring points at the same time; Wherein, judging whether the hydraulic operating system has an abnormality according to the second data includes: when the difference value of the volumetric efficiency of different cycles represented by the third comparison result is greater than a fourth preset value, determining that the hydraulic operating system has an abnormality; The method also includes: when the pressure value distribution of different monitoring points at the same time is not equal or decreasing in sequence in the upstream and downstream order, determining the monitoring point with the lowest pressure value among the monitoring points; when the monitoring point with the lowest pressure value is the middle monitoring point of the monitoring point sequence, it indicates that the monitoring point with the lowest pressure value is a leakage point.

2. The method according to claim 1, characterized in that The first data is a pressure value of a monitoring point, and the generating the second data according to the first data includes: When the hydraulic operating system is running, the pressure value of each monitoring point is compared with the pressure value of the standard curve corresponding to each monitoring point at the same time point to generate a first comparison result of the pressure value of each monitoring point and the standard curve, and the first comparison result is used as the second data; Judging whether the hydraulic operating system is abnormal according to the second data includes: When the first comparison result indicates that the difference between the pressure value of each monitoring point and the pressure value of the standard curve corresponding to each monitoring point at the same time point is greater than a first preset value, it is determined that the hydraulic operating system has an abnormality.

3. The method according to claim 1, characterized in that The first data is a pressure curve of a monitoring point, and the generating the second data according to the first data includes: The pressure curves of different periods at the same monitoring point are compared to generate a second comparison result of the pressure curves of different periods at the same monitoring point, and the second comparison result of the pressure curves of different periods at the same monitoring point is used as the second data, wherein the second comparison result is the comparison result of the pressure curves of adjacent periods of the same monitoring point and / or the comparison result of the pressure curves of the current period and the initial period of the same monitoring point.

4. The method according to claim 3, characterized in that The determining whether the hydraulic operating system is abnormal according to the second data includes: When the comparison result of the pressure curves of adjacent periods at the same monitoring point indicates that there is a numerical point in the pressure curves of adjacent periods whose difference value is greater than a second preset value, it is determined that the hydraulic operating system is abnormal; or When the comparison result of the pressure curves of the current cycle and the initial cycle of the same monitoring point indicates that there is a numerical point where the difference between the pressure curve of the current cycle and the pressure curve of the initial cycle is greater than a third preset value, it is determined that the hydraulic operating system has an abnormality.

5. The method according to claim 1, characterized in that The first data is volumetric efficiency of different cycles, and the generating second data according to the first data includes: The volumetric efficiencies of different cycles are compared to generate a third comparison result of the volumetric efficiencies of different cycles, and the third comparison result is used as the second data.

6. The method according to claim 1, characterized in that The first data is the pressure value of different monitoring points at the same time, and the generating the second data according to the first data includes: Comparing the pressure values ​​at different monitoring points at the same time to generate a fourth comparison result of the pressure values ​​at different monitoring points at the same time, and using the fourth comparison result as the second data; In the case that the hydraulic operating system is not equipped with a device capable of blocking free diffusion of pressure and / or causing upstream and downstream changes in pressure, the determining whether the hydraulic operating system is abnormal based on the second data includes: Determine, according to the fourth comparison result, whether there is a situation where the pressure value of the downstream monitoring point is greater than the pressure value of the upstream adjacent monitoring point at the same time; When the pressure value of the downstream monitoring point is greater than the pressure value of the upstream adjacent monitoring point at the same time, it is determined that the hydraulic operating system is abnormal.

7. The method according to claim 6, characterized in that Also includes: When there is no situation where the pressure value of the downstream monitoring point is greater than the pressure value of the upstream adjacent monitoring point at the same time, it is determined whether the pressure values ​​of each monitoring point at the same time are within the standard pressure range corresponding to each monitoring point; When there is a pressure value that is not within the standard pressure interval corresponding to the monitoring point, it is determined that there is an abnormality in the hydraulic operating system.

8. A hydraulic operating system alarm device, used to implement the hydraulic operating system alarm method according to any one of claims 1 to 7, characterized in that: include: An acquisition module, used to acquire first data of each monitoring point of the hydraulic operating system, wherein the first data includes pressure distribution data of each monitoring point and / or volumetric efficiency of the hydraulic operating system; A generating module, configured to generate second data according to the first data, wherein the second data includes at least one of the following data: The first comparison result of the pressure value at each monitoring point with the standard curve, the second comparison result of the pressure curve at the same monitoring point in different periods, the third comparison result of the volumetric efficiency at different periods, and the fourth comparison result of the pressure values ​​at different monitoring points at the same time; A judging module, used for judging whether there is an abnormality in the hydraulic operating system according to the second data; The alarm module is used to issue an alarm prompt when there is an abnormality in the hydraulic operating system.

9. A hydraulic operating system alarm system, characterized in that: include: at least one processor; as well as, a memory communicatively connected to the at least one processor; wherein, The memory stores instructions that can be executed by the at least one processor, and the instructions are executed by the at least one processor to implement the hydraulic operating system alarm method according to any one of claims 1-7.

10. A computer-readable storage medium, characterized in that: When the instructions in the storage medium are executed by a processor corresponding to the hydraulic operating system alarm system, the hydraulic operating system alarm system can implement the hydraulic operating system alarm method as described in any one of claims 1 to 7.

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