CN114859020A - Method and device for predicting service life of hydraulic oil of shield tunneling machine - Google Patents
Method and device for predicting service life of hydraulic oil of shield tunneling machine Download PDFInfo
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- 239000010720 hydraulic oil Substances 0.000 title claims abstract description 81
- 230000005641 tunneling Effects 0.000 title claims abstract description 53
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Abstract
The invention provides a method and a device for predicting the service life of hydraulic oil of a shield tunneling machine, wherein the method comprises the following steps: obtaining various measurement parameter values of the hydraulic oil of the shield tunneling machine; when the measured parameter is the pollution degree parameter, obtaining a first upper limit threshold of the pollution degree parameter, obtaining a pollution degree parameter value of the current day when a propulsion system of the shield tunneling machine works for a first preset time period to enable the pollution degree parameter value to tend to be stable, and calculating a first remaining service life of the pollution degree parameter according to the first upper limit threshold and the pollution degree parameter value of the current day; when the measured parameter is a non-pollution parameter, obtaining a second upper threshold of the measured parameter, reading a measured parameter value of the measured parameter at a preset moment, and calculating a second remaining service life of the measured parameter according to the second upper threshold and the measured parameter value; and determining the minimum value of the first remaining service life and the second remaining service life as the remaining service life of the shield machine. The invention can realize the problem of hydraulic oil service life prediction with continuously changed physicochemical properties.
Description
Technical Field
The invention relates to the technical field of shield tunneling machine hydraulic oil, in particular to a method and a device for predicting the service life of the shield tunneling machine hydraulic oil.
Background
The current shield constructs quick-witted online monitoring system that has been equipped with of machine, monitors the viscosity, temperature, moisture isoparametric of hydraulic oil, accomplishes the unusual alarming function of the relevant parameter of hydraulic oil, and often when the parameter is unusual, rotten hydraulic oil has flowed into key hydraulic equipment this moment, causes the damage of important equipment, consequently, predicts the trend of hydraulic oil, changes hydraulic oil in advance, reduces the damage to equipment, and the reliability of improvement equipment becomes especially important. However, the prior art cannot realize the problem of predicting the service life of the hydraulic oil with continuously changing physicochemical properties.
Disclosure of Invention
The embodiment of the invention provides a method for predicting the service life of hydraulic oil of a shield tunneling machine, which is used for realizing the problem of predicting the service life of the hydraulic oil with continuously changed physicochemical properties, and comprises the following steps:
obtaining various measurement parameter values of the hydraulic oil of the shield tunneling machine;
when the measured parameter is a pollution degree parameter, obtaining a first upper limit threshold of the pollution degree parameter, obtaining a current pollution degree parameter value of the shield machine when a propulsion system of the shield machine works for a first preset time to enable the pollution degree parameter value of hydraulic oil to tend to be stable, and calculating a first remaining service life of the pollution degree parameter according to the first upper limit threshold and the current pollution degree parameter value;
when the measured parameter is a non-pollution parameter, obtaining a second upper threshold of the measured parameter, reading a measured parameter value of the measured parameter at a preset moment, and calculating a second remaining service life of the measured parameter according to the second upper threshold and the measured parameter value;
and determining the minimum value of the first remaining service life and the second remaining service life as the remaining service life of the shield machine.
The embodiment of the invention provides a device for predicting the service life of hydraulic oil of a shield tunneling machine, which is used for realizing the problem of predicting the service life of the hydraulic oil with continuously changed physicochemical properties, and comprises the following components:
the measurement parameter value acquisition module is used for acquiring various measurement parameter values of the hydraulic oil of the shield tunneling machine;
the service life prediction module of the pollution degree parameter is used for obtaining a first upper threshold of the pollution degree parameter when the measured parameter is the pollution degree parameter, obtaining the current pollution degree parameter value of the shield tunneling machine when the propelling system of the shield tunneling machine works for a first preset time to enable the pollution degree parameter value of hydraulic oil to tend to be stable, and calculating a first remaining service life of the pollution degree parameter according to the first upper threshold and the current pollution degree parameter value;
the non-pollution degree parameter life prediction module is used for obtaining a second upper limit threshold of the measured parameter when the measured parameter is the non-pollution degree parameter, reading the measured parameter value of the measured parameter at a preset moment, and calculating a second remaining service life of the measured parameter according to the second upper limit threshold and the measured parameter value;
and the service life determining module is used for determining the minimum value of the first remaining service life and the second remaining service life as the remaining service life of the shield machine.
The embodiment of the invention also provides computer equipment which comprises a memory, a processor and a computer program which is stored on the memory and can be operated on the processor, wherein the processor executes the computer program to realize the shield machine hydraulic oil life prediction method.
The embodiment of the invention also provides a computer readable storage medium, wherein a computer program is stored in the computer readable storage medium, and when the computer program is executed by a processor, the method for predicting the service life of the hydraulic oil of the shield tunneling machine is realized.
The embodiment of the invention also provides a computer program product, which comprises a computer program, and when the computer program is executed by a processor, the method for predicting the service life of the hydraulic oil of the shield tunneling machine is realized.
In the embodiment of the invention, various measurement parameter values of the hydraulic oil of the shield tunneling machine are obtained; when the measured parameter is a pollution degree parameter, obtaining a first upper limit threshold of the pollution degree parameter, obtaining a current pollution degree parameter value of the shield machine when a propulsion system of the shield machine works for a first preset time to enable the pollution degree parameter value of hydraulic oil to tend to be stable, and calculating a first remaining service life of the pollution degree parameter according to the first upper limit threshold and the current pollution degree parameter value; when the measured parameter is a non-pollution parameter, obtaining a second upper threshold of the measured parameter, reading a measured parameter value of the measured parameter at a preset moment, and calculating a second remaining service life of the measured parameter according to the second upper threshold and the measured parameter value; and determining the minimum value of the first remaining service life and the second remaining service life as the remaining service life of the shield machine. In the process, the service life of the hydraulic oil of the shield tunneling machine can be determined by respectively predicting the service life of the pollution degree parameter and the service life of the hydraulic oil of the non-pollution degree parameter, so that the service life of the hydraulic oil with continuously changed physicochemical properties can be predicted.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts. In the drawings:
FIG. 1 is a first flowchart of a method for predicting the service life of hydraulic oil of a shield tunneling machine according to an embodiment of the present invention;
FIG. 2 is a diagram of an online monitoring system for hydraulic oil of a shield tunneling machine according to an embodiment of the invention;
FIG. 3 is a schematic diagram of an extended monitoring apparatus according to an embodiment of the present invention;
FIG. 4 is a schematic illustration of the communication between a primary monitoring device and a plurality of extended monitoring devices;
FIG. 5 is a schematic diagram of a first oil path communicated with a bypass of a circulating cooling system through a quick connector in the embodiment of the invention;
FIG. 6 is a schematic diagram II of a hydraulic oil online monitoring system of a shield tunneling machine in the embodiment of the invention;
FIG. 7 is a flow chart of generating an alarm signal in an embodiment of the present invention;
FIG. 8 is a first schematic diagram of a device for predicting the service life of hydraulic oil of a shield tunneling machine according to an embodiment of the present invention;
FIG. 9 is a second schematic diagram of a hydraulic oil life prediction device of a shield tunneling machine according to an embodiment of the present invention;
FIG. 10 is a schematic diagram of a computer device in an embodiment of the invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the embodiments of the present invention are further described in detail below with reference to the accompanying drawings. The exemplary embodiments and descriptions of the present invention are provided to explain the present invention, but not to limit the present invention.
In the description of the present specification, the terms "comprising," "including," "having," "containing," and the like are used in an open-ended fashion, i.e., to mean including, but not limited to. Reference to the description of the terms "one embodiment," "a particular embodiment," "some embodiments," "for example," etc., means that a particular feature, structure, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. The sequence of steps involved in the embodiments is for illustrative purposes to illustrate the implementation of the present application, and the sequence of steps is not limited and can be adjusted as needed.
Fig. 1 is a first flowchart of a method for predicting the service life of hydraulic oil of a shield tunneling machine according to an embodiment of the present invention, as shown in fig. 1, including:
102, when the measured parameter is a pollution degree parameter, obtaining a first upper limit threshold of the pollution degree parameter, obtaining a current pollution degree parameter value of the shield machine when a propulsion system of the shield machine works for a first preset time to enable the pollution degree parameter value of hydraulic oil to tend to be stable, and calculating a first remaining service life of the pollution degree parameter according to the first upper limit threshold and the current pollution degree parameter value;
103, when the measured parameter is a non-pollution parameter, obtaining a second upper threshold of the measured parameter, reading a measured parameter value of the measured parameter at a preset time, and calculating a second remaining service life of the measured parameter according to the second upper threshold and the measured parameter value;
and 104, determining the minimum value of the first remaining service life and the second remaining service life as the remaining service life of the shield machine.
In step 101, obtaining multiple measurement parameter values of the hydraulic oil of the shield machine, where fig. 2 is a schematic diagram of measurement of the measurement parameters of the hydraulic oil of the shield machine in the embodiment of the present invention, and an online monitoring system for the hydraulic oil of the shield machine is used, and the online monitoring system includes:
a main monitoring device 1;
the main monitoring device 1 comprises a first type sensor 11, a first oil path 13 and a conversion module 12,
an inlet and an outlet of the first oil way 13 are respectively connected to a bypass of a circulating cooling system of the shield tunneling machine;
the first type sensor 11 is arranged between an inlet and an outlet of the first oil path 13, and is used for measuring hydraulic oil flowing in through the inlet of the first oil path 13 to obtain a pollution degree parameter value, and the hydraulic oil flows out through the outlet of the first oil path after the measurement is finished;
and the conversion module 12 is used for converting the pollution degree parameter value into a PLC signal and outputting the PLC signal in real time.
Specifically, the main monitoring device is used for measuring a pollution degree parameter, for example, the pollution degree parameter, if it is desired to continuously measure other hydraulic oil parameters, a plurality of sensors are required, and in order to achieve the purpose of adding sensors without modifying the main monitoring device, an extended monitoring device is proposed in an embodiment of the present invention, fig. 3 is a schematic diagram of the extended monitoring device in the embodiment of the present invention, and in an embodiment, the shield machine hydraulic oil online monitoring system further includes an extended monitoring device 2;
the expansion monitoring device 2 comprises a second type sensor 21 and a fourth oil path 22;
the main monitoring device further comprises a second oil path 14 and a third oil path 15;
the inlet of the second oil way of the main monitoring device is arranged between the inlet of the first oil way and the first type of sensor; the outlet of the second oil way of the main monitoring device is arranged on the outer side of the main monitoring device;
an inlet of a third oil way of the main monitoring device is arranged on the outer side of the main monitoring device; an outlet of a third oil way of the main monitoring device is arranged between an inlet of the second oil way and the first type of sensor;
an inlet of a fourth oil way of the expansion monitoring device is arranged on the outer side of the expansion monitoring device and can be communicated with an outlet of a second oil way of the main monitoring device; an outlet of a fourth oil way of the expansion monitoring device is arranged on the outer side of the expansion monitoring device and can be communicated with an inlet of a third oil way of the main monitoring device;
the second type of sensor of the expansion monitoring device is arranged between an inlet and an outlet of a fourth oil path of the expansion monitoring device and used for measuring hydraulic oil flowing in through the inlet of the fourth oil path to obtain a non-pollution degree parameter value, and the hydraulic oil flows out through the outlet of the fourth oil path after the measurement is finished;
the conversion module is further configured to: and converting the non-pollution parameter value into a PLC signal and outputting the PLC signal in real time.
Therefore, the expansion monitoring device can be communicated with the main monitoring device to form a large-scale system, and measurement of a plurality of measurement parameter values is realized.
In one embodiment, the expansion monitoring device further includes a fifth oil passage 23 and a sixth oil passage 24;
an inlet of a fifth oil way of the expansion monitoring device is arranged between an inlet of the fourth oil way and the second type sensor; an outlet of a fifth oil way of the expansion monitoring device is arranged on the outer side of the main monitoring device and can be communicated with inlets of fourth oil ways of other expansion monitoring devices;
an outlet of a sixth oil way of the expansion monitoring device is arranged between an inlet of the fifth oil way and the second type sensor; and the inlet of the sixth oil way of the expansion monitoring device is arranged on the outer side of the expansion monitoring device and can be communicated with the outlets of the fourth oil ways of other expansion monitoring devices.
The fifth oil path 23 and the sixth oil path 24 enable a plurality of extended monitoring devices to be communicated, and therefore more measurement parameter values can be obtained.
FIG. 4 is a schematic illustration of the communication between the primary monitoring device and the plurality of extended monitoring devices, thereby forming a plurality of monitoring modalities.
In the implementation of the invention, all oil passages need to be communicated and are mainly realized through the quick-connection plugs, and the quick-connection plugs are arranged at the joints of the two oil passages, so that the inflow and outflow of hydraulic oil can be controlled. When the first oil way is communicated with the bypass of the circulating cooling system, the quick connection plug of the first oil way is installed to the pressure measuring joint of the bypass of the circulating cooling system, the machine does not need to be stopped, hydraulic oil flows back to the circulating cooling system after monitoring, the installation form is simple and quick, normal tunneling of a shield is not affected, and fig. 5 is a schematic diagram of the bypass of the first oil way communicated with the circulating cooling system through the quick connection plug in the embodiment of the invention.
Fig. 6 is a schematic diagram of a second system for monitoring hydraulic oil of a shield tunneling machine in an embodiment of the present invention, and in an embodiment, the system further includes a PLC3, configured to:
judging whether the pollution degree parameter and/or the non-pollution degree parameter are abnormal or not at set time intervals based on the threshold range of the pollution degree parameter and/or the non-pollution degree parameter and the corresponding PLC signal;
and generating an alarm signal when the abnormal times of the measured parameter values of the pollution degree parameter and/or the non-pollution degree parameter in the preset period are larger than the preset times.
Fig. 7 is a flowchart of generating an alarm signal according to an embodiment of the present invention, where a parameter is a measurement parameter value of hydraulic oil, Y is a preset number of times, and a range between thresholds B and C is a threshold range, when an abnormality occurs in a measurement parameter value of a contamination degree parameter and/or a non-contamination degree parameter, only a warning occurs, and only when the abnormality number is greater than the preset number of times Y, an alarm signal occurs.
In an embodiment, the system further comprises a display system 4 for:
and displaying the measurement parameter values of the pollution degree parameters and/or the non-pollution degree parameters and corresponding alarm signals.
In an embodiment, the non-pollution degree parameter includes one or any combination of a moisture parameter, a viscosity parameter and a density parameter of the hydraulic oil.
In addition, the primary monitoring device also includes a power module 16 for powering the primary monitoring device and the extended monitoring devices in communication with the primary monitoring device.
In step 102, when the measured parameter is a pollution degree parameter, a first upper threshold of the pollution degree parameter is obtained, when a propulsion system of the shield machine works for a first preset time period to enable a pollution degree parameter value of hydraulic oil to tend to be stable, a current pollution degree parameter value of the shield machine is obtained, and a first remaining service life of the pollution degree parameter is calculated according to the first upper threshold and the current pollution degree parameter value.
In one embodiment, obtaining the current-day pollution degree parameter value of the shield tunneling machine comprises:
acquiring a pollution degree parameter value within a second preset time period for each ring of pipe pieces of the shield tunneling machine;
and taking the maximum value of the pollution degree parameter values corresponding to all the duct pieces on the same day as the pollution degree parameter value of the shield machine on the same day.
Because the filter in the hydraulic oil system is always in operation, the pollution degree of hydraulic oil is inevitably reduced, when hydraulic equipment acts, the pollution degree rises, so that the pollution degree changes frequently, and the value calculation is not easy to take, at this time, the residual service life of the pollution degree parameter can be calculated, firstly, a first upper limit threshold value M of the pollution degree parameter is set, because the pollution degree change frequency is high, only in the process of propelling the system, the pollution degree parameter changes stably, the hydraulic oil is polluted, the pollution degree of the oil liquid in the whole process can be measured through the pollution degree in the propelling process, through field observation, the pollution degree of the oil liquid tends to be stable after 10s after the propelling system works, namely the first preset time length is 10s, for each ring of pipe segments of the shield machine, the pollution degree parameter value of the propelling system is A1 in 10s to 20s after the propelling system is recommended (namely the second preset time length is 10s) through the calculation of a sensor, a1 is the average value of the pollution degree parameter values in 10s to 20s, A1 is used as the actual parameter of the current ring pipe piece assembling process, the pollution degree parameter value An of each ring pipe piece in the current day is counted, and the maximum value of the current pollution degree parameter value A1-An is used as the current pollution degree parameter value A.
In an embodiment, calculating the first remaining service life of the pollution degree parameter according to the first upper threshold and the pollution degree parameter value of the current day includes:
calculating a first difference value between the first upper threshold and the pollution degree parameter value of the current day;
calculating a second difference value between the pollution degree parameter value of the current day and the pollution degree parameter value of the previous day;
the ratio of the first difference and the second difference is determined as the first remaining service life T1 of the pollution degree parameter value.
In step 103, when the measured parameter is a non-pollution parameter, a second upper threshold of the measured parameter is obtained, the measured parameter value of the measured parameter is read at a preset time, and a second remaining service life of the measured parameter is calculated according to the second upper threshold and the measured parameter value.
When the measurement parameter is a non-pollution parameter, the variation range of the measurement parameter value is smaller, the variation trend is more stable, and the value calculation is easy. The measurement parameter value of the measurement parameter is read at a preset timing, for example, every morning, and then calculated.
In an embodiment, calculating a second remaining useful life of the measured parameter according to the second upper threshold and the measured parameter value includes:
calculating a third difference value between the second upper threshold value K and the measured parameter value;
calculating a fourth difference Δ B between the measured parameter value and the measured parameter value of the previous day;
and determining the ratio of the third difference and the fourth difference as a second residual service life T2 of the measured parameter.
In step 104, the minimum value of the first remaining service life T1 and the second remaining service life T2 is determined as the remaining service life of the shield machine.
In an embodiment, the method further comprises:
and when the residual service life of the shield tunneling machine is less than the preset days, generating alarm information.
The alarm information can be displayed on the upper computer to prompt the replacement of the hydraulic oil. And then, continuing to detect according to the set calculation mode until the residual service life T is more than the preset number of days (for example, 7 days), wherein the alarm information can not be eliminated.
In summary, in the method provided by the embodiment of the present invention, multiple measurement parameter values of the hydraulic oil of the shield machine are obtained; when the measured parameter is a pollution degree parameter, obtaining a first upper limit threshold of the pollution degree parameter, obtaining a current pollution degree parameter value of the shield machine when a propulsion system of the shield machine works for a first preset time to enable the pollution degree parameter value of hydraulic oil to tend to be stable, and calculating a first remaining service life of the pollution degree parameter according to the first upper limit threshold and the current pollution degree parameter value; when the measured parameter is a non-pollution parameter, obtaining a second upper threshold of the measured parameter, reading a measured parameter value of the measured parameter at a preset moment, and calculating a second remaining service life of the measured parameter according to the second upper threshold and the measured parameter value; and determining the minimum value of the first remaining service life and the second remaining service life as the remaining service life of the shield machine. In the process, the service life of the hydraulic oil of the shield tunneling machine can be determined by respectively predicting the service life of the pollution degree parameter and the service life of the hydraulic oil of the non-pollution degree parameter, so that the service life of the hydraulic oil with continuously changed physicochemical properties can be predicted.
The embodiment of the invention also provides a device for predicting the service life of the hydraulic oil of the shield tunneling machine, the principle of which is similar to that of a method for predicting the service life of the hydraulic oil of the shield tunneling machine, and the description is omitted here.
Fig. 8 is a first schematic diagram of a device for predicting the service life of hydraulic oil of a shield tunneling machine in an embodiment of the present invention, where the first schematic diagram includes:
a measurement parameter value obtaining module 801, configured to obtain multiple measurement parameter values of the hydraulic oil of the shield tunneling machine;
the service life prediction module 802 is configured to obtain a first upper threshold of a pollution degree parameter when the measured parameter is the pollution degree parameter, obtain a current pollution degree parameter value of the shield machine when a propulsion system of the shield machine works for a first preset time period so that the pollution degree parameter value of hydraulic oil tends to be stable, and calculate a first remaining service life of the pollution degree parameter according to the first upper threshold and the current pollution degree parameter value;
a non-pollution degree parameter life prediction module 803, configured to obtain a second upper threshold of the measurement parameter when the measurement parameter is a non-pollution degree parameter, read a measurement parameter value of the measurement parameter at a preset time, and calculate a second remaining life of the measurement parameter according to the second upper threshold and the measurement parameter value;
and the service life determining module 804 is configured to determine that the minimum value of the first remaining service life and the second remaining service life is the remaining service life of the shield machine.
In one embodiment, the pollution level parameter life prediction module is specifically configured to:
acquiring a pollution degree parameter value within a second preset time period for each ring of pipe pieces of the shield tunneling machine;
and taking the maximum value of the pollution degree parameter values corresponding to all the duct pieces on the same day as the pollution degree parameter value of the shield machine on the same day.
In one embodiment, the pollution level parameter life prediction module is specifically configured to:
calculating a first difference value between the first upper threshold and the pollution degree parameter value of the current day;
calculating a second difference value between the pollution degree parameter value of the current day and the pollution degree parameter value of the previous day;
and determining the ratio of the first difference value and the second difference value as the first remaining service life of the pollution degree parameter value.
In one embodiment, the non-contamination parameter life prediction module is specifically configured to:
calculating a third difference between the second upper threshold and the measured parameter value;
calculating a fourth difference between the measured parameter value and the measured parameter value of the previous day;
determining a ratio of the third difference to the fourth difference as a second remaining useful life of the measured parameter.
Fig. 9 is a schematic diagram of a second device for predicting the service life of hydraulic oil of a shield tunneling machine in an embodiment of the present invention, and in an embodiment, the second device further includes an alarm information generating module 901, configured to:
and when the residual service life of the shield tunneling machine is less than the preset days, generating alarm information.
In summary, in the apparatus provided in the embodiment of the present invention, the measurement parameter value obtaining module is configured to obtain a plurality of measurement parameter values of the hydraulic oil of the shield tunneling machine; the service life prediction module of the pollution degree parameter is used for obtaining a first upper threshold of the pollution degree parameter when the measured parameter is the pollution degree parameter, obtaining the current pollution degree parameter value of the shield tunneling machine when the propelling system of the shield tunneling machine works for a first preset time to enable the pollution degree parameter value of hydraulic oil to tend to be stable, and calculating a first remaining service life of the pollution degree parameter according to the first upper threshold and the current pollution degree parameter value; the non-pollution degree parameter life prediction module is used for obtaining a second upper limit threshold of the measured parameter when the measured parameter is the non-pollution degree parameter, reading the measured parameter value of the measured parameter at a preset moment, and calculating a second remaining service life of the measured parameter according to the second upper limit threshold and the measured parameter value; and the service life determining module is used for determining the minimum value of the first remaining service life and the second remaining service life as the remaining service life of the shield machine.
In the process, the service life of the hydraulic oil of the shield tunneling machine can be determined by respectively predicting the service life of the pollution degree parameter and the service life of the hydraulic oil of the non-pollution degree parameter, so that the service life of the hydraulic oil with continuously changed physicochemical properties can be predicted.
The embodiment of the present invention further provides a computer device, fig. 10 is a schematic diagram of the computer device in the embodiment of the present invention, where the computer device 1000 includes a memory 1010, a processor 1020, and a computer program 1030 stored in the memory 1010 and capable of being executed on the processor 1020, and when the processor 1020 executes the computer program 1030, the method for predicting the hydraulic oil life of the shield machine is implemented.
The embodiment of the invention also provides a computer readable storage medium, wherein a computer program is stored in the computer readable storage medium, and when the computer program is executed by a processor, the method for predicting the service life of the hydraulic oil of the shield tunneling machine is realized.
The embodiment of the invention also provides a computer program product, which comprises a computer program, and when the computer program is executed by a processor, the method for predicting the service life of the hydraulic oil of the shield tunneling machine is realized.
It will be appreciated by one skilled in the art that embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program service system embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program business systems according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are only exemplary embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (13)
1. A method for predicting the service life of hydraulic oil of a shield tunneling machine is characterized by comprising the following steps:
obtaining various measurement parameter values of the hydraulic oil of the shield tunneling machine;
when the measured parameter is a pollution degree parameter, obtaining a first upper limit threshold of the pollution degree parameter, obtaining a current pollution degree parameter value of the shield machine when a propulsion system of the shield machine works for a first preset time to enable the pollution degree parameter value of hydraulic oil to tend to be stable, and calculating a first remaining service life of the pollution degree parameter according to the first upper limit threshold and the current pollution degree parameter value;
when the measured parameter is a non-pollution parameter, obtaining a second upper threshold of the measured parameter, reading a measured parameter value of the measured parameter at a preset moment, and calculating a second remaining service life of the measured parameter according to the second upper threshold and the measured parameter value;
and determining the minimum value of the first remaining service life and the second remaining service life as the remaining service life of the shield machine.
2. The method of claim 1, wherein obtaining the day-of-day contamination parameter value for the shield tunneling machine comprises:
acquiring a pollution degree parameter value within a second preset time period for each ring of pipe pieces of the shield tunneling machine;
and taking the maximum value of the pollution degree parameter values corresponding to all the duct pieces on the same day as the pollution degree parameter value of the shield machine on the same day.
3. The method of claim 1, wherein calculating the first remaining useful life of the pollution level parameter based on the first upper threshold value and the current day pollution level parameter value comprises:
calculating a first difference value between the first upper threshold and the pollution degree parameter value of the current day;
calculating a second difference value between the pollution degree parameter value of the current day and the pollution degree parameter value of the previous day;
and determining the ratio of the first difference value and the second difference value as the first remaining service life of the pollution degree parameter value.
4. The method of claim 1, wherein calculating a second remaining useful life of the measured parameter based on the second upper threshold value, the measured parameter value, comprises:
calculating a third difference between the second upper threshold and the measured parameter value;
calculating a fourth difference between the measured parameter value and the measured parameter value of the previous day;
determining a ratio of the third difference to the fourth difference as a second remaining useful life of the measured parameter.
5. The method of claim 1, further comprising:
and when the residual service life of the shield tunneling machine is less than the preset days, generating alarm information.
6. The utility model provides a shield constructs quick-witted hydraulic oil life-span prediction device which characterized in that includes:
the measurement parameter value acquisition module is used for acquiring various measurement parameter values of the hydraulic oil of the shield tunneling machine;
the service life prediction module of the pollution degree parameter is used for obtaining a first upper threshold of the pollution degree parameter when the measured parameter is the pollution degree parameter, obtaining the current pollution degree parameter value of the shield tunneling machine when the propelling system of the shield tunneling machine works for a first preset time to enable the pollution degree parameter value of hydraulic oil to tend to be stable, and calculating a first remaining service life of the pollution degree parameter according to the first upper threshold and the current pollution degree parameter value;
the non-pollution degree parameter life prediction module is used for obtaining a second upper limit threshold of the measurement parameter when the measurement parameter is a non-pollution degree parameter, reading the measurement parameter value of the measurement parameter at a preset moment, and calculating a second residual service life of the measurement parameter according to the second upper limit threshold and the measurement parameter value;
and the service life determining module is used for determining the minimum value of the first remaining service life and the second remaining service life as the remaining service life of the shield machine.
7. The apparatus of claim 6, wherein the pollution level parameter lifetime prediction module is specifically configured to:
acquiring a pollution degree parameter value within a second preset time for each ring of pipe pieces of the shield machine;
and taking the maximum value of the pollution degree parameter values corresponding to all the duct pieces on the same day as the pollution degree parameter value of the shield machine on the same day.
8. The apparatus of claim 6, wherein the pollution level parameter lifetime prediction module is specifically configured to:
calculating a first difference value between the first upper threshold and the pollution degree parameter value of the current day;
calculating a second difference value between the pollution degree parameter value of the current day and the pollution degree parameter value of the previous day;
and determining the ratio of the first difference value and the second difference value as the first remaining service life of the pollution degree parameter value.
9. The apparatus of claim 6, wherein the non-contamination parameter life prediction module is specifically configured to:
calculating a third difference between the second upper threshold and the measured parameter value;
calculating a fourth difference between the measured parameter value and the measured parameter value of the previous day;
determining a ratio of the third difference to the fourth difference as a second remaining useful life of the measured parameter.
10. The apparatus of claim 6, further comprising an alert information generation module to:
and when the residual service life of the shield tunneling machine is less than the preset number of days, generating alarm information.
11. A computer device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, characterized in that the processor implements the method of any of claims 1 to 5 when executing the computer program.
12. A computer-readable storage medium, characterized in that the computer-readable storage medium stores a computer program which, when executed by a processor, implements the method of any one of claims 1 to 5.
13. A computer program product, characterized in that the computer program product comprises a computer program which, when being executed by a processor, carries out the method of any one of claims 1 to 5.
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