A test vehicle state parameter pre-warning method and device, computer equipment and medium

Abstract

Embodiments of the present application provide a test vehicle state parameter early warning method and device, computer equipment and medium, including the following steps: collecting test vehicle state parameter data generated in the test vehicle process through a monitoring system; dividing the early warning alarm into static threshold alarm, combined condition alarm and instantaneous value alarm; if it is static threshold alarm, selecting a single test vehicle state parameter that needs to be monitored, and generating early warning information and / or alarm information when the test vehicle state parameter does not meet the early warning threshold and / or alarm threshold; if it is combined condition alarm, selecting multiple groups of test vehicle state parameters that need to be alarmed, and generating alarm information when the combination of the multiple groups of test vehicle state parameters does not meet the set condition; if it is instantaneous value alarm, selecting the triggering condition of the signaler of a single test vehicle state parameter that needs to be monitored, and generating alarm information when the signal of the signaler is triggered. Since the scheme uses an automatic early warning method, the efficiency of test vehicle data monitoring is improved.

Description

Technical Field

[0001] This invention relates to the field of aero-engine test technology, and in particular to a method, device, computer equipment, and medium for early warning of test status parameters. Background Technology

[0002] After assembly and manufacturing, aero engines need to undergo testing to verify assembly quality and overall performance. During engine testing, a large amount of data is generated and collected simultaneously, requiring monitoring to ensure data compliance. However, due to limited personnel energy, prolonged monitoring of test data can lead to fatigue, potentially resulting in inadequate data monitoring and a risk of compromised test quality. Summary of the Invention

[0003] In view of this, embodiments of the present invention provide a method for early warning of test run status parameters to solve the technical problem of inadequate monitoring of test run data in the prior art. The method includes: A monitoring system for test run status parameters is established, and test run status parameter data generated during the test run is collected through the monitoring system. The test run status parameter data includes channel data, status data, and parameter data. Based on the alarm conditions, alarm types and alarm levels required during the test run, the warning alarms are divided into static threshold alarms, combined condition alarms and instantaneous value alarms. If it is a static threshold alarm, select a single test state parameter to be monitored from the test state parameter data. When the test state parameter does not meet the warning threshold and / or alarm threshold, generate warning information and / or alarm information. If the alarm is a combination condition, select multiple sets of test state parameters that need to be alarmed from the test state parameter data. When the combination of the multiple sets of test state parameters does not meet the set conditions, generate alarm information. If the alarm is an instantaneous value, select the trigger status of the single test state parameter signal to be monitored from the test state parameter data. When the signal of the signal is triggered, generate alarm information.

[0004] This invention also provides a pre-warning alarm device for test run status parameters to solve the technical problem of inadequate test run data monitoring in the prior art. The device includes: The monitoring system construction module is used to build a monitoring system for test run status parameters. The monitoring system collects test run status parameter data generated during the test run, wherein the test run status parameter data includes channel data, status data and parameter data. The alarm classification module is used to classify warning alarms into static threshold alarms, combined condition alarms, and instantaneous value alarms according to the alarm conditions, alarm types, and alarm levels required during the test run. The static threshold alarm module is used to select a single test state parameter to be monitored from the test state parameter data if the static threshold alarm is detected, and to generate warning information and / or alarm information when the test state parameter does not meet the warning threshold and / or alarm threshold. The combined condition alarm module is used to select multiple sets of test state parameters that need to be alarmed from the test state parameter data if the combined condition alarm is to be triggered. When the combination of the multiple sets of test state parameters does not meet the set conditions, an alarm message is generated. The instantaneous value alarm module is used to select the triggering status of the single test state parameter signal to be monitored from the test state parameter data if the instantaneous value alarm is triggered, and generate alarm information when the signal of the signal is triggered.

[0005] This invention also provides a computer device, including a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the computer program, it implements the above-mentioned method for early warning of any test run status parameters, thereby solving the technical problem of inadequate test run data monitoring in the prior art.

[0006] This invention also provides a computer-readable storage medium storing a computer program that executes the above-described pre-warning alarm method for any of the test run status parameters, in order to solve the technical problem of inadequate test run data monitoring in the prior art.

[0007] Compared with the prior art, the beneficial effects that at least one technical solution adopted in the embodiments of this specification can achieve include at least: It enables local / remote real-time early warning and alarm for all test parameters. Attached Figure Description

[0008] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0009] Figure 1 This is a flowchart of a pre-warning method for test run status parameters provided in an embodiment of the present invention; Figure 2 This is a schematic diagram of the hardware system for early warning alarms provided in an embodiment of the present invention; Figure 3 This is a business process diagram of the data acquisition service provided in an embodiment of the present invention; Figure 4This is a flowchart of the channel data acquisition and processing business process provided in an embodiment of the present invention; Figure 5 This is a flowchart of the status data acquisition and processing business process provided in an embodiment of the present invention; Figure 6 This is a flowchart of the parameter data acquisition and processing business process provided in the embodiments of the present invention; Figure 7 This is a structural block diagram of a computer device provided in an embodiment of the present invention; Figure 8 This is a structural block diagram of a test run status parameter early warning device provided in an embodiment of the present invention. Detailed Implementation

[0010] The embodiments of this application will now be described in detail with reference to the accompanying drawings.

[0011] The following specific examples illustrate the implementation of this application. Those skilled in the art can easily understand other advantages and effects of this application from the content disclosed in this specification. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. This application can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this application. It should be noted that, in the absence of conflict, the following embodiments and features in the embodiments can be combined with each other. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0012] In this embodiment of the invention, a method for early warning of test run status parameters is provided, such as... Figure 1 As shown, the method includes: Step S101: Build a monitoring system for test run status parameters, and collect test run status parameter data generated during the test run through the monitoring system. The test run status parameter data includes channel data, status data and parameter data. Step S102: Based on the alarm conditions, alarm types and alarm levels required during the test run, the warning alarms are divided into static threshold alarms, combined condition alarms and instantaneous value alarms. Step S103: If it is the static threshold alarm, select the single test state parameter to be monitored from the test state parameter data. When the test state parameter does not meet the warning threshold and / or alarm threshold, generate warning information and / or alarm information. Step S104: If it is a combined condition alarm, select multiple sets of test state parameters that need to be alarmed from the test state parameter data. When the combination of the multiple sets of test state parameters does not meet the set conditions, generate alarm information. Step S105: If it is an instantaneous alarm, select the trigger status of the single test state parameter signal to be monitored from the test state parameter data. When the signal of the signal is triggered, generate alarm information.

[0013] In specific implementation, the following steps are used to select a single test run status parameter to be monitored from the test run status parameter data. When the test run status parameter does not meet the warning threshold and / or alarm threshold, warning information and / or alarm information are generated: The alarm conditions for the test run status parameters are categorized into single-boundary-condition alarms and double-boundary-condition alarms based on the static threshold alarms. For a single-boundary-condition alarm, a warning value and an alarm value are set for the single test run status parameter. A warning message is generated when the single test run status parameter is greater than or less than the warning value, and an alarm message is generated when the single test run status parameter is greater than or less than the alarm value. For a double-boundary-condition alarm, a normal range is set for the single test run status parameter. An alarm message is generated when the single test run status parameter is outside the normal range.

[0014] In specific implementation, the following steps are used to set the warning value and alarm value of the single test run status parameter. When the single test run status parameter is greater than or less than the warning value, a warning message is generated; when the single test run status parameter is greater than or less than the alarm value, an alarm message is generated. A first warning value and a first alarm value for engine vibration are set. During the test run, real-time engine vibration is monitored. When the real-time engine vibration exceeds the first warning value, a warning message is output; when the real-time engine vibration exceeds the first alarm value, an alarm message is output. A second warning value and a second alarm value for high-pressure rotor speed are set. During the test run, the real-time high-pressure rotor speed is monitored. When the real-time high-pressure rotor speed exceeds the second warning value, a warning message is output; when the real-time high-pressure rotor speed exceeds the second alarm value, an alarm message is output. A third warning value and a third alarm value for turbine after-temperature are set. During the test run, the real-time turbine after-temperature is monitored. When the real-time turbine after-temperature is exceeded, a warning message is output. When the temperature exceeds the third warning value, a warning message is output; when the real-time turbine after-temperature exceeds the third alarm value, an alarm message is output. A fourth warning value and a fourth alarm value are set for lubricating oil pressure. During the test run, the real-time lubricating oil pressure is monitored. When the real-time lubricating oil pressure is less than the fourth warning value, a warning message is output; when the real-time lubricating oil pressure is less than the fourth alarm value, an alarm message is output. A fifth warning value and a fifth alarm value are set for low-pressure rotor speed. During the test run, the real-time low-pressure rotor speed is monitored. When the real-time low-pressure rotor speed exceeds the fifth warning value, a warning message is output; when the real-time low-pressure rotor speed exceeds the fifth alarm value, an alarm message is output.

[0015] In specific implementation, the normal range of the single test run state parameter is set through the following steps, and an alarm message is generated when the single test run state parameter is outside the normal range: The system sets a normal lubricating oil inlet temperature range and monitors the lubricating oil inlet temperature during the test run. An alarm is output when the lubricating oil inlet temperature falls outside the normal lubricating oil temperature range. Similarly, it sets a normal fuel flow rate range and monitors the fuel flow rate during the test run. An alarm is output when the fuel flow rate falls outside the normal flow rate range. Finally, it sets a normal metal shavings content range and monitors the metal shavings content during the test run. An alarm is output when the metal shavings content falls outside the normal metal shavings content range.

[0016] In specific implementation, the following steps are used to select multiple sets of test run status parameters that require alarms from the test run status parameter data. When the combination of the multiple sets of test run status parameters does not meet the set conditions, an alarm message is generated: A pressure comparison threshold is set between the onboard fuel pressure and the test bench fuel pressure. An alarm is output when the comparison value falls outside this threshold. A generator frequency threshold and a generator load threshold are also set. When the generator load is at the specified threshold, the generator frequency is monitored during testing. An alarm is output when the generator frequency falls outside this threshold. A total vibration threshold is set. An alarm is output when the total engine vibration exceeds this threshold and the rate of increase of the first harmonic rotational frequency component exceeds the rate of increase threshold. A temperature rise rate threshold and a flow rate threshold are also set. The following alarm parameters are set for the rate of increase threshold: First, when the rate of increase of exhaust temperature exceeds the temperature rate of increase threshold, the rate of increase of fuel flow exceeds the flow rate rate of increase threshold, and the rotor speed remains constant. Second, when the difference between the lubricating oil return temperature and the lubricating oil inlet temperature exceeds the difference threshold, and the rate of increase of lubricating oil consumption exceeds the fuel consumption rate of increase threshold, an alarm is output. Third, when the fluctuation of the high-pressure compressor outlet pressure exceeds the fluctuation threshold, and the engine exhibits high-frequency oscillation, an alarm is output. Fourth, when the metal shavings signal is triggered, and the increase in the vibration energy of the bearing frequency exceeds the energy threshold, an alarm is output.

[0017] In specific implementation, the following steps are used to select the trigger status of the signal device for the single test status parameter to be monitored from the test status parameter data. When the signal device is triggered, an alarm message is generated: An alarm message is output when the signal of the low lubricating oil pressure and / or low fuel pressure and / or metal shavings and / or engine compartment oil leakage and / or control system failure and / or test bench emergency stop signal and / or vibration sensor failure is triggered.

[0018] In practice, alarms are displayed in groups through the following steps: On the real-time monitoring screen, the warning information and / or alarm information are displayed in groups using numbers, bar charts, and trend curves.

[0019] like Figure 2 As shown in the figure, this embodiment of the invention establishes a set of test run status parameter monitoring software, which requires hardware facilities as the foundation for implementation. Computers are added to each test bench and monitoring room for local software deployment. Fiber optic switches are added for the centralized and distributed transmission of test run data. Servers are added for test run data processing and storage.

[0020] The test run status parameter data generated during the test run can be roughly divided into several categories: channel data, status data, and parameter data.

[0021] like Figure 3As shown, a data acquisition service is established to collect data generated during the test run. It is deployed in the local area network of each test bench and includes data information sent from designated data sources such as UDP multicast interface and bench data forwarding interface. The service supports receiving data information sent from designated data sources such as UDP multicast interface and bench data forwarding interface through the UDP interface. According to business requirements, the service uses queue service to perform data parsing, processing and storage operations on the received data packets one by one.

[0022] (1) Channel data acquisition and processing: like Figure 4 As shown, by establishing an interface with the designated bench slave computer, raw data from each channel during engine testing is received in real time. This data forms the foundation for subsequent business queries and applications. Based on predefined channel and symbol information, the raw channel data is parsed, and the collected data is organized according to mapping relationships using key and value methods to form business-meaning real-time engine monitoring information. Based on the parsed real-time channel data, relevant business elements such as test plans, test instances, data time, and data association keys are integrated, and data is persisted to the database. Finally, a publishing interface is provided to push relevant data to the test monitoring terminal based on the parsed real-time channel data.

[0023] (2) Status data acquisition and processing: like Figure 5 As shown, by establishing an interface with the designated bench slave computer, raw data from each channel during engine testing is received in real time. This data forms the foundation for subsequent business queries and applications. Based on predefined channel and symbol information, the raw status data is parsed, and the collected data is organized according to mapping relationships using key and value methods to form business-meaning real-time engine status information. This data forms the basis for data storage and data publishing. Based on the parsed real-time status data, relevant business elements such as test plans, test instances, data time, and data association keys are integrated, and data is stored in the database. Finally, based on the parsed real-time status data, a publishing interface is provided to push relevant data to the test monitoring terminal.

[0024] (3) Parameter data acquisition and processing: like Figure 6As shown, by establishing an interface with the designated test bench's lower-level machine, the service receives raw parameter data specified during the engine test process in real time. In addition to the lower-level machine interface, the data acquisition service connects to the test bench's data forwarding interface to obtain relevant parameter data. This data forms the foundation for subsequent parameter queries and applications. Based on predefined channel and symbol information, the parameter data is parsed, and the collected data is organized according to mapping relationships using key and value methods to form business-meaning parameter information relevant to the test process. This parameter information forms the basis for subsequent parameter analysis, data storage, and data publishing. Parameter analysis employs a combination of the Drools rule engine and the agile development language Groovy. Rules for judging the collected specified data are predefined according to business requirements. After collecting the corresponding data, the service determines the conclusion based on the rules and the input parameters (the collected specified data), forming the final parameter judgment conclusion.

[0025] The alarm logic for test run status parameters can be divided into: (1) Static threshold alarm (a single or double boundary of a parameter, which triggers an alarm after exceeding the boundary value), combined condition alarm (multiple parameters are combined by logical operators AND and OR, which trigger an alarm after meeting the specified conditions), instantaneous value alarm (an alarm is triggered by a certain signal).

[0026] Test run data warning alerts: Based on parameter judgment conclusions, relevant alarm information is generated for unqualified judgment conclusions, establishing parameter alarm data to lay the foundation for subsequent data operations. Based on the parsed real-time parameters and alarm data, relevant business elements such as test run plans, test run instances, data time, and data association keys are integrated, and data is persisted to the database. Based on the parsed real-time parameters and alarm data, a publishing interface is provided to push relevant data to the test run monitoring terminal.

[0027] In the test data acquisition system of each test stand, a unified naming rule is established for the names of the data acquisition channels of the test stand, and the naming of the test processes and process steps of each engine model is standardized.

[0028] In the test run monitoring software, the test run processes and process steps of each model are configured according to standardized naming, and the channel information of each test bench with standardized naming is imported into the software.

[0029] In the test drive monitoring software, parameters are categorized according to alarm logic and boundary conditions are set based on the technical requirements of the test drive status parameters. After receiving the test drive data, the software loads a pre-configured algorithm through the algorithm engine to process the data. The algorithm then analyzes the data to determine whether it is within the acceptable range. An example is shown below: (1) Static threshold alarm: 1.1) Single boundary condition: Set the warning value of vibration value V to V1 and the alarm value to V2; during the entire test run, monitor the real-time acquisition value of vibration value V. When the vibration value V is greater than V1, the software outputs a warning message. When the vibration value V is greater than V2, the software is triggered to output both the warning message and the alarm message simultaneously. Throughout the test run, the fuel pressure threshold value after the fuel pump regulator did not exceed the alarm value; exceeding it triggered an alarm. During startup, the boundary value of the turbine after-temperature t does not exceed the alarm value; exceeding it triggers an alarm. When the reverse push function is enabled, the time limit for enabling it is no more than 2 seconds; exceeding this limit will trigger an alarm.

[0030] 1.2) Dual boundary conditions: Set the boundary value of the lubricating oil inlet temperature T to T1~T2; during the entire test run, monitor the real-time acquisition value of the lubricating oil inlet temperature T, and when T exceeds the range of T1~T2, the software outputs an alarm message; During engine start-up, the boundary condition for the lubricating oil inlet pressure when the low lubricating oil pressure signal disappears is P1 to P2. Exceeding this condition triggers an alarm.

[0031] (2) Combination condition alarm: The definition of a stable state is that the engine speed N remains within the range of N1 to N2 (the corresponding data values ​​of N1 and N2 are different depending on the engine state) for 30 seconds.

[0032] 1) Set the boundary conditions for the comparison value Z (i.e. the absolute value of the difference) between the airborne fuel pressure P1 and the test bench fuel pressure P2 as Z1~Z2; During a certain stable state in the test process, monitor the comparison value Z between the airborne fuel pressure P1 and the test bench fuel pressure P2. When Z exceeds the range of Z1~Z2, the software outputs an alarm message. 2) Set the boundary conditions for the generator frequency f as f1~f2. When the generator load is X under a certain stable state during the test run, monitor the real-time acquisition value of the generator frequency f. When f exceeds the range of f1~f2, the software outputs an alarm message.

[0033] 3) When the total vibration value of the engine is greater than the total vibration value boundary, and the rise rate of the amplitude of the first harmonic rotation component is greater than the rise rate threshold, the software outputs an alarm message (rotor imbalance is aggravated, and blade loss, rotor scaling, and misalignment may occur).

[0034] 4) When the rate of increase of exhaust temperature is greater than the temperature rise rate threshold, and the rate of increase of fuel flow rate is greater than the flow rate rise rate threshold, and the rotor speed remains unchanged, the software outputs an alarm message (performance degradation warning, compressor / turbine efficiency may decrease, flow channel contamination).

[0035] 5) When the difference between the lubricating oil return temperature and the lubricating oil inlet temperature is greater than the difference threshold, and the lubricating oil consumption increase rate is greater than the oil consumption increase rate threshold, the software outputs an alarm message (bearing overheating or seal failure, which may lead to bearing wear, lubricating oil leakage, and seal wear).

[0036] 6) When the fluctuation of the high-pressure compressor outlet pressure exceeds the fluctuation threshold and the engine exhibits high-frequency oscillation, the software outputs an alarm message (a sign of surge, which may indicate compressor stall / surge).

[0037] 7) When the signal device for the metal chip signal is triggered and the increase in the vibration energy of the bearing frequency is greater than the energy threshold, the software outputs an alarm message (high risk of bearing failure, which may result in the peeling or cracking of the spindle or gearbox bearing).

[0038] (3) Instantaneous value alarm: During the operation after the engine starts successfully, the triggering status of each signal device is monitored. When the signal of a signal device such as low lubricating oil pressure, low fuel pressure, metal shavings, oil leakage in the engine compartment, control system failure, emergency stop signal on the test bench, or vibration sensor failure is triggered, the software outputs the corresponding alarm information.

[0039] On the real-time monitoring screen, warning and alarm information is displayed in groups using numbers, bar charts, and trend curves. For example: Zone A (topmost area, red text): Automatic parking parameters and highest level alarms. These include over-revving, over-temperature, over-vibration, and fire alarms.

[0040] Section B (left): Core performance parameters. Speed, thrust / torque, exhaust temperature, fuel flow. Includes real-time trend curves.

[0041] Zone C (Central): Mechanical health parameters. All vibration values, lubricating oil pressure / temperature, and metal shavings signals. Vibration zone spectrum waterfall plot.

[0042] Section D (right side): System status parameters, including fuel pressure, control feedback, servo pressure, and cabin temperature.

[0043] Zone E (bottom): Bench support parameters and alarm list. A scrolling display shows all active alarm information (time, parameter, value, level).

[0044] In this embodiment, a computer device is provided, such as... Figure 7 As shown, it includes a memory 701, a processor 702, and a computer program stored in the memory and executable on the processor. When the processor executes the computer program, it implements the pre-warning alarm method for any of the above-mentioned test run state parameters.

[0045] Specifically, the computer device can be a computer terminal, a server, or a similar computing device.

[0046] In this embodiment, a computer-readable storage medium is provided, which stores a computer program that executes the pre-warning alarm method for any of the above-described test run state parameters.

[0047] Specifically, computer-readable storage media include both permanent and non-permanent, removable and non-removable media, which can store information using any method or technology. Information can be computer-readable instructions, data structures, modules of programs, or other data. Examples of computer-readable storage media include, but are not limited to, phase-change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other memory technologies, CD-ROM, digital versatile optical disc (DVD) or other optical storage, magnetic tape, magnetic disk storage or other magnetic storage devices, or any other non-transferable medium that can be used to store information accessible by a computing device. As defined herein, computer-readable storage media do not include transient media, such as modulated data signals and carrier waves.

[0048] Based on the same inventive concept, this invention also provides a pre-warning alarm device for test run status parameters, as described in the following embodiments. Since the principle of the pre-warning alarm device for test run status parameters is similar to that of the pre-warning alarm method for test run status parameters, the implementation of the pre-warning alarm device for test run status parameters can refer to the implementation of the pre-warning alarm method for test run status parameters, and repeated details will not be elaborated further. As used below, the terms "unit" or "module" can refer to a combination of software and / or hardware that implements a predetermined function. Although the device described in the following embodiments is preferably implemented in software, hardware implementation, or a combination of software and hardware, is also possible and contemplated.

[0049] Figure 8 This is a structural block diagram of a test run status parameter early warning device according to an embodiment of the present invention, such as... Figure 8 As shown, it includes: a monitoring system construction module 801, an alarm classification module 802, a static threshold alarm module 803, a combined condition alarm module 804, and an instantaneous value alarm module 805. The structure is described below.

[0050] The monitoring system construction module 801 is used to build a monitoring system for test run status parameters. The monitoring system collects test run status parameter data generated during the test run, wherein the test run status parameter data includes channel data, status data and parameter data. The alarm classification module 802 is used to classify warning alarms into static threshold alarms, combined condition alarms, and instantaneous value alarms according to the alarm conditions, alarm types, and alarm levels required during the test run. The static threshold alarm module 803 is used to select a single test state parameter to be monitored from the test state parameter data if the static threshold alarm is detected, and to generate warning information and / or alarm information when the test state parameter does not meet the warning threshold and / or alarm threshold. The combined condition alarm module 804 is used to select multiple sets of test state parameters that need to be alarmed from the test state parameter data if the combined condition alarm is to be triggered. When the combination of the multiple sets of test state parameters does not meet the set conditions, an alarm message is generated. The instantaneous value alarm module 805 is used to select the triggering status of the single test state parameter to be monitored from the test state parameter data if the instantaneous value alarm is triggered, and generate alarm information when the signal of the signal is triggered.

[0051] In one embodiment, the static threshold alarm module includes: The static threshold alarm classification unit is used to classify the alarm conditions of the test state parameters into single boundary condition alarms and double boundary condition alarms. A single-boundary alarm unit is used to set the warning value and alarm value of the single test state parameter when it is a single-boundary condition alarm. When the single test state parameter is greater than or less than the warning value, a warning message is generated. When the single test state parameter is greater than or less than the alarm value, an alarm message is generated. The dual-boundary alarm unit is used to set the normal range of the single test state parameter when the alarm is under dual-boundary conditions, and to generate alarm information when the single test state parameter is outside the normal range.

[0052] In one embodiment, the single-boundary alarm unit is further configured to set a first warning value and a first alarm value for engine vibration, monitor real-time engine vibration during test runs, and output a warning message when the real-time engine vibration exceeds the first warning value and an alarm message when the real-time engine vibration exceeds the first alarm value; set a second warning value and a second alarm value for high-pressure rotor speed, monitor real-time high-pressure rotor speed during test runs, and output a warning message when the real-time high-pressure rotor speed exceeds the second warning value and an alarm message when the real-time high-pressure rotor speed exceeds the second alarm value; and set a third warning value and a third alarm value for turbine after-temperature, and monitor real-time turbine after-temperature during test runs. When the real-time turbine after-temperature exceeds the third warning value, a warning message is output; when the real-time turbine after-temperature exceeds the third alarm value, an alarm message is output. A fourth warning value and a fourth alarm value are set for lubricating oil pressure. During the test run, the real-time lubricating oil pressure is monitored. When the real-time lubricating oil pressure is less than the fourth warning value, a warning message is output; when the real-time lubricating oil pressure is less than the fourth alarm value, an alarm message is output. A fifth warning value and a fifth alarm value are set for low-pressure rotor speed. During the test run, the real-time low-pressure rotor speed is monitored. When the real-time low-pressure rotor speed exceeds the fifth warning value, a warning message is output; when the real-time low-pressure rotor speed exceeds the fifth alarm value, an alarm message is output.

[0053] In one embodiment, the dual-boundary alarm unit is further configured to: set a normal lubricating oil inlet temperature range; monitor the lubricating oil inlet temperature during test runs; and output an alarm message when the lubricating oil inlet temperature is outside the normal lubricating oil temperature range; set a normal fuel flow rate range; monitor the fuel flow rate during test runs; and output an alarm message when the fuel flow rate is outside the normal flow rate range; and set a normal metal shavings content range; monitor the metal shavings content during test runs; and output an alarm message when the metal shavings content is outside the normal metal shavings content range.

[0054] In one embodiment, the combined condition alarm module includes: The first alarm unit is used to set the pressure comparison value boundary between the airborne fuel pressure and the test bench fuel pressure. When the comparison value is outside the comparison value boundary, an alarm message is output. The second alarm unit is used to set the generator frequency boundary and the generator load threshold. When the generator load is at the generator load threshold, the generator frequency is monitored during the test run. When the generator frequency is outside the generator frequency boundary, an alarm message is output. The third alarm unit is used to set the total vibration value boundary. When the total vibration value of the engine is greater than the total vibration value boundary and the rise rate of the first harmonic frequency component amplitude is greater than the rise rate threshold, an alarm message is output. The fourth alarm unit is used to set the temperature rise rate threshold and the flow rise rate threshold. When the exhaust temperature rise rate is greater than the temperature rise rate threshold, the fuel flow rate rise rate is greater than the flow rate rise rate threshold, and the rotor speed remains unchanged, an alarm message is output. The fifth alarm unit is used to output alarm information when the difference between the lubricating oil return temperature and the lubricating oil inlet temperature is greater than the difference threshold, and the rate of increase in lubricating oil consumption is greater than the rate of increase in oil consumption threshold. The sixth alarm unit is used to output alarm information when the fluctuation of the high-pressure compressor outlet pressure is greater than the fluctuation threshold and the engine oscillates at high frequency. The seventh alarm unit is used to output alarm information when the signal of the metal chip signal is triggered and the increase in the vibration energy of the bearing frequency is greater than the energy threshold.

[0055] In one embodiment, the instantaneous value alarm module includes: The instantaneous alarm unit is used to output alarm information when the signal of the signal device is triggered by low lubricating oil pressure and / or low fuel pressure and / or metal shavings and / or engine compartment oil leakage and / or control system failure and / or test bench emergency stop signal and / or vibration sensor failure.

[0056] In one embodiment, the above-mentioned device further includes an alarm display module.

[0057] In one embodiment, the alarm display module includes: The alarm display unit is used to display the warning information and / or alarm information in groups on the real-time monitoring screen through numbers, bar charts, and trend curves.

[0058] The embodiments of the present invention achieve the following technical effects: reducing the workload of personnel, ensuring that the monitoring of parameters during the test run is complete and improving the quality of the test run; utilizing network transmission and computer technology to transmit and analyze parameters during the engine test run in real time, realizing the function of local / remote real-time early warning and alarm for all test run parameters; forming a multi-level early warning and alarm system from simple to complex, which can effectively ensure the safety of the test run and provide first-hand information for fault diagnosis.

[0059] Obviously, those skilled in the art should understand that the modules or steps of the above-described embodiments of the present invention can be implemented using general-purpose computing devices. They can be centralized on a single computing device or distributed across a network of multiple computing devices. Optionally, they can be implemented using computer-executable program code, thereby storing them in a storage device for execution by a computing device. In some cases, the steps shown or described can be performed in a different order than those presented here, or they can be fabricated as separate integrated circuit modules, or multiple modules or steps can be fabricated as a single integrated circuit module. Thus, the embodiments of the present invention are not limited to any particular hardware and software combination.

[0060] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, various modifications and variations can be made to the embodiments of the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A method for early warning of test run status parameters, characterized in that, include: A monitoring system for test run status parameters is established, and test run status parameter data generated during the test run is collected through the monitoring system. The test run status parameter data includes channel data, status data, and parameter data. Based on the alarm conditions, alarm types and alarm levels required during the test run, the warning alarms are divided into static threshold alarms, combined condition alarms and instantaneous value alarms. If it is a static threshold alarm, select a single test state parameter to be monitored from the test state parameter data. When the test state parameter does not meet the warning threshold and / or alarm threshold, generate warning information and / or alarm information. If the alarm is a combination condition, select multiple sets of test state parameters that need to be alarmed from the test state parameter data. When the combination of the multiple sets of test state parameters does not meet the set conditions, generate alarm information. If the alarm is an instantaneous value, select the trigger status of the single test state parameter signal to be monitored from the test state parameter data. When the signal of the signal is triggered, generate alarm information.

2. The method for early warning and alarm of test run status parameters as described in claim 1, characterized in that, Select a single test run status parameter to be monitored from the test run status parameter data. When the test run status parameter does not meet the warning threshold and / or alarm threshold, generate warning information and / or alarm information, including: The alarm conditions of the test run status parameters are divided into single boundary condition alarms and double boundary condition alarms. If it is a single boundary condition alarm, set the warning value and alarm value of the single test state parameter. When the single test state parameter is greater than or less than the warning value, generate a warning message. When the single test state parameter is greater than or less than the alarm value, generate an alarm message. If it is a dual-boundary-condition alarm, a normal range is set for the single test state parameter. When the single test state parameter is outside the normal range, an alarm message is generated.

3. The method for early warning and alarm of test run status parameters as described in claim 2, characterized in that, Set warning and alarm values ​​for the single test run status parameter. When the single test run status parameter is greater than or less than the warning value, generate a warning message; when the single test run status parameter is greater than or less than the alarm value, generate an alarm message, including: Set a first warning value and a first alarm value for engine vibration, monitor real-time engine vibration during test drive, and output a warning message when the real-time engine vibration exceeds the first warning value and an alarm message when the real-time engine vibration exceeds the first alarm value. A second warning value and a second alarm value are set for the high-voltage rotor speed. The real-time high-voltage rotor speed is monitored during the test run. When the real-time high-voltage rotor speed is greater than the second warning value, a warning message is output. When the real-time high-voltage rotor speed is greater than the second alarm value, an alarm message is output. Set a third warning value and a third alarm value for the turbine exhaust temperature. Monitor the real-time turbine exhaust temperature during the test run. When the real-time turbine exhaust temperature exceeds the third warning value, output a warning message. When the real-time turbine exhaust temperature exceeds the third alarm value, output an alarm message. Set a fourth warning value and a fourth alarm value for lubricating oil pressure. Monitor the real-time lubricating oil pressure during the test run. When the real-time lubricating oil pressure is less than the fourth warning value, output a warning message. When the real-time lubricating oil pressure is less than the fourth alarm value, output an alarm message. A fifth warning value and a fifth alarm value are set for the low-pressure rotor speed. During the test run, the real-time low-pressure rotor speed is monitored. When the real-time low-pressure rotor speed is greater than the fifth warning value, a warning message is output. When the real-time low-pressure rotor speed is greater than the fifth alarm value, an alarm message is output.

4. The method for early warning and alarm of test run status parameters as described in claim 2, characterized in that, A normal range is defined for the single test run status parameter. When the single test run status parameter is outside the normal range, an alarm message is generated, including: Set the normal temperature range of the lubricating oil inlet temperature, monitor the lubricating oil inlet temperature during the test run, and output an alarm message when the lubricating oil inlet temperature is outside the normal temperature range. Set a normal flow range for fuel flow, monitor fuel flow during test runs, and output an alarm message when the fuel flow is outside the normal flow range; A normal range for metal scrap content is set, and the metal scrap content is monitored during the test run. When the metal scrap content is outside the normal range, an alarm message is output.

5. The method for early warning and alarm of test run status parameters as described in claim 1, characterized in that, Select multiple sets of test state parameters that require alarms from the test state parameter data. When the combination of the multiple sets of test state parameters does not meet the set conditions, generate alarm information, including: Set a pressure comparison value boundary between the airborne fuel pressure and the test bench fuel pressure. When the comparison value is outside the comparison value boundary, output an alarm message. Set generator frequency boundaries and generator load thresholds. When the generator load is at the generator load threshold, monitor the generator frequency during the test run. When the generator frequency is outside the generator frequency boundaries, output alarm information. Set a total vibration value boundary. When the total engine vibration value exceeds the total vibration value boundary and the rise rate of the first harmonic frequency component amplitude exceeds the rise rate threshold, an alarm message is output. Set a temperature rise rate threshold and a flow rate rise rate threshold. When the exhaust temperature rise rate is greater than the temperature rise rate threshold, the fuel flow rate rise rate is greater than the flow rate rise rate threshold, and the rotor speed remains unchanged, an alarm message is output. When the difference between the lubricating oil return temperature and the lubricating oil inlet temperature is greater than the difference threshold, and the rate of increase in lubricating oil consumption is greater than the rate of increase in lubricating oil consumption threshold, an alarm message is output. When the fluctuation of the high-pressure compressor outlet pressure exceeds the fluctuation threshold and the engine exhibits high-frequency oscillation, an alarm message is output. When the signal device for the metal chip signal is triggered, and the increase in the vibration energy of the bearing frequency exceeds the energy threshold, an alarm message is output.

6. The method for early warning and alarm of test run status parameters as described in claim 1, characterized in that, The system selects the trigger status of a single test status parameter to be monitored from the test status parameter data. When the signal of the trigger is activated, an alarm message is generated, including: An alarm message is output when the signal of the low lubricating oil pressure and / or low fuel pressure and / or metal shavings and / or engine compartment oil leakage and / or control system failure and / or test bench emergency stop signal and / or vibration sensor failure is triggered.

7. The method for early warning and alarm of test run status parameters as described in any one of claims 1 to 6, characterized in that, Also includes: On the real-time monitoring screen, the warning information and / or alarm information are displayed in groups using numbers, bar charts, and trend curves.

8. A pre-warning alarm device for test run status parameters, characterized in that, include: The monitoring system construction module is used to build a monitoring system for test run status parameters. The monitoring system collects test run status parameter data generated during the test run, wherein the test run status parameter data includes channel data, status data and parameter data. The alarm classification module is used to classify warning alarms into static threshold alarms, combined condition alarms, and instantaneous value alarms according to the alarm conditions, alarm types, and alarm levels required during the test run. The static threshold alarm module is used to select a single test state parameter to be monitored from the test state parameter data if the static threshold alarm is detected, and to generate warning information and / or alarm information when the test state parameter does not meet the warning threshold and / or alarm threshold. The combined condition alarm module is used to select multiple sets of test state parameters that need to be alarmed from the test state parameter data if the combined condition alarm is to be triggered. When the combination of the multiple sets of test state parameters does not meet the set conditions, an alarm message is generated. The instantaneous value alarm module is used to select the triggering status of the single test state parameter signal to be monitored from the test state parameter data if the instantaneous value alarm is triggered, and generate alarm information when the signal of the signal is triggered.

9. A computer device, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that, When the processor executes the computer program, it implements the pre-warning alarm method for the test run status parameters as described in any one of claims 1 to 7.

10. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores a computer program for executing a pre-warning alarm method for test run status parameters according to any one of claims 1 to 7.

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