Airplane environment control ground simulation test equipment comprehensive control system based on looped network
By adopting a comprehensive control system based on the ring network in the aircraft environmental control system test, unified control and remote monitoring test equipment was solved, and the problems of large manpower burden, difficulty in collaborative control, low efficiency and inadequate status monitoring were achieved in the test, and efficient and accurate automatic simulation functions were achieved.
Patent Information
- Application Number
- CN202411705820.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-26
- Publication Date
- 2025-03-07
AI Technical Summary
In the test of the aircraft environmental control system, the manpower burden is high, the coordinated control of the test equipment is difficult, the test efficiency is low, and the status monitoring of the test equipment is not in place.
The integrated control system of aircraft environmental control ground simulation test equipment based on the ring network is adopted. By setting up PXI measurement and control system and KVM equipment at the test site, PLC base stations and video surveillance systems are set up at each test equipment site to form a ring network to realize unified control and remote monitoring of test equipment.
It realizes high-reliability and high-precision automatic simulation functions, reduces the burden of manpower, improves the test efficiency, and solves the problem of inadequate monitoring of the test equipment status.
Smart Images
Figure CN119575835A_ABST
Abstract
Description
Technical Field
[0001] The present application belongs to the technical field of aircraft environmental control system testing, and specifically relates to an integrated control system for aircraft environmental control ground simulation test equipment based on a ring network. Background Art
[0002] The environmental control system is an important component of the aircraft. Its main function is to provide a suitable temperature and pressure environment for the personnel and equipment in the aircraft, and to meet the environment required for the normal operation of personnel and electronic equipment.
[0003] In practice, ground simulation tests are usually used to verify the functions and performance of the aircraft environmental control system. In order to truly simulate the internal and external conditions of the aircraft during flight through ground tests, the ground simulation test of the environmental control system simulates conditions such as pressure and temperature, and has the characteristics of vacuum, high and low temperature, and thermal load. It has a variety of test equipment control objects such as vacuum system, high and low temperature system, engine bleed air simulation system, ram air simulation system, fuel simulation system, radiation system, power load system, humidity simulation system, etc. The vacuum units and air supply systems involved are mostly large-scale equipment, and there are many state monitoring and equipment operation sites involved in the test.
[0004] At present, in the test of aircraft environmental control system, in addition to the test equipment that directly affects the system status, multiple test equipment sites are set up at the test site to arrange the corresponding test equipment to realize basic functions such as air supply, water supply, power supply, vacuum pumping, refrigeration, and heating. During the test, the test personnel need to be spread across the test site and its various test equipment sites. The test personnel are required to run back and forth between multiple sites for operation and control, which puts a heavy manpower burden on them. In addition, each major equipment operates independently and its operating status cannot be monitored in time. Once an emergency condition occurs, it is difficult for the test personnel to rush to various sites at the same time to handle the operation. In addition, there are multiple combined working conditions in the test tasks, which require high coordinated control of the test equipment and make the test control difficult.
[0005] This application is proposed in view of the above-mentioned technical defects. Summary of the invention
[0006] The purpose of the present application is to provide an integrated control system for aircraft environmental control ground simulation test equipment based on a ring network, so as to overcome or alleviate at least one aspect of the known technical defects.
[0007] The technical solution of this application is:
[0008] An integrated control system for aircraft environmental control ground simulation test equipment based on a ring network, including a PXI measurement and control system and its switch set up at the test site, a PLC base station, a video monitoring system and its switch set up at each test equipment site;
[0009] The PXI measurement and control system set up at the test site is connected to the switch to directly drive the test equipment set up at the test site;
[0010] The PLC base stations installed in each test equipment site directly control and manage the actuators in the test equipment site. The video monitoring system is used to monitor the test equipment site. The switch is interconnected with the PLC base station, the video monitoring system and the test equipment with integrated intelligent modules in the test equipment site.
[0011] The switches installed in each test equipment site are connected in a ring, and are connected to the switches installed at the test site to form a ring network. The PXI measurement and control system sends the control instructions of the master control system through the switch to coordinate the operation of different test equipment.
[0012] According to at least one embodiment of the present application, the above-mentioned integrated control system of the aircraft environmental control ground simulation test equipment based on the ring network further includes a KVM device set up at the test site and a display device set up in each measurement and control room;
[0013] The KVM test equipment set up at the test site is connected to the switch, PXI measurement and control system, and the display devices set up in each measurement and control room. It can summarize the video control signals, test equipment status parameters, and operation control instructions, and then display the measurement and control digital information on each display device.
[0014] According to at least one embodiment of the present application, in the above-mentioned ring network-based aircraft environmental control ground simulation test equipment integrated control system, the measurement and control room is divided into a full-aircraft integrated test control room, an environmental control test control room, and a flow distribution test control room.
[0015] According to at least one embodiment of the present application, in the above-mentioned ring network-based aircraft environmental control ground simulation test equipment integrated control system, a vacuum air supply control system, a radiation load system, an electronic equipment thermal load system, an airborne equipment control excitation system, and an air bleed adjustment servo control system are set up at the test site.
[0016] According to at least one embodiment of the present application, in the above-mentioned ring network-based aircraft environmental control ground simulation test equipment integrated control system, the test equipment site includes a hot air test equipment site, a power equipment site, and an environmental chamber equipment site.
[0017] According to at least one embodiment of the present application, in the above-mentioned ring network-based aircraft environmental control ground simulation test equipment integrated control system, the test equipment installed in the hot air test equipment site includes a medium-pressure air supply heating system, a low-pressure air supply heating system, and an air source dehumidification system, and the actuator includes a medium-pressure air supply regulating valve, a low-pressure air supply regulating valve, an air source solenoid valve, and an emergency air release valve.
[0018] According to at least one embodiment of the present application, in the above-mentioned ring network-based aircraft environmental control ground simulation test equipment integrated control system, the test equipment installed in the power equipment site includes a liquid cooling test system and a refrigeration system, and the actuators include a water ring pump unit, a screw pump unit, a water supply solenoid valve, and a vacuum solenoid valve.
[0019] According to at least one embodiment of the present application, in the above-mentioned ring network-based aircraft environmental control ground simulation test equipment integrated control system, the test equipment installed in the environmental chamber equipment site includes a mobile heating system, a fuel heat sink simulation test system, a turbine refrigeration system, an ambient temperature simulation system, and a humidity simulation system, and the actuator includes a ground simulation power supply and a fuel supply regulating valve.
[0020] This application has at least the following beneficial technical effects:
[0021] The invention provides an integrated control system for aircraft environmental control ground simulation test equipment based on a ring network, which can uniformly control and manage the participating test equipment, realize high-reliability and high-precision automatic simulation functions according to the flight profile, and realize remote monitoring and control of the test equipment while retaining the local operation function of the test equipment. It can well solve the problems of large manpower demand in environmental control tests, poor coordinated control of test equipment, low test efficiency, and inadequate monitoring of test equipment status. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] Figure 1 It is a schematic diagram of an integrated control system of an aircraft environmental control ground simulation test equipment based on a ring network provided in an embodiment of the present application;
[0023] Figure 2 It is a specific example schematic diagram of the integrated control system of the aircraft environmental control ground simulation test equipment based on the ring network provided in the embodiment of the present application.
[0024] In order to better illustrate the present embodiment, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product. In addition, the drawings are only used for illustrative purposes and should not be construed as limitations on the present application. DETAILED DESCRIPTION
[0025] In order to make the technical solution and advantages of the present application clearer, the technical solution of the present application will be described in further detail in detail and in detail with reference to the accompanying drawings. It can be understood that the specific embodiments described here are only partial embodiments of the present application, which are only used to explain the present application, not to limit the present application. It should be noted that, for the convenience of description, only the parts related to the present application are shown in the accompanying drawings, and other related parts can refer to the general design.
[0026] In addition, unless otherwise defined, the technical terms or scientific terms used in the description of this application shall have the usual meanings understood by those of ordinary skill in the art to which this application belongs. The words used in the description of this application to indicate orientation are only used to indicate relative directions or positional relationships. When the absolute position of the described object changes, its relative positional relationship may also change accordingly. The word "include" used in the description of this application indicates that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, but does not exclude other elements or objects.
[0027] In addition, it should be noted that, unless otherwise clearly specified and limited, the words "installation", "connection" and similar terms used in the description of this application should be understood in a broad sense. For example, the connection can be a fixed connection or a detachable connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. Technical personnel in the field can understand its specific meaning in this application according to the specific circumstances.
[0028] An integrated control system for aircraft environmental control ground simulation test equipment based on a ring network, such as Figure 1 As shown, it includes the PXI measurement and control system, KVM equipment and its switch set up at the test site, the PLC base station, video monitoring system and its switch set up in each test equipment site, and the display equipment set up in each measurement and control room.
[0029] The PXI measurement and control system is the master control system of the entire control system and is arranged in the form of a measurement and control cabinet at the test site. The test equipment a.1 to an arranged at the test site directly affect the state of the system under test and are directly driven by the PXI measurement and control system. They can perform complex test tasks, achieve a high control response rate, and have high execution accuracy and agility. The PXI measurement and control system set up at the test site is connected to the switch.
[0030] Each test equipment site is located between the power equipment at the test site, realizing basic functions such as gas supply, water supply, power supply, vacuuming, refrigeration, heating, etc. According to the distribution of the physical location of each test equipment, the test equipment arranged outside the test site can be divided into several concentrated areas, namely test equipment site 1 to test equipment site n.
[0031] The PLC base stations, PLC base stations 1 to PLC base stations n, set up in each test equipment site are bottom-level control units with simple architecture and good economy. The bottom-level regional control systems formed for the test equipment sites 1 to test equipment sites n have the same system architecture.
[0032] The PLC base station installed in each test equipment site directly controls and manages the actuators in the test equipment site. The video surveillance system is used to monitor the test equipment site. The switch is cross-linked with the PLC base station, the video surveillance system and the test equipment with integrated intelligent modules in the test equipment site, serving as an information exchange hub within the test equipment site, realizing functions such as receiving control instructions, uploading the operating status of test equipment, and uploading video surveillance signals.
[0033] Taking the scenario of test equipment site n as an example, PCL base station n is the control unit, which directly controls and manages actuator n.1 to actuator nn. Test equipment n.1 to test equipment nn, which have integrated intelligent modules, are equipped with a unified RJ45 interface to integrate information through Ethernet. The electrical interfaces of each monitoring probe of video surveillance system n are unified in the POE form compatible with the RJ45 interface. Switch n with POE mode is cross-linked with PCL base station n, video surveillance system n, and test equipment n.1 to test equipment nn, serving as the information exchange hub within test equipment site n, realizing functions such as receiving control instructions, uploading the operating status of test equipment, and uploading video surveillance signals.
[0034] The switches installed in each test equipment site are connected in a ring, and are connected to the switches installed at the test site to form a ring network. The PXI measurement and control system sends the control instructions of the master control system through the switch to coordinate the operation of different test equipment.
[0035] Industrial Ethernet is established between test equipment site 1 and test equipment site n, and between test equipment site 1 and test equipment site n and the test site, so that information networks are established between relatively independent test equipment sites and test sites, forming a PROFINET redundant ring network structure. In the test operation site with complex environmental factors, when a network fails, the PROFINET redundant ring network structure can still ensure the smooth flow of the control information network and improve the fault tolerance of the system. Based on the PROFINET redundant ring network structure, the test equipment status information is summarized and organized to form a digital report of the test equipment status, making the test equipment status transparent and facilitating the optimization of test equipment management and maintenance upgrades.
[0036] The measurement and control room is the control room for the test. The KVM test equipment installed at the test site is the medium for human-computer interaction. It is connected to the switch, PXI measurement and control system, and the display devices installed in each measurement and control room. It can summarize the video control signals, test equipment status parameters, operation control instructions, etc. After the personnel select the information according to the test content, the measurement and control digital information can be displayed on each display device. Between measurement and control room 1 and measurement and control room n, the physical location restrictions can be reduced, and the test equipment can be controlled and managed at multiple points at any time, which is convenient for the operation control of the test equipment, reduces the burden of manual operation, and improves the test efficiency.
[0037] The ring network-based integrated control system for aircraft environmental control ground simulation test equipment disclosed in the above embodiment adopts the NIPXI platform for top-level architecture design and the PLC distributed platform design for the bottom layer to realize the control and status monitoring of the ground simulation test equipment of the environmental control system. The system adopts the profinet redundant ring network and Ethernet as the communication medium, which can improve the fault tolerance of the system and facilitate the unified interface, which is conducive to the supplementary upgrade of the control of the newly added test equipment in the subsequent test environment, and has the advantages of complete functions, high transmission rate, strong anti-interference ability, and easy use.
[0038] The ring network-based integrated control system for aircraft environmental control ground simulation test equipment disclosed in the above-mentioned embodiment can uniformly control and manage the participating test equipment, and can realize high-reliability and high-precision automatic simulation functions according to the flight profile. While retaining the local operation function of the test equipment, it can realize remote monitoring and control of the test equipment, and can effectively solve the problems of large manpower demand in environmental control tests, poor coordinated control of test equipment, low test efficiency, and inadequate monitoring of test equipment status.
[0039] The ring network-based integrated control system for aircraft environmental control ground simulation test equipment disclosed in the above embodiment has the following significant advantages:
[0040] The master control system and bottom control unit mode are adopted to realize the top-down control closed loop and successfully achieve remote control of the test equipment;
[0041] The multi-point distributed PLC base station used replaces the PXI bus control system to directly control the execution components, reducing the hardware cost of the control system;
[0042] The master control system can perform status calculation and issue instructions to solve the problem of large manual operation and difficult coordinated operation of multiple test equipment, thus improving test efficiency;
[0043] The ring network architecture adopted can solve the problem of control loop failure in destructive tests such as harsh test site environment and network failure, and improve the reliability and fault tolerance of the control system.
[0044] The master control system is combined with the KVM display stations arranged at multiple locations, which improves the reusability of the test equipment control system.
[0045] A unified network interface is set up to facilitate the access of new test equipment, with good openness and practicality;
[0046] The operating status of test equipment such as video images and index parameters can be digitally converted and stored, making the status of the test equipment transparent and facilitating the optimization of test equipment management and maintenance;
[0047] It can realize real-time remote monitoring and control, has high control accuracy, is safe and reliable, and is easy to operate. It is suitable for general industrial control sites and has good versatility.
[0048] In a specific aircraft environmental control system ground simulation test, the aircraft environmental control ground simulation test equipment integrated control system based on the ring network disclosed in the above embodiment is used to control the test equipment, such as Figure 2 shown.
[0049] The test site is equipped with a vacuum air supply control system, a radiation load system, an electronic equipment thermal load system, an airborne equipment control excitation system, and an air bleed adjustment servo control system.
[0050] The test equipment site includes hot air test equipment site, power equipment site, and environmental chamber equipment site.
[0051] The test equipment installed in the hot gas test equipment site includes a medium-pressure gas supply heating system, a low-pressure gas supply heating system, and an air source dehumidification system. The actuators include a medium-pressure gas supply regulating valve, a low-pressure gas supply regulating valve, an air source solenoid valve, and an emergency air release valve.
[0052] The test equipment installed in the power equipment site includes a liquid cooling test system and a refrigeration system. The actuators include a water ring pump unit, a screw pump unit, a water supply solenoid valve, and a vacuum solenoid valve.
[0053] The test equipment installed in the environmental chamber equipment site includes a mobile heating system, a fuel heat sink simulation test system, a turbine refrigeration system, an ambient temperature simulation system, and a humidity simulation system. The actuators include a ground simulation power supply and an oil supply regulating valve.
[0054] The control objects designed in the experiment and their quantity, purpose and distribution location are shown in the following table:
[0055] The measurement and control room is divided into the whole machine comprehensive test control room, environmental control test control room, and flow distribution test control room.
[0056] The PXI measurement and control system 1 near the test site, as the master control system, directly drives the control object or communicates with the test equipment to achieve closed-loop control, and executes key parameters such as the bleed air pressure and ambient pressure of the test system that directly affect the test system. The peripheral auxiliary equipment is controlled by the PXI measurement and control system 1, which calculates and analyzes the control profile in real time according to the test task, and transmits the execution command to the test equipment in different equipment sites through the ring network system composed of switch 2, switch 9, switch 19, and switch 28, so as to achieve the purpose of coordinated control.
[0057] Before the test, it can be determined whether the liquid cooling test system 22 is needed based on the test working conditions. When low temperature is required, the refrigeration system 23 can be turned on to store cold for the liquid cooling test system 22 to ensure the low temperature state of the simulated liquid cooling circuit.
[0058] During the test preparation phase, the PCL base station 29 controls the ground simulation power supply 36 to start up, power on the airborne system, and simultaneously runs the airborne equipment control excitation system 7 to put the airborne system in a normal working state.
[0059] After the airborne equipment control and excitation system 7 checks that the airborne system is in normal condition, the PLC base station 10 opens the gas source solenoid valve 13, connects to the compressed air, and then opens the medium-pressure gas supply regulating valve 11 and the low-pressure gas supply regulating valve 12 to adjust the gas supply flow. After the gas supply flow meets the usage requirements, the medium-pressure gas supply heating system 15 and the low-pressure gas supply heating system 16 are controlled to preheat the air temperature.
[0060] At the environmental chamber equipment site, the mobile heating system 31 is controlled to compensate and adjust the air temperature to make up for the temperature loss of the air after long-distance transportation. It takes a certain amount of time to heat the air temperature. When the air supply temperature reaches the control target, the formal test begins.
[0061] During the test, the PXI measurement and control system 1 decomposes the control instructions according to the test task requirements, opens the water supply solenoid valve 27, and ensures the supply of circulating water to the power equipment. Start the water ring pump unit 24 or the screw pump unit 25. When the unit is operating normally, open the vacuum solenoid valve 27 to connect the vacuum source to the test environment. The PXI measurement and control system 1 uses the equipment combination of the water ring pump unit 24 and the screw pump unit 25 according to the target range of the environmental pressure and the current status of the equipment, and cooperates with the vacuum air supply control system 4 to simulate the working environment pressure required by the environmental control system. At the same time, according to the atmospheric standard parameters, the environmental temperature simulation system 34 is started to comprehensively realize the environmental temperature simulation required by the environmental control system.
[0062] When humidification is required in the test state, the air source dehumidification system 17 is turned on to ensure that the air source supply is in a dry state. At the same time, in the environmental chamber equipment site, the humidity simulation system 35 is controlled to simulate the moisture content state in the bleed air of the environmental control system.
[0063] When the test state requires a change in the heat dissipation link, the cooling and heating states of the ram air are adjusted respectively through the turbine refrigeration system 33 and the low-pressure air supply heating system 16, and the flow rate of the ram air is controlled in cooperation with the low-pressure air supply regulating valve 12 to achieve heat exchange simulation at the ram air end. The flow rate and temperature of the simulated fuel end are adjusted respectively through the fuel supply regulating valve 37 and the fuel heat sink simulation system 32 to achieve heat exchange simulation at the fuel end.
[0064] Video monitoring system 18, video monitoring system 21 and video monitoring system 30 constitute a video monitoring network, which respectively realizes real-time image monitoring of the hot gas test equipment site, power equipment site and environmental chamber equipment site, and can be used by test personnel to remotely monitor the on-site conditions of each equipment site.
[0065] The control and operation parameter interface of the test equipment can be displayed in different control rooms through KVM device 3. According to the type of test equipment and the content of control parameters, the display device can be divided into 6 display interfaces, namely display interfaces 1 to 6. The 6 display interfaces can be displayed in different locations such as the comprehensive test control room of the whole machine, the environmental control test control room, and the flow distribution test control room, so that the test personnel can call and control the test equipment at any time to meet different test use requirements.
[0066] The effective application of the integrated control system of the aircraft environmental control ground simulation test equipment disclosed in the above embodiment enables the test commissioning and test control of the aircraft environmental control system ground simulation test before the first flight to be completed within 2 months, which is at least 1 month earlier than the previous test commissioning and test cycle. In the process of the test work, it effectively alleviates the phenomenon of insufficient human resources and heavy burden on test personnel, solves the problems of poor collaborative control of test equipment, low test efficiency, and inadequate monitoring of test equipment status, strengthens the use and management of test equipment, reduces the burden of manpower, and improves test efficiency, which can effectively adapt to the increasingly tense test tasks and highly overlapping models.
[0067] So far, the technical solution of the present application has been described in conjunction with the preferred embodiments shown in the accompanying drawings. Those skilled in the art should understand that the scope of protection of the present application is obviously not limited to these specific embodiments. Without departing from the principles of the present application, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the scope of protection of the present application.
Claims
1. An integrated control system for aircraft environmental control ground simulation test equipment based on a ring network, characterized in that: Including the PXI measurement and control system and its switch installed at the test site, the PLC base station, video monitoring system and its switch installed at each test equipment site; The PXI measurement and control system set up at the test site is connected to the switch to directly drive the test equipment set up at the test site; The PLC base stations installed in each test equipment site directly control and manage the actuators in the test equipment site. The video monitoring system is used to monitor the test equipment site. The switch is interconnected with the PLC base station, the video monitoring system and the test equipment with integrated intelligent modules in the test equipment site. The switches installed in each test equipment site are connected in a ring, and are connected to the switches installed at the test site to form a ring network. The PXI measurement and control system sends the control instructions of the master control system through the switch to coordinate the operation of different test equipment.
2. The ring network-based aircraft environmental control ground simulation test equipment integrated control system according to claim 1 is characterized in that: It also includes KVM equipment installed at the test site and display equipment installed in each measurement and control room; The KVM test equipment set up at the test site is connected to the switch, PXI measurement and control system, and the display devices set up in each measurement and control room. It can summarize the video control signals, test equipment status parameters, and operation control instructions, and then display the measurement and control digital information on each display device.
3. The ring network-based integrated control system for aircraft environmental control ground simulation test equipment according to claim 1 is characterized in that: The measurement and control room is divided into the whole machine comprehensive test control room, environmental control test control room, and flow distribution test control room.
4. The integrated control system for aircraft environmental control ground simulation test equipment based on ring network according to claim 1 is characterized in that: The test site is equipped with a vacuum air supply control system, a radiation load system, an electronic equipment thermal load system, an airborne equipment control excitation system, and an air bleed adjustment servo control system.
5. The integrated control system for aircraft environmental control ground simulation test equipment based on ring network according to claim 1 is characterized in that: The test equipment site includes hot air test equipment site, power equipment site, and environmental chamber equipment site.
6. The ring network-based integrated control system for aircraft environmental control ground simulation test equipment according to claim 5 is characterized in that: The test equipment installed in the hot gas test equipment site includes a medium-pressure gas supply heating system, a low-pressure gas supply heating system, and an air source dehumidification system. The actuators include a medium-pressure gas supply regulating valve, a low-pressure gas supply regulating valve, an air source solenoid valve, and an emergency air release valve.
7. The integrated control system for aircraft environmental control ground simulation test equipment based on ring network according to claim 5 is characterized in that: The test equipment installed in the power equipment site includes a liquid cooling test system and a refrigeration system. The actuators include a water ring pump unit, a screw pump unit, a water supply solenoid valve, and a vacuum solenoid valve.
8. The ring network-based integrated control system for aircraft environmental control ground simulation test equipment according to claim 5 is characterized in that: The test equipment installed in the environmental chamber equipment site includes a mobile heating system, a fuel heat sink simulation test system, a turbine refrigeration system, an ambient temperature simulation system, and a humidity simulation system. The actuators include a ground simulation power supply and an oil supply regulating valve.