Portable aircraft ejection seat ground automatic inspection equipment

Abstract

The invention relates to the technical field of aircraft ejection seat ground testing, in particular to a portable aircraft ejection seat ground automatic inspection device, which comprises a host, an automatic inspection device, an automatic inspection device and an automatic inspection device, the auxiliary machine schedules different threads to process and display data according to data types, the inspection equipment assembly is used for achieving automatic inspection of the main machine and the auxiliary machine, efficient cooperation between the main machine and the auxiliary machine is achieved based on WIFI, rapid joint debugging and joint testing between the machine and the ground are achieved, the automation and informatization level of the whole testing process is improved, and the testing efficiency is improved. And the universality is high, and the testing and repairing efficiency of the product aircraft ejection seat is greatly improved.

Description

Technical Field

[0001] The invention relates to the technical field of ground testing of aircraft ejection seats, in particular to portable ground automatic inspection equipment for aircraft ejection seats. Background Art

[0002] As an important means of aviation life-saving, ejection life-saving ensures that flight personnel can safely escape from the crashed aircraft. The so-called ejection life-saving refers to a life-saving method in which the pilot relies on the ejection life-saving system to eject from the aircraft in an emergency, and then lands safely using a parachute. Since its advent, the ejection seat has gone through four stages of development, and its development process is as follows: (1) The first generation of ejection seats is the ballistic ejection seat. From the 1940s to the 1950s, the ejection tube was mainly used as the ejection power source to solve the problem of pilots leaving the aircraft in an emergency; (2) The second generation of ejection seats is the rocket ejection seat. From the 1950s to the 1960s, it added a second-stage power source rocket booster device on the basis of the first generation of ejection seats, with the aim of ensuring that pilots can safely eject from the distressed aircraft under low altitude and low speed conditions; (3) The third generation of ejection seats is a multi-state program-controlled rocket ejection seat. From the 1960s to today, the main problem of safety and life-saving in adverse postures such as inverted flight and dive is solved; (4) The fourth generation of ejection seats is the adaptive ejection seat, which mainly uses adaptive control technology, thrust control technology, high-speed stability technology and high-speed airflow protection technology to make the seat have the characteristics of digital control and intelligent aircraft, so as to further expand the ejection life-saving envelope and improve the success rate of rescue in adverse posture conditions.

[0003] As a key component for ejection and life-saving, the aircraft ejection seat is a necessary condition for ensuring the pilot's safe exit from the aircraft and the first checkpoint to ensure the pilot's personal safety. Its inspection and maintenance play a vital role in ensuring the safety of the pilot. However, at present, the inspection and maintenance of aircraft ejection seats mainly adopts manual inspection, which has the following shortcomings:

[0004] 1. The existing ejection seat test and inspection equipment has a single test object and can only test a certain type of ejection seat. It is difficult to meet the inspection requirements of testing ejection seats of multiple models with one inspection equipment, and the versatility is poor;

[0005] 2. Existing ejection seat test and inspection equipment adopts pure manual testing, which has a large workload, unstable test results, test errors, etc., and a low degree of automation;

[0006] 3. Existing ejection seat test and inspection equipment cannot automatically save test results, automatically upload data, and query data. Specifically, the test results are saved by visually observing various indicator lights and recording manually, and there is no data upload interface, so data query cannot be realized.

[0007] At present, the research on aircraft ejection seats is mainly focused on system structure optimization, simulation research, control algorithm research, etc., and the research on automatic testing of aircraft ejection seats has been neglected. In view of the current situation that various types of ejection seat testing and inspection equipment have poor versatility, low degree of automation, and lack of information functions, which cause great inconvenience to the staff, in order to improve the test efficiency of aircraft ejection seat ground testing, it is urgent to carry out technical invention research on aircraft ejection seat ground testing. Summary of the invention

[0008] In order to solve the above problems, the present invention provides a portable aircraft ejection seat ground automatic inspection device.

[0009] A portable ground automatic inspection device for an aircraft ejection seat includes a host, a secondary machine responsible for receiving data sent by the host, scheduling different threads to process and display data according to the data type, and an inspection device component for realizing automatic inspection of the host and the secondary machine, specifically:

[0010] The host includes a seat to be tested, an industrial host, a programmable multimeter, an agent control unit, a dual-display voltage and current meter, various industrial power modules and a device interface module;

[0011] The secondary machine is a tablet computer 1;

[0012] The inspection equipment assembly includes an all-in-one machine and a tablet computer 2;

[0013] The industrial host is a controller.

[0014] The integrated machine is provided with an RS232 serial interface, a USB interface and a VGA interface, and the integrated machine communicates with the proxy control unit via the serial port.

[0015] The beneficial effects of the present invention are: based on WIFI, efficient coordination between the main machine and the auxiliary machine is realized, rapid joint debugging and testing on the aircraft and on the ground is realized, the automation and information level of the entire test process is improved, the versatility is strong, and the efficiency of product aircraft ejection seat testing and repair is greatly improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0017] Figure 1 It is a block diagram of the internal structure of the proxy control unit of the present invention;

[0018] Figure 2 It is a schematic diagram of the hardware composition of the portable ground seat inspection device of the present invention;

[0019] Figure 3 This is a schematic diagram of the testing architecture of the inspection equipment based on WIFI communication of the present invention;

[0020] Figure 4 It is a schematic diagram of the software composition of the portable ground seat inspection device of the present invention;

[0021] Figure 5 It is the internal principle diagram of the host of the present invention;

[0022] Figure 6 This is a single seat test connection diagram of the present invention;

[0023] Figure 7 It is a double seat test connection diagram of the present invention. DETAILED DESCRIPTION

[0024] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below.

[0025] like Figures 1 to 7 As shown, a portable aircraft ejection seat ground automatic inspection device includes a host, a secondary machine responsible for receiving data sent by the host, scheduling different threads to process and display data according to the data type, and an inspection device component for realizing automatic inspection of the host and the secondary machine, specifically:

[0026] The host includes a seat to be tested, an industrial host, a programmable multimeter, model U2741A, and an agent control unit. The internal structure diagram is as follows: Figure 1 As shown, dual display voltage and current meter, various industrial power supply modules and device interface modules;

[0027] The secondary machine is a tablet computer 1;

[0028] The inspection equipment assembly includes an all-in-one machine and a tablet computer 2;

[0029] The industrial host is a controller, and the portable ground seat inspection equipment realizes injection measurement: signal injection and test output can be conveniently performed through the equipment test interface; data transmission and inspection between the host and the auxiliary machine are realized through WIFI; the on and off of the channel are controlled by the agent control unit to realize automatic test operation; for the convenience of operation, all instruments are controlled through the bus. At the same time, the inspection equipment adopts a movable series reinforced packaging structure to facilitate transportation and prevent collision.

[0030] The proxy control unit is a control board, which specifically includes an FPGA minimum system, a power supply circuit, a bus interface circuit and a relay array.

[0031] Based on WIFI, efficient coordination between the main machine and the auxiliary machine is realized, and rapid joint debugging and testing on the aircraft and on the ground are realized, which improves the automation and information level of the entire testing process. It has strong versatility and greatly improves the efficiency of product aircraft ejection seat testing and repair.

[0032] The integrated machine is provided with an RS232 serial interface, a USB interface and a VGA interface. The integrated machine communicates with the agent control unit through the serial port to complete the switching between the test channel and the power-on channel.

[0033] The integrated machine is connected to the programmable multimeter via a USB interface to complete voltage testing and resistance testing, and returns data to the industrial host.

[0034] like Figure 1 As shown, this inspection equipment adopts a two-level control method, in which the first level is the industrial host control based on the serial bus, and the second level is the FPGA control based on the IO bus, in which the second level realizes the on-off control of the relay array based on the parsed serial port instructions. In the figure, the 5V electricity generated by the AC220V through the 220V to 5V power supply module directly powers the FPGA through the 5V to 3.3V chip power supply module; the DC 27V generated by the AC220V through the 220V to 27V power supply module is connected to the normally open contact end of the relay in the relay array; the HI and LO terminals of the multimeter are connected to the normally open contact end of the relay in the relay array; the I / O terminal of the FPGA generates a 5V signal through the 3.3V to 5V level conversion chip and is connected to one end of the coil of the relay in the relay array through the IO drive circuit (UN2803), and the other end of the coil is connected to 5V; the industrial host realizes the control of the FPGA through the RS232 serial port.

[0035] like Figure 2 As shown, the hardware of this inspection equipment is specifically composed of a flat cable, a portable instrument, an agent control unit, etc., wherein the industrial host has RS232, WIFI, and USB communication interfaces, and is equipped with VISA resources, and communicates with the tablet computer through the WIFI communication interface; the portable instrument is composed of a digital multimeter, a dual-display voltage and current meter, an interface module, a 5V industrial power supply, and a 27V industrial power supply; the interface module is specifically divided into various DB interfaces associated with the agent control unit, and various aviation connectors associated with aircraft seats and cockpits; the agent control unit module is responsible for decoding, control, driving, and line switching functions, and has an RS232 interface, a +27V input / output interface, a WGND input interface, and various measurement and control instrument interfaces.

[0036] The all-in-one machine is connected to the display of the industrial host via a VGA cable, and WIFI is used between the all-in-one machine and the tablet computer 2 to exchange data and confirm test items, ensuring that the test is carried out in an orderly manner.

[0037] The industrial host, tablet computer 1 and tablet computer 2 are all provided with an application layer, an interface layer and a task layer for completing the initialization of hardware resources, data collection and analysis of the entire test process, such as Figure 4 As shown in the figure, the host test software of the inspection equipment is an important part of the software platform, providing the operator with a human-machine interface and management functions for the entire test. The host test software of the inspection equipment transmits commands to the proxy control unit and portable instruments through the interface module, coordinates the scheduling of each test component, and thus performs the test according to the designed test logic; at the same time, the test software divides the test task into multiple subtask modules, which constrain and restrict each other. The host issues commands, collects and processes data in its own subtask module, and sends the results to the slave machine to realize synchronous display of data; the subtask module on the slave machine is responsible for receiving the data sent by the host, and scheduling different threads for data processing and display according to the data type.

[0038] like Figure 5 As shown, the host of this inspection equipment is specifically composed of an industrial host, a bus interface circuit, a relay array, a power supply input / output, etc., wherein a 220→27V power module is connected to the proxy control unit through a relay to supply power to the seat; a 220→5V power module is connected to the proxy control unit through a relay to supply power to the FPGA therein; a 220→12V power module is responsible for supplying power to the industrial host and the multimeter, wherein the 4 terminals of the multimeter are connected to the proxy control unit; an ammeter is connected in series to the 27V power supply circuit and a voltmeter is connected in parallel.

[0039] The application layer includes a UI interface, which is responsible for completing the human-computer interaction interface and preparatory work before testing. The UI interface of this inspection device is designed using the Visual C++6.0 development tool. The MFC module of the development tool has good API functions and a large number of class structures. It is easy to add and expand, and the built UI interface is simple and friendly. Software designers use MFC to build various test operation interfaces, write corresponding window initialization functions and functions of various controls inside the window. At the same time, the development tool can help software developers design the special functions of the software in accordance with the user interface and standard definition interface under the MFC framework, and use the macro mechanism to link messages to corresponding class member functions. This mechanism allows the program to link various complex command functions.

[0040] like Figure 3As shown, for this architecture, the key component selection includes tablet computer 1, tablet computer 2, all-in-one computer, programmable multimeter, agent control unit, dual-display voltage and current meter, various industrial power modules and device interface module connectors; the design includes the host chassis and its internal layout, wiring, and agent control unit circuit design; and the development includes FPGA-based software development of the agent control unit.

[0041] The interface layer includes a plurality of application interface functions, so that developers can call function functions without having to deeply understand the underlying source code and quickly implement function functions.

[0042] The task layer completes the writing of test functions according to the test requirements, calls various test resources by calling the encapsulation functions written by the interface layer, completes the ejection seat test, processes the test data, and presents it in a visual form on the main interface of the test software.

[0043] like Figure 6 As shown, for each type of aircraft ejection seat, complete the seat test and single-seat cockpit test. The seat test only requires connecting the seat-related cables and the main engine; the single-seat cockpit test requires connecting the seat-related cables, cockpit-related cables, the main engine and the auxiliary engine. Specific inspection objects include the aircraft seat ejection mechanism squib, deflector squib, restraint system squib, onboard signals, canopy signals and protective helmet signals.

[0044] like Figure 7 As shown, the dual-seat test connection of the present invention is specifically composed of an aircraft, front and rear seats, two test hosts and test cables. The dual-seat cockpit test requires the connection of seat-related cables, cockpit-related cables, a host and an auxiliary machine; specific inspection objects include aircraft seat ejection mechanism squibs, deflector squibs, restraint system squibs, onboard signals, canopy signals and protective helmet signals.

[0045] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions only describe the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A portable aircraft ejection seat ground automated inspection device, characterized in that: It includes a host, a slave that receives data sent by the host, schedules different threads to process and display data according to the data type, and an inspection device component for realizing automatic inspection of the host and the slave, specifically: The host includes a seat to be tested, an industrial host, a programmable multimeter, an agent control unit, a dual-display voltage and current meter, various industrial power modules and a device interface module; The secondary machine is a tablet computer 1; The inspection equipment assembly includes an all-in-one machine and a tablet computer.

2. A portable aircraft ejection seat ground automated inspection device according to claim 1, characterized in that: The industrial host is a controller.

3. A portable aircraft ejection seat ground automated inspection device according to claim 2, characterized in that: The integrated machine is provided with an RS232 serial interface, a USB interface and a VGA interface, and the integrated machine communicates with the proxy control unit via the serial port.

4. The portable aircraft ejection seat ground automated inspection equipment according to claim 1, characterized in that: The integrated machine is connected to the program-controlled multimeter via a USB interface.

5. The portable aircraft ejection seat ground automated inspection equipment according to claim 1, characterized in that: The integrated machine is connected to the display of the industrial host through a VGA line, and WIFI is used between the integrated machine and the tablet computer 2 to exchange data and confirm test items.

6. The portable aircraft ejection seat ground automated inspection equipment according to claim 1, characterized in that: The industrial host, tablet computer 1 and tablet computer 2 are all provided with an application layer, an interface layer and a task layer for completing the initialization of hardware resources and the data collection and analysis of the entire test process.

7. The portable aircraft ejection seat ground automated inspection equipment according to claim 6, characterized in that: The application layer includes a UI interface.

8. The portable aircraft ejection seat ground automated inspection device according to claim 6, characterized in that: The interface layer includes multiple application interface functions.

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