CN212047947U - Airborne Fire Control System Automatic Test Device - Google Patents

Abstract

The new model discloses an automatic test device for an airborne fire control system, comprising a test turntable and an automatic test system. The test turntable includes a support mechanism and a rotating mechanism arranged on the support mechanism. The rotating drive mechanism on the support mechanism drives the rotating mechanism and the automatic test system to rotate, simulating the turning angular velocity of the aircraft. After the automatic test system is powered by the conductive circuit formed by the brush and the conductive ring, the corresponding parameters of the airborne fire control system are obtained. The qualification of the measurement results is judged; by controlling the start and stop of the rotation of the test turntable, the on-board fire control system is driven to rotate, simulating the turning angular velocity of the aircraft, and finally the automatic test system obtains the corresponding parameters of the on-board fire control system and measures the results. Qualification judgment is carried out to test the dynamic performance and static performance of the airborne fire control system. One person can complete the inspection of the airborne fire control system, saving manpower and material resources.

Description

Airborne Fire Control System Automatic Test Device

Technical field:

The new model relates to the field of airborne fire control system testing, in particular to an airborne fire control system automatic test device.

Background technique:

The airborne fire control system is used for the calculation of the fire control formula, the output of the aiming symbol and the control of the aiming process. The quality of its performance directly affects the accuracy of the fighter's aiming and the combat effectiveness of the fighter. Therefore, it is necessary to periodically detect the off-position. The performance of the airborne fire control system.

When the off-position detection of the airborne fire control system is carried out, the airborne fire control system needs to be installed on the detection frame for detection, and then various parameters of the airborne fire control system are collected, and after comprehensive judgment, the machine calibration is completed. Off-position detection of the on-board fire control system; in the prior art, personnel need to use a variety of instruments to manually collect the on-board fire control system in turn, and then input it to the industrial computer for comprehensive judgment, requiring multiple personnel to cooperate to complete the detection operation, At the same time, the existing detection frame for fixing the airborne fire control system is a fixed structure, which cannot simulate the working environment of the airborne fire control system, which reduces the accuracy of detection. Therefore, the existing simple fixed detection frame can no longer be used. meet testing needs.

Utility model content:

The technical problem to be solved by this new model is: to overcome the deficiencies of the existing technology, by controlling the start and stop of the rotation of the test turntable, the on-board fire control system is driven to rotate, simulating the turning angular velocity of the aircraft, and finally the automatic test system obtains the information of the on-board fire control system. Corresponding parameters, and judging the eligibility of the measurement results, to realize the automatic test device of the airborne fire control system for testing the dynamic performance and static performance of the airborne fire control system.

The technical solution of the new type is: an automatic test device for an airborne fire control system, comprising a test turntable and an automatic test system arranged on the test turntable, characterized in that: the test turntable comprises a support mechanism and is arranged on the test turntable. A rotating mechanism on the support mechanism, the automatic test system is set on the rotating mechanism, and the rotating mechanism and the automatic test system are driven to rotate by the rotating drive mechanism disposed on the support mechanism, simulating the turning angular velocity of the aircraft, After the automatic test system is powered by the conductive circuit formed by the brush and the conductive ring, the corresponding parameters of the airborne fire control system are obtained, and the qualification of the measurement results is judged to complete the dynamic performance and static performance of the airborne fire control system. performance test;

The automatic test system includes an interconnected industrial computer, an excitation box, a measurement box, and a color camera,

Industrial computer: run the test software, provide the test man-machine interface, control the excitation box to automatically output various excitation signals required by the device under test, control the measurement box to automatically test the functions and performance parameters of the device under test, and provide feedback on the test results. Carry out automatic determination of eligibility;

Excitation box: output various excitation signals required by the device under test and control the rotation of the rotating mechanism;

Measuring box: measure the function and performance parameters of the device under test;

Color Camera: Takes a hybrid image of the aiming ring and tick marks from the optical barrel.

Further, the support mechanism includes a chassis, a column and a column fixing device, the chassis is a circular steel plate, one end of the column is fixed at the center of the circular steel plate of the base through the column fixing device, and the other end of the column is sleeved with the conductive ring. The rotating mechanism is supported.

Further, the rotating mechanism includes a rotating table surface, a rotating rotating cylinder and a seat, the upper part of the rotating rotating cylinder is fixedly connected with the rotating table surface, and the lower part of the rotating rotating cylinder is sleeved on the pillar of the supporting mechanism, and is connected with the worm gear two. The connecting steel plate is connected with the second worm wheel, and the second worm wheel rotates on the support fixing device of the supporting mechanism through the second plane bearing of the worm wheel.

Further, a rotating rotating cylinder bearing and the brush are sleeved between the rotating rotating cylinder and the support, a steel beam is welded in the middle of the rotating rotating cylinder, and the seat is set on the steel beam through bolts.

Further, the rotating table is a circular plywood, the upper surface of which is provided with mounting holes for the device under test, the industrial computer and the color camera, and the lower surface is provided with mounting holes for the rotating drum, the excitation box and the measuring box.

Further, the installation hole of the industrial computer is provided with a conical cylindrical fixing frame, the industrial computer is fixedly arranged on the top of the fixing frame, the middle of the fixing frame is provided with an optical cylinder and a rotating shaft, and one end of the rotating shaft is provided with a The other end of the rotating shaft is connected to the inside of the fixed frame. The rotating mechanism includes a worm gear and a worm that cooperate with each other to rotate. The worm gear is sleeved on the rotating shaft. The worm is installed inside the fixed frame through a worm bearing. One end of the worm is fixed through The back of the frame is connected with the worm operating handle; the worm wheel is provided with a stop hole, and a stop pin is movably arranged in the stop hole, which penetrates the fixed frame and is connected with the stop hand wheel, and the rotating shaft is installed inside the fixed frame through a rotating bearing.

Further, the rotary drive mechanism includes an electric motor, a control mechanism, a gearbox and two groups of worm gears, and the electric motor starts, stops, and rotates forward and reverse under the action of the control mechanism, and is connected to the gearbox through the first group of worm gears, The gearbox is linked with the second worm gear in the rotating mechanism through the second group of worm gears and worms to drive the rotating mechanism to rotate.

Further, the industrial computer includes an industrial computer and a DIO module, a bus module, an A/D module, a D/A module, and a video acquisition module installed in the industrial computer; the DIO module is used to output discrete signals, control the excitation box and The corresponding circuit in the measuring box works; the bus module is used to simulate other airborne equipment and the airborne fire control system to exchange information; the A/D module is used to collect the continuously changing analog signals sent by the measured equipment, speed sensors, etc.; D/ The A module is used to output the analog voltage to the excitation box; the video acquisition module is used to collect the video of the color camera, and conduct the automatic test of the aiming ring angle of the fire control system.

Further, the excitation box includes a motor start-stop relay circuit, a motor commutation circuit, a switch signal simulation circuit, an AC and DC power supply module, a load module and an excitation signal switch module controlled by discrete signals output by the DIO module; Relay circuit and motor commutation circuit are used for motor rotation control; switch signal simulation circuit is used to simulate switching action during single-piece testing; AC and DC power supply modules are used to output various power signals required by the equipment under test; load modules are used to simulate The load parameters required by the device under test; the excitation signal switch matrix is used to control the output and disconnection of the excitation signal; the operational amplifier circuit in the excitation box is used to amplify the analog voltage, analog distance, and height continuously changing signals from the D/A module .

Further, the measurement box includes a smart meter, a signal conditioning circuit and a measurement signal switch matrix; the smart meter is used for automatic testing of various measurement signals of the device under test; the signal conditioning circuit is used for the signal from the device under test and the speed sensor. Conditioning to make the signal meet the measurement requirements of the A/D module; the measurement signal switch matrix is used to connect each measured signal to the test leads of the smart meter or the input channel of the A/D module in an orderly manner.

The beneficial effects of this new model are:

1. This new model drives the on-board fire control system to rotate by controlling the start and stop of the rotation of the test turntable, simulating the turning angular velocity of the aircraft, and finally obtains the corresponding parameters of the on-board fire control system by the automatic test system, and judges the eligibility of the measurement results. To test the dynamic performance and static performance of the airborne fire control system, one person can complete the detection of the airborne fire control system, saving manpower and material resources.

2. The chassis of this new type is a circular steel plate, and the pillar is fixed at the center of the circular steel plate by the pillar fixing device to ensure the stability of the chassis support and prevent the chassis support from tipping over during use, which may cause personnel and airborne fire control systems. and automatic detection of damage to the system.

3. The new type of rotating cylinder is sleeved on the pillars, and is supported by the rotating cylinder bearings between them to ensure the stability of the rotating cylinder on the pillars. The top of the pillars is fixed with a rotating table with mounting holes, which is convenient for the automatic test system and The airborne active system is fixedly installed to ensure the stability of the installation and prevent the automatic test system and the airborne fire control system from falling when the rotating table rotates.

4. The new model forms a conductive circuit through the wire loops sleeved on the pillars and the brushes arranged in the rotating drum, so as to realize the power supply to the automatic test system and the airborne mobile system installed on the rotating table, and the brushes rotate with the rotating drum. When the brush is in contact with the conductive ring at all times, the stability of the power supply is ensured.

5. The bottom of the new rotating drum is connected with the second worm gear through the second connecting steel plate of the worm wheel. The worm wheel is sleeved on the pillar and is set on the pillar fixing device through the second plane bearing of the worm wheel, so as to realize the support of the rotating drum and the rotating table, and also ensure its rotation. stability.

6. Steel beams are welded in the middle of the new rotating drum, and seats are installed by bolts for testers to ride on. When the rotating table drives the automatic test system and the airborne fire control system to rotate, the operators can rotate together, which is convenient for the operators. personnel to conduct inspections.

7. The new control mechanism realizes the start-stop, steering control and speed measurement of the motor, and the test turntable simulates 12 kinds of turning angular speeds of the aircraft through the 6-speed gearbox, which is convenient for the accurate detection of the airborne fire control system.

8. The new model drives the worm to rotate through the worm operating handle, the worm drives the worm wheel to rotate, and the worm wheel is sleeved on the rotating shaft, so that the rotating shaft drives the equipment under test connected to it to rotate, realizes the adjustment of the angle of the equipment under test, simulates The use and installation angle of the airborne fire control system is also used to read the aiming ring angle output by the airborne fire control system through the installed optical tube, so as to improve the detection accuracy.

9. The new worm gear is provided with a stop hole, and the stop pin is inserted into the stop hole or pulled out from the stop hole by the stop hand wheel, so as to realize the fixed limit of the worm wheel and prevent the second installation frame from rotating during the detection. affect the detection accuracy.

10. The new automatic test device for airborne fire control system adopts universal design technology, which can test a variety of airborne fire control systems, and can carry out single-piece test or overall test of complete set of systems.

11. The new model measures the angle signal. Therefore, the system adopts the method of image recognition to measure the aiming angle, which not only improves the test accuracy, but also improves the test efficiency. Angle, and then manually input the read angle data into the test system, resulting in large interpretation errors and low efficiency.

12. The new model adopts a high-speed color camera to capture the mixed image of the aiming ring and the scale line from the optical tube, which can measure the angle of the aiming ring at a high speed, and can also monitor the jumping fault of the aiming ring which is not easy to be observed by the human eye.

Description of drawings:

FIG. 1 is a schematic structural diagram of the application.

FIG. 2 is a schematic structural diagram of a support mechanism.

FIG. 3 is a schematic structural diagram of a rotating mechanism.

FIG. 4 is a schematic structural diagram of a rotary drive mechanism.

FIG. 5 is a schematic structural diagram of a rotating mechanism.

FIG. 6 is a schematic structural diagram of an optical barrel.

FIG. 7 is a schematic diagram of the structure of the fixing frame.

Figure 8 is a top view of the rotary table.

Figure 9 is a bottom view of the rotating table.

Figure 10 is a motor control circuit.

Figure 11 is a block diagram of the automatic test system connection.

Figure 12 is a schematic diagram of automatic measurement of the aiming ring angle.

Detailed ways:

Example: see Figure 1, Figure 2, Figure 3, Figure 4, Figure 5, Figure 6, Figure 7, Figure 8, Figure 9, Figure 10, Figure 11 and Figure 12; Rotation mechanism, 3-rotation drive mechanism, 4-brush, 5-conductive ring, 6-industrial computer, 7-excitation box, 8-measurement box, 9-color camera, 10-fixed frame, 11-transmission shaft, 12 -Optical barrel, 13-worm, 14-worm bearing, 15-worm operating handle, 16-stop hole, 17-stop handwheel, 18-stop pin, 19-rotating bearing, 20-worm wheel;

1a-chassis, 1b-pillar, 1c-pillar fixing device;

2a- rotating table, 2b- rotating rotating cylinder, 2c-seat, 2d- rotating rotating cylinder bearing, 2e- connecting steel plate of test bench, 2f- steel beam, 2g- seat, 2h- worm gear two connecting steel plate, 2i- worm gear Two plane bearing;

3a-motor, 3b-gearbox, 3c-worm gear mechanism, 3d-start-stop control switch, 3e-DIO module, 3f-motor start-stop relay circuit, 3g-motor steering relay circuit, 3h-gear handle, 3b1- Input shaft, 3b2-output shaft;

12a-socket, 12b-bulb, 12c-dial, 12d-lens group, 12e-optical barrel mounting hole;

6a-industrial computer, 6b-bus module, 6c-A/D module, 6d-D/A module, 6e-video acquisition module, 6f-speed sensor;

7a-motor commutation circuit, 7b-switch signal simulation circuit, 7c-operational amplifier circuit, 7d-AC/DC power supply module, 7e-load module, 7f-excitation signal switch matrix;

8a-intelligent instrument, 8b-signal conditioning circuit, 8c-measurement signal switch matrix;

A-device under test one, B-device under test two, C-device under test three, D-device under test four, E-device under test five, F-device under test six, G-device under test seven, H - Aiming ring, I-scale center, J-scale, K-wire hole.

The present application discloses an automatic test device for an airborne fire control system, including a test turntable and an automatic test system arranged on the test turntable. The test turntable includes a support mechanism 1 and a rotation mechanism 2 arranged on the support mechanism 1. The automatic test system It is set on the rotating mechanism 2, and is driven by the rotating driving mechanism 3 set on the supporting mechanism 1 to drive the rotating mechanism 2 and the automatic test system to rotate, simulating the turning angular velocity of the aircraft. After the line is powered, the corresponding parameters of the airborne fire control system are obtained, the qualification of the measurement results is judged, and the dynamic performance and static performance of the airborne fire control system are tested;

The automatic test system includes an interconnected industrial computer 6, an excitation box 7, a measurement box 8, and a color camera 9;

Industrial computer 6: run the test software, provide the test man-machine interface, control the excitation box 7 to automatically output various excitation signals required by the device under test, control the measurement box 8 to automatically test the functions and performance parameters of the device under test, and Automatically determine the eligibility of the test results;

Excitation box 7: output various excitation signals required by the device under test and control the rotation of the rotating mechanism 2;

Measuring box 8: measure the function and performance parameters of the equipment under test;

Color camera 9: Takes a mixed image of the aiming ring and tick marks from the optical barrel 12;

By controlling the start and stop of the rotation of the test turntable, the on-board fire control system is driven to rotate, simulating the turning angular velocity of the aircraft, and finally the automatic test system obtains the corresponding parameters of the on-board fire control system, and judges the eligibility of the measurement results. The dynamic performance and static performance of the fire control system are tested, and one person can complete the inspection of the airborne fire control system, saving manpower and material resources.

The present application will be described in detail below with reference to the embodiments and the accompanying drawings.

The test turntable has the function of installation and the function of simulating the turning angular velocity of the fighter. It mainly includes a supporting mechanism 1, a rotating mechanism 2, and a rotating driving mechanism 3.

a. Supporting mechanism

The support mechanism 1 is used to stabilize and support the test turntable to prevent the test turntable from tipping over, and includes a chassis 1a, a pillar 1b, a pillar fixing device 1c, a power plug, and mounting holes for connecting circuits and other components.

The chassis 1a is a circular steel plate, which is a stable counterweight for the entire test turntable, and is in contact with the ground. The chassis 1a also has mounting holes for fixing the rotary drive mechanism 3 .

The pillar 1b is the support mechanism of the rotating test stand, and is fixed at the center of the chassis 1a by the pillar fixing device 1c.

The power plug is connected to the chassis 1a, and a three-phase power supply is used to supply power to the entire system.

The conductive ring 5 is installed on the upper part of the support 1b, and is connected to the brush 4 on the inner wall of the rotating drum 2b of the rotating mechanism 2, and is used to transfer the power signal between the chassis 1a and the rotating mechanism 2.

b. Rotary mechanism

The rotating mechanism 2 is used to install the automatic test system, mounting frame, etc., and can rotate around the pillar 1b of the supporting mechanism 1 to simulate the turning angular velocity of the aircraft. The rotating mechanism 2 includes a rotating table 2a, a rotating drum 2b, and a seat 2c.

(a) The rotating table 2a is a circular plywood board with mounting holes for the equipment under test 1 to 7 and color camera 9 on the upper surface; mounting holes for the rotating drum 2b and the excitation box 7 for the automatic test system on the lower surface. , Measuring box 8 mounting holes.

(b) The rotating drum 2b is used to realize the rotation of the rotating table 2a around the pillar 1b of the support mechanism 1, simulating the turning acceleration of the aircraft. The rotary drum 2b is a steel cylinder, which is sleeved on the outer side of the column 1b of the support mechanism 1, and a rotary rotary bearing 2d is connected to the column 1b at the upper and lower sides, and can rotate around the column 1b. The upper part of the rotating drum 2b is welded with a circular test table connecting steel plate 2e, which is connected with the rotating table 2a by bolts, and drives the rotating table 2a to rotate; the middle part is welded with a steel beam 2f, and a seat 2g is installed through the bolts for the test personnel to ride; The lower part is welded with a second worm gear connecting steel plate 2h, which is connected to the second worm gear of the rotary drive mechanism 3 through bolts, and is rotated under the driving of the second worm gear (worm gear and worm mechanism 3c). On the pillar fixing device 1c, the rotating drum 2b and the rotating table surface 2a are supported, and the rotation stability thereof is also ensured. .

(c) The brush 4 is connected to the conductive ring 5 of the support mechanism 1, and is used to continuously connect the three-phase alternating current from the support mechanism 1 to the rotating table 2a when the rotating mechanism 2 rotates around the pillar of the support mechanism 1, for automatic The test system and the device under test are used; at the same time, the speed measurement sensor signal from the rotary drive mechanism 3 is transferred to the automatic test system for the test of the automatic test system.

c. Rotary drive mechanism

The rotation drive mechanism 3 is used to drive the rotation mechanism 2 to rotate around the pillar 1b of the support mechanism 1 to simulate the turning angular velocity of the aircraft. The rotary drive mechanism 3 mainly includes a motor 3a, a control mechanism, a gearbox 3b, a worm gear mechanism 3c and the like.

(a) The motor 3a adopts a three-phase asynchronous motor with a power of 0.8 kilowatts.

(b) The control mechanism is composed of a start-stop control switch 3d and a motor control circuit, and mainly realizes start-stop, steering control and rotational speed measurement of the motor 3a. The start-stop control switch 3d is mounted on the chassis 1a of the support mechanism 1, and is used for turning on and off the motor circuit.

When starting the test, put the start-stop control switch 3d in the "on" position to turn on the motor circuit; when the test is over or need to interrupt the test, put the start-stop control switch 3d in the "off" position to turn on the motor circuit. The motor control circuit is used for the output and cut-off of the motor power supply, and the commutation control of the motor power supply. Connection wire composition.

During operation, the 3 signal lines from the ~380V, 50Hz power supply from the plug of the support mechanism 1 are connected to the conductive ring 5 of the pillar 1a of the support mechanism 1, and then passed through the brush 4 on the inner wall of the rotating drum 2b of the rotating test bench. to the motor steering relay circuit 3g in the automatic test system; next, the industrial computer 6 automatically outputs discrete control signals to the motor steering relay circuit 3g through the DIO module 3e according to the motor steering parameters specified by the test program, and turns on the corresponding relay to realize the motor The switching of the steering circuit; finally, the industrial computer 6 automatically outputs the discrete control signal to the motor start-stop control relay circuit 3f through the DIO module 3e, turns on the start-stop relay, the ~380V, 50Hz power supply is sent to the motor coil, the motor 3a starts to rotate, . After the test is completed, the industrial computer 6 automatically outputs discrete control signals to the motor start-stop control relay circuit through the DIO module 3e, closes the start-stop relay, cuts off the power supply of the motor, and the motor 3a stops rotating. If the motor control circuit is abnormal, the power supply to the motor 3a can be cut off through the start-stop control switch 3d.

(c) The gearbox 3b is used to set the rotational speed of the rotary table 2a. The gearbox 3b has 6 gears, which are controlled by the gear lever 3h. Because the electric motor 3a can be forward and reversed, the test turntable can simulate 12 kinds of turning angular speeds.

(d) The worm gear mechanism 3c is used for changing the transmission ratio and the transmission direction. The test turntable has two sets of worm gear mechanisms, one set (worm gear 1) is connected to the motor 3a, and the other set (worm gear 2) is connected to the rotating drum 2b of the rotating mechanism 2.

During operation, the rotational speed of the motor 3a is transmitted to the input shaft 3b1 of the gearbox 3b after being decelerated by a group of worm gears (worm gear 1), and is output by the output shaft 3b2 of the gearbox 3b after being controlled by the gear position of the gearbox 3b, and then passes through a The sleeve worm gear (worm gear 2) is transmitted to the rotating drum 2b of the rotating mechanism 2 to drive the rotating drum 2b to rotate, and then the rotating drum 2b drives the rotating table 2a to simulate the turning angular velocity of the aircraft.

d. Fixing frame

Seven devices under test are installed on the rotating table 2a; among them, one device under test and the industrial computer 6 are installed on the rotating table 2a through the fixing frame 10, and the fixing frame 10 is a supporting mechanism for the installation frame of the equipment under test and the industrial computer 6 , the bottom is connected to the rotating table 2a through four bolts, the middle and lower parts are connected to a device under test through the transmission shaft 11, the optical tube 12 is installed in the upper part through two screws, and the industrial computer 6 is installed at the top through four screws.

One end of the rotating shaft 11 is provided with the device to be tested, and the other end of the rotating shaft 11 is connected to the rotating mechanism inside the fixed frame 10. The rotating mechanism includes a worm wheel 20 and a worm 13 that cooperate with each other to rotate. The worm wheel 20 is sleeved on the rotating shaft 11, and the worm 13 The worm bearing 14 is installed inside the fixing frame 10, and one end of the worm 13 penetrates the fixing frame 10 and is connected to the worm operating handle 15; the worm wheel 20 is provided with a stop hole 16, and the stop hole 16 is movably provided with a penetrating fixing frame 10. The stop pin 18 connected with the stop hand wheel 17 and the rotating shaft 11 are installed inside the fixed frame 10 through the rotating bearing 19 .

e. Optical tube

The optical tube 12 is used to display the angle scale, and is installed on the fixing frame 10 through the optical tube mounting hole 12e. During the test, the industrial computer 6 controls the excitation box 7 to output 220V AC power, and sends it to the light bulb 12b through the socket 12a of the optical tube 12. 12b emits light, the dial 12c is a circular optical glass with horizontal and vertical staggered scale lines drawn on it, and is installed on the focal plane of the lens group 12d. The scale image is used to read the aiming ring angle output by the device under test on the fixture 10.

The automatic test system is used to complete the off-site automatic test of the performance of the airborne fire control system, which includes an industrial computer 6 , an excitation box 7 , a measurement box 8 , and a color camera 9 .

The industrial computer 6 is the control core of the system test system, runs the test software, provides the test man-machine interface, controls the excitation box 7 to automatically output various excitation signals required by the equipment under test, and controls the measurement box 8 to automatically test various items of the equipment under test. function, performance parameters, and automatically determine the eligibility of the test results. The industrial computer 6 mainly includes an industrial computer 6a and a DIO module 3e, a bus module 6b, an A/D module 6c, a D/A module 6d, and a video capture module 6e installed in the computer.

The DIO module 3e is used for outputting discrete signals and controlling the corresponding circuits in the excitation box 7 and the measurement box 8 to work.

The bus module 6b is used to simulate other airborne equipment exchanging information with the airborne fire control system.

The A/D module 6c is used to collect continuously changing analog signals sent from the device under test, the rotational speed sensor 6f, and the like.

The D/A module 6d is used to output the analog voltage to the excitation box 7 .

The video acquisition module 6e is used to acquire the video of the color camera 9, and to perform automatic test of the aiming ring angle of the airborne fire control system.

The excitation box 7 is used to output various excitation signals required by the device under test and perform the rotation control of the rotating mechanism 2, including the motor start-stop relay circuit 3f, the motor commutation circuit 7a, the switch signal simulation circuit 7b, the operational amplifier circuit 7c, AC/DC power supply module 7d, load module 7e and excitation signal switch matrix 7f.

The motor start-stop relay circuit 3f and the motor commutation circuit 7a are used for motor rotation control.

The switch signal simulation circuit 7b is used to simulate the switch action during single-piece testing.

The operational amplifier circuit 7c is used to amplify the analog voltage from the D/A module 6d, and simulate the continuously changing signals such as distance and height.

The AC and DC power modules 7d are used to output various power signals required by the device under test.

The load module 7e is used to simulate the load parameters required by the device under test.

The excitation signal switch matrix 7f is used to control the output and disconnection of the excitation signal.

In the excitation box 7, except the operational amplifier circuit 7c, the other circuits are controlled by the discrete signals output by the DIO module 3e.

The measurement box 8 is used to measure the function and performance parameters of the device under test, and mainly includes a smart meter 8a, a signal conditioning circuit 8b and a measurement signal switch matrix 8c.

The smart meter 8a is used for automatic testing of various measurement signals of the device under test, including power supply, current, resistance, frequency, and the like.

The signal conditioning circuit 8b is used for conditioning the signals from the device under test and the rotational speed sensor 6f, so that the signals meet the measurement requirements of the A/D module 6c.

The measurement signal switch matrix 8c is used to connect each measured signal to the test leads of the smart meter 8a or the input channel of the A/D module 6c in an orderly manner.

The test work process is:

The automatic test device of airborne fire control system adopts universal design technology, which can test a variety of airborne fire control systems, and can carry out single-piece test or overall test of complete system.

The parameters that the airborne fire control system needs to measure are mainly divided into two categories, one is electrical signals, such as voltage, current, resistance, frequency, data, etc.; the other is the aiming ring angle.

For electrical signal measurement, the automatic test system can automatically measure by measuring instruments such as the smart meter 8a, the A/D module 6c, the DIO module 3e, and the bus module 6b.

For angle signal measurement, the general method is to first read the aiming ring angle by a human, and then manually input the read angle data into the test system, which not only has a large interpretation error, but also has low efficiency. Therefore, the system adopts the method of image recognition to measure the aiming angle, which not only improves the test accuracy, but also improves the test efficiency. The specific method is that the industrial computer 6 reads the mixed image of the aiming ring and the scale line taken by the color camera 9 from the optical tube 12 through the video acquisition module 6e, and through image recognition, the center of the scale (O) and the center of the aiming ring (A) can be obtained. Coordinates, establish a Cartesian coordinate system with the scale center O, then the coordinates of point A can be calculated, denoted as A(x, y), then the azimuth and pitch angles of the aiming are x*d, y*d, respectively, and d is the scale for each The angle value represented by one cell. Using the high-speed color camera 9, the angle of the aiming ring can be measured at a high speed, and the jumping fault of the aiming ring which is not easily observed by the human eye can also be monitored.

The airborne fire control system can be divided into static performance test and dynamic performance test according to the test content.

When carrying out the static performance test procedure of the airborne fire control system, the tester first puts the motor start-stop control switch 3d on the rotary drive system to the "off" position to cut off the motor circuit; then the tester selects the item to be tested, Start the static parameter test program, and the static parameter test program completes the test items selected by the tester one by one. When a certain item is tested by the static parameter test program, the industrial computer 6 first outputs a control signal to the motor start-stop relay circuit 3f through the DIO module 3e, disconnects the motor power relay, and the test turntable does not rotate; then the industrial computer 6 according to the current test item The device automatically controls the excitation box 7 to output various excitation signals required by the device under test, and prompts the tester to perform corresponding operations on the device under test, such as flipping the switch, turning the handle, etc.; finally, the industrial computer 6 controls the measurement box 8, video The collection module 6e collects various parameters to be tested for the current project, and judges the eligibility of the measurement results.

When carrying out the test procedure of the dynamic performance of the airborne fire control system, the tester must first put the motor start-stop control switch 3d on the rotary drive system to the "on" position, and connect the motor circuit, but because the test system does not connect the motor power , the motor does not rotate; then the tester selects the items to be tested, and finally starts the dynamic parameter test program, which completes the test items selected by the tester one by one. When a certain item is tested, the industrial computer 6 first outputs the control signal to the motor steering relay circuit 3g through the DIO module 3e to set the motor steering; then outputs the control signal to the motor start-stop relay circuit 3f, turns on the motor power relay, and tests The turntable starts to rotate. Next, the industrial computer 6 collects the rotational speed of the rotating table 2a through the A/D module 6c, and judges whether the rotational speed meets the requirements. If the test requirements are met, the industrial computer 6 outputs the excitation signal to complete the test parameter test, and then outputs the control signal to the motor start-stop relay circuit 3d through the DIO module 3e, disconnects the motor power supply, and the test turntable stops rotating; if the test requirements are not met, It will prompt the test system failure and terminate the test.

The above are only the preferred embodiments of the present invention, and are not intended to limit the present invention in any form. Any simple modifications, equivalent changes and modifications made to the above embodiments according to the technical essence of the present invention still belong to within the scope of the new technical solution.

Claims (10)

1. The utility model provides an airborne fire control system automatic testing device, is in including test revolving stage and setting automatic test system on the test revolving stage, characterized by: the test turntable comprises a supporting mechanism and a rotating mechanism arranged on the supporting mechanism, the automatic test system is arranged on the rotating mechanism, the rotating mechanism and the automatic test system are driven to rotate by a rotary driving mechanism arranged on the supporting mechanism, the turning angle speed of the airplane is simulated, after the automatic test system is powered by a conductive circuit formed by an electric brush and a conductive ring, corresponding parameters of the airborne fire control system are obtained, the qualification judgment is carried out on the measurement result, and the dynamic performance and the static performance test of the airborne fire control system are completed;

the automatic test system comprises an industrial personal computer, an excitation box, a measurement box and a color camera which are connected with each other,

an industrial personal computer: running test software, providing a test human-computer interaction interface, controlling the excitation box to automatically output various excitation signals required by the tested equipment, controlling the measurement box to automatically test various functions and performance parameters of the tested equipment, and automatically judging the qualification of the test result;

an excitation box: outputting various excitation signals required by the tested equipment and carrying out rotation control on the rotating mechanism;

a measuring box: measuring the function and performance parameters of the tested equipment;

color camera: a blended image of the sight ring and the scale marks is taken from the optical barrel.

2. The automatic testing device of the airborne fire control system according to claim 1, which is characterized in that: the supporting mechanism comprises a chassis, a support column and a support column fixing device, the chassis is a circular steel plate, one end of the support column is fixed at the circle center position of the circular steel plate of the base through the support column fixing device, and the rotating mechanism is supported after the conducting ring is sleeved at the other end of the support column.

3. The automatic testing device of the airborne fire control system according to claim 1, which is characterized in that: the rotating mechanism comprises a rotating table board, a rotating cylinder and a seat, the upper part of the rotating cylinder is fixedly connected with the rotating table board, the lower part of the rotating cylinder is sleeved on a support column of the supporting mechanism and is connected with a second worm gear through a second worm gear connecting steel plate connected with the rotating cylinder, and the second worm gear rotates on a support column fixing device of the supporting mechanism through a two-plane worm gear bearing.

4. The automatic testing device of the airborne fire control system of claim 3, which is characterized in that: the seat is characterized in that a rotary cylinder bearing and the electric brush are sleeved between the rotary cylinder and the pillar, a steel beam is welded in the middle of the rotary cylinder, and the seat is arranged on the steel beam through bolts.

5. The automatic testing device of the airborne fire control system of claim 3, which is characterized in that: the rotary table top is a circular plywood, the upper surface of the rotary table top is provided with a tested device, an industrial personal computer and a color camera mounting hole, and the lower surface of the rotary table top is provided with a rotary cylinder, an excitation box and a measurement box mounting hole.

6. The automatic testing device of the airborne fire control system of claim 5, which is characterized in that: the industrial personal computer is characterized in that a conical cylindrical fixing frame is arranged on a mounting hole of the industrial personal computer, the industrial personal computer is fixedly arranged at the top of the fixing frame, an optical cylinder and a rotating shaft are arranged in the middle of the fixing frame, tested equipment is arranged at one end of the rotating shaft, the other end of the rotating shaft is connected with a rotating mechanism in the fixing frame, the rotating mechanism comprises a worm wheel and a worm which are matched with each other to rotate, the worm wheel is sleeved on the rotating shaft, the worm is arranged in the fixing frame through a worm bearing, and one end of; the worm wheel is provided with a stop hole, a stop pin penetrating through the fixing frame and connected with the stop hand wheel is movably arranged in the stop hole, and the rotating shaft is installed in the fixing frame through a rotating bearing.

7. The automatic testing device of the airborne fire control system according to claim 1, which is characterized in that: the rotary driving mechanism comprises an electric motor, a control mechanism, a gearbox and two groups of worm gears, the electric motor is started, stopped and rotated positively and negatively under the action of the control mechanism and is connected with the gearbox through the first group of worm gears, and the gearbox is linked with a worm gear II in the rotary mechanism through the second group of worm gears to drive the rotary mechanism to rotate.

8. The automatic testing device of the airborne fire control system according to claim 1, which is characterized in that: the industrial personal computer comprises an industrial computer, and a DIO module, a bus module, an A/D module, a D/A module and a video acquisition module which are arranged in the industrial computer; the DIO module is used for outputting discrete magnitude signals and controlling corresponding circuits in the excitation box and the measurement box to work; the bus module is used for simulating other airborne equipment to exchange information with the airborne fire control system; the A/D module is used for acquiring continuously changed analog signals sent by the equipment to be tested, the rotating speed sensor and the like; the D/A module is used for outputting analog voltage to the excitation box; the video acquisition module is used for acquiring the video of the color camera and automatically testing the aiming ring angle of the fire control system.

9. The automatic testing device of the airborne fire control system according to claim 1, which is characterized in that: the excitation box comprises a motor start-stop relay circuit, a motor reversing circuit, a switch signal simulation circuit, an alternating current/direct current power supply module, a load module and an excitation signal switch module, wherein the motor start-stop relay circuit, the motor reversing circuit, the switch signal simulation circuit, the alternating current/direct current power supply module, the load module and the excitation signal switch module are controlled by discrete signals output by the DIO module; the motor starting and stopping relay circuit and the motor reversing circuit are used for controlling the rotation of the motor; the switch signal simulation circuit is used for simulating the switch action during single-piece testing; the alternating current and direct current power supply module is used for outputting various power supply signals required by the tested equipment; the load module is used for simulating load parameters required by the tested equipment; the excitation signal switch matrix is used for controlling the output and disconnection of the excitation signal; and the operational amplifier circuit in the excitation box is used for amplifying the analog voltage, analog distance and height continuous change signals from the D/A module.

10. The automatic testing device of the airborne fire control system according to claim 1, which is characterized in that: the measuring box comprises an intelligent instrument, a signal conditioning circuit and a measuring signal switch matrix; the intelligent instrument is used for automatically testing various measuring signals of the tested equipment; the signal conditioning circuit is used for conditioning signals from the tested equipment and the rotating speed sensor so that the signals meet the measurement requirements of the A/D module; the measurement signal switch matrix is used for orderly connecting each measured signal to an input channel of a meter pen or an A/D module of the intelligent instrument.

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