CN212829143U

CN212829143U - Flight product simulation hanging and power-up test equipment

Info

Publication number: CN212829143U
Application number: CN202021240456.2U
Authority: CN
Inventors: 许冲; 刘阿利; 程敬德
Original assignee: State-Owned Luoyang Dancheng Radio Factory
Current assignee: State-Owned Luoyang Dancheng Radio Factory
Priority date: 2020-06-30
Filing date: 2020-06-30
Publication date: 2021-03-30
Anticipated expiration: 2030-06-30

Abstract

The utility model relates to the technical field of power-up test, and discloses a flight product simulation hanging power-up test device, which comprises a measurement and control cabinet, wherein the measurement and control cabinet consists of a combined module and a power supply combination, and the combined module comprises an indication component, a port component and a switch component; the indicating assembly arranged at the upper part of the measurement and control cabinet comprises a counter, a plurality of voltmeters and a plurality of ammeters, and a corresponding ammeter is arranged below each row of voltmeters; the middle upper part of the cabinet body is provided with a port assembly for quick plug connection, and the port assembly for quick plug connection comprises a plurality of rows of quick plug connecting seats; the middle lower part of the cabinet body is provided with a switch component for controlling and indicating, which comprises a component consisting of an indicator light and a control switch; the cabinet body is internally provided with a simulated hanging and flying power-up test circuit. The utility model discloses can simulate and surveyed the aerial actual power-up process of product, control, detect and judge electrical status in the experiment, and convenient operation, swift, safe, satisfied experimental operation requirement.

Description

Flight product simulation hanging and power-up test equipment

Technical Field

The utility model relates to a add electric test technical field, especially relate to a flight product simulation is hung and is gone with electric test equipment.

Background

Because a life-prolonging research project of a flying product is developed, a simulated hanging flight test needs to be carried out, the test simulates the actual aerial working process and environment of the product on the ground, and a power-on test device needs to be developed to control and detect the electrical state change process of the product in the test and judge the performance of the product.

Disclosure of Invention

For solving foretell technical problem, the utility model provides a flight product simulation is hung and is added electrical test equipment for hang to flight product simulation and fly to add of in the test process with electric and test, in order to realize that this product simulation is hung and is flown in the experiment, simulate this product and actually add the electrical process in the air, and give aerial detection condition, obtain aerial testing result. And actually simulating the actual working condition of the product in the air.

In order to achieve the purpose, the utility model adopts the following technical scheme:

a flight product simulation hanging-flight power-up test device comprises a measurement and control cabinet, wherein the measurement and control cabinet is composed of a combination module and a power supply combination, and the combination module comprises an indication assembly 1, a port assembly 2 and a switch assembly 3; the indicating assembly 1 arranged at the upper part of the measurement and control cabinet comprises a counter 1.3, a plurality of voltmeters 1.1 and a plurality of current meters 1.2, and the corresponding current meters 1.2 are arranged below the voltmeters 1.1 of each row; the middle upper part of the cabinet body is provided with a quick-plug connected port assembly 2, and the quick-plug connected port assembly 2 comprises a plurality of rows of quick-plug connecting seats 2.1; a switch component 3 for controlling and indicating is arranged at the middle lower part of the cabinet body, and the switch component 3 for controlling and indicating comprises a component consisting of an indicator lamp 3.1 and a control switch 3.2; the middle lower part of the cabinet body is provided with a front cabinet door; the upper end 5 of the back of the cabinet body is provided with a heat extraction device 5.1, the lower end 8 of the back of the cabinet body is provided with a plurality of cable sockets and air switches U, and the cable sockets comprise a cable socket X6 and a cable socket X7; an upper cabinet door 6 and a middle and lower cabinet door 7 are arranged between the upper end 5 of the back of the cabinet body and the lower end 8 of the back of the cabinet body, and a simulated hanging and flying power-up test circuit is arranged in the cabinet body.

A flight product simulation hanging-flying power-up test device is characterized in that a plurality of three-position semi-standard digital display meter heads for displaying voltage values and current values are arranged on an indication combination front panel and are used for monitoring power supply of a tested product and the current consumption condition of the product in real time; the indication combination front panel is also provided with a first timer which is used for confirming the time in the test process; the port combination front panel is provided with 48 and 1 BNC sockets and 1 indicator light, the sockets are connected with signal lines on an external interface of a tested product and can be connected with various universal instruments to monitor each signal on the external interface. The port combination is internally provided with 11 resistors which are connected to the power supply output end in parallel and used for removing interference.

A flight product simulation hanging-flying power-on test device is characterized in that a power supply LN of a flight product simulation hanging-flying power-on test circuit is respectively connected with a +27B1 power supply module U1, a +27B2 power supply module U2, a-27B 1 power supply module U3, a dual power supply module U4, a three power supply module U5, a counter and a code sender F through an air switch U and a power supply cable L1N1, and the output end of the power supply module U1 is respectively connected with 4 output on-off rectifying circuits; the output end of the power supply module U2 is connected with a 1-path output on-off rectification circuit; the output end of the power supply module U3 is connected with the 1-path output on-off negative rectification circuit; the 2-path output end of the power supply module U4 is respectively connected with the 2-path output on-off rectification circuit; the 1 path of the output end of the power supply module U5 is connected with the 1 path of output on-off rectification circuit; and 2 paths and 3 paths of the output end of the power supply module U5 are respectively connected with the 2-path output on-off negative rectification circuit.

The utility model provides a flight product simulation is hung and is flown and add electrical test equipment, add that power on-off rectifier circuit passes through the fuse by the ampere meter and links to each other with switch K, and the switch K other end links to each other with diode D and pilot lamp L respectively, and the other end ground connection of pilot lamp L, the other end of diode D are the connecting terminal of output/input.

A flight product simulation hanging and flying power-on test device is disclosed, wherein a code transmitter F is an ARINC429 code transmitter, one end of the code transmitter F is connected with an indicator light L and is connected with a power cable L1N1 through a switch K; the other end of the indicator light L is grounded, and the other end of the code sender F is a connecting terminal.

Due to the adoption of the technical scheme, the utility model discloses a concrete advantage as follows:

a flight product simulation hanging-flight power-on test device can simulate the actual power-on process of a tested product in the air, give air detection conditions, control and detect the electrical state change process of the product in a test, and judge the performance of the product. The method realizes the smooth operation of the simulated hanging flight test of the product and ensures the smooth completion of the life-prolonging research project of the product. From the actual use effect of the tested product simulation hang-off test, the invention has safe, convenient and quick operation, ensures the smooth operation of the product simulation hang-off test, well ensures the safety and reliability of equipment and meets the use requirement. Because the tested product simulation hanging test is carried out in a foreign department, the easy maintainability and maintainability of the equipment are fully considered in the equipment design process, a general separating device is adopted as far as possible, and the repair and replacement after the problem is caused are convenient.

Drawings

FIG. 1 is a schematic diagram of a simulated airborne electric test apparatus for a flying product;

FIG. 2 is a rear view of FIG. 1;

fig. 3 is a circuit schematic of a simulated fly-by power-on test device.

FIG. 4 is a schematic diagram of a power-on-off rectifier circuit.

FIG. 5 is a test block diagram of a power-on test device.

Fig. 6 is a schematic diagram of the principle of level shifting.

Fig. 7 is a power supply line diagram.

Fig. 8 is a clock/reset wiring diagram.

FIG. 9 is a JTAG program interface circuit diagram.

Fig. 10 is a data shift transmission cycle flowchart.

Detailed Description

As shown in fig. 1, 2, 3, 4, 5, 6, 7, 8, 9, and 10, a flight product simulation on-hook power-up test device includes a measurement and control cabinet, the measurement and control cabinet is composed of a combination module and a power supply combination, the combination module includes an indication component 1, a port component 2, and a switch component 3; the indicating assembly 1 arranged at the upper part of the measurement and control cabinet comprises a counter 1.3, a plurality of voltmeters 1.1 and a plurality of current meters 1.2, and the corresponding current meters 1.2 are arranged below the voltmeters 1.1 of each row; the middle upper part of the cabinet body is provided with a quick-plug connected port assembly 2, and the quick-plug connected port assembly 2 comprises a plurality of rows of quick-plug connecting seats 2.1; a switch component 3 for controlling and indicating is arranged at the middle lower part of the cabinet body, and the switch component 3 for controlling and indicating comprises a component consisting of an indicator lamp 3.1 and a control switch 3.2;

the middle lower part of the cabinet body is provided with a front cabinet door; the upper end 5 of the back of the cabinet body is provided with a heat extraction device 5.1, the lower end 8 of the back of the cabinet body is provided with a plurality of cable sockets and air switches U, and the cable sockets comprise a cable socket X6 and a cable socket X7; an upper cabinet door 6 and a middle and lower cabinet door 7 are arranged between the upper end 5 of the back of the cabinet body and the lower end 8 of the back of the cabinet body, and a simulated hanging and flying power-up test circuit is arranged in the cabinet body.

The indication combination front panel is provided with a plurality of three-position semi-standard digital display meter heads for displaying voltage values and current values, and is used for monitoring the power supply of a measured product and the current consumption condition of the product in real time; the indication combination front panel is also provided with a first timer which is used for confirming the time in the test process; the port combination front panel is provided with 48 and 1 BNC sockets and 1 indicator light, the sockets are connected with signal lines on an external interface of a tested product and can be connected with various universal instruments to monitor each signal on the external interface. The port combination is internally provided with 11 resistors which are connected to the power supply output end in parallel and used for removing interference.

The simulated flying power-on test circuit is characterized in that a power supply LN is respectively connected with a +27B1 power supply module U1, a +27B2 power supply module U2, a-27B 1 power supply module U3, a dual power supply module U4, a triple power supply module U5, a counter and a code sender F through an air switch U and a power supply cable L1N1, and the output end of the power supply module U1 is respectively connected with a 4-path output on-off rectifying circuit; the output end of the power supply module U2 is connected with a 1-path output on-off rectification circuit; the output end of the power supply module U3 is connected with the 1-path output on-off negative rectification circuit; the 2-path output end of the power supply module U4 is respectively connected with the 2-path output on-off rectification circuit; the 1 path of the output end of the power supply module U5 is connected with the 1 path of output on-off rectification circuit; and 2 paths and 3 paths of the output end of the power supply module U5 are respectively connected with the 2-path output on-off negative rectification circuit.

The power-on-off rectification circuit is connected with a switch K through a fuse by an ammeter, the other end of the switch K is respectively connected with a diode D and an indicator lamp L, the other end of the indicator lamp L is grounded, and the other end of the diode D is an output/input connecting terminal. The code sender F is an ARINC429 code sender, an indicator lamp L is connected to one end of the code sender F, the code sender is connected with a power cable L1N1 through a switch K, the other end of the indicator lamp L is grounded, and the other end of the code sender F is a connecting terminal.

According to the working process of hanging and flying a flying product in the air, the electric signal required to be loaded in the working process of the product is simulated, the flying task information is loaded, and whether the ready signal can be normally generated or not is examined.

Firstly, the equipment provides five electric signals required for entering a 'glow-in-process' state for the product through an external test interface of the product, so that the product enters the 'glow-in-process' state and is preheated for 3 min.

After preheating for more than 3min, the equipment provides seven electric signals required for entering a transmitting preparation state for the product through the external test interface of the product and orders flight mission information. The internal circuitry of the product performs self-tests and generates a "ready" signal.

The product outputs a ready signal to the outside, and the equipment acquires and detects whether the ready signal can be normally generated through an external interface of the product, so that the working state of the product is judged according to the ready signal.

The flight product simulation hanging and flying power-on test equipment consists of a test control cabinet and accessories. The measurement and control cabinet is composed of a combination module and a power supply combination. The combined module is divided into an indicating combination (component 1) and a port combination

(component 2) and a switch combination (component 3). The accessories comprise a test cable, a separation plug, an external general oscilloscope, an external multi-purpose meter and the like.

1. 22 three-position and half-standard digital display meter heads are arranged on the indication combination front panel. 11 display voltage values in 22 digital display meter heads, 11 display current values, and these 22 digital display meter heads are used for monitoring the power supply to the product and the current consumption condition of the product in real time. The indication combination front panel is also provided with a timer for confirming the time in the test process. The indicating combination is internally provided with 11 fuses for limiting and protecting output current and preventing the damage to a tested product and equipment caused by overlarge output current. The combination is also internally provided with a current divider matched with the ammeter, the output current is proportionally distributed, and the sampling conversion is performed to display on the ammeter of the panel.

2. The port combination front panel is provided with 48 and 1 BNC sockets and 1 indicator light, the sockets are connected with signal lines on an external interface of a tested product and can be connected with various universal instruments to monitor each signal on the external interface. The port combination is internally provided with 11 resistors which are connected to the power supply output end in parallel and used for removing interference.

3. The switch combination is formed by arranging 16 button switches and is provided with 16 indicating lamps. The power-on sequence of the tested product is manually controlled by an operator. The switch combination is internally provided with 17 diodes for preventing the reverse input of current. And a 429 code transmitter is also arranged for binding the flight mission of the tested product in the testing process. Meanwhile, 5 relays are also arranged and controlled by the switch on the switch combination panel, and are used for outputting multi-path power supply to the tested product.

4. The power supply combination comprises three linear power supplies and two switching power supplies, and the power supply combination provides 11 output power supplies in total.

5. A terminal wiring board is arranged on the back of the measurement and control cabinet, and the terminal wiring board consists of 14 groups of 12-bit wiring terminals. The indication, port and switch combined module is connected to the wiring terminal through an internal cable. A power supply combination is also connected to the power supply combination, so that a power-up and measurement and control path is formed.

Hardware construction of the transmitter F, ARINC429

According to the ARINC429 data format requirements, the ARINC429 transmitter needs to realize two main functions, namely 1) bipolar level conversion of digital signals and 2) timing control of the signals. The hardware is constructed from these two aspects, respectively.

In the scheme, the bipolar level conversion of the digital signal is realized by adopting two power supply modules and a digital switch. The two direct current 5V power supply modules provide +5V voltage and-5V voltage, and the digital switch adopts CD4052 to realize level output control.

The pin function of the electronic switch CD4052 and the connection relationship applied in this solution are shown in table 1. The logical output relationship is shown in table 2.

Table 1 CD4052 pin functional description

TABLE 2 logical output relationship table

INH	B	A	X output	Y output	Control signal I	Control signal II	a line transmissionGo out	b line output
									0	0	0	X0	Y0		0	0	0V	0V
0	0	1	X1	Y1		1	0	5V											-5V
									0	1	0	X2	Y2		0	1	- 5V	5V
0	1	1	X3	Y3		0	0	0V											0V
									1	*	*	—	—	*	*	—	—

It can be seen that according to the above-mentioned hardware connection relationship, the unipolar digital codes of the control signals I and ii can be converted into bipolar digital codes output by the a-line and the b-line.

And the implementation of the time sequence control, the time sequence control of the scheme is represented by the control of the output relation of the control signal I and the control signal II. The control of these two signals is based on a minimum system of CPLDs. The CPLD minimum system mainly comprises a power supply circuit, a clock/reset circuit and a JTAG program interface circuit on hardware. The circuit diagrams thereof are respectively shown in fig. 7, fig. 8 and fig. 9. The circuit connection diagram given herein takes the EPM7128 chip as an example, and CPLD chips of other models are similar to the same, and the related technical data can be consulted. After the CPLD minimum system is constructed, the timing control mainly depends on the program written inside the CPLD, which is described below.

ARINC429 transmitter software constitutes an overview, and programming inside the CPLD chip is the core content of the transmitter design. The principle is a combinatorial algorithm based on a multi-division technique. Firstly, a basic frequency is constructed, and the basic frequency is obtained by frequency division of an external crystal oscillator frequency. For simplicity of calculation, the fundamental frequency was set to 1M and the period was 1. mu.s. A plurality of base frequency-based divisions, i.e., a plurality of clock cycles, is reconstructed. Then, the preset data word is shifted and output, and the output frequency is controlled by a bit clock. After outputting 32 bits of data, 4 empty data bits are separated, and the next preset data word is output and counted. And after all the data words in the frame data are completely output, the data words are recycled to the first data word for transmission.

The frequency division procedure is implemented, and the external crystal oscillator frequency in the design is 10M as an example. The frequency of the base clock is divided by 10 from the 10M clk signal, i.e. 1M, period 1 μ s. The specific implementation code is as follows:

based on this basic clock, a data bit clock is set again, with a period of 20.83 μ s/2 ═ 10 μ s, a transmit data bit counter, with a total count of (32+4) × 2, and a transmit data word counter, with a total count of N (the number of data words in one frame of data). Code implementations of these clocks and counters refer to the code of the "base clock" with the exception of changing trigger conditions and cycle times.

And the realization of data shift output sets a main cycle program of data shift transmission after the setting work of the clock and the counter is finished. And the main loop program internally nests the judgment of the counting of the sent data bits and the judgment of the counting of the sent data words based on the clock period of the data bits. The transmitted data bit count enables efficient transmission or clear clearing of transmitted bit data, and the transmitted data word count enables selective transmission of word data. The flow chart is shown in fig. 10.

According to the flow chart shown in fig. 7, writing the loop body code can realize the shift output of the data. When data is output, two paths of data, namely a control signal I and a control signal II, need to be output simultaneously, and the control signal II can be obtained by directly inverting the control signal I. The realization of the loop body code still can refer to the code writing of the basic clock, and the difference is that the trigger condition and the loop frequency are changed, and meanwhile, the judgment statement and the sending setting statement are added.

Claims

1. The utility model provides a flight product simulation is hung and is flown and add electrical test equipment which characterized by: the device comprises a measurement and control cabinet, wherein the measurement and control cabinet is composed of a combined module and a power supply combination, and the combined module comprises an indicating component (1), a port component (2) and a switch component (3); the indicating assembly (1) arranged at the upper part of the measurement and control cabinet comprises a counter (1.3), a plurality of voltmeters (1.1) and a plurality of current meters (1.2), and the corresponding current meters (1.2) are arranged below the voltmeters (1.1) of each row; the middle upper part of the cabinet body is provided with a quick-plug connected port assembly (2), and the quick-plug connected port assembly (2) comprises a plurality of rows of quick-plug connecting seats (2.1); a switch component (3) for controlling and indicating is arranged at the middle lower part of the cabinet body, and the switch component (3) for controlling and indicating comprises a component consisting of an indicating lamp (3.1) and a control switch (3.2); the middle lower part of the cabinet body is provided with a front cabinet door; the upper end (5) of the back of the cabinet body is provided with a heat extraction device (5.1), the lower end (8) of the back of the cabinet body is provided with a plurality of cable sockets and an air switch U, and the cable sockets comprise a cable socket X6 and a cable socket X7; a middle upper cabinet door (6) and a middle lower cabinet door (7) are arranged between the upper end (5) of the back of the cabinet body and the lower end (8) of the back of the cabinet body, and a simulated flying power test circuit is arranged in the cabinet body.

2. The simulated airborne electric test equipment of claim 1, wherein: a plurality of three-position and semi-standard digital display meter heads for displaying voltage values and current values are arranged on the front panel of the indicating assembly and are used for monitoring the power supply of a measured product and the current consumption condition of the product in real time; the indication combination front panel is also provided with a first timer which is used for confirming the time in the test process; the port combination front panel is provided with 48 and 1 BNC sockets and 1 indicator light, the sockets are connected with signal lines on an external interface of a tested product and can be connected with various universal instruments to monitor each signal on the external interface; the port combination is internally provided with 11 resistors which are connected to the power supply output end in parallel and used for removing interference.

3. The simulated airborne electric test equipment of claim 1, wherein: the simulated flying power-on test circuit is characterized in that a power supply LN is respectively connected with a +27B1 power supply module U1, a +27B2 power supply module U2, a-27B 1 power supply module U3, a dual power supply module U4, a triple power supply module U5, a counter and a code sender F through an air switch U and a power supply cable L1N1, and the output end of the power supply module U1 is respectively connected with a 4-path output on-off rectifying circuit; the output end of the power supply module U2 is connected with a 1-path output on-off rectification circuit; the output end of the power supply module U3 is connected with the 1-path output on-off negative rectification circuit; the 2-path output end of the power supply module U4 is respectively connected with the 2-path output on-off rectification circuit; the 1 path of the output end of the power supply module U5 is connected with the 1 path of output on-off rectification circuit; and 2 paths and 3 paths of the output end of the power supply module U5 are respectively connected with the 2-path output on-off negative rectification circuit.

4. The simulated airborne electric test equipment of claim 3, wherein: the on-off rectification circuit is connected with a switch K through a fuse by an ammeter, the other end of the switch K is respectively connected with a diode D and an indicator lamp L, the other end of the indicator lamp L is grounded, and the other end of the diode D is an output/input connecting terminal.

5. The simulated airborne electric test equipment of claim 3, wherein: the code sender F is an ARINC429 code sender, one end of the code sender F is connected with an indicator lamp L and is connected with a power cable L1N1 through a switch K; the other end of the indicator light L is grounded, and the other end of the code sender F is a connecting terminal.