CN210742415U

CN210742415U - ISFD test bench

Info

Publication number: CN210742415U
Application number: CN201921563081.0U
Authority: CN
Inventors: 胡军; 高春蓉; 覃定华
Original assignee: SICHUAN HAITE HIGH-TECH CO LTD
Current assignee: SICHUAN HAITE HIGH-TECH CO LTD
Priority date: 2019-09-19
Filing date: 2019-09-19
Publication date: 2020-06-12
Anticipated expiration: 2029-09-19

Abstract

The utility model discloses an ISFD test bench, which is connected with a tested component and then used for testing the performance of the tested component, and comprises a test bench body, wherein a panel of the test bench body is provided with a 28VDC voltmeter, a 28VDC ammeter, a plurality of signal control switches, a plurality of signal detection interfaces, a plurality of signal input interfaces, a plurality of signal output interfaces and a 5VAC power supply test hole; a power supply module, a signal input module and a signal output module are arranged in the test board body; the signal input module is connected with the tested piece through a signal control switch or a signal input interface and generates a signal to the tested piece; the power module comprises a 28VDA power circuit externally connected with 220VAC through an XS2 interface on the panel and a 5VDA power circuit externally connected with 115VAC power through an XS3 interface on the panel; the 28VDA power circuit is connected with a 28VDC voltmeter and a 28VDC ammeter; the output signal of the 5VDA power supply circuit is connected with a 5VAC power supply test hole. The utility model provides an ISFD test bench specially used for C16221K bypass integrated flight display; the utility model discloses simple structure, practicality are strong.

Description

ISFD test bench

Technical Field

The utility model relates to an ISFD testboard technical field, specific ISFD testboard that says so.

Background

The ISFD test bench is a special device for finishing C16221K bypass integrated flight display, and the test equipment can provide 28VDC and 5VAC power supplies required by a tested piece, provide discrete magnitude GND input, a two-way 429 signal input interface, a two-way 429 signal output interface, a 1-way 422 signal input interface and a 1-way 422 signal output interface. The user can operate various control switches on the panel of the test board and can effectively complete various performance tests of the ISFD by matching with external instruments and meters.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an ISFD testboard of C16221K bypass integration flight display is exclusively used in.

The utility model discloses a following technical scheme realizes:

the ISFD test bench is connected with a tested component to test the performance of the tested component and comprises a test bench body, wherein a panel of the test bench body is provided with a 28VDC voltmeter, a 28VDC ammeter, a plurality of signal control switches, a plurality of signal detection interfaces, a plurality of signal input interfaces, a plurality of signal output interfaces and a 5VAC power supply test hole;

a power supply module, a signal input module and a signal output module are arranged in the test board body; the signal input module is connected with a tested piece through a signal control switch or a signal input interface and generates a signal to the tested piece;

the power module comprises a 28VDA power circuit externally connected with 220VAC through an XS2 interface on the panel and a 5VDA power circuit externally connected with 115VAC power through an XS3 interface on the panel; the 28VDA power circuit is connected with a 28VDC voltmeter and a 28VDC ammeter; and the output signal of the 5VDA power supply circuit is connected with a 5VAC power supply test hole.

Further, for better realization the utility model discloses, 28VDA power supply circuit includes fuse F1 of being connected with pin 1 of XS1 interface, the double-pole single-throw switch S17 of being connected with pin 2 of fuse F1 output and XS1 interface respectively, the resistance of being connected with double-pole single-throw switch S17 is the first emitting diode of R3, respectively with first emitting diode be connected and the electric current be 1A 'S5 VDA power supply circuit and the electric current be 3A' S28 VDA power supply circuit.

Further, for better realization the utility model discloses, the 28VDA power supply circuit that the electric current is 3A includes that the electric current is 3A 'S28 VDA power, the double-pole single-throw switch S19 of being connected rather than the output, fuse F4 of being connected with double-pole single-throw switch S19, the resistance of being connected with fuse F4 output and double-pole single-throw switch S19 respectively is R4' S second emitting diode, ammeter M2, voltmeter M1 parallelly connected with fuse F4 output.

Further, for better realization the utility model discloses, 5VDA power supply circuit includes fuse F2 of being connected with pin 1 of XS3 interface, the double-pole single-throw switch S18 of being connected with pin 2 of fuse F2 output and XS1 interface respectively, transformer T1 of being connected with double-pole single-throw switch S18 output, fuse F3 of being connected with transformer T1, the third emitting diode that resistance is R5.

Furthermore, in order to better realize the utility model, the signal input module comprises a discrete magnitude signal circuit, an ARINC429 signal circuit and an RS422 signal circuit which are connected with each other;

the input end of the discrete magnitude signal circuit is connected with the tested component through a plurality of signal control switches on the panel and sends a discrete magnitude input signal to the tested component;

the ARINC429 signal circuit is connected with the tested component through a signal input interface on the panel and sends an ARINC429 signal to the tested component;

and the RS422 signal circuit is connected with the tested component through a signal input interface on the panel and sends the RS422 signal circuit to the tested component.

Further, for better realization the utility model discloses, discrete magnitude signal circuit includes Mode select signal circuit, A/C config signal circuit.

Furthermore, in order to better realize the utility model, the signal input interface comprises an ARINC429 signal input interface and an RS422 signal input interface; the signal output interface comprises an ARINC429 signal output interface and an RS422 signal output interface.

Compared with the prior art, the utility model, following advantage and beneficial effect have:

(1) the utility model provides an ISFD test bench specially used for C16221K bypass integrated flight display;

(2) the utility model discloses simple structure, practicality are strong.

Drawings

FIG. 1 is a schematic diagram of the present invention;

FIG. 2 is a circuit diagram of the various circuits of the present invention connected to XS 1;

fig. 3 is a connection diagram of interfaces XS1 and J1 in fig. 1 according to the present invention;

FIG. 4 is a circuit diagram of the conversion of a 220VAC power supply to 28VAC in accordance with the present invention;

fig. 5 is a circuit diagram of the present invention in which 115VAC is transformed to 5 VAC.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

The present invention will be described in further detail with reference to examples, but the present invention is not limited thereto.

Example 1:

the utility model discloses a following technical scheme realizes, as shown in fig. 1-5, the ISFD testboard carries out the test of the subassembly performance of being surveyed after being connected with the subassembly of being surveyed, including the testboard body, be provided with 28VDC voltmeter, 28VDC ampere meter, a plurality of signal control switch, a plurality of signal detection interface, a plurality of signal input interface, a plurality of signal output interface, 5VAC power test hole on the panel of testboard body;

a power supply module, a signal input module and a signal output module are arranged in the test board body; the signal input module is connected with a tested piece through a signal control switch or a signal input interface and generates a signal to the tested piece; the signal output interface or the signal detection interface is used for receiving the related signals sent by the tested piece.

The test bench adopts a manual working mode, can provide 28VDC and 5VAC working power supply required by the tested piece during testing, and provides power supply current and a voltmeter to monitor the power supply. The signal output interface comprises an RS422 signal input interface, an RS422 signal output interface, an ARINC429 signal input interface and an ARINC429 signal output interface, and users can operate various switches on the test table panel and can effectively complete various ISFD performance tests by matching with an external test instrument.

Example 2:

this embodiment is further optimized on the basis of the above-mentioned embodiment, as shown in fig. 3 and 4, further, for better realization of the present invention, the 28VDA power circuit includes a fuse F1 connected to pin 1 of the interface XS1, a double-pole single-throw switch S17 connected to pin 2 of the interface XS1 and the output end of fuse F1, a first light emitting diode connected to double-pole single-throw switch S17 and having a resistance of R3, a 5VDA power circuit connected to the first light emitting diode and having a current of 1A, and a 28VDA power circuit having a current of 3A.

Further, for better realization the utility model discloses, the 28VDA power supply circuit that the electric current is 3A includes that the electric current is 3A 'S28 VDA power, the double-pole single-throw switch S19 of being connected rather than the output, fuse F4 of being connected with double-pole single-throw switch S19, the resistance of being connected with fuse F4 output and double-pole single-throw switch S19 respectively is R4' S second emitting diode, ammeter M2, voltmeter M1 parallelly connected with fuse F4 output. Thereby realizing the purpose of transforming the 220VAC power supply into the 28VAC power supply for supplying power

Other parts of this embodiment are the same as those of the above embodiment, and thus are not described again.

Example 3:

the present embodiment is further optimized based on the above embodiments, as shown in fig. 4, the 5VDA power circuit includes a fuse F2 connected to pin 1 of the interface XS3, a double-pole single-throw switch S18 connected to the output terminal of the fuse F2 and pin 2 of the interface XS1, a transformer T1 connected to the output terminal of the double-pole single-throw switch S18, a fuse F3 connected to the transformer T1, and a third light emitting diode with a resistor R5. Thereby allowing the 115VAC power source to be transformed into a 5VAC power source for power.

The switching power supply outputs 28VDC through a 220VAC input. The other path outputs 5VAC/400HZ power supply through an external 115VAC through a transformer.

Example 4:

the present embodiment is further optimized on the basis of the above embodiments, as shown in fig. 1 to fig. 5, and further, in order to better implement the present invention, the signal input module includes a discrete magnitude signal circuit, an ARINC429 signal circuit, and an RS422 signal circuit, which are connected to each other;

the signal input interface comprises an ARINC429 signal input interface and an RS422 signal input interface; the signal output interface comprises an ARINC429 signal output interface and an RS422 signal output interface.

The input end of the discrete magnitude signal circuit is connected with the tested component through a plurality of signal control switches on the panel and sends a discrete magnitude input signal to the tested component; the tested component receives the discrete magnitude input signal and sends the discrete magnitude input signal to the signal detection interface, and therefore testing of the discrete magnitude signal is conducted.

The ARINC429 signal circuit is connected with the tested component through an ARINC429 signal input interface on the panel and sends an ARINC429 signal to the tested component; the tested component receives the ARINC429 signal and then sends the ARINC429 signal to the RS422 signal output interface;

and the RS422 signal circuit is connected with the tested component through an RS422 signal input interface on the panel and sends the RS422 signal circuit to the tested component. And the tested component receives the RS422 signal and then sends the RS422 signal to the RS422 signal output interface.

The ARINC429 signal is provided by an external signaling instrument.

Example 5:

the present embodiment is further optimized on the basis of the above embodiments, as shown in fig. 2 and fig. 3, and further, in order to better implement the present invention, the discrete magnitude signal circuit includes a Mode select signal circuit and an a/C config signal circuit.

The discrete magnitude signal of the discrete magnitude signal circuit is grounded and connected with 5VAC to input discrete magnitude through a switch control;

Example 6:

the present embodiment is further optimized based on the above embodiments, as shown in fig. 1, the interface definition and the related description

Interface definition

TABLE 1 Back Panel "HCSN-117-01 test Cable" interface definition

Description of the switch

Description of test wells

Test hole	Description of the invention
		A	ARINC INPUT A
W	ARINC INPUT B
		T	ARINC INPUT A
S	ARINC INPUT B
		R	ARINC OUTPUT A
P	ARINC OUTPUT B
		N	ARINC OUTPUT A
M	ARINC OUTPUT B
		L	RS422-E-H
K	RS422-E-L
		J	RS422-S-H
H	RS422-S-L
		G	CHASSIS
F	Initated test

Description of the watch

Watch head	Description of the invention
		M1	28VDC voltage monitoring
M2	28VDC current monitoring

Description of installation and operation

1 conditions of use

1.1 Power supply

An alternating current power supply: 220VAC + -5%/50 Hz + -5%, 1A.

An alternating current power supply: 115VAC + -5%/400 Hz + -5%, 1A.

1.2 Environment

Temperature: -10 ℃ to +50 ℃;

humidity: 10% RH-85% RH;

air pressure: and (4) field voltage.

Indoor fixed points are used in the environment without dust, acid, alkali and other corrosive gases, strong mechanical vibration impact and strong electromagnetic field.

2 step of use

1) Preparation before testing

Step 1: throw all switches of the front panel down. The shop 115VAC power is connected to the test station through a 115VAC power cable. The shop 220VAC power is connected to the test station through a 220VAC power cable.

Step 2: the tested piece is connected to the test bench through the test cable.

2) Testing

And 3, step 3: the shop was turned on with 220VAC, 28VDC and 5VAC power and then tested according to the test procedures on the CMM manual.

3) Test completion

And 4, step 4: throw all switches of the front panel down.

And 5, step 5: all the connecting wires are disconnected, and the equipment is stored according to the regulations.

3 notes on items

1) Before electrifying, all switches of the front panel are confirmed to be in the off position, and careful inspection ensures that no redundant conducting objects such as suspended wires and the like exist on the test board.

2) And (4) the plug of the tested piece is not plugged in and pulled out in a hot-line manner, and all the switches are disconnected or thrown down after the test is finished, so that all the cables are disconnected.

4 verification

4.1 device detection

The equipment was tested according to YMGHCSN-117-YG ISFD test bench acceptance test outline.

4.2 gauge head verification

None.

4.3 check period

The check cycle of the device is once every two years.

5 failure analysis

And (3) power failure:

1) no 5VAC power output: and (4) checking whether the 5VAC power line is broken or not, and whether the transformer and the power switch are damaged or not.

2) No 28VDC power output: and (5) checking whether the 28VDC power line is broken or not, and judging whether the power switch and the switching power supply are damaged or not.

The above is only the preferred embodiment of the present invention, not to the limitation of the present invention in any form, all the technical matters of the present invention all fall into the protection scope of the present invention to any simple modification and equivalent change of the above embodiments.

Claims

The ISFD test bench is connected with a tested component to test the performance of the tested component, and comprises a test bench body, and is characterized in that a panel of the test bench body is provided with a 28VDC voltmeter, a 28VDC ammeter, a plurality of signal control switches, a plurality of signal detection interfaces, a plurality of signal input interfaces, a plurality of signal output interfaces and a 5VAC power supply test hole;

a power supply module, a signal input module and a signal output module are arranged in the test board body; the signal input module is connected with a tested piece through a signal control switch or a signal input interface and generates a signal to the tested piece;

the power module comprises a 28VDA power circuit externally connected with 220VAC through an XS2 interface on the panel and a 5VDA power circuit externally connected with 115VAC power through an XS3 interface on the panel; the 28VDA power circuit is connected with a 28VDC voltmeter and a 28VDC ammeter; and the output signal of the 5VDA power supply circuit is connected with a 5VAC power supply test hole.
2. The ISFD test stand of claim 1, wherein: the 28VDA power circuit comprises a fuse F1 connected with a pin 1 of an XS1 interface, a double-pole single-throw switch S17 respectively connected with an output end of the fuse F1 and a pin 2 of an XS1 interface, a first light-emitting diode with a resistance of R3 connected with the double-pole single-throw switch S17, a 5VDA power circuit with a current of 1A and a 28VDA power circuit with a current of 3A, wherein the 5VDA power circuit is respectively connected with the first light-emitting diode.
3. The ISFD test stand of claim 2, wherein: the 28VDA power supply circuit with the current of 3A comprises a 28VDA power supply with the current of 3A, a double-pole single-throw switch S19 connected with the output end of the power supply, a fuse F4 connected with the double-pole single-throw switch S19, a second light-emitting diode with the resistance R4 respectively connected with the output end of the fuse F4 and the double-pole single-throw switch S19, an ammeter M2 and a voltmeter M1, wherein the ammeter M2 and the voltmeter M1 are connected with the output end of the fuse F4 in parallel.
4. The ISFD test stand of claim 2, wherein: the 5VDA power supply circuit comprises a fuse F2 connected with a pin 1 of an XS3 interface, a double-pole single-throw switch S18 respectively connected with an output end of the fuse F2 and a pin 2 of an XS1 interface, a transformer T1 connected with an output end of a double-pole single-throw switch S18, a fuse F3 connected with a transformer T1, and a third light emitting diode with a resistor R5.
5. The ISFD test stand of claim 4, wherein: the signal input module comprises a discrete magnitude signal circuit, an ARINC429 signal circuit and an RS422 signal circuit which are connected with each other;

the input end of the discrete magnitude signal circuit is connected with the tested component through a plurality of signal control switches on the panel and sends a discrete magnitude input signal to the tested component;

the ARINC429 signal circuit is connected with the tested component through a signal input interface on the panel and sends an ARINC429 signal to the tested component;

and the RS422 signal circuit is connected with the tested component through a signal input interface on the panel and sends the RS422 signal circuit to the tested component.
6. An ISFD test stand according to any of claims 3 to 5, wherein: the discrete quantity signal circuit comprises a Modeselect signal circuit and an A/C config signal circuit.
7. The ISFD test stand of claim 6, wherein: the signal input interface comprises an ARINC429 signal input interface and an RS422 signal input interface; the signal output interface comprises an ARINC429 signal output interface and an RS422 signal output interface.