Novel testing device for ELT control panel

Abstract

The utility model relates to the technical field of equipment testing, in particular to a novel testing device for an ELT control panel, which comprises a to-be-tested panel interface end and a testing interface end. The test interface end comprises a voltage test end 1, a signal test end 1, a voltage test end 2, a voltage test end 3, a signal test end 2, a voltage test end 4 and a voltage test end 5. According to the novel testing device for the ELT control panel, the interface end of the to-be-tested panel is connected with each testing port of the testing interface end, so that voltage input and various output signals on the airplane ELT control panel can be tested, the airplane ELT control panel can be ensured to be input and output, stable operation can be ensured, the testing process is simplified, and the testing efficiency is improved. A set of complete and convenient test equipment is provided for testing the ELT control panel, and the test equipment is convenient to use.

Description

Technical Field

[0001] The utility model relates to the technical field of equipment testing, and particularly relates to a novel testing device for an ELT control panel. Background Art

[0002] An Emergency Locator Transmitter (ELT), also known as an emergency radio, is divided into two types: portable and airborne fixed. When an aircraft undergoes a severe impact or hits water, the ELT device can transmit an emergency signal, and the signal duration is generally not less than 24 hours. The satellite system of the International Satellite Search and Rescue Organization can receive the transmitted emergency signal.

[0003] Currently, before the ELT control panels installed on Boeing B737, B767 aircraft, G7116-01 and G7116-02 aircraft are installed at the factory, various signals output by them need to be ground-tested to ensure that the ELT control panel can operate normally in case of an emergency. The existing testing method is to use corresponding equipment to test when detecting what signals. For example, when detecting whether the 28V voltage input of the panel is normal, a multimeter is used to test the voltage amplitude and current magnitude. When detecting whether the output signal such as the MASTER CAUTION PULSE signal is normal, an oscilloscope is connected for testing. This increases the complexity of the test and is not convenient to use. In view of this, we propose a novel testing device for an ELT control panel. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a novel testing device for an ELT control panel to solve the problems raised in the above background art.

[0005] To achieve the above purpose, the utility model provides the following technical solutions:

[0006] A novel testing device for an ELT control panel includes: an interface end of the panel to be tested and a testing interface end;

[0007] The testing interface end includes:

[0008] The voltage testing end 1 is connected to ports 3 and 4 of the interface end of the panel to be tested;

[0009] The signal testing end 1 is connected to port 1 of the interface end of the panel to be tested. The signal testing end 1 is also connected to ports 2, 5, 8, and 9 of the interface end of the panel to be tested through four branches of a resistor R1. Among them, port 2 is connected to resistor R1 through a single-pole double-throw switch S1 and an indicator light 1; port 5 is connected to resistor R1 through a single-pole double-throw switch S2 and an indicator light 2; port 8 is connected to resistor R1 through a switch S3; port 9 is directly connected to resistor R1;

[0010] The voltage test terminal 2 is connected to port 6 of the interface terminal of the panel under test, and the other switch interfaces of the single-pole double-throw switches S1 and S2 are connected to port 6 of the interface terminal of the panel under test; port 10 of the interface terminal of the panel under test is connected to the voltage test terminal 2 through the resistor R2; port 11 of the interface terminal of the panel under test is connected to the voltage test terminal 2 through the resistor R3;

[0011] The voltage test terminal 3 is connected to port 9 of the interface terminal of the panel under test; and port 12 of the interface terminal of the panel under test is connected to the voltage test terminal 3 through the switch S4;

[0012] The signal test terminal 2 is connected to port 11 of the interface terminal of the panel under test;

[0013] The voltage test terminal 4 is connected to port 13 of the interface terminal of the panel under test;

[0014] The voltage test terminal 5 is connected to port 14 of the interface terminal of the panel under test.

[0015] Preferably, a current test terminal 1 for connecting an ammeter is provided on the voltage test terminal 1;

[0016] A current test terminal 2 for connecting an ammeter is provided on the voltage test terminal 2;

[0017] A current test terminal 3 for connecting an ammeter is provided on the voltage test terminal 4.

[0018] Preferably, the resistance value of the resistor R1 is 100 KΩ; the resistance values of the resistors R2 and R3 are 10 KΩ.

[0019] Compared with the prior art, the beneficial effect of the present utility model is that: for this new test device for the ELT control panel, the interface terminal of the panel under test is connected to each test port of the test interface terminal, which can realize the voltage input and various output signal tests on the aircraft ELT control panel, ensure the stable operation of the input and output of the aircraft ELT control panel, simplify the test process, provide a complete and convenient test device for the test of the ELT control panel, and is easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the present utility model.

[0021] In the figure: J202, voltage test terminal 1; J201, signal test terminal 1; J203, voltage test terminal 2; J204, voltage test terminal 3; J207, signal test terminal 2; J205, voltage test terminal 4; J206, current test terminal 5; J301, current test terminal 1; J303, current test terminal 2; J305, current test terminal 3. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0023] In the description of this patent, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection", "connection", and "setting" should be understood in a broad sense. For example, it can be fixedly connected and set, or detachably connected and set, or integrally connected and set. For those of ordinary skill in the art, the specific meanings of the above terms in this patent can be understood according to specific situations.

[0024] A new type of test device for an ELT control panel, as Figure 1 shown, includes: a panel under test interface end and a test interface end;

[0025] The panel under test interface end includes:

[0026] Ports 3 and 4 are 28V DC input terminals;

[0027] Port 1 is the AURAL CHIME signal output terminal;

[0028] Port 2 is the TST / RST signal output terminal

[0029] Port 5 is the VBAT signal output terminal;

[0030] Port 6 is the 17V DC input terminal;

[0031] Port 8 is the ELT ACT signal output terminal;

[0032] Port 9 is the DC ground terminal;

[0033] Port 10 is the MASTER CAUTION PULSE signal output terminal;

[0034] Port 11 is the MASTER CAUTION STEADY STATE signal output terminal;

[0035] Port 12 is the MASTER LIGTHING TEST signal output terminal;

[0036] Port 13 is the 5V AC input terminal;

[0037] Port 14 is the AC ground terminal.

[0038] The present utility model includes: a panel under test interface end and a test interface end;

[0039] The test interface end includes:

[0040] The voltage test end 1J202 is connected to ports 3 and 4 of the panel under test interface end;

[0041] The signal test end 1J201 is connected to port 1 of the panel under test interface end. The signal test end 1J201 is also connected to ports 2, 5, 8, and 9 of the panel under test interface end through four branches of resistor R1. Among them, port 2 is connected to resistor R1 through a single-pole double-throw switch S1 and an indicator light 1; port 5 is connected to resistor R1 through a single-pole double-throw switch S2 and an indicator light 2; port 8 is connected to resistor R1 through a switch S3; port 9 is directly connected to resistor R1;

[0042] The voltage test end 2J203 is connected to port 6 of the panel under test interface end, and the other switch interfaces of the single-pole double-throw switches S1 and S2 are connected to port 6 of the panel under test interface end; port 10 of the panel under test interface end is connected to the voltage test end 2J203 through a resistor R2; port 11 of the panel under test interface end is connected to the voltage test end 2J203 through a resistor R3;

[0043] The voltage test end 3J204 is connected to port 9 of the panel under test interface end; and port 12 of the panel under test interface end is connected to the voltage test end 3J204 through a switch S4;

[0044] The signal test end 2J207 is connected to port 11 of the panel under test interface end;

[0045] The voltage test end 4J205 is connected to port 13 of the panel under test interface end;

[0046] The voltage test end 5J206 is connected to port 14 of the panel under test interface end.

[0047] Specifically, a current test end 1J301 for connecting an ammeter is provided on the voltage test end 1J202; a current test end 2J303 for connecting an ammeter is provided on the voltage test end 2J203; a current test end 3J305 for connecting an ammeter is provided on the voltage test end 4J205. It is used for measuring the current of 28V DC input, 17V DC input, and 5V AC input.

[0048] Specifically, the resistance value of the resistor R1 is 100KΩ; the resistance values of the resistors R2 and R3 are 10KΩ. It is used for signal stability testing of AURAL CHIME signal, TST / RST signal, VBAT signal, MASTER CAUTION PULSE signal, and MASTERCAUTION STEADYSTATE signal according to test requirements.

[0049] When the new test device for the ELT control panel of this embodiment is in use, the interface end of the panel to be tested can achieve the testing of parameters such as 28V DC input, AURAL CHIME signal output, TST / RST signal, VBAT signal output, 17V DC input, ELT ACT signal output, ELT ON signal output, MASTERCAUTION PULSE signal output, MASTER CAUTION STEADY STATE signal output, MASTER LIGTHINGTEST signal output, 5V AC input, etc. on the aircraft ELT control panel by connecting to each test port of the test interface end, ensuring that the input and output of the aircraft ELT control panel can operate stably, simplifying the test process, providing a complete and convenient test device for the test of the ELT control panel, and being easy to use.

[0050] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and descriptions in the specification are only preferred examples of the present invention and are not used to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A new type of test device for an ELT control panel, characterized in that, Including: The interface end of the panel to be tested and the test interface end; The test interface end includes: The voltage test terminal 1 (J202) is connected to the 3rd and 4th ports of the interface end of the panel to be tested; The signal test terminal 1 (J201) is connected to the 1st port of the interface end of the panel to be tested. The signal test terminal 1 (J201) is also connected to the 2nd, 5th, 8th, and 9th ports of the interface end of the panel to be tested through the resistor R1 in four branches. Among them, the 2nd port is connected to the resistor R1 through the single-pole double-throw switch S1 and the indicator lamp 1; the 5th port is connected to the resistor R1 through the single-pole double-throw switch S2 and the indicator lamp 2; the 8th port is connected to the resistor R1 through the switch S3, and the 9th port is directly connected to the resistor R1; The voltage test terminal 2 (J203) is connected to the 6th port of the interface end of the panel to be tested, and the other switch interfaces of the single-pole double-throw switches S1 and S2 are connected to the 6th port of the interface end of the panel to be tested; the 10th port of the interface end of the panel to be tested is connected to the voltage test terminal 2 (J203) through the resistor R2; the 11th port of the interface end of the panel to be tested is connected to the voltage test terminal 2 (J203) through the resistor R3; The voltage test terminal 3 (J204) is connected to the 9th port of the interface end of the panel to be tested; and the 12th port of the interface end of the panel to be tested is connected to the voltage test terminal 3 (J204) through the switch S4; The signal test terminal 2 (J207) is connected to the 11th port of the interface end of the panel to be tested; The voltage test terminal 4 (J205) is connected to the 13th port of the interface end of the panel to be tested; The voltage test terminal 5 (J206) is connected to the 14th port of the interface end of the panel to be tested.

2. The novel test device for the ELT control panel according to claim 1, wherein: A current test terminal 1 (J301) for connecting an ammeter is provided on the voltage test terminal 1 (J202); A current test terminal 2 (J303) for connecting an ammeter is provided on the voltage test terminal 2 (J203); A current test terminal 3 (J305) for connecting an ammeter is provided on the voltage test terminal 4 (J205).

3. The novel test device for the ELT control panel according to claim 1, characterized in that: The resistance value of the resistor R1 is 100KΩ; the resistance values of the resistors R2 and R3 are 10KΩ.

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