Four-way test monitoring device for camera of aircraft cockpit door monitoring system

Abstract

The utility model discloses a four-way test monitoring device for a camera of an aircraft cockpit door monitoring system. The four-way test monitoring device comprises an external power supply module, a power supply control circuit module, four mutually independent video signal interface modules, a video display circuit module and a digital multimeter module, video signals output by the four cameras of the aircraft cockpit door monitoring system to be tested are respectively input to the video display circuit module through the four paths of video signal interface modules; the digital multimeter module respectively measures the power supply voltage of the power supply control circuit module and the working current of the four cameras of the aircraft cockpit door monitoring system to be measured. According to the utility model, monitoring pictures of four cameras of the monitoring system of the aircraft cockpit door to be detected can be monitored at the same time through the video display circuit module, and working currents of the four cameras of the monitoring system of the aircraft cockpit door to be detected can be monitored at the same time through the digital multimeter module. Long-time monitoring and baking of four cameras of the monitoring system of the aircraft cockpit door to be tested can be realized at the same time.

Description

Technical Field

[0001] The utility model relates to camera test equipment, in particular to a four-way test monitoring device for a camera of an aircraft cockpit door monitoring system. Background Art

[0002] The Aircraft Cockpit Door Camera (CDSS) (PN: 8410BX-XX-XXX) is an electronic instrument system (EIS) for Airbus single-aisle (A319 / A320 / A321 families) and long-range (A330 / A340 families) aircraft. Its primary function is to allow pilots to see who is attempting to enter the cockpit, using multiple cameras to view the cockpit entrance from different angles. As part of the Cockpit Door Surveillance System (CDSS), pilots often experience black or flickering screens when observing the cockpit door in mid-flight, making it impossible to monitor the cockpit door. Furthermore, maintenance companies or maintenance and repair services have discovered that prolonged observation of the CDSS cameras may result in black and flickering screens or unstable current flow. Furthermore, the high camera failure rate makes it difficult to manually monitor the cameras in real time for extended periods of time.

[0003] Also, see Figure 1 Because the camera of the aircraft cockpit door monitoring system adopts a special-shaped structure, the existing fixture device is difficult to install and fix it, and cannot meet the requirement that the camera maintains the output of upright images and video signals during the test. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a four-way test monitoring device for a camera of an aircraft cockpit door monitoring system.

[0005] To solve the above technical problems, the technical solutions adopted by the present invention are as follows:

[0006] A four-channel test monitoring device for aircraft cockpit door monitoring system cameras is suitable for simultaneously testing four aircraft cockpit door monitoring system cameras under test. The aircraft cockpit door monitoring system cameras under test can be cameras with part numbers such as the 8410B1 series and the 8410B5 series. The device is characterized by comprising: an external power supply module, a power control circuit module, four independent video signal interface modules, a video display circuit module, and a digital multimeter module.

[0007] The power supply provided by the external power supply module is divided into five independent channels by the power supply control circuit module, one of which is used to supply power to the digital multimeter module, and the external power supply module and the digital multimeter module share a common ground; the remaining four channels are used to supply power to the four video signal interface modules respectively;

[0008] The video signals output by the four cameras of the cockpit door monitoring system of the tested aircraft are respectively input into the video display circuit module through the 4-way video signal interface module, so that the video images captured by the four cameras of the cockpit door monitoring system of the tested aircraft are respectively displayed on the video display circuit module, thereby achieving a long-term test monitoring function;

[0009] The digital multimeter module measures the supply voltage of the power control circuit module and the operating current of four cameras of the cockpit door monitoring system of the tested aircraft respectively.

[0010] Therefore, the utility model can simultaneously monitor the monitoring images of four cameras of the cockpit door monitoring system of the tested aircraft through the video display circuit module, and simultaneously monitor the working current of the four cameras of the cockpit door monitoring system of the tested aircraft through the digital multimeter module, so as to realize long-term monitoring and baking of the four cameras of the cockpit door monitoring system of the tested aircraft at the same time.

[0011] Preferably, the power control circuit module adopts five self-locking power switches with status display lights.

[0012] Preferably, the power supply provided by the external power module is a 12V, 2A power supply.

[0013] Preferably, the digital multimeter module also measures the operating current of the video display circuit module.

[0014] Preferably: the four-channel test monitoring device also includes a mounting rack; the four cameras of the cockpit door monitoring system of the tested aircraft, the external power supply module, the power supply control circuit module, the four independent video signal interface modules, the video display circuit module and the digital multimeter module are all installed on the mounting rack.

[0015] Preferred: such as Figure 1 and Figure 3 As shown, the mounting frame is provided with a base and a plurality of vertical plates vertically fixed on the base, and a total of four semicircular slots are provided on the tops of all the vertical plates;

[0016] The grooves left after the fixing springs of the four cameras of the cockpit door monitoring system of the tested aircraft are respectively clamped and fixed in the four semicircular slots; the external power supply module and the 4-channel video signal interface module are both installed inside the mounting rack; the power control circuit module, the video display circuit module and the digital multimeter module are all installed on the top surface of the mounting rack.

[0017] Preferably: the base is rectangular, and three vertical plates are fixed to the top surface of the base, and the three vertical plates are arranged in sequence, the vertical plate in the middle is arranged at the short side of the base and is provided with two of the semicircular slots, and the remaining two vertical plates are arranged at the long side of the base and are each provided with a semicircular slot, so that the three vertical plates form a concave cavity, and the shooting direction of each camera of the cockpit door monitoring system of the tested aircraft is facing away from the groove, so as to reduce the occupied space of the four-way test monitoring device.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] First, the utility model is provided with an external power supply module, a power supply control circuit module, 4-channel independent video signal interface modules, a video display circuit module and a digital multimeter module. It can simultaneously monitor the monitoring images of four cameras of the cockpit door monitoring system of the tested aircraft through the video display circuit module, and simultaneously monitor the working current of the four cameras of the cockpit door monitoring system of the tested aircraft through the digital multimeter module, so as to realize long-term monitoring and baking of the four cameras of the cockpit door monitoring system of the tested aircraft at the same time.

[0020] Secondly, the utility model adopts the mounting frame 1 to realize the installation and fixation of four cameras of the cockpit door monitoring system of the tested aircraft, which can ensure that the cameras keep outputting upright video image signals during the test process, thereby ensuring the smooth progress of the test. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments:

[0022] Figure 1 This is a structural diagram of the camera of the aircraft cockpit door monitoring system;

[0023] Figure 2 This is a circuit principle block diagram of the four-way test monitoring device of the present utility model;

[0024] Figure 3 It is a structural diagram of the installation frame in the utility model. DETAILED DESCRIPTION

[0025] The present invention is described in detail below in conjunction with the embodiments and the accompanying drawings to help those skilled in the art better understand the utility model concept of the present invention. However, the scope of protection of the claims of the present invention is not limited to the following embodiments. For those skilled in the art, all other embodiments obtained without creative work without departing from the utility model concept of the present invention shall fall within the scope of protection of the present invention.

[0026] like Figure 2As shown, the utility model discloses a four-channel test monitoring device for aircraft cockpit door monitoring system cameras, which is suitable for simultaneously testing four aircraft cockpit door monitoring system cameras under test. The aircraft cockpit door monitoring system cameras under test can be cameras with part numbers such as 8410B1 series and 8410B5 series. The device includes: an external power supply module, a power control circuit module, four independent video signal interface modules, a video display circuit module, and a digital multimeter module.

[0027] The power supply provided by the external power supply module is divided into five independent channels by the power supply control circuit module, one of which is used to supply power to the digital multimeter module, and the external power supply module and the digital multimeter module share a common ground; the remaining four channels are used to supply power to the four video signal interface modules respectively;

[0028] The video signals output by the four cameras of the cockpit door monitoring system of the tested aircraft are respectively input into the video display circuit module through the 4-way video signal interface module, so that the video images captured by the four cameras of the cockpit door monitoring system of the tested aircraft are respectively displayed on the video display circuit module, thereby achieving a long-term test monitoring function;

[0029] The digital multimeter module measures the supply voltage of the power control circuit module and the operating current of four cameras of the cockpit door monitoring system of the tested aircraft respectively.

[0030] Therefore, the utility model can simultaneously monitor the monitoring images of four cameras of the cockpit door monitoring system of the tested aircraft through the video display circuit module, and simultaneously monitor the working current of the four cameras of the cockpit door monitoring system of the tested aircraft through the digital multimeter module, so as to realize long-term monitoring and baking of the four cameras of the cockpit door monitoring system of the tested aircraft at the same time.

[0031] The above is a basic implementation of the present invention, and further optimization, improvement and limitation can be made based on the basic implementation:

[0032] Preferably, the power control circuit module adopts five self-locking power switches with status display lights.

[0033] Preferably, the power supply provided by the external power module is a 12V, 2A power supply.

[0034] Preferably, the digital multimeter module also measures the operating current of the video display circuit module.

[0035] Preferably: the four-channel test monitoring device also includes a mounting rack 1; the four cameras of the cockpit door monitoring system of the tested aircraft, the external power supply module, the power supply control circuit module, the four independent video signal interface modules, the video display circuit module and the digital multimeter module are all installed on the mounting rack 1.

[0036] Preferred: such as Figure 1 and Figure 3 As shown, the mounting frame 1 is provided with a base 1-1 and a plurality of vertical plates 1-2 vertically fixed to the base 1-1, and a total of four semicircular slots 1-2a are provided on the tops of all the vertical plates 1-2;

[0037] The grooves 2a left after the fixing springs of the four cameras 2 of the cockpit door monitoring system of the tested aircraft are respectively clamped and fixed in the four semicircular slots 1-2a; the external power supply module and the 4-channel video signal interface module are both installed inside the mounting rack 1; the power control circuit module, the video display circuit module and the digital multimeter module are all installed on the top surface of the mounting rack 1.

[0038] Preferably: the base 1-1 is rectangular, and three vertical plates 1-2 are fixed on the top surface of the base 1-1, and the three vertical plates 1-2 are arranged in sequence, the vertical plate 1-2 in the middle is arranged at the short side of the base 1-1 and is provided with two semicircular card grooves 1-2a, and the remaining two vertical plates 1-2 are arranged at the long side of the base 1-1 and are each provided with a semicircular card groove 1-2a, so that the three vertical plates 1-2 form a concave cavity, and the shooting direction of each camera 2 of the cockpit door monitoring system of the tested aircraft is facing away from the groove, so as to reduce the occupied space of the four-way test monitoring device.

[0039] The present invention is not limited to the above-mentioned specific implementation methods. According to the above content, in accordance with the common technical knowledge and customary means in this field, without departing from the above-mentioned basic technical ideas of the present invention, the present invention can also make other various forms of equivalent modifications, replacements or changes, all of which fall within the scope of protection of the present invention.

Claims

1. A four-way test monitoring device for aircraft cockpit door monitoring system cameras, suitable for testing four aircraft cockpit door monitoring system cameras simultaneously, characterized in that: include: External power supply module, power supply control circuit module, 4-channel independent video signal interface module, video display circuit module and digital multimeter module; The power supply provided by the external power supply module is divided into five independent channels by the power supply control circuit module, one of which is used to supply power to the digital multimeter module, and the external power supply module and the digital multimeter module share a common ground; the remaining four channels are used to supply power to the four video signal interface modules respectively; The video signals output by the four cameras of the cockpit door monitoring system of the tested aircraft are respectively input into the video display circuit module through the 4-channel video signal interface module, so that the video images captured by the four cameras of the cockpit door monitoring system of the tested aircraft are respectively displayed on the video display circuit module; The digital multimeter module measures the supply voltage of the power control circuit module and the operating current of four cameras of the cockpit door monitoring system of the tested aircraft respectively.

2. The four-way test monitoring device for the camera of the aircraft cockpit door monitoring system according to claim 1 is characterized in that: The power control circuit module adopts five self-locking power switches with status display lights.

3. The four-way test monitoring device for the camera of the aircraft cockpit door monitoring system according to claim 1 is characterized in that: The power supply provided by the external power supply module is 12V, 2A power supply.

4. The four-way test monitoring device for a camera of an aircraft cockpit door monitoring system according to any one of claims 1 to 3, characterized in that: The digital multimeter module also measures the operating current of the video display circuit module.

5. The four-way test monitoring device for a camera of an aircraft cockpit door monitoring system according to any one of claims 1 to 3, characterized in that: The four-channel test monitoring device further comprises a mounting frame (1); the four cameras of the cockpit door monitoring system of the tested aircraft, an external power supply module, a power supply control circuit module, four mutually independent video signal interface modules, a video display circuit module and a digital multimeter module are all mounted on the mounting frame (1).

6. The four-way test monitoring device for the camera of the aircraft cockpit door monitoring system according to claim 5, characterized in that: The mounting frame (1) is provided with a base (1-1) and a plurality of vertical plates (1-2) vertically fixed on the base (1-1), and a total of four semicircular slots (1-2a) are provided on the tops of all the vertical plates (1-2); The grooves (2a) left after the fixing springs of the four cameras (2) of the cockpit door monitoring system of the tested aircraft are removed are respectively clamped and fixed in the four semicircular clamping grooves (1-2a); the external power supply module and the 4-channel video signal interface module are both installed inside the mounting frame (1); and the power supply control circuit module, the video display circuit module and the digital multimeter module are all installed on the top surface of the mounting frame (1).

7. The four-way test monitoring device for a camera of an aircraft cockpit door monitoring system according to claim 6, characterized in that: The base (1-1) is rectangular, and three vertical plates (1-2) are fixed on the top surface of the base (1-1). The three vertical plates (1-2) are arranged in sequence, the vertical plate (1-2) in the middle is arranged at the short side of the base (1-1) and is provided with two semicircular card slots (1-2a), and the remaining two vertical plates (1-2) are arranged at the long side of the base (1-1) and are each provided with a semicircular card slot (1-2a), so that the three vertical plates (1-2) enclose a concave cavity, and the shooting direction of each camera (2) of the cockpit door monitoring system of the aircraft under test is facing away from the groove.

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