Detection device for fuel oil measurement module of aircraft fuel oil measurement subsystem

Abstract

The utility model discloses a detection device for a fuel oil measurement module of an aircraft fuel oil measurement subsystem, which comprises a main body, a power supply control system and an industrial control computer are arranged at the upper part of the main body, and a circuit board interface device, a signal interface box and a communication interface box are arranged at the lower part of the main body; the industrial control computer is respectively connected with the power supply control system, the circuit board interface device, the signal interface box and the communication interface box; the power supply control system is used for providing a working power supply for the fuel oil measuring module and monitoring working information of the power supply; the circuit board interface device is connected with the fuel oil measuring module; the signal interface box is used for providing a signal required by detection for the fuel oil measuring module and detecting a signal output by the fuel oil measuring module; and the communication interface box is used for carrying out information interaction with the fuel oil measuring module and the industrial control computer. According to the utility model, factory acceptance of the fuel oil measuring module can be completed rapidly and accurately, subsequent fault detection and maintenance of the fuel oil measuring module are facilitated, and the fuel oil measuring module inspection device has good practicality.

Description

Technical Field

[0001] The utility model belongs to the technical field of fuel measurement module detection equipment, and particularly relates to a detection device for a fuel measurement module of an aircraft fuel measurement subsystem. Background Art

[0002] The fuel measurement subsystem is an important part of the aircraft fuel system, mainly including a fuel quantity measurement computer, a fuel quantity sensor, a temperature sensor, etc. With the development of technology, the integration degree of aircraft is getting higher and higher. In order to reduce the weight of the aircraft and increase the utilization rate of the aircraft space, the fuel quantity measurement computer is gradually replaced by a fuel measurement module and used nested in other computer systems.

[0003] With the cancellation of the whole fuel quantity measurement computer, the detection and acceptance of the fuel measurement module have become new problems. Since the manufacturers of fuel measurement modules generally produce fuel measurement modules separately and lack computer systems, they cannot conduct a full set of inspections. Secondly, purchasing a computer system as an acceptance platform is very costly, and there are technical barriers between manufacturers. There are too many uncontrollable factors in the inspection process, resulting in great difficulties in the acceptance of fuel measurement modules. Content of the Utility Model

[0004] The purpose of the utility model is to provide a detection device for a fuel measurement module of an aircraft fuel measurement subsystem, aiming to solve the above problems.

[0005] The utility model is mainly realized through the following technical solutions:

[0006] A detection device for a fuel measurement module of an aircraft fuel measurement subsystem, including a main body. A power control system and an industrial control computer are arranged on the upper part of the main body, and a circuit board interface device, a signal interface box and a communication interface box are arranged on the lower part. The industrial control computer is respectively connected with the power control system, the circuit board interface device, the signal interface box and the communication interface box; the power control system is used to provide a working power supply for the fuel measurement module and monitor the working information of the power supply; the circuit board interface device is connected with the fuel measurement module; the signal interface box is used to provide signals required for detection for the fuel measurement module and detect the signals output by the fuel measurement module; the communication interface box is used to perform information interaction with the fuel measurement module and the industrial control computer.

[0007] In order to better realize the utility model, further, the signal interface box includes a discrete quantity output module, a signal detection module, a fuel quantity sensor simulation module, a temperature sensor simulation module and a density sensor simulation module; the communication interface box includes a serial port communication module, a CAN communication module and a 429 communication module.

[0008] To better implement the present utility model, further, the power control system includes a switching power supply module and a power monitoring module.

[0009] To better implement the present utility model, further, the circuit board interface device includes a chassis, a motherboard, and an adapter board. A plurality of connectors are provided on the periphery of the chassis, and the connectors are connected to an industrial control computer through cables. The motherboard is installed in the upper part inside the chassis, and the adapter board is installed on the upper side of the motherboard. The upper and lower sides of the motherboard are respectively connected to the adapter board and the connectors through printed circuit board connection mechanisms. The upper side of the adapter board is connected to the fuel measurement module through an upper connection mechanism on the adapter, and a lower connection mechanism on the adapter corresponding to the motherboard is provided on the lower side of the adapter board.

[0010] To better implement the present utility model, further, a bracket is installed in the upper part inside the chassis, and the periphery of the motherboard is connected to the bracket through positioning pins. Installation strips are respectively provided on the upper periphery inside the chassis, and the bracket is received on the installation strips.

[0011] To better implement the present utility model, further, an installation flange is provided along the periphery of the top of the chassis, and a plurality of installation holes are provided on the installation flange. The installation flange is connected to the main body through the installation holes.

[0012] To better implement the present utility model, further, a man-machine operation platform is provided on the top of the main body. A power control system and an industrial control computer are sequentially arranged on the man-machine operation platform from left to right. The circuit board interface device is installed on the left side of the main body, and a signal interface box and a communication interface box are sequentially installed on the right side of the main body from top to bottom.

[0013] The beneficial effects of the present utility model are as follows:

[0014] (1) The present utility model can quickly and accurately complete the factory acceptance of the fuel measurement module, facilitating subsequent fault detection and repair of the fuel measurement module. The present utility model can separately conduct acceptance inspections on the fuel measurement module, eliminating the need for system inspection items, avoiding the influence of other on-board modules on the inspection results during system inspection, reducing the acceptance process, shortening the acceptance time, improving the detection efficiency and detection cost, and having good practicability;

[0015] (2) The utility model can also be used in the maintenance of fuel measurement modules. During the maintenance or repair of an aircraft, generally, the fault point can only be located at the subsystem level and cannot be accurately located at the board level. The utility model can quickly detect the working state of the fuel measurement module and locate the fault point; the utility model has strong versatility. By replacing the adapter board of the circuit board interface device, it can adapt to fuel measurement modules of different interface types. By making adaptive changes to the detection software, the detection of fuel measurement modules of different interface types can be completed, which has good practicability;

[0016] (3) The utility model has automatic and manual inspection functions. When the fuel measurement module is installed on the detection device, various functions of the fuel measurement module can be automatically inspected. During the detection process, the detection results of each detection item are prompted, and the detection data and results are automatically saved after the detection is completed; during the maintenance or debugging process, it can be manually run step by step, providing conditions for maintenance or debugging and facilitating the use of maintenance or debugging personnel. Description of the Drawings

[0017] Figure 1 is the principle block diagram of the detection device for the fuel measurement module of the aircraft fuel measurement subsystem of the utility model;

[0018] Figure 2 is the structural schematic diagram of the detection device for the fuel measurement module of the aircraft fuel measurement subsystem of the utility model;

[0019] Figure 3 is the structural schematic diagram of the circuit board interface device;

[0020] Figure 4 is the sectional structural schematic diagram of the circuit board interface device.

[0021] Among them: 1 - cabinet, 2 - circuit board interface device, 3 - power control system, 4 - debugging equipment, 5 - industrial control computer, 6 - signal interface box, 7 - communication interface box, 8 - connector, 9 - chassis, 10 - mounting strip, 11 - bracket, 12 - motherboard, 13 - positioning pin, 14 - printed board connection mechanism, 15 - adapter board, 16 - lower connection mechanism for adapter, 17 - upper connection mechanism for adapter. Detailed Implementation Manner

[0022] Embodiment 1:

[0023] A detection device for the fuel measurement module of an aircraft fuel measurement subsystem, as Figure 1 shown, includes an industrial control computer 5, a signal interface box 6, a communication interface box 7, a power control system 3, and a circuit board interface device 2. The detection device is used to provide analog signals such as fuel quantity sensors, temperature sensors, and density sensors to the fuel measurement module and detect the feedback signals of the fuel measurement module to judge the working state of the fuel measurement module.

[0024] The industrial control computer 5 serves as a human-machine interaction platform, which is used to transmit control instructions through the detection software, receive feedback signals and display them. The signal interface box 6 mainly consists of a relay output module, a signal detection module, an oil quantity sensor signal simulation module, a temperature sensor signal simulation module, a density sensor signal simulation module, etc.; the signal interface box 6 is used to provide the signals required for detection to the fuel measurement module and detect the signals output by the fuel measurement module. The communication interface box 7 mainly consists of a serial communication module, a CAN communication module, an ARINC429 communication module, etc.; the communication interface box 7 is used to interact with the fuel measurement module and the industrial control computer 5. The power control system 3 mainly consists of a switching power supply module and an intelligent power meter, and the power control system 3 is used to provide the working power to the fuel measurement module and monitor the working information of the power supply. The circuit board interface device 2 mainly consists of a chassis 9, a mother board 12, an adapter board 15, etc., and the circuit board interface device 2 is used to connect the fuel measurement module to the detection device.

[0025] Embodiment 2:

[0026] A detection device for a fuel measurement module of an aircraft fuel measurement subsystem, as Figure 2 shown, includes a main body. On the top of the main body, a power control system 3, a debugging device 4, and an industrial control computer 5 are sequentially arranged from left to right. On the left side of the main body, a circuit board interface device 2 and a cabinet 1 are sequentially arranged from top to bottom. On the right side of the main body, a signal interface box 6 and a communication interface box 7 are sequentially arranged from top to bottom; each component is connected together through cables for data transmission.

[0027] As Figure 3 and Figure 4 shown, the circuit board interface device 2 includes a connector 8, a chassis 9, a mounting strip 10, a bracket 11, a mother board 12, a positioning pin 13, a printed circuit board connection mechanism 14, an adapter board 15, an adapter lower connection mechanism 16, and an adapter upper connection mechanism 17.

[0028] The connector 8 serves as the signal transmission interface of the circuit board interface device 2 and is connected to the industrial control computer 5 through a cable to achieve signal interconnection between the industrial control computer 5 and the circuit board interface device 2. The chassis 9 serves as the carrier of the circuit board interface device 2, and mounts and fixes components such as the bracket 11 and the motherboard 12 inside it. At the same time, there are mounting holes on the outside for fixing the circuit board interface device 2 on the detection device. There is a mounting strip 10 on each inner side of the chassis 9, which is fixed inside the chassis 9 by screws and plays a role in supporting and fixing the bracket 11. The bracket 11 is a 3-mm-thick hollow aluminum plate, fixed above the mounting strip 10, serving as the mounting carrier of the motherboard 12, playing a role in mounting the motherboard 12 and strengthening, ensuring that the motherboard 12 will not be deformed by force and damaged during the installation of the fuel measurement module. The positioning pin 13 mainly plays a role in positioning and guiding, guiding the adapter board 15 to accurately dock with the motherboard 12. In addition, the positioning pin 13 also has an anti-error function to prevent damage caused by errors of the adapter board 15.

[0029] The motherboard 12 is a customized circuit board assembly, with printed circuit connection mechanisms 14 installed on both the upper and lower sides. They are connected through printed circuits. The printed circuit connection mechanism 14 below is docked with the connector 8 through a cable, and the printed circuit connection mechanism 14 above is docked with the adapter board 15. The adapter board 15 is a customized circuit board assembly, with an upper connection mechanism 17 and a lower connection mechanism 16 installed on the upper and lower sides. The lower connection mechanism 16 and the connector 8 above the motherboard 12 are a pair, and the upper connection mechanism 17 and the connector 8 of the fuel measurement module to be detected are a pair, used for installing the fuel measurement module and performing information interaction with the fuel measurement module. For fuel measurement modules with different functions and interfaces, the corresponding adapter board 15 can be replaced and the corresponding detection software can be selected to achieve the function check of the fuel measurement module. The detection method and detection software of the present utility model are both prior arts and not the improvement points of the present utility model, so they will not be elaborated herein.

[0030] The above is only a preferred embodiment of the present utility model, and does not impose any form of limitation on the present utility model. Any simple modification or equivalent change made to the above embodiments based on the technical essence of the present utility model shall fall within the protection scope of the present utility model.

Claims

1. A detection device for a fuel measurement module of an aircraft fuel measurement subsystem, characterized in that It includes a main body, on the upper part of which there are arranged a power control system (3) and an industrial control computer (5), and on the lower part there are arranged a circuit board interface device (2), a signal interface box (6) and a communication interface box (7). The industrial control computer (5) is respectively connected to the power control system (3), the circuit board interface device (2), the signal interface box (6) and the communication interface box (7). The power control system (3) is used to provide working power for the fuel measurement module and monitor the working information of the power supply. The circuit board interface device (2) is connected to the fuel measurement module. The signal interface box (6) is used to provide signals required for detection for the fuel measurement module and detect the signals output by the fuel measurement module. The communication interface box (7) is used to perform information interaction with the fuel measurement module and the industrial control computer (5).

2. The detection device for the fuel measurement module of an aircraft fuel measurement subsystem according to claim 1, characterized in that, The signal interface box (6) includes a discrete quantity output module, a signal detection module, an oil quantity sensor analog module, a temperature sensor analog module and a density sensor analog module. The communication interface box (7) includes a serial communication module, a CAN communication module and a 429 communication module.

3. The detection device for the fuel measurement module of an aircraft fuel measurement subsystem according to claim 1, characterized in that, The power control system (3) includes a switching power supply module and a power supply monitoring module.

4. A detection device for a fuel measurement module of an aircraft fuel measurement subsystem according to any one of claims 1-3, characterized in that, The circuit board interface device (2) includes a chassis (9), a motherboard (12) and an adapter board (15). A plurality of connectors (8) are arranged on the periphery of the chassis (9), and the connectors (8) are connected to the industrial control computer (5) through cables. The motherboard (12) is installed on the upper part inside the chassis (9), and the adapter board (15) is installed on the upper side of the motherboard (12). The upper and lower sides of the motherboard (12) are respectively connected to the adapter board (15) and the connector (8) through printed circuit board connection mechanisms (14). The upper side of the adapter board (15) is connected to the fuel measurement module through an upper connection mechanism on the adapter (17), and a lower connection mechanism on the adapter (16) corresponding to the motherboard (12) is arranged on the lower side of the adapter board (15).

5. The detection device for the fuel measurement module of an aircraft fuel measurement subsystem according to claim 4, characterized in that A bracket (11) is installed on the upper part inside the chassis (9). The periphery of the motherboard (12) is connected to the bracket (11) through a positioning pin (13). Installation bars (10) are respectively arranged on the upper periphery inside the chassis (9), and the bracket (11) is placed on the installation bars (10).

6. The detection device for the fuel measurement module of an aircraft fuel measurement subsystem according to claim 4, characterized in that, An installation flange is arranged along the periphery of the top of the chassis (9), and a plurality of installation holes are arranged on the installation flange. The installation flange is connected to the main body through the installation holes.

7. The detecting device for the fuel measurement module of an aircraft fuel measurement subsystem according to claim 1, characterized in that, A man-machine operation platform is arranged on the top of the main body. The power control system (3) and the industrial control computer (5) are arranged on the man-machine operation platform from left to right in sequence. The circuit board interface device (2) is installed on the left side of the main body, and the signal interface box (6) and the communication interface box (7) are installed on the right side of the main body from top to bottom in sequence.

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