An outer ring detection and maintenance device for an airborne central integrated processing unit

Abstract

The utility model relates to an aviation central comprehensive processing unit outer ring detection maintenance equipment belongs to the aircraft test technical field, and this equipment includes the control host computer, interconnection adapter, multichannel serial ports box and DC power pack, is used for the outer ring guarantee test of the task machine of aviation central comprehensive processing unit. The control host computer realizes the control and communication of task machine through various simulation cards and interfaces, the interconnection adapter completes the switching and conditioning of photoelectric signal through the optical fiber adapter box and the telecommunication signal adapter box, the multichannel serial ports box provides the adaptation function of serial ports and discrete signal, and the DC power pack provides 28V and 540V DC power supply for task machine. The system realizes the comprehensive test and fault location of aviation central comprehensive processing unit under the condition of not entering the aircraft test inner field through the modularization, integration design, effectively solves the complicated deployment of inner field equipment, the disorder of line and the complicated process of entering the inner field, improves the outer ring test efficiency and equipment maintenance guarantee ability.

Description

Technical Field

[0001] This utility model relates to the field of aircraft testing technology, specifically to an outer ring testing and maintenance device for an aviation central integrated processing unit. Background Technology

[0002] With the rapid development of aviation technology, aircraft are becoming increasingly digitized and intelligent in their data processing. As a result, aircraft use a central integrated processing unit (CISU) to process signals. The operational quality of the CISU directly affects the stability of the aircraft's communication and control. Therefore, we need to conduct comprehensive testing and verification of the CISU to ensure its equipment stability.

[0003] At present, the comprehensive testing and verification of the aviation central integrated processing unit is mainly carried out in the indoor field. This requires us to enter the aircraft test indoor field to deploy related support equipment. This will result in too much equipment deployment in the indoor field and messy and tangled equipment lines. In addition, some aircraft test indoor fields involve confidential information, and relevant personnel need to report the confidentiality before entering the indoor field, which makes the whole process cumbersome and lengthy.

[0004] Therefore, we need to provide an outer ring testing and maintenance device for aviation central integrated processing units to provide hardware support for the outer ring of aviation central integrated processing units, thereby solving the technical problems of excessive deployment of indoor equipment, messy and tangled equipment lines, and cumbersome and lengthy workflow in current indoor testing. Utility Model Content

[0005] To address the aforementioned technical issues, this utility model provides an outer ring inspection and maintenance device for an aviation central integrated processing unit. This device aims to provide outer ring hardware support for comprehensive testing and verification, thereby enabling the completion of outer ring support for the aviation central integrated processing unit without entering the inner field. This avoids the need for excessive inner field equipment and the cumbersome reporting process for entering the inner field.

[0006] To achieve the above technical objectives, this utility model provides an outer ring inspection and maintenance device for an aviation central integrated processing unit, used for performing support tests on the mission aircraft of the aviation central integrated processing unit, including: The telemetry and control host, used for telemetry and control adjustments of the mission unit, includes a main control module, a 25G / 10G Ethernet optical port card, an 818 optical emulation card, a 1394 emulation card, a USB interface, and a 1000BASE-T network card. The main control module is connected to the 25G / 10G Ethernet optical port card via a PCIe 3.0 link, and to the 818 optical emulation card, 1394 emulation card, and 1000BASE-T network card via PCIe links respectively. It is also connected to the USB interface via a USB link. An interconnect adapter, used for interconnecting and adapting the mission unit, includes a fiber optic adapter box and an electrical signal adapter box; wherein the fiber optic adapter box and the electrical signal adapter box are electrically connected to the telemetry and control host and the mission unit, respectively; A multi-channel serial port box is used for serial port adaptation of the mission unit, including an integrated signal processing module and an XS4 wiring panel; wherein, the integrated signal processing module and the XS4 wiring panel are electrically connected, the integrated signal processing module is electrically connected to the measurement and control host, and the XS4 wiring panel is electrically connected to both the measurement and control host and the mission unit. A DC power supply unit is used to provide DC power to the mission unit, including a 28V DC power supply and a 540V DC power supply; wherein the 28V DC power supply and the 540V DC power supply are electrically connected to the mission unit.

[0007] As a further solution, the mission machine is equipped with an XS interface group, including XS1 interface, XS2 interface, XS3 interface, XS4 interface, XS5 interface, XS6 interface, XS7 interface and XS8 interface.

[0008] As a further solution, the fiber optic adapter box includes 48 LC interfaces and 12 LC interfaces; wherein, One end of the 48-channel LC interface is connected to a 25G / 10G Ethernet optical port card via two 25G / 10G optical communication links, and the other end is connected to the XS5, XS6 and XS7 interfaces of the mission machine via debugging cables. One end of the 12-channel LC interface is connected to the 1394 emulation card via 4-channel 1394B links, and the other end is connected to the XS8 interface of the mission machine via a debugging cable.

[0009] As a further solution, the electrical signal adapter box includes a CNIB code emulation box, two 1000BASE-T network cards, an RS422 emulator, a switch, a discrete output / input control panel, and an AC / DC power supply module; wherein, The electrical signal adapter box is connected to the XS3 interface of the mission machine via a debugging cable; One end of the CNIB code emulation box is connected to the USB interface via a USB link, and the other end is connected to the XS3 interface of the task machine via a synchronization signal link. One end of the two 1000BASE-T network cards is connected to the switch, and the other end is connected to the XS3 interface of the task machine through four 2-core gigabit links. One end of the RS422 emulator is connected to the switch, and the other end is connected to the XS3 interface of the task machine through two RS422 links; One end of the switch is connected to a 1000BASE-T network card via Gigabit Ethernet, and the other end is connected to the XS3 interface of the task machine via a Gigabit Ethernet port. The discrete output / input control panel is connected to the XS3 interface of the task machine via 3 ground / open output links and 4 28V open input links; The AC / DC power module is externally connected to AC220V and provides power to all modules in the electrical signal adapter box.

[0010] As a further solution, the integrated signal processing module of the multi-channel serial port box and the XS4 wiring panel are provided with 20 discrete output links and 48 RS232 links, and are respectively connected to the 1000BASE-T network card through RJ45 interfaces to establish gigabit Ethernet connections; the integrated signal processing module is powered by DC24V through an AC220V adapter, and the XS4 wiring panel is connected to the XS4 interface of the mission machine through a debugging cable.

[0011] As a further solution, one end of the 28V DC power supply is connected to AC220V, and the other end is connected to the XS2 interface of the mission machine through a power circuit; one end of the 540V DC power supply is connected to AC380V, and the other end is connected to the XS1 interface of the mission machine through a power cable.

[0012] As a further solution, a control panel is provided between the 540V DC power supply and the XS1 interface of the mission machine. The control panel is composed of switches K1 and K2 connected in parallel.

[0013] The outer ring inspection and maintenance equipment for an aviation central integrated processing unit provided by this utility model has the following significant advantages: 1. Enable rapid testing and support in outer ring environments: Through integrated hardware design and modular layout, this equipment can directly perform functional testing, fault diagnosis and maintenance verification of aviation central integrated processing units in outer ring environments such as airports and hangars, without the need to enter dedicated indoor areas, avoiding cumbersome confidential reporting procedures, and greatly improving test response speed and equipment maintenance efficiency.

[0014] 2. Compact structure and flexible deployment: The equipment adopts a modular design (control host, interconnection adapter, multi-channel serial port box, DC power supply, etc.). The modules are connected through standardized interfaces. The overall structure is clear and the cable layout is orderly, which effectively solves the problems of equipment stacking and messy wiring in traditional indoor testing, and facilitates transportation, rapid deployment and on-site assembly.

[0015] 3. Comprehensive functions and high test coverage: The system integrates multiple simulation cards (818 optical simulation card, 1394 simulation card, RS422 simulator, etc.) and adapter interfaces, supporting comprehensive simulation and acquisition of various types of signals such as fiber optic, gigabit Ethernet, discrete signals, and serial ports. It can perform integrated testing of key functions such as communication, control, and power supply of the task machine, and achieve accurate fault location and rapid troubleshooting.

[0016] 4. Support for localization and independent control: Key components such as 25G / 10G Ethernet optical port cards and multi-channel serial port processing modules prioritize the use of domestically produced chips and devices. This not only improves the overall performance of the system but also enhances the independent controllability and security of the equipment, which is in line with the development direction of localization of aviation test equipment.

[0017] 5. Stable and reliable power supply system: The DC power supply provides two independent programmable DC outputs of 28V and 540V to adapt to different power supply requirements of the task unit. It has overvoltage and overcurrent protection functions to ensure safe and stable power supply during the test process and avoid equipment damage or test interruption due to power supply problems.

[0018] 6. Enhance comprehensive support capabilities in the outer ring: This equipment can not only be used for routine functional testing, but also support outer ring maintenance operations such as software loading, module replacement, and system upgrades. It significantly enhances the continuous operation and rapid recovery capabilities of the aviation central integrated processing unit in the outer ring environment, which is of positive significance for improving aircraft availability and mission completion rate.

[0019] In summary, this utility model effectively overcomes the problems of complex processes, inconvenient deployment, and low efficiency in existing indoor testing modes, and provides a comprehensive testing support solution with complete functions, clear structure, and applicability to external environments, which has high military, economic and social benefits. Attached Figure Description

[0020] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0021] To more clearly illustrate the technical solutions in the embodiments of this application or related technologies, the accompanying drawings used in the description of the embodiments or related technologies will be briefly introduced below. Obviously, those skilled in the art can obtain other drawings based on these drawings without creative effort.

[0022] Figure 1 A schematic diagram of the outer ring inspection and maintenance equipment for an aviation central integrated processing unit provided by this utility model; Figure 2 A schematic diagram of the front panel of the fiber optic adapter box provided by this utility model; Figure 3 A schematic diagram of the rear panel of the fiber optic adapter box provided by this utility model; The purpose, features, and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0024] Please see Figure 1 This embodiment provides an outer ring inspection and maintenance device for an aviation central integrated processing unit, used for performing support tests on the mission aircraft of the aviation central integrated processing unit, including: The telemetry and control host, used for telemetry and control adjustments of the mission unit, includes a main control module, a 25G / 10G Ethernet optical port card, an 818 optical emulation card, a 1394 emulation card, a USB interface, and a 1000BASE-T network card. The main control module is connected to the 25G / 10G Ethernet optical port card via a PCIe 3.0 link, and to the 818 optical emulation card, 1394 emulation card, and 1000BASE-T network card via PCIe links respectively. It is also connected to the USB interface via a USB link. An interconnect adapter, used for interconnecting and adapting the mission unit, includes a fiber optic adapter box and an electrical signal adapter box; wherein the fiber optic adapter box and the electrical signal adapter box are electrically connected to the telemetry and control host and the mission unit, respectively; A multi-channel serial port box is used for serial port adaptation of the mission unit, including an integrated signal processing module and an XS4 wiring panel; wherein, the integrated signal processing module and the XS4 wiring panel are electrically connected, the integrated signal processing module is electrically connected to the measurement and control host, and the XS4 wiring panel is electrically connected to both the measurement and control host and the mission unit. A DC power supply unit is used to provide DC power to the mission unit, including a 28V DC power supply and a 540V DC power supply; wherein the 28V DC power supply and the 540V DC power supply are electrically connected to the mission unit.

[0025] It should be noted that the outer-loop support equipment for the aviation central integrated processing unit is a key sub-equipment specifically designed for the aviation central integrated processing unit within the outer-loop testing and support system for avionics products. It possesses rapid fault diagnosis, maintenance and upgrade capabilities, and functional verification, ensuring the efficient operation of this core processor in the outer-loop environment. This equipment adopts a modular design and integrates high-precision test interfaces, enabling comprehensive testing of the hardware modules, software systems, and interconnection signals of the aviation central integrated processing unit. It accurately locates faults to the circuit board and supports on-site replacement or repair, significantly reducing troubleshooting time.

[0026] The control unit connects to the interconnect adapter via signal cables, controlling the operation of each module to complete the testing of discrete quantities related to the mission machine and intelligent machine in the aviation central integrated processing unit, as well as various buses, realizing the functional testing and fault location of various finished modules. The test equipment provides the device under test with functions such as signal conversion, signal conditioning, data processing, and data analysis.

[0027] Two 25G / 10G Ethernet optical network cards are included. The 25G / 10G high-performance lossless Ethernet cards are developed using domestically produced and independently controllable DPU chips. They are designed to meet the rapidly growing massive storage and computing needs of airborne systems and are used in high-performance bus network simulation, data acquisition, and monitoring scenarios in the avionics field. They feature complete functions, flexible expansion, and strong compatibility, and have excellent overall performance.

[0028] The 25G / 10G Ethernet optical network card uses domestically produced low-power, high-performance programmable chips to replace imported high-power FPGA chips, thereby reducing product power consumption. This product is a high-performance PCIe network card device with "CPU core + programmable hardware" for forwarding I / O data plane acceleration. While realizing standard network card functions (NIC / TSO), it also provides flexible software definition capabilities to improve host performance, maximize the release of CPU resources, and improve the performance of the entire system.

[0029] Two 818 optical simulation cards, selected as 818-PCIE, are hardware devices used to simulate and test Fibre Channel network communication. These cards implement standard 818 optical protocol processing functions, can communicate with onboard node cards, and provide a simulation testing environment. Through hardware acceleration and protocol simulation technology, they can accurately reproduce the physical layer, data link layer, and upper-layer protocol behavior of 818 optical networks. They support various topologies and rates and provide functions such as traffic injection, error injection, and latency simulation to verify the compatibility, performance, and fault tolerance of network devices.

[0030] The board adopts a baseboard plus core board design, and the baseboard can be replaced according to actual needs. Supported baseboard host interface types include PCIe, PXIe, CPCI, USB2.0, Ethernet, etc. The board can provide up to four fiber optic channels to the outside.

[0031] The 1000BASE-T network card uses the PISEN 1000BASE-T Ethernet card, which is a USB 3.0 to Gigabit Ethernet card. It features high performance, low power consumption, high stability, and high compatibility, supporting 1000Mbps high-speed networks. It supports connection to an industrial control computer (test host) via USB, with each card providing one communication interface and a communication rate of 1000Mbps.

[0032] The 1394 emulation card (optical port) is a hardware tool used to simulate IEEE 1394 interface devices. The card is a standard PCIe full-height half-width board with four 1394 nodes, model number 1394-PCIe-N4-OE. The external signal transmission connector uses a Lemo 9-pin connector, which meets the 1394B communication protocol and can send and receive 1394B network data. It is used for device development, protocol testing, and system compatibility verification. Its core functions include bus communication simulation, data packet generation and analysis, and real-time error injection, meeting the needs of users in development, debugging, and testing scenarios.

[0033] Furthermore, the mission machine is equipped with an XS interface group, including XS1 interface, XS2 interface, XS3 interface, XS4 interface, XS5 interface, XS6 interface, XS7 interface and XS8 interface.

[0034] Furthermore, the fiber optic adapter box includes 48 LC interfaces and 12 LC interfaces; wherein, One end of the 48-channel LC interface is connected to a 25G / 10G Ethernet optical port card via two 25G / 10G optical communication links, and the other end is connected to the XS5, XS6 and XS7 interfaces of the mission machine via debugging cables. One end of the 12-channel LC interface is connected to the 1394 emulation card via 4-channel 1394B links, and the other end is connected to the XS8 interface of the mission machine via a debugging cable.

[0035] The fiber optic adapter box introduces the fiber optic interface of the device under test into the fiber optic adapter box via a fiber optic cable; the fiber optic adapter box provides a fiber optic flange interface, supporting communication with FC communication / monitoring cards via LC to LC patch cords.

[0036] like Figure 2 As shown, the fiber optic adapter box connector is located on the front of the chassis and connects to the optical interface signal connector of the mission machine / smartphone via a test cable; as... Figure 3 As shown, the LC connector is located on the back of the chassis and is used for jumper selection of optical communication signals for the FC communication / FC monitoring card and 1394 emulation card (optical port) of the measurement and control host.

[0037] Furthermore, the electrical signal adapter box includes a CNIB code emulation box, two 1000BASE-T network cards, an RS422 emulator, a switch, a discrete output / input control panel, and an AC / DC power supply module; wherein, The electrical signal adapter box is connected to the XS3 interface of the mission machine via a debugging cable; One end of the CNIB code emulation box is connected to the USB interface via a USB link, and the other end is connected to the XS3 interface of the task machine via a synchronization signal link. One end of the two 1000BASE-T network cards is connected to the switch, and the other end is connected to the XS3 interface of the task machine through four 2-core gigabit links. One end of the RS422 emulator is connected to the switch, and the other end is connected to the XS3 interface of the task machine through two RS422 links; One end of the switch is connected to a 1000BASE-T network card via Gigabit Ethernet, and the other end is connected to the XS3 interface of the task machine via a Gigabit Ethernet port. The discrete output / input control panel is connected to the XS3 interface of the task machine via 3 ground / open output links and 4 28V open input links; The AC / DC power module is externally connected to AC220V and provides power to all modules in the electrical signal adapter box.

[0038] It should be noted that the CNIB code emulation box model is SYN1501. This CNIB code emulation box is a high-precision AC / DC IRIG-B code generation board. It receives external reference time signals such as GNSS satellite / 1PPS / TOD / manual serial port time setting, and generates high-precision AC / DC IRIG-B (DC / AC) code signals, 1PPS (second signal) synchronization pulse signals, and serial port time information, among other clock signals. This IRIG-B code generation board is compatible with multiple IRIG-B code standards such as IEEE1344 / STD200 / DL / T 1100.1-2018, and can also select the Chinese military standard GJB 2991A-2008. It supports setting any IRIG-B code initial time via serial port, facilitating comprehensive testing of devices with IRIG-B code time synchronization functionality.

[0039] The two 1000BASE-T network cards use the AES6202 model of domestic 1000BASE-T1 switches, which support connection to industrial control computers via Ethernet. Each network card supports two RJ45 network ports and two 1000BASE-T1 interface communications with a communication rate of 1000Mbps.

[0040] RS422 Emulator 2 uses the UT-6804 RS-232 / 485 / 422 serial server, connected to the industrial control computer (test host) via Ethernet. It provides four RS422 serial ports with configurable communication rates from 300 to 921600 bps. The UT-6804 serial server supports data conversion between serial terminals and TCP / IP, integrating a TCP / IP protocol stack to achieve bidirectional transparent data transmission between the RS-232 / 485 / 422 serial ports and the TCP / IP network interface, enabling serial devices to network. It integrates protocols such as ARP, IP, TCP, HTTP, ICMP, and UDP. It supports four RS-232 / 485 / 422 serial ports for remote control; one 10 / 100Base-T(x) Ethernet interface with customizable baud rates; and ±4KV electrostatic discharge protection for the serial ports and 1.5KVAC isolation protection for the network ports.

[0041] The switch is a high-performance gigabit switch from Huawei, with a built-in fan that supports port hibernation when there is no connection and intelligent speed adjustment for air cooling. It also features advanced surge protection technology, effectively resisting overvoltage from induced lightning strikes in harsh environments, even in scenarios where effective grounding is impossible, significantly reducing the cumulative damage rate of the equipment. In addition to controlling other devices in the system, the switch can also be connected to the device under test (DUT) to perform Ethernet port testing.

[0042] The discrete input / output control panel is used to implement the discrete input / output simulation function. It uses the CHRU44307 domestic product, adopts a PCI interface, supports 48 channels of discrete input, supports 48 channels of discrete output, and supports configurable 28V / open circuit and 28VGND / open circuit.

[0043] Furthermore, the integrated signal processing module of the multi-channel serial port box and the XS4 wiring panel are provided with 20 discrete output links and 48 RS232 links, and are respectively connected to the 1000BASE-T network card through RJ45 interfaces to establish gigabit Ethernet connections; the integrated signal processing module is powered by DC24V through an AC220V adapter, and the XS4 wiring panel is connected to the XS4 interface of the mission machine through a debugging cable.

[0044] The multi-channel serial port box has a built-in custom-developed integrated signal processing module, which is the domestic model ECAN-U01. This module supports 48 RS232 communication channels and 20 discrete signal output channels, and communicates with the industrial control computer via Ethernet.

[0045] Furthermore, one end of the 28V DC power supply is connected to AC220V, and the other end is connected to the XS2 interface of the mission machine through a power circuit; one end of the 540V DC power supply is connected to AC380V, and the other end is connected to the XS1 interface of the mission machine through a power cable.

[0046] Specifically, the 28V DC power supply uses the N39200 series high-precision dual-channel programmable DC power supply. The N39200 is a high-precision dual-channel programmable wide-range DC power supply with a compact and lightweight design. The N39200 series offers voltage specifications of 60V / 150V, with single-channel power options of 200W / 400W / 600W. Each unit features dual-channel output with inter-channel isolation and supports cascading to expand power output. The N39200 series supports local high-definition touchscreen and button operation, as well as upper-level computer communication control, adapting to various testing environments and widely used in laboratory testing, system integration testing, and production line aging testing.

[0047] Furthermore, a control panel is provided between the 540V DC power supply and the XS1 interface of the mission machine. The control panel is composed of switches K1 and K2 connected in parallel.

[0048] Specifically, the 540V DC power supply uses the PDC7507L from the PDC series. This PDC series of high-precision programmable DC power supplies provides high-precision, high-stability programmable DC voltage and current sources. Designed according to standard rack-mount architecture, this series covers a wide output range from 2000V to 200A, with a height of 1U and a capacity of up to 5kW. It features high power density and light weight.

[0049] The above are only some embodiments of this application and do not limit the patent scope of this application. All equivalent structural transformations made under the technical concept of this application and using the contents of the specification and drawings of this application, or direct / indirect applications in other related technical fields, are included in the patent protection scope of this application.

Claims

1. A testing and maintenance device for the outer ring of an aviation central integrated processing unit, used for performing support tests on the mission unit of an aviation central integrated processing unit, characterized in that, include: The telemetry and control host, used for telemetry and control adjustments of the mission unit, includes a main control module, a 25G / 10G Ethernet optical port card, an 818 optical emulation card, a 1394 emulation card, a USB interface, and a 1000BASE-T network card. The main control module is connected to the 25G / 10G Ethernet optical port card via a PCIe 3.0 link, and to the 818 optical emulation card, 1394 emulation card, and 1000BASE-T network card via PCIe links respectively. It is also connected to the USB interface via a USB link. An interconnect adapter, used for interconnecting and adapting the mission unit, includes a fiber optic adapter box and an electrical signal adapter box; wherein the fiber optic adapter box and the electrical signal adapter box are electrically connected to the telemetry and control host and the mission unit, respectively; A multi-channel serial port box is used for serial port adaptation of the mission unit, including an integrated signal processing module and an XS4 wiring panel; wherein, the integrated signal processing module and the XS4 wiring panel are electrically connected, the integrated signal processing module is electrically connected to the measurement and control host, and the XS4 wiring panel is electrically connected to both the measurement and control host and the mission unit. A DC power supply unit is used to provide DC power to the mission unit, including a 28V DC power supply and a 540V DC power supply; wherein the 28V DC power supply and the 540V DC power supply are electrically connected to the mission unit.

2. The outer ring inspection and maintenance equipment for an aviation central integrated processing unit according to claim 1, characterized in that, The mission machine is equipped with an XS interface group, including XS1 interface, XS2 interface, XS3 interface, XS4 interface, XS5 interface, XS6 interface, XS7 interface and XS8 interface.

3. The outer ring inspection and maintenance equipment for an aviation central integrated processing unit according to claim 2, characterized in that, The fiber optic adapter box includes 48 LC interfaces and 12 LC interfaces; among which... One end of the 48-channel LC interface is connected to a 25G / 10G Ethernet optical port card via two 25G / 10G optical communication links, and the other end is connected to the XS5, XS6 and XS7 interfaces of the mission machine via debugging cables. One end of the 12-channel LC interface is connected to the 1394 emulation card via 4-channel 1394B links, and the other end is connected to the XS8 interface of the mission machine via a debugging cable.

4. The outer ring inspection and maintenance equipment for an aviation central integrated processing unit according to claim 2, characterized in that, The electrical signal adapter box includes a CNIB code emulation box, two 1000BASE-T network cards, an RS422 emulator, a switch, a discrete output / input control panel, and an AC / DC power supply module; wherein... The electrical signal adapter box is connected to the XS3 interface of the mission machine via a debugging cable; One end of the CNIB code emulation box is connected to the USB interface via a USB link, and the other end is connected to the XS3 interface of the task machine via a synchronization signal link. One end of the two 1000BASE-T network cards is connected to the switch, and the other end is connected to the XS3 interface of the task machine through four 2-core gigabit links. One end of the RS422 emulator is connected to the switch, and the other end is connected to the XS3 interface of the task machine through two RS422 links; One end of the switch is connected to a 1000BASE-T network card via Gigabit Ethernet, and the other end is connected to the XS3 interface of the task machine via a Gigabit Ethernet port. The discrete output / input control panel is connected to the XS3 interface of the task machine via 3 ground / open output links and 4 28V open input links; The AC / DC power module is externally connected to AC220V and provides power to all modules in the electrical signal adapter box.

5. The outer ring inspection and maintenance equipment for an aviation central integrated processing unit according to claim 2, characterized in that, The integrated signal processing module of the multi-channel serial port box and the XS4 wiring panel are provided with 20 discrete output links and 48 RS232 links, and are respectively connected to the 1000BASE-T network card through RJ45 interfaces to establish gigabit Ethernet connections; the integrated signal processing module is powered by DC24V through an AC220V adapter, and the XS4 wiring panel is connected to the XS4 interface of the mission machine through a debugging cable.

6. The outer ring inspection and maintenance equipment for an aviation central integrated processing unit according to claim 2, characterized in that, One end of the 28V DC power supply is connected to AC220V, and the other end is connected to the XS2 interface of the mission machine through a power circuit; one end of the 540V DC power supply is connected to AC380V, and the other end is connected to the XS1 interface of the mission machine through a power cable.

7. The outer ring inspection and maintenance equipment for an aviation central integrated processing unit according to claim 6, characterized in that, A control panel is provided between the 540V DC power supply and the XS1 interface of the mission machine. The control panel is composed of switches K1 and K2 connected in parallel.

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