Network switching control system for airborne equipment ground test

Abstract

The utility model relates to the technical field of control systems, in particular to a network switching control system for ground test of airborne equipment, which comprises a main control chip circuit, a signal output end of the main control chip circuit is connected with an MAX4891 chip module, a signal input end of the main control chip circuit is connected with an Ethernet communication interface, and the Ethernet communication interface is connected with a network interface. The main control chip circuit is used for outputting control signals to the whole control system and the MAX4891 chip module by means of control instructions and control logics, the remote automatic switching can be realized, the manual plugging and unplugging of wiring terminals can be replaced, the switching efficiency is greatly improved, the switching accuracy is improved through program control instructions, and the switching efficiency is improved. And the research and development cost and the research and development period of the tested equipment are saved.

Description

Technical Field

[0001] This utility model relates to the field of control system technology, specifically a network switching control system for ground testing of airborne equipment. Background Technology

[0002] Currently, my country's aviation industry is developing rapidly, leading to an increasing demand for airborne products and equipment. Developing a stable and reliable set of airborne equipment is challenging and time-consuming. The development of airborne products and equipment requires extensive ground testing and flight verification of the developed equipment and its interconnection systems. Therefore, there is an urgent need to develop a series of new airborne testing equipment for testing airborne equipment.

[0003] However, at present, there is still a gap between domestic testing equipment for airborne systems and the world's leading level, and much of the airborne testing equipment relies on imports. During the ground testing phase of some airborne equipment, it is necessary to build relevant ground test facilities. The airborne equipment under test needs to communicate with other cross-connected airborne equipment via the ARINC 664 protocol network. Before connecting to the actual cross-connected airborne equipment, using the mature off-the-shelf ARINC 664 test board to connect to the airborne equipment under test can reduce R&D costs and shorten the R&D cycle. Traditionally, when switching signals between the test board and the actual cross-connected equipment, the method is to manually plug and unplug the terminals, which is inefficient and prone to failure. Utility Model Content

[0004] The purpose of this invention is to provide a network switching control system for ground testing of airborne equipment to solve the problems mentioned in the background art.

[0005] The technical solution of this utility model is: a network switching control system for ground testing of airborne equipment, including a main control chip circuit, the signal output terminal of the main control chip circuit is connected to a MAX4891 chip module, the signal input terminal of the main control chip circuit is connected to an Ethernet communication interface, and the main control chip circuit is used to output control signals to the entire control system and the MAX4891 chip module by means of control commands and control logic.

[0006] The MAX4891 chip module is connected to an output A network signal port and an output B network signal port. The MAX4891 chip module is connected to an ARINC 664 interface module for crosslinking equipment and an ARINC 664 test board interface module through the output A network signal port and the output B network signal port, respectively. The MAX4891 chip module is provided with an A port indicator light and a B port indicator light that are connected to the output A port network signal port and the output B port network signal port, respectively.

[0007] The device under test (DUT) has an ARINC 664 interface module. The signal output terminal of the ARINC 664 interface module is connected to the signal input terminal of the MAX4891 chip module. The ARINC 664 interface module is used to access the network signal of the airborne device under test.

[0008] Preferably, the Ethernet communication interface is used to connect to an external industrial control computer or computer to receive control commands from the industrial control computer or computer.

[0009] Preferably, the ARINC 664 interface module of the crosslinking device is used to access the network signal of the airborne device crosslinked with the device under test, and the ARINC 664 test board interface module is used to access the network signal of the ARINC 664 test board.

[0010] This utility model provides an improved network switching control system for ground testing of airborne equipment, which has the following improvements and advantages compared with the prior art:

[0011] In this invention, the device under test (DUT) is connected to the ARINC 664 interface module. An external host computer sends instructions to the control system via an Ethernet communication interface. After receiving the instructions from the host computer, the main control chip controls the MAX4891 chip module to execute them. The ARINC 664 network signal is input from C1. Remote automatic switching replaces manual plugging and unplugging of the terminal blocks, greatly improving switching efficiency. The accuracy of switching is improved through program control instructions, saving the development cost and development cycle of the DUT. Attached Figure Description

[0012] The present invention will be further explained below with reference to the accompanying drawings and embodiments:

[0013] Figure 1 This is a block diagram of a network switching control system for ground testing of airborne equipment.

[0014] The purpose, features, and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0015] The present invention will now be described in detail, and the technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present invention.

[0016] This utility model provides an improved network switching control system for ground testing of airborne equipment. The technical solution of this utility model is as follows:

[0017] In embodiments of this utility model, such as Figure 1 As shown, a network switching control system for ground testing of airborne equipment includes a main control chip circuit. The signal output terminal of the main control chip circuit is connected to a MAX4891 chip module, and the signal input terminal of the main control chip circuit is connected to an Ethernet communication interface. The main control chip circuit is used to output control signals to the entire control system and the MAX4891 chip module based on control commands and control logic. The Ethernet communication interface is used to connect to an external industrial control computer or computer and receive control commands from the industrial control computer or computer.

[0018] The MAX4891 chip module is connected to an output A network signal port and an output B network signal port. The MAX4891 chip module is connected to an ARINC 664 interface module for crosslinking equipment and an ARINC 664 test board interface module through the output A network signal port and the output B network signal port, respectively. The MAX4891 chip module is provided with an A port indicator light and a B port indicator light that are connected to the output A port network signal port and the output B port network signal port, respectively.

[0019] The device under test (DUT) has an ARINC 664 interface module. The signal output terminal of the ARINC 664 interface module is connected to the signal input terminal of the MAX4891 chip module. The ARINC 664 interface module is used to access the network signal of the airborne device under test. The ARINC 664 interface module is used to access the network signal of the airborne device crosslinked with the DUT. The ARINC 664 test board interface module is used to access the network signal of the ARINC 664 test board.

[0020] The working principle of the network switching control system for ground testing of airborne equipment provided by this utility model is as follows: The device under test is connected to the ARINC 664 interface module of the device under test. The external host computer sends instructions to the control system through the Ethernet communication interface. After receiving the instructions from the host computer, the main control chip controls the MAX4891 chip module to execute them. The ARINC664 network signal is input from C1 and output from A1. The signal reaches the crosslinking device through the ARINC 664 interface module of the crosslinking device. At this time, the indicator light of port A lights up. The device under test and the crosslinking device communicate with each other through the ARINC 664 protocol.

[0021] The device under test (DUT) is connected to the ARINC 664 interface module. An external host computer sends commands to the control system via an Ethernet communication interface. After receiving the commands from the host computer, the main control chip controls the MAX4891 chip module to execute them. The ARINC 664 network signal is input from C1 and output from B1. The signal reaches the test board via the ARINC 664 test board interface module. At this time, the indicator light on port B lights up. The DUT and the ARINC 664 test board communicate via the ARINC 664 protocol, using remote automatic switching to replace the manual plugging and unplugging of the terminals.

[0022] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A network switching control system for ground testing of airborne equipment, characterized in that, include: The main control chip circuit has a signal output terminal connected to a MAX4891 chip module and a signal input terminal connected to an Ethernet communication interface. The main control chip circuit is used to output control signals to the entire control system and the MAX4891 chip module based on control commands and control logic. The MAX4891 chip module is connected to an output A network signal port and an output B network signal port. The MAX4891 chip module is connected to an ARINC 664 interface module for crosslinking equipment and an ARINC 664 test board interface module through the output A network signal port and the output B network signal port, respectively. The MAX4891 chip module is provided with an A port indicator light and a B port indicator light that are connected to the output A port network signal port and the output B port network signal port, respectively. The device under test (DUT) has an ARINC 664 interface module. The signal output terminal of the ARINC 664 interface module is connected to the signal input terminal of the MAX4891 chip module. The ARINC 664 interface module is used to access the network signal of the airborne device under test.

2. The network switching control system for ground testing of airborne equipment according to claim 1, characterized in that: The Ethernet communication interface is used to connect to an external industrial control computer or computer to receive control commands from the industrial control computer or computer.

3. The network switching control system for ground testing of airborne equipment according to claim 1, characterized in that: The ARINC 664 interface module of the crosslinking device is used to access the network signal of the airborne equipment crosslinked with the device under test, and the ARINC 664 test board interface module is used to access the network signal of the ARINC 664 test board.

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