Physical transmission device and method based on single-pair ethernet sensor network

Abstract

This application provides a physical transmission device and method based on a single-pair Ethernet sensor network, applied in the field of Ethernet communication technology. The method includes an airborne test bus master station, a single-pair Ethernet data transmission chain, and an airborne test bus slave station. The airborne test bus master station receives airborne test data acquisition signals and power supply signals sent by the single-pair Ethernet airborne test data acquisition module, and sequentially transmits these signals to the airborne test sensor module via the single-pair Ethernet data transmission chain and the airborne test bus slave station. The airborne test data acquisition signals instruct the airborne test sensor module to acquire sensing information related to airborne testing, and the power supply signals power the airborne test sensor module. The airborne test bus slave station receives the sensing information sent by the airborne test sensor module and sequentially transmits it to the single-pair Ethernet airborne test data acquisition module via the single-pair Ethernet data transmission chain and the airborne test bus master station. This method overcomes the inherent limitations of traditional analog transmission.

Description

Technical Field

[0001] This application relates to the field of Ethernet communication technology, and in particular to a physical transmission device and method based on a single pair of Ethernet sensor networks. Background Technology

[0002] With the increasing integration and digitization of flight testing, original aircraft systems have widely adopted high-speed buses for data exchange. However, airborne test systems, due to their dispersed sensor layout, diverse test parameter types, and inconsistent signal formats, still primarily rely on analog transmission methods. This transmission method results in a large number of cables and a significant increase in overall weight, becoming a key factor restricting the efficiency and overall performance of flight test modifications. Furthermore, analog signals are susceptible to interference during transmission, often requiring special cable structures such as shielding layers and twisted wires to ensure signal integrity, further increasing system complexity and cost. More importantly, the inherent limitations of analog transmission mechanisms mean that sensors can only transmit basic measurement parameters in one direction, unable to achieve advanced functions such as self-sensing of equipment status, remote control, and automated adjustment.

[0003] In summary, how to overcome the inherent limitations of traditional analog transmission and design a new airborne test network transmission architecture with bidirectional communication, intelligent management capabilities, and significantly reduced cable complexity and weight has become an urgent technical problem to be solved. Summary of the Invention

[0004] This application provides a physical transmission device and method based on a single-pair Ethernet sensor network. Employing a bus design with a single-pair Ethernet data transmission chain, it meets the bus-based transmission requirements of sensor networks. Specifically, replacing traditional multi-path analog cables with a single-pair Ethernet data transmission chain saves on sensor cable laying on the aircraft, achieving unified power supply and communication transmission. This fundamentally solves the problems of numerous, heavy, and complex cables. Simultaneously, a fully digital bidirectional communication mechanism replaces traditional separate control and power cables, as well as easily interfered with analog signal transmission, significantly improving signal anti-interference capability, transmission reliability, and communication stability, thereby reducing reliance on special cables. Furthermore, through intelligent bidirectional digital link transmission from the acquisition module to the airborne test sensor module, the airborne test sensor module possesses more intelligent state perception, remote control, and automated adjustment capabilities. This represents a leap from "one-way data acquisition" to "two-way intelligent dialogue" for the airborne test sensor module, enabling networking, sensing, and interconnection of the airborne test sensor module. This is of great significance for the high-quality and efficient completion of flight test verification tasks for the core capabilities of next-generation aircraft.

[0005] This application provides a physical transmission device based on a single-pair Ethernet sensor network, including an airborne test bus master station, a single-pair Ethernet data transmission chain, and an airborne test bus slave station. The airborne test bus master station is connected to both a single-pair Ethernet airborne test data acquisition module and the single-pair Ethernet data transmission chain. The airborne test bus slave station is connected to both the single-pair Ethernet data transmission chain and an airborne test sensor module. The airborne test bus master station receives airborne test data acquisition signals and power supply signals from the single-pair Ethernet airborne test data acquisition module, and transmits these signals to the single-pair Ethernet data transmission chain. The airborne test data acquisition signals instruct the airborne test sensor module to acquire sensing information related to airborne testing, and the power supply signals supply power to the airborne test sensor module.

[0006] The single-pair Ethernet data transmission chain is used to receive the airborne test data acquisition signal and the power supply signal sent by the airborne test bus master station, and to send the airborne test data acquisition signal and the power supply signal to the airborne test bus slave station.

[0007] The airborne test bus slave station is used to receive the airborne test data acquisition signal and the power supply signal sent by the single pair of Ethernet data transmission chains, and to send the airborne test data acquisition signal and the power supply signal to the airborne test sensor module;

[0008] The airborne test bus slave station is also used to receive the sensing information sent by the airborne test sensor module and send the sensing information to the single pair Ethernet data transmission chain;

[0009] The single Ethernet data transmission chain is also used to receive the sensing information sent by the airborne test bus slave station and send the sensing information to the airborne test bus master station.

[0010] The airborne test bus master station is also used to receive the sensing information sent by the single pair of Ethernet data transmission links, and send the sensing information to the single pair of Ethernet airborne test data acquisition module.

[0011] According to an embodiment of this application, a physical transmission device based on a single-pair Ethernet sensor network is provided. The single-pair Ethernet data transmission chain is topologically routed according to the layout of the airborne test sensor module. The single-pair Ethernet data transmission chain simultaneously connects multiple airborne test bus master stations and multiple airborne test bus slave stations. The multiple airborne test bus master stations and the multiple airborne test bus slave stations construct a master-slave structure through the single-pair Ethernet data transmission chain.

[0012] According to an embodiment of this application, a physical transmission device based on a single-pair Ethernet sensor network is provided. The single-pair Ethernet data transmission chain includes a first information transmission bus and a second information transmission bus. The first information transmission bus is used to provide a voltage reference. The second information transmission bus is used to receive the airborne test data acquisition signal and the power supply signal sent by the airborne test bus master station, and the sensing information sent by the airborne test bus slave station. The second information transmission bus is also used to send the airborne test data acquisition signal and the power supply signal to the airborne test bus slave station and to send the sensing information to the airborne test bus master station.

[0013] According to an embodiment of this application, a physical transmission device based on a single-pair Ethernet sensor network is provided. The airborne test bus master station includes transceiver and power supply logic peripheral circuits. These transceiver and power supply logic peripheral circuits are used to receive the airborne test data acquisition signal and the power supply signal sent by the single-pair Ethernet airborne test data acquisition module, and the sensing information sent by the single-pair Ethernet data transmission chain. The transceiver and power supply logic peripheral circuits are also used to send the airborne test data acquisition signal and the power supply signal to the single-pair Ethernet data transmission chain; and to send the sensing information to the single-pair Ethernet airborne test data acquisition module.

[0014] According to an embodiment of this application, a physical transmission device based on a single-pair Ethernet sensor network is provided. The airborne test bus slave station includes a full-bridge rectifier circuit, a resistor divider circuit, and a slave chip. The full-bridge rectifier circuit is used to rectify the received airborne test data acquisition signal and the power supply signal. The resistor divider circuit is used to divide the voltage of the rectified signal to obtain a divided signal, the voltage of which is within a safe operating voltage range. The slave chip is used to operate under the voltage provided by the divided signal and to parse a flight test data acquisition command from the divided signal. The flight test data acquisition command is used to instruct the airborne test sensor module to acquire the sensing information.

[0015] According to an embodiment of this application, a physical transmission device based on a single-pair Ethernet sensor network is provided. The transceiver and power supply logic peripheral circuit includes: a P-MOSFET, a signal control unit, a communication power supply, a signal reading circuit, and a transceiver and power supply logic microcontroller (MCU). The transceiver and power supply logic MCU is used to control the P-MOSFET to be fully turned on under high-level excitation, and to transmit the airborne test data acquisition signal and the power supply signal through the P-MOSFET to the signal control unit and then to the single-pair Ethernet data transmission chain. Under low-level excitation, it turns on the constant current source inside the communication power supply and transmits the constant current source through the signal reading circuit to the signal control unit and then to the single-pair Ethernet data transmission chain.

[0016] According to an embodiment of this application, a physical transmission device based on a single-pair Ethernet sensor network is provided. The transceiver and power supply logic MCU is connected to a Darlington discharge circuit, and the Darlington discharge circuit is connected to the single-pair Ethernet data transmission chain. The transceiver and power supply logic MCU is further configured to send a level control signal to the signal control unit after communication ends. The level control signal instructs the signal control unit to output a low level and activates the Darlington discharge circuit to discharge residual charge in the single-pair Ethernet data transmission chain. The voltage of the residual charge after discharge is less than a preset voltage threshold.

[0017] According to an embodiment of this application, a physical transmission device based on a single-pair Ethernet sensor network is provided. The airborne test bus master station further includes a return code control pin and peripheral components. The return code control pin is used to generate a first return code upon receiving the sensing information and send the first return code to the airborne test bus slave station through the single-pair Ethernet data transmission chain. The peripheral components are used to convert the current signal corresponding to the first return code into a voltage signal and control the level of the return code control pin to be within a safe range.

[0018] According to an embodiment of this application, a physical transmission device based on a single-pair Ethernet sensor network is provided. The airborne test bus slave station further includes a return code transmission pin. The return code transmission pin is used to generate a second return code upon receiving the airborne test data acquisition signal and the power supply signal, and to send the second return code to the airborne test bus master station through the single-pair Ethernet data transmission chain.

[0019] This application also provides a physical transmission method based on a single-pair Ethernet sensor network, applied to the physical transmission device based on a single-pair Ethernet sensor network described in any of the above claims. The physical transmission device includes an airborne test bus master station, a single-pair Ethernet data transmission chain, and an airborne test bus slave station. The airborne test bus master station is connected to both the single-pair Ethernet airborne test data acquisition module and the single-pair Ethernet data transmission chain. The airborne test bus slave station is connected to both the single-pair Ethernet data transmission chain and the airborne test sensor module. The method includes:

[0020] The airborne test bus master station receives the airborne test data acquisition signal and power supply signal sent by the single pair of Ethernet airborne test data acquisition module, and sends the airborne test data acquisition signal and the power supply signal to the single pair of Ethernet data transmission chain. The airborne test data acquisition signal is used to instruct the airborne test sensor module to acquire sensing information related to airborne testing, and the power supply signal is used to power the airborne test sensor module.

[0021] The airborne test data acquisition signal and the power supply signal sent by the airborne test bus master station are received through the single pair Ethernet data transmission link, and the airborne test data acquisition signal and the power supply signal are sent to the airborne test bus slave station.

[0022] The slave station receives the airborne test data acquisition signal and the power supply signal sent by the single pair of Ethernet data transmission links through the airborne test bus, and sends the airborne test data acquisition signal and the power supply signal to the airborne test sensor module.

[0023] The slave station receives the sensing information sent by the airborne test sensor module through the airborne test bus and sends the sensing information to the single pair Ethernet data transmission chain;

[0024] The sensor information sent by the airborne test bus slave station is received through the single pair Ethernet data transmission link, and the sensor information is sent to the airborne test bus master station.

[0025] The airborne test bus master station receives the sensing information sent by the single pair of Ethernet data transmission chains and sends the sensing information to the single pair of Ethernet airborne test data acquisition module.

[0026] This application also provides a non-transitory computer-readable storage medium storing a computer program thereon, which, when executed by a processor, implements the physical transmission method based on a single-pair Ethernet sensor network as described above.

[0027] This application also provides a computer program product, including a computer program that, when executed by a processor, implements the physical transmission method based on a single-pair Ethernet sensor network as described above.

[0028] This application provides a physical transmission device and method based on a single-pair Ethernet sensor network. The device includes an airborne test bus master station, a single-pair Ethernet data transmission chain, and an airborne test bus slave station. The airborne test bus master station is connected to both the single-pair Ethernet airborne test data acquisition module and the single-pair Ethernet data transmission chain. The airborne test bus slave station is connected to both the single-pair Ethernet data transmission chain and the airborne test sensor module. The airborne test bus master station receives airborne test data acquisition signals and power supply signals from the single-pair Ethernet airborne test data acquisition module and transmits these signals to the single-pair Ethernet data transmission chain. The airborne test data acquisition signals instruct the airborne test sensor module to acquire sensing information related to airborne testing, and the power supply signals supply power to the airborne test sensor module. The single-pair Ethernet data transmission chain receives signals from the airborne test bus master station. The system receives the airborne test data acquisition signal and the power supply signal from the single-pair Ethernet data transmission chain, and sends the airborne test data acquisition signal and the power supply signal to the airborne test bus slave station. The airborne test bus slave station is also used to receive the sensing information sent by the airborne test sensor module and send the sensing information to the single-pair Ethernet data transmission chain. The single-pair Ethernet data transmission chain is also used to receive the sensing information sent by the airborne test bus slave station and send the sensing information to the airborne test bus master station. The airborne test bus master station is also used to receive the sensing information sent by the single-pair Ethernet data transmission chain and send the sensing information to the single-pair Ethernet airborne test data acquisition module.By adopting a bus design with a single pair of Ethernet data transmission chains, the bus-based transmission requirements of sensor networks can be met. Specifically, replacing traditional multi-path analog cables with a single pair of Ethernet data transmission chains saves on the laying of sensor cables on the aircraft, and realizes the unified transmission of power supply and communication. This fundamentally solves the problems of large number of cables, heavy weight, and system complexity. At the same time, the adoption of a fully digital bidirectional communication mechanism replaces the traditional separate control cables and power supply cables, and also replaces the easily interfered analog signal transmission, significantly improving signal anti-interference capability and transmission reliability, and greatly improving communication stability, thereby reducing the dependence on special cables. In addition, through intelligent bidirectional digital link transmission from the acquisition module to the airborne test sensor module, the airborne test sensor module has more intelligent status perception, remote control, and automatic adjustment capabilities, realizing a leap from "one-way data acquisition" to "two-way intelligent dialogue" for the airborne test sensor module. This enables the networking, perception, and interconnection of the airborne test sensor module, which is of great significance for the high-quality and efficient completion of the flight test verification mission of the next generation of aircraft core capabilities. Attached Figure Description

[0029] To more clearly illustrate the technical solutions in this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0030] Figure 1 This is a schematic diagram of the physical transmission device based on a single pair of Ethernet sensor networks provided in an embodiment of this application;

[0031] Figure 2 This is a schematic diagram of the physical transmission system based on a single-pair Ethernet sensor network provided in an embodiment of this application;

[0032] Figure 3 This is a schematic diagram of the structure of a single pair of Ethernet data transmission chains provided in an embodiment of this application;

[0033] Figure 4 This is one of the structural schematic diagrams of the airborne test bus master station provided in the embodiments of this application;

[0034] Figure 5 This is a schematic diagram of the structure of the transceiver and power supply logic peripheral circuit provided in the embodiments of this application;

[0035] Figure 6 This is the second schematic diagram of the structure of the airborne test bus master station provided in the embodiments of this application;

[0036] Figure 7This is one of the structural schematic diagrams of the airborne test bus slave station provided in the embodiments of this application;

[0037] Figure 8 This is the second schematic diagram of the structure of the airborne test bus slave station provided in the embodiments of this application;

[0038] Figure 9 This is a flowchart illustrating the physical transmission method based on a single pair of Ethernet sensor networks provided in this application embodiment. Detailed Implementation

[0039] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0040] To better understand the embodiments of this application, the application scenarios of the physical transmission device and method based on a single pair of Ethernet sensor networks provided in this application embodiment will first be described in detail:

[0041] Application scenarios for physical transmission devices and methods based on single-pair Ethernet sensor networks include not only aircraft / aircraft flight testing, but also smart manufacturing and industrial automation, automotive and transportation, building automation and smart buildings, and energy and infrastructure monitoring, as well as any situation that requires connecting a large number of distributed, low-power sensing or control devices through a standardized, lightweight, highly reliable network that can simultaneously transmit data and power.

[0042] The physical transmission device based on a single-pair Ethernet sensor network provided in the embodiments of this application will be described in detail below:

[0043] Figure 1 This is a schematic diagram of the physical transmission device based on a single-pair Ethernet sensor network provided in an embodiment of this application. For example... Figure 1 As shown, the physical transmission device 10 may include an airborne test bus master station 101, a single pair of Ethernet data transmission chains 102, and an airborne test bus slave station 103; the airborne test bus master station 101 is connected to the single pair of Ethernet airborne test data acquisition module and the single pair of Ethernet data transmission chains 102 respectively; the airborne test bus slave station 103 is connected to the single pair of Ethernet data transmission chains 102 and the airborne test sensor module respectively.

[0044] Among them, the airborne test bus master station 101 is used to receive the airborne test data acquisition signal and power supply signal sent by the single pair of Ethernet airborne test data acquisition modules, and send the airborne test data acquisition signal and power supply signal to the single pair of Ethernet data transmission chain 102. The airborne test data acquisition signal is used to instruct the airborne test sensor module to acquire sensing information related to airborne testing, and the power supply signal is used to power the airborne test sensor module.

[0045] The single Ethernet data transmission link 102 is used to receive the airborne test data acquisition signal and power supply signal sent by the airborne test bus master station 101, and send the airborne test data acquisition signal and power supply signal to the airborne test bus slave station 103;

[0046] The airborne test bus slave station 103 is used to receive airborne test data acquisition signals and power supply signals sent by a single pair of Ethernet data transmission links 102, and to send the airborne test data acquisition signals and power supply signals to the airborne test sensor module.

[0047] The airborne test bus slave station 103 is also used to receive sensing information sent by the airborne test sensor module and send the sensing information to the single pair Ethernet data transmission chain 102.

[0048] The single Ethernet data transmission link 102 is also used to receive sensing information sent by the airborne test bus slave station 103 and send the sensing information to the airborne test bus master station 101.

[0049] The airborne test bus master station 101 is also used to receive sensor information sent by the single pair Ethernet data transmission chain 102 and send the sensor information to the single pair Ethernet airborne test data acquisition module.

[0050] Among them, the airborne test bus master station 101 is composed of the smallest unit system consisting of a microcontroller unit (MCU) with an advanced RISC Machines (ARM) architecture and a power airborne test bus master station chip; the single pair of Ethernet data transmission links 102 consists of two information transmission buses; the airborne test bus slave station 103 is composed of the smallest unit system consisting of an ARM architecture MCU and a power airborne test bus slave station chip.

[0051] Among them, the single-pair Ethernet data transmission chain 102 can also be called the two-wire Ethernet 102; the single-pair Ethernet airborne test data acquisition module can also be called the two-wire Ethernet airborne test data acquisition module; and the airborne test sensor module can also be called the intelligent sensor.

[0052] Optionally, the sensing information related to airborne testing may include at least flight performance and aerodynamic data (such as airspeed, sideslip angle, attitude angle), structural load and vibration data (such as displacement, acceleration vibration), propulsion system data (such as engine parameters, thrust), aircraft system data (such as avionics system data, flight control system data, fuel system data), acoustic and thermal data (such as noise, temperature), and environmental and external data (such as atmospheric data, video data of external conditions such as engine, landing gear, and wing icing captured by airborne cameras).

[0053] It should be noted that the aforementioned airborne test data acquisition signals and power supply signals are generated by a single pair of Ethernet airborne test data acquisition modules during flight testing.

[0054] In this embodiment, during flight testing, to meet the requirements of bus-based transmission in the sensor network, a two-wire Ethernet bus design can be adopted. Specifically, the physical transmission device 10 is designed with an airborne test bus master station 101, a single-pair Ethernet data transmission chain 102, and an airborne test bus slave station 103. When the airborne test bus master station 101 receives the airborne test data acquisition signal and power supply signal from the single-pair Ethernet airborne test data acquisition module, it can transmit these signals via the single-pair Ethernet data transmission chain 102 to the airborne test bus slave station 103, which then transmits them to the airborne test sensor module, thus enabling power supply and control of the airborne test sensor module. Conversely, when the airborne test bus slave station 103 receives the sensing information from the airborne test sensor module, it can transmit this sensing information via the single-pair Ethernet data transmission chain 102 to the airborne test bus slave station 103, which then transmits it to the single-pair Ethernet airborne test data acquisition module, thus enabling data transmission between the single-pair Ethernet airborne test data acquisition module and the airborne test sensor module. The entire process employs a bus design with a single pair of Ethernet data transmission chains, replacing traditional multi-path analog cables. Existing airborne test sensor modules are mounted on this single pair of Ethernet data transmission chains 102, saving on sensor cable laying on the aircraft and achieving unified power and communication transmission. This fundamentally solves the problems of numerous, heavy, and complex cables. Simultaneously, a fully digital bidirectional communication mechanism replaces traditional separate control cables (such as flight test data acquisition cables) and power cables, as well as easily interfered with analog signal transmission. This significantly improves signal anti-interference capability and transmission reliability, greatly enhancing communication stability and reducing reliance on special cables. Furthermore, through intelligent bidirectional digital link transmission from the acquisition module to the airborne test sensor module, the airborne test sensor module possesses more intelligent status perception, remote control, and automated adjustment capabilities. This represents a leap from "one-way data acquisition" to "two-way intelligent dialogue," enabling networking, sensing, and interconnection of the airborne test sensor modules. This is of great significance for the high-quality and efficient completion of flight test verification missions for the core capabilities of next-generation aircraft.

[0055] For example, combined Figure 1 , Figure 2 This is a schematic diagram of the physical transmission system based on a single-pair Ethernet sensor network provided in an embodiment of this application. For example... Figure 2As shown, the physical transmission system may include a bus transmission layer, an acquisition subsystem, and a sensor subsystem; the bus transmission layer includes a physical transmission device 10, which includes an airborne test bus master station 101, a single-pair Ethernet data transmission chain 102, and several airborne test bus slave stations 103; the acquisition subsystem includes several single-pair Ethernet airborne test data acquisition modules 20; and the sensor subsystem includes several airborne test sensor modules 30.

[0056] Among them, several single-pair Ethernet airborne test data acquisition modules 20 are connected to the airborne test bus master station 101; the airborne test bus master station 101 is connected to the single-pair Ethernet data transmission chain 102; the single-pair Ethernet data transmission chain is connected to several airborne test bus slave stations 103, and the several airborne test bus slave stations 103 are connected to several airborne test sensor modules 30 in a one-to-one correspondence.

[0057] Combination Figure 2 It can be seen that during flight testing, after generating airborne test data acquisition signals and power supply signals, the single-pair Ethernet airborne test data acquisition module 20 can send these signals to the airborne test sensor module 30 via the airborne test bus master station 101 and the single-pair Ethernet data transmission chain 102 to the airborne test bus slave station 103, thereby enabling power supply and control of the airborne test sensor module 30, such as the acquisition of flight test data. Upon receiving the airborne test data acquisition signals and power supply signals, the airborne test sensor module 30 can collect sensor information related to airborne testing based on the signals and send it to the single-pair Ethernet airborne test data acquisition module 20 via the airborne test bus slave station 103 and the single-pair Ethernet data transmission chain 102 to the airborne test bus slave station 103, thereby enabling data transmission between the single-pair Ethernet airborne test data acquisition module 20 and the airborne test sensor module 30.

[0058] In some embodiments, the single Ethernet data transmission chain 102 is topologically routed according to the layout of the airborne test sensor module 30; combined with Figure 2 It can be seen that a single pair of Ethernet data transmission links 102 can simultaneously connect multiple airborne test bus master stations 101 and multiple airborne test bus slave stations 103; multiple airborne test bus master stations 101 and multiple airborne test bus slave stations 103 construct a master-slave structure through a single pair of Ethernet data transmission links 102.

[0059] In this embodiment, multiple airborne test bus masters 101 and airborne test bus slaves 103 are interconnected through a single pair of Ethernet data transmission links 102, constructing a relatively comprehensive master-slave structure, i.e., a master-slave control network, which enables a bus-based design for sensor interconnection. In other words, this master-slave structure allows multiple masters to work collaboratively, achieving load balancing or redundancy backup, thereby improving the overall reliability of the physical transmission device 10. Furthermore, the unified single-pair Ethernet data transmission link standard ensures interoperability of devices in the network while significantly simplifying wiring complexity, laying the foundation for achieving efficient and stable large-scale industrial sensing systems.

[0060] In some embodiments, Figure 3 This is a schematic diagram of the structure of a single pair of Ethernet data transmission chains provided in an embodiment of this application. For example... Figure 3 As shown, a single Ethernet data transmission chain 102 may include a first information transmission bus 1021 and a second information transmission bus 1022.

[0061] The first information transmission bus 1021 is used to provide a voltage reference.

[0062] The second information transmission bus 1022 is used to receive airborne test data acquisition signals and power supply signals sent by the airborne test bus master station 101, as well as sensing information sent by the airborne test bus slave station 103.

[0063] The second information transmission bus 1022 is also used to send airborne test data acquisition signals and power supply signals to the airborne test bus slave station 103; and to send sensor information to the airborne test bus master station 101.

[0064] In this embodiment, the first information transmission bus 1021 serves as a reference ground line for both power and signals. This allows for a shared ground for both power return and signal reference, effectively reducing the number of cables, significantly simplifying the wiring structure, and lowering the complexity and cost of the physical transmission device 10. The second information transmission bus 1022 serves three purposes: simultaneously acting as a power line, signal transmission line, and signal reception line. It enables data transmission between the airborne test bus master station 101 and the airborne test bus slave station 103. Specifically, the second information transmission bus 1022 receives airborne test data acquisition signals and power supply signals from the airborne test bus master station 101 and forwards them to the airborne test bus slave station 103. Furthermore, it can receive sensor information from the airborne test bus slave station 103 and forward it to the airborne test bus master station 101. This entire process achieves the goal of sharing a bus for airborne test data acquisition signals and power supply signals, reducing cable laying on the aircraft and, to a certain extent, realizing sensor network status perception and flight test data acquisition. In other words, the dual-wire Ethernet design leverages the advantages of low-voltage carrier power supply technology. One information transmission bus serves as the reference ground for power and signals, while the other information transmission bus has three uses: it can simultaneously provide power and communication, has strong anti-interference capabilities, replaces the traditional separate control cable and power supply cable, and significantly improves communication stability.

[0065] It should be noted that the airborne test bus master station 101 transmits and receives data and receives response codes, mainly implementing the following: acquiring the bus DC voltage, 1-to-N (corresponding to N airborne test bus slave stations 103) communication, and bus time synchronization, where N is an integer greater than 0. The airborne test bus slave station 103 transmits and receives data and sends response codes, mainly implementing the following: bus power supply, 1-to-1 (corresponding to one airborne test bus master station 101) communication, and synchronous acquisition of sensor information output by the airborne test sensor module.

[0066] In some embodiments, Figure 4 This is a schematic diagram of the structure of the airborne test bus master station provided in an embodiment of this application. For example... Figure 4 As shown, the airborne test bus master station 101 may include transceiver and power supply logic peripheral circuits 1011.

[0067] Among them, the transceiver and power supply logic peripheral circuit 1011 is used to receive the airborne test data acquisition signal and power supply signal sent by the single pair of Ethernet airborne test data acquisition modules, and the sensing information sent by the single pair of Ethernet data transmission links 102.

[0068] The transceiver and power supply logic peripheral circuit 1011 is also used to send airborne test data acquisition signals and power supply signals to the single-pair Ethernet data transmission chain 102; and to send sensor information to the single-pair Ethernet airborne test data acquisition module.

[0069] In this embodiment, for the airborne test bus master station 101 to transmit and receive data, a master-slave architecture is constructed by multiple airborne test bus master stations 101 and multiple airborne test bus slave stations 103 through a single pair of Ethernet data transmission chains 102. A master station chip's transceiver and power supply logic peripheral circuit 1011 is designed for the airborne test bus master station 101. Specifically, the transceiver and power supply logic peripheral circuit 1011 can receive airborne test data acquisition signals and power supply signals sent by the single pair of Ethernet airborne test data acquisition modules and forward them to the single pair of Ethernet data transmission chains 102. In addition, it can also receive sensor information sent by the single pair of Ethernet data transmission chains 102 and forward it to the single pair of Ethernet airborne test data acquisition modules. That is to say, the transceiver logic peripheral circuit in the transceiver and power supply logic peripheral circuit 1011 can realize the logic control of data transmission and reception, while the power supply control logic peripheral circuit in the transceiver and power supply logic peripheral circuit 1011 can realize constant current source output control.

[0070] In some embodiments, Figure 5 This is a schematic diagram of the structure of the transceiver and power supply logic peripheral circuit provided in the embodiments of this application. For example... Figure 5 As shown, the transceiver and power supply logic peripheral circuit 1011 may include: P-MOSFET 10111, signal control unit 10112, communication power supply 10113, signal reading circuit 10114, and transceiver and power supply logic microcontroller MCU 10115.

[0071] The transceiver and power supply logic MCU 10115 is used to control the P-MOSFET 10111 to be fully turned on when the excitation level is high, and to send the airborne test data acquisition signal and power supply signal to the signal control unit 10112 through the P-MOSFET 10111 and then to the single pair Ethernet data transmission chain 102. When the excitation level is low, it turns on the constant current source inside the communication power supply 10113 and sends the constant current source to the signal control unit 10112 through the signal reading circuit 10114 and then to the single pair Ethernet data transmission chain 102.

[0072] from Figure 5 As can be seen, the P-MOSFET 10111 and the communication power supply 10113 are both connected to a single pair of Ethernet airborne test data acquisition modules; the signal control unit 10112 is connected to a single pair of Ethernet data transmission links 102.

[0073] In this embodiment, the transceiver and power supply logic MCU 10115 can control the P-MOSFET 10111 via pins. Specifically, under high-level excitation, the P-MOSFET 10111 is fully turned on, and the DC power supply is transmitted through the P-MOSFET 10111 to the signal control unit 10112 to output a full-amplitude DC voltage to the airborne test bus master station 101 and the airborne test bus slave station 103, completing the power supply and pulse width modulation (PWM) of the "voltage transmission" stage. Modulation (PWM) data (i.e., power supply signal and airborne test data acquisition signal) is transmitted. Under low-level excitation, the control P-MOSFET 10111 is turned off. At this time, the high voltage of the single pair of Ethernet data transmission chains 102 is immediately removed. At this time, the transceiver and power supply logic MCU 10115 automatically switches to the "receive window" and turns on the constant current source (e.g., 15V, 30mA) inside the communication power supply 10113 through the above-mentioned pin. This constant current source is transmitted to the signal control unit 10112 through the signal reading circuit 10114 to the single pair of Ethernet data transmission chains 102 for temporary pull-up, forming a relatively safe and stable "communication level". This provides the necessary working bias for the "current feedback" of the airborne test bus slave station 103. At the same time, the differential sampling terminal in the transceiver and power supply logic MCU 10115 can accurately detect the current change at the level of 0~20mA through the signal reading circuit 10114, realizing the demodulation of the data on the single pair of Ethernet data transmission chains 102.

[0074] In some embodiments, the transceiver and power supply logic MCU 10115 is connected to a Darlington discharge circuit, which is connected to a single pair of Ethernet data transmission chains 102.

[0075] The transceiver and power supply logic MCU10115 is also used to send a level control signal to the signal control unit 10112 after the communication ends. The level control signal instructs the signal control unit 10112 to output a low level and start the Darlington discharge circuit to discharge the residual charge in the single pair of Ethernet data transmission chains 102. The voltage of the residual charge after discharge is less than the preset voltage threshold.

[0076] In this case, if the power of the Darlington discharge circuit is greater than the preset power threshold, then the Darlington discharge circuit is a high-power Darlington discharge circuit.

[0077] In this embodiment, after communication ends, the transceiver and power supply logic MCU10115 sends a level control signal to the signal control unit 10112 to pull down the output level of the signal control unit 10112 and start the Darlington discharge circuit to discharge the residual charge in the single pair of Ethernet data transmission links 102 and the filter capacitor within tens of milliseconds until the voltage of the residual charge after discharge is less than a preset voltage threshold (such as 1V), ensuring that the device connected to the single pair of Ethernet data transmission links 102 can be hot-plugged without arcing or impact.

[0078] In some embodiments, Figure 6 This is a schematic diagram of the structure of the airborne test bus master station provided in an embodiment of this application. For example... Figure 6 As shown, the airborne test bus master station 101 may also include a return code control pin 1012 and peripheral components 1013;

[0079] The return code control pin 1012 is used to generate the first return code when receiving sensing information, and send the first return code to the airborne test bus slave station 103 through a single pair of Ethernet data transmission links 102.

[0080] The peripheral component 1013 is used to convert the current signal corresponding to the first echo code into a voltage signal and control the level of the echo code control pin 1012 to be within a safe range.

[0081] In this embodiment, the echo code is transmitted to the airborne test bus slave station 103. When the echo code control pin 1012 in the airborne test bus master station 101 receives the sensing information sent by the single pair of Ethernet data transmission chains 102, it generates a first echo code in order to provide a response feedback to the airborne test bus slave station 103. The first echo code is then sent to the airborne test bus slave station 103 through the single pair of Ethernet data transmission chains 102, realizing an effective communication handshake between the bus master and slave stations. In addition, the peripheral component 1013 converts the current signal corresponding to the first echo code into a voltage signal and controls the level of the echo code control pin 1012 to be within a safe range. The whole process ensures that the echo code signal is accurately acquired while providing reliable electrical protection for the master station chip, taking into account both the accuracy of communication and the robustness of the system.

[0082] In some embodiments, Figure 7 This is a schematic diagram of the structure of the airborne test bus slave station provided in an embodiment of this application. For example... Figure 7 As shown, the airborne test bus slave station 103 may include a full-bridge rectifier circuit 1031, a resistor voltage divider circuit 1032, and a slave chip 1033.

[0083] Among them, the full-bridge rectifier circuit 1031 is used to rectify the received airborne test data acquisition signal and power supply signal;

[0084] The resistor voltage divider circuit 1032 is used to divide the voltage of the rectified signal to obtain a divided signal. The voltage of the divided signal is within the safe operating voltage range.

[0085] The slave chip 1033 is used to operate under the voltage provided by the voltage-divided signal and to parse the flight test data acquisition command from the voltage-divided signal. The flight test data acquisition command is used to instruct the airborne test sensor module 30 to acquire sensing information.

[0086] In this embodiment, for the airborne test bus slave station 103 to transmit and receive data, in conjunction with the aforementioned master-slave architecture, a full-bridge rectifier circuit 1031, a resistor divider circuit 1032, and a slave chip 1033 are designed for the airborne test bus slave station 103. Specifically, the full-bridge rectifier circuit 1031 rectifies the received airborne test data acquisition signal and power supply signal, enabling polarity-free wiring, meaning that there is no need to distinguish between positive and negative terminals during connection. This greatly simplifies the operation process for on-site construction personnel, avoids equipment damage or installation errors caused by reverse polarity connection, and significantly improves the efficiency and reliability of large-scale cable deployment. It is particularly suitable for rapid installation and maintenance in complex or confined spaces. The resistor divider circuit 1032 further divides the voltage of the rectified signal to obtain a divided signal, which is then sent to the slave station. Chip 1033, with its voltage divided to a level within a safe operating voltage range, effectively and efficiently solves the local power supply problem for the slave chip, eliminating the need for an additional step-down power supply module. Furthermore, by converting the high-voltage signal to a standard logic level, it provides a clean, overvoltage-free signal reference for subsequent demodulation, ensuring the safety and stability of slave chip 103. Upon receiving the divided signal, slave chip 1033 can demodulate it, operating at the voltage provided by the signal, and extract flight test data acquisition commands from it. This enables synchronous transmission of power and data on the same pair of lines, facilitating subsequent acquisition of sensing information by the onboard test sensor module 30. This lays the foundation for building a truly distributed, addressable intelligent sensor network. In summary, through a concise hardware design, complex power management and data communication functions are highly integrated, giving the slave device key characteristics of plug-and-play, safety, reliability, and intelligent response.

[0087] In some embodiments, Figure 8 This is a schematic diagram of the structure of the airborne test bus slave station provided in an embodiment of this application. For example... Figure 8 As shown, the airborne test bus slave station 103 may also include a return code transmission pin 1034;

[0088] The echo code transmission pin 1034 is used to generate a second echo code upon receiving the airborne test data acquisition signal and the power supply signal, and to send the second echo code to the airborne test bus master station 101 through a single pair of Ethernet data transmission links 102.

[0089] In this embodiment, the airborne test bus master station 101 receives the return code. When the return code sending pin 1034 in the airborne test bus slave station 103 receives the airborne test data acquisition signal and power supply signal sent by the single pair Ethernet data transmission chain 102, in order to respond and provide feedback to the airborne test bus master station 101, it will generate a second return code and send the second return code to the airborne test bus master station 101 through the single pair Ethernet data transmission chain 102 to realize the communication handshake between the bus master and slave stations.

[0090] It should be noted that, Figures 1-8 The architecture shown is a master-slave design using an airborne test bus master station 101 and an airborne test bus slave station 103. The airborne test bus master station 101 is responsible for receiving data and feedback codes from the airborne test sensor modules and sending corresponding control commands (such as sending data acquisition commands). The master-slave station 103 is responsible for sending data and feedback codes from the airborne test sensor modules, receiving commands and sending them back to the airborne test sensor modules, ultimately achieving the acquisition and effective control of the intelligent sensor status, and realizing the sensor network design on the aircraft. Furthermore, considering that the airborne test sensor modules can only transmit basic measurement parameters unidirectionally and cannot achieve advanced functions such as self-sensing of device status, remote control, and automated adjustment, [further details are needed]. Figures 1-8 Each of the physical transmission devices shown has the ability to upload sensor status perception data and issue flight test data acquisition commands, thus building an interactive bridge between the acquisition subsystem and the sensor subsystem.

[0091] The physical transmission method based on a single pair of Ethernet sensor networks provided in the embodiments of this application will be described in detail below. The physical transmission method based on a single pair of Ethernet sensor networks described below and the physical transmission device based on a single pair of Ethernet sensor networks described above can be referred to in correspondence.

[0092] Figure 9 This is a schematic flowchart illustrating the physical transmission method based on a single-pair Ethernet sensor network provided in an embodiment of this application. Figure 9 As shown, this method is applied to, for example Figures 1-8Any of the physical transmission devices based on a single-pair Ethernet sensor network shown herein includes an airborne test bus master station, a single-pair Ethernet data transmission chain, and an airborne test bus slave station; the airborne test bus master station is connected to the single-pair Ethernet airborne test data acquisition module and the single-pair Ethernet data transmission chain respectively; the airborne test bus slave station is connected to the single-pair Ethernet data transmission chain and the airborne test sensor module respectively; the method includes the following steps 901-906.

[0093] Step 901: Receive the airborne test data acquisition signal and power supply signal sent by the single pair of Ethernet airborne test data acquisition modules through the airborne test bus master station, and send the airborne test data acquisition signal and power supply signal to the single pair of Ethernet data transmission links. The airborne test data acquisition signal is used to instruct the airborne test sensor module to acquire sensing information related to airborne testing, and the power supply signal is used to power the airborne test sensor module.

[0094] Step 902: Receive the airborne test data acquisition signal and power supply signal sent by the airborne test bus master station through a single pair of Ethernet data transmission links, and send the airborne test data acquisition signal and power supply signal to the airborne test bus slave station.

[0095] Step 903: Receive the airborne test data acquisition signal and power supply signal sent by the single pair of Ethernet data transmission links through the airborne test bus slave station, and send the airborne test data acquisition signal and power supply signal to the airborne test sensor module.

[0096] Step 904: Receive the sensing information sent by the airborne test sensor module from the slave station via the airborne test bus, and send the sensing information to the single-pair Ethernet data transmission chain.

[0097] Step 905: Receive sensor information sent by the airborne test bus slave station via a single Ethernet data transmission link, and send the sensor information to the airborne test bus master station.

[0098] Step 906: Receive the sensor information sent by the single pair Ethernet data transmission chain through the airborne test bus master station, and send the sensor information to the single pair Ethernet airborne test data acquisition module.

[0099] In this embodiment, the technical solution described in steps 901-906 above adopts a bus design with a single pair of Ethernet data transmission chains, which can meet the bus-based transmission requirements of sensor networks. Specifically, replacing traditional multi-path analog cables with a single pair of Ethernet data transmission chains can save on the laying of sensor cables on the aircraft, realize the unified transmission of power supply and communication, and fundamentally solve the problems of large number of cables, heavy weight, and complex systems. At the same time, a fully digital bidirectional communication mechanism is adopted, replacing the traditional separate control cables and power supply cables, and also replacing the easily interfered analog signal transmission, significantly improving the signal anti-interference capability and transmission reliability, and greatly improving communication stability, thereby reducing the dependence on special cables. In addition, through the intelligent bidirectional digital link transmission from the acquisition module to the airborne test sensor module, the airborne test sensor module has more intelligent status perception, remote control, and automatic adjustment capabilities, realizing the leap from "one-way data acquisition" to "two-way intelligent dialogue" of the airborne test sensor module, thereby realizing the networking, perception, and interconnection of the airborne test sensor module, which is of great significance for the high-quality and efficient completion of the flight test verification mission of the next generation of aircraft core capabilities.

[0100] On the other hand, embodiments of this application also provide a computer program product, which includes a computer program that can be stored on a non-transitory computer-readable storage medium. When the computer program is executed by a processor, the computer is able to execute the physical transmission method based on a single pair of Ethernet sensor networks provided by the above methods.

[0101] In another aspect, embodiments of this application also provide a non-transitory computer-readable storage medium storing a computer program thereon, which, when executed by a processor, is implemented to perform the physical transmission method based on a single-pair Ethernet sensor network provided by the methods described above.

[0102] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs. Those skilled in the art can understand and implement this without any creative effort.

[0103] Through the above description of the embodiments, those skilled in the art can clearly understand that each embodiment can be implemented by means of software plus necessary general-purpose hardware platforms, and of course, it can also be implemented by hardware. Based on this understanding, the above technical solutions, in essence or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product can be stored in a computer-readable storage medium, such as ROM / RAM, magnetic disk, optical disk, etc., and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute the methods described in the various embodiments or some parts of the embodiments.

[0104] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. A physical transmission device based on a single-pair Ethernet sensor network, characterized in that, It includes an airborne test bus master station, a single pair of Ethernet data transmission chains, and an airborne test bus slave station; the airborne test bus master station is connected to both the single pair of Ethernet airborne test data acquisition modules and the single pair of Ethernet data transmission chains; the airborne test bus slave station is connected to both the single pair of Ethernet data transmission chains and the airborne test sensor module; wherein... The airborne test bus master station is used to receive the airborne test data acquisition signal and power supply signal sent by the single pair of Ethernet airborne test data acquisition modules, and send the airborne test data acquisition signal and the power supply signal to the single pair of Ethernet data transmission links. The airborne test data acquisition signal is used to instruct the airborne test sensor module to acquire sensing information related to airborne testing, and the power supply signal is used to power the airborne test sensor module. The single-pair Ethernet data transmission chain is used to receive the airborne test data acquisition signal and the power supply signal sent by the airborne test bus master station, and to send the airborne test data acquisition signal and the power supply signal to the airborne test bus slave station. The airborne test bus slave station is used to receive the airborne test data acquisition signal and the power supply signal sent by the single pair of Ethernet data transmission chains, and to send the airborne test data acquisition signal and the power supply signal to the airborne test sensor module; The airborne test bus slave station is also used to receive the sensing information sent by the airborne test sensor module and send the sensing information to the single pair Ethernet data transmission chain; The single Ethernet data transmission chain is also used to receive the sensing information sent by the airborne test bus slave station and send the sensing information to the airborne test bus master station. The airborne test bus master station is also used to receive the sensing information sent by the single pair Ethernet data transmission chain, and send the sensing information to the single pair Ethernet airborne test data acquisition module.

2. The physical transmission device based on a single-pair Ethernet sensor network according to claim 1, characterized in that, The single pair of Ethernet data transmission chains are topologically routed according to the layout of the airborne test sensor modules; the single pair of Ethernet data transmission chains simultaneously connects multiple airborne test bus master stations and multiple airborne test bus slave stations; the multiple airborne test bus master stations and the multiple airborne test bus slave stations construct a master-slave structure through the single pair of Ethernet data transmission chains.

3. The physical transmission device based on a single-pair Ethernet sensor network according to claim 1 or 2, characterized in that, The single Ethernet data transmission chain includes a first information transmission bus and a second information transmission bus; wherein... The first information transmission bus is used to provide a voltage reference. The second information transmission bus is used to receive the airborne test data acquisition signal and the power supply signal sent by the airborne test bus master station, and the sensing information sent by the airborne test bus slave station; The second information transmission bus is also used to send the airborne test data acquisition signal and the power supply signal to the airborne test bus slave station; and to send the sensing information to the airborne test bus master station.

4. The physical transmission device based on a single-pair Ethernet sensor network according to claim 2, characterized in that, The airborne test bus master station includes transceiver and power supply logic peripheral circuits; wherein... The transceiver and power supply logic peripheral circuit is used to receive the airborne test data acquisition signal and the power supply signal sent by the single pair Ethernet airborne test data acquisition module, and the sensing information sent by the single pair Ethernet data transmission chain. The transceiver and power supply logic peripheral circuit is also used to send the airborne test data acquisition signal and the power supply signal to the single pair Ethernet data transmission chain; and to send the sensing information to the single pair Ethernet airborne test data acquisition module.

5. The physical transmission device based on a single-pair Ethernet sensor network according to claim 2, characterized in that, The airborne test bus slave station includes a full-bridge rectifier circuit, a resistor divider circuit, and a slave chip; wherein... The full-bridge rectifier circuit is used to rectify the received airborne test data acquisition signal and the power supply signal; The resistor voltage divider circuit is used to divide the voltage of the rectified signal to obtain a divided signal, and the voltage of the divided signal is within the safe operating voltage range. The slave chip is used to operate under the voltage provided by the voltage-divided signal and to parse the flight test data acquisition command from the voltage-divided signal. The flight test data acquisition command is used to instruct the airborne test sensor module to acquire the sensing information.

6. The physical transmission device based on a single-pair Ethernet sensor network according to claim 4, characterized in that, The peripheral circuitry for the transceiver and power supply logic includes: a P-MOSFET, a signal control unit, a communication power supply, a signal reading circuit, and a microcontroller (MCU) for the transceiver and power supply logic; wherein... The transceiver and power supply logic MCU is used to control the P-MOSFET to be fully turned on when the excitation level is high, and to send the airborne test data acquisition signal and the power supply signal to the signal control unit through the P-MOSFET and then to the single pair of Ethernet data transmission chains; when the excitation level is low, it turns on the constant current source inside the communication power supply and sends the constant current source to the signal control unit through the signal reading circuit and then to the single pair of Ethernet data transmission chains.

7. The physical transmission device based on a single-pair Ethernet sensor network according to claim 6, characterized in that, The transceiver and power supply logic MCU is connected to a Darlington discharge circuit, and the Darlington discharge circuit is connected to the single pair of Ethernet data transmission links; wherein... The transceiver and power supply logic MCU is also used to send a level control signal to the signal control unit after the communication ends. The level control signal instructs the signal control unit to output a low level and start the Darlington discharge circuit to discharge the residual charge in the single pair of Ethernet data transmission chains. The voltage of the residual charge after discharge is less than a preset voltage threshold.

8. The physical transmission device based on a single-pair Ethernet sensor network according to claim 4, characterized in that, The airborne test bus master station also includes return code control pins and peripheral components; The return code control pin is used to generate a first return code upon receiving the sensing information, and to send the first return code to the airborne test bus slave station through the single pair Ethernet data transmission chain; The peripheral components are used to convert the current signal corresponding to the first return code into a voltage signal and control the level of the return code control pin to be within a safe range.

9. The physical transmission device based on a single-pair Ethernet sensor network according to claim 5, characterized in that, The airborne test bus slave station also includes a return code transmission pin; The echo code transmission pin is used to generate a second echo code upon receiving the airborne test data acquisition signal and the power supply signal, and to send the second echo code to the airborne test bus master station through the single pair Ethernet data transmission chain.

10. A physical transmission method based on a single-pair Ethernet sensor network, characterized in that, The physical transmission device is applied to the single-pair Ethernet sensor network based on any one of claims 1-9, wherein the physical transmission device includes an airborne test bus master station, a single-pair Ethernet data transmission chain, and an airborne test bus slave station; the airborne test bus master station is connected to the single-pair Ethernet airborne test data acquisition module and the single-pair Ethernet data transmission chain, respectively. The airborne test bus slave station is connected to the single pair of Ethernet data transmission chains and the airborne test sensor module, respectively; the method includes: The airborne test bus master station receives the airborne test data acquisition signal and power supply signal sent by the single pair of Ethernet airborne test data acquisition module, and sends the airborne test data acquisition signal and the power supply signal to the single pair of Ethernet data transmission chain. The airborne test data acquisition signal is used to instruct the airborne test sensor module to acquire sensing information related to airborne testing, and the power supply signal is used to power the airborne test sensor module. The airborne test data acquisition signal and the power supply signal sent by the airborne test bus master station are received through the single pair Ethernet data transmission link, and the airborne test data acquisition signal and the power supply signal are sent to the airborne test bus slave station. The slave station receives the airborne test data acquisition signal and the power supply signal sent by the single pair of Ethernet data transmission links through the airborne test bus, and sends the airborne test data acquisition signal and the power supply signal to the airborne test sensor module. The slave station receives the sensing information sent by the airborne test sensor module through the airborne test bus and sends the sensing information to the single pair Ethernet data transmission chain; The sensor information sent by the airborne test bus slave station is received through the single pair Ethernet data transmission link, and the sensor information is sent to the airborne test bus master station. The airborne test bus master station receives the sensing information sent by the single pair of Ethernet data transmission chains and sends the sensing information to the single pair of Ethernet airborne test data acquisition module.

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