PoE-powered wireless aero-engine detection adapter

Abstract

The utility model relates to the technical field of engine detection, in particular to a PoE-powered wireless aero-engine detection adapter, which comprises a main control board, a signal backboard and a Wifi module, the signal backboard and the Wifi module are electrically connected with the main control board, and the adapter is connected with an aero-engine to be detected through the signal backboard and connected with an upper computer through the Wifi module. The main control board is provided with a main control module, a detection module and a PoE power supply module. The master control module comprises an ARM processor and an Ethernet interface chip. The detection module comprises a JL switching chip, an FPGA chip and a PHY chip. The PoE power supply module comprises a PoE power supply and a DC-DC converter connected to the PoE power supply. According to the utility model, two groups of independent detection channels can be provided, two aero-engines can be detected and operation data can be extracted at the same time, and the detection efficiency is high; the JL6110 switching chip and the FPGA chip are arranged in a matched manner, so that detection signals can be received comprehensively; and the two DC-DC converters of different models are arranged, so that power supply can be adaptively converted.

Description

Technical Field

[0001] The utility model relates to the technical field of engine detection, in particular to a PoE-powered wireless aviation engine detection adapter. Background Art

[0002] The adapter is used to establish a connection between the host computer and the wireless aircraft engine. By measuring the values ​​of different parameters of the wireless aircraft engine, the working condition of the engine can be evaluated.

[0003] The adapter used in traditional technology only uses a single switching chip that directly receives the detection signal. However, in the actual detection process, there are multiple detection signals, and the single switching chip in the adapter cannot fully receive the detection signal, which affects the detection effect of the aircraft engine. Utility Model Content

[0004] In view of the above-mentioned shortcomings of the prior art, the purpose of the utility model is to provide a PoE-powered wireless aircraft engine detection adapter to solve the problem that the adapter in the prior art uses a single switching chip and cannot completely receive the detection signal.

[0005] In order to achieve the above-mentioned purpose and other related purposes, the utility model provides a PoE-powered wireless aircraft engine detection adapter, comprising a main control board and a signal backplane electrically connected to the main control board, and a Wifi module, wherein the adapter is connected to the aircraft engine to be tested via the signal backplane and connected to the host computer via the Wifi module;

[0006] The main control board is provided with a main control module, a detection module and a PoE power supply module;

[0007] The main control module includes an ARM processor and an Ethernet interface chip, and the ARM processor is electrically connected to the detection module through the Ethernet interface chip;

[0008] The detection module includes a JL switch chip, an FPGA chip and a PHY chip, and the PHY chip is connected between the JL switch chip and the FPGA chip to form a detection channel;

[0009] The JL switching chip is used to directly receive the G signal from the signal backplane, and to aggregate and forward the internal signal of the adapter;

[0010] The FPGA chip is used to process RS interface signals and discrete signals from the signal backplane and package them into Ethernet data packets;

[0011] The PHY chip is used to convert the digital signal packaged by the FPGA chip into an Ethernet data packet into an analog signal and converge it to the JL switching chip;

[0012] The PoE power supply module includes a PoE power supply and a DC-DC converter connected to the PoE power supply. The PoE power supply is used for power supply after the voltage is converted by the DC-DC converter.

[0013] In one embodiment of the utility model, the DC-DC converter includes a first converter and a second converter. The first converter adopts a four-channel DC / DC step-down uModule regulator with model LTM, and the FPGA chip is connected to the first converter; the second converter adopts a synchronous step-down DC / DC converter with model FRF, and the ARM processor, Ethernet interface chip, JL switching chip, and PHY chip are all connected to the second converter.

[0014] In one embodiment of the present invention, an aviation plug and a BB connector are provided on the signal backplane, and the BB connector is electrically connected to the JL switch chip.

[0015] In one embodiment of the utility model, two detection channels are provided, the number of aviation plugs on the signal backplane is the same as the number of detection channels, and a single detection channel corresponds to the detection of an aircraft engine connected through one aviation plug.

[0016] In one embodiment of the present invention, the main control module is further provided with an MDC / MDIO serial interface bus, the input end of the MDC / MDIO serial interface bus is connected to the ARM processor, and the output end is connected to the JL switch chip.

[0017] As described above, the PoE-powered wireless aircraft engine detection adapter of the utility model has the following beneficial effects:

[0018] 1. By setting up the JL6110 switch chip and FPGA chip in the detection module at the same time, the 1G network signal, RS422 interface signal, and discrete signal transmitted on the signal backplane can be directly or indirectly converged to the JL6110 switch chip, thereby improving the reception integrity of the detection signal and thus improving the detection effect of the aircraft engine;

[0019] 2. By setting up two DC-DC converters of different models, the voltage output by the PoE power supply can be stabilized or stepped down to suit the different chip products in the adapter, thus avoiding voltage fluctuations or high voltage affecting the use of the chip, extending the service life of the chip product and reducing costs;

[0020] 3. The utility model can provide two sets of independent detection channels, which can detect two aircraft engines and extract operating data at the same time, with high detection efficiency; the coordinated setting of JL6110 switching chip and FPGA chip can fully receive detection signals; the setting of two DC-DC converters of different models can adaptively convert power supply; the utility model uses the signal backplane downward to provide RS422 interface signals, Gigabit Ethernet interface signals and discrete quantity signals; uses Wifi module connection upward to provide Gigabit Ethernet interface signals, and the transmission of detection signals has high reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 Shown is a principle block diagram of a PoE-powered wireless aircraft engine detection adapter disclosed in the utility model.

[0022] Figure 2 Display as Figure 1 An enlarged view of the main control module.

[0023] Figure 3 Display as Figure 1 A magnified view of a single detection channel in the detection module.

[0024] Figure 4 Shown is a principle block diagram of a PoE power supply module used in the PoE-powered wireless aircraft engine detection adapter disclosed in the utility model.

[0025] Component number description

[0026] Main control board 1; signal backplane 2; Wifi module 3; main control module 4; detection module 5; PoE power supply module 6; ARM processor 7; Ethernet interface chip 8; JL6110 switch chip 9; FPGA chip 10; PHY chip 11; PoE power supply 12; DC-DC converter 13; first converter 131; second converter 132; aviation plug 14; B2B connector 15; MDC / MDIO serial interface bus 16. DETAILED DESCRIPTION

[0027] The following is a description of the implementation of the present invention by means of specific embodiments. People familiar with the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

[0028] See also Figures 1 to 4It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings in this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the conditions under which the utility model can be implemented. Therefore, they have no substantial technical significance. Any structural modification, change in proportion or adjustment of size should still fall within the scope of the technical content disclosed by the utility model without affecting the effects and purposes that can be achieved by the utility model.

[0029] See also Figure 1 The utility model provides a PoE-powered wireless aircraft engine detection adapter, comprising a main control board 1 and a signal backboard 2 electrically connected to the main control board 1, and a Wifi module 3. The signal backboard 2 can provide RS422 interface signals, Ethernet interface signals and discrete quantity signals; the adapter is connected to the aircraft engine to be tested through the signal backboard 2 and connected to the host computer through the Wifi module 3.

[0030] The main control board 1 is provided with a main control module 4 , a detection module 5 and a PoE power supply module 6 .

[0031] See also Figure 1-3 The main control module 4 includes an ARM processor 7 and an Ethernet interface chip 8, and the ARM processor 7 is electrically connected to the detection module 5 through the Ethernet interface chip 8; the detection module 5 includes a JL6110 switching chip 9, an FPGA chip 10 and a PHY chip 11, and the PHY chip 11 is connected between the JL6110 switching chip 9 and the FPGA chip 10 to form a detection channel; in this scheme, two detection channels are set; the JL6110 switching chip 9 is used to directly receive the 1G signal from the signal backplane 2, and to converge and forward the internal signal of the adapter; specifically, the ARM processor 7 is connected to the JL6110 switching chip 9 through the MIIPHY interface and the SMI management interface, and the port configuration and data forwarding rules of the JL6110 switching chip 9 can be set and monitored, and the information is fed back to the host computer; the Wifi module 3 is connected to the JL6110 switching chip 9 through the ETH interface to transmit data.

[0032] The FPGA chip 10 is used to process the RS422 interface signal and discrete signal from the signal backplane 2 and package them into Ethernet data packets; the FPGA chip 10 can split the command network data packet from the host computer into RS422 signals and general discrete signals GPIO, and then provide a driving signal to the signal backplane 2; similarly, the FPGA chip 10 can combine the RS422 signal and discrete signal from the signal backplane 2 into a network data packet and upload it to the host computer via Ethernet for analysis. The PHY chip 11 is used to convert the digital signal packaged as an Ethernet data packet by the FPGA chip 10 into an analog signal, and converge it to the JL6110 switching chip 9; by simultaneously setting the JL6110 switching chip 9 and the FPGA chip 10 in the detection module 5, the 1G network signal, RS422 interface signal, and discrete signal transmitted through the signal backplane 2 can be directly or indirectly converged to the JL6110 switching chip 9, thereby improving the reception integrity of the detection signal and thus improving the detection effect of the aircraft engine.

[0033] See also Figure 4 The PoE power supply module 6 includes a PoE power supply 12 and a DC-DC converter 13 connected to the PoE power supply 12. The PoE power supply 12 is used for power supply after the voltage is converted by the DC-DC converter 13. The DC-DC converter 13 includes a first converter 131 and a second converter 132. The first converter 131 adopts a four-channel DC / DC step-down uModule regulator with a model number of LTM4644. Each of the four channels of the first converter 131 can output a current of 4A and supports an output voltage range of 0.6V to 5.5V. It has the characteristics of a wide input voltage range, high efficiency, and fast transient response. The FPGA chip 10 is connected to the first converter 131; the second converter 132 adopts a synchronous step-down DC / DC converter with a model number of FR9850F. The second converter 132 It has fast constant over time (FCOT) mode control, and can provide an input voltage range of 4.5V to 18V and a continuous load current capability of 2A; the ARM processor 7, the Ethernet interface chip 8, the JL6110 switch chip 9, and the PHY chip 11 are all connected to the second converter 132; by setting two DC-DC converters 13 of different models, the voltage output by the PoE power supply 12 can be stabilized or stepped down to be suitable for powering different chip products in the adapter, thereby avoiding voltage fluctuations or high voltage affecting the use of the chip, extending the service life of the chip product, and reducing costs.

[0034] The signal backplane 2 is provided with an aviation plug 14 and a B2B connector 15, and the B2B connector 15 is electrically connected to the JL6110 switch chip 9. The B2B connector 15 can transmit 1G network signals, RS422 interface signals, and discrete signals, and the 1G network signals are directly converged to the JL6110 switch chip 9. The number of aviation plugs 14 on the signal backplane 2 is the same as the number of detection channels, and a single detection channel corresponds to the detection of an aircraft engine connected through an aviation plug 14; the utility model can provide two sets of independent detection channels, and can detect two aircraft engines at the same time and extract operating data, with high detection efficiency.

[0035] The main control module 4 is also provided with an MDC / MDIO serial interface bus 16, the input end of the MDC / MDIO serial interface bus 16 is connected to the ARM processor 7, and the output end is connected to the JL6110 switching chip 9. The ARM processor 7 can directly manage the JL6110 chip 9 to obtain the port status and network rate of the detection module 5.

[0036] In summary, the utility model can provide two sets of independent detection channels, can detect two aircraft engines and extract operation data at the same time, and has high detection efficiency; the coordinated setting of JL6110 switching chip 9 and FPGA chip 10 can fully receive detection signals; the setting of two different types of DC-DC converters 13 can adaptively convert power supply; the utility model uses the signal backplane 2 downward to provide RS422 interface signals, Gigabit Ethernet interface signals and discrete quantity signals; uses the Wifi module 3 upward to connect and provide Gigabit Ethernet interface signals, and the transmission of detection signals has high reliability. Therefore, the utility model effectively overcomes the various shortcomings of the prior art and has a high industrial utilization value.

[0037] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the technology may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical concept disclosed in the present invention shall still be covered by the claims of the present invention.

Claims

1. A PoE-powered wireless aircraft engine detection adapter, comprising a main control board (1), a signal backplane (2) electrically connected to the main control board (1), and a Wifi module (3), wherein the adapter is connected to an aircraft engine to be tested via the signal backplane (2) and is connected to a host computer via the Wifi module (3); Features: The main control board (1) is provided with a main control module (4), a detection module (5) and a PoE power supply module (6); The main control module (4) comprises an ARM processor (7) and an Ethernet interface chip (8), and the ARM processor (7) is electrically connected to the detection module (5) via the Ethernet interface chip (8); The detection module (5) comprises a JL6110 switching chip (9), an FPGA chip (10) and a PHY chip (11), wherein the PHY chip (11) is connected between the JL6110 switching chip (9) and the FPGA chip (10) to form a detection channel; The JL6110 switching chip (9) is used to directly receive 1G signals from the signal backplane (2), and to aggregate and forward the internal signals of the adapter; The FPGA chip (10) is used to process RS422 interface signals and discrete signals from the signal backplane (2) and package them into Ethernet data packets; The PHY chip (11) is used to convert the digital signal packaged as an Ethernet data packet by the FPGA chip (10) into an analog signal, and converge it to the JL6110 switching chip (9); The PoE power supply module (6) comprises a PoE power supply (12) and a DC-DC converter (13) connected to the PoE power supply (12); the PoE power supply (12) is used for power supply after voltage conversion by the DC-DC converter (13).

2. The PoE-powered wireless aircraft engine detection adapter according to claim 1, characterized in that: The DC-DC converter (13) comprises a first converter (131) and a second converter (132); the first converter (131) adopts a four-channel DC / DC step-down uModule regulator of model LTM4644, and the FPGA chip (10) is connected to the first converter (131); the second converter (132) adopts a synchronous step-down DC / DC converter of model FR9850F, and the ARM processor (7), Ethernet interface chip (8), JL6110 switching chip (9), and PHY chip (11) are all connected to the second converter (132).

3. The PoE-powered wireless aircraft engine detection adapter according to claim 1, characterized in that: The signal backplane (2) is provided with an aviation plug (14) and a B2B connector (15), and the B2B connector (15) is electrically connected to the JL6110 switching chip (9).

4. The PoE-powered wireless aircraft engine detection adapter according to claim 3 is characterized in that: Two detection channels are provided, the number of aviation plugs (14) on the signal backplane (2) is the same as the number of detection channels, and a single detection channel corresponds to the detection of an aircraft engine connected via one aviation plug (14).

5. The PoE-powered wireless aircraft engine detection adapter according to claim 1, characterized in that: The main control module (4) is also provided with an MDC / MDIO serial interface bus (16), the input end of the MDC / MDIO serial interface bus (16) being connected to the ARM processor (7) and the output end being connected to the JL6110 switching chip (9).

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