Data acquisition and recording device

Abstract

The utility model belongs to the technical field of avionics, and particularly relates to a data acquisition and recording device. Comprising a signal switching module (1), a power supply module (2), a comprehensive processing module (3), a data card (4), a crash protection assembly (5) and a case (6). The comprehensive processing module (3) is connected with other equipment on an airplane through an Ethernet bus, an ARINC-429 bus, an RS-422 bus, a GJB289A bus, a frequency quantity interface, an analog quantity interface and a switching value interface, is connected with the crash protection assembly (5) through an SATA interface, and is connected with the data card (4) through a PCIE interface; the signal switching module (1) is used for performing lightning protection on an external signal interface and then switching a signal to the comprehensive processing module (3) through the power supply (2) via a CPCI connector, and the power supply module (2) is also connected with two paths of 28VDC power supplies which are connected with the comprehensive processing module (3) after conditioning and conversion. The data acquisition and recording device is safe and reliable, and can meet the use requirements of small general aircrafts and unmanned aerial vehicles.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of avionics, and particularly relates to a data acquisition and recording device. BACKGROUND

[0002] The flight data recording system is used for collecting and recording various flight and audio data on an airplane, and is used for aircraft state monitoring and accident investigation. With the successive opening of low-altitude fields in China, various unmanned planes are ushered into a period of great development. The flight data recording system generally comprises three main components, namely a data collector, a data recorder and a cache recorder. The system is large in size, heavy in weight and complex in cross-linking relationship, and is not suitable for the miniaturization requirement of unmanned planes. Therefore, it is urgent to develop a data acquisition and recording device suitable for light and small unmanned planes, which integrates data acquisition, crash protection and rapid data acquisition functions. UTILITY MODEL CONTENT

[0003] The utility model aims to provide a data acquisition and recording device suitable for light and small unmanned planes.

[0004] TECHNICAL SCHEME

[0005] The data acquisition and recording device comprises a signal switching module 1, a power module 2, a comprehensive processing module 3, a data card 4, a crash protection assembly 5 and a case 6. The input of the comprehensive processing module 3 and the output of the power module 2 are connected through an Ethernet bus, an ARINC-429 bus, an RS-422 bus, a GJB289A bus, a frequency quantity interface, an analog quantity interface and a switching quantity interface. The comprehensive processing module 3 is connected to the crash protection assembly 5 through an SATA interface, and the comprehensive processing module 3 is connected to the data card 4 through a PCIE interface.

[0006] The signal switching module 1 is used to connect the external signal interface to the input end of the power module 2 after lightning protection. The power module 2 is also used to connect two 28VDC power supplies to the comprehensive processing module 3 after regulation and conversion. The case 6 is used to fix the signal switching module 1, the power module 2, the comprehensive processing module 3, the data card 4 and the crash protection assembly 5.

[0007] Further, the signal switching module 1 comprises a first connector 101, a second connector 102, a third connector 103, a fourth connector 104, a CPCI connector 105 and a lightning protection circuit 106. The first connector 101 is connected to the second connector 102 through the third connector 103 and the fourth connector 104.

[0008] The first connector 101 is used for connecting on-board ARINC-429 bus, analog interface, frequency signal and switch signal, the second connector 102 is used for connecting on-board RS-422 bus and GJB289A signal; the third connector 103 is used for connecting on-board 2-way 28V power supply; the fourth connector 104 is used for connecting 5-way 100M Ethernet and 3-way 1000M Ethernet,

[0009] The output signals of all the connectors are connected in parallel with the lightning protection circuit 106 for lightning protection, and then connected with the power module 2 through the CPCI connector 105; the first connector 101, the second connector 102, the third connector 103 and the fourth connector 104 are installed by welding.

[0010] Further, the power module 2 comprises a first connector circuit 201, a second connector circuit 202, an input power pre-processing circuit 203, a filter circuit 204, a surge suppression circuit 205, an energy storage circuit 206, a secondary power conversion circuit 207 and a power failure signal indication circuit 208; wherein the input power pre-processing circuit 203 is connected with the first connector circuit 201 and the on-board external signal through the 28VDC power supply of an airplane,

[0011] The secondary power conversion circuit 207 is connected with the comprehensive processing module 3 through the second connector circuit 202, and the first connector circuit 201 connects the on-board external signal with the comprehensive processing module 3 through the second connector circuit 202 through a printed board;

[0012] The input power pre-processing circuit 203, the filter circuit 204, the surge suppression circuit 205, the energy storage circuit 206, the secondary power conversion circuit 207 and the power failure signal indication circuit 208 are connected in sequence.

[0013] Further, the comprehensive processing module 3 comprises a SOC microprocessor 301, a signal acquisition and processing module 302 connected with the input port of the SOC microprocessor 301 respectively, a 100M Ethernet circuit 303, a 1000M Ethernet circuit 304, a SATA interface control circuit 305, an SPI FLASH program storage chip 306, a DDR3 circuit 307 and a PCIE interface circuit 309; the signal acquisition and processing module 302, the 100M Ethernet circuit 303, the 1000M Ethernet circuit 304, the SATA interface control circuit 305, the SPI FLASH program storage chip 306 and the DDR3 circuit 307 are connected with the power supply circuit 308 and the SOC microprocessor 301, the SOC microprocessor 301 is connected with the data card 4 through the PCIE interface control circuit 309 and is connected with the crash protection assembly 5 through the SATA interface circuit, so that the received data is written into the data card 4 and the crash protection assembly, the signal acquisition and processing module 302, the 100M Ethernet circuit 303, the 1000M Ethernet circuit 304 and the power supply circuit 308 are connected with the power module through the connector circuit 310, and the input of external acquisition signals and power supply is completed.

[0014] Further, the data card 4 adopts a PCIE high-speed interface.

[0015] Further, the crash protection assembly 5 adopts a SATA interface.

[0016] Further, the case 6 comprises a base 601, a panel 602, a battery box 603, a side case 604, a data card box 605 and a handle 606.

[0017] Beneficial effects:

[0018] Compared with the original data collector which only completes data collection, the data recorder and the cache recorder only receive data to complete data recording, the data collector, the data recorder and the cache recorder are fused in the data acquisition recording device, so that data collection, data recording, crash survival and data rapid acquisition can be completed in one equipment, the integration degree is high, the acquisition interface is rich, the integration degree of the product is improved, and the size and weight of the product are greatly reduced. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 is the product appearance diagram of the utility model.

[0020] Figure 2 is the product principle block diagram of the utility model

[0021] Figure 3The signal switching module block diagram.

[0022] Figure 4 The power module block diagram.

[0023] Figure 5 The comprehensive processing module principle block diagram of the utility model.

[0024] Among them, 1 - signal switching module, 2 - power module, 3 - comprehensive processing module, 4 - data card, 5 - crash protection component, 6 - case, 101 - first connector, 102 - second connector, 103 - third connector, 104 - fourth connector, 105 - CPCI connector, 106 - lightning protection circuit, 201 - first connector circuit, 202 - second connector circuit, 203 - input power pretreatment circuit, 204 - filter circuit, 205 - surge suppression circuit, 206 - energy storage circuit, 207 - secondary power conversion circuit, 208 - power failure signal indicating circuit, 301 - SOC microprocessor, 302 - signal acquisition and processing module, 303 - 100 megabit Ethernet circuit, 304 - 1000 megabit Ethernet circuit, 305 - SATA interface control circuit, 306 - SPI FLASH program storage chip, 307 - DDR3 circuit, 308 - power supply circuit, 309 - PCIE interface circuit, 310 - connector circuit, 601 - base, 602 - panel, 603 - battery box, 604 - side case, 605 - data card box, 606 - handle, 607 - status lamp, 608 - ground wire. DETAILED DESCRIPTION

[0025] The utility model makes further detailed description in combination with the drawings.

[0026] As Figure 1 The case 6 includes base 601, panel 602, battery box 603, side case 604, data card box 605, handle 606, status lamp 607 and ground wire 608, and the base 601 is used to fix signal switching module 1, comprehensive processing module 3, power module 2, data card 4, crash protection component 5 and indicates product state, guarantees that product is on the machine good earthing.

[0027] As Figure 1 And Figure 2As shown, a data acquisition and recording device includes a signal conversion module 1, an integrated processing module 3, a power supply module 2, a data card 4, a crash protection component 5, and a chassis 6. The integrated processing module 3 connects to other aircraft equipment via Ethernet bus, ARINC-429 bus, RS-422 bus, GJB289A bus, analog interface, and digital interface; it connects to the crash protection component 5 via a SATA interface and to the data card 4 via a PCIe interface. The signal conversion module 1, after providing surge protection to external signal interfaces, converts signals to the integrated processing module 3 via a CPCI connector and the power supply 2. The power supply module 2 also connects to two 28VDC power supplies, which, after conditioning and conversion, are connected to the integrated processing module 3. The chassis 6 is used to secure the various modules.

[0028] like Figure 3 The signal conversion module 1 includes a first connector 101, a second connector 102, a third connector 103, a fourth connector 104, a CPCI connector 105, and a surge protection circuit 106. The first connector 101 is used to connect the on-board ARINC-429 bus, analog interface, frequency signal, and switch signal; the second connector 102 is used to connect the on-board RS-422 bus and GJB289A signal; the third connector 103 is used to connect two 28V power supplies on the machine; and the fourth connector 104 is used to connect five 100Mbps Ethernet ports and three Gigabit Ethernet ports. All signals are connected to the surge protection circuit 106 for surge protection and then connected to the power module 2 via the CPCI connector 105. The first connector 101, second connector 102, third connector 103, and fourth connector 104 are installed by soldering.

[0029] like Figure 4 The power module includes a first connector circuit 201, a second connector circuit 202, an input power preprocessing circuit 203, a filter circuit 204, a surge suppression circuit 205, a secondary power conversion circuit 206, and a power failure signal indication circuit 207 connected in sequence. The input power preprocessing circuit 202 is connected to the aircraft's 28VDC power supply and external signals via the first connector circuit 201. The secondary power conversion circuit 205 is connected to the integrated processing module 3 via the second connector circuit 202. The first connector circuit 201 connects the external signals to the integrated processing module 3 via the second connector circuit 202 through the printed circuit board.

[0030] like Figure 5The comprehensive processing module 3 comprises a SOC microprocessor 301, a signal acquisition and processing module 302 connected with the SOC microprocessor 301 respectively, a 100M Ethernet circuit 303, a 1000M Ethernet circuit 304, a SATA interface control circuit 305, an SPI FLASH program storage chip 306, a DDR3 circuit 307 and a PCIE interface circuit 309; the signal acquisition and processing module 302, the 100M Ethernet circuit 303, the 1000M Ethernet circuit 304, the SATA interface control circuit 305, the SPI FLASH program storage chip 306, the DDR3 circuit 307 and the PCIE interface control circuit 309 are connected with a power supply circuit 308 and the SOC microprocessor 301; the SOC microprocessor 301 is connected with a data card 4 through the PCIE interface control circuit 309 and is connected with a crash protection assembly 5 through the SATA interface circuit, so as to complete writing of the received data into the data card 4 and the crash protection assembly 5; the signal acquisition and processing module 302, the 100M Ethernet circuit 303, the 1000M Ethernet circuit 304 and the power supply circuit 308 are connected with a power module through a connector circuit 310, so as to complete input of the external acquisition signal and the power supply.

[0031] As Figure 5 The data card 4 adopts a PCIE high-speed interface.

[0032] As Figure 5 The crash protection assembly 5 adopts a SATA interface.

Claims

1. A data acquisition and recording device, characterized in that, include: The system comprises a signal conversion module (1), a power supply module (2), an integrated processing module (3), a data card (4), a crash protection component (5), and a chassis (6). The input of the integrated processing module (3) and the output of the power supply module (2) are connected via an Ethernet bus, an ARINC-429 bus, an RS-422 bus, a GJB289A bus, a frequency input interface, an analog input interface, or a digital input interface. The integrated processing module (3) is connected to the crash protection component (5) via a SATA interface and to the data card (4) via a PCIE interface. The signal conversion module (1) is used to connect the external signal interface to the input terminal of the power module (2) after lightning protection. The power module (2) is also used to connect the two 28VDC power supplies to the integrated processing module (3) after conditioning and conversion. The chassis (6) is used to fix the signal conversion module (1), power module (2), integrated processing module (3), data card (4) and crash protection component (5).

2. The data acquisition and recording device according to claim 1, characterized in that, The signal conversion module (1) includes a first connector (101), a second connector (102), a third connector (103), a fourth connector (104), a CPCI connector (105), and a surge protection circuit (106); wherein, The first connector (101) is used to connect the ARINC-429 bus, analog interface, frequency signal, and switch signal on the machine; the second connector (102) is used to connect the RS-422 bus and GJB289A signal on the machine; the third connector (103) is used to connect two 28V power supplies on the machine; and the fourth connector (104) is used to connect five 100Mbps Ethernet ports and three Gigabit Ethernet ports. The output signals of all connectors are connected in parallel to the surge protection circuit (106) for surge protection, and then connected to the power module (2) through the CPCI connector (105); the first connector (101), the second connector (102), the third connector (103) and the fourth connector (104) are installed by soldering.

3. The data acquisition and recording device according to claim 1, characterized in that, The power module (2) includes a first connector circuit (201), a second connector circuit (202), an input power preprocessing circuit (203), a filter circuit (204), a surge suppression circuit (205), an energy storage circuit (206), a secondary power conversion circuit (207), and a power failure signal indication circuit (208); wherein, the input power preprocessing circuit (203) is connected to the aircraft's 28VDC power supply and external signals via the first connector circuit (201). The secondary power conversion circuit (207) is connected to the integrated processing module (3) through the second connector circuit (202), and the first connector circuit (201) connects the external signals on the machine to the integrated processing module (3) through the second connector circuit (202) via the printed circuit board. The input power preprocessing circuit (203), filter circuit (204), surge suppression circuit (205), energy storage circuit (206), secondary power conversion circuit (207), and power failure signal indication circuit (208) are connected in sequence.

4. The data acquisition and recording device according to claim 1, characterized in that, The data card (4) uses a PCIE high-speed interface.

5. The data acquisition and recording device according to claim 1, characterized in that, The crash protection component (5) uses a SATA interface.

6. The data acquisition and recording device according to claim 1, characterized in that, The chassis (6) includes a base (601), a panel (602), a battery box (603), a side chassis (604), a data card box (605), and a handle (606).

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