CN210721447U

CN210721447U - Novel aviation three-to-one interface circuit

Info

Publication number: CN210721447U
Application number: CN201922373634.2U
Authority: CN
Inventors: 高伟亮; 夏栋; 李大龙; 戚甫峰
Original assignee: Qingdao Campus of Naval Aviation University of PLA
Current assignee: Qingdao Campus of Naval Aviation University of PLA
Priority date: 2019-12-26
Filing date: 2019-12-26
Publication date: 2020-06-09
Anticipated expiration: 2029-12-26

Abstract

The utility model belongs to the technical field of aviation interface circuit, especially, novel three change an interface circuit of aviation, the ordinary way to adopting at present is, a type storage interface is equipped with an adaptation reader, be equipped with solitary adaptation for every kind of interface and read, it is too much to cause the computer to establish outside, to weight, the problem that volume and consumption all can increase, the following scheme is proposed to present, it includes the computer power, the SPI interface, the electronic hard disk of SATA interface and the electronic hard disk of USB interface, be connected with SATA commentaries on classics USB circuit between the electronic hard disk of SATA interface and the electronic hard disk of USB interface, be connected with control circuit on the electronic hard disk of USB interface. The utility model discloses a design a ground and read adapter suitable for multiple type interface, can the timesharing read the data in the electronic disk memory of different interface types, can read multiple type interface simultaneously, reduced weight, volume and energy consumption.

Description

Novel aviation three-to-one interface circuit

Technical Field

The utility model relates to an aviation interface circuit technical field especially relates to a novel three changes of aviation interface circuit.

Background

In the field of aviation data acquisition and testing, flight data are stored in electronic disks of various interface types, including an aviation-specific SPI bus interface and standard SATA and USB interfaces, and the different interface types enable the flight data to be downloaded to the ground and need to be equipped with different types of ground adaptive readers.

Currently, a common practice is to equip one type of storage interface with an adaptive reader, and equip each type of interface with a separate adaptive reader, resulting in excessive computer peripheral equipment and increased weight, volume, and power consumption.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the current common way of adopting is, and the storage interface of a type is equipped with an adaptation reader, is equipped with solitary adaptation for every kind of interface and reads, causes the computer to establish excessively, to the shortcoming that weight, volume and consumption all can increase, and the novel aviation three of proposing changes an interface circuit.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

novel aviation three changes an interface circuit, including the computer power, the SPI interface, the electronic hard disk of SATA interface and the electronic hard disk of USB interface, be connected with SATA between the electronic hard disk of SATA interface and the electronic hard disk of USB interface and change the USB circuit, be connected with control circuit on the electronic hard disk of USB interface, be connected with special aviation accumulator on the control circuit, the tristimulus designation lamp, three keep off change over switch and parallel data output time control circuit, be connected with clock and socket-parallel slot on the control circuit during parallel data output, be connected with the one end of socket-parallel cable on the socket-parallel slot, and the other end of air cable is connected with the computer motherboard, control circuit and special aviation accumulator pass through SPI interface connection.

Preferably, the three-color indicator lamp is a two-color common anode indicator lamp, two ends of an anode are both connected with the positive end of the same 5V power supply, two ends of a cathode are respectively the incic 1 and the incic 2, two resistors PD6R and one ends of two resistors PD7R are both connected to the incic 1 and the incic 2, two resistors PD6R are both connected with the same first triode Q1, and the other ends of the two resistors PD7R are both connected with the same second triode Q2.

Preferably, the base electrodes of the first triode Q1 and the second triode Q2 are respectively connected with a PD6 pin of the single chip microcomputer and a PD7 pin of the single chip microcomputer, and both the first triode Q1 and the second triode Q2 are grounded.

Preferably, the first triode Q1 and the second triode Q2 are both NPN triodes, and the two resistors PD6R and PD7R are connected to the first triode Q1 and the second triode Q2 through two collectors, respectively.

Preferably, the three-color indicator lamp comprises a light emitting tube D1 and a light emitting tube D2, wherein D1 is a green lamp, and D2 is a red lamp.

Compared with the prior art, the utility model has the advantages of:

(1) the scheme designs two independent channels, one channel is used for reading the data of the SPI interface electronic disk, the data of the special aviation memory is read through the SPI interface, the other channel is used for reading the file data of the electronic disk of the SATA and USB interfaces, the on-off of the two channels is controlled by the control circuit, only one channel works when the system is in a working state, as shown in figure 1, in the channel for reading the SPI interface electronic disk, the control circuit reads out the serial data of the SPI interface electronic disk and sends the serial data to the parallel data output time sequence control circuit, the parallel data is generated and then sent to the computer mainboard through the parallel port slot and the parallel port cable, in the other channel, the USB bus data is directly sent to the control circuit and sent to the computer mainboard after the same processing, the SATA bus data is converted into USB bus format data through the SATA-to-USB circuit and then sent to the control circuit.

The utility model discloses a design a ground and read adapter suitable for multiple type interface, can the timesharing read the data in the electronic disk memory of different interface types, can read multiple type interface simultaneously, reduced weight, volume and energy consumption.

Drawings

Fig. 1 is a circuit function design diagram of a novel aviation three-to-one interface circuit provided by the present invention;

fig. 2 is a first triode circuit diagram of the novel aviation three-to-one interface circuit provided by the present invention;

fig. 3 is a second triode circuit diagram of the novel aviation three-to-one interface circuit provided by the present invention;

fig. 4 is a 5V power supply, D1 and D2 circuit connection diagram of the novel aviation three-to-one interface circuit provided by the present invention.

Detailed Description

The technical solutions in the embodiments will be described clearly and completely with reference to the drawings in the embodiments, and it is obvious that the described embodiments are only a part of the embodiments, but not all embodiments.

Referring to fig. 1-4, novel aviation three changes an interface circuit, including the computer power, the SPI interface, the electronic hard disk of SATA interface and the electronic hard disk of USB interface, be connected with SATA commentaries on classics USB circuit between the electronic hard disk of SATA interface and the electronic hard disk of USB interface, be connected with control circuit on the electronic hard disk of USB interface, be connected with special aviation accumulator on the control circuit, the tristimulus designation lamp, three keep off change over switch and parallel data output time control circuit, be connected with clock and parallel port slot on the control circuit during parallel data output, be connected with the one end of parallel port cable on the parallel port slot, and the other end of empty cable is connected with the computer mainboard, control circuit and special aviation accumulator pass through SPI interface connection.

In this embodiment, the three-color indicator lamp is a two-color common-anode indicator lamp, the two ends of the anode are both connected with the positive end of the same 5V power supply, the two ends of the cathode are the incic 1 and the incic 2, the incic 1 and the incic 2 are both connected with one ends of two resistors PD6R and two resistors PD7R, the two resistors PD6R are both connected with the same first triode Q1, and the other ends of the two resistors PD7R are both connected with the same second triode Q2.

In this embodiment, the base electrodes of the first triode Q1 and the second triode Q2 are respectively connected with the PD6 pin of the single chip microcomputer and the PD7 pin of the single chip microcomputer, and the first triode Q1 and the second triode Q2 are both grounded.

In this embodiment, the first triode Q1 and the second triode Q2 are both NPN triodes, and the two resistors PD6R and PD7R are connected to the first triode Q1 and the second triode Q2 through two collectors, respectively.

In this embodiment, the three-color indicator lamp includes a light emitting tube D1 and a light emitting tube D2, D1 is a green light, and D2 is a red light.

In this embodiment, the interfaces of the current flight data storage electronics include an SATA interface, a USB interface, a dedicated aviation SPI interface, and electronic hard disks of the SATA interface and the USB interface, and the flight data is stored in a FAT32 file format; the electronic disk of SPI interface uses FLASH as storage carrier, two working modes are greatly different, in order to implement 3 types of interfaces, two independent channels are designed by adopting single-board double-channel design principle, one channel is used for reading data of SPI interface electronic disk, reading special aviation memory data by means of SPI interface, another channel is used for reading file data of SATA and USB interface electronic disk, and utilizes control circuit to control on-off of two channels, when the system is in working state, only one channel is used for working, as shown in figure 1, in the course of reading SPI interface electronic disk channel, the control circuit can read out serial data of SPI interface electronic disk and send it into parallel data output time sequence control circuit, after producing parallel data, it can send it into computer main board by means of parallel slot and parallel cable, in the channel, USB bus data can be directly sent into another control circuit, and after identical treatment, it can be sent into computer main board, the SATA bus data is converted into USB format data through the SATA-to-USB circuit and then sent to the control circuit, the subsequent processing modes are the same, the control circuit is a core component of the system and controls two reading channels, the control logic in the control circuit can receive command signals of a change-over switch and read interface data of different types and send the interface data to the parallel data output time sequence control circuit, the parallel data output time sequence control circuit has perfect data, address and interrupt resource control logic and is used for finishing the core processing functions of direct data interaction, time sequence synchronization, data buffering, data distribution and the like of the control circuit control logic and parallel port control logic, the communication between the control circuit and a computer is ensured to be smooth, the SATA-to-USB circuit finishes SATA protocol conversion into USB protocol, when SPI data is read, a PD6 port outputs high level, the first triode Q1 is conducted, the light-emitting tube D1 works normally and displays green; when SATA and USB data are read, a PD7 port outputs high level, a second triode Q2 is conducted, a light-emitting tube D2 works normally, and red is displayed; when the SPI data and the SATA/USB data exist, the SPI data are preferentially read, so that the PD6 port still outputs high level, the triode Q1 is conducted, the light-emitting tube D1 works normally, and green is displayed; when no storage device exists, the PD6 and the PD7 output high level, the triodes Q1 and Q2 are both conducted, and the light-emitting tubes D1 and D2 work normally to display mixed colors of red and green and yellow.

The above descriptions are only preferred embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the scope of the present invention, and the technical solutions and the utility model concepts of the present invention are equivalent to, replaced or changed.

Claims

1. Novel aviation three changes an interface circuit, including computer power, SPI interface, the electronic hard disk of SATA interface and the electronic hard disk of USB interface, a serial communication port, be connected with SATA between the electronic hard disk of SATA interface and the electronic hard disk of USB interface and change the USB circuit, be connected with control circuit on the electronic hard disk of USB interface, the last special aviation accumulator that is connected with of control circuit, the tristimulus designation lamp, three keep off change over switch and parallel data output time control circuit, be connected with clock and parallel port slot on the control circuit during parallel data output, be connected with the one end of parallel port cable on the parallel port slot, and the other end of empty cable is connected with the computer mainboard.

2. The novel aviation three-to-one interface circuit as claimed in claim 1, wherein the three-color indicator lamp is a bicolor common anode indicator lamp, the same 5V power supply positive terminal is connected to both ends of the anode, the same 5V power supply positive terminal is connected to both ends of the cathode, the incic 1 and the incic 2 are connected to both ends of the cathode, one ends of two resistors PD6R and two resistors PD7R are connected to both the incic 1 and the incic 2, the same first triode Q1 is connected to both the two resistors PD6R, and the same second triode Q2 is connected to the other end of both the two resistors PD 7R.

3. The novel aviation three-to-one interface circuit as claimed in claim 2, wherein base electrodes of the first and second tertiary tubes Q1 and Q2 are respectively connected with a PD6 pin of a single chip microcomputer and a PD7 pin of the single chip microcomputer.

4. The novel aviation three-to-one interface circuit as claimed in claim 2, wherein the first triode Q1 and the second triode Q2 are NPN transistors.

5. The novel aviation three-to-one interface circuit as claimed in claim 1, wherein the three-color indicator light comprises a light emitting tube D1 and a light emitting tube D2, D1 is a green light, and D2 is a red light.