CN204089891U - The Ethernet interface conversion equipment of difference SPI signal - Google Patents
The Ethernet interface conversion equipment of difference SPI signal Download PDFInfo
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- CN204089891U CN204089891U CN201420553502.2U CN201420553502U CN204089891U CN 204089891 U CN204089891 U CN 204089891U CN 201420553502 U CN201420553502 U CN 201420553502U CN 204089891 U CN204089891 U CN 204089891U
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Abstract
The utility model discloses a kind of Ethernet interface conversion equipment of difference SPI signal.Ethernet interface conversion equipment is coupled between computer and R-T unit, Ethernet interface conversion equipment comprises: fpga chip, the first interface chip of the reception first difference SPI signal be connected with the first interface of fpga chip, second interface chip of the output second difference SPI signal be connected with the second interface of fpga chip, 3rd interface chip of reception the 3rd difference SPI signal be connected with the 3rd interface of fpga chip, 4th interface chip of reception the 4th difference SPI signal be connected with the 4th interface of fpga chip, the DC power supply be connected with the power interface of fpga chip, the single-chip microcomputer be connected with the 5th interface of fpga chip, the Ethernet chip be connected with the 6th interface and the single-chip microcomputer of fpga chip, be coupled to the Ethernet interface transformer between computer and Ethernet chip.The utility model can solve the obstacle in the Internet Transmission of the ground control station of unmanned plane.
Description
Technical field
The utility model relates to interface communication field, particularly a kind of Ethernet interface conversion equipment of difference SPI signal.
Background technology
Be otherwise known as drone (Unmanned Aerial Vehicle is called for short UAV) air-robot, is that one is handled by wireless remotecontrol or independent procedure controls, the reusable airborne vehicle of unpiloted one.It is equipped with automatic Pilot control system, remote control and telemetry system, automated navigation system, automatic landing system etc., realizes far distance controlled flight by these systems.
Ground control station is the important step connecting aeronautical ground radio station and unmanned plane automatic pilot, plays a part server in the entire system.The information such as UAV Attitude are sent to the R-T unit on ground by radio data link by automatic pilot, then be sent to ground control station by serial ports.Ground control station processes the information that receives in real time and shows.Ground operator uploads remote control command by R-T unit to unmanned plane simultaneously, guides unmanned plane to complete aerial mission according to predetermined air route.The instruction of uploading not only comprises from the flight switching value of ground control station, injecting data and flight directive etc., and comprises the trajectory planning instruction etc. from aeronautical ground radio station.
Current radio data link all possesses video transmission capabilities usually, ground control station must process the video that unmanned plane is beamed back with software, the tracking of such as image decoding, target, image mosaic and image debounce etc., and these softwares are normally operated on a ruggedized computer, this just needs the Signal transmissions that R-T unit is received on ruggedized computer.But reinforced notebook computer can only accept Ethernet data, therefore, the signal that R-T unit receives must convert ethernet signal to and just can be transferred on ruggedized computer, so the Internet Transmission of the ground control station of current unmanned plane exists obstacle.
Utility model content
Goal of the invention of the present utility model is: for above-mentioned Problems existing, provides a kind of Ethernet interface conversion equipment of difference SPI signal, can solve the obstacle in the Internet Transmission of the ground control station of unmanned plane.
The technical solution adopted in the utility model is to provide a kind of Ethernet interface conversion equipment of difference SPI signal, described Ethernet interface conversion equipment is coupled between computer and R-T unit, described Ethernet interface conversion equipment comprises: on-site programmable gate array FPGA chip, the first interface chip receiving the first differential serial Peripheral Interface SPI signal from described R-T unit be connected with the first interface of described fpga chip, the second interface chip exporting the second difference SPI signal to described R-T unit be connected with the second interface of described fpga chip, the 3rd interface chip receiving the 3rd difference SPI signal from described R-T unit be connected with the 3rd interface of described fpga chip, the 4th interface chip receiving the 4th difference SPI signal from described R-T unit be connected with the 4th interface of described fpga chip, the DC power supply be connected with the power interface of described fpga chip, the single-chip microcomputer carrying out protocol configuration be connected with the 5th interface of described fpga chip, what be connected with the 6th interface of described fpga chip and described single-chip microcomputer converts ethernet signal to or ethernet signal is converted to the Ethernet chip of SPI signal by SPI signal, be coupled to Ethernet interface transformer ethernet signal being carried out to transformation between described computer and described Ethernet chip.
Preferably, the direct voltage of described DC power supply is 5.5 volts.
Preferably, have the First Input First Output FIFO memory of ethernet signal being carried out to buffer memory in described fpga chip, described Ethernet chip connects the FIFO memory in described fpga chip by the 6th interface.
Preferably, described first difference SPI signal is the clock signal that amplitude is identical, phase place is contrary, described second difference SPI signal is the data output signal that amplitude is identical, phase place is contrary, described 3rd difference SPI signal is the data input signal that amplitude is identical, phase place is contrary, and described 4th difference SPI signal is the enable signal that amplitude is identical, phase place is contrary.
In sum, owing to have employed technique scheme, the beneficial effects of the utility model are: by cooperatively interacting of fpga chip, single-chip microcomputer and Ethernet chip, the obstacle in the Internet Transmission of the ground control station of unmanned plane can be solved, possesses good interference free performance, and transmission rate is higher, reliable data transmission can be ensured at complex electromagnetic environment.
Accompanying drawing explanation
Fig. 1 is the hardware principle block diagram of the Ethernet interface conversion equipment of the difference SPI signal of the utility model embodiment.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in detail.
In order to make the purpose of this utility model, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.
As shown in Figure 1, be the hardware principle block diagram of Ethernet interface conversion equipment of difference SPI signal of the utility model embodiment.The Ethernet interface conversion equipment of the present embodiment is coupled between computer and R-T unit.R-T unit is the equipment in ground control station, for receiving difference SPI (Serial Peripheral Interface, Serial Peripheral Interface (SPI)) from radio data link.Computer runs and has software, these software is used for the operations such as carries out image decoding, the tracking of target, image mosaic and image debounce.
Ethernet interface conversion equipment comprises: FPGA (Field-Programmable Gate Array, field programmable gate array) chip, the first interface chip receiving the first difference SPI signal from R-T unit be connected with the first interface P1 of fpga chip, the second interface chip exporting the second difference SPI signal to R-T unit be connected with the second interface P2 of fpga chip, the 3rd interface chip receiving the 3rd difference SPI signal from R-T unit be connected with the 3rd interface P3 of fpga chip, the 4th interface chip receiving the 4th difference SPI signal from R-T unit be connected with the 4th interface P4 of fpga chip, the DC power supply be connected with the power interface S of fpga chip, the single-chip microcomputer carrying out protocol configuration be connected with the 5th interface P5 of fpga chip, what be connected with the 6th interface P6 of fpga chip and single-chip microcomputer converts ethernet signal to or ethernet signal is converted to the Ethernet chip of SPI signal by SPI signal, be coupled to Ethernet interface transformer ethernet signal being carried out to transformation between computer and Ethernet chip.Alternatively, the direct voltage of DC power supply is 5.5 volts.
In the present embodiment, there is in fpga chip FIFO (First Input First Output ethernet signal being carried out to buffer memory, First Input First Output) memory, Ethernet chip connects the FIFO memory in fpga chip by the 6th interface P6.
The difference SPI signal that R-T unit receives or sends comprises multi-signal.Particularly, the first difference SPI signal is the clock signal that amplitude is identical, phase place is contrary, i.e. MSCK+ and MSCK-signal.Second difference SPI signal is the data output signal that amplitude is identical, phase place is contrary, i.e. MOSI+ and MOSI-signal.3rd difference SPI signal is the data input signal that amplitude is identical, phase place is contrary, i.e. MISO+ and MISO-signal.4th difference SPI signal is the enable signal that amplitude is identical, phase place is contrary, i.e. MSEN+ and MSEN-signal.
The Ethernet interface conversion equipment of the present embodiment is when practical application, and fpga chip is mainly used in receiving difference SPI signal and SPI signal difference SPI signal merged into SPI signal and arrive to FIFO memory transmission and reception.Single-chip microcomputer mainly completes and carries out protocol configuration to Ethernet chip, the agreement of configuration mainly contains TCP (Transmission Control Protocol, transmission control protocol), the agreements such as UPD (User Datagram Protocol, User Datagram Protoco (UDP)).In addition, the single-chip microcomputer foundation of also carrying out server and monitoring and the being connected work such as monitoring again after disconnecting.Ethernet chip reads SPI signal according to the transmission means of FIFO from FIFO memory, and converts SPI signal to ethernet signal.Then ethernet signal sends according to configured agreement by Single-chip Controlling Ethernet chip, and the ethernet signal that Ethernet chip sends by Ethernet interface transformer carries out transformation process, receives with applicable computer.Similarly, the ethernet signal that computer sends is sent to Ethernet chip after the process of Ethernet interface transformer transformation, Ethernet chip converts ethernet signal to SPI signal, and SPI signal is exported difference SPI signal to R-T unit by FPGA in a differential manner.
SPI signal converted to ethernet signal by Ethernet chip or convert ethernet signal to SPI signal, the obstacle in the Internet Transmission of the ground control station of unmanned plane can be solved, receive difference SPI signal by FPGA simultaneously, transmission rate is higher, through checking, actual transmissions data rate to more than 10Mbps, and can adopt the transmission means of difference SPI signal, good interference free performance can be possessed, can reliable data transmission be ensured at complex electromagnetic environment.
The Ethernet interface conversion equipment of the present embodiment can be expanded the interface of fpga chip, and Ethernet interface conversion equipment can be supported at most, and 7 R-T units carry out reception process to telemetry simultaneously.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all do within spirit of the present utility model and principle any amendment, equivalent to replace and improvement etc., all should be included within protection range of the present utility model.
Claims (4)
1. the Ethernet interface conversion equipment of a difference SPI signal, it is characterized in that, described Ethernet interface conversion equipment is coupled between computer and R-T unit, described Ethernet interface conversion equipment comprises: on-site programmable gate array FPGA chip, the first interface chip receiving the first differential serial Peripheral Interface SPI signal from described R-T unit be connected with the first interface of described fpga chip, the second interface chip exporting the second difference SPI signal to described R-T unit be connected with the second interface of described fpga chip, the 3rd interface chip receiving the 3rd difference SPI signal from described R-T unit be connected with the 3rd interface of described fpga chip, the 4th interface chip receiving the 4th difference SPI signal from described R-T unit be connected with the 4th interface of described fpga chip, the DC power supply be connected with the power interface of described fpga chip, the single-chip microcomputer carrying out protocol configuration be connected with the 5th interface of described fpga chip, what be connected with the 6th interface of described fpga chip and described single-chip microcomputer converts ethernet signal to or ethernet signal is converted to the Ethernet chip of SPI signal by SPI signal, be coupled to Ethernet interface transformer ethernet signal being carried out to transformation between described computer and described Ethernet chip.
2. Ethernet interface conversion equipment according to claim 1, is characterized in that, the direct voltage of described DC power supply is 5.5 volts.
3. Ethernet interface conversion equipment according to claim 1, it is characterized in that, have the First Input First Output FIFO memory of ethernet signal being carried out to buffer memory in described fpga chip, described Ethernet chip connects the FIFO memory in described fpga chip by the 6th interface.
4. Ethernet interface conversion equipment according to claim 1, it is characterized in that, described first difference SPI signal is the clock signal that amplitude is identical, phase place is contrary, described second difference SPI signal is the data output signal that amplitude is identical, phase place is contrary, described 3rd difference SPI signal is the data input signal that amplitude is identical, phase place is contrary, and described 4th difference SPI signal is the enable signal that amplitude is identical, phase place is contrary.
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| CN201420553502.2U CN204089891U (en) | 2014-09-24 | 2014-09-24 | The Ethernet interface conversion equipment of difference SPI signal |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106603121A (en) * | 2016-11-01 | 2017-04-26 | 山东康威通信技术股份有限公司 | Long-distance bandwidth/rate-variable high-speed difference communication device and system and communication method |
| CN108206715A (en) * | 2017-12-18 | 2018-06-26 | 无锡飞天侠科技有限公司 | A kind of unmanned vehicle formation flight control data catenary system based on Ethernet |
| CN111723041A (en) * | 2020-06-24 | 2020-09-29 | 西安联飞智能装备研究院有限责任公司 | Redundancy computer interface unit, redundancy control computer and data transmission method |
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2014
- 2014-09-24 CN CN201420553502.2U patent/CN204089891U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106603121A (en) * | 2016-11-01 | 2017-04-26 | 山东康威通信技术股份有限公司 | Long-distance bandwidth/rate-variable high-speed difference communication device and system and communication method |
| CN106603121B (en) * | 2016-11-01 | 2019-09-24 | 山东康威通信技术股份有限公司 | Remote bandwidth rates can be changed high-speed-differential communication device, system and communication means |
| CN108206715A (en) * | 2017-12-18 | 2018-06-26 | 无锡飞天侠科技有限公司 | A kind of unmanned vehicle formation flight control data catenary system based on Ethernet |
| CN108206715B (en) * | 2017-12-18 | 2022-01-18 | 中交遥感天域科技江苏有限公司 | Unmanned vehicles formation flight control data chain system based on ethernet |
| CN111723041A (en) * | 2020-06-24 | 2020-09-29 | 西安联飞智能装备研究院有限责任公司 | Redundancy computer interface unit, redundancy control computer and data transmission method |
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