CN205336307U - Network control module based on FIP communication - Google Patents
Network control module based on FIP communication Download PDFInfo
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- CN205336307U CN205336307U CN201521082921.3U CN201521082921U CN205336307U CN 205336307 U CN205336307 U CN 205336307U CN 201521082921 U CN201521082921 U CN 201521082921U CN 205336307 U CN205336307 U CN 205336307U
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Abstract
The utility model discloses a network control module based on FIP communication, network control card includes core control chip FPGA and FIP bus controller, the FPGA chip adopts XC6SLX9 -2FTG256C series chip, FIP bus controller includes two way redundant wroldFIP communication interface, FIP bus controller communicates with 2 way external interface panel wroldFIP1 panel and wroldFIP2 panel respectively through RS485, 2 way external interface panel wroldFIP1 panel and wroldFIP2 panel keep apart and outside locomotive communication through the transformer respectively again, the power bus of backplate converts 1.8V to through power converter DCDC and supplies power for network control module's integrated circuit board, network control module based on FIP communication, FIP interface end adopts the transformer to keep apart, entire system's interference immunity and stability have been increased. Control network card hardware adopts the FPGA chip of XC6SLX9 -2FTG256C series simultaneously, has good reusability and scalability, has satisfied the active demand that locomotive bus differentiation still can be multiplexing on current phase. The network standard NFC46 -604 who accords with the FIP field is and compatible international standard IEC1158 -2.
Description
Technical field
This utility model relates to WorldFIP communication technical field, is specifically related to a kind of network control module based on FIP communication。
Background technology
WorldFip is for the fieldbus of automated system, it is provided that the digitized between field apparatus and controller and controller connects, and WorldFip and Internet is similar, uses Manchester code transmission。But it is a kind of Token Ring。Network is made up of moderator and some subscriber stations, and its main feature can be summarized as real-time, synchronicity, reliability。Transfer rate currently used for WorldFip is 31.25K, 1M and 2.5M。Typical rate is 1Mbit/s。Typical transmission medium is technical grade Shielded Twisted Pair。Butted line box, 9 pin D type connector assemblies etc. have strict regulation。Each network segment is the longest is 1 kilometer。5 kilometers are extended to after adding repeater (Repeater)。
Along with China's sustained economic growth, railway traffic carrier have also been obtained the development advanced by leaps and bounds, and the safety of fast-developing gesture necessary guarantee railway operation of railway traffic, stability and reliability。And the EBIs such as WorldFIP, MVB, HDLC, CAN are the EBIs being most widely used on locomotive。Owing to WorldFip fieldbus shows unique characteristics in real-time, synchronicity, redundancy。Speed higher, with optical fiber be medium HVN also constantly release。Estimate that in several years in the future, WorldFip bus will be increasingly widely applied, but WorldFip fieldbus not only strict difinition communications protocol, and also strict difinition meets the transmission medium of industrial standard, rosette, connector assembly etc.。And the FIP of standard controls card and must adopt FULLFIP2 control chip, the data acquisition of the locomotive of realization and FIP network, otherwise cannot realize meeting network service, in order to realize the data interaction communication of the multiple bus of locomotive, develop a based on FPGA processor and the network control card of FIP of self-programming can seem very necessary。
Summary of the invention
This utility model provides a kind of network control module based on FIP communication, is mainly used in extension WorldFIP communication, overcomes the limitation of prior art。
The employed technical scheme comprise that network control board of this utility model includes kernel control chip FPGA and FIP bus control unit, described fpga chip adopts XC6SLX9-2FTG256C family chip, described FIP bus control unit includes the WroldFIP communication interface of two-way redundancy, FIP bus control unit is communicated with 2 road external interface panel WroldFIP1Panel and WroldFIP2Panel respectively by RS485, 2 road external interface panel WroldFIP1Panel and WroldFIP2Panel are again respectively through transformer isolation and external locomotive communication, the power bus of backboard converts, by power supply changeover device DC/DC, the board that 1.8V is network control module to and powers, described FIP bus control unit is communicated with other modules by the two-way OCTALBUSSWITCH in eight, three tunnel。
Also including optional RS485, RS422 and RS232 circuit, this circuit is positioned at asynchronous serial communication UART place and shares a DB9 interface。
Also include extension 8 road deck LED light interface circuits, be used for indicating communications status。
The power supply of the power bus of described backboard is 24V, is converted to 5V through 1 secondary source transducer DC/DC, is converted to 1.8V, 3.3V and 1.2V then through 1 secondary source transducer DC/DC, and 1.8V is that kernel control chip is powered, and 3.3V and 1.2V powers for other circuit。
Also include interface circuit RS232_EN, RS485_EN, RS422_EN and extension 8 road deck LED light interface circuits, select described interface circuit by 0 Europe resistance。
Also include Panel connector, for Ethernet differential signal and asynchronous serial communication UART signal are connected so far Panel connector。
The beneficial effects of the utility model are: based on the network control module of FIP communication, FIP interface end adopts transformer isolation, adds anti-interference and the stability of whole system。Control network interface card hardware simultaneously and adopt the fpga chip of XC6SLX9-2FTG256C series, there is good durability and extensibility, meet present stage locomotive bus differentiation still reusable urgent needs。Meet the network standard NFC46-604 and compatible international standard IEC1158-2 in FIP field。
Accompanying drawing explanation
Fig. 1 is that this utility model is based on the FIP network control module theory diagram communicated。
Detailed description of the invention
In conjunction with accompanying drawing 1, utility model being described further, a kind of network control module based on FIP communication, the kernel control chip of this network control module is the IP kernel of fpga chip serial for XC6SLX9-2FTG256C and independent research。IP kernel refers to FIP bus control unit (software realization), network control board includes kernel control chip FPGA and FIP bus control unit, its power supply originates from the 24V power bus of backboard BackBoard, 24V power supply is changed through power supply changeover device DC/DC and is converted DC1.8V to for kernel control chip XC6SLX9-2FTG256C again through power supply changeover device DC/DC after DC5V, DC5V converts DC3.3V and DC1.2V to for other circuit, it is therefore an objective to make power supply more reliable and more stable。
FPGAIP core (FIP bus control unit) based on the network control module employing independent research of FIP communication, FIP bus control unit includes the WroldFIP communication interface of two-way redundancy, FIP bus control unit is communicated with 2 road external interface panel WroldFIP1Panel and WroldFIP2Panel respectively by RS485,2 road external interface panel WroldFIP1Panel and WroldFIP2Panel respectively through transformer isolation and external locomotive communication, add anti-interference and the stability of whole system again。
Network control module also includes optional RS485, RS422 and RS232 circuit, and this circuit is positioned at asynchronous serial communication UART place and shares a DB9 interface。
This network control module also includes interface circuit RS232_EN, RS485_EN, RS422_EN and extension 8 road deck LED light circuit, selects above-mentioned different interface circuit by 0 Europe resistance, and LED light is used for indicating communications status。FIP bus control unit is communicated with other modules by the two-way OCTALBUSSWITCH in eight, three tunnel, and FIP bus control unit communicates CPLD for realizing starting management etc. by the two-way OCTALBUSSWITCH in eight, three tunnel with other modules。Ethernet differential signal and UART (RS232, RS485, RS422) signal, for being connected with daughter board SSFIP3U_IO-Subcard, are connected to Panel connector by this adapter by the BoardtoBoardConnector in Fig. 1。
FIP bus control unit is except realizing Manchester's code, decoding function, and it also provides for bus monitoring and watchdog function, and this is that the Hot Spare of bus, bus redundancy provide conveniently, improves the safety of bus。
Network control module based on FIP communication is used for extending WorldFIP communication and data process, the data acquisition of the locomotive of realization and FIP network, the data gathered include process data and message data, and this module comprises RS485, RS422 and RS232 circuit, a road gigabit Ethernet extension RJ45 interface。This network control module meets relevant international standard and highly reliable, stable function。Disclosure satisfy that the application of locomotive WorldFIP bus instantly, it is achieved the data interaction communication of the multiple bus of locomotive。Have the property that
● adopt FPGA to be met the real-time protocol (RTP) of IEC61375 standard by programming realization
● meet the network standard in FIP field: NFC46-604
● the network standard of compatible international scope: IEC1158-2.
● the network bandwidth 32.25Kbits/sec, 1Mbit/sec or 2.5Mbits/sec
This network control module has separate central processing units FPGA, it is possible to realize distinctive function by stand alone software。For locomotive real-time bus data and Realtime Alerts information are carried out completely monitoring, selectivity catch, by demand process and preserve vehicle integrated information；Also include for locomotive real-time bus data, warning message environmental variable, non real-time fault data are transmitted with carrying out car。To guarantee that can pass through WorldFIP bus, industry ethernet, CAN, serial bus, scaled-down version cpci bus etc. each other carries out the interworking of different pieces of information。There is good durability and extensibility, meet present stage locomotive bus differentiation still reusable urgent needs。
Claims (6)
1. based on the network control module of FIP communication, it is characterized in that: network control board includes kernel control chip FPGA and FIP bus control unit, described fpga chip adopts XC6SLX9-2FTG256C family chip, described FIP bus control unit includes the WroldFIP communication interface of two-way redundancy, FIP bus control unit is communicated with 2 road external interface panel WroldFIP1Panel and WroldFIP2Panel respectively by RS485, 2 road external interface panel WroldFIP1Panel and WroldFIP2Panel are again respectively through transformer isolation and external locomotive communication, the power bus of backboard converts, by power supply changeover device DC/DC, the board that 1.8V is network control module to and powers, described FIP bus control unit is communicated with other modules by the two-way OCTALBUSSWITCH in eight, three tunnel。
2. the network control module based on FIP communication according to claim 1, it is characterised in that: also including optional RS485, RS422 and RS232 circuit, this circuit is positioned at asynchronous serial communication UART place and shares a DB9 interface。
3. the network control module based on FIP communication according to claim 1, it is characterised in that: also include extension 8 road deck LED light interface circuits, be used for indicating communications status。
4. the network control module based on FIP communication according to claim 1, it is characterized in that: the power supply of the power bus of described backboard is 24V, 5V is converted to through 1 secondary source transducer DC/DC, 1.8V, 3.3V and 1.2V is converted to then through 1 secondary source transducer DC/DC, 1.8V is that kernel control chip is powered, and 3.3V and 1.2V powers for other circuit。
5. the network control module based on FIP communication according to claim 1, it is characterized in that: also include interface circuit RS232_EN, RS485_EN, RS422_EN and extension 8 road deck LED light interface circuits, select described interface circuit by 0 Europe resistance。
6. the network control module based on FIP communication according to claim 1, it is characterised in that: also include Panel connector, for Ethernet differential signal and asynchronous serial communication UART signal are connected so far Panel connector。
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| Application Number | Priority Date | Filing Date | Title |
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| CN201521082921.3U CN205336307U (en) | 2015-12-23 | 2015-12-23 | Network control module based on FIP communication |
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| CN201521082921.3U CN205336307U (en) | 2015-12-23 | 2015-12-23 | Network control module based on FIP communication |
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| CN205336307U true CN205336307U (en) | 2016-06-22 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105391611A (en) * | 2015-12-23 | 2016-03-09 | 中车大连机车研究所有限公司 | Network control module based on FIP communication |
| CN110050519A (en) * | 2016-10-07 | 2019-07-23 | 利奇得公司 | Modularization load-bearing part form factor for computing platform |
-
2015
- 2015-12-23 CN CN201521082921.3U patent/CN205336307U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105391611A (en) * | 2015-12-23 | 2016-03-09 | 中车大连机车研究所有限公司 | Network control module based on FIP communication |
| CN110050519A (en) * | 2016-10-07 | 2019-07-23 | 利奇得公司 | Modularization load-bearing part form factor for computing platform |
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